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repos/yazap/docs/src/std/compress	repos/yazap/docs/src/std/compress/deflate/deflate_fast.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>compress/deflate/deflate_fast.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-comment">// This encoding algorithm, which prioritizes speed over output size, is</span> </span> <span class="line" id="L2"><span class="tok-comment">// based on Snappy's LZ77-style encoder: github.com/golang/snappy</span> </span> <span class="line" id="L3"></span> <span class="line" id="L4"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L5"><span class="tok-kw">const</span> math = std.math;</span> <span class="line" id="L6"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L7"></span> <span class="line" id="L8"><span class="tok-kw">const</span> Allocator = std.mem.Allocator;</span> <span class="line" id="L9"></span> <span class="line" id="L10"><span class="tok-kw">const</span> deflate_const = <span class="tok-builtin">@import</span>(<span class="tok-str">"deflate_const.zig"</span>);</span> <span class="line" id="L11"><span class="tok-kw">const</span> deflate = <span class="tok-builtin">@import</span>(<span class="tok-str">"compressor.zig"</span>);</span> <span class="line" id="L12"><span class="tok-kw">const</span> token = <span class="tok-builtin">@import</span>(<span class="tok-str">"token.zig"</span>);</span> <span class="line" id="L13"></span> <span class="line" id="L14"><span class="tok-kw">const</span> base_match_length = deflate_const.base_match_length;</span> <span class="line" id="L15"><span class="tok-kw">const</span> base_match_offset = deflate_const.base_match_offset;</span> <span class="line" id="L16"><span class="tok-kw">const</span> max_match_length = deflate_const.max_match_length;</span> <span class="line" id="L17"><span class="tok-kw">const</span> max_match_offset = deflate_const.max_match_offset;</span> <span class="line" id="L18"><span class="tok-kw">const</span> max_store_block_size = deflate_const.max_store_block_size;</span> <span class="line" id="L19"></span> <span class="line" id="L20"><span class="tok-kw">const</span> table_bits = <span class="tok-number">14</span>; <span class="tok-comment">// Bits used in the table.</span> </span> <span class="line" id="L21"><span class="tok-kw">const</span> table_mask = table_size - <span class="tok-number">1</span>; <span class="tok-comment">// Mask for table indices. Redundant, but can eliminate bounds checks.</span> </span> <span class="line" id="L22"><span class="tok-kw">const</span> table_shift = <span class="tok-number">32</span> - table_bits; <span class="tok-comment">// Right-shift to get the table_bits most significant bits of a uint32.</span> </span> <span class="line" id="L23"><span class="tok-kw">const</span> table_size = <span class="tok-number">1</span> << table_bits; <span class="tok-comment">// Size of the table.</span> </span> <span class="line" id="L24"></span> <span class="line" id="L25"><span class="tok-comment">// Reset the buffer offset when reaching this.</span> </span> <span class="line" id="L26"><span class="tok-comment">// Offsets are stored between blocks as i32 values.</span> </span> <span class="line" id="L27"><span class="tok-comment">// Since the offset we are checking against is at the beginning</span> </span> <span class="line" id="L28"><span class="tok-comment">// of the buffer, we need to subtract the current and input</span> </span> <span class="line" id="L29"><span class="tok-comment">// buffer to not risk overflowing the i32.</span> </span> <span class="line" id="L30"><span class="tok-kw">const</span> buffer_reset = math.maxInt(<span class="tok-type">i32</span>) - max_store_block_size * <span class="tok-number">2</span>;</span> <span class="line" id="L31"></span> <span class="line" id="L32"><span class="tok-kw">fn</span> <span class="tok-fn">load32</span>(b: []<span class="tok-type">u8</span>, i: <span class="tok-type">i32</span>) <span class="tok-type">u32</span> {</span> <span class="line" id="L33"> <span class="tok-kw">var</span> s = b[<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(i)) .. <span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(i)) + <span class="tok-number">4</span>];</span> <span class="line" id="L34"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(s[<span class="tok-number">0</span>])) \|</span> <span class="line" id="L35"> <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(s[<span class="tok-number">1</span>])) << <span class="tok-number">8</span> \|</span> <span class="line" id="L36"> <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(s[<span class="tok-number">2</span>])) << <span class="tok-number">16</span> \|</span> <span class="line" id="L37"> <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(s[<span class="tok-number">3</span>])) << <span class="tok-number">24</span>;</span> <span class="line" id="L38">}</span> <span class="line" id="L39"></span> <span class="line" id="L40"><span class="tok-kw">fn</span> <span class="tok-fn">load64</span>(b: []<span class="tok-type">u8</span>, i: <span class="tok-type">i32</span>) <span class="tok-type">u64</span> {</span> <span class="line" id="L41"> <span class="tok-kw">var</span> s = b[<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(i))..<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(i + <span class="tok-number">8</span>))];</span> <span class="line" id="L42"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@intCast</span>(s[<span class="tok-number">0</span>])) \|</span> <span class="line" id="L43"> <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@intCast</span>(s[<span class="tok-number">1</span>])) << <span class="tok-number">8</span> \|</span> <span class="line" id="L44"> <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@intCast</span>(s[<span class="tok-number">2</span>])) << <span class="tok-number">16</span> \|</span> <span class="line" id="L45"> <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@intCast</span>(s[<span class="tok-number">3</span>])) << <span class="tok-number">24</span> \|</span> <span class="line" id="L46"> <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@intCast</span>(s[<span class="tok-number">4</span>])) << <span class="tok-number">32</span> \|</span> <span class="line" id="L47"> <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@intCast</span>(s[<span class="tok-number">5</span>])) << <span class="tok-number">40</span> \|</span> <span class="line" id="L48"> <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@intCast</span>(s[<span class="tok-number">6</span>])) << <span class="tok-number">48</span> \|</span> <span class="line" id="L49"> <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@intCast</span>(s[<span class="tok-number">7</span>])) << <span class="tok-number">56</span>;</span> <span class="line" id="L50">}</span> <span class="line" id="L51"></span> <span class="line" id="L52"><span class="tok-kw">fn</span> <span class="tok-fn">hash</span>(u: <span class="tok-type">u32</span>) <span class="tok-type">u32</span> {</span> <span class="line" id="L53"> <span class="tok-kw">return</span> (u % <span class="tok-number">0x1e35a7bd</span>) >> table_shift;</span> <span class="line" id="L54">}</span> <span class="line" id="L55"></span> <span class="line" id="L56"><span class="tok-comment">// These constants are defined by the Snappy implementation so that its</span> </span> <span class="line" id="L57"><span class="tok-comment">// assembly implementation can fast-path some 16-bytes-at-a-time copies.</span> </span> <span class="line" id="L58"><span class="tok-comment">// They aren't necessary in the pure Go implementation, and may not be</span> </span> <span class="line" id="L59"><span class="tok-comment">// necessary in Zig, but using the same thresholds doesn't really hurt.</span> </span> <span class="line" id="L60"><span class="tok-kw">const</span> input_margin = <span class="tok-number">16</span> - <span class="tok-number">1</span>;</span> <span class="line" id="L61"><span class="tok-kw">const</span> min_non_literal_block_size = <span class="tok-number">1</span> + <span class="tok-number">1</span> + input_margin;</span> <span class="line" id="L62"></span> <span class="line" id="L63"><span class="tok-kw">const</span> TableEntry = <span class="tok-kw">struct</span> {</span> <span class="line" id="L64"> val: <span class="tok-type">u32</span>, <span class="tok-comment">// Value at destination</span> </span> <span class="line" id="L65"> offset: <span class="tok-type">i32</span>,</span> <span class="line" id="L66">};</span> <span class="line" id="L67"></span> <span class="line" id="L68"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">deflateFast</span>() DeflateFast {</span> <span class="line" id="L69"> <span class="tok-kw">return</span> DeflateFast{</span> <span class="line" id="L70"> .table = [_]TableEntry{.{ .val = <span class="tok-number">0</span>, .offset = <span class="tok-number">0</span> }} * table_size,</span> <span class="line" id="L71"> .prev = <span class="tok-null">undefined</span>,</span> <span class="line" id="L72"> .prev_len = <span class="tok-number">0</span>,</span> <span class="line" id="L73"> .cur = max_store_block_size,</span> <span class="line" id="L74"> .allocator = <span class="tok-null">undefined</span>,</span> <span class="line" id="L75"> };</span> <span class="line" id="L76">}</span> <span class="line" id="L77"></span> <span class="line" id="L78"><span class="tok-comment">// DeflateFast maintains the table for matches,</span> </span> <span class="line" id="L79"><span class="tok-comment">// and the previous byte block for cross block matching.</span> </span> <span class="line" id="L80"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> DeflateFast = <span class="tok-kw">struct</span> {</span> <span class="line" id="L81"> table: [table_size]TableEntry,</span> <span class="line" id="L82"> prev: []<span class="tok-type">u8</span>, <span class="tok-comment">// Previous block, zero length if unknown.</span> </span> <span class="line" id="L83"> prev_len: <span class="tok-type">u32</span>, <span class="tok-comment">// Previous block length</span> </span> <span class="line" id="L84"> cur: <span class="tok-type">i32</span>, <span class="tok-comment">// Current match offset.</span> </span> <span class="line" id="L85"> allocator: Allocator,</span> <span class="line" id="L86"></span> <span class="line" id="L87"> <span class="tok-kw">const</span> Self = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L88"></span> <span class="line" id="L89"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">init</span>(self: Self, allocator: Allocator) !<span class="tok-type">void</span> {</span> <span class="line" id="L90"> self.allocator = allocator;</span> <span class="line" id="L91"> self.prev = <span class="tok-kw">try</span> allocator.alloc(<span class="tok-type">u8</span>, max_store_block_size);</span> <span class="line" id="L92"> self.prev_len = <span class="tok-number">0</span>;</span> <span class="line" id="L93"> }</span> <span class="line" id="L94"></span> <span class="line" id="L95"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">deinit</span>(self: Self) <span class="tok-type">void</span> {</span> <span class="line" id="L96"> self.allocator.free(self.prev);</span> <span class="line" id="L97"> self.prev_len = <span class="tok-number">0</span>;</span> <span class="line" id="L98"> }</span> <span class="line" id="L99"></span> <span class="line" id="L100"> <span class="tok-comment">// Encodes a block given in `src` and appends tokens to `dst` and returns the result.</span> </span> <span class="line" id="L101"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">encode</span>(self: Self, dst: []token.Token, tokens_count: <span class="tok-type">u16</span>, src: []<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L102"></span> <span class="line" id="L103"> <span class="tok-comment">// Ensure that self.cur doesn't wrap.</span> </span> <span class="line" id="L104"> <span class="tok-kw">if</span> (self.cur >= buffer_reset) {</span> <span class="line" id="L105"> self.shiftOffsets();</span> <span class="line" id="L106"> }</span> <span class="line" id="L107"></span> <span class="line" id="L108"> <span class="tok-comment">// This check isn't in the Snappy implementation, but there, the caller</span> </span> <span class="line" id="L109"> <span class="tok-comment">// instead of the callee handles this case.</span> </span> <span class="line" id="L110"> <span class="tok-kw">if</span> (src.len < min_non_literal_block_size) {</span> <span class="line" id="L111"> self.cur += max_store_block_size;</span> <span class="line" id="L112"> self.prev_len = <span class="tok-number">0</span>;</span> <span class="line" id="L113"> emitLiteral(dst, tokens_count, src);</span> <span class="line" id="L114"> <span class="tok-kw">return</span>;</span> <span class="line" id="L115"> }</span> <span class="line" id="L116"></span> <span class="line" id="L117"> <span class="tok-comment">// s_limit is when to stop looking for offset/length copies. The input_margin</span> </span> <span class="line" id="L118"> <span class="tok-comment">// lets us use a fast path for emitLiteral in the main loop, while we are</span> </span> <span class="line" id="L119"> <span class="tok-comment">// looking for copies.</span> </span> <span class="line" id="L120"> <span class="tok-kw">var</span> s_limit = <span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, <span class="tok-builtin">@intCast</span>(src.len - input_margin));</span> <span class="line" id="L121"></span> <span class="line" id="L122"> <span class="tok-comment">// next_emit is where in src the next emitLiteral should start from.</span> </span> <span class="line" id="L123"> <span class="tok-kw">var</span> next_emit: <span class="tok-type">i32</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L124"> <span class="tok-kw">var</span> s: <span class="tok-type">i32</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L125"> <span class="tok-kw">var</span> cv: <span class="tok-type">u32</span> = load32(src, s);</span> <span class="line" id="L126"> <span class="tok-kw">var</span> next_hash: <span class="tok-type">u32</span> = hash(cv);</span> <span class="line" id="L127"></span> <span class="line" id="L128"> outer: <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L129"> <span class="tok-comment">// Copied from the C++ snappy implementation:</span> </span> <span class="line" id="L130"> <span class="tok-comment">//</span> </span> <span class="line" id="L131"> <span class="tok-comment">// Heuristic match skipping: If 32 bytes are scanned with no matches</span> </span> <span class="line" id="L132"> <span class="tok-comment">// found, start looking only at every other byte. If 32 more bytes are</span> </span> <span class="line" id="L133"> <span class="tok-comment">// scanned (or skipped), look at every third byte, etc.. When a match</span> </span> <span class="line" id="L134"> <span class="tok-comment">// is found, immediately go back to looking at every byte. This is a</span> </span> <span class="line" id="L135"> <span class="tok-comment">// small loss (~5% performance, ~0.1% density) for compressible data</span> </span> <span class="line" id="L136"> <span class="tok-comment">// due to more bookkeeping, but for non-compressible data (such as</span> </span> <span class="line" id="L137"> <span class="tok-comment">// JPEG) it's a huge win since the compressor quickly "realizes" the</span> </span> <span class="line" id="L138"> <span class="tok-comment">// data is incompressible and doesn't bother looking for matches</span> </span> <span class="line" id="L139"> <span class="tok-comment">// everywhere.</span> </span> <span class="line" id="L140"> <span class="tok-comment">//</span> </span> <span class="line" id="L141"> <span class="tok-comment">// The "skip" variable keeps track of how many bytes there are since</span> </span> <span class="line" id="L142"> <span class="tok-comment">// the last match; dividing it by 32 (ie. right-shifting by five) gives</span> </span> <span class="line" id="L143"> <span class="tok-comment">// the number of bytes to move ahead for each iteration.</span> </span> <span class="line" id="L144"> <span class="tok-kw">var</span> skip: <span class="tok-type">i32</span> = <span class="tok-number">32</span>;</span> <span class="line" id="L145"></span> <span class="line" id="L146"> <span class="tok-kw">var</span> next_s: <span class="tok-type">i32</span> = s;</span> <span class="line" id="L147"> <span class="tok-kw">var</span> candidate: TableEntry = <span class="tok-null">undefined</span>;</span> <span class="line" id="L148"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L149"> s = next_s;</span> <span class="line" id="L150"> <span class="tok-kw">var</span> bytes_between_hash_lookups = skip >> <span class="tok-number">5</span>;</span> <span class="line" id="L151"> next_s = s + bytes_between_hash_lookups;</span> <span class="line" id="L152"> skip += bytes_between_hash_lookups;</span> <span class="line" id="L153"> <span class="tok-kw">if</span> (next_s > s_limit) {</span> <span class="line" id="L154"> <span class="tok-kw">break</span> :outer;</span> <span class="line" id="L155"> }</span> <span class="line" id="L156"> candidate = self.table[next_hash & table_mask];</span> <span class="line" id="L157"> <span class="tok-kw">var</span> now = load32(src, next_s);</span> <span class="line" id="L158"> self.table[next_hash & table_mask] = .{ .offset = s + self.cur, .val = cv };</span> <span class="line" id="L159"> next_hash = hash(now);</span> <span class="line" id="L160"></span> <span class="line" id="L161"> <span class="tok-kw">var</span> offset = s - (candidate.offset - self.cur);</span> <span class="line" id="L162"> <span class="tok-kw">if</span> (offset > max_match_offset <span class="tok-kw">or</span> cv != candidate.val) {</span> <span class="line" id="L163"> <span class="tok-comment">// Out of range or not matched.</span> </span> <span class="line" id="L164"> cv = now;</span> <span class="line" id="L165"> <span class="tok-kw">continue</span>;</span> <span class="line" id="L166"> }</span> <span class="line" id="L167"> <span class="tok-kw">break</span>;</span> <span class="line" id="L168"> }</span> <span class="line" id="L169"></span> <span class="line" id="L170"> <span class="tok-comment">// A 4-byte match has been found. We'll later see if more than 4 bytes</span> </span> <span class="line" id="L171"> <span class="tok-comment">// match. But, prior to the match, src[next_emit..s] are unmatched. Emit</span> </span> <span class="line" id="L172"> <span class="tok-comment">// them as literal bytes.</span> </span> <span class="line" id="L173"> emitLiteral(dst, tokens_count, src[<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(next_emit))..<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(s))]);</span> <span class="line" id="L174"></span> <span class="line" id="L175"> <span class="tok-comment">// Call emitCopy, and then see if another emitCopy could be our next</span> </span> <span class="line" id="L176"> <span class="tok-comment">// move. Repeat until we find no match for the input immediately after</span> </span> <span class="line" id="L177"> <span class="tok-comment">// what was consumed by the last emitCopy call.</span> </span> <span class="line" id="L178"> <span class="tok-comment">//</span> </span> <span class="line" id="L179"> <span class="tok-comment">// If we exit this loop normally then we need to call emitLiteral next,</span> </span> <span class="line" id="L180"> <span class="tok-comment">// though we don't yet know how big the literal will be. We handle that</span> </span> <span class="line" id="L181"> <span class="tok-comment">// by proceeding to the next iteration of the main loop. We also can</span> </span> <span class="line" id="L182"> <span class="tok-comment">// exit this loop via goto if we get close to exhausting the input.</span> </span> <span class="line" id="L183"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L184"> <span class="tok-comment">// Invariant: we have a 4-byte match at s, and no need to emit any</span> </span> <span class="line" id="L185"> <span class="tok-comment">// literal bytes prior to s.</span> </span> <span class="line" id="L186"></span> <span class="line" id="L187"> <span class="tok-comment">// Extend the 4-byte match as long as possible.</span> </span> <span class="line" id="L188"> <span class="tok-comment">//</span> </span> <span class="line" id="L189"> s += <span class="tok-number">4</span>;</span> <span class="line" id="L190"> <span class="tok-kw">var</span> t = candidate.offset - self.cur + <span class="tok-number">4</span>;</span> <span class="line" id="L191"> <span class="tok-kw">var</span> l = self.matchLen(s, t, src);</span> <span class="line" id="L192"></span> <span class="line" id="L193"> <span class="tok-comment">// matchToken is flate's equivalent of Snappy's emitCopy. (length,offset)</span> </span> <span class="line" id="L194"> dst[tokens_count.] = token.matchToken(</span> <span class="line" id="L195"> <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(l + <span class="tok-number">4</span> - base_match_length)),</span> <span class="line" id="L196"> <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(s - t - base_match_offset)),</span> <span class="line" id="L197"> );</span> <span class="line" id="L198"> tokens_count. += <span class="tok-number">1</span>;</span> <span class="line" id="L199"> s += l;</span> <span class="line" id="L200"> next_emit = s;</span> <span class="line" id="L201"> <span class="tok-kw">if</span> (s >= s_limit) {</span> <span class="line" id="L202"> <span class="tok-kw">break</span> :outer;</span> <span class="line" id="L203"> }</span> <span class="line" id="L204"></span> <span class="line" id="L205"> <span class="tok-comment">// We could immediately start working at s now, but to improve</span> </span> <span class="line" id="L206"> <span class="tok-comment">// compression we first update the hash table at s-1 and at s. If</span> </span> <span class="line" id="L207"> <span class="tok-comment">// another emitCopy is not our next move, also calculate next_hash</span> </span> <span class="line" id="L208"> <span class="tok-comment">// at s+1. At least on amd64 architecture, these three hash calculations</span> </span> <span class="line" id="L209"> <span class="tok-comment">// are faster as one load64 call (with some shifts) instead of</span> </span> <span class="line" id="L210"> <span class="tok-comment">// three load32 calls.</span> </span> <span class="line" id="L211"> <span class="tok-kw">var</span> x = load64(src, s - <span class="tok-number">1</span>);</span> <span class="line" id="L212"> <span class="tok-kw">var</span> prev_hash = hash(<span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@truncate</span>(x)));</span> <span class="line" id="L213"> self.table[prev_hash & table_mask] = TableEntry{</span> <span class="line" id="L214"> .offset = self.cur + s - <span class="tok-number">1</span>,</span> <span class="line" id="L215"> .val = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@truncate</span>(x)),</span> <span class="line" id="L216"> };</span> <span class="line" id="L217"> x >>= <span class="tok-number">8</span>;</span> <span class="line" id="L218"> <span class="tok-kw">var</span> curr_hash = hash(<span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@truncate</span>(x)));</span> <span class="line" id="L219"> candidate = self.table[curr_hash & table_mask];</span> <span class="line" id="L220"> self.table[curr_hash & table_mask] = TableEntry{</span> <span class="line" id="L221"> .offset = self.cur + s,</span> <span class="line" id="L222"> .val = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@truncate</span>(x)),</span> <span class="line" id="L223"> };</span> <span class="line" id="L224"></span> <span class="line" id="L225"> <span class="tok-kw">var</span> offset = s - (candidate.offset - self.cur);</span> <span class="line" id="L226"> <span class="tok-kw">if</span> (offset > max_match_offset <span class="tok-kw">or</span> <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@truncate</span>(x)) != candidate.val) {</span> <span class="line" id="L227"> cv = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@truncate</span>(x >> <span class="tok-number">8</span>));</span> <span class="line" id="L228"> next_hash = hash(cv);</span> <span class="line" id="L229"> s += <span class="tok-number">1</span>;</span> <span class="line" id="L230"> <span class="tok-kw">break</span>;</span> <span class="line" id="L231"> }</span> <span class="line" id="L232"> }</span> <span class="line" id="L233"> }</span> <span class="line" id="L234"></span> <span class="line" id="L235"> <span class="tok-kw">if</span> (<span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(next_emit)) < src.len) {</span> <span class="line" id="L236"> emitLiteral(dst, tokens_count, src[<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(next_emit))..]);</span> <span class="line" id="L237"> }</span> <span class="line" id="L238"> self.cur += <span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, <span class="tok-builtin">@intCast</span>(src.len));</span> <span class="line" id="L239"> self.prev_len = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(src.len));</span> <span class="line" id="L240"> <span class="tok-builtin">@memcpy</span>(self.prev[<span class="tok-number">0</span>..self.prev_len], src);</span> <span class="line" id="L241"> <span class="tok-kw">return</span>;</span> <span class="line" id="L242"> }</span> <span class="line" id="L243"></span> <span class="line" id="L244"> <span class="tok-kw">fn</span> <span class="tok-fn">emitLiteral</span>(dst: []token.Token, tokens_count: <span class="tok-type">u16</span>, lit: []<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L245"> <span class="tok-kw">for</span> (lit) \|v\| {</span> <span class="line" id="L246"> dst[tokens_count.] = token.literalToken(<span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(v)));</span> <span class="line" id="L247"> tokens_count.* += <span class="tok-number">1</span>;</span> <span class="line" id="L248"> }</span> <span class="line" id="L249"> <span class="tok-kw">return</span>;</span> <span class="line" id="L250"> }</span> <span class="line" id="L251"></span> <span class="line" id="L252"> <span class="tok-comment">// matchLen returns the match length between src[s..] and src[t..].</span> </span> <span class="line" id="L253"> <span class="tok-comment">// t can be negative to indicate the match is starting in self.prev.</span> </span> <span class="line" id="L254"> <span class="tok-comment">// We assume that src[s-4 .. s] and src[t-4 .. t] already match.</span> </span> <span class="line" id="L255"> <span class="tok-kw">fn</span> <span class="tok-fn">matchLen</span>(self: Self, s: <span class="tok-type">i32</span>, t: <span class="tok-type">i32</span>, src: []<span class="tok-type">u8</span>) <span class="tok-type">i32</span> {</span> <span class="line" id="L256"> <span class="tok-kw">var</span> s1 = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(s)) + max_match_length - <span class="tok-number">4</span>;</span> <span class="line" id="L257"> <span class="tok-kw">if</span> (s1 > src.len) {</span> <span class="line" id="L258"> s1 = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(src.len));</span> <span class="line" id="L259"> }</span> <span class="line" id="L260"></span> <span class="line" id="L261"> <span class="tok-comment">// If we are inside the current block</span> </span> <span class="line" id="L262"> <span class="tok-kw">if</span> (t >= <span class="tok-number">0</span>) {</span> <span class="line" id="L263"> <span class="tok-kw">var</span> b = src[<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(t))..];</span> <span class="line" id="L264"> <span class="tok-kw">var</span> a = src[<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(s))..<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(s1))];</span> <span class="line" id="L265"> b = b[<span class="tok-number">0</span>..a.len];</span> <span class="line" id="L266"> <span class="tok-comment">// Extend the match to be as long as possible.</span> </span> <span class="line" id="L267"> <span class="tok-kw">for</span> (a, <span class="tok-number">0</span>..) \|_, i\| {</span> <span class="line" id="L268"> <span class="tok-kw">if</span> (a[i] != b[i]) {</span> <span class="line" id="L269"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, <span class="tok-builtin">@intCast</span>(i));</span> <span class="line" id="L270"> }</span> <span class="line" id="L271"> }</span> <span class="line" id="L272"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, <span class="tok-builtin">@intCast</span>(a.len));</span> <span class="line" id="L273"> }</span> <span class="line" id="L274"></span> <span class="line" id="L275"> <span class="tok-comment">// We found a match in the previous block.</span> </span> <span class="line" id="L276"> <span class="tok-kw">var</span> tp = <span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, <span class="tok-builtin">@intCast</span>(self.prev_len)) + t;</span> <span class="line" id="L277"> <span class="tok-kw">if</span> (tp < <span class="tok-number">0</span>) {</span> <span class="line" id="L278"> <span class="tok-kw">return</span> <span class="tok-number">0</span>;</span> <span class="line" id="L279"> }</span> <span class="line" id="L280"></span> <span class="line" id="L281"> <span class="tok-comment">// Extend the match to be as long as possible.</span> </span> <span class="line" id="L282"> <span class="tok-kw">var</span> a = src[<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(s))..<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(s1))];</span> <span class="line" id="L283"> <span class="tok-kw">var</span> b = self.prev[<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(tp))..<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(self.prev_len))];</span> <span class="line" id="L284"> <span class="tok-kw">if</span> (b.len > a.len) {</span> <span class="line" id="L285"> b = b[<span class="tok-number">0</span>..a.len];</span> <span class="line" id="L286"> }</span> <span class="line" id="L287"> a = a[<span class="tok-number">0</span>..b.len];</span> <span class="line" id="L288"> <span class="tok-kw">for</span> (b, <span class="tok-number">0</span>..) \|_, i\| {</span> <span class="line" id="L289"> <span class="tok-kw">if</span> (a[i] != b[i]) {</span> <span class="line" id="L290"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, <span class="tok-builtin">@intCast</span>(i));</span> <span class="line" id="L291"> }</span> <span class="line" id="L292"> }</span> <span class="line" id="L293"></span> <span class="line" id="L294"> <span class="tok-comment">// If we reached our limit, we matched everything we are</span> </span> <span class="line" id="L295"> <span class="tok-comment">// allowed to in the previous block and we return.</span> </span> <span class="line" id="L296"> <span class="tok-kw">var</span> n = <span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, <span class="tok-builtin">@intCast</span>(b.len));</span> <span class="line" id="L297"> <span class="tok-kw">if</span> (<span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(s + n)) == s1) {</span> <span class="line" id="L298"> <span class="tok-kw">return</span> n;</span> <span class="line" id="L299"> }</span> <span class="line" id="L300"></span> <span class="line" id="L301"> <span class="tok-comment">// Continue looking for more matches in the current block.</span> </span> <span class="line" id="L302"> a = src[<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(s + n))..<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(s1))];</span> <span class="line" id="L303"> b = src[<span class="tok-number">0</span>..a.len];</span> <span class="line" id="L304"> <span class="tok-kw">for</span> (a, <span class="tok-number">0</span>..) \|_, i\| {</span> <span class="line" id="L305"> <span class="tok-kw">if</span> (a[i] != b[i]) {</span> <span class="line" id="L306"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, <span class="tok-builtin">@intCast</span>(i)) + n;</span> <span class="line" id="L307"> }</span> <span class="line" id="L308"> }</span> <span class="line" id="L309"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, <span class="tok-builtin">@intCast</span>(a.len)) + n;</span> <span class="line" id="L310"> }</span> <span class="line" id="L311"></span> <span class="line" id="L312"> <span class="tok-comment">// Reset resets the encoding history.</span> </span> <span class="line" id="L313"> <span class="tok-comment">// This ensures that no matches are made to the previous block.</span> </span> <span class="line" id="L314"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">reset</span>(self: Self) <span class="tok-type">void</span> {</span> <span class="line" id="L315"> self.prev_len = <span class="tok-number">0</span>;</span> <span class="line" id="L316"> <span class="tok-comment">// Bump the offset, so all matches will fail distance check.</span> </span> <span class="line" id="L317"> <span class="tok-comment">// Nothing should be >= self.cur in the table.</span> </span> <span class="line" id="L318"> self.cur += max_match_offset;</span> <span class="line" id="L319"></span> <span class="line" id="L320"> <span class="tok-comment">// Protect against self.cur wraparound.</span> </span> <span class="line" id="L321"> <span class="tok-kw">if</span> (self.cur >= buffer_reset) {</span> <span class="line" id="L322"> self.shiftOffsets();</span> <span class="line" id="L323"> }</span> <span class="line" id="L324"> }</span> <span class="line" id="L325"></span> <span class="line" id="L326"> <span class="tok-comment">// shiftOffsets will shift down all match offset.</span> </span> <span class="line" id="L327"> <span class="tok-comment">// This is only called in rare situations to prevent integer overflow.</span> </span> <span class="line" id="L328"> <span class="tok-comment">//</span> </span> <span class="line" id="L329"> <span class="tok-comment">// See https://golang.org/issue/18636 and https://golang.org/issues/34121.</span> </span> <span class="line" id="L330"> <span class="tok-kw">fn</span> <span class="tok-fn">shiftOffsets</span>(self: Self) <span class="tok-type">void</span> {</span> <span class="line" id="L331"> <span class="tok-kw">if</span> (self.prev_len == <span class="tok-number">0</span>) {</span> <span class="line" id="L332"> <span class="tok-comment">// We have no history; just clear the table.</span> </span> <span class="line" id="L333"> <span class="tok-kw">for</span> (self.table, <span class="tok-number">0</span>..) \|_, i\| {</span> <span class="line" id="L334"> self.table[i] = TableEntry{ .val = <span class="tok-number">0</span>, .offset = <span class="tok-number">0</span> };</span> <span class="line" id="L335"> }</span> <span class="line" id="L336"> self.cur = max_match_offset + <span class="tok-number">1</span>;</span> <span class="line" id="L337"> <span class="tok-kw">return</span>;</span> <span class="line" id="L338"> }</span> <span class="line" id="L339"></span> <span class="line" id="L340"> <span class="tok-comment">// Shift down everything in the table that isn't already too far away.</span> </span> <span class="line" id="L341"> <span class="tok-kw">for</span> (self.table, <span class="tok-number">0</span>..) \|_, i\| {</span> <span class="line" id="L342"> <span class="tok-kw">var</span> v = self.table[i].offset - self.cur + max_match_offset + <span class="tok-number">1</span>;</span> <span class="line" id="L343"> <span class="tok-kw">if</span> (v < <span class="tok-number">0</span>) {</span> <span class="line" id="L344"> <span class="tok-comment">// We want to reset self.cur to max_match_offset + 1, so we need to shift</span> </span> <span class="line" id="L345"> <span class="tok-comment">// all table entries down by (self.cur - (max_match_offset + 1)).</span> </span> <span class="line" id="L346"> <span class="tok-comment">// Because we ignore matches > max_match_offset, we can cap</span> </span> <span class="line" id="L347"> <span class="tok-comment">// any negative offsets at 0.</span> </span> <span class="line" id="L348"> v = <span class="tok-number">0</span>;</span> <span class="line" id="L349"> }</span> <span class="line" id="L350"> self.table[i].offset = v;</span> <span class="line" id="L351"> }</span> <span class="line" id="L352"> self.cur = max_match_offset + <span class="tok-number">1</span>;</span> <span class="line" id="L353"> }</span> <span class="line" id="L354">};</span> <span class="line" id="L355"></span> <span class="line" id="L356"><span class="tok-kw">test</span> <span class="tok-str">"best speed match 1/3"</span> {</span> <span class="line" id="L357"> <span class="tok-kw">const</span> expectEqual = std.testing.expectEqual;</span> <span class="line" id="L358"></span> <span class="line" id="L359"> {</span> <span class="line" id="L360"> <span class="tok-kw">var</span> previous = [_]<span class="tok-type">u8</span>{ <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span> };</span> <span class="line" id="L361"> <span class="tok-kw">var</span> e = DeflateFast{</span> <span class="line" id="L362"> .prev = &previous,</span> <span class="line" id="L363"> .prev_len = previous.len,</span> <span class="line" id="L364"> .table = <span class="tok-null">undefined</span>,</span> <span class="line" id="L365"> .allocator = <span class="tok-null">undefined</span>,</span> <span class="line" id="L366"> .cur = <span class="tok-number">0</span>,</span> <span class="line" id="L367"> };</span> <span class="line" id="L368"> <span class="tok-kw">var</span> current = [_]<span class="tok-type">u8</span>{ <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span> };</span> <span class="line" id="L369"> <span class="tok-kw">var</span> got: <span class="tok-type">i32</span> = e.matchLen(<span class="tok-number">3</span>, -<span class="tok-number">3</span>, &current);</span> <span class="line" id="L370"> <span class="tok-kw">try</span> expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, <span class="tok-number">6</span>), got);</span> <span class="line" id="L371"> }</span> <span class="line" id="L372"> {</span> <span class="line" id="L373"> <span class="tok-kw">var</span> previous = [_]<span class="tok-type">u8</span>{ <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span> };</span> <span class="line" id="L374"> <span class="tok-kw">var</span> e = DeflateFast{</span> <span class="line" id="L375"> .prev = &previous,</span> <span class="line" id="L376"> .prev_len = previous.len,</span> <span class="line" id="L377"> .table = <span class="tok-null">undefined</span>,</span> <span class="line" id="L378"> .allocator = <span class="tok-null">undefined</span>,</span> <span class="line" id="L379"> .cur = <span class="tok-number">0</span>,</span> <span class="line" id="L380"> };</span> <span class="line" id="L381"> <span class="tok-kw">var</span> current = [_]<span class="tok-type">u8</span>{ <span class="tok-number">2</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span> };</span> <span class="line" id="L382"> <span class="tok-kw">var</span> got: <span class="tok-type">i32</span> = e.matchLen(<span class="tok-number">3</span>, -<span class="tok-number">3</span>, &current);</span> <span class="line" id="L383"> <span class="tok-kw">try</span> expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, <span class="tok-number">3</span>), got);</span> <span class="line" id="L384"> }</span> <span class="line" id="L385"> {</span> <span class="line" id="L386"> <span class="tok-kw">var</span> previous = [_]<span class="tok-type">u8</span>{ <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">1</span> };</span> <span class="line" id="L387"> <span class="tok-kw">var</span> e = DeflateFast{</span> <span class="line" id="L388"> .prev = &previous,</span> <span class="line" id="L389"> .prev_len = previous.len,</span> <span class="line" id="L390"> .table = <span class="tok-null">undefined</span>,</span> <span class="line" id="L391"> .allocator = <span class="tok-null">undefined</span>,</span> <span class="line" id="L392"> .cur = <span class="tok-number">0</span>,</span> <span class="line" id="L393"> };</span> <span class="line" id="L394"> <span class="tok-kw">var</span> current = [_]<span class="tok-type">u8</span>{ <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span> };</span> <span class="line" id="L395"> <span class="tok-kw">var</span> got: <span class="tok-type">i32</span> = e.matchLen(<span class="tok-number">3</span>, -<span class="tok-number">3</span>, &current);</span> <span class="line" id="L396"> <span class="tok-kw">try</span> expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, <span class="tok-number">2</span>), got);</span> <span class="line" id="L397"> }</span> <span class="line" id="L398"> {</span> <span class="line" id="L399"> <span class="tok-kw">var</span> previous = [_]<span class="tok-type">u8</span>{ <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span> };</span> <span class="line" id="L400"> <span class="tok-kw">var</span> e = DeflateFast{</span> <span class="line" id="L401"> .prev = &previous,</span> <span class="line" id="L402"> .prev_len = previous.len,</span> <span class="line" id="L403"> .table = <span class="tok-null">undefined</span>,</span> <span class="line" id="L404"> .allocator = <span class="tok-null">undefined</span>,</span> <span class="line" id="L405"> .cur = <span class="tok-number">0</span>,</span> <span class="line" id="L406"> };</span> <span class="line" id="L407"> <span class="tok-kw">var</span> current = [_]<span class="tok-type">u8</span>{ <span class="tok-number">2</span>, <span class="tok-number">2</span>, <span class="tok-number">2</span>, <span class="tok-number">2</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span> };</span> <span class="line" id="L408"> <span class="tok-kw">var</span> got: <span class="tok-type">i32</span> = e.matchLen(<span class="tok-number">0</span>, -<span class="tok-number">1</span>, &current);</span> <span class="line" id="L409"> <span class="tok-kw">try</span> expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, <span class="tok-number">4</span>), got);</span> <span class="line" id="L410"> }</span> <span class="line" id="L411"> {</span> <span class="line" id="L412"> <span class="tok-kw">var</span> previous = [_]<span class="tok-type">u8</span>{ <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">2</span>, <span class="tok-number">2</span> };</span> <span class="line" id="L413"> <span class="tok-kw">var</span> e = DeflateFast{</span> <span class="line" id="L414"> .prev = &previous,</span> <span class="line" id="L415"> .prev_len = previous.len,</span> <span class="line" id="L416"> .table = <span class="tok-null">undefined</span>,</span> <span class="line" id="L417"> .allocator = <span class="tok-null">undefined</span>,</span> <span class="line" id="L418"> .cur = <span class="tok-number">0</span>,</span> <span class="line" id="L419"> };</span> <span class="line" id="L420"> <span class="tok-kw">var</span> current = [_]<span class="tok-type">u8</span>{ <span class="tok-number">2</span>, <span class="tok-number">2</span>, <span class="tok-number">2</span>, <span class="tok-number">2</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span> };</span> <span class="line" id="L421"> <span class="tok-kw">var</span> got: <span class="tok-type">i32</span> = e.matchLen(<span class="tok-number">4</span>, -<span class="tok-number">7</span>, &current);</span> <span class="line" id="L422"> <span class="tok-kw">try</span> expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, <span class="tok-number">5</span>), got);</span> <span class="line" id="L423"> }</span> <span class="line" id="L424"> {</span> <span class="line" id="L425"> <span class="tok-kw">var</span> previous = [_]<span class="tok-type">u8</span>{ <span class="tok-number">9</span>, <span class="tok-number">9</span>, <span class="tok-number">9</span>, <span class="tok-number">9</span>, <span class="tok-number">9</span> };</span> <span class="line" id="L426"> <span class="tok-kw">var</span> e = DeflateFast{</span> <span class="line" id="L427"> .prev = &previous,</span> <span class="line" id="L428"> .prev_len = previous.len,</span> <span class="line" id="L429"> .table = <span class="tok-null">undefined</span>,</span> <span class="line" id="L430"> .allocator = <span class="tok-null">undefined</span>,</span> <span class="line" id="L431"> .cur = <span class="tok-number">0</span>,</span> <span class="line" id="L432"> };</span> <span class="line" id="L433"> <span class="tok-kw">var</span> current = [_]<span class="tok-type">u8</span>{ <span class="tok-number">2</span>, <span class="tok-number">2</span>, <span class="tok-number">2</span>, <span class="tok-number">2</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span> };</span> <span class="line" id="L434"> <span class="tok-kw">var</span> got: <span class="tok-type">i32</span> = e.matchLen(<span class="tok-number">0</span>, -<span class="tok-number">1</span>, &current);</span> <span class="line" id="L435"> <span class="tok-kw">try</span> expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, <span class="tok-number">0</span>), got);</span> <span class="line" id="L436"> }</span> <span class="line" id="L437"> {</span> <span class="line" id="L438"> <span class="tok-kw">var</span> previous = [_]<span class="tok-type">u8</span>{ <span class="tok-number">9</span>, <span class="tok-number">9</span>, <span class="tok-number">9</span>, <span class="tok-number">9</span>, <span class="tok-number">9</span> };</span> <span class="line" id="L439"> <span class="tok-kw">var</span> e = DeflateFast{</span> <span class="line" id="L440"> .prev = &previous,</span> <span class="line" id="L441"> .prev_len = previous.len,</span> <span class="line" id="L442"> .table = <span class="tok-null">undefined</span>,</span> <span class="line" id="L443"> .allocator = <span class="tok-null">undefined</span>,</span> <span class="line" id="L444"> .cur = <span class="tok-number">0</span>,</span> <span class="line" id="L445"> };</span> <span class="line" id="L446"> <span class="tok-kw">var</span> current = [_]<span class="tok-type">u8</span>{ <span class="tok-number">9</span>, <span class="tok-number">2</span>, <span class="tok-number">2</span>, <span class="tok-number">2</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span> };</span> <span class="line" id="L447"> <span class="tok-kw">var</span> got: <span class="tok-type">i32</span> = e.matchLen(<span class="tok-number">1</span>, <span class="tok-number">0</span>, &current);</span> <span class="line" id="L448"> <span class="tok-kw">try</span> expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, <span class="tok-number">0</span>), got);</span> <span class="line" id="L449"> }</span> <span class="line" id="L450">}</span> <span class="line" id="L451"></span> <span class="line" id="L452"><span class="tok-kw">test</span> <span class="tok-str">"best speed match 2/3"</span> {</span> <span class="line" id="L453"> <span class="tok-kw">const</span> expectEqual = std.testing.expectEqual;</span> <span class="line" id="L454"></span> <span class="line" id="L455"> {</span> <span class="line" id="L456"> <span class="tok-kw">var</span> previous = [_]<span class="tok-type">u8</span>{};</span> <span class="line" id="L457"> <span class="tok-kw">var</span> e = DeflateFast{</span> <span class="line" id="L458"> .prev = &previous,</span> <span class="line" id="L459"> .prev_len = previous.len,</span> <span class="line" id="L460"> .table = <span class="tok-null">undefined</span>,</span> <span class="line" id="L461"> .allocator = <span class="tok-null">undefined</span>,</span> <span class="line" id="L462"> .cur = <span class="tok-number">0</span>,</span> <span class="line" id="L463"> };</span> <span class="line" id="L464"> <span class="tok-kw">var</span> current = [_]<span class="tok-type">u8</span>{ <span class="tok-number">9</span>, <span class="tok-number">2</span>, <span class="tok-number">2</span>, <span class="tok-number">2</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span> };</span> <span class="line" id="L465"> <span class="tok-kw">var</span> got: <span class="tok-type">i32</span> = e.matchLen(<span class="tok-number">1</span>, -<span class="tok-number">5</span>, &current);</span> <span class="line" id="L466"> <span class="tok-kw">try</span> expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, <span class="tok-number">0</span>), got);</span> <span class="line" id="L467"> }</span> <span class="line" id="L468"> {</span> <span class="line" id="L469"> <span class="tok-kw">var</span> previous = [_]<span class="tok-type">u8</span>{};</span> <span class="line" id="L470"> <span class="tok-kw">var</span> e = DeflateFast{</span> <span class="line" id="L471"> .prev = &previous,</span> <span class="line" id="L472"> .prev_len = previous.len,</span> <span class="line" id="L473"> .table = <span class="tok-null">undefined</span>,</span> <span class="line" id="L474"> .allocator = <span class="tok-null">undefined</span>,</span> <span class="line" id="L475"> .cur = <span class="tok-number">0</span>,</span> <span class="line" id="L476"> };</span> <span class="line" id="L477"> <span class="tok-kw">var</span> current = [_]<span class="tok-type">u8</span>{ <span class="tok-number">9</span>, <span class="tok-number">2</span>, <span class="tok-number">2</span>, <span class="tok-number">2</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span> };</span> <span class="line" id="L478"> <span class="tok-kw">var</span> got: <span class="tok-type">i32</span> = e.matchLen(<span class="tok-number">1</span>, -<span class="tok-number">1</span>, &current);</span> <span class="line" id="L479"> <span class="tok-kw">try</span> expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, <span class="tok-number">0</span>), got);</span> <span class="line" id="L480"> }</span> <span class="line" id="L481"> {</span> <span class="line" id="L482"> <span class="tok-kw">var</span> previous = [_]<span class="tok-type">u8</span>{};</span> <span class="line" id="L483"> <span class="tok-kw">var</span> e = DeflateFast{</span> <span class="line" id="L484"> .prev = &previous,</span> <span class="line" id="L485"> .prev_len = previous.len,</span> <span class="line" id="L486"> .table = <span class="tok-null">undefined</span>,</span> <span class="line" id="L487"> .allocator = <span class="tok-null">undefined</span>,</span> <span class="line" id="L488"> .cur = <span class="tok-number">0</span>,</span> <span class="line" id="L489"> };</span> <span class="line" id="L490"> <span class="tok-kw">var</span> current = [_]<span class="tok-type">u8</span>{ <span class="tok-number">2</span>, <span class="tok-number">2</span>, <span class="tok-number">2</span>, <span class="tok-number">2</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span> };</span> <span class="line" id="L491"> <span class="tok-kw">var</span> got: <span class="tok-type">i32</span> = e.matchLen(<span class="tok-number">1</span>, <span class="tok-number">0</span>, &current);</span> <span class="line" id="L492"> <span class="tok-kw">try</span> expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, <span class="tok-number">3</span>), got);</span> <span class="line" id="L493"> }</span> <span class="line" id="L494"> {</span> <span class="line" id="L495"> <span class="tok-kw">var</span> previous = [_]<span class="tok-type">u8</span>{ <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span> };</span> <span class="line" id="L496"> <span class="tok-kw">var</span> e = DeflateFast{</span> <span class="line" id="L497"> .prev = &previous,</span> <span class="line" id="L498"> .prev_len = previous.len,</span> <span class="line" id="L499"> .table = <span class="tok-null">undefined</span>,</span> <span class="line" id="L500"> .allocator = <span class="tok-null">undefined</span>,</span> <span class="line" id="L501"> .cur = <span class="tok-number">0</span>,</span> <span class="line" id="L502"> };</span> <span class="line" id="L503"> <span class="tok-kw">var</span> current = [_]<span class="tok-type">u8</span>{ <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span> };</span> <span class="line" id="L504"> <span class="tok-kw">var</span> got: <span class="tok-type">i32</span> = e.matchLen(<span class="tok-number">0</span>, -<span class="tok-number">3</span>, &current);</span> <span class="line" id="L505"> <span class="tok-kw">try</span> expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, <span class="tok-number">3</span>), got);</span> <span class="line" id="L506"> }</span> <span class="line" id="L507">}</span> <span class="line" id="L508"></span> <span class="line" id="L509"><span class="tok-kw">test</span> <span class="tok-str">"best speed match 2/2"</span> {</span> <span class="line" id="L510"> <span class="tok-kw">const</span> testing = std.testing;</span> <span class="line" id="L511"> <span class="tok-kw">const</span> expectEqual = testing.expectEqual;</span> <span class="line" id="L512"></span> <span class="line" id="L513"> <span class="tok-kw">const</span> Case = <span class="tok-kw">struct</span> {</span> <span class="line" id="L514"> previous: <span class="tok-type">u32</span>,</span> <span class="line" id="L515"> current: <span class="tok-type">u32</span>,</span> <span class="line" id="L516"> s: <span class="tok-type">i32</span>,</span> <span class="line" id="L517"> t: <span class="tok-type">i32</span>,</span> <span class="line" id="L518"> expected: <span class="tok-type">i32</span>,</span> <span class="line" id="L519"> };</span> <span class="line" id="L520"></span> <span class="line" id="L521"> <span class="tok-kw">const</span> cases = [_]Case{</span> <span class="line" id="L522"> .{</span> <span class="line" id="L523"> .previous = <span class="tok-number">1000</span>,</span> <span class="line" id="L524"> .current = <span class="tok-number">1000</span>,</span> <span class="line" id="L525"> .s = <span class="tok-number">0</span>,</span> <span class="line" id="L526"> .t = -<span class="tok-number">1000</span>,</span> <span class="line" id="L527"> .expected = max_match_length - <span class="tok-number">4</span>,</span> <span class="line" id="L528"> },</span> <span class="line" id="L529"> .{</span> <span class="line" id="L530"> .previous = <span class="tok-number">200</span>,</span> <span class="line" id="L531"> .s = <span class="tok-number">0</span>,</span> <span class="line" id="L532"> .t = -<span class="tok-number">200</span>,</span> <span class="line" id="L533"> .current = <span class="tok-number">500</span>,</span> <span class="line" id="L534"> .expected = max_match_length - <span class="tok-number">4</span>,</span> <span class="line" id="L535"> },</span> <span class="line" id="L536"> .{</span> <span class="line" id="L537"> .previous = <span class="tok-number">200</span>,</span> <span class="line" id="L538"> .s = <span class="tok-number">1</span>,</span> <span class="line" id="L539"> .t = <span class="tok-number">0</span>,</span> <span class="line" id="L540"> .current = <span class="tok-number">500</span>,</span> <span class="line" id="L541"> .expected = max_match_length - <span class="tok-number">4</span>,</span> <span class="line" id="L542"> },</span> <span class="line" id="L543"> .{</span> <span class="line" id="L544"> .previous = max_match_length - <span class="tok-number">4</span>,</span> <span class="line" id="L545"> .s = <span class="tok-number">0</span>,</span> <span class="line" id="L546"> .t = -(max_match_length - <span class="tok-number">4</span>),</span> <span class="line" id="L547"> .current = <span class="tok-number">500</span>,</span> <span class="line" id="L548"> .expected = max_match_length - <span class="tok-number">4</span>,</span> <span class="line" id="L549"> },</span> <span class="line" id="L550"> .{</span> <span class="line" id="L551"> .previous = <span class="tok-number">200</span>,</span> <span class="line" id="L552"> .s = <span class="tok-number">400</span>,</span> <span class="line" id="L553"> .t = -<span class="tok-number">200</span>,</span> <span class="line" id="L554"> .current = <span class="tok-number">500</span>,</span> <span class="line" id="L555"> .expected = <span class="tok-number">100</span>,</span> <span class="line" id="L556"> },</span> <span class="line" id="L557"> .{</span> <span class="line" id="L558"> .previous = <span class="tok-number">10</span>,</span> <span class="line" id="L559"> .s = <span class="tok-number">400</span>,</span> <span class="line" id="L560"> .t = <span class="tok-number">200</span>,</span> <span class="line" id="L561"> .current = <span class="tok-number">500</span>,</span> <span class="line" id="L562"> .expected = <span class="tok-number">100</span>,</span> <span class="line" id="L563"> },</span> <span class="line" id="L564"> };</span> <span class="line" id="L565"></span> <span class="line" id="L566"> <span class="tok-kw">for</span> (cases) \|c\| {</span> <span class="line" id="L567"> <span class="tok-kw">var</span> previous = <span class="tok-kw">try</span> testing.allocator.alloc(<span class="tok-type">u8</span>, c.previous);</span> <span class="line" id="L568"> <span class="tok-kw">defer</span> testing.allocator.free(previous);</span> <span class="line" id="L569"> <span class="tok-builtin">@memset</span>(previous, <span class="tok-number">0</span>);</span> <span class="line" id="L570"></span> <span class="line" id="L571"> <span class="tok-kw">var</span> current = <span class="tok-kw">try</span> testing.allocator.alloc(<span class="tok-type">u8</span>, c.current);</span> <span class="line" id="L572"> <span class="tok-kw">defer</span> testing.allocator.free(current);</span> <span class="line" id="L573"> <span class="tok-builtin">@memset</span>(current, <span class="tok-number">0</span>);</span> <span class="line" id="L574"></span> <span class="line" id="L575"> <span class="tok-kw">var</span> e = DeflateFast{</span> <span class="line" id="L576"> .prev = previous,</span> <span class="line" id="L577"> .prev_len = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(previous.len)),</span> <span class="line" id="L578"> .table = <span class="tok-null">undefined</span>,</span> <span class="line" id="L579"> .allocator = <span class="tok-null">undefined</span>,</span> <span class="line" id="L580"> .cur = <span class="tok-number">0</span>,</span> <span class="line" id="L581"> };</span> <span class="line" id="L582"> <span class="tok-kw">var</span> got: <span class="tok-type">i32</span> = e.matchLen(c.s, c.t, current);</span> <span class="line" id="L583"> <span class="tok-kw">try</span> expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, c.expected), got);</span> <span class="line" id="L584"> }</span> <span class="line" id="L585">}</span> <span class="line" id="L586"></span> <span class="line" id="L587"><span class="tok-kw">test</span> <span class="tok-str">"best speed shift offsets"</span> {</span> <span class="line" id="L588"> <span class="tok-kw">const</span> testing = std.testing;</span> <span class="line" id="L589"> <span class="tok-kw">const</span> expect = std.testing.expect;</span> <span class="line" id="L590"></span> <span class="line" id="L591"> <span class="tok-comment">// Test if shiftoffsets properly preserves matches and resets out-of-range matches</span> </span> <span class="line" id="L592"> <span class="tok-comment">// seen in https://github.com/golang/go/issues/4142</span> </span> <span class="line" id="L593"> <span class="tok-kw">var</span> enc = deflateFast();</span> <span class="line" id="L594"> <span class="tok-kw">try</span> enc.init(testing.allocator);</span> <span class="line" id="L595"> <span class="tok-kw">defer</span> enc.deinit();</span> <span class="line" id="L596"></span> <span class="line" id="L597"> <span class="tok-comment">// test_data may not generate internal matches.</span> </span> <span class="line" id="L598"> <span class="tok-kw">var</span> test_data = [<span class="tok-number">32</span>]<span class="tok-type">u8</span>{</span> <span class="line" id="L599"> <span class="tok-number">0xf5</span>, <span class="tok-number">0x25</span>, <span class="tok-number">0xf2</span>, <span class="tok-number">0x55</span>, <span class="tok-number">0xf6</span>, <span class="tok-number">0xc1</span>, <span class="tok-number">0x1f</span>, <span class="tok-number">0x0b</span>, <span class="tok-number">0x10</span>, <span class="tok-number">0xa1</span>,</span> <span class="line" id="L600"> <span class="tok-number">0xd0</span>, <span class="tok-number">0x77</span>, <span class="tok-number">0x56</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0xf1</span>, <span class="tok-number">0x9c</span>, <span class="tok-number">0x7f</span>, <span class="tok-number">0x85</span>, <span class="tok-number">0xc5</span>, <span class="tok-number">0xbd</span>,</span> <span class="line" id="L601"> <span class="tok-number">0x16</span>, <span class="tok-number">0x28</span>, <span class="tok-number">0xd4</span>, <span class="tok-number">0xf9</span>, <span class="tok-number">0x03</span>, <span class="tok-number">0xd4</span>, <span class="tok-number">0xc0</span>, <span class="tok-number">0xa1</span>, <span class="tok-number">0x1e</span>, <span class="tok-number">0x58</span>,</span> <span class="line" id="L602"> <span class="tok-number">0x5b</span>, <span class="tok-number">0xc9</span>,</span> <span class="line" id="L603"> };</span> <span class="line" id="L604"></span> <span class="line" id="L605"> <span class="tok-kw">var</span> tokens = [_]token.Token{<span class="tok-number">0</span>} * <span class="tok-number">32</span>;</span> <span class="line" id="L606"> <span class="tok-kw">var</span> tokens_count: <span class="tok-type">u16</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L607"></span> <span class="line" id="L608"> <span class="tok-comment">// Encode the testdata with clean state.</span> </span> <span class="line" id="L609"> <span class="tok-comment">// Second part should pick up matches from the first block.</span> </span> <span class="line" id="L610"> tokens_count = <span class="tok-number">0</span>;</span> <span class="line" id="L611"> enc.encode(&tokens, &tokens_count, &test_data);</span> <span class="line" id="L612"> <span class="tok-kw">var</span> want_first_tokens = tokens_count;</span> <span class="line" id="L613"> tokens_count = <span class="tok-number">0</span>;</span> <span class="line" id="L614"> enc.encode(&tokens, &tokens_count, &test_data);</span> <span class="line" id="L615"> <span class="tok-kw">var</span> want_second_tokens = tokens_count;</span> <span class="line" id="L616"></span> <span class="line" id="L617"> <span class="tok-kw">try</span> expect(want_first_tokens > want_second_tokens);</span> <span class="line" id="L618"></span> <span class="line" id="L619"> <span class="tok-comment">// Forward the current indicator to before wraparound.</span> </span> <span class="line" id="L620"> enc.cur = buffer_reset - <span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, <span class="tok-builtin">@intCast</span>(test_data.len));</span> <span class="line" id="L621"></span> <span class="line" id="L622"> <span class="tok-comment">// Part 1 before wrap, should match clean state.</span> </span> <span class="line" id="L623"> tokens_count = <span class="tok-number">0</span>;</span> <span class="line" id="L624"> enc.encode(&tokens, &tokens_count, &test_data);</span> <span class="line" id="L625"> <span class="tok-kw">var</span> got = tokens_count;</span> <span class="line" id="L626"> <span class="tok-kw">try</span> testing.expectEqual(want_first_tokens, got);</span> <span class="line" id="L627"></span> <span class="line" id="L628"> <span class="tok-comment">// Verify we are about to wrap.</span> </span> <span class="line" id="L629"> <span class="tok-kw">try</span> testing.expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, buffer_reset), enc.cur);</span> <span class="line" id="L630"></span> <span class="line" id="L631"> <span class="tok-comment">// Part 2 should match clean state as well even if wrapped.</span> </span> <span class="line" id="L632"> tokens_count = <span class="tok-number">0</span>;</span> <span class="line" id="L633"> enc.encode(&tokens, &tokens_count, &test_data);</span> <span class="line" id="L634"> got = tokens_count;</span> <span class="line" id="L635"> <span class="tok-kw">try</span> testing.expectEqual(want_second_tokens, got);</span> <span class="line" id="L636"></span> <span class="line" id="L637"> <span class="tok-comment">// Verify that we wrapped.</span> </span> <span class="line" id="L638"> <span class="tok-kw">try</span> expect(enc.cur < buffer_reset);</span> <span class="line" id="L639"></span> <span class="line" id="L640"> <span class="tok-comment">// Forward the current buffer, leaving the matches at the bottom.</span> </span> <span class="line" id="L641"> enc.cur = buffer_reset;</span> <span class="line" id="L642"> enc.shiftOffsets();</span> <span class="line" id="L643"></span> <span class="line" id="L644"> <span class="tok-comment">// Ensure that no matches were picked up.</span> </span> <span class="line" id="L645"> tokens_count = <span class="tok-number">0</span>;</span> <span class="line" id="L646"> enc.encode(&tokens, &tokens_count, &test_data);</span> <span class="line" id="L647"> got = tokens_count;</span> <span class="line" id="L648"> <span class="tok-kw">try</span> testing.expectEqual(want_first_tokens, got);</span> <span class="line" id="L649">}</span> <span class="line" id="L650"></span> <span class="line" id="L651"><span class="tok-kw">test</span> <span class="tok-str">"best speed reset"</span> {</span> <span class="line" id="L652"> <span class="tok-comment">// test that encoding is consistent across a warparound of the table offset.</span> </span> <span class="line" id="L653"> <span class="tok-comment">// See https://github.com/golang/go/issues/34121</span> </span> <span class="line" id="L654"> <span class="tok-kw">const</span> fmt = std.fmt;</span> <span class="line" id="L655"> <span class="tok-kw">const</span> testing = std.testing;</span> <span class="line" id="L656"></span> <span class="line" id="L657"> <span class="tok-kw">const</span> ArrayList = std.ArrayList;</span> <span class="line" id="L658"></span> <span class="line" id="L659"> <span class="tok-kw">const</span> input_size = <span class="tok-number">65536</span>;</span> <span class="line" id="L660"> <span class="tok-kw">var</span> input = <span class="tok-kw">try</span> testing.allocator.alloc(<span class="tok-type">u8</span>, input_size);</span> <span class="line" id="L661"> <span class="tok-kw">defer</span> testing.allocator.free(input);</span> <span class="line" id="L662"></span> <span class="line" id="L663"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L664"> <span class="tok-kw">while</span> (i < input_size) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L665"> _ = <span class="tok-kw">try</span> fmt.bufPrint(input, <span class="tok-str">"asdfasdfasdfasdf{d}{d}fghfgujyut{d}yutyu\n"</span>, .{ i, i, i });</span> <span class="line" id="L666"> }</span> <span class="line" id="L667"> <span class="tok-comment">// This is specific to level 1 (best_speed).</span> </span> <span class="line" id="L668"> <span class="tok-kw">const</span> level = .best_speed;</span> <span class="line" id="L669"> <span class="tok-kw">const</span> offset: <span class="tok-type">usize</span> = <span class="tok-number">1</span>;</span> <span class="line" id="L670"></span> <span class="line" id="L671"> <span class="tok-comment">// We do an encode with a clean buffer to compare.</span> </span> <span class="line" id="L672"> <span class="tok-kw">var</span> want = ArrayList(<span class="tok-type">u8</span>).init(testing.allocator);</span> <span class="line" id="L673"> <span class="tok-kw">defer</span> want.deinit();</span> <span class="line" id="L674"> <span class="tok-kw">var</span> clean_comp = <span class="tok-kw">try</span> deflate.compressor(</span> <span class="line" id="L675"> testing.allocator,</span> <span class="line" id="L676"> want.writer(),</span> <span class="line" id="L677"> .{ .level = level },</span> <span class="line" id="L678"> );</span> <span class="line" id="L679"> <span class="tok-kw">defer</span> clean_comp.deinit();</span> <span class="line" id="L680"></span> <span class="line" id="L681"> <span class="tok-comment">// Write 3 times, close.</span> </span> <span class="line" id="L682"> <span class="tok-kw">try</span> clean_comp.writer().writeAll(input);</span> <span class="line" id="L683"> <span class="tok-kw">try</span> clean_comp.writer().writeAll(input);</span> <span class="line" id="L684"> <span class="tok-kw">try</span> clean_comp.writer().writeAll(input);</span> <span class="line" id="L685"> <span class="tok-kw">try</span> clean_comp.close();</span> <span class="line" id="L686"></span> <span class="line" id="L687"> <span class="tok-kw">var</span> o = offset;</span> <span class="line" id="L688"> <span class="tok-kw">while</span> (o <= <span class="tok-number">256</span>) : (o *= <span class="tok-number">2</span>) {</span> <span class="line" id="L689"> <span class="tok-kw">var</span> discard = ArrayList(<span class="tok-type">u8</span>).init(testing.allocator);</span> <span class="line" id="L690"> <span class="tok-kw">defer</span> discard.deinit();</span> <span class="line" id="L691"></span> <span class="line" id="L692"> <span class="tok-kw">var</span> comp = <span class="tok-kw">try</span> deflate.compressor(</span> <span class="line" id="L693"> testing.allocator,</span> <span class="line" id="L694"> discard.writer(),</span> <span class="line" id="L695"> .{ .level = level },</span> <span class="line" id="L696"> );</span> <span class="line" id="L697"> <span class="tok-kw">defer</span> comp.deinit();</span> <span class="line" id="L698"></span> <span class="line" id="L699"> <span class="tok-comment">// Reset until we are right before the wraparound.</span> </span> <span class="line" id="L700"> <span class="tok-comment">// Each reset adds max_match_offset to the offset.</span> </span> <span class="line" id="L701"> i = <span class="tok-number">0</span>;</span> <span class="line" id="L702"> <span class="tok-kw">var</span> limit = (buffer_reset - input.len - o - max_match_offset) / max_match_offset;</span> <span class="line" id="L703"> <span class="tok-kw">while</span> (i < limit) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L704"> <span class="tok-comment">// skip ahead to where we are close to wrap around...</span> </span> <span class="line" id="L705"> comp.reset(discard.writer());</span> <span class="line" id="L706"> }</span> <span class="line" id="L707"> <span class="tok-kw">var</span> got = ArrayList(<span class="tok-type">u8</span>).init(testing.allocator);</span> <span class="line" id="L708"> <span class="tok-kw">defer</span> got.deinit();</span> <span class="line" id="L709"> comp.reset(got.writer());</span> <span class="line" id="L710"></span> <span class="line" id="L711"> <span class="tok-comment">// Write 3 times, close.</span> </span> <span class="line" id="L712"> <span class="tok-kw">try</span> comp.writer().writeAll(input);</span> <span class="line" id="L713"> <span class="tok-kw">try</span> comp.writer().writeAll(input);</span> <span class="line" id="L714"> <span class="tok-kw">try</span> comp.writer().writeAll(input);</span> <span class="line" id="L715"> <span class="tok-kw">try</span> comp.close();</span> <span class="line" id="L716"></span> <span class="line" id="L717"> <span class="tok-comment">// output must match at wraparound</span> </span> <span class="line" id="L718"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, want.items, got.items);</span> <span class="line" id="L719"> }</span> <span class="line" id="L720">}</span> <span class="line" id="L721"></span> </code></pre></body> </html>
repos/yazap/docs/src/std/compress	repos/yazap/docs/src/std/compress/deflate/huffman_code.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>compress/deflate/huffman_code.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> assert = std.debug.assert;</span> <span class="line" id="L3"><span class="tok-kw">const</span> math = std.math;</span> <span class="line" id="L4"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L5"><span class="tok-kw">const</span> sort = std.sort;</span> <span class="line" id="L6"><span class="tok-kw">const</span> testing = std.testing;</span> <span class="line" id="L7"></span> <span class="line" id="L8"><span class="tok-kw">const</span> Allocator = std.mem.Allocator;</span> <span class="line" id="L9"></span> <span class="line" id="L10"><span class="tok-kw">const</span> bu = <span class="tok-builtin">@import</span>(<span class="tok-str">"bits_utils.zig"</span>);</span> <span class="line" id="L11"><span class="tok-kw">const</span> deflate_const = <span class="tok-builtin">@import</span>(<span class="tok-str">"deflate_const.zig"</span>);</span> <span class="line" id="L12"></span> <span class="line" id="L13"><span class="tok-kw">const</span> max_bits_limit = <span class="tok-number">16</span>;</span> <span class="line" id="L14"></span> <span class="line" id="L15"><span class="tok-kw">const</span> LiteralNode = <span class="tok-kw">struct</span> {</span> <span class="line" id="L16"> literal: <span class="tok-type">u16</span>,</span> <span class="line" id="L17"> freq: <span class="tok-type">u16</span>,</span> <span class="line" id="L18">};</span> <span class="line" id="L19"></span> <span class="line" id="L20"><span class="tok-comment">// Describes the state of the constructed tree for a given depth.</span> </span> <span class="line" id="L21"><span class="tok-kw">const</span> LevelInfo = <span class="tok-kw">struct</span> {</span> <span class="line" id="L22"> <span class="tok-comment">// Our level. for better printing</span> </span> <span class="line" id="L23"> level: <span class="tok-type">u32</span>,</span> <span class="line" id="L24"></span> <span class="line" id="L25"> <span class="tok-comment">// The frequency of the last node at this level</span> </span> <span class="line" id="L26"> last_freq: <span class="tok-type">u32</span>,</span> <span class="line" id="L27"></span> <span class="line" id="L28"> <span class="tok-comment">// The frequency of the next character to add to this level</span> </span> <span class="line" id="L29"> next_char_freq: <span class="tok-type">u32</span>,</span> <span class="line" id="L30"></span> <span class="line" id="L31"> <span class="tok-comment">// The frequency of the next pair (from level below) to add to this level.</span> </span> <span class="line" id="L32"> <span class="tok-comment">// Only valid if the "needed" value of the next lower level is 0.</span> </span> <span class="line" id="L33"> next_pair_freq: <span class="tok-type">u32</span>,</span> <span class="line" id="L34"></span> <span class="line" id="L35"> <span class="tok-comment">// The number of chains remaining to generate for this level before moving</span> </span> <span class="line" id="L36"> <span class="tok-comment">// up to the next level</span> </span> <span class="line" id="L37"> needed: <span class="tok-type">u32</span>,</span> <span class="line" id="L38">};</span> <span class="line" id="L39"></span> <span class="line" id="L40"><span class="tok-comment">// hcode is a huffman code with a bit code and bit length.</span> </span> <span class="line" id="L41"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> HuffCode = <span class="tok-kw">struct</span> {</span> <span class="line" id="L42"> code: <span class="tok-type">u16</span> = <span class="tok-number">0</span>,</span> <span class="line" id="L43"> len: <span class="tok-type">u16</span> = <span class="tok-number">0</span>,</span> <span class="line" id="L44"></span> <span class="line" id="L45"> <span class="tok-comment">// set sets the code and length of an hcode.</span> </span> <span class="line" id="L46"> <span class="tok-kw">fn</span> <span class="tok-fn">set</span>(self: HuffCode, code: <span class="tok-type">u16</span>, length: <span class="tok-type">u16</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L47"> self.len = length;</span> <span class="line" id="L48"> self.code = code;</span> <span class="line" id="L49"> }</span> <span class="line" id="L50">};</span> <span class="line" id="L51"></span> <span class="line" id="L52"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> HuffmanEncoder = <span class="tok-kw">struct</span> {</span> <span class="line" id="L53"> codes: []HuffCode,</span> <span class="line" id="L54"> freq_cache: []LiteralNode = <span class="tok-null">undefined</span>,</span> <span class="line" id="L55"> bit_count: [<span class="tok-number">17</span>]<span class="tok-type">u32</span> = <span class="tok-null">undefined</span>,</span> <span class="line" id="L56"> lns: []LiteralNode = <span class="tok-null">undefined</span>, <span class="tok-comment">// sorted by literal, stored to avoid repeated allocation in generate</span> </span> <span class="line" id="L57"> lfs: []LiteralNode = <span class="tok-null">undefined</span>, <span class="tok-comment">// sorted by frequency, stored to avoid repeated allocation in generate</span> </span> <span class="line" id="L58"> allocator: Allocator,</span> <span class="line" id="L59"></span> <span class="line" id="L60"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">deinit</span>(self: HuffmanEncoder) <span class="tok-type">void</span> {</span> <span class="line" id="L61"> self.allocator.free(self.codes);</span> <span class="line" id="L62"> self.allocator.free(self.freq_cache);</span> <span class="line" id="L63"> }</span> <span class="line" id="L64"></span> <span class="line" id="L65"> <span class="tok-comment">// Update this Huffman Code object to be the minimum code for the specified frequency count.</span> </span> <span class="line" id="L66"> <span class="tok-comment">//</span> </span> <span class="line" id="L67"> <span class="tok-comment">// freq An array of frequencies, in which frequency[i] gives the frequency of literal i.</span> </span> <span class="line" id="L68"> <span class="tok-comment">// max_bits The maximum number of bits to use for any literal.</span> </span> <span class="line" id="L69"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">generate</span>(self: HuffmanEncoder, freq: []<span class="tok-type">u16</span>, max_bits: <span class="tok-type">u32</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L70"> <span class="tok-kw">var</span> list = self.freq_cache[<span class="tok-number">0</span> .. freq.len + <span class="tok-number">1</span>];</span> <span class="line" id="L71"> <span class="tok-comment">// Number of non-zero literals</span> </span> <span class="line" id="L72"> <span class="tok-kw">var</span> count: <span class="tok-type">u32</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L73"> <span class="tok-comment">// Set list to be the set of all non-zero literals and their frequencies</span> </span> <span class="line" id="L74"> <span class="tok-kw">for</span> (freq, <span class="tok-number">0</span>..) \|f, i\| {</span> <span class="line" id="L75"> <span class="tok-kw">if</span> (f != <span class="tok-number">0</span>) {</span> <span class="line" id="L76"> list[count] = LiteralNode{ .literal = <span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, <span class="tok-builtin">@intCast</span>(i)), .freq = f };</span> <span class="line" id="L77"> count += <span class="tok-number">1</span>;</span> <span class="line" id="L78"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L79"> list[count] = LiteralNode{ .literal = <span class="tok-number">0x00</span>, .freq = <span class="tok-number">0</span> };</span> <span class="line" id="L80"> self.codes[i].len = <span class="tok-number">0</span>;</span> <span class="line" id="L81"> }</span> <span class="line" id="L82"> }</span> <span class="line" id="L83"> list[freq.len] = LiteralNode{ .literal = <span class="tok-number">0x00</span>, .freq = <span class="tok-number">0</span> };</span> <span class="line" id="L84"></span> <span class="line" id="L85"> list = list[<span class="tok-number">0</span>..count];</span> <span class="line" id="L86"> <span class="tok-kw">if</span> (count <= <span class="tok-number">2</span>) {</span> <span class="line" id="L87"> <span class="tok-comment">// Handle the small cases here, because they are awkward for the general case code. With</span> </span> <span class="line" id="L88"> <span class="tok-comment">// two or fewer literals, everything has bit length 1.</span> </span> <span class="line" id="L89"> <span class="tok-kw">for</span> (list, <span class="tok-number">0</span>..) \|node, i\| {</span> <span class="line" id="L90"> <span class="tok-comment">// "list" is in order of increasing literal value.</span> </span> <span class="line" id="L91"> self.codes[node.literal].set(<span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, <span class="tok-builtin">@intCast</span>(i)), <span class="tok-number">1</span>);</span> <span class="line" id="L92"> }</span> <span class="line" id="L93"> <span class="tok-kw">return</span>;</span> <span class="line" id="L94"> }</span> <span class="line" id="L95"> self.lfs = list;</span> <span class="line" id="L96"> mem.sort(LiteralNode, self.lfs, {}, byFreq);</span> <span class="line" id="L97"></span> <span class="line" id="L98"> <span class="tok-comment">// Get the number of literals for each bit count</span> </span> <span class="line" id="L99"> <span class="tok-kw">var</span> bit_count = self.bitCounts(list, max_bits);</span> <span class="line" id="L100"> <span class="tok-comment">// And do the assignment</span> </span> <span class="line" id="L101"> self.assignEncodingAndSize(bit_count, list);</span> <span class="line" id="L102"> }</span> <span class="line" id="L103"></span> <span class="line" id="L104"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">bitLength</span>(self: HuffmanEncoder, freq: []<span class="tok-type">u16</span>) <span class="tok-type">u32</span> {</span> <span class="line" id="L105"> <span class="tok-kw">var</span> total: <span class="tok-type">u32</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L106"> <span class="tok-kw">for</span> (freq, <span class="tok-number">0</span>..) \|f, i\| {</span> <span class="line" id="L107"> <span class="tok-kw">if</span> (f != <span class="tok-number">0</span>) {</span> <span class="line" id="L108"> total += <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(f)) * <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(self.codes[i].len));</span> <span class="line" id="L109"> }</span> <span class="line" id="L110"> }</span> <span class="line" id="L111"> <span class="tok-kw">return</span> total;</span> <span class="line" id="L112"> }</span> <span class="line" id="L113"></span> <span class="line" id="L114"> <span class="tok-comment">// Return the number of literals assigned to each bit size in the Huffman encoding</span> </span> <span class="line" id="L115"> <span class="tok-comment">//</span> </span> <span class="line" id="L116"> <span class="tok-comment">// This method is only called when list.len >= 3</span> </span> <span class="line" id="L117"> <span class="tok-comment">// The cases of 0, 1, and 2 literals are handled by special case code.</span> </span> <span class="line" id="L118"> <span class="tok-comment">//</span> </span> <span class="line" id="L119"> <span class="tok-comment">// list: An array of the literals with non-zero frequencies</span> </span> <span class="line" id="L120"> <span class="tok-comment">// and their associated frequencies. The array is in order of increasing</span> </span> <span class="line" id="L121"> <span class="tok-comment">// frequency, and has as its last element a special element with frequency</span> </span> <span class="line" id="L122"> <span class="tok-comment">// std.math.maxInt(i32)</span> </span> <span class="line" id="L123"> <span class="tok-comment">//</span> </span> <span class="line" id="L124"> <span class="tok-comment">// max_bits: The maximum number of bits that should be used to encode any literal.</span> </span> <span class="line" id="L125"> <span class="tok-comment">// Must be less than 16.</span> </span> <span class="line" id="L126"> <span class="tok-comment">//</span> </span> <span class="line" id="L127"> <span class="tok-comment">// Returns an integer array in which array[i] indicates the number of literals</span> </span> <span class="line" id="L128"> <span class="tok-comment">// that should be encoded in i bits.</span> </span> <span class="line" id="L129"> <span class="tok-kw">fn</span> <span class="tok-fn">bitCounts</span>(self: HuffmanEncoder, list: []LiteralNode, max_bits_to_use: <span class="tok-type">usize</span>) []<span class="tok-type">u32</span> {</span> <span class="line" id="L130"> <span class="tok-kw">var</span> max_bits = max_bits_to_use;</span> <span class="line" id="L131"> <span class="tok-kw">var</span> n = list.len;</span> <span class="line" id="L132"></span> <span class="line" id="L133"> assert(max_bits < max_bits_limit);</span> <span class="line" id="L134"></span> <span class="line" id="L135"> <span class="tok-comment">// The tree can't have greater depth than n - 1, no matter what. This</span> </span> <span class="line" id="L136"> <span class="tok-comment">// saves a little bit of work in some small cases</span> </span> <span class="line" id="L137"> max_bits = <span class="tok-builtin">@min</span>(max_bits, n - <span class="tok-number">1</span>);</span> <span class="line" id="L138"></span> <span class="line" id="L139"> <span class="tok-comment">// Create information about each of the levels.</span> </span> <span class="line" id="L140"> <span class="tok-comment">// A bogus "Level 0" whose sole purpose is so that</span> </span> <span class="line" id="L141"> <span class="tok-comment">// level1.prev.needed == 0. This makes level1.next_pair_freq</span> </span> <span class="line" id="L142"> <span class="tok-comment">// be a legitimate value that never gets chosen.</span> </span> <span class="line" id="L143"> <span class="tok-kw">var</span> levels: [max_bits_limit]LevelInfo = mem.zeroes([max_bits_limit]LevelInfo);</span> <span class="line" id="L144"> <span class="tok-comment">// leaf_counts[i] counts the number of literals at the left</span> </span> <span class="line" id="L145"> <span class="tok-comment">// of ancestors of the rightmost node at level i.</span> </span> <span class="line" id="L146"> <span class="tok-comment">// leaf_counts[i][j] is the number of literals at the left</span> </span> <span class="line" id="L147"> <span class="tok-comment">// of the level j ancestor.</span> </span> <span class="line" id="L148"> <span class="tok-kw">var</span> leaf_counts: [max_bits_limit][max_bits_limit]<span class="tok-type">u32</span> = mem.zeroes([max_bits_limit][max_bits_limit]<span class="tok-type">u32</span>);</span> <span class="line" id="L149"></span> <span class="line" id="L150"> {</span> <span class="line" id="L151"> <span class="tok-kw">var</span> level = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-number">1</span>);</span> <span class="line" id="L152"> <span class="tok-kw">while</span> (level <= max_bits) : (level += <span class="tok-number">1</span>) {</span> <span class="line" id="L153"> <span class="tok-comment">// For every level, the first two items are the first two characters.</span> </span> <span class="line" id="L154"> <span class="tok-comment">// We initialize the levels as if we had already figured this out.</span> </span> <span class="line" id="L155"> levels[level] = LevelInfo{</span> <span class="line" id="L156"> .level = level,</span> <span class="line" id="L157"> .last_freq = list[<span class="tok-number">1</span>].freq,</span> <span class="line" id="L158"> .next_char_freq = list[<span class="tok-number">2</span>].freq,</span> <span class="line" id="L159"> .next_pair_freq = list[<span class="tok-number">0</span>].freq + list[<span class="tok-number">1</span>].freq,</span> <span class="line" id="L160"> .needed = <span class="tok-number">0</span>,</span> <span class="line" id="L161"> };</span> <span class="line" id="L162"> leaf_counts[level][level] = <span class="tok-number">2</span>;</span> <span class="line" id="L163"> <span class="tok-kw">if</span> (level == <span class="tok-number">1</span>) {</span> <span class="line" id="L164"> levels[level].next_pair_freq = math.maxInt(<span class="tok-type">i32</span>);</span> <span class="line" id="L165"> }</span> <span class="line" id="L166"> }</span> <span class="line" id="L167"> }</span> <span class="line" id="L168"></span> <span class="line" id="L169"> <span class="tok-comment">// We need a total of 2n - 2 items at top level and have already generated 2.</span> </span> <span class="line" id="L170"> levels[max_bits].needed = <span class="tok-number">2</span> * <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(n)) - <span class="tok-number">4</span>;</span> <span class="line" id="L171"></span> <span class="line" id="L172"> {</span> <span class="line" id="L173"> <span class="tok-kw">var</span> level = max_bits;</span> <span class="line" id="L174"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L175"> <span class="tok-kw">var</span> l = &levels[level];</span> <span class="line" id="L176"> <span class="tok-kw">if</span> (l.next_pair_freq == math.maxInt(<span class="tok-type">i32</span>) <span class="tok-kw">and</span> l.next_char_freq == math.maxInt(<span class="tok-type">i32</span>)) {</span> <span class="line" id="L177"> <span class="tok-comment">// We've run out of both leafs and pairs.</span> </span> <span class="line" id="L178"> <span class="tok-comment">// End all calculations for this level.</span> </span> <span class="line" id="L179"> <span class="tok-comment">// To make sure we never come back to this level or any lower level,</span> </span> <span class="line" id="L180"> <span class="tok-comment">// set next_pair_freq impossibly large.</span> </span> <span class="line" id="L181"> l.needed = <span class="tok-number">0</span>;</span> <span class="line" id="L182"> levels[level + <span class="tok-number">1</span>].next_pair_freq = math.maxInt(<span class="tok-type">i32</span>);</span> <span class="line" id="L183"> level += <span class="tok-number">1</span>;</span> <span class="line" id="L184"> <span class="tok-kw">continue</span>;</span> <span class="line" id="L185"> }</span> <span class="line" id="L186"></span> <span class="line" id="L187"> <span class="tok-kw">var</span> prev_freq = l.last_freq;</span> <span class="line" id="L188"> <span class="tok-kw">if</span> (l.next_char_freq < l.next_pair_freq) {</span> <span class="line" id="L189"> <span class="tok-comment">// The next item on this row is a leaf node.</span> </span> <span class="line" id="L190"> <span class="tok-kw">var</span> next = leaf_counts[level][level] + <span class="tok-number">1</span>;</span> <span class="line" id="L191"> l.last_freq = l.next_char_freq;</span> <span class="line" id="L192"> <span class="tok-comment">// Lower leaf_counts are the same of the previous node.</span> </span> <span class="line" id="L193"> leaf_counts[level][level] = next;</span> <span class="line" id="L194"> <span class="tok-kw">if</span> (next >= list.len) {</span> <span class="line" id="L195"> l.next_char_freq = maxNode().freq;</span> <span class="line" id="L196"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L197"> l.next_char_freq = list[next].freq;</span> <span class="line" id="L198"> }</span> <span class="line" id="L199"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L200"> <span class="tok-comment">// The next item on this row is a pair from the previous row.</span> </span> <span class="line" id="L201"> <span class="tok-comment">// next_pair_freq isn't valid until we generate two</span> </span> <span class="line" id="L202"> <span class="tok-comment">// more values in the level below</span> </span> <span class="line" id="L203"> l.last_freq = l.next_pair_freq;</span> <span class="line" id="L204"> <span class="tok-comment">// Take leaf counts from the lower level, except counts[level] remains the same.</span> </span> <span class="line" id="L205"> <span class="tok-builtin">@memcpy</span>(leaf_counts[level][<span class="tok-number">0</span>..level], leaf_counts[level - <span class="tok-number">1</span>][<span class="tok-number">0</span>..level]);</span> <span class="line" id="L206"> levels[l.level - <span class="tok-number">1</span>].needed = <span class="tok-number">2</span>;</span> <span class="line" id="L207"> }</span> <span class="line" id="L208"></span> <span class="line" id="L209"> l.needed -= <span class="tok-number">1</span>;</span> <span class="line" id="L210"> <span class="tok-kw">if</span> (l.needed == <span class="tok-number">0</span>) {</span> <span class="line" id="L211"> <span class="tok-comment">// We've done everything we need to do for this level.</span> </span> <span class="line" id="L212"> <span class="tok-comment">// Continue calculating one level up. Fill in next_pair_freq</span> </span> <span class="line" id="L213"> <span class="tok-comment">// of that level with the sum of the two nodes we've just calculated on</span> </span> <span class="line" id="L214"> <span class="tok-comment">// this level.</span> </span> <span class="line" id="L215"> <span class="tok-kw">if</span> (l.level == max_bits) {</span> <span class="line" id="L216"> <span class="tok-comment">// All done!</span> </span> <span class="line" id="L217"> <span class="tok-kw">break</span>;</span> <span class="line" id="L218"> }</span> <span class="line" id="L219"> levels[l.level + <span class="tok-number">1</span>].next_pair_freq = prev_freq + l.last_freq;</span> <span class="line" id="L220"> level += <span class="tok-number">1</span>;</span> <span class="line" id="L221"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L222"> <span class="tok-comment">// If we stole from below, move down temporarily to replenish it.</span> </span> <span class="line" id="L223"> <span class="tok-kw">while</span> (levels[level - <span class="tok-number">1</span>].needed > <span class="tok-number">0</span>) {</span> <span class="line" id="L224"> level -= <span class="tok-number">1</span>;</span> <span class="line" id="L225"> <span class="tok-kw">if</span> (level == <span class="tok-number">0</span>) {</span> <span class="line" id="L226"> <span class="tok-kw">break</span>;</span> <span class="line" id="L227"> }</span> <span class="line" id="L228"> }</span> <span class="line" id="L229"> }</span> <span class="line" id="L230"> }</span> <span class="line" id="L231"> }</span> <span class="line" id="L232"></span> <span class="line" id="L233"> <span class="tok-comment">// Somethings is wrong if at the end, the top level is null or hasn't used</span> </span> <span class="line" id="L234"> <span class="tok-comment">// all of the leaves.</span> </span> <span class="line" id="L235"> assert(leaf_counts[max_bits][max_bits] == n);</span> <span class="line" id="L236"></span> <span class="line" id="L237"> <span class="tok-kw">var</span> bit_count = self.bit_count[<span class="tok-number">0</span> .. max_bits + <span class="tok-number">1</span>];</span> <span class="line" id="L238"> <span class="tok-kw">var</span> bits: <span class="tok-type">u32</span> = <span class="tok-number">1</span>;</span> <span class="line" id="L239"> <span class="tok-kw">var</span> counts = &leaf_counts[max_bits];</span> <span class="line" id="L240"> {</span> <span class="line" id="L241"> <span class="tok-kw">var</span> level = max_bits;</span> <span class="line" id="L242"> <span class="tok-kw">while</span> (level > <span class="tok-number">0</span>) : (level -= <span class="tok-number">1</span>) {</span> <span class="line" id="L243"> <span class="tok-comment">// counts[level] gives the number of literals requiring at least "bits"</span> </span> <span class="line" id="L244"> <span class="tok-comment">// bits to encode.</span> </span> <span class="line" id="L245"> bit_count[bits] = counts[level] - counts[level - <span class="tok-number">1</span>];</span> <span class="line" id="L246"> bits += <span class="tok-number">1</span>;</span> <span class="line" id="L247"> <span class="tok-kw">if</span> (level == <span class="tok-number">0</span>) {</span> <span class="line" id="L248"> <span class="tok-kw">break</span>;</span> <span class="line" id="L249"> }</span> <span class="line" id="L250"> }</span> <span class="line" id="L251"> }</span> <span class="line" id="L252"> <span class="tok-kw">return</span> bit_count;</span> <span class="line" id="L253"> }</span> <span class="line" id="L254"></span> <span class="line" id="L255"> <span class="tok-comment">// Look at the leaves and assign them a bit count and an encoding as specified</span> </span> <span class="line" id="L256"> <span class="tok-comment">// in RFC 1951 3.2.2</span> </span> <span class="line" id="L257"> <span class="tok-kw">fn</span> <span class="tok-fn">assignEncodingAndSize</span>(self: *HuffmanEncoder, bit_count: []<span class="tok-type">u32</span>, list_arg: []LiteralNode) <span class="tok-type">void</span> {</span> <span class="line" id="L258"> <span class="tok-kw">var</span> code = <span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, <span class="tok-number">0</span>);</span> <span class="line" id="L259"> <span class="tok-kw">var</span> list = list_arg;</span> <span class="line" id="L260"></span> <span class="line" id="L261"> <span class="tok-kw">for</span> (bit_count, <span class="tok-number">0</span>..) \|bits, n\| {</span> <span class="line" id="L262"> code <<= <span class="tok-number">1</span>;</span> <span class="line" id="L263"> <span class="tok-kw">if</span> (n == <span class="tok-number">0</span> <span class="tok-kw">or</span> bits == <span class="tok-number">0</span>) {</span> <span class="line" id="L264"> <span class="tok-kw">continue</span>;</span> <span class="line" id="L265"> }</span> <span class="line" id="L266"> <span class="tok-comment">// The literals list[list.len-bits] .. list[list.len-bits]</span> </span> <span class="line" id="L267"> <span class="tok-comment">// are encoded using "bits" bits, and get the values</span> </span> <span class="line" id="L268"> <span class="tok-comment">// code, code + 1, .... The code values are</span> </span> <span class="line" id="L269"> <span class="tok-comment">// assigned in literal order (not frequency order).</span> </span> <span class="line" id="L270"> <span class="tok-kw">var</span> chunk = list[list.len - <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(bits)) ..];</span> <span class="line" id="L271"></span> <span class="line" id="L272"> self.lns = chunk;</span> <span class="line" id="L273"> mem.sort(LiteralNode, self.lns, {}, byLiteral);</span> <span class="line" id="L274"></span> <span class="line" id="L275"> <span class="tok-kw">for</span> (chunk) \|node\| {</span> <span class="line" id="L276"> self.codes[node.literal] = HuffCode{</span> <span class="line" id="L277"> .code = bu.bitReverse(<span class="tok-type">u16</span>, code, <span class="tok-builtin">@as</span>(<span class="tok-type">u5</span>, <span class="tok-builtin">@intCast</span>(n))),</span> <span class="line" id="L278"> .len = <span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, <span class="tok-builtin">@intCast</span>(n)),</span> <span class="line" id="L279"> };</span> <span class="line" id="L280"> code += <span class="tok-number">1</span>;</span> <span class="line" id="L281"> }</span> <span class="line" id="L282"> list = list[<span class="tok-number">0</span> .. list.len - <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(bits))];</span> <span class="line" id="L283"> }</span> <span class="line" id="L284"> }</span> <span class="line" id="L285">};</span> <span class="line" id="L286"></span> <span class="line" id="L287"><span class="tok-kw">fn</span> <span class="tok-fn">maxNode</span>() LiteralNode {</span> <span class="line" id="L288"> <span class="tok-kw">return</span> LiteralNode{</span> <span class="line" id="L289"> .literal = math.maxInt(<span class="tok-type">u16</span>),</span> <span class="line" id="L290"> .freq = math.maxInt(<span class="tok-type">u16</span>),</span> <span class="line" id="L291"> };</span> <span class="line" id="L292">}</span> <span class="line" id="L293"></span> <span class="line" id="L294"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">newHuffmanEncoder</span>(allocator: Allocator, size: <span class="tok-type">u32</span>) !HuffmanEncoder {</span> <span class="line" id="L295"> <span class="tok-kw">return</span> HuffmanEncoder{</span> <span class="line" id="L296"> .codes = <span class="tok-kw">try</span> allocator.alloc(HuffCode, size),</span> <span class="line" id="L297"> <span class="tok-comment">// Allocate a reusable buffer with the longest possible frequency table.</span> </span> <span class="line" id="L298"> <span class="tok-comment">// (deflate_const.max_num_frequencies).</span> </span> <span class="line" id="L299"> .freq_cache = <span class="tok-kw">try</span> allocator.alloc(LiteralNode, deflate_const.max_num_frequencies + <span class="tok-number">1</span>),</span> <span class="line" id="L300"> .allocator = allocator,</span> <span class="line" id="L301"> };</span> <span class="line" id="L302">}</span> <span class="line" id="L303"></span> <span class="line" id="L304"><span class="tok-comment">// Generates a HuffmanCode corresponding to the fixed literal table</span> </span> <span class="line" id="L305"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">generateFixedLiteralEncoding</span>(allocator: Allocator) !HuffmanEncoder {</span> <span class="line" id="L306"> <span class="tok-kw">var</span> h = <span class="tok-kw">try</span> newHuffmanEncoder(allocator, deflate_const.max_num_frequencies);</span> <span class="line" id="L307"> <span class="tok-kw">var</span> codes = h.codes;</span> <span class="line" id="L308"> <span class="tok-kw">var</span> ch: <span class="tok-type">u16</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L309"></span> <span class="line" id="L310"> <span class="tok-kw">while</span> (ch < deflate_const.max_num_frequencies) : (ch += <span class="tok-number">1</span>) {</span> <span class="line" id="L311"> <span class="tok-kw">var</span> bits: <span class="tok-type">u16</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L312"> <span class="tok-kw">var</span> size: <span class="tok-type">u16</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L313"> <span class="tok-kw">switch</span> (ch) {</span> <span class="line" id="L314"> <span class="tok-number">0</span>...<span class="tok-number">143</span> => {</span> <span class="line" id="L315"> <span class="tok-comment">// size 8, 000110000 .. 10111111</span> </span> <span class="line" id="L316"> bits = ch + <span class="tok-number">48</span>;</span> <span class="line" id="L317"> size = <span class="tok-number">8</span>;</span> <span class="line" id="L318"> },</span> <span class="line" id="L319"> <span class="tok-number">144</span>...<span class="tok-number">255</span> => {</span> <span class="line" id="L320"> <span class="tok-comment">// size 9, 110010000 .. 111111111</span> </span> <span class="line" id="L321"> bits = ch + <span class="tok-number">400</span> - <span class="tok-number">144</span>;</span> <span class="line" id="L322"> size = <span class="tok-number">9</span>;</span> <span class="line" id="L323"> },</span> <span class="line" id="L324"> <span class="tok-number">256</span>...<span class="tok-number">279</span> => {</span> <span class="line" id="L325"> <span class="tok-comment">// size 7, 0000000 .. 0010111</span> </span> <span class="line" id="L326"> bits = ch - <span class="tok-number">256</span>;</span> <span class="line" id="L327"> size = <span class="tok-number">7</span>;</span> <span class="line" id="L328"> },</span> <span class="line" id="L329"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L330"> <span class="tok-comment">// size 8, 11000000 .. 11000111</span> </span> <span class="line" id="L331"> bits = ch + <span class="tok-number">192</span> - <span class="tok-number">280</span>;</span> <span class="line" id="L332"> size = <span class="tok-number">8</span>;</span> <span class="line" id="L333"> },</span> <span class="line" id="L334"> }</span> <span class="line" id="L335"> codes[ch] = HuffCode{ .code = bu.bitReverse(<span class="tok-type">u16</span>, bits, <span class="tok-builtin">@as</span>(<span class="tok-type">u5</span>, <span class="tok-builtin">@intCast</span>(size))), .len = size };</span> <span class="line" id="L336"> }</span> <span class="line" id="L337"> <span class="tok-kw">return</span> h;</span> <span class="line" id="L338">}</span> <span class="line" id="L339"></span> <span class="line" id="L340"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">generateFixedOffsetEncoding</span>(allocator: Allocator) !HuffmanEncoder {</span> <span class="line" id="L341"> <span class="tok-kw">var</span> h = <span class="tok-kw">try</span> newHuffmanEncoder(allocator, <span class="tok-number">30</span>);</span> <span class="line" id="L342"> <span class="tok-kw">var</span> codes = h.codes;</span> <span class="line" id="L343"> <span class="tok-kw">for</span> (codes, <span class="tok-number">0</span>..) \|_, ch\| {</span> <span class="line" id="L344"> codes[ch] = HuffCode{ .code = bu.bitReverse(<span class="tok-type">u16</span>, <span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, <span class="tok-builtin">@intCast</span>(ch)), <span class="tok-number">5</span>), .len = <span class="tok-number">5</span> };</span> <span class="line" id="L345"> }</span> <span class="line" id="L346"> <span class="tok-kw">return</span> h;</span> <span class="line" id="L347">}</span> <span class="line" id="L348"></span> <span class="line" id="L349"><span class="tok-kw">fn</span> <span class="tok-fn">byLiteral</span>(context: <span class="tok-type">void</span>, a: LiteralNode, b: LiteralNode) <span class="tok-type">bool</span> {</span> <span class="line" id="L350"> _ = context;</span> <span class="line" id="L351"> <span class="tok-kw">return</span> a.literal < b.literal;</span> <span class="line" id="L352">}</span> <span class="line" id="L353"></span> <span class="line" id="L354"><span class="tok-kw">fn</span> <span class="tok-fn">byFreq</span>(context: <span class="tok-type">void</span>, a: LiteralNode, b: LiteralNode) <span class="tok-type">bool</span> {</span> <span class="line" id="L355"> _ = context;</span> <span class="line" id="L356"> <span class="tok-kw">if</span> (a.freq == b.freq) {</span> <span class="line" id="L357"> <span class="tok-kw">return</span> a.literal < b.literal;</span> <span class="line" id="L358"> }</span> <span class="line" id="L359"> <span class="tok-kw">return</span> a.freq < b.freq;</span> <span class="line" id="L360">}</span> <span class="line" id="L361"></span> <span class="line" id="L362"><span class="tok-kw">test</span> <span class="tok-str">"generate a Huffman code from an array of frequencies"</span> {</span> <span class="line" id="L363"> <span class="tok-kw">var</span> freqs: [<span class="tok-number">19</span>]<span class="tok-type">u16</span> = [_]<span class="tok-type">u16</span>{</span> <span class="line" id="L364"> <span class="tok-number">8</span>, <span class="tok-comment">// 0</span> </span> <span class="line" id="L365"> <span class="tok-number">1</span>, <span class="tok-comment">// 1</span> </span> <span class="line" id="L366"> <span class="tok-number">1</span>, <span class="tok-comment">// 2</span> </span> <span class="line" id="L367"> <span class="tok-number">2</span>, <span class="tok-comment">// 3</span> </span> <span class="line" id="L368"> <span class="tok-number">5</span>, <span class="tok-comment">// 4</span> </span> <span class="line" id="L369"> <span class="tok-number">10</span>, <span class="tok-comment">// 5</span> </span> <span class="line" id="L370"> <span class="tok-number">9</span>, <span class="tok-comment">// 6</span> </span> <span class="line" id="L371"> <span class="tok-number">1</span>, <span class="tok-comment">// 7</span> </span> <span class="line" id="L372"> <span class="tok-number">0</span>, <span class="tok-comment">// 8</span> </span> <span class="line" id="L373"> <span class="tok-number">0</span>, <span class="tok-comment">// 9</span> </span> <span class="line" id="L374"> <span class="tok-number">0</span>, <span class="tok-comment">// 10</span> </span> <span class="line" id="L375"> <span class="tok-number">0</span>, <span class="tok-comment">// 11</span> </span> <span class="line" id="L376"> <span class="tok-number">0</span>, <span class="tok-comment">// 12</span> </span> <span class="line" id="L377"> <span class="tok-number">0</span>, <span class="tok-comment">// 13</span> </span> <span class="line" id="L378"> <span class="tok-number">0</span>, <span class="tok-comment">// 14</span> </span> <span class="line" id="L379"> <span class="tok-number">0</span>, <span class="tok-comment">// 15</span> </span> <span class="line" id="L380"> <span class="tok-number">1</span>, <span class="tok-comment">// 16</span> </span> <span class="line" id="L381"> <span class="tok-number">3</span>, <span class="tok-comment">// 17</span> </span> <span class="line" id="L382"> <span class="tok-number">5</span>, <span class="tok-comment">// 18</span> </span> <span class="line" id="L383"> };</span> <span class="line" id="L384"></span> <span class="line" id="L385"> <span class="tok-kw">var</span> enc = <span class="tok-kw">try</span> newHuffmanEncoder(testing.allocator, freqs.len);</span> <span class="line" id="L386"> <span class="tok-kw">defer</span> enc.deinit();</span> <span class="line" id="L387"> enc.generate(freqs[<span class="tok-number">0</span>..], <span class="tok-number">7</span>);</span> <span class="line" id="L388"></span> <span class="line" id="L389"> <span class="tok-kw">try</span> testing.expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-number">141</span>), enc.bitLength(freqs[<span class="tok-number">0</span>..]));</span> <span class="line" id="L390"></span> <span class="line" id="L391"> <span class="tok-kw">try</span> testing.expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-number">3</span>), enc.codes[<span class="tok-number">0</span>].len);</span> <span class="line" id="L392"> <span class="tok-kw">try</span> testing.expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-number">6</span>), enc.codes[<span class="tok-number">1</span>].len);</span> <span class="line" id="L393"> <span class="tok-kw">try</span> testing.expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-number">6</span>), enc.codes[<span class="tok-number">2</span>].len);</span> <span class="line" id="L394"> <span class="tok-kw">try</span> testing.expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-number">5</span>), enc.codes[<span class="tok-number">3</span>].len);</span> <span class="line" id="L395"> <span class="tok-kw">try</span> testing.expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-number">3</span>), enc.codes[<span class="tok-number">4</span>].len);</span> <span class="line" id="L396"> <span class="tok-kw">try</span> testing.expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-number">2</span>), enc.codes[<span class="tok-number">5</span>].len);</span> <span class="line" id="L397"> <span class="tok-kw">try</span> testing.expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-number">2</span>), enc.codes[<span class="tok-number">6</span>].len);</span> <span class="line" id="L398"> <span class="tok-kw">try</span> testing.expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-number">6</span>), enc.codes[<span class="tok-number">7</span>].len);</span> <span class="line" id="L399"> <span class="tok-kw">try</span> testing.expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-number">0</span>), enc.codes[<span class="tok-number">8</span>].len);</span> <span class="line" id="L400"> <span class="tok-kw">try</span> testing.expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-number">0</span>), enc.codes[<span class="tok-number">9</span>].len);</span> <span class="line" id="L401"> <span class="tok-kw">try</span> testing.expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-number">0</span>), enc.codes[<span class="tok-number">10</span>].len);</span> <span class="line" id="L402"> <span class="tok-kw">try</span> testing.expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-number">0</span>), enc.codes[<span class="tok-number">11</span>].len);</span> <span class="line" id="L403"> <span class="tok-kw">try</span> testing.expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-number">0</span>), enc.codes[<span class="tok-number">12</span>].len);</span> <span class="line" id="L404"> <span class="tok-kw">try</span> testing.expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-number">0</span>), enc.codes[<span class="tok-number">13</span>].len);</span> <span class="line" id="L405"> <span class="tok-kw">try</span> testing.expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-number">0</span>), enc.codes[<span class="tok-number">14</span>].len);</span> <span class="line" id="L406"> <span class="tok-kw">try</span> testing.expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-number">0</span>), enc.codes[<span class="tok-number">15</span>].len);</span> <span class="line" id="L407"> <span class="tok-kw">try</span> testing.expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-number">6</span>), enc.codes[<span class="tok-number">16</span>].len);</span> <span class="line" id="L408"> <span class="tok-kw">try</span> testing.expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-number">5</span>), enc.codes[<span class="tok-number">17</span>].len);</span> <span class="line" id="L409"> <span class="tok-kw">try</span> testing.expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-number">3</span>), enc.codes[<span class="tok-number">18</span>].len);</span> <span class="line" id="L410"></span> <span class="line" id="L411"> <span class="tok-kw">try</span> testing.expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, <span class="tok-number">0x0</span>), enc.codes[<span class="tok-number">5</span>].code);</span> <span class="line" id="L412"> <span class="tok-kw">try</span> testing.expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, <span class="tok-number">0x2</span>), enc.codes[<span class="tok-number">6</span>].code);</span> <span class="line" id="L413"> <span class="tok-kw">try</span> testing.expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, <span class="tok-number">0x1</span>), enc.codes[<span class="tok-number">0</span>].code);</span> <span class="line" id="L414"> <span class="tok-kw">try</span> testing.expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, <span class="tok-number">0x5</span>), enc.codes[<span class="tok-number">4</span>].code);</span> <span class="line" id="L415"> <span class="tok-kw">try</span> testing.expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, <span class="tok-number">0x3</span>), enc.codes[<span class="tok-number">18</span>].code);</span> <span class="line" id="L416"> <span class="tok-kw">try</span> testing.expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, <span class="tok-number">0x7</span>), enc.codes[<span class="tok-number">3</span>].code);</span> <span class="line" id="L417"> <span class="tok-kw">try</span> testing.expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, <span class="tok-number">0x17</span>), enc.codes[<span class="tok-number">17</span>].code);</span> <span class="line" id="L418"> <span class="tok-kw">try</span> testing.expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, <span class="tok-number">0x0f</span>), enc.codes[<span class="tok-number">1</span>].code);</span> <span class="line" id="L419"> <span class="tok-kw">try</span> testing.expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, <span class="tok-number">0x2f</span>), enc.codes[<span class="tok-number">2</span>].code);</span> <span class="line" id="L420"> <span class="tok-kw">try</span> testing.expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, <span class="tok-number">0x1f</span>), enc.codes[<span class="tok-number">7</span>].code);</span> <span class="line" id="L421"> <span class="tok-kw">try</span> testing.expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, <span class="tok-number">0x3f</span>), enc.codes[<span class="tok-number">16</span>].code);</span> <span class="line" id="L422">}</span> <span class="line" id="L423"></span> <span class="line" id="L424"><span class="tok-kw">test</span> <span class="tok-str">"generate a Huffman code for the fixed literal table specific to Deflate"</span> {</span> <span class="line" id="L425"> <span class="tok-kw">var</span> enc = <span class="tok-kw">try</span> generateFixedLiteralEncoding(testing.allocator);</span> <span class="line" id="L426"> <span class="tok-kw">defer</span> enc.deinit();</span> <span class="line" id="L427">}</span> <span class="line" id="L428"></span> <span class="line" id="L429"><span class="tok-kw">test</span> <span class="tok-str">"generate a Huffman code for the 30 possible relative offsets (LZ77 distances) of Deflate"</span> {</span> <span class="line" id="L430"> <span class="tok-kw">var</span> enc = <span class="tok-kw">try</span> generateFixedOffsetEncoding(testing.allocator);</span> <span class="line" id="L431"> <span class="tok-kw">defer</span> enc.deinit();</span> <span class="line" id="L432">}</span> <span class="line" id="L433"></span> </code></pre></body> </html>
repos/yazap/docs/src/std/compress	repos/yazap/docs/src/std/compress/deflate/decompressor.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>compress/deflate/decompressor.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> assert = std.debug.assert;</span> <span class="line" id="L3"><span class="tok-kw">const</span> math = std.math;</span> <span class="line" id="L4"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L5"></span> <span class="line" id="L6"><span class="tok-kw">const</span> Allocator = std.mem.Allocator;</span> <span class="line" id="L7"><span class="tok-kw">const</span> ArrayList = std.ArrayList;</span> <span class="line" id="L8"></span> <span class="line" id="L9"><span class="tok-kw">const</span> bu = <span class="tok-builtin">@import</span>(<span class="tok-str">"bits_utils.zig"</span>);</span> <span class="line" id="L10"><span class="tok-kw">const</span> ddec = <span class="tok-builtin">@import</span>(<span class="tok-str">"dict_decoder.zig"</span>);</span> <span class="line" id="L11"><span class="tok-kw">const</span> deflate_const = <span class="tok-builtin">@import</span>(<span class="tok-str">"deflate_const.zig"</span>);</span> <span class="line" id="L12"></span> <span class="line" id="L13"><span class="tok-kw">const</span> max_match_offset = deflate_const.max_match_offset;</span> <span class="line" id="L14"><span class="tok-kw">const</span> end_block_marker = deflate_const.end_block_marker;</span> <span class="line" id="L15"></span> <span class="line" id="L16"><span class="tok-kw">const</span> max_code_len = <span class="tok-number">16</span>; <span class="tok-comment">// max length of Huffman code</span> </span> <span class="line" id="L17"><span class="tok-comment">// The next three numbers come from the RFC section 3.2.7, with the</span> </span> <span class="line" id="L18"><span class="tok-comment">// additional proviso in section 3.2.5 which implies that distance codes</span> </span> <span class="line" id="L19"><span class="tok-comment">// 30 and 31 should never occur in compressed data.</span> </span> <span class="line" id="L20"><span class="tok-kw">const</span> max_num_lit = <span class="tok-number">286</span>;</span> <span class="line" id="L21"><span class="tok-kw">const</span> max_num_dist = <span class="tok-number">30</span>;</span> <span class="line" id="L22"><span class="tok-kw">const</span> num_codes = <span class="tok-number">19</span>; <span class="tok-comment">// number of codes in Huffman meta-code</span> </span> <span class="line" id="L23"></span> <span class="line" id="L24"><span class="tok-kw">var</span> corrupt_input_error_offset: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L25"></span> <span class="line" id="L26"><span class="tok-kw">const</span> InflateError = <span class="tok-kw">error</span>{</span> <span class="line" id="L27"> CorruptInput, <span class="tok-comment">// A CorruptInput error reports the presence of corrupt input at a given offset.</span> </span> <span class="line" id="L28"> BadInternalState, <span class="tok-comment">// An BadInternalState reports an error in the flate code itself.</span> </span> <span class="line" id="L29"> BadReaderState, <span class="tok-comment">// An error was encountered while accessing the inner reader</span> </span> <span class="line" id="L30"> UnexpectedEndOfStream,</span> <span class="line" id="L31"> EndOfStreamWithNoError,</span> <span class="line" id="L32">};</span> <span class="line" id="L33"></span> <span class="line" id="L34"><span class="tok-comment">// The data structure for decoding Huffman tables is based on that of</span> </span> <span class="line" id="L35"><span class="tok-comment">// zlib. There is a lookup table of a fixed bit width (huffman_chunk_bits),</span> </span> <span class="line" id="L36"><span class="tok-comment">// For codes smaller than the table width, there are multiple entries</span> </span> <span class="line" id="L37"><span class="tok-comment">// (each combination of trailing bits has the same value). For codes</span> </span> <span class="line" id="L38"><span class="tok-comment">// larger than the table width, the table contains a link to an overflow</span> </span> <span class="line" id="L39"><span class="tok-comment">// table. The width of each entry in the link table is the maximum code</span> </span> <span class="line" id="L40"><span class="tok-comment">// size minus the chunk width.</span> </span> <span class="line" id="L41"><span class="tok-comment">//</span> </span> <span class="line" id="L42"><span class="tok-comment">// Note that you can do a lookup in the table even without all bits</span> </span> <span class="line" id="L43"><span class="tok-comment">// filled. Since the extra bits are zero, and the DEFLATE Huffman codes</span> </span> <span class="line" id="L44"><span class="tok-comment">// have the property that shorter codes come before longer ones, the</span> </span> <span class="line" id="L45"><span class="tok-comment">// bit length estimate in the result is a lower bound on the actual</span> </span> <span class="line" id="L46"><span class="tok-comment">// number of bits.</span> </span> <span class="line" id="L47"><span class="tok-comment">//</span> </span> <span class="line" id="L48"><span class="tok-comment">// See the following:</span> </span> <span class="line" id="L49"><span class="tok-comment">// https://github.com/madler/zlib/raw/master/doc/algorithm.txt</span> </span> <span class="line" id="L50"></span> <span class="line" id="L51"><span class="tok-comment">// chunk & 15 is number of bits</span> </span> <span class="line" id="L52"><span class="tok-comment">// chunk >> 4 is value, including table link</span> </span> <span class="line" id="L53"></span> <span class="line" id="L54"><span class="tok-kw">const</span> huffman_chunk_bits = <span class="tok-number">9</span>;</span> <span class="line" id="L55"><span class="tok-kw">const</span> huffman_num_chunks = <span class="tok-number">1</span> << huffman_chunk_bits; <span class="tok-comment">// 512</span> </span> <span class="line" id="L56"><span class="tok-kw">const</span> huffman_count_mask = <span class="tok-number">15</span>; <span class="tok-comment">// 0b1111</span> </span> <span class="line" id="L57"><span class="tok-kw">const</span> huffman_value_shift = <span class="tok-number">4</span>;</span> <span class="line" id="L58"></span> <span class="line" id="L59"><span class="tok-kw">const</span> HuffmanDecoder = <span class="tok-kw">struct</span> {</span> <span class="line" id="L60"> <span class="tok-kw">const</span> Self = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L61"></span> <span class="line" id="L62"> allocator: Allocator = <span class="tok-null">undefined</span>,</span> <span class="line" id="L63"></span> <span class="line" id="L64"> min: <span class="tok-type">u32</span> = <span class="tok-number">0</span>, <span class="tok-comment">// the minimum code length</span> </span> <span class="line" id="L65"> chunks: [huffman_num_chunks]<span class="tok-type">u16</span> = [<span class="tok-number">1</span>]<span class="tok-type">u16</span>{<span class="tok-number">0</span>} ** huffman_num_chunks, <span class="tok-comment">// chunks as described above</span> </span> <span class="line" id="L66"> links: [][]<span class="tok-type">u16</span> = <span class="tok-null">undefined</span>, <span class="tok-comment">// overflow links</span> </span> <span class="line" id="L67"> link_mask: <span class="tok-type">u32</span> = <span class="tok-number">0</span>, <span class="tok-comment">// mask the width of the link table</span> </span> <span class="line" id="L68"> initialized: <span class="tok-type">bool</span> = <span class="tok-null">false</span>,</span> <span class="line" id="L69"> sub_chunks: ArrayList(<span class="tok-type">u32</span>) = <span class="tok-null">undefined</span>,</span> <span class="line" id="L70"></span> <span class="line" id="L71"> <span class="tok-comment">// Initialize Huffman decoding tables from array of code lengths.</span> </span> <span class="line" id="L72"> <span class="tok-comment">// Following this function, self is guaranteed to be initialized into a complete</span> </span> <span class="line" id="L73"> <span class="tok-comment">// tree (i.e., neither over-subscribed nor under-subscribed). The exception is a</span> </span> <span class="line" id="L74"> <span class="tok-comment">// degenerate case where the tree has only a single symbol with length 1. Empty</span> </span> <span class="line" id="L75"> <span class="tok-comment">// trees are permitted.</span> </span> <span class="line" id="L76"> <span class="tok-kw">fn</span> <span class="tok-fn">init</span>(self: Self, allocator: Allocator, lengths: []<span class="tok-type">u32</span>) !<span class="tok-type">bool</span> {</span> <span class="line" id="L77"></span> <span class="line" id="L78"> <span class="tok-comment">// Sanity enables additional runtime tests during Huffman</span> </span> <span class="line" id="L79"> <span class="tok-comment">// table construction. It's intended to be used during</span> </span> <span class="line" id="L80"> <span class="tok-comment">// development and debugging</span> </span> <span class="line" id="L81"> <span class="tok-kw">const</span> sanity = <span class="tok-null">false</span>;</span> <span class="line" id="L82"></span> <span class="line" id="L83"> <span class="tok-kw">if</span> (self.min != <span class="tok-number">0</span>) {</span> <span class="line" id="L84"> self. = HuffmanDecoder{};</span> <span class="line" id="L85"> }</span> <span class="line" id="L86"></span> <span class="line" id="L87"> self.allocator = allocator;</span> <span class="line" id="L88"></span> <span class="line" id="L89"> <span class="tok-comment">// Count number of codes of each length,</span> </span> <span class="line" id="L90"> <span class="tok-comment">// compute min and max length.</span> </span> <span class="line" id="L91"> <span class="tok-kw">var</span> count: [max_code_len]<span class="tok-type">u32</span> = [<span class="tok-number">1</span>]<span class="tok-type">u32</span>{<span class="tok-number">0</span>} max_code_len;</span> <span class="line" id="L92"> <span class="tok-kw">var</span> min: <span class="tok-type">u32</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L93"> <span class="tok-kw">var</span> max: <span class="tok-type">u32</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L94"> <span class="tok-kw">for</span> (lengths) \|n\| {</span> <span class="line" id="L95"> <span class="tok-kw">if</span> (n == <span class="tok-number">0</span>) {</span> <span class="line" id="L96"> <span class="tok-kw">continue</span>;</span> <span class="line" id="L97"> }</span> <span class="line" id="L98"> <span class="tok-kw">if</span> (min == <span class="tok-number">0</span>) {</span> <span class="line" id="L99"> min = n;</span> <span class="line" id="L100"> }</span> <span class="line" id="L101"> min = <span class="tok-builtin">@min</span>(n, min);</span> <span class="line" id="L102"> max = <span class="tok-builtin">@max</span>(n, max);</span> <span class="line" id="L103"> count[n] += <span class="tok-number">1</span>;</span> <span class="line" id="L104"> }</span> <span class="line" id="L105"></span> <span class="line" id="L106"> <span class="tok-comment">// Empty tree. The decompressor.huffSym function will fail later if the tree</span> </span> <span class="line" id="L107"> <span class="tok-comment">// is used. Technically, an empty tree is only valid for the HDIST tree and</span> </span> <span class="line" id="L108"> <span class="tok-comment">// not the HCLEN and HLIT tree. However, a stream with an empty HCLEN tree</span> </span> <span class="line" id="L109"> <span class="tok-comment">// is guaranteed to fail since it will attempt to use the tree to decode the</span> </span> <span class="line" id="L110"> <span class="tok-comment">// codes for the HLIT and HDIST trees. Similarly, an empty HLIT tree is</span> </span> <span class="line" id="L111"> <span class="tok-comment">// guaranteed to fail later since the compressed data section must be</span> </span> <span class="line" id="L112"> <span class="tok-comment">// composed of at least one symbol (the end-of-block marker).</span> </span> <span class="line" id="L113"> <span class="tok-kw">if</span> (max == <span class="tok-number">0</span>) {</span> <span class="line" id="L114"> <span class="tok-kw">return</span> <span class="tok-null">true</span>;</span> <span class="line" id="L115"> }</span> <span class="line" id="L116"></span> <span class="line" id="L117"> <span class="tok-kw">var</span> next_code: [max_code_len]<span class="tok-type">u32</span> = [<span class="tok-number">1</span>]<span class="tok-type">u32</span>{<span class="tok-number">0</span>} max_code_len;</span> <span class="line" id="L118"> <span class="tok-kw">var</span> code: <span class="tok-type">u32</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L119"> {</span> <span class="line" id="L120"> <span class="tok-kw">var</span> i = min;</span> <span class="line" id="L121"> <span class="tok-kw">while</span> (i <= max) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L122"> code <<= <span class="tok-number">1</span>;</span> <span class="line" id="L123"> next_code[i] = code;</span> <span class="line" id="L124"> code += count[i];</span> <span class="line" id="L125"> }</span> <span class="line" id="L126"> }</span> <span class="line" id="L127"></span> <span class="line" id="L128"> <span class="tok-comment">// Check that the coding is complete (i.e., that we've</span> </span> <span class="line" id="L129"> <span class="tok-comment">// assigned all 2-to-the-max possible bit sequences).</span> </span> <span class="line" id="L130"> <span class="tok-comment">// Exception: To be compatible with zlib, we also need to</span> </span> <span class="line" id="L131"> <span class="tok-comment">// accept degenerate single-code codings. See also</span> </span> <span class="line" id="L132"> <span class="tok-comment">// TestDegenerateHuffmanCoding.</span> </span> <span class="line" id="L133"> <span class="tok-kw">if</span> (code != <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-number">1</span>) << <span class="tok-builtin">@as</span>(<span class="tok-type">u5</span>, <span class="tok-builtin">@intCast</span>(max)) <span class="tok-kw">and</span> !(code == <span class="tok-number">1</span> <span class="tok-kw">and</span> max == <span class="tok-number">1</span>)) {</span> <span class="line" id="L134"> <span class="tok-kw">return</span> <span class="tok-null">false</span>;</span> <span class="line" id="L135"> }</span> <span class="line" id="L136"></span> <span class="line" id="L137"> self.min = min;</span> <span class="line" id="L138"> <span class="tok-kw">if</span> (max > huffman_chunk_bits) {</span> <span class="line" id="L139"> <span class="tok-kw">var</span> num_links = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-number">1</span>) << <span class="tok-builtin">@as</span>(<span class="tok-type">u5</span>, <span class="tok-builtin">@intCast</span>(max - huffman_chunk_bits));</span> <span class="line" id="L140"> self.link_mask = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(num_links - <span class="tok-number">1</span>));</span> <span class="line" id="L141"></span> <span class="line" id="L142"> <span class="tok-comment">// create link tables</span> </span> <span class="line" id="L143"> <span class="tok-kw">var</span> link = next_code[huffman_chunk_bits + <span class="tok-number">1</span>] >> <span class="tok-number">1</span>;</span> <span class="line" id="L144"> self.links = <span class="tok-kw">try</span> self.allocator.alloc([]<span class="tok-type">u16</span>, huffman_num_chunks - link);</span> <span class="line" id="L145"> self.sub_chunks = ArrayList(<span class="tok-type">u32</span>).init(self.allocator);</span> <span class="line" id="L146"> self.initialized = <span class="tok-null">true</span>;</span> <span class="line" id="L147"> <span class="tok-kw">var</span> j = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(link));</span> <span class="line" id="L148"> <span class="tok-kw">while</span> (j < huffman_num_chunks) : (j += <span class="tok-number">1</span>) {</span> <span class="line" id="L149"> <span class="tok-kw">var</span> reverse = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(bu.bitReverse(<span class="tok-type">u16</span>, <span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, <span class="tok-builtin">@intCast</span>(j)), <span class="tok-number">16</span>)));</span> <span class="line" id="L150"> reverse >>= <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(<span class="tok-number">16</span> - huffman_chunk_bits));</span> <span class="line" id="L151"> <span class="tok-kw">var</span> off = j - <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(link));</span> <span class="line" id="L152"> <span class="tok-kw">if</span> (sanity) {</span> <span class="line" id="L153"> <span class="tok-comment">// check we are not overwriting an existing chunk</span> </span> <span class="line" id="L154"> assert(self.chunks[reverse] == <span class="tok-number">0</span>);</span> <span class="line" id="L155"> }</span> <span class="line" id="L156"> self.chunks[reverse] = <span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, <span class="tok-builtin">@intCast</span>(off << huffman_value_shift \| (huffman_chunk_bits + <span class="tok-number">1</span>)));</span> <span class="line" id="L157"> self.links[off] = <span class="tok-kw">try</span> self.allocator.alloc(<span class="tok-type">u16</span>, num_links);</span> <span class="line" id="L158"> <span class="tok-kw">if</span> (sanity) {</span> <span class="line" id="L159"> <span class="tok-comment">// initialize to a known invalid chunk code (0) to see if we overwrite</span> </span> <span class="line" id="L160"> <span class="tok-comment">// this value later on</span> </span> <span class="line" id="L161"> <span class="tok-builtin">@memset</span>(self.links[off], <span class="tok-number">0</span>);</span> <span class="line" id="L162"> }</span> <span class="line" id="L163"> <span class="tok-kw">try</span> self.sub_chunks.append(off);</span> <span class="line" id="L164"> }</span> <span class="line" id="L165"> }</span> <span class="line" id="L166"></span> <span class="line" id="L167"> <span class="tok-kw">for</span> (lengths, <span class="tok-number">0</span>..) \|n, li\| {</span> <span class="line" id="L168"> <span class="tok-kw">if</span> (n == <span class="tok-number">0</span>) {</span> <span class="line" id="L169"> <span class="tok-kw">continue</span>;</span> <span class="line" id="L170"> }</span> <span class="line" id="L171"> <span class="tok-kw">var</span> ncode = next_code[n];</span> <span class="line" id="L172"> next_code[n] += <span class="tok-number">1</span>;</span> <span class="line" id="L173"> <span class="tok-kw">var</span> chunk = <span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, <span class="tok-builtin">@intCast</span>((li << huffman_value_shift) \| n));</span> <span class="line" id="L174"> <span class="tok-kw">var</span> reverse = <span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, <span class="tok-builtin">@intCast</span>(bu.bitReverse(<span class="tok-type">u16</span>, <span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, <span class="tok-builtin">@intCast</span>(ncode)), <span class="tok-number">16</span>)));</span> <span class="line" id="L175"> reverse >>= <span class="tok-builtin">@as</span>(<span class="tok-type">u4</span>, <span class="tok-builtin">@intCast</span>(<span class="tok-number">16</span> - n));</span> <span class="line" id="L176"> <span class="tok-kw">if</span> (n <= huffman_chunk_bits) {</span> <span class="line" id="L177"> <span class="tok-kw">var</span> off = reverse;</span> <span class="line" id="L178"> <span class="tok-kw">while</span> (off < self.chunks.len) : (off += <span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, <span class="tok-number">1</span>) << <span class="tok-builtin">@as</span>(<span class="tok-type">u4</span>, <span class="tok-builtin">@intCast</span>(n))) {</span> <span class="line" id="L179"> <span class="tok-comment">// We should never need to overwrite</span> </span> <span class="line" id="L180"> <span class="tok-comment">// an existing chunk. Also, 0 is</span> </span> <span class="line" id="L181"> <span class="tok-comment">// never a valid chunk, because the</span> </span> <span class="line" id="L182"> <span class="tok-comment">// lower 4 "count" bits should be</span> </span> <span class="line" id="L183"> <span class="tok-comment">// between 1 and 15.</span> </span> <span class="line" id="L184"> <span class="tok-kw">if</span> (sanity) {</span> <span class="line" id="L185"> assert(self.chunks[off] == <span class="tok-number">0</span>);</span> <span class="line" id="L186"> }</span> <span class="line" id="L187"> self.chunks[off] = chunk;</span> <span class="line" id="L188"> }</span> <span class="line" id="L189"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L190"> <span class="tok-kw">var</span> j = reverse & (huffman_num_chunks - <span class="tok-number">1</span>);</span> <span class="line" id="L191"> <span class="tok-kw">if</span> (sanity) {</span> <span class="line" id="L192"> <span class="tok-comment">// Expect an indirect chunk</span> </span> <span class="line" id="L193"> assert(self.chunks[j] & huffman_count_mask == huffman_chunk_bits + <span class="tok-number">1</span>);</span> <span class="line" id="L194"> <span class="tok-comment">// Longer codes should have been</span> </span> <span class="line" id="L195"> <span class="tok-comment">// associated with a link table above.</span> </span> <span class="line" id="L196"> }</span> <span class="line" id="L197"> <span class="tok-kw">var</span> value = self.chunks[j] >> huffman_value_shift;</span> <span class="line" id="L198"> <span class="tok-kw">var</span> link_tab = self.links[value];</span> <span class="line" id="L199"> reverse >>= huffman_chunk_bits;</span> <span class="line" id="L200"> <span class="tok-kw">var</span> off = reverse;</span> <span class="line" id="L201"> <span class="tok-kw">while</span> (off < link_tab.len) : (off += <span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, <span class="tok-number">1</span>) << <span class="tok-builtin">@as</span>(<span class="tok-type">u4</span>, <span class="tok-builtin">@intCast</span>(n - huffman_chunk_bits))) {</span> <span class="line" id="L202"> <span class="tok-kw">if</span> (sanity) {</span> <span class="line" id="L203"> <span class="tok-comment">// check we are not overwriting an existing chunk</span> </span> <span class="line" id="L204"> assert(link_tab[off] == <span class="tok-number">0</span>);</span> <span class="line" id="L205"> }</span> <span class="line" id="L206"> link_tab[off] = <span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, <span class="tok-builtin">@intCast</span>(chunk));</span> <span class="line" id="L207"> }</span> <span class="line" id="L208"> }</span> <span class="line" id="L209"> }</span> <span class="line" id="L210"></span> <span class="line" id="L211"> <span class="tok-kw">if</span> (sanity) {</span> <span class="line" id="L212"> <span class="tok-comment">// Above we've sanity checked that we never overwrote</span> </span> <span class="line" id="L213"> <span class="tok-comment">// an existing entry. Here we additionally check that</span> </span> <span class="line" id="L214"> <span class="tok-comment">// we filled the tables completely.</span> </span> <span class="line" id="L215"> <span class="tok-kw">for</span> (self.chunks, <span class="tok-number">0</span>..) \|chunk, i\| {</span> <span class="line" id="L216"> <span class="tok-comment">// As an exception, in the degenerate</span> </span> <span class="line" id="L217"> <span class="tok-comment">// single-code case, we allow odd</span> </span> <span class="line" id="L218"> <span class="tok-comment">// chunks to be missing.</span> </span> <span class="line" id="L219"> <span class="tok-kw">if</span> (code == <span class="tok-number">1</span> <span class="tok-kw">and</span> i % <span class="tok-number">2</span> == <span class="tok-number">1</span>) {</span> <span class="line" id="L220"> <span class="tok-kw">continue</span>;</span> <span class="line" id="L221"> }</span> <span class="line" id="L222"></span> <span class="line" id="L223"> <span class="tok-comment">// Assert we are not missing a chunk.</span> </span> <span class="line" id="L224"> <span class="tok-comment">// All chunks should have been written once</span> </span> <span class="line" id="L225"> <span class="tok-comment">// thus losing their initial value of 0</span> </span> <span class="line" id="L226"> assert(chunk != <span class="tok-number">0</span>);</span> <span class="line" id="L227"> }</span> <span class="line" id="L228"></span> <span class="line" id="L229"> <span class="tok-kw">if</span> (self.initialized) {</span> <span class="line" id="L230"> <span class="tok-kw">for</span> (self.links) \|link_tab\| {</span> <span class="line" id="L231"> <span class="tok-kw">for</span> (link_tab) \|chunk\| {</span> <span class="line" id="L232"> <span class="tok-comment">// Assert we are not missing a chunk.</span> </span> <span class="line" id="L233"> assert(chunk != <span class="tok-number">0</span>);</span> <span class="line" id="L234"> }</span> <span class="line" id="L235"> }</span> <span class="line" id="L236"> }</span> <span class="line" id="L237"> }</span> <span class="line" id="L238"></span> <span class="line" id="L239"> <span class="tok-kw">return</span> <span class="tok-null">true</span>;</span> <span class="line" id="L240"> }</span> <span class="line" id="L241"></span> <span class="line" id="L242"> <span class="tok-comment">/// Release all allocated memory.</span></span> <span class="line" id="L243"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">deinit</span>(self: Self) <span class="tok-type">void</span> {</span> <span class="line" id="L244"> <span class="tok-kw">if</span> (self.initialized <span class="tok-kw">and</span> self.links.len > <span class="tok-number">0</span>) {</span> <span class="line" id="L245"> <span class="tok-kw">for</span> (self.sub_chunks.items) \|off\| {</span> <span class="line" id="L246"> self.allocator.free(self.links[off]);</span> <span class="line" id="L247"> }</span> <span class="line" id="L248"> self.allocator.free(self.links);</span> <span class="line" id="L249"> self.sub_chunks.deinit();</span> <span class="line" id="L250"> self.initialized = <span class="tok-null">false</span>;</span> <span class="line" id="L251"> }</span> <span class="line" id="L252"> }</span> <span class="line" id="L253">};</span> <span class="line" id="L254"></span> <span class="line" id="L255"><span class="tok-kw">var</span> fixed_huffman_decoder: ?HuffmanDecoder = <span class="tok-null">null</span>;</span> <span class="line" id="L256"></span> <span class="line" id="L257"><span class="tok-kw">fn</span> <span class="tok-fn">fixedHuffmanDecoderInit</span>(allocator: Allocator) !HuffmanDecoder {</span> <span class="line" id="L258"> <span class="tok-kw">if</span> (fixed_huffman_decoder != <span class="tok-null">null</span>) {</span> <span class="line" id="L259"> <span class="tok-kw">return</span> fixed_huffman_decoder.?;</span> <span class="line" id="L260"> }</span> <span class="line" id="L261"></span> <span class="line" id="L262"> <span class="tok-comment">// These come from the RFC section 3.2.6.</span> </span> <span class="line" id="L263"> <span class="tok-kw">var</span> bits: [<span class="tok-number">288</span>]<span class="tok-type">u32</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L264"> <span class="tok-kw">var</span> i: <span class="tok-type">u32</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L265"> <span class="tok-kw">while</span> (i < <span class="tok-number">144</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L266"> bits[i] = <span class="tok-number">8</span>;</span> <span class="line" id="L267"> }</span> <span class="line" id="L268"> <span class="tok-kw">while</span> (i < <span class="tok-number">256</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L269"> bits[i] = <span class="tok-number">9</span>;</span> <span class="line" id="L270"> }</span> <span class="line" id="L271"> <span class="tok-kw">while</span> (i < <span class="tok-number">280</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L272"> bits[i] = <span class="tok-number">7</span>;</span> <span class="line" id="L273"> }</span> <span class="line" id="L274"> <span class="tok-kw">while</span> (i < <span class="tok-number">288</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L275"> bits[i] = <span class="tok-number">8</span>;</span> <span class="line" id="L276"> }</span> <span class="line" id="L277"></span> <span class="line" id="L278"> fixed_huffman_decoder = HuffmanDecoder{};</span> <span class="line" id="L279"> _ = <span class="tok-kw">try</span> fixed_huffman_decoder.?.init(allocator, &bits);</span> <span class="line" id="L280"> <span class="tok-kw">return</span> fixed_huffman_decoder.?;</span> <span class="line" id="L281">}</span> <span class="line" id="L282"></span> <span class="line" id="L283"><span class="tok-kw">const</span> DecompressorState = <span class="tok-kw">enum</span> {</span> <span class="line" id="L284"> init,</span> <span class="line" id="L285"> dict,</span> <span class="line" id="L286">};</span> <span class="line" id="L287"></span> <span class="line" id="L288"><span class="tok-comment">/// Returns a new Decompressor that can be used to read the uncompressed version of `reader`.</span></span> <span class="line" id="L289"><span class="tok-comment">/// `dictionary` is optional and initializes the Decompressor with a preset dictionary.</span></span> <span class="line" id="L290"><span class="tok-comment">/// The returned Decompressor behaves as if the uncompressed data stream started with the given</span></span> <span class="line" id="L291"><span class="tok-comment">/// dictionary, which has already been read. Use the same `dictionary` as the compressor used to</span></span> <span class="line" id="L292"><span class="tok-comment">/// compress the data.</span></span> <span class="line" id="L293"><span class="tok-comment">/// This decompressor may use at most 300 KiB of heap memory from the provided allocator.</span></span> <span class="line" id="L294"><span class="tok-comment">/// The uncompressed data will be written into the provided buffer, see `reader()` and `read()`.</span></span> <span class="line" id="L295"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">decompressor</span>(allocator: Allocator, reader: <span class="tok-kw">anytype</span>, dictionary: ?[]<span class="tok-kw">const</span> <span class="tok-type">u8</span>) !Decompressor(<span class="tok-builtin">@TypeOf</span>(reader)) {</span> <span class="line" id="L296"> <span class="tok-kw">return</span> Decompressor(<span class="tok-builtin">@TypeOf</span>(reader)).init(allocator, reader, dictionary);</span> <span class="line" id="L297">}</span> <span class="line" id="L298"></span> <span class="line" id="L299"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">Decompressor</span>(<span class="tok-kw">comptime</span> ReaderType: <span class="tok-type">type</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L300"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L301"> <span class="tok-kw">const</span> Self = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L302"></span> <span class="line" id="L303"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Error =</span> <span class="line" id="L304"> ReaderType.Error \|\|</span> <span class="line" id="L305"> <span class="tok-kw">error</span>{EndOfStream} \|\|</span> <span class="line" id="L306"> InflateError \|\|</span> <span class="line" id="L307"> Allocator.Error;</span> <span class="line" id="L308"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Reader = io.Reader(Self, Error, read);</span> <span class="line" id="L309"></span> <span class="line" id="L310"> allocator: Allocator,</span> <span class="line" id="L311"></span> <span class="line" id="L312"> <span class="tok-comment">// Input source.</span> </span> <span class="line" id="L313"> inner_reader: ReaderType,</span> <span class="line" id="L314"> roffset: <span class="tok-type">u64</span>,</span> <span class="line" id="L315"></span> <span class="line" id="L316"> <span class="tok-comment">// Input bits, in top of b.</span> </span> <span class="line" id="L317"> b: <span class="tok-type">u32</span>,</span> <span class="line" id="L318"> nb: <span class="tok-type">u32</span>,</span> <span class="line" id="L319"></span> <span class="line" id="L320"> <span class="tok-comment">// Huffman decoders for literal/length, distance.</span> </span> <span class="line" id="L321"> hd1: HuffmanDecoder,</span> <span class="line" id="L322"> hd2: HuffmanDecoder,</span> <span class="line" id="L323"></span> <span class="line" id="L324"> <span class="tok-comment">// Length arrays used to define Huffman codes.</span> </span> <span class="line" id="L325"> bits: [max_num_lit + max_num_dist]<span class="tok-type">u32</span>,</span> <span class="line" id="L326"> codebits: [num_codes]<span class="tok-type">u32</span>,</span> <span class="line" id="L327"></span> <span class="line" id="L328"> <span class="tok-comment">// Output history, buffer.</span> </span> <span class="line" id="L329"> dict: ddec.DictDecoder,</span> <span class="line" id="L330"></span> <span class="line" id="L331"> <span class="tok-comment">// Temporary buffer (avoids repeated allocation).</span> </span> <span class="line" id="L332"> buf: [<span class="tok-number">4</span>]<span class="tok-type">u8</span>,</span> <span class="line" id="L333"></span> <span class="line" id="L334"> <span class="tok-comment">// Next step in the decompression,</span> </span> <span class="line" id="L335"> <span class="tok-comment">// and decompression state.</span> </span> <span class="line" id="L336"> step: <span class="tok-kw">const</span> <span class="tok-kw">fn</span> (Self) Error!<span class="tok-type">void</span>,</span> <span class="line" id="L337"> step_state: DecompressorState,</span> <span class="line" id="L338"> final: <span class="tok-type">bool</span>,</span> <span class="line" id="L339"> err: ?Error,</span> <span class="line" id="L340"> to_read: []<span class="tok-type">u8</span>,</span> <span class="line" id="L341"> <span class="tok-comment">// Huffman states for the lit/length values</span> </span> <span class="line" id="L342"> hl: ?HuffmanDecoder,</span> <span class="line" id="L343"> <span class="tok-comment">// Huffman states for the distance values.</span> </span> <span class="line" id="L344"> hd: ?HuffmanDecoder,</span> <span class="line" id="L345"> copy_len: <span class="tok-type">u32</span>,</span> <span class="line" id="L346"> copy_dist: <span class="tok-type">u32</span>,</span> <span class="line" id="L347"></span> <span class="line" id="L348"> <span class="tok-comment">/// Returns a Reader that reads compressed data from an underlying reader and outputs</span></span> <span class="line" id="L349"> <span class="tok-comment">/// uncompressed data.</span></span> <span class="line" id="L350"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">reader</span>(self: Self) Reader {</span> <span class="line" id="L351"> <span class="tok-kw">return</span> .{ .context = self };</span> <span class="line" id="L352"> }</span> <span class="line" id="L353"></span> <span class="line" id="L354"> <span class="tok-kw">fn</span> <span class="tok-fn">init</span>(allocator: Allocator, in_reader: ReaderType, dict: ?[]<span class="tok-kw">const</span> <span class="tok-type">u8</span>) !Self {</span> <span class="line" id="L355"> fixed_huffman_decoder = <span class="tok-kw">try</span> fixedHuffmanDecoderInit(allocator);</span> <span class="line" id="L356"></span> <span class="line" id="L357"> <span class="tok-kw">var</span> bits = <span class="tok-kw">try</span> allocator.create([max_num_lit + max_num_dist]<span class="tok-type">u32</span>);</span> <span class="line" id="L358"> <span class="tok-kw">var</span> codebits = <span class="tok-kw">try</span> allocator.create([num_codes]<span class="tok-type">u32</span>);</span> <span class="line" id="L359"></span> <span class="line" id="L360"> <span class="tok-kw">var</span> dd = ddec.DictDecoder{};</span> <span class="line" id="L361"> <span class="tok-kw">try</span> dd.init(allocator, max_match_offset, dict);</span> <span class="line" id="L362"></span> <span class="line" id="L363"> <span class="tok-kw">return</span> Self{</span> <span class="line" id="L364"> .allocator = allocator,</span> <span class="line" id="L365"></span> <span class="line" id="L366"> <span class="tok-comment">// Input source.</span> </span> <span class="line" id="L367"> .inner_reader = in_reader,</span> <span class="line" id="L368"> .roffset = <span class="tok-number">0</span>,</span> <span class="line" id="L369"></span> <span class="line" id="L370"> <span class="tok-comment">// Input bits, in top of b.</span> </span> <span class="line" id="L371"> .b = <span class="tok-number">0</span>,</span> <span class="line" id="L372"> .nb = <span class="tok-number">0</span>,</span> <span class="line" id="L373"></span> <span class="line" id="L374"> <span class="tok-comment">// Huffman decoders for literal/length, distance.</span> </span> <span class="line" id="L375"> .hd1 = HuffmanDecoder{},</span> <span class="line" id="L376"> .hd2 = HuffmanDecoder{},</span> <span class="line" id="L377"></span> <span class="line" id="L378"> <span class="tok-comment">// Length arrays used to define Huffman codes.</span> </span> <span class="line" id="L379"> .bits = bits,</span> <span class="line" id="L380"> .codebits = codebits,</span> <span class="line" id="L381"></span> <span class="line" id="L382"> <span class="tok-comment">// Output history, buffer.</span> </span> <span class="line" id="L383"> .dict = dd,</span> <span class="line" id="L384"></span> <span class="line" id="L385"> <span class="tok-comment">// Temporary buffer (avoids repeated allocation).</span> </span> <span class="line" id="L386"> .buf = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} * <span class="tok-number">4</span>,</span> <span class="line" id="L387"></span> <span class="line" id="L388"> <span class="tok-comment">// Next step in the decompression and decompression state.</span> </span> <span class="line" id="L389"> .step = nextBlock,</span> <span class="line" id="L390"> .step_state = .init,</span> <span class="line" id="L391"> .final = <span class="tok-null">false</span>,</span> <span class="line" id="L392"> .err = <span class="tok-null">null</span>,</span> <span class="line" id="L393"> .to_read = &[<span class="tok-number">0</span>]<span class="tok-type">u8</span>{},</span> <span class="line" id="L394"> .hl = <span class="tok-null">null</span>,</span> <span class="line" id="L395"> .hd = <span class="tok-null">null</span>,</span> <span class="line" id="L396"> .copy_len = <span class="tok-number">0</span>,</span> <span class="line" id="L397"> .copy_dist = <span class="tok-number">0</span>,</span> <span class="line" id="L398"> };</span> <span class="line" id="L399"> }</span> <span class="line" id="L400"></span> <span class="line" id="L401"> <span class="tok-comment">/// Release all allocated memory.</span></span> <span class="line" id="L402"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">deinit</span>(self: Self) <span class="tok-type">void</span> {</span> <span class="line" id="L403"> self.hd2.deinit();</span> <span class="line" id="L404"> self.hd1.deinit();</span> <span class="line" id="L405"> self.dict.deinit();</span> <span class="line" id="L406"> self.allocator.destroy(self.codebits);</span> <span class="line" id="L407"> self.allocator.destroy(self.bits);</span> <span class="line" id="L408"> }</span> <span class="line" id="L409"></span> <span class="line" id="L410"> <span class="tok-kw">fn</span> <span class="tok-fn">nextBlock</span>(self: Self) Error!<span class="tok-type">void</span> {</span> <span class="line" id="L411"> <span class="tok-kw">while</span> (self.nb < <span class="tok-number">1</span> + <span class="tok-number">2</span>) {</span> <span class="line" id="L412"> self.moreBits() <span class="tok-kw">catch</span> \|e\| {</span> <span class="line" id="L413"> self.err = e;</span> <span class="line" id="L414"> <span class="tok-kw">return</span> e;</span> <span class="line" id="L415"> };</span> <span class="line" id="L416"> }</span> <span class="line" id="L417"> self.final = self.b & <span class="tok-number">1</span> == <span class="tok-number">1</span>;</span> <span class="line" id="L418"> self.b >>= <span class="tok-number">1</span>;</span> <span class="line" id="L419"> <span class="tok-kw">var</span> typ = self.b & <span class="tok-number">3</span>;</span> <span class="line" id="L420"> self.b >>= <span class="tok-number">2</span>;</span> <span class="line" id="L421"> self.nb -= <span class="tok-number">1</span> + <span class="tok-number">2</span>;</span> <span class="line" id="L422"> <span class="tok-kw">switch</span> (typ) {</span> <span class="line" id="L423"> <span class="tok-number">0</span> => <span class="tok-kw">try</span> self.dataBlock(),</span> <span class="line" id="L424"> <span class="tok-number">1</span> => {</span> <span class="line" id="L425"> <span class="tok-comment">// compressed, fixed Huffman tables</span> </span> <span class="line" id="L426"> self.hl = &fixed_huffman_decoder.?;</span> <span class="line" id="L427"> self.hd = <span class="tok-null">null</span>;</span> <span class="line" id="L428"> <span class="tok-kw">try</span> self.huffmanBlock();</span> <span class="line" id="L429"> },</span> <span class="line" id="L430"> <span class="tok-number">2</span> => {</span> <span class="line" id="L431"> <span class="tok-comment">// compressed, dynamic Huffman tables</span> </span> <span class="line" id="L432"> self.hd2.deinit();</span> <span class="line" id="L433"> self.hd1.deinit();</span> <span class="line" id="L434"> <span class="tok-kw">try</span> self.readHuffman();</span> <span class="line" id="L435"> self.hl = &self.hd1;</span> <span class="line" id="L436"> self.hd = &self.hd2;</span> <span class="line" id="L437"> <span class="tok-kw">try</span> self.huffmanBlock();</span> <span class="line" id="L438"> },</span> <span class="line" id="L439"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L440"> <span class="tok-comment">// 3 is reserved.</span> </span> <span class="line" id="L441"> corrupt_input_error_offset = self.roffset;</span> <span class="line" id="L442"> self.err = InflateError.CorruptInput;</span> <span class="line" id="L443"> <span class="tok-kw">return</span> InflateError.CorruptInput;</span> <span class="line" id="L444"> },</span> <span class="line" id="L445"> }</span> <span class="line" id="L446"> }</span> <span class="line" id="L447"></span> <span class="line" id="L448"> <span class="tok-comment">/// Reads compressed data from the underlying reader and outputs uncompressed data into</span></span> <span class="line" id="L449"> <span class="tok-comment">/// `output`.</span></span> <span class="line" id="L450"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">read</span>(self: Self, output: []<span class="tok-type">u8</span>) Error!<span class="tok-type">usize</span> {</span> <span class="line" id="L451"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L452"> <span class="tok-kw">if</span> (self.to_read.len > <span class="tok-number">0</span>) {</span> <span class="line" id="L453"> <span class="tok-kw">const</span> n = std.compress.deflate.copy(output, self.to_read);</span> <span class="line" id="L454"> self.to_read = self.to_read[n..];</span> <span class="line" id="L455"> <span class="tok-kw">if</span> (self.to_read.len == <span class="tok-number">0</span> <span class="tok-kw">and</span></span> <span class="line" id="L456"> self.err != <span class="tok-null">null</span>)</span> <span class="line" id="L457"> {</span> <span class="line" id="L458"> <span class="tok-kw">if</span> (self.err.? == InflateError.EndOfStreamWithNoError) {</span> <span class="line" id="L459"> <span class="tok-kw">return</span> n;</span> <span class="line" id="L460"> }</span> <span class="line" id="L461"> <span class="tok-kw">return</span> self.err.?;</span> <span class="line" id="L462"> }</span> <span class="line" id="L463"> <span class="tok-kw">return</span> n;</span> <span class="line" id="L464"> }</span> <span class="line" id="L465"> <span class="tok-kw">if</span> (self.err != <span class="tok-null">null</span>) {</span> <span class="line" id="L466"> <span class="tok-kw">if</span> (self.err.? == InflateError.EndOfStreamWithNoError) {</span> <span class="line" id="L467"> <span class="tok-kw">return</span> <span class="tok-number">0</span>;</span> <span class="line" id="L468"> }</span> <span class="line" id="L469"> <span class="tok-kw">return</span> self.err.?;</span> <span class="line" id="L470"> }</span> <span class="line" id="L471"> self.step(self) <span class="tok-kw">catch</span> \|e\| {</span> <span class="line" id="L472"> self.err = e;</span> <span class="line" id="L473"> <span class="tok-kw">if</span> (self.to_read.len == <span class="tok-number">0</span>) {</span> <span class="line" id="L474"> self.to_read = self.dict.readFlush(); <span class="tok-comment">// Flush what's left in case of error</span> </span> <span class="line" id="L475"> }</span> <span class="line" id="L476"> };</span> <span class="line" id="L477"> }</span> <span class="line" id="L478"> }</span> <span class="line" id="L479"></span> <span class="line" id="L480"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">close</span>(self: Self) ?Error {</span> <span class="line" id="L481"> <span class="tok-kw">if</span> (self.err == <span class="tok-builtin">@as</span>(?Error, <span class="tok-kw">error</span>.EndOfStreamWithNoError)) {</span> <span class="line" id="L482"> <span class="tok-kw">return</span> <span class="tok-null">null</span>;</span> <span class="line" id="L483"> }</span> <span class="line" id="L484"> <span class="tok-kw">return</span> self.err;</span> <span class="line" id="L485"> }</span> <span class="line" id="L486"></span> <span class="line" id="L487"> <span class="tok-comment">// RFC 1951 section 3.2.7.</span> </span> <span class="line" id="L488"> <span class="tok-comment">// Compression with dynamic Huffman codes</span> </span> <span class="line" id="L489"></span> <span class="line" id="L490"> <span class="tok-kw">const</span> code_order = [_]<span class="tok-type">u32</span>{ <span class="tok-number">16</span>, <span class="tok-number">17</span>, <span class="tok-number">18</span>, <span class="tok-number">0</span>, <span class="tok-number">8</span>, <span class="tok-number">7</span>, <span class="tok-number">9</span>, <span class="tok-number">6</span>, <span class="tok-number">10</span>, <span class="tok-number">5</span>, <span class="tok-number">11</span>, <span class="tok-number">4</span>, <span class="tok-number">12</span>, <span class="tok-number">3</span>, <span class="tok-number">13</span>, <span class="tok-number">2</span>, <span class="tok-number">14</span>, <span class="tok-number">1</span>, <span class="tok-number">15</span> };</span> <span class="line" id="L491"></span> <span class="line" id="L492"> <span class="tok-kw">fn</span> <span class="tok-fn">readHuffman</span>(self: Self) Error!<span class="tok-type">void</span> {</span> <span class="line" id="L493"> <span class="tok-comment">// HLIT[5], HDIST[5], HCLEN[4].</span> </span> <span class="line" id="L494"> <span class="tok-kw">while</span> (self.nb < <span class="tok-number">5</span> + <span class="tok-number">5</span> + <span class="tok-number">4</span>) {</span> <span class="line" id="L495"> <span class="tok-kw">try</span> self.moreBits();</span> <span class="line" id="L496"> }</span> <span class="line" id="L497"> <span class="tok-kw">var</span> nlit = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(self.b & <span class="tok-number">0x1F</span>)) + <span class="tok-number">257</span>;</span> <span class="line" id="L498"> <span class="tok-kw">if</span> (nlit > max_num_lit) {</span> <span class="line" id="L499"> corrupt_input_error_offset = self.roffset;</span> <span class="line" id="L500"> self.err = InflateError.CorruptInput;</span> <span class="line" id="L501"> <span class="tok-kw">return</span> InflateError.CorruptInput;</span> <span class="line" id="L502"> }</span> <span class="line" id="L503"> self.b >>= <span class="tok-number">5</span>;</span> <span class="line" id="L504"> <span class="tok-kw">var</span> ndist = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(self.b & <span class="tok-number">0x1F</span>)) + <span class="tok-number">1</span>;</span> <span class="line" id="L505"> <span class="tok-kw">if</span> (ndist > max_num_dist) {</span> <span class="line" id="L506"> corrupt_input_error_offset = self.roffset;</span> <span class="line" id="L507"> self.err = InflateError.CorruptInput;</span> <span class="line" id="L508"> <span class="tok-kw">return</span> InflateError.CorruptInput;</span> <span class="line" id="L509"> }</span> <span class="line" id="L510"> self.b >>= <span class="tok-number">5</span>;</span> <span class="line" id="L511"> <span class="tok-kw">var</span> nclen = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(self.b & <span class="tok-number">0xF</span>)) + <span class="tok-number">4</span>;</span> <span class="line" id="L512"> <span class="tok-comment">// num_codes is 19, so nclen is always valid.</span> </span> <span class="line" id="L513"> self.b >>= <span class="tok-number">4</span>;</span> <span class="line" id="L514"> self.nb -= <span class="tok-number">5</span> + <span class="tok-number">5</span> + <span class="tok-number">4</span>;</span> <span class="line" id="L515"></span> <span class="line" id="L516"> <span class="tok-comment">// (HCLEN+4)3 bits: code lengths in the magic code_order order.</span> </span> <span class="line" id="L517"> <span class="tok-kw">var</span> i: <span class="tok-type">u32</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L518"> <span class="tok-kw">while</span> (i < nclen) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L519"> <span class="tok-kw">while</span> (self.nb < <span class="tok-number">3</span>) {</span> <span class="line" id="L520"> <span class="tok-kw">try</span> self.moreBits();</span> <span class="line" id="L521"> }</span> <span class="line" id="L522"> self.codebits[code_order[i]] = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(self.b & <span class="tok-number">0x7</span>));</span> <span class="line" id="L523"> self.b >>= <span class="tok-number">3</span>;</span> <span class="line" id="L524"> self.nb -= <span class="tok-number">3</span>;</span> <span class="line" id="L525"> }</span> <span class="line" id="L526"> i = nclen;</span> <span class="line" id="L527"> <span class="tok-kw">while</span> (i < code_order.len) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L528"> self.codebits[code_order[i]] = <span class="tok-number">0</span>;</span> <span class="line" id="L529"> }</span> <span class="line" id="L530"> <span class="tok-kw">if</span> (!<span class="tok-kw">try</span> self.hd1.init(self.allocator, self.codebits[<span class="tok-number">0</span>..])) {</span> <span class="line" id="L531"> corrupt_input_error_offset = self.roffset;</span> <span class="line" id="L532"> self.err = InflateError.CorruptInput;</span> <span class="line" id="L533"> <span class="tok-kw">return</span> InflateError.CorruptInput;</span> <span class="line" id="L534"> }</span> <span class="line" id="L535"></span> <span class="line" id="L536"> <span class="tok-comment">// HLIT + 257 code lengths, HDIST + 1 code lengths,</span> </span> <span class="line" id="L537"> <span class="tok-comment">// using the code length Huffman code.</span> </span> <span class="line" id="L538"> i = <span class="tok-number">0</span>;</span> <span class="line" id="L539"> <span class="tok-kw">var</span> n = nlit + ndist;</span> <span class="line" id="L540"> <span class="tok-kw">while</span> (i < n) {</span> <span class="line" id="L541"> <span class="tok-kw">var</span> x = <span class="tok-kw">try</span> self.huffSym(&self.hd1);</span> <span class="line" id="L542"> <span class="tok-kw">if</span> (x < <span class="tok-number">16</span>) {</span> <span class="line" id="L543"> <span class="tok-comment">// Actual length.</span> </span> <span class="line" id="L544"> self.bits[i] = x;</span> <span class="line" id="L545"> i += <span class="tok-number">1</span>;</span> <span class="line" id="L546"> <span class="tok-kw">continue</span>;</span> <span class="line" id="L547"> }</span> <span class="line" id="L548"> <span class="tok-comment">// Repeat previous length or zero.</span> </span> <span class="line" id="L549"> <span class="tok-kw">var</span> rep: <span class="tok-type">u32</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L550"> <span class="tok-kw">var</span> nb: <span class="tok-type">u32</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L551"> <span class="tok-kw">var</span> b: <span class="tok-type">u32</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L552"> <span class="tok-kw">switch</span> (x) {</span> <span class="line" id="L553"> <span class="tok-number">16</span> => {</span> <span class="line" id="L554"> rep = <span class="tok-number">3</span>;</span> <span class="line" id="L555"> nb = <span class="tok-number">2</span>;</span> <span class="line" id="L556"> <span class="tok-kw">if</span> (i == <span class="tok-number">0</span>) {</span> <span class="line" id="L557"> corrupt_input_error_offset = self.roffset;</span> <span class="line" id="L558"> self.err = InflateError.CorruptInput;</span> <span class="line" id="L559"> <span class="tok-kw">return</span> InflateError.CorruptInput;</span> <span class="line" id="L560"> }</span> <span class="line" id="L561"> b = self.bits[i - <span class="tok-number">1</span>];</span> <span class="line" id="L562"> },</span> <span class="line" id="L563"> <span class="tok-number">17</span> => {</span> <span class="line" id="L564"> rep = <span class="tok-number">3</span>;</span> <span class="line" id="L565"> nb = <span class="tok-number">3</span>;</span> <span class="line" id="L566"> b = <span class="tok-number">0</span>;</span> <span class="line" id="L567"> },</span> <span class="line" id="L568"> <span class="tok-number">18</span> => {</span> <span class="line" id="L569"> rep = <span class="tok-number">11</span>;</span> <span class="line" id="L570"> nb = <span class="tok-number">7</span>;</span> <span class="line" id="L571"> b = <span class="tok-number">0</span>;</span> <span class="line" id="L572"> },</span> <span class="line" id="L573"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.BadInternalState, <span class="tok-comment">// unexpected length code</span> </span> <span class="line" id="L574"> }</span> <span class="line" id="L575"> <span class="tok-kw">while</span> (self.nb < nb) {</span> <span class="line" id="L576"> <span class="tok-kw">try</span> self.moreBits();</span> <span class="line" id="L577"> }</span> <span class="line" id="L578"> rep += <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(self.b & (<span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-number">1</span>) << <span class="tok-builtin">@as</span>(<span class="tok-type">u5</span>, <span class="tok-builtin">@intCast</span>(nb))) - <span class="tok-number">1</span>));</span> <span class="line" id="L579"> self.b >>= <span class="tok-builtin">@as</span>(<span class="tok-type">u5</span>, <span class="tok-builtin">@intCast</span>(nb));</span> <span class="line" id="L580"> self.nb -= nb;</span> <span class="line" id="L581"> <span class="tok-kw">if</span> (i + rep > n) {</span> <span class="line" id="L582"> corrupt_input_error_offset = self.roffset;</span> <span class="line" id="L583"> self.err = InflateError.CorruptInput;</span> <span class="line" id="L584"> <span class="tok-kw">return</span> InflateError.CorruptInput;</span> <span class="line" id="L585"> }</span> <span class="line" id="L586"> <span class="tok-kw">var</span> j: <span class="tok-type">u32</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L587"> <span class="tok-kw">while</span> (j < rep) : (j += <span class="tok-number">1</span>) {</span> <span class="line" id="L588"> self.bits[i] = b;</span> <span class="line" id="L589"> i += <span class="tok-number">1</span>;</span> <span class="line" id="L590"> }</span> <span class="line" id="L591"> }</span> <span class="line" id="L592"></span> <span class="line" id="L593"> <span class="tok-kw">if</span> (!<span class="tok-kw">try</span> self.hd1.init(self.allocator, self.bits[<span class="tok-number">0</span>..nlit]) <span class="tok-kw">or</span></span> <span class="line" id="L594"> !<span class="tok-kw">try</span> self.hd2.init(self.allocator, self.bits[nlit..][<span class="tok-number">0</span>..ndist]))</span> <span class="line" id="L595"> {</span> <span class="line" id="L596"> corrupt_input_error_offset = self.roffset;</span> <span class="line" id="L597"> self.err = InflateError.CorruptInput;</span> <span class="line" id="L598"> <span class="tok-kw">return</span> InflateError.CorruptInput;</span> <span class="line" id="L599"> }</span> <span class="line" id="L600"></span> <span class="line" id="L601"> <span class="tok-comment">// As an optimization, we can initialize the min bits to read at a time</span> </span> <span class="line" id="L602"> <span class="tok-comment">// for the HLIT tree to the length of the EOB marker since we know that</span> </span> <span class="line" id="L603"> <span class="tok-comment">// every block must terminate with one. This preserves the property that</span> </span> <span class="line" id="L604"> <span class="tok-comment">// we never read any extra bytes after the end of the DEFLATE stream.</span> </span> <span class="line" id="L605"> <span class="tok-kw">if</span> (self.hd1.min < self.bits[end_block_marker]) {</span> <span class="line" id="L606"> self.hd1.min = self.bits[end_block_marker];</span> <span class="line" id="L607"> }</span> <span class="line" id="L608"></span> <span class="line" id="L609"> <span class="tok-kw">return</span>;</span> <span class="line" id="L610"> }</span> <span class="line" id="L611"></span> <span class="line" id="L612"> <span class="tok-comment">// Decode a single Huffman block.</span> </span> <span class="line" id="L613"> <span class="tok-comment">// hl and hd are the Huffman states for the lit/length values</span> </span> <span class="line" id="L614"> <span class="tok-comment">// and the distance values, respectively. If hd == null, using the</span> </span> <span class="line" id="L615"> <span class="tok-comment">// fixed distance encoding associated with fixed Huffman blocks.</span> </span> <span class="line" id="L616"> <span class="tok-kw">fn</span> <span class="tok-fn">huffmanBlock</span>(self: Self) Error!<span class="tok-type">void</span> {</span> <span class="line" id="L617"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L618"> <span class="tok-kw">switch</span> (self.step_state) {</span> <span class="line" id="L619"> .init => {</span> <span class="line" id="L620"> <span class="tok-comment">// Read literal and/or (length, distance) according to RFC section 3.2.3.</span> </span> <span class="line" id="L621"> <span class="tok-kw">var</span> v = <span class="tok-kw">try</span> self.huffSym(self.hl.?);</span> <span class="line" id="L622"> <span class="tok-kw">var</span> n: <span class="tok-type">u32</span> = <span class="tok-number">0</span>; <span class="tok-comment">// number of bits extra</span> </span> <span class="line" id="L623"> <span class="tok-kw">var</span> length: <span class="tok-type">u32</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L624"> <span class="tok-kw">switch</span> (v) {</span> <span class="line" id="L625"> <span class="tok-number">0</span>...<span class="tok-number">255</span> => {</span> <span class="line" id="L626"> self.dict.writeByte(<span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>(v)));</span> <span class="line" id="L627"> <span class="tok-kw">if</span> (self.dict.availWrite() == <span class="tok-number">0</span>) {</span> <span class="line" id="L628"> self.to_read = self.dict.readFlush();</span> <span class="line" id="L629"> self.step = huffmanBlock;</span> <span class="line" id="L630"> self.step_state = .init;</span> <span class="line" id="L631"> <span class="tok-kw">return</span>;</span> <span class="line" id="L632"> }</span> <span class="line" id="L633"> self.step_state = .init;</span> <span class="line" id="L634"> <span class="tok-kw">continue</span>;</span> <span class="line" id="L635"> },</span> <span class="line" id="L636"> <span class="tok-number">256</span> => {</span> <span class="line" id="L637"> self.finishBlock();</span> <span class="line" id="L638"> <span class="tok-kw">return</span>;</span> <span class="line" id="L639"> },</span> <span class="line" id="L640"> <span class="tok-comment">// otherwise, reference to older data</span> </span> <span class="line" id="L641"> <span class="tok-number">257</span>...<span class="tok-number">264</span> => {</span> <span class="line" id="L642"> length = v - (<span class="tok-number">257</span> - <span class="tok-number">3</span>);</span> <span class="line" id="L643"> n = <span class="tok-number">0</span>;</span> <span class="line" id="L644"> },</span> <span class="line" id="L645"> <span class="tok-number">265</span>...<span class="tok-number">268</span> => {</span> <span class="line" id="L646"> length = v <span class="tok-number">2</span> - (<span class="tok-number">265</span> * <span class="tok-number">2</span> - <span class="tok-number">11</span>);</span> <span class="line" id="L647"> n = <span class="tok-number">1</span>;</span> <span class="line" id="L648"> },</span> <span class="line" id="L649"> <span class="tok-number">269</span>...<span class="tok-number">272</span> => {</span> <span class="line" id="L650"> length = v * <span class="tok-number">4</span> - (<span class="tok-number">269</span> * <span class="tok-number">4</span> - <span class="tok-number">19</span>);</span> <span class="line" id="L651"> n = <span class="tok-number">2</span>;</span> <span class="line" id="L652"> },</span> <span class="line" id="L653"> <span class="tok-number">273</span>...<span class="tok-number">276</span> => {</span> <span class="line" id="L654"> length = v * <span class="tok-number">8</span> - (<span class="tok-number">273</span> * <span class="tok-number">8</span> - <span class="tok-number">35</span>);</span> <span class="line" id="L655"> n = <span class="tok-number">3</span>;</span> <span class="line" id="L656"> },</span> <span class="line" id="L657"> <span class="tok-number">277</span>...<span class="tok-number">280</span> => {</span> <span class="line" id="L658"> length = v * <span class="tok-number">16</span> - (<span class="tok-number">277</span> * <span class="tok-number">16</span> - <span class="tok-number">67</span>);</span> <span class="line" id="L659"> n = <span class="tok-number">4</span>;</span> <span class="line" id="L660"> },</span> <span class="line" id="L661"> <span class="tok-number">281</span>...<span class="tok-number">284</span> => {</span> <span class="line" id="L662"> length = v * <span class="tok-number">32</span> - (<span class="tok-number">281</span> * <span class="tok-number">32</span> - <span class="tok-number">131</span>);</span> <span class="line" id="L663"> n = <span class="tok-number">5</span>;</span> <span class="line" id="L664"> },</span> <span class="line" id="L665"> max_num_lit - <span class="tok-number">1</span> => { <span class="tok-comment">// 285</span> </span> <span class="line" id="L666"> length = <span class="tok-number">258</span>;</span> <span class="line" id="L667"> n = <span class="tok-number">0</span>;</span> <span class="line" id="L668"> },</span> <span class="line" id="L669"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L670"> corrupt_input_error_offset = self.roffset;</span> <span class="line" id="L671"> self.err = InflateError.CorruptInput;</span> <span class="line" id="L672"> <span class="tok-kw">return</span> InflateError.CorruptInput;</span> <span class="line" id="L673"> },</span> <span class="line" id="L674"> }</span> <span class="line" id="L675"> <span class="tok-kw">if</span> (n > <span class="tok-number">0</span>) {</span> <span class="line" id="L676"> <span class="tok-kw">while</span> (self.nb < n) {</span> <span class="line" id="L677"> <span class="tok-kw">try</span> self.moreBits();</span> <span class="line" id="L678"> }</span> <span class="line" id="L679"> length += <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(self.b)) & ((<span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-number">1</span>) << <span class="tok-builtin">@as</span>(<span class="tok-type">u5</span>, <span class="tok-builtin">@intCast</span>(n))) - <span class="tok-number">1</span>);</span> <span class="line" id="L680"> self.b >>= <span class="tok-builtin">@as</span>(<span class="tok-type">u5</span>, <span class="tok-builtin">@intCast</span>(n));</span> <span class="line" id="L681"> self.nb -= n;</span> <span class="line" id="L682"> }</span> <span class="line" id="L683"></span> <span class="line" id="L684"> <span class="tok-kw">var</span> dist: <span class="tok-type">u32</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L685"> <span class="tok-kw">if</span> (self.hd == <span class="tok-null">null</span>) {</span> <span class="line" id="L686"> <span class="tok-kw">while</span> (self.nb < <span class="tok-number">5</span>) {</span> <span class="line" id="L687"> <span class="tok-kw">try</span> self.moreBits();</span> <span class="line" id="L688"> }</span> <span class="line" id="L689"> dist = <span class="tok-builtin">@as</span>(</span> <span class="line" id="L690"> <span class="tok-type">u32</span>,</span> <span class="line" id="L691"> <span class="tok-builtin">@intCast</span>(bu.bitReverse(<span class="tok-type">u8</span>, <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>((self.b & <span class="tok-number">0x1F</span>) << <span class="tok-number">3</span>)), <span class="tok-number">8</span>)),</span> <span class="line" id="L692"> );</span> <span class="line" id="L693"> self.b >>= <span class="tok-number">5</span>;</span> <span class="line" id="L694"> self.nb -= <span class="tok-number">5</span>;</span> <span class="line" id="L695"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L696"> dist = <span class="tok-kw">try</span> self.huffSym(self.hd.?);</span> <span class="line" id="L697"> }</span> <span class="line" id="L698"></span> <span class="line" id="L699"> <span class="tok-kw">switch</span> (dist) {</span> <span class="line" id="L700"> <span class="tok-number">0</span>...<span class="tok-number">3</span> => dist += <span class="tok-number">1</span>,</span> <span class="line" id="L701"> <span class="tok-number">4</span>...max_num_dist - <span class="tok-number">1</span> => { <span class="tok-comment">// 4...29</span> </span> <span class="line" id="L702"> <span class="tok-kw">var</span> nb = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(dist - <span class="tok-number">2</span>)) >> <span class="tok-number">1</span>;</span> <span class="line" id="L703"> <span class="tok-comment">// have 1 bit in bottom of dist, need nb more.</span> </span> <span class="line" id="L704"> <span class="tok-kw">var</span> extra = (dist & <span class="tok-number">1</span>) << <span class="tok-builtin">@as</span>(<span class="tok-type">u5</span>, <span class="tok-builtin">@intCast</span>(nb));</span> <span class="line" id="L705"> <span class="tok-kw">while</span> (self.nb < nb) {</span> <span class="line" id="L706"> <span class="tok-kw">try</span> self.moreBits();</span> <span class="line" id="L707"> }</span> <span class="line" id="L708"> extra \|= <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(self.b & (<span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-number">1</span>) << <span class="tok-builtin">@as</span>(<span class="tok-type">u5</span>, <span class="tok-builtin">@intCast</span>(nb))) - <span class="tok-number">1</span>));</span> <span class="line" id="L709"> self.b >>= <span class="tok-builtin">@as</span>(<span class="tok-type">u5</span>, <span class="tok-builtin">@intCast</span>(nb));</span> <span class="line" id="L710"> self.nb -= nb;</span> <span class="line" id="L711"> dist = (<span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-number">1</span>) << <span class="tok-builtin">@as</span>(<span class="tok-type">u5</span>, <span class="tok-builtin">@intCast</span>(nb + <span class="tok-number">1</span>))) + <span class="tok-number">1</span> + extra;</span> <span class="line" id="L712"> },</span> <span class="line" id="L713"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L714"> corrupt_input_error_offset = self.roffset;</span> <span class="line" id="L715"> self.err = InflateError.CorruptInput;</span> <span class="line" id="L716"> <span class="tok-kw">return</span> InflateError.CorruptInput;</span> <span class="line" id="L717"> },</span> <span class="line" id="L718"> }</span> <span class="line" id="L719"></span> <span class="line" id="L720"> <span class="tok-comment">// No check on length; encoding can be prescient.</span> </span> <span class="line" id="L721"> <span class="tok-kw">if</span> (dist > self.dict.histSize()) {</span> <span class="line" id="L722"> corrupt_input_error_offset = self.roffset;</span> <span class="line" id="L723"> self.err = InflateError.CorruptInput;</span> <span class="line" id="L724"> <span class="tok-kw">return</span> InflateError.CorruptInput;</span> <span class="line" id="L725"> }</span> <span class="line" id="L726"></span> <span class="line" id="L727"> self.copy_len = length;</span> <span class="line" id="L728"> self.copy_dist = dist;</span> <span class="line" id="L729"> self.step_state = .dict;</span> <span class="line" id="L730"> },</span> <span class="line" id="L731"></span> <span class="line" id="L732"> .dict => {</span> <span class="line" id="L733"> <span class="tok-comment">// Perform a backwards copy according to RFC section 3.2.3.</span> </span> <span class="line" id="L734"> <span class="tok-kw">var</span> cnt = self.dict.tryWriteCopy(self.copy_dist, self.copy_len);</span> <span class="line" id="L735"> <span class="tok-kw">if</span> (cnt == <span class="tok-number">0</span>) {</span> <span class="line" id="L736"> cnt = self.dict.writeCopy(self.copy_dist, self.copy_len);</span> <span class="line" id="L737"> }</span> <span class="line" id="L738"> self.copy_len -= cnt;</span> <span class="line" id="L739"></span> <span class="line" id="L740"> <span class="tok-kw">if</span> (self.dict.availWrite() == <span class="tok-number">0</span> <span class="tok-kw">or</span> self.copy_len > <span class="tok-number">0</span>) {</span> <span class="line" id="L741"> self.to_read = self.dict.readFlush();</span> <span class="line" id="L742"> self.step = huffmanBlock; <span class="tok-comment">// We need to continue this work</span> </span> <span class="line" id="L743"> self.step_state = .dict;</span> <span class="line" id="L744"> <span class="tok-kw">return</span>;</span> <span class="line" id="L745"> }</span> <span class="line" id="L746"> self.step_state = .init;</span> <span class="line" id="L747"> },</span> <span class="line" id="L748"> }</span> <span class="line" id="L749"> }</span> <span class="line" id="L750"> }</span> <span class="line" id="L751"></span> <span class="line" id="L752"> <span class="tok-comment">// Copy a single uncompressed data block from input to output.</span> </span> <span class="line" id="L753"> <span class="tok-kw">fn</span> <span class="tok-fn">dataBlock</span>(self: Self) Error!<span class="tok-type">void</span> {</span> <span class="line" id="L754"> <span class="tok-comment">// Uncompressed.</span> </span> <span class="line" id="L755"> <span class="tok-comment">// Discard current half-byte.</span> </span> <span class="line" id="L756"> self.nb = <span class="tok-number">0</span>;</span> <span class="line" id="L757"> self.b = <span class="tok-number">0</span>;</span> <span class="line" id="L758"></span> <span class="line" id="L759"> <span class="tok-comment">// Length then ones-complement of length.</span> </span> <span class="line" id="L760"> <span class="tok-kw">var</span> nr: <span class="tok-type">u32</span> = <span class="tok-number">4</span>;</span> <span class="line" id="L761"> self.inner_reader.readNoEof(self.buf[<span class="tok-number">0</span>..nr]) <span class="tok-kw">catch</span> {</span> <span class="line" id="L762"> self.err = InflateError.UnexpectedEndOfStream;</span> <span class="line" id="L763"> <span class="tok-kw">return</span> InflateError.UnexpectedEndOfStream;</span> <span class="line" id="L764"> };</span> <span class="line" id="L765"> self.roffset += <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@intCast</span>(nr));</span> <span class="line" id="L766"> <span class="tok-kw">var</span> n = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(self.buf[<span class="tok-number">0</span>])) \| <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(self.buf[<span class="tok-number">1</span>])) << <span class="tok-number">8</span>;</span> <span class="line" id="L767"> <span class="tok-kw">var</span> nn = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(self.buf[<span class="tok-number">2</span>])) \| <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(self.buf[<span class="tok-number">3</span>])) << <span class="tok-number">8</span>;</span> <span class="line" id="L768"> <span class="tok-kw">if</span> (<span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, <span class="tok-builtin">@intCast</span>(nn)) != <span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, <span class="tok-builtin">@truncate</span>(~n))) {</span> <span class="line" id="L769"> corrupt_input_error_offset = self.roffset;</span> <span class="line" id="L770"> self.err = InflateError.CorruptInput;</span> <span class="line" id="L771"> <span class="tok-kw">return</span> InflateError.CorruptInput;</span> <span class="line" id="L772"> }</span> <span class="line" id="L773"></span> <span class="line" id="L774"> <span class="tok-kw">if</span> (n == <span class="tok-number">0</span>) {</span> <span class="line" id="L775"> self.to_read = self.dict.readFlush();</span> <span class="line" id="L776"> self.finishBlock();</span> <span class="line" id="L777"> <span class="tok-kw">return</span>;</span> <span class="line" id="L778"> }</span> <span class="line" id="L779"></span> <span class="line" id="L780"> self.copy_len = n;</span> <span class="line" id="L781"> <span class="tok-kw">try</span> self.copyData();</span> <span class="line" id="L782"> }</span> <span class="line" id="L783"></span> <span class="line" id="L784"> <span class="tok-comment">// copyData copies self.copy_len bytes from the underlying reader into self.hist.</span> </span> <span class="line" id="L785"> <span class="tok-comment">// It pauses for reads when self.hist is full.</span> </span> <span class="line" id="L786"> <span class="tok-kw">fn</span> <span class="tok-fn">copyData</span>(self: Self) Error!<span class="tok-type">void</span> {</span> <span class="line" id="L787"> <span class="tok-kw">var</span> buf = self.dict.writeSlice();</span> <span class="line" id="L788"> <span class="tok-kw">if</span> (buf.len > self.copy_len) {</span> <span class="line" id="L789"> buf = buf[<span class="tok-number">0</span>..self.copy_len];</span> <span class="line" id="L790"> }</span> <span class="line" id="L791"></span> <span class="line" id="L792"> <span class="tok-kw">var</span> cnt = <span class="tok-kw">try</span> self.inner_reader.read(buf);</span> <span class="line" id="L793"> <span class="tok-kw">if</span> (cnt < buf.len) {</span> <span class="line" id="L794"> self.err = InflateError.UnexpectedEndOfStream;</span> <span class="line" id="L795"> }</span> <span class="line" id="L796"> self.roffset += <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@intCast</span>(cnt));</span> <span class="line" id="L797"> self.copy_len -= <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(cnt));</span> <span class="line" id="L798"> self.dict.writeMark(<span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(cnt)));</span> <span class="line" id="L799"> <span class="tok-kw">if</span> (self.err != <span class="tok-null">null</span>) {</span> <span class="line" id="L800"> <span class="tok-kw">return</span> InflateError.UnexpectedEndOfStream;</span> <span class="line" id="L801"> }</span> <span class="line" id="L802"></span> <span class="line" id="L803"> <span class="tok-kw">if</span> (self.dict.availWrite() == <span class="tok-number">0</span> <span class="tok-kw">or</span> self.copy_len > <span class="tok-number">0</span>) {</span> <span class="line" id="L804"> self.to_read = self.dict.readFlush();</span> <span class="line" id="L805"> self.step = copyData;</span> <span class="line" id="L806"> <span class="tok-kw">return</span>;</span> <span class="line" id="L807"> }</span> <span class="line" id="L808"> self.finishBlock();</span> <span class="line" id="L809"> }</span> <span class="line" id="L810"></span> <span class="line" id="L811"> <span class="tok-kw">fn</span> <span class="tok-fn">finishBlock</span>(self: Self) <span class="tok-type">void</span> {</span> <span class="line" id="L812"> <span class="tok-kw">if</span> (self.final) {</span> <span class="line" id="L813"> <span class="tok-kw">if</span> (self.dict.availRead() > <span class="tok-number">0</span>) {</span> <span class="line" id="L814"> self.to_read = self.dict.readFlush();</span> <span class="line" id="L815"> }</span> <span class="line" id="L816"> self.err = InflateError.EndOfStreamWithNoError;</span> <span class="line" id="L817"> }</span> <span class="line" id="L818"> self.step = nextBlock;</span> <span class="line" id="L819"> }</span> <span class="line" id="L820"></span> <span class="line" id="L821"> <span class="tok-kw">fn</span> <span class="tok-fn">moreBits</span>(self: Self) InflateError!<span class="tok-type">void</span> {</span> <span class="line" id="L822"> <span class="tok-kw">var</span> c = self.inner_reader.readByte() <span class="tok-kw">catch</span> \|e\| {</span> <span class="line" id="L823"> <span class="tok-kw">if</span> (e == <span class="tok-kw">error</span>.EndOfStream) {</span> <span class="line" id="L824"> <span class="tok-kw">return</span> InflateError.UnexpectedEndOfStream;</span> <span class="line" id="L825"> }</span> <span class="line" id="L826"> <span class="tok-kw">return</span> InflateError.BadReaderState;</span> <span class="line" id="L827"> };</span> <span class="line" id="L828"> self.roffset += <span class="tok-number">1</span>;</span> <span class="line" id="L829"> self.b \|= <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, c) << <span class="tok-builtin">@as</span>(<span class="tok-type">u5</span>, <span class="tok-builtin">@intCast</span>(self.nb));</span> <span class="line" id="L830"> self.nb += <span class="tok-number">8</span>;</span> <span class="line" id="L831"> <span class="tok-kw">return</span>;</span> <span class="line" id="L832"> }</span> <span class="line" id="L833"></span> <span class="line" id="L834"> <span class="tok-comment">// Read the next Huffman-encoded symbol according to h.</span> </span> <span class="line" id="L835"> <span class="tok-kw">fn</span> <span class="tok-fn">huffSym</span>(self: Self, h: HuffmanDecoder) InflateError!<span class="tok-type">u32</span> {</span> <span class="line" id="L836"> <span class="tok-comment">// Since a HuffmanDecoder can be empty or be composed of a degenerate tree</span> </span> <span class="line" id="L837"> <span class="tok-comment">// with single element, huffSym must error on these two edge cases. In both</span> </span> <span class="line" id="L838"> <span class="tok-comment">// cases, the chunks slice will be 0 for the invalid sequence, leading it</span> </span> <span class="line" id="L839"> <span class="tok-comment">// satisfy the n == 0 check below.</span> </span> <span class="line" id="L840"> <span class="tok-kw">var</span> n: <span class="tok-type">u32</span> = h.min;</span> <span class="line" id="L841"> <span class="tok-comment">// Optimization. Go compiler isn't smart enough to keep self.b, self.nb in registers,</span> </span> <span class="line" id="L842"> <span class="tok-comment">// but is smart enough to keep local variables in registers, so use nb and b,</span> </span> <span class="line" id="L843"> <span class="tok-comment">// inline call to moreBits and reassign b, nb back to self on return.</span> </span> <span class="line" id="L844"> <span class="tok-kw">var</span> nb = self.nb;</span> <span class="line" id="L845"> <span class="tok-kw">var</span> b = self.b;</span> <span class="line" id="L846"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L847"> <span class="tok-kw">while</span> (nb < n) {</span> <span class="line" id="L848"> <span class="tok-kw">var</span> c = self.inner_reader.readByte() <span class="tok-kw">catch</span> \|e\| {</span> <span class="line" id="L849"> self.b = b;</span> <span class="line" id="L850"> self.nb = nb;</span> <span class="line" id="L851"> <span class="tok-kw">if</span> (e == <span class="tok-kw">error</span>.EndOfStream) {</span> <span class="line" id="L852"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnexpectedEndOfStream;</span> <span class="line" id="L853"> }</span> <span class="line" id="L854"> <span class="tok-kw">return</span> InflateError.BadReaderState;</span> <span class="line" id="L855"> };</span> <span class="line" id="L856"> self.roffset += <span class="tok-number">1</span>;</span> <span class="line" id="L857"> b \|= <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(c)) << <span class="tok-builtin">@as</span>(<span class="tok-type">u5</span>, <span class="tok-builtin">@intCast</span>(nb & <span class="tok-number">31</span>));</span> <span class="line" id="L858"> nb += <span class="tok-number">8</span>;</span> <span class="line" id="L859"> }</span> <span class="line" id="L860"> <span class="tok-kw">var</span> chunk = h.chunks[b & (huffman_num_chunks - <span class="tok-number">1</span>)];</span> <span class="line" id="L861"> n = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(chunk & huffman_count_mask));</span> <span class="line" id="L862"> <span class="tok-kw">if</span> (n > huffman_chunk_bits) {</span> <span class="line" id="L863"> chunk = h.links[chunk >> huffman_value_shift][(b >> huffman_chunk_bits) & h.link_mask];</span> <span class="line" id="L864"> n = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(chunk & huffman_count_mask));</span> <span class="line" id="L865"> }</span> <span class="line" id="L866"> <span class="tok-kw">if</span> (n <= nb) {</span> <span class="line" id="L867"> <span class="tok-kw">if</span> (n == <span class="tok-number">0</span>) {</span> <span class="line" id="L868"> self.b = b;</span> <span class="line" id="L869"> self.nb = nb;</span> <span class="line" id="L870"> corrupt_input_error_offset = self.roffset;</span> <span class="line" id="L871"> self.err = InflateError.CorruptInput;</span> <span class="line" id="L872"> <span class="tok-kw">return</span> InflateError.CorruptInput;</span> <span class="line" id="L873"> }</span> <span class="line" id="L874"> self.b = b >> <span class="tok-builtin">@as</span>(<span class="tok-type">u5</span>, <span class="tok-builtin">@intCast</span>(n & <span class="tok-number">31</span>));</span> <span class="line" id="L875"> self.nb = nb - n;</span> <span class="line" id="L876"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(chunk >> huffman_value_shift));</span> <span class="line" id="L877"> }</span> <span class="line" id="L878"> }</span> <span class="line" id="L879"> }</span> <span class="line" id="L880"></span> <span class="line" id="L881"> <span class="tok-comment">/// Replaces the inner reader and dictionary with new_reader and new_dict.</span></span> <span class="line" id="L882"> <span class="tok-comment">/// new_reader must be of the same type as the reader being replaced.</span></span> <span class="line" id="L883"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">reset</span>(s: Self, new_reader: ReaderType, new_dict: ?[]<span class="tok-kw">const</span> <span class="tok-type">u8</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L884"> s.inner_reader = new_reader;</span> <span class="line" id="L885"> s.step = nextBlock;</span> <span class="line" id="L886"> s.err = <span class="tok-null">null</span>;</span> <span class="line" id="L887"></span> <span class="line" id="L888"> s.dict.deinit();</span> <span class="line" id="L889"> <span class="tok-kw">try</span> s.dict.init(s.allocator, max_match_offset, new_dict);</span> <span class="line" id="L890"></span> <span class="line" id="L891"> <span class="tok-kw">return</span>;</span> <span class="line" id="L892"> }</span> <span class="line" id="L893"> };</span> <span class="line" id="L894">}</span> <span class="line" id="L895"></span> <span class="line" id="L896"><span class="tok-comment">// tests</span> </span> <span class="line" id="L897"><span class="tok-kw">const</span> expectError = std.testing.expectError;</span> <span class="line" id="L898"><span class="tok-kw">const</span> io = std.io;</span> <span class="line" id="L899"><span class="tok-kw">const</span> testing = std.testing;</span> <span class="line" id="L900"></span> <span class="line" id="L901"><span class="tok-kw">test</span> <span class="tok-str">"truncated input"</span> {</span> <span class="line" id="L902"> <span class="tok-kw">const</span> TruncatedTest = <span class="tok-kw">struct</span> {</span> <span class="line" id="L903"> input: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L904"> output: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L905"> };</span> <span class="line" id="L906"></span> <span class="line" id="L907"> <span class="tok-kw">const</span> tests = [_]TruncatedTest{</span> <span class="line" id="L908"> .{ .input = <span class="tok-str">"\x00"</span>, .output = <span class="tok-str">""</span> },</span> <span class="line" id="L909"> .{ .input = <span class="tok-str">"\x00\x0c"</span>, .output = <span class="tok-str">""</span> },</span> <span class="line" id="L910"> .{ .input = <span class="tok-str">"\x00\x0c\x00"</span>, .output = <span class="tok-str">""</span> },</span> <span class="line" id="L911"> .{ .input = <span class="tok-str">"\x00\x0c\x00\xf3\xff"</span>, .output = <span class="tok-str">""</span> },</span> <span class="line" id="L912"> .{ .input = <span class="tok-str">"\x00\x0c\x00\xf3\xffhello"</span>, .output = <span class="tok-str">"hello"</span> },</span> <span class="line" id="L913"> .{ .input = <span class="tok-str">"\x00\x0c\x00\xf3\xffhello, world"</span>, .output = <span class="tok-str">"hello, world"</span> },</span> <span class="line" id="L914"> .{ .input = <span class="tok-str">"\x02"</span>, .output = <span class="tok-str">""</span> },</span> <span class="line" id="L915"> .{ .input = <span class="tok-str">"\xf2H\xcd"</span>, .output = <span class="tok-str">"He"</span> },</span> <span class="line" id="L916"> .{ .input = <span class="tok-str">"\xf2H͙0a\u{0084}\t"</span>, .output = <span class="tok-str">"Hel\x90\x90\x90\x90\x90"</span> },</span> <span class="line" id="L917"> .{ .input = <span class="tok-str">"\xf2H͙0a\u{0084}\t\x00"</span>, .output = <span class="tok-str">"Hel\x90\x90\x90\x90\x90"</span> },</span> <span class="line" id="L918"> };</span> <span class="line" id="L919"></span> <span class="line" id="L920"> <span class="tok-kw">for</span> (tests) \|t\| {</span> <span class="line" id="L921"> <span class="tok-kw">var</span> fib = io.fixedBufferStream(t.input);</span> <span class="line" id="L922"> <span class="tok-kw">const</span> r = fib.reader();</span> <span class="line" id="L923"> <span class="tok-kw">var</span> z = <span class="tok-kw">try</span> decompressor(testing.allocator, r, <span class="tok-null">null</span>);</span> <span class="line" id="L924"> <span class="tok-kw">defer</span> z.deinit();</span> <span class="line" id="L925"> <span class="tok-kw">var</span> zr = z.reader();</span> <span class="line" id="L926"></span> <span class="line" id="L927"> <span class="tok-kw">var</span> output = [<span class="tok-number">1</span>]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} * <span class="tok-number">12</span>;</span> <span class="line" id="L928"> <span class="tok-kw">try</span> expectError(<span class="tok-kw">error</span>.UnexpectedEndOfStream, zr.readAll(&output));</span> <span class="line" id="L929"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, t.output, output[<span class="tok-number">0</span>..t.output.len]);</span> <span class="line" id="L930"> }</span> <span class="line" id="L931">}</span> <span class="line" id="L932"></span> <span class="line" id="L933"><span class="tok-kw">test</span> <span class="tok-str">"Go non-regression test for 9842"</span> {</span> <span class="line" id="L934"> <span class="tok-comment">// See https://golang.org/issue/9842</span> </span> <span class="line" id="L935"></span> <span class="line" id="L936"> <span class="tok-kw">const</span> Test = <span class="tok-kw">struct</span> {</span> <span class="line" id="L937"> err: ?<span class="tok-type">anyerror</span>,</span> <span class="line" id="L938"> input: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L939"> };</span> <span class="line" id="L940"></span> <span class="line" id="L941"> <span class="tok-kw">const</span> tests = [_]Test{</span> <span class="line" id="L942"> .{ .err = <span class="tok-kw">error</span>.UnexpectedEndOfStream, .input = (<span class="tok-str">"\x95\x90=o\xc20\x10\x86\xf30"</span>) },</span> <span class="line" id="L943"> .{ .err = <span class="tok-kw">error</span>.CorruptInput, .input = (<span class="tok-str">"\x950\x00\x0000000"</span>) },</span> <span class="line" id="L944"></span> <span class="line" id="L945"> <span class="tok-comment">// Huffman.construct errors</span> </span> <span class="line" id="L946"></span> <span class="line" id="L947"> <span class="tok-comment">// lencode</span> </span> <span class="line" id="L948"> .{ .err = <span class="tok-kw">error</span>.CorruptInput, .input = (<span class="tok-str">"\x950000"</span>) },</span> <span class="line" id="L949"> .{ .err = <span class="tok-kw">error</span>.CorruptInput, .input = (<span class="tok-str">"\x05000"</span>) },</span> <span class="line" id="L950"> <span class="tok-comment">// hlen</span> </span> <span class="line" id="L951"> .{ .err = <span class="tok-kw">error</span>.CorruptInput, .input = (<span class="tok-str">"\x05\xea\x01\t\x00\x00\x00\x01\x00\\\xbf.\t\x00"</span>) },</span> <span class="line" id="L952"> <span class="tok-comment">// hdist</span> </span> <span class="line" id="L953"> .{ .err = <span class="tok-kw">error</span>.CorruptInput, .input = (<span class="tok-str">"\x05\xe0\x01A\x00\x00\x00\x00\x10\\\xbf."</span>) },</span> <span class="line" id="L954"></span> <span class="line" id="L955"> <span class="tok-comment">// like the "empty distance alphabet" test but for ndist instead of nlen</span> </span> <span class="line" id="L956"> .{ .err = <span class="tok-kw">error</span>.CorruptInput, .input = (<span class="tok-str">"\x05\xe0\x01\t\x00\x00\x00\x00\x10\\\xbf\xce"</span>) },</span> <span class="line" id="L957"> .{ .err = <span class="tok-null">null</span>, .input = <span class="tok-str">"\x15\xe0\x01\t\x00\x00\x00\x00\x10\\\xbf.0"</span> },</span> <span class="line" id="L958"> };</span> <span class="line" id="L959"></span> <span class="line" id="L960"> <span class="tok-kw">for</span> (tests) \|t\| {</span> <span class="line" id="L961"> <span class="tok-kw">var</span> fib = std.io.fixedBufferStream(t.input);</span> <span class="line" id="L962"> <span class="tok-kw">const</span> reader = fib.reader();</span> <span class="line" id="L963"> <span class="tok-kw">var</span> decomp = <span class="tok-kw">try</span> decompressor(testing.allocator, reader, <span class="tok-null">null</span>);</span> <span class="line" id="L964"> <span class="tok-kw">defer</span> decomp.deinit();</span> <span class="line" id="L965"></span> <span class="line" id="L966"> <span class="tok-kw">var</span> output: [<span class="tok-number">10</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L967"> <span class="tok-kw">if</span> (t.err != <span class="tok-null">null</span>) {</span> <span class="line" id="L968"> <span class="tok-kw">try</span> expectError(t.err.?, decomp.reader().read(&output));</span> <span class="line" id="L969"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L970"> _ = <span class="tok-kw">try</span> decomp.reader().read(&output);</span> <span class="line" id="L971"> }</span> <span class="line" id="L972"> }</span> <span class="line" id="L973">}</span> <span class="line" id="L974"></span> <span class="line" id="L975"><span class="tok-kw">test</span> <span class="tok-str">"inflate A Tale of Two Cities (1859) intro"</span> {</span> <span class="line" id="L976"> <span class="tok-kw">const</span> compressed = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L977"> <span class="tok-number">0x74</span>, <span class="tok-number">0xeb</span>, <span class="tok-number">0xcd</span>, <span class="tok-number">0x0d</span>, <span class="tok-number">0x80</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x0c</span>, <span class="tok-number">0x47</span>, <span class="tok-number">0x71</span>, <span class="tok-number">0xdc</span>, <span class="tok-number">0x9d</span>, <span class="tok-number">0xa2</span>, <span class="tok-number">0x03</span>, <span class="tok-number">0xb8</span>, <span class="tok-number">0x88</span>,</span> <span class="line" id="L978"> <span class="tok-number">0x63</span>, <span class="tok-number">0xf0</span>, <span class="tok-number">0xf1</span>, <span class="tok-number">0x47</span>, <span class="tok-number">0x9a</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0xb4</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0xf5</span>, <span class="tok-number">0x0d</span>, <span class="tok-number">0x27</span>, <span class="tok-number">0x63</span>, <span class="tok-number">0x82</span>, <span class="tok-number">0xe7</span>,</span> <span class="line" id="L979"> <span class="tok-number">0xdf</span>, <span class="tok-number">0x7b</span>, <span class="tok-number">0x87</span>, <span class="tok-number">0xd1</span>, <span class="tok-number">0x70</span>, <span class="tok-number">0x4a</span>, <span class="tok-number">0x96</span>, <span class="tok-number">0x41</span>, <span class="tok-number">0x1e</span>, <span class="tok-number">0x6a</span>, <span class="tok-number">0x24</span>, <span class="tok-number">0x89</span>, <span class="tok-number">0x8c</span>, <span class="tok-number">0x2b</span>, <span class="tok-number">0x74</span>,</span> <span class="line" id="L980"> <span class="tok-number">0xdf</span>, <span class="tok-number">0xf8</span>, <span class="tok-number">0x95</span>, <span class="tok-number">0x21</span>, <span class="tok-number">0xfd</span>, <span class="tok-number">0x8f</span>, <span class="tok-number">0xdc</span>, <span class="tok-number">0x89</span>, <span class="tok-number">0x09</span>, <span class="tok-number">0x83</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x4a</span>, <span class="tok-number">0x5d</span>, <span class="tok-number">0x49</span>, <span class="tok-number">0x12</span>,</span> <span class="line" id="L981"> <span class="tok-number">0x29</span>, <span class="tok-number">0xac</span>, <span class="tok-number">0xb9</span>, <span class="tok-number">0x41</span>, <span class="tok-number">0xbf</span>, <span class="tok-number">0x23</span>, <span class="tok-number">0x2e</span>, <span class="tok-number">0x09</span>, <span class="tok-number">0x79</span>, <span class="tok-number">0x06</span>, <span class="tok-number">0x1e</span>, <span class="tok-number">0x85</span>, <span class="tok-number">0x91</span>, <span class="tok-number">0xd6</span>, <span class="tok-number">0xc6</span>,</span> <span class="line" id="L982"> <span class="tok-number">0x2d</span>, <span class="tok-number">0x74</span>, <span class="tok-number">0xc4</span>, <span class="tok-number">0xfb</span>, <span class="tok-number">0xa1</span>, <span class="tok-number">0x7b</span>, <span class="tok-number">0x0f</span>, <span class="tok-number">0x52</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x84</span>, <span class="tok-number">0x61</span>, <span class="tok-number">0x28</span>, <span class="tok-number">0x0c</span>, <span class="tok-number">0x63</span>, <span class="tok-number">0xdf</span>,</span> <span class="line" id="L983"> <span class="tok-number">0x53</span>, <span class="tok-number">0xf4</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x1e</span>, <span class="tok-number">0xc3</span>, <span class="tok-number">0xa5</span>, <span class="tok-number">0x97</span>, <span class="tok-number">0x88</span>, <span class="tok-number">0xf4</span>, <span class="tok-number">0xd9</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0xa5</span>, <span class="tok-number">0x2d</span>, <span class="tok-number">0x49</span>, <span class="tok-number">0x54</span>,</span> <span class="line" id="L984"> <span class="tok-number">0xbc</span>, <span class="tok-number">0xfd</span>, <span class="tok-number">0x90</span>, <span class="tok-number">0xa5</span>, <span class="tok-number">0x0c</span>, <span class="tok-number">0xae</span>, <span class="tok-number">0xbf</span>, <span class="tok-number">0x3f</span>, <span class="tok-number">0x84</span>, <span class="tok-number">0x77</span>, <span class="tok-number">0x88</span>, <span class="tok-number">0x3f</span>, <span class="tok-number">0xaf</span>, <span class="tok-number">0xc0</span>, <span class="tok-number">0x40</span>,</span> <span class="line" id="L985"> <span class="tok-number">0xd6</span>, <span class="tok-number">0x5b</span>, <span class="tok-number">0x14</span>, <span class="tok-number">0x8b</span>, <span class="tok-number">0x54</span>, <span class="tok-number">0xf6</span>, <span class="tok-number">0x0f</span>, <span class="tok-number">0x9b</span>, <span class="tok-number">0x49</span>, <span class="tok-number">0xf7</span>, <span class="tok-number">0xbf</span>, <span class="tok-number">0xbf</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x54</span>, <span class="tok-number">0x5a</span>,</span> <span class="line" id="L986"> <span class="tok-number">0x0d</span>, <span class="tok-number">0xe6</span>, <span class="tok-number">0x3e</span>, <span class="tok-number">0xf0</span>, <span class="tok-number">0x9e</span>, <span class="tok-number">0x29</span>, <span class="tok-number">0xcd</span>, <span class="tok-number">0xa1</span>, <span class="tok-number">0x41</span>, <span class="tok-number">0x05</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x48</span>, <span class="tok-number">0x74</span>, <span class="tok-number">0x4a</span>, <span class="tok-number">0xe9</span>,</span> <span class="line" id="L987"> <span class="tok-number">0x46</span>, <span class="tok-number">0x66</span>, <span class="tok-number">0x2a</span>, <span class="tok-number">0x19</span>, <span class="tok-number">0x17</span>, <span class="tok-number">0xf4</span>, <span class="tok-number">0x71</span>, <span class="tok-number">0x8e</span>, <span class="tok-number">0xcb</span>, <span class="tok-number">0x15</span>, <span class="tok-number">0x5b</span>, <span class="tok-number">0x57</span>, <span class="tok-number">0xe4</span>, <span class="tok-number">0xf3</span>, <span class="tok-number">0xc7</span>,</span> <span class="line" id="L988"> <span class="tok-number">0xe7</span>, <span class="tok-number">0x1e</span>, <span class="tok-number">0x9d</span>, <span class="tok-number">0x50</span>, <span class="tok-number">0x08</span>, <span class="tok-number">0xc3</span>, <span class="tok-number">0x50</span>, <span class="tok-number">0x18</span>, <span class="tok-number">0xc6</span>, <span class="tok-number">0x2a</span>, <span class="tok-number">0x19</span>, <span class="tok-number">0xa0</span>, <span class="tok-number">0xdd</span>, <span class="tok-number">0xc3</span>, <span class="tok-number">0x35</span>,</span> <span class="line" id="L989"> <span class="tok-number">0x82</span>, <span class="tok-number">0x3d</span>, <span class="tok-number">0x6a</span>, <span class="tok-number">0xb0</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x92</span>, <span class="tok-number">0x16</span>, <span class="tok-number">0x8b</span>, <span class="tok-number">0xdb</span>, <span class="tok-number">0x1b</span>, <span class="tok-number">0xeb</span>, <span class="tok-number">0x7d</span>, <span class="tok-number">0xbc</span>, <span class="tok-number">0xf8</span>, <span class="tok-number">0x16</span>,</span> <span class="line" id="L990"> <span class="tok-number">0xf8</span>, <span class="tok-number">0xc2</span>, <span class="tok-number">0xe1</span>, <span class="tok-number">0xaf</span>, <span class="tok-number">0x81</span>, <span class="tok-number">0x7e</span>, <span class="tok-number">0x58</span>, <span class="tok-number">0xf4</span>, <span class="tok-number">0x9f</span>, <span class="tok-number">0x74</span>, <span class="tok-number">0xf8</span>, <span class="tok-number">0xcd</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0xd3</span>, <span class="tok-number">0xaa</span>,</span> <span class="line" id="L991"> <span class="tok-number">0x0f</span>, <span class="tok-number">0x26</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0xcc</span>, <span class="tok-number">0x8d</span>, <span class="tok-number">0x9a</span>, <span class="tok-number">0xd2</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x3e</span>, <span class="tok-number">0x51</span>, <span class="tok-number">0xbe</span>, <span class="tok-number">0x7e</span>, <span class="tok-number">0xbc</span>, <span class="tok-number">0xc5</span>, <span class="tok-number">0x27</span>,</span> <span class="line" id="L992"> <span class="tok-number">0x3d</span>, <span class="tok-number">0xa5</span>, <span class="tok-number">0xf3</span>, <span class="tok-number">0x15</span>, <span class="tok-number">0x63</span>, <span class="tok-number">0x94</span>, <span class="tok-number">0x42</span>, <span class="tok-number">0x75</span>, <span class="tok-number">0x53</span>, <span class="tok-number">0x6b</span>, <span class="tok-number">0x61</span>, <span class="tok-number">0xc8</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x13</span>, <span class="tok-number">0x4d</span>,</span> <span class="line" id="L993"> <span class="tok-number">0x23</span>, <span class="tok-number">0xba</span>, <span class="tok-number">0x2a</span>, <span class="tok-number">0x2d</span>, <span class="tok-number">0x6c</span>, <span class="tok-number">0x94</span>, <span class="tok-number">0x65</span>, <span class="tok-number">0xc7</span>, <span class="tok-number">0x4b</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0x9b</span>, <span class="tok-number">0x25</span>, <span class="tok-number">0x3e</span>, <span class="tok-number">0xba</span>, <span class="tok-number">0x01</span>,</span> <span class="line" id="L994"> <span class="tok-number">0x10</span>, <span class="tok-number">0x84</span>, <span class="tok-number">0x81</span>, <span class="tok-number">0x28</span>, <span class="tok-number">0x80</span>, <span class="tok-number">0x55</span>, <span class="tok-number">0x1c</span>, <span class="tok-number">0xc0</span>, <span class="tok-number">0xa5</span>, <span class="tok-number">0xaa</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0xa6</span>, <span class="tok-number">0x09</span>, <span class="tok-number">0xa8</span>, <span class="tok-number">0xa1</span>,</span> <span class="line" id="L995"> <span class="tok-number">0x85</span>, <span class="tok-number">0xf9</span>, <span class="tok-number">0x7d</span>, <span class="tok-number">0x45</span>, <span class="tok-number">0xbf</span>, <span class="tok-number">0x80</span>, <span class="tok-number">0xe4</span>, <span class="tok-number">0xd1</span>, <span class="tok-number">0xbb</span>, <span class="tok-number">0xde</span>, <span class="tok-number">0xb9</span>, <span class="tok-number">0x5e</span>, <span class="tok-number">0xf1</span>, <span class="tok-number">0x23</span>, <span class="tok-number">0x89</span>,</span> <span class="line" id="L996"> <span class="tok-number">0x4b</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0xd5</span>, <span class="tok-number">0x59</span>, <span class="tok-number">0x84</span>, <span class="tok-number">0x85</span>, <span class="tok-number">0xe3</span>, <span class="tok-number">0xd4</span>, <span class="tok-number">0xdc</span>, <span class="tok-number">0xb2</span>, <span class="tok-number">0x66</span>, <span class="tok-number">0xe9</span>, <span class="tok-number">0xc1</span>, <span class="tok-number">0x44</span>, <span class="tok-number">0x0b</span>,</span> <span class="line" id="L997"> <span class="tok-number">0x1e</span>, <span class="tok-number">0x84</span>, <span class="tok-number">0xec</span>, <span class="tok-number">0xe6</span>, <span class="tok-number">0xa1</span>, <span class="tok-number">0xc7</span>, <span class="tok-number">0x42</span>, <span class="tok-number">0x6a</span>, <span class="tok-number">0x09</span>, <span class="tok-number">0x6d</span>, <span class="tok-number">0x9a</span>, <span class="tok-number">0x5e</span>, <span class="tok-number">0x70</span>, <span class="tok-number">0xa2</span>, <span class="tok-number">0x36</span>,</span> <span class="line" id="L998"> <span class="tok-number">0x94</span>, <span class="tok-number">0x29</span>, <span class="tok-number">0x2c</span>, <span class="tok-number">0x85</span>, <span class="tok-number">0x3f</span>, <span class="tok-number">0x24</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0xf3</span>, <span class="tok-number">0xae</span>, <span class="tok-number">0xc3</span>, <span class="tok-number">0xca</span>, <span class="tok-number">0xca</span>, <span class="tok-number">0xaf</span>, <span class="tok-number">0x2f</span>, <span class="tok-number">0xce</span>,</span> <span class="line" id="L999"> <span class="tok-number">0x8e</span>, <span class="tok-number">0x58</span>, <span class="tok-number">0x91</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x25</span>, <span class="tok-number">0xb5</span>, <span class="tok-number">0xb3</span>, <span class="tok-number">0xe9</span>, <span class="tok-number">0xd4</span>, <span class="tok-number">0xda</span>, <span class="tok-number">0xef</span>, <span class="tok-number">0xfa</span>, <span class="tok-number">0x48</span>, <span class="tok-number">0x7b</span>, <span class="tok-number">0x3b</span>,</span> <span class="line" id="L1000"> <span class="tok-number">0xe2</span>, <span class="tok-number">0x63</span>, <span class="tok-number">0x12</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x80</span>, <span class="tok-number">0x70</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x8c</span>, <span class="tok-number">0xbd</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x71</span>, <span class="tok-number">0xff</span>,</span> <span class="line" id="L1001"> <span class="tok-number">0xf6</span>, <span class="tok-number">0x0f</span>, <span class="tok-number">0x66</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0xcf</span>, <span class="tok-number">0xa1</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0x0f</span>,</span> <span class="line" id="L1002"> };</span> <span class="line" id="L1003"></span> <span class="line" id="L1004"> <span class="tok-kw">const</span> expected =</span> <span class="line" id="L1005"> <span class="tok-str">\\It was the best of times,</span></span> <span class="line" id="L1006"> <span class="tok-str">\\it was the worst of times,</span></span> <span class="line" id="L1007"> <span class="tok-str">\\it was the age of wisdom,</span></span> <span class="line" id="L1008"> <span class="tok-str">\\it was the age of foolishness,</span></span> <span class="line" id="L1009"> <span class="tok-str">\\it was the epoch of belief,</span></span> <span class="line" id="L1010"> <span class="tok-str">\\it was the epoch of incredulity,</span></span> <span class="line" id="L1011"> <span class="tok-str">\\it was the season of Light,</span></span> <span class="line" id="L1012"> <span class="tok-str">\\it was the season of Darkness,</span></span> <span class="line" id="L1013"> <span class="tok-str">\\it was the spring of hope,</span></span> <span class="line" id="L1014"> <span class="tok-str">\\it was the winter of despair,</span></span> <span class="line" id="L1015"> <span class="tok-str">\\</span></span> <span class="line" id="L1016"> <span class="tok-str">\\we had everything before us, we had nothing before us, we were all going direct to Heaven, we were all going direct the other way---in short, the period was so far like the present period, that some of its noisiest authorities insisted on its being received, for good or for evil, in the superlative degree of comparison only.</span></span> <span class="line" id="L1017"> <span class="tok-str">\\</span></span> <span class="line" id="L1018"> ;</span> <span class="line" id="L1019"></span> <span class="line" id="L1020"> <span class="tok-kw">var</span> fib = std.io.fixedBufferStream(&compressed);</span> <span class="line" id="L1021"> <span class="tok-kw">const</span> reader = fib.reader();</span> <span class="line" id="L1022"> <span class="tok-kw">var</span> decomp = <span class="tok-kw">try</span> decompressor(testing.allocator, reader, <span class="tok-null">null</span>);</span> <span class="line" id="L1023"> <span class="tok-kw">defer</span> decomp.deinit();</span> <span class="line" id="L1024"></span> <span class="line" id="L1025"> <span class="tok-kw">var</span> got: [<span class="tok-number">700</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1026"> <span class="tok-kw">var</span> got_len = <span class="tok-kw">try</span> decomp.reader().read(&got);</span> <span class="line" id="L1027"> <span class="tok-kw">try</span> testing.expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-number">616</span>), got_len);</span> <span class="line" id="L1028"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, expected, got[<span class="tok-number">0</span>..expected.len]);</span> <span class="line" id="L1029">}</span> <span class="line" id="L1030"></span> <span class="line" id="L1031"><span class="tok-kw">test</span> <span class="tok-str">"lengths overflow"</span> {</span> <span class="line" id="L1032"> <span class="tok-comment">// malformed final dynamic block, tries to write 321 code lengths (MAXCODES is 316)</span> </span> <span class="line" id="L1033"> <span class="tok-comment">// f dy hlit hdist hclen 16 17 18 0 (18) x138 (18) x138 (18) x39 (16) x6</span> </span> <span class="line" id="L1034"> <span class="tok-comment">// 1 10 11101 11101 0000 010 010 010 010 (11) 1111111 (11) 1111111 (11) 0011100 (01) 11</span> </span> <span class="line" id="L1035"> <span class="tok-kw">const</span> stream = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L1036"> <span class="tok-number">0b11101101</span>, <span class="tok-number">0b00011101</span>, <span class="tok-number">0b00100100</span>, <span class="tok-number">0b11101001</span>, <span class="tok-number">0b11111111</span>, <span class="tok-number">0b11111111</span>, <span class="tok-number">0b00111001</span>,</span> <span class="line" id="L1037"> <span class="tok-number">0b00001110</span>,</span> <span class="line" id="L1038"> };</span> <span class="line" id="L1039"> <span class="tok-kw">try</span> expectError(<span class="tok-kw">error</span>.CorruptInput, decompress(stream[<span class="tok-number">0</span>..]));</span> <span class="line" id="L1040">}</span> <span class="line" id="L1041"></span> <span class="line" id="L1042"><span class="tok-kw">test</span> <span class="tok-str">"empty distance alphabet"</span> {</span> <span class="line" id="L1043"> <span class="tok-comment">// dynamic block with empty distance alphabet is valid if only literals and end of data symbol are used</span> </span> <span class="line" id="L1044"> <span class="tok-comment">// f dy hlit hdist hclen 16 17 18 0 8 7 9 6 10 5 11 4 12 3 13 2 14 1 15 (18) x128 (18) x128 (1) ( 0) (256)</span> </span> <span class="line" id="L1045"> <span class="tok-comment">// 1 10 00000 00000 1111 000 000 010 010 000 000 000 000 000 000 000 000 000 000 000 000 000 001 000 (11) 1110101 (11) 1110101 (0) (10) (0)</span> </span> <span class="line" id="L1046"> <span class="tok-kw">const</span> stream = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L1047"> <span class="tok-number">0b00000101</span>, <span class="tok-number">0b11100000</span>, <span class="tok-number">0b00000001</span>, <span class="tok-number">0b00001001</span>, <span class="tok-number">0b00000000</span>, <span class="tok-number">0b00000000</span>,</span> <span class="line" id="L1048"> <span class="tok-number">0b00000000</span>, <span class="tok-number">0b00000000</span>, <span class="tok-number">0b00010000</span>, <span class="tok-number">0b01011100</span>, <span class="tok-number">0b10111111</span>, <span class="tok-number">0b00101110</span>,</span> <span class="line" id="L1049"> };</span> <span class="line" id="L1050"> <span class="tok-kw">try</span> decompress(stream[<span class="tok-number">0</span>..]);</span> <span class="line" id="L1051">}</span> <span class="line" id="L1052"></span> <span class="line" id="L1053"><span class="tok-kw">test</span> <span class="tok-str">"distance past beginning of output stream"</span> {</span> <span class="line" id="L1054"> <span class="tok-comment">// f fx ('A') ('B') ('C') <len=4, dist=4> (end)</span> </span> <span class="line" id="L1055"> <span class="tok-comment">// 1 01 (01110001) (01110010) (01110011) (0000010) (00011) (0000000)</span> </span> <span class="line" id="L1056"> <span class="tok-kw">const</span> stream = [_]<span class="tok-type">u8</span>{ <span class="tok-number">0b01110011</span>, <span class="tok-number">0b01110100</span>, <span class="tok-number">0b01110010</span>, <span class="tok-number">0b00000110</span>, <span class="tok-number">0b01100001</span>, <span class="tok-number">0b00000000</span> };</span> <span class="line" id="L1057"> <span class="tok-kw">try</span> std.testing.expectError(<span class="tok-kw">error</span>.CorruptInput, decompress(stream[<span class="tok-number">0</span>..]));</span> <span class="line" id="L1058">}</span> <span class="line" id="L1059"></span> <span class="line" id="L1060"><span class="tok-kw">test</span> <span class="tok-str">"fuzzing"</span> {</span> <span class="line" id="L1061"> <span class="tok-kw">const</span> compressed = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L1062"> <span class="tok-number">0x0a</span>, <span class="tok-number">0x08</span>, <span class="tok-number">0x50</span>, <span class="tok-number">0xeb</span>, <span class="tok-number">0x25</span>, <span class="tok-number">0x05</span>, <span class="tok-number">0xfc</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x0b</span>, <span class="tok-number">0x0a</span>, <span class="tok-number">0x08</span>, <span class="tok-number">0x50</span>, <span class="tok-number">0xeb</span>, <span class="tok-number">0x25</span>, <span class="tok-number">0x05</span>,</span> <span class="line" id="L1063"> } ++ [_]<span class="tok-type">u8</span>{<span class="tok-number">0xe1</span>} <span class="tok-number">15</span> ++ [_]<span class="tok-type">u8</span>{<span class="tok-number">0x30</span>} ++ [_]<span class="tok-type">u8</span>{<span class="tok-number">0xe1</span>} <span class="tok-number">1481</span>;</span> <span class="line" id="L1064"> <span class="tok-kw">try</span> expectError(<span class="tok-kw">error</span>.UnexpectedEndOfStream, decompress(&compressed));</span> <span class="line" id="L1065"></span> <span class="line" id="L1066"> <span class="tok-comment">// see https://github.com/ziglang/zig/issues/9842</span> </span> <span class="line" id="L1067"> <span class="tok-kw">try</span> expectError(<span class="tok-kw">error</span>.UnexpectedEndOfStream, decompress(<span class="tok-str">"\x95\x90=o\xc20\x10\x86\xf30"</span>));</span> <span class="line" id="L1068"> <span class="tok-kw">try</span> expectError(<span class="tok-kw">error</span>.CorruptInput, decompress(<span class="tok-str">"\x950\x00\x0000000"</span>));</span> <span class="line" id="L1069"></span> <span class="line" id="L1070"> <span class="tok-comment">// Huffman errors</span> </span> <span class="line" id="L1071"> <span class="tok-comment">// lencode</span> </span> <span class="line" id="L1072"> <span class="tok-kw">try</span> expectError(<span class="tok-kw">error</span>.CorruptInput, decompress(<span class="tok-str">"\x950000"</span>));</span> <span class="line" id="L1073"> <span class="tok-kw">try</span> expectError(<span class="tok-kw">error</span>.CorruptInput, decompress(<span class="tok-str">"\x05000"</span>));</span> <span class="line" id="L1074"> <span class="tok-comment">// hlen</span> </span> <span class="line" id="L1075"> <span class="tok-kw">try</span> expectError(<span class="tok-kw">error</span>.CorruptInput, decompress(<span class="tok-str">"\x05\xea\x01\t\x00\x00\x00\x01\x00\\\xbf.\t\x00"</span>));</span> <span class="line" id="L1076"> <span class="tok-comment">// hdist</span> </span> <span class="line" id="L1077"> <span class="tok-kw">try</span> expectError(<span class="tok-kw">error</span>.CorruptInput, decompress(<span class="tok-str">"\x05\xe0\x01A\x00\x00\x00\x00\x10\\\xbf."</span>));</span> <span class="line" id="L1078"></span> <span class="line" id="L1079"> <span class="tok-comment">// like the "empty distance alphabet" test but for ndist instead of nlen</span> </span> <span class="line" id="L1080"> <span class="tok-kw">try</span> expectError(<span class="tok-kw">error</span>.CorruptInput, decompress(<span class="tok-str">"\x05\xe0\x01\t\x00\x00\x00\x00\x10\\\xbf\xce"</span>));</span> <span class="line" id="L1081"> <span class="tok-kw">try</span> decompress(<span class="tok-str">"\x15\xe0\x01\t\x00\x00\x00\x00\x10\\\xbf.0"</span>);</span> <span class="line" id="L1082">}</span> <span class="line" id="L1083"></span> <span class="line" id="L1084"><span class="tok-kw">fn</span> <span class="tok-fn">decompress</span>(input: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L1085"> <span class="tok-kw">const</span> allocator = testing.allocator;</span> <span class="line" id="L1086"> <span class="tok-kw">var</span> fib = std.io.fixedBufferStream(input);</span> <span class="line" id="L1087"> <span class="tok-kw">const</span> reader = fib.reader();</span> <span class="line" id="L1088"> <span class="tok-kw">var</span> decomp = <span class="tok-kw">try</span> decompressor(allocator, reader, <span class="tok-null">null</span>);</span> <span class="line" id="L1089"> <span class="tok-kw">defer</span> decomp.deinit();</span> <span class="line" id="L1090"> <span class="tok-kw">var</span> output = <span class="tok-kw">try</span> decomp.reader().readAllAlloc(allocator, math.maxInt(<span class="tok-type">usize</span>));</span> <span class="line" id="L1091"> <span class="tok-kw">defer</span> std.testing.allocator.free(output);</span> <span class="line" id="L1092">}</span> <span class="line" id="L1093"></span> </code></pre></body> </html>
repos/yazap/docs/src/std/compress	repos/yazap/docs/src/std/compress/deflate/compressor.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>compress/deflate/compressor.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> assert = std.debug.assert;</span> <span class="line" id="L3"><span class="tok-kw">const</span> fmt = std.fmt;</span> <span class="line" id="L4"><span class="tok-kw">const</span> io = std.io;</span> <span class="line" id="L5"><span class="tok-kw">const</span> math = std.math;</span> <span class="line" id="L6"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L7"></span> <span class="line" id="L8"><span class="tok-kw">const</span> Allocator = std.mem.Allocator;</span> <span class="line" id="L9"></span> <span class="line" id="L10"><span class="tok-kw">const</span> deflate_const = <span class="tok-builtin">@import</span>(<span class="tok-str">"deflate_const.zig"</span>);</span> <span class="line" id="L11"><span class="tok-kw">const</span> fast = <span class="tok-builtin">@import</span>(<span class="tok-str">"deflate_fast.zig"</span>);</span> <span class="line" id="L12"><span class="tok-kw">const</span> hm_bw = <span class="tok-builtin">@import</span>(<span class="tok-str">"huffman_bit_writer.zig"</span>);</span> <span class="line" id="L13"><span class="tok-kw">const</span> token = <span class="tok-builtin">@import</span>(<span class="tok-str">"token.zig"</span>);</span> <span class="line" id="L14"></span> <span class="line" id="L15"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Compression = <span class="tok-kw">enum</span>(<span class="tok-type">i5</span>) {</span> <span class="line" id="L16"> <span class="tok-comment">/// huffman_only disables Lempel-Ziv match searching and only performs Huffman</span></span> <span class="line" id="L17"> <span class="tok-comment">/// entropy encoding. This mode is useful in compressing data that has</span></span> <span class="line" id="L18"> <span class="tok-comment">/// already been compressed with an LZ style algorithm (e.g. Snappy or LZ4)</span></span> <span class="line" id="L19"> <span class="tok-comment">/// that lacks an entropy encoder. Compression gains are achieved when</span></span> <span class="line" id="L20"> <span class="tok-comment">/// certain bytes in the input stream occur more frequently than others.</span></span> <span class="line" id="L21"> <span class="tok-comment">///</span></span> <span class="line" id="L22"> <span class="tok-comment">/// Note that huffman_only produces a compressed output that is</span></span> <span class="line" id="L23"> <span class="tok-comment">/// RFC 1951 compliant. That is, any valid DEFLATE decompressor will</span></span> <span class="line" id="L24"> <span class="tok-comment">/// continue to be able to decompress this output.</span></span> <span class="line" id="L25"> huffman_only = -<span class="tok-number">2</span>,</span> <span class="line" id="L26"> <span class="tok-comment">/// Same as level_6</span></span> <span class="line" id="L27"> default_compression = -<span class="tok-number">1</span>,</span> <span class="line" id="L28"> <span class="tok-comment">/// Does not attempt any compression; only adds the necessary DEFLATE framing.</span></span> <span class="line" id="L29"> no_compression = <span class="tok-number">0</span>,</span> <span class="line" id="L30"> <span class="tok-comment">/// Prioritizes speed over output size, based on Snappy's LZ77-style encoder</span></span> <span class="line" id="L31"> best_speed = <span class="tok-number">1</span>,</span> <span class="line" id="L32"> level_2 = <span class="tok-number">2</span>,</span> <span class="line" id="L33"> level_3 = <span class="tok-number">3</span>,</span> <span class="line" id="L34"> level_4 = <span class="tok-number">4</span>,</span> <span class="line" id="L35"> level_5 = <span class="tok-number">5</span>,</span> <span class="line" id="L36"> level_6 = <span class="tok-number">6</span>,</span> <span class="line" id="L37"> level_7 = <span class="tok-number">7</span>,</span> <span class="line" id="L38"> level_8 = <span class="tok-number">8</span>,</span> <span class="line" id="L39"> <span class="tok-comment">/// Prioritizes smaller output size over speed</span></span> <span class="line" id="L40"> best_compression = <span class="tok-number">9</span>,</span> <span class="line" id="L41">};</span> <span class="line" id="L42"></span> <span class="line" id="L43"><span class="tok-kw">const</span> log_window_size = <span class="tok-number">15</span>;</span> <span class="line" id="L44"><span class="tok-kw">const</span> window_size = <span class="tok-number">1</span> << log_window_size;</span> <span class="line" id="L45"><span class="tok-kw">const</span> window_mask = window_size - <span class="tok-number">1</span>;</span> <span class="line" id="L46"></span> <span class="line" id="L47"><span class="tok-comment">// The LZ77 step produces a sequence of literal tokens and <length, offset></span> </span> <span class="line" id="L48"><span class="tok-comment">// pair tokens. The offset is also known as distance. The underlying wire</span> </span> <span class="line" id="L49"><span class="tok-comment">// format limits the range of lengths and offsets. For example, there are</span> </span> <span class="line" id="L50"><span class="tok-comment">// 256 legitimate lengths: those in the range [3, 258]. This package's</span> </span> <span class="line" id="L51"><span class="tok-comment">// compressor uses a higher minimum match length, enabling optimizations</span> </span> <span class="line" id="L52"><span class="tok-comment">// such as finding matches via 32-bit loads and compares.</span> </span> <span class="line" id="L53"><span class="tok-kw">const</span> base_match_length = deflate_const.base_match_length; <span class="tok-comment">// The smallest match length per the RFC section 3.2.5</span> </span> <span class="line" id="L54"><span class="tok-kw">const</span> min_match_length = <span class="tok-number">4</span>; <span class="tok-comment">// The smallest match length that the compressor actually emits</span> </span> <span class="line" id="L55"><span class="tok-kw">const</span> max_match_length = deflate_const.max_match_length;</span> <span class="line" id="L56"><span class="tok-kw">const</span> base_match_offset = deflate_const.base_match_offset; <span class="tok-comment">// The smallest match offset</span> </span> <span class="line" id="L57"><span class="tok-kw">const</span> max_match_offset = deflate_const.max_match_offset; <span class="tok-comment">// The largest match offset</span> </span> <span class="line" id="L58"></span> <span class="line" id="L59"><span class="tok-comment">// The maximum number of tokens we put into a single flate block, just to</span> </span> <span class="line" id="L60"><span class="tok-comment">// stop things from getting too large.</span> </span> <span class="line" id="L61"><span class="tok-kw">const</span> max_flate_block_tokens = <span class="tok-number">1</span> << <span class="tok-number">14</span>;</span> <span class="line" id="L62"><span class="tok-kw">const</span> max_store_block_size = deflate_const.max_store_block_size;</span> <span class="line" id="L63"><span class="tok-kw">const</span> hash_bits = <span class="tok-number">17</span>; <span class="tok-comment">// After 17 performance degrades</span> </span> <span class="line" id="L64"><span class="tok-kw">const</span> hash_size = <span class="tok-number">1</span> << hash_bits;</span> <span class="line" id="L65"><span class="tok-kw">const</span> hash_mask = (<span class="tok-number">1</span> << hash_bits) - <span class="tok-number">1</span>;</span> <span class="line" id="L66"><span class="tok-kw">const</span> max_hash_offset = <span class="tok-number">1</span> << <span class="tok-number">24</span>;</span> <span class="line" id="L67"></span> <span class="line" id="L68"><span class="tok-kw">const</span> skip_never = math.maxInt(<span class="tok-type">u32</span>);</span> <span class="line" id="L69"></span> <span class="line" id="L70"><span class="tok-kw">const</span> CompressionLevel = <span class="tok-kw">struct</span> {</span> <span class="line" id="L71"> good: <span class="tok-type">u16</span>,</span> <span class="line" id="L72"> lazy: <span class="tok-type">u16</span>,</span> <span class="line" id="L73"> nice: <span class="tok-type">u16</span>,</span> <span class="line" id="L74"> chain: <span class="tok-type">u16</span>,</span> <span class="line" id="L75"> fast_skip_hashshing: <span class="tok-type">u32</span>,</span> <span class="line" id="L76">};</span> <span class="line" id="L77"></span> <span class="line" id="L78"><span class="tok-kw">fn</span> <span class="tok-fn">levels</span>(compression: Compression) CompressionLevel {</span> <span class="line" id="L79"> <span class="tok-kw">switch</span> (compression) {</span> <span class="line" id="L80"> .no_compression,</span> <span class="line" id="L81"> .best_speed, <span class="tok-comment">// best_speed uses a custom algorithm; see deflate_fast.zig</span> </span> <span class="line" id="L82"> .huffman_only,</span> <span class="line" id="L83"> => <span class="tok-kw">return</span> .{</span> <span class="line" id="L84"> .good = <span class="tok-number">0</span>,</span> <span class="line" id="L85"> .lazy = <span class="tok-number">0</span>,</span> <span class="line" id="L86"> .nice = <span class="tok-number">0</span>,</span> <span class="line" id="L87"> .chain = <span class="tok-number">0</span>,</span> <span class="line" id="L88"> .fast_skip_hashshing = <span class="tok-number">0</span>,</span> <span class="line" id="L89"> },</span> <span class="line" id="L90"> <span class="tok-comment">// For levels 2-3 we don't bother trying with lazy matches.</span> </span> <span class="line" id="L91"> .level_2 => <span class="tok-kw">return</span> .{</span> <span class="line" id="L92"> .good = <span class="tok-number">4</span>,</span> <span class="line" id="L93"> .lazy = <span class="tok-number">0</span>,</span> <span class="line" id="L94"> .nice = <span class="tok-number">16</span>,</span> <span class="line" id="L95"> .chain = <span class="tok-number">8</span>,</span> <span class="line" id="L96"> .fast_skip_hashshing = <span class="tok-number">5</span>,</span> <span class="line" id="L97"> },</span> <span class="line" id="L98"> .level_3 => <span class="tok-kw">return</span> .{</span> <span class="line" id="L99"> .good = <span class="tok-number">4</span>,</span> <span class="line" id="L100"> .lazy = <span class="tok-number">0</span>,</span> <span class="line" id="L101"> .nice = <span class="tok-number">32</span>,</span> <span class="line" id="L102"> .chain = <span class="tok-number">32</span>,</span> <span class="line" id="L103"> .fast_skip_hashshing = <span class="tok-number">6</span>,</span> <span class="line" id="L104"> },</span> <span class="line" id="L105"></span> <span class="line" id="L106"> <span class="tok-comment">// Levels 4-9 use increasingly more lazy matching and increasingly stringent conditions for</span> </span> <span class="line" id="L107"> <span class="tok-comment">// "good enough".</span> </span> <span class="line" id="L108"> .level_4 => <span class="tok-kw">return</span> .{</span> <span class="line" id="L109"> .good = <span class="tok-number">4</span>,</span> <span class="line" id="L110"> .lazy = <span class="tok-number">4</span>,</span> <span class="line" id="L111"> .nice = <span class="tok-number">16</span>,</span> <span class="line" id="L112"> .chain = <span class="tok-number">16</span>,</span> <span class="line" id="L113"> .fast_skip_hashshing = skip_never,</span> <span class="line" id="L114"> },</span> <span class="line" id="L115"> .level_5 => <span class="tok-kw">return</span> .{</span> <span class="line" id="L116"> .good = <span class="tok-number">8</span>,</span> <span class="line" id="L117"> .lazy = <span class="tok-number">16</span>,</span> <span class="line" id="L118"> .nice = <span class="tok-number">32</span>,</span> <span class="line" id="L119"> .chain = <span class="tok-number">32</span>,</span> <span class="line" id="L120"> .fast_skip_hashshing = skip_never,</span> <span class="line" id="L121"> },</span> <span class="line" id="L122"> .default_compression,</span> <span class="line" id="L123"> .level_6,</span> <span class="line" id="L124"> => <span class="tok-kw">return</span> .{</span> <span class="line" id="L125"> .good = <span class="tok-number">8</span>,</span> <span class="line" id="L126"> .lazy = <span class="tok-number">16</span>,</span> <span class="line" id="L127"> .nice = <span class="tok-number">128</span>,</span> <span class="line" id="L128"> .chain = <span class="tok-number">128</span>,</span> <span class="line" id="L129"> .fast_skip_hashshing = skip_never,</span> <span class="line" id="L130"> },</span> <span class="line" id="L131"> .level_7 => <span class="tok-kw">return</span> .{</span> <span class="line" id="L132"> .good = <span class="tok-number">8</span>,</span> <span class="line" id="L133"> .lazy = <span class="tok-number">32</span>,</span> <span class="line" id="L134"> .nice = <span class="tok-number">128</span>,</span> <span class="line" id="L135"> .chain = <span class="tok-number">256</span>,</span> <span class="line" id="L136"> .fast_skip_hashshing = skip_never,</span> <span class="line" id="L137"> },</span> <span class="line" id="L138"> .level_8 => <span class="tok-kw">return</span> .{</span> <span class="line" id="L139"> .good = <span class="tok-number">32</span>,</span> <span class="line" id="L140"> .lazy = <span class="tok-number">128</span>,</span> <span class="line" id="L141"> .nice = <span class="tok-number">258</span>,</span> <span class="line" id="L142"> .chain = <span class="tok-number">1024</span>,</span> <span class="line" id="L143"> .fast_skip_hashshing = skip_never,</span> <span class="line" id="L144"> },</span> <span class="line" id="L145"> .best_compression => <span class="tok-kw">return</span> .{</span> <span class="line" id="L146"> .good = <span class="tok-number">32</span>,</span> <span class="line" id="L147"> .lazy = <span class="tok-number">258</span>,</span> <span class="line" id="L148"> .nice = <span class="tok-number">258</span>,</span> <span class="line" id="L149"> .chain = <span class="tok-number">4096</span>,</span> <span class="line" id="L150"> .fast_skip_hashshing = skip_never,</span> <span class="line" id="L151"> },</span> <span class="line" id="L152"> }</span> <span class="line" id="L153">}</span> <span class="line" id="L154"></span> <span class="line" id="L155"><span class="tok-comment">// matchLen returns the number of matching bytes in a and b</span> </span> <span class="line" id="L156"><span class="tok-comment">// up to length 'max'. Both slices must be at least 'max'</span> </span> <span class="line" id="L157"><span class="tok-comment">// bytes in size.</span> </span> <span class="line" id="L158"><span class="tok-kw">fn</span> <span class="tok-fn">matchLen</span>(a: []<span class="tok-type">u8</span>, b: []<span class="tok-type">u8</span>, max: <span class="tok-type">u32</span>) <span class="tok-type">u32</span> {</span> <span class="line" id="L159"> <span class="tok-kw">var</span> bounded_a = a[<span class="tok-number">0</span>..max];</span> <span class="line" id="L160"> <span class="tok-kw">var</span> bounded_b = b[<span class="tok-number">0</span>..max];</span> <span class="line" id="L161"> <span class="tok-kw">for</span> (bounded_a, <span class="tok-number">0</span>..) \|av, i\| {</span> <span class="line" id="L162"> <span class="tok-kw">if</span> (bounded_b[i] != av) {</span> <span class="line" id="L163"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(i));</span> <span class="line" id="L164"> }</span> <span class="line" id="L165"> }</span> <span class="line" id="L166"> <span class="tok-kw">return</span> max;</span> <span class="line" id="L167">}</span> <span class="line" id="L168"></span> <span class="line" id="L169"><span class="tok-kw">const</span> hash_mul = <span class="tok-number">0x1e35a7bd</span>;</span> <span class="line" id="L170"></span> <span class="line" id="L171"><span class="tok-comment">// hash4 returns a hash representation of the first 4 bytes</span> </span> <span class="line" id="L172"><span class="tok-comment">// of the supplied slice.</span> </span> <span class="line" id="L173"><span class="tok-comment">// The caller must ensure that b.len >= 4.</span> </span> <span class="line" id="L174"><span class="tok-kw">fn</span> <span class="tok-fn">hash4</span>(b: []<span class="tok-type">u8</span>) <span class="tok-type">u32</span> {</span> <span class="line" id="L175"> <span class="tok-kw">return</span> ((<span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, b[<span class="tok-number">3</span>]) \|</span> <span class="line" id="L176"> <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, b[<span class="tok-number">2</span>]) << <span class="tok-number">8</span> \|</span> <span class="line" id="L177"> <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, b[<span class="tok-number">1</span>]) << <span class="tok-number">16</span> \|</span> <span class="line" id="L178"> <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, b[<span class="tok-number">0</span>]) << <span class="tok-number">24</span>) % hash_mul) >> (<span class="tok-number">32</span> - hash_bits);</span> <span class="line" id="L179">}</span> <span class="line" id="L180"></span> <span class="line" id="L181"><span class="tok-comment">// bulkHash4 will compute hashes using the same</span> </span> <span class="line" id="L182"><span class="tok-comment">// algorithm as hash4</span> </span> <span class="line" id="L183"><span class="tok-kw">fn</span> <span class="tok-fn">bulkHash4</span>(b: []<span class="tok-type">u8</span>, dst: []<span class="tok-type">u32</span>) <span class="tok-type">u32</span> {</span> <span class="line" id="L184"> <span class="tok-kw">if</span> (b.len < min_match_length) {</span> <span class="line" id="L185"> <span class="tok-kw">return</span> <span class="tok-number">0</span>;</span> <span class="line" id="L186"> }</span> <span class="line" id="L187"> <span class="tok-kw">var</span> hb =</span> <span class="line" id="L188"> <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, b[<span class="tok-number">3</span>]) \|</span> <span class="line" id="L189"> <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, b[<span class="tok-number">2</span>]) << <span class="tok-number">8</span> \|</span> <span class="line" id="L190"> <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, b[<span class="tok-number">1</span>]) << <span class="tok-number">16</span> \|</span> <span class="line" id="L191"> <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, b[<span class="tok-number">0</span>]) << <span class="tok-number">24</span>;</span> <span class="line" id="L192"></span> <span class="line" id="L193"> dst[<span class="tok-number">0</span>] = (hb % hash_mul) >> (<span class="tok-number">32</span> - hash_bits);</span> <span class="line" id="L194"> <span class="tok-kw">var</span> end = b.len - min_match_length + <span class="tok-number">1</span>;</span> <span class="line" id="L195"> <span class="tok-kw">var</span> i: <span class="tok-type">u32</span> = <span class="tok-number">1</span>;</span> <span class="line" id="L196"> <span class="tok-kw">while</span> (i < end) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L197"> hb = (hb << <span class="tok-number">8</span>) \| <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, b[i + <span class="tok-number">3</span>]);</span> <span class="line" id="L198"> dst[i] = (hb % hash_mul) >> (<span class="tok-number">32</span> - hash_bits);</span> <span class="line" id="L199"> }</span> <span class="line" id="L200"></span> <span class="line" id="L201"> <span class="tok-kw">return</span> hb;</span> <span class="line" id="L202">}</span> <span class="line" id="L203"></span> <span class="line" id="L204"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> CompressorOptions = <span class="tok-kw">struct</span> {</span> <span class="line" id="L205"> level: Compression = .default_compression,</span> <span class="line" id="L206"> dictionary: ?[]<span class="tok-kw">const</span> <span class="tok-type">u8</span> = <span class="tok-null">null</span>,</span> <span class="line" id="L207">};</span> <span class="line" id="L208"></span> <span class="line" id="L209"><span class="tok-comment">/// Returns a new Compressor compressing data at the given level.</span></span> <span class="line" id="L210"><span class="tok-comment">/// Following zlib, levels range from 1 (best_speed) to 9 (best_compression);</span></span> <span class="line" id="L211"><span class="tok-comment">/// higher levels typically run slower but compress more. Level 0</span></span> <span class="line" id="L212"><span class="tok-comment">/// (no_compression) does not attempt any compression; it only adds the</span></span> <span class="line" id="L213"><span class="tok-comment">/// necessary DEFLATE framing.</span></span> <span class="line" id="L214"><span class="tok-comment">/// Level -1 (default_compression) uses the default compression level.</span></span> <span class="line" id="L215"><span class="tok-comment">/// Level -2 (huffman_only) will use Huffman compression only, giving</span></span> <span class="line" id="L216"><span class="tok-comment">/// a very fast compression for all types of input, but sacrificing considerable</span></span> <span class="line" id="L217"><span class="tok-comment">/// compression efficiency.</span></span> <span class="line" id="L218"><span class="tok-comment">///</span></span> <span class="line" id="L219"><span class="tok-comment">/// `dictionary` is optional and initializes the new `Compressor` with a preset dictionary.</span></span> <span class="line" id="L220"><span class="tok-comment">/// The returned Compressor behaves as if the dictionary had been written to it without producing</span></span> <span class="line" id="L221"><span class="tok-comment">/// any compressed output. The compressed data written to hm_bw can only be decompressed by a</span></span> <span class="line" id="L222"><span class="tok-comment">/// Decompressor initialized with the same dictionary.</span></span> <span class="line" id="L223"><span class="tok-comment">///</span></span> <span class="line" id="L224"><span class="tok-comment">/// The compressed data will be passed to the provided `writer`, see `writer()` and `write()`.</span></span> <span class="line" id="L225"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">compressor</span>(</span> <span class="line" id="L226"> allocator: Allocator,</span> <span class="line" id="L227"> writer: <span class="tok-kw">anytype</span>,</span> <span class="line" id="L228"> options: CompressorOptions,</span> <span class="line" id="L229">) !Compressor(<span class="tok-builtin">@TypeOf</span>(writer)) {</span> <span class="line" id="L230"> <span class="tok-kw">return</span> Compressor(<span class="tok-builtin">@TypeOf</span>(writer)).init(allocator, writer, options);</span> <span class="line" id="L231">}</span> <span class="line" id="L232"></span> <span class="line" id="L233"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">Compressor</span>(<span class="tok-kw">comptime</span> WriterType: <span class="tok-kw">anytype</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L234"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L235"> <span class="tok-kw">const</span> Self = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L236"></span> <span class="line" id="L237"> <span class="tok-comment">/// A Writer takes data written to it and writes the compressed</span></span> <span class="line" id="L238"> <span class="tok-comment">/// form of that data to an underlying writer.</span></span> <span class="line" id="L239"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Writer = io.Writer(Self, Error, write);</span> <span class="line" id="L240"></span> <span class="line" id="L241"> <span class="tok-comment">/// Returns a Writer that takes data written to it and writes the compressed</span></span> <span class="line" id="L242"> <span class="tok-comment">/// form of that data to an underlying writer.</span></span> <span class="line" id="L243"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">writer</span>(self: Self) Writer {</span> <span class="line" id="L244"> <span class="tok-kw">return</span> .{ .context = self };</span> <span class="line" id="L245"> }</span> <span class="line" id="L246"></span> <span class="line" id="L247"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Error = WriterType.Error;</span> <span class="line" id="L248"></span> <span class="line" id="L249"> allocator: Allocator,</span> <span class="line" id="L250"></span> <span class="line" id="L251"> compression: Compression,</span> <span class="line" id="L252"> compression_level: CompressionLevel,</span> <span class="line" id="L253"></span> <span class="line" id="L254"> <span class="tok-comment">// Inner writer wrapped in a HuffmanBitWriter</span> </span> <span class="line" id="L255"> hm_bw: hm_bw.HuffmanBitWriter(WriterType) = <span class="tok-null">undefined</span>,</span> <span class="line" id="L256"> bulk_hasher: <span class="tok-kw">const</span> <span class="tok-kw">fn</span> ([]<span class="tok-type">u8</span>, []<span class="tok-type">u32</span>) <span class="tok-type">u32</span>,</span> <span class="line" id="L257"></span> <span class="line" id="L258"> sync: <span class="tok-type">bool</span>, <span class="tok-comment">// requesting flush</span> </span> <span class="line" id="L259"> best_speed_enc: fast.DeflateFast, <span class="tok-comment">// Encoder for best_speed</span> </span> <span class="line" id="L260"></span> <span class="line" id="L261"> <span class="tok-comment">// Input hash chains</span> </span> <span class="line" id="L262"> <span class="tok-comment">// hash_head[hashValue] contains the largest inputIndex with the specified hash value</span> </span> <span class="line" id="L263"> <span class="tok-comment">// If hash_head[hashValue] is within the current window, then</span> </span> <span class="line" id="L264"> <span class="tok-comment">// hash_prev[hash_head[hashValue] & window_mask] contains the previous index</span> </span> <span class="line" id="L265"> <span class="tok-comment">// with the same hash value.</span> </span> <span class="line" id="L266"> chain_head: <span class="tok-type">u32</span>,</span> <span class="line" id="L267"> hash_head: []<span class="tok-type">u32</span>, <span class="tok-comment">// [hash_size]u32,</span> </span> <span class="line" id="L268"> hash_prev: []<span class="tok-type">u32</span>, <span class="tok-comment">// [window_size]u32,</span> </span> <span class="line" id="L269"> hash_offset: <span class="tok-type">u32</span>,</span> <span class="line" id="L270"></span> <span class="line" id="L271"> <span class="tok-comment">// input window: unprocessed data is window[index..window_end]</span> </span> <span class="line" id="L272"> index: <span class="tok-type">u32</span>,</span> <span class="line" id="L273"> window: []<span class="tok-type">u8</span>,</span> <span class="line" id="L274"> window_end: <span class="tok-type">usize</span>,</span> <span class="line" id="L275"> block_start: <span class="tok-type">usize</span>, <span class="tok-comment">// window index where current tokens start</span> </span> <span class="line" id="L276"> byte_available: <span class="tok-type">bool</span>, <span class="tok-comment">// if true, still need to process window[index-1].</span> </span> <span class="line" id="L277"></span> <span class="line" id="L278"> <span class="tok-comment">// queued output tokens</span> </span> <span class="line" id="L279"> tokens: []token.Token,</span> <span class="line" id="L280"> tokens_count: <span class="tok-type">u16</span>,</span> <span class="line" id="L281"></span> <span class="line" id="L282"> <span class="tok-comment">// deflate state</span> </span> <span class="line" id="L283"> length: <span class="tok-type">u32</span>,</span> <span class="line" id="L284"> offset: <span class="tok-type">u32</span>,</span> <span class="line" id="L285"> hash: <span class="tok-type">u32</span>,</span> <span class="line" id="L286"> max_insert_index: <span class="tok-type">usize</span>,</span> <span class="line" id="L287"> err: <span class="tok-type">bool</span>,</span> <span class="line" id="L288"></span> <span class="line" id="L289"> <span class="tok-comment">// hash_match must be able to contain hashes for the maximum match length.</span> </span> <span class="line" id="L290"> hash_match: []<span class="tok-type">u32</span>, <span class="tok-comment">// [max_match_length - 1]u32,</span> </span> <span class="line" id="L291"></span> <span class="line" id="L292"> <span class="tok-comment">// dictionary</span> </span> <span class="line" id="L293"> dictionary: ?[]<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L294"></span> <span class="line" id="L295"> <span class="tok-kw">fn</span> <span class="tok-fn">fillDeflate</span>(self: Self, b: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">u32</span> {</span> <span class="line" id="L296"> <span class="tok-kw">if</span> (self.index >= <span class="tok-number">2</span> * window_size - (min_match_length + max_match_length)) {</span> <span class="line" id="L297"> <span class="tok-comment">// shift the window by window_size</span> </span> <span class="line" id="L298"> mem.copyForwards(<span class="tok-type">u8</span>, self.window, self.window[window_size .. <span class="tok-number">2</span> * window_size]);</span> <span class="line" id="L299"> self.index -= window_size;</span> <span class="line" id="L300"> self.window_end -= window_size;</span> <span class="line" id="L301"> <span class="tok-kw">if</span> (self.block_start >= window_size) {</span> <span class="line" id="L302"> self.block_start -= window_size;</span> <span class="line" id="L303"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L304"> self.block_start = math.maxInt(<span class="tok-type">u32</span>);</span> <span class="line" id="L305"> }</span> <span class="line" id="L306"> self.hash_offset += window_size;</span> <span class="line" id="L307"> <span class="tok-kw">if</span> (self.hash_offset > max_hash_offset) {</span> <span class="line" id="L308"> <span class="tok-kw">var</span> delta = self.hash_offset - <span class="tok-number">1</span>;</span> <span class="line" id="L309"> self.hash_offset -= delta;</span> <span class="line" id="L310"> self.chain_head -\|= delta;</span> <span class="line" id="L311"></span> <span class="line" id="L312"> <span class="tok-comment">// Iterate over slices instead of arrays to avoid copying</span> </span> <span class="line" id="L313"> <span class="tok-comment">// the entire table onto the stack (https://golang.org/issue/18625).</span> </span> <span class="line" id="L314"> <span class="tok-kw">for</span> (self.hash_prev, <span class="tok-number">0</span>..) \|v, i\| {</span> <span class="line" id="L315"> <span class="tok-kw">if</span> (v > delta) {</span> <span class="line" id="L316"> self.hash_prev[i] = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(v - delta));</span> <span class="line" id="L317"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L318"> self.hash_prev[i] = <span class="tok-number">0</span>;</span> <span class="line" id="L319"> }</span> <span class="line" id="L320"> }</span> <span class="line" id="L321"> <span class="tok-kw">for</span> (self.hash_head, <span class="tok-number">0</span>..) \|v, i\| {</span> <span class="line" id="L322"> <span class="tok-kw">if</span> (v > delta) {</span> <span class="line" id="L323"> self.hash_head[i] = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(v - delta));</span> <span class="line" id="L324"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L325"> self.hash_head[i] = <span class="tok-number">0</span>;</span> <span class="line" id="L326"> }</span> <span class="line" id="L327"> }</span> <span class="line" id="L328"> }</span> <span class="line" id="L329"> }</span> <span class="line" id="L330"> <span class="tok-kw">const</span> n = std.compress.deflate.copy(self.window[self.window_end..], b);</span> <span class="line" id="L331"> self.window_end += n;</span> <span class="line" id="L332"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(n));</span> <span class="line" id="L333"> }</span> <span class="line" id="L334"></span> <span class="line" id="L335"> <span class="tok-kw">fn</span> <span class="tok-fn">writeBlock</span>(self: Self, tokens: []token.Token, index: <span class="tok-type">usize</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L336"> <span class="tok-kw">if</span> (index > <span class="tok-number">0</span>) {</span> <span class="line" id="L337"> <span class="tok-kw">var</span> window: ?[]<span class="tok-type">u8</span> = <span class="tok-null">null</span>;</span> <span class="line" id="L338"> <span class="tok-kw">if</span> (self.block_start <= index) {</span> <span class="line" id="L339"> window = self.window[self.block_start..index];</span> <span class="line" id="L340"> }</span> <span class="line" id="L341"> self.block_start = index;</span> <span class="line" id="L342"> <span class="tok-kw">try</span> self.hm_bw.writeBlock(tokens, <span class="tok-null">false</span>, window);</span> <span class="line" id="L343"> <span class="tok-kw">return</span>;</span> <span class="line" id="L344"> }</span> <span class="line" id="L345"> <span class="tok-kw">return</span>;</span> <span class="line" id="L346"> }</span> <span class="line" id="L347"></span> <span class="line" id="L348"> <span class="tok-comment">// fillWindow will fill the current window with the supplied</span> </span> <span class="line" id="L349"> <span class="tok-comment">// dictionary and calculate all hashes.</span> </span> <span class="line" id="L350"> <span class="tok-comment">// This is much faster than doing a full encode.</span> </span> <span class="line" id="L351"> <span class="tok-comment">// Should only be used after a reset.</span> </span> <span class="line" id="L352"> <span class="tok-kw">fn</span> <span class="tok-fn">fillWindow</span>(self: Self, in_b: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L353"> <span class="tok-kw">var</span> b = in_b;</span> <span class="line" id="L354"> <span class="tok-comment">// Do not fill window if we are in store-only mode (look at the fill() function to see</span> </span> <span class="line" id="L355"> <span class="tok-comment">// Compressions which use fillStore() instead of fillDeflate()).</span> </span> <span class="line" id="L356"> <span class="tok-kw">if</span> (self.compression == .no_compression <span class="tok-kw">or</span></span> <span class="line" id="L357"> self.compression == .huffman_only <span class="tok-kw">or</span></span> <span class="line" id="L358"> self.compression == .best_speed)</span> <span class="line" id="L359"> {</span> <span class="line" id="L360"> <span class="tok-kw">return</span>;</span> <span class="line" id="L361"> }</span> <span class="line" id="L362"></span> <span class="line" id="L363"> <span class="tok-comment">// fillWindow() must not be called with stale data</span> </span> <span class="line" id="L364"> assert(self.index == <span class="tok-number">0</span> <span class="tok-kw">and</span> self.window_end == <span class="tok-number">0</span>);</span> <span class="line" id="L365"></span> <span class="line" id="L366"> <span class="tok-comment">// If we are given too much, cut it.</span> </span> <span class="line" id="L367"> <span class="tok-kw">if</span> (b.len > window_size) {</span> <span class="line" id="L368"> b = b[b.len - window_size ..];</span> <span class="line" id="L369"> }</span> <span class="line" id="L370"> <span class="tok-comment">// Add all to window.</span> </span> <span class="line" id="L371"> <span class="tok-builtin">@memcpy</span>(self.window[<span class="tok-number">0</span>..b.len], b);</span> <span class="line" id="L372"> <span class="tok-kw">var</span> n = b.len;</span> <span class="line" id="L373"></span> <span class="line" id="L374"> <span class="tok-comment">// Calculate 256 hashes at the time (more L1 cache hits)</span> </span> <span class="line" id="L375"> <span class="tok-kw">var</span> loops = (n + <span class="tok-number">256</span> - min_match_length) / <span class="tok-number">256</span>;</span> <span class="line" id="L376"> <span class="tok-kw">var</span> j: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L377"> <span class="tok-kw">while</span> (j < loops) : (j += <span class="tok-number">1</span>) {</span> <span class="line" id="L378"> <span class="tok-kw">var</span> index = j * <span class="tok-number">256</span>;</span> <span class="line" id="L379"> <span class="tok-kw">var</span> end = index + <span class="tok-number">256</span> + min_match_length - <span class="tok-number">1</span>;</span> <span class="line" id="L380"> <span class="tok-kw">if</span> (end > n) {</span> <span class="line" id="L381"> end = n;</span> <span class="line" id="L382"> }</span> <span class="line" id="L383"> <span class="tok-kw">var</span> to_check = self.window[index..end];</span> <span class="line" id="L384"> <span class="tok-kw">var</span> dst_size = to_check.len - min_match_length + <span class="tok-number">1</span>;</span> <span class="line" id="L385"></span> <span class="line" id="L386"> <span class="tok-kw">if</span> (dst_size <= <span class="tok-number">0</span>) {</span> <span class="line" id="L387"> <span class="tok-kw">continue</span>;</span> <span class="line" id="L388"> }</span> <span class="line" id="L389"></span> <span class="line" id="L390"> <span class="tok-kw">var</span> dst = self.hash_match[<span class="tok-number">0</span>..dst_size];</span> <span class="line" id="L391"> _ = self.bulk_hasher(to_check, dst);</span> <span class="line" id="L392"> <span class="tok-kw">var</span> new_h: <span class="tok-type">u32</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L393"> <span class="tok-kw">for</span> (dst, <span class="tok-number">0</span>..) \|val, i\| {</span> <span class="line" id="L394"> <span class="tok-kw">var</span> di = i + index;</span> <span class="line" id="L395"> new_h = val;</span> <span class="line" id="L396"> <span class="tok-kw">var</span> hh = &self.hash_head[new_h & hash_mask];</span> <span class="line" id="L397"> <span class="tok-comment">// Get previous value with the same hash.</span> </span> <span class="line" id="L398"> <span class="tok-comment">// Our chain should point to the previous value.</span> </span> <span class="line" id="L399"> self.hash_prev[di & window_mask] = hh.;</span> <span class="line" id="L400"> <span class="tok-comment">// Set the head of the hash chain to us.</span> </span> <span class="line" id="L401"> hh. = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(di + self.hash_offset));</span> <span class="line" id="L402"> }</span> <span class="line" id="L403"> self.hash = new_h;</span> <span class="line" id="L404"> }</span> <span class="line" id="L405"> <span class="tok-comment">// Update window information.</span> </span> <span class="line" id="L406"> self.window_end = n;</span> <span class="line" id="L407"> self.index = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(n));</span> <span class="line" id="L408"> }</span> <span class="line" id="L409"></span> <span class="line" id="L410"> <span class="tok-kw">const</span> Match = <span class="tok-kw">struct</span> {</span> <span class="line" id="L411"> length: <span class="tok-type">u32</span>,</span> <span class="line" id="L412"> offset: <span class="tok-type">u32</span>,</span> <span class="line" id="L413"> ok: <span class="tok-type">bool</span>,</span> <span class="line" id="L414"> };</span> <span class="line" id="L415"></span> <span class="line" id="L416"> <span class="tok-comment">// Try to find a match starting at pos whose length is greater than prev_length.</span> </span> <span class="line" id="L417"> <span class="tok-comment">// We only look at self.compression_level.chain possibilities before giving up.</span> </span> <span class="line" id="L418"> <span class="tok-kw">fn</span> <span class="tok-fn">findMatch</span>(</span> <span class="line" id="L419"> self: Self,</span> <span class="line" id="L420"> pos: <span class="tok-type">u32</span>,</span> <span class="line" id="L421"> prev_head: <span class="tok-type">u32</span>,</span> <span class="line" id="L422"> prev_length: <span class="tok-type">u32</span>,</span> <span class="line" id="L423"> lookahead: <span class="tok-type">u32</span>,</span> <span class="line" id="L424"> ) Match {</span> <span class="line" id="L425"> <span class="tok-kw">var</span> length: <span class="tok-type">u32</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L426"> <span class="tok-kw">var</span> offset: <span class="tok-type">u32</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L427"> <span class="tok-kw">var</span> ok: <span class="tok-type">bool</span> = <span class="tok-null">false</span>;</span> <span class="line" id="L428"></span> <span class="line" id="L429"> <span class="tok-kw">var</span> min_match_look: <span class="tok-type">u32</span> = max_match_length;</span> <span class="line" id="L430"> <span class="tok-kw">if</span> (lookahead < min_match_look) {</span> <span class="line" id="L431"> min_match_look = lookahead;</span> <span class="line" id="L432"> }</span> <span class="line" id="L433"></span> <span class="line" id="L434"> <span class="tok-kw">var</span> win = self.window[<span class="tok-number">0</span> .. pos + min_match_look];</span> <span class="line" id="L435"></span> <span class="line" id="L436"> <span class="tok-comment">// We quit when we get a match that's at least nice long</span> </span> <span class="line" id="L437"> <span class="tok-kw">var</span> nice = win.len - pos;</span> <span class="line" id="L438"> <span class="tok-kw">if</span> (self.compression_level.nice < nice) {</span> <span class="line" id="L439"> nice = self.compression_level.nice;</span> <span class="line" id="L440"> }</span> <span class="line" id="L441"></span> <span class="line" id="L442"> <span class="tok-comment">// If we've got a match that's good enough, only look in 1/4 the chain.</span> </span> <span class="line" id="L443"> <span class="tok-kw">var</span> tries = self.compression_level.chain;</span> <span class="line" id="L444"> length = prev_length;</span> <span class="line" id="L445"> <span class="tok-kw">if</span> (length >= self.compression_level.good) {</span> <span class="line" id="L446"> tries >>= <span class="tok-number">2</span>;</span> <span class="line" id="L447"> }</span> <span class="line" id="L448"></span> <span class="line" id="L449"> <span class="tok-kw">var</span> w_end = win[pos + length];</span> <span class="line" id="L450"> <span class="tok-kw">var</span> w_pos = win[pos..];</span> <span class="line" id="L451"> <span class="tok-kw">var</span> min_index = pos -\| window_size;</span> <span class="line" id="L452"></span> <span class="line" id="L453"> <span class="tok-kw">var</span> i = prev_head;</span> <span class="line" id="L454"> <span class="tok-kw">while</span> (tries > <span class="tok-number">0</span>) : (tries -= <span class="tok-number">1</span>) {</span> <span class="line" id="L455"> <span class="tok-kw">if</span> (w_end == win[i + length]) {</span> <span class="line" id="L456"> <span class="tok-kw">var</span> n = matchLen(win[i..], w_pos, min_match_look);</span> <span class="line" id="L457"></span> <span class="line" id="L458"> <span class="tok-kw">if</span> (n > length <span class="tok-kw">and</span> (n > min_match_length <span class="tok-kw">or</span> pos - i <= <span class="tok-number">4096</span>)) {</span> <span class="line" id="L459"> length = n;</span> <span class="line" id="L460"> offset = pos - i;</span> <span class="line" id="L461"> ok = <span class="tok-null">true</span>;</span> <span class="line" id="L462"> <span class="tok-kw">if</span> (n >= nice) {</span> <span class="line" id="L463"> <span class="tok-comment">// The match is good enough that we don't try to find a better one.</span> </span> <span class="line" id="L464"> <span class="tok-kw">break</span>;</span> <span class="line" id="L465"> }</span> <span class="line" id="L466"> w_end = win[pos + n];</span> <span class="line" id="L467"> }</span> <span class="line" id="L468"> }</span> <span class="line" id="L469"> <span class="tok-kw">if</span> (i == min_index) {</span> <span class="line" id="L470"> <span class="tok-comment">// hash_prev[i & window_mask] has already been overwritten, so stop now.</span> </span> <span class="line" id="L471"> <span class="tok-kw">break</span>;</span> <span class="line" id="L472"> }</span> <span class="line" id="L473"></span> <span class="line" id="L474"> <span class="tok-kw">if</span> (<span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(self.hash_prev[i & window_mask])) < self.hash_offset) {</span> <span class="line" id="L475"> <span class="tok-kw">break</span>;</span> <span class="line" id="L476"> }</span> <span class="line" id="L477"></span> <span class="line" id="L478"> i = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(self.hash_prev[i & window_mask])) - self.hash_offset;</span> <span class="line" id="L479"> <span class="tok-kw">if</span> (i < min_index) {</span> <span class="line" id="L480"> <span class="tok-kw">break</span>;</span> <span class="line" id="L481"> }</span> <span class="line" id="L482"> }</span> <span class="line" id="L483"></span> <span class="line" id="L484"> <span class="tok-kw">return</span> Match{ .length = length, .offset = offset, .ok = ok };</span> <span class="line" id="L485"> }</span> <span class="line" id="L486"></span> <span class="line" id="L487"> <span class="tok-kw">fn</span> <span class="tok-fn">writeStoredBlock</span>(self: Self, buf: []<span class="tok-type">u8</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L488"> <span class="tok-kw">try</span> self.hm_bw.writeStoredHeader(buf.len, <span class="tok-null">false</span>);</span> <span class="line" id="L489"> <span class="tok-kw">try</span> self.hm_bw.writeBytes(buf);</span> <span class="line" id="L490"> }</span> <span class="line" id="L491"></span> <span class="line" id="L492"> <span class="tok-comment">// encSpeed will compress and store the currently added data,</span> </span> <span class="line" id="L493"> <span class="tok-comment">// if enough has been accumulated or we at the end of the stream.</span> </span> <span class="line" id="L494"> <span class="tok-kw">fn</span> <span class="tok-fn">encSpeed</span>(self: Self) !<span class="tok-type">void</span> {</span> <span class="line" id="L495"> <span class="tok-comment">// We only compress if we have max_store_block_size.</span> </span> <span class="line" id="L496"> <span class="tok-kw">if</span> (self.window_end < max_store_block_size) {</span> <span class="line" id="L497"> <span class="tok-kw">if</span> (!self.sync) {</span> <span class="line" id="L498"> <span class="tok-kw">return</span>;</span> <span class="line" id="L499"> }</span> <span class="line" id="L500"></span> <span class="line" id="L501"> <span class="tok-comment">// Handle small sizes.</span> </span> <span class="line" id="L502"> <span class="tok-kw">if</span> (self.window_end < <span class="tok-number">128</span>) {</span> <span class="line" id="L503"> <span class="tok-kw">switch</span> (self.window_end) {</span> <span class="line" id="L504"> <span class="tok-number">0</span> => <span class="tok-kw">return</span>,</span> <span class="line" id="L505"> <span class="tok-number">1</span>...<span class="tok-number">16</span> => {</span> <span class="line" id="L506"> <span class="tok-kw">try</span> self.writeStoredBlock(self.window[<span class="tok-number">0</span>..self.window_end]);</span> <span class="line" id="L507"> },</span> <span class="line" id="L508"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L509"> <span class="tok-kw">try</span> self.hm_bw.writeBlockHuff(<span class="tok-null">false</span>, self.window[<span class="tok-number">0</span>..self.window_end]);</span> <span class="line" id="L510"> self.err = self.hm_bw.err;</span> <span class="line" id="L511"> },</span> <span class="line" id="L512"> }</span> <span class="line" id="L513"> self.window_end = <span class="tok-number">0</span>;</span> <span class="line" id="L514"> self.best_speed_enc.reset();</span> <span class="line" id="L515"> <span class="tok-kw">return</span>;</span> <span class="line" id="L516"> }</span> <span class="line" id="L517"> }</span> <span class="line" id="L518"> <span class="tok-comment">// Encode the block.</span> </span> <span class="line" id="L519"> self.tokens_count = <span class="tok-number">0</span>;</span> <span class="line" id="L520"> self.best_speed_enc.encode(</span> <span class="line" id="L521"> self.tokens,</span> <span class="line" id="L522"> &self.tokens_count,</span> <span class="line" id="L523"> self.window[<span class="tok-number">0</span>..self.window_end],</span> <span class="line" id="L524"> );</span> <span class="line" id="L525"></span> <span class="line" id="L526"> <span class="tok-comment">// If we removed less than 1/16th, Huffman compress the block.</span> </span> <span class="line" id="L527"> <span class="tok-kw">if</span> (self.tokens_count > self.window_end - (self.window_end >> <span class="tok-number">4</span>)) {</span> <span class="line" id="L528"> <span class="tok-kw">try</span> self.hm_bw.writeBlockHuff(<span class="tok-null">false</span>, self.window[<span class="tok-number">0</span>..self.window_end]);</span> <span class="line" id="L529"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L530"> <span class="tok-kw">try</span> self.hm_bw.writeBlockDynamic(</span> <span class="line" id="L531"> self.tokens[<span class="tok-number">0</span>..self.tokens_count],</span> <span class="line" id="L532"> <span class="tok-null">false</span>,</span> <span class="line" id="L533"> self.window[<span class="tok-number">0</span>..self.window_end],</span> <span class="line" id="L534"> );</span> <span class="line" id="L535"> }</span> <span class="line" id="L536"> self.err = self.hm_bw.err;</span> <span class="line" id="L537"> self.window_end = <span class="tok-number">0</span>;</span> <span class="line" id="L538"> }</span> <span class="line" id="L539"></span> <span class="line" id="L540"> <span class="tok-kw">fn</span> <span class="tok-fn">initDeflate</span>(self: Self) !<span class="tok-type">void</span> {</span> <span class="line" id="L541"> self.window = <span class="tok-kw">try</span> self.allocator.alloc(<span class="tok-type">u8</span>, <span class="tok-number">2</span> * window_size);</span> <span class="line" id="L542"> self.hash_offset = <span class="tok-number">1</span>;</span> <span class="line" id="L543"> self.tokens = <span class="tok-kw">try</span> self.allocator.alloc(token.Token, max_flate_block_tokens);</span> <span class="line" id="L544"> self.tokens_count = <span class="tok-number">0</span>;</span> <span class="line" id="L545"> <span class="tok-builtin">@memset</span>(self.tokens, <span class="tok-number">0</span>);</span> <span class="line" id="L546"> self.length = min_match_length - <span class="tok-number">1</span>;</span> <span class="line" id="L547"> self.offset = <span class="tok-number">0</span>;</span> <span class="line" id="L548"> self.byte_available = <span class="tok-null">false</span>;</span> <span class="line" id="L549"> self.index = <span class="tok-number">0</span>;</span> <span class="line" id="L550"> self.hash = <span class="tok-number">0</span>;</span> <span class="line" id="L551"> self.chain_head = <span class="tok-number">0</span>;</span> <span class="line" id="L552"> self.bulk_hasher = bulkHash4;</span> <span class="line" id="L553"> }</span> <span class="line" id="L554"></span> <span class="line" id="L555"> <span class="tok-kw">fn</span> <span class="tok-fn">deflate</span>(self: Self) !<span class="tok-type">void</span> {</span> <span class="line" id="L556"> <span class="tok-kw">if</span> (self.window_end - self.index < min_match_length + max_match_length <span class="tok-kw">and</span> !self.sync) {</span> <span class="line" id="L557"> <span class="tok-kw">return</span>;</span> <span class="line" id="L558"> }</span> <span class="line" id="L559"></span> <span class="line" id="L560"> self.max_insert_index = self.window_end -\| (min_match_length - <span class="tok-number">1</span>);</span> <span class="line" id="L561"> <span class="tok-kw">if</span> (self.index < self.max_insert_index) {</span> <span class="line" id="L562"> self.hash = hash4(self.window[self.index .. self.index + min_match_length]);</span> <span class="line" id="L563"> }</span> <span class="line" id="L564"></span> <span class="line" id="L565"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L566"> assert(self.index <= self.window_end);</span> <span class="line" id="L567"></span> <span class="line" id="L568"> <span class="tok-kw">var</span> lookahead = self.window_end -\| self.index;</span> <span class="line" id="L569"> <span class="tok-kw">if</span> (lookahead < min_match_length + max_match_length) {</span> <span class="line" id="L570"> <span class="tok-kw">if</span> (!self.sync) {</span> <span class="line" id="L571"> <span class="tok-kw">break</span>;</span> <span class="line" id="L572"> }</span> <span class="line" id="L573"> assert(self.index <= self.window_end);</span> <span class="line" id="L574"></span> <span class="line" id="L575"> <span class="tok-kw">if</span> (lookahead == <span class="tok-number">0</span>) {</span> <span class="line" id="L576"> <span class="tok-comment">// Flush current output block if any.</span> </span> <span class="line" id="L577"> <span class="tok-kw">if</span> (self.byte_available) {</span> <span class="line" id="L578"> <span class="tok-comment">// There is still one pending token that needs to be flushed</span> </span> <span class="line" id="L579"> self.tokens[self.tokens_count] = token.literalToken(<span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(self.window[self.index - <span class="tok-number">1</span>])));</span> <span class="line" id="L580"> self.tokens_count += <span class="tok-number">1</span>;</span> <span class="line" id="L581"> self.byte_available = <span class="tok-null">false</span>;</span> <span class="line" id="L582"> }</span> <span class="line" id="L583"> <span class="tok-kw">if</span> (self.tokens.len > <span class="tok-number">0</span>) {</span> <span class="line" id="L584"> <span class="tok-kw">try</span> self.writeBlock(self.tokens[<span class="tok-number">0</span>..self.tokens_count], self.index);</span> <span class="line" id="L585"> self.tokens_count = <span class="tok-number">0</span>;</span> <span class="line" id="L586"> }</span> <span class="line" id="L587"> <span class="tok-kw">break</span>;</span> <span class="line" id="L588"> }</span> <span class="line" id="L589"> }</span> <span class="line" id="L590"> <span class="tok-kw">if</span> (self.index < self.max_insert_index) {</span> <span class="line" id="L591"> <span class="tok-comment">// Update the hash</span> </span> <span class="line" id="L592"> self.hash = hash4(self.window[self.index .. self.index + min_match_length]);</span> <span class="line" id="L593"> <span class="tok-kw">var</span> hh = &self.hash_head[self.hash & hash_mask];</span> <span class="line" id="L594"> self.chain_head = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(hh.));</span> <span class="line" id="L595"> self.hash_prev[self.index & window_mask] = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(self.chain_head));</span> <span class="line" id="L596"> hh.* = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(self.index + self.hash_offset));</span> <span class="line" id="L597"> }</span> <span class="line" id="L598"> <span class="tok-kw">var</span> prev_length = self.length;</span> <span class="line" id="L599"> <span class="tok-kw">var</span> prev_offset = self.offset;</span> <span class="line" id="L600"> self.length = min_match_length - <span class="tok-number">1</span>;</span> <span class="line" id="L601"> self.offset = <span class="tok-number">0</span>;</span> <span class="line" id="L602"> <span class="tok-kw">var</span> min_index = self.index -\| window_size;</span> <span class="line" id="L603"></span> <span class="line" id="L604"> <span class="tok-kw">if</span> (self.hash_offset <= self.chain_head <span class="tok-kw">and</span></span> <span class="line" id="L605"> self.chain_head - self.hash_offset >= min_index <span class="tok-kw">and</span></span> <span class="line" id="L606"> (self.compression_level.fast_skip_hashshing != skip_never <span class="tok-kw">and</span></span> <span class="line" id="L607"> lookahead > min_match_length - <span class="tok-number">1</span> <span class="tok-kw">or</span></span> <span class="line" id="L608"> self.compression_level.fast_skip_hashshing == skip_never <span class="tok-kw">and</span></span> <span class="line" id="L609"> lookahead > prev_length <span class="tok-kw">and</span></span> <span class="line" id="L610"> prev_length < self.compression_level.lazy))</span> <span class="line" id="L611"> {</span> <span class="line" id="L612"> {</span> <span class="line" id="L613"> <span class="tok-kw">var</span> fmatch = self.findMatch(</span> <span class="line" id="L614"> self.index,</span> <span class="line" id="L615"> self.chain_head -\| self.hash_offset,</span> <span class="line" id="L616"> min_match_length - <span class="tok-number">1</span>,</span> <span class="line" id="L617"> <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(lookahead)),</span> <span class="line" id="L618"> );</span> <span class="line" id="L619"> <span class="tok-kw">if</span> (fmatch.ok) {</span> <span class="line" id="L620"> self.length = fmatch.length;</span> <span class="line" id="L621"> self.offset = fmatch.offset;</span> <span class="line" id="L622"> }</span> <span class="line" id="L623"> }</span> <span class="line" id="L624"> }</span> <span class="line" id="L625"> <span class="tok-kw">if</span> (self.compression_level.fast_skip_hashshing != skip_never <span class="tok-kw">and</span></span> <span class="line" id="L626"> self.length >= min_match_length <span class="tok-kw">or</span></span> <span class="line" id="L627"> self.compression_level.fast_skip_hashshing == skip_never <span class="tok-kw">and</span></span> <span class="line" id="L628"> prev_length >= min_match_length <span class="tok-kw">and</span></span> <span class="line" id="L629"> self.length <= prev_length)</span> <span class="line" id="L630"> {</span> <span class="line" id="L631"> <span class="tok-comment">// There was a match at the previous step, and the current match is</span> </span> <span class="line" id="L632"> <span class="tok-comment">// not better. Output the previous match.</span> </span> <span class="line" id="L633"> <span class="tok-kw">if</span> (self.compression_level.fast_skip_hashshing != skip_never) {</span> <span class="line" id="L634"> self.tokens[self.tokens_count] = token.matchToken(<span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(self.length - base_match_length)), <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(self.offset - base_match_offset)));</span> <span class="line" id="L635"> self.tokens_count += <span class="tok-number">1</span>;</span> <span class="line" id="L636"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L637"> self.tokens[self.tokens_count] = token.matchToken(</span> <span class="line" id="L638"> <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(prev_length - base_match_length)),</span> <span class="line" id="L639"> <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(prev_offset -\| base_match_offset)),</span> <span class="line" id="L640"> );</span> <span class="line" id="L641"> self.tokens_count += <span class="tok-number">1</span>;</span> <span class="line" id="L642"> }</span> <span class="line" id="L643"> <span class="tok-comment">// Insert in the hash table all strings up to the end of the match.</span> </span> <span class="line" id="L644"> <span class="tok-comment">// index and index-1 are already inserted. If there is not enough</span> </span> <span class="line" id="L645"> <span class="tok-comment">// lookahead, the last two strings are not inserted into the hash</span> </span> <span class="line" id="L646"> <span class="tok-comment">// table.</span> </span> <span class="line" id="L647"> <span class="tok-kw">if</span> (self.length <= self.compression_level.fast_skip_hashshing) {</span> <span class="line" id="L648"> <span class="tok-kw">var</span> newIndex: <span class="tok-type">u32</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L649"> <span class="tok-kw">if</span> (self.compression_level.fast_skip_hashshing != skip_never) {</span> <span class="line" id="L650"> newIndex = self.index + self.length;</span> <span class="line" id="L651"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L652"> newIndex = self.index + prev_length - <span class="tok-number">1</span>;</span> <span class="line" id="L653"> }</span> <span class="line" id="L654"> <span class="tok-kw">var</span> index = self.index;</span> <span class="line" id="L655"> index += <span class="tok-number">1</span>;</span> <span class="line" id="L656"> <span class="tok-kw">while</span> (index < newIndex) : (index += <span class="tok-number">1</span>) {</span> <span class="line" id="L657"> <span class="tok-kw">if</span> (index < self.max_insert_index) {</span> <span class="line" id="L658"> self.hash = hash4(self.window[index .. index + min_match_length]);</span> <span class="line" id="L659"> <span class="tok-comment">// Get previous value with the same hash.</span> </span> <span class="line" id="L660"> <span class="tok-comment">// Our chain should point to the previous value.</span> </span> <span class="line" id="L661"> <span class="tok-kw">var</span> hh = &self.hash_head[self.hash & hash_mask];</span> <span class="line" id="L662"> self.hash_prev[index & window_mask] = hh.;</span> <span class="line" id="L663"> <span class="tok-comment">// Set the head of the hash chain to us.</span> </span> <span class="line" id="L664"> hh. = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(index + self.hash_offset));</span> <span class="line" id="L665"> }</span> <span class="line" id="L666"> }</span> <span class="line" id="L667"> self.index = index;</span> <span class="line" id="L668"></span> <span class="line" id="L669"> <span class="tok-kw">if</span> (self.compression_level.fast_skip_hashshing == skip_never) {</span> <span class="line" id="L670"> self.byte_available = <span class="tok-null">false</span>;</span> <span class="line" id="L671"> self.length = min_match_length - <span class="tok-number">1</span>;</span> <span class="line" id="L672"> }</span> <span class="line" id="L673"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L674"> <span class="tok-comment">// For matches this long, we don't bother inserting each individual</span> </span> <span class="line" id="L675"> <span class="tok-comment">// item into the table.</span> </span> <span class="line" id="L676"> self.index += self.length;</span> <span class="line" id="L677"> <span class="tok-kw">if</span> (self.index < self.max_insert_index) {</span> <span class="line" id="L678"> self.hash = hash4(self.window[self.index .. self.index + min_match_length]);</span> <span class="line" id="L679"> }</span> <span class="line" id="L680"> }</span> <span class="line" id="L681"> <span class="tok-kw">if</span> (self.tokens_count == max_flate_block_tokens) {</span> <span class="line" id="L682"> <span class="tok-comment">// The block includes the current character</span> </span> <span class="line" id="L683"> <span class="tok-kw">try</span> self.writeBlock(self.tokens[<span class="tok-number">0</span>..self.tokens_count], self.index);</span> <span class="line" id="L684"> self.tokens_count = <span class="tok-number">0</span>;</span> <span class="line" id="L685"> }</span> <span class="line" id="L686"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L687"> <span class="tok-kw">if</span> (self.compression_level.fast_skip_hashshing != skip_never <span class="tok-kw">or</span> self.byte_available) {</span> <span class="line" id="L688"> <span class="tok-kw">var</span> i = self.index -\| <span class="tok-number">1</span>;</span> <span class="line" id="L689"> <span class="tok-kw">if</span> (self.compression_level.fast_skip_hashshing != skip_never) {</span> <span class="line" id="L690"> i = self.index;</span> <span class="line" id="L691"> }</span> <span class="line" id="L692"> self.tokens[self.tokens_count] = token.literalToken(<span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(self.window[i])));</span> <span class="line" id="L693"> self.tokens_count += <span class="tok-number">1</span>;</span> <span class="line" id="L694"> <span class="tok-kw">if</span> (self.tokens_count == max_flate_block_tokens) {</span> <span class="line" id="L695"> <span class="tok-kw">try</span> self.writeBlock(self.tokens[<span class="tok-number">0</span>..self.tokens_count], i + <span class="tok-number">1</span>);</span> <span class="line" id="L696"> self.tokens_count = <span class="tok-number">0</span>;</span> <span class="line" id="L697"> }</span> <span class="line" id="L698"> }</span> <span class="line" id="L699"> self.index += <span class="tok-number">1</span>;</span> <span class="line" id="L700"> <span class="tok-kw">if</span> (self.compression_level.fast_skip_hashshing == skip_never) {</span> <span class="line" id="L701"> self.byte_available = <span class="tok-null">true</span>;</span> <span class="line" id="L702"> }</span> <span class="line" id="L703"> }</span> <span class="line" id="L704"> }</span> <span class="line" id="L705"> }</span> <span class="line" id="L706"></span> <span class="line" id="L707"> <span class="tok-kw">fn</span> <span class="tok-fn">fillStore</span>(self: Self, b: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">u32</span> {</span> <span class="line" id="L708"> <span class="tok-kw">const</span> n = std.compress.deflate.copy(self.window[self.window_end..], b);</span> <span class="line" id="L709"> self.window_end += n;</span> <span class="line" id="L710"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(n));</span> <span class="line" id="L711"> }</span> <span class="line" id="L712"></span> <span class="line" id="L713"> <span class="tok-kw">fn</span> <span class="tok-fn">store</span>(self: Self) !<span class="tok-type">void</span> {</span> <span class="line" id="L714"> <span class="tok-kw">if</span> (self.window_end > <span class="tok-number">0</span> <span class="tok-kw">and</span> (self.window_end == max_store_block_size <span class="tok-kw">or</span> self.sync)) {</span> <span class="line" id="L715"> <span class="tok-kw">try</span> self.writeStoredBlock(self.window[<span class="tok-number">0</span>..self.window_end]);</span> <span class="line" id="L716"> self.window_end = <span class="tok-number">0</span>;</span> <span class="line" id="L717"> }</span> <span class="line" id="L718"> }</span> <span class="line" id="L719"></span> <span class="line" id="L720"> <span class="tok-comment">// storeHuff compresses and stores the currently added data</span> </span> <span class="line" id="L721"> <span class="tok-comment">// when the self.window is full or we are at the end of the stream.</span> </span> <span class="line" id="L722"> <span class="tok-kw">fn</span> <span class="tok-fn">storeHuff</span>(self: Self) !<span class="tok-type">void</span> {</span> <span class="line" id="L723"> <span class="tok-kw">if</span> (self.window_end < self.window.len <span class="tok-kw">and</span> !self.sync <span class="tok-kw">or</span> self.window_end == <span class="tok-number">0</span>) {</span> <span class="line" id="L724"> <span class="tok-kw">return</span>;</span> <span class="line" id="L725"> }</span> <span class="line" id="L726"> <span class="tok-kw">try</span> self.hm_bw.writeBlockHuff(<span class="tok-null">false</span>, self.window[<span class="tok-number">0</span>..self.window_end]);</span> <span class="line" id="L727"> self.err = self.hm_bw.err;</span> <span class="line" id="L728"> self.window_end = <span class="tok-number">0</span>;</span> <span class="line" id="L729"> }</span> <span class="line" id="L730"></span> <span class="line" id="L731"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">bytesWritten</span>(self: Self) <span class="tok-type">usize</span> {</span> <span class="line" id="L732"> <span class="tok-kw">return</span> self.hm_bw.bytes_written;</span> <span class="line" id="L733"> }</span> <span class="line" id="L734"></span> <span class="line" id="L735"> <span class="tok-comment">/// Writes the compressed form of `input` to the underlying writer.</span></span> <span class="line" id="L736"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">write</span>(self: Self, input: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) !<span class="tok-type">usize</span> {</span> <span class="line" id="L737"> <span class="tok-kw">var</span> buf = input;</span> <span class="line" id="L738"></span> <span class="line" id="L739"> <span class="tok-comment">// writes data to hm_bw, which will eventually write the</span> </span> <span class="line" id="L740"> <span class="tok-comment">// compressed form of data to its underlying writer.</span> </span> <span class="line" id="L741"> <span class="tok-kw">while</span> (buf.len > <span class="tok-number">0</span>) {</span> <span class="line" id="L742"> <span class="tok-kw">try</span> self.step();</span> <span class="line" id="L743"> <span class="tok-kw">var</span> filled = self.fill(buf);</span> <span class="line" id="L744"> buf = buf[filled..];</span> <span class="line" id="L745"> }</span> <span class="line" id="L746"></span> <span class="line" id="L747"> <span class="tok-kw">return</span> input.len;</span> <span class="line" id="L748"> }</span> <span class="line" id="L749"></span> <span class="line" id="L750"> <span class="tok-comment">/// Flushes any pending data to the underlying writer.</span></span> <span class="line" id="L751"> <span class="tok-comment">/// It is useful mainly in compressed network protocols, to ensure that</span></span> <span class="line" id="L752"> <span class="tok-comment">/// a remote reader has enough data to reconstruct a packet.</span></span> <span class="line" id="L753"> <span class="tok-comment">/// Flush does not return until the data has been written.</span></span> <span class="line" id="L754"> <span class="tok-comment">/// Calling `flush()` when there is no pending data still causes the Writer</span></span> <span class="line" id="L755"> <span class="tok-comment">/// to emit a sync marker of at least 4 bytes.</span></span> <span class="line" id="L756"> <span class="tok-comment">/// If the underlying writer returns an error, `flush()` returns that error.</span></span> <span class="line" id="L757"> <span class="tok-comment">///</span></span> <span class="line" id="L758"> <span class="tok-comment">/// In the terminology of the zlib library, Flush is equivalent to Z_SYNC_FLUSH.</span></span> <span class="line" id="L759"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">flush</span>(self: Self) !<span class="tok-type">void</span> {</span> <span class="line" id="L760"> self.sync = <span class="tok-null">true</span>;</span> <span class="line" id="L761"> <span class="tok-kw">try</span> self.step();</span> <span class="line" id="L762"> <span class="tok-kw">try</span> self.hm_bw.writeStoredHeader(<span class="tok-number">0</span>, <span class="tok-null">false</span>);</span> <span class="line" id="L763"> <span class="tok-kw">try</span> self.hm_bw.flush();</span> <span class="line" id="L764"> self.sync = <span class="tok-null">false</span>;</span> <span class="line" id="L765"> <span class="tok-kw">return</span>;</span> <span class="line" id="L766"> }</span> <span class="line" id="L767"></span> <span class="line" id="L768"> <span class="tok-kw">fn</span> <span class="tok-fn">step</span>(self: Self) !<span class="tok-type">void</span> {</span> <span class="line" id="L769"> <span class="tok-kw">switch</span> (self.compression) {</span> <span class="line" id="L770"> .no_compression => <span class="tok-kw">return</span> self.store(),</span> <span class="line" id="L771"> .huffman_only => <span class="tok-kw">return</span> self.storeHuff(),</span> <span class="line" id="L772"> .best_speed => <span class="tok-kw">return</span> self.encSpeed(),</span> <span class="line" id="L773"> .default_compression,</span> <span class="line" id="L774"> .level_2,</span> <span class="line" id="L775"> .level_3,</span> <span class="line" id="L776"> .level_4,</span> <span class="line" id="L777"> .level_5,</span> <span class="line" id="L778"> .level_6,</span> <span class="line" id="L779"> .level_7,</span> <span class="line" id="L780"> .level_8,</span> <span class="line" id="L781"> .best_compression,</span> <span class="line" id="L782"> => <span class="tok-kw">return</span> self.deflate(),</span> <span class="line" id="L783"> }</span> <span class="line" id="L784"> }</span> <span class="line" id="L785"></span> <span class="line" id="L786"> <span class="tok-kw">fn</span> <span class="tok-fn">fill</span>(self: Self, b: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">u32</span> {</span> <span class="line" id="L787"> <span class="tok-kw">switch</span> (self.compression) {</span> <span class="line" id="L788"> .no_compression => <span class="tok-kw">return</span> self.fillStore(b),</span> <span class="line" id="L789"> .huffman_only => <span class="tok-kw">return</span> self.fillStore(b),</span> <span class="line" id="L790"> .best_speed => <span class="tok-kw">return</span> self.fillStore(b),</span> <span class="line" id="L791"> .default_compression,</span> <span class="line" id="L792"> .level_2,</span> <span class="line" id="L793"> .level_3,</span> <span class="line" id="L794"> .level_4,</span> <span class="line" id="L795"> .level_5,</span> <span class="line" id="L796"> .level_6,</span> <span class="line" id="L797"> .level_7,</span> <span class="line" id="L798"> .level_8,</span> <span class="line" id="L799"> .best_compression,</span> <span class="line" id="L800"> => <span class="tok-kw">return</span> self.fillDeflate(b),</span> <span class="line" id="L801"> }</span> <span class="line" id="L802"> }</span> <span class="line" id="L803"></span> <span class="line" id="L804"> <span class="tok-kw">fn</span> <span class="tok-fn">init</span>(</span> <span class="line" id="L805"> allocator: Allocator,</span> <span class="line" id="L806"> in_writer: WriterType,</span> <span class="line" id="L807"> options: CompressorOptions,</span> <span class="line" id="L808"> ) !Self {</span> <span class="line" id="L809"> <span class="tok-kw">var</span> s = Self{</span> <span class="line" id="L810"> .allocator = <span class="tok-null">undefined</span>,</span> <span class="line" id="L811"> .compression = <span class="tok-null">undefined</span>,</span> <span class="line" id="L812"> .compression_level = <span class="tok-null">undefined</span>,</span> <span class="line" id="L813"> .hm_bw = <span class="tok-null">undefined</span>, <span class="tok-comment">// HuffmanBitWriter</span> </span> <span class="line" id="L814"> .bulk_hasher = <span class="tok-null">undefined</span>,</span> <span class="line" id="L815"> .sync = <span class="tok-null">false</span>,</span> <span class="line" id="L816"> .best_speed_enc = <span class="tok-null">undefined</span>, <span class="tok-comment">// Best speed encoder</span> </span> <span class="line" id="L817"> .chain_head = <span class="tok-number">0</span>,</span> <span class="line" id="L818"> .hash_head = <span class="tok-null">undefined</span>,</span> <span class="line" id="L819"> .hash_prev = <span class="tok-null">undefined</span>, <span class="tok-comment">// previous hash</span> </span> <span class="line" id="L820"> .hash_offset = <span class="tok-number">0</span>,</span> <span class="line" id="L821"> .index = <span class="tok-number">0</span>,</span> <span class="line" id="L822"> .window = <span class="tok-null">undefined</span>,</span> <span class="line" id="L823"> .window_end = <span class="tok-number">0</span>,</span> <span class="line" id="L824"> .block_start = <span class="tok-number">0</span>,</span> <span class="line" id="L825"> .byte_available = <span class="tok-null">false</span>,</span> <span class="line" id="L826"> .tokens = <span class="tok-null">undefined</span>,</span> <span class="line" id="L827"> .tokens_count = <span class="tok-number">0</span>,</span> <span class="line" id="L828"> .length = <span class="tok-number">0</span>,</span> <span class="line" id="L829"> .offset = <span class="tok-number">0</span>,</span> <span class="line" id="L830"> .hash = <span class="tok-number">0</span>,</span> <span class="line" id="L831"> .max_insert_index = <span class="tok-number">0</span>,</span> <span class="line" id="L832"> .err = <span class="tok-null">false</span>, <span class="tok-comment">// Error</span> </span> <span class="line" id="L833"> .hash_match = <span class="tok-null">undefined</span>,</span> <span class="line" id="L834"> .dictionary = options.dictionary,</span> <span class="line" id="L835"> };</span> <span class="line" id="L836"></span> <span class="line" id="L837"> s.hm_bw = <span class="tok-kw">try</span> hm_bw.huffmanBitWriter(allocator, in_writer);</span> <span class="line" id="L838"> s.allocator = allocator;</span> <span class="line" id="L839"></span> <span class="line" id="L840"> s.hash_head = <span class="tok-kw">try</span> allocator.alloc(<span class="tok-type">u32</span>, hash_size);</span> <span class="line" id="L841"> s.hash_prev = <span class="tok-kw">try</span> allocator.alloc(<span class="tok-type">u32</span>, window_size);</span> <span class="line" id="L842"> s.hash_match = <span class="tok-kw">try</span> allocator.alloc(<span class="tok-type">u32</span>, max_match_length - <span class="tok-number">1</span>);</span> <span class="line" id="L843"> <span class="tok-builtin">@memset</span>(s.hash_head, <span class="tok-number">0</span>);</span> <span class="line" id="L844"> <span class="tok-builtin">@memset</span>(s.hash_prev, <span class="tok-number">0</span>);</span> <span class="line" id="L845"> <span class="tok-builtin">@memset</span>(s.hash_match, <span class="tok-number">0</span>);</span> <span class="line" id="L846"></span> <span class="line" id="L847"> <span class="tok-kw">switch</span> (options.level) {</span> <span class="line" id="L848"> .no_compression => {</span> <span class="line" id="L849"> s.compression = options.level;</span> <span class="line" id="L850"> s.compression_level = levels(options.level);</span> <span class="line" id="L851"> s.window = <span class="tok-kw">try</span> allocator.alloc(<span class="tok-type">u8</span>, max_store_block_size);</span> <span class="line" id="L852"> s.tokens = <span class="tok-kw">try</span> allocator.alloc(token.Token, <span class="tok-number">0</span>);</span> <span class="line" id="L853"> },</span> <span class="line" id="L854"> .huffman_only => {</span> <span class="line" id="L855"> s.compression = options.level;</span> <span class="line" id="L856"> s.compression_level = levels(options.level);</span> <span class="line" id="L857"> s.window = <span class="tok-kw">try</span> allocator.alloc(<span class="tok-type">u8</span>, max_store_block_size);</span> <span class="line" id="L858"> s.tokens = <span class="tok-kw">try</span> allocator.alloc(token.Token, <span class="tok-number">0</span>);</span> <span class="line" id="L859"> },</span> <span class="line" id="L860"> .best_speed => {</span> <span class="line" id="L861"> s.compression = options.level;</span> <span class="line" id="L862"> s.compression_level = levels(options.level);</span> <span class="line" id="L863"> s.window = <span class="tok-kw">try</span> allocator.alloc(<span class="tok-type">u8</span>, max_store_block_size);</span> <span class="line" id="L864"> s.tokens = <span class="tok-kw">try</span> allocator.alloc(token.Token, max_store_block_size);</span> <span class="line" id="L865"> s.best_speed_enc = <span class="tok-kw">try</span> allocator.create(fast.DeflateFast);</span> <span class="line" id="L866"> s.best_speed_enc.* = fast.deflateFast();</span> <span class="line" id="L867"> <span class="tok-kw">try</span> s.best_speed_enc.init(allocator);</span> <span class="line" id="L868"> },</span> <span class="line" id="L869"> .default_compression => {</span> <span class="line" id="L870"> s.compression = .level_6;</span> <span class="line" id="L871"> s.compression_level = levels(.level_6);</span> <span class="line" id="L872"> <span class="tok-kw">try</span> s.initDeflate();</span> <span class="line" id="L873"> <span class="tok-kw">if</span> (options.dictionary != <span class="tok-null">null</span>) {</span> <span class="line" id="L874"> s.fillWindow(options.dictionary.?);</span> <span class="line" id="L875"> }</span> <span class="line" id="L876"> },</span> <span class="line" id="L877"> .level_2,</span> <span class="line" id="L878"> .level_3,</span> <span class="line" id="L879"> .level_4,</span> <span class="line" id="L880"> .level_5,</span> <span class="line" id="L881"> .level_6,</span> <span class="line" id="L882"> .level_7,</span> <span class="line" id="L883"> .level_8,</span> <span class="line" id="L884"> .best_compression,</span> <span class="line" id="L885"> => {</span> <span class="line" id="L886"> s.compression = options.level;</span> <span class="line" id="L887"> s.compression_level = levels(options.level);</span> <span class="line" id="L888"> <span class="tok-kw">try</span> s.initDeflate();</span> <span class="line" id="L889"> <span class="tok-kw">if</span> (options.dictionary != <span class="tok-null">null</span>) {</span> <span class="line" id="L890"> s.fillWindow(options.dictionary.?);</span> <span class="line" id="L891"> }</span> <span class="line" id="L892"> },</span> <span class="line" id="L893"> }</span> <span class="line" id="L894"> <span class="tok-kw">return</span> s;</span> <span class="line" id="L895"> }</span> <span class="line" id="L896"></span> <span class="line" id="L897"> <span class="tok-comment">/// Release all allocated memory.</span></span> <span class="line" id="L898"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">deinit</span>(self: Self) <span class="tok-type">void</span> {</span> <span class="line" id="L899"> self.hm_bw.deinit();</span> <span class="line" id="L900"> self.allocator.free(self.window);</span> <span class="line" id="L901"> self.allocator.free(self.tokens);</span> <span class="line" id="L902"> self.allocator.free(self.hash_head);</span> <span class="line" id="L903"> self.allocator.free(self.hash_prev);</span> <span class="line" id="L904"> self.allocator.free(self.hash_match);</span> <span class="line" id="L905"> <span class="tok-kw">if</span> (self.compression == .best_speed) {</span> <span class="line" id="L906"> self.best_speed_enc.deinit();</span> <span class="line" id="L907"> self.allocator.destroy(self.best_speed_enc);</span> <span class="line" id="L908"> }</span> <span class="line" id="L909"> }</span> <span class="line" id="L910"></span> <span class="line" id="L911"> <span class="tok-comment">/// Reset discards the inner writer's state and replace the inner writer with new_writer.</span></span> <span class="line" id="L912"> <span class="tok-comment">/// new_writer must be of the same type as the previous writer.</span></span> <span class="line" id="L913"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">reset</span>(self: Self, new_writer: WriterType) <span class="tok-type">void</span> {</span> <span class="line" id="L914"> self.hm_bw.reset(new_writer);</span> <span class="line" id="L915"> self.sync = <span class="tok-null">false</span>;</span> <span class="line" id="L916"> <span class="tok-kw">switch</span> (self.compression) {</span> <span class="line" id="L917"> <span class="tok-comment">// Reset window</span> </span> <span class="line" id="L918"> .no_compression => self.window_end = <span class="tok-number">0</span>,</span> <span class="line" id="L919"> <span class="tok-comment">// Reset window, tokens, and encoder</span> </span> <span class="line" id="L920"> .best_speed => {</span> <span class="line" id="L921"> self.window_end = <span class="tok-number">0</span>;</span> <span class="line" id="L922"> self.tokens_count = <span class="tok-number">0</span>;</span> <span class="line" id="L923"> self.best_speed_enc.reset();</span> <span class="line" id="L924"> },</span> <span class="line" id="L925"> <span class="tok-comment">// Reset everything and reinclude the dictionary if there is one</span> </span> <span class="line" id="L926"> .huffman_only,</span> <span class="line" id="L927"> .default_compression,</span> <span class="line" id="L928"> .level_2,</span> <span class="line" id="L929"> .level_3,</span> <span class="line" id="L930"> .level_4,</span> <span class="line" id="L931"> .level_5,</span> <span class="line" id="L932"> .level_6,</span> <span class="line" id="L933"> .level_7,</span> <span class="line" id="L934"> .level_8,</span> <span class="line" id="L935"> .best_compression,</span> <span class="line" id="L936"> => {</span> <span class="line" id="L937"> self.chain_head = <span class="tok-number">0</span>;</span> <span class="line" id="L938"> <span class="tok-builtin">@memset</span>(self.hash_head, <span class="tok-number">0</span>);</span> <span class="line" id="L939"> <span class="tok-builtin">@memset</span>(self.hash_prev, <span class="tok-number">0</span>);</span> <span class="line" id="L940"> self.hash_offset = <span class="tok-number">1</span>;</span> <span class="line" id="L941"> self.index = <span class="tok-number">0</span>;</span> <span class="line" id="L942"> self.window_end = <span class="tok-number">0</span>;</span> <span class="line" id="L943"> self.block_start = <span class="tok-number">0</span>;</span> <span class="line" id="L944"> self.byte_available = <span class="tok-null">false</span>;</span> <span class="line" id="L945"> self.tokens_count = <span class="tok-number">0</span>;</span> <span class="line" id="L946"> self.length = min_match_length - <span class="tok-number">1</span>;</span> <span class="line" id="L947"> self.offset = <span class="tok-number">0</span>;</span> <span class="line" id="L948"> self.hash = <span class="tok-number">0</span>;</span> <span class="line" id="L949"> self.max_insert_index = <span class="tok-number">0</span>;</span> <span class="line" id="L950"></span> <span class="line" id="L951"> <span class="tok-kw">if</span> (self.dictionary != <span class="tok-null">null</span>) {</span> <span class="line" id="L952"> self.fillWindow(self.dictionary.?);</span> <span class="line" id="L953"> }</span> <span class="line" id="L954"> },</span> <span class="line" id="L955"> }</span> <span class="line" id="L956"> }</span> <span class="line" id="L957"></span> <span class="line" id="L958"> <span class="tok-comment">/// Writes any pending data to the underlying writer.</span></span> <span class="line" id="L959"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">close</span>(self: Self) !<span class="tok-type">void</span> {</span> <span class="line" id="L960"> self.sync = <span class="tok-null">true</span>;</span> <span class="line" id="L961"> <span class="tok-kw">try</span> self.step();</span> <span class="line" id="L962"> <span class="tok-kw">try</span> self.hm_bw.writeStoredHeader(<span class="tok-number">0</span>, <span class="tok-null">true</span>);</span> <span class="line" id="L963"> <span class="tok-kw">try</span> self.hm_bw.flush();</span> <span class="line" id="L964"> <span class="tok-kw">return</span>;</span> <span class="line" id="L965"> }</span> <span class="line" id="L966"> };</span> <span class="line" id="L967">}</span> <span class="line" id="L968"></span> <span class="line" id="L969"><span class="tok-comment">// tests</span> </span> <span class="line" id="L970"></span> <span class="line" id="L971"><span class="tok-kw">const</span> expect = std.testing.expect;</span> <span class="line" id="L972"><span class="tok-kw">const</span> testing = std.testing;</span> <span class="line" id="L973"></span> <span class="line" id="L974"><span class="tok-kw">const</span> ArrayList = std.ArrayList;</span> <span class="line" id="L975"></span> <span class="line" id="L976"><span class="tok-kw">const</span> DeflateTest = <span class="tok-kw">struct</span> {</span> <span class="line" id="L977"> in: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L978"> level: Compression,</span> <span class="line" id="L979"> out: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L980">};</span> <span class="line" id="L981"></span> <span class="line" id="L982"><span class="tok-kw">var</span> deflate_tests = [_]DeflateTest{</span> <span class="line" id="L983"> <span class="tok-comment">// Level 0</span> </span> <span class="line" id="L984"> .{</span> <span class="line" id="L985"> .in = &[_]<span class="tok-type">u8</span>{},</span> <span class="line" id="L986"> .level = .no_compression,</span> <span class="line" id="L987"> .out = &[_]<span class="tok-type">u8</span>{ <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">255</span>, <span class="tok-number">255</span> },</span> <span class="line" id="L988"> },</span> <span class="line" id="L989"></span> <span class="line" id="L990"> <span class="tok-comment">// Level -1</span> </span> <span class="line" id="L991"> .{</span> <span class="line" id="L992"> .in = &[_]<span class="tok-type">u8</span>{<span class="tok-number">0x11</span>},</span> <span class="line" id="L993"> .level = .default_compression,</span> <span class="line" id="L994"> .out = &[_]<span class="tok-type">u8</span>{ <span class="tok-number">18</span>, <span class="tok-number">4</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">255</span>, <span class="tok-number">255</span> },</span> <span class="line" id="L995"> },</span> <span class="line" id="L996"> .{</span> <span class="line" id="L997"> .in = &[_]<span class="tok-type">u8</span>{<span class="tok-number">0x11</span>},</span> <span class="line" id="L998"> .level = .level_6,</span> <span class="line" id="L999"> .out = &[_]<span class="tok-type">u8</span>{ <span class="tok-number">18</span>, <span class="tok-number">4</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">255</span>, <span class="tok-number">255</span> },</span> <span class="line" id="L1000"> },</span> <span class="line" id="L1001"></span> <span class="line" id="L1002"> <span class="tok-comment">// Level 4</span> </span> <span class="line" id="L1003"> .{</span> <span class="line" id="L1004"> .in = &[_]<span class="tok-type">u8</span>{<span class="tok-number">0x11</span>},</span> <span class="line" id="L1005"> .level = .level_4,</span> <span class="line" id="L1006"> .out = &[_]<span class="tok-type">u8</span>{ <span class="tok-number">18</span>, <span class="tok-number">4</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">255</span>, <span class="tok-number">255</span> },</span> <span class="line" id="L1007"> },</span> <span class="line" id="L1008"></span> <span class="line" id="L1009"> <span class="tok-comment">// Level 0</span> </span> <span class="line" id="L1010"> .{</span> <span class="line" id="L1011"> .in = &[_]<span class="tok-type">u8</span>{<span class="tok-number">0x11</span>},</span> <span class="line" id="L1012"> .level = .no_compression,</span> <span class="line" id="L1013"> .out = &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">254</span>, <span class="tok-number">255</span>, <span class="tok-number">17</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">255</span>, <span class="tok-number">255</span> },</span> <span class="line" id="L1014"> },</span> <span class="line" id="L1015"> .{</span> <span class="line" id="L1016"> .in = &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x11</span>, <span class="tok-number">0x12</span> },</span> <span class="line" id="L1017"> .level = .no_compression,</span> <span class="line" id="L1018"> .out = &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0</span>, <span class="tok-number">2</span>, <span class="tok-number">0</span>, <span class="tok-number">253</span>, <span class="tok-number">255</span>, <span class="tok-number">17</span>, <span class="tok-number">18</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">255</span>, <span class="tok-number">255</span> },</span> <span class="line" id="L1019"> },</span> <span class="line" id="L1020"> .{</span> <span class="line" id="L1021"> .in = &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x11</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0x11</span> },</span> <span class="line" id="L1022"> .level = .no_compression,</span> <span class="line" id="L1023"> .out = &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0</span>, <span class="tok-number">8</span>, <span class="tok-number">0</span>, <span class="tok-number">247</span>, <span class="tok-number">255</span>, <span class="tok-number">17</span>, <span class="tok-number">17</span>, <span class="tok-number">17</span>, <span class="tok-number">17</span>, <span class="tok-number">17</span>, <span class="tok-number">17</span>, <span class="tok-number">17</span>, <span class="tok-number">17</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">255</span>, <span class="tok-number">255</span> },</span> <span class="line" id="L1024"> },</span> <span class="line" id="L1025"></span> <span class="line" id="L1026"> <span class="tok-comment">// Level 2</span> </span> <span class="line" id="L1027"> .{</span> <span class="line" id="L1028"> .in = &[_]<span class="tok-type">u8</span>{},</span> <span class="line" id="L1029"> .level = .level_2,</span> <span class="line" id="L1030"> .out = &[_]<span class="tok-type">u8</span>{ <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">255</span>, <span class="tok-number">255</span> },</span> <span class="line" id="L1031"> },</span> <span class="line" id="L1032"> .{</span> <span class="line" id="L1033"> .in = &[_]<span class="tok-type">u8</span>{<span class="tok-number">0x11</span>},</span> <span class="line" id="L1034"> .level = .level_2,</span> <span class="line" id="L1035"> .out = &[_]<span class="tok-type">u8</span>{ <span class="tok-number">18</span>, <span class="tok-number">4</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">255</span>, <span class="tok-number">255</span> },</span> <span class="line" id="L1036"> },</span> <span class="line" id="L1037"> .{</span> <span class="line" id="L1038"> .in = &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x11</span>, <span class="tok-number">0x12</span> },</span> <span class="line" id="L1039"> .level = .level_2,</span> <span class="line" id="L1040"> .out = &[_]<span class="tok-type">u8</span>{ <span class="tok-number">18</span>, <span class="tok-number">20</span>, <span class="tok-number">2</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">255</span>, <span class="tok-number">255</span> },</span> <span class="line" id="L1041"> },</span> <span class="line" id="L1042"> .{</span> <span class="line" id="L1043"> .in = &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x11</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0x11</span> },</span> <span class="line" id="L1044"> .level = .level_2,</span> <span class="line" id="L1045"> .out = &[_]<span class="tok-type">u8</span>{ <span class="tok-number">18</span>, <span class="tok-number">132</span>, <span class="tok-number">2</span>, <span class="tok-number">64</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">255</span>, <span class="tok-number">255</span> },</span> <span class="line" id="L1046"> },</span> <span class="line" id="L1047"></span> <span class="line" id="L1048"> <span class="tok-comment">// Level 9</span> </span> <span class="line" id="L1049"> .{</span> <span class="line" id="L1050"> .in = &[_]<span class="tok-type">u8</span>{},</span> <span class="line" id="L1051"> .level = .best_compression,</span> <span class="line" id="L1052"> .out = &[_]<span class="tok-type">u8</span>{ <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">255</span>, <span class="tok-number">255</span> },</span> <span class="line" id="L1053"> },</span> <span class="line" id="L1054"> .{</span> <span class="line" id="L1055"> .in = &[_]<span class="tok-type">u8</span>{<span class="tok-number">0x11</span>},</span> <span class="line" id="L1056"> .level = .best_compression,</span> <span class="line" id="L1057"> .out = &[_]<span class="tok-type">u8</span>{ <span class="tok-number">18</span>, <span class="tok-number">4</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">255</span>, <span class="tok-number">255</span> },</span> <span class="line" id="L1058"> },</span> <span class="line" id="L1059"> .{</span> <span class="line" id="L1060"> .in = &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x11</span>, <span class="tok-number">0x12</span> },</span> <span class="line" id="L1061"> .level = .best_compression,</span> <span class="line" id="L1062"> .out = &[_]<span class="tok-type">u8</span>{ <span class="tok-number">18</span>, <span class="tok-number">20</span>, <span class="tok-number">2</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">255</span>, <span class="tok-number">255</span> },</span> <span class="line" id="L1063"> },</span> <span class="line" id="L1064"> .{</span> <span class="line" id="L1065"> .in = &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x11</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0x11</span> },</span> <span class="line" id="L1066"> .level = .best_compression,</span> <span class="line" id="L1067"> .out = &[_]<span class="tok-type">u8</span>{ <span class="tok-number">18</span>, <span class="tok-number">132</span>, <span class="tok-number">2</span>, <span class="tok-number">64</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">255</span>, <span class="tok-number">255</span> },</span> <span class="line" id="L1068"> },</span> <span class="line" id="L1069">};</span> <span class="line" id="L1070"></span> <span class="line" id="L1071"><span class="tok-kw">test</span> <span class="tok-str">"deflate"</span> {</span> <span class="line" id="L1072"> <span class="tok-kw">for</span> (deflate_tests) \|dt\| {</span> <span class="line" id="L1073"> <span class="tok-kw">var</span> output = ArrayList(<span class="tok-type">u8</span>).init(testing.allocator);</span> <span class="line" id="L1074"> <span class="tok-kw">defer</span> output.deinit();</span> <span class="line" id="L1075"></span> <span class="line" id="L1076"> <span class="tok-kw">var</span> comp = <span class="tok-kw">try</span> compressor(testing.allocator, output.writer(), .{ .level = dt.level });</span> <span class="line" id="L1077"> _ = <span class="tok-kw">try</span> comp.write(dt.in);</span> <span class="line" id="L1078"> <span class="tok-kw">try</span> comp.close();</span> <span class="line" id="L1079"> comp.deinit();</span> <span class="line" id="L1080"></span> <span class="line" id="L1081"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, dt.out, output.items);</span> <span class="line" id="L1082"> }</span> <span class="line" id="L1083">}</span> <span class="line" id="L1084"></span> <span class="line" id="L1085"><span class="tok-kw">test</span> <span class="tok-str">"bulkHash4"</span> {</span> <span class="line" id="L1086"> <span class="tok-kw">for</span> (deflate_tests) \|x\| {</span> <span class="line" id="L1087"> <span class="tok-kw">if</span> (x.out.len < min_match_length) {</span> <span class="line" id="L1088"> <span class="tok-kw">continue</span>;</span> <span class="line" id="L1089"> }</span> <span class="line" id="L1090"> <span class="tok-comment">// double the test data</span> </span> <span class="line" id="L1091"> <span class="tok-kw">var</span> out = <span class="tok-kw">try</span> testing.allocator.alloc(<span class="tok-type">u8</span>, x.out.len <span class="tok-number">2</span>);</span> <span class="line" id="L1092"> <span class="tok-kw">defer</span> testing.allocator.free(out);</span> <span class="line" id="L1093"> <span class="tok-builtin">@memcpy</span>(out[<span class="tok-number">0</span>..x.out.len], x.out);</span> <span class="line" id="L1094"> <span class="tok-builtin">@memcpy</span>(out[x.out.len..], x.out);</span> <span class="line" id="L1095"></span> <span class="line" id="L1096"> <span class="tok-kw">var</span> j: <span class="tok-type">usize</span> = <span class="tok-number">4</span>;</span> <span class="line" id="L1097"> <span class="tok-kw">while</span> (j < out.len) : (j += <span class="tok-number">1</span>) {</span> <span class="line" id="L1098"> <span class="tok-kw">var</span> y = out[<span class="tok-number">0</span>..j];</span> <span class="line" id="L1099"></span> <span class="line" id="L1100"> <span class="tok-kw">var</span> dst = <span class="tok-kw">try</span> testing.allocator.alloc(<span class="tok-type">u32</span>, y.len - min_match_length + <span class="tok-number">1</span>);</span> <span class="line" id="L1101"> <span class="tok-kw">defer</span> testing.allocator.free(dst);</span> <span class="line" id="L1102"></span> <span class="line" id="L1103"> _ = bulkHash4(y, dst);</span> <span class="line" id="L1104"> <span class="tok-kw">for</span> (dst, <span class="tok-number">0</span>..) \|got, i\| {</span> <span class="line" id="L1105"> <span class="tok-kw">var</span> want = hash4(y[i..]);</span> <span class="line" id="L1106"> <span class="tok-kw">try</span> testing.expectEqual(want, got);</span> <span class="line" id="L1107"> }</span> <span class="line" id="L1108"> }</span> <span class="line" id="L1109"> }</span> <span class="line" id="L1110">}</span> <span class="line" id="L1111"></span> </code></pre></body> </html>
repos/yazap/docs/src/std/compress	repos/yazap/docs/src/std/compress/deflate/deflate_const.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>compress/deflate/deflate_const.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-comment">// Deflate</span> </span> <span class="line" id="L2"></span> <span class="line" id="L3"><span class="tok-comment">// Biggest block size for uncompressed block.</span> </span> <span class="line" id="L4"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> max_store_block_size = <span class="tok-number">65535</span>;</span> <span class="line" id="L5"><span class="tok-comment">// The special code used to mark the end of a block.</span> </span> <span class="line" id="L6"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> end_block_marker = <span class="tok-number">256</span>;</span> <span class="line" id="L7"></span> <span class="line" id="L8"><span class="tok-comment">// LZ77</span> </span> <span class="line" id="L9"></span> <span class="line" id="L10"><span class="tok-comment">// The smallest match length per the RFC section 3.2.5</span> </span> <span class="line" id="L11"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> base_match_length = <span class="tok-number">3</span>;</span> <span class="line" id="L12"><span class="tok-comment">// The smallest match offset.</span> </span> <span class="line" id="L13"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> base_match_offset = <span class="tok-number">1</span>;</span> <span class="line" id="L14"><span class="tok-comment">// The largest match length.</span> </span> <span class="line" id="L15"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> max_match_length = <span class="tok-number">258</span>;</span> <span class="line" id="L16"><span class="tok-comment">// The largest match offset.</span> </span> <span class="line" id="L17"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> max_match_offset = <span class="tok-number">1</span> << <span class="tok-number">15</span>;</span> <span class="line" id="L18"></span> <span class="line" id="L19"><span class="tok-comment">// Huffman Codes</span> </span> <span class="line" id="L20"></span> <span class="line" id="L21"><span class="tok-comment">// The largest offset code.</span> </span> <span class="line" id="L22"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> offset_code_count = <span class="tok-number">30</span>;</span> <span class="line" id="L23"><span class="tok-comment">// Max number of frequencies used for a Huffman Code</span> </span> <span class="line" id="L24"><span class="tok-comment">// Possible lengths are codegenCodeCount (19), offset_code_count (30) and max_num_lit (286).</span> </span> <span class="line" id="L25"><span class="tok-comment">// The largest of these is max_num_lit.</span> </span> <span class="line" id="L26"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> max_num_frequencies = max_num_lit;</span> <span class="line" id="L27"><span class="tok-comment">// Maximum number of literals.</span> </span> <span class="line" id="L28"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> max_num_lit = <span class="tok-number">286</span>;</span> <span class="line" id="L29"></span> </code></pre></body> </html>
repos/yazap/docs/src/std/compress	repos/yazap/docs/src/std/compress/deflate/dict_decoder.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>compress/deflate/dict_decoder.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> assert = std.debug.assert;</span> <span class="line" id="L3"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L4"></span> <span class="line" id="L5"><span class="tok-kw">const</span> Allocator = std.mem.Allocator;</span> <span class="line" id="L6"></span> <span class="line" id="L7"><span class="tok-comment">// Implements the LZ77 sliding dictionary as used in decompression.</span> </span> <span class="line" id="L8"><span class="tok-comment">// LZ77 decompresses data through sequences of two forms of commands:</span> </span> <span class="line" id="L9"><span class="tok-comment">//</span> </span> <span class="line" id="L10"><span class="tok-comment">// * Literal insertions: Runs of one or more symbols are inserted into the data</span> </span> <span class="line" id="L11"><span class="tok-comment">// stream as is. This is accomplished through the writeByte method for a</span> </span> <span class="line" id="L12"><span class="tok-comment">// single symbol, or combinations of writeSlice/writeMark for multiple symbols.</span> </span> <span class="line" id="L13"><span class="tok-comment">// Any valid stream must start with a literal insertion if no preset dictionary</span> </span> <span class="line" id="L14"><span class="tok-comment">// is used.</span> </span> <span class="line" id="L15"><span class="tok-comment">//</span> </span> <span class="line" id="L16"><span class="tok-comment">// * Backward copies: Runs of one or more symbols are copied from previously</span> </span> <span class="line" id="L17"><span class="tok-comment">// emitted data. Backward copies come as the tuple (dist, length) where dist</span> </span> <span class="line" id="L18"><span class="tok-comment">// determines how far back in the stream to copy from and length determines how</span> </span> <span class="line" id="L19"><span class="tok-comment">// many bytes to copy. Note that it is valid for the length to be greater than</span> </span> <span class="line" id="L20"><span class="tok-comment">// the distance. Since LZ77 uses forward copies, that situation is used to</span> </span> <span class="line" id="L21"><span class="tok-comment">// perform a form of run-length encoding on repeated runs of symbols.</span> </span> <span class="line" id="L22"><span class="tok-comment">// The writeCopy and tryWriteCopy are used to implement this command.</span> </span> <span class="line" id="L23"><span class="tok-comment">//</span> </span> <span class="line" id="L24"><span class="tok-comment">// For performance reasons, this implementation performs little to no sanity</span> </span> <span class="line" id="L25"><span class="tok-comment">// checks about the arguments. As such, the invariants documented for each</span> </span> <span class="line" id="L26"><span class="tok-comment">// method call must be respected.</span> </span> <span class="line" id="L27"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> DictDecoder = <span class="tok-kw">struct</span> {</span> <span class="line" id="L28"> <span class="tok-kw">const</span> Self = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L29"></span> <span class="line" id="L30"> allocator: Allocator = <span class="tok-null">undefined</span>,</span> <span class="line" id="L31"></span> <span class="line" id="L32"> hist: []<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>, <span class="tok-comment">// Sliding window history</span> </span> <span class="line" id="L33"></span> <span class="line" id="L34"> <span class="tok-comment">// Invariant: 0 <= rd_pos <= wr_pos <= hist.len</span> </span> <span class="line" id="L35"> wr_pos: <span class="tok-type">u32</span> = <span class="tok-number">0</span>, <span class="tok-comment">// Current output position in buffer</span> </span> <span class="line" id="L36"> rd_pos: <span class="tok-type">u32</span> = <span class="tok-number">0</span>, <span class="tok-comment">// Have emitted hist[0..rd_pos] already</span> </span> <span class="line" id="L37"> full: <span class="tok-type">bool</span> = <span class="tok-null">false</span>, <span class="tok-comment">// Has a full window length been written yet?</span> </span> <span class="line" id="L38"></span> <span class="line" id="L39"> <span class="tok-comment">// init initializes DictDecoder to have a sliding window dictionary of the given</span> </span> <span class="line" id="L40"> <span class="tok-comment">// size. If a preset dict is provided, it will initialize the dictionary with</span> </span> <span class="line" id="L41"> <span class="tok-comment">// the contents of dict.</span> </span> <span class="line" id="L42"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">init</span>(self: Self, allocator: Allocator, size: <span class="tok-type">u32</span>, dict: ?[]<span class="tok-kw">const</span> <span class="tok-type">u8</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L43"> self.allocator = allocator;</span> <span class="line" id="L44"></span> <span class="line" id="L45"> self.hist = <span class="tok-kw">try</span> allocator.alloc(<span class="tok-type">u8</span>, size);</span> <span class="line" id="L46"></span> <span class="line" id="L47"> self.wr_pos = <span class="tok-number">0</span>;</span> <span class="line" id="L48"></span> <span class="line" id="L49"> <span class="tok-kw">if</span> (dict != <span class="tok-null">null</span>) {</span> <span class="line" id="L50"> <span class="tok-kw">const</span> src = dict.?[dict.?.len -\| self.hist.len..];</span> <span class="line" id="L51"> <span class="tok-builtin">@memcpy</span>(self.hist[<span class="tok-number">0</span>..src.len], src);</span> <span class="line" id="L52"> self.wr_pos = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(dict.?.len));</span> <span class="line" id="L53"> }</span> <span class="line" id="L54"></span> <span class="line" id="L55"> <span class="tok-kw">if</span> (self.wr_pos == self.hist.len) {</span> <span class="line" id="L56"> self.wr_pos = <span class="tok-number">0</span>;</span> <span class="line" id="L57"> self.full = <span class="tok-null">true</span>;</span> <span class="line" id="L58"> }</span> <span class="line" id="L59"> self.rd_pos = self.wr_pos;</span> <span class="line" id="L60"> }</span> <span class="line" id="L61"></span> <span class="line" id="L62"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">deinit</span>(self: Self) <span class="tok-type">void</span> {</span> <span class="line" id="L63"> self.allocator.free(self.hist);</span> <span class="line" id="L64"> }</span> <span class="line" id="L65"></span> <span class="line" id="L66"> <span class="tok-comment">// Reports the total amount of historical data in the dictionary.</span> </span> <span class="line" id="L67"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">histSize</span>(self: Self) <span class="tok-type">u32</span> {</span> <span class="line" id="L68"> <span class="tok-kw">if</span> (self.full) {</span> <span class="line" id="L69"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(self.hist.len));</span> <span class="line" id="L70"> }</span> <span class="line" id="L71"> <span class="tok-kw">return</span> self.wr_pos;</span> <span class="line" id="L72"> }</span> <span class="line" id="L73"></span> <span class="line" id="L74"> <span class="tok-comment">// Reports the number of bytes that can be flushed by readFlush.</span> </span> <span class="line" id="L75"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">availRead</span>(self: Self) <span class="tok-type">u32</span> {</span> <span class="line" id="L76"> <span class="tok-kw">return</span> self.wr_pos - self.rd_pos;</span> <span class="line" id="L77"> }</span> <span class="line" id="L78"></span> <span class="line" id="L79"> <span class="tok-comment">// Reports the available amount of output buffer space.</span> </span> <span class="line" id="L80"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">availWrite</span>(self: Self) <span class="tok-type">u32</span> {</span> <span class="line" id="L81"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(self.hist.len - self.wr_pos));</span> <span class="line" id="L82"> }</span> <span class="line" id="L83"></span> <span class="line" id="L84"> <span class="tok-comment">// Returns a slice of the available buffer to write data to.</span> </span> <span class="line" id="L85"> <span class="tok-comment">//</span> </span> <span class="line" id="L86"> <span class="tok-comment">// This invariant will be kept: s.len <= availWrite()</span> </span> <span class="line" id="L87"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">writeSlice</span>(self: Self) []<span class="tok-type">u8</span> {</span> <span class="line" id="L88"> <span class="tok-kw">return</span> self.hist[self.wr_pos..];</span> <span class="line" id="L89"> }</span> <span class="line" id="L90"></span> <span class="line" id="L91"> <span class="tok-comment">// Advances the writer pointer by `count`.</span> </span> <span class="line" id="L92"> <span class="tok-comment">//</span> </span> <span class="line" id="L93"> <span class="tok-comment">// This invariant must be kept: 0 <= count <= availWrite()</span> </span> <span class="line" id="L94"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">writeMark</span>(self: Self, count: <span class="tok-type">u32</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L95"> assert(<span class="tok-number">0</span> <= count <span class="tok-kw">and</span> count <= self.availWrite());</span> <span class="line" id="L96"> self.wr_pos += count;</span> <span class="line" id="L97"> }</span> <span class="line" id="L98"></span> <span class="line" id="L99"> <span class="tok-comment">// Writes a single byte to the dictionary.</span> </span> <span class="line" id="L100"> <span class="tok-comment">//</span> </span> <span class="line" id="L101"> <span class="tok-comment">// This invariant must be kept: 0 < availWrite()</span> </span> <span class="line" id="L102"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">writeByte</span>(self: Self, byte: <span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L103"> self.hist[self.wr_pos] = byte;</span> <span class="line" id="L104"> self.wr_pos += <span class="tok-number">1</span>;</span> <span class="line" id="L105"> }</span> <span class="line" id="L106"></span> <span class="line" id="L107"> <span class="tok-comment">/// TODO: eliminate this function because the callsites should care about whether</span></span> <span class="line" id="L108"> <span class="tok-comment">/// or not their arguments alias and then they should directly call `@memcpy` or</span></span> <span class="line" id="L109"> <span class="tok-comment">/// `mem.copyForwards`.</span></span> <span class="line" id="L110"> <span class="tok-kw">fn</span> <span class="tok-fn">copy</span>(dst: []<span class="tok-type">u8</span>, src: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">u32</span> {</span> <span class="line" id="L111"> <span class="tok-kw">if</span> (src.len > dst.len) {</span> <span class="line" id="L112"> mem.copyForwards(<span class="tok-type">u8</span>, dst, src[<span class="tok-number">0</span>..dst.len]);</span> <span class="line" id="L113"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(dst.len));</span> <span class="line" id="L114"> }</span> <span class="line" id="L115"> mem.copyForwards(<span class="tok-type">u8</span>, dst[<span class="tok-number">0</span>..src.len], src);</span> <span class="line" id="L116"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(src.len));</span> <span class="line" id="L117"> }</span> <span class="line" id="L118"></span> <span class="line" id="L119"> <span class="tok-comment">// Copies a string at a given (dist, length) to the output.</span> </span> <span class="line" id="L120"> <span class="tok-comment">// This returns the number of bytes copied and may be less than the requested</span> </span> <span class="line" id="L121"> <span class="tok-comment">// length if the available space in the output buffer is too small.</span> </span> <span class="line" id="L122"> <span class="tok-comment">//</span> </span> <span class="line" id="L123"> <span class="tok-comment">// This invariant must be kept: 0 < dist <= histSize()</span> </span> <span class="line" id="L124"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">writeCopy</span>(self: Self, dist: <span class="tok-type">u32</span>, length: <span class="tok-type">u32</span>) <span class="tok-type">u32</span> {</span> <span class="line" id="L125"> assert(<span class="tok-number">0</span> < dist <span class="tok-kw">and</span> dist <= self.histSize());</span> <span class="line" id="L126"> <span class="tok-kw">var</span> dst_base = self.wr_pos;</span> <span class="line" id="L127"> <span class="tok-kw">var</span> dst_pos = dst_base;</span> <span class="line" id="L128"> <span class="tok-kw">var</span> src_pos: <span class="tok-type">i32</span> = <span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, <span class="tok-builtin">@intCast</span>(dst_pos)) - <span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, <span class="tok-builtin">@intCast</span>(dist));</span> <span class="line" id="L129"> <span class="tok-kw">var</span> end_pos = dst_pos + length;</span> <span class="line" id="L130"> <span class="tok-kw">if</span> (end_pos > self.hist.len) {</span> <span class="line" id="L131"> end_pos = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(self.hist.len));</span> <span class="line" id="L132"> }</span> <span class="line" id="L133"></span> <span class="line" id="L134"> <span class="tok-comment">// Copy non-overlapping section after destination position.</span> </span> <span class="line" id="L135"> <span class="tok-comment">//</span> </span> <span class="line" id="L136"> <span class="tok-comment">// This section is non-overlapping in that the copy length for this section</span> </span> <span class="line" id="L137"> <span class="tok-comment">// is always less than or equal to the backwards distance. This can occur</span> </span> <span class="line" id="L138"> <span class="tok-comment">// if a distance refers to data that wraps-around in the buffer.</span> </span> <span class="line" id="L139"> <span class="tok-comment">// Thus, a backwards copy is performed here; that is, the exact bytes in</span> </span> <span class="line" id="L140"> <span class="tok-comment">// the source prior to the copy is placed in the destination.</span> </span> <span class="line" id="L141"> <span class="tok-kw">if</span> (src_pos < <span class="tok-number">0</span>) {</span> <span class="line" id="L142"> src_pos += <span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, <span class="tok-builtin">@intCast</span>(self.hist.len));</span> <span class="line" id="L143"> dst_pos += copy(self.hist[dst_pos..end_pos], self.hist[<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(src_pos))..]);</span> <span class="line" id="L144"> src_pos = <span class="tok-number">0</span>;</span> <span class="line" id="L145"> }</span> <span class="line" id="L146"></span> <span class="line" id="L147"> <span class="tok-comment">// Copy possibly overlapping section before destination position.</span> </span> <span class="line" id="L148"> <span class="tok-comment">//</span> </span> <span class="line" id="L149"> <span class="tok-comment">// This section can overlap if the copy length for this section is larger</span> </span> <span class="line" id="L150"> <span class="tok-comment">// than the backwards distance. This is allowed by LZ77 so that repeated</span> </span> <span class="line" id="L151"> <span class="tok-comment">// strings can be succinctly represented using (dist, length) pairs.</span> </span> <span class="line" id="L152"> <span class="tok-comment">// Thus, a forwards copy is performed here; that is, the bytes copied is</span> </span> <span class="line" id="L153"> <span class="tok-comment">// possibly dependent on the resulting bytes in the destination as the copy</span> </span> <span class="line" id="L154"> <span class="tok-comment">// progresses along. This is functionally equivalent to the following:</span> </span> <span class="line" id="L155"> <span class="tok-comment">//</span> </span> <span class="line" id="L156"> <span class="tok-comment">// var i = 0;</span> </span> <span class="line" id="L157"> <span class="tok-comment">// while(i < end_pos - dst_pos) : (i+=1) {</span> </span> <span class="line" id="L158"> <span class="tok-comment">// self.hist[dst_pos+i] = self.hist[src_pos+i];</span> </span> <span class="line" id="L159"> <span class="tok-comment">// }</span> </span> <span class="line" id="L160"> <span class="tok-comment">// dst_pos = end_pos;</span> </span> <span class="line" id="L161"> <span class="tok-comment">//</span> </span> <span class="line" id="L162"> <span class="tok-kw">while</span> (dst_pos < end_pos) {</span> <span class="line" id="L163"> dst_pos += copy(self.hist[dst_pos..end_pos], self.hist[<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(src_pos))..dst_pos]);</span> <span class="line" id="L164"> }</span> <span class="line" id="L165"></span> <span class="line" id="L166"> self.wr_pos = dst_pos;</span> <span class="line" id="L167"> <span class="tok-kw">return</span> dst_pos - dst_base;</span> <span class="line" id="L168"> }</span> <span class="line" id="L169"></span> <span class="line" id="L170"> <span class="tok-comment">// Tries to copy a string at a given (distance, length) to the</span> </span> <span class="line" id="L171"> <span class="tok-comment">// output. This specialized version is optimized for short distances.</span> </span> <span class="line" id="L172"> <span class="tok-comment">//</span> </span> <span class="line" id="L173"> <span class="tok-comment">// This method is designed to be inlined for performance reasons.</span> </span> <span class="line" id="L174"> <span class="tok-comment">//</span> </span> <span class="line" id="L175"> <span class="tok-comment">// This invariant must be kept: 0 < dist <= histSize()</span> </span> <span class="line" id="L176"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">tryWriteCopy</span>(self: Self, dist: <span class="tok-type">u32</span>, length: <span class="tok-type">u32</span>) <span class="tok-type">u32</span> {</span> <span class="line" id="L177"> <span class="tok-kw">var</span> dst_pos = self.wr_pos;</span> <span class="line" id="L178"> <span class="tok-kw">var</span> end_pos = dst_pos + length;</span> <span class="line" id="L179"> <span class="tok-kw">if</span> (dst_pos < dist <span class="tok-kw">or</span> end_pos > self.hist.len) {</span> <span class="line" id="L180"> <span class="tok-kw">return</span> <span class="tok-number">0</span>;</span> <span class="line" id="L181"> }</span> <span class="line" id="L182"> <span class="tok-kw">var</span> dst_base = dst_pos;</span> <span class="line" id="L183"> <span class="tok-kw">var</span> src_pos = dst_pos - dist;</span> <span class="line" id="L184"></span> <span class="line" id="L185"> <span class="tok-comment">// Copy possibly overlapping section before destination position.</span> </span> <span class="line" id="L186"> <span class="tok-kw">while</span> (dst_pos < end_pos) {</span> <span class="line" id="L187"> dst_pos += copy(self.hist[dst_pos..end_pos], self.hist[src_pos..dst_pos]);</span> <span class="line" id="L188"> }</span> <span class="line" id="L189"></span> <span class="line" id="L190"> self.wr_pos = dst_pos;</span> <span class="line" id="L191"> <span class="tok-kw">return</span> dst_pos - dst_base;</span> <span class="line" id="L192"> }</span> <span class="line" id="L193"></span> <span class="line" id="L194"> <span class="tok-comment">// Returns a slice of the historical buffer that is ready to be</span> </span> <span class="line" id="L195"> <span class="tok-comment">// emitted to the user. The data returned by readFlush must be fully consumed</span> </span> <span class="line" id="L196"> <span class="tok-comment">// before calling any other DictDecoder methods.</span> </span> <span class="line" id="L197"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">readFlush</span>(self: Self) []<span class="tok-type">u8</span> {</span> <span class="line" id="L198"> <span class="tok-kw">var</span> to_read = self.hist[self.rd_pos..self.wr_pos];</span> <span class="line" id="L199"> self.rd_pos = self.wr_pos;</span> <span class="line" id="L200"> <span class="tok-kw">if</span> (self.wr_pos == self.hist.len) {</span> <span class="line" id="L201"> self.wr_pos = <span class="tok-number">0</span>;</span> <span class="line" id="L202"> self.rd_pos = <span class="tok-number">0</span>;</span> <span class="line" id="L203"> self.full = <span class="tok-null">true</span>;</span> <span class="line" id="L204"> }</span> <span class="line" id="L205"> <span class="tok-kw">return</span> to_read;</span> <span class="line" id="L206"> }</span> <span class="line" id="L207">};</span> <span class="line" id="L208"></span> <span class="line" id="L209"><span class="tok-comment">// tests</span> </span> <span class="line" id="L210"></span> <span class="line" id="L211"><span class="tok-kw">test</span> <span class="tok-str">"dictionary decoder"</span> {</span> <span class="line" id="L212"> <span class="tok-kw">const</span> ArrayList = std.ArrayList;</span> <span class="line" id="L213"> <span class="tok-kw">const</span> testing = std.testing;</span> <span class="line" id="L214"></span> <span class="line" id="L215"> <span class="tok-kw">const</span> abc = <span class="tok-str">"ABC\n"</span>;</span> <span class="line" id="L216"> <span class="tok-kw">const</span> fox = <span class="tok-str">"The quick brown fox jumped over the lazy dog!\n"</span>;</span> <span class="line" id="L217"> <span class="tok-kw">const</span> poem: []<span class="tok-kw">const</span> <span class="tok-type">u8</span> =</span> <span class="line" id="L218"> <span class="tok-str">\\The Road Not Taken</span></span> <span class="line" id="L219"> <span class="tok-str">\\Robert Frost</span></span> <span class="line" id="L220"> <span class="tok-str">\\</span></span> <span class="line" id="L221"> <span class="tok-str">\\Two roads diverged in a yellow wood,</span></span> <span class="line" id="L222"> <span class="tok-str">\\And sorry I could not travel both</span></span> <span class="line" id="L223"> <span class="tok-str">\\And be one traveler, long I stood</span></span> <span class="line" id="L224"> <span class="tok-str">\\And looked down one as far as I could</span></span> <span class="line" id="L225"> <span class="tok-str">\\To where it bent in the undergrowth;</span></span> <span class="line" id="L226"> <span class="tok-str">\\</span></span> <span class="line" id="L227"> <span class="tok-str">\\Then took the other, as just as fair,</span></span> <span class="line" id="L228"> <span class="tok-str">\\And having perhaps the better claim,</span></span> <span class="line" id="L229"> <span class="tok-str">\\Because it was grassy and wanted wear;</span></span> <span class="line" id="L230"> <span class="tok-str">\\Though as for that the passing there</span></span> <span class="line" id="L231"> <span class="tok-str">\\Had worn them really about the same,</span></span> <span class="line" id="L232"> <span class="tok-str">\\</span></span> <span class="line" id="L233"> <span class="tok-str">\\And both that morning equally lay</span></span> <span class="line" id="L234"> <span class="tok-str">\\In leaves no step had trodden black.</span></span> <span class="line" id="L235"> <span class="tok-str">\\Oh, I kept the first for another day!</span></span> <span class="line" id="L236"> <span class="tok-str">\\Yet knowing how way leads on to way,</span></span> <span class="line" id="L237"> <span class="tok-str">\\I doubted if I should ever come back.</span></span> <span class="line" id="L238"> <span class="tok-str">\\</span></span> <span class="line" id="L239"> <span class="tok-str">\\I shall be telling this with a sigh</span></span> <span class="line" id="L240"> <span class="tok-str">\\Somewhere ages and ages hence:</span></span> <span class="line" id="L241"> <span class="tok-str">\\Two roads diverged in a wood, and I-</span></span> <span class="line" id="L242"> <span class="tok-str">\\I took the one less traveled by,</span></span> <span class="line" id="L243"> <span class="tok-str">\\And that has made all the difference.</span></span> <span class="line" id="L244"> <span class="tok-str">\\</span></span> <span class="line" id="L245"> ;</span> <span class="line" id="L246"></span> <span class="line" id="L247"> <span class="tok-kw">const</span> uppercase: []<span class="tok-kw">const</span> <span class="tok-type">u8</span> =</span> <span class="line" id="L248"> <span class="tok-str">\\THE ROAD NOT TAKEN</span></span> <span class="line" id="L249"> <span class="tok-str">\\ROBERT FROST</span></span> <span class="line" id="L250"> <span class="tok-str">\\</span></span> <span class="line" id="L251"> <span class="tok-str">\\TWO ROADS DIVERGED IN A YELLOW WOOD,</span></span> <span class="line" id="L252"> <span class="tok-str">\\AND SORRY I COULD NOT TRAVEL BOTH</span></span> <span class="line" id="L253"> <span class="tok-str">\\AND BE ONE TRAVELER, LONG I STOOD</span></span> <span class="line" id="L254"> <span class="tok-str">\\AND LOOKED DOWN ONE AS FAR AS I COULD</span></span> <span class="line" id="L255"> <span class="tok-str">\\TO WHERE IT BENT IN THE UNDERGROWTH;</span></span> <span class="line" id="L256"> <span class="tok-str">\\</span></span> <span class="line" id="L257"> <span class="tok-str">\\THEN TOOK THE OTHER, AS JUST AS FAIR,</span></span> <span class="line" id="L258"> <span class="tok-str">\\AND HAVING PERHAPS THE BETTER CLAIM,</span></span> <span class="line" id="L259"> <span class="tok-str">\\BECAUSE IT WAS GRASSY AND WANTED WEAR;</span></span> <span class="line" id="L260"> <span class="tok-str">\\THOUGH AS FOR THAT THE PASSING THERE</span></span> <span class="line" id="L261"> <span class="tok-str">\\HAD WORN THEM REALLY ABOUT THE SAME,</span></span> <span class="line" id="L262"> <span class="tok-str">\\</span></span> <span class="line" id="L263"> <span class="tok-str">\\AND BOTH THAT MORNING EQUALLY LAY</span></span> <span class="line" id="L264"> <span class="tok-str">\\IN LEAVES NO STEP HAD TRODDEN BLACK.</span></span> <span class="line" id="L265"> <span class="tok-str">\\OH, I KEPT THE FIRST FOR ANOTHER DAY!</span></span> <span class="line" id="L266"> <span class="tok-str">\\YET KNOWING HOW WAY LEADS ON TO WAY,</span></span> <span class="line" id="L267"> <span class="tok-str">\\I DOUBTED IF I SHOULD EVER COME BACK.</span></span> <span class="line" id="L268"> <span class="tok-str">\\</span></span> <span class="line" id="L269"> <span class="tok-str">\\I SHALL BE TELLING THIS WITH A SIGH</span></span> <span class="line" id="L270"> <span class="tok-str">\\SOMEWHERE AGES AND AGES HENCE:</span></span> <span class="line" id="L271"> <span class="tok-str">\\TWO ROADS DIVERGED IN A WOOD, AND I-</span></span> <span class="line" id="L272"> <span class="tok-str">\\I TOOK THE ONE LESS TRAVELED BY,</span></span> <span class="line" id="L273"> <span class="tok-str">\\AND THAT HAS MADE ALL THE DIFFERENCE.</span></span> <span class="line" id="L274"> <span class="tok-str">\\</span></span> <span class="line" id="L275"> ;</span> <span class="line" id="L276"></span> <span class="line" id="L277"> <span class="tok-kw">const</span> PoemRefs = <span class="tok-kw">struct</span> {</span> <span class="line" id="L278"> dist: <span class="tok-type">u32</span>, <span class="tok-comment">// Backward distance (0 if this is an insertion)</span> </span> <span class="line" id="L279"> length: <span class="tok-type">u32</span>, <span class="tok-comment">// Length of copy or insertion</span> </span> <span class="line" id="L280"> };</span> <span class="line" id="L281"></span> <span class="line" id="L282"> <span class="tok-kw">var</span> poem_refs = [_]PoemRefs{</span> <span class="line" id="L283"> .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">38</span> }, .{ .dist = <span class="tok-number">33</span>, .length = <span class="tok-number">3</span> }, .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">48</span> },</span> <span class="line" id="L284"> .{ .dist = <span class="tok-number">79</span>, .length = <span class="tok-number">3</span> }, .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">11</span> }, .{ .dist = <span class="tok-number">34</span>, .length = <span class="tok-number">5</span> },</span> <span class="line" id="L285"> .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">6</span> }, .{ .dist = <span class="tok-number">23</span>, .length = <span class="tok-number">7</span> }, .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">8</span> },</span> <span class="line" id="L286"> .{ .dist = <span class="tok-number">50</span>, .length = <span class="tok-number">3</span> }, .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">2</span> }, .{ .dist = <span class="tok-number">69</span>, .length = <span class="tok-number">3</span> },</span> <span class="line" id="L287"> .{ .dist = <span class="tok-number">34</span>, .length = <span class="tok-number">5</span> }, .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">4</span> }, .{ .dist = <span class="tok-number">97</span>, .length = <span class="tok-number">3</span> },</span> <span class="line" id="L288"> .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">4</span> }, .{ .dist = <span class="tok-number">43</span>, .length = <span class="tok-number">5</span> }, .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">6</span> },</span> <span class="line" id="L289"> .{ .dist = <span class="tok-number">7</span>, .length = <span class="tok-number">4</span> }, .{ .dist = <span class="tok-number">88</span>, .length = <span class="tok-number">7</span> }, .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">12</span> },</span> <span class="line" id="L290"> .{ .dist = <span class="tok-number">80</span>, .length = <span class="tok-number">3</span> }, .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">2</span> }, .{ .dist = <span class="tok-number">141</span>, .length = <span class="tok-number">4</span> },</span> <span class="line" id="L291"> .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">1</span> }, .{ .dist = <span class="tok-number">196</span>, .length = <span class="tok-number">3</span> }, .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">3</span> },</span> <span class="line" id="L292"> .{ .dist = <span class="tok-number">157</span>, .length = <span class="tok-number">3</span> }, .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">6</span> }, .{ .dist = <span class="tok-number">181</span>, .length = <span class="tok-number">3</span> },</span> <span class="line" id="L293"> .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">2</span> }, .{ .dist = <span class="tok-number">23</span>, .length = <span class="tok-number">3</span> }, .{ .dist = <span class="tok-number">77</span>, .length = <span class="tok-number">3</span> },</span> <span class="line" id="L294"> .{ .dist = <span class="tok-number">28</span>, .length = <span class="tok-number">5</span> }, .{ .dist = <span class="tok-number">128</span>, .length = <span class="tok-number">3</span> }, .{ .dist = <span class="tok-number">110</span>, .length = <span class="tok-number">4</span> },</span> <span class="line" id="L295"> .{ .dist = <span class="tok-number">70</span>, .length = <span class="tok-number">3</span> }, .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">4</span> }, .{ .dist = <span class="tok-number">85</span>, .length = <span class="tok-number">6</span> },</span> <span class="line" id="L296"> .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">2</span> }, .{ .dist = <span class="tok-number">182</span>, .length = <span class="tok-number">6</span> }, .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">4</span> },</span> <span class="line" id="L297"> .{ .dist = <span class="tok-number">133</span>, .length = <span class="tok-number">3</span> }, .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">7</span> }, .{ .dist = <span class="tok-number">47</span>, .length = <span class="tok-number">5</span> },</span> <span class="line" id="L298"> .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">20</span> }, .{ .dist = <span class="tok-number">112</span>, .length = <span class="tok-number">5</span> }, .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">1</span> },</span> <span class="line" id="L299"> .{ .dist = <span class="tok-number">58</span>, .length = <span class="tok-number">3</span> }, .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">8</span> }, .{ .dist = <span class="tok-number">59</span>, .length = <span class="tok-number">3</span> },</span> <span class="line" id="L300"> .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">4</span> }, .{ .dist = <span class="tok-number">173</span>, .length = <span class="tok-number">3</span> }, .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">5</span> },</span> <span class="line" id="L301"> .{ .dist = <span class="tok-number">114</span>, .length = <span class="tok-number">3</span> }, .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">4</span> }, .{ .dist = <span class="tok-number">92</span>, .length = <span class="tok-number">5</span> },</span> <span class="line" id="L302"> .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">2</span> }, .{ .dist = <span class="tok-number">71</span>, .length = <span class="tok-number">3</span> }, .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">2</span> },</span> <span class="line" id="L303"> .{ .dist = <span class="tok-number">76</span>, .length = <span class="tok-number">5</span> }, .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">1</span> }, .{ .dist = <span class="tok-number">46</span>, .length = <span class="tok-number">3</span> },</span> <span class="line" id="L304"> .{ .dist = <span class="tok-number">96</span>, .length = <span class="tok-number">4</span> }, .{ .dist = <span class="tok-number">130</span>, .length = <span class="tok-number">4</span> }, .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">3</span> },</span> <span class="line" id="L305"> .{ .dist = <span class="tok-number">360</span>, .length = <span class="tok-number">3</span> }, .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">3</span> }, .{ .dist = <span class="tok-number">178</span>, .length = <span class="tok-number">5</span> },</span> <span class="line" id="L306"> .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">7</span> }, .{ .dist = <span class="tok-number">75</span>, .length = <span class="tok-number">3</span> }, .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">3</span> },</span> <span class="line" id="L307"> .{ .dist = <span class="tok-number">45</span>, .length = <span class="tok-number">6</span> }, .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">6</span> }, .{ .dist = <span class="tok-number">299</span>, .length = <span class="tok-number">6</span> },</span> <span class="line" id="L308"> .{ .dist = <span class="tok-number">180</span>, .length = <span class="tok-number">3</span> }, .{ .dist = <span class="tok-number">70</span>, .length = <span class="tok-number">6</span> }, .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">1</span> },</span> <span class="line" id="L309"> .{ .dist = <span class="tok-number">48</span>, .length = <span class="tok-number">3</span> }, .{ .dist = <span class="tok-number">66</span>, .length = <span class="tok-number">4</span> }, .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">3</span> },</span> <span class="line" id="L310"> .{ .dist = <span class="tok-number">47</span>, .length = <span class="tok-number">5</span> }, .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">9</span> }, .{ .dist = <span class="tok-number">325</span>, .length = <span class="tok-number">3</span> },</span> <span class="line" id="L311"> .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">1</span> }, .{ .dist = <span class="tok-number">359</span>, .length = <span class="tok-number">3</span> }, .{ .dist = <span class="tok-number">318</span>, .length = <span class="tok-number">3</span> },</span> <span class="line" id="L312"> .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">2</span> }, .{ .dist = <span class="tok-number">199</span>, .length = <span class="tok-number">3</span> }, .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">1</span> },</span> <span class="line" id="L313"> .{ .dist = <span class="tok-number">344</span>, .length = <span class="tok-number">3</span> }, .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">3</span> }, .{ .dist = <span class="tok-number">248</span>, .length = <span class="tok-number">3</span> },</span> <span class="line" id="L314"> .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">10</span> }, .{ .dist = <span class="tok-number">310</span>, .length = <span class="tok-number">3</span> }, .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">3</span> },</span> <span class="line" id="L315"> .{ .dist = <span class="tok-number">93</span>, .length = <span class="tok-number">6</span> }, .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">3</span> }, .{ .dist = <span class="tok-number">252</span>, .length = <span class="tok-number">3</span> },</span> <span class="line" id="L316"> .{ .dist = <span class="tok-number">157</span>, .length = <span class="tok-number">4</span> }, .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">2</span> }, .{ .dist = <span class="tok-number">273</span>, .length = <span class="tok-number">5</span> },</span> <span class="line" id="L317"> .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">14</span> }, .{ .dist = <span class="tok-number">99</span>, .length = <span class="tok-number">4</span> }, .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">1</span> },</span> <span class="line" id="L318"> .{ .dist = <span class="tok-number">464</span>, .length = <span class="tok-number">4</span> }, .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">2</span> }, .{ .dist = <span class="tok-number">92</span>, .length = <span class="tok-number">4</span> },</span> <span class="line" id="L319"> .{ .dist = <span class="tok-number">495</span>, .length = <span class="tok-number">3</span> }, .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">1</span> }, .{ .dist = <span class="tok-number">322</span>, .length = <span class="tok-number">4</span> },</span> <span class="line" id="L320"> .{ .dist = <span class="tok-number">16</span>, .length = <span class="tok-number">4</span> }, .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">3</span> }, .{ .dist = <span class="tok-number">402</span>, .length = <span class="tok-number">3</span> },</span> <span class="line" id="L321"> .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">2</span> }, .{ .dist = <span class="tok-number">237</span>, .length = <span class="tok-number">4</span> }, .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">2</span> },</span> <span class="line" id="L322"> .{ .dist = <span class="tok-number">432</span>, .length = <span class="tok-number">4</span> }, .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">1</span> }, .{ .dist = <span class="tok-number">483</span>, .length = <span class="tok-number">5</span> },</span> <span class="line" id="L323"> .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">2</span> }, .{ .dist = <span class="tok-number">294</span>, .length = <span class="tok-number">4</span> }, .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">2</span> },</span> <span class="line" id="L324"> .{ .dist = <span class="tok-number">306</span>, .length = <span class="tok-number">3</span> }, .{ .dist = <span class="tok-number">113</span>, .length = <span class="tok-number">5</span> }, .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">1</span> },</span> <span class="line" id="L325"> .{ .dist = <span class="tok-number">26</span>, .length = <span class="tok-number">4</span> }, .{ .dist = <span class="tok-number">164</span>, .length = <span class="tok-number">3</span> }, .{ .dist = <span class="tok-number">488</span>, .length = <span class="tok-number">4</span> },</span> <span class="line" id="L326"> .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">1</span> }, .{ .dist = <span class="tok-number">542</span>, .length = <span class="tok-number">3</span> }, .{ .dist = <span class="tok-number">248</span>, .length = <span class="tok-number">6</span> },</span> <span class="line" id="L327"> .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">5</span> }, .{ .dist = <span class="tok-number">205</span>, .length = <span class="tok-number">3</span> }, .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">8</span> },</span> <span class="line" id="L328"> .{ .dist = <span class="tok-number">48</span>, .length = <span class="tok-number">3</span> }, .{ .dist = <span class="tok-number">449</span>, .length = <span class="tok-number">6</span> }, .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">2</span> },</span> <span class="line" id="L329"> .{ .dist = <span class="tok-number">192</span>, .length = <span class="tok-number">3</span> }, .{ .dist = <span class="tok-number">328</span>, .length = <span class="tok-number">4</span> }, .{ .dist = <span class="tok-number">9</span>, .length = <span class="tok-number">5</span> },</span> <span class="line" id="L330"> .{ .dist = <span class="tok-number">433</span>, .length = <span class="tok-number">3</span> }, .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">3</span> }, .{ .dist = <span class="tok-number">622</span>, .length = <span class="tok-number">25</span> },</span> <span class="line" id="L331"> .{ .dist = <span class="tok-number">615</span>, .length = <span class="tok-number">5</span> }, .{ .dist = <span class="tok-number">46</span>, .length = <span class="tok-number">5</span> }, .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">2</span> },</span> <span class="line" id="L332"> .{ .dist = <span class="tok-number">104</span>, .length = <span class="tok-number">3</span> }, .{ .dist = <span class="tok-number">475</span>, .length = <span class="tok-number">10</span> }, .{ .dist = <span class="tok-number">549</span>, .length = <span class="tok-number">3</span> },</span> <span class="line" id="L333"> .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">4</span> }, .{ .dist = <span class="tok-number">597</span>, .length = <span class="tok-number">8</span> }, .{ .dist = <span class="tok-number">314</span>, .length = <span class="tok-number">3</span> },</span> <span class="line" id="L334"> .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">1</span> }, .{ .dist = <span class="tok-number">473</span>, .length = <span class="tok-number">6</span> }, .{ .dist = <span class="tok-number">317</span>, .length = <span class="tok-number">5</span> },</span> <span class="line" id="L335"> .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">1</span> }, .{ .dist = <span class="tok-number">400</span>, .length = <span class="tok-number">3</span> }, .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">3</span> },</span> <span class="line" id="L336"> .{ .dist = <span class="tok-number">109</span>, .length = <span class="tok-number">3</span> }, .{ .dist = <span class="tok-number">151</span>, .length = <span class="tok-number">3</span> }, .{ .dist = <span class="tok-number">48</span>, .length = <span class="tok-number">4</span> },</span> <span class="line" id="L337"> .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">4</span> }, .{ .dist = <span class="tok-number">125</span>, .length = <span class="tok-number">3</span> }, .{ .dist = <span class="tok-number">108</span>, .length = <span class="tok-number">3</span> },</span> <span class="line" id="L338"> .{ .dist = <span class="tok-number">0</span>, .length = <span class="tok-number">2</span> },</span> <span class="line" id="L339"> };</span> <span class="line" id="L340"></span> <span class="line" id="L341"> <span class="tok-kw">var</span> got_list = ArrayList(<span class="tok-type">u8</span>).init(testing.allocator);</span> <span class="line" id="L342"> <span class="tok-kw">defer</span> got_list.deinit();</span> <span class="line" id="L343"> <span class="tok-kw">var</span> got = got_list.writer();</span> <span class="line" id="L344"></span> <span class="line" id="L345"> <span class="tok-kw">var</span> want_list = ArrayList(<span class="tok-type">u8</span>).init(testing.allocator);</span> <span class="line" id="L346"> <span class="tok-kw">defer</span> want_list.deinit();</span> <span class="line" id="L347"> <span class="tok-kw">var</span> want = want_list.writer();</span> <span class="line" id="L348"></span> <span class="line" id="L349"> <span class="tok-kw">var</span> dd = DictDecoder{};</span> <span class="line" id="L350"> <span class="tok-kw">try</span> dd.init(testing.allocator, <span class="tok-number">1</span> << <span class="tok-number">11</span>, <span class="tok-null">null</span>);</span> <span class="line" id="L351"> <span class="tok-kw">defer</span> dd.deinit();</span> <span class="line" id="L352"></span> <span class="line" id="L353"> <span class="tok-kw">const</span> util = <span class="tok-kw">struct</span> {</span> <span class="line" id="L354"> <span class="tok-kw">fn</span> <span class="tok-fn">writeCopy</span>(dst_dd: DictDecoder, dst: <span class="tok-kw">anytype</span>, dist: <span class="tok-type">u32</span>, length: <span class="tok-type">u32</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L355"> <span class="tok-kw">var</span> len = length;</span> <span class="line" id="L356"> <span class="tok-kw">while</span> (len > <span class="tok-number">0</span>) {</span> <span class="line" id="L357"> <span class="tok-kw">var</span> n = dst_dd.tryWriteCopy(dist, len);</span> <span class="line" id="L358"> <span class="tok-kw">if</span> (n == <span class="tok-number">0</span>) {</span> <span class="line" id="L359"> n = dst_dd.writeCopy(dist, len);</span> <span class="line" id="L360"> }</span> <span class="line" id="L361"></span> <span class="line" id="L362"> len -= n;</span> <span class="line" id="L363"> <span class="tok-kw">if</span> (dst_dd.availWrite() == <span class="tok-number">0</span>) {</span> <span class="line" id="L364"> _ = <span class="tok-kw">try</span> dst.write(dst_dd.readFlush());</span> <span class="line" id="L365"> }</span> <span class="line" id="L366"> }</span> <span class="line" id="L367"> }</span> <span class="line" id="L368"> <span class="tok-kw">fn</span> <span class="tok-fn">writeString</span>(dst_dd: DictDecoder, dst: <span class="tok-kw">anytype</span>, str: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L369"> <span class="tok-kw">var</span> string = str;</span> <span class="line" id="L370"> <span class="tok-kw">while</span> (string.len > <span class="tok-number">0</span>) {</span> <span class="line" id="L371"> <span class="tok-kw">var</span> cnt = DictDecoder.copy(dst_dd.writeSlice(), string);</span> <span class="line" id="L372"> dst_dd.writeMark(cnt);</span> <span class="line" id="L373"> string = string[cnt..];</span> <span class="line" id="L374"> <span class="tok-kw">if</span> (dst_dd.availWrite() == <span class="tok-number">0</span>) {</span> <span class="line" id="L375"> _ = <span class="tok-kw">try</span> dst.write(dst_dd.readFlush());</span> <span class="line" id="L376"> }</span> <span class="line" id="L377"> }</span> <span class="line" id="L378"> }</span> <span class="line" id="L379"> };</span> <span class="line" id="L380"></span> <span class="line" id="L381"> <span class="tok-kw">try</span> util.writeString(&dd, got, <span class="tok-str">"."</span>);</span> <span class="line" id="L382"> _ = <span class="tok-kw">try</span> want.write(<span class="tok-str">"."</span>);</span> <span class="line" id="L383"></span> <span class="line" id="L384"> <span class="tok-kw">var</span> str = poem;</span> <span class="line" id="L385"> <span class="tok-kw">for</span> (poem_refs, <span class="tok-number">0</span>..) \|ref, i\| {</span> <span class="line" id="L386"> _ = i;</span> <span class="line" id="L387"> <span class="tok-kw">if</span> (ref.dist == <span class="tok-number">0</span>) {</span> <span class="line" id="L388"> <span class="tok-kw">try</span> util.writeString(&dd, got, str[<span class="tok-number">0</span>..ref.length]);</span> <span class="line" id="L389"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L390"> <span class="tok-kw">try</span> util.writeCopy(&dd, got, ref.dist, ref.length);</span> <span class="line" id="L391"> }</span> <span class="line" id="L392"> str = str[ref.length..];</span> <span class="line" id="L393"> }</span> <span class="line" id="L394"> _ = <span class="tok-kw">try</span> want.write(poem);</span> <span class="line" id="L395"></span> <span class="line" id="L396"> <span class="tok-kw">try</span> util.writeCopy(&dd, got, dd.histSize(), <span class="tok-number">33</span>);</span> <span class="line" id="L397"> _ = <span class="tok-kw">try</span> want.write(want_list.items[<span class="tok-number">0</span>..<span class="tok-number">33</span>]);</span> <span class="line" id="L398"></span> <span class="line" id="L399"> <span class="tok-kw">try</span> util.writeString(&dd, got, abc);</span> <span class="line" id="L400"> <span class="tok-kw">try</span> util.writeCopy(&dd, got, abc.len, <span class="tok-number">59</span> abc.len);</span> <span class="line" id="L401"> _ = <span class="tok-kw">try</span> want.write(abc ** <span class="tok-number">60</span>);</span> <span class="line" id="L402"></span> <span class="line" id="L403"> <span class="tok-kw">try</span> util.writeString(&dd, got, fox);</span> <span class="line" id="L404"> <span class="tok-kw">try</span> util.writeCopy(&dd, got, fox.len, <span class="tok-number">9</span> * fox.len);</span> <span class="line" id="L405"> _ = <span class="tok-kw">try</span> want.write(fox <span class="tok-number">10</span>);</span> <span class="line" id="L406"></span> <span class="line" id="L407"> <span class="tok-kw">try</span> util.writeString(&dd, got, <span class="tok-str">"."</span>);</span> <span class="line" id="L408"> <span class="tok-kw">try</span> util.writeCopy(&dd, got, <span class="tok-number">1</span>, <span class="tok-number">9</span>);</span> <span class="line" id="L409"> _ = <span class="tok-kw">try</span> want.write(<span class="tok-str">"."</span> <span class="tok-number">10</span>);</span> <span class="line" id="L410"></span> <span class="line" id="L411"> <span class="tok-kw">try</span> util.writeString(&dd, got, uppercase);</span> <span class="line" id="L412"> <span class="tok-kw">try</span> util.writeCopy(&dd, got, uppercase.len, <span class="tok-number">7</span> * uppercase.len);</span> <span class="line" id="L413"> <span class="tok-kw">var</span> i: <span class="tok-type">u8</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L414"> <span class="tok-kw">while</span> (i < <span class="tok-number">8</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L415"> _ = <span class="tok-kw">try</span> want.write(uppercase);</span> <span class="line" id="L416"> }</span> <span class="line" id="L417"></span> <span class="line" id="L418"> <span class="tok-kw">try</span> util.writeCopy(&dd, got, dd.histSize(), <span class="tok-number">10</span>);</span> <span class="line" id="L419"> _ = <span class="tok-kw">try</span> want.write(want_list.items[want_list.items.len - dd.histSize() ..][<span class="tok-number">0</span>..<span class="tok-number">10</span>]);</span> <span class="line" id="L420"></span> <span class="line" id="L421"> _ = <span class="tok-kw">try</span> got.write(dd.readFlush());</span> <span class="line" id="L422"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, want_list.items, got_list.items);</span> <span class="line" id="L423">}</span> <span class="line" id="L424"></span> </code></pre></body> </html>
repos/yazap/docs/src/std/compress	repos/yazap/docs/src/std/compress/deflate/bits_utils.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>compress/deflate/bits_utils.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> math = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>).math;</span> <span class="line" id="L2"></span> <span class="line" id="L3"><span class="tok-comment">// Reverse bit-by-bit a N-bit code.</span> </span> <span class="line" id="L4"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">bitReverse</span>(<span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>, value: T, N: <span class="tok-type">usize</span>) T {</span> <span class="line" id="L5"> <span class="tok-kw">const</span> r = <span class="tok-builtin">@bitReverse</span>(value);</span> <span class="line" id="L6"> <span class="tok-kw">return</span> r >> <span class="tok-builtin">@as</span>(math.Log2Int(T), <span class="tok-builtin">@intCast</span>(<span class="tok-builtin">@typeInfo</span>(T).Int.bits - N));</span> <span class="line" id="L7">}</span> <span class="line" id="L8"></span> <span class="line" id="L9"><span class="tok-kw">test</span> <span class="tok-str">"bitReverse"</span> {</span> <span class="line" id="L10"> <span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L11"></span> <span class="line" id="L12"> <span class="tok-kw">const</span> ReverseBitsTest = <span class="tok-kw">struct</span> {</span> <span class="line" id="L13"> in: <span class="tok-type">u16</span>,</span> <span class="line" id="L14"> bit_count: <span class="tok-type">u5</span>,</span> <span class="line" id="L15"> out: <span class="tok-type">u16</span>,</span> <span class="line" id="L16"> };</span> <span class="line" id="L17"></span> <span class="line" id="L18"> <span class="tok-kw">var</span> reverse_bits_tests = [_]ReverseBitsTest{</span> <span class="line" id="L19"> .{ .in = <span class="tok-number">1</span>, .bit_count = <span class="tok-number">1</span>, .out = <span class="tok-number">1</span> },</span> <span class="line" id="L20"> .{ .in = <span class="tok-number">1</span>, .bit_count = <span class="tok-number">2</span>, .out = <span class="tok-number">2</span> },</span> <span class="line" id="L21"> .{ .in = <span class="tok-number">1</span>, .bit_count = <span class="tok-number">3</span>, .out = <span class="tok-number">4</span> },</span> <span class="line" id="L22"> .{ .in = <span class="tok-number">1</span>, .bit_count = <span class="tok-number">4</span>, .out = <span class="tok-number">8</span> },</span> <span class="line" id="L23"> .{ .in = <span class="tok-number">1</span>, .bit_count = <span class="tok-number">5</span>, .out = <span class="tok-number">16</span> },</span> <span class="line" id="L24"> .{ .in = <span class="tok-number">17</span>, .bit_count = <span class="tok-number">5</span>, .out = <span class="tok-number">17</span> },</span> <span class="line" id="L25"> .{ .in = <span class="tok-number">257</span>, .bit_count = <span class="tok-number">9</span>, .out = <span class="tok-number">257</span> },</span> <span class="line" id="L26"> .{ .in = <span class="tok-number">29</span>, .bit_count = <span class="tok-number">5</span>, .out = <span class="tok-number">23</span> },</span> <span class="line" id="L27"> };</span> <span class="line" id="L28"></span> <span class="line" id="L29"> <span class="tok-kw">for</span> (reverse_bits_tests) \|h\| {</span> <span class="line" id="L30"> <span class="tok-kw">var</span> v = bitReverse(<span class="tok-type">u16</span>, h.in, h.bit_count);</span> <span class="line" id="L31"> <span class="tok-kw">try</span> std.testing.expectEqual(h.out, v);</span> <span class="line" id="L32"> }</span> <span class="line" id="L33">}</span> <span class="line" id="L34"></span> </code></pre></body> </html>
repos/yazap/docs/src/std/compress	repos/yazap/docs/src/std/compress/deflate/huffman_bit_writer.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>compress/deflate/huffman_bit_writer.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> builtin = <span class="tok-builtin">@import</span>(<span class="tok-str">"builtin"</span>);</span> <span class="line" id="L3"><span class="tok-kw">const</span> io = std.io;</span> <span class="line" id="L4"></span> <span class="line" id="L5"><span class="tok-kw">const</span> Allocator = std.mem.Allocator;</span> <span class="line" id="L6"></span> <span class="line" id="L7"><span class="tok-kw">const</span> deflate_const = <span class="tok-builtin">@import</span>(<span class="tok-str">"deflate_const.zig"</span>);</span> <span class="line" id="L8"><span class="tok-kw">const</span> hm_code = <span class="tok-builtin">@import</span>(<span class="tok-str">"huffman_code.zig"</span>);</span> <span class="line" id="L9"><span class="tok-kw">const</span> token = <span class="tok-builtin">@import</span>(<span class="tok-str">"token.zig"</span>);</span> <span class="line" id="L10"></span> <span class="line" id="L11"><span class="tok-comment">// The first length code.</span> </span> <span class="line" id="L12"><span class="tok-kw">const</span> length_codes_start = <span class="tok-number">257</span>;</span> <span class="line" id="L13"></span> <span class="line" id="L14"><span class="tok-comment">// The number of codegen codes.</span> </span> <span class="line" id="L15"><span class="tok-kw">const</span> codegen_code_count = <span class="tok-number">19</span>;</span> <span class="line" id="L16"><span class="tok-kw">const</span> bad_code = <span class="tok-number">255</span>;</span> <span class="line" id="L17"></span> <span class="line" id="L18"><span class="tok-comment">// buffer_flush_size indicates the buffer size</span> </span> <span class="line" id="L19"><span class="tok-comment">// after which bytes are flushed to the writer.</span> </span> <span class="line" id="L20"><span class="tok-comment">// Should preferably be a multiple of 6, since</span> </span> <span class="line" id="L21"><span class="tok-comment">// we accumulate 6 bytes between writes to the buffer.</span> </span> <span class="line" id="L22"><span class="tok-kw">const</span> buffer_flush_size = <span class="tok-number">240</span>;</span> <span class="line" id="L23"></span> <span class="line" id="L24"><span class="tok-comment">// buffer_size is the actual output byte buffer size.</span> </span> <span class="line" id="L25"><span class="tok-comment">// It must have additional headroom for a flush</span> </span> <span class="line" id="L26"><span class="tok-comment">// which can contain up to 8 bytes.</span> </span> <span class="line" id="L27"><span class="tok-kw">const</span> buffer_size = buffer_flush_size + <span class="tok-number">8</span>;</span> <span class="line" id="L28"></span> <span class="line" id="L29"><span class="tok-comment">// The number of extra bits needed by length code X - LENGTH_CODES_START.</span> </span> <span class="line" id="L30"><span class="tok-kw">var</span> length_extra_bits = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L31"> <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-comment">// 257</span> </span> <span class="line" id="L32"> <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-comment">// 260</span> </span> <span class="line" id="L33"> <span class="tok-number">2</span>, <span class="tok-number">2</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">3</span>, <span class="tok-number">3</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">4</span>, <span class="tok-number">4</span>, <span class="tok-comment">// 270</span> </span> <span class="line" id="L34"> <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">5</span>, <span class="tok-number">5</span>, <span class="tok-number">5</span>, <span class="tok-number">0</span>, <span class="tok-comment">// 280</span> </span> <span class="line" id="L35">};</span> <span class="line" id="L36"></span> <span class="line" id="L37"><span class="tok-comment">// The length indicated by length code X - LENGTH_CODES_START.</span> </span> <span class="line" id="L38"><span class="tok-kw">var</span> length_base = [_]<span class="tok-type">u32</span>{</span> <span class="line" id="L39"> <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">8</span>, <span class="tok-number">10</span>,</span> <span class="line" id="L40"> <span class="tok-number">12</span>, <span class="tok-number">14</span>, <span class="tok-number">16</span>, <span class="tok-number">20</span>, <span class="tok-number">24</span>, <span class="tok-number">28</span>, <span class="tok-number">32</span>, <span class="tok-number">40</span>, <span class="tok-number">48</span>, <span class="tok-number">56</span>,</span> <span class="line" id="L41"> <span class="tok-number">64</span>, <span class="tok-number">80</span>, <span class="tok-number">96</span>, <span class="tok-number">112</span>, <span class="tok-number">128</span>, <span class="tok-number">160</span>, <span class="tok-number">192</span>, <span class="tok-number">224</span>, <span class="tok-number">255</span>,</span> <span class="line" id="L42">};</span> <span class="line" id="L43"></span> <span class="line" id="L44"><span class="tok-comment">// offset code word extra bits.</span> </span> <span class="line" id="L45"><span class="tok-kw">var</span> offset_extra_bits = [_]<span class="tok-type">i8</span>{</span> <span class="line" id="L46"> <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">3</span>,</span> <span class="line" id="L47"> <span class="tok-number">4</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">7</span>, <span class="tok-number">8</span>, <span class="tok-number">8</span>,</span> <span class="line" id="L48"> <span class="tok-number">9</span>, <span class="tok-number">9</span>, <span class="tok-number">10</span>, <span class="tok-number">10</span>, <span class="tok-number">11</span>, <span class="tok-number">11</span>, <span class="tok-number">12</span>, <span class="tok-number">12</span>, <span class="tok-number">13</span>, <span class="tok-number">13</span>,</span> <span class="line" id="L49">};</span> <span class="line" id="L50"></span> <span class="line" id="L51"><span class="tok-kw">var</span> offset_base = [_]<span class="tok-type">u32</span>{</span> <span class="line" id="L52"> <span class="tok-number">0x000000</span>, <span class="tok-number">0x000001</span>, <span class="tok-number">0x000002</span>, <span class="tok-number">0x000003</span>, <span class="tok-number">0x000004</span>,</span> <span class="line" id="L53"> <span class="tok-number">0x000006</span>, <span class="tok-number">0x000008</span>, <span class="tok-number">0x00000c</span>, <span class="tok-number">0x000010</span>, <span class="tok-number">0x000018</span>,</span> <span class="line" id="L54"> <span class="tok-number">0x000020</span>, <span class="tok-number">0x000030</span>, <span class="tok-number">0x000040</span>, <span class="tok-number">0x000060</span>, <span class="tok-number">0x000080</span>,</span> <span class="line" id="L55"> <span class="tok-number">0x0000c0</span>, <span class="tok-number">0x000100</span>, <span class="tok-number">0x000180</span>, <span class="tok-number">0x000200</span>, <span class="tok-number">0x000300</span>,</span> <span class="line" id="L56"> <span class="tok-number">0x000400</span>, <span class="tok-number">0x000600</span>, <span class="tok-number">0x000800</span>, <span class="tok-number">0x000c00</span>, <span class="tok-number">0x001000</span>,</span> <span class="line" id="L57"> <span class="tok-number">0x001800</span>, <span class="tok-number">0x002000</span>, <span class="tok-number">0x003000</span>, <span class="tok-number">0x004000</span>, <span class="tok-number">0x006000</span>,</span> <span class="line" id="L58">};</span> <span class="line" id="L59"></span> <span class="line" id="L60"><span class="tok-comment">// The odd order in which the codegen code sizes are written.</span> </span> <span class="line" id="L61"><span class="tok-kw">var</span> codegen_order = [_]<span class="tok-type">u32</span>{ <span class="tok-number">16</span>, <span class="tok-number">17</span>, <span class="tok-number">18</span>, <span class="tok-number">0</span>, <span class="tok-number">8</span>, <span class="tok-number">7</span>, <span class="tok-number">9</span>, <span class="tok-number">6</span>, <span class="tok-number">10</span>, <span class="tok-number">5</span>, <span class="tok-number">11</span>, <span class="tok-number">4</span>, <span class="tok-number">12</span>, <span class="tok-number">3</span>, <span class="tok-number">13</span>, <span class="tok-number">2</span>, <span class="tok-number">14</span>, <span class="tok-number">1</span>, <span class="tok-number">15</span> };</span> <span class="line" id="L62"></span> <span class="line" id="L63"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">HuffmanBitWriter</span>(<span class="tok-kw">comptime</span> WriterType: <span class="tok-type">type</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L64"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L65"> <span class="tok-kw">const</span> Self = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L66"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Error = WriterType.Error;</span> <span class="line" id="L67"></span> <span class="line" id="L68"> <span class="tok-comment">// writer is the underlying writer.</span> </span> <span class="line" id="L69"> <span class="tok-comment">// Do not use it directly; use the write method, which ensures</span> </span> <span class="line" id="L70"> <span class="tok-comment">// that Write errors are sticky.</span> </span> <span class="line" id="L71"> inner_writer: WriterType,</span> <span class="line" id="L72"> bytes_written: <span class="tok-type">usize</span>,</span> <span class="line" id="L73"></span> <span class="line" id="L74"> <span class="tok-comment">// Data waiting to be written is bytes[0 .. nbytes]</span> </span> <span class="line" id="L75"> <span class="tok-comment">// and then the low nbits of bits. Data is always written</span> </span> <span class="line" id="L76"> <span class="tok-comment">// sequentially into the bytes array.</span> </span> <span class="line" id="L77"> bits: <span class="tok-type">u64</span>,</span> <span class="line" id="L78"> nbits: <span class="tok-type">u32</span>, <span class="tok-comment">// number of bits</span> </span> <span class="line" id="L79"> bytes: [buffer_size]<span class="tok-type">u8</span>,</span> <span class="line" id="L80"> codegen_freq: [codegen_code_count]<span class="tok-type">u16</span>,</span> <span class="line" id="L81"> nbytes: <span class="tok-type">u32</span>, <span class="tok-comment">// number of bytes</span> </span> <span class="line" id="L82"> literal_freq: []<span class="tok-type">u16</span>,</span> <span class="line" id="L83"> offset_freq: []<span class="tok-type">u16</span>,</span> <span class="line" id="L84"> codegen: []<span class="tok-type">u8</span>,</span> <span class="line" id="L85"> literal_encoding: hm_code.HuffmanEncoder,</span> <span class="line" id="L86"> offset_encoding: hm_code.HuffmanEncoder,</span> <span class="line" id="L87"> codegen_encoding: hm_code.HuffmanEncoder,</span> <span class="line" id="L88"> err: <span class="tok-type">bool</span> = <span class="tok-null">false</span>,</span> <span class="line" id="L89"> fixed_literal_encoding: hm_code.HuffmanEncoder,</span> <span class="line" id="L90"> fixed_offset_encoding: hm_code.HuffmanEncoder,</span> <span class="line" id="L91"> allocator: Allocator,</span> <span class="line" id="L92"> huff_offset: hm_code.HuffmanEncoder,</span> <span class="line" id="L93"></span> <span class="line" id="L94"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">reset</span>(self: Self, new_writer: WriterType) <span class="tok-type">void</span> {</span> <span class="line" id="L95"> self.inner_writer = new_writer;</span> <span class="line" id="L96"> self.bytes_written = <span class="tok-number">0</span>;</span> <span class="line" id="L97"> self.bits = <span class="tok-number">0</span>;</span> <span class="line" id="L98"> self.nbits = <span class="tok-number">0</span>;</span> <span class="line" id="L99"> self.nbytes = <span class="tok-number">0</span>;</span> <span class="line" id="L100"> self.err = <span class="tok-null">false</span>;</span> <span class="line" id="L101"> }</span> <span class="line" id="L102"></span> <span class="line" id="L103"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">flush</span>(self: Self) Error!<span class="tok-type">void</span> {</span> <span class="line" id="L104"> <span class="tok-kw">if</span> (self.err) {</span> <span class="line" id="L105"> self.nbits = <span class="tok-number">0</span>;</span> <span class="line" id="L106"> <span class="tok-kw">return</span>;</span> <span class="line" id="L107"> }</span> <span class="line" id="L108"> <span class="tok-kw">var</span> n = self.nbytes;</span> <span class="line" id="L109"> <span class="tok-kw">while</span> (self.nbits != <span class="tok-number">0</span>) {</span> <span class="line" id="L110"> self.bytes[n] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>(self.bits));</span> <span class="line" id="L111"> self.bits >>= <span class="tok-number">8</span>;</span> <span class="line" id="L112"> <span class="tok-kw">if</span> (self.nbits > <span class="tok-number">8</span>) { <span class="tok-comment">// Avoid underflow</span> </span> <span class="line" id="L113"> self.nbits -= <span class="tok-number">8</span>;</span> <span class="line" id="L114"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L115"> self.nbits = <span class="tok-number">0</span>;</span> <span class="line" id="L116"> }</span> <span class="line" id="L117"> n += <span class="tok-number">1</span>;</span> <span class="line" id="L118"> }</span> <span class="line" id="L119"> self.bits = <span class="tok-number">0</span>;</span> <span class="line" id="L120"> <span class="tok-kw">try</span> self.write(self.bytes[<span class="tok-number">0</span>..n]);</span> <span class="line" id="L121"> self.nbytes = <span class="tok-number">0</span>;</span> <span class="line" id="L122"> }</span> <span class="line" id="L123"></span> <span class="line" id="L124"> <span class="tok-kw">fn</span> <span class="tok-fn">write</span>(self: Self, b: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) Error!<span class="tok-type">void</span> {</span> <span class="line" id="L125"> <span class="tok-kw">if</span> (self.err) {</span> <span class="line" id="L126"> <span class="tok-kw">return</span>;</span> <span class="line" id="L127"> }</span> <span class="line" id="L128"> self.bytes_written += <span class="tok-kw">try</span> self.inner_writer.write(b);</span> <span class="line" id="L129"> }</span> <span class="line" id="L130"></span> <span class="line" id="L131"> <span class="tok-kw">fn</span> <span class="tok-fn">writeBits</span>(self: Self, b: <span class="tok-type">u32</span>, nb: <span class="tok-type">u32</span>) Error!<span class="tok-type">void</span> {</span> <span class="line" id="L132"> <span class="tok-kw">if</span> (self.err) {</span> <span class="line" id="L133"> <span class="tok-kw">return</span>;</span> <span class="line" id="L134"> }</span> <span class="line" id="L135"> self.bits \|= <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@intCast</span>(b)) << <span class="tok-builtin">@as</span>(<span class="tok-type">u6</span>, <span class="tok-builtin">@intCast</span>(self.nbits));</span> <span class="line" id="L136"> self.nbits += nb;</span> <span class="line" id="L137"> <span class="tok-kw">if</span> (self.nbits >= <span class="tok-number">48</span>) {</span> <span class="line" id="L138"> <span class="tok-kw">var</span> bits = self.bits;</span> <span class="line" id="L139"> self.bits >>= <span class="tok-number">48</span>;</span> <span class="line" id="L140"> self.nbits -= <span class="tok-number">48</span>;</span> <span class="line" id="L141"> <span class="tok-kw">var</span> n = self.nbytes;</span> <span class="line" id="L142"> <span class="tok-kw">var</span> bytes = self.bytes[n..][<span class="tok-number">0</span>..<span class="tok-number">6</span>];</span> <span class="line" id="L143"> bytes[<span class="tok-number">0</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>(bits));</span> <span class="line" id="L144"> bytes[<span class="tok-number">1</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>(bits >> <span class="tok-number">8</span>));</span> <span class="line" id="L145"> bytes[<span class="tok-number">2</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>(bits >> <span class="tok-number">16</span>));</span> <span class="line" id="L146"> bytes[<span class="tok-number">3</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>(bits >> <span class="tok-number">24</span>));</span> <span class="line" id="L147"> bytes[<span class="tok-number">4</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>(bits >> <span class="tok-number">32</span>));</span> <span class="line" id="L148"> bytes[<span class="tok-number">5</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>(bits >> <span class="tok-number">40</span>));</span> <span class="line" id="L149"> n += <span class="tok-number">6</span>;</span> <span class="line" id="L150"> <span class="tok-kw">if</span> (n >= buffer_flush_size) {</span> <span class="line" id="L151"> <span class="tok-kw">try</span> self.write(self.bytes[<span class="tok-number">0</span>..n]);</span> <span class="line" id="L152"> n = <span class="tok-number">0</span>;</span> <span class="line" id="L153"> }</span> <span class="line" id="L154"> self.nbytes = n;</span> <span class="line" id="L155"> }</span> <span class="line" id="L156"> }</span> <span class="line" id="L157"></span> <span class="line" id="L158"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">writeBytes</span>(self: Self, bytes: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) Error!<span class="tok-type">void</span> {</span> <span class="line" id="L159"> <span class="tok-kw">if</span> (self.err) {</span> <span class="line" id="L160"> <span class="tok-kw">return</span>;</span> <span class="line" id="L161"> }</span> <span class="line" id="L162"> <span class="tok-kw">var</span> n = self.nbytes;</span> <span class="line" id="L163"> <span class="tok-kw">if</span> (self.nbits & <span class="tok-number">7</span> != <span class="tok-number">0</span>) {</span> <span class="line" id="L164"> self.err = <span class="tok-null">true</span>; <span class="tok-comment">// unfinished bits</span> </span> <span class="line" id="L165"> <span class="tok-kw">return</span>;</span> <span class="line" id="L166"> }</span> <span class="line" id="L167"> <span class="tok-kw">while</span> (self.nbits != <span class="tok-number">0</span>) {</span> <span class="line" id="L168"> self.bytes[n] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>(self.bits));</span> <span class="line" id="L169"> self.bits >>= <span class="tok-number">8</span>;</span> <span class="line" id="L170"> self.nbits -= <span class="tok-number">8</span>;</span> <span class="line" id="L171"> n += <span class="tok-number">1</span>;</span> <span class="line" id="L172"> }</span> <span class="line" id="L173"> <span class="tok-kw">if</span> (n != <span class="tok-number">0</span>) {</span> <span class="line" id="L174"> <span class="tok-kw">try</span> self.write(self.bytes[<span class="tok-number">0</span>..n]);</span> <span class="line" id="L175"> }</span> <span class="line" id="L176"> self.nbytes = <span class="tok-number">0</span>;</span> <span class="line" id="L177"> <span class="tok-kw">try</span> self.write(bytes);</span> <span class="line" id="L178"> }</span> <span class="line" id="L179"></span> <span class="line" id="L180"> <span class="tok-comment">// RFC 1951 3.2.7 specifies a special run-length encoding for specifying</span> </span> <span class="line" id="L181"> <span class="tok-comment">// the literal and offset lengths arrays (which are concatenated into a single</span> </span> <span class="line" id="L182"> <span class="tok-comment">// array). This method generates that run-length encoding.</span> </span> <span class="line" id="L183"> <span class="tok-comment">//</span> </span> <span class="line" id="L184"> <span class="tok-comment">// The result is written into the codegen array, and the frequencies</span> </span> <span class="line" id="L185"> <span class="tok-comment">// of each code is written into the codegen_freq array.</span> </span> <span class="line" id="L186"> <span class="tok-comment">// Codes 0-15 are single byte codes. Codes 16-18 are followed by additional</span> </span> <span class="line" id="L187"> <span class="tok-comment">// information. Code bad_code is an end marker</span> </span> <span class="line" id="L188"> <span class="tok-comment">//</span> </span> <span class="line" id="L189"> <span class="tok-comment">// num_literals: The number of literals in literal_encoding</span> </span> <span class="line" id="L190"> <span class="tok-comment">// num_offsets: The number of offsets in offset_encoding</span> </span> <span class="line" id="L191"> <span class="tok-comment">// lit_enc: The literal encoder to use</span> </span> <span class="line" id="L192"> <span class="tok-comment">// off_enc: The offset encoder to use</span> </span> <span class="line" id="L193"> <span class="tok-kw">fn</span> <span class="tok-fn">generateCodegen</span>(</span> <span class="line" id="L194"> self: Self,</span> <span class="line" id="L195"> num_literals: <span class="tok-type">u32</span>,</span> <span class="line" id="L196"> num_offsets: <span class="tok-type">u32</span>,</span> <span class="line" id="L197"> lit_enc: hm_code.HuffmanEncoder,</span> <span class="line" id="L198"> off_enc: hm_code.HuffmanEncoder,</span> <span class="line" id="L199"> ) <span class="tok-type">void</span> {</span> <span class="line" id="L200"> <span class="tok-kw">for</span> (self.codegen_freq, <span class="tok-number">0</span>..) \|_, i\| {</span> <span class="line" id="L201"> self.codegen_freq[i] = <span class="tok-number">0</span>;</span> <span class="line" id="L202"> }</span> <span class="line" id="L203"></span> <span class="line" id="L204"> <span class="tok-comment">// Note that we are using codegen both as a temporary variable for holding</span> </span> <span class="line" id="L205"> <span class="tok-comment">// a copy of the frequencies, and as the place where we put the result.</span> </span> <span class="line" id="L206"> <span class="tok-comment">// This is fine because the output is always shorter than the input used</span> </span> <span class="line" id="L207"> <span class="tok-comment">// so far.</span> </span> <span class="line" id="L208"> <span class="tok-kw">var</span> codegen = self.codegen; <span class="tok-comment">// cache</span> </span> <span class="line" id="L209"> <span class="tok-comment">// Copy the concatenated code sizes to codegen. Put a marker at the end.</span> </span> <span class="line" id="L210"> <span class="tok-kw">var</span> cgnl = codegen[<span class="tok-number">0</span>..num_literals];</span> <span class="line" id="L211"> <span class="tok-kw">for</span> (cgnl, <span class="tok-number">0</span>..) \|_, i\| {</span> <span class="line" id="L212"> cgnl[i] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>(lit_enc.codes[i].len));</span> <span class="line" id="L213"> }</span> <span class="line" id="L214"></span> <span class="line" id="L215"> cgnl = codegen[num_literals .. num_literals + num_offsets];</span> <span class="line" id="L216"> <span class="tok-kw">for</span> (cgnl, <span class="tok-number">0</span>..) \|_, i\| {</span> <span class="line" id="L217"> cgnl[i] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>(off_enc.codes[i].len));</span> <span class="line" id="L218"> }</span> <span class="line" id="L219"> codegen[num_literals + num_offsets] = bad_code;</span> <span class="line" id="L220"></span> <span class="line" id="L221"> <span class="tok-kw">var</span> size = codegen[<span class="tok-number">0</span>];</span> <span class="line" id="L222"> <span class="tok-kw">var</span> count: <span class="tok-type">i32</span> = <span class="tok-number">1</span>;</span> <span class="line" id="L223"> <span class="tok-kw">var</span> out_index: <span class="tok-type">u32</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L224"> <span class="tok-kw">var</span> in_index: <span class="tok-type">u32</span> = <span class="tok-number">1</span>;</span> <span class="line" id="L225"> <span class="tok-kw">while</span> (size != bad_code) : (in_index += <span class="tok-number">1</span>) {</span> <span class="line" id="L226"> <span class="tok-comment">// INVARIANT: We have seen "count" copies of size that have not yet</span> </span> <span class="line" id="L227"> <span class="tok-comment">// had output generated for them.</span> </span> <span class="line" id="L228"> <span class="tok-kw">var</span> next_size = codegen[in_index];</span> <span class="line" id="L229"> <span class="tok-kw">if</span> (next_size == size) {</span> <span class="line" id="L230"> count += <span class="tok-number">1</span>;</span> <span class="line" id="L231"> <span class="tok-kw">continue</span>;</span> <span class="line" id="L232"> }</span> <span class="line" id="L233"> <span class="tok-comment">// We need to generate codegen indicating "count" of size.</span> </span> <span class="line" id="L234"> <span class="tok-kw">if</span> (size != <span class="tok-number">0</span>) {</span> <span class="line" id="L235"> codegen[out_index] = size;</span> <span class="line" id="L236"> out_index += <span class="tok-number">1</span>;</span> <span class="line" id="L237"> self.codegen_freq[size] += <span class="tok-number">1</span>;</span> <span class="line" id="L238"> count -= <span class="tok-number">1</span>;</span> <span class="line" id="L239"> <span class="tok-kw">while</span> (count >= <span class="tok-number">3</span>) {</span> <span class="line" id="L240"> <span class="tok-kw">var</span> n: <span class="tok-type">i32</span> = <span class="tok-number">6</span>;</span> <span class="line" id="L241"> <span class="tok-kw">if</span> (n > count) {</span> <span class="line" id="L242"> n = count;</span> <span class="line" id="L243"> }</span> <span class="line" id="L244"> codegen[out_index] = <span class="tok-number">16</span>;</span> <span class="line" id="L245"> out_index += <span class="tok-number">1</span>;</span> <span class="line" id="L246"> codegen[out_index] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>(n - <span class="tok-number">3</span>));</span> <span class="line" id="L247"> out_index += <span class="tok-number">1</span>;</span> <span class="line" id="L248"> self.codegen_freq[<span class="tok-number">16</span>] += <span class="tok-number">1</span>;</span> <span class="line" id="L249"> count -= n;</span> <span class="line" id="L250"> }</span> <span class="line" id="L251"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L252"> <span class="tok-kw">while</span> (count >= <span class="tok-number">11</span>) {</span> <span class="line" id="L253"> <span class="tok-kw">var</span> n: <span class="tok-type">i32</span> = <span class="tok-number">138</span>;</span> <span class="line" id="L254"> <span class="tok-kw">if</span> (n > count) {</span> <span class="line" id="L255"> n = count;</span> <span class="line" id="L256"> }</span> <span class="line" id="L257"> codegen[out_index] = <span class="tok-number">18</span>;</span> <span class="line" id="L258"> out_index += <span class="tok-number">1</span>;</span> <span class="line" id="L259"> codegen[out_index] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>(n - <span class="tok-number">11</span>));</span> <span class="line" id="L260"> out_index += <span class="tok-number">1</span>;</span> <span class="line" id="L261"> self.codegen_freq[<span class="tok-number">18</span>] += <span class="tok-number">1</span>;</span> <span class="line" id="L262"> count -= n;</span> <span class="line" id="L263"> }</span> <span class="line" id="L264"> <span class="tok-kw">if</span> (count >= <span class="tok-number">3</span>) {</span> <span class="line" id="L265"> <span class="tok-comment">// 3 <= count <= 10</span> </span> <span class="line" id="L266"> codegen[out_index] = <span class="tok-number">17</span>;</span> <span class="line" id="L267"> out_index += <span class="tok-number">1</span>;</span> <span class="line" id="L268"> codegen[out_index] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>(count - <span class="tok-number">3</span>));</span> <span class="line" id="L269"> out_index += <span class="tok-number">1</span>;</span> <span class="line" id="L270"> self.codegen_freq[<span class="tok-number">17</span>] += <span class="tok-number">1</span>;</span> <span class="line" id="L271"> count = <span class="tok-number">0</span>;</span> <span class="line" id="L272"> }</span> <span class="line" id="L273"> }</span> <span class="line" id="L274"> count -= <span class="tok-number">1</span>;</span> <span class="line" id="L275"> <span class="tok-kw">while</span> (count >= <span class="tok-number">0</span>) : (count -= <span class="tok-number">1</span>) {</span> <span class="line" id="L276"> codegen[out_index] = size;</span> <span class="line" id="L277"> out_index += <span class="tok-number">1</span>;</span> <span class="line" id="L278"> self.codegen_freq[size] += <span class="tok-number">1</span>;</span> <span class="line" id="L279"> }</span> <span class="line" id="L280"> <span class="tok-comment">// Set up invariant for next time through the loop.</span> </span> <span class="line" id="L281"> size = next_size;</span> <span class="line" id="L282"> count = <span class="tok-number">1</span>;</span> <span class="line" id="L283"> }</span> <span class="line" id="L284"> <span class="tok-comment">// Marker indicating the end of the codegen.</span> </span> <span class="line" id="L285"> codegen[out_index] = bad_code;</span> <span class="line" id="L286"> }</span> <span class="line" id="L287"></span> <span class="line" id="L288"> <span class="tok-comment">// dynamicSize returns the size of dynamically encoded data in bits.</span> </span> <span class="line" id="L289"> <span class="tok-kw">fn</span> <span class="tok-fn">dynamicSize</span>(</span> <span class="line" id="L290"> self: Self,</span> <span class="line" id="L291"> lit_enc: hm_code.HuffmanEncoder, <span class="tok-comment">// literal encoder</span> </span> <span class="line" id="L292"> off_enc: hm_code.HuffmanEncoder, <span class="tok-comment">// offset encoder</span> </span> <span class="line" id="L293"> extra_bits: <span class="tok-type">u32</span>,</span> <span class="line" id="L294"> ) DynamicSize {</span> <span class="line" id="L295"> <span class="tok-kw">var</span> num_codegens = self.codegen_freq.len;</span> <span class="line" id="L296"> <span class="tok-kw">while</span> (num_codegens > <span class="tok-number">4</span> <span class="tok-kw">and</span> self.codegen_freq[codegen_order[num_codegens - <span class="tok-number">1</span>]] == <span class="tok-number">0</span>) {</span> <span class="line" id="L297"> num_codegens -= <span class="tok-number">1</span>;</span> <span class="line" id="L298"> }</span> <span class="line" id="L299"> <span class="tok-kw">var</span> header = <span class="tok-number">3</span> + <span class="tok-number">5</span> + <span class="tok-number">5</span> + <span class="tok-number">4</span> + (<span class="tok-number">3</span> num_codegens) +</span> <span class="line" id="L300"> self.codegen_encoding.bitLength(self.codegen_freq[<span class="tok-number">0</span>..]) +</span> <span class="line" id="L301"> self.codegen_freq[<span class="tok-number">16</span>] * <span class="tok-number">2</span> +</span> <span class="line" id="L302"> self.codegen_freq[<span class="tok-number">17</span>] * <span class="tok-number">3</span> +</span> <span class="line" id="L303"> self.codegen_freq[<span class="tok-number">18</span>] * <span class="tok-number">7</span>;</span> <span class="line" id="L304"> <span class="tok-kw">var</span> size = header +</span> <span class="line" id="L305"> lit_enc.bitLength(self.literal_freq) +</span> <span class="line" id="L306"> off_enc.bitLength(self.offset_freq) +</span> <span class="line" id="L307"> extra_bits;</span> <span class="line" id="L308"></span> <span class="line" id="L309"> <span class="tok-kw">return</span> DynamicSize{</span> <span class="line" id="L310"> .size = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(size)),</span> <span class="line" id="L311"> .num_codegens = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(num_codegens)),</span> <span class="line" id="L312"> };</span> <span class="line" id="L313"> }</span> <span class="line" id="L314"></span> <span class="line" id="L315"> <span class="tok-comment">// fixedSize returns the size of dynamically encoded data in bits.</span> </span> <span class="line" id="L316"> <span class="tok-kw">fn</span> <span class="tok-fn">fixedSize</span>(self: Self, extra_bits: <span class="tok-type">u32</span>) <span class="tok-type">u32</span> {</span> <span class="line" id="L317"> <span class="tok-kw">return</span> <span class="tok-number">3</span> +</span> <span class="line" id="L318"> self.fixed_literal_encoding.bitLength(self.literal_freq) +</span> <span class="line" id="L319"> self.fixed_offset_encoding.bitLength(self.offset_freq) +</span> <span class="line" id="L320"> extra_bits;</span> <span class="line" id="L321"> }</span> <span class="line" id="L322"></span> <span class="line" id="L323"> <span class="tok-comment">// storedSizeFits calculates the stored size, including header.</span> </span> <span class="line" id="L324"> <span class="tok-comment">// The function returns the size in bits and whether the block</span> </span> <span class="line" id="L325"> <span class="tok-comment">// fits inside a single block.</span> </span> <span class="line" id="L326"> <span class="tok-kw">fn</span> <span class="tok-fn">storedSizeFits</span>(in: ?[]<span class="tok-kw">const</span> <span class="tok-type">u8</span>) StoredSize {</span> <span class="line" id="L327"> <span class="tok-kw">if</span> (in == <span class="tok-null">null</span>) {</span> <span class="line" id="L328"> <span class="tok-kw">return</span> .{ .size = <span class="tok-number">0</span>, .storable = <span class="tok-null">false</span> };</span> <span class="line" id="L329"> }</span> <span class="line" id="L330"> <span class="tok-kw">if</span> (in.?.len <= deflate_const.max_store_block_size) {</span> <span class="line" id="L331"> <span class="tok-kw">return</span> .{ .size = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>((in.?.len + <span class="tok-number">5</span>) <span class="tok-number">8</span>)), .storable = <span class="tok-null">true</span> };</span> <span class="line" id="L332"> }</span> <span class="line" id="L333"> <span class="tok-kw">return</span> .{ .size = <span class="tok-number">0</span>, .storable = <span class="tok-null">false</span> };</span> <span class="line" id="L334"> }</span> <span class="line" id="L335"></span> <span class="line" id="L336"> <span class="tok-kw">fn</span> <span class="tok-fn">writeCode</span>(self: Self, c: hm_code.HuffCode) Error!<span class="tok-type">void</span> {</span> <span class="line" id="L337"> <span class="tok-kw">if</span> (self.err) {</span> <span class="line" id="L338"> <span class="tok-kw">return</span>;</span> <span class="line" id="L339"> }</span> <span class="line" id="L340"> self.bits \|= <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@intCast</span>(c.code)) << <span class="tok-builtin">@as</span>(<span class="tok-type">u6</span>, <span class="tok-builtin">@intCast</span>(self.nbits));</span> <span class="line" id="L341"> self.nbits += <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(c.len));</span> <span class="line" id="L342"> <span class="tok-kw">if</span> (self.nbits >= <span class="tok-number">48</span>) {</span> <span class="line" id="L343"> <span class="tok-kw">var</span> bits = self.bits;</span> <span class="line" id="L344"> self.bits >>= <span class="tok-number">48</span>;</span> <span class="line" id="L345"> self.nbits -= <span class="tok-number">48</span>;</span> <span class="line" id="L346"> <span class="tok-kw">var</span> n = self.nbytes;</span> <span class="line" id="L347"> <span class="tok-kw">var</span> bytes = self.bytes[n..][<span class="tok-number">0</span>..<span class="tok-number">6</span>];</span> <span class="line" id="L348"> bytes[<span class="tok-number">0</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>(bits));</span> <span class="line" id="L349"> bytes[<span class="tok-number">1</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>(bits >> <span class="tok-number">8</span>));</span> <span class="line" id="L350"> bytes[<span class="tok-number">2</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>(bits >> <span class="tok-number">16</span>));</span> <span class="line" id="L351"> bytes[<span class="tok-number">3</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>(bits >> <span class="tok-number">24</span>));</span> <span class="line" id="L352"> bytes[<span class="tok-number">4</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>(bits >> <span class="tok-number">32</span>));</span> <span class="line" id="L353"> bytes[<span class="tok-number">5</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>(bits >> <span class="tok-number">40</span>));</span> <span class="line" id="L354"> n += <span class="tok-number">6</span>;</span> <span class="line" id="L355"> <span class="tok-kw">if</span> (n >= buffer_flush_size) {</span> <span class="line" id="L356"> <span class="tok-kw">try</span> self.write(self.bytes[<span class="tok-number">0</span>..n]);</span> <span class="line" id="L357"> n = <span class="tok-number">0</span>;</span> <span class="line" id="L358"> }</span> <span class="line" id="L359"> self.nbytes = n;</span> <span class="line" id="L360"> }</span> <span class="line" id="L361"> }</span> <span class="line" id="L362"></span> <span class="line" id="L363"> <span class="tok-comment">// Write the header of a dynamic Huffman block to the output stream.</span> </span> <span class="line" id="L364"> <span class="tok-comment">//</span> </span> <span class="line" id="L365"> <span class="tok-comment">// num_literals: The number of literals specified in codegen</span> </span> <span class="line" id="L366"> <span class="tok-comment">// num_offsets: The number of offsets specified in codegen</span> </span> <span class="line" id="L367"> <span class="tok-comment">// num_codegens: The number of codegens used in codegen</span> </span> <span class="line" id="L368"> <span class="tok-comment">// is_eof: Is it the end-of-file? (end of stream)</span> </span> <span class="line" id="L369"> <span class="tok-kw">fn</span> <span class="tok-fn">writeDynamicHeader</span>(</span> <span class="line" id="L370"> self: Self,</span> <span class="line" id="L371"> num_literals: <span class="tok-type">u32</span>,</span> <span class="line" id="L372"> num_offsets: <span class="tok-type">u32</span>,</span> <span class="line" id="L373"> num_codegens: <span class="tok-type">u32</span>,</span> <span class="line" id="L374"> is_eof: <span class="tok-type">bool</span>,</span> <span class="line" id="L375"> ) Error!<span class="tok-type">void</span> {</span> <span class="line" id="L376"> <span class="tok-kw">if</span> (self.err) {</span> <span class="line" id="L377"> <span class="tok-kw">return</span>;</span> <span class="line" id="L378"> }</span> <span class="line" id="L379"> <span class="tok-kw">var</span> first_bits: <span class="tok-type">u32</span> = <span class="tok-number">4</span>;</span> <span class="line" id="L380"> <span class="tok-kw">if</span> (is_eof) {</span> <span class="line" id="L381"> first_bits = <span class="tok-number">5</span>;</span> <span class="line" id="L382"> }</span> <span class="line" id="L383"> <span class="tok-kw">try</span> self.writeBits(first_bits, <span class="tok-number">3</span>);</span> <span class="line" id="L384"> <span class="tok-kw">try</span> self.writeBits(<span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(num_literals - <span class="tok-number">257</span>)), <span class="tok-number">5</span>);</span> <span class="line" id="L385"> <span class="tok-kw">try</span> self.writeBits(<span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(num_offsets - <span class="tok-number">1</span>)), <span class="tok-number">5</span>);</span> <span class="line" id="L386"> <span class="tok-kw">try</span> self.writeBits(<span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(num_codegens - <span class="tok-number">4</span>)), <span class="tok-number">4</span>);</span> <span class="line" id="L387"></span> <span class="line" id="L388"> <span class="tok-kw">var</span> i: <span class="tok-type">u32</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L389"> <span class="tok-kw">while</span> (i < num_codegens) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L390"> <span class="tok-kw">var</span> value = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(self.codegen_encoding.codes[codegen_order[i]].len));</span> <span class="line" id="L391"> <span class="tok-kw">try</span> self.writeBits(<span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(value)), <span class="tok-number">3</span>);</span> <span class="line" id="L392"> }</span> <span class="line" id="L393"></span> <span class="line" id="L394"> i = <span class="tok-number">0</span>;</span> <span class="line" id="L395"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L396"> <span class="tok-kw">var</span> code_word: <span class="tok-type">u32</span> = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(self.codegen[i]));</span> <span class="line" id="L397"> i += <span class="tok-number">1</span>;</span> <span class="line" id="L398"> <span class="tok-kw">if</span> (code_word == bad_code) {</span> <span class="line" id="L399"> <span class="tok-kw">break</span>;</span> <span class="line" id="L400"> }</span> <span class="line" id="L401"> <span class="tok-kw">try</span> self.writeCode(self.codegen_encoding.codes[<span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(code_word))]);</span> <span class="line" id="L402"></span> <span class="line" id="L403"> <span class="tok-kw">switch</span> (code_word) {</span> <span class="line" id="L404"> <span class="tok-number">16</span> => {</span> <span class="line" id="L405"> <span class="tok-kw">try</span> self.writeBits(<span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(self.codegen[i])), <span class="tok-number">2</span>);</span> <span class="line" id="L406"> i += <span class="tok-number">1</span>;</span> <span class="line" id="L407"> },</span> <span class="line" id="L408"> <span class="tok-number">17</span> => {</span> <span class="line" id="L409"> <span class="tok-kw">try</span> self.writeBits(<span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(self.codegen[i])), <span class="tok-number">3</span>);</span> <span class="line" id="L410"> i += <span class="tok-number">1</span>;</span> <span class="line" id="L411"> },</span> <span class="line" id="L412"> <span class="tok-number">18</span> => {</span> <span class="line" id="L413"> <span class="tok-kw">try</span> self.writeBits(<span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(self.codegen[i])), <span class="tok-number">7</span>);</span> <span class="line" id="L414"> i += <span class="tok-number">1</span>;</span> <span class="line" id="L415"> },</span> <span class="line" id="L416"> <span class="tok-kw">else</span> => {},</span> <span class="line" id="L417"> }</span> <span class="line" id="L418"> }</span> <span class="line" id="L419"> }</span> <span class="line" id="L420"></span> <span class="line" id="L421"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">writeStoredHeader</span>(self: Self, length: <span class="tok-type">usize</span>, is_eof: <span class="tok-type">bool</span>) Error!<span class="tok-type">void</span> {</span> <span class="line" id="L422"> <span class="tok-kw">if</span> (self.err) {</span> <span class="line" id="L423"> <span class="tok-kw">return</span>;</span> <span class="line" id="L424"> }</span> <span class="line" id="L425"> <span class="tok-kw">var</span> flag: <span class="tok-type">u32</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L426"> <span class="tok-kw">if</span> (is_eof) {</span> <span class="line" id="L427"> flag = <span class="tok-number">1</span>;</span> <span class="line" id="L428"> }</span> <span class="line" id="L429"> <span class="tok-kw">try</span> self.writeBits(flag, <span class="tok-number">3</span>);</span> <span class="line" id="L430"> <span class="tok-kw">try</span> self.flush();</span> <span class="line" id="L431"> <span class="tok-kw">try</span> self.writeBits(<span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(length)), <span class="tok-number">16</span>);</span> <span class="line" id="L432"> <span class="tok-kw">try</span> self.writeBits(<span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(~<span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, <span class="tok-builtin">@intCast</span>(length)))), <span class="tok-number">16</span>);</span> <span class="line" id="L433"> }</span> <span class="line" id="L434"></span> <span class="line" id="L435"> <span class="tok-kw">fn</span> <span class="tok-fn">writeFixedHeader</span>(self: Self, is_eof: <span class="tok-type">bool</span>) Error!<span class="tok-type">void</span> {</span> <span class="line" id="L436"> <span class="tok-kw">if</span> (self.err) {</span> <span class="line" id="L437"> <span class="tok-kw">return</span>;</span> <span class="line" id="L438"> }</span> <span class="line" id="L439"> <span class="tok-comment">// Indicate that we are a fixed Huffman block</span> </span> <span class="line" id="L440"> <span class="tok-kw">var</span> value: <span class="tok-type">u32</span> = <span class="tok-number">2</span>;</span> <span class="line" id="L441"> <span class="tok-kw">if</span> (is_eof) {</span> <span class="line" id="L442"> value = <span class="tok-number">3</span>;</span> <span class="line" id="L443"> }</span> <span class="line" id="L444"> <span class="tok-kw">try</span> self.writeBits(value, <span class="tok-number">3</span>);</span> <span class="line" id="L445"> }</span> <span class="line" id="L446"></span> <span class="line" id="L447"> <span class="tok-comment">// Write a block of tokens with the smallest encoding.</span> </span> <span class="line" id="L448"> <span class="tok-comment">// The original input can be supplied, and if the huffman encoded data</span> </span> <span class="line" id="L449"> <span class="tok-comment">// is larger than the original bytes, the data will be written as a</span> </span> <span class="line" id="L450"> <span class="tok-comment">// stored block.</span> </span> <span class="line" id="L451"> <span class="tok-comment">// If the input is null, the tokens will always be Huffman encoded.</span> </span> <span class="line" id="L452"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">writeBlock</span>(</span> <span class="line" id="L453"> self: Self,</span> <span class="line" id="L454"> tokens: []<span class="tok-kw">const</span> token.Token,</span> <span class="line" id="L455"> eof: <span class="tok-type">bool</span>,</span> <span class="line" id="L456"> input: ?[]<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L457"> ) Error!<span class="tok-type">void</span> {</span> <span class="line" id="L458"> <span class="tok-kw">if</span> (self.err) {</span> <span class="line" id="L459"> <span class="tok-kw">return</span>;</span> <span class="line" id="L460"> }</span> <span class="line" id="L461"></span> <span class="line" id="L462"> <span class="tok-kw">var</span> lit_and_off = self.indexTokens(tokens);</span> <span class="line" id="L463"> <span class="tok-kw">var</span> num_literals = lit_and_off.num_literals;</span> <span class="line" id="L464"> <span class="tok-kw">var</span> num_offsets = lit_and_off.num_offsets;</span> <span class="line" id="L465"></span> <span class="line" id="L466"> <span class="tok-kw">var</span> extra_bits: <span class="tok-type">u32</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L467"> <span class="tok-kw">var</span> ret = storedSizeFits(input);</span> <span class="line" id="L468"> <span class="tok-kw">var</span> stored_size = ret.size;</span> <span class="line" id="L469"> <span class="tok-kw">var</span> storable = ret.storable;</span> <span class="line" id="L470"></span> <span class="line" id="L471"> <span class="tok-kw">if</span> (storable) {</span> <span class="line" id="L472"> <span class="tok-comment">// We only bother calculating the costs of the extra bits required by</span> </span> <span class="line" id="L473"> <span class="tok-comment">// the length of offset fields (which will be the same for both fixed</span> </span> <span class="line" id="L474"> <span class="tok-comment">// and dynamic encoding), if we need to compare those two encodings</span> </span> <span class="line" id="L475"> <span class="tok-comment">// against stored encoding.</span> </span> <span class="line" id="L476"> <span class="tok-kw">var</span> length_code: <span class="tok-type">u32</span> = length_codes_start + <span class="tok-number">8</span>;</span> <span class="line" id="L477"> <span class="tok-kw">while</span> (length_code < num_literals) : (length_code += <span class="tok-number">1</span>) {</span> <span class="line" id="L478"> <span class="tok-comment">// First eight length codes have extra size = 0.</span> </span> <span class="line" id="L479"> extra_bits += <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(self.literal_freq[length_code])) </span> <span class="line" id="L480"> <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(length_extra_bits[length_code - length_codes_start]));</span> <span class="line" id="L481"> }</span> <span class="line" id="L482"> <span class="tok-kw">var</span> offset_code: <span class="tok-type">u32</span> = <span class="tok-number">4</span>;</span> <span class="line" id="L483"> <span class="tok-kw">while</span> (offset_code < num_offsets) : (offset_code += <span class="tok-number">1</span>) {</span> <span class="line" id="L484"> <span class="tok-comment">// First four offset codes have extra size = 0.</span> </span> <span class="line" id="L485"> extra_bits += <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(self.offset_freq[offset_code])) </span> <span class="line" id="L486"> <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(offset_extra_bits[offset_code]));</span> <span class="line" id="L487"> }</span> <span class="line" id="L488"> }</span> <span class="line" id="L489"></span> <span class="line" id="L490"> <span class="tok-comment">// Figure out smallest code.</span> </span> <span class="line" id="L491"> <span class="tok-comment">// Fixed Huffman baseline.</span> </span> <span class="line" id="L492"> <span class="tok-kw">var</span> literal_encoding = &self.fixed_literal_encoding;</span> <span class="line" id="L493"> <span class="tok-kw">var</span> offset_encoding = &self.fixed_offset_encoding;</span> <span class="line" id="L494"> <span class="tok-kw">var</span> size = self.fixedSize(extra_bits);</span> <span class="line" id="L495"></span> <span class="line" id="L496"> <span class="tok-comment">// Dynamic Huffman?</span> </span> <span class="line" id="L497"> <span class="tok-kw">var</span> num_codegens: <span class="tok-type">u32</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L498"></span> <span class="line" id="L499"> <span class="tok-comment">// Generate codegen and codegenFrequencies, which indicates how to encode</span> </span> <span class="line" id="L500"> <span class="tok-comment">// the literal_encoding and the offset_encoding.</span> </span> <span class="line" id="L501"> self.generateCodegen(</span> <span class="line" id="L502"> num_literals,</span> <span class="line" id="L503"> num_offsets,</span> <span class="line" id="L504"> &self.literal_encoding,</span> <span class="line" id="L505"> &self.offset_encoding,</span> <span class="line" id="L506"> );</span> <span class="line" id="L507"> self.codegen_encoding.generate(self.codegen_freq[<span class="tok-number">0</span>..], <span class="tok-number">7</span>);</span> <span class="line" id="L508"> <span class="tok-kw">var</span> dynamic_size = self.dynamicSize(</span> <span class="line" id="L509"> &self.literal_encoding,</span> <span class="line" id="L510"> &self.offset_encoding,</span> <span class="line" id="L511"> extra_bits,</span> <span class="line" id="L512"> );</span> <span class="line" id="L513"> <span class="tok-kw">var</span> dyn_size = dynamic_size.size;</span> <span class="line" id="L514"> num_codegens = dynamic_size.num_codegens;</span> <span class="line" id="L515"></span> <span class="line" id="L516"> <span class="tok-kw">if</span> (dyn_size < size) {</span> <span class="line" id="L517"> size = dyn_size;</span> <span class="line" id="L518"> literal_encoding = &self.literal_encoding;</span> <span class="line" id="L519"> offset_encoding = &self.offset_encoding;</span> <span class="line" id="L520"> }</span> <span class="line" id="L521"></span> <span class="line" id="L522"> <span class="tok-comment">// Stored bytes?</span> </span> <span class="line" id="L523"> <span class="tok-kw">if</span> (storable <span class="tok-kw">and</span> stored_size < size) {</span> <span class="line" id="L524"> <span class="tok-kw">try</span> self.writeStoredHeader(input.?.len, eof);</span> <span class="line" id="L525"> <span class="tok-kw">try</span> self.writeBytes(input.?);</span> <span class="line" id="L526"> <span class="tok-kw">return</span>;</span> <span class="line" id="L527"> }</span> <span class="line" id="L528"></span> <span class="line" id="L529"> <span class="tok-comment">// Huffman.</span> </span> <span class="line" id="L530"> <span class="tok-kw">if</span> (<span class="tok-builtin">@intFromPtr</span>(literal_encoding) == <span class="tok-builtin">@intFromPtr</span>(&self.fixed_literal_encoding)) {</span> <span class="line" id="L531"> <span class="tok-kw">try</span> self.writeFixedHeader(eof);</span> <span class="line" id="L532"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L533"> <span class="tok-kw">try</span> self.writeDynamicHeader(num_literals, num_offsets, num_codegens, eof);</span> <span class="line" id="L534"> }</span> <span class="line" id="L535"></span> <span class="line" id="L536"> <span class="tok-comment">// Write the tokens.</span> </span> <span class="line" id="L537"> <span class="tok-kw">try</span> self.writeTokens(tokens, literal_encoding.codes, offset_encoding.codes);</span> <span class="line" id="L538"> }</span> <span class="line" id="L539"></span> <span class="line" id="L540"> <span class="tok-comment">// writeBlockDynamic encodes a block using a dynamic Huffman table.</span> </span> <span class="line" id="L541"> <span class="tok-comment">// This should be used if the symbols used have a disproportionate</span> </span> <span class="line" id="L542"> <span class="tok-comment">// histogram distribution.</span> </span> <span class="line" id="L543"> <span class="tok-comment">// If input is supplied and the compression savings are below 1/16th of the</span> </span> <span class="line" id="L544"> <span class="tok-comment">// input size the block is stored.</span> </span> <span class="line" id="L545"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">writeBlockDynamic</span>(</span> <span class="line" id="L546"> self: Self,</span> <span class="line" id="L547"> tokens: []<span class="tok-kw">const</span> token.Token,</span> <span class="line" id="L548"> eof: <span class="tok-type">bool</span>,</span> <span class="line" id="L549"> input: ?[]<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L550"> ) Error!<span class="tok-type">void</span> {</span> <span class="line" id="L551"> <span class="tok-kw">if</span> (self.err) {</span> <span class="line" id="L552"> <span class="tok-kw">return</span>;</span> <span class="line" id="L553"> }</span> <span class="line" id="L554"></span> <span class="line" id="L555"> <span class="tok-kw">var</span> total_tokens = self.indexTokens(tokens);</span> <span class="line" id="L556"> <span class="tok-kw">var</span> num_literals = total_tokens.num_literals;</span> <span class="line" id="L557"> <span class="tok-kw">var</span> num_offsets = total_tokens.num_offsets;</span> <span class="line" id="L558"></span> <span class="line" id="L559"> <span class="tok-comment">// Generate codegen and codegenFrequencies, which indicates how to encode</span> </span> <span class="line" id="L560"> <span class="tok-comment">// the literal_encoding and the offset_encoding.</span> </span> <span class="line" id="L561"> self.generateCodegen(</span> <span class="line" id="L562"> num_literals,</span> <span class="line" id="L563"> num_offsets,</span> <span class="line" id="L564"> &self.literal_encoding,</span> <span class="line" id="L565"> &self.offset_encoding,</span> <span class="line" id="L566"> );</span> <span class="line" id="L567"> self.codegen_encoding.generate(self.codegen_freq[<span class="tok-number">0</span>..], <span class="tok-number">7</span>);</span> <span class="line" id="L568"> <span class="tok-kw">var</span> dynamic_size = self.dynamicSize(&self.literal_encoding, &self.offset_encoding, <span class="tok-number">0</span>);</span> <span class="line" id="L569"> <span class="tok-kw">var</span> size = dynamic_size.size;</span> <span class="line" id="L570"> <span class="tok-kw">var</span> num_codegens = dynamic_size.num_codegens;</span> <span class="line" id="L571"></span> <span class="line" id="L572"> <span class="tok-comment">// Store bytes, if we don't get a reasonable improvement.</span> </span> <span class="line" id="L573"></span> <span class="line" id="L574"> <span class="tok-kw">var</span> stored_size = storedSizeFits(input);</span> <span class="line" id="L575"> <span class="tok-kw">var</span> ssize = stored_size.size;</span> <span class="line" id="L576"> <span class="tok-kw">var</span> storable = stored_size.storable;</span> <span class="line" id="L577"> <span class="tok-kw">if</span> (storable <span class="tok-kw">and</span> ssize < (size + (size >> <span class="tok-number">4</span>))) {</span> <span class="line" id="L578"> <span class="tok-kw">try</span> self.writeStoredHeader(input.?.len, eof);</span> <span class="line" id="L579"> <span class="tok-kw">try</span> self.writeBytes(input.?);</span> <span class="line" id="L580"> <span class="tok-kw">return</span>;</span> <span class="line" id="L581"> }</span> <span class="line" id="L582"></span> <span class="line" id="L583"> <span class="tok-comment">// Write Huffman table.</span> </span> <span class="line" id="L584"> <span class="tok-kw">try</span> self.writeDynamicHeader(num_literals, num_offsets, num_codegens, eof);</span> <span class="line" id="L585"></span> <span class="line" id="L586"> <span class="tok-comment">// Write the tokens.</span> </span> <span class="line" id="L587"> <span class="tok-kw">try</span> self.writeTokens(tokens, self.literal_encoding.codes, self.offset_encoding.codes);</span> <span class="line" id="L588"> }</span> <span class="line" id="L589"></span> <span class="line" id="L590"> <span class="tok-kw">const</span> TotalIndexedTokens = <span class="tok-kw">struct</span> {</span> <span class="line" id="L591"> num_literals: <span class="tok-type">u32</span>,</span> <span class="line" id="L592"> num_offsets: <span class="tok-type">u32</span>,</span> <span class="line" id="L593"> };</span> <span class="line" id="L594"></span> <span class="line" id="L595"> <span class="tok-comment">// Indexes a slice of tokens followed by an end_block_marker, and updates</span> </span> <span class="line" id="L596"> <span class="tok-comment">// literal_freq and offset_freq, and generates literal_encoding</span> </span> <span class="line" id="L597"> <span class="tok-comment">// and offset_encoding.</span> </span> <span class="line" id="L598"> <span class="tok-comment">// The number of literal and offset tokens is returned.</span> </span> <span class="line" id="L599"> <span class="tok-kw">fn</span> <span class="tok-fn">indexTokens</span>(self: Self, tokens: []<span class="tok-kw">const</span> token.Token) TotalIndexedTokens {</span> <span class="line" id="L600"> <span class="tok-kw">var</span> num_literals: <span class="tok-type">u32</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L601"> <span class="tok-kw">var</span> num_offsets: <span class="tok-type">u32</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L602"></span> <span class="line" id="L603"> <span class="tok-kw">for</span> (self.literal_freq, <span class="tok-number">0</span>..) \|_, i\| {</span> <span class="line" id="L604"> self.literal_freq[i] = <span class="tok-number">0</span>;</span> <span class="line" id="L605"> }</span> <span class="line" id="L606"> <span class="tok-kw">for</span> (self.offset_freq, <span class="tok-number">0</span>..) \|_, i\| {</span> <span class="line" id="L607"> self.offset_freq[i] = <span class="tok-number">0</span>;</span> <span class="line" id="L608"> }</span> <span class="line" id="L609"></span> <span class="line" id="L610"> <span class="tok-kw">for</span> (tokens) \|t\| {</span> <span class="line" id="L611"> <span class="tok-kw">if</span> (t < token.match_type) {</span> <span class="line" id="L612"> self.literal_freq[token.literal(t)] += <span class="tok-number">1</span>;</span> <span class="line" id="L613"> <span class="tok-kw">continue</span>;</span> <span class="line" id="L614"> }</span> <span class="line" id="L615"> <span class="tok-kw">var</span> length = token.length(t);</span> <span class="line" id="L616"> <span class="tok-kw">var</span> offset = token.offset(t);</span> <span class="line" id="L617"> self.literal_freq[length_codes_start + token.lengthCode(length)] += <span class="tok-number">1</span>;</span> <span class="line" id="L618"> self.offset_freq[token.offsetCode(offset)] += <span class="tok-number">1</span>;</span> <span class="line" id="L619"> }</span> <span class="line" id="L620"> <span class="tok-comment">// add end_block_marker token at the end</span> </span> <span class="line" id="L621"> self.literal_freq[token.literal(deflate_const.end_block_marker)] += <span class="tok-number">1</span>;</span> <span class="line" id="L622"></span> <span class="line" id="L623"> <span class="tok-comment">// get the number of literals</span> </span> <span class="line" id="L624"> num_literals = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(self.literal_freq.len));</span> <span class="line" id="L625"> <span class="tok-kw">while</span> (self.literal_freq[num_literals - <span class="tok-number">1</span>] == <span class="tok-number">0</span>) {</span> <span class="line" id="L626"> num_literals -= <span class="tok-number">1</span>;</span> <span class="line" id="L627"> }</span> <span class="line" id="L628"> <span class="tok-comment">// get the number of offsets</span> </span> <span class="line" id="L629"> num_offsets = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(self.offset_freq.len));</span> <span class="line" id="L630"> <span class="tok-kw">while</span> (num_offsets > <span class="tok-number">0</span> <span class="tok-kw">and</span> self.offset_freq[num_offsets - <span class="tok-number">1</span>] == <span class="tok-number">0</span>) {</span> <span class="line" id="L631"> num_offsets -= <span class="tok-number">1</span>;</span> <span class="line" id="L632"> }</span> <span class="line" id="L633"> <span class="tok-kw">if</span> (num_offsets == <span class="tok-number">0</span>) {</span> <span class="line" id="L634"> <span class="tok-comment">// We haven't found a single match. If we want to go with the dynamic encoding,</span> </span> <span class="line" id="L635"> <span class="tok-comment">// we should count at least one offset to be sure that the offset huffman tree could be encoded.</span> </span> <span class="line" id="L636"> self.offset_freq[<span class="tok-number">0</span>] = <span class="tok-number">1</span>;</span> <span class="line" id="L637"> num_offsets = <span class="tok-number">1</span>;</span> <span class="line" id="L638"> }</span> <span class="line" id="L639"> self.literal_encoding.generate(self.literal_freq, <span class="tok-number">15</span>);</span> <span class="line" id="L640"> self.offset_encoding.generate(self.offset_freq, <span class="tok-number">15</span>);</span> <span class="line" id="L641"> <span class="tok-kw">return</span> TotalIndexedTokens{</span> <span class="line" id="L642"> .num_literals = num_literals,</span> <span class="line" id="L643"> .num_offsets = num_offsets,</span> <span class="line" id="L644"> };</span> <span class="line" id="L645"> }</span> <span class="line" id="L646"></span> <span class="line" id="L647"> <span class="tok-comment">// Writes a slice of tokens to the output followed by and end_block_marker.</span> </span> <span class="line" id="L648"> <span class="tok-comment">// codes for literal and offset encoding must be supplied.</span> </span> <span class="line" id="L649"> <span class="tok-kw">fn</span> <span class="tok-fn">writeTokens</span>(</span> <span class="line" id="L650"> self: Self,</span> <span class="line" id="L651"> tokens: []<span class="tok-kw">const</span> token.Token,</span> <span class="line" id="L652"> le_codes: []hm_code.HuffCode,</span> <span class="line" id="L653"> oe_codes: []hm_code.HuffCode,</span> <span class="line" id="L654"> ) Error!<span class="tok-type">void</span> {</span> <span class="line" id="L655"> <span class="tok-kw">if</span> (self.err) {</span> <span class="line" id="L656"> <span class="tok-kw">return</span>;</span> <span class="line" id="L657"> }</span> <span class="line" id="L658"> <span class="tok-kw">for</span> (tokens) \|t\| {</span> <span class="line" id="L659"> <span class="tok-kw">if</span> (t < token.match_type) {</span> <span class="line" id="L660"> <span class="tok-kw">try</span> self.writeCode(le_codes[token.literal(t)]);</span> <span class="line" id="L661"> <span class="tok-kw">continue</span>;</span> <span class="line" id="L662"> }</span> <span class="line" id="L663"> <span class="tok-comment">// Write the length</span> </span> <span class="line" id="L664"> <span class="tok-kw">var</span> length = token.length(t);</span> <span class="line" id="L665"> <span class="tok-kw">var</span> length_code = token.lengthCode(length);</span> <span class="line" id="L666"> <span class="tok-kw">try</span> self.writeCode(le_codes[length_code + length_codes_start]);</span> <span class="line" id="L667"> <span class="tok-kw">var</span> extra_length_bits = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(length_extra_bits[length_code]));</span> <span class="line" id="L668"> <span class="tok-kw">if</span> (extra_length_bits > <span class="tok-number">0</span>) {</span> <span class="line" id="L669"> <span class="tok-kw">var</span> extra_length = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(length - length_base[length_code]));</span> <span class="line" id="L670"> <span class="tok-kw">try</span> self.writeBits(extra_length, extra_length_bits);</span> <span class="line" id="L671"> }</span> <span class="line" id="L672"> <span class="tok-comment">// Write the offset</span> </span> <span class="line" id="L673"> <span class="tok-kw">var</span> offset = token.offset(t);</span> <span class="line" id="L674"> <span class="tok-kw">var</span> offset_code = token.offsetCode(offset);</span> <span class="line" id="L675"> <span class="tok-kw">try</span> self.writeCode(oe_codes[offset_code]);</span> <span class="line" id="L676"> <span class="tok-kw">var</span> extra_offset_bits = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(offset_extra_bits[offset_code]));</span> <span class="line" id="L677"> <span class="tok-kw">if</span> (extra_offset_bits > <span class="tok-number">0</span>) {</span> <span class="line" id="L678"> <span class="tok-kw">var</span> extra_offset = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(offset - offset_base[offset_code]));</span> <span class="line" id="L679"> <span class="tok-kw">try</span> self.writeBits(extra_offset, extra_offset_bits);</span> <span class="line" id="L680"> }</span> <span class="line" id="L681"> }</span> <span class="line" id="L682"> <span class="tok-comment">// add end_block_marker at the end</span> </span> <span class="line" id="L683"> <span class="tok-kw">try</span> self.writeCode(le_codes[token.literal(deflate_const.end_block_marker)]);</span> <span class="line" id="L684"> }</span> <span class="line" id="L685"></span> <span class="line" id="L686"> <span class="tok-comment">// Encodes a block of bytes as either Huffman encoded literals or uncompressed bytes</span> </span> <span class="line" id="L687"> <span class="tok-comment">// if the results only gains very little from compression.</span> </span> <span class="line" id="L688"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">writeBlockHuff</span>(self: Self, eof: <span class="tok-type">bool</span>, input: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) Error!<span class="tok-type">void</span> {</span> <span class="line" id="L689"> <span class="tok-kw">if</span> (self.err) {</span> <span class="line" id="L690"> <span class="tok-kw">return</span>;</span> <span class="line" id="L691"> }</span> <span class="line" id="L692"></span> <span class="line" id="L693"> <span class="tok-comment">// Clear histogram</span> </span> <span class="line" id="L694"> <span class="tok-kw">for</span> (self.literal_freq, <span class="tok-number">0</span>..) \|_, i\| {</span> <span class="line" id="L695"> self.literal_freq[i] = <span class="tok-number">0</span>;</span> <span class="line" id="L696"> }</span> <span class="line" id="L697"></span> <span class="line" id="L698"> <span class="tok-comment">// Add everything as literals</span> </span> <span class="line" id="L699"> histogram(input, &self.literal_freq);</span> <span class="line" id="L700"></span> <span class="line" id="L701"> self.literal_freq[deflate_const.end_block_marker] = <span class="tok-number">1</span>;</span> <span class="line" id="L702"></span> <span class="line" id="L703"> <span class="tok-kw">const</span> num_literals = deflate_const.end_block_marker + <span class="tok-number">1</span>;</span> <span class="line" id="L704"> self.offset_freq[<span class="tok-number">0</span>] = <span class="tok-number">1</span>;</span> <span class="line" id="L705"> <span class="tok-kw">const</span> num_offsets = <span class="tok-number">1</span>;</span> <span class="line" id="L706"></span> <span class="line" id="L707"> self.literal_encoding.generate(self.literal_freq, <span class="tok-number">15</span>);</span> <span class="line" id="L708"></span> <span class="line" id="L709"> <span class="tok-comment">// Figure out smallest code.</span> </span> <span class="line" id="L710"> <span class="tok-comment">// Always use dynamic Huffman or Store</span> </span> <span class="line" id="L711"> <span class="tok-kw">var</span> num_codegens: <span class="tok-type">u32</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L712"></span> <span class="line" id="L713"> <span class="tok-comment">// Generate codegen and codegenFrequencies, which indicates how to encode</span> </span> <span class="line" id="L714"> <span class="tok-comment">// the literal_encoding and the offset_encoding.</span> </span> <span class="line" id="L715"> self.generateCodegen(</span> <span class="line" id="L716"> num_literals,</span> <span class="line" id="L717"> num_offsets,</span> <span class="line" id="L718"> &self.literal_encoding,</span> <span class="line" id="L719"> &self.huff_offset,</span> <span class="line" id="L720"> );</span> <span class="line" id="L721"> self.codegen_encoding.generate(self.codegen_freq[<span class="tok-number">0</span>..], <span class="tok-number">7</span>);</span> <span class="line" id="L722"> <span class="tok-kw">var</span> dynamic_size = self.dynamicSize(&self.literal_encoding, &self.huff_offset, <span class="tok-number">0</span>);</span> <span class="line" id="L723"> <span class="tok-kw">var</span> size = dynamic_size.size;</span> <span class="line" id="L724"> num_codegens = dynamic_size.num_codegens;</span> <span class="line" id="L725"></span> <span class="line" id="L726"> <span class="tok-comment">// Store bytes, if we don't get a reasonable improvement.</span> </span> <span class="line" id="L727"></span> <span class="line" id="L728"> <span class="tok-kw">var</span> stored_size_ret = storedSizeFits(input);</span> <span class="line" id="L729"> <span class="tok-kw">var</span> ssize = stored_size_ret.size;</span> <span class="line" id="L730"> <span class="tok-kw">var</span> storable = stored_size_ret.storable;</span> <span class="line" id="L731"></span> <span class="line" id="L732"> <span class="tok-kw">if</span> (storable <span class="tok-kw">and</span> ssize < (size + (size >> <span class="tok-number">4</span>))) {</span> <span class="line" id="L733"> <span class="tok-kw">try</span> self.writeStoredHeader(input.len, eof);</span> <span class="line" id="L734"> <span class="tok-kw">try</span> self.writeBytes(input);</span> <span class="line" id="L735"> <span class="tok-kw">return</span>;</span> <span class="line" id="L736"> }</span> <span class="line" id="L737"></span> <span class="line" id="L738"> <span class="tok-comment">// Huffman.</span> </span> <span class="line" id="L739"> <span class="tok-kw">try</span> self.writeDynamicHeader(num_literals, num_offsets, num_codegens, eof);</span> <span class="line" id="L740"> <span class="tok-kw">var</span> encoding = self.literal_encoding.codes[<span class="tok-number">0</span>..<span class="tok-number">257</span>];</span> <span class="line" id="L741"> <span class="tok-kw">var</span> n = self.nbytes;</span> <span class="line" id="L742"> <span class="tok-kw">for</span> (input) \|t\| {</span> <span class="line" id="L743"> <span class="tok-comment">// Bitwriting inlined, ~30% speedup</span> </span> <span class="line" id="L744"> <span class="tok-kw">var</span> c = encoding[t];</span> <span class="line" id="L745"> self.bits \|= <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@intCast</span>(c.code)) << <span class="tok-builtin">@as</span>(<span class="tok-type">u6</span>, <span class="tok-builtin">@intCast</span>(self.nbits));</span> <span class="line" id="L746"> self.nbits += <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(c.len));</span> <span class="line" id="L747"> <span class="tok-kw">if</span> (self.nbits < <span class="tok-number">48</span>) {</span> <span class="line" id="L748"> <span class="tok-kw">continue</span>;</span> <span class="line" id="L749"> }</span> <span class="line" id="L750"> <span class="tok-comment">// Store 6 bytes</span> </span> <span class="line" id="L751"> <span class="tok-kw">var</span> bits = self.bits;</span> <span class="line" id="L752"> self.bits >>= <span class="tok-number">48</span>;</span> <span class="line" id="L753"> self.nbits -= <span class="tok-number">48</span>;</span> <span class="line" id="L754"> <span class="tok-kw">var</span> bytes = self.bytes[n..][<span class="tok-number">0</span>..<span class="tok-number">6</span>];</span> <span class="line" id="L755"> bytes[<span class="tok-number">0</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>(bits));</span> <span class="line" id="L756"> bytes[<span class="tok-number">1</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>(bits >> <span class="tok-number">8</span>));</span> <span class="line" id="L757"> bytes[<span class="tok-number">2</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>(bits >> <span class="tok-number">16</span>));</span> <span class="line" id="L758"> bytes[<span class="tok-number">3</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>(bits >> <span class="tok-number">24</span>));</span> <span class="line" id="L759"> bytes[<span class="tok-number">4</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>(bits >> <span class="tok-number">32</span>));</span> <span class="line" id="L760"> bytes[<span class="tok-number">5</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>(bits >> <span class="tok-number">40</span>));</span> <span class="line" id="L761"> n += <span class="tok-number">6</span>;</span> <span class="line" id="L762"> <span class="tok-kw">if</span> (n < buffer_flush_size) {</span> <span class="line" id="L763"> <span class="tok-kw">continue</span>;</span> <span class="line" id="L764"> }</span> <span class="line" id="L765"> <span class="tok-kw">try</span> self.write(self.bytes[<span class="tok-number">0</span>..n]);</span> <span class="line" id="L766"> <span class="tok-kw">if</span> (self.err) {</span> <span class="line" id="L767"> <span class="tok-kw">return</span>; <span class="tok-comment">// Return early in the event of write failures</span> </span> <span class="line" id="L768"> }</span> <span class="line" id="L769"> n = <span class="tok-number">0</span>;</span> <span class="line" id="L770"> }</span> <span class="line" id="L771"> self.nbytes = n;</span> <span class="line" id="L772"> <span class="tok-kw">try</span> self.writeCode(encoding[deflate_const.end_block_marker]);</span> <span class="line" id="L773"> }</span> <span class="line" id="L774"></span> <span class="line" id="L775"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">deinit</span>(self: Self) <span class="tok-type">void</span> {</span> <span class="line" id="L776"> self.allocator.free(self.literal_freq);</span> <span class="line" id="L777"> self.allocator.free(self.offset_freq);</span> <span class="line" id="L778"> self.allocator.free(self.codegen);</span> <span class="line" id="L779"> self.literal_encoding.deinit();</span> <span class="line" id="L780"> self.codegen_encoding.deinit();</span> <span class="line" id="L781"> self.offset_encoding.deinit();</span> <span class="line" id="L782"> self.fixed_literal_encoding.deinit();</span> <span class="line" id="L783"> self.fixed_offset_encoding.deinit();</span> <span class="line" id="L784"> self.huff_offset.deinit();</span> <span class="line" id="L785"> }</span> <span class="line" id="L786"> };</span> <span class="line" id="L787">}</span> <span class="line" id="L788"></span> <span class="line" id="L789"><span class="tok-kw">const</span> DynamicSize = <span class="tok-kw">struct</span> {</span> <span class="line" id="L790"> size: <span class="tok-type">u32</span>,</span> <span class="line" id="L791"> num_codegens: <span class="tok-type">u32</span>,</span> <span class="line" id="L792">};</span> <span class="line" id="L793"></span> <span class="line" id="L794"><span class="tok-kw">const</span> StoredSize = <span class="tok-kw">struct</span> {</span> <span class="line" id="L795"> size: <span class="tok-type">u32</span>,</span> <span class="line" id="L796"> storable: <span class="tok-type">bool</span>,</span> <span class="line" id="L797">};</span> <span class="line" id="L798"></span> <span class="line" id="L799"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">huffmanBitWriter</span>(allocator: Allocator, writer: <span class="tok-kw">anytype</span>) !HuffmanBitWriter(<span class="tok-builtin">@TypeOf</span>(writer)) {</span> <span class="line" id="L800"> <span class="tok-kw">var</span> offset_freq = [<span class="tok-number">1</span>]<span class="tok-type">u16</span>{<span class="tok-number">0</span>} deflate_const.offset_code_count;</span> <span class="line" id="L801"> offset_freq[<span class="tok-number">0</span>] = <span class="tok-number">1</span>;</span> <span class="line" id="L802"> <span class="tok-comment">// huff_offset is a static offset encoder used for huffman only encoding.</span> </span> <span class="line" id="L803"> <span class="tok-comment">// It can be reused since we will not be encoding offset values.</span> </span> <span class="line" id="L804"> <span class="tok-kw">var</span> huff_offset = <span class="tok-kw">try</span> hm_code.newHuffmanEncoder(allocator, deflate_const.offset_code_count);</span> <span class="line" id="L805"> huff_offset.generate(offset_freq[<span class="tok-number">0</span>..], <span class="tok-number">15</span>);</span> <span class="line" id="L806"></span> <span class="line" id="L807"> <span class="tok-kw">return</span> HuffmanBitWriter(<span class="tok-builtin">@TypeOf</span>(writer)){</span> <span class="line" id="L808"> .inner_writer = writer,</span> <span class="line" id="L809"> .bytes_written = <span class="tok-number">0</span>,</span> <span class="line" id="L810"> .bits = <span class="tok-number">0</span>,</span> <span class="line" id="L811"> .nbits = <span class="tok-number">0</span>,</span> <span class="line" id="L812"> .nbytes = <span class="tok-number">0</span>,</span> <span class="line" id="L813"> .bytes = [<span class="tok-number">1</span>]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} buffer_size,</span> <span class="line" id="L814"> .codegen_freq = [<span class="tok-number">1</span>]<span class="tok-type">u16</span>{<span class="tok-number">0</span>} ** codegen_code_count,</span> <span class="line" id="L815"> .literal_freq = <span class="tok-kw">try</span> allocator.alloc(<span class="tok-type">u16</span>, deflate_const.max_num_lit),</span> <span class="line" id="L816"> .offset_freq = <span class="tok-kw">try</span> allocator.alloc(<span class="tok-type">u16</span>, deflate_const.offset_code_count),</span> <span class="line" id="L817"> .codegen = <span class="tok-kw">try</span> allocator.alloc(<span class="tok-type">u8</span>, deflate_const.max_num_lit + deflate_const.offset_code_count + <span class="tok-number">1</span>),</span> <span class="line" id="L818"> .literal_encoding = <span class="tok-kw">try</span> hm_code.newHuffmanEncoder(allocator, deflate_const.max_num_lit),</span> <span class="line" id="L819"> .codegen_encoding = <span class="tok-kw">try</span> hm_code.newHuffmanEncoder(allocator, codegen_code_count),</span> <span class="line" id="L820"> .offset_encoding = <span class="tok-kw">try</span> hm_code.newHuffmanEncoder(allocator, deflate_const.offset_code_count),</span> <span class="line" id="L821"> .allocator = allocator,</span> <span class="line" id="L822"> .fixed_literal_encoding = <span class="tok-kw">try</span> hm_code.generateFixedLiteralEncoding(allocator),</span> <span class="line" id="L823"> .fixed_offset_encoding = <span class="tok-kw">try</span> hm_code.generateFixedOffsetEncoding(allocator),</span> <span class="line" id="L824"> .huff_offset = huff_offset,</span> <span class="line" id="L825"> };</span> <span class="line" id="L826">}</span> <span class="line" id="L827"></span> <span class="line" id="L828"><span class="tok-comment">// histogram accumulates a histogram of b in h.</span> </span> <span class="line" id="L829"><span class="tok-comment">//</span> </span> <span class="line" id="L830"><span class="tok-comment">// h.len must be >= 256, and h's elements must be all zeroes.</span> </span> <span class="line" id="L831"><span class="tok-kw">fn</span> <span class="tok-fn">histogram</span>(b: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, h: []<span class="tok-type">u16</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L832"> <span class="tok-kw">var</span> lh = h.[<span class="tok-number">0</span>..<span class="tok-number">256</span>];</span> <span class="line" id="L833"> <span class="tok-kw">for</span> (b) \|t\| {</span> <span class="line" id="L834"> lh[t] += <span class="tok-number">1</span>;</span> <span class="line" id="L835"> }</span> <span class="line" id="L836">}</span> <span class="line" id="L837"></span> <span class="line" id="L838"><span class="tok-comment">// tests</span> </span> <span class="line" id="L839"><span class="tok-kw">const</span> expect = std.testing.expect;</span> <span class="line" id="L840"><span class="tok-kw">const</span> fmt = std.fmt;</span> <span class="line" id="L841"><span class="tok-kw">const</span> math = std.math;</span> <span class="line" id="L842"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L843"><span class="tok-kw">const</span> testing = std.testing;</span> <span class="line" id="L844"></span> <span class="line" id="L845"><span class="tok-kw">const</span> ArrayList = std.ArrayList;</span> <span class="line" id="L846"></span> <span class="line" id="L847"><span class="tok-kw">test</span> <span class="tok-str">"writeBlockHuff"</span> {</span> <span class="line" id="L848"> <span class="tok-comment">// Tests huffman encoding against reference files to detect possible regressions.</span> </span> <span class="line" id="L849"> <span class="tok-comment">// If encoding/bit allocation changes you can regenerate these files</span> </span> <span class="line" id="L850"></span> <span class="line" id="L851"> <span class="tok-kw">try</span> testBlockHuff(</span> <span class="line" id="L852"> <span class="tok-str">"huffman-null-max.input"</span>,</span> <span class="line" id="L853"> <span class="tok-str">"huffman-null-max.golden"</span>,</span> <span class="line" id="L854"> );</span> <span class="line" id="L855"> <span class="tok-kw">try</span> testBlockHuff(</span> <span class="line" id="L856"> <span class="tok-str">"huffman-pi.input"</span>,</span> <span class="line" id="L857"> <span class="tok-str">"huffman-pi.golden"</span>,</span> <span class="line" id="L858"> );</span> <span class="line" id="L859"> <span class="tok-kw">try</span> testBlockHuff(</span> <span class="line" id="L860"> <span class="tok-str">"huffman-rand-1k.input"</span>,</span> <span class="line" id="L861"> <span class="tok-str">"huffman-rand-1k.golden"</span>,</span> <span class="line" id="L862"> );</span> <span class="line" id="L863"> <span class="tok-kw">try</span> testBlockHuff(</span> <span class="line" id="L864"> <span class="tok-str">"huffman-rand-limit.input"</span>,</span> <span class="line" id="L865"> <span class="tok-str">"huffman-rand-limit.golden"</span>,</span> <span class="line" id="L866"> );</span> <span class="line" id="L867"> <span class="tok-kw">try</span> testBlockHuff(</span> <span class="line" id="L868"> <span class="tok-str">"huffman-rand-max.input"</span>,</span> <span class="line" id="L869"> <span class="tok-str">"huffman-rand-max.golden"</span>,</span> <span class="line" id="L870"> );</span> <span class="line" id="L871"> <span class="tok-kw">try</span> testBlockHuff(</span> <span class="line" id="L872"> <span class="tok-str">"huffman-shifts.input"</span>,</span> <span class="line" id="L873"> <span class="tok-str">"huffman-shifts.golden"</span>,</span> <span class="line" id="L874"> );</span> <span class="line" id="L875"> <span class="tok-kw">try</span> testBlockHuff(</span> <span class="line" id="L876"> <span class="tok-str">"huffman-text.input"</span>,</span> <span class="line" id="L877"> <span class="tok-str">"huffman-text.golden"</span>,</span> <span class="line" id="L878"> );</span> <span class="line" id="L879"> <span class="tok-kw">try</span> testBlockHuff(</span> <span class="line" id="L880"> <span class="tok-str">"huffman-text-shift.input"</span>,</span> <span class="line" id="L881"> <span class="tok-str">"huffman-text-shift.golden"</span>,</span> <span class="line" id="L882"> );</span> <span class="line" id="L883"> <span class="tok-kw">try</span> testBlockHuff(</span> <span class="line" id="L884"> <span class="tok-str">"huffman-zero.input"</span>,</span> <span class="line" id="L885"> <span class="tok-str">"huffman-zero.golden"</span>,</span> <span class="line" id="L886"> );</span> <span class="line" id="L887">}</span> <span class="line" id="L888"></span> <span class="line" id="L889"><span class="tok-kw">fn</span> <span class="tok-fn">testBlockHuff</span>(<span class="tok-kw">comptime</span> in_name: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, <span class="tok-kw">comptime</span> want_name: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L890"> <span class="tok-kw">const</span> in: []<span class="tok-kw">const</span> <span class="tok-type">u8</span> = <span class="tok-builtin">@embedFile</span>(<span class="tok-str">"testdata/"</span> ++ in_name);</span> <span class="line" id="L891"> <span class="tok-kw">const</span> want: []<span class="tok-kw">const</span> <span class="tok-type">u8</span> = <span class="tok-builtin">@embedFile</span>(<span class="tok-str">"testdata/"</span> ++ want_name);</span> <span class="line" id="L892"></span> <span class="line" id="L893"> <span class="tok-kw">var</span> buf = ArrayList(<span class="tok-type">u8</span>).init(testing.allocator);</span> <span class="line" id="L894"> <span class="tok-kw">defer</span> buf.deinit();</span> <span class="line" id="L895"> <span class="tok-kw">var</span> bw = <span class="tok-kw">try</span> huffmanBitWriter(testing.allocator, buf.writer());</span> <span class="line" id="L896"> <span class="tok-kw">defer</span> bw.deinit();</span> <span class="line" id="L897"> <span class="tok-kw">try</span> bw.writeBlockHuff(<span class="tok-null">false</span>, in);</span> <span class="line" id="L898"> <span class="tok-kw">try</span> bw.flush();</span> <span class="line" id="L899"></span> <span class="line" id="L900"> <span class="tok-kw">try</span> std.testing.expectEqualSlices(<span class="tok-type">u8</span>, want, buf.items);</span> <span class="line" id="L901"></span> <span class="line" id="L902"> <span class="tok-comment">// Test if the writer produces the same output after reset.</span> </span> <span class="line" id="L903"> <span class="tok-kw">var</span> buf_after_reset = ArrayList(<span class="tok-type">u8</span>).init(testing.allocator);</span> <span class="line" id="L904"> <span class="tok-kw">defer</span> buf_after_reset.deinit();</span> <span class="line" id="L905"></span> <span class="line" id="L906"> bw.reset(buf_after_reset.writer());</span> <span class="line" id="L907"></span> <span class="line" id="L908"> <span class="tok-kw">try</span> bw.writeBlockHuff(<span class="tok-null">false</span>, in);</span> <span class="line" id="L909"> <span class="tok-kw">try</span> bw.flush();</span> <span class="line" id="L910"></span> <span class="line" id="L911"> <span class="tok-kw">try</span> std.testing.expectEqualSlices(<span class="tok-type">u8</span>, buf.items, buf_after_reset.items);</span> <span class="line" id="L912"> <span class="tok-kw">try</span> std.testing.expectEqualSlices(<span class="tok-type">u8</span>, want, buf_after_reset.items);</span> <span class="line" id="L913"></span> <span class="line" id="L914"> <span class="tok-kw">try</span> testWriterEOF(.write_huffman_block, &[<span class="tok-number">0</span>]token.Token{}, in);</span> <span class="line" id="L915">}</span> <span class="line" id="L916"></span> <span class="line" id="L917"><span class="tok-kw">const</span> HuffTest = <span class="tok-kw">struct</span> {</span> <span class="line" id="L918"> tokens: []<span class="tok-kw">const</span> token.Token,</span> <span class="line" id="L919"> input: []<span class="tok-kw">const</span> <span class="tok-type">u8</span> = <span class="tok-str">""</span>, <span class="tok-comment">// File name of input data matching the tokens.</span> </span> <span class="line" id="L920"> want: []<span class="tok-kw">const</span> <span class="tok-type">u8</span> = <span class="tok-str">""</span>, <span class="tok-comment">// File name of data with the expected output with input available.</span> </span> <span class="line" id="L921"> want_no_input: []<span class="tok-kw">const</span> <span class="tok-type">u8</span> = <span class="tok-str">""</span>, <span class="tok-comment">// File name of the expected output when no input is available.</span> </span> <span class="line" id="L922">};</span> <span class="line" id="L923"></span> <span class="line" id="L924"><span class="tok-kw">const</span> ml = <span class="tok-number">0x7fc00000</span>; <span class="tok-comment">// Maximum length token. Used to reduce the size of writeBlockTests</span> </span> <span class="line" id="L925"></span> <span class="line" id="L926"><span class="tok-kw">const</span> writeBlockTests = &[_]HuffTest{</span> <span class="line" id="L927"> HuffTest{</span> <span class="line" id="L928"> .input = <span class="tok-str">"huffman-null-max.input"</span>,</span> <span class="line" id="L929"> .want = <span class="tok-str">"huffman-null-max.{s}.expect"</span>,</span> <span class="line" id="L930"> .want_no_input = <span class="tok-str">"huffman-null-max.{s}.expect-noinput"</span>,</span> <span class="line" id="L931"> .tokens = &[_]token.Token{</span> <span class="line" id="L932"> <span class="tok-number">0x0</span>, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L933"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L934"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L935"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L936"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L937"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L938"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L939"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L940"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L941"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L942"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L943"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L944"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, <span class="tok-number">0x0</span>, <span class="tok-number">0x0</span>,</span> <span class="line" id="L945"> },</span> <span class="line" id="L946"> },</span> <span class="line" id="L947"> HuffTest{</span> <span class="line" id="L948"> .input = <span class="tok-str">"huffman-pi.input"</span>,</span> <span class="line" id="L949"> .want = <span class="tok-str">"huffman-pi.{s}.expect"</span>,</span> <span class="line" id="L950"> .want_no_input = <span class="tok-str">"huffman-pi.{s}.expect-noinput"</span>,</span> <span class="line" id="L951"> .tokens = &[_]token.Token{</span> <span class="line" id="L952"> <span class="tok-number">0x33</span>, <span class="tok-number">0x2e</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x39</span>,</span> <span class="line" id="L953"> <span class="tok-number">0x32</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x39</span>,</span> <span class="line" id="L954"> <span class="tok-number">0x37</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x34</span>,</span> <span class="line" id="L955"> <span class="tok-number">0x36</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x38</span>,</span> <span class="line" id="L956"> <span class="tok-number">0x33</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x32</span>,</span> <span class="line" id="L957"> <span class="tok-number">0x38</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x31</span>,</span> <span class="line" id="L958"> <span class="tok-number">0x36</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x37</span>,</span> <span class="line" id="L959"> <span class="tok-number">0x35</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x30</span>,</span> <span class="line" id="L960"> <span class="tok-number">0x39</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x35</span>,</span> <span class="line" id="L961"> <span class="tok-number">0x39</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x31</span>,</span> <span class="line" id="L962"> <span class="tok-number">0x36</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x36</span>,</span> <span class="line" id="L963"> <span class="tok-number">0x32</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x36</span>,</span> <span class="line" id="L964"> <span class="tok-number">0x32</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x32</span>,</span> <span class="line" id="L965"> <span class="tok-number">0x35</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x37</span>,</span> <span class="line" id="L966"> <span class="tok-number">0x30</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x31</span>,</span> <span class="line" id="L967"> <span class="tok-number">0x34</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x31</span>,</span> <span class="line" id="L968"> <span class="tok-number">0x33</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x36</span>,</span> <span class="line" id="L969"> <span class="tok-number">0x36</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x38</span>,</span> <span class="line" id="L970"> <span class="tok-number">0x34</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x35</span>,</span> <span class="line" id="L971"> <span class="tok-number">0x30</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x31</span>,</span> <span class="line" id="L972"> <span class="tok-number">0x37</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x34</span>,</span> <span class="line" id="L973"> <span class="tok-number">0x30</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x38</span>,</span> <span class="line" id="L974"> <span class="tok-number">0x31</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x4040007e</span>, <span class="tok-number">0x34</span>,</span> <span class="line" id="L975"> <span class="tok-number">0x31</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x39</span>,</span> <span class="line" id="L976"> <span class="tok-number">0x33</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x30</span>,</span> <span class="line" id="L977"> <span class="tok-number">0x35</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x34</span>,</span> <span class="line" id="L978"> <span class="tok-number">0x36</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x39</span>,</span> <span class="line" id="L979"> <span class="tok-number">0x35</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x38</span>,</span> <span class="line" id="L980"> <span class="tok-number">0x31</span>, <span class="tok-number">0x40400012</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x30</span>,</span> <span class="line" id="L981"> <span class="tok-number">0x39</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x39</span>,</span> <span class="line" id="L982"> <span class="tok-number">0x33</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x40400047</span>, <span class="tok-number">0x37</span>,</span> <span class="line" id="L983"> <span class="tok-number">0x35</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x33</span>,</span> <span class="line" id="L984"> <span class="tok-number">0x37</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x31</span>,</span> <span class="line" id="L985"> <span class="tok-number">0x36</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x30</span>,</span> <span class="line" id="L986"> <span class="tok-number">0x31</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x4040001a</span>,</span> <span class="line" id="L987"> <span class="tok-number">0x35</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x34</span>,</span> <span class="line" id="L988"> <span class="tok-number">0x36</span>, <span class="tok-number">0x404000b2</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x35</span>,</span> <span class="line" id="L989"> <span class="tok-number">0x34</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x40400032</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x33</span>,</span> <span class="line" id="L990"> <span class="tok-number">0x33</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x32</span>,</span> <span class="line" id="L991"> <span class="tok-number">0x36</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x34</span>,</span> <span class="line" id="L992"> <span class="tok-number">0x31</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x34</span>,</span> <span class="line" id="L993"> <span class="tok-number">0x35</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x36</span>,</span> <span class="line" id="L994"> <span class="tok-number">0x30</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x38</span>,</span> <span class="line" id="L995"> <span class="tok-number">0x38</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x31</span>,</span> <span class="line" id="L996"> <span class="tok-number">0x35</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x39</span>,</span> <span class="line" id="L997"> <span class="tok-number">0x36</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x35</span>,</span> <span class="line" id="L998"> <span class="tok-number">0x34</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x35</span>,</span> <span class="line" id="L999"> <span class="tok-number">0x33</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x38</span>,</span> <span class="line" id="L1000"> <span class="tok-number">0x39</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x36</span>,</span> <span class="line" id="L1001"> <span class="tok-number">0x30</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x30</span>,</span> <span class="line" id="L1002"> <span class="tok-number">0x35</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x38</span>,</span> <span class="line" id="L1003"> <span class="tok-number">0x32</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x32</span>,</span> <span class="line" id="L1004"> <span class="tok-number">0x31</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x36</span>,</span> <span class="line" id="L1005"> <span class="tok-number">0x39</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x35</span>,</span> <span class="line" id="L1006"> <span class="tok-number">0x31</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x33</span>,</span> <span class="line" id="L1007"> <span class="tok-number">0x33</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x30</span>,</span> <span class="line" id="L1008"> <span class="tok-number">0x33</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x35</span>,</span> <span class="line" id="L1009"> <span class="tok-number">0x39</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x39</span>,</span> <span class="line" id="L1010"> <span class="tok-number">0x32</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x37</span>,</span> <span class="line" id="L1011"> <span class="tok-number">0x404000e9</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x40400009</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x31</span>,</span> <span class="line" id="L1012"> <span class="tok-number">0x30</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x34</span>,</span> <span class="line" id="L1013"> <span class="tok-number">0x38</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x4040010e</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x39</span>,</span> <span class="line" id="L1014"> <span class="tok-number">0x39</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x35</span>,</span> <span class="line" id="L1015"> <span class="tok-number">0x36</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x38</span>,</span> <span class="line" id="L1016"> <span class="tok-number">0x35</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x34</span>,</span> <span class="line" id="L1017"> <span class="tok-number">0x38</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x39</span>,</span> <span class="line" id="L1018"> <span class="tok-number">0x33</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x31</span>,</span> <span class="line" id="L1019"> <span class="tok-number">0x31</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x39</span>,</span> <span class="line" id="L1020"> <span class="tok-number">0x38</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x33</span>,</span> <span class="line" id="L1021"> <span class="tok-number">0x36</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x35</span>,</span> <span class="line" id="L1022"> <span class="tok-number">0x36</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x36</span>,</span> <span class="line" id="L1023"> <span class="tok-number">0x30</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x39</span>,</span> <span class="line" id="L1024"> <span class="tok-number">0x34</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x32</span>,</span> <span class="line" id="L1025"> <span class="tok-number">0x34</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x30</span>,</span> <span class="line" id="L1026"> <span class="tok-number">0x37</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x38</span>,</span> <span class="line" id="L1027"> <span class="tok-number">0x40800099</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x30</span>,</span> <span class="line" id="L1028"> <span class="tok-number">0x35</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x31</span>,</span> <span class="line" id="L1029"> <span class="tok-number">0x37</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x37</span>,</span> <span class="line" id="L1030"> <span class="tok-number">0x36</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x40800232</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x38</span>,</span> <span class="line" id="L1031"> <span class="tok-number">0x31</span>, <span class="tok-number">0x40400006</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x30</span>,</span> <span class="line" id="L1032"> <span class="tok-number">0x404001e7</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x38</span>,</span> <span class="line" id="L1033"> <span class="tok-number">0x31</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x32</span>,</span> <span class="line" id="L1034"> <span class="tok-number">0x36</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x32</span>,</span> <span class="line" id="L1035"> <span class="tok-number">0x37</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x31</span>,</span> <span class="line" id="L1036"> <span class="tok-number">0x33</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x37</span>,</span> <span class="line" id="L1037"> <span class="tok-number">0x38</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x40400129</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x33</span>,</span> <span class="line" id="L1038"> <span class="tok-number">0x37</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x31</span>,</span> <span class="line" id="L1039"> <span class="tok-number">0x34</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x39</span>,</span> <span class="line" id="L1040"> <span class="tok-number">0x30</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x35</span>,</span> <span class="line" id="L1041"> <span class="tok-number">0x33</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x36</span>,</span> <span class="line" id="L1042"> <span class="tok-number">0x35</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x33</span>,</span> <span class="line" id="L1043"> <span class="tok-number">0x37</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x39</span>,</span> <span class="line" id="L1044"> <span class="tok-number">0x404000ca</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x40400153</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x33</span>,</span> <span class="line" id="L1045"> <span class="tok-number">0x35</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x404001c9</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x31</span>,</span> <span class="line" id="L1046"> <span class="tok-number">0x31</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x32</span>,</span> <span class="line" id="L1047"> <span class="tok-number">0x31</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x34</span>,</span> <span class="line" id="L1048"> <span class="tok-number">0x30</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x31</span>,</span> <span class="line" id="L1049"> <span class="tok-number">0x35</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x32</span>,</span> <span class="line" id="L1050"> <span class="tok-number">0x39</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x40400074</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x39</span>,</span> <span class="line" id="L1051"> <span class="tok-number">0x39</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x37</span>,</span> <span class="line" id="L1052"> <span class="tok-number">0x30</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x34</span>,</span> <span class="line" id="L1053"> <span class="tok-number">0x39</span>, <span class="tok-number">0x40800000</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x39</span>,</span> <span class="line" id="L1054"> <span class="tok-number">0x37</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x404002da</span>,</span> <span class="line" id="L1055"> <span class="tok-number">0x39</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x32</span>,</span> <span class="line" id="L1056"> <span class="tok-number">0x38</span>, <span class="tok-number">0x4040018a</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x35</span>,</span> <span class="line" id="L1057"> <span class="tok-number">0x40400301</span>, <span class="tok-number">0x404002e8</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x34</span>,</span> <span class="line" id="L1058"> <span class="tok-number">0x36</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x32</span>,</span> <span class="line" id="L1059"> <span class="tok-number">0x36</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x33</span>,</span> <span class="line" id="L1060"> <span class="tok-number">0x30</span>, <span class="tok-number">0x404002e3</span>, <span class="tok-number">0x40400267</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x33</span>,</span> <span class="line" id="L1061"> <span class="tok-number">0x35</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x31</span>,</span> <span class="line" id="L1062"> <span class="tok-number">0x31</span>, <span class="tok-number">0x40400212</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x30</span>,</span> <span class="line" id="L1063"> <span class="tok-number">0x30</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x33</span>,</span> <span class="line" id="L1064"> <span class="tok-number">0x38</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x36</span>,</span> <span class="line" id="L1065"> <span class="tok-number">0x35</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x32</span>,</span> <span class="line" id="L1066"> <span class="tok-number">0x30</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x32</span>,</span> <span class="line" id="L1067"> <span class="tok-number">0x30</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x40400140</span>, <span class="tok-number">0x4040012b</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x37</span>,</span> <span class="line" id="L1068"> <span class="tok-number">0x33</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x4080032e</span>, <span class="tok-number">0x39</span>,</span> <span class="line" id="L1069"> <span class="tok-number">0x30</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x35</span>,</span> <span class="line" id="L1070"> <span class="tok-number">0x34</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x31</span>,</span> <span class="line" id="L1071"> <span class="tok-number">0x35</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x40400355</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x38</span>,</span> <span class="line" id="L1072"> <span class="tok-number">0x32</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x37</span>,</span> <span class="line" id="L1073"> <span class="tok-number">0x35</span>, <span class="tok-number">0x4080037f</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x4040013a</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x40400148</span>, <span class="tok-number">0x38</span>,</span> <span class="line" id="L1074"> <span class="tok-number">0x30</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x4040018a</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x36</span>,</span> <span class="line" id="L1075"> <span class="tok-number">0x38</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x30</span>,</span> <span class="line" id="L1076"> <span class="tok-number">0x30</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x37</span>,</span> <span class="line" id="L1077"> <span class="tok-number">0x36</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x35</span>,</span> <span class="line" id="L1078"> <span class="tok-number">0x39</span>, <span class="tok-number">0x40400237</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x40800124</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x33</span>,</span> <span class="line" id="L1079"> <span class="tok-number">0x38</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x37</span>,</span> <span class="line" id="L1080"> <span class="tok-number">0x32</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x34</span>,</span> <span class="line" id="L1081"> <span class="tok-number">0x38</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x37</span>,</span> <span class="line" id="L1082"> <span class="tok-number">0x4040009a</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x33</span>,</span> <span class="line" id="L1083"> <span class="tok-number">0x40400220</span>, <span class="tok-number">0x4080015c</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x30</span>,</span> <span class="line" id="L1084"> <span class="tok-number">0x31</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x35</span>,</span> <span class="line" id="L1085"> <span class="tok-number">0x33</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x40400171</span>,</span> <span class="line" id="L1086"> <span class="tok-number">0x40400075</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x39</span>,</span> <span class="line" id="L1087"> <span class="tok-number">0x39</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x40400254</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x39</span>,</span> <span class="line" id="L1088"> <span class="tok-number">0x37</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x404000de</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x34</span>,</span> <span class="line" id="L1089"> <span class="tok-number">0x37</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x31</span>,</span> <span class="line" id="L1090"> <span class="tok-number">0x35</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x37</span>,</span> <span class="line" id="L1091"> <span class="tok-number">0x32</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x31</span>,</span> <span class="line" id="L1092"> <span class="tok-number">0x35</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x4040013f</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x32</span>,</span> <span class="line" id="L1093"> <span class="tok-number">0x39</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x36</span>,</span> <span class="line" id="L1094"> <span class="tok-number">0x38</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x38</span>,</span> <span class="line" id="L1095"> <span class="tok-number">0x40400337</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x39</span>,</span> <span class="line" id="L1096"> <span class="tok-number">0x4040010d</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x37</span>,</span> <span class="line" id="L1097"> <span class="tok-number">0x34</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x33</span>,</span> <span class="line" id="L1098"> <span class="tok-number">0x31</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x36</span>,</span> <span class="line" id="L1099"> <span class="tok-number">0x30</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x4040026b</span>, <span class="tok-number">0x31</span>,</span> <span class="line" id="L1100"> <span class="tok-number">0x36</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x30</span>,</span> <span class="line" id="L1101"> <span class="tok-number">0x30</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x40400335</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x31</span>,</span> <span class="line" id="L1102"> <span class="tok-number">0x32</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x31</span>,</span> <span class="line" id="L1103"> <span class="tok-number">0x36</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x37</span>,</span> <span class="line" id="L1104"> <span class="tok-number">0x30</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x30</span>,</span> <span class="line" id="L1105"> <span class="tok-number">0x34</span>, <span class="tok-number">0x40400172</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x32</span>,</span> <span class="line" id="L1106"> <span class="tok-number">0x39</span>, <span class="tok-number">0x4080041e</span>, <span class="tok-number">0x404000ef</span>, <span class="tok-number">0x4040028b</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x33</span>,</span> <span class="line" id="L1107"> <span class="tok-number">0x37</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x404004a8</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x35</span>,</span> <span class="line" id="L1108"> <span class="tok-number">0x33</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x40800209</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x4040002e</span>,</span> <span class="line" id="L1109"> <span class="tok-number">0x34</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x404001d1</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x404004b5</span>,</span> <span class="line" id="L1110"> <span class="tok-number">0x4040038d</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x404003a8</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x40c0031f</span>, <span class="tok-number">0x33</span>,</span> <span class="line" id="L1111"> <span class="tok-number">0x33</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x30</span>,</span> <span class="line" id="L1112"> <span class="tok-number">0x32</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x35</span>,</span> <span class="line" id="L1113"> <span class="tok-number">0x32</span>, <span class="tok-number">0x40400062</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x32</span>,</span> <span class="line" id="L1114"> <span class="tok-number">0x30</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x40400411</span>, <span class="tok-number">0x30</span>,</span> <span class="line" id="L1115"> <span class="tok-number">0x35</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x40400477</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x40400498</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x31</span>,</span> <span class="line" id="L1116"> <span class="tok-number">0x31</span>, <span class="tok-number">0x40400209</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x30</span>,</span> <span class="line" id="L1117"> <span class="tok-number">0x30</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x36</span>,</span> <span class="line" id="L1118"> <span class="tok-number">0x34</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x39</span>,</span> <span class="line" id="L1119"> <span class="tok-number">0x36</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x33</span>,</span> <span class="line" id="L1120"> <span class="tok-number">0x4040043e</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x4040044b</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x32</span>,</span> <span class="line" id="L1121"> <span class="tok-number">0x36</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x40c002c5</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x404001d6</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x4040053d</span>,</span> <span class="line" id="L1122"> <span class="tok-number">0x4040041d</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x404001ad</span>,</span> <span class="line" id="L1123"> <span class="tok-number">0x31</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x4040002a</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x4040019e</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x35</span>,</span> <span class="line" id="L1124"> <span class="tok-number">0x30</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x31</span>,</span> <span class="line" id="L1125"> <span class="tok-number">0x38</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x35</span>,</span> <span class="line" id="L1126"> <span class="tok-number">0x35</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x40400135</span>,</span> <span class="line" id="L1127"> <span class="tok-number">0x35</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x35</span>,</span> <span class="line" id="L1128"> <span class="tok-number">0x38</span>, <span class="tok-number">0x404001c5</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x40400051</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x404001ec</span>,</span> <span class="line" id="L1129"> <span class="tok-number">0x37</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x40400159</span>,</span> <span class="line" id="L1130"> <span class="tok-number">0x33</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x4040010a</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x31</span>,</span> <span class="line" id="L1131"> <span class="tok-number">0x36</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x38</span>,</span> <span class="line" id="L1132"> <span class="tok-number">0x37</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x4040011b</span>, <span class="tok-number">0x30</span>,</span> <span class="line" id="L1133"> <span class="tok-number">0x32</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x4040022e</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x34</span>,</span> <span class="line" id="L1134"> <span class="tok-number">0x39</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x40400418</span>,</span> <span class="line" id="L1135"> <span class="tok-number">0x34</span>, <span class="tok-number">0x4040011b</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x36</span>,</span> <span class="line" id="L1136"> <span class="tok-number">0x33</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x40400450</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x35</span>,</span> <span class="line" id="L1137"> <span class="tok-number">0x404002e4</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x35</span>,</span> <span class="line" id="L1138"> <span class="tok-number">0x31</span>, <span class="tok-number">0x404003da</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x34</span>,</span> <span class="line" id="L1139"> <span class="tok-number">0x36</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x39</span>,</span> <span class="line" id="L1140"> <span class="tok-number">0x37</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x40800453</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x30</span>,</span> <span class="line" id="L1141"> <span class="tok-number">0x30</span>, <span class="tok-number">0x404005fd</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x404004df</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x404003e9</span>,</span> <span class="line" id="L1142"> <span class="tok-number">0x34</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x4040041e</span>, <span class="tok-number">0x40400297</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x31</span>,</span> <span class="line" id="L1143"> <span class="tok-number">0x34</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x30</span>,</span> <span class="line" id="L1144"> <span class="tok-number">0x31</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x40400643</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x35</span>,</span> <span class="line" id="L1145"> <span class="tok-number">0x36</span>, <span class="tok-number">0x404004af</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x36</span>,</span> <span class="line" id="L1146"> <span class="tok-number">0x31</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x32</span>,</span> <span class="line" id="L1147"> <span class="tok-number">0x35</span>, <span class="tok-number">0x40400504</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x4040005b</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x38</span>,</span> <span class="line" id="L1148"> <span class="tok-number">0x4040047b</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x404005e7</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x32</span>,</span> <span class="line" id="L1149"> <span class="tok-number">0x33</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x34</span>,</span> <span class="line" id="L1150"> <span class="tok-number">0x31</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x35</span>,</span> <span class="line" id="L1151"> <span class="tok-number">0x34</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x40400242</span>,</span> <span class="line" id="L1152"> <span class="tok-number">0x32</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x33</span>,</span> <span class="line" id="L1153"> <span class="tok-number">0x35</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x35</span>,</span> <span class="line" id="L1154"> <span class="tok-number">0x36</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x31</span>,</span> <span class="line" id="L1155"> <span class="tok-number">0x39</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x34</span>,</span> <span class="line" id="L1156"> <span class="tok-number">0x32</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x4040023e</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x404000ba</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x38</span>,</span> <span class="line" id="L1157"> <span class="tok-number">0x38</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x39</span>,</span> <span class="line" id="L1158"> <span class="tok-number">0x30</span>, <span class="tok-number">0x40400055</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x40800106</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x404003e7</span>,</span> <span class="line" id="L1159"> <span class="tok-number">0x38</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x404006dc</span>,</span> <span class="line" id="L1160"> <span class="tok-number">0x31</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x35</span>,</span> <span class="line" id="L1161"> <span class="tok-number">0x37</span>, <span class="tok-number">0x40400073</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x408002fc</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x37</span>,</span> <span class="line" id="L1162"> <span class="tok-number">0x36</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x404002bd</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x30</span>,</span> <span class="line" id="L1163"> <span class="tok-number">0x39</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x40400638</span>, <span class="tok-number">0x33</span>,</span> <span class="line" id="L1164"> <span class="tok-number">0x404006a5</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x36</span>,</span> <span class="line" id="L1165"> <span class="tok-number">0x34</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x35</span>,</span> <span class="line" id="L1166"> <span class="tok-number">0x32</span>, <span class="tok-number">0x4040057b</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x40400297</span>,</span> <span class="line" id="L1167"> <span class="tok-number">0x40400474</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x408006b3</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x36</span>,</span> <span class="line" id="L1168"> <span class="tok-number">0x39</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x404001e5</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x39</span>,</span> <span class="line" id="L1169"> <span class="tok-number">0x36</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x40400099</span>,</span> <span class="line" id="L1170"> <span class="tok-number">0x4040039c</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x404001be</span>, <span class="tok-number">0x34</span>,</span> <span class="line" id="L1171"> <span class="tok-number">0x40800154</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x4040058b</span>, <span class="tok-number">0x34</span>,</span> <span class="line" id="L1172"> <span class="tok-number">0x35</span>, <span class="tok-number">0x404002bc</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x4040042c</span>, <span class="tok-number">0x36</span>,</span> <span class="line" id="L1173"> <span class="tok-number">0x40400510</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x40400638</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x39</span>,</span> <span class="line" id="L1174"> <span class="tok-number">0x31</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x40400171</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x36</span>,</span> <span class="line" id="L1175"> <span class="tok-number">0x34</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x33</span>,</span> <span class="line" id="L1176"> <span class="tok-number">0x39</span>, <span class="tok-number">0x40400101</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x40400748</span>, <span class="tok-number">0x38</span>,</span> <span class="line" id="L1177"> <span class="tok-number">0x33</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x39</span>,</span> <span class="line" id="L1178"> <span class="tok-number">0x35</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x404006a7</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x38</span>,</span> <span class="line" id="L1179"> <span class="tok-number">0x404001de</span>, <span class="tok-number">0x40400328</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x4040002d</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x30</span>,</span> <span class="line" id="L1180"> <span class="tok-number">0x37</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x4040008e</span>, <span class="tok-number">0x36</span>,</span> <span class="line" id="L1181"> <span class="tok-number">0x38</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x4040012f</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x35</span>,</span> <span class="line" id="L1182"> <span class="tok-number">0x37</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x40400468</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x404002c8</span>,</span> <span class="line" id="L1183"> <span class="tok-number">0x32</span>, <span class="tok-number">0x4040061b</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x32</span>,</span> <span class="line" id="L1184"> <span class="tok-number">0x36</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x38</span>,</span> <span class="line" id="L1185"> <span class="tok-number">0x40400319</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x34</span>,</span> <span class="line" id="L1186"> <span class="tok-number">0x37</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x404004e8</span>,</span> <span class="line" id="L1187"> <span class="tok-number">0x30</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x34</span>,</span> <span class="line" id="L1188"> <span class="tok-number">0x34</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x4040027f</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x40400105</span>, <span class="tok-number">0x32</span>,</span> <span class="line" id="L1189"> <span class="tok-number">0x30</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x35</span>,</span> <span class="line" id="L1190"> <span class="tok-number">0x32</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x404003b5</span>, <span class="tok-number">0x39</span>,</span> <span class="line" id="L1191"> <span class="tok-number">0x36</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x34</span>,</span> <span class="line" id="L1192"> <span class="tok-number">0x32</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x39</span>,</span> <span class="line" id="L1193"> <span class="tok-number">0x30</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x40400282</span>, <span class="tok-number">0x37</span>,</span> <span class="line" id="L1194"> <span class="tok-number">0x32</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x34</span>,</span> <span class="line" id="L1195"> <span class="tok-number">0x36</span>, <span class="tok-number">0x40400419</span>, <span class="tok-number">0x4040007a</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x4040050e</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x40800565</span>,</span> <span class="line" id="L1196"> <span class="tok-number">0x38</span>, <span class="tok-number">0x40400559</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x4040057b</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x34</span>,</span> <span class="line" id="L1197"> <span class="tok-number">0x4040049d</span>, <span class="tok-number">0x4040023e</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x4040065a</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x36</span>,</span> <span class="line" id="L1198"> <span class="tok-number">0x38</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x4040008c</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x33</span>,</span> <span class="line" id="L1199"> <span class="tok-number">0x38</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x37</span>,</span> <span class="line" id="L1200"> <span class="tok-number">0x37</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x39</span>,</span> <span class="line" id="L1201"> <span class="tok-number">0x31</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x4040005a</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x35</span>,</span> <span class="line" id="L1202"> <span class="tok-number">0x39</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x34</span>,</span> <span class="line" id="L1203"> <span class="tok-number">0x33</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x404005b7</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x40400012</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x38</span>,</span> <span class="line" id="L1204"> <span class="tok-number">0x30</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x404002e7</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x33</span>,</span> <span class="line" id="L1205"> <span class="tok-number">0x4040081e</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x36</span>,</span> <span class="line" id="L1206"> <span class="tok-number">0x35</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x404006e8</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x404000f2</span>,</span> <span class="line" id="L1207"> <span class="tok-number">0x36</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x404004b6</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x38</span>,</span> <span class="line" id="L1208"> <span class="tok-number">0x30</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x38</span>,</span> <span class="line" id="L1209"> <span class="tok-number">0x38</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x4040013a</span>, <span class="tok-number">0x4040000b</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x33</span>,</span> <span class="line" id="L1210"> <span class="tok-number">0x4040030f</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x40400341</span>,</span> <span class="line" id="L1211"> <span class="tok-number">0x37</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x4040059b</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x39</span>,</span> <span class="line" id="L1212"> <span class="tok-number">0x39</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x32</span>,</span> <span class="line" id="L1213"> <span class="tok-number">0x39</span>, <span class="tok-number">0x40400472</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x31</span>,</span> <span class="line" id="L1214"> <span class="tok-number">0x40400277</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x4040005f</span>, <span class="tok-number">0x34</span>,</span> <span class="line" id="L1215"> <span class="tok-number">0x30</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x404008e6</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x37</span>,</span> <span class="line" id="L1216"> <span class="tok-number">0x32</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x40400158</span>, <span class="tok-number">0x40800203</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x31</span>,</span> <span class="line" id="L1217"> <span class="tok-number">0x35</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x40400205</span>, <span class="tok-number">0x404001fe</span>, <span class="tok-number">0x4040027a</span>, <span class="tok-number">0x40400298</span>, <span class="tok-number">0x33</span>,</span> <span class="line" id="L1218"> <span class="tok-number">0x39</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x37</span>,</span> <span class="line" id="L1219"> <span class="tok-number">0x40c00496</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x4040058a</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x404002ea</span>, <span class="tok-number">0x32</span>,</span> <span class="line" id="L1220"> <span class="tok-number">0x40400387</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x4040051b</span>,</span> <span class="line" id="L1221"> <span class="tok-number">0x32</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x35</span>,</span> <span class="line" id="L1222"> <span class="tok-number">0x36</span>, <span class="tok-number">0x404004c4</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x40800253</span>,</span> <span class="line" id="L1223"> <span class="tok-number">0x40400811</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x404008ad</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x4040045e</span>, <span class="tok-number">0x39</span>,</span> <span class="line" id="L1224"> <span class="tok-number">0x33</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x4040075b</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x34</span>,</span> <span class="line" id="L1225"> <span class="tok-number">0x33</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x4040047b</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x30</span>,</span> <span class="line" id="L1226"> <span class="tok-number">0x37</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x404004bb</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x35</span>,</span> <span class="line" id="L1227"> <span class="tok-number">0x31</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x4040003e</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x34</span>,</span> <span class="line" id="L1228"> <span class="tok-number">0x30</span>, <span class="tok-number">0x404006a6</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x37</span>,</span> <span class="line" id="L1229"> <span class="tok-number">0x31</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x404008f0</span>, <span class="tok-number">0x36</span>,</span> <span class="line" id="L1230"> <span class="tok-number">0x39</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x37</span>,</span> <span class="line" id="L1231"> <span class="tok-number">0x32</span>, <span class="tok-number">0x4040025b</span>, <span class="tok-number">0x404001fe</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x4040053f</span>, <span class="tok-number">0x40400468</span>, <span class="tok-number">0x40400801</span>,</span> <span class="line" id="L1232"> <span class="tok-number">0x31</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x38</span>,</span> <span class="line" id="L1233"> <span class="tok-number">0x404008cc</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x4080079e</span>, <span class="tok-number">0x38</span>,</span> <span class="line" id="L1234"> <span class="tok-number">0x32</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x4040097a</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x4040025b</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x31</span>,</span> <span class="line" id="L1235"> <span class="tok-number">0x34</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x35</span>,</span> <span class="line" id="L1236"> <span class="tok-number">0x39</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x404006ef</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x40400134</span>,</span> <span class="line" id="L1237"> <span class="tok-number">0x38</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x4040005c</span>, <span class="tok-number">0x40400745</span>, <span class="tok-number">0x40400936</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x38</span>,</span> <span class="line" id="L1238"> <span class="tok-number">0x32</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x4040057e</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x32</span>,</span> <span class="line" id="L1239"> <span class="tok-number">0x36</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x40400611</span>, <span class="tok-number">0x35</span>,</span> <span class="line" id="L1240"> <span class="tok-number">0x40400249</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x37</span>,</span> <span class="line" id="L1241"> <span class="tok-number">0x37</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x4040081e</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x39</span>,</span> <span class="line" id="L1242"> <span class="tok-number">0x36</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x35</span>,</span> <span class="line" id="L1243"> <span class="tok-number">0x32</span>, <span class="tok-number">0x404005fd</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x36</span>,</span> <span class="line" id="L1244"> <span class="tok-number">0x34</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x404005de</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x34</span>,</span> <span class="line" id="L1245"> <span class="tok-number">0x37</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x4040003c</span>, <span class="tok-number">0x40400523</span>, <span class="tok-number">0x408008e6</span>, <span class="tok-number">0x34</span>,</span> <span class="line" id="L1246"> <span class="tok-number">0x31</span>, <span class="tok-number">0x4040052a</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x40400304</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x33</span>,</span> <span class="line" id="L1247"> <span class="tok-number">0x31</span>, <span class="tok-number">0x40800841</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x404008b2</span>,</span> <span class="line" id="L1248"> <span class="tok-number">0x35</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x36</span>,</span> <span class="line" id="L1249"> <span class="tok-number">0x32</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x404005ff</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x34</span>,</span> <span class="line" id="L1250"> <span class="tok-number">0x38</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x38</span>,</span> <span class="line" id="L1251"> <span class="tok-number">0x37</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x35</span>,</span> <span class="line" id="L1252"> <span class="tok-number">0x37</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x40400761</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x32</span>,</span> <span class="line" id="L1253"> <span class="tok-number">0x37</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x30</span>,</span> <span class="line" id="L1254"> <span class="tok-number">0x33</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x37</span>,</span> <span class="line" id="L1255"> <span class="tok-number">0x4040093f</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x30</span>,</span> <span class="line" id="L1256"> <span class="tok-number">0x36</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x40800299</span>, <span class="tok-number">0x40400345</span>, <span class="tok-number">0x38</span>,</span> <span class="line" id="L1257"> <span class="tok-number">0x34</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x408003d2</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x32</span>,</span> <span class="line" id="L1258"> <span class="tok-number">0x31</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x40400284</span>,</span> <span class="line" id="L1259"> <span class="tok-number">0x40400776</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x40400928</span>, <span class="tok-number">0x40400468</span>,</span> <span class="line" id="L1260"> <span class="tok-number">0x35</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x34</span>,</span> <span class="line" id="L1261"> <span class="tok-number">0x38</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x35</span>,</span> <span class="line" id="L1262"> <span class="tok-number">0x33</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x404008bc</span>, <span class="tok-number">0x4080059d</span>, <span class="tok-number">0x40800781</span>,</span> <span class="line" id="L1263"> <span class="tok-number">0x31</span>, <span class="tok-number">0x40400559</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x4040031b</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x404007ec</span>, <span class="tok-number">0x4040040c</span>,</span> <span class="line" id="L1264"> <span class="tok-number">0x36</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x408007dc</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x40400971</span>, <span class="tok-number">0x4080034e</span>, <span class="tok-number">0x408003f5</span>,</span> <span class="line" id="L1265"> <span class="tok-number">0x38</span>, <span class="tok-number">0x4080052d</span>, <span class="tok-number">0x40800887</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x40400187</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x31</span>,</span> <span class="line" id="L1266"> <span class="tok-number">0x404008ce</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x35</span>,</span> <span class="line" id="L1267"> <span class="tok-number">0x31</span>, <span class="tok-number">0x4040062b</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x40c001a9</span>,</span> <span class="line" id="L1268"> <span class="tok-number">0x39</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x34</span>,</span> <span class="line" id="L1269"> <span class="tok-number">0x39</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x36</span>,</span> <span class="line" id="L1270"> <span class="tok-number">0x31</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x404001ec</span>, <span class="tok-number">0x404006bc</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x35</span>,</span> <span class="line" id="L1271"> <span class="tok-number">0x40400926</span>, <span class="tok-number">0x40400469</span>, <span class="tok-number">0x4040011b</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x38</span>,</span> <span class="line" id="L1272"> <span class="tok-number">0x40400a25</span>, <span class="tok-number">0x4040016f</span>, <span class="tok-number">0x40400384</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x4040045a</span>, <span class="tok-number">0x35</span>,</span> <span class="line" id="L1273"> <span class="tok-number">0x4040084c</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x37</span>,</span> <span class="line" id="L1274"> <span class="tok-number">0x37</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x404008c5</span>, <span class="tok-number">0x404000f8</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x37</span>,</span> <span class="line" id="L1275"> <span class="tok-number">0x39</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x404005d7</span>,</span> <span class="line" id="L1276"> <span class="tok-number">0x32</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x404007df</span>,</span> <span class="line" id="L1277"> <span class="tok-number">0x36</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x404006d6</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x4080067e</span>, <span class="tok-number">0x36</span>,</span> <span class="line" id="L1278"> <span class="tok-number">0x404006e6</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x40400024</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x39</span>,</span> <span class="line" id="L1279"> <span class="tok-number">0x32</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x40400ab3</span>,</span> <span class="line" id="L1280"> <span class="tok-number">0x408003e4</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x404004d2</span>,</span> <span class="line" id="L1281"> <span class="tok-number">0x38</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x40400599</span>, <span class="tok-number">0x36</span>,</span> <span class="line" id="L1282"> <span class="tok-number">0x36</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x40400194</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x33</span>,</span> <span class="line" id="L1283"> <span class="tok-number">0x34</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x40400087</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x4040076b</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x36</span>,</span> <span class="line" id="L1284"> <span class="tok-number">0x33</span>, <span class="tok-number">0x40400956</span>, <span class="tok-number">0x404007e4</span>, <span class="tok-number">0x4040042b</span>, <span class="tok-number">0x40400174</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x37</span>,</span> <span class="line" id="L1285"> <span class="tok-number">0x39</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x36</span>,</span> <span class="line" id="L1286"> <span class="tok-number">0x40400140</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x40400523</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x38</span>,</span> <span class="line" id="L1287"> <span class="tok-number">0x37</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x40400711</span>, <span class="tok-number">0x35</span>,</span> <span class="line" id="L1288"> <span class="tok-number">0x37</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x40400a18</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x404008b3</span>,</span> <span class="line" id="L1289"> <span class="tok-number">0x31</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x4040078c</span>, <span class="tok-number">0x37</span>,</span> <span class="line" id="L1290"> <span class="tok-number">0x30</span>, <span class="tok-number">0x40400234</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x40400be7</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x32</span>,</span> <span class="line" id="L1291"> <span class="tok-number">0x40400c74</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x404003c3</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x40400b2a</span>, <span class="tok-number">0x40400112</span>,</span> <span class="line" id="L1292"> <span class="tok-number">0x37</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x404003b0</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x30</span>,</span> <span class="line" id="L1293"> <span class="tok-number">0x40800bf2</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x40400bc2</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x40400341</span>, <span class="tok-number">0x40400795</span>,</span> <span class="line" id="L1294"> <span class="tok-number">0x40400aaf</span>, <span class="tok-number">0x40400c62</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x40400960</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x35</span>,</span> <span class="line" id="L1295"> <span class="tok-number">0x31</span>, <span class="tok-number">0x4040057b</span>, <span class="tok-number">0x40400944</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x404001b2</span>, <span class="tok-number">0x38</span>,</span> <span class="line" id="L1296"> <span class="tok-number">0x32</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x40400b66</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x40400278</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x32</span>,</span> <span class="line" id="L1297"> <span class="tok-number">0x31</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x38</span>,</span> <span class="line" id="L1298"> <span class="tok-number">0x34</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x4080087b</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x36</span>,</span> <span class="line" id="L1299"> <span class="tok-number">0x34</span>, <span class="tok-number">0x408006e8</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x40800b58</span>, <span class="tok-number">0x404008db</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x32</span>,</span> <span class="line" id="L1300"> <span class="tok-number">0x32</span>, <span class="tok-number">0x40400321</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x404008a4</span>, <span class="tok-number">0x40400141</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x31</span>,</span> <span class="line" id="L1301"> <span class="tok-number">0x30</span>, <span class="tok-number">0x404000bc</span>, <span class="tok-number">0x40400c5b</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x30</span>,</span> <span class="line" id="L1302"> <span class="tok-number">0x31</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x40400231</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x40400914</span>,</span> <span class="line" id="L1303"> <span class="tok-number">0x38</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x40400373</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x40400589</span>, <span class="tok-number">0x30</span>,</span> <span class="line" id="L1304"> <span class="tok-number">0x39</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x35</span>,</span> <span class="line" id="L1305"> <span class="tok-number">0x37</span>, <span class="tok-number">0x4040064b</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x40400069</span>,</span> <span class="line" id="L1306"> <span class="tok-number">0x35</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x4040077a</span>, <span class="tok-number">0x40400d5a</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x34</span>,</span> <span class="line" id="L1307"> <span class="tok-number">0x34</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x40400202</span>, <span class="tok-number">0x30</span>,</span> <span class="line" id="L1308"> <span class="tok-number">0x33</span>, <span class="tok-number">0x4040019c</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x40400c81</span>,</span> <span class="line" id="L1309"> <span class="tok-number">0x40400009</span>, <span class="tok-number">0x40400026</span>, <span class="tok-number">0x40c00602</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x404005d9</span>,</span> <span class="line" id="L1310"> <span class="tok-number">0x40800883</span>, <span class="tok-number">0x4040092a</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x40800c42</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x31</span>,</span> <span class="line" id="L1311"> <span class="tok-number">0x37</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x40400605</span>, <span class="tok-number">0x4040006d</span>,</span> <span class="line" id="L1312"> <span class="tok-number">0x31</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x38</span>,</span> <span class="line" id="L1313"> <span class="tok-number">0x38</span>, <span class="tok-number">0x404003b9</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x35</span>,</span> <span class="line" id="L1314"> <span class="tok-number">0x39</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x404001cf</span>,</span> <span class="line" id="L1315"> <span class="tok-number">0x404009ba</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x4040016c</span>, <span class="tok-number">0x4040043e</span>, <span class="tok-number">0x404009c3</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x40800e05</span>,</span> <span class="line" id="L1316"> <span class="tok-number">0x33</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x40400107</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x40400305</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x404001ca</span>,</span> <span class="line" id="L1317"> <span class="tok-number">0x39</span>, <span class="tok-number">0x4040041b</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x4040087d</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x40400cb8</span>,</span> <span class="line" id="L1318"> <span class="tok-number">0x37</span>, <span class="tok-number">0x4040064b</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x404000e5</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x38</span>,</span> <span class="line" id="L1319"> <span class="tok-number">0x31</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x40400539</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x39</span>,</span> <span class="line" id="L1320"> <span class="tok-number">0x34</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x40400bc9</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x30</span>,</span> <span class="line" id="L1321"> },</span> <span class="line" id="L1322"> },</span> <span class="line" id="L1323"> HuffTest{</span> <span class="line" id="L1324"> .input = <span class="tok-str">"huffman-rand-1k.input"</span>,</span> <span class="line" id="L1325"> .want = <span class="tok-str">"huffman-rand-1k.{s}.expect"</span>,</span> <span class="line" id="L1326"> .want_no_input = <span class="tok-str">"huffman-rand-1k.{s}.expect-noinput"</span>,</span> <span class="line" id="L1327"> .tokens = &[_]token.Token{</span> <span class="line" id="L1328"> <span class="tok-number">0xf8</span>, <span class="tok-number">0x8b</span>, <span class="tok-number">0x96</span>, <span class="tok-number">0x76</span>, <span class="tok-number">0x48</span>, <span class="tok-number">0xd</span>, <span class="tok-number">0x85</span>, <span class="tok-number">0x94</span>, <span class="tok-number">0x25</span>, <span class="tok-number">0x80</span>, <span class="tok-number">0xaf</span>, <span class="tok-number">0xc2</span>, <span class="tok-number">0xfe</span>, <span class="tok-number">0x8d</span>,</span> <span class="line" id="L1329"> <span class="tok-number">0xe8</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0xeb</span>, <span class="tok-number">0x17</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0xc9</span>, <span class="tok-number">0xb7</span>, <span class="tok-number">0xc5</span>, <span class="tok-number">0xde</span>, <span class="tok-number">0x6</span>, <span class="tok-number">0xea</span>, <span class="tok-number">0x7d</span>, <span class="tok-number">0x18</span>, <span class="tok-number">0x8b</span>,</span> <span class="line" id="L1330"> <span class="tok-number">0xe7</span>, <span class="tok-number">0x3e</span>, <span class="tok-number">0x7</span>, <span class="tok-number">0xda</span>, <span class="tok-number">0xdf</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0x6c</span>, <span class="tok-number">0x73</span>, <span class="tok-number">0xde</span>, <span class="tok-number">0xcc</span>, <span class="tok-number">0xe7</span>, <span class="tok-number">0x6d</span>, <span class="tok-number">0x8d</span>, <span class="tok-number">0x4</span>,</span> <span class="line" id="L1331"> <span class="tok-number">0x19</span>, <span class="tok-number">0x49</span>, <span class="tok-number">0x7f</span>, <span class="tok-number">0x47</span>, <span class="tok-number">0x1f</span>, <span class="tok-number">0x48</span>, <span class="tok-number">0x15</span>, <span class="tok-number">0xb0</span>, <span class="tok-number">0xe8</span>, <span class="tok-number">0x9e</span>, <span class="tok-number">0xf2</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x59</span>, <span class="tok-number">0xde</span>,</span> <span class="line" id="L1332"> <span class="tok-number">0x34</span>, <span class="tok-number">0xb4</span>, <span class="tok-number">0x5b</span>, <span class="tok-number">0xe5</span>, <span class="tok-number">0xe0</span>, <span class="tok-number">0x9</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0xc2</span>, <span class="tok-number">0x88</span>, <span class="tok-number">0x5b</span>, <span class="tok-number">0x7c</span>, <span class="tok-number">0x5d</span>, <span class="tok-number">0x14</span>,</span> <span class="line" id="L1333"> <span class="tok-number">0x13</span>, <span class="tok-number">0x6f</span>, <span class="tok-number">0x23</span>, <span class="tok-number">0xa9</span>, <span class="tok-number">0xd</span>, <span class="tok-number">0xbc</span>, <span class="tok-number">0x2d</span>, <span class="tok-number">0x23</span>, <span class="tok-number">0xbe</span>, <span class="tok-number">0xd9</span>, <span class="tok-number">0xed</span>, <span class="tok-number">0x75</span>, <span class="tok-number">0x4</span>, <span class="tok-number">0x6c</span>,</span> <span class="line" id="L1334"> <span class="tok-number">0x99</span>, <span class="tok-number">0xdf</span>, <span class="tok-number">0xfd</span>, <span class="tok-number">0x70</span>, <span class="tok-number">0x66</span>, <span class="tok-number">0xe6</span>, <span class="tok-number">0xee</span>, <span class="tok-number">0xd9</span>, <span class="tok-number">0xb1</span>, <span class="tok-number">0x9e</span>, <span class="tok-number">0x6e</span>, <span class="tok-number">0x83</span>, <span class="tok-number">0x59</span>, <span class="tok-number">0xd5</span>,</span> <span class="line" id="L1335"> <span class="tok-number">0xd4</span>, <span class="tok-number">0x80</span>, <span class="tok-number">0x59</span>, <span class="tok-number">0x98</span>, <span class="tok-number">0x77</span>, <span class="tok-number">0x89</span>, <span class="tok-number">0x43</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0xc9</span>, <span class="tok-number">0xaf</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x9a</span>, <span class="tok-number">0x20</span>,</span> <span class="line" id="L1336"> <span class="tok-number">0x1b</span>, <span class="tok-number">0x46</span>, <span class="tok-number">0x3d</span>, <span class="tok-number">0x67</span>, <span class="tok-number">0x6e</span>, <span class="tok-number">0xd7</span>, <span class="tok-number">0x72</span>, <span class="tok-number">0x9e</span>, <span class="tok-number">0x4e</span>, <span class="tok-number">0x21</span>, <span class="tok-number">0x4f</span>, <span class="tok-number">0xc6</span>, <span class="tok-number">0xe0</span>, <span class="tok-number">0xd4</span>,</span> <span class="line" id="L1337"> <span class="tok-number">0x7b</span>, <span class="tok-number">0x4</span>, <span class="tok-number">0x8d</span>, <span class="tok-number">0xa5</span>, <span class="tok-number">0x3</span>, <span class="tok-number">0xf6</span>, <span class="tok-number">0x5</span>, <span class="tok-number">0x9b</span>, <span class="tok-number">0x6b</span>, <span class="tok-number">0xdc</span>, <span class="tok-number">0x2a</span>, <span class="tok-number">0x93</span>, <span class="tok-number">0x77</span>, <span class="tok-number">0x28</span>,</span> <span class="line" id="L1338"> <span class="tok-number">0xfd</span>, <span class="tok-number">0xb4</span>, <span class="tok-number">0x62</span>, <span class="tok-number">0xda</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0xe7</span>, <span class="tok-number">0x1f</span>, <span class="tok-number">0xab</span>, <span class="tok-number">0x6b</span>, <span class="tok-number">0x51</span>, <span class="tok-number">0x43</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x2f</span>, <span class="tok-number">0xa0</span>,</span> <span class="line" id="L1339"> <span class="tok-number">0x92</span>, <span class="tok-number">0x1</span>, <span class="tok-number">0x6c</span>, <span class="tok-number">0x75</span>, <span class="tok-number">0x3e</span>, <span class="tok-number">0xf4</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0xfd</span>, <span class="tok-number">0x43</span>, <span class="tok-number">0x2e</span>, <span class="tok-number">0xf7</span>, <span class="tok-number">0xa4</span>, <span class="tok-number">0x75</span>, <span class="tok-number">0xda</span>,</span> <span class="line" id="L1340"> <span class="tok-number">0xea</span>, <span class="tok-number">0x9b</span>, <span class="tok-number">0xa</span>, <span class="tok-number">0x64</span>, <span class="tok-number">0xb</span>, <span class="tok-number">0xe0</span>, <span class="tok-number">0x23</span>, <span class="tok-number">0x29</span>, <span class="tok-number">0xbd</span>, <span class="tok-number">0xf7</span>, <span class="tok-number">0xe7</span>, <span class="tok-number">0x83</span>, <span class="tok-number">0x3c</span>, <span class="tok-number">0xfb</span>,</span> <span class="line" id="L1341"> <span class="tok-number">0xdf</span>, <span class="tok-number">0xb3</span>, <span class="tok-number">0xae</span>, <span class="tok-number">0x4f</span>, <span class="tok-number">0xa4</span>, <span class="tok-number">0x47</span>, <span class="tok-number">0x55</span>, <span class="tok-number">0x99</span>, <span class="tok-number">0xde</span>, <span class="tok-number">0x2f</span>, <span class="tok-number">0x96</span>, <span class="tok-number">0x6e</span>, <span class="tok-number">0x1c</span>, <span class="tok-number">0x43</span>,</span> <span class="line" id="L1342"> <span class="tok-number">0x4c</span>, <span class="tok-number">0x87</span>, <span class="tok-number">0xe2</span>, <span class="tok-number">0x7c</span>, <span class="tok-number">0xd9</span>, <span class="tok-number">0x5f</span>, <span class="tok-number">0x4c</span>, <span class="tok-number">0x7c</span>, <span class="tok-number">0xe8</span>, <span class="tok-number">0x90</span>, <span class="tok-number">0x3</span>, <span class="tok-number">0xdb</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x95</span>,</span> <span class="line" id="L1343"> <span class="tok-number">0xd6</span>, <span class="tok-number">0x22</span>, <span class="tok-number">0xc</span>, <span class="tok-number">0x47</span>, <span class="tok-number">0xb8</span>, <span class="tok-number">0x4d</span>, <span class="tok-number">0x6b</span>, <span class="tok-number">0xbd</span>, <span class="tok-number">0x24</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0xab</span>, <span class="tok-number">0x2c</span>, <span class="tok-number">0xd7</span>, <span class="tok-number">0xbe</span>,</span> <span class="line" id="L1344"> <span class="tok-number">0x6e</span>, <span class="tok-number">0x7a</span>, <span class="tok-number">0xd6</span>, <span class="tok-number">0x8</span>, <span class="tok-number">0xa3</span>, <span class="tok-number">0x98</span>, <span class="tok-number">0xd8</span>, <span class="tok-number">0xdd</span>, <span class="tok-number">0x15</span>, <span class="tok-number">0x6a</span>, <span class="tok-number">0xfa</span>, <span class="tok-number">0x93</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x1</span>,</span> <span class="line" id="L1345"> <span class="tok-number">0x25</span>, <span class="tok-number">0x1d</span>, <span class="tok-number">0xa2</span>, <span class="tok-number">0x74</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0x4b</span>, <span class="tok-number">0x6a</span>, <span class="tok-number">0x95</span>, <span class="tok-number">0xe8</span>, <span class="tok-number">0xe1</span>, <span class="tok-number">0x4e</span>, <span class="tok-number">0xe</span>, <span class="tok-number">0x76</span>, <span class="tok-number">0xb9</span>,</span> <span class="line" id="L1346"> <span class="tok-number">0x49</span>, <span class="tok-number">0xa9</span>, <span class="tok-number">0x5f</span>, <span class="tok-number">0xa0</span>, <span class="tok-number">0xa6</span>, <span class="tok-number">0x63</span>, <span class="tok-number">0x3c</span>, <span class="tok-number">0x7e</span>, <span class="tok-number">0x7e</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x13</span>, <span class="tok-number">0x4f</span>, <span class="tok-number">0xbb</span>, <span class="tok-number">0x66</span>,</span> <span class="line" id="L1347"> <span class="tok-number">0x92</span>, <span class="tok-number">0xb8</span>, <span class="tok-number">0x2e</span>, <span class="tok-number">0xa4</span>, <span class="tok-number">0xfa</span>, <span class="tok-number">0x48</span>, <span class="tok-number">0xcb</span>, <span class="tok-number">0xae</span>, <span class="tok-number">0xb9</span>, <span class="tok-number">0x3c</span>, <span class="tok-number">0xaf</span>, <span class="tok-number">0xd3</span>, <span class="tok-number">0x1f</span>, <span class="tok-number">0xe1</span>,</span> <span class="line" id="L1348"> <span class="tok-number">0xd5</span>, <span class="tok-number">0x8d</span>, <span class="tok-number">0x42</span>, <span class="tok-number">0x6d</span>, <span class="tok-number">0xf0</span>, <span class="tok-number">0xfc</span>, <span class="tok-number">0x8c</span>, <span class="tok-number">0xc</span>, <span class="tok-number">0x0</span>, <span class="tok-number">0xde</span>, <span class="tok-number">0x40</span>, <span class="tok-number">0xab</span>, <span class="tok-number">0x8b</span>, <span class="tok-number">0x47</span>,</span> <span class="line" id="L1349"> <span class="tok-number">0x97</span>, <span class="tok-number">0x4e</span>, <span class="tok-number">0xa8</span>, <span class="tok-number">0xcf</span>, <span class="tok-number">0x8e</span>, <span class="tok-number">0xdb</span>, <span class="tok-number">0xa6</span>, <span class="tok-number">0x8b</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x9</span>, <span class="tok-number">0x84</span>, <span class="tok-number">0x7a</span>, <span class="tok-number">0x66</span>, <span class="tok-number">0xe5</span>,</span> <span class="line" id="L1350"> <span class="tok-number">0x98</span>, <span class="tok-number">0x29</span>, <span class="tok-number">0x2</span>, <span class="tok-number">0x95</span>, <span class="tok-number">0xe6</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x60</span>, <span class="tok-number">0x3</span>, <span class="tok-number">0xe3</span>, <span class="tok-number">0x9a</span>, <span class="tok-number">0x1e</span>, <span class="tok-number">0x54</span>, <span class="tok-number">0xe8</span>,</span> <span class="line" id="L1351"> <span class="tok-number">0x63</span>, <span class="tok-number">0x80</span>, <span class="tok-number">0x48</span>, <span class="tok-number">0x9c</span>, <span class="tok-number">0xe7</span>, <span class="tok-number">0x63</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x6e</span>, <span class="tok-number">0xa0</span>, <span class="tok-number">0x65</span>, <span class="tok-number">0x83</span>, <span class="tok-number">0xfa</span>, <span class="tok-number">0xc6</span>, <span class="tok-number">0xba</span>,</span> <span class="line" id="L1352"> <span class="tok-number">0x7a</span>, <span class="tok-number">0x43</span>, <span class="tok-number">0x71</span>, <span class="tok-number">0x5</span>, <span class="tok-number">0xf5</span>, <span class="tok-number">0x68</span>, <span class="tok-number">0x69</span>, <span class="tok-number">0x85</span>, <span class="tok-number">0x9c</span>, <span class="tok-number">0xba</span>, <span class="tok-number">0x45</span>, <span class="tok-number">0xcd</span>, <span class="tok-number">0x6b</span>, <span class="tok-number">0xb</span>,</span> <span class="line" id="L1353"> <span class="tok-number">0x19</span>, <span class="tok-number">0xd1</span>, <span class="tok-number">0xbb</span>, <span class="tok-number">0x7f</span>, <span class="tok-number">0x70</span>, <span class="tok-number">0x85</span>, <span class="tok-number">0x92</span>, <span class="tok-number">0xd1</span>, <span class="tok-number">0xb4</span>, <span class="tok-number">0x64</span>, <span class="tok-number">0x82</span>, <span class="tok-number">0xb1</span>, <span class="tok-number">0xe4</span>, <span class="tok-number">0x62</span>,</span> <span class="line" id="L1354"> <span class="tok-number">0xc5</span>, <span class="tok-number">0x3c</span>, <span class="tok-number">0x46</span>, <span class="tok-number">0x1f</span>, <span class="tok-number">0x92</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x1c</span>, <span class="tok-number">0x4e</span>, <span class="tok-number">0x41</span>, <span class="tok-number">0x77</span>, <span class="tok-number">0xf7</span>, <span class="tok-number">0xe7</span>, <span class="tok-number">0x87</span>, <span class="tok-number">0xa2</span>,</span> <span class="line" id="L1355"> <span class="tok-number">0xf</span>, <span class="tok-number">0x6e</span>, <span class="tok-number">0xe8</span>, <span class="tok-number">0x92</span>, <span class="tok-number">0x3</span>, <span class="tok-number">0x6b</span>, <span class="tok-number">0xa</span>, <span class="tok-number">0xe7</span>, <span class="tok-number">0xa9</span>, <span class="tok-number">0x3b</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0xda</span>, <span class="tok-number">0x66</span>, <span class="tok-number">0x8a</span>,</span> <span class="line" id="L1356"> <span class="tok-number">0x29</span>, <span class="tok-number">0xda</span>, <span class="tok-number">0x79</span>, <span class="tok-number">0xe1</span>, <span class="tok-number">0x64</span>, <span class="tok-number">0x8d</span>, <span class="tok-number">0xe3</span>, <span class="tok-number">0x54</span>, <span class="tok-number">0xd4</span>, <span class="tok-number">0xf5</span>, <span class="tok-number">0xef</span>, <span class="tok-number">0x64</span>, <span class="tok-number">0x87</span>, <span class="tok-number">0x3b</span>,</span> <span class="line" id="L1357"> <span class="tok-number">0xf4</span>, <span class="tok-number">0xc2</span>, <span class="tok-number">0xf4</span>, <span class="tok-number">0x71</span>, <span class="tok-number">0x13</span>, <span class="tok-number">0xa9</span>, <span class="tok-number">0xe9</span>, <span class="tok-number">0xe0</span>, <span class="tok-number">0xa2</span>, <span class="tok-number">0x6</span>, <span class="tok-number">0x14</span>, <span class="tok-number">0xab</span>, <span class="tok-number">0x5d</span>, <span class="tok-number">0xa7</span>,</span> <span class="line" id="L1358"> <span class="tok-number">0x96</span>, <span class="tok-number">0x0</span>, <span class="tok-number">0xd6</span>, <span class="tok-number">0xc3</span>, <span class="tok-number">0xcc</span>, <span class="tok-number">0x57</span>, <span class="tok-number">0xed</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x6a</span>, <span class="tok-number">0x25</span>, <span class="tok-number">0xcd</span>, <span class="tok-number">0x76</span>, <span class="tok-number">0xea</span>, <span class="tok-number">0xba</span>,</span> <span class="line" id="L1359"> <span class="tok-number">0x3a</span>, <span class="tok-number">0xf2</span>, <span class="tok-number">0xa1</span>, <span class="tok-number">0x95</span>, <span class="tok-number">0x5d</span>, <span class="tok-number">0xe5</span>, <span class="tok-number">0x71</span>, <span class="tok-number">0xcf</span>, <span class="tok-number">0x9c</span>, <span class="tok-number">0x62</span>, <span class="tok-number">0x9e</span>, <span class="tok-number">0x6a</span>, <span class="tok-number">0xfa</span>, <span class="tok-number">0xd5</span>,</span> <span class="line" id="L1360"> <span class="tok-number">0x31</span>, <span class="tok-number">0xd1</span>, <span class="tok-number">0xa8</span>, <span class="tok-number">0x66</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0xaa</span>, <span class="tok-number">0x51</span>, <span class="tok-number">0x17</span>, <span class="tok-number">0x13</span>, <span class="tok-number">0x82</span>, <span class="tok-number">0x99</span>, <span class="tok-number">0xc8</span>, <span class="tok-number">0x14</span>,</span> <span class="line" id="L1361"> <span class="tok-number">0x60</span>, <span class="tok-number">0x9f</span>, <span class="tok-number">0x4d</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x6d</span>, <span class="tok-number">0xda</span>, <span class="tok-number">0x19</span>, <span class="tok-number">0x26</span>, <span class="tok-number">0x21</span>, <span class="tok-number">0xdc</span>, <span class="tok-number">0x7e</span>, <span class="tok-number">0x2e</span>, <span class="tok-number">0x25</span>, <span class="tok-number">0x67</span>,</span> <span class="line" id="L1362"> <span class="tok-number">0x72</span>, <span class="tok-number">0xca</span>, <span class="tok-number">0xf</span>, <span class="tok-number">0x92</span>, <span class="tok-number">0xcd</span>, <span class="tok-number">0xf6</span>, <span class="tok-number">0xd6</span>, <span class="tok-number">0xcb</span>, <span class="tok-number">0x97</span>, <span class="tok-number">0x8a</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x58</span>, <span class="tok-number">0x73</span>, <span class="tok-number">0x70</span>,</span> <span class="line" id="L1363"> <span class="tok-number">0x91</span>, <span class="tok-number">0x1d</span>, <span class="tok-number">0xbf</span>, <span class="tok-number">0x28</span>, <span class="tok-number">0x23</span>, <span class="tok-number">0xa3</span>, <span class="tok-number">0xc</span>, <span class="tok-number">0xf1</span>, <span class="tok-number">0x83</span>, <span class="tok-number">0xc3</span>, <span class="tok-number">0xc8</span>, <span class="tok-number">0x56</span>, <span class="tok-number">0x77</span>, <span class="tok-number">0x68</span>,</span> <span class="line" id="L1364"> <span class="tok-number">0xe3</span>, <span class="tok-number">0x82</span>, <span class="tok-number">0xba</span>, <span class="tok-number">0xb9</span>, <span class="tok-number">0x57</span>, <span class="tok-number">0x56</span>, <span class="tok-number">0x57</span>, <span class="tok-number">0x9c</span>, <span class="tok-number">0xc3</span>, <span class="tok-number">0xd6</span>, <span class="tok-number">0x14</span>, <span class="tok-number">0x5</span>, <span class="tok-number">0x3c</span>, <span class="tok-number">0xb1</span>,</span> <span class="line" id="L1365"> <span class="tok-number">0xaf</span>, <span class="tok-number">0x93</span>, <span class="tok-number">0xc8</span>, <span class="tok-number">0x8a</span>, <span class="tok-number">0x57</span>, <span class="tok-number">0x7f</span>, <span class="tok-number">0x53</span>, <span class="tok-number">0xfa</span>, <span class="tok-number">0x2f</span>, <span class="tok-number">0xaa</span>, <span class="tok-number">0x6e</span>, <span class="tok-number">0x66</span>, <span class="tok-number">0x83</span>, <span class="tok-number">0xfa</span>,</span> <span class="line" id="L1366"> <span class="tok-number">0x33</span>, <span class="tok-number">0xd1</span>, <span class="tok-number">0x21</span>, <span class="tok-number">0xab</span>, <span class="tok-number">0x1b</span>, <span class="tok-number">0x71</span>, <span class="tok-number">0xb4</span>, <span class="tok-number">0x7c</span>, <span class="tok-number">0xda</span>, <span class="tok-number">0xfd</span>, <span class="tok-number">0xfb</span>, <span class="tok-number">0x7f</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0xab</span>,</span> <span class="line" id="L1367"> <span class="tok-number">0x5e</span>, <span class="tok-number">0xd5</span>, <span class="tok-number">0xca</span>, <span class="tok-number">0xfd</span>, <span class="tok-number">0xdd</span>, <span class="tok-number">0xe0</span>, <span class="tok-number">0xee</span>, <span class="tok-number">0xda</span>, <span class="tok-number">0xba</span>, <span class="tok-number">0xa8</span>, <span class="tok-number">0x27</span>, <span class="tok-number">0x99</span>, <span class="tok-number">0x97</span>, <span class="tok-number">0x69</span>,</span> <span class="line" id="L1368"> <span class="tok-number">0xc1</span>, <span class="tok-number">0x3c</span>, <span class="tok-number">0x82</span>, <span class="tok-number">0x8c</span>, <span class="tok-number">0xa</span>, <span class="tok-number">0x5c</span>, <span class="tok-number">0x2d</span>, <span class="tok-number">0x5b</span>, <span class="tok-number">0x88</span>, <span class="tok-number">0x3e</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0x37</span>,</span> <span class="line" id="L1369"> <span class="tok-number">0x46</span>, <span class="tok-number">0x79</span>, <span class="tok-number">0xe1</span>, <span class="tok-number">0xaa</span>, <span class="tok-number">0x19</span>, <span class="tok-number">0xfb</span>, <span class="tok-number">0xaa</span>, <span class="tok-number">0xde</span>, <span class="tok-number">0x15</span>, <span class="tok-number">0x9</span>, <span class="tok-number">0xd</span>, <span class="tok-number">0x1a</span>, <span class="tok-number">0x57</span>, <span class="tok-number">0xff</span>,</span> <span class="line" id="L1370"> <span class="tok-number">0xb5</span>, <span class="tok-number">0xf</span>, <span class="tok-number">0xf3</span>, <span class="tok-number">0x2b</span>, <span class="tok-number">0x5a</span>, <span class="tok-number">0x6a</span>, <span class="tok-number">0x4d</span>, <span class="tok-number">0x19</span>, <span class="tok-number">0x77</span>, <span class="tok-number">0x71</span>, <span class="tok-number">0x45</span>, <span class="tok-number">0xdf</span>, <span class="tok-number">0x4f</span>, <span class="tok-number">0xb3</span>,</span> <span class="line" id="L1371"> <span class="tok-number">0xec</span>, <span class="tok-number">0xf1</span>, <span class="tok-number">0xeb</span>, <span class="tok-number">0x18</span>, <span class="tok-number">0x53</span>, <span class="tok-number">0x3e</span>, <span class="tok-number">0x3b</span>, <span class="tok-number">0x47</span>, <span class="tok-number">0x8</span>, <span class="tok-number">0x9a</span>, <span class="tok-number">0x73</span>, <span class="tok-number">0xa0</span>, <span class="tok-number">0x5c</span>, <span class="tok-number">0x8c</span>,</span> <span class="line" id="L1372"> <span class="tok-number">0x5f</span>, <span class="tok-number">0xeb</span>, <span class="tok-number">0xf</span>, <span class="tok-number">0x3a</span>, <span class="tok-number">0xc2</span>, <span class="tok-number">0x43</span>, <span class="tok-number">0x67</span>, <span class="tok-number">0xb4</span>, <span class="tok-number">0x66</span>, <span class="tok-number">0x67</span>, <span class="tok-number">0x80</span>, <span class="tok-number">0x58</span>, <span class="tok-number">0xe</span>, <span class="tok-number">0xc1</span>,</span> <span class="line" id="L1373"> <span class="tok-number">0xec</span>, <span class="tok-number">0x40</span>, <span class="tok-number">0xd4</span>, <span class="tok-number">0x22</span>, <span class="tok-number">0x94</span>, <span class="tok-number">0xca</span>, <span class="tok-number">0xf9</span>, <span class="tok-number">0xe8</span>, <span class="tok-number">0x92</span>, <span class="tok-number">0xe4</span>, <span class="tok-number">0x69</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0xbe</span>, <span class="tok-number">0x67</span>,</span> <span class="line" id="L1374"> <span class="tok-number">0x64</span>, <span class="tok-number">0xca</span>, <span class="tok-number">0x50</span>, <span class="tok-number">0xc7</span>, <span class="tok-number">0x6</span>, <span class="tok-number">0x67</span>, <span class="tok-number">0x42</span>, <span class="tok-number">0x6e</span>, <span class="tok-number">0xa3</span>, <span class="tok-number">0xf0</span>, <span class="tok-number">0xb7</span>, <span class="tok-number">0x6c</span>, <span class="tok-number">0xf2</span>, <span class="tok-number">0xe8</span>,</span> <span class="line" id="L1375"> <span class="tok-number">0x5f</span>, <span class="tok-number">0xb1</span>, <span class="tok-number">0xaf</span>, <span class="tok-number">0xe7</span>, <span class="tok-number">0xdb</span>, <span class="tok-number">0xbb</span>, <span class="tok-number">0x77</span>, <span class="tok-number">0xb5</span>, <span class="tok-number">0xf8</span>, <span class="tok-number">0xcb</span>, <span class="tok-number">0x8</span>, <span class="tok-number">0xc4</span>, <span class="tok-number">0x75</span>, <span class="tok-number">0x7e</span>,</span> <span class="line" id="L1376"> <span class="tok-number">0xc0</span>, <span class="tok-number">0xf9</span>, <span class="tok-number">0x1c</span>, <span class="tok-number">0x7f</span>, <span class="tok-number">0x3c</span>, <span class="tok-number">0x89</span>, <span class="tok-number">0x2f</span>, <span class="tok-number">0xd2</span>, <span class="tok-number">0x58</span>, <span class="tok-number">0x3a</span>, <span class="tok-number">0xe2</span>, <span class="tok-number">0xf8</span>, <span class="tok-number">0x91</span>, <span class="tok-number">0xb6</span>,</span> <span class="line" id="L1377"> <span class="tok-number">0x7b</span>, <span class="tok-number">0x24</span>, <span class="tok-number">0x27</span>, <span class="tok-number">0xe9</span>, <span class="tok-number">0xae</span>, <span class="tok-number">0x84</span>, <span class="tok-number">0x8b</span>, <span class="tok-number">0xde</span>, <span class="tok-number">0x74</span>, <span class="tok-number">0xac</span>, <span class="tok-number">0xfd</span>, <span class="tok-number">0xd9</span>, <span class="tok-number">0xb7</span>, <span class="tok-number">0x69</span>,</span> <span class="line" id="L1378"> <span class="tok-number">0x2a</span>, <span class="tok-number">0xec</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x6f</span>, <span class="tok-number">0xf0</span>, <span class="tok-number">0x92</span>, <span class="tok-number">0x84</span>, <span class="tok-number">0xf1</span>, <span class="tok-number">0x40</span>, <span class="tok-number">0xc</span>, <span class="tok-number">0x8a</span>, <span class="tok-number">0xbc</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x6e</span>,</span> <span class="line" id="L1379"> <span class="tok-number">0x2e</span>, <span class="tok-number">0x73</span>, <span class="tok-number">0xd4</span>, <span class="tok-number">0x6e</span>, <span class="tok-number">0x8a</span>, <span class="tok-number">0x74</span>, <span class="tok-number">0x2a</span>, <span class="tok-number">0xdc</span>, <span class="tok-number">0x60</span>, <span class="tok-number">0x1f</span>, <span class="tok-number">0xa3</span>, <span class="tok-number">0x7</span>, <span class="tok-number">0xde</span>, <span class="tok-number">0x75</span>,</span> <span class="line" id="L1380"> <span class="tok-number">0x8b</span>, <span class="tok-number">0x74</span>, <span class="tok-number">0xc8</span>, <span class="tok-number">0xfe</span>, <span class="tok-number">0x63</span>, <span class="tok-number">0x75</span>, <span class="tok-number">0xf6</span>, <span class="tok-number">0x3d</span>, <span class="tok-number">0x63</span>, <span class="tok-number">0xac</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x89</span>, <span class="tok-number">0xc3</span>, <span class="tok-number">0xf0</span>,</span> <span class="line" id="L1381"> <span class="tok-number">0xf8</span>, <span class="tok-number">0x2d</span>, <span class="tok-number">0x6b</span>, <span class="tok-number">0xb4</span>, <span class="tok-number">0x9e</span>, <span class="tok-number">0x74</span>, <span class="tok-number">0x8b</span>, <span class="tok-number">0x5c</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0xb4</span>, <span class="tok-number">0xca</span>, <span class="tok-number">0xa8</span>, <span class="tok-number">0xe4</span>, <span class="tok-number">0x99</span>,</span> <span class="line" id="L1382"> <span class="tok-number">0xb6</span>, <span class="tok-number">0x90</span>, <span class="tok-number">0xa1</span>, <span class="tok-number">0xef</span>, <span class="tok-number">0xf</span>, <span class="tok-number">0xd3</span>, <span class="tok-number">0x61</span>, <span class="tok-number">0xb2</span>, <span class="tok-number">0xc6</span>, <span class="tok-number">0x1a</span>, <span class="tok-number">0x94</span>, <span class="tok-number">0x7c</span>, <span class="tok-number">0x44</span>, <span class="tok-number">0x55</span>,</span> <span class="line" id="L1383"> <span class="tok-number">0xf4</span>, <span class="tok-number">0x45</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0x9e</span>, <span class="tok-number">0xa5</span>, <span class="tok-number">0x5a</span>, <span class="tok-number">0xc6</span>, <span class="tok-number">0xa0</span>, <span class="tok-number">0xe8</span>, <span class="tok-number">0x2a</span>, <span class="tok-number">0xc1</span>, <span class="tok-number">0x8d</span>, <span class="tok-number">0x6f</span>, <span class="tok-number">0x34</span>,</span> <span class="line" id="L1384"> <span class="tok-number">0x11</span>, <span class="tok-number">0xb9</span>, <span class="tok-number">0xbe</span>, <span class="tok-number">0x4e</span>, <span class="tok-number">0xd9</span>, <span class="tok-number">0x87</span>, <span class="tok-number">0x97</span>, <span class="tok-number">0x73</span>, <span class="tok-number">0xcf</span>, <span class="tok-number">0x3d</span>, <span class="tok-number">0x23</span>, <span class="tok-number">0xae</span>, <span class="tok-number">0xd5</span>, <span class="tok-number">0x1a</span>,</span> <span class="line" id="L1385"> <span class="tok-number">0x5e</span>, <span class="tok-number">0xae</span>, <span class="tok-number">0x5d</span>, <span class="tok-number">0x6a</span>, <span class="tok-number">0x3</span>, <span class="tok-number">0xf9</span>, <span class="tok-number">0x22</span>, <span class="tok-number">0xd</span>, <span class="tok-number">0x10</span>, <span class="tok-number">0xd9</span>, <span class="tok-number">0x47</span>, <span class="tok-number">0x69</span>, <span class="tok-number">0x15</span>, <span class="tok-number">0x3f</span>,</span> <span class="line" id="L1386"> <span class="tok-number">0xee</span>, <span class="tok-number">0x52</span>, <span class="tok-number">0xa3</span>, <span class="tok-number">0x8</span>, <span class="tok-number">0xd2</span>, <span class="tok-number">0x3c</span>, <span class="tok-number">0x51</span>, <span class="tok-number">0xf4</span>, <span class="tok-number">0xf8</span>, <span class="tok-number">0x9d</span>, <span class="tok-number">0xe4</span>, <span class="tok-number">0x98</span>, <span class="tok-number">0x89</span>, <span class="tok-number">0xc8</span>,</span> <span class="line" id="L1387"> <span class="tok-number">0x67</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0xd5</span>, <span class="tok-number">0x5e</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x78</span>, <span class="tok-number">0x27</span>, <span class="tok-number">0xe8</span>, <span class="tok-number">0x3c</span>, <span class="tok-number">0x80</span>, <span class="tok-number">0xae</span>, <span class="tok-number">0x79</span>, <span class="tok-number">0x71</span>, <span class="tok-number">0xd2</span>,</span> <span class="line" id="L1388"> <span class="tok-number">0x93</span>, <span class="tok-number">0xf4</span>, <span class="tok-number">0xaa</span>, <span class="tok-number">0x51</span>, <span class="tok-number">0x12</span>, <span class="tok-number">0x1c</span>, <span class="tok-number">0x4b</span>, <span class="tok-number">0x1b</span>, <span class="tok-number">0xe5</span>, <span class="tok-number">0x6e</span>, <span class="tok-number">0x15</span>, <span class="tok-number">0x6f</span>, <span class="tok-number">0xe4</span>, <span class="tok-number">0xbb</span>,</span> <span class="line" id="L1389"> <span class="tok-number">0x51</span>, <span class="tok-number">0x9b</span>, <span class="tok-number">0x45</span>, <span class="tok-number">0x9f</span>, <span class="tok-number">0xf9</span>, <span class="tok-number">0xc4</span>, <span class="tok-number">0x8c</span>, <span class="tok-number">0x2a</span>, <span class="tok-number">0xfb</span>, <span class="tok-number">0x1a</span>, <span class="tok-number">0xdf</span>, <span class="tok-number">0x55</span>, <span class="tok-number">0xd3</span>, <span class="tok-number">0x48</span>,</span> <span class="line" id="L1390"> <span class="tok-number">0x93</span>, <span class="tok-number">0x27</span>, <span class="tok-number">0x1</span>, <span class="tok-number">0x26</span>, <span class="tok-number">0xc2</span>, <span class="tok-number">0x6b</span>, <span class="tok-number">0x55</span>, <span class="tok-number">0x6d</span>, <span class="tok-number">0xa2</span>, <span class="tok-number">0xfb</span>, <span class="tok-number">0x84</span>, <span class="tok-number">0x8b</span>, <span class="tok-number">0xc9</span>, <span class="tok-number">0x9e</span>,</span> <span class="line" id="L1391"> <span class="tok-number">0x28</span>, <span class="tok-number">0xc2</span>, <span class="tok-number">0xef</span>, <span class="tok-number">0x1a</span>, <span class="tok-number">0x24</span>, <span class="tok-number">0xec</span>, <span class="tok-number">0x9b</span>, <span class="tok-number">0xae</span>, <span class="tok-number">0xbd</span>, <span class="tok-number">0x60</span>, <span class="tok-number">0xe9</span>, <span class="tok-number">0x15</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0xee</span>,</span> <span class="line" id="L1392"> <span class="tok-number">0x42</span>, <span class="tok-number">0xa4</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x5b</span>, <span class="tok-number">0xfa</span>, <span class="tok-number">0xf</span>, <span class="tok-number">0xb6</span>, <span class="tok-number">0xf7</span>, <span class="tok-number">0x1</span>, <span class="tok-number">0xa6</span>, <span class="tok-number">0x2</span>, <span class="tok-number">0x4c</span>, <span class="tok-number">0xca</span>, <span class="tok-number">0x90</span>,</span> <span class="line" id="L1393"> <span class="tok-number">0x58</span>, <span class="tok-number">0x3a</span>, <span class="tok-number">0x96</span>, <span class="tok-number">0x41</span>, <span class="tok-number">0xe7</span>, <span class="tok-number">0xcb</span>, <span class="tok-number">0x9</span>, <span class="tok-number">0x8c</span>, <span class="tok-number">0xdb</span>, <span class="tok-number">0x85</span>, <span class="tok-number">0x4d</span>, <span class="tok-number">0xa8</span>, <span class="tok-number">0x89</span>, <span class="tok-number">0xf3</span>,</span> <span class="line" id="L1394"> <span class="tok-number">0xb5</span>, <span class="tok-number">0x8e</span>, <span class="tok-number">0xfd</span>, <span class="tok-number">0x75</span>, <span class="tok-number">0x5b</span>, <span class="tok-number">0x4f</span>, <span class="tok-number">0xed</span>, <span class="tok-number">0xde</span>, <span class="tok-number">0x3f</span>, <span class="tok-number">0xeb</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0xa3</span>, <span class="tok-number">0xbe</span>, <span class="tok-number">0xb0</span>,</span> <span class="line" id="L1395"> <span class="tok-number">0x73</span>, <span class="tok-number">0xfc</span>, <span class="tok-number">0xb8</span>, <span class="tok-number">0x54</span>, <span class="tok-number">0xf7</span>, <span class="tok-number">0x4c</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x67</span>, <span class="tok-number">0x2e</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0xa2</span>, <span class="tok-number">0x54</span>, <span class="tok-number">0x18</span>, <span class="tok-number">0xba</span>,</span> <span class="line" id="L1396"> <span class="tok-number">0x8</span>, <span class="tok-number">0xbf</span>, <span class="tok-number">0xf2</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0xd5</span>, <span class="tok-number">0xfe</span>, <span class="tok-number">0xa5</span>, <span class="tok-number">0x41</span>, <span class="tok-number">0xc6</span>, <span class="tok-number">0x66</span>, <span class="tok-number">0x66</span>, <span class="tok-number">0xba</span>, <span class="tok-number">0x81</span>, <span class="tok-number">0xef</span>,</span> <span class="line" id="L1397"> <span class="tok-number">0x67</span>, <span class="tok-number">0xe4</span>, <span class="tok-number">0xe6</span>, <span class="tok-number">0x3c</span>, <span class="tok-number">0xc</span>, <span class="tok-number">0xca</span>, <span class="tok-number">0xa4</span>, <span class="tok-number">0xa</span>, <span class="tok-number">0x79</span>, <span class="tok-number">0xb3</span>, <span class="tok-number">0x57</span>, <span class="tok-number">0x8b</span>, <span class="tok-number">0x8a</span>, <span class="tok-number">0x75</span>,</span> <span class="line" id="L1398"> <span class="tok-number">0x98</span>, <span class="tok-number">0x18</span>, <span class="tok-number">0x42</span>, <span class="tok-number">0x2f</span>, <span class="tok-number">0x29</span>, <span class="tok-number">0xa3</span>, <span class="tok-number">0x82</span>, <span class="tok-number">0xef</span>, <span class="tok-number">0x9f</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0x6</span>, <span class="tok-number">0x23</span>, <span class="tok-number">0xe1</span>, <span class="tok-number">0x75</span>,</span> <span class="line" id="L1399"> <span class="tok-number">0xfa</span>, <span class="tok-number">0x8</span>, <span class="tok-number">0xb1</span>, <span class="tok-number">0xde</span>, <span class="tok-number">0x17</span>, <span class="tok-number">0x4a</span>,</span> <span class="line" id="L1400"> },</span> <span class="line" id="L1401"> },</span> <span class="line" id="L1402"> HuffTest{</span> <span class="line" id="L1403"> .input = <span class="tok-str">"huffman-rand-limit.input"</span>,</span> <span class="line" id="L1404"> .want = <span class="tok-str">"huffman-rand-limit.{s}.expect"</span>,</span> <span class="line" id="L1405"> .want_no_input = <span class="tok-str">"huffman-rand-limit.{s}.expect-noinput"</span>,</span> <span class="line" id="L1406"> .tokens = &[_]token.Token{</span> <span class="line" id="L1407"> <span class="tok-number">0x61</span>, <span class="tok-number">0x51c00000</span>, <span class="tok-number">0xa</span>, <span class="tok-number">0xf8</span>, <span class="tok-number">0x8b</span>, <span class="tok-number">0x96</span>, <span class="tok-number">0x76</span>, <span class="tok-number">0x48</span>, <span class="tok-number">0xa</span>, <span class="tok-number">0x85</span>, <span class="tok-number">0x94</span>, <span class="tok-number">0x25</span>, <span class="tok-number">0x80</span>,</span> <span class="line" id="L1408"> <span class="tok-number">0xaf</span>, <span class="tok-number">0xc2</span>, <span class="tok-number">0xfe</span>, <span class="tok-number">0x8d</span>, <span class="tok-number">0xe8</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0xeb</span>, <span class="tok-number">0x17</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0xc9</span>, <span class="tok-number">0xb7</span>, <span class="tok-number">0xc5</span>, <span class="tok-number">0xde</span>,</span> <span class="line" id="L1409"> <span class="tok-number">0x6</span>, <span class="tok-number">0xea</span>, <span class="tok-number">0x7d</span>, <span class="tok-number">0x18</span>, <span class="tok-number">0x8b</span>, <span class="tok-number">0xe7</span>, <span class="tok-number">0x3e</span>, <span class="tok-number">0x7</span>, <span class="tok-number">0xda</span>, <span class="tok-number">0xdf</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0x6c</span>, <span class="tok-number">0x73</span>,</span> <span class="line" id="L1410"> <span class="tok-number">0xde</span>, <span class="tok-number">0xcc</span>, <span class="tok-number">0xe7</span>, <span class="tok-number">0x6d</span>, <span class="tok-number">0x8d</span>, <span class="tok-number">0x4</span>, <span class="tok-number">0x19</span>, <span class="tok-number">0x49</span>, <span class="tok-number">0x7f</span>, <span class="tok-number">0x47</span>, <span class="tok-number">0x1f</span>, <span class="tok-number">0x48</span>, <span class="tok-number">0x15</span>,</span> <span class="line" id="L1411"> <span class="tok-number">0xb0</span>, <span class="tok-number">0xe8</span>, <span class="tok-number">0x9e</span>, <span class="tok-number">0xf2</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x59</span>, <span class="tok-number">0xde</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0xb4</span>, <span class="tok-number">0x5b</span>, <span class="tok-number">0xe5</span>, <span class="tok-number">0xe0</span>, <span class="tok-number">0x9</span>,</span> <span class="line" id="L1412"> <span class="tok-number">0x11</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0xc2</span>, <span class="tok-number">0x88</span>, <span class="tok-number">0x5b</span>, <span class="tok-number">0x7c</span>, <span class="tok-number">0x5d</span>, <span class="tok-number">0x14</span>, <span class="tok-number">0x13</span>, <span class="tok-number">0x6f</span>, <span class="tok-number">0x23</span>, <span class="tok-number">0xa9</span>, <span class="tok-number">0xa</span>,</span> <span class="line" id="L1413"> <span class="tok-number">0xbc</span>, <span class="tok-number">0x2d</span>, <span class="tok-number">0x23</span>, <span class="tok-number">0xbe</span>, <span class="tok-number">0xd9</span>, <span class="tok-number">0xed</span>, <span class="tok-number">0x75</span>, <span class="tok-number">0x4</span>, <span class="tok-number">0x6c</span>, <span class="tok-number">0x99</span>, <span class="tok-number">0xdf</span>, <span class="tok-number">0xfd</span>, <span class="tok-number">0x70</span>,</span> <span class="line" id="L1414"> <span class="tok-number">0x66</span>, <span class="tok-number">0xe6</span>, <span class="tok-number">0xee</span>, <span class="tok-number">0xd9</span>, <span class="tok-number">0xb1</span>, <span class="tok-number">0x9e</span>, <span class="tok-number">0x6e</span>, <span class="tok-number">0x83</span>, <span class="tok-number">0x59</span>, <span class="tok-number">0xd5</span>, <span class="tok-number">0xd4</span>, <span class="tok-number">0x80</span>, <span class="tok-number">0x59</span>,</span> <span class="line" id="L1415"> <span class="tok-number">0x98</span>, <span class="tok-number">0x77</span>, <span class="tok-number">0x89</span>, <span class="tok-number">0x43</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0xc9</span>, <span class="tok-number">0xaf</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x9a</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x1b</span>, <span class="tok-number">0x46</span>,</span> <span class="line" id="L1416"> <span class="tok-number">0x3d</span>, <span class="tok-number">0x67</span>, <span class="tok-number">0x6e</span>, <span class="tok-number">0xd7</span>, <span class="tok-number">0x72</span>, <span class="tok-number">0x9e</span>, <span class="tok-number">0x4e</span>, <span class="tok-number">0x21</span>, <span class="tok-number">0x4f</span>, <span class="tok-number">0xc6</span>, <span class="tok-number">0xe0</span>, <span class="tok-number">0xd4</span>, <span class="tok-number">0x7b</span>,</span> <span class="line" id="L1417"> <span class="tok-number">0x4</span>, <span class="tok-number">0x8d</span>, <span class="tok-number">0xa5</span>, <span class="tok-number">0x3</span>, <span class="tok-number">0xf6</span>, <span class="tok-number">0x5</span>, <span class="tok-number">0x9b</span>, <span class="tok-number">0x6b</span>, <span class="tok-number">0xdc</span>, <span class="tok-number">0x2a</span>, <span class="tok-number">0x93</span>, <span class="tok-number">0x77</span>, <span class="tok-number">0x28</span>,</span> <span class="line" id="L1418"> <span class="tok-number">0xfd</span>, <span class="tok-number">0xb4</span>, <span class="tok-number">0x62</span>, <span class="tok-number">0xda</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0xe7</span>, <span class="tok-number">0x1f</span>, <span class="tok-number">0xab</span>, <span class="tok-number">0x6b</span>, <span class="tok-number">0x51</span>, <span class="tok-number">0x43</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x2f</span>,</span> <span class="line" id="L1419"> <span class="tok-number">0xa0</span>, <span class="tok-number">0x92</span>, <span class="tok-number">0x1</span>, <span class="tok-number">0x6c</span>, <span class="tok-number">0x75</span>, <span class="tok-number">0x3e</span>, <span class="tok-number">0xf4</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0xfd</span>, <span class="tok-number">0x43</span>, <span class="tok-number">0x2e</span>, <span class="tok-number">0xf7</span>, <span class="tok-number">0xa4</span>,</span> <span class="line" id="L1420"> <span class="tok-number">0x75</span>, <span class="tok-number">0xda</span>, <span class="tok-number">0xea</span>, <span class="tok-number">0x9b</span>, <span class="tok-number">0xa</span>,</span> <span class="line" id="L1421"> },</span> <span class="line" id="L1422"> },</span> <span class="line" id="L1423"> HuffTest{</span> <span class="line" id="L1424"> .input = <span class="tok-str">"huffman-shifts.input"</span>,</span> <span class="line" id="L1425"> .want = <span class="tok-str">"huffman-shifts.{s}.expect"</span>,</span> <span class="line" id="L1426"> .want_no_input = <span class="tok-str">"huffman-shifts.{s}.expect-noinput"</span>,</span> <span class="line" id="L1427"> .tokens = &[_]token.Token{</span> <span class="line" id="L1428"> <span class="tok-number">0x31</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x7fc00001</span>, <span class="tok-number">0x7fc00001</span>, <span class="tok-number">0x7fc00001</span>, <span class="tok-number">0x7fc00001</span>, <span class="tok-number">0x7fc00001</span>,</span> <span class="line" id="L1429"> <span class="tok-number">0x7fc00001</span>, <span class="tok-number">0x7fc00001</span>, <span class="tok-number">0x7fc00001</span>, <span class="tok-number">0x7fc00001</span>, <span class="tok-number">0x7fc00001</span>, <span class="tok-number">0x7fc00001</span>, <span class="tok-number">0x7fc00001</span>,</span> <span class="line" id="L1430"> <span class="tok-number">0x7fc00001</span>, <span class="tok-number">0x7fc00001</span>, <span class="tok-number">0x7fc00001</span>, <span class="tok-number">0x52400001</span>, <span class="tok-number">0xd</span>, <span class="tok-number">0xa</span>, <span class="tok-number">0x32</span>,</span> <span class="line" id="L1431"> <span class="tok-number">0x33</span>, <span class="tok-number">0x7fc00001</span>, <span class="tok-number">0x7fc00001</span>, <span class="tok-number">0x7fc00001</span>, <span class="tok-number">0x7fc00001</span>, <span class="tok-number">0x7fc00001</span>, <span class="tok-number">0x7fc00001</span>,</span> <span class="line" id="L1432"> <span class="tok-number">0x7fc00001</span>, <span class="tok-number">0x7fc00001</span>, <span class="tok-number">0x7fc00001</span>, <span class="tok-number">0x7f400001</span>,</span> <span class="line" id="L1433"> },</span> <span class="line" id="L1434"> },</span> <span class="line" id="L1435"> HuffTest{</span> <span class="line" id="L1436"> .input = <span class="tok-str">"huffman-text-shift.input"</span>,</span> <span class="line" id="L1437"> .want = <span class="tok-str">"huffman-text-shift.{s}.expect"</span>,</span> <span class="line" id="L1438"> .want_no_input = <span class="tok-str">"huffman-text-shift.{s}.expect-noinput"</span>,</span> <span class="line" id="L1439"> .tokens = &[_]token.Token{</span> <span class="line" id="L1440"> <span class="tok-number">0x2f</span>, <span class="tok-number">0x2f</span>, <span class="tok-number">0x43</span>, <span class="tok-number">0x6f</span>, <span class="tok-number">0x70</span>, <span class="tok-number">0x79</span>, <span class="tok-number">0x72</span>, <span class="tok-number">0x69</span>, <span class="tok-number">0x67</span>, <span class="tok-number">0x68</span>,</span> <span class="line" id="L1441"> <span class="tok-number">0x74</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x54</span>, <span class="tok-number">0x68</span>, <span class="tok-number">0x47</span>, <span class="tok-number">0x6f</span>, <span class="tok-number">0x41</span>,</span> <span class="line" id="L1442"> <span class="tok-number">0x75</span>, <span class="tok-number">0x74</span>, <span class="tok-number">0x68</span>, <span class="tok-number">0x6f</span>, <span class="tok-number">0x72</span>, <span class="tok-number">0x2e</span>, <span class="tok-number">0x41</span>, <span class="tok-number">0x6c</span>, <span class="tok-number">0x6c</span>, <span class="tok-number">0x40800016</span>,</span> <span class="line" id="L1443"> <span class="tok-number">0x72</span>, <span class="tok-number">0x72</span>, <span class="tok-number">0x76</span>, <span class="tok-number">0x64</span>, <span class="tok-number">0x2e</span>, <span class="tok-number">0xd</span>, <span class="tok-number">0xa</span>, <span class="tok-number">0x2f</span>, <span class="tok-number">0x2f</span>, <span class="tok-number">0x55</span>,</span> <span class="line" id="L1444"> <span class="tok-number">0x6f</span>, <span class="tok-number">0x66</span>, <span class="tok-number">0x74</span>, <span class="tok-number">0x68</span>, <span class="tok-number">0x69</span>, <span class="tok-number">0x6f</span>, <span class="tok-number">0x75</span>, <span class="tok-number">0x72</span>, <span class="tok-number">0x63</span>, <span class="tok-number">0x63</span>,</span> <span class="line" id="L1445"> <span class="tok-number">0x6f</span>, <span class="tok-number">0x64</span>, <span class="tok-number">0x69</span>, <span class="tok-number">0x67</span>, <span class="tok-number">0x6f</span>, <span class="tok-number">0x76</span>, <span class="tok-number">0x72</span>, <span class="tok-number">0x6e</span>, <span class="tok-number">0x64</span>, <span class="tok-number">0x62</span>,</span> <span class="line" id="L1446"> <span class="tok-number">0x79</span>, <span class="tok-number">0x42</span>, <span class="tok-number">0x53</span>, <span class="tok-number">0x44</span>, <span class="tok-number">0x2d</span>, <span class="tok-number">0x74</span>, <span class="tok-number">0x79</span>, <span class="tok-number">0x6c</span>, <span class="tok-number">0x40400020</span>, <span class="tok-number">0x6c</span>,</span> <span class="line" id="L1447"> <span class="tok-number">0x69</span>, <span class="tok-number">0x63</span>, <span class="tok-number">0x6e</span>, <span class="tok-number">0x74</span>, <span class="tok-number">0x68</span>, <span class="tok-number">0x74</span>, <span class="tok-number">0x63</span>, <span class="tok-number">0x6e</span>, <span class="tok-number">0x62</span>, <span class="tok-number">0x66</span>,</span> <span class="line" id="L1448"> <span class="tok-number">0x6f</span>, <span class="tok-number">0x75</span>, <span class="tok-number">0x6e</span>, <span class="tok-number">0x64</span>, <span class="tok-number">0x69</span>, <span class="tok-number">0x6e</span>, <span class="tok-number">0x74</span>, <span class="tok-number">0x68</span>, <span class="tok-number">0x4c</span>, <span class="tok-number">0x49</span>,</span> <span class="line" id="L1449"> <span class="tok-number">0x43</span>, <span class="tok-number">0x45</span>, <span class="tok-number">0x4e</span>, <span class="tok-number">0x53</span>, <span class="tok-number">0x45</span>, <span class="tok-number">0x66</span>, <span class="tok-number">0x69</span>, <span class="tok-number">0x6c</span>, <span class="tok-number">0x2e</span>, <span class="tok-number">0xd</span>,</span> <span class="line" id="L1450"> <span class="tok-number">0xa</span>, <span class="tok-number">0xd</span>, <span class="tok-number">0xa</span>, <span class="tok-number">0x70</span>, <span class="tok-number">0x63</span>, <span class="tok-number">0x6b</span>, <span class="tok-number">0x67</span>, <span class="tok-number">0x6d</span>, <span class="tok-number">0x69</span>, <span class="tok-number">0x6e</span>,</span> <span class="line" id="L1451"> <span class="tok-number">0x4040000a</span>, <span class="tok-number">0x69</span>, <span class="tok-number">0x6d</span>, <span class="tok-number">0x70</span>, <span class="tok-number">0x6f</span>, <span class="tok-number">0x72</span>, <span class="tok-number">0x74</span>, <span class="tok-number">0x22</span>, <span class="tok-number">0x6f</span>, <span class="tok-number">0x22</span>,</span> <span class="line" id="L1452"> <span class="tok-number">0x4040000c</span>, <span class="tok-number">0x66</span>, <span class="tok-number">0x75</span>, <span class="tok-number">0x6e</span>, <span class="tok-number">0x63</span>, <span class="tok-number">0x6d</span>, <span class="tok-number">0x69</span>, <span class="tok-number">0x6e</span>, <span class="tok-number">0x28</span>, <span class="tok-number">0x29</span>,</span> <span class="line" id="L1453"> <span class="tok-number">0x7b</span>, <span class="tok-number">0xd</span>, <span class="tok-number">0xa</span>, <span class="tok-number">0x9</span>, <span class="tok-number">0x76</span>, <span class="tok-number">0x72</span>, <span class="tok-number">0x62</span>, <span class="tok-number">0x3d</span>, <span class="tok-number">0x6d</span>, <span class="tok-number">0x6b</span>,</span> <span class="line" id="L1454"> <span class="tok-number">0x28</span>, <span class="tok-number">0x5b</span>, <span class="tok-number">0x5d</span>, <span class="tok-number">0x62</span>, <span class="tok-number">0x79</span>, <span class="tok-number">0x74</span>, <span class="tok-number">0x2c</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x35</span>,</span> <span class="line" id="L1455"> <span class="tok-number">0x33</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x29</span>, <span class="tok-number">0xd</span>, <span class="tok-number">0xa</span>, <span class="tok-number">0x9</span>, <span class="tok-number">0x66</span>, <span class="tok-number">0x2c</span>, <span class="tok-number">0x5f</span>, <span class="tok-number">0x3a</span>,</span> <span class="line" id="L1456"> <span class="tok-number">0x3d</span>, <span class="tok-number">0x6f</span>, <span class="tok-number">0x2e</span>, <span class="tok-number">0x43</span>, <span class="tok-number">0x72</span>, <span class="tok-number">0x74</span>, <span class="tok-number">0x28</span>, <span class="tok-number">0x22</span>, <span class="tok-number">0x68</span>, <span class="tok-number">0x75</span>,</span> <span class="line" id="L1457"> <span class="tok-number">0x66</span>, <span class="tok-number">0x66</span>, <span class="tok-number">0x6d</span>, <span class="tok-number">0x6e</span>, <span class="tok-number">0x2d</span>, <span class="tok-number">0x6e</span>, <span class="tok-number">0x75</span>, <span class="tok-number">0x6c</span>, <span class="tok-number">0x6c</span>, <span class="tok-number">0x2d</span>,</span> <span class="line" id="L1458"> <span class="tok-number">0x6d</span>, <span class="tok-number">0x78</span>, <span class="tok-number">0x2e</span>, <span class="tok-number">0x69</span>, <span class="tok-number">0x6e</span>, <span class="tok-number">0x22</span>, <span class="tok-number">0x40800021</span>, <span class="tok-number">0x2e</span>, <span class="tok-number">0x57</span>, <span class="tok-number">0x72</span>,</span> <span class="line" id="L1459"> <span class="tok-number">0x69</span>, <span class="tok-number">0x74</span>, <span class="tok-number">0x28</span>, <span class="tok-number">0x62</span>, <span class="tok-number">0x29</span>, <span class="tok-number">0xd</span>, <span class="tok-number">0xa</span>, <span class="tok-number">0x7d</span>, <span class="tok-number">0xd</span>, <span class="tok-number">0xa</span>,</span> <span class="line" id="L1460"> <span class="tok-number">0x41</span>, <span class="tok-number">0x42</span>, <span class="tok-number">0x43</span>, <span class="tok-number">0x44</span>, <span class="tok-number">0x45</span>, <span class="tok-number">0x46</span>, <span class="tok-number">0x47</span>, <span class="tok-number">0x48</span>, <span class="tok-number">0x49</span>, <span class="tok-number">0x4a</span>,</span> <span class="line" id="L1461"> <span class="tok-number">0x4b</span>, <span class="tok-number">0x4c</span>, <span class="tok-number">0x4d</span>, <span class="tok-number">0x4e</span>, <span class="tok-number">0x4f</span>, <span class="tok-number">0x50</span>, <span class="tok-number">0x51</span>, <span class="tok-number">0x52</span>, <span class="tok-number">0x53</span>, <span class="tok-number">0x54</span>,</span> <span class="line" id="L1462"> <span class="tok-number">0x55</span>, <span class="tok-number">0x56</span>, <span class="tok-number">0x58</span>, <span class="tok-number">0x78</span>, <span class="tok-number">0x79</span>, <span class="tok-number">0x7a</span>, <span class="tok-number">0x21</span>, <span class="tok-number">0x22</span>, <span class="tok-number">0x23</span>, <span class="tok-number">0xc2</span>,</span> <span class="line" id="L1463"> <span class="tok-number">0xa4</span>, <span class="tok-number">0x25</span>, <span class="tok-number">0x26</span>, <span class="tok-number">0x2f</span>, <span class="tok-number">0x3f</span>, <span class="tok-number">0x22</span>,</span> <span class="line" id="L1464"> },</span> <span class="line" id="L1465"> },</span> <span class="line" id="L1466"> HuffTest{</span> <span class="line" id="L1467"> .input = <span class="tok-str">"huffman-text.input"</span>,</span> <span class="line" id="L1468"> .want = <span class="tok-str">"huffman-text.{s}.expect"</span>,</span> <span class="line" id="L1469"> .want_no_input = <span class="tok-str">"huffman-text.{s}.expect-noinput"</span>,</span> <span class="line" id="L1470"> .tokens = &[_]token.Token{</span> <span class="line" id="L1471"> <span class="tok-number">0x2f</span>, <span class="tok-number">0x2f</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x7a</span>, <span class="tok-number">0x69</span>, <span class="tok-number">0x67</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x76</span>,</span> <span class="line" id="L1472"> <span class="tok-number">0x30</span>, <span class="tok-number">0x2e</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x2e</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x0a</span>, <span class="tok-number">0x2f</span>,</span> <span class="line" id="L1473"> <span class="tok-number">0x2f</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x63</span>, <span class="tok-number">0x72</span>, <span class="tok-number">0x65</span>, <span class="tok-number">0x61</span>, <span class="tok-number">0x74</span>, <span class="tok-number">0x65</span>,</span> <span class="line" id="L1474"> <span class="tok-number">0x20</span>, <span class="tok-number">0x61</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x66</span>, <span class="tok-number">0x69</span>, <span class="tok-number">0x6c</span>, <span class="tok-number">0x65</span>, <span class="tok-number">0x40400004</span>,</span> <span class="line" id="L1475"> <span class="tok-number">0x6c</span>, <span class="tok-number">0x65</span>, <span class="tok-number">0x64</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x77</span>, <span class="tok-number">0x69</span>, <span class="tok-number">0x74</span>, <span class="tok-number">0x68</span>,</span> <span class="line" id="L1476"> <span class="tok-number">0x20</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x78</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x0a</span>, <span class="tok-number">0x63</span>, <span class="tok-number">0x6f</span>,</span> <span class="line" id="L1477"> <span class="tok-number">0x6e</span>, <span class="tok-number">0x73</span>, <span class="tok-number">0x74</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x73</span>, <span class="tok-number">0x74</span>, <span class="tok-number">0x64</span>, <span class="tok-number">0x20</span>,</span> <span class="line" id="L1478"> <span class="tok-number">0x3d</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x40</span>, <span class="tok-number">0x69</span>, <span class="tok-number">0x6d</span>, <span class="tok-number">0x70</span>, <span class="tok-number">0x6f</span>, <span class="tok-number">0x72</span>,</span> <span class="line" id="L1479"> <span class="tok-number">0x74</span>, <span class="tok-number">0x28</span>, <span class="tok-number">0x22</span>, <span class="tok-number">0x73</span>, <span class="tok-number">0x74</span>, <span class="tok-number">0x64</span>, <span class="tok-number">0x22</span>, <span class="tok-number">0x29</span>,</span> <span class="line" id="L1480"> <span class="tok-number">0x3b</span>, <span class="tok-number">0x0a</span>, <span class="tok-number">0x0a</span>, <span class="tok-number">0x70</span>, <span class="tok-number">0x75</span>, <span class="tok-number">0x62</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x66</span>,</span> <span class="line" id="L1481"> <span class="tok-number">0x6e</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x6d</span>, <span class="tok-number">0x61</span>, <span class="tok-number">0x69</span>, <span class="tok-number">0x6e</span>, <span class="tok-number">0x28</span>, <span class="tok-number">0x29</span>,</span> <span class="line" id="L1482"> <span class="tok-number">0x20</span>, <span class="tok-number">0x21</span>, <span class="tok-number">0x76</span>, <span class="tok-number">0x6f</span>, <span class="tok-number">0x69</span>, <span class="tok-number">0x64</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x7b</span>,</span> <span class="line" id="L1483"> <span class="tok-number">0x0a</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x76</span>, <span class="tok-number">0x61</span>, <span class="tok-number">0x72</span>,</span> <span class="line" id="L1484"> <span class="tok-number">0x20</span>, <span class="tok-number">0x62</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x3d</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x5b</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x5d</span>,</span> <span class="line" id="L1485"> <span class="tok-number">0x75</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x7b</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x7d</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x2a</span>, <span class="tok-number">0x2a</span>,</span> <span class="line" id="L1486"> <span class="tok-number">0x20</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x3b</span>, <span class="tok-number">0x4080001e</span>,</span> <span class="line" id="L1487"> <span class="tok-number">0x40c00055</span>, <span class="tok-number">0x66</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x3d</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x74</span>, <span class="tok-number">0x72</span>, <span class="tok-number">0x79</span>,</span> <span class="line" id="L1488"> <span class="tok-number">0x4040005d</span>, <span class="tok-number">0x2e</span>, <span class="tok-number">0x66</span>, <span class="tok-number">0x73</span>, <span class="tok-number">0x2e</span>, <span class="tok-number">0x63</span>, <span class="tok-number">0x77</span>, <span class="tok-number">0x64</span>,</span> <span class="line" id="L1489"> <span class="tok-number">0x28</span>, <span class="tok-number">0x29</span>, <span class="tok-number">0x2e</span>, <span class="tok-number">0x40c0008f</span>, <span class="tok-number">0x46</span>, <span class="tok-number">0x69</span>, <span class="tok-number">0x6c</span>, <span class="tok-number">0x65</span>,</span> <span class="line" id="L1490"> <span class="tok-number">0x28</span>, <span class="tok-number">0x4080002a</span>, <span class="tok-number">0x40400000</span>, <span class="tok-number">0x22</span>, <span class="tok-number">0x68</span>, <span class="tok-number">0x75</span>, <span class="tok-number">0x66</span>, <span class="tok-number">0x66</span>,</span> <span class="line" id="L1491"> <span class="tok-number">0x6d</span>, <span class="tok-number">0x61</span>, <span class="tok-number">0x6e</span>, <span class="tok-number">0x2d</span>, <span class="tok-number">0x6e</span>, <span class="tok-number">0x75</span>, <span class="tok-number">0x6c</span>, <span class="tok-number">0x6c</span>,</span> <span class="line" id="L1492"> <span class="tok-number">0x2d</span>, <span class="tok-number">0x6d</span>, <span class="tok-number">0x61</span>, <span class="tok-number">0x78</span>, <span class="tok-number">0x2e</span>, <span class="tok-number">0x69</span>, <span class="tok-number">0x6e</span>, <span class="tok-number">0x22</span>,</span> <span class="line" id="L1493"> <span class="tok-number">0x2c</span>, <span class="tok-number">0x4180001e</span>, <span class="tok-number">0x2e</span>, <span class="tok-number">0x7b</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x2e</span>, <span class="tok-number">0x72</span>, <span class="tok-number">0x65</span>,</span> <span class="line" id="L1494"> <span class="tok-number">0x61</span>, <span class="tok-number">0x64</span>, <span class="tok-number">0x4080004e</span>, <span class="tok-number">0x75</span>, <span class="tok-number">0x65</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x7d</span>, <span class="tok-number">0x40c0001a</span>,</span> <span class="line" id="L1495"> <span class="tok-number">0x29</span>, <span class="tok-number">0x40c0006b</span>, <span class="tok-number">0x64</span>, <span class="tok-number">0x65</span>, <span class="tok-number">0x66</span>, <span class="tok-number">0x65</span>, <span class="tok-number">0x72</span>, <span class="tok-number">0x20</span>,</span> <span class="line" id="L1496"> <span class="tok-number">0x66</span>, <span class="tok-number">0x2e</span>, <span class="tok-number">0x63</span>, <span class="tok-number">0x6c</span>, <span class="tok-number">0x6f</span>, <span class="tok-number">0x73</span>, <span class="tok-number">0x65</span>, <span class="tok-number">0x28</span>,</span> <span class="line" id="L1497"> <span class="tok-number">0x404000b6</span>, <span class="tok-number">0x40400015</span>, <span class="tok-number">0x5f</span>, <span class="tok-number">0x4100007b</span>, <span class="tok-number">0x66</span>, <span class="tok-number">0x2e</span>, <span class="tok-number">0x77</span>, <span class="tok-number">0x72</span>,</span> <span class="line" id="L1498"> <span class="tok-number">0x69</span>, <span class="tok-number">0x74</span>, <span class="tok-number">0x65</span>, <span class="tok-number">0x41</span>, <span class="tok-number">0x6c</span>, <span class="tok-number">0x6c</span>, <span class="tok-number">0x28</span>, <span class="tok-number">0x62</span>,</span> <span class="line" id="L1499"> <span class="tok-number">0x5b</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x2e</span>, <span class="tok-number">0x2e</span>, <span class="tok-number">0x5d</span>, <span class="tok-number">0x29</span>, <span class="tok-number">0x3b</span>, <span class="tok-number">0x0a</span>,</span> <span class="line" id="L1500"> <span class="tok-number">0x7d</span>, <span class="tok-number">0x0a</span>,</span> <span class="line" id="L1501"> },</span> <span class="line" id="L1502"> },</span> <span class="line" id="L1503"> HuffTest{</span> <span class="line" id="L1504"> .input = <span class="tok-str">"huffman-zero.input"</span>,</span> <span class="line" id="L1505"> .want = <span class="tok-str">"huffman-zero.{s}.expect"</span>,</span> <span class="line" id="L1506"> .want_no_input = <span class="tok-str">"huffman-zero.{s}.expect-noinput"</span>,</span> <span class="line" id="L1507"> .tokens = &[_]token.Token{ <span class="tok-number">0x30</span>, ml, <span class="tok-number">0x4b800000</span> },</span> <span class="line" id="L1508"> },</span> <span class="line" id="L1509"> HuffTest{</span> <span class="line" id="L1510"> .input = <span class="tok-str">""</span>,</span> <span class="line" id="L1511"> .want = <span class="tok-str">""</span>,</span> <span class="line" id="L1512"> .want_no_input = <span class="tok-str">"null-long-match.{s}.expect-noinput"</span>,</span> <span class="line" id="L1513"> .tokens = &[_]token.Token{</span> <span class="line" id="L1514"> <span class="tok-number">0x0</span>, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L1515"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L1516"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L1517"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L1518"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L1519"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L1520"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L1521"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L1522"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L1523"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L1524"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L1525"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L1526"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L1527"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L1528"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L1529"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L1530"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L1531"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L1532"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L1533"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L1534"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L1535"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L1536"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L1537"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L1538"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L1539"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L1540"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L1541"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L1542"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L1543"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L1544"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L1545"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L1546"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L1547"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L1548"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L1549"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L1550"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L1551"> ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml,</span> <span class="line" id="L1552"> ml, ml, ml, <span class="tok-number">0x41400000</span>,</span> <span class="line" id="L1553"> },</span> <span class="line" id="L1554"> },</span> <span class="line" id="L1555">};</span> <span class="line" id="L1556"></span> <span class="line" id="L1557"><span class="tok-kw">const</span> TestType = <span class="tok-kw">enum</span> {</span> <span class="line" id="L1558"> write_block,</span> <span class="line" id="L1559"> write_dyn_block, <span class="tok-comment">// write dynamic block</span> </span> <span class="line" id="L1560"> write_huffman_block,</span> <span class="line" id="L1561"></span> <span class="line" id="L1562"> <span class="tok-kw">fn</span> <span class="tok-fn">to_s</span>(self: TestType) []<span class="tok-kw">const</span> <span class="tok-type">u8</span> {</span> <span class="line" id="L1563"> <span class="tok-kw">return</span> <span class="tok-kw">switch</span> (self) {</span> <span class="line" id="L1564"> .write_block => <span class="tok-str">"wb"</span>,</span> <span class="line" id="L1565"> .write_dyn_block => <span class="tok-str">"dyn"</span>,</span> <span class="line" id="L1566"> .write_huffman_block => <span class="tok-str">"huff"</span>,</span> <span class="line" id="L1567"> };</span> <span class="line" id="L1568"> }</span> <span class="line" id="L1569">};</span> <span class="line" id="L1570"></span> <span class="line" id="L1571"><span class="tok-kw">test</span> <span class="tok-str">"writeBlock"</span> {</span> <span class="line" id="L1572"> <span class="tok-comment">// tests if the writeBlock encoding has changed.</span> </span> <span class="line" id="L1573"></span> <span class="line" id="L1574"> <span class="tok-kw">const</span> ttype: TestType = .write_block;</span> <span class="line" id="L1575"> <span class="tok-kw">try</span> testBlock(writeBlockTests[<span class="tok-number">0</span>], ttype);</span> <span class="line" id="L1576"> <span class="tok-kw">try</span> testBlock(writeBlockTests[<span class="tok-number">1</span>], ttype);</span> <span class="line" id="L1577"> <span class="tok-kw">try</span> testBlock(writeBlockTests[<span class="tok-number">2</span>], ttype);</span> <span class="line" id="L1578"> <span class="tok-kw">try</span> testBlock(writeBlockTests[<span class="tok-number">3</span>], ttype);</span> <span class="line" id="L1579"> <span class="tok-kw">try</span> testBlock(writeBlockTests[<span class="tok-number">4</span>], ttype);</span> <span class="line" id="L1580"> <span class="tok-kw">try</span> testBlock(writeBlockTests[<span class="tok-number">5</span>], ttype);</span> <span class="line" id="L1581"> <span class="tok-kw">try</span> testBlock(writeBlockTests[<span class="tok-number">6</span>], ttype);</span> <span class="line" id="L1582"> <span class="tok-kw">try</span> testBlock(writeBlockTests[<span class="tok-number">7</span>], ttype);</span> <span class="line" id="L1583"> <span class="tok-kw">try</span> testBlock(writeBlockTests[<span class="tok-number">8</span>], ttype);</span> <span class="line" id="L1584">}</span> <span class="line" id="L1585"></span> <span class="line" id="L1586"><span class="tok-kw">test</span> <span class="tok-str">"writeBlockDynamic"</span> {</span> <span class="line" id="L1587"> <span class="tok-comment">// tests if the writeBlockDynamic encoding has changed.</span> </span> <span class="line" id="L1588"></span> <span class="line" id="L1589"> <span class="tok-kw">const</span> ttype: TestType = .write_dyn_block;</span> <span class="line" id="L1590"> <span class="tok-kw">try</span> testBlock(writeBlockTests[<span class="tok-number">0</span>], ttype);</span> <span class="line" id="L1591"> <span class="tok-kw">try</span> testBlock(writeBlockTests[<span class="tok-number">1</span>], ttype);</span> <span class="line" id="L1592"> <span class="tok-kw">try</span> testBlock(writeBlockTests[<span class="tok-number">2</span>], ttype);</span> <span class="line" id="L1593"> <span class="tok-kw">try</span> testBlock(writeBlockTests[<span class="tok-number">3</span>], ttype);</span> <span class="line" id="L1594"> <span class="tok-kw">try</span> testBlock(writeBlockTests[<span class="tok-number">4</span>], ttype);</span> <span class="line" id="L1595"> <span class="tok-kw">try</span> testBlock(writeBlockTests[<span class="tok-number">5</span>], ttype);</span> <span class="line" id="L1596"> <span class="tok-kw">try</span> testBlock(writeBlockTests[<span class="tok-number">6</span>], ttype);</span> <span class="line" id="L1597"> <span class="tok-kw">try</span> testBlock(writeBlockTests[<span class="tok-number">7</span>], ttype);</span> <span class="line" id="L1598"> <span class="tok-kw">try</span> testBlock(writeBlockTests[<span class="tok-number">8</span>], ttype);</span> <span class="line" id="L1599">}</span> <span class="line" id="L1600"></span> <span class="line" id="L1601"><span class="tok-comment">// testBlock tests a block against its references,</span> </span> <span class="line" id="L1602"><span class="tok-comment">// or regenerate the references, if "-update" flag is set.</span> </span> <span class="line" id="L1603"><span class="tok-kw">fn</span> <span class="tok-fn">testBlock</span>(<span class="tok-kw">comptime</span> ht: HuffTest, <span class="tok-kw">comptime</span> ttype: TestType) !<span class="tok-type">void</span> {</span> <span class="line" id="L1604"> <span class="tok-kw">if</span> (ht.input.len != <span class="tok-number">0</span> <span class="tok-kw">and</span> ht.want.len != <span class="tok-number">0</span>) {</span> <span class="line" id="L1605"> <span class="tok-kw">const</span> want_name = <span class="tok-kw">comptime</span> fmt.comptimePrint(ht.want, .{ttype.to_s()});</span> <span class="line" id="L1606"> <span class="tok-kw">const</span> input = <span class="tok-builtin">@embedFile</span>(<span class="tok-str">"testdata/"</span> ++ ht.input);</span> <span class="line" id="L1607"> <span class="tok-kw">const</span> want = <span class="tok-builtin">@embedFile</span>(<span class="tok-str">"testdata/"</span> ++ want_name);</span> <span class="line" id="L1608"></span> <span class="line" id="L1609"> <span class="tok-kw">var</span> buf = ArrayList(<span class="tok-type">u8</span>).init(testing.allocator);</span> <span class="line" id="L1610"> <span class="tok-kw">var</span> bw = <span class="tok-kw">try</span> huffmanBitWriter(testing.allocator, buf.writer());</span> <span class="line" id="L1611"> <span class="tok-kw">try</span> writeToType(ttype, &bw, ht.tokens, input);</span> <span class="line" id="L1612"></span> <span class="line" id="L1613"> <span class="tok-kw">var</span> got = buf.items;</span> <span class="line" id="L1614"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, want, got); <span class="tok-comment">// expect writeBlock to yield expected result</span> </span> <span class="line" id="L1615"></span> <span class="line" id="L1616"> <span class="tok-comment">// Test if the writer produces the same output after reset.</span> </span> <span class="line" id="L1617"> buf.deinit();</span> <span class="line" id="L1618"> buf = ArrayList(<span class="tok-type">u8</span>).init(testing.allocator);</span> <span class="line" id="L1619"> <span class="tok-kw">defer</span> buf.deinit();</span> <span class="line" id="L1620"></span> <span class="line" id="L1621"> bw.reset(buf.writer());</span> <span class="line" id="L1622"> <span class="tok-kw">defer</span> bw.deinit();</span> <span class="line" id="L1623"></span> <span class="line" id="L1624"> <span class="tok-kw">try</span> writeToType(ttype, &bw, ht.tokens, input);</span> <span class="line" id="L1625"> <span class="tok-kw">try</span> bw.flush();</span> <span class="line" id="L1626"> got = buf.items;</span> <span class="line" id="L1627"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, want, got); <span class="tok-comment">// expect writeBlock to yield expected result</span> </span> <span class="line" id="L1628"> <span class="tok-kw">try</span> testWriterEOF(.write_block, ht.tokens, input);</span> <span class="line" id="L1629"> }</span> <span class="line" id="L1630"></span> <span class="line" id="L1631"> <span class="tok-kw">const</span> want_name_no_input = <span class="tok-kw">comptime</span> fmt.comptimePrint(ht.want_no_input, .{ttype.to_s()});</span> <span class="line" id="L1632"> <span class="tok-kw">const</span> want_ni = <span class="tok-builtin">@embedFile</span>(<span class="tok-str">"testdata/"</span> ++ want_name_no_input);</span> <span class="line" id="L1633"></span> <span class="line" id="L1634"> <span class="tok-kw">var</span> buf = ArrayList(<span class="tok-type">u8</span>).init(testing.allocator);</span> <span class="line" id="L1635"> <span class="tok-kw">var</span> bw = <span class="tok-kw">try</span> huffmanBitWriter(testing.allocator, buf.writer());</span> <span class="line" id="L1636"></span> <span class="line" id="L1637"> <span class="tok-kw">try</span> writeToType(ttype, &bw, ht.tokens, <span class="tok-null">null</span>);</span> <span class="line" id="L1638"></span> <span class="line" id="L1639"> <span class="tok-kw">var</span> got = buf.items;</span> <span class="line" id="L1640"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, want_ni, got); <span class="tok-comment">// expect writeBlock to yield expected result</span> </span> <span class="line" id="L1641"> <span class="tok-kw">try</span> expect(got[<span class="tok-number">0</span>] & <span class="tok-number">1</span> != <span class="tok-number">1</span>); <span class="tok-comment">// expect no EOF</span> </span> <span class="line" id="L1642"></span> <span class="line" id="L1643"> <span class="tok-comment">// Test if the writer produces the same output after reset.</span> </span> <span class="line" id="L1644"> buf.deinit();</span> <span class="line" id="L1645"> buf = ArrayList(<span class="tok-type">u8</span>).init(testing.allocator);</span> <span class="line" id="L1646"> <span class="tok-kw">defer</span> buf.deinit();</span> <span class="line" id="L1647"></span> <span class="line" id="L1648"> bw.reset(buf.writer());</span> <span class="line" id="L1649"> <span class="tok-kw">defer</span> bw.deinit();</span> <span class="line" id="L1650"></span> <span class="line" id="L1651"> <span class="tok-kw">try</span> writeToType(ttype, &bw, ht.tokens, <span class="tok-null">null</span>);</span> <span class="line" id="L1652"> <span class="tok-kw">try</span> bw.flush();</span> <span class="line" id="L1653"> got = buf.items;</span> <span class="line" id="L1654"></span> <span class="line" id="L1655"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, want_ni, got); <span class="tok-comment">// expect writeBlock to yield expected result</span> </span> <span class="line" id="L1656"> <span class="tok-kw">try</span> testWriterEOF(.write_block, ht.tokens, &[<span class="tok-number">0</span>]<span class="tok-type">u8</span>{});</span> <span class="line" id="L1657">}</span> <span class="line" id="L1658"></span> <span class="line" id="L1659"><span class="tok-kw">fn</span> <span class="tok-fn">writeToType</span>(ttype: TestType, bw: <span class="tok-kw">anytype</span>, tok: []<span class="tok-kw">const</span> token.Token, input: ?[]<span class="tok-kw">const</span> <span class="tok-type">u8</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L1660"> <span class="tok-kw">switch</span> (ttype) {</span> <span class="line" id="L1661"> .write_block => <span class="tok-kw">try</span> bw.writeBlock(tok, <span class="tok-null">false</span>, input),</span> <span class="line" id="L1662"> .write_dyn_block => <span class="tok-kw">try</span> bw.writeBlockDynamic(tok, <span class="tok-null">false</span>, input),</span> <span class="line" id="L1663"> <span class="tok-kw">else</span> => <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L1664"> }</span> <span class="line" id="L1665"> <span class="tok-kw">try</span> bw.flush();</span> <span class="line" id="L1666">}</span> <span class="line" id="L1667"></span> <span class="line" id="L1668"><span class="tok-comment">// Tests if the written block contains an EOF marker.</span> </span> <span class="line" id="L1669"><span class="tok-kw">fn</span> <span class="tok-fn">testWriterEOF</span>(ttype: TestType, ht_tokens: []<span class="tok-kw">const</span> token.Token, input: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L1670"> <span class="tok-kw">var</span> buf = ArrayList(<span class="tok-type">u8</span>).init(testing.allocator);</span> <span class="line" id="L1671"> <span class="tok-kw">defer</span> buf.deinit();</span> <span class="line" id="L1672"> <span class="tok-kw">var</span> bw = <span class="tok-kw">try</span> huffmanBitWriter(testing.allocator, buf.writer());</span> <span class="line" id="L1673"> <span class="tok-kw">defer</span> bw.deinit();</span> <span class="line" id="L1674"></span> <span class="line" id="L1675"> <span class="tok-kw">switch</span> (ttype) {</span> <span class="line" id="L1676"> .write_block => <span class="tok-kw">try</span> bw.writeBlock(ht_tokens, <span class="tok-null">true</span>, input),</span> <span class="line" id="L1677"> .write_dyn_block => <span class="tok-kw">try</span> bw.writeBlockDynamic(ht_tokens, <span class="tok-null">true</span>, input),</span> <span class="line" id="L1678"> .write_huffman_block => <span class="tok-kw">try</span> bw.writeBlockHuff(<span class="tok-null">true</span>, input),</span> <span class="line" id="L1679"> }</span> <span class="line" id="L1680"></span> <span class="line" id="L1681"> <span class="tok-kw">try</span> bw.flush();</span> <span class="line" id="L1682"></span> <span class="line" id="L1683"> <span class="tok-kw">var</span> b = buf.items;</span> <span class="line" id="L1684"> <span class="tok-kw">try</span> expect(b.len > <span class="tok-number">0</span>);</span> <span class="line" id="L1685"> <span class="tok-kw">try</span> expect(b[<span class="tok-number">0</span>] & <span class="tok-number">1</span> == <span class="tok-number">1</span>);</span> <span class="line" id="L1686">}</span> <span class="line" id="L1687"></span> </code></pre></body> </html>
repos/yazap/docs/src/std/compress	repos/yazap/docs/src/std/compress/deflate/token.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>compress/deflate/token.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-comment">// 2 bits: type, can be 0 (literal), 1 (EOF), 2 (Match) or 3 (Unused).</span> </span> <span class="line" id="L2"><span class="tok-comment">// 8 bits: xlength (length - MIN_MATCH_LENGTH).</span> </span> <span class="line" id="L3"><span class="tok-comment">// 22 bits: xoffset (offset - MIN_OFFSET_SIZE), or literal.</span> </span> <span class="line" id="L4"><span class="tok-kw">const</span> length_shift = <span class="tok-number">22</span>;</span> <span class="line" id="L5"><span class="tok-kw">const</span> offset_mask = (<span class="tok-number">1</span> << length_shift) - <span class="tok-number">1</span>; <span class="tok-comment">// 4_194_303</span> </span> <span class="line" id="L6"><span class="tok-kw">const</span> literal_type = <span class="tok-number">0</span> << <span class="tok-number">30</span>; <span class="tok-comment">// 0</span> </span> <span class="line" id="L7"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> match_type = <span class="tok-number">1</span> << <span class="tok-number">30</span>; <span class="tok-comment">// 1_073_741_824</span> </span> <span class="line" id="L8"></span> <span class="line" id="L9"><span class="tok-comment">// The length code for length X (MIN_MATCH_LENGTH <= X <= MAX_MATCH_LENGTH)</span> </span> <span class="line" id="L10"><span class="tok-comment">// is length_codes[length - MIN_MATCH_LENGTH]</span> </span> <span class="line" id="L11"><span class="tok-kw">var</span> length_codes = [_]<span class="tok-type">u32</span>{</span> <span class="line" id="L12"> <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">8</span>, <span class="tok-number">8</span>,</span> <span class="line" id="L13"> <span class="tok-number">9</span>, <span class="tok-number">9</span>, <span class="tok-number">10</span>, <span class="tok-number">10</span>, <span class="tok-number">11</span>, <span class="tok-number">11</span>, <span class="tok-number">12</span>, <span class="tok-number">12</span>, <span class="tok-number">12</span>, <span class="tok-number">12</span>,</span> <span class="line" id="L14"> <span class="tok-number">13</span>, <span class="tok-number">13</span>, <span class="tok-number">13</span>, <span class="tok-number">13</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>,</span> <span class="line" id="L15"> <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">16</span>, <span class="tok-number">16</span>, <span class="tok-number">16</span>, <span class="tok-number">16</span>, <span class="tok-number">16</span>, <span class="tok-number">16</span>, <span class="tok-number">16</span>, <span class="tok-number">16</span>,</span> <span class="line" id="L16"> <span class="tok-number">17</span>, <span class="tok-number">17</span>, <span class="tok-number">17</span>, <span class="tok-number">17</span>, <span class="tok-number">17</span>, <span class="tok-number">17</span>, <span class="tok-number">17</span>, <span class="tok-number">17</span>, <span class="tok-number">18</span>, <span class="tok-number">18</span>,</span> <span class="line" id="L17"> <span class="tok-number">18</span>, <span class="tok-number">18</span>, <span class="tok-number">18</span>, <span class="tok-number">18</span>, <span class="tok-number">18</span>, <span class="tok-number">18</span>, <span class="tok-number">19</span>, <span class="tok-number">19</span>, <span class="tok-number">19</span>, <span class="tok-number">19</span>,</span> <span class="line" id="L18"> <span class="tok-number">19</span>, <span class="tok-number">19</span>, <span class="tok-number">19</span>, <span class="tok-number">19</span>, <span class="tok-number">20</span>, <span class="tok-number">20</span>, <span class="tok-number">20</span>, <span class="tok-number">20</span>, <span class="tok-number">20</span>, <span class="tok-number">20</span>,</span> <span class="line" id="L19"> <span class="tok-number">20</span>, <span class="tok-number">20</span>, <span class="tok-number">20</span>, <span class="tok-number">20</span>, <span class="tok-number">20</span>, <span class="tok-number">20</span>, <span class="tok-number">20</span>, <span class="tok-number">20</span>, <span class="tok-number">20</span>, <span class="tok-number">20</span>,</span> <span class="line" id="L20"> <span class="tok-number">21</span>, <span class="tok-number">21</span>, <span class="tok-number">21</span>, <span class="tok-number">21</span>, <span class="tok-number">21</span>, <span class="tok-number">21</span>, <span class="tok-number">21</span>, <span class="tok-number">21</span>, <span class="tok-number">21</span>, <span class="tok-number">21</span>,</span> <span class="line" id="L21"> <span class="tok-number">21</span>, <span class="tok-number">21</span>, <span class="tok-number">21</span>, <span class="tok-number">21</span>, <span class="tok-number">21</span>, <span class="tok-number">21</span>, <span class="tok-number">22</span>, <span class="tok-number">22</span>, <span class="tok-number">22</span>, <span class="tok-number">22</span>,</span> <span class="line" id="L22"> <span class="tok-number">22</span>, <span class="tok-number">22</span>, <span class="tok-number">22</span>, <span class="tok-number">22</span>, <span class="tok-number">22</span>, <span class="tok-number">22</span>, <span class="tok-number">22</span>, <span class="tok-number">22</span>, <span class="tok-number">22</span>, <span class="tok-number">22</span>,</span> <span class="line" id="L23"> <span class="tok-number">22</span>, <span class="tok-number">22</span>, <span class="tok-number">23</span>, <span class="tok-number">23</span>, <span class="tok-number">23</span>, <span class="tok-number">23</span>, <span class="tok-number">23</span>, <span class="tok-number">23</span>, <span class="tok-number">23</span>, <span class="tok-number">23</span>,</span> <span class="line" id="L24"> <span class="tok-number">23</span>, <span class="tok-number">23</span>, <span class="tok-number">23</span>, <span class="tok-number">23</span>, <span class="tok-number">23</span>, <span class="tok-number">23</span>, <span class="tok-number">23</span>, <span class="tok-number">23</span>, <span class="tok-number">24</span>, <span class="tok-number">24</span>,</span> <span class="line" id="L25"> <span class="tok-number">24</span>, <span class="tok-number">24</span>, <span class="tok-number">24</span>, <span class="tok-number">24</span>, <span class="tok-number">24</span>, <span class="tok-number">24</span>, <span class="tok-number">24</span>, <span class="tok-number">24</span>, <span class="tok-number">24</span>, <span class="tok-number">24</span>,</span> <span class="line" id="L26"> <span class="tok-number">24</span>, <span class="tok-number">24</span>, <span class="tok-number">24</span>, <span class="tok-number">24</span>, <span class="tok-number">24</span>, <span class="tok-number">24</span>, <span class="tok-number">24</span>, <span class="tok-number">24</span>, <span class="tok-number">24</span>, <span class="tok-number">24</span>,</span> <span class="line" id="L27"> <span class="tok-number">24</span>, <span class="tok-number">24</span>, <span class="tok-number">24</span>, <span class="tok-number">24</span>, <span class="tok-number">24</span>, <span class="tok-number">24</span>, <span class="tok-number">24</span>, <span class="tok-number">24</span>, <span class="tok-number">24</span>, <span class="tok-number">24</span>,</span> <span class="line" id="L28"> <span class="tok-number">25</span>, <span class="tok-number">25</span>, <span class="tok-number">25</span>, <span class="tok-number">25</span>, <span class="tok-number">25</span>, <span class="tok-number">25</span>, <span class="tok-number">25</span>, <span class="tok-number">25</span>, <span class="tok-number">25</span>, <span class="tok-number">25</span>,</span> <span class="line" id="L29"> <span class="tok-number">25</span>, <span class="tok-number">25</span>, <span class="tok-number">25</span>, <span class="tok-number">25</span>, <span class="tok-number">25</span>, <span class="tok-number">25</span>, <span class="tok-number">25</span>, <span class="tok-number">25</span>, <span class="tok-number">25</span>, <span class="tok-number">25</span>,</span> <span class="line" id="L30"> <span class="tok-number">25</span>, <span class="tok-number">25</span>, <span class="tok-number">25</span>, <span class="tok-number">25</span>, <span class="tok-number">25</span>, <span class="tok-number">25</span>, <span class="tok-number">25</span>, <span class="tok-number">25</span>, <span class="tok-number">25</span>, <span class="tok-number">25</span>,</span> <span class="line" id="L31"> <span class="tok-number">25</span>, <span class="tok-number">25</span>, <span class="tok-number">26</span>, <span class="tok-number">26</span>, <span class="tok-number">26</span>, <span class="tok-number">26</span>, <span class="tok-number">26</span>, <span class="tok-number">26</span>, <span class="tok-number">26</span>, <span class="tok-number">26</span>,</span> <span class="line" id="L32"> <span class="tok-number">26</span>, <span class="tok-number">26</span>, <span class="tok-number">26</span>, <span class="tok-number">26</span>, <span class="tok-number">26</span>, <span class="tok-number">26</span>, <span class="tok-number">26</span>, <span class="tok-number">26</span>, <span class="tok-number">26</span>, <span class="tok-number">26</span>,</span> <span class="line" id="L33"> <span class="tok-number">26</span>, <span class="tok-number">26</span>, <span class="tok-number">26</span>, <span class="tok-number">26</span>, <span class="tok-number">26</span>, <span class="tok-number">26</span>, <span class="tok-number">26</span>, <span class="tok-number">26</span>, <span class="tok-number">26</span>, <span class="tok-number">26</span>,</span> <span class="line" id="L34"> <span class="tok-number">26</span>, <span class="tok-number">26</span>, <span class="tok-number">26</span>, <span class="tok-number">26</span>, <span class="tok-number">27</span>, <span class="tok-number">27</span>, <span class="tok-number">27</span>, <span class="tok-number">27</span>, <span class="tok-number">27</span>, <span class="tok-number">27</span>,</span> <span class="line" id="L35"> <span class="tok-number">27</span>, <span class="tok-number">27</span>, <span class="tok-number">27</span>, <span class="tok-number">27</span>, <span class="tok-number">27</span>, <span class="tok-number">27</span>, <span class="tok-number">27</span>, <span class="tok-number">27</span>, <span class="tok-number">27</span>, <span class="tok-number">27</span>,</span> <span class="line" id="L36"> <span class="tok-number">27</span>, <span class="tok-number">27</span>, <span class="tok-number">27</span>, <span class="tok-number">27</span>, <span class="tok-number">27</span>, <span class="tok-number">27</span>, <span class="tok-number">27</span>, <span class="tok-number">27</span>, <span class="tok-number">27</span>, <span class="tok-number">27</span>,</span> <span class="line" id="L37"> <span class="tok-number">27</span>, <span class="tok-number">27</span>, <span class="tok-number">27</span>, <span class="tok-number">27</span>, <span class="tok-number">27</span>, <span class="tok-number">28</span>,</span> <span class="line" id="L38">};</span> <span class="line" id="L39"></span> <span class="line" id="L40"><span class="tok-kw">var</span> offset_codes = [_]<span class="tok-type">u32</span>{</span> <span class="line" id="L41"> <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">6</span>, <span class="tok-number">6</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">7</span>, <span class="tok-number">7</span>, <span class="tok-number">7</span>,</span> <span class="line" id="L42"> <span class="tok-number">8</span>, <span class="tok-number">8</span>, <span class="tok-number">8</span>, <span class="tok-number">8</span>, <span class="tok-number">8</span>, <span class="tok-number">8</span>, <span class="tok-number">8</span>, <span class="tok-number">8</span>, <span class="tok-number">9</span>, <span class="tok-number">9</span>, <span class="tok-number">9</span>, <span class="tok-number">9</span>, <span class="tok-number">9</span>, <span class="tok-number">9</span>, <span class="tok-number">9</span>, <span class="tok-number">9</span>,</span> <span class="line" id="L43"> <span class="tok-number">10</span>, <span class="tok-number">10</span>, <span class="tok-number">10</span>, <span class="tok-number">10</span>, <span class="tok-number">10</span>, <span class="tok-number">10</span>, <span class="tok-number">10</span>, <span class="tok-number">10</span>, <span class="tok-number">10</span>, <span class="tok-number">10</span>, <span class="tok-number">10</span>, <span class="tok-number">10</span>, <span class="tok-number">10</span>, <span class="tok-number">10</span>, <span class="tok-number">10</span>, <span class="tok-number">10</span>,</span> <span class="line" id="L44"> <span class="tok-number">11</span>, <span class="tok-number">11</span>, <span class="tok-number">11</span>, <span class="tok-number">11</span>, <span class="tok-number">11</span>, <span class="tok-number">11</span>, <span class="tok-number">11</span>, <span class="tok-number">11</span>, <span class="tok-number">11</span>, <span class="tok-number">11</span>, <span class="tok-number">11</span>, <span class="tok-number">11</span>, <span class="tok-number">11</span>, <span class="tok-number">11</span>, <span class="tok-number">11</span>, <span class="tok-number">11</span>,</span> <span class="line" id="L45"> <span class="tok-number">12</span>, <span class="tok-number">12</span>, <span class="tok-number">12</span>, <span class="tok-number">12</span>, <span class="tok-number">12</span>, <span class="tok-number">12</span>, <span class="tok-number">12</span>, <span class="tok-number">12</span>, <span class="tok-number">12</span>, <span class="tok-number">12</span>, <span class="tok-number">12</span>, <span class="tok-number">12</span>, <span class="tok-number">12</span>, <span class="tok-number">12</span>, <span class="tok-number">12</span>, <span class="tok-number">12</span>,</span> <span class="line" id="L46"> <span class="tok-number">12</span>, <span class="tok-number">12</span>, <span class="tok-number">12</span>, <span class="tok-number">12</span>, <span class="tok-number">12</span>, <span class="tok-number">12</span>, <span class="tok-number">12</span>, <span class="tok-number">12</span>, <span class="tok-number">12</span>, <span class="tok-number">12</span>, <span class="tok-number">12</span>, <span class="tok-number">12</span>, <span class="tok-number">12</span>, <span class="tok-number">12</span>, <span class="tok-number">12</span>, <span class="tok-number">12</span>,</span> <span class="line" id="L47"> <span class="tok-number">13</span>, <span class="tok-number">13</span>, <span class="tok-number">13</span>, <span class="tok-number">13</span>, <span class="tok-number">13</span>, <span class="tok-number">13</span>, <span class="tok-number">13</span>, <span class="tok-number">13</span>, <span class="tok-number">13</span>, <span class="tok-number">13</span>, <span class="tok-number">13</span>, <span class="tok-number">13</span>, <span class="tok-number">13</span>, <span class="tok-number">13</span>, <span class="tok-number">13</span>, <span class="tok-number">13</span>,</span> <span class="line" id="L48"> <span class="tok-number">13</span>, <span class="tok-number">13</span>, <span class="tok-number">13</span>, <span class="tok-number">13</span>, <span class="tok-number">13</span>, <span class="tok-number">13</span>, <span class="tok-number">13</span>, <span class="tok-number">13</span>, <span class="tok-number">13</span>, <span class="tok-number">13</span>, <span class="tok-number">13</span>, <span class="tok-number">13</span>, <span class="tok-number">13</span>, <span class="tok-number">13</span>, <span class="tok-number">13</span>, <span class="tok-number">13</span>,</span> <span class="line" id="L49"> <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>,</span> <span class="line" id="L50"> <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>,</span> <span class="line" id="L51"> <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>,</span> <span class="line" id="L52"> <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>,</span> <span class="line" id="L53"> <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>,</span> <span class="line" id="L54"> <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>,</span> <span class="line" id="L55"> <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>,</span> <span class="line" id="L56"> <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>, <span class="tok-number">15</span>,</span> <span class="line" id="L57">};</span> <span class="line" id="L58"></span> <span class="line" id="L59"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Token = <span class="tok-type">u32</span>;</span> <span class="line" id="L60"></span> <span class="line" id="L61"><span class="tok-comment">// Convert a literal into a literal token.</span> </span> <span class="line" id="L62"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">literalToken</span>(lit: <span class="tok-type">u32</span>) Token {</span> <span class="line" id="L63"> <span class="tok-kw">return</span> literal_type + lit;</span> <span class="line" id="L64">}</span> <span class="line" id="L65"></span> <span class="line" id="L66"><span class="tok-comment">// Convert a < xlength, xoffset > pair into a match token.</span> </span> <span class="line" id="L67"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">matchToken</span>(xlength: <span class="tok-type">u32</span>, xoffset: <span class="tok-type">u32</span>) Token {</span> <span class="line" id="L68"> <span class="tok-kw">return</span> match_type + (xlength << length_shift) + xoffset;</span> <span class="line" id="L69">}</span> <span class="line" id="L70"></span> <span class="line" id="L71"><span class="tok-comment">// Returns the literal of a literal token</span> </span> <span class="line" id="L72"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">literal</span>(t: Token) <span class="tok-type">u32</span> {</span> <span class="line" id="L73"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(t - literal_type));</span> <span class="line" id="L74">}</span> <span class="line" id="L75"></span> <span class="line" id="L76"><span class="tok-comment">// Returns the extra offset of a match token</span> </span> <span class="line" id="L77"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">offset</span>(t: Token) <span class="tok-type">u32</span> {</span> <span class="line" id="L78"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(t)) & offset_mask;</span> <span class="line" id="L79">}</span> <span class="line" id="L80"></span> <span class="line" id="L81"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">length</span>(t: Token) <span class="tok-type">u32</span> {</span> <span class="line" id="L82"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>((t - match_type) >> length_shift));</span> <span class="line" id="L83">}</span> <span class="line" id="L84"></span> <span class="line" id="L85"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">lengthCode</span>(len: <span class="tok-type">u32</span>) <span class="tok-type">u32</span> {</span> <span class="line" id="L86"> <span class="tok-kw">return</span> length_codes[len];</span> <span class="line" id="L87">}</span> <span class="line" id="L88"></span> <span class="line" id="L89"><span class="tok-comment">// Returns the offset code corresponding to a specific offset</span> </span> <span class="line" id="L90"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">offsetCode</span>(off: <span class="tok-type">u32</span>) <span class="tok-type">u32</span> {</span> <span class="line" id="L91"> <span class="tok-kw">if</span> (off < <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(offset_codes.len))) {</span> <span class="line" id="L92"> <span class="tok-kw">return</span> offset_codes[off];</span> <span class="line" id="L93"> }</span> <span class="line" id="L94"> <span class="tok-kw">if</span> (off >> <span class="tok-number">7</span> < <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(offset_codes.len))) {</span> <span class="line" id="L95"> <span class="tok-kw">return</span> offset_codes[off >> <span class="tok-number">7</span>] + <span class="tok-number">14</span>;</span> <span class="line" id="L96"> }</span> <span class="line" id="L97"> <span class="tok-kw">return</span> offset_codes[off >> <span class="tok-number">14</span>] + <span class="tok-number">28</span>;</span> <span class="line" id="L98">}</span> <span class="line" id="L99"></span> <span class="line" id="L100"><span class="tok-kw">test</span> {</span> <span class="line" id="L101"> <span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L102"> <span class="tok-kw">try</span> std.testing.expectEqual(<span class="tok-builtin">@as</span>(Token, <span class="tok-number">3_401_581_099</span>), matchToken(<span class="tok-number">555</span>, <span class="tok-number">555</span>));</span> <span class="line" id="L103">}</span> <span class="line" id="L104"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/c/tokenizer.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>c/tokenizer.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L2"></span> <span class="line" id="L3"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Token = <span class="tok-kw">struct</span> {</span> <span class="line" id="L4"> id: Id,</span> <span class="line" id="L5"> start: <span class="tok-type">usize</span>,</span> <span class="line" id="L6"> end: <span class="tok-type">usize</span>,</span> <span class="line" id="L7"></span> <span class="line" id="L8"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Id = <span class="tok-kw">union</span>(<span class="tok-kw">enum</span>) {</span> <span class="line" id="L9"> Invalid,</span> <span class="line" id="L10"> Eof,</span> <span class="line" id="L11"> Nl,</span> <span class="line" id="L12"> Identifier,</span> <span class="line" id="L13"></span> <span class="line" id="L14"> <span class="tok-comment">/// special case for #include <...></span></span> <span class="line" id="L15"> MacroString,</span> <span class="line" id="L16"> StringLiteral: StrKind,</span> <span class="line" id="L17"> CharLiteral: StrKind,</span> <span class="line" id="L18"> IntegerLiteral: NumSuffix,</span> <span class="line" id="L19"> FloatLiteral: NumSuffix,</span> <span class="line" id="L20"> Bang,</span> <span class="line" id="L21"> BangEqual,</span> <span class="line" id="L22"> Pipe,</span> <span class="line" id="L23"> PipePipe,</span> <span class="line" id="L24"> PipeEqual,</span> <span class="line" id="L25"> Equal,</span> <span class="line" id="L26"> EqualEqual,</span> <span class="line" id="L27"> LParen,</span> <span class="line" id="L28"> RParen,</span> <span class="line" id="L29"> LBrace,</span> <span class="line" id="L30"> RBrace,</span> <span class="line" id="L31"> LBracket,</span> <span class="line" id="L32"> RBracket,</span> <span class="line" id="L33"> Period,</span> <span class="line" id="L34"> Ellipsis,</span> <span class="line" id="L35"> Caret,</span> <span class="line" id="L36"> CaretEqual,</span> <span class="line" id="L37"> Plus,</span> <span class="line" id="L38"> PlusPlus,</span> <span class="line" id="L39"> PlusEqual,</span> <span class="line" id="L40"> Minus,</span> <span class="line" id="L41"> MinusMinus,</span> <span class="line" id="L42"> MinusEqual,</span> <span class="line" id="L43"> Asterisk,</span> <span class="line" id="L44"> AsteriskEqual,</span> <span class="line" id="L45"> Percent,</span> <span class="line" id="L46"> PercentEqual,</span> <span class="line" id="L47"> Arrow,</span> <span class="line" id="L48"> Colon,</span> <span class="line" id="L49"> Semicolon,</span> <span class="line" id="L50"> Slash,</span> <span class="line" id="L51"> SlashEqual,</span> <span class="line" id="L52"> Comma,</span> <span class="line" id="L53"> Ampersand,</span> <span class="line" id="L54"> AmpersandAmpersand,</span> <span class="line" id="L55"> AmpersandEqual,</span> <span class="line" id="L56"> QuestionMark,</span> <span class="line" id="L57"> AngleBracketLeft,</span> <span class="line" id="L58"> AngleBracketLeftEqual,</span> <span class="line" id="L59"> AngleBracketAngleBracketLeft,</span> <span class="line" id="L60"> AngleBracketAngleBracketLeftEqual,</span> <span class="line" id="L61"> AngleBracketRight,</span> <span class="line" id="L62"> AngleBracketRightEqual,</span> <span class="line" id="L63"> AngleBracketAngleBracketRight,</span> <span class="line" id="L64"> AngleBracketAngleBracketRightEqual,</span> <span class="line" id="L65"> Tilde,</span> <span class="line" id="L66"> LineComment,</span> <span class="line" id="L67"> MultiLineComment,</span> <span class="line" id="L68"> Hash,</span> <span class="line" id="L69"> HashHash,</span> <span class="line" id="L70"></span> <span class="line" id="L71"> Keyword_auto,</span> <span class="line" id="L72"> Keyword_break,</span> <span class="line" id="L73"> Keyword_case,</span> <span class="line" id="L74"> Keyword_char,</span> <span class="line" id="L75"> Keyword_const,</span> <span class="line" id="L76"> Keyword_continue,</span> <span class="line" id="L77"> Keyword_default,</span> <span class="line" id="L78"> Keyword_do,</span> <span class="line" id="L79"> Keyword_double,</span> <span class="line" id="L80"> Keyword_else,</span> <span class="line" id="L81"> Keyword_enum,</span> <span class="line" id="L82"> Keyword_extern,</span> <span class="line" id="L83"> Keyword_float,</span> <span class="line" id="L84"> Keyword_for,</span> <span class="line" id="L85"> Keyword_goto,</span> <span class="line" id="L86"> Keyword_if,</span> <span class="line" id="L87"> Keyword_int,</span> <span class="line" id="L88"> Keyword_long,</span> <span class="line" id="L89"> Keyword_register,</span> <span class="line" id="L90"> Keyword_return,</span> <span class="line" id="L91"> Keyword_short,</span> <span class="line" id="L92"> Keyword_signed,</span> <span class="line" id="L93"> Keyword_sizeof,</span> <span class="line" id="L94"> Keyword_static,</span> <span class="line" id="L95"> Keyword_struct,</span> <span class="line" id="L96"> Keyword_switch,</span> <span class="line" id="L97"> Keyword_typedef,</span> <span class="line" id="L98"> Keyword_union,</span> <span class="line" id="L99"> Keyword_unsigned,</span> <span class="line" id="L100"> Keyword_void,</span> <span class="line" id="L101"> Keyword_volatile,</span> <span class="line" id="L102"> Keyword_while,</span> <span class="line" id="L103"></span> <span class="line" id="L104"> <span class="tok-comment">// ISO C99</span> </span> <span class="line" id="L105"> Keyword_bool,</span> <span class="line" id="L106"> Keyword_complex,</span> <span class="line" id="L107"> Keyword_imaginary,</span> <span class="line" id="L108"> Keyword_inline,</span> <span class="line" id="L109"> Keyword_restrict,</span> <span class="line" id="L110"></span> <span class="line" id="L111"> <span class="tok-comment">// ISO C11</span> </span> <span class="line" id="L112"> Keyword_alignas,</span> <span class="line" id="L113"> Keyword_alignof,</span> <span class="line" id="L114"> Keyword_atomic,</span> <span class="line" id="L115"> Keyword_generic,</span> <span class="line" id="L116"> Keyword_noreturn,</span> <span class="line" id="L117"> Keyword_static_assert,</span> <span class="line" id="L118"> Keyword_thread_local,</span> <span class="line" id="L119"></span> <span class="line" id="L120"> <span class="tok-comment">// Preprocessor directives</span> </span> <span class="line" id="L121"> Keyword_include,</span> <span class="line" id="L122"> Keyword_define,</span> <span class="line" id="L123"> Keyword_ifdef,</span> <span class="line" id="L124"> Keyword_ifndef,</span> <span class="line" id="L125"> Keyword_error,</span> <span class="line" id="L126"> Keyword_pragma,</span> <span class="line" id="L127"></span> <span class="line" id="L128"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">symbol</span>(id: Id) []<span class="tok-kw">const</span> <span class="tok-type">u8</span> {</span> <span class="line" id="L129"> <span class="tok-kw">return</span> symbolName(id);</span> <span class="line" id="L130"> }</span> <span class="line" id="L131"></span> <span class="line" id="L132"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">symbolName</span>(id: std.meta.Tag(Id)) []<span class="tok-kw">const</span> <span class="tok-type">u8</span> {</span> <span class="line" id="L133"> <span class="tok-kw">return</span> <span class="tok-kw">switch</span> (id) {</span> <span class="line" id="L134"> .Invalid => <span class="tok-str">"Invalid"</span>,</span> <span class="line" id="L135"> .Eof => <span class="tok-str">"Eof"</span>,</span> <span class="line" id="L136"> .Nl => <span class="tok-str">"NewLine"</span>,</span> <span class="line" id="L137"> .Identifier => <span class="tok-str">"Identifier"</span>,</span> <span class="line" id="L138"> .MacroString => <span class="tok-str">"MacroString"</span>,</span> <span class="line" id="L139"> .StringLiteral => <span class="tok-str">"StringLiteral"</span>,</span> <span class="line" id="L140"> .CharLiteral => <span class="tok-str">"CharLiteral"</span>,</span> <span class="line" id="L141"> .IntegerLiteral => <span class="tok-str">"IntegerLiteral"</span>,</span> <span class="line" id="L142"> .FloatLiteral => <span class="tok-str">"FloatLiteral"</span>,</span> <span class="line" id="L143"> .LineComment => <span class="tok-str">"LineComment"</span>,</span> <span class="line" id="L144"> .MultiLineComment => <span class="tok-str">"MultiLineComment"</span>,</span> <span class="line" id="L145"></span> <span class="line" id="L146"> .Bang => <span class="tok-str">"!"</span>,</span> <span class="line" id="L147"> .BangEqual => <span class="tok-str">"!="</span>,</span> <span class="line" id="L148"> .Pipe => <span class="tok-str">"\|"</span>,</span> <span class="line" id="L149"> .PipePipe => <span class="tok-str">"\|\|"</span>,</span> <span class="line" id="L150"> .PipeEqual => <span class="tok-str">"\|="</span>,</span> <span class="line" id="L151"> .Equal => <span class="tok-str">"="</span>,</span> <span class="line" id="L152"> .EqualEqual => <span class="tok-str">"=="</span>,</span> <span class="line" id="L153"> .LParen => <span class="tok-str">"("</span>,</span> <span class="line" id="L154"> .RParen => <span class="tok-str">")"</span>,</span> <span class="line" id="L155"> .LBrace => <span class="tok-str">"{"</span>,</span> <span class="line" id="L156"> .RBrace => <span class="tok-str">"}"</span>,</span> <span class="line" id="L157"> .LBracket => <span class="tok-str">"["</span>,</span> <span class="line" id="L158"> .RBracket => <span class="tok-str">"]"</span>,</span> <span class="line" id="L159"> .Period => <span class="tok-str">"."</span>,</span> <span class="line" id="L160"> .Ellipsis => <span class="tok-str">"..."</span>,</span> <span class="line" id="L161"> .Caret => <span class="tok-str">"^"</span>,</span> <span class="line" id="L162"> .CaretEqual => <span class="tok-str">"^="</span>,</span> <span class="line" id="L163"> .Plus => <span class="tok-str">"+"</span>,</span> <span class="line" id="L164"> .PlusPlus => <span class="tok-str">"++"</span>,</span> <span class="line" id="L165"> .PlusEqual => <span class="tok-str">"+="</span>,</span> <span class="line" id="L166"> .Minus => <span class="tok-str">"-"</span>,</span> <span class="line" id="L167"> .MinusMinus => <span class="tok-str">"--"</span>,</span> <span class="line" id="L168"> .MinusEqual => <span class="tok-str">"-="</span>,</span> <span class="line" id="L169"> .Asterisk => <span class="tok-str">""</span>,</span> <span class="line" id="L170"> .AsteriskEqual => <span class="tok-str">"="</span>,</span> <span class="line" id="L171"> .Percent => <span class="tok-str">"%"</span>,</span> <span class="line" id="L172"> .PercentEqual => <span class="tok-str">"%="</span>,</span> <span class="line" id="L173"> .Arrow => <span class="tok-str">"->"</span>,</span> <span class="line" id="L174"> .Colon => <span class="tok-str">":"</span>,</span> <span class="line" id="L175"> .Semicolon => <span class="tok-str">";"</span>,</span> <span class="line" id="L176"> .Slash => <span class="tok-str">"/"</span>,</span> <span class="line" id="L177"> .SlashEqual => <span class="tok-str">"/="</span>,</span> <span class="line" id="L178"> .Comma => <span class="tok-str">","</span>,</span> <span class="line" id="L179"> .Ampersand => <span class="tok-str">"&"</span>,</span> <span class="line" id="L180"> .AmpersandAmpersand => <span class="tok-str">"&&"</span>,</span> <span class="line" id="L181"> .AmpersandEqual => <span class="tok-str">"&="</span>,</span> <span class="line" id="L182"> .QuestionMark => <span class="tok-str">"?"</span>,</span> <span class="line" id="L183"> .AngleBracketLeft => <span class="tok-str">"<"</span>,</span> <span class="line" id="L184"> .AngleBracketLeftEqual => <span class="tok-str">"<="</span>,</span> <span class="line" id="L185"> .AngleBracketAngleBracketLeft => <span class="tok-str">"<<"</span>,</span> <span class="line" id="L186"> .AngleBracketAngleBracketLeftEqual => <span class="tok-str">"<<="</span>,</span> <span class="line" id="L187"> .AngleBracketRight => <span class="tok-str">">"</span>,</span> <span class="line" id="L188"> .AngleBracketRightEqual => <span class="tok-str">">="</span>,</span> <span class="line" id="L189"> .AngleBracketAngleBracketRight => <span class="tok-str">">>"</span>,</span> <span class="line" id="L190"> .AngleBracketAngleBracketRightEqual => <span class="tok-str">">>="</span>,</span> <span class="line" id="L191"> .Tilde => <span class="tok-str">"~"</span>,</span> <span class="line" id="L192"> .Hash => <span class="tok-str">"#"</span>,</span> <span class="line" id="L193"> .HashHash => <span class="tok-str">"##"</span>,</span> <span class="line" id="L194"> .Keyword_auto => <span class="tok-str">"auto"</span>,</span> <span class="line" id="L195"> .Keyword_break => <span class="tok-str">"break"</span>,</span> <span class="line" id="L196"> .Keyword_case => <span class="tok-str">"case"</span>,</span> <span class="line" id="L197"> .Keyword_char => <span class="tok-str">"char"</span>,</span> <span class="line" id="L198"> .Keyword_const => <span class="tok-str">"const"</span>,</span> <span class="line" id="L199"> .Keyword_continue => <span class="tok-str">"continue"</span>,</span> <span class="line" id="L200"> .Keyword_default => <span class="tok-str">"default"</span>,</span> <span class="line" id="L201"> .Keyword_do => <span class="tok-str">"do"</span>,</span> <span class="line" id="L202"> .Keyword_double => <span class="tok-str">"double"</span>,</span> <span class="line" id="L203"> .Keyword_else => <span class="tok-str">"else"</span>,</span> <span class="line" id="L204"> .Keyword_enum => <span class="tok-str">"enum"</span>,</span> <span class="line" id="L205"> .Keyword_extern => <span class="tok-str">"extern"</span>,</span> <span class="line" id="L206"> .Keyword_float => <span class="tok-str">"float"</span>,</span> <span class="line" id="L207"> .Keyword_for => <span class="tok-str">"for"</span>,</span> <span class="line" id="L208"> .Keyword_goto => <span class="tok-str">"goto"</span>,</span> <span class="line" id="L209"> .Keyword_if => <span class="tok-str">"if"</span>,</span> <span class="line" id="L210"> .Keyword_int => <span class="tok-str">"int"</span>,</span> <span class="line" id="L211"> .Keyword_long => <span class="tok-str">"long"</span>,</span> <span class="line" id="L212"> .Keyword_register => <span class="tok-str">"register"</span>,</span> <span class="line" id="L213"> .Keyword_return => <span class="tok-str">"return"</span>,</span> <span class="line" id="L214"> .Keyword_short => <span class="tok-str">"short"</span>,</span> <span class="line" id="L215"> .Keyword_signed => <span class="tok-str">"signed"</span>,</span> <span class="line" id="L216"> .Keyword_sizeof => <span class="tok-str">"sizeof"</span>,</span> <span class="line" id="L217"> .Keyword_static => <span class="tok-str">"static"</span>,</span> <span class="line" id="L218"> .Keyword_struct => <span class="tok-str">"struct"</span>,</span> <span class="line" id="L219"> .Keyword_switch => <span class="tok-str">"switch"</span>,</span> <span class="line" id="L220"> .Keyword_typedef => <span class="tok-str">"typedef"</span>,</span> <span class="line" id="L221"> .Keyword_union => <span class="tok-str">"union"</span>,</span> <span class="line" id="L222"> .Keyword_unsigned => <span class="tok-str">"unsigned"</span>,</span> <span class="line" id="L223"> .Keyword_void => <span class="tok-str">"void"</span>,</span> <span class="line" id="L224"> .Keyword_volatile => <span class="tok-str">"volatile"</span>,</span> <span class="line" id="L225"> .Keyword_while => <span class="tok-str">"while"</span>,</span> <span class="line" id="L226"> .Keyword_bool => <span class="tok-str">"_Bool"</span>,</span> <span class="line" id="L227"> .Keyword_complex => <span class="tok-str">"_Complex"</span>,</span> <span class="line" id="L228"> .Keyword_imaginary => <span class="tok-str">"_Imaginary"</span>,</span> <span class="line" id="L229"> .Keyword_inline => <span class="tok-str">"inline"</span>,</span> <span class="line" id="L230"> .Keyword_restrict => <span class="tok-str">"restrict"</span>,</span> <span class="line" id="L231"> .Keyword_alignas => <span class="tok-str">"_Alignas"</span>,</span> <span class="line" id="L232"> .Keyword_alignof => <span class="tok-str">"_Alignof"</span>,</span> <span class="line" id="L233"> .Keyword_atomic => <span class="tok-str">"_Atomic"</span>,</span> <span class="line" id="L234"> .Keyword_generic => <span class="tok-str">"_Generic"</span>,</span> <span class="line" id="L235"> .Keyword_noreturn => <span class="tok-str">"_Noreturn"</span>,</span> <span class="line" id="L236"> .Keyword_static_assert => <span class="tok-str">"_Static_assert"</span>,</span> <span class="line" id="L237"> .Keyword_thread_local => <span class="tok-str">"_Thread_local"</span>,</span> <span class="line" id="L238"> .Keyword_include => <span class="tok-str">"include"</span>,</span> <span class="line" id="L239"> .Keyword_define => <span class="tok-str">"define"</span>,</span> <span class="line" id="L240"> .Keyword_ifdef => <span class="tok-str">"ifdef"</span>,</span> <span class="line" id="L241"> .Keyword_ifndef => <span class="tok-str">"ifndef"</span>,</span> <span class="line" id="L242"> .Keyword_error => <span class="tok-str">"error"</span>,</span> <span class="line" id="L243"> .Keyword_pragma => <span class="tok-str">"pragma"</span>,</span> <span class="line" id="L244"> };</span> <span class="line" id="L245"> }</span> <span class="line" id="L246"> };</span> <span class="line" id="L247"></span> <span class="line" id="L248"> <span class="tok-comment">// TODO extensions</span> </span> <span class="line" id="L249"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> keywords = std.ComptimeStringMap(Id, .{</span> <span class="line" id="L250"> .{ <span class="tok-str">"auto"</span>, .Keyword_auto },</span> <span class="line" id="L251"> .{ <span class="tok-str">"break"</span>, .Keyword_break },</span> <span class="line" id="L252"> .{ <span class="tok-str">"case"</span>, .Keyword_case },</span> <span class="line" id="L253"> .{ <span class="tok-str">"char"</span>, .Keyword_char },</span> <span class="line" id="L254"> .{ <span class="tok-str">"const"</span>, .Keyword_const },</span> <span class="line" id="L255"> .{ <span class="tok-str">"continue"</span>, .Keyword_continue },</span> <span class="line" id="L256"> .{ <span class="tok-str">"default"</span>, .Keyword_default },</span> <span class="line" id="L257"> .{ <span class="tok-str">"do"</span>, .Keyword_do },</span> <span class="line" id="L258"> .{ <span class="tok-str">"double"</span>, .Keyword_double },</span> <span class="line" id="L259"> .{ <span class="tok-str">"else"</span>, .Keyword_else },</span> <span class="line" id="L260"> .{ <span class="tok-str">"enum"</span>, .Keyword_enum },</span> <span class="line" id="L261"> .{ <span class="tok-str">"extern"</span>, .Keyword_extern },</span> <span class="line" id="L262"> .{ <span class="tok-str">"float"</span>, .Keyword_float },</span> <span class="line" id="L263"> .{ <span class="tok-str">"for"</span>, .Keyword_for },</span> <span class="line" id="L264"> .{ <span class="tok-str">"goto"</span>, .Keyword_goto },</span> <span class="line" id="L265"> .{ <span class="tok-str">"if"</span>, .Keyword_if },</span> <span class="line" id="L266"> .{ <span class="tok-str">"int"</span>, .Keyword_int },</span> <span class="line" id="L267"> .{ <span class="tok-str">"long"</span>, .Keyword_long },</span> <span class="line" id="L268"> .{ <span class="tok-str">"register"</span>, .Keyword_register },</span> <span class="line" id="L269"> .{ <span class="tok-str">"return"</span>, .Keyword_return },</span> <span class="line" id="L270"> .{ <span class="tok-str">"short"</span>, .Keyword_short },</span> <span class="line" id="L271"> .{ <span class="tok-str">"signed"</span>, .Keyword_signed },</span> <span class="line" id="L272"> .{ <span class="tok-str">"sizeof"</span>, .Keyword_sizeof },</span> <span class="line" id="L273"> .{ <span class="tok-str">"static"</span>, .Keyword_static },</span> <span class="line" id="L274"> .{ <span class="tok-str">"struct"</span>, .Keyword_struct },</span> <span class="line" id="L275"> .{ <span class="tok-str">"switch"</span>, .Keyword_switch },</span> <span class="line" id="L276"> .{ <span class="tok-str">"typedef"</span>, .Keyword_typedef },</span> <span class="line" id="L277"> .{ <span class="tok-str">"union"</span>, .Keyword_union },</span> <span class="line" id="L278"> .{ <span class="tok-str">"unsigned"</span>, .Keyword_unsigned },</span> <span class="line" id="L279"> .{ <span class="tok-str">"void"</span>, .Keyword_void },</span> <span class="line" id="L280"> .{ <span class="tok-str">"volatile"</span>, .Keyword_volatile },</span> <span class="line" id="L281"> .{ <span class="tok-str">"while"</span>, .Keyword_while },</span> <span class="line" id="L282"></span> <span class="line" id="L283"> <span class="tok-comment">// ISO C99</span> </span> <span class="line" id="L284"> .{ <span class="tok-str">"_Bool"</span>, .Keyword_bool },</span> <span class="line" id="L285"> .{ <span class="tok-str">"_Complex"</span>, .Keyword_complex },</span> <span class="line" id="L286"> .{ <span class="tok-str">"_Imaginary"</span>, .Keyword_imaginary },</span> <span class="line" id="L287"> .{ <span class="tok-str">"inline"</span>, .Keyword_inline },</span> <span class="line" id="L288"> .{ <span class="tok-str">"restrict"</span>, .Keyword_restrict },</span> <span class="line" id="L289"></span> <span class="line" id="L290"> <span class="tok-comment">// ISO C11</span> </span> <span class="line" id="L291"> .{ <span class="tok-str">"_Alignas"</span>, .Keyword_alignas },</span> <span class="line" id="L292"> .{ <span class="tok-str">"_Alignof"</span>, .Keyword_alignof },</span> <span class="line" id="L293"> .{ <span class="tok-str">"_Atomic"</span>, .Keyword_atomic },</span> <span class="line" id="L294"> .{ <span class="tok-str">"_Generic"</span>, .Keyword_generic },</span> <span class="line" id="L295"> .{ <span class="tok-str">"_Noreturn"</span>, .Keyword_noreturn },</span> <span class="line" id="L296"> .{ <span class="tok-str">"_Static_assert"</span>, .Keyword_static_assert },</span> <span class="line" id="L297"> .{ <span class="tok-str">"_Thread_local"</span>, .Keyword_thread_local },</span> <span class="line" id="L298"></span> <span class="line" id="L299"> <span class="tok-comment">// Preprocessor directives</span> </span> <span class="line" id="L300"> .{ <span class="tok-str">"include"</span>, .Keyword_include },</span> <span class="line" id="L301"> .{ <span class="tok-str">"define"</span>, .Keyword_define },</span> <span class="line" id="L302"> .{ <span class="tok-str">"ifdef"</span>, .Keyword_ifdef },</span> <span class="line" id="L303"> .{ <span class="tok-str">"ifndef"</span>, .Keyword_ifndef },</span> <span class="line" id="L304"> .{ <span class="tok-str">"error"</span>, .Keyword_error },</span> <span class="line" id="L305"> .{ <span class="tok-str">"pragma"</span>, .Keyword_pragma },</span> <span class="line" id="L306"> });</span> <span class="line" id="L307"></span> <span class="line" id="L308"> <span class="tok-comment">// TODO do this in the preprocessor</span> </span> <span class="line" id="L309"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">getKeyword</span>(bytes: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, pp_directive: <span class="tok-type">bool</span>) ?Id {</span> <span class="line" id="L310"> <span class="tok-kw">if</span> (keywords.get(bytes)) \|id\| {</span> <span class="line" id="L311"> <span class="tok-kw">switch</span> (id) {</span> <span class="line" id="L312"> .Keyword_include,</span> <span class="line" id="L313"> .Keyword_define,</span> <span class="line" id="L314"> .Keyword_ifdef,</span> <span class="line" id="L315"> .Keyword_ifndef,</span> <span class="line" id="L316"> .Keyword_error,</span> <span class="line" id="L317"> .Keyword_pragma,</span> <span class="line" id="L318"> => <span class="tok-kw">if</span> (!pp_directive) <span class="tok-kw">return</span> <span class="tok-null">null</span>,</span> <span class="line" id="L319"> <span class="tok-kw">else</span> => {},</span> <span class="line" id="L320"> }</span> <span class="line" id="L321"> <span class="tok-kw">return</span> id;</span> <span class="line" id="L322"> }</span> <span class="line" id="L323"> <span class="tok-kw">return</span> <span class="tok-null">null</span>;</span> <span class="line" id="L324"> }</span> <span class="line" id="L325"></span> <span class="line" id="L326"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> NumSuffix = <span class="tok-kw">enum</span> {</span> <span class="line" id="L327"> none,</span> <span class="line" id="L328"> f,</span> <span class="line" id="L329"> l,</span> <span class="line" id="L330"> u,</span> <span class="line" id="L331"> lu,</span> <span class="line" id="L332"> ll,</span> <span class="line" id="L333"> llu,</span> <span class="line" id="L334"> };</span> <span class="line" id="L335"></span> <span class="line" id="L336"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> StrKind = <span class="tok-kw">enum</span> {</span> <span class="line" id="L337"> none,</span> <span class="line" id="L338"> wide,</span> <span class="line" id="L339"> utf_8,</span> <span class="line" id="L340"> utf_16,</span> <span class="line" id="L341"> utf_32,</span> <span class="line" id="L342"> };</span> <span class="line" id="L343">};</span> <span class="line" id="L344"></span> <span class="line" id="L345"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Tokenizer = <span class="tok-kw">struct</span> {</span> <span class="line" id="L346"> buffer: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L347"> index: <span class="tok-type">usize</span> = <span class="tok-number">0</span>,</span> <span class="line" id="L348"> prev_tok_id: std.meta.Tag(Token.Id) = .Invalid,</span> <span class="line" id="L349"> pp_directive: <span class="tok-type">bool</span> = <span class="tok-null">false</span>,</span> <span class="line" id="L350"></span> <span class="line" id="L351"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">next</span>(self: Tokenizer) Token {</span> <span class="line" id="L352"> <span class="tok-kw">var</span> result = Token{</span> <span class="line" id="L353"> .id = .Eof,</span> <span class="line" id="L354"> .start = self.index,</span> <span class="line" id="L355"> .end = <span class="tok-null">undefined</span>,</span> <span class="line" id="L356"> };</span> <span class="line" id="L357"> <span class="tok-kw">var</span> state: <span class="tok-kw">enum</span> {</span> <span class="line" id="L358"> Start,</span> <span class="line" id="L359"> Cr,</span> <span class="line" id="L360"> BackSlash,</span> <span class="line" id="L361"> BackSlashCr,</span> <span class="line" id="L362"> u,</span> <span class="line" id="L363"> <span class="tok-type">u8</span>,</span> <span class="line" id="L364"> U,</span> <span class="line" id="L365"> L,</span> <span class="line" id="L366"> StringLiteral,</span> <span class="line" id="L367"> CharLiteralStart,</span> <span class="line" id="L368"> CharLiteral,</span> <span class="line" id="L369"> EscapeSequence,</span> <span class="line" id="L370"> CrEscape,</span> <span class="line" id="L371"> OctalEscape,</span> <span class="line" id="L372"> HexEscape,</span> <span class="line" id="L373"> UnicodeEscape,</span> <span class="line" id="L374"> Identifier,</span> <span class="line" id="L375"> Equal,</span> <span class="line" id="L376"> Bang,</span> <span class="line" id="L377"> Pipe,</span> <span class="line" id="L378"> Percent,</span> <span class="line" id="L379"> Asterisk,</span> <span class="line" id="L380"> Plus,</span> <span class="line" id="L381"></span> <span class="line" id="L382"> <span class="tok-comment">/// special case for #include <...></span></span> <span class="line" id="L383"> MacroString,</span> <span class="line" id="L384"> AngleBracketLeft,</span> <span class="line" id="L385"> AngleBracketAngleBracketLeft,</span> <span class="line" id="L386"> AngleBracketRight,</span> <span class="line" id="L387"> AngleBracketAngleBracketRight,</span> <span class="line" id="L388"> Caret,</span> <span class="line" id="L389"> Period,</span> <span class="line" id="L390"> Period2,</span> <span class="line" id="L391"> Minus,</span> <span class="line" id="L392"> Slash,</span> <span class="line" id="L393"> Ampersand,</span> <span class="line" id="L394"> Hash,</span> <span class="line" id="L395"> LineComment,</span> <span class="line" id="L396"> MultiLineComment,</span> <span class="line" id="L397"> MultiLineCommentAsterisk,</span> <span class="line" id="L398"> Zero,</span> <span class="line" id="L399"> IntegerLiteralOct,</span> <span class="line" id="L400"> IntegerLiteralBinary,</span> <span class="line" id="L401"> IntegerLiteralBinaryFirst,</span> <span class="line" id="L402"> IntegerLiteralHex,</span> <span class="line" id="L403"> IntegerLiteralHexFirst,</span> <span class="line" id="L404"> IntegerLiteral,</span> <span class="line" id="L405"> IntegerSuffix,</span> <span class="line" id="L406"> IntegerSuffixU,</span> <span class="line" id="L407"> IntegerSuffixL,</span> <span class="line" id="L408"> IntegerSuffixLL,</span> <span class="line" id="L409"> IntegerSuffixUL,</span> <span class="line" id="L410"> FloatFraction,</span> <span class="line" id="L411"> FloatFractionHex,</span> <span class="line" id="L412"> FloatExponent,</span> <span class="line" id="L413"> FloatExponentDigits,</span> <span class="line" id="L414"> FloatSuffix,</span> <span class="line" id="L415"> } = .Start;</span> <span class="line" id="L416"> <span class="tok-kw">var</span> string = <span class="tok-null">false</span>;</span> <span class="line" id="L417"> <span class="tok-kw">var</span> counter: <span class="tok-type">u32</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L418"> <span class="tok-kw">while</span> (self.index < self.buffer.len) : (self.index += <span class="tok-number">1</span>) {</span> <span class="line" id="L419"> <span class="tok-kw">const</span> c = self.buffer[self.index];</span> <span class="line" id="L420"> <span class="tok-kw">switch</span> (state) {</span> <span class="line" id="L421"> .Start => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L422"> <span class="tok-str">'\n'</span> => {</span> <span class="line" id="L423"> self.pp_directive = <span class="tok-null">false</span>;</span> <span class="line" id="L424"> result.id = .Nl;</span> <span class="line" id="L425"> self.index += <span class="tok-number">1</span>;</span> <span class="line" id="L426"> <span class="tok-kw">break</span>;</span> <span class="line" id="L427"> },</span> <span class="line" id="L428"> <span class="tok-str">'\r'</span> => {</span> <span class="line" id="L429"> state = .Cr;</span> <span class="line" id="L430"> },</span> <span class="line" id="L431"> <span class="tok-str">'"'</span> => {</span> <span class="line" id="L432"> result.id = .{ .StringLiteral = .none };</span> <span class="line" id="L433"> state = .StringLiteral;</span> <span class="line" id="L434"> },</span> <span class="line" id="L435"> <span class="tok-str">'\''</span> => {</span> <span class="line" id="L436"> result.id = .{ .CharLiteral = .none };</span> <span class="line" id="L437"> state = .CharLiteralStart;</span> <span class="line" id="L438"> },</span> <span class="line" id="L439"> <span class="tok-str">'u'</span> => {</span> <span class="line" id="L440"> state = .u;</span> <span class="line" id="L441"> },</span> <span class="line" id="L442"> <span class="tok-str">'U'</span> => {</span> <span class="line" id="L443"> state = .U;</span> <span class="line" id="L444"> },</span> <span class="line" id="L445"> <span class="tok-str">'L'</span> => {</span> <span class="line" id="L446"> state = .L;</span> <span class="line" id="L447"> },</span> <span class="line" id="L448"> <span class="tok-str">'a'</span>...<span class="tok-str">'t'</span>, <span class="tok-str">'v'</span>...<span class="tok-str">'z'</span>, <span class="tok-str">'A'</span>...<span class="tok-str">'K'</span>, <span class="tok-str">'M'</span>...<span class="tok-str">'T'</span>, <span class="tok-str">'V'</span>...<span class="tok-str">'Z'</span>, <span class="tok-str">'_'</span>, <span class="tok-str">'$'</span> => {</span> <span class="line" id="L449"> state = .Identifier;</span> <span class="line" id="L450"> },</span> <span class="line" id="L451"> <span class="tok-str">'='</span> => {</span> <span class="line" id="L452"> state = .Equal;</span> <span class="line" id="L453"> },</span> <span class="line" id="L454"> <span class="tok-str">'!'</span> => {</span> <span class="line" id="L455"> state = .Bang;</span> <span class="line" id="L456"> },</span> <span class="line" id="L457"> <span class="tok-str">'\|'</span> => {</span> <span class="line" id="L458"> state = .Pipe;</span> <span class="line" id="L459"> },</span> <span class="line" id="L460"> <span class="tok-str">'('</span> => {</span> <span class="line" id="L461"> result.id = .LParen;</span> <span class="line" id="L462"> self.index += <span class="tok-number">1</span>;</span> <span class="line" id="L463"> <span class="tok-kw">break</span>;</span> <span class="line" id="L464"> },</span> <span class="line" id="L465"> <span class="tok-str">')'</span> => {</span> <span class="line" id="L466"> result.id = .RParen;</span> <span class="line" id="L467"> self.index += <span class="tok-number">1</span>;</span> <span class="line" id="L468"> <span class="tok-kw">break</span>;</span> <span class="line" id="L469"> },</span> <span class="line" id="L470"> <span class="tok-str">'['</span> => {</span> <span class="line" id="L471"> result.id = .LBracket;</span> <span class="line" id="L472"> self.index += <span class="tok-number">1</span>;</span> <span class="line" id="L473"> <span class="tok-kw">break</span>;</span> <span class="line" id="L474"> },</span> <span class="line" id="L475"> <span class="tok-str">']'</span> => {</span> <span class="line" id="L476"> result.id = .RBracket;</span> <span class="line" id="L477"> self.index += <span class="tok-number">1</span>;</span> <span class="line" id="L478"> <span class="tok-kw">break</span>;</span> <span class="line" id="L479"> },</span> <span class="line" id="L480"> <span class="tok-str">';'</span> => {</span> <span class="line" id="L481"> result.id = .Semicolon;</span> <span class="line" id="L482"> self.index += <span class="tok-number">1</span>;</span> <span class="line" id="L483"> <span class="tok-kw">break</span>;</span> <span class="line" id="L484"> },</span> <span class="line" id="L485"> <span class="tok-str">','</span> => {</span> <span class="line" id="L486"> result.id = .Comma;</span> <span class="line" id="L487"> self.index += <span class="tok-number">1</span>;</span> <span class="line" id="L488"> <span class="tok-kw">break</span>;</span> <span class="line" id="L489"> },</span> <span class="line" id="L490"> <span class="tok-str">'?'</span> => {</span> <span class="line" id="L491"> result.id = .QuestionMark;</span> <span class="line" id="L492"> self.index += <span class="tok-number">1</span>;</span> <span class="line" id="L493"> <span class="tok-kw">break</span>;</span> <span class="line" id="L494"> },</span> <span class="line" id="L495"> <span class="tok-str">':'</span> => {</span> <span class="line" id="L496"> result.id = .Colon;</span> <span class="line" id="L497"> self.index += <span class="tok-number">1</span>;</span> <span class="line" id="L498"> <span class="tok-kw">break</span>;</span> <span class="line" id="L499"> },</span> <span class="line" id="L500"> <span class="tok-str">'%'</span> => {</span> <span class="line" id="L501"> state = .Percent;</span> <span class="line" id="L502"> },</span> <span class="line" id="L503"> <span class="tok-str">''</span> => {</span> <span class="line" id="L504"> state = .Asterisk;</span> <span class="line" id="L505"> },</span> <span class="line" id="L506"> <span class="tok-str">'+'</span> => {</span> <span class="line" id="L507"> state = .Plus;</span> <span class="line" id="L508"> },</span> <span class="line" id="L509"> <span class="tok-str">'<'</span> => {</span> <span class="line" id="L510"> <span class="tok-kw">if</span> (self.prev_tok_id == .Keyword_include)</span> <span class="line" id="L511"> state = .MacroString</span> <span class="line" id="L512"> <span class="tok-kw">else</span></span> <span class="line" id="L513"> state = .AngleBracketLeft;</span> <span class="line" id="L514"> },</span> <span class="line" id="L515"> <span class="tok-str">'>'</span> => {</span> <span class="line" id="L516"> state = .AngleBracketRight;</span> <span class="line" id="L517"> },</span> <span class="line" id="L518"> <span class="tok-str">'^'</span> => {</span> <span class="line" id="L519"> state = .Caret;</span> <span class="line" id="L520"> },</span> <span class="line" id="L521"> <span class="tok-str">'{'</span> => {</span> <span class="line" id="L522"> result.id = .LBrace;</span> <span class="line" id="L523"> self.index += <span class="tok-number">1</span>;</span> <span class="line" id="L524"> <span class="tok-kw">break</span>;</span> <span class="line" id="L525"> },</span> <span class="line" id="L526"> <span class="tok-str">'}'</span> => {</span> <span class="line" id="L527"> result.id = .RBrace;</span> <span class="line" id="L528"> self.index += <span class="tok-number">1</span>;</span> <span class="line" id="L529"> <span class="tok-kw">break</span>;</span> <span class="line" id="L530"> },</span> <span class="line" id="L531"> <span class="tok-str">'~'</span> => {</span> <span class="line" id="L532"> result.id = .Tilde;</span> <span class="line" id="L533"> self.index += <span class="tok-number">1</span>;</span> <span class="line" id="L534"> <span class="tok-kw">break</span>;</span> <span class="line" id="L535"> },</span> <span class="line" id="L536"> <span class="tok-str">'.'</span> => {</span> <span class="line" id="L537"> state = .Period;</span> <span class="line" id="L538"> },</span> <span class="line" id="L539"> <span class="tok-str">'-'</span> => {</span> <span class="line" id="L540"> state = .Minus;</span> <span class="line" id="L541"> },</span> <span class="line" id="L542"> <span class="tok-str">'/'</span> => {</span> <span class="line" id="L543"> state = .Slash;</span> <span class="line" id="L544"> },</span> <span class="line" id="L545"> <span class="tok-str">'&'</span> => {</span> <span class="line" id="L546"> state = .Ampersand;</span> <span class="line" id="L547"> },</span> <span class="line" id="L548"> <span class="tok-str">'#'</span> => {</span> <span class="line" id="L549"> state = .Hash;</span> <span class="line" id="L550"> },</span> <span class="line" id="L551"> <span class="tok-str">'0'</span> => {</span> <span class="line" id="L552"> state = .Zero;</span> <span class="line" id="L553"> },</span> <span class="line" id="L554"> <span class="tok-str">'1'</span>...<span class="tok-str">'9'</span> => {</span> <span class="line" id="L555"> state = .IntegerLiteral;</span> <span class="line" id="L556"> },</span> <span class="line" id="L557"> <span class="tok-str">'\\'</span> => {</span> <span class="line" id="L558"> state = .BackSlash;</span> <span class="line" id="L559"> },</span> <span class="line" id="L560"> <span class="tok-str">'\t'</span>, <span class="tok-str">'\x0B'</span>, <span class="tok-str">'\x0C'</span>, <span class="tok-str">' '</span> => {</span> <span class="line" id="L561"> result.start = self.index + <span class="tok-number">1</span>;</span> <span class="line" id="L562"> },</span> <span class="line" id="L563"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L564"> <span class="tok-comment">// TODO handle invalid bytes better</span> </span> <span class="line" id="L565"> result.id = .Invalid;</span> <span class="line" id="L566"> self.index += <span class="tok-number">1</span>;</span> <span class="line" id="L567"> <span class="tok-kw">break</span>;</span> <span class="line" id="L568"> },</span> <span class="line" id="L569"> },</span> <span class="line" id="L570"> .Cr => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L571"> <span class="tok-str">'\n'</span> => {</span> <span class="line" id="L572"> self.pp_directive = <span class="tok-null">false</span>;</span> <span class="line" id="L573"> result.id = .Nl;</span> <span class="line" id="L574"> self.index += <span class="tok-number">1</span>;</span> <span class="line" id="L575"> <span class="tok-kw">break</span>;</span> <span class="line" id="L576"> },</span> <span class="line" id="L577"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L578"> result.id = .Invalid;</span> <span class="line" id="L579"> <span class="tok-kw">break</span>;</span> <span class="line" id="L580"> },</span> <span class="line" id="L581"> },</span> <span class="line" id="L582"> .BackSlash => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L583"> <span class="tok-str">'\n'</span> => {</span> <span class="line" id="L584"> result.start = self.index + <span class="tok-number">1</span>;</span> <span class="line" id="L585"> state = .Start;</span> <span class="line" id="L586"> },</span> <span class="line" id="L587"> <span class="tok-str">'\r'</span> => {</span> <span class="line" id="L588"> state = .BackSlashCr;</span> <span class="line" id="L589"> },</span> <span class="line" id="L590"> <span class="tok-str">'\t'</span>, <span class="tok-str">'\x0B'</span>, <span class="tok-str">'\x0C'</span>, <span class="tok-str">' '</span> => {</span> <span class="line" id="L591"> <span class="tok-comment">// TODO warn</span> </span> <span class="line" id="L592"> },</span> <span class="line" id="L593"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L594"> result.id = .Invalid;</span> <span class="line" id="L595"> <span class="tok-kw">break</span>;</span> <span class="line" id="L596"> },</span> <span class="line" id="L597"> },</span> <span class="line" id="L598"> .BackSlashCr => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L599"> <span class="tok-str">'\n'</span> => {</span> <span class="line" id="L600"> result.start = self.index + <span class="tok-number">1</span>;</span> <span class="line" id="L601"> state = .Start;</span> <span class="line" id="L602"> },</span> <span class="line" id="L603"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L604"> result.id = .Invalid;</span> <span class="line" id="L605"> <span class="tok-kw">break</span>;</span> <span class="line" id="L606"> },</span> <span class="line" id="L607"> },</span> <span class="line" id="L608"> .u => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L609"> <span class="tok-str">'8'</span> => {</span> <span class="line" id="L610"> state = .<span class="tok-type">u8</span>;</span> <span class="line" id="L611"> },</span> <span class="line" id="L612"> <span class="tok-str">'\''</span> => {</span> <span class="line" id="L613"> result.id = .{ .CharLiteral = .utf_16 };</span> <span class="line" id="L614"> state = .CharLiteralStart;</span> <span class="line" id="L615"> },</span> <span class="line" id="L616"> <span class="tok-str">'\"'</span> => {</span> <span class="line" id="L617"> result.id = .{ .StringLiteral = .utf_16 };</span> <span class="line" id="L618"> state = .StringLiteral;</span> <span class="line" id="L619"> },</span> <span class="line" id="L620"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L621"> self.index -= <span class="tok-number">1</span>;</span> <span class="line" id="L622"> state = .Identifier;</span> <span class="line" id="L623"> },</span> <span class="line" id="L624"> },</span> <span class="line" id="L625"> .<span class="tok-type">u8</span> => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L626"> <span class="tok-str">'\"'</span> => {</span> <span class="line" id="L627"> result.id = .{ .StringLiteral = .utf_8 };</span> <span class="line" id="L628"> state = .StringLiteral;</span> <span class="line" id="L629"> },</span> <span class="line" id="L630"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L631"> self.index -= <span class="tok-number">1</span>;</span> <span class="line" id="L632"> state = .Identifier;</span> <span class="line" id="L633"> },</span> <span class="line" id="L634"> },</span> <span class="line" id="L635"> .U => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L636"> <span class="tok-str">'\''</span> => {</span> <span class="line" id="L637"> result.id = .{ .CharLiteral = .utf_32 };</span> <span class="line" id="L638"> state = .CharLiteralStart;</span> <span class="line" id="L639"> },</span> <span class="line" id="L640"> <span class="tok-str">'\"'</span> => {</span> <span class="line" id="L641"> result.id = .{ .StringLiteral = .utf_32 };</span> <span class="line" id="L642"> state = .StringLiteral;</span> <span class="line" id="L643"> },</span> <span class="line" id="L644"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L645"> self.index -= <span class="tok-number">1</span>;</span> <span class="line" id="L646"> state = .Identifier;</span> <span class="line" id="L647"> },</span> <span class="line" id="L648"> },</span> <span class="line" id="L649"> .L => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L650"> <span class="tok-str">'\''</span> => {</span> <span class="line" id="L651"> result.id = .{ .CharLiteral = .wide };</span> <span class="line" id="L652"> state = .CharLiteralStart;</span> <span class="line" id="L653"> },</span> <span class="line" id="L654"> <span class="tok-str">'\"'</span> => {</span> <span class="line" id="L655"> result.id = .{ .StringLiteral = .wide };</span> <span class="line" id="L656"> state = .StringLiteral;</span> <span class="line" id="L657"> },</span> <span class="line" id="L658"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L659"> self.index -= <span class="tok-number">1</span>;</span> <span class="line" id="L660"> state = .Identifier;</span> <span class="line" id="L661"> },</span> <span class="line" id="L662"> },</span> <span class="line" id="L663"> .StringLiteral => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L664"> <span class="tok-str">'\\'</span> => {</span> <span class="line" id="L665"> string = <span class="tok-null">true</span>;</span> <span class="line" id="L666"> state = .EscapeSequence;</span> <span class="line" id="L667"> },</span> <span class="line" id="L668"> <span class="tok-str">'"'</span> => {</span> <span class="line" id="L669"> self.index += <span class="tok-number">1</span>;</span> <span class="line" id="L670"> <span class="tok-kw">break</span>;</span> <span class="line" id="L671"> },</span> <span class="line" id="L672"> <span class="tok-str">'\n'</span>, <span class="tok-str">'\r'</span> => {</span> <span class="line" id="L673"> result.id = .Invalid;</span> <span class="line" id="L674"> <span class="tok-kw">break</span>;</span> <span class="line" id="L675"> },</span> <span class="line" id="L676"> <span class="tok-kw">else</span> => {},</span> <span class="line" id="L677"> },</span> <span class="line" id="L678"> .CharLiteralStart => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L679"> <span class="tok-str">'\\'</span> => {</span> <span class="line" id="L680"> string = <span class="tok-null">false</span>;</span> <span class="line" id="L681"> state = .EscapeSequence;</span> <span class="line" id="L682"> },</span> <span class="line" id="L683"> <span class="tok-str">'\''</span>, <span class="tok-str">'\n'</span> => {</span> <span class="line" id="L684"> result.id = .Invalid;</span> <span class="line" id="L685"> <span class="tok-kw">break</span>;</span> <span class="line" id="L686"> },</span> <span class="line" id="L687"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L688"> state = .CharLiteral;</span> <span class="line" id="L689"> },</span> <span class="line" id="L690"> },</span> <span class="line" id="L691"> .CharLiteral => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L692"> <span class="tok-str">'\\'</span> => {</span> <span class="line" id="L693"> string = <span class="tok-null">false</span>;</span> <span class="line" id="L694"> state = .EscapeSequence;</span> <span class="line" id="L695"> },</span> <span class="line" id="L696"> <span class="tok-str">'\''</span> => {</span> <span class="line" id="L697"> self.index += <span class="tok-number">1</span>;</span> <span class="line" id="L698"> <span class="tok-kw">break</span>;</span> <span class="line" id="L699"> },</span> <span class="line" id="L700"> <span class="tok-str">'\n'</span> => {</span> <span class="line" id="L701"> result.id = .Invalid;</span> <span class="line" id="L702"> <span class="tok-kw">break</span>;</span> <span class="line" id="L703"> },</span> <span class="line" id="L704"> <span class="tok-kw">else</span> => {},</span> <span class="line" id="L705"> },</span> <span class="line" id="L706"> .EscapeSequence => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L707"> <span class="tok-str">'\''</span>, <span class="tok-str">'"'</span>, <span class="tok-str">'?'</span>, <span class="tok-str">'\\'</span>, <span class="tok-str">'a'</span>, <span class="tok-str">'b'</span>, <span class="tok-str">'f'</span>, <span class="tok-str">'n'</span>, <span class="tok-str">'r'</span>, <span class="tok-str">'t'</span>, <span class="tok-str">'v'</span>, <span class="tok-str">'\n'</span> => {</span> <span class="line" id="L708"> state = <span class="tok-kw">if</span> (string) .StringLiteral <span class="tok-kw">else</span> .CharLiteral;</span> <span class="line" id="L709"> },</span> <span class="line" id="L710"> <span class="tok-str">'\r'</span> => {</span> <span class="line" id="L711"> state = .CrEscape;</span> <span class="line" id="L712"> },</span> <span class="line" id="L713"> <span class="tok-str">'0'</span>...<span class="tok-str">'7'</span> => {</span> <span class="line" id="L714"> counter = <span class="tok-number">1</span>;</span> <span class="line" id="L715"> state = .OctalEscape;</span> <span class="line" id="L716"> },</span> <span class="line" id="L717"> <span class="tok-str">'x'</span> => {</span> <span class="line" id="L718"> state = .HexEscape;</span> <span class="line" id="L719"> },</span> <span class="line" id="L720"> <span class="tok-str">'u'</span> => {</span> <span class="line" id="L721"> counter = <span class="tok-number">4</span>;</span> <span class="line" id="L722"> state = .OctalEscape;</span> <span class="line" id="L723"> },</span> <span class="line" id="L724"> <span class="tok-str">'U'</span> => {</span> <span class="line" id="L725"> counter = <span class="tok-number">8</span>;</span> <span class="line" id="L726"> state = .OctalEscape;</span> <span class="line" id="L727"> },</span> <span class="line" id="L728"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L729"> result.id = .Invalid;</span> <span class="line" id="L730"> <span class="tok-kw">break</span>;</span> <span class="line" id="L731"> },</span> <span class="line" id="L732"> },</span> <span class="line" id="L733"> .CrEscape => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L734"> <span class="tok-str">'\n'</span> => {</span> <span class="line" id="L735"> state = <span class="tok-kw">if</span> (string) .StringLiteral <span class="tok-kw">else</span> .CharLiteral;</span> <span class="line" id="L736"> },</span> <span class="line" id="L737"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L738"> result.id = .Invalid;</span> <span class="line" id="L739"> <span class="tok-kw">break</span>;</span> <span class="line" id="L740"> },</span> <span class="line" id="L741"> },</span> <span class="line" id="L742"> .OctalEscape => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L743"> <span class="tok-str">'0'</span>...<span class="tok-str">'7'</span> => {</span> <span class="line" id="L744"> counter += <span class="tok-number">1</span>;</span> <span class="line" id="L745"> <span class="tok-kw">if</span> (counter == <span class="tok-number">3</span>) {</span> <span class="line" id="L746"> state = <span class="tok-kw">if</span> (string) .StringLiteral <span class="tok-kw">else</span> .CharLiteral;</span> <span class="line" id="L747"> }</span> <span class="line" id="L748"> },</span> <span class="line" id="L749"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L750"> self.index -= <span class="tok-number">1</span>;</span> <span class="line" id="L751"> state = <span class="tok-kw">if</span> (string) .StringLiteral <span class="tok-kw">else</span> .CharLiteral;</span> <span class="line" id="L752"> },</span> <span class="line" id="L753"> },</span> <span class="line" id="L754"> .HexEscape => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L755"> <span class="tok-str">'0'</span>...<span class="tok-str">'9'</span>, <span class="tok-str">'a'</span>...<span class="tok-str">'f'</span>, <span class="tok-str">'A'</span>...<span class="tok-str">'F'</span> => {},</span> <span class="line" id="L756"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L757"> self.index -= <span class="tok-number">1</span>;</span> <span class="line" id="L758"> state = <span class="tok-kw">if</span> (string) .StringLiteral <span class="tok-kw">else</span> .CharLiteral;</span> <span class="line" id="L759"> },</span> <span class="line" id="L760"> },</span> <span class="line" id="L761"> .UnicodeEscape => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L762"> <span class="tok-str">'0'</span>...<span class="tok-str">'9'</span>, <span class="tok-str">'a'</span>...<span class="tok-str">'f'</span>, <span class="tok-str">'A'</span>...<span class="tok-str">'F'</span> => {</span> <span class="line" id="L763"> counter -= <span class="tok-number">1</span>;</span> <span class="line" id="L764"> <span class="tok-kw">if</span> (counter == <span class="tok-number">0</span>) {</span> <span class="line" id="L765"> state = <span class="tok-kw">if</span> (string) .StringLiteral <span class="tok-kw">else</span> .CharLiteral;</span> <span class="line" id="L766"> }</span> <span class="line" id="L767"> },</span> <span class="line" id="L768"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L769"> <span class="tok-kw">if</span> (counter != <span class="tok-number">0</span>) {</span> <span class="line" id="L770"> result.id = .Invalid;</span> <span class="line" id="L771"> <span class="tok-kw">break</span>;</span> <span class="line" id="L772"> }</span> <span class="line" id="L773"> self.index -= <span class="tok-number">1</span>;</span> <span class="line" id="L774"> state = <span class="tok-kw">if</span> (string) .StringLiteral <span class="tok-kw">else</span> .CharLiteral;</span> <span class="line" id="L775"> },</span> <span class="line" id="L776"> },</span> <span class="line" id="L777"> .Identifier => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L778"> <span class="tok-str">'a'</span>...<span class="tok-str">'z'</span>, <span class="tok-str">'A'</span>...<span class="tok-str">'Z'</span>, <span class="tok-str">'_'</span>, <span class="tok-str">'0'</span>...<span class="tok-str">'9'</span>, <span class="tok-str">'$'</span> => {},</span> <span class="line" id="L779"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L780"> result.id = Token.getKeyword(self.buffer[result.start..self.index], self.prev_tok_id == .Hash <span class="tok-kw">and</span> !self.pp_directive) <span class="tok-kw">orelse</span> .Identifier;</span> <span class="line" id="L781"> <span class="tok-kw">if</span> (self.prev_tok_id == .Hash)</span> <span class="line" id="L782"> self.pp_directive = <span class="tok-null">true</span>;</span> <span class="line" id="L783"> <span class="tok-kw">break</span>;</span> <span class="line" id="L784"> },</span> <span class="line" id="L785"> },</span> <span class="line" id="L786"> .Equal => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L787"> <span class="tok-str">'='</span> => {</span> <span class="line" id="L788"> result.id = .EqualEqual;</span> <span class="line" id="L789"> self.index += <span class="tok-number">1</span>;</span> <span class="line" id="L790"> <span class="tok-kw">break</span>;</span> <span class="line" id="L791"> },</span> <span class="line" id="L792"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L793"> result.id = .Equal;</span> <span class="line" id="L794"> <span class="tok-kw">break</span>;</span> <span class="line" id="L795"> },</span> <span class="line" id="L796"> },</span> <span class="line" id="L797"> .Bang => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L798"> <span class="tok-str">'='</span> => {</span> <span class="line" id="L799"> result.id = .BangEqual;</span> <span class="line" id="L800"> self.index += <span class="tok-number">1</span>;</span> <span class="line" id="L801"> <span class="tok-kw">break</span>;</span> <span class="line" id="L802"> },</span> <span class="line" id="L803"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L804"> result.id = .Bang;</span> <span class="line" id="L805"> <span class="tok-kw">break</span>;</span> <span class="line" id="L806"> },</span> <span class="line" id="L807"> },</span> <span class="line" id="L808"> .Pipe => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L809"> <span class="tok-str">'='</span> => {</span> <span class="line" id="L810"> result.id = .PipeEqual;</span> <span class="line" id="L811"> self.index += <span class="tok-number">1</span>;</span> <span class="line" id="L812"> <span class="tok-kw">break</span>;</span> <span class="line" id="L813"> },</span> <span class="line" id="L814"> <span class="tok-str">'\|'</span> => {</span> <span class="line" id="L815"> result.id = .PipePipe;</span> <span class="line" id="L816"> self.index += <span class="tok-number">1</span>;</span> <span class="line" id="L817"> <span class="tok-kw">break</span>;</span> <span class="line" id="L818"> },</span> <span class="line" id="L819"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L820"> result.id = .Pipe;</span> <span class="line" id="L821"> <span class="tok-kw">break</span>;</span> <span class="line" id="L822"> },</span> <span class="line" id="L823"> },</span> <span class="line" id="L824"> .Percent => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L825"> <span class="tok-str">'='</span> => {</span> <span class="line" id="L826"> result.id = .PercentEqual;</span> <span class="line" id="L827"> self.index += <span class="tok-number">1</span>;</span> <span class="line" id="L828"> <span class="tok-kw">break</span>;</span> <span class="line" id="L829"> },</span> <span class="line" id="L830"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L831"> result.id = .Percent;</span> <span class="line" id="L832"> <span class="tok-kw">break</span>;</span> <span class="line" id="L833"> },</span> <span class="line" id="L834"> },</span> <span class="line" id="L835"> .Asterisk => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L836"> <span class="tok-str">'='</span> => {</span> <span class="line" id="L837"> result.id = .AsteriskEqual;</span> <span class="line" id="L838"> self.index += <span class="tok-number">1</span>;</span> <span class="line" id="L839"> <span class="tok-kw">break</span>;</span> <span class="line" id="L840"> },</span> <span class="line" id="L841"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L842"> result.id = .Asterisk;</span> <span class="line" id="L843"> <span class="tok-kw">break</span>;</span> <span class="line" id="L844"> },</span> <span class="line" id="L845"> },</span> <span class="line" id="L846"> .Plus => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L847"> <span class="tok-str">'='</span> => {</span> <span class="line" id="L848"> result.id = .PlusEqual;</span> <span class="line" id="L849"> self.index += <span class="tok-number">1</span>;</span> <span class="line" id="L850"> <span class="tok-kw">break</span>;</span> <span class="line" id="L851"> },</span> <span class="line" id="L852"> <span class="tok-str">'+'</span> => {</span> <span class="line" id="L853"> result.id = .PlusPlus;</span> <span class="line" id="L854"> self.index += <span class="tok-number">1</span>;</span> <span class="line" id="L855"> <span class="tok-kw">break</span>;</span> <span class="line" id="L856"> },</span> <span class="line" id="L857"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L858"> result.id = .Plus;</span> <span class="line" id="L859"> <span class="tok-kw">break</span>;</span> <span class="line" id="L860"> },</span> <span class="line" id="L861"> },</span> <span class="line" id="L862"> .MacroString => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L863"> <span class="tok-str">'>'</span> => {</span> <span class="line" id="L864"> result.id = .MacroString;</span> <span class="line" id="L865"> self.index += <span class="tok-number">1</span>;</span> <span class="line" id="L866"> <span class="tok-kw">break</span>;</span> <span class="line" id="L867"> },</span> <span class="line" id="L868"> <span class="tok-kw">else</span> => {},</span> <span class="line" id="L869"> },</span> <span class="line" id="L870"> .AngleBracketLeft => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L871"> <span class="tok-str">'<'</span> => {</span> <span class="line" id="L872"> state = .AngleBracketAngleBracketLeft;</span> <span class="line" id="L873"> },</span> <span class="line" id="L874"> <span class="tok-str">'='</span> => {</span> <span class="line" id="L875"> result.id = .AngleBracketLeftEqual;</span> <span class="line" id="L876"> self.index += <span class="tok-number">1</span>;</span> <span class="line" id="L877"> <span class="tok-kw">break</span>;</span> <span class="line" id="L878"> },</span> <span class="line" id="L879"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L880"> result.id = .AngleBracketLeft;</span> <span class="line" id="L881"> <span class="tok-kw">break</span>;</span> <span class="line" id="L882"> },</span> <span class="line" id="L883"> },</span> <span class="line" id="L884"> .AngleBracketAngleBracketLeft => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L885"> <span class="tok-str">'='</span> => {</span> <span class="line" id="L886"> result.id = .AngleBracketAngleBracketLeftEqual;</span> <span class="line" id="L887"> self.index += <span class="tok-number">1</span>;</span> <span class="line" id="L888"> <span class="tok-kw">break</span>;</span> <span class="line" id="L889"> },</span> <span class="line" id="L890"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L891"> result.id = .AngleBracketAngleBracketLeft;</span> <span class="line" id="L892"> <span class="tok-kw">break</span>;</span> <span class="line" id="L893"> },</span> <span class="line" id="L894"> },</span> <span class="line" id="L895"> .AngleBracketRight => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L896"> <span class="tok-str">'>'</span> => {</span> <span class="line" id="L897"> state = .AngleBracketAngleBracketRight;</span> <span class="line" id="L898"> },</span> <span class="line" id="L899"> <span class="tok-str">'='</span> => {</span> <span class="line" id="L900"> result.id = .AngleBracketRightEqual;</span> <span class="line" id="L901"> self.index += <span class="tok-number">1</span>;</span> <span class="line" id="L902"> <span class="tok-kw">break</span>;</span> <span class="line" id="L903"> },</span> <span class="line" id="L904"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L905"> result.id = .AngleBracketRight;</span> <span class="line" id="L906"> <span class="tok-kw">break</span>;</span> <span class="line" id="L907"> },</span> <span class="line" id="L908"> },</span> <span class="line" id="L909"> .AngleBracketAngleBracketRight => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L910"> <span class="tok-str">'='</span> => {</span> <span class="line" id="L911"> result.id = .AngleBracketAngleBracketRightEqual;</span> <span class="line" id="L912"> self.index += <span class="tok-number">1</span>;</span> <span class="line" id="L913"> <span class="tok-kw">break</span>;</span> <span class="line" id="L914"> },</span> <span class="line" id="L915"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L916"> result.id = .AngleBracketAngleBracketRight;</span> <span class="line" id="L917"> <span class="tok-kw">break</span>;</span> <span class="line" id="L918"> },</span> <span class="line" id="L919"> },</span> <span class="line" id="L920"> .Caret => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L921"> <span class="tok-str">'='</span> => {</span> <span class="line" id="L922"> result.id = .CaretEqual;</span> <span class="line" id="L923"> self.index += <span class="tok-number">1</span>;</span> <span class="line" id="L924"> <span class="tok-kw">break</span>;</span> <span class="line" id="L925"> },</span> <span class="line" id="L926"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L927"> result.id = .Caret;</span> <span class="line" id="L928"> <span class="tok-kw">break</span>;</span> <span class="line" id="L929"> },</span> <span class="line" id="L930"> },</span> <span class="line" id="L931"> .Period => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L932"> <span class="tok-str">'.'</span> => {</span> <span class="line" id="L933"> state = .Period2;</span> <span class="line" id="L934"> },</span> <span class="line" id="L935"> <span class="tok-str">'0'</span>...<span class="tok-str">'9'</span> => {</span> <span class="line" id="L936"> state = .FloatFraction;</span> <span class="line" id="L937"> },</span> <span class="line" id="L938"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L939"> result.id = .Period;</span> <span class="line" id="L940"> <span class="tok-kw">break</span>;</span> <span class="line" id="L941"> },</span> <span class="line" id="L942"> },</span> <span class="line" id="L943"> .Period2 => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L944"> <span class="tok-str">'.'</span> => {</span> <span class="line" id="L945"> result.id = .Ellipsis;</span> <span class="line" id="L946"> self.index += <span class="tok-number">1</span>;</span> <span class="line" id="L947"> <span class="tok-kw">break</span>;</span> <span class="line" id="L948"> },</span> <span class="line" id="L949"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L950"> result.id = .Period;</span> <span class="line" id="L951"> self.index -= <span class="tok-number">1</span>;</span> <span class="line" id="L952"> <span class="tok-kw">break</span>;</span> <span class="line" id="L953"> },</span> <span class="line" id="L954"> },</span> <span class="line" id="L955"> .Minus => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L956"> <span class="tok-str">'>'</span> => {</span> <span class="line" id="L957"> result.id = .Arrow;</span> <span class="line" id="L958"> self.index += <span class="tok-number">1</span>;</span> <span class="line" id="L959"> <span class="tok-kw">break</span>;</span> <span class="line" id="L960"> },</span> <span class="line" id="L961"> <span class="tok-str">'='</span> => {</span> <span class="line" id="L962"> result.id = .MinusEqual;</span> <span class="line" id="L963"> self.index += <span class="tok-number">1</span>;</span> <span class="line" id="L964"> <span class="tok-kw">break</span>;</span> <span class="line" id="L965"> },</span> <span class="line" id="L966"> <span class="tok-str">'-'</span> => {</span> <span class="line" id="L967"> result.id = .MinusMinus;</span> <span class="line" id="L968"> self.index += <span class="tok-number">1</span>;</span> <span class="line" id="L969"> <span class="tok-kw">break</span>;</span> <span class="line" id="L970"> },</span> <span class="line" id="L971"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L972"> result.id = .Minus;</span> <span class="line" id="L973"> <span class="tok-kw">break</span>;</span> <span class="line" id="L974"> },</span> <span class="line" id="L975"> },</span> <span class="line" id="L976"> .Slash => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L977"> <span class="tok-str">'/'</span> => {</span> <span class="line" id="L978"> state = .LineComment;</span> <span class="line" id="L979"> },</span> <span class="line" id="L980"> <span class="tok-str">''</span> => {</span> <span class="line" id="L981"> state = .MultiLineComment;</span> <span class="line" id="L982"> },</span> <span class="line" id="L983"> <span class="tok-str">'='</span> => {</span> <span class="line" id="L984"> result.id = .SlashEqual;</span> <span class="line" id="L985"> self.index += <span class="tok-number">1</span>;</span> <span class="line" id="L986"> <span class="tok-kw">break</span>;</span> <span class="line" id="L987"> },</span> <span class="line" id="L988"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L989"> result.id = .Slash;</span> <span class="line" id="L990"> <span class="tok-kw">break</span>;</span> <span class="line" id="L991"> },</span> <span class="line" id="L992"> },</span> <span class="line" id="L993"> .Ampersand => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L994"> <span class="tok-str">'&'</span> => {</span> <span class="line" id="L995"> result.id = .AmpersandAmpersand;</span> <span class="line" id="L996"> self.index += <span class="tok-number">1</span>;</span> <span class="line" id="L997"> <span class="tok-kw">break</span>;</span> <span class="line" id="L998"> },</span> <span class="line" id="L999"> <span class="tok-str">'='</span> => {</span> <span class="line" id="L1000"> result.id = .AmpersandEqual;</span> <span class="line" id="L1001"> self.index += <span class="tok-number">1</span>;</span> <span class="line" id="L1002"> <span class="tok-kw">break</span>;</span> <span class="line" id="L1003"> },</span> <span class="line" id="L1004"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L1005"> result.id = .Ampersand;</span> <span class="line" id="L1006"> <span class="tok-kw">break</span>;</span> <span class="line" id="L1007"> },</span> <span class="line" id="L1008"> },</span> <span class="line" id="L1009"> .Hash => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L1010"> <span class="tok-str">'#'</span> => {</span> <span class="line" id="L1011"> result.id = .HashHash;</span> <span class="line" id="L1012"> self.index += <span class="tok-number">1</span>;</span> <span class="line" id="L1013"> <span class="tok-kw">break</span>;</span> <span class="line" id="L1014"> },</span> <span class="line" id="L1015"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L1016"> result.id = .Hash;</span> <span class="line" id="L1017"> <span class="tok-kw">break</span>;</span> <span class="line" id="L1018"> },</span> <span class="line" id="L1019"> },</span> <span class="line" id="L1020"> .LineComment => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L1021"> <span class="tok-str">'\n'</span> => {</span> <span class="line" id="L1022"> result.id = .LineComment;</span> <span class="line" id="L1023"> <span class="tok-kw">break</span>;</span> <span class="line" id="L1024"> },</span> <span class="line" id="L1025"> <span class="tok-kw">else</span> => {},</span> <span class="line" id="L1026"> },</span> <span class="line" id="L1027"> .MultiLineComment => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L1028"> <span class="tok-str">''</span> => {</span> <span class="line" id="L1029"> state = .MultiLineCommentAsterisk;</span> <span class="line" id="L1030"> },</span> <span class="line" id="L1031"> <span class="tok-kw">else</span> => {},</span> <span class="line" id="L1032"> },</span> <span class="line" id="L1033"> .MultiLineCommentAsterisk => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L1034"> <span class="tok-str">'/'</span> => {</span> <span class="line" id="L1035"> result.id = .MultiLineComment;</span> <span class="line" id="L1036"> self.index += <span class="tok-number">1</span>;</span> <span class="line" id="L1037"> <span class="tok-kw">break</span>;</span> <span class="line" id="L1038"> },</span> <span class="line" id="L1039"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L1040"> state = .MultiLineComment;</span> <span class="line" id="L1041"> },</span> <span class="line" id="L1042"> },</span> <span class="line" id="L1043"> .Zero => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L1044"> <span class="tok-str">'0'</span>...<span class="tok-str">'9'</span> => {</span> <span class="line" id="L1045"> state = .IntegerLiteralOct;</span> <span class="line" id="L1046"> },</span> <span class="line" id="L1047"> <span class="tok-str">'b'</span>, <span class="tok-str">'B'</span> => {</span> <span class="line" id="L1048"> state = .IntegerLiteralBinaryFirst;</span> <span class="line" id="L1049"> },</span> <span class="line" id="L1050"> <span class="tok-str">'x'</span>, <span class="tok-str">'X'</span> => {</span> <span class="line" id="L1051"> state = .IntegerLiteralHexFirst;</span> <span class="line" id="L1052"> },</span> <span class="line" id="L1053"> <span class="tok-str">'.'</span> => {</span> <span class="line" id="L1054"> state = .FloatFraction;</span> <span class="line" id="L1055"> },</span> <span class="line" id="L1056"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L1057"> state = .IntegerSuffix;</span> <span class="line" id="L1058"> self.index -= <span class="tok-number">1</span>;</span> <span class="line" id="L1059"> },</span> <span class="line" id="L1060"> },</span> <span class="line" id="L1061"> .IntegerLiteralOct => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L1062"> <span class="tok-str">'0'</span>...<span class="tok-str">'7'</span> => {},</span> <span class="line" id="L1063"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L1064"> state = .IntegerSuffix;</span> <span class="line" id="L1065"> self.index -= <span class="tok-number">1</span>;</span> <span class="line" id="L1066"> },</span> <span class="line" id="L1067"> },</span> <span class="line" id="L1068"> .IntegerLiteralBinaryFirst => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L1069"> <span class="tok-str">'0'</span>...<span class="tok-str">'7'</span> => state = .IntegerLiteralBinary,</span> <span class="line" id="L1070"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L1071"> result.id = .Invalid;</span> <span class="line" id="L1072"> <span class="tok-kw">break</span>;</span> <span class="line" id="L1073"> },</span> <span class="line" id="L1074"> },</span> <span class="line" id="L1075"> .IntegerLiteralBinary => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L1076"> <span class="tok-str">'0'</span>, <span class="tok-str">'1'</span> => {},</span> <span class="line" id="L1077"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L1078"> state = .IntegerSuffix;</span> <span class="line" id="L1079"> self.index -= <span class="tok-number">1</span>;</span> <span class="line" id="L1080"> },</span> <span class="line" id="L1081"> },</span> <span class="line" id="L1082"> .IntegerLiteralHexFirst => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L1083"> <span class="tok-str">'0'</span>...<span class="tok-str">'9'</span>, <span class="tok-str">'a'</span>...<span class="tok-str">'f'</span>, <span class="tok-str">'A'</span>...<span class="tok-str">'F'</span> => state = .IntegerLiteralHex,</span> <span class="line" id="L1084"> <span class="tok-str">'.'</span> => {</span> <span class="line" id="L1085"> state = .FloatFractionHex;</span> <span class="line" id="L1086"> },</span> <span class="line" id="L1087"> <span class="tok-str">'p'</span>, <span class="tok-str">'P'</span> => {</span> <span class="line" id="L1088"> state = .FloatExponent;</span> <span class="line" id="L1089"> },</span> <span class="line" id="L1090"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L1091"> result.id = .Invalid;</span> <span class="line" id="L1092"> <span class="tok-kw">break</span>;</span> <span class="line" id="L1093"> },</span> <span class="line" id="L1094"> },</span> <span class="line" id="L1095"> .IntegerLiteralHex => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L1096"> <span class="tok-str">'0'</span>...<span class="tok-str">'9'</span>, <span class="tok-str">'a'</span>...<span class="tok-str">'f'</span>, <span class="tok-str">'A'</span>...<span class="tok-str">'F'</span> => {},</span> <span class="line" id="L1097"> <span class="tok-str">'.'</span> => {</span> <span class="line" id="L1098"> state = .FloatFractionHex;</span> <span class="line" id="L1099"> },</span> <span class="line" id="L1100"> <span class="tok-str">'p'</span>, <span class="tok-str">'P'</span> => {</span> <span class="line" id="L1101"> state = .FloatExponent;</span> <span class="line" id="L1102"> },</span> <span class="line" id="L1103"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L1104"> state = .IntegerSuffix;</span> <span class="line" id="L1105"> self.index -= <span class="tok-number">1</span>;</span> <span class="line" id="L1106"> },</span> <span class="line" id="L1107"> },</span> <span class="line" id="L1108"> .IntegerLiteral => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L1109"> <span class="tok-str">'0'</span>...<span class="tok-str">'9'</span> => {},</span> <span class="line" id="L1110"> <span class="tok-str">'.'</span> => {</span> <span class="line" id="L1111"> state = .FloatFraction;</span> <span class="line" id="L1112"> },</span> <span class="line" id="L1113"> <span class="tok-str">'e'</span>, <span class="tok-str">'E'</span> => {</span> <span class="line" id="L1114"> state = .FloatExponent;</span> <span class="line" id="L1115"> },</span> <span class="line" id="L1116"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L1117"> state = .IntegerSuffix;</span> <span class="line" id="L1118"> self.index -= <span class="tok-number">1</span>;</span> <span class="line" id="L1119"> },</span> <span class="line" id="L1120"> },</span> <span class="line" id="L1121"> .IntegerSuffix => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L1122"> <span class="tok-str">'u'</span>, <span class="tok-str">'U'</span> => {</span> <span class="line" id="L1123"> state = .IntegerSuffixU;</span> <span class="line" id="L1124"> },</span> <span class="line" id="L1125"> <span class="tok-str">'l'</span>, <span class="tok-str">'L'</span> => {</span> <span class="line" id="L1126"> state = .IntegerSuffixL;</span> <span class="line" id="L1127"> },</span> <span class="line" id="L1128"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L1129"> result.id = .{ .IntegerLiteral = .none };</span> <span class="line" id="L1130"> <span class="tok-kw">break</span>;</span> <span class="line" id="L1131"> },</span> <span class="line" id="L1132"> },</span> <span class="line" id="L1133"> .IntegerSuffixU => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L1134"> <span class="tok-str">'l'</span>, <span class="tok-str">'L'</span> => {</span> <span class="line" id="L1135"> state = .IntegerSuffixUL;</span> <span class="line" id="L1136"> },</span> <span class="line" id="L1137"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L1138"> result.id = .{ .IntegerLiteral = .u };</span> <span class="line" id="L1139"> <span class="tok-kw">break</span>;</span> <span class="line" id="L1140"> },</span> <span class="line" id="L1141"> },</span> <span class="line" id="L1142"> .IntegerSuffixL => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L1143"> <span class="tok-str">'l'</span>, <span class="tok-str">'L'</span> => {</span> <span class="line" id="L1144"> state = .IntegerSuffixLL;</span> <span class="line" id="L1145"> },</span> <span class="line" id="L1146"> <span class="tok-str">'u'</span>, <span class="tok-str">'U'</span> => {</span> <span class="line" id="L1147"> result.id = .{ .IntegerLiteral = .lu };</span> <span class="line" id="L1148"> self.index += <span class="tok-number">1</span>;</span> <span class="line" id="L1149"> <span class="tok-kw">break</span>;</span> <span class="line" id="L1150"> },</span> <span class="line" id="L1151"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L1152"> result.id = .{ .IntegerLiteral = .l };</span> <span class="line" id="L1153"> <span class="tok-kw">break</span>;</span> <span class="line" id="L1154"> },</span> <span class="line" id="L1155"> },</span> <span class="line" id="L1156"> .IntegerSuffixLL => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L1157"> <span class="tok-str">'u'</span>, <span class="tok-str">'U'</span> => {</span> <span class="line" id="L1158"> result.id = .{ .IntegerLiteral = .llu };</span> <span class="line" id="L1159"> self.index += <span class="tok-number">1</span>;</span> <span class="line" id="L1160"> <span class="tok-kw">break</span>;</span> <span class="line" id="L1161"> },</span> <span class="line" id="L1162"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L1163"> result.id = .{ .IntegerLiteral = .ll };</span> <span class="line" id="L1164"> <span class="tok-kw">break</span>;</span> <span class="line" id="L1165"> },</span> <span class="line" id="L1166"> },</span> <span class="line" id="L1167"> .IntegerSuffixUL => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L1168"> <span class="tok-str">'l'</span>, <span class="tok-str">'L'</span> => {</span> <span class="line" id="L1169"> result.id = .{ .IntegerLiteral = .llu };</span> <span class="line" id="L1170"> self.index += <span class="tok-number">1</span>;</span> <span class="line" id="L1171"> <span class="tok-kw">break</span>;</span> <span class="line" id="L1172"> },</span> <span class="line" id="L1173"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L1174"> result.id = .{ .IntegerLiteral = .lu };</span> <span class="line" id="L1175"> <span class="tok-kw">break</span>;</span> <span class="line" id="L1176"> },</span> <span class="line" id="L1177"> },</span> <span class="line" id="L1178"> .FloatFraction => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L1179"> <span class="tok-str">'0'</span>...<span class="tok-str">'9'</span> => {},</span> <span class="line" id="L1180"> <span class="tok-str">'e'</span>, <span class="tok-str">'E'</span> => {</span> <span class="line" id="L1181"> state = .FloatExponent;</span> <span class="line" id="L1182"> },</span> <span class="line" id="L1183"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L1184"> self.index -= <span class="tok-number">1</span>;</span> <span class="line" id="L1185"> state = .FloatSuffix;</span> <span class="line" id="L1186"> },</span> <span class="line" id="L1187"> },</span> <span class="line" id="L1188"> .FloatFractionHex => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L1189"> <span class="tok-str">'0'</span>...<span class="tok-str">'9'</span>, <span class="tok-str">'a'</span>...<span class="tok-str">'f'</span>, <span class="tok-str">'A'</span>...<span class="tok-str">'F'</span> => {},</span> <span class="line" id="L1190"> <span class="tok-str">'p'</span>, <span class="tok-str">'P'</span> => {</span> <span class="line" id="L1191"> state = .FloatExponent;</span> <span class="line" id="L1192"> },</span> <span class="line" id="L1193"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L1194"> result.id = .Invalid;</span> <span class="line" id="L1195"> <span class="tok-kw">break</span>;</span> <span class="line" id="L1196"> },</span> <span class="line" id="L1197"> },</span> <span class="line" id="L1198"> .FloatExponent => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L1199"> <span class="tok-str">'+'</span>, <span class="tok-str">'-'</span> => {</span> <span class="line" id="L1200"> state = .FloatExponentDigits;</span> <span class="line" id="L1201"> },</span> <span class="line" id="L1202"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L1203"> self.index -= <span class="tok-number">1</span>;</span> <span class="line" id="L1204"> state = .FloatExponentDigits;</span> <span class="line" id="L1205"> },</span> <span class="line" id="L1206"> },</span> <span class="line" id="L1207"> .FloatExponentDigits => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L1208"> <span class="tok-str">'0'</span>...<span class="tok-str">'9'</span> => {</span> <span class="line" id="L1209"> counter += <span class="tok-number">1</span>;</span> <span class="line" id="L1210"> },</span> <span class="line" id="L1211"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L1212"> <span class="tok-kw">if</span> (counter == <span class="tok-number">0</span>) {</span> <span class="line" id="L1213"> result.id = .Invalid;</span> <span class="line" id="L1214"> <span class="tok-kw">break</span>;</span> <span class="line" id="L1215"> }</span> <span class="line" id="L1216"> self.index -= <span class="tok-number">1</span>;</span> <span class="line" id="L1217"> state = .FloatSuffix;</span> <span class="line" id="L1218"> },</span> <span class="line" id="L1219"> },</span> <span class="line" id="L1220"> .FloatSuffix => <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L1221"> <span class="tok-str">'l'</span>, <span class="tok-str">'L'</span> => {</span> <span class="line" id="L1222"> result.id = .{ .FloatLiteral = .l };</span> <span class="line" id="L1223"> self.index += <span class="tok-number">1</span>;</span> <span class="line" id="L1224"> <span class="tok-kw">break</span>;</span> <span class="line" id="L1225"> },</span> <span class="line" id="L1226"> <span class="tok-str">'f'</span>, <span class="tok-str">'F'</span> => {</span> <span class="line" id="L1227"> result.id = .{ .FloatLiteral = .f };</span> <span class="line" id="L1228"> self.index += <span class="tok-number">1</span>;</span> <span class="line" id="L1229"> <span class="tok-kw">break</span>;</span> <span class="line" id="L1230"> },</span> <span class="line" id="L1231"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L1232"> result.id = .{ .FloatLiteral = .none };</span> <span class="line" id="L1233"> <span class="tok-kw">break</span>;</span> <span class="line" id="L1234"> },</span> <span class="line" id="L1235"> },</span> <span class="line" id="L1236"> }</span> <span class="line" id="L1237"> } <span class="tok-kw">else</span> <span class="tok-kw">if</span> (self.index == self.buffer.len) {</span> <span class="line" id="L1238"> <span class="tok-kw">switch</span> (state) {</span> <span class="line" id="L1239"> .Start => {},</span> <span class="line" id="L1240"> .u, .<span class="tok-type">u8</span>, .U, .L, .Identifier => {</span> <span class="line" id="L1241"> result.id = Token.getKeyword(self.buffer[result.start..self.index], self.prev_tok_id == .Hash <span class="tok-kw">and</span> !self.pp_directive) <span class="tok-kw">orelse</span> .Identifier;</span> <span class="line" id="L1242"> },</span> <span class="line" id="L1243"></span> <span class="line" id="L1244"> .Cr,</span> <span class="line" id="L1245"> .BackSlash,</span> <span class="line" id="L1246"> .BackSlashCr,</span> <span class="line" id="L1247"> .Period2,</span> <span class="line" id="L1248"> .StringLiteral,</span> <span class="line" id="L1249"> .CharLiteralStart,</span> <span class="line" id="L1250"> .CharLiteral,</span> <span class="line" id="L1251"> .EscapeSequence,</span> <span class="line" id="L1252"> .CrEscape,</span> <span class="line" id="L1253"> .OctalEscape,</span> <span class="line" id="L1254"> .HexEscape,</span> <span class="line" id="L1255"> .UnicodeEscape,</span> <span class="line" id="L1256"> .MultiLineComment,</span> <span class="line" id="L1257"> .MultiLineCommentAsterisk,</span> <span class="line" id="L1258"> .FloatExponent,</span> <span class="line" id="L1259"> .MacroString,</span> <span class="line" id="L1260"> .IntegerLiteralBinaryFirst,</span> <span class="line" id="L1261"> .IntegerLiteralHexFirst,</span> <span class="line" id="L1262"> => result.id = .Invalid,</span> <span class="line" id="L1263"></span> <span class="line" id="L1264"> .FloatExponentDigits => result.id = <span class="tok-kw">if</span> (counter == <span class="tok-number">0</span>) .Invalid <span class="tok-kw">else</span> .{ .FloatLiteral = .none },</span> <span class="line" id="L1265"></span> <span class="line" id="L1266"> .FloatFraction,</span> <span class="line" id="L1267"> .FloatFractionHex,</span> <span class="line" id="L1268"> => result.id = .{ .FloatLiteral = .none },</span> <span class="line" id="L1269"></span> <span class="line" id="L1270"> .IntegerLiteralOct,</span> <span class="line" id="L1271"> .IntegerLiteralBinary,</span> <span class="line" id="L1272"> .IntegerLiteralHex,</span> <span class="line" id="L1273"> .IntegerLiteral,</span> <span class="line" id="L1274"> .IntegerSuffix,</span> <span class="line" id="L1275"> .Zero,</span> <span class="line" id="L1276"> => result.id = .{ .IntegerLiteral = .none },</span> <span class="line" id="L1277"> .IntegerSuffixU => result.id = .{ .IntegerLiteral = .u },</span> <span class="line" id="L1278"> .IntegerSuffixL => result.id = .{ .IntegerLiteral = .l },</span> <span class="line" id="L1279"> .IntegerSuffixLL => result.id = .{ .IntegerLiteral = .ll },</span> <span class="line" id="L1280"> .IntegerSuffixUL => result.id = .{ .IntegerLiteral = .lu },</span> <span class="line" id="L1281"></span> <span class="line" id="L1282"> .FloatSuffix => result.id = .{ .FloatLiteral = .none },</span> <span class="line" id="L1283"> .Equal => result.id = .Equal,</span> <span class="line" id="L1284"> .Bang => result.id = .Bang,</span> <span class="line" id="L1285"> .Minus => result.id = .Minus,</span> <span class="line" id="L1286"> .Slash => result.id = .Slash,</span> <span class="line" id="L1287"> .Ampersand => result.id = .Ampersand,</span> <span class="line" id="L1288"> .Hash => result.id = .Hash,</span> <span class="line" id="L1289"> .Period => result.id = .Period,</span> <span class="line" id="L1290"> .Pipe => result.id = .Pipe,</span> <span class="line" id="L1291"> .AngleBracketAngleBracketRight => result.id = .AngleBracketAngleBracketRight,</span> <span class="line" id="L1292"> .AngleBracketRight => result.id = .AngleBracketRight,</span> <span class="line" id="L1293"> .AngleBracketAngleBracketLeft => result.id = .AngleBracketAngleBracketLeft,</span> <span class="line" id="L1294"> .AngleBracketLeft => result.id = .AngleBracketLeft,</span> <span class="line" id="L1295"> .Plus => result.id = .Plus,</span> <span class="line" id="L1296"> .Percent => result.id = .Percent,</span> <span class="line" id="L1297"> .Caret => result.id = .Caret,</span> <span class="line" id="L1298"> .Asterisk => result.id = .Asterisk,</span> <span class="line" id="L1299"> .LineComment => result.id = .LineComment,</span> <span class="line" id="L1300"> }</span> <span class="line" id="L1301"> }</span> <span class="line" id="L1302"></span> <span class="line" id="L1303"> self.prev_tok_id = result.id;</span> <span class="line" id="L1304"> result.end = self.index;</span> <span class="line" id="L1305"> <span class="tok-kw">return</span> result;</span> <span class="line" id="L1306"> }</span> <span class="line" id="L1307">};</span> <span class="line" id="L1308"></span> <span class="line" id="L1309"><span class="tok-kw">test</span> <span class="tok-str">"operators"</span> {</span> <span class="line" id="L1310"> <span class="tok-kw">try</span> expectTokens(</span> <span class="line" id="L1311"> <span class="tok-str">\\ ! != \| \|\| \|= = ==</span></span> <span class="line" id="L1312"> <span class="tok-str">\\ ( ) { } [ ] . .. ...</span></span> <span class="line" id="L1313"> <span class="tok-str">\\ ^ ^= + ++ += - -- -=</span></span> <span class="line" id="L1314"> <span class="tok-str">\\ * *= % %= -> : ; / /=</span></span> <span class="line" id="L1315"> <span class="tok-str">\\ , & && &= ? < <= <<</span></span> <span class="line" id="L1316"> <span class="tok-str">\\ <<= > >= >> >>= ~ # ##</span></span> <span class="line" id="L1317"> <span class="tok-str">\\</span></span> <span class="line" id="L1318"> , &[_]Token.Id{</span> <span class="line" id="L1319"> .Bang,</span> <span class="line" id="L1320"> .BangEqual,</span> <span class="line" id="L1321"> .Pipe,</span> <span class="line" id="L1322"> .PipePipe,</span> <span class="line" id="L1323"> .PipeEqual,</span> <span class="line" id="L1324"> .Equal,</span> <span class="line" id="L1325"> .EqualEqual,</span> <span class="line" id="L1326"> .Nl,</span> <span class="line" id="L1327"> .LParen,</span> <span class="line" id="L1328"> .RParen,</span> <span class="line" id="L1329"> .LBrace,</span> <span class="line" id="L1330"> .RBrace,</span> <span class="line" id="L1331"> .LBracket,</span> <span class="line" id="L1332"> .RBracket,</span> <span class="line" id="L1333"> .Period,</span> <span class="line" id="L1334"> .Period,</span> <span class="line" id="L1335"> .Period,</span> <span class="line" id="L1336"> .Ellipsis,</span> <span class="line" id="L1337"> .Nl,</span> <span class="line" id="L1338"> .Caret,</span> <span class="line" id="L1339"> .CaretEqual,</span> <span class="line" id="L1340"> .Plus,</span> <span class="line" id="L1341"> .PlusPlus,</span> <span class="line" id="L1342"> .PlusEqual,</span> <span class="line" id="L1343"> .Minus,</span> <span class="line" id="L1344"> .MinusMinus,</span> <span class="line" id="L1345"> .MinusEqual,</span> <span class="line" id="L1346"> .Nl,</span> <span class="line" id="L1347"> .Asterisk,</span> <span class="line" id="L1348"> .AsteriskEqual,</span> <span class="line" id="L1349"> .Percent,</span> <span class="line" id="L1350"> .PercentEqual,</span> <span class="line" id="L1351"> .Arrow,</span> <span class="line" id="L1352"> .Colon,</span> <span class="line" id="L1353"> .Semicolon,</span> <span class="line" id="L1354"> .Slash,</span> <span class="line" id="L1355"> .SlashEqual,</span> <span class="line" id="L1356"> .Nl,</span> <span class="line" id="L1357"> .Comma,</span> <span class="line" id="L1358"> .Ampersand,</span> <span class="line" id="L1359"> .AmpersandAmpersand,</span> <span class="line" id="L1360"> .AmpersandEqual,</span> <span class="line" id="L1361"> .QuestionMark,</span> <span class="line" id="L1362"> .AngleBracketLeft,</span> <span class="line" id="L1363"> .AngleBracketLeftEqual,</span> <span class="line" id="L1364"> .AngleBracketAngleBracketLeft,</span> <span class="line" id="L1365"> .Nl,</span> <span class="line" id="L1366"> .AngleBracketAngleBracketLeftEqual,</span> <span class="line" id="L1367"> .AngleBracketRight,</span> <span class="line" id="L1368"> .AngleBracketRightEqual,</span> <span class="line" id="L1369"> .AngleBracketAngleBracketRight,</span> <span class="line" id="L1370"> .AngleBracketAngleBracketRightEqual,</span> <span class="line" id="L1371"> .Tilde,</span> <span class="line" id="L1372"> .Hash,</span> <span class="line" id="L1373"> .HashHash,</span> <span class="line" id="L1374"> .Nl,</span> <span class="line" id="L1375"> });</span> <span class="line" id="L1376">}</span> <span class="line" id="L1377"></span> <span class="line" id="L1378"><span class="tok-kw">test</span> <span class="tok-str">"keywords"</span> {</span> <span class="line" id="L1379"> <span class="tok-kw">try</span> expectTokens(</span> <span class="line" id="L1380"> <span class="tok-str">\\auto break case char const continue default do</span></span> <span class="line" id="L1381"> <span class="tok-str">\\double else enum extern float for goto if int</span></span> <span class="line" id="L1382"> <span class="tok-str">\\long register return short signed sizeof static</span></span> <span class="line" id="L1383"> <span class="tok-str">\\struct switch typedef union unsigned void volatile</span></span> <span class="line" id="L1384"> <span class="tok-str">\\while _Bool _Complex _Imaginary inline restrict _Alignas</span></span> <span class="line" id="L1385"> <span class="tok-str">\\_Alignof _Atomic _Generic _Noreturn _Static_assert _Thread_local</span></span> <span class="line" id="L1386"> <span class="tok-str">\\</span></span> <span class="line" id="L1387"> , &[_]Token.Id{</span> <span class="line" id="L1388"> .Keyword_auto,</span> <span class="line" id="L1389"> .Keyword_break,</span> <span class="line" id="L1390"> .Keyword_case,</span> <span class="line" id="L1391"> .Keyword_char,</span> <span class="line" id="L1392"> .Keyword_const,</span> <span class="line" id="L1393"> .Keyword_continue,</span> <span class="line" id="L1394"> .Keyword_default,</span> <span class="line" id="L1395"> .Keyword_do,</span> <span class="line" id="L1396"> .Nl,</span> <span class="line" id="L1397"> .Keyword_double,</span> <span class="line" id="L1398"> .Keyword_else,</span> <span class="line" id="L1399"> .Keyword_enum,</span> <span class="line" id="L1400"> .Keyword_extern,</span> <span class="line" id="L1401"> .Keyword_float,</span> <span class="line" id="L1402"> .Keyword_for,</span> <span class="line" id="L1403"> .Keyword_goto,</span> <span class="line" id="L1404"> .Keyword_if,</span> <span class="line" id="L1405"> .Keyword_int,</span> <span class="line" id="L1406"> .Nl,</span> <span class="line" id="L1407"> .Keyword_long,</span> <span class="line" id="L1408"> .Keyword_register,</span> <span class="line" id="L1409"> .Keyword_return,</span> <span class="line" id="L1410"> .Keyword_short,</span> <span class="line" id="L1411"> .Keyword_signed,</span> <span class="line" id="L1412"> .Keyword_sizeof,</span> <span class="line" id="L1413"> .Keyword_static,</span> <span class="line" id="L1414"> .Nl,</span> <span class="line" id="L1415"> .Keyword_struct,</span> <span class="line" id="L1416"> .Keyword_switch,</span> <span class="line" id="L1417"> .Keyword_typedef,</span> <span class="line" id="L1418"> .Keyword_union,</span> <span class="line" id="L1419"> .Keyword_unsigned,</span> <span class="line" id="L1420"> .Keyword_void,</span> <span class="line" id="L1421"> .Keyword_volatile,</span> <span class="line" id="L1422"> .Nl,</span> <span class="line" id="L1423"> .Keyword_while,</span> <span class="line" id="L1424"> .Keyword_bool,</span> <span class="line" id="L1425"> .Keyword_complex,</span> <span class="line" id="L1426"> .Keyword_imaginary,</span> <span class="line" id="L1427"> .Keyword_inline,</span> <span class="line" id="L1428"> .Keyword_restrict,</span> <span class="line" id="L1429"> .Keyword_alignas,</span> <span class="line" id="L1430"> .Nl,</span> <span class="line" id="L1431"> .Keyword_alignof,</span> <span class="line" id="L1432"> .Keyword_atomic,</span> <span class="line" id="L1433"> .Keyword_generic,</span> <span class="line" id="L1434"> .Keyword_noreturn,</span> <span class="line" id="L1435"> .Keyword_static_assert,</span> <span class="line" id="L1436"> .Keyword_thread_local,</span> <span class="line" id="L1437"> .Nl,</span> <span class="line" id="L1438"> });</span> <span class="line" id="L1439">}</span> <span class="line" id="L1440"></span> <span class="line" id="L1441"><span class="tok-kw">test</span> <span class="tok-str">"preprocessor keywords"</span> {</span> <span class="line" id="L1442"> <span class="tok-kw">try</span> expectTokens(</span> <span class="line" id="L1443"> <span class="tok-str">\\#include <test></span></span> <span class="line" id="L1444"> <span class="tok-str">\\#define #include <1</span></span> <span class="line" id="L1445"> <span class="tok-str">\\#ifdef</span></span> <span class="line" id="L1446"> <span class="tok-str">\\#ifndef</span></span> <span class="line" id="L1447"> <span class="tok-str">\\#error</span></span> <span class="line" id="L1448"> <span class="tok-str">\\#pragma</span></span> <span class="line" id="L1449"> <span class="tok-str">\\</span></span> <span class="line" id="L1450"> , &[_]Token.Id{</span> <span class="line" id="L1451"> .Hash,</span> <span class="line" id="L1452"> .Keyword_include,</span> <span class="line" id="L1453"> .MacroString,</span> <span class="line" id="L1454"> .Nl,</span> <span class="line" id="L1455"> .Hash,</span> <span class="line" id="L1456"> .Keyword_define,</span> <span class="line" id="L1457"> .Hash,</span> <span class="line" id="L1458"> .Identifier,</span> <span class="line" id="L1459"> .AngleBracketLeft,</span> <span class="line" id="L1460"> .{ .IntegerLiteral = .none },</span> <span class="line" id="L1461"> .Nl,</span> <span class="line" id="L1462"> .Hash,</span> <span class="line" id="L1463"> .Keyword_ifdef,</span> <span class="line" id="L1464"> .Nl,</span> <span class="line" id="L1465"> .Hash,</span> <span class="line" id="L1466"> .Keyword_ifndef,</span> <span class="line" id="L1467"> .Nl,</span> <span class="line" id="L1468"> .Hash,</span> <span class="line" id="L1469"> .Keyword_error,</span> <span class="line" id="L1470"> .Nl,</span> <span class="line" id="L1471"> .Hash,</span> <span class="line" id="L1472"> .Keyword_pragma,</span> <span class="line" id="L1473"> .Nl,</span> <span class="line" id="L1474"> });</span> <span class="line" id="L1475">}</span> <span class="line" id="L1476"></span> <span class="line" id="L1477"><span class="tok-kw">test</span> <span class="tok-str">"line continuation"</span> {</span> <span class="line" id="L1478"> <span class="tok-kw">try</span> expectTokens(</span> <span class="line" id="L1479"> <span class="tok-str">\\#define foo \</span></span> <span class="line" id="L1480"> <span class="tok-str">\\ bar</span></span> <span class="line" id="L1481"> <span class="tok-str">\\"foo\</span></span> <span class="line" id="L1482"> <span class="tok-str">\\ bar"</span></span> <span class="line" id="L1483"> <span class="tok-str">\\#define "foo"</span></span> <span class="line" id="L1484"> <span class="tok-str">\\ "bar"</span></span> <span class="line" id="L1485"> <span class="tok-str">\\#define "foo" \</span></span> <span class="line" id="L1486"> <span class="tok-str">\\ "bar"</span></span> <span class="line" id="L1487"> , &[_]Token.Id{</span> <span class="line" id="L1488"> .Hash,</span> <span class="line" id="L1489"> .Keyword_define,</span> <span class="line" id="L1490"> .Identifier,</span> <span class="line" id="L1491"> .Identifier,</span> <span class="line" id="L1492"> .Nl,</span> <span class="line" id="L1493"> .{ .StringLiteral = .none },</span> <span class="line" id="L1494"> .Nl,</span> <span class="line" id="L1495"> .Hash,</span> <span class="line" id="L1496"> .Keyword_define,</span> <span class="line" id="L1497"> .{ .StringLiteral = .none },</span> <span class="line" id="L1498"> .Nl,</span> <span class="line" id="L1499"> .{ .StringLiteral = .none },</span> <span class="line" id="L1500"> .Nl,</span> <span class="line" id="L1501"> .Hash,</span> <span class="line" id="L1502"> .Keyword_define,</span> <span class="line" id="L1503"> .{ .StringLiteral = .none },</span> <span class="line" id="L1504"> .{ .StringLiteral = .none },</span> <span class="line" id="L1505"> });</span> <span class="line" id="L1506">}</span> <span class="line" id="L1507"></span> <span class="line" id="L1508"><span class="tok-kw">test</span> <span class="tok-str">"string prefix"</span> {</span> <span class="line" id="L1509"> <span class="tok-kw">try</span> expectTokens(</span> <span class="line" id="L1510"> <span class="tok-str">\\"foo"</span></span> <span class="line" id="L1511"> <span class="tok-str">\\u"foo"</span></span> <span class="line" id="L1512"> <span class="tok-str">\\u8"foo"</span></span> <span class="line" id="L1513"> <span class="tok-str">\\U"foo"</span></span> <span class="line" id="L1514"> <span class="tok-str">\\L"foo"</span></span> <span class="line" id="L1515"> <span class="tok-str">\\'foo'</span></span> <span class="line" id="L1516"> <span class="tok-str">\\u'foo'</span></span> <span class="line" id="L1517"> <span class="tok-str">\\U'foo'</span></span> <span class="line" id="L1518"> <span class="tok-str">\\L'foo'</span></span> <span class="line" id="L1519"> <span class="tok-str">\\</span></span> <span class="line" id="L1520"> , &[_]Token.Id{</span> <span class="line" id="L1521"> .{ .StringLiteral = .none },</span> <span class="line" id="L1522"> .Nl,</span> <span class="line" id="L1523"> .{ .StringLiteral = .utf_16 },</span> <span class="line" id="L1524"> .Nl,</span> <span class="line" id="L1525"> .{ .StringLiteral = .utf_8 },</span> <span class="line" id="L1526"> .Nl,</span> <span class="line" id="L1527"> .{ .StringLiteral = .utf_32 },</span> <span class="line" id="L1528"> .Nl,</span> <span class="line" id="L1529"> .{ .StringLiteral = .wide },</span> <span class="line" id="L1530"> .Nl,</span> <span class="line" id="L1531"> .{ .CharLiteral = .none },</span> <span class="line" id="L1532"> .Nl,</span> <span class="line" id="L1533"> .{ .CharLiteral = .utf_16 },</span> <span class="line" id="L1534"> .Nl,</span> <span class="line" id="L1535"> .{ .CharLiteral = .utf_32 },</span> <span class="line" id="L1536"> .Nl,</span> <span class="line" id="L1537"> .{ .CharLiteral = .wide },</span> <span class="line" id="L1538"> .Nl,</span> <span class="line" id="L1539"> });</span> <span class="line" id="L1540">}</span> <span class="line" id="L1541"></span> <span class="line" id="L1542"><span class="tok-kw">test</span> <span class="tok-str">"num suffixes"</span> {</span> <span class="line" id="L1543"> <span class="tok-kw">try</span> expectTokens(</span> <span class="line" id="L1544"> <span class="tok-str">\\ 1.0f 1.0L 1.0 .0 1.</span></span> <span class="line" id="L1545"> <span class="tok-str">\\ 0l 0lu 0ll 0llu 0</span></span> <span class="line" id="L1546"> <span class="tok-str">\\ 1u 1ul 1ull 1</span></span> <span class="line" id="L1547"> <span class="tok-str">\\ 0x 0b</span></span> <span class="line" id="L1548"> <span class="tok-str">\\</span></span> <span class="line" id="L1549"> , &[_]Token.Id{</span> <span class="line" id="L1550"> .{ .FloatLiteral = .f },</span> <span class="line" id="L1551"> .{ .FloatLiteral = .l },</span> <span class="line" id="L1552"> .{ .FloatLiteral = .none },</span> <span class="line" id="L1553"> .{ .FloatLiteral = .none },</span> <span class="line" id="L1554"> .{ .FloatLiteral = .none },</span> <span class="line" id="L1555"> .Nl,</span> <span class="line" id="L1556"> .{ .IntegerLiteral = .l },</span> <span class="line" id="L1557"> .{ .IntegerLiteral = .lu },</span> <span class="line" id="L1558"> .{ .IntegerLiteral = .ll },</span> <span class="line" id="L1559"> .{ .IntegerLiteral = .llu },</span> <span class="line" id="L1560"> .{ .IntegerLiteral = .none },</span> <span class="line" id="L1561"> .Nl,</span> <span class="line" id="L1562"> .{ .IntegerLiteral = .u },</span> <span class="line" id="L1563"> .{ .IntegerLiteral = .lu },</span> <span class="line" id="L1564"> .{ .IntegerLiteral = .llu },</span> <span class="line" id="L1565"> .{ .IntegerLiteral = .none },</span> <span class="line" id="L1566"> .Nl,</span> <span class="line" id="L1567"> .Invalid,</span> <span class="line" id="L1568"> .Invalid,</span> <span class="line" id="L1569"> .Nl,</span> <span class="line" id="L1570"> });</span> <span class="line" id="L1571">}</span> <span class="line" id="L1572"></span> <span class="line" id="L1573"><span class="tok-kw">fn</span> <span class="tok-fn">expectTokens</span>(source: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, expected_tokens: []<span class="tok-kw">const</span> Token.Id) !<span class="tok-type">void</span> {</span> <span class="line" id="L1574"> <span class="tok-kw">var</span> tokenizer = Tokenizer{</span> <span class="line" id="L1575"> .buffer = source,</span> <span class="line" id="L1576"> };</span> <span class="line" id="L1577"> <span class="tok-kw">for</span> (expected_tokens) \|expected_token_id\| {</span> <span class="line" id="L1578"> <span class="tok-kw">const</span> token = tokenizer.next();</span> <span class="line" id="L1579"> <span class="tok-kw">if</span> (!std.meta.eql(token.id, expected_token_id)) {</span> <span class="line" id="L1580"> std.debug.panic(<span class="tok-str">"expected {s}, found {s}\n"</span>, .{ <span class="tok-builtin">@tagName</span>(expected_token_id), <span class="tok-builtin">@tagName</span>(token.id) });</span> <span class="line" id="L1581"> }</span> <span class="line" id="L1582"> }</span> <span class="line" id="L1583"> <span class="tok-kw">const</span> last_token = tokenizer.next();</span> <span class="line" id="L1584"> <span class="tok-kw">try</span> std.testing.expect(last_token.id == .Eof);</span> <span class="line" id="L1585">}</span> <span class="line" id="L1586"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/json/stringify.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>json/stringify.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> assert = std.debug.assert;</span> <span class="line" id="L3"><span class="tok-kw">const</span> Allocator = std.mem.Allocator;</span> <span class="line" id="L4"><span class="tok-kw">const</span> ArrayList = std.ArrayList;</span> <span class="line" id="L5"><span class="tok-kw">const</span> BitStack = std.BitStack;</span> <span class="line" id="L6"></span> <span class="line" id="L7"><span class="tok-kw">const</span> OBJECT_MODE = <span class="tok-number">0</span>;</span> <span class="line" id="L8"><span class="tok-kw">const</span> ARRAY_MODE = <span class="tok-number">1</span>;</span> <span class="line" id="L9"></span> <span class="line" id="L10"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> StringifyOptions = <span class="tok-kw">struct</span> {</span> <span class="line" id="L11"> <span class="tok-comment">/// Controls the whitespace emitted.</span></span> <span class="line" id="L12"> <span class="tok-comment">/// The default `.minified` is a compact encoding with no whitespace between tokens.</span></span> <span class="line" id="L13"> <span class="tok-comment">/// Any setting other than `.minified` will use newlines, indentation, and a space after each ':'.</span></span> <span class="line" id="L14"> <span class="tok-comment">/// `.indent_1` means 1 space for each indentation level, `.indent_2` means 2 spaces, etc.</span></span> <span class="line" id="L15"> <span class="tok-comment">/// `.indent_tab` uses a tab for each indentation level.</span></span> <span class="line" id="L16"> whitespace: <span class="tok-kw">enum</span> {</span> <span class="line" id="L17"> minified,</span> <span class="line" id="L18"> indent_1,</span> <span class="line" id="L19"> indent_2,</span> <span class="line" id="L20"> indent_3,</span> <span class="line" id="L21"> indent_4,</span> <span class="line" id="L22"> indent_8,</span> <span class="line" id="L23"> indent_tab,</span> <span class="line" id="L24"> } = .minified,</span> <span class="line" id="L25"></span> <span class="line" id="L26"> <span class="tok-comment">/// Should optional fields with null value be written?</span></span> <span class="line" id="L27"> emit_null_optional_fields: <span class="tok-type">bool</span> = <span class="tok-null">true</span>,</span> <span class="line" id="L28"></span> <span class="line" id="L29"> <span class="tok-comment">/// Arrays/slices of u8 are typically encoded as JSON strings.</span></span> <span class="line" id="L30"> <span class="tok-comment">/// This option emits them as arrays of numbers instead.</span></span> <span class="line" id="L31"> <span class="tok-comment">/// Does not affect calls to `objectField()`.</span></span> <span class="line" id="L32"> emit_strings_as_arrays: <span class="tok-type">bool</span> = <span class="tok-null">false</span>,</span> <span class="line" id="L33"></span> <span class="line" id="L34"> <span class="tok-comment">/// Should unicode characters be escaped in strings?</span></span> <span class="line" id="L35"> escape_unicode: <span class="tok-type">bool</span> = <span class="tok-null">false</span>,</span> <span class="line" id="L36">};</span> <span class="line" id="L37"></span> <span class="line" id="L38"><span class="tok-comment">/// Writes the given value to the `std.io.Writer` stream.</span></span> <span class="line" id="L39"><span class="tok-comment">/// See `WriteStream` for how the given value is serialized into JSON.</span></span> <span class="line" id="L40"><span class="tok-comment">/// The maximum nesting depth of the output JSON document is 256.</span></span> <span class="line" id="L41"><span class="tok-comment">/// See also `stringifyMaxDepth` and `stringifyArbitraryDepth`.</span></span> <span class="line" id="L42"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">stringify</span>(</span> <span class="line" id="L43"> value: <span class="tok-kw">anytype</span>,</span> <span class="line" id="L44"> options: StringifyOptions,</span> <span class="line" id="L45"> out_stream: <span class="tok-kw">anytype</span>,</span> <span class="line" id="L46">) <span class="tok-builtin">@TypeOf</span>(out_stream).Error!<span class="tok-type">void</span> {</span> <span class="line" id="L47"> <span class="tok-kw">var</span> jw = writeStream(out_stream, options);</span> <span class="line" id="L48"> <span class="tok-kw">defer</span> jw.deinit();</span> <span class="line" id="L49"> <span class="tok-kw">try</span> jw.write(value);</span> <span class="line" id="L50">}</span> <span class="line" id="L51"></span> <span class="line" id="L52"><span class="tok-comment">/// Like `stringify` with configurable nesting depth.</span></span> <span class="line" id="L53"><span class="tok-comment">/// `max_depth` is rounded up to the nearest multiple of 8.</span></span> <span class="line" id="L54"><span class="tok-comment">/// Give `null` for `max_depth` to disable some safety checks and allow arbitrary nesting depth.</span></span> <span class="line" id="L55"><span class="tok-comment">/// See `writeStreamMaxDepth` for more info.</span></span> <span class="line" id="L56"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">stringifyMaxDepth</span>(</span> <span class="line" id="L57"> value: <span class="tok-kw">anytype</span>,</span> <span class="line" id="L58"> options: StringifyOptions,</span> <span class="line" id="L59"> out_stream: <span class="tok-kw">anytype</span>,</span> <span class="line" id="L60"> <span class="tok-kw">comptime</span> max_depth: ?<span class="tok-type">usize</span>,</span> <span class="line" id="L61">) <span class="tok-builtin">@TypeOf</span>(out_stream).Error!<span class="tok-type">void</span> {</span> <span class="line" id="L62"> <span class="tok-kw">var</span> jw = writeStreamMaxDepth(out_stream, options, max_depth);</span> <span class="line" id="L63"> <span class="tok-kw">try</span> jw.write(value);</span> <span class="line" id="L64">}</span> <span class="line" id="L65"></span> <span class="line" id="L66"><span class="tok-comment">/// Like `stringify` but takes an allocator to facilitate safety checks while allowing arbitrary nesting depth.</span></span> <span class="line" id="L67"><span class="tok-comment">/// These safety checks can be helpful when debugging custom `jsonStringify` implementations;</span></span> <span class="line" id="L68"><span class="tok-comment">/// See `WriteStream`.</span></span> <span class="line" id="L69"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">stringifyArbitraryDepth</span>(</span> <span class="line" id="L70"> allocator: Allocator,</span> <span class="line" id="L71"> value: <span class="tok-kw">anytype</span>,</span> <span class="line" id="L72"> options: StringifyOptions,</span> <span class="line" id="L73"> out_stream: <span class="tok-kw">anytype</span>,</span> <span class="line" id="L74">) WriteStream(<span class="tok-builtin">@TypeOf</span>(out_stream), .checked_to_arbitrary_depth).Error!<span class="tok-type">void</span> {</span> <span class="line" id="L75"> <span class="tok-kw">var</span> jw = writeStreamArbitraryDepth(allocator, out_stream, options);</span> <span class="line" id="L76"> <span class="tok-kw">defer</span> jw.deinit();</span> <span class="line" id="L77"> <span class="tok-kw">try</span> jw.write(value);</span> <span class="line" id="L78">}</span> <span class="line" id="L79"></span> <span class="line" id="L80"><span class="tok-comment">/// Calls `stringifyArbitraryDepth` and stores the result in dynamically allocated memory</span></span> <span class="line" id="L81"><span class="tok-comment">/// instead of taking a `std.io.Writer`.</span></span> <span class="line" id="L82"><span class="tok-comment">///</span></span> <span class="line" id="L83"><span class="tok-comment">/// Caller owns returned memory.</span></span> <span class="line" id="L84"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">stringifyAlloc</span>(</span> <span class="line" id="L85"> allocator: Allocator,</span> <span class="line" id="L86"> value: <span class="tok-kw">anytype</span>,</span> <span class="line" id="L87"> options: StringifyOptions,</span> <span class="line" id="L88">) <span class="tok-kw">error</span>{OutOfMemory}![]<span class="tok-kw">const</span> <span class="tok-type">u8</span> {</span> <span class="line" id="L89"> <span class="tok-kw">var</span> list = std.ArrayList(<span class="tok-type">u8</span>).init(allocator);</span> <span class="line" id="L90"> <span class="tok-kw">errdefer</span> list.deinit();</span> <span class="line" id="L91"> <span class="tok-kw">try</span> stringifyArbitraryDepth(allocator, value, options, list.writer());</span> <span class="line" id="L92"> <span class="tok-kw">return</span> list.toOwnedSlice();</span> <span class="line" id="L93">}</span> <span class="line" id="L94"></span> <span class="line" id="L95"><span class="tok-comment">/// See `WriteStream` for documentation.</span></span> <span class="line" id="L96"><span class="tok-comment">/// Equivalent to calling `writeStreamMaxDepth` with a depth of `256`.</span></span> <span class="line" id="L97"><span class="tok-comment">///</span></span> <span class="line" id="L98"><span class="tok-comment">/// The caller does not need to call `deinit()` on the returned object.</span></span> <span class="line" id="L99"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">writeStream</span>(</span> <span class="line" id="L100"> out_stream: <span class="tok-kw">anytype</span>,</span> <span class="line" id="L101"> options: StringifyOptions,</span> <span class="line" id="L102">) WriteStream(<span class="tok-builtin">@TypeOf</span>(out_stream), .{ .checked_to_fixed_depth = <span class="tok-number">256</span> }) {</span> <span class="line" id="L103"> <span class="tok-kw">return</span> writeStreamMaxDepth(out_stream, options, <span class="tok-number">256</span>);</span> <span class="line" id="L104">}</span> <span class="line" id="L105"></span> <span class="line" id="L106"><span class="tok-comment">/// See `WriteStream` for documentation.</span></span> <span class="line" id="L107"><span class="tok-comment">/// The returned object includes 1 bit of size per `max_depth` to enable safety checks on the order of method calls;</span></span> <span class="line" id="L108"><span class="tok-comment">/// see the grammar in the `WriteStream` documentation.</span></span> <span class="line" id="L109"><span class="tok-comment">/// `max_depth` is rounded up to the nearest multiple of 8.</span></span> <span class="line" id="L110"><span class="tok-comment">/// If the nesting depth exceeds `max_depth`, it is detectable illegal behavior.</span></span> <span class="line" id="L111"><span class="tok-comment">/// Give `null` for `max_depth` to disable safety checks for the grammar and allow arbitrary nesting depth.</span></span> <span class="line" id="L112"><span class="tok-comment">/// In `ReleaseFast` and `ReleaseSmall`, `max_depth` is ignored, effectively equivalent to passing `null`.</span></span> <span class="line" id="L113"><span class="tok-comment">/// Alternatively, see `writeStreamArbitraryDepth` to do safety checks to arbitrary depth.</span></span> <span class="line" id="L114"><span class="tok-comment">///</span></span> <span class="line" id="L115"><span class="tok-comment">/// The caller does not need to call `deinit()` on the returned object.</span></span> <span class="line" id="L116"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">writeStreamMaxDepth</span>(</span> <span class="line" id="L117"> out_stream: <span class="tok-kw">anytype</span>,</span> <span class="line" id="L118"> options: StringifyOptions,</span> <span class="line" id="L119"> <span class="tok-kw">comptime</span> max_depth: ?<span class="tok-type">usize</span>,</span> <span class="line" id="L120">) WriteStream(</span> <span class="line" id="L121"> <span class="tok-builtin">@TypeOf</span>(out_stream),</span> <span class="line" id="L122"> <span class="tok-kw">if</span> (max_depth) \|d\| .{ .checked_to_fixed_depth = d } <span class="tok-kw">else</span> .assumed_correct,</span> <span class="line" id="L123">) {</span> <span class="line" id="L124"> <span class="tok-kw">return</span> WriteStream(</span> <span class="line" id="L125"> <span class="tok-builtin">@TypeOf</span>(out_stream),</span> <span class="line" id="L126"> <span class="tok-kw">if</span> (max_depth) \|d\| .{ .checked_to_fixed_depth = d } <span class="tok-kw">else</span> .assumed_correct,</span> <span class="line" id="L127"> ).init(<span class="tok-null">undefined</span>, out_stream, options);</span> <span class="line" id="L128">}</span> <span class="line" id="L129"></span> <span class="line" id="L130"><span class="tok-comment">/// See `WriteStream` for documentation.</span></span> <span class="line" id="L131"><span class="tok-comment">/// This version of the write stream enables safety checks to arbitrarily deep nesting levels</span></span> <span class="line" id="L132"><span class="tok-comment">/// by using the given allocator.</span></span> <span class="line" id="L133"><span class="tok-comment">/// The caller should call `deinit()` on the returned object to free allocated memory.</span></span> <span class="line" id="L134"><span class="tok-comment">///</span></span> <span class="line" id="L135"><span class="tok-comment">/// In `ReleaseFast` and `ReleaseSmall` mode, this function is effectively equivalent to calling `writeStreamMaxDepth(..., null)`;</span></span> <span class="line" id="L136"><span class="tok-comment">/// in those build modes, the allocator is not used.</span></span> <span class="line" id="L137"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">writeStreamArbitraryDepth</span>(</span> <span class="line" id="L138"> allocator: Allocator,</span> <span class="line" id="L139"> out_stream: <span class="tok-kw">anytype</span>,</span> <span class="line" id="L140"> options: StringifyOptions,</span> <span class="line" id="L141">) WriteStream(<span class="tok-builtin">@TypeOf</span>(out_stream), .checked_to_arbitrary_depth) {</span> <span class="line" id="L142"> <span class="tok-kw">return</span> WriteStream(<span class="tok-builtin">@TypeOf</span>(out_stream), .checked_to_arbitrary_depth).init(allocator, out_stream, options);</span> <span class="line" id="L143">}</span> <span class="line" id="L144"></span> <span class="line" id="L145"><span class="tok-comment">/// Writes JSON ([RFC8259](https://tools.ietf.org/html/rfc8259)) formatted data</span></span> <span class="line" id="L146"><span class="tok-comment">/// to a stream.</span></span> <span class="line" id="L147"><span class="tok-comment">///</span></span> <span class="line" id="L148"><span class="tok-comment">/// The seqeunce of method calls to write JSON content must follow this grammar:</span></span> <span class="line" id="L149"><span class="tok-comment">/// ```</span></span> <span class="line" id="L150"><span class="tok-comment">/// <once> = <value></span></span> <span class="line" id="L151"><span class="tok-comment">/// <value> =</span></span> <span class="line" id="L152"><span class="tok-comment">/// \| <object></span></span> <span class="line" id="L153"><span class="tok-comment">/// \| <array></span></span> <span class="line" id="L154"><span class="tok-comment">/// \| write</span></span> <span class="line" id="L155"><span class="tok-comment">/// \| writePreformatted</span></span> <span class="line" id="L156"><span class="tok-comment">/// <object> = beginObject ( objectField <value> )* endObject</span></span> <span class="line" id="L157"><span class="tok-comment">/// <array> = beginArray ( <value> )* endArray</span></span> <span class="line" id="L158"><span class="tok-comment">/// ```</span></span> <span class="line" id="L159"><span class="tok-comment">///</span></span> <span class="line" id="L160"><span class="tok-comment">/// Supported types:</span></span> <span class="line" id="L161"><span class="tok-comment">/// * Zig `bool` -> JSON `true` or `false`.</span></span> <span class="line" id="L162"><span class="tok-comment">/// * Zig `?T` -> `null` or the rendering of `T`.</span></span> <span class="line" id="L163"><span class="tok-comment">/// * Zig `i32`, `u64`, etc. -> JSON number or string.</span></span> <span class="line" id="L164"><span class="tok-comment">/// * If the value is outside the range `±1<<53` (the precise integer rage of f64), it is rendered as a JSON string in base 10. Otherwise, it is rendered as JSON number.</span></span> <span class="line" id="L165"><span class="tok-comment">/// * Zig floats -> JSON number or string.</span></span> <span class="line" id="L166"><span class="tok-comment">/// * If the value cannot be precisely represented by an f64, it is rendered as a JSON string. Otherwise, it is rendered as JSON number.</span></span> <span class="line" id="L167"><span class="tok-comment">/// * TODO: Float rendering will likely change in the future, e.g. to remove the unnecessary "e+00".</span></span> <span class="line" id="L168"><span class="tok-comment">/// * Zig `[]const u8`, `[]u8`, `[N]u8`, `@Vector(N, u8)`, and similar -> JSON string.</span></span> <span class="line" id="L169"><span class="tok-comment">/// See `StringifyOptions.emit_strings_as_arrays`.</span></span> <span class="line" id="L170"><span class="tok-comment">/// * If the content is not valid UTF-8, rendered as an array of numbers instead.</span></span> <span class="line" id="L171"><span class="tok-comment">/// * Zig `[]T`, `[N]T`, `[N]T`, `@Vector(N, T)`, and similar -> JSON array of the rendering of each item.</span></span> <span class="line" id="L172"><span class="tok-comment">/// Zig tuple -> JSON array of the rendering of each item.</span></span> <span class="line" id="L173"><span class="tok-comment">/// * Zig `struct` -> JSON object with each field in declaration order.</span></span> <span class="line" id="L174"><span class="tok-comment">/// * If the struct declares a method `pub fn jsonStringify(self: @This(), jw: anytype) !void`, it is called to do the serialization instead of the default behavior. The given `jw` is a pointer to this `WriteStream`. See `std.json.Value` for an example.</span></span> <span class="line" id="L175"><span class="tok-comment">/// See `StringifyOptions.emit_null_optional_fields`.</span></span> <span class="line" id="L176"><span class="tok-comment">/// * Zig `union(enum)` -> JSON object with one field named for the active tag and a value representing the payload.</span></span> <span class="line" id="L177"><span class="tok-comment">/// * If the payload is `void`, then the emitted value is `{}`.</span></span> <span class="line" id="L178"><span class="tok-comment">/// * If the union declares a method `pub fn jsonStringify(self: @This(), jw: anytype) !void`, it is called to do the serialization instead of the default behavior. The given `jw` is a pointer to this `WriteStream`.</span></span> <span class="line" id="L179"><span class="tok-comment">/// Zig `enum` -> JSON string naming the active tag.</span></span> <span class="line" id="L180"><span class="tok-comment">/// * If the enum declares a method `pub fn jsonStringify(self: @This(), jw: anytype) !void`, it is called to do the serialization instead of the default behavior. The given `jw` is a pointer to this `WriteStream`.</span></span> <span class="line" id="L181"><span class="tok-comment">/// Zig error -> JSON string naming the error.</span></span> <span class="line" id="L182"><span class="tok-comment">/// * Zig `T` -> the rendering of `T`. Note there is no guard against circular-reference infinite recursion.</span></span> <span class="line" id="L183"><span class="tok-comment">///</span></span> <span class="line" id="L184"><span class="tok-comment">/// In `ReleaseFast` and `ReleaseSmall` mode, the given `safety_checks_hint` is ignored and is always treated as `.assumed_correct`.</span></span> <span class="line" id="L185"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">WriteStream</span>(</span> <span class="line" id="L186"> <span class="tok-kw">comptime</span> OutStream: <span class="tok-type">type</span>,</span> <span class="line" id="L187"> <span class="tok-kw">comptime</span> safety_checks_hint: <span class="tok-kw">union</span>(<span class="tok-kw">enum</span>) {</span> <span class="line" id="L188"> checked_to_arbitrary_depth,</span> <span class="line" id="L189"> checked_to_fixed_depth: <span class="tok-type">usize</span>, <span class="tok-comment">// Rounded up to the nearest multiple of 8.</span> </span> <span class="line" id="L190"> assumed_correct,</span> <span class="line" id="L191"> },</span> <span class="line" id="L192">) <span class="tok-type">type</span> {</span> <span class="line" id="L193"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L194"> <span class="tok-kw">const</span> Self = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L195"> <span class="tok-kw">const</span> safety_checks: <span class="tok-builtin">@TypeOf</span>(safety_checks_hint) = <span class="tok-kw">switch</span> (<span class="tok-builtin">@import</span>(<span class="tok-str">"builtin"</span>).mode) {</span> <span class="line" id="L196"> .Debug, .ReleaseSafe => safety_checks_hint,</span> <span class="line" id="L197"> .ReleaseFast, .ReleaseSmall => .assumed_correct,</span> <span class="line" id="L198"> };</span> <span class="line" id="L199"></span> <span class="line" id="L200"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Stream = OutStream;</span> <span class="line" id="L201"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Error = <span class="tok-kw">switch</span> (safety_checks) {</span> <span class="line" id="L202"> .checked_to_arbitrary_depth => Stream.Error \|\| <span class="tok-kw">error</span>{OutOfMemory},</span> <span class="line" id="L203"> .checked_to_fixed_depth, .assumed_correct => Stream.Error,</span> <span class="line" id="L204"> };</span> <span class="line" id="L205"></span> <span class="line" id="L206"> options: StringifyOptions,</span> <span class="line" id="L207"></span> <span class="line" id="L208"> stream: OutStream,</span> <span class="line" id="L209"> indent_level: <span class="tok-type">usize</span> = <span class="tok-number">0</span>,</span> <span class="line" id="L210"> next_punctuation: <span class="tok-kw">enum</span> {</span> <span class="line" id="L211"> the_beginning,</span> <span class="line" id="L212"> none,</span> <span class="line" id="L213"> comma,</span> <span class="line" id="L214"> colon,</span> <span class="line" id="L215"> } = .the_beginning,</span> <span class="line" id="L216"></span> <span class="line" id="L217"> nesting_stack: <span class="tok-kw">switch</span> (safety_checks) {</span> <span class="line" id="L218"> .checked_to_arbitrary_depth => BitStack,</span> <span class="line" id="L219"> .checked_to_fixed_depth => \|fixed_buffer_size\| [(fixed_buffer_size + <span class="tok-number">7</span>) >> <span class="tok-number">3</span>]<span class="tok-type">u8</span>,</span> <span class="line" id="L220"> .assumed_correct => <span class="tok-type">void</span>,</span> <span class="line" id="L221"> },</span> <span class="line" id="L222"></span> <span class="line" id="L223"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">init</span>(safety_allocator: Allocator, stream: OutStream, options: StringifyOptions) Self {</span> <span class="line" id="L224"> <span class="tok-kw">return</span> .{</span> <span class="line" id="L225"> .options = options,</span> <span class="line" id="L226"> .stream = stream,</span> <span class="line" id="L227"> .nesting_stack = <span class="tok-kw">switch</span> (safety_checks) {</span> <span class="line" id="L228"> .checked_to_arbitrary_depth => BitStack.init(safety_allocator),</span> <span class="line" id="L229"> .checked_to_fixed_depth => \|fixed_buffer_size\| [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} * ((fixed_buffer_size + <span class="tok-number">7</span>) >> <span class="tok-number">3</span>),</span> <span class="line" id="L230"> .assumed_correct => {},</span> <span class="line" id="L231"> },</span> <span class="line" id="L232"> };</span> <span class="line" id="L233"> }</span> <span class="line" id="L234"></span> <span class="line" id="L235"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">deinit</span>(self: Self) <span class="tok-type">void</span> {</span> <span class="line" id="L236"> <span class="tok-kw">switch</span> (safety_checks) {</span> <span class="line" id="L237"> .checked_to_arbitrary_depth => self.nesting_stack.deinit(),</span> <span class="line" id="L238"> .checked_to_fixed_depth, .assumed_correct => {},</span> <span class="line" id="L239"> }</span> <span class="line" id="L240"> self. = <span class="tok-null">undefined</span>;</span> <span class="line" id="L241"> }</span> <span class="line" id="L242"></span> <span class="line" id="L243"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">beginArray</span>(self: Self) Error!<span class="tok-type">void</span> {</span> <span class="line" id="L244"> <span class="tok-kw">try</span> self.valueStart();</span> <span class="line" id="L245"> <span class="tok-kw">try</span> self.stream.writeByte(<span class="tok-str">'['</span>);</span> <span class="line" id="L246"> <span class="tok-kw">try</span> self.pushIndentation(ARRAY_MODE);</span> <span class="line" id="L247"> self.next_punctuation = .none;</span> <span class="line" id="L248"> }</span> <span class="line" id="L249"></span> <span class="line" id="L250"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">beginObject</span>(self: Self) Error!<span class="tok-type">void</span> {</span> <span class="line" id="L251"> <span class="tok-kw">try</span> self.valueStart();</span> <span class="line" id="L252"> <span class="tok-kw">try</span> self.stream.writeByte(<span class="tok-str">'{'</span>);</span> <span class="line" id="L253"> <span class="tok-kw">try</span> self.pushIndentation(OBJECT_MODE);</span> <span class="line" id="L254"> self.next_punctuation = .none;</span> <span class="line" id="L255"> }</span> <span class="line" id="L256"></span> <span class="line" id="L257"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">endArray</span>(self: Self) Error!<span class="tok-type">void</span> {</span> <span class="line" id="L258"> self.popIndentation(ARRAY_MODE);</span> <span class="line" id="L259"> <span class="tok-kw">switch</span> (self.next_punctuation) {</span> <span class="line" id="L260"> .none => {},</span> <span class="line" id="L261"> .comma => {</span> <span class="line" id="L262"> <span class="tok-kw">try</span> self.indent();</span> <span class="line" id="L263"> },</span> <span class="line" id="L264"> .the_beginning, .colon => <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L265"> }</span> <span class="line" id="L266"> <span class="tok-kw">try</span> self.stream.writeByte(<span class="tok-str">']'</span>);</span> <span class="line" id="L267"> self.valueDone();</span> <span class="line" id="L268"> }</span> <span class="line" id="L269"></span> <span class="line" id="L270"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">endObject</span>(self: Self) Error!<span class="tok-type">void</span> {</span> <span class="line" id="L271"> self.popIndentation(OBJECT_MODE);</span> <span class="line" id="L272"> <span class="tok-kw">switch</span> (self.next_punctuation) {</span> <span class="line" id="L273"> .none => {},</span> <span class="line" id="L274"> .comma => {</span> <span class="line" id="L275"> <span class="tok-kw">try</span> self.indent();</span> <span class="line" id="L276"> },</span> <span class="line" id="L277"> .the_beginning, .colon => <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L278"> }</span> <span class="line" id="L279"> <span class="tok-kw">try</span> self.stream.writeByte(<span class="tok-str">'}'</span>);</span> <span class="line" id="L280"> self.valueDone();</span> <span class="line" id="L281"> }</span> <span class="line" id="L282"></span> <span class="line" id="L283"> <span class="tok-kw">fn</span> <span class="tok-fn">pushIndentation</span>(self: Self, mode: <span class="tok-type">u1</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L284"> <span class="tok-kw">switch</span> (safety_checks) {</span> <span class="line" id="L285"> .checked_to_arbitrary_depth => {</span> <span class="line" id="L286"> <span class="tok-kw">try</span> self.nesting_stack.push(mode);</span> <span class="line" id="L287"> self.indent_level += <span class="tok-number">1</span>;</span> <span class="line" id="L288"> },</span> <span class="line" id="L289"> .checked_to_fixed_depth => {</span> <span class="line" id="L290"> BitStack.pushWithStateAssumeCapacity(&self.nesting_stack, &self.indent_level, mode);</span> <span class="line" id="L291"> },</span> <span class="line" id="L292"> .assumed_correct => {</span> <span class="line" id="L293"> self.indent_level += <span class="tok-number">1</span>;</span> <span class="line" id="L294"> },</span> <span class="line" id="L295"> }</span> <span class="line" id="L296"> }</span> <span class="line" id="L297"> <span class="tok-kw">fn</span> <span class="tok-fn">popIndentation</span>(self: Self, assert_its_this_one: <span class="tok-type">u1</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L298"> <span class="tok-kw">switch</span> (safety_checks) {</span> <span class="line" id="L299"> .checked_to_arbitrary_depth => {</span> <span class="line" id="L300"> assert(self.nesting_stack.pop() == assert_its_this_one);</span> <span class="line" id="L301"> self.indent_level -= <span class="tok-number">1</span>;</span> <span class="line" id="L302"> },</span> <span class="line" id="L303"> .checked_to_fixed_depth => {</span> <span class="line" id="L304"> assert(BitStack.popWithState(&self.nesting_stack, &self.indent_level) == assert_its_this_one);</span> <span class="line" id="L305"> },</span> <span class="line" id="L306"> .assumed_correct => {</span> <span class="line" id="L307"> self.indent_level -= <span class="tok-number">1</span>;</span> <span class="line" id="L308"> },</span> <span class="line" id="L309"> }</span> <span class="line" id="L310"> }</span> <span class="line" id="L311"></span> <span class="line" id="L312"> <span class="tok-kw">fn</span> <span class="tok-fn">indent</span>(self: Self) !<span class="tok-type">void</span> {</span> <span class="line" id="L313"> <span class="tok-kw">var</span> char: <span class="tok-type">u8</span> = <span class="tok-str">' '</span>;</span> <span class="line" id="L314"> <span class="tok-kw">const</span> n_chars = <span class="tok-kw">switch</span> (self.options.whitespace) {</span> <span class="line" id="L315"> .minified => <span class="tok-kw">return</span>,</span> <span class="line" id="L316"> .indent_1 => <span class="tok-number">1</span> self.indent_level,</span> <span class="line" id="L317"> .indent_2 => <span class="tok-number">2</span> * self.indent_level,</span> <span class="line" id="L318"> .indent_3 => <span class="tok-number">3</span> * self.indent_level,</span> <span class="line" id="L319"> .indent_4 => <span class="tok-number">4</span> * self.indent_level,</span> <span class="line" id="L320"> .indent_8 => <span class="tok-number">8</span> * self.indent_level,</span> <span class="line" id="L321"> .indent_tab => blk: {</span> <span class="line" id="L322"> char = <span class="tok-str">'\t'</span>;</span> <span class="line" id="L323"> <span class="tok-kw">break</span> :blk self.indent_level;</span> <span class="line" id="L324"> },</span> <span class="line" id="L325"> };</span> <span class="line" id="L326"> <span class="tok-kw">try</span> self.stream.writeByte(<span class="tok-str">'\n'</span>);</span> <span class="line" id="L327"> <span class="tok-kw">try</span> self.stream.writeByteNTimes(char, n_chars);</span> <span class="line" id="L328"> }</span> <span class="line" id="L329"></span> <span class="line" id="L330"> <span class="tok-kw">fn</span> <span class="tok-fn">valueStart</span>(self: Self) !<span class="tok-type">void</span> {</span> <span class="line" id="L331"> <span class="tok-kw">if</span> (self.isObjectKeyExpected()) \|is_it\| assert(!is_it); <span class="tok-comment">// Call objectField(), not write(), for object keys.</span> </span> <span class="line" id="L332"> <span class="tok-kw">return</span> self.valueStartAssumeTypeOk();</span> <span class="line" id="L333"> }</span> <span class="line" id="L334"> <span class="tok-kw">fn</span> <span class="tok-fn">objectFieldStart</span>(self: Self) !<span class="tok-type">void</span> {</span> <span class="line" id="L335"> <span class="tok-kw">if</span> (self.isObjectKeyExpected()) \|is_it\| assert(is_it); <span class="tok-comment">// Expected write(), not objectField().</span> </span> <span class="line" id="L336"> <span class="tok-kw">return</span> self.valueStartAssumeTypeOk();</span> <span class="line" id="L337"> }</span> <span class="line" id="L338"> <span class="tok-kw">fn</span> <span class="tok-fn">valueStartAssumeTypeOk</span>(self: Self) !<span class="tok-type">void</span> {</span> <span class="line" id="L339"> assert(!self.isComplete()); <span class="tok-comment">// JSON document already complete.</span> </span> <span class="line" id="L340"> <span class="tok-kw">switch</span> (self.next_punctuation) {</span> <span class="line" id="L341"> .the_beginning => {</span> <span class="line" id="L342"> <span class="tok-comment">// No indentation for the very beginning.</span> </span> <span class="line" id="L343"> },</span> <span class="line" id="L344"> .none => {</span> <span class="line" id="L345"> <span class="tok-comment">// First item in a container.</span> </span> <span class="line" id="L346"> <span class="tok-kw">try</span> self.indent();</span> <span class="line" id="L347"> },</span> <span class="line" id="L348"> .comma => {</span> <span class="line" id="L349"> <span class="tok-comment">// Subsequent item in a container.</span> </span> <span class="line" id="L350"> <span class="tok-kw">try</span> self.stream.writeByte(<span class="tok-str">','</span>);</span> <span class="line" id="L351"> <span class="tok-kw">try</span> self.indent();</span> <span class="line" id="L352"> },</span> <span class="line" id="L353"> .colon => {</span> <span class="line" id="L354"> <span class="tok-kw">try</span> self.stream.writeByte(<span class="tok-str">':'</span>);</span> <span class="line" id="L355"> <span class="tok-kw">if</span> (self.options.whitespace != .minified) {</span> <span class="line" id="L356"> <span class="tok-kw">try</span> self.stream.writeByte(<span class="tok-str">' '</span>);</span> <span class="line" id="L357"> }</span> <span class="line" id="L358"> },</span> <span class="line" id="L359"> }</span> <span class="line" id="L360"> }</span> <span class="line" id="L361"> <span class="tok-kw">fn</span> <span class="tok-fn">valueDone</span>(self: Self) <span class="tok-type">void</span> {</span> <span class="line" id="L362"> self.next_punctuation = .comma;</span> <span class="line" id="L363"> }</span> <span class="line" id="L364"></span> <span class="line" id="L365"> <span class="tok-comment">// Only when safety is enabled:</span> </span> <span class="line" id="L366"> <span class="tok-kw">fn</span> <span class="tok-fn">isObjectKeyExpected</span>(self: <span class="tok-kw">const</span> Self) ?<span class="tok-type">bool</span> {</span> <span class="line" id="L367"> <span class="tok-kw">switch</span> (safety_checks) {</span> <span class="line" id="L368"> .checked_to_arbitrary_depth => <span class="tok-kw">return</span> self.indent_level > <span class="tok-number">0</span> <span class="tok-kw">and</span></span> <span class="line" id="L369"> self.nesting_stack.peek() == OBJECT_MODE <span class="tok-kw">and</span></span> <span class="line" id="L370"> self.next_punctuation != .colon,</span> <span class="line" id="L371"> .checked_to_fixed_depth => <span class="tok-kw">return</span> self.indent_level > <span class="tok-number">0</span> <span class="tok-kw">and</span></span> <span class="line" id="L372"> BitStack.peekWithState(&self.nesting_stack, self.indent_level) == OBJECT_MODE <span class="tok-kw">and</span></span> <span class="line" id="L373"> self.next_punctuation != .colon,</span> <span class="line" id="L374"> .assumed_correct => <span class="tok-kw">return</span> <span class="tok-null">null</span>,</span> <span class="line" id="L375"> }</span> <span class="line" id="L376"> }</span> <span class="line" id="L377"> <span class="tok-kw">fn</span> <span class="tok-fn">isComplete</span>(self: <span class="tok-kw">const</span> Self) <span class="tok-type">bool</span> {</span> <span class="line" id="L378"> <span class="tok-kw">return</span> self.indent_level == <span class="tok-number">0</span> <span class="tok-kw">and</span> self.next_punctuation == .comma;</span> <span class="line" id="L379"> }</span> <span class="line" id="L380"></span> <span class="line" id="L381"> <span class="tok-comment">/// An alternative to calling `write` that outputs the given bytes verbatim.</span></span> <span class="line" id="L382"> <span class="tok-comment">/// This function does the usual punctuation and indentation formatting</span></span> <span class="line" id="L383"> <span class="tok-comment">/// assuming the given slice represents a single complete value;</span></span> <span class="line" id="L384"> <span class="tok-comment">/// e.g. `"1"`, `"[]"`, `"[1,2]"`, not `"1,2"`.</span></span> <span class="line" id="L385"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">writePreformatted</span>(self: Self, value_slice: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) Error!<span class="tok-type">void</span> {</span> <span class="line" id="L386"> <span class="tok-kw">try</span> self.valueStart();</span> <span class="line" id="L387"> <span class="tok-kw">try</span> self.stream.writeAll(value_slice);</span> <span class="line" id="L388"> self.valueDone();</span> <span class="line" id="L389"> }</span> <span class="line" id="L390"></span> <span class="line" id="L391"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">objectField</span>(self: Self, key: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) Error!<span class="tok-type">void</span> {</span> <span class="line" id="L392"> <span class="tok-kw">try</span> self.objectFieldStart();</span> <span class="line" id="L393"> <span class="tok-kw">try</span> encodeJsonString(key, self.options, self.stream);</span> <span class="line" id="L394"> self.next_punctuation = .colon;</span> <span class="line" id="L395"> }</span> <span class="line" id="L396"></span> <span class="line" id="L397"> <span class="tok-comment">/// See `WriteStream`.</span></span> <span class="line" id="L398"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">write</span>(self: Self, value: <span class="tok-kw">anytype</span>) Error!<span class="tok-type">void</span> {</span> <span class="line" id="L399"> <span class="tok-kw">const</span> T = <span class="tok-builtin">@TypeOf</span>(value);</span> <span class="line" id="L400"> <span class="tok-kw">switch</span> (<span class="tok-builtin">@typeInfo</span>(T)) {</span> <span class="line" id="L401"> .Int => \|info\| {</span> <span class="line" id="L402"> <span class="tok-kw">if</span> (info.bits < <span class="tok-number">53</span>) {</span> <span class="line" id="L403"> <span class="tok-kw">try</span> self.valueStart();</span> <span class="line" id="L404"> <span class="tok-kw">try</span> self.stream.print(<span class="tok-str">"{}"</span>, .{value});</span> <span class="line" id="L405"> self.valueDone();</span> <span class="line" id="L406"> <span class="tok-kw">return</span>;</span> <span class="line" id="L407"> }</span> <span class="line" id="L408"> <span class="tok-kw">if</span> (value < <span class="tok-number">4503599627370496</span> <span class="tok-kw">and</span> (info.signedness == .unsigned <span class="tok-kw">or</span> value > -<span class="tok-number">4503599627370496</span>)) {</span> <span class="line" id="L409"> <span class="tok-kw">try</span> self.valueStart();</span> <span class="line" id="L410"> <span class="tok-kw">try</span> self.stream.print(<span class="tok-str">"{}"</span>, .{value});</span> <span class="line" id="L411"> self.valueDone();</span> <span class="line" id="L412"> <span class="tok-kw">return</span>;</span> <span class="line" id="L413"> }</span> <span class="line" id="L414"> <span class="tok-kw">try</span> self.valueStart();</span> <span class="line" id="L415"> <span class="tok-kw">try</span> self.stream.print(<span class="tok-str">"\"{}\""</span>, .{value});</span> <span class="line" id="L416"> self.valueDone();</span> <span class="line" id="L417"> <span class="tok-kw">return</span>;</span> <span class="line" id="L418"> },</span> <span class="line" id="L419"> .ComptimeInt => {</span> <span class="line" id="L420"> <span class="tok-kw">return</span> self.write(<span class="tok-builtin">@as</span>(std.math.IntFittingRange(value, value), value));</span> <span class="line" id="L421"> },</span> <span class="line" id="L422"> .Float, .ComptimeFloat => {</span> <span class="line" id="L423"> <span class="tok-kw">if</span> (<span class="tok-builtin">@as</span>(<span class="tok-type">f64</span>, <span class="tok-builtin">@floatCast</span>(value)) == value) {</span> <span class="line" id="L424"> <span class="tok-kw">try</span> self.valueStart();</span> <span class="line" id="L425"> <span class="tok-kw">try</span> self.stream.print(<span class="tok-str">"{}"</span>, .{<span class="tok-builtin">@as</span>(<span class="tok-type">f64</span>, <span class="tok-builtin">@floatCast</span>(value))});</span> <span class="line" id="L426"> self.valueDone();</span> <span class="line" id="L427"> <span class="tok-kw">return</span>;</span> <span class="line" id="L428"> }</span> <span class="line" id="L429"> <span class="tok-kw">try</span> self.valueStart();</span> <span class="line" id="L430"> <span class="tok-kw">try</span> self.stream.print(<span class="tok-str">"\"{}\""</span>, .{value});</span> <span class="line" id="L431"> self.valueDone();</span> <span class="line" id="L432"> <span class="tok-kw">return</span>;</span> <span class="line" id="L433"> },</span> <span class="line" id="L434"></span> <span class="line" id="L435"> .Bool => {</span> <span class="line" id="L436"> <span class="tok-kw">try</span> self.valueStart();</span> <span class="line" id="L437"> <span class="tok-kw">try</span> self.stream.writeAll(<span class="tok-kw">if</span> (value) <span class="tok-str">"true"</span> <span class="tok-kw">else</span> <span class="tok-str">"false"</span>);</span> <span class="line" id="L438"> self.valueDone();</span> <span class="line" id="L439"> <span class="tok-kw">return</span>;</span> <span class="line" id="L440"> },</span> <span class="line" id="L441"> .Null => {</span> <span class="line" id="L442"> <span class="tok-kw">try</span> self.valueStart();</span> <span class="line" id="L443"> <span class="tok-kw">try</span> self.stream.writeAll(<span class="tok-str">"null"</span>);</span> <span class="line" id="L444"> self.valueDone();</span> <span class="line" id="L445"> <span class="tok-kw">return</span>;</span> <span class="line" id="L446"> },</span> <span class="line" id="L447"> .Optional => {</span> <span class="line" id="L448"> <span class="tok-kw">if</span> (value) \|payload\| {</span> <span class="line" id="L449"> <span class="tok-kw">return</span> <span class="tok-kw">try</span> self.write(payload);</span> <span class="line" id="L450"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L451"> <span class="tok-kw">return</span> <span class="tok-kw">try</span> self.write(<span class="tok-null">null</span>);</span> <span class="line" id="L452"> }</span> <span class="line" id="L453"> },</span> <span class="line" id="L454"> .Enum => {</span> <span class="line" id="L455"> <span class="tok-kw">if</span> (<span class="tok-kw">comptime</span> std.meta.trait.hasFn(<span class="tok-str">"jsonStringify"</span>)(T)) {</span> <span class="line" id="L456"> <span class="tok-kw">return</span> value.jsonStringify(self);</span> <span class="line" id="L457"> }</span> <span class="line" id="L458"></span> <span class="line" id="L459"> <span class="tok-kw">return</span> self.stringValue(<span class="tok-builtin">@tagName</span>(value));</span> <span class="line" id="L460"> },</span> <span class="line" id="L461"> .Union => {</span> <span class="line" id="L462"> <span class="tok-kw">if</span> (<span class="tok-kw">comptime</span> std.meta.trait.hasFn(<span class="tok-str">"jsonStringify"</span>)(T)) {</span> <span class="line" id="L463"> <span class="tok-kw">return</span> value.jsonStringify(self);</span> <span class="line" id="L464"> }</span> <span class="line" id="L465"></span> <span class="line" id="L466"> <span class="tok-kw">const</span> info = <span class="tok-builtin">@typeInfo</span>(T).Union;</span> <span class="line" id="L467"> <span class="tok-kw">if</span> (info.tag_type) \|UnionTagType\| {</span> <span class="line" id="L468"> <span class="tok-kw">try</span> self.beginObject();</span> <span class="line" id="L469"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (info.fields) \|u_field\| {</span> <span class="line" id="L470"> <span class="tok-kw">if</span> (value == <span class="tok-builtin">@field</span>(UnionTagType, u_field.name)) {</span> <span class="line" id="L471"> <span class="tok-kw">try</span> self.objectField(u_field.name);</span> <span class="line" id="L472"> <span class="tok-kw">if</span> (u_field.<span class="tok-type">type</span> == <span class="tok-type">void</span>) {</span> <span class="line" id="L473"> <span class="tok-comment">// void value is {}</span> </span> <span class="line" id="L474"> <span class="tok-kw">try</span> self.beginObject();</span> <span class="line" id="L475"> <span class="tok-kw">try</span> self.endObject();</span> <span class="line" id="L476"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L477"> <span class="tok-kw">try</span> self.write(<span class="tok-builtin">@field</span>(value, u_field.name));</span> <span class="line" id="L478"> }</span> <span class="line" id="L479"> <span class="tok-kw">break</span>;</span> <span class="line" id="L480"> }</span> <span class="line" id="L481"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L482"> <span class="tok-kw">unreachable</span>; <span class="tok-comment">// No active tag?</span> </span> <span class="line" id="L483"> }</span> <span class="line" id="L484"> <span class="tok-kw">try</span> self.endObject();</span> <span class="line" id="L485"> <span class="tok-kw">return</span>;</span> <span class="line" id="L486"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L487"> <span class="tok-builtin">@compileError</span>(<span class="tok-str">"Unable to stringify untagged union '"</span> ++ <span class="tok-builtin">@typeName</span>(T) ++ <span class="tok-str">"'"</span>);</span> <span class="line" id="L488"> }</span> <span class="line" id="L489"> },</span> <span class="line" id="L490"> .Struct => \|S\| {</span> <span class="line" id="L491"> <span class="tok-kw">if</span> (<span class="tok-kw">comptime</span> std.meta.trait.hasFn(<span class="tok-str">"jsonStringify"</span>)(T)) {</span> <span class="line" id="L492"> <span class="tok-kw">return</span> value.jsonStringify(self);</span> <span class="line" id="L493"> }</span> <span class="line" id="L494"></span> <span class="line" id="L495"> <span class="tok-kw">if</span> (S.is_tuple) {</span> <span class="line" id="L496"> <span class="tok-kw">try</span> self.beginArray();</span> <span class="line" id="L497"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L498"> <span class="tok-kw">try</span> self.beginObject();</span> <span class="line" id="L499"> }</span> <span class="line" id="L500"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (S.fields) \|Field\| {</span> <span class="line" id="L501"> <span class="tok-comment">// don't include void fields</span> </span> <span class="line" id="L502"> <span class="tok-kw">if</span> (Field.<span class="tok-type">type</span> == <span class="tok-type">void</span>) <span class="tok-kw">continue</span>;</span> <span class="line" id="L503"></span> <span class="line" id="L504"> <span class="tok-kw">var</span> emit_field = <span class="tok-null">true</span>;</span> <span class="line" id="L505"></span> <span class="line" id="L506"> <span class="tok-comment">// don't include optional fields that are null when emit_null_optional_fields is set to false</span> </span> <span class="line" id="L507"> <span class="tok-kw">if</span> (<span class="tok-builtin">@typeInfo</span>(Field.<span class="tok-type">type</span>) == .Optional) {</span> <span class="line" id="L508"> <span class="tok-kw">if</span> (self.options.emit_null_optional_fields == <span class="tok-null">false</span>) {</span> <span class="line" id="L509"> <span class="tok-kw">if</span> (<span class="tok-builtin">@field</span>(value, Field.name) == <span class="tok-null">null</span>) {</span> <span class="line" id="L510"> emit_field = <span class="tok-null">false</span>;</span> <span class="line" id="L511"> }</span> <span class="line" id="L512"> }</span> <span class="line" id="L513"> }</span> <span class="line" id="L514"></span> <span class="line" id="L515"> <span class="tok-kw">if</span> (emit_field) {</span> <span class="line" id="L516"> <span class="tok-kw">if</span> (!S.is_tuple) {</span> <span class="line" id="L517"> <span class="tok-kw">try</span> self.objectField(Field.name);</span> <span class="line" id="L518"> }</span> <span class="line" id="L519"> <span class="tok-kw">try</span> self.write(<span class="tok-builtin">@field</span>(value, Field.name));</span> <span class="line" id="L520"> }</span> <span class="line" id="L521"> }</span> <span class="line" id="L522"> <span class="tok-kw">if</span> (S.is_tuple) {</span> <span class="line" id="L523"> <span class="tok-kw">try</span> self.endArray();</span> <span class="line" id="L524"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L525"> <span class="tok-kw">try</span> self.endObject();</span> <span class="line" id="L526"> }</span> <span class="line" id="L527"> <span class="tok-kw">return</span>;</span> <span class="line" id="L528"> },</span> <span class="line" id="L529"> .ErrorSet => <span class="tok-kw">return</span> self.stringValue(<span class="tok-builtin">@errorName</span>(value)),</span> <span class="line" id="L530"> .Pointer => \|ptr_info\| <span class="tok-kw">switch</span> (ptr_info.size) {</span> <span class="line" id="L531"> .One => <span class="tok-kw">switch</span> (<span class="tok-builtin">@typeInfo</span>(ptr_info.child)) {</span> <span class="line" id="L532"> .Array => {</span> <span class="line" id="L533"> <span class="tok-comment">// Coerce `[N]T` to `[]const T`.</span> </span> <span class="line" id="L534"> <span class="tok-kw">const</span> Slice = []<span class="tok-kw">const</span> std.meta.Elem(ptr_info.child);</span> <span class="line" id="L535"> <span class="tok-kw">return</span> self.write(<span class="tok-builtin">@as</span>(Slice, value));</span> <span class="line" id="L536"> },</span> <span class="line" id="L537"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L538"> <span class="tok-kw">return</span> self.write(value.);</span> <span class="line" id="L539"> },</span> <span class="line" id="L540"> },</span> <span class="line" id="L541"> .Many, .Slice => {</span> <span class="line" id="L542"> <span class="tok-kw">if</span> (ptr_info.size == .Many <span class="tok-kw">and</span> ptr_info.sentinel == <span class="tok-null">null</span>)</span> <span class="line" id="L543"> <span class="tok-builtin">@compileError</span>(<span class="tok-str">"unable to stringify type '"</span> ++ <span class="tok-builtin">@typeName</span>(T) ++ <span class="tok-str">"' without sentinel"</span>);</span> <span class="line" id="L544"> <span class="tok-kw">const</span> slice = <span class="tok-kw">if</span> (ptr_info.size == .Many) std.mem.span(value) <span class="tok-kw">else</span> value;</span> <span class="line" id="L545"></span> <span class="line" id="L546"> <span class="tok-kw">if</span> (ptr_info.child == <span class="tok-type">u8</span>) {</span> <span class="line" id="L547"> <span class="tok-comment">// This is a []const u8, or some similar Zig string.</span> </span> <span class="line" id="L548"> <span class="tok-kw">if</span> (!self.options.emit_strings_as_arrays <span class="tok-kw">and</span> std.unicode.utf8ValidateSlice(slice)) {</span> <span class="line" id="L549"> <span class="tok-kw">return</span> self.stringValue(slice);</span> <span class="line" id="L550"> }</span> <span class="line" id="L551"> }</span> <span class="line" id="L552"></span> <span class="line" id="L553"> <span class="tok-kw">try</span> self.beginArray();</span> <span class="line" id="L554"> <span class="tok-kw">for</span> (slice) \|x\| {</span> <span class="line" id="L555"> <span class="tok-kw">try</span> self.write(x);</span> <span class="line" id="L556"> }</span> <span class="line" id="L557"> <span class="tok-kw">try</span> self.endArray();</span> <span class="line" id="L558"> <span class="tok-kw">return</span>;</span> <span class="line" id="L559"> },</span> <span class="line" id="L560"> <span class="tok-kw">else</span> => <span class="tok-builtin">@compileError</span>(<span class="tok-str">"Unable to stringify type '"</span> ++ <span class="tok-builtin">@typeName</span>(T) ++ <span class="tok-str">"'"</span>),</span> <span class="line" id="L561"> },</span> <span class="line" id="L562"> .Array => {</span> <span class="line" id="L563"> <span class="tok-comment">// Coerce `[N]T` to `const [N]T` (and then to `[]const T`).</span> </span> <span class="line" id="L564"> <span class="tok-kw">return</span> self.write(&value);</span> <span class="line" id="L565"> },</span> <span class="line" id="L566"> .Vector => \|info\| {</span> <span class="line" id="L567"> <span class="tok-kw">const</span> array: [info.len]info.child = value;</span> <span class="line" id="L568"> <span class="tok-kw">return</span> self.write(&array);</span> <span class="line" id="L569"> },</span> <span class="line" id="L570"> <span class="tok-kw">else</span> => <span class="tok-builtin">@compileError</span>(<span class="tok-str">"Unable to stringify type '"</span> ++ <span class="tok-builtin">@typeName</span>(T) ++ <span class="tok-str">"'"</span>),</span> <span class="line" id="L571"> }</span> <span class="line" id="L572"> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L573"> }</span> <span class="line" id="L574"></span> <span class="line" id="L575"> <span class="tok-kw">fn</span> <span class="tok-fn">stringValue</span>(self: *Self, s: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L576"> <span class="tok-kw">try</span> self.valueStart();</span> <span class="line" id="L577"> <span class="tok-kw">try</span> encodeJsonString(s, self.options, self.stream);</span> <span class="line" id="L578"> self.valueDone();</span> <span class="line" id="L579"> }</span> <span class="line" id="L580"></span> <span class="line" id="L581"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> arrayElem = <span class="tok-builtin">@compileError</span>(<span class="tok-str">"Deprecated; You don't need to call this anymore."</span>);</span> <span class="line" id="L582"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> emitNull = <span class="tok-builtin">@compileError</span>(<span class="tok-str">"Deprecated; Use .write(null) instead."</span>);</span> <span class="line" id="L583"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> emitBool = <span class="tok-builtin">@compileError</span>(<span class="tok-str">"Deprecated; Use .write() instead."</span>);</span> <span class="line" id="L584"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> emitNumber = <span class="tok-builtin">@compileError</span>(<span class="tok-str">"Deprecated; Use .write() instead."</span>);</span> <span class="line" id="L585"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> emitString = <span class="tok-builtin">@compileError</span>(<span class="tok-str">"Deprecated; Use .write() instead."</span>);</span> <span class="line" id="L586"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> emitJson = <span class="tok-builtin">@compileError</span>(<span class="tok-str">"Deprecated; Use .write() instead."</span>);</span> <span class="line" id="L587"> };</span> <span class="line" id="L588">}</span> <span class="line" id="L589"></span> <span class="line" id="L590"><span class="tok-kw">fn</span> <span class="tok-fn">outputUnicodeEscape</span>(codepoint: <span class="tok-type">u21</span>, out_stream: <span class="tok-kw">anytype</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L591"> <span class="tok-kw">if</span> (codepoint <= <span class="tok-number">0xFFFF</span>) {</span> <span class="line" id="L592"> <span class="tok-comment">// If the character is in the Basic Multilingual Plane (U+0000 through U+FFFF),</span> </span> <span class="line" id="L593"> <span class="tok-comment">// then it may be represented as a six-character sequence: a reverse solidus, followed</span> </span> <span class="line" id="L594"> <span class="tok-comment">// by the lowercase letter u, followed by four hexadecimal digits that encode the character's code point.</span> </span> <span class="line" id="L595"> <span class="tok-kw">try</span> out_stream.writeAll(<span class="tok-str">"\\u"</span>);</span> <span class="line" id="L596"> <span class="tok-kw">try</span> std.fmt.formatIntValue(codepoint, <span class="tok-str">"x"</span>, std.fmt.FormatOptions{ .width = <span class="tok-number">4</span>, .fill = <span class="tok-str">'0'</span> }, out_stream);</span> <span class="line" id="L597"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L598"> assert(codepoint <= <span class="tok-number">0x10FFFF</span>);</span> <span class="line" id="L599"> <span class="tok-comment">// To escape an extended character that is not in the Basic Multilingual Plane,</span> </span> <span class="line" id="L600"> <span class="tok-comment">// the character is represented as a 12-character sequence, encoding the UTF-16 surrogate pair.</span> </span> <span class="line" id="L601"> <span class="tok-kw">const</span> high = <span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, <span class="tok-builtin">@intCast</span>((codepoint - <span class="tok-number">0x10000</span>) >> <span class="tok-number">10</span>)) + <span class="tok-number">0xD800</span>;</span> <span class="line" id="L602"> <span class="tok-kw">const</span> low = <span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, <span class="tok-builtin">@intCast</span>(codepoint & <span class="tok-number">0x3FF</span>)) + <span class="tok-number">0xDC00</span>;</span> <span class="line" id="L603"> <span class="tok-kw">try</span> out_stream.writeAll(<span class="tok-str">"\\u"</span>);</span> <span class="line" id="L604"> <span class="tok-kw">try</span> std.fmt.formatIntValue(high, <span class="tok-str">"x"</span>, std.fmt.FormatOptions{ .width = <span class="tok-number">4</span>, .fill = <span class="tok-str">'0'</span> }, out_stream);</span> <span class="line" id="L605"> <span class="tok-kw">try</span> out_stream.writeAll(<span class="tok-str">"\\u"</span>);</span> <span class="line" id="L606"> <span class="tok-kw">try</span> std.fmt.formatIntValue(low, <span class="tok-str">"x"</span>, std.fmt.FormatOptions{ .width = <span class="tok-number">4</span>, .fill = <span class="tok-str">'0'</span> }, out_stream);</span> <span class="line" id="L607"> }</span> <span class="line" id="L608">}</span> <span class="line" id="L609"></span> <span class="line" id="L610"><span class="tok-kw">fn</span> <span class="tok-fn">outputSpecialEscape</span>(c: <span class="tok-type">u8</span>, writer: <span class="tok-kw">anytype</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L611"> <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L612"> <span class="tok-str">'\\'</span> => <span class="tok-kw">try</span> writer.writeAll(<span class="tok-str">"\\\\"</span>),</span> <span class="line" id="L613"> <span class="tok-str">'\"'</span> => <span class="tok-kw">try</span> writer.writeAll(<span class="tok-str">"\\\""</span>),</span> <span class="line" id="L614"> <span class="tok-number">0x08</span> => <span class="tok-kw">try</span> writer.writeAll(<span class="tok-str">"\\b"</span>),</span> <span class="line" id="L615"> <span class="tok-number">0x0C</span> => <span class="tok-kw">try</span> writer.writeAll(<span class="tok-str">"\\f"</span>),</span> <span class="line" id="L616"> <span class="tok-str">'\n'</span> => <span class="tok-kw">try</span> writer.writeAll(<span class="tok-str">"\\n"</span>),</span> <span class="line" id="L617"> <span class="tok-str">'\r'</span> => <span class="tok-kw">try</span> writer.writeAll(<span class="tok-str">"\\r"</span>),</span> <span class="line" id="L618"> <span class="tok-str">'\t'</span> => <span class="tok-kw">try</span> writer.writeAll(<span class="tok-str">"\\t"</span>),</span> <span class="line" id="L619"> <span class="tok-kw">else</span> => <span class="tok-kw">try</span> outputUnicodeEscape(c, writer),</span> <span class="line" id="L620"> }</span> <span class="line" id="L621">}</span> <span class="line" id="L622"></span> <span class="line" id="L623"><span class="tok-comment">/// Write `string` to `writer` as a JSON encoded string.</span></span> <span class="line" id="L624"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">encodeJsonString</span>(string: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, options: StringifyOptions, writer: <span class="tok-kw">anytype</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L625"> <span class="tok-kw">try</span> writer.writeByte(<span class="tok-str">'\"'</span>);</span> <span class="line" id="L626"> <span class="tok-kw">try</span> encodeJsonStringChars(string, options, writer);</span> <span class="line" id="L627"> <span class="tok-kw">try</span> writer.writeByte(<span class="tok-str">'\"'</span>);</span> <span class="line" id="L628">}</span> <span class="line" id="L629"></span> <span class="line" id="L630"><span class="tok-comment">/// Write `chars` to `writer` as JSON encoded string characters.</span></span> <span class="line" id="L631"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">encodeJsonStringChars</span>(chars: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, options: StringifyOptions, writer: <span class="tok-kw">anytype</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L632"> <span class="tok-kw">var</span> write_cursor: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L633"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L634"> <span class="tok-kw">if</span> (options.escape_unicode) {</span> <span class="line" id="L635"> <span class="tok-kw">while</span> (i < chars.len) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L636"> <span class="tok-kw">switch</span> (chars[i]) {</span> <span class="line" id="L637"> <span class="tok-comment">// normal ascii character</span> </span> <span class="line" id="L638"> <span class="tok-number">0x20</span>...<span class="tok-number">0x21</span>, <span class="tok-number">0x23</span>...<span class="tok-number">0x5B</span>, <span class="tok-number">0x5D</span>...<span class="tok-number">0x7E</span> => {},</span> <span class="line" id="L639"> <span class="tok-number">0x00</span>...<span class="tok-number">0x1F</span>, <span class="tok-str">'\\'</span>, <span class="tok-str">'\"'</span> => {</span> <span class="line" id="L640"> <span class="tok-comment">// Always must escape these.</span> </span> <span class="line" id="L641"> <span class="tok-kw">try</span> writer.writeAll(chars[write_cursor..i]);</span> <span class="line" id="L642"> <span class="tok-kw">try</span> outputSpecialEscape(chars[i], writer);</span> <span class="line" id="L643"> write_cursor = i + <span class="tok-number">1</span>;</span> <span class="line" id="L644"> },</span> <span class="line" id="L645"> <span class="tok-number">0x7F</span>...<span class="tok-number">0xFF</span> => {</span> <span class="line" id="L646"> <span class="tok-kw">try</span> writer.writeAll(chars[write_cursor..i]);</span> <span class="line" id="L647"> <span class="tok-kw">const</span> ulen = std.unicode.utf8ByteSequenceLength(chars[i]) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L648"> <span class="tok-kw">const</span> codepoint = std.unicode.utf8Decode(chars[i..][<span class="tok-number">0</span>..ulen]) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L649"> <span class="tok-kw">try</span> outputUnicodeEscape(codepoint, writer);</span> <span class="line" id="L650"> i += ulen - <span class="tok-number">1</span>;</span> <span class="line" id="L651"> write_cursor = i + <span class="tok-number">1</span>;</span> <span class="line" id="L652"> },</span> <span class="line" id="L653"> }</span> <span class="line" id="L654"> }</span> <span class="line" id="L655"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L656"> <span class="tok-kw">while</span> (i < chars.len) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L657"> <span class="tok-kw">switch</span> (chars[i]) {</span> <span class="line" id="L658"> <span class="tok-comment">// normal bytes</span> </span> <span class="line" id="L659"> <span class="tok-number">0x20</span>...<span class="tok-number">0x21</span>, <span class="tok-number">0x23</span>...<span class="tok-number">0x5B</span>, <span class="tok-number">0x5D</span>...<span class="tok-number">0xFF</span> => {},</span> <span class="line" id="L660"> <span class="tok-number">0x00</span>...<span class="tok-number">0x1F</span>, <span class="tok-str">'\\'</span>, <span class="tok-str">'\"'</span> => {</span> <span class="line" id="L661"> <span class="tok-comment">// Always must escape these.</span> </span> <span class="line" id="L662"> <span class="tok-kw">try</span> writer.writeAll(chars[write_cursor..i]);</span> <span class="line" id="L663"> <span class="tok-kw">try</span> outputSpecialEscape(chars[i], writer);</span> <span class="line" id="L664"> write_cursor = i + <span class="tok-number">1</span>;</span> <span class="line" id="L665"> },</span> <span class="line" id="L666"> }</span> <span class="line" id="L667"> }</span> <span class="line" id="L668"> }</span> <span class="line" id="L669"> <span class="tok-kw">try</span> writer.writeAll(chars[write_cursor..chars.len]);</span> <span class="line" id="L670">}</span> <span class="line" id="L671"></span> <span class="line" id="L672"><span class="tok-kw">test</span> {</span> <span class="line" id="L673"> _ = <span class="tok-builtin">@import</span>(<span class="tok-str">"./stringify_test.zig"</span>);</span> <span class="line" id="L674">}</span> <span class="line" id="L675"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/json/scanner.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>json/scanner.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-comment">// Notes on standards compliance: https://datatracker.ietf.org/doc/html/rfc8259</span> </span> <span class="line" id="L2"><span class="tok-comment">// * RFC 8259 requires JSON documents be valid UTF-8,</span> </span> <span class="line" id="L3"><span class="tok-comment">// but makes an allowance for systems that are "part of a closed ecosystem".</span> </span> <span class="line" id="L4"><span class="tok-comment">// I have no idea what that's supposed to mean in the context of a standard specification.</span> </span> <span class="line" id="L5"><span class="tok-comment">// This implementation requires inputs to be valid UTF-8.</span> </span> <span class="line" id="L6"><span class="tok-comment">// * RFC 8259 contradicts itself regarding whether lowercase is allowed in \u hex digits,</span> </span> <span class="line" id="L7"><span class="tok-comment">// but this is probably a bug in the spec, and it's clear that lowercase is meant to be allowed.</span> </span> <span class="line" id="L8"><span class="tok-comment">// (RFC 5234 defines HEXDIG to only allow uppercase.)</span> </span> <span class="line" id="L9"><span class="tok-comment">// * When RFC 8259 refers to a "character", I assume they really mean a "Unicode scalar value".</span> </span> <span class="line" id="L10"><span class="tok-comment">// See http://www.unicode.org/glossary/#unicode_scalar_value .</span> </span> <span class="line" id="L11"><span class="tok-comment">// * RFC 8259 doesn't explicitly disallow unpaired surrogate halves in \u escape sequences,</span> </span> <span class="line" id="L12"><span class="tok-comment">// but vaguely implies that \u escapes are for encoding Unicode "characters" (i.e. Unicode scalar values?),</span> </span> <span class="line" id="L13"><span class="tok-comment">// which would mean that unpaired surrogate halves are forbidden.</span> </span> <span class="line" id="L14"><span class="tok-comment">// By contrast ECMA-404 (a competing(/compatible?) JSON standard, which JavaScript's JSON.parse() conforms to)</span> </span> <span class="line" id="L15"><span class="tok-comment">// explicitly allows unpaired surrogate halves.</span> </span> <span class="line" id="L16"><span class="tok-comment">// This implementation forbids unpaired surrogate halves in \u sequences.</span> </span> <span class="line" id="L17"><span class="tok-comment">// If a high surrogate half appears in a \u sequence,</span> </span> <span class="line" id="L18"><span class="tok-comment">// then a low surrogate half must immediately follow in \u notation.</span> </span> <span class="line" id="L19"><span class="tok-comment">// * RFC 8259 allows implementations to "accept non-JSON forms or extensions".</span> </span> <span class="line" id="L20"><span class="tok-comment">// This implementation does not accept any of that.</span> </span> <span class="line" id="L21"><span class="tok-comment">// * RFC 8259 allows implementations to put limits on "the size of texts",</span> </span> <span class="line" id="L22"><span class="tok-comment">// "the maximum depth of nesting", "the range and precision of numbers",</span> </span> <span class="line" id="L23"><span class="tok-comment">// and "the length and character contents of strings".</span> </span> <span class="line" id="L24"><span class="tok-comment">// This low-level implementation does not limit these,</span> </span> <span class="line" id="L25"><span class="tok-comment">// except where noted above, and except that nesting depth requires memory allocation.</span> </span> <span class="line" id="L26"><span class="tok-comment">// Note that this low-level API does not interpret numbers numerically,</span> </span> <span class="line" id="L27"><span class="tok-comment">// but simply emits their source form for some higher level code to make sense of.</span> </span> <span class="line" id="L28"><span class="tok-comment">// * This low-level implementation allows duplicate object keys,</span> </span> <span class="line" id="L29"><span class="tok-comment">// and key/value pairs are emitted in the order they appear in the input.</span> </span> <span class="line" id="L30"></span> <span class="line" id="L31"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L32"></span> <span class="line" id="L33"><span class="tok-kw">const</span> Allocator = std.mem.Allocator;</span> <span class="line" id="L34"><span class="tok-kw">const</span> ArrayList = std.ArrayList;</span> <span class="line" id="L35"><span class="tok-kw">const</span> assert = std.debug.assert;</span> <span class="line" id="L36"><span class="tok-kw">const</span> BitStack = std.BitStack;</span> <span class="line" id="L37"></span> <span class="line" id="L38"><span class="tok-comment">/// Scan the input and check for malformed JSON.</span></span> <span class="line" id="L39"><span class="tok-comment">/// On `SyntaxError` or `UnexpectedEndOfInput`, returns `false`.</span></span> <span class="line" id="L40"><span class="tok-comment">/// Returns any errors from the allocator as-is, which is unlikely,</span></span> <span class="line" id="L41"><span class="tok-comment">/// but can be caused by extreme nesting depth in the input.</span></span> <span class="line" id="L42"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">validate</span>(allocator: Allocator, s: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) Allocator.Error!<span class="tok-type">bool</span> {</span> <span class="line" id="L43"> <span class="tok-kw">var</span> scanner = Scanner.initCompleteInput(allocator, s);</span> <span class="line" id="L44"> <span class="tok-kw">defer</span> scanner.deinit();</span> <span class="line" id="L45"></span> <span class="line" id="L46"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L47"> <span class="tok-kw">const</span> token = scanner.next() <span class="tok-kw">catch</span> \|err\| <span class="tok-kw">switch</span> (err) {</span> <span class="line" id="L48"> <span class="tok-kw">error</span>.SyntaxError, <span class="tok-kw">error</span>.UnexpectedEndOfInput => <span class="tok-kw">return</span> <span class="tok-null">false</span>,</span> <span class="line" id="L49"> <span class="tok-kw">error</span>.OutOfMemory => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.OutOfMemory,</span> <span class="line" id="L50"> <span class="tok-kw">error</span>.BufferUnderrun => <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L51"> };</span> <span class="line" id="L52"> <span class="tok-kw">if</span> (token == .end_of_document) <span class="tok-kw">break</span>;</span> <span class="line" id="L53"> }</span> <span class="line" id="L54"></span> <span class="line" id="L55"> <span class="tok-kw">return</span> <span class="tok-null">true</span>;</span> <span class="line" id="L56">}</span> <span class="line" id="L57"></span> <span class="line" id="L58"><span class="tok-comment">/// The parsing errors are divided into two categories:</span></span> <span class="line" id="L59"><span class="tok-comment">/// * `SyntaxError` is for clearly malformed JSON documents,</span></span> <span class="line" id="L60"><span class="tok-comment">/// such as giving an input document that isn't JSON at all.</span></span> <span class="line" id="L61"><span class="tok-comment">/// * `UnexpectedEndOfInput` is for signaling that everything's been</span></span> <span class="line" id="L62"><span class="tok-comment">/// valid so far, but the input appears to be truncated for some reason.</span></span> <span class="line" id="L63"><span class="tok-comment">/// Note that a completely empty (or whitespace-only) input will give `UnexpectedEndOfInput`.</span></span> <span class="line" id="L64"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Error = <span class="tok-kw">error</span>{ SyntaxError, UnexpectedEndOfInput };</span> <span class="line" id="L65"></span> <span class="line" id="L66"><span class="tok-comment">/// Calls `std.json.Reader` with `std.json.default_buffer_size`.</span></span> <span class="line" id="L67"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">reader</span>(allocator: Allocator, io_reader: <span class="tok-kw">anytype</span>) Reader(default_buffer_size, <span class="tok-builtin">@TypeOf</span>(io_reader)) {</span> <span class="line" id="L68"> <span class="tok-kw">return</span> Reader(default_buffer_size, <span class="tok-builtin">@TypeOf</span>(io_reader)).init(allocator, io_reader);</span> <span class="line" id="L69">}</span> <span class="line" id="L70"><span class="tok-comment">/// Used by `json.reader`.</span></span> <span class="line" id="L71"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> default_buffer_size = <span class="tok-number">0x1000</span>;</span> <span class="line" id="L72"></span> <span class="line" id="L73"><span class="tok-comment">/// The tokens emitted by `std.json.Scanner` and `std.json.Reader` `.next()` functions follow this grammar:</span></span> <span class="line" id="L74"><span class="tok-comment">/// ```</span></span> <span class="line" id="L75"><span class="tok-comment">/// <document> = <value> .end_of_document</span></span> <span class="line" id="L76"><span class="tok-comment">/// <value> =</span></span> <span class="line" id="L77"><span class="tok-comment">/// \| <object></span></span> <span class="line" id="L78"><span class="tok-comment">/// \| <array></span></span> <span class="line" id="L79"><span class="tok-comment">/// \| <number></span></span> <span class="line" id="L80"><span class="tok-comment">/// \| <string></span></span> <span class="line" id="L81"><span class="tok-comment">/// \| .true</span></span> <span class="line" id="L82"><span class="tok-comment">/// \| .false</span></span> <span class="line" id="L83"><span class="tok-comment">/// \| .null</span></span> <span class="line" id="L84"><span class="tok-comment">/// <object> = .object_begin ( <string> <value> ) .object_end</span></span> <span class="line" id="L85"><span class="tok-comment">/// <array> = .array_begin ( <value> )* .array_end</span></span> <span class="line" id="L86"><span class="tok-comment">/// <number> = <It depends. See below.></span></span> <span class="line" id="L87"><span class="tok-comment">/// <string> = <It depends. See below.></span></span> <span class="line" id="L88"><span class="tok-comment">/// ```</span></span> <span class="line" id="L89"><span class="tok-comment">///</span></span> <span class="line" id="L90"><span class="tok-comment">/// What you get for `<number>` and `<string>` values depends on which `next()` method you call:</span></span> <span class="line" id="L91"><span class="tok-comment">///</span></span> <span class="line" id="L92"><span class="tok-comment">/// ```</span></span> <span class="line" id="L93"><span class="tok-comment">/// next():</span></span> <span class="line" id="L94"><span class="tok-comment">/// <number> = ( .partial_number ) .number</span></span> <span class="line" id="L95"><span class="tok-comment">/// <string> = ( <partial_string> )* .string</span></span> <span class="line" id="L96"><span class="tok-comment">/// <partial_string> =</span></span> <span class="line" id="L97"><span class="tok-comment">/// \| .partial_string</span></span> <span class="line" id="L98"><span class="tok-comment">/// \| .partial_string_escaped_1</span></span> <span class="line" id="L99"><span class="tok-comment">/// \| .partial_string_escaped_2</span></span> <span class="line" id="L100"><span class="tok-comment">/// \| .partial_string_escaped_3</span></span> <span class="line" id="L101"><span class="tok-comment">/// \| .partial_string_escaped_4</span></span> <span class="line" id="L102"><span class="tok-comment">///</span></span> <span class="line" id="L103"><span class="tok-comment">/// nextAlloc(..., .alloc_always):</span></span> <span class="line" id="L104"><span class="tok-comment">/// <number> = .allocated_number</span></span> <span class="line" id="L105"><span class="tok-comment">/// <string> = .allocated_string</span></span> <span class="line" id="L106"><span class="tok-comment">///</span></span> <span class="line" id="L107"><span class="tok-comment">/// nextAlloc(..., .alloc_if_needed):</span></span> <span class="line" id="L108"><span class="tok-comment">/// <number> =</span></span> <span class="line" id="L109"><span class="tok-comment">/// \| .number</span></span> <span class="line" id="L110"><span class="tok-comment">/// \| .allocated_number</span></span> <span class="line" id="L111"><span class="tok-comment">/// <string> =</span></span> <span class="line" id="L112"><span class="tok-comment">/// \| .string</span></span> <span class="line" id="L113"><span class="tok-comment">/// \| .allocated_string</span></span> <span class="line" id="L114"><span class="tok-comment">/// ```</span></span> <span class="line" id="L115"><span class="tok-comment">///</span></span> <span class="line" id="L116"><span class="tok-comment">/// For all tokens with a `[]const u8`, `[]u8`, or `[n]u8` payload, the payload represents the content of the value.</span></span> <span class="line" id="L117"><span class="tok-comment">/// For number values, this is the representation of the number exactly as it appears in the input.</span></span> <span class="line" id="L118"><span class="tok-comment">/// For strings, this is the content of the string after resolving escape sequences.</span></span> <span class="line" id="L119"><span class="tok-comment">///</span></span> <span class="line" id="L120"><span class="tok-comment">/// For `.allocated_number` and `.allocated_string`, the `[]u8` payloads are allocations made with the given allocator.</span></span> <span class="line" id="L121"><span class="tok-comment">/// You are responsible for managing that memory. `json.Reader.deinit()` does not free those allocations.</span></span> <span class="line" id="L122"><span class="tok-comment">///</span></span> <span class="line" id="L123"><span class="tok-comment">/// The `.partial_` tokens indicate that a value spans multiple input buffers or that a string contains escape sequences.</span></span> <span class="line" id="L124"><span class="tok-comment">/// To get a complete value in memory, you need to concatenate the values yourself.</span></span> <span class="line" id="L125"><span class="tok-comment">/// Calling `nextAlloc()` does this for you, and returns an `.allocated_` token with the result.</span></span> <span class="line" id="L126"><span class="tok-comment">///</span></span> <span class="line" id="L127"><span class="tok-comment">/// For tokens with a `[]const u8` payload, the payload is a slice into the current input buffer.</span></span> <span class="line" id="L128"><span class="tok-comment">/// The memory may become undefined during the next call to `json.Scanner.feedInput()`</span></span> <span class="line" id="L129"><span class="tok-comment">/// or any `json.Reader` method whose return error set includes `json.Error`.</span></span> <span class="line" id="L130"><span class="tok-comment">/// To keep the value persistently, it recommended to make a copy or to use `.alloc_always`,</span></span> <span class="line" id="L131"><span class="tok-comment">/// which makes a copy for you.</span></span> <span class="line" id="L132"><span class="tok-comment">///</span></span> <span class="line" id="L133"><span class="tok-comment">/// Note that `.number` and `.string` tokens that follow `.partial_` tokens may have `0` length to indicate that</span></span> <span class="line" id="L134"><span class="tok-comment">/// the previously partial value is completed with no additional bytes.</span></span> <span class="line" id="L135"><span class="tok-comment">/// (This can happen when the break between input buffers happens to land on the exact end of a value. E.g. `"[1234"`, `"]"`.)</span></span> <span class="line" id="L136"><span class="tok-comment">/// `.partial_` tokens never have `0` length.</span></span> <span class="line" id="L137"><span class="tok-comment">///</span></span> <span class="line" id="L138"><span class="tok-comment">/// The recommended strategy for using the different `next()` methods is something like this:</span></span> <span class="line" id="L139"><span class="tok-comment">///</span></span> <span class="line" id="L140"><span class="tok-comment">/// When you're expecting an object key, use `.alloc_if_needed`.</span></span> <span class="line" id="L141"><span class="tok-comment">/// You often don't need a copy of the key string to persist; you might just check which field it is.</span></span> <span class="line" id="L142"><span class="tok-comment">/// In the case that the key happens to require an allocation, free it immediately after checking it.</span></span> <span class="line" id="L143"><span class="tok-comment">///</span></span> <span class="line" id="L144"><span class="tok-comment">/// When you're expecting a meaningful string value (such as on the right of a `:`),</span></span> <span class="line" id="L145"><span class="tok-comment">/// use `.alloc_always` in order to keep the value valid throughout parsing the rest of the document.</span></span> <span class="line" id="L146"><span class="tok-comment">///</span></span> <span class="line" id="L147"><span class="tok-comment">/// When you're expecting a number value, use `.alloc_if_needed`.</span></span> <span class="line" id="L148"><span class="tok-comment">/// You're probably going to be parsing the string representation of the number into a numeric representation,</span></span> <span class="line" id="L149"><span class="tok-comment">/// so you need the complete string representation only temporarily.</span></span> <span class="line" id="L150"><span class="tok-comment">///</span></span> <span class="line" id="L151"><span class="tok-comment">/// When you're skipping an unrecognized value, use `skipValue()`.</span></span> <span class="line" id="L152"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Token = <span class="tok-kw">union</span>(<span class="tok-kw">enum</span>) {</span> <span class="line" id="L153"> object_begin,</span> <span class="line" id="L154"> object_end,</span> <span class="line" id="L155"> array_begin,</span> <span class="line" id="L156"> array_end,</span> <span class="line" id="L157"></span> <span class="line" id="L158"> <span class="tok-null">true</span>,</span> <span class="line" id="L159"> <span class="tok-null">false</span>,</span> <span class="line" id="L160"> <span class="tok-null">null</span>,</span> <span class="line" id="L161"></span> <span class="line" id="L162"> number: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L163"> partial_number: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L164"> allocated_number: []<span class="tok-type">u8</span>,</span> <span class="line" id="L165"></span> <span class="line" id="L166"> string: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L167"> partial_string: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L168"> partial_string_escaped_1: [<span class="tok-number">1</span>]<span class="tok-type">u8</span>,</span> <span class="line" id="L169"> partial_string_escaped_2: [<span class="tok-number">2</span>]<span class="tok-type">u8</span>,</span> <span class="line" id="L170"> partial_string_escaped_3: [<span class="tok-number">3</span>]<span class="tok-type">u8</span>,</span> <span class="line" id="L171"> partial_string_escaped_4: [<span class="tok-number">4</span>]<span class="tok-type">u8</span>,</span> <span class="line" id="L172"> allocated_string: []<span class="tok-type">u8</span>,</span> <span class="line" id="L173"></span> <span class="line" id="L174"> end_of_document,</span> <span class="line" id="L175">};</span> <span class="line" id="L176"></span> <span class="line" id="L177"><span class="tok-comment">/// This is only used in `peekNextTokenType()` and gives a categorization based on the first byte of the next token that will be emitted from a `next()` call.</span></span> <span class="line" id="L178"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> TokenType = <span class="tok-kw">enum</span> {</span> <span class="line" id="L179"> object_begin,</span> <span class="line" id="L180"> object_end,</span> <span class="line" id="L181"> array_begin,</span> <span class="line" id="L182"> array_end,</span> <span class="line" id="L183"> <span class="tok-null">true</span>,</span> <span class="line" id="L184"> <span class="tok-null">false</span>,</span> <span class="line" id="L185"> <span class="tok-null">null</span>,</span> <span class="line" id="L186"> number,</span> <span class="line" id="L187"> string,</span> <span class="line" id="L188"> end_of_document,</span> <span class="line" id="L189">};</span> <span class="line" id="L190"></span> <span class="line" id="L191"><span class="tok-comment">/// To enable diagnostics, declare `var diagnostics = Diagnostics{};` then call `source.enableDiagnostics(&diagnostics);`</span></span> <span class="line" id="L192"><span class="tok-comment">/// where `source` is either a `std.json.Reader` or a `std.json.Scanner` that has just been initialized.</span></span> <span class="line" id="L193"><span class="tok-comment">/// At any time, notably just after an error, call `getLine()`, `getColumn()`, and/or `getByteOffset()`</span></span> <span class="line" id="L194"><span class="tok-comment">/// to get meaningful information from this.</span></span> <span class="line" id="L195"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Diagnostics = <span class="tok-kw">struct</span> {</span> <span class="line" id="L196"> line_number: <span class="tok-type">u64</span> = <span class="tok-number">1</span>,</span> <span class="line" id="L197"> line_start_cursor: <span class="tok-type">usize</span> = <span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@bitCast</span>(<span class="tok-builtin">@as</span>(<span class="tok-type">isize</span>, -<span class="tok-number">1</span>))), <span class="tok-comment">// Start just "before" the input buffer to get a 1-based column for line 1.</span> </span> <span class="line" id="L198"> total_bytes_before_current_input: <span class="tok-type">u64</span> = <span class="tok-number">0</span>,</span> <span class="line" id="L199"> cursor_pointer: <span class="tok-kw">const</span> <span class="tok-type">usize</span> = <span class="tok-null">undefined</span>,</span> <span class="line" id="L200"></span> <span class="line" id="L201"> <span class="tok-comment">/// Starts at 1.</span></span> <span class="line" id="L202"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">getLine</span>(self: <span class="tok-kw">const</span> <span class="tok-builtin">@This</span>()) <span class="tok-type">u64</span> {</span> <span class="line" id="L203"> <span class="tok-kw">return</span> self.line_number;</span> <span class="line" id="L204"> }</span> <span class="line" id="L205"> <span class="tok-comment">/// Starts at 1.</span></span> <span class="line" id="L206"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">getColumn</span>(self: <span class="tok-kw">const</span> <span class="tok-builtin">@This</span>()) <span class="tok-type">u64</span> {</span> <span class="line" id="L207"> <span class="tok-kw">return</span> self.cursor_pointer.* -% self.line_start_cursor;</span> <span class="line" id="L208"> }</span> <span class="line" id="L209"> <span class="tok-comment">/// Starts at 0. Measures the byte offset since the start of the input.</span></span> <span class="line" id="L210"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">getByteOffset</span>(self: <span class="tok-kw">const</span> <span class="tok-builtin">@This</span>()) <span class="tok-type">u64</span> {</span> <span class="line" id="L211"> <span class="tok-kw">return</span> self.total_bytes_before_current_input + self.cursor_pointer.;</span> <span class="line" id="L212"> }</span> <span class="line" id="L213">};</span> <span class="line" id="L214"></span> <span class="line" id="L215"><span class="tok-comment">/// See the documentation for `std.json.Token`.</span></span> <span class="line" id="L216"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> AllocWhen = <span class="tok-kw">enum</span> { alloc_if_needed, alloc_always };</span> <span class="line" id="L217"></span> <span class="line" id="L218"><span class="tok-comment">/// For security, the maximum size allocated to store a single string or number value is limited to 4MiB by default.</span></span> <span class="line" id="L219"><span class="tok-comment">/// This limit can be specified by calling `nextAllocMax()` instead of `nextAlloc()`.</span></span> <span class="line" id="L220"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> default_max_value_len = <span class="tok-number">4</span> * <span class="tok-number">1024</span> * <span class="tok-number">1024</span>;</span> <span class="line" id="L221"></span> <span class="line" id="L222"><span class="tok-comment">/// Connects a `std.io.Reader` to a `std.json.Scanner`.</span></span> <span class="line" id="L223"><span class="tok-comment">/// All `next()` methods here handle `error.BufferUnderrun` from `std.json.Scanner`, and then read from the reader.</span></span> <span class="line" id="L224"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">Reader</span>(<span class="tok-kw">comptime</span> buffer_size: <span class="tok-type">usize</span>, <span class="tok-kw">comptime</span> ReaderType: <span class="tok-type">type</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L225"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L226"> scanner: Scanner,</span> <span class="line" id="L227"> reader: ReaderType,</span> <span class="line" id="L228"></span> <span class="line" id="L229"> buffer: [buffer_size]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>,</span> <span class="line" id="L230"></span> <span class="line" id="L231"> <span class="tok-comment">/// The allocator is only used to track `[]` and `{}` nesting levels.</span></span> <span class="line" id="L232"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">init</span>(allocator: Allocator, io_reader: ReaderType) <span class="tok-builtin">@This</span>() {</span> <span class="line" id="L233"> <span class="tok-kw">return</span> .{</span> <span class="line" id="L234"> .scanner = Scanner.initStreaming(allocator),</span> <span class="line" id="L235"> .reader = io_reader,</span> <span class="line" id="L236"> };</span> <span class="line" id="L237"> }</span> <span class="line" id="L238"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">deinit</span>(self: <span class="tok-builtin">@This</span>()) <span class="tok-type">void</span> {</span> <span class="line" id="L239"> self.scanner.deinit();</span> <span class="line" id="L240"> self.* = <span class="tok-null">undefined</span>;</span> <span class="line" id="L241"> }</span> <span class="line" id="L242"></span> <span class="line" id="L243"> <span class="tok-comment">/// Calls `std.json.Scanner.enableDiagnostics`.</span></span> <span class="line" id="L244"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">enableDiagnostics</span>(self: <span class="tok-builtin">@This</span>(), diagnostics: Diagnostics) <span class="tok-type">void</span> {</span> <span class="line" id="L245"> self.scanner.enableDiagnostics(diagnostics);</span> <span class="line" id="L246"> }</span> <span class="line" id="L247"></span> <span class="line" id="L248"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> NextError = ReaderType.Error \|\| Error \|\| Allocator.Error;</span> <span class="line" id="L249"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> SkipError = NextError;</span> <span class="line" id="L250"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> AllocError = NextError \|\| <span class="tok-kw">error</span>{ValueTooLong};</span> <span class="line" id="L251"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> PeekError = ReaderType.Error \|\| Error;</span> <span class="line" id="L252"></span> <span class="line" id="L253"> <span class="tok-comment">/// Equivalent to `nextAllocMax(allocator, when, default_max_value_len);`</span></span> <span class="line" id="L254"> <span class="tok-comment">/// See also `std.json.Token` for documentation of `nextAlloc()` function behavior.</span></span> <span class="line" id="L255"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">nextAlloc</span>(self: <span class="tok-builtin">@This</span>(), allocator: Allocator, when: AllocWhen) AllocError!Token {</span> <span class="line" id="L256"> <span class="tok-kw">return</span> self.nextAllocMax(allocator, when, default_max_value_len);</span> <span class="line" id="L257"> }</span> <span class="line" id="L258"> <span class="tok-comment">/// See also `std.json.Token` for documentation of `nextAlloc()` function behavior.</span></span> <span class="line" id="L259"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">nextAllocMax</span>(self: <span class="tok-builtin">@This</span>(), allocator: Allocator, when: AllocWhen, max_value_len: <span class="tok-type">usize</span>) AllocError!Token {</span> <span class="line" id="L260"> <span class="tok-kw">const</span> token_type = <span class="tok-kw">try</span> self.peekNextTokenType();</span> <span class="line" id="L261"> <span class="tok-kw">switch</span> (token_type) {</span> <span class="line" id="L262"> .number, .string => {</span> <span class="line" id="L263"> <span class="tok-kw">var</span> value_list = ArrayList(<span class="tok-type">u8</span>).init(allocator);</span> <span class="line" id="L264"> <span class="tok-kw">errdefer</span> {</span> <span class="line" id="L265"> value_list.deinit();</span> <span class="line" id="L266"> }</span> <span class="line" id="L267"> <span class="tok-kw">if</span> (<span class="tok-kw">try</span> self.allocNextIntoArrayListMax(&value_list, when, max_value_len)) \|slice\| {</span> <span class="line" id="L268"> <span class="tok-kw">return</span> <span class="tok-kw">if</span> (token_type == .number)</span> <span class="line" id="L269"> Token{ .number = slice }</span> <span class="line" id="L270"> <span class="tok-kw">else</span></span> <span class="line" id="L271"> Token{ .string = slice };</span> <span class="line" id="L272"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L273"> <span class="tok-kw">return</span> <span class="tok-kw">if</span> (token_type == .number)</span> <span class="line" id="L274"> Token{ .allocated_number = <span class="tok-kw">try</span> value_list.toOwnedSlice() }</span> <span class="line" id="L275"> <span class="tok-kw">else</span></span> <span class="line" id="L276"> Token{ .allocated_string = <span class="tok-kw">try</span> value_list.toOwnedSlice() };</span> <span class="line" id="L277"> }</span> <span class="line" id="L278"> },</span> <span class="line" id="L279"></span> <span class="line" id="L280"> <span class="tok-comment">// Simple tokens never alloc.</span> </span> <span class="line" id="L281"> .object_begin,</span> <span class="line" id="L282"> .object_end,</span> <span class="line" id="L283"> .array_begin,</span> <span class="line" id="L284"> .array_end,</span> <span class="line" id="L285"> .<span class="tok-null">true</span>,</span> <span class="line" id="L286"> .<span class="tok-null">false</span>,</span> <span class="line" id="L287"> .<span class="tok-null">null</span>,</span> <span class="line" id="L288"> .end_of_document,</span> <span class="line" id="L289"> => <span class="tok-kw">return</span> <span class="tok-kw">try</span> self.next(),</span> <span class="line" id="L290"> }</span> <span class="line" id="L291"> }</span> <span class="line" id="L292"></span> <span class="line" id="L293"> <span class="tok-comment">/// Equivalent to `allocNextIntoArrayListMax(value_list, when, default_max_value_len);`</span></span> <span class="line" id="L294"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">allocNextIntoArrayList</span>(self: <span class="tok-builtin">@This</span>(), value_list: ArrayList(<span class="tok-type">u8</span>), when: AllocWhen) AllocError!?[]<span class="tok-kw">const</span> <span class="tok-type">u8</span> {</span> <span class="line" id="L295"> <span class="tok-kw">return</span> self.allocNextIntoArrayListMax(value_list, when, default_max_value_len);</span> <span class="line" id="L296"> }</span> <span class="line" id="L297"> <span class="tok-comment">/// Calls `std.json.Scanner.allocNextIntoArrayListMax` and handles `error.BufferUnderrun`.</span></span> <span class="line" id="L298"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">allocNextIntoArrayListMax</span>(self: <span class="tok-builtin">@This</span>(), value_list: ArrayList(<span class="tok-type">u8</span>), when: AllocWhen, max_value_len: <span class="tok-type">usize</span>) AllocError!?[]<span class="tok-kw">const</span> <span class="tok-type">u8</span> {</span> <span class="line" id="L299"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L300"> <span class="tok-kw">return</span> self.scanner.allocNextIntoArrayListMax(value_list, when, max_value_len) <span class="tok-kw">catch</span> \|err\| <span class="tok-kw">switch</span> (err) {</span> <span class="line" id="L301"> <span class="tok-kw">error</span>.BufferUnderrun => {</span> <span class="line" id="L302"> <span class="tok-kw">try</span> self.refillBuffer();</span> <span class="line" id="L303"> <span class="tok-kw">continue</span>;</span> <span class="line" id="L304"> },</span> <span class="line" id="L305"> <span class="tok-kw">else</span> => \|other_err\| <span class="tok-kw">return</span> other_err,</span> <span class="line" id="L306"> };</span> <span class="line" id="L307"> }</span> <span class="line" id="L308"> }</span> <span class="line" id="L309"></span> <span class="line" id="L310"> <span class="tok-comment">/// Like `std.json.Scanner.skipValue`, but handles `error.BufferUnderrun`.</span></span> <span class="line" id="L311"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">skipValue</span>(self: <span class="tok-builtin">@This</span>()) SkipError!<span class="tok-type">void</span> {</span> <span class="line" id="L312"> <span class="tok-kw">switch</span> (<span class="tok-kw">try</span> self.peekNextTokenType()) {</span> <span class="line" id="L313"> .object_begin, .array_begin => {</span> <span class="line" id="L314"> <span class="tok-kw">try</span> self.skipUntilStackHeight(self.stackHeight());</span> <span class="line" id="L315"> },</span> <span class="line" id="L316"> .number, .string => {</span> <span class="line" id="L317"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L318"> <span class="tok-kw">switch</span> (<span class="tok-kw">try</span> self.next()) {</span> <span class="line" id="L319"> .partial_number,</span> <span class="line" id="L320"> .partial_string,</span> <span class="line" id="L321"> .partial_string_escaped_1,</span> <span class="line" id="L322"> .partial_string_escaped_2,</span> <span class="line" id="L323"> .partial_string_escaped_3,</span> <span class="line" id="L324"> .partial_string_escaped_4,</span> <span class="line" id="L325"> => <span class="tok-kw">continue</span>,</span> <span class="line" id="L326"></span> <span class="line" id="L327"> .number, .string => <span class="tok-kw">break</span>,</span> <span class="line" id="L328"></span> <span class="line" id="L329"> <span class="tok-kw">else</span> => <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L330"> }</span> <span class="line" id="L331"> }</span> <span class="line" id="L332"> },</span> <span class="line" id="L333"> .<span class="tok-null">true</span>, .<span class="tok-null">false</span>, .<span class="tok-null">null</span> => {</span> <span class="line" id="L334"> _ = <span class="tok-kw">try</span> self.next();</span> <span class="line" id="L335"> },</span> <span class="line" id="L336"></span> <span class="line" id="L337"> .object_end, .array_end, .end_of_document => <span class="tok-kw">unreachable</span>, <span class="tok-comment">// Attempt to skip a non-value token.</span> </span> <span class="line" id="L338"> }</span> <span class="line" id="L339"> }</span> <span class="line" id="L340"> <span class="tok-comment">/// Like `std.json.Scanner.skipUntilStackHeight()` but handles `error.BufferUnderrun`.</span></span> <span class="line" id="L341"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">skipUntilStackHeight</span>(self: <span class="tok-builtin">@This</span>(), terminal_stack_height: <span class="tok-type">usize</span>) NextError!<span class="tok-type">void</span> {</span> <span class="line" id="L342"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L343"> <span class="tok-kw">return</span> self.scanner.skipUntilStackHeight(terminal_stack_height) <span class="tok-kw">catch</span> \|err\| <span class="tok-kw">switch</span> (err) {</span> <span class="line" id="L344"> <span class="tok-kw">error</span>.BufferUnderrun => {</span> <span class="line" id="L345"> <span class="tok-kw">try</span> self.refillBuffer();</span> <span class="line" id="L346"> <span class="tok-kw">continue</span>;</span> <span class="line" id="L347"> },</span> <span class="line" id="L348"> <span class="tok-kw">else</span> => \|other_err\| <span class="tok-kw">return</span> other_err,</span> <span class="line" id="L349"> };</span> <span class="line" id="L350"> }</span> <span class="line" id="L351"> }</span> <span class="line" id="L352"></span> <span class="line" id="L353"> <span class="tok-comment">/// Calls `std.json.Scanner.stackHeight`.</span></span> <span class="line" id="L354"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">stackHeight</span>(self: <span class="tok-kw">const</span> <span class="tok-builtin">@This</span>()) <span class="tok-type">usize</span> {</span> <span class="line" id="L355"> <span class="tok-kw">return</span> self.scanner.stackHeight();</span> <span class="line" id="L356"> }</span> <span class="line" id="L357"> <span class="tok-comment">/// Calls `std.json.Scanner.ensureTotalStackCapacity`.</span></span> <span class="line" id="L358"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">ensureTotalStackCapacity</span>(self: <span class="tok-builtin">@This</span>(), height: <span class="tok-type">usize</span>) Allocator.Error!<span class="tok-type">void</span> {</span> <span class="line" id="L359"> <span class="tok-kw">try</span> self.scanner.ensureTotalStackCapacity(height);</span> <span class="line" id="L360"> }</span> <span class="line" id="L361"></span> <span class="line" id="L362"> <span class="tok-comment">/// See `std.json.Token` for documentation of this function.</span></span> <span class="line" id="L363"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">next</span>(self: <span class="tok-builtin">@This</span>()) NextError!Token {</span> <span class="line" id="L364"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L365"> <span class="tok-kw">return</span> self.scanner.next() <span class="tok-kw">catch</span> \|err\| <span class="tok-kw">switch</span> (err) {</span> <span class="line" id="L366"> <span class="tok-kw">error</span>.BufferUnderrun => {</span> <span class="line" id="L367"> <span class="tok-kw">try</span> self.refillBuffer();</span> <span class="line" id="L368"> <span class="tok-kw">continue</span>;</span> <span class="line" id="L369"> },</span> <span class="line" id="L370"> <span class="tok-kw">else</span> => \|other_err\| <span class="tok-kw">return</span> other_err,</span> <span class="line" id="L371"> };</span> <span class="line" id="L372"> }</span> <span class="line" id="L373"> }</span> <span class="line" id="L374"></span> <span class="line" id="L375"> <span class="tok-comment">/// See `std.json.Scanner.peekNextTokenType()`.</span></span> <span class="line" id="L376"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">peekNextTokenType</span>(self: <span class="tok-builtin">@This</span>()) PeekError!TokenType {</span> <span class="line" id="L377"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L378"> <span class="tok-kw">return</span> self.scanner.peekNextTokenType() <span class="tok-kw">catch</span> \|err\| <span class="tok-kw">switch</span> (err) {</span> <span class="line" id="L379"> <span class="tok-kw">error</span>.BufferUnderrun => {</span> <span class="line" id="L380"> <span class="tok-kw">try</span> self.refillBuffer();</span> <span class="line" id="L381"> <span class="tok-kw">continue</span>;</span> <span class="line" id="L382"> },</span> <span class="line" id="L383"> <span class="tok-kw">else</span> => \|other_err\| <span class="tok-kw">return</span> other_err,</span> <span class="line" id="L384"> };</span> <span class="line" id="L385"> }</span> <span class="line" id="L386"> }</span> <span class="line" id="L387"></span> <span class="line" id="L388"> <span class="tok-kw">fn</span> <span class="tok-fn">refillBuffer</span>(self: <span class="tok-builtin">@This</span>()) ReaderType.Error!<span class="tok-type">void</span> {</span> <span class="line" id="L389"> <span class="tok-kw">const</span> input = self.buffer[<span class="tok-number">0</span>..<span class="tok-kw">try</span> self.reader.read(self.buffer[<span class="tok-number">0</span>..])];</span> <span class="line" id="L390"> <span class="tok-kw">if</span> (input.len > <span class="tok-number">0</span>) {</span> <span class="line" id="L391"> self.scanner.feedInput(input);</span> <span class="line" id="L392"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L393"> self.scanner.endInput();</span> <span class="line" id="L394"> }</span> <span class="line" id="L395"> }</span> <span class="line" id="L396"> };</span> <span class="line" id="L397">}</span> <span class="line" id="L398"></span> <span class="line" id="L399"><span class="tok-comment">/// The lowest level parsing API in this package;</span></span> <span class="line" id="L400"><span class="tok-comment">/// supports streaming input with a low memory footprint.</span></span> <span class="line" id="L401"><span class="tok-comment">/// The memory requirement is `O(d)` where d is the nesting depth of `[]` or `{}` containers in the input.</span></span> <span class="line" id="L402"><span class="tok-comment">/// Specifically `d/8` bytes are required for this purpose,</span></span> <span class="line" id="L403"><span class="tok-comment">/// with some extra buffer according to the implementation of `std.ArrayList`.</span></span> <span class="line" id="L404"><span class="tok-comment">///</span></span> <span class="line" id="L405"><span class="tok-comment">/// This scanner can emit partial tokens; see `std.json.Token`.</span></span> <span class="line" id="L406"><span class="tok-comment">/// The input to this class is a sequence of input buffers that you must supply one at a time.</span></span> <span class="line" id="L407"><span class="tok-comment">/// Call `feedInput()` with the first buffer, then call `next()` repeatedly until `error.BufferUnderrun` is returned.</span></span> <span class="line" id="L408"><span class="tok-comment">/// Then call `feedInput()` again and so forth.</span></span> <span class="line" id="L409"><span class="tok-comment">/// Call `endInput()` when the last input buffer has been given to `feedInput()`, either immediately after calling `feedInput()`,</span></span> <span class="line" id="L410"><span class="tok-comment">/// or when `error.BufferUnderrun` requests more data and there is no more.</span></span> <span class="line" id="L411"><span class="tok-comment">/// Be sure to call `next()` after calling `endInput()` until `Token.end_of_document` has been returned.</span></span> <span class="line" id="L412"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Scanner = <span class="tok-kw">struct</span> {</span> <span class="line" id="L413"> state: State = .value,</span> <span class="line" id="L414"> string_is_object_key: <span class="tok-type">bool</span> = <span class="tok-null">false</span>,</span> <span class="line" id="L415"> stack: BitStack,</span> <span class="line" id="L416"> value_start: <span class="tok-type">usize</span> = <span class="tok-null">undefined</span>,</span> <span class="line" id="L417"> unicode_code_point: <span class="tok-type">u21</span> = <span class="tok-null">undefined</span>,</span> <span class="line" id="L418"></span> <span class="line" id="L419"> input: []<span class="tok-kw">const</span> <span class="tok-type">u8</span> = <span class="tok-str">""</span>,</span> <span class="line" id="L420"> cursor: <span class="tok-type">usize</span> = <span class="tok-number">0</span>,</span> <span class="line" id="L421"> is_end_of_input: <span class="tok-type">bool</span> = <span class="tok-null">false</span>,</span> <span class="line" id="L422"> diagnostics: ?Diagnostics = <span class="tok-null">null</span>,</span> <span class="line" id="L423"></span> <span class="line" id="L424"> <span class="tok-comment">/// The allocator is only used to track `[]` and `{}` nesting levels.</span></span> <span class="line" id="L425"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">initStreaming</span>(allocator: Allocator) <span class="tok-builtin">@This</span>() {</span> <span class="line" id="L426"> <span class="tok-kw">return</span> .{</span> <span class="line" id="L427"> .stack = BitStack.init(allocator),</span> <span class="line" id="L428"> };</span> <span class="line" id="L429"> }</span> <span class="line" id="L430"> <span class="tok-comment">/// Use this if your input is a single slice.</span></span> <span class="line" id="L431"> <span class="tok-comment">/// This is effectively equivalent to:</span></span> <span class="line" id="L432"> <span class="tok-comment">/// ```</span></span> <span class="line" id="L433"> <span class="tok-comment">/// initStreaming(allocator);</span></span> <span class="line" id="L434"> <span class="tok-comment">/// feedInput(complete_input);</span></span> <span class="line" id="L435"> <span class="tok-comment">/// endInput();</span></span> <span class="line" id="L436"> <span class="tok-comment">/// ```</span></span> <span class="line" id="L437"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">initCompleteInput</span>(allocator: Allocator, complete_input: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-builtin">@This</span>() {</span> <span class="line" id="L438"> <span class="tok-kw">return</span> .{</span> <span class="line" id="L439"> .stack = BitStack.init(allocator),</span> <span class="line" id="L440"> .input = complete_input,</span> <span class="line" id="L441"> .is_end_of_input = <span class="tok-null">true</span>,</span> <span class="line" id="L442"> };</span> <span class="line" id="L443"> }</span> <span class="line" id="L444"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">deinit</span>(self: <span class="tok-builtin">@This</span>()) <span class="tok-type">void</span> {</span> <span class="line" id="L445"> self.stack.deinit();</span> <span class="line" id="L446"> self. = <span class="tok-null">undefined</span>;</span> <span class="line" id="L447"> }</span> <span class="line" id="L448"></span> <span class="line" id="L449"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">enableDiagnostics</span>(self: <span class="tok-builtin">@This</span>(), diagnostics: Diagnostics) <span class="tok-type">void</span> {</span> <span class="line" id="L450"> diagnostics.cursor_pointer = &self.cursor;</span> <span class="line" id="L451"> self.diagnostics = diagnostics;</span> <span class="line" id="L452"> }</span> <span class="line" id="L453"></span> <span class="line" id="L454"> <span class="tok-comment">/// Call this whenever you get `error.BufferUnderrun` from `next()`.</span></span> <span class="line" id="L455"> <span class="tok-comment">/// When there is no more input to provide, call `endInput()`.</span></span> <span class="line" id="L456"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">feedInput</span>(self: <span class="tok-builtin">@This</span>(), input: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L457"> assert(self.cursor == self.input.len); <span class="tok-comment">// Not done with the last input slice.</span> </span> <span class="line" id="L458"> <span class="tok-kw">if</span> (self.diagnostics) \|diag\| {</span> <span class="line" id="L459"> diag.total_bytes_before_current_input += self.input.len;</span> <span class="line" id="L460"> <span class="tok-comment">// This usually goes "negative" to measure how far before the beginning</span> </span> <span class="line" id="L461"> <span class="tok-comment">// of the new buffer the current line started.</span> </span> <span class="line" id="L462"> diag.line_start_cursor -%= self.cursor;</span> <span class="line" id="L463"> }</span> <span class="line" id="L464"> self.input = input;</span> <span class="line" id="L465"> self.cursor = <span class="tok-number">0</span>;</span> <span class="line" id="L466"> self.value_start = <span class="tok-number">0</span>;</span> <span class="line" id="L467"> }</span> <span class="line" id="L468"> <span class="tok-comment">/// Call this when you will no longer call `feedInput()` anymore.</span></span> <span class="line" id="L469"> <span class="tok-comment">/// This can be called either immediately after the last `feedInput()`,</span></span> <span class="line" id="L470"> <span class="tok-comment">/// or at any time afterward, such as when getting `error.BufferUnderrun` from `next()`.</span></span> <span class="line" id="L471"> <span class="tok-comment">/// Don't forget to call `next()` after `endInput()` until you get `.end_of_document`.</span></span> <span class="line" id="L472"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">endInput</span>(self: <span class="tok-builtin">@This</span>()) <span class="tok-type">void</span> {</span> <span class="line" id="L473"> self.is_end_of_input = <span class="tok-null">true</span>;</span> <span class="line" id="L474"> }</span> <span class="line" id="L475"></span> <span class="line" id="L476"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> NextError = Error \|\| Allocator.Error \|\| <span class="tok-kw">error</span>{BufferUnderrun};</span> <span class="line" id="L477"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> AllocError = Error \|\| Allocator.Error \|\| <span class="tok-kw">error</span>{ValueTooLong};</span> <span class="line" id="L478"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> PeekError = Error \|\| <span class="tok-kw">error</span>{BufferUnderrun};</span> <span class="line" id="L479"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> SkipError = Error \|\| Allocator.Error;</span> <span class="line" id="L480"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> AllocIntoArrayListError = AllocError \|\| <span class="tok-kw">error</span>{BufferUnderrun};</span> <span class="line" id="L481"></span> <span class="line" id="L482"> <span class="tok-comment">/// Equivalent to `nextAllocMax(allocator, when, default_max_value_len);`</span></span> <span class="line" id="L483"> <span class="tok-comment">/// This function is only available after `endInput()` (or `initCompleteInput()`) has been called.</span></span> <span class="line" id="L484"> <span class="tok-comment">/// See also `std.json.Token` for documentation of `nextAlloc()` function behavior.</span></span> <span class="line" id="L485"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">nextAlloc</span>(self: <span class="tok-builtin">@This</span>(), allocator: Allocator, when: AllocWhen) AllocError!Token {</span> <span class="line" id="L486"> <span class="tok-kw">return</span> self.nextAllocMax(allocator, when, default_max_value_len);</span> <span class="line" id="L487"> }</span> <span class="line" id="L488"></span> <span class="line" id="L489"> <span class="tok-comment">/// This function is only available after `endInput()` (or `initCompleteInput()`) has been called.</span></span> <span class="line" id="L490"> <span class="tok-comment">/// See also `std.json.Token` for documentation of `nextAlloc()` function behavior.</span></span> <span class="line" id="L491"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">nextAllocMax</span>(self: <span class="tok-builtin">@This</span>(), allocator: Allocator, when: AllocWhen, max_value_len: <span class="tok-type">usize</span>) AllocError!Token {</span> <span class="line" id="L492"> assert(self.is_end_of_input); <span class="tok-comment">// This function is not available in streaming mode.</span> </span> <span class="line" id="L493"> <span class="tok-kw">const</span> token_type = self.peekNextTokenType() <span class="tok-kw">catch</span> \|e\| <span class="tok-kw">switch</span> (e) {</span> <span class="line" id="L494"> <span class="tok-kw">error</span>.BufferUnderrun => <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L495"> <span class="tok-kw">else</span> => \|err\| <span class="tok-kw">return</span> err,</span> <span class="line" id="L496"> };</span> <span class="line" id="L497"> <span class="tok-kw">switch</span> (token_type) {</span> <span class="line" id="L498"> .number, .string => {</span> <span class="line" id="L499"> <span class="tok-kw">var</span> value_list = ArrayList(<span class="tok-type">u8</span>).init(allocator);</span> <span class="line" id="L500"> <span class="tok-kw">errdefer</span> {</span> <span class="line" id="L501"> value_list.deinit();</span> <span class="line" id="L502"> }</span> <span class="line" id="L503"> <span class="tok-kw">if</span> (self.allocNextIntoArrayListMax(&value_list, when, max_value_len) <span class="tok-kw">catch</span> \|e\| <span class="tok-kw">switch</span> (e) {</span> <span class="line" id="L504"> <span class="tok-kw">error</span>.BufferUnderrun => <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L505"> <span class="tok-kw">else</span> => \|err\| <span class="tok-kw">return</span> err,</span> <span class="line" id="L506"> }) \|slice\| {</span> <span class="line" id="L507"> <span class="tok-kw">return</span> <span class="tok-kw">if</span> (token_type == .number)</span> <span class="line" id="L508"> Token{ .number = slice }</span> <span class="line" id="L509"> <span class="tok-kw">else</span></span> <span class="line" id="L510"> Token{ .string = slice };</span> <span class="line" id="L511"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L512"> <span class="tok-kw">return</span> <span class="tok-kw">if</span> (token_type == .number)</span> <span class="line" id="L513"> Token{ .allocated_number = <span class="tok-kw">try</span> value_list.toOwnedSlice() }</span> <span class="line" id="L514"> <span class="tok-kw">else</span></span> <span class="line" id="L515"> Token{ .allocated_string = <span class="tok-kw">try</span> value_list.toOwnedSlice() };</span> <span class="line" id="L516"> }</span> <span class="line" id="L517"> },</span> <span class="line" id="L518"></span> <span class="line" id="L519"> <span class="tok-comment">// Simple tokens never alloc.</span> </span> <span class="line" id="L520"> .object_begin,</span> <span class="line" id="L521"> .object_end,</span> <span class="line" id="L522"> .array_begin,</span> <span class="line" id="L523"> .array_end,</span> <span class="line" id="L524"> .<span class="tok-null">true</span>,</span> <span class="line" id="L525"> .<span class="tok-null">false</span>,</span> <span class="line" id="L526"> .<span class="tok-null">null</span>,</span> <span class="line" id="L527"> .end_of_document,</span> <span class="line" id="L528"> => <span class="tok-kw">return</span> self.next() <span class="tok-kw">catch</span> \|e\| <span class="tok-kw">switch</span> (e) {</span> <span class="line" id="L529"> <span class="tok-kw">error</span>.BufferUnderrun => <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L530"> <span class="tok-kw">else</span> => \|err\| <span class="tok-kw">return</span> err,</span> <span class="line" id="L531"> },</span> <span class="line" id="L532"> }</span> <span class="line" id="L533"> }</span> <span class="line" id="L534"></span> <span class="line" id="L535"> <span class="tok-comment">/// Equivalent to `allocNextIntoArrayListMax(value_list, when, default_max_value_len);`</span></span> <span class="line" id="L536"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">allocNextIntoArrayList</span>(self: <span class="tok-builtin">@This</span>(), value_list: ArrayList(<span class="tok-type">u8</span>), when: AllocWhen) AllocIntoArrayListError!?[]<span class="tok-kw">const</span> <span class="tok-type">u8</span> {</span> <span class="line" id="L537"> <span class="tok-kw">return</span> self.allocNextIntoArrayListMax(value_list, when, default_max_value_len);</span> <span class="line" id="L538"> }</span> <span class="line" id="L539"> <span class="tok-comment">/// The next token type must be either `.number` or `.string`. See `peekNextTokenType()`.</span></span> <span class="line" id="L540"> <span class="tok-comment">/// When allocation is not necessary with `.alloc_if_needed`,</span></span> <span class="line" id="L541"> <span class="tok-comment">/// this method returns the content slice from the input buffer, and `value_list` is not touched.</span></span> <span class="line" id="L542"> <span class="tok-comment">/// When allocation is necessary or with `.alloc_always`, this method concatenates partial tokens into the given `value_list`,</span></span> <span class="line" id="L543"> <span class="tok-comment">/// and returns `null` once the final `.number` or `.string` token has been written into it.</span></span> <span class="line" id="L544"> <span class="tok-comment">/// In case of an `error.BufferUnderrun`, partial values will be left in the given value_list.</span></span> <span class="line" id="L545"> <span class="tok-comment">/// The given `value_list` is never reset by this method, so an `error.BufferUnderrun` situation</span></span> <span class="line" id="L546"> <span class="tok-comment">/// can be resumed by passing the same array list in again.</span></span> <span class="line" id="L547"> <span class="tok-comment">/// This method does not indicate whether the token content being returned is for a `.number` or `.string` token type;</span></span> <span class="line" id="L548"> <span class="tok-comment">/// the caller of this method is expected to know which type of token is being processed.</span></span> <span class="line" id="L549"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">allocNextIntoArrayListMax</span>(self: <span class="tok-builtin">@This</span>(), value_list: ArrayList(<span class="tok-type">u8</span>), when: AllocWhen, max_value_len: <span class="tok-type">usize</span>) AllocIntoArrayListError!?[]<span class="tok-kw">const</span> <span class="tok-type">u8</span> {</span> <span class="line" id="L550"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L551"> <span class="tok-kw">const</span> token = <span class="tok-kw">try</span> self.next();</span> <span class="line" id="L552"> <span class="tok-kw">switch</span> (token) {</span> <span class="line" id="L553"> <span class="tok-comment">// Accumulate partial values.</span> </span> <span class="line" id="L554"> .partial_number, .partial_string => \|slice\| {</span> <span class="line" id="L555"> <span class="tok-kw">try</span> appendSlice(value_list, slice, max_value_len);</span> <span class="line" id="L556"> },</span> <span class="line" id="L557"> .partial_string_escaped_1 => \|buf\| {</span> <span class="line" id="L558"> <span class="tok-kw">try</span> appendSlice(value_list, buf[<span class="tok-number">0</span>..], max_value_len);</span> <span class="line" id="L559"> },</span> <span class="line" id="L560"> .partial_string_escaped_2 => \|buf\| {</span> <span class="line" id="L561"> <span class="tok-kw">try</span> appendSlice(value_list, buf[<span class="tok-number">0</span>..], max_value_len);</span> <span class="line" id="L562"> },</span> <span class="line" id="L563"> .partial_string_escaped_3 => \|buf\| {</span> <span class="line" id="L564"> <span class="tok-kw">try</span> appendSlice(value_list, buf[<span class="tok-number">0</span>..], max_value_len);</span> <span class="line" id="L565"> },</span> <span class="line" id="L566"> .partial_string_escaped_4 => \|buf\| {</span> <span class="line" id="L567"> <span class="tok-kw">try</span> appendSlice(value_list, buf[<span class="tok-number">0</span>..], max_value_len);</span> <span class="line" id="L568"> },</span> <span class="line" id="L569"></span> <span class="line" id="L570"> <span class="tok-comment">// Return complete values.</span> </span> <span class="line" id="L571"> .number => \|slice\| {</span> <span class="line" id="L572"> <span class="tok-kw">if</span> (when == .alloc_if_needed <span class="tok-kw">and</span> value_list.items.len == <span class="tok-number">0</span>) {</span> <span class="line" id="L573"> <span class="tok-comment">// No alloc necessary.</span> </span> <span class="line" id="L574"> <span class="tok-kw">return</span> slice;</span> <span class="line" id="L575"> }</span> <span class="line" id="L576"> <span class="tok-kw">try</span> appendSlice(value_list, slice, max_value_len);</span> <span class="line" id="L577"> <span class="tok-comment">// The token is complete.</span> </span> <span class="line" id="L578"> <span class="tok-kw">return</span> <span class="tok-null">null</span>;</span> <span class="line" id="L579"> },</span> <span class="line" id="L580"> .string => \|slice\| {</span> <span class="line" id="L581"> <span class="tok-kw">if</span> (when == .alloc_if_needed <span class="tok-kw">and</span> value_list.items.len == <span class="tok-number">0</span>) {</span> <span class="line" id="L582"> <span class="tok-comment">// No alloc necessary.</span> </span> <span class="line" id="L583"> <span class="tok-kw">return</span> slice;</span> <span class="line" id="L584"> }</span> <span class="line" id="L585"> <span class="tok-kw">try</span> appendSlice(value_list, slice, max_value_len);</span> <span class="line" id="L586"> <span class="tok-comment">// The token is complete.</span> </span> <span class="line" id="L587"> <span class="tok-kw">return</span> <span class="tok-null">null</span>;</span> <span class="line" id="L588"> },</span> <span class="line" id="L589"></span> <span class="line" id="L590"> .object_begin,</span> <span class="line" id="L591"> .object_end,</span> <span class="line" id="L592"> .array_begin,</span> <span class="line" id="L593"> .array_end,</span> <span class="line" id="L594"> .<span class="tok-null">true</span>,</span> <span class="line" id="L595"> .<span class="tok-null">false</span>,</span> <span class="line" id="L596"> .<span class="tok-null">null</span>,</span> <span class="line" id="L597"> .end_of_document,</span> <span class="line" id="L598"> => <span class="tok-kw">unreachable</span>, <span class="tok-comment">// Only .number and .string token types are allowed here. Check peekNextTokenType() before calling this.</span> </span> <span class="line" id="L599"></span> <span class="line" id="L600"> .allocated_number, .allocated_string => <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L601"> }</span> <span class="line" id="L602"> }</span> <span class="line" id="L603"> }</span> <span class="line" id="L604"></span> <span class="line" id="L605"> <span class="tok-comment">/// This function is only available after `endInput()` (or `initCompleteInput()`) has been called.</span></span> <span class="line" id="L606"> <span class="tok-comment">/// If the next token type is `.object_begin` or `.array_begin`,</span></span> <span class="line" id="L607"> <span class="tok-comment">/// this function calls `next()` repeatedly until the corresponding `.object_end` or `.array_end` is found.</span></span> <span class="line" id="L608"> <span class="tok-comment">/// If the next token type is `.number` or `.string`,</span></span> <span class="line" id="L609"> <span class="tok-comment">/// this function calls `next()` repeatedly until the (non `.partial_`) `.number` or `.string` token is found.</span></span> <span class="line" id="L610"> <span class="tok-comment">/// If the next token type is `.true`, `.false`, or `.null`, this function calls `next()` once.</span></span> <span class="line" id="L611"> <span class="tok-comment">/// The next token type must not be `.object_end`, `.array_end`, or `.end_of_document`;</span></span> <span class="line" id="L612"> <span class="tok-comment">/// see `peekNextTokenType()`.</span></span> <span class="line" id="L613"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">skipValue</span>(self: <span class="tok-builtin">@This</span>()) SkipError!<span class="tok-type">void</span> {</span> <span class="line" id="L614"> assert(self.is_end_of_input); <span class="tok-comment">// This function is not available in streaming mode.</span> </span> <span class="line" id="L615"> <span class="tok-kw">switch</span> (self.peekNextTokenType() <span class="tok-kw">catch</span> \|e\| <span class="tok-kw">switch</span> (e) {</span> <span class="line" id="L616"> <span class="tok-kw">error</span>.BufferUnderrun => <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L617"> <span class="tok-kw">else</span> => \|err\| <span class="tok-kw">return</span> err,</span> <span class="line" id="L618"> }) {</span> <span class="line" id="L619"> .object_begin, .array_begin => {</span> <span class="line" id="L620"> self.skipUntilStackHeight(self.stackHeight()) <span class="tok-kw">catch</span> \|e\| <span class="tok-kw">switch</span> (e) {</span> <span class="line" id="L621"> <span class="tok-kw">error</span>.BufferUnderrun => <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L622"> <span class="tok-kw">else</span> => \|err\| <span class="tok-kw">return</span> err,</span> <span class="line" id="L623"> };</span> <span class="line" id="L624"> },</span> <span class="line" id="L625"> .number, .string => {</span> <span class="line" id="L626"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L627"> <span class="tok-kw">switch</span> (self.next() <span class="tok-kw">catch</span> \|e\| <span class="tok-kw">switch</span> (e) {</span> <span class="line" id="L628"> <span class="tok-kw">error</span>.BufferUnderrun => <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L629"> <span class="tok-kw">else</span> => \|err\| <span class="tok-kw">return</span> err,</span> <span class="line" id="L630"> }) {</span> <span class="line" id="L631"> .partial_number,</span> <span class="line" id="L632"> .partial_string,</span> <span class="line" id="L633"> .partial_string_escaped_1,</span> <span class="line" id="L634"> .partial_string_escaped_2,</span> <span class="line" id="L635"> .partial_string_escaped_3,</span> <span class="line" id="L636"> .partial_string_escaped_4,</span> <span class="line" id="L637"> => <span class="tok-kw">continue</span>,</span> <span class="line" id="L638"></span> <span class="line" id="L639"> .number, .string => <span class="tok-kw">break</span>,</span> <span class="line" id="L640"></span> <span class="line" id="L641"> <span class="tok-kw">else</span> => <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L642"> }</span> <span class="line" id="L643"> }</span> <span class="line" id="L644"> },</span> <span class="line" id="L645"> .<span class="tok-null">true</span>, .<span class="tok-null">false</span>, .<span class="tok-null">null</span> => {</span> <span class="line" id="L646"> _ = self.next() <span class="tok-kw">catch</span> \|e\| <span class="tok-kw">switch</span> (e) {</span> <span class="line" id="L647"> <span class="tok-kw">error</span>.BufferUnderrun => <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L648"> <span class="tok-kw">else</span> => \|err\| <span class="tok-kw">return</span> err,</span> <span class="line" id="L649"> };</span> <span class="line" id="L650"> },</span> <span class="line" id="L651"></span> <span class="line" id="L652"> .object_end, .array_end, .end_of_document => <span class="tok-kw">unreachable</span>, <span class="tok-comment">// Attempt to skip a non-value token.</span> </span> <span class="line" id="L653"> }</span> <span class="line" id="L654"> }</span> <span class="line" id="L655"></span> <span class="line" id="L656"> <span class="tok-comment">/// Skip tokens until an `.object_end` or `.array_end` token results in a `stackHeight()` equal the given stack height.</span></span> <span class="line" id="L657"> <span class="tok-comment">/// Unlike `skipValue()`, this function is available in streaming mode.</span></span> <span class="line" id="L658"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">skipUntilStackHeight</span>(self: <span class="tok-builtin">@This</span>(), terminal_stack_height: <span class="tok-type">usize</span>) NextError!<span class="tok-type">void</span> {</span> <span class="line" id="L659"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L660"> <span class="tok-kw">switch</span> (<span class="tok-kw">try</span> self.next()) {</span> <span class="line" id="L661"> .object_end, .array_end => {</span> <span class="line" id="L662"> <span class="tok-kw">if</span> (self.stackHeight() == terminal_stack_height) <span class="tok-kw">break</span>;</span> <span class="line" id="L663"> },</span> <span class="line" id="L664"> .end_of_document => <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L665"> <span class="tok-kw">else</span> => <span class="tok-kw">continue</span>,</span> <span class="line" id="L666"> }</span> <span class="line" id="L667"> }</span> <span class="line" id="L668"> }</span> <span class="line" id="L669"></span> <span class="line" id="L670"> <span class="tok-comment">/// The depth of `{}` or `[]` nesting levels at the current position.</span></span> <span class="line" id="L671"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">stackHeight</span>(self: <span class="tok-kw">const</span> <span class="tok-builtin">@This</span>()) <span class="tok-type">usize</span> {</span> <span class="line" id="L672"> <span class="tok-kw">return</span> self.stack.bit_len;</span> <span class="line" id="L673"> }</span> <span class="line" id="L674"></span> <span class="line" id="L675"> <span class="tok-comment">/// Pre allocate memory to hold the given number of nesting levels.</span></span> <span class="line" id="L676"> <span class="tok-comment">/// `stackHeight()` up to the given number will not cause allocations.</span></span> <span class="line" id="L677"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">ensureTotalStackCapacity</span>(self: <span class="tok-builtin">@This</span>(), height: <span class="tok-type">usize</span>) Allocator.Error!<span class="tok-type">void</span> {</span> <span class="line" id="L678"> <span class="tok-kw">try</span> self.stack.ensureTotalCapacity(height);</span> <span class="line" id="L679"> }</span> <span class="line" id="L680"></span> <span class="line" id="L681"> <span class="tok-comment">/// See `std.json.Token` for documentation of this function.</span></span> <span class="line" id="L682"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">next</span>(self: <span class="tok-builtin">@This</span>()) NextError!Token {</span> <span class="line" id="L683"> state_loop: <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L684"> <span class="tok-kw">switch</span> (self.state) {</span> <span class="line" id="L685"> .value => {</span> <span class="line" id="L686"> <span class="tok-kw">switch</span> (<span class="tok-kw">try</span> self.skipWhitespaceExpectByte()) {</span> <span class="line" id="L687"> <span class="tok-comment">// Object, Array</span> </span> <span class="line" id="L688"> <span class="tok-str">'{'</span> => {</span> <span class="line" id="L689"> <span class="tok-kw">try</span> self.stack.push(OBJECT_MODE);</span> <span class="line" id="L690"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L691"> self.state = .object_start;</span> <span class="line" id="L692"> <span class="tok-kw">return</span> .object_begin;</span> <span class="line" id="L693"> },</span> <span class="line" id="L694"> <span class="tok-str">'['</span> => {</span> <span class="line" id="L695"> <span class="tok-kw">try</span> self.stack.push(ARRAY_MODE);</span> <span class="line" id="L696"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L697"> self.state = .array_start;</span> <span class="line" id="L698"> <span class="tok-kw">return</span> .array_begin;</span> <span class="line" id="L699"> },</span> <span class="line" id="L700"></span> <span class="line" id="L701"> <span class="tok-comment">// String</span> </span> <span class="line" id="L702"> <span class="tok-str">'"'</span> => {</span> <span class="line" id="L703"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L704"> self.value_start = self.cursor;</span> <span class="line" id="L705"> self.state = .string;</span> <span class="line" id="L706"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L707"> },</span> <span class="line" id="L708"></span> <span class="line" id="L709"> <span class="tok-comment">// Number</span> </span> <span class="line" id="L710"> <span class="tok-str">'1'</span>...<span class="tok-str">'9'</span> => {</span> <span class="line" id="L711"> self.value_start = self.cursor;</span> <span class="line" id="L712"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L713"> self.state = .number_int;</span> <span class="line" id="L714"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L715"> },</span> <span class="line" id="L716"> <span class="tok-str">'0'</span> => {</span> <span class="line" id="L717"> self.value_start = self.cursor;</span> <span class="line" id="L718"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L719"> self.state = .number_leading_zero;</span> <span class="line" id="L720"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L721"> },</span> <span class="line" id="L722"> <span class="tok-str">'-'</span> => {</span> <span class="line" id="L723"> self.value_start = self.cursor;</span> <span class="line" id="L724"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L725"> self.state = .number_minus;</span> <span class="line" id="L726"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L727"> },</span> <span class="line" id="L728"></span> <span class="line" id="L729"> <span class="tok-comment">// literal values</span> </span> <span class="line" id="L730"> <span class="tok-str">'t'</span> => {</span> <span class="line" id="L731"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L732"> self.state = .literal_t;</span> <span class="line" id="L733"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L734"> },</span> <span class="line" id="L735"> <span class="tok-str">'f'</span> => {</span> <span class="line" id="L736"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L737"> self.state = .literal_f;</span> <span class="line" id="L738"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L739"> },</span> <span class="line" id="L740"> <span class="tok-str">'n'</span> => {</span> <span class="line" id="L741"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L742"> self.state = .literal_n;</span> <span class="line" id="L743"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L744"> },</span> <span class="line" id="L745"></span> <span class="line" id="L746"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError,</span> <span class="line" id="L747"> }</span> <span class="line" id="L748"> },</span> <span class="line" id="L749"></span> <span class="line" id="L750"> .post_value => {</span> <span class="line" id="L751"> <span class="tok-kw">if</span> (<span class="tok-kw">try</span> self.skipWhitespaceCheckEnd()) <span class="tok-kw">return</span> .end_of_document;</span> <span class="line" id="L752"></span> <span class="line" id="L753"> <span class="tok-kw">const</span> c = self.input[self.cursor];</span> <span class="line" id="L754"> <span class="tok-kw">if</span> (self.string_is_object_key) {</span> <span class="line" id="L755"> self.string_is_object_key = <span class="tok-null">false</span>;</span> <span class="line" id="L756"> <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L757"> <span class="tok-str">':'</span> => {</span> <span class="line" id="L758"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L759"> self.state = .value;</span> <span class="line" id="L760"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L761"> },</span> <span class="line" id="L762"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError,</span> <span class="line" id="L763"> }</span> <span class="line" id="L764"> }</span> <span class="line" id="L765"></span> <span class="line" id="L766"> <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L767"> <span class="tok-str">'}'</span> => {</span> <span class="line" id="L768"> <span class="tok-kw">if</span> (self.stack.pop() != OBJECT_MODE) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError;</span> <span class="line" id="L769"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L770"> <span class="tok-comment">// stay in .post_value state.</span> </span> <span class="line" id="L771"> <span class="tok-kw">return</span> .object_end;</span> <span class="line" id="L772"> },</span> <span class="line" id="L773"> <span class="tok-str">']'</span> => {</span> <span class="line" id="L774"> <span class="tok-kw">if</span> (self.stack.pop() != ARRAY_MODE) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError;</span> <span class="line" id="L775"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L776"> <span class="tok-comment">// stay in .post_value state.</span> </span> <span class="line" id="L777"> <span class="tok-kw">return</span> .array_end;</span> <span class="line" id="L778"> },</span> <span class="line" id="L779"> <span class="tok-str">','</span> => {</span> <span class="line" id="L780"> <span class="tok-kw">switch</span> (self.stack.peek()) {</span> <span class="line" id="L781"> OBJECT_MODE => {</span> <span class="line" id="L782"> self.state = .object_post_comma;</span> <span class="line" id="L783"> },</span> <span class="line" id="L784"> ARRAY_MODE => {</span> <span class="line" id="L785"> self.state = .value;</span> <span class="line" id="L786"> },</span> <span class="line" id="L787"> }</span> <span class="line" id="L788"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L789"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L790"> },</span> <span class="line" id="L791"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError,</span> <span class="line" id="L792"> }</span> <span class="line" id="L793"> },</span> <span class="line" id="L794"></span> <span class="line" id="L795"> .object_start => {</span> <span class="line" id="L796"> <span class="tok-kw">switch</span> (<span class="tok-kw">try</span> self.skipWhitespaceExpectByte()) {</span> <span class="line" id="L797"> <span class="tok-str">'"'</span> => {</span> <span class="line" id="L798"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L799"> self.value_start = self.cursor;</span> <span class="line" id="L800"> self.state = .string;</span> <span class="line" id="L801"> self.string_is_object_key = <span class="tok-null">true</span>;</span> <span class="line" id="L802"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L803"> },</span> <span class="line" id="L804"> <span class="tok-str">'}'</span> => {</span> <span class="line" id="L805"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L806"> _ = self.stack.pop();</span> <span class="line" id="L807"> self.state = .post_value;</span> <span class="line" id="L808"> <span class="tok-kw">return</span> .object_end;</span> <span class="line" id="L809"> },</span> <span class="line" id="L810"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError,</span> <span class="line" id="L811"> }</span> <span class="line" id="L812"> },</span> <span class="line" id="L813"> .object_post_comma => {</span> <span class="line" id="L814"> <span class="tok-kw">switch</span> (<span class="tok-kw">try</span> self.skipWhitespaceExpectByte()) {</span> <span class="line" id="L815"> <span class="tok-str">'"'</span> => {</span> <span class="line" id="L816"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L817"> self.value_start = self.cursor;</span> <span class="line" id="L818"> self.state = .string;</span> <span class="line" id="L819"> self.string_is_object_key = <span class="tok-null">true</span>;</span> <span class="line" id="L820"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L821"> },</span> <span class="line" id="L822"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError,</span> <span class="line" id="L823"> }</span> <span class="line" id="L824"> },</span> <span class="line" id="L825"></span> <span class="line" id="L826"> .array_start => {</span> <span class="line" id="L827"> <span class="tok-kw">switch</span> (<span class="tok-kw">try</span> self.skipWhitespaceExpectByte()) {</span> <span class="line" id="L828"> <span class="tok-str">']'</span> => {</span> <span class="line" id="L829"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L830"> _ = self.stack.pop();</span> <span class="line" id="L831"> self.state = .post_value;</span> <span class="line" id="L832"> <span class="tok-kw">return</span> .array_end;</span> <span class="line" id="L833"> },</span> <span class="line" id="L834"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L835"> self.state = .value;</span> <span class="line" id="L836"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L837"> },</span> <span class="line" id="L838"> }</span> <span class="line" id="L839"> },</span> <span class="line" id="L840"></span> <span class="line" id="L841"> .number_minus => {</span> <span class="line" id="L842"> <span class="tok-kw">if</span> (self.cursor >= self.input.len) <span class="tok-kw">return</span> self.endOfBufferInNumber(<span class="tok-null">false</span>);</span> <span class="line" id="L843"> <span class="tok-kw">switch</span> (self.input[self.cursor]) {</span> <span class="line" id="L844"> <span class="tok-str">'0'</span> => {</span> <span class="line" id="L845"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L846"> self.state = .number_leading_zero;</span> <span class="line" id="L847"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L848"> },</span> <span class="line" id="L849"> <span class="tok-str">'1'</span>...<span class="tok-str">'9'</span> => {</span> <span class="line" id="L850"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L851"> self.state = .number_int;</span> <span class="line" id="L852"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L853"> },</span> <span class="line" id="L854"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError,</span> <span class="line" id="L855"> }</span> <span class="line" id="L856"> },</span> <span class="line" id="L857"> .number_leading_zero => {</span> <span class="line" id="L858"> <span class="tok-kw">if</span> (self.cursor >= self.input.len) <span class="tok-kw">return</span> self.endOfBufferInNumber(<span class="tok-null">true</span>);</span> <span class="line" id="L859"> <span class="tok-kw">switch</span> (self.input[self.cursor]) {</span> <span class="line" id="L860"> <span class="tok-str">'.'</span> => {</span> <span class="line" id="L861"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L862"> self.state = .number_post_dot;</span> <span class="line" id="L863"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L864"> },</span> <span class="line" id="L865"> <span class="tok-str">'e'</span>, <span class="tok-str">'E'</span> => {</span> <span class="line" id="L866"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L867"> self.state = .number_post_e;</span> <span class="line" id="L868"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L869"> },</span> <span class="line" id="L870"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L871"> self.state = .post_value;</span> <span class="line" id="L872"> <span class="tok-kw">return</span> Token{ .number = self.takeValueSlice() };</span> <span class="line" id="L873"> },</span> <span class="line" id="L874"> }</span> <span class="line" id="L875"> },</span> <span class="line" id="L876"> .number_int => {</span> <span class="line" id="L877"> <span class="tok-kw">while</span> (self.cursor < self.input.len) : (self.cursor += <span class="tok-number">1</span>) {</span> <span class="line" id="L878"> <span class="tok-kw">switch</span> (self.input[self.cursor]) {</span> <span class="line" id="L879"> <span class="tok-str">'0'</span>...<span class="tok-str">'9'</span> => <span class="tok-kw">continue</span>,</span> <span class="line" id="L880"> <span class="tok-str">'.'</span> => {</span> <span class="line" id="L881"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L882"> self.state = .number_post_dot;</span> <span class="line" id="L883"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L884"> },</span> <span class="line" id="L885"> <span class="tok-str">'e'</span>, <span class="tok-str">'E'</span> => {</span> <span class="line" id="L886"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L887"> self.state = .number_post_e;</span> <span class="line" id="L888"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L889"> },</span> <span class="line" id="L890"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L891"> self.state = .post_value;</span> <span class="line" id="L892"> <span class="tok-kw">return</span> Token{ .number = self.takeValueSlice() };</span> <span class="line" id="L893"> },</span> <span class="line" id="L894"> }</span> <span class="line" id="L895"> }</span> <span class="line" id="L896"> <span class="tok-kw">return</span> self.endOfBufferInNumber(<span class="tok-null">true</span>);</span> <span class="line" id="L897"> },</span> <span class="line" id="L898"> .number_post_dot => {</span> <span class="line" id="L899"> <span class="tok-kw">if</span> (self.cursor >= self.input.len) <span class="tok-kw">return</span> self.endOfBufferInNumber(<span class="tok-null">false</span>);</span> <span class="line" id="L900"> <span class="tok-kw">switch</span> (<span class="tok-kw">try</span> self.expectByte()) {</span> <span class="line" id="L901"> <span class="tok-str">'0'</span>...<span class="tok-str">'9'</span> => {</span> <span class="line" id="L902"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L903"> self.state = .number_frac;</span> <span class="line" id="L904"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L905"> },</span> <span class="line" id="L906"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError,</span> <span class="line" id="L907"> }</span> <span class="line" id="L908"> },</span> <span class="line" id="L909"> .number_frac => {</span> <span class="line" id="L910"> <span class="tok-kw">while</span> (self.cursor < self.input.len) : (self.cursor += <span class="tok-number">1</span>) {</span> <span class="line" id="L911"> <span class="tok-kw">switch</span> (self.input[self.cursor]) {</span> <span class="line" id="L912"> <span class="tok-str">'0'</span>...<span class="tok-str">'9'</span> => <span class="tok-kw">continue</span>,</span> <span class="line" id="L913"> <span class="tok-str">'e'</span>, <span class="tok-str">'E'</span> => {</span> <span class="line" id="L914"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L915"> self.state = .number_post_e;</span> <span class="line" id="L916"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L917"> },</span> <span class="line" id="L918"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L919"> self.state = .post_value;</span> <span class="line" id="L920"> <span class="tok-kw">return</span> Token{ .number = self.takeValueSlice() };</span> <span class="line" id="L921"> },</span> <span class="line" id="L922"> }</span> <span class="line" id="L923"> }</span> <span class="line" id="L924"> <span class="tok-kw">return</span> self.endOfBufferInNumber(<span class="tok-null">true</span>);</span> <span class="line" id="L925"> },</span> <span class="line" id="L926"> .number_post_e => {</span> <span class="line" id="L927"> <span class="tok-kw">if</span> (self.cursor >= self.input.len) <span class="tok-kw">return</span> self.endOfBufferInNumber(<span class="tok-null">false</span>);</span> <span class="line" id="L928"> <span class="tok-kw">switch</span> (self.input[self.cursor]) {</span> <span class="line" id="L929"> <span class="tok-str">'0'</span>...<span class="tok-str">'9'</span> => {</span> <span class="line" id="L930"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L931"> self.state = .number_exp;</span> <span class="line" id="L932"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L933"> },</span> <span class="line" id="L934"> <span class="tok-str">'+'</span>, <span class="tok-str">'-'</span> => {</span> <span class="line" id="L935"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L936"> self.state = .number_post_e_sign;</span> <span class="line" id="L937"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L938"> },</span> <span class="line" id="L939"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError,</span> <span class="line" id="L940"> }</span> <span class="line" id="L941"> },</span> <span class="line" id="L942"> .number_post_e_sign => {</span> <span class="line" id="L943"> <span class="tok-kw">if</span> (self.cursor >= self.input.len) <span class="tok-kw">return</span> self.endOfBufferInNumber(<span class="tok-null">false</span>);</span> <span class="line" id="L944"> <span class="tok-kw">switch</span> (self.input[self.cursor]) {</span> <span class="line" id="L945"> <span class="tok-str">'0'</span>...<span class="tok-str">'9'</span> => {</span> <span class="line" id="L946"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L947"> self.state = .number_exp;</span> <span class="line" id="L948"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L949"> },</span> <span class="line" id="L950"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError,</span> <span class="line" id="L951"> }</span> <span class="line" id="L952"> },</span> <span class="line" id="L953"> .number_exp => {</span> <span class="line" id="L954"> <span class="tok-kw">while</span> (self.cursor < self.input.len) : (self.cursor += <span class="tok-number">1</span>) {</span> <span class="line" id="L955"> <span class="tok-kw">switch</span> (self.input[self.cursor]) {</span> <span class="line" id="L956"> <span class="tok-str">'0'</span>...<span class="tok-str">'9'</span> => <span class="tok-kw">continue</span>,</span> <span class="line" id="L957"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L958"> self.state = .post_value;</span> <span class="line" id="L959"> <span class="tok-kw">return</span> Token{ .number = self.takeValueSlice() };</span> <span class="line" id="L960"> },</span> <span class="line" id="L961"> }</span> <span class="line" id="L962"> }</span> <span class="line" id="L963"> <span class="tok-kw">return</span> self.endOfBufferInNumber(<span class="tok-null">true</span>);</span> <span class="line" id="L964"> },</span> <span class="line" id="L965"></span> <span class="line" id="L966"> .string => {</span> <span class="line" id="L967"> <span class="tok-kw">while</span> (self.cursor < self.input.len) : (self.cursor += <span class="tok-number">1</span>) {</span> <span class="line" id="L968"> <span class="tok-kw">switch</span> (self.input[self.cursor]) {</span> <span class="line" id="L969"> <span class="tok-number">0</span>...<span class="tok-number">0x1f</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError, <span class="tok-comment">// Bare ASCII control code in string.</span> </span> <span class="line" id="L970"></span> <span class="line" id="L971"> <span class="tok-comment">// ASCII plain text.</span> </span> <span class="line" id="L972"> <span class="tok-number">0x20</span>...(<span class="tok-str">'"'</span> - <span class="tok-number">1</span>), (<span class="tok-str">'"'</span> + <span class="tok-number">1</span>)...(<span class="tok-str">'\\'</span> - <span class="tok-number">1</span>), (<span class="tok-str">'\\'</span> + <span class="tok-number">1</span>)...<span class="tok-number">0x7F</span> => <span class="tok-kw">continue</span>,</span> <span class="line" id="L973"></span> <span class="line" id="L974"> <span class="tok-comment">// Special characters.</span> </span> <span class="line" id="L975"> <span class="tok-str">'"'</span> => {</span> <span class="line" id="L976"> <span class="tok-kw">const</span> result = Token{ .string = self.takeValueSlice() };</span> <span class="line" id="L977"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L978"> self.state = .post_value;</span> <span class="line" id="L979"> <span class="tok-kw">return</span> result;</span> <span class="line" id="L980"> },</span> <span class="line" id="L981"> <span class="tok-str">'\\'</span> => {</span> <span class="line" id="L982"> <span class="tok-kw">const</span> slice = self.takeValueSlice();</span> <span class="line" id="L983"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L984"> self.state = .string_backslash;</span> <span class="line" id="L985"> <span class="tok-kw">if</span> (slice.len > <span class="tok-number">0</span>) <span class="tok-kw">return</span> Token{ .partial_string = slice };</span> <span class="line" id="L986"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L987"> },</span> <span class="line" id="L988"></span> <span class="line" id="L989"> <span class="tok-comment">// UTF-8 validation.</span> </span> <span class="line" id="L990"> <span class="tok-comment">// See http://unicode.org/mail-arch/unicode-ml/y2003-m02/att-0467/01-The_Algorithm_to_Valide_an_UTF-8_String</span> </span> <span class="line" id="L991"> <span class="tok-number">0xC2</span>...<span class="tok-number">0xDF</span> => {</span> <span class="line" id="L992"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L993"> self.state = .string_utf8_last_byte;</span> <span class="line" id="L994"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L995"> },</span> <span class="line" id="L996"> <span class="tok-number">0xE0</span> => {</span> <span class="line" id="L997"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L998"> self.state = .string_utf8_second_to_last_byte_guard_against_overlong;</span> <span class="line" id="L999"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L1000"> },</span> <span class="line" id="L1001"> <span class="tok-number">0xE1</span>...<span class="tok-number">0xEC</span>, <span class="tok-number">0xEE</span>...<span class="tok-number">0xEF</span> => {</span> <span class="line" id="L1002"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L1003"> self.state = .string_utf8_second_to_last_byte;</span> <span class="line" id="L1004"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L1005"> },</span> <span class="line" id="L1006"> <span class="tok-number">0xED</span> => {</span> <span class="line" id="L1007"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L1008"> self.state = .string_utf8_second_to_last_byte_guard_against_surrogate_half;</span> <span class="line" id="L1009"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L1010"> },</span> <span class="line" id="L1011"> <span class="tok-number">0xF0</span> => {</span> <span class="line" id="L1012"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L1013"> self.state = .string_utf8_third_to_last_byte_guard_against_overlong;</span> <span class="line" id="L1014"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L1015"> },</span> <span class="line" id="L1016"> <span class="tok-number">0xF1</span>...<span class="tok-number">0xF3</span> => {</span> <span class="line" id="L1017"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L1018"> self.state = .string_utf8_third_to_last_byte;</span> <span class="line" id="L1019"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L1020"> },</span> <span class="line" id="L1021"> <span class="tok-number">0xF4</span> => {</span> <span class="line" id="L1022"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L1023"> self.state = .string_utf8_third_to_last_byte_guard_against_too_large;</span> <span class="line" id="L1024"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L1025"> },</span> <span class="line" id="L1026"> <span class="tok-number">0x80</span>...<span class="tok-number">0xC1</span>, <span class="tok-number">0xF5</span>...<span class="tok-number">0xFF</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError, <span class="tok-comment">// Invalid UTF-8.</span> </span> <span class="line" id="L1027"> }</span> <span class="line" id="L1028"> }</span> <span class="line" id="L1029"> <span class="tok-kw">if</span> (self.is_end_of_input) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnexpectedEndOfInput;</span> <span class="line" id="L1030"> <span class="tok-kw">const</span> slice = self.takeValueSlice();</span> <span class="line" id="L1031"> <span class="tok-kw">if</span> (slice.len > <span class="tok-number">0</span>) <span class="tok-kw">return</span> Token{ .partial_string = slice };</span> <span class="line" id="L1032"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.BufferUnderrun;</span> <span class="line" id="L1033"> },</span> <span class="line" id="L1034"> .string_backslash => {</span> <span class="line" id="L1035"> <span class="tok-kw">switch</span> (<span class="tok-kw">try</span> self.expectByte()) {</span> <span class="line" id="L1036"> <span class="tok-str">'"'</span>, <span class="tok-str">'\\'</span>, <span class="tok-str">'/'</span> => {</span> <span class="line" id="L1037"> <span class="tok-comment">// Since these characters now represent themselves literally,</span> </span> <span class="line" id="L1038"> <span class="tok-comment">// we can simply begin the next plaintext slice here.</span> </span> <span class="line" id="L1039"> self.value_start = self.cursor;</span> <span class="line" id="L1040"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L1041"> self.state = .string;</span> <span class="line" id="L1042"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L1043"> },</span> <span class="line" id="L1044"> <span class="tok-str">'b'</span> => {</span> <span class="line" id="L1045"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L1046"> self.value_start = self.cursor;</span> <span class="line" id="L1047"> self.state = .string;</span> <span class="line" id="L1048"> <span class="tok-kw">return</span> Token{ .partial_string_escaped_1 = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x08</span>} };</span> <span class="line" id="L1049"> },</span> <span class="line" id="L1050"> <span class="tok-str">'f'</span> => {</span> <span class="line" id="L1051"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L1052"> self.value_start = self.cursor;</span> <span class="line" id="L1053"> self.state = .string;</span> <span class="line" id="L1054"> <span class="tok-kw">return</span> Token{ .partial_string_escaped_1 = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x0c</span>} };</span> <span class="line" id="L1055"> },</span> <span class="line" id="L1056"> <span class="tok-str">'n'</span> => {</span> <span class="line" id="L1057"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L1058"> self.value_start = self.cursor;</span> <span class="line" id="L1059"> self.state = .string;</span> <span class="line" id="L1060"> <span class="tok-kw">return</span> Token{ .partial_string_escaped_1 = [_]<span class="tok-type">u8</span>{<span class="tok-str">'\n'</span>} };</span> <span class="line" id="L1061"> },</span> <span class="line" id="L1062"> <span class="tok-str">'r'</span> => {</span> <span class="line" id="L1063"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L1064"> self.value_start = self.cursor;</span> <span class="line" id="L1065"> self.state = .string;</span> <span class="line" id="L1066"> <span class="tok-kw">return</span> Token{ .partial_string_escaped_1 = [_]<span class="tok-type">u8</span>{<span class="tok-str">'\r'</span>} };</span> <span class="line" id="L1067"> },</span> <span class="line" id="L1068"> <span class="tok-str">'t'</span> => {</span> <span class="line" id="L1069"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L1070"> self.value_start = self.cursor;</span> <span class="line" id="L1071"> self.state = .string;</span> <span class="line" id="L1072"> <span class="tok-kw">return</span> Token{ .partial_string_escaped_1 = [_]<span class="tok-type">u8</span>{<span class="tok-str">'\t'</span>} };</span> <span class="line" id="L1073"> },</span> <span class="line" id="L1074"> <span class="tok-str">'u'</span> => {</span> <span class="line" id="L1075"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L1076"> self.state = .string_backslash_u;</span> <span class="line" id="L1077"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L1078"> },</span> <span class="line" id="L1079"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError,</span> <span class="line" id="L1080"> }</span> <span class="line" id="L1081"> },</span> <span class="line" id="L1082"> .string_backslash_u => {</span> <span class="line" id="L1083"> <span class="tok-kw">const</span> c = <span class="tok-kw">try</span> self.expectByte();</span> <span class="line" id="L1084"> <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L1085"> <span class="tok-str">'0'</span>...<span class="tok-str">'9'</span> => {</span> <span class="line" id="L1086"> self.unicode_code_point = <span class="tok-builtin">@as</span>(<span class="tok-type">u21</span>, c - <span class="tok-str">'0'</span>) << <span class="tok-number">12</span>;</span> <span class="line" id="L1087"> },</span> <span class="line" id="L1088"> <span class="tok-str">'A'</span>...<span class="tok-str">'F'</span> => {</span> <span class="line" id="L1089"> self.unicode_code_point = <span class="tok-builtin">@as</span>(<span class="tok-type">u21</span>, c - <span class="tok-str">'A'</span> + <span class="tok-number">10</span>) << <span class="tok-number">12</span>;</span> <span class="line" id="L1090"> },</span> <span class="line" id="L1091"> <span class="tok-str">'a'</span>...<span class="tok-str">'f'</span> => {</span> <span class="line" id="L1092"> self.unicode_code_point = <span class="tok-builtin">@as</span>(<span class="tok-type">u21</span>, c - <span class="tok-str">'a'</span> + <span class="tok-number">10</span>) << <span class="tok-number">12</span>;</span> <span class="line" id="L1093"> },</span> <span class="line" id="L1094"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError,</span> <span class="line" id="L1095"> }</span> <span class="line" id="L1096"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L1097"> self.state = .string_backslash_u_1;</span> <span class="line" id="L1098"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L1099"> },</span> <span class="line" id="L1100"> .string_backslash_u_1 => {</span> <span class="line" id="L1101"> <span class="tok-kw">const</span> c = <span class="tok-kw">try</span> self.expectByte();</span> <span class="line" id="L1102"> <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L1103"> <span class="tok-str">'0'</span>...<span class="tok-str">'9'</span> => {</span> <span class="line" id="L1104"> self.unicode_code_point \|= <span class="tok-builtin">@as</span>(<span class="tok-type">u21</span>, c - <span class="tok-str">'0'</span>) << <span class="tok-number">8</span>;</span> <span class="line" id="L1105"> },</span> <span class="line" id="L1106"> <span class="tok-str">'A'</span>...<span class="tok-str">'F'</span> => {</span> <span class="line" id="L1107"> self.unicode_code_point \|= <span class="tok-builtin">@as</span>(<span class="tok-type">u21</span>, c - <span class="tok-str">'A'</span> + <span class="tok-number">10</span>) << <span class="tok-number">8</span>;</span> <span class="line" id="L1108"> },</span> <span class="line" id="L1109"> <span class="tok-str">'a'</span>...<span class="tok-str">'f'</span> => {</span> <span class="line" id="L1110"> self.unicode_code_point \|= <span class="tok-builtin">@as</span>(<span class="tok-type">u21</span>, c - <span class="tok-str">'a'</span> + <span class="tok-number">10</span>) << <span class="tok-number">8</span>;</span> <span class="line" id="L1111"> },</span> <span class="line" id="L1112"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError,</span> <span class="line" id="L1113"> }</span> <span class="line" id="L1114"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L1115"> self.state = .string_backslash_u_2;</span> <span class="line" id="L1116"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L1117"> },</span> <span class="line" id="L1118"> .string_backslash_u_2 => {</span> <span class="line" id="L1119"> <span class="tok-kw">const</span> c = <span class="tok-kw">try</span> self.expectByte();</span> <span class="line" id="L1120"> <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L1121"> <span class="tok-str">'0'</span>...<span class="tok-str">'9'</span> => {</span> <span class="line" id="L1122"> self.unicode_code_point \|= <span class="tok-builtin">@as</span>(<span class="tok-type">u21</span>, c - <span class="tok-str">'0'</span>) << <span class="tok-number">4</span>;</span> <span class="line" id="L1123"> },</span> <span class="line" id="L1124"> <span class="tok-str">'A'</span>...<span class="tok-str">'F'</span> => {</span> <span class="line" id="L1125"> self.unicode_code_point \|= <span class="tok-builtin">@as</span>(<span class="tok-type">u21</span>, c - <span class="tok-str">'A'</span> + <span class="tok-number">10</span>) << <span class="tok-number">4</span>;</span> <span class="line" id="L1126"> },</span> <span class="line" id="L1127"> <span class="tok-str">'a'</span>...<span class="tok-str">'f'</span> => {</span> <span class="line" id="L1128"> self.unicode_code_point \|= <span class="tok-builtin">@as</span>(<span class="tok-type">u21</span>, c - <span class="tok-str">'a'</span> + <span class="tok-number">10</span>) << <span class="tok-number">4</span>;</span> <span class="line" id="L1129"> },</span> <span class="line" id="L1130"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError,</span> <span class="line" id="L1131"> }</span> <span class="line" id="L1132"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L1133"> self.state = .string_backslash_u_3;</span> <span class="line" id="L1134"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L1135"> },</span> <span class="line" id="L1136"> .string_backslash_u_3 => {</span> <span class="line" id="L1137"> <span class="tok-kw">const</span> c = <span class="tok-kw">try</span> self.expectByte();</span> <span class="line" id="L1138"> <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L1139"> <span class="tok-str">'0'</span>...<span class="tok-str">'9'</span> => {</span> <span class="line" id="L1140"> self.unicode_code_point \|= c - <span class="tok-str">'0'</span>;</span> <span class="line" id="L1141"> },</span> <span class="line" id="L1142"> <span class="tok-str">'A'</span>...<span class="tok-str">'F'</span> => {</span> <span class="line" id="L1143"> self.unicode_code_point \|= c - <span class="tok-str">'A'</span> + <span class="tok-number">10</span>;</span> <span class="line" id="L1144"> },</span> <span class="line" id="L1145"> <span class="tok-str">'a'</span>...<span class="tok-str">'f'</span> => {</span> <span class="line" id="L1146"> self.unicode_code_point \|= c - <span class="tok-str">'a'</span> + <span class="tok-number">10</span>;</span> <span class="line" id="L1147"> },</span> <span class="line" id="L1148"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError,</span> <span class="line" id="L1149"> }</span> <span class="line" id="L1150"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L1151"> <span class="tok-kw">switch</span> (self.unicode_code_point) {</span> <span class="line" id="L1152"> <span class="tok-number">0xD800</span>...<span class="tok-number">0xDBFF</span> => {</span> <span class="line" id="L1153"> <span class="tok-comment">// High surrogate half.</span> </span> <span class="line" id="L1154"> self.unicode_code_point = <span class="tok-number">0x10000</span> \| (self.unicode_code_point << <span class="tok-number">10</span>);</span> <span class="line" id="L1155"> self.state = .string_surrogate_half;</span> <span class="line" id="L1156"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L1157"> },</span> <span class="line" id="L1158"> <span class="tok-number">0xDC00</span>...<span class="tok-number">0xDFFF</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError, <span class="tok-comment">// Unexpected low surrogate half.</span> </span> <span class="line" id="L1159"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L1160"> <span class="tok-comment">// Code point from a single UTF-16 code unit.</span> </span> <span class="line" id="L1161"> self.value_start = self.cursor;</span> <span class="line" id="L1162"> self.state = .string;</span> <span class="line" id="L1163"> <span class="tok-kw">return</span> self.partialStringCodepoint();</span> <span class="line" id="L1164"> },</span> <span class="line" id="L1165"> }</span> <span class="line" id="L1166"> },</span> <span class="line" id="L1167"> .string_surrogate_half => {</span> <span class="line" id="L1168"> <span class="tok-kw">switch</span> (<span class="tok-kw">try</span> self.expectByte()) {</span> <span class="line" id="L1169"> <span class="tok-str">'\\'</span> => {</span> <span class="line" id="L1170"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L1171"> self.state = .string_surrogate_half_backslash;</span> <span class="line" id="L1172"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L1173"> },</span> <span class="line" id="L1174"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError, <span class="tok-comment">// Expected low surrogate half.</span> </span> <span class="line" id="L1175"> }</span> <span class="line" id="L1176"> },</span> <span class="line" id="L1177"> .string_surrogate_half_backslash => {</span> <span class="line" id="L1178"> <span class="tok-kw">switch</span> (<span class="tok-kw">try</span> self.expectByte()) {</span> <span class="line" id="L1179"> <span class="tok-str">'u'</span> => {</span> <span class="line" id="L1180"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L1181"> self.state = .string_surrogate_half_backslash_u;</span> <span class="line" id="L1182"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L1183"> },</span> <span class="line" id="L1184"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError, <span class="tok-comment">// Expected low surrogate half.</span> </span> <span class="line" id="L1185"> }</span> <span class="line" id="L1186"> },</span> <span class="line" id="L1187"> .string_surrogate_half_backslash_u => {</span> <span class="line" id="L1188"> <span class="tok-kw">switch</span> (<span class="tok-kw">try</span> self.expectByte()) {</span> <span class="line" id="L1189"> <span class="tok-str">'D'</span>, <span class="tok-str">'d'</span> => {</span> <span class="line" id="L1190"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L1191"> self.state = .string_surrogate_half_backslash_u_1;</span> <span class="line" id="L1192"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L1193"> },</span> <span class="line" id="L1194"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError, <span class="tok-comment">// Expected low surrogate half.</span> </span> <span class="line" id="L1195"> }</span> <span class="line" id="L1196"> },</span> <span class="line" id="L1197"> .string_surrogate_half_backslash_u_1 => {</span> <span class="line" id="L1198"> <span class="tok-kw">const</span> c = <span class="tok-kw">try</span> self.expectByte();</span> <span class="line" id="L1199"> <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L1200"> <span class="tok-str">'C'</span>...<span class="tok-str">'F'</span> => {</span> <span class="line" id="L1201"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L1202"> self.unicode_code_point \|= <span class="tok-builtin">@as</span>(<span class="tok-type">u21</span>, c - <span class="tok-str">'C'</span>) << <span class="tok-number">8</span>;</span> <span class="line" id="L1203"> self.state = .string_surrogate_half_backslash_u_2;</span> <span class="line" id="L1204"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L1205"> },</span> <span class="line" id="L1206"> <span class="tok-str">'c'</span>...<span class="tok-str">'f'</span> => {</span> <span class="line" id="L1207"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L1208"> self.unicode_code_point \|= <span class="tok-builtin">@as</span>(<span class="tok-type">u21</span>, c - <span class="tok-str">'c'</span>) << <span class="tok-number">8</span>;</span> <span class="line" id="L1209"> self.state = .string_surrogate_half_backslash_u_2;</span> <span class="line" id="L1210"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L1211"> },</span> <span class="line" id="L1212"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError, <span class="tok-comment">// Expected low surrogate half.</span> </span> <span class="line" id="L1213"> }</span> <span class="line" id="L1214"> },</span> <span class="line" id="L1215"> .string_surrogate_half_backslash_u_2 => {</span> <span class="line" id="L1216"> <span class="tok-kw">const</span> c = <span class="tok-kw">try</span> self.expectByte();</span> <span class="line" id="L1217"> <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L1218"> <span class="tok-str">'0'</span>...<span class="tok-str">'9'</span> => {</span> <span class="line" id="L1219"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L1220"> self.unicode_code_point \|= <span class="tok-builtin">@as</span>(<span class="tok-type">u21</span>, c - <span class="tok-str">'0'</span>) << <span class="tok-number">4</span>;</span> <span class="line" id="L1221"> self.state = .string_surrogate_half_backslash_u_3;</span> <span class="line" id="L1222"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L1223"> },</span> <span class="line" id="L1224"> <span class="tok-str">'A'</span>...<span class="tok-str">'F'</span> => {</span> <span class="line" id="L1225"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L1226"> self.unicode_code_point \|= <span class="tok-builtin">@as</span>(<span class="tok-type">u21</span>, c - <span class="tok-str">'A'</span> + <span class="tok-number">10</span>) << <span class="tok-number">4</span>;</span> <span class="line" id="L1227"> self.state = .string_surrogate_half_backslash_u_3;</span> <span class="line" id="L1228"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L1229"> },</span> <span class="line" id="L1230"> <span class="tok-str">'a'</span>...<span class="tok-str">'f'</span> => {</span> <span class="line" id="L1231"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L1232"> self.unicode_code_point \|= <span class="tok-builtin">@as</span>(<span class="tok-type">u21</span>, c - <span class="tok-str">'a'</span> + <span class="tok-number">10</span>) << <span class="tok-number">4</span>;</span> <span class="line" id="L1233"> self.state = .string_surrogate_half_backslash_u_3;</span> <span class="line" id="L1234"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L1235"> },</span> <span class="line" id="L1236"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError,</span> <span class="line" id="L1237"> }</span> <span class="line" id="L1238"> },</span> <span class="line" id="L1239"> .string_surrogate_half_backslash_u_3 => {</span> <span class="line" id="L1240"> <span class="tok-kw">const</span> c = <span class="tok-kw">try</span> self.expectByte();</span> <span class="line" id="L1241"> <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L1242"> <span class="tok-str">'0'</span>...<span class="tok-str">'9'</span> => {</span> <span class="line" id="L1243"> self.unicode_code_point \|= c - <span class="tok-str">'0'</span>;</span> <span class="line" id="L1244"> },</span> <span class="line" id="L1245"> <span class="tok-str">'A'</span>...<span class="tok-str">'F'</span> => {</span> <span class="line" id="L1246"> self.unicode_code_point \|= c - <span class="tok-str">'A'</span> + <span class="tok-number">10</span>;</span> <span class="line" id="L1247"> },</span> <span class="line" id="L1248"> <span class="tok-str">'a'</span>...<span class="tok-str">'f'</span> => {</span> <span class="line" id="L1249"> self.unicode_code_point \|= c - <span class="tok-str">'a'</span> + <span class="tok-number">10</span>;</span> <span class="line" id="L1250"> },</span> <span class="line" id="L1251"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError,</span> <span class="line" id="L1252"> }</span> <span class="line" id="L1253"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L1254"> self.value_start = self.cursor;</span> <span class="line" id="L1255"> self.state = .string;</span> <span class="line" id="L1256"> <span class="tok-kw">return</span> self.partialStringCodepoint();</span> <span class="line" id="L1257"> },</span> <span class="line" id="L1258"></span> <span class="line" id="L1259"> .string_utf8_last_byte => {</span> <span class="line" id="L1260"> <span class="tok-kw">switch</span> (<span class="tok-kw">try</span> self.expectByte()) {</span> <span class="line" id="L1261"> <span class="tok-number">0x80</span>...<span class="tok-number">0xBF</span> => {</span> <span class="line" id="L1262"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L1263"> self.state = .string;</span> <span class="line" id="L1264"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L1265"> },</span> <span class="line" id="L1266"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError, <span class="tok-comment">// Invalid UTF-8.</span> </span> <span class="line" id="L1267"> }</span> <span class="line" id="L1268"> },</span> <span class="line" id="L1269"> .string_utf8_second_to_last_byte => {</span> <span class="line" id="L1270"> <span class="tok-kw">switch</span> (<span class="tok-kw">try</span> self.expectByte()) {</span> <span class="line" id="L1271"> <span class="tok-number">0x80</span>...<span class="tok-number">0xBF</span> => {</span> <span class="line" id="L1272"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L1273"> self.state = .string_utf8_last_byte;</span> <span class="line" id="L1274"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L1275"> },</span> <span class="line" id="L1276"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError, <span class="tok-comment">// Invalid UTF-8.</span> </span> <span class="line" id="L1277"> }</span> <span class="line" id="L1278"> },</span> <span class="line" id="L1279"> .string_utf8_second_to_last_byte_guard_against_overlong => {</span> <span class="line" id="L1280"> <span class="tok-kw">switch</span> (<span class="tok-kw">try</span> self.expectByte()) {</span> <span class="line" id="L1281"> <span class="tok-number">0xA0</span>...<span class="tok-number">0xBF</span> => {</span> <span class="line" id="L1282"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L1283"> self.state = .string_utf8_last_byte;</span> <span class="line" id="L1284"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L1285"> },</span> <span class="line" id="L1286"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError, <span class="tok-comment">// Invalid UTF-8.</span> </span> <span class="line" id="L1287"> }</span> <span class="line" id="L1288"> },</span> <span class="line" id="L1289"> .string_utf8_second_to_last_byte_guard_against_surrogate_half => {</span> <span class="line" id="L1290"> <span class="tok-kw">switch</span> (<span class="tok-kw">try</span> self.expectByte()) {</span> <span class="line" id="L1291"> <span class="tok-number">0x80</span>...<span class="tok-number">0x9F</span> => {</span> <span class="line" id="L1292"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L1293"> self.state = .string_utf8_last_byte;</span> <span class="line" id="L1294"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L1295"> },</span> <span class="line" id="L1296"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError, <span class="tok-comment">// Invalid UTF-8.</span> </span> <span class="line" id="L1297"> }</span> <span class="line" id="L1298"> },</span> <span class="line" id="L1299"> .string_utf8_third_to_last_byte => {</span> <span class="line" id="L1300"> <span class="tok-kw">switch</span> (<span class="tok-kw">try</span> self.expectByte()) {</span> <span class="line" id="L1301"> <span class="tok-number">0x80</span>...<span class="tok-number">0xBF</span> => {</span> <span class="line" id="L1302"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L1303"> self.state = .string_utf8_second_to_last_byte;</span> <span class="line" id="L1304"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L1305"> },</span> <span class="line" id="L1306"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError, <span class="tok-comment">// Invalid UTF-8.</span> </span> <span class="line" id="L1307"> }</span> <span class="line" id="L1308"> },</span> <span class="line" id="L1309"> .string_utf8_third_to_last_byte_guard_against_overlong => {</span> <span class="line" id="L1310"> <span class="tok-kw">switch</span> (<span class="tok-kw">try</span> self.expectByte()) {</span> <span class="line" id="L1311"> <span class="tok-number">0x90</span>...<span class="tok-number">0xBF</span> => {</span> <span class="line" id="L1312"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L1313"> self.state = .string_utf8_second_to_last_byte;</span> <span class="line" id="L1314"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L1315"> },</span> <span class="line" id="L1316"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError, <span class="tok-comment">// Invalid UTF-8.</span> </span> <span class="line" id="L1317"> }</span> <span class="line" id="L1318"> },</span> <span class="line" id="L1319"> .string_utf8_third_to_last_byte_guard_against_too_large => {</span> <span class="line" id="L1320"> <span class="tok-kw">switch</span> (<span class="tok-kw">try</span> self.expectByte()) {</span> <span class="line" id="L1321"> <span class="tok-number">0x80</span>...<span class="tok-number">0x8F</span> => {</span> <span class="line" id="L1322"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L1323"> self.state = .string_utf8_second_to_last_byte;</span> <span class="line" id="L1324"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L1325"> },</span> <span class="line" id="L1326"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError, <span class="tok-comment">// Invalid UTF-8.</span> </span> <span class="line" id="L1327"> }</span> <span class="line" id="L1328"> },</span> <span class="line" id="L1329"></span> <span class="line" id="L1330"> .literal_t => {</span> <span class="line" id="L1331"> <span class="tok-kw">switch</span> (<span class="tok-kw">try</span> self.expectByte()) {</span> <span class="line" id="L1332"> <span class="tok-str">'r'</span> => {</span> <span class="line" id="L1333"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L1334"> self.state = .literal_tr;</span> <span class="line" id="L1335"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L1336"> },</span> <span class="line" id="L1337"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError,</span> <span class="line" id="L1338"> }</span> <span class="line" id="L1339"> },</span> <span class="line" id="L1340"> .literal_tr => {</span> <span class="line" id="L1341"> <span class="tok-kw">switch</span> (<span class="tok-kw">try</span> self.expectByte()) {</span> <span class="line" id="L1342"> <span class="tok-str">'u'</span> => {</span> <span class="line" id="L1343"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L1344"> self.state = .literal_tru;</span> <span class="line" id="L1345"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L1346"> },</span> <span class="line" id="L1347"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError,</span> <span class="line" id="L1348"> }</span> <span class="line" id="L1349"> },</span> <span class="line" id="L1350"> .literal_tru => {</span> <span class="line" id="L1351"> <span class="tok-kw">switch</span> (<span class="tok-kw">try</span> self.expectByte()) {</span> <span class="line" id="L1352"> <span class="tok-str">'e'</span> => {</span> <span class="line" id="L1353"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L1354"> self.state = .post_value;</span> <span class="line" id="L1355"> <span class="tok-kw">return</span> .<span class="tok-null">true</span>;</span> <span class="line" id="L1356"> },</span> <span class="line" id="L1357"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError,</span> <span class="line" id="L1358"> }</span> <span class="line" id="L1359"> },</span> <span class="line" id="L1360"> .literal_f => {</span> <span class="line" id="L1361"> <span class="tok-kw">switch</span> (<span class="tok-kw">try</span> self.expectByte()) {</span> <span class="line" id="L1362"> <span class="tok-str">'a'</span> => {</span> <span class="line" id="L1363"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L1364"> self.state = .literal_fa;</span> <span class="line" id="L1365"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L1366"> },</span> <span class="line" id="L1367"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError,</span> <span class="line" id="L1368"> }</span> <span class="line" id="L1369"> },</span> <span class="line" id="L1370"> .literal_fa => {</span> <span class="line" id="L1371"> <span class="tok-kw">switch</span> (<span class="tok-kw">try</span> self.expectByte()) {</span> <span class="line" id="L1372"> <span class="tok-str">'l'</span> => {</span> <span class="line" id="L1373"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L1374"> self.state = .literal_fal;</span> <span class="line" id="L1375"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L1376"> },</span> <span class="line" id="L1377"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError,</span> <span class="line" id="L1378"> }</span> <span class="line" id="L1379"> },</span> <span class="line" id="L1380"> .literal_fal => {</span> <span class="line" id="L1381"> <span class="tok-kw">switch</span> (<span class="tok-kw">try</span> self.expectByte()) {</span> <span class="line" id="L1382"> <span class="tok-str">'s'</span> => {</span> <span class="line" id="L1383"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L1384"> self.state = .literal_fals;</span> <span class="line" id="L1385"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L1386"> },</span> <span class="line" id="L1387"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError,</span> <span class="line" id="L1388"> }</span> <span class="line" id="L1389"> },</span> <span class="line" id="L1390"> .literal_fals => {</span> <span class="line" id="L1391"> <span class="tok-kw">switch</span> (<span class="tok-kw">try</span> self.expectByte()) {</span> <span class="line" id="L1392"> <span class="tok-str">'e'</span> => {</span> <span class="line" id="L1393"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L1394"> self.state = .post_value;</span> <span class="line" id="L1395"> <span class="tok-kw">return</span> .<span class="tok-null">false</span>;</span> <span class="line" id="L1396"> },</span> <span class="line" id="L1397"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError,</span> <span class="line" id="L1398"> }</span> <span class="line" id="L1399"> },</span> <span class="line" id="L1400"> .literal_n => {</span> <span class="line" id="L1401"> <span class="tok-kw">switch</span> (<span class="tok-kw">try</span> self.expectByte()) {</span> <span class="line" id="L1402"> <span class="tok-str">'u'</span> => {</span> <span class="line" id="L1403"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L1404"> self.state = .literal_nu;</span> <span class="line" id="L1405"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L1406"> },</span> <span class="line" id="L1407"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError,</span> <span class="line" id="L1408"> }</span> <span class="line" id="L1409"> },</span> <span class="line" id="L1410"> .literal_nu => {</span> <span class="line" id="L1411"> <span class="tok-kw">switch</span> (<span class="tok-kw">try</span> self.expectByte()) {</span> <span class="line" id="L1412"> <span class="tok-str">'l'</span> => {</span> <span class="line" id="L1413"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L1414"> self.state = .literal_nul;</span> <span class="line" id="L1415"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L1416"> },</span> <span class="line" id="L1417"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError,</span> <span class="line" id="L1418"> }</span> <span class="line" id="L1419"> },</span> <span class="line" id="L1420"> .literal_nul => {</span> <span class="line" id="L1421"> <span class="tok-kw">switch</span> (<span class="tok-kw">try</span> self.expectByte()) {</span> <span class="line" id="L1422"> <span class="tok-str">'l'</span> => {</span> <span class="line" id="L1423"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L1424"> self.state = .post_value;</span> <span class="line" id="L1425"> <span class="tok-kw">return</span> .<span class="tok-null">null</span>;</span> <span class="line" id="L1426"> },</span> <span class="line" id="L1427"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError,</span> <span class="line" id="L1428"> }</span> <span class="line" id="L1429"> },</span> <span class="line" id="L1430"> }</span> <span class="line" id="L1431"> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L1432"> }</span> <span class="line" id="L1433"> }</span> <span class="line" id="L1434"></span> <span class="line" id="L1435"> <span class="tok-comment">/// Seeks ahead in the input until the first byte of the next token (or the end of the input)</span></span> <span class="line" id="L1436"> <span class="tok-comment">/// determines which type of token will be returned from the next `next()` call.</span></span> <span class="line" id="L1437"> <span class="tok-comment">/// This function is idempotent, only advancing past commas, colons, and inter-token whitespace.</span></span> <span class="line" id="L1438"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">peekNextTokenType</span>(self: <span class="tok-builtin">@This</span>()) PeekError!TokenType {</span> <span class="line" id="L1439"> state_loop: <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L1440"> <span class="tok-kw">switch</span> (self.state) {</span> <span class="line" id="L1441"> .value => {</span> <span class="line" id="L1442"> <span class="tok-kw">switch</span> (<span class="tok-kw">try</span> self.skipWhitespaceExpectByte()) {</span> <span class="line" id="L1443"> <span class="tok-str">'{'</span> => <span class="tok-kw">return</span> .object_begin,</span> <span class="line" id="L1444"> <span class="tok-str">'['</span> => <span class="tok-kw">return</span> .array_begin,</span> <span class="line" id="L1445"> <span class="tok-str">'"'</span> => <span class="tok-kw">return</span> .string,</span> <span class="line" id="L1446"> <span class="tok-str">'-'</span>, <span class="tok-str">'0'</span>...<span class="tok-str">'9'</span> => <span class="tok-kw">return</span> .number,</span> <span class="line" id="L1447"> <span class="tok-str">'t'</span> => <span class="tok-kw">return</span> .<span class="tok-null">true</span>,</span> <span class="line" id="L1448"> <span class="tok-str">'f'</span> => <span class="tok-kw">return</span> .<span class="tok-null">false</span>,</span> <span class="line" id="L1449"> <span class="tok-str">'n'</span> => <span class="tok-kw">return</span> .<span class="tok-null">null</span>,</span> <span class="line" id="L1450"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError,</span> <span class="line" id="L1451"> }</span> <span class="line" id="L1452"> },</span> <span class="line" id="L1453"></span> <span class="line" id="L1454"> .post_value => {</span> <span class="line" id="L1455"> <span class="tok-kw">if</span> (<span class="tok-kw">try</span> self.skipWhitespaceCheckEnd()) <span class="tok-kw">return</span> .end_of_document;</span> <span class="line" id="L1456"></span> <span class="line" id="L1457"> <span class="tok-kw">const</span> c = self.input[self.cursor];</span> <span class="line" id="L1458"> <span class="tok-kw">if</span> (self.string_is_object_key) {</span> <span class="line" id="L1459"> self.string_is_object_key = <span class="tok-null">false</span>;</span> <span class="line" id="L1460"> <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L1461"> <span class="tok-str">':'</span> => {</span> <span class="line" id="L1462"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L1463"> self.state = .value;</span> <span class="line" id="L1464"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L1465"> },</span> <span class="line" id="L1466"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError,</span> <span class="line" id="L1467"> }</span> <span class="line" id="L1468"> }</span> <span class="line" id="L1469"></span> <span class="line" id="L1470"> <span class="tok-kw">switch</span> (c) {</span> <span class="line" id="L1471"> <span class="tok-str">'}'</span> => <span class="tok-kw">return</span> .object_end,</span> <span class="line" id="L1472"> <span class="tok-str">']'</span> => <span class="tok-kw">return</span> .array_end,</span> <span class="line" id="L1473"> <span class="tok-str">','</span> => {</span> <span class="line" id="L1474"> <span class="tok-kw">switch</span> (self.stack.peek()) {</span> <span class="line" id="L1475"> OBJECT_MODE => {</span> <span class="line" id="L1476"> self.state = .object_post_comma;</span> <span class="line" id="L1477"> },</span> <span class="line" id="L1478"> ARRAY_MODE => {</span> <span class="line" id="L1479"> self.state = .value;</span> <span class="line" id="L1480"> },</span> <span class="line" id="L1481"> }</span> <span class="line" id="L1482"> self.cursor += <span class="tok-number">1</span>;</span> <span class="line" id="L1483"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L1484"> },</span> <span class="line" id="L1485"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError,</span> <span class="line" id="L1486"> }</span> <span class="line" id="L1487"> },</span> <span class="line" id="L1488"></span> <span class="line" id="L1489"> .object_start => {</span> <span class="line" id="L1490"> <span class="tok-kw">switch</span> (<span class="tok-kw">try</span> self.skipWhitespaceExpectByte()) {</span> <span class="line" id="L1491"> <span class="tok-str">'"'</span> => <span class="tok-kw">return</span> .string,</span> <span class="line" id="L1492"> <span class="tok-str">'}'</span> => <span class="tok-kw">return</span> .object_end,</span> <span class="line" id="L1493"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError,</span> <span class="line" id="L1494"> }</span> <span class="line" id="L1495"> },</span> <span class="line" id="L1496"> .object_post_comma => {</span> <span class="line" id="L1497"> <span class="tok-kw">switch</span> (<span class="tok-kw">try</span> self.skipWhitespaceExpectByte()) {</span> <span class="line" id="L1498"> <span class="tok-str">'"'</span> => <span class="tok-kw">return</span> .string,</span> <span class="line" id="L1499"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError,</span> <span class="line" id="L1500"> }</span> <span class="line" id="L1501"> },</span> <span class="line" id="L1502"></span> <span class="line" id="L1503"> .array_start => {</span> <span class="line" id="L1504"> <span class="tok-kw">switch</span> (<span class="tok-kw">try</span> self.skipWhitespaceExpectByte()) {</span> <span class="line" id="L1505"> <span class="tok-str">']'</span> => <span class="tok-kw">return</span> .array_end,</span> <span class="line" id="L1506"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L1507"> self.state = .value;</span> <span class="line" id="L1508"> <span class="tok-kw">continue</span> :state_loop;</span> <span class="line" id="L1509"> },</span> <span class="line" id="L1510"> }</span> <span class="line" id="L1511"> },</span> <span class="line" id="L1512"></span> <span class="line" id="L1513"> .number_minus,</span> <span class="line" id="L1514"> .number_leading_zero,</span> <span class="line" id="L1515"> .number_int,</span> <span class="line" id="L1516"> .number_post_dot,</span> <span class="line" id="L1517"> .number_frac,</span> <span class="line" id="L1518"> .number_post_e,</span> <span class="line" id="L1519"> .number_post_e_sign,</span> <span class="line" id="L1520"> .number_exp,</span> <span class="line" id="L1521"> => <span class="tok-kw">return</span> .number,</span> <span class="line" id="L1522"></span> <span class="line" id="L1523"> .string,</span> <span class="line" id="L1524"> .string_backslash,</span> <span class="line" id="L1525"> .string_backslash_u,</span> <span class="line" id="L1526"> .string_backslash_u_1,</span> <span class="line" id="L1527"> .string_backslash_u_2,</span> <span class="line" id="L1528"> .string_backslash_u_3,</span> <span class="line" id="L1529"> .string_surrogate_half,</span> <span class="line" id="L1530"> .string_surrogate_half_backslash,</span> <span class="line" id="L1531"> .string_surrogate_half_backslash_u,</span> <span class="line" id="L1532"> .string_surrogate_half_backslash_u_1,</span> <span class="line" id="L1533"> .string_surrogate_half_backslash_u_2,</span> <span class="line" id="L1534"> .string_surrogate_half_backslash_u_3,</span> <span class="line" id="L1535"> => <span class="tok-kw">return</span> .string,</span> <span class="line" id="L1536"></span> <span class="line" id="L1537"> .string_utf8_last_byte,</span> <span class="line" id="L1538"> .string_utf8_second_to_last_byte,</span> <span class="line" id="L1539"> .string_utf8_second_to_last_byte_guard_against_overlong,</span> <span class="line" id="L1540"> .string_utf8_second_to_last_byte_guard_against_surrogate_half,</span> <span class="line" id="L1541"> .string_utf8_third_to_last_byte,</span> <span class="line" id="L1542"> .string_utf8_third_to_last_byte_guard_against_overlong,</span> <span class="line" id="L1543"> .string_utf8_third_to_last_byte_guard_against_too_large,</span> <span class="line" id="L1544"> => <span class="tok-kw">return</span> .string,</span> <span class="line" id="L1545"></span> <span class="line" id="L1546"> .literal_t,</span> <span class="line" id="L1547"> .literal_tr,</span> <span class="line" id="L1548"> .literal_tru,</span> <span class="line" id="L1549"> => <span class="tok-kw">return</span> .<span class="tok-null">true</span>,</span> <span class="line" id="L1550"> .literal_f,</span> <span class="line" id="L1551"> .literal_fa,</span> <span class="line" id="L1552"> .literal_fal,</span> <span class="line" id="L1553"> .literal_fals,</span> <span class="line" id="L1554"> => <span class="tok-kw">return</span> .<span class="tok-null">false</span>,</span> <span class="line" id="L1555"> .literal_n,</span> <span class="line" id="L1556"> .literal_nu,</span> <span class="line" id="L1557"> .literal_nul,</span> <span class="line" id="L1558"> => <span class="tok-kw">return</span> .<span class="tok-null">null</span>,</span> <span class="line" id="L1559"> }</span> <span class="line" id="L1560"> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L1561"> }</span> <span class="line" id="L1562"> }</span> <span class="line" id="L1563"></span> <span class="line" id="L1564"> <span class="tok-kw">const</span> State = <span class="tok-kw">enum</span> {</span> <span class="line" id="L1565"> value,</span> <span class="line" id="L1566"> post_value,</span> <span class="line" id="L1567"></span> <span class="line" id="L1568"> object_start,</span> <span class="line" id="L1569"> object_post_comma,</span> <span class="line" id="L1570"></span> <span class="line" id="L1571"> array_start,</span> <span class="line" id="L1572"></span> <span class="line" id="L1573"> number_minus,</span> <span class="line" id="L1574"> number_leading_zero,</span> <span class="line" id="L1575"> number_int,</span> <span class="line" id="L1576"> number_post_dot,</span> <span class="line" id="L1577"> number_frac,</span> <span class="line" id="L1578"> number_post_e,</span> <span class="line" id="L1579"> number_post_e_sign,</span> <span class="line" id="L1580"> number_exp,</span> <span class="line" id="L1581"></span> <span class="line" id="L1582"> string,</span> <span class="line" id="L1583"> string_backslash,</span> <span class="line" id="L1584"> string_backslash_u,</span> <span class="line" id="L1585"> string_backslash_u_1,</span> <span class="line" id="L1586"> string_backslash_u_2,</span> <span class="line" id="L1587"> string_backslash_u_3,</span> <span class="line" id="L1588"> string_surrogate_half,</span> <span class="line" id="L1589"> string_surrogate_half_backslash,</span> <span class="line" id="L1590"> string_surrogate_half_backslash_u,</span> <span class="line" id="L1591"> string_surrogate_half_backslash_u_1,</span> <span class="line" id="L1592"> string_surrogate_half_backslash_u_2,</span> <span class="line" id="L1593"> string_surrogate_half_backslash_u_3,</span> <span class="line" id="L1594"></span> <span class="line" id="L1595"> <span class="tok-comment">// From http://unicode.org/mail-arch/unicode-ml/y2003-m02/att-0467/01-The_Algorithm_to_Valide_an_UTF-8_String</span> </span> <span class="line" id="L1596"> string_utf8_last_byte, <span class="tok-comment">// State A</span> </span> <span class="line" id="L1597"> string_utf8_second_to_last_byte, <span class="tok-comment">// State B</span> </span> <span class="line" id="L1598"> string_utf8_second_to_last_byte_guard_against_overlong, <span class="tok-comment">// State C</span> </span> <span class="line" id="L1599"> string_utf8_second_to_last_byte_guard_against_surrogate_half, <span class="tok-comment">// State D</span> </span> <span class="line" id="L1600"> string_utf8_third_to_last_byte, <span class="tok-comment">// State E</span> </span> <span class="line" id="L1601"> string_utf8_third_to_last_byte_guard_against_overlong, <span class="tok-comment">// State F</span> </span> <span class="line" id="L1602"> string_utf8_third_to_last_byte_guard_against_too_large, <span class="tok-comment">// State G</span> </span> <span class="line" id="L1603"></span> <span class="line" id="L1604"> literal_t,</span> <span class="line" id="L1605"> literal_tr,</span> <span class="line" id="L1606"> literal_tru,</span> <span class="line" id="L1607"> literal_f,</span> <span class="line" id="L1608"> literal_fa,</span> <span class="line" id="L1609"> literal_fal,</span> <span class="line" id="L1610"> literal_fals,</span> <span class="line" id="L1611"> literal_n,</span> <span class="line" id="L1612"> literal_nu,</span> <span class="line" id="L1613"> literal_nul,</span> <span class="line" id="L1614"> };</span> <span class="line" id="L1615"></span> <span class="line" id="L1616"> <span class="tok-kw">fn</span> <span class="tok-fn">expectByte</span>(self: <span class="tok-kw">const</span> <span class="tok-builtin">@This</span>()) !<span class="tok-type">u8</span> {</span> <span class="line" id="L1617"> <span class="tok-kw">if</span> (self.cursor < self.input.len) {</span> <span class="line" id="L1618"> <span class="tok-kw">return</span> self.input[self.cursor];</span> <span class="line" id="L1619"> }</span> <span class="line" id="L1620"> <span class="tok-comment">// No byte.</span> </span> <span class="line" id="L1621"> <span class="tok-kw">if</span> (self.is_end_of_input) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnexpectedEndOfInput;</span> <span class="line" id="L1622"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.BufferUnderrun;</span> <span class="line" id="L1623"> }</span> <span class="line" id="L1624"></span> <span class="line" id="L1625"> <span class="tok-kw">fn</span> <span class="tok-fn">skipWhitespace</span>(self: <span class="tok-builtin">@This</span>()) <span class="tok-type">void</span> {</span> <span class="line" id="L1626"> <span class="tok-kw">while</span> (self.cursor < self.input.len) : (self.cursor += <span class="tok-number">1</span>) {</span> <span class="line" id="L1627"> <span class="tok-kw">switch</span> (self.input[self.cursor]) {</span> <span class="line" id="L1628"> <span class="tok-comment">// Whitespace</span> </span> <span class="line" id="L1629"> <span class="tok-str">' '</span>, <span class="tok-str">'\t'</span>, <span class="tok-str">'\r'</span> => <span class="tok-kw">continue</span>,</span> <span class="line" id="L1630"> <span class="tok-str">'\n'</span> => {</span> <span class="line" id="L1631"> <span class="tok-kw">if</span> (self.diagnostics) \|diag\| {</span> <span class="line" id="L1632"> diag.line_number += <span class="tok-number">1</span>;</span> <span class="line" id="L1633"> <span class="tok-comment">// This will count the newline itself,</span> </span> <span class="line" id="L1634"> <span class="tok-comment">// which means a straight-forward subtraction will give a 1-based column number.</span> </span> <span class="line" id="L1635"> diag.line_start_cursor = self.cursor;</span> <span class="line" id="L1636"> }</span> <span class="line" id="L1637"> <span class="tok-kw">continue</span>;</span> <span class="line" id="L1638"> },</span> <span class="line" id="L1639"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span>,</span> <span class="line" id="L1640"> }</span> <span class="line" id="L1641"> }</span> <span class="line" id="L1642"> }</span> <span class="line" id="L1643"></span> <span class="line" id="L1644"> <span class="tok-kw">fn</span> <span class="tok-fn">skipWhitespaceExpectByte</span>(self: <span class="tok-builtin">@This</span>()) !<span class="tok-type">u8</span> {</span> <span class="line" id="L1645"> self.skipWhitespace();</span> <span class="line" id="L1646"> <span class="tok-kw">return</span> self.expectByte();</span> <span class="line" id="L1647"> }</span> <span class="line" id="L1648"></span> <span class="line" id="L1649"> <span class="tok-kw">fn</span> <span class="tok-fn">skipWhitespaceCheckEnd</span>(self: <span class="tok-builtin">@This</span>()) !<span class="tok-type">bool</span> {</span> <span class="line" id="L1650"> self.skipWhitespace();</span> <span class="line" id="L1651"> <span class="tok-kw">if</span> (self.cursor >= self.input.len) {</span> <span class="line" id="L1652"> <span class="tok-comment">// End of buffer.</span> </span> <span class="line" id="L1653"> <span class="tok-kw">if</span> (self.is_end_of_input) {</span> <span class="line" id="L1654"> <span class="tok-comment">// End of everything.</span> </span> <span class="line" id="L1655"> <span class="tok-kw">if</span> (self.stackHeight() == <span class="tok-number">0</span>) {</span> <span class="line" id="L1656"> <span class="tok-comment">// We did it!</span> </span> <span class="line" id="L1657"> <span class="tok-kw">return</span> <span class="tok-null">true</span>;</span> <span class="line" id="L1658"> }</span> <span class="line" id="L1659"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnexpectedEndOfInput;</span> <span class="line" id="L1660"> }</span> <span class="line" id="L1661"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.BufferUnderrun;</span> <span class="line" id="L1662"> }</span> <span class="line" id="L1663"> <span class="tok-kw">if</span> (self.stackHeight() == <span class="tok-number">0</span>) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SyntaxError;</span> <span class="line" id="L1664"> <span class="tok-kw">return</span> <span class="tok-null">false</span>;</span> <span class="line" id="L1665"> }</span> <span class="line" id="L1666"></span> <span class="line" id="L1667"> <span class="tok-kw">fn</span> <span class="tok-fn">takeValueSlice</span>(self: <span class="tok-builtin">@This</span>()) []<span class="tok-kw">const</span> <span class="tok-type">u8</span> {</span> <span class="line" id="L1668"> <span class="tok-kw">const</span> slice = self.input[self.value_start..self.cursor];</span> <span class="line" id="L1669"> self.value_start = self.cursor;</span> <span class="line" id="L1670"> <span class="tok-kw">return</span> slice;</span> <span class="line" id="L1671"> }</span> <span class="line" id="L1672"></span> <span class="line" id="L1673"> <span class="tok-kw">fn</span> <span class="tok-fn">endOfBufferInNumber</span>(self: <span class="tok-builtin">@This</span>(), allow_end: <span class="tok-type">bool</span>) !Token {</span> <span class="line" id="L1674"> <span class="tok-kw">const</span> slice = self.takeValueSlice();</span> <span class="line" id="L1675"> <span class="tok-kw">if</span> (self.is_end_of_input) {</span> <span class="line" id="L1676"> <span class="tok-kw">if</span> (!allow_end) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnexpectedEndOfInput;</span> <span class="line" id="L1677"> self.state = .post_value;</span> <span class="line" id="L1678"> <span class="tok-kw">return</span> Token{ .number = slice };</span> <span class="line" id="L1679"> }</span> <span class="line" id="L1680"> <span class="tok-kw">if</span> (slice.len == <span class="tok-number">0</span>) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.BufferUnderrun;</span> <span class="line" id="L1681"> <span class="tok-kw">return</span> Token{ .partial_number = slice };</span> <span class="line" id="L1682"> }</span> <span class="line" id="L1683"></span> <span class="line" id="L1684"> <span class="tok-kw">fn</span> <span class="tok-fn">partialStringCodepoint</span>(self: <span class="tok-builtin">@This</span>()) Token {</span> <span class="line" id="L1685"> <span class="tok-kw">const</span> code_point = self.unicode_code_point;</span> <span class="line" id="L1686"> self.unicode_code_point = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1687"> <span class="tok-kw">var</span> buf: [<span class="tok-number">4</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1688"> <span class="tok-kw">switch</span> (std.unicode.utf8Encode(code_point, &buf) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>) {</span> <span class="line" id="L1689"> <span class="tok-number">1</span> => <span class="tok-kw">return</span> Token{ .partial_string_escaped_1 = buf[<span class="tok-number">0</span>..<span class="tok-number">1</span>].* },</span> <span class="line" id="L1690"> <span class="tok-number">2</span> => <span class="tok-kw">return</span> Token{ .partial_string_escaped_2 = buf[<span class="tok-number">0</span>..<span class="tok-number">2</span>].* },</span> <span class="line" id="L1691"> <span class="tok-number">3</span> => <span class="tok-kw">return</span> Token{ .partial_string_escaped_3 = buf[<span class="tok-number">0</span>..<span class="tok-number">3</span>].* },</span> <span class="line" id="L1692"> <span class="tok-number">4</span> => <span class="tok-kw">return</span> Token{ .partial_string_escaped_4 = buf[<span class="tok-number">0</span>..<span class="tok-number">4</span>].* },</span> <span class="line" id="L1693"> <span class="tok-kw">else</span> => <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L1694"> }</span> <span class="line" id="L1695"> }</span> <span class="line" id="L1696">};</span> <span class="line" id="L1697"></span> <span class="line" id="L1698"><span class="tok-kw">const</span> OBJECT_MODE = <span class="tok-number">0</span>;</span> <span class="line" id="L1699"><span class="tok-kw">const</span> ARRAY_MODE = <span class="tok-number">1</span>;</span> <span class="line" id="L1700"></span> <span class="line" id="L1701"><span class="tok-kw">fn</span> <span class="tok-fn">appendSlice</span>(list: *std.ArrayList(<span class="tok-type">u8</span>), buf: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, max_value_len: <span class="tok-type">usize</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L1702"> <span class="tok-kw">const</span> new_len = std.math.add(<span class="tok-type">usize</span>, list.items.len, buf.len) <span class="tok-kw">catch</span> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.ValueTooLong;</span> <span class="line" id="L1703"> <span class="tok-kw">if</span> (new_len > max_value_len) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.ValueTooLong;</span> <span class="line" id="L1704"> <span class="tok-kw">try</span> list.appendSlice(buf);</span> <span class="line" id="L1705">}</span> <span class="line" id="L1706"></span> <span class="line" id="L1707"><span class="tok-comment">/// For the slice you get from a `Token.number` or `Token.allocated_number`,</span></span> <span class="line" id="L1708"><span class="tok-comment">/// this function returns true if the number doesn't contain any fraction or exponent components.</span></span> <span class="line" id="L1709"><span class="tok-comment">/// Note, the numeric value encoded by the value may still be an integer, such as `1.0`.</span></span> <span class="line" id="L1710"><span class="tok-comment">/// This function is meant to give a hint about whether integer parsing or float parsing should be used on the value.</span></span> <span class="line" id="L1711"><span class="tok-comment">/// This function will not give meaningful results on non-numeric input.</span></span> <span class="line" id="L1712"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">isNumberFormattedLikeAnInteger</span>(value: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">bool</span> {</span> <span class="line" id="L1713"> <span class="tok-kw">return</span> std.mem.indexOfAny(<span class="tok-type">u8</span>, value, <span class="tok-str">".eE"</span>) == <span class="tok-null">null</span>;</span> <span class="line" id="L1714">}</span> <span class="line" id="L1715"></span> <span class="line" id="L1716"><span class="tok-kw">test</span> {</span> <span class="line" id="L1717"> _ = <span class="tok-builtin">@import</span>(<span class="tok-str">"./scanner_test.zig"</span>);</span> <span class="line" id="L1718">}</span> <span class="line" id="L1719"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/json/hashmap.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>json/hashmap.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> Allocator = std.mem.Allocator;</span> <span class="line" id="L3"></span> <span class="line" id="L4"><span class="tok-kw">const</span> ParseOptions = <span class="tok-builtin">@import</span>(<span class="tok-str">"static.zig"</span>).ParseOptions;</span> <span class="line" id="L5"><span class="tok-kw">const</span> innerParse = <span class="tok-builtin">@import</span>(<span class="tok-str">"static.zig"</span>).innerParse;</span> <span class="line" id="L6"><span class="tok-kw">const</span> innerParseFromValue = <span class="tok-builtin">@import</span>(<span class="tok-str">"static.zig"</span>).innerParseFromValue;</span> <span class="line" id="L7"><span class="tok-kw">const</span> Value = <span class="tok-builtin">@import</span>(<span class="tok-str">"dynamic.zig"</span>).Value;</span> <span class="line" id="L8"></span> <span class="line" id="L9"><span class="tok-comment">/// A thin wrapper around `std.StringArrayHashMapUnmanaged` that implements</span></span> <span class="line" id="L10"><span class="tok-comment">/// `jsonParse`, `jsonParseFromValue`, and `jsonStringify`.</span></span> <span class="line" id="L11"><span class="tok-comment">/// This is useful when your JSON schema has an object with arbitrary data keys</span></span> <span class="line" id="L12"><span class="tok-comment">/// instead of comptime-known struct field names.</span></span> <span class="line" id="L13"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">ArrayHashMap</span>(<span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L14"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L15"> map: std.StringArrayHashMapUnmanaged(T) = .{},</span> <span class="line" id="L16"></span> <span class="line" id="L17"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">deinit</span>(self: <span class="tok-builtin">@This</span>(), allocator: Allocator) <span class="tok-type">void</span> {</span> <span class="line" id="L18"> self.map.deinit(allocator);</span> <span class="line" id="L19"> }</span> <span class="line" id="L20"></span> <span class="line" id="L21"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">jsonParse</span>(allocator: Allocator, source: <span class="tok-kw">anytype</span>, options: ParseOptions) !<span class="tok-builtin">@This</span>() {</span> <span class="line" id="L22"> <span class="tok-kw">var</span> map = std.StringArrayHashMapUnmanaged(T){};</span> <span class="line" id="L23"> <span class="tok-kw">errdefer</span> map.deinit(allocator);</span> <span class="line" id="L24"></span> <span class="line" id="L25"> <span class="tok-kw">if</span> (.object_begin != <span class="tok-kw">try</span> source.next()) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnexpectedToken;</span> <span class="line" id="L26"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L27"> <span class="tok-kw">const</span> token = <span class="tok-kw">try</span> source.nextAlloc(allocator, options.allocate.?);</span> <span class="line" id="L28"> <span class="tok-kw">switch</span> (token) {</span> <span class="line" id="L29"> <span class="tok-kw">inline</span> .string, .allocated_string => \|k\| {</span> <span class="line" id="L30"> <span class="tok-kw">const</span> gop = <span class="tok-kw">try</span> map.getOrPut(allocator, k);</span> <span class="line" id="L31"> <span class="tok-kw">if</span> (gop.found_existing) {</span> <span class="line" id="L32"> <span class="tok-kw">switch</span> (options.duplicate_field_behavior) {</span> <span class="line" id="L33"> .use_first => {</span> <span class="line" id="L34"> <span class="tok-comment">// Parse and ignore the redundant value.</span> </span> <span class="line" id="L35"> <span class="tok-comment">// We don't want to skip the value, because we want type checking.</span> </span> <span class="line" id="L36"> _ = <span class="tok-kw">try</span> innerParse(T, allocator, source, options);</span> <span class="line" id="L37"> <span class="tok-kw">continue</span>;</span> <span class="line" id="L38"> },</span> <span class="line" id="L39"> .@"error" => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.DuplicateField,</span> <span class="line" id="L40"> .use_last => {},</span> <span class="line" id="L41"> }</span> <span class="line" id="L42"> }</span> <span class="line" id="L43"> gop.value_ptr. = <span class="tok-kw">try</span> innerParse(T, allocator, source, options);</span> <span class="line" id="L44"> },</span> <span class="line" id="L45"> .object_end => <span class="tok-kw">break</span>,</span> <span class="line" id="L46"> <span class="tok-kw">else</span> => <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L47"> }</span> <span class="line" id="L48"> }</span> <span class="line" id="L49"> <span class="tok-kw">return</span> .{ .map = map };</span> <span class="line" id="L50"> }</span> <span class="line" id="L51"></span> <span class="line" id="L52"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">jsonParseFromValue</span>(allocator: Allocator, source: Value, options: ParseOptions) !<span class="tok-builtin">@This</span>() {</span> <span class="line" id="L53"> <span class="tok-kw">if</span> (source != .object) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnexpectedToken;</span> <span class="line" id="L54"></span> <span class="line" id="L55"> <span class="tok-kw">var</span> map = std.StringArrayHashMapUnmanaged(T){};</span> <span class="line" id="L56"> <span class="tok-kw">errdefer</span> map.deinit(allocator);</span> <span class="line" id="L57"></span> <span class="line" id="L58"> <span class="tok-kw">var</span> it = source.object.iterator();</span> <span class="line" id="L59"> <span class="tok-kw">while</span> (it.next()) \|kv\| {</span> <span class="line" id="L60"> <span class="tok-kw">try</span> map.put(allocator, kv.key_ptr., <span class="tok-kw">try</span> innerParseFromValue(T, allocator, kv.value_ptr., options));</span> <span class="line" id="L61"> }</span> <span class="line" id="L62"> <span class="tok-kw">return</span> .{ .map = map };</span> <span class="line" id="L63"> }</span> <span class="line" id="L64"></span> <span class="line" id="L65"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">jsonStringify</span>(self: <span class="tok-builtin">@This</span>(), jws: <span class="tok-kw">anytype</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L66"> <span class="tok-kw">try</span> jws.beginObject();</span> <span class="line" id="L67"> <span class="tok-kw">var</span> it = self.map.iterator();</span> <span class="line" id="L68"> <span class="tok-kw">while</span> (it.next()) \|kv\| {</span> <span class="line" id="L69"> <span class="tok-kw">try</span> jws.objectField(kv.key_ptr.);</span> <span class="line" id="L70"> <span class="tok-kw">try</span> jws.write(kv.value_ptr.);</span> <span class="line" id="L71"> }</span> <span class="line" id="L72"> <span class="tok-kw">try</span> jws.endObject();</span> <span class="line" id="L73"> }</span> <span class="line" id="L74"> };</span> <span class="line" id="L75">}</span> <span class="line" id="L76"></span> <span class="line" id="L77"><span class="tok-kw">test</span> {</span> <span class="line" id="L78"> _ = <span class="tok-builtin">@import</span>(<span class="tok-str">"hashmap_test.zig"</span>);</span> <span class="line" id="L79">}</span> <span class="line" id="L80"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/json/dynamic.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>json/dynamic.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> debug = std.debug;</span> <span class="line" id="L3"><span class="tok-kw">const</span> ArenaAllocator = std.heap.ArenaAllocator;</span> <span class="line" id="L4"><span class="tok-kw">const</span> ArrayList = std.ArrayList;</span> <span class="line" id="L5"><span class="tok-kw">const</span> StringArrayHashMap = std.StringArrayHashMap;</span> <span class="line" id="L6"><span class="tok-kw">const</span> Allocator = std.mem.Allocator;</span> <span class="line" id="L7"></span> <span class="line" id="L8"><span class="tok-kw">const</span> StringifyOptions = <span class="tok-builtin">@import</span>(<span class="tok-str">"./stringify.zig"</span>).StringifyOptions;</span> <span class="line" id="L9"><span class="tok-kw">const</span> stringify = <span class="tok-builtin">@import</span>(<span class="tok-str">"./stringify.zig"</span>).stringify;</span> <span class="line" id="L10"></span> <span class="line" id="L11"><span class="tok-kw">const</span> ParseOptions = <span class="tok-builtin">@import</span>(<span class="tok-str">"./static.zig"</span>).ParseOptions;</span> <span class="line" id="L12"><span class="tok-kw">const</span> ParseError = <span class="tok-builtin">@import</span>(<span class="tok-str">"./static.zig"</span>).ParseError;</span> <span class="line" id="L13"></span> <span class="line" id="L14"><span class="tok-kw">const</span> JsonScanner = <span class="tok-builtin">@import</span>(<span class="tok-str">"./scanner.zig"</span>).Scanner;</span> <span class="line" id="L15"><span class="tok-kw">const</span> AllocWhen = <span class="tok-builtin">@import</span>(<span class="tok-str">"./scanner.zig"</span>).AllocWhen;</span> <span class="line" id="L16"><span class="tok-kw">const</span> Token = <span class="tok-builtin">@import</span>(<span class="tok-str">"./scanner.zig"</span>).Token;</span> <span class="line" id="L17"><span class="tok-kw">const</span> isNumberFormattedLikeAnInteger = <span class="tok-builtin">@import</span>(<span class="tok-str">"./scanner.zig"</span>).isNumberFormattedLikeAnInteger;</span> <span class="line" id="L18"></span> <span class="line" id="L19"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> ObjectMap = StringArrayHashMap(Value);</span> <span class="line" id="L20"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Array = ArrayList(Value);</span> <span class="line" id="L21"></span> <span class="line" id="L22"><span class="tok-comment">/// Represents any JSON value, potentially containing other JSON values.</span></span> <span class="line" id="L23"><span class="tok-comment">/// A .float value may be an approximation of the original value.</span></span> <span class="line" id="L24"><span class="tok-comment">/// Arbitrary precision numbers can be represented by .number_string values.</span></span> <span class="line" id="L25"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Value = <span class="tok-kw">union</span>(<span class="tok-kw">enum</span>) {</span> <span class="line" id="L26"> <span class="tok-null">null</span>,</span> <span class="line" id="L27"> <span class="tok-type">bool</span>: <span class="tok-type">bool</span>,</span> <span class="line" id="L28"> integer: <span class="tok-type">i64</span>,</span> <span class="line" id="L29"> float: <span class="tok-type">f64</span>,</span> <span class="line" id="L30"> number_string: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L31"> string: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L32"> array: Array,</span> <span class="line" id="L33"> object: ObjectMap,</span> <span class="line" id="L34"></span> <span class="line" id="L35"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">parseFromNumberSlice</span>(s: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) Value {</span> <span class="line" id="L36"> <span class="tok-kw">if</span> (!isNumberFormattedLikeAnInteger(s)) {</span> <span class="line" id="L37"> <span class="tok-kw">const</span> f = std.fmt.parseFloat(<span class="tok-type">f64</span>, s) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L38"> <span class="tok-kw">if</span> (std.math.isFinite(f)) {</span> <span class="line" id="L39"> <span class="tok-kw">return</span> Value{ .float = f };</span> <span class="line" id="L40"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L41"> <span class="tok-kw">return</span> Value{ .number_string = s };</span> <span class="line" id="L42"> }</span> <span class="line" id="L43"> }</span> <span class="line" id="L44"> <span class="tok-kw">if</span> (std.fmt.parseInt(<span class="tok-type">i64</span>, s, <span class="tok-number">10</span>)) \|i\| {</span> <span class="line" id="L45"> <span class="tok-kw">return</span> Value{ .integer = i };</span> <span class="line" id="L46"> } <span class="tok-kw">else</span> \|e\| {</span> <span class="line" id="L47"> <span class="tok-kw">switch</span> (e) {</span> <span class="line" id="L48"> <span class="tok-kw">error</span>.Overflow => <span class="tok-kw">return</span> Value{ .number_string = s },</span> <span class="line" id="L49"> <span class="tok-kw">error</span>.InvalidCharacter => <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L50"> }</span> <span class="line" id="L51"> }</span> <span class="line" id="L52"> }</span> <span class="line" id="L53"></span> <span class="line" id="L54"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">dump</span>(self: Value) <span class="tok-type">void</span> {</span> <span class="line" id="L55"> std.debug.getStderrMutex().lock();</span> <span class="line" id="L56"> <span class="tok-kw">defer</span> std.debug.getStderrMutex().unlock();</span> <span class="line" id="L57"></span> <span class="line" id="L58"> <span class="tok-kw">const</span> stderr = std.io.getStdErr().writer();</span> <span class="line" id="L59"> stringify(self, .{}, stderr) <span class="tok-kw">catch</span> <span class="tok-kw">return</span>;</span> <span class="line" id="L60"> }</span> <span class="line" id="L61"></span> <span class="line" id="L62"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">jsonStringify</span>(value: <span class="tok-builtin">@This</span>(), jws: <span class="tok-kw">anytype</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L63"> <span class="tok-kw">switch</span> (value) {</span> <span class="line" id="L64"> .<span class="tok-null">null</span> => <span class="tok-kw">try</span> jws.write(<span class="tok-null">null</span>),</span> <span class="line" id="L65"> .<span class="tok-type">bool</span> => \|inner\| <span class="tok-kw">try</span> jws.write(inner),</span> <span class="line" id="L66"> .integer => \|inner\| <span class="tok-kw">try</span> jws.write(inner),</span> <span class="line" id="L67"> .float => \|inner\| <span class="tok-kw">try</span> jws.write(inner),</span> <span class="line" id="L68"> .number_string => \|inner\| <span class="tok-kw">try</span> jws.writePreformatted(inner),</span> <span class="line" id="L69"> .string => \|inner\| <span class="tok-kw">try</span> jws.write(inner),</span> <span class="line" id="L70"> .array => \|inner\| <span class="tok-kw">try</span> jws.write(inner.items),</span> <span class="line" id="L71"> .object => \|inner\| {</span> <span class="line" id="L72"> <span class="tok-kw">try</span> jws.beginObject();</span> <span class="line" id="L73"> <span class="tok-kw">var</span> it = inner.iterator();</span> <span class="line" id="L74"> <span class="tok-kw">while</span> (it.next()) \|entry\| {</span> <span class="line" id="L75"> <span class="tok-kw">try</span> jws.objectField(entry.key_ptr.);</span> <span class="line" id="L76"> <span class="tok-kw">try</span> jws.write(entry.value_ptr.);</span> <span class="line" id="L77"> }</span> <span class="line" id="L78"> <span class="tok-kw">try</span> jws.endObject();</span> <span class="line" id="L79"> },</span> <span class="line" id="L80"> }</span> <span class="line" id="L81"> }</span> <span class="line" id="L82"></span> <span class="line" id="L83"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">jsonParse</span>(allocator: Allocator, source: <span class="tok-kw">anytype</span>, options: ParseOptions) ParseError(<span class="tok-builtin">@TypeOf</span>(source.))!<span class="tok-builtin">@This</span>() {</span> <span class="line" id="L84"> _ = options;</span> <span class="line" id="L85"> <span class="tok-comment">// The grammar of the stack is:</span> </span> <span class="line" id="L86"> <span class="tok-comment">// (.array \| .object .string)</span> </span> <span class="line" id="L87"> <span class="tok-kw">var</span> stack = Array.init(allocator);</span> <span class="line" id="L88"> <span class="tok-kw">defer</span> stack.deinit();</span> <span class="line" id="L89"></span> <span class="line" id="L90"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L91"> <span class="tok-comment">// Assert the stack grammar at the top of the stack.</span> </span> <span class="line" id="L92"> debug.assert(stack.items.len == <span class="tok-number">0</span> <span class="tok-kw">or</span></span> <span class="line" id="L93"> stack.items[stack.items.len - <span class="tok-number">1</span>] == .array <span class="tok-kw">or</span></span> <span class="line" id="L94"> (stack.items[stack.items.len - <span class="tok-number">2</span>] == .object <span class="tok-kw">and</span> stack.items[stack.items.len - <span class="tok-number">1</span>] == .string));</span> <span class="line" id="L95"></span> <span class="line" id="L96"> <span class="tok-kw">switch</span> (<span class="tok-kw">try</span> source.nextAlloc(allocator, .alloc_if_needed)) {</span> <span class="line" id="L97"> <span class="tok-kw">inline</span> .string, .allocated_string => \|s\| {</span> <span class="line" id="L98"> <span class="tok-kw">return</span> <span class="tok-kw">try</span> handleCompleteValue(&stack, allocator, source, Value{ .string = s }) <span class="tok-kw">orelse</span> <span class="tok-kw">continue</span>;</span> <span class="line" id="L99"> },</span> <span class="line" id="L100"> <span class="tok-kw">inline</span> .number, .allocated_number => \|slice\| {</span> <span class="line" id="L101"> <span class="tok-kw">return</span> <span class="tok-kw">try</span> handleCompleteValue(&stack, allocator, source, Value.parseFromNumberSlice(slice)) <span class="tok-kw">orelse</span> <span class="tok-kw">continue</span>;</span> <span class="line" id="L102"> },</span> <span class="line" id="L103"></span> <span class="line" id="L104"> .<span class="tok-null">null</span> => <span class="tok-kw">return</span> <span class="tok-kw">try</span> handleCompleteValue(&stack, allocator, source, .<span class="tok-null">null</span>) <span class="tok-kw">orelse</span> <span class="tok-kw">continue</span>,</span> <span class="line" id="L105"> .<span class="tok-null">true</span> => <span class="tok-kw">return</span> <span class="tok-kw">try</span> handleCompleteValue(&stack, allocator, source, Value{ .<span class="tok-type">bool</span> = <span class="tok-null">true</span> }) <span class="tok-kw">orelse</span> <span class="tok-kw">continue</span>,</span> <span class="line" id="L106"> .<span class="tok-null">false</span> => <span class="tok-kw">return</span> <span class="tok-kw">try</span> handleCompleteValue(&stack, allocator, source, Value{ .<span class="tok-type">bool</span> = <span class="tok-null">false</span> }) <span class="tok-kw">orelse</span> <span class="tok-kw">continue</span>,</span> <span class="line" id="L107"></span> <span class="line" id="L108"> .object_begin => {</span> <span class="line" id="L109"> <span class="tok-kw">switch</span> (<span class="tok-kw">try</span> source.nextAlloc(allocator, .alloc_if_needed)) {</span> <span class="line" id="L110"> .object_end => <span class="tok-kw">return</span> <span class="tok-kw">try</span> handleCompleteValue(&stack, allocator, source, Value{ .object = ObjectMap.init(allocator) }) <span class="tok-kw">orelse</span> <span class="tok-kw">continue</span>,</span> <span class="line" id="L111"> <span class="tok-kw">inline</span> .string, .allocated_string => \|key\| {</span> <span class="line" id="L112"> <span class="tok-kw">try</span> stack.appendSlice(&[_]Value{</span> <span class="line" id="L113"> Value{ .object = ObjectMap.init(allocator) },</span> <span class="line" id="L114"> Value{ .string = key },</span> <span class="line" id="L115"> });</span> <span class="line" id="L116"> },</span> <span class="line" id="L117"> <span class="tok-kw">else</span> => <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L118"> }</span> <span class="line" id="L119"> },</span> <span class="line" id="L120"> .array_begin => {</span> <span class="line" id="L121"> <span class="tok-kw">try</span> stack.append(Value{ .array = Array.init(allocator) });</span> <span class="line" id="L122"> },</span> <span class="line" id="L123"> .array_end => <span class="tok-kw">return</span> <span class="tok-kw">try</span> handleCompleteValue(&stack, allocator, source, stack.pop()) <span class="tok-kw">orelse</span> <span class="tok-kw">continue</span>,</span> <span class="line" id="L124"></span> <span class="line" id="L125"> <span class="tok-kw">else</span> => <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L126"> }</span> <span class="line" id="L127"> }</span> <span class="line" id="L128"> }</span> <span class="line" id="L129"></span> <span class="line" id="L130"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">jsonParseFromValue</span>(allocator: Allocator, source: Value, options: ParseOptions) !<span class="tok-builtin">@This</span>() {</span> <span class="line" id="L131"> _ = allocator;</span> <span class="line" id="L132"> _ = options;</span> <span class="line" id="L133"> <span class="tok-kw">return</span> source;</span> <span class="line" id="L134"> }</span> <span class="line" id="L135">};</span> <span class="line" id="L136"></span> <span class="line" id="L137"><span class="tok-kw">fn</span> <span class="tok-fn">handleCompleteValue</span>(stack: Array, allocator: Allocator, source: <span class="tok-kw">anytype</span>, value_: Value) !?Value {</span> <span class="line" id="L138"> <span class="tok-kw">if</span> (stack.items.len == <span class="tok-number">0</span>) <span class="tok-kw">return</span> value_;</span> <span class="line" id="L139"> <span class="tok-kw">var</span> value = value_;</span> <span class="line" id="L140"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L141"> <span class="tok-comment">// Assert the stack grammar at the top of the stack.</span> </span> <span class="line" id="L142"> debug.assert(stack.items[stack.items.len - <span class="tok-number">1</span>] == .array <span class="tok-kw">or</span></span> <span class="line" id="L143"> (stack.items[stack.items.len - <span class="tok-number">2</span>] == .object <span class="tok-kw">and</span> stack.items[stack.items.len - <span class="tok-number">1</span>] == .string));</span> <span class="line" id="L144"> <span class="tok-kw">switch</span> (stack.items[stack.items.len - <span class="tok-number">1</span>]) {</span> <span class="line" id="L145"> .string => \|key\| {</span> <span class="line" id="L146"> <span class="tok-comment">// stack: [..., .object, .string]</span> </span> <span class="line" id="L147"> _ = stack.pop();</span> <span class="line" id="L148"></span> <span class="line" id="L149"> <span class="tok-comment">// stack: [..., .object]</span> </span> <span class="line" id="L150"> <span class="tok-kw">var</span> object = &stack.items[stack.items.len - <span class="tok-number">1</span>].object;</span> <span class="line" id="L151"> <span class="tok-kw">try</span> object.put(key, value);</span> <span class="line" id="L152"></span> <span class="line" id="L153"> <span class="tok-comment">// This is an invalid state to leave the stack in,</span> </span> <span class="line" id="L154"> <span class="tok-comment">// so we have to process the next token before we return.</span> </span> <span class="line" id="L155"> <span class="tok-kw">switch</span> (<span class="tok-kw">try</span> source.nextAlloc(allocator, .alloc_if_needed)) {</span> <span class="line" id="L156"> .object_end => {</span> <span class="line" id="L157"> <span class="tok-comment">// This object is complete.</span> </span> <span class="line" id="L158"> value = stack.pop();</span> <span class="line" id="L159"> <span class="tok-comment">// Effectively recurse now that we have a complete value.</span> </span> <span class="line" id="L160"> <span class="tok-kw">if</span> (stack.items.len == <span class="tok-number">0</span>) <span class="tok-kw">return</span> value;</span> <span class="line" id="L161"> <span class="tok-kw">continue</span>;</span> <span class="line" id="L162"> },</span> <span class="line" id="L163"> <span class="tok-kw">inline</span> .string, .allocated_string => \|next_key\| {</span> <span class="line" id="L164"> <span class="tok-comment">// We've got another key.</span> </span> <span class="line" id="L165"> <span class="tok-kw">try</span> stack.append(Value{ .string = next_key });</span> <span class="line" id="L166"> <span class="tok-comment">// stack: [..., .object, .string]</span> </span> <span class="line" id="L167"> <span class="tok-kw">return</span> <span class="tok-null">null</span>;</span> <span class="line" id="L168"> },</span> <span class="line" id="L169"> <span class="tok-kw">else</span> => <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L170"> }</span> <span class="line" id="L171"> },</span> <span class="line" id="L172"> .array => \|array\| {</span> <span class="line" id="L173"> <span class="tok-comment">// stack: [..., .array]</span> </span> <span class="line" id="L174"> <span class="tok-kw">try</span> array.append(value);</span> <span class="line" id="L175"> <span class="tok-kw">return</span> <span class="tok-null">null</span>;</span> <span class="line" id="L176"> },</span> <span class="line" id="L177"> <span class="tok-kw">else</span> => <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L178"> }</span> <span class="line" id="L179"> }</span> <span class="line" id="L180">}</span> <span class="line" id="L181"></span> <span class="line" id="L182"><span class="tok-kw">test</span> {</span> <span class="line" id="L183"> _ = <span class="tok-builtin">@import</span>(<span class="tok-str">"dynamic_test.zig"</span>);</span> <span class="line" id="L184">}</span> <span class="line" id="L185"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/json/static.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>json/static.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> assert = std.debug.assert;</span> <span class="line" id="L3"><span class="tok-kw">const</span> Allocator = std.mem.Allocator;</span> <span class="line" id="L4"><span class="tok-kw">const</span> ArenaAllocator = std.heap.ArenaAllocator;</span> <span class="line" id="L5"><span class="tok-kw">const</span> ArrayList = std.ArrayList;</span> <span class="line" id="L6"></span> <span class="line" id="L7"><span class="tok-kw">const</span> Scanner = <span class="tok-builtin">@import</span>(<span class="tok-str">"./scanner.zig"</span>).Scanner;</span> <span class="line" id="L8"><span class="tok-kw">const</span> Token = <span class="tok-builtin">@import</span>(<span class="tok-str">"./scanner.zig"</span>).Token;</span> <span class="line" id="L9"><span class="tok-kw">const</span> AllocWhen = <span class="tok-builtin">@import</span>(<span class="tok-str">"./scanner.zig"</span>).AllocWhen;</span> <span class="line" id="L10"><span class="tok-kw">const</span> default_max_value_len = <span class="tok-builtin">@import</span>(<span class="tok-str">"./scanner.zig"</span>).default_max_value_len;</span> <span class="line" id="L11"><span class="tok-kw">const</span> isNumberFormattedLikeAnInteger = <span class="tok-builtin">@import</span>(<span class="tok-str">"./scanner.zig"</span>).isNumberFormattedLikeAnInteger;</span> <span class="line" id="L12"></span> <span class="line" id="L13"><span class="tok-kw">const</span> Value = <span class="tok-builtin">@import</span>(<span class="tok-str">"./dynamic.zig"</span>).Value;</span> <span class="line" id="L14"><span class="tok-kw">const</span> Array = <span class="tok-builtin">@import</span>(<span class="tok-str">"./dynamic.zig"</span>).Array;</span> <span class="line" id="L15"></span> <span class="line" id="L16"><span class="tok-comment">/// Controls how to deal with various inconsistencies between the JSON document and the Zig struct type passed in.</span></span> <span class="line" id="L17"><span class="tok-comment">/// For duplicate fields or unknown fields, set options in this struct.</span></span> <span class="line" id="L18"><span class="tok-comment">/// For missing fields, give the Zig struct fields default values.</span></span> <span class="line" id="L19"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> ParseOptions = <span class="tok-kw">struct</span> {</span> <span class="line" id="L20"> <span class="tok-comment">/// Behaviour when a duplicate field is encountered.</span></span> <span class="line" id="L21"> <span class="tok-comment">/// The default is to return `error.DuplicateField`.</span></span> <span class="line" id="L22"> duplicate_field_behavior: <span class="tok-kw">enum</span> {</span> <span class="line" id="L23"> use_first,</span> <span class="line" id="L24"> @"error",</span> <span class="line" id="L25"> use_last,</span> <span class="line" id="L26"> } = .@"error",</span> <span class="line" id="L27"></span> <span class="line" id="L28"> <span class="tok-comment">/// If false, finding an unknown field returns `error.UnknownField`.</span></span> <span class="line" id="L29"> ignore_unknown_fields: <span class="tok-type">bool</span> = <span class="tok-null">false</span>,</span> <span class="line" id="L30"></span> <span class="line" id="L31"> <span class="tok-comment">/// Passed to `std.json.Scanner.nextAllocMax` or `std.json.Reader.nextAllocMax`.</span></span> <span class="line" id="L32"> <span class="tok-comment">/// The default for `parseFromSlice` or `parseFromTokenSource` with a `std.json.Scanner` input</span></span> <span class="line" id="L33"> <span class="tok-comment">/// is the length of the input slice, which means `error.ValueTooLong` will never be returned.</span></span> <span class="line" id="L34"> <span class="tok-comment">/// The default for `parseFromTokenSource` with a `std.json.Reader` is `std.json.default_max_value_len`.</span></span> <span class="line" id="L35"> <span class="tok-comment">/// Ignored for `parseFromValue` and `parseFromValueLeaky`.</span></span> <span class="line" id="L36"> max_value_len: ?<span class="tok-type">usize</span> = <span class="tok-null">null</span>,</span> <span class="line" id="L37"></span> <span class="line" id="L38"> <span class="tok-comment">/// This determines whether strings should always be copied,</span></span> <span class="line" id="L39"> <span class="tok-comment">/// or if a reference to the given buffer should be preferred if possible.</span></span> <span class="line" id="L40"> <span class="tok-comment">/// The default for `parseFromSlice` or `parseFromTokenSource` with a `std.json.Scanner` input</span></span> <span class="line" id="L41"> <span class="tok-comment">/// is `.alloc_if_needed`.</span></span> <span class="line" id="L42"> <span class="tok-comment">/// The default with a `std.json.Reader` input is `.alloc_always`.</span></span> <span class="line" id="L43"> <span class="tok-comment">/// Ignored for `parseFromValue` and `parseFromValueLeaky`.</span></span> <span class="line" id="L44"> allocate: ?AllocWhen = <span class="tok-null">null</span>,</span> <span class="line" id="L45">};</span> <span class="line" id="L46"></span> <span class="line" id="L47"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">Parsed</span>(<span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L48"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L49"> arena: ArenaAllocator,</span> <span class="line" id="L50"> value: T,</span> <span class="line" id="L51"></span> <span class="line" id="L52"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">deinit</span>(self: <span class="tok-builtin">@This</span>()) <span class="tok-type">void</span> {</span> <span class="line" id="L53"> <span class="tok-kw">const</span> allocator = self.arena.child_allocator;</span> <span class="line" id="L54"> self.arena.deinit();</span> <span class="line" id="L55"> allocator.destroy(self.arena);</span> <span class="line" id="L56"> }</span> <span class="line" id="L57"> };</span> <span class="line" id="L58">}</span> <span class="line" id="L59"></span> <span class="line" id="L60"><span class="tok-comment">/// Parses the json document from `s` and returns the result packaged in a `std.json.Parsed`.</span></span> <span class="line" id="L61"><span class="tok-comment">/// You must call `deinit()` of the returned object to clean up allocated resources.</span></span> <span class="line" id="L62"><span class="tok-comment">/// If you are using a `std.heap.ArenaAllocator` or similar, consider calling `parseFromSliceLeaky` instead.</span></span> <span class="line" id="L63"><span class="tok-comment">/// Note that `error.BufferUnderrun` is not actually possible to return from this function.</span></span> <span class="line" id="L64"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">parseFromSlice</span>(</span> <span class="line" id="L65"> <span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>,</span> <span class="line" id="L66"> allocator: Allocator,</span> <span class="line" id="L67"> s: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L68"> options: ParseOptions,</span> <span class="line" id="L69">) ParseError(Scanner)!Parsed(T) {</span> <span class="line" id="L70"> <span class="tok-kw">var</span> scanner = Scanner.initCompleteInput(allocator, s);</span> <span class="line" id="L71"> <span class="tok-kw">defer</span> scanner.deinit();</span> <span class="line" id="L72"></span> <span class="line" id="L73"> <span class="tok-kw">return</span> parseFromTokenSource(T, allocator, &scanner, options);</span> <span class="line" id="L74">}</span> <span class="line" id="L75"></span> <span class="line" id="L76"><span class="tok-comment">/// Parses the json document from `s` and returns the result.</span></span> <span class="line" id="L77"><span class="tok-comment">/// Allocations made during this operation are not carefully tracked and may not be possible to individually clean up.</span></span> <span class="line" id="L78"><span class="tok-comment">/// It is recommended to use a `std.heap.ArenaAllocator` or similar.</span></span> <span class="line" id="L79"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">parseFromSliceLeaky</span>(</span> <span class="line" id="L80"> <span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>,</span> <span class="line" id="L81"> allocator: Allocator,</span> <span class="line" id="L82"> s: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L83"> options: ParseOptions,</span> <span class="line" id="L84">) ParseError(Scanner)!T {</span> <span class="line" id="L85"> <span class="tok-kw">var</span> scanner = Scanner.initCompleteInput(allocator, s);</span> <span class="line" id="L86"> <span class="tok-kw">defer</span> scanner.deinit();</span> <span class="line" id="L87"></span> <span class="line" id="L88"> <span class="tok-kw">return</span> parseFromTokenSourceLeaky(T, allocator, &scanner, options);</span> <span class="line" id="L89">}</span> <span class="line" id="L90"></span> <span class="line" id="L91"><span class="tok-comment">/// `scanner_or_reader` must be either a `std.json.Scanner` with complete input or a `std.json.Reader`.</span></span> <span class="line" id="L92"><span class="tok-comment">/// Note that `error.BufferUnderrun` is not actually possible to return from this function.</span></span> <span class="line" id="L93"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">parseFromTokenSource</span>(</span> <span class="line" id="L94"> <span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>,</span> <span class="line" id="L95"> allocator: Allocator,</span> <span class="line" id="L96"> scanner_or_reader: <span class="tok-kw">anytype</span>,</span> <span class="line" id="L97"> options: ParseOptions,</span> <span class="line" id="L98">) ParseError(<span class="tok-builtin">@TypeOf</span>(scanner_or_reader.))!Parsed(T) {</span> <span class="line" id="L99"> <span class="tok-kw">var</span> parsed = Parsed(T){</span> <span class="line" id="L100"> .arena = <span class="tok-kw">try</span> allocator.create(ArenaAllocator),</span> <span class="line" id="L101"> .value = <span class="tok-null">undefined</span>,</span> <span class="line" id="L102"> };</span> <span class="line" id="L103"> <span class="tok-kw">errdefer</span> allocator.destroy(parsed.arena);</span> <span class="line" id="L104"> parsed.arena.* = ArenaAllocator.init(allocator);</span> <span class="line" id="L105"> <span class="tok-kw">errdefer</span> parsed.arena.deinit();</span> <span class="line" id="L106"></span> <span class="line" id="L107"> parsed.value = <span class="tok-kw">try</span> parseFromTokenSourceLeaky(T, parsed.arena.allocator(), scanner_or_reader, options);</span> <span class="line" id="L108"></span> <span class="line" id="L109"> <span class="tok-kw">return</span> parsed;</span> <span class="line" id="L110">}</span> <span class="line" id="L111"></span> <span class="line" id="L112"><span class="tok-comment">/// `scanner_or_reader` must be either a `std.json.Scanner` with complete input or a `std.json.Reader`.</span></span> <span class="line" id="L113"><span class="tok-comment">/// Allocations made during this operation are not carefully tracked and may not be possible to individually clean up.</span></span> <span class="line" id="L114"><span class="tok-comment">/// It is recommended to use a `std.heap.ArenaAllocator` or similar.</span></span> <span class="line" id="L115"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">parseFromTokenSourceLeaky</span>(</span> <span class="line" id="L116"> <span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>,</span> <span class="line" id="L117"> allocator: Allocator,</span> <span class="line" id="L118"> scanner_or_reader: <span class="tok-kw">anytype</span>,</span> <span class="line" id="L119"> options: ParseOptions,</span> <span class="line" id="L120">) ParseError(<span class="tok-builtin">@TypeOf</span>(scanner_or_reader.))!T {</span> <span class="line" id="L121"> <span class="tok-kw">if</span> (<span class="tok-builtin">@TypeOf</span>(scanner_or_reader.) == Scanner) {</span> <span class="line" id="L122"> assert(scanner_or_reader.is_end_of_input);</span> <span class="line" id="L123"> }</span> <span class="line" id="L124"> <span class="tok-kw">var</span> resolved_options = options;</span> <span class="line" id="L125"> <span class="tok-kw">if</span> (resolved_options.max_value_len == <span class="tok-null">null</span>) {</span> <span class="line" id="L126"> <span class="tok-kw">if</span> (<span class="tok-builtin">@TypeOf</span>(scanner_or_reader.) == Scanner) {</span> <span class="line" id="L127"> resolved_options.max_value_len = scanner_or_reader.input.len;</span> <span class="line" id="L128"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L129"> resolved_options.max_value_len = default_max_value_len;</span> <span class="line" id="L130"> }</span> <span class="line" id="L131"> }</span> <span class="line" id="L132"> <span class="tok-kw">if</span> (resolved_options.allocate == <span class="tok-null">null</span>) {</span> <span class="line" id="L133"> <span class="tok-kw">if</span> (<span class="tok-builtin">@TypeOf</span>(scanner_or_reader.) == Scanner) {</span> <span class="line" id="L134"> resolved_options.allocate = .alloc_if_needed;</span> <span class="line" id="L135"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L136"> resolved_options.allocate = .alloc_always;</span> <span class="line" id="L137"> }</span> <span class="line" id="L138"> }</span> <span class="line" id="L139"></span> <span class="line" id="L140"> <span class="tok-kw">const</span> value = <span class="tok-kw">try</span> innerParse(T, allocator, scanner_or_reader, resolved_options);</span> <span class="line" id="L141"></span> <span class="line" id="L142"> assert(.end_of_document == <span class="tok-kw">try</span> scanner_or_reader.next());</span> <span class="line" id="L143"></span> <span class="line" id="L144"> <span class="tok-kw">return</span> value;</span> <span class="line" id="L145">}</span> <span class="line" id="L146"></span> <span class="line" id="L147"><span class="tok-comment">/// Like `parseFromSlice`, but the input is an already-parsed `std.json.Value` object.</span></span> <span class="line" id="L148"><span class="tok-comment">/// Only `options.ignore_unknown_fields` is used from `options`.</span></span> <span class="line" id="L149"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">parseFromValue</span>(</span> <span class="line" id="L150"> <span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>,</span> <span class="line" id="L151"> allocator: Allocator,</span> <span class="line" id="L152"> source: Value,</span> <span class="line" id="L153"> options: ParseOptions,</span> <span class="line" id="L154">) ParseFromValueError!Parsed(T) {</span> <span class="line" id="L155"> <span class="tok-kw">var</span> parsed = Parsed(T){</span> <span class="line" id="L156"> .arena = <span class="tok-kw">try</span> allocator.create(ArenaAllocator),</span> <span class="line" id="L157"> .value = <span class="tok-null">undefined</span>,</span> <span class="line" id="L158"> };</span> <span class="line" id="L159"> <span class="tok-kw">errdefer</span> allocator.destroy(parsed.arena);</span> <span class="line" id="L160"> parsed.arena.* = ArenaAllocator.init(allocator);</span> <span class="line" id="L161"> <span class="tok-kw">errdefer</span> parsed.arena.deinit();</span> <span class="line" id="L162"></span> <span class="line" id="L163"> parsed.value = <span class="tok-kw">try</span> parseFromValueLeaky(T, parsed.arena.allocator(), source, options);</span> <span class="line" id="L164"></span> <span class="line" id="L165"> <span class="tok-kw">return</span> parsed;</span> <span class="line" id="L166">}</span> <span class="line" id="L167"></span> <span class="line" id="L168"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">parseFromValueLeaky</span>(</span> <span class="line" id="L169"> <span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>,</span> <span class="line" id="L170"> allocator: Allocator,</span> <span class="line" id="L171"> source: Value,</span> <span class="line" id="L172"> options: ParseOptions,</span> <span class="line" id="L173">) ParseFromValueError!T {</span> <span class="line" id="L174"> <span class="tok-comment">// I guess this function doesn't need to exist,</span> </span> <span class="line" id="L175"> <span class="tok-comment">// but the flow of the sourcecode is easy to follow and grouped nicely with</span> </span> <span class="line" id="L176"> <span class="tok-comment">// this pub redirect function near the top and the implementation near the bottom.</span> </span> <span class="line" id="L177"> <span class="tok-kw">return</span> innerParseFromValue(T, allocator, source, options);</span> <span class="line" id="L178">}</span> <span class="line" id="L179"></span> <span class="line" id="L180"><span class="tok-comment">/// The error set that will be returned when parsing from `Source`.</span></span> <span class="line" id="L181"><span class="tok-comment">/// Note that this may contain `error.BufferUnderrun`, but that error will never actually be returned.</span></span> <span class="line" id="L182"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">ParseError</span>(<span class="tok-kw">comptime</span> Source: <span class="tok-type">type</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L183"> <span class="tok-comment">// A few of these will either always be present or present enough of the time that</span> </span> <span class="line" id="L184"> <span class="tok-comment">// omitting them is more confusing than always including them.</span> </span> <span class="line" id="L185"> <span class="tok-kw">return</span> ParseFromValueError \|\| Source.NextError \|\| Source.PeekError \|\| Source.AllocError;</span> <span class="line" id="L186">}</span> <span class="line" id="L187"></span> <span class="line" id="L188"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> ParseFromValueError = std.fmt.ParseIntError \|\| std.fmt.ParseFloatError \|\| Allocator.Error \|\| <span class="tok-kw">error</span>{</span> <span class="line" id="L189"> UnexpectedToken,</span> <span class="line" id="L190"> InvalidNumber,</span> <span class="line" id="L191"> Overflow,</span> <span class="line" id="L192"> InvalidEnumTag,</span> <span class="line" id="L193"> DuplicateField,</span> <span class="line" id="L194"> UnknownField,</span> <span class="line" id="L195"> MissingField,</span> <span class="line" id="L196"> LengthMismatch,</span> <span class="line" id="L197">};</span> <span class="line" id="L198"></span> <span class="line" id="L199"><span class="tok-comment">/// This is an internal function called recursively</span></span> <span class="line" id="L200"><span class="tok-comment">/// during the implementation of `parseFromTokenSourceLeaky` and similar.</span></span> <span class="line" id="L201"><span class="tok-comment">/// It is exposed primarily to enable custom `jsonParse()` methods to call back into the `parseFrom` system,</span></span> <span class="line" id="L202"><span class="tok-comment">/// such as if you're implementing a custom container of type `T`;</span></span> <span class="line" id="L203"><span class="tok-comment">/// you can call `innerParse(T, ...)` for each of the container's items.</span></span> <span class="line" id="L204"><span class="tok-comment">/// Note that `null` fields are not allowed on the `options` when calling this function.</span></span> <span class="line" id="L205"><span class="tok-comment">/// (The `options` you get in your `jsonParse` method has no `null` fields.)</span></span> <span class="line" id="L206"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">innerParse</span>(</span> <span class="line" id="L207"> <span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>,</span> <span class="line" id="L208"> allocator: Allocator,</span> <span class="line" id="L209"> source: <span class="tok-kw">anytype</span>,</span> <span class="line" id="L210"> options: ParseOptions,</span> <span class="line" id="L211">) ParseError(<span class="tok-builtin">@TypeOf</span>(source.))!T {</span> <span class="line" id="L212"> <span class="tok-kw">switch</span> (<span class="tok-builtin">@typeInfo</span>(T)) {</span> <span class="line" id="L213"> .Bool => {</span> <span class="line" id="L214"> <span class="tok-kw">return</span> <span class="tok-kw">switch</span> (<span class="tok-kw">try</span> source.next()) {</span> <span class="line" id="L215"> .<span class="tok-null">true</span> => <span class="tok-null">true</span>,</span> <span class="line" id="L216"> .<span class="tok-null">false</span> => <span class="tok-null">false</span>,</span> <span class="line" id="L217"> <span class="tok-kw">else</span> => <span class="tok-kw">error</span>.UnexpectedToken,</span> <span class="line" id="L218"> };</span> <span class="line" id="L219"> },</span> <span class="line" id="L220"> .Float, .ComptimeFloat => {</span> <span class="line" id="L221"> <span class="tok-kw">const</span> token = <span class="tok-kw">try</span> source.nextAllocMax(allocator, .alloc_if_needed, options.max_value_len.?);</span> <span class="line" id="L222"> <span class="tok-kw">defer</span> freeAllocated(allocator, token);</span> <span class="line" id="L223"> <span class="tok-kw">const</span> slice = <span class="tok-kw">switch</span> (token) {</span> <span class="line" id="L224"> <span class="tok-kw">inline</span> .number, .allocated_number, .string, .allocated_string => \|slice\| slice,</span> <span class="line" id="L225"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnexpectedToken,</span> <span class="line" id="L226"> };</span> <span class="line" id="L227"> <span class="tok-kw">return</span> <span class="tok-kw">try</span> std.fmt.parseFloat(T, slice);</span> <span class="line" id="L228"> },</span> <span class="line" id="L229"> .Int, .ComptimeInt => {</span> <span class="line" id="L230"> <span class="tok-kw">const</span> token = <span class="tok-kw">try</span> source.nextAllocMax(allocator, .alloc_if_needed, options.max_value_len.?);</span> <span class="line" id="L231"> <span class="tok-kw">defer</span> freeAllocated(allocator, token);</span> <span class="line" id="L232"> <span class="tok-kw">const</span> slice = <span class="tok-kw">switch</span> (token) {</span> <span class="line" id="L233"> <span class="tok-kw">inline</span> .number, .allocated_number, .string, .allocated_string => \|slice\| slice,</span> <span class="line" id="L234"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnexpectedToken,</span> <span class="line" id="L235"> };</span> <span class="line" id="L236"> <span class="tok-kw">return</span> sliceToInt(T, slice);</span> <span class="line" id="L237"> },</span> <span class="line" id="L238"> .Optional => \|optionalInfo\| {</span> <span class="line" id="L239"> <span class="tok-kw">switch</span> (<span class="tok-kw">try</span> source.peekNextTokenType()) {</span> <span class="line" id="L240"> .<span class="tok-null">null</span> => {</span> <span class="line" id="L241"> _ = <span class="tok-kw">try</span> source.next();</span> <span class="line" id="L242"> <span class="tok-kw">return</span> <span class="tok-null">null</span>;</span> <span class="line" id="L243"> },</span> <span class="line" id="L244"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L245"> <span class="tok-kw">return</span> <span class="tok-kw">try</span> innerParse(optionalInfo.child, allocator, source, options);</span> <span class="line" id="L246"> },</span> <span class="line" id="L247"> }</span> <span class="line" id="L248"> },</span> <span class="line" id="L249"> .Enum => {</span> <span class="line" id="L250"> <span class="tok-kw">if</span> (<span class="tok-kw">comptime</span> std.meta.trait.hasFn(<span class="tok-str">"jsonParse"</span>)(T)) {</span> <span class="line" id="L251"> <span class="tok-kw">return</span> T.jsonParse(allocator, source, options);</span> <span class="line" id="L252"> }</span> <span class="line" id="L253"></span> <span class="line" id="L254"> <span class="tok-kw">const</span> token = <span class="tok-kw">try</span> source.nextAllocMax(allocator, .alloc_if_needed, options.max_value_len.?);</span> <span class="line" id="L255"> <span class="tok-kw">defer</span> freeAllocated(allocator, token);</span> <span class="line" id="L256"> <span class="tok-kw">const</span> slice = <span class="tok-kw">switch</span> (token) {</span> <span class="line" id="L257"> <span class="tok-kw">inline</span> .number, .allocated_number, .string, .allocated_string => \|slice\| slice,</span> <span class="line" id="L258"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnexpectedToken,</span> <span class="line" id="L259"> };</span> <span class="line" id="L260"> <span class="tok-kw">return</span> sliceToEnum(T, slice);</span> <span class="line" id="L261"> },</span> <span class="line" id="L262"> .Union => \|unionInfo\| {</span> <span class="line" id="L263"> <span class="tok-kw">if</span> (<span class="tok-kw">comptime</span> std.meta.trait.hasFn(<span class="tok-str">"jsonParse"</span>)(T)) {</span> <span class="line" id="L264"> <span class="tok-kw">return</span> T.jsonParse(allocator, source, options);</span> <span class="line" id="L265"> }</span> <span class="line" id="L266"></span> <span class="line" id="L267"> <span class="tok-kw">if</span> (unionInfo.tag_type == <span class="tok-null">null</span>) <span class="tok-builtin">@compileError</span>(<span class="tok-str">"Unable to parse into untagged union '"</span> ++ <span class="tok-builtin">@typeName</span>(T) ++ <span class="tok-str">"'"</span>);</span> <span class="line" id="L268"></span> <span class="line" id="L269"> <span class="tok-kw">if</span> (.object_begin != <span class="tok-kw">try</span> source.next()) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnexpectedToken;</span> <span class="line" id="L270"></span> <span class="line" id="L271"> <span class="tok-kw">var</span> result: ?T = <span class="tok-null">null</span>;</span> <span class="line" id="L272"> <span class="tok-kw">var</span> name_token: ?Token = <span class="tok-kw">try</span> source.nextAllocMax(allocator, .alloc_if_needed, options.max_value_len.?);</span> <span class="line" id="L273"> <span class="tok-kw">const</span> field_name = <span class="tok-kw">switch</span> (name_token.?) {</span> <span class="line" id="L274"> <span class="tok-kw">inline</span> .string, .allocated_string => \|slice\| slice,</span> <span class="line" id="L275"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L276"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnexpectedToken;</span> <span class="line" id="L277"> },</span> <span class="line" id="L278"> };</span> <span class="line" id="L279"></span> <span class="line" id="L280"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (unionInfo.fields) \|u_field\| {</span> <span class="line" id="L281"> <span class="tok-kw">if</span> (std.mem.eql(<span class="tok-type">u8</span>, u_field.name, field_name)) {</span> <span class="line" id="L282"> <span class="tok-comment">// Free the name token now in case we're using an allocator that optimizes freeing the last allocated object.</span> </span> <span class="line" id="L283"> <span class="tok-comment">// (Recursing into innerParse() might trigger more allocations.)</span> </span> <span class="line" id="L284"> freeAllocated(allocator, name_token.?);</span> <span class="line" id="L285"> name_token = <span class="tok-null">null</span>;</span> <span class="line" id="L286"> <span class="tok-kw">if</span> (u_field.<span class="tok-type">type</span> == <span class="tok-type">void</span>) {</span> <span class="line" id="L287"> <span class="tok-comment">// void isn't really a json type, but we can support void payload union tags with {} as a value.</span> </span> <span class="line" id="L288"> <span class="tok-kw">if</span> (.object_begin != <span class="tok-kw">try</span> source.next()) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnexpectedToken;</span> <span class="line" id="L289"> <span class="tok-kw">if</span> (.object_end != <span class="tok-kw">try</span> source.next()) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnexpectedToken;</span> <span class="line" id="L290"> result = <span class="tok-builtin">@unionInit</span>(T, u_field.name, {});</span> <span class="line" id="L291"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L292"> <span class="tok-comment">// Recurse.</span> </span> <span class="line" id="L293"> result = <span class="tok-builtin">@unionInit</span>(T, u_field.name, <span class="tok-kw">try</span> innerParse(u_field.<span class="tok-type">type</span>, allocator, source, options));</span> <span class="line" id="L294"> }</span> <span class="line" id="L295"> <span class="tok-kw">break</span>;</span> <span class="line" id="L296"> }</span> <span class="line" id="L297"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L298"> <span class="tok-comment">// Didn't match anything.</span> </span> <span class="line" id="L299"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnknownField;</span> <span class="line" id="L300"> }</span> <span class="line" id="L301"></span> <span class="line" id="L302"> <span class="tok-kw">if</span> (.object_end != <span class="tok-kw">try</span> source.next()) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnexpectedToken;</span> <span class="line" id="L303"></span> <span class="line" id="L304"> <span class="tok-kw">return</span> result.?;</span> <span class="line" id="L305"> },</span> <span class="line" id="L306"></span> <span class="line" id="L307"> .Struct => \|structInfo\| {</span> <span class="line" id="L308"> <span class="tok-kw">if</span> (structInfo.is_tuple) {</span> <span class="line" id="L309"> <span class="tok-kw">if</span> (.array_begin != <span class="tok-kw">try</span> source.next()) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnexpectedToken;</span> <span class="line" id="L310"></span> <span class="line" id="L311"> <span class="tok-kw">var</span> r: T = <span class="tok-null">undefined</span>;</span> <span class="line" id="L312"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..structInfo.fields.len) \|i\| {</span> <span class="line" id="L313"> r[i] = <span class="tok-kw">try</span> innerParse(structInfo.fields[i].<span class="tok-type">type</span>, allocator, source, options);</span> <span class="line" id="L314"> }</span> <span class="line" id="L315"></span> <span class="line" id="L316"> <span class="tok-kw">if</span> (.array_end != <span class="tok-kw">try</span> source.next()) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnexpectedToken;</span> <span class="line" id="L317"></span> <span class="line" id="L318"> <span class="tok-kw">return</span> r;</span> <span class="line" id="L319"> }</span> <span class="line" id="L320"></span> <span class="line" id="L321"> <span class="tok-kw">if</span> (<span class="tok-kw">comptime</span> std.meta.trait.hasFn(<span class="tok-str">"jsonParse"</span>)(T)) {</span> <span class="line" id="L322"> <span class="tok-kw">return</span> T.jsonParse(allocator, source, options);</span> <span class="line" id="L323"> }</span> <span class="line" id="L324"></span> <span class="line" id="L325"> <span class="tok-kw">if</span> (.object_begin != <span class="tok-kw">try</span> source.next()) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnexpectedToken;</span> <span class="line" id="L326"></span> <span class="line" id="L327"> <span class="tok-kw">var</span> r: T = <span class="tok-null">undefined</span>;</span> <span class="line" id="L328"> <span class="tok-kw">var</span> fields_seen = [_]<span class="tok-type">bool</span>{<span class="tok-null">false</span>} * structInfo.fields.len;</span> <span class="line" id="L329"></span> <span class="line" id="L330"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L331"> <span class="tok-kw">var</span> name_token: ?Token = <span class="tok-kw">try</span> source.nextAllocMax(allocator, .alloc_if_needed, options.max_value_len.?);</span> <span class="line" id="L332"> <span class="tok-kw">const</span> field_name = <span class="tok-kw">switch</span> (name_token.?) {</span> <span class="line" id="L333"> <span class="tok-kw">inline</span> .string, .allocated_string => \|slice\| slice,</span> <span class="line" id="L334"> .object_end => { <span class="tok-comment">// No more fields.</span> </span> <span class="line" id="L335"> <span class="tok-kw">break</span>;</span> <span class="line" id="L336"> },</span> <span class="line" id="L337"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L338"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnexpectedToken;</span> <span class="line" id="L339"> },</span> <span class="line" id="L340"> };</span> <span class="line" id="L341"></span> <span class="line" id="L342"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (structInfo.fields, <span class="tok-number">0</span>..) \|field, i\| {</span> <span class="line" id="L343"> <span class="tok-kw">if</span> (field.is_comptime) <span class="tok-builtin">@compileError</span>(<span class="tok-str">"comptime fields are not supported: "</span> ++ <span class="tok-builtin">@typeName</span>(T) ++ <span class="tok-str">"."</span> ++ field.name);</span> <span class="line" id="L344"> <span class="tok-kw">if</span> (std.mem.eql(<span class="tok-type">u8</span>, field.name, field_name)) {</span> <span class="line" id="L345"> <span class="tok-comment">// Free the name token now in case we're using an allocator that optimizes freeing the last allocated object.</span> </span> <span class="line" id="L346"> <span class="tok-comment">// (Recursing into innerParse() might trigger more allocations.)</span> </span> <span class="line" id="L347"> freeAllocated(allocator, name_token.?);</span> <span class="line" id="L348"> name_token = <span class="tok-null">null</span>;</span> <span class="line" id="L349"> <span class="tok-kw">if</span> (fields_seen[i]) {</span> <span class="line" id="L350"> <span class="tok-kw">switch</span> (options.duplicate_field_behavior) {</span> <span class="line" id="L351"> .use_first => {</span> <span class="line" id="L352"> <span class="tok-comment">// Parse and ignore the redundant value.</span> </span> <span class="line" id="L353"> <span class="tok-comment">// We don't want to skip the value, because we want type checking.</span> </span> <span class="line" id="L354"> _ = <span class="tok-kw">try</span> innerParse(field.<span class="tok-type">type</span>, allocator, source, options);</span> <span class="line" id="L355"> <span class="tok-kw">break</span>;</span> <span class="line" id="L356"> },</span> <span class="line" id="L357"> .@"error" => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.DuplicateField,</span> <span class="line" id="L358"> .use_last => {},</span> <span class="line" id="L359"> }</span> <span class="line" id="L360"> }</span> <span class="line" id="L361"> <span class="tok-builtin">@field</span>(r, field.name) = <span class="tok-kw">try</span> innerParse(field.<span class="tok-type">type</span>, allocator, source, options);</span> <span class="line" id="L362"> fields_seen[i] = <span class="tok-null">true</span>;</span> <span class="line" id="L363"> <span class="tok-kw">break</span>;</span> <span class="line" id="L364"> }</span> <span class="line" id="L365"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L366"> <span class="tok-comment">// Didn't match anything.</span> </span> <span class="line" id="L367"> freeAllocated(allocator, name_token.?);</span> <span class="line" id="L368"> <span class="tok-kw">if</span> (options.ignore_unknown_fields) {</span> <span class="line" id="L369"> <span class="tok-kw">try</span> source.skipValue();</span> <span class="line" id="L370"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L371"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnknownField;</span> <span class="line" id="L372"> }</span> <span class="line" id="L373"> }</span> <span class="line" id="L374"> }</span> <span class="line" id="L375"> <span class="tok-kw">try</span> fillDefaultStructValues(T, &r, &fields_seen);</span> <span class="line" id="L376"> <span class="tok-kw">return</span> r;</span> <span class="line" id="L377"> },</span> <span class="line" id="L378"></span> <span class="line" id="L379"> .Array => \|arrayInfo\| {</span> <span class="line" id="L380"> <span class="tok-kw">switch</span> (<span class="tok-kw">try</span> source.peekNextTokenType()) {</span> <span class="line" id="L381"> .array_begin => {</span> <span class="line" id="L382"> <span class="tok-comment">// Typical array.</span> </span> <span class="line" id="L383"> <span class="tok-kw">return</span> internalParseArray(T, arrayInfo.child, arrayInfo.len, allocator, source, options);</span> <span class="line" id="L384"> },</span> <span class="line" id="L385"> .string => {</span> <span class="line" id="L386"> <span class="tok-kw">if</span> (arrayInfo.child != <span class="tok-type">u8</span>) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnexpectedToken;</span> <span class="line" id="L387"> <span class="tok-comment">// Fixed-length string.</span> </span> <span class="line" id="L388"></span> <span class="line" id="L389"> <span class="tok-kw">var</span> r: T = <span class="tok-null">undefined</span>;</span> <span class="line" id="L390"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L391"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L392"> <span class="tok-kw">switch</span> (<span class="tok-kw">try</span> source.next()) {</span> <span class="line" id="L393"> .string => \|slice\| {</span> <span class="line" id="L394"> <span class="tok-kw">if</span> (i + slice.len != r.len) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.LengthMismatch;</span> <span class="line" id="L395"> <span class="tok-builtin">@memcpy</span>(r[i..][<span class="tok-number">0</span>..slice.len], slice);</span> <span class="line" id="L396"> <span class="tok-kw">break</span>;</span> <span class="line" id="L397"> },</span> <span class="line" id="L398"> .partial_string => \|slice\| {</span> <span class="line" id="L399"> <span class="tok-kw">if</span> (i + slice.len > r.len) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.LengthMismatch;</span> <span class="line" id="L400"> <span class="tok-builtin">@memcpy</span>(r[i..][<span class="tok-number">0</span>..slice.len], slice);</span> <span class="line" id="L401"> i += slice.len;</span> <span class="line" id="L402"> },</span> <span class="line" id="L403"> .partial_string_escaped_1 => \|arr\| {</span> <span class="line" id="L404"> <span class="tok-kw">if</span> (i + arr.len > r.len) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.LengthMismatch;</span> <span class="line" id="L405"> <span class="tok-builtin">@memcpy</span>(r[i..][<span class="tok-number">0</span>..arr.len], arr[<span class="tok-number">0</span>..]);</span> <span class="line" id="L406"> i += arr.len;</span> <span class="line" id="L407"> },</span> <span class="line" id="L408"> .partial_string_escaped_2 => \|arr\| {</span> <span class="line" id="L409"> <span class="tok-kw">if</span> (i + arr.len > r.len) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.LengthMismatch;</span> <span class="line" id="L410"> <span class="tok-builtin">@memcpy</span>(r[i..][<span class="tok-number">0</span>..arr.len], arr[<span class="tok-number">0</span>..]);</span> <span class="line" id="L411"> i += arr.len;</span> <span class="line" id="L412"> },</span> <span class="line" id="L413"> .partial_string_escaped_3 => \|arr\| {</span> <span class="line" id="L414"> <span class="tok-kw">if</span> (i + arr.len > r.len) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.LengthMismatch;</span> <span class="line" id="L415"> <span class="tok-builtin">@memcpy</span>(r[i..][<span class="tok-number">0</span>..arr.len], arr[<span class="tok-number">0</span>..]);</span> <span class="line" id="L416"> i += arr.len;</span> <span class="line" id="L417"> },</span> <span class="line" id="L418"> .partial_string_escaped_4 => \|arr\| {</span> <span class="line" id="L419"> <span class="tok-kw">if</span> (i + arr.len > r.len) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.LengthMismatch;</span> <span class="line" id="L420"> <span class="tok-builtin">@memcpy</span>(r[i..][<span class="tok-number">0</span>..arr.len], arr[<span class="tok-number">0</span>..]);</span> <span class="line" id="L421"> i += arr.len;</span> <span class="line" id="L422"> },</span> <span class="line" id="L423"> <span class="tok-kw">else</span> => <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L424"> }</span> <span class="line" id="L425"> }</span> <span class="line" id="L426"></span> <span class="line" id="L427"> <span class="tok-kw">return</span> r;</span> <span class="line" id="L428"> },</span> <span class="line" id="L429"></span> <span class="line" id="L430"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnexpectedToken,</span> <span class="line" id="L431"> }</span> <span class="line" id="L432"> },</span> <span class="line" id="L433"></span> <span class="line" id="L434"> .Vector => \|vecInfo\| {</span> <span class="line" id="L435"> <span class="tok-kw">switch</span> (<span class="tok-kw">try</span> source.peekNextTokenType()) {</span> <span class="line" id="L436"> .array_begin => {</span> <span class="line" id="L437"> <span class="tok-kw">return</span> internalParseArray(T, vecInfo.child, vecInfo.len, allocator, source, options);</span> <span class="line" id="L438"> },</span> <span class="line" id="L439"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnexpectedToken,</span> <span class="line" id="L440"> }</span> <span class="line" id="L441"> },</span> <span class="line" id="L442"></span> <span class="line" id="L443"> .Pointer => \|ptrInfo\| {</span> <span class="line" id="L444"> <span class="tok-kw">switch</span> (ptrInfo.size) {</span> <span class="line" id="L445"> .One => {</span> <span class="line" id="L446"> <span class="tok-kw">const</span> r: ptrInfo.child = <span class="tok-kw">try</span> allocator.create(ptrInfo.child);</span> <span class="line" id="L447"> r. = <span class="tok-kw">try</span> innerParse(ptrInfo.child, allocator, source, options);</span> <span class="line" id="L448"> <span class="tok-kw">return</span> r;</span> <span class="line" id="L449"> },</span> <span class="line" id="L450"> .Slice => {</span> <span class="line" id="L451"> <span class="tok-kw">switch</span> (<span class="tok-kw">try</span> source.peekNextTokenType()) {</span> <span class="line" id="L452"> .array_begin => {</span> <span class="line" id="L453"> _ = <span class="tok-kw">try</span> source.next();</span> <span class="line" id="L454"></span> <span class="line" id="L455"> <span class="tok-comment">// Typical array.</span> </span> <span class="line" id="L456"> <span class="tok-kw">var</span> arraylist = ArrayList(ptrInfo.child).init(allocator);</span> <span class="line" id="L457"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L458"> <span class="tok-kw">switch</span> (<span class="tok-kw">try</span> source.peekNextTokenType()) {</span> <span class="line" id="L459"> .array_end => {</span> <span class="line" id="L460"> _ = <span class="tok-kw">try</span> source.next();</span> <span class="line" id="L461"> <span class="tok-kw">break</span>;</span> <span class="line" id="L462"> },</span> <span class="line" id="L463"> <span class="tok-kw">else</span> => {},</span> <span class="line" id="L464"> }</span> <span class="line" id="L465"></span> <span class="line" id="L466"> <span class="tok-kw">try</span> arraylist.ensureUnusedCapacity(<span class="tok-number">1</span>);</span> <span class="line" id="L467"> arraylist.appendAssumeCapacity(<span class="tok-kw">try</span> innerParse(ptrInfo.child, allocator, source, options));</span> <span class="line" id="L468"> }</span> <span class="line" id="L469"></span> <span class="line" id="L470"> <span class="tok-kw">if</span> (ptrInfo.sentinel) \|some\| {</span> <span class="line" id="L471"> <span class="tok-kw">const</span> sentinel_value = <span class="tok-builtin">@as</span>(<span class="tok-kw">align</span>(<span class="tok-number">1</span>) <span class="tok-kw">const</span> ptrInfo.child, <span class="tok-builtin">@ptrCast</span>(some)).;</span> <span class="line" id="L472"> <span class="tok-kw">return</span> <span class="tok-kw">try</span> arraylist.toOwnedSliceSentinel(sentinel_value);</span> <span class="line" id="L473"> }</span> <span class="line" id="L474"></span> <span class="line" id="L475"> <span class="tok-kw">return</span> <span class="tok-kw">try</span> arraylist.toOwnedSlice();</span> <span class="line" id="L476"> },</span> <span class="line" id="L477"> .string => {</span> <span class="line" id="L478"> <span class="tok-kw">if</span> (ptrInfo.child != <span class="tok-type">u8</span>) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnexpectedToken;</span> <span class="line" id="L479"></span> <span class="line" id="L480"> <span class="tok-comment">// Dynamic length string.</span> </span> <span class="line" id="L481"> <span class="tok-kw">if</span> (ptrInfo.sentinel) \|sentinel_ptr\| {</span> <span class="line" id="L482"> <span class="tok-comment">// Use our own array list so we can append the sentinel.</span> </span> <span class="line" id="L483"> <span class="tok-kw">var</span> value_list = ArrayList(<span class="tok-type">u8</span>).init(allocator);</span> <span class="line" id="L484"> _ = <span class="tok-kw">try</span> source.allocNextIntoArrayList(&value_list, .alloc_always);</span> <span class="line" id="L485"> <span class="tok-kw">return</span> <span class="tok-kw">try</span> value_list.toOwnedSliceSentinel(<span class="tok-builtin">@as</span>(<span class="tok-kw">const</span> <span class="tok-type">u8</span>, <span class="tok-builtin">@ptrCast</span>(sentinel_ptr)).);</span> <span class="line" id="L486"> }</span> <span class="line" id="L487"> <span class="tok-kw">if</span> (ptrInfo.is_const) {</span> <span class="line" id="L488"> <span class="tok-kw">switch</span> (<span class="tok-kw">try</span> source.nextAllocMax(allocator, options.allocate.?, options.max_value_len.?)) {</span> <span class="line" id="L489"> <span class="tok-kw">inline</span> .string, .allocated_string => \|slice\| <span class="tok-kw">return</span> slice,</span> <span class="line" id="L490"> <span class="tok-kw">else</span> => <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L491"> }</span> <span class="line" id="L492"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L493"> <span class="tok-comment">// Have to allocate to get a mutable copy.</span> </span> <span class="line" id="L494"> <span class="tok-kw">switch</span> (<span class="tok-kw">try</span> source.nextAllocMax(allocator, .alloc_always, options.max_value_len.?)) {</span> <span class="line" id="L495"> .allocated_string => \|slice\| <span class="tok-kw">return</span> slice,</span> <span class="line" id="L496"> <span class="tok-kw">else</span> => <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L497"> }</span> <span class="line" id="L498"> }</span> <span class="line" id="L499"> },</span> <span class="line" id="L500"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnexpectedToken,</span> <span class="line" id="L501"> }</span> <span class="line" id="L502"> },</span> <span class="line" id="L503"> <span class="tok-kw">else</span> => <span class="tok-builtin">@compileError</span>(<span class="tok-str">"Unable to parse into type '"</span> ++ <span class="tok-builtin">@typeName</span>(T) ++ <span class="tok-str">"'"</span>),</span> <span class="line" id="L504"> }</span> <span class="line" id="L505"> },</span> <span class="line" id="L506"> <span class="tok-kw">else</span> => <span class="tok-builtin">@compileError</span>(<span class="tok-str">"Unable to parse into type '"</span> ++ <span class="tok-builtin">@typeName</span>(T) ++ <span class="tok-str">"'"</span>),</span> <span class="line" id="L507"> }</span> <span class="line" id="L508"> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L509">}</span> <span class="line" id="L510"></span> <span class="line" id="L511"><span class="tok-kw">fn</span> <span class="tok-fn">internalParseArray</span>(</span> <span class="line" id="L512"> <span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>,</span> <span class="line" id="L513"> <span class="tok-kw">comptime</span> Child: <span class="tok-type">type</span>,</span> <span class="line" id="L514"> <span class="tok-kw">comptime</span> len: <span class="tok-type">comptime_int</span>,</span> <span class="line" id="L515"> allocator: Allocator,</span> <span class="line" id="L516"> source: <span class="tok-kw">anytype</span>,</span> <span class="line" id="L517"> options: ParseOptions,</span> <span class="line" id="L518">) !T {</span> <span class="line" id="L519"> assert(.array_begin == <span class="tok-kw">try</span> source.next());</span> <span class="line" id="L520"></span> <span class="line" id="L521"> <span class="tok-kw">var</span> r: T = <span class="tok-null">undefined</span>;</span> <span class="line" id="L522"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L523"> <span class="tok-kw">while</span> (i < len) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L524"> r[i] = <span class="tok-kw">try</span> innerParse(Child, allocator, source, options);</span> <span class="line" id="L525"> }</span> <span class="line" id="L526"></span> <span class="line" id="L527"> <span class="tok-kw">if</span> (.array_end != <span class="tok-kw">try</span> source.next()) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnexpectedToken;</span> <span class="line" id="L528"></span> <span class="line" id="L529"> <span class="tok-kw">return</span> r;</span> <span class="line" id="L530">}</span> <span class="line" id="L531"></span> <span class="line" id="L532"><span class="tok-comment">/// This is an internal function called recursively</span></span> <span class="line" id="L533"><span class="tok-comment">/// during the implementation of `parseFromValueLeaky`.</span></span> <span class="line" id="L534"><span class="tok-comment">/// It is exposed primarily to enable custom `jsonParseFromValue()` methods to call back into the `parseFromValue` system,</span></span> <span class="line" id="L535"><span class="tok-comment">/// such as if you're implementing a custom container of type `T`;</span></span> <span class="line" id="L536"><span class="tok-comment">/// you can call `innerParseFromValue(T, ...)` for each of the container's items.</span></span> <span class="line" id="L537"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">innerParseFromValue</span>(</span> <span class="line" id="L538"> <span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>,</span> <span class="line" id="L539"> allocator: Allocator,</span> <span class="line" id="L540"> source: Value,</span> <span class="line" id="L541"> options: ParseOptions,</span> <span class="line" id="L542">) ParseFromValueError!T {</span> <span class="line" id="L543"> <span class="tok-kw">switch</span> (<span class="tok-builtin">@typeInfo</span>(T)) {</span> <span class="line" id="L544"> .Bool => {</span> <span class="line" id="L545"> <span class="tok-kw">switch</span> (source) {</span> <span class="line" id="L546"> .<span class="tok-type">bool</span> => \|b\| <span class="tok-kw">return</span> b,</span> <span class="line" id="L547"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnexpectedToken,</span> <span class="line" id="L548"> }</span> <span class="line" id="L549"> },</span> <span class="line" id="L550"> .Float, .ComptimeFloat => {</span> <span class="line" id="L551"> <span class="tok-kw">switch</span> (source) {</span> <span class="line" id="L552"> .float => \|f\| <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(T, <span class="tok-builtin">@floatCast</span>(f)),</span> <span class="line" id="L553"> .integer => \|i\| <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(T, <span class="tok-builtin">@floatFromInt</span>(i)),</span> <span class="line" id="L554"> .number_string, .string => \|s\| <span class="tok-kw">return</span> std.fmt.parseFloat(T, s),</span> <span class="line" id="L555"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnexpectedToken,</span> <span class="line" id="L556"> }</span> <span class="line" id="L557"> },</span> <span class="line" id="L558"> .Int, .ComptimeInt => {</span> <span class="line" id="L559"> <span class="tok-kw">switch</span> (source) {</span> <span class="line" id="L560"> .float => \|f\| {</span> <span class="line" id="L561"> <span class="tok-kw">if</span> (<span class="tok-builtin">@round</span>(f) != f) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InvalidNumber;</span> <span class="line" id="L562"> <span class="tok-kw">if</span> (f > std.math.maxInt(T)) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.Overflow;</span> <span class="line" id="L563"> <span class="tok-kw">if</span> (f < std.math.minInt(T)) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.Overflow;</span> <span class="line" id="L564"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(T, <span class="tok-builtin">@intFromFloat</span>(f));</span> <span class="line" id="L565"> },</span> <span class="line" id="L566"> .integer => \|i\| {</span> <span class="line" id="L567"> <span class="tok-kw">if</span> (i > std.math.maxInt(T)) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.Overflow;</span> <span class="line" id="L568"> <span class="tok-kw">if</span> (i < std.math.minInt(T)) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.Overflow;</span> <span class="line" id="L569"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(T, <span class="tok-builtin">@intCast</span>(i));</span> <span class="line" id="L570"> },</span> <span class="line" id="L571"> .number_string, .string => \|s\| {</span> <span class="line" id="L572"> <span class="tok-kw">return</span> sliceToInt(T, s);</span> <span class="line" id="L573"> },</span> <span class="line" id="L574"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnexpectedToken,</span> <span class="line" id="L575"> }</span> <span class="line" id="L576"> },</span> <span class="line" id="L577"> .Optional => \|optionalInfo\| {</span> <span class="line" id="L578"> <span class="tok-kw">switch</span> (source) {</span> <span class="line" id="L579"> .<span class="tok-null">null</span> => <span class="tok-kw">return</span> <span class="tok-null">null</span>,</span> <span class="line" id="L580"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">try</span> innerParseFromValue(optionalInfo.child, allocator, source, options),</span> <span class="line" id="L581"> }</span> <span class="line" id="L582"> },</span> <span class="line" id="L583"> .Enum => {</span> <span class="line" id="L584"> <span class="tok-kw">if</span> (<span class="tok-kw">comptime</span> std.meta.trait.hasFn(<span class="tok-str">"jsonParseFromValue"</span>)(T)) {</span> <span class="line" id="L585"> <span class="tok-kw">return</span> T.jsonParseFromValue(allocator, source, options);</span> <span class="line" id="L586"> }</span> <span class="line" id="L587"></span> <span class="line" id="L588"> <span class="tok-kw">switch</span> (source) {</span> <span class="line" id="L589"> .float => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InvalidEnumTag,</span> <span class="line" id="L590"> .integer => \|i\| <span class="tok-kw">return</span> std.meta.intToEnum(T, i),</span> <span class="line" id="L591"> .number_string, .string => \|s\| <span class="tok-kw">return</span> sliceToEnum(T, s),</span> <span class="line" id="L592"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnexpectedToken,</span> <span class="line" id="L593"> }</span> <span class="line" id="L594"> },</span> <span class="line" id="L595"> .Union => \|unionInfo\| {</span> <span class="line" id="L596"> <span class="tok-kw">if</span> (<span class="tok-kw">comptime</span> std.meta.trait.hasFn(<span class="tok-str">"jsonParseFromValue"</span>)(T)) {</span> <span class="line" id="L597"> <span class="tok-kw">return</span> T.jsonParseFromValue(allocator, source, options);</span> <span class="line" id="L598"> }</span> <span class="line" id="L599"></span> <span class="line" id="L600"> <span class="tok-kw">if</span> (unionInfo.tag_type == <span class="tok-null">null</span>) <span class="tok-builtin">@compileError</span>(<span class="tok-str">"Unable to parse into untagged union '"</span> ++ <span class="tok-builtin">@typeName</span>(T) ++ <span class="tok-str">"'"</span>);</span> <span class="line" id="L601"></span> <span class="line" id="L602"> <span class="tok-kw">if</span> (source != .object) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnexpectedToken;</span> <span class="line" id="L603"> <span class="tok-kw">if</span> (source.object.count() != <span class="tok-number">1</span>) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnexpectedToken;</span> <span class="line" id="L604"></span> <span class="line" id="L605"> <span class="tok-kw">var</span> it = source.object.iterator();</span> <span class="line" id="L606"> <span class="tok-kw">const</span> kv = it.next().?;</span> <span class="line" id="L607"> <span class="tok-kw">const</span> field_name = kv.key_ptr.;</span> <span class="line" id="L608"></span> <span class="line" id="L609"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (unionInfo.fields) \|u_field\| {</span> <span class="line" id="L610"> <span class="tok-kw">if</span> (std.mem.eql(<span class="tok-type">u8</span>, u_field.name, field_name)) {</span> <span class="line" id="L611"> <span class="tok-kw">if</span> (u_field.<span class="tok-type">type</span> == <span class="tok-type">void</span>) {</span> <span class="line" id="L612"> <span class="tok-comment">// void isn't really a json type, but we can support void payload union tags with {} as a value.</span> </span> <span class="line" id="L613"> <span class="tok-kw">if</span> (kv.value_ptr.* != .object) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnexpectedToken;</span> <span class="line" id="L614"> <span class="tok-kw">if</span> (kv.value_ptr..object.count() != <span class="tok-number">0</span>) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnexpectedToken;</span> <span class="line" id="L615"> <span class="tok-kw">return</span> <span class="tok-builtin">@unionInit</span>(T, u_field.name, {});</span> <span class="line" id="L616"> }</span> <span class="line" id="L617"> <span class="tok-comment">// Recurse.</span> </span> <span class="line" id="L618"> <span class="tok-kw">return</span> <span class="tok-builtin">@unionInit</span>(T, u_field.name, <span class="tok-kw">try</span> innerParseFromValue(u_field.<span class="tok-type">type</span>, allocator, kv.value_ptr., options));</span> <span class="line" id="L619"> }</span> <span class="line" id="L620"> }</span> <span class="line" id="L621"> <span class="tok-comment">// Didn't match anything.</span> </span> <span class="line" id="L622"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnknownField;</span> <span class="line" id="L623"> },</span> <span class="line" id="L624"></span> <span class="line" id="L625"> .Struct => \|structInfo\| {</span> <span class="line" id="L626"> <span class="tok-kw">if</span> (structInfo.is_tuple) {</span> <span class="line" id="L627"> <span class="tok-kw">if</span> (source != .array) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnexpectedToken;</span> <span class="line" id="L628"> <span class="tok-kw">if</span> (source.array.items.len != structInfo.fields.len) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnexpectedToken;</span> <span class="line" id="L629"></span> <span class="line" id="L630"> <span class="tok-kw">var</span> r: T = <span class="tok-null">undefined</span>;</span> <span class="line" id="L631"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..structInfo.fields.len, source.array.items) \|i, item\| {</span> <span class="line" id="L632"> r[i] = <span class="tok-kw">try</span> innerParseFromValue(structInfo.fields[i].<span class="tok-type">type</span>, allocator, item, options);</span> <span class="line" id="L633"> }</span> <span class="line" id="L634"></span> <span class="line" id="L635"> <span class="tok-kw">return</span> r;</span> <span class="line" id="L636"> }</span> <span class="line" id="L637"></span> <span class="line" id="L638"> <span class="tok-kw">if</span> (<span class="tok-kw">comptime</span> std.meta.trait.hasFn(<span class="tok-str">"jsonParseFromValue"</span>)(T)) {</span> <span class="line" id="L639"> <span class="tok-kw">return</span> T.jsonParseFromValue(allocator, source, options);</span> <span class="line" id="L640"> }</span> <span class="line" id="L641"></span> <span class="line" id="L642"> <span class="tok-kw">if</span> (source != .object) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnexpectedToken;</span> <span class="line" id="L643"></span> <span class="line" id="L644"> <span class="tok-kw">var</span> r: T = <span class="tok-null">undefined</span>;</span> <span class="line" id="L645"> <span class="tok-kw">var</span> fields_seen = [_]<span class="tok-type">bool</span>{<span class="tok-null">false</span>} ** structInfo.fields.len;</span> <span class="line" id="L646"></span> <span class="line" id="L647"> <span class="tok-kw">var</span> it = source.object.iterator();</span> <span class="line" id="L648"> <span class="tok-kw">while</span> (it.next()) \|kv\| {</span> <span class="line" id="L649"> <span class="tok-kw">const</span> field_name = kv.key_ptr.;</span> <span class="line" id="L650"></span> <span class="line" id="L651"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (structInfo.fields, <span class="tok-number">0</span>..) \|field, i\| {</span> <span class="line" id="L652"> <span class="tok-kw">if</span> (field.is_comptime) <span class="tok-builtin">@compileError</span>(<span class="tok-str">"comptime fields are not supported: "</span> ++ <span class="tok-builtin">@typeName</span>(T) ++ <span class="tok-str">"."</span> ++ field.name);</span> <span class="line" id="L653"> <span class="tok-kw">if</span> (std.mem.eql(<span class="tok-type">u8</span>, field.name, field_name)) {</span> <span class="line" id="L654"> assert(!fields_seen[i]); <span class="tok-comment">// Can't have duplicate keys in a Value.object.</span> </span> <span class="line" id="L655"> <span class="tok-builtin">@field</span>(r, field.name) = <span class="tok-kw">try</span> innerParseFromValue(field.<span class="tok-type">type</span>, allocator, kv.value_ptr., options);</span> <span class="line" id="L656"> fields_seen[i] = <span class="tok-null">true</span>;</span> <span class="line" id="L657"> <span class="tok-kw">break</span>;</span> <span class="line" id="L658"> }</span> <span class="line" id="L659"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L660"> <span class="tok-comment">// Didn't match anything.</span> </span> <span class="line" id="L661"> <span class="tok-kw">if</span> (!options.ignore_unknown_fields) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnknownField;</span> <span class="line" id="L662"> }</span> <span class="line" id="L663"> }</span> <span class="line" id="L664"> <span class="tok-kw">try</span> fillDefaultStructValues(T, &r, &fields_seen);</span> <span class="line" id="L665"> <span class="tok-kw">return</span> r;</span> <span class="line" id="L666"> },</span> <span class="line" id="L667"></span> <span class="line" id="L668"> .Array => \|arrayInfo\| {</span> <span class="line" id="L669"> <span class="tok-kw">switch</span> (source) {</span> <span class="line" id="L670"> .array => \|array\| {</span> <span class="line" id="L671"> <span class="tok-comment">// Typical array.</span> </span> <span class="line" id="L672"> <span class="tok-kw">return</span> innerParseArrayFromArrayValue(T, arrayInfo.child, arrayInfo.len, allocator, array, options);</span> <span class="line" id="L673"> },</span> <span class="line" id="L674"> .string => \|s\| {</span> <span class="line" id="L675"> <span class="tok-kw">if</span> (arrayInfo.child != <span class="tok-type">u8</span>) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnexpectedToken;</span> <span class="line" id="L676"> <span class="tok-comment">// Fixed-length string.</span> </span> <span class="line" id="L677"></span> <span class="line" id="L678"> <span class="tok-kw">if</span> (s.len != arrayInfo.len) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.LengthMismatch;</span> <span class="line" id="L679"></span> <span class="line" id="L680"> <span class="tok-kw">var</span> r: T = <span class="tok-null">undefined</span>;</span> <span class="line" id="L681"> <span class="tok-builtin">@memcpy</span>(r[<span class="tok-number">0</span>..], s);</span> <span class="line" id="L682"> <span class="tok-kw">return</span> r;</span> <span class="line" id="L683"> },</span> <span class="line" id="L684"></span> <span class="line" id="L685"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnexpectedToken,</span> <span class="line" id="L686"> }</span> <span class="line" id="L687"> },</span> <span class="line" id="L688"></span> <span class="line" id="L689"> .Vector => \|vecInfo\| {</span> <span class="line" id="L690"> <span class="tok-kw">switch</span> (source) {</span> <span class="line" id="L691"> .array => \|array\| {</span> <span class="line" id="L692"> <span class="tok-kw">return</span> innerParseArrayFromArrayValue(T, vecInfo.child, vecInfo.len, allocator, array, options);</span> <span class="line" id="L693"> },</span> <span class="line" id="L694"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnexpectedToken,</span> <span class="line" id="L695"> }</span> <span class="line" id="L696"> },</span> <span class="line" id="L697"></span> <span class="line" id="L698"> .Pointer => \|ptrInfo\| {</span> <span class="line" id="L699"> <span class="tok-kw">switch</span> (ptrInfo.size) {</span> <span class="line" id="L700"> .One => {</span> <span class="line" id="L701"> <span class="tok-kw">const</span> r: ptrInfo.child = <span class="tok-kw">try</span> allocator.create(ptrInfo.child);</span> <span class="line" id="L702"> r. = <span class="tok-kw">try</span> innerParseFromValue(ptrInfo.child, allocator, source, options);</span> <span class="line" id="L703"> <span class="tok-kw">return</span> r;</span> <span class="line" id="L704"> },</span> <span class="line" id="L705"> .Slice => {</span> <span class="line" id="L706"> <span class="tok-kw">switch</span> (source) {</span> <span class="line" id="L707"> .array => \|array\| {</span> <span class="line" id="L708"> <span class="tok-kw">const</span> r = <span class="tok-kw">if</span> (ptrInfo.sentinel) \|sentinel_ptr\|</span> <span class="line" id="L709"> <span class="tok-kw">try</span> allocator.allocSentinel(ptrInfo.child, array.items.len, <span class="tok-builtin">@as</span>(<span class="tok-kw">align</span>(<span class="tok-number">1</span>) <span class="tok-kw">const</span> ptrInfo.child, <span class="tok-builtin">@ptrCast</span>(sentinel_ptr)).)</span> <span class="line" id="L710"> <span class="tok-kw">else</span></span> <span class="line" id="L711"> <span class="tok-kw">try</span> allocator.alloc(ptrInfo.child, array.items.len);</span> <span class="line" id="L712"></span> <span class="line" id="L713"> <span class="tok-kw">for</span> (array.items, r) \|item, dest\| {</span> <span class="line" id="L714"> dest. = <span class="tok-kw">try</span> innerParseFromValue(ptrInfo.child, allocator, item, options);</span> <span class="line" id="L715"> }</span> <span class="line" id="L716"></span> <span class="line" id="L717"> <span class="tok-kw">return</span> r;</span> <span class="line" id="L718"> },</span> <span class="line" id="L719"> .string => \|s\| {</span> <span class="line" id="L720"> <span class="tok-kw">if</span> (ptrInfo.child != <span class="tok-type">u8</span>) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnexpectedToken;</span> <span class="line" id="L721"> <span class="tok-comment">// Dynamic length string.</span> </span> <span class="line" id="L722"></span> <span class="line" id="L723"> <span class="tok-kw">const</span> r = <span class="tok-kw">if</span> (ptrInfo.sentinel) \|sentinel_ptr\|</span> <span class="line" id="L724"> <span class="tok-kw">try</span> allocator.allocSentinel(ptrInfo.child, s.len, <span class="tok-builtin">@as</span>(<span class="tok-kw">align</span>(<span class="tok-number">1</span>) <span class="tok-kw">const</span> ptrInfo.child, <span class="tok-builtin">@ptrCast</span>(sentinel_ptr)).)</span> <span class="line" id="L725"> <span class="tok-kw">else</span></span> <span class="line" id="L726"> <span class="tok-kw">try</span> allocator.alloc(ptrInfo.child, s.len);</span> <span class="line" id="L727"> <span class="tok-builtin">@memcpy</span>(r[<span class="tok-number">0</span>..], s);</span> <span class="line" id="L728"></span> <span class="line" id="L729"> <span class="tok-kw">return</span> r;</span> <span class="line" id="L730"> },</span> <span class="line" id="L731"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnexpectedToken,</span> <span class="line" id="L732"> }</span> <span class="line" id="L733"> },</span> <span class="line" id="L734"> <span class="tok-kw">else</span> => <span class="tok-builtin">@compileError</span>(<span class="tok-str">"Unable to parse into type '"</span> ++ <span class="tok-builtin">@typeName</span>(T) ++ <span class="tok-str">"'"</span>),</span> <span class="line" id="L735"> }</span> <span class="line" id="L736"> },</span> <span class="line" id="L737"> <span class="tok-kw">else</span> => <span class="tok-builtin">@compileError</span>(<span class="tok-str">"Unable to parse into type '"</span> ++ <span class="tok-builtin">@typeName</span>(T) ++ <span class="tok-str">"'"</span>),</span> <span class="line" id="L738"> }</span> <span class="line" id="L739">}</span> <span class="line" id="L740"></span> <span class="line" id="L741"><span class="tok-kw">fn</span> <span class="tok-fn">innerParseArrayFromArrayValue</span>(</span> <span class="line" id="L742"> <span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>,</span> <span class="line" id="L743"> <span class="tok-kw">comptime</span> Child: <span class="tok-type">type</span>,</span> <span class="line" id="L744"> <span class="tok-kw">comptime</span> len: <span class="tok-type">comptime_int</span>,</span> <span class="line" id="L745"> allocator: Allocator,</span> <span class="line" id="L746"> array: Array,</span> <span class="line" id="L747"> options: ParseOptions,</span> <span class="line" id="L748">) !T {</span> <span class="line" id="L749"> <span class="tok-kw">if</span> (array.items.len != len) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.LengthMismatch;</span> <span class="line" id="L750"></span> <span class="line" id="L751"> <span class="tok-kw">var</span> r: T = <span class="tok-null">undefined</span>;</span> <span class="line" id="L752"> <span class="tok-kw">for</span> (array.items, <span class="tok-number">0</span>..) \|item, i\| {</span> <span class="line" id="L753"> r[i] = <span class="tok-kw">try</span> innerParseFromValue(Child, allocator, item, options);</span> <span class="line" id="L754"> }</span> <span class="line" id="L755"></span> <span class="line" id="L756"> <span class="tok-kw">return</span> r;</span> <span class="line" id="L757">}</span> <span class="line" id="L758"></span> <span class="line" id="L759"><span class="tok-kw">fn</span> <span class="tok-fn">sliceToInt</span>(<span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>, slice: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) !T {</span> <span class="line" id="L760"> <span class="tok-kw">if</span> (isNumberFormattedLikeAnInteger(slice))</span> <span class="line" id="L761"> <span class="tok-kw">return</span> std.fmt.parseInt(T, slice, <span class="tok-number">10</span>);</span> <span class="line" id="L762"> <span class="tok-comment">// Try to coerce a float to an integer.</span> </span> <span class="line" id="L763"> <span class="tok-kw">const</span> float = <span class="tok-kw">try</span> std.fmt.parseFloat(<span class="tok-type">f128</span>, slice);</span> <span class="line" id="L764"> <span class="tok-kw">if</span> (<span class="tok-builtin">@round</span>(float) != float) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InvalidNumber;</span> <span class="line" id="L765"> <span class="tok-kw">if</span> (float > std.math.maxInt(T) <span class="tok-kw">or</span> float < std.math.minInt(T)) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.Overflow;</span> <span class="line" id="L766"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(T, <span class="tok-builtin">@intCast</span>(<span class="tok-builtin">@as</span>(<span class="tok-type">i128</span>, <span class="tok-builtin">@intFromFloat</span>(float))));</span> <span class="line" id="L767">}</span> <span class="line" id="L768"></span> <span class="line" id="L769"><span class="tok-kw">fn</span> <span class="tok-fn">sliceToEnum</span>(<span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>, slice: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) !T {</span> <span class="line" id="L770"> <span class="tok-comment">// Check for a named value.</span> </span> <span class="line" id="L771"> <span class="tok-kw">if</span> (std.meta.stringToEnum(T, slice)) \|value\| <span class="tok-kw">return</span> value;</span> <span class="line" id="L772"> <span class="tok-comment">// Check for a numeric value.</span> </span> <span class="line" id="L773"> <span class="tok-kw">if</span> (!isNumberFormattedLikeAnInteger(slice)) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InvalidEnumTag;</span> <span class="line" id="L774"> <span class="tok-kw">const</span> n = std.fmt.parseInt(<span class="tok-builtin">@typeInfo</span>(T).Enum.tag_type, slice, <span class="tok-number">10</span>) <span class="tok-kw">catch</span> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InvalidEnumTag;</span> <span class="line" id="L775"> <span class="tok-kw">return</span> std.meta.intToEnum(T, n);</span> <span class="line" id="L776">}</span> <span class="line" id="L777"></span> <span class="line" id="L778"><span class="tok-kw">fn</span> <span class="tok-fn">fillDefaultStructValues</span>(<span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>, r: T, fields_seen: [<span class="tok-builtin">@typeInfo</span>(T).Struct.fields.len]<span class="tok-type">bool</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L779"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (<span class="tok-builtin">@typeInfo</span>(T).Struct.fields, <span class="tok-number">0</span>..) \|field, i\| {</span> <span class="line" id="L780"> <span class="tok-kw">if</span> (!fields_seen[i]) {</span> <span class="line" id="L781"> <span class="tok-kw">if</span> (field.default_value) \|default_ptr\| {</span> <span class="line" id="L782"> <span class="tok-kw">const</span> default = <span class="tok-builtin">@as</span>(<span class="tok-kw">align</span>(<span class="tok-number">1</span>) <span class="tok-kw">const</span> field.<span class="tok-type">type</span>, <span class="tok-builtin">@ptrCast</span>(default_ptr)).;</span> <span class="line" id="L783"> <span class="tok-builtin">@field</span>(r, field.name) = default;</span> <span class="line" id="L784"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L785"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.MissingField;</span> <span class="line" id="L786"> }</span> <span class="line" id="L787"> }</span> <span class="line" id="L788"> }</span> <span class="line" id="L789">}</span> <span class="line" id="L790"></span> <span class="line" id="L791"><span class="tok-kw">fn</span> <span class="tok-fn">freeAllocated</span>(allocator: Allocator, token: Token) <span class="tok-type">void</span> {</span> <span class="line" id="L792"> <span class="tok-kw">switch</span> (token) {</span> <span class="line" id="L793"> .allocated_number, .allocated_string => \|slice\| {</span> <span class="line" id="L794"> allocator.free(slice);</span> <span class="line" id="L795"> },</span> <span class="line" id="L796"> <span class="tok-kw">else</span> => {},</span> <span class="line" id="L797"> }</span> <span class="line" id="L798">}</span> <span class="line" id="L799"></span> <span class="line" id="L800"><span class="tok-kw">test</span> {</span> <span class="line" id="L801"> _ = <span class="tok-builtin">@import</span>(<span class="tok-str">"./static_test.zig"</span>);</span> <span class="line" id="L802">}</span> <span class="line" id="L803"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/crypto/aes_ocb.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/aes_ocb.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> builtin = <span class="tok-builtin">@import</span>(<span class="tok-str">"builtin"</span>);</span> <span class="line" id="L3"><span class="tok-kw">const</span> crypto = std.crypto;</span> <span class="line" id="L4"><span class="tok-kw">const</span> aes = crypto.core.aes;</span> <span class="line" id="L5"><span class="tok-kw">const</span> assert = std.debug.assert;</span> <span class="line" id="L6"><span class="tok-kw">const</span> math = std.math;</span> <span class="line" id="L7"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L8"><span class="tok-kw">const</span> AuthenticationError = crypto.errors.AuthenticationError;</span> <span class="line" id="L9"></span> <span class="line" id="L10"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Aes128Ocb = AesOcb(aes.Aes128);</span> <span class="line" id="L11"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Aes256Ocb = AesOcb(aes.Aes256);</span> <span class="line" id="L12"></span> <span class="line" id="L13"><span class="tok-kw">const</span> Block = [<span class="tok-number">16</span>]<span class="tok-type">u8</span>;</span> <span class="line" id="L14"></span> <span class="line" id="L15"><span class="tok-comment">/// AES-OCB (RFC 7253 - https://competitions.cr.yp.to/round3/ocbv11.pdf)</span></span> <span class="line" id="L16"><span class="tok-kw">fn</span> <span class="tok-fn">AesOcb</span>(<span class="tok-kw">comptime</span> Aes: <span class="tok-kw">anytype</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L17"> <span class="tok-kw">const</span> EncryptCtx = aes.AesEncryptCtx(Aes);</span> <span class="line" id="L18"> <span class="tok-kw">const</span> DecryptCtx = aes.AesDecryptCtx(Aes);</span> <span class="line" id="L19"></span> <span class="line" id="L20"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L21"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> key_length = Aes.key_bits / <span class="tok-number">8</span>;</span> <span class="line" id="L22"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> nonce_length: <span class="tok-type">usize</span> = <span class="tok-number">12</span>;</span> <span class="line" id="L23"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> tag_length: <span class="tok-type">usize</span> = <span class="tok-number">16</span>;</span> <span class="line" id="L24"></span> <span class="line" id="L25"> <span class="tok-kw">const</span> Lx = <span class="tok-kw">struct</span> {</span> <span class="line" id="L26"> star: Block <span class="tok-kw">align</span>(<span class="tok-number">16</span>),</span> <span class="line" id="L27"> dol: Block <span class="tok-kw">align</span>(<span class="tok-number">16</span>),</span> <span class="line" id="L28"> table: [<span class="tok-number">56</span>]Block <span class="tok-kw">align</span>(<span class="tok-number">16</span>) = <span class="tok-null">undefined</span>,</span> <span class="line" id="L29"> upto: <span class="tok-type">usize</span>,</span> <span class="line" id="L30"></span> <span class="line" id="L31"> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">double</span>(l: Block) Block {</span> <span class="line" id="L32"> <span class="tok-kw">const</span> l_ = mem.readIntBig(<span class="tok-type">u128</span>, &l);</span> <span class="line" id="L33"> <span class="tok-kw">const</span> l_2 = (l_ << <span class="tok-number">1</span>) ^ (<span class="tok-number">0x87</span> & -%(l_ >> <span class="tok-number">127</span>));</span> <span class="line" id="L34"> <span class="tok-kw">var</span> l2: Block = <span class="tok-null">undefined</span>;</span> <span class="line" id="L35"> mem.writeIntBig(<span class="tok-type">u128</span>, &l2, l_2);</span> <span class="line" id="L36"> <span class="tok-kw">return</span> l2;</span> <span class="line" id="L37"> }</span> <span class="line" id="L38"></span> <span class="line" id="L39"> <span class="tok-kw">fn</span> <span class="tok-fn">precomp</span>(lx: Lx, upto: <span class="tok-type">usize</span>) []<span class="tok-kw">const</span> Block {</span> <span class="line" id="L40"> <span class="tok-kw">const</span> table = &lx.table;</span> <span class="line" id="L41"> assert(upto < table.len);</span> <span class="line" id="L42"> <span class="tok-kw">var</span> i = lx.upto;</span> <span class="line" id="L43"> <span class="tok-kw">while</span> (i + <span class="tok-number">1</span> <= upto) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L44"> table[i + <span class="tok-number">1</span>] = double(table[i]);</span> <span class="line" id="L45"> }</span> <span class="line" id="L46"> lx.upto = upto;</span> <span class="line" id="L47"> <span class="tok-kw">return</span> lx.table[<span class="tok-number">0</span> .. upto + <span class="tok-number">1</span>];</span> <span class="line" id="L48"> }</span> <span class="line" id="L49"></span> <span class="line" id="L50"> <span class="tok-kw">fn</span> <span class="tok-fn">init</span>(aes_enc_ctx: EncryptCtx) Lx {</span> <span class="line" id="L51"> <span class="tok-kw">const</span> zeros = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} * <span class="tok-number">16</span>;</span> <span class="line" id="L52"> <span class="tok-kw">var</span> star: Block = <span class="tok-null">undefined</span>;</span> <span class="line" id="L53"> aes_enc_ctx.encrypt(&star, &zeros);</span> <span class="line" id="L54"> <span class="tok-kw">const</span> dol = double(star);</span> <span class="line" id="L55"> <span class="tok-kw">var</span> lx = Lx{ .star = star, .dol = dol, .upto = <span class="tok-number">0</span> };</span> <span class="line" id="L56"> lx.table[<span class="tok-number">0</span>] = double(dol);</span> <span class="line" id="L57"> <span class="tok-kw">return</span> lx;</span> <span class="line" id="L58"> }</span> <span class="line" id="L59"> };</span> <span class="line" id="L60"></span> <span class="line" id="L61"> <span class="tok-kw">fn</span> <span class="tok-fn">hash</span>(aes_enc_ctx: EncryptCtx, lx: Lx, a: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) Block {</span> <span class="line" id="L62"> <span class="tok-kw">const</span> full_blocks: <span class="tok-type">usize</span> = a.len / <span class="tok-number">16</span>;</span> <span class="line" id="L63"> <span class="tok-kw">const</span> x_max = <span class="tok-kw">if</span> (full_blocks > <span class="tok-number">0</span>) math.log2_int(<span class="tok-type">usize</span>, full_blocks) <span class="tok-kw">else</span> <span class="tok-number">0</span>;</span> <span class="line" id="L64"> <span class="tok-kw">const</span> lt = lx.precomp(x_max);</span> <span class="line" id="L65"> <span class="tok-kw">var</span> sum = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} * <span class="tok-number">16</span>;</span> <span class="line" id="L66"> <span class="tok-kw">var</span> offset = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} ** <span class="tok-number">16</span>;</span> <span class="line" id="L67"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L68"> <span class="tok-kw">while</span> (i < full_blocks) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L69"> xorWith(&offset, lt[<span class="tok-builtin">@ctz</span>(i + <span class="tok-number">1</span>)]);</span> <span class="line" id="L70"> <span class="tok-kw">var</span> e = xorBlocks(offset, a[i * <span class="tok-number">16</span> ..][<span class="tok-number">0</span>..<span class="tok-number">16</span>].);</span> <span class="line" id="L71"> aes_enc_ctx.encrypt(&e, &e);</span> <span class="line" id="L72"> xorWith(&sum, e);</span> <span class="line" id="L73"> }</span> <span class="line" id="L74"> <span class="tok-kw">const</span> leftover = a.len % <span class="tok-number">16</span>;</span> <span class="line" id="L75"> <span class="tok-kw">if</span> (leftover > <span class="tok-number">0</span>) {</span> <span class="line" id="L76"> xorWith(&offset, lx.star);</span> <span class="line" id="L77"> <span class="tok-kw">var</span> padded = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} * <span class="tok-number">16</span>;</span> <span class="line" id="L78"> <span class="tok-builtin">@memcpy</span>(padded[<span class="tok-number">0</span>..leftover], a[i * <span class="tok-number">16</span> ..][<span class="tok-number">0</span>..leftover]);</span> <span class="line" id="L79"> padded[leftover] = <span class="tok-number">1</span>;</span> <span class="line" id="L80"> <span class="tok-kw">var</span> e = xorBlocks(offset, padded);</span> <span class="line" id="L81"> aes_enc_ctx.encrypt(&e, &e);</span> <span class="line" id="L82"> xorWith(&sum, e);</span> <span class="line" id="L83"> }</span> <span class="line" id="L84"> <span class="tok-kw">return</span> sum;</span> <span class="line" id="L85"> }</span> <span class="line" id="L86"></span> <span class="line" id="L87"> <span class="tok-kw">fn</span> <span class="tok-fn">getOffset</span>(aes_enc_ctx: EncryptCtx, npub: [nonce_length]<span class="tok-type">u8</span>) Block {</span> <span class="line" id="L88"> <span class="tok-kw">var</span> nx = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} ** <span class="tok-number">16</span>;</span> <span class="line" id="L89"> nx[<span class="tok-number">0</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>(<span class="tok-builtin">@as</span>(<span class="tok-type">u7</span>, <span class="tok-builtin">@truncate</span>(tag_length * <span class="tok-number">8</span>)) << <span class="tok-number">1</span>));</span> <span class="line" id="L90"> nx[<span class="tok-number">16</span> - nonce_length - <span class="tok-number">1</span>] = <span class="tok-number">1</span>;</span> <span class="line" id="L91"> nx[nx.len - nonce_length ..].* = npub;</span> <span class="line" id="L92"></span> <span class="line" id="L93"> <span class="tok-kw">const</span> bottom = <span class="tok-builtin">@as</span>(<span class="tok-type">u6</span>, <span class="tok-builtin">@truncate</span>(nx[<span class="tok-number">15</span>]));</span> <span class="line" id="L94"> nx[<span class="tok-number">15</span>] &= <span class="tok-number">0xc0</span>;</span> <span class="line" id="L95"> <span class="tok-kw">var</span> ktop_: Block = <span class="tok-null">undefined</span>;</span> <span class="line" id="L96"> aes_enc_ctx.encrypt(&ktop_, &nx);</span> <span class="line" id="L97"> <span class="tok-kw">const</span> ktop = mem.readIntBig(<span class="tok-type">u128</span>, &ktop_);</span> <span class="line" id="L98"> <span class="tok-kw">var</span> stretch = (<span class="tok-builtin">@as</span>(<span class="tok-type">u192</span>, ktop) << <span class="tok-number">64</span>) \| <span class="tok-builtin">@as</span>(<span class="tok-type">u192</span>, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(ktop >> <span class="tok-number">64</span>)) ^ <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(ktop >> <span class="tok-number">56</span>)));</span> <span class="line" id="L99"> <span class="tok-kw">var</span> offset: Block = <span class="tok-null">undefined</span>;</span> <span class="line" id="L100"> mem.writeIntBig(<span class="tok-type">u128</span>, &offset, <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, <span class="tok-builtin">@truncate</span>(stretch >> (<span class="tok-number">64</span> - <span class="tok-builtin">@as</span>(<span class="tok-type">u7</span>, bottom)))));</span> <span class="line" id="L101"> <span class="tok-kw">return</span> offset;</span> <span class="line" id="L102"> }</span> <span class="line" id="L103"></span> <span class="line" id="L104"> <span class="tok-kw">const</span> has_aesni = std.Target.x86.featureSetHas(builtin.cpu.features, .aes);</span> <span class="line" id="L105"> <span class="tok-kw">const</span> has_armaes = std.Target.aarch64.featureSetHas(builtin.cpu.features, .aes);</span> <span class="line" id="L106"> <span class="tok-kw">const</span> wb: <span class="tok-type">usize</span> = <span class="tok-kw">if</span> ((builtin.cpu.arch == .x86_64 <span class="tok-kw">and</span> has_aesni) <span class="tok-kw">or</span> (builtin.cpu.arch == .aarch64 <span class="tok-kw">and</span> has_armaes)) <span class="tok-number">4</span> <span class="tok-kw">else</span> <span class="tok-number">0</span>;</span> <span class="line" id="L107"></span> <span class="line" id="L108"> <span class="tok-comment">/// c: ciphertext: output buffer should be of size m.len</span></span> <span class="line" id="L109"> <span class="tok-comment">/// tag: authentication tag: output MAC</span></span> <span class="line" id="L110"> <span class="tok-comment">/// m: message</span></span> <span class="line" id="L111"> <span class="tok-comment">/// ad: Associated Data</span></span> <span class="line" id="L112"> <span class="tok-comment">/// npub: public nonce</span></span> <span class="line" id="L113"> <span class="tok-comment">/// k: secret key</span></span> <span class="line" id="L114"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">encrypt</span>(c: []<span class="tok-type">u8</span>, tag: [tag_length]<span class="tok-type">u8</span>, m: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, ad: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, npub: [nonce_length]<span class="tok-type">u8</span>, key: [key_length]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L115"> assert(c.len == m.len);</span> <span class="line" id="L116"></span> <span class="line" id="L117"> <span class="tok-kw">const</span> aes_enc_ctx = Aes.initEnc(key);</span> <span class="line" id="L118"> <span class="tok-kw">const</span> full_blocks: <span class="tok-type">usize</span> = m.len / <span class="tok-number">16</span>;</span> <span class="line" id="L119"> <span class="tok-kw">const</span> x_max = <span class="tok-kw">if</span> (full_blocks > <span class="tok-number">0</span>) math.log2_int(<span class="tok-type">usize</span>, full_blocks) <span class="tok-kw">else</span> <span class="tok-number">0</span>;</span> <span class="line" id="L120"> <span class="tok-kw">var</span> lx = Lx.init(aes_enc_ctx);</span> <span class="line" id="L121"> <span class="tok-kw">const</span> lt = lx.precomp(x_max);</span> <span class="line" id="L122"></span> <span class="line" id="L123"> <span class="tok-kw">var</span> offset = getOffset(aes_enc_ctx, npub);</span> <span class="line" id="L124"> <span class="tok-kw">var</span> sum = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} * <span class="tok-number">16</span>;</span> <span class="line" id="L125"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L126"></span> <span class="line" id="L127"> <span class="tok-kw">while</span> (wb > <span class="tok-number">0</span> <span class="tok-kw">and</span> i + wb <= full_blocks) : (i += wb) {</span> <span class="line" id="L128"> <span class="tok-kw">var</span> offsets: [wb]Block <span class="tok-kw">align</span>(<span class="tok-number">16</span>) = <span class="tok-null">undefined</span>;</span> <span class="line" id="L129"> <span class="tok-kw">var</span> es: [<span class="tok-number">16</span> * wb]<span class="tok-type">u8</span> <span class="tok-kw">align</span>(<span class="tok-number">16</span>) = <span class="tok-null">undefined</span>;</span> <span class="line" id="L130"> <span class="tok-kw">var</span> j: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L131"> <span class="tok-kw">while</span> (j < wb) : (j += <span class="tok-number">1</span>) {</span> <span class="line" id="L132"> xorWith(&offset, lt[<span class="tok-builtin">@ctz</span>(i + <span class="tok-number">1</span> + j)]);</span> <span class="line" id="L133"> offsets[j] = offset;</span> <span class="line" id="L134"> <span class="tok-kw">const</span> p = m[(i + j) * <span class="tok-number">16</span> ..][<span class="tok-number">0</span>..<span class="tok-number">16</span>].;</span> <span class="line" id="L135"> es[j <span class="tok-number">16</span> ..][<span class="tok-number">0</span>..<span class="tok-number">16</span>].* = xorBlocks(p, offsets[j]);</span> <span class="line" id="L136"> xorWith(&sum, p);</span> <span class="line" id="L137"> }</span> <span class="line" id="L138"> aes_enc_ctx.encryptWide(wb, &es, &es);</span> <span class="line" id="L139"> j = <span class="tok-number">0</span>;</span> <span class="line" id="L140"> <span class="tok-kw">while</span> (j < wb) : (j += <span class="tok-number">1</span>) {</span> <span class="line" id="L141"> <span class="tok-kw">const</span> e = es[j * <span class="tok-number">16</span> ..][<span class="tok-number">0</span>..<span class="tok-number">16</span>].;</span> <span class="line" id="L142"> c[(i + j) <span class="tok-number">16</span> ..][<span class="tok-number">0</span>..<span class="tok-number">16</span>].* = xorBlocks(e, offsets[j]);</span> <span class="line" id="L143"> }</span> <span class="line" id="L144"> }</span> <span class="line" id="L145"> <span class="tok-kw">while</span> (i < full_blocks) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L146"> xorWith(&offset, lt[<span class="tok-builtin">@ctz</span>(i + <span class="tok-number">1</span>)]);</span> <span class="line" id="L147"> <span class="tok-kw">const</span> p = m[i * <span class="tok-number">16</span> ..][<span class="tok-number">0</span>..<span class="tok-number">16</span>].;</span> <span class="line" id="L148"> <span class="tok-kw">var</span> e = xorBlocks(p, offset);</span> <span class="line" id="L149"> aes_enc_ctx.encrypt(&e, &e);</span> <span class="line" id="L150"> c[i <span class="tok-number">16</span> ..][<span class="tok-number">0</span>..<span class="tok-number">16</span>].* = xorBlocks(e, offset);</span> <span class="line" id="L151"> xorWith(&sum, p);</span> <span class="line" id="L152"> }</span> <span class="line" id="L153"> <span class="tok-kw">const</span> leftover = m.len % <span class="tok-number">16</span>;</span> <span class="line" id="L154"> <span class="tok-kw">if</span> (leftover > <span class="tok-number">0</span>) {</span> <span class="line" id="L155"> xorWith(&offset, lx.star);</span> <span class="line" id="L156"> <span class="tok-kw">var</span> pad = offset;</span> <span class="line" id="L157"> aes_enc_ctx.encrypt(&pad, &pad);</span> <span class="line" id="L158"> <span class="tok-kw">for</span> (m[i * <span class="tok-number">16</span> ..], <span class="tok-number">0</span>..) \|x, j\| {</span> <span class="line" id="L159"> c[i * <span class="tok-number">16</span> + j] = pad[j] ^ x;</span> <span class="line" id="L160"> }</span> <span class="line" id="L161"> <span class="tok-kw">var</span> e = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} ** <span class="tok-number">16</span>;</span> <span class="line" id="L162"> <span class="tok-builtin">@memcpy</span>(e[<span class="tok-number">0</span>..leftover], m[i * <span class="tok-number">16</span> ..][<span class="tok-number">0</span>..leftover]);</span> <span class="line" id="L163"> e[leftover] = <span class="tok-number">0x80</span>;</span> <span class="line" id="L164"> xorWith(&sum, e);</span> <span class="line" id="L165"> }</span> <span class="line" id="L166"> <span class="tok-kw">var</span> e = xorBlocks(xorBlocks(sum, offset), lx.dol);</span> <span class="line" id="L167"> aes_enc_ctx.encrypt(&e, &e);</span> <span class="line" id="L168"> tag.* = xorBlocks(e, hash(aes_enc_ctx, &lx, ad));</span> <span class="line" id="L169"> }</span> <span class="line" id="L170"></span> <span class="line" id="L171"> <span class="tok-comment">/// m: message: output buffer should be of size c.len</span></span> <span class="line" id="L172"> <span class="tok-comment">/// c: ciphertext</span></span> <span class="line" id="L173"> <span class="tok-comment">/// tag: authentication tag</span></span> <span class="line" id="L174"> <span class="tok-comment">/// ad: Associated Data</span></span> <span class="line" id="L175"> <span class="tok-comment">/// npub: public nonce</span></span> <span class="line" id="L176"> <span class="tok-comment">/// k: secret key</span></span> <span class="line" id="L177"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">decrypt</span>(m: []<span class="tok-type">u8</span>, c: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, tag: [tag_length]<span class="tok-type">u8</span>, ad: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, npub: [nonce_length]<span class="tok-type">u8</span>, key: [key_length]<span class="tok-type">u8</span>) AuthenticationError!<span class="tok-type">void</span> {</span> <span class="line" id="L178"> assert(c.len == m.len);</span> <span class="line" id="L179"></span> <span class="line" id="L180"> <span class="tok-kw">const</span> aes_enc_ctx = Aes.initEnc(key);</span> <span class="line" id="L181"> <span class="tok-kw">const</span> aes_dec_ctx = DecryptCtx.initFromEnc(aes_enc_ctx);</span> <span class="line" id="L182"> <span class="tok-kw">const</span> full_blocks: <span class="tok-type">usize</span> = m.len / <span class="tok-number">16</span>;</span> <span class="line" id="L183"> <span class="tok-kw">const</span> x_max = <span class="tok-kw">if</span> (full_blocks > <span class="tok-number">0</span>) math.log2_int(<span class="tok-type">usize</span>, full_blocks) <span class="tok-kw">else</span> <span class="tok-number">0</span>;</span> <span class="line" id="L184"> <span class="tok-kw">var</span> lx = Lx.init(aes_enc_ctx);</span> <span class="line" id="L185"> <span class="tok-kw">const</span> lt = lx.precomp(x_max);</span> <span class="line" id="L186"></span> <span class="line" id="L187"> <span class="tok-kw">var</span> offset = getOffset(aes_enc_ctx, npub);</span> <span class="line" id="L188"> <span class="tok-kw">var</span> sum = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} ** <span class="tok-number">16</span>;</span> <span class="line" id="L189"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L190"></span> <span class="line" id="L191"> <span class="tok-kw">while</span> (wb > <span class="tok-number">0</span> <span class="tok-kw">and</span> i + wb <= full_blocks) : (i += wb) {</span> <span class="line" id="L192"> <span class="tok-kw">var</span> offsets: [wb]Block <span class="tok-kw">align</span>(<span class="tok-number">16</span>) = <span class="tok-null">undefined</span>;</span> <span class="line" id="L193"> <span class="tok-kw">var</span> es: [<span class="tok-number">16</span> * wb]<span class="tok-type">u8</span> <span class="tok-kw">align</span>(<span class="tok-number">16</span>) = <span class="tok-null">undefined</span>;</span> <span class="line" id="L194"> <span class="tok-kw">var</span> j: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L195"> <span class="tok-kw">while</span> (j < wb) : (j += <span class="tok-number">1</span>) {</span> <span class="line" id="L196"> xorWith(&offset, lt[<span class="tok-builtin">@ctz</span>(i + <span class="tok-number">1</span> + j)]);</span> <span class="line" id="L197"> offsets[j] = offset;</span> <span class="line" id="L198"> <span class="tok-kw">const</span> q = c[(i + j) * <span class="tok-number">16</span> ..][<span class="tok-number">0</span>..<span class="tok-number">16</span>].;</span> <span class="line" id="L199"> es[j <span class="tok-number">16</span> ..][<span class="tok-number">0</span>..<span class="tok-number">16</span>].* = xorBlocks(q, offsets[j]);</span> <span class="line" id="L200"> }</span> <span class="line" id="L201"> aes_dec_ctx.decryptWide(wb, &es, &es);</span> <span class="line" id="L202"> j = <span class="tok-number">0</span>;</span> <span class="line" id="L203"> <span class="tok-kw">while</span> (j < wb) : (j += <span class="tok-number">1</span>) {</span> <span class="line" id="L204"> <span class="tok-kw">const</span> p = xorBlocks(es[j * <span class="tok-number">16</span> ..][<span class="tok-number">0</span>..<span class="tok-number">16</span>]., offsets[j]);</span> <span class="line" id="L205"> m[(i + j) <span class="tok-number">16</span> ..][<span class="tok-number">0</span>..<span class="tok-number">16</span>].* = p;</span> <span class="line" id="L206"> xorWith(&sum, p);</span> <span class="line" id="L207"> }</span> <span class="line" id="L208"> }</span> <span class="line" id="L209"> <span class="tok-kw">while</span> (i < full_blocks) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L210"> xorWith(&offset, lt[<span class="tok-builtin">@ctz</span>(i + <span class="tok-number">1</span>)]);</span> <span class="line" id="L211"> <span class="tok-kw">const</span> q = c[i * <span class="tok-number">16</span> ..][<span class="tok-number">0</span>..<span class="tok-number">16</span>].;</span> <span class="line" id="L212"> <span class="tok-kw">var</span> e = xorBlocks(q, offset);</span> <span class="line" id="L213"> aes_dec_ctx.decrypt(&e, &e);</span> <span class="line" id="L214"> <span class="tok-kw">const</span> p = xorBlocks(e, offset);</span> <span class="line" id="L215"> m[i <span class="tok-number">16</span> ..][<span class="tok-number">0</span>..<span class="tok-number">16</span>].* = p;</span> <span class="line" id="L216"> xorWith(&sum, p);</span> <span class="line" id="L217"> }</span> <span class="line" id="L218"> <span class="tok-kw">const</span> leftover = m.len % <span class="tok-number">16</span>;</span> <span class="line" id="L219"> <span class="tok-kw">if</span> (leftover > <span class="tok-number">0</span>) {</span> <span class="line" id="L220"> xorWith(&offset, lx.star);</span> <span class="line" id="L221"> <span class="tok-kw">var</span> pad = offset;</span> <span class="line" id="L222"> aes_enc_ctx.encrypt(&pad, &pad);</span> <span class="line" id="L223"> <span class="tok-kw">for</span> (c[i * <span class="tok-number">16</span> ..], <span class="tok-number">0</span>..) \|x, j\| {</span> <span class="line" id="L224"> m[i * <span class="tok-number">16</span> + j] = pad[j] ^ x;</span> <span class="line" id="L225"> }</span> <span class="line" id="L226"> <span class="tok-kw">var</span> e = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} ** <span class="tok-number">16</span>;</span> <span class="line" id="L227"> <span class="tok-builtin">@memcpy</span>(e[<span class="tok-number">0</span>..leftover], m[i * <span class="tok-number">16</span> ..][<span class="tok-number">0</span>..leftover]);</span> <span class="line" id="L228"> e[leftover] = <span class="tok-number">0x80</span>;</span> <span class="line" id="L229"> xorWith(&sum, e);</span> <span class="line" id="L230"> }</span> <span class="line" id="L231"> <span class="tok-kw">var</span> e = xorBlocks(xorBlocks(sum, offset), lx.dol);</span> <span class="line" id="L232"> aes_enc_ctx.encrypt(&e, &e);</span> <span class="line" id="L233"> <span class="tok-kw">var</span> computed_tag = xorBlocks(e, hash(aes_enc_ctx, &lx, ad));</span> <span class="line" id="L234"> <span class="tok-kw">const</span> verify = crypto.utils.timingSafeEql([tag_length]<span class="tok-type">u8</span>, computed_tag, tag);</span> <span class="line" id="L235"> crypto.utils.secureZero(<span class="tok-type">u8</span>, &computed_tag);</span> <span class="line" id="L236"> <span class="tok-kw">if</span> (!verify) {</span> <span class="line" id="L237"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.AuthenticationFailed;</span> <span class="line" id="L238"> }</span> <span class="line" id="L239"> }</span> <span class="line" id="L240"> };</span> <span class="line" id="L241">}</span> <span class="line" id="L242"></span> <span class="line" id="L243"><span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">xorBlocks</span>(x: Block, y: Block) Block {</span> <span class="line" id="L244"> <span class="tok-kw">var</span> z: Block = x;</span> <span class="line" id="L245"> <span class="tok-kw">for</span> (&z, <span class="tok-number">0</span>..) \|v, i\| {</span> <span class="line" id="L246"> v. = x[i] ^ y[i];</span> <span class="line" id="L247"> }</span> <span class="line" id="L248"> <span class="tok-kw">return</span> z;</span> <span class="line" id="L249">}</span> <span class="line" id="L250"></span> <span class="line" id="L251"><span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">xorWith</span>(x: Block, y: Block) <span class="tok-type">void</span> {</span> <span class="line" id="L252"> <span class="tok-kw">for</span> (x, <span class="tok-number">0</span>..) \|v, i\| {</span> <span class="line" id="L253"> v.* ^= y[i];</span> <span class="line" id="L254"> }</span> <span class="line" id="L255">}</span> <span class="line" id="L256"></span> <span class="line" id="L257"><span class="tok-kw">const</span> hexToBytes = std.fmt.hexToBytes;</span> <span class="line" id="L258"></span> <span class="line" id="L259"><span class="tok-kw">test</span> <span class="tok-str">"AesOcb test vector 1"</span> {</span> <span class="line" id="L260"> <span class="tok-kw">if</span> (builtin.zig_backend == .stage2_c) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SkipZigTest;</span> <span class="line" id="L261"></span> <span class="line" id="L262"> <span class="tok-kw">var</span> k: [Aes128Ocb.key_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L263"> <span class="tok-kw">var</span> nonce: [Aes128Ocb.nonce_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L264"> <span class="tok-kw">var</span> tag: [Aes128Ocb.tag_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L265"> _ = <span class="tok-kw">try</span> hexToBytes(&k, <span class="tok-str">"000102030405060708090A0B0C0D0E0F"</span>);</span> <span class="line" id="L266"> _ = <span class="tok-kw">try</span> hexToBytes(&nonce, <span class="tok-str">"BBAA99887766554433221100"</span>);</span> <span class="line" id="L267"></span> <span class="line" id="L268"> <span class="tok-kw">var</span> c: [<span class="tok-number">0</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L269"> Aes128Ocb.encrypt(&c, &tag, <span class="tok-str">""</span>, <span class="tok-str">""</span>, nonce, k);</span> <span class="line" id="L270"></span> <span class="line" id="L271"> <span class="tok-kw">var</span> expected_tag: [tag.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L272"> _ = <span class="tok-kw">try</span> hexToBytes(&expected_tag, <span class="tok-str">"785407BFFFC8AD9EDCC5520AC9111EE6"</span>);</span> <span class="line" id="L273"></span> <span class="line" id="L274"> <span class="tok-kw">var</span> m: [<span class="tok-number">0</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L275"> <span class="tok-kw">try</span> Aes128Ocb.decrypt(&m, <span class="tok-str">""</span>, tag, <span class="tok-str">""</span>, nonce, k);</span> <span class="line" id="L276">}</span> <span class="line" id="L277"></span> <span class="line" id="L278"><span class="tok-kw">test</span> <span class="tok-str">"AesOcb test vector 2"</span> {</span> <span class="line" id="L279"> <span class="tok-kw">if</span> (builtin.zig_backend == .stage2_c) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SkipZigTest;</span> <span class="line" id="L280"></span> <span class="line" id="L281"> <span class="tok-kw">var</span> k: [Aes128Ocb.key_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L282"> <span class="tok-kw">var</span> nonce: [Aes128Ocb.nonce_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L283"> <span class="tok-kw">var</span> tag: [Aes128Ocb.tag_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L284"> <span class="tok-kw">var</span> ad: [<span class="tok-number">40</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L285"> _ = <span class="tok-kw">try</span> hexToBytes(&k, <span class="tok-str">"000102030405060708090A0B0C0D0E0F"</span>);</span> <span class="line" id="L286"> _ = <span class="tok-kw">try</span> hexToBytes(&ad, <span class="tok-str">"000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F2021222324252627"</span>);</span> <span class="line" id="L287"> _ = <span class="tok-kw">try</span> hexToBytes(&nonce, <span class="tok-str">"BBAA9988776655443322110E"</span>);</span> <span class="line" id="L288"></span> <span class="line" id="L289"> <span class="tok-kw">var</span> c: [<span class="tok-number">0</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L290"> Aes128Ocb.encrypt(&c, &tag, <span class="tok-str">""</span>, &ad, nonce, k);</span> <span class="line" id="L291"></span> <span class="line" id="L292"> <span class="tok-kw">var</span> expected_tag: [tag.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L293"> _ = <span class="tok-kw">try</span> hexToBytes(&expected_tag, <span class="tok-str">"C5CD9D1850C141E358649994EE701B68"</span>);</span> <span class="line" id="L294"></span> <span class="line" id="L295"> <span class="tok-kw">var</span> m: [<span class="tok-number">0</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L296"> <span class="tok-kw">try</span> Aes128Ocb.decrypt(&m, &c, tag, &ad, nonce, k);</span> <span class="line" id="L297">}</span> <span class="line" id="L298"></span> <span class="line" id="L299"><span class="tok-kw">test</span> <span class="tok-str">"AesOcb test vector 3"</span> {</span> <span class="line" id="L300"> <span class="tok-kw">if</span> (builtin.zig_backend == .stage2_c) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SkipZigTest;</span> <span class="line" id="L301"></span> <span class="line" id="L302"> <span class="tok-kw">var</span> k: [Aes128Ocb.key_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L303"> <span class="tok-kw">var</span> nonce: [Aes128Ocb.nonce_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L304"> <span class="tok-kw">var</span> tag: [Aes128Ocb.tag_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L305"> <span class="tok-kw">var</span> m: [<span class="tok-number">40</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L306"> <span class="tok-kw">var</span> c: [m.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L307"> _ = <span class="tok-kw">try</span> hexToBytes(&k, <span class="tok-str">"000102030405060708090A0B0C0D0E0F"</span>);</span> <span class="line" id="L308"> _ = <span class="tok-kw">try</span> hexToBytes(&m, <span class="tok-str">"000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F2021222324252627"</span>);</span> <span class="line" id="L309"> _ = <span class="tok-kw">try</span> hexToBytes(&nonce, <span class="tok-str">"BBAA9988776655443322110F"</span>);</span> <span class="line" id="L310"></span> <span class="line" id="L311"> Aes128Ocb.encrypt(&c, &tag, &m, <span class="tok-str">""</span>, nonce, k);</span> <span class="line" id="L312"></span> <span class="line" id="L313"> <span class="tok-kw">var</span> expected_c: [c.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L314"> <span class="tok-kw">var</span> expected_tag: [tag.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L315"> _ = <span class="tok-kw">try</span> hexToBytes(&expected_tag, <span class="tok-str">"479AD363AC366B95A98CA5F3000B1479"</span>);</span> <span class="line" id="L316"> _ = <span class="tok-kw">try</span> hexToBytes(&expected_c, <span class="tok-str">"4412923493C57D5DE0D700F753CCE0D1D2D95060122E9F15A5DDBFC5787E50B5CC55EE507BCB084E"</span>);</span> <span class="line" id="L317"></span> <span class="line" id="L318"> <span class="tok-kw">var</span> m2: [m.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L319"> <span class="tok-kw">try</span> Aes128Ocb.decrypt(&m2, &c, tag, <span class="tok-str">""</span>, nonce, k);</span> <span class="line" id="L320"> assert(mem.eql(<span class="tok-type">u8</span>, &m, &m2));</span> <span class="line" id="L321">}</span> <span class="line" id="L322"></span> <span class="line" id="L323"><span class="tok-kw">test</span> <span class="tok-str">"AesOcb test vector 4"</span> {</span> <span class="line" id="L324"> <span class="tok-kw">if</span> (builtin.zig_backend == .stage2_c) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SkipZigTest;</span> <span class="line" id="L325"></span> <span class="line" id="L326"> <span class="tok-kw">var</span> k: [Aes128Ocb.key_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L327"> <span class="tok-kw">var</span> nonce: [Aes128Ocb.nonce_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L328"> <span class="tok-kw">var</span> tag: [Aes128Ocb.tag_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L329"> <span class="tok-kw">var</span> m: [<span class="tok-number">40</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L330"> <span class="tok-kw">var</span> ad = m;</span> <span class="line" id="L331"> <span class="tok-kw">var</span> c: [m.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L332"> _ = <span class="tok-kw">try</span> hexToBytes(&k, <span class="tok-str">"000102030405060708090A0B0C0D0E0F"</span>);</span> <span class="line" id="L333"> _ = <span class="tok-kw">try</span> hexToBytes(&m, <span class="tok-str">"000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F2021222324252627"</span>);</span> <span class="line" id="L334"> _ = <span class="tok-kw">try</span> hexToBytes(&nonce, <span class="tok-str">"BBAA99887766554433221104"</span>);</span> <span class="line" id="L335"></span> <span class="line" id="L336"> Aes128Ocb.encrypt(&c, &tag, &m, &ad, nonce, k);</span> <span class="line" id="L337"></span> <span class="line" id="L338"> <span class="tok-kw">var</span> expected_c: [c.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L339"> <span class="tok-kw">var</span> expected_tag: [tag.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L340"> _ = <span class="tok-kw">try</span> hexToBytes(&expected_tag, <span class="tok-str">"3AD7A4FF3835B8C5701C1CCEC8FC3358"</span>);</span> <span class="line" id="L341"> _ = <span class="tok-kw">try</span> hexToBytes(&expected_c, <span class="tok-str">"571D535B60B277188BE5147170A9A22C"</span>);</span> <span class="line" id="L342"></span> <span class="line" id="L343"> <span class="tok-kw">var</span> m2: [m.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L344"> <span class="tok-kw">try</span> Aes128Ocb.decrypt(&m2, &c, tag, &ad, nonce, k);</span> <span class="line" id="L345"> assert(mem.eql(<span class="tok-type">u8</span>, &m, &m2));</span> <span class="line" id="L346">}</span> <span class="line" id="L347"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/crypto/sha2.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/sha2.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"../std.zig"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> builtin = <span class="tok-builtin">@import</span>(<span class="tok-str">"builtin"</span>);</span> <span class="line" id="L3"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L4"><span class="tok-kw">const</span> math = std.math;</span> <span class="line" id="L5"><span class="tok-kw">const</span> htest = <span class="tok-builtin">@import</span>(<span class="tok-str">"test.zig"</span>);</span> <span class="line" id="L6"></span> <span class="line" id="L7"><span class="tok-comment">/////////////////////</span> </span> <span class="line" id="L8"><span class="tok-comment">// Sha224 + Sha256</span> </span> <span class="line" id="L9"></span> <span class="line" id="L10"><span class="tok-kw">const</span> RoundParam256 = <span class="tok-kw">struct</span> {</span> <span class="line" id="L11"> a: <span class="tok-type">usize</span>,</span> <span class="line" id="L12"> b: <span class="tok-type">usize</span>,</span> <span class="line" id="L13"> c: <span class="tok-type">usize</span>,</span> <span class="line" id="L14"> d: <span class="tok-type">usize</span>,</span> <span class="line" id="L15"> e: <span class="tok-type">usize</span>,</span> <span class="line" id="L16"> f: <span class="tok-type">usize</span>,</span> <span class="line" id="L17"> g: <span class="tok-type">usize</span>,</span> <span class="line" id="L18"> h: <span class="tok-type">usize</span>,</span> <span class="line" id="L19"> i: <span class="tok-type">usize</span>,</span> <span class="line" id="L20">};</span> <span class="line" id="L21"></span> <span class="line" id="L22"><span class="tok-kw">fn</span> <span class="tok-fn">roundParam256</span>(a: <span class="tok-type">usize</span>, b: <span class="tok-type">usize</span>, c: <span class="tok-type">usize</span>, d: <span class="tok-type">usize</span>, e: <span class="tok-type">usize</span>, f: <span class="tok-type">usize</span>, g: <span class="tok-type">usize</span>, h: <span class="tok-type">usize</span>, i: <span class="tok-type">usize</span>) RoundParam256 {</span> <span class="line" id="L23"> <span class="tok-kw">return</span> RoundParam256{</span> <span class="line" id="L24"> .a = a,</span> <span class="line" id="L25"> .b = b,</span> <span class="line" id="L26"> .c = c,</span> <span class="line" id="L27"> .d = d,</span> <span class="line" id="L28"> .e = e,</span> <span class="line" id="L29"> .f = f,</span> <span class="line" id="L30"> .g = g,</span> <span class="line" id="L31"> .h = h,</span> <span class="line" id="L32"> .i = i,</span> <span class="line" id="L33"> };</span> <span class="line" id="L34">}</span> <span class="line" id="L35"></span> <span class="line" id="L36"><span class="tok-kw">const</span> Sha2Params32 = <span class="tok-kw">struct</span> {</span> <span class="line" id="L37"> iv0: <span class="tok-type">u32</span>,</span> <span class="line" id="L38"> iv1: <span class="tok-type">u32</span>,</span> <span class="line" id="L39"> iv2: <span class="tok-type">u32</span>,</span> <span class="line" id="L40"> iv3: <span class="tok-type">u32</span>,</span> <span class="line" id="L41"> iv4: <span class="tok-type">u32</span>,</span> <span class="line" id="L42"> iv5: <span class="tok-type">u32</span>,</span> <span class="line" id="L43"> iv6: <span class="tok-type">u32</span>,</span> <span class="line" id="L44"> iv7: <span class="tok-type">u32</span>,</span> <span class="line" id="L45"> digest_bits: <span class="tok-type">usize</span>,</span> <span class="line" id="L46">};</span> <span class="line" id="L47"></span> <span class="line" id="L48"><span class="tok-kw">const</span> Sha224Params = Sha2Params32{</span> <span class="line" id="L49"> .iv0 = <span class="tok-number">0xC1059ED8</span>,</span> <span class="line" id="L50"> .iv1 = <span class="tok-number">0x367CD507</span>,</span> <span class="line" id="L51"> .iv2 = <span class="tok-number">0x3070DD17</span>,</span> <span class="line" id="L52"> .iv3 = <span class="tok-number">0xF70E5939</span>,</span> <span class="line" id="L53"> .iv4 = <span class="tok-number">0xFFC00B31</span>,</span> <span class="line" id="L54"> .iv5 = <span class="tok-number">0x68581511</span>,</span> <span class="line" id="L55"> .iv6 = <span class="tok-number">0x64F98FA7</span>,</span> <span class="line" id="L56"> .iv7 = <span class="tok-number">0xBEFA4FA4</span>,</span> <span class="line" id="L57"> .digest_bits = <span class="tok-number">224</span>,</span> <span class="line" id="L58">};</span> <span class="line" id="L59"></span> <span class="line" id="L60"><span class="tok-kw">const</span> Sha256Params = Sha2Params32{</span> <span class="line" id="L61"> .iv0 = <span class="tok-number">0x6A09E667</span>,</span> <span class="line" id="L62"> .iv1 = <span class="tok-number">0xBB67AE85</span>,</span> <span class="line" id="L63"> .iv2 = <span class="tok-number">0x3C6EF372</span>,</span> <span class="line" id="L64"> .iv3 = <span class="tok-number">0xA54FF53A</span>,</span> <span class="line" id="L65"> .iv4 = <span class="tok-number">0x510E527F</span>,</span> <span class="line" id="L66"> .iv5 = <span class="tok-number">0x9B05688C</span>,</span> <span class="line" id="L67"> .iv6 = <span class="tok-number">0x1F83D9AB</span>,</span> <span class="line" id="L68"> .iv7 = <span class="tok-number">0x5BE0CD19</span>,</span> <span class="line" id="L69"> .digest_bits = <span class="tok-number">256</span>,</span> <span class="line" id="L70">};</span> <span class="line" id="L71"></span> <span class="line" id="L72"><span class="tok-kw">const</span> v4u32 = <span class="tok-builtin">@Vector</span>(<span class="tok-number">4</span>, <span class="tok-type">u32</span>);</span> <span class="line" id="L73"></span> <span class="line" id="L74"><span class="tok-comment">/// SHA-224</span></span> <span class="line" id="L75"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Sha224 = Sha2x32(Sha224Params);</span> <span class="line" id="L76"></span> <span class="line" id="L77"><span class="tok-comment">/// SHA-256</span></span> <span class="line" id="L78"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Sha256 = Sha2x32(Sha256Params);</span> <span class="line" id="L79"></span> <span class="line" id="L80"><span class="tok-kw">fn</span> <span class="tok-fn">Sha2x32</span>(<span class="tok-kw">comptime</span> params: Sha2Params32) <span class="tok-type">type</span> {</span> <span class="line" id="L81"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L82"> <span class="tok-kw">const</span> Self = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L83"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> block_length = <span class="tok-number">64</span>;</span> <span class="line" id="L84"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> digest_length = params.digest_bits / <span class="tok-number">8</span>;</span> <span class="line" id="L85"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Options = <span class="tok-kw">struct</span> {};</span> <span class="line" id="L86"></span> <span class="line" id="L87"> s: [<span class="tok-number">8</span>]<span class="tok-type">u32</span> <span class="tok-kw">align</span>(<span class="tok-number">16</span>),</span> <span class="line" id="L88"> <span class="tok-comment">// Streaming Cache</span> </span> <span class="line" id="L89"> buf: [<span class="tok-number">64</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>,</span> <span class="line" id="L90"> buf_len: <span class="tok-type">u8</span> = <span class="tok-number">0</span>,</span> <span class="line" id="L91"> total_len: <span class="tok-type">u64</span> = <span class="tok-number">0</span>,</span> <span class="line" id="L92"></span> <span class="line" id="L93"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">init</span>(options: Options) Self {</span> <span class="line" id="L94"> _ = options;</span> <span class="line" id="L95"> <span class="tok-kw">return</span> Self{</span> <span class="line" id="L96"> .s = [_]<span class="tok-type">u32</span>{</span> <span class="line" id="L97"> params.iv0,</span> <span class="line" id="L98"> params.iv1,</span> <span class="line" id="L99"> params.iv2,</span> <span class="line" id="L100"> params.iv3,</span> <span class="line" id="L101"> params.iv4,</span> <span class="line" id="L102"> params.iv5,</span> <span class="line" id="L103"> params.iv6,</span> <span class="line" id="L104"> params.iv7,</span> <span class="line" id="L105"> },</span> <span class="line" id="L106"> };</span> <span class="line" id="L107"> }</span> <span class="line" id="L108"></span> <span class="line" id="L109"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">hash</span>(b: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, out: [digest_length]<span class="tok-type">u8</span>, options: Options) <span class="tok-type">void</span> {</span> <span class="line" id="L110"> <span class="tok-kw">var</span> d = Self.init(options);</span> <span class="line" id="L111"> d.update(b);</span> <span class="line" id="L112"> d.final(out);</span> <span class="line" id="L113"> }</span> <span class="line" id="L114"></span> <span class="line" id="L115"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">update</span>(d: Self, b: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L116"> <span class="tok-kw">var</span> off: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L117"></span> <span class="line" id="L118"> <span class="tok-comment">// Partial buffer exists from previous update. Copy into buffer then hash.</span> </span> <span class="line" id="L119"> <span class="tok-kw">if</span> (d.buf_len != <span class="tok-number">0</span> <span class="tok-kw">and</span> d.buf_len + b.len >= <span class="tok-number">64</span>) {</span> <span class="line" id="L120"> off += <span class="tok-number">64</span> - d.buf_len;</span> <span class="line" id="L121"> <span class="tok-builtin">@memcpy</span>(d.buf[d.buf_len..][<span class="tok-number">0</span>..off], b[<span class="tok-number">0</span>..off]);</span> <span class="line" id="L122"></span> <span class="line" id="L123"> d.round(&d.buf);</span> <span class="line" id="L124"> d.buf_len = <span class="tok-number">0</span>;</span> <span class="line" id="L125"> }</span> <span class="line" id="L126"></span> <span class="line" id="L127"> <span class="tok-comment">// Full middle blocks.</span> </span> <span class="line" id="L128"> <span class="tok-kw">while</span> (off + <span class="tok-number">64</span> <= b.len) : (off += <span class="tok-number">64</span>) {</span> <span class="line" id="L129"> d.round(b[off..][<span class="tok-number">0</span>..<span class="tok-number">64</span>]);</span> <span class="line" id="L130"> }</span> <span class="line" id="L131"></span> <span class="line" id="L132"> <span class="tok-comment">// Copy any remainder for next pass.</span> </span> <span class="line" id="L133"> <span class="tok-kw">const</span> b_slice = b[off..];</span> <span class="line" id="L134"> <span class="tok-builtin">@memcpy</span>(d.buf[d.buf_len..][<span class="tok-number">0</span>..b_slice.len], b_slice);</span> <span class="line" id="L135"> d.buf_len += <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>(b[off..].len));</span> <span class="line" id="L136"></span> <span class="line" id="L137"> d.total_len += b.len;</span> <span class="line" id="L138"> }</span> <span class="line" id="L139"></span> <span class="line" id="L140"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">peek</span>(d: Self) [digest_length]<span class="tok-type">u8</span> {</span> <span class="line" id="L141"> <span class="tok-kw">var</span> copy = d;</span> <span class="line" id="L142"> <span class="tok-kw">return</span> copy.finalResult();</span> <span class="line" id="L143"> }</span> <span class="line" id="L144"></span> <span class="line" id="L145"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">final</span>(d: Self, out: [digest_length]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L146"> <span class="tok-comment">// The buffer here will never be completely full.</span> </span> <span class="line" id="L147"> <span class="tok-builtin">@memset</span>(d.buf[d.buf_len..], <span class="tok-number">0</span>);</span> <span class="line" id="L148"></span> <span class="line" id="L149"> <span class="tok-comment">// Append padding bits.</span> </span> <span class="line" id="L150"> d.buf[d.buf_len] = <span class="tok-number">0x80</span>;</span> <span class="line" id="L151"> d.buf_len += <span class="tok-number">1</span>;</span> <span class="line" id="L152"></span> <span class="line" id="L153"> <span class="tok-comment">// > 448 mod 512 so need to add an extra round to wrap around.</span> </span> <span class="line" id="L154"> <span class="tok-kw">if</span> (<span class="tok-number">64</span> - d.buf_len < <span class="tok-number">8</span>) {</span> <span class="line" id="L155"> d.round(&d.buf);</span> <span class="line" id="L156"> <span class="tok-builtin">@memset</span>(d.buf[<span class="tok-number">0</span>..], <span class="tok-number">0</span>);</span> <span class="line" id="L157"> }</span> <span class="line" id="L158"></span> <span class="line" id="L159"> <span class="tok-comment">// Append message length.</span> </span> <span class="line" id="L160"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">1</span>;</span> <span class="line" id="L161"> <span class="tok-kw">var</span> len = d.total_len >> <span class="tok-number">5</span>;</span> <span class="line" id="L162"> d.buf[<span class="tok-number">63</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>(d.total_len & <span class="tok-number">0x1f</span>)) << <span class="tok-number">3</span>;</span> <span class="line" id="L163"> <span class="tok-kw">while</span> (i < <span class="tok-number">8</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L164"> d.buf[<span class="tok-number">63</span> - i] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>(len & <span class="tok-number">0xff</span>));</span> <span class="line" id="L165"> len >>= <span class="tok-number">8</span>;</span> <span class="line" id="L166"> }</span> <span class="line" id="L167"></span> <span class="line" id="L168"> d.round(&d.buf);</span> <span class="line" id="L169"></span> <span class="line" id="L170"> <span class="tok-comment">// May truncate for possible 224 output</span> </span> <span class="line" id="L171"> <span class="tok-kw">const</span> rr = d.s[<span class="tok-number">0</span> .. params.digest_bits / <span class="tok-number">32</span>];</span> <span class="line" id="L172"></span> <span class="line" id="L173"> <span class="tok-kw">for</span> (rr, <span class="tok-number">0</span>..) \|s, j\| {</span> <span class="line" id="L174"> mem.writeIntBig(<span class="tok-type">u32</span>, out[<span class="tok-number">4</span> * j ..][<span class="tok-number">0</span>..<span class="tok-number">4</span>], s);</span> <span class="line" id="L175"> }</span> <span class="line" id="L176"> }</span> <span class="line" id="L177"></span> <span class="line" id="L178"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">finalResult</span>(d: Self) [digest_length]<span class="tok-type">u8</span> {</span> <span class="line" id="L179"> <span class="tok-kw">var</span> result: [digest_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L180"> d.final(&result);</span> <span class="line" id="L181"> <span class="tok-kw">return</span> result;</span> <span class="line" id="L182"> }</span> <span class="line" id="L183"></span> <span class="line" id="L184"> <span class="tok-kw">const</span> W = [<span class="tok-number">64</span>]<span class="tok-type">u32</span>{</span> <span class="line" id="L185"> <span class="tok-number">0x428A2F98</span>, <span class="tok-number">0x71374491</span>, <span class="tok-number">0xB5C0FBCF</span>, <span class="tok-number">0xE9B5DBA5</span>, <span class="tok-number">0x3956C25B</span>, <span class="tok-number">0x59F111F1</span>, <span class="tok-number">0x923F82A4</span>, <span class="tok-number">0xAB1C5ED5</span>,</span> <span class="line" id="L186"> <span class="tok-number">0xD807AA98</span>, <span class="tok-number">0x12835B01</span>, <span class="tok-number">0x243185BE</span>, <span class="tok-number">0x550C7DC3</span>, <span class="tok-number">0x72BE5D74</span>, <span class="tok-number">0x80DEB1FE</span>, <span class="tok-number">0x9BDC06A7</span>, <span class="tok-number">0xC19BF174</span>,</span> <span class="line" id="L187"> <span class="tok-number">0xE49B69C1</span>, <span class="tok-number">0xEFBE4786</span>, <span class="tok-number">0x0FC19DC6</span>, <span class="tok-number">0x240CA1CC</span>, <span class="tok-number">0x2DE92C6F</span>, <span class="tok-number">0x4A7484AA</span>, <span class="tok-number">0x5CB0A9DC</span>, <span class="tok-number">0x76F988DA</span>,</span> <span class="line" id="L188"> <span class="tok-number">0x983E5152</span>, <span class="tok-number">0xA831C66D</span>, <span class="tok-number">0xB00327C8</span>, <span class="tok-number">0xBF597FC7</span>, <span class="tok-number">0xC6E00BF3</span>, <span class="tok-number">0xD5A79147</span>, <span class="tok-number">0x06CA6351</span>, <span class="tok-number">0x14292967</span>,</span> <span class="line" id="L189"> <span class="tok-number">0x27B70A85</span>, <span class="tok-number">0x2E1B2138</span>, <span class="tok-number">0x4D2C6DFC</span>, <span class="tok-number">0x53380D13</span>, <span class="tok-number">0x650A7354</span>, <span class="tok-number">0x766A0ABB</span>, <span class="tok-number">0x81C2C92E</span>, <span class="tok-number">0x92722C85</span>,</span> <span class="line" id="L190"> <span class="tok-number">0xA2BFE8A1</span>, <span class="tok-number">0xA81A664B</span>, <span class="tok-number">0xC24B8B70</span>, <span class="tok-number">0xC76C51A3</span>, <span class="tok-number">0xD192E819</span>, <span class="tok-number">0xD6990624</span>, <span class="tok-number">0xF40E3585</span>, <span class="tok-number">0x106AA070</span>,</span> <span class="line" id="L191"> <span class="tok-number">0x19A4C116</span>, <span class="tok-number">0x1E376C08</span>, <span class="tok-number">0x2748774C</span>, <span class="tok-number">0x34B0BCB5</span>, <span class="tok-number">0x391C0CB3</span>, <span class="tok-number">0x4ED8AA4A</span>, <span class="tok-number">0x5B9CCA4F</span>, <span class="tok-number">0x682E6FF3</span>,</span> <span class="line" id="L192"> <span class="tok-number">0x748F82EE</span>, <span class="tok-number">0x78A5636F</span>, <span class="tok-number">0x84C87814</span>, <span class="tok-number">0x8CC70208</span>, <span class="tok-number">0x90BEFFFA</span>, <span class="tok-number">0xA4506CEB</span>, <span class="tok-number">0xBEF9A3F7</span>, <span class="tok-number">0xC67178F2</span>,</span> <span class="line" id="L193"> };</span> <span class="line" id="L194"></span> <span class="line" id="L195"> <span class="tok-kw">fn</span> <span class="tok-fn">round</span>(d: Self, b: <span class="tok-kw">const</span> [<span class="tok-number">64</span>]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L196"> <span class="tok-kw">var</span> s: [<span class="tok-number">64</span>]<span class="tok-type">u32</span> <span class="tok-kw">align</span>(<span class="tok-number">16</span>) = <span class="tok-null">undefined</span>;</span> <span class="line" id="L197"> <span class="tok-kw">for</span> (<span class="tok-builtin">@as</span>(<span class="tok-kw">align</span>(<span class="tok-number">1</span>) <span class="tok-kw">const</span> [<span class="tok-number">16</span>]<span class="tok-type">u32</span>, <span class="tok-builtin">@ptrCast</span>(b)), <span class="tok-number">0</span>..) \|elem, i\| {</span> <span class="line" id="L198"> s[i] = mem.readIntBig(<span class="tok-type">u32</span>, mem.asBytes(elem));</span> <span class="line" id="L199"> }</span> <span class="line" id="L200"></span> <span class="line" id="L201"> <span class="tok-kw">if</span> (!<span class="tok-builtin">@inComptime</span>()) {</span> <span class="line" id="L202"> <span class="tok-kw">switch</span> (builtin.cpu.arch) {</span> <span class="line" id="L203"> .aarch64 => <span class="tok-kw">if</span> (builtin.zig_backend != .stage2_c <span class="tok-kw">and</span> <span class="tok-kw">comptime</span> std.Target.aarch64.featureSetHas(builtin.cpu.features, .sha2)) {</span> <span class="line" id="L204"> <span class="tok-kw">var</span> x: v4u32 = d.s[<span class="tok-number">0</span>..<span class="tok-number">4</span>].;</span> <span class="line" id="L205"> <span class="tok-kw">var</span> y: v4u32 = d.s[<span class="tok-number">4</span>..<span class="tok-number">8</span>].;</span> <span class="line" id="L206"> <span class="tok-kw">const</span> s_v = <span class="tok-builtin">@as</span>([<span class="tok-number">16</span>]v4u32, <span class="tok-builtin">@ptrCast</span>(&s));</span> <span class="line" id="L207"></span> <span class="line" id="L208"> <span class="tok-kw">comptime</span> <span class="tok-kw">var</span> k: <span class="tok-type">u8</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L209"> <span class="tok-kw">inline</span> <span class="tok-kw">while</span> (k < <span class="tok-number">16</span>) : (k += <span class="tok-number">1</span>) {</span> <span class="line" id="L210"> <span class="tok-kw">if</span> (k > <span class="tok-number">3</span>) {</span> <span class="line" id="L211"> s_v[k] = <span class="tok-kw">asm</span> (</span> <span class="line" id="L212"> <span class="tok-str">\\sha256su0.4s %[w0_3], %[w4_7]</span></span> <span class="line" id="L213"> <span class="tok-str">\\sha256su1.4s %[w0_3], %[w8_11], %[w12_15]</span></span> <span class="line" id="L214"> : [w0_3] <span class="tok-str">"=w"</span> (-> v4u32),</span> <span class="line" id="L215"> : [_] <span class="tok-str">"0"</span> (s_v[k - <span class="tok-number">4</span>]),</span> <span class="line" id="L216"> [w4_7] <span class="tok-str">"w"</span> (s_v[k - <span class="tok-number">3</span>]),</span> <span class="line" id="L217"> [w8_11] <span class="tok-str">"w"</span> (s_v[k - <span class="tok-number">2</span>]),</span> <span class="line" id="L218"> [w12_15] <span class="tok-str">"w"</span> (s_v[k - <span class="tok-number">1</span>]),</span> <span class="line" id="L219"> );</span> <span class="line" id="L220"> }</span> <span class="line" id="L221"></span> <span class="line" id="L222"> <span class="tok-kw">const</span> w: v4u32 = s_v[k] +% <span class="tok-builtin">@as</span>(v4u32, W[<span class="tok-number">4</span> * k ..][<span class="tok-number">0</span>..<span class="tok-number">4</span>].);</span> <span class="line" id="L223"> <span class="tok-kw">asm</span> <span class="tok-kw">volatile</span> (</span> <span class="line" id="L224"> <span class="tok-str">\\mov.4s v0, %[x]</span></span> <span class="line" id="L225"> <span class="tok-str">\\sha256h.4s %[x], %[y], %[w]</span></span> <span class="line" id="L226"> <span class="tok-str">\\sha256h2.4s %[y], v0, %[w]</span></span> <span class="line" id="L227"> : [x] <span class="tok-str">"=w"</span> (x),</span> <span class="line" id="L228"> [y] <span class="tok-str">"=w"</span> (y),</span> <span class="line" id="L229"> : [_] <span class="tok-str">"0"</span> (x),</span> <span class="line" id="L230"> [_] <span class="tok-str">"1"</span> (y),</span> <span class="line" id="L231"> [w] <span class="tok-str">"w"</span> (w),</span> <span class="line" id="L232"> : <span class="tok-str">"v0"</span></span> <span class="line" id="L233"> );</span> <span class="line" id="L234"> }</span> <span class="line" id="L235"></span> <span class="line" id="L236"> d.s[<span class="tok-number">0</span>..<span class="tok-number">4</span>]. = x +% <span class="tok-builtin">@as</span>(v4u32, d.s[<span class="tok-number">0</span>..<span class="tok-number">4</span>].);</span> <span class="line" id="L237"> d.s[<span class="tok-number">4</span>..<span class="tok-number">8</span>]. = y +% <span class="tok-builtin">@as</span>(v4u32, d.s[<span class="tok-number">4</span>..<span class="tok-number">8</span>].);</span> <span class="line" id="L238"> <span class="tok-kw">return</span>;</span> <span class="line" id="L239"> },</span> <span class="line" id="L240"> <span class="tok-comment">// C backend doesn't currently support passing vectors to inline asm.</span> </span> <span class="line" id="L241"> .x86_64 => <span class="tok-kw">if</span> (builtin.zig_backend != .stage2_c <span class="tok-kw">and</span> <span class="tok-kw">comptime</span> std.Target.x86.featureSetHasAll(builtin.cpu.features, .{ .sha, .avx2 })) {</span> <span class="line" id="L242"> <span class="tok-kw">var</span> x: v4u32 = [_]<span class="tok-type">u32</span>{ d.s[<span class="tok-number">5</span>], d.s[<span class="tok-number">4</span>], d.s[<span class="tok-number">1</span>], d.s[<span class="tok-number">0</span>] };</span> <span class="line" id="L243"> <span class="tok-kw">var</span> y: v4u32 = [_]<span class="tok-type">u32</span>{ d.s[<span class="tok-number">7</span>], d.s[<span class="tok-number">6</span>], d.s[<span class="tok-number">3</span>], d.s[<span class="tok-number">2</span>] };</span> <span class="line" id="L244"> <span class="tok-kw">const</span> s_v = <span class="tok-builtin">@as</span>([<span class="tok-number">16</span>]v4u32, <span class="tok-builtin">@ptrCast</span>(&s));</span> <span class="line" id="L245"></span> <span class="line" id="L246"> <span class="tok-kw">comptime</span> <span class="tok-kw">var</span> k: <span class="tok-type">u8</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L247"> <span class="tok-kw">inline</span> <span class="tok-kw">while</span> (k < <span class="tok-number">16</span>) : (k += <span class="tok-number">1</span>) {</span> <span class="line" id="L248"> <span class="tok-kw">if</span> (k < <span class="tok-number">12</span>) {</span> <span class="line" id="L249"> <span class="tok-kw">var</span> tmp = s_v[k];</span> <span class="line" id="L250"> s_v[k + <span class="tok-number">4</span>] = <span class="tok-kw">asm</span> (</span> <span class="line" id="L251"> <span class="tok-str">\\ sha256msg1 %[w4_7], %[tmp]</span></span> <span class="line" id="L252"> <span class="tok-str">\\ vpalignr $0x4, %[w8_11], %[w12_15], %[result]</span></span> <span class="line" id="L253"> <span class="tok-str">\\ paddd %[tmp], %[result]</span></span> <span class="line" id="L254"> <span class="tok-str">\\ sha256msg2 %[w12_15], %[result]</span></span> <span class="line" id="L255"> : [tmp] <span class="tok-str">"=&x"</span> (tmp),</span> <span class="line" id="L256"> [result] <span class="tok-str">"=&x"</span> (-> v4u32),</span> <span class="line" id="L257"> : [_] <span class="tok-str">"0"</span> (tmp),</span> <span class="line" id="L258"> [w4_7] <span class="tok-str">"x"</span> (s_v[k + <span class="tok-number">1</span>]),</span> <span class="line" id="L259"> [w8_11] <span class="tok-str">"x"</span> (s_v[k + <span class="tok-number">2</span>]),</span> <span class="line" id="L260"> [w12_15] <span class="tok-str">"x"</span> (s_v[k + <span class="tok-number">3</span>]),</span> <span class="line" id="L261"> );</span> <span class="line" id="L262"> }</span> <span class="line" id="L263"></span> <span class="line" id="L264"> <span class="tok-kw">const</span> w: v4u32 = s_v[k] +% <span class="tok-builtin">@as</span>(v4u32, W[<span class="tok-number">4</span> * k ..][<span class="tok-number">0</span>..<span class="tok-number">4</span>].);</span> <span class="line" id="L265"> y = <span class="tok-kw">asm</span> (<span class="tok-str">"sha256rnds2 %[x], %[y]"</span></span> <span class="line" id="L266"> : [y] <span class="tok-str">"=x"</span> (-> v4u32),</span> <span class="line" id="L267"> : [_] <span class="tok-str">"0"</span> (y),</span> <span class="line" id="L268"> [x] <span class="tok-str">"x"</span> (x),</span> <span class="line" id="L269"> [_] <span class="tok-str">"{xmm0}"</span> (w),</span> <span class="line" id="L270"> );</span> <span class="line" id="L271"></span> <span class="line" id="L272"> x = <span class="tok-kw">asm</span> (<span class="tok-str">"sha256rnds2 %[y], %[x]"</span></span> <span class="line" id="L273"> : [x] <span class="tok-str">"=x"</span> (-> v4u32),</span> <span class="line" id="L274"> : [_] <span class="tok-str">"0"</span> (x),</span> <span class="line" id="L275"> [y] <span class="tok-str">"x"</span> (y),</span> <span class="line" id="L276"> [_] <span class="tok-str">"{xmm0}"</span> (<span class="tok-builtin">@as</span>(v4u32, <span class="tok-builtin">@bitCast</span>(<span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, <span class="tok-builtin">@bitCast</span>(w)) >> <span class="tok-number">64</span>))),</span> <span class="line" id="L277"> );</span> <span class="line" id="L278"> }</span> <span class="line" id="L279"></span> <span class="line" id="L280"> d.s[<span class="tok-number">0</span>] +%= x[<span class="tok-number">3</span>];</span> <span class="line" id="L281"> d.s[<span class="tok-number">1</span>] +%= x[<span class="tok-number">2</span>];</span> <span class="line" id="L282"> d.s[<span class="tok-number">4</span>] +%= x[<span class="tok-number">1</span>];</span> <span class="line" id="L283"> d.s[<span class="tok-number">5</span>] +%= x[<span class="tok-number">0</span>];</span> <span class="line" id="L284"> d.s[<span class="tok-number">2</span>] +%= y[<span class="tok-number">3</span>];</span> <span class="line" id="L285"> d.s[<span class="tok-number">3</span>] +%= y[<span class="tok-number">2</span>];</span> <span class="line" id="L286"> d.s[<span class="tok-number">6</span>] +%= y[<span class="tok-number">1</span>];</span> <span class="line" id="L287"> d.s[<span class="tok-number">7</span>] +%= y[<span class="tok-number">0</span>];</span> <span class="line" id="L288"> <span class="tok-kw">return</span>;</span> <span class="line" id="L289"> },</span> <span class="line" id="L290"> <span class="tok-kw">else</span> => {},</span> <span class="line" id="L291"> }</span> <span class="line" id="L292"> }</span> <span class="line" id="L293"></span> <span class="line" id="L294"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">16</span>;</span> <span class="line" id="L295"> <span class="tok-kw">while</span> (i < <span class="tok-number">64</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L296"> s[i] = s[i - <span class="tok-number">16</span>] +% s[i - <span class="tok-number">7</span>] +% (math.rotr(<span class="tok-type">u32</span>, s[i - <span class="tok-number">15</span>], <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-number">7</span>)) ^ math.rotr(<span class="tok-type">u32</span>, s[i - <span class="tok-number">15</span>], <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-number">18</span>)) ^ (s[i - <span class="tok-number">15</span>] >> <span class="tok-number">3</span>)) +% (math.rotr(<span class="tok-type">u32</span>, s[i - <span class="tok-number">2</span>], <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-number">17</span>)) ^ math.rotr(<span class="tok-type">u32</span>, s[i - <span class="tok-number">2</span>], <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-number">19</span>)) ^ (s[i - <span class="tok-number">2</span>] >> <span class="tok-number">10</span>));</span> <span class="line" id="L297"> }</span> <span class="line" id="L298"></span> <span class="line" id="L299"> <span class="tok-kw">var</span> v: [<span class="tok-number">8</span>]<span class="tok-type">u32</span> = [_]<span class="tok-type">u32</span>{</span> <span class="line" id="L300"> d.s[<span class="tok-number">0</span>],</span> <span class="line" id="L301"> d.s[<span class="tok-number">1</span>],</span> <span class="line" id="L302"> d.s[<span class="tok-number">2</span>],</span> <span class="line" id="L303"> d.s[<span class="tok-number">3</span>],</span> <span class="line" id="L304"> d.s[<span class="tok-number">4</span>],</span> <span class="line" id="L305"> d.s[<span class="tok-number">5</span>],</span> <span class="line" id="L306"> d.s[<span class="tok-number">6</span>],</span> <span class="line" id="L307"> d.s[<span class="tok-number">7</span>],</span> <span class="line" id="L308"> };</span> <span class="line" id="L309"></span> <span class="line" id="L310"> <span class="tok-kw">const</span> round0 = <span class="tok-kw">comptime</span> [_]RoundParam256{</span> <span class="line" id="L311"> roundParam256(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>),</span> <span class="line" id="L312"> roundParam256(<span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">1</span>),</span> <span class="line" id="L313"> roundParam256(<span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">2</span>),</span> <span class="line" id="L314"> roundParam256(<span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">3</span>),</span> <span class="line" id="L315"> roundParam256(<span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>),</span> <span class="line" id="L316"> roundParam256(<span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">5</span>),</span> <span class="line" id="L317"> roundParam256(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">6</span>),</span> <span class="line" id="L318"> roundParam256(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">7</span>),</span> <span class="line" id="L319"> roundParam256(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">8</span>),</span> <span class="line" id="L320"> roundParam256(<span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">9</span>),</span> <span class="line" id="L321"> roundParam256(<span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">10</span>),</span> <span class="line" id="L322"> roundParam256(<span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">11</span>),</span> <span class="line" id="L323"> roundParam256(<span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">12</span>),</span> <span class="line" id="L324"> roundParam256(<span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">13</span>),</span> <span class="line" id="L325"> roundParam256(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">14</span>),</span> <span class="line" id="L326"> roundParam256(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">15</span>),</span> <span class="line" id="L327"> roundParam256(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">16</span>),</span> <span class="line" id="L328"> roundParam256(<span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">17</span>),</span> <span class="line" id="L329"> roundParam256(<span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">18</span>),</span> <span class="line" id="L330"> roundParam256(<span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">19</span>),</span> <span class="line" id="L331"> roundParam256(<span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">20</span>),</span> <span class="line" id="L332"> roundParam256(<span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">21</span>),</span> <span class="line" id="L333"> roundParam256(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">22</span>),</span> <span class="line" id="L334"> roundParam256(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">23</span>),</span> <span class="line" id="L335"> roundParam256(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">24</span>),</span> <span class="line" id="L336"> roundParam256(<span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">25</span>),</span> <span class="line" id="L337"> roundParam256(<span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">26</span>),</span> <span class="line" id="L338"> roundParam256(<span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">27</span>),</span> <span class="line" id="L339"> roundParam256(<span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">28</span>),</span> <span class="line" id="L340"> roundParam256(<span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">29</span>),</span> <span class="line" id="L341"> roundParam256(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">30</span>),</span> <span class="line" id="L342"> roundParam256(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">31</span>),</span> <span class="line" id="L343"> roundParam256(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">32</span>),</span> <span class="line" id="L344"> roundParam256(<span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">33</span>),</span> <span class="line" id="L345"> roundParam256(<span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">34</span>),</span> <span class="line" id="L346"> roundParam256(<span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">35</span>),</span> <span class="line" id="L347"> roundParam256(<span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">36</span>),</span> <span class="line" id="L348"> roundParam256(<span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">37</span>),</span> <span class="line" id="L349"> roundParam256(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">38</span>),</span> <span class="line" id="L350"> roundParam256(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">39</span>),</span> <span class="line" id="L351"> roundParam256(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">40</span>),</span> <span class="line" id="L352"> roundParam256(<span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">41</span>),</span> <span class="line" id="L353"> roundParam256(<span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">42</span>),</span> <span class="line" id="L354"> roundParam256(<span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">43</span>),</span> <span class="line" id="L355"> roundParam256(<span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">44</span>),</span> <span class="line" id="L356"> roundParam256(<span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">45</span>),</span> <span class="line" id="L357"> roundParam256(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">46</span>),</span> <span class="line" id="L358"> roundParam256(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">47</span>),</span> <span class="line" id="L359"> roundParam256(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">48</span>),</span> <span class="line" id="L360"> roundParam256(<span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">49</span>),</span> <span class="line" id="L361"> roundParam256(<span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">50</span>),</span> <span class="line" id="L362"> roundParam256(<span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">51</span>),</span> <span class="line" id="L363"> roundParam256(<span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">52</span>),</span> <span class="line" id="L364"> roundParam256(<span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">53</span>),</span> <span class="line" id="L365"> roundParam256(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">54</span>),</span> <span class="line" id="L366"> roundParam256(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">55</span>),</span> <span class="line" id="L367"> roundParam256(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">56</span>),</span> <span class="line" id="L368"> roundParam256(<span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">57</span>),</span> <span class="line" id="L369"> roundParam256(<span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">58</span>),</span> <span class="line" id="L370"> roundParam256(<span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">59</span>),</span> <span class="line" id="L371"> roundParam256(<span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">60</span>),</span> <span class="line" id="L372"> roundParam256(<span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">61</span>),</span> <span class="line" id="L373"> roundParam256(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">62</span>),</span> <span class="line" id="L374"> roundParam256(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">63</span>),</span> <span class="line" id="L375"> };</span> <span class="line" id="L376"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (round0) \|r\| {</span> <span class="line" id="L377"> v[r.h] = v[r.h] +% (math.rotr(<span class="tok-type">u32</span>, v[r.e], <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-number">6</span>)) ^ math.rotr(<span class="tok-type">u32</span>, v[r.e], <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-number">11</span>)) ^ math.rotr(<span class="tok-type">u32</span>, v[r.e], <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-number">25</span>))) +% (v[r.g] ^ (v[r.e] & (v[r.f] ^ v[r.g]))) +% W[r.i] +% s[r.i];</span> <span class="line" id="L378"></span> <span class="line" id="L379"> v[r.d] = v[r.d] +% v[r.h];</span> <span class="line" id="L380"></span> <span class="line" id="L381"> v[r.h] = v[r.h] +% (math.rotr(<span class="tok-type">u32</span>, v[r.a], <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-number">2</span>)) ^ math.rotr(<span class="tok-type">u32</span>, v[r.a], <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-number">13</span>)) ^ math.rotr(<span class="tok-type">u32</span>, v[r.a], <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-number">22</span>))) +% ((v[r.a] & (v[r.b] \| v[r.c])) \| (v[r.b] & v[r.c]));</span> <span class="line" id="L382"> }</span> <span class="line" id="L383"></span> <span class="line" id="L384"> d.s[<span class="tok-number">0</span>] +%= v[<span class="tok-number">0</span>];</span> <span class="line" id="L385"> d.s[<span class="tok-number">1</span>] +%= v[<span class="tok-number">1</span>];</span> <span class="line" id="L386"> d.s[<span class="tok-number">2</span>] +%= v[<span class="tok-number">2</span>];</span> <span class="line" id="L387"> d.s[<span class="tok-number">3</span>] +%= v[<span class="tok-number">3</span>];</span> <span class="line" id="L388"> d.s[<span class="tok-number">4</span>] +%= v[<span class="tok-number">4</span>];</span> <span class="line" id="L389"> d.s[<span class="tok-number">5</span>] +%= v[<span class="tok-number">5</span>];</span> <span class="line" id="L390"> d.s[<span class="tok-number">6</span>] +%= v[<span class="tok-number">6</span>];</span> <span class="line" id="L391"> d.s[<span class="tok-number">7</span>] +%= v[<span class="tok-number">7</span>];</span> <span class="line" id="L392"> }</span> <span class="line" id="L393"></span> <span class="line" id="L394"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Error = <span class="tok-kw">error</span>{};</span> <span class="line" id="L395"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Writer = std.io.Writer(Self, Error, write);</span> <span class="line" id="L396"></span> <span class="line" id="L397"> <span class="tok-kw">fn</span> <span class="tok-fn">write</span>(self: Self, bytes: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) Error!<span class="tok-type">usize</span> {</span> <span class="line" id="L398"> self.update(bytes);</span> <span class="line" id="L399"> <span class="tok-kw">return</span> bytes.len;</span> <span class="line" id="L400"> }</span> <span class="line" id="L401"></span> <span class="line" id="L402"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">writer</span>(self: Self) Writer {</span> <span class="line" id="L403"> <span class="tok-kw">return</span> .{ .context = self };</span> <span class="line" id="L404"> }</span> <span class="line" id="L405"> };</span> <span class="line" id="L406">}</span> <span class="line" id="L407"></span> <span class="line" id="L408"><span class="tok-kw">test</span> <span class="tok-str">"sha224 single"</span> {</span> <span class="line" id="L409"> <span class="tok-kw">try</span> htest.assertEqualHash(Sha224, <span class="tok-str">"d14a028c2a3a2bc9476102bb288234c415a2b01f828ea62ac5b3e42f"</span>, <span class="tok-str">""</span>);</span> <span class="line" id="L410"> <span class="tok-kw">try</span> htest.assertEqualHash(Sha224, <span class="tok-str">"23097d223405d8228642a477bda255b32aadbce4bda0b3f7e36c9da7"</span>, <span class="tok-str">"abc"</span>);</span> <span class="line" id="L411"> <span class="tok-kw">try</span> htest.assertEqualHash(Sha224, <span class="tok-str">"c97ca9a559850ce97a04a96def6d99a9e0e0e2ab14e6b8df265fc0b3"</span>, <span class="tok-str">"abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmnhijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu"</span>);</span> <span class="line" id="L412">}</span> <span class="line" id="L413"></span> <span class="line" id="L414"><span class="tok-kw">test</span> <span class="tok-str">"sha224 streaming"</span> {</span> <span class="line" id="L415"> <span class="tok-kw">var</span> h = Sha224.init(.{});</span> <span class="line" id="L416"> <span class="tok-kw">var</span> out: [<span class="tok-number">28</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L417"></span> <span class="line" id="L418"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L419"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"d14a028c2a3a2bc9476102bb288234c415a2b01f828ea62ac5b3e42f"</span>, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L420"></span> <span class="line" id="L421"> h = Sha224.init(.{});</span> <span class="line" id="L422"> h.update(<span class="tok-str">"abc"</span>);</span> <span class="line" id="L423"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L424"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"23097d223405d8228642a477bda255b32aadbce4bda0b3f7e36c9da7"</span>, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L425"></span> <span class="line" id="L426"> h = Sha224.init(.{});</span> <span class="line" id="L427"> h.update(<span class="tok-str">"a"</span>);</span> <span class="line" id="L428"> h.update(<span class="tok-str">"b"</span>);</span> <span class="line" id="L429"> h.update(<span class="tok-str">"c"</span>);</span> <span class="line" id="L430"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L431"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"23097d223405d8228642a477bda255b32aadbce4bda0b3f7e36c9da7"</span>, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L432">}</span> <span class="line" id="L433"></span> <span class="line" id="L434"><span class="tok-kw">test</span> <span class="tok-str">"sha256 single"</span> {</span> <span class="line" id="L435"> <span class="tok-kw">try</span> htest.assertEqualHash(Sha256, <span class="tok-str">"e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"</span>, <span class="tok-str">""</span>);</span> <span class="line" id="L436"> <span class="tok-kw">try</span> htest.assertEqualHash(Sha256, <span class="tok-str">"ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad"</span>, <span class="tok-str">"abc"</span>);</span> <span class="line" id="L437"> <span class="tok-kw">try</span> htest.assertEqualHash(Sha256, <span class="tok-str">"cf5b16a778af8380036ce59e7b0492370b249b11e8f07a51afac45037afee9d1"</span>, <span class="tok-str">"abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmnhijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu"</span>);</span> <span class="line" id="L438">}</span> <span class="line" id="L439"></span> <span class="line" id="L440"><span class="tok-kw">test</span> <span class="tok-str">"sha256 streaming"</span> {</span> <span class="line" id="L441"> <span class="tok-kw">var</span> h = Sha256.init(.{});</span> <span class="line" id="L442"> <span class="tok-kw">var</span> out: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L443"></span> <span class="line" id="L444"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L445"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"</span>, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L446"></span> <span class="line" id="L447"> h = Sha256.init(.{});</span> <span class="line" id="L448"> h.update(<span class="tok-str">"abc"</span>);</span> <span class="line" id="L449"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L450"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad"</span>, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L451"></span> <span class="line" id="L452"> h = Sha256.init(.{});</span> <span class="line" id="L453"> h.update(<span class="tok-str">"a"</span>);</span> <span class="line" id="L454"> h.update(<span class="tok-str">"b"</span>);</span> <span class="line" id="L455"> h.update(<span class="tok-str">"c"</span>);</span> <span class="line" id="L456"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L457"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad"</span>, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L458">}</span> <span class="line" id="L459"></span> <span class="line" id="L460"><span class="tok-kw">test</span> <span class="tok-str">"sha256 aligned final"</span> {</span> <span class="line" id="L461"> <span class="tok-kw">var</span> block = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} ** Sha256.block_length;</span> <span class="line" id="L462"> <span class="tok-kw">var</span> out: [Sha256.digest_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L463"></span> <span class="line" id="L464"> <span class="tok-kw">var</span> h = Sha256.init(.{});</span> <span class="line" id="L465"> h.update(&block);</span> <span class="line" id="L466"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L467">}</span> <span class="line" id="L468"></span> <span class="line" id="L469"><span class="tok-comment">/////////////////////</span> </span> <span class="line" id="L470"><span class="tok-comment">// Sha384 + Sha512</span> </span> <span class="line" id="L471"></span> <span class="line" id="L472"><span class="tok-kw">const</span> RoundParam512 = <span class="tok-kw">struct</span> {</span> <span class="line" id="L473"> a: <span class="tok-type">usize</span>,</span> <span class="line" id="L474"> b: <span class="tok-type">usize</span>,</span> <span class="line" id="L475"> c: <span class="tok-type">usize</span>,</span> <span class="line" id="L476"> d: <span class="tok-type">usize</span>,</span> <span class="line" id="L477"> e: <span class="tok-type">usize</span>,</span> <span class="line" id="L478"> f: <span class="tok-type">usize</span>,</span> <span class="line" id="L479"> g: <span class="tok-type">usize</span>,</span> <span class="line" id="L480"> h: <span class="tok-type">usize</span>,</span> <span class="line" id="L481"> i: <span class="tok-type">usize</span>,</span> <span class="line" id="L482"> k: <span class="tok-type">u64</span>,</span> <span class="line" id="L483">};</span> <span class="line" id="L484"></span> <span class="line" id="L485"><span class="tok-kw">fn</span> <span class="tok-fn">roundParam512</span>(a: <span class="tok-type">usize</span>, b: <span class="tok-type">usize</span>, c: <span class="tok-type">usize</span>, d: <span class="tok-type">usize</span>, e: <span class="tok-type">usize</span>, f: <span class="tok-type">usize</span>, g: <span class="tok-type">usize</span>, h: <span class="tok-type">usize</span>, i: <span class="tok-type">usize</span>, k: <span class="tok-type">u64</span>) RoundParam512 {</span> <span class="line" id="L486"> <span class="tok-kw">return</span> RoundParam512{</span> <span class="line" id="L487"> .a = a,</span> <span class="line" id="L488"> .b = b,</span> <span class="line" id="L489"> .c = c,</span> <span class="line" id="L490"> .d = d,</span> <span class="line" id="L491"> .e = e,</span> <span class="line" id="L492"> .f = f,</span> <span class="line" id="L493"> .g = g,</span> <span class="line" id="L494"> .h = h,</span> <span class="line" id="L495"> .i = i,</span> <span class="line" id="L496"> .k = k,</span> <span class="line" id="L497"> };</span> <span class="line" id="L498">}</span> <span class="line" id="L499"></span> <span class="line" id="L500"><span class="tok-kw">const</span> Sha2Params64 = <span class="tok-kw">struct</span> {</span> <span class="line" id="L501"> iv0: <span class="tok-type">u64</span>,</span> <span class="line" id="L502"> iv1: <span class="tok-type">u64</span>,</span> <span class="line" id="L503"> iv2: <span class="tok-type">u64</span>,</span> <span class="line" id="L504"> iv3: <span class="tok-type">u64</span>,</span> <span class="line" id="L505"> iv4: <span class="tok-type">u64</span>,</span> <span class="line" id="L506"> iv5: <span class="tok-type">u64</span>,</span> <span class="line" id="L507"> iv6: <span class="tok-type">u64</span>,</span> <span class="line" id="L508"> iv7: <span class="tok-type">u64</span>,</span> <span class="line" id="L509"> digest_bits: <span class="tok-type">usize</span>,</span> <span class="line" id="L510">};</span> <span class="line" id="L511"></span> <span class="line" id="L512"><span class="tok-kw">const</span> Sha384Params = Sha2Params64{</span> <span class="line" id="L513"> .iv0 = <span class="tok-number">0xCBBB9D5DC1059ED8</span>,</span> <span class="line" id="L514"> .iv1 = <span class="tok-number">0x629A292A367CD507</span>,</span> <span class="line" id="L515"> .iv2 = <span class="tok-number">0x9159015A3070DD17</span>,</span> <span class="line" id="L516"> .iv3 = <span class="tok-number">0x152FECD8F70E5939</span>,</span> <span class="line" id="L517"> .iv4 = <span class="tok-number">0x67332667FFC00B31</span>,</span> <span class="line" id="L518"> .iv5 = <span class="tok-number">0x8EB44A8768581511</span>,</span> <span class="line" id="L519"> .iv6 = <span class="tok-number">0xDB0C2E0D64F98FA7</span>,</span> <span class="line" id="L520"> .iv7 = <span class="tok-number">0x47B5481DBEFA4FA4</span>,</span> <span class="line" id="L521"> .digest_bits = <span class="tok-number">384</span>,</span> <span class="line" id="L522">};</span> <span class="line" id="L523"></span> <span class="line" id="L524"><span class="tok-kw">const</span> Sha512Params = Sha2Params64{</span> <span class="line" id="L525"> .iv0 = <span class="tok-number">0x6A09E667F3BCC908</span>,</span> <span class="line" id="L526"> .iv1 = <span class="tok-number">0xBB67AE8584CAA73B</span>,</span> <span class="line" id="L527"> .iv2 = <span class="tok-number">0x3C6EF372FE94F82B</span>,</span> <span class="line" id="L528"> .iv3 = <span class="tok-number">0xA54FF53A5F1D36F1</span>,</span> <span class="line" id="L529"> .iv4 = <span class="tok-number">0x510E527FADE682D1</span>,</span> <span class="line" id="L530"> .iv5 = <span class="tok-number">0x9B05688C2B3E6C1F</span>,</span> <span class="line" id="L531"> .iv6 = <span class="tok-number">0x1F83D9ABFB41BD6B</span>,</span> <span class="line" id="L532"> .iv7 = <span class="tok-number">0x5BE0CD19137E2179</span>,</span> <span class="line" id="L533"> .digest_bits = <span class="tok-number">512</span>,</span> <span class="line" id="L534">};</span> <span class="line" id="L535"></span> <span class="line" id="L536"><span class="tok-kw">const</span> Sha512256Params = Sha2Params64{</span> <span class="line" id="L537"> .iv0 = <span class="tok-number">0x22312194FC2BF72C</span>,</span> <span class="line" id="L538"> .iv1 = <span class="tok-number">0x9F555FA3C84C64C2</span>,</span> <span class="line" id="L539"> .iv2 = <span class="tok-number">0x2393B86B6F53B151</span>,</span> <span class="line" id="L540"> .iv3 = <span class="tok-number">0x963877195940EABD</span>,</span> <span class="line" id="L541"> .iv4 = <span class="tok-number">0x96283EE2A88EFFE3</span>,</span> <span class="line" id="L542"> .iv5 = <span class="tok-number">0xBE5E1E2553863992</span>,</span> <span class="line" id="L543"> .iv6 = <span class="tok-number">0x2B0199FC2C85B8AA</span>,</span> <span class="line" id="L544"> .iv7 = <span class="tok-number">0x0EB72DDC81C52CA2</span>,</span> <span class="line" id="L545"> .digest_bits = <span class="tok-number">256</span>,</span> <span class="line" id="L546">};</span> <span class="line" id="L547"></span> <span class="line" id="L548"><span class="tok-kw">const</span> Sha512T256Params = Sha2Params64{</span> <span class="line" id="L549"> .iv0 = <span class="tok-number">0x6A09E667F3BCC908</span>,</span> <span class="line" id="L550"> .iv1 = <span class="tok-number">0xBB67AE8584CAA73B</span>,</span> <span class="line" id="L551"> .iv2 = <span class="tok-number">0x3C6EF372FE94F82B</span>,</span> <span class="line" id="L552"> .iv3 = <span class="tok-number">0xA54FF53A5F1D36F1</span>,</span> <span class="line" id="L553"> .iv4 = <span class="tok-number">0x510E527FADE682D1</span>,</span> <span class="line" id="L554"> .iv5 = <span class="tok-number">0x9B05688C2B3E6C1F</span>,</span> <span class="line" id="L555"> .iv6 = <span class="tok-number">0x1F83D9ABFB41BD6B</span>,</span> <span class="line" id="L556"> .iv7 = <span class="tok-number">0x5BE0CD19137E2179</span>,</span> <span class="line" id="L557"> .digest_bits = <span class="tok-number">256</span>,</span> <span class="line" id="L558">};</span> <span class="line" id="L559"></span> <span class="line" id="L560"><span class="tok-comment">/// SHA-384</span></span> <span class="line" id="L561"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Sha384 = Sha2x64(Sha384Params);</span> <span class="line" id="L562"></span> <span class="line" id="L563"><span class="tok-comment">/// SHA-512</span></span> <span class="line" id="L564"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Sha512 = Sha2x64(Sha512Params);</span> <span class="line" id="L565"></span> <span class="line" id="L566"><span class="tok-comment">/// SHA-512/256</span></span> <span class="line" id="L567"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Sha512256 = Sha2x64(Sha512256Params);</span> <span class="line" id="L568"></span> <span class="line" id="L569"><span class="tok-comment">/// Truncated SHA-512</span></span> <span class="line" id="L570"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Sha512T256 = Sha2x64(Sha512T256Params);</span> <span class="line" id="L571"></span> <span class="line" id="L572"><span class="tok-kw">fn</span> <span class="tok-fn">Sha2x64</span>(<span class="tok-kw">comptime</span> params: Sha2Params64) <span class="tok-type">type</span> {</span> <span class="line" id="L573"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L574"> <span class="tok-kw">const</span> Self = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L575"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> block_length = <span class="tok-number">128</span>;</span> <span class="line" id="L576"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> digest_length = params.digest_bits / <span class="tok-number">8</span>;</span> <span class="line" id="L577"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Options = <span class="tok-kw">struct</span> {};</span> <span class="line" id="L578"></span> <span class="line" id="L579"> s: [<span class="tok-number">8</span>]<span class="tok-type">u64</span>,</span> <span class="line" id="L580"> <span class="tok-comment">// Streaming Cache</span> </span> <span class="line" id="L581"> buf: [<span class="tok-number">128</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>,</span> <span class="line" id="L582"> buf_len: <span class="tok-type">u8</span> = <span class="tok-number">0</span>,</span> <span class="line" id="L583"> total_len: <span class="tok-type">u128</span> = <span class="tok-number">0</span>,</span> <span class="line" id="L584"></span> <span class="line" id="L585"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">init</span>(options: Options) Self {</span> <span class="line" id="L586"> _ = options;</span> <span class="line" id="L587"> <span class="tok-kw">return</span> Self{</span> <span class="line" id="L588"> .s = [_]<span class="tok-type">u64</span>{</span> <span class="line" id="L589"> params.iv0,</span> <span class="line" id="L590"> params.iv1,</span> <span class="line" id="L591"> params.iv2,</span> <span class="line" id="L592"> params.iv3,</span> <span class="line" id="L593"> params.iv4,</span> <span class="line" id="L594"> params.iv5,</span> <span class="line" id="L595"> params.iv6,</span> <span class="line" id="L596"> params.iv7,</span> <span class="line" id="L597"> },</span> <span class="line" id="L598"> };</span> <span class="line" id="L599"> }</span> <span class="line" id="L600"></span> <span class="line" id="L601"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">hash</span>(b: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, out: [digest_length]<span class="tok-type">u8</span>, options: Options) <span class="tok-type">void</span> {</span> <span class="line" id="L602"> <span class="tok-kw">var</span> d = Self.init(options);</span> <span class="line" id="L603"> d.update(b);</span> <span class="line" id="L604"> d.final(out);</span> <span class="line" id="L605"> }</span> <span class="line" id="L606"></span> <span class="line" id="L607"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">update</span>(d: Self, b: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L608"> <span class="tok-kw">var</span> off: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L609"></span> <span class="line" id="L610"> <span class="tok-comment">// Partial buffer exists from previous update. Copy into buffer then hash.</span> </span> <span class="line" id="L611"> <span class="tok-kw">if</span> (d.buf_len != <span class="tok-number">0</span> <span class="tok-kw">and</span> d.buf_len + b.len >= <span class="tok-number">128</span>) {</span> <span class="line" id="L612"> off += <span class="tok-number">128</span> - d.buf_len;</span> <span class="line" id="L613"> <span class="tok-builtin">@memcpy</span>(d.buf[d.buf_len..][<span class="tok-number">0</span>..off], b[<span class="tok-number">0</span>..off]);</span> <span class="line" id="L614"></span> <span class="line" id="L615"> d.round(&d.buf);</span> <span class="line" id="L616"> d.buf_len = <span class="tok-number">0</span>;</span> <span class="line" id="L617"> }</span> <span class="line" id="L618"></span> <span class="line" id="L619"> <span class="tok-comment">// Full middle blocks.</span> </span> <span class="line" id="L620"> <span class="tok-kw">while</span> (off + <span class="tok-number">128</span> <= b.len) : (off += <span class="tok-number">128</span>) {</span> <span class="line" id="L621"> d.round(b[off..][<span class="tok-number">0</span>..<span class="tok-number">128</span>]);</span> <span class="line" id="L622"> }</span> <span class="line" id="L623"></span> <span class="line" id="L624"> <span class="tok-comment">// Copy any remainder for next pass.</span> </span> <span class="line" id="L625"> <span class="tok-kw">const</span> b_slice = b[off..];</span> <span class="line" id="L626"> <span class="tok-builtin">@memcpy</span>(d.buf[d.buf_len..][<span class="tok-number">0</span>..b_slice.len], b_slice);</span> <span class="line" id="L627"> d.buf_len += <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>(b[off..].len));</span> <span class="line" id="L628"></span> <span class="line" id="L629"> d.total_len += b.len;</span> <span class="line" id="L630"> }</span> <span class="line" id="L631"></span> <span class="line" id="L632"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">peek</span>(d: Self) [digest_length]<span class="tok-type">u8</span> {</span> <span class="line" id="L633"> <span class="tok-kw">var</span> copy = d;</span> <span class="line" id="L634"> <span class="tok-kw">return</span> copy.finalResult();</span> <span class="line" id="L635"> }</span> <span class="line" id="L636"></span> <span class="line" id="L637"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">final</span>(d: Self, out: [digest_length]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L638"> <span class="tok-comment">// The buffer here will never be completely full.</span> </span> <span class="line" id="L639"> <span class="tok-builtin">@memset</span>(d.buf[d.buf_len..], <span class="tok-number">0</span>);</span> <span class="line" id="L640"></span> <span class="line" id="L641"> <span class="tok-comment">// Append padding bits.</span> </span> <span class="line" id="L642"> d.buf[d.buf_len] = <span class="tok-number">0x80</span>;</span> <span class="line" id="L643"> d.buf_len += <span class="tok-number">1</span>;</span> <span class="line" id="L644"></span> <span class="line" id="L645"> <span class="tok-comment">// > 896 mod 1024 so need to add an extra round to wrap around.</span> </span> <span class="line" id="L646"> <span class="tok-kw">if</span> (<span class="tok-number">128</span> - d.buf_len < <span class="tok-number">16</span>) {</span> <span class="line" id="L647"> d.round(d.buf[<span class="tok-number">0</span>..]);</span> <span class="line" id="L648"> <span class="tok-builtin">@memset</span>(d.buf[<span class="tok-number">0</span>..], <span class="tok-number">0</span>);</span> <span class="line" id="L649"> }</span> <span class="line" id="L650"></span> <span class="line" id="L651"> <span class="tok-comment">// Append message length.</span> </span> <span class="line" id="L652"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">1</span>;</span> <span class="line" id="L653"> <span class="tok-kw">var</span> len = d.total_len >> <span class="tok-number">5</span>;</span> <span class="line" id="L654"> d.buf[<span class="tok-number">127</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>(d.total_len & <span class="tok-number">0x1f</span>)) << <span class="tok-number">3</span>;</span> <span class="line" id="L655"> <span class="tok-kw">while</span> (i < <span class="tok-number">16</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L656"> d.buf[<span class="tok-number">127</span> - i] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>(len & <span class="tok-number">0xff</span>));</span> <span class="line" id="L657"> len >>= <span class="tok-number">8</span>;</span> <span class="line" id="L658"> }</span> <span class="line" id="L659"></span> <span class="line" id="L660"> d.round(d.buf[<span class="tok-number">0</span>..]);</span> <span class="line" id="L661"></span> <span class="line" id="L662"> <span class="tok-comment">// May truncate for possible 384 output</span> </span> <span class="line" id="L663"> <span class="tok-kw">const</span> rr = d.s[<span class="tok-number">0</span> .. params.digest_bits / <span class="tok-number">64</span>];</span> <span class="line" id="L664"></span> <span class="line" id="L665"> <span class="tok-kw">for</span> (rr, <span class="tok-number">0</span>..) \|s, j\| {</span> <span class="line" id="L666"> mem.writeIntBig(<span class="tok-type">u64</span>, out[<span class="tok-number">8</span> * j ..][<span class="tok-number">0</span>..<span class="tok-number">8</span>], s);</span> <span class="line" id="L667"> }</span> <span class="line" id="L668"> }</span> <span class="line" id="L669"></span> <span class="line" id="L670"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">finalResult</span>(d: Self) [digest_length]<span class="tok-type">u8</span> {</span> <span class="line" id="L671"> <span class="tok-kw">var</span> result: [digest_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L672"> d.final(&result);</span> <span class="line" id="L673"> <span class="tok-kw">return</span> result;</span> <span class="line" id="L674"> }</span> <span class="line" id="L675"></span> <span class="line" id="L676"> <span class="tok-kw">fn</span> <span class="tok-fn">round</span>(d: Self, b: <span class="tok-kw">const</span> [<span class="tok-number">128</span>]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L677"> <span class="tok-kw">var</span> s: [<span class="tok-number">80</span>]<span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L678"></span> <span class="line" id="L679"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L680"> <span class="tok-kw">while</span> (i < <span class="tok-number">16</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L681"> s[i] = mem.readIntBig(<span class="tok-type">u64</span>, b[i <span class="tok-number">8</span> ..][<span class="tok-number">0</span>..<span class="tok-number">8</span>]);</span> <span class="line" id="L682"> }</span> <span class="line" id="L683"> <span class="tok-kw">while</span> (i < <span class="tok-number">80</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L684"> s[i] = s[i - <span class="tok-number">16</span>] +% s[i - <span class="tok-number">7</span>] +%</span> <span class="line" id="L685"> (math.rotr(<span class="tok-type">u64</span>, s[i - <span class="tok-number">15</span>], <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">1</span>)) ^ math.rotr(<span class="tok-type">u64</span>, s[i - <span class="tok-number">15</span>], <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">8</span>)) ^ (s[i - <span class="tok-number">15</span>] >> <span class="tok-number">7</span>)) +%</span> <span class="line" id="L686"> (math.rotr(<span class="tok-type">u64</span>, s[i - <span class="tok-number">2</span>], <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">19</span>)) ^ math.rotr(<span class="tok-type">u64</span>, s[i - <span class="tok-number">2</span>], <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">61</span>)) ^ (s[i - <span class="tok-number">2</span>] >> <span class="tok-number">6</span>));</span> <span class="line" id="L687"> }</span> <span class="line" id="L688"></span> <span class="line" id="L689"> <span class="tok-kw">var</span> v: [<span class="tok-number">8</span>]<span class="tok-type">u64</span> = [_]<span class="tok-type">u64</span>{</span> <span class="line" id="L690"> d.s[<span class="tok-number">0</span>],</span> <span class="line" id="L691"> d.s[<span class="tok-number">1</span>],</span> <span class="line" id="L692"> d.s[<span class="tok-number">2</span>],</span> <span class="line" id="L693"> d.s[<span class="tok-number">3</span>],</span> <span class="line" id="L694"> d.s[<span class="tok-number">4</span>],</span> <span class="line" id="L695"> d.s[<span class="tok-number">5</span>],</span> <span class="line" id="L696"> d.s[<span class="tok-number">6</span>],</span> <span class="line" id="L697"> d.s[<span class="tok-number">7</span>],</span> <span class="line" id="L698"> };</span> <span class="line" id="L699"></span> <span class="line" id="L700"> <span class="tok-kw">const</span> round0 = <span class="tok-kw">comptime</span> [_]RoundParam512{</span> <span class="line" id="L701"> roundParam512(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">0x428A2F98D728AE22</span>),</span> <span class="line" id="L702"> roundParam512(<span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">1</span>, <span class="tok-number">0x7137449123EF65CD</span>),</span> <span class="line" id="L703"> roundParam512(<span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">2</span>, <span class="tok-number">0xB5C0FBCFEC4D3B2F</span>),</span> <span class="line" id="L704"> roundParam512(<span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">3</span>, <span class="tok-number">0xE9B5DBA58189DBBC</span>),</span> <span class="line" id="L705"> roundParam512(<span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0x3956C25BF348B538</span>),</span> <span class="line" id="L706"> roundParam512(<span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">5</span>, <span class="tok-number">0x59F111F1B605D019</span>),</span> <span class="line" id="L707"> roundParam512(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">6</span>, <span class="tok-number">0x923F82A4AF194F9B</span>),</span> <span class="line" id="L708"> roundParam512(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">7</span>, <span class="tok-number">0xAB1C5ED5DA6D8118</span>),</span> <span class="line" id="L709"> roundParam512(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">8</span>, <span class="tok-number">0xD807AA98A3030242</span>),</span> <span class="line" id="L710"> roundParam512(<span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">9</span>, <span class="tok-number">0x12835B0145706FBE</span>),</span> <span class="line" id="L711"> roundParam512(<span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">10</span>, <span class="tok-number">0x243185BE4EE4B28C</span>),</span> <span class="line" id="L712"> roundParam512(<span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">11</span>, <span class="tok-number">0x550C7DC3D5FFB4E2</span>),</span> <span class="line" id="L713"> roundParam512(<span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">12</span>, <span class="tok-number">0x72BE5D74F27B896F</span>),</span> <span class="line" id="L714"> roundParam512(<span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">13</span>, <span class="tok-number">0x80DEB1FE3B1696B1</span>),</span> <span class="line" id="L715"> roundParam512(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">14</span>, <span class="tok-number">0x9BDC06A725C71235</span>),</span> <span class="line" id="L716"> roundParam512(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">15</span>, <span class="tok-number">0xC19BF174CF692694</span>),</span> <span class="line" id="L717"> roundParam512(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">16</span>, <span class="tok-number">0xE49B69C19EF14AD2</span>),</span> <span class="line" id="L718"> roundParam512(<span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">17</span>, <span class="tok-number">0xEFBE4786384F25E3</span>),</span> <span class="line" id="L719"> roundParam512(<span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">18</span>, <span class="tok-number">0x0FC19DC68B8CD5B5</span>),</span> <span class="line" id="L720"> roundParam512(<span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">19</span>, <span class="tok-number">0x240CA1CC77AC9C65</span>),</span> <span class="line" id="L721"> roundParam512(<span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">20</span>, <span class="tok-number">0x2DE92C6F592B0275</span>),</span> <span class="line" id="L722"> roundParam512(<span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">21</span>, <span class="tok-number">0x4A7484AA6EA6E483</span>),</span> <span class="line" id="L723"> roundParam512(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">22</span>, <span class="tok-number">0x5CB0A9DCBD41FBD4</span>),</span> <span class="line" id="L724"> roundParam512(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">23</span>, <span class="tok-number">0x76F988DA831153B5</span>),</span> <span class="line" id="L725"> roundParam512(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">24</span>, <span class="tok-number">0x983E5152EE66DFAB</span>),</span> <span class="line" id="L726"> roundParam512(<span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">25</span>, <span class="tok-number">0xA831C66D2DB43210</span>),</span> <span class="line" id="L727"> roundParam512(<span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">26</span>, <span class="tok-number">0xB00327C898FB213F</span>),</span> <span class="line" id="L728"> roundParam512(<span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">27</span>, <span class="tok-number">0xBF597FC7BEEF0EE4</span>),</span> <span class="line" id="L729"> roundParam512(<span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">28</span>, <span class="tok-number">0xC6E00BF33DA88FC2</span>),</span> <span class="line" id="L730"> roundParam512(<span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">29</span>, <span class="tok-number">0xD5A79147930AA725</span>),</span> <span class="line" id="L731"> roundParam512(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">30</span>, <span class="tok-number">0x06CA6351E003826F</span>),</span> <span class="line" id="L732"> roundParam512(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">31</span>, <span class="tok-number">0x142929670A0E6E70</span>),</span> <span class="line" id="L733"> roundParam512(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">32</span>, <span class="tok-number">0x27B70A8546D22FFC</span>),</span> <span class="line" id="L734"> roundParam512(<span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">33</span>, <span class="tok-number">0x2E1B21385C26C926</span>),</span> <span class="line" id="L735"> roundParam512(<span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">34</span>, <span class="tok-number">0x4D2C6DFC5AC42AED</span>),</span> <span class="line" id="L736"> roundParam512(<span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">35</span>, <span class="tok-number">0x53380D139D95B3DF</span>),</span> <span class="line" id="L737"> roundParam512(<span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">36</span>, <span class="tok-number">0x650A73548BAF63DE</span>),</span> <span class="line" id="L738"> roundParam512(<span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">37</span>, <span class="tok-number">0x766A0ABB3C77B2A8</span>),</span> <span class="line" id="L739"> roundParam512(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">38</span>, <span class="tok-number">0x81C2C92E47EDAEE6</span>),</span> <span class="line" id="L740"> roundParam512(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">39</span>, <span class="tok-number">0x92722C851482353B</span>),</span> <span class="line" id="L741"> roundParam512(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">40</span>, <span class="tok-number">0xA2BFE8A14CF10364</span>),</span> <span class="line" id="L742"> roundParam512(<span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">41</span>, <span class="tok-number">0xA81A664BBC423001</span>),</span> <span class="line" id="L743"> roundParam512(<span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">42</span>, <span class="tok-number">0xC24B8B70D0F89791</span>),</span> <span class="line" id="L744"> roundParam512(<span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">43</span>, <span class="tok-number">0xC76C51A30654BE30</span>),</span> <span class="line" id="L745"> roundParam512(<span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">44</span>, <span class="tok-number">0xD192E819D6EF5218</span>),</span> <span class="line" id="L746"> roundParam512(<span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">45</span>, <span class="tok-number">0xD69906245565A910</span>),</span> <span class="line" id="L747"> roundParam512(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">46</span>, <span class="tok-number">0xF40E35855771202A</span>),</span> <span class="line" id="L748"> roundParam512(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">47</span>, <span class="tok-number">0x106AA07032BBD1B8</span>),</span> <span class="line" id="L749"> roundParam512(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">48</span>, <span class="tok-number">0x19A4C116B8D2D0C8</span>),</span> <span class="line" id="L750"> roundParam512(<span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">49</span>, <span class="tok-number">0x1E376C085141AB53</span>),</span> <span class="line" id="L751"> roundParam512(<span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">50</span>, <span class="tok-number">0x2748774CDF8EEB99</span>),</span> <span class="line" id="L752"> roundParam512(<span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">51</span>, <span class="tok-number">0x34B0BCB5E19B48A8</span>),</span> <span class="line" id="L753"> roundParam512(<span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">52</span>, <span class="tok-number">0x391C0CB3C5C95A63</span>),</span> <span class="line" id="L754"> roundParam512(<span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">53</span>, <span class="tok-number">0x4ED8AA4AE3418ACB</span>),</span> <span class="line" id="L755"> roundParam512(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">54</span>, <span class="tok-number">0x5B9CCA4F7763E373</span>),</span> <span class="line" id="L756"> roundParam512(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">55</span>, <span class="tok-number">0x682E6FF3D6B2B8A3</span>),</span> <span class="line" id="L757"> roundParam512(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">56</span>, <span class="tok-number">0x748F82EE5DEFB2FC</span>),</span> <span class="line" id="L758"> roundParam512(<span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">57</span>, <span class="tok-number">0x78A5636F43172F60</span>),</span> <span class="line" id="L759"> roundParam512(<span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">58</span>, <span class="tok-number">0x84C87814A1F0AB72</span>),</span> <span class="line" id="L760"> roundParam512(<span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">59</span>, <span class="tok-number">0x8CC702081A6439EC</span>),</span> <span class="line" id="L761"> roundParam512(<span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">60</span>, <span class="tok-number">0x90BEFFFA23631E28</span>),</span> <span class="line" id="L762"> roundParam512(<span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">61</span>, <span class="tok-number">0xA4506CEBDE82BDE9</span>),</span> <span class="line" id="L763"> roundParam512(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">62</span>, <span class="tok-number">0xBEF9A3F7B2C67915</span>),</span> <span class="line" id="L764"> roundParam512(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">63</span>, <span class="tok-number">0xC67178F2E372532B</span>),</span> <span class="line" id="L765"> roundParam512(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">64</span>, <span class="tok-number">0xCA273ECEEA26619C</span>),</span> <span class="line" id="L766"> roundParam512(<span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">65</span>, <span class="tok-number">0xD186B8C721C0C207</span>),</span> <span class="line" id="L767"> roundParam512(<span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">66</span>, <span class="tok-number">0xEADA7DD6CDE0EB1E</span>),</span> <span class="line" id="L768"> roundParam512(<span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">67</span>, <span class="tok-number">0xF57D4F7FEE6ED178</span>),</span> <span class="line" id="L769"> roundParam512(<span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">68</span>, <span class="tok-number">0x06F067AA72176FBA</span>),</span> <span class="line" id="L770"> roundParam512(<span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">69</span>, <span class="tok-number">0x0A637DC5A2C898A6</span>),</span> <span class="line" id="L771"> roundParam512(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">70</span>, <span class="tok-number">0x113F9804BEF90DAE</span>),</span> <span class="line" id="L772"> roundParam512(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">71</span>, <span class="tok-number">0x1B710B35131C471B</span>),</span> <span class="line" id="L773"> roundParam512(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">72</span>, <span class="tok-number">0x28DB77F523047D84</span>),</span> <span class="line" id="L774"> roundParam512(<span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">73</span>, <span class="tok-number">0x32CAAB7B40C72493</span>),</span> <span class="line" id="L775"> roundParam512(<span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">74</span>, <span class="tok-number">0x3C9EBE0A15C9BEBC</span>),</span> <span class="line" id="L776"> roundParam512(<span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">75</span>, <span class="tok-number">0x431D67C49C100D4C</span>),</span> <span class="line" id="L777"> roundParam512(<span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">76</span>, <span class="tok-number">0x4CC5D4BECB3E42B6</span>),</span> <span class="line" id="L778"> roundParam512(<span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">77</span>, <span class="tok-number">0x597F299CFC657E2A</span>),</span> <span class="line" id="L779"> roundParam512(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">78</span>, <span class="tok-number">0x5FCB6FAB3AD6FAEC</span>),</span> <span class="line" id="L780"> roundParam512(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">79</span>, <span class="tok-number">0x6C44198C4A475817</span>),</span> <span class="line" id="L781"> };</span> <span class="line" id="L782"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (round0) \|r\| {</span> <span class="line" id="L783"> v[r.h] = v[r.h] +% (math.rotr(<span class="tok-type">u64</span>, v[r.e], <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">14</span>)) ^ math.rotr(<span class="tok-type">u64</span>, v[r.e], <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">18</span>)) ^ math.rotr(<span class="tok-type">u64</span>, v[r.e], <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">41</span>))) +% (v[r.g] ^ (v[r.e] & (v[r.f] ^ v[r.g]))) +% r.k +% s[r.i];</span> <span class="line" id="L784"></span> <span class="line" id="L785"> v[r.d] = v[r.d] +% v[r.h];</span> <span class="line" id="L786"></span> <span class="line" id="L787"> v[r.h] = v[r.h] +% (math.rotr(<span class="tok-type">u64</span>, v[r.a], <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">28</span>)) ^ math.rotr(<span class="tok-type">u64</span>, v[r.a], <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">34</span>)) ^ math.rotr(<span class="tok-type">u64</span>, v[r.a], <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">39</span>))) +% ((v[r.a] & (v[r.b] \| v[r.c])) \| (v[r.b] & v[r.c]));</span> <span class="line" id="L788"> }</span> <span class="line" id="L789"></span> <span class="line" id="L790"> d.s[<span class="tok-number">0</span>] +%= v[<span class="tok-number">0</span>];</span> <span class="line" id="L791"> d.s[<span class="tok-number">1</span>] +%= v[<span class="tok-number">1</span>];</span> <span class="line" id="L792"> d.s[<span class="tok-number">2</span>] +%= v[<span class="tok-number">2</span>];</span> <span class="line" id="L793"> d.s[<span class="tok-number">3</span>] +%= v[<span class="tok-number">3</span>];</span> <span class="line" id="L794"> d.s[<span class="tok-number">4</span>] +%= v[<span class="tok-number">4</span>];</span> <span class="line" id="L795"> d.s[<span class="tok-number">5</span>] +%= v[<span class="tok-number">5</span>];</span> <span class="line" id="L796"> d.s[<span class="tok-number">6</span>] +%= v[<span class="tok-number">6</span>];</span> <span class="line" id="L797"> d.s[<span class="tok-number">7</span>] +%= v[<span class="tok-number">7</span>];</span> <span class="line" id="L798"> }</span> <span class="line" id="L799"> };</span> <span class="line" id="L800">}</span> <span class="line" id="L801"></span> <span class="line" id="L802"><span class="tok-kw">test</span> <span class="tok-str">"sha384 single"</span> {</span> <span class="line" id="L803"> <span class="tok-kw">const</span> h1 = <span class="tok-str">"38b060a751ac96384cd9327eb1b1e36a21fdb71114be07434c0cc7bf63f6e1da274edebfe76f65fbd51ad2f14898b95b"</span>;</span> <span class="line" id="L804"> <span class="tok-kw">try</span> htest.assertEqualHash(Sha384, h1, <span class="tok-str">""</span>);</span> <span class="line" id="L805"></span> <span class="line" id="L806"> <span class="tok-kw">const</span> h2 = <span class="tok-str">"cb00753f45a35e8bb5a03d699ac65007272c32ab0eded1631a8b605a43ff5bed8086072ba1e7cc2358baeca134c825a7"</span>;</span> <span class="line" id="L807"> <span class="tok-kw">try</span> htest.assertEqualHash(Sha384, h2, <span class="tok-str">"abc"</span>);</span> <span class="line" id="L808"></span> <span class="line" id="L809"> <span class="tok-kw">const</span> h3 = <span class="tok-str">"09330c33f71147e83d192fc782cd1b4753111b173b3b05d22fa08086e3b0f712fcc7c71a557e2db966c3e9fa91746039"</span>;</span> <span class="line" id="L810"> <span class="tok-kw">try</span> htest.assertEqualHash(Sha384, h3, <span class="tok-str">"abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmnhijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu"</span>);</span> <span class="line" id="L811">}</span> <span class="line" id="L812"></span> <span class="line" id="L813"><span class="tok-kw">test</span> <span class="tok-str">"sha384 streaming"</span> {</span> <span class="line" id="L814"> <span class="tok-kw">var</span> h = Sha384.init(.{});</span> <span class="line" id="L815"> <span class="tok-kw">var</span> out: [<span class="tok-number">48</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L816"></span> <span class="line" id="L817"> <span class="tok-kw">const</span> h1 = <span class="tok-str">"38b060a751ac96384cd9327eb1b1e36a21fdb71114be07434c0cc7bf63f6e1da274edebfe76f65fbd51ad2f14898b95b"</span>;</span> <span class="line" id="L818"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L819"> <span class="tok-kw">try</span> htest.assertEqual(h1, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L820"></span> <span class="line" id="L821"> <span class="tok-kw">const</span> h2 = <span class="tok-str">"cb00753f45a35e8bb5a03d699ac65007272c32ab0eded1631a8b605a43ff5bed8086072ba1e7cc2358baeca134c825a7"</span>;</span> <span class="line" id="L822"></span> <span class="line" id="L823"> h = Sha384.init(.{});</span> <span class="line" id="L824"> h.update(<span class="tok-str">"abc"</span>);</span> <span class="line" id="L825"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L826"> <span class="tok-kw">try</span> htest.assertEqual(h2, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L827"></span> <span class="line" id="L828"> h = Sha384.init(.{});</span> <span class="line" id="L829"> h.update(<span class="tok-str">"a"</span>);</span> <span class="line" id="L830"> h.update(<span class="tok-str">"b"</span>);</span> <span class="line" id="L831"> h.update(<span class="tok-str">"c"</span>);</span> <span class="line" id="L832"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L833"> <span class="tok-kw">try</span> htest.assertEqual(h2, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L834">}</span> <span class="line" id="L835"></span> <span class="line" id="L836"><span class="tok-kw">test</span> <span class="tok-str">"sha512 single"</span> {</span> <span class="line" id="L837"> <span class="tok-kw">const</span> h1 = <span class="tok-str">"cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e"</span>;</span> <span class="line" id="L838"> <span class="tok-kw">try</span> htest.assertEqualHash(Sha512, h1, <span class="tok-str">""</span>);</span> <span class="line" id="L839"></span> <span class="line" id="L840"> <span class="tok-kw">const</span> h2 = <span class="tok-str">"ddaf35a193617abacc417349ae20413112e6fa4e89a97ea20a9eeee64b55d39a2192992a274fc1a836ba3c23a3feebbd454d4423643ce80e2a9ac94fa54ca49f"</span>;</span> <span class="line" id="L841"> <span class="tok-kw">try</span> htest.assertEqualHash(Sha512, h2, <span class="tok-str">"abc"</span>);</span> <span class="line" id="L842"></span> <span class="line" id="L843"> <span class="tok-kw">const</span> h3 = <span class="tok-str">"8e959b75dae313da8cf4f72814fc143f8f7779c6eb9f7fa17299aeadb6889018501d289e4900f7e4331b99dec4b5433ac7d329eeb6dd26545e96e55b874be909"</span>;</span> <span class="line" id="L844"> <span class="tok-kw">try</span> htest.assertEqualHash(Sha512, h3, <span class="tok-str">"abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmnhijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu"</span>);</span> <span class="line" id="L845">}</span> <span class="line" id="L846"></span> <span class="line" id="L847"><span class="tok-kw">test</span> <span class="tok-str">"sha512 streaming"</span> {</span> <span class="line" id="L848"> <span class="tok-kw">var</span> h = Sha512.init(.{});</span> <span class="line" id="L849"> <span class="tok-kw">var</span> out: [<span class="tok-number">64</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L850"></span> <span class="line" id="L851"> <span class="tok-kw">const</span> h1 = <span class="tok-str">"cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e"</span>;</span> <span class="line" id="L852"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L853"> <span class="tok-kw">try</span> htest.assertEqual(h1, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L854"></span> <span class="line" id="L855"> <span class="tok-kw">const</span> h2 = <span class="tok-str">"ddaf35a193617abacc417349ae20413112e6fa4e89a97ea20a9eeee64b55d39a2192992a274fc1a836ba3c23a3feebbd454d4423643ce80e2a9ac94fa54ca49f"</span>;</span> <span class="line" id="L856"></span> <span class="line" id="L857"> h = Sha512.init(.{});</span> <span class="line" id="L858"> h.update(<span class="tok-str">"abc"</span>);</span> <span class="line" id="L859"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L860"> <span class="tok-kw">try</span> htest.assertEqual(h2, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L861"></span> <span class="line" id="L862"> h = Sha512.init(.{});</span> <span class="line" id="L863"> h.update(<span class="tok-str">"a"</span>);</span> <span class="line" id="L864"> h.update(<span class="tok-str">"b"</span>);</span> <span class="line" id="L865"> h.update(<span class="tok-str">"c"</span>);</span> <span class="line" id="L866"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L867"> <span class="tok-kw">try</span> htest.assertEqual(h2, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L868">}</span> <span class="line" id="L869"></span> <span class="line" id="L870"><span class="tok-kw">test</span> <span class="tok-str">"sha512 aligned final"</span> {</span> <span class="line" id="L871"> <span class="tok-kw">var</span> block = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} ** Sha512.block_length;</span> <span class="line" id="L872"> <span class="tok-kw">var</span> out: [Sha512.digest_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L873"></span> <span class="line" id="L874"> <span class="tok-kw">var</span> h = Sha512.init(.{});</span> <span class="line" id="L875"> h.update(&block);</span> <span class="line" id="L876"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L877">}</span> <span class="line" id="L878"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/crypto/tls.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/tls.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-comment">//! Plaintext:</span></span> <span class="line" id="L2"><span class="tok-comment">//! * type: ContentType</span></span> <span class="line" id="L3"><span class="tok-comment">//! * legacy_record_version: u16 = 0x0303,</span></span> <span class="line" id="L4"><span class="tok-comment">//! * length: u16,</span></span> <span class="line" id="L5"><span class="tok-comment">//! - The length (in bytes) of the following TLSPlaintext.fragment. The</span></span> <span class="line" id="L6"><span class="tok-comment">//! length MUST NOT exceed 2^14 bytes.</span></span> <span class="line" id="L7"><span class="tok-comment">//! * fragment: opaque</span></span> <span class="line" id="L8"><span class="tok-comment">//! - the data being transmitted</span></span> <span class="line" id="L9"><span class="tok-comment">//!</span></span> <span class="line" id="L10"><span class="tok-comment">//! Ciphertext</span></span> <span class="line" id="L11"><span class="tok-comment">//! * ContentType opaque_type = application_data; /* 23 /</span></span> <span class="line" id="L12"><span class="tok-comment">//! ProtocolVersion legacy_record_version = 0x0303; /* TLS v1.2 /</span></span> <span class="line" id="L13"><span class="tok-comment">//! uint16 length;</span></span> <span class="line" id="L14"><span class="tok-comment">//! * opaque encrypted_record[TLSCiphertext.length];</span></span> <span class="line" id="L15"><span class="tok-comment">//!</span></span> <span class="line" id="L16"><span class="tok-comment">//! Handshake:</span></span> <span class="line" id="L17"><span class="tok-comment">//! * type: HandshakeType</span></span> <span class="line" id="L18"><span class="tok-comment">//! * length: u24</span></span> <span class="line" id="L19"><span class="tok-comment">//! * data: opaque</span></span> <span class="line" id="L20"><span class="tok-comment">//!</span></span> <span class="line" id="L21"><span class="tok-comment">//! ServerHello:</span></span> <span class="line" id="L22"><span class="tok-comment">//! * ProtocolVersion legacy_version = 0x0303;</span></span> <span class="line" id="L23"><span class="tok-comment">//! * Random random;</span></span> <span class="line" id="L24"><span class="tok-comment">//! * opaque legacy_session_id_echo<0..32>;</span></span> <span class="line" id="L25"><span class="tok-comment">//! * CipherSuite cipher_suite;</span></span> <span class="line" id="L26"><span class="tok-comment">//! * uint8 legacy_compression_method = 0;</span></span> <span class="line" id="L27"><span class="tok-comment">//! * Extension extensions<6..2^16-1>;</span></span> <span class="line" id="L28"><span class="tok-comment">//!</span></span> <span class="line" id="L29"><span class="tok-comment">//! Extension:</span></span> <span class="line" id="L30"><span class="tok-comment">//! * ExtensionType extension_type;</span></span> <span class="line" id="L31"><span class="tok-comment">//! * opaque extension_data<0..2^16-1>;</span></span> <span class="line" id="L32"></span> <span class="line" id="L33"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"../std.zig"</span>);</span> <span class="line" id="L34"><span class="tok-kw">const</span> Tls = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L35"><span class="tok-kw">const</span> net = std.net;</span> <span class="line" id="L36"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L37"><span class="tok-kw">const</span> crypto = std.crypto;</span> <span class="line" id="L38"><span class="tok-kw">const</span> assert = std.debug.assert;</span> <span class="line" id="L39"></span> <span class="line" id="L40"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Client = <span class="tok-builtin">@import</span>(<span class="tok-str">"tls/Client.zig"</span>);</span> <span class="line" id="L41"></span> <span class="line" id="L42"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> record_header_len = <span class="tok-number">5</span>;</span> <span class="line" id="L43"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> max_ciphertext_len = (<span class="tok-number">1</span> << <span class="tok-number">14</span>) + <span class="tok-number">256</span>;</span> <span class="line" id="L44"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> max_ciphertext_record_len = max_ciphertext_len + record_header_len;</span> <span class="line" id="L45"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> hello_retry_request_sequence = [<span class="tok-number">32</span>]<span class="tok-type">u8</span>{</span> <span class="line" id="L46"> <span class="tok-number">0xCF</span>, <span class="tok-number">0x21</span>, <span class="tok-number">0xAD</span>, <span class="tok-number">0x74</span>, <span class="tok-number">0xE5</span>, <span class="tok-number">0x9A</span>, <span class="tok-number">0x61</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0xBE</span>, <span class="tok-number">0x1D</span>, <span class="tok-number">0x8C</span>, <span class="tok-number">0x02</span>, <span class="tok-number">0x1E</span>, <span class="tok-number">0x65</span>, <span class="tok-number">0xB8</span>, <span class="tok-number">0x91</span>,</span> <span class="line" id="L47"> <span class="tok-number">0xC2</span>, <span class="tok-number">0xA2</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0x16</span>, <span class="tok-number">0x7A</span>, <span class="tok-number">0xBB</span>, <span class="tok-number">0x8C</span>, <span class="tok-number">0x5E</span>, <span class="tok-number">0x07</span>, <span class="tok-number">0x9E</span>, <span class="tok-number">0x09</span>, <span class="tok-number">0xE2</span>, <span class="tok-number">0xC8</span>, <span class="tok-number">0xA8</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x9C</span>,</span> <span class="line" id="L48">};</span> <span class="line" id="L49"></span> <span class="line" id="L50"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> close_notify_alert = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L51"> <span class="tok-builtin">@intFromEnum</span>(AlertLevel.warning),</span> <span class="line" id="L52"> <span class="tok-builtin">@intFromEnum</span>(AlertDescription.close_notify),</span> <span class="line" id="L53">};</span> <span class="line" id="L54"></span> <span class="line" id="L55"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> ProtocolVersion = <span class="tok-kw">enum</span>(<span class="tok-type">u16</span>) {</span> <span class="line" id="L56"> tls_1_2 = <span class="tok-number">0x0303</span>,</span> <span class="line" id="L57"> tls_1_3 = <span class="tok-number">0x0304</span>,</span> <span class="line" id="L58"> _,</span> <span class="line" id="L59">};</span> <span class="line" id="L60"></span> <span class="line" id="L61"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> ContentType = <span class="tok-kw">enum</span>(<span class="tok-type">u8</span>) {</span> <span class="line" id="L62"> invalid = <span class="tok-number">0</span>,</span> <span class="line" id="L63"> change_cipher_spec = <span class="tok-number">20</span>,</span> <span class="line" id="L64"> alert = <span class="tok-number">21</span>,</span> <span class="line" id="L65"> handshake = <span class="tok-number">22</span>,</span> <span class="line" id="L66"> application_data = <span class="tok-number">23</span>,</span> <span class="line" id="L67"> _,</span> <span class="line" id="L68">};</span> <span class="line" id="L69"></span> <span class="line" id="L70"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> HandshakeType = <span class="tok-kw">enum</span>(<span class="tok-type">u8</span>) {</span> <span class="line" id="L71"> client_hello = <span class="tok-number">1</span>,</span> <span class="line" id="L72"> server_hello = <span class="tok-number">2</span>,</span> <span class="line" id="L73"> new_session_ticket = <span class="tok-number">4</span>,</span> <span class="line" id="L74"> end_of_early_data = <span class="tok-number">5</span>,</span> <span class="line" id="L75"> encrypted_extensions = <span class="tok-number">8</span>,</span> <span class="line" id="L76"> certificate = <span class="tok-number">11</span>,</span> <span class="line" id="L77"> certificate_request = <span class="tok-number">13</span>,</span> <span class="line" id="L78"> certificate_verify = <span class="tok-number">15</span>,</span> <span class="line" id="L79"> finished = <span class="tok-number">20</span>,</span> <span class="line" id="L80"> key_update = <span class="tok-number">24</span>,</span> <span class="line" id="L81"> message_hash = <span class="tok-number">254</span>,</span> <span class="line" id="L82"> _,</span> <span class="line" id="L83">};</span> <span class="line" id="L84"></span> <span class="line" id="L85"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> ExtensionType = <span class="tok-kw">enum</span>(<span class="tok-type">u16</span>) {</span> <span class="line" id="L86"> <span class="tok-comment">/// RFC 6066</span></span> <span class="line" id="L87"> server_name = <span class="tok-number">0</span>,</span> <span class="line" id="L88"> <span class="tok-comment">/// RFC 6066</span></span> <span class="line" id="L89"> max_fragment_length = <span class="tok-number">1</span>,</span> <span class="line" id="L90"> <span class="tok-comment">/// RFC 6066</span></span> <span class="line" id="L91"> status_request = <span class="tok-number">5</span>,</span> <span class="line" id="L92"> <span class="tok-comment">/// RFC 8422, 7919</span></span> <span class="line" id="L93"> supported_groups = <span class="tok-number">10</span>,</span> <span class="line" id="L94"> <span class="tok-comment">/// RFC 8446</span></span> <span class="line" id="L95"> signature_algorithms = <span class="tok-number">13</span>,</span> <span class="line" id="L96"> <span class="tok-comment">/// RFC 5764</span></span> <span class="line" id="L97"> use_srtp = <span class="tok-number">14</span>,</span> <span class="line" id="L98"> <span class="tok-comment">/// RFC 6520</span></span> <span class="line" id="L99"> heartbeat = <span class="tok-number">15</span>,</span> <span class="line" id="L100"> <span class="tok-comment">/// RFC 7301</span></span> <span class="line" id="L101"> application_layer_protocol_negotiation = <span class="tok-number">16</span>,</span> <span class="line" id="L102"> <span class="tok-comment">/// RFC 6962</span></span> <span class="line" id="L103"> signed_certificate_timestamp = <span class="tok-number">18</span>,</span> <span class="line" id="L104"> <span class="tok-comment">/// RFC 7250</span></span> <span class="line" id="L105"> client_certificate_type = <span class="tok-number">19</span>,</span> <span class="line" id="L106"> <span class="tok-comment">/// RFC 7250</span></span> <span class="line" id="L107"> server_certificate_type = <span class="tok-number">20</span>,</span> <span class="line" id="L108"> <span class="tok-comment">/// RFC 7685</span></span> <span class="line" id="L109"> padding = <span class="tok-number">21</span>,</span> <span class="line" id="L110"> <span class="tok-comment">/// RFC 8446</span></span> <span class="line" id="L111"> pre_shared_key = <span class="tok-number">41</span>,</span> <span class="line" id="L112"> <span class="tok-comment">/// RFC 8446</span></span> <span class="line" id="L113"> early_data = <span class="tok-number">42</span>,</span> <span class="line" id="L114"> <span class="tok-comment">/// RFC 8446</span></span> <span class="line" id="L115"> supported_versions = <span class="tok-number">43</span>,</span> <span class="line" id="L116"> <span class="tok-comment">/// RFC 8446</span></span> <span class="line" id="L117"> cookie = <span class="tok-number">44</span>,</span> <span class="line" id="L118"> <span class="tok-comment">/// RFC 8446</span></span> <span class="line" id="L119"> psk_key_exchange_modes = <span class="tok-number">45</span>,</span> <span class="line" id="L120"> <span class="tok-comment">/// RFC 8446</span></span> <span class="line" id="L121"> certificate_authorities = <span class="tok-number">47</span>,</span> <span class="line" id="L122"> <span class="tok-comment">/// RFC 8446</span></span> <span class="line" id="L123"> oid_filters = <span class="tok-number">48</span>,</span> <span class="line" id="L124"> <span class="tok-comment">/// RFC 8446</span></span> <span class="line" id="L125"> post_handshake_auth = <span class="tok-number">49</span>,</span> <span class="line" id="L126"> <span class="tok-comment">/// RFC 8446</span></span> <span class="line" id="L127"> signature_algorithms_cert = <span class="tok-number">50</span>,</span> <span class="line" id="L128"> <span class="tok-comment">/// RFC 8446</span></span> <span class="line" id="L129"> key_share = <span class="tok-number">51</span>,</span> <span class="line" id="L130"></span> <span class="line" id="L131"> _,</span> <span class="line" id="L132">};</span> <span class="line" id="L133"></span> <span class="line" id="L134"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> AlertLevel = <span class="tok-kw">enum</span>(<span class="tok-type">u8</span>) {</span> <span class="line" id="L135"> warning = <span class="tok-number">1</span>,</span> <span class="line" id="L136"> fatal = <span class="tok-number">2</span>,</span> <span class="line" id="L137"> _,</span> <span class="line" id="L138">};</span> <span class="line" id="L139"></span> <span class="line" id="L140"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> AlertDescription = <span class="tok-kw">enum</span>(<span class="tok-type">u8</span>) {</span> <span class="line" id="L141"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Error = <span class="tok-kw">error</span>{</span> <span class="line" id="L142"> TlsAlertUnexpectedMessage,</span> <span class="line" id="L143"> TlsAlertBadRecordMac,</span> <span class="line" id="L144"> TlsAlertRecordOverflow,</span> <span class="line" id="L145"> TlsAlertHandshakeFailure,</span> <span class="line" id="L146"> TlsAlertBadCertificate,</span> <span class="line" id="L147"> TlsAlertUnsupportedCertificate,</span> <span class="line" id="L148"> TlsAlertCertificateRevoked,</span> <span class="line" id="L149"> TlsAlertCertificateExpired,</span> <span class="line" id="L150"> TlsAlertCertificateUnknown,</span> <span class="line" id="L151"> TlsAlertIllegalParameter,</span> <span class="line" id="L152"> TlsAlertUnknownCa,</span> <span class="line" id="L153"> TlsAlertAccessDenied,</span> <span class="line" id="L154"> TlsAlertDecodeError,</span> <span class="line" id="L155"> TlsAlertDecryptError,</span> <span class="line" id="L156"> TlsAlertProtocolVersion,</span> <span class="line" id="L157"> TlsAlertInsufficientSecurity,</span> <span class="line" id="L158"> TlsAlertInternalError,</span> <span class="line" id="L159"> TlsAlertInappropriateFallback,</span> <span class="line" id="L160"> TlsAlertMissingExtension,</span> <span class="line" id="L161"> TlsAlertUnsupportedExtension,</span> <span class="line" id="L162"> TlsAlertUnrecognizedName,</span> <span class="line" id="L163"> TlsAlertBadCertificateStatusResponse,</span> <span class="line" id="L164"> TlsAlertUnknownPskIdentity,</span> <span class="line" id="L165"> TlsAlertCertificateRequired,</span> <span class="line" id="L166"> TlsAlertNoApplicationProtocol,</span> <span class="line" id="L167"> TlsAlertUnknown,</span> <span class="line" id="L168"> };</span> <span class="line" id="L169"></span> <span class="line" id="L170"> close_notify = <span class="tok-number">0</span>,</span> <span class="line" id="L171"> unexpected_message = <span class="tok-number">10</span>,</span> <span class="line" id="L172"> bad_record_mac = <span class="tok-number">20</span>,</span> <span class="line" id="L173"> record_overflow = <span class="tok-number">22</span>,</span> <span class="line" id="L174"> handshake_failure = <span class="tok-number">40</span>,</span> <span class="line" id="L175"> bad_certificate = <span class="tok-number">42</span>,</span> <span class="line" id="L176"> unsupported_certificate = <span class="tok-number">43</span>,</span> <span class="line" id="L177"> certificate_revoked = <span class="tok-number">44</span>,</span> <span class="line" id="L178"> certificate_expired = <span class="tok-number">45</span>,</span> <span class="line" id="L179"> certificate_unknown = <span class="tok-number">46</span>,</span> <span class="line" id="L180"> illegal_parameter = <span class="tok-number">47</span>,</span> <span class="line" id="L181"> unknown_ca = <span class="tok-number">48</span>,</span> <span class="line" id="L182"> access_denied = <span class="tok-number">49</span>,</span> <span class="line" id="L183"> decode_error = <span class="tok-number">50</span>,</span> <span class="line" id="L184"> decrypt_error = <span class="tok-number">51</span>,</span> <span class="line" id="L185"> protocol_version = <span class="tok-number">70</span>,</span> <span class="line" id="L186"> insufficient_security = <span class="tok-number">71</span>,</span> <span class="line" id="L187"> internal_error = <span class="tok-number">80</span>,</span> <span class="line" id="L188"> inappropriate_fallback = <span class="tok-number">86</span>,</span> <span class="line" id="L189"> user_canceled = <span class="tok-number">90</span>,</span> <span class="line" id="L190"> missing_extension = <span class="tok-number">109</span>,</span> <span class="line" id="L191"> unsupported_extension = <span class="tok-number">110</span>,</span> <span class="line" id="L192"> unrecognized_name = <span class="tok-number">112</span>,</span> <span class="line" id="L193"> bad_certificate_status_response = <span class="tok-number">113</span>,</span> <span class="line" id="L194"> unknown_psk_identity = <span class="tok-number">115</span>,</span> <span class="line" id="L195"> certificate_required = <span class="tok-number">116</span>,</span> <span class="line" id="L196"> no_application_protocol = <span class="tok-number">120</span>,</span> <span class="line" id="L197"> _,</span> <span class="line" id="L198"></span> <span class="line" id="L199"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toError</span>(alert: AlertDescription) Error!<span class="tok-type">void</span> {</span> <span class="line" id="L200"> <span class="tok-kw">return</span> <span class="tok-kw">switch</span> (alert) {</span> <span class="line" id="L201"> .close_notify => {}, <span class="tok-comment">// not an error</span> </span> <span class="line" id="L202"> .unexpected_message => <span class="tok-kw">error</span>.TlsAlertUnexpectedMessage,</span> <span class="line" id="L203"> .bad_record_mac => <span class="tok-kw">error</span>.TlsAlertBadRecordMac,</span> <span class="line" id="L204"> .record_overflow => <span class="tok-kw">error</span>.TlsAlertRecordOverflow,</span> <span class="line" id="L205"> .handshake_failure => <span class="tok-kw">error</span>.TlsAlertHandshakeFailure,</span> <span class="line" id="L206"> .bad_certificate => <span class="tok-kw">error</span>.TlsAlertBadCertificate,</span> <span class="line" id="L207"> .unsupported_certificate => <span class="tok-kw">error</span>.TlsAlertUnsupportedCertificate,</span> <span class="line" id="L208"> .certificate_revoked => <span class="tok-kw">error</span>.TlsAlertCertificateRevoked,</span> <span class="line" id="L209"> .certificate_expired => <span class="tok-kw">error</span>.TlsAlertCertificateExpired,</span> <span class="line" id="L210"> .certificate_unknown => <span class="tok-kw">error</span>.TlsAlertCertificateUnknown,</span> <span class="line" id="L211"> .illegal_parameter => <span class="tok-kw">error</span>.TlsAlertIllegalParameter,</span> <span class="line" id="L212"> .unknown_ca => <span class="tok-kw">error</span>.TlsAlertUnknownCa,</span> <span class="line" id="L213"> .access_denied => <span class="tok-kw">error</span>.TlsAlertAccessDenied,</span> <span class="line" id="L214"> .decode_error => <span class="tok-kw">error</span>.TlsAlertDecodeError,</span> <span class="line" id="L215"> .decrypt_error => <span class="tok-kw">error</span>.TlsAlertDecryptError,</span> <span class="line" id="L216"> .protocol_version => <span class="tok-kw">error</span>.TlsAlertProtocolVersion,</span> <span class="line" id="L217"> .insufficient_security => <span class="tok-kw">error</span>.TlsAlertInsufficientSecurity,</span> <span class="line" id="L218"> .internal_error => <span class="tok-kw">error</span>.TlsAlertInternalError,</span> <span class="line" id="L219"> .inappropriate_fallback => <span class="tok-kw">error</span>.TlsAlertInappropriateFallback,</span> <span class="line" id="L220"> .user_canceled => {}, <span class="tok-comment">// not an error</span> </span> <span class="line" id="L221"> .missing_extension => <span class="tok-kw">error</span>.TlsAlertMissingExtension,</span> <span class="line" id="L222"> .unsupported_extension => <span class="tok-kw">error</span>.TlsAlertUnsupportedExtension,</span> <span class="line" id="L223"> .unrecognized_name => <span class="tok-kw">error</span>.TlsAlertUnrecognizedName,</span> <span class="line" id="L224"> .bad_certificate_status_response => <span class="tok-kw">error</span>.TlsAlertBadCertificateStatusResponse,</span> <span class="line" id="L225"> .unknown_psk_identity => <span class="tok-kw">error</span>.TlsAlertUnknownPskIdentity,</span> <span class="line" id="L226"> .certificate_required => <span class="tok-kw">error</span>.TlsAlertCertificateRequired,</span> <span class="line" id="L227"> .no_application_protocol => <span class="tok-kw">error</span>.TlsAlertNoApplicationProtocol,</span> <span class="line" id="L228"> _ => <span class="tok-kw">error</span>.TlsAlertUnknown,</span> <span class="line" id="L229"> };</span> <span class="line" id="L230"> }</span> <span class="line" id="L231">};</span> <span class="line" id="L232"></span> <span class="line" id="L233"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> SignatureScheme = <span class="tok-kw">enum</span>(<span class="tok-type">u16</span>) {</span> <span class="line" id="L234"> <span class="tok-comment">// RSASSA-PKCS1-v1_5 algorithms</span> </span> <span class="line" id="L235"> rsa_pkcs1_sha256 = <span class="tok-number">0x0401</span>,</span> <span class="line" id="L236"> rsa_pkcs1_sha384 = <span class="tok-number">0x0501</span>,</span> <span class="line" id="L237"> rsa_pkcs1_sha512 = <span class="tok-number">0x0601</span>,</span> <span class="line" id="L238"></span> <span class="line" id="L239"> <span class="tok-comment">// ECDSA algorithms</span> </span> <span class="line" id="L240"> ecdsa_secp256r1_sha256 = <span class="tok-number">0x0403</span>,</span> <span class="line" id="L241"> ecdsa_secp384r1_sha384 = <span class="tok-number">0x0503</span>,</span> <span class="line" id="L242"> ecdsa_secp521r1_sha512 = <span class="tok-number">0x0603</span>,</span> <span class="line" id="L243"></span> <span class="line" id="L244"> <span class="tok-comment">// RSASSA-PSS algorithms with public key OID rsaEncryption</span> </span> <span class="line" id="L245"> rsa_pss_rsae_sha256 = <span class="tok-number">0x0804</span>,</span> <span class="line" id="L246"> rsa_pss_rsae_sha384 = <span class="tok-number">0x0805</span>,</span> <span class="line" id="L247"> rsa_pss_rsae_sha512 = <span class="tok-number">0x0806</span>,</span> <span class="line" id="L248"></span> <span class="line" id="L249"> <span class="tok-comment">// EdDSA algorithms</span> </span> <span class="line" id="L250"> ed25519 = <span class="tok-number">0x0807</span>,</span> <span class="line" id="L251"> ed448 = <span class="tok-number">0x0808</span>,</span> <span class="line" id="L252"></span> <span class="line" id="L253"> <span class="tok-comment">// RSASSA-PSS algorithms with public key OID RSASSA-PSS</span> </span> <span class="line" id="L254"> rsa_pss_pss_sha256 = <span class="tok-number">0x0809</span>,</span> <span class="line" id="L255"> rsa_pss_pss_sha384 = <span class="tok-number">0x080a</span>,</span> <span class="line" id="L256"> rsa_pss_pss_sha512 = <span class="tok-number">0x080b</span>,</span> <span class="line" id="L257"></span> <span class="line" id="L258"> <span class="tok-comment">// Legacy algorithms</span> </span> <span class="line" id="L259"> rsa_pkcs1_sha1 = <span class="tok-number">0x0201</span>,</span> <span class="line" id="L260"> ecdsa_sha1 = <span class="tok-number">0x0203</span>,</span> <span class="line" id="L261"></span> <span class="line" id="L262"> _,</span> <span class="line" id="L263">};</span> <span class="line" id="L264"></span> <span class="line" id="L265"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> NamedGroup = <span class="tok-kw">enum</span>(<span class="tok-type">u16</span>) {</span> <span class="line" id="L266"> <span class="tok-comment">// Elliptic Curve Groups (ECDHE)</span> </span> <span class="line" id="L267"> secp256r1 = <span class="tok-number">0x0017</span>,</span> <span class="line" id="L268"> secp384r1 = <span class="tok-number">0x0018</span>,</span> <span class="line" id="L269"> secp521r1 = <span class="tok-number">0x0019</span>,</span> <span class="line" id="L270"> x25519 = <span class="tok-number">0x001D</span>,</span> <span class="line" id="L271"> x448 = <span class="tok-number">0x001E</span>,</span> <span class="line" id="L272"></span> <span class="line" id="L273"> <span class="tok-comment">// Finite Field Groups (DHE)</span> </span> <span class="line" id="L274"> ffdhe2048 = <span class="tok-number">0x0100</span>,</span> <span class="line" id="L275"> ffdhe3072 = <span class="tok-number">0x0101</span>,</span> <span class="line" id="L276"> ffdhe4096 = <span class="tok-number">0x0102</span>,</span> <span class="line" id="L277"> ffdhe6144 = <span class="tok-number">0x0103</span>,</span> <span class="line" id="L278"> ffdhe8192 = <span class="tok-number">0x0104</span>,</span> <span class="line" id="L279"></span> <span class="line" id="L280"> <span class="tok-comment">// Hybrid post-quantum key agreements</span> </span> <span class="line" id="L281"> x25519_kyber512d00 = <span class="tok-number">0xFE30</span>,</span> <span class="line" id="L282"> x25519_kyber768d00 = <span class="tok-number">0x6399</span>,</span> <span class="line" id="L283"></span> <span class="line" id="L284"> _,</span> <span class="line" id="L285">};</span> <span class="line" id="L286"></span> <span class="line" id="L287"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> CipherSuite = <span class="tok-kw">enum</span>(<span class="tok-type">u16</span>) {</span> <span class="line" id="L288"> AES_128_GCM_SHA256 = <span class="tok-number">0x1301</span>,</span> <span class="line" id="L289"> AES_256_GCM_SHA384 = <span class="tok-number">0x1302</span>,</span> <span class="line" id="L290"> CHACHA20_POLY1305_SHA256 = <span class="tok-number">0x1303</span>,</span> <span class="line" id="L291"> AES_128_CCM_SHA256 = <span class="tok-number">0x1304</span>,</span> <span class="line" id="L292"> AES_128_CCM_8_SHA256 = <span class="tok-number">0x1305</span>,</span> <span class="line" id="L293"> AEGIS_256_SHA384 = <span class="tok-number">0x1306</span>,</span> <span class="line" id="L294"> AEGIS_128L_SHA256 = <span class="tok-number">0x1307</span>,</span> <span class="line" id="L295"> _,</span> <span class="line" id="L296">};</span> <span class="line" id="L297"></span> <span class="line" id="L298"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> CertificateType = <span class="tok-kw">enum</span>(<span class="tok-type">u8</span>) {</span> <span class="line" id="L299"> X509 = <span class="tok-number">0</span>,</span> <span class="line" id="L300"> RawPublicKey = <span class="tok-number">2</span>,</span> <span class="line" id="L301"> _,</span> <span class="line" id="L302">};</span> <span class="line" id="L303"></span> <span class="line" id="L304"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> KeyUpdateRequest = <span class="tok-kw">enum</span>(<span class="tok-type">u8</span>) {</span> <span class="line" id="L305"> update_not_requested = <span class="tok-number">0</span>,</span> <span class="line" id="L306"> update_requested = <span class="tok-number">1</span>,</span> <span class="line" id="L307"> _,</span> <span class="line" id="L308">};</span> <span class="line" id="L309"></span> <span class="line" id="L310"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">HandshakeCipherT</span>(<span class="tok-kw">comptime</span> AeadType: <span class="tok-type">type</span>, <span class="tok-kw">comptime</span> HashType: <span class="tok-type">type</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L311"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L312"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> AEAD = AeadType;</span> <span class="line" id="L313"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Hash = HashType;</span> <span class="line" id="L314"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Hmac = crypto.auth.hmac.Hmac(Hash);</span> <span class="line" id="L315"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Hkdf = crypto.kdf.hkdf.Hkdf(Hmac);</span> <span class="line" id="L316"></span> <span class="line" id="L317"> handshake_secret: [Hkdf.prk_length]<span class="tok-type">u8</span>,</span> <span class="line" id="L318"> master_secret: [Hkdf.prk_length]<span class="tok-type">u8</span>,</span> <span class="line" id="L319"> client_handshake_key: [AEAD.key_length]<span class="tok-type">u8</span>,</span> <span class="line" id="L320"> server_handshake_key: [AEAD.key_length]<span class="tok-type">u8</span>,</span> <span class="line" id="L321"> client_finished_key: [Hmac.key_length]<span class="tok-type">u8</span>,</span> <span class="line" id="L322"> server_finished_key: [Hmac.key_length]<span class="tok-type">u8</span>,</span> <span class="line" id="L323"> client_handshake_iv: [AEAD.nonce_length]<span class="tok-type">u8</span>,</span> <span class="line" id="L324"> server_handshake_iv: [AEAD.nonce_length]<span class="tok-type">u8</span>,</span> <span class="line" id="L325"> transcript_hash: Hash,</span> <span class="line" id="L326"> };</span> <span class="line" id="L327">}</span> <span class="line" id="L328"></span> <span class="line" id="L329"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> HandshakeCipher = <span class="tok-kw">union</span>(<span class="tok-kw">enum</span>) {</span> <span class="line" id="L330"> AES_128_GCM_SHA256: HandshakeCipherT(crypto.aead.aes_gcm.Aes128Gcm, crypto.hash.sha2.Sha256),</span> <span class="line" id="L331"> AES_256_GCM_SHA384: HandshakeCipherT(crypto.aead.aes_gcm.Aes256Gcm, crypto.hash.sha2.Sha384),</span> <span class="line" id="L332"> CHACHA20_POLY1305_SHA256: HandshakeCipherT(crypto.aead.chacha_poly.ChaCha20Poly1305, crypto.hash.sha2.Sha256),</span> <span class="line" id="L333"> AEGIS_256_SHA384: HandshakeCipherT(crypto.aead.aegis.Aegis256, crypto.hash.sha2.Sha384),</span> <span class="line" id="L334"> AEGIS_128L_SHA256: HandshakeCipherT(crypto.aead.aegis.Aegis128L, crypto.hash.sha2.Sha256),</span> <span class="line" id="L335">};</span> <span class="line" id="L336"></span> <span class="line" id="L337"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">ApplicationCipherT</span>(<span class="tok-kw">comptime</span> AeadType: <span class="tok-type">type</span>, <span class="tok-kw">comptime</span> HashType: <span class="tok-type">type</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L338"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L339"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> AEAD = AeadType;</span> <span class="line" id="L340"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Hash = HashType;</span> <span class="line" id="L341"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Hmac = crypto.auth.hmac.Hmac(Hash);</span> <span class="line" id="L342"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Hkdf = crypto.kdf.hkdf.Hkdf(Hmac);</span> <span class="line" id="L343"></span> <span class="line" id="L344"> client_secret: [Hash.digest_length]<span class="tok-type">u8</span>,</span> <span class="line" id="L345"> server_secret: [Hash.digest_length]<span class="tok-type">u8</span>,</span> <span class="line" id="L346"> client_key: [AEAD.key_length]<span class="tok-type">u8</span>,</span> <span class="line" id="L347"> server_key: [AEAD.key_length]<span class="tok-type">u8</span>,</span> <span class="line" id="L348"> client_iv: [AEAD.nonce_length]<span class="tok-type">u8</span>,</span> <span class="line" id="L349"> server_iv: [AEAD.nonce_length]<span class="tok-type">u8</span>,</span> <span class="line" id="L350"> };</span> <span class="line" id="L351">}</span> <span class="line" id="L352"></span> <span class="line" id="L353"><span class="tok-comment">/// Encryption parameters for application traffic.</span></span> <span class="line" id="L354"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> ApplicationCipher = <span class="tok-kw">union</span>(<span class="tok-kw">enum</span>) {</span> <span class="line" id="L355"> AES_128_GCM_SHA256: ApplicationCipherT(crypto.aead.aes_gcm.Aes128Gcm, crypto.hash.sha2.Sha256),</span> <span class="line" id="L356"> AES_256_GCM_SHA384: ApplicationCipherT(crypto.aead.aes_gcm.Aes256Gcm, crypto.hash.sha2.Sha384),</span> <span class="line" id="L357"> CHACHA20_POLY1305_SHA256: ApplicationCipherT(crypto.aead.chacha_poly.ChaCha20Poly1305, crypto.hash.sha2.Sha256),</span> <span class="line" id="L358"> AEGIS_256_SHA384: ApplicationCipherT(crypto.aead.aegis.Aegis256, crypto.hash.sha2.Sha384),</span> <span class="line" id="L359"> AEGIS_128L_SHA256: ApplicationCipherT(crypto.aead.aegis.Aegis128L, crypto.hash.sha2.Sha256),</span> <span class="line" id="L360">};</span> <span class="line" id="L361"></span> <span class="line" id="L362"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">hkdfExpandLabel</span>(</span> <span class="line" id="L363"> <span class="tok-kw">comptime</span> Hkdf: <span class="tok-type">type</span>,</span> <span class="line" id="L364"> key: [Hkdf.prk_length]<span class="tok-type">u8</span>,</span> <span class="line" id="L365"> label: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L366"> context: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L367"> <span class="tok-kw">comptime</span> len: <span class="tok-type">usize</span>,</span> <span class="line" id="L368">) [len]<span class="tok-type">u8</span> {</span> <span class="line" id="L369"> <span class="tok-kw">const</span> max_label_len = <span class="tok-number">255</span>;</span> <span class="line" id="L370"> <span class="tok-kw">const</span> max_context_len = <span class="tok-number">255</span>;</span> <span class="line" id="L371"> <span class="tok-kw">const</span> tls13 = <span class="tok-str">"tls13 "</span>;</span> <span class="line" id="L372"> <span class="tok-kw">var</span> buf: [<span class="tok-number">2</span> + <span class="tok-number">1</span> + tls13.len + max_label_len + <span class="tok-number">1</span> + max_context_len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L373"> mem.writeIntBig(<span class="tok-type">u16</span>, buf[<span class="tok-number">0</span>..<span class="tok-number">2</span>], len);</span> <span class="line" id="L374"> buf[<span class="tok-number">2</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>(tls13.len + label.len));</span> <span class="line" id="L375"> buf[<span class="tok-number">3</span>..][<span class="tok-number">0</span>..tls13.len].* = tls13.;</span> <span class="line" id="L376"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">3</span> + tls13.len;</span> <span class="line" id="L377"> <span class="tok-builtin">@memcpy</span>(buf[i..][<span class="tok-number">0</span>..label.len], label);</span> <span class="line" id="L378"> i += label.len;</span> <span class="line" id="L379"> buf[i] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>(context.len));</span> <span class="line" id="L380"> i += <span class="tok-number">1</span>;</span> <span class="line" id="L381"> <span class="tok-builtin">@memcpy</span>(buf[i..][<span class="tok-number">0</span>..context.len], context);</span> <span class="line" id="L382"> i += context.len;</span> <span class="line" id="L383"></span> <span class="line" id="L384"> <span class="tok-kw">var</span> result: [len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L385"> Hkdf.expand(&result, buf[<span class="tok-number">0</span>..i], key);</span> <span class="line" id="L386"> <span class="tok-kw">return</span> result;</span> <span class="line" id="L387">}</span> <span class="line" id="L388"></span> <span class="line" id="L389"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">emptyHash</span>(<span class="tok-kw">comptime</span> Hash: <span class="tok-type">type</span>) [Hash.digest_length]<span class="tok-type">u8</span> {</span> <span class="line" id="L390"> <span class="tok-kw">var</span> result: [Hash.digest_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L391"> Hash.hash(&.{}, &result, .{});</span> <span class="line" id="L392"> <span class="tok-kw">return</span> result;</span> <span class="line" id="L393">}</span> <span class="line" id="L394"></span> <span class="line" id="L395"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">hmac</span>(<span class="tok-kw">comptime</span> Hmac: <span class="tok-type">type</span>, message: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, key: [Hmac.key_length]<span class="tok-type">u8</span>) [Hmac.mac_length]<span class="tok-type">u8</span> {</span> <span class="line" id="L396"> <span class="tok-kw">var</span> result: [Hmac.mac_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L397"> Hmac.create(&result, message, &key);</span> <span class="line" id="L398"> <span class="tok-kw">return</span> result;</span> <span class="line" id="L399">}</span> <span class="line" id="L400"></span> <span class="line" id="L401"><span class="tok-kw">pub</span> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">extension</span>(<span class="tok-kw">comptime</span> et: ExtensionType, bytes: <span class="tok-kw">anytype</span>) [<span class="tok-number">2</span> + <span class="tok-number">2</span> + bytes.len]<span class="tok-type">u8</span> {</span> <span class="line" id="L402"> <span class="tok-kw">return</span> int2(<span class="tok-builtin">@intFromEnum</span>(et)) ++ array(<span class="tok-number">1</span>, bytes);</span> <span class="line" id="L403">}</span> <span class="line" id="L404"></span> <span class="line" id="L405"><span class="tok-kw">pub</span> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">array</span>(<span class="tok-kw">comptime</span> elem_size: <span class="tok-type">comptime_int</span>, bytes: <span class="tok-kw">anytype</span>) [<span class="tok-number">2</span> + bytes.len]<span class="tok-type">u8</span> {</span> <span class="line" id="L406"> <span class="tok-kw">comptime</span> assert(bytes.len % elem_size == <span class="tok-number">0</span>);</span> <span class="line" id="L407"> <span class="tok-kw">return</span> int2(bytes.len) ++ bytes;</span> <span class="line" id="L408">}</span> <span class="line" id="L409"></span> <span class="line" id="L410"><span class="tok-kw">pub</span> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">enum_array</span>(<span class="tok-kw">comptime</span> E: <span class="tok-type">type</span>, <span class="tok-kw">comptime</span> tags: []<span class="tok-kw">const</span> E) [<span class="tok-number">2</span> + <span class="tok-builtin">@sizeOf</span>(E) tags.len]<span class="tok-type">u8</span> {</span> <span class="line" id="L411"> assert(<span class="tok-builtin">@sizeOf</span>(E) == <span class="tok-number">2</span>);</span> <span class="line" id="L412"> <span class="tok-kw">var</span> result: [tags.len * <span class="tok-number">2</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L413"> <span class="tok-kw">for</span> (tags, <span class="tok-number">0</span>..) \|elem, i\| {</span> <span class="line" id="L414"> result[i * <span class="tok-number">2</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>(<span class="tok-builtin">@intFromEnum</span>(elem) >> <span class="tok-number">8</span>));</span> <span class="line" id="L415"> result[i * <span class="tok-number">2</span> + <span class="tok-number">1</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>(<span class="tok-builtin">@intFromEnum</span>(elem)));</span> <span class="line" id="L416"> }</span> <span class="line" id="L417"> <span class="tok-kw">return</span> array(<span class="tok-number">2</span>, result);</span> <span class="line" id="L418">}</span> <span class="line" id="L419"></span> <span class="line" id="L420"><span class="tok-kw">pub</span> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">int2</span>(x: <span class="tok-type">u16</span>) [<span class="tok-number">2</span>]<span class="tok-type">u8</span> {</span> <span class="line" id="L421"> <span class="tok-kw">return</span> .{</span> <span class="line" id="L422"> <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>(x >> <span class="tok-number">8</span>)),</span> <span class="line" id="L423"> <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>(x)),</span> <span class="line" id="L424"> };</span> <span class="line" id="L425">}</span> <span class="line" id="L426"></span> <span class="line" id="L427"><span class="tok-kw">pub</span> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">int3</span>(x: <span class="tok-type">u24</span>) [<span class="tok-number">3</span>]<span class="tok-type">u8</span> {</span> <span class="line" id="L428"> <span class="tok-kw">return</span> .{</span> <span class="line" id="L429"> <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>(x >> <span class="tok-number">16</span>)),</span> <span class="line" id="L430"> <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>(x >> <span class="tok-number">8</span>)),</span> <span class="line" id="L431"> <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>(x)),</span> <span class="line" id="L432"> };</span> <span class="line" id="L433">}</span> <span class="line" id="L434"></span> <span class="line" id="L435"><span class="tok-comment">/// An abstraction to ensure that protocol-parsing code does not perform an</span></span> <span class="line" id="L436"><span class="tok-comment">/// out-of-bounds read.</span></span> <span class="line" id="L437"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Decoder = <span class="tok-kw">struct</span> {</span> <span class="line" id="L438"> buf: []<span class="tok-type">u8</span>,</span> <span class="line" id="L439"> <span class="tok-comment">/// Points to the next byte in buffer that will be decoded.</span></span> <span class="line" id="L440"> idx: <span class="tok-type">usize</span> = <span class="tok-number">0</span>,</span> <span class="line" id="L441"> <span class="tok-comment">/// Up to this point in `buf` we have already checked that `cap` is greater than it.</span></span> <span class="line" id="L442"> our_end: <span class="tok-type">usize</span> = <span class="tok-number">0</span>,</span> <span class="line" id="L443"> <span class="tok-comment">/// Beyond this point in `buf` is extra tag-along bytes beyond the amount we</span></span> <span class="line" id="L444"> <span class="tok-comment">/// requested with `readAtLeast`.</span></span> <span class="line" id="L445"> their_end: <span class="tok-type">usize</span> = <span class="tok-number">0</span>,</span> <span class="line" id="L446"> <span class="tok-comment">/// Points to the end within buffer that has been filled. Beyond this point</span></span> <span class="line" id="L447"> <span class="tok-comment">/// in buf is undefined bytes.</span></span> <span class="line" id="L448"> cap: <span class="tok-type">usize</span> = <span class="tok-number">0</span>,</span> <span class="line" id="L449"> <span class="tok-comment">/// Debug helper to prevent illegal calls to read functions.</span></span> <span class="line" id="L450"> disable_reads: <span class="tok-type">bool</span> = <span class="tok-null">false</span>,</span> <span class="line" id="L451"></span> <span class="line" id="L452"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromTheirSlice</span>(buf: []<span class="tok-type">u8</span>) Decoder {</span> <span class="line" id="L453"> <span class="tok-kw">return</span> .{</span> <span class="line" id="L454"> .buf = buf,</span> <span class="line" id="L455"> .their_end = buf.len,</span> <span class="line" id="L456"> .cap = buf.len,</span> <span class="line" id="L457"> .disable_reads = <span class="tok-null">true</span>,</span> <span class="line" id="L458"> };</span> <span class="line" id="L459"> }</span> <span class="line" id="L460"></span> <span class="line" id="L461"> <span class="tok-comment">/// Use this function to increase `their_end`.</span></span> <span class="line" id="L462"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">readAtLeast</span>(d: Decoder, stream: <span class="tok-kw">anytype</span>, their_amt: <span class="tok-type">usize</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L463"> assert(!d.disable_reads);</span> <span class="line" id="L464"> <span class="tok-kw">const</span> existing_amt = d.cap - d.idx;</span> <span class="line" id="L465"> d.their_end = d.idx + their_amt;</span> <span class="line" id="L466"> <span class="tok-kw">if</span> (their_amt <= existing_amt) <span class="tok-kw">return</span>;</span> <span class="line" id="L467"> <span class="tok-kw">const</span> request_amt = their_amt - existing_amt;</span> <span class="line" id="L468"> <span class="tok-kw">const</span> dest = d.buf[d.cap..];</span> <span class="line" id="L469"> <span class="tok-kw">if</span> (request_amt > dest.len) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsRecordOverflow;</span> <span class="line" id="L470"> <span class="tok-kw">const</span> actual_amt = <span class="tok-kw">try</span> stream.readAtLeast(dest, request_amt);</span> <span class="line" id="L471"> <span class="tok-kw">if</span> (actual_amt < request_amt) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsConnectionTruncated;</span> <span class="line" id="L472"> d.cap += actual_amt;</span> <span class="line" id="L473"> }</span> <span class="line" id="L474"></span> <span class="line" id="L475"> <span class="tok-comment">/// Same as `readAtLeast` but also increases `our_end` by exactly `our_amt`.</span></span> <span class="line" id="L476"> <span class="tok-comment">/// Use when `our_amt` is calculated by us, not by them.</span></span> <span class="line" id="L477"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">readAtLeastOurAmt</span>(d: Decoder, stream: <span class="tok-kw">anytype</span>, our_amt: <span class="tok-type">usize</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L478"> assert(!d.disable_reads);</span> <span class="line" id="L479"> <span class="tok-kw">try</span> readAtLeast(d, stream, our_amt);</span> <span class="line" id="L480"> d.our_end = d.idx + our_amt;</span> <span class="line" id="L481"> }</span> <span class="line" id="L482"></span> <span class="line" id="L483"> <span class="tok-comment">/// Use this function to increase `our_end`.</span></span> <span class="line" id="L484"> <span class="tok-comment">/// This should always be called with an amount provided by us, not them.</span></span> <span class="line" id="L485"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">ensure</span>(d: Decoder, amt: <span class="tok-type">usize</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L486"> d.our_end = <span class="tok-builtin">@max</span>(d.idx + amt, d.our_end);</span> <span class="line" id="L487"> <span class="tok-kw">if</span> (d.our_end > d.their_end) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsDecodeError;</span> <span class="line" id="L488"> }</span> <span class="line" id="L489"></span> <span class="line" id="L490"> <span class="tok-comment">/// Use this function to increase `idx`.</span></span> <span class="line" id="L491"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">decode</span>(d: Decoder, <span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>) T {</span> <span class="line" id="L492"> <span class="tok-kw">switch</span> (<span class="tok-builtin">@typeInfo</span>(T)) {</span> <span class="line" id="L493"> .Int => \|info\| <span class="tok-kw">switch</span> (info.bits) {</span> <span class="line" id="L494"> <span class="tok-number">8</span> => {</span> <span class="line" id="L495"> skip(d, <span class="tok-number">1</span>);</span> <span class="line" id="L496"> <span class="tok-kw">return</span> d.buf[d.idx - <span class="tok-number">1</span>];</span> <span class="line" id="L497"> },</span> <span class="line" id="L498"> <span class="tok-number">16</span> => {</span> <span class="line" id="L499"> skip(d, <span class="tok-number">2</span>);</span> <span class="line" id="L500"> <span class="tok-kw">const</span> b0: <span class="tok-type">u16</span> = d.buf[d.idx - <span class="tok-number">2</span>];</span> <span class="line" id="L501"> <span class="tok-kw">const</span> b1: <span class="tok-type">u16</span> = d.buf[d.idx - <span class="tok-number">1</span>];</span> <span class="line" id="L502"> <span class="tok-kw">return</span> (b0 << <span class="tok-number">8</span>) \| b1;</span> <span class="line" id="L503"> },</span> <span class="line" id="L504"> <span class="tok-number">24</span> => {</span> <span class="line" id="L505"> skip(d, <span class="tok-number">3</span>);</span> <span class="line" id="L506"> <span class="tok-kw">const</span> b0: <span class="tok-type">u24</span> = d.buf[d.idx - <span class="tok-number">3</span>];</span> <span class="line" id="L507"> <span class="tok-kw">const</span> b1: <span class="tok-type">u24</span> = d.buf[d.idx - <span class="tok-number">2</span>];</span> <span class="line" id="L508"> <span class="tok-kw">const</span> b2: <span class="tok-type">u24</span> = d.buf[d.idx - <span class="tok-number">1</span>];</span> <span class="line" id="L509"> <span class="tok-kw">return</span> (b0 << <span class="tok-number">16</span>) \| (b1 << <span class="tok-number">8</span>) \| b2;</span> <span class="line" id="L510"> },</span> <span class="line" id="L511"> <span class="tok-kw">else</span> => <span class="tok-builtin">@compileError</span>(<span class="tok-str">"unsupported int type: "</span> ++ <span class="tok-builtin">@typeName</span>(T)),</span> <span class="line" id="L512"> },</span> <span class="line" id="L513"> .Enum => \|info\| {</span> <span class="line" id="L514"> <span class="tok-kw">const</span> int = d.decode(info.tag_type);</span> <span class="line" id="L515"> <span class="tok-kw">if</span> (info.is_exhaustive) <span class="tok-builtin">@compileError</span>(<span class="tok-str">"exhaustive enum cannot be used"</span>);</span> <span class="line" id="L516"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(T, <span class="tok-builtin">@enumFromInt</span>(int));</span> <span class="line" id="L517"> },</span> <span class="line" id="L518"> <span class="tok-kw">else</span> => <span class="tok-builtin">@compileError</span>(<span class="tok-str">"unsupported type: "</span> ++ <span class="tok-builtin">@typeName</span>(T)),</span> <span class="line" id="L519"> }</span> <span class="line" id="L520"> }</span> <span class="line" id="L521"></span> <span class="line" id="L522"> <span class="tok-comment">/// Use this function to increase `idx`.</span></span> <span class="line" id="L523"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">array</span>(d: Decoder, <span class="tok-kw">comptime</span> len: <span class="tok-type">usize</span>) [len]<span class="tok-type">u8</span> {</span> <span class="line" id="L524"> skip(d, len);</span> <span class="line" id="L525"> <span class="tok-kw">return</span> d.buf[d.idx - len ..][<span class="tok-number">0</span>..len];</span> <span class="line" id="L526"> }</span> <span class="line" id="L527"></span> <span class="line" id="L528"> <span class="tok-comment">/// Use this function to increase `idx`.</span></span> <span class="line" id="L529"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">slice</span>(d: Decoder, len: <span class="tok-type">usize</span>) []<span class="tok-type">u8</span> {</span> <span class="line" id="L530"> skip(d, len);</span> <span class="line" id="L531"> <span class="tok-kw">return</span> d.buf[d.idx - len ..][<span class="tok-number">0</span>..len];</span> <span class="line" id="L532"> }</span> <span class="line" id="L533"></span> <span class="line" id="L534"> <span class="tok-comment">/// Use this function to increase `idx`.</span></span> <span class="line" id="L535"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">skip</span>(d: Decoder, amt: <span class="tok-type">usize</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L536"> d.idx += amt;</span> <span class="line" id="L537"> assert(d.idx <= d.our_end); <span class="tok-comment">// insufficient ensured bytes</span> </span> <span class="line" id="L538"> }</span> <span class="line" id="L539"></span> <span class="line" id="L540"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">eof</span>(d: Decoder) <span class="tok-type">bool</span> {</span> <span class="line" id="L541"> assert(d.our_end <= d.their_end);</span> <span class="line" id="L542"> assert(d.idx <= d.our_end);</span> <span class="line" id="L543"> <span class="tok-kw">return</span> d.idx == d.their_end;</span> <span class="line" id="L544"> }</span> <span class="line" id="L545"></span> <span class="line" id="L546"> <span class="tok-comment">/// Provide the length they claim, and receive a sub-decoder specific to that slice.</span></span> <span class="line" id="L547"> <span class="tok-comment">/// The parent decoder is advanced to the end.</span></span> <span class="line" id="L548"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">sub</span>(d: *Decoder, their_len: <span class="tok-type">usize</span>) !Decoder {</span> <span class="line" id="L549"> <span class="tok-kw">const</span> end = d.idx + their_len;</span> <span class="line" id="L550"> <span class="tok-kw">if</span> (end > d.their_end) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsDecodeError;</span> <span class="line" id="L551"> <span class="tok-kw">const</span> sub_buf = d.buf[d.idx..end];</span> <span class="line" id="L552"> d.idx = end;</span> <span class="line" id="L553"> d.our_end = end;</span> <span class="line" id="L554"> <span class="tok-kw">return</span> fromTheirSlice(sub_buf);</span> <span class="line" id="L555"> }</span> <span class="line" id="L556"></span> <span class="line" id="L557"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">rest</span>(d: Decoder) []<span class="tok-type">u8</span> {</span> <span class="line" id="L558"> <span class="tok-kw">return</span> d.buf[d.idx..d.cap];</span> <span class="line" id="L559"> }</span> <span class="line" id="L560">};</span> <span class="line" id="L561"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/crypto/aes_gcm.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/aes_gcm.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> assert = std.debug.assert;</span> <span class="line" id="L3"><span class="tok-kw">const</span> crypto = std.crypto;</span> <span class="line" id="L4"><span class="tok-kw">const</span> debug = std.debug;</span> <span class="line" id="L5"><span class="tok-kw">const</span> Ghash = std.crypto.onetimeauth.Ghash;</span> <span class="line" id="L6"><span class="tok-kw">const</span> math = std.math;</span> <span class="line" id="L7"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L8"><span class="tok-kw">const</span> modes = crypto.core.modes;</span> <span class="line" id="L9"><span class="tok-kw">const</span> AuthenticationError = crypto.errors.AuthenticationError;</span> <span class="line" id="L10"></span> <span class="line" id="L11"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Aes128Gcm = AesGcm(crypto.core.aes.Aes128);</span> <span class="line" id="L12"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Aes256Gcm = AesGcm(crypto.core.aes.Aes256);</span> <span class="line" id="L13"></span> <span class="line" id="L14"><span class="tok-kw">fn</span> <span class="tok-fn">AesGcm</span>(<span class="tok-kw">comptime</span> Aes: <span class="tok-kw">anytype</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L15"> debug.assert(Aes.block.block_length == <span class="tok-number">16</span>);</span> <span class="line" id="L16"></span> <span class="line" id="L17"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L18"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> tag_length = <span class="tok-number">16</span>;</span> <span class="line" id="L19"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> nonce_length = <span class="tok-number">12</span>;</span> <span class="line" id="L20"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> key_length = Aes.key_bits / <span class="tok-number">8</span>;</span> <span class="line" id="L21"></span> <span class="line" id="L22"> <span class="tok-kw">const</span> zeros = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} ** <span class="tok-number">16</span>;</span> <span class="line" id="L23"></span> <span class="line" id="L24"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">encrypt</span>(c: []<span class="tok-type">u8</span>, tag: [tag_length]<span class="tok-type">u8</span>, m: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, ad: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, npub: [nonce_length]<span class="tok-type">u8</span>, key: [key_length]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L25"> debug.assert(c.len == m.len);</span> <span class="line" id="L26"> debug.assert(m.len <= <span class="tok-number">16</span> ((<span class="tok-number">1</span> << <span class="tok-number">32</span>) - <span class="tok-number">2</span>));</span> <span class="line" id="L27"></span> <span class="line" id="L28"> <span class="tok-kw">const</span> aes = Aes.initEnc(key);</span> <span class="line" id="L29"> <span class="tok-kw">var</span> h: [<span class="tok-number">16</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L30"> aes.encrypt(&h, &zeros);</span> <span class="line" id="L31"></span> <span class="line" id="L32"> <span class="tok-kw">var</span> t: [<span class="tok-number">16</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L33"> <span class="tok-kw">var</span> j: [<span class="tok-number">16</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L34"> j[<span class="tok-number">0</span>..nonce_length].* = npub;</span> <span class="line" id="L35"> mem.writeIntBig(<span class="tok-type">u32</span>, j[nonce_length..][<span class="tok-number">0</span>..<span class="tok-number">4</span>], <span class="tok-number">1</span>);</span> <span class="line" id="L36"> aes.encrypt(&t, &j);</span> <span class="line" id="L37"></span> <span class="line" id="L38"> <span class="tok-kw">const</span> block_count = (math.divCeil(<span class="tok-type">usize</span>, ad.len, Ghash.block_length) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>) + (math.divCeil(<span class="tok-type">usize</span>, c.len, Ghash.block_length) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>) + <span class="tok-number">1</span>;</span> <span class="line" id="L39"> <span class="tok-kw">var</span> mac = Ghash.initForBlockCount(&h, block_count);</span> <span class="line" id="L40"> mac.update(ad);</span> <span class="line" id="L41"> mac.pad();</span> <span class="line" id="L42"></span> <span class="line" id="L43"> mem.writeIntBig(<span class="tok-type">u32</span>, j[nonce_length..][<span class="tok-number">0</span>..<span class="tok-number">4</span>], <span class="tok-number">2</span>);</span> <span class="line" id="L44"> modes.ctr(<span class="tok-builtin">@TypeOf</span>(aes), aes, c, m, j, std.builtin.Endian.Big);</span> <span class="line" id="L45"> mac.update(c[<span class="tok-number">0</span>..m.len][<span class="tok-number">0</span>..]);</span> <span class="line" id="L46"> mac.pad();</span> <span class="line" id="L47"></span> <span class="line" id="L48"> <span class="tok-kw">var</span> final_block = h;</span> <span class="line" id="L49"> mem.writeIntBig(<span class="tok-type">u64</span>, final_block[<span class="tok-number">0</span>..<span class="tok-number">8</span>], ad.len * <span class="tok-number">8</span>);</span> <span class="line" id="L50"> mem.writeIntBig(<span class="tok-type">u64</span>, final_block[<span class="tok-number">8</span>..<span class="tok-number">16</span>], m.len * <span class="tok-number">8</span>);</span> <span class="line" id="L51"> mac.update(&final_block);</span> <span class="line" id="L52"> mac.final(tag);</span> <span class="line" id="L53"> <span class="tok-kw">for</span> (t, <span class="tok-number">0</span>..) \|x, i\| {</span> <span class="line" id="L54"> tag[i] ^= x;</span> <span class="line" id="L55"> }</span> <span class="line" id="L56"> }</span> <span class="line" id="L57"></span> <span class="line" id="L58"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">decrypt</span>(m: []<span class="tok-type">u8</span>, c: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, tag: [tag_length]<span class="tok-type">u8</span>, ad: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, npub: [nonce_length]<span class="tok-type">u8</span>, key: [key_length]<span class="tok-type">u8</span>) AuthenticationError!<span class="tok-type">void</span> {</span> <span class="line" id="L59"> assert(c.len == m.len);</span> <span class="line" id="L60"></span> <span class="line" id="L61"> <span class="tok-kw">const</span> aes = Aes.initEnc(key);</span> <span class="line" id="L62"> <span class="tok-kw">var</span> h: [<span class="tok-number">16</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L63"> aes.encrypt(&h, &zeros);</span> <span class="line" id="L64"></span> <span class="line" id="L65"> <span class="tok-kw">var</span> t: [<span class="tok-number">16</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L66"> <span class="tok-kw">var</span> j: [<span class="tok-number">16</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L67"> j[<span class="tok-number">0</span>..nonce_length].* = npub;</span> <span class="line" id="L68"> mem.writeIntBig(<span class="tok-type">u32</span>, j[nonce_length..][<span class="tok-number">0</span>..<span class="tok-number">4</span>], <span class="tok-number">1</span>);</span> <span class="line" id="L69"> aes.encrypt(&t, &j);</span> <span class="line" id="L70"></span> <span class="line" id="L71"> <span class="tok-kw">const</span> block_count = (math.divCeil(<span class="tok-type">usize</span>, ad.len, Ghash.block_length) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>) + (math.divCeil(<span class="tok-type">usize</span>, c.len, Ghash.block_length) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>) + <span class="tok-number">1</span>;</span> <span class="line" id="L72"> <span class="tok-kw">var</span> mac = Ghash.initForBlockCount(&h, block_count);</span> <span class="line" id="L73"> mac.update(ad);</span> <span class="line" id="L74"> mac.pad();</span> <span class="line" id="L75"></span> <span class="line" id="L76"> mac.update(c);</span> <span class="line" id="L77"> mac.pad();</span> <span class="line" id="L78"></span> <span class="line" id="L79"> <span class="tok-kw">var</span> final_block = h;</span> <span class="line" id="L80"> mem.writeIntBig(<span class="tok-type">u64</span>, final_block[<span class="tok-number">0</span>..<span class="tok-number">8</span>], ad.len * <span class="tok-number">8</span>);</span> <span class="line" id="L81"> mem.writeIntBig(<span class="tok-type">u64</span>, final_block[<span class="tok-number">8</span>..<span class="tok-number">16</span>], m.len * <span class="tok-number">8</span>);</span> <span class="line" id="L82"> mac.update(&final_block);</span> <span class="line" id="L83"> <span class="tok-kw">var</span> computed_tag: [Ghash.mac_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L84"> mac.final(&computed_tag);</span> <span class="line" id="L85"> <span class="tok-kw">for</span> (t, <span class="tok-number">0</span>..) \|x, i\| {</span> <span class="line" id="L86"> computed_tag[i] ^= x;</span> <span class="line" id="L87"> }</span> <span class="line" id="L88"></span> <span class="line" id="L89"> <span class="tok-kw">var</span> acc: <span class="tok-type">u8</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L90"> <span class="tok-kw">for</span> (computed_tag, <span class="tok-number">0</span>..) \|_, p\| {</span> <span class="line" id="L91"> acc \|= (computed_tag[p] ^ tag[p]);</span> <span class="line" id="L92"> }</span> <span class="line" id="L93"> <span class="tok-kw">if</span> (acc != <span class="tok-number">0</span>) {</span> <span class="line" id="L94"> <span class="tok-builtin">@memset</span>(m, <span class="tok-null">undefined</span>);</span> <span class="line" id="L95"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.AuthenticationFailed;</span> <span class="line" id="L96"> }</span> <span class="line" id="L97"></span> <span class="line" id="L98"> mem.writeIntBig(<span class="tok-type">u32</span>, j[nonce_length..][<span class="tok-number">0</span>..<span class="tok-number">4</span>], <span class="tok-number">2</span>);</span> <span class="line" id="L99"> modes.ctr(<span class="tok-builtin">@TypeOf</span>(aes), aes, m, c, j, std.builtin.Endian.Big);</span> <span class="line" id="L100"> }</span> <span class="line" id="L101"> };</span> <span class="line" id="L102">}</span> <span class="line" id="L103"></span> <span class="line" id="L104"><span class="tok-kw">const</span> htest = <span class="tok-builtin">@import</span>(<span class="tok-str">"test.zig"</span>);</span> <span class="line" id="L105"><span class="tok-kw">const</span> testing = std.testing;</span> <span class="line" id="L106"></span> <span class="line" id="L107"><span class="tok-kw">test</span> <span class="tok-str">"Aes256Gcm - Empty message and no associated data"</span> {</span> <span class="line" id="L108"> <span class="tok-kw">const</span> key: [Aes256Gcm.key_length]<span class="tok-type">u8</span> = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x69</span>} Aes256Gcm.key_length;</span> <span class="line" id="L109"> <span class="tok-kw">const</span> nonce: [Aes256Gcm.nonce_length]<span class="tok-type">u8</span> = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x42</span>} Aes256Gcm.nonce_length;</span> <span class="line" id="L110"> <span class="tok-kw">const</span> ad = <span class="tok-str">""</span>;</span> <span class="line" id="L111"> <span class="tok-kw">const</span> m = <span class="tok-str">""</span>;</span> <span class="line" id="L112"> <span class="tok-kw">var</span> c: [m.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L113"> <span class="tok-kw">var</span> tag: [Aes256Gcm.tag_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L114"></span> <span class="line" id="L115"> Aes256Gcm.encrypt(&c, &tag, m, ad, nonce, key);</span> <span class="line" id="L116"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"6b6ff610a16fa4cd59f1fb7903154e92"</span>, &tag);</span> <span class="line" id="L117">}</span> <span class="line" id="L118"></span> <span class="line" id="L119"><span class="tok-kw">test</span> <span class="tok-str">"Aes256Gcm - Associated data only"</span> {</span> <span class="line" id="L120"> <span class="tok-kw">const</span> key: [Aes256Gcm.key_length]<span class="tok-type">u8</span> = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x69</span>} Aes256Gcm.key_length;</span> <span class="line" id="L121"> <span class="tok-kw">const</span> nonce: [Aes256Gcm.nonce_length]<span class="tok-type">u8</span> = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x42</span>} Aes256Gcm.nonce_length;</span> <span class="line" id="L122"> <span class="tok-kw">const</span> m = <span class="tok-str">""</span>;</span> <span class="line" id="L123"> <span class="tok-kw">const</span> ad = <span class="tok-str">"Test with associated data"</span>;</span> <span class="line" id="L124"> <span class="tok-kw">var</span> c: [m.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L125"> <span class="tok-kw">var</span> tag: [Aes256Gcm.tag_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L126"></span> <span class="line" id="L127"> Aes256Gcm.encrypt(&c, &tag, m, ad, nonce, key);</span> <span class="line" id="L128"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"262ed164c2dfb26e080a9d108dd9dd4c"</span>, &tag);</span> <span class="line" id="L129">}</span> <span class="line" id="L130"></span> <span class="line" id="L131"><span class="tok-kw">test</span> <span class="tok-str">"Aes256Gcm - Message only"</span> {</span> <span class="line" id="L132"> <span class="tok-kw">const</span> key: [Aes256Gcm.key_length]<span class="tok-type">u8</span> = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x69</span>} Aes256Gcm.key_length;</span> <span class="line" id="L133"> <span class="tok-kw">const</span> nonce: [Aes256Gcm.nonce_length]<span class="tok-type">u8</span> = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x42</span>} Aes256Gcm.nonce_length;</span> <span class="line" id="L134"> <span class="tok-kw">const</span> m = <span class="tok-str">"Test with message only"</span>;</span> <span class="line" id="L135"> <span class="tok-kw">const</span> ad = <span class="tok-str">""</span>;</span> <span class="line" id="L136"> <span class="tok-kw">var</span> c: [m.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L137"> <span class="tok-kw">var</span> m2: [m.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L138"> <span class="tok-kw">var</span> tag: [Aes256Gcm.tag_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L139"></span> <span class="line" id="L140"> Aes256Gcm.encrypt(&c, &tag, m, ad, nonce, key);</span> <span class="line" id="L141"> <span class="tok-kw">try</span> Aes256Gcm.decrypt(&m2, &c, tag, ad, nonce, key);</span> <span class="line" id="L142"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, m[<span class="tok-number">0</span>..], m2[<span class="tok-number">0</span>..]);</span> <span class="line" id="L143"></span> <span class="line" id="L144"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"5ca1642d90009fea33d01f78cf6eefaf01d539472f7c"</span>, &c);</span> <span class="line" id="L145"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"07cd7fc9103e2f9e9bf2dfaa319caff4"</span>, &tag);</span> <span class="line" id="L146">}</span> <span class="line" id="L147"></span> <span class="line" id="L148"><span class="tok-kw">test</span> <span class="tok-str">"Aes256Gcm - Message and associated data"</span> {</span> <span class="line" id="L149"> <span class="tok-kw">const</span> key: [Aes256Gcm.key_length]<span class="tok-type">u8</span> = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x69</span>} Aes256Gcm.key_length;</span> <span class="line" id="L150"> <span class="tok-kw">const</span> nonce: [Aes256Gcm.nonce_length]<span class="tok-type">u8</span> = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x42</span>} Aes256Gcm.nonce_length;</span> <span class="line" id="L151"> <span class="tok-kw">const</span> m = <span class="tok-str">"Test with message"</span>;</span> <span class="line" id="L152"> <span class="tok-kw">const</span> ad = <span class="tok-str">"Test with associated data"</span>;</span> <span class="line" id="L153"> <span class="tok-kw">var</span> c: [m.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L154"> <span class="tok-kw">var</span> m2: [m.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L155"> <span class="tok-kw">var</span> tag: [Aes256Gcm.tag_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L156"></span> <span class="line" id="L157"> Aes256Gcm.encrypt(&c, &tag, m, ad, nonce, key);</span> <span class="line" id="L158"> <span class="tok-kw">try</span> Aes256Gcm.decrypt(&m2, &c, tag, ad, nonce, key);</span> <span class="line" id="L159"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, m[<span class="tok-number">0</span>..], m2[<span class="tok-number">0</span>..]);</span> <span class="line" id="L160"></span> <span class="line" id="L161"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"5ca1642d90009fea33d01f78cf6eefaf01"</span>, &c);</span> <span class="line" id="L162"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"64accec679d444e2373bd9f6796c0d2c"</span>, &tag);</span> <span class="line" id="L163">}</span> <span class="line" id="L164"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/crypto/cmac.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/cmac.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> crypto = std.crypto;</span> <span class="line" id="L3"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L4"></span> <span class="line" id="L5"><span class="tok-comment">/// CMAC with AES-128 - RFC 4493 https://www.rfc-editor.org/rfc/rfc4493</span></span> <span class="line" id="L6"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> CmacAes128 = Cmac(crypto.core.aes.Aes128);</span> <span class="line" id="L7"></span> <span class="line" id="L8"><span class="tok-comment">/// NIST Special Publication 800-38B - The CMAC Mode for Authentication</span></span> <span class="line" id="L9"><span class="tok-comment">/// https://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-38b.pdf</span></span> <span class="line" id="L10"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">Cmac</span>(<span class="tok-kw">comptime</span> BlockCipher: <span class="tok-type">type</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L11"> <span class="tok-kw">const</span> BlockCipherCtx = <span class="tok-builtin">@typeInfo</span>(<span class="tok-builtin">@TypeOf</span>(BlockCipher.initEnc)).Fn.return_type.?;</span> <span class="line" id="L12"> <span class="tok-kw">const</span> Block = [BlockCipher.block.block_length]<span class="tok-type">u8</span>;</span> <span class="line" id="L13"></span> <span class="line" id="L14"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L15"> <span class="tok-kw">const</span> Self = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L16"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> key_length = BlockCipher.key_bits / <span class="tok-number">8</span>;</span> <span class="line" id="L17"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> block_length = BlockCipher.block.block_length;</span> <span class="line" id="L18"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> mac_length = block_length;</span> <span class="line" id="L19"></span> <span class="line" id="L20"> cipher_ctx: BlockCipherCtx,</span> <span class="line" id="L21"> k1: Block,</span> <span class="line" id="L22"> k2: Block,</span> <span class="line" id="L23"> buf: Block = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} ** block_length,</span> <span class="line" id="L24"> pos: <span class="tok-type">usize</span> = <span class="tok-number">0</span>,</span> <span class="line" id="L25"></span> <span class="line" id="L26"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">create</span>(out: [mac_length]<span class="tok-type">u8</span>, msg: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, key: <span class="tok-kw">const</span> [key_length]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L27"> <span class="tok-kw">var</span> ctx = Self.init(key);</span> <span class="line" id="L28"> ctx.update(msg);</span> <span class="line" id="L29"> ctx.final(out);</span> <span class="line" id="L30"> }</span> <span class="line" id="L31"></span> <span class="line" id="L32"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">init</span>(key: <span class="tok-kw">const</span> [key_length]<span class="tok-type">u8</span>) Self {</span> <span class="line" id="L33"> <span class="tok-kw">const</span> cipher_ctx = BlockCipher.initEnc(key.);</span> <span class="line" id="L34"> <span class="tok-kw">const</span> zeros = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} ** block_length;</span> <span class="line" id="L35"> <span class="tok-kw">var</span> k1: Block = <span class="tok-null">undefined</span>;</span> <span class="line" id="L36"> cipher_ctx.encrypt(&k1, &zeros);</span> <span class="line" id="L37"> k1 = double(k1);</span> <span class="line" id="L38"> <span class="tok-kw">return</span> Self{</span> <span class="line" id="L39"> .cipher_ctx = cipher_ctx,</span> <span class="line" id="L40"> .k1 = k1,</span> <span class="line" id="L41"> .k2 = double(k1),</span> <span class="line" id="L42"> };</span> <span class="line" id="L43"> }</span> <span class="line" id="L44"></span> <span class="line" id="L45"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">update</span>(self: Self, msg: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L46"> <span class="tok-kw">const</span> left = block_length - self.pos;</span> <span class="line" id="L47"> <span class="tok-kw">var</span> m = msg;</span> <span class="line" id="L48"> <span class="tok-kw">if</span> (m.len > left) {</span> <span class="line" id="L49"> <span class="tok-kw">for</span> (self.buf[self.pos..], <span class="tok-number">0</span>..) \|b, i\| b.* ^= m[i];</span> <span class="line" id="L50"> m = m[left..];</span> <span class="line" id="L51"> self.cipher_ctx.encrypt(&self.buf, &self.buf);</span> <span class="line" id="L52"> self.pos = <span class="tok-number">0</span>;</span> <span class="line" id="L53"> }</span> <span class="line" id="L54"> <span class="tok-kw">while</span> (m.len > block_length) {</span> <span class="line" id="L55"> <span class="tok-kw">for</span> (self.buf[<span class="tok-number">0</span>..block_length], <span class="tok-number">0</span>..) \|b, i\| b. ^= m[i];</span> <span class="line" id="L56"> m = m[block_length..];</span> <span class="line" id="L57"> self.cipher_ctx.encrypt(&self.buf, &self.buf);</span> <span class="line" id="L58"> self.pos = <span class="tok-number">0</span>;</span> <span class="line" id="L59"> }</span> <span class="line" id="L60"> <span class="tok-kw">if</span> (m.len > <span class="tok-number">0</span>) {</span> <span class="line" id="L61"> <span class="tok-kw">for</span> (self.buf[self.pos..][<span class="tok-number">0</span>..m.len], <span class="tok-number">0</span>..) \|b, i\| b. ^= m[i];</span> <span class="line" id="L62"> self.pos += m.len;</span> <span class="line" id="L63"> }</span> <span class="line" id="L64"> }</span> <span class="line" id="L65"></span> <span class="line" id="L66"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">final</span>(self: Self, out: [mac_length]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L67"> <span class="tok-kw">var</span> mac = self.k1;</span> <span class="line" id="L68"> <span class="tok-kw">if</span> (self.pos < block_length) {</span> <span class="line" id="L69"> mac = self.k2;</span> <span class="line" id="L70"> mac[self.pos] ^= <span class="tok-number">0x80</span>;</span> <span class="line" id="L71"> }</span> <span class="line" id="L72"> <span class="tok-kw">for</span> (&mac, <span class="tok-number">0</span>..) \|b, i\| b. ^= self.buf[i];</span> <span class="line" id="L73"> self.cipher_ctx.encrypt(out, &mac);</span> <span class="line" id="L74"> }</span> <span class="line" id="L75"></span> <span class="line" id="L76"> <span class="tok-kw">fn</span> <span class="tok-fn">double</span>(l: Block) Block {</span> <span class="line" id="L77"> <span class="tok-kw">const</span> Int = std.meta.Int(.unsigned, block_length * <span class="tok-number">8</span>);</span> <span class="line" id="L78"> <span class="tok-kw">const</span> l_ = mem.readIntBig(Int, &l);</span> <span class="line" id="L79"> <span class="tok-kw">const</span> l_2 = <span class="tok-kw">switch</span> (block_length) {</span> <span class="line" id="L80"> <span class="tok-number">8</span> => (l_ << <span class="tok-number">1</span>) ^ (<span class="tok-number">0x1b</span> & -%(l_ >> <span class="tok-number">63</span>)), <span class="tok-comment">// mod x^64 + x^4 + x^3 + x + 1</span> </span> <span class="line" id="L81"> <span class="tok-number">16</span> => (l_ << <span class="tok-number">1</span>) ^ (<span class="tok-number">0x87</span> & -%(l_ >> <span class="tok-number">127</span>)), <span class="tok-comment">// mod x^128 + x^7 + x^2 + x + 1</span> </span> <span class="line" id="L82"> <span class="tok-number">32</span> => (l_ << <span class="tok-number">1</span>) ^ (<span class="tok-number">0x0425</span> & -%(l_ >> <span class="tok-number">255</span>)), <span class="tok-comment">// mod x^256 + x^10 + x^5 + x^2 + 1</span> </span> <span class="line" id="L83"> <span class="tok-number">64</span> => (l_ << <span class="tok-number">1</span>) ^ (<span class="tok-number">0x0125</span> & -%(l_ >> <span class="tok-number">511</span>)), <span class="tok-comment">// mod x^512 + x^8 + x^5 + x^2 + 1</span> </span> <span class="line" id="L84"> <span class="tok-kw">else</span> => <span class="tok-builtin">@compileError</span>(<span class="tok-str">"unsupported block length"</span>),</span> <span class="line" id="L85"> };</span> <span class="line" id="L86"> <span class="tok-kw">var</span> l2: Block = <span class="tok-null">undefined</span>;</span> <span class="line" id="L87"> mem.writeIntBig(Int, &l2, l_2);</span> <span class="line" id="L88"> <span class="tok-kw">return</span> l2;</span> <span class="line" id="L89"> }</span> <span class="line" id="L90"> };</span> <span class="line" id="L91">}</span> <span class="line" id="L92"></span> <span class="line" id="L93"><span class="tok-kw">const</span> testing = std.testing;</span> <span class="line" id="L94"></span> <span class="line" id="L95"><span class="tok-kw">test</span> <span class="tok-str">"CmacAes128 - Example 1: len = 0"</span> {</span> <span class="line" id="L96"> <span class="tok-kw">const</span> key = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L97"> <span class="tok-number">0x2b</span>, <span class="tok-number">0x7e</span>, <span class="tok-number">0x15</span>, <span class="tok-number">0x16</span>, <span class="tok-number">0x28</span>, <span class="tok-number">0xae</span>, <span class="tok-number">0xd2</span>, <span class="tok-number">0xa6</span>, <span class="tok-number">0xab</span>, <span class="tok-number">0xf7</span>, <span class="tok-number">0x15</span>, <span class="tok-number">0x88</span>, <span class="tok-number">0x09</span>, <span class="tok-number">0xcf</span>, <span class="tok-number">0x4f</span>, <span class="tok-number">0x3c</span>,</span> <span class="line" id="L98"> };</span> <span class="line" id="L99"> <span class="tok-kw">var</span> msg: [<span class="tok-number">0</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L100"> <span class="tok-kw">const</span> exp = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L101"> <span class="tok-number">0xbb</span>, <span class="tok-number">0x1d</span>, <span class="tok-number">0x69</span>, <span class="tok-number">0x29</span>, <span class="tok-number">0xe9</span>, <span class="tok-number">0x59</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x28</span>, <span class="tok-number">0x7f</span>, <span class="tok-number">0xa3</span>, <span class="tok-number">0x7d</span>, <span class="tok-number">0x12</span>, <span class="tok-number">0x9b</span>, <span class="tok-number">0x75</span>, <span class="tok-number">0x67</span>, <span class="tok-number">0x46</span>,</span> <span class="line" id="L102"> };</span> <span class="line" id="L103"> <span class="tok-kw">var</span> out: [CmacAes128.mac_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L104"> CmacAes128.create(&out, &msg, &key);</span> <span class="line" id="L105"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, &out, &exp);</span> <span class="line" id="L106">}</span> <span class="line" id="L107"></span> <span class="line" id="L108"><span class="tok-kw">test</span> <span class="tok-str">"CmacAes128 - Example 2: len = 16"</span> {</span> <span class="line" id="L109"> <span class="tok-kw">const</span> key = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L110"> <span class="tok-number">0x2b</span>, <span class="tok-number">0x7e</span>, <span class="tok-number">0x15</span>, <span class="tok-number">0x16</span>, <span class="tok-number">0x28</span>, <span class="tok-number">0xae</span>, <span class="tok-number">0xd2</span>, <span class="tok-number">0xa6</span>, <span class="tok-number">0xab</span>, <span class="tok-number">0xf7</span>, <span class="tok-number">0x15</span>, <span class="tok-number">0x88</span>, <span class="tok-number">0x09</span>, <span class="tok-number">0xcf</span>, <span class="tok-number">0x4f</span>, <span class="tok-number">0x3c</span>,</span> <span class="line" id="L111"> };</span> <span class="line" id="L112"> <span class="tok-kw">const</span> msg = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L113"> <span class="tok-number">0x6b</span>, <span class="tok-number">0xc1</span>, <span class="tok-number">0xbe</span>, <span class="tok-number">0xe2</span>, <span class="tok-number">0x2e</span>, <span class="tok-number">0x40</span>, <span class="tok-number">0x9f</span>, <span class="tok-number">0x96</span>, <span class="tok-number">0xe9</span>, <span class="tok-number">0x3d</span>, <span class="tok-number">0x7e</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0x73</span>, <span class="tok-number">0x93</span>, <span class="tok-number">0x17</span>, <span class="tok-number">0x2a</span>,</span> <span class="line" id="L114"> };</span> <span class="line" id="L115"> <span class="tok-kw">const</span> exp = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L116"> <span class="tok-number">0x07</span>, <span class="tok-number">0x0a</span>, <span class="tok-number">0x16</span>, <span class="tok-number">0xb4</span>, <span class="tok-number">0x6b</span>, <span class="tok-number">0x4d</span>, <span class="tok-number">0x41</span>, <span class="tok-number">0x44</span>, <span class="tok-number">0xf7</span>, <span class="tok-number">0x9b</span>, <span class="tok-number">0xdd</span>, <span class="tok-number">0x9d</span>, <span class="tok-number">0xd0</span>, <span class="tok-number">0x4a</span>, <span class="tok-number">0x28</span>, <span class="tok-number">0x7c</span>,</span> <span class="line" id="L117"> };</span> <span class="line" id="L118"> <span class="tok-kw">var</span> out: [CmacAes128.mac_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L119"> CmacAes128.create(&out, &msg, &key);</span> <span class="line" id="L120"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, &out, &exp);</span> <span class="line" id="L121">}</span> <span class="line" id="L122"></span> <span class="line" id="L123"><span class="tok-kw">test</span> <span class="tok-str">"CmacAes128 - Example 3: len = 40"</span> {</span> <span class="line" id="L124"> <span class="tok-kw">const</span> key = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L125"> <span class="tok-number">0x2b</span>, <span class="tok-number">0x7e</span>, <span class="tok-number">0x15</span>, <span class="tok-number">0x16</span>, <span class="tok-number">0x28</span>, <span class="tok-number">0xae</span>, <span class="tok-number">0xd2</span>, <span class="tok-number">0xa6</span>, <span class="tok-number">0xab</span>, <span class="tok-number">0xf7</span>, <span class="tok-number">0x15</span>, <span class="tok-number">0x88</span>, <span class="tok-number">0x09</span>, <span class="tok-number">0xcf</span>, <span class="tok-number">0x4f</span>, <span class="tok-number">0x3c</span>,</span> <span class="line" id="L126"> };</span> <span class="line" id="L127"> <span class="tok-kw">const</span> msg = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L128"> <span class="tok-number">0x6b</span>, <span class="tok-number">0xc1</span>, <span class="tok-number">0xbe</span>, <span class="tok-number">0xe2</span>, <span class="tok-number">0x2e</span>, <span class="tok-number">0x40</span>, <span class="tok-number">0x9f</span>, <span class="tok-number">0x96</span>, <span class="tok-number">0xe9</span>, <span class="tok-number">0x3d</span>, <span class="tok-number">0x7e</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0x73</span>, <span class="tok-number">0x93</span>, <span class="tok-number">0x17</span>, <span class="tok-number">0x2a</span>,</span> <span class="line" id="L129"> <span class="tok-number">0xae</span>, <span class="tok-number">0x2d</span>, <span class="tok-number">0x8a</span>, <span class="tok-number">0x57</span>, <span class="tok-number">0x1e</span>, <span class="tok-number">0x03</span>, <span class="tok-number">0xac</span>, <span class="tok-number">0x9c</span>, <span class="tok-number">0x9e</span>, <span class="tok-number">0xb7</span>, <span class="tok-number">0x6f</span>, <span class="tok-number">0xac</span>, <span class="tok-number">0x45</span>, <span class="tok-number">0xaf</span>, <span class="tok-number">0x8e</span>, <span class="tok-number">0x51</span>,</span> <span class="line" id="L130"> <span class="tok-number">0x30</span>, <span class="tok-number">0xc8</span>, <span class="tok-number">0x1c</span>, <span class="tok-number">0x46</span>, <span class="tok-number">0xa3</span>, <span class="tok-number">0x5c</span>, <span class="tok-number">0xe4</span>, <span class="tok-number">0x11</span>,</span> <span class="line" id="L131"> };</span> <span class="line" id="L132"> <span class="tok-kw">const</span> exp = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L133"> <span class="tok-number">0xdf</span>, <span class="tok-number">0xa6</span>, <span class="tok-number">0x67</span>, <span class="tok-number">0x47</span>, <span class="tok-number">0xde</span>, <span class="tok-number">0x9a</span>, <span class="tok-number">0xe6</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0xca</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x61</span>, <span class="tok-number">0x14</span>, <span class="tok-number">0x97</span>, <span class="tok-number">0xc8</span>, <span class="tok-number">0x27</span>,</span> <span class="line" id="L134"> };</span> <span class="line" id="L135"> <span class="tok-kw">var</span> out: [CmacAes128.mac_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L136"> CmacAes128.create(&out, &msg, &key);</span> <span class="line" id="L137"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, &out, &exp);</span> <span class="line" id="L138">}</span> <span class="line" id="L139"></span> <span class="line" id="L140"><span class="tok-kw">test</span> <span class="tok-str">"CmacAes128 - Example 4: len = 64"</span> {</span> <span class="line" id="L141"> <span class="tok-kw">const</span> key = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L142"> <span class="tok-number">0x2b</span>, <span class="tok-number">0x7e</span>, <span class="tok-number">0x15</span>, <span class="tok-number">0x16</span>, <span class="tok-number">0x28</span>, <span class="tok-number">0xae</span>, <span class="tok-number">0xd2</span>, <span class="tok-number">0xa6</span>, <span class="tok-number">0xab</span>, <span class="tok-number">0xf7</span>, <span class="tok-number">0x15</span>, <span class="tok-number">0x88</span>, <span class="tok-number">0x09</span>, <span class="tok-number">0xcf</span>, <span class="tok-number">0x4f</span>, <span class="tok-number">0x3c</span>,</span> <span class="line" id="L143"> };</span> <span class="line" id="L144"> <span class="tok-kw">const</span> msg = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L145"> <span class="tok-number">0x6b</span>, <span class="tok-number">0xc1</span>, <span class="tok-number">0xbe</span>, <span class="tok-number">0xe2</span>, <span class="tok-number">0x2e</span>, <span class="tok-number">0x40</span>, <span class="tok-number">0x9f</span>, <span class="tok-number">0x96</span>, <span class="tok-number">0xe9</span>, <span class="tok-number">0x3d</span>, <span class="tok-number">0x7e</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0x73</span>, <span class="tok-number">0x93</span>, <span class="tok-number">0x17</span>, <span class="tok-number">0x2a</span>,</span> <span class="line" id="L146"> <span class="tok-number">0xae</span>, <span class="tok-number">0x2d</span>, <span class="tok-number">0x8a</span>, <span class="tok-number">0x57</span>, <span class="tok-number">0x1e</span>, <span class="tok-number">0x03</span>, <span class="tok-number">0xac</span>, <span class="tok-number">0x9c</span>, <span class="tok-number">0x9e</span>, <span class="tok-number">0xb7</span>, <span class="tok-number">0x6f</span>, <span class="tok-number">0xac</span>, <span class="tok-number">0x45</span>, <span class="tok-number">0xaf</span>, <span class="tok-number">0x8e</span>, <span class="tok-number">0x51</span>,</span> <span class="line" id="L147"> <span class="tok-number">0x30</span>, <span class="tok-number">0xc8</span>, <span class="tok-number">0x1c</span>, <span class="tok-number">0x46</span>, <span class="tok-number">0xa3</span>, <span class="tok-number">0x5c</span>, <span class="tok-number">0xe4</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0xe5</span>, <span class="tok-number">0xfb</span>, <span class="tok-number">0xc1</span>, <span class="tok-number">0x19</span>, <span class="tok-number">0x1a</span>, <span class="tok-number">0x0a</span>, <span class="tok-number">0x52</span>, <span class="tok-number">0xef</span>,</span> <span class="line" id="L148"> <span class="tok-number">0xf6</span>, <span class="tok-number">0x9f</span>, <span class="tok-number">0x24</span>, <span class="tok-number">0x45</span>, <span class="tok-number">0xdf</span>, <span class="tok-number">0x4f</span>, <span class="tok-number">0x9b</span>, <span class="tok-number">0x17</span>, <span class="tok-number">0xad</span>, <span class="tok-number">0x2b</span>, <span class="tok-number">0x41</span>, <span class="tok-number">0x7b</span>, <span class="tok-number">0xe6</span>, <span class="tok-number">0x6c</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x10</span>,</span> <span class="line" id="L149"> };</span> <span class="line" id="L150"> <span class="tok-kw">const</span> exp = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L151"> <span class="tok-number">0x51</span>, <span class="tok-number">0xf0</span>, <span class="tok-number">0xbe</span>, <span class="tok-number">0xbf</span>, <span class="tok-number">0x7e</span>, <span class="tok-number">0x3b</span>, <span class="tok-number">0x9d</span>, <span class="tok-number">0x92</span>, <span class="tok-number">0xfc</span>, <span class="tok-number">0x49</span>, <span class="tok-number">0x74</span>, <span class="tok-number">0x17</span>, <span class="tok-number">0x79</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x3c</span>, <span class="tok-number">0xfe</span>,</span> <span class="line" id="L152"> };</span> <span class="line" id="L153"> <span class="tok-kw">var</span> out: [CmacAes128.mac_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L154"> CmacAes128.create(&out, &msg, &key);</span> <span class="line" id="L155"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, &out, &exp);</span> <span class="line" id="L156">}</span> <span class="line" id="L157"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/crypto/pbkdf2.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/pbkdf2.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L3"><span class="tok-kw">const</span> maxInt = std.math.maxInt;</span> <span class="line" id="L4"><span class="tok-kw">const</span> OutputTooLongError = std.crypto.errors.OutputTooLongError;</span> <span class="line" id="L5"><span class="tok-kw">const</span> WeakParametersError = std.crypto.errors.WeakParametersError;</span> <span class="line" id="L6"></span> <span class="line" id="L7"><span class="tok-comment">// RFC 2898 Section 5.2</span> </span> <span class="line" id="L8"><span class="tok-comment">//</span> </span> <span class="line" id="L9"><span class="tok-comment">// FromSpec:</span> </span> <span class="line" id="L10"><span class="tok-comment">//</span> </span> <span class="line" id="L11"><span class="tok-comment">// PBKDF2 applies a pseudorandom function (see Appendix B.1 for an</span> </span> <span class="line" id="L12"><span class="tok-comment">// example) to derive keys. The length of the derived key is essentially</span> </span> <span class="line" id="L13"><span class="tok-comment">// unbounded. (However, the maximum effective search space for the</span> </span> <span class="line" id="L14"><span class="tok-comment">// derived key may be limited by the structure of the underlying</span> </span> <span class="line" id="L15"><span class="tok-comment">// pseudorandom function. See Appendix B.1 for further discussion.)</span> </span> <span class="line" id="L16"><span class="tok-comment">// PBKDF2 is recommended for new applications.</span> </span> <span class="line" id="L17"><span class="tok-comment">//</span> </span> <span class="line" id="L18"><span class="tok-comment">// PBKDF2 (P, S, c, dk_len)</span> </span> <span class="line" id="L19"><span class="tok-comment">//</span> </span> <span class="line" id="L20"><span class="tok-comment">// Options: PRF underlying pseudorandom function (h_len</span> </span> <span class="line" id="L21"><span class="tok-comment">// denotes the length in octets of the</span> </span> <span class="line" id="L22"><span class="tok-comment">// pseudorandom function output)</span> </span> <span class="line" id="L23"><span class="tok-comment">//</span> </span> <span class="line" id="L24"><span class="tok-comment">// Input: P password, an octet string</span> </span> <span class="line" id="L25"><span class="tok-comment">// S salt, an octet string</span> </span> <span class="line" id="L26"><span class="tok-comment">// c iteration count, a positive integer</span> </span> <span class="line" id="L27"><span class="tok-comment">// dk_len intended length in octets of the derived</span> </span> <span class="line" id="L28"><span class="tok-comment">// key, a positive integer, at most</span> </span> <span class="line" id="L29"><span class="tok-comment">// (2^32 - 1) * h_len</span> </span> <span class="line" id="L30"><span class="tok-comment">//</span> </span> <span class="line" id="L31"><span class="tok-comment">// Output: DK derived key, a dk_len-octet string</span> </span> <span class="line" id="L32"></span> <span class="line" id="L33"><span class="tok-comment">// Based on Apple's CommonKeyDerivation, based originally on code by Damien Bergamini.</span> </span> <span class="line" id="L34"></span> <span class="line" id="L35"><span class="tok-comment">/// Apply PBKDF2 to generate a key from a password.</span></span> <span class="line" id="L36"><span class="tok-comment">///</span></span> <span class="line" id="L37"><span class="tok-comment">/// PBKDF2 is defined in RFC 2898, and is a recommendation of NIST SP 800-132.</span></span> <span class="line" id="L38"><span class="tok-comment">///</span></span> <span class="line" id="L39"><span class="tok-comment">/// dk: Slice of appropriate size for generated key. Generally 16 or 32 bytes in length.</span></span> <span class="line" id="L40"><span class="tok-comment">/// May be uninitialized. All bytes will be overwritten.</span></span> <span class="line" id="L41"><span class="tok-comment">/// Maximum size is `maxInt(u32) * Hash.digest_length`</span></span> <span class="line" id="L42"><span class="tok-comment">/// It is a programming error to pass buffer longer than the maximum size.</span></span> <span class="line" id="L43"><span class="tok-comment">///</span></span> <span class="line" id="L44"><span class="tok-comment">/// password: Arbitrary sequence of bytes of any length, including empty.</span></span> <span class="line" id="L45"><span class="tok-comment">///</span></span> <span class="line" id="L46"><span class="tok-comment">/// salt: Arbitrary sequence of bytes of any length, including empty. A common length is 8 bytes.</span></span> <span class="line" id="L47"><span class="tok-comment">///</span></span> <span class="line" id="L48"><span class="tok-comment">/// rounds: Iteration count. Must be greater than 0. Common values range from 1,000 to 100,000.</span></span> <span class="line" id="L49"><span class="tok-comment">/// Larger iteration counts improve security by increasing the time required to compute</span></span> <span class="line" id="L50"><span class="tok-comment">/// the dk. It is common to tune this parameter to achieve approximately 100ms.</span></span> <span class="line" id="L51"><span class="tok-comment">///</span></span> <span class="line" id="L52"><span class="tok-comment">/// Prf: Pseudo-random function to use. A common choice is `std.crypto.auth.hmac.sha2.HmacSha256`.</span></span> <span class="line" id="L53"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">pbkdf2</span>(dk: []<span class="tok-type">u8</span>, password: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, salt: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, rounds: <span class="tok-type">u32</span>, <span class="tok-kw">comptime</span> Prf: <span class="tok-type">type</span>) (WeakParametersError \|\| OutputTooLongError)!<span class="tok-type">void</span> {</span> <span class="line" id="L54"> <span class="tok-kw">if</span> (rounds < <span class="tok-number">1</span>) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.WeakParameters;</span> <span class="line" id="L55"></span> <span class="line" id="L56"> <span class="tok-kw">const</span> dk_len = dk.len;</span> <span class="line" id="L57"> <span class="tok-kw">const</span> h_len = Prf.mac_length;</span> <span class="line" id="L58"> <span class="tok-kw">comptime</span> std.debug.assert(h_len >= <span class="tok-number">1</span>);</span> <span class="line" id="L59"></span> <span class="line" id="L60"> <span class="tok-comment">// FromSpec:</span> </span> <span class="line" id="L61"> <span class="tok-comment">//</span> </span> <span class="line" id="L62"> <span class="tok-comment">// 1. If dk_len > maxInt(u32) * h_len, output "derived key too long" and</span> </span> <span class="line" id="L63"> <span class="tok-comment">// stop.</span> </span> <span class="line" id="L64"> <span class="tok-comment">//</span> </span> <span class="line" id="L65"> <span class="tok-kw">if</span> (dk_len / h_len >= maxInt(<span class="tok-type">u32</span>)) {</span> <span class="line" id="L66"> <span class="tok-comment">// Counter starts at 1 and is 32 bit, so if we have to return more blocks, we would overflow</span> </span> <span class="line" id="L67"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.OutputTooLong;</span> <span class="line" id="L68"> }</span> <span class="line" id="L69"></span> <span class="line" id="L70"> <span class="tok-comment">// FromSpec:</span> </span> <span class="line" id="L71"> <span class="tok-comment">//</span> </span> <span class="line" id="L72"> <span class="tok-comment">// 2. Let l be the number of h_len-long blocks of bytes in the derived key,</span> </span> <span class="line" id="L73"> <span class="tok-comment">// rounding up, and let r be the number of bytes in the last</span> </span> <span class="line" id="L74"> <span class="tok-comment">// block</span> </span> <span class="line" id="L75"> <span class="tok-comment">//</span> </span> <span class="line" id="L76"></span> <span class="line" id="L77"> <span class="tok-kw">const</span> blocks_count = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(std.math.divCeil(<span class="tok-type">usize</span>, dk_len, h_len) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>));</span> <span class="line" id="L78"> <span class="tok-kw">var</span> r = dk_len % h_len;</span> <span class="line" id="L79"> <span class="tok-kw">if</span> (r == <span class="tok-number">0</span>) {</span> <span class="line" id="L80"> r = h_len;</span> <span class="line" id="L81"> }</span> <span class="line" id="L82"></span> <span class="line" id="L83"> <span class="tok-comment">// FromSpec:</span> </span> <span class="line" id="L84"> <span class="tok-comment">//</span> </span> <span class="line" id="L85"> <span class="tok-comment">// 3. For each block of the derived key apply the function F defined</span> </span> <span class="line" id="L86"> <span class="tok-comment">// below to the password P, the salt S, the iteration count c, and</span> </span> <span class="line" id="L87"> <span class="tok-comment">// the block index to compute the block:</span> </span> <span class="line" id="L88"> <span class="tok-comment">//</span> </span> <span class="line" id="L89"> <span class="tok-comment">// T_1 = F (P, S, c, 1) ,</span> </span> <span class="line" id="L90"> <span class="tok-comment">// T_2 = F (P, S, c, 2) ,</span> </span> <span class="line" id="L91"> <span class="tok-comment">// ...</span> </span> <span class="line" id="L92"> <span class="tok-comment">// T_l = F (P, S, c, l) ,</span> </span> <span class="line" id="L93"> <span class="tok-comment">//</span> </span> <span class="line" id="L94"> <span class="tok-comment">// where the function F is defined as the exclusive-or sum of the</span> </span> <span class="line" id="L95"> <span class="tok-comment">// first c iterates of the underlying pseudorandom function PRF</span> </span> <span class="line" id="L96"> <span class="tok-comment">// applied to the password P and the concatenation of the salt S</span> </span> <span class="line" id="L97"> <span class="tok-comment">// and the block index i:</span> </span> <span class="line" id="L98"> <span class="tok-comment">//</span> </span> <span class="line" id="L99"> <span class="tok-comment">// F (P, S, c, i) = U_1 \xor U_2 \xor ... \xor U_c</span> </span> <span class="line" id="L100"> <span class="tok-comment">//</span> </span> <span class="line" id="L101"> <span class="tok-comment">// where</span> </span> <span class="line" id="L102"> <span class="tok-comment">//</span> </span> <span class="line" id="L103"> <span class="tok-comment">// U_1 = PRF (P, S \|\| INT (i)) ,</span> </span> <span class="line" id="L104"> <span class="tok-comment">// U_2 = PRF (P, U_1) ,</span> </span> <span class="line" id="L105"> <span class="tok-comment">// ...</span> </span> <span class="line" id="L106"> <span class="tok-comment">// U_c = PRF (P, U_{c-1}) .</span> </span> <span class="line" id="L107"> <span class="tok-comment">//</span> </span> <span class="line" id="L108"> <span class="tok-comment">// Here, INT (i) is a four-octet encoding of the integer i, most</span> </span> <span class="line" id="L109"> <span class="tok-comment">// significant octet first.</span> </span> <span class="line" id="L110"> <span class="tok-comment">//</span> </span> <span class="line" id="L111"> <span class="tok-comment">// 4. Concatenate the blocks and extract the first dk_len octets to</span> </span> <span class="line" id="L112"> <span class="tok-comment">// produce a derived key DK:</span> </span> <span class="line" id="L113"> <span class="tok-comment">//</span> </span> <span class="line" id="L114"> <span class="tok-comment">// DK = T_1 \|\| T_2 \|\| ... \|\| T_l<0..r-1></span> </span> <span class="line" id="L115"></span> <span class="line" id="L116"> <span class="tok-kw">var</span> block: <span class="tok-type">u32</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L117"> <span class="tok-kw">while</span> (block < blocks_count) : (block += <span class="tok-number">1</span>) {</span> <span class="line" id="L118"> <span class="tok-kw">var</span> prev_block: [h_len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L119"> <span class="tok-kw">var</span> new_block: [h_len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L120"></span> <span class="line" id="L121"> <span class="tok-comment">// U_1 = PRF (P, S \|\| INT (i))</span> </span> <span class="line" id="L122"> <span class="tok-kw">const</span> block_index = mem.toBytes(mem.nativeToBig(<span class="tok-type">u32</span>, block + <span class="tok-number">1</span>)); <span class="tok-comment">// Block index starts at 0001</span> </span> <span class="line" id="L123"> <span class="tok-kw">var</span> ctx = Prf.init(password);</span> <span class="line" id="L124"> ctx.update(salt);</span> <span class="line" id="L125"> ctx.update(block_index[<span class="tok-number">0</span>..]);</span> <span class="line" id="L126"> ctx.final(prev_block[<span class="tok-number">0</span>..]);</span> <span class="line" id="L127"></span> <span class="line" id="L128"> <span class="tok-comment">// Choose portion of DK to write into (T_n) and initialize</span> </span> <span class="line" id="L129"> <span class="tok-kw">const</span> offset = block * h_len;</span> <span class="line" id="L130"> <span class="tok-kw">const</span> block_len = <span class="tok-kw">if</span> (block != blocks_count - <span class="tok-number">1</span>) h_len <span class="tok-kw">else</span> r;</span> <span class="line" id="L131"> <span class="tok-kw">const</span> dk_block: []<span class="tok-type">u8</span> = dk[offset..][<span class="tok-number">0</span>..block_len];</span> <span class="line" id="L132"> <span class="tok-builtin">@memcpy</span>(dk_block, prev_block[<span class="tok-number">0</span>..dk_block.len]);</span> <span class="line" id="L133"></span> <span class="line" id="L134"> <span class="tok-kw">var</span> i: <span class="tok-type">u32</span> = <span class="tok-number">1</span>;</span> <span class="line" id="L135"> <span class="tok-kw">while</span> (i < rounds) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L136"> <span class="tok-comment">// U_c = PRF (P, U_{c-1})</span> </span> <span class="line" id="L137"> Prf.create(&new_block, prev_block[<span class="tok-number">0</span>..], password);</span> <span class="line" id="L138"> prev_block = new_block;</span> <span class="line" id="L139"></span> <span class="line" id="L140"> <span class="tok-comment">// F (P, S, c, i) = U_1 \xor U_2 \xor ... \xor U_c</span> </span> <span class="line" id="L141"> <span class="tok-kw">for</span> (dk_block, <span class="tok-number">0</span>..) \|_, j\| {</span> <span class="line" id="L142"> dk_block[j] ^= new_block[j];</span> <span class="line" id="L143"> }</span> <span class="line" id="L144"> }</span> <span class="line" id="L145"> }</span> <span class="line" id="L146">}</span> <span class="line" id="L147"></span> <span class="line" id="L148"><span class="tok-kw">const</span> htest = <span class="tok-builtin">@import</span>(<span class="tok-str">"test.zig"</span>);</span> <span class="line" id="L149"><span class="tok-kw">const</span> HmacSha1 = std.crypto.auth.hmac.HmacSha1;</span> <span class="line" id="L150"></span> <span class="line" id="L151"><span class="tok-comment">// RFC 6070 PBKDF2 HMAC-SHA1 Test Vectors</span> </span> <span class="line" id="L152"></span> <span class="line" id="L153"><span class="tok-kw">test</span> <span class="tok-str">"RFC 6070 one iteration"</span> {</span> <span class="line" id="L154"> <span class="tok-kw">const</span> p = <span class="tok-str">"password"</span>;</span> <span class="line" id="L155"> <span class="tok-kw">const</span> s = <span class="tok-str">"salt"</span>;</span> <span class="line" id="L156"> <span class="tok-kw">const</span> c = <span class="tok-number">1</span>;</span> <span class="line" id="L157"> <span class="tok-kw">const</span> dk_len = <span class="tok-number">20</span>;</span> <span class="line" id="L158"></span> <span class="line" id="L159"> <span class="tok-kw">var</span> dk: [dk_len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L160"></span> <span class="line" id="L161"> <span class="tok-kw">try</span> pbkdf2(&dk, p, s, c, HmacSha1);</span> <span class="line" id="L162"></span> <span class="line" id="L163"> <span class="tok-kw">const</span> expected = <span class="tok-str">"0c60c80f961f0e71f3a9b524af6012062fe037a6"</span>;</span> <span class="line" id="L164"></span> <span class="line" id="L165"> <span class="tok-kw">try</span> htest.assertEqual(expected, dk[<span class="tok-number">0</span>..]);</span> <span class="line" id="L166">}</span> <span class="line" id="L167"></span> <span class="line" id="L168"><span class="tok-kw">test</span> <span class="tok-str">"RFC 6070 two iterations"</span> {</span> <span class="line" id="L169"> <span class="tok-kw">const</span> p = <span class="tok-str">"password"</span>;</span> <span class="line" id="L170"> <span class="tok-kw">const</span> s = <span class="tok-str">"salt"</span>;</span> <span class="line" id="L171"> <span class="tok-kw">const</span> c = <span class="tok-number">2</span>;</span> <span class="line" id="L172"> <span class="tok-kw">const</span> dk_len = <span class="tok-number">20</span>;</span> <span class="line" id="L173"></span> <span class="line" id="L174"> <span class="tok-kw">var</span> dk: [dk_len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L175"></span> <span class="line" id="L176"> <span class="tok-kw">try</span> pbkdf2(&dk, p, s, c, HmacSha1);</span> <span class="line" id="L177"></span> <span class="line" id="L178"> <span class="tok-kw">const</span> expected = <span class="tok-str">"ea6c014dc72d6f8ccd1ed92ace1d41f0d8de8957"</span>;</span> <span class="line" id="L179"></span> <span class="line" id="L180"> <span class="tok-kw">try</span> htest.assertEqual(expected, dk[<span class="tok-number">0</span>..]);</span> <span class="line" id="L181">}</span> <span class="line" id="L182"></span> <span class="line" id="L183"><span class="tok-kw">test</span> <span class="tok-str">"RFC 6070 4096 iterations"</span> {</span> <span class="line" id="L184"> <span class="tok-kw">const</span> p = <span class="tok-str">"password"</span>;</span> <span class="line" id="L185"> <span class="tok-kw">const</span> s = <span class="tok-str">"salt"</span>;</span> <span class="line" id="L186"> <span class="tok-kw">const</span> c = <span class="tok-number">4096</span>;</span> <span class="line" id="L187"> <span class="tok-kw">const</span> dk_len = <span class="tok-number">20</span>;</span> <span class="line" id="L188"></span> <span class="line" id="L189"> <span class="tok-kw">var</span> dk: [dk_len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L190"></span> <span class="line" id="L191"> <span class="tok-kw">try</span> pbkdf2(&dk, p, s, c, HmacSha1);</span> <span class="line" id="L192"></span> <span class="line" id="L193"> <span class="tok-kw">const</span> expected = <span class="tok-str">"4b007901b765489abead49d926f721d065a429c1"</span>;</span> <span class="line" id="L194"></span> <span class="line" id="L195"> <span class="tok-kw">try</span> htest.assertEqual(expected, dk[<span class="tok-number">0</span>..]);</span> <span class="line" id="L196">}</span> <span class="line" id="L197"></span> <span class="line" id="L198"><span class="tok-kw">test</span> <span class="tok-str">"RFC 6070 16,777,216 iterations"</span> {</span> <span class="line" id="L199"> <span class="tok-comment">// These iteration tests are slow so we always skip them. Results have been verified.</span> </span> <span class="line" id="L200"> <span class="tok-kw">if</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L201"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SkipZigTest;</span> <span class="line" id="L202"> }</span> <span class="line" id="L203"></span> <span class="line" id="L204"> <span class="tok-kw">const</span> p = <span class="tok-str">"password"</span>;</span> <span class="line" id="L205"> <span class="tok-kw">const</span> s = <span class="tok-str">"salt"</span>;</span> <span class="line" id="L206"> <span class="tok-kw">const</span> c = <span class="tok-number">16777216</span>;</span> <span class="line" id="L207"> <span class="tok-kw">const</span> dk_len = <span class="tok-number">20</span>;</span> <span class="line" id="L208"></span> <span class="line" id="L209"> <span class="tok-kw">var</span> dk = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} ** dk_len;</span> <span class="line" id="L210"></span> <span class="line" id="L211"> <span class="tok-kw">try</span> pbkdf2(&dk, p, s, c, HmacSha1);</span> <span class="line" id="L212"></span> <span class="line" id="L213"> <span class="tok-kw">const</span> expected = <span class="tok-str">"eefe3d61cd4da4e4e9945b3d6ba2158c2634e984"</span>;</span> <span class="line" id="L214"></span> <span class="line" id="L215"> <span class="tok-kw">try</span> htest.assertEqual(expected, dk[<span class="tok-number">0</span>..]);</span> <span class="line" id="L216">}</span> <span class="line" id="L217"></span> <span class="line" id="L218"><span class="tok-kw">test</span> <span class="tok-str">"RFC 6070 multi-block salt and password"</span> {</span> <span class="line" id="L219"> <span class="tok-kw">const</span> p = <span class="tok-str">"passwordPASSWORDpassword"</span>;</span> <span class="line" id="L220"> <span class="tok-kw">const</span> s = <span class="tok-str">"saltSALTsaltSALTsaltSALTsaltSALTsalt"</span>;</span> <span class="line" id="L221"> <span class="tok-kw">const</span> c = <span class="tok-number">4096</span>;</span> <span class="line" id="L222"> <span class="tok-kw">const</span> dk_len = <span class="tok-number">25</span>;</span> <span class="line" id="L223"></span> <span class="line" id="L224"> <span class="tok-kw">var</span> dk: [dk_len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L225"></span> <span class="line" id="L226"> <span class="tok-kw">try</span> pbkdf2(&dk, p, s, c, HmacSha1);</span> <span class="line" id="L227"></span> <span class="line" id="L228"> <span class="tok-kw">const</span> expected = <span class="tok-str">"3d2eec4fe41c849b80c8d83662c0e44a8b291a964cf2f07038"</span>;</span> <span class="line" id="L229"></span> <span class="line" id="L230"> <span class="tok-kw">try</span> htest.assertEqual(expected, dk[<span class="tok-number">0</span>..]);</span> <span class="line" id="L231">}</span> <span class="line" id="L232"></span> <span class="line" id="L233"><span class="tok-kw">test</span> <span class="tok-str">"RFC 6070 embedded NUL"</span> {</span> <span class="line" id="L234"> <span class="tok-kw">const</span> p = <span class="tok-str">"pass\x00word"</span>;</span> <span class="line" id="L235"> <span class="tok-kw">const</span> s = <span class="tok-str">"sa\x00lt"</span>;</span> <span class="line" id="L236"> <span class="tok-kw">const</span> c = <span class="tok-number">4096</span>;</span> <span class="line" id="L237"> <span class="tok-kw">const</span> dk_len = <span class="tok-number">16</span>;</span> <span class="line" id="L238"></span> <span class="line" id="L239"> <span class="tok-kw">var</span> dk: [dk_len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L240"></span> <span class="line" id="L241"> <span class="tok-kw">try</span> pbkdf2(&dk, p, s, c, HmacSha1);</span> <span class="line" id="L242"></span> <span class="line" id="L243"> <span class="tok-kw">const</span> expected = <span class="tok-str">"56fa6aa75548099dcc37d7f03425e0c3"</span>;</span> <span class="line" id="L244"></span> <span class="line" id="L245"> <span class="tok-kw">try</span> htest.assertEqual(expected, dk[<span class="tok-number">0</span>..]);</span> <span class="line" id="L246">}</span> <span class="line" id="L247"></span> <span class="line" id="L248"><span class="tok-kw">test</span> <span class="tok-str">"Very large dk_len"</span> {</span> <span class="line" id="L249"> <span class="tok-comment">// This test allocates 8GB of memory and is expected to take several hours to run.</span> </span> <span class="line" id="L250"> <span class="tok-kw">if</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L251"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SkipZigTest;</span> <span class="line" id="L252"> }</span> <span class="line" id="L253"> <span class="tok-kw">const</span> p = <span class="tok-str">"password"</span>;</span> <span class="line" id="L254"> <span class="tok-kw">const</span> s = <span class="tok-str">"salt"</span>;</span> <span class="line" id="L255"> <span class="tok-kw">const</span> c = <span class="tok-number">1</span>;</span> <span class="line" id="L256"> <span class="tok-kw">const</span> dk_len = <span class="tok-number">1</span> << <span class="tok-number">33</span>;</span> <span class="line" id="L257"></span> <span class="line" id="L258"> <span class="tok-kw">var</span> dk = <span class="tok-kw">try</span> std.testing.allocator.alloc(<span class="tok-type">u8</span>, dk_len);</span> <span class="line" id="L259"> <span class="tok-kw">defer</span> {</span> <span class="line" id="L260"> std.testing.allocator.free(dk);</span> <span class="line" id="L261"> }</span> <span class="line" id="L262"></span> <span class="line" id="L263"> <span class="tok-comment">// Just verify this doesn't crash with an overflow</span> </span> <span class="line" id="L264"> <span class="tok-kw">try</span> pbkdf2(dk, p, s, c, HmacSha1);</span> <span class="line" id="L265">}</span> <span class="line" id="L266"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/crypto/ghash_polyval.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/ghash_polyval.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"../std.zig"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> builtin = <span class="tok-builtin">@import</span>(<span class="tok-str">"builtin"</span>);</span> <span class="line" id="L3"><span class="tok-kw">const</span> assert = std.debug.assert;</span> <span class="line" id="L4"><span class="tok-kw">const</span> math = std.math;</span> <span class="line" id="L5"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L6"><span class="tok-kw">const</span> utils = std.crypto.utils;</span> <span class="line" id="L7"></span> <span class="line" id="L8"><span class="tok-kw">const</span> Precomp = <span class="tok-type">u128</span>;</span> <span class="line" id="L9"></span> <span class="line" id="L10"><span class="tok-comment">/// GHASH is a universal hash function that uses multiplication by a fixed</span></span> <span class="line" id="L11"><span class="tok-comment">/// parameter within a Galois field.</span></span> <span class="line" id="L12"><span class="tok-comment">///</span></span> <span class="line" id="L13"><span class="tok-comment">/// It is not a general purpose hash function - The key must be secret, unpredictable and never reused.</span></span> <span class="line" id="L14"><span class="tok-comment">///</span></span> <span class="line" id="L15"><span class="tok-comment">/// GHASH is typically used to compute the authentication tag in the AES-GCM construction.</span></span> <span class="line" id="L16"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Ghash = Hash(.Big, <span class="tok-null">true</span>);</span> <span class="line" id="L17"></span> <span class="line" id="L18"><span class="tok-comment">/// POLYVAL is a universal hash function that uses multiplication by a fixed</span></span> <span class="line" id="L19"><span class="tok-comment">/// parameter within a Galois field.</span></span> <span class="line" id="L20"><span class="tok-comment">///</span></span> <span class="line" id="L21"><span class="tok-comment">/// It is not a general purpose hash function - The key must be secret, unpredictable and never reused.</span></span> <span class="line" id="L22"><span class="tok-comment">///</span></span> <span class="line" id="L23"><span class="tok-comment">/// POLYVAL is typically used to compute the authentication tag in the AES-GCM-SIV construction.</span></span> <span class="line" id="L24"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Polyval = Hash(.Little, <span class="tok-null">false</span>);</span> <span class="line" id="L25"></span> <span class="line" id="L26"><span class="tok-kw">fn</span> <span class="tok-fn">Hash</span>(<span class="tok-kw">comptime</span> endian: std.builtin.Endian, <span class="tok-kw">comptime</span> shift_key: <span class="tok-type">bool</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L27"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L28"> <span class="tok-kw">const</span> Self = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L29"></span> <span class="line" id="L30"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> block_length: <span class="tok-type">usize</span> = <span class="tok-number">16</span>;</span> <span class="line" id="L31"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> mac_length = <span class="tok-number">16</span>;</span> <span class="line" id="L32"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> key_length = <span class="tok-number">16</span>;</span> <span class="line" id="L33"></span> <span class="line" id="L34"> <span class="tok-kw">const</span> pc_count = <span class="tok-kw">if</span> (builtin.mode != .ReleaseSmall) <span class="tok-number">16</span> <span class="tok-kw">else</span> <span class="tok-number">2</span>;</span> <span class="line" id="L35"> <span class="tok-kw">const</span> agg_4_threshold = <span class="tok-number">22</span>;</span> <span class="line" id="L36"> <span class="tok-kw">const</span> agg_8_threshold = <span class="tok-number">84</span>;</span> <span class="line" id="L37"> <span class="tok-kw">const</span> agg_16_threshold = <span class="tok-number">328</span>;</span> <span class="line" id="L38"></span> <span class="line" id="L39"> <span class="tok-comment">// Before the Haswell architecture, the carryless multiplication instruction was</span> </span> <span class="line" id="L40"> <span class="tok-comment">// extremely slow. Even with 128-bit operands, using Karatsuba multiplication was</span> </span> <span class="line" id="L41"> <span class="tok-comment">// thus faster than a schoolbook multiplication.</span> </span> <span class="line" id="L42"> <span class="tok-comment">// This is no longer the case -- Modern CPUs, including ARM-based ones, have a fast</span> </span> <span class="line" id="L43"> <span class="tok-comment">// carryless multiplication instruction; using 4 multiplications is now faster than</span> </span> <span class="line" id="L44"> <span class="tok-comment">// 3 multiplications with extra shifts and additions.</span> </span> <span class="line" id="L45"> <span class="tok-kw">const</span> mul_algorithm = <span class="tok-kw">if</span> (builtin.cpu.arch == .x86) .karatsuba <span class="tok-kw">else</span> .schoolbook;</span> <span class="line" id="L46"></span> <span class="line" id="L47"> hx: [pc_count]Precomp,</span> <span class="line" id="L48"> acc: <span class="tok-type">u128</span> = <span class="tok-number">0</span>,</span> <span class="line" id="L49"></span> <span class="line" id="L50"> leftover: <span class="tok-type">usize</span> = <span class="tok-number">0</span>,</span> <span class="line" id="L51"> buf: [block_length]<span class="tok-type">u8</span> <span class="tok-kw">align</span>(<span class="tok-number">16</span>) = <span class="tok-null">undefined</span>,</span> <span class="line" id="L52"></span> <span class="line" id="L53"> <span class="tok-comment">/// Initialize the GHASH state with a key, and a minimum number of block count.</span></span> <span class="line" id="L54"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">initForBlockCount</span>(key: <span class="tok-kw">const</span> [key_length]<span class="tok-type">u8</span>, block_count: <span class="tok-type">usize</span>) Self {</span> <span class="line" id="L55"> <span class="tok-kw">var</span> h = mem.readInt(<span class="tok-type">u128</span>, key[<span class="tok-number">0</span>..<span class="tok-number">16</span>], endian);</span> <span class="line" id="L56"> <span class="tok-kw">if</span> (shift_key) {</span> <span class="line" id="L57"> <span class="tok-comment">// Shift the key by 1 bit to the left & reduce for GCM.</span> </span> <span class="line" id="L58"> <span class="tok-kw">const</span> carry = ((<span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, <span class="tok-number">0xc2</span>) << <span class="tok-number">120</span>) \| <span class="tok-number">1</span>) & (<span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, <span class="tok-number">0</span>) -% (h >> <span class="tok-number">127</span>));</span> <span class="line" id="L59"> h = (h << <span class="tok-number">1</span>) ^ carry;</span> <span class="line" id="L60"> }</span> <span class="line" id="L61"> <span class="tok-kw">var</span> hx: [pc_count]Precomp = <span class="tok-null">undefined</span>;</span> <span class="line" id="L62"> hx[<span class="tok-number">0</span>] = h;</span> <span class="line" id="L63"> hx[<span class="tok-number">1</span>] = reduce(clsq128(hx[<span class="tok-number">0</span>])); <span class="tok-comment">// h^2</span> </span> <span class="line" id="L64"></span> <span class="line" id="L65"> <span class="tok-kw">if</span> (builtin.mode != .ReleaseSmall) {</span> <span class="line" id="L66"> hx[<span class="tok-number">2</span>] = reduce(clmul128(hx[<span class="tok-number">1</span>], h)); <span class="tok-comment">// h^3</span> </span> <span class="line" id="L67"> hx[<span class="tok-number">3</span>] = reduce(clsq128(hx[<span class="tok-number">1</span>])); <span class="tok-comment">// h^4 = h^2^2</span> </span> <span class="line" id="L68"> <span class="tok-kw">if</span> (block_count >= agg_8_threshold) {</span> <span class="line" id="L69"> hx[<span class="tok-number">4</span>] = reduce(clmul128(hx[<span class="tok-number">3</span>], h)); <span class="tok-comment">// h^5</span> </span> <span class="line" id="L70"> hx[<span class="tok-number">5</span>] = reduce(clsq128(hx[<span class="tok-number">2</span>])); <span class="tok-comment">// h^6 = h^3^2</span> </span> <span class="line" id="L71"> hx[<span class="tok-number">6</span>] = reduce(clmul128(hx[<span class="tok-number">5</span>], h)); <span class="tok-comment">// h^7</span> </span> <span class="line" id="L72"> hx[<span class="tok-number">7</span>] = reduce(clsq128(hx[<span class="tok-number">3</span>])); <span class="tok-comment">// h^8 = h^4^2</span> </span> <span class="line" id="L73"> }</span> <span class="line" id="L74"> <span class="tok-kw">if</span> (block_count >= agg_16_threshold) {</span> <span class="line" id="L75"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">8</span>;</span> <span class="line" id="L76"> <span class="tok-kw">while</span> (i < <span class="tok-number">16</span>) : (i += <span class="tok-number">2</span>) {</span> <span class="line" id="L77"> hx[i] = reduce(clmul128(hx[i - <span class="tok-number">1</span>], h));</span> <span class="line" id="L78"> hx[i + <span class="tok-number">1</span>] = reduce(clsq128(hx[i / <span class="tok-number">2</span>]));</span> <span class="line" id="L79"> }</span> <span class="line" id="L80"> }</span> <span class="line" id="L81"> }</span> <span class="line" id="L82"> <span class="tok-kw">return</span> Self{ .hx = hx };</span> <span class="line" id="L83"> }</span> <span class="line" id="L84"></span> <span class="line" id="L85"> <span class="tok-comment">/// Initialize the GHASH state with a key.</span></span> <span class="line" id="L86"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">init</span>(key: <span class="tok-kw">const</span> [key_length]<span class="tok-type">u8</span>) Self {</span> <span class="line" id="L87"> <span class="tok-kw">return</span> Self.initForBlockCount(key, math.maxInt(<span class="tok-type">usize</span>));</span> <span class="line" id="L88"> }</span> <span class="line" id="L89"></span> <span class="line" id="L90"> <span class="tok-kw">const</span> Selector = <span class="tok-kw">enum</span> { lo, hi, hi_lo };</span> <span class="line" id="L91"></span> <span class="line" id="L92"> <span class="tok-comment">// Carryless multiplication of two 64-bit integers for x86_64.</span> </span> <span class="line" id="L93"> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">clmulPclmul</span>(x: <span class="tok-type">u128</span>, y: <span class="tok-type">u128</span>, <span class="tok-kw">comptime</span> half: Selector) <span class="tok-type">u128</span> {</span> <span class="line" id="L94"> <span class="tok-kw">switch</span> (half) {</span> <span class="line" id="L95"> .hi => {</span> <span class="line" id="L96"> <span class="tok-kw">const</span> product = <span class="tok-kw">asm</span> (</span> <span class="line" id="L97"> <span class="tok-str">\\ vpclmulqdq $0x11, %[x], %[y], %[out]</span></span> <span class="line" id="L98"> : [out] <span class="tok-str">"=x"</span> (-> <span class="tok-builtin">@Vector</span>(<span class="tok-number">2</span>, <span class="tok-type">u64</span>)),</span> <span class="line" id="L99"> : [x] <span class="tok-str">"x"</span> (<span class="tok-builtin">@as</span>(<span class="tok-builtin">@Vector</span>(<span class="tok-number">2</span>, <span class="tok-type">u64</span>), <span class="tok-builtin">@bitCast</span>(x))),</span> <span class="line" id="L100"> [y] <span class="tok-str">"x"</span> (<span class="tok-builtin">@as</span>(<span class="tok-builtin">@Vector</span>(<span class="tok-number">2</span>, <span class="tok-type">u64</span>), <span class="tok-builtin">@bitCast</span>(y))),</span> <span class="line" id="L101"> );</span> <span class="line" id="L102"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, <span class="tok-builtin">@bitCast</span>(product));</span> <span class="line" id="L103"> },</span> <span class="line" id="L104"> .lo => {</span> <span class="line" id="L105"> <span class="tok-kw">const</span> product = <span class="tok-kw">asm</span> (</span> <span class="line" id="L106"> <span class="tok-str">\\ vpclmulqdq $0x00, %[x], %[y], %[out]</span></span> <span class="line" id="L107"> : [out] <span class="tok-str">"=x"</span> (-> <span class="tok-builtin">@Vector</span>(<span class="tok-number">2</span>, <span class="tok-type">u64</span>)),</span> <span class="line" id="L108"> : [x] <span class="tok-str">"x"</span> (<span class="tok-builtin">@as</span>(<span class="tok-builtin">@Vector</span>(<span class="tok-number">2</span>, <span class="tok-type">u64</span>), <span class="tok-builtin">@bitCast</span>(x))),</span> <span class="line" id="L109"> [y] <span class="tok-str">"x"</span> (<span class="tok-builtin">@as</span>(<span class="tok-builtin">@Vector</span>(<span class="tok-number">2</span>, <span class="tok-type">u64</span>), <span class="tok-builtin">@bitCast</span>(y))),</span> <span class="line" id="L110"> );</span> <span class="line" id="L111"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, <span class="tok-builtin">@bitCast</span>(product));</span> <span class="line" id="L112"> },</span> <span class="line" id="L113"> .hi_lo => {</span> <span class="line" id="L114"> <span class="tok-kw">const</span> product = <span class="tok-kw">asm</span> (</span> <span class="line" id="L115"> <span class="tok-str">\\ vpclmulqdq $0x10, %[x], %[y], %[out]</span></span> <span class="line" id="L116"> : [out] <span class="tok-str">"=x"</span> (-> <span class="tok-builtin">@Vector</span>(<span class="tok-number">2</span>, <span class="tok-type">u64</span>)),</span> <span class="line" id="L117"> : [x] <span class="tok-str">"x"</span> (<span class="tok-builtin">@as</span>(<span class="tok-builtin">@Vector</span>(<span class="tok-number">2</span>, <span class="tok-type">u64</span>), <span class="tok-builtin">@bitCast</span>(x))),</span> <span class="line" id="L118"> [y] <span class="tok-str">"x"</span> (<span class="tok-builtin">@as</span>(<span class="tok-builtin">@Vector</span>(<span class="tok-number">2</span>, <span class="tok-type">u64</span>), <span class="tok-builtin">@bitCast</span>(y))),</span> <span class="line" id="L119"> );</span> <span class="line" id="L120"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, <span class="tok-builtin">@bitCast</span>(product));</span> <span class="line" id="L121"> },</span> <span class="line" id="L122"> }</span> <span class="line" id="L123"> }</span> <span class="line" id="L124"></span> <span class="line" id="L125"> <span class="tok-comment">// Carryless multiplication of two 64-bit integers for ARM crypto.</span> </span> <span class="line" id="L126"> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">clmulPmull</span>(x: <span class="tok-type">u128</span>, y: <span class="tok-type">u128</span>, <span class="tok-kw">comptime</span> half: Selector) <span class="tok-type">u128</span> {</span> <span class="line" id="L127"> <span class="tok-kw">switch</span> (half) {</span> <span class="line" id="L128"> .hi => {</span> <span class="line" id="L129"> <span class="tok-kw">const</span> product = <span class="tok-kw">asm</span> (</span> <span class="line" id="L130"> <span class="tok-str">\\ pmull2 %[out].1q, %[x].2d, %[y].2d</span></span> <span class="line" id="L131"> : [out] <span class="tok-str">"=w"</span> (-> <span class="tok-builtin">@Vector</span>(<span class="tok-number">2</span>, <span class="tok-type">u64</span>)),</span> <span class="line" id="L132"> : [x] <span class="tok-str">"w"</span> (<span class="tok-builtin">@as</span>(<span class="tok-builtin">@Vector</span>(<span class="tok-number">2</span>, <span class="tok-type">u64</span>), <span class="tok-builtin">@bitCast</span>(x))),</span> <span class="line" id="L133"> [y] <span class="tok-str">"w"</span> (<span class="tok-builtin">@as</span>(<span class="tok-builtin">@Vector</span>(<span class="tok-number">2</span>, <span class="tok-type">u64</span>), <span class="tok-builtin">@bitCast</span>(y))),</span> <span class="line" id="L134"> );</span> <span class="line" id="L135"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, <span class="tok-builtin">@bitCast</span>(product));</span> <span class="line" id="L136"> },</span> <span class="line" id="L137"> .lo => {</span> <span class="line" id="L138"> <span class="tok-kw">const</span> product = <span class="tok-kw">asm</span> (</span> <span class="line" id="L139"> <span class="tok-str">\\ pmull %[out].1q, %[x].1d, %[y].1d</span></span> <span class="line" id="L140"> : [out] <span class="tok-str">"=w"</span> (-> <span class="tok-builtin">@Vector</span>(<span class="tok-number">2</span>, <span class="tok-type">u64</span>)),</span> <span class="line" id="L141"> : [x] <span class="tok-str">"w"</span> (<span class="tok-builtin">@as</span>(<span class="tok-builtin">@Vector</span>(<span class="tok-number">2</span>, <span class="tok-type">u64</span>), <span class="tok-builtin">@bitCast</span>(x))),</span> <span class="line" id="L142"> [y] <span class="tok-str">"w"</span> (<span class="tok-builtin">@as</span>(<span class="tok-builtin">@Vector</span>(<span class="tok-number">2</span>, <span class="tok-type">u64</span>), <span class="tok-builtin">@bitCast</span>(y))),</span> <span class="line" id="L143"> );</span> <span class="line" id="L144"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, <span class="tok-builtin">@bitCast</span>(product));</span> <span class="line" id="L145"> },</span> <span class="line" id="L146"> .hi_lo => {</span> <span class="line" id="L147"> <span class="tok-kw">const</span> product = <span class="tok-kw">asm</span> (</span> <span class="line" id="L148"> <span class="tok-str">\\ pmull %[out].1q, %[x].1d, %[y].1d</span></span> <span class="line" id="L149"> : [out] <span class="tok-str">"=w"</span> (-> <span class="tok-builtin">@Vector</span>(<span class="tok-number">2</span>, <span class="tok-type">u64</span>)),</span> <span class="line" id="L150"> : [x] <span class="tok-str">"w"</span> (<span class="tok-builtin">@as</span>(<span class="tok-builtin">@Vector</span>(<span class="tok-number">2</span>, <span class="tok-type">u64</span>), <span class="tok-builtin">@bitCast</span>(x >> <span class="tok-number">64</span>))),</span> <span class="line" id="L151"> [y] <span class="tok-str">"w"</span> (<span class="tok-builtin">@as</span>(<span class="tok-builtin">@Vector</span>(<span class="tok-number">2</span>, <span class="tok-type">u64</span>), <span class="tok-builtin">@bitCast</span>(y))),</span> <span class="line" id="L152"> );</span> <span class="line" id="L153"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, <span class="tok-builtin">@bitCast</span>(product));</span> <span class="line" id="L154"> },</span> <span class="line" id="L155"> }</span> <span class="line" id="L156"> }</span> <span class="line" id="L157"></span> <span class="line" id="L158"> <span class="tok-comment">/// clmulSoft128_64 is faster on platforms with no native 128-bit registers.</span></span> <span class="line" id="L159"> <span class="tok-kw">const</span> clmulSoft = <span class="tok-kw">switch</span> (builtin.cpu.arch) {</span> <span class="line" id="L160"> .wasm32, .wasm64 => clmulSoft128_64,</span> <span class="line" id="L161"> <span class="tok-kw">else</span> => impl: {</span> <span class="line" id="L162"> <span class="tok-kw">const</span> vector_size = std.simd.suggestVectorSize(<span class="tok-type">u128</span>) <span class="tok-kw">orelse</span> <span class="tok-number">0</span>;</span> <span class="line" id="L163"> <span class="tok-kw">if</span> (vector_size < <span class="tok-number">128</span>) <span class="tok-kw">break</span> :impl clmulSoft128_64;</span> <span class="line" id="L164"> <span class="tok-kw">break</span> :impl clmulSoft128;</span> <span class="line" id="L165"> },</span> <span class="line" id="L166"> };</span> <span class="line" id="L167"></span> <span class="line" id="L168"> <span class="tok-comment">// Software carryless multiplication of two 64-bit integers using native 128-bit registers.</span> </span> <span class="line" id="L169"> <span class="tok-kw">fn</span> <span class="tok-fn">clmulSoft128</span>(x_: <span class="tok-type">u128</span>, y_: <span class="tok-type">u128</span>, <span class="tok-kw">comptime</span> half: Selector) <span class="tok-type">u128</span> {</span> <span class="line" id="L170"> <span class="tok-kw">const</span> x = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(<span class="tok-kw">if</span> (half == .hi <span class="tok-kw">or</span> half == .hi_lo) x_ >> <span class="tok-number">64</span> <span class="tok-kw">else</span> x_));</span> <span class="line" id="L171"> <span class="tok-kw">const</span> y = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(<span class="tok-kw">if</span> (half == .hi) y_ >> <span class="tok-number">64</span> <span class="tok-kw">else</span> y_));</span> <span class="line" id="L172"></span> <span class="line" id="L173"> <span class="tok-kw">const</span> x0 = x & <span class="tok-number">0x1111111111111110</span>;</span> <span class="line" id="L174"> <span class="tok-kw">const</span> x1 = x & <span class="tok-number">0x2222222222222220</span>;</span> <span class="line" id="L175"> <span class="tok-kw">const</span> x2 = x & <span class="tok-number">0x4444444444444440</span>;</span> <span class="line" id="L176"> <span class="tok-kw">const</span> x3 = x & <span class="tok-number">0x8888888888888880</span>;</span> <span class="line" id="L177"> <span class="tok-kw">const</span> y0 = y & <span class="tok-number">0x1111111111111111</span>;</span> <span class="line" id="L178"> <span class="tok-kw">const</span> y1 = y & <span class="tok-number">0x2222222222222222</span>;</span> <span class="line" id="L179"> <span class="tok-kw">const</span> y2 = y & <span class="tok-number">0x4444444444444444</span>;</span> <span class="line" id="L180"> <span class="tok-kw">const</span> y3 = y & <span class="tok-number">0x8888888888888888</span>;</span> <span class="line" id="L181"> <span class="tok-kw">const</span> z0 = (x0 * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, y0)) ^ (x1 * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, y3)) ^ (x2 * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, y2)) ^ (x3 * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, y1));</span> <span class="line" id="L182"> <span class="tok-kw">const</span> z1 = (x0 * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, y1)) ^ (x1 * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, y0)) ^ (x2 * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, y3)) ^ (x3 * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, y2));</span> <span class="line" id="L183"> <span class="tok-kw">const</span> z2 = (x0 * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, y2)) ^ (x1 * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, y1)) ^ (x2 * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, y0)) ^ (x3 * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, y3));</span> <span class="line" id="L184"> <span class="tok-kw">const</span> z3 = (x0 * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, y3)) ^ (x1 * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, y2)) ^ (x2 * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, y1)) ^ (x3 * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, y0));</span> <span class="line" id="L185"></span> <span class="line" id="L186"> <span class="tok-kw">const</span> x0_mask = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0</span>) -% (x & <span class="tok-number">1</span>);</span> <span class="line" id="L187"> <span class="tok-kw">const</span> x1_mask = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0</span>) -% ((x >> <span class="tok-number">1</span>) & <span class="tok-number">1</span>);</span> <span class="line" id="L188"> <span class="tok-kw">const</span> x2_mask = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0</span>) -% ((x >> <span class="tok-number">2</span>) & <span class="tok-number">1</span>);</span> <span class="line" id="L189"> <span class="tok-kw">const</span> x3_mask = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0</span>) -% ((x >> <span class="tok-number">3</span>) & <span class="tok-number">1</span>);</span> <span class="line" id="L190"> <span class="tok-kw">const</span> extra = (x0_mask & y) ^ (<span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, x1_mask & y) << <span class="tok-number">1</span>) ^</span> <span class="line" id="L191"> (<span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, x2_mask & y) << <span class="tok-number">2</span>) ^ (<span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, x3_mask & y) << <span class="tok-number">3</span>);</span> <span class="line" id="L192"></span> <span class="line" id="L193"> <span class="tok-kw">return</span> (z0 & <span class="tok-number">0x11111111111111111111111111111111</span>) ^</span> <span class="line" id="L194"> (z1 & <span class="tok-number">0x22222222222222222222222222222222</span>) ^</span> <span class="line" id="L195"> (z2 & <span class="tok-number">0x44444444444444444444444444444444</span>) ^</span> <span class="line" id="L196"> (z3 & <span class="tok-number">0x88888888888888888888888888888888</span>) ^ extra;</span> <span class="line" id="L197"> }</span> <span class="line" id="L198"></span> <span class="line" id="L199"> <span class="tok-comment">// Software carryless multiplication of two 32-bit integers.</span> </span> <span class="line" id="L200"> <span class="tok-kw">fn</span> <span class="tok-fn">clmulSoft32</span>(x: <span class="tok-type">u32</span>, y: <span class="tok-type">u32</span>) <span class="tok-type">u64</span> {</span> <span class="line" id="L201"> <span class="tok-kw">const</span> mulWide = math.mulWide;</span> <span class="line" id="L202"> <span class="tok-kw">const</span> a0 = x & <span class="tok-number">0x11111111</span>;</span> <span class="line" id="L203"> <span class="tok-kw">const</span> a1 = x & <span class="tok-number">0x22222222</span>;</span> <span class="line" id="L204"> <span class="tok-kw">const</span> a2 = x & <span class="tok-number">0x44444444</span>;</span> <span class="line" id="L205"> <span class="tok-kw">const</span> a3 = x & <span class="tok-number">0x88888888</span>;</span> <span class="line" id="L206"> <span class="tok-kw">const</span> b0 = y & <span class="tok-number">0x11111111</span>;</span> <span class="line" id="L207"> <span class="tok-kw">const</span> b1 = y & <span class="tok-number">0x22222222</span>;</span> <span class="line" id="L208"> <span class="tok-kw">const</span> b2 = y & <span class="tok-number">0x44444444</span>;</span> <span class="line" id="L209"> <span class="tok-kw">const</span> b3 = y & <span class="tok-number">0x88888888</span>;</span> <span class="line" id="L210"> <span class="tok-kw">const</span> c0 = mulWide(<span class="tok-type">u32</span>, a0, b0) ^ mulWide(<span class="tok-type">u32</span>, a1, b3) ^ mulWide(<span class="tok-type">u32</span>, a2, b2) ^ mulWide(<span class="tok-type">u32</span>, a3, b1);</span> <span class="line" id="L211"> <span class="tok-kw">const</span> c1 = mulWide(<span class="tok-type">u32</span>, a0, b1) ^ mulWide(<span class="tok-type">u32</span>, a1, b0) ^ mulWide(<span class="tok-type">u32</span>, a2, b3) ^ mulWide(<span class="tok-type">u32</span>, a3, b2);</span> <span class="line" id="L212"> <span class="tok-kw">const</span> c2 = mulWide(<span class="tok-type">u32</span>, a0, b2) ^ mulWide(<span class="tok-type">u32</span>, a1, b1) ^ mulWide(<span class="tok-type">u32</span>, a2, b0) ^ mulWide(<span class="tok-type">u32</span>, a3, b3);</span> <span class="line" id="L213"> <span class="tok-kw">const</span> c3 = mulWide(<span class="tok-type">u32</span>, a0, b3) ^ mulWide(<span class="tok-type">u32</span>, a1, b2) ^ mulWide(<span class="tok-type">u32</span>, a2, b1) ^ mulWide(<span class="tok-type">u32</span>, a3, b0);</span> <span class="line" id="L214"> <span class="tok-kw">return</span> (c0 & <span class="tok-number">0x1111111111111111</span>) \| (c1 & <span class="tok-number">0x2222222222222222</span>) \| (c2 & <span class="tok-number">0x4444444444444444</span>) \| (c3 & <span class="tok-number">0x8888888888888888</span>);</span> <span class="line" id="L215"> }</span> <span class="line" id="L216"></span> <span class="line" id="L217"> <span class="tok-comment">// Software carryless multiplication of two 128-bit integers using 64-bit registers.</span> </span> <span class="line" id="L218"> <span class="tok-kw">fn</span> <span class="tok-fn">clmulSoft128_64</span>(x_: <span class="tok-type">u128</span>, y_: <span class="tok-type">u128</span>, <span class="tok-kw">comptime</span> half: Selector) <span class="tok-type">u128</span> {</span> <span class="line" id="L219"> <span class="tok-kw">const</span> a = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(<span class="tok-kw">if</span> (half == .hi <span class="tok-kw">or</span> half == .hi_lo) x_ >> <span class="tok-number">64</span> <span class="tok-kw">else</span> x_));</span> <span class="line" id="L220"> <span class="tok-kw">const</span> b = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(<span class="tok-kw">if</span> (half == .hi) y_ >> <span class="tok-number">64</span> <span class="tok-kw">else</span> y_));</span> <span class="line" id="L221"> <span class="tok-kw">const</span> a0 = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@truncate</span>(a));</span> <span class="line" id="L222"> <span class="tok-kw">const</span> a1 = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@truncate</span>(a >> <span class="tok-number">32</span>));</span> <span class="line" id="L223"> <span class="tok-kw">const</span> b0 = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@truncate</span>(b));</span> <span class="line" id="L224"> <span class="tok-kw">const</span> b1 = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@truncate</span>(b >> <span class="tok-number">32</span>));</span> <span class="line" id="L225"> <span class="tok-kw">const</span> lo = clmulSoft32(a0, b0);</span> <span class="line" id="L226"> <span class="tok-kw">const</span> hi = clmulSoft32(a1, b1);</span> <span class="line" id="L227"> <span class="tok-kw">const</span> mid = clmulSoft32(a0 ^ a1, b0 ^ b1) ^ lo ^ hi;</span> <span class="line" id="L228"> <span class="tok-kw">const</span> res_lo = lo ^ (mid << <span class="tok-number">32</span>);</span> <span class="line" id="L229"> <span class="tok-kw">const</span> res_hi = hi ^ (mid >> <span class="tok-number">32</span>);</span> <span class="line" id="L230"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, res_lo) \| (<span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, res_hi) << <span class="tok-number">64</span>);</span> <span class="line" id="L231"> }</span> <span class="line" id="L232"></span> <span class="line" id="L233"> <span class="tok-kw">const</span> I256 = <span class="tok-kw">struct</span> {</span> <span class="line" id="L234"> hi: <span class="tok-type">u128</span>,</span> <span class="line" id="L235"> lo: <span class="tok-type">u128</span>,</span> <span class="line" id="L236"> mid: <span class="tok-type">u128</span>,</span> <span class="line" id="L237"> };</span> <span class="line" id="L238"></span> <span class="line" id="L239"> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">xor256</span>(x: I256, y: I256) <span class="tok-type">void</span> {</span> <span class="line" id="L240"> x. = I256{</span> <span class="line" id="L241"> .hi = x.hi ^ y.hi,</span> <span class="line" id="L242"> .lo = x.lo ^ y.lo,</span> <span class="line" id="L243"> .mid = x.mid ^ y.mid,</span> <span class="line" id="L244"> };</span> <span class="line" id="L245"> }</span> <span class="line" id="L246"></span> <span class="line" id="L247"> <span class="tok-comment">// Square a 128-bit integer in GF(2^128).</span> </span> <span class="line" id="L248"> <span class="tok-kw">fn</span> <span class="tok-fn">clsq128</span>(x: <span class="tok-type">u128</span>) I256 {</span> <span class="line" id="L249"> <span class="tok-kw">return</span> .{</span> <span class="line" id="L250"> .hi = clmul(x, x, .hi),</span> <span class="line" id="L251"> .lo = clmul(x, x, .lo),</span> <span class="line" id="L252"> .mid = <span class="tok-number">0</span>,</span> <span class="line" id="L253"> };</span> <span class="line" id="L254"> }</span> <span class="line" id="L255"></span> <span class="line" id="L256"> <span class="tok-comment">// Multiply two 128-bit integers in GF(2^128).</span> </span> <span class="line" id="L257"> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">clmul128</span>(x: <span class="tok-type">u128</span>, y: <span class="tok-type">u128</span>) I256 {</span> <span class="line" id="L258"> <span class="tok-kw">if</span> (mul_algorithm == .karatsuba) {</span> <span class="line" id="L259"> <span class="tok-kw">const</span> x_hi = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(x >> <span class="tok-number">64</span>));</span> <span class="line" id="L260"> <span class="tok-kw">const</span> y_hi = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(y >> <span class="tok-number">64</span>));</span> <span class="line" id="L261"> <span class="tok-kw">const</span> r_lo = clmul(x, y, .lo);</span> <span class="line" id="L262"> <span class="tok-kw">const</span> r_hi = clmul(x, y, .hi);</span> <span class="line" id="L263"> <span class="tok-kw">const</span> r_mid = clmul(x ^ x_hi, y ^ y_hi, .lo) ^ r_lo ^ r_hi;</span> <span class="line" id="L264"> <span class="tok-kw">return</span> .{</span> <span class="line" id="L265"> .hi = r_hi,</span> <span class="line" id="L266"> .lo = r_lo,</span> <span class="line" id="L267"> .mid = r_mid,</span> <span class="line" id="L268"> };</span> <span class="line" id="L269"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L270"> <span class="tok-kw">return</span> .{</span> <span class="line" id="L271"> .hi = clmul(x, y, .hi),</span> <span class="line" id="L272"> .lo = clmul(x, y, .lo),</span> <span class="line" id="L273"> .mid = clmul(x, y, .hi_lo) ^ clmul(y, x, .hi_lo),</span> <span class="line" id="L274"> };</span> <span class="line" id="L275"> }</span> <span class="line" id="L276"> }</span> <span class="line" id="L277"></span> <span class="line" id="L278"> <span class="tok-comment">// Reduce a 256-bit representative of a polynomial modulo the irreducible polynomial x^128 + x^127 + x^126 + x^121 + 1.</span> </span> <span class="line" id="L279"> <span class="tok-comment">// This is done using Shay Gueron's black magic demysticated here:</span> </span> <span class="line" id="L280"> <span class="tok-comment">// https://blog.quarkslab.com/reversing-a-finite-field-multiplication-optimization.html</span> </span> <span class="line" id="L281"> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">reduce</span>(x: I256) <span class="tok-type">u128</span> {</span> <span class="line" id="L282"> <span class="tok-kw">const</span> hi = x.hi ^ (x.mid >> <span class="tok-number">64</span>);</span> <span class="line" id="L283"> <span class="tok-kw">const</span> lo = x.lo ^ (x.mid << <span class="tok-number">64</span>);</span> <span class="line" id="L284"> <span class="tok-kw">const</span> p64 = (((<span class="tok-number">1</span> << <span class="tok-number">121</span>) \| (<span class="tok-number">1</span> << <span class="tok-number">126</span>) \| (<span class="tok-number">1</span> << <span class="tok-number">127</span>)) >> <span class="tok-number">64</span>);</span> <span class="line" id="L285"> <span class="tok-kw">const</span> a = clmul(lo, p64, .lo);</span> <span class="line" id="L286"> <span class="tok-kw">const</span> b = ((lo << <span class="tok-number">64</span>) \| (lo >> <span class="tok-number">64</span>)) ^ a;</span> <span class="line" id="L287"> <span class="tok-kw">const</span> c = clmul(b, p64, .lo);</span> <span class="line" id="L288"> <span class="tok-kw">const</span> d = ((b << <span class="tok-number">64</span>) \| (b >> <span class="tok-number">64</span>)) ^ c;</span> <span class="line" id="L289"> <span class="tok-kw">return</span> d ^ hi;</span> <span class="line" id="L290"> }</span> <span class="line" id="L291"></span> <span class="line" id="L292"> <span class="tok-kw">const</span> has_pclmul = std.Target.x86.featureSetHas(builtin.cpu.features, .pclmul);</span> <span class="line" id="L293"> <span class="tok-kw">const</span> has_avx = std.Target.x86.featureSetHas(builtin.cpu.features, .avx);</span> <span class="line" id="L294"> <span class="tok-kw">const</span> has_armaes = std.Target.aarch64.featureSetHas(builtin.cpu.features, .aes);</span> <span class="line" id="L295"> <span class="tok-comment">// C backend doesn't currently support passing vectors to inline asm.</span> </span> <span class="line" id="L296"> <span class="tok-kw">const</span> clmul = <span class="tok-kw">if</span> (builtin.cpu.arch == .x86_64 <span class="tok-kw">and</span> builtin.zig_backend != .stage2_c <span class="tok-kw">and</span> has_pclmul <span class="tok-kw">and</span> has_avx) impl: {</span> <span class="line" id="L297"> <span class="tok-kw">break</span> :impl clmulPclmul;</span> <span class="line" id="L298"> } <span class="tok-kw">else</span> <span class="tok-kw">if</span> (builtin.cpu.arch == .aarch64 <span class="tok-kw">and</span> builtin.zig_backend != .stage2_c <span class="tok-kw">and</span> has_armaes) impl: {</span> <span class="line" id="L299"> <span class="tok-kw">break</span> :impl clmulPmull;</span> <span class="line" id="L300"> } <span class="tok-kw">else</span> impl: {</span> <span class="line" id="L301"> <span class="tok-kw">break</span> :impl clmulSoft;</span> <span class="line" id="L302"> };</span> <span class="line" id="L303"></span> <span class="line" id="L304"> <span class="tok-comment">// Process 16 byte blocks.</span> </span> <span class="line" id="L305"> <span class="tok-kw">fn</span> <span class="tok-fn">blocks</span>(st: Self, msg: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L306"> assert(msg.len % <span class="tok-number">16</span> == <span class="tok-number">0</span>); <span class="tok-comment">// GHASH blocks() expects full blocks</span> </span> <span class="line" id="L307"> <span class="tok-kw">var</span> acc = st.acc;</span> <span class="line" id="L308"></span> <span class="line" id="L309"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L310"></span> <span class="line" id="L311"> <span class="tok-kw">if</span> (builtin.mode != .ReleaseSmall <span class="tok-kw">and</span> msg.len >= agg_16_threshold block_length) {</span> <span class="line" id="L312"> <span class="tok-comment">// 16-blocks aggregated reduction</span> </span> <span class="line" id="L313"> <span class="tok-kw">while</span> (i + <span class="tok-number">256</span> <= msg.len) : (i += <span class="tok-number">256</span>) {</span> <span class="line" id="L314"> <span class="tok-kw">var</span> u = clmul128(acc ^ mem.readInt(<span class="tok-type">u128</span>, msg[i..][<span class="tok-number">0</span>..<span class="tok-number">16</span>], endian), st.hx[<span class="tok-number">15</span> - <span class="tok-number">0</span>]);</span> <span class="line" id="L315"> <span class="tok-kw">comptime</span> <span class="tok-kw">var</span> j = <span class="tok-number">1</span>;</span> <span class="line" id="L316"> <span class="tok-kw">inline</span> <span class="tok-kw">while</span> (j < <span class="tok-number">16</span>) : (j += <span class="tok-number">1</span>) {</span> <span class="line" id="L317"> xor256(&u, clmul128(mem.readInt(<span class="tok-type">u128</span>, msg[i..][j * <span class="tok-number">16</span> ..][<span class="tok-number">0</span>..<span class="tok-number">16</span>], endian), st.hx[<span class="tok-number">15</span> - j]));</span> <span class="line" id="L318"> }</span> <span class="line" id="L319"> acc = reduce(u);</span> <span class="line" id="L320"> }</span> <span class="line" id="L321"> } <span class="tok-kw">else</span> <span class="tok-kw">if</span> (builtin.mode != .ReleaseSmall <span class="tok-kw">and</span> msg.len >= agg_8_threshold * block_length) {</span> <span class="line" id="L322"> <span class="tok-comment">// 8-blocks aggregated reduction</span> </span> <span class="line" id="L323"> <span class="tok-kw">while</span> (i + <span class="tok-number">128</span> <= msg.len) : (i += <span class="tok-number">128</span>) {</span> <span class="line" id="L324"> <span class="tok-kw">var</span> u = clmul128(acc ^ mem.readInt(<span class="tok-type">u128</span>, msg[i..][<span class="tok-number">0</span>..<span class="tok-number">16</span>], endian), st.hx[<span class="tok-number">7</span> - <span class="tok-number">0</span>]);</span> <span class="line" id="L325"> <span class="tok-kw">comptime</span> <span class="tok-kw">var</span> j = <span class="tok-number">1</span>;</span> <span class="line" id="L326"> <span class="tok-kw">inline</span> <span class="tok-kw">while</span> (j < <span class="tok-number">8</span>) : (j += <span class="tok-number">1</span>) {</span> <span class="line" id="L327"> xor256(&u, clmul128(mem.readInt(<span class="tok-type">u128</span>, msg[i..][j * <span class="tok-number">16</span> ..][<span class="tok-number">0</span>..<span class="tok-number">16</span>], endian), st.hx[<span class="tok-number">7</span> - j]));</span> <span class="line" id="L328"> }</span> <span class="line" id="L329"> acc = reduce(u);</span> <span class="line" id="L330"> }</span> <span class="line" id="L331"> } <span class="tok-kw">else</span> <span class="tok-kw">if</span> (builtin.mode != .ReleaseSmall <span class="tok-kw">and</span> msg.len >= agg_4_threshold * block_length) {</span> <span class="line" id="L332"> <span class="tok-comment">// 4-blocks aggregated reduction</span> </span> <span class="line" id="L333"> <span class="tok-kw">while</span> (i + <span class="tok-number">64</span> <= msg.len) : (i += <span class="tok-number">64</span>) {</span> <span class="line" id="L334"> <span class="tok-kw">var</span> u = clmul128(acc ^ mem.readInt(<span class="tok-type">u128</span>, msg[i..][<span class="tok-number">0</span>..<span class="tok-number">16</span>], endian), st.hx[<span class="tok-number">3</span> - <span class="tok-number">0</span>]);</span> <span class="line" id="L335"> <span class="tok-kw">comptime</span> <span class="tok-kw">var</span> j = <span class="tok-number">1</span>;</span> <span class="line" id="L336"> <span class="tok-kw">inline</span> <span class="tok-kw">while</span> (j < <span class="tok-number">4</span>) : (j += <span class="tok-number">1</span>) {</span> <span class="line" id="L337"> xor256(&u, clmul128(mem.readInt(<span class="tok-type">u128</span>, msg[i..][j * <span class="tok-number">16</span> ..][<span class="tok-number">0</span>..<span class="tok-number">16</span>], endian), st.hx[<span class="tok-number">3</span> - j]));</span> <span class="line" id="L338"> }</span> <span class="line" id="L339"> acc = reduce(u);</span> <span class="line" id="L340"> }</span> <span class="line" id="L341"> }</span> <span class="line" id="L342"> <span class="tok-comment">// 2-blocks aggregated reduction</span> </span> <span class="line" id="L343"> <span class="tok-kw">while</span> (i + <span class="tok-number">32</span> <= msg.len) : (i += <span class="tok-number">32</span>) {</span> <span class="line" id="L344"> <span class="tok-kw">var</span> u = clmul128(acc ^ mem.readInt(<span class="tok-type">u128</span>, msg[i..][<span class="tok-number">0</span>..<span class="tok-number">16</span>], endian), st.hx[<span class="tok-number">1</span> - <span class="tok-number">0</span>]);</span> <span class="line" id="L345"> <span class="tok-kw">comptime</span> <span class="tok-kw">var</span> j = <span class="tok-number">1</span>;</span> <span class="line" id="L346"> <span class="tok-kw">inline</span> <span class="tok-kw">while</span> (j < <span class="tok-number">2</span>) : (j += <span class="tok-number">1</span>) {</span> <span class="line" id="L347"> xor256(&u, clmul128(mem.readInt(<span class="tok-type">u128</span>, msg[i..][j * <span class="tok-number">16</span> ..][<span class="tok-number">0</span>..<span class="tok-number">16</span>], endian), st.hx[<span class="tok-number">1</span> - j]));</span> <span class="line" id="L348"> }</span> <span class="line" id="L349"> acc = reduce(u);</span> <span class="line" id="L350"> }</span> <span class="line" id="L351"> <span class="tok-comment">// remaining blocks</span> </span> <span class="line" id="L352"> <span class="tok-kw">if</span> (i < msg.len) {</span> <span class="line" id="L353"> <span class="tok-kw">const</span> u = clmul128(acc ^ mem.readInt(<span class="tok-type">u128</span>, msg[i..][<span class="tok-number">0</span>..<span class="tok-number">16</span>], endian), st.hx[<span class="tok-number">0</span>]);</span> <span class="line" id="L354"> acc = reduce(u);</span> <span class="line" id="L355"> i += <span class="tok-number">16</span>;</span> <span class="line" id="L356"> }</span> <span class="line" id="L357"> assert(i == msg.len);</span> <span class="line" id="L358"> st.acc = acc;</span> <span class="line" id="L359"> }</span> <span class="line" id="L360"></span> <span class="line" id="L361"> <span class="tok-comment">/// Absorb a message into the GHASH state.</span></span> <span class="line" id="L362"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">update</span>(st: Self, m: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L363"> <span class="tok-kw">var</span> mb = m;</span> <span class="line" id="L364"></span> <span class="line" id="L365"> <span class="tok-kw">if</span> (st.leftover > <span class="tok-number">0</span>) {</span> <span class="line" id="L366"> <span class="tok-kw">const</span> want = <span class="tok-builtin">@min</span>(block_length - st.leftover, mb.len);</span> <span class="line" id="L367"> <span class="tok-kw">const</span> mc = mb[<span class="tok-number">0</span>..want];</span> <span class="line" id="L368"> <span class="tok-kw">for</span> (mc, <span class="tok-number">0</span>..) \|x, i\| {</span> <span class="line" id="L369"> st.buf[st.leftover + i] = x;</span> <span class="line" id="L370"> }</span> <span class="line" id="L371"> mb = mb[want..];</span> <span class="line" id="L372"> st.leftover += want;</span> <span class="line" id="L373"> <span class="tok-kw">if</span> (st.leftover < block_length) {</span> <span class="line" id="L374"> <span class="tok-kw">return</span>;</span> <span class="line" id="L375"> }</span> <span class="line" id="L376"> st.blocks(&st.buf);</span> <span class="line" id="L377"> st.leftover = <span class="tok-number">0</span>;</span> <span class="line" id="L378"> }</span> <span class="line" id="L379"> <span class="tok-kw">if</span> (mb.len >= block_length) {</span> <span class="line" id="L380"> <span class="tok-kw">const</span> want = mb.len & ~(block_length - <span class="tok-number">1</span>);</span> <span class="line" id="L381"> st.blocks(mb[<span class="tok-number">0</span>..want]);</span> <span class="line" id="L382"> mb = mb[want..];</span> <span class="line" id="L383"> }</span> <span class="line" id="L384"> <span class="tok-kw">if</span> (mb.len > <span class="tok-number">0</span>) {</span> <span class="line" id="L385"> <span class="tok-kw">for</span> (mb, <span class="tok-number">0</span>..) \|x, i\| {</span> <span class="line" id="L386"> st.buf[st.leftover + i] = x;</span> <span class="line" id="L387"> }</span> <span class="line" id="L388"> st.leftover += mb.len;</span> <span class="line" id="L389"> }</span> <span class="line" id="L390"> }</span> <span class="line" id="L391"></span> <span class="line" id="L392"> <span class="tok-comment">/// Zero-pad to align the next input to the first byte of a block</span></span> <span class="line" id="L393"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">pad</span>(st: Self) <span class="tok-type">void</span> {</span> <span class="line" id="L394"> <span class="tok-kw">if</span> (st.leftover == <span class="tok-number">0</span>) {</span> <span class="line" id="L395"> <span class="tok-kw">return</span>;</span> <span class="line" id="L396"> }</span> <span class="line" id="L397"> <span class="tok-kw">var</span> i = st.leftover;</span> <span class="line" id="L398"> <span class="tok-kw">while</span> (i < block_length) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L399"> st.buf[i] = <span class="tok-number">0</span>;</span> <span class="line" id="L400"> }</span> <span class="line" id="L401"> st.blocks(&st.buf);</span> <span class="line" id="L402"> st.leftover = <span class="tok-number">0</span>;</span> <span class="line" id="L403"> }</span> <span class="line" id="L404"></span> <span class="line" id="L405"> <span class="tok-comment">/// Compute the GHASH of the entire input.</span></span> <span class="line" id="L406"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">final</span>(st: Self, out: [mac_length]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L407"> st.pad();</span> <span class="line" id="L408"> mem.writeInt(<span class="tok-type">u128</span>, out[<span class="tok-number">0</span>..<span class="tok-number">16</span>], st.acc, endian);</span> <span class="line" id="L409"></span> <span class="line" id="L410"> utils.secureZero(<span class="tok-type">u8</span>, <span class="tok-builtin">@as</span>([]<span class="tok-type">u8</span>, <span class="tok-builtin">@ptrCast</span>(st))[<span class="tok-number">0</span>..<span class="tok-builtin">@sizeOf</span>(Self)]);</span> <span class="line" id="L411"> }</span> <span class="line" id="L412"></span> <span class="line" id="L413"> <span class="tok-comment">/// Compute the GHASH of a message.</span></span> <span class="line" id="L414"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">create</span>(out: [mac_length]<span class="tok-type">u8</span>, msg: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, key: <span class="tok-kw">const</span> [key_length]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L415"> <span class="tok-kw">var</span> st = Self.init(key);</span> <span class="line" id="L416"> st.update(msg);</span> <span class="line" id="L417"> st.final(out);</span> <span class="line" id="L418"> }</span> <span class="line" id="L419"> };</span> <span class="line" id="L420">}</span> <span class="line" id="L421"></span> <span class="line" id="L422"><span class="tok-kw">const</span> htest = <span class="tok-builtin">@import</span>(<span class="tok-str">"test.zig"</span>);</span> <span class="line" id="L423"></span> <span class="line" id="L424"><span class="tok-kw">test</span> <span class="tok-str">"ghash"</span> {</span> <span class="line" id="L425"> <span class="tok-kw">const</span> key = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x42</span>} * <span class="tok-number">16</span>;</span> <span class="line" id="L426"> <span class="tok-kw">const</span> m = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x69</span>} ** <span class="tok-number">256</span>;</span> <span class="line" id="L427"></span> <span class="line" id="L428"> <span class="tok-kw">var</span> st = Ghash.init(&key);</span> <span class="line" id="L429"> st.update(&m);</span> <span class="line" id="L430"> <span class="tok-kw">var</span> out: [<span class="tok-number">16</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L431"> st.final(&out);</span> <span class="line" id="L432"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"889295fa746e8b174bf4ec80a65dea41"</span>, &out);</span> <span class="line" id="L433"></span> <span class="line" id="L434"> st = Ghash.init(&key);</span> <span class="line" id="L435"> st.update(m[<span class="tok-number">0</span>..<span class="tok-number">100</span>]);</span> <span class="line" id="L436"> st.update(m[<span class="tok-number">100</span>..]);</span> <span class="line" id="L437"> st.final(&out);</span> <span class="line" id="L438"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"889295fa746e8b174bf4ec80a65dea41"</span>, &out);</span> <span class="line" id="L439">}</span> <span class="line" id="L440"></span> <span class="line" id="L441"><span class="tok-kw">test</span> <span class="tok-str">"ghash2"</span> {</span> <span class="line" id="L442"> <span class="tok-kw">var</span> key: [<span class="tok-number">16</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L443"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L444"> <span class="tok-kw">while</span> (i < key.len) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L445"> key[i] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>(i * <span class="tok-number">15</span> + <span class="tok-number">1</span>));</span> <span class="line" id="L446"> }</span> <span class="line" id="L447"> <span class="tok-kw">const</span> tvs = [_]<span class="tok-kw">struct</span> { len: <span class="tok-type">usize</span>, hash: [:<span class="tok-number">0</span>]<span class="tok-kw">const</span> <span class="tok-type">u8</span> }{</span> <span class="line" id="L448"> .{ .len = <span class="tok-number">5263</span>, .hash = <span class="tok-str">"b9395f37c131cd403a327ccf82ec016a"</span> },</span> <span class="line" id="L449"> .{ .len = <span class="tok-number">1361</span>, .hash = <span class="tok-str">"8c24cb3664e9a36e32ddef0c8178ab33"</span> },</span> <span class="line" id="L450"> .{ .len = <span class="tok-number">1344</span>, .hash = <span class="tok-str">"015d7243b52d62eee8be33a66a9658cc"</span> },</span> <span class="line" id="L451"> .{ .len = <span class="tok-number">1000</span>, .hash = <span class="tok-str">"56e148799944193f351f2014ef9dec9d"</span> },</span> <span class="line" id="L452"> .{ .len = <span class="tok-number">512</span>, .hash = <span class="tok-str">"ca4882ce40d37546185c57709d17d1ca"</span> },</span> <span class="line" id="L453"> .{ .len = <span class="tok-number">128</span>, .hash = <span class="tok-str">"d36dc3aac16cfe21a75cd5562d598c1c"</span> },</span> <span class="line" id="L454"> .{ .len = <span class="tok-number">111</span>, .hash = <span class="tok-str">"6e2bea99700fd19cf1694e7b56543320"</span> },</span> <span class="line" id="L455"> .{ .len = <span class="tok-number">80</span>, .hash = <span class="tok-str">"aa28f4092a7cca155f3de279cf21aa17"</span> },</span> <span class="line" id="L456"> .{ .len = <span class="tok-number">16</span>, .hash = <span class="tok-str">"9d7eb5ed121a52a4b0996e4ec9b98911"</span> },</span> <span class="line" id="L457"> .{ .len = <span class="tok-number">1</span>, .hash = <span class="tok-str">"968a203e5c7a98b6d4f3112f4d6b89a7"</span> },</span> <span class="line" id="L458"> .{ .len = <span class="tok-number">0</span>, .hash = <span class="tok-str">"00000000000000000000000000000000"</span> },</span> <span class="line" id="L459"> };</span> <span class="line" id="L460"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (tvs) \|tv\| {</span> <span class="line" id="L461"> <span class="tok-kw">var</span> m: [tv.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L462"> i = <span class="tok-number">0</span>;</span> <span class="line" id="L463"> <span class="tok-kw">while</span> (i < m.len) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L464"> m[i] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>(i % <span class="tok-number">254</span> + <span class="tok-number">1</span>));</span> <span class="line" id="L465"> }</span> <span class="line" id="L466"> <span class="tok-kw">var</span> st = Ghash.init(&key);</span> <span class="line" id="L467"> st.update(&m);</span> <span class="line" id="L468"> <span class="tok-kw">var</span> out: [<span class="tok-number">16</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L469"> st.final(&out);</span> <span class="line" id="L470"> <span class="tok-kw">try</span> htest.assertEqual(tv.hash, &out);</span> <span class="line" id="L471"> }</span> <span class="line" id="L472">}</span> <span class="line" id="L473"></span> <span class="line" id="L474"><span class="tok-kw">test</span> <span class="tok-str">"polyval"</span> {</span> <span class="line" id="L475"> <span class="tok-kw">const</span> key = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x42</span>} <span class="tok-number">16</span>;</span> <span class="line" id="L476"> <span class="tok-kw">const</span> m = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x69</span>} <span class="tok-number">256</span>;</span> <span class="line" id="L477"></span> <span class="line" id="L478"> <span class="tok-kw">var</span> st = Polyval.init(&key);</span> <span class="line" id="L479"> st.update(&m);</span> <span class="line" id="L480"> <span class="tok-kw">var</span> out: [<span class="tok-number">16</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L481"> st.final(&out);</span> <span class="line" id="L482"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"0713c82b170eef25c8955ddf72c85ccb"</span>, &out);</span> <span class="line" id="L483"></span> <span class="line" id="L484"> st = Polyval.init(&key);</span> <span class="line" id="L485"> st.update(m[<span class="tok-number">0</span>..<span class="tok-number">100</span>]);</span> <span class="line" id="L486"> st.update(m[<span class="tok-number">100</span>..]);</span> <span class="line" id="L487"> st.final(&out);</span> <span class="line" id="L488"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"0713c82b170eef25c8955ddf72c85ccb"</span>, &out);</span> <span class="line" id="L489">}</span> <span class="line" id="L490"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/crypto/sha1.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/sha1.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"../std.zig"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L3"><span class="tok-kw">const</span> math = std.math;</span> <span class="line" id="L4"></span> <span class="line" id="L5"><span class="tok-kw">const</span> RoundParam = <span class="tok-kw">struct</span> {</span> <span class="line" id="L6"> a: <span class="tok-type">usize</span>,</span> <span class="line" id="L7"> b: <span class="tok-type">usize</span>,</span> <span class="line" id="L8"> c: <span class="tok-type">usize</span>,</span> <span class="line" id="L9"> d: <span class="tok-type">usize</span>,</span> <span class="line" id="L10"> e: <span class="tok-type">usize</span>,</span> <span class="line" id="L11"> i: <span class="tok-type">u32</span>,</span> <span class="line" id="L12">};</span> <span class="line" id="L13"></span> <span class="line" id="L14"><span class="tok-kw">fn</span> <span class="tok-fn">roundParam</span>(a: <span class="tok-type">usize</span>, b: <span class="tok-type">usize</span>, c: <span class="tok-type">usize</span>, d: <span class="tok-type">usize</span>, e: <span class="tok-type">usize</span>, i: <span class="tok-type">u32</span>) RoundParam {</span> <span class="line" id="L15"> <span class="tok-kw">return</span> RoundParam{</span> <span class="line" id="L16"> .a = a,</span> <span class="line" id="L17"> .b = b,</span> <span class="line" id="L18"> .c = c,</span> <span class="line" id="L19"> .d = d,</span> <span class="line" id="L20"> .e = e,</span> <span class="line" id="L21"> .i = i,</span> <span class="line" id="L22"> };</span> <span class="line" id="L23">}</span> <span class="line" id="L24"></span> <span class="line" id="L25"><span class="tok-comment">/// The SHA-1 function is now considered cryptographically broken.</span></span> <span class="line" id="L26"><span class="tok-comment">/// Namely, it is feasible to find multiple inputs producing the same hash.</span></span> <span class="line" id="L27"><span class="tok-comment">/// For a fast-performing, cryptographically secure hash function, see SHA512/256, BLAKE2 or BLAKE3.</span></span> <span class="line" id="L28"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Sha1 = <span class="tok-kw">struct</span> {</span> <span class="line" id="L29"> <span class="tok-kw">const</span> Self = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L30"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> block_length = <span class="tok-number">64</span>;</span> <span class="line" id="L31"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> digest_length = <span class="tok-number">20</span>;</span> <span class="line" id="L32"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Options = <span class="tok-kw">struct</span> {};</span> <span class="line" id="L33"></span> <span class="line" id="L34"> s: [<span class="tok-number">5</span>]<span class="tok-type">u32</span>,</span> <span class="line" id="L35"> <span class="tok-comment">// Streaming Cache</span> </span> <span class="line" id="L36"> buf: [<span class="tok-number">64</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>,</span> <span class="line" id="L37"> buf_len: <span class="tok-type">u8</span> = <span class="tok-number">0</span>,</span> <span class="line" id="L38"> total_len: <span class="tok-type">u64</span> = <span class="tok-number">0</span>,</span> <span class="line" id="L39"></span> <span class="line" id="L40"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">init</span>(options: Options) Self {</span> <span class="line" id="L41"> _ = options;</span> <span class="line" id="L42"> <span class="tok-kw">return</span> Self{</span> <span class="line" id="L43"> .s = [_]<span class="tok-type">u32</span>{</span> <span class="line" id="L44"> <span class="tok-number">0x67452301</span>,</span> <span class="line" id="L45"> <span class="tok-number">0xEFCDAB89</span>,</span> <span class="line" id="L46"> <span class="tok-number">0x98BADCFE</span>,</span> <span class="line" id="L47"> <span class="tok-number">0x10325476</span>,</span> <span class="line" id="L48"> <span class="tok-number">0xC3D2E1F0</span>,</span> <span class="line" id="L49"> },</span> <span class="line" id="L50"> };</span> <span class="line" id="L51"> }</span> <span class="line" id="L52"></span> <span class="line" id="L53"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">hash</span>(b: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, out: [digest_length]<span class="tok-type">u8</span>, options: Options) <span class="tok-type">void</span> {</span> <span class="line" id="L54"> <span class="tok-kw">var</span> d = Sha1.init(options);</span> <span class="line" id="L55"> d.update(b);</span> <span class="line" id="L56"> d.final(out);</span> <span class="line" id="L57"> }</span> <span class="line" id="L58"></span> <span class="line" id="L59"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">update</span>(d: Self, b: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L60"> <span class="tok-kw">var</span> off: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L61"></span> <span class="line" id="L62"> <span class="tok-comment">// Partial buffer exists from previous update. Copy into buffer then hash.</span> </span> <span class="line" id="L63"> <span class="tok-kw">if</span> (d.buf_len != <span class="tok-number">0</span> <span class="tok-kw">and</span> d.buf_len + b.len >= <span class="tok-number">64</span>) {</span> <span class="line" id="L64"> off += <span class="tok-number">64</span> - d.buf_len;</span> <span class="line" id="L65"> <span class="tok-builtin">@memcpy</span>(d.buf[d.buf_len..][<span class="tok-number">0</span>..off], b[<span class="tok-number">0</span>..off]);</span> <span class="line" id="L66"></span> <span class="line" id="L67"> d.round(d.buf[<span class="tok-number">0</span>..]);</span> <span class="line" id="L68"> d.buf_len = <span class="tok-number">0</span>;</span> <span class="line" id="L69"> }</span> <span class="line" id="L70"></span> <span class="line" id="L71"> <span class="tok-comment">// Full middle blocks.</span> </span> <span class="line" id="L72"> <span class="tok-kw">while</span> (off + <span class="tok-number">64</span> <= b.len) : (off += <span class="tok-number">64</span>) {</span> <span class="line" id="L73"> d.round(b[off..][<span class="tok-number">0</span>..<span class="tok-number">64</span>]);</span> <span class="line" id="L74"> }</span> <span class="line" id="L75"></span> <span class="line" id="L76"> <span class="tok-comment">// Copy any remainder for next pass.</span> </span> <span class="line" id="L77"> <span class="tok-builtin">@memcpy</span>(d.buf[d.buf_len..][<span class="tok-number">0</span> .. b.len - off], b[off..]);</span> <span class="line" id="L78"> d.buf_len += <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>(b[off..].len));</span> <span class="line" id="L79"></span> <span class="line" id="L80"> d.total_len += b.len;</span> <span class="line" id="L81"> }</span> <span class="line" id="L82"></span> <span class="line" id="L83"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">peek</span>(d: Self) [digest_length]<span class="tok-type">u8</span> {</span> <span class="line" id="L84"> <span class="tok-kw">var</span> copy = d;</span> <span class="line" id="L85"> <span class="tok-kw">return</span> copy.finalResult();</span> <span class="line" id="L86"> }</span> <span class="line" id="L87"></span> <span class="line" id="L88"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">final</span>(d: Self, out: [digest_length]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L89"> <span class="tok-comment">// The buffer here will never be completely full.</span> </span> <span class="line" id="L90"> <span class="tok-builtin">@memset</span>(d.buf[d.buf_len..], <span class="tok-number">0</span>);</span> <span class="line" id="L91"></span> <span class="line" id="L92"> <span class="tok-comment">// Append padding bits.</span> </span> <span class="line" id="L93"> d.buf[d.buf_len] = <span class="tok-number">0x80</span>;</span> <span class="line" id="L94"> d.buf_len += <span class="tok-number">1</span>;</span> <span class="line" id="L95"></span> <span class="line" id="L96"> <span class="tok-comment">// > 448 mod 512 so need to add an extra round to wrap around.</span> </span> <span class="line" id="L97"> <span class="tok-kw">if</span> (<span class="tok-number">64</span> - d.buf_len < <span class="tok-number">8</span>) {</span> <span class="line" id="L98"> d.round(d.buf[<span class="tok-number">0</span>..]);</span> <span class="line" id="L99"> <span class="tok-builtin">@memset</span>(d.buf[<span class="tok-number">0</span>..], <span class="tok-number">0</span>);</span> <span class="line" id="L100"> }</span> <span class="line" id="L101"></span> <span class="line" id="L102"> <span class="tok-comment">// Append message length.</span> </span> <span class="line" id="L103"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">1</span>;</span> <span class="line" id="L104"> <span class="tok-kw">var</span> len = d.total_len >> <span class="tok-number">5</span>;</span> <span class="line" id="L105"> d.buf[<span class="tok-number">63</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>(d.total_len & <span class="tok-number">0x1f</span>)) << <span class="tok-number">3</span>;</span> <span class="line" id="L106"> <span class="tok-kw">while</span> (i < <span class="tok-number">8</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L107"> d.buf[<span class="tok-number">63</span> - i] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>(len & <span class="tok-number">0xff</span>));</span> <span class="line" id="L108"> len >>= <span class="tok-number">8</span>;</span> <span class="line" id="L109"> }</span> <span class="line" id="L110"></span> <span class="line" id="L111"> d.round(d.buf[<span class="tok-number">0</span>..]);</span> <span class="line" id="L112"></span> <span class="line" id="L113"> <span class="tok-kw">for</span> (d.s, <span class="tok-number">0</span>..) \|s, j\| {</span> <span class="line" id="L114"> mem.writeIntBig(<span class="tok-type">u32</span>, out[<span class="tok-number">4</span> * j ..][<span class="tok-number">0</span>..<span class="tok-number">4</span>], s);</span> <span class="line" id="L115"> }</span> <span class="line" id="L116"> }</span> <span class="line" id="L117"></span> <span class="line" id="L118"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">finalResult</span>(d: Self) [digest_length]<span class="tok-type">u8</span> {</span> <span class="line" id="L119"> <span class="tok-kw">var</span> result: [digest_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L120"> d.final(&result);</span> <span class="line" id="L121"> <span class="tok-kw">return</span> result;</span> <span class="line" id="L122"> }</span> <span class="line" id="L123"></span> <span class="line" id="L124"> <span class="tok-kw">fn</span> <span class="tok-fn">round</span>(d: Self, b: <span class="tok-kw">const</span> [<span class="tok-number">64</span>]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L125"> <span class="tok-kw">var</span> s: [<span class="tok-number">16</span>]<span class="tok-type">u32</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L126"></span> <span class="line" id="L127"> <span class="tok-kw">var</span> v: [<span class="tok-number">5</span>]<span class="tok-type">u32</span> = [_]<span class="tok-type">u32</span>{</span> <span class="line" id="L128"> d.s[<span class="tok-number">0</span>],</span> <span class="line" id="L129"> d.s[<span class="tok-number">1</span>],</span> <span class="line" id="L130"> d.s[<span class="tok-number">2</span>],</span> <span class="line" id="L131"> d.s[<span class="tok-number">3</span>],</span> <span class="line" id="L132"> d.s[<span class="tok-number">4</span>],</span> <span class="line" id="L133"> };</span> <span class="line" id="L134"></span> <span class="line" id="L135"> <span class="tok-kw">const</span> round0a = <span class="tok-kw">comptime</span> [_]RoundParam{</span> <span class="line" id="L136"> roundParam(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>),</span> <span class="line" id="L137"> roundParam(<span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">1</span>),</span> <span class="line" id="L138"> roundParam(<span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">2</span>),</span> <span class="line" id="L139"> roundParam(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">3</span>),</span> <span class="line" id="L140"> roundParam(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">4</span>),</span> <span class="line" id="L141"> roundParam(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>),</span> <span class="line" id="L142"> roundParam(<span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">6</span>),</span> <span class="line" id="L143"> roundParam(<span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">7</span>),</span> <span class="line" id="L144"> roundParam(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">8</span>),</span> <span class="line" id="L145"> roundParam(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">9</span>),</span> <span class="line" id="L146"> roundParam(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">10</span>),</span> <span class="line" id="L147"> roundParam(<span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">11</span>),</span> <span class="line" id="L148"> roundParam(<span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">12</span>),</span> <span class="line" id="L149"> roundParam(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">13</span>),</span> <span class="line" id="L150"> roundParam(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">14</span>),</span> <span class="line" id="L151"> roundParam(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">15</span>),</span> <span class="line" id="L152"> };</span> <span class="line" id="L153"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (round0a) \|r\| {</span> <span class="line" id="L154"> s[r.i] = mem.readIntBig(<span class="tok-type">u32</span>, b[r.i <span class="tok-number">4</span> ..][<span class="tok-number">0</span>..<span class="tok-number">4</span>]);</span> <span class="line" id="L155"></span> <span class="line" id="L156"> v[r.e] = v[r.e] +% math.rotl(<span class="tok-type">u32</span>, v[r.a], <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-number">5</span>)) +% <span class="tok-number">0x5A827999</span> +% s[r.i & <span class="tok-number">0xf</span>] +% ((v[r.b] & v[r.c]) \| (~v[r.b] & v[r.d]));</span> <span class="line" id="L157"> v[r.b] = math.rotl(<span class="tok-type">u32</span>, v[r.b], <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-number">30</span>));</span> <span class="line" id="L158"> }</span> <span class="line" id="L159"></span> <span class="line" id="L160"> <span class="tok-kw">const</span> round0b = <span class="tok-kw">comptime</span> [_]RoundParam{</span> <span class="line" id="L161"> roundParam(<span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">16</span>),</span> <span class="line" id="L162"> roundParam(<span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">17</span>),</span> <span class="line" id="L163"> roundParam(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">18</span>),</span> <span class="line" id="L164"> roundParam(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">19</span>),</span> <span class="line" id="L165"> };</span> <span class="line" id="L166"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (round0b) \|r\| {</span> <span class="line" id="L167"> <span class="tok-kw">const</span> t = s[(r.i - <span class="tok-number">3</span>) & <span class="tok-number">0xf</span>] ^ s[(r.i - <span class="tok-number">8</span>) & <span class="tok-number">0xf</span>] ^ s[(r.i - <span class="tok-number">14</span>) & <span class="tok-number">0xf</span>] ^ s[(r.i - <span class="tok-number">16</span>) & <span class="tok-number">0xf</span>];</span> <span class="line" id="L168"> s[r.i & <span class="tok-number">0xf</span>] = math.rotl(<span class="tok-type">u32</span>, t, <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-number">1</span>));</span> <span class="line" id="L169"></span> <span class="line" id="L170"> v[r.e] = v[r.e] +% math.rotl(<span class="tok-type">u32</span>, v[r.a], <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-number">5</span>)) +% <span class="tok-number">0x5A827999</span> +% s[r.i & <span class="tok-number">0xf</span>] +% ((v[r.b] & v[r.c]) \| (~v[r.b] & v[r.d]));</span> <span class="line" id="L171"> v[r.b] = math.rotl(<span class="tok-type">u32</span>, v[r.b], <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-number">30</span>));</span> <span class="line" id="L172"> }</span> <span class="line" id="L173"></span> <span class="line" id="L174"> <span class="tok-kw">const</span> round1 = <span class="tok-kw">comptime</span> [_]RoundParam{</span> <span class="line" id="L175"> roundParam(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">20</span>),</span> <span class="line" id="L176"> roundParam(<span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">21</span>),</span> <span class="line" id="L177"> roundParam(<span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">22</span>),</span> <span class="line" id="L178"> roundParam(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">23</span>),</span> <span class="line" id="L179"> roundParam(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">24</span>),</span> <span class="line" id="L180"> roundParam(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">25</span>),</span> <span class="line" id="L181"> roundParam(<span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">26</span>),</span> <span class="line" id="L182"> roundParam(<span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">27</span>),</span> <span class="line" id="L183"> roundParam(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">28</span>),</span> <span class="line" id="L184"> roundParam(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">29</span>),</span> <span class="line" id="L185"> roundParam(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">30</span>),</span> <span class="line" id="L186"> roundParam(<span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">31</span>),</span> <span class="line" id="L187"> roundParam(<span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">32</span>),</span> <span class="line" id="L188"> roundParam(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">33</span>),</span> <span class="line" id="L189"> roundParam(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">34</span>),</span> <span class="line" id="L190"> roundParam(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">35</span>),</span> <span class="line" id="L191"> roundParam(<span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">36</span>),</span> <span class="line" id="L192"> roundParam(<span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">37</span>),</span> <span class="line" id="L193"> roundParam(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">38</span>),</span> <span class="line" id="L194"> roundParam(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">39</span>),</span> <span class="line" id="L195"> };</span> <span class="line" id="L196"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (round1) \|r\| {</span> <span class="line" id="L197"> <span class="tok-kw">const</span> t = s[(r.i - <span class="tok-number">3</span>) & <span class="tok-number">0xf</span>] ^ s[(r.i - <span class="tok-number">8</span>) & <span class="tok-number">0xf</span>] ^ s[(r.i - <span class="tok-number">14</span>) & <span class="tok-number">0xf</span>] ^ s[(r.i - <span class="tok-number">16</span>) & <span class="tok-number">0xf</span>];</span> <span class="line" id="L198"> s[r.i & <span class="tok-number">0xf</span>] = math.rotl(<span class="tok-type">u32</span>, t, <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-number">1</span>));</span> <span class="line" id="L199"></span> <span class="line" id="L200"> v[r.e] = v[r.e] +% math.rotl(<span class="tok-type">u32</span>, v[r.a], <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-number">5</span>)) +% <span class="tok-number">0x6ED9EBA1</span> +% s[r.i & <span class="tok-number">0xf</span>] +% (v[r.b] ^ v[r.c] ^ v[r.d]);</span> <span class="line" id="L201"> v[r.b] = math.rotl(<span class="tok-type">u32</span>, v[r.b], <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-number">30</span>));</span> <span class="line" id="L202"> }</span> <span class="line" id="L203"></span> <span class="line" id="L204"> <span class="tok-kw">const</span> round2 = <span class="tok-kw">comptime</span> [_]RoundParam{</span> <span class="line" id="L205"> roundParam(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">40</span>),</span> <span class="line" id="L206"> roundParam(<span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">41</span>),</span> <span class="line" id="L207"> roundParam(<span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">42</span>),</span> <span class="line" id="L208"> roundParam(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">43</span>),</span> <span class="line" id="L209"> roundParam(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">44</span>),</span> <span class="line" id="L210"> roundParam(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">45</span>),</span> <span class="line" id="L211"> roundParam(<span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">46</span>),</span> <span class="line" id="L212"> roundParam(<span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">47</span>),</span> <span class="line" id="L213"> roundParam(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">48</span>),</span> <span class="line" id="L214"> roundParam(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">49</span>),</span> <span class="line" id="L215"> roundParam(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">50</span>),</span> <span class="line" id="L216"> roundParam(<span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">51</span>),</span> <span class="line" id="L217"> roundParam(<span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">52</span>),</span> <span class="line" id="L218"> roundParam(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">53</span>),</span> <span class="line" id="L219"> roundParam(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">54</span>),</span> <span class="line" id="L220"> roundParam(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">55</span>),</span> <span class="line" id="L221"> roundParam(<span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">56</span>),</span> <span class="line" id="L222"> roundParam(<span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">57</span>),</span> <span class="line" id="L223"> roundParam(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">58</span>),</span> <span class="line" id="L224"> roundParam(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">59</span>),</span> <span class="line" id="L225"> };</span> <span class="line" id="L226"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (round2) \|r\| {</span> <span class="line" id="L227"> <span class="tok-kw">const</span> t = s[(r.i - <span class="tok-number">3</span>) & <span class="tok-number">0xf</span>] ^ s[(r.i - <span class="tok-number">8</span>) & <span class="tok-number">0xf</span>] ^ s[(r.i - <span class="tok-number">14</span>) & <span class="tok-number">0xf</span>] ^ s[(r.i - <span class="tok-number">16</span>) & <span class="tok-number">0xf</span>];</span> <span class="line" id="L228"> s[r.i & <span class="tok-number">0xf</span>] = math.rotl(<span class="tok-type">u32</span>, t, <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-number">1</span>));</span> <span class="line" id="L229"></span> <span class="line" id="L230"> v[r.e] = v[r.e] +% math.rotl(<span class="tok-type">u32</span>, v[r.a], <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-number">5</span>)) +% <span class="tok-number">0x8F1BBCDC</span> +% s[r.i & <span class="tok-number">0xf</span>] +% ((v[r.b] & v[r.c]) ^ (v[r.b] & v[r.d]) ^ (v[r.c] & v[r.d]));</span> <span class="line" id="L231"> v[r.b] = math.rotl(<span class="tok-type">u32</span>, v[r.b], <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-number">30</span>));</span> <span class="line" id="L232"> }</span> <span class="line" id="L233"></span> <span class="line" id="L234"> <span class="tok-kw">const</span> round3 = <span class="tok-kw">comptime</span> [_]RoundParam{</span> <span class="line" id="L235"> roundParam(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">60</span>),</span> <span class="line" id="L236"> roundParam(<span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">61</span>),</span> <span class="line" id="L237"> roundParam(<span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">62</span>),</span> <span class="line" id="L238"> roundParam(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">63</span>),</span> <span class="line" id="L239"> roundParam(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">64</span>),</span> <span class="line" id="L240"> roundParam(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">65</span>),</span> <span class="line" id="L241"> roundParam(<span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">66</span>),</span> <span class="line" id="L242"> roundParam(<span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">67</span>),</span> <span class="line" id="L243"> roundParam(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">68</span>),</span> <span class="line" id="L244"> roundParam(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">69</span>),</span> <span class="line" id="L245"> roundParam(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">70</span>),</span> <span class="line" id="L246"> roundParam(<span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">71</span>),</span> <span class="line" id="L247"> roundParam(<span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">72</span>),</span> <span class="line" id="L248"> roundParam(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">73</span>),</span> <span class="line" id="L249"> roundParam(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">74</span>),</span> <span class="line" id="L250"> roundParam(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">75</span>),</span> <span class="line" id="L251"> roundParam(<span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">76</span>),</span> <span class="line" id="L252"> roundParam(<span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">77</span>),</span> <span class="line" id="L253"> roundParam(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">78</span>),</span> <span class="line" id="L254"> roundParam(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">79</span>),</span> <span class="line" id="L255"> };</span> <span class="line" id="L256"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (round3) \|r\| {</span> <span class="line" id="L257"> <span class="tok-kw">const</span> t = s[(r.i - <span class="tok-number">3</span>) & <span class="tok-number">0xf</span>] ^ s[(r.i - <span class="tok-number">8</span>) & <span class="tok-number">0xf</span>] ^ s[(r.i - <span class="tok-number">14</span>) & <span class="tok-number">0xf</span>] ^ s[(r.i - <span class="tok-number">16</span>) & <span class="tok-number">0xf</span>];</span> <span class="line" id="L258"> s[r.i & <span class="tok-number">0xf</span>] = math.rotl(<span class="tok-type">u32</span>, t, <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-number">1</span>));</span> <span class="line" id="L259"></span> <span class="line" id="L260"> v[r.e] = v[r.e] +% math.rotl(<span class="tok-type">u32</span>, v[r.a], <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-number">5</span>)) +% <span class="tok-number">0xCA62C1D6</span> +% s[r.i & <span class="tok-number">0xf</span>] +% (v[r.b] ^ v[r.c] ^ v[r.d]);</span> <span class="line" id="L261"> v[r.b] = math.rotl(<span class="tok-type">u32</span>, v[r.b], <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-number">30</span>));</span> <span class="line" id="L262"> }</span> <span class="line" id="L263"></span> <span class="line" id="L264"> d.s[<span class="tok-number">0</span>] +%= v[<span class="tok-number">0</span>];</span> <span class="line" id="L265"> d.s[<span class="tok-number">1</span>] +%= v[<span class="tok-number">1</span>];</span> <span class="line" id="L266"> d.s[<span class="tok-number">2</span>] +%= v[<span class="tok-number">2</span>];</span> <span class="line" id="L267"> d.s[<span class="tok-number">3</span>] +%= v[<span class="tok-number">3</span>];</span> <span class="line" id="L268"> d.s[<span class="tok-number">4</span>] +%= v[<span class="tok-number">4</span>];</span> <span class="line" id="L269"> }</span> <span class="line" id="L270"></span> <span class="line" id="L271"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Error = <span class="tok-kw">error</span>{};</span> <span class="line" id="L272"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Writer = std.io.Writer(Self, Error, write);</span> <span class="line" id="L273"></span> <span class="line" id="L274"> <span class="tok-kw">fn</span> <span class="tok-fn">write</span>(self: Self, bytes: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) Error!<span class="tok-type">usize</span> {</span> <span class="line" id="L275"> self.update(bytes);</span> <span class="line" id="L276"> <span class="tok-kw">return</span> bytes.len;</span> <span class="line" id="L277"> }</span> <span class="line" id="L278"></span> <span class="line" id="L279"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">writer</span>(self: Self) Writer {</span> <span class="line" id="L280"> <span class="tok-kw">return</span> .{ .context = self };</span> <span class="line" id="L281"> }</span> <span class="line" id="L282">};</span> <span class="line" id="L283"></span> <span class="line" id="L284"><span class="tok-kw">const</span> htest = <span class="tok-builtin">@import</span>(<span class="tok-str">"test.zig"</span>);</span> <span class="line" id="L285"></span> <span class="line" id="L286"><span class="tok-kw">test</span> <span class="tok-str">"sha1 single"</span> {</span> <span class="line" id="L287"> <span class="tok-kw">try</span> htest.assertEqualHash(Sha1, <span class="tok-str">"da39a3ee5e6b4b0d3255bfef95601890afd80709"</span>, <span class="tok-str">""</span>);</span> <span class="line" id="L288"> <span class="tok-kw">try</span> htest.assertEqualHash(Sha1, <span class="tok-str">"a9993e364706816aba3e25717850c26c9cd0d89d"</span>, <span class="tok-str">"abc"</span>);</span> <span class="line" id="L289"> <span class="tok-kw">try</span> htest.assertEqualHash(Sha1, <span class="tok-str">"a49b2446a02c645bf419f995b67091253a04a259"</span>, <span class="tok-str">"abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmnhijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu"</span>);</span> <span class="line" id="L290">}</span> <span class="line" id="L291"></span> <span class="line" id="L292"><span class="tok-kw">test</span> <span class="tok-str">"sha1 streaming"</span> {</span> <span class="line" id="L293"> <span class="tok-kw">var</span> h = Sha1.init(.{});</span> <span class="line" id="L294"> <span class="tok-kw">var</span> out: [<span class="tok-number">20</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L295"></span> <span class="line" id="L296"> h.final(&out);</span> <span class="line" id="L297"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"da39a3ee5e6b4b0d3255bfef95601890afd80709"</span>, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L298"></span> <span class="line" id="L299"> h = Sha1.init(.{});</span> <span class="line" id="L300"> h.update(<span class="tok-str">"abc"</span>);</span> <span class="line" id="L301"> h.final(&out);</span> <span class="line" id="L302"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"a9993e364706816aba3e25717850c26c9cd0d89d"</span>, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L303"></span> <span class="line" id="L304"> h = Sha1.init(.{});</span> <span class="line" id="L305"> h.update(<span class="tok-str">"a"</span>);</span> <span class="line" id="L306"> h.update(<span class="tok-str">"b"</span>);</span> <span class="line" id="L307"> h.update(<span class="tok-str">"c"</span>);</span> <span class="line" id="L308"> h.final(&out);</span> <span class="line" id="L309"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"a9993e364706816aba3e25717850c26c9cd0d89d"</span>, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L310">}</span> <span class="line" id="L311"></span> <span class="line" id="L312"><span class="tok-kw">test</span> <span class="tok-str">"sha1 aligned final"</span> {</span> <span class="line" id="L313"> <span class="tok-kw">var</span> block = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} * Sha1.block_length;</span> <span class="line" id="L314"> <span class="tok-kw">var</span> out: [Sha1.digest_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L315"></span> <span class="line" id="L316"> <span class="tok-kw">var</span> h = Sha1.init(.{});</span> <span class="line" id="L317"> h.update(&block);</span> <span class="line" id="L318"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L319">}</span> <span class="line" id="L320"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/crypto/modes.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/modes.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-comment">// Based on Go stdlib implementation</span> </span> <span class="line" id="L2"></span> <span class="line" id="L3"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"../std.zig"</span>);</span> <span class="line" id="L4"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L5"><span class="tok-kw">const</span> debug = std.debug;</span> <span class="line" id="L6"></span> <span class="line" id="L7"><span class="tok-comment">/// Counter mode.</span></span> <span class="line" id="L8"><span class="tok-comment">///</span></span> <span class="line" id="L9"><span class="tok-comment">/// This mode creates a key stream by encrypting an incrementing counter using a block cipher, and adding it to the source material.</span></span> <span class="line" id="L10"><span class="tok-comment">///</span></span> <span class="line" id="L11"><span class="tok-comment">/// Important: the counter mode doesn't provide authenticated encryption: the ciphertext can be trivially modified without this being detected.</span></span> <span class="line" id="L12"><span class="tok-comment">/// As a result, applications should generally never use it directly, but only in a construction that includes a MAC.</span></span> <span class="line" id="L13"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">ctr</span>(<span class="tok-kw">comptime</span> BlockCipher: <span class="tok-kw">anytype</span>, block_cipher: BlockCipher, dst: []<span class="tok-type">u8</span>, src: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, iv: [BlockCipher.block_length]<span class="tok-type">u8</span>, endian: std.builtin.Endian) <span class="tok-type">void</span> {</span> <span class="line" id="L14"> debug.assert(dst.len >= src.len);</span> <span class="line" id="L15"> <span class="tok-kw">const</span> block_length = BlockCipher.block_length;</span> <span class="line" id="L16"> <span class="tok-kw">var</span> counter: [BlockCipher.block_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L17"> <span class="tok-kw">var</span> counterInt = mem.readInt(<span class="tok-type">u128</span>, &iv, endian);</span> <span class="line" id="L18"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L19"></span> <span class="line" id="L20"> <span class="tok-kw">const</span> parallel_count = BlockCipher.block.parallel.optimal_parallel_blocks;</span> <span class="line" id="L21"> <span class="tok-kw">const</span> wide_block_length = parallel_count * <span class="tok-number">16</span>;</span> <span class="line" id="L22"> <span class="tok-kw">if</span> (src.len >= wide_block_length) {</span> <span class="line" id="L23"> <span class="tok-kw">var</span> counters: [parallel_count * <span class="tok-number">16</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L24"> <span class="tok-kw">while</span> (i + wide_block_length <= src.len) : (i += wide_block_length) {</span> <span class="line" id="L25"> <span class="tok-kw">comptime</span> <span class="tok-kw">var</span> j = <span class="tok-number">0</span>;</span> <span class="line" id="L26"> <span class="tok-kw">inline</span> <span class="tok-kw">while</span> (j < parallel_count) : (j += <span class="tok-number">1</span>) {</span> <span class="line" id="L27"> mem.writeInt(<span class="tok-type">u128</span>, counters[j * <span class="tok-number">16</span> .. j * <span class="tok-number">16</span> + <span class="tok-number">16</span>], counterInt, endian);</span> <span class="line" id="L28"> counterInt +%= <span class="tok-number">1</span>;</span> <span class="line" id="L29"> }</span> <span class="line" id="L30"> block_cipher.xorWide(parallel_count, dst[i .. i + wide_block_length][<span class="tok-number">0</span>..wide_block_length], src[i .. i + wide_block_length][<span class="tok-number">0</span>..wide_block_length], counters);</span> <span class="line" id="L31"> }</span> <span class="line" id="L32"> }</span> <span class="line" id="L33"> <span class="tok-kw">while</span> (i + block_length <= src.len) : (i += block_length) {</span> <span class="line" id="L34"> mem.writeInt(<span class="tok-type">u128</span>, &counter, counterInt, endian);</span> <span class="line" id="L35"> counterInt +%= <span class="tok-number">1</span>;</span> <span class="line" id="L36"> block_cipher.xor(dst[i .. i + block_length][<span class="tok-number">0</span>..block_length], src[i .. i + block_length][<span class="tok-number">0</span>..block_length], counter);</span> <span class="line" id="L37"> }</span> <span class="line" id="L38"> <span class="tok-kw">if</span> (i < src.len) {</span> <span class="line" id="L39"> mem.writeInt(<span class="tok-type">u128</span>, &counter, counterInt, endian);</span> <span class="line" id="L40"> <span class="tok-kw">var</span> pad = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} ** block_length;</span> <span class="line" id="L41"> <span class="tok-kw">const</span> src_slice = src[i..];</span> <span class="line" id="L42"> <span class="tok-builtin">@memcpy</span>(pad[<span class="tok-number">0</span>..src_slice.len], src_slice);</span> <span class="line" id="L43"> block_cipher.xor(&pad, &pad, counter);</span> <span class="line" id="L44"> <span class="tok-kw">const</span> pad_slice = pad[<span class="tok-number">0</span> .. src.len - i];</span> <span class="line" id="L45"> <span class="tok-builtin">@memcpy</span>(dst[i..][<span class="tok-number">0</span>..pad_slice.len], pad_slice);</span> <span class="line" id="L46"> }</span> <span class="line" id="L47">}</span> <span class="line" id="L48"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/crypto/siphash.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/siphash.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-comment">//</span> </span> <span class="line" id="L2"><span class="tok-comment">// SipHash is a moderately fast pseudorandom function, returning a 64-bit or 128-bit tag for an arbitrary long input.</span> </span> <span class="line" id="L3"><span class="tok-comment">//</span> </span> <span class="line" id="L4"><span class="tok-comment">// Typical use cases include:</span> </span> <span class="line" id="L5"><span class="tok-comment">// - protection against DoS attacks for hash tables and bloom filters</span> </span> <span class="line" id="L6"><span class="tok-comment">// - authentication of short-lived messages in online protocols</span> </span> <span class="line" id="L7"><span class="tok-comment">//</span> </span> <span class="line" id="L8"><span class="tok-comment">// https://www.aumasson.jp/siphash/siphash.pdf</span> </span> <span class="line" id="L9"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"../std.zig"</span>);</span> <span class="line" id="L10"><span class="tok-kw">const</span> assert = std.debug.assert;</span> <span class="line" id="L11"><span class="tok-kw">const</span> testing = std.testing;</span> <span class="line" id="L12"><span class="tok-kw">const</span> math = std.math;</span> <span class="line" id="L13"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L14"></span> <span class="line" id="L15"><span class="tok-comment">/// SipHash function with 64-bit output.</span></span> <span class="line" id="L16"><span class="tok-comment">///</span></span> <span class="line" id="L17"><span class="tok-comment">/// Recommended parameters are:</span></span> <span class="line" id="L18"><span class="tok-comment">/// - (c_rounds=4, d_rounds=8) for conservative security; regular hash functions such as BLAKE2 or BLAKE3 are usually a better alternative.</span></span> <span class="line" id="L19"><span class="tok-comment">/// - (c_rounds=2, d_rounds=4) standard parameters.</span></span> <span class="line" id="L20"><span class="tok-comment">/// - (c_rounds=1, d_rounds=3) reduced-round function. Faster, no known implications on its practical security level.</span></span> <span class="line" id="L21"><span class="tok-comment">/// - (c_rounds=1, d_rounds=2) fastest option, but the output may be distinguishable from random data with related keys or non-uniform input - not suitable as a PRF.</span></span> <span class="line" id="L22"><span class="tok-comment">///</span></span> <span class="line" id="L23"><span class="tok-comment">/// SipHash is not a traditional hash function. If the input includes untrusted content, a secret key is absolutely necessary.</span></span> <span class="line" id="L24"><span class="tok-comment">/// And due to its small output size, collisions in SipHash64 can be found with an exhaustive search.</span></span> <span class="line" id="L25"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">SipHash64</span>(<span class="tok-kw">comptime</span> c_rounds: <span class="tok-type">usize</span>, <span class="tok-kw">comptime</span> d_rounds: <span class="tok-type">usize</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L26"> <span class="tok-kw">return</span> SipHash(<span class="tok-type">u64</span>, c_rounds, d_rounds);</span> <span class="line" id="L27">}</span> <span class="line" id="L28"></span> <span class="line" id="L29"><span class="tok-comment">/// SipHash function with 128-bit output.</span></span> <span class="line" id="L30"><span class="tok-comment">///</span></span> <span class="line" id="L31"><span class="tok-comment">/// Recommended parameters are:</span></span> <span class="line" id="L32"><span class="tok-comment">/// - (c_rounds=4, d_rounds=8) for conservative security; regular hash functions such as BLAKE2 or BLAKE3 are usually a better alternative.</span></span> <span class="line" id="L33"><span class="tok-comment">/// - (c_rounds=2, d_rounds=4) standard parameters.</span></span> <span class="line" id="L34"><span class="tok-comment">/// - (c_rounds=1, d_rounds=4) reduced-round function. Recommended to hash very short, similar strings, when a 128-bit PRF output is still required.</span></span> <span class="line" id="L35"><span class="tok-comment">/// - (c_rounds=1, d_rounds=3) reduced-round function. Faster, no known implications on its practical security level.</span></span> <span class="line" id="L36"><span class="tok-comment">/// - (c_rounds=1, d_rounds=2) fastest option, but the output may be distinguishable from random data with related keys or non-uniform input - not suitable as a PRF.</span></span> <span class="line" id="L37"><span class="tok-comment">///</span></span> <span class="line" id="L38"><span class="tok-comment">/// SipHash is not a traditional hash function. If the input includes untrusted content, a secret key is absolutely necessary.</span></span> <span class="line" id="L39"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">SipHash128</span>(<span class="tok-kw">comptime</span> c_rounds: <span class="tok-type">usize</span>, <span class="tok-kw">comptime</span> d_rounds: <span class="tok-type">usize</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L40"> <span class="tok-kw">return</span> SipHash(<span class="tok-type">u128</span>, c_rounds, d_rounds);</span> <span class="line" id="L41">}</span> <span class="line" id="L42"></span> <span class="line" id="L43"><span class="tok-kw">fn</span> <span class="tok-fn">SipHashStateless</span>(<span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>, <span class="tok-kw">comptime</span> c_rounds: <span class="tok-type">usize</span>, <span class="tok-kw">comptime</span> d_rounds: <span class="tok-type">usize</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L44"> assert(T == <span class="tok-type">u64</span> <span class="tok-kw">or</span> T == <span class="tok-type">u128</span>);</span> <span class="line" id="L45"> assert(c_rounds > <span class="tok-number">0</span> <span class="tok-kw">and</span> d_rounds > <span class="tok-number">0</span>);</span> <span class="line" id="L46"></span> <span class="line" id="L47"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L48"> <span class="tok-kw">const</span> Self = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L49"> <span class="tok-kw">const</span> block_length = <span class="tok-number">64</span>;</span> <span class="line" id="L50"> <span class="tok-kw">const</span> key_length = <span class="tok-number">16</span>;</span> <span class="line" id="L51"></span> <span class="line" id="L52"> v0: <span class="tok-type">u64</span>,</span> <span class="line" id="L53"> v1: <span class="tok-type">u64</span>,</span> <span class="line" id="L54"> v2: <span class="tok-type">u64</span>,</span> <span class="line" id="L55"> v3: <span class="tok-type">u64</span>,</span> <span class="line" id="L56"> msg_len: <span class="tok-type">u8</span>,</span> <span class="line" id="L57"></span> <span class="line" id="L58"> <span class="tok-kw">fn</span> <span class="tok-fn">init</span>(key: <span class="tok-kw">const</span> [key_length]<span class="tok-type">u8</span>) Self {</span> <span class="line" id="L59"> <span class="tok-kw">const</span> k0 = mem.readIntLittle(<span class="tok-type">u64</span>, key[<span class="tok-number">0</span>..<span class="tok-number">8</span>]);</span> <span class="line" id="L60"> <span class="tok-kw">const</span> k1 = mem.readIntLittle(<span class="tok-type">u64</span>, key[<span class="tok-number">8</span>..<span class="tok-number">16</span>]);</span> <span class="line" id="L61"></span> <span class="line" id="L62"> <span class="tok-kw">var</span> d = Self{</span> <span class="line" id="L63"> .v0 = k0 ^ <span class="tok-number">0x736f6d6570736575</span>,</span> <span class="line" id="L64"> .v1 = k1 ^ <span class="tok-number">0x646f72616e646f6d</span>,</span> <span class="line" id="L65"> .v2 = k0 ^ <span class="tok-number">0x6c7967656e657261</span>,</span> <span class="line" id="L66"> .v3 = k1 ^ <span class="tok-number">0x7465646279746573</span>,</span> <span class="line" id="L67"> .msg_len = <span class="tok-number">0</span>,</span> <span class="line" id="L68"> };</span> <span class="line" id="L69"></span> <span class="line" id="L70"> <span class="tok-kw">if</span> (T == <span class="tok-type">u128</span>) {</span> <span class="line" id="L71"> d.v1 ^= <span class="tok-number">0xee</span>;</span> <span class="line" id="L72"> }</span> <span class="line" id="L73"></span> <span class="line" id="L74"> <span class="tok-kw">return</span> d;</span> <span class="line" id="L75"> }</span> <span class="line" id="L76"></span> <span class="line" id="L77"> <span class="tok-kw">fn</span> <span class="tok-fn">update</span>(self: Self, b: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L78"> std.debug.assert(b.len % <span class="tok-number">8</span> == <span class="tok-number">0</span>);</span> <span class="line" id="L79"></span> <span class="line" id="L80"> <span class="tok-kw">var</span> off: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L81"> <span class="tok-kw">while</span> (off < b.len) : (off += <span class="tok-number">8</span>) {</span> <span class="line" id="L82"> <span class="tok-kw">const</span> blob = b[off..][<span class="tok-number">0</span>..<span class="tok-number">8</span>].;</span> <span class="line" id="L83"> <span class="tok-builtin">@call</span>(.always_inline, round, .{ self, blob });</span> <span class="line" id="L84"> }</span> <span class="line" id="L85"></span> <span class="line" id="L86"> self.msg_len +%= <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>(b.len));</span> <span class="line" id="L87"> }</span> <span class="line" id="L88"></span> <span class="line" id="L89"> <span class="tok-kw">fn</span> <span class="tok-fn">final</span>(self: Self, b: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) T {</span> <span class="line" id="L90"> std.debug.assert(b.len < <span class="tok-number">8</span>);</span> <span class="line" id="L91"></span> <span class="line" id="L92"> self.msg_len +%= <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>(b.len));</span> <span class="line" id="L93"></span> <span class="line" id="L94"> <span class="tok-kw">var</span> buf = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} ** <span class="tok-number">8</span>;</span> <span class="line" id="L95"> <span class="tok-builtin">@memcpy</span>(buf[<span class="tok-number">0</span>..b.len], b);</span> <span class="line" id="L96"> buf[<span class="tok-number">7</span>] = self.msg_len;</span> <span class="line" id="L97"> self.round(buf);</span> <span class="line" id="L98"></span> <span class="line" id="L99"> <span class="tok-kw">if</span> (T == <span class="tok-type">u128</span>) {</span> <span class="line" id="L100"> self.v2 ^= <span class="tok-number">0xee</span>;</span> <span class="line" id="L101"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L102"> self.v2 ^= <span class="tok-number">0xff</span>;</span> <span class="line" id="L103"> }</span> <span class="line" id="L104"></span> <span class="line" id="L105"> <span class="tok-kw">comptime</span> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L106"> <span class="tok-kw">inline</span> <span class="tok-kw">while</span> (i < d_rounds) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L107"> <span class="tok-builtin">@call</span>(.always_inline, sipRound, .{self});</span> <span class="line" id="L108"> }</span> <span class="line" id="L109"></span> <span class="line" id="L110"> <span class="tok-kw">const</span> b1 = self.v0 ^ self.v1 ^ self.v2 ^ self.v3;</span> <span class="line" id="L111"> <span class="tok-kw">if</span> (T == <span class="tok-type">u64</span>) {</span> <span class="line" id="L112"> <span class="tok-kw">return</span> b1;</span> <span class="line" id="L113"> }</span> <span class="line" id="L114"></span> <span class="line" id="L115"> self.v1 ^= <span class="tok-number">0xdd</span>;</span> <span class="line" id="L116"></span> <span class="line" id="L117"> <span class="tok-kw">comptime</span> <span class="tok-kw">var</span> j: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L118"> <span class="tok-kw">inline</span> <span class="tok-kw">while</span> (j < d_rounds) : (j += <span class="tok-number">1</span>) {</span> <span class="line" id="L119"> <span class="tok-builtin">@call</span>(.always_inline, sipRound, .{self});</span> <span class="line" id="L120"> }</span> <span class="line" id="L121"></span> <span class="line" id="L122"> <span class="tok-kw">const</span> b2 = self.v0 ^ self.v1 ^ self.v2 ^ self.v3;</span> <span class="line" id="L123"> <span class="tok-kw">return</span> (<span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, b2) << <span class="tok-number">64</span>) \| b1;</span> <span class="line" id="L124"> }</span> <span class="line" id="L125"></span> <span class="line" id="L126"> <span class="tok-kw">fn</span> <span class="tok-fn">round</span>(self: Self, b: [<span class="tok-number">8</span>]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L127"> <span class="tok-kw">const</span> m = mem.readIntLittle(<span class="tok-type">u64</span>, &b);</span> <span class="line" id="L128"> self.v3 ^= m;</span> <span class="line" id="L129"></span> <span class="line" id="L130"> <span class="tok-kw">comptime</span> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L131"> <span class="tok-kw">inline</span> <span class="tok-kw">while</span> (i < c_rounds) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L132"> <span class="tok-builtin">@call</span>(.always_inline, sipRound, .{self});</span> <span class="line" id="L133"> }</span> <span class="line" id="L134"></span> <span class="line" id="L135"> self.v0 ^= m;</span> <span class="line" id="L136"> }</span> <span class="line" id="L137"></span> <span class="line" id="L138"> <span class="tok-kw">fn</span> <span class="tok-fn">sipRound</span>(d: Self) <span class="tok-type">void</span> {</span> <span class="line" id="L139"> d.v0 +%= d.v1;</span> <span class="line" id="L140"> d.v1 = math.rotl(<span class="tok-type">u64</span>, d.v1, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">13</span>));</span> <span class="line" id="L141"> d.v1 ^= d.v0;</span> <span class="line" id="L142"> d.v0 = math.rotl(<span class="tok-type">u64</span>, d.v0, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">32</span>));</span> <span class="line" id="L143"> d.v2 +%= d.v3;</span> <span class="line" id="L144"> d.v3 = math.rotl(<span class="tok-type">u64</span>, d.v3, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">16</span>));</span> <span class="line" id="L145"> d.v3 ^= d.v2;</span> <span class="line" id="L146"> d.v0 +%= d.v3;</span> <span class="line" id="L147"> d.v3 = math.rotl(<span class="tok-type">u64</span>, d.v3, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">21</span>));</span> <span class="line" id="L148"> d.v3 ^= d.v0;</span> <span class="line" id="L149"> d.v2 +%= d.v1;</span> <span class="line" id="L150"> d.v1 = math.rotl(<span class="tok-type">u64</span>, d.v1, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">17</span>));</span> <span class="line" id="L151"> d.v1 ^= d.v2;</span> <span class="line" id="L152"> d.v2 = math.rotl(<span class="tok-type">u64</span>, d.v2, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">32</span>));</span> <span class="line" id="L153"> }</span> <span class="line" id="L154"></span> <span class="line" id="L155"> <span class="tok-kw">fn</span> <span class="tok-fn">hash</span>(msg: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, key: <span class="tok-kw">const</span> [key_length]<span class="tok-type">u8</span>) T {</span> <span class="line" id="L156"> <span class="tok-kw">const</span> aligned_len = msg.len - (msg.len % <span class="tok-number">8</span>);</span> <span class="line" id="L157"> <span class="tok-kw">var</span> c = Self.init(key);</span> <span class="line" id="L158"> <span class="tok-builtin">@call</span>(.always_inline, update, .{ &c, msg[<span class="tok-number">0</span>..aligned_len] });</span> <span class="line" id="L159"> <span class="tok-kw">return</span> <span class="tok-builtin">@call</span>(.always_inline, final, .{ &c, msg[aligned_len..] });</span> <span class="line" id="L160"> }</span> <span class="line" id="L161"> };</span> <span class="line" id="L162">}</span> <span class="line" id="L163"></span> <span class="line" id="L164"><span class="tok-kw">fn</span> <span class="tok-fn">SipHash</span>(<span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>, <span class="tok-kw">comptime</span> c_rounds: <span class="tok-type">usize</span>, <span class="tok-kw">comptime</span> d_rounds: <span class="tok-type">usize</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L165"> assert(T == <span class="tok-type">u64</span> <span class="tok-kw">or</span> T == <span class="tok-type">u128</span>);</span> <span class="line" id="L166"> assert(c_rounds > <span class="tok-number">0</span> <span class="tok-kw">and</span> d_rounds > <span class="tok-number">0</span>);</span> <span class="line" id="L167"></span> <span class="line" id="L168"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L169"> <span class="tok-kw">const</span> State = SipHashStateless(T, c_rounds, d_rounds);</span> <span class="line" id="L170"> <span class="tok-kw">const</span> Self = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L171"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> key_length = <span class="tok-number">16</span>;</span> <span class="line" id="L172"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> mac_length = <span class="tok-builtin">@sizeOf</span>(T);</span> <span class="line" id="L173"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> block_length = <span class="tok-number">8</span>;</span> <span class="line" id="L174"></span> <span class="line" id="L175"> state: State,</span> <span class="line" id="L176"> buf: [<span class="tok-number">8</span>]<span class="tok-type">u8</span>,</span> <span class="line" id="L177"> buf_len: <span class="tok-type">usize</span>,</span> <span class="line" id="L178"></span> <span class="line" id="L179"> <span class="tok-comment">/// Initialize a state for a SipHash function</span></span> <span class="line" id="L180"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">init</span>(key: <span class="tok-kw">const</span> [key_length]<span class="tok-type">u8</span>) Self {</span> <span class="line" id="L181"> <span class="tok-kw">return</span> Self{</span> <span class="line" id="L182"> .state = State.init(key),</span> <span class="line" id="L183"> .buf = <span class="tok-null">undefined</span>,</span> <span class="line" id="L184"> .buf_len = <span class="tok-number">0</span>,</span> <span class="line" id="L185"> };</span> <span class="line" id="L186"> }</span> <span class="line" id="L187"></span> <span class="line" id="L188"> <span class="tok-comment">/// Add data to the state</span></span> <span class="line" id="L189"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">update</span>(self: Self, b: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L190"> <span class="tok-kw">var</span> off: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L191"></span> <span class="line" id="L192"> <span class="tok-kw">if</span> (self.buf_len != <span class="tok-number">0</span> <span class="tok-kw">and</span> self.buf_len + b.len >= <span class="tok-number">8</span>) {</span> <span class="line" id="L193"> off += <span class="tok-number">8</span> - self.buf_len;</span> <span class="line" id="L194"> <span class="tok-builtin">@memcpy</span>(self.buf[self.buf_len..][<span class="tok-number">0</span>..off], b[<span class="tok-number">0</span>..off]);</span> <span class="line" id="L195"> self.state.update(self.buf[<span class="tok-number">0</span>..]);</span> <span class="line" id="L196"> self.buf_len = <span class="tok-number">0</span>;</span> <span class="line" id="L197"> }</span> <span class="line" id="L198"></span> <span class="line" id="L199"> <span class="tok-kw">const</span> remain_len = b.len - off;</span> <span class="line" id="L200"> <span class="tok-kw">const</span> aligned_len = remain_len - (remain_len % <span class="tok-number">8</span>);</span> <span class="line" id="L201"> self.state.update(b[off .. off + aligned_len]);</span> <span class="line" id="L202"></span> <span class="line" id="L203"> <span class="tok-kw">const</span> b_slice = b[off + aligned_len ..];</span> <span class="line" id="L204"> <span class="tok-builtin">@memcpy</span>(self.buf[self.buf_len..][<span class="tok-number">0</span>..b_slice.len], b_slice);</span> <span class="line" id="L205"> self.buf_len += <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>(b_slice.len));</span> <span class="line" id="L206"> }</span> <span class="line" id="L207"></span> <span class="line" id="L208"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">peek</span>(self: Self) [mac_length]<span class="tok-type">u8</span> {</span> <span class="line" id="L209"> <span class="tok-kw">var</span> copy = self;</span> <span class="line" id="L210"> <span class="tok-kw">return</span> copy.finalResult();</span> <span class="line" id="L211"> }</span> <span class="line" id="L212"></span> <span class="line" id="L213"> <span class="tok-comment">/// Return an authentication tag for the current state</span></span> <span class="line" id="L214"> <span class="tok-comment">/// Assumes `out` is less than or equal to `mac_length`.</span></span> <span class="line" id="L215"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">final</span>(self: Self, out: [mac_length]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L216"> mem.writeIntLittle(T, out, self.state.final(self.buf[<span class="tok-number">0</span>..self.buf_len]));</span> <span class="line" id="L217"> }</span> <span class="line" id="L218"></span> <span class="line" id="L219"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">finalResult</span>(self: Self) [mac_length]<span class="tok-type">u8</span> {</span> <span class="line" id="L220"> <span class="tok-kw">var</span> result: [mac_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L221"> self.final(&result);</span> <span class="line" id="L222"> <span class="tok-kw">return</span> result;</span> <span class="line" id="L223"> }</span> <span class="line" id="L224"></span> <span class="line" id="L225"> <span class="tok-comment">/// Return an authentication tag for a message and a key</span></span> <span class="line" id="L226"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">create</span>(out: [mac_length]<span class="tok-type">u8</span>, msg: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, key: <span class="tok-kw">const</span> [key_length]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L227"> <span class="tok-kw">var</span> ctx = Self.init(key);</span> <span class="line" id="L228"> ctx.update(msg);</span> <span class="line" id="L229"> ctx.final(out);</span> <span class="line" id="L230"> }</span> <span class="line" id="L231"></span> <span class="line" id="L232"> <span class="tok-comment">/// Return an authentication tag for the current state, as an integer</span></span> <span class="line" id="L233"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">finalInt</span>(self: Self) T {</span> <span class="line" id="L234"> <span class="tok-kw">return</span> self.state.final(self.buf[<span class="tok-number">0</span>..self.buf_len]);</span> <span class="line" id="L235"> }</span> <span class="line" id="L236"></span> <span class="line" id="L237"> <span class="tok-comment">/// Return an authentication tag for a message and a key, as an integer</span></span> <span class="line" id="L238"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toInt</span>(msg: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, key: <span class="tok-kw">const</span> [key_length]<span class="tok-type">u8</span>) T {</span> <span class="line" id="L239"> <span class="tok-kw">return</span> State.hash(msg, key);</span> <span class="line" id="L240"> }</span> <span class="line" id="L241"></span> <span class="line" id="L242"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Error = <span class="tok-kw">error</span>{};</span> <span class="line" id="L243"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Writer = std.io.Writer(Self, Error, write);</span> <span class="line" id="L244"></span> <span class="line" id="L245"> <span class="tok-kw">fn</span> <span class="tok-fn">write</span>(self: Self, bytes: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) Error!<span class="tok-type">usize</span> {</span> <span class="line" id="L246"> self.update(bytes);</span> <span class="line" id="L247"> <span class="tok-kw">return</span> bytes.len;</span> <span class="line" id="L248"> }</span> <span class="line" id="L249"></span> <span class="line" id="L250"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">writer</span>(self: Self) Writer {</span> <span class="line" id="L251"> <span class="tok-kw">return</span> .{ .context = self };</span> <span class="line" id="L252"> }</span> <span class="line" id="L253"> };</span> <span class="line" id="L254">}</span> <span class="line" id="L255"></span> <span class="line" id="L256"><span class="tok-comment">// Test vectors from reference implementation.</span> </span> <span class="line" id="L257"><span class="tok-comment">// https://github.com/veorq/SipHash/blob/master/vectors.h</span> </span> <span class="line" id="L258"><span class="tok-kw">const</span> test_key = <span class="tok-str">"\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f"</span>;</span> <span class="line" id="L259"></span> <span class="line" id="L260"><span class="tok-kw">test</span> <span class="tok-str">"siphash64-2-4 sanity"</span> {</span> <span class="line" id="L261"> <span class="tok-kw">const</span> vectors = [_][<span class="tok-number">8</span>]<span class="tok-type">u8</span>{</span> <span class="line" id="L262"> <span class="tok-str">"\x31\x0e\x0e\xdd\x47\xdb\x6f\x72"</span>., <span class="tok-comment">// ""</span> </span> <span class="line" id="L263"> <span class="tok-str">"\xfd\x67\xdc\x93\xc5\x39\xf8\x74"</span>., <span class="tok-comment">// "\x00"</span> </span> <span class="line" id="L264"> <span class="tok-str">"\x5a\x4f\xa9\xd9\x09\x80\x6c\x0d"</span>., <span class="tok-comment">// "\x00\x01" ... etc</span> </span> <span class="line" id="L265"> <span class="tok-str">"\x2d\x7e\xfb\xd7\x96\x66\x67\x85"</span>.,</span> <span class="line" id="L266"> <span class="tok-str">"\xb7\x87\x71\x27\xe0\x94\x27\xcf"</span>.,</span> <span class="line" id="L267"> <span class="tok-str">"\x8d\xa6\x99\xcd\x64\x55\x76\x18"</span>.,</span> <span class="line" id="L268"> <span class="tok-str">"\xce\xe3\xfe\x58\x6e\x46\xc9\xcb"</span>.,</span> <span class="line" id="L269"> <span class="tok-str">"\x37\xd1\x01\x8b\xf5\x00\x02\xab"</span>.,</span> <span class="line" id="L270"> <span class="tok-str">"\x62\x24\x93\x9a\x79\xf5\xf5\x93"</span>.,</span> <span class="line" id="L271"> <span class="tok-str">"\xb0\xe4\xa9\x0b\xdf\x82\x00\x9e"</span>.,</span> <span class="line" id="L272"> <span class="tok-str">"\xf3\xb9\xdd\x94\xc5\xbb\x5d\x7a"</span>.,</span> <span class="line" id="L273"> <span class="tok-str">"\xa7\xad\x6b\x22\x46\x2f\xb3\xf4"</span>.,</span> <span class="line" id="L274"> <span class="tok-str">"\xfb\xe5\x0e\x86\xbc\x8f\x1e\x75"</span>.,</span> <span class="line" id="L275"> <span class="tok-str">"\x90\x3d\x84\xc0\x27\x56\xea\x14"</span>.,</span> <span class="line" id="L276"> <span class="tok-str">"\xee\xf2\x7a\x8e\x90\xca\x23\xf7"</span>.,</span> <span class="line" id="L277"> <span class="tok-str">"\xe5\x45\xbe\x49\x61\xca\x29\xa1"</span>.,</span> <span class="line" id="L278"> <span class="tok-str">"\xdb\x9b\xc2\x57\x7f\xcc\x2a\x3f"</span>.,</span> <span class="line" id="L279"> <span class="tok-str">"\x94\x47\xbe\x2c\xf5\xe9\x9a\x69"</span>.,</span> <span class="line" id="L280"> <span class="tok-str">"\x9c\xd3\x8d\x96\xf0\xb3\xc1\x4b"</span>.,</span> <span class="line" id="L281"> <span class="tok-str">"\xbd\x61\x79\xa7\x1d\xc9\x6d\xbb"</span>.,</span> <span class="line" id="L282"> <span class="tok-str">"\x98\xee\xa2\x1a\xf2\x5c\xd6\xbe"</span>.,</span> <span class="line" id="L283"> <span class="tok-str">"\xc7\x67\x3b\x2e\xb0\xcb\xf2\xd0"</span>.,</span> <span class="line" id="L284"> <span class="tok-str">"\x88\x3e\xa3\xe3\x95\x67\x53\x93"</span>.,</span> <span class="line" id="L285"> <span class="tok-str">"\xc8\xce\x5c\xcd\x8c\x03\x0c\xa8"</span>.,</span> <span class="line" id="L286"> <span class="tok-str">"\x94\xaf\x49\xf6\xc6\x50\xad\xb8"</span>.,</span> <span class="line" id="L287"> <span class="tok-str">"\xea\xb8\x85\x8a\xde\x92\xe1\xbc"</span>.,</span> <span class="line" id="L288"> <span class="tok-str">"\xf3\x15\xbb\x5b\xb8\x35\xd8\x17"</span>.,</span> <span class="line" id="L289"> <span class="tok-str">"\xad\xcf\x6b\x07\x63\x61\x2e\x2f"</span>.,</span> <span class="line" id="L290"> <span class="tok-str">"\xa5\xc9\x1d\xa7\xac\xaa\x4d\xde"</span>.,</span> <span class="line" id="L291"> <span class="tok-str">"\x71\x65\x95\x87\x66\x50\xa2\xa6"</span>.,</span> <span class="line" id="L292"> <span class="tok-str">"\x28\xef\x49\x5c\x53\xa3\x87\xad"</span>.,</span> <span class="line" id="L293"> <span class="tok-str">"\x42\xc3\x41\xd8\xfa\x92\xd8\x32"</span>.,</span> <span class="line" id="L294"> <span class="tok-str">"\xce\x7c\xf2\x72\x2f\x51\x27\x71"</span>.,</span> <span class="line" id="L295"> <span class="tok-str">"\xe3\x78\x59\xf9\x46\x23\xf3\xa7"</span>.,</span> <span class="line" id="L296"> <span class="tok-str">"\x38\x12\x05\xbb\x1a\xb0\xe0\x12"</span>.,</span> <span class="line" id="L297"> <span class="tok-str">"\xae\x97\xa1\x0f\xd4\x34\xe0\x15"</span>.,</span> <span class="line" id="L298"> <span class="tok-str">"\xb4\xa3\x15\x08\xbe\xff\x4d\x31"</span>.,</span> <span class="line" id="L299"> <span class="tok-str">"\x81\x39\x62\x29\xf0\x90\x79\x02"</span>.,</span> <span class="line" id="L300"> <span class="tok-str">"\x4d\x0c\xf4\x9e\xe5\xd4\xdc\xca"</span>.,</span> <span class="line" id="L301"> <span class="tok-str">"\x5c\x73\x33\x6a\x76\xd8\xbf\x9a"</span>.,</span> <span class="line" id="L302"> <span class="tok-str">"\xd0\xa7\x04\x53\x6b\xa9\x3e\x0e"</span>.,</span> <span class="line" id="L303"> <span class="tok-str">"\x92\x59\x58\xfc\xd6\x42\x0c\xad"</span>.,</span> <span class="line" id="L304"> <span class="tok-str">"\xa9\x15\xc2\x9b\xc8\x06\x73\x18"</span>.,</span> <span class="line" id="L305"> <span class="tok-str">"\x95\x2b\x79\xf3\xbc\x0a\xa6\xd4"</span>.,</span> <span class="line" id="L306"> <span class="tok-str">"\xf2\x1d\xf2\xe4\x1d\x45\x35\xf9"</span>.,</span> <span class="line" id="L307"> <span class="tok-str">"\x87\x57\x75\x19\x04\x8f\x53\xa9"</span>.,</span> <span class="line" id="L308"> <span class="tok-str">"\x10\xa5\x6c\xf5\xdf\xcd\x9a\xdb"</span>.,</span> <span class="line" id="L309"> <span class="tok-str">"\xeb\x75\x09\x5c\xcd\x98\x6c\xd0"</span>.,</span> <span class="line" id="L310"> <span class="tok-str">"\x51\xa9\xcb\x9e\xcb\xa3\x12\xe6"</span>.,</span> <span class="line" id="L311"> <span class="tok-str">"\x96\xaf\xad\xfc\x2c\xe6\x66\xc7"</span>.,</span> <span class="line" id="L312"> <span class="tok-str">"\x72\xfe\x52\x97\x5a\x43\x64\xee"</span>.,</span> <span class="line" id="L313"> <span class="tok-str">"\x5a\x16\x45\xb2\x76\xd5\x92\xa1"</span>.,</span> <span class="line" id="L314"> <span class="tok-str">"\xb2\x74\xcb\x8e\xbf\x87\x87\x0a"</span>.,</span> <span class="line" id="L315"> <span class="tok-str">"\x6f\x9b\xb4\x20\x3d\xe7\xb3\x81"</span>.,</span> <span class="line" id="L316"> <span class="tok-str">"\xea\xec\xb2\xa3\x0b\x22\xa8\x7f"</span>.,</span> <span class="line" id="L317"> <span class="tok-str">"\x99\x24\xa4\x3c\xc1\x31\x57\x24"</span>.,</span> <span class="line" id="L318"> <span class="tok-str">"\xbd\x83\x8d\x3a\xaf\xbf\x8d\xb7"</span>.,</span> <span class="line" id="L319"> <span class="tok-str">"\x0b\x1a\x2a\x32\x65\xd5\x1a\xea"</span>.,</span> <span class="line" id="L320"> <span class="tok-str">"\x13\x50\x79\xa3\x23\x1c\xe6\x60"</span>.,</span> <span class="line" id="L321"> <span class="tok-str">"\x93\x2b\x28\x46\xe4\xd7\x06\x66"</span>.,</span> <span class="line" id="L322"> <span class="tok-str">"\xe1\x91\x5f\x5c\xb1\xec\xa4\x6c"</span>.,</span> <span class="line" id="L323"> <span class="tok-str">"\xf3\x25\x96\x5c\xa1\x6d\x62\x9f"</span>.,</span> <span class="line" id="L324"> <span class="tok-str">"\x57\x5f\xf2\x8e\x60\x38\x1b\xe5"</span>.,</span> <span class="line" id="L325"> <span class="tok-str">"\x72\x45\x06\xeb\x4c\x32\x8a\x95"</span>.,</span> <span class="line" id="L326"> };</span> <span class="line" id="L327"></span> <span class="line" id="L328"> <span class="tok-kw">const</span> siphash = SipHash64(<span class="tok-number">2</span>, <span class="tok-number">4</span>);</span> <span class="line" id="L329"></span> <span class="line" id="L330"> <span class="tok-kw">var</span> buffer: [<span class="tok-number">64</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L331"> <span class="tok-kw">for</span> (vectors, <span class="tok-number">0</span>..) \|vector, i\| {</span> <span class="line" id="L332"> buffer[i] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>(i));</span> <span class="line" id="L333"></span> <span class="line" id="L334"> <span class="tok-kw">var</span> out: [siphash.mac_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L335"> siphash.create(&out, buffer[<span class="tok-number">0</span>..i], test_key);</span> <span class="line" id="L336"> <span class="tok-kw">try</span> testing.expectEqual(out, vector);</span> <span class="line" id="L337"> }</span> <span class="line" id="L338">}</span> <span class="line" id="L339"></span> <span class="line" id="L340"><span class="tok-kw">test</span> <span class="tok-str">"siphash128-2-4 sanity"</span> {</span> <span class="line" id="L341"> <span class="tok-kw">const</span> vectors = [_][<span class="tok-number">16</span>]<span class="tok-type">u8</span>{</span> <span class="line" id="L342"> <span class="tok-str">"\xa3\x81\x7f\x04\xba\x25\xa8\xe6\x6d\xf6\x72\x14\xc7\x55\x02\x93"</span>.,</span> <span class="line" id="L343"> <span class="tok-str">"\xda\x87\xc1\xd8\x6b\x99\xaf\x44\x34\x76\x59\x11\x9b\x22\xfc\x45"</span>.,</span> <span class="line" id="L344"> <span class="tok-str">"\x81\x77\x22\x8d\xa4\xa4\x5d\xc7\xfc\xa3\x8b\xde\xf6\x0a\xff\xe4"</span>.,</span> <span class="line" id="L345"> <span class="tok-str">"\x9c\x70\xb6\x0c\x52\x67\xa9\x4e\x5f\x33\xb6\xb0\x29\x85\xed\x51"</span>.,</span> <span class="line" id="L346"> <span class="tok-str">"\xf8\x81\x64\xc1\x2d\x9c\x8f\xaf\x7d\x0f\x6e\x7c\x7b\xcd\x55\x79"</span>.,</span> <span class="line" id="L347"> <span class="tok-str">"\x13\x68\x87\x59\x80\x77\x6f\x88\x54\x52\x7a\x07\x69\x0e\x96\x27"</span>.,</span> <span class="line" id="L348"> <span class="tok-str">"\x14\xee\xca\x33\x8b\x20\x86\x13\x48\x5e\xa0\x30\x8f\xd7\xa1\x5e"</span>.,</span> <span class="line" id="L349"> <span class="tok-str">"\xa1\xf1\xeb\xbe\xd8\xdb\xc1\x53\xc0\xb8\x4a\xa6\x1f\xf0\x82\x39"</span>.,</span> <span class="line" id="L350"> <span class="tok-str">"\x3b\x62\xa9\xba\x62\x58\xf5\x61\x0f\x83\xe2\x64\xf3\x14\x97\xb4"</span>.,</span> <span class="line" id="L351"> <span class="tok-str">"\x26\x44\x99\x06\x0a\xd9\xba\xab\xc4\x7f\x8b\x02\xbb\x6d\x71\xed"</span>.,</span> <span class="line" id="L352"> <span class="tok-str">"\x00\x11\x0d\xc3\x78\x14\x69\x56\xc9\x54\x47\xd3\xf3\xd0\xfb\xba"</span>.,</span> <span class="line" id="L353"> <span class="tok-str">"\x01\x51\xc5\x68\x38\x6b\x66\x77\xa2\xb4\xdc\x6f\x81\xe5\xdc\x18"</span>.,</span> <span class="line" id="L354"> <span class="tok-str">"\xd6\x26\xb2\x66\x90\x5e\xf3\x58\x82\x63\x4d\xf6\x85\x32\xc1\x25"</span>.,</span> <span class="line" id="L355"> <span class="tok-str">"\x98\x69\xe2\x47\xe9\xc0\x8b\x10\xd0\x29\x93\x4f\xc4\xb9\x52\xf7"</span>.,</span> <span class="line" id="L356"> <span class="tok-str">"\x31\xfc\xef\xac\x66\xd7\xde\x9c\x7e\xc7\x48\x5f\xe4\x49\x49\x02"</span>.,</span> <span class="line" id="L357"> <span class="tok-str">"\x54\x93\xe9\x99\x33\xb0\xa8\x11\x7e\x08\xec\x0f\x97\xcf\xc3\xd9"</span>.,</span> <span class="line" id="L358"> <span class="tok-str">"\x6e\xe2\xa4\xca\x67\xb0\x54\xbb\xfd\x33\x15\xbf\x85\x23\x05\x77"</span>.,</span> <span class="line" id="L359"> <span class="tok-str">"\x47\x3d\x06\xe8\x73\x8d\xb8\x98\x54\xc0\x66\xc4\x7a\xe4\x77\x40"</span>.,</span> <span class="line" id="L360"> <span class="tok-str">"\xa4\x26\xe5\xe4\x23\xbf\x48\x85\x29\x4d\xa4\x81\xfe\xae\xf7\x23"</span>.,</span> <span class="line" id="L361"> <span class="tok-str">"\x78\x01\x77\x31\xcf\x65\xfa\xb0\x74\xd5\x20\x89\x52\x51\x2e\xb1"</span>.,</span> <span class="line" id="L362"> <span class="tok-str">"\x9e\x25\xfc\x83\x3f\x22\x90\x73\x3e\x93\x44\xa5\xe8\x38\x39\xeb"</span>.,</span> <span class="line" id="L363"> <span class="tok-str">"\x56\x8e\x49\x5a\xbe\x52\x5a\x21\x8a\x22\x14\xcd\x3e\x07\x1d\x12"</span>.,</span> <span class="line" id="L364"> <span class="tok-str">"\x4a\x29\xb5\x45\x52\xd1\x6b\x9a\x46\x9c\x10\x52\x8e\xff\x0a\xae"</span>.,</span> <span class="line" id="L365"> <span class="tok-str">"\xc9\xd1\x84\xdd\xd5\xa9\xf5\xe0\xcf\x8c\xe2\x9a\x9a\xbf\x69\x1c"</span>.,</span> <span class="line" id="L366"> <span class="tok-str">"\x2d\xb4\x79\xae\x78\xbd\x50\xd8\x88\x2a\x8a\x17\x8a\x61\x32\xad"</span>.,</span> <span class="line" id="L367"> <span class="tok-str">"\x8e\xce\x5f\x04\x2d\x5e\x44\x7b\x50\x51\xb9\xea\xcb\x8d\x8f\x6f"</span>.,</span> <span class="line" id="L368"> <span class="tok-str">"\x9c\x0b\x53\xb4\xb3\xc3\x07\xe8\x7e\xae\xe0\x86\x78\x14\x1f\x66"</span>.,</span> <span class="line" id="L369"> <span class="tok-str">"\xab\xf2\x48\xaf\x69\xa6\xea\xe4\xbf\xd3\xeb\x2f\x12\x9e\xeb\x94"</span>.,</span> <span class="line" id="L370"> <span class="tok-str">"\x06\x64\xda\x16\x68\x57\x4b\x88\xb9\x35\xf3\x02\x73\x58\xae\xf4"</span>.,</span> <span class="line" id="L371"> <span class="tok-str">"\xaa\x4b\x9d\xc4\xbf\x33\x7d\xe9\x0c\xd4\xfd\x3c\x46\x7c\x6a\xb7"</span>.,</span> <span class="line" id="L372"> <span class="tok-str">"\xea\x5c\x7f\x47\x1f\xaf\x6b\xde\x2b\x1a\xd7\xd4\x68\x6d\x22\x87"</span>.,</span> <span class="line" id="L373"> <span class="tok-str">"\x29\x39\xb0\x18\x32\x23\xfa\xfc\x17\x23\xde\x4f\x52\xc4\x3d\x35"</span>.,</span> <span class="line" id="L374"> <span class="tok-str">"\x7c\x39\x56\xca\x5e\xea\xfc\x3e\x36\x3e\x9d\x55\x65\x46\xeb\x68"</span>.,</span> <span class="line" id="L375"> <span class="tok-str">"\x77\xc6\x07\x71\x46\xf0\x1c\x32\xb6\xb6\x9d\x5f\x4e\xa9\xff\xcf"</span>.,</span> <span class="line" id="L376"> <span class="tok-str">"\x37\xa6\x98\x6c\xb8\x84\x7e\xdf\x09\x25\xf0\xf1\x30\x9b\x54\xde"</span>.,</span> <span class="line" id="L377"> <span class="tok-str">"\xa7\x05\xf0\xe6\x9d\xa9\xa8\xf9\x07\x24\x1a\x2e\x92\x3c\x8c\xc8"</span>.,</span> <span class="line" id="L378"> <span class="tok-str">"\x3d\xc4\x7d\x1f\x29\xc4\x48\x46\x1e\x9e\x76\xed\x90\x4f\x67\x11"</span>.,</span> <span class="line" id="L379"> <span class="tok-str">"\x0d\x62\xbf\x01\xe6\xfc\x0e\x1a\x0d\x3c\x47\x51\xc5\xd3\x69\x2b"</span>.,</span> <span class="line" id="L380"> <span class="tok-str">"\x8c\x03\x46\x8b\xca\x7c\x66\x9e\xe4\xfd\x5e\x08\x4b\xbe\xe7\xb5"</span>.,</span> <span class="line" id="L381"> <span class="tok-str">"\x52\x8a\x5b\xb9\x3b\xaf\x2c\x9c\x44\x73\xcc\xe5\xd0\xd2\x2b\xd9"</span>.,</span> <span class="line" id="L382"> <span class="tok-str">"\xdf\x6a\x30\x1e\x95\xc9\x5d\xad\x97\xae\x0c\xc8\xc6\x91\x3b\xd8"</span>.,</span> <span class="line" id="L383"> <span class="tok-str">"\x80\x11\x89\x90\x2c\x85\x7f\x39\xe7\x35\x91\x28\x5e\x70\xb6\xdb"</span>.,</span> <span class="line" id="L384"> <span class="tok-str">"\xe6\x17\x34\x6a\xc9\xc2\x31\xbb\x36\x50\xae\x34\xcc\xca\x0c\x5b"</span>.,</span> <span class="line" id="L385"> <span class="tok-str">"\x27\xd9\x34\x37\xef\xb7\x21\xaa\x40\x18\x21\xdc\xec\x5a\xdf\x89"</span>.,</span> <span class="line" id="L386"> <span class="tok-str">"\x89\x23\x7d\x9d\xed\x9c\x5e\x78\xd8\xb1\xc9\xb1\x66\xcc\x73\x42"</span>.,</span> <span class="line" id="L387"> <span class="tok-str">"\x4a\x6d\x80\x91\xbf\x5e\x7d\x65\x11\x89\xfa\x94\xa2\x50\xb1\x4c"</span>.,</span> <span class="line" id="L388"> <span class="tok-str">"\x0e\x33\xf9\x60\x55\xe7\xae\x89\x3f\xfc\x0e\x3d\xcf\x49\x29\x02"</span>.,</span> <span class="line" id="L389"> <span class="tok-str">"\xe6\x1c\x43\x2b\x72\x0b\x19\xd1\x8e\xc8\xd8\x4b\xdc\x63\x15\x1b"</span>.,</span> <span class="line" id="L390"> <span class="tok-str">"\xf7\xe5\xae\xf5\x49\xf7\x82\xcf\x37\x90\x55\xa6\x08\x26\x9b\x16"</span>.,</span> <span class="line" id="L391"> <span class="tok-str">"\x43\x8d\x03\x0f\xd0\xb7\xa5\x4f\xa8\x37\xf2\xad\x20\x1a\x64\x03"</span>.,</span> <span class="line" id="L392"> <span class="tok-str">"\xa5\x90\xd3\xee\x4f\xbf\x04\xe3\x24\x7e\x0d\x27\xf2\x86\x42\x3f"</span>.,</span> <span class="line" id="L393"> <span class="tok-str">"\x5f\xe2\xc1\xa1\x72\xfe\x93\xc4\xb1\x5c\xd3\x7c\xae\xf9\xf5\x38"</span>.,</span> <span class="line" id="L394"> <span class="tok-str">"\x2c\x97\x32\x5c\xbd\x06\xb3\x6e\xb2\x13\x3d\xd0\x8b\x3a\x01\x7c"</span>.,</span> <span class="line" id="L395"> <span class="tok-str">"\x92\xc8\x14\x22\x7a\x6b\xca\x94\x9f\xf0\x65\x9f\x00\x2a\xd3\x9e"</span>.,</span> <span class="line" id="L396"> <span class="tok-str">"\xdc\xe8\x50\x11\x0b\xd8\x32\x8c\xfb\xd5\x08\x41\xd6\x91\x1d\x87"</span>.,</span> <span class="line" id="L397"> <span class="tok-str">"\x67\xf1\x49\x84\xc7\xda\x79\x12\x48\xe3\x2b\xb5\x92\x25\x83\xda"</span>.,</span> <span class="line" id="L398"> <span class="tok-str">"\x19\x38\xf2\xcf\x72\xd5\x4e\xe9\x7e\x94\x16\x6f\xa9\x1d\x2a\x36"</span>.,</span> <span class="line" id="L399"> <span class="tok-str">"\x74\x48\x1e\x96\x46\xed\x49\xfe\x0f\x62\x24\x30\x16\x04\x69\x8e"</span>.,</span> <span class="line" id="L400"> <span class="tok-str">"\x57\xfc\xa5\xde\x98\xa9\xd6\xd8\x00\x64\x38\xd0\x58\x3d\x8a\x1d"</span>.,</span> <span class="line" id="L401"> <span class="tok-str">"\x9f\xec\xde\x1c\xef\xdc\x1c\xbe\xd4\x76\x36\x74\xd9\x57\x53\x59"</span>.,</span> <span class="line" id="L402"> <span class="tok-str">"\xe3\x04\x0c\x00\xeb\x28\xf1\x53\x66\xca\x73\xcb\xd8\x72\xe7\x40"</span>.,</span> <span class="line" id="L403"> <span class="tok-str">"\x76\x97\x00\x9a\x6a\x83\x1d\xfe\xcc\xa9\x1c\x59\x93\x67\x0f\x7a"</span>.,</span> <span class="line" id="L404"> <span class="tok-str">"\x58\x53\x54\x23\x21\xf5\x67\xa0\x05\xd5\x47\xa4\xf0\x47\x59\xbd"</span>.,</span> <span class="line" id="L405"> <span class="tok-str">"\x51\x50\xd1\x77\x2f\x50\x83\x4a\x50\x3e\x06\x9a\x97\x3f\xbd\x7c"</span>.,</span> <span class="line" id="L406"> };</span> <span class="line" id="L407"></span> <span class="line" id="L408"> <span class="tok-kw">const</span> siphash = SipHash128(<span class="tok-number">2</span>, <span class="tok-number">4</span>);</span> <span class="line" id="L409"></span> <span class="line" id="L410"> <span class="tok-kw">var</span> buffer: [<span class="tok-number">64</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L411"> <span class="tok-kw">for</span> (vectors, <span class="tok-number">0</span>..) \|vector, i\| {</span> <span class="line" id="L412"> buffer[i] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>(i));</span> <span class="line" id="L413"></span> <span class="line" id="L414"> <span class="tok-kw">var</span> out: [siphash.mac_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L415"> siphash.create(&out, buffer[<span class="tok-number">0</span>..i], test_key[<span class="tok-number">0</span>..]);</span> <span class="line" id="L416"> <span class="tok-kw">try</span> testing.expectEqual(out, vector);</span> <span class="line" id="L417"> }</span> <span class="line" id="L418">}</span> <span class="line" id="L419"></span> <span class="line" id="L420"><span class="tok-kw">test</span> <span class="tok-str">"iterative non-divisible update"</span> {</span> <span class="line" id="L421"> <span class="tok-kw">var</span> buf: [<span class="tok-number">1024</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L422"> <span class="tok-kw">for</span> (&buf, <span class="tok-number">0</span>..) \|e, i\| {</span> <span class="line" id="L423"> e.* = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>(i));</span> <span class="line" id="L424"> }</span> <span class="line" id="L425"></span> <span class="line" id="L426"> <span class="tok-kw">const</span> key = <span class="tok-str">"0x128dad08f12307"</span>;</span> <span class="line" id="L427"> <span class="tok-kw">const</span> Siphash = SipHash64(<span class="tok-number">2</span>, <span class="tok-number">4</span>);</span> <span class="line" id="L428"></span> <span class="line" id="L429"> <span class="tok-kw">var</span> end: <span class="tok-type">usize</span> = <span class="tok-number">9</span>;</span> <span class="line" id="L430"> <span class="tok-kw">while</span> (end < buf.len) : (end += <span class="tok-number">9</span>) {</span> <span class="line" id="L431"> <span class="tok-kw">const</span> non_iterative_hash = Siphash.toInt(buf[<span class="tok-number">0</span>..end], key[<span class="tok-number">0</span>..]);</span> <span class="line" id="L432"></span> <span class="line" id="L433"> <span class="tok-kw">var</span> siphash = Siphash.init(key);</span> <span class="line" id="L434"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L435"> <span class="tok-kw">while</span> (i < end) : (i += <span class="tok-number">7</span>) {</span> <span class="line" id="L436"> siphash.update(buf[i..<span class="tok-builtin">@min</span>(i + <span class="tok-number">7</span>, end)]);</span> <span class="line" id="L437"> }</span> <span class="line" id="L438"> <span class="tok-kw">const</span> iterative_hash = siphash.finalInt();</span> <span class="line" id="L439"></span> <span class="line" id="L440"> <span class="tok-kw">try</span> std.testing.expectEqual(iterative_hash, non_iterative_hash);</span> <span class="line" id="L441"> }</span> <span class="line" id="L442">}</span> <span class="line" id="L443"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/crypto/blake2.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/blake2.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"../std.zig"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L3"><span class="tok-kw">const</span> math = std.math;</span> <span class="line" id="L4"><span class="tok-kw">const</span> debug = std.debug;</span> <span class="line" id="L5"><span class="tok-kw">const</span> htest = <span class="tok-builtin">@import</span>(<span class="tok-str">"test.zig"</span>);</span> <span class="line" id="L6"></span> <span class="line" id="L7"><span class="tok-kw">const</span> RoundParam = <span class="tok-kw">struct</span> {</span> <span class="line" id="L8"> a: <span class="tok-type">usize</span>,</span> <span class="line" id="L9"> b: <span class="tok-type">usize</span>,</span> <span class="line" id="L10"> c: <span class="tok-type">usize</span>,</span> <span class="line" id="L11"> d: <span class="tok-type">usize</span>,</span> <span class="line" id="L12"> x: <span class="tok-type">usize</span>,</span> <span class="line" id="L13"> y: <span class="tok-type">usize</span>,</span> <span class="line" id="L14">};</span> <span class="line" id="L15"></span> <span class="line" id="L16"><span class="tok-kw">fn</span> <span class="tok-fn">roundParam</span>(a: <span class="tok-type">usize</span>, b: <span class="tok-type">usize</span>, c: <span class="tok-type">usize</span>, d: <span class="tok-type">usize</span>, x: <span class="tok-type">usize</span>, y: <span class="tok-type">usize</span>) RoundParam {</span> <span class="line" id="L17"> <span class="tok-kw">return</span> RoundParam{</span> <span class="line" id="L18"> .a = a,</span> <span class="line" id="L19"> .b = b,</span> <span class="line" id="L20"> .c = c,</span> <span class="line" id="L21"> .d = d,</span> <span class="line" id="L22"> .x = x,</span> <span class="line" id="L23"> .y = y,</span> <span class="line" id="L24"> };</span> <span class="line" id="L25">}</span> <span class="line" id="L26"></span> <span class="line" id="L27"><span class="tok-comment">/////////////////////</span> </span> <span class="line" id="L28"><span class="tok-comment">// Blake2s</span> </span> <span class="line" id="L29"></span> <span class="line" id="L30"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Blake2s128 = Blake2s(<span class="tok-number">128</span>);</span> <span class="line" id="L31"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Blake2s160 = Blake2s(<span class="tok-number">160</span>);</span> <span class="line" id="L32"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Blake2s224 = Blake2s(<span class="tok-number">224</span>);</span> <span class="line" id="L33"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Blake2s256 = Blake2s(<span class="tok-number">256</span>);</span> <span class="line" id="L34"></span> <span class="line" id="L35"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">Blake2s</span>(<span class="tok-kw">comptime</span> out_bits: <span class="tok-type">usize</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L36"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L37"> <span class="tok-kw">const</span> Self = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L38"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> block_length = <span class="tok-number">64</span>;</span> <span class="line" id="L39"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> digest_length = out_bits / <span class="tok-number">8</span>;</span> <span class="line" id="L40"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> key_length_min = <span class="tok-number">0</span>;</span> <span class="line" id="L41"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> key_length_max = <span class="tok-number">32</span>;</span> <span class="line" id="L42"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> key_length = <span class="tok-number">32</span>; <span class="tok-comment">// recommended key length</span> </span> <span class="line" id="L43"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Options = <span class="tok-kw">struct</span> { key: ?[]<span class="tok-kw">const</span> <span class="tok-type">u8</span> = <span class="tok-null">null</span>, salt: ?[<span class="tok-number">8</span>]<span class="tok-type">u8</span> = <span class="tok-null">null</span>, context: ?[<span class="tok-number">8</span>]<span class="tok-type">u8</span> = <span class="tok-null">null</span>, expected_out_bits: <span class="tok-type">usize</span> = out_bits };</span> <span class="line" id="L44"></span> <span class="line" id="L45"> <span class="tok-kw">const</span> iv = [<span class="tok-number">8</span>]<span class="tok-type">u32</span>{</span> <span class="line" id="L46"> <span class="tok-number">0x6A09E667</span>,</span> <span class="line" id="L47"> <span class="tok-number">0xBB67AE85</span>,</span> <span class="line" id="L48"> <span class="tok-number">0x3C6EF372</span>,</span> <span class="line" id="L49"> <span class="tok-number">0xA54FF53A</span>,</span> <span class="line" id="L50"> <span class="tok-number">0x510E527F</span>,</span> <span class="line" id="L51"> <span class="tok-number">0x9B05688C</span>,</span> <span class="line" id="L52"> <span class="tok-number">0x1F83D9AB</span>,</span> <span class="line" id="L53"> <span class="tok-number">0x5BE0CD19</span>,</span> <span class="line" id="L54"> };</span> <span class="line" id="L55"></span> <span class="line" id="L56"> <span class="tok-kw">const</span> sigma = [<span class="tok-number">10</span>][<span class="tok-number">16</span>]<span class="tok-type">u8</span>{</span> <span class="line" id="L57"> [_]<span class="tok-type">u8</span>{ <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">8</span>, <span class="tok-number">9</span>, <span class="tok-number">10</span>, <span class="tok-number">11</span>, <span class="tok-number">12</span>, <span class="tok-number">13</span>, <span class="tok-number">14</span>, <span class="tok-number">15</span> },</span> <span class="line" id="L58"> [_]<span class="tok-type">u8</span>{ <span class="tok-number">14</span>, <span class="tok-number">10</span>, <span class="tok-number">4</span>, <span class="tok-number">8</span>, <span class="tok-number">9</span>, <span class="tok-number">15</span>, <span class="tok-number">13</span>, <span class="tok-number">6</span>, <span class="tok-number">1</span>, <span class="tok-number">12</span>, <span class="tok-number">0</span>, <span class="tok-number">2</span>, <span class="tok-number">11</span>, <span class="tok-number">7</span>, <span class="tok-number">5</span>, <span class="tok-number">3</span> },</span> <span class="line" id="L59"> [_]<span class="tok-type">u8</span>{ <span class="tok-number">11</span>, <span class="tok-number">8</span>, <span class="tok-number">12</span>, <span class="tok-number">0</span>, <span class="tok-number">5</span>, <span class="tok-number">2</span>, <span class="tok-number">15</span>, <span class="tok-number">13</span>, <span class="tok-number">10</span>, <span class="tok-number">14</span>, <span class="tok-number">3</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">1</span>, <span class="tok-number">9</span>, <span class="tok-number">4</span> },</span> <span class="line" id="L60"> [_]<span class="tok-type">u8</span>{ <span class="tok-number">7</span>, <span class="tok-number">9</span>, <span class="tok-number">3</span>, <span class="tok-number">1</span>, <span class="tok-number">13</span>, <span class="tok-number">12</span>, <span class="tok-number">11</span>, <span class="tok-number">14</span>, <span class="tok-number">2</span>, <span class="tok-number">6</span>, <span class="tok-number">5</span>, <span class="tok-number">10</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">15</span>, <span class="tok-number">8</span> },</span> <span class="line" id="L61"> [_]<span class="tok-type">u8</span>{ <span class="tok-number">9</span>, <span class="tok-number">0</span>, <span class="tok-number">5</span>, <span class="tok-number">7</span>, <span class="tok-number">2</span>, <span class="tok-number">4</span>, <span class="tok-number">10</span>, <span class="tok-number">15</span>, <span class="tok-number">14</span>, <span class="tok-number">1</span>, <span class="tok-number">11</span>, <span class="tok-number">12</span>, <span class="tok-number">6</span>, <span class="tok-number">8</span>, <span class="tok-number">3</span>, <span class="tok-number">13</span> },</span> <span class="line" id="L62"> [_]<span class="tok-type">u8</span>{ <span class="tok-number">2</span>, <span class="tok-number">12</span>, <span class="tok-number">6</span>, <span class="tok-number">10</span>, <span class="tok-number">0</span>, <span class="tok-number">11</span>, <span class="tok-number">8</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">13</span>, <span class="tok-number">7</span>, <span class="tok-number">5</span>, <span class="tok-number">15</span>, <span class="tok-number">14</span>, <span class="tok-number">1</span>, <span class="tok-number">9</span> },</span> <span class="line" id="L63"> [_]<span class="tok-type">u8</span>{ <span class="tok-number">12</span>, <span class="tok-number">5</span>, <span class="tok-number">1</span>, <span class="tok-number">15</span>, <span class="tok-number">14</span>, <span class="tok-number">13</span>, <span class="tok-number">4</span>, <span class="tok-number">10</span>, <span class="tok-number">0</span>, <span class="tok-number">7</span>, <span class="tok-number">6</span>, <span class="tok-number">3</span>, <span class="tok-number">9</span>, <span class="tok-number">2</span>, <span class="tok-number">8</span>, <span class="tok-number">11</span> },</span> <span class="line" id="L64"> [_]<span class="tok-type">u8</span>{ <span class="tok-number">13</span>, <span class="tok-number">11</span>, <span class="tok-number">7</span>, <span class="tok-number">14</span>, <span class="tok-number">12</span>, <span class="tok-number">1</span>, <span class="tok-number">3</span>, <span class="tok-number">9</span>, <span class="tok-number">5</span>, <span class="tok-number">0</span>, <span class="tok-number">15</span>, <span class="tok-number">4</span>, <span class="tok-number">8</span>, <span class="tok-number">6</span>, <span class="tok-number">2</span>, <span class="tok-number">10</span> },</span> <span class="line" id="L65"> [_]<span class="tok-type">u8</span>{ <span class="tok-number">6</span>, <span class="tok-number">15</span>, <span class="tok-number">14</span>, <span class="tok-number">9</span>, <span class="tok-number">11</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">8</span>, <span class="tok-number">12</span>, <span class="tok-number">2</span>, <span class="tok-number">13</span>, <span class="tok-number">7</span>, <span class="tok-number">1</span>, <span class="tok-number">4</span>, <span class="tok-number">10</span>, <span class="tok-number">5</span> },</span> <span class="line" id="L66"> [_]<span class="tok-type">u8</span>{ <span class="tok-number">10</span>, <span class="tok-number">2</span>, <span class="tok-number">8</span>, <span class="tok-number">4</span>, <span class="tok-number">7</span>, <span class="tok-number">6</span>, <span class="tok-number">1</span>, <span class="tok-number">5</span>, <span class="tok-number">15</span>, <span class="tok-number">11</span>, <span class="tok-number">9</span>, <span class="tok-number">14</span>, <span class="tok-number">3</span>, <span class="tok-number">12</span>, <span class="tok-number">13</span>, <span class="tok-number">0</span> },</span> <span class="line" id="L67"> };</span> <span class="line" id="L68"></span> <span class="line" id="L69"> h: [<span class="tok-number">8</span>]<span class="tok-type">u32</span>,</span> <span class="line" id="L70"> t: <span class="tok-type">u64</span>,</span> <span class="line" id="L71"> <span class="tok-comment">// Streaming cache</span> </span> <span class="line" id="L72"> buf: [<span class="tok-number">64</span>]<span class="tok-type">u8</span>,</span> <span class="line" id="L73"> buf_len: <span class="tok-type">u8</span>,</span> <span class="line" id="L74"></span> <span class="line" id="L75"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">init</span>(options: Options) Self {</span> <span class="line" id="L76"> <span class="tok-kw">comptime</span> debug.assert(<span class="tok-number">8</span> <= out_bits <span class="tok-kw">and</span> out_bits <= <span class="tok-number">256</span>);</span> <span class="line" id="L77"></span> <span class="line" id="L78"> <span class="tok-kw">var</span> d: Self = <span class="tok-null">undefined</span>;</span> <span class="line" id="L79"> d.h = iv;</span> <span class="line" id="L80"></span> <span class="line" id="L81"> <span class="tok-kw">const</span> key_len = <span class="tok-kw">if</span> (options.key) \|key\| key.len <span class="tok-kw">else</span> <span class="tok-number">0</span>;</span> <span class="line" id="L82"> <span class="tok-comment">// default parameters</span> </span> <span class="line" id="L83"> d.h[<span class="tok-number">0</span>] ^= <span class="tok-number">0x01010000</span> ^ <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@truncate</span>(key_len << <span class="tok-number">8</span>)) ^ <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(options.expected_out_bits >> <span class="tok-number">3</span>));</span> <span class="line" id="L84"> d.t = <span class="tok-number">0</span>;</span> <span class="line" id="L85"> d.buf_len = <span class="tok-number">0</span>;</span> <span class="line" id="L86"></span> <span class="line" id="L87"> <span class="tok-kw">if</span> (options.salt) \|salt\| {</span> <span class="line" id="L88"> d.h[<span class="tok-number">4</span>] ^= mem.readIntLittle(<span class="tok-type">u32</span>, salt[<span class="tok-number">0</span>..<span class="tok-number">4</span>]);</span> <span class="line" id="L89"> d.h[<span class="tok-number">5</span>] ^= mem.readIntLittle(<span class="tok-type">u32</span>, salt[<span class="tok-number">4</span>..<span class="tok-number">8</span>]);</span> <span class="line" id="L90"> }</span> <span class="line" id="L91"> <span class="tok-kw">if</span> (options.context) \|context\| {</span> <span class="line" id="L92"> d.h[<span class="tok-number">6</span>] ^= mem.readIntLittle(<span class="tok-type">u32</span>, context[<span class="tok-number">0</span>..<span class="tok-number">4</span>]);</span> <span class="line" id="L93"> d.h[<span class="tok-number">7</span>] ^= mem.readIntLittle(<span class="tok-type">u32</span>, context[<span class="tok-number">4</span>..<span class="tok-number">8</span>]);</span> <span class="line" id="L94"> }</span> <span class="line" id="L95"> <span class="tok-kw">if</span> (key_len > <span class="tok-number">0</span>) {</span> <span class="line" id="L96"> <span class="tok-builtin">@memset</span>(d.buf[key_len..], <span class="tok-number">0</span>);</span> <span class="line" id="L97"> d.update(options.key.?);</span> <span class="line" id="L98"> d.buf_len = <span class="tok-number">64</span>;</span> <span class="line" id="L99"> }</span> <span class="line" id="L100"> <span class="tok-kw">return</span> d;</span> <span class="line" id="L101"> }</span> <span class="line" id="L102"></span> <span class="line" id="L103"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">hash</span>(b: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, out: [digest_length]<span class="tok-type">u8</span>, options: Options) <span class="tok-type">void</span> {</span> <span class="line" id="L104"> <span class="tok-kw">var</span> d = Self.init(options);</span> <span class="line" id="L105"> d.update(b);</span> <span class="line" id="L106"> d.final(out);</span> <span class="line" id="L107"> }</span> <span class="line" id="L108"></span> <span class="line" id="L109"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">update</span>(d: Self, b: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L110"> <span class="tok-kw">var</span> off: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L111"></span> <span class="line" id="L112"> <span class="tok-comment">// Partial buffer exists from previous update. Copy into buffer then hash.</span> </span> <span class="line" id="L113"> <span class="tok-kw">if</span> (d.buf_len != <span class="tok-number">0</span> <span class="tok-kw">and</span> d.buf_len + b.len > <span class="tok-number">64</span>) {</span> <span class="line" id="L114"> off += <span class="tok-number">64</span> - d.buf_len;</span> <span class="line" id="L115"> <span class="tok-builtin">@memcpy</span>(d.buf[d.buf_len..][<span class="tok-number">0</span>..off], b[<span class="tok-number">0</span>..off]);</span> <span class="line" id="L116"> d.t += <span class="tok-number">64</span>;</span> <span class="line" id="L117"> d.round(d.buf[<span class="tok-number">0</span>..], <span class="tok-null">false</span>);</span> <span class="line" id="L118"> d.buf_len = <span class="tok-number">0</span>;</span> <span class="line" id="L119"> }</span> <span class="line" id="L120"></span> <span class="line" id="L121"> <span class="tok-comment">// Full middle blocks.</span> </span> <span class="line" id="L122"> <span class="tok-kw">while</span> (off + <span class="tok-number">64</span> < b.len) : (off += <span class="tok-number">64</span>) {</span> <span class="line" id="L123"> d.t += <span class="tok-number">64</span>;</span> <span class="line" id="L124"> d.round(b[off..][<span class="tok-number">0</span>..<span class="tok-number">64</span>], <span class="tok-null">false</span>);</span> <span class="line" id="L125"> }</span> <span class="line" id="L126"></span> <span class="line" id="L127"> <span class="tok-comment">// Copy any remainder for next pass.</span> </span> <span class="line" id="L128"> <span class="tok-kw">const</span> b_slice = b[off..];</span> <span class="line" id="L129"> <span class="tok-builtin">@memcpy</span>(d.buf[d.buf_len..][<span class="tok-number">0</span>..b_slice.len], b_slice);</span> <span class="line" id="L130"> d.buf_len += <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>(b_slice.len));</span> <span class="line" id="L131"> }</span> <span class="line" id="L132"></span> <span class="line" id="L133"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">final</span>(d: Self, out: [digest_length]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L134"> <span class="tok-builtin">@memset</span>(d.buf[d.buf_len..], <span class="tok-number">0</span>);</span> <span class="line" id="L135"> d.t += d.buf_len;</span> <span class="line" id="L136"> d.round(d.buf[<span class="tok-number">0</span>..], <span class="tok-null">true</span>);</span> <span class="line" id="L137"> <span class="tok-kw">for</span> (&d.h) \|x\| x. = mem.nativeToLittle(<span class="tok-type">u32</span>, x.);</span> <span class="line" id="L138"> out. = <span class="tok-builtin">@as</span>([digest_length]<span class="tok-type">u8</span>, <span class="tok-builtin">@ptrCast</span>(&d.h)).;</span> <span class="line" id="L139"> }</span> <span class="line" id="L140"></span> <span class="line" id="L141"> <span class="tok-kw">fn</span> <span class="tok-fn">round</span>(d: Self, b: <span class="tok-kw">const</span> [<span class="tok-number">64</span>]<span class="tok-type">u8</span>, last: <span class="tok-type">bool</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L142"> <span class="tok-kw">var</span> m: [<span class="tok-number">16</span>]<span class="tok-type">u32</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L143"> <span class="tok-kw">var</span> v: [<span class="tok-number">16</span>]<span class="tok-type">u32</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L144"></span> <span class="line" id="L145"> <span class="tok-kw">for</span> (&m, <span class="tok-number">0</span>..) \|r, i\| {</span> <span class="line" id="L146"> r. = mem.readIntLittle(<span class="tok-type">u32</span>, b[<span class="tok-number">4</span> * i ..][<span class="tok-number">0</span>..<span class="tok-number">4</span>]);</span> <span class="line" id="L147"> }</span> <span class="line" id="L148"></span> <span class="line" id="L149"> <span class="tok-kw">var</span> k: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L150"> <span class="tok-kw">while</span> (k < <span class="tok-number">8</span>) : (k += <span class="tok-number">1</span>) {</span> <span class="line" id="L151"> v[k] = d.h[k];</span> <span class="line" id="L152"> v[k + <span class="tok-number">8</span>] = iv[k];</span> <span class="line" id="L153"> }</span> <span class="line" id="L154"></span> <span class="line" id="L155"> v[<span class="tok-number">12</span>] ^= <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@truncate</span>(d.t));</span> <span class="line" id="L156"> v[<span class="tok-number">13</span>] ^= <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(d.t >> <span class="tok-number">32</span>));</span> <span class="line" id="L157"> <span class="tok-kw">if</span> (last) v[<span class="tok-number">14</span>] = ~v[<span class="tok-number">14</span>];</span> <span class="line" id="L158"></span> <span class="line" id="L159"> <span class="tok-kw">const</span> rounds = <span class="tok-kw">comptime</span> [_]RoundParam{</span> <span class="line" id="L160"> roundParam(<span class="tok-number">0</span>, <span class="tok-number">4</span>, <span class="tok-number">8</span>, <span class="tok-number">12</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>),</span> <span class="line" id="L161"> roundParam(<span class="tok-number">1</span>, <span class="tok-number">5</span>, <span class="tok-number">9</span>, <span class="tok-number">13</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>),</span> <span class="line" id="L162"> roundParam(<span class="tok-number">2</span>, <span class="tok-number">6</span>, <span class="tok-number">10</span>, <span class="tok-number">14</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>),</span> <span class="line" id="L163"> roundParam(<span class="tok-number">3</span>, <span class="tok-number">7</span>, <span class="tok-number">11</span>, <span class="tok-number">15</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>),</span> <span class="line" id="L164"> roundParam(<span class="tok-number">0</span>, <span class="tok-number">5</span>, <span class="tok-number">10</span>, <span class="tok-number">15</span>, <span class="tok-number">8</span>, <span class="tok-number">9</span>),</span> <span class="line" id="L165"> roundParam(<span class="tok-number">1</span>, <span class="tok-number">6</span>, <span class="tok-number">11</span>, <span class="tok-number">12</span>, <span class="tok-number">10</span>, <span class="tok-number">11</span>),</span> <span class="line" id="L166"> roundParam(<span class="tok-number">2</span>, <span class="tok-number">7</span>, <span class="tok-number">8</span>, <span class="tok-number">13</span>, <span class="tok-number">12</span>, <span class="tok-number">13</span>),</span> <span class="line" id="L167"> roundParam(<span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">9</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">15</span>),</span> <span class="line" id="L168"> };</span> <span class="line" id="L169"></span> <span class="line" id="L170"> <span class="tok-kw">comptime</span> <span class="tok-kw">var</span> j: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L171"> <span class="tok-kw">inline</span> <span class="tok-kw">while</span> (j < <span class="tok-number">10</span>) : (j += <span class="tok-number">1</span>) {</span> <span class="line" id="L172"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (rounds) \|r\| {</span> <span class="line" id="L173"> v[r.a] = v[r.a] +% v[r.b] +% m[sigma[j][r.x]];</span> <span class="line" id="L174"> v[r.d] = math.rotr(<span class="tok-type">u32</span>, v[r.d] ^ v[r.a], <span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-number">16</span>));</span> <span class="line" id="L175"> v[r.c] = v[r.c] +% v[r.d];</span> <span class="line" id="L176"> v[r.b] = math.rotr(<span class="tok-type">u32</span>, v[r.b] ^ v[r.c], <span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-number">12</span>));</span> <span class="line" id="L177"> v[r.a] = v[r.a] +% v[r.b] +% m[sigma[j][r.y]];</span> <span class="line" id="L178"> v[r.d] = math.rotr(<span class="tok-type">u32</span>, v[r.d] ^ v[r.a], <span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-number">8</span>));</span> <span class="line" id="L179"> v[r.c] = v[r.c] +% v[r.d];</span> <span class="line" id="L180"> v[r.b] = math.rotr(<span class="tok-type">u32</span>, v[r.b] ^ v[r.c], <span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-number">7</span>));</span> <span class="line" id="L181"> }</span> <span class="line" id="L182"> }</span> <span class="line" id="L183"></span> <span class="line" id="L184"> <span class="tok-kw">for</span> (&d.h, <span class="tok-number">0</span>..) \|r, i\| {</span> <span class="line" id="L185"> r. ^= v[i] ^ v[i + <span class="tok-number">8</span>];</span> <span class="line" id="L186"> }</span> <span class="line" id="L187"> }</span> <span class="line" id="L188"></span> <span class="line" id="L189"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Error = <span class="tok-kw">error</span>{};</span> <span class="line" id="L190"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Writer = std.io.Writer(Self, Error, write);</span> <span class="line" id="L191"></span> <span class="line" id="L192"> <span class="tok-kw">fn</span> <span class="tok-fn">write</span>(self: Self, bytes: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) Error!<span class="tok-type">usize</span> {</span> <span class="line" id="L193"> self.update(bytes);</span> <span class="line" id="L194"> <span class="tok-kw">return</span> bytes.len;</span> <span class="line" id="L195"> }</span> <span class="line" id="L196"></span> <span class="line" id="L197"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">writer</span>(self: Self) Writer {</span> <span class="line" id="L198"> <span class="tok-kw">return</span> .{ .context = self };</span> <span class="line" id="L199"> }</span> <span class="line" id="L200"> };</span> <span class="line" id="L201">}</span> <span class="line" id="L202"></span> <span class="line" id="L203"><span class="tok-kw">test</span> <span class="tok-str">"blake2s160 single"</span> {</span> <span class="line" id="L204"> <span class="tok-kw">const</span> h1 = <span class="tok-str">"354c9c33f735962418bdacb9479873429c34916f"</span>;</span> <span class="line" id="L205"> <span class="tok-kw">try</span> htest.assertEqualHash(Blake2s160, h1, <span class="tok-str">""</span>);</span> <span class="line" id="L206"></span> <span class="line" id="L207"> <span class="tok-kw">const</span> h2 = <span class="tok-str">"5ae3b99be29b01834c3b508521ede60438f8de17"</span>;</span> <span class="line" id="L208"> <span class="tok-kw">try</span> htest.assertEqualHash(Blake2s160, h2, <span class="tok-str">"abc"</span>);</span> <span class="line" id="L209"></span> <span class="line" id="L210"> <span class="tok-kw">const</span> h3 = <span class="tok-str">"5a604fec9713c369e84b0ed68daed7d7504ef240"</span>;</span> <span class="line" id="L211"> <span class="tok-kw">try</span> htest.assertEqualHash(Blake2s160, h3, <span class="tok-str">"The quick brown fox jumps over the lazy dog"</span>);</span> <span class="line" id="L212"></span> <span class="line" id="L213"> <span class="tok-kw">const</span> h4 = <span class="tok-str">"b60c4dc60e2681e58fbc24e77f07e02c69e72ed0"</span>;</span> <span class="line" id="L214"> <span class="tok-kw">try</span> htest.assertEqualHash(Blake2s160, h4, <span class="tok-str">"a"</span> * <span class="tok-number">32</span> ++ <span class="tok-str">"b"</span> <span class="tok-number">32</span>);</span> <span class="line" id="L215">}</span> <span class="line" id="L216"></span> <span class="line" id="L217"><span class="tok-kw">test</span> <span class="tok-str">"blake2s160 streaming"</span> {</span> <span class="line" id="L218"> <span class="tok-kw">var</span> h = Blake2s160.init(.{});</span> <span class="line" id="L219"> <span class="tok-kw">var</span> out: [<span class="tok-number">20</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L220"></span> <span class="line" id="L221"> <span class="tok-kw">const</span> h1 = <span class="tok-str">"354c9c33f735962418bdacb9479873429c34916f"</span>;</span> <span class="line" id="L222"></span> <span class="line" id="L223"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L224"> <span class="tok-kw">try</span> htest.assertEqual(h1, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L225"></span> <span class="line" id="L226"> <span class="tok-kw">const</span> h2 = <span class="tok-str">"5ae3b99be29b01834c3b508521ede60438f8de17"</span>;</span> <span class="line" id="L227"></span> <span class="line" id="L228"> h = Blake2s160.init(.{});</span> <span class="line" id="L229"> h.update(<span class="tok-str">"abc"</span>);</span> <span class="line" id="L230"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L231"> <span class="tok-kw">try</span> htest.assertEqual(h2, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L232"></span> <span class="line" id="L233"> h = Blake2s160.init(.{});</span> <span class="line" id="L234"> h.update(<span class="tok-str">"a"</span>);</span> <span class="line" id="L235"> h.update(<span class="tok-str">"b"</span>);</span> <span class="line" id="L236"> h.update(<span class="tok-str">"c"</span>);</span> <span class="line" id="L237"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L238"> <span class="tok-kw">try</span> htest.assertEqual(h2, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L239"></span> <span class="line" id="L240"> <span class="tok-kw">const</span> h3 = <span class="tok-str">"b60c4dc60e2681e58fbc24e77f07e02c69e72ed0"</span>;</span> <span class="line" id="L241"></span> <span class="line" id="L242"> h = Blake2s160.init(.{});</span> <span class="line" id="L243"> h.update(<span class="tok-str">"a"</span> <span class="tok-number">32</span>);</span> <span class="line" id="L244"> h.update(<span class="tok-str">"b"</span> <span class="tok-number">32</span>);</span> <span class="line" id="L245"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L246"> <span class="tok-kw">try</span> htest.assertEqual(h3, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L247"></span> <span class="line" id="L248"> h = Blake2s160.init(.{});</span> <span class="line" id="L249"> h.update(<span class="tok-str">"a"</span> <span class="tok-number">32</span> ++ <span class="tok-str">"b"</span> <span class="tok-number">32</span>);</span> <span class="line" id="L250"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L251"> <span class="tok-kw">try</span> htest.assertEqual(h3, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L252"></span> <span class="line" id="L253"> <span class="tok-kw">const</span> h4 = <span class="tok-str">"4667fd60791a7fe41f939bca646b4529e296bd68"</span>;</span> <span class="line" id="L254"></span> <span class="line" id="L255"> h = Blake2s160.init(.{ .context = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x69</span>} <span class="tok-number">8</span>, .salt = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x42</span>} <span class="tok-number">8</span> });</span> <span class="line" id="L256"> h.update(<span class="tok-str">"a"</span> <span class="tok-number">32</span>);</span> <span class="line" id="L257"> h.update(<span class="tok-str">"b"</span> <span class="tok-number">32</span>);</span> <span class="line" id="L258"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L259"> <span class="tok-kw">try</span> htest.assertEqual(h4, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L260"></span> <span class="line" id="L261"> h = Blake2s160.init(.{ .context = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x69</span>} <span class="tok-number">8</span>, .salt = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x42</span>} <span class="tok-number">8</span> });</span> <span class="line" id="L262"> h.update(<span class="tok-str">"a"</span> <span class="tok-number">32</span> ++ <span class="tok-str">"b"</span> <span class="tok-number">32</span>);</span> <span class="line" id="L263"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L264"> <span class="tok-kw">try</span> htest.assertEqual(h4, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L265">}</span> <span class="line" id="L266"></span> <span class="line" id="L267"><span class="tok-kw">test</span> <span class="tok-str">"comptime blake2s160"</span> {</span> <span class="line" id="L268"> <span class="tok-comment">//comptime</span> </span> <span class="line" id="L269"> {</span> <span class="line" id="L270"> <span class="tok-builtin">@setEvalBranchQuota</span>(<span class="tok-number">10000</span>);</span> <span class="line" id="L271"> <span class="tok-kw">var</span> block = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} Blake2s160.block_length;</span> <span class="line" id="L272"> <span class="tok-kw">var</span> out: [Blake2s160.digest_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L273"></span> <span class="line" id="L274"> <span class="tok-kw">const</span> h1 = <span class="tok-str">"2c56ad9d0b2c8b474aafa93ab307db2f0940105f"</span>;</span> <span class="line" id="L275"></span> <span class="line" id="L276"> <span class="tok-kw">try</span> htest.assertEqualHash(Blake2s160, h1, block[<span class="tok-number">0</span>..]);</span> <span class="line" id="L277"></span> <span class="line" id="L278"> <span class="tok-kw">var</span> h = Blake2s160.init(.{});</span> <span class="line" id="L279"> h.update(&block);</span> <span class="line" id="L280"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L281"></span> <span class="line" id="L282"> <span class="tok-kw">try</span> htest.assertEqual(h1, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L283"> }</span> <span class="line" id="L284">}</span> <span class="line" id="L285"></span> <span class="line" id="L286"><span class="tok-kw">test</span> <span class="tok-str">"blake2s224 single"</span> {</span> <span class="line" id="L287"> <span class="tok-kw">const</span> h1 = <span class="tok-str">"1fa1291e65248b37b3433475b2a0dd63d54a11ecc4e3e034e7bc1ef4"</span>;</span> <span class="line" id="L288"> <span class="tok-kw">try</span> htest.assertEqualHash(Blake2s224, h1, <span class="tok-str">""</span>);</span> <span class="line" id="L289"></span> <span class="line" id="L290"> <span class="tok-kw">const</span> h2 = <span class="tok-str">"0b033fc226df7abde29f67a05d3dc62cf271ef3dfea4d387407fbd55"</span>;</span> <span class="line" id="L291"> <span class="tok-kw">try</span> htest.assertEqualHash(Blake2s224, h2, <span class="tok-str">"abc"</span>);</span> <span class="line" id="L292"></span> <span class="line" id="L293"> <span class="tok-kw">const</span> h3 = <span class="tok-str">"e4e5cb6c7cae41982b397bf7b7d2d9d1949823ae78435326e8db4912"</span>;</span> <span class="line" id="L294"> <span class="tok-kw">try</span> htest.assertEqualHash(Blake2s224, h3, <span class="tok-str">"The quick brown fox jumps over the lazy dog"</span>);</span> <span class="line" id="L295"></span> <span class="line" id="L296"> <span class="tok-kw">const</span> h4 = <span class="tok-str">"557381a78facd2b298640f4e32113e58967d61420af1aa939d0cfe01"</span>;</span> <span class="line" id="L297"> <span class="tok-kw">try</span> htest.assertEqualHash(Blake2s224, h4, <span class="tok-str">"a"</span> <span class="tok-number">32</span> ++ <span class="tok-str">"b"</span> <span class="tok-number">32</span>);</span> <span class="line" id="L298">}</span> <span class="line" id="L299"></span> <span class="line" id="L300"><span class="tok-kw">test</span> <span class="tok-str">"blake2s224 streaming"</span> {</span> <span class="line" id="L301"> <span class="tok-kw">var</span> h = Blake2s224.init(.{});</span> <span class="line" id="L302"> <span class="tok-kw">var</span> out: [<span class="tok-number">28</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L303"></span> <span class="line" id="L304"> <span class="tok-kw">const</span> h1 = <span class="tok-str">"1fa1291e65248b37b3433475b2a0dd63d54a11ecc4e3e034e7bc1ef4"</span>;</span> <span class="line" id="L305"></span> <span class="line" id="L306"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L307"> <span class="tok-kw">try</span> htest.assertEqual(h1, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L308"></span> <span class="line" id="L309"> <span class="tok-kw">const</span> h2 = <span class="tok-str">"0b033fc226df7abde29f67a05d3dc62cf271ef3dfea4d387407fbd55"</span>;</span> <span class="line" id="L310"></span> <span class="line" id="L311"> h = Blake2s224.init(.{});</span> <span class="line" id="L312"> h.update(<span class="tok-str">"abc"</span>);</span> <span class="line" id="L313"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L314"> <span class="tok-kw">try</span> htest.assertEqual(h2, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L315"></span> <span class="line" id="L316"> h = Blake2s224.init(.{});</span> <span class="line" id="L317"> h.update(<span class="tok-str">"a"</span>);</span> <span class="line" id="L318"> h.update(<span class="tok-str">"b"</span>);</span> <span class="line" id="L319"> h.update(<span class="tok-str">"c"</span>);</span> <span class="line" id="L320"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L321"> <span class="tok-kw">try</span> htest.assertEqual(h2, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L322"></span> <span class="line" id="L323"> <span class="tok-kw">const</span> h3 = <span class="tok-str">"557381a78facd2b298640f4e32113e58967d61420af1aa939d0cfe01"</span>;</span> <span class="line" id="L324"></span> <span class="line" id="L325"> h = Blake2s224.init(.{});</span> <span class="line" id="L326"> h.update(<span class="tok-str">"a"</span> <span class="tok-number">32</span>);</span> <span class="line" id="L327"> h.update(<span class="tok-str">"b"</span> <span class="tok-number">32</span>);</span> <span class="line" id="L328"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L329"> <span class="tok-kw">try</span> htest.assertEqual(h3, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L330"></span> <span class="line" id="L331"> h = Blake2s224.init(.{});</span> <span class="line" id="L332"> h.update(<span class="tok-str">"a"</span> <span class="tok-number">32</span> ++ <span class="tok-str">"b"</span> <span class="tok-number">32</span>);</span> <span class="line" id="L333"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L334"> <span class="tok-kw">try</span> htest.assertEqual(h3, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L335"></span> <span class="line" id="L336"> <span class="tok-kw">const</span> h4 = <span class="tok-str">"a4d6a9d253441b80e5dfd60a04db169ffab77aec56a2855c402828c3"</span>;</span> <span class="line" id="L337"></span> <span class="line" id="L338"> h = Blake2s224.init(.{ .context = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x69</span>} <span class="tok-number">8</span>, .salt = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x42</span>} <span class="tok-number">8</span> });</span> <span class="line" id="L339"> h.update(<span class="tok-str">"a"</span> <span class="tok-number">32</span>);</span> <span class="line" id="L340"> h.update(<span class="tok-str">"b"</span> <span class="tok-number">32</span>);</span> <span class="line" id="L341"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L342"> <span class="tok-kw">try</span> htest.assertEqual(h4, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L343"></span> <span class="line" id="L344"> h = Blake2s224.init(.{ .context = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x69</span>} <span class="tok-number">8</span>, .salt = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x42</span>} <span class="tok-number">8</span> });</span> <span class="line" id="L345"> h.update(<span class="tok-str">"a"</span> <span class="tok-number">32</span> ++ <span class="tok-str">"b"</span> <span class="tok-number">32</span>);</span> <span class="line" id="L346"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L347"> <span class="tok-kw">try</span> htest.assertEqual(h4, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L348">}</span> <span class="line" id="L349"></span> <span class="line" id="L350"><span class="tok-kw">test</span> <span class="tok-str">"comptime blake2s224"</span> {</span> <span class="line" id="L351"> <span class="tok-kw">comptime</span> {</span> <span class="line" id="L352"> <span class="tok-builtin">@setEvalBranchQuota</span>(<span class="tok-number">10000</span>);</span> <span class="line" id="L353"> <span class="tok-kw">var</span> block = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} Blake2s224.block_length;</span> <span class="line" id="L354"> <span class="tok-kw">var</span> out: [Blake2s224.digest_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L355"></span> <span class="line" id="L356"> <span class="tok-kw">const</span> h1 = <span class="tok-str">"86b7611563293f8c73627df7a6d6ba25ca0548c2a6481f7d116ee576"</span>;</span> <span class="line" id="L357"></span> <span class="line" id="L358"> <span class="tok-kw">try</span> htest.assertEqualHash(Blake2s224, h1, block[<span class="tok-number">0</span>..]);</span> <span class="line" id="L359"></span> <span class="line" id="L360"> <span class="tok-kw">var</span> h = Blake2s224.init(.{});</span> <span class="line" id="L361"> h.update(&block);</span> <span class="line" id="L362"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L363"></span> <span class="line" id="L364"> <span class="tok-kw">try</span> htest.assertEqual(h1, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L365"> }</span> <span class="line" id="L366">}</span> <span class="line" id="L367"></span> <span class="line" id="L368"><span class="tok-kw">test</span> <span class="tok-str">"blake2s256 single"</span> {</span> <span class="line" id="L369"> <span class="tok-kw">const</span> h1 = <span class="tok-str">"69217a3079908094e11121d042354a7c1f55b6482ca1a51e1b250dfd1ed0eef9"</span>;</span> <span class="line" id="L370"> <span class="tok-kw">try</span> htest.assertEqualHash(Blake2s256, h1, <span class="tok-str">""</span>);</span> <span class="line" id="L371"></span> <span class="line" id="L372"> <span class="tok-kw">const</span> h2 = <span class="tok-str">"508c5e8c327c14e2e1a72ba34eeb452f37458b209ed63a294d999b4c86675982"</span>;</span> <span class="line" id="L373"> <span class="tok-kw">try</span> htest.assertEqualHash(Blake2s256, h2, <span class="tok-str">"abc"</span>);</span> <span class="line" id="L374"></span> <span class="line" id="L375"> <span class="tok-kw">const</span> h3 = <span class="tok-str">"606beeec743ccbeff6cbcdf5d5302aa855c256c29b88c8ed331ea1a6bf3c8812"</span>;</span> <span class="line" id="L376"> <span class="tok-kw">try</span> htest.assertEqualHash(Blake2s256, h3, <span class="tok-str">"The quick brown fox jumps over the lazy dog"</span>);</span> <span class="line" id="L377"></span> <span class="line" id="L378"> <span class="tok-kw">const</span> h4 = <span class="tok-str">"8d8711dade07a6b92b9a3ea1f40bee9b2c53ff3edd2a273dec170b0163568977"</span>;</span> <span class="line" id="L379"> <span class="tok-kw">try</span> htest.assertEqualHash(Blake2s256, h4, <span class="tok-str">"a"</span> <span class="tok-number">32</span> ++ <span class="tok-str">"b"</span> <span class="tok-number">32</span>);</span> <span class="line" id="L380">}</span> <span class="line" id="L381"></span> <span class="line" id="L382"><span class="tok-kw">test</span> <span class="tok-str">"blake2s256 streaming"</span> {</span> <span class="line" id="L383"> <span class="tok-kw">var</span> h = Blake2s256.init(.{});</span> <span class="line" id="L384"> <span class="tok-kw">var</span> out: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L385"></span> <span class="line" id="L386"> <span class="tok-kw">const</span> h1 = <span class="tok-str">"69217a3079908094e11121d042354a7c1f55b6482ca1a51e1b250dfd1ed0eef9"</span>;</span> <span class="line" id="L387"></span> <span class="line" id="L388"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L389"> <span class="tok-kw">try</span> htest.assertEqual(h1, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L390"></span> <span class="line" id="L391"> <span class="tok-kw">const</span> h2 = <span class="tok-str">"508c5e8c327c14e2e1a72ba34eeb452f37458b209ed63a294d999b4c86675982"</span>;</span> <span class="line" id="L392"></span> <span class="line" id="L393"> h = Blake2s256.init(.{});</span> <span class="line" id="L394"> h.update(<span class="tok-str">"abc"</span>);</span> <span class="line" id="L395"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L396"> <span class="tok-kw">try</span> htest.assertEqual(h2, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L397"></span> <span class="line" id="L398"> h = Blake2s256.init(.{});</span> <span class="line" id="L399"> h.update(<span class="tok-str">"a"</span>);</span> <span class="line" id="L400"> h.update(<span class="tok-str">"b"</span>);</span> <span class="line" id="L401"> h.update(<span class="tok-str">"c"</span>);</span> <span class="line" id="L402"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L403"> <span class="tok-kw">try</span> htest.assertEqual(h2, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L404"></span> <span class="line" id="L405"> <span class="tok-kw">const</span> h3 = <span class="tok-str">"8d8711dade07a6b92b9a3ea1f40bee9b2c53ff3edd2a273dec170b0163568977"</span>;</span> <span class="line" id="L406"></span> <span class="line" id="L407"> h = Blake2s256.init(.{});</span> <span class="line" id="L408"> h.update(<span class="tok-str">"a"</span> <span class="tok-number">32</span>);</span> <span class="line" id="L409"> h.update(<span class="tok-str">"b"</span> <span class="tok-number">32</span>);</span> <span class="line" id="L410"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L411"> <span class="tok-kw">try</span> htest.assertEqual(h3, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L412"></span> <span class="line" id="L413"> h = Blake2s256.init(.{});</span> <span class="line" id="L414"> h.update(<span class="tok-str">"a"</span> <span class="tok-number">32</span> ++ <span class="tok-str">"b"</span> <span class="tok-number">32</span>);</span> <span class="line" id="L415"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L416"> <span class="tok-kw">try</span> htest.assertEqual(h3, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L417">}</span> <span class="line" id="L418"></span> <span class="line" id="L419"><span class="tok-kw">test</span> <span class="tok-str">"blake2s256 keyed"</span> {</span> <span class="line" id="L420"> <span class="tok-kw">var</span> out: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L421"></span> <span class="line" id="L422"> <span class="tok-kw">const</span> h1 = <span class="tok-str">"10f918da4d74fab3302e48a5d67d03804b1ec95372a62a0f33b7c9fa28ba1ae6"</span>;</span> <span class="line" id="L423"> <span class="tok-kw">const</span> key = <span class="tok-str">"secret_key"</span>;</span> <span class="line" id="L424"></span> <span class="line" id="L425"> Blake2s256.hash(<span class="tok-str">"a"</span> <span class="tok-number">64</span> ++ <span class="tok-str">"b"</span> <span class="tok-number">64</span>, &out, .{ .key = key });</span> <span class="line" id="L426"> <span class="tok-kw">try</span> htest.assertEqual(h1, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L427"></span> <span class="line" id="L428"> <span class="tok-kw">var</span> h = Blake2s256.init(.{ .key = key });</span> <span class="line" id="L429"> h.update(<span class="tok-str">"a"</span> <span class="tok-number">64</span> ++ <span class="tok-str">"b"</span> <span class="tok-number">64</span>);</span> <span class="line" id="L430"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L431"></span> <span class="line" id="L432"> <span class="tok-kw">try</span> htest.assertEqual(h1, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L433"></span> <span class="line" id="L434"> h = Blake2s256.init(.{ .key = key });</span> <span class="line" id="L435"> h.update(<span class="tok-str">"a"</span> <span class="tok-number">64</span>);</span> <span class="line" id="L436"> h.update(<span class="tok-str">"b"</span> <span class="tok-number">64</span>);</span> <span class="line" id="L437"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L438"></span> <span class="line" id="L439"> <span class="tok-kw">try</span> htest.assertEqual(h1, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L440">}</span> <span class="line" id="L441"></span> <span class="line" id="L442"><span class="tok-kw">test</span> <span class="tok-str">"comptime blake2s256"</span> {</span> <span class="line" id="L443"> <span class="tok-kw">comptime</span> {</span> <span class="line" id="L444"> <span class="tok-builtin">@setEvalBranchQuota</span>(<span class="tok-number">10000</span>);</span> <span class="line" id="L445"> <span class="tok-kw">var</span> block = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} Blake2s256.block_length;</span> <span class="line" id="L446"> <span class="tok-kw">var</span> out: [Blake2s256.digest_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L447"></span> <span class="line" id="L448"> <span class="tok-kw">const</span> h1 = <span class="tok-str">"ae09db7cd54f42b490ef09b6bc541af688e4959bb8c53f359a6f56e38ab454a3"</span>;</span> <span class="line" id="L449"></span> <span class="line" id="L450"> <span class="tok-kw">try</span> htest.assertEqualHash(Blake2s256, h1, block[<span class="tok-number">0</span>..]);</span> <span class="line" id="L451"></span> <span class="line" id="L452"> <span class="tok-kw">var</span> h = Blake2s256.init(.{});</span> <span class="line" id="L453"> h.update(&block);</span> <span class="line" id="L454"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L455"></span> <span class="line" id="L456"> <span class="tok-kw">try</span> htest.assertEqual(h1, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L457"> }</span> <span class="line" id="L458">}</span> <span class="line" id="L459"></span> <span class="line" id="L460"><span class="tok-comment">/////////////////////</span> </span> <span class="line" id="L461"><span class="tok-comment">// Blake2b</span> </span> <span class="line" id="L462"></span> <span class="line" id="L463"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Blake2b128 = Blake2b(<span class="tok-number">128</span>);</span> <span class="line" id="L464"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Blake2b160 = Blake2b(<span class="tok-number">160</span>);</span> <span class="line" id="L465"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Blake2b256 = Blake2b(<span class="tok-number">256</span>);</span> <span class="line" id="L466"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Blake2b384 = Blake2b(<span class="tok-number">384</span>);</span> <span class="line" id="L467"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Blake2b512 = Blake2b(<span class="tok-number">512</span>);</span> <span class="line" id="L468"></span> <span class="line" id="L469"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">Blake2b</span>(<span class="tok-kw">comptime</span> out_bits: <span class="tok-type">usize</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L470"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L471"> <span class="tok-kw">const</span> Self = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L472"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> block_length = <span class="tok-number">128</span>;</span> <span class="line" id="L473"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> digest_length = out_bits / <span class="tok-number">8</span>;</span> <span class="line" id="L474"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> key_length_min = <span class="tok-number">0</span>;</span> <span class="line" id="L475"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> key_length_max = <span class="tok-number">64</span>;</span> <span class="line" id="L476"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> key_length = <span class="tok-number">32</span>; <span class="tok-comment">// recommended key length</span> </span> <span class="line" id="L477"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Options = <span class="tok-kw">struct</span> { key: ?[]<span class="tok-kw">const</span> <span class="tok-type">u8</span> = <span class="tok-null">null</span>, salt: ?[<span class="tok-number">16</span>]<span class="tok-type">u8</span> = <span class="tok-null">null</span>, context: ?[<span class="tok-number">16</span>]<span class="tok-type">u8</span> = <span class="tok-null">null</span>, expected_out_bits: <span class="tok-type">usize</span> = out_bits };</span> <span class="line" id="L478"></span> <span class="line" id="L479"> <span class="tok-kw">const</span> iv = [<span class="tok-number">8</span>]<span class="tok-type">u64</span>{</span> <span class="line" id="L480"> <span class="tok-number">0x6a09e667f3bcc908</span>,</span> <span class="line" id="L481"> <span class="tok-number">0xbb67ae8584caa73b</span>,</span> <span class="line" id="L482"> <span class="tok-number">0x3c6ef372fe94f82b</span>,</span> <span class="line" id="L483"> <span class="tok-number">0xa54ff53a5f1d36f1</span>,</span> <span class="line" id="L484"> <span class="tok-number">0x510e527fade682d1</span>,</span> <span class="line" id="L485"> <span class="tok-number">0x9b05688c2b3e6c1f</span>,</span> <span class="line" id="L486"> <span class="tok-number">0x1f83d9abfb41bd6b</span>,</span> <span class="line" id="L487"> <span class="tok-number">0x5be0cd19137e2179</span>,</span> <span class="line" id="L488"> };</span> <span class="line" id="L489"></span> <span class="line" id="L490"> <span class="tok-kw">const</span> sigma = [<span class="tok-number">12</span>][<span class="tok-number">16</span>]<span class="tok-type">u8</span>{</span> <span class="line" id="L491"> [_]<span class="tok-type">u8</span>{ <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">8</span>, <span class="tok-number">9</span>, <span class="tok-number">10</span>, <span class="tok-number">11</span>, <span class="tok-number">12</span>, <span class="tok-number">13</span>, <span class="tok-number">14</span>, <span class="tok-number">15</span> },</span> <span class="line" id="L492"> [_]<span class="tok-type">u8</span>{ <span class="tok-number">14</span>, <span class="tok-number">10</span>, <span class="tok-number">4</span>, <span class="tok-number">8</span>, <span class="tok-number">9</span>, <span class="tok-number">15</span>, <span class="tok-number">13</span>, <span class="tok-number">6</span>, <span class="tok-number">1</span>, <span class="tok-number">12</span>, <span class="tok-number">0</span>, <span class="tok-number">2</span>, <span class="tok-number">11</span>, <span class="tok-number">7</span>, <span class="tok-number">5</span>, <span class="tok-number">3</span> },</span> <span class="line" id="L493"> [_]<span class="tok-type">u8</span>{ <span class="tok-number">11</span>, <span class="tok-number">8</span>, <span class="tok-number">12</span>, <span class="tok-number">0</span>, <span class="tok-number">5</span>, <span class="tok-number">2</span>, <span class="tok-number">15</span>, <span class="tok-number">13</span>, <span class="tok-number">10</span>, <span class="tok-number">14</span>, <span class="tok-number">3</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">1</span>, <span class="tok-number">9</span>, <span class="tok-number">4</span> },</span> <span class="line" id="L494"> [_]<span class="tok-type">u8</span>{ <span class="tok-number">7</span>, <span class="tok-number">9</span>, <span class="tok-number">3</span>, <span class="tok-number">1</span>, <span class="tok-number">13</span>, <span class="tok-number">12</span>, <span class="tok-number">11</span>, <span class="tok-number">14</span>, <span class="tok-number">2</span>, <span class="tok-number">6</span>, <span class="tok-number">5</span>, <span class="tok-number">10</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">15</span>, <span class="tok-number">8</span> },</span> <span class="line" id="L495"> [_]<span class="tok-type">u8</span>{ <span class="tok-number">9</span>, <span class="tok-number">0</span>, <span class="tok-number">5</span>, <span class="tok-number">7</span>, <span class="tok-number">2</span>, <span class="tok-number">4</span>, <span class="tok-number">10</span>, <span class="tok-number">15</span>, <span class="tok-number">14</span>, <span class="tok-number">1</span>, <span class="tok-number">11</span>, <span class="tok-number">12</span>, <span class="tok-number">6</span>, <span class="tok-number">8</span>, <span class="tok-number">3</span>, <span class="tok-number">13</span> },</span> <span class="line" id="L496"> [_]<span class="tok-type">u8</span>{ <span class="tok-number">2</span>, <span class="tok-number">12</span>, <span class="tok-number">6</span>, <span class="tok-number">10</span>, <span class="tok-number">0</span>, <span class="tok-number">11</span>, <span class="tok-number">8</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">13</span>, <span class="tok-number">7</span>, <span class="tok-number">5</span>, <span class="tok-number">15</span>, <span class="tok-number">14</span>, <span class="tok-number">1</span>, <span class="tok-number">9</span> },</span> <span class="line" id="L497"> [_]<span class="tok-type">u8</span>{ <span class="tok-number">12</span>, <span class="tok-number">5</span>, <span class="tok-number">1</span>, <span class="tok-number">15</span>, <span class="tok-number">14</span>, <span class="tok-number">13</span>, <span class="tok-number">4</span>, <span class="tok-number">10</span>, <span class="tok-number">0</span>, <span class="tok-number">7</span>, <span class="tok-number">6</span>, <span class="tok-number">3</span>, <span class="tok-number">9</span>, <span class="tok-number">2</span>, <span class="tok-number">8</span>, <span class="tok-number">11</span> },</span> <span class="line" id="L498"> [_]<span class="tok-type">u8</span>{ <span class="tok-number">13</span>, <span class="tok-number">11</span>, <span class="tok-number">7</span>, <span class="tok-number">14</span>, <span class="tok-number">12</span>, <span class="tok-number">1</span>, <span class="tok-number">3</span>, <span class="tok-number">9</span>, <span class="tok-number">5</span>, <span class="tok-number">0</span>, <span class="tok-number">15</span>, <span class="tok-number">4</span>, <span class="tok-number">8</span>, <span class="tok-number">6</span>, <span class="tok-number">2</span>, <span class="tok-number">10</span> },</span> <span class="line" id="L499"> [_]<span class="tok-type">u8</span>{ <span class="tok-number">6</span>, <span class="tok-number">15</span>, <span class="tok-number">14</span>, <span class="tok-number">9</span>, <span class="tok-number">11</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">8</span>, <span class="tok-number">12</span>, <span class="tok-number">2</span>, <span class="tok-number">13</span>, <span class="tok-number">7</span>, <span class="tok-number">1</span>, <span class="tok-number">4</span>, <span class="tok-number">10</span>, <span class="tok-number">5</span> },</span> <span class="line" id="L500"> [_]<span class="tok-type">u8</span>{ <span class="tok-number">10</span>, <span class="tok-number">2</span>, <span class="tok-number">8</span>, <span class="tok-number">4</span>, <span class="tok-number">7</span>, <span class="tok-number">6</span>, <span class="tok-number">1</span>, <span class="tok-number">5</span>, <span class="tok-number">15</span>, <span class="tok-number">11</span>, <span class="tok-number">9</span>, <span class="tok-number">14</span>, <span class="tok-number">3</span>, <span class="tok-number">12</span>, <span class="tok-number">13</span>, <span class="tok-number">0</span> },</span> <span class="line" id="L501"> [_]<span class="tok-type">u8</span>{ <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">8</span>, <span class="tok-number">9</span>, <span class="tok-number">10</span>, <span class="tok-number">11</span>, <span class="tok-number">12</span>, <span class="tok-number">13</span>, <span class="tok-number">14</span>, <span class="tok-number">15</span> },</span> <span class="line" id="L502"> [_]<span class="tok-type">u8</span>{ <span class="tok-number">14</span>, <span class="tok-number">10</span>, <span class="tok-number">4</span>, <span class="tok-number">8</span>, <span class="tok-number">9</span>, <span class="tok-number">15</span>, <span class="tok-number">13</span>, <span class="tok-number">6</span>, <span class="tok-number">1</span>, <span class="tok-number">12</span>, <span class="tok-number">0</span>, <span class="tok-number">2</span>, <span class="tok-number">11</span>, <span class="tok-number">7</span>, <span class="tok-number">5</span>, <span class="tok-number">3</span> },</span> <span class="line" id="L503"> };</span> <span class="line" id="L504"></span> <span class="line" id="L505"> h: [<span class="tok-number">8</span>]<span class="tok-type">u64</span>,</span> <span class="line" id="L506"> t: <span class="tok-type">u128</span>,</span> <span class="line" id="L507"> <span class="tok-comment">// Streaming cache</span> </span> <span class="line" id="L508"> buf: [<span class="tok-number">128</span>]<span class="tok-type">u8</span>,</span> <span class="line" id="L509"> buf_len: <span class="tok-type">u8</span>,</span> <span class="line" id="L510"></span> <span class="line" id="L511"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">init</span>(options: Options) Self {</span> <span class="line" id="L512"> <span class="tok-kw">comptime</span> debug.assert(<span class="tok-number">8</span> <= out_bits <span class="tok-kw">and</span> out_bits <= <span class="tok-number">512</span>);</span> <span class="line" id="L513"></span> <span class="line" id="L514"> <span class="tok-kw">var</span> d: Self = <span class="tok-null">undefined</span>;</span> <span class="line" id="L515"> d.h = iv;</span> <span class="line" id="L516"></span> <span class="line" id="L517"> <span class="tok-kw">const</span> key_len = <span class="tok-kw">if</span> (options.key) \|key\| key.len <span class="tok-kw">else</span> <span class="tok-number">0</span>;</span> <span class="line" id="L518"> <span class="tok-comment">// default parameters</span> </span> <span class="line" id="L519"> d.h[<span class="tok-number">0</span>] ^= <span class="tok-number">0x01010000</span> ^ (key_len << <span class="tok-number">8</span>) ^ (options.expected_out_bits >> <span class="tok-number">3</span>);</span> <span class="line" id="L520"> d.t = <span class="tok-number">0</span>;</span> <span class="line" id="L521"> d.buf_len = <span class="tok-number">0</span>;</span> <span class="line" id="L522"></span> <span class="line" id="L523"> <span class="tok-kw">if</span> (options.salt) \|salt\| {</span> <span class="line" id="L524"> d.h[<span class="tok-number">4</span>] ^= mem.readIntLittle(<span class="tok-type">u64</span>, salt[<span class="tok-number">0</span>..<span class="tok-number">8</span>]);</span> <span class="line" id="L525"> d.h[<span class="tok-number">5</span>] ^= mem.readIntLittle(<span class="tok-type">u64</span>, salt[<span class="tok-number">8</span>..<span class="tok-number">16</span>]);</span> <span class="line" id="L526"> }</span> <span class="line" id="L527"> <span class="tok-kw">if</span> (options.context) \|context\| {</span> <span class="line" id="L528"> d.h[<span class="tok-number">6</span>] ^= mem.readIntLittle(<span class="tok-type">u64</span>, context[<span class="tok-number">0</span>..<span class="tok-number">8</span>]);</span> <span class="line" id="L529"> d.h[<span class="tok-number">7</span>] ^= mem.readIntLittle(<span class="tok-type">u64</span>, context[<span class="tok-number">8</span>..<span class="tok-number">16</span>]);</span> <span class="line" id="L530"> }</span> <span class="line" id="L531"> <span class="tok-kw">if</span> (key_len > <span class="tok-number">0</span>) {</span> <span class="line" id="L532"> <span class="tok-builtin">@memset</span>(d.buf[key_len..], <span class="tok-number">0</span>);</span> <span class="line" id="L533"> d.update(options.key.?);</span> <span class="line" id="L534"> d.buf_len = <span class="tok-number">128</span>;</span> <span class="line" id="L535"> }</span> <span class="line" id="L536"> <span class="tok-kw">return</span> d;</span> <span class="line" id="L537"> }</span> <span class="line" id="L538"></span> <span class="line" id="L539"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">hash</span>(b: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, out: [digest_length]<span class="tok-type">u8</span>, options: Options) <span class="tok-type">void</span> {</span> <span class="line" id="L540"> <span class="tok-kw">var</span> d = Self.init(options);</span> <span class="line" id="L541"> d.update(b);</span> <span class="line" id="L542"> d.final(out);</span> <span class="line" id="L543"> }</span> <span class="line" id="L544"></span> <span class="line" id="L545"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">update</span>(d: Self, b: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L546"> <span class="tok-kw">var</span> off: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L547"></span> <span class="line" id="L548"> <span class="tok-comment">// Partial buffer exists from previous update. Copy into buffer then hash.</span> </span> <span class="line" id="L549"> <span class="tok-kw">if</span> (d.buf_len != <span class="tok-number">0</span> <span class="tok-kw">and</span> d.buf_len + b.len > <span class="tok-number">128</span>) {</span> <span class="line" id="L550"> off += <span class="tok-number">128</span> - d.buf_len;</span> <span class="line" id="L551"> <span class="tok-builtin">@memcpy</span>(d.buf[d.buf_len..][<span class="tok-number">0</span>..off], b[<span class="tok-number">0</span>..off]);</span> <span class="line" id="L552"> d.t += <span class="tok-number">128</span>;</span> <span class="line" id="L553"> d.round(d.buf[<span class="tok-number">0</span>..], <span class="tok-null">false</span>);</span> <span class="line" id="L554"> d.buf_len = <span class="tok-number">0</span>;</span> <span class="line" id="L555"> }</span> <span class="line" id="L556"></span> <span class="line" id="L557"> <span class="tok-comment">// Full middle blocks.</span> </span> <span class="line" id="L558"> <span class="tok-kw">while</span> (off + <span class="tok-number">128</span> < b.len) : (off += <span class="tok-number">128</span>) {</span> <span class="line" id="L559"> d.t += <span class="tok-number">128</span>;</span> <span class="line" id="L560"> d.round(b[off..][<span class="tok-number">0</span>..<span class="tok-number">128</span>], <span class="tok-null">false</span>);</span> <span class="line" id="L561"> }</span> <span class="line" id="L562"></span> <span class="line" id="L563"> <span class="tok-comment">// Copy any remainder for next pass.</span> </span> <span class="line" id="L564"> <span class="tok-kw">const</span> b_slice = b[off..];</span> <span class="line" id="L565"> <span class="tok-builtin">@memcpy</span>(d.buf[d.buf_len..][<span class="tok-number">0</span>..b_slice.len], b_slice);</span> <span class="line" id="L566"> d.buf_len += <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>(b_slice.len));</span> <span class="line" id="L567"> }</span> <span class="line" id="L568"></span> <span class="line" id="L569"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">final</span>(d: Self, out: [digest_length]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L570"> <span class="tok-builtin">@memset</span>(d.buf[d.buf_len..], <span class="tok-number">0</span>);</span> <span class="line" id="L571"> d.t += d.buf_len;</span> <span class="line" id="L572"> d.round(d.buf[<span class="tok-number">0</span>..], <span class="tok-null">true</span>);</span> <span class="line" id="L573"> <span class="tok-kw">for</span> (&d.h) \|x\| x. = mem.nativeToLittle(<span class="tok-type">u64</span>, x.);</span> <span class="line" id="L574"> out. = <span class="tok-builtin">@as</span>([digest_length]<span class="tok-type">u8</span>, <span class="tok-builtin">@ptrCast</span>(&d.h)).;</span> <span class="line" id="L575"> }</span> <span class="line" id="L576"></span> <span class="line" id="L577"> <span class="tok-kw">fn</span> <span class="tok-fn">round</span>(d: Self, b: <span class="tok-kw">const</span> [<span class="tok-number">128</span>]<span class="tok-type">u8</span>, last: <span class="tok-type">bool</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L578"> <span class="tok-kw">var</span> m: [<span class="tok-number">16</span>]<span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L579"> <span class="tok-kw">var</span> v: [<span class="tok-number">16</span>]<span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L580"></span> <span class="line" id="L581"> <span class="tok-kw">for</span> (&m, <span class="tok-number">0</span>..) \|r, i\| {</span> <span class="line" id="L582"> r. = mem.readIntLittle(<span class="tok-type">u64</span>, b[<span class="tok-number">8</span> * i ..][<span class="tok-number">0</span>..<span class="tok-number">8</span>]);</span> <span class="line" id="L583"> }</span> <span class="line" id="L584"></span> <span class="line" id="L585"> <span class="tok-kw">var</span> k: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L586"> <span class="tok-kw">while</span> (k < <span class="tok-number">8</span>) : (k += <span class="tok-number">1</span>) {</span> <span class="line" id="L587"> v[k] = d.h[k];</span> <span class="line" id="L588"> v[k + <span class="tok-number">8</span>] = iv[k];</span> <span class="line" id="L589"> }</span> <span class="line" id="L590"></span> <span class="line" id="L591"> v[<span class="tok-number">12</span>] ^= <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(d.t));</span> <span class="line" id="L592"> v[<span class="tok-number">13</span>] ^= <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@intCast</span>(d.t >> <span class="tok-number">64</span>));</span> <span class="line" id="L593"> <span class="tok-kw">if</span> (last) v[<span class="tok-number">14</span>] = ~v[<span class="tok-number">14</span>];</span> <span class="line" id="L594"></span> <span class="line" id="L595"> <span class="tok-kw">const</span> rounds = <span class="tok-kw">comptime</span> [_]RoundParam{</span> <span class="line" id="L596"> roundParam(<span class="tok-number">0</span>, <span class="tok-number">4</span>, <span class="tok-number">8</span>, <span class="tok-number">12</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>),</span> <span class="line" id="L597"> roundParam(<span class="tok-number">1</span>, <span class="tok-number">5</span>, <span class="tok-number">9</span>, <span class="tok-number">13</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>),</span> <span class="line" id="L598"> roundParam(<span class="tok-number">2</span>, <span class="tok-number">6</span>, <span class="tok-number">10</span>, <span class="tok-number">14</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>),</span> <span class="line" id="L599"> roundParam(<span class="tok-number">3</span>, <span class="tok-number">7</span>, <span class="tok-number">11</span>, <span class="tok-number">15</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>),</span> <span class="line" id="L600"> roundParam(<span class="tok-number">0</span>, <span class="tok-number">5</span>, <span class="tok-number">10</span>, <span class="tok-number">15</span>, <span class="tok-number">8</span>, <span class="tok-number">9</span>),</span> <span class="line" id="L601"> roundParam(<span class="tok-number">1</span>, <span class="tok-number">6</span>, <span class="tok-number">11</span>, <span class="tok-number">12</span>, <span class="tok-number">10</span>, <span class="tok-number">11</span>),</span> <span class="line" id="L602"> roundParam(<span class="tok-number">2</span>, <span class="tok-number">7</span>, <span class="tok-number">8</span>, <span class="tok-number">13</span>, <span class="tok-number">12</span>, <span class="tok-number">13</span>),</span> <span class="line" id="L603"> roundParam(<span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">9</span>, <span class="tok-number">14</span>, <span class="tok-number">14</span>, <span class="tok-number">15</span>),</span> <span class="line" id="L604"> };</span> <span class="line" id="L605"></span> <span class="line" id="L606"> <span class="tok-kw">comptime</span> <span class="tok-kw">var</span> j: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L607"> <span class="tok-kw">inline</span> <span class="tok-kw">while</span> (j < <span class="tok-number">12</span>) : (j += <span class="tok-number">1</span>) {</span> <span class="line" id="L608"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (rounds) \|r\| {</span> <span class="line" id="L609"> v[r.a] = v[r.a] +% v[r.b] +% m[sigma[j][r.x]];</span> <span class="line" id="L610"> v[r.d] = math.rotr(<span class="tok-type">u64</span>, v[r.d] ^ v[r.a], <span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-number">32</span>));</span> <span class="line" id="L611"> v[r.c] = v[r.c] +% v[r.d];</span> <span class="line" id="L612"> v[r.b] = math.rotr(<span class="tok-type">u64</span>, v[r.b] ^ v[r.c], <span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-number">24</span>));</span> <span class="line" id="L613"> v[r.a] = v[r.a] +% v[r.b] +% m[sigma[j][r.y]];</span> <span class="line" id="L614"> v[r.d] = math.rotr(<span class="tok-type">u64</span>, v[r.d] ^ v[r.a], <span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-number">16</span>));</span> <span class="line" id="L615"> v[r.c] = v[r.c] +% v[r.d];</span> <span class="line" id="L616"> v[r.b] = math.rotr(<span class="tok-type">u64</span>, v[r.b] ^ v[r.c], <span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-number">63</span>));</span> <span class="line" id="L617"> }</span> <span class="line" id="L618"> }</span> <span class="line" id="L619"></span> <span class="line" id="L620"> <span class="tok-kw">for</span> (&d.h, <span class="tok-number">0</span>..) \|r, i\| {</span> <span class="line" id="L621"> r. ^= v[i] ^ v[i + <span class="tok-number">8</span>];</span> <span class="line" id="L622"> }</span> <span class="line" id="L623"> }</span> <span class="line" id="L624"> };</span> <span class="line" id="L625">}</span> <span class="line" id="L626"></span> <span class="line" id="L627"><span class="tok-kw">test</span> <span class="tok-str">"blake2b160 single"</span> {</span> <span class="line" id="L628"> <span class="tok-kw">const</span> h1 = <span class="tok-str">"3345524abf6bbe1809449224b5972c41790b6cf2"</span>;</span> <span class="line" id="L629"> <span class="tok-kw">try</span> htest.assertEqualHash(Blake2b160, h1, <span class="tok-str">""</span>);</span> <span class="line" id="L630"></span> <span class="line" id="L631"> <span class="tok-kw">const</span> h2 = <span class="tok-str">"384264f676f39536840523f284921cdc68b6846b"</span>;</span> <span class="line" id="L632"> <span class="tok-kw">try</span> htest.assertEqualHash(Blake2b160, h2, <span class="tok-str">"abc"</span>);</span> <span class="line" id="L633"></span> <span class="line" id="L634"> <span class="tok-kw">const</span> h3 = <span class="tok-str">"3c523ed102ab45a37d54f5610d5a983162fde84f"</span>;</span> <span class="line" id="L635"> <span class="tok-kw">try</span> htest.assertEqualHash(Blake2b160, h3, <span class="tok-str">"The quick brown fox jumps over the lazy dog"</span>);</span> <span class="line" id="L636"></span> <span class="line" id="L637"> <span class="tok-kw">const</span> h4 = <span class="tok-str">"43758f5de1740f651f1ae39de92260fe8bd5a11f"</span>;</span> <span class="line" id="L638"> <span class="tok-kw">try</span> htest.assertEqualHash(Blake2b160, h4, <span class="tok-str">"a"</span> <span class="tok-number">64</span> ++ <span class="tok-str">"b"</span> <span class="tok-number">64</span>);</span> <span class="line" id="L639">}</span> <span class="line" id="L640"></span> <span class="line" id="L641"><span class="tok-kw">test</span> <span class="tok-str">"blake2b160 streaming"</span> {</span> <span class="line" id="L642"> <span class="tok-kw">var</span> h = Blake2b160.init(.{});</span> <span class="line" id="L643"> <span class="tok-kw">var</span> out: [<span class="tok-number">20</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L644"></span> <span class="line" id="L645"> <span class="tok-kw">const</span> h1 = <span class="tok-str">"3345524abf6bbe1809449224b5972c41790b6cf2"</span>;</span> <span class="line" id="L646"></span> <span class="line" id="L647"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L648"> <span class="tok-kw">try</span> htest.assertEqual(h1, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L649"></span> <span class="line" id="L650"> <span class="tok-kw">const</span> h2 = <span class="tok-str">"384264f676f39536840523f284921cdc68b6846b"</span>;</span> <span class="line" id="L651"></span> <span class="line" id="L652"> h = Blake2b160.init(.{});</span> <span class="line" id="L653"> h.update(<span class="tok-str">"abc"</span>);</span> <span class="line" id="L654"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L655"> <span class="tok-kw">try</span> htest.assertEqual(h2, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L656"></span> <span class="line" id="L657"> h = Blake2b160.init(.{});</span> <span class="line" id="L658"> h.update(<span class="tok-str">"a"</span>);</span> <span class="line" id="L659"> h.update(<span class="tok-str">"b"</span>);</span> <span class="line" id="L660"> h.update(<span class="tok-str">"c"</span>);</span> <span class="line" id="L661"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L662"> <span class="tok-kw">try</span> htest.assertEqual(h2, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L663"></span> <span class="line" id="L664"> <span class="tok-kw">const</span> h3 = <span class="tok-str">"43758f5de1740f651f1ae39de92260fe8bd5a11f"</span>;</span> <span class="line" id="L665"></span> <span class="line" id="L666"> h = Blake2b160.init(.{});</span> <span class="line" id="L667"> h.update(<span class="tok-str">"a"</span> <span class="tok-number">64</span> ++ <span class="tok-str">"b"</span> <span class="tok-number">64</span>);</span> <span class="line" id="L668"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L669"> <span class="tok-kw">try</span> htest.assertEqual(h3, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L670"></span> <span class="line" id="L671"> h = Blake2b160.init(.{});</span> <span class="line" id="L672"> h.update(<span class="tok-str">"a"</span> <span class="tok-number">64</span>);</span> <span class="line" id="L673"> h.update(<span class="tok-str">"b"</span> <span class="tok-number">64</span>);</span> <span class="line" id="L674"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L675"> <span class="tok-kw">try</span> htest.assertEqual(h3, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L676"></span> <span class="line" id="L677"> h = Blake2b160.init(.{});</span> <span class="line" id="L678"> h.update(<span class="tok-str">"a"</span> <span class="tok-number">64</span>);</span> <span class="line" id="L679"> h.update(<span class="tok-str">"b"</span> <span class="tok-number">64</span>);</span> <span class="line" id="L680"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L681"> <span class="tok-kw">try</span> htest.assertEqual(h3, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L682"></span> <span class="line" id="L683"> <span class="tok-kw">const</span> h4 = <span class="tok-str">"72328f8a8200663752fc302d372b5dd9b49dd8dc"</span>;</span> <span class="line" id="L684"></span> <span class="line" id="L685"> h = Blake2b160.init(.{ .context = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x69</span>} <span class="tok-number">16</span>, .salt = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x42</span>} <span class="tok-number">16</span> });</span> <span class="line" id="L686"> h.update(<span class="tok-str">"a"</span> <span class="tok-number">64</span>);</span> <span class="line" id="L687"> h.update(<span class="tok-str">"b"</span> <span class="tok-number">64</span>);</span> <span class="line" id="L688"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L689"> <span class="tok-kw">try</span> htest.assertEqual(h4, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L690"></span> <span class="line" id="L691"> h = Blake2b160.init(.{ .context = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x69</span>} <span class="tok-number">16</span>, .salt = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x42</span>} <span class="tok-number">16</span> });</span> <span class="line" id="L692"> h.update(<span class="tok-str">"a"</span> <span class="tok-number">64</span>);</span> <span class="line" id="L693"> h.update(<span class="tok-str">"b"</span> <span class="tok-number">64</span>);</span> <span class="line" id="L694"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L695"> <span class="tok-kw">try</span> htest.assertEqual(h4, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L696">}</span> <span class="line" id="L697"></span> <span class="line" id="L698"><span class="tok-kw">test</span> <span class="tok-str">"comptime blake2b160"</span> {</span> <span class="line" id="L699"> <span class="tok-kw">comptime</span> {</span> <span class="line" id="L700"> <span class="tok-builtin">@setEvalBranchQuota</span>(<span class="tok-number">10000</span>);</span> <span class="line" id="L701"> <span class="tok-kw">var</span> block = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} Blake2b160.block_length;</span> <span class="line" id="L702"> <span class="tok-kw">var</span> out: [Blake2b160.digest_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L703"></span> <span class="line" id="L704"> <span class="tok-kw">const</span> h1 = <span class="tok-str">"8d26f158f564e3293b42f5e3d34263cb173aa9c9"</span>;</span> <span class="line" id="L705"></span> <span class="line" id="L706"> <span class="tok-kw">try</span> htest.assertEqualHash(Blake2b160, h1, block[<span class="tok-number">0</span>..]);</span> <span class="line" id="L707"></span> <span class="line" id="L708"> <span class="tok-kw">var</span> h = Blake2b160.init(.{});</span> <span class="line" id="L709"> h.update(&block);</span> <span class="line" id="L710"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L711"></span> <span class="line" id="L712"> <span class="tok-kw">try</span> htest.assertEqual(h1, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L713"> }</span> <span class="line" id="L714">}</span> <span class="line" id="L715"></span> <span class="line" id="L716"><span class="tok-kw">test</span> <span class="tok-str">"blake2b384 single"</span> {</span> <span class="line" id="L717"> <span class="tok-kw">const</span> h1 = <span class="tok-str">"b32811423377f52d7862286ee1a72ee540524380fda1724a6f25d7978c6fd3244a6caf0498812673c5e05ef583825100"</span>;</span> <span class="line" id="L718"> <span class="tok-kw">try</span> htest.assertEqualHash(Blake2b384, h1, <span class="tok-str">""</span>);</span> <span class="line" id="L719"></span> <span class="line" id="L720"> <span class="tok-kw">const</span> h2 = <span class="tok-str">"6f56a82c8e7ef526dfe182eb5212f7db9df1317e57815dbda46083fc30f54ee6c66ba83be64b302d7cba6ce15bb556f4"</span>;</span> <span class="line" id="L721"> <span class="tok-kw">try</span> htest.assertEqualHash(Blake2b384, h2, <span class="tok-str">"abc"</span>);</span> <span class="line" id="L722"></span> <span class="line" id="L723"> <span class="tok-kw">const</span> h3 = <span class="tok-str">"b7c81b228b6bd912930e8f0b5387989691c1cee1e65aade4da3b86a3c9f678fc8018f6ed9e2906720c8d2a3aeda9c03d"</span>;</span> <span class="line" id="L724"> <span class="tok-kw">try</span> htest.assertEqualHash(Blake2b384, h3, <span class="tok-str">"The quick brown fox jumps over the lazy dog"</span>);</span> <span class="line" id="L725"></span> <span class="line" id="L726"> <span class="tok-kw">const</span> h4 = <span class="tok-str">"b7283f0172fecbbd7eca32ce10d8a6c06b453cb3cf675b33eb4246f0da2bb94a6c0bdd6eec0b5fd71ec4fd51be80bf4c"</span>;</span> <span class="line" id="L727"> <span class="tok-kw">try</span> htest.assertEqualHash(Blake2b384, h4, <span class="tok-str">"a"</span> <span class="tok-number">64</span> ++ <span class="tok-str">"b"</span> <span class="tok-number">64</span>);</span> <span class="line" id="L728">}</span> <span class="line" id="L729"></span> <span class="line" id="L730"><span class="tok-kw">test</span> <span class="tok-str">"blake2b384 streaming"</span> {</span> <span class="line" id="L731"> <span class="tok-kw">var</span> h = Blake2b384.init(.{});</span> <span class="line" id="L732"> <span class="tok-kw">var</span> out: [<span class="tok-number">48</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L733"></span> <span class="line" id="L734"> <span class="tok-kw">const</span> h1 = <span class="tok-str">"b32811423377f52d7862286ee1a72ee540524380fda1724a6f25d7978c6fd3244a6caf0498812673c5e05ef583825100"</span>;</span> <span class="line" id="L735"></span> <span class="line" id="L736"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L737"> <span class="tok-kw">try</span> htest.assertEqual(h1, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L738"></span> <span class="line" id="L739"> <span class="tok-kw">const</span> h2 = <span class="tok-str">"6f56a82c8e7ef526dfe182eb5212f7db9df1317e57815dbda46083fc30f54ee6c66ba83be64b302d7cba6ce15bb556f4"</span>;</span> <span class="line" id="L740"></span> <span class="line" id="L741"> h = Blake2b384.init(.{});</span> <span class="line" id="L742"> h.update(<span class="tok-str">"abc"</span>);</span> <span class="line" id="L743"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L744"> <span class="tok-kw">try</span> htest.assertEqual(h2, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L745"></span> <span class="line" id="L746"> h = Blake2b384.init(.{});</span> <span class="line" id="L747"> h.update(<span class="tok-str">"a"</span>);</span> <span class="line" id="L748"> h.update(<span class="tok-str">"b"</span>);</span> <span class="line" id="L749"> h.update(<span class="tok-str">"c"</span>);</span> <span class="line" id="L750"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L751"> <span class="tok-kw">try</span> htest.assertEqual(h2, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L752"></span> <span class="line" id="L753"> <span class="tok-kw">const</span> h3 = <span class="tok-str">"b7283f0172fecbbd7eca32ce10d8a6c06b453cb3cf675b33eb4246f0da2bb94a6c0bdd6eec0b5fd71ec4fd51be80bf4c"</span>;</span> <span class="line" id="L754"></span> <span class="line" id="L755"> h = Blake2b384.init(.{});</span> <span class="line" id="L756"> h.update(<span class="tok-str">"a"</span> <span class="tok-number">64</span> ++ <span class="tok-str">"b"</span> <span class="tok-number">64</span>);</span> <span class="line" id="L757"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L758"> <span class="tok-kw">try</span> htest.assertEqual(h3, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L759"></span> <span class="line" id="L760"> h = Blake2b384.init(.{});</span> <span class="line" id="L761"> h.update(<span class="tok-str">"a"</span> <span class="tok-number">64</span>);</span> <span class="line" id="L762"> h.update(<span class="tok-str">"b"</span> <span class="tok-number">64</span>);</span> <span class="line" id="L763"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L764"> <span class="tok-kw">try</span> htest.assertEqual(h3, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L765"></span> <span class="line" id="L766"> h = Blake2b384.init(.{});</span> <span class="line" id="L767"> h.update(<span class="tok-str">"a"</span> <span class="tok-number">64</span>);</span> <span class="line" id="L768"> h.update(<span class="tok-str">"b"</span> <span class="tok-number">64</span>);</span> <span class="line" id="L769"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L770"> <span class="tok-kw">try</span> htest.assertEqual(h3, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L771"></span> <span class="line" id="L772"> <span class="tok-kw">const</span> h4 = <span class="tok-str">"934c48fcb197031c71f583d92f98703510805e72142e0b46f5752d1e971bc86c355d556035613ff7a4154b4de09dac5c"</span>;</span> <span class="line" id="L773"></span> <span class="line" id="L774"> h = Blake2b384.init(.{ .context = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x69</span>} <span class="tok-number">16</span>, .salt = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x42</span>} <span class="tok-number">16</span> });</span> <span class="line" id="L775"> h.update(<span class="tok-str">"a"</span> <span class="tok-number">64</span>);</span> <span class="line" id="L776"> h.update(<span class="tok-str">"b"</span> <span class="tok-number">64</span>);</span> <span class="line" id="L777"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L778"> <span class="tok-kw">try</span> htest.assertEqual(h4, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L779"></span> <span class="line" id="L780"> h = Blake2b384.init(.{ .context = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x69</span>} <span class="tok-number">16</span>, .salt = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x42</span>} <span class="tok-number">16</span> });</span> <span class="line" id="L781"> h.update(<span class="tok-str">"a"</span> <span class="tok-number">64</span>);</span> <span class="line" id="L782"> h.update(<span class="tok-str">"b"</span> <span class="tok-number">64</span>);</span> <span class="line" id="L783"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L784"> <span class="tok-kw">try</span> htest.assertEqual(h4, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L785">}</span> <span class="line" id="L786"></span> <span class="line" id="L787"><span class="tok-kw">test</span> <span class="tok-str">"comptime blake2b384"</span> {</span> <span class="line" id="L788"> <span class="tok-kw">comptime</span> {</span> <span class="line" id="L789"> <span class="tok-builtin">@setEvalBranchQuota</span>(<span class="tok-number">10000</span>);</span> <span class="line" id="L790"> <span class="tok-kw">var</span> block = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} Blake2b384.block_length;</span> <span class="line" id="L791"> <span class="tok-kw">var</span> out: [Blake2b384.digest_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L792"></span> <span class="line" id="L793"> <span class="tok-kw">const</span> h1 = <span class="tok-str">"e8aa1931ea0422e4446fecdd25c16cf35c240b10cb4659dd5c776eddcaa4d922397a589404b46eb2e53d78132d05fd7d"</span>;</span> <span class="line" id="L794"></span> <span class="line" id="L795"> <span class="tok-kw">try</span> htest.assertEqualHash(Blake2b384, h1, block[<span class="tok-number">0</span>..]);</span> <span class="line" id="L796"></span> <span class="line" id="L797"> <span class="tok-kw">var</span> h = Blake2b384.init(.{});</span> <span class="line" id="L798"> h.update(&block);</span> <span class="line" id="L799"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L800"></span> <span class="line" id="L801"> <span class="tok-kw">try</span> htest.assertEqual(h1, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L802"> }</span> <span class="line" id="L803">}</span> <span class="line" id="L804"></span> <span class="line" id="L805"><span class="tok-kw">test</span> <span class="tok-str">"blake2b512 single"</span> {</span> <span class="line" id="L806"> <span class="tok-kw">const</span> h1 = <span class="tok-str">"786a02f742015903c6c6fd852552d272912f4740e15847618a86e217f71f5419d25e1031afee585313896444934eb04b903a685b1448b755d56f701afe9be2ce"</span>;</span> <span class="line" id="L807"> <span class="tok-kw">try</span> htest.assertEqualHash(Blake2b512, h1, <span class="tok-str">""</span>);</span> <span class="line" id="L808"></span> <span class="line" id="L809"> <span class="tok-kw">const</span> h2 = <span class="tok-str">"ba80a53f981c4d0d6a2797b69f12f6e94c212f14685ac4b74b12bb6fdbffa2d17d87c5392aab792dc252d5de4533cc9518d38aa8dbf1925ab92386edd4009923"</span>;</span> <span class="line" id="L810"> <span class="tok-kw">try</span> htest.assertEqualHash(Blake2b512, h2, <span class="tok-str">"abc"</span>);</span> <span class="line" id="L811"></span> <span class="line" id="L812"> <span class="tok-kw">const</span> h3 = <span class="tok-str">"a8add4bdddfd93e4877d2746e62817b116364a1fa7bc148d95090bc7333b3673f82401cf7aa2e4cb1ecd90296e3f14cb5413f8ed77be73045b13914cdcd6a918"</span>;</span> <span class="line" id="L813"> <span class="tok-kw">try</span> htest.assertEqualHash(Blake2b512, h3, <span class="tok-str">"The quick brown fox jumps over the lazy dog"</span>);</span> <span class="line" id="L814"></span> <span class="line" id="L815"> <span class="tok-kw">const</span> h4 = <span class="tok-str">"049980af04d6a2cf16b4b49793c3ed7e40732073788806f2c989ebe9547bda0541d63abe298ec8955d08af48ae731f2e8a0bd6d201655a5473b4aa79d211b920"</span>;</span> <span class="line" id="L816"> <span class="tok-kw">try</span> htest.assertEqualHash(Blake2b512, h4, <span class="tok-str">"a"</span> <span class="tok-number">64</span> ++ <span class="tok-str">"b"</span> <span class="tok-number">64</span>);</span> <span class="line" id="L817">}</span> <span class="line" id="L818"></span> <span class="line" id="L819"><span class="tok-kw">test</span> <span class="tok-str">"blake2b512 streaming"</span> {</span> <span class="line" id="L820"> <span class="tok-kw">var</span> h = Blake2b512.init(.{});</span> <span class="line" id="L821"> <span class="tok-kw">var</span> out: [<span class="tok-number">64</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L822"></span> <span class="line" id="L823"> <span class="tok-kw">const</span> h1 = <span class="tok-str">"786a02f742015903c6c6fd852552d272912f4740e15847618a86e217f71f5419d25e1031afee585313896444934eb04b903a685b1448b755d56f701afe9be2ce"</span>;</span> <span class="line" id="L824"></span> <span class="line" id="L825"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L826"> <span class="tok-kw">try</span> htest.assertEqual(h1, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L827"></span> <span class="line" id="L828"> <span class="tok-kw">const</span> h2 = <span class="tok-str">"ba80a53f981c4d0d6a2797b69f12f6e94c212f14685ac4b74b12bb6fdbffa2d17d87c5392aab792dc252d5de4533cc9518d38aa8dbf1925ab92386edd4009923"</span>;</span> <span class="line" id="L829"></span> <span class="line" id="L830"> h = Blake2b512.init(.{});</span> <span class="line" id="L831"> h.update(<span class="tok-str">"abc"</span>);</span> <span class="line" id="L832"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L833"> <span class="tok-kw">try</span> htest.assertEqual(h2, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L834"></span> <span class="line" id="L835"> h = Blake2b512.init(.{});</span> <span class="line" id="L836"> h.update(<span class="tok-str">"a"</span>);</span> <span class="line" id="L837"> h.update(<span class="tok-str">"b"</span>);</span> <span class="line" id="L838"> h.update(<span class="tok-str">"c"</span>);</span> <span class="line" id="L839"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L840"> <span class="tok-kw">try</span> htest.assertEqual(h2, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L841"></span> <span class="line" id="L842"> <span class="tok-kw">const</span> h3 = <span class="tok-str">"049980af04d6a2cf16b4b49793c3ed7e40732073788806f2c989ebe9547bda0541d63abe298ec8955d08af48ae731f2e8a0bd6d201655a5473b4aa79d211b920"</span>;</span> <span class="line" id="L843"></span> <span class="line" id="L844"> h = Blake2b512.init(.{});</span> <span class="line" id="L845"> h.update(<span class="tok-str">"a"</span> <span class="tok-number">64</span> ++ <span class="tok-str">"b"</span> <span class="tok-number">64</span>);</span> <span class="line" id="L846"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L847"> <span class="tok-kw">try</span> htest.assertEqual(h3, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L848"></span> <span class="line" id="L849"> h = Blake2b512.init(.{});</span> <span class="line" id="L850"> h.update(<span class="tok-str">"a"</span> <span class="tok-number">64</span>);</span> <span class="line" id="L851"> h.update(<span class="tok-str">"b"</span> <span class="tok-number">64</span>);</span> <span class="line" id="L852"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L853"> <span class="tok-kw">try</span> htest.assertEqual(h3, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L854">}</span> <span class="line" id="L855"></span> <span class="line" id="L856"><span class="tok-kw">test</span> <span class="tok-str">"blake2b512 keyed"</span> {</span> <span class="line" id="L857"> <span class="tok-kw">var</span> out: [<span class="tok-number">64</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L858"></span> <span class="line" id="L859"> <span class="tok-kw">const</span> h1 = <span class="tok-str">"8a978060ccaf582f388f37454363071ac9a67e3a704585fd879fb8a419a447e389c7c6de790faa20a7a7dccf197de736bc5b40b98a930b36df5bee7555750c4d"</span>;</span> <span class="line" id="L860"> <span class="tok-kw">const</span> key = <span class="tok-str">"secret_key"</span>;</span> <span class="line" id="L861"></span> <span class="line" id="L862"> Blake2b512.hash(<span class="tok-str">"a"</span> <span class="tok-number">64</span> ++ <span class="tok-str">"b"</span> <span class="tok-number">64</span>, &out, .{ .key = key });</span> <span class="line" id="L863"> <span class="tok-kw">try</span> htest.assertEqual(h1, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L864"></span> <span class="line" id="L865"> <span class="tok-kw">var</span> h = Blake2b512.init(.{ .key = key });</span> <span class="line" id="L866"> h.update(<span class="tok-str">"a"</span> <span class="tok-number">64</span> ++ <span class="tok-str">"b"</span> <span class="tok-number">64</span>);</span> <span class="line" id="L867"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L868"></span> <span class="line" id="L869"> <span class="tok-kw">try</span> htest.assertEqual(h1, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L870"></span> <span class="line" id="L871"> h = Blake2b512.init(.{ .key = key });</span> <span class="line" id="L872"> h.update(<span class="tok-str">"a"</span> <span class="tok-number">64</span>);</span> <span class="line" id="L873"> h.update(<span class="tok-str">"b"</span> <span class="tok-number">64</span>);</span> <span class="line" id="L874"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L875"></span> <span class="line" id="L876"> <span class="tok-kw">try</span> htest.assertEqual(h1, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L877">}</span> <span class="line" id="L878"></span> <span class="line" id="L879"><span class="tok-kw">test</span> <span class="tok-str">"comptime blake2b512"</span> {</span> <span class="line" id="L880"> <span class="tok-kw">comptime</span> {</span> <span class="line" id="L881"> <span class="tok-builtin">@setEvalBranchQuota</span>(<span class="tok-number">10000</span>);</span> <span class="line" id="L882"> <span class="tok-kw">var</span> block = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} ** Blake2b512.block_length;</span> <span class="line" id="L883"> <span class="tok-kw">var</span> out: [Blake2b512.digest_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L884"></span> <span class="line" id="L885"> <span class="tok-kw">const</span> h1 = <span class="tok-str">"865939e120e6805438478841afb739ae4250cf372653078a065cdcfffca4caf798e6d462b65d658fc165782640eded70963449ae1500fb0f24981d7727e22c41"</span>;</span> <span class="line" id="L886"></span> <span class="line" id="L887"> <span class="tok-kw">try</span> htest.assertEqualHash(Blake2b512, h1, block[<span class="tok-number">0</span>..]);</span> <span class="line" id="L888"></span> <span class="line" id="L889"> <span class="tok-kw">var</span> h = Blake2b512.init(.{});</span> <span class="line" id="L890"> h.update(&block);</span> <span class="line" id="L891"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L892"></span> <span class="line" id="L893"> <span class="tok-kw">try</span> htest.assertEqual(h1, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L894"> }</span> <span class="line" id="L895">}</span> <span class="line" id="L896"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/crypto/chacha20.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/chacha20.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-comment">// Based on public domain Supercop by Daniel J. Bernstein</span> </span> <span class="line" id="L2"></span> <span class="line" id="L3"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"../std.zig"</span>);</span> <span class="line" id="L4"><span class="tok-kw">const</span> builtin = <span class="tok-builtin">@import</span>(<span class="tok-str">"builtin"</span>);</span> <span class="line" id="L5"><span class="tok-kw">const</span> math = std.math;</span> <span class="line" id="L6"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L7"><span class="tok-kw">const</span> assert = std.debug.assert;</span> <span class="line" id="L8"><span class="tok-kw">const</span> testing = std.testing;</span> <span class="line" id="L9"><span class="tok-kw">const</span> maxInt = math.maxInt;</span> <span class="line" id="L10"><span class="tok-kw">const</span> Poly1305 = std.crypto.onetimeauth.Poly1305;</span> <span class="line" id="L11"><span class="tok-kw">const</span> AuthenticationError = std.crypto.errors.AuthenticationError;</span> <span class="line" id="L12"></span> <span class="line" id="L13"><span class="tok-comment">/// IETF-variant of the ChaCha20 stream cipher, as designed for TLS.</span></span> <span class="line" id="L14"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> ChaCha20IETF = ChaChaIETF(<span class="tok-number">20</span>);</span> <span class="line" id="L15"></span> <span class="line" id="L16"><span class="tok-comment">/// IETF-variant of the ChaCha20 stream cipher, reduced to 12 rounds.</span></span> <span class="line" id="L17"><span class="tok-comment">/// Reduced-rounds versions are faster than the full-round version, but have a lower security margin.</span></span> <span class="line" id="L18"><span class="tok-comment">/// However, ChaCha is still believed to have a comfortable security even with only 8 rounds.</span></span> <span class="line" id="L19"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> ChaCha12IETF = ChaChaIETF(<span class="tok-number">12</span>);</span> <span class="line" id="L20"></span> <span class="line" id="L21"><span class="tok-comment">/// IETF-variant of the ChaCha20 stream cipher, reduced to 8 rounds.</span></span> <span class="line" id="L22"><span class="tok-comment">/// Reduced-rounds versions are faster than the full-round version, but have a lower security margin.</span></span> <span class="line" id="L23"><span class="tok-comment">/// However, ChaCha is still believed to have a comfortable security even with only 8 rounds.</span></span> <span class="line" id="L24"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> ChaCha8IETF = ChaChaIETF(<span class="tok-number">8</span>);</span> <span class="line" id="L25"></span> <span class="line" id="L26"><span class="tok-comment">/// Original ChaCha20 stream cipher.</span></span> <span class="line" id="L27"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> ChaCha20With64BitNonce = ChaChaWith64BitNonce(<span class="tok-number">20</span>);</span> <span class="line" id="L28"></span> <span class="line" id="L29"><span class="tok-comment">/// Original ChaCha20 stream cipher, reduced to 12 rounds.</span></span> <span class="line" id="L30"><span class="tok-comment">/// Reduced-rounds versions are faster than the full-round version, but have a lower security margin.</span></span> <span class="line" id="L31"><span class="tok-comment">/// However, ChaCha is still believed to have a comfortable security even with only 8 rounds.</span></span> <span class="line" id="L32"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> ChaCha12With64BitNonce = ChaChaWith64BitNonce(<span class="tok-number">12</span>);</span> <span class="line" id="L33"></span> <span class="line" id="L34"><span class="tok-comment">/// Original ChaCha20 stream cipher, reduced to 8 rounds.</span></span> <span class="line" id="L35"><span class="tok-comment">/// Reduced-rounds versions are faster than the full-round version, but have a lower security margin.</span></span> <span class="line" id="L36"><span class="tok-comment">/// However, ChaCha is still believed to have a comfortable security even with only 8 rounds.</span></span> <span class="line" id="L37"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> ChaCha8With64BitNonce = ChaChaWith64BitNonce(<span class="tok-number">8</span>);</span> <span class="line" id="L38"></span> <span class="line" id="L39"><span class="tok-comment">/// XChaCha20 (nonce-extended version of the IETF ChaCha20 variant) stream cipher</span></span> <span class="line" id="L40"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> XChaCha20IETF = XChaChaIETF(<span class="tok-number">20</span>);</span> <span class="line" id="L41"></span> <span class="line" id="L42"><span class="tok-comment">/// XChaCha20 (nonce-extended version of the IETF ChaCha20 variant) stream cipher, reduced to 12 rounds</span></span> <span class="line" id="L43"><span class="tok-comment">/// Reduced-rounds versions are faster than the full-round version, but have a lower security margin.</span></span> <span class="line" id="L44"><span class="tok-comment">/// However, ChaCha is still believed to have a comfortable security even with only 8 rounds.</span></span> <span class="line" id="L45"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> XChaCha12IETF = XChaChaIETF(<span class="tok-number">12</span>);</span> <span class="line" id="L46"></span> <span class="line" id="L47"><span class="tok-comment">/// XChaCha20 (nonce-extended version of the IETF ChaCha20 variant) stream cipher, reduced to 8 rounds</span></span> <span class="line" id="L48"><span class="tok-comment">/// Reduced-rounds versions are faster than the full-round version, but have a lower security margin.</span></span> <span class="line" id="L49"><span class="tok-comment">/// However, ChaCha is still believed to have a comfortable security even with only 8 rounds.</span></span> <span class="line" id="L50"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> XChaCha8IETF = XChaChaIETF(<span class="tok-number">8</span>);</span> <span class="line" id="L51"></span> <span class="line" id="L52"><span class="tok-comment">/// ChaCha20-Poly1305 authenticated cipher, as designed for TLS</span></span> <span class="line" id="L53"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> ChaCha20Poly1305 = ChaChaPoly1305(<span class="tok-number">20</span>);</span> <span class="line" id="L54"></span> <span class="line" id="L55"><span class="tok-comment">/// ChaCha20-Poly1305 authenticated cipher, reduced to 12 rounds</span></span> <span class="line" id="L56"><span class="tok-comment">/// Reduced-rounds versions are faster than the full-round version, but have a lower security margin.</span></span> <span class="line" id="L57"><span class="tok-comment">/// However, ChaCha is still believed to have a comfortable security even with only 8 rounds.</span></span> <span class="line" id="L58"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> ChaCha12Poly1305 = ChaChaPoly1305(<span class="tok-number">12</span>);</span> <span class="line" id="L59"></span> <span class="line" id="L60"><span class="tok-comment">/// ChaCha20-Poly1305 authenticated cipher, reduced to 8 rounds</span></span> <span class="line" id="L61"><span class="tok-comment">/// Reduced-rounds versions are faster than the full-round version, but have a lower security margin.</span></span> <span class="line" id="L62"><span class="tok-comment">/// However, ChaCha is still believed to have a comfortable security even with only 8 rounds.</span></span> <span class="line" id="L63"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> ChaCha8Poly1305 = ChaChaPoly1305(<span class="tok-number">8</span>);</span> <span class="line" id="L64"></span> <span class="line" id="L65"><span class="tok-comment">/// XChaCha20-Poly1305 authenticated cipher</span></span> <span class="line" id="L66"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> XChaCha20Poly1305 = XChaChaPoly1305(<span class="tok-number">20</span>);</span> <span class="line" id="L67"></span> <span class="line" id="L68"><span class="tok-comment">/// XChaCha20-Poly1305 authenticated cipher</span></span> <span class="line" id="L69"><span class="tok-comment">/// Reduced-rounds versions are faster than the full-round version, but have a lower security margin.</span></span> <span class="line" id="L70"><span class="tok-comment">/// However, ChaCha is still believed to have a comfortable security even with only 8 rounds.</span></span> <span class="line" id="L71"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> XChaCha12Poly1305 = XChaChaPoly1305(<span class="tok-number">12</span>);</span> <span class="line" id="L72"></span> <span class="line" id="L73"><span class="tok-comment">/// XChaCha20-Poly1305 authenticated cipher</span></span> <span class="line" id="L74"><span class="tok-comment">/// Reduced-rounds versions are faster than the full-round version, but have a lower security margin.</span></span> <span class="line" id="L75"><span class="tok-comment">/// However, ChaCha is still believed to have a comfortable security even with only 8 rounds.</span></span> <span class="line" id="L76"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> XChaCha8Poly1305 = XChaChaPoly1305(<span class="tok-number">8</span>);</span> <span class="line" id="L77"></span> <span class="line" id="L78"><span class="tok-comment">// Vectorized implementation of the core function</span> </span> <span class="line" id="L79"><span class="tok-kw">fn</span> <span class="tok-fn">ChaChaVecImpl</span>(<span class="tok-kw">comptime</span> rounds_nb: <span class="tok-type">usize</span>, <span class="tok-kw">comptime</span> degree: <span class="tok-type">comptime_int</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L80"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L81"> <span class="tok-kw">const</span> Lane = <span class="tok-builtin">@Vector</span>(<span class="tok-number">4</span> * degree, <span class="tok-type">u32</span>);</span> <span class="line" id="L82"> <span class="tok-kw">const</span> BlockVec = [<span class="tok-number">4</span>]Lane;</span> <span class="line" id="L83"></span> <span class="line" id="L84"> <span class="tok-kw">fn</span> <span class="tok-fn">initContext</span>(key: [<span class="tok-number">8</span>]<span class="tok-type">u32</span>, d: [<span class="tok-number">4</span>]<span class="tok-type">u32</span>) BlockVec {</span> <span class="line" id="L85"> <span class="tok-kw">const</span> c = <span class="tok-str">"expand 32-byte k"</span>;</span> <span class="line" id="L86"> <span class="tok-kw">switch</span> (degree) {</span> <span class="line" id="L87"> <span class="tok-number">1</span> => {</span> <span class="line" id="L88"> <span class="tok-kw">const</span> constant_le = Lane{</span> <span class="line" id="L89"> mem.readIntLittle(<span class="tok-type">u32</span>, c[<span class="tok-number">0</span>..<span class="tok-number">4</span>]),</span> <span class="line" id="L90"> mem.readIntLittle(<span class="tok-type">u32</span>, c[<span class="tok-number">4</span>..<span class="tok-number">8</span>]),</span> <span class="line" id="L91"> mem.readIntLittle(<span class="tok-type">u32</span>, c[<span class="tok-number">8</span>..<span class="tok-number">12</span>]),</span> <span class="line" id="L92"> mem.readIntLittle(<span class="tok-type">u32</span>, c[<span class="tok-number">12</span>..<span class="tok-number">16</span>]),</span> <span class="line" id="L93"> };</span> <span class="line" id="L94"> <span class="tok-kw">return</span> BlockVec{</span> <span class="line" id="L95"> constant_le,</span> <span class="line" id="L96"> Lane{ key[<span class="tok-number">0</span>], key[<span class="tok-number">1</span>], key[<span class="tok-number">2</span>], key[<span class="tok-number">3</span>] },</span> <span class="line" id="L97"> Lane{ key[<span class="tok-number">4</span>], key[<span class="tok-number">5</span>], key[<span class="tok-number">6</span>], key[<span class="tok-number">7</span>] },</span> <span class="line" id="L98"> Lane{ d[<span class="tok-number">0</span>], d[<span class="tok-number">1</span>], d[<span class="tok-number">2</span>], d[<span class="tok-number">3</span>] },</span> <span class="line" id="L99"> };</span> <span class="line" id="L100"> },</span> <span class="line" id="L101"> <span class="tok-number">2</span> => {</span> <span class="line" id="L102"> <span class="tok-kw">const</span> constant_le = Lane{</span> <span class="line" id="L103"> mem.readIntLittle(<span class="tok-type">u32</span>, c[<span class="tok-number">0</span>..<span class="tok-number">4</span>]),</span> <span class="line" id="L104"> mem.readIntLittle(<span class="tok-type">u32</span>, c[<span class="tok-number">4</span>..<span class="tok-number">8</span>]),</span> <span class="line" id="L105"> mem.readIntLittle(<span class="tok-type">u32</span>, c[<span class="tok-number">8</span>..<span class="tok-number">12</span>]),</span> <span class="line" id="L106"> mem.readIntLittle(<span class="tok-type">u32</span>, c[<span class="tok-number">12</span>..<span class="tok-number">16</span>]),</span> <span class="line" id="L107"> mem.readIntLittle(<span class="tok-type">u32</span>, c[<span class="tok-number">0</span>..<span class="tok-number">4</span>]),</span> <span class="line" id="L108"> mem.readIntLittle(<span class="tok-type">u32</span>, c[<span class="tok-number">4</span>..<span class="tok-number">8</span>]),</span> <span class="line" id="L109"> mem.readIntLittle(<span class="tok-type">u32</span>, c[<span class="tok-number">8</span>..<span class="tok-number">12</span>]),</span> <span class="line" id="L110"> mem.readIntLittle(<span class="tok-type">u32</span>, c[<span class="tok-number">12</span>..<span class="tok-number">16</span>]),</span> <span class="line" id="L111"> };</span> <span class="line" id="L112"> <span class="tok-kw">const</span> n1 = <span class="tok-builtin">@addWithOverflow</span>(d[<span class="tok-number">0</span>], <span class="tok-number">1</span>);</span> <span class="line" id="L113"> <span class="tok-kw">return</span> BlockVec{</span> <span class="line" id="L114"> constant_le,</span> <span class="line" id="L115"> Lane{ key[<span class="tok-number">0</span>], key[<span class="tok-number">1</span>], key[<span class="tok-number">2</span>], key[<span class="tok-number">3</span>], key[<span class="tok-number">0</span>], key[<span class="tok-number">1</span>], key[<span class="tok-number">2</span>], key[<span class="tok-number">3</span>] },</span> <span class="line" id="L116"> Lane{ key[<span class="tok-number">4</span>], key[<span class="tok-number">5</span>], key[<span class="tok-number">6</span>], key[<span class="tok-number">7</span>], key[<span class="tok-number">4</span>], key[<span class="tok-number">5</span>], key[<span class="tok-number">6</span>], key[<span class="tok-number">7</span>] },</span> <span class="line" id="L117"> Lane{ d[<span class="tok-number">0</span>], d[<span class="tok-number">1</span>], d[<span class="tok-number">2</span>], d[<span class="tok-number">3</span>], n1[<span class="tok-number">0</span>], d[<span class="tok-number">1</span>] +% n1[<span class="tok-number">1</span>], d[<span class="tok-number">2</span>], d[<span class="tok-number">3</span>] },</span> <span class="line" id="L118"> };</span> <span class="line" id="L119"> },</span> <span class="line" id="L120"> <span class="tok-number">4</span> => {</span> <span class="line" id="L121"> <span class="tok-kw">const</span> n1 = <span class="tok-builtin">@addWithOverflow</span>(d[<span class="tok-number">0</span>], <span class="tok-number">1</span>);</span> <span class="line" id="L122"> <span class="tok-kw">const</span> n2 = <span class="tok-builtin">@addWithOverflow</span>(d[<span class="tok-number">0</span>], <span class="tok-number">2</span>);</span> <span class="line" id="L123"> <span class="tok-kw">const</span> n3 = <span class="tok-builtin">@addWithOverflow</span>(d[<span class="tok-number">0</span>], <span class="tok-number">3</span>);</span> <span class="line" id="L124"> <span class="tok-kw">const</span> constant_le = Lane{</span> <span class="line" id="L125"> mem.readIntLittle(<span class="tok-type">u32</span>, c[<span class="tok-number">0</span>..<span class="tok-number">4</span>]),</span> <span class="line" id="L126"> mem.readIntLittle(<span class="tok-type">u32</span>, c[<span class="tok-number">4</span>..<span class="tok-number">8</span>]),</span> <span class="line" id="L127"> mem.readIntLittle(<span class="tok-type">u32</span>, c[<span class="tok-number">8</span>..<span class="tok-number">12</span>]),</span> <span class="line" id="L128"> mem.readIntLittle(<span class="tok-type">u32</span>, c[<span class="tok-number">12</span>..<span class="tok-number">16</span>]),</span> <span class="line" id="L129"> mem.readIntLittle(<span class="tok-type">u32</span>, c[<span class="tok-number">0</span>..<span class="tok-number">4</span>]),</span> <span class="line" id="L130"> mem.readIntLittle(<span class="tok-type">u32</span>, c[<span class="tok-number">4</span>..<span class="tok-number">8</span>]),</span> <span class="line" id="L131"> mem.readIntLittle(<span class="tok-type">u32</span>, c[<span class="tok-number">8</span>..<span class="tok-number">12</span>]),</span> <span class="line" id="L132"> mem.readIntLittle(<span class="tok-type">u32</span>, c[<span class="tok-number">12</span>..<span class="tok-number">16</span>]),</span> <span class="line" id="L133"> mem.readIntLittle(<span class="tok-type">u32</span>, c[<span class="tok-number">0</span>..<span class="tok-number">4</span>]),</span> <span class="line" id="L134"> mem.readIntLittle(<span class="tok-type">u32</span>, c[<span class="tok-number">4</span>..<span class="tok-number">8</span>]),</span> <span class="line" id="L135"> mem.readIntLittle(<span class="tok-type">u32</span>, c[<span class="tok-number">8</span>..<span class="tok-number">12</span>]),</span> <span class="line" id="L136"> mem.readIntLittle(<span class="tok-type">u32</span>, c[<span class="tok-number">12</span>..<span class="tok-number">16</span>]),</span> <span class="line" id="L137"> mem.readIntLittle(<span class="tok-type">u32</span>, c[<span class="tok-number">0</span>..<span class="tok-number">4</span>]),</span> <span class="line" id="L138"> mem.readIntLittle(<span class="tok-type">u32</span>, c[<span class="tok-number">4</span>..<span class="tok-number">8</span>]),</span> <span class="line" id="L139"> mem.readIntLittle(<span class="tok-type">u32</span>, c[<span class="tok-number">8</span>..<span class="tok-number">12</span>]),</span> <span class="line" id="L140"> mem.readIntLittle(<span class="tok-type">u32</span>, c[<span class="tok-number">12</span>..<span class="tok-number">16</span>]),</span> <span class="line" id="L141"> };</span> <span class="line" id="L142"> <span class="tok-kw">return</span> BlockVec{</span> <span class="line" id="L143"> constant_le,</span> <span class="line" id="L144"> Lane{ key[<span class="tok-number">0</span>], key[<span class="tok-number">1</span>], key[<span class="tok-number">2</span>], key[<span class="tok-number">3</span>], key[<span class="tok-number">0</span>], key[<span class="tok-number">1</span>], key[<span class="tok-number">2</span>], key[<span class="tok-number">3</span>], key[<span class="tok-number">0</span>], key[<span class="tok-number">1</span>], key[<span class="tok-number">2</span>], key[<span class="tok-number">3</span>], key[<span class="tok-number">0</span>], key[<span class="tok-number">1</span>], key[<span class="tok-number">2</span>], key[<span class="tok-number">3</span>] },</span> <span class="line" id="L145"> Lane{ key[<span class="tok-number">4</span>], key[<span class="tok-number">5</span>], key[<span class="tok-number">6</span>], key[<span class="tok-number">7</span>], key[<span class="tok-number">4</span>], key[<span class="tok-number">5</span>], key[<span class="tok-number">6</span>], key[<span class="tok-number">7</span>], key[<span class="tok-number">4</span>], key[<span class="tok-number">5</span>], key[<span class="tok-number">6</span>], key[<span class="tok-number">7</span>], key[<span class="tok-number">4</span>], key[<span class="tok-number">5</span>], key[<span class="tok-number">6</span>], key[<span class="tok-number">7</span>] },</span> <span class="line" id="L146"> Lane{ d[<span class="tok-number">0</span>], d[<span class="tok-number">1</span>], d[<span class="tok-number">2</span>], d[<span class="tok-number">3</span>], n1[<span class="tok-number">0</span>], d[<span class="tok-number">1</span>] +% n1[<span class="tok-number">1</span>], d[<span class="tok-number">2</span>], d[<span class="tok-number">3</span>], n2[<span class="tok-number">0</span>], d[<span class="tok-number">1</span>] +% n2[<span class="tok-number">1</span>], d[<span class="tok-number">2</span>], d[<span class="tok-number">3</span>], n3[<span class="tok-number">0</span>], d[<span class="tok-number">1</span>] +% n3[<span class="tok-number">1</span>], d[<span class="tok-number">2</span>], d[<span class="tok-number">3</span>] },</span> <span class="line" id="L147"> };</span> <span class="line" id="L148"> },</span> <span class="line" id="L149"> <span class="tok-kw">else</span> => <span class="tok-builtin">@compileError</span>(<span class="tok-str">"invalid degree"</span>),</span> <span class="line" id="L150"> }</span> <span class="line" id="L151"> }</span> <span class="line" id="L152"></span> <span class="line" id="L153"> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">chacha20Core</span>(x: BlockVec, input: BlockVec) <span class="tok-type">void</span> {</span> <span class="line" id="L154"> x. = input;</span> <span class="line" id="L155"></span> <span class="line" id="L156"> <span class="tok-kw">const</span> m0 = <span class="tok-kw">switch</span> (degree) {</span> <span class="line" id="L157"> <span class="tok-number">1</span> => [_]<span class="tok-type">i32</span>{ <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span> },</span> <span class="line" id="L158"> <span class="tok-number">2</span> => [_]<span class="tok-type">i32</span>{ <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span> } ++ [_]<span class="tok-type">i32</span>{ <span class="tok-number">7</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span> },</span> <span class="line" id="L159"> <span class="tok-number">4</span> => [_]<span class="tok-type">i32</span>{ <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span> } ++ [_]<span class="tok-type">i32</span>{ <span class="tok-number">7</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span> } ++ [_]<span class="tok-type">i32</span>{ <span class="tok-number">11</span>, <span class="tok-number">8</span>, <span class="tok-number">9</span>, <span class="tok-number">10</span> } ++ [_]<span class="tok-type">i32</span>{ <span class="tok-number">15</span>, <span class="tok-number">12</span>, <span class="tok-number">13</span>, <span class="tok-number">14</span> },</span> <span class="line" id="L160"> <span class="tok-kw">else</span> => <span class="tok-builtin">@compileError</span>(<span class="tok-str">"invalid degree"</span>),</span> <span class="line" id="L161"> };</span> <span class="line" id="L162"> <span class="tok-kw">const</span> m1 = <span class="tok-kw">switch</span> (degree) {</span> <span class="line" id="L163"> <span class="tok-number">1</span> => [_]<span class="tok-type">i32</span>{ <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span> },</span> <span class="line" id="L164"> <span class="tok-number">2</span> => [_]<span class="tok-type">i32</span>{ <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span> } ++ [_]<span class="tok-type">i32</span>{ <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span> },</span> <span class="line" id="L165"> <span class="tok-number">4</span> => [_]<span class="tok-type">i32</span>{ <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span> } ++ [_]<span class="tok-type">i32</span>{ <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span> } ++ [_]<span class="tok-type">i32</span>{ <span class="tok-number">10</span>, <span class="tok-number">11</span>, <span class="tok-number">8</span>, <span class="tok-number">9</span> } ++ [_]<span class="tok-type">i32</span>{ <span class="tok-number">14</span>, <span class="tok-number">15</span>, <span class="tok-number">12</span>, <span class="tok-number">13</span> },</span> <span class="line" id="L166"> <span class="tok-kw">else</span> => <span class="tok-builtin">@compileError</span>(<span class="tok-str">"invalid degree"</span>),</span> <span class="line" id="L167"> };</span> <span class="line" id="L168"> <span class="tok-kw">const</span> m2 = <span class="tok-kw">switch</span> (degree) {</span> <span class="line" id="L169"> <span class="tok-number">1</span> => [_]<span class="tok-type">i32</span>{ <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span> },</span> <span class="line" id="L170"> <span class="tok-number">2</span> => [_]<span class="tok-type">i32</span>{ <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span> } ++ [_]<span class="tok-type">i32</span>{ <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">4</span> },</span> <span class="line" id="L171"> <span class="tok-number">4</span> => [_]<span class="tok-type">i32</span>{ <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span> } ++ [_]<span class="tok-type">i32</span>{ <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">4</span> } ++ [_]<span class="tok-type">i32</span>{ <span class="tok-number">9</span>, <span class="tok-number">10</span>, <span class="tok-number">11</span>, <span class="tok-number">8</span> } ++ [_]<span class="tok-type">i32</span>{ <span class="tok-number">13</span>, <span class="tok-number">14</span>, <span class="tok-number">15</span>, <span class="tok-number">12</span> },</span> <span class="line" id="L172"> <span class="tok-kw">else</span> => <span class="tok-builtin">@compileError</span>(<span class="tok-str">"invalid degree"</span>),</span> <span class="line" id="L173"> };</span> <span class="line" id="L174"></span> <span class="line" id="L175"> <span class="tok-kw">var</span> r: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L176"> <span class="tok-kw">while</span> (r < rounds_nb) : (r += <span class="tok-number">2</span>) {</span> <span class="line" id="L177"> x[<span class="tok-number">0</span>] +%= x[<span class="tok-number">1</span>];</span> <span class="line" id="L178"> x[<span class="tok-number">3</span>] ^= x[<span class="tok-number">0</span>];</span> <span class="line" id="L179"> x[<span class="tok-number">3</span>] = math.rotl(Lane, x[<span class="tok-number">3</span>], <span class="tok-number">16</span>);</span> <span class="line" id="L180"></span> <span class="line" id="L181"> x[<span class="tok-number">2</span>] +%= x[<span class="tok-number">3</span>];</span> <span class="line" id="L182"> x[<span class="tok-number">1</span>] ^= x[<span class="tok-number">2</span>];</span> <span class="line" id="L183"> x[<span class="tok-number">1</span>] = math.rotl(Lane, x[<span class="tok-number">1</span>], <span class="tok-number">12</span>);</span> <span class="line" id="L184"></span> <span class="line" id="L185"> x[<span class="tok-number">0</span>] +%= x[<span class="tok-number">1</span>];</span> <span class="line" id="L186"> x[<span class="tok-number">3</span>] ^= x[<span class="tok-number">0</span>];</span> <span class="line" id="L187"> x[<span class="tok-number">0</span>] = <span class="tok-builtin">@shuffle</span>(<span class="tok-type">u32</span>, x[<span class="tok-number">0</span>], <span class="tok-null">undefined</span>, m0);</span> <span class="line" id="L188"> x[<span class="tok-number">3</span>] = math.rotl(Lane, x[<span class="tok-number">3</span>], <span class="tok-number">8</span>);</span> <span class="line" id="L189"></span> <span class="line" id="L190"> x[<span class="tok-number">2</span>] +%= x[<span class="tok-number">3</span>];</span> <span class="line" id="L191"> x[<span class="tok-number">3</span>] = <span class="tok-builtin">@shuffle</span>(<span class="tok-type">u32</span>, x[<span class="tok-number">3</span>], <span class="tok-null">undefined</span>, m1);</span> <span class="line" id="L192"> x[<span class="tok-number">1</span>] ^= x[<span class="tok-number">2</span>];</span> <span class="line" id="L193"> x[<span class="tok-number">2</span>] = <span class="tok-builtin">@shuffle</span>(<span class="tok-type">u32</span>, x[<span class="tok-number">2</span>], <span class="tok-null">undefined</span>, m2);</span> <span class="line" id="L194"> x[<span class="tok-number">1</span>] = math.rotl(Lane, x[<span class="tok-number">1</span>], <span class="tok-number">7</span>);</span> <span class="line" id="L195"></span> <span class="line" id="L196"> x[<span class="tok-number">0</span>] +%= x[<span class="tok-number">1</span>];</span> <span class="line" id="L197"> x[<span class="tok-number">3</span>] ^= x[<span class="tok-number">0</span>];</span> <span class="line" id="L198"> x[<span class="tok-number">3</span>] = math.rotl(Lane, x[<span class="tok-number">3</span>], <span class="tok-number">16</span>);</span> <span class="line" id="L199"></span> <span class="line" id="L200"> x[<span class="tok-number">2</span>] +%= x[<span class="tok-number">3</span>];</span> <span class="line" id="L201"> x[<span class="tok-number">1</span>] ^= x[<span class="tok-number">2</span>];</span> <span class="line" id="L202"> x[<span class="tok-number">1</span>] = math.rotl(Lane, x[<span class="tok-number">1</span>], <span class="tok-number">12</span>);</span> <span class="line" id="L203"></span> <span class="line" id="L204"> x[<span class="tok-number">0</span>] +%= x[<span class="tok-number">1</span>];</span> <span class="line" id="L205"> x[<span class="tok-number">3</span>] ^= x[<span class="tok-number">0</span>];</span> <span class="line" id="L206"> x[<span class="tok-number">0</span>] = <span class="tok-builtin">@shuffle</span>(<span class="tok-type">u32</span>, x[<span class="tok-number">0</span>], <span class="tok-null">undefined</span>, m2);</span> <span class="line" id="L207"> x[<span class="tok-number">3</span>] = math.rotl(Lane, x[<span class="tok-number">3</span>], <span class="tok-number">8</span>);</span> <span class="line" id="L208"></span> <span class="line" id="L209"> x[<span class="tok-number">2</span>] +%= x[<span class="tok-number">3</span>];</span> <span class="line" id="L210"> x[<span class="tok-number">3</span>] = <span class="tok-builtin">@shuffle</span>(<span class="tok-type">u32</span>, x[<span class="tok-number">3</span>], <span class="tok-null">undefined</span>, m1);</span> <span class="line" id="L211"> x[<span class="tok-number">1</span>] ^= x[<span class="tok-number">2</span>];</span> <span class="line" id="L212"> x[<span class="tok-number">2</span>] = <span class="tok-builtin">@shuffle</span>(<span class="tok-type">u32</span>, x[<span class="tok-number">2</span>], <span class="tok-null">undefined</span>, m0);</span> <span class="line" id="L213"> x[<span class="tok-number">1</span>] = math.rotl(Lane, x[<span class="tok-number">1</span>], <span class="tok-number">7</span>);</span> <span class="line" id="L214"> }</span> <span class="line" id="L215"> }</span> <span class="line" id="L216"></span> <span class="line" id="L217"> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">hashToBytes</span>(<span class="tok-kw">comptime</span> dm: <span class="tok-type">usize</span>, out: [<span class="tok-number">64</span> dm]<span class="tok-type">u8</span>, x: BlockVec) <span class="tok-type">void</span> {</span> <span class="line" id="L218"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..dm) \|d\| {</span> <span class="line" id="L219"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..<span class="tok-number">4</span>) \|i\| {</span> <span class="line" id="L220"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">64</span> * d + <span class="tok-number">16</span> * i + <span class="tok-number">0</span> ..][<span class="tok-number">0</span>..<span class="tok-number">4</span>], x[i][<span class="tok-number">0</span> + <span class="tok-number">4</span> * d]);</span> <span class="line" id="L221"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">64</span> * d + <span class="tok-number">16</span> * i + <span class="tok-number">4</span> ..][<span class="tok-number">0</span>..<span class="tok-number">4</span>], x[i][<span class="tok-number">1</span> + <span class="tok-number">4</span> * d]);</span> <span class="line" id="L222"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">64</span> * d + <span class="tok-number">16</span> * i + <span class="tok-number">8</span> ..][<span class="tok-number">0</span>..<span class="tok-number">4</span>], x[i][<span class="tok-number">2</span> + <span class="tok-number">4</span> * d]);</span> <span class="line" id="L223"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">64</span> * d + <span class="tok-number">16</span> * i + <span class="tok-number">12</span> ..][<span class="tok-number">0</span>..<span class="tok-number">4</span>], x[i][<span class="tok-number">3</span> + <span class="tok-number">4</span> * d]);</span> <span class="line" id="L224"> }</span> <span class="line" id="L225"> }</span> <span class="line" id="L226"> }</span> <span class="line" id="L227"></span> <span class="line" id="L228"> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">contextFeedback</span>(x: BlockVec, ctx: BlockVec) <span class="tok-type">void</span> {</span> <span class="line" id="L229"> x[<span class="tok-number">0</span>] +%= ctx[<span class="tok-number">0</span>];</span> <span class="line" id="L230"> x[<span class="tok-number">1</span>] +%= ctx[<span class="tok-number">1</span>];</span> <span class="line" id="L231"> x[<span class="tok-number">2</span>] +%= ctx[<span class="tok-number">2</span>];</span> <span class="line" id="L232"> x[<span class="tok-number">3</span>] +%= ctx[<span class="tok-number">3</span>];</span> <span class="line" id="L233"> }</span> <span class="line" id="L234"></span> <span class="line" id="L235"> <span class="tok-kw">fn</span> <span class="tok-fn">chacha20Xor</span>(out: []<span class="tok-type">u8</span>, in: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, key: [<span class="tok-number">8</span>]<span class="tok-type">u32</span>, nonce_and_counter: [<span class="tok-number">4</span>]<span class="tok-type">u32</span>, <span class="tok-kw">comptime</span> count64: <span class="tok-type">bool</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L236"> <span class="tok-kw">var</span> ctx = initContext(key, nonce_and_counter);</span> <span class="line" id="L237"> <span class="tok-kw">var</span> x: BlockVec = <span class="tok-null">undefined</span>;</span> <span class="line" id="L238"> <span class="tok-kw">var</span> buf: [<span class="tok-number">64</span> degree]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L239"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L240"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> ([_]<span class="tok-type">comptime_int</span>{ <span class="tok-number">4</span>, <span class="tok-number">2</span>, <span class="tok-number">1</span> }) \|d\| {</span> <span class="line" id="L241"> <span class="tok-kw">while</span> (degree >= d <span class="tok-kw">and</span> i + <span class="tok-number">64</span> * d <= in.len) : (i += <span class="tok-number">64</span> * d) {</span> <span class="line" id="L242"> chacha20Core(x[<span class="tok-number">0</span>..], ctx);</span> <span class="line" id="L243"> contextFeedback(&x, ctx);</span> <span class="line" id="L244"> hashToBytes(d, buf[<span class="tok-number">0</span> .. <span class="tok-number">64</span> * d], x);</span> <span class="line" id="L245"></span> <span class="line" id="L246"> <span class="tok-kw">var</span> xout = out[i..];</span> <span class="line" id="L247"> <span class="tok-kw">const</span> xin = in[i..];</span> <span class="line" id="L248"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..<span class="tok-number">64</span> * d) \|j\| {</span> <span class="line" id="L249"> xout[j] = xin[j];</span> <span class="line" id="L250"> }</span> <span class="line" id="L251"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..<span class="tok-number">64</span> * d) \|j\| {</span> <span class="line" id="L252"> xout[j] ^= buf[j];</span> <span class="line" id="L253"> }</span> <span class="line" id="L254"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..d) \|d_\| {</span> <span class="line" id="L255"> <span class="tok-kw">if</span> (count64) {</span> <span class="line" id="L256"> <span class="tok-kw">const</span> next = <span class="tok-builtin">@addWithOverflow</span>(ctx[<span class="tok-number">3</span>][<span class="tok-number">4</span> * d_], d);</span> <span class="line" id="L257"> ctx[<span class="tok-number">3</span>][<span class="tok-number">4</span> * d_] = next[<span class="tok-number">0</span>];</span> <span class="line" id="L258"> ctx[<span class="tok-number">3</span>][<span class="tok-number">4</span> * d_ + <span class="tok-number">1</span>] +%= next[<span class="tok-number">1</span>];</span> <span class="line" id="L259"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L260"> ctx[<span class="tok-number">3</span>][<span class="tok-number">4</span> * d_] +%= d;</span> <span class="line" id="L261"> }</span> <span class="line" id="L262"> }</span> <span class="line" id="L263"> }</span> <span class="line" id="L264"> }</span> <span class="line" id="L265"> <span class="tok-kw">if</span> (i < in.len) {</span> <span class="line" id="L266"> chacha20Core(x[<span class="tok-number">0</span>..], ctx);</span> <span class="line" id="L267"> contextFeedback(&x, ctx);</span> <span class="line" id="L268"> hashToBytes(<span class="tok-number">1</span>, buf[<span class="tok-number">0</span>..<span class="tok-number">64</span>], x);</span> <span class="line" id="L269"></span> <span class="line" id="L270"> <span class="tok-kw">var</span> xout = out[i..];</span> <span class="line" id="L271"> <span class="tok-kw">const</span> xin = in[i..];</span> <span class="line" id="L272"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..in.len % <span class="tok-number">64</span>) \|j\| {</span> <span class="line" id="L273"> xout[j] = xin[j] ^ buf[j];</span> <span class="line" id="L274"> }</span> <span class="line" id="L275"> }</span> <span class="line" id="L276"> }</span> <span class="line" id="L277"></span> <span class="line" id="L278"> <span class="tok-kw">fn</span> <span class="tok-fn">chacha20Stream</span>(out: []<span class="tok-type">u8</span>, key: [<span class="tok-number">8</span>]<span class="tok-type">u32</span>, nonce_and_counter: [<span class="tok-number">4</span>]<span class="tok-type">u32</span>, <span class="tok-kw">comptime</span> count64: <span class="tok-type">bool</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L279"> <span class="tok-kw">var</span> ctx = initContext(key, nonce_and_counter);</span> <span class="line" id="L280"> <span class="tok-kw">var</span> x: BlockVec = <span class="tok-null">undefined</span>;</span> <span class="line" id="L281"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L282"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> ([_]<span class="tok-type">comptime_int</span>{ <span class="tok-number">4</span>, <span class="tok-number">2</span>, <span class="tok-number">1</span> }) \|d\| {</span> <span class="line" id="L283"> <span class="tok-kw">while</span> (degree >= d <span class="tok-kw">and</span> i + <span class="tok-number">64</span> * d <= out.len) : (i += <span class="tok-number">64</span> * d) {</span> <span class="line" id="L284"> chacha20Core(x[<span class="tok-number">0</span>..], ctx);</span> <span class="line" id="L285"> contextFeedback(&x, ctx);</span> <span class="line" id="L286"> hashToBytes(d, out[i..][<span class="tok-number">0</span> .. <span class="tok-number">64</span> * d], x);</span> <span class="line" id="L287"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..d) \|d_\| {</span> <span class="line" id="L288"> <span class="tok-kw">if</span> (count64) {</span> <span class="line" id="L289"> <span class="tok-kw">const</span> next = <span class="tok-builtin">@addWithOverflow</span>(ctx[<span class="tok-number">3</span>][<span class="tok-number">4</span> * d_], d);</span> <span class="line" id="L290"> ctx[<span class="tok-number">3</span>][<span class="tok-number">4</span> * d_] = next[<span class="tok-number">0</span>];</span> <span class="line" id="L291"> ctx[<span class="tok-number">3</span>][<span class="tok-number">4</span> * d_ + <span class="tok-number">1</span>] +%= next[<span class="tok-number">1</span>];</span> <span class="line" id="L292"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L293"> ctx[<span class="tok-number">3</span>][<span class="tok-number">4</span> * d_] +%= d;</span> <span class="line" id="L294"> }</span> <span class="line" id="L295"> }</span> <span class="line" id="L296"> }</span> <span class="line" id="L297"> }</span> <span class="line" id="L298"> <span class="tok-kw">if</span> (i < out.len) {</span> <span class="line" id="L299"> chacha20Core(x[<span class="tok-number">0</span>..], ctx);</span> <span class="line" id="L300"> contextFeedback(&x, ctx);</span> <span class="line" id="L301"></span> <span class="line" id="L302"> <span class="tok-kw">var</span> buf: [<span class="tok-number">64</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L303"> hashToBytes(<span class="tok-number">1</span>, buf[<span class="tok-number">0</span>..], x);</span> <span class="line" id="L304"> <span class="tok-builtin">@memcpy</span>(out[i..], buf[<span class="tok-number">0</span> .. out.len - i]);</span> <span class="line" id="L305"> }</span> <span class="line" id="L306"> }</span> <span class="line" id="L307"></span> <span class="line" id="L308"> <span class="tok-kw">fn</span> <span class="tok-fn">hchacha20</span>(input: [<span class="tok-number">16</span>]<span class="tok-type">u8</span>, key: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>) [<span class="tok-number">32</span>]<span class="tok-type">u8</span> {</span> <span class="line" id="L309"> <span class="tok-kw">var</span> c: [<span class="tok-number">4</span>]<span class="tok-type">u32</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L310"> <span class="tok-kw">for</span> (c, <span class="tok-number">0</span>..) \|_, i\| {</span> <span class="line" id="L311"> c[i] = mem.readIntLittle(<span class="tok-type">u32</span>, input[<span class="tok-number">4</span> * i ..][<span class="tok-number">0</span>..<span class="tok-number">4</span>]);</span> <span class="line" id="L312"> }</span> <span class="line" id="L313"> <span class="tok-kw">const</span> ctx = initContext(keyToWords(key), c);</span> <span class="line" id="L314"> <span class="tok-kw">var</span> x: BlockVec = <span class="tok-null">undefined</span>;</span> <span class="line" id="L315"> chacha20Core(x[<span class="tok-number">0</span>..], ctx);</span> <span class="line" id="L316"> <span class="tok-kw">var</span> out: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L317"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">0</span>..<span class="tok-number">4</span>], x[<span class="tok-number">0</span>][<span class="tok-number">0</span>]);</span> <span class="line" id="L318"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">4</span>..<span class="tok-number">8</span>], x[<span class="tok-number">0</span>][<span class="tok-number">1</span>]);</span> <span class="line" id="L319"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">8</span>..<span class="tok-number">12</span>], x[<span class="tok-number">0</span>][<span class="tok-number">2</span>]);</span> <span class="line" id="L320"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">12</span>..<span class="tok-number">16</span>], x[<span class="tok-number">0</span>][<span class="tok-number">3</span>]);</span> <span class="line" id="L321"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">16</span>..<span class="tok-number">20</span>], x[<span class="tok-number">3</span>][<span class="tok-number">0</span>]);</span> <span class="line" id="L322"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">20</span>..<span class="tok-number">24</span>], x[<span class="tok-number">3</span>][<span class="tok-number">1</span>]);</span> <span class="line" id="L323"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">24</span>..<span class="tok-number">28</span>], x[<span class="tok-number">3</span>][<span class="tok-number">2</span>]);</span> <span class="line" id="L324"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">28</span>..<span class="tok-number">32</span>], x[<span class="tok-number">3</span>][<span class="tok-number">3</span>]);</span> <span class="line" id="L325"> <span class="tok-kw">return</span> out;</span> <span class="line" id="L326"> }</span> <span class="line" id="L327"> };</span> <span class="line" id="L328">}</span> <span class="line" id="L329"></span> <span class="line" id="L330"><span class="tok-comment">// Non-vectorized implementation of the core function</span> </span> <span class="line" id="L331"><span class="tok-kw">fn</span> <span class="tok-fn">ChaChaNonVecImpl</span>(<span class="tok-kw">comptime</span> rounds_nb: <span class="tok-type">usize</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L332"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L333"> <span class="tok-kw">const</span> BlockVec = [<span class="tok-number">16</span>]<span class="tok-type">u32</span>;</span> <span class="line" id="L334"></span> <span class="line" id="L335"> <span class="tok-kw">fn</span> <span class="tok-fn">initContext</span>(key: [<span class="tok-number">8</span>]<span class="tok-type">u32</span>, d: [<span class="tok-number">4</span>]<span class="tok-type">u32</span>) BlockVec {</span> <span class="line" id="L336"> <span class="tok-kw">const</span> c = <span class="tok-str">"expand 32-byte k"</span>;</span> <span class="line" id="L337"> <span class="tok-kw">const</span> constant_le = <span class="tok-kw">comptime</span> [<span class="tok-number">4</span>]<span class="tok-type">u32</span>{</span> <span class="line" id="L338"> mem.readIntLittle(<span class="tok-type">u32</span>, c[<span class="tok-number">0</span>..<span class="tok-number">4</span>]),</span> <span class="line" id="L339"> mem.readIntLittle(<span class="tok-type">u32</span>, c[<span class="tok-number">4</span>..<span class="tok-number">8</span>]),</span> <span class="line" id="L340"> mem.readIntLittle(<span class="tok-type">u32</span>, c[<span class="tok-number">8</span>..<span class="tok-number">12</span>]),</span> <span class="line" id="L341"> mem.readIntLittle(<span class="tok-type">u32</span>, c[<span class="tok-number">12</span>..<span class="tok-number">16</span>]),</span> <span class="line" id="L342"> };</span> <span class="line" id="L343"> <span class="tok-kw">return</span> BlockVec{</span> <span class="line" id="L344"> constant_le[<span class="tok-number">0</span>], constant_le[<span class="tok-number">1</span>], constant_le[<span class="tok-number">2</span>], constant_le[<span class="tok-number">3</span>],</span> <span class="line" id="L345"> key[<span class="tok-number">0</span>], key[<span class="tok-number">1</span>], key[<span class="tok-number">2</span>], key[<span class="tok-number">3</span>],</span> <span class="line" id="L346"> key[<span class="tok-number">4</span>], key[<span class="tok-number">5</span>], key[<span class="tok-number">6</span>], key[<span class="tok-number">7</span>],</span> <span class="line" id="L347"> d[<span class="tok-number">0</span>], d[<span class="tok-number">1</span>], d[<span class="tok-number">2</span>], d[<span class="tok-number">3</span>],</span> <span class="line" id="L348"> };</span> <span class="line" id="L349"> }</span> <span class="line" id="L350"></span> <span class="line" id="L351"> <span class="tok-kw">const</span> QuarterRound = <span class="tok-kw">struct</span> {</span> <span class="line" id="L352"> a: <span class="tok-type">usize</span>,</span> <span class="line" id="L353"> b: <span class="tok-type">usize</span>,</span> <span class="line" id="L354"> c: <span class="tok-type">usize</span>,</span> <span class="line" id="L355"> d: <span class="tok-type">usize</span>,</span> <span class="line" id="L356"> };</span> <span class="line" id="L357"></span> <span class="line" id="L358"> <span class="tok-kw">fn</span> <span class="tok-fn">Rp</span>(a: <span class="tok-type">usize</span>, b: <span class="tok-type">usize</span>, c: <span class="tok-type">usize</span>, d: <span class="tok-type">usize</span>) QuarterRound {</span> <span class="line" id="L359"> <span class="tok-kw">return</span> QuarterRound{</span> <span class="line" id="L360"> .a = a,</span> <span class="line" id="L361"> .b = b,</span> <span class="line" id="L362"> .c = c,</span> <span class="line" id="L363"> .d = d,</span> <span class="line" id="L364"> };</span> <span class="line" id="L365"> }</span> <span class="line" id="L366"></span> <span class="line" id="L367"> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">chacha20Core</span>(x: BlockVec, input: BlockVec) <span class="tok-type">void</span> {</span> <span class="line" id="L368"> x. = input;</span> <span class="line" id="L369"></span> <span class="line" id="L370"> <span class="tok-kw">const</span> rounds = <span class="tok-kw">comptime</span> [_]QuarterRound{</span> <span class="line" id="L371"> Rp(<span class="tok-number">0</span>, <span class="tok-number">4</span>, <span class="tok-number">8</span>, <span class="tok-number">12</span>),</span> <span class="line" id="L372"> Rp(<span class="tok-number">1</span>, <span class="tok-number">5</span>, <span class="tok-number">9</span>, <span class="tok-number">13</span>),</span> <span class="line" id="L373"> Rp(<span class="tok-number">2</span>, <span class="tok-number">6</span>, <span class="tok-number">10</span>, <span class="tok-number">14</span>),</span> <span class="line" id="L374"> Rp(<span class="tok-number">3</span>, <span class="tok-number">7</span>, <span class="tok-number">11</span>, <span class="tok-number">15</span>),</span> <span class="line" id="L375"> Rp(<span class="tok-number">0</span>, <span class="tok-number">5</span>, <span class="tok-number">10</span>, <span class="tok-number">15</span>),</span> <span class="line" id="L376"> Rp(<span class="tok-number">1</span>, <span class="tok-number">6</span>, <span class="tok-number">11</span>, <span class="tok-number">12</span>),</span> <span class="line" id="L377"> Rp(<span class="tok-number">2</span>, <span class="tok-number">7</span>, <span class="tok-number">8</span>, <span class="tok-number">13</span>),</span> <span class="line" id="L378"> Rp(<span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">9</span>, <span class="tok-number">14</span>),</span> <span class="line" id="L379"> };</span> <span class="line" id="L380"></span> <span class="line" id="L381"> <span class="tok-kw">comptime</span> <span class="tok-kw">var</span> j: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L382"> <span class="tok-kw">inline</span> <span class="tok-kw">while</span> (j < rounds_nb) : (j += <span class="tok-number">2</span>) {</span> <span class="line" id="L383"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (rounds) \|r\| {</span> <span class="line" id="L384"> x[r.a] +%= x[r.b];</span> <span class="line" id="L385"> x[r.d] = math.rotl(<span class="tok-type">u32</span>, x[r.d] ^ x[r.a], <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-number">16</span>));</span> <span class="line" id="L386"> x[r.c] +%= x[r.d];</span> <span class="line" id="L387"> x[r.b] = math.rotl(<span class="tok-type">u32</span>, x[r.b] ^ x[r.c], <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-number">12</span>));</span> <span class="line" id="L388"> x[r.a] +%= x[r.b];</span> <span class="line" id="L389"> x[r.d] = math.rotl(<span class="tok-type">u32</span>, x[r.d] ^ x[r.a], <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-number">8</span>));</span> <span class="line" id="L390"> x[r.c] +%= x[r.d];</span> <span class="line" id="L391"> x[r.b] = math.rotl(<span class="tok-type">u32</span>, x[r.b] ^ x[r.c], <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-number">7</span>));</span> <span class="line" id="L392"> }</span> <span class="line" id="L393"> }</span> <span class="line" id="L394"> }</span> <span class="line" id="L395"></span> <span class="line" id="L396"> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">hashToBytes</span>(out: [<span class="tok-number">64</span>]<span class="tok-type">u8</span>, x: BlockVec) <span class="tok-type">void</span> {</span> <span class="line" id="L397"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..<span class="tok-number">4</span>) \|i\| {</span> <span class="line" id="L398"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">16</span> i + <span class="tok-number">0</span> ..][<span class="tok-number">0</span>..<span class="tok-number">4</span>], x[i * <span class="tok-number">4</span> + <span class="tok-number">0</span>]);</span> <span class="line" id="L399"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">16</span> * i + <span class="tok-number">4</span> ..][<span class="tok-number">0</span>..<span class="tok-number">4</span>], x[i * <span class="tok-number">4</span> + <span class="tok-number">1</span>]);</span> <span class="line" id="L400"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">16</span> * i + <span class="tok-number">8</span> ..][<span class="tok-number">0</span>..<span class="tok-number">4</span>], x[i * <span class="tok-number">4</span> + <span class="tok-number">2</span>]);</span> <span class="line" id="L401"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">16</span> * i + <span class="tok-number">12</span> ..][<span class="tok-number">0</span>..<span class="tok-number">4</span>], x[i * <span class="tok-number">4</span> + <span class="tok-number">3</span>]);</span> <span class="line" id="L402"> }</span> <span class="line" id="L403"> }</span> <span class="line" id="L404"></span> <span class="line" id="L405"> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">contextFeedback</span>(x: BlockVec, ctx: BlockVec) <span class="tok-type">void</span> {</span> <span class="line" id="L406"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..<span class="tok-number">16</span>) \|i\| {</span> <span class="line" id="L407"> x[i] +%= ctx[i];</span> <span class="line" id="L408"> }</span> <span class="line" id="L409"> }</span> <span class="line" id="L410"></span> <span class="line" id="L411"> <span class="tok-kw">fn</span> <span class="tok-fn">chacha20Xor</span>(out: []<span class="tok-type">u8</span>, in: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, key: [<span class="tok-number">8</span>]<span class="tok-type">u32</span>, nonce_and_counter: [<span class="tok-number">4</span>]<span class="tok-type">u32</span>, <span class="tok-kw">comptime</span> count64: <span class="tok-type">bool</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L412"> <span class="tok-kw">var</span> ctx = initContext(key, nonce_and_counter);</span> <span class="line" id="L413"> <span class="tok-kw">var</span> x: BlockVec = <span class="tok-null">undefined</span>;</span> <span class="line" id="L414"> <span class="tok-kw">var</span> buf: [<span class="tok-number">64</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L415"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L416"> <span class="tok-kw">while</span> (i + <span class="tok-number">64</span> <= in.len) : (i += <span class="tok-number">64</span>) {</span> <span class="line" id="L417"> chacha20Core(x[<span class="tok-number">0</span>..], ctx);</span> <span class="line" id="L418"> contextFeedback(&x, ctx);</span> <span class="line" id="L419"> hashToBytes(buf[<span class="tok-number">0</span>..], x);</span> <span class="line" id="L420"></span> <span class="line" id="L421"> <span class="tok-kw">var</span> xout = out[i..];</span> <span class="line" id="L422"> <span class="tok-kw">const</span> xin = in[i..];</span> <span class="line" id="L423"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..<span class="tok-number">64</span>) \|j\| {</span> <span class="line" id="L424"> xout[j] = xin[j];</span> <span class="line" id="L425"> }</span> <span class="line" id="L426"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..<span class="tok-number">64</span>) \|j\| {</span> <span class="line" id="L427"> xout[j] ^= buf[j];</span> <span class="line" id="L428"> }</span> <span class="line" id="L429"> <span class="tok-kw">if</span> (count64) {</span> <span class="line" id="L430"> <span class="tok-kw">const</span> next = <span class="tok-builtin">@addWithOverflow</span>(ctx[<span class="tok-number">12</span>], <span class="tok-number">1</span>);</span> <span class="line" id="L431"> ctx[<span class="tok-number">12</span>] = next[<span class="tok-number">0</span>];</span> <span class="line" id="L432"> ctx[<span class="tok-number">13</span>] +%= next[<span class="tok-number">1</span>];</span> <span class="line" id="L433"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L434"> ctx[<span class="tok-number">12</span>] +%= <span class="tok-number">1</span>;</span> <span class="line" id="L435"> }</span> <span class="line" id="L436"> }</span> <span class="line" id="L437"> <span class="tok-kw">if</span> (i < in.len) {</span> <span class="line" id="L438"> chacha20Core(x[<span class="tok-number">0</span>..], ctx);</span> <span class="line" id="L439"> contextFeedback(&x, ctx);</span> <span class="line" id="L440"> hashToBytes(buf[<span class="tok-number">0</span>..], x);</span> <span class="line" id="L441"></span> <span class="line" id="L442"> <span class="tok-kw">var</span> xout = out[i..];</span> <span class="line" id="L443"> <span class="tok-kw">const</span> xin = in[i..];</span> <span class="line" id="L444"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..in.len % <span class="tok-number">64</span>) \|j\| {</span> <span class="line" id="L445"> xout[j] = xin[j] ^ buf[j];</span> <span class="line" id="L446"> }</span> <span class="line" id="L447"> }</span> <span class="line" id="L448"> }</span> <span class="line" id="L449"></span> <span class="line" id="L450"> <span class="tok-kw">fn</span> <span class="tok-fn">chacha20Stream</span>(out: []<span class="tok-type">u8</span>, key: [<span class="tok-number">8</span>]<span class="tok-type">u32</span>, nonce_and_counter: [<span class="tok-number">4</span>]<span class="tok-type">u32</span>, <span class="tok-kw">comptime</span> count64: <span class="tok-type">bool</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L451"> <span class="tok-kw">var</span> ctx = initContext(key, nonce_and_counter);</span> <span class="line" id="L452"> <span class="tok-kw">var</span> x: BlockVec = <span class="tok-null">undefined</span>;</span> <span class="line" id="L453"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L454"> <span class="tok-kw">while</span> (i + <span class="tok-number">64</span> <= out.len) : (i += <span class="tok-number">64</span>) {</span> <span class="line" id="L455"> chacha20Core(x[<span class="tok-number">0</span>..], ctx);</span> <span class="line" id="L456"> contextFeedback(&x, ctx);</span> <span class="line" id="L457"> hashToBytes(out[i..][<span class="tok-number">0</span>..<span class="tok-number">64</span>], x);</span> <span class="line" id="L458"> <span class="tok-kw">if</span> (count64) {</span> <span class="line" id="L459"> <span class="tok-kw">const</span> next = <span class="tok-builtin">@addWithOverflow</span>(ctx[<span class="tok-number">12</span>], <span class="tok-number">1</span>);</span> <span class="line" id="L460"> ctx[<span class="tok-number">12</span>] = next[<span class="tok-number">0</span>];</span> <span class="line" id="L461"> ctx[<span class="tok-number">13</span>] +%= next[<span class="tok-number">1</span>];</span> <span class="line" id="L462"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L463"> ctx[<span class="tok-number">12</span>] +%= <span class="tok-number">1</span>;</span> <span class="line" id="L464"> }</span> <span class="line" id="L465"> }</span> <span class="line" id="L466"> <span class="tok-kw">if</span> (i < out.len) {</span> <span class="line" id="L467"> chacha20Core(x[<span class="tok-number">0</span>..], ctx);</span> <span class="line" id="L468"> contextFeedback(&x, ctx);</span> <span class="line" id="L469"></span> <span class="line" id="L470"> <span class="tok-kw">var</span> buf: [<span class="tok-number">64</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L471"> hashToBytes(buf[<span class="tok-number">0</span>..], x);</span> <span class="line" id="L472"> <span class="tok-builtin">@memcpy</span>(out[i..], buf[<span class="tok-number">0</span> .. out.len - i]);</span> <span class="line" id="L473"> }</span> <span class="line" id="L474"> }</span> <span class="line" id="L475"></span> <span class="line" id="L476"> <span class="tok-kw">fn</span> <span class="tok-fn">hchacha20</span>(input: [<span class="tok-number">16</span>]<span class="tok-type">u8</span>, key: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>) [<span class="tok-number">32</span>]<span class="tok-type">u8</span> {</span> <span class="line" id="L477"> <span class="tok-kw">var</span> c: [<span class="tok-number">4</span>]<span class="tok-type">u32</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L478"> <span class="tok-kw">for</span> (c, <span class="tok-number">0</span>..) \|_, i\| {</span> <span class="line" id="L479"> c[i] = mem.readIntLittle(<span class="tok-type">u32</span>, input[<span class="tok-number">4</span> i ..][<span class="tok-number">0</span>..<span class="tok-number">4</span>]);</span> <span class="line" id="L480"> }</span> <span class="line" id="L481"> <span class="tok-kw">const</span> ctx = initContext(keyToWords(key), c);</span> <span class="line" id="L482"> <span class="tok-kw">var</span> x: BlockVec = <span class="tok-null">undefined</span>;</span> <span class="line" id="L483"> chacha20Core(x[<span class="tok-number">0</span>..], ctx);</span> <span class="line" id="L484"> <span class="tok-kw">var</span> out: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L485"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">0</span>..<span class="tok-number">4</span>], x[<span class="tok-number">0</span>]);</span> <span class="line" id="L486"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">4</span>..<span class="tok-number">8</span>], x[<span class="tok-number">1</span>]);</span> <span class="line" id="L487"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">8</span>..<span class="tok-number">12</span>], x[<span class="tok-number">2</span>]);</span> <span class="line" id="L488"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">12</span>..<span class="tok-number">16</span>], x[<span class="tok-number">3</span>]);</span> <span class="line" id="L489"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">16</span>..<span class="tok-number">20</span>], x[<span class="tok-number">12</span>]);</span> <span class="line" id="L490"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">20</span>..<span class="tok-number">24</span>], x[<span class="tok-number">13</span>]);</span> <span class="line" id="L491"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">24</span>..<span class="tok-number">28</span>], x[<span class="tok-number">14</span>]);</span> <span class="line" id="L492"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">28</span>..<span class="tok-number">32</span>], x[<span class="tok-number">15</span>]);</span> <span class="line" id="L493"> <span class="tok-kw">return</span> out;</span> <span class="line" id="L494"> }</span> <span class="line" id="L495"> };</span> <span class="line" id="L496">}</span> <span class="line" id="L497"></span> <span class="line" id="L498"><span class="tok-kw">fn</span> <span class="tok-fn">ChaChaImpl</span>(<span class="tok-kw">comptime</span> rounds_nb: <span class="tok-type">usize</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L499"> <span class="tok-kw">switch</span> (builtin.cpu.arch) {</span> <span class="line" id="L500"> .x86_64 => {</span> <span class="line" id="L501"> <span class="tok-kw">const</span> has_avx2 = std.Target.x86.featureSetHas(builtin.cpu.features, .avx2);</span> <span class="line" id="L502"> <span class="tok-kw">const</span> has_avx512f = std.Target.x86.featureSetHas(builtin.cpu.features, .avx512f);</span> <span class="line" id="L503"> <span class="tok-kw">if</span> (has_avx512f) <span class="tok-kw">return</span> ChaChaVecImpl(rounds_nb, <span class="tok-number">4</span>);</span> <span class="line" id="L504"> <span class="tok-kw">if</span> (has_avx2) <span class="tok-kw">return</span> ChaChaVecImpl(rounds_nb, <span class="tok-number">2</span>);</span> <span class="line" id="L505"> <span class="tok-kw">return</span> ChaChaVecImpl(rounds_nb, <span class="tok-number">1</span>);</span> <span class="line" id="L506"> },</span> <span class="line" id="L507"> .aarch64 => {</span> <span class="line" id="L508"> <span class="tok-kw">const</span> has_neon = std.Target.aarch64.featureSetHas(builtin.cpu.features, .neon);</span> <span class="line" id="L509"> <span class="tok-kw">if</span> (has_neon) <span class="tok-kw">return</span> ChaChaVecImpl(rounds_nb, <span class="tok-number">4</span>);</span> <span class="line" id="L510"> <span class="tok-kw">return</span> ChaChaNonVecImpl(rounds_nb);</span> <span class="line" id="L511"> },</span> <span class="line" id="L512"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> ChaChaNonVecImpl(rounds_nb),</span> <span class="line" id="L513"> }</span> <span class="line" id="L514">}</span> <span class="line" id="L515"></span> <span class="line" id="L516"><span class="tok-kw">fn</span> <span class="tok-fn">keyToWords</span>(key: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>) [<span class="tok-number">8</span>]<span class="tok-type">u32</span> {</span> <span class="line" id="L517"> <span class="tok-kw">var</span> k: [<span class="tok-number">8</span>]<span class="tok-type">u32</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L518"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..<span class="tok-number">8</span>) \|i\| {</span> <span class="line" id="L519"> k[i] = mem.readIntLittle(<span class="tok-type">u32</span>, key[i * <span class="tok-number">4</span> ..][<span class="tok-number">0</span>..<span class="tok-number">4</span>]);</span> <span class="line" id="L520"> }</span> <span class="line" id="L521"> <span class="tok-kw">return</span> k;</span> <span class="line" id="L522">}</span> <span class="line" id="L523"></span> <span class="line" id="L524"><span class="tok-kw">fn</span> <span class="tok-fn">extend</span>(key: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>, nonce: [<span class="tok-number">24</span>]<span class="tok-type">u8</span>, <span class="tok-kw">comptime</span> rounds_nb: <span class="tok-type">usize</span>) <span class="tok-kw">struct</span> { key: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>, nonce: [<span class="tok-number">12</span>]<span class="tok-type">u8</span> } {</span> <span class="line" id="L525"> <span class="tok-kw">var</span> subnonce: [<span class="tok-number">12</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L526"> <span class="tok-builtin">@memset</span>(subnonce[<span class="tok-number">0</span>..<span class="tok-number">4</span>], <span class="tok-number">0</span>);</span> <span class="line" id="L527"> subnonce[<span class="tok-number">4</span>..].* = nonce[<span class="tok-number">16</span>..<span class="tok-number">24</span>].;</span> <span class="line" id="L528"> <span class="tok-kw">return</span> .{</span> <span class="line" id="L529"> .key = ChaChaImpl(rounds_nb).hchacha20(nonce[<span class="tok-number">0</span>..<span class="tok-number">16</span>]., key),</span> <span class="line" id="L530"> .nonce = subnonce,</span> <span class="line" id="L531"> };</span> <span class="line" id="L532">}</span> <span class="line" id="L533"></span> <span class="line" id="L534"><span class="tok-kw">fn</span> <span class="tok-fn">ChaChaIETF</span>(<span class="tok-kw">comptime</span> rounds_nb: <span class="tok-type">usize</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L535"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L536"> <span class="tok-comment">/// Nonce length in bytes.</span></span> <span class="line" id="L537"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> nonce_length = <span class="tok-number">12</span>;</span> <span class="line" id="L538"> <span class="tok-comment">/// Key length in bytes.</span></span> <span class="line" id="L539"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> key_length = <span class="tok-number">32</span>;</span> <span class="line" id="L540"> <span class="tok-comment">/// Block length in bytes.</span></span> <span class="line" id="L541"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> block_length = <span class="tok-number">64</span>;</span> <span class="line" id="L542"></span> <span class="line" id="L543"> <span class="tok-comment">/// Add the output of the ChaCha20 stream cipher to `in` and stores the result into `out`.</span></span> <span class="line" id="L544"> <span class="tok-comment">/// WARNING: This function doesn't provide authenticated encryption.</span></span> <span class="line" id="L545"> <span class="tok-comment">/// Using the AEAD or one of the `box` versions is usually preferred.</span></span> <span class="line" id="L546"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">xor</span>(out: []<span class="tok-type">u8</span>, in: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, counter: <span class="tok-type">u32</span>, key: [key_length]<span class="tok-type">u8</span>, nonce: [nonce_length]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L547"> assert(in.len == out.len);</span> <span class="line" id="L548"> assert(in.len <= <span class="tok-number">64</span> * (<span class="tok-builtin">@as</span>(<span class="tok-type">u39</span>, <span class="tok-number">1</span> << <span class="tok-number">32</span>) - counter));</span> <span class="line" id="L549"></span> <span class="line" id="L550"> <span class="tok-kw">var</span> d: [<span class="tok-number">4</span>]<span class="tok-type">u32</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L551"> d[<span class="tok-number">0</span>] = counter;</span> <span class="line" id="L552"> d[<span class="tok-number">1</span>] = mem.readIntLittle(<span class="tok-type">u32</span>, nonce[<span class="tok-number">0</span>..<span class="tok-number">4</span>]);</span> <span class="line" id="L553"> d[<span class="tok-number">2</span>] = mem.readIntLittle(<span class="tok-type">u32</span>, nonce[<span class="tok-number">4</span>..<span class="tok-number">8</span>]);</span> <span class="line" id="L554"> d[<span class="tok-number">3</span>] = mem.readIntLittle(<span class="tok-type">u32</span>, nonce[<span class="tok-number">8</span>..<span class="tok-number">12</span>]);</span> <span class="line" id="L555"> ChaChaImpl(rounds_nb).chacha20Xor(out, in, keyToWords(key), d, <span class="tok-null">false</span>);</span> <span class="line" id="L556"> }</span> <span class="line" id="L557"></span> <span class="line" id="L558"> <span class="tok-comment">/// Write the output of the ChaCha20 stream cipher into `out`.</span></span> <span class="line" id="L559"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">stream</span>(out: []<span class="tok-type">u8</span>, counter: <span class="tok-type">u32</span>, key: [key_length]<span class="tok-type">u8</span>, nonce: [nonce_length]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L560"> assert(out.len <= <span class="tok-number">64</span> * (<span class="tok-builtin">@as</span>(<span class="tok-type">u39</span>, <span class="tok-number">1</span> << <span class="tok-number">32</span>) - counter));</span> <span class="line" id="L561"></span> <span class="line" id="L562"> <span class="tok-kw">var</span> d: [<span class="tok-number">4</span>]<span class="tok-type">u32</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L563"> d[<span class="tok-number">0</span>] = counter;</span> <span class="line" id="L564"> d[<span class="tok-number">1</span>] = mem.readIntLittle(<span class="tok-type">u32</span>, nonce[<span class="tok-number">0</span>..<span class="tok-number">4</span>]);</span> <span class="line" id="L565"> d[<span class="tok-number">2</span>] = mem.readIntLittle(<span class="tok-type">u32</span>, nonce[<span class="tok-number">4</span>..<span class="tok-number">8</span>]);</span> <span class="line" id="L566"> d[<span class="tok-number">3</span>] = mem.readIntLittle(<span class="tok-type">u32</span>, nonce[<span class="tok-number">8</span>..<span class="tok-number">12</span>]);</span> <span class="line" id="L567"> ChaChaImpl(rounds_nb).chacha20Stream(out, keyToWords(key), d, <span class="tok-null">false</span>);</span> <span class="line" id="L568"> }</span> <span class="line" id="L569"> };</span> <span class="line" id="L570">}</span> <span class="line" id="L571"></span> <span class="line" id="L572"><span class="tok-kw">fn</span> <span class="tok-fn">ChaChaWith64BitNonce</span>(<span class="tok-kw">comptime</span> rounds_nb: <span class="tok-type">usize</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L573"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L574"> <span class="tok-comment">/// Nonce length in bytes.</span></span> <span class="line" id="L575"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> nonce_length = <span class="tok-number">8</span>;</span> <span class="line" id="L576"> <span class="tok-comment">/// Key length in bytes.</span></span> <span class="line" id="L577"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> key_length = <span class="tok-number">32</span>;</span> <span class="line" id="L578"> <span class="tok-comment">/// Block length in bytes.</span></span> <span class="line" id="L579"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> block_length = <span class="tok-number">64</span>;</span> <span class="line" id="L580"></span> <span class="line" id="L581"> <span class="tok-comment">/// Add the output of the ChaCha20 stream cipher to `in` and stores the result into `out`.</span></span> <span class="line" id="L582"> <span class="tok-comment">/// WARNING: This function doesn't provide authenticated encryption.</span></span> <span class="line" id="L583"> <span class="tok-comment">/// Using the AEAD or one of the `box` versions is usually preferred.</span></span> <span class="line" id="L584"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">xor</span>(out: []<span class="tok-type">u8</span>, in: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, counter: <span class="tok-type">u64</span>, key: [key_length]<span class="tok-type">u8</span>, nonce: [nonce_length]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L585"> assert(in.len == out.len);</span> <span class="line" id="L586"> assert(in.len <= <span class="tok-number">64</span> * (<span class="tok-builtin">@as</span>(<span class="tok-type">u71</span>, <span class="tok-number">1</span> << <span class="tok-number">64</span>) - counter));</span> <span class="line" id="L587"></span> <span class="line" id="L588"> <span class="tok-kw">const</span> k = keyToWords(key);</span> <span class="line" id="L589"> <span class="tok-kw">var</span> c: [<span class="tok-number">4</span>]<span class="tok-type">u32</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L590"> c[<span class="tok-number">0</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@truncate</span>(counter));</span> <span class="line" id="L591"> c[<span class="tok-number">1</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@truncate</span>(counter >> <span class="tok-number">32</span>));</span> <span class="line" id="L592"> c[<span class="tok-number">2</span>] = mem.readIntLittle(<span class="tok-type">u32</span>, nonce[<span class="tok-number">0</span>..<span class="tok-number">4</span>]);</span> <span class="line" id="L593"> c[<span class="tok-number">3</span>] = mem.readIntLittle(<span class="tok-type">u32</span>, nonce[<span class="tok-number">4</span>..<span class="tok-number">8</span>]);</span> <span class="line" id="L594"> ChaChaImpl(rounds_nb).chacha20Xor(out, in, k, c, <span class="tok-null">true</span>);</span> <span class="line" id="L595"> }</span> <span class="line" id="L596"></span> <span class="line" id="L597"> <span class="tok-comment">/// Write the output of the ChaCha20 stream cipher into `out`.</span></span> <span class="line" id="L598"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">stream</span>(out: []<span class="tok-type">u8</span>, counter: <span class="tok-type">u32</span>, key: [key_length]<span class="tok-type">u8</span>, nonce: [nonce_length]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L599"> assert(out.len <= <span class="tok-number">64</span> * (<span class="tok-builtin">@as</span>(<span class="tok-type">u71</span>, <span class="tok-number">1</span> << <span class="tok-number">64</span>) - counter));</span> <span class="line" id="L600"></span> <span class="line" id="L601"> <span class="tok-kw">const</span> k = keyToWords(key);</span> <span class="line" id="L602"> <span class="tok-kw">var</span> c: [<span class="tok-number">4</span>]<span class="tok-type">u32</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L603"> c[<span class="tok-number">0</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@truncate</span>(counter));</span> <span class="line" id="L604"> c[<span class="tok-number">1</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@truncate</span>(counter >> <span class="tok-number">32</span>));</span> <span class="line" id="L605"> c[<span class="tok-number">2</span>] = mem.readIntLittle(<span class="tok-type">u32</span>, nonce[<span class="tok-number">0</span>..<span class="tok-number">4</span>]);</span> <span class="line" id="L606"> c[<span class="tok-number">3</span>] = mem.readIntLittle(<span class="tok-type">u32</span>, nonce[<span class="tok-number">4</span>..<span class="tok-number">8</span>]);</span> <span class="line" id="L607"> ChaChaImpl(rounds_nb).chacha20Stream(out, k, c, <span class="tok-null">true</span>);</span> <span class="line" id="L608"> }</span> <span class="line" id="L609"> };</span> <span class="line" id="L610">}</span> <span class="line" id="L611"></span> <span class="line" id="L612"><span class="tok-kw">fn</span> <span class="tok-fn">XChaChaIETF</span>(<span class="tok-kw">comptime</span> rounds_nb: <span class="tok-type">usize</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L613"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L614"> <span class="tok-comment">/// Nonce length in bytes.</span></span> <span class="line" id="L615"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> nonce_length = <span class="tok-number">24</span>;</span> <span class="line" id="L616"> <span class="tok-comment">/// Key length in bytes.</span></span> <span class="line" id="L617"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> key_length = <span class="tok-number">32</span>;</span> <span class="line" id="L618"> <span class="tok-comment">/// Block length in bytes.</span></span> <span class="line" id="L619"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> block_length = <span class="tok-number">64</span>;</span> <span class="line" id="L620"></span> <span class="line" id="L621"> <span class="tok-comment">/// Add the output of the XChaCha20 stream cipher to `in` and stores the result into `out`.</span></span> <span class="line" id="L622"> <span class="tok-comment">/// WARNING: This function doesn't provide authenticated encryption.</span></span> <span class="line" id="L623"> <span class="tok-comment">/// Using the AEAD or one of the `box` versions is usually preferred.</span></span> <span class="line" id="L624"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">xor</span>(out: []<span class="tok-type">u8</span>, in: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, counter: <span class="tok-type">u32</span>, key: [key_length]<span class="tok-type">u8</span>, nonce: [nonce_length]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L625"> <span class="tok-kw">const</span> extended = extend(key, nonce, rounds_nb);</span> <span class="line" id="L626"> ChaChaIETF(rounds_nb).xor(out, in, counter, extended.key, extended.nonce);</span> <span class="line" id="L627"> }</span> <span class="line" id="L628"></span> <span class="line" id="L629"> <span class="tok-comment">/// Write the output of the XChaCha20 stream cipher into `out`.</span></span> <span class="line" id="L630"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">stream</span>(out: []<span class="tok-type">u8</span>, counter: <span class="tok-type">u32</span>, key: [key_length]<span class="tok-type">u8</span>, nonce: [nonce_length]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L631"> <span class="tok-kw">const</span> extended = extend(key, nonce, rounds_nb);</span> <span class="line" id="L632"> ChaChaIETF(rounds_nb).xor(out, counter, extended.key, extended.nonce);</span> <span class="line" id="L633"> }</span> <span class="line" id="L634"> };</span> <span class="line" id="L635">}</span> <span class="line" id="L636"></span> <span class="line" id="L637"><span class="tok-kw">fn</span> <span class="tok-fn">ChaChaPoly1305</span>(<span class="tok-kw">comptime</span> rounds_nb: <span class="tok-type">usize</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L638"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L639"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> tag_length = <span class="tok-number">16</span>;</span> <span class="line" id="L640"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> nonce_length = <span class="tok-number">12</span>;</span> <span class="line" id="L641"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> key_length = <span class="tok-number">32</span>;</span> <span class="line" id="L642"></span> <span class="line" id="L643"> <span class="tok-comment">/// c: ciphertext: output buffer should be of size m.len</span></span> <span class="line" id="L644"> <span class="tok-comment">/// tag: authentication tag: output MAC</span></span> <span class="line" id="L645"> <span class="tok-comment">/// m: message</span></span> <span class="line" id="L646"> <span class="tok-comment">/// ad: Associated Data</span></span> <span class="line" id="L647"> <span class="tok-comment">/// npub: public nonce</span></span> <span class="line" id="L648"> <span class="tok-comment">/// k: private key</span></span> <span class="line" id="L649"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">encrypt</span>(c: []<span class="tok-type">u8</span>, tag: [tag_length]<span class="tok-type">u8</span>, m: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, ad: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, npub: [nonce_length]<span class="tok-type">u8</span>, k: [key_length]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L650"> assert(c.len == m.len);</span> <span class="line" id="L651"> assert(m.len <= <span class="tok-number">64</span> (<span class="tok-builtin">@as</span>(<span class="tok-type">u39</span>, <span class="tok-number">1</span> << <span class="tok-number">32</span>) - <span class="tok-number">1</span>));</span> <span class="line" id="L652"></span> <span class="line" id="L653"> <span class="tok-kw">var</span> polyKey = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} <span class="tok-number">32</span>;</span> <span class="line" id="L654"> ChaChaIETF(rounds_nb).xor(polyKey[<span class="tok-number">0</span>..], polyKey[<span class="tok-number">0</span>..], <span class="tok-number">0</span>, k, npub);</span> <span class="line" id="L655"></span> <span class="line" id="L656"> ChaChaIETF(rounds_nb).xor(c[<span class="tok-number">0</span>..m.len], m, <span class="tok-number">1</span>, k, npub);</span> <span class="line" id="L657"></span> <span class="line" id="L658"> <span class="tok-kw">var</span> mac = Poly1305.init(polyKey[<span class="tok-number">0</span>..]);</span> <span class="line" id="L659"> mac.update(ad);</span> <span class="line" id="L660"> <span class="tok-kw">if</span> (ad.len % <span class="tok-number">16</span> != <span class="tok-number">0</span>) {</span> <span class="line" id="L661"> <span class="tok-kw">const</span> zeros = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} <span class="tok-number">16</span>;</span> <span class="line" id="L662"> <span class="tok-kw">const</span> padding = <span class="tok-number">16</span> - (ad.len % <span class="tok-number">16</span>);</span> <span class="line" id="L663"> mac.update(zeros[<span class="tok-number">0</span>..padding]);</span> <span class="line" id="L664"> }</span> <span class="line" id="L665"> mac.update(c[<span class="tok-number">0</span>..m.len]);</span> <span class="line" id="L666"> <span class="tok-kw">if</span> (m.len % <span class="tok-number">16</span> != <span class="tok-number">0</span>) {</span> <span class="line" id="L667"> <span class="tok-kw">const</span> zeros = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} <span class="tok-number">16</span>;</span> <span class="line" id="L668"> <span class="tok-kw">const</span> padding = <span class="tok-number">16</span> - (m.len % <span class="tok-number">16</span>);</span> <span class="line" id="L669"> mac.update(zeros[<span class="tok-number">0</span>..padding]);</span> <span class="line" id="L670"> }</span> <span class="line" id="L671"> <span class="tok-kw">var</span> lens: [<span class="tok-number">16</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L672"> mem.writeIntLittle(<span class="tok-type">u64</span>, lens[<span class="tok-number">0</span>..<span class="tok-number">8</span>], ad.len);</span> <span class="line" id="L673"> mem.writeIntLittle(<span class="tok-type">u64</span>, lens[<span class="tok-number">8</span>..<span class="tok-number">16</span>], m.len);</span> <span class="line" id="L674"> mac.update(lens[<span class="tok-number">0</span>..]);</span> <span class="line" id="L675"> mac.final(tag);</span> <span class="line" id="L676"> }</span> <span class="line" id="L677"></span> <span class="line" id="L678"> <span class="tok-comment">/// m: message: output buffer should be of size c.len</span></span> <span class="line" id="L679"> <span class="tok-comment">/// c: ciphertext</span></span> <span class="line" id="L680"> <span class="tok-comment">/// tag: authentication tag</span></span> <span class="line" id="L681"> <span class="tok-comment">/// ad: Associated Data</span></span> <span class="line" id="L682"> <span class="tok-comment">/// npub: public nonce</span></span> <span class="line" id="L683"> <span class="tok-comment">/// k: private key</span></span> <span class="line" id="L684"> <span class="tok-comment">/// NOTE: the check of the authentication tag is currently not done in constant time</span></span> <span class="line" id="L685"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">decrypt</span>(m: []<span class="tok-type">u8</span>, c: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, tag: [tag_length]<span class="tok-type">u8</span>, ad: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, npub: [nonce_length]<span class="tok-type">u8</span>, k: [key_length]<span class="tok-type">u8</span>) AuthenticationError!<span class="tok-type">void</span> {</span> <span class="line" id="L686"> assert(c.len == m.len);</span> <span class="line" id="L687"></span> <span class="line" id="L688"> <span class="tok-kw">var</span> polyKey = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} <span class="tok-number">32</span>;</span> <span class="line" id="L689"> ChaChaIETF(rounds_nb).xor(polyKey[<span class="tok-number">0</span>..], polyKey[<span class="tok-number">0</span>..], <span class="tok-number">0</span>, k, npub);</span> <span class="line" id="L690"></span> <span class="line" id="L691"> <span class="tok-kw">var</span> mac = Poly1305.init(polyKey[<span class="tok-number">0</span>..]);</span> <span class="line" id="L692"></span> <span class="line" id="L693"> mac.update(ad);</span> <span class="line" id="L694"> <span class="tok-kw">if</span> (ad.len % <span class="tok-number">16</span> != <span class="tok-number">0</span>) {</span> <span class="line" id="L695"> <span class="tok-kw">const</span> zeros = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} <span class="tok-number">16</span>;</span> <span class="line" id="L696"> <span class="tok-kw">const</span> padding = <span class="tok-number">16</span> - (ad.len % <span class="tok-number">16</span>);</span> <span class="line" id="L697"> mac.update(zeros[<span class="tok-number">0</span>..padding]);</span> <span class="line" id="L698"> }</span> <span class="line" id="L699"> mac.update(c);</span> <span class="line" id="L700"> <span class="tok-kw">if</span> (c.len % <span class="tok-number">16</span> != <span class="tok-number">0</span>) {</span> <span class="line" id="L701"> <span class="tok-kw">const</span> zeros = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} <span class="tok-number">16</span>;</span> <span class="line" id="L702"> <span class="tok-kw">const</span> padding = <span class="tok-number">16</span> - (c.len % <span class="tok-number">16</span>);</span> <span class="line" id="L703"> mac.update(zeros[<span class="tok-number">0</span>..padding]);</span> <span class="line" id="L704"> }</span> <span class="line" id="L705"> <span class="tok-kw">var</span> lens: [<span class="tok-number">16</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L706"> mem.writeIntLittle(<span class="tok-type">u64</span>, lens[<span class="tok-number">0</span>..<span class="tok-number">8</span>], ad.len);</span> <span class="line" id="L707"> mem.writeIntLittle(<span class="tok-type">u64</span>, lens[<span class="tok-number">8</span>..<span class="tok-number">16</span>], c.len);</span> <span class="line" id="L708"> mac.update(lens[<span class="tok-number">0</span>..]);</span> <span class="line" id="L709"> <span class="tok-kw">var</span> computedTag: [<span class="tok-number">16</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L710"> mac.final(computedTag[<span class="tok-number">0</span>..]);</span> <span class="line" id="L711"></span> <span class="line" id="L712"> <span class="tok-kw">var</span> acc: <span class="tok-type">u8</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L713"> <span class="tok-kw">for</span> (computedTag, <span class="tok-number">0</span>..) \|_, i\| {</span> <span class="line" id="L714"> acc \|= computedTag[i] ^ tag[i];</span> <span class="line" id="L715"> }</span> <span class="line" id="L716"> <span class="tok-kw">if</span> (acc != <span class="tok-number">0</span>) {</span> <span class="line" id="L717"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.AuthenticationFailed;</span> <span class="line" id="L718"> }</span> <span class="line" id="L719"> ChaChaIETF(rounds_nb).xor(m[<span class="tok-number">0</span>..c.len], c, <span class="tok-number">1</span>, k, npub);</span> <span class="line" id="L720"> }</span> <span class="line" id="L721"> };</span> <span class="line" id="L722">}</span> <span class="line" id="L723"></span> <span class="line" id="L724"><span class="tok-kw">fn</span> <span class="tok-fn">XChaChaPoly1305</span>(<span class="tok-kw">comptime</span> rounds_nb: <span class="tok-type">usize</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L725"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L726"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> tag_length = <span class="tok-number">16</span>;</span> <span class="line" id="L727"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> nonce_length = <span class="tok-number">24</span>;</span> <span class="line" id="L728"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> key_length = <span class="tok-number">32</span>;</span> <span class="line" id="L729"></span> <span class="line" id="L730"> <span class="tok-comment">/// c: ciphertext: output buffer should be of size m.len</span></span> <span class="line" id="L731"> <span class="tok-comment">/// tag: authentication tag: output MAC</span></span> <span class="line" id="L732"> <span class="tok-comment">/// m: message</span></span> <span class="line" id="L733"> <span class="tok-comment">/// ad: Associated Data</span></span> <span class="line" id="L734"> <span class="tok-comment">/// npub: public nonce</span></span> <span class="line" id="L735"> <span class="tok-comment">/// k: private key</span></span> <span class="line" id="L736"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">encrypt</span>(c: []<span class="tok-type">u8</span>, tag: [tag_length]<span class="tok-type">u8</span>, m: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, ad: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, npub: [nonce_length]<span class="tok-type">u8</span>, k: [key_length]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L737"> <span class="tok-kw">const</span> extended = extend(k, npub, rounds_nb);</span> <span class="line" id="L738"> <span class="tok-kw">return</span> ChaChaPoly1305(rounds_nb).encrypt(c, tag, m, ad, extended.nonce, extended.key);</span> <span class="line" id="L739"> }</span> <span class="line" id="L740"></span> <span class="line" id="L741"> <span class="tok-comment">/// m: message: output buffer should be of size c.len</span></span> <span class="line" id="L742"> <span class="tok-comment">/// c: ciphertext</span></span> <span class="line" id="L743"> <span class="tok-comment">/// tag: authentication tag</span></span> <span class="line" id="L744"> <span class="tok-comment">/// ad: Associated Data</span></span> <span class="line" id="L745"> <span class="tok-comment">/// npub: public nonce</span></span> <span class="line" id="L746"> <span class="tok-comment">/// k: private key</span></span> <span class="line" id="L747"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">decrypt</span>(m: []<span class="tok-type">u8</span>, c: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, tag: [tag_length]<span class="tok-type">u8</span>, ad: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, npub: [nonce_length]<span class="tok-type">u8</span>, k: [key_length]<span class="tok-type">u8</span>) AuthenticationError!<span class="tok-type">void</span> {</span> <span class="line" id="L748"> <span class="tok-kw">const</span> extended = extend(k, npub, rounds_nb);</span> <span class="line" id="L749"> <span class="tok-kw">return</span> ChaChaPoly1305(rounds_nb).decrypt(m, c, tag, ad, extended.nonce, extended.key);</span> <span class="line" id="L750"> }</span> <span class="line" id="L751"> };</span> <span class="line" id="L752">}</span> <span class="line" id="L753"></span> <span class="line" id="L754"><span class="tok-kw">test</span> <span class="tok-str">"chacha20 AEAD API"</span> {</span> <span class="line" id="L755"> <span class="tok-kw">const</span> aeads = [_]<span class="tok-type">type</span>{ ChaCha20Poly1305, XChaCha20Poly1305 };</span> <span class="line" id="L756"> <span class="tok-kw">const</span> m = <span class="tok-str">"Ladies and Gentlemen of the class of '99: If I could offer you only one tip for the future, sunscreen would be it."</span>;</span> <span class="line" id="L757"> <span class="tok-kw">const</span> ad = <span class="tok-str">"Additional data"</span>;</span> <span class="line" id="L758"></span> <span class="line" id="L759"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (aeads) \|aead\| {</span> <span class="line" id="L760"> <span class="tok-kw">const</span> key = [_]<span class="tok-type">u8</span>{<span class="tok-number">69</span>} * aead.key_length;</span> <span class="line" id="L761"> <span class="tok-kw">const</span> nonce = [_]<span class="tok-type">u8</span>{<span class="tok-number">42</span>} ** aead.nonce_length;</span> <span class="line" id="L762"> <span class="tok-kw">var</span> c: [m.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L763"> <span class="tok-kw">var</span> tag: [aead.tag_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L764"> <span class="tok-kw">var</span> out: [m.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L765"></span> <span class="line" id="L766"> aead.encrypt(c[<span class="tok-number">0</span>..], tag[<span class="tok-number">0</span>..], m, ad, nonce, key);</span> <span class="line" id="L767"> <span class="tok-kw">try</span> aead.decrypt(out[<span class="tok-number">0</span>..], c[<span class="tok-number">0</span>..], tag, ad[<span class="tok-number">0</span>..], nonce, key);</span> <span class="line" id="L768"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, out[<span class="tok-number">0</span>..], m);</span> <span class="line" id="L769"> c[<span class="tok-number">0</span>] +%= <span class="tok-number">1</span>;</span> <span class="line" id="L770"> <span class="tok-kw">try</span> testing.expectError(<span class="tok-kw">error</span>.AuthenticationFailed, aead.decrypt(out[<span class="tok-number">0</span>..], c[<span class="tok-number">0</span>..], tag, ad[<span class="tok-number">0</span>..], nonce, key));</span> <span class="line" id="L771"> }</span> <span class="line" id="L772">}</span> <span class="line" id="L773"></span> <span class="line" id="L774"><span class="tok-comment">// https://tools.ietf.org/html/rfc7539#section-2.4.2</span> </span> <span class="line" id="L775"><span class="tok-kw">test</span> <span class="tok-str">"crypto.chacha20 test vector sunscreen"</span> {</span> <span class="line" id="L776"> <span class="tok-kw">const</span> expected_result = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L777"> <span class="tok-number">0x6e</span>, <span class="tok-number">0x2e</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x9a</span>, <span class="tok-number">0x25</span>, <span class="tok-number">0x68</span>, <span class="tok-number">0xf9</span>, <span class="tok-number">0x80</span>,</span> <span class="line" id="L778"> <span class="tok-number">0x41</span>, <span class="tok-number">0xba</span>, <span class="tok-number">0x07</span>, <span class="tok-number">0x28</span>, <span class="tok-number">0xdd</span>, <span class="tok-number">0x0d</span>, <span class="tok-number">0x69</span>, <span class="tok-number">0x81</span>,</span> <span class="line" id="L779"> <span class="tok-number">0xe9</span>, <span class="tok-number">0x7e</span>, <span class="tok-number">0x7a</span>, <span class="tok-number">0xec</span>, <span class="tok-number">0x1d</span>, <span class="tok-number">0x43</span>, <span class="tok-number">0x60</span>, <span class="tok-number">0xc2</span>,</span> <span class="line" id="L780"> <span class="tok-number">0x0a</span>, <span class="tok-number">0x27</span>, <span class="tok-number">0xaf</span>, <span class="tok-number">0xcc</span>, <span class="tok-number">0xfd</span>, <span class="tok-number">0x9f</span>, <span class="tok-number">0xae</span>, <span class="tok-number">0x0b</span>,</span> <span class="line" id="L781"> <span class="tok-number">0xf9</span>, <span class="tok-number">0x1b</span>, <span class="tok-number">0x65</span>, <span class="tok-number">0xc5</span>, <span class="tok-number">0x52</span>, <span class="tok-number">0x47</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0xab</span>,</span> <span class="line" id="L782"> <span class="tok-number">0x8f</span>, <span class="tok-number">0x59</span>, <span class="tok-number">0x3d</span>, <span class="tok-number">0xab</span>, <span class="tok-number">0xcd</span>, <span class="tok-number">0x62</span>, <span class="tok-number">0xb3</span>, <span class="tok-number">0x57</span>,</span> <span class="line" id="L783"> <span class="tok-number">0x16</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0xd6</span>, <span class="tok-number">0x24</span>, <span class="tok-number">0xe6</span>, <span class="tok-number">0x51</span>, <span class="tok-number">0x52</span>, <span class="tok-number">0xab</span>,</span> <span class="line" id="L784"> <span class="tok-number">0x8f</span>, <span class="tok-number">0x53</span>, <span class="tok-number">0x0c</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x9f</span>, <span class="tok-number">0x08</span>, <span class="tok-number">0x61</span>, <span class="tok-number">0xd8</span>,</span> <span class="line" id="L785"> <span class="tok-number">0x07</span>, <span class="tok-number">0xca</span>, <span class="tok-number">0x0d</span>, <span class="tok-number">0xbf</span>, <span class="tok-number">0x50</span>, <span class="tok-number">0x0d</span>, <span class="tok-number">0x6a</span>, <span class="tok-number">0x61</span>,</span> <span class="line" id="L786"> <span class="tok-number">0x56</span>, <span class="tok-number">0xa3</span>, <span class="tok-number">0x8e</span>, <span class="tok-number">0x08</span>, <span class="tok-number">0x8a</span>, <span class="tok-number">0x22</span>, <span class="tok-number">0xb6</span>, <span class="tok-number">0x5e</span>,</span> <span class="line" id="L787"> <span class="tok-number">0x52</span>, <span class="tok-number">0xbc</span>, <span class="tok-number">0x51</span>, <span class="tok-number">0x4d</span>, <span class="tok-number">0x16</span>, <span class="tok-number">0xcc</span>, <span class="tok-number">0xf8</span>, <span class="tok-number">0x06</span>,</span> <span class="line" id="L788"> <span class="tok-number">0x81</span>, <span class="tok-number">0x8c</span>, <span class="tok-number">0xe9</span>, <span class="tok-number">0x1a</span>, <span class="tok-number">0xb7</span>, <span class="tok-number">0x79</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x36</span>,</span> <span class="line" id="L789"> <span class="tok-number">0x5a</span>, <span class="tok-number">0xf9</span>, <span class="tok-number">0x0b</span>, <span class="tok-number">0xbf</span>, <span class="tok-number">0x74</span>, <span class="tok-number">0xa3</span>, <span class="tok-number">0x5b</span>, <span class="tok-number">0xe6</span>,</span> <span class="line" id="L790"> <span class="tok-number">0xb4</span>, <span class="tok-number">0x0b</span>, <span class="tok-number">0x8e</span>, <span class="tok-number">0xed</span>, <span class="tok-number">0xf2</span>, <span class="tok-number">0x78</span>, <span class="tok-number">0x5e</span>, <span class="tok-number">0x42</span>,</span> <span class="line" id="L791"> <span class="tok-number">0x87</span>, <span class="tok-number">0x4d</span>,</span> <span class="line" id="L792"> };</span> <span class="line" id="L793"> <span class="tok-kw">const</span> m = <span class="tok-str">"Ladies and Gentlemen of the class of '99: If I could offer you only one tip for the future, sunscreen would be it."</span>;</span> <span class="line" id="L794"> <span class="tok-kw">var</span> result: [<span class="tok-number">114</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L795"> <span class="tok-kw">const</span> key = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L796"> <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>,</span> <span class="line" id="L797"> <span class="tok-number">8</span>, <span class="tok-number">9</span>, <span class="tok-number">10</span>, <span class="tok-number">11</span>, <span class="tok-number">12</span>, <span class="tok-number">13</span>, <span class="tok-number">14</span>, <span class="tok-number">15</span>,</span> <span class="line" id="L798"> <span class="tok-number">16</span>, <span class="tok-number">17</span>, <span class="tok-number">18</span>, <span class="tok-number">19</span>, <span class="tok-number">20</span>, <span class="tok-number">21</span>, <span class="tok-number">22</span>, <span class="tok-number">23</span>,</span> <span class="line" id="L799"> <span class="tok-number">24</span>, <span class="tok-number">25</span>, <span class="tok-number">26</span>, <span class="tok-number">27</span>, <span class="tok-number">28</span>, <span class="tok-number">29</span>, <span class="tok-number">30</span>, <span class="tok-number">31</span>,</span> <span class="line" id="L800"> };</span> <span class="line" id="L801"> <span class="tok-kw">const</span> nonce = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L802"> <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L803"> <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0x4a</span>,</span> <span class="line" id="L804"> <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L805"> };</span> <span class="line" id="L806"></span> <span class="line" id="L807"> ChaCha20IETF.xor(result[<span class="tok-number">0</span>..], m[<span class="tok-number">0</span>..], <span class="tok-number">1</span>, key, nonce);</span> <span class="line" id="L808"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, &expected_result, &result);</span> <span class="line" id="L809"></span> <span class="line" id="L810"> <span class="tok-kw">var</span> m2: [<span class="tok-number">114</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L811"> ChaCha20IETF.xor(m2[<span class="tok-number">0</span>..], result[<span class="tok-number">0</span>..], <span class="tok-number">1</span>, key, nonce);</span> <span class="line" id="L812"> <span class="tok-kw">try</span> testing.expect(mem.order(<span class="tok-type">u8</span>, m, &m2) == .eq);</span> <span class="line" id="L813">}</span> <span class="line" id="L814"></span> <span class="line" id="L815"><span class="tok-comment">// https://tools.ietf.org/html/draft-agl-tls-chacha20poly1305-04#section-7</span> </span> <span class="line" id="L816"><span class="tok-kw">test</span> <span class="tok-str">"crypto.chacha20 test vector 1"</span> {</span> <span class="line" id="L817"> <span class="tok-kw">const</span> expected_result = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L818"> <span class="tok-number">0x76</span>, <span class="tok-number">0xb8</span>, <span class="tok-number">0xe0</span>, <span class="tok-number">0xad</span>, <span class="tok-number">0xa0</span>, <span class="tok-number">0xf1</span>, <span class="tok-number">0x3d</span>, <span class="tok-number">0x90</span>,</span> <span class="line" id="L819"> <span class="tok-number">0x40</span>, <span class="tok-number">0x5d</span>, <span class="tok-number">0x6a</span>, <span class="tok-number">0xe5</span>, <span class="tok-number">0x53</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0xbd</span>, <span class="tok-number">0x28</span>,</span> <span class="line" id="L820"> <span class="tok-number">0xbd</span>, <span class="tok-number">0xd2</span>, <span class="tok-number">0x19</span>, <span class="tok-number">0xb8</span>, <span class="tok-number">0xa0</span>, <span class="tok-number">0x8d</span>, <span class="tok-number">0xed</span>, <span class="tok-number">0x1a</span>,</span> <span class="line" id="L821"> <span class="tok-number">0xa8</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0xef</span>, <span class="tok-number">0xcc</span>, <span class="tok-number">0x8b</span>, <span class="tok-number">0x77</span>, <span class="tok-number">0x0d</span>, <span class="tok-number">0xc7</span>,</span> <span class="line" id="L822"> <span class="tok-number">0xda</span>, <span class="tok-number">0x41</span>, <span class="tok-number">0x59</span>, <span class="tok-number">0x7c</span>, <span class="tok-number">0x51</span>, <span class="tok-number">0x57</span>, <span class="tok-number">0x48</span>, <span class="tok-number">0x8d</span>,</span> <span class="line" id="L823"> <span class="tok-number">0x77</span>, <span class="tok-number">0x24</span>, <span class="tok-number">0xe0</span>, <span class="tok-number">0x3f</span>, <span class="tok-number">0xb8</span>, <span class="tok-number">0xd8</span>, <span class="tok-number">0x4a</span>, <span class="tok-number">0x37</span>,</span> <span class="line" id="L824"> <span class="tok-number">0x6a</span>, <span class="tok-number">0x43</span>, <span class="tok-number">0xb8</span>, <span class="tok-number">0xf4</span>, <span class="tok-number">0x15</span>, <span class="tok-number">0x18</span>, <span class="tok-number">0xa1</span>, <span class="tok-number">0x1c</span>,</span> <span class="line" id="L825"> <span class="tok-number">0xc3</span>, <span class="tok-number">0x87</span>, <span class="tok-number">0xb6</span>, <span class="tok-number">0x69</span>, <span class="tok-number">0xb2</span>, <span class="tok-number">0xee</span>, <span class="tok-number">0x65</span>, <span class="tok-number">0x86</span>,</span> <span class="line" id="L826"> };</span> <span class="line" id="L827"> <span class="tok-kw">const</span> m = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L828"> <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>,</span> <span class="line" id="L829"> <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>,</span> <span class="line" id="L830"> <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>,</span> <span class="line" id="L831"> <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>,</span> <span class="line" id="L832"> <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>,</span> <span class="line" id="L833"> <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>,</span> <span class="line" id="L834"> <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>,</span> <span class="line" id="L835"> <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>,</span> <span class="line" id="L836"> };</span> <span class="line" id="L837"> <span class="tok-kw">var</span> result: [<span class="tok-number">64</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L838"> <span class="tok-kw">const</span> key = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L839"> <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L840"> <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L841"> <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L842"> <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L843"> };</span> <span class="line" id="L844"> <span class="tok-kw">const</span> nonce = [_]<span class="tok-type">u8</span>{ <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span> };</span> <span class="line" id="L845"></span> <span class="line" id="L846"> ChaCha20With64BitNonce.xor(result[<span class="tok-number">0</span>..], m[<span class="tok-number">0</span>..], <span class="tok-number">0</span>, key, nonce);</span> <span class="line" id="L847"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, &expected_result, &result);</span> <span class="line" id="L848">}</span> <span class="line" id="L849"></span> <span class="line" id="L850"><span class="tok-kw">test</span> <span class="tok-str">"crypto.chacha20 test vector 2"</span> {</span> <span class="line" id="L851"> <span class="tok-kw">const</span> expected_result = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L852"> <span class="tok-number">0x45</span>, <span class="tok-number">0x40</span>, <span class="tok-number">0xf0</span>, <span class="tok-number">0x5a</span>, <span class="tok-number">0x9f</span>, <span class="tok-number">0x1f</span>, <span class="tok-number">0xb2</span>, <span class="tok-number">0x96</span>,</span> <span class="line" id="L853"> <span class="tok-number">0xd7</span>, <span class="tok-number">0x73</span>, <span class="tok-number">0x6e</span>, <span class="tok-number">0x7b</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x8e</span>, <span class="tok-number">0x3c</span>, <span class="tok-number">0x96</span>,</span> <span class="line" id="L854"> <span class="tok-number">0xeb</span>, <span class="tok-number">0x4f</span>, <span class="tok-number">0xe1</span>, <span class="tok-number">0x83</span>, <span class="tok-number">0x46</span>, <span class="tok-number">0x88</span>, <span class="tok-number">0xd2</span>, <span class="tok-number">0x60</span>,</span> <span class="line" id="L855"> <span class="tok-number">0x4f</span>, <span class="tok-number">0x45</span>, <span class="tok-number">0x09</span>, <span class="tok-number">0x52</span>, <span class="tok-number">0xed</span>, <span class="tok-number">0x43</span>, <span class="tok-number">0x2d</span>, <span class="tok-number">0x41</span>,</span> <span class="line" id="L856"> <span class="tok-number">0xbb</span>, <span class="tok-number">0xe2</span>, <span class="tok-number">0xa0</span>, <span class="tok-number">0xb6</span>, <span class="tok-number">0xea</span>, <span class="tok-number">0x75</span>, <span class="tok-number">0x66</span>, <span class="tok-number">0xd2</span>,</span> <span class="line" id="L857"> <span class="tok-number">0xa5</span>, <span class="tok-number">0xd1</span>, <span class="tok-number">0xe7</span>, <span class="tok-number">0xe2</span>, <span class="tok-number">0x0d</span>, <span class="tok-number">0x42</span>, <span class="tok-number">0xaf</span>, <span class="tok-number">0x2c</span>,</span> <span class="line" id="L858"> <span class="tok-number">0x53</span>, <span class="tok-number">0xd7</span>, <span class="tok-number">0x92</span>, <span class="tok-number">0xb1</span>, <span class="tok-number">0xc4</span>, <span class="tok-number">0x3f</span>, <span class="tok-number">0xea</span>, <span class="tok-number">0x81</span>,</span> <span class="line" id="L859"> <span class="tok-number">0x7e</span>, <span class="tok-number">0x9a</span>, <span class="tok-number">0xd2</span>, <span class="tok-number">0x75</span>, <span class="tok-number">0xae</span>, <span class="tok-number">0x54</span>, <span class="tok-number">0x69</span>, <span class="tok-number">0x63</span>,</span> <span class="line" id="L860"> };</span> <span class="line" id="L861"> <span class="tok-kw">const</span> m = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L862"> <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>,</span> <span class="line" id="L863"> <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>,</span> <span class="line" id="L864"> <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>,</span> <span class="line" id="L865"> <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>,</span> <span class="line" id="L866"> <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>,</span> <span class="line" id="L867"> <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>,</span> <span class="line" id="L868"> <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>,</span> <span class="line" id="L869"> <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>,</span> <span class="line" id="L870"> };</span> <span class="line" id="L871"> <span class="tok-kw">var</span> result: [<span class="tok-number">64</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L872"> <span class="tok-kw">const</span> key = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L873"> <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L874"> <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L875"> <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L876"> <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>,</span> <span class="line" id="L877"> };</span> <span class="line" id="L878"> <span class="tok-kw">const</span> nonce = [_]<span class="tok-type">u8</span>{ <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span> };</span> <span class="line" id="L879"></span> <span class="line" id="L880"> ChaCha20With64BitNonce.xor(result[<span class="tok-number">0</span>..], m[<span class="tok-number">0</span>..], <span class="tok-number">0</span>, key, nonce);</span> <span class="line" id="L881"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, &expected_result, &result);</span> <span class="line" id="L882">}</span> <span class="line" id="L883"></span> <span class="line" id="L884"><span class="tok-kw">test</span> <span class="tok-str">"crypto.chacha20 test vector 3"</span> {</span> <span class="line" id="L885"> <span class="tok-kw">const</span> expected_result = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L886"> <span class="tok-number">0xde</span>, <span class="tok-number">0x9c</span>, <span class="tok-number">0xba</span>, <span class="tok-number">0x7b</span>, <span class="tok-number">0xf3</span>, <span class="tok-number">0xd6</span>, <span class="tok-number">0x9e</span>, <span class="tok-number">0xf5</span>,</span> <span class="line" id="L887"> <span class="tok-number">0xe7</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0xdc</span>, <span class="tok-number">0x63</span>, <span class="tok-number">0x97</span>, <span class="tok-number">0x3f</span>, <span class="tok-number">0x65</span>, <span class="tok-number">0x3a</span>,</span> <span class="line" id="L888"> <span class="tok-number">0x0b</span>, <span class="tok-number">0x49</span>, <span class="tok-number">0xe0</span>, <span class="tok-number">0x15</span>, <span class="tok-number">0xad</span>, <span class="tok-number">0xbf</span>, <span class="tok-number">0xf7</span>, <span class="tok-number">0x13</span>,</span> <span class="line" id="L889"> <span class="tok-number">0x4f</span>, <span class="tok-number">0xcb</span>, <span class="tok-number">0x7d</span>, <span class="tok-number">0xf1</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x82</span>, <span class="tok-number">0x10</span>, <span class="tok-number">0x31</span>,</span> <span class="line" id="L890"> <span class="tok-number">0xe8</span>, <span class="tok-number">0x5a</span>, <span class="tok-number">0x05</span>, <span class="tok-number">0x02</span>, <span class="tok-number">0x78</span>, <span class="tok-number">0xa7</span>, <span class="tok-number">0x08</span>, <span class="tok-number">0x45</span>,</span> <span class="line" id="L891"> <span class="tok-number">0x27</span>, <span class="tok-number">0x21</span>, <span class="tok-number">0x4f</span>, <span class="tok-number">0x73</span>, <span class="tok-number">0xef</span>, <span class="tok-number">0xc7</span>, <span class="tok-number">0xfa</span>, <span class="tok-number">0x5b</span>,</span> <span class="line" id="L892"> <span class="tok-number">0x52</span>, <span class="tok-number">0x77</span>, <span class="tok-number">0x06</span>, <span class="tok-number">0x2e</span>, <span class="tok-number">0xb7</span>, <span class="tok-number">0xa0</span>, <span class="tok-number">0x43</span>, <span class="tok-number">0x3e</span>,</span> <span class="line" id="L893"> <span class="tok-number">0x44</span>, <span class="tok-number">0x5f</span>, <span class="tok-number">0x41</span>, <span class="tok-number">0xe3</span>,</span> <span class="line" id="L894"> };</span> <span class="line" id="L895"> <span class="tok-kw">const</span> m = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L896"> <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>,</span> <span class="line" id="L897"> <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>,</span> <span class="line" id="L898"> <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>,</span> <span class="line" id="L899"> <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>,</span> <span class="line" id="L900"> <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>,</span> <span class="line" id="L901"> <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>,</span> <span class="line" id="L902"> <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>,</span> <span class="line" id="L903"> <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>,</span> <span class="line" id="L904"> };</span> <span class="line" id="L905"> <span class="tok-kw">var</span> result: [<span class="tok-number">60</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L906"> <span class="tok-kw">const</span> key = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L907"> <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L908"> <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L909"> <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L910"> <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L911"> };</span> <span class="line" id="L912"> <span class="tok-kw">const</span> nonce = [_]<span class="tok-type">u8</span>{ <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span> };</span> <span class="line" id="L913"></span> <span class="line" id="L914"> ChaCha20With64BitNonce.xor(result[<span class="tok-number">0</span>..], m[<span class="tok-number">0</span>..], <span class="tok-number">0</span>, key, nonce);</span> <span class="line" id="L915"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, &expected_result, &result);</span> <span class="line" id="L916">}</span> <span class="line" id="L917"></span> <span class="line" id="L918"><span class="tok-kw">test</span> <span class="tok-str">"crypto.chacha20 test vector 4"</span> {</span> <span class="line" id="L919"> <span class="tok-kw">const</span> expected_result = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L920"> <span class="tok-number">0xef</span>, <span class="tok-number">0x3f</span>, <span class="tok-number">0xdf</span>, <span class="tok-number">0xd6</span>, <span class="tok-number">0xc6</span>, <span class="tok-number">0x15</span>, <span class="tok-number">0x78</span>, <span class="tok-number">0xfb</span>,</span> <span class="line" id="L921"> <span class="tok-number">0xf5</span>, <span class="tok-number">0xcf</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0xbd</span>, <span class="tok-number">0x3d</span>, <span class="tok-number">0xd3</span>, <span class="tok-number">0x3b</span>, <span class="tok-number">0x80</span>,</span> <span class="line" id="L922"> <span class="tok-number">0x09</span>, <span class="tok-number">0x63</span>, <span class="tok-number">0x16</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0xd2</span>, <span class="tok-number">0x1e</span>, <span class="tok-number">0x42</span>, <span class="tok-number">0xac</span>,</span> <span class="line" id="L923"> <span class="tok-number">0x33</span>, <span class="tok-number">0x96</span>, <span class="tok-number">0x0b</span>, <span class="tok-number">0xd1</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0xe5</span>, <span class="tok-number">0x0d</span>, <span class="tok-number">0x32</span>,</span> <span class="line" id="L924"> <span class="tok-number">0x11</span>, <span class="tok-number">0x1e</span>, <span class="tok-number">0x4c</span>, <span class="tok-number">0xaf</span>, <span class="tok-number">0x23</span>, <span class="tok-number">0x7e</span>, <span class="tok-number">0xe5</span>, <span class="tok-number">0x3c</span>,</span> <span class="line" id="L925"> <span class="tok-number">0xa8</span>, <span class="tok-number">0xad</span>, <span class="tok-number">0x64</span>, <span class="tok-number">0x26</span>, <span class="tok-number">0x19</span>, <span class="tok-number">0x4a</span>, <span class="tok-number">0x88</span>, <span class="tok-number">0x54</span>,</span> <span class="line" id="L926"> <span class="tok-number">0x5d</span>, <span class="tok-number">0xdc</span>, <span class="tok-number">0x49</span>, <span class="tok-number">0x7a</span>, <span class="tok-number">0x0b</span>, <span class="tok-number">0x46</span>, <span class="tok-number">0x6e</span>, <span class="tok-number">0x7d</span>,</span> <span class="line" id="L927"> <span class="tok-number">0x6b</span>, <span class="tok-number">0xbd</span>, <span class="tok-number">0xb0</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x1b</span>, <span class="tok-number">0x2f</span>, <span class="tok-number">0x58</span>, <span class="tok-number">0x6b</span>,</span> <span class="line" id="L928"> };</span> <span class="line" id="L929"> <span class="tok-kw">const</span> m = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L930"> <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>,</span> <span class="line" id="L931"> <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>,</span> <span class="line" id="L932"> <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>,</span> <span class="line" id="L933"> <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>,</span> <span class="line" id="L934"> <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>,</span> <span class="line" id="L935"> <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>,</span> <span class="line" id="L936"> <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>,</span> <span class="line" id="L937"> <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>,</span> <span class="line" id="L938"> };</span> <span class="line" id="L939"> <span class="tok-kw">var</span> result: [<span class="tok-number">64</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L940"> <span class="tok-kw">const</span> key = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L941"> <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L942"> <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L943"> <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L944"> <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L945"> };</span> <span class="line" id="L946"> <span class="tok-kw">const</span> nonce = [_]<span class="tok-type">u8</span>{ <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span> };</span> <span class="line" id="L947"></span> <span class="line" id="L948"> ChaCha20With64BitNonce.xor(result[<span class="tok-number">0</span>..], m[<span class="tok-number">0</span>..], <span class="tok-number">0</span>, key, nonce);</span> <span class="line" id="L949"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, &expected_result, &result);</span> <span class="line" id="L950">}</span> <span class="line" id="L951"></span> <span class="line" id="L952"><span class="tok-kw">test</span> <span class="tok-str">"crypto.chacha20 test vector 5"</span> {</span> <span class="line" id="L953"> <span class="tok-kw">const</span> expected_result = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L954"> <span class="tok-number">0xf7</span>, <span class="tok-number">0x98</span>, <span class="tok-number">0xa1</span>, <span class="tok-number">0x89</span>, <span class="tok-number">0xf1</span>, <span class="tok-number">0x95</span>, <span class="tok-number">0xe6</span>, <span class="tok-number">0x69</span>,</span> <span class="line" id="L955"> <span class="tok-number">0x82</span>, <span class="tok-number">0x10</span>, <span class="tok-number">0x5f</span>, <span class="tok-number">0xfb</span>, <span class="tok-number">0x64</span>, <span class="tok-number">0x0b</span>, <span class="tok-number">0xb7</span>, <span class="tok-number">0x75</span>,</span> <span class="line" id="L956"> <span class="tok-number">0x7f</span>, <span class="tok-number">0x57</span>, <span class="tok-number">0x9d</span>, <span class="tok-number">0xa3</span>, <span class="tok-number">0x16</span>, <span class="tok-number">0x02</span>, <span class="tok-number">0xfc</span>, <span class="tok-number">0x93</span>,</span> <span class="line" id="L957"> <span class="tok-number">0xec</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0xac</span>, <span class="tok-number">0x56</span>, <span class="tok-number">0xf8</span>, <span class="tok-number">0x5a</span>, <span class="tok-number">0xc3</span>, <span class="tok-number">0xc1</span>,</span> <span class="line" id="L958"> <span class="tok-number">0x34</span>, <span class="tok-number">0xa4</span>, <span class="tok-number">0x54</span>, <span class="tok-number">0x7b</span>, <span class="tok-number">0x73</span>, <span class="tok-number">0x3b</span>, <span class="tok-number">0x46</span>, <span class="tok-number">0x41</span>,</span> <span class="line" id="L959"> <span class="tok-number">0x30</span>, <span class="tok-number">0x42</span>, <span class="tok-number">0xc9</span>, <span class="tok-number">0x44</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x49</span>, <span class="tok-number">0x17</span>, <span class="tok-number">0x69</span>,</span> <span class="line" id="L960"> <span class="tok-number">0x05</span>, <span class="tok-number">0xd3</span>, <span class="tok-number">0xbe</span>, <span class="tok-number">0x59</span>, <span class="tok-number">0xea</span>, <span class="tok-number">0x1c</span>, <span class="tok-number">0x53</span>, <span class="tok-number">0xf1</span>,</span> <span class="line" id="L961"> <span class="tok-number">0x59</span>, <span class="tok-number">0x16</span>, <span class="tok-number">0x15</span>, <span class="tok-number">0x5c</span>, <span class="tok-number">0x2b</span>, <span class="tok-number">0xe8</span>, <span class="tok-number">0x24</span>, <span class="tok-number">0x1a</span>,</span> <span class="line" id="L962"></span> <span class="line" id="L963"> <span class="tok-number">0x38</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x8b</span>, <span class="tok-number">0x9a</span>, <span class="tok-number">0x26</span>, <span class="tok-number">0xbc</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x94</span>,</span> <span class="line" id="L964"> <span class="tok-number">0x1e</span>, <span class="tok-number">0x24</span>, <span class="tok-number">0x44</span>, <span class="tok-number">0x17</span>, <span class="tok-number">0x7c</span>, <span class="tok-number">0x8a</span>, <span class="tok-number">0xde</span>, <span class="tok-number">0x66</span>,</span> <span class="line" id="L965"> <span class="tok-number">0x89</span>, <span class="tok-number">0xde</span>, <span class="tok-number">0x95</span>, <span class="tok-number">0x26</span>, <span class="tok-number">0x49</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0xd9</span>, <span class="tok-number">0x58</span>,</span> <span class="line" id="L966"> <span class="tok-number">0x89</span>, <span class="tok-number">0xfb</span>, <span class="tok-number">0x60</span>, <span class="tok-number">0xe8</span>, <span class="tok-number">0x46</span>, <span class="tok-number">0x29</span>, <span class="tok-number">0xc9</span>, <span class="tok-number">0xbd</span>,</span> <span class="line" id="L967"> <span class="tok-number">0x9a</span>, <span class="tok-number">0x5a</span>, <span class="tok-number">0xcb</span>, <span class="tok-number">0x1c</span>, <span class="tok-number">0xc1</span>, <span class="tok-number">0x18</span>, <span class="tok-number">0xbe</span>, <span class="tok-number">0x56</span>,</span> <span class="line" id="L968"> <span class="tok-number">0x3e</span>, <span class="tok-number">0xb9</span>, <span class="tok-number">0xb3</span>, <span class="tok-number">0xa4</span>, <span class="tok-number">0xa4</span>, <span class="tok-number">0x72</span>, <span class="tok-number">0xf8</span>, <span class="tok-number">0x2e</span>,</span> <span class="line" id="L969"> <span class="tok-number">0x09</span>, <span class="tok-number">0xa7</span>, <span class="tok-number">0xe7</span>, <span class="tok-number">0x78</span>, <span class="tok-number">0x49</span>, <span class="tok-number">0x2b</span>, <span class="tok-number">0x56</span>, <span class="tok-number">0x2e</span>,</span> <span class="line" id="L970"> <span class="tok-number">0xf7</span>, <span class="tok-number">0x13</span>, <span class="tok-number">0x0e</span>, <span class="tok-number">0x88</span>, <span class="tok-number">0xdf</span>, <span class="tok-number">0xe0</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0xc7</span>,</span> <span class="line" id="L971"></span> <span class="line" id="L972"> <span class="tok-number">0x9d</span>, <span class="tok-number">0xb9</span>, <span class="tok-number">0xd4</span>, <span class="tok-number">0xf7</span>, <span class="tok-number">0xc7</span>, <span class="tok-number">0xa8</span>, <span class="tok-number">0x99</span>, <span class="tok-number">0x15</span>,</span> <span class="line" id="L973"> <span class="tok-number">0x1b</span>, <span class="tok-number">0x9a</span>, <span class="tok-number">0x47</span>, <span class="tok-number">0x50</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0xb6</span>, <span class="tok-number">0x3f</span>, <span class="tok-number">0xc3</span>,</span> <span class="line" id="L974"> <span class="tok-number">0x85</span>, <span class="tok-number">0x24</span>, <span class="tok-number">0x5f</span>, <span class="tok-number">0xe0</span>, <span class="tok-number">0x54</span>, <span class="tok-number">0xe3</span>, <span class="tok-number">0xdd</span>, <span class="tok-number">0x5a</span>,</span> <span class="line" id="L975"> <span class="tok-number">0x97</span>, <span class="tok-number">0xa5</span>, <span class="tok-number">0xf5</span>, <span class="tok-number">0x76</span>, <span class="tok-number">0xfe</span>, <span class="tok-number">0x06</span>, <span class="tok-number">0x40</span>, <span class="tok-number">0x25</span>,</span> <span class="line" id="L976"> <span class="tok-number">0xd3</span>, <span class="tok-number">0xce</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x2c</span>, <span class="tok-number">0x56</span>, <span class="tok-number">0x6a</span>, <span class="tok-number">0xb2</span>, <span class="tok-number">0xc5</span>,</span> <span class="line" id="L977"> <span class="tok-number">0x07</span>, <span class="tok-number">0xb1</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0xdb</span>, <span class="tok-number">0x85</span>, <span class="tok-number">0x3e</span>, <span class="tok-number">0x3d</span>, <span class="tok-number">0x69</span>,</span> <span class="line" id="L978"> <span class="tok-number">0x59</span>, <span class="tok-number">0x66</span>, <span class="tok-number">0x09</span>, <span class="tok-number">0x96</span>, <span class="tok-number">0x54</span>, <span class="tok-number">0x6c</span>, <span class="tok-number">0xc9</span>, <span class="tok-number">0xc4</span>,</span> <span class="line" id="L979"> <span class="tok-number">0xa6</span>, <span class="tok-number">0xea</span>, <span class="tok-number">0xfd</span>, <span class="tok-number">0xc7</span>, <span class="tok-number">0x77</span>, <span class="tok-number">0xc0</span>, <span class="tok-number">0x40</span>, <span class="tok-number">0xd7</span>,</span> <span class="line" id="L980"></span> <span class="line" id="L981"> <span class="tok-number">0x0e</span>, <span class="tok-number">0xaf</span>, <span class="tok-number">0x46</span>, <span class="tok-number">0xf7</span>, <span class="tok-number">0x6d</span>, <span class="tok-number">0xad</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x79</span>,</span> <span class="line" id="L982"> <span class="tok-number">0xe5</span>, <span class="tok-number">0xc5</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x0c</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x17</span>, <span class="tok-number">0x16</span>, <span class="tok-number">0x6a</span>,</span> <span class="line" id="L983"> <span class="tok-number">0x1c</span>, <span class="tok-number">0x89</span>, <span class="tok-number">0x4c</span>, <span class="tok-number">0x94</span>, <span class="tok-number">0xa3</span>, <span class="tok-number">0x71</span>, <span class="tok-number">0x87</span>, <span class="tok-number">0x6a</span>,</span> <span class="line" id="L984"> <span class="tok-number">0x94</span>, <span class="tok-number">0xdf</span>, <span class="tok-number">0x76</span>, <span class="tok-number">0x28</span>, <span class="tok-number">0xfe</span>, <span class="tok-number">0x4e</span>, <span class="tok-number">0xaa</span>, <span class="tok-number">0xf2</span>,</span> <span class="line" id="L985"> <span class="tok-number">0xcc</span>, <span class="tok-number">0xb2</span>, <span class="tok-number">0x7d</span>, <span class="tok-number">0x5a</span>, <span class="tok-number">0xaa</span>, <span class="tok-number">0xe0</span>, <span class="tok-number">0xad</span>, <span class="tok-number">0x7a</span>,</span> <span class="line" id="L986"> <span class="tok-number">0xd0</span>, <span class="tok-number">0xf9</span>, <span class="tok-number">0xd4</span>, <span class="tok-number">0xb6</span>, <span class="tok-number">0xad</span>, <span class="tok-number">0x3b</span>, <span class="tok-number">0x54</span>, <span class="tok-number">0x09</span>,</span> <span class="line" id="L987"> <span class="tok-number">0x87</span>, <span class="tok-number">0x46</span>, <span class="tok-number">0xd4</span>, <span class="tok-number">0x52</span>, <span class="tok-number">0x4d</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x40</span>, <span class="tok-number">0x7a</span>,</span> <span class="line" id="L988"> <span class="tok-number">0x6d</span>, <span class="tok-number">0xeb</span>, <span class="tok-number">0x3a</span>, <span class="tok-number">0xb7</span>, <span class="tok-number">0x8f</span>, <span class="tok-number">0xab</span>, <span class="tok-number">0x78</span>, <span class="tok-number">0xc9</span>,</span> <span class="line" id="L989"> };</span> <span class="line" id="L990"> <span class="tok-kw">const</span> m = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L991"> <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L992"> <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L993"> <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L994"> <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L995"> <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L996"> <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L997"> <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L998"> <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L999"></span> <span class="line" id="L1000"> <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L1001"> <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L1002"> <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L1003"> <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L1004"> <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L1005"> <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L1006"> <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L1007"> <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L1008"> };</span> <span class="line" id="L1009"> <span class="tok-kw">var</span> result: [<span class="tok-number">256</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1010"> <span class="tok-kw">const</span> key = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L1011"> <span class="tok-number">0x00</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x02</span>, <span class="tok-number">0x03</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x05</span>, <span class="tok-number">0x06</span>, <span class="tok-number">0x07</span>,</span> <span class="line" id="L1012"> <span class="tok-number">0x08</span>, <span class="tok-number">0x09</span>, <span class="tok-number">0x0a</span>, <span class="tok-number">0x0b</span>, <span class="tok-number">0x0c</span>, <span class="tok-number">0x0d</span>, <span class="tok-number">0x0e</span>, <span class="tok-number">0x0f</span>,</span> <span class="line" id="L1013"> <span class="tok-number">0x10</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0x12</span>, <span class="tok-number">0x13</span>, <span class="tok-number">0x14</span>, <span class="tok-number">0x15</span>, <span class="tok-number">0x16</span>, <span class="tok-number">0x17</span>,</span> <span class="line" id="L1014"> <span class="tok-number">0x18</span>, <span class="tok-number">0x19</span>, <span class="tok-number">0x1a</span>, <span class="tok-number">0x1b</span>, <span class="tok-number">0x1c</span>, <span class="tok-number">0x1d</span>, <span class="tok-number">0x1e</span>, <span class="tok-number">0x1f</span>,</span> <span class="line" id="L1015"> };</span> <span class="line" id="L1016"> <span class="tok-kw">const</span> nonce = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L1017"> <span class="tok-number">0x00</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x02</span>, <span class="tok-number">0x03</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x05</span>, <span class="tok-number">0x06</span>, <span class="tok-number">0x07</span>,</span> <span class="line" id="L1018"> };</span> <span class="line" id="L1019"></span> <span class="line" id="L1020"> ChaCha20With64BitNonce.xor(result[<span class="tok-number">0</span>..], m[<span class="tok-number">0</span>..], <span class="tok-number">0</span>, key, nonce);</span> <span class="line" id="L1021"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, &expected_result, &result);</span> <span class="line" id="L1022">}</span> <span class="line" id="L1023"></span> <span class="line" id="L1024"><span class="tok-kw">test</span> <span class="tok-str">"seal"</span> {</span> <span class="line" id="L1025"> {</span> <span class="line" id="L1026"> <span class="tok-kw">const</span> m = <span class="tok-str">""</span>;</span> <span class="line" id="L1027"> <span class="tok-kw">const</span> ad = <span class="tok-str">""</span>;</span> <span class="line" id="L1028"> <span class="tok-kw">const</span> key = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L1029"> <span class="tok-number">0x80</span>, <span class="tok-number">0x81</span>, <span class="tok-number">0x82</span>, <span class="tok-number">0x83</span>, <span class="tok-number">0x84</span>, <span class="tok-number">0x85</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0x87</span>, <span class="tok-number">0x88</span>, <span class="tok-number">0x89</span>, <span class="tok-number">0x8a</span>, <span class="tok-number">0x8b</span>, <span class="tok-number">0x8c</span>, <span class="tok-number">0x8d</span>, <span class="tok-number">0x8e</span>, <span class="tok-number">0x8f</span>,</span> <span class="line" id="L1030"> <span class="tok-number">0x90</span>, <span class="tok-number">0x91</span>, <span class="tok-number">0x92</span>, <span class="tok-number">0x93</span>, <span class="tok-number">0x94</span>, <span class="tok-number">0x95</span>, <span class="tok-number">0x96</span>, <span class="tok-number">0x97</span>, <span class="tok-number">0x98</span>, <span class="tok-number">0x99</span>, <span class="tok-number">0x9a</span>, <span class="tok-number">0x9b</span>, <span class="tok-number">0x9c</span>, <span class="tok-number">0x9d</span>, <span class="tok-number">0x9e</span>, <span class="tok-number">0x9f</span>,</span> <span class="line" id="L1031"> };</span> <span class="line" id="L1032"> <span class="tok-kw">const</span> nonce = [_]<span class="tok-type">u8</span>{ <span class="tok-number">0x7</span>, <span class="tok-number">0x0</span>, <span class="tok-number">0x0</span>, <span class="tok-number">0x0</span>, <span class="tok-number">0x40</span>, <span class="tok-number">0x41</span>, <span class="tok-number">0x42</span>, <span class="tok-number">0x43</span>, <span class="tok-number">0x44</span>, <span class="tok-number">0x45</span>, <span class="tok-number">0x46</span>, <span class="tok-number">0x47</span> };</span> <span class="line" id="L1033"> <span class="tok-kw">const</span> exp_out = [_]<span class="tok-type">u8</span>{ <span class="tok-number">0xa0</span>, <span class="tok-number">0x78</span>, <span class="tok-number">0x4d</span>, <span class="tok-number">0x7a</span>, <span class="tok-number">0x47</span>, <span class="tok-number">0x16</span>, <span class="tok-number">0xf3</span>, <span class="tok-number">0xfe</span>, <span class="tok-number">0xb4</span>, <span class="tok-number">0xf6</span>, <span class="tok-number">0x4e</span>, <span class="tok-number">0x7f</span>, <span class="tok-number">0x4b</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0xbf</span>, <span class="tok-number">0x4</span> };</span> <span class="line" id="L1034"></span> <span class="line" id="L1035"> <span class="tok-kw">var</span> out: [exp_out.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1036"> ChaCha20Poly1305.encrypt(out[<span class="tok-number">0</span>..m.len], out[m.len..], m, ad, nonce, key);</span> <span class="line" id="L1037"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, exp_out[<span class="tok-number">0</span>..], out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L1038"> }</span> <span class="line" id="L1039"> {</span> <span class="line" id="L1040"> <span class="tok-kw">const</span> m = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L1041"> <span class="tok-number">0x4c</span>, <span class="tok-number">0x61</span>, <span class="tok-number">0x64</span>, <span class="tok-number">0x69</span>, <span class="tok-number">0x65</span>, <span class="tok-number">0x73</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x61</span>, <span class="tok-number">0x6e</span>, <span class="tok-number">0x64</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x47</span>, <span class="tok-number">0x65</span>, <span class="tok-number">0x6e</span>, <span class="tok-number">0x74</span>, <span class="tok-number">0x6c</span>,</span> <span class="line" id="L1042"> <span class="tok-number">0x65</span>, <span class="tok-number">0x6d</span>, <span class="tok-number">0x65</span>, <span class="tok-number">0x6e</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x6f</span>, <span class="tok-number">0x66</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x74</span>, <span class="tok-number">0x68</span>, <span class="tok-number">0x65</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x63</span>, <span class="tok-number">0x6c</span>, <span class="tok-number">0x61</span>, <span class="tok-number">0x73</span>,</span> <span class="line" id="L1043"> <span class="tok-number">0x73</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x6f</span>, <span class="tok-number">0x66</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x27</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x3a</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x49</span>, <span class="tok-number">0x66</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x49</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x63</span>,</span> <span class="line" id="L1044"> <span class="tok-number">0x6f</span>, <span class="tok-number">0x75</span>, <span class="tok-number">0x6c</span>, <span class="tok-number">0x64</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x6f</span>, <span class="tok-number">0x66</span>, <span class="tok-number">0x66</span>, <span class="tok-number">0x65</span>, <span class="tok-number">0x72</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x79</span>, <span class="tok-number">0x6f</span>, <span class="tok-number">0x75</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x6f</span>,</span> <span class="line" id="L1045"> <span class="tok-number">0x6e</span>, <span class="tok-number">0x6c</span>, <span class="tok-number">0x79</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x6f</span>, <span class="tok-number">0x6e</span>, <span class="tok-number">0x65</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x74</span>, <span class="tok-number">0x69</span>, <span class="tok-number">0x70</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x66</span>, <span class="tok-number">0x6f</span>, <span class="tok-number">0x72</span>, <span class="tok-number">0x20</span>,</span> <span class="line" id="L1046"> <span class="tok-number">0x74</span>, <span class="tok-number">0x68</span>, <span class="tok-number">0x65</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x66</span>, <span class="tok-number">0x75</span>, <span class="tok-number">0x74</span>, <span class="tok-number">0x75</span>, <span class="tok-number">0x72</span>, <span class="tok-number">0x65</span>, <span class="tok-number">0x2c</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x73</span>, <span class="tok-number">0x75</span>, <span class="tok-number">0x6e</span>, <span class="tok-number">0x73</span>,</span> <span class="line" id="L1047"> <span class="tok-number">0x63</span>, <span class="tok-number">0x72</span>, <span class="tok-number">0x65</span>, <span class="tok-number">0x65</span>, <span class="tok-number">0x6e</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x77</span>, <span class="tok-number">0x6f</span>, <span class="tok-number">0x75</span>, <span class="tok-number">0x6c</span>, <span class="tok-number">0x64</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x62</span>, <span class="tok-number">0x65</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x69</span>,</span> <span class="line" id="L1048"> <span class="tok-number">0x74</span>, <span class="tok-number">0x2e</span>,</span> <span class="line" id="L1049"> };</span> <span class="line" id="L1050"> <span class="tok-kw">const</span> ad = [_]<span class="tok-type">u8</span>{ <span class="tok-number">0x50</span>, <span class="tok-number">0x51</span>, <span class="tok-number">0x52</span>, <span class="tok-number">0x53</span>, <span class="tok-number">0xc0</span>, <span class="tok-number">0xc1</span>, <span class="tok-number">0xc2</span>, <span class="tok-number">0xc3</span>, <span class="tok-number">0xc4</span>, <span class="tok-number">0xc5</span>, <span class="tok-number">0xc6</span>, <span class="tok-number">0xc7</span> };</span> <span class="line" id="L1051"> <span class="tok-kw">const</span> key = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L1052"> <span class="tok-number">0x80</span>, <span class="tok-number">0x81</span>, <span class="tok-number">0x82</span>, <span class="tok-number">0x83</span>, <span class="tok-number">0x84</span>, <span class="tok-number">0x85</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0x87</span>, <span class="tok-number">0x88</span>, <span class="tok-number">0x89</span>, <span class="tok-number">0x8a</span>, <span class="tok-number">0x8b</span>, <span class="tok-number">0x8c</span>, <span class="tok-number">0x8d</span>, <span class="tok-number">0x8e</span>, <span class="tok-number">0x8f</span>,</span> <span class="line" id="L1053"> <span class="tok-number">0x90</span>, <span class="tok-number">0x91</span>, <span class="tok-number">0x92</span>, <span class="tok-number">0x93</span>, <span class="tok-number">0x94</span>, <span class="tok-number">0x95</span>, <span class="tok-number">0x96</span>, <span class="tok-number">0x97</span>, <span class="tok-number">0x98</span>, <span class="tok-number">0x99</span>, <span class="tok-number">0x9a</span>, <span class="tok-number">0x9b</span>, <span class="tok-number">0x9c</span>, <span class="tok-number">0x9d</span>, <span class="tok-number">0x9e</span>, <span class="tok-number">0x9f</span>,</span> <span class="line" id="L1054"> };</span> <span class="line" id="L1055"> <span class="tok-kw">const</span> nonce = [_]<span class="tok-type">u8</span>{ <span class="tok-number">0x7</span>, <span class="tok-number">0x0</span>, <span class="tok-number">0x0</span>, <span class="tok-number">0x0</span>, <span class="tok-number">0x40</span>, <span class="tok-number">0x41</span>, <span class="tok-number">0x42</span>, <span class="tok-number">0x43</span>, <span class="tok-number">0x44</span>, <span class="tok-number">0x45</span>, <span class="tok-number">0x46</span>, <span class="tok-number">0x47</span> };</span> <span class="line" id="L1056"> <span class="tok-kw">const</span> exp_out = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L1057"> <span class="tok-number">0xd3</span>, <span class="tok-number">0x1a</span>, <span class="tok-number">0x8d</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x64</span>, <span class="tok-number">0x8e</span>, <span class="tok-number">0x60</span>, <span class="tok-number">0xdb</span>, <span class="tok-number">0x7b</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0xaf</span>, <span class="tok-number">0xbc</span>, <span class="tok-number">0x53</span>, <span class="tok-number">0xef</span>, <span class="tok-number">0x7e</span>, <span class="tok-number">0xc2</span>,</span> <span class="line" id="L1058"> <span class="tok-number">0xa4</span>, <span class="tok-number">0xad</span>, <span class="tok-number">0xed</span>, <span class="tok-number">0x51</span>, <span class="tok-number">0x29</span>, <span class="tok-number">0x6e</span>, <span class="tok-number">0x8</span>, <span class="tok-number">0xfe</span>, <span class="tok-number">0xa9</span>, <span class="tok-number">0xe2</span>, <span class="tok-number">0xb5</span>, <span class="tok-number">0xa7</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0xee</span>, <span class="tok-number">0x62</span>, <span class="tok-number">0xd6</span>,</span> <span class="line" id="L1059"> <span class="tok-number">0x3d</span>, <span class="tok-number">0xbe</span>, <span class="tok-number">0xa4</span>, <span class="tok-number">0x5e</span>, <span class="tok-number">0x8c</span>, <span class="tok-number">0xa9</span>, <span class="tok-number">0x67</span>, <span class="tok-number">0x12</span>, <span class="tok-number">0x82</span>, <span class="tok-number">0xfa</span>, <span class="tok-number">0xfb</span>, <span class="tok-number">0x69</span>, <span class="tok-number">0xda</span>, <span class="tok-number">0x92</span>, <span class="tok-number">0x72</span>, <span class="tok-number">0x8b</span>,</span> <span class="line" id="L1060"> <span class="tok-number">0x1a</span>, <span class="tok-number">0x71</span>, <span class="tok-number">0xde</span>, <span class="tok-number">0xa</span>, <span class="tok-number">0x9e</span>, <span class="tok-number">0x6</span>, <span class="tok-number">0xb</span>, <span class="tok-number">0x29</span>, <span class="tok-number">0x5</span>, <span class="tok-number">0xd6</span>, <span class="tok-number">0xa5</span>, <span class="tok-number">0xb6</span>, <span class="tok-number">0x7e</span>, <span class="tok-number">0xcd</span>, <span class="tok-number">0x3b</span>, <span class="tok-number">0x36</span>,</span> <span class="line" id="L1061"> <span class="tok-number">0x92</span>, <span class="tok-number">0xdd</span>, <span class="tok-number">0xbd</span>, <span class="tok-number">0x7f</span>, <span class="tok-number">0x2d</span>, <span class="tok-number">0x77</span>, <span class="tok-number">0x8b</span>, <span class="tok-number">0x8c</span>, <span class="tok-number">0x98</span>, <span class="tok-number">0x3</span>, <span class="tok-number">0xae</span>, <span class="tok-number">0xe3</span>, <span class="tok-number">0x28</span>, <span class="tok-number">0x9</span>, <span class="tok-number">0x1b</span>, <span class="tok-number">0x58</span>,</span> <span class="line" id="L1062"> <span class="tok-number">0xfa</span>, <span class="tok-number">0xb3</span>, <span class="tok-number">0x24</span>, <span class="tok-number">0xe4</span>, <span class="tok-number">0xfa</span>, <span class="tok-number">0xd6</span>, <span class="tok-number">0x75</span>, <span class="tok-number">0x94</span>, <span class="tok-number">0x55</span>, <span class="tok-number">0x85</span>, <span class="tok-number">0x80</span>, <span class="tok-number">0x8b</span>, <span class="tok-number">0x48</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0xd7</span>, <span class="tok-number">0xbc</span>,</span> <span class="line" id="L1063"> <span class="tok-number">0x3f</span>, <span class="tok-number">0xf4</span>, <span class="tok-number">0xde</span>, <span class="tok-number">0xf0</span>, <span class="tok-number">0x8e</span>, <span class="tok-number">0x4b</span>, <span class="tok-number">0x7a</span>, <span class="tok-number">0x9d</span>, <span class="tok-number">0xe5</span>, <span class="tok-number">0x76</span>, <span class="tok-number">0xd2</span>, <span class="tok-number">0x65</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0xce</span>, <span class="tok-number">0xc6</span>, <span class="tok-number">0x4b</span>,</span> <span class="line" id="L1064"> <span class="tok-number">0x61</span>, <span class="tok-number">0x16</span>, <span class="tok-number">0x1a</span>, <span class="tok-number">0xe1</span>, <span class="tok-number">0xb</span>, <span class="tok-number">0x59</span>, <span class="tok-number">0x4f</span>, <span class="tok-number">0x9</span>, <span class="tok-number">0xe2</span>, <span class="tok-number">0x6a</span>, <span class="tok-number">0x7e</span>, <span class="tok-number">0x90</span>, <span class="tok-number">0x2e</span>, <span class="tok-number">0xcb</span>, <span class="tok-number">0xd0</span>, <span class="tok-number">0x60</span>,</span> <span class="line" id="L1065"> <span class="tok-number">0x6</span>, <span class="tok-number">0x91</span>,</span> <span class="line" id="L1066"> };</span> <span class="line" id="L1067"></span> <span class="line" id="L1068"> <span class="tok-kw">var</span> out: [exp_out.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1069"> ChaCha20Poly1305.encrypt(out[<span class="tok-number">0</span>..m.len], out[m.len..], m[<span class="tok-number">0</span>..], ad[<span class="tok-number">0</span>..], nonce, key);</span> <span class="line" id="L1070"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, exp_out[<span class="tok-number">0</span>..], out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L1071"> }</span> <span class="line" id="L1072">}</span> <span class="line" id="L1073"></span> <span class="line" id="L1074"><span class="tok-kw">test</span> <span class="tok-str">"open"</span> {</span> <span class="line" id="L1075"> {</span> <span class="line" id="L1076"> <span class="tok-kw">const</span> c = [_]<span class="tok-type">u8</span>{ <span class="tok-number">0xa0</span>, <span class="tok-number">0x78</span>, <span class="tok-number">0x4d</span>, <span class="tok-number">0x7a</span>, <span class="tok-number">0x47</span>, <span class="tok-number">0x16</span>, <span class="tok-number">0xf3</span>, <span class="tok-number">0xfe</span>, <span class="tok-number">0xb4</span>, <span class="tok-number">0xf6</span>, <span class="tok-number">0x4e</span>, <span class="tok-number">0x7f</span>, <span class="tok-number">0x4b</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0xbf</span>, <span class="tok-number">0x4</span> };</span> <span class="line" id="L1077"> <span class="tok-kw">const</span> ad = <span class="tok-str">""</span>;</span> <span class="line" id="L1078"> <span class="tok-kw">const</span> key = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L1079"> <span class="tok-number">0x80</span>, <span class="tok-number">0x81</span>, <span class="tok-number">0x82</span>, <span class="tok-number">0x83</span>, <span class="tok-number">0x84</span>, <span class="tok-number">0x85</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0x87</span>, <span class="tok-number">0x88</span>, <span class="tok-number">0x89</span>, <span class="tok-number">0x8a</span>, <span class="tok-number">0x8b</span>, <span class="tok-number">0x8c</span>, <span class="tok-number">0x8d</span>, <span class="tok-number">0x8e</span>, <span class="tok-number">0x8f</span>,</span> <span class="line" id="L1080"> <span class="tok-number">0x90</span>, <span class="tok-number">0x91</span>, <span class="tok-number">0x92</span>, <span class="tok-number">0x93</span>, <span class="tok-number">0x94</span>, <span class="tok-number">0x95</span>, <span class="tok-number">0x96</span>, <span class="tok-number">0x97</span>, <span class="tok-number">0x98</span>, <span class="tok-number">0x99</span>, <span class="tok-number">0x9a</span>, <span class="tok-number">0x9b</span>, <span class="tok-number">0x9c</span>, <span class="tok-number">0x9d</span>, <span class="tok-number">0x9e</span>, <span class="tok-number">0x9f</span>,</span> <span class="line" id="L1081"> };</span> <span class="line" id="L1082"> <span class="tok-kw">const</span> nonce = [_]<span class="tok-type">u8</span>{ <span class="tok-number">0x7</span>, <span class="tok-number">0x0</span>, <span class="tok-number">0x0</span>, <span class="tok-number">0x0</span>, <span class="tok-number">0x40</span>, <span class="tok-number">0x41</span>, <span class="tok-number">0x42</span>, <span class="tok-number">0x43</span>, <span class="tok-number">0x44</span>, <span class="tok-number">0x45</span>, <span class="tok-number">0x46</span>, <span class="tok-number">0x47</span> };</span> <span class="line" id="L1083"> <span class="tok-kw">const</span> exp_out = <span class="tok-str">""</span>;</span> <span class="line" id="L1084"></span> <span class="line" id="L1085"> <span class="tok-kw">var</span> out: [exp_out.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1086"> <span class="tok-kw">try</span> ChaCha20Poly1305.decrypt(out[<span class="tok-number">0</span>..], c[<span class="tok-number">0</span>..exp_out.len], c[exp_out.len..]., ad[<span class="tok-number">0</span>..], nonce, key);</span> <span class="line" id="L1087"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, exp_out[<span class="tok-number">0</span>..], out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L1088"> }</span> <span class="line" id="L1089"> {</span> <span class="line" id="L1090"> <span class="tok-kw">const</span> c = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L1091"> <span class="tok-number">0xd3</span>, <span class="tok-number">0x1a</span>, <span class="tok-number">0x8d</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x64</span>, <span class="tok-number">0x8e</span>, <span class="tok-number">0x60</span>, <span class="tok-number">0xdb</span>, <span class="tok-number">0x7b</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0xaf</span>, <span class="tok-number">0xbc</span>, <span class="tok-number">0x53</span>, <span class="tok-number">0xef</span>, <span class="tok-number">0x7e</span>, <span class="tok-number">0xc2</span>,</span> <span class="line" id="L1092"> <span class="tok-number">0xa4</span>, <span class="tok-number">0xad</span>, <span class="tok-number">0xed</span>, <span class="tok-number">0x51</span>, <span class="tok-number">0x29</span>, <span class="tok-number">0x6e</span>, <span class="tok-number">0x8</span>, <span class="tok-number">0xfe</span>, <span class="tok-number">0xa9</span>, <span class="tok-number">0xe2</span>, <span class="tok-number">0xb5</span>, <span class="tok-number">0xa7</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0xee</span>, <span class="tok-number">0x62</span>, <span class="tok-number">0xd6</span>,</span> <span class="line" id="L1093"> <span class="tok-number">0x3d</span>, <span class="tok-number">0xbe</span>, <span class="tok-number">0xa4</span>, <span class="tok-number">0x5e</span>, <span class="tok-number">0x8c</span>, <span class="tok-number">0xa9</span>, <span class="tok-number">0x67</span>, <span class="tok-number">0x12</span>, <span class="tok-number">0x82</span>, <span class="tok-number">0xfa</span>, <span class="tok-number">0xfb</span>, <span class="tok-number">0x69</span>, <span class="tok-number">0xda</span>, <span class="tok-number">0x92</span>, <span class="tok-number">0x72</span>, <span class="tok-number">0x8b</span>,</span> <span class="line" id="L1094"> <span class="tok-number">0x1a</span>, <span class="tok-number">0x71</span>, <span class="tok-number">0xde</span>, <span class="tok-number">0xa</span>, <span class="tok-number">0x9e</span>, <span class="tok-number">0x6</span>, <span class="tok-number">0xb</span>, <span class="tok-number">0x29</span>, <span class="tok-number">0x5</span>, <span class="tok-number">0xd6</span>, <span class="tok-number">0xa5</span>, <span class="tok-number">0xb6</span>, <span class="tok-number">0x7e</span>, <span class="tok-number">0xcd</span>, <span class="tok-number">0x3b</span>, <span class="tok-number">0x36</span>,</span> <span class="line" id="L1095"> <span class="tok-number">0x92</span>, <span class="tok-number">0xdd</span>, <span class="tok-number">0xbd</span>, <span class="tok-number">0x7f</span>, <span class="tok-number">0x2d</span>, <span class="tok-number">0x77</span>, <span class="tok-number">0x8b</span>, <span class="tok-number">0x8c</span>, <span class="tok-number">0x98</span>, <span class="tok-number">0x3</span>, <span class="tok-number">0xae</span>, <span class="tok-number">0xe3</span>, <span class="tok-number">0x28</span>, <span class="tok-number">0x9</span>, <span class="tok-number">0x1b</span>, <span class="tok-number">0x58</span>,</span> <span class="line" id="L1096"> <span class="tok-number">0xfa</span>, <span class="tok-number">0xb3</span>, <span class="tok-number">0x24</span>, <span class="tok-number">0xe4</span>, <span class="tok-number">0xfa</span>, <span class="tok-number">0xd6</span>, <span class="tok-number">0x75</span>, <span class="tok-number">0x94</span>, <span class="tok-number">0x55</span>, <span class="tok-number">0x85</span>, <span class="tok-number">0x80</span>, <span class="tok-number">0x8b</span>, <span class="tok-number">0x48</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0xd7</span>, <span class="tok-number">0xbc</span>,</span> <span class="line" id="L1097"> <span class="tok-number">0x3f</span>, <span class="tok-number">0xf4</span>, <span class="tok-number">0xde</span>, <span class="tok-number">0xf0</span>, <span class="tok-number">0x8e</span>, <span class="tok-number">0x4b</span>, <span class="tok-number">0x7a</span>, <span class="tok-number">0x9d</span>, <span class="tok-number">0xe5</span>, <span class="tok-number">0x76</span>, <span class="tok-number">0xd2</span>, <span class="tok-number">0x65</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0xce</span>, <span class="tok-number">0xc6</span>, <span class="tok-number">0x4b</span>,</span> <span class="line" id="L1098"> <span class="tok-number">0x61</span>, <span class="tok-number">0x16</span>, <span class="tok-number">0x1a</span>, <span class="tok-number">0xe1</span>, <span class="tok-number">0xb</span>, <span class="tok-number">0x59</span>, <span class="tok-number">0x4f</span>, <span class="tok-number">0x9</span>, <span class="tok-number">0xe2</span>, <span class="tok-number">0x6a</span>, <span class="tok-number">0x7e</span>, <span class="tok-number">0x90</span>, <span class="tok-number">0x2e</span>, <span class="tok-number">0xcb</span>, <span class="tok-number">0xd0</span>, <span class="tok-number">0x60</span>,</span> <span class="line" id="L1099"> <span class="tok-number">0x6</span>, <span class="tok-number">0x91</span>,</span> <span class="line" id="L1100"> };</span> <span class="line" id="L1101"> <span class="tok-kw">const</span> ad = [_]<span class="tok-type">u8</span>{ <span class="tok-number">0x50</span>, <span class="tok-number">0x51</span>, <span class="tok-number">0x52</span>, <span class="tok-number">0x53</span>, <span class="tok-number">0xc0</span>, <span class="tok-number">0xc1</span>, <span class="tok-number">0xc2</span>, <span class="tok-number">0xc3</span>, <span class="tok-number">0xc4</span>, <span class="tok-number">0xc5</span>, <span class="tok-number">0xc6</span>, <span class="tok-number">0xc7</span> };</span> <span class="line" id="L1102"> <span class="tok-kw">const</span> key = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L1103"> <span class="tok-number">0x80</span>, <span class="tok-number">0x81</span>, <span class="tok-number">0x82</span>, <span class="tok-number">0x83</span>, <span class="tok-number">0x84</span>, <span class="tok-number">0x85</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0x87</span>, <span class="tok-number">0x88</span>, <span class="tok-number">0x89</span>, <span class="tok-number">0x8a</span>, <span class="tok-number">0x8b</span>, <span class="tok-number">0x8c</span>, <span class="tok-number">0x8d</span>, <span class="tok-number">0x8e</span>, <span class="tok-number">0x8f</span>,</span> <span class="line" id="L1104"> <span class="tok-number">0x90</span>, <span class="tok-number">0x91</span>, <span class="tok-number">0x92</span>, <span class="tok-number">0x93</span>, <span class="tok-number">0x94</span>, <span class="tok-number">0x95</span>, <span class="tok-number">0x96</span>, <span class="tok-number">0x97</span>, <span class="tok-number">0x98</span>, <span class="tok-number">0x99</span>, <span class="tok-number">0x9a</span>, <span class="tok-number">0x9b</span>, <span class="tok-number">0x9c</span>, <span class="tok-number">0x9d</span>, <span class="tok-number">0x9e</span>, <span class="tok-number">0x9f</span>,</span> <span class="line" id="L1105"> };</span> <span class="line" id="L1106"> <span class="tok-kw">const</span> nonce = [_]<span class="tok-type">u8</span>{ <span class="tok-number">0x7</span>, <span class="tok-number">0x0</span>, <span class="tok-number">0x0</span>, <span class="tok-number">0x0</span>, <span class="tok-number">0x40</span>, <span class="tok-number">0x41</span>, <span class="tok-number">0x42</span>, <span class="tok-number">0x43</span>, <span class="tok-number">0x44</span>, <span class="tok-number">0x45</span>, <span class="tok-number">0x46</span>, <span class="tok-number">0x47</span> };</span> <span class="line" id="L1107"> <span class="tok-kw">const</span> exp_out = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L1108"> <span class="tok-number">0x4c</span>, <span class="tok-number">0x61</span>, <span class="tok-number">0x64</span>, <span class="tok-number">0x69</span>, <span class="tok-number">0x65</span>, <span class="tok-number">0x73</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x61</span>, <span class="tok-number">0x6e</span>, <span class="tok-number">0x64</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x47</span>, <span class="tok-number">0x65</span>, <span class="tok-number">0x6e</span>, <span class="tok-number">0x74</span>, <span class="tok-number">0x6c</span>,</span> <span class="line" id="L1109"> <span class="tok-number">0x65</span>, <span class="tok-number">0x6d</span>, <span class="tok-number">0x65</span>, <span class="tok-number">0x6e</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x6f</span>, <span class="tok-number">0x66</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x74</span>, <span class="tok-number">0x68</span>, <span class="tok-number">0x65</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x63</span>, <span class="tok-number">0x6c</span>, <span class="tok-number">0x61</span>, <span class="tok-number">0x73</span>,</span> <span class="line" id="L1110"> <span class="tok-number">0x73</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x6f</span>, <span class="tok-number">0x66</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x27</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x3a</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x49</span>, <span class="tok-number">0x66</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x49</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x63</span>,</span> <span class="line" id="L1111"> <span class="tok-number">0x6f</span>, <span class="tok-number">0x75</span>, <span class="tok-number">0x6c</span>, <span class="tok-number">0x64</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x6f</span>, <span class="tok-number">0x66</span>, <span class="tok-number">0x66</span>, <span class="tok-number">0x65</span>, <span class="tok-number">0x72</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x79</span>, <span class="tok-number">0x6f</span>, <span class="tok-number">0x75</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x6f</span>,</span> <span class="line" id="L1112"> <span class="tok-number">0x6e</span>, <span class="tok-number">0x6c</span>, <span class="tok-number">0x79</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x6f</span>, <span class="tok-number">0x6e</span>, <span class="tok-number">0x65</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x74</span>, <span class="tok-number">0x69</span>, <span class="tok-number">0x70</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x66</span>, <span class="tok-number">0x6f</span>, <span class="tok-number">0x72</span>, <span class="tok-number">0x20</span>,</span> <span class="line" id="L1113"> <span class="tok-number">0x74</span>, <span class="tok-number">0x68</span>, <span class="tok-number">0x65</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x66</span>, <span class="tok-number">0x75</span>, <span class="tok-number">0x74</span>, <span class="tok-number">0x75</span>, <span class="tok-number">0x72</span>, <span class="tok-number">0x65</span>, <span class="tok-number">0x2c</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x73</span>, <span class="tok-number">0x75</span>, <span class="tok-number">0x6e</span>, <span class="tok-number">0x73</span>,</span> <span class="line" id="L1114"> <span class="tok-number">0x63</span>, <span class="tok-number">0x72</span>, <span class="tok-number">0x65</span>, <span class="tok-number">0x65</span>, <span class="tok-number">0x6e</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x77</span>, <span class="tok-number">0x6f</span>, <span class="tok-number">0x75</span>, <span class="tok-number">0x6c</span>, <span class="tok-number">0x64</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x62</span>, <span class="tok-number">0x65</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x69</span>,</span> <span class="line" id="L1115"> <span class="tok-number">0x74</span>, <span class="tok-number">0x2e</span>,</span> <span class="line" id="L1116"> };</span> <span class="line" id="L1117"></span> <span class="line" id="L1118"> <span class="tok-kw">var</span> out: [exp_out.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1119"> <span class="tok-kw">try</span> ChaCha20Poly1305.decrypt(out[<span class="tok-number">0</span>..], c[<span class="tok-number">0</span>..exp_out.len], c[exp_out.len..]., ad[<span class="tok-number">0</span>..], nonce, key);</span> <span class="line" id="L1120"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, exp_out[<span class="tok-number">0</span>..], out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L1121"></span> <span class="line" id="L1122"> <span class="tok-comment">// corrupting the ciphertext, data, key, or nonce should cause a failure</span> </span> <span class="line" id="L1123"> <span class="tok-kw">var</span> bad_c = c;</span> <span class="line" id="L1124"> bad_c[<span class="tok-number">0</span>] ^= <span class="tok-number">1</span>;</span> <span class="line" id="L1125"> <span class="tok-kw">try</span> testing.expectError(<span class="tok-kw">error</span>.AuthenticationFailed, ChaCha20Poly1305.decrypt(out[<span class="tok-number">0</span>..], bad_c[<span class="tok-number">0</span>..out.len], bad_c[out.len..]., ad[<span class="tok-number">0</span>..], nonce, key));</span> <span class="line" id="L1126"> <span class="tok-kw">var</span> bad_ad = ad;</span> <span class="line" id="L1127"> bad_ad[<span class="tok-number">0</span>] ^= <span class="tok-number">1</span>;</span> <span class="line" id="L1128"> <span class="tok-kw">try</span> testing.expectError(<span class="tok-kw">error</span>.AuthenticationFailed, ChaCha20Poly1305.decrypt(out[<span class="tok-number">0</span>..], c[<span class="tok-number">0</span>..out.len], c[out.len..]., bad_ad[<span class="tok-number">0</span>..], nonce, key));</span> <span class="line" id="L1129"> <span class="tok-kw">var</span> bad_key = key;</span> <span class="line" id="L1130"> bad_key[<span class="tok-number">0</span>] ^= <span class="tok-number">1</span>;</span> <span class="line" id="L1131"> <span class="tok-kw">try</span> testing.expectError(<span class="tok-kw">error</span>.AuthenticationFailed, ChaCha20Poly1305.decrypt(out[<span class="tok-number">0</span>..], c[<span class="tok-number">0</span>..out.len], c[out.len..]., ad[<span class="tok-number">0</span>..], nonce, bad_key));</span> <span class="line" id="L1132"> <span class="tok-kw">var</span> bad_nonce = nonce;</span> <span class="line" id="L1133"> bad_nonce[<span class="tok-number">0</span>] ^= <span class="tok-number">1</span>;</span> <span class="line" id="L1134"> <span class="tok-kw">try</span> testing.expectError(<span class="tok-kw">error</span>.AuthenticationFailed, ChaCha20Poly1305.decrypt(out[<span class="tok-number">0</span>..], c[<span class="tok-number">0</span>..out.len], c[out.len..]., ad[<span class="tok-number">0</span>..], bad_nonce, key));</span> <span class="line" id="L1135"> }</span> <span class="line" id="L1136">}</span> <span class="line" id="L1137"></span> <span class="line" id="L1138"><span class="tok-kw">test</span> <span class="tok-str">"crypto.xchacha20"</span> {</span> <span class="line" id="L1139"> <span class="tok-kw">const</span> key = [_]<span class="tok-type">u8</span>{<span class="tok-number">69</span>} <span class="tok-number">32</span>;</span> <span class="line" id="L1140"> <span class="tok-kw">const</span> nonce = [_]<span class="tok-type">u8</span>{<span class="tok-number">42</span>} <span class="tok-number">24</span>;</span> <span class="line" id="L1141"> <span class="tok-kw">const</span> m = <span class="tok-str">"Ladies and Gentlemen of the class of '99: If I could offer you only one tip for the future, sunscreen would be it."</span>;</span> <span class="line" id="L1142"> {</span> <span class="line" id="L1143"> <span class="tok-kw">var</span> c: [m.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1144"> XChaCha20IETF.xor(c[<span class="tok-number">0</span>..], m[<span class="tok-number">0</span>..], <span class="tok-number">0</span>, key, nonce);</span> <span class="line" id="L1145"> <span class="tok-kw">var</span> buf: [<span class="tok-number">2</span> * c.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1146"> <span class="tok-kw">try</span> testing.expectEqualStrings(<span class="tok-kw">try</span> std.fmt.bufPrint(&buf, <span class="tok-str">"{s}"</span>, .{std.fmt.fmtSliceHexUpper(&c)}), <span class="tok-str">"E0A1BCF939654AFDBDC1746EC49832647C19D891F0D1A81FC0C1703B4514BDEA584B512F6908C2C5E9DD18D5CBC1805DE5803FE3B9CA5F193FB8359E91FAB0C3BB40309A292EB1CF49685C65C4A3ADF4F11DB0CD2B6B67FBC174BC2E860E8F769FD3565BBFAD1C845E05A0FED9BE167C240D"</span>);</span> <span class="line" id="L1147"> }</span> <span class="line" id="L1148"> {</span> <span class="line" id="L1149"> <span class="tok-kw">const</span> ad = <span class="tok-str">"Additional data"</span>;</span> <span class="line" id="L1150"> <span class="tok-kw">var</span> c: [m.len + XChaCha20Poly1305.tag_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1151"> XChaCha20Poly1305.encrypt(c[<span class="tok-number">0</span>..m.len], c[m.len..], m, ad, nonce, key);</span> <span class="line" id="L1152"> <span class="tok-kw">var</span> out: [m.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1153"> <span class="tok-kw">try</span> XChaCha20Poly1305.decrypt(out[<span class="tok-number">0</span>..], c[<span class="tok-number">0</span>..m.len], c[m.len..]., ad, nonce, key);</span> <span class="line" id="L1154"> <span class="tok-kw">var</span> buf: [<span class="tok-number">2</span> c.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1155"> <span class="tok-kw">try</span> testing.expectEqualStrings(<span class="tok-kw">try</span> std.fmt.bufPrint(&buf, <span class="tok-str">"{s}"</span>, .{std.fmt.fmtSliceHexUpper(&c)}), <span class="tok-str">"994D2DD32333F48E53650C02C7A2ABB8E018B0836D7175AEC779F52E961780768F815C58F1AA52D211498DB89B9216763F569C9433A6BBFCEFB4D4A49387A4C5207FBB3B5A92B5941294DF30588C6740D39DC16FA1F0E634F7246CF7CDCB978E44347D89381B7A74EB7084F754B90BDE9AAF5A94B8F2A85EFD0B50692AE2D425E234"</span>);</span> <span class="line" id="L1156"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, out[<span class="tok-number">0</span>..], m);</span> <span class="line" id="L1157"> c[<span class="tok-number">0</span>] +%= <span class="tok-number">1</span>;</span> <span class="line" id="L1158"> <span class="tok-kw">try</span> testing.expectError(<span class="tok-kw">error</span>.AuthenticationFailed, XChaCha20Poly1305.decrypt(out[<span class="tok-number">0</span>..], c[<span class="tok-number">0</span>..m.len], c[m.len..].*, ad, nonce, key));</span> <span class="line" id="L1159"> }</span> <span class="line" id="L1160">}</span> <span class="line" id="L1161"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/crypto/aegis.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/aegis.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-comment">//! AEGIS is a very fast authenticated encryption system built on top of the core AES function.</span></span> <span class="line" id="L2"><span class="tok-comment">//!</span></span> <span class="line" id="L3"><span class="tok-comment">//! The AEGIS-128L variant has a 128 bit key, a 128 bit nonce, and processes 256 bit message blocks.</span></span> <span class="line" id="L4"><span class="tok-comment">//! The AEGIS-256 variant has a 256 bit key, a 256 bit nonce, and processes 128 bit message blocks.</span></span> <span class="line" id="L5"><span class="tok-comment">//!</span></span> <span class="line" id="L6"><span class="tok-comment">//! The AEGIS cipher family offers performance that significantly exceeds that of AES-GCM with</span></span> <span class="line" id="L7"><span class="tok-comment">//! hardware support for parallelizable AES block encryption.</span></span> <span class="line" id="L8"><span class="tok-comment">//!</span></span> <span class="line" id="L9"><span class="tok-comment">//! Unlike with AES-GCM, nonces can be safely chosen at random with no practical limit when using AEGIS-256.</span></span> <span class="line" id="L10"><span class="tok-comment">//! AEGIS-128L also allows for more messages to be safely encrypted when using random nonces.</span></span> <span class="line" id="L11"><span class="tok-comment">//!</span></span> <span class="line" id="L12"><span class="tok-comment">//! AEGIS is believed to be key-committing, making it a safer choice than most other AEADs</span></span> <span class="line" id="L13"><span class="tok-comment">//! when the key has low entropy, or can be controlled by an attacker.</span></span> <span class="line" id="L14"><span class="tok-comment">//!</span></span> <span class="line" id="L15"><span class="tok-comment">//! Finally, leaking the state does not leak the key.</span></span> <span class="line" id="L16"><span class="tok-comment">//!</span></span> <span class="line" id="L17"><span class="tok-comment">//! https://datatracker.ietf.org/doc/draft-irtf-cfrg-aegis-aead/</span></span> <span class="line" id="L18"></span> <span class="line" id="L19"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L20"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L21"><span class="tok-kw">const</span> assert = std.debug.assert;</span> <span class="line" id="L22"><span class="tok-kw">const</span> AesBlock = std.crypto.core.aes.Block;</span> <span class="line" id="L23"><span class="tok-kw">const</span> AuthenticationError = std.crypto.errors.AuthenticationError;</span> <span class="line" id="L24"></span> <span class="line" id="L25"><span class="tok-comment">/// AEGIS-128L with a 128-bit authentication tag.</span></span> <span class="line" id="L26"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Aegis128L = Aegis128LGeneric(<span class="tok-number">128</span>);</span> <span class="line" id="L27"></span> <span class="line" id="L28"><span class="tok-comment">/// AEGIS-128L with a 256-bit authentication tag.</span></span> <span class="line" id="L29"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Aegis128L_256 = Aegis128LGeneric(<span class="tok-number">256</span>);</span> <span class="line" id="L30"></span> <span class="line" id="L31"><span class="tok-comment">/// AEGIS-256 with a 128-bit authentication tag.</span></span> <span class="line" id="L32"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Aegis256 = Aegis256Generic(<span class="tok-number">128</span>);</span> <span class="line" id="L33"></span> <span class="line" id="L34"><span class="tok-comment">/// AEGIS-256 with a 256-bit authentication tag.</span></span> <span class="line" id="L35"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Aegis256_256 = Aegis256Generic(<span class="tok-number">256</span>);</span> <span class="line" id="L36"></span> <span class="line" id="L37"><span class="tok-kw">const</span> State128L = <span class="tok-kw">struct</span> {</span> <span class="line" id="L38"> blocks: [<span class="tok-number">8</span>]AesBlock,</span> <span class="line" id="L39"></span> <span class="line" id="L40"> <span class="tok-kw">fn</span> <span class="tok-fn">init</span>(key: [<span class="tok-number">16</span>]<span class="tok-type">u8</span>, nonce: [<span class="tok-number">16</span>]<span class="tok-type">u8</span>) State128L {</span> <span class="line" id="L41"> <span class="tok-kw">const</span> c1 = AesBlock.fromBytes(&[<span class="tok-number">16</span>]<span class="tok-type">u8</span>{ <span class="tok-number">0xdb</span>, <span class="tok-number">0x3d</span>, <span class="tok-number">0x18</span>, <span class="tok-number">0x55</span>, <span class="tok-number">0x6d</span>, <span class="tok-number">0xc2</span>, <span class="tok-number">0x2f</span>, <span class="tok-number">0xf1</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x42</span>, <span class="tok-number">0x73</span>, <span class="tok-number">0xb5</span>, <span class="tok-number">0x28</span>, <span class="tok-number">0xdd</span> });</span> <span class="line" id="L42"> <span class="tok-kw">const</span> c2 = AesBlock.fromBytes(&[<span class="tok-number">16</span>]<span class="tok-type">u8</span>{ <span class="tok-number">0x0</span>, <span class="tok-number">0x1</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x02</span>, <span class="tok-number">0x03</span>, <span class="tok-number">0x05</span>, <span class="tok-number">0x08</span>, <span class="tok-number">0x0d</span>, <span class="tok-number">0x15</span>, <span class="tok-number">0x22</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x59</span>, <span class="tok-number">0x90</span>, <span class="tok-number">0xe9</span>, <span class="tok-number">0x79</span>, <span class="tok-number">0x62</span> });</span> <span class="line" id="L43"> <span class="tok-kw">const</span> key_block = AesBlock.fromBytes(&key);</span> <span class="line" id="L44"> <span class="tok-kw">const</span> nonce_block = AesBlock.fromBytes(&nonce);</span> <span class="line" id="L45"> <span class="tok-kw">const</span> blocks = [<span class="tok-number">8</span>]AesBlock{</span> <span class="line" id="L46"> key_block.xorBlocks(nonce_block),</span> <span class="line" id="L47"> c1,</span> <span class="line" id="L48"> c2,</span> <span class="line" id="L49"> c1,</span> <span class="line" id="L50"> key_block.xorBlocks(nonce_block),</span> <span class="line" id="L51"> key_block.xorBlocks(c2),</span> <span class="line" id="L52"> key_block.xorBlocks(c1),</span> <span class="line" id="L53"> key_block.xorBlocks(c2),</span> <span class="line" id="L54"> };</span> <span class="line" id="L55"> <span class="tok-kw">var</span> state = State128L{ .blocks = blocks };</span> <span class="line" id="L56"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L57"> <span class="tok-kw">while</span> (i < <span class="tok-number">10</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L58"> state.update(nonce_block, key_block);</span> <span class="line" id="L59"> }</span> <span class="line" id="L60"> <span class="tok-kw">return</span> state;</span> <span class="line" id="L61"> }</span> <span class="line" id="L62"></span> <span class="line" id="L63"> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">update</span>(state: State128L, d1: AesBlock, d2: AesBlock) <span class="tok-type">void</span> {</span> <span class="line" id="L64"> <span class="tok-kw">const</span> blocks = &state.blocks;</span> <span class="line" id="L65"> <span class="tok-kw">const</span> tmp = blocks[<span class="tok-number">7</span>];</span> <span class="line" id="L66"> <span class="tok-kw">comptime</span> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">7</span>;</span> <span class="line" id="L67"> <span class="tok-kw">inline</span> <span class="tok-kw">while</span> (i > <span class="tok-number">0</span>) : (i -= <span class="tok-number">1</span>) {</span> <span class="line" id="L68"> blocks[i] = blocks[i - <span class="tok-number">1</span>].encrypt(blocks[i]);</span> <span class="line" id="L69"> }</span> <span class="line" id="L70"> blocks[<span class="tok-number">0</span>] = tmp.encrypt(blocks[<span class="tok-number">0</span>]);</span> <span class="line" id="L71"> blocks[<span class="tok-number">0</span>] = blocks[<span class="tok-number">0</span>].xorBlocks(d1);</span> <span class="line" id="L72"> blocks[<span class="tok-number">4</span>] = blocks[<span class="tok-number">4</span>].xorBlocks(d2);</span> <span class="line" id="L73"> }</span> <span class="line" id="L74"></span> <span class="line" id="L75"> <span class="tok-kw">fn</span> <span class="tok-fn">absorb</span>(state: State128L, src: <span class="tok-kw">const</span> [<span class="tok-number">32</span>]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L76"> <span class="tok-kw">const</span> msg0 = AesBlock.fromBytes(src[<span class="tok-number">0</span>..<span class="tok-number">16</span>]);</span> <span class="line" id="L77"> <span class="tok-kw">const</span> msg1 = AesBlock.fromBytes(src[<span class="tok-number">16</span>..<span class="tok-number">32</span>]);</span> <span class="line" id="L78"> state.update(msg0, msg1);</span> <span class="line" id="L79"> }</span> <span class="line" id="L80"></span> <span class="line" id="L81"> <span class="tok-kw">fn</span> <span class="tok-fn">enc</span>(state: State128L, dst: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>, src: <span class="tok-kw">const</span> [<span class="tok-number">32</span>]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L82"> <span class="tok-kw">const</span> blocks = &state.blocks;</span> <span class="line" id="L83"> <span class="tok-kw">const</span> msg0 = AesBlock.fromBytes(src[<span class="tok-number">0</span>..<span class="tok-number">16</span>]);</span> <span class="line" id="L84"> <span class="tok-kw">const</span> msg1 = AesBlock.fromBytes(src[<span class="tok-number">16</span>..<span class="tok-number">32</span>]);</span> <span class="line" id="L85"> <span class="tok-kw">var</span> tmp0 = msg0.xorBlocks(blocks[<span class="tok-number">6</span>]).xorBlocks(blocks[<span class="tok-number">1</span>]);</span> <span class="line" id="L86"> <span class="tok-kw">var</span> tmp1 = msg1.xorBlocks(blocks[<span class="tok-number">2</span>]).xorBlocks(blocks[<span class="tok-number">5</span>]);</span> <span class="line" id="L87"> tmp0 = tmp0.xorBlocks(blocks[<span class="tok-number">2</span>].andBlocks(blocks[<span class="tok-number">3</span>]));</span> <span class="line" id="L88"> tmp1 = tmp1.xorBlocks(blocks[<span class="tok-number">6</span>].andBlocks(blocks[<span class="tok-number">7</span>]));</span> <span class="line" id="L89"> dst[<span class="tok-number">0</span>..<span class="tok-number">16</span>].* = tmp0.toBytes();</span> <span class="line" id="L90"> dst[<span class="tok-number">16</span>..<span class="tok-number">32</span>].* = tmp1.toBytes();</span> <span class="line" id="L91"> state.update(msg0, msg1);</span> <span class="line" id="L92"> }</span> <span class="line" id="L93"></span> <span class="line" id="L94"> <span class="tok-kw">fn</span> <span class="tok-fn">dec</span>(state: State128L, dst: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>, src: <span class="tok-kw">const</span> [<span class="tok-number">32</span>]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L95"> <span class="tok-kw">const</span> blocks = &state.blocks;</span> <span class="line" id="L96"> <span class="tok-kw">var</span> msg0 = AesBlock.fromBytes(src[<span class="tok-number">0</span>..<span class="tok-number">16</span>]).xorBlocks(blocks[<span class="tok-number">6</span>]).xorBlocks(blocks[<span class="tok-number">1</span>]);</span> <span class="line" id="L97"> <span class="tok-kw">var</span> msg1 = AesBlock.fromBytes(src[<span class="tok-number">16</span>..<span class="tok-number">32</span>]).xorBlocks(blocks[<span class="tok-number">2</span>]).xorBlocks(blocks[<span class="tok-number">5</span>]);</span> <span class="line" id="L98"> msg0 = msg0.xorBlocks(blocks[<span class="tok-number">2</span>].andBlocks(blocks[<span class="tok-number">3</span>]));</span> <span class="line" id="L99"> msg1 = msg1.xorBlocks(blocks[<span class="tok-number">6</span>].andBlocks(blocks[<span class="tok-number">7</span>]));</span> <span class="line" id="L100"> dst[<span class="tok-number">0</span>..<span class="tok-number">16</span>]. = msg0.toBytes();</span> <span class="line" id="L101"> dst[<span class="tok-number">16</span>..<span class="tok-number">32</span>].* = msg1.toBytes();</span> <span class="line" id="L102"> state.update(msg0, msg1);</span> <span class="line" id="L103"> }</span> <span class="line" id="L104"></span> <span class="line" id="L105"> <span class="tok-kw">fn</span> <span class="tok-fn">mac</span>(state: State128L, <span class="tok-kw">comptime</span> tag_bits: <span class="tok-type">u9</span>, adlen: <span class="tok-type">usize</span>, mlen: <span class="tok-type">usize</span>) [tag_bits / <span class="tok-number">8</span>]<span class="tok-type">u8</span> {</span> <span class="line" id="L106"> <span class="tok-kw">const</span> blocks = &state.blocks;</span> <span class="line" id="L107"> <span class="tok-kw">var</span> sizes: [<span class="tok-number">16</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L108"> mem.writeIntLittle(<span class="tok-type">u64</span>, sizes[<span class="tok-number">0</span>..<span class="tok-number">8</span>], adlen <span class="tok-number">8</span>);</span> <span class="line" id="L109"> mem.writeIntLittle(<span class="tok-type">u64</span>, sizes[<span class="tok-number">8</span>..<span class="tok-number">16</span>], mlen * <span class="tok-number">8</span>);</span> <span class="line" id="L110"> <span class="tok-kw">const</span> tmp = AesBlock.fromBytes(&sizes).xorBlocks(blocks[<span class="tok-number">2</span>]);</span> <span class="line" id="L111"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L112"> <span class="tok-kw">while</span> (i < <span class="tok-number">7</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L113"> state.update(tmp, tmp);</span> <span class="line" id="L114"> }</span> <span class="line" id="L115"> <span class="tok-kw">return</span> <span class="tok-kw">switch</span> (tag_bits) {</span> <span class="line" id="L116"> <span class="tok-number">128</span> => blocks[<span class="tok-number">0</span>].xorBlocks(blocks[<span class="tok-number">1</span>]).xorBlocks(blocks[<span class="tok-number">2</span>]).xorBlocks(blocks[<span class="tok-number">3</span>])</span> <span class="line" id="L117"> .xorBlocks(blocks[<span class="tok-number">4</span>]).xorBlocks(blocks[<span class="tok-number">5</span>]).xorBlocks(blocks[<span class="tok-number">6</span>]).toBytes(),</span> <span class="line" id="L118"> <span class="tok-number">256</span> => tag: {</span> <span class="line" id="L119"> <span class="tok-kw">const</span> t1 = blocks[<span class="tok-number">0</span>].xorBlocks(blocks[<span class="tok-number">1</span>]).xorBlocks(blocks[<span class="tok-number">2</span>]).xorBlocks(blocks[<span class="tok-number">3</span>]);</span> <span class="line" id="L120"> <span class="tok-kw">const</span> t2 = blocks[<span class="tok-number">4</span>].xorBlocks(blocks[<span class="tok-number">5</span>]).xorBlocks(blocks[<span class="tok-number">6</span>]).xorBlocks(blocks[<span class="tok-number">7</span>]);</span> <span class="line" id="L121"> <span class="tok-kw">break</span> :tag t1.toBytes() ++ t2.toBytes();</span> <span class="line" id="L122"> },</span> <span class="line" id="L123"> <span class="tok-kw">else</span> => <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L124"> };</span> <span class="line" id="L125"> }</span> <span class="line" id="L126">};</span> <span class="line" id="L127"></span> <span class="line" id="L128"><span class="tok-kw">fn</span> <span class="tok-fn">Aegis128LGeneric</span>(<span class="tok-kw">comptime</span> tag_bits: <span class="tok-type">u9</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L129"> <span class="tok-kw">comptime</span> assert(tag_bits == <span class="tok-number">128</span> <span class="tok-kw">or</span> tag_bits == <span class="tok-number">256</span>); <span class="tok-comment">// tag must be 128 or 256 bits</span> </span> <span class="line" id="L130"></span> <span class="line" id="L131"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L132"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> tag_length = tag_bits / <span class="tok-number">8</span>;</span> <span class="line" id="L133"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> nonce_length = <span class="tok-number">16</span>;</span> <span class="line" id="L134"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> key_length = <span class="tok-number">16</span>;</span> <span class="line" id="L135"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> block_length = <span class="tok-number">32</span>;</span> <span class="line" id="L136"></span> <span class="line" id="L137"> <span class="tok-kw">const</span> State = State128L;</span> <span class="line" id="L138"></span> <span class="line" id="L139"> <span class="tok-comment">/// c: ciphertext: output buffer should be of size m.len</span></span> <span class="line" id="L140"> <span class="tok-comment">/// tag: authentication tag: output MAC</span></span> <span class="line" id="L141"> <span class="tok-comment">/// m: message</span></span> <span class="line" id="L142"> <span class="tok-comment">/// ad: Associated Data</span></span> <span class="line" id="L143"> <span class="tok-comment">/// npub: public nonce</span></span> <span class="line" id="L144"> <span class="tok-comment">/// k: private key</span></span> <span class="line" id="L145"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">encrypt</span>(c: []<span class="tok-type">u8</span>, tag: [tag_length]<span class="tok-type">u8</span>, m: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, ad: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, npub: [nonce_length]<span class="tok-type">u8</span>, key: [key_length]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L146"> assert(c.len == m.len);</span> <span class="line" id="L147"> <span class="tok-kw">var</span> state = State128L.init(key, npub);</span> <span class="line" id="L148"> <span class="tok-kw">var</span> src: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> <span class="tok-kw">align</span>(<span class="tok-number">16</span>) = <span class="tok-null">undefined</span>;</span> <span class="line" id="L149"> <span class="tok-kw">var</span> dst: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> <span class="tok-kw">align</span>(<span class="tok-number">16</span>) = <span class="tok-null">undefined</span>;</span> <span class="line" id="L150"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L151"> <span class="tok-kw">while</span> (i + <span class="tok-number">32</span> <= ad.len) : (i += <span class="tok-number">32</span>) {</span> <span class="line" id="L152"> state.absorb(ad[i..][<span class="tok-number">0</span>..<span class="tok-number">32</span>]);</span> <span class="line" id="L153"> }</span> <span class="line" id="L154"> <span class="tok-kw">if</span> (ad.len % <span class="tok-number">32</span> != <span class="tok-number">0</span>) {</span> <span class="line" id="L155"> <span class="tok-builtin">@memset</span>(src[<span class="tok-number">0</span>..], <span class="tok-number">0</span>);</span> <span class="line" id="L156"> <span class="tok-builtin">@memcpy</span>(src[<span class="tok-number">0</span> .. ad.len % <span class="tok-number">32</span>], ad[i..][<span class="tok-number">0</span> .. ad.len % <span class="tok-number">32</span>]);</span> <span class="line" id="L157"> state.absorb(&src);</span> <span class="line" id="L158"> }</span> <span class="line" id="L159"> i = <span class="tok-number">0</span>;</span> <span class="line" id="L160"> <span class="tok-kw">while</span> (i + <span class="tok-number">32</span> <= m.len) : (i += <span class="tok-number">32</span>) {</span> <span class="line" id="L161"> state.enc(c[i..][<span class="tok-number">0</span>..<span class="tok-number">32</span>], m[i..][<span class="tok-number">0</span>..<span class="tok-number">32</span>]);</span> <span class="line" id="L162"> }</span> <span class="line" id="L163"> <span class="tok-kw">if</span> (m.len % <span class="tok-number">32</span> != <span class="tok-number">0</span>) {</span> <span class="line" id="L164"> <span class="tok-builtin">@memset</span>(src[<span class="tok-number">0</span>..], <span class="tok-number">0</span>);</span> <span class="line" id="L165"> <span class="tok-builtin">@memcpy</span>(src[<span class="tok-number">0</span> .. m.len % <span class="tok-number">32</span>], m[i..][<span class="tok-number">0</span> .. m.len % <span class="tok-number">32</span>]);</span> <span class="line" id="L166"> state.enc(&dst, &src);</span> <span class="line" id="L167"> <span class="tok-builtin">@memcpy</span>(c[i..][<span class="tok-number">0</span> .. m.len % <span class="tok-number">32</span>], dst[<span class="tok-number">0</span> .. m.len % <span class="tok-number">32</span>]);</span> <span class="line" id="L168"> }</span> <span class="line" id="L169"> tag. = state.mac(tag_bits, ad.len, m.len);</span> <span class="line" id="L170"> }</span> <span class="line" id="L171"></span> <span class="line" id="L172"> <span class="tok-comment">/// m: message: output buffer should be of size c.len</span></span> <span class="line" id="L173"> <span class="tok-comment">/// c: ciphertext</span></span> <span class="line" id="L174"> <span class="tok-comment">/// tag: authentication tag</span></span> <span class="line" id="L175"> <span class="tok-comment">/// ad: Associated Data</span></span> <span class="line" id="L176"> <span class="tok-comment">/// npub: public nonce</span></span> <span class="line" id="L177"> <span class="tok-comment">/// k: private key</span></span> <span class="line" id="L178"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">decrypt</span>(m: []<span class="tok-type">u8</span>, c: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, tag: [tag_length]<span class="tok-type">u8</span>, ad: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, npub: [nonce_length]<span class="tok-type">u8</span>, key: [key_length]<span class="tok-type">u8</span>) AuthenticationError!<span class="tok-type">void</span> {</span> <span class="line" id="L179"> assert(c.len == m.len);</span> <span class="line" id="L180"> <span class="tok-kw">var</span> state = State128L.init(key, npub);</span> <span class="line" id="L181"> <span class="tok-kw">var</span> src: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> <span class="tok-kw">align</span>(<span class="tok-number">16</span>) = <span class="tok-null">undefined</span>;</span> <span class="line" id="L182"> <span class="tok-kw">var</span> dst: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> <span class="tok-kw">align</span>(<span class="tok-number">16</span>) = <span class="tok-null">undefined</span>;</span> <span class="line" id="L183"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L184"> <span class="tok-kw">while</span> (i + <span class="tok-number">32</span> <= ad.len) : (i += <span class="tok-number">32</span>) {</span> <span class="line" id="L185"> state.absorb(ad[i..][<span class="tok-number">0</span>..<span class="tok-number">32</span>]);</span> <span class="line" id="L186"> }</span> <span class="line" id="L187"> <span class="tok-kw">if</span> (ad.len % <span class="tok-number">32</span> != <span class="tok-number">0</span>) {</span> <span class="line" id="L188"> <span class="tok-builtin">@memset</span>(src[<span class="tok-number">0</span>..], <span class="tok-number">0</span>);</span> <span class="line" id="L189"> <span class="tok-builtin">@memcpy</span>(src[<span class="tok-number">0</span> .. ad.len % <span class="tok-number">32</span>], ad[i..][<span class="tok-number">0</span> .. ad.len % <span class="tok-number">32</span>]);</span> <span class="line" id="L190"> state.absorb(&src);</span> <span class="line" id="L191"> }</span> <span class="line" id="L192"> i = <span class="tok-number">0</span>;</span> <span class="line" id="L193"> <span class="tok-kw">while</span> (i + <span class="tok-number">32</span> <= m.len) : (i += <span class="tok-number">32</span>) {</span> <span class="line" id="L194"> state.dec(m[i..][<span class="tok-number">0</span>..<span class="tok-number">32</span>], c[i..][<span class="tok-number">0</span>..<span class="tok-number">32</span>]);</span> <span class="line" id="L195"> }</span> <span class="line" id="L196"> <span class="tok-kw">if</span> (m.len % <span class="tok-number">32</span> != <span class="tok-number">0</span>) {</span> <span class="line" id="L197"> <span class="tok-builtin">@memset</span>(src[<span class="tok-number">0</span>..], <span class="tok-number">0</span>);</span> <span class="line" id="L198"> <span class="tok-builtin">@memcpy</span>(src[<span class="tok-number">0</span> .. m.len % <span class="tok-number">32</span>], c[i..][<span class="tok-number">0</span> .. m.len % <span class="tok-number">32</span>]);</span> <span class="line" id="L199"> state.dec(&dst, &src);</span> <span class="line" id="L200"> <span class="tok-builtin">@memcpy</span>(m[i..][<span class="tok-number">0</span> .. m.len % <span class="tok-number">32</span>], dst[<span class="tok-number">0</span> .. m.len % <span class="tok-number">32</span>]);</span> <span class="line" id="L201"> <span class="tok-builtin">@memset</span>(dst[<span class="tok-number">0</span> .. m.len % <span class="tok-number">32</span>], <span class="tok-number">0</span>);</span> <span class="line" id="L202"> <span class="tok-kw">const</span> blocks = &state.blocks;</span> <span class="line" id="L203"> blocks[<span class="tok-number">0</span>] = blocks[<span class="tok-number">0</span>].xorBlocks(AesBlock.fromBytes(dst[<span class="tok-number">0</span>..<span class="tok-number">16</span>]));</span> <span class="line" id="L204"> blocks[<span class="tok-number">4</span>] = blocks[<span class="tok-number">4</span>].xorBlocks(AesBlock.fromBytes(dst[<span class="tok-number">16</span>..<span class="tok-number">32</span>]));</span> <span class="line" id="L205"> }</span> <span class="line" id="L206"> <span class="tok-kw">const</span> computed_tag = state.mac(tag_bits, ad.len, m.len);</span> <span class="line" id="L207"> <span class="tok-kw">var</span> acc: <span class="tok-type">u8</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L208"> <span class="tok-kw">for</span> (computed_tag, <span class="tok-number">0</span>..) \|_, j\| {</span> <span class="line" id="L209"> acc \|= (computed_tag[j] ^ tag[j]);</span> <span class="line" id="L210"> }</span> <span class="line" id="L211"> <span class="tok-kw">if</span> (acc != <span class="tok-number">0</span>) {</span> <span class="line" id="L212"> <span class="tok-builtin">@memset</span>(m, <span class="tok-null">undefined</span>);</span> <span class="line" id="L213"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.AuthenticationFailed;</span> <span class="line" id="L214"> }</span> <span class="line" id="L215"> }</span> <span class="line" id="L216"> };</span> <span class="line" id="L217">}</span> <span class="line" id="L218"></span> <span class="line" id="L219"><span class="tok-kw">const</span> State256 = <span class="tok-kw">struct</span> {</span> <span class="line" id="L220"> blocks: [<span class="tok-number">6</span>]AesBlock,</span> <span class="line" id="L221"></span> <span class="line" id="L222"> <span class="tok-kw">fn</span> <span class="tok-fn">init</span>(key: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>, nonce: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>) State256 {</span> <span class="line" id="L223"> <span class="tok-kw">const</span> c1 = AesBlock.fromBytes(&[<span class="tok-number">16</span>]<span class="tok-type">u8</span>{ <span class="tok-number">0xdb</span>, <span class="tok-number">0x3d</span>, <span class="tok-number">0x18</span>, <span class="tok-number">0x55</span>, <span class="tok-number">0x6d</span>, <span class="tok-number">0xc2</span>, <span class="tok-number">0x2f</span>, <span class="tok-number">0xf1</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x42</span>, <span class="tok-number">0x73</span>, <span class="tok-number">0xb5</span>, <span class="tok-number">0x28</span>, <span class="tok-number">0xdd</span> });</span> <span class="line" id="L224"> <span class="tok-kw">const</span> c2 = AesBlock.fromBytes(&[<span class="tok-number">16</span>]<span class="tok-type">u8</span>{ <span class="tok-number">0x0</span>, <span class="tok-number">0x1</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x02</span>, <span class="tok-number">0x03</span>, <span class="tok-number">0x05</span>, <span class="tok-number">0x08</span>, <span class="tok-number">0x0d</span>, <span class="tok-number">0x15</span>, <span class="tok-number">0x22</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x59</span>, <span class="tok-number">0x90</span>, <span class="tok-number">0xe9</span>, <span class="tok-number">0x79</span>, <span class="tok-number">0x62</span> });</span> <span class="line" id="L225"> <span class="tok-kw">const</span> key_block1 = AesBlock.fromBytes(key[<span class="tok-number">0</span>..<span class="tok-number">16</span>]);</span> <span class="line" id="L226"> <span class="tok-kw">const</span> key_block2 = AesBlock.fromBytes(key[<span class="tok-number">16</span>..<span class="tok-number">32</span>]);</span> <span class="line" id="L227"> <span class="tok-kw">const</span> nonce_block1 = AesBlock.fromBytes(nonce[<span class="tok-number">0</span>..<span class="tok-number">16</span>]);</span> <span class="line" id="L228"> <span class="tok-kw">const</span> nonce_block2 = AesBlock.fromBytes(nonce[<span class="tok-number">16</span>..<span class="tok-number">32</span>]);</span> <span class="line" id="L229"> <span class="tok-kw">const</span> kxn1 = key_block1.xorBlocks(nonce_block1);</span> <span class="line" id="L230"> <span class="tok-kw">const</span> kxn2 = key_block2.xorBlocks(nonce_block2);</span> <span class="line" id="L231"> <span class="tok-kw">const</span> blocks = [<span class="tok-number">6</span>]AesBlock{</span> <span class="line" id="L232"> kxn1,</span> <span class="line" id="L233"> kxn2,</span> <span class="line" id="L234"> c1,</span> <span class="line" id="L235"> c2,</span> <span class="line" id="L236"> key_block1.xorBlocks(c2),</span> <span class="line" id="L237"> key_block2.xorBlocks(c1),</span> <span class="line" id="L238"> };</span> <span class="line" id="L239"> <span class="tok-kw">var</span> state = State256{ .blocks = blocks };</span> <span class="line" id="L240"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L241"> <span class="tok-kw">while</span> (i < <span class="tok-number">4</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L242"> state.update(key_block1);</span> <span class="line" id="L243"> state.update(key_block2);</span> <span class="line" id="L244"> state.update(kxn1);</span> <span class="line" id="L245"> state.update(kxn2);</span> <span class="line" id="L246"> }</span> <span class="line" id="L247"> <span class="tok-kw">return</span> state;</span> <span class="line" id="L248"> }</span> <span class="line" id="L249"></span> <span class="line" id="L250"> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">update</span>(state: State256, d: AesBlock) <span class="tok-type">void</span> {</span> <span class="line" id="L251"> <span class="tok-kw">const</span> blocks = &state.blocks;</span> <span class="line" id="L252"> <span class="tok-kw">const</span> tmp = blocks[<span class="tok-number">5</span>].encrypt(blocks[<span class="tok-number">0</span>]);</span> <span class="line" id="L253"> <span class="tok-kw">comptime</span> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">5</span>;</span> <span class="line" id="L254"> <span class="tok-kw">inline</span> <span class="tok-kw">while</span> (i > <span class="tok-number">0</span>) : (i -= <span class="tok-number">1</span>) {</span> <span class="line" id="L255"> blocks[i] = blocks[i - <span class="tok-number">1</span>].encrypt(blocks[i]);</span> <span class="line" id="L256"> }</span> <span class="line" id="L257"> blocks[<span class="tok-number">0</span>] = tmp.xorBlocks(d);</span> <span class="line" id="L258"> }</span> <span class="line" id="L259"></span> <span class="line" id="L260"> <span class="tok-kw">fn</span> <span class="tok-fn">absorb</span>(state: State256, src: <span class="tok-kw">const</span> [<span class="tok-number">16</span>]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L261"> <span class="tok-kw">const</span> msg = AesBlock.fromBytes(src);</span> <span class="line" id="L262"> state.update(msg);</span> <span class="line" id="L263"> }</span> <span class="line" id="L264"></span> <span class="line" id="L265"> <span class="tok-kw">fn</span> <span class="tok-fn">enc</span>(state: State256, dst: [<span class="tok-number">16</span>]<span class="tok-type">u8</span>, src: <span class="tok-kw">const</span> [<span class="tok-number">16</span>]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L266"> <span class="tok-kw">const</span> blocks = &state.blocks;</span> <span class="line" id="L267"> <span class="tok-kw">const</span> msg = AesBlock.fromBytes(src);</span> <span class="line" id="L268"> <span class="tok-kw">var</span> tmp = msg.xorBlocks(blocks[<span class="tok-number">5</span>]).xorBlocks(blocks[<span class="tok-number">4</span>]).xorBlocks(blocks[<span class="tok-number">1</span>]);</span> <span class="line" id="L269"> tmp = tmp.xorBlocks(blocks[<span class="tok-number">2</span>].andBlocks(blocks[<span class="tok-number">3</span>]));</span> <span class="line" id="L270"> dst.* = tmp.toBytes();</span> <span class="line" id="L271"> state.update(msg);</span> <span class="line" id="L272"> }</span> <span class="line" id="L273"></span> <span class="line" id="L274"> <span class="tok-kw">fn</span> <span class="tok-fn">dec</span>(state: State256, dst: [<span class="tok-number">16</span>]<span class="tok-type">u8</span>, src: <span class="tok-kw">const</span> [<span class="tok-number">16</span>]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L275"> <span class="tok-kw">const</span> blocks = &state.blocks;</span> <span class="line" id="L276"> <span class="tok-kw">var</span> msg = AesBlock.fromBytes(src).xorBlocks(blocks[<span class="tok-number">5</span>]).xorBlocks(blocks[<span class="tok-number">4</span>]).xorBlocks(blocks[<span class="tok-number">1</span>]);</span> <span class="line" id="L277"> msg = msg.xorBlocks(blocks[<span class="tok-number">2</span>].andBlocks(blocks[<span class="tok-number">3</span>]));</span> <span class="line" id="L278"> dst. = msg.toBytes();</span> <span class="line" id="L279"> state.update(msg);</span> <span class="line" id="L280"> }</span> <span class="line" id="L281"></span> <span class="line" id="L282"> <span class="tok-kw">fn</span> <span class="tok-fn">mac</span>(state: State256, <span class="tok-kw">comptime</span> tag_bits: <span class="tok-type">u9</span>, adlen: <span class="tok-type">usize</span>, mlen: <span class="tok-type">usize</span>) [tag_bits / <span class="tok-number">8</span>]<span class="tok-type">u8</span> {</span> <span class="line" id="L283"> <span class="tok-kw">const</span> blocks = &state.blocks;</span> <span class="line" id="L284"> <span class="tok-kw">var</span> sizes: [<span class="tok-number">16</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L285"> mem.writeIntLittle(<span class="tok-type">u64</span>, sizes[<span class="tok-number">0</span>..<span class="tok-number">8</span>], adlen <span class="tok-number">8</span>);</span> <span class="line" id="L286"> mem.writeIntLittle(<span class="tok-type">u64</span>, sizes[<span class="tok-number">8</span>..<span class="tok-number">16</span>], mlen * <span class="tok-number">8</span>);</span> <span class="line" id="L287"> <span class="tok-kw">const</span> tmp = AesBlock.fromBytes(&sizes).xorBlocks(blocks[<span class="tok-number">3</span>]);</span> <span class="line" id="L288"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L289"> <span class="tok-kw">while</span> (i < <span class="tok-number">7</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L290"> state.update(tmp);</span> <span class="line" id="L291"> }</span> <span class="line" id="L292"> <span class="tok-kw">return</span> <span class="tok-kw">switch</span> (tag_bits) {</span> <span class="line" id="L293"> <span class="tok-number">128</span> => blocks[<span class="tok-number">0</span>].xorBlocks(blocks[<span class="tok-number">1</span>]).xorBlocks(blocks[<span class="tok-number">2</span>]).xorBlocks(blocks[<span class="tok-number">3</span>])</span> <span class="line" id="L294"> .xorBlocks(blocks[<span class="tok-number">4</span>]).xorBlocks(blocks[<span class="tok-number">5</span>]).toBytes(),</span> <span class="line" id="L295"> <span class="tok-number">256</span> => tag: {</span> <span class="line" id="L296"> <span class="tok-kw">const</span> t1 = blocks[<span class="tok-number">0</span>].xorBlocks(blocks[<span class="tok-number">1</span>]).xorBlocks(blocks[<span class="tok-number">2</span>]);</span> <span class="line" id="L297"> <span class="tok-kw">const</span> t2 = blocks[<span class="tok-number">3</span>].xorBlocks(blocks[<span class="tok-number">4</span>]).xorBlocks(blocks[<span class="tok-number">5</span>]);</span> <span class="line" id="L298"> <span class="tok-kw">break</span> :tag t1.toBytes() ++ t2.toBytes();</span> <span class="line" id="L299"> },</span> <span class="line" id="L300"> <span class="tok-kw">else</span> => <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L301"> };</span> <span class="line" id="L302"> }</span> <span class="line" id="L303">};</span> <span class="line" id="L304"></span> <span class="line" id="L305"><span class="tok-comment">/// AEGIS is a very fast authenticated encryption system built on top of the core AES function.</span></span> <span class="line" id="L306"><span class="tok-comment">///</span></span> <span class="line" id="L307"><span class="tok-comment">/// The 256 bit variant of AEGIS has a 256 bit key, a 256 bit nonce, and processes 128 bit message blocks.</span></span> <span class="line" id="L308"><span class="tok-comment">///</span></span> <span class="line" id="L309"><span class="tok-comment">/// https://datatracker.ietf.org/doc/draft-irtf-cfrg-aegis-aead/</span></span> <span class="line" id="L310"><span class="tok-kw">fn</span> <span class="tok-fn">Aegis256Generic</span>(<span class="tok-kw">comptime</span> tag_bits: <span class="tok-type">u9</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L311"> <span class="tok-kw">comptime</span> assert(tag_bits == <span class="tok-number">128</span> <span class="tok-kw">or</span> tag_bits == <span class="tok-number">256</span>); <span class="tok-comment">// tag must be 128 or 256 bits</span> </span> <span class="line" id="L312"></span> <span class="line" id="L313"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L314"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> tag_length = tag_bits / <span class="tok-number">8</span>;</span> <span class="line" id="L315"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> nonce_length = <span class="tok-number">32</span>;</span> <span class="line" id="L316"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> key_length = <span class="tok-number">32</span>;</span> <span class="line" id="L317"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> block_length = <span class="tok-number">16</span>;</span> <span class="line" id="L318"></span> <span class="line" id="L319"> <span class="tok-kw">const</span> State = State256;</span> <span class="line" id="L320"></span> <span class="line" id="L321"> <span class="tok-comment">/// c: ciphertext: output buffer should be of size m.len</span></span> <span class="line" id="L322"> <span class="tok-comment">/// tag: authentication tag: output MAC</span></span> <span class="line" id="L323"> <span class="tok-comment">/// m: message</span></span> <span class="line" id="L324"> <span class="tok-comment">/// ad: Associated Data</span></span> <span class="line" id="L325"> <span class="tok-comment">/// npub: public nonce</span></span> <span class="line" id="L326"> <span class="tok-comment">/// k: private key</span></span> <span class="line" id="L327"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">encrypt</span>(c: []<span class="tok-type">u8</span>, tag: [tag_length]<span class="tok-type">u8</span>, m: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, ad: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, npub: [nonce_length]<span class="tok-type">u8</span>, key: [key_length]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L328"> assert(c.len == m.len);</span> <span class="line" id="L329"> <span class="tok-kw">var</span> state = State256.init(key, npub);</span> <span class="line" id="L330"> <span class="tok-kw">var</span> src: [<span class="tok-number">16</span>]<span class="tok-type">u8</span> <span class="tok-kw">align</span>(<span class="tok-number">16</span>) = <span class="tok-null">undefined</span>;</span> <span class="line" id="L331"> <span class="tok-kw">var</span> dst: [<span class="tok-number">16</span>]<span class="tok-type">u8</span> <span class="tok-kw">align</span>(<span class="tok-number">16</span>) = <span class="tok-null">undefined</span>;</span> <span class="line" id="L332"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L333"> <span class="tok-kw">while</span> (i + <span class="tok-number">16</span> <= ad.len) : (i += <span class="tok-number">16</span>) {</span> <span class="line" id="L334"> state.enc(&dst, ad[i..][<span class="tok-number">0</span>..<span class="tok-number">16</span>]);</span> <span class="line" id="L335"> }</span> <span class="line" id="L336"> <span class="tok-kw">if</span> (ad.len % <span class="tok-number">16</span> != <span class="tok-number">0</span>) {</span> <span class="line" id="L337"> <span class="tok-builtin">@memset</span>(src[<span class="tok-number">0</span>..], <span class="tok-number">0</span>);</span> <span class="line" id="L338"> <span class="tok-builtin">@memcpy</span>(src[<span class="tok-number">0</span> .. ad.len % <span class="tok-number">16</span>], ad[i..][<span class="tok-number">0</span> .. ad.len % <span class="tok-number">16</span>]);</span> <span class="line" id="L339"> state.enc(&dst, &src);</span> <span class="line" id="L340"> }</span> <span class="line" id="L341"> i = <span class="tok-number">0</span>;</span> <span class="line" id="L342"> <span class="tok-kw">while</span> (i + <span class="tok-number">16</span> <= m.len) : (i += <span class="tok-number">16</span>) {</span> <span class="line" id="L343"> state.enc(c[i..][<span class="tok-number">0</span>..<span class="tok-number">16</span>], m[i..][<span class="tok-number">0</span>..<span class="tok-number">16</span>]);</span> <span class="line" id="L344"> }</span> <span class="line" id="L345"> <span class="tok-kw">if</span> (m.len % <span class="tok-number">16</span> != <span class="tok-number">0</span>) {</span> <span class="line" id="L346"> <span class="tok-builtin">@memset</span>(src[<span class="tok-number">0</span>..], <span class="tok-number">0</span>);</span> <span class="line" id="L347"> <span class="tok-builtin">@memcpy</span>(src[<span class="tok-number">0</span> .. m.len % <span class="tok-number">16</span>], m[i..][<span class="tok-number">0</span> .. m.len % <span class="tok-number">16</span>]);</span> <span class="line" id="L348"> state.enc(&dst, &src);</span> <span class="line" id="L349"> <span class="tok-builtin">@memcpy</span>(c[i..][<span class="tok-number">0</span> .. m.len % <span class="tok-number">16</span>], dst[<span class="tok-number">0</span> .. m.len % <span class="tok-number">16</span>]);</span> <span class="line" id="L350"> }</span> <span class="line" id="L351"> tag. = state.mac(tag_bits, ad.len, m.len);</span> <span class="line" id="L352"> }</span> <span class="line" id="L353"></span> <span class="line" id="L354"> <span class="tok-comment">/// m: message: output buffer should be of size c.len</span></span> <span class="line" id="L355"> <span class="tok-comment">/// c: ciphertext</span></span> <span class="line" id="L356"> <span class="tok-comment">/// tag: authentication tag</span></span> <span class="line" id="L357"> <span class="tok-comment">/// ad: Associated Data</span></span> <span class="line" id="L358"> <span class="tok-comment">/// npub: public nonce</span></span> <span class="line" id="L359"> <span class="tok-comment">/// k: private key</span></span> <span class="line" id="L360"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">decrypt</span>(m: []<span class="tok-type">u8</span>, c: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, tag: [tag_length]<span class="tok-type">u8</span>, ad: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, npub: [nonce_length]<span class="tok-type">u8</span>, key: [key_length]<span class="tok-type">u8</span>) AuthenticationError!<span class="tok-type">void</span> {</span> <span class="line" id="L361"> assert(c.len == m.len);</span> <span class="line" id="L362"> <span class="tok-kw">var</span> state = State256.init(key, npub);</span> <span class="line" id="L363"> <span class="tok-kw">var</span> src: [<span class="tok-number">16</span>]<span class="tok-type">u8</span> <span class="tok-kw">align</span>(<span class="tok-number">16</span>) = <span class="tok-null">undefined</span>;</span> <span class="line" id="L364"> <span class="tok-kw">var</span> dst: [<span class="tok-number">16</span>]<span class="tok-type">u8</span> <span class="tok-kw">align</span>(<span class="tok-number">16</span>) = <span class="tok-null">undefined</span>;</span> <span class="line" id="L365"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L366"> <span class="tok-kw">while</span> (i + <span class="tok-number">16</span> <= ad.len) : (i += <span class="tok-number">16</span>) {</span> <span class="line" id="L367"> state.enc(&dst, ad[i..][<span class="tok-number">0</span>..<span class="tok-number">16</span>]);</span> <span class="line" id="L368"> }</span> <span class="line" id="L369"> <span class="tok-kw">if</span> (ad.len % <span class="tok-number">16</span> != <span class="tok-number">0</span>) {</span> <span class="line" id="L370"> <span class="tok-builtin">@memset</span>(src[<span class="tok-number">0</span>..], <span class="tok-number">0</span>);</span> <span class="line" id="L371"> <span class="tok-builtin">@memcpy</span>(src[<span class="tok-number">0</span> .. ad.len % <span class="tok-number">16</span>], ad[i..][<span class="tok-number">0</span> .. ad.len % <span class="tok-number">16</span>]);</span> <span class="line" id="L372"> state.enc(&dst, &src);</span> <span class="line" id="L373"> }</span> <span class="line" id="L374"> i = <span class="tok-number">0</span>;</span> <span class="line" id="L375"> <span class="tok-kw">while</span> (i + <span class="tok-number">16</span> <= m.len) : (i += <span class="tok-number">16</span>) {</span> <span class="line" id="L376"> state.dec(m[i..][<span class="tok-number">0</span>..<span class="tok-number">16</span>], c[i..][<span class="tok-number">0</span>..<span class="tok-number">16</span>]);</span> <span class="line" id="L377"> }</span> <span class="line" id="L378"> <span class="tok-kw">if</span> (m.len % <span class="tok-number">16</span> != <span class="tok-number">0</span>) {</span> <span class="line" id="L379"> <span class="tok-builtin">@memset</span>(src[<span class="tok-number">0</span>..], <span class="tok-number">0</span>);</span> <span class="line" id="L380"> <span class="tok-builtin">@memcpy</span>(src[<span class="tok-number">0</span> .. m.len % <span class="tok-number">16</span>], c[i..][<span class="tok-number">0</span> .. m.len % <span class="tok-number">16</span>]);</span> <span class="line" id="L381"> state.dec(&dst, &src);</span> <span class="line" id="L382"> <span class="tok-builtin">@memcpy</span>(m[i..][<span class="tok-number">0</span> .. m.len % <span class="tok-number">16</span>], dst[<span class="tok-number">0</span> .. m.len % <span class="tok-number">16</span>]);</span> <span class="line" id="L383"> <span class="tok-builtin">@memset</span>(dst[<span class="tok-number">0</span> .. m.len % <span class="tok-number">16</span>], <span class="tok-number">0</span>);</span> <span class="line" id="L384"> <span class="tok-kw">const</span> blocks = &state.blocks;</span> <span class="line" id="L385"> blocks[<span class="tok-number">0</span>] = blocks[<span class="tok-number">0</span>].xorBlocks(AesBlock.fromBytes(&dst));</span> <span class="line" id="L386"> }</span> <span class="line" id="L387"> <span class="tok-kw">const</span> computed_tag = state.mac(tag_bits, ad.len, m.len);</span> <span class="line" id="L388"> <span class="tok-kw">var</span> acc: <span class="tok-type">u8</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L389"> <span class="tok-kw">for</span> (computed_tag, <span class="tok-number">0</span>..) \|_, j\| {</span> <span class="line" id="L390"> acc \|= (computed_tag[j] ^ tag[j]);</span> <span class="line" id="L391"> }</span> <span class="line" id="L392"> <span class="tok-kw">if</span> (acc != <span class="tok-number">0</span>) {</span> <span class="line" id="L393"> <span class="tok-builtin">@memset</span>(m, <span class="tok-null">undefined</span>);</span> <span class="line" id="L394"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.AuthenticationFailed;</span> <span class="line" id="L395"> }</span> <span class="line" id="L396"> }</span> <span class="line" id="L397"> };</span> <span class="line" id="L398">}</span> <span class="line" id="L399"></span> <span class="line" id="L400"><span class="tok-comment">/// The `Aegis128LMac` message authentication function outputs 256 bit tags.</span></span> <span class="line" id="L401"><span class="tok-comment">/// In addition to being extremely fast, its large state, non-linearity</span></span> <span class="line" id="L402"><span class="tok-comment">/// and non-invertibility provides the following properties:</span></span> <span class="line" id="L403"><span class="tok-comment">/// - 128 bit security, stronger than GHash/Polyval/Poly1305.</span></span> <span class="line" id="L404"><span class="tok-comment">/// - Recovering the secret key from the state would require ~2^128 attempts,</span></span> <span class="line" id="L405"><span class="tok-comment">/// which is infeasible for any practical adversary.</span></span> <span class="line" id="L406"><span class="tok-comment">/// - It has a large security margin against internal collisions.</span></span> <span class="line" id="L407"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Aegis128LMac = AegisMac(Aegis128L_256);</span> <span class="line" id="L408"></span> <span class="line" id="L409"><span class="tok-comment">/// The `Aegis256Mac` message authentication function has a 256-bit key size,</span></span> <span class="line" id="L410"><span class="tok-comment">/// and outputs 256 bit tags. Unless theoretical multi-target attacks are a</span></span> <span class="line" id="L411"><span class="tok-comment">/// concern, the AEGIS-128L variant should be preferred.</span></span> <span class="line" id="L412"><span class="tok-comment">/// AEGIS' large state, non-linearity and non-invertibility provides the</span></span> <span class="line" id="L413"><span class="tok-comment">/// following properties:</span></span> <span class="line" id="L414"><span class="tok-comment">/// - More than 128 bit security against forgery.</span></span> <span class="line" id="L415"><span class="tok-comment">/// - Recovering the secret key from the state would require ~2^256 attempts,</span></span> <span class="line" id="L416"><span class="tok-comment">/// which is infeasible for any practical adversary.</span></span> <span class="line" id="L417"><span class="tok-comment">/// - It has a large security margin against internal collisions.</span></span> <span class="line" id="L418"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Aegis256Mac = AegisMac(Aegis256_256);</span> <span class="line" id="L419"></span> <span class="line" id="L420"><span class="tok-comment">/// Aegis128L MAC with a 128-bit output.</span></span> <span class="line" id="L421"><span class="tok-comment">/// A MAC with a 128-bit output is not safe unless the number of messages</span></span> <span class="line" id="L422"><span class="tok-comment">/// authenticated with the same key remains small.</span></span> <span class="line" id="L423"><span class="tok-comment">/// After 2^48 messages, the probability of a collision is already ~ 2^-33.</span></span> <span class="line" id="L424"><span class="tok-comment">/// If unsure, use the Aegis128LMac type, that has a 256 bit output.</span></span> <span class="line" id="L425"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Aegis128LMac_128 = AegisMac(Aegis128L);</span> <span class="line" id="L426"></span> <span class="line" id="L427"><span class="tok-comment">/// Aegis256 MAC with a 128-bit output.</span></span> <span class="line" id="L428"><span class="tok-comment">/// A MAC with a 128-bit output is not safe unless the number of messages</span></span> <span class="line" id="L429"><span class="tok-comment">/// authenticated with the same key remains small.</span></span> <span class="line" id="L430"><span class="tok-comment">/// After 2^48 messages, the probability of a collision is already ~ 2^-33.</span></span> <span class="line" id="L431"><span class="tok-comment">/// If unsure, use the Aegis256Mac type, that has a 256 bit output.</span></span> <span class="line" id="L432"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Aegis256Mac_128 = AegisMac(Aegis256);</span> <span class="line" id="L433"></span> <span class="line" id="L434"><span class="tok-kw">fn</span> <span class="tok-fn">AegisMac</span>(<span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L435"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L436"> <span class="tok-kw">const</span> Self = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L437"></span> <span class="line" id="L438"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> mac_length = T.tag_length;</span> <span class="line" id="L439"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> key_length = T.key_length;</span> <span class="line" id="L440"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> block_length = T.block_length;</span> <span class="line" id="L441"></span> <span class="line" id="L442"> state: T.State,</span> <span class="line" id="L443"> buf: [block_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>,</span> <span class="line" id="L444"> off: <span class="tok-type">usize</span> = <span class="tok-number">0</span>,</span> <span class="line" id="L445"> msg_len: <span class="tok-type">usize</span> = <span class="tok-number">0</span>,</span> <span class="line" id="L446"></span> <span class="line" id="L447"> <span class="tok-comment">/// Initialize a state for the MAC function</span></span> <span class="line" id="L448"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">init</span>(key: <span class="tok-kw">const</span> [key_length]<span class="tok-type">u8</span>) Self {</span> <span class="line" id="L449"> <span class="tok-kw">const</span> nonce = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} * T.nonce_length;</span> <span class="line" id="L450"> <span class="tok-kw">return</span> Self{</span> <span class="line" id="L451"> .state = T.State.init(key., nonce),</span> <span class="line" id="L452"> };</span> <span class="line" id="L453"> }</span> <span class="line" id="L454"></span> <span class="line" id="L455"> <span class="tok-comment">/// Add data to the state</span></span> <span class="line" id="L456"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">update</span>(self: Self, b: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L457"> self.msg_len += b.len;</span> <span class="line" id="L458"></span> <span class="line" id="L459"> <span class="tok-kw">const</span> len_partial = <span class="tok-builtin">@min</span>(b.len, block_length - self.off);</span> <span class="line" id="L460"> <span class="tok-builtin">@memcpy</span>(self.buf[self.off..][<span class="tok-number">0</span>..len_partial], b[<span class="tok-number">0</span>..len_partial]);</span> <span class="line" id="L461"> self.off += len_partial;</span> <span class="line" id="L462"> <span class="tok-kw">if</span> (self.off < block_length) {</span> <span class="line" id="L463"> <span class="tok-kw">return</span>;</span> <span class="line" id="L464"> }</span> <span class="line" id="L465"> self.state.absorb(&self.buf);</span> <span class="line" id="L466"></span> <span class="line" id="L467"> <span class="tok-kw">var</span> i = len_partial;</span> <span class="line" id="L468"> self.off = <span class="tok-number">0</span>;</span> <span class="line" id="L469"> <span class="tok-kw">while</span> (i + block_length <= b.len) : (i += block_length) {</span> <span class="line" id="L470"> self.state.absorb(b[i..][<span class="tok-number">0</span>..block_length]);</span> <span class="line" id="L471"> }</span> <span class="line" id="L472"> <span class="tok-kw">if</span> (i != b.len) {</span> <span class="line" id="L473"> self.off = b.len - i;</span> <span class="line" id="L474"> <span class="tok-builtin">@memcpy</span>(self.buf[<span class="tok-number">0</span>..self.off], b[i..]);</span> <span class="line" id="L475"> }</span> <span class="line" id="L476"> }</span> <span class="line" id="L477"></span> <span class="line" id="L478"> <span class="tok-comment">/// Return an authentication tag for the current state</span></span> <span class="line" id="L479"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">final</span>(self: Self, out: [mac_length]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L480"> <span class="tok-kw">if</span> (self.off > <span class="tok-number">0</span>) {</span> <span class="line" id="L481"> <span class="tok-kw">var</span> pad = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} ** block_length;</span> <span class="line" id="L482"> <span class="tok-builtin">@memcpy</span>(pad[<span class="tok-number">0</span>..self.off], self.buf[<span class="tok-number">0</span>..self.off]);</span> <span class="line" id="L483"> self.state.absorb(&pad);</span> <span class="line" id="L484"> }</span> <span class="line" id="L485"> out.* = self.state.mac(T.tag_length * <span class="tok-number">8</span>, self.msg_len, <span class="tok-number">0</span>);</span> <span class="line" id="L486"> }</span> <span class="line" id="L487"></span> <span class="line" id="L488"> <span class="tok-comment">/// Return an authentication tag for a message and a key</span></span> <span class="line" id="L489"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">create</span>(out: [mac_length]<span class="tok-type">u8</span>, msg: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, key: <span class="tok-kw">const</span> [key_length]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L490"> <span class="tok-kw">var</span> ctx = Self.init(key);</span> <span class="line" id="L491"> ctx.update(msg);</span> <span class="line" id="L492"> ctx.final(out);</span> <span class="line" id="L493"> }</span> <span class="line" id="L494"></span> <span class="line" id="L495"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Error = <span class="tok-kw">error</span>{};</span> <span class="line" id="L496"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Writer = std.io.Writer(Self, Error, write);</span> <span class="line" id="L497"></span> <span class="line" id="L498"> <span class="tok-kw">fn</span> <span class="tok-fn">write</span>(self: Self, bytes: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) Error!<span class="tok-type">usize</span> {</span> <span class="line" id="L499"> self.update(bytes);</span> <span class="line" id="L500"> <span class="tok-kw">return</span> bytes.len;</span> <span class="line" id="L501"> }</span> <span class="line" id="L502"></span> <span class="line" id="L503"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">writer</span>(self: Self) Writer {</span> <span class="line" id="L504"> <span class="tok-kw">return</span> .{ .context = self };</span> <span class="line" id="L505"> }</span> <span class="line" id="L506"> };</span> <span class="line" id="L507">}</span> <span class="line" id="L508"></span> <span class="line" id="L509"><span class="tok-kw">const</span> htest = <span class="tok-builtin">@import</span>(<span class="tok-str">"test.zig"</span>);</span> <span class="line" id="L510"><span class="tok-kw">const</span> testing = std.testing;</span> <span class="line" id="L511"></span> <span class="line" id="L512"><span class="tok-kw">test</span> <span class="tok-str">"Aegis128L test vector 1"</span> {</span> <span class="line" id="L513"> <span class="tok-kw">const</span> key: [Aegis128L.key_length]<span class="tok-type">u8</span> = [_]<span class="tok-type">u8</span>{ <span class="tok-number">0x10</span>, <span class="tok-number">0x01</span> } ++ [_]<span class="tok-type">u8</span>{<span class="tok-number">0x00</span>} * <span class="tok-number">14</span>;</span> <span class="line" id="L514"> <span class="tok-kw">const</span> nonce: [Aegis128L.nonce_length]<span class="tok-type">u8</span> = [_]<span class="tok-type">u8</span>{ <span class="tok-number">0x10</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x02</span> } ++ [_]<span class="tok-type">u8</span>{<span class="tok-number">0x00</span>} <span class="tok-number">13</span>;</span> <span class="line" id="L515"> <span class="tok-kw">const</span> ad = [<span class="tok-number">8</span>]<span class="tok-type">u8</span>{ <span class="tok-number">0x00</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x02</span>, <span class="tok-number">0x03</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x05</span>, <span class="tok-number">0x06</span>, <span class="tok-number">0x07</span> };</span> <span class="line" id="L516"> <span class="tok-kw">const</span> m = [<span class="tok-number">32</span>]<span class="tok-type">u8</span>{ <span class="tok-number">0x00</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x02</span>, <span class="tok-number">0x03</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x05</span>, <span class="tok-number">0x06</span>, <span class="tok-number">0x07</span>, <span class="tok-number">0x08</span>, <span class="tok-number">0x09</span>, <span class="tok-number">0x0a</span>, <span class="tok-number">0x0b</span>, <span class="tok-number">0x0c</span>, <span class="tok-number">0x0d</span>, <span class="tok-number">0x0e</span>, <span class="tok-number">0x0f</span>, <span class="tok-number">0x10</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0x12</span>, <span class="tok-number">0x13</span>, <span class="tok-number">0x14</span>, <span class="tok-number">0x15</span>, <span class="tok-number">0x16</span>, <span class="tok-number">0x17</span>, <span class="tok-number">0x18</span>, <span class="tok-number">0x19</span>, <span class="tok-number">0x1a</span>, <span class="tok-number">0x1b</span>, <span class="tok-number">0x1c</span>, <span class="tok-number">0x1d</span>, <span class="tok-number">0x1e</span>, <span class="tok-number">0x1f</span> };</span> <span class="line" id="L517"> <span class="tok-kw">var</span> c: [m.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L518"> <span class="tok-kw">var</span> m2: [m.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L519"> <span class="tok-kw">var</span> tag: [Aegis128L.tag_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L520"></span> <span class="line" id="L521"> Aegis128L.encrypt(&c, &tag, &m, &ad, nonce, key);</span> <span class="line" id="L522"> <span class="tok-kw">try</span> Aegis128L.decrypt(&m2, &c, tag, &ad, nonce, key);</span> <span class="line" id="L523"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, &m, &m2);</span> <span class="line" id="L524"></span> <span class="line" id="L525"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"79d94593d8c2119d7e8fd9b8fc77845c5c077a05b2528b6ac54b563aed8efe84"</span>, &c);</span> <span class="line" id="L526"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"cc6f3372f6aa1bb82388d695c3962d9a"</span>, &tag);</span> <span class="line" id="L527"></span> <span class="line" id="L528"> c[<span class="tok-number">0</span>] +%= <span class="tok-number">1</span>;</span> <span class="line" id="L529"> <span class="tok-kw">try</span> testing.expectError(<span class="tok-kw">error</span>.AuthenticationFailed, Aegis128L.decrypt(&m2, &c, tag, &ad, nonce, key));</span> <span class="line" id="L530"> c[<span class="tok-number">0</span>] -%= <span class="tok-number">1</span>;</span> <span class="line" id="L531"> tag[<span class="tok-number">0</span>] +%= <span class="tok-number">1</span>;</span> <span class="line" id="L532"> <span class="tok-kw">try</span> testing.expectError(<span class="tok-kw">error</span>.AuthenticationFailed, Aegis128L.decrypt(&m2, &c, tag, &ad, nonce, key));</span> <span class="line" id="L533">}</span> <span class="line" id="L534"></span> <span class="line" id="L535"><span class="tok-kw">test</span> <span class="tok-str">"Aegis128L test vector 2"</span> {</span> <span class="line" id="L536"> <span class="tok-kw">const</span> key: [Aegis128L.key_length]<span class="tok-type">u8</span> = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x00</span>} <span class="tok-number">16</span>;</span> <span class="line" id="L537"> <span class="tok-kw">const</span> nonce: [Aegis128L.nonce_length]<span class="tok-type">u8</span> = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x00</span>} <span class="tok-number">16</span>;</span> <span class="line" id="L538"> <span class="tok-kw">const</span> ad = [_]<span class="tok-type">u8</span>{};</span> <span class="line" id="L539"> <span class="tok-kw">const</span> m = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x00</span>} <span class="tok-number">16</span>;</span> <span class="line" id="L540"> <span class="tok-kw">var</span> c: [m.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L541"> <span class="tok-kw">var</span> m2: [m.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L542"> <span class="tok-kw">var</span> tag: [Aegis128L.tag_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L543"></span> <span class="line" id="L544"> Aegis128L.encrypt(&c, &tag, &m, &ad, nonce, key);</span> <span class="line" id="L545"> <span class="tok-kw">try</span> Aegis128L.decrypt(&m2, &c, tag, &ad, nonce, key);</span> <span class="line" id="L546"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, &m, &m2);</span> <span class="line" id="L547"></span> <span class="line" id="L548"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"41de9000a7b5e40e2d68bb64d99ebb19"</span>, &c);</span> <span class="line" id="L549"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"f4d997cc9b94227ada4fe4165422b1c8"</span>, &tag);</span> <span class="line" id="L550">}</span> <span class="line" id="L551"></span> <span class="line" id="L552"><span class="tok-kw">test</span> <span class="tok-str">"Aegis128L test vector 3"</span> {</span> <span class="line" id="L553"> <span class="tok-kw">const</span> key: [Aegis128L.key_length]<span class="tok-type">u8</span> = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x00</span>} <span class="tok-number">16</span>;</span> <span class="line" id="L554"> <span class="tok-kw">const</span> nonce: [Aegis128L.nonce_length]<span class="tok-type">u8</span> = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x00</span>} <span class="tok-number">16</span>;</span> <span class="line" id="L555"> <span class="tok-kw">const</span> ad = [_]<span class="tok-type">u8</span>{};</span> <span class="line" id="L556"> <span class="tok-kw">const</span> m = [_]<span class="tok-type">u8</span>{};</span> <span class="line" id="L557"> <span class="tok-kw">var</span> c: [m.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L558"> <span class="tok-kw">var</span> m2: [m.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L559"> <span class="tok-kw">var</span> tag: [Aegis128L.tag_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L560"></span> <span class="line" id="L561"> Aegis128L.encrypt(&c, &tag, &m, &ad, nonce, key);</span> <span class="line" id="L562"> <span class="tok-kw">try</span> Aegis128L.decrypt(&m2, &c, tag, &ad, nonce, key);</span> <span class="line" id="L563"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, &m, &m2);</span> <span class="line" id="L564"></span> <span class="line" id="L565"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"83cc600dc4e3e7e62d4055826174f149"</span>, &tag);</span> <span class="line" id="L566">}</span> <span class="line" id="L567"></span> <span class="line" id="L568"><span class="tok-kw">test</span> <span class="tok-str">"Aegis256 test vector 1"</span> {</span> <span class="line" id="L569"> <span class="tok-kw">const</span> key: [Aegis256.key_length]<span class="tok-type">u8</span> = [_]<span class="tok-type">u8</span>{ <span class="tok-number">0x10</span>, <span class="tok-number">0x01</span> } ++ [_]<span class="tok-type">u8</span>{<span class="tok-number">0x00</span>} <span class="tok-number">30</span>;</span> <span class="line" id="L570"> <span class="tok-kw">const</span> nonce: [Aegis256.nonce_length]<span class="tok-type">u8</span> = [_]<span class="tok-type">u8</span>{ <span class="tok-number">0x10</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x02</span> } ++ [_]<span class="tok-type">u8</span>{<span class="tok-number">0x00</span>} <span class="tok-number">29</span>;</span> <span class="line" id="L571"> <span class="tok-kw">const</span> ad = [<span class="tok-number">8</span>]<span class="tok-type">u8</span>{ <span class="tok-number">0x00</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x02</span>, <span class="tok-number">0x03</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x05</span>, <span class="tok-number">0x06</span>, <span class="tok-number">0x07</span> };</span> <span class="line" id="L572"> <span class="tok-kw">const</span> m = [<span class="tok-number">32</span>]<span class="tok-type">u8</span>{ <span class="tok-number">0x00</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x02</span>, <span class="tok-number">0x03</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x05</span>, <span class="tok-number">0x06</span>, <span class="tok-number">0x07</span>, <span class="tok-number">0x08</span>, <span class="tok-number">0x09</span>, <span class="tok-number">0x0a</span>, <span class="tok-number">0x0b</span>, <span class="tok-number">0x0c</span>, <span class="tok-number">0x0d</span>, <span class="tok-number">0x0e</span>, <span class="tok-number">0x0f</span>, <span class="tok-number">0x10</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0x12</span>, <span class="tok-number">0x13</span>, <span class="tok-number">0x14</span>, <span class="tok-number">0x15</span>, <span class="tok-number">0x16</span>, <span class="tok-number">0x17</span>, <span class="tok-number">0x18</span>, <span class="tok-number">0x19</span>, <span class="tok-number">0x1a</span>, <span class="tok-number">0x1b</span>, <span class="tok-number">0x1c</span>, <span class="tok-number">0x1d</span>, <span class="tok-number">0x1e</span>, <span class="tok-number">0x1f</span> };</span> <span class="line" id="L573"> <span class="tok-kw">var</span> c: [m.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L574"> <span class="tok-kw">var</span> m2: [m.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L575"> <span class="tok-kw">var</span> tag: [Aegis256.tag_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L576"></span> <span class="line" id="L577"> Aegis256.encrypt(&c, &tag, &m, &ad, nonce, key);</span> <span class="line" id="L578"> <span class="tok-kw">try</span> Aegis256.decrypt(&m2, &c, tag, &ad, nonce, key);</span> <span class="line" id="L579"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, &m, &m2);</span> <span class="line" id="L580"></span> <span class="line" id="L581"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"f373079ed84b2709faee373584585d60accd191db310ef5d8b11833df9dec711"</span>, &c);</span> <span class="line" id="L582"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"8d86f91ee606e9ff26a01b64ccbdd91d"</span>, &tag);</span> <span class="line" id="L583"></span> <span class="line" id="L584"> c[<span class="tok-number">0</span>] +%= <span class="tok-number">1</span>;</span> <span class="line" id="L585"> <span class="tok-kw">try</span> testing.expectError(<span class="tok-kw">error</span>.AuthenticationFailed, Aegis256.decrypt(&m2, &c, tag, &ad, nonce, key));</span> <span class="line" id="L586"> c[<span class="tok-number">0</span>] -%= <span class="tok-number">1</span>;</span> <span class="line" id="L587"> tag[<span class="tok-number">0</span>] +%= <span class="tok-number">1</span>;</span> <span class="line" id="L588"> <span class="tok-kw">try</span> testing.expectError(<span class="tok-kw">error</span>.AuthenticationFailed, Aegis256.decrypt(&m2, &c, tag, &ad, nonce, key));</span> <span class="line" id="L589">}</span> <span class="line" id="L590"></span> <span class="line" id="L591"><span class="tok-kw">test</span> <span class="tok-str">"Aegis256 test vector 2"</span> {</span> <span class="line" id="L592"> <span class="tok-kw">const</span> key: [Aegis256.key_length]<span class="tok-type">u8</span> = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x00</span>} <span class="tok-number">32</span>;</span> <span class="line" id="L593"> <span class="tok-kw">const</span> nonce: [Aegis256.nonce_length]<span class="tok-type">u8</span> = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x00</span>} <span class="tok-number">32</span>;</span> <span class="line" id="L594"> <span class="tok-kw">const</span> ad = [_]<span class="tok-type">u8</span>{};</span> <span class="line" id="L595"> <span class="tok-kw">const</span> m = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x00</span>} <span class="tok-number">16</span>;</span> <span class="line" id="L596"> <span class="tok-kw">var</span> c: [m.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L597"> <span class="tok-kw">var</span> m2: [m.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L598"> <span class="tok-kw">var</span> tag: [Aegis256.tag_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L599"></span> <span class="line" id="L600"> Aegis256.encrypt(&c, &tag, &m, &ad, nonce, key);</span> <span class="line" id="L601"> <span class="tok-kw">try</span> Aegis256.decrypt(&m2, &c, tag, &ad, nonce, key);</span> <span class="line" id="L602"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, &m, &m2);</span> <span class="line" id="L603"></span> <span class="line" id="L604"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"b98f03a947807713d75a4fff9fc277a6"</span>, &c);</span> <span class="line" id="L605"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"478f3b50dc478ef7d5cf2d0f7cc13180"</span>, &tag);</span> <span class="line" id="L606">}</span> <span class="line" id="L607"></span> <span class="line" id="L608"><span class="tok-kw">test</span> <span class="tok-str">"Aegis256 test vector 3"</span> {</span> <span class="line" id="L609"> <span class="tok-kw">const</span> key: [Aegis256.key_length]<span class="tok-type">u8</span> = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x00</span>} <span class="tok-number">32</span>;</span> <span class="line" id="L610"> <span class="tok-kw">const</span> nonce: [Aegis256.nonce_length]<span class="tok-type">u8</span> = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x00</span>} <span class="tok-number">32</span>;</span> <span class="line" id="L611"> <span class="tok-kw">const</span> ad = [_]<span class="tok-type">u8</span>{};</span> <span class="line" id="L612"> <span class="tok-kw">const</span> m = [_]<span class="tok-type">u8</span>{};</span> <span class="line" id="L613"> <span class="tok-kw">var</span> c: [m.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L614"> <span class="tok-kw">var</span> m2: [m.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L615"> <span class="tok-kw">var</span> tag: [Aegis256.tag_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L616"></span> <span class="line" id="L617"> Aegis256.encrypt(&c, &tag, &m, &ad, nonce, key);</span> <span class="line" id="L618"> <span class="tok-kw">try</span> Aegis256.decrypt(&m2, &c, tag, &ad, nonce, key);</span> <span class="line" id="L619"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, &m, &m2);</span> <span class="line" id="L620"></span> <span class="line" id="L621"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"f7a0878f68bd083e8065354071fc27c3"</span>, &tag);</span> <span class="line" id="L622">}</span> <span class="line" id="L623"></span> <span class="line" id="L624"><span class="tok-kw">test</span> <span class="tok-str">"Aegis MAC"</span> {</span> <span class="line" id="L625"> <span class="tok-kw">const</span> key = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x00</span>} Aegis128LMac.key_length;</span> <span class="line" id="L626"> <span class="tok-kw">var</span> msg: [<span class="tok-number">64</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L627"> <span class="tok-kw">for</span> (&msg, <span class="tok-number">0</span>..) \|m, i\| {</span> <span class="line" id="L628"> m. = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>(i));</span> <span class="line" id="L629"> }</span> <span class="line" id="L630"> <span class="tok-kw">const</span> st_init = Aegis128LMac.init(&key);</span> <span class="line" id="L631"> <span class="tok-kw">var</span> st = st_init;</span> <span class="line" id="L632"> <span class="tok-kw">var</span> tag: [Aegis128LMac.mac_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L633"></span> <span class="line" id="L634"> st.update(msg[<span class="tok-number">0</span>..<span class="tok-number">32</span>]);</span> <span class="line" id="L635"> st.update(msg[<span class="tok-number">32</span>..]);</span> <span class="line" id="L636"> st.final(&tag);</span> <span class="line" id="L637"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"f8840849602738d81037cbaa0f584ea95759e2ac60263ce77346bcdc79fe4319"</span>, &tag);</span> <span class="line" id="L638"></span> <span class="line" id="L639"> st = st_init;</span> <span class="line" id="L640"> st.update(msg[<span class="tok-number">0</span>..<span class="tok-number">31</span>]);</span> <span class="line" id="L641"> st.update(msg[<span class="tok-number">31</span>..]);</span> <span class="line" id="L642"> st.final(&tag);</span> <span class="line" id="L643"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"f8840849602738d81037cbaa0f584ea95759e2ac60263ce77346bcdc79fe4319"</span>, &tag);</span> <span class="line" id="L644"></span> <span class="line" id="L645"> st = st_init;</span> <span class="line" id="L646"> st.update(msg[<span class="tok-number">0</span>..<span class="tok-number">14</span>]);</span> <span class="line" id="L647"> st.update(msg[<span class="tok-number">14</span>..<span class="tok-number">30</span>]);</span> <span class="line" id="L648"> st.update(msg[<span class="tok-number">30</span>..]);</span> <span class="line" id="L649"> st.final(&tag);</span> <span class="line" id="L650"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"f8840849602738d81037cbaa0f584ea95759e2ac60263ce77346bcdc79fe4319"</span>, &tag);</span> <span class="line" id="L651"></span> <span class="line" id="L652"> <span class="tok-kw">var</span> empty: [<span class="tok-number">0</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L653"> <span class="tok-kw">const</span> nonce = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x00</span>} ** Aegis128L_256.nonce_length;</span> <span class="line" id="L654"> Aegis128L_256.encrypt(&empty, &tag, &empty, &msg, nonce, key);</span> <span class="line" id="L655"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"f8840849602738d81037cbaa0f584ea95759e2ac60263ce77346bcdc79fe4319"</span>, &tag);</span> <span class="line" id="L656"></span> <span class="line" id="L657"> <span class="tok-comment">// An update whose size is not a multiple of the block size</span> </span> <span class="line" id="L658"> st = st_init;</span> <span class="line" id="L659"> st.update(msg[<span class="tok-number">0</span>..<span class="tok-number">33</span>]);</span> <span class="line" id="L660"> st.final(&tag);</span> <span class="line" id="L661"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"c7cf649a844c1a6676cf6d91b1658e0aee54a4da330b0a8d3bc7ea4067551d1b"</span>, &tag);</span> <span class="line" id="L662">}</span> <span class="line" id="L663"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/crypto/scrypt.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/scrypt.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-comment">// https://tools.ietf.org/html/rfc7914</span> </span> <span class="line" id="L2"><span class="tok-comment">// https://github.com/golang/crypto/blob/master/scrypt/scrypt.go</span> </span> <span class="line" id="L3"><span class="tok-comment">// https://github.com/Tarsnap/scrypt</span> </span> <span class="line" id="L4"></span> <span class="line" id="L5"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L6"><span class="tok-kw">const</span> crypto = std.crypto;</span> <span class="line" id="L7"><span class="tok-kw">const</span> fmt = std.fmt;</span> <span class="line" id="L8"><span class="tok-kw">const</span> io = std.io;</span> <span class="line" id="L9"><span class="tok-kw">const</span> math = std.math;</span> <span class="line" id="L10"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L11"><span class="tok-kw">const</span> meta = std.meta;</span> <span class="line" id="L12"><span class="tok-kw">const</span> pwhash = crypto.pwhash;</span> <span class="line" id="L13"></span> <span class="line" id="L14"><span class="tok-kw">const</span> phc_format = <span class="tok-builtin">@import</span>(<span class="tok-str">"phc_encoding.zig"</span>);</span> <span class="line" id="L15"></span> <span class="line" id="L16"><span class="tok-kw">const</span> HmacSha256 = crypto.auth.hmac.sha2.HmacSha256;</span> <span class="line" id="L17"><span class="tok-kw">const</span> KdfError = pwhash.KdfError;</span> <span class="line" id="L18"><span class="tok-kw">const</span> HasherError = pwhash.HasherError;</span> <span class="line" id="L19"><span class="tok-kw">const</span> EncodingError = phc_format.Error;</span> <span class="line" id="L20"><span class="tok-kw">const</span> Error = pwhash.Error;</span> <span class="line" id="L21"></span> <span class="line" id="L22"><span class="tok-kw">const</span> max_size = math.maxInt(<span class="tok-type">usize</span>);</span> <span class="line" id="L23"><span class="tok-kw">const</span> max_int = max_size >> <span class="tok-number">1</span>;</span> <span class="line" id="L24"><span class="tok-kw">const</span> default_salt_len = <span class="tok-number">32</span>;</span> <span class="line" id="L25"><span class="tok-kw">const</span> default_hash_len = <span class="tok-number">32</span>;</span> <span class="line" id="L26"><span class="tok-kw">const</span> max_salt_len = <span class="tok-number">64</span>;</span> <span class="line" id="L27"><span class="tok-kw">const</span> max_hash_len = <span class="tok-number">64</span>;</span> <span class="line" id="L28"></span> <span class="line" id="L29"><span class="tok-kw">fn</span> <span class="tok-fn">blockCopy</span>(dst: []<span class="tok-kw">align</span>(<span class="tok-number">16</span>) <span class="tok-type">u32</span>, src: []<span class="tok-kw">align</span>(<span class="tok-number">16</span>) <span class="tok-kw">const</span> <span class="tok-type">u32</span>, n: <span class="tok-type">usize</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L30"> <span class="tok-builtin">@memcpy</span>(dst[<span class="tok-number">0</span> .. n * <span class="tok-number">16</span>], src[<span class="tok-number">0</span> .. n * <span class="tok-number">16</span>]);</span> <span class="line" id="L31">}</span> <span class="line" id="L32"></span> <span class="line" id="L33"><span class="tok-kw">fn</span> <span class="tok-fn">blockXor</span>(dst: []<span class="tok-kw">align</span>(<span class="tok-number">16</span>) <span class="tok-type">u32</span>, src: []<span class="tok-kw">align</span>(<span class="tok-number">16</span>) <span class="tok-kw">const</span> <span class="tok-type">u32</span>, n: <span class="tok-type">usize</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L34"> <span class="tok-kw">for</span> (src[<span class="tok-number">0</span> .. n * <span class="tok-number">16</span>], <span class="tok-number">0</span>..) \|v, i\| {</span> <span class="line" id="L35"> dst[i] ^= v;</span> <span class="line" id="L36"> }</span> <span class="line" id="L37">}</span> <span class="line" id="L38"></span> <span class="line" id="L39"><span class="tok-kw">const</span> QuarterRound = <span class="tok-kw">struct</span> { a: <span class="tok-type">usize</span>, b: <span class="tok-type">usize</span>, c: <span class="tok-type">usize</span>, d: <span class="tok-type">u6</span> };</span> <span class="line" id="L40"></span> <span class="line" id="L41"><span class="tok-kw">fn</span> <span class="tok-fn">Rp</span>(a: <span class="tok-type">usize</span>, b: <span class="tok-type">usize</span>, c: <span class="tok-type">usize</span>, d: <span class="tok-type">u6</span>) QuarterRound {</span> <span class="line" id="L42"> <span class="tok-kw">return</span> QuarterRound{ .a = a, .b = b, .c = c, .d = d };</span> <span class="line" id="L43">}</span> <span class="line" id="L44"></span> <span class="line" id="L45"><span class="tok-kw">fn</span> <span class="tok-fn">salsa8core</span>(b: <span class="tok-kw">align</span>(<span class="tok-number">16</span>) [<span class="tok-number">16</span>]<span class="tok-type">u32</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L46"> <span class="tok-kw">const</span> arx_steps = <span class="tok-kw">comptime</span> [_]QuarterRound{</span> <span class="line" id="L47"> Rp(<span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">12</span>, <span class="tok-number">7</span>), Rp(<span class="tok-number">8</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">9</span>), Rp(<span class="tok-number">12</span>, <span class="tok-number">8</span>, <span class="tok-number">4</span>, <span class="tok-number">13</span>), Rp(<span class="tok-number">0</span>, <span class="tok-number">12</span>, <span class="tok-number">8</span>, <span class="tok-number">18</span>),</span> <span class="line" id="L48"> Rp(<span class="tok-number">9</span>, <span class="tok-number">5</span>, <span class="tok-number">1</span>, <span class="tok-number">7</span>), Rp(<span class="tok-number">13</span>, <span class="tok-number">9</span>, <span class="tok-number">5</span>, <span class="tok-number">9</span>), Rp(<span class="tok-number">1</span>, <span class="tok-number">13</span>, <span class="tok-number">9</span>, <span class="tok-number">13</span>), Rp(<span class="tok-number">5</span>, <span class="tok-number">1</span>, <span class="tok-number">13</span>, <span class="tok-number">18</span>),</span> <span class="line" id="L49"> Rp(<span class="tok-number">14</span>, <span class="tok-number">10</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>), Rp(<span class="tok-number">2</span>, <span class="tok-number">14</span>, <span class="tok-number">10</span>, <span class="tok-number">9</span>), Rp(<span class="tok-number">6</span>, <span class="tok-number">2</span>, <span class="tok-number">14</span>, <span class="tok-number">13</span>), Rp(<span class="tok-number">10</span>, <span class="tok-number">6</span>, <span class="tok-number">2</span>, <span class="tok-number">18</span>),</span> <span class="line" id="L50"> Rp(<span class="tok-number">3</span>, <span class="tok-number">15</span>, <span class="tok-number">11</span>, <span class="tok-number">7</span>), Rp(<span class="tok-number">7</span>, <span class="tok-number">3</span>, <span class="tok-number">15</span>, <span class="tok-number">9</span>), Rp(<span class="tok-number">11</span>, <span class="tok-number">7</span>, <span class="tok-number">3</span>, <span class="tok-number">13</span>), Rp(<span class="tok-number">15</span>, <span class="tok-number">11</span>, <span class="tok-number">7</span>, <span class="tok-number">18</span>),</span> <span class="line" id="L51"> Rp(<span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">3</span>, <span class="tok-number">7</span>), Rp(<span class="tok-number">2</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">9</span>), Rp(<span class="tok-number">3</span>, <span class="tok-number">2</span>, <span class="tok-number">1</span>, <span class="tok-number">13</span>), Rp(<span class="tok-number">0</span>, <span class="tok-number">3</span>, <span class="tok-number">2</span>, <span class="tok-number">18</span>),</span> <span class="line" id="L52"> Rp(<span class="tok-number">6</span>, <span class="tok-number">5</span>, <span class="tok-number">4</span>, <span class="tok-number">7</span>), Rp(<span class="tok-number">7</span>, <span class="tok-number">6</span>, <span class="tok-number">5</span>, <span class="tok-number">9</span>), Rp(<span class="tok-number">4</span>, <span class="tok-number">7</span>, <span class="tok-number">6</span>, <span class="tok-number">13</span>), Rp(<span class="tok-number">5</span>, <span class="tok-number">4</span>, <span class="tok-number">7</span>, <span class="tok-number">18</span>),</span> <span class="line" id="L53"> Rp(<span class="tok-number">11</span>, <span class="tok-number">10</span>, <span class="tok-number">9</span>, <span class="tok-number">7</span>), Rp(<span class="tok-number">8</span>, <span class="tok-number">11</span>, <span class="tok-number">10</span>, <span class="tok-number">9</span>), Rp(<span class="tok-number">9</span>, <span class="tok-number">8</span>, <span class="tok-number">11</span>, <span class="tok-number">13</span>), Rp(<span class="tok-number">10</span>, <span class="tok-number">9</span>, <span class="tok-number">8</span>, <span class="tok-number">18</span>),</span> <span class="line" id="L54"> Rp(<span class="tok-number">12</span>, <span class="tok-number">15</span>, <span class="tok-number">14</span>, <span class="tok-number">7</span>), Rp(<span class="tok-number">13</span>, <span class="tok-number">12</span>, <span class="tok-number">15</span>, <span class="tok-number">9</span>), Rp(<span class="tok-number">14</span>, <span class="tok-number">13</span>, <span class="tok-number">12</span>, <span class="tok-number">13</span>), Rp(<span class="tok-number">15</span>, <span class="tok-number">14</span>, <span class="tok-number">13</span>, <span class="tok-number">18</span>),</span> <span class="line" id="L55"> };</span> <span class="line" id="L56"> <span class="tok-kw">var</span> x = b.;</span> <span class="line" id="L57"> <span class="tok-kw">var</span> j: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L58"> <span class="tok-kw">while</span> (j < <span class="tok-number">8</span>) : (j += <span class="tok-number">2</span>) {</span> <span class="line" id="L59"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (arx_steps) \|r\| {</span> <span class="line" id="L60"> x[r.a] ^= math.rotl(<span class="tok-type">u32</span>, x[r.b] +% x[r.c], r.d);</span> <span class="line" id="L61"> }</span> <span class="line" id="L62"> }</span> <span class="line" id="L63"> j = <span class="tok-number">0</span>;</span> <span class="line" id="L64"> <span class="tok-kw">while</span> (j < <span class="tok-number">16</span>) : (j += <span class="tok-number">1</span>) {</span> <span class="line" id="L65"> b[j] +%= x[j];</span> <span class="line" id="L66"> }</span> <span class="line" id="L67">}</span> <span class="line" id="L68"></span> <span class="line" id="L69"><span class="tok-kw">fn</span> <span class="tok-fn">salsaXor</span>(tmp: <span class="tok-kw">align</span>(<span class="tok-number">16</span>) [<span class="tok-number">16</span>]<span class="tok-type">u32</span>, in: []<span class="tok-kw">align</span>(<span class="tok-number">16</span>) <span class="tok-kw">const</span> <span class="tok-type">u32</span>, out: []<span class="tok-kw">align</span>(<span class="tok-number">16</span>) <span class="tok-type">u32</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L70"> blockXor(tmp, in, <span class="tok-number">1</span>);</span> <span class="line" id="L71"> salsa8core(tmp);</span> <span class="line" id="L72"> blockCopy(out, tmp, <span class="tok-number">1</span>);</span> <span class="line" id="L73">}</span> <span class="line" id="L74"></span> <span class="line" id="L75"><span class="tok-kw">fn</span> <span class="tok-fn">blockMix</span>(tmp: <span class="tok-kw">align</span>(<span class="tok-number">16</span>) [<span class="tok-number">16</span>]<span class="tok-type">u32</span>, in: []<span class="tok-kw">align</span>(<span class="tok-number">16</span>) <span class="tok-kw">const</span> <span class="tok-type">u32</span>, out: []<span class="tok-kw">align</span>(<span class="tok-number">16</span>) <span class="tok-type">u32</span>, r: <span class="tok-type">u30</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L76"> blockCopy(tmp, <span class="tok-builtin">@alignCast</span>(in[(<span class="tok-number">2</span> * r - <span class="tok-number">1</span>) * <span class="tok-number">16</span> ..]), <span class="tok-number">1</span>);</span> <span class="line" id="L77"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L78"> <span class="tok-kw">while</span> (i < <span class="tok-number">2</span> * r) : (i += <span class="tok-number">2</span>) {</span> <span class="line" id="L79"> salsaXor(tmp, <span class="tok-builtin">@alignCast</span>(in[i * <span class="tok-number">16</span> ..]), <span class="tok-builtin">@alignCast</span>(out[i * <span class="tok-number">8</span> ..]));</span> <span class="line" id="L80"> salsaXor(tmp, <span class="tok-builtin">@alignCast</span>(in[i * <span class="tok-number">16</span> + <span class="tok-number">16</span> ..]), <span class="tok-builtin">@alignCast</span>(out[i * <span class="tok-number">8</span> + r * <span class="tok-number">16</span> ..]));</span> <span class="line" id="L81"> }</span> <span class="line" id="L82">}</span> <span class="line" id="L83"></span> <span class="line" id="L84"><span class="tok-kw">fn</span> <span class="tok-fn">integerify</span>(b: []<span class="tok-kw">align</span>(<span class="tok-number">16</span>) <span class="tok-kw">const</span> <span class="tok-type">u32</span>, r: <span class="tok-type">u30</span>) <span class="tok-type">u64</span> {</span> <span class="line" id="L85"> <span class="tok-kw">const</span> j = (<span class="tok-number">2</span> * r - <span class="tok-number">1</span>) * <span class="tok-number">16</span>;</span> <span class="line" id="L86"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, b[j]) \| <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, b[j + <span class="tok-number">1</span>]) << <span class="tok-number">32</span>;</span> <span class="line" id="L87">}</span> <span class="line" id="L88"></span> <span class="line" id="L89"><span class="tok-kw">fn</span> <span class="tok-fn">smix</span>(b: []<span class="tok-kw">align</span>(<span class="tok-number">16</span>) <span class="tok-type">u8</span>, r: <span class="tok-type">u30</span>, n: <span class="tok-type">usize</span>, v: []<span class="tok-kw">align</span>(<span class="tok-number">16</span>) <span class="tok-type">u32</span>, xy: []<span class="tok-kw">align</span>(<span class="tok-number">16</span>) <span class="tok-type">u32</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L90"> <span class="tok-kw">var</span> x: []<span class="tok-kw">align</span>(<span class="tok-number">16</span>) <span class="tok-type">u32</span> = <span class="tok-builtin">@alignCast</span>(xy[<span class="tok-number">0</span> .. <span class="tok-number">32</span> * r]);</span> <span class="line" id="L91"> <span class="tok-kw">var</span> y: []<span class="tok-kw">align</span>(<span class="tok-number">16</span>) <span class="tok-type">u32</span> = <span class="tok-builtin">@alignCast</span>(xy[<span class="tok-number">32</span> * r ..]);</span> <span class="line" id="L92"></span> <span class="line" id="L93"> <span class="tok-kw">for</span> (x, <span class="tok-number">0</span>..) \|v1, j\| {</span> <span class="line" id="L94"> v1. = mem.readIntSliceLittle(<span class="tok-type">u32</span>, b[<span class="tok-number">4</span> * j ..]);</span> <span class="line" id="L95"> }</span> <span class="line" id="L96"></span> <span class="line" id="L97"> <span class="tok-kw">var</span> tmp: [<span class="tok-number">16</span>]<span class="tok-type">u32</span> <span class="tok-kw">align</span>(<span class="tok-number">16</span>) = <span class="tok-null">undefined</span>;</span> <span class="line" id="L98"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L99"> <span class="tok-kw">while</span> (i < n) : (i += <span class="tok-number">2</span>) {</span> <span class="line" id="L100"> blockCopy(<span class="tok-builtin">@alignCast</span>(v[i * (<span class="tok-number">32</span> * r) ..]), x, <span class="tok-number">2</span> * r);</span> <span class="line" id="L101"> blockMix(&tmp, x, y, r);</span> <span class="line" id="L102"></span> <span class="line" id="L103"> blockCopy(<span class="tok-builtin">@alignCast</span>(v[(i + <span class="tok-number">1</span>) * (<span class="tok-number">32</span> * r) ..]), y, <span class="tok-number">2</span> * r);</span> <span class="line" id="L104"> blockMix(&tmp, y, x, r);</span> <span class="line" id="L105"> }</span> <span class="line" id="L106"></span> <span class="line" id="L107"> i = <span class="tok-number">0</span>;</span> <span class="line" id="L108"> <span class="tok-kw">while</span> (i < n) : (i += <span class="tok-number">2</span>) {</span> <span class="line" id="L109"> <span class="tok-kw">var</span> j = <span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(integerify(x, r) & (n - <span class="tok-number">1</span>)));</span> <span class="line" id="L110"> blockXor(x, <span class="tok-builtin">@alignCast</span>(v[j * (<span class="tok-number">32</span> * r) ..]), <span class="tok-number">2</span> * r);</span> <span class="line" id="L111"> blockMix(&tmp, x, y, r);</span> <span class="line" id="L112"></span> <span class="line" id="L113"> j = <span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(integerify(y, r) & (n - <span class="tok-number">1</span>)));</span> <span class="line" id="L114"> blockXor(y, <span class="tok-builtin">@alignCast</span>(v[j * (<span class="tok-number">32</span> * r) ..]), <span class="tok-number">2</span> * r);</span> <span class="line" id="L115"> blockMix(&tmp, y, x, r);</span> <span class="line" id="L116"> }</span> <span class="line" id="L117"></span> <span class="line" id="L118"> <span class="tok-kw">for</span> (x, <span class="tok-number">0</span>..) \|v1, j\| {</span> <span class="line" id="L119"> mem.writeIntLittle(<span class="tok-type">u32</span>, b[<span class="tok-number">4</span> * j ..][<span class="tok-number">0</span>..<span class="tok-number">4</span>], v1);</span> <span class="line" id="L120"> }</span> <span class="line" id="L121">}</span> <span class="line" id="L122"></span> <span class="line" id="L123"><span class="tok-comment">/// Scrypt parameters</span></span> <span class="line" id="L124"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Params = <span class="tok-kw">struct</span> {</span> <span class="line" id="L125"> <span class="tok-kw">const</span> Self = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L126"></span> <span class="line" id="L127"> <span class="tok-comment">/// The CPU/Memory cost parameter [ln] is log2(N).</span></span> <span class="line" id="L128"> ln: <span class="tok-type">u6</span>,</span> <span class="line" id="L129"></span> <span class="line" id="L130"> <span class="tok-comment">/// The [r]esource usage parameter specifies the block size.</span></span> <span class="line" id="L131"> r: <span class="tok-type">u30</span>,</span> <span class="line" id="L132"></span> <span class="line" id="L133"> <span class="tok-comment">/// The [p]arallelization parameter.</span></span> <span class="line" id="L134"> <span class="tok-comment">/// A large value of [p] can be used to increase the computational cost of scrypt without</span></span> <span class="line" id="L135"> <span class="tok-comment">/// increasing the memory usage.</span></span> <span class="line" id="L136"> p: <span class="tok-type">u30</span>,</span> <span class="line" id="L137"></span> <span class="line" id="L138"> <span class="tok-comment">/// Baseline parameters for interactive logins</span></span> <span class="line" id="L139"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> interactive = Self.fromLimits(<span class="tok-number">524288</span>, <span class="tok-number">16777216</span>);</span> <span class="line" id="L140"></span> <span class="line" id="L141"> <span class="tok-comment">/// Baseline parameters for offline usage</span></span> <span class="line" id="L142"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> sensitive = Self.fromLimits(<span class="tok-number">33554432</span>, <span class="tok-number">1073741824</span>);</span> <span class="line" id="L143"></span> <span class="line" id="L144"> <span class="tok-comment">/// Create parameters from ops and mem limits, where mem_limit given in bytes</span></span> <span class="line" id="L145"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromLimits</span>(ops_limit: <span class="tok-type">u64</span>, mem_limit: <span class="tok-type">usize</span>) Self {</span> <span class="line" id="L146"> <span class="tok-kw">const</span> ops = <span class="tok-builtin">@max</span>(<span class="tok-number">32768</span>, ops_limit);</span> <span class="line" id="L147"> <span class="tok-kw">const</span> r: <span class="tok-type">u30</span> = <span class="tok-number">8</span>;</span> <span class="line" id="L148"> <span class="tok-kw">if</span> (ops < mem_limit / <span class="tok-number">32</span>) {</span> <span class="line" id="L149"> <span class="tok-kw">const</span> max_n = ops / (r * <span class="tok-number">4</span>);</span> <span class="line" id="L150"> <span class="tok-kw">return</span> Self{ .r = r, .p = <span class="tok-number">1</span>, .ln = <span class="tok-builtin">@as</span>(<span class="tok-type">u6</span>, <span class="tok-builtin">@intCast</span>(math.log2(max_n))) };</span> <span class="line" id="L151"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L152"> <span class="tok-kw">const</span> max_n = mem_limit / (<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(r)) * <span class="tok-number">128</span>);</span> <span class="line" id="L153"> <span class="tok-kw">const</span> ln = <span class="tok-builtin">@as</span>(<span class="tok-type">u6</span>, <span class="tok-builtin">@intCast</span>(math.log2(max_n)));</span> <span class="line" id="L154"> <span class="tok-kw">const</span> max_rp = <span class="tok-builtin">@min</span>(<span class="tok-number">0x3fffffff</span>, (ops / <span class="tok-number">4</span>) / (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">1</span>) << ln));</span> <span class="line" id="L155"> <span class="tok-kw">return</span> Self{ .r = r, .p = <span class="tok-builtin">@as</span>(<span class="tok-type">u30</span>, <span class="tok-builtin">@intCast</span>(max_rp / <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, r))), .ln = ln };</span> <span class="line" id="L156"> }</span> <span class="line" id="L157"> }</span> <span class="line" id="L158">};</span> <span class="line" id="L159"></span> <span class="line" id="L160"><span class="tok-comment">/// Apply scrypt to generate a key from a password.</span></span> <span class="line" id="L161"><span class="tok-comment">///</span></span> <span class="line" id="L162"><span class="tok-comment">/// scrypt is defined in RFC 7914.</span></span> <span class="line" id="L163"><span class="tok-comment">///</span></span> <span class="line" id="L164"><span class="tok-comment">/// allocator: mem.Allocator.</span></span> <span class="line" id="L165"><span class="tok-comment">///</span></span> <span class="line" id="L166"><span class="tok-comment">/// derived_key: Slice of appropriate size for generated key. Generally 16 or 32 bytes in length.</span></span> <span class="line" id="L167"><span class="tok-comment">/// May be uninitialized. All bytes will be overwritten.</span></span> <span class="line" id="L168"><span class="tok-comment">/// Maximum size is `derived_key.len / 32 == 0xffff_ffff`.</span></span> <span class="line" id="L169"><span class="tok-comment">///</span></span> <span class="line" id="L170"><span class="tok-comment">/// password: Arbitrary sequence of bytes of any length.</span></span> <span class="line" id="L171"><span class="tok-comment">///</span></span> <span class="line" id="L172"><span class="tok-comment">/// salt: Arbitrary sequence of bytes of any length.</span></span> <span class="line" id="L173"><span class="tok-comment">///</span></span> <span class="line" id="L174"><span class="tok-comment">/// params: Params.</span></span> <span class="line" id="L175"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">kdf</span>(</span> <span class="line" id="L176"> allocator: mem.Allocator,</span> <span class="line" id="L177"> derived_key: []<span class="tok-type">u8</span>,</span> <span class="line" id="L178"> password: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L179"> salt: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L180"> params: Params,</span> <span class="line" id="L181">) KdfError!<span class="tok-type">void</span> {</span> <span class="line" id="L182"> <span class="tok-kw">if</span> (derived_key.len == <span class="tok-number">0</span>) <span class="tok-kw">return</span> KdfError.WeakParameters;</span> <span class="line" id="L183"> <span class="tok-kw">if</span> (derived_key.len / <span class="tok-number">32</span> > <span class="tok-number">0xffff_ffff</span>) <span class="tok-kw">return</span> KdfError.OutputTooLong;</span> <span class="line" id="L184"> <span class="tok-kw">if</span> (params.ln == <span class="tok-number">0</span> <span class="tok-kw">or</span> params.r == <span class="tok-number">0</span> <span class="tok-kw">or</span> params.p == <span class="tok-number">0</span>) <span class="tok-kw">return</span> KdfError.WeakParameters;</span> <span class="line" id="L185"></span> <span class="line" id="L186"> <span class="tok-kw">const</span> n64 = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">1</span>) << params.ln;</span> <span class="line" id="L187"> <span class="tok-kw">if</span> (n64 > max_size) <span class="tok-kw">return</span> KdfError.WeakParameters;</span> <span class="line" id="L188"> <span class="tok-kw">const</span> n = <span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(n64));</span> <span class="line" id="L189"> <span class="tok-kw">if</span> (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, params.r) * <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, params.p) >= <span class="tok-number">1</span> << <span class="tok-number">30</span> <span class="tok-kw">or</span></span> <span class="line" id="L190"> params.r > max_int / <span class="tok-number">128</span> / <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, params.p) <span class="tok-kw">or</span></span> <span class="line" id="L191"> params.r > max_int / <span class="tok-number">256</span> <span class="tok-kw">or</span></span> <span class="line" id="L192"> n > max_int / <span class="tok-number">128</span> / <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, params.r)) <span class="tok-kw">return</span> KdfError.WeakParameters;</span> <span class="line" id="L193"></span> <span class="line" id="L194"> <span class="tok-kw">var</span> xy = <span class="tok-kw">try</span> allocator.alignedAlloc(<span class="tok-type">u32</span>, <span class="tok-number">16</span>, <span class="tok-number">64</span> * params.r);</span> <span class="line" id="L195"> <span class="tok-kw">defer</span> allocator.free(xy);</span> <span class="line" id="L196"> <span class="tok-kw">var</span> v = <span class="tok-kw">try</span> allocator.alignedAlloc(<span class="tok-type">u32</span>, <span class="tok-number">16</span>, <span class="tok-number">32</span> * n * params.r);</span> <span class="line" id="L197"> <span class="tok-kw">defer</span> allocator.free(v);</span> <span class="line" id="L198"> <span class="tok-kw">var</span> dk = <span class="tok-kw">try</span> allocator.alignedAlloc(<span class="tok-type">u8</span>, <span class="tok-number">16</span>, params.p * <span class="tok-number">128</span> * params.r);</span> <span class="line" id="L199"> <span class="tok-kw">defer</span> allocator.free(dk);</span> <span class="line" id="L200"></span> <span class="line" id="L201"> <span class="tok-kw">try</span> pwhash.pbkdf2(dk, password, salt, <span class="tok-number">1</span>, HmacSha256);</span> <span class="line" id="L202"> <span class="tok-kw">var</span> i: <span class="tok-type">u32</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L203"> <span class="tok-kw">while</span> (i < params.p) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L204"> smix(<span class="tok-builtin">@alignCast</span>(dk[i * <span class="tok-number">128</span> * params.r ..]), params.r, n, v, xy);</span> <span class="line" id="L205"> }</span> <span class="line" id="L206"> <span class="tok-kw">try</span> pwhash.pbkdf2(derived_key, password, dk, <span class="tok-number">1</span>, HmacSha256);</span> <span class="line" id="L207">}</span> <span class="line" id="L208"></span> <span class="line" id="L209"><span class="tok-kw">const</span> crypt_format = <span class="tok-kw">struct</span> {</span> <span class="line" id="L210"> <span class="tok-comment">/// String prefix for scrypt</span></span> <span class="line" id="L211"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> prefix = <span class="tok-str">"$7$"</span>;</span> <span class="line" id="L212"></span> <span class="line" id="L213"> <span class="tok-comment">/// Standard type for a set of scrypt parameters, with the salt and hash.</span></span> <span class="line" id="L214"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">HashResult</span>(<span class="tok-kw">comptime</span> crypt_max_hash_len: <span class="tok-type">usize</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L215"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L216"> ln: <span class="tok-type">u6</span>,</span> <span class="line" id="L217"> r: <span class="tok-type">u30</span>,</span> <span class="line" id="L218"> p: <span class="tok-type">u30</span>,</span> <span class="line" id="L219"> salt: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L220"> hash: BinValue(crypt_max_hash_len),</span> <span class="line" id="L221"> };</span> <span class="line" id="L222"> }</span> <span class="line" id="L223"></span> <span class="line" id="L224"> <span class="tok-kw">const</span> Codec = CustomB64Codec(<span class="tok-str">"./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"</span>.);</span> <span class="line" id="L225"></span> <span class="line" id="L226"> <span class="tok-comment">/// A wrapped binary value whose maximum size is `max_len`.</span></span> <span class="line" id="L227"> <span class="tok-comment">///</span></span> <span class="line" id="L228"> <span class="tok-comment">/// This type must be used whenever a binary value is encoded in a PHC-formatted string.</span></span> <span class="line" id="L229"> <span class="tok-comment">/// This includes `salt`, `hash`, and any other binary parameters such as keys.</span></span> <span class="line" id="L230"> <span class="tok-comment">///</span></span> <span class="line" id="L231"> <span class="tok-comment">/// Once initialized, the actual value can be read with the `constSlice()` function.</span></span> <span class="line" id="L232"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">BinValue</span>(<span class="tok-kw">comptime</span> max_len: <span class="tok-type">usize</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L233"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L234"> <span class="tok-kw">const</span> Self = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L235"> <span class="tok-kw">const</span> capacity = max_len;</span> <span class="line" id="L236"> <span class="tok-kw">const</span> max_encoded_length = Codec.encodedLen(max_len);</span> <span class="line" id="L237"></span> <span class="line" id="L238"> buf: [max_len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>,</span> <span class="line" id="L239"> len: <span class="tok-type">usize</span> = <span class="tok-number">0</span>,</span> <span class="line" id="L240"></span> <span class="line" id="L241"> <span class="tok-comment">/// Wrap an existing byte slice</span></span> <span class="line" id="L242"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromSlice</span>(slice: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) EncodingError!Self {</span> <span class="line" id="L243"> <span class="tok-kw">if</span> (slice.len > capacity) <span class="tok-kw">return</span> EncodingError.NoSpaceLeft;</span> <span class="line" id="L244"> <span class="tok-kw">var</span> bin_value: Self = <span class="tok-null">undefined</span>;</span> <span class="line" id="L245"> <span class="tok-builtin">@memcpy</span>(bin_value.buf[<span class="tok-number">0</span>..slice.len], slice);</span> <span class="line" id="L246"> bin_value.len = slice.len;</span> <span class="line" id="L247"> <span class="tok-kw">return</span> bin_value;</span> <span class="line" id="L248"> }</span> <span class="line" id="L249"></span> <span class="line" id="L250"> <span class="tok-comment">/// Return the slice containing the actual value.</span></span> <span class="line" id="L251"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">constSlice</span>(self: <span class="tok-kw">const</span> Self) []<span class="tok-kw">const</span> <span class="tok-type">u8</span> {</span> <span class="line" id="L252"> <span class="tok-kw">return</span> self.buf[<span class="tok-number">0</span>..self.len];</span> <span class="line" id="L253"> }</span> <span class="line" id="L254"></span> <span class="line" id="L255"> <span class="tok-kw">fn</span> <span class="tok-fn">fromB64</span>(self: Self, str: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L256"> <span class="tok-kw">const</span> len = Codec.decodedLen(str.len);</span> <span class="line" id="L257"> <span class="tok-kw">if</span> (len > self.buf.len) <span class="tok-kw">return</span> EncodingError.NoSpaceLeft;</span> <span class="line" id="L258"> <span class="tok-kw">try</span> Codec.decode(self.buf[<span class="tok-number">0</span>..len], str);</span> <span class="line" id="L259"> self.len = len;</span> <span class="line" id="L260"> }</span> <span class="line" id="L261"></span> <span class="line" id="L262"> <span class="tok-kw">fn</span> <span class="tok-fn">toB64</span>(self: <span class="tok-kw">const</span> Self, buf: []<span class="tok-type">u8</span>) ![]<span class="tok-kw">const</span> <span class="tok-type">u8</span> {</span> <span class="line" id="L263"> <span class="tok-kw">const</span> value = self.constSlice();</span> <span class="line" id="L264"> <span class="tok-kw">const</span> len = Codec.encodedLen(value.len);</span> <span class="line" id="L265"> <span class="tok-kw">if</span> (len > buf.len) <span class="tok-kw">return</span> EncodingError.NoSpaceLeft;</span> <span class="line" id="L266"> <span class="tok-kw">var</span> encoded = buf[<span class="tok-number">0</span>..len];</span> <span class="line" id="L267"> Codec.encode(encoded, value);</span> <span class="line" id="L268"> <span class="tok-kw">return</span> encoded;</span> <span class="line" id="L269"> }</span> <span class="line" id="L270"> };</span> <span class="line" id="L271"> }</span> <span class="line" id="L272"></span> <span class="line" id="L273"> <span class="tok-comment">/// Expand binary data into a salt for the modular crypt format.</span></span> <span class="line" id="L274"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">saltFromBin</span>(<span class="tok-kw">comptime</span> len: <span class="tok-type">usize</span>, salt: [len]<span class="tok-type">u8</span>) [Codec.encodedLen(len)]<span class="tok-type">u8</span> {</span> <span class="line" id="L275"> <span class="tok-kw">var</span> buf: [Codec.encodedLen(len)]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L276"> Codec.encode(&buf, &salt);</span> <span class="line" id="L277"> <span class="tok-kw">return</span> buf;</span> <span class="line" id="L278"> }</span> <span class="line" id="L279"></span> <span class="line" id="L280"> <span class="tok-comment">/// Deserialize a string into a structure `T` (matching `HashResult`).</span></span> <span class="line" id="L281"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">deserialize</span>(<span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>, str: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) EncodingError!T {</span> <span class="line" id="L282"> <span class="tok-kw">var</span> out: T = <span class="tok-null">undefined</span>;</span> <span class="line" id="L283"></span> <span class="line" id="L284"> <span class="tok-kw">if</span> (str.len < <span class="tok-number">16</span>) <span class="tok-kw">return</span> EncodingError.InvalidEncoding;</span> <span class="line" id="L285"> <span class="tok-kw">if</span> (!mem.eql(<span class="tok-type">u8</span>, prefix, str[<span class="tok-number">0</span>..<span class="tok-number">3</span>])) <span class="tok-kw">return</span> EncodingError.InvalidEncoding;</span> <span class="line" id="L286"> out.ln = <span class="tok-kw">try</span> Codec.intDecode(<span class="tok-type">u6</span>, str[<span class="tok-number">3</span>..<span class="tok-number">4</span>]);</span> <span class="line" id="L287"> out.r = <span class="tok-kw">try</span> Codec.intDecode(<span class="tok-type">u30</span>, str[<span class="tok-number">4</span>..<span class="tok-number">9</span>]);</span> <span class="line" id="L288"> out.p = <span class="tok-kw">try</span> Codec.intDecode(<span class="tok-type">u30</span>, str[<span class="tok-number">9</span>..<span class="tok-number">14</span>]);</span> <span class="line" id="L289"></span> <span class="line" id="L290"> <span class="tok-kw">var</span> it = mem.splitScalar(<span class="tok-type">u8</span>, str[<span class="tok-number">14</span>..], <span class="tok-str">'$'</span>);</span> <span class="line" id="L291"></span> <span class="line" id="L292"> <span class="tok-kw">const</span> salt = it.first();</span> <span class="line" id="L293"> <span class="tok-kw">if</span> (<span class="tok-builtin">@hasField</span>(T, <span class="tok-str">"salt"</span>)) out.salt = salt;</span> <span class="line" id="L294"></span> <span class="line" id="L295"> <span class="tok-kw">const</span> hash_str = it.next() <span class="tok-kw">orelse</span> <span class="tok-kw">return</span> EncodingError.InvalidEncoding;</span> <span class="line" id="L296"> <span class="tok-kw">if</span> (<span class="tok-builtin">@hasField</span>(T, <span class="tok-str">"hash"</span>)) <span class="tok-kw">try</span> out.hash.fromB64(hash_str);</span> <span class="line" id="L297"></span> <span class="line" id="L298"> <span class="tok-kw">return</span> out;</span> <span class="line" id="L299"> }</span> <span class="line" id="L300"></span> <span class="line" id="L301"> <span class="tok-comment">/// Serialize parameters into a string in modular crypt format.</span></span> <span class="line" id="L302"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">serialize</span>(params: <span class="tok-kw">anytype</span>, str: []<span class="tok-type">u8</span>) EncodingError![]<span class="tok-kw">const</span> <span class="tok-type">u8</span> {</span> <span class="line" id="L303"> <span class="tok-kw">var</span> buf = io.fixedBufferStream(str);</span> <span class="line" id="L304"> <span class="tok-kw">try</span> serializeTo(params, buf.writer());</span> <span class="line" id="L305"> <span class="tok-kw">return</span> buf.getWritten();</span> <span class="line" id="L306"> }</span> <span class="line" id="L307"></span> <span class="line" id="L308"> <span class="tok-comment">/// Compute the number of bytes required to serialize `params`</span></span> <span class="line" id="L309"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">calcSize</span>(params: <span class="tok-kw">anytype</span>) <span class="tok-type">usize</span> {</span> <span class="line" id="L310"> <span class="tok-kw">var</span> buf = io.countingWriter(io.null_writer);</span> <span class="line" id="L311"> serializeTo(params, buf.writer()) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L312"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(buf.bytes_written));</span> <span class="line" id="L313"> }</span> <span class="line" id="L314"></span> <span class="line" id="L315"> <span class="tok-kw">fn</span> <span class="tok-fn">serializeTo</span>(params: <span class="tok-kw">anytype</span>, out: <span class="tok-kw">anytype</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L316"> <span class="tok-kw">var</span> header: [<span class="tok-number">14</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L317"> header[<span class="tok-number">0</span>..<span class="tok-number">3</span>].* = prefix.;</span> <span class="line" id="L318"> Codec.intEncode(header[<span class="tok-number">3</span>..<span class="tok-number">4</span>], params.ln);</span> <span class="line" id="L319"> Codec.intEncode(header[<span class="tok-number">4</span>..<span class="tok-number">9</span>], params.r);</span> <span class="line" id="L320"> Codec.intEncode(header[<span class="tok-number">9</span>..<span class="tok-number">14</span>], params.p);</span> <span class="line" id="L321"> <span class="tok-kw">try</span> out.writeAll(&header);</span> <span class="line" id="L322"> <span class="tok-kw">try</span> out.writeAll(params.salt);</span> <span class="line" id="L323"> <span class="tok-kw">try</span> out.writeAll(<span class="tok-str">"$"</span>);</span> <span class="line" id="L324"> <span class="tok-kw">var</span> buf: [<span class="tok-builtin">@TypeOf</span>(params.hash).max_encoded_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L325"> <span class="tok-kw">const</span> hash_str = <span class="tok-kw">try</span> params.hash.toB64(&buf);</span> <span class="line" id="L326"> <span class="tok-kw">try</span> out.writeAll(hash_str);</span> <span class="line" id="L327"> }</span> <span class="line" id="L328"></span> <span class="line" id="L329"> <span class="tok-comment">/// Custom codec that maps 6 bits into 8 like regular Base64, but uses its own alphabet,</span></span> <span class="line" id="L330"> <span class="tok-comment">/// encodes bits in little-endian, and can also encode integers.</span></span> <span class="line" id="L331"> <span class="tok-kw">fn</span> <span class="tok-fn">CustomB64Codec</span>(<span class="tok-kw">comptime</span> map: [<span class="tok-number">64</span>]<span class="tok-type">u8</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L332"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L333"> <span class="tok-kw">const</span> map64 = map;</span> <span class="line" id="L334"></span> <span class="line" id="L335"> <span class="tok-kw">fn</span> <span class="tok-fn">encodedLen</span>(len: <span class="tok-type">usize</span>) <span class="tok-type">usize</span> {</span> <span class="line" id="L336"> <span class="tok-kw">return</span> (len <span class="tok-number">4</span> + <span class="tok-number">2</span>) / <span class="tok-number">3</span>;</span> <span class="line" id="L337"> }</span> <span class="line" id="L338"></span> <span class="line" id="L339"> <span class="tok-kw">fn</span> <span class="tok-fn">decodedLen</span>(len: <span class="tok-type">usize</span>) <span class="tok-type">usize</span> {</span> <span class="line" id="L340"> <span class="tok-kw">return</span> len / <span class="tok-number">4</span> * <span class="tok-number">3</span> + (len % <span class="tok-number">4</span>) * <span class="tok-number">3</span> / <span class="tok-number">4</span>;</span> <span class="line" id="L341"> }</span> <span class="line" id="L342"></span> <span class="line" id="L343"> <span class="tok-kw">fn</span> <span class="tok-fn">intEncode</span>(dst: []<span class="tok-type">u8</span>, src: <span class="tok-kw">anytype</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L344"> <span class="tok-kw">var</span> n = src;</span> <span class="line" id="L345"> <span class="tok-kw">for</span> (dst) \|x\| {</span> <span class="line" id="L346"> x. = map64[<span class="tok-builtin">@as</span>(<span class="tok-type">u6</span>, <span class="tok-builtin">@truncate</span>(n))];</span> <span class="line" id="L347"> n = math.shr(<span class="tok-builtin">@TypeOf</span>(src), n, <span class="tok-number">6</span>);</span> <span class="line" id="L348"> }</span> <span class="line" id="L349"> }</span> <span class="line" id="L350"></span> <span class="line" id="L351"> <span class="tok-kw">fn</span> <span class="tok-fn">intDecode</span>(<span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>, src: <span class="tok-kw">const</span> [(<span class="tok-builtin">@bitSizeOf</span>(T) + <span class="tok-number">5</span>) / <span class="tok-number">6</span>]<span class="tok-type">u8</span>) !T {</span> <span class="line" id="L352"> <span class="tok-kw">var</span> v: T = <span class="tok-number">0</span>;</span> <span class="line" id="L353"> <span class="tok-kw">for</span> (src, <span class="tok-number">0</span>..) \|x, i\| {</span> <span class="line" id="L354"> <span class="tok-kw">const</span> vi = mem.indexOfScalar(<span class="tok-type">u8</span>, &map64, x) <span class="tok-kw">orelse</span> <span class="tok-kw">return</span> EncodingError.InvalidEncoding;</span> <span class="line" id="L355"> v \|= <span class="tok-builtin">@as</span>(T, <span class="tok-builtin">@intCast</span>(vi)) << <span class="tok-builtin">@as</span>(math.Log2Int(T), <span class="tok-builtin">@intCast</span>(i <span class="tok-number">6</span>));</span> <span class="line" id="L356"> }</span> <span class="line" id="L357"> <span class="tok-kw">return</span> v;</span> <span class="line" id="L358"> }</span> <span class="line" id="L359"></span> <span class="line" id="L360"> <span class="tok-kw">fn</span> <span class="tok-fn">decode</span>(dst: []<span class="tok-type">u8</span>, src: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L361"> std.debug.assert(dst.len == decodedLen(src.len));</span> <span class="line" id="L362"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L363"> <span class="tok-kw">while</span> (i < src.len / <span class="tok-number">4</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L364"> mem.writeIntSliceLittle(<span class="tok-type">u24</span>, dst[i * <span class="tok-number">3</span> ..], <span class="tok-kw">try</span> intDecode(<span class="tok-type">u24</span>, src[i * <span class="tok-number">4</span> ..][<span class="tok-number">0</span>..<span class="tok-number">4</span>]));</span> <span class="line" id="L365"> }</span> <span class="line" id="L366"> <span class="tok-kw">const</span> leftover = src[i * <span class="tok-number">4</span> ..];</span> <span class="line" id="L367"> <span class="tok-kw">var</span> v: <span class="tok-type">u24</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L368"> <span class="tok-kw">for</span> (leftover, <span class="tok-number">0</span>..) \|_, j\| {</span> <span class="line" id="L369"> v \|= <span class="tok-builtin">@as</span>(<span class="tok-type">u24</span>, <span class="tok-kw">try</span> intDecode(<span class="tok-type">u6</span>, leftover[j..][<span class="tok-number">0</span>..<span class="tok-number">1</span>])) << <span class="tok-builtin">@as</span>(<span class="tok-type">u5</span>, <span class="tok-builtin">@intCast</span>(j * <span class="tok-number">6</span>));</span> <span class="line" id="L370"> }</span> <span class="line" id="L371"> <span class="tok-kw">for</span> (dst[i * <span class="tok-number">3</span> ..], <span class="tok-number">0</span>..) \|x, j\| {</span> <span class="line" id="L372"> x. = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>(v >> <span class="tok-builtin">@as</span>(<span class="tok-type">u5</span>, <span class="tok-builtin">@intCast</span>(j * <span class="tok-number">8</span>))));</span> <span class="line" id="L373"> }</span> <span class="line" id="L374"> }</span> <span class="line" id="L375"></span> <span class="line" id="L376"> <span class="tok-kw">fn</span> <span class="tok-fn">encode</span>(dst: []<span class="tok-type">u8</span>, src: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L377"> std.debug.assert(dst.len == encodedLen(src.len));</span> <span class="line" id="L378"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L379"> <span class="tok-kw">while</span> (i < src.len / <span class="tok-number">3</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L380"> intEncode(dst[i * <span class="tok-number">4</span> ..][<span class="tok-number">0</span>..<span class="tok-number">4</span>], mem.readIntSliceLittle(<span class="tok-type">u24</span>, src[i * <span class="tok-number">3</span> ..]));</span> <span class="line" id="L381"> }</span> <span class="line" id="L382"> <span class="tok-kw">const</span> leftover = src[i * <span class="tok-number">3</span> ..];</span> <span class="line" id="L383"> <span class="tok-kw">var</span> v: <span class="tok-type">u24</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L384"> <span class="tok-kw">for</span> (leftover, <span class="tok-number">0</span>..) \|x, j\| {</span> <span class="line" id="L385"> v \|= <span class="tok-builtin">@as</span>(<span class="tok-type">u24</span>, x) << <span class="tok-builtin">@as</span>(<span class="tok-type">u5</span>, <span class="tok-builtin">@intCast</span>(j * <span class="tok-number">8</span>));</span> <span class="line" id="L386"> }</span> <span class="line" id="L387"> intEncode(dst[i * <span class="tok-number">4</span> ..], v);</span> <span class="line" id="L388"> }</span> <span class="line" id="L389"> };</span> <span class="line" id="L390"> }</span> <span class="line" id="L391">};</span> <span class="line" id="L392"></span> <span class="line" id="L393"><span class="tok-comment">/// Hash and verify passwords using the PHC format.</span></span> <span class="line" id="L394"><span class="tok-kw">const</span> PhcFormatHasher = <span class="tok-kw">struct</span> {</span> <span class="line" id="L395"> <span class="tok-kw">const</span> alg_id = <span class="tok-str">"scrypt"</span>;</span> <span class="line" id="L396"> <span class="tok-kw">const</span> BinValue = phc_format.BinValue;</span> <span class="line" id="L397"></span> <span class="line" id="L398"> <span class="tok-kw">const</span> HashResult = <span class="tok-kw">struct</span> {</span> <span class="line" id="L399"> alg_id: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L400"> ln: <span class="tok-type">u6</span>,</span> <span class="line" id="L401"> r: <span class="tok-type">u30</span>,</span> <span class="line" id="L402"> p: <span class="tok-type">u30</span>,</span> <span class="line" id="L403"> salt: BinValue(max_salt_len),</span> <span class="line" id="L404"> hash: BinValue(max_hash_len),</span> <span class="line" id="L405"> };</span> <span class="line" id="L406"></span> <span class="line" id="L407"> <span class="tok-comment">/// Return a non-deterministic hash of the password encoded as a PHC-format string</span></span> <span class="line" id="L408"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">create</span>(</span> <span class="line" id="L409"> allocator: mem.Allocator,</span> <span class="line" id="L410"> password: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L411"> params: Params,</span> <span class="line" id="L412"> buf: []<span class="tok-type">u8</span>,</span> <span class="line" id="L413"> ) HasherError![]<span class="tok-kw">const</span> <span class="tok-type">u8</span> {</span> <span class="line" id="L414"> <span class="tok-kw">var</span> salt: [default_salt_len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L415"> crypto.random.bytes(&salt);</span> <span class="line" id="L416"></span> <span class="line" id="L417"> <span class="tok-kw">var</span> hash: [default_hash_len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L418"> <span class="tok-kw">try</span> kdf(allocator, &hash, password, &salt, params);</span> <span class="line" id="L419"></span> <span class="line" id="L420"> <span class="tok-kw">return</span> phc_format.serialize(HashResult{</span> <span class="line" id="L421"> .alg_id = alg_id,</span> <span class="line" id="L422"> .ln = params.ln,</span> <span class="line" id="L423"> .r = params.r,</span> <span class="line" id="L424"> .p = params.p,</span> <span class="line" id="L425"> .salt = <span class="tok-kw">try</span> BinValue(max_salt_len).fromSlice(&salt),</span> <span class="line" id="L426"> .hash = <span class="tok-kw">try</span> BinValue(max_hash_len).fromSlice(&hash),</span> <span class="line" id="L427"> }, buf);</span> <span class="line" id="L428"> }</span> <span class="line" id="L429"></span> <span class="line" id="L430"> <span class="tok-comment">/// Verify a password against a PHC-format encoded string</span></span> <span class="line" id="L431"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">verify</span>(</span> <span class="line" id="L432"> allocator: mem.Allocator,</span> <span class="line" id="L433"> str: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L434"> password: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L435"> ) HasherError!<span class="tok-type">void</span> {</span> <span class="line" id="L436"> <span class="tok-kw">const</span> hash_result = <span class="tok-kw">try</span> phc_format.deserialize(HashResult, str);</span> <span class="line" id="L437"> <span class="tok-kw">if</span> (!mem.eql(<span class="tok-type">u8</span>, hash_result.alg_id, alg_id)) <span class="tok-kw">return</span> HasherError.PasswordVerificationFailed;</span> <span class="line" id="L438"> <span class="tok-kw">const</span> params = Params{ .ln = hash_result.ln, .r = hash_result.r, .p = hash_result.p };</span> <span class="line" id="L439"> <span class="tok-kw">const</span> expected_hash = hash_result.hash.constSlice();</span> <span class="line" id="L440"> <span class="tok-kw">var</span> hash_buf: [max_hash_len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L441"> <span class="tok-kw">if</span> (expected_hash.len > hash_buf.len) <span class="tok-kw">return</span> HasherError.InvalidEncoding;</span> <span class="line" id="L442"> <span class="tok-kw">var</span> hash = hash_buf[<span class="tok-number">0</span>..expected_hash.len];</span> <span class="line" id="L443"> <span class="tok-kw">try</span> kdf(allocator, hash, password, hash_result.salt.constSlice(), params);</span> <span class="line" id="L444"> <span class="tok-kw">if</span> (!mem.eql(<span class="tok-type">u8</span>, hash, expected_hash)) <span class="tok-kw">return</span> HasherError.PasswordVerificationFailed;</span> <span class="line" id="L445"> }</span> <span class="line" id="L446">};</span> <span class="line" id="L447"></span> <span class="line" id="L448"><span class="tok-comment">/// Hash and verify passwords using the modular crypt format.</span></span> <span class="line" id="L449"><span class="tok-kw">const</span> CryptFormatHasher = <span class="tok-kw">struct</span> {</span> <span class="line" id="L450"> <span class="tok-kw">const</span> BinValue = crypt_format.BinValue;</span> <span class="line" id="L451"> <span class="tok-kw">const</span> HashResult = crypt_format.HashResult(max_hash_len);</span> <span class="line" id="L452"></span> <span class="line" id="L453"> <span class="tok-comment">/// Length of a string returned by the create() function</span></span> <span class="line" id="L454"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> pwhash_str_length: <span class="tok-type">usize</span> = <span class="tok-number">101</span>;</span> <span class="line" id="L455"></span> <span class="line" id="L456"> <span class="tok-comment">/// Return a non-deterministic hash of the password encoded into the modular crypt format</span></span> <span class="line" id="L457"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">create</span>(</span> <span class="line" id="L458"> allocator: mem.Allocator,</span> <span class="line" id="L459"> password: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L460"> params: Params,</span> <span class="line" id="L461"> buf: []<span class="tok-type">u8</span>,</span> <span class="line" id="L462"> ) HasherError![]<span class="tok-kw">const</span> <span class="tok-type">u8</span> {</span> <span class="line" id="L463"> <span class="tok-kw">var</span> salt_bin: [default_salt_len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L464"> crypto.random.bytes(&salt_bin);</span> <span class="line" id="L465"> <span class="tok-kw">const</span> salt = crypt_format.saltFromBin(salt_bin.len, salt_bin);</span> <span class="line" id="L466"></span> <span class="line" id="L467"> <span class="tok-kw">var</span> hash: [default_hash_len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L468"> <span class="tok-kw">try</span> kdf(allocator, &hash, password, &salt, params);</span> <span class="line" id="L469"></span> <span class="line" id="L470"> <span class="tok-kw">return</span> crypt_format.serialize(HashResult{</span> <span class="line" id="L471"> .ln = params.ln,</span> <span class="line" id="L472"> .r = params.r,</span> <span class="line" id="L473"> .p = params.p,</span> <span class="line" id="L474"> .salt = &salt,</span> <span class="line" id="L475"> .hash = <span class="tok-kw">try</span> BinValue(max_hash_len).fromSlice(&hash),</span> <span class="line" id="L476"> }, buf);</span> <span class="line" id="L477"> }</span> <span class="line" id="L478"></span> <span class="line" id="L479"> <span class="tok-comment">/// Verify a password against a string in modular crypt format</span></span> <span class="line" id="L480"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">verify</span>(</span> <span class="line" id="L481"> allocator: mem.Allocator,</span> <span class="line" id="L482"> str: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L483"> password: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L484"> ) HasherError!<span class="tok-type">void</span> {</span> <span class="line" id="L485"> <span class="tok-kw">const</span> hash_result = <span class="tok-kw">try</span> crypt_format.deserialize(HashResult, str);</span> <span class="line" id="L486"> <span class="tok-kw">const</span> params = Params{ .ln = hash_result.ln, .r = hash_result.r, .p = hash_result.p };</span> <span class="line" id="L487"> <span class="tok-kw">const</span> expected_hash = hash_result.hash.constSlice();</span> <span class="line" id="L488"> <span class="tok-kw">var</span> hash_buf: [max_hash_len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L489"> <span class="tok-kw">if</span> (expected_hash.len > hash_buf.len) <span class="tok-kw">return</span> HasherError.InvalidEncoding;</span> <span class="line" id="L490"> <span class="tok-kw">var</span> hash = hash_buf[<span class="tok-number">0</span>..expected_hash.len];</span> <span class="line" id="L491"> <span class="tok-kw">try</span> kdf(allocator, hash, password, hash_result.salt, params);</span> <span class="line" id="L492"> <span class="tok-kw">if</span> (!mem.eql(<span class="tok-type">u8</span>, hash, expected_hash)) <span class="tok-kw">return</span> HasherError.PasswordVerificationFailed;</span> <span class="line" id="L493"> }</span> <span class="line" id="L494">};</span> <span class="line" id="L495"></span> <span class="line" id="L496"><span class="tok-comment">/// Options for hashing a password.</span></span> <span class="line" id="L497"><span class="tok-comment">///</span></span> <span class="line" id="L498"><span class="tok-comment">/// Allocator is required for scrypt.</span></span> <span class="line" id="L499"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> HashOptions = <span class="tok-kw">struct</span> {</span> <span class="line" id="L500"> allocator: ?mem.Allocator,</span> <span class="line" id="L501"> params: Params,</span> <span class="line" id="L502"> encoding: pwhash.Encoding,</span> <span class="line" id="L503">};</span> <span class="line" id="L504"></span> <span class="line" id="L505"><span class="tok-comment">/// Compute a hash of a password using the scrypt key derivation function.</span></span> <span class="line" id="L506"><span class="tok-comment">/// The function returns a string that includes all the parameters required for verification.</span></span> <span class="line" id="L507"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">strHash</span>(</span> <span class="line" id="L508"> password: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L509"> options: HashOptions,</span> <span class="line" id="L510"> out: []<span class="tok-type">u8</span>,</span> <span class="line" id="L511">) Error![]<span class="tok-kw">const</span> <span class="tok-type">u8</span> {</span> <span class="line" id="L512"> <span class="tok-kw">const</span> allocator = options.allocator <span class="tok-kw">orelse</span> <span class="tok-kw">return</span> Error.AllocatorRequired;</span> <span class="line" id="L513"> <span class="tok-kw">switch</span> (options.encoding) {</span> <span class="line" id="L514"> .phc => <span class="tok-kw">return</span> PhcFormatHasher.create(allocator, password, options.params, out),</span> <span class="line" id="L515"> .crypt => <span class="tok-kw">return</span> CryptFormatHasher.create(allocator, password, options.params, out),</span> <span class="line" id="L516"> }</span> <span class="line" id="L517">}</span> <span class="line" id="L518"></span> <span class="line" id="L519"><span class="tok-comment">/// Options for hash verification.</span></span> <span class="line" id="L520"><span class="tok-comment">///</span></span> <span class="line" id="L521"><span class="tok-comment">/// Allocator is required for scrypt.</span></span> <span class="line" id="L522"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> VerifyOptions = <span class="tok-kw">struct</span> {</span> <span class="line" id="L523"> allocator: ?mem.Allocator,</span> <span class="line" id="L524">};</span> <span class="line" id="L525"></span> <span class="line" id="L526"><span class="tok-comment">/// Verify that a previously computed hash is valid for a given password.</span></span> <span class="line" id="L527"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">strVerify</span>(</span> <span class="line" id="L528"> str: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L529"> password: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L530"> options: VerifyOptions,</span> <span class="line" id="L531">) Error!<span class="tok-type">void</span> {</span> <span class="line" id="L532"> <span class="tok-kw">const</span> allocator = options.allocator <span class="tok-kw">orelse</span> <span class="tok-kw">return</span> Error.AllocatorRequired;</span> <span class="line" id="L533"> <span class="tok-kw">if</span> (mem.startsWith(<span class="tok-type">u8</span>, str, crypt_format.prefix)) {</span> <span class="line" id="L534"> <span class="tok-kw">return</span> CryptFormatHasher.verify(allocator, str, password);</span> <span class="line" id="L535"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L536"> <span class="tok-kw">return</span> PhcFormatHasher.verify(allocator, str, password);</span> <span class="line" id="L537"> }</span> <span class="line" id="L538">}</span> <span class="line" id="L539"></span> <span class="line" id="L540"><span class="tok-comment">// These tests take way too long to run, so I have disabled them.</span> </span> <span class="line" id="L541"><span class="tok-kw">const</span> run_long_tests = <span class="tok-null">false</span>;</span> <span class="line" id="L542"></span> <span class="line" id="L543"><span class="tok-kw">test</span> <span class="tok-str">"kdf"</span> {</span> <span class="line" id="L544"> <span class="tok-kw">if</span> (!run_long_tests) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SkipZigTest;</span> <span class="line" id="L545"></span> <span class="line" id="L546"> <span class="tok-kw">const</span> password = <span class="tok-str">"testpass"</span>;</span> <span class="line" id="L547"> <span class="tok-kw">const</span> salt = <span class="tok-str">"saltsalt"</span>;</span> <span class="line" id="L548"></span> <span class="line" id="L549"> <span class="tok-kw">var</span> dk: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L550"> <span class="tok-kw">try</span> kdf(std.testing.allocator, &dk, password, salt, .{ .ln = <span class="tok-number">15</span>, .r = <span class="tok-number">8</span>, .p = <span class="tok-number">1</span> });</span> <span class="line" id="L551"></span> <span class="line" id="L552"> <span class="tok-kw">const</span> hex = <span class="tok-str">"1e0f97c3f6609024022fbe698da29c2fe53ef1087a8e396dc6d5d2a041e886de"</span>;</span> <span class="line" id="L553"> <span class="tok-kw">var</span> bytes: [hex.len / <span class="tok-number">2</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L554"> _ = <span class="tok-kw">try</span> fmt.hexToBytes(&bytes, hex);</span> <span class="line" id="L555"></span> <span class="line" id="L556"> <span class="tok-kw">try</span> std.testing.expectEqualSlices(<span class="tok-type">u8</span>, &bytes, &dk);</span> <span class="line" id="L557">}</span> <span class="line" id="L558"></span> <span class="line" id="L559"><span class="tok-kw">test</span> <span class="tok-str">"kdf rfc 1"</span> {</span> <span class="line" id="L560"> <span class="tok-kw">if</span> (!run_long_tests) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SkipZigTest;</span> <span class="line" id="L561"></span> <span class="line" id="L562"> <span class="tok-kw">const</span> password = <span class="tok-str">""</span>;</span> <span class="line" id="L563"> <span class="tok-kw">const</span> salt = <span class="tok-str">""</span>;</span> <span class="line" id="L564"></span> <span class="line" id="L565"> <span class="tok-kw">var</span> dk: [<span class="tok-number">64</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L566"> <span class="tok-kw">try</span> kdf(std.testing.allocator, &dk, password, salt, .{ .ln = <span class="tok-number">4</span>, .r = <span class="tok-number">1</span>, .p = <span class="tok-number">1</span> });</span> <span class="line" id="L567"></span> <span class="line" id="L568"> <span class="tok-kw">const</span> hex = <span class="tok-str">"77d6576238657b203b19ca42c18a0497f16b4844e3074ae8dfdffa3fede21442fcd0069ded0948f8326a753a0fc81f17e8d3e0fb2e0d3628cf35e20c38d18906"</span>;</span> <span class="line" id="L569"> <span class="tok-kw">var</span> bytes: [hex.len / <span class="tok-number">2</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L570"> _ = <span class="tok-kw">try</span> fmt.hexToBytes(&bytes, hex);</span> <span class="line" id="L571"></span> <span class="line" id="L572"> <span class="tok-kw">try</span> std.testing.expectEqualSlices(<span class="tok-type">u8</span>, &bytes, &dk);</span> <span class="line" id="L573">}</span> <span class="line" id="L574"></span> <span class="line" id="L575"><span class="tok-kw">test</span> <span class="tok-str">"kdf rfc 2"</span> {</span> <span class="line" id="L576"> <span class="tok-kw">if</span> (!run_long_tests) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SkipZigTest;</span> <span class="line" id="L577"></span> <span class="line" id="L578"> <span class="tok-kw">const</span> password = <span class="tok-str">"password"</span>;</span> <span class="line" id="L579"> <span class="tok-kw">const</span> salt = <span class="tok-str">"NaCl"</span>;</span> <span class="line" id="L580"></span> <span class="line" id="L581"> <span class="tok-kw">var</span> dk: [<span class="tok-number">64</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L582"> <span class="tok-kw">try</span> kdf(std.testing.allocator, &dk, password, salt, .{ .ln = <span class="tok-number">10</span>, .r = <span class="tok-number">8</span>, .p = <span class="tok-number">16</span> });</span> <span class="line" id="L583"></span> <span class="line" id="L584"> <span class="tok-kw">const</span> hex = <span class="tok-str">"fdbabe1c9d3472007856e7190d01e9fe7c6ad7cbc8237830e77376634b3731622eaf30d92e22a3886ff109279d9830dac727afb94a83ee6d8360cbdfa2cc0640"</span>;</span> <span class="line" id="L585"> <span class="tok-kw">var</span> bytes: [hex.len / <span class="tok-number">2</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L586"> _ = <span class="tok-kw">try</span> fmt.hexToBytes(&bytes, hex);</span> <span class="line" id="L587"></span> <span class="line" id="L588"> <span class="tok-kw">try</span> std.testing.expectEqualSlices(<span class="tok-type">u8</span>, &bytes, &dk);</span> <span class="line" id="L589">}</span> <span class="line" id="L590"></span> <span class="line" id="L591"><span class="tok-kw">test</span> <span class="tok-str">"kdf rfc 3"</span> {</span> <span class="line" id="L592"> <span class="tok-kw">if</span> (!run_long_tests) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SkipZigTest;</span> <span class="line" id="L593"></span> <span class="line" id="L594"> <span class="tok-kw">const</span> password = <span class="tok-str">"pleaseletmein"</span>;</span> <span class="line" id="L595"> <span class="tok-kw">const</span> salt = <span class="tok-str">"SodiumChloride"</span>;</span> <span class="line" id="L596"></span> <span class="line" id="L597"> <span class="tok-kw">var</span> dk: [<span class="tok-number">64</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L598"> <span class="tok-kw">try</span> kdf(std.testing.allocator, &dk, password, salt, .{ .ln = <span class="tok-number">14</span>, .r = <span class="tok-number">8</span>, .p = <span class="tok-number">1</span> });</span> <span class="line" id="L599"></span> <span class="line" id="L600"> <span class="tok-kw">const</span> hex = <span class="tok-str">"7023bdcb3afd7348461c06cd81fd38ebfda8fbba904f8e3ea9b543f6545da1f2d5432955613f0fcf62d49705242a9af9e61e85dc0d651e40dfcf017b45575887"</span>;</span> <span class="line" id="L601"> <span class="tok-kw">var</span> bytes: [hex.len / <span class="tok-number">2</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L602"> _ = <span class="tok-kw">try</span> fmt.hexToBytes(&bytes, hex);</span> <span class="line" id="L603"></span> <span class="line" id="L604"> <span class="tok-kw">try</span> std.testing.expectEqualSlices(<span class="tok-type">u8</span>, &bytes, &dk);</span> <span class="line" id="L605">}</span> <span class="line" id="L606"></span> <span class="line" id="L607"><span class="tok-kw">test</span> <span class="tok-str">"kdf rfc 4"</span> {</span> <span class="line" id="L608"> <span class="tok-kw">if</span> (!run_long_tests) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SkipZigTest;</span> <span class="line" id="L609"></span> <span class="line" id="L610"> <span class="tok-kw">const</span> password = <span class="tok-str">"pleaseletmein"</span>;</span> <span class="line" id="L611"> <span class="tok-kw">const</span> salt = <span class="tok-str">"SodiumChloride"</span>;</span> <span class="line" id="L612"></span> <span class="line" id="L613"> <span class="tok-kw">var</span> dk: [<span class="tok-number">64</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L614"> <span class="tok-kw">try</span> kdf(std.testing.allocator, &dk, password, salt, .{ .ln = <span class="tok-number">20</span>, .r = <span class="tok-number">8</span>, .p = <span class="tok-number">1</span> });</span> <span class="line" id="L615"></span> <span class="line" id="L616"> <span class="tok-kw">const</span> hex = <span class="tok-str">"2101cb9b6a511aaeaddbbe09cf70f881ec568d574a2ffd4dabe5ee9820adaa478e56fd8f4ba5d09ffa1c6d927c40f4c337304049e8a952fbcbf45c6fa77a41a4"</span>;</span> <span class="line" id="L617"> <span class="tok-kw">var</span> bytes: [hex.len / <span class="tok-number">2</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L618"> _ = <span class="tok-kw">try</span> fmt.hexToBytes(&bytes, hex);</span> <span class="line" id="L619"></span> <span class="line" id="L620"> <span class="tok-kw">try</span> std.testing.expectEqualSlices(<span class="tok-type">u8</span>, &bytes, &dk);</span> <span class="line" id="L621">}</span> <span class="line" id="L622"></span> <span class="line" id="L623"><span class="tok-kw">test</span> <span class="tok-str">"password hashing (crypt format)"</span> {</span> <span class="line" id="L624"> <span class="tok-kw">if</span> (!run_long_tests) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SkipZigTest;</span> <span class="line" id="L625"></span> <span class="line" id="L626"> <span class="tok-kw">const</span> alloc = std.testing.allocator;</span> <span class="line" id="L627"></span> <span class="line" id="L628"> <span class="tok-kw">const</span> str = <span class="tok-str">"$7$A6....1....TrXs5Zk6s8sWHpQgWDIXTR8kUU3s6Jc3s.DtdS8M2i4$a4ik5hGDN7foMuHOW.cp.CtX01UyCeO0.JAG.AHPpx5"</span>;</span> <span class="line" id="L629"> <span class="tok-kw">const</span> password = <span class="tok-str">"Y0!?iQa9M%5ekffW(`"</span>;</span> <span class="line" id="L630"> <span class="tok-kw">try</span> CryptFormatHasher.verify(alloc, str, password);</span> <span class="line" id="L631"></span> <span class="line" id="L632"> <span class="tok-kw">const</span> params = Params.interactive;</span> <span class="line" id="L633"> <span class="tok-kw">var</span> buf: [CryptFormatHasher.pwhash_str_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L634"> <span class="tok-kw">const</span> str2 = <span class="tok-kw">try</span> CryptFormatHasher.create(alloc, password, params, &buf);</span> <span class="line" id="L635"> <span class="tok-kw">try</span> CryptFormatHasher.verify(alloc, str2, password);</span> <span class="line" id="L636">}</span> <span class="line" id="L637"></span> <span class="line" id="L638"><span class="tok-kw">test</span> <span class="tok-str">"strHash and strVerify"</span> {</span> <span class="line" id="L639"> <span class="tok-kw">if</span> (!run_long_tests) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SkipZigTest;</span> <span class="line" id="L640"></span> <span class="line" id="L641"> <span class="tok-kw">const</span> alloc = std.testing.allocator;</span> <span class="line" id="L642"></span> <span class="line" id="L643"> <span class="tok-kw">const</span> password = <span class="tok-str">"testpass"</span>;</span> <span class="line" id="L644"> <span class="tok-kw">const</span> params = Params.interactive;</span> <span class="line" id="L645"> <span class="tok-kw">const</span> verify_options = VerifyOptions{ .allocator = alloc };</span> <span class="line" id="L646"> <span class="tok-kw">var</span> buf: [<span class="tok-number">128</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L647"></span> <span class="line" id="L648"> {</span> <span class="line" id="L649"> <span class="tok-kw">const</span> str = <span class="tok-kw">try</span> strHash(</span> <span class="line" id="L650"> password,</span> <span class="line" id="L651"> .{ .allocator = alloc, .params = params, .encoding = .crypt },</span> <span class="line" id="L652"> &buf,</span> <span class="line" id="L653"> );</span> <span class="line" id="L654"> <span class="tok-kw">try</span> strVerify(str, password, verify_options);</span> <span class="line" id="L655"> }</span> <span class="line" id="L656"> {</span> <span class="line" id="L657"> <span class="tok-kw">const</span> str = <span class="tok-kw">try</span> strHash(</span> <span class="line" id="L658"> password,</span> <span class="line" id="L659"> .{ .allocator = alloc, .params = params, .encoding = .phc },</span> <span class="line" id="L660"> &buf,</span> <span class="line" id="L661"> );</span> <span class="line" id="L662"> <span class="tok-kw">try</span> strVerify(str, password, verify_options);</span> <span class="line" id="L663"> }</span> <span class="line" id="L664">}</span> <span class="line" id="L665"></span> <span class="line" id="L666"><span class="tok-kw">test</span> <span class="tok-str">"unix-scrypt"</span> {</span> <span class="line" id="L667"> <span class="tok-kw">if</span> (!run_long_tests) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SkipZigTest;</span> <span class="line" id="L668"></span> <span class="line" id="L669"> <span class="tok-kw">const</span> alloc = std.testing.allocator;</span> <span class="line" id="L670"></span> <span class="line" id="L671"> <span class="tok-comment">// https://gitlab.com/jas/scrypt-unix-crypt/blob/master/unix-scrypt.txt</span> </span> <span class="line" id="L672"> {</span> <span class="line" id="L673"> <span class="tok-kw">const</span> str = <span class="tok-str">"$7$C6..../....SodiumChloride$kBGj9fHznVYFQMEn/qDCfrDevf9YDtcDdKvEqHJLV8D"</span>;</span> <span class="line" id="L674"> <span class="tok-kw">const</span> password = <span class="tok-str">"pleaseletmein"</span>;</span> <span class="line" id="L675"> <span class="tok-kw">try</span> strVerify(str, password, .{ .allocator = alloc });</span> <span class="line" id="L676"> }</span> <span class="line" id="L677"> <span class="tok-comment">// one of the libsodium test vectors</span> </span> <span class="line" id="L678"> {</span> <span class="line" id="L679"> <span class="tok-kw">const</span> str = <span class="tok-str">"$7$B6....1....75gBMAGwfFWZqBdyF3WdTQnWdUsuTiWjG1fF9c1jiSD$tc8RoB3.Em3/zNgMLWo2u00oGIoTyJv4fl3Fl8Tix72"</span>;</span> <span class="line" id="L680"> <span class="tok-kw">const</span> password = <span class="tok-str">"^T5H$JYt39n%K*j:W]!1s?vg!:jGi]Ax?..l7[p0v:1jHTpla9;]bUN;?bWyCbtqg nrDFal+Jxl3,2`#^tFSu%v_+7iYse8-cCkNf!tD=KrW)"</span>;</span> <span class="line" id="L681"> <span class="tok-kw">try</span> strVerify(str, password, .{ .allocator = alloc });</span> <span class="line" id="L682"> }</span> <span class="line" id="L683">}</span> <span class="line" id="L684"></span> <span class="line" id="L685"><span class="tok-kw">test</span> <span class="tok-str">"crypt format"</span> {</span> <span class="line" id="L686"> <span class="tok-kw">const</span> str = <span class="tok-str">"$7$C6..../....SodiumChloride$kBGj9fHznVYFQMEn/qDCfrDevf9YDtcDdKvEqHJLV8D"</span>;</span> <span class="line" id="L687"> <span class="tok-kw">const</span> params = <span class="tok-kw">try</span> crypt_format.deserialize(crypt_format.HashResult(<span class="tok-number">32</span>), str);</span> <span class="line" id="L688"> <span class="tok-kw">var</span> buf: [str.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L689"> <span class="tok-kw">const</span> s1 = <span class="tok-kw">try</span> crypt_format.serialize(params, &buf);</span> <span class="line" id="L690"> <span class="tok-kw">try</span> std.testing.expectEqualStrings(s1, str);</span> <span class="line" id="L691">}</span> <span class="line" id="L692"></span> <span class="line" id="L693"><span class="tok-kw">test</span> <span class="tok-str">"kdf fast"</span> {</span> <span class="line" id="L694"> <span class="tok-kw">const</span> TestVector = <span class="tok-kw">struct</span> {</span> <span class="line" id="L695"> password: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L696"> salt: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L697"> params: Params,</span> <span class="line" id="L698"> want: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L699"> };</span> <span class="line" id="L700"> <span class="tok-kw">const</span> test_vectors = [_]TestVector{</span> <span class="line" id="L701"> .{</span> <span class="line" id="L702"> .password = <span class="tok-str">"p"</span>,</span> <span class="line" id="L703"> .salt = <span class="tok-str">"s"</span>,</span> <span class="line" id="L704"> .params = .{ .ln = <span class="tok-number">1</span>, .r = <span class="tok-number">1</span>, .p = <span class="tok-number">1</span> },</span> <span class="line" id="L705"> .want = &([_]<span class="tok-type">u8</span>{</span> <span class="line" id="L706"> <span class="tok-number">0x48</span>, <span class="tok-number">0xb0</span>, <span class="tok-number">0xd2</span>, <span class="tok-number">0xa8</span>, <span class="tok-number">0xa3</span>, <span class="tok-number">0x27</span>, <span class="tok-number">0x26</span>, <span class="tok-number">0x11</span>,</span> <span class="line" id="L707"> <span class="tok-number">0x98</span>, <span class="tok-number">0x4c</span>, <span class="tok-number">0x50</span>, <span class="tok-number">0xeb</span>, <span class="tok-number">0xd6</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0xaf</span>, <span class="tok-number">0x52</span>,</span> <span class="line" id="L708"> }),</span> <span class="line" id="L709"> },</span> <span class="line" id="L710"> };</span> <span class="line" id="L711"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (test_vectors) \|v\| {</span> <span class="line" id="L712"> <span class="tok-kw">var</span> dk: [v.want.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L713"> <span class="tok-kw">try</span> kdf(std.testing.allocator, &dk, v.password, v.salt, v.params);</span> <span class="line" id="L714"> <span class="tok-kw">try</span> std.testing.expectEqualSlices(<span class="tok-type">u8</span>, &dk, v.want);</span> <span class="line" id="L715"> }</span> <span class="line" id="L716">}</span> <span class="line" id="L717"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/crypto/md5.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/md5.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"../std.zig"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L3"><span class="tok-kw">const</span> math = std.math;</span> <span class="line" id="L4"></span> <span class="line" id="L5"><span class="tok-kw">const</span> RoundParam = <span class="tok-kw">struct</span> {</span> <span class="line" id="L6"> a: <span class="tok-type">usize</span>,</span> <span class="line" id="L7"> b: <span class="tok-type">usize</span>,</span> <span class="line" id="L8"> c: <span class="tok-type">usize</span>,</span> <span class="line" id="L9"> d: <span class="tok-type">usize</span>,</span> <span class="line" id="L10"> k: <span class="tok-type">usize</span>,</span> <span class="line" id="L11"> s: <span class="tok-type">u32</span>,</span> <span class="line" id="L12"> t: <span class="tok-type">u32</span>,</span> <span class="line" id="L13">};</span> <span class="line" id="L14"></span> <span class="line" id="L15"><span class="tok-kw">fn</span> <span class="tok-fn">roundParam</span>(a: <span class="tok-type">usize</span>, b: <span class="tok-type">usize</span>, c: <span class="tok-type">usize</span>, d: <span class="tok-type">usize</span>, k: <span class="tok-type">usize</span>, s: <span class="tok-type">u32</span>, t: <span class="tok-type">u32</span>) RoundParam {</span> <span class="line" id="L16"> <span class="tok-kw">return</span> RoundParam{</span> <span class="line" id="L17"> .a = a,</span> <span class="line" id="L18"> .b = b,</span> <span class="line" id="L19"> .c = c,</span> <span class="line" id="L20"> .d = d,</span> <span class="line" id="L21"> .k = k,</span> <span class="line" id="L22"> .s = s,</span> <span class="line" id="L23"> .t = t,</span> <span class="line" id="L24"> };</span> <span class="line" id="L25">}</span> <span class="line" id="L26"></span> <span class="line" id="L27"><span class="tok-comment">/// The MD5 function is now considered cryptographically broken.</span></span> <span class="line" id="L28"><span class="tok-comment">/// Namely, it is trivial to find multiple inputs producing the same hash.</span></span> <span class="line" id="L29"><span class="tok-comment">/// For a fast-performing, cryptographically secure hash function, see SHA512/256, BLAKE2 or BLAKE3.</span></span> <span class="line" id="L30"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Md5 = <span class="tok-kw">struct</span> {</span> <span class="line" id="L31"> <span class="tok-kw">const</span> Self = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L32"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> block_length = <span class="tok-number">64</span>;</span> <span class="line" id="L33"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> digest_length = <span class="tok-number">16</span>;</span> <span class="line" id="L34"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Options = <span class="tok-kw">struct</span> {};</span> <span class="line" id="L35"></span> <span class="line" id="L36"> s: [<span class="tok-number">4</span>]<span class="tok-type">u32</span>,</span> <span class="line" id="L37"> <span class="tok-comment">// Streaming Cache</span> </span> <span class="line" id="L38"> buf: [<span class="tok-number">64</span>]<span class="tok-type">u8</span>,</span> <span class="line" id="L39"> buf_len: <span class="tok-type">u8</span>,</span> <span class="line" id="L40"> total_len: <span class="tok-type">u64</span>,</span> <span class="line" id="L41"></span> <span class="line" id="L42"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">init</span>(options: Options) Self {</span> <span class="line" id="L43"> _ = options;</span> <span class="line" id="L44"> <span class="tok-kw">return</span> Self{</span> <span class="line" id="L45"> .s = [_]<span class="tok-type">u32</span>{</span> <span class="line" id="L46"> <span class="tok-number">0x67452301</span>,</span> <span class="line" id="L47"> <span class="tok-number">0xEFCDAB89</span>,</span> <span class="line" id="L48"> <span class="tok-number">0x98BADCFE</span>,</span> <span class="line" id="L49"> <span class="tok-number">0x10325476</span>,</span> <span class="line" id="L50"> },</span> <span class="line" id="L51"> .buf = <span class="tok-null">undefined</span>,</span> <span class="line" id="L52"> .buf_len = <span class="tok-number">0</span>,</span> <span class="line" id="L53"> .total_len = <span class="tok-number">0</span>,</span> <span class="line" id="L54"> };</span> <span class="line" id="L55"> }</span> <span class="line" id="L56"></span> <span class="line" id="L57"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">hash</span>(b: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, out: [digest_length]<span class="tok-type">u8</span>, options: Options) <span class="tok-type">void</span> {</span> <span class="line" id="L58"> <span class="tok-kw">var</span> d = Md5.init(options);</span> <span class="line" id="L59"> d.update(b);</span> <span class="line" id="L60"> d.final(out);</span> <span class="line" id="L61"> }</span> <span class="line" id="L62"></span> <span class="line" id="L63"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">update</span>(d: Self, b: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L64"> <span class="tok-kw">var</span> off: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L65"></span> <span class="line" id="L66"> <span class="tok-comment">// Partial buffer exists from previous update. Copy into buffer then hash.</span> </span> <span class="line" id="L67"> <span class="tok-kw">if</span> (d.buf_len != <span class="tok-number">0</span> <span class="tok-kw">and</span> d.buf_len + b.len >= <span class="tok-number">64</span>) {</span> <span class="line" id="L68"> off += <span class="tok-number">64</span> - d.buf_len;</span> <span class="line" id="L69"> <span class="tok-builtin">@memcpy</span>(d.buf[d.buf_len..][<span class="tok-number">0</span>..off], b[<span class="tok-number">0</span>..off]);</span> <span class="line" id="L70"></span> <span class="line" id="L71"> d.round(&d.buf);</span> <span class="line" id="L72"> d.buf_len = <span class="tok-number">0</span>;</span> <span class="line" id="L73"> }</span> <span class="line" id="L74"></span> <span class="line" id="L75"> <span class="tok-comment">// Full middle blocks.</span> </span> <span class="line" id="L76"> <span class="tok-kw">while</span> (off + <span class="tok-number">64</span> <= b.len) : (off += <span class="tok-number">64</span>) {</span> <span class="line" id="L77"> d.round(b[off..][<span class="tok-number">0</span>..<span class="tok-number">64</span>]);</span> <span class="line" id="L78"> }</span> <span class="line" id="L79"></span> <span class="line" id="L80"> <span class="tok-comment">// Copy any remainder for next pass.</span> </span> <span class="line" id="L81"> <span class="tok-kw">const</span> b_slice = b[off..];</span> <span class="line" id="L82"> <span class="tok-builtin">@memcpy</span>(d.buf[d.buf_len..][<span class="tok-number">0</span>..b_slice.len], b_slice);</span> <span class="line" id="L83"> d.buf_len += <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>(b_slice.len));</span> <span class="line" id="L84"></span> <span class="line" id="L85"> <span class="tok-comment">// Md5 uses the bottom 64-bits for length padding</span> </span> <span class="line" id="L86"> d.total_len +%= b.len;</span> <span class="line" id="L87"> }</span> <span class="line" id="L88"></span> <span class="line" id="L89"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">final</span>(d: Self, out: [digest_length]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L90"> <span class="tok-comment">// The buffer here will never be completely full.</span> </span> <span class="line" id="L91"> <span class="tok-builtin">@memset</span>(d.buf[d.buf_len..], <span class="tok-number">0</span>);</span> <span class="line" id="L92"></span> <span class="line" id="L93"> <span class="tok-comment">// Append padding bits.</span> </span> <span class="line" id="L94"> d.buf[d.buf_len] = <span class="tok-number">0x80</span>;</span> <span class="line" id="L95"> d.buf_len += <span class="tok-number">1</span>;</span> <span class="line" id="L96"></span> <span class="line" id="L97"> <span class="tok-comment">// > 448 mod 512 so need to add an extra round to wrap around.</span> </span> <span class="line" id="L98"> <span class="tok-kw">if</span> (<span class="tok-number">64</span> - d.buf_len < <span class="tok-number">8</span>) {</span> <span class="line" id="L99"> d.round(d.buf[<span class="tok-number">0</span>..]);</span> <span class="line" id="L100"> <span class="tok-builtin">@memset</span>(d.buf[<span class="tok-number">0</span>..], <span class="tok-number">0</span>);</span> <span class="line" id="L101"> }</span> <span class="line" id="L102"></span> <span class="line" id="L103"> <span class="tok-comment">// Append message length.</span> </span> <span class="line" id="L104"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">1</span>;</span> <span class="line" id="L105"> <span class="tok-kw">var</span> len = d.total_len >> <span class="tok-number">5</span>;</span> <span class="line" id="L106"> d.buf[<span class="tok-number">56</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>(d.total_len & <span class="tok-number">0x1f</span>)) << <span class="tok-number">3</span>;</span> <span class="line" id="L107"> <span class="tok-kw">while</span> (i < <span class="tok-number">8</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L108"> d.buf[<span class="tok-number">56</span> + i] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>(len & <span class="tok-number">0xff</span>));</span> <span class="line" id="L109"> len >>= <span class="tok-number">8</span>;</span> <span class="line" id="L110"> }</span> <span class="line" id="L111"></span> <span class="line" id="L112"> d.round(d.buf[<span class="tok-number">0</span>..]);</span> <span class="line" id="L113"></span> <span class="line" id="L114"> <span class="tok-kw">for</span> (d.s, <span class="tok-number">0</span>..) \|s, j\| {</span> <span class="line" id="L115"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">4</span> * j ..][<span class="tok-number">0</span>..<span class="tok-number">4</span>], s);</span> <span class="line" id="L116"> }</span> <span class="line" id="L117"> }</span> <span class="line" id="L118"></span> <span class="line" id="L119"> <span class="tok-kw">fn</span> <span class="tok-fn">round</span>(d: Self, b: <span class="tok-kw">const</span> [<span class="tok-number">64</span>]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L120"> <span class="tok-kw">var</span> s: [<span class="tok-number">16</span>]<span class="tok-type">u32</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L121"></span> <span class="line" id="L122"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L123"> <span class="tok-kw">while</span> (i < <span class="tok-number">16</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L124"> s[i] = mem.readIntLittle(<span class="tok-type">u32</span>, b[i * <span class="tok-number">4</span> ..][<span class="tok-number">0</span>..<span class="tok-number">4</span>]);</span> <span class="line" id="L125"> }</span> <span class="line" id="L126"></span> <span class="line" id="L127"> <span class="tok-kw">var</span> v: [<span class="tok-number">4</span>]<span class="tok-type">u32</span> = [_]<span class="tok-type">u32</span>{</span> <span class="line" id="L128"> d.s[<span class="tok-number">0</span>],</span> <span class="line" id="L129"> d.s[<span class="tok-number">1</span>],</span> <span class="line" id="L130"> d.s[<span class="tok-number">2</span>],</span> <span class="line" id="L131"> d.s[<span class="tok-number">3</span>],</span> <span class="line" id="L132"> };</span> <span class="line" id="L133"></span> <span class="line" id="L134"> <span class="tok-kw">const</span> round0 = <span class="tok-kw">comptime</span> [_]RoundParam{</span> <span class="line" id="L135"> roundParam(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">7</span>, <span class="tok-number">0xD76AA478</span>),</span> <span class="line" id="L136"> roundParam(<span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">1</span>, <span class="tok-number">12</span>, <span class="tok-number">0xE8C7B756</span>),</span> <span class="line" id="L137"> roundParam(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">17</span>, <span class="tok-number">0x242070DB</span>),</span> <span class="line" id="L138"> roundParam(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">3</span>, <span class="tok-number">22</span>, <span class="tok-number">0xC1BDCEEE</span>),</span> <span class="line" id="L139"> roundParam(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">7</span>, <span class="tok-number">0xF57C0FAF</span>),</span> <span class="line" id="L140"> roundParam(<span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">5</span>, <span class="tok-number">12</span>, <span class="tok-number">0x4787C62A</span>),</span> <span class="line" id="L141"> roundParam(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">6</span>, <span class="tok-number">17</span>, <span class="tok-number">0xA8304613</span>),</span> <span class="line" id="L142"> roundParam(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">7</span>, <span class="tok-number">22</span>, <span class="tok-number">0xFD469501</span>),</span> <span class="line" id="L143"> roundParam(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">8</span>, <span class="tok-number">7</span>, <span class="tok-number">0x698098D8</span>),</span> <span class="line" id="L144"> roundParam(<span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">9</span>, <span class="tok-number">12</span>, <span class="tok-number">0x8B44F7AF</span>),</span> <span class="line" id="L145"> roundParam(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">10</span>, <span class="tok-number">17</span>, <span class="tok-number">0xFFFF5BB1</span>),</span> <span class="line" id="L146"> roundParam(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">11</span>, <span class="tok-number">22</span>, <span class="tok-number">0x895CD7BE</span>),</span> <span class="line" id="L147"> roundParam(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">12</span>, <span class="tok-number">7</span>, <span class="tok-number">0x6B901122</span>),</span> <span class="line" id="L148"> roundParam(<span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">13</span>, <span class="tok-number">12</span>, <span class="tok-number">0xFD987193</span>),</span> <span class="line" id="L149"> roundParam(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">14</span>, <span class="tok-number">17</span>, <span class="tok-number">0xA679438E</span>),</span> <span class="line" id="L150"> roundParam(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">15</span>, <span class="tok-number">22</span>, <span class="tok-number">0x49B40821</span>),</span> <span class="line" id="L151"> };</span> <span class="line" id="L152"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (round0) \|r\| {</span> <span class="line" id="L153"> v[r.a] = v[r.a] +% (v[r.d] ^ (v[r.b] & (v[r.c] ^ v[r.d]))) +% r.t +% s[r.k];</span> <span class="line" id="L154"> v[r.a] = v[r.b] +% math.rotl(<span class="tok-type">u32</span>, v[r.a], r.s);</span> <span class="line" id="L155"> }</span> <span class="line" id="L156"></span> <span class="line" id="L157"> <span class="tok-kw">const</span> round1 = <span class="tok-kw">comptime</span> [_]RoundParam{</span> <span class="line" id="L158"> roundParam(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">1</span>, <span class="tok-number">5</span>, <span class="tok-number">0xF61E2562</span>),</span> <span class="line" id="L159"> roundParam(<span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">6</span>, <span class="tok-number">9</span>, <span class="tok-number">0xC040B340</span>),</span> <span class="line" id="L160"> roundParam(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">11</span>, <span class="tok-number">14</span>, <span class="tok-number">0x265E5A51</span>),</span> <span class="line" id="L161"> roundParam(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">20</span>, <span class="tok-number">0xE9B6C7AA</span>),</span> <span class="line" id="L162"> roundParam(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">5</span>, <span class="tok-number">5</span>, <span class="tok-number">0xD62F105D</span>),</span> <span class="line" id="L163"> roundParam(<span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">10</span>, <span class="tok-number">9</span>, <span class="tok-number">0x02441453</span>),</span> <span class="line" id="L164"> roundParam(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">15</span>, <span class="tok-number">14</span>, <span class="tok-number">0xD8A1E681</span>),</span> <span class="line" id="L165"> roundParam(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">4</span>, <span class="tok-number">20</span>, <span class="tok-number">0xE7D3FBC8</span>),</span> <span class="line" id="L166"> roundParam(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">9</span>, <span class="tok-number">5</span>, <span class="tok-number">0x21E1CDE6</span>),</span> <span class="line" id="L167"> roundParam(<span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">14</span>, <span class="tok-number">9</span>, <span class="tok-number">0xC33707D6</span>),</span> <span class="line" id="L168"> roundParam(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">3</span>, <span class="tok-number">14</span>, <span class="tok-number">0xF4D50D87</span>),</span> <span class="line" id="L169"> roundParam(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">8</span>, <span class="tok-number">20</span>, <span class="tok-number">0x455A14ED</span>),</span> <span class="line" id="L170"> roundParam(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">13</span>, <span class="tok-number">5</span>, <span class="tok-number">0xA9E3E905</span>),</span> <span class="line" id="L171"> roundParam(<span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">2</span>, <span class="tok-number">9</span>, <span class="tok-number">0xFCEFA3F8</span>),</span> <span class="line" id="L172"> roundParam(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">7</span>, <span class="tok-number">14</span>, <span class="tok-number">0x676F02D9</span>),</span> <span class="line" id="L173"> roundParam(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">12</span>, <span class="tok-number">20</span>, <span class="tok-number">0x8D2A4C8A</span>),</span> <span class="line" id="L174"> };</span> <span class="line" id="L175"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (round1) \|r\| {</span> <span class="line" id="L176"> v[r.a] = v[r.a] +% (v[r.c] ^ (v[r.d] & (v[r.b] ^ v[r.c]))) +% r.t +% s[r.k];</span> <span class="line" id="L177"> v[r.a] = v[r.b] +% math.rotl(<span class="tok-type">u32</span>, v[r.a], r.s);</span> <span class="line" id="L178"> }</span> <span class="line" id="L179"></span> <span class="line" id="L180"> <span class="tok-kw">const</span> round2 = <span class="tok-kw">comptime</span> [_]RoundParam{</span> <span class="line" id="L181"> roundParam(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">5</span>, <span class="tok-number">4</span>, <span class="tok-number">0xFFFA3942</span>),</span> <span class="line" id="L182"> roundParam(<span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">8</span>, <span class="tok-number">11</span>, <span class="tok-number">0x8771F681</span>),</span> <span class="line" id="L183"> roundParam(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">11</span>, <span class="tok-number">16</span>, <span class="tok-number">0x6D9D6122</span>),</span> <span class="line" id="L184"> roundParam(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">14</span>, <span class="tok-number">23</span>, <span class="tok-number">0xFDE5380C</span>),</span> <span class="line" id="L185"> roundParam(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">1</span>, <span class="tok-number">4</span>, <span class="tok-number">0xA4BEEA44</span>),</span> <span class="line" id="L186"> roundParam(<span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">4</span>, <span class="tok-number">11</span>, <span class="tok-number">0x4BDECFA9</span>),</span> <span class="line" id="L187"> roundParam(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">7</span>, <span class="tok-number">16</span>, <span class="tok-number">0xF6BB4B60</span>),</span> <span class="line" id="L188"> roundParam(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">10</span>, <span class="tok-number">23</span>, <span class="tok-number">0xBEBFBC70</span>),</span> <span class="line" id="L189"> roundParam(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">13</span>, <span class="tok-number">4</span>, <span class="tok-number">0x289B7EC6</span>),</span> <span class="line" id="L190"> roundParam(<span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">0</span>, <span class="tok-number">11</span>, <span class="tok-number">0xEAA127FA</span>),</span> <span class="line" id="L191"> roundParam(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">3</span>, <span class="tok-number">16</span>, <span class="tok-number">0xD4EF3085</span>),</span> <span class="line" id="L192"> roundParam(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">6</span>, <span class="tok-number">23</span>, <span class="tok-number">0x04881D05</span>),</span> <span class="line" id="L193"> roundParam(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">9</span>, <span class="tok-number">4</span>, <span class="tok-number">0xD9D4D039</span>),</span> <span class="line" id="L194"> roundParam(<span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">12</span>, <span class="tok-number">11</span>, <span class="tok-number">0xE6DB99E5</span>),</span> <span class="line" id="L195"> roundParam(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">15</span>, <span class="tok-number">16</span>, <span class="tok-number">0x1FA27CF8</span>),</span> <span class="line" id="L196"> roundParam(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">2</span>, <span class="tok-number">23</span>, <span class="tok-number">0xC4AC5665</span>),</span> <span class="line" id="L197"> };</span> <span class="line" id="L198"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (round2) \|r\| {</span> <span class="line" id="L199"> v[r.a] = v[r.a] +% (v[r.b] ^ v[r.c] ^ v[r.d]) +% r.t +% s[r.k];</span> <span class="line" id="L200"> v[r.a] = v[r.b] +% math.rotl(<span class="tok-type">u32</span>, v[r.a], r.s);</span> <span class="line" id="L201"> }</span> <span class="line" id="L202"></span> <span class="line" id="L203"> <span class="tok-kw">const</span> round3 = <span class="tok-kw">comptime</span> [_]RoundParam{</span> <span class="line" id="L204"> roundParam(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">6</span>, <span class="tok-number">0xF4292244</span>),</span> <span class="line" id="L205"> roundParam(<span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">7</span>, <span class="tok-number">10</span>, <span class="tok-number">0x432AFF97</span>),</span> <span class="line" id="L206"> roundParam(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">14</span>, <span class="tok-number">15</span>, <span class="tok-number">0xAB9423A7</span>),</span> <span class="line" id="L207"> roundParam(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">5</span>, <span class="tok-number">21</span>, <span class="tok-number">0xFC93A039</span>),</span> <span class="line" id="L208"> roundParam(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">12</span>, <span class="tok-number">6</span>, <span class="tok-number">0x655B59C3</span>),</span> <span class="line" id="L209"> roundParam(<span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">10</span>, <span class="tok-number">0x8F0CCC92</span>),</span> <span class="line" id="L210"> roundParam(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">10</span>, <span class="tok-number">15</span>, <span class="tok-number">0xFFEFF47D</span>),</span> <span class="line" id="L211"> roundParam(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">21</span>, <span class="tok-number">0x85845DD1</span>),</span> <span class="line" id="L212"> roundParam(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">8</span>, <span class="tok-number">6</span>, <span class="tok-number">0x6FA87E4F</span>),</span> <span class="line" id="L213"> roundParam(<span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">15</span>, <span class="tok-number">10</span>, <span class="tok-number">0xFE2CE6E0</span>),</span> <span class="line" id="L214"> roundParam(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">6</span>, <span class="tok-number">15</span>, <span class="tok-number">0xA3014314</span>),</span> <span class="line" id="L215"> roundParam(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">13</span>, <span class="tok-number">21</span>, <span class="tok-number">0x4E0811A1</span>),</span> <span class="line" id="L216"> roundParam(<span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">6</span>, <span class="tok-number">0xF7537E82</span>),</span> <span class="line" id="L217"> roundParam(<span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">11</span>, <span class="tok-number">10</span>, <span class="tok-number">0xBD3AF235</span>),</span> <span class="line" id="L218"> roundParam(<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">15</span>, <span class="tok-number">0x2AD7D2BB</span>),</span> <span class="line" id="L219"> roundParam(<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">9</span>, <span class="tok-number">21</span>, <span class="tok-number">0xEB86D391</span>),</span> <span class="line" id="L220"> };</span> <span class="line" id="L221"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (round3) \|r\| {</span> <span class="line" id="L222"> v[r.a] = v[r.a] +% (v[r.c] ^ (v[r.b] \| ~v[r.d])) +% r.t +% s[r.k];</span> <span class="line" id="L223"> v[r.a] = v[r.b] +% math.rotl(<span class="tok-type">u32</span>, v[r.a], r.s);</span> <span class="line" id="L224"> }</span> <span class="line" id="L225"></span> <span class="line" id="L226"> d.s[<span class="tok-number">0</span>] +%= v[<span class="tok-number">0</span>];</span> <span class="line" id="L227"> d.s[<span class="tok-number">1</span>] +%= v[<span class="tok-number">1</span>];</span> <span class="line" id="L228"> d.s[<span class="tok-number">2</span>] +%= v[<span class="tok-number">2</span>];</span> <span class="line" id="L229"> d.s[<span class="tok-number">3</span>] +%= v[<span class="tok-number">3</span>];</span> <span class="line" id="L230"> }</span> <span class="line" id="L231">};</span> <span class="line" id="L232"></span> <span class="line" id="L233"><span class="tok-kw">const</span> htest = <span class="tok-builtin">@import</span>(<span class="tok-str">"test.zig"</span>);</span> <span class="line" id="L234"></span> <span class="line" id="L235"><span class="tok-kw">test</span> <span class="tok-str">"md5 single"</span> {</span> <span class="line" id="L236"> <span class="tok-kw">try</span> htest.assertEqualHash(Md5, <span class="tok-str">"d41d8cd98f00b204e9800998ecf8427e"</span>, <span class="tok-str">""</span>);</span> <span class="line" id="L237"> <span class="tok-kw">try</span> htest.assertEqualHash(Md5, <span class="tok-str">"0cc175b9c0f1b6a831c399e269772661"</span>, <span class="tok-str">"a"</span>);</span> <span class="line" id="L238"> <span class="tok-kw">try</span> htest.assertEqualHash(Md5, <span class="tok-str">"900150983cd24fb0d6963f7d28e17f72"</span>, <span class="tok-str">"abc"</span>);</span> <span class="line" id="L239"> <span class="tok-kw">try</span> htest.assertEqualHash(Md5, <span class="tok-str">"f96b697d7cb7938d525a2f31aaf161d0"</span>, <span class="tok-str">"message digest"</span>);</span> <span class="line" id="L240"> <span class="tok-kw">try</span> htest.assertEqualHash(Md5, <span class="tok-str">"c3fcd3d76192e4007dfb496cca67e13b"</span>, <span class="tok-str">"abcdefghijklmnopqrstuvwxyz"</span>);</span> <span class="line" id="L241"> <span class="tok-kw">try</span> htest.assertEqualHash(Md5, <span class="tok-str">"d174ab98d277d9f5a5611c2c9f419d9f"</span>, <span class="tok-str">"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"</span>);</span> <span class="line" id="L242"> <span class="tok-kw">try</span> htest.assertEqualHash(Md5, <span class="tok-str">"57edf4a22be3c955ac49da2e2107b67a"</span>, <span class="tok-str">"12345678901234567890123456789012345678901234567890123456789012345678901234567890"</span>);</span> <span class="line" id="L243">}</span> <span class="line" id="L244"></span> <span class="line" id="L245"><span class="tok-kw">test</span> <span class="tok-str">"md5 streaming"</span> {</span> <span class="line" id="L246"> <span class="tok-kw">var</span> h = Md5.init(.{});</span> <span class="line" id="L247"> <span class="tok-kw">var</span> out: [<span class="tok-number">16</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L248"></span> <span class="line" id="L249"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L250"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"d41d8cd98f00b204e9800998ecf8427e"</span>, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L251"></span> <span class="line" id="L252"> h = Md5.init(.{});</span> <span class="line" id="L253"> h.update(<span class="tok-str">"abc"</span>);</span> <span class="line" id="L254"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L255"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"900150983cd24fb0d6963f7d28e17f72"</span>, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L256"></span> <span class="line" id="L257"> h = Md5.init(.{});</span> <span class="line" id="L258"> h.update(<span class="tok-str">"a"</span>);</span> <span class="line" id="L259"> h.update(<span class="tok-str">"b"</span>);</span> <span class="line" id="L260"> h.update(<span class="tok-str">"c"</span>);</span> <span class="line" id="L261"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L262"></span> <span class="line" id="L263"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"900150983cd24fb0d6963f7d28e17f72"</span>, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L264">}</span> <span class="line" id="L265"></span> <span class="line" id="L266"><span class="tok-kw">test</span> <span class="tok-str">"md5 aligned final"</span> {</span> <span class="line" id="L267"> <span class="tok-kw">var</span> block = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} ** Md5.block_length;</span> <span class="line" id="L268"> <span class="tok-kw">var</span> out: [Md5.digest_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L269"></span> <span class="line" id="L270"> <span class="tok-kw">var</span> h = Md5.init(.{});</span> <span class="line" id="L271"> h.update(&block);</span> <span class="line" id="L272"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L273">}</span> <span class="line" id="L274"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/crypto/poly1305.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/poly1305.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"../std.zig"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> utils = std.crypto.utils;</span> <span class="line" id="L3"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L4"><span class="tok-kw">const</span> mulWide = std.math.mulWide;</span> <span class="line" id="L5"></span> <span class="line" id="L6"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Poly1305 = <span class="tok-kw">struct</span> {</span> <span class="line" id="L7"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> block_length: <span class="tok-type">usize</span> = <span class="tok-number">16</span>;</span> <span class="line" id="L8"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> mac_length = <span class="tok-number">16</span>;</span> <span class="line" id="L9"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> key_length = <span class="tok-number">32</span>;</span> <span class="line" id="L10"></span> <span class="line" id="L11"> <span class="tok-comment">// constant multiplier (from the secret key)</span> </span> <span class="line" id="L12"> r: [<span class="tok-number">2</span>]<span class="tok-type">u64</span>,</span> <span class="line" id="L13"> <span class="tok-comment">// accumulated hash</span> </span> <span class="line" id="L14"> h: [<span class="tok-number">3</span>]<span class="tok-type">u64</span> = [_]<span class="tok-type">u64</span>{ <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span> },</span> <span class="line" id="L15"> <span class="tok-comment">// random number added at the end (from the secret key)</span> </span> <span class="line" id="L16"> pad: [<span class="tok-number">2</span>]<span class="tok-type">u64</span>,</span> <span class="line" id="L17"> <span class="tok-comment">// how many bytes are waiting to be processed in a partial block</span> </span> <span class="line" id="L18"> leftover: <span class="tok-type">usize</span> = <span class="tok-number">0</span>,</span> <span class="line" id="L19"> <span class="tok-comment">// partial block buffer</span> </span> <span class="line" id="L20"> buf: [block_length]<span class="tok-type">u8</span> <span class="tok-kw">align</span>(<span class="tok-number">16</span>) = <span class="tok-null">undefined</span>,</span> <span class="line" id="L21"></span> <span class="line" id="L22"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">init</span>(key: <span class="tok-kw">const</span> [key_length]<span class="tok-type">u8</span>) Poly1305 {</span> <span class="line" id="L23"> <span class="tok-kw">return</span> Poly1305{</span> <span class="line" id="L24"> .r = [_]<span class="tok-type">u64</span>{</span> <span class="line" id="L25"> mem.readIntLittle(<span class="tok-type">u64</span>, key[<span class="tok-number">0</span>..<span class="tok-number">8</span>]) & <span class="tok-number">0x0ffffffc0fffffff</span>,</span> <span class="line" id="L26"> mem.readIntLittle(<span class="tok-type">u64</span>, key[<span class="tok-number">8</span>..<span class="tok-number">16</span>]) & <span class="tok-number">0x0ffffffc0ffffffc</span>,</span> <span class="line" id="L27"> },</span> <span class="line" id="L28"> .pad = [_]<span class="tok-type">u64</span>{</span> <span class="line" id="L29"> mem.readIntLittle(<span class="tok-type">u64</span>, key[<span class="tok-number">16</span>..<span class="tok-number">24</span>]),</span> <span class="line" id="L30"> mem.readIntLittle(<span class="tok-type">u64</span>, key[<span class="tok-number">24</span>..<span class="tok-number">32</span>]),</span> <span class="line" id="L31"> },</span> <span class="line" id="L32"> };</span> <span class="line" id="L33"> }</span> <span class="line" id="L34"></span> <span class="line" id="L35"> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">add</span>(a: <span class="tok-type">u64</span>, b: <span class="tok-type">u64</span>, c: <span class="tok-type">u1</span>) <span class="tok-kw">struct</span> { <span class="tok-type">u64</span>, <span class="tok-type">u1</span> } {</span> <span class="line" id="L36"> <span class="tok-kw">const</span> v1 = <span class="tok-builtin">@addWithOverflow</span>(a, b);</span> <span class="line" id="L37"> <span class="tok-kw">const</span> v2 = <span class="tok-builtin">@addWithOverflow</span>(v1[<span class="tok-number">0</span>], c);</span> <span class="line" id="L38"> <span class="tok-kw">return</span> .{ v2[<span class="tok-number">0</span>], v1[<span class="tok-number">1</span>] \| v2[<span class="tok-number">1</span>] };</span> <span class="line" id="L39"> }</span> <span class="line" id="L40"></span> <span class="line" id="L41"> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">sub</span>(a: <span class="tok-type">u64</span>, b: <span class="tok-type">u64</span>, c: <span class="tok-type">u1</span>) <span class="tok-kw">struct</span> { <span class="tok-type">u64</span>, <span class="tok-type">u1</span> } {</span> <span class="line" id="L42"> <span class="tok-kw">const</span> v1 = <span class="tok-builtin">@subWithOverflow</span>(a, b);</span> <span class="line" id="L43"> <span class="tok-kw">const</span> v2 = <span class="tok-builtin">@subWithOverflow</span>(v1[<span class="tok-number">0</span>], c);</span> <span class="line" id="L44"> <span class="tok-kw">return</span> .{ v2[<span class="tok-number">0</span>], v1[<span class="tok-number">1</span>] \| v2[<span class="tok-number">1</span>] };</span> <span class="line" id="L45"> }</span> <span class="line" id="L46"></span> <span class="line" id="L47"> <span class="tok-kw">fn</span> <span class="tok-fn">blocks</span>(st: Poly1305, m: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, <span class="tok-kw">comptime</span> last: <span class="tok-type">bool</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L48"> <span class="tok-kw">const</span> hibit: <span class="tok-type">u64</span> = <span class="tok-kw">if</span> (last) <span class="tok-number">0</span> <span class="tok-kw">else</span> <span class="tok-number">1</span>;</span> <span class="line" id="L49"> <span class="tok-kw">const</span> r0 = st.r[<span class="tok-number">0</span>];</span> <span class="line" id="L50"> <span class="tok-kw">const</span> r1 = st.r[<span class="tok-number">1</span>];</span> <span class="line" id="L51"></span> <span class="line" id="L52"> <span class="tok-kw">var</span> h0 = st.h[<span class="tok-number">0</span>];</span> <span class="line" id="L53"> <span class="tok-kw">var</span> h1 = st.h[<span class="tok-number">1</span>];</span> <span class="line" id="L54"> <span class="tok-kw">var</span> h2 = st.h[<span class="tok-number">2</span>];</span> <span class="line" id="L55"></span> <span class="line" id="L56"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L57"></span> <span class="line" id="L58"> <span class="tok-kw">while</span> (i + block_length <= m.len) : (i += block_length) {</span> <span class="line" id="L59"> <span class="tok-kw">const</span> in0 = mem.readIntLittle(<span class="tok-type">u64</span>, m[i..][<span class="tok-number">0</span>..<span class="tok-number">8</span>]);</span> <span class="line" id="L60"> <span class="tok-kw">const</span> in1 = mem.readIntLittle(<span class="tok-type">u64</span>, m[i + <span class="tok-number">8</span> ..][<span class="tok-number">0</span>..<span class="tok-number">8</span>]);</span> <span class="line" id="L61"></span> <span class="line" id="L62"> <span class="tok-comment">// Add the input message to H</span> </span> <span class="line" id="L63"> <span class="tok-kw">var</span> v = <span class="tok-builtin">@addWithOverflow</span>(h0, in0);</span> <span class="line" id="L64"> h0 = v[<span class="tok-number">0</span>];</span> <span class="line" id="L65"> v = add(h1, in1, v[<span class="tok-number">1</span>]);</span> <span class="line" id="L66"> h1 = v[<span class="tok-number">0</span>];</span> <span class="line" id="L67"> h2 +%= v[<span class="tok-number">1</span>] +% hibit;</span> <span class="line" id="L68"></span> <span class="line" id="L69"> <span class="tok-comment">// Compute H * R</span> </span> <span class="line" id="L70"> <span class="tok-kw">const</span> m0 = mulWide(<span class="tok-type">u64</span>, h0, r0);</span> <span class="line" id="L71"> <span class="tok-kw">const</span> h1r0 = mulWide(<span class="tok-type">u64</span>, h1, r0);</span> <span class="line" id="L72"> <span class="tok-kw">const</span> h0r1 = mulWide(<span class="tok-type">u64</span>, h0, r1);</span> <span class="line" id="L73"> <span class="tok-kw">const</span> h2r0 = mulWide(<span class="tok-type">u64</span>, h2, r0);</span> <span class="line" id="L74"> <span class="tok-kw">const</span> h1r1 = mulWide(<span class="tok-type">u64</span>, h1, r1);</span> <span class="line" id="L75"> <span class="tok-kw">const</span> m3 = mulWide(<span class="tok-type">u64</span>, h2, r1);</span> <span class="line" id="L76"> <span class="tok-kw">const</span> m1 = h1r0 +% h0r1;</span> <span class="line" id="L77"> <span class="tok-kw">const</span> m2 = h2r0 +% h1r1;</span> <span class="line" id="L78"></span> <span class="line" id="L79"> <span class="tok-kw">const</span> t0 = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(m0));</span> <span class="line" id="L80"> v = <span class="tok-builtin">@addWithOverflow</span>(<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(m1)), <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(m0 >> <span class="tok-number">64</span>)));</span> <span class="line" id="L81"> <span class="tok-kw">const</span> t1 = v[<span class="tok-number">0</span>];</span> <span class="line" id="L82"> v = add(<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(m2)), <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(m1 >> <span class="tok-number">64</span>)), v[<span class="tok-number">1</span>]);</span> <span class="line" id="L83"> <span class="tok-kw">const</span> t2 = v[<span class="tok-number">0</span>];</span> <span class="line" id="L84"> v = add(<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(m3)), <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(m2 >> <span class="tok-number">64</span>)), v[<span class="tok-number">1</span>]);</span> <span class="line" id="L85"> <span class="tok-kw">const</span> t3 = v[<span class="tok-number">0</span>];</span> <span class="line" id="L86"></span> <span class="line" id="L87"> <span class="tok-comment">// Partial reduction</span> </span> <span class="line" id="L88"> h0 = t0;</span> <span class="line" id="L89"> h1 = t1;</span> <span class="line" id="L90"> h2 = t2 & <span class="tok-number">3</span>;</span> <span class="line" id="L91"></span> <span class="line" id="L92"> <span class="tok-comment">// Add c(4+1)</span> </span> <span class="line" id="L93"> <span class="tok-kw">var</span> cclo = t2 & ~<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">3</span>);</span> <span class="line" id="L94"> <span class="tok-kw">var</span> cchi = t3;</span> <span class="line" id="L95"> v = <span class="tok-builtin">@addWithOverflow</span>(h0, cclo);</span> <span class="line" id="L96"> h0 = v[<span class="tok-number">0</span>];</span> <span class="line" id="L97"> v = add(h1, cchi, v[<span class="tok-number">1</span>]);</span> <span class="line" id="L98"> h1 = v[<span class="tok-number">0</span>];</span> <span class="line" id="L99"> h2 +%= v[<span class="tok-number">1</span>];</span> <span class="line" id="L100"> <span class="tok-kw">const</span> cc = (cclo \| (<span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, cchi) << <span class="tok-number">64</span>)) >> <span class="tok-number">2</span>;</span> <span class="line" id="L101"> v = <span class="tok-builtin">@addWithOverflow</span>(h0, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(cc)));</span> <span class="line" id="L102"> h0 = v[<span class="tok-number">0</span>];</span> <span class="line" id="L103"> v = add(h1, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(cc >> <span class="tok-number">64</span>)), v[<span class="tok-number">1</span>]);</span> <span class="line" id="L104"> h1 = v[<span class="tok-number">0</span>];</span> <span class="line" id="L105"> h2 +%= v[<span class="tok-number">1</span>];</span> <span class="line" id="L106"> }</span> <span class="line" id="L107"> st.h = [_]<span class="tok-type">u64</span>{ h0, h1, h2 };</span> <span class="line" id="L108"> }</span> <span class="line" id="L109"></span> <span class="line" id="L110"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">update</span>(st: Poly1305, m: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L111"> <span class="tok-kw">var</span> mb = m;</span> <span class="line" id="L112"></span> <span class="line" id="L113"> <span class="tok-comment">// handle leftover</span> </span> <span class="line" id="L114"> <span class="tok-kw">if</span> (st.leftover > <span class="tok-number">0</span>) {</span> <span class="line" id="L115"> <span class="tok-kw">const</span> want = <span class="tok-builtin">@min</span>(block_length - st.leftover, mb.len);</span> <span class="line" id="L116"> <span class="tok-kw">const</span> mc = mb[<span class="tok-number">0</span>..want];</span> <span class="line" id="L117"> <span class="tok-kw">for</span> (mc, <span class="tok-number">0</span>..) \|x, i\| {</span> <span class="line" id="L118"> st.buf[st.leftover + i] = x;</span> <span class="line" id="L119"> }</span> <span class="line" id="L120"> mb = mb[want..];</span> <span class="line" id="L121"> st.leftover += want;</span> <span class="line" id="L122"> <span class="tok-kw">if</span> (st.leftover < block_length) {</span> <span class="line" id="L123"> <span class="tok-kw">return</span>;</span> <span class="line" id="L124"> }</span> <span class="line" id="L125"> st.blocks(&st.buf, <span class="tok-null">false</span>);</span> <span class="line" id="L126"> st.leftover = <span class="tok-number">0</span>;</span> <span class="line" id="L127"> }</span> <span class="line" id="L128"></span> <span class="line" id="L129"> <span class="tok-comment">// process full blocks</span> </span> <span class="line" id="L130"> <span class="tok-kw">if</span> (mb.len >= block_length) {</span> <span class="line" id="L131"> <span class="tok-kw">const</span> want = mb.len & ~(block_length - <span class="tok-number">1</span>);</span> <span class="line" id="L132"> st.blocks(mb[<span class="tok-number">0</span>..want], <span class="tok-null">false</span>);</span> <span class="line" id="L133"> mb = mb[want..];</span> <span class="line" id="L134"> }</span> <span class="line" id="L135"></span> <span class="line" id="L136"> <span class="tok-comment">// store leftover</span> </span> <span class="line" id="L137"> <span class="tok-kw">if</span> (mb.len > <span class="tok-number">0</span>) {</span> <span class="line" id="L138"> <span class="tok-kw">for</span> (mb, <span class="tok-number">0</span>..) \|x, i\| {</span> <span class="line" id="L139"> st.buf[st.leftover + i] = x;</span> <span class="line" id="L140"> }</span> <span class="line" id="L141"> st.leftover += mb.len;</span> <span class="line" id="L142"> }</span> <span class="line" id="L143"> }</span> <span class="line" id="L144"></span> <span class="line" id="L145"> <span class="tok-comment">/// Zero-pad to align the next input to the first byte of a block</span></span> <span class="line" id="L146"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">pad</span>(st: Poly1305) <span class="tok-type">void</span> {</span> <span class="line" id="L147"> <span class="tok-kw">if</span> (st.leftover == <span class="tok-number">0</span>) {</span> <span class="line" id="L148"> <span class="tok-kw">return</span>;</span> <span class="line" id="L149"> }</span> <span class="line" id="L150"> <span class="tok-builtin">@memset</span>(st.buf[st.leftover..], <span class="tok-number">0</span>);</span> <span class="line" id="L151"> st.blocks(&st.buf);</span> <span class="line" id="L152"> st.leftover = <span class="tok-number">0</span>;</span> <span class="line" id="L153"> }</span> <span class="line" id="L154"></span> <span class="line" id="L155"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">final</span>(st: Poly1305, out: [mac_length]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L156"> <span class="tok-kw">if</span> (st.leftover > <span class="tok-number">0</span>) {</span> <span class="line" id="L157"> <span class="tok-kw">var</span> i = st.leftover;</span> <span class="line" id="L158"> st.buf[i] = <span class="tok-number">1</span>;</span> <span class="line" id="L159"> i += <span class="tok-number">1</span>;</span> <span class="line" id="L160"> <span class="tok-builtin">@memset</span>(st.buf[i..], <span class="tok-number">0</span>);</span> <span class="line" id="L161"> st.blocks(&st.buf, <span class="tok-null">true</span>);</span> <span class="line" id="L162"> }</span> <span class="line" id="L163"></span> <span class="line" id="L164"> <span class="tok-kw">var</span> h0 = st.h[<span class="tok-number">0</span>];</span> <span class="line" id="L165"> <span class="tok-kw">var</span> h1 = st.h[<span class="tok-number">1</span>];</span> <span class="line" id="L166"> <span class="tok-kw">var</span> h2 = st.h[<span class="tok-number">2</span>];</span> <span class="line" id="L167"></span> <span class="line" id="L168"> <span class="tok-comment">// H - (2^130 - 5)</span> </span> <span class="line" id="L169"> <span class="tok-kw">var</span> v = <span class="tok-builtin">@subWithOverflow</span>(h0, <span class="tok-number">0xfffffffffffffffb</span>);</span> <span class="line" id="L170"> <span class="tok-kw">const</span> h_p0 = v[<span class="tok-number">0</span>];</span> <span class="line" id="L171"> v = sub(h1, <span class="tok-number">0xffffffffffffffff</span>, v[<span class="tok-number">1</span>]);</span> <span class="line" id="L172"> <span class="tok-kw">const</span> h_p1 = v[<span class="tok-number">0</span>];</span> <span class="line" id="L173"> v = sub(h2, <span class="tok-number">0x0000000000000003</span>, v[<span class="tok-number">1</span>]);</span> <span class="line" id="L174"></span> <span class="line" id="L175"> <span class="tok-comment">// Final reduction, subtract 2^130-5 from H if H >= 2^130-5</span> </span> <span class="line" id="L176"> <span class="tok-kw">const</span> mask = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, v[<span class="tok-number">1</span>]) -% <span class="tok-number">1</span>;</span> <span class="line" id="L177"> h0 ^= mask & (h0 ^ h_p0);</span> <span class="line" id="L178"> h1 ^= mask & (h1 ^ h_p1);</span> <span class="line" id="L179"></span> <span class="line" id="L180"> <span class="tok-comment">// Add the first half of the key, we intentionally don't use @addWithOverflow() here.</span> </span> <span class="line" id="L181"> st.h[<span class="tok-number">0</span>] = h0 +% st.pad[<span class="tok-number">0</span>];</span> <span class="line" id="L182"> <span class="tok-kw">const</span> c = ((h0 & st.pad[<span class="tok-number">0</span>]) \| ((h0 \| st.pad[<span class="tok-number">0</span>]) & ~st.h[<span class="tok-number">0</span>])) >> <span class="tok-number">63</span>;</span> <span class="line" id="L183"> st.h[<span class="tok-number">1</span>] = h1 +% st.pad[<span class="tok-number">1</span>] +% c;</span> <span class="line" id="L184"></span> <span class="line" id="L185"> mem.writeIntLittle(<span class="tok-type">u64</span>, out[<span class="tok-number">0</span>..<span class="tok-number">8</span>], st.h[<span class="tok-number">0</span>]);</span> <span class="line" id="L186"> mem.writeIntLittle(<span class="tok-type">u64</span>, out[<span class="tok-number">8</span>..<span class="tok-number">16</span>], st.h[<span class="tok-number">1</span>]);</span> <span class="line" id="L187"></span> <span class="line" id="L188"> utils.secureZero(<span class="tok-type">u8</span>, <span class="tok-builtin">@as</span>([]<span class="tok-type">u8</span>, <span class="tok-builtin">@ptrCast</span>(st))[<span class="tok-number">0</span>..<span class="tok-builtin">@sizeOf</span>(Poly1305)]);</span> <span class="line" id="L189"> }</span> <span class="line" id="L190"></span> <span class="line" id="L191"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">create</span>(out: [mac_length]<span class="tok-type">u8</span>, msg: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, key: <span class="tok-kw">const</span> [key_length]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L192"> <span class="tok-kw">var</span> st = Poly1305.init(key);</span> <span class="line" id="L193"> st.update(msg);</span> <span class="line" id="L194"> st.final(out);</span> <span class="line" id="L195"> }</span> <span class="line" id="L196">};</span> <span class="line" id="L197"></span> <span class="line" id="L198"><span class="tok-kw">test</span> <span class="tok-str">"poly1305 rfc7439 vector1"</span> {</span> <span class="line" id="L199"> <span class="tok-kw">const</span> expected_mac = <span class="tok-str">"\xa8\x06\x1d\xc1\x30\x51\x36\xc6\xc2\x2b\x8b\xaf\x0c\x01\x27\xa9"</span>;</span> <span class="line" id="L200"></span> <span class="line" id="L201"> <span class="tok-kw">const</span> msg = <span class="tok-str">"Cryptographic Forum Research Group"</span>;</span> <span class="line" id="L202"> <span class="tok-kw">const</span> key = <span class="tok-str">"\x85\xd6\xbe\x78\x57\x55\x6d\x33\x7f\x44\x52\xfe\x42\xd5\x06\xa8"</span> ++</span> <span class="line" id="L203"> <span class="tok-str">"\x01\x03\x80\x8a\xfb\x0d\xb2\xfd\x4a\xbf\xf6\xaf\x41\x49\xf5\x1b"</span>;</span> <span class="line" id="L204"></span> <span class="line" id="L205"> <span class="tok-kw">var</span> mac: [<span class="tok-number">16</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L206"> Poly1305.create(mac[<span class="tok-number">0</span>..], msg, key);</span> <span class="line" id="L207"></span> <span class="line" id="L208"> <span class="tok-kw">try</span> std.testing.expectEqualSlices(<span class="tok-type">u8</span>, expected_mac, &mac);</span> <span class="line" id="L209">}</span> <span class="line" id="L210"></span> <span class="line" id="L211"><span class="tok-kw">test</span> <span class="tok-str">"poly1305 requiring a final reduction"</span> {</span> <span class="line" id="L212"> <span class="tok-kw">const</span> expected_mac = [_]<span class="tok-type">u8</span>{ <span class="tok-number">25</span>, <span class="tok-number">13</span>, <span class="tok-number">249</span>, <span class="tok-number">42</span>, <span class="tok-number">164</span>, <span class="tok-number">57</span>, <span class="tok-number">99</span>, <span class="tok-number">60</span>, <span class="tok-number">149</span>, <span class="tok-number">181</span>, <span class="tok-number">74</span>, <span class="tok-number">74</span>, <span class="tok-number">13</span>, <span class="tok-number">63</span>, <span class="tok-number">121</span>, <span class="tok-number">6</span> };</span> <span class="line" id="L213"> <span class="tok-kw">const</span> msg = [_]<span class="tok-type">u8</span>{ <span class="tok-number">253</span>, <span class="tok-number">193</span>, <span class="tok-number">249</span>, <span class="tok-number">146</span>, <span class="tok-number">70</span>, <span class="tok-number">6</span>, <span class="tok-number">214</span>, <span class="tok-number">226</span>, <span class="tok-number">131</span>, <span class="tok-number">213</span>, <span class="tok-number">241</span>, <span class="tok-number">116</span>, <span class="tok-number">20</span>, <span class="tok-number">24</span>, <span class="tok-number">210</span>, <span class="tok-number">224</span>, <span class="tok-number">65</span>, <span class="tok-number">151</span>, <span class="tok-number">255</span>, <span class="tok-number">104</span>, <span class="tok-number">133</span> };</span> <span class="line" id="L214"> <span class="tok-kw">const</span> key = [_]<span class="tok-type">u8</span>{ <span class="tok-number">190</span>, <span class="tok-number">63</span>, <span class="tok-number">95</span>, <span class="tok-number">57</span>, <span class="tok-number">155</span>, <span class="tok-number">103</span>, <span class="tok-number">77</span>, <span class="tok-number">170</span>, <span class="tok-number">7</span>, <span class="tok-number">98</span>, <span class="tok-number">106</span>, <span class="tok-number">44</span>, <span class="tok-number">117</span>, <span class="tok-number">186</span>, <span class="tok-number">90</span>, <span class="tok-number">185</span>, <span class="tok-number">109</span>, <span class="tok-number">118</span>, <span class="tok-number">184</span>, <span class="tok-number">24</span>, <span class="tok-number">69</span>, <span class="tok-number">41</span>, <span class="tok-number">166</span>, <span class="tok-number">243</span>, <span class="tok-number">119</span>, <span class="tok-number">132</span>, <span class="tok-number">151</span>, <span class="tok-number">61</span>, <span class="tok-number">52</span>, <span class="tok-number">43</span>, <span class="tok-number">64</span>, <span class="tok-number">250</span> };</span> <span class="line" id="L215"> <span class="tok-kw">var</span> mac: [<span class="tok-number">16</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L216"> Poly1305.create(mac[<span class="tok-number">0</span>..], &msg, &key);</span> <span class="line" id="L217"> <span class="tok-kw">try</span> std.testing.expectEqualSlices(<span class="tok-type">u8</span>, &expected_mac, &mac);</span> <span class="line" id="L218">}</span> <span class="line" id="L219"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/crypto/tlcsprng.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/tlcsprng.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-comment">//! Thread-local cryptographically secure pseudo-random number generator.</span></span> <span class="line" id="L2"><span class="tok-comment">//! This file has public declarations that are intended to be used internally</span></span> <span class="line" id="L3"><span class="tok-comment">//! by the standard library; this namespace is not intended to be exposed</span></span> <span class="line" id="L4"><span class="tok-comment">//! directly to standard library users.</span></span> <span class="line" id="L5"></span> <span class="line" id="L6"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L7"><span class="tok-kw">const</span> builtin = <span class="tok-builtin">@import</span>(<span class="tok-str">"builtin"</span>);</span> <span class="line" id="L8"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L9"><span class="tok-kw">const</span> os = std.os;</span> <span class="line" id="L10"></span> <span class="line" id="L11"><span class="tok-comment">/// We use this as a layer of indirection because global const pointers cannot</span></span> <span class="line" id="L12"><span class="tok-comment">/// point to thread-local variables.</span></span> <span class="line" id="L13"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> interface = std.rand.Random{</span> <span class="line" id="L14"> .ptr = <span class="tok-null">undefined</span>,</span> <span class="line" id="L15"> .fillFn = tlsCsprngFill,</span> <span class="line" id="L16">};</span> <span class="line" id="L17"></span> <span class="line" id="L18"><span class="tok-kw">const</span> os_has_fork = <span class="tok-kw">switch</span> (builtin.os.tag) {</span> <span class="line" id="L19"> .dragonfly,</span> <span class="line" id="L20"> .freebsd,</span> <span class="line" id="L21"> .ios,</span> <span class="line" id="L22"> .kfreebsd,</span> <span class="line" id="L23"> .linux,</span> <span class="line" id="L24"> .macos,</span> <span class="line" id="L25"> .netbsd,</span> <span class="line" id="L26"> .openbsd,</span> <span class="line" id="L27"> .solaris,</span> <span class="line" id="L28"> .tvos,</span> <span class="line" id="L29"> .watchos,</span> <span class="line" id="L30"> .haiku,</span> <span class="line" id="L31"> => <span class="tok-null">true</span>,</span> <span class="line" id="L32"></span> <span class="line" id="L33"> <span class="tok-kw">else</span> => <span class="tok-null">false</span>,</span> <span class="line" id="L34">};</span> <span class="line" id="L35"><span class="tok-kw">const</span> os_has_arc4random = builtin.link_libc <span class="tok-kw">and</span> <span class="tok-builtin">@hasDecl</span>(std.c, <span class="tok-str">"arc4random_buf"</span>);</span> <span class="line" id="L36"><span class="tok-kw">const</span> want_fork_safety = os_has_fork <span class="tok-kw">and</span> !os_has_arc4random <span class="tok-kw">and</span></span> <span class="line" id="L37"> (std.meta.globalOption(<span class="tok-str">"crypto_fork_safety"</span>, <span class="tok-type">bool</span>) <span class="tok-kw">orelse</span> <span class="tok-null">true</span>);</span> <span class="line" id="L38"><span class="tok-kw">const</span> maybe_have_wipe_on_fork = builtin.os.isAtLeast(.linux, .{</span> <span class="line" id="L39"> .major = <span class="tok-number">4</span>,</span> <span class="line" id="L40"> .minor = <span class="tok-number">14</span>,</span> <span class="line" id="L41"> .patch = <span class="tok-number">0</span>,</span> <span class="line" id="L42">}) <span class="tok-kw">orelse</span> <span class="tok-null">true</span>;</span> <span class="line" id="L43"><span class="tok-kw">const</span> is_haiku = builtin.os.tag == .haiku;</span> <span class="line" id="L44"></span> <span class="line" id="L45"><span class="tok-kw">const</span> Rng = std.rand.DefaultCsprng;</span> <span class="line" id="L46"></span> <span class="line" id="L47"><span class="tok-kw">const</span> Context = <span class="tok-kw">struct</span> {</span> <span class="line" id="L48"> init_state: <span class="tok-kw">enum</span>(<span class="tok-type">u8</span>) { uninitialized = <span class="tok-number">0</span>, initialized, failed },</span> <span class="line" id="L49"> rng: Rng,</span> <span class="line" id="L50">};</span> <span class="line" id="L51"></span> <span class="line" id="L52"><span class="tok-kw">var</span> install_atfork_handler = std.once(<span class="tok-kw">struct</span> {</span> <span class="line" id="L53"> <span class="tok-comment">// Install the global handler only once.</span> </span> <span class="line" id="L54"> <span class="tok-comment">// The same handler is shared among threads and is inherinted by fork()-ed</span> </span> <span class="line" id="L55"> <span class="tok-comment">// processes.</span> </span> <span class="line" id="L56"> <span class="tok-kw">fn</span> <span class="tok-fn">do</span>() <span class="tok-type">void</span> {</span> <span class="line" id="L57"> <span class="tok-kw">const</span> r = std.c.pthread_atfork(<span class="tok-null">null</span>, <span class="tok-null">null</span>, childAtForkHandler);</span> <span class="line" id="L58"> std.debug.assert(r == <span class="tok-number">0</span>);</span> <span class="line" id="L59"> }</span> <span class="line" id="L60">}.do);</span> <span class="line" id="L61"></span> <span class="line" id="L62"><span class="tok-kw">threadlocal</span> <span class="tok-kw">var</span> wipe_mem: []<span class="tok-kw">align</span>(mem.page_size) <span class="tok-type">u8</span> = &[_]<span class="tok-type">u8</span>{};</span> <span class="line" id="L63"></span> <span class="line" id="L64"><span class="tok-kw">fn</span> <span class="tok-fn">tlsCsprngFill</span>(_: <span class="tok-type">anyopaque</span>, buffer: []<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L65"> <span class="tok-kw">if</span> (builtin.link_libc <span class="tok-kw">and</span> <span class="tok-builtin">@hasDecl</span>(std.c, <span class="tok-str">"arc4random_buf"</span>)) {</span> <span class="line" id="L66"> <span class="tok-comment">// arc4random is already a thread-local CSPRNG.</span> </span> <span class="line" id="L67"> <span class="tok-kw">return</span> std.c.arc4random_buf(buffer.ptr, buffer.len);</span> <span class="line" id="L68"> }</span> <span class="line" id="L69"> <span class="tok-comment">// Allow applications to decide they would prefer to have every call to</span> </span> <span class="line" id="L70"> <span class="tok-comment">// std.crypto.random always make an OS syscall, rather than rely on an</span> </span> <span class="line" id="L71"> <span class="tok-comment">// application implementation of a CSPRNG.</span> </span> <span class="line" id="L72"> <span class="tok-kw">if</span> (std.options.crypto_always_getrandom) {</span> <span class="line" id="L73"> <span class="tok-kw">return</span> defaultRandomSeed(buffer);</span> <span class="line" id="L74"> }</span> <span class="line" id="L75"></span> <span class="line" id="L76"> <span class="tok-kw">if</span> (wipe_mem.len == <span class="tok-number">0</span>) {</span> <span class="line" id="L77"> <span class="tok-comment">// Not initialized yet.</span> </span> <span class="line" id="L78"> <span class="tok-kw">if</span> (want_fork_safety <span class="tok-kw">and</span> maybe_have_wipe_on_fork <span class="tok-kw">or</span> is_haiku) {</span> <span class="line" id="L79"> <span class="tok-comment">// Allocate a per-process page, madvise operates with page</span> </span> <span class="line" id="L80"> <span class="tok-comment">// granularity.</span> </span> <span class="line" id="L81"> wipe_mem = os.mmap(</span> <span class="line" id="L82"> <span class="tok-null">null</span>,</span> <span class="line" id="L83"> <span class="tok-builtin">@sizeOf</span>(Context),</span> <span class="line" id="L84"> os.PROT.READ \| os.PROT.WRITE,</span> <span class="line" id="L85"> os.MAP.PRIVATE \| os.MAP.ANONYMOUS,</span> <span class="line" id="L86"> -<span class="tok-number">1</span>,</span> <span class="line" id="L87"> <span class="tok-number">0</span>,</span> <span class="line" id="L88"> ) <span class="tok-kw">catch</span> {</span> <span class="line" id="L89"> <span class="tok-comment">// Could not allocate memory for the local state, fall back to</span> </span> <span class="line" id="L90"> <span class="tok-comment">// the OS syscall.</span> </span> <span class="line" id="L91"> <span class="tok-kw">return</span> std.options.cryptoRandomSeed(buffer);</span> <span class="line" id="L92"> };</span> <span class="line" id="L93"> <span class="tok-comment">// The memory is already zero-initialized.</span> </span> <span class="line" id="L94"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L95"> <span class="tok-comment">// Use a static thread-local buffer.</span> </span> <span class="line" id="L96"> <span class="tok-kw">const</span> S = <span class="tok-kw">struct</span> {</span> <span class="line" id="L97"> <span class="tok-kw">threadlocal</span> <span class="tok-kw">var</span> buf: Context <span class="tok-kw">align</span>(mem.page_size) = .{</span> <span class="line" id="L98"> .init_state = .uninitialized,</span> <span class="line" id="L99"> .rng = <span class="tok-null">undefined</span>,</span> <span class="line" id="L100"> };</span> <span class="line" id="L101"> };</span> <span class="line" id="L102"> wipe_mem = mem.asBytes(&S.buf);</span> <span class="line" id="L103"> }</span> <span class="line" id="L104"> }</span> <span class="line" id="L105"> <span class="tok-kw">const</span> ctx = <span class="tok-builtin">@as</span>(Context, <span class="tok-builtin">@ptrCast</span>(wipe_mem.ptr));</span> <span class="line" id="L106"></span> <span class="line" id="L107"> <span class="tok-kw">switch</span> (ctx.init_state) {</span> <span class="line" id="L108"> .uninitialized => {</span> <span class="line" id="L109"> <span class="tok-kw">if</span> (!want_fork_safety) {</span> <span class="line" id="L110"> <span class="tok-kw">return</span> initAndFill(buffer);</span> <span class="line" id="L111"> }</span> <span class="line" id="L112"></span> <span class="line" id="L113"> <span class="tok-kw">if</span> (maybe_have_wipe_on_fork) wof: {</span> <span class="line" id="L114"> <span class="tok-comment">// Qemu user-mode emulation ignores any valid/invalid madvise</span> </span> <span class="line" id="L115"> <span class="tok-comment">// hint and returns success. Check if this is the case by</span> </span> <span class="line" id="L116"> <span class="tok-comment">// passing bogus parameters, we expect EINVAL as result.</span> </span> <span class="line" id="L117"> <span class="tok-kw">if</span> (os.madvise(wipe_mem.ptr, <span class="tok-number">0</span>, <span class="tok-number">0xffffffff</span>)) \|_\| {</span> <span class="line" id="L118"> <span class="tok-kw">break</span> :wof;</span> <span class="line" id="L119"> } <span class="tok-kw">else</span> \|_\| {}</span> <span class="line" id="L120"></span> <span class="line" id="L121"> <span class="tok-kw">if</span> (os.madvise(wipe_mem.ptr, wipe_mem.len, os.MADV.WIPEONFORK)) \|_\| {</span> <span class="line" id="L122"> <span class="tok-kw">return</span> initAndFill(buffer);</span> <span class="line" id="L123"> } <span class="tok-kw">else</span> \|_\| {}</span> <span class="line" id="L124"> }</span> <span class="line" id="L125"></span> <span class="line" id="L126"> <span class="tok-kw">if</span> (std.Thread.use_pthreads) {</span> <span class="line" id="L127"> <span class="tok-kw">return</span> setupPthreadAtforkAndFill(buffer);</span> <span class="line" id="L128"> }</span> <span class="line" id="L129"></span> <span class="line" id="L130"> <span class="tok-comment">// Since we failed to set up fork safety, we fall back to always</span> </span> <span class="line" id="L131"> <span class="tok-comment">// calling getrandom every time.</span> </span> <span class="line" id="L132"> ctx.init_state = .failed;</span> <span class="line" id="L133"> <span class="tok-kw">return</span> std.options.cryptoRandomSeed(buffer);</span> <span class="line" id="L134"> },</span> <span class="line" id="L135"> .initialized => {</span> <span class="line" id="L136"> <span class="tok-kw">return</span> fillWithCsprng(buffer);</span> <span class="line" id="L137"> },</span> <span class="line" id="L138"> .failed => {</span> <span class="line" id="L139"> <span class="tok-kw">if</span> (want_fork_safety) {</span> <span class="line" id="L140"> <span class="tok-kw">return</span> std.options.cryptoRandomSeed(buffer);</span> <span class="line" id="L141"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L142"> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L143"> }</span> <span class="line" id="L144"> },</span> <span class="line" id="L145"> }</span> <span class="line" id="L146">}</span> <span class="line" id="L147"></span> <span class="line" id="L148"><span class="tok-kw">fn</span> <span class="tok-fn">setupPthreadAtforkAndFill</span>(buffer: []<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L149"> install_atfork_handler.call();</span> <span class="line" id="L150"> <span class="tok-kw">return</span> initAndFill(buffer);</span> <span class="line" id="L151">}</span> <span class="line" id="L152"></span> <span class="line" id="L153"><span class="tok-kw">fn</span> <span class="tok-fn">childAtForkHandler</span>() <span class="tok-kw">callconv</span>(.C) <span class="tok-type">void</span> {</span> <span class="line" id="L154"> <span class="tok-comment">// The atfork handler is global, this function may be called after</span> </span> <span class="line" id="L155"> <span class="tok-comment">// fork()-ing threads that never initialized the CSPRNG context.</span> </span> <span class="line" id="L156"> <span class="tok-kw">if</span> (wipe_mem.len == <span class="tok-number">0</span>) <span class="tok-kw">return</span>;</span> <span class="line" id="L157"> std.crypto.utils.secureZero(<span class="tok-type">u8</span>, wipe_mem);</span> <span class="line" id="L158">}</span> <span class="line" id="L159"></span> <span class="line" id="L160"><span class="tok-kw">fn</span> <span class="tok-fn">fillWithCsprng</span>(buffer: []<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L161"> <span class="tok-kw">const</span> ctx = <span class="tok-builtin">@as</span>(Context, <span class="tok-builtin">@ptrCast</span>(wipe_mem.ptr));</span> <span class="line" id="L162"> <span class="tok-kw">return</span> ctx.rng.fill(buffer);</span> <span class="line" id="L163">}</span> <span class="line" id="L164"></span> <span class="line" id="L165"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">defaultRandomSeed</span>(buffer: []<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L166"> os.getrandom(buffer) <span class="tok-kw">catch</span> <span class="tok-builtin">@panic</span>(<span class="tok-str">"getrandom() failed to provide entropy"</span>);</span> <span class="line" id="L167">}</span> <span class="line" id="L168"></span> <span class="line" id="L169"><span class="tok-kw">fn</span> <span class="tok-fn">initAndFill</span>(buffer: []<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L170"> <span class="tok-kw">var</span> seed: [Rng.secret_seed_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L171"> <span class="tok-comment">// Because we panic on getrandom() failing, we provide the opportunity</span> </span> <span class="line" id="L172"> <span class="tok-comment">// to override the default seed function. This also makes</span> </span> <span class="line" id="L173"> <span class="tok-comment">// `std.crypto.random` available on freestanding targets, provided that</span> </span> <span class="line" id="L174"> <span class="tok-comment">// the `std.options.cryptoRandomSeed` function is provided.</span> </span> <span class="line" id="L175"> std.options.cryptoRandomSeed(&seed);</span> <span class="line" id="L176"></span> <span class="line" id="L177"> <span class="tok-kw">const</span> ctx = <span class="tok-builtin">@as</span>(Context, <span class="tok-builtin">@ptrCast</span>(wipe_mem.ptr));</span> <span class="line" id="L178"> ctx.rng = Rng.init(seed);</span> <span class="line" id="L179"> std.crypto.utils.secureZero(<span class="tok-type">u8</span>, &seed);</span> <span class="line" id="L180"></span> <span class="line" id="L181"> <span class="tok-comment">// This is at the end so that accidental recursive dependencies result</span> </span> <span class="line" id="L182"> <span class="tok-comment">// in stack overflows instead of invalid random data.</span> </span> <span class="line" id="L183"> ctx.init_state = .initialized;</span> <span class="line" id="L184"></span> <span class="line" id="L185"> <span class="tok-kw">return</span> fillWithCsprng(buffer);</span> <span class="line" id="L186">}</span> <span class="line" id="L187"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/crypto/utils.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/utils.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"../std.zig"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> debug = std.debug;</span> <span class="line" id="L3"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L4"><span class="tok-kw">const</span> random = std.crypto.random;</span> <span class="line" id="L5"><span class="tok-kw">const</span> testing = std.testing;</span> <span class="line" id="L6"></span> <span class="line" id="L7"><span class="tok-kw">const</span> Endian = std.builtin.Endian;</span> <span class="line" id="L8"><span class="tok-kw">const</span> Order = std.math.Order;</span> <span class="line" id="L9"></span> <span class="line" id="L10"><span class="tok-comment">/// Compares two arrays in constant time (for a given length) and returns whether they are equal.</span></span> <span class="line" id="L11"><span class="tok-comment">/// This function was designed to compare short cryptographic secrets (MACs, signatures).</span></span> <span class="line" id="L12"><span class="tok-comment">/// For all other applications, use mem.eql() instead.</span></span> <span class="line" id="L13"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">timingSafeEql</span>(<span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>, a: T, b: T) <span class="tok-type">bool</span> {</span> <span class="line" id="L14"> <span class="tok-kw">switch</span> (<span class="tok-builtin">@typeInfo</span>(T)) {</span> <span class="line" id="L15"> .Array => \|info\| {</span> <span class="line" id="L16"> <span class="tok-kw">const</span> C = info.child;</span> <span class="line" id="L17"> <span class="tok-kw">if</span> (<span class="tok-builtin">@typeInfo</span>(C) != .Int) {</span> <span class="line" id="L18"> <span class="tok-builtin">@compileError</span>(<span class="tok-str">"Elements to be compared must be integers"</span>);</span> <span class="line" id="L19"> }</span> <span class="line" id="L20"> <span class="tok-kw">var</span> acc = <span class="tok-builtin">@as</span>(C, <span class="tok-number">0</span>);</span> <span class="line" id="L21"> <span class="tok-kw">for</span> (a, <span class="tok-number">0</span>..) \|x, i\| {</span> <span class="line" id="L22"> acc \|= x ^ b[i];</span> <span class="line" id="L23"> }</span> <span class="line" id="L24"> <span class="tok-kw">const</span> s = <span class="tok-builtin">@typeInfo</span>(C).Int.bits;</span> <span class="line" id="L25"> <span class="tok-kw">const</span> Cu = std.meta.Int(.unsigned, s);</span> <span class="line" id="L26"> <span class="tok-kw">const</span> Cext = std.meta.Int(.unsigned, s + <span class="tok-number">1</span>);</span> <span class="line" id="L27"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">bool</span>, <span class="tok-builtin">@bitCast</span>(<span class="tok-builtin">@as</span>(<span class="tok-type">u1</span>, <span class="tok-builtin">@truncate</span>((<span class="tok-builtin">@as</span>(Cext, <span class="tok-builtin">@as</span>(Cu, <span class="tok-builtin">@bitCast</span>(acc))) -% <span class="tok-number">1</span>) >> s))));</span> <span class="line" id="L28"> },</span> <span class="line" id="L29"> .Vector => \|info\| {</span> <span class="line" id="L30"> <span class="tok-kw">const</span> C = info.child;</span> <span class="line" id="L31"> <span class="tok-kw">if</span> (<span class="tok-builtin">@typeInfo</span>(C) != .Int) {</span> <span class="line" id="L32"> <span class="tok-builtin">@compileError</span>(<span class="tok-str">"Elements to be compared must be integers"</span>);</span> <span class="line" id="L33"> }</span> <span class="line" id="L34"> <span class="tok-kw">const</span> acc = <span class="tok-builtin">@reduce</span>(.Or, a ^ b);</span> <span class="line" id="L35"> <span class="tok-kw">const</span> s = <span class="tok-builtin">@typeInfo</span>(C).Int.bits;</span> <span class="line" id="L36"> <span class="tok-kw">const</span> Cu = std.meta.Int(.unsigned, s);</span> <span class="line" id="L37"> <span class="tok-kw">const</span> Cext = std.meta.Int(.unsigned, s + <span class="tok-number">1</span>);</span> <span class="line" id="L38"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">bool</span>, <span class="tok-builtin">@bitCast</span>(<span class="tok-builtin">@as</span>(<span class="tok-type">u1</span>, <span class="tok-builtin">@truncate</span>((<span class="tok-builtin">@as</span>(Cext, <span class="tok-builtin">@as</span>(Cu, <span class="tok-builtin">@bitCast</span>(acc))) -% <span class="tok-number">1</span>) >> s))));</span> <span class="line" id="L39"> },</span> <span class="line" id="L40"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L41"> <span class="tok-builtin">@compileError</span>(<span class="tok-str">"Only arrays and vectors can be compared"</span>);</span> <span class="line" id="L42"> },</span> <span class="line" id="L43"> }</span> <span class="line" id="L44">}</span> <span class="line" id="L45"></span> <span class="line" id="L46"><span class="tok-comment">/// Compare two integers serialized as arrays of the same size, in constant time.</span></span> <span class="line" id="L47"><span class="tok-comment">/// Returns .lt if a<b, .gt if a>b and .eq if a=b</span></span> <span class="line" id="L48"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">timingSafeCompare</span>(<span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>, a: []<span class="tok-kw">const</span> T, b: []<span class="tok-kw">const</span> T, endian: Endian) Order {</span> <span class="line" id="L49"> debug.assert(a.len == b.len);</span> <span class="line" id="L50"> <span class="tok-kw">const</span> bits = <span class="tok-kw">switch</span> (<span class="tok-builtin">@typeInfo</span>(T)) {</span> <span class="line" id="L51"> .Int => \|cinfo\| <span class="tok-kw">if</span> (cinfo.signedness != .unsigned) <span class="tok-builtin">@compileError</span>(<span class="tok-str">"Elements to be compared must be unsigned"</span>) <span class="tok-kw">else</span> cinfo.bits,</span> <span class="line" id="L52"> <span class="tok-kw">else</span> => <span class="tok-builtin">@compileError</span>(<span class="tok-str">"Elements to be compared must be integers"</span>),</span> <span class="line" id="L53"> };</span> <span class="line" id="L54"> <span class="tok-kw">const</span> Cext = std.meta.Int(.unsigned, bits + <span class="tok-number">1</span>);</span> <span class="line" id="L55"> <span class="tok-kw">var</span> gt: T = <span class="tok-number">0</span>;</span> <span class="line" id="L56"> <span class="tok-kw">var</span> eq: T = <span class="tok-number">1</span>;</span> <span class="line" id="L57"> <span class="tok-kw">if</span> (endian == .Little) {</span> <span class="line" id="L58"> <span class="tok-kw">var</span> i = a.len;</span> <span class="line" id="L59"> <span class="tok-kw">while</span> (i != <span class="tok-number">0</span>) {</span> <span class="line" id="L60"> i -= <span class="tok-number">1</span>;</span> <span class="line" id="L61"> <span class="tok-kw">const</span> x1 = a[i];</span> <span class="line" id="L62"> <span class="tok-kw">const</span> x2 = b[i];</span> <span class="line" id="L63"> gt \|= <span class="tok-builtin">@as</span>(T, <span class="tok-builtin">@truncate</span>((<span class="tok-builtin">@as</span>(Cext, x2) -% <span class="tok-builtin">@as</span>(Cext, x1)) >> bits)) & eq;</span> <span class="line" id="L64"> eq &= <span class="tok-builtin">@as</span>(T, <span class="tok-builtin">@truncate</span>((<span class="tok-builtin">@as</span>(Cext, (x2 ^ x1)) -% <span class="tok-number">1</span>) >> bits));</span> <span class="line" id="L65"> }</span> <span class="line" id="L66"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L67"> <span class="tok-kw">for</span> (a, <span class="tok-number">0</span>..) \|x1, i\| {</span> <span class="line" id="L68"> <span class="tok-kw">const</span> x2 = b[i];</span> <span class="line" id="L69"> gt \|= <span class="tok-builtin">@as</span>(T, <span class="tok-builtin">@truncate</span>((<span class="tok-builtin">@as</span>(Cext, x2) -% <span class="tok-builtin">@as</span>(Cext, x1)) >> bits)) & eq;</span> <span class="line" id="L70"> eq &= <span class="tok-builtin">@as</span>(T, <span class="tok-builtin">@truncate</span>((<span class="tok-builtin">@as</span>(Cext, (x2 ^ x1)) -% <span class="tok-number">1</span>) >> bits));</span> <span class="line" id="L71"> }</span> <span class="line" id="L72"> }</span> <span class="line" id="L73"> <span class="tok-kw">if</span> (gt != <span class="tok-number">0</span>) {</span> <span class="line" id="L74"> <span class="tok-kw">return</span> Order.gt;</span> <span class="line" id="L75"> } <span class="tok-kw">else</span> <span class="tok-kw">if</span> (eq != <span class="tok-number">0</span>) {</span> <span class="line" id="L76"> <span class="tok-kw">return</span> Order.eq;</span> <span class="line" id="L77"> }</span> <span class="line" id="L78"> <span class="tok-kw">return</span> Order.lt;</span> <span class="line" id="L79">}</span> <span class="line" id="L80"></span> <span class="line" id="L81"><span class="tok-comment">/// Add two integers serialized as arrays of the same size, in constant time.</span></span> <span class="line" id="L82"><span class="tok-comment">/// The result is stored into `result`, and `true` is returned if an overflow occurred.</span></span> <span class="line" id="L83"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">timingSafeAdd</span>(<span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>, a: []<span class="tok-kw">const</span> T, b: []<span class="tok-kw">const</span> T, result: []T, endian: Endian) <span class="tok-type">bool</span> {</span> <span class="line" id="L84"> <span class="tok-kw">const</span> len = a.len;</span> <span class="line" id="L85"> debug.assert(len == b.len <span class="tok-kw">and</span> len == result.len);</span> <span class="line" id="L86"> <span class="tok-kw">var</span> carry: <span class="tok-type">u1</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L87"> <span class="tok-kw">if</span> (endian == .Little) {</span> <span class="line" id="L88"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L89"> <span class="tok-kw">while</span> (i < len) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L90"> <span class="tok-kw">const</span> ov1 = <span class="tok-builtin">@addWithOverflow</span>(a[i], b[i]);</span> <span class="line" id="L91"> <span class="tok-kw">const</span> ov2 = <span class="tok-builtin">@addWithOverflow</span>(ov1[<span class="tok-number">0</span>], carry);</span> <span class="line" id="L92"> result[i] = ov2[<span class="tok-number">0</span>];</span> <span class="line" id="L93"> carry = ov1[<span class="tok-number">1</span>] \| ov2[<span class="tok-number">1</span>];</span> <span class="line" id="L94"> }</span> <span class="line" id="L95"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L96"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = len;</span> <span class="line" id="L97"> <span class="tok-kw">while</span> (i != <span class="tok-number">0</span>) {</span> <span class="line" id="L98"> i -= <span class="tok-number">1</span>;</span> <span class="line" id="L99"> <span class="tok-kw">const</span> ov1 = <span class="tok-builtin">@addWithOverflow</span>(a[i], b[i]);</span> <span class="line" id="L100"> <span class="tok-kw">const</span> ov2 = <span class="tok-builtin">@addWithOverflow</span>(ov1[<span class="tok-number">0</span>], carry);</span> <span class="line" id="L101"> result[i] = ov2[<span class="tok-number">0</span>];</span> <span class="line" id="L102"> carry = ov1[<span class="tok-number">1</span>] \| ov2[<span class="tok-number">1</span>];</span> <span class="line" id="L103"> }</span> <span class="line" id="L104"> }</span> <span class="line" id="L105"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">bool</span>, <span class="tok-builtin">@bitCast</span>(carry));</span> <span class="line" id="L106">}</span> <span class="line" id="L107"></span> <span class="line" id="L108"><span class="tok-comment">/// Subtract two integers serialized as arrays of the same size, in constant time.</span></span> <span class="line" id="L109"><span class="tok-comment">/// The result is stored into `result`, and `true` is returned if an underflow occurred.</span></span> <span class="line" id="L110"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">timingSafeSub</span>(<span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>, a: []<span class="tok-kw">const</span> T, b: []<span class="tok-kw">const</span> T, result: []T, endian: Endian) <span class="tok-type">bool</span> {</span> <span class="line" id="L111"> <span class="tok-kw">const</span> len = a.len;</span> <span class="line" id="L112"> debug.assert(len == b.len <span class="tok-kw">and</span> len == result.len);</span> <span class="line" id="L113"> <span class="tok-kw">var</span> borrow: <span class="tok-type">u1</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L114"> <span class="tok-kw">if</span> (endian == .Little) {</span> <span class="line" id="L115"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L116"> <span class="tok-kw">while</span> (i < len) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L117"> <span class="tok-kw">const</span> ov1 = <span class="tok-builtin">@subWithOverflow</span>(a[i], b[i]);</span> <span class="line" id="L118"> <span class="tok-kw">const</span> ov2 = <span class="tok-builtin">@subWithOverflow</span>(ov1[<span class="tok-number">0</span>], borrow);</span> <span class="line" id="L119"> result[i] = ov2[<span class="tok-number">0</span>];</span> <span class="line" id="L120"> borrow = ov1[<span class="tok-number">1</span>] \| ov2[<span class="tok-number">1</span>];</span> <span class="line" id="L121"> }</span> <span class="line" id="L122"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L123"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = len;</span> <span class="line" id="L124"> <span class="tok-kw">while</span> (i != <span class="tok-number">0</span>) {</span> <span class="line" id="L125"> i -= <span class="tok-number">1</span>;</span> <span class="line" id="L126"> <span class="tok-kw">const</span> ov1 = <span class="tok-builtin">@subWithOverflow</span>(a[i], b[i]);</span> <span class="line" id="L127"> <span class="tok-kw">const</span> ov2 = <span class="tok-builtin">@subWithOverflow</span>(ov1[<span class="tok-number">0</span>], borrow);</span> <span class="line" id="L128"> result[i] = ov2[<span class="tok-number">0</span>];</span> <span class="line" id="L129"> borrow = ov1[<span class="tok-number">1</span>] \| ov2[<span class="tok-number">1</span>];</span> <span class="line" id="L130"> }</span> <span class="line" id="L131"> }</span> <span class="line" id="L132"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">bool</span>, <span class="tok-builtin">@bitCast</span>(borrow));</span> <span class="line" id="L133">}</span> <span class="line" id="L134"></span> <span class="line" id="L135"><span class="tok-comment">/// Sets a slice to zeroes.</span></span> <span class="line" id="L136"><span class="tok-comment">/// Prevents the store from being optimized out.</span></span> <span class="line" id="L137"><span class="tok-kw">pub</span> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">secureZero</span>(<span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>, s: []T) <span class="tok-type">void</span> {</span> <span class="line" id="L138"> <span class="tok-builtin">@memset</span>(<span class="tok-builtin">@as</span>([]<span class="tok-kw">volatile</span> T, s), <span class="tok-number">0</span>);</span> <span class="line" id="L139">}</span> <span class="line" id="L140"></span> <span class="line" id="L141"><span class="tok-kw">test</span> <span class="tok-str">"crypto.utils.timingSafeEql"</span> {</span> <span class="line" id="L142"> <span class="tok-kw">var</span> a: [<span class="tok-number">100</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L143"> <span class="tok-kw">var</span> b: [<span class="tok-number">100</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L144"> random.bytes(a[<span class="tok-number">0</span>..]);</span> <span class="line" id="L145"> random.bytes(b[<span class="tok-number">0</span>..]);</span> <span class="line" id="L146"> <span class="tok-kw">try</span> testing.expect(!timingSafeEql([<span class="tok-number">100</span>]<span class="tok-type">u8</span>, a, b));</span> <span class="line" id="L147"> a = b;</span> <span class="line" id="L148"> <span class="tok-kw">try</span> testing.expect(timingSafeEql([<span class="tok-number">100</span>]<span class="tok-type">u8</span>, a, b));</span> <span class="line" id="L149">}</span> <span class="line" id="L150"></span> <span class="line" id="L151"><span class="tok-kw">test</span> <span class="tok-str">"crypto.utils.timingSafeEql (vectors)"</span> {</span> <span class="line" id="L152"> <span class="tok-kw">var</span> a: [<span class="tok-number">100</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L153"> <span class="tok-kw">var</span> b: [<span class="tok-number">100</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L154"> random.bytes(a[<span class="tok-number">0</span>..]);</span> <span class="line" id="L155"> random.bytes(b[<span class="tok-number">0</span>..]);</span> <span class="line" id="L156"> <span class="tok-kw">const</span> v1: <span class="tok-builtin">@Vector</span>(<span class="tok-number">100</span>, <span class="tok-type">u8</span>) = a;</span> <span class="line" id="L157"> <span class="tok-kw">const</span> v2: <span class="tok-builtin">@Vector</span>(<span class="tok-number">100</span>, <span class="tok-type">u8</span>) = b;</span> <span class="line" id="L158"> <span class="tok-kw">try</span> testing.expect(!timingSafeEql(<span class="tok-builtin">@Vector</span>(<span class="tok-number">100</span>, <span class="tok-type">u8</span>), v1, v2));</span> <span class="line" id="L159"> <span class="tok-kw">const</span> v3: <span class="tok-builtin">@Vector</span>(<span class="tok-number">100</span>, <span class="tok-type">u8</span>) = a;</span> <span class="line" id="L160"> <span class="tok-kw">try</span> testing.expect(timingSafeEql(<span class="tok-builtin">@Vector</span>(<span class="tok-number">100</span>, <span class="tok-type">u8</span>), v1, v3));</span> <span class="line" id="L161">}</span> <span class="line" id="L162"></span> <span class="line" id="L163"><span class="tok-kw">test</span> <span class="tok-str">"crypto.utils.timingSafeCompare"</span> {</span> <span class="line" id="L164"> <span class="tok-kw">var</span> a = [_]<span class="tok-type">u8</span>{<span class="tok-number">10</span>} <span class="tok-number">32</span>;</span> <span class="line" id="L165"> <span class="tok-kw">var</span> b = [_]<span class="tok-type">u8</span>{<span class="tok-number">10</span>} <span class="tok-number">32</span>;</span> <span class="line" id="L166"> <span class="tok-kw">try</span> testing.expectEqual(timingSafeCompare(<span class="tok-type">u8</span>, &a, &b, .Big), .eq);</span> <span class="line" id="L167"> <span class="tok-kw">try</span> testing.expectEqual(timingSafeCompare(<span class="tok-type">u8</span>, &a, &b, .Little), .eq);</span> <span class="line" id="L168"> a[<span class="tok-number">31</span>] = <span class="tok-number">1</span>;</span> <span class="line" id="L169"> <span class="tok-kw">try</span> testing.expectEqual(timingSafeCompare(<span class="tok-type">u8</span>, &a, &b, .Big), .lt);</span> <span class="line" id="L170"> <span class="tok-kw">try</span> testing.expectEqual(timingSafeCompare(<span class="tok-type">u8</span>, &a, &b, .Little), .lt);</span> <span class="line" id="L171"> a[<span class="tok-number">0</span>] = <span class="tok-number">20</span>;</span> <span class="line" id="L172"> <span class="tok-kw">try</span> testing.expectEqual(timingSafeCompare(<span class="tok-type">u8</span>, &a, &b, .Big), .gt);</span> <span class="line" id="L173"> <span class="tok-kw">try</span> testing.expectEqual(timingSafeCompare(<span class="tok-type">u8</span>, &a, &b, .Little), .lt);</span> <span class="line" id="L174">}</span> <span class="line" id="L175"></span> <span class="line" id="L176"><span class="tok-kw">test</span> <span class="tok-str">"crypto.utils.timingSafe{Add,Sub}"</span> {</span> <span class="line" id="L177"> <span class="tok-kw">const</span> len = <span class="tok-number">32</span>;</span> <span class="line" id="L178"> <span class="tok-kw">var</span> a: [len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L179"> <span class="tok-kw">var</span> b: [len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L180"> <span class="tok-kw">var</span> c: [len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L181"> <span class="tok-kw">const</span> zero = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} len;</span> <span class="line" id="L182"> <span class="tok-kw">var</span> iterations: <span class="tok-type">usize</span> = <span class="tok-number">100</span>;</span> <span class="line" id="L183"> <span class="tok-kw">while</span> (iterations != <span class="tok-number">0</span>) : (iterations -= <span class="tok-number">1</span>) {</span> <span class="line" id="L184"> random.bytes(&a);</span> <span class="line" id="L185"> random.bytes(&b);</span> <span class="line" id="L186"> <span class="tok-kw">const</span> endian = <span class="tok-kw">if</span> (iterations % <span class="tok-number">2</span> == <span class="tok-number">0</span>) Endian.Big <span class="tok-kw">else</span> Endian.Little;</span> <span class="line" id="L187"> _ = timingSafeSub(<span class="tok-type">u8</span>, &a, &b, &c, endian); <span class="tok-comment">// a-b</span> </span> <span class="line" id="L188"> _ = timingSafeAdd(<span class="tok-type">u8</span>, &c, &b, &c, endian); <span class="tok-comment">// (a-b)+b</span> </span> <span class="line" id="L189"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, &c, &a);</span> <span class="line" id="L190"> <span class="tok-kw">const</span> borrow = timingSafeSub(<span class="tok-type">u8</span>, &c, &a, &c, endian); <span class="tok-comment">// ((a-b)+b)-a</span> </span> <span class="line" id="L191"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, &c, &zero);</span> <span class="line" id="L192"> <span class="tok-kw">try</span> testing.expectEqual(borrow, <span class="tok-null">false</span>);</span> <span class="line" id="L193"> }</span> <span class="line" id="L194">}</span> <span class="line" id="L195"></span> <span class="line" id="L196"><span class="tok-kw">test</span> <span class="tok-str">"crypto.utils.secureZero"</span> {</span> <span class="line" id="L197"> <span class="tok-kw">var</span> a = [_]<span class="tok-type">u8</span>{<span class="tok-number">0xfe</span>} <span class="tok-number">8</span>;</span> <span class="line" id="L198"> <span class="tok-kw">var</span> b = [_]<span class="tok-type">u8</span>{<span class="tok-number">0xfe</span>} ** <span class="tok-number">8</span>;</span> <span class="line" id="L199"></span> <span class="line" id="L200"> <span class="tok-builtin">@memset</span>(a[<span class="tok-number">0</span>..], <span class="tok-number">0</span>);</span> <span class="line" id="L201"> secureZero(<span class="tok-type">u8</span>, b[<span class="tok-number">0</span>..]);</span> <span class="line" id="L202"></span> <span class="line" id="L203"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, a[<span class="tok-number">0</span>..], b[<span class="tok-number">0</span>..]);</span> <span class="line" id="L204">}</span> <span class="line" id="L205"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/crypto/hkdf.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/hkdf.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"../std.zig"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> assert = std.debug.assert;</span> <span class="line" id="L3"><span class="tok-kw">const</span> hmac = std.crypto.auth.hmac;</span> <span class="line" id="L4"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L5"></span> <span class="line" id="L6"><span class="tok-comment">/// HKDF-SHA256</span></span> <span class="line" id="L7"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> HkdfSha256 = Hkdf(hmac.sha2.HmacSha256);</span> <span class="line" id="L8"></span> <span class="line" id="L9"><span class="tok-comment">/// HKDF-SHA512</span></span> <span class="line" id="L10"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> HkdfSha512 = Hkdf(hmac.sha2.HmacSha512);</span> <span class="line" id="L11"></span> <span class="line" id="L12"><span class="tok-comment">/// The Hkdf construction takes some source of initial keying material and</span></span> <span class="line" id="L13"><span class="tok-comment">/// derives one or more uniform keys from it.</span></span> <span class="line" id="L14"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">Hkdf</span>(<span class="tok-kw">comptime</span> Hmac: <span class="tok-type">type</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L15"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L16"> <span class="tok-comment">/// Length of a master key, in bytes.</span></span> <span class="line" id="L17"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> prk_length = Hmac.mac_length;</span> <span class="line" id="L18"></span> <span class="line" id="L19"> <span class="tok-comment">/// Return a master key from a salt and initial keying material.</span></span> <span class="line" id="L20"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">extract</span>(salt: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, ikm: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) [prk_length]<span class="tok-type">u8</span> {</span> <span class="line" id="L21"> <span class="tok-kw">var</span> prk: [prk_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L22"> Hmac.create(&prk, ikm, salt);</span> <span class="line" id="L23"> <span class="tok-kw">return</span> prk;</span> <span class="line" id="L24"> }</span> <span class="line" id="L25"></span> <span class="line" id="L26"> <span class="tok-comment">/// Initialize the creation of a master key from a salt</span></span> <span class="line" id="L27"> <span class="tok-comment">/// and keying material that can be added later, possibly in chunks.</span></span> <span class="line" id="L28"> <span class="tok-comment">/// Example:</span></span> <span class="line" id="L29"> <span class="tok-comment">/// ```</span></span> <span class="line" id="L30"> <span class="tok-comment">/// var prk: [hkdf.prk_length]u8 = undefined;</span></span> <span class="line" id="L31"> <span class="tok-comment">/// var hkdf = HkdfSha256.extractInit(salt);</span></span> <span class="line" id="L32"> <span class="tok-comment">/// hkdf.update(ikm1);</span></span> <span class="line" id="L33"> <span class="tok-comment">/// hkdf.update(ikm2);</span></span> <span class="line" id="L34"> <span class="tok-comment">/// hkdf.final(&prk);</span></span> <span class="line" id="L35"> <span class="tok-comment">/// ```</span></span> <span class="line" id="L36"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">extractInit</span>(salt: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) Hmac {</span> <span class="line" id="L37"> <span class="tok-kw">return</span> Hmac.init(salt);</span> <span class="line" id="L38"> }</span> <span class="line" id="L39"></span> <span class="line" id="L40"> <span class="tok-comment">/// Derive a subkey from a master key `prk` and a subkey description `ctx`.</span></span> <span class="line" id="L41"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">expand</span>(out: []<span class="tok-type">u8</span>, ctx: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, prk: [prk_length]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L42"> assert(out.len <= prk_length * <span class="tok-number">255</span>); <span class="tok-comment">// output size is too large for the Hkdf construction</span> </span> <span class="line" id="L43"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L44"> <span class="tok-kw">var</span> counter = [<span class="tok-number">1</span>]<span class="tok-type">u8</span>{<span class="tok-number">1</span>};</span> <span class="line" id="L45"> <span class="tok-kw">while</span> (i + prk_length <= out.len) : (i += prk_length) {</span> <span class="line" id="L46"> <span class="tok-kw">var</span> st = Hmac.init(&prk);</span> <span class="line" id="L47"> <span class="tok-kw">if</span> (i != <span class="tok-number">0</span>) {</span> <span class="line" id="L48"> st.update(out[i - prk_length ..][<span class="tok-number">0</span>..prk_length]);</span> <span class="line" id="L49"> }</span> <span class="line" id="L50"> st.update(ctx);</span> <span class="line" id="L51"> st.update(&counter);</span> <span class="line" id="L52"> st.final(out[i..][<span class="tok-number">0</span>..prk_length]);</span> <span class="line" id="L53"> counter[<span class="tok-number">0</span>] +%= <span class="tok-number">1</span>;</span> <span class="line" id="L54"> assert(counter[<span class="tok-number">0</span>] != <span class="tok-number">1</span>);</span> <span class="line" id="L55"> }</span> <span class="line" id="L56"> <span class="tok-kw">const</span> left = out.len % prk_length;</span> <span class="line" id="L57"> <span class="tok-kw">if</span> (left > <span class="tok-number">0</span>) {</span> <span class="line" id="L58"> <span class="tok-kw">var</span> st = Hmac.init(&prk);</span> <span class="line" id="L59"> <span class="tok-kw">if</span> (i != <span class="tok-number">0</span>) {</span> <span class="line" id="L60"> st.update(out[i - prk_length ..][<span class="tok-number">0</span>..prk_length]);</span> <span class="line" id="L61"> }</span> <span class="line" id="L62"> st.update(ctx);</span> <span class="line" id="L63"> st.update(&counter);</span> <span class="line" id="L64"> <span class="tok-kw">var</span> tmp: [prk_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L65"> st.final(tmp[<span class="tok-number">0</span>..prk_length]);</span> <span class="line" id="L66"> <span class="tok-builtin">@memcpy</span>(out[i..][<span class="tok-number">0</span>..left], tmp[<span class="tok-number">0</span>..left]);</span> <span class="line" id="L67"> }</span> <span class="line" id="L68"> }</span> <span class="line" id="L69"> };</span> <span class="line" id="L70">}</span> <span class="line" id="L71"></span> <span class="line" id="L72"><span class="tok-kw">const</span> htest = <span class="tok-builtin">@import</span>(<span class="tok-str">"test.zig"</span>);</span> <span class="line" id="L73"></span> <span class="line" id="L74"><span class="tok-kw">test</span> <span class="tok-str">"Hkdf"</span> {</span> <span class="line" id="L75"> <span class="tok-kw">const</span> ikm = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x0b</span>} ** <span class="tok-number">22</span>;</span> <span class="line" id="L76"> <span class="tok-kw">const</span> salt = [_]<span class="tok-type">u8</span>{ <span class="tok-number">0x00</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x02</span>, <span class="tok-number">0x03</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x05</span>, <span class="tok-number">0x06</span>, <span class="tok-number">0x07</span>, <span class="tok-number">0x08</span>, <span class="tok-number">0x09</span>, <span class="tok-number">0x0a</span>, <span class="tok-number">0x0b</span>, <span class="tok-number">0x0c</span> };</span> <span class="line" id="L77"> <span class="tok-kw">const</span> context = [_]<span class="tok-type">u8</span>{ <span class="tok-number">0xf0</span>, <span class="tok-number">0xf1</span>, <span class="tok-number">0xf2</span>, <span class="tok-number">0xf3</span>, <span class="tok-number">0xf4</span>, <span class="tok-number">0xf5</span>, <span class="tok-number">0xf6</span>, <span class="tok-number">0xf7</span>, <span class="tok-number">0xf8</span>, <span class="tok-number">0xf9</span> };</span> <span class="line" id="L78"> <span class="tok-kw">const</span> kdf = HkdfSha256;</span> <span class="line" id="L79"> <span class="tok-kw">const</span> prk = kdf.extract(&salt, &ikm);</span> <span class="line" id="L80"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"077709362c2e32df0ddc3f0dc47bba6390b6c73bb50f9c3122ec844ad7c2b3e5"</span>, &prk);</span> <span class="line" id="L81"> <span class="tok-kw">var</span> out: [<span class="tok-number">42</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L82"> kdf.expand(&out, &context, prk);</span> <span class="line" id="L83"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"3cb25f25faacd57a90434f64d0362f2a2d2d0a90cf1a5a4c5db02d56ecc4c5bf34007208d5b887185865"</span>, &out);</span> <span class="line" id="L84"></span> <span class="line" id="L85"> <span class="tok-kw">var</span> hkdf = kdf.extractInit(&salt);</span> <span class="line" id="L86"> hkdf.update(&ikm);</span> <span class="line" id="L87"> <span class="tok-kw">var</span> prk2: [kdf.prk_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L88"> hkdf.final(&prk2);</span> <span class="line" id="L89"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"077709362c2e32df0ddc3f0dc47bba6390b6c73bb50f9c3122ec844ad7c2b3e5"</span>, &prk2);</span> <span class="line" id="L90">}</span> <span class="line" id="L91"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/crypto/bcrypt.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/bcrypt.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> base64 = std.base64;</span> <span class="line" id="L3"><span class="tok-kw">const</span> crypto = std.crypto;</span> <span class="line" id="L4"><span class="tok-kw">const</span> debug = std.debug;</span> <span class="line" id="L5"><span class="tok-kw">const</span> fmt = std.fmt;</span> <span class="line" id="L6"><span class="tok-kw">const</span> math = std.math;</span> <span class="line" id="L7"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L8"><span class="tok-kw">const</span> pwhash = crypto.pwhash;</span> <span class="line" id="L9"><span class="tok-kw">const</span> testing = std.testing;</span> <span class="line" id="L10"><span class="tok-kw">const</span> HmacSha512 = crypto.auth.hmac.sha2.HmacSha512;</span> <span class="line" id="L11"><span class="tok-kw">const</span> Sha512 = crypto.hash.sha2.Sha512;</span> <span class="line" id="L12"><span class="tok-kw">const</span> utils = crypto.utils;</span> <span class="line" id="L13"></span> <span class="line" id="L14"><span class="tok-kw">const</span> phc_format = <span class="tok-builtin">@import</span>(<span class="tok-str">"phc_encoding.zig"</span>);</span> <span class="line" id="L15"></span> <span class="line" id="L16"><span class="tok-kw">const</span> KdfError = pwhash.KdfError;</span> <span class="line" id="L17"><span class="tok-kw">const</span> HasherError = pwhash.HasherError;</span> <span class="line" id="L18"><span class="tok-kw">const</span> EncodingError = phc_format.Error;</span> <span class="line" id="L19"><span class="tok-kw">const</span> Error = pwhash.Error;</span> <span class="line" id="L20"></span> <span class="line" id="L21"><span class="tok-kw">const</span> salt_length: <span class="tok-type">usize</span> = <span class="tok-number">16</span>;</span> <span class="line" id="L22"><span class="tok-kw">const</span> salt_str_length: <span class="tok-type">usize</span> = <span class="tok-number">22</span>;</span> <span class="line" id="L23"><span class="tok-kw">const</span> ct_str_length: <span class="tok-type">usize</span> = <span class="tok-number">31</span>;</span> <span class="line" id="L24"><span class="tok-kw">const</span> ct_length: <span class="tok-type">usize</span> = <span class="tok-number">24</span>;</span> <span class="line" id="L25"><span class="tok-kw">const</span> dk_length: <span class="tok-type">usize</span> = ct_length - <span class="tok-number">1</span>;</span> <span class="line" id="L26"></span> <span class="line" id="L27"><span class="tok-comment">/// Length (in bytes) of a password hash in crypt encoding</span></span> <span class="line" id="L28"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> hash_length: <span class="tok-type">usize</span> = <span class="tok-number">60</span>;</span> <span class="line" id="L29"></span> <span class="line" id="L30"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> State = <span class="tok-kw">struct</span> {</span> <span class="line" id="L31"> sboxes: [<span class="tok-number">4</span>][<span class="tok-number">256</span>]<span class="tok-type">u32</span> = [<span class="tok-number">4</span>][<span class="tok-number">256</span>]<span class="tok-type">u32</span>{</span> <span class="line" id="L32"> .{</span> <span class="line" id="L33"> <span class="tok-number">0xd1310ba6</span>, <span class="tok-number">0x98dfb5ac</span>, <span class="tok-number">0x2ffd72db</span>, <span class="tok-number">0xd01adfb7</span>,</span> <span class="line" id="L34"> <span class="tok-number">0xb8e1afed</span>, <span class="tok-number">0x6a267e96</span>, <span class="tok-number">0xba7c9045</span>, <span class="tok-number">0xf12c7f99</span>,</span> <span class="line" id="L35"> <span class="tok-number">0x24a19947</span>, <span class="tok-number">0xb3916cf7</span>, <span class="tok-number">0x0801f2e2</span>, <span class="tok-number">0x858efc16</span>,</span> <span class="line" id="L36"> <span class="tok-number">0x636920d8</span>, <span class="tok-number">0x71574e69</span>, <span class="tok-number">0xa458fea3</span>, <span class="tok-number">0xf4933d7e</span>,</span> <span class="line" id="L37"> <span class="tok-number">0x0d95748f</span>, <span class="tok-number">0x728eb658</span>, <span class="tok-number">0x718bcd58</span>, <span class="tok-number">0x82154aee</span>,</span> <span class="line" id="L38"> <span class="tok-number">0x7b54a41d</span>, <span class="tok-number">0xc25a59b5</span>, <span class="tok-number">0x9c30d539</span>, <span class="tok-number">0x2af26013</span>,</span> <span class="line" id="L39"> <span class="tok-number">0xc5d1b023</span>, <span class="tok-number">0x286085f0</span>, <span class="tok-number">0xca417918</span>, <span class="tok-number">0xb8db38ef</span>,</span> <span class="line" id="L40"> <span class="tok-number">0x8e79dcb0</span>, <span class="tok-number">0x603a180e</span>, <span class="tok-number">0x6c9e0e8b</span>, <span class="tok-number">0xb01e8a3e</span>,</span> <span class="line" id="L41"> <span class="tok-number">0xd71577c1</span>, <span class="tok-number">0xbd314b27</span>, <span class="tok-number">0x78af2fda</span>, <span class="tok-number">0x55605c60</span>,</span> <span class="line" id="L42"> <span class="tok-number">0xe65525f3</span>, <span class="tok-number">0xaa55ab94</span>, <span class="tok-number">0x57489862</span>, <span class="tok-number">0x63e81440</span>,</span> <span class="line" id="L43"> <span class="tok-number">0x55ca396a</span>, <span class="tok-number">0x2aab10b6</span>, <span class="tok-number">0xb4cc5c34</span>, <span class="tok-number">0x1141e8ce</span>,</span> <span class="line" id="L44"> <span class="tok-number">0xa15486af</span>, <span class="tok-number">0x7c72e993</span>, <span class="tok-number">0xb3ee1411</span>, <span class="tok-number">0x636fbc2a</span>,</span> <span class="line" id="L45"> <span class="tok-number">0x2ba9c55d</span>, <span class="tok-number">0x741831f6</span>, <span class="tok-number">0xce5c3e16</span>, <span class="tok-number">0x9b87931e</span>,</span> <span class="line" id="L46"> <span class="tok-number">0xafd6ba33</span>, <span class="tok-number">0x6c24cf5c</span>, <span class="tok-number">0x7a325381</span>, <span class="tok-number">0x28958677</span>,</span> <span class="line" id="L47"> <span class="tok-number">0x3b8f4898</span>, <span class="tok-number">0x6b4bb9af</span>, <span class="tok-number">0xc4bfe81b</span>, <span class="tok-number">0x66282193</span>,</span> <span class="line" id="L48"> <span class="tok-number">0x61d809cc</span>, <span class="tok-number">0xfb21a991</span>, <span class="tok-number">0x487cac60</span>, <span class="tok-number">0x5dec8032</span>,</span> <span class="line" id="L49"> <span class="tok-number">0xef845d5d</span>, <span class="tok-number">0xe98575b1</span>, <span class="tok-number">0xdc262302</span>, <span class="tok-number">0xeb651b88</span>,</span> <span class="line" id="L50"> <span class="tok-number">0x23893e81</span>, <span class="tok-number">0xd396acc5</span>, <span class="tok-number">0x0f6d6ff3</span>, <span class="tok-number">0x83f44239</span>,</span> <span class="line" id="L51"> <span class="tok-number">0x2e0b4482</span>, <span class="tok-number">0xa4842004</span>, <span class="tok-number">0x69c8f04a</span>, <span class="tok-number">0x9e1f9b5e</span>,</span> <span class="line" id="L52"> <span class="tok-number">0x21c66842</span>, <span class="tok-number">0xf6e96c9a</span>, <span class="tok-number">0x670c9c61</span>, <span class="tok-number">0xabd388f0</span>,</span> <span class="line" id="L53"> <span class="tok-number">0x6a51a0d2</span>, <span class="tok-number">0xd8542f68</span>, <span class="tok-number">0x960fa728</span>, <span class="tok-number">0xab5133a3</span>,</span> <span class="line" id="L54"> <span class="tok-number">0x6eef0b6c</span>, <span class="tok-number">0x137a3be4</span>, <span class="tok-number">0xba3bf050</span>, <span class="tok-number">0x7efb2a98</span>,</span> <span class="line" id="L55"> <span class="tok-number">0xa1f1651d</span>, <span class="tok-number">0x39af0176</span>, <span class="tok-number">0x66ca593e</span>, <span class="tok-number">0x82430e88</span>,</span> <span class="line" id="L56"> <span class="tok-number">0x8cee8619</span>, <span class="tok-number">0x456f9fb4</span>, <span class="tok-number">0x7d84a5c3</span>, <span class="tok-number">0x3b8b5ebe</span>,</span> <span class="line" id="L57"> <span class="tok-number">0xe06f75d8</span>, <span class="tok-number">0x85c12073</span>, <span class="tok-number">0x401a449f</span>, <span class="tok-number">0x56c16aa6</span>,</span> <span class="line" id="L58"> <span class="tok-number">0x4ed3aa62</span>, <span class="tok-number">0x363f7706</span>, <span class="tok-number">0x1bfedf72</span>, <span class="tok-number">0x429b023d</span>,</span> <span class="line" id="L59"> <span class="tok-number">0x37d0d724</span>, <span class="tok-number">0xd00a1248</span>, <span class="tok-number">0xdb0fead3</span>, <span class="tok-number">0x49f1c09b</span>,</span> <span class="line" id="L60"> <span class="tok-number">0x075372c9</span>, <span class="tok-number">0x80991b7b</span>, <span class="tok-number">0x25d479d8</span>, <span class="tok-number">0xf6e8def7</span>,</span> <span class="line" id="L61"> <span class="tok-number">0xe3fe501a</span>, <span class="tok-number">0xb6794c3b</span>, <span class="tok-number">0x976ce0bd</span>, <span class="tok-number">0x04c006ba</span>,</span> <span class="line" id="L62"> <span class="tok-number">0xc1a94fb6</span>, <span class="tok-number">0x409f60c4</span>, <span class="tok-number">0x5e5c9ec2</span>, <span class="tok-number">0x196a2463</span>,</span> <span class="line" id="L63"> <span class="tok-number">0x68fb6faf</span>, <span class="tok-number">0x3e6c53b5</span>, <span class="tok-number">0x1339b2eb</span>, <span class="tok-number">0x3b52ec6f</span>,</span> <span class="line" id="L64"> <span class="tok-number">0x6dfc511f</span>, <span class="tok-number">0x9b30952c</span>, <span class="tok-number">0xcc814544</span>, <span class="tok-number">0xaf5ebd09</span>,</span> <span class="line" id="L65"> <span class="tok-number">0xbee3d004</span>, <span class="tok-number">0xde334afd</span>, <span class="tok-number">0x660f2807</span>, <span class="tok-number">0x192e4bb3</span>,</span> <span class="line" id="L66"> <span class="tok-number">0xc0cba857</span>, <span class="tok-number">0x45c8740f</span>, <span class="tok-number">0xd20b5f39</span>, <span class="tok-number">0xb9d3fbdb</span>,</span> <span class="line" id="L67"> <span class="tok-number">0x5579c0bd</span>, <span class="tok-number">0x1a60320a</span>, <span class="tok-number">0xd6a100c6</span>, <span class="tok-number">0x402c7279</span>,</span> <span class="line" id="L68"> <span class="tok-number">0x679f25fe</span>, <span class="tok-number">0xfb1fa3cc</span>, <span class="tok-number">0x8ea5e9f8</span>, <span class="tok-number">0xdb3222f8</span>,</span> <span class="line" id="L69"> <span class="tok-number">0x3c7516df</span>, <span class="tok-number">0xfd616b15</span>, <span class="tok-number">0x2f501ec8</span>, <span class="tok-number">0xad0552ab</span>,</span> <span class="line" id="L70"> <span class="tok-number">0x323db5fa</span>, <span class="tok-number">0xfd238760</span>, <span class="tok-number">0x53317b48</span>, <span class="tok-number">0x3e00df82</span>,</span> <span class="line" id="L71"> <span class="tok-number">0x9e5c57bb</span>, <span class="tok-number">0xca6f8ca0</span>, <span class="tok-number">0x1a87562e</span>, <span class="tok-number">0xdf1769db</span>,</span> <span class="line" id="L72"> <span class="tok-number">0xd542a8f6</span>, <span class="tok-number">0x287effc3</span>, <span class="tok-number">0xac6732c6</span>, <span class="tok-number">0x8c4f5573</span>,</span> <span class="line" id="L73"> <span class="tok-number">0x695b27b0</span>, <span class="tok-number">0xbbca58c8</span>, <span class="tok-number">0xe1ffa35d</span>, <span class="tok-number">0xb8f011a0</span>,</span> <span class="line" id="L74"> <span class="tok-number">0x10fa3d98</span>, <span class="tok-number">0xfd2183b8</span>, <span class="tok-number">0x4afcb56c</span>, <span class="tok-number">0x2dd1d35b</span>,</span> <span class="line" id="L75"> <span class="tok-number">0x9a53e479</span>, <span class="tok-number">0xb6f84565</span>, <span class="tok-number">0xd28e49bc</span>, <span class="tok-number">0x4bfb9790</span>,</span> <span class="line" id="L76"> <span class="tok-number">0xe1ddf2da</span>, <span class="tok-number">0xa4cb7e33</span>, <span class="tok-number">0x62fb1341</span>, <span 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class="tok-number">0xa1fad5f0</span>, <span class="tok-number">0x6a2d519a</span>, <span class="tok-number">0x63ef8ce2</span>, <span class="tok-number">0x9a86ee22</span>,</span> <span class="line" id="L239"> <span class="tok-number">0xc089c2b8</span>, <span class="tok-number">0x43242ef6</span>, <span class="tok-number">0xa51e03aa</span>, <span class="tok-number">0x9cf2d0a4</span>,</span> <span class="line" id="L240"> <span class="tok-number">0x83c061ba</span>, <span class="tok-number">0x9be96a4d</span>, <span class="tok-number">0x8fe51550</span>, <span class="tok-number">0xba645bd6</span>,</span> <span class="line" id="L241"> <span class="tok-number">0x2826a2f9</span>, <span class="tok-number">0xa73a3ae1</span>, <span class="tok-number">0x4ba99586</span>, <span class="tok-number">0xef5562e9</span>,</span> <span class="line" id="L242"> <span class="tok-number">0xc72fefd3</span>, <span class="tok-number">0xf752f7da</span>, <span class="tok-number">0x3f046f69</span>, <span class="tok-number">0x77fa0a59</span>,</span> <span class="line" id="L243"> <span class="tok-number">0x80e4a915</span>, <span class="tok-number">0x87b08601</span>, <span class="tok-number">0x9b09e6ad</span>, <span class="tok-number">0x3b3ee593</span>,</span> <span class="line" id="L244"> <span class="tok-number">0xe990fd5a</span>, <span class="tok-number">0x9e34d797</span>, <span class="tok-number">0x2cf0b7d9</span>, <span class="tok-number">0x022b8b51</span>,</span> <span class="line" id="L245"> <span class="tok-number">0x96d5ac3a</span>, <span class="tok-number">0x017da67d</span>, <span class="tok-number">0xd1cf3ed6</span>, <span class="tok-number">0x7c7d2d28</span>,</span> <span class="line" id="L246"> <span class="tok-number">0x1f9f25cf</span>, <span class="tok-number">0xadf2b89b</span>, <span class="tok-number">0x5ad6b472</span>, <span class="tok-number">0x5a88f54c</span>,</span> <span class="line" id="L247"> <span class="tok-number">0xe029ac71</span>, <span class="tok-number">0xe019a5e6</span>, <span class="tok-number">0x47b0acfd</span>, <span class="tok-number">0xed93fa9b</span>,</span> <span class="line" id="L248"> <span class="tok-number">0xe8d3c48d</span>, <span class="tok-number">0x283b57cc</span>, <span class="tok-number">0xf8d56629</span>, <span class="tok-number">0x79132e28</span>,</span> <span class="line" id="L249"> <span class="tok-number">0x785f0191</span>, <span class="tok-number">0xed756055</span>, <span class="tok-number">0xf7960e44</span>, <span class="tok-number">0xe3d35e8c</span>,</span> <span class="line" id="L250"> <span class="tok-number">0x15056dd4</span>, <span class="tok-number">0x88f46dba</span>, <span class="tok-number">0x03a16125</span>, <span class="tok-number">0x0564f0bd</span>,</span> <span class="line" id="L251"> <span class="tok-number">0xc3eb9e15</span>, <span class="tok-number">0x3c9057a2</span>, <span class="tok-number">0x97271aec</span>, <span class="tok-number">0xa93a072a</span>,</span> <span class="line" id="L252"> <span class="tok-number">0x1b3f6d9b</span>, <span class="tok-number">0x1e6321f5</span>, <span class="tok-number">0xf59c66fb</span>, <span class="tok-number">0x26dcf319</span>,</span> <span class="line" id="L253"> <span class="tok-number">0x7533d928</span>, <span class="tok-number">0xb155fdf5</span>, <span class="tok-number">0x03563482</span>, <span class="tok-number">0x8aba3cbb</span>,</span> <span class="line" id="L254"> <span class="tok-number">0x28517711</span>, <span class="tok-number">0xc20ad9f8</span>, <span class="tok-number">0xabcc5167</span>, <span class="tok-number">0xccad925f</span>,</span> <span class="line" id="L255"> <span class="tok-number">0x4de81751</span>, <span class="tok-number">0x3830dc8e</span>, <span class="tok-number">0x379d5862</span>, <span class="tok-number">0x9320f991</span>,</span> <span class="line" id="L256"> <span class="tok-number">0xea7a90c2</span>, <span class="tok-number">0xfb3e7bce</span>, <span class="tok-number">0x5121ce64</span>, <span class="tok-number">0x774fbe32</span>,</span> <span class="line" id="L257"> <span class="tok-number">0xa8b6e37e</span>, <span class="tok-number">0xc3293d46</span>, <span class="tok-number">0x48de5369</span>, <span class="tok-number">0x6413e680</span>,</span> <span class="line" id="L258"> <span class="tok-number">0xa2ae0810</span>, <span class="tok-number">0xdd6db224</span>, <span class="tok-number">0x69852dfd</span>, <span class="tok-number">0x09072166</span>,</span> <span class="line" id="L259"> <span class="tok-number">0xb39a460a</span>, <span class="tok-number">0x6445c0dd</span>, <span class="tok-number">0x586cdecf</span>, <span class="tok-number">0x1c20c8ae</span>,</span> <span class="line" id="L260"> <span class="tok-number">0x5bbef7dd</span>, <span class="tok-number">0x1b588d40</span>, <span class="tok-number">0xccd2017f</span>, <span class="tok-number">0x6bb4e3bb</span>,</span> <span class="line" id="L261"> <span class="tok-number">0xdda26a7e</span>, <span class="tok-number">0x3a59ff45</span>, <span class="tok-number">0x3e350a44</span>, <span class="tok-number">0xbcb4cdd5</span>,</span> <span class="line" id="L262"> <span class="tok-number">0x72eacea8</span>, <span class="tok-number">0xfa6484bb</span>, <span class="tok-number">0x8d6612ae</span>, <span class="tok-number">0xbf3c6f47</span>,</span> <span class="line" id="L263"> <span class="tok-number">0xd29be463</span>, <span class="tok-number">0x542f5d9e</span>, <span class="tok-number">0xaec2771b</span>, <span class="tok-number">0xf64e6370</span>,</span> <span class="line" id="L264"> <span class="tok-number">0x740e0d8d</span>, <span class="tok-number">0xe75b1357</span>, <span class="tok-number">0xf8721671</span>, <span class="tok-number">0xaf537d5d</span>,</span> <span class="line" id="L265"> <span class="tok-number">0x4040cb08</span>, <span class="tok-number">0x4eb4e2cc</span>, <span class="tok-number">0x34d2466a</span>, <span class="tok-number">0x0115af84</span>,</span> <span class="line" id="L266"> <span class="tok-number">0xe1b00428</span>, <span class="tok-number">0x95983a1d</span>, <span class="tok-number">0x06b89fb4</span>, <span class="tok-number">0xce6ea048</span>,</span> <span class="line" id="L267"> <span class="tok-number">0x6f3f3b82</span>, <span class="tok-number">0x3520ab82</span>, <span class="tok-number">0x011a1d4b</span>, <span class="tok-number">0x277227f8</span>,</span> <span class="line" id="L268"> <span class="tok-number">0x611560b1</span>, <span class="tok-number">0xe7933fdc</span>, <span class="tok-number">0xbb3a792b</span>, <span class="tok-number">0x344525bd</span>,</span> <span class="line" id="L269"> <span class="tok-number">0xa08839e1</span>, <span class="tok-number">0x51ce794b</span>, <span class="tok-number">0x2f32c9b7</span>, <span class="tok-number">0xa01fbac9</span>,</span> <span class="line" id="L270"> <span class="tok-number">0xe01cc87e</span>, <span class="tok-number">0xbcc7d1f6</span>, <span class="tok-number">0xcf0111c3</span>, <span class="tok-number">0xa1e8aac7</span>,</span> <span class="line" id="L271"> <span class="tok-number">0x1a908749</span>, <span class="tok-number">0xd44fbd9a</span>, <span class="tok-number">0xd0dadecb</span>, <span class="tok-number">0xd50ada38</span>,</span> <span class="line" id="L272"> <span class="tok-number">0x0339c32a</span>, <span class="tok-number">0xc6913667</span>, <span class="tok-number">0x8df9317c</span>, <span class="tok-number">0xe0b12b4f</span>,</span> <span class="line" id="L273"> <span class="tok-number">0xf79e59b7</span>, <span class="tok-number">0x43f5bb3a</span>, <span class="tok-number">0xf2d519ff</span>, <span class="tok-number">0x27d9459c</span>,</span> <span class="line" id="L274"> <span class="tok-number">0xbf97222c</span>, <span class="tok-number">0x15e6fc2a</span>, <span class="tok-number">0x0f91fc71</span>, <span class="tok-number">0x9b941525</span>,</span> <span class="line" id="L275"> <span class="tok-number">0xfae59361</span>, <span class="tok-number">0xceb69ceb</span>, <span class="tok-number">0xc2a86459</span>, <span class="tok-number">0x12baa8d1</span>,</span> <span class="line" id="L276"> <span class="tok-number">0xb6c1075e</span>, <span class="tok-number">0xe3056a0c</span>, <span class="tok-number">0x10d25065</span>, <span class="tok-number">0xcb03a442</span>,</span> <span class="line" id="L277"> <span class="tok-number">0xe0ec6e0e</span>, <span class="tok-number">0x1698db3b</span>, <span class="tok-number">0x4c98a0be</span>, <span class="tok-number">0x3278e964</span>,</span> <span class="line" id="L278"> <span class="tok-number">0x9f1f9532</span>, <span class="tok-number">0xe0d392df</span>, <span class="tok-number">0xd3a0342b</span>, <span class="tok-number">0x8971f21e</span>,</span> <span class="line" id="L279"> <span class="tok-number">0x1b0a7441</span>, <span class="tok-number">0x4ba3348c</span>, <span class="tok-number">0xc5be7120</span>, <span class="tok-number">0xc37632d8</span>,</span> <span class="line" id="L280"> <span class="tok-number">0xdf359f8d</span>, <span class="tok-number">0x9b992f2e</span>, <span class="tok-number">0xe60b6f47</span>, <span class="tok-number">0x0fe3f11d</span>,</span> <span class="line" id="L281"> <span class="tok-number">0xe54cda54</span>, <span class="tok-number">0x1edad891</span>, <span class="tok-number">0xce6279cf</span>, <span class="tok-number">0xcd3e7e6f</span>,</span> <span class="line" id="L282"> <span class="tok-number">0x1618b166</span>, <span class="tok-number">0xfd2c1d05</span>, <span class="tok-number">0x848fd2c5</span>, <span class="tok-number">0xf6fb2299</span>,</span> <span class="line" id="L283"> <span class="tok-number">0xf523f357</span>, <span class="tok-number">0xa6327623</span>, <span class="tok-number">0x93a83531</span>, <span class="tok-number">0x56cccd02</span>,</span> <span class="line" id="L284"> <span class="tok-number">0xacf08162</span>, <span class="tok-number">0x5a75ebb5</span>, <span class="tok-number">0x6e163697</span>, <span class="tok-number">0x88d273cc</span>,</span> <span class="line" id="L285"> <span class="tok-number">0xde966292</span>, <span class="tok-number">0x81b949d0</span>, <span class="tok-number">0x4c50901b</span>, <span class="tok-number">0x71c65614</span>,</span> <span class="line" id="L286"> <span class="tok-number">0xe6c6c7bd</span>, <span class="tok-number">0x327a140a</span>, <span class="tok-number">0x45e1d006</span>, <span class="tok-number">0xc3f27b9a</span>,</span> <span class="line" id="L287"> <span class="tok-number">0xc9aa53fd</span>, <span class="tok-number">0x62a80f00</span>, <span class="tok-number">0xbb25bfe2</span>, <span class="tok-number">0x35bdd2f6</span>,</span> <span class="line" id="L288"> <span class="tok-number">0x71126905</span>, <span class="tok-number">0xb2040222</span>, <span class="tok-number">0xb6cbcf7c</span>, <span class="tok-number">0xcd769c2b</span>,</span> <span class="line" id="L289"> <span class="tok-number">0x53113ec0</span>, <span class="tok-number">0x1640e3d3</span>, <span class="tok-number">0x38abbd60</span>, <span class="tok-number">0x2547adf0</span>,</span> <span class="line" id="L290"> <span class="tok-number">0xba38209c</span>, <span class="tok-number">0xf746ce76</span>, <span class="tok-number">0x77afa1c5</span>, <span class="tok-number">0x20756060</span>,</span> <span class="line" id="L291"> <span class="tok-number">0x85cbfe4e</span>, <span class="tok-number">0x8ae88dd8</span>, <span class="tok-number">0x7aaaf9b0</span>, <span class="tok-number">0x4cf9aa7e</span>,</span> <span class="line" id="L292"> <span class="tok-number">0x1948c25c</span>, <span class="tok-number">0x02fb8a8c</span>, <span class="tok-number">0x01c36ae4</span>, <span class="tok-number">0xd6ebe1f9</span>,</span> <span class="line" id="L293"> <span class="tok-number">0x90d4f869</span>, <span class="tok-number">0xa65cdea0</span>, <span class="tok-number">0x3f09252d</span>, <span class="tok-number">0xc208e69f</span>,</span> <span class="line" id="L294"> <span class="tok-number">0xb74e6132</span>, <span class="tok-number">0xce77e25b</span>, <span class="tok-number">0x578fdfe3</span>, <span class="tok-number">0x3ac372e6</span>,</span> <span class="line" id="L295"> },</span> <span class="line" id="L296"> },</span> <span class="line" id="L297"> subkeys: [<span class="tok-number">18</span>]<span class="tok-type">u32</span> = [<span class="tok-number">18</span>]<span class="tok-type">u32</span>{</span> <span class="line" id="L298"> <span class="tok-number">0x243f6a88</span>, <span class="tok-number">0x85a308d3</span>, <span class="tok-number">0x13198a2e</span>,</span> <span class="line" id="L299"> <span class="tok-number">0x03707344</span>, <span class="tok-number">0xa4093822</span>, <span class="tok-number">0x299f31d0</span>,</span> <span class="line" id="L300"> <span class="tok-number">0x082efa98</span>, <span class="tok-number">0xec4e6c89</span>, <span class="tok-number">0x452821e6</span>,</span> <span class="line" id="L301"> <span class="tok-number">0x38d01377</span>, <span class="tok-number">0xbe5466cf</span>, <span class="tok-number">0x34e90c6c</span>,</span> <span class="line" id="L302"> <span class="tok-number">0xc0ac29b7</span>, <span class="tok-number">0xc97c50dd</span>, <span class="tok-number">0x3f84d5b5</span>,</span> <span class="line" id="L303"> <span class="tok-number">0xb5470917</span>, <span class="tok-number">0x9216d5d9</span>, <span class="tok-number">0x8979fb1b</span>,</span> <span class="line" id="L304"> },</span> <span class="line" id="L305"></span> <span class="line" id="L306"> <span class="tok-kw">fn</span> <span class="tok-fn">toWord</span>(data: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, current: <span class="tok-type">usize</span>) <span class="tok-type">u32</span> {</span> <span class="line" id="L307"> <span class="tok-kw">var</span> t: <span class="tok-type">u32</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L308"> <span class="tok-kw">var</span> j = current.;</span> <span class="line" id="L309"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L310"> <span class="tok-kw">while</span> (i < <span class="tok-number">4</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L311"> <span class="tok-kw">if</span> (j >= data.len) j = <span class="tok-number">0</span>;</span> <span class="line" id="L312"> t = (t << <span class="tok-number">8</span>) \| data[j];</span> <span class="line" id="L313"> j += <span class="tok-number">1</span>;</span> <span class="line" id="L314"> }</span> <span class="line" id="L315"> current.* = j;</span> <span class="line" id="L316"> <span class="tok-kw">return</span> t;</span> <span class="line" id="L317"> }</span> <span class="line" id="L318"></span> <span class="line" id="L319"> <span class="tok-kw">fn</span> <span class="tok-fn">expand0</span>(state: State, key: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L320"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L321"> <span class="tok-kw">var</span> j: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L322"> <span class="tok-kw">while</span> (i < state.subkeys.len) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L323"> state.subkeys[i] ^= toWord(key, &j);</span> <span class="line" id="L324"> }</span> <span class="line" id="L325"></span> <span class="line" id="L326"> <span class="tok-kw">var</span> halves = Halves{ .l = <span class="tok-number">0</span>, .r = <span class="tok-number">0</span> };</span> <span class="line" id="L327"> i = <span class="tok-number">0</span>;</span> <span class="line" id="L328"> <span class="tok-kw">while</span> (i < <span class="tok-number">18</span>) : (i += <span class="tok-number">2</span>) {</span> <span class="line" id="L329"> state.encipher(&halves);</span> <span class="line" id="L330"> state.subkeys[i] = halves.l;</span> <span class="line" id="L331"> state.subkeys[i + <span class="tok-number">1</span>] = halves.r;</span> <span class="line" id="L332"> }</span> <span class="line" id="L333"></span> <span class="line" id="L334"> i = <span class="tok-number">0</span>;</span> <span class="line" id="L335"> <span class="tok-kw">while</span> (i < <span class="tok-number">4</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L336"> <span class="tok-kw">var</span> k: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L337"> <span class="tok-kw">while</span> (k < <span class="tok-number">256</span>) : (k += <span class="tok-number">2</span>) {</span> <span class="line" id="L338"> state.encipher(&halves);</span> <span class="line" id="L339"> state.sboxes[i][k] = halves.l;</span> <span class="line" id="L340"> state.sboxes[i][k + <span class="tok-number">1</span>] = halves.r;</span> <span class="line" id="L341"> }</span> <span class="line" id="L342"> }</span> <span class="line" id="L343"> }</span> <span class="line" id="L344"></span> <span class="line" id="L345"> <span class="tok-kw">fn</span> <span class="tok-fn">expand</span>(state: State, data: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, key: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L346"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L347"> <span class="tok-kw">var</span> j: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L348"> <span class="tok-kw">while</span> (i < state.subkeys.len) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L349"> state.subkeys[i] ^= toWord(key, &j);</span> <span class="line" id="L350"> }</span> <span class="line" id="L351"></span> <span class="line" id="L352"> <span class="tok-kw">var</span> halves = Halves{ .l = <span class="tok-number">0</span>, .r = <span class="tok-number">0</span> };</span> <span class="line" id="L353"> i = <span class="tok-number">0</span>;</span> <span class="line" id="L354"> j = <span class="tok-number">0</span>;</span> <span class="line" id="L355"> <span class="tok-kw">while</span> (i < <span class="tok-number">18</span>) : (i += <span class="tok-number">2</span>) {</span> <span class="line" id="L356"> halves.l ^= toWord(data, &j);</span> <span class="line" id="L357"> halves.r ^= toWord(data, &j);</span> <span class="line" id="L358"> state.encipher(&halves);</span> <span class="line" id="L359"> state.subkeys[i] = halves.l;</span> <span class="line" id="L360"> state.subkeys[i + <span class="tok-number">1</span>] = halves.r;</span> <span class="line" id="L361"> }</span> <span class="line" id="L362"></span> <span class="line" id="L363"> i = <span class="tok-number">0</span>;</span> <span class="line" id="L364"> <span class="tok-kw">while</span> (i < <span class="tok-number">4</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L365"> <span class="tok-kw">var</span> k: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L366"> <span class="tok-kw">while</span> (k < <span class="tok-number">256</span>) : (k += <span class="tok-number">2</span>) {</span> <span class="line" id="L367"> halves.l ^= toWord(data, &j);</span> <span class="line" id="L368"> halves.r ^= toWord(data, &j);</span> <span class="line" id="L369"> state.encipher(&halves);</span> <span class="line" id="L370"> state.sboxes[i][k] = halves.l;</span> <span class="line" id="L371"> state.sboxes[i][k + <span class="tok-number">1</span>] = halves.r;</span> <span class="line" id="L372"> }</span> <span class="line" id="L373"> }</span> <span class="line" id="L374"> }</span> <span class="line" id="L375"></span> <span class="line" id="L376"> <span class="tok-kw">const</span> Halves = <span class="tok-kw">struct</span> { l: <span class="tok-type">u32</span>, r: <span class="tok-type">u32</span> };</span> <span class="line" id="L377"></span> <span class="line" id="L378"> <span class="tok-kw">fn</span> <span class="tok-fn">halfRound</span>(state: <span class="tok-kw">const</span> State, i: <span class="tok-type">u32</span>, j: <span class="tok-type">u32</span>, n: <span class="tok-type">usize</span>) <span class="tok-type">u32</span> {</span> <span class="line" id="L379"> <span class="tok-kw">var</span> r = state.sboxes[<span class="tok-number">0</span>][<span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>(j >> <span class="tok-number">24</span>))];</span> <span class="line" id="L380"> r +%= state.sboxes[<span class="tok-number">1</span>][<span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>(j >> <span class="tok-number">16</span>))];</span> <span class="line" id="L381"> r ^= state.sboxes[<span class="tok-number">2</span>][<span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>(j >> <span class="tok-number">8</span>))];</span> <span class="line" id="L382"> r +%= state.sboxes[<span class="tok-number">3</span>][<span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>(j))];</span> <span class="line" id="L383"> <span class="tok-kw">return</span> i ^ r ^ state.subkeys[n];</span> <span class="line" id="L384"> }</span> <span class="line" id="L385"></span> <span class="line" id="L386"> <span class="tok-kw">fn</span> <span class="tok-fn">encipher</span>(state: <span class="tok-kw">const</span> State, halves: Halves) <span class="tok-type">void</span> {</span> <span class="line" id="L387"> halves.l ^= state.subkeys[<span class="tok-number">0</span>];</span> <span class="line" id="L388"> <span class="tok-kw">comptime</span> <span class="tok-kw">var</span> i = <span class="tok-number">1</span>;</span> <span class="line" id="L389"> <span class="tok-kw">inline</span> <span class="tok-kw">while</span> (i < <span class="tok-number">16</span>) : (i += <span class="tok-number">2</span>) {</span> <span class="line" id="L390"> halves.r = state.halfRound(halves.r, halves.l, i);</span> <span class="line" id="L391"> halves.l = state.halfRound(halves.l, halves.r, i + <span class="tok-number">1</span>);</span> <span class="line" id="L392"> }</span> <span class="line" id="L393"> <span class="tok-kw">const</span> halves_last = Halves{ .l = halves.r ^ state.subkeys[i], .r = halves.l };</span> <span class="line" id="L394"> halves. = halves_last;</span> <span class="line" id="L395"> }</span> <span class="line" id="L396"></span> <span class="line" id="L397"> <span class="tok-kw">fn</span> <span class="tok-fn">encrypt</span>(state: <span class="tok-kw">const</span> State, data: []<span class="tok-type">u32</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L398"> debug.assert(data.len % <span class="tok-number">2</span> == <span class="tok-number">0</span>);</span> <span class="line" id="L399"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L400"> <span class="tok-kw">while</span> (i < data.len) : (i += <span class="tok-number">2</span>) {</span> <span class="line" id="L401"> <span class="tok-kw">var</span> halves = Halves{ .l = data[i], .r = data[i + <span class="tok-number">1</span>] };</span> <span class="line" id="L402"> state.encipher(&halves);</span> <span class="line" id="L403"> data[i] = halves.l;</span> <span class="line" id="L404"> data[i + <span class="tok-number">1</span>] = halves.r;</span> <span class="line" id="L405"> }</span> <span class="line" id="L406"> }</span> <span class="line" id="L407">};</span> <span class="line" id="L408"></span> <span class="line" id="L409"><span class="tok-comment">/// bcrypt parameters</span></span> <span class="line" id="L410"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Params = <span class="tok-kw">struct</span> {</span> <span class="line" id="L411"> <span class="tok-comment">/// log2 of the number of rounds</span></span> <span class="line" id="L412"> rounds_log: <span class="tok-type">u6</span>,</span> <span class="line" id="L413">};</span> <span class="line" id="L414"></span> <span class="line" id="L415"><span class="tok-comment">/// Compute a hash of a password using 2^rounds_log rounds of the bcrypt key stretching function.</span></span> <span class="line" id="L416"><span class="tok-comment">/// bcrypt is a computationally expensive and cache-hard function, explicitly designed to slow down exhaustive searches.</span></span> <span class="line" id="L417"><span class="tok-comment">///</span></span> <span class="line" id="L418"><span class="tok-comment">/// The function returns the hash as a `dk_length` byte array, that doesn't include anything besides the hash output.</span></span> <span class="line" id="L419"><span class="tok-comment">///</span></span> <span class="line" id="L420"><span class="tok-comment">/// For a generic key-derivation function, use `bcrypt.pbkdf()` instead.</span></span> <span class="line" id="L421"><span class="tok-comment">///</span></span> <span class="line" id="L422"><span class="tok-comment">/// IMPORTANT: by design, bcrypt silently truncates passwords to 72 bytes.</span></span> <span class="line" id="L423"><span class="tok-comment">/// If this is an issue for your application, use `bcryptWithoutTruncation` instead.</span></span> <span class="line" id="L424"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">bcrypt</span>(</span> <span class="line" id="L425"> password: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L426"> salt: [salt_length]<span class="tok-type">u8</span>,</span> <span class="line" id="L427"> params: Params,</span> <span class="line" id="L428">) [dk_length]<span class="tok-type">u8</span> {</span> <span class="line" id="L429"> <span class="tok-kw">var</span> state = State{};</span> <span class="line" id="L430"> <span class="tok-kw">var</span> password_buf: [<span class="tok-number">73</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L431"> <span class="tok-kw">const</span> trimmed_len = <span class="tok-builtin">@min</span>(password.len, password_buf.len - <span class="tok-number">1</span>);</span> <span class="line" id="L432"> <span class="tok-builtin">@memcpy</span>(password_buf[<span class="tok-number">0</span>..trimmed_len], password[<span class="tok-number">0</span>..trimmed_len]);</span> <span class="line" id="L433"> password_buf[trimmed_len] = <span class="tok-number">0</span>;</span> <span class="line" id="L434"> <span class="tok-kw">var</span> passwordZ = password_buf[<span class="tok-number">0</span> .. trimmed_len + <span class="tok-number">1</span>];</span> <span class="line" id="L435"> state.expand(salt[<span class="tok-number">0</span>..], passwordZ);</span> <span class="line" id="L436"></span> <span class="line" id="L437"> <span class="tok-kw">const</span> rounds: <span class="tok-type">u64</span> = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">1</span>) << params.rounds_log;</span> <span class="line" id="L438"> <span class="tok-kw">var</span> k: <span class="tok-type">u64</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L439"> <span class="tok-kw">while</span> (k < rounds) : (k += <span class="tok-number">1</span>) {</span> <span class="line" id="L440"> state.expand0(passwordZ);</span> <span class="line" id="L441"> state.expand0(salt[<span class="tok-number">0</span>..]);</span> <span class="line" id="L442"> }</span> <span class="line" id="L443"> utils.secureZero(<span class="tok-type">u8</span>, &password_buf);</span> <span class="line" id="L444"></span> <span class="line" id="L445"> <span class="tok-kw">var</span> cdata = [<span class="tok-number">6</span>]<span class="tok-type">u32</span>{ <span class="tok-number">0x4f727068</span>, <span class="tok-number">0x65616e42</span>, <span class="tok-number">0x65686f6c</span>, <span class="tok-number">0x64657253</span>, <span class="tok-number">0x63727944</span>, <span class="tok-number">0x6f756274</span> }; <span class="tok-comment">// "OrpheanBeholderScryDoubt"</span> </span> <span class="line" id="L446"> k = <span class="tok-number">0</span>;</span> <span class="line" id="L447"> <span class="tok-kw">while</span> (k < <span class="tok-number">64</span>) : (k += <span class="tok-number">1</span>) {</span> <span class="line" id="L448"> state.encrypt(&cdata);</span> <span class="line" id="L449"> }</span> <span class="line" id="L450"></span> <span class="line" id="L451"> <span class="tok-kw">var</span> ct: [ct_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L452"> <span class="tok-kw">for</span> (cdata, <span class="tok-number">0</span>..) \|c, i\| {</span> <span class="line" id="L453"> mem.writeIntBig(<span class="tok-type">u32</span>, ct[i <span class="tok-number">4</span> ..][<span class="tok-number">0</span>..<span class="tok-number">4</span>], c);</span> <span class="line" id="L454"> }</span> <span class="line" id="L455"> <span class="tok-kw">return</span> ct[<span class="tok-number">0</span>..dk_length].;</span> <span class="line" id="L456">}</span> <span class="line" id="L457"></span> <span class="line" id="L458"><span class="tok-comment">/// Compute a hash of a password using 2^rounds_log rounds of the bcrypt key stretching function.</span></span> <span class="line" id="L459"><span class="tok-comment">/// bcrypt is a computationally expensive and cache-hard function, explicitly designed to slow down exhaustive searches.</span></span> <span class="line" id="L460"><span class="tok-comment">///</span></span> <span class="line" id="L461"><span class="tok-comment">/// The function returns the hash as a `dk_length` byte array, that doesn't include anything besides the hash output.</span></span> <span class="line" id="L462"><span class="tok-comment">///</span></span> <span class="line" id="L463"><span class="tok-comment">/// For a generic key-derivation function, use `bcrypt.pbkdf()` instead.</span></span> <span class="line" id="L464"><span class="tok-comment">///</span></span> <span class="line" id="L465"><span class="tok-comment">/// This function is identical to `bcrypt`, except that it doesn't silently truncate passwords.</span></span> <span class="line" id="L466"><span class="tok-comment">/// Instead, passwords longer than 72 bytes are pre-hashed using HMAC-SHA512 before being passed to bcrypt.</span></span> <span class="line" id="L467"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">bcryptWithoutTruncation</span>(</span> <span class="line" id="L468"> password: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L469"> salt: [salt_length]<span class="tok-type">u8</span>,</span> <span class="line" id="L470"> params: Params,</span> <span class="line" id="L471">) [dk_length]<span class="tok-type">u8</span> {</span> <span class="line" id="L472"> <span class="tok-kw">if</span> (password.len <= <span class="tok-number">72</span>) {</span> <span class="line" id="L473"> <span class="tok-kw">return</span> bcrypt(password, salt, params);</span> <span class="line" id="L474"> }</span> <span class="line" id="L475"></span> <span class="line" id="L476"> <span class="tok-kw">var</span> pre_hash: [HmacSha512.mac_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L477"> HmacSha512.create(&pre_hash, password, &salt);</span> <span class="line" id="L478"></span> <span class="line" id="L479"> <span class="tok-kw">const</span> Encoder = crypt_format.Codec.Encoder;</span> <span class="line" id="L480"> <span class="tok-kw">var</span> pre_hash_b64: [Encoder.calcSize(pre_hash.len)]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L481"> _ = Encoder.encode(&pre_hash_b64, &pre_hash);</span> <span class="line" id="L482"></span> <span class="line" id="L483"> <span class="tok-kw">return</span> bcrypt(&pre_hash_b64, salt, params);</span> <span class="line" id="L484">}</span> <span class="line" id="L485"></span> <span class="line" id="L486"><span class="tok-kw">const</span> pbkdf_prf = <span class="tok-kw">struct</span> {</span> <span class="line" id="L487"> <span class="tok-kw">const</span> Self = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L488"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> mac_length = <span class="tok-number">32</span>;</span> <span class="line" id="L489"></span> <span class="line" id="L490"> hasher: Sha512,</span> <span class="line" id="L491"> sha2pass: [Sha512.digest_length]<span class="tok-type">u8</span>,</span> <span class="line" id="L492"></span> <span class="line" id="L493"> <span class="tok-kw">fn</span> <span class="tok-fn">create</span>(out: [mac_length]<span class="tok-type">u8</span>, msg: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, key: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L494"> <span class="tok-kw">var</span> ctx = Self.init(key);</span> <span class="line" id="L495"> ctx.update(msg);</span> <span class="line" id="L496"> ctx.final(out);</span> <span class="line" id="L497"> }</span> <span class="line" id="L498"></span> <span class="line" id="L499"> <span class="tok-kw">fn</span> <span class="tok-fn">init</span>(key: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) Self {</span> <span class="line" id="L500"> <span class="tok-kw">var</span> self: Self = <span class="tok-null">undefined</span>;</span> <span class="line" id="L501"> self.hasher = Sha512.init(.{});</span> <span class="line" id="L502"> Sha512.hash(key, &self.sha2pass, .{});</span> <span class="line" id="L503"> <span class="tok-kw">return</span> self;</span> <span class="line" id="L504"> }</span> <span class="line" id="L505"></span> <span class="line" id="L506"> <span class="tok-kw">fn</span> <span class="tok-fn">update</span>(self: Self, msg: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L507"> self.hasher.update(msg);</span> <span class="line" id="L508"> }</span> <span class="line" id="L509"></span> <span class="line" id="L510"> <span class="tok-kw">fn</span> <span class="tok-fn">final</span>(self: Self, out: [mac_length]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L511"> <span class="tok-kw">var</span> sha2salt: [Sha512.digest_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L512"> self.hasher.final(&sha2salt);</span> <span class="line" id="L513"> out. = hash(self.sha2pass, sha2salt);</span> <span class="line" id="L514"> }</span> <span class="line" id="L515"></span> <span class="line" id="L516"> <span class="tok-comment">/// Matches OpenBSD function</span></span> <span class="line" id="L517"> <span class="tok-comment">/// https://github.com/openbsd/src/blob/6df1256b7792691e66c2ed9d86a8c103069f9e34/lib/libutil/bcrypt_pbkdf.c#L98</span></span> <span class="line" id="L518"> <span class="tok-kw">fn</span> <span class="tok-fn">hash</span>(sha2pass: [Sha512.digest_length]<span class="tok-type">u8</span>, sha2salt: [Sha512.digest_length]<span class="tok-type">u8</span>) [<span class="tok-number">32</span>]<span class="tok-type">u8</span> {</span> <span class="line" id="L519"> <span class="tok-kw">var</span> cdata: [<span class="tok-number">8</span>]<span class="tok-type">u32</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L520"> {</span> <span class="line" id="L521"> <span class="tok-kw">const</span> ciphertext = <span class="tok-str">"OxychromaticBlowfishSwatDynamite"</span>;</span> <span class="line" id="L522"> <span class="tok-kw">var</span> j: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L523"> <span class="tok-kw">for</span> (cdata) \|v\| {</span> <span class="line" id="L524"> v. = State.toWord(ciphertext, &j);</span> <span class="line" id="L525"> }</span> <span class="line" id="L526"> }</span> <span class="line" id="L527"></span> <span class="line" id="L528"> <span class="tok-kw">var</span> state = State{};</span> <span class="line" id="L529"></span> <span class="line" id="L530"> { <span class="tok-comment">// key expansion</span> </span> <span class="line" id="L531"> state.expand(&sha2salt, &sha2pass);</span> <span class="line" id="L532"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L533"> <span class="tok-kw">while</span> (i < <span class="tok-number">64</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L534"> state.expand0(&sha2salt);</span> <span class="line" id="L535"> state.expand0(&sha2pass);</span> <span class="line" id="L536"> }</span> <span class="line" id="L537"> }</span> <span class="line" id="L538"></span> <span class="line" id="L539"> { <span class="tok-comment">// encryption</span> </span> <span class="line" id="L540"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L541"> <span class="tok-kw">while</span> (i < <span class="tok-number">64</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L542"> state.encrypt(&cdata);</span> <span class="line" id="L543"> }</span> <span class="line" id="L544"> }</span> <span class="line" id="L545"></span> <span class="line" id="L546"> <span class="tok-comment">// copy out</span> </span> <span class="line" id="L547"> <span class="tok-kw">var</span> out: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L548"> <span class="tok-kw">for</span> (cdata, <span class="tok-number">0</span>..) \|v, i\| {</span> <span class="line" id="L549"> std.mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">4</span> * i ..][<span class="tok-number">0</span>..<span class="tok-number">4</span>], v);</span> <span class="line" id="L550"> }</span> <span class="line" id="L551"></span> <span class="line" id="L552"> <span class="tok-comment">// zap</span> </span> <span class="line" id="L553"> crypto.utils.secureZero(<span class="tok-type">u32</span>, &cdata);</span> <span class="line" id="L554"> crypto.utils.secureZero(State, <span class="tok-builtin">@as</span>([<span class="tok-number">1</span>]State, &state));</span> <span class="line" id="L555"></span> <span class="line" id="L556"> <span class="tok-kw">return</span> out;</span> <span class="line" id="L557"> }</span> <span class="line" id="L558">};</span> <span class="line" id="L559"></span> <span class="line" id="L560"><span class="tok-comment">/// bcrypt-pbkdf is a key derivation function based on bcrypt.</span></span> <span class="line" id="L561"><span class="tok-comment">/// This is the function used in OpenSSH to derive encryption keys from passphrases.</span></span> <span class="line" id="L562"><span class="tok-comment">///</span></span> <span class="line" id="L563"><span class="tok-comment">/// This implementation is compatible with the OpenBSD implementation (https://github.com/openbsd/src/blob/master/lib/libutil/bcrypt_pbkdf.c).</span></span> <span class="line" id="L564"><span class="tok-comment">///</span></span> <span class="line" id="L565"><span class="tok-comment">/// Unlike the password hashing function `bcrypt`, this function doesn't silently truncate passwords longer than 72 bytes.</span></span> <span class="line" id="L566"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">pbkdf</span>(pass: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, salt: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, key: []<span class="tok-type">u8</span>, rounds: <span class="tok-type">u32</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L567"> <span class="tok-kw">try</span> crypto.pwhash.pbkdf2(key, pass, salt, rounds, pbkdf_prf);</span> <span class="line" id="L568">}</span> <span class="line" id="L569"></span> <span class="line" id="L570"><span class="tok-kw">const</span> crypt_format = <span class="tok-kw">struct</span> {</span> <span class="line" id="L571"> <span class="tok-comment">/// String prefix for bcrypt</span></span> <span class="line" id="L572"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> prefix = <span class="tok-str">"$2"</span>;</span> <span class="line" id="L573"></span> <span class="line" id="L574"> <span class="tok-comment">// bcrypt has its own variant of base64, with its own alphabet and no padding</span> </span> <span class="line" id="L575"> <span class="tok-kw">const</span> bcrypt_alphabet = <span class="tok-str">"./ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"</span>.;</span> <span class="line" id="L576"> <span class="tok-kw">const</span> Codec = <span class="tok-kw">struct</span> { Encoder: base64.Base64Encoder, Decoder: base64.Base64Decoder }{</span> <span class="line" id="L577"> .Encoder = base64.Base64Encoder.init(bcrypt_alphabet, <span class="tok-null">null</span>),</span> <span class="line" id="L578"> .Decoder = base64.Base64Decoder.init(bcrypt_alphabet, <span class="tok-null">null</span>),</span> <span class="line" id="L579"> };</span> <span class="line" id="L580"></span> <span class="line" id="L581"> <span class="tok-kw">fn</span> <span class="tok-fn">strHashInternal</span>(</span> <span class="line" id="L582"> password: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L583"> salt: [salt_length]<span class="tok-type">u8</span>,</span> <span class="line" id="L584"> params: Params,</span> <span class="line" id="L585"> silently_truncate_password: <span class="tok-type">bool</span>,</span> <span class="line" id="L586"> ) [hash_length]<span class="tok-type">u8</span> {</span> <span class="line" id="L587"> <span class="tok-kw">var</span> dk = <span class="tok-kw">if</span> (silently_truncate_password) bcrypt(password, salt, params) <span class="tok-kw">else</span> bcryptWithoutTruncation(password, salt, params);</span> <span class="line" id="L588"></span> <span class="line" id="L589"> <span class="tok-kw">var</span> salt_str: [salt_str_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L590"> _ = Codec.Encoder.encode(salt_str[<span class="tok-number">0</span>..], salt[<span class="tok-number">0</span>..]);</span> <span class="line" id="L591"></span> <span class="line" id="L592"> <span class="tok-kw">var</span> ct_str: [ct_str_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L593"> _ = Codec.Encoder.encode(ct_str[<span class="tok-number">0</span>..], dk[<span class="tok-number">0</span>..]);</span> <span class="line" id="L594"></span> <span class="line" id="L595"> <span class="tok-kw">var</span> s_buf: [hash_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L596"> <span class="tok-kw">const</span> s = fmt.bufPrint(</span> <span class="line" id="L597"> s_buf[<span class="tok-number">0</span>..],</span> <span class="line" id="L598"> <span class="tok-str">"{s}b${d}{d}${s}{s}"</span>,</span> <span class="line" id="L599"> .{ prefix, params.rounds_log / <span class="tok-number">10</span>, params.rounds_log % <span class="tok-number">10</span>, salt_str, ct_str },</span> <span class="line" id="L600"> ) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L601"> debug.assert(s.len == s_buf.len);</span> <span class="line" id="L602"> <span class="tok-kw">return</span> s_buf;</span> <span class="line" id="L603"> }</span> <span class="line" id="L604">};</span> <span class="line" id="L605"></span> <span class="line" id="L606"><span class="tok-comment">/// Hash and verify passwords using the PHC format.</span></span> <span class="line" id="L607"><span class="tok-kw">const</span> PhcFormatHasher = <span class="tok-kw">struct</span> {</span> <span class="line" id="L608"> <span class="tok-kw">const</span> alg_id = <span class="tok-str">"bcrypt"</span>;</span> <span class="line" id="L609"> <span class="tok-kw">const</span> BinValue = phc_format.BinValue;</span> <span class="line" id="L610"></span> <span class="line" id="L611"> <span class="tok-kw">const</span> HashResult = <span class="tok-kw">struct</span> {</span> <span class="line" id="L612"> alg_id: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L613"> r: <span class="tok-type">u6</span>,</span> <span class="line" id="L614"> salt: BinValue(salt_length),</span> <span class="line" id="L615"> hash: BinValue(dk_length),</span> <span class="line" id="L616"> };</span> <span class="line" id="L617"></span> <span class="line" id="L618"> <span class="tok-comment">/// Return a non-deterministic hash of the password encoded as a PHC-format string</span></span> <span class="line" id="L619"> <span class="tok-kw">fn</span> <span class="tok-fn">create</span>(</span> <span class="line" id="L620"> password: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L621"> params: Params,</span> <span class="line" id="L622"> silently_truncate_password: <span class="tok-type">bool</span>,</span> <span class="line" id="L623"> buf: []<span class="tok-type">u8</span>,</span> <span class="line" id="L624"> ) HasherError![]<span class="tok-kw">const</span> <span class="tok-type">u8</span> {</span> <span class="line" id="L625"> <span class="tok-kw">var</span> salt: [salt_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L626"> crypto.random.bytes(&salt);</span> <span class="line" id="L627"></span> <span class="line" id="L628"> <span class="tok-kw">const</span> hash = <span class="tok-kw">if</span> (silently_truncate_password) bcrypt(password, salt, params) <span class="tok-kw">else</span> bcryptWithoutTruncation(password, salt, params);</span> <span class="line" id="L629"></span> <span class="line" id="L630"> <span class="tok-kw">return</span> phc_format.serialize(HashResult{</span> <span class="line" id="L631"> .alg_id = alg_id,</span> <span class="line" id="L632"> .r = params.rounds_log,</span> <span class="line" id="L633"> .salt = <span class="tok-kw">try</span> BinValue(salt_length).fromSlice(&salt),</span> <span class="line" id="L634"> .hash = <span class="tok-kw">try</span> BinValue(dk_length).fromSlice(&hash),</span> <span class="line" id="L635"> }, buf);</span> <span class="line" id="L636"> }</span> <span class="line" id="L637"></span> <span class="line" id="L638"> <span class="tok-comment">/// Verify a password against a PHC-format encoded string</span></span> <span class="line" id="L639"> <span class="tok-kw">fn</span> <span class="tok-fn">verify</span>(</span> <span class="line" id="L640"> str: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L641"> password: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L642"> silently_truncate_password: <span class="tok-type">bool</span>,</span> <span class="line" id="L643"> ) HasherError!<span class="tok-type">void</span> {</span> <span class="line" id="L644"> <span class="tok-kw">const</span> hash_result = <span class="tok-kw">try</span> phc_format.deserialize(HashResult, str);</span> <span class="line" id="L645"></span> <span class="line" id="L646"> <span class="tok-kw">if</span> (!mem.eql(<span class="tok-type">u8</span>, hash_result.alg_id, alg_id)) <span class="tok-kw">return</span> HasherError.PasswordVerificationFailed;</span> <span class="line" id="L647"> <span class="tok-kw">if</span> (hash_result.salt.len != salt_length <span class="tok-kw">or</span> hash_result.hash.len != dk_length)</span> <span class="line" id="L648"> <span class="tok-kw">return</span> HasherError.InvalidEncoding;</span> <span class="line" id="L649"></span> <span class="line" id="L650"> <span class="tok-kw">const</span> params = Params{ .rounds_log = hash_result.r };</span> <span class="line" id="L651"> <span class="tok-kw">const</span> hash = <span class="tok-kw">if</span> (silently_truncate_password) bcrypt(password, hash_result.salt.buf, params) <span class="tok-kw">else</span> bcryptWithoutTruncation(password, hash_result.salt.buf, params);</span> <span class="line" id="L652"> <span class="tok-kw">const</span> expected_hash = hash_result.hash.constSlice();</span> <span class="line" id="L653"></span> <span class="line" id="L654"> <span class="tok-kw">if</span> (!mem.eql(<span class="tok-type">u8</span>, &hash, expected_hash)) <span class="tok-kw">return</span> HasherError.PasswordVerificationFailed;</span> <span class="line" id="L655"> }</span> <span class="line" id="L656">};</span> <span class="line" id="L657"></span> <span class="line" id="L658"><span class="tok-comment">/// Hash and verify passwords using the modular crypt format.</span></span> <span class="line" id="L659"><span class="tok-kw">const</span> CryptFormatHasher = <span class="tok-kw">struct</span> {</span> <span class="line" id="L660"> <span class="tok-comment">/// Length of a string returned by the create() function</span></span> <span class="line" id="L661"> <span class="tok-kw">const</span> pwhash_str_length: <span class="tok-type">usize</span> = hash_length;</span> <span class="line" id="L662"></span> <span class="line" id="L663"> <span class="tok-comment">/// Return a non-deterministic hash of the password encoded into the modular crypt format</span></span> <span class="line" id="L664"> <span class="tok-kw">fn</span> <span class="tok-fn">create</span>(</span> <span class="line" id="L665"> password: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L666"> params: Params,</span> <span class="line" id="L667"> silently_truncate_password: <span class="tok-type">bool</span>,</span> <span class="line" id="L668"> buf: []<span class="tok-type">u8</span>,</span> <span class="line" id="L669"> ) HasherError![]<span class="tok-kw">const</span> <span class="tok-type">u8</span> {</span> <span class="line" id="L670"> <span class="tok-kw">if</span> (buf.len < pwhash_str_length) <span class="tok-kw">return</span> HasherError.NoSpaceLeft;</span> <span class="line" id="L671"></span> <span class="line" id="L672"> <span class="tok-kw">var</span> salt: [salt_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L673"> crypto.random.bytes(&salt);</span> <span class="line" id="L674"></span> <span class="line" id="L675"> <span class="tok-kw">const</span> hash = crypt_format.strHashInternal(password, salt, params, silently_truncate_password);</span> <span class="line" id="L676"> <span class="tok-builtin">@memcpy</span>(buf[<span class="tok-number">0</span>..hash.len], &hash);</span> <span class="line" id="L677"></span> <span class="line" id="L678"> <span class="tok-kw">return</span> buf[<span class="tok-number">0</span>..pwhash_str_length];</span> <span class="line" id="L679"> }</span> <span class="line" id="L680"></span> <span class="line" id="L681"> <span class="tok-comment">/// Verify a password against a string in modular crypt format</span></span> <span class="line" id="L682"> <span class="tok-kw">fn</span> <span class="tok-fn">verify</span>(</span> <span class="line" id="L683"> str: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L684"> password: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L685"> silently_truncate_password: <span class="tok-type">bool</span>,</span> <span class="line" id="L686"> ) HasherError!<span class="tok-type">void</span> {</span> <span class="line" id="L687"> <span class="tok-kw">if</span> (str.len != pwhash_str_length <span class="tok-kw">or</span> str[<span class="tok-number">3</span>] != <span class="tok-str">'$'</span> <span class="tok-kw">or</span> str[<span class="tok-number">6</span>] != <span class="tok-str">'$'</span>)</span> <span class="line" id="L688"> <span class="tok-kw">return</span> HasherError.InvalidEncoding;</span> <span class="line" id="L689"></span> <span class="line" id="L690"> <span class="tok-kw">const</span> rounds_log_str = str[<span class="tok-number">4</span>..][<span class="tok-number">0</span>..<span class="tok-number">2</span>];</span> <span class="line" id="L691"> <span class="tok-kw">const</span> rounds_log = fmt.parseInt(<span class="tok-type">u6</span>, rounds_log_str[<span class="tok-number">0</span>..], <span class="tok-number">10</span>) <span class="tok-kw">catch</span></span> <span class="line" id="L692"> <span class="tok-kw">return</span> HasherError.InvalidEncoding;</span> <span class="line" id="L693"></span> <span class="line" id="L694"> <span class="tok-kw">const</span> salt_str = str[<span class="tok-number">7</span>..][<span class="tok-number">0</span>..salt_str_length];</span> <span class="line" id="L695"> <span class="tok-kw">var</span> salt: [salt_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L696"> crypt_format.Codec.Decoder.decode(salt[<span class="tok-number">0</span>..], salt_str[<span class="tok-number">0</span>..]) <span class="tok-kw">catch</span> <span class="tok-kw">return</span> HasherError.InvalidEncoding;</span> <span class="line" id="L697"></span> <span class="line" id="L698"> <span class="tok-kw">const</span> wanted_s = crypt_format.strHashInternal(password, salt, .{ .rounds_log = rounds_log }, silently_truncate_password);</span> <span class="line" id="L699"> <span class="tok-kw">if</span> (!mem.eql(<span class="tok-type">u8</span>, wanted_s[<span class="tok-number">0</span>..], str[<span class="tok-number">0</span>..])) <span class="tok-kw">return</span> HasherError.PasswordVerificationFailed;</span> <span class="line" id="L700"> }</span> <span class="line" id="L701">};</span> <span class="line" id="L702"></span> <span class="line" id="L703"><span class="tok-comment">/// Options for hashing a password.</span></span> <span class="line" id="L704"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> HashOptions = <span class="tok-kw">struct</span> {</span> <span class="line" id="L705"> <span class="tok-comment">/// For `bcrypt`, that can be left to `null`.</span></span> <span class="line" id="L706"> allocator: ?mem.Allocator = <span class="tok-null">null</span>,</span> <span class="line" id="L707"> <span class="tok-comment">/// Internal bcrypt parameters.</span></span> <span class="line" id="L708"> params: Params,</span> <span class="line" id="L709"> <span class="tok-comment">/// Encoding to use for the output of the hash function.</span></span> <span class="line" id="L710"> encoding: pwhash.Encoding,</span> <span class="line" id="L711"> <span class="tok-comment">/// Whether to silently truncate the password to 72 bytes, or pre-hash the password when it is longer.</span></span> <span class="line" id="L712"> <span class="tok-comment">/// The default is `true`, for compatibility with the original bcrypt implementation.</span></span> <span class="line" id="L713"> silently_truncate_password: <span class="tok-type">bool</span> = <span class="tok-null">true</span>,</span> <span class="line" id="L714">};</span> <span class="line" id="L715"></span> <span class="line" id="L716"><span class="tok-comment">/// Compute a hash of a password using 2^rounds_log rounds of the bcrypt key stretching function.</span></span> <span class="line" id="L717"><span class="tok-comment">/// bcrypt is a computationally expensive and cache-hard function, explicitly designed to slow down exhaustive searches.</span></span> <span class="line" id="L718"><span class="tok-comment">///</span></span> <span class="line" id="L719"><span class="tok-comment">/// The function returns a string that includes all the parameters required for verification.</span></span> <span class="line" id="L720"><span class="tok-comment">///</span></span> <span class="line" id="L721"><span class="tok-comment">/// IMPORTANT: by design, bcrypt silently truncates passwords to 72 bytes.</span></span> <span class="line" id="L722"><span class="tok-comment">/// If this is an issue for your application, set the `silently_truncate_password` option to `false`.</span></span> <span class="line" id="L723"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">strHash</span>(</span> <span class="line" id="L724"> password: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L725"> options: HashOptions,</span> <span class="line" id="L726"> out: []<span class="tok-type">u8</span>,</span> <span class="line" id="L727">) Error![]<span class="tok-kw">const</span> <span class="tok-type">u8</span> {</span> <span class="line" id="L728"> <span class="tok-kw">switch</span> (options.encoding) {</span> <span class="line" id="L729"> .phc => <span class="tok-kw">return</span> PhcFormatHasher.create(password, options.params, options.silently_truncate_password, out),</span> <span class="line" id="L730"> .crypt => <span class="tok-kw">return</span> CryptFormatHasher.create(password, options.params, options.silently_truncate_password, out),</span> <span class="line" id="L731"> }</span> <span class="line" id="L732">}</span> <span class="line" id="L733"></span> <span class="line" id="L734"><span class="tok-comment">/// Options for hash verification.</span></span> <span class="line" id="L735"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> VerifyOptions = <span class="tok-kw">struct</span> {</span> <span class="line" id="L736"> <span class="tok-comment">/// For `bcrypt`, that can be left to `null`.</span></span> <span class="line" id="L737"> allocator: ?mem.Allocator = <span class="tok-null">null</span>,</span> <span class="line" id="L738"> <span class="tok-comment">/// Whether to silently truncate the password to 72 bytes, or pre-hash the password when it is longer.</span></span> <span class="line" id="L739"> silently_truncate_password: <span class="tok-type">bool</span> = <span class="tok-null">false</span>,</span> <span class="line" id="L740">};</span> <span class="line" id="L741"></span> <span class="line" id="L742"><span class="tok-comment">/// Verify that a previously computed hash is valid for a given password.</span></span> <span class="line" id="L743"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">strVerify</span>(</span> <span class="line" id="L744"> str: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L745"> password: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L746"> options: VerifyOptions,</span> <span class="line" id="L747">) Error!<span class="tok-type">void</span> {</span> <span class="line" id="L748"> <span class="tok-kw">if</span> (mem.startsWith(<span class="tok-type">u8</span>, str, crypt_format.prefix)) {</span> <span class="line" id="L749"> <span class="tok-kw">return</span> CryptFormatHasher.verify(str, password, options.silently_truncate_password);</span> <span class="line" id="L750"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L751"> <span class="tok-kw">return</span> PhcFormatHasher.verify(str, password, options.silently_truncate_password);</span> <span class="line" id="L752"> }</span> <span class="line" id="L753">}</span> <span class="line" id="L754"></span> <span class="line" id="L755"><span class="tok-kw">test</span> <span class="tok-str">"bcrypt codec"</span> {</span> <span class="line" id="L756"> <span class="tok-kw">var</span> salt: [salt_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L757"> crypto.random.bytes(&salt);</span> <span class="line" id="L758"> <span class="tok-kw">var</span> salt_str: [salt_str_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L759"> _ = crypt_format.Codec.Encoder.encode(salt_str[<span class="tok-number">0</span>..], salt[<span class="tok-number">0</span>..]);</span> <span class="line" id="L760"> <span class="tok-kw">var</span> salt2: [salt_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L761"> <span class="tok-kw">try</span> crypt_format.Codec.Decoder.decode(salt2[<span class="tok-number">0</span>..], salt_str[<span class="tok-number">0</span>..]);</span> <span class="line" id="L762"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, salt[<span class="tok-number">0</span>..], salt2[<span class="tok-number">0</span>..]);</span> <span class="line" id="L763">}</span> <span class="line" id="L764"></span> <span class="line" id="L765"><span class="tok-kw">test</span> <span class="tok-str">"bcrypt crypt format"</span> {</span> <span class="line" id="L766"> <span class="tok-kw">var</span> hash_options = HashOptions{</span> <span class="line" id="L767"> .params = .{ .rounds_log = <span class="tok-number">5</span> },</span> <span class="line" id="L768"> .encoding = .crypt,</span> <span class="line" id="L769"> .silently_truncate_password = <span class="tok-null">false</span>,</span> <span class="line" id="L770"> };</span> <span class="line" id="L771"> <span class="tok-kw">var</span> verify_options = VerifyOptions{};</span> <span class="line" id="L772"></span> <span class="line" id="L773"> <span class="tok-kw">var</span> buf: [hash_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L774"> <span class="tok-kw">const</span> s = <span class="tok-kw">try</span> strHash(<span class="tok-str">"password"</span>, hash_options, &buf);</span> <span class="line" id="L775"></span> <span class="line" id="L776"> <span class="tok-kw">try</span> testing.expect(mem.startsWith(<span class="tok-type">u8</span>, s, crypt_format.prefix));</span> <span class="line" id="L777"> <span class="tok-kw">try</span> strVerify(s, <span class="tok-str">"password"</span>, verify_options);</span> <span class="line" id="L778"> <span class="tok-kw">try</span> testing.expectError(</span> <span class="line" id="L779"> <span class="tok-kw">error</span>.PasswordVerificationFailed,</span> <span class="line" id="L780"> strVerify(s, <span class="tok-str">"invalid password"</span>, verify_options),</span> <span class="line" id="L781"> );</span> <span class="line" id="L782"></span> <span class="line" id="L783"> <span class="tok-kw">var</span> long_buf: [hash_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L784"> <span class="tok-kw">var</span> long_s = <span class="tok-kw">try</span> strHash(<span class="tok-str">"password"</span> <span class="tok-number">100</span>, hash_options, &long_buf);</span> <span class="line" id="L785"></span> <span class="line" id="L786"> <span class="tok-kw">try</span> testing.expect(mem.startsWith(<span class="tok-type">u8</span>, long_s, crypt_format.prefix));</span> <span class="line" id="L787"> <span class="tok-kw">try</span> strVerify(long_s, <span class="tok-str">"password"</span> <span class="tok-number">100</span>, verify_options);</span> <span class="line" id="L788"> <span class="tok-kw">try</span> testing.expectError(</span> <span class="line" id="L789"> <span class="tok-kw">error</span>.PasswordVerificationFailed,</span> <span class="line" id="L790"> strVerify(long_s, <span class="tok-str">"password"</span> <span class="tok-number">101</span>, verify_options),</span> <span class="line" id="L791"> );</span> <span class="line" id="L792"></span> <span class="line" id="L793"> hash_options.silently_truncate_password = <span class="tok-null">true</span>;</span> <span class="line" id="L794"> verify_options.silently_truncate_password = <span class="tok-null">true</span>;</span> <span class="line" id="L795"> long_s = <span class="tok-kw">try</span> strHash(<span class="tok-str">"password"</span> <span class="tok-number">100</span>, hash_options, &long_buf);</span> <span class="line" id="L796"> <span class="tok-kw">try</span> strVerify(long_s, <span class="tok-str">"password"</span> ** <span class="tok-number">101</span>, verify_options);</span> <span class="line" id="L797"></span> <span class="line" id="L798"> <span class="tok-kw">try</span> strVerify(</span> <span class="line" id="L799"> <span class="tok-str">"$2b$08$WUQKyBCaKpziCwUXHiMVvu40dYVjkTxtWJlftl0PpjY2BxWSvFIEe"</span>,</span> <span class="line" id="L800"> <span class="tok-str">"The devil himself"</span>,</span> <span class="line" id="L801"> verify_options,</span> <span class="line" id="L802"> );</span> <span class="line" id="L803">}</span> <span class="line" id="L804"></span> <span class="line" id="L805"><span class="tok-kw">test</span> <span class="tok-str">"bcrypt phc format"</span> {</span> <span class="line" id="L806"> <span class="tok-kw">var</span> hash_options = HashOptions{</span> <span class="line" id="L807"> .params = .{ .rounds_log = <span class="tok-number">5</span> },</span> <span class="line" id="L808"> .encoding = .phc,</span> <span class="line" id="L809"> .silently_truncate_password = <span class="tok-null">false</span>,</span> <span class="line" id="L810"> };</span> <span class="line" id="L811"> <span class="tok-kw">var</span> verify_options = VerifyOptions{};</span> <span class="line" id="L812"> <span class="tok-kw">const</span> prefix = <span class="tok-str">"$bcrypt$"</span>;</span> <span class="line" id="L813"></span> <span class="line" id="L814"> <span class="tok-kw">var</span> buf: [hash_length * <span class="tok-number">2</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L815"> <span class="tok-kw">const</span> s = <span class="tok-kw">try</span> strHash(<span class="tok-str">"password"</span>, hash_options, &buf);</span> <span class="line" id="L816"></span> <span class="line" id="L817"> <span class="tok-kw">try</span> testing.expect(mem.startsWith(<span class="tok-type">u8</span>, s, prefix));</span> <span class="line" id="L818"> <span class="tok-kw">try</span> strVerify(s, <span class="tok-str">"password"</span>, verify_options);</span> <span class="line" id="L819"> <span class="tok-kw">try</span> testing.expectError(</span> <span class="line" id="L820"> <span class="tok-kw">error</span>.PasswordVerificationFailed,</span> <span class="line" id="L821"> strVerify(s, <span class="tok-str">"invalid password"</span>, verify_options),</span> <span class="line" id="L822"> );</span> <span class="line" id="L823"></span> <span class="line" id="L824"> <span class="tok-kw">var</span> long_buf: [hash_length * <span class="tok-number">2</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L825"> <span class="tok-kw">var</span> long_s = <span class="tok-kw">try</span> strHash(<span class="tok-str">"password"</span> <span class="tok-number">100</span>, hash_options, &long_buf);</span> <span class="line" id="L826"></span> <span class="line" id="L827"> <span class="tok-kw">try</span> testing.expect(mem.startsWith(<span class="tok-type">u8</span>, long_s, prefix));</span> <span class="line" id="L828"> <span class="tok-kw">try</span> strVerify(long_s, <span class="tok-str">"password"</span> <span class="tok-number">100</span>, verify_options);</span> <span class="line" id="L829"> <span class="tok-kw">try</span> testing.expectError(</span> <span class="line" id="L830"> <span class="tok-kw">error</span>.PasswordVerificationFailed,</span> <span class="line" id="L831"> strVerify(long_s, <span class="tok-str">"password"</span> <span class="tok-number">101</span>, verify_options),</span> <span class="line" id="L832"> );</span> <span class="line" id="L833"></span> <span class="line" id="L834"> hash_options.silently_truncate_password = <span class="tok-null">true</span>;</span> <span class="line" id="L835"> verify_options.silently_truncate_password = <span class="tok-null">true</span>;</span> <span class="line" id="L836"> long_s = <span class="tok-kw">try</span> strHash(<span class="tok-str">"password"</span> <span class="tok-number">100</span>, hash_options, &long_buf);</span> <span class="line" id="L837"> <span class="tok-kw">try</span> strVerify(long_s, <span class="tok-str">"password"</span> ** <span class="tok-number">101</span>, verify_options);</span> <span class="line" id="L838"></span> <span class="line" id="L839"> <span class="tok-kw">try</span> strVerify(</span> <span class="line" id="L840"> <span class="tok-str">"$bcrypt$r=5$2NopntlgE2lX3cTwr4qz8A$r3T7iKYQNnY4hAhGjk9RmuyvgrYJZwc"</span>,</span> <span class="line" id="L841"> <span class="tok-str">"The devil himself"</span>,</span> <span class="line" id="L842"> verify_options,</span> <span class="line" id="L843"> );</span> <span class="line" id="L844">}</span> <span class="line" id="L845"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/crypto/sha3.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/sha3.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> assert = std.debug.assert;</span> <span class="line" id="L3"><span class="tok-kw">const</span> math = std.math;</span> <span class="line" id="L4"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L5"></span> <span class="line" id="L6"><span class="tok-kw">const</span> KeccakState = std.crypto.core.keccak.State;</span> <span class="line" id="L7"></span> <span class="line" id="L8"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Sha3_224 = Keccak(<span class="tok-number">1600</span>, <span class="tok-number">224</span>, <span class="tok-number">0x06</span>, <span class="tok-number">24</span>);</span> <span class="line" id="L9"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Sha3_256 = Keccak(<span class="tok-number">1600</span>, <span class="tok-number">256</span>, <span class="tok-number">0x06</span>, <span class="tok-number">24</span>);</span> <span class="line" id="L10"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Sha3_384 = Keccak(<span class="tok-number">1600</span>, <span class="tok-number">384</span>, <span class="tok-number">0x06</span>, <span class="tok-number">24</span>);</span> <span class="line" id="L11"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Sha3_512 = Keccak(<span class="tok-number">1600</span>, <span class="tok-number">512</span>, <span class="tok-number">0x06</span>, <span class="tok-number">24</span>);</span> <span class="line" id="L12"></span> <span class="line" id="L13"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Keccak256 = Keccak(<span class="tok-number">1600</span>, <span class="tok-number">256</span>, <span class="tok-number">0x01</span>, <span class="tok-number">24</span>);</span> <span class="line" id="L14"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Keccak512 = Keccak(<span class="tok-number">1600</span>, <span class="tok-number">512</span>, <span class="tok-number">0x01</span>, <span class="tok-number">24</span>);</span> <span class="line" id="L15"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Keccak_256 = <span class="tok-builtin">@compileError</span>(<span class="tok-str">"Deprecated: use `Keccak256` instead"</span>);</span> <span class="line" id="L16"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Keccak_512 = <span class="tok-builtin">@compileError</span>(<span class="tok-str">"Deprecated: use `Keccak512` instead"</span>);</span> <span class="line" id="L17"></span> <span class="line" id="L18"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Shake128 = Shake(<span class="tok-number">128</span>);</span> <span class="line" id="L19"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Shake256 = Shake(<span class="tok-number">256</span>);</span> <span class="line" id="L20"></span> <span class="line" id="L21"><span class="tok-comment">/// TurboSHAKE128 is a XOF (a secure hash function with a variable output length), with a 128 bit security level.</span></span> <span class="line" id="L22"><span class="tok-comment">/// It is based on the same permutation as SHA3 and SHAKE128, but which much higher performance.</span></span> <span class="line" id="L23"><span class="tok-comment">/// The delimiter is 0x1f by default, but can be changed for context-separation.</span></span> <span class="line" id="L24"><span class="tok-comment">/// For a protocol that uses both KangarooTwelve and TurboSHAKE128, it is recommended to avoid using 0x06, 0x07 or 0x0b for the delimiter.</span></span> <span class="line" id="L25"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">TurboShake128</span>(<span class="tok-kw">comptime</span> delim: ?<span class="tok-type">u7</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L26"> <span class="tok-kw">return</span> TurboShake(<span class="tok-number">128</span>, delim);</span> <span class="line" id="L27">}</span> <span class="line" id="L28"></span> <span class="line" id="L29"><span class="tok-comment">/// TurboSHAKE256 is a XOF (a secure hash function with a variable output length), with a 256 bit security level.</span></span> <span class="line" id="L30"><span class="tok-comment">/// It is based on the same permutation as SHA3 and SHAKE256, but which much higher performance.</span></span> <span class="line" id="L31"><span class="tok-comment">/// The delimiter is 0x1f by default, but can be changed for context-separation.</span></span> <span class="line" id="L32"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">TurboShake256</span>(<span class="tok-kw">comptime</span> delim: ?<span class="tok-type">u7</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L33"> <span class="tok-kw">return</span> TurboShake(<span class="tok-number">256</span>, delim);</span> <span class="line" id="L34">}</span> <span class="line" id="L35"></span> <span class="line" id="L36"><span class="tok-comment">/// A generic Keccak hash function.</span></span> <span class="line" id="L37"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">Keccak</span>(<span class="tok-kw">comptime</span> f: <span class="tok-type">u11</span>, <span class="tok-kw">comptime</span> output_bits: <span class="tok-type">u11</span>, <span class="tok-kw">comptime</span> delim: <span class="tok-type">u8</span>, <span class="tok-kw">comptime</span> rounds: <span class="tok-type">u5</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L38"> <span class="tok-kw">comptime</span> assert(output_bits > <span class="tok-number">0</span> <span class="tok-kw">and</span> output_bits * <span class="tok-number">2</span> < f <span class="tok-kw">and</span> output_bits % <span class="tok-number">8</span> == <span class="tok-number">0</span>); <span class="tok-comment">// invalid output length</span> </span> <span class="line" id="L39"></span> <span class="line" id="L40"> <span class="tok-kw">const</span> State = KeccakState(f, output_bits * <span class="tok-number">2</span>, delim, rounds);</span> <span class="line" id="L41"></span> <span class="line" id="L42"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L43"> <span class="tok-kw">const</span> Self = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L44"></span> <span class="line" id="L45"> st: State = .{},</span> <span class="line" id="L46"></span> <span class="line" id="L47"> <span class="tok-comment">/// The output length, in bytes.</span></span> <span class="line" id="L48"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> digest_length = output_bits / <span class="tok-number">8</span>;</span> <span class="line" id="L49"> <span class="tok-comment">/// The block length, or rate, in bytes.</span></span> <span class="line" id="L50"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> block_length = State.rate;</span> <span class="line" id="L51"> <span class="tok-comment">/// Keccak does not have any options.</span></span> <span class="line" id="L52"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Options = <span class="tok-kw">struct</span> {};</span> <span class="line" id="L53"></span> <span class="line" id="L54"> <span class="tok-comment">/// Initialize a Keccak hash function.</span></span> <span class="line" id="L55"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">init</span>(options: Options) Self {</span> <span class="line" id="L56"> _ = options;</span> <span class="line" id="L57"> <span class="tok-kw">return</span> Self{};</span> <span class="line" id="L58"> }</span> <span class="line" id="L59"></span> <span class="line" id="L60"> <span class="tok-comment">/// Hash a slice of bytes.</span></span> <span class="line" id="L61"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">hash</span>(bytes: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, out: [digest_length]<span class="tok-type">u8</span>, options: Options) <span class="tok-type">void</span> {</span> <span class="line" id="L62"> <span class="tok-kw">var</span> st = Self.init(options);</span> <span class="line" id="L63"> st.update(bytes);</span> <span class="line" id="L64"> st.final(out);</span> <span class="line" id="L65"> }</span> <span class="line" id="L66"></span> <span class="line" id="L67"> <span class="tok-comment">/// Absorb a slice of bytes into the state.</span></span> <span class="line" id="L68"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">update</span>(self: Self, bytes: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L69"> self.st.absorb(bytes);</span> <span class="line" id="L70"> }</span> <span class="line" id="L71"></span> <span class="line" id="L72"> <span class="tok-comment">/// Return the hash of the absorbed bytes.</span></span> <span class="line" id="L73"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">final</span>(self: Self, out: [digest_length]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L74"> self.st.pad();</span> <span class="line" id="L75"> self.st.squeeze(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L76"> }</span> <span class="line" id="L77"></span> <span class="line" id="L78"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Error = <span class="tok-kw">error</span>{};</span> <span class="line" id="L79"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Writer = std.io.Writer(Self, Error, write);</span> <span class="line" id="L80"></span> <span class="line" id="L81"> <span class="tok-kw">fn</span> <span class="tok-fn">write</span>(self: Self, bytes: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) Error!<span class="tok-type">usize</span> {</span> <span class="line" id="L82"> self.update(bytes);</span> <span class="line" id="L83"> <span class="tok-kw">return</span> bytes.len;</span> <span class="line" id="L84"> }</span> <span class="line" id="L85"></span> <span class="line" id="L86"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">writer</span>(self: Self) Writer {</span> <span class="line" id="L87"> <span class="tok-kw">return</span> .{ .context = self };</span> <span class="line" id="L88"> }</span> <span class="line" id="L89"> };</span> <span class="line" id="L90">}</span> <span class="line" id="L91"></span> <span class="line" id="L92"><span class="tok-comment">/// The SHAKE extendable output hash function.</span></span> <span class="line" id="L93"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">Shake</span>(<span class="tok-kw">comptime</span> security_level: <span class="tok-type">u11</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L94"> <span class="tok-kw">return</span> ShakeLike(security_level, <span class="tok-number">0x1f</span>, <span class="tok-number">24</span>);</span> <span class="line" id="L95">}</span> <span class="line" id="L96"></span> <span class="line" id="L97"><span class="tok-comment">/// The TurboSHAKE extendable output hash function.</span></span> <span class="line" id="L98"><span class="tok-comment">/// It is based on the same permutation as SHA3 and SHAKE, but which much higher performance.</span></span> <span class="line" id="L99"><span class="tok-comment">/// The delimiter is 0x1f by default, but can be changed for context-separation.</span></span> <span class="line" id="L100"><span class="tok-comment">/// https://eprint.iacr.org/2023/342</span></span> <span class="line" id="L101"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">TurboShake</span>(<span class="tok-kw">comptime</span> security_level: <span class="tok-type">u11</span>, <span class="tok-kw">comptime</span> delim: ?<span class="tok-type">u7</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L102"> <span class="tok-kw">comptime</span> assert(security_level <= <span class="tok-number">256</span>);</span> <span class="line" id="L103"> <span class="tok-kw">const</span> d = delim <span class="tok-kw">orelse</span> <span class="tok-number">0x1f</span>;</span> <span class="line" id="L104"> <span class="tok-kw">comptime</span> assert(d >= <span class="tok-number">0x01</span>); <span class="tok-comment">// delimiter must be >= 1</span> </span> <span class="line" id="L105"> <span class="tok-kw">return</span> ShakeLike(security_level, d, <span class="tok-number">12</span>);</span> <span class="line" id="L106">}</span> <span class="line" id="L107"></span> <span class="line" id="L108"><span class="tok-kw">fn</span> <span class="tok-fn">ShakeLike</span>(<span class="tok-kw">comptime</span> security_level: <span class="tok-type">u11</span>, <span class="tok-kw">comptime</span> delim: <span class="tok-type">u8</span>, <span class="tok-kw">comptime</span> rounds: <span class="tok-type">u5</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L109"> <span class="tok-kw">const</span> f = <span class="tok-number">1600</span>;</span> <span class="line" id="L110"> <span class="tok-kw">const</span> State = KeccakState(f, security_level <span class="tok-number">2</span>, delim, rounds);</span> <span class="line" id="L111"></span> <span class="line" id="L112"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L113"> <span class="tok-kw">const</span> Self = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L114"></span> <span class="line" id="L115"> st: State = .{},</span> <span class="line" id="L116"> buf: [State.rate]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>,</span> <span class="line" id="L117"> offset: <span class="tok-type">usize</span> = <span class="tok-number">0</span>,</span> <span class="line" id="L118"> padded: <span class="tok-type">bool</span> = <span class="tok-null">false</span>,</span> <span class="line" id="L119"></span> <span class="line" id="L120"> <span class="tok-comment">/// The recommended output length, in bytes.</span></span> <span class="line" id="L121"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> digest_length = security_level / <span class="tok-number">2</span>;</span> <span class="line" id="L122"> <span class="tok-comment">/// The block length, or rate, in bytes.</span></span> <span class="line" id="L123"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> block_length = State.rate;</span> <span class="line" id="L124"> <span class="tok-comment">/// Keccak does not have any options.</span></span> <span class="line" id="L125"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Options = <span class="tok-kw">struct</span> {};</span> <span class="line" id="L126"></span> <span class="line" id="L127"> <span class="tok-comment">/// Initialize a SHAKE extensible hash function.</span></span> <span class="line" id="L128"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">init</span>(options: Options) Self {</span> <span class="line" id="L129"> _ = options;</span> <span class="line" id="L130"> <span class="tok-kw">return</span> Self{};</span> <span class="line" id="L131"> }</span> <span class="line" id="L132"></span> <span class="line" id="L133"> <span class="tok-comment">/// Hash a slice of bytes.</span></span> <span class="line" id="L134"> <span class="tok-comment">/// `out` can be any length.</span></span> <span class="line" id="L135"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">hash</span>(bytes: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, out: []<span class="tok-type">u8</span>, options: Options) <span class="tok-type">void</span> {</span> <span class="line" id="L136"> <span class="tok-kw">var</span> st = Self.init(options);</span> <span class="line" id="L137"> st.update(bytes);</span> <span class="line" id="L138"> st.squeeze(out);</span> <span class="line" id="L139"> }</span> <span class="line" id="L140"></span> <span class="line" id="L141"> <span class="tok-comment">/// Absorb a slice of bytes into the state.</span></span> <span class="line" id="L142"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">update</span>(self: Self, bytes: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L143"> self.st.absorb(bytes);</span> <span class="line" id="L144"> }</span> <span class="line" id="L145"></span> <span class="line" id="L146"> <span class="tok-comment">/// Squeeze a slice of bytes from the state.</span></span> <span class="line" id="L147"> <span class="tok-comment">/// `out` can be any length, and the function can be called multiple times.</span></span> <span class="line" id="L148"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">squeeze</span>(self: Self, out_: []<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L149"> <span class="tok-kw">if</span> (!self.padded) {</span> <span class="line" id="L150"> self.st.pad();</span> <span class="line" id="L151"> self.padded = <span class="tok-null">true</span>;</span> <span class="line" id="L152"> }</span> <span class="line" id="L153"> <span class="tok-kw">var</span> out = out_;</span> <span class="line" id="L154"> <span class="tok-kw">if</span> (self.offset > <span class="tok-number">0</span>) {</span> <span class="line" id="L155"> <span class="tok-kw">const</span> left = self.buf.len - self.offset;</span> <span class="line" id="L156"> <span class="tok-kw">if</span> (left > <span class="tok-number">0</span>) {</span> <span class="line" id="L157"> <span class="tok-kw">const</span> n = <span class="tok-builtin">@min</span>(left, out.len);</span> <span class="line" id="L158"> <span class="tok-builtin">@memcpy</span>(out[<span class="tok-number">0</span>..n], self.buf[self.offset..][<span class="tok-number">0</span>..n]);</span> <span class="line" id="L159"> out = out[n..];</span> <span class="line" id="L160"> self.offset += n;</span> <span class="line" id="L161"> <span class="tok-kw">if</span> (out.len == <span class="tok-number">0</span>) {</span> <span class="line" id="L162"> <span class="tok-kw">return</span>;</span> <span class="line" id="L163"> }</span> <span class="line" id="L164"> }</span> <span class="line" id="L165"> }</span> <span class="line" id="L166"> <span class="tok-kw">const</span> full_blocks = out[<span class="tok-number">0</span> .. out.len - out.len % State.rate];</span> <span class="line" id="L167"> <span class="tok-kw">if</span> (full_blocks.len > <span class="tok-number">0</span>) {</span> <span class="line" id="L168"> self.st.squeeze(full_blocks);</span> <span class="line" id="L169"> out = out[full_blocks.len..];</span> <span class="line" id="L170"> }</span> <span class="line" id="L171"> <span class="tok-kw">if</span> (out.len > <span class="tok-number">0</span>) {</span> <span class="line" id="L172"> self.st.squeeze(self.buf[<span class="tok-number">0</span>..]);</span> <span class="line" id="L173"> <span class="tok-builtin">@memcpy</span>(out[<span class="tok-number">0</span>..], self.buf[<span class="tok-number">0</span>..out.len]);</span> <span class="line" id="L174"> self.offset = out.len;</span> <span class="line" id="L175"> }</span> <span class="line" id="L176"> }</span> <span class="line" id="L177"></span> <span class="line" id="L178"> <span class="tok-comment">/// Return the hash of the absorbed bytes.</span></span> <span class="line" id="L179"> <span class="tok-comment">/// `out` can be of any length, but the function must not be called multiple times (use `squeeze` for that purpose instead).</span></span> <span class="line" id="L180"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">final</span>(self: Self, out: []<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L181"> self.squeeze(out);</span> <span class="line" id="L182"> self.st.st.clear(<span class="tok-number">0</span>, State.rate);</span> <span class="line" id="L183"> }</span> <span class="line" id="L184"></span> <span class="line" id="L185"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Error = <span class="tok-kw">error</span>{};</span> <span class="line" id="L186"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Writer = std.io.Writer(Self, Error, write);</span> <span class="line" id="L187"></span> <span class="line" id="L188"> <span class="tok-kw">fn</span> <span class="tok-fn">write</span>(self: Self, bytes: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) Error!<span class="tok-type">usize</span> {</span> <span class="line" id="L189"> self.update(bytes);</span> <span class="line" id="L190"> <span class="tok-kw">return</span> bytes.len;</span> <span class="line" id="L191"> }</span> <span class="line" id="L192"></span> <span class="line" id="L193"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">writer</span>(self: Self) Writer {</span> <span class="line" id="L194"> <span class="tok-kw">return</span> .{ .context = self };</span> <span class="line" id="L195"> }</span> <span class="line" id="L196"> };</span> <span class="line" id="L197">}</span> <span class="line" id="L198"></span> <span class="line" id="L199"><span class="tok-kw">const</span> htest = <span class="tok-builtin">@import</span>(<span class="tok-str">"test.zig"</span>);</span> <span class="line" id="L200"></span> <span class="line" id="L201"><span class="tok-kw">test</span> <span class="tok-str">"sha3-224 single"</span> {</span> <span class="line" id="L202"> <span class="tok-kw">try</span> htest.assertEqualHash(Sha3_224, <span class="tok-str">"6b4e03423667dbb73b6e15454f0eb1abd4597f9a1b078e3f5b5a6bc7"</span>, <span class="tok-str">""</span>);</span> <span class="line" id="L203"> <span class="tok-kw">try</span> htest.assertEqualHash(Sha3_224, <span class="tok-str">"e642824c3f8cf24ad09234ee7d3c766fc9a3a5168d0c94ad73b46fdf"</span>, <span class="tok-str">"abc"</span>);</span> <span class="line" id="L204"> <span class="tok-kw">try</span> htest.assertEqualHash(Sha3_224, <span class="tok-str">"543e6868e1666c1a643630df77367ae5a62a85070a51c14cbf665cbc"</span>, <span class="tok-str">"abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmnhijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu"</span>);</span> <span class="line" id="L205">}</span> <span class="line" id="L206"></span> <span class="line" id="L207"><span class="tok-kw">test</span> <span class="tok-str">"sha3-224 streaming"</span> {</span> <span class="line" id="L208"> <span class="tok-kw">var</span> h = Sha3_224.init(.{});</span> <span class="line" id="L209"> <span class="tok-kw">var</span> out: [<span class="tok-number">28</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L210"></span> <span class="line" id="L211"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L212"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"6b4e03423667dbb73b6e15454f0eb1abd4597f9a1b078e3f5b5a6bc7"</span>, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L213"></span> <span class="line" id="L214"> h = Sha3_224.init(.{});</span> <span class="line" id="L215"> h.update(<span class="tok-str">"abc"</span>);</span> <span class="line" id="L216"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L217"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"e642824c3f8cf24ad09234ee7d3c766fc9a3a5168d0c94ad73b46fdf"</span>, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L218"></span> <span class="line" id="L219"> h = Sha3_224.init(.{});</span> <span class="line" id="L220"> h.update(<span class="tok-str">"a"</span>);</span> <span class="line" id="L221"> h.update(<span class="tok-str">"b"</span>);</span> <span class="line" id="L222"> h.update(<span class="tok-str">"c"</span>);</span> <span class="line" id="L223"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L224"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"e642824c3f8cf24ad09234ee7d3c766fc9a3a5168d0c94ad73b46fdf"</span>, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L225">}</span> <span class="line" id="L226"></span> <span class="line" id="L227"><span class="tok-kw">test</span> <span class="tok-str">"sha3-256 single"</span> {</span> <span class="line" id="L228"> <span class="tok-kw">try</span> htest.assertEqualHash(Sha3_256, <span class="tok-str">"a7ffc6f8bf1ed76651c14756a061d662f580ff4de43b49fa82d80a4b80f8434a"</span>, <span class="tok-str">""</span>);</span> <span class="line" id="L229"> <span class="tok-kw">try</span> htest.assertEqualHash(Sha3_256, <span class="tok-str">"3a985da74fe225b2045c172d6bd390bd855f086e3e9d525b46bfe24511431532"</span>, <span class="tok-str">"abc"</span>);</span> <span class="line" id="L230"> <span class="tok-kw">try</span> htest.assertEqualHash(Sha3_256, <span class="tok-str">"916f6061fe879741ca6469b43971dfdb28b1a32dc36cb3254e812be27aad1d18"</span>, <span class="tok-str">"abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmnhijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu"</span>);</span> <span class="line" id="L231">}</span> <span class="line" id="L232"></span> <span class="line" id="L233"><span class="tok-kw">test</span> <span class="tok-str">"sha3-256 streaming"</span> {</span> <span class="line" id="L234"> <span class="tok-kw">var</span> h = Sha3_256.init(.{});</span> <span class="line" id="L235"> <span class="tok-kw">var</span> out: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L236"></span> <span class="line" id="L237"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L238"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"a7ffc6f8bf1ed76651c14756a061d662f580ff4de43b49fa82d80a4b80f8434a"</span>, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L239"></span> <span class="line" id="L240"> h = Sha3_256.init(.{});</span> <span class="line" id="L241"> h.update(<span class="tok-str">"abc"</span>);</span> <span class="line" id="L242"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L243"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"3a985da74fe225b2045c172d6bd390bd855f086e3e9d525b46bfe24511431532"</span>, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L244"></span> <span class="line" id="L245"> h = Sha3_256.init(.{});</span> <span class="line" id="L246"> h.update(<span class="tok-str">"a"</span>);</span> <span class="line" id="L247"> h.update(<span class="tok-str">"b"</span>);</span> <span class="line" id="L248"> h.update(<span class="tok-str">"c"</span>);</span> <span class="line" id="L249"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L250"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"3a985da74fe225b2045c172d6bd390bd855f086e3e9d525b46bfe24511431532"</span>, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L251">}</span> <span class="line" id="L252"></span> <span class="line" id="L253"><span class="tok-kw">test</span> <span class="tok-str">"sha3-256 aligned final"</span> {</span> <span class="line" id="L254"> <span class="tok-kw">var</span> block = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} Sha3_256.block_length;</span> <span class="line" id="L255"> <span class="tok-kw">var</span> out: [Sha3_256.digest_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L256"></span> <span class="line" id="L257"> <span class="tok-kw">var</span> h = Sha3_256.init(.{});</span> <span class="line" id="L258"> h.update(&block);</span> <span class="line" id="L259"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L260">}</span> <span class="line" id="L261"></span> <span class="line" id="L262"><span class="tok-kw">test</span> <span class="tok-str">"sha3-384 single"</span> {</span> <span class="line" id="L263"> <span class="tok-kw">const</span> h1 = <span class="tok-str">"0c63a75b845e4f7d01107d852e4c2485c51a50aaaa94fc61995e71bbee983a2ac3713831264adb47fb6bd1e058d5f004"</span>;</span> <span class="line" id="L264"> <span class="tok-kw">try</span> htest.assertEqualHash(Sha3_384, h1, <span class="tok-str">""</span>);</span> <span class="line" id="L265"> <span class="tok-kw">const</span> h2 = <span class="tok-str">"ec01498288516fc926459f58e2c6ad8df9b473cb0fc08c2596da7cf0e49be4b298d88cea927ac7f539f1edf228376d25"</span>;</span> <span class="line" id="L266"> <span class="tok-kw">try</span> htest.assertEqualHash(Sha3_384, h2, <span class="tok-str">"abc"</span>);</span> <span class="line" id="L267"> <span class="tok-kw">const</span> h3 = <span class="tok-str">"79407d3b5916b59c3e30b09822974791c313fb9ecc849e406f23592d04f625dc8c709b98b43b3852b337216179aa7fc7"</span>;</span> <span class="line" id="L268"> <span class="tok-kw">try</span> htest.assertEqualHash(Sha3_384, h3, <span class="tok-str">"abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmnhijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu"</span>);</span> <span class="line" id="L269">}</span> <span class="line" id="L270"></span> <span class="line" id="L271"><span class="tok-kw">test</span> <span class="tok-str">"sha3-384 streaming"</span> {</span> <span class="line" id="L272"> <span class="tok-kw">var</span> h = Sha3_384.init(.{});</span> <span class="line" id="L273"> <span class="tok-kw">var</span> out: [<span class="tok-number">48</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L274"></span> <span class="line" id="L275"> <span class="tok-kw">const</span> h1 = <span class="tok-str">"0c63a75b845e4f7d01107d852e4c2485c51a50aaaa94fc61995e71bbee983a2ac3713831264adb47fb6bd1e058d5f004"</span>;</span> <span class="line" id="L276"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L277"> <span class="tok-kw">try</span> htest.assertEqual(h1, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L278"></span> <span class="line" id="L279"> <span class="tok-kw">const</span> h2 = <span class="tok-str">"ec01498288516fc926459f58e2c6ad8df9b473cb0fc08c2596da7cf0e49be4b298d88cea927ac7f539f1edf228376d25"</span>;</span> <span class="line" id="L280"> h = Sha3_384.init(.{});</span> <span class="line" id="L281"> h.update(<span class="tok-str">"abc"</span>);</span> <span class="line" id="L282"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L283"> <span class="tok-kw">try</span> htest.assertEqual(h2, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L284"></span> <span class="line" id="L285"> h = Sha3_384.init(.{});</span> <span class="line" id="L286"> h.update(<span class="tok-str">"a"</span>);</span> <span class="line" id="L287"> h.update(<span class="tok-str">"b"</span>);</span> <span class="line" id="L288"> h.update(<span class="tok-str">"c"</span>);</span> <span class="line" id="L289"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L290"> <span class="tok-kw">try</span> htest.assertEqual(h2, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L291">}</span> <span class="line" id="L292"></span> <span class="line" id="L293"><span class="tok-kw">test</span> <span class="tok-str">"sha3-512 single"</span> {</span> <span class="line" id="L294"> <span class="tok-kw">const</span> h1 = <span class="tok-str">"a69f73cca23a9ac5c8b567dc185a756e97c982164fe25859e0d1dcc1475c80a615b2123af1f5f94c11e3e9402c3ac558f500199d95b6d3e301758586281dcd26"</span>;</span> <span class="line" id="L295"> <span class="tok-kw">try</span> htest.assertEqualHash(Sha3_512, h1, <span class="tok-str">""</span>);</span> <span class="line" id="L296"> <span class="tok-kw">const</span> h2 = <span class="tok-str">"b751850b1a57168a5693cd924b6b096e08f621827444f70d884f5d0240d2712e10e116e9192af3c91a7ec57647e3934057340b4cf408d5a56592f8274eec53f0"</span>;</span> <span class="line" id="L297"> <span class="tok-kw">try</span> htest.assertEqualHash(Sha3_512, h2, <span class="tok-str">"abc"</span>);</span> <span class="line" id="L298"> <span class="tok-kw">const</span> h3 = <span class="tok-str">"afebb2ef542e6579c50cad06d2e578f9f8dd6881d7dc824d26360feebf18a4fa73e3261122948efcfd492e74e82e2189ed0fb440d187f382270cb455f21dd185"</span>;</span> <span class="line" id="L299"> <span class="tok-kw">try</span> htest.assertEqualHash(Sha3_512, h3, <span class="tok-str">"abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmnhijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu"</span>);</span> <span class="line" id="L300">}</span> <span class="line" id="L301"></span> <span class="line" id="L302"><span class="tok-kw">test</span> <span class="tok-str">"sha3-512 streaming"</span> {</span> <span class="line" id="L303"> <span class="tok-kw">var</span> h = Sha3_512.init(.{});</span> <span class="line" id="L304"> <span class="tok-kw">var</span> out: [<span class="tok-number">64</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L305"></span> <span class="line" id="L306"> <span class="tok-kw">const</span> h1 = <span class="tok-str">"a69f73cca23a9ac5c8b567dc185a756e97c982164fe25859e0d1dcc1475c80a615b2123af1f5f94c11e3e9402c3ac558f500199d95b6d3e301758586281dcd26"</span>;</span> <span class="line" id="L307"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L308"> <span class="tok-kw">try</span> htest.assertEqual(h1, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L309"></span> <span class="line" id="L310"> <span class="tok-kw">const</span> h2 = <span class="tok-str">"b751850b1a57168a5693cd924b6b096e08f621827444f70d884f5d0240d2712e10e116e9192af3c91a7ec57647e3934057340b4cf408d5a56592f8274eec53f0"</span>;</span> <span class="line" id="L311"> h = Sha3_512.init(.{});</span> <span class="line" id="L312"> h.update(<span class="tok-str">"abc"</span>);</span> <span class="line" id="L313"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L314"> <span class="tok-kw">try</span> htest.assertEqual(h2, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L315"></span> <span class="line" id="L316"> h = Sha3_512.init(.{});</span> <span class="line" id="L317"> h.update(<span class="tok-str">"a"</span>);</span> <span class="line" id="L318"> h.update(<span class="tok-str">"b"</span>);</span> <span class="line" id="L319"> h.update(<span class="tok-str">"c"</span>);</span> <span class="line" id="L320"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L321"> <span class="tok-kw">try</span> htest.assertEqual(h2, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L322">}</span> <span class="line" id="L323"></span> <span class="line" id="L324"><span class="tok-kw">test</span> <span class="tok-str">"sha3-512 aligned final"</span> {</span> <span class="line" id="L325"> <span class="tok-kw">var</span> block = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} Sha3_512.block_length;</span> <span class="line" id="L326"> <span class="tok-kw">var</span> out: [Sha3_512.digest_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L327"></span> <span class="line" id="L328"> <span class="tok-kw">var</span> h = Sha3_512.init(.{});</span> <span class="line" id="L329"> h.update(&block);</span> <span class="line" id="L330"> h.final(out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L331">}</span> <span class="line" id="L332"></span> <span class="line" id="L333"><span class="tok-kw">test</span> <span class="tok-str">"keccak-256 single"</span> {</span> <span class="line" id="L334"> <span class="tok-kw">try</span> htest.assertEqualHash(Keccak256, <span class="tok-str">"c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470"</span>, <span class="tok-str">""</span>);</span> <span class="line" id="L335"> <span class="tok-kw">try</span> htest.assertEqualHash(Keccak256, <span class="tok-str">"4e03657aea45a94fc7d47ba826c8d667c0d1e6e33a64a036ec44f58fa12d6c45"</span>, <span class="tok-str">"abc"</span>);</span> <span class="line" id="L336"> <span class="tok-kw">try</span> htest.assertEqualHash(Keccak256, <span class="tok-str">"f519747ed599024f3882238e5ab43960132572b7345fbeb9a90769dafd21ad67"</span>, <span class="tok-str">"abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmnhijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu"</span>);</span> <span class="line" id="L337">}</span> <span class="line" id="L338"></span> <span class="line" id="L339"><span class="tok-kw">test</span> <span class="tok-str">"keccak-512 single"</span> {</span> <span class="line" id="L340"> <span class="tok-kw">try</span> htest.assertEqualHash(Keccak512, <span class="tok-str">"0eab42de4c3ceb9235fc91acffe746b29c29a8c366b7c60e4e67c466f36a4304c00fa9caf9d87976ba469bcbe06713b435f091ef2769fb160cdab33d3670680e"</span>, <span class="tok-str">""</span>);</span> <span class="line" id="L341"> <span class="tok-kw">try</span> htest.assertEqualHash(Keccak512, <span class="tok-str">"18587dc2ea106b9a1563e32b3312421ca164c7f1f07bc922a9c83d77cea3a1e5d0c69910739025372dc14ac9642629379540c17e2a65b19d77aa511a9d00bb96"</span>, <span class="tok-str">"abc"</span>);</span> <span class="line" id="L342"> <span class="tok-kw">try</span> htest.assertEqualHash(Keccak512, <span class="tok-str">"ac2fb35251825d3aa48468a9948c0a91b8256f6d97d8fa4160faff2dd9dfcc24f3f1db7a983dad13d53439ccac0b37e24037e7b95f80f59f37a2f683c4ba4682"</span>, <span class="tok-str">"abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmnhijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu"</span>);</span> <span class="line" id="L343">}</span> <span class="line" id="L344"></span> <span class="line" id="L345"><span class="tok-kw">test</span> <span class="tok-str">"SHAKE-128 single"</span> {</span> <span class="line" id="L346"> <span class="tok-kw">var</span> out: [<span class="tok-number">10</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L347"> Shake128.hash(<span class="tok-str">"hello123"</span>, &out, .{});</span> <span class="line" id="L348"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"1b85861510bc4d8e467d"</span>, &out);</span> <span class="line" id="L349">}</span> <span class="line" id="L350"></span> <span class="line" id="L351"><span class="tok-kw">test</span> <span class="tok-str">"SHAKE-128 multisqueeze"</span> {</span> <span class="line" id="L352"> <span class="tok-kw">var</span> out: [<span class="tok-number">10</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L353"> <span class="tok-kw">var</span> h = Shake128.init(.{});</span> <span class="line" id="L354"> h.update(<span class="tok-str">"hello123"</span>);</span> <span class="line" id="L355"> h.squeeze(out[<span class="tok-number">0</span>..<span class="tok-number">4</span>]);</span> <span class="line" id="L356"> h.squeeze(out[<span class="tok-number">4</span>..]);</span> <span class="line" id="L357"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"1b85861510bc4d8e467d"</span>, &out);</span> <span class="line" id="L358">}</span> <span class="line" id="L359"></span> <span class="line" id="L360"><span class="tok-kw">test</span> <span class="tok-str">"SHAKE-128 multisqueeze with multiple blocks"</span> {</span> <span class="line" id="L361"> <span class="tok-kw">var</span> out: [<span class="tok-number">100</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L362"> <span class="tok-kw">var</span> out2: [<span class="tok-number">100</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L363"></span> <span class="line" id="L364"> <span class="tok-kw">var</span> h = Shake128.init(.{});</span> <span class="line" id="L365"> h.update(<span class="tok-str">"hello123"</span>);</span> <span class="line" id="L366"> h.squeeze(out[<span class="tok-number">0</span>..<span class="tok-number">50</span>]);</span> <span class="line" id="L367"> h.squeeze(out[<span class="tok-number">50</span>..]);</span> <span class="line" id="L368"></span> <span class="line" id="L369"> <span class="tok-kw">var</span> h2 = Shake128.init(.{});</span> <span class="line" id="L370"> h2.update(<span class="tok-str">"hello123"</span>);</span> <span class="line" id="L371"> h2.squeeze(&out2);</span> <span class="line" id="L372"> <span class="tok-kw">try</span> std.testing.expectEqualSlices(<span class="tok-type">u8</span>, &out, &out2);</span> <span class="line" id="L373">}</span> <span class="line" id="L374"></span> <span class="line" id="L375"><span class="tok-kw">test</span> <span class="tok-str">"SHAKE-256 single"</span> {</span> <span class="line" id="L376"> <span class="tok-kw">var</span> out: [<span class="tok-number">10</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L377"> Shake256.hash(<span class="tok-str">"hello123"</span>, &out, .{});</span> <span class="line" id="L378"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"ade612ba265f92de4a37"</span>, &out);</span> <span class="line" id="L379">}</span> <span class="line" id="L380"></span> <span class="line" id="L381"><span class="tok-kw">test</span> <span class="tok-str">"TurboSHAKE-128"</span> {</span> <span class="line" id="L382"> <span class="tok-kw">var</span> out: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L383"> TurboShake(<span class="tok-number">128</span>, <span class="tok-number">0x06</span>).hash(<span class="tok-str">"\xff"</span>, &out, .{});</span> <span class="line" id="L384"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"8ec9c66465ed0d4a6c35d13506718d687a25cb05c74cca1e42501abd83874a67"</span>, &out);</span> <span class="line" id="L385">}</span> <span class="line" id="L386"></span> <span class="line" id="L387"><span class="tok-kw">test</span> <span class="tok-str">"SHA-3 with streaming"</span> {</span> <span class="line" id="L388"> <span class="tok-kw">var</span> msg: [<span class="tok-number">613</span>]<span class="tok-type">u8</span> = [<span class="tok-number">613</span>]<span class="tok-type">u8</span>{ <span class="tok-number">0x97</span>, <span class="tok-number">0xd1</span>, <span class="tok-number">0x2d</span>, <span class="tok-number">0x1a</span>, <span class="tok-number">0x16</span>, <span class="tok-number">0x2d</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0x4d</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x62</span>, <span class="tok-number">0x19</span>, <span class="tok-number">0x0b</span>, <span class="tok-number">0x14</span>, <span class="tok-number">0x93</span>, <span class="tok-number">0xbb</span>, <span class="tok-number">0xf8</span>, <span class="tok-number">0x5b</span>, <span class="tok-number">0xea</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0xc2</span>, <span class="tok-number">0x61</span>, <span class="tok-number">0x8e</span>, <span class="tok-number">0xd6</span>, <span class="tok-number">0x08</span>, <span class="tok-number">0x81</span>, <span class="tok-number">0xa1</span>, <span class="tok-number">0x1d</span>, <span class="tok-number">0x73</span>, <span class="tok-number">0x27</span>, <span class="tok-number">0x48</span>, <span class="tok-number">0xbf</span>, <span class="tok-number">0xa4</span>, <span class="tok-number">0xba</span>, <span class="tok-number">0xb1</span>, <span class="tok-number">0x9a</span>, <span class="tok-number">0x48</span>, <span class="tok-number">0x9c</span>, <span class="tok-number">0xf9</span>, <span class="tok-number">0x9b</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x48</span>, <span class="tok-number">0xa9</span>, <span class="tok-number">0x75</span>, <span class="tok-number">0xea</span>, <span class="tok-number">0xc8</span>, <span class="tok-number">0xa3</span>, <span class="tok-number">0x48</span>, <span class="tok-number">0x24</span>, <span class="tok-number">0x9d</span>, <span class="tok-number">0x75</span>, <span class="tok-number">0x27</span>, <span class="tok-number">0x48</span>, <span class="tok-number">0xec</span>, <span class="tok-number">0x03</span>, <span class="tok-number">0xb0</span>, <span class="tok-number">0xbb</span>, <span class="tok-number">0xdf</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x90</span>, <span class="tok-number">0xe3</span>, <span class="tok-number">0x93</span>, <span class="tok-number">0xed</span>, <span class="tok-number">0x68</span>, <span class="tok-number">0x24</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x12</span>, <span class="tok-number">0xdf</span>, <span class="tok-number">0xea</span>, <span class="tok-number">0xee</span>, <span class="tok-number">0x8c</span>, <span class="tok-number">0x9f</span>, <span class="tok-number">0x96</span>, <span class="tok-number">0xde</span>, <span class="tok-number">0x42</span>, <span class="tok-number">0x46</span>, <span class="tok-number">0x8c</span>, <span class="tok-number">0x2b</span>, <span class="tok-number">0x17</span>, <span class="tok-number">0x83</span>, <span class="tok-number">0x36</span>, <span class="tok-number">0xfb</span>, <span class="tok-number">0xf4</span>, <span class="tok-number">0xf7</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0x79</span>, <span class="tok-number">0xb9</span>, <span class="tok-number">0x45</span>, <span class="tok-number">0x41</span>, <span class="tok-number">0xc9</span>, <span class="tok-number">0x56</span>, <span class="tok-number">0x1a</span>, <span class="tok-number">0x6b</span>, <span class="tok-number">0x0c</span>, <span class="tok-number">0xa4</span>, <span class="tok-number">0x1a</span>, <span class="tok-number">0xdd</span>, <span class="tok-number">0x6b</span>, <span class="tok-number">0x95</span>, <span class="tok-number">0xe8</span>, <span class="tok-number">0x03</span>, <span class="tok-number">0x0f</span>, <span class="tok-number">0x09</span>, <span class="tok-number">0x29</span>, <span class="tok-number">0x40</span>, <span class="tok-number">0x1b</span>, <span class="tok-number">0xea</span>, <span class="tok-number">0x87</span>, <span class="tok-number">0xfa</span>, <span class="tok-number">0xb9</span>, <span class="tok-number">0x18</span>, <span class="tok-number">0xa9</span>, <span class="tok-number">0x95</span>, <span class="tok-number">0x07</span>, <span class="tok-number">0x7c</span>, <span class="tok-number">0x2f</span>, <span 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class="tok-number">0x10</span>, <span class="tok-number">0x12</span>, <span class="tok-number">0x7e</span>, <span class="tok-number">0xb4</span>, <span class="tok-number">0x76</span>, <span class="tok-number">0x45</span>, <span class="tok-number">0xb6</span>, <span class="tok-number">0xd8</span>, <span class="tok-number">0x9b</span>, <span class="tok-number">0x26</span>, <span class="tok-number">0x40</span>, <span class="tok-number">0xa1</span>, <span class="tok-number">0x63</span>, <span class="tok-number">0x5c</span>, <span class="tok-number">0x7a</span>, <span class="tok-number">0x2a</span>, <span class="tok-number">0xb1</span>, <span class="tok-number">0x8c</span>, <span class="tok-number">0xd6</span>, <span class="tok-number">0xa4</span>, <span class="tok-number">0x6f</span>, <span class="tok-number">0x5a</span>, <span class="tok-number">0xae</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x7e</span>, <span class="tok-number">0x6d</span>, <span class="tok-number">0x71</span>, <span class="tok-number">0xf5</span>, <span class="tok-number">0xc8</span>, <span class="tok-number">0x6d</span>, <span class="tok-number">0x80</span>, <span class="tok-number">0x1c</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0xfc</span>, <span class="tok-number">0x3f</span>, <span class="tok-number">0xc1</span>, <span class="tok-number">0xa6</span>, <span class="tok-number">0xc6</span>, <span class="tok-number">0x1a</span>, <span class="tok-number">0x15</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x6d</span>, <span class="tok-number">0x76</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x95</span>, <span class="tok-number">0xb2</span>, <span class="tok-number">0x51</span>, <span class="tok-number">0x1a</span>, <span class="tok-number">0xe9</span>, <span class="tok-number">0x3e</span>, <span class="tok-number">0x89</span>, <span class="tok-number">0x9f</span>, <span class="tok-number">0x0c</span>, <span class="tok-number">0x79</span> };</span> <span class="line" id="L389"> <span class="tok-kw">var</span> out: [Sha3_256.digest_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L390"></span> <span class="line" id="L391"> Sha3_256.hash(&msg, &out, .{});</span> <span class="line" id="L392"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"5780048dfa381a1d01c747906e4a08711dd34fd712ecd7c6801dd2b38fd81a89"</span>, &out);</span> <span class="line" id="L393"></span> <span class="line" id="L394"> <span class="tok-kw">var</span> h = Sha3_256.init(.{});</span> <span class="line" id="L395"> h.update(msg[<span class="tok-number">0</span>..<span class="tok-number">64</span>]);</span> <span class="line" id="L396"> h.update(msg[<span class="tok-number">64</span>..<span class="tok-number">613</span>]);</span> <span class="line" id="L397"> h.final(&out);</span> <span class="line" id="L398"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"5780048dfa381a1d01c747906e4a08711dd34fd712ecd7c6801dd2b38fd81a89"</span>, &out);</span> <span class="line" id="L399">}</span> <span class="line" id="L400"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/crypto/ff.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/ff.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-comment">//! Allocation-free, (best-effort) constant-time, finite field arithmetic for large integers.</span></span> <span class="line" id="L2"><span class="tok-comment">//!</span></span> <span class="line" id="L3"><span class="tok-comment">//! Unlike `std.math.big`, these integers have a fixed maximum length and are only designed to be used for modular arithmetic.</span></span> <span class="line" id="L4"><span class="tok-comment">//! Arithmetic operations are meant to run in constant-time for a given modulus, making them suitable for cryptography.</span></span> <span class="line" id="L5"><span class="tok-comment">//!</span></span> <span class="line" id="L6"><span class="tok-comment">//! Parts of that code was ported from the BSD-licensed crypto/internal/bigmod/nat.go file in the Go language, itself inspired from BearSSL.</span></span> <span class="line" id="L7"></span> <span class="line" id="L8"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L9"><span class="tok-kw">const</span> builtin = std.builtin;</span> <span class="line" id="L10"><span class="tok-kw">const</span> crypto = std.crypto;</span> <span class="line" id="L11"><span class="tok-kw">const</span> math = std.math;</span> <span class="line" id="L12"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L13"><span class="tok-kw">const</span> meta = std.meta;</span> <span class="line" id="L14"><span class="tok-kw">const</span> testing = std.testing;</span> <span class="line" id="L15"><span class="tok-kw">const</span> BoundedArray = std.BoundedArray;</span> <span class="line" id="L16"><span class="tok-kw">const</span> assert = std.debug.assert;</span> <span class="line" id="L17"></span> <span class="line" id="L18"><span class="tok-comment">// A Limb is a single digit in a big integer.</span> </span> <span class="line" id="L19"><span class="tok-kw">const</span> Limb = <span class="tok-type">usize</span>;</span> <span class="line" id="L20"></span> <span class="line" id="L21"><span class="tok-comment">// The number of reserved bits in a Limb.</span> </span> <span class="line" id="L22"><span class="tok-kw">const</span> carry_bits = <span class="tok-number">1</span>;</span> <span class="line" id="L23"></span> <span class="line" id="L24"><span class="tok-comment">// The number of active bits in a Limb.</span> </span> <span class="line" id="L25"><span class="tok-kw">const</span> t_bits: <span class="tok-type">usize</span> = <span class="tok-builtin">@bitSizeOf</span>(Limb) - carry_bits;</span> <span class="line" id="L26"></span> <span class="line" id="L27"><span class="tok-comment">// A TLimb is a Limb that is truncated to t_bits.</span> </span> <span class="line" id="L28"><span class="tok-kw">const</span> TLimb = meta.Int(.unsigned, t_bits);</span> <span class="line" id="L29"></span> <span class="line" id="L30"><span class="tok-kw">const</span> native_endian = <span class="tok-builtin">@import</span>(<span class="tok-str">"builtin"</span>).target.cpu.arch.endian();</span> <span class="line" id="L31"></span> <span class="line" id="L32"><span class="tok-comment">// A WideLimb is a Limb that is twice as wide as a normal Limb.</span> </span> <span class="line" id="L33"><span class="tok-kw">const</span> WideLimb = <span class="tok-kw">struct</span> {</span> <span class="line" id="L34"> hi: Limb,</span> <span class="line" id="L35"> lo: Limb,</span> <span class="line" id="L36">};</span> <span class="line" id="L37"></span> <span class="line" id="L38"><span class="tok-comment">/// Value is too large for the destination.</span></span> <span class="line" id="L39"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> OverflowError = <span class="tok-kw">error</span>{Overflow};</span> <span class="line" id="L40"></span> <span class="line" id="L41"><span class="tok-comment">/// Invalid modulus. Modulus must be odd.</span></span> <span class="line" id="L42"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> InvalidModulusError = <span class="tok-kw">error</span>{ EvenModulus, ModulusTooSmall };</span> <span class="line" id="L43"></span> <span class="line" id="L44"><span class="tok-comment">/// Exponentation with a null exponent.</span></span> <span class="line" id="L45"><span class="tok-comment">/// Exponentiation in cryptographic protocols is almost always a sign of a bug which can lead to trivial attacks.</span></span> <span class="line" id="L46"><span class="tok-comment">/// Therefore, this module returns an error when a null exponent is encountered, encouraging applications to handle this case explicitly.</span></span> <span class="line" id="L47"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> NullExponentError = <span class="tok-kw">error</span>{NullExponent};</span> <span class="line" id="L48"></span> <span class="line" id="L49"><span class="tok-comment">/// Invalid field element for the given modulus.</span></span> <span class="line" id="L50"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> FieldElementError = <span class="tok-kw">error</span>{NonCanonical};</span> <span class="line" id="L51"></span> <span class="line" id="L52"><span class="tok-comment">/// Invalid representation (Montgomery vs non-Montgomery domain.)</span></span> <span class="line" id="L53"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> RepresentationError = <span class="tok-kw">error</span>{UnexpectedRepresentation};</span> <span class="line" id="L54"></span> <span class="line" id="L55"><span class="tok-comment">/// The set of all possible errors `std.crypto.ff` functions can return.</span></span> <span class="line" id="L56"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Error = OverflowError \|\| InvalidModulusError \|\| NullExponentError \|\| FieldElementError \|\| RepresentationError;</span> <span class="line" id="L57"></span> <span class="line" id="L58"><span class="tok-comment">/// An unsigned big integer with a fixed maximum size (`max_bits`), suitable for cryptographic operations.</span></span> <span class="line" id="L59"><span class="tok-comment">/// Unless side-channels mitigations are explicitly disabled, operations are designed to be constant-time.</span></span> <span class="line" id="L60"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">Uint</span>(<span class="tok-kw">comptime</span> max_bits: <span class="tok-type">comptime_int</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L61"> <span class="tok-kw">comptime</span> assert(<span class="tok-builtin">@bitSizeOf</span>(Limb) % <span class="tok-number">8</span> == <span class="tok-number">0</span>); <span class="tok-comment">// Limb size must be a multiple of 8</span> </span> <span class="line" id="L62"></span> <span class="line" id="L63"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L64"> <span class="tok-kw">const</span> Self = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L65"></span> <span class="line" id="L66"> <span class="tok-kw">const</span> max_limbs_count = math.divCeil(<span class="tok-type">usize</span>, max_bits, t_bits) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L67"> <span class="tok-kw">const</span> Limbs = BoundedArray(Limb, max_limbs_count);</span> <span class="line" id="L68"> limbs: Limbs,</span> <span class="line" id="L69"></span> <span class="line" id="L70"> <span class="tok-comment">/// Number of bytes required to serialize an integer.</span></span> <span class="line" id="L71"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> encoded_bytes = math.divCeil(<span class="tok-type">usize</span>, max_bits, <span class="tok-number">8</span>) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L72"></span> <span class="line" id="L73"> <span class="tok-comment">// Returns the number of active limbs.</span> </span> <span class="line" id="L74"> <span class="tok-kw">fn</span> <span class="tok-fn">limbs_count</span>(self: Self) <span class="tok-type">usize</span> {</span> <span class="line" id="L75"> <span class="tok-kw">return</span> self.limbs.len;</span> <span class="line" id="L76"> }</span> <span class="line" id="L77"></span> <span class="line" id="L78"> <span class="tok-comment">// Removes limbs whose value is zero from the active limbs.</span> </span> <span class="line" id="L79"> <span class="tok-kw">fn</span> <span class="tok-fn">normalize</span>(self: Self) Self {</span> <span class="line" id="L80"> <span class="tok-kw">var</span> res = self;</span> <span class="line" id="L81"> <span class="tok-kw">if</span> (self.limbs_count() < <span class="tok-number">2</span>) {</span> <span class="line" id="L82"> <span class="tok-kw">return</span> res;</span> <span class="line" id="L83"> }</span> <span class="line" id="L84"> <span class="tok-kw">var</span> i = self.limbs_count() - <span class="tok-number">1</span>;</span> <span class="line" id="L85"> <span class="tok-kw">while</span> (i > <span class="tok-number">0</span> <span class="tok-kw">and</span> res.limbs.get(i) == <span class="tok-number">0</span>) : (i -= <span class="tok-number">1</span>) {}</span> <span class="line" id="L86"> res.limbs.resize(i + <span class="tok-number">1</span>) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L87"> <span class="tok-kw">return</span> res;</span> <span class="line" id="L88"> }</span> <span class="line" id="L89"></span> <span class="line" id="L90"> <span class="tok-comment">/// The zero integer.</span></span> <span class="line" id="L91"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> zero = zero: {</span> <span class="line" id="L92"> <span class="tok-kw">var</span> limbs = Limbs.init(<span class="tok-number">0</span>) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L93"> limbs.appendNTimesAssumeCapacity(<span class="tok-number">0</span>, max_limbs_count);</span> <span class="line" id="L94"> <span class="tok-kw">break</span> :zero Self{ .limbs = limbs };</span> <span class="line" id="L95"> };</span> <span class="line" id="L96"></span> <span class="line" id="L97"> <span class="tok-comment">/// Creates a new big integer from a primitive type.</span></span> <span class="line" id="L98"> <span class="tok-comment">/// This function may not run in constant time.</span></span> <span class="line" id="L99"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromPrimitive</span>(<span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>, x_: T) OverflowError!Self {</span> <span class="line" id="L100"> <span class="tok-kw">var</span> x = x_;</span> <span class="line" id="L101"> <span class="tok-kw">var</span> out = Self.zero;</span> <span class="line" id="L102"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..out.limbs.capacity()) \|i\| {</span> <span class="line" id="L103"> <span class="tok-kw">const</span> t = <span class="tok-kw">if</span> (<span class="tok-builtin">@bitSizeOf</span>(T) > t_bits) <span class="tok-builtin">@as</span>(TLimb, <span class="tok-builtin">@truncate</span>(x)) <span class="tok-kw">else</span> x;</span> <span class="line" id="L104"> out.limbs.set(i, t);</span> <span class="line" id="L105"> x = math.shr(T, x, t_bits);</span> <span class="line" id="L106"> }</span> <span class="line" id="L107"> <span class="tok-kw">if</span> (x != <span class="tok-number">0</span>) {</span> <span class="line" id="L108"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.Overflow;</span> <span class="line" id="L109"> }</span> <span class="line" id="L110"> <span class="tok-kw">return</span> out;</span> <span class="line" id="L111"> }</span> <span class="line" id="L112"></span> <span class="line" id="L113"> <span class="tok-comment">/// Converts a big integer to a primitive type.</span></span> <span class="line" id="L114"> <span class="tok-comment">/// This function may not run in constant time.</span></span> <span class="line" id="L115"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toPrimitive</span>(self: Self, <span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>) OverflowError!T {</span> <span class="line" id="L116"> <span class="tok-kw">var</span> x: T = <span class="tok-number">0</span>;</span> <span class="line" id="L117"> <span class="tok-kw">var</span> i = self.limbs_count() - <span class="tok-number">1</span>;</span> <span class="line" id="L118"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) : (i -= <span class="tok-number">1</span>) {</span> <span class="line" id="L119"> <span class="tok-kw">if</span> (<span class="tok-builtin">@bitSizeOf</span>(T) >= t_bits <span class="tok-kw">and</span> math.shr(T, x, <span class="tok-builtin">@bitSizeOf</span>(T) - t_bits) != <span class="tok-number">0</span>) {</span> <span class="line" id="L120"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.Overflow;</span> <span class="line" id="L121"> }</span> <span class="line" id="L122"> x = math.shl(T, x, t_bits);</span> <span class="line" id="L123"> <span class="tok-kw">const</span> v = math.cast(T, self.limbs.get(i)) <span class="tok-kw">orelse</span> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.Overflow;</span> <span class="line" id="L124"> x \|= v;</span> <span class="line" id="L125"> <span class="tok-kw">if</span> (i == <span class="tok-number">0</span>) <span class="tok-kw">break</span>;</span> <span class="line" id="L126"> }</span> <span class="line" id="L127"> <span class="tok-kw">return</span> x;</span> <span class="line" id="L128"> }</span> <span class="line" id="L129"></span> <span class="line" id="L130"> <span class="tok-comment">/// Encodes a big integer into a byte array.</span></span> <span class="line" id="L131"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toBytes</span>(self: Self, bytes: []<span class="tok-type">u8</span>, <span class="tok-kw">comptime</span> endian: builtin.Endian) OverflowError!<span class="tok-type">void</span> {</span> <span class="line" id="L132"> <span class="tok-kw">if</span> (bytes.len == <span class="tok-number">0</span>) {</span> <span class="line" id="L133"> <span class="tok-kw">if</span> (self.isZero()) <span class="tok-kw">return</span>;</span> <span class="line" id="L134"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.Overflow;</span> <span class="line" id="L135"> }</span> <span class="line" id="L136"> <span class="tok-builtin">@memset</span>(bytes, <span class="tok-number">0</span>);</span> <span class="line" id="L137"> <span class="tok-kw">var</span> shift: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L138"> <span class="tok-kw">var</span> out_i: <span class="tok-type">usize</span> = <span class="tok-kw">switch</span> (endian) {</span> <span class="line" id="L139"> .Big => bytes.len - <span class="tok-number">1</span>,</span> <span class="line" id="L140"> .Little => <span class="tok-number">0</span>,</span> <span class="line" id="L141"> };</span> <span class="line" id="L142"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..self.limbs.len) \|i\| {</span> <span class="line" id="L143"> <span class="tok-kw">var</span> remaining_bits = t_bits;</span> <span class="line" id="L144"> <span class="tok-kw">var</span> limb = self.limbs.get(i);</span> <span class="line" id="L145"> <span class="tok-kw">while</span> (remaining_bits >= <span class="tok-number">8</span>) {</span> <span class="line" id="L146"> bytes[out_i] \|= math.shl(<span class="tok-type">u8</span>, <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>(limb)), shift);</span> <span class="line" id="L147"> <span class="tok-kw">const</span> consumed = <span class="tok-number">8</span> - shift;</span> <span class="line" id="L148"> limb >>= <span class="tok-builtin">@as</span>(<span class="tok-type">u4</span>, <span class="tok-builtin">@truncate</span>(consumed));</span> <span class="line" id="L149"> remaining_bits -= consumed;</span> <span class="line" id="L150"> shift = <span class="tok-number">0</span>;</span> <span class="line" id="L151"> <span class="tok-kw">switch</span> (endian) {</span> <span class="line" id="L152"> .Big => {</span> <span class="line" id="L153"> <span class="tok-kw">if</span> (out_i == <span class="tok-number">0</span>) {</span> <span class="line" id="L154"> <span class="tok-kw">if</span> (i != self.limbs.len - <span class="tok-number">1</span> <span class="tok-kw">or</span> limb != <span class="tok-number">0</span>) {</span> <span class="line" id="L155"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.Overflow;</span> <span class="line" id="L156"> }</span> <span class="line" id="L157"> <span class="tok-kw">return</span>;</span> <span class="line" id="L158"> }</span> <span class="line" id="L159"> out_i -= <span class="tok-number">1</span>;</span> <span class="line" id="L160"> },</span> <span class="line" id="L161"> .Little => {</span> <span class="line" id="L162"> out_i += <span class="tok-number">1</span>;</span> <span class="line" id="L163"> <span class="tok-kw">if</span> (out_i == bytes.len) {</span> <span class="line" id="L164"> <span class="tok-kw">if</span> (i != self.limbs.len - <span class="tok-number">1</span> <span class="tok-kw">or</span> limb != <span class="tok-number">0</span>) {</span> <span class="line" id="L165"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.Overflow;</span> <span class="line" id="L166"> }</span> <span class="line" id="L167"> <span class="tok-kw">return</span>;</span> <span class="line" id="L168"> }</span> <span class="line" id="L169"> },</span> <span class="line" id="L170"> }</span> <span class="line" id="L171"> }</span> <span class="line" id="L172"> bytes[out_i] \|= <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>(limb));</span> <span class="line" id="L173"> shift = remaining_bits;</span> <span class="line" id="L174"> }</span> <span class="line" id="L175"> }</span> <span class="line" id="L176"></span> <span class="line" id="L177"> <span class="tok-comment">/// Creates a new big integer from a byte array.</span></span> <span class="line" id="L178"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromBytes</span>(bytes: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, <span class="tok-kw">comptime</span> endian: builtin.Endian) OverflowError!Self {</span> <span class="line" id="L179"> <span class="tok-kw">if</span> (bytes.len == <span class="tok-number">0</span>) <span class="tok-kw">return</span> Self.zero;</span> <span class="line" id="L180"> <span class="tok-kw">var</span> shift: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L181"> <span class="tok-kw">var</span> out = Self.zero;</span> <span class="line" id="L182"> <span class="tok-kw">var</span> out_i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L183"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-kw">switch</span> (endian) {</span> <span class="line" id="L184"> .Big => bytes.len - <span class="tok-number">1</span>,</span> <span class="line" id="L185"> .Little => <span class="tok-number">0</span>,</span> <span class="line" id="L186"> };</span> <span class="line" id="L187"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L188"> <span class="tok-kw">const</span> bi = bytes[i];</span> <span class="line" id="L189"> out.limbs.set(out_i, out.limbs.get(out_i) \| math.shl(Limb, bi, shift));</span> <span class="line" id="L190"> shift += <span class="tok-number">8</span>;</span> <span class="line" id="L191"> <span class="tok-kw">if</span> (shift >= t_bits) {</span> <span class="line" id="L192"> shift -= t_bits;</span> <span class="line" id="L193"> out.limbs.set(out_i, <span class="tok-builtin">@as</span>(TLimb, <span class="tok-builtin">@truncate</span>(out.limbs.get(out_i))));</span> <span class="line" id="L194"> <span class="tok-kw">const</span> overflow = math.shr(Limb, bi, <span class="tok-number">8</span> - shift);</span> <span class="line" id="L195"> out_i += <span class="tok-number">1</span>;</span> <span class="line" id="L196"> <span class="tok-kw">if</span> (out_i >= out.limbs.len) {</span> <span class="line" id="L197"> <span class="tok-kw">if</span> (overflow != <span class="tok-number">0</span> <span class="tok-kw">or</span> i != <span class="tok-number">0</span>) {</span> <span class="line" id="L198"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.Overflow;</span> <span class="line" id="L199"> }</span> <span class="line" id="L200"> <span class="tok-kw">break</span>;</span> <span class="line" id="L201"> }</span> <span class="line" id="L202"> out.limbs.set(out_i, overflow);</span> <span class="line" id="L203"> }</span> <span class="line" id="L204"> <span class="tok-kw">switch</span> (endian) {</span> <span class="line" id="L205"> .Big => {</span> <span class="line" id="L206"> <span class="tok-kw">if</span> (i == <span class="tok-number">0</span>) <span class="tok-kw">break</span>;</span> <span class="line" id="L207"> i -= <span class="tok-number">1</span>;</span> <span class="line" id="L208"> },</span> <span class="line" id="L209"> .Little => {</span> <span class="line" id="L210"> i += <span class="tok-number">1</span>;</span> <span class="line" id="L211"> <span class="tok-kw">if</span> (i == bytes.len) <span class="tok-kw">break</span>;</span> <span class="line" id="L212"> },</span> <span class="line" id="L213"> }</span> <span class="line" id="L214"> }</span> <span class="line" id="L215"> <span class="tok-kw">return</span> out;</span> <span class="line" id="L216"> }</span> <span class="line" id="L217"></span> <span class="line" id="L218"> <span class="tok-comment">/// Returns `true` if both integers are equal.</span></span> <span class="line" id="L219"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">eql</span>(x: Self, y: Self) <span class="tok-type">bool</span> {</span> <span class="line" id="L220"> <span class="tok-kw">return</span> crypto.utils.timingSafeEql([max_limbs_count]Limb, x.limbs.buffer, y.limbs.buffer);</span> <span class="line" id="L221"> }</span> <span class="line" id="L222"></span> <span class="line" id="L223"> <span class="tok-comment">/// Compares two integers.</span></span> <span class="line" id="L224"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">compare</span>(x: Self, y: Self) math.Order {</span> <span class="line" id="L225"> <span class="tok-kw">return</span> crypto.utils.timingSafeCompare(</span> <span class="line" id="L226"> Limb,</span> <span class="line" id="L227"> x.limbs.constSlice(),</span> <span class="line" id="L228"> y.limbs.constSlice(),</span> <span class="line" id="L229"> .Little,</span> <span class="line" id="L230"> );</span> <span class="line" id="L231"> }</span> <span class="line" id="L232"></span> <span class="line" id="L233"> <span class="tok-comment">/// Returns `true` if the integer is zero.</span></span> <span class="line" id="L234"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">isZero</span>(x: Self) <span class="tok-type">bool</span> {</span> <span class="line" id="L235"> <span class="tok-kw">const</span> x_limbs = x.limbs.constSlice();</span> <span class="line" id="L236"> <span class="tok-kw">var</span> t: Limb = <span class="tok-number">0</span>;</span> <span class="line" id="L237"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..x.limbs_count()) \|i\| {</span> <span class="line" id="L238"> t \|= x_limbs[i];</span> <span class="line" id="L239"> }</span> <span class="line" id="L240"> <span class="tok-kw">return</span> ct.eql(t, <span class="tok-number">0</span>);</span> <span class="line" id="L241"> }</span> <span class="line" id="L242"></span> <span class="line" id="L243"> <span class="tok-comment">/// Returns `true` if the integer is odd.</span></span> <span class="line" id="L244"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">isOdd</span>(x: Self) <span class="tok-type">bool</span> {</span> <span class="line" id="L245"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">bool</span>, <span class="tok-builtin">@bitCast</span>(<span class="tok-builtin">@as</span>(<span class="tok-type">u1</span>, <span class="tok-builtin">@truncate</span>(x.limbs.get(<span class="tok-number">0</span>)))));</span> <span class="line" id="L246"> }</span> <span class="line" id="L247"></span> <span class="line" id="L248"> <span class="tok-comment">/// Adds `y` to `x`, and returns `true` if the operation overflowed.</span></span> <span class="line" id="L249"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">addWithOverflow</span>(x: Self, y: Self) <span class="tok-type">u1</span> {</span> <span class="line" id="L250"> <span class="tok-kw">return</span> x.conditionalAddWithOverflow(<span class="tok-null">true</span>, y);</span> <span class="line" id="L251"> }</span> <span class="line" id="L252"></span> <span class="line" id="L253"> <span class="tok-comment">/// Subtracts `y` from `x`, and returns `true` if the operation overflowed.</span></span> <span class="line" id="L254"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">subWithOverflow</span>(x: Self, y: Self) <span class="tok-type">u1</span> {</span> <span class="line" id="L255"> <span class="tok-kw">return</span> x.conditionalSubWithOverflow(<span class="tok-null">true</span>, y);</span> <span class="line" id="L256"> }</span> <span class="line" id="L257"></span> <span class="line" id="L258"> <span class="tok-comment">// Replaces the limbs of `x` with the limbs of `y` if `on` is `true`.</span> </span> <span class="line" id="L259"> <span class="tok-kw">fn</span> <span class="tok-fn">cmov</span>(x: Self, on: <span class="tok-type">bool</span>, y: Self) <span class="tok-type">void</span> {</span> <span class="line" id="L260"> <span class="tok-kw">const</span> x_limbs = x.limbs.slice();</span> <span class="line" id="L261"> <span class="tok-kw">const</span> y_limbs = y.limbs.constSlice();</span> <span class="line" id="L262"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..y.limbs_count()) \|i\| {</span> <span class="line" id="L263"> x_limbs[i] = ct.select(on, y_limbs[i], x_limbs[i]);</span> <span class="line" id="L264"> }</span> <span class="line" id="L265"> }</span> <span class="line" id="L266"></span> <span class="line" id="L267"> <span class="tok-comment">// Adds `y` to `x` if `on` is `true`, and returns `true` if the operation overflowed.</span> </span> <span class="line" id="L268"> <span class="tok-kw">fn</span> <span class="tok-fn">conditionalAddWithOverflow</span>(x: Self, on: <span class="tok-type">bool</span>, y: Self) <span class="tok-type">u1</span> {</span> <span class="line" id="L269"> assert(x.limbs_count() == y.limbs_count()); <span class="tok-comment">// Operands must have the same size.</span> </span> <span class="line" id="L270"> <span class="tok-kw">const</span> x_limbs = x.limbs.slice();</span> <span class="line" id="L271"> <span class="tok-kw">const</span> y_limbs = y.limbs.constSlice();</span> <span class="line" id="L272"></span> <span class="line" id="L273"> <span class="tok-kw">var</span> carry: <span class="tok-type">u1</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L274"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..x.limbs_count()) \|i\| {</span> <span class="line" id="L275"> <span class="tok-kw">const</span> res = x_limbs[i] + y_limbs[i] + carry;</span> <span class="line" id="L276"> x_limbs[i] = ct.select(on, <span class="tok-builtin">@as</span>(TLimb, <span class="tok-builtin">@truncate</span>(res)), x_limbs[i]);</span> <span class="line" id="L277"> carry = <span class="tok-builtin">@as</span>(<span class="tok-type">u1</span>, <span class="tok-builtin">@truncate</span>(res >> t_bits));</span> <span class="line" id="L278"> }</span> <span class="line" id="L279"> <span class="tok-kw">return</span> carry;</span> <span class="line" id="L280"> }</span> <span class="line" id="L281"></span> <span class="line" id="L282"> <span class="tok-comment">// Subtracts `y` from `x` if `on` is `true`, and returns `true` if the operation overflowed.</span> </span> <span class="line" id="L283"> <span class="tok-kw">fn</span> <span class="tok-fn">conditionalSubWithOverflow</span>(x: Self, on: <span class="tok-type">bool</span>, y: Self) <span class="tok-type">u1</span> {</span> <span class="line" id="L284"> assert(x.limbs_count() == y.limbs_count()); <span class="tok-comment">// Operands must have the same size.</span> </span> <span class="line" id="L285"> <span class="tok-kw">const</span> x_limbs = x.limbs.slice();</span> <span class="line" id="L286"> <span class="tok-kw">const</span> y_limbs = y.limbs.constSlice();</span> <span class="line" id="L287"></span> <span class="line" id="L288"> <span class="tok-kw">var</span> borrow: <span class="tok-type">u1</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L289"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..x.limbs_count()) \|i\| {</span> <span class="line" id="L290"> <span class="tok-kw">const</span> res = x_limbs[i] -% y_limbs[i] -% borrow;</span> <span class="line" id="L291"> x_limbs[i] = ct.select(on, <span class="tok-builtin">@as</span>(TLimb, <span class="tok-builtin">@truncate</span>(res)), x_limbs[i]);</span> <span class="line" id="L292"> borrow = <span class="tok-builtin">@as</span>(<span class="tok-type">u1</span>, <span class="tok-builtin">@truncate</span>(res >> t_bits));</span> <span class="line" id="L293"> }</span> <span class="line" id="L294"> <span class="tok-kw">return</span> borrow;</span> <span class="line" id="L295"> }</span> <span class="line" id="L296"> };</span> <span class="line" id="L297">}</span> <span class="line" id="L298"></span> <span class="line" id="L299"><span class="tok-comment">/// A field element.</span></span> <span class="line" id="L300"><span class="tok-kw">fn</span> <span class="tok-fn">Fe_</span>(<span class="tok-kw">comptime</span> bits: <span class="tok-type">comptime_int</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L301"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L302"> <span class="tok-kw">const</span> Self = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L303"></span> <span class="line" id="L304"> <span class="tok-kw">const</span> FeUint = Uint(bits);</span> <span class="line" id="L305"></span> <span class="line" id="L306"> <span class="tok-comment">/// The element value as a `Uint`.</span></span> <span class="line" id="L307"> v: FeUint,</span> <span class="line" id="L308"></span> <span class="line" id="L309"> <span class="tok-comment">/// `true` is the element is in Montgomery form.</span></span> <span class="line" id="L310"> montgomery: <span class="tok-type">bool</span> = <span class="tok-null">false</span>,</span> <span class="line" id="L311"></span> <span class="line" id="L312"> <span class="tok-comment">/// The maximum number of bytes required to encode a field element.</span></span> <span class="line" id="L313"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> encoded_bytes = FeUint.encoded_bytes;</span> <span class="line" id="L314"></span> <span class="line" id="L315"> <span class="tok-comment">// The number of active limbs to represent the field element.</span> </span> <span class="line" id="L316"> <span class="tok-kw">fn</span> <span class="tok-fn">limbs_count</span>(self: Self) <span class="tok-type">usize</span> {</span> <span class="line" id="L317"> <span class="tok-kw">return</span> self.v.limbs_count();</span> <span class="line" id="L318"> }</span> <span class="line" id="L319"></span> <span class="line" id="L320"> <span class="tok-comment">/// Creates a field element from a primitive.</span></span> <span class="line" id="L321"> <span class="tok-comment">/// This function may not run in constant time.</span></span> <span class="line" id="L322"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromPrimitive</span>(<span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>, m: Modulus(bits), x: T) (OverflowError \|\| FieldElementError)!Self {</span> <span class="line" id="L323"> <span class="tok-kw">comptime</span> assert(<span class="tok-builtin">@bitSizeOf</span>(T) <= bits); <span class="tok-comment">// Primitive type is larger than the modulus type.</span> </span> <span class="line" id="L324"> <span class="tok-kw">const</span> v = <span class="tok-kw">try</span> FeUint.fromPrimitive(T, x);</span> <span class="line" id="L325"> <span class="tok-kw">var</span> fe = Self{ .v = v };</span> <span class="line" id="L326"> <span class="tok-kw">try</span> m.shrink(&fe);</span> <span class="line" id="L327"> <span class="tok-kw">try</span> m.rejectNonCanonical(fe);</span> <span class="line" id="L328"> <span class="tok-kw">return</span> fe;</span> <span class="line" id="L329"> }</span> <span class="line" id="L330"></span> <span class="line" id="L331"> <span class="tok-comment">/// Converts the field element to a primitive.</span></span> <span class="line" id="L332"> <span class="tok-comment">/// This function may not run in constant time.</span></span> <span class="line" id="L333"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toPrimitive</span>(self: Self, <span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>) OverflowError!T {</span> <span class="line" id="L334"> <span class="tok-kw">return</span> self.v.toPrimitive(T);</span> <span class="line" id="L335"> }</span> <span class="line" id="L336"></span> <span class="line" id="L337"> <span class="tok-comment">/// Creates a field element from a byte string.</span></span> <span class="line" id="L338"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromBytes</span>(m: Modulus(bits), bytes: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, <span class="tok-kw">comptime</span> endian: builtin.Endian) (OverflowError \|\| FieldElementError)!Self {</span> <span class="line" id="L339"> <span class="tok-kw">const</span> v = <span class="tok-kw">try</span> FeUint.fromBytes(bytes, endian);</span> <span class="line" id="L340"> <span class="tok-kw">var</span> fe = Self{ .v = v };</span> <span class="line" id="L341"> <span class="tok-kw">try</span> m.shrink(&fe);</span> <span class="line" id="L342"> <span class="tok-kw">try</span> m.rejectNonCanonical(fe);</span> <span class="line" id="L343"> <span class="tok-kw">return</span> fe;</span> <span class="line" id="L344"> }</span> <span class="line" id="L345"></span> <span class="line" id="L346"> <span class="tok-comment">/// Converts the field element to a byte string.</span></span> <span class="line" id="L347"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toBytes</span>(self: Self, bytes: []<span class="tok-type">u8</span>, <span class="tok-kw">comptime</span> endian: builtin.Endian) OverflowError!<span class="tok-type">void</span> {</span> <span class="line" id="L348"> <span class="tok-kw">return</span> self.v.toBytes(bytes, endian);</span> <span class="line" id="L349"> }</span> <span class="line" id="L350"></span> <span class="line" id="L351"> <span class="tok-comment">/// Returns `true` if the field elements are equal, in constant time.</span></span> <span class="line" id="L352"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">eql</span>(x: Self, y: Self) <span class="tok-type">bool</span> {</span> <span class="line" id="L353"> <span class="tok-kw">return</span> x.v.eql(y.v);</span> <span class="line" id="L354"> }</span> <span class="line" id="L355"></span> <span class="line" id="L356"> <span class="tok-comment">/// Compares two field elements in constant time.</span></span> <span class="line" id="L357"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">compare</span>(x: Self, y: Self) math.Order {</span> <span class="line" id="L358"> <span class="tok-kw">return</span> x.v.compare(y.v);</span> <span class="line" id="L359"> }</span> <span class="line" id="L360"></span> <span class="line" id="L361"> <span class="tok-comment">/// Returns `true` if the element is zero.</span></span> <span class="line" id="L362"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">isZero</span>(self: Self) <span class="tok-type">bool</span> {</span> <span class="line" id="L363"> <span class="tok-kw">return</span> self.v.isZero();</span> <span class="line" id="L364"> }</span> <span class="line" id="L365"></span> <span class="line" id="L366"> <span class="tok-comment">/// Returns `true` is the element is odd.</span></span> <span class="line" id="L367"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">isOdd</span>(self: Self) <span class="tok-type">bool</span> {</span> <span class="line" id="L368"> <span class="tok-kw">return</span> self.v.isOdd();</span> <span class="line" id="L369"> }</span> <span class="line" id="L370"> };</span> <span class="line" id="L371">}</span> <span class="line" id="L372"></span> <span class="line" id="L373"><span class="tok-comment">/// A modulus, defining a finite field.</span></span> <span class="line" id="L374"><span class="tok-comment">/// All operations within the field are performed modulo this modulus, without heap allocations.</span></span> <span class="line" id="L375"><span class="tok-comment">/// `max_bits` represents the number of bits in the maximum value the modulus can be set to.</span></span> <span class="line" id="L376"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">Modulus</span>(<span class="tok-kw">comptime</span> max_bits: <span class="tok-type">comptime_int</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L377"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L378"> <span class="tok-kw">const</span> Self = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L379"></span> <span class="line" id="L380"> <span class="tok-comment">/// A field element, representing a value within the field defined by this modulus.</span></span> <span class="line" id="L381"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Fe = Fe_(max_bits);</span> <span class="line" id="L382"></span> <span class="line" id="L383"> <span class="tok-kw">const</span> FeUint = Fe.FeUint;</span> <span class="line" id="L384"></span> <span class="line" id="L385"> <span class="tok-comment">/// The neutral element.</span></span> <span class="line" id="L386"> zero: Fe,</span> <span class="line" id="L387"></span> <span class="line" id="L388"> <span class="tok-comment">/// The modulus value.</span></span> <span class="line" id="L389"> v: FeUint,</span> <span class="line" id="L390"></span> <span class="line" id="L391"> <span class="tok-comment">/// R^2 for the Montgomery representation.</span></span> <span class="line" id="L392"> rr: Fe,</span> <span class="line" id="L393"> <span class="tok-comment">/// Inverse of the first limb</span></span> <span class="line" id="L394"> m0inv: Limb,</span> <span class="line" id="L395"> <span class="tok-comment">/// Number of leading zero bits in the modulus.</span></span> <span class="line" id="L396"> leading: <span class="tok-type">usize</span>,</span> <span class="line" id="L397"></span> <span class="line" id="L398"> <span class="tok-comment">// Number of active limbs in the modulus.</span> </span> <span class="line" id="L399"> <span class="tok-kw">fn</span> <span class="tok-fn">limbs_count</span>(self: Self) <span class="tok-type">usize</span> {</span> <span class="line" id="L400"> <span class="tok-kw">return</span> self.v.limbs_count();</span> <span class="line" id="L401"> }</span> <span class="line" id="L402"></span> <span class="line" id="L403"> <span class="tok-comment">/// Actual size of the modulus, in bits.</span></span> <span class="line" id="L404"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">bits</span>(self: Self) <span class="tok-type">usize</span> {</span> <span class="line" id="L405"> <span class="tok-kw">return</span> self.limbs_count() t_bits - self.leading;</span> <span class="line" id="L406"> }</span> <span class="line" id="L407"></span> <span class="line" id="L408"> <span class="tok-comment">/// Returns the element `1`.</span></span> <span class="line" id="L409"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">one</span>(self: Self) Fe {</span> <span class="line" id="L410"> <span class="tok-kw">var</span> fe = self.zero;</span> <span class="line" id="L411"> fe.v.limbs.set(<span class="tok-number">0</span>, <span class="tok-number">1</span>);</span> <span class="line" id="L412"> <span class="tok-kw">return</span> fe;</span> <span class="line" id="L413"> }</span> <span class="line" id="L414"></span> <span class="line" id="L415"> <span class="tok-comment">/// Creates a new modulus from a `Uint` value.</span></span> <span class="line" id="L416"> <span class="tok-comment">/// The modulus must be odd and larger than 2.</span></span> <span class="line" id="L417"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromUint</span>(v_: FeUint) InvalidModulusError!Self {</span> <span class="line" id="L418"> <span class="tok-kw">if</span> (!v_.isOdd()) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.EvenModulus;</span> <span class="line" id="L419"></span> <span class="line" id="L420"> <span class="tok-kw">var</span> v = v_.normalize();</span> <span class="line" id="L421"> <span class="tok-kw">const</span> hi = v.limbs.get(v.limbs_count() - <span class="tok-number">1</span>);</span> <span class="line" id="L422"> <span class="tok-kw">const</span> lo = v.limbs.get(<span class="tok-number">0</span>);</span> <span class="line" id="L423"></span> <span class="line" id="L424"> <span class="tok-kw">if</span> (v.limbs_count() < <span class="tok-number">2</span> <span class="tok-kw">and</span> lo < <span class="tok-number">3</span>) {</span> <span class="line" id="L425"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.ModulusTooSmall;</span> <span class="line" id="L426"> }</span> <span class="line" id="L427"></span> <span class="line" id="L428"> <span class="tok-kw">const</span> leading = <span class="tok-builtin">@clz</span>(hi) - carry_bits;</span> <span class="line" id="L429"></span> <span class="line" id="L430"> <span class="tok-kw">var</span> y = lo;</span> <span class="line" id="L431"></span> <span class="line" id="L432"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..<span class="tok-kw">comptime</span> math.log2_int(<span class="tok-type">usize</span>, t_bits)) \|_\| {</span> <span class="line" id="L433"> y = y % (<span class="tok-number">2</span> -% lo % y);</span> <span class="line" id="L434"> }</span> <span class="line" id="L435"> <span class="tok-kw">const</span> m0inv = (<span class="tok-builtin">@as</span>(Limb, <span class="tok-number">1</span>) << t_bits) - (<span class="tok-builtin">@as</span>(TLimb, <span class="tok-builtin">@truncate</span>(y)));</span> <span class="line" id="L436"></span> <span class="line" id="L437"> <span class="tok-kw">const</span> zero = Fe{ .v = FeUint.zero };</span> <span class="line" id="L438"></span> <span class="line" id="L439"> <span class="tok-kw">var</span> m = Self{</span> <span class="line" id="L440"> .zero = zero,</span> <span class="line" id="L441"> .v = v,</span> <span class="line" id="L442"> .leading = leading,</span> <span class="line" id="L443"> .m0inv = m0inv,</span> <span class="line" id="L444"> .rr = <span class="tok-null">undefined</span>, <span class="tok-comment">// will be computed right after</span> </span> <span class="line" id="L445"> };</span> <span class="line" id="L446"> m.shrink(&m.zero) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L447"> computeRR(&m);</span> <span class="line" id="L448"></span> <span class="line" id="L449"> <span class="tok-kw">return</span> m;</span> <span class="line" id="L450"> }</span> <span class="line" id="L451"></span> <span class="line" id="L452"> <span class="tok-comment">/// Creates a new modulus from a primitive value.</span></span> <span class="line" id="L453"> <span class="tok-comment">/// The modulus must be odd and larger than 2.</span></span> <span class="line" id="L454"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromPrimitive</span>(<span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>, x: T) (InvalidModulusError \|\| OverflowError)!Self {</span> <span class="line" id="L455"> <span class="tok-kw">comptime</span> assert(<span class="tok-builtin">@bitSizeOf</span>(T) <= max_bits); <span class="tok-comment">// Primitive type is larger than the modulus type.</span> </span> <span class="line" id="L456"> <span class="tok-kw">const</span> v = <span class="tok-kw">try</span> FeUint.fromPrimitive(T, x);</span> <span class="line" id="L457"> <span class="tok-kw">return</span> <span class="tok-kw">try</span> Self.fromUint(v);</span> <span class="line" id="L458"> }</span> <span class="line" id="L459"></span> <span class="line" id="L460"> <span class="tok-comment">/// Creates a new modulus from a byte string.</span></span> <span class="line" id="L461"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromBytes</span>(bytes: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, <span class="tok-kw">comptime</span> endian: builtin.Endian) (InvalidModulusError \|\| OverflowError)!Self {</span> <span class="line" id="L462"> <span class="tok-kw">const</span> v = <span class="tok-kw">try</span> FeUint.fromBytes(bytes, endian);</span> <span class="line" id="L463"> <span class="tok-kw">return</span> <span class="tok-kw">try</span> Self.fromUint(v);</span> <span class="line" id="L464"> }</span> <span class="line" id="L465"></span> <span class="line" id="L466"> <span class="tok-comment">/// Serializes the modulus to a byte string.</span></span> <span class="line" id="L467"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toBytes</span>(self: Self, bytes: []<span class="tok-type">u8</span>, <span class="tok-kw">comptime</span> endian: builtin.Endian) OverflowError!<span class="tok-type">void</span> {</span> <span class="line" id="L468"> <span class="tok-kw">return</span> self.v.toBytes(bytes, endian);</span> <span class="line" id="L469"> }</span> <span class="line" id="L470"></span> <span class="line" id="L471"> <span class="tok-comment">/// Rejects field elements that are not in the canonical form.</span></span> <span class="line" id="L472"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">rejectNonCanonical</span>(self: Self, fe: Fe) <span class="tok-kw">error</span>{NonCanonical}!<span class="tok-type">void</span> {</span> <span class="line" id="L473"> <span class="tok-kw">if</span> (fe.limbs_count() != self.limbs_count() <span class="tok-kw">or</span> ct.limbsCmpGeq(fe.v, self.v)) {</span> <span class="line" id="L474"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.NonCanonical;</span> <span class="line" id="L475"> }</span> <span class="line" id="L476"> }</span> <span class="line" id="L477"></span> <span class="line" id="L478"> <span class="tok-comment">// Makes the number of active limbs in a field element match the one of the modulus.</span> </span> <span class="line" id="L479"> <span class="tok-kw">fn</span> <span class="tok-fn">shrink</span>(self: Self, fe: Fe) OverflowError!<span class="tok-type">void</span> {</span> <span class="line" id="L480"> <span class="tok-kw">const</span> new_len = self.limbs_count();</span> <span class="line" id="L481"> <span class="tok-kw">if</span> (fe.limbs_count() < new_len) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.Overflow;</span> <span class="line" id="L482"> <span class="tok-kw">var</span> acc: Limb = <span class="tok-number">0</span>;</span> <span class="line" id="L483"> <span class="tok-kw">for</span> (fe.v.limbs.constSlice()[new_len..]) \|limb\| {</span> <span class="line" id="L484"> acc \|= limb;</span> <span class="line" id="L485"> }</span> <span class="line" id="L486"> <span class="tok-kw">if</span> (acc != <span class="tok-number">0</span>) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.Overflow;</span> <span class="line" id="L487"> <span class="tok-kw">try</span> fe.v.limbs.resize(new_len);</span> <span class="line" id="L488"> }</span> <span class="line" id="L489"></span> <span class="line" id="L490"> <span class="tok-comment">// Computes R^2 for the Montgomery representation.</span> </span> <span class="line" id="L491"> <span class="tok-kw">fn</span> <span class="tok-fn">computeRR</span>(self: Self) <span class="tok-type">void</span> {</span> <span class="line" id="L492"> self.rr = self.zero;</span> <span class="line" id="L493"> <span class="tok-kw">const</span> n = self.rr.limbs_count();</span> <span class="line" id="L494"> self.rr.v.limbs.set(n - <span class="tok-number">1</span>, <span class="tok-number">1</span>);</span> <span class="line" id="L495"> <span class="tok-kw">for</span> ((n - <span class="tok-number">1</span>)..(<span class="tok-number">2</span> * n)) \|_\| {</span> <span class="line" id="L496"> self.shiftIn(&self.rr, <span class="tok-number">0</span>);</span> <span class="line" id="L497"> }</span> <span class="line" id="L498"> self.shrink(&self.rr) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L499"> }</span> <span class="line" id="L500"></span> <span class="line" id="L501"> <span class="tok-comment">/// Computes x << t_bits + y (mod m)</span></span> <span class="line" id="L502"> <span class="tok-kw">fn</span> <span class="tok-fn">shiftIn</span>(self: Self, x: Fe, y: Limb) <span class="tok-type">void</span> {</span> <span class="line" id="L503"> <span class="tok-kw">var</span> d = self.zero;</span> <span class="line" id="L504"> <span class="tok-kw">const</span> x_limbs = x.v.limbs.slice();</span> <span class="line" id="L505"> <span class="tok-kw">const</span> d_limbs = d.v.limbs.slice();</span> <span class="line" id="L506"> <span class="tok-kw">const</span> m_limbs = self.v.limbs.constSlice();</span> <span class="line" id="L507"></span> <span class="line" id="L508"> <span class="tok-kw">var</span> need_sub = <span class="tok-null">false</span>;</span> <span class="line" id="L509"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = t_bits - <span class="tok-number">1</span>;</span> <span class="line" id="L510"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) : (i -= <span class="tok-number">1</span>) {</span> <span class="line" id="L511"> <span class="tok-kw">var</span> carry = <span class="tok-builtin">@as</span>(<span class="tok-type">u1</span>, <span class="tok-builtin">@truncate</span>(math.shr(Limb, y, i)));</span> <span class="line" id="L512"> <span class="tok-kw">var</span> borrow: <span class="tok-type">u1</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L513"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..self.limbs_count()) \|j\| {</span> <span class="line" id="L514"> <span class="tok-kw">const</span> l = ct.select(need_sub, d_limbs[j], x_limbs[j]);</span> <span class="line" id="L515"> <span class="tok-kw">var</span> res = (l << <span class="tok-number">1</span>) + carry;</span> <span class="line" id="L516"> x_limbs[j] = <span class="tok-builtin">@as</span>(TLimb, <span class="tok-builtin">@truncate</span>(res));</span> <span class="line" id="L517"> carry = <span class="tok-builtin">@as</span>(<span class="tok-type">u1</span>, <span class="tok-builtin">@truncate</span>(res >> t_bits));</span> <span class="line" id="L518"></span> <span class="line" id="L519"> res = x_limbs[j] -% m_limbs[j] -% borrow;</span> <span class="line" id="L520"> d_limbs[j] = <span class="tok-builtin">@as</span>(TLimb, <span class="tok-builtin">@truncate</span>(res));</span> <span class="line" id="L521"></span> <span class="line" id="L522"> borrow = <span class="tok-builtin">@as</span>(<span class="tok-type">u1</span>, <span class="tok-builtin">@truncate</span>(res >> t_bits));</span> <span class="line" id="L523"> }</span> <span class="line" id="L524"> need_sub = ct.eql(carry, borrow);</span> <span class="line" id="L525"> <span class="tok-kw">if</span> (i == <span class="tok-number">0</span>) <span class="tok-kw">break</span>;</span> <span class="line" id="L526"> }</span> <span class="line" id="L527"> x.v.cmov(need_sub, d.v);</span> <span class="line" id="L528"> }</span> <span class="line" id="L529"></span> <span class="line" id="L530"> <span class="tok-comment">/// Adds two field elements (mod m).</span></span> <span class="line" id="L531"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">add</span>(self: Self, x: Fe, y: Fe) Fe {</span> <span class="line" id="L532"> <span class="tok-kw">var</span> out = x;</span> <span class="line" id="L533"> <span class="tok-kw">const</span> overflow = out.v.addWithOverflow(y.v);</span> <span class="line" id="L534"> <span class="tok-kw">const</span> underflow = <span class="tok-builtin">@as</span>(<span class="tok-type">u1</span>, <span class="tok-builtin">@bitCast</span>(ct.limbsCmpLt(out.v, self.v)));</span> <span class="line" id="L535"> <span class="tok-kw">const</span> need_sub = ct.eql(overflow, underflow);</span> <span class="line" id="L536"> _ = out.v.conditionalSubWithOverflow(need_sub, self.v);</span> <span class="line" id="L537"> <span class="tok-kw">return</span> out;</span> <span class="line" id="L538"> }</span> <span class="line" id="L539"></span> <span class="line" id="L540"> <span class="tok-comment">/// Subtracts two field elements (mod m).</span></span> <span class="line" id="L541"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">sub</span>(self: Self, x: Fe, y: Fe) Fe {</span> <span class="line" id="L542"> <span class="tok-kw">var</span> out = x;</span> <span class="line" id="L543"> <span class="tok-kw">const</span> underflow = <span class="tok-builtin">@as</span>(<span class="tok-type">bool</span>, <span class="tok-builtin">@bitCast</span>(out.v.subWithOverflow(y.v)));</span> <span class="line" id="L544"> _ = out.v.conditionalAddWithOverflow(underflow, self.v);</span> <span class="line" id="L545"> <span class="tok-kw">return</span> out;</span> <span class="line" id="L546"> }</span> <span class="line" id="L547"></span> <span class="line" id="L548"> <span class="tok-comment">/// Converts a field element to the Montgomery form.</span></span> <span class="line" id="L549"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toMontgomery</span>(self: Self, x: Fe) RepresentationError!<span class="tok-type">void</span> {</span> <span class="line" id="L550"> <span class="tok-kw">if</span> (x.montgomery) {</span> <span class="line" id="L551"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnexpectedRepresentation;</span> <span class="line" id="L552"> }</span> <span class="line" id="L553"> self.shrink(x) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L554"> x.* = self.montgomeryMul(x., self.rr);</span> <span class="line" id="L555"> x.montgomery = <span class="tok-null">true</span>;</span> <span class="line" id="L556"> }</span> <span class="line" id="L557"></span> <span class="line" id="L558"> <span class="tok-comment">/// Takes a field element out of the Montgomery form.</span></span> <span class="line" id="L559"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromMontgomery</span>(self: Self, x: Fe) RepresentationError!<span class="tok-type">void</span> {</span> <span class="line" id="L560"> <span class="tok-kw">if</span> (!x.montgomery) {</span> <span class="line" id="L561"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnexpectedRepresentation;</span> <span class="line" id="L562"> }</span> <span class="line" id="L563"> self.shrink(x) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L564"> x.* = self.montgomeryMul(x., self.one());</span> <span class="line" id="L565"> x.montgomery = <span class="tok-null">false</span>;</span> <span class="line" id="L566"> }</span> <span class="line" id="L567"></span> <span class="line" id="L568"> <span class="tok-comment">/// Reduces an arbitrary `Uint`, converting it to a field element.</span></span> <span class="line" id="L569"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">reduce</span>(self: Self, x: <span class="tok-kw">anytype</span>) Fe {</span> <span class="line" id="L570"> <span class="tok-kw">var</span> out = self.zero;</span> <span class="line" id="L571"> <span class="tok-kw">var</span> i = x.limbs_count() - <span class="tok-number">1</span>;</span> <span class="line" id="L572"> <span class="tok-kw">if</span> (self.limbs_count() >= <span class="tok-number">2</span>) {</span> <span class="line" id="L573"> <span class="tok-kw">const</span> start = <span class="tok-builtin">@min</span>(i, self.limbs_count() - <span class="tok-number">2</span>);</span> <span class="line" id="L574"> <span class="tok-kw">var</span> j = start;</span> <span class="line" id="L575"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) : (j -= <span class="tok-number">1</span>) {</span> <span class="line" id="L576"> out.v.limbs.set(j, x.limbs.get(i));</span> <span class="line" id="L577"> i -= <span class="tok-number">1</span>;</span> <span class="line" id="L578"> <span class="tok-kw">if</span> (j == <span class="tok-number">0</span>) <span class="tok-kw">break</span>;</span> <span class="line" id="L579"> }</span> <span class="line" id="L580"> }</span> <span class="line" id="L581"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) : (i -= <span class="tok-number">1</span>) {</span> <span class="line" id="L582"> self.shiftIn(&out, x.limbs.get(i));</span> <span class="line" id="L583"> <span class="tok-kw">if</span> (i == <span class="tok-number">0</span>) <span class="tok-kw">break</span>;</span> <span class="line" id="L584"> }</span> <span class="line" id="L585"> <span class="tok-kw">return</span> out;</span> <span class="line" id="L586"> }</span> <span class="line" id="L587"></span> <span class="line" id="L588"> <span class="tok-kw">fn</span> <span class="tok-fn">montgomeryLoop</span>(self: Self, d: Fe, x: Fe, y: Fe) <span class="tok-type">u1</span> {</span> <span class="line" id="L589"> assert(d.limbs_count() == x.limbs_count());</span> <span class="line" id="L590"> assert(d.limbs_count() == y.limbs_count());</span> <span class="line" id="L591"> assert(d.limbs_count() == self.limbs_count());</span> <span class="line" id="L592"></span> <span class="line" id="L593"> <span class="tok-kw">const</span> a_limbs = x.v.limbs.constSlice();</span> <span class="line" id="L594"> <span class="tok-kw">const</span> b_limbs = y.v.limbs.constSlice();</span> <span class="line" id="L595"> <span class="tok-kw">const</span> d_limbs = d.v.limbs.slice();</span> <span class="line" id="L596"> <span class="tok-kw">const</span> m_limbs = self.v.limbs.constSlice();</span> <span class="line" id="L597"></span> <span class="line" id="L598"> <span class="tok-kw">var</span> overflow: <span class="tok-type">u1</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L599"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..self.limbs_count()) \|i\| {</span> <span class="line" id="L600"> <span class="tok-kw">var</span> carry: Limb = <span class="tok-number">0</span>;</span> <span class="line" id="L601"></span> <span class="line" id="L602"> <span class="tok-kw">var</span> wide = ct.mulWide(a_limbs[i], b_limbs[<span class="tok-number">0</span>]);</span> <span class="line" id="L603"> <span class="tok-kw">var</span> z_lo = <span class="tok-builtin">@addWithOverflow</span>(d_limbs[<span class="tok-number">0</span>], wide.lo);</span> <span class="line" id="L604"> <span class="tok-kw">const</span> f = <span class="tok-builtin">@as</span>(TLimb, <span class="tok-builtin">@truncate</span>(z_lo[<span class="tok-number">0</span>] % self.m0inv));</span> <span class="line" id="L605"> <span class="tok-kw">var</span> z_hi = wide.hi +% z_lo[<span class="tok-number">1</span>];</span> <span class="line" id="L606"> wide = ct.mulWide(f, m_limbs[<span class="tok-number">0</span>]);</span> <span class="line" id="L607"> z_lo = <span class="tok-builtin">@addWithOverflow</span>(z_lo[<span class="tok-number">0</span>], wide.lo);</span> <span class="line" id="L608"> z_hi +%= z_lo[<span class="tok-number">1</span>];</span> <span class="line" id="L609"> z_hi +%= wide.hi;</span> <span class="line" id="L610"> carry = (z_hi << <span class="tok-number">1</span>) \| (z_lo[<span class="tok-number">0</span>] >> t_bits);</span> <span class="line" id="L611"></span> <span class="line" id="L612"> <span class="tok-kw">for</span> (<span class="tok-number">1</span>..self.limbs_count()) \|j\| {</span> <span class="line" id="L613"> wide = ct.mulWide(a_limbs[i], b_limbs[j]);</span> <span class="line" id="L614"> z_lo = <span class="tok-builtin">@addWithOverflow</span>(d_limbs[j], wide.lo);</span> <span class="line" id="L615"> z_hi = wide.hi +% z_lo[<span class="tok-number">1</span>];</span> <span class="line" id="L616"> wide = ct.mulWide(f, m_limbs[j]);</span> <span class="line" id="L617"> z_lo = <span class="tok-builtin">@addWithOverflow</span>(z_lo[<span class="tok-number">0</span>], wide.lo);</span> <span class="line" id="L618"> z_hi +%= z_lo[<span class="tok-number">1</span>];</span> <span class="line" id="L619"> z_hi +%= wide.hi;</span> <span class="line" id="L620"> z_lo = <span class="tok-builtin">@addWithOverflow</span>(z_lo[<span class="tok-number">0</span>], carry);</span> <span class="line" id="L621"> z_hi +%= z_lo[<span class="tok-number">1</span>];</span> <span class="line" id="L622"> <span class="tok-kw">if</span> (j > <span class="tok-number">0</span>) {</span> <span class="line" id="L623"> d_limbs[j - <span class="tok-number">1</span>] = <span class="tok-builtin">@as</span>(TLimb, <span class="tok-builtin">@truncate</span>(z_lo[<span class="tok-number">0</span>]));</span> <span class="line" id="L624"> }</span> <span class="line" id="L625"> carry = (z_hi << <span class="tok-number">1</span>) \| (z_lo[<span class="tok-number">0</span>] >> t_bits);</span> <span class="line" id="L626"> }</span> <span class="line" id="L627"> <span class="tok-kw">const</span> z = overflow + carry;</span> <span class="line" id="L628"> d_limbs[self.limbs_count() - <span class="tok-number">1</span>] = <span class="tok-builtin">@as</span>(TLimb, <span class="tok-builtin">@truncate</span>(z));</span> <span class="line" id="L629"> overflow = <span class="tok-builtin">@as</span>(<span class="tok-type">u1</span>, <span class="tok-builtin">@truncate</span>(z >> t_bits));</span> <span class="line" id="L630"> }</span> <span class="line" id="L631"> <span class="tok-kw">return</span> overflow;</span> <span class="line" id="L632"> }</span> <span class="line" id="L633"></span> <span class="line" id="L634"> <span class="tok-comment">// Montgomery multiplication.</span> </span> <span class="line" id="L635"> <span class="tok-kw">fn</span> <span class="tok-fn">montgomeryMul</span>(self: Self, x: Fe, y: Fe) Fe {</span> <span class="line" id="L636"> <span class="tok-kw">var</span> d = self.zero;</span> <span class="line" id="L637"> assert(x.limbs_count() == self.limbs_count());</span> <span class="line" id="L638"> assert(y.limbs_count() == self.limbs_count());</span> <span class="line" id="L639"> <span class="tok-kw">const</span> overflow = self.montgomeryLoop(&d, x, y);</span> <span class="line" id="L640"> <span class="tok-kw">const</span> underflow = <span class="tok-number">1</span> -% <span class="tok-builtin">@intFromBool</span>(ct.limbsCmpGeq(d.v, self.v));</span> <span class="line" id="L641"> <span class="tok-kw">const</span> need_sub = ct.eql(overflow, underflow);</span> <span class="line" id="L642"> _ = d.v.conditionalSubWithOverflow(need_sub, self.v);</span> <span class="line" id="L643"> d.montgomery = x.montgomery == y.montgomery;</span> <span class="line" id="L644"> <span class="tok-kw">return</span> d;</span> <span class="line" id="L645"> }</span> <span class="line" id="L646"></span> <span class="line" id="L647"> <span class="tok-comment">// Montgomery squaring.</span> </span> <span class="line" id="L648"> <span class="tok-kw">fn</span> <span class="tok-fn">montgomerySq</span>(self: Self, x: Fe) Fe {</span> <span class="line" id="L649"> <span class="tok-kw">var</span> d = self.zero;</span> <span class="line" id="L650"> assert(x.limbs_count() == self.limbs_count());</span> <span class="line" id="L651"> <span class="tok-kw">const</span> overflow = self.montgomeryLoop(&d, x, x);</span> <span class="line" id="L652"> <span class="tok-kw">const</span> underflow = <span class="tok-number">1</span> -% <span class="tok-builtin">@intFromBool</span>(ct.limbsCmpGeq(d.v, self.v));</span> <span class="line" id="L653"> <span class="tok-kw">const</span> need_sub = ct.eql(overflow, underflow);</span> <span class="line" id="L654"> _ = d.v.conditionalSubWithOverflow(need_sub, self.v);</span> <span class="line" id="L655"> d.montgomery = <span class="tok-null">true</span>;</span> <span class="line" id="L656"> <span class="tok-kw">return</span> d;</span> <span class="line" id="L657"> }</span> <span class="line" id="L658"></span> <span class="line" id="L659"> <span class="tok-comment">/// Multiplies two field elements.</span></span> <span class="line" id="L660"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">mul</span>(self: Self, x: Fe, y: Fe) Fe {</span> <span class="line" id="L661"> <span class="tok-kw">if</span> (x.montgomery != y.montgomery) {</span> <span class="line" id="L662"> <span class="tok-kw">return</span> self.montgomeryMul(x, y);</span> <span class="line" id="L663"> }</span> <span class="line" id="L664"> <span class="tok-kw">var</span> a_ = x;</span> <span class="line" id="L665"> <span class="tok-kw">if</span> (x.montgomery == <span class="tok-null">false</span>) {</span> <span class="line" id="L666"> self.toMontgomery(&a_) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L667"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L668"> self.fromMontgomery(&a_) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L669"> }</span> <span class="line" id="L670"> <span class="tok-kw">return</span> self.montgomeryMul(a_, y);</span> <span class="line" id="L671"> }</span> <span class="line" id="L672"></span> <span class="line" id="L673"> <span class="tok-comment">/// Squares a field element.</span></span> <span class="line" id="L674"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">sq</span>(self: Self, x: Fe) Fe {</span> <span class="line" id="L675"> <span class="tok-kw">var</span> out = x;</span> <span class="line" id="L676"> <span class="tok-kw">if</span> (x.montgomery == <span class="tok-null">true</span>) {</span> <span class="line" id="L677"> self.fromMontgomery(&out) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L678"> }</span> <span class="line" id="L679"> out = self.montgomerySq(out);</span> <span class="line" id="L680"> out.montgomery = <span class="tok-null">false</span>;</span> <span class="line" id="L681"> self.toMontgomery(&out) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L682"> <span class="tok-kw">return</span> out;</span> <span class="line" id="L683"> }</span> <span class="line" id="L684"></span> <span class="line" id="L685"> <span class="tok-comment">/// Returns x^e (mod m) in constant time.</span></span> <span class="line" id="L686"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">pow</span>(self: Self, x: Fe, e: Fe) NullExponentError!Fe {</span> <span class="line" id="L687"> <span class="tok-kw">var</span> buf: [Fe.encoded_bytes]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L688"> e.toBytes(&buf, native_endian) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L689"> <span class="tok-kw">return</span> self.powWithEncodedExponent(x, &buf, native_endian);</span> <span class="line" id="L690"> }</span> <span class="line" id="L691"></span> <span class="line" id="L692"> <span class="tok-comment">/// Returns x^e (mod m), assuming that the exponent is public.</span></span> <span class="line" id="L693"> <span class="tok-comment">/// The function remains constant time with respect to `x`.</span></span> <span class="line" id="L694"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">powPublic</span>(self: Self, x: Fe, e: Fe) NullExponentError!Fe {</span> <span class="line" id="L695"> <span class="tok-kw">var</span> e_normalized = Fe{ .v = e.v.normalize() };</span> <span class="line" id="L696"> <span class="tok-kw">var</span> buf_: [Fe.encoded_bytes]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L697"> <span class="tok-kw">var</span> buf = buf_[<span class="tok-number">0</span> .. math.divCeil(<span class="tok-type">usize</span>, e_normalized.v.limbs_count() t_bits, <span class="tok-number">8</span>) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>];</span> <span class="line" id="L698"> e_normalized.toBytes(buf, .Little) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L699"> <span class="tok-kw">const</span> leading = <span class="tok-builtin">@clz</span>(e_normalized.v.limbs.get(e_normalized.v.limbs_count() - carry_bits));</span> <span class="line" id="L700"> buf = buf[<span class="tok-number">0</span> .. buf.len - leading / <span class="tok-number">8</span>];</span> <span class="line" id="L701"> <span class="tok-kw">return</span> self.powWithEncodedExponent(x, buf, .Little);</span> <span class="line" id="L702"> }</span> <span class="line" id="L703"></span> <span class="line" id="L704"> <span class="tok-comment">/// Returns x^e (mod m), assuming that the exponent is public, and provided as a byte string.</span></span> <span class="line" id="L705"> <span class="tok-comment">/// Exponents are usually small, so this function is faster than `powPublic` as a field element</span></span> <span class="line" id="L706"> <span class="tok-comment">/// doesn't have to be created if a serialized representation is already available.</span></span> <span class="line" id="L707"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">powWithEncodedExponent</span>(self: Self, x: Fe, e: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, endian: builtin.Endian) NullExponentError!Fe {</span> <span class="line" id="L708"> <span class="tok-kw">var</span> acc: <span class="tok-type">u8</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L709"> <span class="tok-kw">for</span> (e) \|b\| acc \|= b;</span> <span class="line" id="L710"> <span class="tok-kw">if</span> (acc == <span class="tok-number">0</span>) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.NullExponent;</span> <span class="line" id="L711"></span> <span class="line" id="L712"> <span class="tok-kw">var</span> pc = [<span class="tok-number">1</span>]Fe{x} ++ [_]Fe{self.zero} ** <span class="tok-number">14</span>;</span> <span class="line" id="L713"> <span class="tok-kw">if</span> (x.montgomery == <span class="tok-null">false</span>) {</span> <span class="line" id="L714"> self.toMontgomery(&pc[<span class="tok-number">0</span>]) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L715"> }</span> <span class="line" id="L716"> <span class="tok-kw">for</span> (<span class="tok-number">1</span>..pc.len) \|i\| {</span> <span class="line" id="L717"> pc[i] = self.montgomeryMul(pc[i - <span class="tok-number">1</span>], pc[<span class="tok-number">0</span>]);</span> <span class="line" id="L718"> }</span> <span class="line" id="L719"> <span class="tok-kw">var</span> out = self.one();</span> <span class="line" id="L720"> self.toMontgomery(&out) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L721"> <span class="tok-kw">var</span> t0 = self.zero;</span> <span class="line" id="L722"> <span class="tok-kw">var</span> s = <span class="tok-kw">switch</span> (endian) {</span> <span class="line" id="L723"> .Big => <span class="tok-number">0</span>,</span> <span class="line" id="L724"> .Little => e.len - <span class="tok-number">1</span>,</span> <span class="line" id="L725"> };</span> <span class="line" id="L726"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L727"> <span class="tok-kw">const</span> b = e[s];</span> <span class="line" id="L728"> <span class="tok-kw">for</span> ([_]<span class="tok-type">u3</span>{ <span class="tok-number">4</span>, <span class="tok-number">0</span> }) \|j\| {</span> <span class="line" id="L729"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..<span class="tok-number">4</span>) \|_\| {</span> <span class="line" id="L730"> out = self.montgomerySq(out);</span> <span class="line" id="L731"> }</span> <span class="line" id="L732"> <span class="tok-kw">const</span> k = (b >> j) & <span class="tok-number">0b1111</span>;</span> <span class="line" id="L733"> <span class="tok-kw">if</span> (std.options.side_channels_mitigations == .none) {</span> <span class="line" id="L734"> <span class="tok-kw">if</span> (k == <span class="tok-number">0</span>) <span class="tok-kw">continue</span>;</span> <span class="line" id="L735"> t0 = pc[k - <span class="tok-number">1</span>];</span> <span class="line" id="L736"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L737"> <span class="tok-kw">for</span> (pc, <span class="tok-number">0</span>..) \|t, i\| {</span> <span class="line" id="L738"> t0.v.cmov(ct.eql(k, <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>(i + <span class="tok-number">1</span>))), t.v);</span> <span class="line" id="L739"> }</span> <span class="line" id="L740"> }</span> <span class="line" id="L741"> <span class="tok-kw">const</span> t1 = self.montgomeryMul(out, t0);</span> <span class="line" id="L742"> out.v.cmov(!ct.eql(k, <span class="tok-number">0</span>), t1.v);</span> <span class="line" id="L743"> }</span> <span class="line" id="L744"> <span class="tok-kw">switch</span> (endian) {</span> <span class="line" id="L745"> .Big => {</span> <span class="line" id="L746"> s += <span class="tok-number">1</span>;</span> <span class="line" id="L747"> <span class="tok-kw">if</span> (s == e.len) <span class="tok-kw">break</span>;</span> <span class="line" id="L748"> },</span> <span class="line" id="L749"> .Little => {</span> <span class="line" id="L750"> <span class="tok-kw">if</span> (s == <span class="tok-number">0</span>) <span class="tok-kw">break</span>;</span> <span class="line" id="L751"> s -= <span class="tok-number">1</span>;</span> <span class="line" id="L752"> },</span> <span class="line" id="L753"> }</span> <span class="line" id="L754"> }</span> <span class="line" id="L755"> self.fromMontgomery(&out) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L756"> <span class="tok-kw">return</span> out;</span> <span class="line" id="L757"> }</span> <span class="line" id="L758"> };</span> <span class="line" id="L759">}</span> <span class="line" id="L760"></span> <span class="line" id="L761"><span class="tok-kw">const</span> ct = <span class="tok-kw">if</span> (std.options.side_channels_mitigations == .none) ct_unprotected <span class="tok-kw">else</span> ct_protected;</span> <span class="line" id="L762"></span> <span class="line" id="L763"><span class="tok-kw">const</span> ct_protected = <span class="tok-kw">struct</span> {</span> <span class="line" id="L764"> <span class="tok-comment">// Returns x if on is true, otherwise y.</span> </span> <span class="line" id="L765"> <span class="tok-kw">fn</span> <span class="tok-fn">select</span>(on: <span class="tok-type">bool</span>, x: Limb, y: Limb) Limb {</span> <span class="line" id="L766"> <span class="tok-kw">const</span> mask = <span class="tok-builtin">@as</span>(Limb, <span class="tok-number">0</span>) -% <span class="tok-builtin">@intFromBool</span>(on);</span> <span class="line" id="L767"> <span class="tok-kw">return</span> y ^ (mask & (y ^ x));</span> <span class="line" id="L768"> }</span> <span class="line" id="L769"></span> <span class="line" id="L770"> <span class="tok-comment">// Compares two values in constant time.</span> </span> <span class="line" id="L771"> <span class="tok-kw">fn</span> <span class="tok-fn">eql</span>(x: <span class="tok-kw">anytype</span>, y: <span class="tok-builtin">@TypeOf</span>(x)) <span class="tok-type">bool</span> {</span> <span class="line" id="L772"> <span class="tok-kw">const</span> c1 = <span class="tok-builtin">@subWithOverflow</span>(x, y)[<span class="tok-number">1</span>];</span> <span class="line" id="L773"> <span class="tok-kw">const</span> c2 = <span class="tok-builtin">@subWithOverflow</span>(y, x)[<span class="tok-number">1</span>];</span> <span class="line" id="L774"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">bool</span>, <span class="tok-builtin">@bitCast</span>(<span class="tok-number">1</span> - (c1 \| c2)));</span> <span class="line" id="L775"> }</span> <span class="line" id="L776"></span> <span class="line" id="L777"> <span class="tok-comment">// Compares two big integers in constant time, returning true if x < y.</span> </span> <span class="line" id="L778"> <span class="tok-kw">fn</span> <span class="tok-fn">limbsCmpLt</span>(x: <span class="tok-kw">anytype</span>, y: <span class="tok-builtin">@TypeOf</span>(x)) <span class="tok-type">bool</span> {</span> <span class="line" id="L779"> assert(x.limbs_count() == y.limbs_count());</span> <span class="line" id="L780"> <span class="tok-kw">const</span> x_limbs = x.limbs.constSlice();</span> <span class="line" id="L781"> <span class="tok-kw">const</span> y_limbs = y.limbs.constSlice();</span> <span class="line" id="L782"></span> <span class="line" id="L783"> <span class="tok-kw">var</span> c: <span class="tok-type">u1</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L784"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..x.limbs_count()) \|i\| {</span> <span class="line" id="L785"> c = <span class="tok-builtin">@as</span>(<span class="tok-type">u1</span>, <span class="tok-builtin">@truncate</span>((x_limbs[i] -% y_limbs[i] -% c) >> t_bits));</span> <span class="line" id="L786"> }</span> <span class="line" id="L787"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">bool</span>, <span class="tok-builtin">@bitCast</span>(c));</span> <span class="line" id="L788"> }</span> <span class="line" id="L789"></span> <span class="line" id="L790"> <span class="tok-comment">// Compares two big integers in constant time, returning true if x >= y.</span> </span> <span class="line" id="L791"> <span class="tok-kw">fn</span> <span class="tok-fn">limbsCmpGeq</span>(x: <span class="tok-kw">anytype</span>, y: <span class="tok-builtin">@TypeOf</span>(x)) <span class="tok-type">bool</span> {</span> <span class="line" id="L792"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">bool</span>, <span class="tok-builtin">@bitCast</span>(<span class="tok-number">1</span> - <span class="tok-builtin">@intFromBool</span>(ct.limbsCmpLt(x, y))));</span> <span class="line" id="L793"> }</span> <span class="line" id="L794"></span> <span class="line" id="L795"> <span class="tok-comment">// Multiplies two limbs and returns the result as a wide limb.</span> </span> <span class="line" id="L796"> <span class="tok-kw">fn</span> <span class="tok-fn">mulWide</span>(x: Limb, y: Limb) WideLimb {</span> <span class="line" id="L797"> <span class="tok-kw">const</span> half_bits = <span class="tok-builtin">@typeInfo</span>(Limb).Int.bits / <span class="tok-number">2</span>;</span> <span class="line" id="L798"> <span class="tok-kw">const</span> Half = meta.Int(.unsigned, half_bits);</span> <span class="line" id="L799"> <span class="tok-kw">const</span> x0 = <span class="tok-builtin">@as</span>(Half, <span class="tok-builtin">@truncate</span>(x));</span> <span class="line" id="L800"> <span class="tok-kw">const</span> x1 = <span class="tok-builtin">@as</span>(Half, <span class="tok-builtin">@truncate</span>(x >> half_bits));</span> <span class="line" id="L801"> <span class="tok-kw">const</span> y0 = <span class="tok-builtin">@as</span>(Half, <span class="tok-builtin">@truncate</span>(y));</span> <span class="line" id="L802"> <span class="tok-kw">const</span> y1 = <span class="tok-builtin">@as</span>(Half, <span class="tok-builtin">@truncate</span>(y >> half_bits));</span> <span class="line" id="L803"> <span class="tok-kw">const</span> w0 = math.mulWide(Half, x0, y0);</span> <span class="line" id="L804"> <span class="tok-kw">const</span> t = math.mulWide(Half, x1, y0) + (w0 >> half_bits);</span> <span class="line" id="L805"> <span class="tok-kw">var</span> w1: Limb = <span class="tok-builtin">@as</span>(Half, <span class="tok-builtin">@truncate</span>(t));</span> <span class="line" id="L806"> <span class="tok-kw">const</span> w2 = <span class="tok-builtin">@as</span>(Half, <span class="tok-builtin">@truncate</span>(t >> half_bits));</span> <span class="line" id="L807"> w1 += math.mulWide(Half, x0, y1);</span> <span class="line" id="L808"> <span class="tok-kw">const</span> hi = math.mulWide(Half, x1, y1) + w2 + (w1 >> half_bits);</span> <span class="line" id="L809"> <span class="tok-kw">const</span> lo = x *% y;</span> <span class="line" id="L810"> <span class="tok-kw">return</span> .{ .hi = hi, .lo = lo };</span> <span class="line" id="L811"> }</span> <span class="line" id="L812">};</span> <span class="line" id="L813"></span> <span class="line" id="L814"><span class="tok-kw">const</span> ct_unprotected = <span class="tok-kw">struct</span> {</span> <span class="line" id="L815"> <span class="tok-comment">// Returns x if on is true, otherwise y.</span> </span> <span class="line" id="L816"> <span class="tok-kw">fn</span> <span class="tok-fn">select</span>(on: <span class="tok-type">bool</span>, x: Limb, y: Limb) Limb {</span> <span class="line" id="L817"> <span class="tok-kw">return</span> <span class="tok-kw">if</span> (on) x <span class="tok-kw">else</span> y;</span> <span class="line" id="L818"> }</span> <span class="line" id="L819"></span> <span class="line" id="L820"> <span class="tok-comment">// Compares two values in constant time.</span> </span> <span class="line" id="L821"> <span class="tok-kw">fn</span> <span class="tok-fn">eql</span>(x: <span class="tok-kw">anytype</span>, y: <span class="tok-builtin">@TypeOf</span>(x)) <span class="tok-type">bool</span> {</span> <span class="line" id="L822"> <span class="tok-kw">return</span> x == y;</span> <span class="line" id="L823"> }</span> <span class="line" id="L824"></span> <span class="line" id="L825"> <span class="tok-comment">// Compares two big integers in constant time, returning true if x < y.</span> </span> <span class="line" id="L826"> <span class="tok-kw">fn</span> <span class="tok-fn">limbsCmpLt</span>(x: <span class="tok-kw">anytype</span>, y: <span class="tok-builtin">@TypeOf</span>(x)) <span class="tok-type">bool</span> {</span> <span class="line" id="L827"> assert(x.limbs_count() == y.limbs_count());</span> <span class="line" id="L828"> <span class="tok-kw">const</span> x_limbs = x.limbs.constSlice();</span> <span class="line" id="L829"> <span class="tok-kw">const</span> y_limbs = y.limbs.constSlice();</span> <span class="line" id="L830"></span> <span class="line" id="L831"> <span class="tok-kw">var</span> i = x.limbs_count();</span> <span class="line" id="L832"> <span class="tok-kw">while</span> (i != <span class="tok-number">0</span>) {</span> <span class="line" id="L833"> i -= <span class="tok-number">1</span>;</span> <span class="line" id="L834"> <span class="tok-kw">if</span> (x_limbs[i] != y_limbs[i]) {</span> <span class="line" id="L835"> <span class="tok-kw">return</span> x_limbs[i] < y_limbs[i];</span> <span class="line" id="L836"> }</span> <span class="line" id="L837"> }</span> <span class="line" id="L838"> <span class="tok-kw">return</span> <span class="tok-null">false</span>;</span> <span class="line" id="L839"> }</span> <span class="line" id="L840"></span> <span class="line" id="L841"> <span class="tok-comment">// Compares two big integers in constant time, returning true if x >= y.</span> </span> <span class="line" id="L842"> <span class="tok-kw">fn</span> <span class="tok-fn">limbsCmpGeq</span>(x: <span class="tok-kw">anytype</span>, y: <span class="tok-builtin">@TypeOf</span>(x)) <span class="tok-type">bool</span> {</span> <span class="line" id="L843"> <span class="tok-kw">return</span> !ct.limbsCmpLt(x, y);</span> <span class="line" id="L844"> }</span> <span class="line" id="L845"></span> <span class="line" id="L846"> <span class="tok-comment">// Multiplies two limbs and returns the result as a wide limb.</span> </span> <span class="line" id="L847"> <span class="tok-kw">fn</span> <span class="tok-fn">mulWide</span>(x: Limb, y: Limb) WideLimb {</span> <span class="line" id="L848"> <span class="tok-kw">const</span> wide = math.mulWide(Limb, x, y);</span> <span class="line" id="L849"> <span class="tok-kw">return</span> .{</span> <span class="line" id="L850"> .hi = <span class="tok-builtin">@as</span>(Limb, <span class="tok-builtin">@truncate</span>(wide >> <span class="tok-builtin">@typeInfo</span>(Limb).Int.bits)),</span> <span class="line" id="L851"> .lo = <span class="tok-builtin">@as</span>(Limb, <span class="tok-builtin">@truncate</span>(wide)),</span> <span class="line" id="L852"> };</span> <span class="line" id="L853"> }</span> <span class="line" id="L854">};</span> <span class="line" id="L855"></span> <span class="line" id="L856"><span class="tok-kw">test</span> {</span> <span class="line" id="L857"> <span class="tok-kw">if</span> (<span class="tok-builtin">@import</span>(<span class="tok-str">"builtin"</span>).zig_backend == .stage2_c) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SkipZigTest;</span> <span class="line" id="L858"></span> <span class="line" id="L859"> <span class="tok-kw">const</span> M = Modulus(<span class="tok-number">256</span>);</span> <span class="line" id="L860"> <span class="tok-kw">const</span> m = <span class="tok-kw">try</span> M.fromPrimitive(<span class="tok-type">u256</span>, <span class="tok-number">3429938563481314093726330772853735541133072814650493833233</span>);</span> <span class="line" id="L861"> <span class="tok-kw">var</span> x = <span class="tok-kw">try</span> M.Fe.fromPrimitive(<span class="tok-type">u256</span>, m, <span class="tok-number">80169837251094269539116136208111827396136208141182357733</span>);</span> <span class="line" id="L862"> <span class="tok-kw">var</span> y = <span class="tok-kw">try</span> M.Fe.fromPrimitive(<span class="tok-type">u256</span>, m, <span class="tok-number">24620149608466364616251608466389896540098571</span>);</span> <span class="line" id="L863"></span> <span class="line" id="L864"> <span class="tok-kw">const</span> x_ = <span class="tok-kw">try</span> x.toPrimitive(<span class="tok-type">u256</span>);</span> <span class="line" id="L865"> <span class="tok-kw">try</span> testing.expect((<span class="tok-kw">try</span> M.Fe.fromPrimitive(<span class="tok-builtin">@TypeOf</span>(x_), m, x_)).eql(x));</span> <span class="line" id="L866"> <span class="tok-kw">try</span> testing.expectError(<span class="tok-kw">error</span>.Overflow, x.toPrimitive(<span class="tok-type">u50</span>));</span> <span class="line" id="L867"></span> <span class="line" id="L868"> <span class="tok-kw">const</span> bits = m.bits();</span> <span class="line" id="L869"> <span class="tok-kw">try</span> testing.expectEqual(bits, <span class="tok-number">192</span>);</span> <span class="line" id="L870"></span> <span class="line" id="L871"> <span class="tok-kw">var</span> x_y = m.mul(x, y);</span> <span class="line" id="L872"> <span class="tok-kw">try</span> testing.expectEqual(x_y.toPrimitive(<span class="tok-type">u256</span>), <span class="tok-number">1666576607955767413750776202132407807424848069716933450241</span>);</span> <span class="line" id="L873"></span> <span class="line" id="L874"> <span class="tok-kw">try</span> m.toMontgomery(&x);</span> <span class="line" id="L875"> x_y = m.mul(x, y);</span> <span class="line" id="L876"> <span class="tok-kw">try</span> testing.expectEqual(x_y.toPrimitive(<span class="tok-type">u256</span>), <span class="tok-number">1666576607955767413750776202132407807424848069716933450241</span>);</span> <span class="line" id="L877"> <span class="tok-kw">try</span> m.fromMontgomery(&x);</span> <span class="line" id="L878"></span> <span class="line" id="L879"> x = m.add(x, y);</span> <span class="line" id="L880"> <span class="tok-kw">try</span> testing.expectEqual(x.toPrimitive(<span class="tok-type">u256</span>), <span class="tok-number">80169837251118889688724602572728079004602598037722456304</span>);</span> <span class="line" id="L881"> x = m.sub(x, y);</span> <span class="line" id="L882"> <span class="tok-kw">try</span> testing.expectEqual(x.toPrimitive(<span class="tok-type">u256</span>), <span class="tok-number">80169837251094269539116136208111827396136208141182357733</span>);</span> <span class="line" id="L883"></span> <span class="line" id="L884"> <span class="tok-kw">const</span> big = <span class="tok-kw">try</span> Uint(<span class="tok-number">512</span>).fromPrimitive(<span class="tok-type">u495</span>, <span class="tok-number">77285373554113307281465049383342993856348131409372633077285373554113307281465049383323332333429938563481314093726330772853735541133072814650493833233</span>);</span> <span class="line" id="L885"> <span class="tok-kw">const</span> reduced = m.reduce(big);</span> <span class="line" id="L886"> <span class="tok-kw">try</span> testing.expectEqual(reduced.toPrimitive(<span class="tok-type">u495</span>), <span class="tok-number">858047099884257670294681641776170038885500210968322054970</span>);</span> <span class="line" id="L887"></span> <span class="line" id="L888"> <span class="tok-kw">const</span> x_pow_y = <span class="tok-kw">try</span> m.powPublic(x, y);</span> <span class="line" id="L889"> <span class="tok-kw">try</span> testing.expectEqual(x_pow_y.toPrimitive(<span class="tok-type">u256</span>), <span class="tok-number">1631933139300737762906024873185789093007782131928298618473</span>);</span> <span class="line" id="L890"> <span class="tok-kw">try</span> m.toMontgomery(&x);</span> <span class="line" id="L891"> <span class="tok-kw">const</span> x_pow_y2 = <span class="tok-kw">try</span> m.powPublic(x, y);</span> <span class="line" id="L892"> <span class="tok-kw">try</span> m.fromMontgomery(&x);</span> <span class="line" id="L893"> <span class="tok-kw">try</span> testing.expect(x_pow_y2.eql(x_pow_y));</span> <span class="line" id="L894"> <span class="tok-kw">try</span> testing.expectError(<span class="tok-kw">error</span>.NullExponent, m.powPublic(x, m.zero));</span> <span class="line" id="L895"></span> <span class="line" id="L896"> <span class="tok-kw">try</span> testing.expect(!x.isZero());</span> <span class="line" id="L897"> <span class="tok-kw">try</span> testing.expect(!y.isZero());</span> <span class="line" id="L898"> <span class="tok-kw">try</span> testing.expect(m.v.isOdd());</span> <span class="line" id="L899"></span> <span class="line" id="L900"> <span class="tok-kw">const</span> x_sq = m.sq(x);</span> <span class="line" id="L901"> <span class="tok-kw">const</span> x_sq2 = m.mul(x, x);</span> <span class="line" id="L902"> <span class="tok-kw">try</span> testing.expect(x_sq.eql(x_sq2));</span> <span class="line" id="L903"> <span class="tok-kw">try</span> m.toMontgomery(&x);</span> <span class="line" id="L904"> <span class="tok-kw">const</span> x_sq3 = m.sq(x);</span> <span class="line" id="L905"> <span class="tok-kw">const</span> x_sq4 = m.mul(x, x);</span> <span class="line" id="L906"> <span class="tok-kw">try</span> testing.expect(x_sq.eql(x_sq3));</span> <span class="line" id="L907"> <span class="tok-kw">try</span> testing.expect(x_sq3.eql(x_sq4));</span> <span class="line" id="L908"> <span class="tok-kw">try</span> m.fromMontgomery(&x);</span> <span class="line" id="L909">}</span> <span class="line" id="L910"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/crypto/blake3.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/blake3.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-comment">// Translated from BLAKE3 reference implementation.</span> </span> <span class="line" id="L2"><span class="tok-comment">// Source: https://github.com/BLAKE3-team/BLAKE3</span> </span> <span class="line" id="L3"></span> <span class="line" id="L4"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"../std.zig"</span>);</span> <span class="line" id="L5"><span class="tok-kw">const</span> builtin = <span class="tok-builtin">@import</span>(<span class="tok-str">"builtin"</span>);</span> <span class="line" id="L6"><span class="tok-kw">const</span> fmt = std.fmt;</span> <span class="line" id="L7"><span class="tok-kw">const</span> math = std.math;</span> <span class="line" id="L8"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L9"><span class="tok-kw">const</span> testing = std.testing;</span> <span class="line" id="L10"></span> <span class="line" id="L11"><span class="tok-kw">const</span> ChunkIterator = <span class="tok-kw">struct</span> {</span> <span class="line" id="L12"> slice: []<span class="tok-type">u8</span>,</span> <span class="line" id="L13"> chunk_len: <span class="tok-type">usize</span>,</span> <span class="line" id="L14"></span> <span class="line" id="L15"> <span class="tok-kw">fn</span> <span class="tok-fn">init</span>(slice: []<span class="tok-type">u8</span>, chunk_len: <span class="tok-type">usize</span>) ChunkIterator {</span> <span class="line" id="L16"> <span class="tok-kw">return</span> ChunkIterator{</span> <span class="line" id="L17"> .slice = slice,</span> <span class="line" id="L18"> .chunk_len = chunk_len,</span> <span class="line" id="L19"> };</span> <span class="line" id="L20"> }</span> <span class="line" id="L21"></span> <span class="line" id="L22"> <span class="tok-kw">fn</span> <span class="tok-fn">next</span>(self: ChunkIterator) ?[]<span class="tok-type">u8</span> {</span> <span class="line" id="L23"> <span class="tok-kw">const</span> next_chunk = self.slice[<span class="tok-number">0</span>..<span class="tok-builtin">@min</span>(self.chunk_len, self.slice.len)];</span> <span class="line" id="L24"> self.slice = self.slice[next_chunk.len..];</span> <span class="line" id="L25"> <span class="tok-kw">return</span> <span class="tok-kw">if</span> (next_chunk.len > <span class="tok-number">0</span>) next_chunk <span class="tok-kw">else</span> <span class="tok-null">null</span>;</span> <span class="line" id="L26"> }</span> <span class="line" id="L27">};</span> <span class="line" id="L28"></span> <span class="line" id="L29"><span class="tok-kw">const</span> OUT_LEN: <span class="tok-type">usize</span> = <span class="tok-number">32</span>;</span> <span class="line" id="L30"><span class="tok-kw">const</span> KEY_LEN: <span class="tok-type">usize</span> = <span class="tok-number">32</span>;</span> <span class="line" id="L31"><span class="tok-kw">const</span> BLOCK_LEN: <span class="tok-type">usize</span> = <span class="tok-number">64</span>;</span> <span class="line" id="L32"><span class="tok-kw">const</span> CHUNK_LEN: <span class="tok-type">usize</span> = <span class="tok-number">1024</span>;</span> <span class="line" id="L33"></span> <span class="line" id="L34"><span class="tok-kw">const</span> IV = [<span class="tok-number">8</span>]<span class="tok-type">u32</span>{</span> <span class="line" id="L35"> <span class="tok-number">0x6A09E667</span>, <span class="tok-number">0xBB67AE85</span>, <span class="tok-number">0x3C6EF372</span>, <span class="tok-number">0xA54FF53A</span>, <span class="tok-number">0x510E527F</span>, <span class="tok-number">0x9B05688C</span>, <span class="tok-number">0x1F83D9AB</span>, <span class="tok-number">0x5BE0CD19</span>,</span> <span class="line" id="L36">};</span> <span class="line" id="L37"></span> <span class="line" id="L38"><span class="tok-kw">const</span> MSG_SCHEDULE = [<span class="tok-number">7</span>][<span class="tok-number">16</span>]<span class="tok-type">u8</span>{</span> <span class="line" id="L39"> [_]<span class="tok-type">u8</span>{ <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">8</span>, <span class="tok-number">9</span>, <span class="tok-number">10</span>, <span class="tok-number">11</span>, <span class="tok-number">12</span>, <span class="tok-number">13</span>, <span class="tok-number">14</span>, <span class="tok-number">15</span> },</span> <span class="line" id="L40"> [_]<span class="tok-type">u8</span>{ <span class="tok-number">2</span>, <span class="tok-number">6</span>, <span class="tok-number">3</span>, <span class="tok-number">10</span>, <span class="tok-number">7</span>, <span class="tok-number">0</span>, <span class="tok-number">4</span>, <span class="tok-number">13</span>, <span class="tok-number">1</span>, <span class="tok-number">11</span>, <span class="tok-number">12</span>, <span class="tok-number">5</span>, <span class="tok-number">9</span>, <span class="tok-number">14</span>, <span class="tok-number">15</span>, <span class="tok-number">8</span> },</span> <span class="line" id="L41"> [_]<span class="tok-type">u8</span>{ <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">10</span>, <span class="tok-number">12</span>, <span class="tok-number">13</span>, <span class="tok-number">2</span>, <span class="tok-number">7</span>, <span class="tok-number">14</span>, <span class="tok-number">6</span>, <span class="tok-number">5</span>, <span class="tok-number">9</span>, <span class="tok-number">0</span>, <span class="tok-number">11</span>, <span class="tok-number">15</span>, <span class="tok-number">8</span>, <span class="tok-number">1</span> },</span> <span class="line" id="L42"> [_]<span class="tok-type">u8</span>{ <span class="tok-number">10</span>, <span class="tok-number">7</span>, <span class="tok-number">12</span>, <span class="tok-number">9</span>, <span class="tok-number">14</span>, <span class="tok-number">3</span>, <span class="tok-number">13</span>, <span class="tok-number">15</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">11</span>, <span class="tok-number">2</span>, <span class="tok-number">5</span>, <span class="tok-number">8</span>, <span class="tok-number">1</span>, <span class="tok-number">6</span> },</span> <span class="line" id="L43"> [_]<span class="tok-type">u8</span>{ <span class="tok-number">12</span>, <span class="tok-number">13</span>, <span class="tok-number">9</span>, <span class="tok-number">11</span>, <span class="tok-number">15</span>, <span class="tok-number">10</span>, <span class="tok-number">14</span>, <span class="tok-number">8</span>, <span class="tok-number">7</span>, <span class="tok-number">2</span>, <span class="tok-number">5</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">6</span>, <span class="tok-number">4</span> },</span> <span class="line" id="L44"> [_]<span class="tok-type">u8</span>{ <span class="tok-number">9</span>, <span class="tok-number">14</span>, <span class="tok-number">11</span>, <span class="tok-number">5</span>, <span class="tok-number">8</span>, <span class="tok-number">12</span>, <span class="tok-number">15</span>, <span class="tok-number">1</span>, <span class="tok-number">13</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">10</span>, <span class="tok-number">2</span>, <span class="tok-number">6</span>, <span class="tok-number">4</span>, <span class="tok-number">7</span> },</span> <span class="line" id="L45"> [_]<span class="tok-type">u8</span>{ <span class="tok-number">11</span>, <span class="tok-number">15</span>, <span class="tok-number">5</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">9</span>, <span class="tok-number">8</span>, <span class="tok-number">6</span>, <span class="tok-number">14</span>, <span class="tok-number">10</span>, <span class="tok-number">2</span>, <span class="tok-number">12</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">7</span>, <span class="tok-number">13</span> },</span> <span class="line" id="L46">};</span> <span class="line" id="L47"></span> <span class="line" id="L48"><span class="tok-comment">// These are the internal flags that we use to domain separate root/non-root,</span> </span> <span class="line" id="L49"><span class="tok-comment">// chunk/parent, and chunk beginning/middle/end. These get set at the high end</span> </span> <span class="line" id="L50"><span class="tok-comment">// of the block flags word in the compression function, so their values start</span> </span> <span class="line" id="L51"><span class="tok-comment">// high and go down.</span> </span> <span class="line" id="L52"><span class="tok-kw">const</span> CHUNK_START: <span class="tok-type">u8</span> = <span class="tok-number">1</span> << <span class="tok-number">0</span>;</span> <span class="line" id="L53"><span class="tok-kw">const</span> CHUNK_END: <span class="tok-type">u8</span> = <span class="tok-number">1</span> << <span class="tok-number">1</span>;</span> <span class="line" id="L54"><span class="tok-kw">const</span> PARENT: <span class="tok-type">u8</span> = <span class="tok-number">1</span> << <span class="tok-number">2</span>;</span> <span class="line" id="L55"><span class="tok-kw">const</span> ROOT: <span class="tok-type">u8</span> = <span class="tok-number">1</span> << <span class="tok-number">3</span>;</span> <span class="line" id="L56"><span class="tok-kw">const</span> KEYED_HASH: <span class="tok-type">u8</span> = <span class="tok-number">1</span> << <span class="tok-number">4</span>;</span> <span class="line" id="L57"><span class="tok-kw">const</span> DERIVE_KEY_CONTEXT: <span class="tok-type">u8</span> = <span class="tok-number">1</span> << <span class="tok-number">5</span>;</span> <span class="line" id="L58"><span class="tok-kw">const</span> DERIVE_KEY_MATERIAL: <span class="tok-type">u8</span> = <span class="tok-number">1</span> << <span class="tok-number">6</span>;</span> <span class="line" id="L59"></span> <span class="line" id="L60"><span class="tok-kw">const</span> CompressVectorized = <span class="tok-kw">struct</span> {</span> <span class="line" id="L61"> <span class="tok-kw">const</span> Lane = <span class="tok-builtin">@Vector</span>(<span class="tok-number">4</span>, <span class="tok-type">u32</span>);</span> <span class="line" id="L62"> <span class="tok-kw">const</span> Rows = [<span class="tok-number">4</span>]Lane;</span> <span class="line" id="L63"></span> <span class="line" id="L64"> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">g</span>(<span class="tok-kw">comptime</span> even: <span class="tok-type">bool</span>, rows: Rows, m: Lane) <span class="tok-type">void</span> {</span> <span class="line" id="L65"> rows[<span class="tok-number">0</span>] +%= rows[<span class="tok-number">1</span>] +% m;</span> <span class="line" id="L66"> rows[<span class="tok-number">3</span>] ^= rows[<span class="tok-number">0</span>];</span> <span class="line" id="L67"> rows[<span class="tok-number">3</span>] = math.rotr(Lane, rows[<span class="tok-number">3</span>], <span class="tok-kw">if</span> (even) <span class="tok-number">8</span> <span class="tok-kw">else</span> <span class="tok-number">16</span>);</span> <span class="line" id="L68"> rows[<span class="tok-number">2</span>] +%= rows[<span class="tok-number">3</span>];</span> <span class="line" id="L69"> rows[<span class="tok-number">1</span>] ^= rows[<span class="tok-number">2</span>];</span> <span class="line" id="L70"> rows[<span class="tok-number">1</span>] = math.rotr(Lane, rows[<span class="tok-number">1</span>], <span class="tok-kw">if</span> (even) <span class="tok-number">7</span> <span class="tok-kw">else</span> <span class="tok-number">12</span>);</span> <span class="line" id="L71"> }</span> <span class="line" id="L72"></span> <span class="line" id="L73"> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">diagonalize</span>(rows: Rows) <span class="tok-type">void</span> {</span> <span class="line" id="L74"> rows[<span class="tok-number">0</span>] = <span class="tok-builtin">@shuffle</span>(<span class="tok-type">u32</span>, rows[<span class="tok-number">0</span>], <span class="tok-null">undefined</span>, [_]<span class="tok-type">i32</span>{ <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span> });</span> <span class="line" id="L75"> rows[<span class="tok-number">3</span>] = <span class="tok-builtin">@shuffle</span>(<span class="tok-type">u32</span>, rows[<span class="tok-number">3</span>], <span class="tok-null">undefined</span>, [_]<span class="tok-type">i32</span>{ <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span> });</span> <span class="line" id="L76"> rows[<span class="tok-number">2</span>] = <span class="tok-builtin">@shuffle</span>(<span class="tok-type">u32</span>, rows[<span class="tok-number">2</span>], <span class="tok-null">undefined</span>, [_]<span class="tok-type">i32</span>{ <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span> });</span> <span class="line" id="L77"> }</span> <span class="line" id="L78"></span> <span class="line" id="L79"> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">undiagonalize</span>(rows: Rows) <span class="tok-type">void</span> {</span> <span class="line" id="L80"> rows[<span class="tok-number">0</span>] = <span class="tok-builtin">@shuffle</span>(<span class="tok-type">u32</span>, rows[<span class="tok-number">0</span>], <span class="tok-null">undefined</span>, [_]<span class="tok-type">i32</span>{ <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span> });</span> <span class="line" id="L81"> rows[<span class="tok-number">3</span>] = <span class="tok-builtin">@shuffle</span>(<span class="tok-type">u32</span>, rows[<span class="tok-number">3</span>], <span class="tok-null">undefined</span>, [_]<span class="tok-type">i32</span>{ <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span> });</span> <span class="line" id="L82"> rows[<span class="tok-number">2</span>] = <span class="tok-builtin">@shuffle</span>(<span class="tok-type">u32</span>, rows[<span class="tok-number">2</span>], <span class="tok-null">undefined</span>, [_]<span class="tok-type">i32</span>{ <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span> });</span> <span class="line" id="L83"> }</span> <span class="line" id="L84"></span> <span class="line" id="L85"> <span class="tok-kw">fn</span> <span class="tok-fn">compress</span>(</span> <span class="line" id="L86"> chaining_value: [<span class="tok-number">8</span>]<span class="tok-type">u32</span>,</span> <span class="line" id="L87"> block_words: [<span class="tok-number">16</span>]<span class="tok-type">u32</span>,</span> <span class="line" id="L88"> block_len: <span class="tok-type">u32</span>,</span> <span class="line" id="L89"> counter: <span class="tok-type">u64</span>,</span> <span class="line" id="L90"> flags: <span class="tok-type">u8</span>,</span> <span class="line" id="L91"> ) [<span class="tok-number">16</span>]<span class="tok-type">u32</span> {</span> <span class="line" id="L92"> <span class="tok-kw">const</span> md = Lane{ <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@truncate</span>(counter)), <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@truncate</span>(counter >> <span class="tok-number">32</span>)), block_len, <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, flags) };</span> <span class="line" id="L93"> <span class="tok-kw">var</span> rows = Rows{ chaining_value[<span class="tok-number">0</span>..<span class="tok-number">4</span>]., chaining_value[<span class="tok-number">4</span>..<span class="tok-number">8</span>]., IV[<span class="tok-number">0</span>..<span class="tok-number">4</span>]., md };</span> <span class="line" id="L94"></span> <span class="line" id="L95"> <span class="tok-kw">var</span> m = Rows{ block_words[<span class="tok-number">0</span>..<span class="tok-number">4</span>]., block_words[<span class="tok-number">4</span>..<span class="tok-number">8</span>]., block_words[<span class="tok-number">8</span>..<span class="tok-number">12</span>]., block_words[<span class="tok-number">12</span>..<span class="tok-number">16</span>].* };</span> <span class="line" id="L96"> <span class="tok-kw">var</span> t0 = <span class="tok-builtin">@shuffle</span>(<span class="tok-type">u32</span>, m[<span class="tok-number">0</span>], m[<span class="tok-number">1</span>], [_]<span class="tok-type">i32</span>{ <span class="tok-number">0</span>, <span class="tok-number">2</span>, (-<span class="tok-number">1</span> - <span class="tok-number">0</span>), (-<span class="tok-number">1</span> - <span class="tok-number">2</span>) });</span> <span class="line" id="L97"> g(<span class="tok-null">false</span>, &rows, t0);</span> <span class="line" id="L98"> <span class="tok-kw">var</span> t1 = <span class="tok-builtin">@shuffle</span>(<span class="tok-type">u32</span>, m[<span class="tok-number">0</span>], m[<span class="tok-number">1</span>], [_]<span class="tok-type">i32</span>{ <span class="tok-number">1</span>, <span class="tok-number">3</span>, (-<span class="tok-number">1</span> - <span class="tok-number">1</span>), (-<span class="tok-number">1</span> - <span class="tok-number">3</span>) });</span> <span class="line" id="L99"> g(<span class="tok-null">true</span>, &rows, t1);</span> <span class="line" id="L100"> diagonalize(&rows);</span> <span class="line" id="L101"> <span class="tok-kw">var</span> t2 = <span class="tok-builtin">@shuffle</span>(<span class="tok-type">u32</span>, m[<span class="tok-number">2</span>], m[<span class="tok-number">3</span>], [_]<span class="tok-type">i32</span>{ <span class="tok-number">0</span>, <span class="tok-number">2</span>, (-<span class="tok-number">1</span> - <span class="tok-number">0</span>), (-<span class="tok-number">1</span> - <span class="tok-number">2</span>) });</span> <span class="line" id="L102"> t2 = <span class="tok-builtin">@shuffle</span>(<span class="tok-type">u32</span>, t2, <span class="tok-null">undefined</span>, [_]<span class="tok-type">i32</span>{ <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span> });</span> <span class="line" id="L103"> g(<span class="tok-null">false</span>, &rows, t2);</span> <span class="line" id="L104"> <span class="tok-kw">var</span> t3 = <span class="tok-builtin">@shuffle</span>(<span class="tok-type">u32</span>, m[<span class="tok-number">2</span>], m[<span class="tok-number">3</span>], [_]<span class="tok-type">i32</span>{ <span class="tok-number">1</span>, <span class="tok-number">3</span>, (-<span class="tok-number">1</span> - <span class="tok-number">1</span>), (-<span class="tok-number">1</span> - <span class="tok-number">3</span>) });</span> <span class="line" id="L105"> t3 = <span class="tok-builtin">@shuffle</span>(<span class="tok-type">u32</span>, t3, <span class="tok-null">undefined</span>, [_]<span class="tok-type">i32</span>{ <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span> });</span> <span class="line" id="L106"> g(<span class="tok-null">true</span>, &rows, t3);</span> <span class="line" id="L107"> undiagonalize(&rows);</span> <span class="line" id="L108"> m = Rows{ t0, t1, t2, t3 };</span> <span class="line" id="L109"></span> <span class="line" id="L110"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L111"> <span class="tok-kw">while</span> (i < <span class="tok-number">6</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L112"> t0 = <span class="tok-builtin">@shuffle</span>(<span class="tok-type">u32</span>, m[<span class="tok-number">0</span>], m[<span class="tok-number">1</span>], [_]<span class="tok-type">i32</span>{ <span class="tok-number">2</span>, <span class="tok-number">1</span>, (-<span class="tok-number">1</span> - <span class="tok-number">1</span>), (-<span class="tok-number">1</span> - <span class="tok-number">3</span>) });</span> <span class="line" id="L113"> t0 = <span class="tok-builtin">@shuffle</span>(<span class="tok-type">u32</span>, t0, <span class="tok-null">undefined</span>, [_]<span class="tok-type">i32</span>{ <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span> });</span> <span class="line" id="L114"> g(<span class="tok-null">false</span>, &rows, t0);</span> <span class="line" id="L115"> t1 = <span class="tok-builtin">@shuffle</span>(<span class="tok-type">u32</span>, m[<span class="tok-number">2</span>], m[<span class="tok-number">3</span>], [_]<span class="tok-type">i32</span>{ <span class="tok-number">2</span>, <span class="tok-number">2</span>, (-<span class="tok-number">1</span> - <span class="tok-number">3</span>), (-<span class="tok-number">1</span> - <span class="tok-number">3</span>) });</span> <span class="line" id="L116"> <span class="tok-kw">var</span> tt = <span class="tok-builtin">@shuffle</span>(<span class="tok-type">u32</span>, m[<span class="tok-number">0</span>], <span class="tok-null">undefined</span>, [_]<span class="tok-type">i32</span>{ <span class="tok-number">3</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span> });</span> <span class="line" id="L117"> t1 = <span class="tok-builtin">@shuffle</span>(<span class="tok-type">u32</span>, tt, t1, [_]<span class="tok-type">i32</span>{ <span class="tok-number">0</span>, (-<span class="tok-number">1</span> - <span class="tok-number">1</span>), <span class="tok-number">2</span>, (-<span class="tok-number">1</span> - <span class="tok-number">3</span>) });</span> <span class="line" id="L118"> g(<span class="tok-null">true</span>, &rows, t1);</span> <span class="line" id="L119"> diagonalize(&rows);</span> <span class="line" id="L120"> t2 = <span class="tok-builtin">@shuffle</span>(<span class="tok-type">u32</span>, m[<span class="tok-number">3</span>], m[<span class="tok-number">1</span>], [_]<span class="tok-type">i32</span>{ <span class="tok-number">0</span>, <span class="tok-number">1</span>, (-<span class="tok-number">1</span> - <span class="tok-number">0</span>), (-<span class="tok-number">1</span> - <span class="tok-number">1</span>) });</span> <span class="line" id="L121"> tt = <span class="tok-builtin">@shuffle</span>(<span class="tok-type">u32</span>, t2, m[<span class="tok-number">2</span>], [_]<span class="tok-type">i32</span>{ <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, (-<span class="tok-number">1</span> - <span class="tok-number">3</span>) });</span> <span class="line" id="L122"> t2 = <span class="tok-builtin">@shuffle</span>(<span class="tok-type">u32</span>, tt, <span class="tok-null">undefined</span>, [_]<span class="tok-type">i32</span>{ <span class="tok-number">0</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">1</span> });</span> <span class="line" id="L123"> g(<span class="tok-null">false</span>, &rows, t2);</span> <span class="line" id="L124"> t3 = <span class="tok-builtin">@shuffle</span>(<span class="tok-type">u32</span>, m[<span class="tok-number">1</span>], m[<span class="tok-number">3</span>], [_]<span class="tok-type">i32</span>{ <span class="tok-number">2</span>, (-<span class="tok-number">1</span> - <span class="tok-number">2</span>), <span class="tok-number">3</span>, (-<span class="tok-number">1</span> - <span class="tok-number">3</span>) });</span> <span class="line" id="L125"> tt = <span class="tok-builtin">@shuffle</span>(<span class="tok-type">u32</span>, m[<span class="tok-number">2</span>], t3, [_]<span class="tok-type">i32</span>{ <span class="tok-number">0</span>, (-<span class="tok-number">1</span> - <span class="tok-number">0</span>), <span class="tok-number">1</span>, (-<span class="tok-number">1</span> - <span class="tok-number">1</span>) });</span> <span class="line" id="L126"> t3 = <span class="tok-builtin">@shuffle</span>(<span class="tok-type">u32</span>, tt, <span class="tok-null">undefined</span>, [_]<span class="tok-type">i32</span>{ <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span> });</span> <span class="line" id="L127"> g(<span class="tok-null">true</span>, &rows, t3);</span> <span class="line" id="L128"> undiagonalize(&rows);</span> <span class="line" id="L129"> m = Rows{ t0, t1, t2, t3 };</span> <span class="line" id="L130"> }</span> <span class="line" id="L131"></span> <span class="line" id="L132"> rows[<span class="tok-number">0</span>] ^= rows[<span class="tok-number">2</span>];</span> <span class="line" id="L133"> rows[<span class="tok-number">1</span>] ^= rows[<span class="tok-number">3</span>];</span> <span class="line" id="L134"> rows[<span class="tok-number">2</span>] ^= <span class="tok-builtin">@Vector</span>(<span class="tok-number">4</span>, <span class="tok-type">u32</span>){ chaining_value[<span class="tok-number">0</span>], chaining_value[<span class="tok-number">1</span>], chaining_value[<span class="tok-number">2</span>], chaining_value[<span class="tok-number">3</span>] };</span> <span class="line" id="L135"> rows[<span class="tok-number">3</span>] ^= <span class="tok-builtin">@Vector</span>(<span class="tok-number">4</span>, <span class="tok-type">u32</span>){ chaining_value[<span class="tok-number">4</span>], chaining_value[<span class="tok-number">5</span>], chaining_value[<span class="tok-number">6</span>], chaining_value[<span class="tok-number">7</span>] };</span> <span class="line" id="L136"></span> <span class="line" id="L137"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>([<span class="tok-number">16</span>]<span class="tok-type">u32</span>, <span class="tok-builtin">@bitCast</span>(rows));</span> <span class="line" id="L138"> }</span> <span class="line" id="L139">};</span> <span class="line" id="L140"></span> <span class="line" id="L141"><span class="tok-kw">const</span> CompressGeneric = <span class="tok-kw">struct</span> {</span> <span class="line" id="L142"> <span class="tok-kw">fn</span> <span class="tok-fn">g</span>(state: [<span class="tok-number">16</span>]<span class="tok-type">u32</span>, <span class="tok-kw">comptime</span> a: <span class="tok-type">usize</span>, <span class="tok-kw">comptime</span> b: <span class="tok-type">usize</span>, <span class="tok-kw">comptime</span> c: <span class="tok-type">usize</span>, <span class="tok-kw">comptime</span> d: <span class="tok-type">usize</span>, mx: <span class="tok-type">u32</span>, my: <span class="tok-type">u32</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L143"> state[a] +%= state[b] +% mx;</span> <span class="line" id="L144"> state[d] = math.rotr(<span class="tok-type">u32</span>, state[d] ^ state[a], <span class="tok-number">16</span>);</span> <span class="line" id="L145"> state[c] +%= state[d];</span> <span class="line" id="L146"> state[b] = math.rotr(<span class="tok-type">u32</span>, state[b] ^ state[c], <span class="tok-number">12</span>);</span> <span class="line" id="L147"> state[a] +%= state[b] +% my;</span> <span class="line" id="L148"> state[d] = math.rotr(<span class="tok-type">u32</span>, state[d] ^ state[a], <span class="tok-number">8</span>);</span> <span class="line" id="L149"> state[c] +%= state[d];</span> <span class="line" id="L150"> state[b] = math.rotr(<span class="tok-type">u32</span>, state[b] ^ state[c], <span class="tok-number">7</span>);</span> <span class="line" id="L151"> }</span> <span class="line" id="L152"></span> <span class="line" id="L153"> <span class="tok-kw">fn</span> <span class="tok-fn">round</span>(state: [<span class="tok-number">16</span>]<span class="tok-type">u32</span>, msg: [<span class="tok-number">16</span>]<span class="tok-type">u32</span>, schedule: [<span class="tok-number">16</span>]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L154"> <span class="tok-comment">// Mix the columns.</span> </span> <span class="line" id="L155"> g(state, <span class="tok-number">0</span>, <span class="tok-number">4</span>, <span class="tok-number">8</span>, <span class="tok-number">12</span>, msg[schedule[<span class="tok-number">0</span>]], msg[schedule[<span class="tok-number">1</span>]]);</span> <span class="line" id="L156"> g(state, <span class="tok-number">1</span>, <span class="tok-number">5</span>, <span class="tok-number">9</span>, <span class="tok-number">13</span>, msg[schedule[<span class="tok-number">2</span>]], msg[schedule[<span class="tok-number">3</span>]]);</span> <span class="line" id="L157"> g(state, <span class="tok-number">2</span>, <span class="tok-number">6</span>, <span class="tok-number">10</span>, <span class="tok-number">14</span>, msg[schedule[<span class="tok-number">4</span>]], msg[schedule[<span class="tok-number">5</span>]]);</span> <span class="line" id="L158"> g(state, <span class="tok-number">3</span>, <span class="tok-number">7</span>, <span class="tok-number">11</span>, <span class="tok-number">15</span>, msg[schedule[<span class="tok-number">6</span>]], msg[schedule[<span class="tok-number">7</span>]]);</span> <span class="line" id="L159"></span> <span class="line" id="L160"> <span class="tok-comment">// Mix the diagonals.</span> </span> <span class="line" id="L161"> g(state, <span class="tok-number">0</span>, <span class="tok-number">5</span>, <span class="tok-number">10</span>, <span class="tok-number">15</span>, msg[schedule[<span class="tok-number">8</span>]], msg[schedule[<span class="tok-number">9</span>]]);</span> <span class="line" id="L162"> g(state, <span class="tok-number">1</span>, <span class="tok-number">6</span>, <span class="tok-number">11</span>, <span class="tok-number">12</span>, msg[schedule[<span class="tok-number">10</span>]], msg[schedule[<span class="tok-number">11</span>]]);</span> <span class="line" id="L163"> g(state, <span class="tok-number">2</span>, <span class="tok-number">7</span>, <span class="tok-number">8</span>, <span class="tok-number">13</span>, msg[schedule[<span class="tok-number">12</span>]], msg[schedule[<span class="tok-number">13</span>]]);</span> <span class="line" id="L164"> g(state, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">9</span>, <span class="tok-number">14</span>, msg[schedule[<span class="tok-number">14</span>]], msg[schedule[<span class="tok-number">15</span>]]);</span> <span class="line" id="L165"> }</span> <span class="line" id="L166"></span> <span class="line" id="L167"> <span class="tok-kw">fn</span> <span class="tok-fn">compress</span>(</span> <span class="line" id="L168"> chaining_value: [<span class="tok-number">8</span>]<span class="tok-type">u32</span>,</span> <span class="line" id="L169"> block_words: [<span class="tok-number">16</span>]<span class="tok-type">u32</span>,</span> <span class="line" id="L170"> block_len: <span class="tok-type">u32</span>,</span> <span class="line" id="L171"> counter: <span class="tok-type">u64</span>,</span> <span class="line" id="L172"> flags: <span class="tok-type">u8</span>,</span> <span class="line" id="L173"> ) [<span class="tok-number">16</span>]<span class="tok-type">u32</span> {</span> <span class="line" id="L174"> <span class="tok-kw">var</span> state = [<span class="tok-number">16</span>]<span class="tok-type">u32</span>{</span> <span class="line" id="L175"> chaining_value[<span class="tok-number">0</span>],</span> <span class="line" id="L176"> chaining_value[<span class="tok-number">1</span>],</span> <span class="line" id="L177"> chaining_value[<span class="tok-number">2</span>],</span> <span class="line" id="L178"> chaining_value[<span class="tok-number">3</span>],</span> <span class="line" id="L179"> chaining_value[<span class="tok-number">4</span>],</span> <span class="line" id="L180"> chaining_value[<span class="tok-number">5</span>],</span> <span class="line" id="L181"> chaining_value[<span class="tok-number">6</span>],</span> <span class="line" id="L182"> chaining_value[<span class="tok-number">7</span>],</span> <span class="line" id="L183"> IV[<span class="tok-number">0</span>],</span> <span class="line" id="L184"> IV[<span class="tok-number">1</span>],</span> <span class="line" id="L185"> IV[<span class="tok-number">2</span>],</span> <span class="line" id="L186"> IV[<span class="tok-number">3</span>],</span> <span class="line" id="L187"> <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@truncate</span>(counter)),</span> <span class="line" id="L188"> <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@truncate</span>(counter >> <span class="tok-number">32</span>)),</span> <span class="line" id="L189"> block_len,</span> <span class="line" id="L190"> flags,</span> <span class="line" id="L191"> };</span> <span class="line" id="L192"> <span class="tok-kw">for</span> (MSG_SCHEDULE) \|schedule\| {</span> <span class="line" id="L193"> round(&state, block_words, schedule);</span> <span class="line" id="L194"> }</span> <span class="line" id="L195"> <span class="tok-kw">for</span> (chaining_value, <span class="tok-number">0</span>..) \|_, i\| {</span> <span class="line" id="L196"> state[i] ^= state[i + <span class="tok-number">8</span>];</span> <span class="line" id="L197"> state[i + <span class="tok-number">8</span>] ^= chaining_value[i];</span> <span class="line" id="L198"> }</span> <span class="line" id="L199"> <span class="tok-kw">return</span> state;</span> <span class="line" id="L200"> }</span> <span class="line" id="L201">};</span> <span class="line" id="L202"></span> <span class="line" id="L203"><span class="tok-kw">const</span> compress = <span class="tok-kw">if</span> (builtin.cpu.arch == .x86_64)</span> <span class="line" id="L204"> CompressVectorized.compress</span> <span class="line" id="L205"><span class="tok-kw">else</span></span> <span class="line" id="L206"> CompressGeneric.compress;</span> <span class="line" id="L207"></span> <span class="line" id="L208"><span class="tok-kw">fn</span> <span class="tok-fn">first8Words</span>(words: [<span class="tok-number">16</span>]<span class="tok-type">u32</span>) [<span class="tok-number">8</span>]<span class="tok-type">u32</span> {</span> <span class="line" id="L209"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-kw">const</span> [<span class="tok-number">8</span>]<span class="tok-type">u32</span>, <span class="tok-builtin">@ptrCast</span>(&words)).;</span> <span class="line" id="L210">}</span> <span class="line" id="L211"></span> <span class="line" id="L212"><span class="tok-kw">fn</span> <span class="tok-fn">wordsFromLittleEndianBytes</span>(<span class="tok-kw">comptime</span> count: <span class="tok-type">usize</span>, bytes: [count * <span class="tok-number">4</span>]<span class="tok-type">u8</span>) [count]<span class="tok-type">u32</span> {</span> <span class="line" id="L213"> <span class="tok-kw">var</span> words: [count]<span class="tok-type">u32</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L214"> <span class="tok-kw">for</span> (&words, <span class="tok-number">0</span>..) \|word, i\| {</span> <span class="line" id="L215"> word. = mem.readIntSliceLittle(<span class="tok-type">u32</span>, bytes[<span class="tok-number">4</span> * i ..]);</span> <span class="line" id="L216"> }</span> <span class="line" id="L217"> <span class="tok-kw">return</span> words;</span> <span class="line" id="L218">}</span> <span class="line" id="L219"></span> <span class="line" id="L220"><span class="tok-comment">// Each chunk or parent node can produce either an 8-word chaining value or, by</span> </span> <span class="line" id="L221"><span class="tok-comment">// setting the ROOT flag, any number of final output bytes. The Output struct</span> </span> <span class="line" id="L222"><span class="tok-comment">// captures the state just prior to choosing between those two possibilities.</span> </span> <span class="line" id="L223"><span class="tok-kw">const</span> Output = <span class="tok-kw">struct</span> {</span> <span class="line" id="L224"> input_chaining_value: [<span class="tok-number">8</span>]<span class="tok-type">u32</span> <span class="tok-kw">align</span>(<span class="tok-number">16</span>),</span> <span class="line" id="L225"> block_words: [<span class="tok-number">16</span>]<span class="tok-type">u32</span> <span class="tok-kw">align</span>(<span class="tok-number">16</span>),</span> <span class="line" id="L226"> block_len: <span class="tok-type">u32</span>,</span> <span class="line" id="L227"> counter: <span class="tok-type">u64</span>,</span> <span class="line" id="L228"> flags: <span class="tok-type">u8</span>,</span> <span class="line" id="L229"></span> <span class="line" id="L230"> <span class="tok-kw">fn</span> <span class="tok-fn">chainingValue</span>(self: <span class="tok-kw">const</span> Output) [<span class="tok-number">8</span>]<span class="tok-type">u32</span> {</span> <span class="line" id="L231"> <span class="tok-kw">return</span> first8Words(compress(</span> <span class="line" id="L232"> self.input_chaining_value,</span> <span class="line" id="L233"> self.block_words,</span> <span class="line" id="L234"> self.block_len,</span> <span class="line" id="L235"> self.counter,</span> <span class="line" id="L236"> self.flags,</span> <span class="line" id="L237"> ));</span> <span class="line" id="L238"> }</span> <span class="line" id="L239"></span> <span class="line" id="L240"> <span class="tok-kw">fn</span> <span class="tok-fn">rootOutputBytes</span>(self: <span class="tok-kw">const</span> Output, output: []<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L241"> <span class="tok-kw">var</span> out_block_it = ChunkIterator.init(output, <span class="tok-number">2</span> * OUT_LEN);</span> <span class="line" id="L242"> <span class="tok-kw">var</span> output_block_counter: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L243"> <span class="tok-kw">while</span> (out_block_it.next()) \|out_block\| {</span> <span class="line" id="L244"> <span class="tok-kw">var</span> words = compress(</span> <span class="line" id="L245"> self.input_chaining_value,</span> <span class="line" id="L246"> self.block_words,</span> <span class="line" id="L247"> self.block_len,</span> <span class="line" id="L248"> output_block_counter,</span> <span class="line" id="L249"> self.flags \| ROOT,</span> <span class="line" id="L250"> );</span> <span class="line" id="L251"> <span class="tok-kw">var</span> out_word_it = ChunkIterator.init(out_block, <span class="tok-number">4</span>);</span> <span class="line" id="L252"> <span class="tok-kw">var</span> word_counter: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L253"> <span class="tok-kw">while</span> (out_word_it.next()) \|out_word\| {</span> <span class="line" id="L254"> <span class="tok-kw">var</span> word_bytes: [<span class="tok-number">4</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L255"> mem.writeIntLittle(<span class="tok-type">u32</span>, &word_bytes, words[word_counter]);</span> <span class="line" id="L256"> <span class="tok-builtin">@memcpy</span>(out_word, word_bytes[<span class="tok-number">0</span>..out_word.len]);</span> <span class="line" id="L257"> word_counter += <span class="tok-number">1</span>;</span> <span class="line" id="L258"> }</span> <span class="line" id="L259"> output_block_counter += <span class="tok-number">1</span>;</span> <span class="line" id="L260"> }</span> <span class="line" id="L261"> }</span> <span class="line" id="L262">};</span> <span class="line" id="L263"></span> <span class="line" id="L264"><span class="tok-kw">const</span> ChunkState = <span class="tok-kw">struct</span> {</span> <span class="line" id="L265"> chaining_value: [<span class="tok-number">8</span>]<span class="tok-type">u32</span> <span class="tok-kw">align</span>(<span class="tok-number">16</span>),</span> <span class="line" id="L266"> chunk_counter: <span class="tok-type">u64</span>,</span> <span class="line" id="L267"> block: [BLOCK_LEN]<span class="tok-type">u8</span> <span class="tok-kw">align</span>(<span class="tok-number">16</span>) = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} ** BLOCK_LEN,</span> <span class="line" id="L268"> block_len: <span class="tok-type">u8</span> = <span class="tok-number">0</span>,</span> <span class="line" id="L269"> blocks_compressed: <span class="tok-type">u8</span> = <span class="tok-number">0</span>,</span> <span class="line" id="L270"> flags: <span class="tok-type">u8</span>,</span> <span class="line" id="L271"></span> <span class="line" id="L272"> <span class="tok-kw">fn</span> <span class="tok-fn">init</span>(key: [<span class="tok-number">8</span>]<span class="tok-type">u32</span>, chunk_counter: <span class="tok-type">u64</span>, flags: <span class="tok-type">u8</span>) ChunkState {</span> <span class="line" id="L273"> <span class="tok-kw">return</span> ChunkState{</span> <span class="line" id="L274"> .chaining_value = key,</span> <span class="line" id="L275"> .chunk_counter = chunk_counter,</span> <span class="line" id="L276"> .flags = flags,</span> <span class="line" id="L277"> };</span> <span class="line" id="L278"> }</span> <span class="line" id="L279"></span> <span class="line" id="L280"> <span class="tok-kw">fn</span> <span class="tok-fn">len</span>(self: <span class="tok-kw">const</span> ChunkState) <span class="tok-type">usize</span> {</span> <span class="line" id="L281"> <span class="tok-kw">return</span> BLOCK_LEN <span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, self.blocks_compressed) + <span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, self.block_len);</span> <span class="line" id="L282"> }</span> <span class="line" id="L283"></span> <span class="line" id="L284"> <span class="tok-kw">fn</span> <span class="tok-fn">fillBlockBuf</span>(self: ChunkState, input: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) []<span class="tok-kw">const</span> <span class="tok-type">u8</span> {</span> <span class="line" id="L285"> <span class="tok-kw">const</span> want = BLOCK_LEN - self.block_len;</span> <span class="line" id="L286"> <span class="tok-kw">const</span> take = <span class="tok-builtin">@min</span>(want, input.len);</span> <span class="line" id="L287"> <span class="tok-builtin">@memcpy</span>(self.block[self.block_len..][<span class="tok-number">0</span>..take], input[<span class="tok-number">0</span>..take]);</span> <span class="line" id="L288"> self.block_len += <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>(take));</span> <span class="line" id="L289"> <span class="tok-kw">return</span> input[take..];</span> <span class="line" id="L290"> }</span> <span class="line" id="L291"></span> <span class="line" id="L292"> <span class="tok-kw">fn</span> <span class="tok-fn">startFlag</span>(self: <span class="tok-kw">const</span> ChunkState) <span class="tok-type">u8</span> {</span> <span class="line" id="L293"> <span class="tok-kw">return</span> <span class="tok-kw">if</span> (self.blocks_compressed == <span class="tok-number">0</span>) CHUNK_START <span class="tok-kw">else</span> <span class="tok-number">0</span>;</span> <span class="line" id="L294"> }</span> <span class="line" id="L295"></span> <span class="line" id="L296"> <span class="tok-kw">fn</span> <span class="tok-fn">update</span>(self: ChunkState, input_slice: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L297"> <span class="tok-kw">var</span> input = input_slice;</span> <span class="line" id="L298"> <span class="tok-kw">while</span> (input.len > <span class="tok-number">0</span>) {</span> <span class="line" id="L299"> <span class="tok-comment">// If the block buffer is full, compress it and clear it. More</span> </span> <span class="line" id="L300"> <span class="tok-comment">// input is coming, so this compression is not CHUNK_END.</span> </span> <span class="line" id="L301"> <span class="tok-kw">if</span> (self.block_len == BLOCK_LEN) {</span> <span class="line" id="L302"> <span class="tok-kw">const</span> block_words = wordsFromLittleEndianBytes(<span class="tok-number">16</span>, self.block);</span> <span class="line" id="L303"> self.chaining_value = first8Words(compress(</span> <span class="line" id="L304"> self.chaining_value,</span> <span class="line" id="L305"> block_words,</span> <span class="line" id="L306"> BLOCK_LEN,</span> <span class="line" id="L307"> self.chunk_counter,</span> <span class="line" id="L308"> self.flags \| self.startFlag(),</span> <span class="line" id="L309"> ));</span> <span class="line" id="L310"> self.blocks_compressed += <span class="tok-number">1</span>;</span> <span class="line" id="L311"> self.block = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} * BLOCK_LEN;</span> <span class="line" id="L312"> self.block_len = <span class="tok-number">0</span>;</span> <span class="line" id="L313"> }</span> <span class="line" id="L314"></span> <span class="line" id="L315"> <span class="tok-comment">// Copy input bytes into the block buffer.</span> </span> <span class="line" id="L316"> input = self.fillBlockBuf(input);</span> <span class="line" id="L317"> }</span> <span class="line" id="L318"> }</span> <span class="line" id="L319"></span> <span class="line" id="L320"> <span class="tok-kw">fn</span> <span class="tok-fn">output</span>(self: <span class="tok-kw">const</span> ChunkState) Output {</span> <span class="line" id="L321"> <span class="tok-kw">const</span> block_words = wordsFromLittleEndianBytes(<span class="tok-number">16</span>, self.block);</span> <span class="line" id="L322"> <span class="tok-kw">return</span> Output{</span> <span class="line" id="L323"> .input_chaining_value = self.chaining_value,</span> <span class="line" id="L324"> .block_words = block_words,</span> <span class="line" id="L325"> .block_len = self.block_len,</span> <span class="line" id="L326"> .counter = self.chunk_counter,</span> <span class="line" id="L327"> .flags = self.flags \| self.startFlag() \| CHUNK_END,</span> <span class="line" id="L328"> };</span> <span class="line" id="L329"> }</span> <span class="line" id="L330">};</span> <span class="line" id="L331"></span> <span class="line" id="L332"><span class="tok-kw">fn</span> <span class="tok-fn">parentOutput</span>(</span> <span class="line" id="L333"> left_child_cv: [<span class="tok-number">8</span>]<span class="tok-type">u32</span>,</span> <span class="line" id="L334"> right_child_cv: [<span class="tok-number">8</span>]<span class="tok-type">u32</span>,</span> <span class="line" id="L335"> key: [<span class="tok-number">8</span>]<span class="tok-type">u32</span>,</span> <span class="line" id="L336"> flags: <span class="tok-type">u8</span>,</span> <span class="line" id="L337">) Output {</span> <span class="line" id="L338"> <span class="tok-kw">var</span> block_words: [<span class="tok-number">16</span>]<span class="tok-type">u32</span> <span class="tok-kw">align</span>(<span class="tok-number">16</span>) = <span class="tok-null">undefined</span>;</span> <span class="line" id="L339"> block_words[<span class="tok-number">0</span>..<span class="tok-number">8</span>]. = left_child_cv;</span> <span class="line" id="L340"> block_words[<span class="tok-number">8</span>..].* = right_child_cv;</span> <span class="line" id="L341"> <span class="tok-kw">return</span> Output{</span> <span class="line" id="L342"> .input_chaining_value = key,</span> <span class="line" id="L343"> .block_words = block_words,</span> <span class="line" id="L344"> .block_len = BLOCK_LEN, <span class="tok-comment">// Always BLOCK_LEN (64) for parent nodes.</span> </span> <span class="line" id="L345"> .counter = <span class="tok-number">0</span>, <span class="tok-comment">// Always 0 for parent nodes.</span> </span> <span class="line" id="L346"> .flags = PARENT \| flags,</span> <span class="line" id="L347"> };</span> <span class="line" id="L348">}</span> <span class="line" id="L349"></span> <span class="line" id="L350"><span class="tok-kw">fn</span> <span class="tok-fn">parentCv</span>(</span> <span class="line" id="L351"> left_child_cv: [<span class="tok-number">8</span>]<span class="tok-type">u32</span>,</span> <span class="line" id="L352"> right_child_cv: [<span class="tok-number">8</span>]<span class="tok-type">u32</span>,</span> <span class="line" id="L353"> key: [<span class="tok-number">8</span>]<span class="tok-type">u32</span>,</span> <span class="line" id="L354"> flags: <span class="tok-type">u8</span>,</span> <span class="line" id="L355">) [<span class="tok-number">8</span>]<span class="tok-type">u32</span> {</span> <span class="line" id="L356"> <span class="tok-kw">return</span> parentOutput(left_child_cv, right_child_cv, key, flags).chainingValue();</span> <span class="line" id="L357">}</span> <span class="line" id="L358"></span> <span class="line" id="L359"><span class="tok-comment">/// An incremental hasher that can accept any number of writes.</span></span> <span class="line" id="L360"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Blake3 = <span class="tok-kw">struct</span> {</span> <span class="line" id="L361"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Options = <span class="tok-kw">struct</span> { key: ?[digest_length]<span class="tok-type">u8</span> = <span class="tok-null">null</span> };</span> <span class="line" id="L362"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> KdfOptions = <span class="tok-kw">struct</span> {};</span> <span class="line" id="L363"></span> <span class="line" id="L364"> chunk_state: ChunkState,</span> <span class="line" id="L365"> key: [<span class="tok-number">8</span>]<span class="tok-type">u32</span>,</span> <span class="line" id="L366"> cv_stack: [<span class="tok-number">54</span>][<span class="tok-number">8</span>]<span class="tok-type">u32</span> = <span class="tok-null">undefined</span>, <span class="tok-comment">// Space for 54 subtree chaining values:</span> </span> <span class="line" id="L367"> cv_stack_len: <span class="tok-type">u8</span> = <span class="tok-number">0</span>, <span class="tok-comment">// 2^54 * CHUNK_LEN = 2^64</span> </span> <span class="line" id="L368"> flags: <span class="tok-type">u8</span>,</span> <span class="line" id="L369"></span> <span class="line" id="L370"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> block_length = BLOCK_LEN;</span> <span class="line" id="L371"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> digest_length = OUT_LEN;</span> <span class="line" id="L372"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> key_length = KEY_LEN;</span> <span class="line" id="L373"></span> <span class="line" id="L374"> <span class="tok-kw">fn</span> <span class="tok-fn">init_internal</span>(key: [<span class="tok-number">8</span>]<span class="tok-type">u32</span>, flags: <span class="tok-type">u8</span>) Blake3 {</span> <span class="line" id="L375"> <span class="tok-kw">return</span> Blake3{</span> <span class="line" id="L376"> .chunk_state = ChunkState.init(key, <span class="tok-number">0</span>, flags),</span> <span class="line" id="L377"> .key = key,</span> <span class="line" id="L378"> .flags = flags,</span> <span class="line" id="L379"> };</span> <span class="line" id="L380"> }</span> <span class="line" id="L381"></span> <span class="line" id="L382"> <span class="tok-comment">/// Construct a new `Blake3` for the hash function, with an optional key</span></span> <span class="line" id="L383"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">init</span>(options: Options) Blake3 {</span> <span class="line" id="L384"> <span class="tok-kw">if</span> (options.key) \|key\| {</span> <span class="line" id="L385"> <span class="tok-kw">const</span> key_words = wordsFromLittleEndianBytes(<span class="tok-number">8</span>, key);</span> <span class="line" id="L386"> <span class="tok-kw">return</span> Blake3.init_internal(key_words, KEYED_HASH);</span> <span class="line" id="L387"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L388"> <span class="tok-kw">return</span> Blake3.init_internal(IV, <span class="tok-number">0</span>);</span> <span class="line" id="L389"> }</span> <span class="line" id="L390"> }</span> <span class="line" id="L391"></span> <span class="line" id="L392"> <span class="tok-comment">/// Construct a new `Blake3` for the key derivation function. The context</span></span> <span class="line" id="L393"> <span class="tok-comment">/// string should be hardcoded, globally unique, and application-specific.</span></span> <span class="line" id="L394"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">initKdf</span>(context: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, options: KdfOptions) Blake3 {</span> <span class="line" id="L395"> _ = options;</span> <span class="line" id="L396"> <span class="tok-kw">var</span> context_hasher = Blake3.init_internal(IV, DERIVE_KEY_CONTEXT);</span> <span class="line" id="L397"> context_hasher.update(context);</span> <span class="line" id="L398"> <span class="tok-kw">var</span> context_key: [KEY_LEN]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L399"> context_hasher.final(context_key[<span class="tok-number">0</span>..]);</span> <span class="line" id="L400"> <span class="tok-kw">const</span> context_key_words = wordsFromLittleEndianBytes(<span class="tok-number">8</span>, context_key);</span> <span class="line" id="L401"> <span class="tok-kw">return</span> Blake3.init_internal(context_key_words, DERIVE_KEY_MATERIAL);</span> <span class="line" id="L402"> }</span> <span class="line" id="L403"></span> <span class="line" id="L404"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">hash</span>(b: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, out: []<span class="tok-type">u8</span>, options: Options) <span class="tok-type">void</span> {</span> <span class="line" id="L405"> <span class="tok-kw">var</span> d = Blake3.init(options);</span> <span class="line" id="L406"> d.update(b);</span> <span class="line" id="L407"> d.final(out);</span> <span class="line" id="L408"> }</span> <span class="line" id="L409"></span> <span class="line" id="L410"> <span class="tok-kw">fn</span> <span class="tok-fn">pushCv</span>(self: Blake3, cv: [<span class="tok-number">8</span>]<span class="tok-type">u32</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L411"> self.cv_stack[self.cv_stack_len] = cv;</span> <span class="line" id="L412"> self.cv_stack_len += <span class="tok-number">1</span>;</span> <span class="line" id="L413"> }</span> <span class="line" id="L414"></span> <span class="line" id="L415"> <span class="tok-kw">fn</span> <span class="tok-fn">popCv</span>(self: Blake3) [<span class="tok-number">8</span>]<span class="tok-type">u32</span> {</span> <span class="line" id="L416"> self.cv_stack_len -= <span class="tok-number">1</span>;</span> <span class="line" id="L417"> <span class="tok-kw">return</span> self.cv_stack[self.cv_stack_len];</span> <span class="line" id="L418"> }</span> <span class="line" id="L419"></span> <span class="line" id="L420"> <span class="tok-comment">// Section 5.1.2 of the BLAKE3 spec explains this algorithm in more detail.</span> </span> <span class="line" id="L421"> <span class="tok-kw">fn</span> <span class="tok-fn">addChunkChainingValue</span>(self: Blake3, first_cv: [<span class="tok-number">8</span>]<span class="tok-type">u32</span>, total_chunks: <span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L422"> <span class="tok-comment">// This chunk might complete some subtrees. For each completed subtree,</span> </span> <span class="line" id="L423"> <span class="tok-comment">// its left child will be the current top entry in the CV stack, and</span> </span> <span class="line" id="L424"> <span class="tok-comment">// its right child will be the current value of `new_cv`. Pop each left</span> </span> <span class="line" id="L425"> <span class="tok-comment">// child off the stack, merge it with `new_cv`, and overwrite `new_cv`</span> </span> <span class="line" id="L426"> <span class="tok-comment">// with the result. After all these merges, push the final value of</span> </span> <span class="line" id="L427"> <span class="tok-comment">// `new_cv` onto the stack. The number of completed subtrees is given</span> </span> <span class="line" id="L428"> <span class="tok-comment">// by the number of trailing 0-bits in the new total number of chunks.</span> </span> <span class="line" id="L429"> <span class="tok-kw">var</span> new_cv = first_cv;</span> <span class="line" id="L430"> <span class="tok-kw">var</span> chunk_counter = total_chunks;</span> <span class="line" id="L431"> <span class="tok-kw">while</span> (chunk_counter & <span class="tok-number">1</span> == <span class="tok-number">0</span>) {</span> <span class="line" id="L432"> new_cv = parentCv(self.popCv(), new_cv, self.key, self.flags);</span> <span class="line" id="L433"> chunk_counter >>= <span class="tok-number">1</span>;</span> <span class="line" id="L434"> }</span> <span class="line" id="L435"> self.pushCv(new_cv);</span> <span class="line" id="L436"> }</span> <span class="line" id="L437"></span> <span class="line" id="L438"> <span class="tok-comment">/// Add input to the hash state. This can be called any number of times.</span></span> <span class="line" id="L439"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">update</span>(self: Blake3, input_slice: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L440"> <span class="tok-kw">var</span> input = input_slice;</span> <span class="line" id="L441"> <span class="tok-kw">while</span> (input.len > <span class="tok-number">0</span>) {</span> <span class="line" id="L442"> <span class="tok-comment">// If the current chunk is complete, finalize it and reset the</span> </span> <span class="line" id="L443"> <span class="tok-comment">// chunk state. More input is coming, so this chunk is not ROOT.</span> </span> <span class="line" id="L444"> <span class="tok-kw">if</span> (self.chunk_state.len() == CHUNK_LEN) {</span> <span class="line" id="L445"> <span class="tok-kw">const</span> chunk_cv = self.chunk_state.output().chainingValue();</span> <span class="line" id="L446"> <span class="tok-kw">const</span> total_chunks = self.chunk_state.chunk_counter + <span class="tok-number">1</span>;</span> <span class="line" id="L447"> self.addChunkChainingValue(chunk_cv, total_chunks);</span> <span class="line" id="L448"> self.chunk_state = ChunkState.init(self.key, total_chunks, self.flags);</span> <span class="line" id="L449"> }</span> <span class="line" id="L450"></span> <span class="line" id="L451"> <span class="tok-comment">// Compress input bytes into the current chunk state.</span> </span> <span class="line" id="L452"> <span class="tok-kw">const</span> want = CHUNK_LEN - self.chunk_state.len();</span> <span class="line" id="L453"> <span class="tok-kw">const</span> take = <span class="tok-builtin">@min</span>(want, input.len);</span> <span class="line" id="L454"> self.chunk_state.update(input[<span class="tok-number">0</span>..take]);</span> <span class="line" id="L455"> input = input[take..];</span> <span class="line" id="L456"> }</span> <span class="line" id="L457"> }</span> <span class="line" id="L458"></span> <span class="line" id="L459"> <span class="tok-comment">/// Finalize the hash and write any number of output bytes.</span></span> <span class="line" id="L460"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">final</span>(self: <span class="tok-kw">const</span> Blake3, out_slice: []<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L461"> <span class="tok-comment">// Starting with the Output from the current chunk, compute all the</span> </span> <span class="line" id="L462"> <span class="tok-comment">// parent chaining values along the right edge of the tree, until we</span> </span> <span class="line" id="L463"> <span class="tok-comment">// have the root Output.</span> </span> <span class="line" id="L464"> <span class="tok-kw">var</span> output = self.chunk_state.output();</span> <span class="line" id="L465"> <span class="tok-kw">var</span> parent_nodes_remaining: <span class="tok-type">usize</span> = self.cv_stack_len;</span> <span class="line" id="L466"> <span class="tok-kw">while</span> (parent_nodes_remaining > <span class="tok-number">0</span>) {</span> <span class="line" id="L467"> parent_nodes_remaining -= <span class="tok-number">1</span>;</span> <span class="line" id="L468"> output = parentOutput(</span> <span class="line" id="L469"> self.cv_stack[parent_nodes_remaining],</span> <span class="line" id="L470"> output.chainingValue(),</span> <span class="line" id="L471"> self.key,</span> <span class="line" id="L472"> self.flags,</span> <span class="line" id="L473"> );</span> <span class="line" id="L474"> }</span> <span class="line" id="L475"> output.rootOutputBytes(out_slice);</span> <span class="line" id="L476"> }</span> <span class="line" id="L477"></span> <span class="line" id="L478"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Error = <span class="tok-kw">error</span>{};</span> <span class="line" id="L479"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Writer = std.io.Writer(Blake3, Error, write);</span> <span class="line" id="L480"></span> <span class="line" id="L481"> <span class="tok-kw">fn</span> <span class="tok-fn">write</span>(self: Blake3, bytes: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) Error!<span class="tok-type">usize</span> {</span> <span class="line" id="L482"> self.update(bytes);</span> <span class="line" id="L483"> <span class="tok-kw">return</span> bytes.len;</span> <span class="line" id="L484"> }</span> <span class="line" id="L485"></span> <span class="line" id="L486"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">writer</span>(self: Blake3) Writer {</span> <span class="line" id="L487"> <span class="tok-kw">return</span> .{ .context = self };</span> <span class="line" id="L488"> }</span> <span class="line" id="L489">};</span> <span class="line" id="L490"></span> <span class="line" id="L491"><span class="tok-comment">// Use named type declarations to workaround crash with anonymous structs (issue #4373).</span> </span> <span class="line" id="L492"><span class="tok-kw">const</span> ReferenceTest = <span class="tok-kw">struct</span> {</span> <span class="line" id="L493"> key: <span class="tok-kw">const</span> [KEY_LEN]<span class="tok-type">u8</span>,</span> <span class="line" id="L494"> context_string: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L495"> cases: []<span class="tok-kw">const</span> ReferenceTestCase,</span> <span class="line" id="L496">};</span> <span class="line" id="L497"></span> <span class="line" id="L498"><span class="tok-kw">const</span> ReferenceTestCase = <span class="tok-kw">struct</span> {</span> <span class="line" id="L499"> input_len: <span class="tok-type">usize</span>,</span> <span class="line" id="L500"> hash: <span class="tok-kw">const</span> [<span class="tok-number">262</span>]<span class="tok-type">u8</span>,</span> <span class="line" id="L501"> keyed_hash: <span class="tok-kw">const</span> [<span class="tok-number">262</span>]<span class="tok-type">u8</span>,</span> <span class="line" id="L502"> derive_key: <span class="tok-kw">const</span> [<span class="tok-number">262</span>]<span class="tok-type">u8</span>,</span> <span class="line" id="L503">};</span> <span class="line" id="L504"></span> <span class="line" id="L505"><span class="tok-comment">// Each test is an input length and three outputs, one for each of the `hash`, `keyed_hash`, and</span> </span> <span class="line" id="L506"><span class="tok-comment">// `derive_key` modes. The input in each case is filled with a 251-byte-long repeating pattern:</span> </span> <span class="line" id="L507"><span class="tok-comment">// 0, 1, 2, ..., 249, 250, 0, 1, ... The key used with `keyed_hash` is the 32-byte ASCII string</span> </span> <span class="line" id="L508"><span class="tok-comment">// given in the `key` field below. For `derive_key`, the test input is used as the input key, and</span> </span> <span class="line" id="L509"><span class="tok-comment">// the context string is 'BLAKE3 2019-12-27 16:29:52 test vectors context'. (As good practice for</span> </span> <span class="line" id="L510"><span class="tok-comment">// following the security requirements of `derive_key`, test runners should make that context</span> </span> <span class="line" id="L511"><span class="tok-comment">// string a hardcoded constant, and we do not provided it in machine-readable form.) Outputs are</span> </span> <span class="line" id="L512"><span class="tok-comment">// encoded as hexadecimal. Each case is an extended output, and implementations should also check</span> </span> <span class="line" id="L513"><span class="tok-comment">// that the first 32 bytes match their default-length output.</span> </span> <span class="line" id="L514"><span class="tok-comment">//</span> </span> <span class="line" id="L515"><span class="tok-comment">// Source: https://github.com/BLAKE3-team/BLAKE3/blob/92d421dea1a89e2f079f4dbd93b0dab41234b279/test_vectors/test_vectors.json</span> </span> <span class="line" id="L516"><span class="tok-kw">const</span> reference_test = ReferenceTest{</span> <span class="line" id="L517"> .key = <span class="tok-str">"whats the Elvish word for friend"</span>,</span> <span class="line" id="L518"> .context_string = <span class="tok-str">"BLAKE3 2019-12-27 16:29:52 test vectors context"</span>,</span> <span class="line" id="L519"> .cases = &[_]ReferenceTestCase{</span> <span class="line" id="L520"> .{</span> <span class="line" id="L521"> .input_len = <span class="tok-number">0</span>,</span> <span class="line" id="L522"> .hash = <span class="tok-str">"af1349b9f5f9a1a6a0404dea36dcc9499bcb25c9adc112b7cc9a93cae41f3262e00f03e7b69af26b7faaf09fcd333050338ddfe085b8cc869ca98b206c08243a26f5487789e8f660afe6c99ef9e0c52b92e7393024a80459cf91f476f9ffdbda7001c22e159b402631f277ca96f2defdf1078282314e763699a31c5363165421cce14d"</span>,</span> <span class="line" id="L523"> .keyed_hash = <span class="tok-str">"92b2b75604ed3c761f9d6f62392c8a9227ad0ea3f09573e783f1498a4ed60d26b18171a2f22a4b94822c701f107153dba24918c4bae4d2945c20ece13387627d3b73cbf97b797d5e59948c7ef788f54372df45e45e4293c7dc18c1d41144a9758be58960856be1eabbe22c2653190de560ca3b2ac4aa692a9210694254c371e851bc8f"</span>,</span> <span class="line" id="L524"> .derive_key = <span class="tok-str">"2cc39783c223154fea8dfb7c1b1660f2ac2dcbd1c1de8277b0b0dd39b7e50d7d905630c8be290dfcf3e6842f13bddd573c098c3f17361f1f206b8cad9d088aa4a3f746752c6b0ce6a83b0da81d59649257cdf8eb3e9f7d4998e41021fac119deefb896224ac99f860011f73609e6e0e4540f93b273e56547dfd3aa1a035ba6689d89a0"</span>,</span> <span class="line" id="L525"> },</span> <span class="line" id="L526"> .{</span> <span class="line" id="L527"> .input_len = <span class="tok-number">1</span>,</span> <span class="line" id="L528"> .hash = <span class="tok-str">"2d3adedff11b61f14c886e35afa036736dcd87a74d27b5c1510225d0f592e213c3a6cb8bf623e20cdb535f8d1a5ffb86342d9c0b64aca3bce1d31f60adfa137b358ad4d79f97b47c3d5e79f179df87a3b9776ef8325f8329886ba42f07fb138bb502f4081cbcec3195c5871e6c23e2cc97d3c69a613eba131e5f1351f3f1da786545e5"</span>,</span> <span class="line" id="L529"> .keyed_hash = <span class="tok-str">"6d7878dfff2f485635d39013278ae14f1454b8c0a3a2d34bc1ab38228a80c95b6568c0490609413006fbd428eb3fd14e7756d90f73a4725fad147f7bf70fd61c4e0cf7074885e92b0e3f125978b4154986d4fb202a3f331a3fb6cf349a3a70e49990f98fe4289761c8602c4e6ab1138d31d3b62218078b2f3ba9a88e1d08d0dd4cea11"</span>,</span> <span class="line" id="L530"> .derive_key = <span class="tok-str">"b3e2e340a117a499c6cf2398a19ee0d29cca2bb7404c73063382693bf66cb06c5827b91bf889b6b97c5477f535361caefca0b5d8c4746441c57617111933158950670f9aa8a05d791daae10ac683cbef8faf897c84e6114a59d2173c3f417023a35d6983f2c7dfa57e7fc559ad751dbfb9ffab39c2ef8c4aafebc9ae973a64f0c76551"</span>,</span> <span class="line" id="L531"> },</span> <span class="line" id="L532"> .{</span> <span class="line" id="L533"> .input_len = <span class="tok-number">1023</span>,</span> <span class="line" id="L534"> .hash = <span class="tok-str">"10108970eeda3eb932baac1428c7a2163b0e924c9a9e25b35bba72b28f70bd11a182d27a591b05592b15607500e1e8dd56bc6c7fc063715b7a1d737df5bad3339c56778957d870eb9717b57ea3d9fb68d1b55127bba6a906a4a24bbd5acb2d123a37b28f9e9a81bbaae360d58f85e5fc9d75f7c370a0cc09b6522d9c8d822f2f28f485"</span>,</span> <span class="line" id="L535"> .keyed_hash = <span class="tok-str">"c951ecdf03288d0fcc96ee3413563d8a6d3589547f2c2fb36d9786470f1b9d6e890316d2e6d8b8c25b0a5b2180f94fb1a158ef508c3cde45e2966bd796a696d3e13efd86259d756387d9becf5c8bf1ce2192b87025152907b6d8cc33d17826d8b7b9bc97e38c3c85108ef09f013e01c229c20a83d9e8efac5b37470da28575fd755a10"</span>,</span> <span class="line" id="L536"> .derive_key = <span class="tok-str">"74a16c1c3d44368a86e1ca6df64be6a2f64cce8f09220787450722d85725dea59c413264404661e9e4d955409dfe4ad3aa487871bcd454ed12abfe2c2b1eb7757588cf6cb18d2eccad49e018c0d0fec323bec82bf1644c6325717d13ea712e6840d3e6e730d35553f59eff5377a9c350bcc1556694b924b858f329c44ee64b884ef00d"</span>,</span> <span class="line" id="L537"> },</span> <span class="line" id="L538"> .{</span> <span class="line" id="L539"> .input_len = <span class="tok-number">1024</span>,</span> <span class="line" id="L540"> .hash = <span class="tok-str">"42214739f095a406f3fc83deb889744ac00df831c10daa55189b5d121c855af71cf8107265ecdaf8505b95d8fcec83a98a6a96ea5109d2c179c47a387ffbb404756f6eeae7883b446b70ebb144527c2075ab8ab204c0086bb22b7c93d465efc57f8d917f0b385c6df265e77003b85102967486ed57db5c5ca170ba441427ed9afa684e"</span>,</span> <span class="line" id="L541"> .keyed_hash = <span class="tok-str">"75c46f6f3d9eb4f55ecaaee480db732e6c2105546f1e675003687c31719c7ba4a78bc838c72852d4f49c864acb7adafe2478e824afe51c8919d06168414c265f298a8094b1ad813a9b8614acabac321f24ce61c5a5346eb519520d38ecc43e89b5000236df0597243e4d2493fd626730e2ba17ac4d8824d09d1a4a8f57b8227778e2de"</span>,</span> <span class="line" id="L542"> .derive_key = <span class="tok-str">"7356cd7720d5b66b6d0697eb3177d9f8d73a4a5c5e968896eb6a6896843027066c23b601d3ddfb391e90d5c8eccdef4ae2a264bce9e612ba15e2bc9d654af1481b2e75dbabe615974f1070bba84d56853265a34330b4766f8e75edd1f4a1650476c10802f22b64bd3919d246ba20a17558bc51c199efdec67e80a227251808d8ce5bad"</span>,</span> <span class="line" id="L543"> },</span> <span class="line" id="L544"> .{</span> <span class="line" id="L545"> .input_len = <span class="tok-number">1025</span>,</span> <span class="line" id="L546"> .hash = <span class="tok-str">"d00278ae47eb27b34faecf67b4fe263f82d5412916c1ffd97c8cb7fb814b8444f4c4a22b4b399155358a994e52bf255de60035742ec71bd08ac275a1b51cc6bfe332b0ef84b409108cda080e6269ed4b3e2c3f7d722aa4cdc98d16deb554e5627be8f955c98e1d5f9565a9194cad0c4285f93700062d9595adb992ae68ff12800ab67a"</span>,</span> <span class="line" id="L547"> .keyed_hash = <span class="tok-str">"357dc55de0c7e382c900fd6e320acc04146be01db6a8ce7210b7189bd664ea69362396b77fdc0d2634a552970843722066c3c15902ae5097e00ff53f1e116f1cd5352720113a837ab2452cafbde4d54085d9cf5d21ca613071551b25d52e69d6c81123872b6f19cd3bc1333edf0c52b94de23ba772cf82636cff4542540a7738d5b930"</span>,</span> <span class="line" id="L548"> .derive_key = <span class="tok-str">"effaa245f065fbf82ac186839a249707c3bddf6d3fdda22d1b95a3c970379bcb5d31013a167509e9066273ab6e2123bc835b408b067d88f96addb550d96b6852dad38e320b9d940f86db74d398c770f462118b35d2724efa13da97194491d96dd37c3c09cbef665953f2ee85ec83d88b88d11547a6f911c8217cca46defa2751e7f3ad"</span>,</span> <span class="line" id="L549"> },</span> <span class="line" id="L550"> .{</span> <span class="line" id="L551"> .input_len = <span class="tok-number">2048</span>,</span> <span class="line" id="L552"> .hash = <span class="tok-str">"e776b6028c7cd22a4d0ba182a8bf62205d2ef576467e838ed6f2529b85fba24a9a60bf80001410ec9eea6698cd537939fad4749edd484cb541aced55cd9bf54764d063f23f6f1e32e12958ba5cfeb1bf618ad094266d4fc3c968c2088f677454c288c67ba0dba337b9d91c7e1ba586dc9a5bc2d5e90c14f53a8863ac75655461cea8f9"</span>,</span> <span class="line" id="L553"> .keyed_hash = <span class="tok-str">"879cf1fa2ea0e79126cb1063617a05b6ad9d0b696d0d757cf053439f60a99dd10173b961cd574288194b23ece278c330fbb8585485e74967f31352a8183aa782b2b22f26cdcadb61eed1a5bc144b8198fbb0c13abbf8e3192c145d0a5c21633b0ef86054f42809df823389ee40811a5910dcbd1018af31c3b43aa55201ed4edaac74fe"</span>,</span> <span class="line" id="L554"> .derive_key = <span class="tok-str">"7b2945cb4fef70885cc5d78a87bf6f6207dd901ff239201351ffac04e1088a23e2c11a1ebffcea4d80447867b61badb1383d842d4e79645d48dd82ccba290769caa7af8eaa1bd78a2a5e6e94fbdab78d9c7b74e894879f6a515257ccf6f95056f4e25390f24f6b35ffbb74b766202569b1d797f2d4bd9d17524c720107f985f4ddc583"</span>,</span> <span class="line" id="L555"> },</span> <span class="line" id="L556"> .{</span> <span class="line" id="L557"> .input_len = <span class="tok-number">2049</span>,</span> <span class="line" id="L558"> .hash = <span class="tok-str">"5f4d72f40d7a5f82b15ca2b2e44b1de3c2ef86c426c95c1af0b687952256303096de31d71d74103403822a2e0bc1eb193e7aecc9643a76b7bbc0c9f9c52e8783aae98764ca468962b5c2ec92f0c74eb5448d519713e09413719431c802f948dd5d90425a4ecdadece9eb178d80f26efccae630734dff63340285adec2aed3b51073ad3"</span>,</span> <span class="line" id="L559"> .keyed_hash = <span class="tok-str">"9f29700902f7c86e514ddc4df1e3049f258b2472b6dd5267f61bf13983b78dd5f9a88abfefdfa1e00b418971f2b39c64ca621e8eb37fceac57fd0c8fc8e117d43b81447be22d5d8186f8f5919ba6bcc6846bd7d50726c06d245672c2ad4f61702c646499ee1173daa061ffe15bf45a631e2946d616a4c345822f1151284712f76b2b0e"</span>,</span> <span class="line" id="L560"> .derive_key = <span class="tok-str">"2ea477c5515cc3dd606512ee72bb3e0e758cfae7232826f35fb98ca1bcbdf27316d8e9e79081a80b046b60f6a263616f33ca464bd78d79fa18200d06c7fc9bffd808cc4755277a7d5e09da0f29ed150f6537ea9bed946227ff184cc66a72a5f8c1e4bd8b04e81cf40fe6dc4427ad5678311a61f4ffc39d195589bdbc670f63ae70f4b6"</span>,</span> <span class="line" id="L561"> },</span> <span class="line" id="L562"> .{</span> <span class="line" id="L563"> .input_len = <span class="tok-number">3072</span>,</span> <span class="line" id="L564"> .hash = <span class="tok-str">"b98cb0ff3623be03326b373de6b9095218513e64f1ee2edd2525c7ad1e5cffd29a3f6b0b978d6608335c09dc94ccf682f9951cdfc501bfe47b9c9189a6fc7b404d120258506341a6d802857322fbd20d3e5dae05b95c88793fa83db1cb08e7d8008d1599b6209d78336e24839724c191b2a52a80448306e0daa84a3fdb566661a37e11"</span>,</span> <span class="line" id="L565"> .keyed_hash = <span 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class="tok-str">"aae792484c8efe4f19e2ca7d371d8c467ffb10748d8a5a1ae579948f718a2a635fe51a27db045a567c1ad51be5aa34c01c6651c4d9b5b5ac5d0fd58cf18dd61a47778566b797a8c67df7b1d60b97b19288d2d877bb2df417ace009dcb0241ca1257d62712b6a4043b4ff33f690d849da91ea3bf711ed583cb7b7a7da2839ba71309bbf"</span>,</span> <span class="line" id="L625"> .keyed_hash = <span class="tok-str">"dc9637c8845a770b4cbf76b8daec0eebf7dc2eac11498517f08d44c8fc00d58a4834464159dcbc12a0ba0c6d6eb41bac0ed6585cabfe0aca36a375e6c5480c22afdc40785c170f5a6b8a1107dbee282318d00d915ac9ed1143ad40765ec120042ee121cd2baa36250c618adaf9e27260fda2f94dea8fb6f08c04f8f10c78292aa46102"</span>,</span> <span class="line" id="L626"> .derive_key = <span class="tok-str">"ad01d7ae4ad059b0d33baa3c01319dcf8088094d0359e5fd45d6aeaa8b2d0c3d4c9e58958553513b67f84f8eac653aeeb02ae1d5672dcecf91cd9985a0e67f4501910ecba25555395427ccc7241d70dc21c190e2aadee875e5aae6bf1912837e53411dabf7a56cbf8e4fb780432b0d7fe6cec45024a0788cf5874616407757e9e6bef7"</span>,</span> <span class="line" id="L627"> },</span> <span class="line" id="L628"> .{</span> <span class="line" id="L629"> .input_len = <span class="tok-number">8193</span>,</span> <span class="line" id="L630"> .hash = <span class="tok-str">"bab6c09cb8ce8cf459261398d2e7aef35700bf488116ceb94a36d0f5f1b7bc3bb2282aa69be089359ea1154b9a9286c4a56af4de975a9aa4a5c497654914d279bea60bb6d2cf7225a2fa0ff5ef56bbe4b149f3ed15860f78b4e2ad04e158e375c1e0c0b551cd7dfc82f1b155c11b6b3ed51ec9edb30d133653bb5709d1dbd55f4e1ff6"</span>,</span> <span class="line" id="L631"> .keyed_hash = <span class="tok-str">"954a2a75420c8d6547e3ba5b98d963e6fa6491addc8c023189cc519821b4a1f5f03228648fd983aef045c2fa8290934b0866b615f585149587dda2299039965328835a2b18f1d63b7e300fc76ff260b571839fe44876a4eae66cbac8c67694411ed7e09df51068a22c6e67d6d3dd2cca8ff12e3275384006c80f4db68023f24eebba57"</span>,</span> <span class="line" id="L632"> .derive_key = <span class="tok-str">"af1e0346e389b17c23200270a64aa4e1ead98c61695d917de7d5b00491c9b0f12f20a01d6d622edf3de026a4db4e4526225debb93c1237934d71c7340bb5916158cbdafe9ac3225476b6ab57a12357db3abbad7a26c6e66290e44034fb08a20a8d0ec264f309994d2810c49cfba6989d7abb095897459f5425adb48aba07c5fb3c83c0"</span>,</span> <span class="line" id="L633"> },</span> <span class="line" id="L634"> .{</span> <span class="line" id="L635"> .input_len = <span class="tok-number">16384</span>,</span> <span class="line" id="L636"> .hash = <span class="tok-str">"f875d6646de28985646f34ee13be9a576fd515f76b5b0a26bb324735041ddde49d764c270176e53e97bdffa58d549073f2c660be0e81293767ed4e4929f9ad34bbb39a529334c57c4a381ffd2a6d4bfdbf1482651b172aa883cc13408fa67758a3e47503f93f87720a3177325f7823251b85275f64636a8f1d599c2e49722f42e93893"</span>,</span> <span class="line" id="L637"> .keyed_hash = <span class="tok-str">"9e9fc4eb7cf081ea7c47d1807790ed211bfec56aa25bb7037784c13c4b707b0df9e601b101e4cf63a404dfe50f2e1865bb12edc8fca166579ce0c70dba5a5c0fc960ad6f3772183416a00bd29d4c6e651ea7620bb100c9449858bf14e1ddc9ecd35725581ca5b9160de04060045993d972571c3e8f71e9d0496bfa744656861b169d65"</span>,</span> <span class="line" id="L638"> .derive_key = <span class="tok-str">"160e18b5878cd0df1c3af85eb25a0db5344d43a6fbd7a8ef4ed98d0714c3f7e160dc0b1f09caa35f2f417b9ef309dfe5ebd67f4c9507995a531374d099cf8ae317542e885ec6f589378864d3ea98716b3bbb65ef4ab5e0ab5bb298a501f19a41ec19af84a5e6b428ecd813b1a47ed91c9657c3fba11c406bc316768b58f6802c9e9b57"</span>,</span> <span class="line" id="L639"> },</span> <span class="line" id="L640"> .{</span> <span class="line" id="L641"> .input_len = <span class="tok-number">31744</span>,</span> <span class="line" id="L642"> .hash = <span class="tok-str">"62b6960e1a44bcc1eb1a611a8d6235b6b4b78f32e7abc4fb4c6cdcce94895c47860cc51f2b0c28a7b77304bd55fe73af663c02d3f52ea053ba43431ca5bab7bfea2f5e9d7121770d88f70ae9649ea713087d1914f7f312147e247f87eb2d4ffef0ac978bf7b6579d57d533355aa20b8b77b13fd09748728a5cc327a8ec470f4013226f"</span>,</span> <span class="line" id="L643"> .keyed_hash = <span class="tok-str">"efa53b389ab67c593dba624d898d0f7353ab99e4ac9d42302ee64cbf9939a4193a7258db2d9cd32a7a3ecfce46144114b15c2fcb68a618a976bd74515d47be08b628be420b5e830fade7c080e351a076fbc38641ad80c736c8a18fe3c66ce12f95c61c2462a9770d60d0f77115bbcd3782b593016a4e728d4c06cee4505cb0c08a42ec"</span>,</span> <span class="line" id="L644"> .derive_key = <span class="tok-str">"39772aef80e0ebe60596361e45b061e8f417429d529171b6764468c22928e28e9759adeb797a3fbf771b1bcea30150a020e317982bf0d6e7d14dd9f064bc11025c25f31e81bd78a921db0174f03dd481d30e93fd8e90f8b2fee209f849f2d2a52f31719a490fb0ba7aea1e09814ee912eba111a9fde9d5c274185f7bae8ba85d300a2b"</span>,</span> <span class="line" id="L645"> },</span> <span class="line" id="L646"> .{</span> <span class="line" id="L647"> .input_len = <span class="tok-number">102400</span>,</span> <span class="line" id="L648"> .hash = <span class="tok-str">"bc3e3d41a1146b069abffad3c0d44860cf664390afce4d9661f7902e7943e085e01c59dab908c04c3342b816941a26d69c2605ebee5ec5291cc55e15b76146e6745f0601156c3596cb75065a9c57f35585a52e1ac70f69131c23d611ce11ee4ab1ec2c009012d236648e77be9295dd0426f29b764d65de58eb7d01dd42248204f45f8e"</span>,</span> <span class="line" id="L649"> .keyed_hash = <span class="tok-str">"1c35d1a5811083fd7119f5d5d1ba027b4d01c0c6c49fb6ff2cf75393ea5db4a7f9dbdd3e1d81dcbca3ba241bb18760f207710b751846faaeb9dff8262710999a59b2aa1aca298a032d94eacfadf1aa192418eb54808db23b56e34213266aa08499a16b354f018fc4967d05f8b9d2ad87a7278337be9693fc638a3bfdbe314574ee6fc4"</span>,</span> <span class="line" id="L650"> .derive_key = <span class="tok-str">"4652cff7a3f385a6103b5c260fc1593e13c778dbe608efb092fe7ee69df6e9c6d83a3e041bc3a48df2879f4a0a3ed40e7c961c73eff740f3117a0504c2dff4786d44fb17f1549eb0ba585e40ec29bf7732f0b7e286ff8acddc4cb1e23b87ff5d824a986458dcc6a04ac83969b80637562953df51ed1a7e90a7926924d2763778be8560"</span>,</span> <span class="line" id="L651"> },</span> <span class="line" id="L652"> },</span> <span class="line" id="L653">};</span> <span class="line" id="L654"></span> <span class="line" id="L655"><span class="tok-kw">fn</span> <span class="tok-fn">testBlake3</span>(hasher: Blake3, input_len: <span class="tok-type">usize</span>, expected_hex: [<span class="tok-number">262</span>]<span class="tok-type">u8</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L656"> <span class="tok-comment">// Save initial state</span> </span> <span class="line" id="L657"> <span class="tok-kw">const</span> initial_state = hasher.;</span> <span class="line" id="L658"></span> <span class="line" id="L659"> <span class="tok-comment">// Setup input pattern</span> </span> <span class="line" id="L660"> <span class="tok-kw">var</span> input_pattern: [<span class="tok-number">251</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L661"> <span class="tok-kw">for</span> (&input_pattern, <span class="tok-number">0</span>..) \|e, i\| e. = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>(i));</span> <span class="line" id="L662"></span> <span class="line" id="L663"> <span class="tok-comment">// Write repeating input pattern to hasher</span> </span> <span class="line" id="L664"> <span class="tok-kw">var</span> input_counter = input_len;</span> <span class="line" id="L665"> <span class="tok-kw">while</span> (input_counter > <span class="tok-number">0</span>) {</span> <span class="line" id="L666"> <span class="tok-kw">const</span> update_len = <span class="tok-builtin">@min</span>(input_counter, input_pattern.len);</span> <span class="line" id="L667"> hasher.update(input_pattern[<span class="tok-number">0</span>..update_len]);</span> <span class="line" id="L668"> input_counter -= update_len;</span> <span class="line" id="L669"> }</span> <span class="line" id="L670"></span> <span class="line" id="L671"> <span class="tok-comment">// Read final hash value</span> </span> <span class="line" id="L672"> <span class="tok-kw">var</span> actual_bytes: [expected_hex.len / <span class="tok-number">2</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L673"> hasher.final(actual_bytes[<span class="tok-number">0</span>..]);</span> <span class="line" id="L674"></span> <span class="line" id="L675"> <span class="tok-comment">// Compare to expected value</span> </span> <span class="line" id="L676"> <span class="tok-kw">var</span> expected_bytes: [expected_hex.len / <span class="tok-number">2</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L677"> _ = fmt.hexToBytes(expected_bytes[<span class="tok-number">0</span>..], expected_hex[<span class="tok-number">0</span>..]) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L678"> <span class="tok-kw">try</span> testing.expectEqual(actual_bytes, expected_bytes);</span> <span class="line" id="L679"></span> <span class="line" id="L680"> <span class="tok-comment">// Restore initial state</span> </span> <span class="line" id="L681"> hasher.* = initial_state;</span> <span class="line" id="L682">}</span> <span class="line" id="L683"></span> <span class="line" id="L684"><span class="tok-kw">test</span> <span class="tok-str">"BLAKE3 reference test cases"</span> {</span> <span class="line" id="L685"> <span class="tok-kw">var</span> hash_state = Blake3.init(.{});</span> <span class="line" id="L686"> <span class="tok-kw">const</span> hash = &hash_state;</span> <span class="line" id="L687"> <span class="tok-kw">var</span> keyed_hash_state = Blake3.init(.{ .key = reference_test.key.* });</span> <span class="line" id="L688"> <span class="tok-kw">const</span> keyed_hash = &keyed_hash_state;</span> <span class="line" id="L689"> <span class="tok-kw">var</span> derive_key_state = Blake3.initKdf(reference_test.context_string, .{});</span> <span class="line" id="L690"> <span class="tok-kw">const</span> derive_key = &derive_key_state;</span> <span class="line" id="L691"></span> <span class="line" id="L692"> <span class="tok-kw">for</span> (reference_test.cases) \|t\| {</span> <span class="line" id="L693"> <span class="tok-kw">try</span> testBlake3(hash, t.input_len, t.hash.);</span> <span class="line" id="L694"> <span class="tok-kw">try</span> testBlake3(keyed_hash, t.input_len, t.keyed_hash.);</span> <span class="line" id="L695"> <span class="tok-kw">try</span> testBlake3(derive_key, t.input_len, t.derive_key.*);</span> <span class="line" id="L696"> }</span> <span class="line" id="L697">}</span> <span class="line" id="L698"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/crypto/aes.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/aes.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"../std.zig"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> builtin = <span class="tok-builtin">@import</span>(<span class="tok-str">"builtin"</span>);</span> <span class="line" id="L3"><span class="tok-kw">const</span> testing = std.testing;</span> <span class="line" id="L4"></span> <span class="line" id="L5"><span class="tok-kw">const</span> has_aesni = std.Target.x86.featureSetHas(builtin.cpu.features, .aes);</span> <span class="line" id="L6"><span class="tok-kw">const</span> has_avx = std.Target.x86.featureSetHas(builtin.cpu.features, .avx);</span> <span class="line" id="L7"><span class="tok-kw">const</span> has_armaes = std.Target.aarch64.featureSetHas(builtin.cpu.features, .aes);</span> <span class="line" id="L8"><span class="tok-comment">// C backend doesn't currently support passing vectors to inline asm.</span> </span> <span class="line" id="L9"><span class="tok-kw">const</span> impl = <span class="tok-kw">if</span> (builtin.cpu.arch == .x86_64 <span class="tok-kw">and</span> builtin.zig_backend != .stage2_c <span class="tok-kw">and</span> has_aesni <span class="tok-kw">and</span> has_avx) impl: {</span> <span class="line" id="L10"> <span class="tok-kw">break</span> :impl <span class="tok-builtin">@import</span>(<span class="tok-str">"aes/aesni.zig"</span>);</span> <span class="line" id="L11">} <span class="tok-kw">else</span> <span class="tok-kw">if</span> (builtin.cpu.arch == .aarch64 <span class="tok-kw">and</span> builtin.zig_backend != .stage2_c <span class="tok-kw">and</span> has_armaes)</span> <span class="line" id="L12">impl: {</span> <span class="line" id="L13"> <span class="tok-kw">break</span> :impl <span class="tok-builtin">@import</span>(<span class="tok-str">"aes/armcrypto.zig"</span>);</span> <span class="line" id="L14">} <span class="tok-kw">else</span> impl: {</span> <span class="line" id="L15"> <span class="tok-kw">break</span> :impl <span class="tok-builtin">@import</span>(<span class="tok-str">"aes/soft.zig"</span>);</span> <span class="line" id="L16">};</span> <span class="line" id="L17"></span> <span class="line" id="L18"><span class="tok-comment">/// `true` if AES is backed by hardware (AES-NI on x86_64, ARM Crypto Extensions on AArch64).</span></span> <span class="line" id="L19"><span class="tok-comment">/// Software implementations are much slower, and should be avoided if possible.</span></span> <span class="line" id="L20"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> has_hardware_support =</span> <span class="line" id="L21"> (builtin.cpu.arch == .x86_64 <span class="tok-kw">and</span> has_aesni <span class="tok-kw">and</span> has_avx) <span class="tok-kw">or</span></span> <span class="line" id="L22"> (builtin.cpu.arch == .aarch64 <span class="tok-kw">and</span> has_armaes);</span> <span class="line" id="L23"></span> <span class="line" id="L24"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Block = impl.Block;</span> <span class="line" id="L25"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> AesEncryptCtx = impl.AesEncryptCtx;</span> <span class="line" id="L26"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> AesDecryptCtx = impl.AesDecryptCtx;</span> <span class="line" id="L27"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Aes128 = impl.Aes128;</span> <span class="line" id="L28"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Aes256 = impl.Aes256;</span> <span class="line" id="L29"></span> <span class="line" id="L30"><span class="tok-kw">test</span> <span class="tok-str">"ctr"</span> {</span> <span class="line" id="L31"> <span class="tok-comment">// NIST SP 800-38A pp 55-58</span> </span> <span class="line" id="L32"> <span class="tok-kw">const</span> ctr = <span class="tok-builtin">@import</span>(<span class="tok-str">"modes.zig"</span>).ctr;</span> <span class="line" id="L33"></span> <span class="line" id="L34"> <span class="tok-kw">const</span> key = [_]<span class="tok-type">u8</span>{ <span class="tok-number">0x2b</span>, <span class="tok-number">0x7e</span>, <span class="tok-number">0x15</span>, <span class="tok-number">0x16</span>, <span class="tok-number">0x28</span>, <span class="tok-number">0xae</span>, <span class="tok-number">0xd2</span>, <span class="tok-number">0xa6</span>, <span class="tok-number">0xab</span>, <span class="tok-number">0xf7</span>, <span class="tok-number">0x15</span>, <span class="tok-number">0x88</span>, <span class="tok-number">0x09</span>, <span class="tok-number">0xcf</span>, <span class="tok-number">0x4f</span>, <span class="tok-number">0x3c</span> };</span> <span class="line" id="L35"> <span class="tok-kw">const</span> iv = [_]<span class="tok-type">u8</span>{ <span class="tok-number">0xf0</span>, <span class="tok-number">0xf1</span>, <span class="tok-number">0xf2</span>, <span class="tok-number">0xf3</span>, <span class="tok-number">0xf4</span>, <span class="tok-number">0xf5</span>, <span class="tok-number">0xf6</span>, <span class="tok-number">0xf7</span>, <span class="tok-number">0xf8</span>, <span class="tok-number">0xf9</span>, <span class="tok-number">0xfa</span>, <span class="tok-number">0xfb</span>, <span class="tok-number">0xfc</span>, <span class="tok-number">0xfd</span>, <span class="tok-number">0xfe</span>, <span class="tok-number">0xff</span> };</span> <span class="line" id="L36"> <span class="tok-kw">const</span> in = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L37"> <span class="tok-number">0x6b</span>, <span class="tok-number">0xc1</span>, <span class="tok-number">0xbe</span>, <span class="tok-number">0xe2</span>, <span class="tok-number">0x2e</span>, <span class="tok-number">0x40</span>, <span class="tok-number">0x9f</span>, <span class="tok-number">0x96</span>, <span class="tok-number">0xe9</span>, <span class="tok-number">0x3d</span>, <span class="tok-number">0x7e</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0x73</span>, <span class="tok-number">0x93</span>, <span class="tok-number">0x17</span>, <span class="tok-number">0x2a</span>,</span> <span class="line" id="L38"> <span class="tok-number">0xae</span>, <span class="tok-number">0x2d</span>, <span class="tok-number">0x8a</span>, <span class="tok-number">0x57</span>, <span class="tok-number">0x1e</span>, <span class="tok-number">0x03</span>, <span class="tok-number">0xac</span>, <span class="tok-number">0x9c</span>, <span class="tok-number">0x9e</span>, <span class="tok-number">0xb7</span>, <span class="tok-number">0x6f</span>, <span class="tok-number">0xac</span>, <span class="tok-number">0x45</span>, <span class="tok-number">0xaf</span>, <span class="tok-number">0x8e</span>, <span class="tok-number">0x51</span>,</span> <span class="line" id="L39"> <span class="tok-number">0x30</span>, <span class="tok-number">0xc8</span>, <span class="tok-number">0x1c</span>, <span class="tok-number">0x46</span>, <span class="tok-number">0xa3</span>, <span class="tok-number">0x5c</span>, <span class="tok-number">0xe4</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0xe5</span>, <span class="tok-number">0xfb</span>, <span class="tok-number">0xc1</span>, <span class="tok-number">0x19</span>, <span class="tok-number">0x1a</span>, <span class="tok-number">0x0a</span>, <span class="tok-number">0x52</span>, <span class="tok-number">0xef</span>,</span> <span class="line" id="L40"> <span class="tok-number">0xf6</span>, <span class="tok-number">0x9f</span>, <span class="tok-number">0x24</span>, <span class="tok-number">0x45</span>, <span class="tok-number">0xdf</span>, <span class="tok-number">0x4f</span>, <span class="tok-number">0x9b</span>, <span class="tok-number">0x17</span>, <span class="tok-number">0xad</span>, <span class="tok-number">0x2b</span>, <span class="tok-number">0x41</span>, <span class="tok-number">0x7b</span>, <span class="tok-number">0xe6</span>, <span class="tok-number">0x6c</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x10</span>,</span> <span class="line" id="L41"> };</span> <span class="line" id="L42"> <span class="tok-kw">const</span> exp_out = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L43"> <span class="tok-number">0x87</span>, <span class="tok-number">0x4d</span>, <span class="tok-number">0x61</span>, <span class="tok-number">0x91</span>, <span class="tok-number">0xb6</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0xe3</span>, <span class="tok-number">0x26</span>, <span class="tok-number">0x1b</span>, <span class="tok-number">0xef</span>, <span class="tok-number">0x68</span>, <span class="tok-number">0x64</span>, <span class="tok-number">0x99</span>, <span class="tok-number">0x0d</span>, <span class="tok-number">0xb6</span>, <span class="tok-number">0xce</span>,</span> <span class="line" id="L44"> <span class="tok-number">0x98</span>, <span class="tok-number">0x06</span>, <span class="tok-number">0xf6</span>, <span class="tok-number">0x6b</span>, <span class="tok-number">0x79</span>, <span class="tok-number">0x70</span>, <span class="tok-number">0xfd</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0x17</span>, <span class="tok-number">0x18</span>, <span class="tok-number">0x7b</span>, <span class="tok-number">0xb9</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xfd</span>, <span class="tok-number">0xff</span>,</span> <span class="line" id="L45"> <span class="tok-number">0x5a</span>, <span class="tok-number">0xe4</span>, <span class="tok-number">0xdf</span>, <span class="tok-number">0x3e</span>, <span class="tok-number">0xdb</span>, <span class="tok-number">0xd5</span>, <span class="tok-number">0xd3</span>, <span class="tok-number">0x5e</span>, <span class="tok-number">0x5b</span>, <span class="tok-number">0x4f</span>, <span class="tok-number">0x09</span>, <span class="tok-number">0x02</span>, <span class="tok-number">0x0d</span>, <span class="tok-number">0xb0</span>, <span class="tok-number">0x3e</span>, <span class="tok-number">0xab</span>,</span> <span class="line" id="L46"> <span class="tok-number">0x1e</span>, <span class="tok-number">0x03</span>, <span class="tok-number">0x1d</span>, <span class="tok-number">0xda</span>, <span class="tok-number">0x2f</span>, <span class="tok-number">0xbe</span>, <span class="tok-number">0x03</span>, <span class="tok-number">0xd1</span>, <span class="tok-number">0x79</span>, <span class="tok-number">0x21</span>, <span class="tok-number">0x70</span>, <span class="tok-number">0xa0</span>, <span class="tok-number">0xf3</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x9c</span>, <span class="tok-number">0xee</span>,</span> <span class="line" id="L47"> };</span> <span class="line" id="L48"></span> <span class="line" id="L49"> <span class="tok-kw">var</span> out: [exp_out.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L50"> <span class="tok-kw">var</span> ctx = Aes128.initEnc(key);</span> <span class="line" id="L51"> ctr(AesEncryptCtx(Aes128), ctx, out[<span class="tok-number">0</span>..], in[<span class="tok-number">0</span>..], iv, std.builtin.Endian.Big);</span> <span class="line" id="L52"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, exp_out[<span class="tok-number">0</span>..], out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L53">}</span> <span class="line" id="L54"></span> <span class="line" id="L55"><span class="tok-kw">test</span> <span class="tok-str">"encrypt"</span> {</span> <span class="line" id="L56"> <span class="tok-comment">// Appendix B</span> </span> <span class="line" id="L57"> {</span> <span class="line" id="L58"> <span class="tok-kw">const</span> key = [_]<span class="tok-type">u8</span>{ <span class="tok-number">0x2b</span>, <span class="tok-number">0x7e</span>, <span class="tok-number">0x15</span>, <span class="tok-number">0x16</span>, <span class="tok-number">0x28</span>, <span class="tok-number">0xae</span>, <span class="tok-number">0xd2</span>, <span class="tok-number">0xa6</span>, <span class="tok-number">0xab</span>, <span class="tok-number">0xf7</span>, <span class="tok-number">0x15</span>, <span class="tok-number">0x88</span>, <span class="tok-number">0x09</span>, <span class="tok-number">0xcf</span>, <span class="tok-number">0x4f</span>, <span class="tok-number">0x3c</span> };</span> <span class="line" id="L59"> <span class="tok-kw">const</span> in = [_]<span class="tok-type">u8</span>{ <span class="tok-number">0x32</span>, <span class="tok-number">0x43</span>, <span class="tok-number">0xf6</span>, <span class="tok-number">0xa8</span>, <span class="tok-number">0x88</span>, <span class="tok-number">0x5a</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x8d</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x98</span>, <span class="tok-number">0xa2</span>, <span class="tok-number">0xe0</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x07</span>, <span class="tok-number">0x34</span> };</span> <span class="line" id="L60"> <span class="tok-kw">const</span> exp_out = [_]<span class="tok-type">u8</span>{ <span class="tok-number">0x39</span>, <span class="tok-number">0x25</span>, <span class="tok-number">0x84</span>, <span class="tok-number">0x1d</span>, <span class="tok-number">0x02</span>, <span class="tok-number">0xdc</span>, <span class="tok-number">0x09</span>, <span class="tok-number">0xfb</span>, <span class="tok-number">0xdc</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0x85</span>, <span class="tok-number">0x97</span>, <span class="tok-number">0x19</span>, <span class="tok-number">0x6a</span>, <span class="tok-number">0x0b</span>, <span class="tok-number">0x32</span> };</span> <span class="line" id="L61"></span> <span class="line" id="L62"> <span class="tok-kw">var</span> out: [exp_out.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L63"> <span class="tok-kw">var</span> ctx = Aes128.initEnc(key);</span> <span class="line" id="L64"> ctx.encrypt(out[<span class="tok-number">0</span>..], in[<span class="tok-number">0</span>..]);</span> <span class="line" id="L65"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, exp_out[<span class="tok-number">0</span>..], out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L66"> }</span> <span class="line" id="L67"></span> <span class="line" id="L68"> <span class="tok-comment">// Appendix C.3</span> </span> <span class="line" id="L69"> {</span> <span class="line" id="L70"> <span class="tok-kw">const</span> key = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L71"> <span class="tok-number">0x00</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x02</span>, <span class="tok-number">0x03</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x05</span>, <span class="tok-number">0x06</span>, <span class="tok-number">0x07</span>, <span class="tok-number">0x08</span>, <span class="tok-number">0x09</span>, <span class="tok-number">0x0a</span>, <span class="tok-number">0x0b</span>, <span class="tok-number">0x0c</span>, <span class="tok-number">0x0d</span>, <span class="tok-number">0x0e</span>, <span class="tok-number">0x0f</span>,</span> <span class="line" id="L72"> <span class="tok-number">0x10</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0x12</span>, <span class="tok-number">0x13</span>, <span class="tok-number">0x14</span>, <span class="tok-number">0x15</span>, <span class="tok-number">0x16</span>, <span class="tok-number">0x17</span>, <span class="tok-number">0x18</span>, <span class="tok-number">0x19</span>, <span class="tok-number">0x1a</span>, <span class="tok-number">0x1b</span>, <span class="tok-number">0x1c</span>, <span class="tok-number">0x1d</span>, <span class="tok-number">0x1e</span>, <span class="tok-number">0x1f</span>,</span> <span class="line" id="L73"> };</span> <span class="line" id="L74"> <span class="tok-kw">const</span> in = [_]<span class="tok-type">u8</span>{ <span class="tok-number">0x00</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0x22</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x44</span>, <span class="tok-number">0x55</span>, <span class="tok-number">0x66</span>, <span class="tok-number">0x77</span>, <span class="tok-number">0x88</span>, <span class="tok-number">0x99</span>, <span class="tok-number">0xaa</span>, <span class="tok-number">0xbb</span>, <span class="tok-number">0xcc</span>, <span class="tok-number">0xdd</span>, <span class="tok-number">0xee</span>, <span class="tok-number">0xff</span> };</span> <span class="line" id="L75"> <span class="tok-kw">const</span> exp_out = [_]<span class="tok-type">u8</span>{ <span class="tok-number">0x8e</span>, <span class="tok-number">0xa2</span>, <span class="tok-number">0xb7</span>, <span class="tok-number">0xca</span>, <span class="tok-number">0x51</span>, <span class="tok-number">0x67</span>, <span class="tok-number">0x45</span>, <span class="tok-number">0xbf</span>, <span class="tok-number">0xea</span>, <span class="tok-number">0xfc</span>, <span class="tok-number">0x49</span>, <span class="tok-number">0x90</span>, <span class="tok-number">0x4b</span>, <span class="tok-number">0x49</span>, <span class="tok-number">0x60</span>, <span class="tok-number">0x89</span> };</span> <span class="line" id="L76"></span> <span class="line" id="L77"> <span class="tok-kw">var</span> out: [exp_out.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L78"> <span class="tok-kw">var</span> ctx = Aes256.initEnc(key);</span> <span class="line" id="L79"> ctx.encrypt(out[<span class="tok-number">0</span>..], in[<span class="tok-number">0</span>..]);</span> <span class="line" id="L80"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, exp_out[<span class="tok-number">0</span>..], out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L81"> }</span> <span class="line" id="L82">}</span> <span class="line" id="L83"></span> <span class="line" id="L84"><span class="tok-kw">test</span> <span class="tok-str">"decrypt"</span> {</span> <span class="line" id="L85"> <span class="tok-comment">// Appendix B</span> </span> <span class="line" id="L86"> {</span> <span class="line" id="L87"> <span class="tok-kw">const</span> key = [_]<span class="tok-type">u8</span>{ <span class="tok-number">0x2b</span>, <span class="tok-number">0x7e</span>, <span class="tok-number">0x15</span>, <span class="tok-number">0x16</span>, <span class="tok-number">0x28</span>, <span class="tok-number">0xae</span>, <span class="tok-number">0xd2</span>, <span class="tok-number">0xa6</span>, <span class="tok-number">0xab</span>, <span class="tok-number">0xf7</span>, <span class="tok-number">0x15</span>, <span class="tok-number">0x88</span>, <span class="tok-number">0x09</span>, <span class="tok-number">0xcf</span>, <span class="tok-number">0x4f</span>, <span class="tok-number">0x3c</span> };</span> <span class="line" id="L88"> <span class="tok-kw">const</span> in = [_]<span class="tok-type">u8</span>{ <span class="tok-number">0x39</span>, <span class="tok-number">0x25</span>, <span class="tok-number">0x84</span>, <span class="tok-number">0x1d</span>, <span class="tok-number">0x02</span>, <span class="tok-number">0xdc</span>, <span class="tok-number">0x09</span>, <span class="tok-number">0xfb</span>, <span class="tok-number">0xdc</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0x85</span>, <span class="tok-number">0x97</span>, <span class="tok-number">0x19</span>, <span class="tok-number">0x6a</span>, <span class="tok-number">0x0b</span>, <span class="tok-number">0x32</span> };</span> <span class="line" id="L89"> <span class="tok-kw">const</span> exp_out = [_]<span class="tok-type">u8</span>{ <span class="tok-number">0x32</span>, <span class="tok-number">0x43</span>, <span class="tok-number">0xf6</span>, <span class="tok-number">0xa8</span>, <span class="tok-number">0x88</span>, <span class="tok-number">0x5a</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x8d</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x98</span>, <span class="tok-number">0xa2</span>, <span class="tok-number">0xe0</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x07</span>, <span class="tok-number">0x34</span> };</span> <span class="line" id="L90"></span> <span class="line" id="L91"> <span class="tok-kw">var</span> out: [exp_out.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L92"> <span class="tok-kw">var</span> ctx = Aes128.initDec(key);</span> <span class="line" id="L93"> ctx.decrypt(out[<span class="tok-number">0</span>..], in[<span class="tok-number">0</span>..]);</span> <span class="line" id="L94"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, exp_out[<span class="tok-number">0</span>..], out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L95"> }</span> <span class="line" id="L96"></span> <span class="line" id="L97"> <span class="tok-comment">// Appendix C.3</span> </span> <span class="line" id="L98"> {</span> <span class="line" id="L99"> <span class="tok-kw">const</span> key = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L100"> <span class="tok-number">0x00</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x02</span>, <span class="tok-number">0x03</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x05</span>, <span class="tok-number">0x06</span>, <span class="tok-number">0x07</span>, <span class="tok-number">0x08</span>, <span class="tok-number">0x09</span>, <span class="tok-number">0x0a</span>, <span class="tok-number">0x0b</span>, <span class="tok-number">0x0c</span>, <span class="tok-number">0x0d</span>, <span class="tok-number">0x0e</span>, <span class="tok-number">0x0f</span>,</span> <span class="line" id="L101"> <span class="tok-number">0x10</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0x12</span>, <span class="tok-number">0x13</span>, <span class="tok-number">0x14</span>, <span class="tok-number">0x15</span>, <span class="tok-number">0x16</span>, <span class="tok-number">0x17</span>, <span class="tok-number">0x18</span>, <span class="tok-number">0x19</span>, <span class="tok-number">0x1a</span>, <span class="tok-number">0x1b</span>, <span class="tok-number">0x1c</span>, <span class="tok-number">0x1d</span>, <span class="tok-number">0x1e</span>, <span class="tok-number">0x1f</span>,</span> <span class="line" id="L102"> };</span> <span class="line" id="L103"> <span class="tok-kw">const</span> in = [_]<span class="tok-type">u8</span>{ <span class="tok-number">0x8e</span>, <span class="tok-number">0xa2</span>, <span class="tok-number">0xb7</span>, <span class="tok-number">0xca</span>, <span class="tok-number">0x51</span>, <span class="tok-number">0x67</span>, <span class="tok-number">0x45</span>, <span class="tok-number">0xbf</span>, <span class="tok-number">0xea</span>, <span class="tok-number">0xfc</span>, <span class="tok-number">0x49</span>, <span class="tok-number">0x90</span>, <span class="tok-number">0x4b</span>, <span class="tok-number">0x49</span>, <span class="tok-number">0x60</span>, <span class="tok-number">0x89</span> };</span> <span class="line" id="L104"> <span class="tok-kw">const</span> exp_out = [_]<span class="tok-type">u8</span>{ <span class="tok-number">0x00</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0x22</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x44</span>, <span class="tok-number">0x55</span>, <span class="tok-number">0x66</span>, <span class="tok-number">0x77</span>, <span class="tok-number">0x88</span>, <span class="tok-number">0x99</span>, <span class="tok-number">0xaa</span>, <span class="tok-number">0xbb</span>, <span class="tok-number">0xcc</span>, <span class="tok-number">0xdd</span>, <span class="tok-number">0xee</span>, <span class="tok-number">0xff</span> };</span> <span class="line" id="L105"></span> <span class="line" id="L106"> <span class="tok-kw">var</span> out: [exp_out.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L107"> <span class="tok-kw">var</span> ctx = Aes256.initDec(key);</span> <span class="line" id="L108"> ctx.decrypt(out[<span class="tok-number">0</span>..], in[<span class="tok-number">0</span>..]);</span> <span class="line" id="L109"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, exp_out[<span class="tok-number">0</span>..], out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L110"> }</span> <span class="line" id="L111">}</span> <span class="line" id="L112"></span> <span class="line" id="L113"><span class="tok-kw">test</span> <span class="tok-str">"expand 128-bit key"</span> {</span> <span class="line" id="L114"> <span class="tok-kw">const</span> key = [_]<span class="tok-type">u8</span>{ <span class="tok-number">0x2b</span>, <span class="tok-number">0x7e</span>, <span class="tok-number">0x15</span>, <span class="tok-number">0x16</span>, <span class="tok-number">0x28</span>, <span class="tok-number">0xae</span>, <span class="tok-number">0xd2</span>, <span class="tok-number">0xa6</span>, <span class="tok-number">0xab</span>, <span class="tok-number">0xf7</span>, <span class="tok-number">0x15</span>, <span class="tok-number">0x88</span>, <span class="tok-number">0x09</span>, <span class="tok-number">0xcf</span>, <span class="tok-number">0x4f</span>, <span class="tok-number">0x3c</span> };</span> <span class="line" id="L115"> <span class="tok-kw">const</span> exp_enc = [_]<span class="tok-kw">const</span> [<span class="tok-number">32</span>:<span class="tok-number">0</span>]<span class="tok-type">u8</span>{</span> <span class="line" id="L116"> <span class="tok-str">"2b7e151628aed2a6abf7158809cf4f3c"</span>, <span class="tok-str">"a0fafe1788542cb123a339392a6c7605"</span>, <span class="tok-str">"f2c295f27a96b9435935807a7359f67f"</span>, <span class="tok-str">"3d80477d4716fe3e1e237e446d7a883b"</span>, <span class="tok-str">"ef44a541a8525b7fb671253bdb0bad00"</span>, <span class="tok-str">"d4d1c6f87c839d87caf2b8bc11f915bc"</span>, <span class="tok-str">"6d88a37a110b3efddbf98641ca0093fd"</span>, <span class="tok-str">"4e54f70e5f5fc9f384a64fb24ea6dc4f"</span>, <span class="tok-str">"ead27321b58dbad2312bf5607f8d292f"</span>, <span class="tok-str">"ac7766f319fadc2128d12941575c006e"</span>, <span class="tok-str">"d014f9a8c9ee2589e13f0cc8b6630ca6"</span>,</span> <span class="line" id="L117"> };</span> <span class="line" id="L118"> <span class="tok-kw">const</span> exp_dec = [_]<span class="tok-kw">const</span> [<span class="tok-number">32</span>:<span class="tok-number">0</span>]<span class="tok-type">u8</span>{</span> <span class="line" id="L119"> <span class="tok-str">"d014f9a8c9ee2589e13f0cc8b6630ca6"</span>, <span class="tok-str">"0c7b5a631319eafeb0398890664cfbb4"</span>, <span class="tok-str">"df7d925a1f62b09da320626ed6757324"</span>, <span class="tok-str">"12c07647c01f22c7bc42d2f37555114a"</span>, <span class="tok-str">"6efcd876d2df54807c5df034c917c3b9"</span>, <span class="tok-str">"6ea30afcbc238cf6ae82a4b4b54a338d"</span>, <span class="tok-str">"90884413d280860a12a128421bc89739"</span>, <span class="tok-str">"7c1f13f74208c219c021ae480969bf7b"</span>, <span class="tok-str">"cc7505eb3e17d1ee82296c51c9481133"</span>, <span class="tok-str">"2b3708a7f262d405bc3ebdbf4b617d62"</span>, <span class="tok-str">"2b7e151628aed2a6abf7158809cf4f3c"</span>,</span> <span class="line" id="L120"> };</span> <span class="line" id="L121"> <span class="tok-kw">const</span> enc = Aes128.initEnc(key);</span> <span class="line" id="L122"> <span class="tok-kw">const</span> dec = Aes128.initDec(key);</span> <span class="line" id="L123"> <span class="tok-kw">var</span> exp: [<span class="tok-number">16</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L124"></span> <span class="line" id="L125"> <span class="tok-kw">for</span> (enc.key_schedule.round_keys, <span class="tok-number">0</span>..) \|round_key, i\| {</span> <span class="line" id="L126"> _ = <span class="tok-kw">try</span> std.fmt.hexToBytes(&exp, exp_enc[i]);</span> <span class="line" id="L127"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, &exp, &round_key.toBytes());</span> <span class="line" id="L128"> }</span> <span class="line" id="L129"> <span class="tok-kw">for</span> (dec.key_schedule.round_keys, <span class="tok-number">0</span>..) \|round_key, i\| {</span> <span class="line" id="L130"> _ = <span class="tok-kw">try</span> std.fmt.hexToBytes(&exp, exp_dec[i]);</span> <span class="line" id="L131"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, &exp, &round_key.toBytes());</span> <span class="line" id="L132"> }</span> <span class="line" id="L133">}</span> <span class="line" id="L134"></span> <span class="line" id="L135"><span class="tok-kw">test</span> <span class="tok-str">"expand 256-bit key"</span> {</span> <span class="line" id="L136"> <span class="tok-kw">const</span> key = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L137"> <span class="tok-number">0x60</span>, <span class="tok-number">0x3d</span>, <span class="tok-number">0xeb</span>, <span class="tok-number">0x10</span>,</span> <span class="line" id="L138"> <span class="tok-number">0x15</span>, <span class="tok-number">0xca</span>, <span class="tok-number">0x71</span>, <span class="tok-number">0xbe</span>,</span> <span class="line" id="L139"> <span class="tok-number">0x2b</span>, <span class="tok-number">0x73</span>, <span class="tok-number">0xae</span>, <span class="tok-number">0xf0</span>,</span> <span class="line" id="L140"> <span class="tok-number">0x85</span>, <span class="tok-number">0x7d</span>, <span class="tok-number">0x77</span>, <span class="tok-number">0x81</span>,</span> <span class="line" id="L141"> <span class="tok-number">0x1f</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x2c</span>, <span class="tok-number">0x07</span>,</span> <span class="line" id="L142"> <span class="tok-number">0x3b</span>, <span class="tok-number">0x61</span>, <span class="tok-number">0x08</span>, <span class="tok-number">0xd7</span>,</span> <span class="line" id="L143"> <span class="tok-number">0x2d</span>, <span class="tok-number">0x98</span>, <span class="tok-number">0x10</span>, <span class="tok-number">0xa3</span>,</span> <span class="line" id="L144"> <span class="tok-number">0x09</span>, <span class="tok-number">0x14</span>, <span class="tok-number">0xdf</span>, <span class="tok-number">0xf4</span>,</span> <span class="line" id="L145"> };</span> <span class="line" id="L146"> <span class="tok-kw">const</span> exp_enc = [_]<span class="tok-kw">const</span> [<span class="tok-number">32</span>:<span class="tok-number">0</span>]<span class="tok-type">u8</span>{</span> <span class="line" id="L147"> <span class="tok-str">"603deb1015ca71be2b73aef0857d7781"</span>, <span class="tok-str">"1f352c073b6108d72d9810a30914dff4"</span>, <span class="tok-str">"9ba354118e6925afa51a8b5f2067fcde"</span>,</span> <span class="line" id="L148"> <span class="tok-str">"a8b09c1a93d194cdbe49846eb75d5b9a"</span>, <span class="tok-str">"d59aecb85bf3c917fee94248de8ebe96"</span>, <span class="tok-str">"b5a9328a2678a647983122292f6c79b3"</span>,</span> <span class="line" id="L149"> <span class="tok-str">"812c81addadf48ba24360af2fab8b464"</span>, <span class="tok-str">"98c5bfc9bebd198e268c3ba709e04214"</span>, <span class="tok-str">"68007bacb2df331696e939e46c518d80"</span>,</span> <span class="line" id="L150"> <span class="tok-str">"c814e20476a9fb8a5025c02d59c58239"</span>, <span class="tok-str">"de1369676ccc5a71fa2563959674ee15"</span>, <span class="tok-str">"5886ca5d2e2f31d77e0af1fa27cf73c3"</span>,</span> <span class="line" id="L151"> <span class="tok-str">"749c47ab18501ddae2757e4f7401905a"</span>, <span class="tok-str">"cafaaae3e4d59b349adf6acebd10190d"</span>, <span class="tok-str">"fe4890d1e6188d0b046df344706c631e"</span>,</span> <span class="line" id="L152"> };</span> <span class="line" id="L153"> <span class="tok-kw">const</span> exp_dec = [_]<span class="tok-kw">const</span> [<span class="tok-number">32</span>:<span class="tok-number">0</span>]<span class="tok-type">u8</span>{</span> <span class="line" id="L154"> <span class="tok-str">"fe4890d1e6188d0b046df344706c631e"</span>, <span class="tok-str">"ada23f4963e23b2455427c8a5c709104"</span>, <span class="tok-str">"57c96cf6074f07c0706abb07137f9241"</span>,</span> <span class="line" id="L155"> <span class="tok-str">"b668b621ce40046d36a047ae0932ed8e"</span>, <span class="tok-str">"34ad1e4450866b367725bcc763152946"</span>, <span class="tok-str">"32526c367828b24cf8e043c33f92aa20"</span>,</span> <span class="line" id="L156"> <span class="tok-str">"c440b289642b757227a3d7f114309581"</span>, <span class="tok-str">"d669a7334a7ade7a80c8f18fc772e9e3"</span>, <span class="tok-str">"25ba3c22a06bc7fb4388a28333934270"</span>,</span> <span class="line" id="L157"> <span class="tok-str">"54fb808b9c137949cab22ff547ba186c"</span>, <span class="tok-str">"6c3d632985d1fbd9e3e36578701be0f3"</span>, <span class="tok-str">"4a7459f9c8e8f9c256a156bc8d083799"</span>,</span> <span class="line" id="L158"> <span class="tok-str">"42107758e9ec98f066329ea193f8858b"</span>, <span class="tok-str">"8ec6bff6829ca03b9e49af7edba96125"</span>, <span class="tok-str">"603deb1015ca71be2b73aef0857d7781"</span>,</span> <span class="line" id="L159"> };</span> <span class="line" id="L160"> <span class="tok-kw">const</span> enc = Aes256.initEnc(key);</span> <span class="line" id="L161"> <span class="tok-kw">const</span> dec = Aes256.initDec(key);</span> <span class="line" id="L162"> <span class="tok-kw">var</span> exp: [<span class="tok-number">16</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L163"></span> <span class="line" id="L164"> <span class="tok-kw">for</span> (enc.key_schedule.round_keys, <span class="tok-number">0</span>..) \|round_key, i\| {</span> <span class="line" id="L165"> _ = <span class="tok-kw">try</span> std.fmt.hexToBytes(&exp, exp_enc[i]);</span> <span class="line" id="L166"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, &exp, &round_key.toBytes());</span> <span class="line" id="L167"> }</span> <span class="line" id="L168"> <span class="tok-kw">for</span> (dec.key_schedule.round_keys, <span class="tok-number">0</span>..) \|round_key, i\| {</span> <span class="line" id="L169"> _ = <span class="tok-kw">try</span> std.fmt.hexToBytes(&exp, exp_dec[i]);</span> <span class="line" id="L170"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, &exp, &round_key.toBytes());</span> <span class="line" id="L171"> }</span> <span class="line" id="L172">}</span> <span class="line" id="L173"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/crypto/Certificate.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/Certificate.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1">buffer: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L2">index: <span class="tok-type">u32</span>,</span> <span class="line" id="L3"></span> <span class="line" id="L4"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Bundle = <span class="tok-builtin">@import</span>(<span class="tok-str">"Certificate/Bundle.zig"</span>);</span> <span class="line" id="L5"></span> <span class="line" id="L6"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Version = <span class="tok-kw">enum</span> { v1, v2, v3 };</span> <span class="line" id="L7"></span> <span class="line" id="L8"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Algorithm = <span class="tok-kw">enum</span> {</span> <span class="line" id="L9"> sha1WithRSAEncryption,</span> <span class="line" id="L10"> sha224WithRSAEncryption,</span> <span class="line" id="L11"> sha256WithRSAEncryption,</span> <span class="line" id="L12"> sha384WithRSAEncryption,</span> <span class="line" id="L13"> sha512WithRSAEncryption,</span> <span class="line" id="L14"> ecdsa_with_SHA224,</span> <span class="line" id="L15"> ecdsa_with_SHA256,</span> <span class="line" id="L16"> ecdsa_with_SHA384,</span> <span class="line" id="L17"> ecdsa_with_SHA512,</span> <span class="line" id="L18"> md2WithRSAEncryption,</span> <span class="line" id="L19"> md5WithRSAEncryption,</span> <span class="line" id="L20"></span> <span class="line" id="L21"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> map = std.ComptimeStringMap(Algorithm, .{</span> <span class="line" id="L22"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x2A</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0x48</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0xF7</span>, <span class="tok-number">0x0D</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x05</span> }, .sha1WithRSAEncryption },</span> <span class="line" id="L23"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x2A</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0x48</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0xF7</span>, <span class="tok-number">0x0D</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x0B</span> }, .sha256WithRSAEncryption },</span> <span class="line" id="L24"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x2A</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0x48</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0xF7</span>, <span class="tok-number">0x0D</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x0C</span> }, .sha384WithRSAEncryption },</span> <span class="line" id="L25"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x2A</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0x48</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0xF7</span>, <span class="tok-number">0x0D</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x0D</span> }, .sha512WithRSAEncryption },</span> <span class="line" id="L26"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x2A</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0x48</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0xF7</span>, <span class="tok-number">0x0D</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x0E</span> }, .sha224WithRSAEncryption },</span> <span class="line" id="L27"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x2A</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0x48</span>, <span class="tok-number">0xCE</span>, <span class="tok-number">0x3D</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x03</span>, <span class="tok-number">0x01</span> }, .ecdsa_with_SHA224 },</span> <span class="line" id="L28"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x2A</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0x48</span>, <span class="tok-number">0xCE</span>, <span class="tok-number">0x3D</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x03</span>, <span class="tok-number">0x02</span> }, .ecdsa_with_SHA256 },</span> <span class="line" id="L29"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x2A</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0x48</span>, <span class="tok-number">0xCE</span>, <span class="tok-number">0x3D</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x03</span>, <span class="tok-number">0x03</span> }, .ecdsa_with_SHA384 },</span> <span class="line" id="L30"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x2A</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0x48</span>, <span class="tok-number">0xCE</span>, <span class="tok-number">0x3D</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x03</span>, <span class="tok-number">0x04</span> }, .ecdsa_with_SHA512 },</span> <span class="line" id="L31"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x2A</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0x48</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0xF7</span>, <span class="tok-number">0x0D</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x02</span> }, .md2WithRSAEncryption },</span> <span class="line" id="L32"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x2A</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0x48</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0xF7</span>, <span class="tok-number">0x0D</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x04</span> }, .md5WithRSAEncryption },</span> <span class="line" id="L33"> });</span> <span class="line" id="L34"></span> <span class="line" id="L35"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">Hash</span>(<span class="tok-kw">comptime</span> algorithm: Algorithm) <span class="tok-type">type</span> {</span> <span class="line" id="L36"> <span class="tok-kw">return</span> <span class="tok-kw">switch</span> (algorithm) {</span> <span class="line" id="L37"> .sha1WithRSAEncryption => crypto.hash.Sha1,</span> <span class="line" id="L38"> .ecdsa_with_SHA224, .sha224WithRSAEncryption => crypto.hash.sha2.Sha224,</span> <span class="line" id="L39"> .ecdsa_with_SHA256, .sha256WithRSAEncryption => crypto.hash.sha2.Sha256,</span> <span class="line" id="L40"> .ecdsa_with_SHA384, .sha384WithRSAEncryption => crypto.hash.sha2.Sha384,</span> <span class="line" id="L41"> .ecdsa_with_SHA512, .sha512WithRSAEncryption => crypto.hash.sha2.Sha512,</span> <span class="line" id="L42"> .md2WithRSAEncryption => <span class="tok-builtin">@compileError</span>(<span class="tok-str">"unimplemented"</span>),</span> <span class="line" id="L43"> .md5WithRSAEncryption => crypto.hash.Md5,</span> <span class="line" id="L44"> };</span> <span class="line" id="L45"> }</span> <span class="line" id="L46">};</span> <span class="line" id="L47"></span> <span class="line" id="L48"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> AlgorithmCategory = <span class="tok-kw">enum</span> {</span> <span class="line" id="L49"> rsaEncryption,</span> <span class="line" id="L50"> X9_62_id_ecPublicKey,</span> <span class="line" id="L51"></span> <span class="line" id="L52"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> map = std.ComptimeStringMap(AlgorithmCategory, .{</span> <span class="line" id="L53"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x2A</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0x48</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0xF7</span>, <span class="tok-number">0x0D</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x01</span> }, .rsaEncryption },</span> <span class="line" id="L54"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x2A</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0x48</span>, <span class="tok-number">0xCE</span>, <span class="tok-number">0x3D</span>, <span class="tok-number">0x02</span>, <span class="tok-number">0x01</span> }, .X9_62_id_ecPublicKey },</span> <span class="line" id="L55"> });</span> <span class="line" id="L56">};</span> <span class="line" id="L57"></span> <span class="line" id="L58"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Attribute = <span class="tok-kw">enum</span> {</span> <span class="line" id="L59"> commonName,</span> <span class="line" id="L60"> serialNumber,</span> <span class="line" id="L61"> countryName,</span> <span class="line" id="L62"> localityName,</span> <span class="line" id="L63"> stateOrProvinceName,</span> <span class="line" id="L64"> streetAddress,</span> <span class="line" id="L65"> organizationName,</span> <span class="line" id="L66"> organizationalUnitName,</span> <span class="line" id="L67"> postalCode,</span> <span class="line" id="L68"> organizationIdentifier,</span> <span class="line" id="L69"> pkcs9_emailAddress,</span> <span class="line" id="L70"> domainComponent,</span> <span class="line" id="L71"></span> <span class="line" id="L72"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> map = std.ComptimeStringMap(Attribute, .{</span> <span class="line" id="L73"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x55</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x03</span> }, .commonName },</span> <span class="line" id="L74"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x55</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x05</span> }, .serialNumber },</span> <span class="line" id="L75"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x55</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x06</span> }, .countryName },</span> <span class="line" id="L76"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x55</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x07</span> }, .localityName },</span> <span class="line" id="L77"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x55</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x08</span> }, .stateOrProvinceName },</span> <span class="line" id="L78"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x55</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x09</span> }, .streetAddress },</span> <span class="line" id="L79"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x55</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x0A</span> }, .organizationName },</span> <span class="line" id="L80"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x55</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x0B</span> }, .organizationalUnitName },</span> <span class="line" id="L81"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x55</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x11</span> }, .postalCode },</span> <span class="line" id="L82"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x55</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x61</span> }, .organizationIdentifier },</span> <span class="line" id="L83"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x2A</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0x48</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0xF7</span>, <span class="tok-number">0x0D</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x09</span>, <span class="tok-number">0x01</span> }, .pkcs9_emailAddress },</span> <span class="line" id="L84"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x09</span>, <span class="tok-number">0x92</span>, <span class="tok-number">0x26</span>, <span class="tok-number">0x89</span>, <span class="tok-number">0x93</span>, <span class="tok-number">0xF2</span>, <span class="tok-number">0x2C</span>, <span class="tok-number">0x64</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x19</span> }, .domainComponent },</span> <span class="line" id="L85"> });</span> <span class="line" id="L86">};</span> <span class="line" id="L87"></span> <span class="line" id="L88"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> NamedCurve = <span class="tok-kw">enum</span> {</span> <span class="line" id="L89"> secp384r1,</span> <span class="line" id="L90"> secp521r1,</span> <span class="line" id="L91"> X9_62_prime256v1,</span> <span class="line" id="L92"></span> <span class="line" id="L93"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> map = std.ComptimeStringMap(NamedCurve, .{</span> <span class="line" id="L94"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x2B</span>, <span class="tok-number">0x81</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x22</span> }, .secp384r1 },</span> <span class="line" id="L95"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x2B</span>, <span class="tok-number">0x81</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x23</span> }, .secp521r1 },</span> <span class="line" id="L96"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x2A</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0x48</span>, <span class="tok-number">0xCE</span>, <span class="tok-number">0x3D</span>, <span class="tok-number">0x03</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x07</span> }, .X9_62_prime256v1 },</span> <span class="line" id="L97"> });</span> <span class="line" id="L98"></span> <span class="line" id="L99"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">Curve</span>(<span class="tok-kw">comptime</span> curve: NamedCurve) <span class="tok-type">type</span> {</span> <span class="line" id="L100"> <span class="tok-kw">return</span> <span class="tok-kw">switch</span> (curve) {</span> <span class="line" id="L101"> .X9_62_prime256v1 => crypto.ecc.P256,</span> <span class="line" id="L102"> .secp384r1 => crypto.ecc.P384,</span> <span class="line" id="L103"> .secp521r1 => <span class="tok-builtin">@compileError</span>(<span class="tok-str">"unimplemented"</span>),</span> <span class="line" id="L104"> };</span> <span class="line" id="L105"> }</span> <span class="line" id="L106">};</span> <span class="line" id="L107"></span> <span class="line" id="L108"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> ExtensionId = <span class="tok-kw">enum</span> {</span> <span class="line" id="L109"> subject_key_identifier,</span> <span class="line" id="L110"> key_usage,</span> <span class="line" id="L111"> private_key_usage_period,</span> <span class="line" id="L112"> subject_alt_name,</span> <span class="line" id="L113"> issuer_alt_name,</span> <span class="line" id="L114"> basic_constraints,</span> <span class="line" id="L115"> crl_number,</span> <span class="line" id="L116"> certificate_policies,</span> <span class="line" id="L117"> authority_key_identifier,</span> <span class="line" id="L118"> msCertsrvCAVersion,</span> <span class="line" id="L119"> commonName,</span> <span class="line" id="L120"> ext_key_usage,</span> <span class="line" id="L121"> crl_distribution_points,</span> <span class="line" id="L122"> info_access,</span> <span class="line" id="L123"> entrustVersInfo,</span> <span class="line" id="L124"> enroll_certtype,</span> <span class="line" id="L125"> pe_logotype,</span> <span class="line" id="L126"> netscape_cert_type,</span> <span class="line" id="L127"> netscape_comment,</span> <span class="line" id="L128"></span> <span class="line" id="L129"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> map = std.ComptimeStringMap(ExtensionId, .{</span> <span class="line" id="L130"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x55</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x03</span> }, .commonName },</span> <span class="line" id="L131"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x55</span>, <span class="tok-number">0x1D</span>, <span class="tok-number">0x01</span> }, .authority_key_identifier },</span> <span class="line" id="L132"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x55</span>, <span class="tok-number">0x1D</span>, <span class="tok-number">0x07</span> }, .subject_alt_name },</span> <span class="line" id="L133"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x55</span>, <span class="tok-number">0x1D</span>, <span class="tok-number">0x0E</span> }, .subject_key_identifier },</span> <span class="line" id="L134"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x55</span>, <span class="tok-number">0x1D</span>, <span class="tok-number">0x0F</span> }, .key_usage },</span> <span class="line" id="L135"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x55</span>, <span class="tok-number">0x1D</span>, <span class="tok-number">0x0A</span> }, .basic_constraints },</span> <span class="line" id="L136"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x55</span>, <span class="tok-number">0x1D</span>, <span class="tok-number">0x10</span> }, .private_key_usage_period },</span> <span class="line" id="L137"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x55</span>, <span class="tok-number">0x1D</span>, <span class="tok-number">0x11</span> }, .subject_alt_name },</span> <span class="line" id="L138"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x55</span>, <span class="tok-number">0x1D</span>, <span class="tok-number">0x12</span> }, .issuer_alt_name },</span> <span class="line" id="L139"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x55</span>, <span class="tok-number">0x1D</span>, <span class="tok-number">0x13</span> }, .basic_constraints },</span> <span class="line" id="L140"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x55</span>, <span class="tok-number">0x1D</span>, <span class="tok-number">0x14</span> }, .crl_number },</span> <span class="line" id="L141"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x55</span>, <span class="tok-number">0x1D</span>, <span class="tok-number">0x1F</span> }, .crl_distribution_points },</span> <span class="line" id="L142"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x55</span>, <span class="tok-number">0x1D</span>, <span class="tok-number">0x20</span> }, .certificate_policies },</span> <span class="line" id="L143"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x55</span>, <span class="tok-number">0x1D</span>, <span class="tok-number">0x23</span> }, .authority_key_identifier },</span> <span class="line" id="L144"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x55</span>, <span class="tok-number">0x1D</span>, <span class="tok-number">0x25</span> }, .ext_key_usage },</span> <span class="line" id="L145"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x2B</span>, <span class="tok-number">0x06</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x82</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x15</span>, <span class="tok-number">0x01</span> }, .msCertsrvCAVersion },</span> <span class="line" id="L146"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x2B</span>, <span class="tok-number">0x06</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x05</span>, <span class="tok-number">0x05</span>, <span class="tok-number">0x07</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x01</span> }, .info_access },</span> <span class="line" id="L147"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x2A</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0x48</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0xF6</span>, <span class="tok-number">0x7D</span>, <span class="tok-number">0x07</span>, <span class="tok-number">0x41</span>, <span class="tok-number">0x00</span> }, .entrustVersInfo },</span> <span class="line" id="L148"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x2b</span>, <span class="tok-number">0x06</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x82</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x14</span>, <span class="tok-number">0x02</span> }, .enroll_certtype },</span> <span class="line" id="L149"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x2b</span>, <span class="tok-number">0x06</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x05</span>, <span class="tok-number">0x05</span>, <span class="tok-number">0x07</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x0c</span> }, .pe_logotype },</span> <span class="line" id="L150"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x60</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0x48</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0xf8</span>, <span class="tok-number">0x42</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x01</span> }, .netscape_cert_type },</span> <span class="line" id="L151"> .{ &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x60</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0x48</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0xf8</span>, <span class="tok-number">0x42</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x0d</span> }, .netscape_comment },</span> <span class="line" id="L152"> });</span> <span class="line" id="L153">};</span> <span class="line" id="L154"></span> <span class="line" id="L155"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> GeneralNameTag = <span class="tok-kw">enum</span>(<span class="tok-type">u5</span>) {</span> <span class="line" id="L156"> otherName = <span class="tok-number">0</span>,</span> <span class="line" id="L157"> rfc822Name = <span class="tok-number">1</span>,</span> <span class="line" id="L158"> dNSName = <span class="tok-number">2</span>,</span> <span class="line" id="L159"> x400Address = <span class="tok-number">3</span>,</span> <span class="line" id="L160"> directoryName = <span class="tok-number">4</span>,</span> <span class="line" id="L161"> ediPartyName = <span class="tok-number">5</span>,</span> <span class="line" id="L162"> uniformResourceIdentifier = <span class="tok-number">6</span>,</span> <span class="line" id="L163"> iPAddress = <span class="tok-number">7</span>,</span> <span class="line" id="L164"> registeredID = <span class="tok-number">8</span>,</span> <span class="line" id="L165"> _,</span> <span class="line" id="L166">};</span> <span class="line" id="L167"></span> <span class="line" id="L168"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Parsed = <span class="tok-kw">struct</span> {</span> <span class="line" id="L169"> certificate: Certificate,</span> <span class="line" id="L170"> issuer_slice: Slice,</span> <span class="line" id="L171"> subject_slice: Slice,</span> <span class="line" id="L172"> common_name_slice: Slice,</span> <span class="line" id="L173"> signature_slice: Slice,</span> <span class="line" id="L174"> signature_algorithm: Algorithm,</span> <span class="line" id="L175"> pub_key_algo: PubKeyAlgo,</span> <span class="line" id="L176"> pub_key_slice: Slice,</span> <span class="line" id="L177"> message_slice: Slice,</span> <span class="line" id="L178"> subject_alt_name_slice: Slice,</span> <span class="line" id="L179"> validity: Validity,</span> <span class="line" id="L180"> version: Version,</span> <span class="line" id="L181"></span> <span class="line" id="L182"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> PubKeyAlgo = <span class="tok-kw">union</span>(AlgorithmCategory) {</span> <span class="line" id="L183"> rsaEncryption: <span class="tok-type">void</span>,</span> <span class="line" id="L184"> X9_62_id_ecPublicKey: NamedCurve,</span> <span class="line" id="L185"> };</span> <span class="line" id="L186"></span> <span class="line" id="L187"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Validity = <span class="tok-kw">struct</span> {</span> <span class="line" id="L188"> not_before: <span class="tok-type">u64</span>,</span> <span class="line" id="L189"> not_after: <span class="tok-type">u64</span>,</span> <span class="line" id="L190"> };</span> <span class="line" id="L191"></span> <span class="line" id="L192"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Slice = der.Element.Slice;</span> <span class="line" id="L193"></span> <span class="line" id="L194"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">slice</span>(p: Parsed, s: Slice) []<span class="tok-kw">const</span> <span class="tok-type">u8</span> {</span> <span class="line" id="L195"> <span class="tok-kw">return</span> p.certificate.buffer[s.start..s.end];</span> <span class="line" id="L196"> }</span> <span class="line" id="L197"></span> <span class="line" id="L198"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">issuer</span>(p: Parsed) []<span class="tok-kw">const</span> <span class="tok-type">u8</span> {</span> <span class="line" id="L199"> <span class="tok-kw">return</span> p.slice(p.issuer_slice);</span> <span class="line" id="L200"> }</span> <span class="line" id="L201"></span> <span class="line" id="L202"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">subject</span>(p: Parsed) []<span class="tok-kw">const</span> <span class="tok-type">u8</span> {</span> <span class="line" id="L203"> <span class="tok-kw">return</span> p.slice(p.subject_slice);</span> <span class="line" id="L204"> }</span> <span class="line" id="L205"></span> <span class="line" id="L206"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">commonName</span>(p: Parsed) []<span class="tok-kw">const</span> <span class="tok-type">u8</span> {</span> <span class="line" id="L207"> <span class="tok-kw">return</span> p.slice(p.common_name_slice);</span> <span class="line" id="L208"> }</span> <span class="line" id="L209"></span> <span class="line" id="L210"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">signature</span>(p: Parsed) []<span class="tok-kw">const</span> <span class="tok-type">u8</span> {</span> <span class="line" id="L211"> <span class="tok-kw">return</span> p.slice(p.signature_slice);</span> <span class="line" id="L212"> }</span> <span class="line" id="L213"></span> <span class="line" id="L214"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">pubKey</span>(p: Parsed) []<span class="tok-kw">const</span> <span class="tok-type">u8</span> {</span> <span class="line" id="L215"> <span class="tok-kw">return</span> p.slice(p.pub_key_slice);</span> <span class="line" id="L216"> }</span> <span class="line" id="L217"></span> <span class="line" id="L218"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">pubKeySigAlgo</span>(p: Parsed) []<span class="tok-kw">const</span> <span class="tok-type">u8</span> {</span> <span class="line" id="L219"> <span class="tok-kw">return</span> p.slice(p.pub_key_signature_algorithm_slice);</span> <span class="line" id="L220"> }</span> <span class="line" id="L221"></span> <span class="line" id="L222"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">message</span>(p: Parsed) []<span class="tok-kw">const</span> <span class="tok-type">u8</span> {</span> <span class="line" id="L223"> <span class="tok-kw">return</span> p.slice(p.message_slice);</span> <span class="line" id="L224"> }</span> <span class="line" id="L225"></span> <span class="line" id="L226"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">subjectAltName</span>(p: Parsed) []<span class="tok-kw">const</span> <span class="tok-type">u8</span> {</span> <span class="line" id="L227"> <span class="tok-kw">return</span> p.slice(p.subject_alt_name_slice);</span> <span class="line" id="L228"> }</span> <span class="line" id="L229"></span> <span class="line" id="L230"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> VerifyError = <span class="tok-kw">error</span>{</span> <span class="line" id="L231"> CertificateIssuerMismatch,</span> <span class="line" id="L232"> CertificateNotYetValid,</span> <span class="line" id="L233"> CertificateExpired,</span> <span class="line" id="L234"> CertificateSignatureAlgorithmUnsupported,</span> <span class="line" id="L235"> CertificateSignatureAlgorithmMismatch,</span> <span class="line" id="L236"> CertificateFieldHasInvalidLength,</span> <span class="line" id="L237"> CertificateFieldHasWrongDataType,</span> <span class="line" id="L238"> CertificatePublicKeyInvalid,</span> <span class="line" id="L239"> CertificateSignatureInvalidLength,</span> <span class="line" id="L240"> CertificateSignatureInvalid,</span> <span class="line" id="L241"> CertificateSignatureUnsupportedBitCount,</span> <span class="line" id="L242"> CertificateSignatureNamedCurveUnsupported,</span> <span class="line" id="L243"> };</span> <span class="line" id="L244"></span> <span class="line" id="L245"> <span class="tok-comment">/// This function verifies:</span></span> <span class="line" id="L246"> <span class="tok-comment">/// * That the subject's issuer is indeed the provided issuer.</span></span> <span class="line" id="L247"> <span class="tok-comment">/// * The time validity of the subject.</span></span> <span class="line" id="L248"> <span class="tok-comment">/// * The signature.</span></span> <span class="line" id="L249"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">verify</span>(parsed_subject: Parsed, parsed_issuer: Parsed, now_sec: <span class="tok-type">i64</span>) VerifyError!<span class="tok-type">void</span> {</span> <span class="line" id="L250"> <span class="tok-comment">// Check that the subject's issuer name matches the issuer's</span> </span> <span class="line" id="L251"> <span class="tok-comment">// subject name.</span> </span> <span class="line" id="L252"> <span class="tok-kw">if</span> (!mem.eql(<span class="tok-type">u8</span>, parsed_subject.issuer(), parsed_issuer.subject())) {</span> <span class="line" id="L253"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificateIssuerMismatch;</span> <span class="line" id="L254"> }</span> <span class="line" id="L255"></span> <span class="line" id="L256"> <span class="tok-kw">if</span> (now_sec < parsed_subject.validity.not_before)</span> <span class="line" id="L257"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificateNotYetValid;</span> <span class="line" id="L258"> <span class="tok-kw">if</span> (now_sec > parsed_subject.validity.not_after)</span> <span class="line" id="L259"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificateExpired;</span> <span class="line" id="L260"></span> <span class="line" id="L261"> <span class="tok-kw">switch</span> (parsed_subject.signature_algorithm) {</span> <span class="line" id="L262"> <span class="tok-kw">inline</span> .sha1WithRSAEncryption,</span> <span class="line" id="L263"> .sha224WithRSAEncryption,</span> <span class="line" id="L264"> .sha256WithRSAEncryption,</span> <span class="line" id="L265"> .sha384WithRSAEncryption,</span> <span class="line" id="L266"> .sha512WithRSAEncryption,</span> <span class="line" id="L267"> => \|algorithm\| <span class="tok-kw">return</span> verifyRsa(</span> <span class="line" id="L268"> algorithm.Hash(),</span> <span class="line" id="L269"> parsed_subject.message(),</span> <span class="line" id="L270"> parsed_subject.signature(),</span> <span class="line" id="L271"> parsed_issuer.pub_key_algo,</span> <span class="line" id="L272"> parsed_issuer.pubKey(),</span> <span class="line" id="L273"> ),</span> <span class="line" id="L274"></span> <span class="line" id="L275"> <span class="tok-kw">inline</span> .ecdsa_with_SHA224,</span> <span class="line" id="L276"> .ecdsa_with_SHA256,</span> <span class="line" id="L277"> .ecdsa_with_SHA384,</span> <span class="line" id="L278"> .ecdsa_with_SHA512,</span> <span class="line" id="L279"> => \|algorithm\| <span class="tok-kw">return</span> verify_ecdsa(</span> <span class="line" id="L280"> algorithm.Hash(),</span> <span class="line" id="L281"> parsed_subject.message(),</span> <span class="line" id="L282"> parsed_subject.signature(),</span> <span class="line" id="L283"> parsed_issuer.pub_key_algo,</span> <span class="line" id="L284"> parsed_issuer.pubKey(),</span> <span class="line" id="L285"> ),</span> <span class="line" id="L286"></span> <span class="line" id="L287"> .md2WithRSAEncryption, .md5WithRSAEncryption => {</span> <span class="line" id="L288"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificateSignatureAlgorithmUnsupported;</span> <span class="line" id="L289"> },</span> <span class="line" id="L290"> }</span> <span class="line" id="L291"> }</span> <span class="line" id="L292"></span> <span class="line" id="L293"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> VerifyHostNameError = <span class="tok-kw">error</span>{</span> <span class="line" id="L294"> CertificateHostMismatch,</span> <span class="line" id="L295"> CertificateFieldHasInvalidLength,</span> <span class="line" id="L296"> };</span> <span class="line" id="L297"></span> <span class="line" id="L298"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">verifyHostName</span>(parsed_subject: Parsed, host_name: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) VerifyHostNameError!<span class="tok-type">void</span> {</span> <span class="line" id="L299"> <span class="tok-comment">// If the Subject Alternative Names extension is present, this is</span> </span> <span class="line" id="L300"> <span class="tok-comment">// what to check. Otherwise, only the common name is checked.</span> </span> <span class="line" id="L301"> <span class="tok-kw">const</span> subject_alt_name = parsed_subject.subjectAltName();</span> <span class="line" id="L302"> <span class="tok-kw">if</span> (subject_alt_name.len == <span class="tok-number">0</span>) {</span> <span class="line" id="L303"> <span class="tok-kw">if</span> (checkHostName(host_name, parsed_subject.commonName())) {</span> <span class="line" id="L304"> <span class="tok-kw">return</span>;</span> <span class="line" id="L305"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L306"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificateHostMismatch;</span> <span class="line" id="L307"> }</span> <span class="line" id="L308"> }</span> <span class="line" id="L309"></span> <span class="line" id="L310"> <span class="tok-kw">const</span> general_names = <span class="tok-kw">try</span> der.Element.parse(subject_alt_name, <span class="tok-number">0</span>);</span> <span class="line" id="L311"> <span class="tok-kw">var</span> name_i = general_names.slice.start;</span> <span class="line" id="L312"> <span class="tok-kw">while</span> (name_i < general_names.slice.end) {</span> <span class="line" id="L313"> <span class="tok-kw">const</span> general_name = <span class="tok-kw">try</span> der.Element.parse(subject_alt_name, name_i);</span> <span class="line" id="L314"> name_i = general_name.slice.end;</span> <span class="line" id="L315"> <span class="tok-kw">switch</span> (<span class="tok-builtin">@as</span>(GeneralNameTag, <span class="tok-builtin">@enumFromInt</span>(<span class="tok-builtin">@intFromEnum</span>(general_name.identifier.tag)))) {</span> <span class="line" id="L316"> .dNSName => {</span> <span class="line" id="L317"> <span class="tok-kw">const</span> dns_name = subject_alt_name[general_name.slice.start..general_name.slice.end];</span> <span class="line" id="L318"> <span class="tok-kw">if</span> (checkHostName(host_name, dns_name)) <span class="tok-kw">return</span>;</span> <span class="line" id="L319"> },</span> <span class="line" id="L320"> <span class="tok-kw">else</span> => {},</span> <span class="line" id="L321"> }</span> <span class="line" id="L322"> }</span> <span class="line" id="L323"></span> <span class="line" id="L324"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificateHostMismatch;</span> <span class="line" id="L325"> }</span> <span class="line" id="L326"></span> <span class="line" id="L327"> <span class="tok-comment">// Check hostname according to RFC2818 specification:</span> </span> <span class="line" id="L328"> <span class="tok-comment">//</span> </span> <span class="line" id="L329"> <span class="tok-comment">// If more than one identity of a given type is present in</span> </span> <span class="line" id="L330"> <span class="tok-comment">// the certificate (e.g., more than one DNSName name, a match in any one</span> </span> <span class="line" id="L331"> <span class="tok-comment">// of the set is considered acceptable.) Names may contain the wildcard</span> </span> <span class="line" id="L332"> <span class="tok-comment">// character * which is considered to match any single domain name</span> </span> <span class="line" id="L333"> <span class="tok-comment">// component or component fragment. E.g., .a.com matches foo.a.com but</span> </span> <span class="line" id="L334"> <span class="tok-comment">// not bar.foo.a.com. f.com matches foo.com but not bar.com.</span> </span> <span class="line" id="L335"> <span class="tok-kw">fn</span> <span class="tok-fn">checkHostName</span>(host_name: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, dns_name: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">bool</span> {</span> <span class="line" id="L336"> <span class="tok-kw">if</span> (mem.eql(<span class="tok-type">u8</span>, dns_name, host_name)) {</span> <span class="line" id="L337"> <span class="tok-kw">return</span> <span class="tok-null">true</span>; <span class="tok-comment">// exact match</span> </span> <span class="line" id="L338"> }</span> <span class="line" id="L339"></span> <span class="line" id="L340"> <span class="tok-kw">var</span> it_host = std.mem.splitScalar(<span class="tok-type">u8</span>, host_name, <span class="tok-str">'.'</span>);</span> <span class="line" id="L341"> <span class="tok-kw">var</span> it_dns = std.mem.splitScalar(<span class="tok-type">u8</span>, dns_name, <span class="tok-str">'.'</span>);</span> <span class="line" id="L342"></span> <span class="line" id="L343"> <span class="tok-kw">const</span> len_match = <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L344"> <span class="tok-kw">const</span> host = it_host.next();</span> <span class="line" id="L345"> <span class="tok-kw">const</span> dns = it_dns.next();</span> <span class="line" id="L346"></span> <span class="line" id="L347"> <span class="tok-kw">if</span> (host == <span class="tok-null">null</span> <span class="tok-kw">or</span> dns == <span class="tok-null">null</span>) {</span> <span class="line" id="L348"> <span class="tok-kw">break</span> host == <span class="tok-null">null</span> <span class="tok-kw">and</span> dns == <span class="tok-null">null</span>;</span> <span class="line" id="L349"> }</span> <span class="line" id="L350"></span> <span class="line" id="L351"> <span class="tok-comment">// If not a wildcard and they dont</span> </span> <span class="line" id="L352"> <span class="tok-comment">// match then there is no match.</span> </span> <span class="line" id="L353"> <span class="tok-kw">if</span> (mem.eql(<span class="tok-type">u8</span>, dns.?, <span class="tok-str">""</span>) == <span class="tok-null">false</span> <span class="tok-kw">and</span> mem.eql(<span class="tok-type">u8</span>, dns.?, host.?) == <span class="tok-null">false</span>) {</span> <span class="line" id="L354"> <span class="tok-kw">return</span> <span class="tok-null">false</span>;</span> <span class="line" id="L355"> }</span> <span class="line" id="L356"> };</span> <span class="line" id="L357"></span> <span class="line" id="L358"> <span class="tok-comment">// If the components are not the same</span> </span> <span class="line" id="L359"> <span class="tok-comment">// length then there is no match.</span> </span> <span class="line" id="L360"> <span class="tok-kw">return</span> len_match;</span> <span class="line" id="L361"> }</span> <span class="line" id="L362">};</span> <span class="line" id="L363"></span> <span class="line" id="L364"><span class="tok-kw">test</span> <span class="tok-str">"Parsed.checkHostName"</span> {</span> <span class="line" id="L365"> <span class="tok-kw">const</span> expectEqual = std.testing.expectEqual;</span> <span class="line" id="L366"></span> <span class="line" id="L367"> <span class="tok-kw">try</span> expectEqual(<span class="tok-null">true</span>, Parsed.checkHostName(<span class="tok-str">"ziglang.org"</span>, <span class="tok-str">"ziglang.org"</span>));</span> <span class="line" id="L368"> <span class="tok-kw">try</span> expectEqual(<span class="tok-null">true</span>, Parsed.checkHostName(<span class="tok-str">"bar.ziglang.org"</span>, <span class="tok-str">".ziglang.org"</span>));</span> <span class="line" id="L369"> <span class="tok-kw">try</span> expectEqual(<span class="tok-null">false</span>, Parsed.checkHostName(<span class="tok-str">"foo.bar.ziglang.org"</span>, <span class="tok-str">".ziglang.org"</span>));</span> <span class="line" id="L370"> <span class="tok-kw">try</span> expectEqual(<span class="tok-null">false</span>, Parsed.checkHostName(<span class="tok-str">"ziglang.org"</span>, <span class="tok-str">"zig.org"</span>));</span> <span class="line" id="L371"> <span class="tok-kw">try</span> expectEqual(<span class="tok-null">false</span>, Parsed.checkHostName(<span class="tok-str">"lang.org"</span>, <span class="tok-str">"zig.org"</span>));</span> <span class="line" id="L372">}</span> <span class="line" id="L373"></span> <span class="line" id="L374"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> ParseError = der.Element.ParseElementError \|\| ParseVersionError \|\| ParseTimeError \|\| ParseEnumError \|\| ParseBitStringError;</span> <span class="line" id="L375"></span> <span class="line" id="L376"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">parse</span>(cert: Certificate) ParseError!Parsed {</span> <span class="line" id="L377"> <span class="tok-kw">const</span> cert_bytes = cert.buffer;</span> <span class="line" id="L378"> <span class="tok-kw">const</span> certificate = <span class="tok-kw">try</span> der.Element.parse(cert_bytes, cert.index);</span> <span class="line" id="L379"> <span class="tok-kw">const</span> tbs_certificate = <span class="tok-kw">try</span> der.Element.parse(cert_bytes, certificate.slice.start);</span> <span class="line" id="L380"> <span class="tok-kw">const</span> version_elem = <span class="tok-kw">try</span> der.Element.parse(cert_bytes, tbs_certificate.slice.start);</span> <span class="line" id="L381"> <span class="tok-kw">const</span> version = <span class="tok-kw">try</span> parseVersion(cert_bytes, version_elem);</span> <span class="line" id="L382"> <span class="tok-kw">const</span> serial_number = <span class="tok-kw">if</span> (<span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@bitCast</span>(version_elem.identifier)) == <span class="tok-number">0xa0</span>)</span> <span class="line" id="L383"> <span class="tok-kw">try</span> der.Element.parse(cert_bytes, version_elem.slice.end)</span> <span class="line" id="L384"> <span class="tok-kw">else</span></span> <span class="line" id="L385"> version_elem;</span> <span class="line" id="L386"> <span class="tok-comment">// RFC 5280, section 4.1.2.3:</span> </span> <span class="line" id="L387"> <span class="tok-comment">// "This field MUST contain the same algorithm identifier as</span> </span> <span class="line" id="L388"> <span class="tok-comment">// the signatureAlgorithm field in the sequence Certificate."</span> </span> <span class="line" id="L389"> <span class="tok-kw">const</span> tbs_signature = <span class="tok-kw">try</span> der.Element.parse(cert_bytes, serial_number.slice.end);</span> <span class="line" id="L390"> <span class="tok-kw">const</span> issuer = <span class="tok-kw">try</span> der.Element.parse(cert_bytes, tbs_signature.slice.end);</span> <span class="line" id="L391"> <span class="tok-kw">const</span> validity = <span class="tok-kw">try</span> der.Element.parse(cert_bytes, issuer.slice.end);</span> <span class="line" id="L392"> <span class="tok-kw">const</span> not_before = <span class="tok-kw">try</span> der.Element.parse(cert_bytes, validity.slice.start);</span> <span class="line" id="L393"> <span class="tok-kw">const</span> not_before_utc = <span class="tok-kw">try</span> parseTime(cert, not_before);</span> <span class="line" id="L394"> <span class="tok-kw">const</span> not_after = <span class="tok-kw">try</span> der.Element.parse(cert_bytes, not_before.slice.end);</span> <span class="line" id="L395"> <span class="tok-kw">const</span> not_after_utc = <span class="tok-kw">try</span> parseTime(cert, not_after);</span> <span class="line" id="L396"> <span class="tok-kw">const</span> subject = <span class="tok-kw">try</span> der.Element.parse(cert_bytes, validity.slice.end);</span> <span class="line" id="L397"></span> <span class="line" id="L398"> <span class="tok-kw">const</span> pub_key_info = <span class="tok-kw">try</span> der.Element.parse(cert_bytes, subject.slice.end);</span> <span class="line" id="L399"> <span class="tok-kw">const</span> pub_key_signature_algorithm = <span class="tok-kw">try</span> der.Element.parse(cert_bytes, pub_key_info.slice.start);</span> <span class="line" id="L400"> <span class="tok-kw">const</span> pub_key_algo_elem = <span class="tok-kw">try</span> der.Element.parse(cert_bytes, pub_key_signature_algorithm.slice.start);</span> <span class="line" id="L401"> <span class="tok-kw">const</span> pub_key_algo_tag = <span class="tok-kw">try</span> parseAlgorithmCategory(cert_bytes, pub_key_algo_elem);</span> <span class="line" id="L402"> <span class="tok-kw">var</span> pub_key_algo: Parsed.PubKeyAlgo = <span class="tok-null">undefined</span>;</span> <span class="line" id="L403"> <span class="tok-kw">switch</span> (pub_key_algo_tag) {</span> <span class="line" id="L404"> .rsaEncryption => {</span> <span class="line" id="L405"> pub_key_algo = .{ .rsaEncryption = {} };</span> <span class="line" id="L406"> },</span> <span class="line" id="L407"> .X9_62_id_ecPublicKey => {</span> <span class="line" id="L408"> <span class="tok-comment">// RFC 5480 Section 2.1.1.1 Named Curve</span> </span> <span class="line" id="L409"> <span class="tok-comment">// ECParameters ::= CHOICE {</span> </span> <span class="line" id="L410"> <span class="tok-comment">// namedCurve OBJECT IDENTIFIER</span> </span> <span class="line" id="L411"> <span class="tok-comment">// -- implicitCurve NULL</span> </span> <span class="line" id="L412"> <span class="tok-comment">// -- specifiedCurve SpecifiedECDomain</span> </span> <span class="line" id="L413"> <span class="tok-comment">// }</span> </span> <span class="line" id="L414"> <span class="tok-kw">const</span> params_elem = <span class="tok-kw">try</span> der.Element.parse(cert_bytes, pub_key_algo_elem.slice.end);</span> <span class="line" id="L415"> <span class="tok-kw">const</span> named_curve = <span class="tok-kw">try</span> parseNamedCurve(cert_bytes, params_elem);</span> <span class="line" id="L416"> pub_key_algo = .{ .X9_62_id_ecPublicKey = named_curve };</span> <span class="line" id="L417"> },</span> <span class="line" id="L418"> }</span> <span class="line" id="L419"> <span class="tok-kw">const</span> pub_key_elem = <span class="tok-kw">try</span> der.Element.parse(cert_bytes, pub_key_signature_algorithm.slice.end);</span> <span class="line" id="L420"> <span class="tok-kw">const</span> pub_key = <span class="tok-kw">try</span> parseBitString(cert, pub_key_elem);</span> <span class="line" id="L421"></span> <span class="line" id="L422"> <span class="tok-kw">var</span> common_name = der.Element.Slice.empty;</span> <span class="line" id="L423"> <span class="tok-kw">var</span> name_i = subject.slice.start;</span> <span class="line" id="L424"> <span class="tok-kw">while</span> (name_i < subject.slice.end) {</span> <span class="line" id="L425"> <span class="tok-kw">const</span> rdn = <span class="tok-kw">try</span> der.Element.parse(cert_bytes, name_i);</span> <span class="line" id="L426"> <span class="tok-kw">var</span> rdn_i = rdn.slice.start;</span> <span class="line" id="L427"> <span class="tok-kw">while</span> (rdn_i < rdn.slice.end) {</span> <span class="line" id="L428"> <span class="tok-kw">const</span> atav = <span class="tok-kw">try</span> der.Element.parse(cert_bytes, rdn_i);</span> <span class="line" id="L429"> <span class="tok-kw">var</span> atav_i = atav.slice.start;</span> <span class="line" id="L430"> <span class="tok-kw">while</span> (atav_i < atav.slice.end) {</span> <span class="line" id="L431"> <span class="tok-kw">const</span> ty_elem = <span class="tok-kw">try</span> der.Element.parse(cert_bytes, atav_i);</span> <span class="line" id="L432"> <span class="tok-kw">const</span> val = <span class="tok-kw">try</span> der.Element.parse(cert_bytes, ty_elem.slice.end);</span> <span class="line" id="L433"> atav_i = val.slice.end;</span> <span class="line" id="L434"> <span class="tok-kw">const</span> ty = parseAttribute(cert_bytes, ty_elem) <span class="tok-kw">catch</span> \|err\| <span class="tok-kw">switch</span> (err) {</span> <span class="line" id="L435"> <span class="tok-kw">error</span>.CertificateHasUnrecognizedObjectId => <span class="tok-kw">continue</span>,</span> <span class="line" id="L436"> <span class="tok-kw">else</span> => \|e\| <span class="tok-kw">return</span> e,</span> <span class="line" id="L437"> };</span> <span class="line" id="L438"> <span class="tok-kw">switch</span> (ty) {</span> <span class="line" id="L439"> .commonName => common_name = val.slice,</span> <span class="line" id="L440"> <span class="tok-kw">else</span> => {},</span> <span class="line" id="L441"> }</span> <span class="line" id="L442"> }</span> <span class="line" id="L443"> rdn_i = atav.slice.end;</span> <span class="line" id="L444"> }</span> <span class="line" id="L445"> name_i = rdn.slice.end;</span> <span class="line" id="L446"> }</span> <span class="line" id="L447"></span> <span class="line" id="L448"> <span class="tok-kw">const</span> sig_algo = <span class="tok-kw">try</span> der.Element.parse(cert_bytes, tbs_certificate.slice.end);</span> <span class="line" id="L449"> <span class="tok-kw">const</span> algo_elem = <span class="tok-kw">try</span> der.Element.parse(cert_bytes, sig_algo.slice.start);</span> <span class="line" id="L450"> <span class="tok-kw">const</span> signature_algorithm = <span class="tok-kw">try</span> parseAlgorithm(cert_bytes, algo_elem);</span> <span class="line" id="L451"> <span class="tok-kw">const</span> sig_elem = <span class="tok-kw">try</span> der.Element.parse(cert_bytes, sig_algo.slice.end);</span> <span class="line" id="L452"> <span class="tok-kw">const</span> signature = <span class="tok-kw">try</span> parseBitString(cert, sig_elem);</span> <span class="line" id="L453"></span> <span class="line" id="L454"> <span class="tok-comment">// Extensions</span> </span> <span class="line" id="L455"> <span class="tok-kw">var</span> subject_alt_name_slice = der.Element.Slice.empty;</span> <span class="line" id="L456"> ext: {</span> <span class="line" id="L457"> <span class="tok-kw">if</span> (version == .v1)</span> <span class="line" id="L458"> <span class="tok-kw">break</span> :ext;</span> <span class="line" id="L459"></span> <span class="line" id="L460"> <span class="tok-kw">if</span> (pub_key_info.slice.end >= tbs_certificate.slice.end)</span> <span class="line" id="L461"> <span class="tok-kw">break</span> :ext;</span> <span class="line" id="L462"></span> <span class="line" id="L463"> <span class="tok-kw">const</span> outer_extensions = <span class="tok-kw">try</span> der.Element.parse(cert_bytes, pub_key_info.slice.end);</span> <span class="line" id="L464"> <span class="tok-kw">if</span> (outer_extensions.identifier.tag != .bitstring)</span> <span class="line" id="L465"> <span class="tok-kw">break</span> :ext;</span> <span class="line" id="L466"></span> <span class="line" id="L467"> <span class="tok-kw">const</span> extensions = <span class="tok-kw">try</span> der.Element.parse(cert_bytes, outer_extensions.slice.start);</span> <span class="line" id="L468"></span> <span class="line" id="L469"> <span class="tok-kw">var</span> ext_i = extensions.slice.start;</span> <span class="line" id="L470"> <span class="tok-kw">while</span> (ext_i < extensions.slice.end) {</span> <span class="line" id="L471"> <span class="tok-kw">const</span> extension = <span class="tok-kw">try</span> der.Element.parse(cert_bytes, ext_i);</span> <span class="line" id="L472"> ext_i = extension.slice.end;</span> <span class="line" id="L473"> <span class="tok-kw">const</span> oid_elem = <span class="tok-kw">try</span> der.Element.parse(cert_bytes, extension.slice.start);</span> <span class="line" id="L474"> <span class="tok-kw">const</span> ext_id = parseExtensionId(cert_bytes, oid_elem) <span class="tok-kw">catch</span> \|err\| <span class="tok-kw">switch</span> (err) {</span> <span class="line" id="L475"> <span class="tok-kw">error</span>.CertificateHasUnrecognizedObjectId => <span class="tok-kw">continue</span>,</span> <span class="line" id="L476"> <span class="tok-kw">else</span> => \|e\| <span class="tok-kw">return</span> e,</span> <span class="line" id="L477"> };</span> <span class="line" id="L478"> <span class="tok-kw">const</span> critical_elem = <span class="tok-kw">try</span> der.Element.parse(cert_bytes, oid_elem.slice.end);</span> <span class="line" id="L479"> <span class="tok-kw">const</span> ext_bytes_elem = <span class="tok-kw">if</span> (critical_elem.identifier.tag != .boolean)</span> <span class="line" id="L480"> critical_elem</span> <span class="line" id="L481"> <span class="tok-kw">else</span></span> <span class="line" id="L482"> <span class="tok-kw">try</span> der.Element.parse(cert_bytes, critical_elem.slice.end);</span> <span class="line" id="L483"> <span class="tok-kw">switch</span> (ext_id) {</span> <span class="line" id="L484"> .subject_alt_name => subject_alt_name_slice = ext_bytes_elem.slice,</span> <span class="line" id="L485"> <span class="tok-kw">else</span> => <span class="tok-kw">continue</span>,</span> <span class="line" id="L486"> }</span> <span class="line" id="L487"> }</span> <span class="line" id="L488"> }</span> <span class="line" id="L489"></span> <span class="line" id="L490"> <span class="tok-kw">return</span> .{</span> <span class="line" id="L491"> .certificate = cert,</span> <span class="line" id="L492"> .common_name_slice = common_name,</span> <span class="line" id="L493"> .issuer_slice = issuer.slice,</span> <span class="line" id="L494"> .subject_slice = subject.slice,</span> <span class="line" id="L495"> .signature_slice = signature,</span> <span class="line" id="L496"> .signature_algorithm = signature_algorithm,</span> <span class="line" id="L497"> .message_slice = .{ .start = certificate.slice.start, .end = tbs_certificate.slice.end },</span> <span class="line" id="L498"> .pub_key_algo = pub_key_algo,</span> <span class="line" id="L499"> .pub_key_slice = pub_key,</span> <span class="line" id="L500"> .validity = .{</span> <span class="line" id="L501"> .not_before = not_before_utc,</span> <span class="line" id="L502"> .not_after = not_after_utc,</span> <span class="line" id="L503"> },</span> <span class="line" id="L504"> .subject_alt_name_slice = subject_alt_name_slice,</span> <span class="line" id="L505"> .version = version,</span> <span class="line" id="L506"> };</span> <span class="line" id="L507">}</span> <span class="line" id="L508"></span> <span class="line" id="L509"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">verify</span>(subject: Certificate, issuer: Certificate, now_sec: <span class="tok-type">i64</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L510"> <span class="tok-kw">const</span> parsed_subject = <span class="tok-kw">try</span> subject.parse();</span> <span class="line" id="L511"> <span class="tok-kw">const</span> parsed_issuer = <span class="tok-kw">try</span> issuer.parse();</span> <span class="line" id="L512"> <span class="tok-kw">return</span> parsed_subject.verify(parsed_issuer, now_sec);</span> <span class="line" id="L513">}</span> <span class="line" id="L514"></span> <span class="line" id="L515"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">contents</span>(cert: Certificate, elem: der.Element) []<span class="tok-kw">const</span> <span class="tok-type">u8</span> {</span> <span class="line" id="L516"> <span class="tok-kw">return</span> cert.buffer[elem.slice.start..elem.slice.end];</span> <span class="line" id="L517">}</span> <span class="line" id="L518"></span> <span class="line" id="L519"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> ParseBitStringError = <span class="tok-kw">error</span>{ CertificateFieldHasWrongDataType, CertificateHasInvalidBitString };</span> <span class="line" id="L520"></span> <span class="line" id="L521"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">parseBitString</span>(cert: Certificate, elem: der.Element) !der.Element.Slice {</span> <span class="line" id="L522"> <span class="tok-kw">if</span> (elem.identifier.tag != .bitstring) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificateFieldHasWrongDataType;</span> <span class="line" id="L523"> <span class="tok-kw">if</span> (cert.buffer[elem.slice.start] != <span class="tok-number">0</span>) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificateHasInvalidBitString;</span> <span class="line" id="L524"> <span class="tok-kw">return</span> .{ .start = elem.slice.start + <span class="tok-number">1</span>, .end = elem.slice.end };</span> <span class="line" id="L525">}</span> <span class="line" id="L526"></span> <span class="line" id="L527"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> ParseTimeError = <span class="tok-kw">error</span>{ CertificateTimeInvalid, CertificateFieldHasWrongDataType };</span> <span class="line" id="L528"></span> <span class="line" id="L529"><span class="tok-comment">/// Returns number of seconds since epoch.</span></span> <span class="line" id="L530"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">parseTime</span>(cert: Certificate, elem: der.Element) ParseTimeError!<span class="tok-type">u64</span> {</span> <span class="line" id="L531"> <span class="tok-kw">const</span> bytes = cert.contents(elem);</span> <span class="line" id="L532"> <span class="tok-kw">switch</span> (elem.identifier.tag) {</span> <span class="line" id="L533"> .utc_time => {</span> <span class="line" id="L534"> <span class="tok-comment">// Example: "YYMMDD000000Z"</span> </span> <span class="line" id="L535"> <span class="tok-kw">if</span> (bytes.len != <span class="tok-number">13</span>)</span> <span class="line" id="L536"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificateTimeInvalid;</span> <span class="line" id="L537"> <span class="tok-kw">if</span> (bytes[<span class="tok-number">12</span>] != <span class="tok-str">'Z'</span>)</span> <span class="line" id="L538"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificateTimeInvalid;</span> <span class="line" id="L539"></span> <span class="line" id="L540"> <span class="tok-kw">return</span> Date.toSeconds(.{</span> <span class="line" id="L541"> .year = <span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, <span class="tok-number">2000</span>) + <span class="tok-kw">try</span> parseTimeDigits(bytes[<span class="tok-number">0</span>..<span class="tok-number">2</span>]., <span class="tok-number">0</span>, <span class="tok-number">99</span>),</span> <span class="line" id="L542"> .month = <span class="tok-kw">try</span> parseTimeDigits(bytes[<span class="tok-number">2</span>..<span class="tok-number">4</span>]., <span class="tok-number">1</span>, <span class="tok-number">12</span>),</span> <span class="line" id="L543"> .day = <span class="tok-kw">try</span> parseTimeDigits(bytes[<span class="tok-number">4</span>..<span class="tok-number">6</span>]., <span class="tok-number">1</span>, <span class="tok-number">31</span>),</span> <span class="line" id="L544"> .hour = <span class="tok-kw">try</span> parseTimeDigits(bytes[<span class="tok-number">6</span>..<span class="tok-number">8</span>]., <span class="tok-number">0</span>, <span class="tok-number">23</span>),</span> <span class="line" id="L545"> .minute = <span class="tok-kw">try</span> parseTimeDigits(bytes[<span class="tok-number">8</span>..<span class="tok-number">10</span>]., <span class="tok-number">0</span>, <span class="tok-number">59</span>),</span> <span class="line" id="L546"> .second = <span class="tok-kw">try</span> parseTimeDigits(bytes[<span class="tok-number">10</span>..<span class="tok-number">12</span>]., <span class="tok-number">0</span>, <span class="tok-number">59</span>),</span> <span class="line" id="L547"> });</span> <span class="line" id="L548"> },</span> <span class="line" id="L549"> .generalized_time => {</span> <span class="line" id="L550"> <span class="tok-comment">// Examples:</span> </span> <span class="line" id="L551"> <span class="tok-comment">// "19920521000000Z"</span> </span> <span class="line" id="L552"> <span class="tok-comment">// "19920622123421Z"</span> </span> <span class="line" id="L553"> <span class="tok-comment">// "19920722132100.3Z"</span> </span> <span class="line" id="L554"> <span class="tok-kw">if</span> (bytes.len < <span class="tok-number">15</span>)</span> <span class="line" id="L555"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificateTimeInvalid;</span> <span class="line" id="L556"> <span class="tok-kw">return</span> Date.toSeconds(.{</span> <span class="line" id="L557"> .year = <span class="tok-kw">try</span> parseYear4(bytes[<span class="tok-number">0</span>..<span class="tok-number">4</span>]),</span> <span class="line" id="L558"> .month = <span class="tok-kw">try</span> parseTimeDigits(bytes[<span class="tok-number">4</span>..<span class="tok-number">6</span>]., <span class="tok-number">1</span>, <span class="tok-number">12</span>),</span> <span class="line" id="L559"> .day = <span class="tok-kw">try</span> parseTimeDigits(bytes[<span class="tok-number">6</span>..<span class="tok-number">8</span>]., <span class="tok-number">1</span>, <span class="tok-number">31</span>),</span> <span class="line" id="L560"> .hour = <span class="tok-kw">try</span> parseTimeDigits(bytes[<span class="tok-number">8</span>..<span class="tok-number">10</span>]., <span class="tok-number">0</span>, <span class="tok-number">23</span>),</span> <span class="line" id="L561"> .minute = <span class="tok-kw">try</span> parseTimeDigits(bytes[<span class="tok-number">10</span>..<span class="tok-number">12</span>]., <span class="tok-number">0</span>, <span class="tok-number">59</span>),</span> <span class="line" id="L562"> .second = <span class="tok-kw">try</span> parseTimeDigits(bytes[<span class="tok-number">12</span>..<span class="tok-number">14</span>]., <span class="tok-number">0</span>, <span class="tok-number">59</span>),</span> <span class="line" id="L563"> });</span> <span class="line" id="L564"> },</span> <span class="line" id="L565"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificateFieldHasWrongDataType,</span> <span class="line" id="L566"> }</span> <span class="line" id="L567">}</span> <span class="line" id="L568"></span> <span class="line" id="L569"><span class="tok-kw">const</span> Date = <span class="tok-kw">struct</span> {</span> <span class="line" id="L570"> <span class="tok-comment">/// example: 1999</span></span> <span class="line" id="L571"> year: <span class="tok-type">u16</span>,</span> <span class="line" id="L572"> <span class="tok-comment">/// range: 1 to 12</span></span> <span class="line" id="L573"> month: <span class="tok-type">u8</span>,</span> <span class="line" id="L574"> <span class="tok-comment">/// range: 1 to 31</span></span> <span class="line" id="L575"> day: <span class="tok-type">u8</span>,</span> <span class="line" id="L576"> <span class="tok-comment">/// range: 0 to 59</span></span> <span class="line" id="L577"> hour: <span class="tok-type">u8</span>,</span> <span class="line" id="L578"> <span class="tok-comment">/// range: 0 to 59</span></span> <span class="line" id="L579"> minute: <span class="tok-type">u8</span>,</span> <span class="line" id="L580"> <span class="tok-comment">/// range: 0 to 59</span></span> <span class="line" id="L581"> second: <span class="tok-type">u8</span>,</span> <span class="line" id="L582"></span> <span class="line" id="L583"> <span class="tok-comment">/// Convert to number of seconds since epoch.</span></span> <span class="line" id="L584"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toSeconds</span>(date: Date) <span class="tok-type">u64</span> {</span> <span class="line" id="L585"> <span class="tok-kw">var</span> sec: <span class="tok-type">u64</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L586"></span> <span class="line" id="L587"> {</span> <span class="line" id="L588"> <span class="tok-kw">var</span> year: <span class="tok-type">u16</span> = <span class="tok-number">1970</span>;</span> <span class="line" id="L589"> <span class="tok-kw">while</span> (year < date.year) : (year += <span class="tok-number">1</span>) {</span> <span class="line" id="L590"> <span class="tok-kw">const</span> days: <span class="tok-type">u64</span> = std.time.epoch.getDaysInYear(year);</span> <span class="line" id="L591"> sec += days * std.time.epoch.secs_per_day;</span> <span class="line" id="L592"> }</span> <span class="line" id="L593"> }</span> <span class="line" id="L594"></span> <span class="line" id="L595"> {</span> <span class="line" id="L596"> <span class="tok-kw">const</span> is_leap = std.time.epoch.isLeapYear(date.year);</span> <span class="line" id="L597"> <span class="tok-kw">var</span> month: <span class="tok-type">u4</span> = <span class="tok-number">1</span>;</span> <span class="line" id="L598"> <span class="tok-kw">while</span> (month < date.month) : (month += <span class="tok-number">1</span>) {</span> <span class="line" id="L599"> <span class="tok-kw">const</span> days: <span class="tok-type">u64</span> = std.time.epoch.getDaysInMonth(</span> <span class="line" id="L600"> <span class="tok-builtin">@as</span>(std.time.epoch.YearLeapKind, <span class="tok-builtin">@enumFromInt</span>(<span class="tok-builtin">@intFromBool</span>(is_leap))),</span> <span class="line" id="L601"> <span class="tok-builtin">@as</span>(std.time.epoch.Month, <span class="tok-builtin">@enumFromInt</span>(month)),</span> <span class="line" id="L602"> );</span> <span class="line" id="L603"> sec += days * std.time.epoch.secs_per_day;</span> <span class="line" id="L604"> }</span> <span class="line" id="L605"> }</span> <span class="line" id="L606"></span> <span class="line" id="L607"> sec += (date.day - <span class="tok-number">1</span>) * <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, std.time.epoch.secs_per_day);</span> <span class="line" id="L608"> sec += date.hour * <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">60</span> * <span class="tok-number">60</span>);</span> <span class="line" id="L609"> sec += date.minute * <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">60</span>);</span> <span class="line" id="L610"> sec += date.second;</span> <span class="line" id="L611"></span> <span class="line" id="L612"> <span class="tok-kw">return</span> sec;</span> <span class="line" id="L613"> }</span> <span class="line" id="L614">};</span> <span class="line" id="L615"></span> <span class="line" id="L616"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">parseTimeDigits</span>(nn: <span class="tok-builtin">@Vector</span>(<span class="tok-number">2</span>, <span class="tok-type">u8</span>), min: <span class="tok-type">u8</span>, max: <span class="tok-type">u8</span>) !<span class="tok-type">u8</span> {</span> <span class="line" id="L617"> <span class="tok-kw">const</span> zero: <span class="tok-builtin">@Vector</span>(<span class="tok-number">2</span>, <span class="tok-type">u8</span>) = .{ <span class="tok-str">'0'</span>, <span class="tok-str">'0'</span> };</span> <span class="line" id="L618"> <span class="tok-kw">const</span> mm: <span class="tok-builtin">@Vector</span>(<span class="tok-number">2</span>, <span class="tok-type">u8</span>) = .{ <span class="tok-number">10</span>, <span class="tok-number">1</span> };</span> <span class="line" id="L619"> <span class="tok-kw">const</span> result = <span class="tok-builtin">@reduce</span>(.Add, (nn -% zero) % mm);</span> <span class="line" id="L620"> <span class="tok-kw">if</span> (result < min) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificateTimeInvalid;</span> <span class="line" id="L621"> <span class="tok-kw">if</span> (result > max) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificateTimeInvalid;</span> <span class="line" id="L622"> <span class="tok-kw">return</span> result;</span> <span class="line" id="L623">}</span> <span class="line" id="L624"></span> <span class="line" id="L625"><span class="tok-kw">test</span> parseTimeDigits {</span> <span class="line" id="L626"> <span class="tok-kw">const</span> expectEqual = std.testing.expectEqual;</span> <span class="line" id="L627"> <span class="tok-kw">try</span> expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-number">0</span>), <span class="tok-kw">try</span> parseTimeDigits(<span class="tok-str">"00"</span>., <span class="tok-number">0</span>, <span class="tok-number">99</span>));</span> <span class="line" id="L628"> <span class="tok-kw">try</span> expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-number">99</span>), <span class="tok-kw">try</span> parseTimeDigits(<span class="tok-str">"99"</span>., <span class="tok-number">0</span>, <span class="tok-number">99</span>));</span> <span class="line" id="L629"> <span class="tok-kw">try</span> expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-number">42</span>), <span class="tok-kw">try</span> parseTimeDigits(<span class="tok-str">"42"</span>., <span class="tok-number">0</span>, <span class="tok-number">99</span>));</span> <span class="line" id="L630"></span> <span class="line" id="L631"> <span class="tok-kw">const</span> expectError = std.testing.expectError;</span> <span class="line" id="L632"> <span class="tok-kw">try</span> expectError(<span class="tok-kw">error</span>.CertificateTimeInvalid, parseTimeDigits(<span class="tok-str">"13"</span>., <span class="tok-number">1</span>, <span class="tok-number">12</span>));</span> <span class="line" id="L633"> <span class="tok-kw">try</span> expectError(<span class="tok-kw">error</span>.CertificateTimeInvalid, parseTimeDigits(<span class="tok-str">"00"</span>., <span class="tok-number">1</span>, <span class="tok-number">12</span>));</span> <span class="line" id="L634">}</span> <span class="line" id="L635"></span> <span class="line" id="L636"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">parseYear4</span>(text: <span class="tok-kw">const</span> [<span class="tok-number">4</span>]<span class="tok-type">u8</span>) !<span class="tok-type">u16</span> {</span> <span class="line" id="L637"> <span class="tok-kw">const</span> nnnn: <span class="tok-builtin">@Vector</span>(<span class="tok-number">4</span>, <span class="tok-type">u16</span>) = .{ text[<span class="tok-number">0</span>], text[<span class="tok-number">1</span>], text[<span class="tok-number">2</span>], text[<span class="tok-number">3</span>] };</span> <span class="line" id="L638"> <span class="tok-kw">const</span> zero: <span class="tok-builtin">@Vector</span>(<span class="tok-number">4</span>, <span class="tok-type">u16</span>) = .{ <span class="tok-str">'0'</span>, <span class="tok-str">'0'</span>, <span class="tok-str">'0'</span>, <span class="tok-str">'0'</span> };</span> <span class="line" id="L639"> <span class="tok-kw">const</span> mmmm: <span class="tok-builtin">@Vector</span>(<span class="tok-number">4</span>, <span class="tok-type">u16</span>) = .{ <span class="tok-number">1000</span>, <span class="tok-number">100</span>, <span class="tok-number">10</span>, <span class="tok-number">1</span> };</span> <span class="line" id="L640"> <span class="tok-kw">const</span> result = <span class="tok-builtin">@reduce</span>(.Add, (nnnn -% zero) % mmmm);</span> <span class="line" id="L641"> <span class="tok-kw">if</span> (result > <span class="tok-number">9999</span>) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificateTimeInvalid;</span> <span class="line" id="L642"> <span class="tok-kw">return</span> result;</span> <span class="line" id="L643">}</span> <span class="line" id="L644"></span> <span class="line" id="L645"><span class="tok-kw">test</span> parseYear4 {</span> <span class="line" id="L646"> <span class="tok-kw">const</span> expectEqual = std.testing.expectEqual;</span> <span class="line" id="L647"> <span class="tok-kw">try</span> expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, <span class="tok-number">0</span>), <span class="tok-kw">try</span> parseYear4(<span class="tok-str">"0000"</span>));</span> <span class="line" id="L648"> <span class="tok-kw">try</span> expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, <span class="tok-number">9999</span>), <span class="tok-kw">try</span> parseYear4(<span class="tok-str">"9999"</span>));</span> <span class="line" id="L649"> <span class="tok-kw">try</span> expectEqual(<span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, <span class="tok-number">1988</span>), <span class="tok-kw">try</span> parseYear4(<span class="tok-str">"1988"</span>));</span> <span class="line" id="L650"></span> <span class="line" id="L651"> <span class="tok-kw">const</span> expectError = std.testing.expectError;</span> <span class="line" id="L652"> <span class="tok-kw">try</span> expectError(<span class="tok-kw">error</span>.CertificateTimeInvalid, parseYear4(<span class="tok-str">"999b"</span>));</span> <span class="line" id="L653"> <span class="tok-kw">try</span> expectError(<span class="tok-kw">error</span>.CertificateTimeInvalid, parseYear4(<span class="tok-str">"crap"</span>));</span> <span class="line" id="L654">}</span> <span class="line" id="L655"></span> <span class="line" id="L656"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">parseAlgorithm</span>(bytes: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, element: der.Element) ParseEnumError!Algorithm {</span> <span class="line" id="L657"> <span class="tok-kw">return</span> parseEnum(Algorithm, bytes, element);</span> <span class="line" id="L658">}</span> <span class="line" id="L659"></span> <span class="line" id="L660"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">parseAlgorithmCategory</span>(bytes: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, element: der.Element) ParseEnumError!AlgorithmCategory {</span> <span class="line" id="L661"> <span class="tok-kw">return</span> parseEnum(AlgorithmCategory, bytes, element);</span> <span class="line" id="L662">}</span> <span class="line" id="L663"></span> <span class="line" id="L664"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">parseAttribute</span>(bytes: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, element: der.Element) ParseEnumError!Attribute {</span> <span class="line" id="L665"> <span class="tok-kw">return</span> parseEnum(Attribute, bytes, element);</span> <span class="line" id="L666">}</span> <span class="line" id="L667"></span> <span class="line" id="L668"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">parseNamedCurve</span>(bytes: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, element: der.Element) ParseEnumError!NamedCurve {</span> <span class="line" id="L669"> <span class="tok-kw">return</span> parseEnum(NamedCurve, bytes, element);</span> <span class="line" id="L670">}</span> <span class="line" id="L671"></span> <span class="line" id="L672"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">parseExtensionId</span>(bytes: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, element: der.Element) ParseEnumError!ExtensionId {</span> <span class="line" id="L673"> <span class="tok-kw">return</span> parseEnum(ExtensionId, bytes, element);</span> <span class="line" id="L674">}</span> <span class="line" id="L675"></span> <span class="line" id="L676"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> ParseEnumError = <span class="tok-kw">error</span>{ CertificateFieldHasWrongDataType, CertificateHasUnrecognizedObjectId };</span> <span class="line" id="L677"></span> <span class="line" id="L678"><span class="tok-kw">fn</span> <span class="tok-fn">parseEnum</span>(<span class="tok-kw">comptime</span> E: <span class="tok-type">type</span>, bytes: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, element: der.Element) ParseEnumError!E {</span> <span class="line" id="L679"> <span class="tok-kw">if</span> (element.identifier.tag != .object_identifier)</span> <span class="line" id="L680"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificateFieldHasWrongDataType;</span> <span class="line" id="L681"> <span class="tok-kw">const</span> oid_bytes = bytes[element.slice.start..element.slice.end];</span> <span class="line" id="L682"> <span class="tok-kw">return</span> E.map.get(oid_bytes) <span class="tok-kw">orelse</span> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificateHasUnrecognizedObjectId;</span> <span class="line" id="L683">}</span> <span class="line" id="L684"></span> <span class="line" id="L685"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> ParseVersionError = <span class="tok-kw">error</span>{ UnsupportedCertificateVersion, CertificateFieldHasInvalidLength };</span> <span class="line" id="L686"></span> <span class="line" id="L687"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">parseVersion</span>(bytes: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, version_elem: der.Element) ParseVersionError!Version {</span> <span class="line" id="L688"> <span class="tok-kw">if</span> (<span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@bitCast</span>(version_elem.identifier)) != <span class="tok-number">0xa0</span>)</span> <span class="line" id="L689"> <span class="tok-kw">return</span> .v1;</span> <span class="line" id="L690"></span> <span class="line" id="L691"> <span class="tok-kw">if</span> (version_elem.slice.end - version_elem.slice.start != <span class="tok-number">3</span>)</span> <span class="line" id="L692"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificateFieldHasInvalidLength;</span> <span class="line" id="L693"></span> <span class="line" id="L694"> <span class="tok-kw">const</span> encoded_version = bytes[version_elem.slice.start..version_elem.slice.end];</span> <span class="line" id="L695"></span> <span class="line" id="L696"> <span class="tok-kw">if</span> (mem.eql(<span class="tok-type">u8</span>, encoded_version, <span class="tok-str">"\x02\x01\x02"</span>)) {</span> <span class="line" id="L697"> <span class="tok-kw">return</span> .v3;</span> <span class="line" id="L698"> } <span class="tok-kw">else</span> <span class="tok-kw">if</span> (mem.eql(<span class="tok-type">u8</span>, encoded_version, <span class="tok-str">"\x02\x01\x01"</span>)) {</span> <span class="line" id="L699"> <span class="tok-kw">return</span> .v2;</span> <span class="line" id="L700"> } <span class="tok-kw">else</span> <span class="tok-kw">if</span> (mem.eql(<span class="tok-type">u8</span>, encoded_version, <span class="tok-str">"\x02\x01\x00"</span>)) {</span> <span class="line" id="L701"> <span class="tok-kw">return</span> .v1;</span> <span class="line" id="L702"> }</span> <span class="line" id="L703"></span> <span class="line" id="L704"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.UnsupportedCertificateVersion;</span> <span class="line" id="L705">}</span> <span class="line" id="L706"></span> <span class="line" id="L707"><span class="tok-kw">fn</span> <span class="tok-fn">verifyRsa</span>(</span> <span class="line" id="L708"> <span class="tok-kw">comptime</span> Hash: <span class="tok-type">type</span>,</span> <span class="line" id="L709"> message: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L710"> sig: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L711"> pub_key_algo: Parsed.PubKeyAlgo,</span> <span class="line" id="L712"> pub_key: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L713">) !<span class="tok-type">void</span> {</span> <span class="line" id="L714"> <span class="tok-kw">if</span> (pub_key_algo != .rsaEncryption) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificateSignatureAlgorithmMismatch;</span> <span class="line" id="L715"> <span class="tok-kw">const</span> pk_components = <span class="tok-kw">try</span> rsa.PublicKey.parseDer(pub_key);</span> <span class="line" id="L716"> <span class="tok-kw">const</span> exponent = pk_components.exponent;</span> <span class="line" id="L717"> <span class="tok-kw">const</span> modulus = pk_components.modulus;</span> <span class="line" id="L718"> <span class="tok-kw">if</span> (exponent.len > modulus.len) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificatePublicKeyInvalid;</span> <span class="line" id="L719"> <span class="tok-kw">if</span> (sig.len != modulus.len) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificateSignatureInvalidLength;</span> <span class="line" id="L720"></span> <span class="line" id="L721"> <span class="tok-kw">const</span> hash_der = <span class="tok-kw">switch</span> (Hash) {</span> <span class="line" id="L722"> crypto.hash.Sha1 => [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L723"> <span class="tok-number">0x30</span>, <span class="tok-number">0x21</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x09</span>, <span class="tok-number">0x06</span>, <span class="tok-number">0x05</span>, <span class="tok-number">0x2b</span>, <span class="tok-number">0x0e</span>,</span> <span class="line" id="L724"> <span class="tok-number">0x03</span>, <span class="tok-number">0x02</span>, <span class="tok-number">0x1a</span>, <span class="tok-number">0x05</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x14</span>,</span> <span class="line" id="L725"> },</span> <span class="line" id="L726"> crypto.hash.sha2.Sha224 => [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L727"> <span class="tok-number">0x30</span>, <span class="tok-number">0x2d</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x0d</span>, <span class="tok-number">0x06</span>, <span class="tok-number">0x09</span>, <span class="tok-number">0x60</span>, <span class="tok-number">0x86</span>,</span> <span class="line" id="L728"> <span class="tok-number">0x48</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x65</span>, <span class="tok-number">0x03</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x02</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x05</span>,</span> <span class="line" id="L729"> <span class="tok-number">0x00</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x1c</span>,</span> <span class="line" id="L730"> },</span> <span class="line" id="L731"> crypto.hash.sha2.Sha256 => [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L732"> <span class="tok-number">0x30</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x0d</span>, <span class="tok-number">0x06</span>, <span class="tok-number">0x09</span>, <span class="tok-number">0x60</span>, <span class="tok-number">0x86</span>,</span> <span class="line" id="L733"> <span class="tok-number">0x48</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x65</span>, <span class="tok-number">0x03</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x02</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x05</span>,</span> <span class="line" id="L734"> <span class="tok-number">0x00</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x20</span>,</span> <span class="line" id="L735"> },</span> <span class="line" id="L736"> crypto.hash.sha2.Sha384 => [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L737"> <span class="tok-number">0x30</span>, <span class="tok-number">0x41</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x0d</span>, <span class="tok-number">0x06</span>, <span class="tok-number">0x09</span>, <span class="tok-number">0x60</span>, <span class="tok-number">0x86</span>,</span> <span class="line" id="L738"> <span class="tok-number">0x48</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x65</span>, <span class="tok-number">0x03</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x02</span>, <span class="tok-number">0x02</span>, <span class="tok-number">0x05</span>,</span> <span class="line" id="L739"> <span class="tok-number">0x00</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x30</span>,</span> <span class="line" id="L740"> },</span> <span class="line" id="L741"> crypto.hash.sha2.Sha512 => [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L742"> <span class="tok-number">0x30</span>, <span class="tok-number">0x51</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x0d</span>, <span class="tok-number">0x06</span>, <span class="tok-number">0x09</span>, <span class="tok-number">0x60</span>, <span class="tok-number">0x86</span>,</span> <span class="line" id="L743"> <span class="tok-number">0x48</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x65</span>, <span class="tok-number">0x03</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x02</span>, <span class="tok-number">0x03</span>, <span class="tok-number">0x05</span>,</span> <span class="line" id="L744"> <span class="tok-number">0x00</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x40</span>,</span> <span class="line" id="L745"> },</span> <span class="line" id="L746"> <span class="tok-kw">else</span> => <span class="tok-builtin">@compileError</span>(<span class="tok-str">"unreachable"</span>),</span> <span class="line" id="L747"> };</span> <span class="line" id="L748"></span> <span class="line" id="L749"> <span class="tok-kw">var</span> msg_hashed: [Hash.digest_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L750"> Hash.hash(message, &msg_hashed, .{});</span> <span class="line" id="L751"></span> <span class="line" id="L752"> <span class="tok-kw">switch</span> (modulus.len) {</span> <span class="line" id="L753"> <span class="tok-kw">inline</span> <span class="tok-number">128</span>, <span class="tok-number">256</span>, <span class="tok-number">512</span> => \|modulus_len\| {</span> <span class="line" id="L754"> <span class="tok-kw">const</span> ps_len = modulus_len - (hash_der.len + msg_hashed.len) - <span class="tok-number">3</span>;</span> <span class="line" id="L755"> <span class="tok-kw">const</span> em: [modulus_len]<span class="tok-type">u8</span> =</span> <span class="line" id="L756"> [<span class="tok-number">2</span>]<span class="tok-type">u8</span>{ <span class="tok-number">0</span>, <span class="tok-number">1</span> } ++</span> <span class="line" id="L757"> ([<span class="tok-number">1</span>]<span class="tok-type">u8</span>{<span class="tok-number">0xff</span>} ** ps_len) ++</span> <span class="line" id="L758"> [<span class="tok-number">1</span>]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} ++</span> <span class="line" id="L759"> hash_der ++</span> <span class="line" id="L760"> msg_hashed;</span> <span class="line" id="L761"></span> <span class="line" id="L762"> <span class="tok-kw">const</span> public_key = rsa.PublicKey.fromBytes(exponent, modulus) <span class="tok-kw">catch</span> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificateSignatureInvalid;</span> <span class="line" id="L763"> <span class="tok-kw">const</span> em_dec = rsa.encrypt(modulus_len, sig[<span class="tok-number">0</span>..modulus_len]., public_key) <span class="tok-kw">catch</span> \|err\| <span class="tok-kw">switch</span> (err) {</span> <span class="line" id="L764"> <span class="tok-kw">error</span>.MessageTooLong => <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L765"> };</span> <span class="line" id="L766"></span> <span class="line" id="L767"> <span class="tok-kw">if</span> (!mem.eql(<span class="tok-type">u8</span>, &em, &em_dec)) {</span> <span class="line" id="L768"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificateSignatureInvalid;</span> <span class="line" id="L769"> }</span> <span class="line" id="L770"> },</span> <span class="line" id="L771"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L772"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificateSignatureUnsupportedBitCount;</span> <span class="line" id="L773"> },</span> <span class="line" id="L774"> }</span> <span class="line" id="L775">}</span> <span class="line" id="L776"></span> <span class="line" id="L777"><span class="tok-kw">fn</span> <span class="tok-fn">verify_ecdsa</span>(</span> <span class="line" id="L778"> <span class="tok-kw">comptime</span> Hash: <span class="tok-type">type</span>,</span> <span class="line" id="L779"> message: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L780"> encoded_sig: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L781"> pub_key_algo: Parsed.PubKeyAlgo,</span> <span class="line" id="L782"> sec1_pub_key: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L783">) !<span class="tok-type">void</span> {</span> <span class="line" id="L784"> <span class="tok-kw">const</span> sig_named_curve = <span class="tok-kw">switch</span> (pub_key_algo) {</span> <span class="line" id="L785"> .X9_62_id_ecPublicKey => \|named_curve\| named_curve,</span> <span class="line" id="L786"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificateSignatureAlgorithmMismatch,</span> <span class="line" id="L787"> };</span> <span class="line" id="L788"></span> <span class="line" id="L789"> <span class="tok-kw">switch</span> (sig_named_curve) {</span> <span class="line" id="L790"> .secp521r1 => {</span> <span class="line" id="L791"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificateSignatureNamedCurveUnsupported;</span> <span class="line" id="L792"> },</span> <span class="line" id="L793"> <span class="tok-kw">inline</span> .X9_62_prime256v1,</span> <span class="line" id="L794"> .secp384r1,</span> <span class="line" id="L795"> => \|curve\| {</span> <span class="line" id="L796"> <span class="tok-kw">const</span> Ecdsa = crypto.sign.ecdsa.Ecdsa(curve.Curve(), Hash);</span> <span class="line" id="L797"> <span class="tok-kw">const</span> sig = Ecdsa.Signature.fromDer(encoded_sig) <span class="tok-kw">catch</span> \|err\| <span class="tok-kw">switch</span> (err) {</span> <span class="line" id="L798"> <span class="tok-kw">error</span>.InvalidEncoding => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificateSignatureInvalid,</span> <span class="line" id="L799"> };</span> <span class="line" id="L800"> <span class="tok-kw">const</span> pub_key = Ecdsa.PublicKey.fromSec1(sec1_pub_key) <span class="tok-kw">catch</span> \|err\| <span class="tok-kw">switch</span> (err) {</span> <span class="line" id="L801"> <span class="tok-kw">error</span>.InvalidEncoding => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificateSignatureInvalid,</span> <span class="line" id="L802"> <span class="tok-kw">error</span>.NonCanonical => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificateSignatureInvalid,</span> <span class="line" id="L803"> <span class="tok-kw">error</span>.NotSquare => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificateSignatureInvalid,</span> <span class="line" id="L804"> };</span> <span class="line" id="L805"> sig.verify(message, pub_key) <span class="tok-kw">catch</span> \|err\| <span class="tok-kw">switch</span> (err) {</span> <span class="line" id="L806"> <span class="tok-kw">error</span>.IdentityElement => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificateSignatureInvalid,</span> <span class="line" id="L807"> <span class="tok-kw">error</span>.NonCanonical => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificateSignatureInvalid,</span> <span class="line" id="L808"> <span class="tok-kw">error</span>.SignatureVerificationFailed => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificateSignatureInvalid,</span> <span class="line" id="L809"> };</span> <span class="line" id="L810"> },</span> <span class="line" id="L811"> }</span> <span class="line" id="L812">}</span> <span class="line" id="L813"></span> <span class="line" id="L814"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"../std.zig"</span>);</span> <span class="line" id="L815"><span class="tok-kw">const</span> crypto = std.crypto;</span> <span class="line" id="L816"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L817"><span class="tok-kw">const</span> Certificate = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L818"></span> <span class="line" id="L819"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> der = <span class="tok-kw">struct</span> {</span> <span class="line" id="L820"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Class = <span class="tok-kw">enum</span>(<span class="tok-type">u2</span>) {</span> <span class="line" id="L821"> universal,</span> <span class="line" id="L822"> application,</span> <span class="line" id="L823"> context_specific,</span> <span class="line" id="L824"> private,</span> <span class="line" id="L825"> };</span> <span class="line" id="L826"></span> <span class="line" id="L827"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> PC = <span class="tok-kw">enum</span>(<span class="tok-type">u1</span>) {</span> <span class="line" id="L828"> primitive,</span> <span class="line" id="L829"> constructed,</span> <span class="line" id="L830"> };</span> <span class="line" id="L831"></span> <span class="line" id="L832"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Identifier = <span class="tok-kw">packed</span> <span class="tok-kw">struct</span>(<span class="tok-type">u8</span>) {</span> <span class="line" id="L833"> tag: Tag,</span> <span class="line" id="L834"> pc: PC,</span> <span class="line" id="L835"> class: Class,</span> <span class="line" id="L836"> };</span> <span class="line" id="L837"></span> <span class="line" id="L838"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Tag = <span class="tok-kw">enum</span>(<span class="tok-type">u5</span>) {</span> <span class="line" id="L839"> boolean = <span class="tok-number">1</span>,</span> <span class="line" id="L840"> integer = <span class="tok-number">2</span>,</span> <span class="line" id="L841"> bitstring = <span class="tok-number">3</span>,</span> <span class="line" id="L842"> octetstring = <span class="tok-number">4</span>,</span> <span class="line" id="L843"> <span class="tok-null">null</span> = <span class="tok-number">5</span>,</span> <span class="line" id="L844"> object_identifier = <span class="tok-number">6</span>,</span> <span class="line" id="L845"> sequence = <span class="tok-number">16</span>,</span> <span class="line" id="L846"> sequence_of = <span class="tok-number">17</span>,</span> <span class="line" id="L847"> utc_time = <span class="tok-number">23</span>,</span> <span class="line" id="L848"> generalized_time = <span class="tok-number">24</span>,</span> <span class="line" id="L849"> _,</span> <span class="line" id="L850"> };</span> <span class="line" id="L851"></span> <span class="line" id="L852"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Element = <span class="tok-kw">struct</span> {</span> <span class="line" id="L853"> identifier: Identifier,</span> <span class="line" id="L854"> slice: Slice,</span> <span class="line" id="L855"></span> <span class="line" id="L856"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Slice = <span class="tok-kw">struct</span> {</span> <span class="line" id="L857"> start: <span class="tok-type">u32</span>,</span> <span class="line" id="L858"> end: <span class="tok-type">u32</span>,</span> <span class="line" id="L859"></span> <span class="line" id="L860"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> empty: Slice = .{ .start = <span class="tok-number">0</span>, .end = <span class="tok-number">0</span> };</span> <span class="line" id="L861"> };</span> <span class="line" id="L862"></span> <span class="line" id="L863"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> ParseElementError = <span class="tok-kw">error</span>{CertificateFieldHasInvalidLength};</span> <span class="line" id="L864"></span> <span class="line" id="L865"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">parse</span>(bytes: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, index: <span class="tok-type">u32</span>) ParseElementError!Element {</span> <span class="line" id="L866"> <span class="tok-kw">var</span> i = index;</span> <span class="line" id="L867"> <span class="tok-kw">const</span> identifier = <span class="tok-builtin">@as</span>(Identifier, <span class="tok-builtin">@bitCast</span>(bytes[i]));</span> <span class="line" id="L868"> i += <span class="tok-number">1</span>;</span> <span class="line" id="L869"> <span class="tok-kw">const</span> size_byte = bytes[i];</span> <span class="line" id="L870"> i += <span class="tok-number">1</span>;</span> <span class="line" id="L871"> <span class="tok-kw">if</span> ((size_byte >> <span class="tok-number">7</span>) == <span class="tok-number">0</span>) {</span> <span class="line" id="L872"> <span class="tok-kw">return</span> .{</span> <span class="line" id="L873"> .identifier = identifier,</span> <span class="line" id="L874"> .slice = .{</span> <span class="line" id="L875"> .start = i,</span> <span class="line" id="L876"> .end = i + size_byte,</span> <span class="line" id="L877"> },</span> <span class="line" id="L878"> };</span> <span class="line" id="L879"> }</span> <span class="line" id="L880"></span> <span class="line" id="L881"> <span class="tok-kw">const</span> len_size = <span class="tok-builtin">@as</span>(<span class="tok-type">u7</span>, <span class="tok-builtin">@truncate</span>(size_byte));</span> <span class="line" id="L882"> <span class="tok-kw">if</span> (len_size > <span class="tok-builtin">@sizeOf</span>(<span class="tok-type">u32</span>)) {</span> <span class="line" id="L883"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificateFieldHasInvalidLength;</span> <span class="line" id="L884"> }</span> <span class="line" id="L885"></span> <span class="line" id="L886"> <span class="tok-kw">const</span> end_i = i + len_size;</span> <span class="line" id="L887"> <span class="tok-kw">var</span> long_form_size: <span class="tok-type">u32</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L888"> <span class="tok-kw">while</span> (i < end_i) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L889"> long_form_size = (long_form_size << <span class="tok-number">8</span>) \| bytes[i];</span> <span class="line" id="L890"> }</span> <span class="line" id="L891"></span> <span class="line" id="L892"> <span class="tok-kw">return</span> .{</span> <span class="line" id="L893"> .identifier = identifier,</span> <span class="line" id="L894"> .slice = .{</span> <span class="line" id="L895"> .start = i,</span> <span class="line" id="L896"> .end = i + long_form_size,</span> <span class="line" id="L897"> },</span> <span class="line" id="L898"> };</span> <span class="line" id="L899"> }</span> <span class="line" id="L900"> };</span> <span class="line" id="L901">};</span> <span class="line" id="L902"></span> <span class="line" id="L903"><span class="tok-kw">test</span> {</span> <span class="line" id="L904"> _ = Bundle;</span> <span class="line" id="L905">}</span> <span class="line" id="L906"></span> <span class="line" id="L907"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> rsa = <span class="tok-kw">struct</span> {</span> <span class="line" id="L908"> <span class="tok-kw">const</span> max_modulus_bits = <span class="tok-number">4096</span>;</span> <span class="line" id="L909"> <span class="tok-kw">const</span> Uint = std.crypto.ff.Uint(max_modulus_bits);</span> <span class="line" id="L910"> <span class="tok-kw">const</span> Modulus = std.crypto.ff.Modulus(max_modulus_bits);</span> <span class="line" id="L911"> <span class="tok-kw">const</span> Fe = Modulus.Fe;</span> <span class="line" id="L912"></span> <span class="line" id="L913"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> PSSSignature = <span class="tok-kw">struct</span> {</span> <span class="line" id="L914"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromBytes</span>(<span class="tok-kw">comptime</span> modulus_len: <span class="tok-type">usize</span>, msg: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) [modulus_len]<span class="tok-type">u8</span> {</span> <span class="line" id="L915"> <span class="tok-kw">var</span> result = [<span class="tok-number">1</span>]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} * modulus_len;</span> <span class="line" id="L916"> std.mem.copyForwards(<span class="tok-type">u8</span>, &result, msg);</span> <span class="line" id="L917"> <span class="tok-kw">return</span> result;</span> <span class="line" id="L918"> }</span> <span class="line" id="L919"></span> <span class="line" id="L920"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">verify</span>(<span class="tok-kw">comptime</span> modulus_len: <span class="tok-type">usize</span>, sig: [modulus_len]<span class="tok-type">u8</span>, msg: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, public_key: PublicKey, <span class="tok-kw">comptime</span> Hash: <span class="tok-type">type</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L921"> <span class="tok-kw">const</span> mod_bits = public_key.n.bits();</span> <span class="line" id="L922"> <span class="tok-kw">const</span> em_dec = <span class="tok-kw">try</span> encrypt(modulus_len, sig, public_key);</span> <span class="line" id="L923"></span> <span class="line" id="L924"> EMSA_PSS_VERIFY(msg, &em_dec, mod_bits - <span class="tok-number">1</span>, Hash.digest_length, Hash) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L925"> }</span> <span class="line" id="L926"></span> <span class="line" id="L927"> <span class="tok-kw">fn</span> <span class="tok-fn">EMSA_PSS_VERIFY</span>(msg: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, em: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, emBit: <span class="tok-type">usize</span>, sLen: <span class="tok-type">usize</span>, <span class="tok-kw">comptime</span> Hash: <span class="tok-type">type</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L928"> <span class="tok-comment">// 1. If the length of M is greater than the input limitation for</span> </span> <span class="line" id="L929"> <span class="tok-comment">// the hash function (2^61 - 1 octets for SHA-1), output</span> </span> <span class="line" id="L930"> <span class="tok-comment">// "inconsistent" and stop.</span> </span> <span class="line" id="L931"> <span class="tok-comment">// All the cryptographic hash functions in the standard library have a limit of >= 2^61 - 1.</span> </span> <span class="line" id="L932"> <span class="tok-comment">// Even then, this check is only there for paranoia. In the context of TLS certifcates, emBit cannot exceed 4096.</span> </span> <span class="line" id="L933"> <span class="tok-kw">if</span> (emBit >= <span class="tok-number">1</span> << <span class="tok-number">61</span>) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InvalidSignature;</span> <span class="line" id="L934"></span> <span class="line" id="L935"> <span class="tok-comment">// emLen = \ceil(emBits/8)</span> </span> <span class="line" id="L936"> <span class="tok-kw">const</span> emLen = ((emBit - <span class="tok-number">1</span>) / <span class="tok-number">8</span>) + <span class="tok-number">1</span>;</span> <span class="line" id="L937"> std.debug.assert(emLen == em.len);</span> <span class="line" id="L938"></span> <span class="line" id="L939"> <span class="tok-comment">// 2. Let mHash = Hash(M), an octet string of length hLen.</span> </span> <span class="line" id="L940"> <span class="tok-kw">var</span> mHash: [Hash.digest_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L941"> Hash.hash(msg, &mHash, .{});</span> <span class="line" id="L942"></span> <span class="line" id="L943"> <span class="tok-comment">// 3. If emLen < hLen + sLen + 2, output "inconsistent" and stop.</span> </span> <span class="line" id="L944"> <span class="tok-kw">if</span> (emLen < Hash.digest_length + sLen + <span class="tok-number">2</span>) {</span> <span class="line" id="L945"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InvalidSignature;</span> <span class="line" id="L946"> }</span> <span class="line" id="L947"></span> <span class="line" id="L948"> <span class="tok-comment">// 4. If the rightmost octet of EM does not have hexadecimal value</span> </span> <span class="line" id="L949"> <span class="tok-comment">// 0xbc, output "inconsistent" and stop.</span> </span> <span class="line" id="L950"> <span class="tok-kw">if</span> (em[em.len - <span class="tok-number">1</span>] != <span class="tok-number">0xbc</span>) {</span> <span class="line" id="L951"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InvalidSignature;</span> <span class="line" id="L952"> }</span> <span class="line" id="L953"></span> <span class="line" id="L954"> <span class="tok-comment">// 5. Let maskedDB be the leftmost emLen - hLen - 1 octets of EM,</span> </span> <span class="line" id="L955"> <span class="tok-comment">// and let H be the next hLen octets.</span> </span> <span class="line" id="L956"> <span class="tok-kw">const</span> maskedDB = em[<span class="tok-number">0</span>..(emLen - Hash.digest_length - <span class="tok-number">1</span>)];</span> <span class="line" id="L957"> <span class="tok-kw">const</span> h = em[(emLen - Hash.digest_length - <span class="tok-number">1</span>)..(emLen - <span class="tok-number">1</span>)][<span class="tok-number">0</span>..Hash.digest_length];</span> <span class="line" id="L958"></span> <span class="line" id="L959"> <span class="tok-comment">// 6. If the leftmost 8emLen - emBits bits of the leftmost octet in</span> </span> <span class="line" id="L960"> <span class="tok-comment">// maskedDB are not all equal to zero, output "inconsistent" and</span> </span> <span class="line" id="L961"> <span class="tok-comment">// stop.</span> </span> <span class="line" id="L962"> <span class="tok-kw">const</span> zero_bits = emLen * <span class="tok-number">8</span> - emBit;</span> <span class="line" id="L963"> <span class="tok-kw">var</span> mask: <span class="tok-type">u8</span> = maskedDB[<span class="tok-number">0</span>];</span> <span class="line" id="L964"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L965"> <span class="tok-kw">while</span> (i < <span class="tok-number">8</span> - zero_bits) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L966"> mask = mask >> <span class="tok-number">1</span>;</span> <span class="line" id="L967"> }</span> <span class="line" id="L968"> <span class="tok-kw">if</span> (mask != <span class="tok-number">0</span>) {</span> <span class="line" id="L969"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InvalidSignature;</span> <span class="line" id="L970"> }</span> <span class="line" id="L971"></span> <span class="line" id="L972"> <span class="tok-comment">// 7. Let dbMask = MGF(H, emLen - hLen - 1).</span> </span> <span class="line" id="L973"> <span class="tok-kw">const</span> mgf_len = emLen - Hash.digest_length - <span class="tok-number">1</span>;</span> <span class="line" id="L974"> <span class="tok-kw">var</span> mgf_out_buf: [<span class="tok-number">512</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L975"> <span class="tok-kw">if</span> (mgf_len > mgf_out_buf.len) { <span class="tok-comment">// Modulus > 4096 bits</span> </span> <span class="line" id="L976"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InvalidSignature;</span> <span class="line" id="L977"> }</span> <span class="line" id="L978"> <span class="tok-kw">var</span> mgf_out = mgf_out_buf[<span class="tok-number">0</span> .. ((mgf_len - <span class="tok-number">1</span>) / Hash.digest_length + <span class="tok-number">1</span>) * Hash.digest_length];</span> <span class="line" id="L979"> <span class="tok-kw">var</span> dbMask = <span class="tok-kw">try</span> MGF1(Hash, mgf_out, h, mgf_len);</span> <span class="line" id="L980"></span> <span class="line" id="L981"> <span class="tok-comment">// 8. Let DB = maskedDB \xor dbMask.</span> </span> <span class="line" id="L982"> i = <span class="tok-number">0</span>;</span> <span class="line" id="L983"> <span class="tok-kw">while</span> (i < dbMask.len) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L984"> dbMask[i] = maskedDB[i] ^ dbMask[i];</span> <span class="line" id="L985"> }</span> <span class="line" id="L986"></span> <span class="line" id="L987"> <span class="tok-comment">// 9. Set the leftmost 8emLen - emBits bits of the leftmost octet</span> </span> <span class="line" id="L988"> <span class="tok-comment">// in DB to zero.</span> </span> <span class="line" id="L989"> i = <span class="tok-number">0</span>;</span> <span class="line" id="L990"> mask = <span class="tok-number">0</span>;</span> <span class="line" id="L991"> <span class="tok-kw">while</span> (i < <span class="tok-number">8</span> - zero_bits) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L992"> mask = mask << <span class="tok-number">1</span>;</span> <span class="line" id="L993"> mask += <span class="tok-number">1</span>;</span> <span class="line" id="L994"> }</span> <span class="line" id="L995"> dbMask[<span class="tok-number">0</span>] = dbMask[<span class="tok-number">0</span>] & mask;</span> <span class="line" id="L996"></span> <span class="line" id="L997"> <span class="tok-comment">// 10. If the emLen - hLen - sLen - 2 leftmost octets of DB are not</span> </span> <span class="line" id="L998"> <span class="tok-comment">// zero or if the octet at position emLen - hLen - sLen - 1 (the</span> </span> <span class="line" id="L999"> <span class="tok-comment">// leftmost position is "position 1") does not have hexadecimal</span> </span> <span class="line" id="L1000"> <span class="tok-comment">// value 0x01, output "inconsistent" and stop.</span> </span> <span class="line" id="L1001"> <span class="tok-kw">if</span> (dbMask[mgf_len - sLen - <span class="tok-number">2</span>] != <span class="tok-number">0x00</span>) {</span> <span class="line" id="L1002"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InvalidSignature;</span> <span class="line" id="L1003"> }</span> <span class="line" id="L1004"></span> <span class="line" id="L1005"> <span class="tok-kw">if</span> (dbMask[mgf_len - sLen - <span class="tok-number">1</span>] != <span class="tok-number">0x01</span>) {</span> <span class="line" id="L1006"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InvalidSignature;</span> <span class="line" id="L1007"> }</span> <span class="line" id="L1008"></span> <span class="line" id="L1009"> <span class="tok-comment">// 11. Let salt be the last sLen octets of DB.</span> </span> <span class="line" id="L1010"> <span class="tok-kw">const</span> salt = dbMask[(mgf_len - sLen)..];</span> <span class="line" id="L1011"></span> <span class="line" id="L1012"> <span class="tok-comment">// 12. Let</span> </span> <span class="line" id="L1013"> <span class="tok-comment">// M' = (0x)00 00 00 00 00 00 00 00 \|\| mHash \|\| salt ;</span> </span> <span class="line" id="L1014"> <span class="tok-comment">// M' is an octet string of length 8 + hLen + sLen with eight</span> </span> <span class="line" id="L1015"> <span class="tok-comment">// initial zero octets.</span> </span> <span class="line" id="L1016"> <span class="tok-kw">if</span> (sLen > Hash.digest_length) { <span class="tok-comment">// A seed larger than the hash length would be useless</span> </span> <span class="line" id="L1017"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InvalidSignature;</span> <span class="line" id="L1018"> }</span> <span class="line" id="L1019"> <span class="tok-kw">var</span> m_p_buf: [<span class="tok-number">8</span> + Hash.digest_length + Hash.digest_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1020"> <span class="tok-kw">var</span> m_p = m_p_buf[<span class="tok-number">0</span> .. <span class="tok-number">8</span> + Hash.digest_length + sLen];</span> <span class="line" id="L1021"> std.mem.copyForwards(<span class="tok-type">u8</span>, m_p, &([_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} ** <span class="tok-number">8</span>));</span> <span class="line" id="L1022"> std.mem.copyForwards(<span class="tok-type">u8</span>, m_p[<span class="tok-number">8</span>..], &mHash);</span> <span class="line" id="L1023"> std.mem.copyForwards(<span class="tok-type">u8</span>, m_p[(<span class="tok-number">8</span> + Hash.digest_length)..], salt);</span> <span class="line" id="L1024"></span> <span class="line" id="L1025"> <span class="tok-comment">// 13. Let H' = Hash(M'), an octet string of length hLen.</span> </span> <span class="line" id="L1026"> <span class="tok-kw">var</span> h_p: [Hash.digest_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1027"> Hash.hash(m_p, &h_p, .{});</span> <span class="line" id="L1028"></span> <span class="line" id="L1029"> <span class="tok-comment">// 14. If H = H', output "consistent". Otherwise, output</span> </span> <span class="line" id="L1030"> <span class="tok-comment">// "inconsistent".</span> </span> <span class="line" id="L1031"> <span class="tok-kw">if</span> (!std.mem.eql(<span class="tok-type">u8</span>, h, &h_p)) {</span> <span class="line" id="L1032"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InvalidSignature;</span> <span class="line" id="L1033"> }</span> <span class="line" id="L1034"> }</span> <span class="line" id="L1035"></span> <span class="line" id="L1036"> <span class="tok-kw">fn</span> <span class="tok-fn">MGF1</span>(<span class="tok-kw">comptime</span> Hash: <span class="tok-type">type</span>, out: []<span class="tok-type">u8</span>, seed: *<span class="tok-kw">const</span> [Hash.digest_length]<span class="tok-type">u8</span>, len: <span class="tok-type">usize</span>) ![]<span class="tok-type">u8</span> {</span> <span class="line" id="L1037"> <span class="tok-kw">var</span> counter: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L1038"> <span class="tok-kw">var</span> idx: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L1039"> <span class="tok-kw">var</span> c: [<span class="tok-number">4</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1040"> <span class="tok-kw">var</span> hash: [Hash.digest_length + c.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1041"> <span class="tok-builtin">@memcpy</span>(hash[<span class="tok-number">0</span>..Hash.digest_length], seed);</span> <span class="line" id="L1042"> <span class="tok-kw">var</span> hashed: [Hash.digest_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1043"></span> <span class="line" id="L1044"> <span class="tok-kw">while</span> (idx < len) {</span> <span class="line" id="L1045"> c[<span class="tok-number">0</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>((counter >> <span class="tok-number">24</span>) & <span class="tok-number">0xFF</span>));</span> <span class="line" id="L1046"> c[<span class="tok-number">1</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>((counter >> <span class="tok-number">16</span>) & <span class="tok-number">0xFF</span>));</span> <span class="line" id="L1047"> c[<span class="tok-number">2</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>((counter >> <span class="tok-number">8</span>) & <span class="tok-number">0xFF</span>));</span> <span class="line" id="L1048"> c[<span class="tok-number">3</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>(counter & <span class="tok-number">0xFF</span>));</span> <span class="line" id="L1049"></span> <span class="line" id="L1050"> std.mem.copyForwards(<span class="tok-type">u8</span>, hash[seed.len..], &c);</span> <span class="line" id="L1051"> Hash.hash(&hash, &hashed, .{});</span> <span class="line" id="L1052"></span> <span class="line" id="L1053"> std.mem.copyForwards(<span class="tok-type">u8</span>, out[idx..], &hashed);</span> <span class="line" id="L1054"> idx += hashed.len;</span> <span class="line" id="L1055"></span> <span class="line" id="L1056"> counter += <span class="tok-number">1</span>;</span> <span class="line" id="L1057"> }</span> <span class="line" id="L1058"></span> <span class="line" id="L1059"> <span class="tok-kw">return</span> out[<span class="tok-number">0</span>..len];</span> <span class="line" id="L1060"> }</span> <span class="line" id="L1061"> };</span> <span class="line" id="L1062"></span> <span class="line" id="L1063"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> PublicKey = <span class="tok-kw">struct</span> {</span> <span class="line" id="L1064"> n: Modulus,</span> <span class="line" id="L1065"> e: Fe,</span> <span class="line" id="L1066"></span> <span class="line" id="L1067"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromBytes</span>(pub_bytes: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, modulus_bytes: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) !PublicKey {</span> <span class="line" id="L1068"> <span class="tok-comment">// Reject modulus below 512 bits.</span> </span> <span class="line" id="L1069"> <span class="tok-comment">// 512-bit RSA was factored in 1999, so this limit barely means anything,</span> </span> <span class="line" id="L1070"> <span class="tok-comment">// but establish some limit now to ratchet in what we can.</span> </span> <span class="line" id="L1071"> <span class="tok-kw">const</span> _n = Modulus.fromBytes(modulus_bytes, .Big) <span class="tok-kw">catch</span> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificatePublicKeyInvalid;</span> <span class="line" id="L1072"> <span class="tok-kw">if</span> (_n.bits() < <span class="tok-number">512</span>) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificatePublicKeyInvalid;</span> <span class="line" id="L1073"></span> <span class="line" id="L1074"> <span class="tok-comment">// Exponent must be odd and greater than 2.</span> </span> <span class="line" id="L1075"> <span class="tok-comment">// Also, it must be less than 2^32 to mitigate DoS attacks.</span> </span> <span class="line" id="L1076"> <span class="tok-comment">// Windows CryptoAPI doesn't support values larger than 32 bits [1], so it is</span> </span> <span class="line" id="L1077"> <span class="tok-comment">// unlikely that exponents larger than 32 bits are being used for anything</span> </span> <span class="line" id="L1078"> <span class="tok-comment">// Windows commonly does.</span> </span> <span class="line" id="L1079"> <span class="tok-comment">// [1] https://learn.microsoft.com/en-us/windows/win32/api/wincrypt/ns-wincrypt-rsapubkey</span> </span> <span class="line" id="L1080"> <span class="tok-kw">if</span> (pub_bytes.len > <span class="tok-number">4</span>) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificatePublicKeyInvalid;</span> <span class="line" id="L1081"> <span class="tok-kw">const</span> _e = Fe.fromBytes(_n, pub_bytes, .Big) <span class="tok-kw">catch</span> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificatePublicKeyInvalid;</span> <span class="line" id="L1082"> <span class="tok-kw">if</span> (!_e.isOdd()) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificatePublicKeyInvalid;</span> <span class="line" id="L1083"> <span class="tok-kw">const</span> e_v = _e.toPrimitive(<span class="tok-type">u32</span>) <span class="tok-kw">catch</span> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificatePublicKeyInvalid;</span> <span class="line" id="L1084"> <span class="tok-kw">if</span> (e_v < <span class="tok-number">2</span>) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificatePublicKeyInvalid;</span> <span class="line" id="L1085"></span> <span class="line" id="L1086"> <span class="tok-kw">return</span> .{</span> <span class="line" id="L1087"> .n = _n,</span> <span class="line" id="L1088"> .e = _e,</span> <span class="line" id="L1089"> };</span> <span class="line" id="L1090"> }</span> <span class="line" id="L1091"></span> <span class="line" id="L1092"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">parseDer</span>(pub_key: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) !<span class="tok-kw">struct</span> { modulus: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, exponent: []<span class="tok-kw">const</span> <span class="tok-type">u8</span> } {</span> <span class="line" id="L1093"> <span class="tok-kw">const</span> pub_key_seq = <span class="tok-kw">try</span> der.Element.parse(pub_key, <span class="tok-number">0</span>);</span> <span class="line" id="L1094"> <span class="tok-kw">if</span> (pub_key_seq.identifier.tag != .sequence) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificateFieldHasWrongDataType;</span> <span class="line" id="L1095"> <span class="tok-kw">const</span> modulus_elem = <span class="tok-kw">try</span> der.Element.parse(pub_key, pub_key_seq.slice.start);</span> <span class="line" id="L1096"> <span class="tok-kw">if</span> (modulus_elem.identifier.tag != .integer) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificateFieldHasWrongDataType;</span> <span class="line" id="L1097"> <span class="tok-kw">const</span> exponent_elem = <span class="tok-kw">try</span> der.Element.parse(pub_key, modulus_elem.slice.end);</span> <span class="line" id="L1098"> <span class="tok-kw">if</span> (exponent_elem.identifier.tag != .integer) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificateFieldHasWrongDataType;</span> <span class="line" id="L1099"> <span class="tok-comment">// Skip over meaningless zeroes in the modulus.</span> </span> <span class="line" id="L1100"> <span class="tok-kw">const</span> modulus_raw = pub_key[modulus_elem.slice.start..modulus_elem.slice.end];</span> <span class="line" id="L1101"> <span class="tok-kw">const</span> modulus_offset = <span class="tok-kw">for</span> (modulus_raw, <span class="tok-number">0</span>..) \|byte, i\| {</span> <span class="line" id="L1102"> <span class="tok-kw">if</span> (byte != <span class="tok-number">0</span>) <span class="tok-kw">break</span> i;</span> <span class="line" id="L1103"> } <span class="tok-kw">else</span> modulus_raw.len;</span> <span class="line" id="L1104"> <span class="tok-kw">return</span> .{</span> <span class="line" id="L1105"> .modulus = modulus_raw[modulus_offset..],</span> <span class="line" id="L1106"> .exponent = pub_key[exponent_elem.slice.start..exponent_elem.slice.end],</span> <span class="line" id="L1107"> };</span> <span class="line" id="L1108"> }</span> <span class="line" id="L1109"> };</span> <span class="line" id="L1110"></span> <span class="line" id="L1111"> <span class="tok-kw">fn</span> <span class="tok-fn">encrypt</span>(<span class="tok-kw">comptime</span> modulus_len: <span class="tok-type">usize</span>, msg: [modulus_len]<span class="tok-type">u8</span>, public_key: PublicKey) ![modulus_len]<span class="tok-type">u8</span> {</span> <span class="line" id="L1112"> <span class="tok-kw">const</span> m = Fe.fromBytes(public_key.n, &msg, .Big) <span class="tok-kw">catch</span> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.MessageTooLong;</span> <span class="line" id="L1113"> <span class="tok-kw">const</span> e = public_key.n.powPublic(m, public_key.e) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L1114"> <span class="tok-kw">var</span> res: [modulus_len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1115"> e.toBytes(&res, .Big) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L1116"> <span class="tok-kw">return</span> res;</span> <span class="line" id="L1117"> }</span> <span class="line" id="L1118">};</span> <span class="line" id="L1119"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/crypto/errors.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/errors.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-comment">/// MAC verification failed - The tag doesn't verify for the given ciphertext and secret key</span></span> <span class="line" id="L2"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> AuthenticationError = <span class="tok-kw">error</span>{AuthenticationFailed};</span> <span class="line" id="L3"></span> <span class="line" id="L4"><span class="tok-comment">/// The requested output length is too long for the chosen algorithm</span></span> <span class="line" id="L5"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> OutputTooLongError = <span class="tok-kw">error</span>{OutputTooLong};</span> <span class="line" id="L6"></span> <span class="line" id="L7"><span class="tok-comment">/// Finite field operation returned the identity element</span></span> <span class="line" id="L8"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> IdentityElementError = <span class="tok-kw">error</span>{IdentityElement};</span> <span class="line" id="L9"></span> <span class="line" id="L10"><span class="tok-comment">/// Encoded input cannot be decoded</span></span> <span class="line" id="L11"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> EncodingError = <span class="tok-kw">error</span>{InvalidEncoding};</span> <span class="line" id="L12"></span> <span class="line" id="L13"><span class="tok-comment">/// The signature doesn't verify for the given message and public key</span></span> <span class="line" id="L14"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> SignatureVerificationError = <span class="tok-kw">error</span>{SignatureVerificationFailed};</span> <span class="line" id="L15"></span> <span class="line" id="L16"><span class="tok-comment">/// Both a public and secret key have been provided, but they are incompatible</span></span> <span class="line" id="L17"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> KeyMismatchError = <span class="tok-kw">error</span>{KeyMismatch};</span> <span class="line" id="L18"></span> <span class="line" id="L19"><span class="tok-comment">/// Encoded input is not in canonical form</span></span> <span class="line" id="L20"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> NonCanonicalError = <span class="tok-kw">error</span>{NonCanonical};</span> <span class="line" id="L21"></span> <span class="line" id="L22"><span class="tok-comment">/// Square root has no solutions</span></span> <span class="line" id="L23"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> NotSquareError = <span class="tok-kw">error</span>{NotSquare};</span> <span class="line" id="L24"></span> <span class="line" id="L25"><span class="tok-comment">/// Verification string doesn't match the provided password and parameters</span></span> <span class="line" id="L26"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> PasswordVerificationError = <span class="tok-kw">error</span>{PasswordVerificationFailed};</span> <span class="line" id="L27"></span> <span class="line" id="L28"><span class="tok-comment">/// Parameters would be insecure to use</span></span> <span class="line" id="L29"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> WeakParametersError = <span class="tok-kw">error</span>{WeakParameters};</span> <span class="line" id="L30"></span> <span class="line" id="L31"><span class="tok-comment">/// Public key would be insecure to use</span></span> <span class="line" id="L32"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> WeakPublicKeyError = <span class="tok-kw">error</span>{WeakPublicKey};</span> <span class="line" id="L33"></span> <span class="line" id="L34"><span class="tok-comment">/// Any error related to cryptography operations</span></span> <span class="line" id="L35"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Error = AuthenticationError \|\| OutputTooLongError \|\| IdentityElementError \|\| EncodingError \|\| SignatureVerificationError \|\| KeyMismatchError \|\| NonCanonicalError \|\| NotSquareError \|\| PasswordVerificationError \|\| WeakParametersError \|\| WeakPublicKeyError;</span> <span class="line" id="L36"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/crypto/isap.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/isap.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> crypto = std.crypto;</span> <span class="line" id="L3"><span class="tok-kw">const</span> debug = std.debug;</span> <span class="line" id="L4"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L5"><span class="tok-kw">const</span> math = std.math;</span> <span class="line" id="L6"><span class="tok-kw">const</span> testing = std.testing;</span> <span class="line" id="L7"><span class="tok-kw">const</span> Ascon = crypto.core.Ascon(.Big);</span> <span class="line" id="L8"><span class="tok-kw">const</span> AuthenticationError = crypto.errors.AuthenticationError;</span> <span class="line" id="L9"></span> <span class="line" id="L10"><span class="tok-comment">/// ISAPv2 is an authenticated encryption system hardened against side channels and fault attacks.</span></span> <span class="line" id="L11"><span class="tok-comment">/// https://csrc.nist.gov/CSRC/media/Projects/lightweight-cryptography/documents/round-2/spec-doc-rnd2/isap-spec-round2.pdf</span></span> <span class="line" id="L12"><span class="tok-comment">///</span></span> <span class="line" id="L13"><span class="tok-comment">/// Note that ISAP is not suitable for high-performance applications.</span></span> <span class="line" id="L14"><span class="tok-comment">///</span></span> <span class="line" id="L15"><span class="tok-comment">/// However:</span></span> <span class="line" id="L16"><span class="tok-comment">/// - if allowing physical access to the device is part of your threat model,</span></span> <span class="line" id="L17"><span class="tok-comment">/// - or if you need resistance against microcode/hardware-level side channel attacks,</span></span> <span class="line" id="L18"><span class="tok-comment">/// - or if software-induced fault attacks such as rowhammer are a concern,</span></span> <span class="line" id="L19"><span class="tok-comment">///</span></span> <span class="line" id="L20"><span class="tok-comment">/// then you may consider ISAP for highly sensitive data.</span></span> <span class="line" id="L21"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> IsapA128A = <span class="tok-kw">struct</span> {</span> <span class="line" id="L22"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> key_length = <span class="tok-number">16</span>;</span> <span class="line" id="L23"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> nonce_length = <span class="tok-number">16</span>;</span> <span class="line" id="L24"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> tag_length: <span class="tok-type">usize</span> = <span class="tok-number">16</span>;</span> <span class="line" id="L25"></span> <span class="line" id="L26"> <span class="tok-kw">const</span> iv1 = [_]<span class="tok-type">u8</span>{ <span class="tok-number">0x01</span>, <span class="tok-number">0x80</span>, <span class="tok-number">0x40</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x0c</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x06</span>, <span class="tok-number">0x0c</span> };</span> <span class="line" id="L27"> <span class="tok-kw">const</span> iv2 = [_]<span class="tok-type">u8</span>{ <span class="tok-number">0x02</span>, <span class="tok-number">0x80</span>, <span class="tok-number">0x40</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x0c</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x06</span>, <span class="tok-number">0x0c</span> };</span> <span class="line" id="L28"> <span class="tok-kw">const</span> iv3 = [_]<span class="tok-type">u8</span>{ <span class="tok-number">0x03</span>, <span class="tok-number">0x80</span>, <span class="tok-number">0x40</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x0c</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x06</span>, <span class="tok-number">0x0c</span> };</span> <span class="line" id="L29"></span> <span class="line" id="L30"> st: Ascon,</span> <span class="line" id="L31"></span> <span class="line" id="L32"> <span class="tok-kw">fn</span> <span class="tok-fn">absorb</span>(isap: IsapA128A, m: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L33"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L34"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) : (i += <span class="tok-number">8</span>) {</span> <span class="line" id="L35"> <span class="tok-kw">const</span> left = m.len - i;</span> <span class="line" id="L36"> <span class="tok-kw">if</span> (left >= <span class="tok-number">8</span>) {</span> <span class="line" id="L37"> isap.st.addBytes(m[i..][<span class="tok-number">0</span>..<span class="tok-number">8</span>]);</span> <span class="line" id="L38"> isap.st.permute();</span> <span class="line" id="L39"> <span class="tok-kw">if</span> (left == <span class="tok-number">8</span>) {</span> <span class="line" id="L40"> isap.st.addByte(<span class="tok-number">0x80</span>, <span class="tok-number">0</span>);</span> <span class="line" id="L41"> isap.st.permute();</span> <span class="line" id="L42"> <span class="tok-kw">break</span>;</span> <span class="line" id="L43"> }</span> <span class="line" id="L44"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L45"> <span class="tok-kw">var</span> padded = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} * <span class="tok-number">8</span>;</span> <span class="line" id="L46"> <span class="tok-builtin">@memcpy</span>(padded[<span class="tok-number">0</span>..left], m[i..]);</span> <span class="line" id="L47"> padded[left] = <span class="tok-number">0x80</span>;</span> <span class="line" id="L48"> isap.st.addBytes(&padded);</span> <span class="line" id="L49"> isap.st.permute();</span> <span class="line" id="L50"> <span class="tok-kw">break</span>;</span> <span class="line" id="L51"> }</span> <span class="line" id="L52"> }</span> <span class="line" id="L53"> }</span> <span class="line" id="L54"></span> <span class="line" id="L55"> <span class="tok-kw">fn</span> <span class="tok-fn">trickle</span>(k: [<span class="tok-number">16</span>]<span class="tok-type">u8</span>, iv: [<span class="tok-number">8</span>]<span class="tok-type">u8</span>, y: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, <span class="tok-kw">comptime</span> out_len: <span class="tok-type">usize</span>) [out_len]<span class="tok-type">u8</span> {</span> <span class="line" id="L56"> <span class="tok-kw">var</span> isap = IsapA128A{</span> <span class="line" id="L57"> .st = Ascon.initFromWords(.{</span> <span class="line" id="L58"> mem.readIntBig(<span class="tok-type">u64</span>, k[<span class="tok-number">0</span>..<span class="tok-number">8</span>]),</span> <span class="line" id="L59"> mem.readIntBig(<span class="tok-type">u64</span>, k[<span class="tok-number">8</span>..<span class="tok-number">16</span>]),</span> <span class="line" id="L60"> mem.readIntBig(<span class="tok-type">u64</span>, iv[<span class="tok-number">0</span>..<span class="tok-number">8</span>]),</span> <span class="line" id="L61"> <span class="tok-number">0</span>,</span> <span class="line" id="L62"> <span class="tok-number">0</span>,</span> <span class="line" id="L63"> }),</span> <span class="line" id="L64"> };</span> <span class="line" id="L65"> isap.st.permute();</span> <span class="line" id="L66"></span> <span class="line" id="L67"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L68"> <span class="tok-kw">while</span> (i < y.len * <span class="tok-number">8</span> - <span class="tok-number">1</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L69"> <span class="tok-kw">const</span> cur_byte_pos = i / <span class="tok-number">8</span>;</span> <span class="line" id="L70"> <span class="tok-kw">const</span> cur_bit_pos = <span class="tok-builtin">@as</span>(<span class="tok-type">u3</span>, <span class="tok-builtin">@truncate</span>(<span class="tok-number">7</span> - (i % <span class="tok-number">8</span>)));</span> <span class="line" id="L71"> <span class="tok-kw">const</span> cur_bit = ((y[cur_byte_pos] >> cur_bit_pos) & <span class="tok-number">1</span>) << <span class="tok-number">7</span>;</span> <span class="line" id="L72"> isap.st.addByte(cur_bit, <span class="tok-number">0</span>);</span> <span class="line" id="L73"> isap.st.permuteR(<span class="tok-number">1</span>);</span> <span class="line" id="L74"> }</span> <span class="line" id="L75"> <span class="tok-kw">const</span> cur_bit = (y[y.len - <span class="tok-number">1</span>] & <span class="tok-number">1</span>) << <span class="tok-number">7</span>;</span> <span class="line" id="L76"> isap.st.addByte(cur_bit, <span class="tok-number">0</span>);</span> <span class="line" id="L77"> isap.st.permute();</span> <span class="line" id="L78"></span> <span class="line" id="L79"> <span class="tok-kw">var</span> out: [out_len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L80"> isap.st.extractBytes(&out);</span> <span class="line" id="L81"> isap.st.secureZero();</span> <span class="line" id="L82"> <span class="tok-kw">return</span> out;</span> <span class="line" id="L83"> }</span> <span class="line" id="L84"></span> <span class="line" id="L85"> <span class="tok-kw">fn</span> <span class="tok-fn">mac</span>(c: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, ad: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, npub: [<span class="tok-number">16</span>]<span class="tok-type">u8</span>, key: [<span class="tok-number">16</span>]<span class="tok-type">u8</span>) [<span class="tok-number">16</span>]<span class="tok-type">u8</span> {</span> <span class="line" id="L86"> <span class="tok-kw">var</span> isap = IsapA128A{</span> <span class="line" id="L87"> .st = Ascon.initFromWords(.{</span> <span class="line" id="L88"> mem.readIntBig(<span class="tok-type">u64</span>, npub[<span class="tok-number">0</span>..<span class="tok-number">8</span>]),</span> <span class="line" id="L89"> mem.readIntBig(<span class="tok-type">u64</span>, npub[<span class="tok-number">8</span>..<span class="tok-number">16</span>]),</span> <span class="line" id="L90"> mem.readIntBig(<span class="tok-type">u64</span>, iv1[<span class="tok-number">0</span>..]),</span> <span class="line" id="L91"> <span class="tok-number">0</span>,</span> <span class="line" id="L92"> <span class="tok-number">0</span>,</span> <span class="line" id="L93"> }),</span> <span class="line" id="L94"> };</span> <span class="line" id="L95"> isap.st.permute();</span> <span class="line" id="L96"></span> <span class="line" id="L97"> isap.absorb(ad);</span> <span class="line" id="L98"> isap.st.addByte(<span class="tok-number">1</span>, Ascon.block_bytes - <span class="tok-number">1</span>);</span> <span class="line" id="L99"> isap.absorb(c);</span> <span class="line" id="L100"></span> <span class="line" id="L101"> <span class="tok-kw">var</span> y: [<span class="tok-number">16</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L102"> isap.st.extractBytes(&y);</span> <span class="line" id="L103"> <span class="tok-kw">const</span> nb = trickle(key, iv2, y[<span class="tok-number">0</span>..], <span class="tok-number">16</span>);</span> <span class="line" id="L104"> isap.st.setBytes(&nb);</span> <span class="line" id="L105"> isap.st.permute();</span> <span class="line" id="L106"></span> <span class="line" id="L107"> <span class="tok-kw">var</span> tag: [<span class="tok-number">16</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L108"> isap.st.extractBytes(&tag);</span> <span class="line" id="L109"> isap.st.secureZero();</span> <span class="line" id="L110"> <span class="tok-kw">return</span> tag;</span> <span class="line" id="L111"> }</span> <span class="line" id="L112"></span> <span class="line" id="L113"> <span class="tok-kw">fn</span> <span class="tok-fn">xor</span>(out: []<span class="tok-type">u8</span>, in: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, npub: [<span class="tok-number">16</span>]<span class="tok-type">u8</span>, key: [<span class="tok-number">16</span>]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L114"> debug.assert(in.len == out.len);</span> <span class="line" id="L115"></span> <span class="line" id="L116"> <span class="tok-kw">const</span> nb = trickle(key, iv3, npub[<span class="tok-number">0</span>..], <span class="tok-number">24</span>);</span> <span class="line" id="L117"> <span class="tok-kw">var</span> isap = IsapA128A{</span> <span class="line" id="L118"> .st = Ascon.initFromWords(.{</span> <span class="line" id="L119"> mem.readIntBig(<span class="tok-type">u64</span>, nb[<span class="tok-number">0</span>..<span class="tok-number">8</span>]),</span> <span class="line" id="L120"> mem.readIntBig(<span class="tok-type">u64</span>, nb[<span class="tok-number">8</span>..<span class="tok-number">16</span>]),</span> <span class="line" id="L121"> mem.readIntBig(<span class="tok-type">u64</span>, nb[<span class="tok-number">16</span>..<span class="tok-number">24</span>]),</span> <span class="line" id="L122"> mem.readIntBig(<span class="tok-type">u64</span>, npub[<span class="tok-number">0</span>..<span class="tok-number">8</span>]),</span> <span class="line" id="L123"> mem.readIntBig(<span class="tok-type">u64</span>, npub[<span class="tok-number">8</span>..<span class="tok-number">16</span>]),</span> <span class="line" id="L124"> }),</span> <span class="line" id="L125"> };</span> <span class="line" id="L126"> isap.st.permuteR(<span class="tok-number">6</span>);</span> <span class="line" id="L127"></span> <span class="line" id="L128"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L129"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) : (i += <span class="tok-number">8</span>) {</span> <span class="line" id="L130"> <span class="tok-kw">const</span> left = in.len - i;</span> <span class="line" id="L131"> <span class="tok-kw">if</span> (left >= <span class="tok-number">8</span>) {</span> <span class="line" id="L132"> isap.st.xorBytes(out[i..][<span class="tok-number">0</span>..<span class="tok-number">8</span>], in[i..][<span class="tok-number">0</span>..<span class="tok-number">8</span>]);</span> <span class="line" id="L133"> <span class="tok-kw">if</span> (left == <span class="tok-number">8</span>) {</span> <span class="line" id="L134"> <span class="tok-kw">break</span>;</span> <span class="line" id="L135"> }</span> <span class="line" id="L136"> isap.st.permuteR(<span class="tok-number">6</span>);</span> <span class="line" id="L137"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L138"> isap.st.xorBytes(out[i..], in[i..]);</span> <span class="line" id="L139"> <span class="tok-kw">break</span>;</span> <span class="line" id="L140"> }</span> <span class="line" id="L141"> }</span> <span class="line" id="L142"> isap.st.secureZero();</span> <span class="line" id="L143"> }</span> <span class="line" id="L144"></span> <span class="line" id="L145"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">encrypt</span>(c: []<span class="tok-type">u8</span>, tag: [tag_length]<span class="tok-type">u8</span>, m: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, ad: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, npub: [nonce_length]<span class="tok-type">u8</span>, key: [key_length]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L146"> xor(c, m, npub, key);</span> <span class="line" id="L147"> tag. = mac(c, ad, npub, key);</span> <span class="line" id="L148"> }</span> <span class="line" id="L149"></span> <span class="line" id="L150"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">decrypt</span>(m: []<span class="tok-type">u8</span>, c: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, tag: [tag_length]<span class="tok-type">u8</span>, ad: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, npub: [nonce_length]<span class="tok-type">u8</span>, key: [key_length]<span class="tok-type">u8</span>) AuthenticationError!<span class="tok-type">void</span> {</span> <span class="line" id="L151"> <span class="tok-kw">var</span> computed_tag = mac(c, ad, npub, key);</span> <span class="line" id="L152"> <span class="tok-kw">const</span> res = crypto.utils.timingSafeEql([tag_length]<span class="tok-type">u8</span>, computed_tag, tag);</span> <span class="line" id="L153"> crypto.utils.secureZero(<span class="tok-type">u8</span>, &computed_tag);</span> <span class="line" id="L154"> <span class="tok-kw">if</span> (!res) {</span> <span class="line" id="L155"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.AuthenticationFailed;</span> <span class="line" id="L156"> }</span> <span class="line" id="L157"> xor(m, c, npub, key);</span> <span class="line" id="L158"> }</span> <span class="line" id="L159">};</span> <span class="line" id="L160"></span> <span class="line" id="L161"><span class="tok-kw">test</span> <span class="tok-str">"ISAP"</span> {</span> <span class="line" id="L162"> <span class="tok-kw">const</span> k = [_]<span class="tok-type">u8</span>{<span class="tok-number">1</span>} <span class="tok-number">16</span>;</span> <span class="line" id="L163"> <span class="tok-kw">const</span> n = [_]<span class="tok-type">u8</span>{<span class="tok-number">2</span>} <span class="tok-number">16</span>;</span> <span class="line" id="L164"> <span class="tok-kw">var</span> tag: [<span class="tok-number">16</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L165"> <span class="tok-kw">const</span> ad = <span class="tok-str">"ad"</span>;</span> <span class="line" id="L166"> <span class="tok-kw">var</span> msg = <span class="tok-str">"test"</span>;</span> <span class="line" id="L167"> <span class="tok-kw">var</span> c: [msg.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L168"> IsapA128A.encrypt(c[<span class="tok-number">0</span>..], &tag, msg[<span class="tok-number">0</span>..], ad, n, k);</span> <span class="line" id="L169"> <span class="tok-kw">try</span> testing.expect(mem.eql(<span class="tok-type">u8</span>, &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x8f</span>, <span class="tok-number">0x68</span>, <span class="tok-number">0x03</span>, <span class="tok-number">0x8d</span> }, c[<span class="tok-number">0</span>..]));</span> <span class="line" id="L170"> <span class="tok-kw">try</span> testing.expect(mem.eql(<span class="tok-type">u8</span>, &[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x6c</span>, <span class="tok-number">0x25</span>, <span class="tok-number">0xe8</span>, <span class="tok-number">0xe2</span>, <span class="tok-number">0xe1</span>, <span class="tok-number">0x1f</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0xe9</span>, <span class="tok-number">0x80</span>, <span class="tok-number">0x75</span>, <span class="tok-number">0xde</span>, <span class="tok-number">0xd5</span>, <span class="tok-number">0x2d</span>, <span class="tok-number">0xb2</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0x82</span> }, tag[<span class="tok-number">0</span>..]));</span> <span class="line" id="L171"> <span class="tok-kw">try</span> IsapA128A.decrypt(c[<span class="tok-number">0</span>..], c[<span class="tok-number">0</span>..], tag, ad, n, k);</span> <span class="line" id="L172"> <span class="tok-kw">try</span> testing.expect(mem.eql(<span class="tok-type">u8</span>, msg, c[<span class="tok-number">0</span>..]));</span> <span class="line" id="L173">}</span> <span class="line" id="L174"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/crypto/ascon.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/ascon.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-comment">//! Ascon is a 320-bit permutation, selected as new standard for lightweight cryptography</span></span> <span class="line" id="L2"><span class="tok-comment">//! in the NIST Lightweight Cryptography competition (2019–2023).</span></span> <span class="line" id="L3"><span class="tok-comment">//! https://csrc.nist.gov/News/2023/lightweight-cryptography-nist-selects-ascon</span></span> <span class="line" id="L4"><span class="tok-comment">//!</span></span> <span class="line" id="L5"><span class="tok-comment">//! The permutation is compact, and optimized for timing and side channel resistance,</span></span> <span class="line" id="L6"><span class="tok-comment">//! making it a good choice for embedded applications.</span></span> <span class="line" id="L7"><span class="tok-comment">//!</span></span> <span class="line" id="L8"><span class="tok-comment">//! It is not meant to be used directly, but as a building block for symmetric cryptography.</span></span> <span class="line" id="L9"></span> <span class="line" id="L10"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L11"><span class="tok-kw">const</span> builtin = std.builtin;</span> <span class="line" id="L12"><span class="tok-kw">const</span> debug = std.debug;</span> <span class="line" id="L13"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L14"><span class="tok-kw">const</span> testing = std.testing;</span> <span class="line" id="L15"><span class="tok-kw">const</span> rotr = std.math.rotr;</span> <span class="line" id="L16"></span> <span class="line" id="L17"><span class="tok-comment">/// An Ascon state.</span></span> <span class="line" id="L18"><span class="tok-comment">///</span></span> <span class="line" id="L19"><span class="tok-comment">/// The state is represented as 5 64-bit words.</span></span> <span class="line" id="L20"><span class="tok-comment">///</span></span> <span class="line" id="L21"><span class="tok-comment">/// The NIST submission (v1.2) serializes these words as big-endian,</span></span> <span class="line" id="L22"><span class="tok-comment">/// but software implementations are free to use native endianness.</span></span> <span class="line" id="L23"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">State</span>(<span class="tok-kw">comptime</span> endian: builtin.Endian) <span class="tok-type">type</span> {</span> <span class="line" id="L24"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L25"> <span class="tok-kw">const</span> Self = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L26"></span> <span class="line" id="L27"> <span class="tok-comment">/// Number of bytes in the state.</span></span> <span class="line" id="L28"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> block_bytes = <span class="tok-number">40</span>;</span> <span class="line" id="L29"></span> <span class="line" id="L30"> <span class="tok-kw">const</span> Block = [<span class="tok-number">5</span>]<span class="tok-type">u64</span>;</span> <span class="line" id="L31"></span> <span class="line" id="L32"> st: Block,</span> <span class="line" id="L33"></span> <span class="line" id="L34"> <span class="tok-comment">/// Initialize the state from a slice of bytes.</span></span> <span class="line" id="L35"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">init</span>(initial_state: [block_bytes]<span class="tok-type">u8</span>) Self {</span> <span class="line" id="L36"> <span class="tok-kw">var</span> state = Self{ .st = <span class="tok-null">undefined</span> };</span> <span class="line" id="L37"> <span class="tok-builtin">@memcpy</span>(state.asBytes(), &initial_state);</span> <span class="line" id="L38"> state.endianSwap();</span> <span class="line" id="L39"> <span class="tok-kw">return</span> state;</span> <span class="line" id="L40"> }</span> <span class="line" id="L41"></span> <span class="line" id="L42"> <span class="tok-comment">/// Initialize the state from u64 words in native endianness.</span></span> <span class="line" id="L43"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">initFromWords</span>(initial_state: [<span class="tok-number">5</span>]<span class="tok-type">u64</span>) Self {</span> <span class="line" id="L44"> <span class="tok-kw">var</span> state = Self{ .st = initial_state };</span> <span class="line" id="L45"> <span class="tok-kw">return</span> state;</span> <span class="line" id="L46"> }</span> <span class="line" id="L47"></span> <span class="line" id="L48"> <span class="tok-comment">/// Initialize the state for Ascon XOF</span></span> <span class="line" id="L49"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">initXof</span>() Self {</span> <span class="line" id="L50"> <span class="tok-kw">return</span> Self{ .st = Block{</span> <span class="line" id="L51"> <span class="tok-number">0xb57e273b814cd416</span>,</span> <span class="line" id="L52"> <span class="tok-number">0x2b51042562ae2420</span>,</span> <span class="line" id="L53"> <span class="tok-number">0x66a3a7768ddf2218</span>,</span> <span class="line" id="L54"> <span class="tok-number">0x5aad0a7a8153650c</span>,</span> <span class="line" id="L55"> <span class="tok-number">0x4f3e0e32539493b6</span>,</span> <span class="line" id="L56"> } };</span> <span class="line" id="L57"> }</span> <span class="line" id="L58"></span> <span class="line" id="L59"> <span class="tok-comment">/// Initialize the state for Ascon XOFa</span></span> <span class="line" id="L60"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">initXofA</span>() Self {</span> <span class="line" id="L61"> <span class="tok-kw">return</span> Self{ .st = Block{</span> <span class="line" id="L62"> <span class="tok-number">0x44906568b77b9832</span>,</span> <span class="line" id="L63"> <span class="tok-number">0xcd8d6cae53455532</span>,</span> <span class="line" id="L64"> <span class="tok-number">0xf7b5212756422129</span>,</span> <span class="line" id="L65"> <span class="tok-number">0x246885e1de0d225b</span>,</span> <span class="line" id="L66"> <span class="tok-number">0xa8cb5ce33449973f</span>,</span> <span class="line" id="L67"> } };</span> <span class="line" id="L68"> }</span> <span class="line" id="L69"></span> <span class="line" id="L70"> <span class="tok-comment">/// A representation of the state as bytes. The byte order is architecture-dependent.</span></span> <span class="line" id="L71"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">asBytes</span>(self: Self) [block_bytes]<span class="tok-type">u8</span> {</span> <span class="line" id="L72"> <span class="tok-kw">return</span> mem.asBytes(&self.st);</span> <span class="line" id="L73"> }</span> <span class="line" id="L74"></span> <span class="line" id="L75"> <span class="tok-comment">/// Byte-swap the entire state if the architecture doesn't match the required endianness.</span></span> <span class="line" id="L76"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">endianSwap</span>(self: Self) <span class="tok-type">void</span> {</span> <span class="line" id="L77"> <span class="tok-kw">for</span> (&self.st) \|w\| {</span> <span class="line" id="L78"> w.* = mem.toNative(<span class="tok-type">u64</span>, w., endian);</span> <span class="line" id="L79"> }</span> <span class="line" id="L80"> }</span> <span class="line" id="L81"></span> <span class="line" id="L82"> <span class="tok-comment">/// Set bytes starting at the beginning of the state.</span></span> <span class="line" id="L83"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">setBytes</span>(self: Self, bytes: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L84"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L85"> <span class="tok-kw">while</span> (i + <span class="tok-number">8</span> <= bytes.len) : (i += <span class="tok-number">8</span>) {</span> <span class="line" id="L86"> self.st[i / <span class="tok-number">8</span>] = mem.readInt(<span class="tok-type">u64</span>, bytes[i..][<span class="tok-number">0</span>..<span class="tok-number">8</span>], endian);</span> <span class="line" id="L87"> }</span> <span class="line" id="L88"> <span class="tok-kw">if</span> (i < bytes.len) {</span> <span class="line" id="L89"> <span class="tok-kw">var</span> padded = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} ** <span class="tok-number">8</span>;</span> <span class="line" id="L90"> <span class="tok-builtin">@memcpy</span>(padded[<span class="tok-number">0</span> .. bytes.len - i], bytes[i..]);</span> <span class="line" id="L91"> self.st[i / <span class="tok-number">8</span>] = mem.readInt(<span class="tok-type">u64</span>, padded[<span class="tok-number">0</span>..], endian);</span> <span class="line" id="L92"> }</span> <span class="line" id="L93"> }</span> <span class="line" id="L94"></span> <span class="line" id="L95"> <span class="tok-comment">/// XOR a byte into the state at a given offset.</span></span> <span class="line" id="L96"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">addByte</span>(self: Self, byte: <span class="tok-type">u8</span>, offset: <span class="tok-type">usize</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L97"> <span class="tok-kw">const</span> z = <span class="tok-kw">switch</span> (endian) {</span> <span class="line" id="L98"> .Big => <span class="tok-number">64</span> - <span class="tok-number">8</span> - <span class="tok-number">8</span> <span class="tok-builtin">@as</span>(<span class="tok-type">u6</span>, <span class="tok-builtin">@truncate</span>(offset % <span class="tok-number">8</span>)),</span> <span class="line" id="L99"> .Little => <span class="tok-number">8</span> * <span class="tok-builtin">@as</span>(<span class="tok-type">u6</span>, <span class="tok-builtin">@truncate</span>(offset % <span class="tok-number">8</span>)),</span> <span class="line" id="L100"> };</span> <span class="line" id="L101"> self.st[offset / <span class="tok-number">8</span>] ^= <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, byte) << z;</span> <span class="line" id="L102"> }</span> <span class="line" id="L103"></span> <span class="line" id="L104"> <span class="tok-comment">/// XOR bytes into the beginning of the state.</span></span> <span class="line" id="L105"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">addBytes</span>(self: Self, bytes: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L106"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L107"> <span class="tok-kw">while</span> (i + <span class="tok-number">8</span> <= bytes.len) : (i += <span class="tok-number">8</span>) {</span> <span class="line" id="L108"> self.st[i / <span class="tok-number">8</span>] ^= mem.readInt(<span class="tok-type">u64</span>, bytes[i..][<span class="tok-number">0</span>..<span class="tok-number">8</span>], endian);</span> <span class="line" id="L109"> }</span> <span class="line" id="L110"> <span class="tok-kw">if</span> (i < bytes.len) {</span> <span class="line" id="L111"> <span class="tok-kw">var</span> padded = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} * <span class="tok-number">8</span>;</span> <span class="line" id="L112"> <span class="tok-builtin">@memcpy</span>(padded[<span class="tok-number">0</span> .. bytes.len - i], bytes[i..]);</span> <span class="line" id="L113"> self.st[i / <span class="tok-number">8</span>] ^= mem.readInt(<span class="tok-type">u64</span>, padded[<span class="tok-number">0</span>..], endian);</span> <span class="line" id="L114"> }</span> <span class="line" id="L115"> }</span> <span class="line" id="L116"></span> <span class="line" id="L117"> <span class="tok-comment">/// Extract the first bytes of the state.</span></span> <span class="line" id="L118"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">extractBytes</span>(self: Self, out: []<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L119"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L120"> <span class="tok-kw">while</span> (i + <span class="tok-number">8</span> <= out.len) : (i += <span class="tok-number">8</span>) {</span> <span class="line" id="L121"> mem.writeInt(<span class="tok-type">u64</span>, out[i..][<span class="tok-number">0</span>..<span class="tok-number">8</span>], self.st[i / <span class="tok-number">8</span>], endian);</span> <span class="line" id="L122"> }</span> <span class="line" id="L123"> <span class="tok-kw">if</span> (i < out.len) {</span> <span class="line" id="L124"> <span class="tok-kw">var</span> padded = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} * <span class="tok-number">8</span>;</span> <span class="line" id="L125"> mem.writeInt(<span class="tok-type">u64</span>, padded[<span class="tok-number">0</span>..], self.st[i / <span class="tok-number">8</span>], endian);</span> <span class="line" id="L126"> <span class="tok-builtin">@memcpy</span>(out[i..], padded[<span class="tok-number">0</span> .. out.len - i]);</span> <span class="line" id="L127"> }</span> <span class="line" id="L128"> }</span> <span class="line" id="L129"></span> <span class="line" id="L130"> <span class="tok-comment">/// XOR the first bytes of the state into a slice of bytes.</span></span> <span class="line" id="L131"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">xorBytes</span>(self: Self, out: []<span class="tok-type">u8</span>, in: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L132"> debug.assert(out.len == in.len);</span> <span class="line" id="L133"></span> <span class="line" id="L134"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L135"> <span class="tok-kw">while</span> (i + <span class="tok-number">8</span> <= in.len) : (i += <span class="tok-number">8</span>) {</span> <span class="line" id="L136"> <span class="tok-kw">const</span> x = mem.readIntNative(<span class="tok-type">u64</span>, in[i..][<span class="tok-number">0</span>..<span class="tok-number">8</span>]) ^ mem.nativeTo(<span class="tok-type">u64</span>, self.st[i / <span class="tok-number">8</span>], endian);</span> <span class="line" id="L137"> mem.writeIntNative(<span class="tok-type">u64</span>, out[i..][<span class="tok-number">0</span>..<span class="tok-number">8</span>], x);</span> <span class="line" id="L138"> }</span> <span class="line" id="L139"> <span class="tok-kw">if</span> (i < in.len) {</span> <span class="line" id="L140"> <span class="tok-kw">var</span> padded = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} * <span class="tok-number">8</span>;</span> <span class="line" id="L141"> <span class="tok-builtin">@memcpy</span>(padded[<span class="tok-number">0</span> .. in.len - i], in[i..]);</span> <span class="line" id="L142"> <span class="tok-kw">const</span> x = mem.readIntNative(<span class="tok-type">u64</span>, &padded) ^ mem.nativeTo(<span class="tok-type">u64</span>, self.st[i / <span class="tok-number">8</span>], endian);</span> <span class="line" id="L143"> mem.writeIntNative(<span class="tok-type">u64</span>, &padded, x);</span> <span class="line" id="L144"> <span class="tok-builtin">@memcpy</span>(out[i..], padded[<span class="tok-number">0</span> .. in.len - i]);</span> <span class="line" id="L145"> }</span> <span class="line" id="L146"> }</span> <span class="line" id="L147"></span> <span class="line" id="L148"> <span class="tok-comment">/// Set the words storing the bytes of a given range to zero.</span></span> <span class="line" id="L149"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">clear</span>(self: Self, from: <span class="tok-type">usize</span>, to: <span class="tok-type">usize</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L150"> <span class="tok-builtin">@memset</span>(self.st[from / <span class="tok-number">8</span> .. (to + <span class="tok-number">7</span>) / <span class="tok-number">8</span>], <span class="tok-number">0</span>);</span> <span class="line" id="L151"> }</span> <span class="line" id="L152"></span> <span class="line" id="L153"> <span class="tok-comment">/// Clear the entire state, disabling compiler optimizations.</span></span> <span class="line" id="L154"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">secureZero</span>(self: Self) <span class="tok-type">void</span> {</span> <span class="line" id="L155"> std.crypto.utils.secureZero(<span class="tok-type">u64</span>, &self.st);</span> <span class="line" id="L156"> }</span> <span class="line" id="L157"></span> <span class="line" id="L158"> <span class="tok-comment">/// Apply a reduced-round permutation to the state.</span></span> <span class="line" id="L159"> <span class="tok-kw">pub</span> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">permuteR</span>(state: Self, <span class="tok-kw">comptime</span> rounds: <span class="tok-type">u4</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L160"> <span class="tok-kw">const</span> rks = [<span class="tok-number">12</span>]<span class="tok-type">u64</span>{ <span class="tok-number">0xf0</span>, <span class="tok-number">0xe1</span>, <span class="tok-number">0xd2</span>, <span class="tok-number">0xc3</span>, <span class="tok-number">0xb4</span>, <span class="tok-number">0xa5</span>, <span class="tok-number">0x96</span>, <span class="tok-number">0x87</span>, <span class="tok-number">0x78</span>, <span class="tok-number">0x69</span>, <span class="tok-number">0x5a</span>, <span class="tok-number">0x4b</span> };</span> <span class="line" id="L161"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (rks[rks.len - rounds ..]) \|rk\| {</span> <span class="line" id="L162"> state.round(rk);</span> <span class="line" id="L163"> }</span> <span class="line" id="L164"> }</span> <span class="line" id="L165"></span> <span class="line" id="L166"> <span class="tok-comment">/// Apply a full-round permutation to the state.</span></span> <span class="line" id="L167"> <span class="tok-kw">pub</span> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">permute</span>(state: Self) <span class="tok-type">void</span> {</span> <span class="line" id="L168"> state.permuteR(<span class="tok-number">12</span>);</span> <span class="line" id="L169"> }</span> <span class="line" id="L170"></span> <span class="line" id="L171"> <span class="tok-comment">/// Apply a permutation to the state and prevent backtracking.</span></span> <span class="line" id="L172"> <span class="tok-comment">/// The rate is expressed in bytes and must be a multiple of the word size (8).</span></span> <span class="line" id="L173"> <span class="tok-kw">pub</span> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">permuteRatchet</span>(state: Self, <span class="tok-kw">comptime</span> rounds: <span class="tok-type">u4</span>, <span class="tok-kw">comptime</span> rate: <span class="tok-type">u6</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L174"> <span class="tok-kw">const</span> capacity = block_bytes - rate;</span> <span class="line" id="L175"> debug.assert(capacity > <span class="tok-number">0</span> <span class="tok-kw">and</span> capacity % <span class="tok-number">8</span> == <span class="tok-number">0</span>); <span class="tok-comment">// capacity must be a multiple of 64 bits</span> </span> <span class="line" id="L176"> <span class="tok-kw">var</span> mask: [capacity / <span class="tok-number">8</span>]<span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L177"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (&mask, state.st[state.st.len - mask.len ..]) \|m, x\| m.* = x;</span> <span class="line" id="L178"> state.permuteR(rounds);</span> <span class="line" id="L179"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (mask, state.st[state.st.len - mask.len ..]) \|m, x\| x. ^= m;</span> <span class="line" id="L180"> }</span> <span class="line" id="L181"></span> <span class="line" id="L182"> <span class="tok-comment">// Core Ascon permutation.</span> </span> <span class="line" id="L183"> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">round</span>(state: Self, rk: <span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L184"> <span class="tok-kw">const</span> x = &state.st;</span> <span class="line" id="L185"> x[<span class="tok-number">2</span>] ^= rk;</span> <span class="line" id="L186"></span> <span class="line" id="L187"> x[<span class="tok-number">0</span>] ^= x[<span class="tok-number">4</span>];</span> <span class="line" id="L188"> x[<span class="tok-number">4</span>] ^= x[<span class="tok-number">3</span>];</span> <span class="line" id="L189"> x[<span class="tok-number">2</span>] ^= x[<span class="tok-number">1</span>];</span> <span class="line" id="L190"> <span class="tok-kw">var</span> t: Block = .{</span> <span class="line" id="L191"> x[<span class="tok-number">0</span>] ^ (~x[<span class="tok-number">1</span>] & x[<span class="tok-number">2</span>]),</span> <span class="line" id="L192"> x[<span class="tok-number">1</span>] ^ (~x[<span class="tok-number">2</span>] & x[<span class="tok-number">3</span>]),</span> <span class="line" id="L193"> x[<span class="tok-number">2</span>] ^ (~x[<span class="tok-number">3</span>] & x[<span class="tok-number">4</span>]),</span> <span class="line" id="L194"> x[<span class="tok-number">3</span>] ^ (~x[<span class="tok-number">4</span>] & x[<span class="tok-number">0</span>]),</span> <span class="line" id="L195"> x[<span class="tok-number">4</span>] ^ (~x[<span class="tok-number">0</span>] & x[<span class="tok-number">1</span>]),</span> <span class="line" id="L196"> };</span> <span class="line" id="L197"> t[<span class="tok-number">1</span>] ^= t[<span class="tok-number">0</span>];</span> <span class="line" id="L198"> t[<span class="tok-number">3</span>] ^= t[<span class="tok-number">2</span>];</span> <span class="line" id="L199"> t[<span class="tok-number">0</span>] ^= t[<span class="tok-number">4</span>];</span> <span class="line" id="L200"></span> <span class="line" id="L201"> x[<span class="tok-number">2</span>] = t[<span class="tok-number">2</span>] ^ rotr(<span class="tok-type">u64</span>, t[<span class="tok-number">2</span>], <span class="tok-number">6</span> - <span class="tok-number">1</span>);</span> <span class="line" id="L202"> x[<span class="tok-number">3</span>] = t[<span class="tok-number">3</span>] ^ rotr(<span class="tok-type">u64</span>, t[<span class="tok-number">3</span>], <span class="tok-number">17</span> - <span class="tok-number">10</span>);</span> <span class="line" id="L203"> x[<span class="tok-number">4</span>] = t[<span class="tok-number">4</span>] ^ rotr(<span class="tok-type">u64</span>, t[<span class="tok-number">4</span>], <span class="tok-number">41</span> - <span class="tok-number">7</span>);</span> <span class="line" id="L204"> x[<span class="tok-number">0</span>] = t[<span class="tok-number">0</span>] ^ rotr(<span class="tok-type">u64</span>, t[<span class="tok-number">0</span>], <span class="tok-number">28</span> - <span class="tok-number">19</span>);</span> <span class="line" id="L205"> x[<span class="tok-number">1</span>] = t[<span class="tok-number">1</span>] ^ rotr(<span class="tok-type">u64</span>, t[<span class="tok-number">1</span>], <span class="tok-number">61</span> - <span class="tok-number">39</span>);</span> <span class="line" id="L206"> x[<span class="tok-number">2</span>] = t[<span class="tok-number">2</span>] ^ rotr(<span class="tok-type">u64</span>, x[<span class="tok-number">2</span>], <span class="tok-number">1</span>);</span> <span class="line" id="L207"> x[<span class="tok-number">3</span>] = t[<span class="tok-number">3</span>] ^ rotr(<span class="tok-type">u64</span>, x[<span class="tok-number">3</span>], <span class="tok-number">10</span>);</span> <span class="line" id="L208"> x[<span class="tok-number">4</span>] = t[<span class="tok-number">4</span>] ^ rotr(<span class="tok-type">u64</span>, x[<span class="tok-number">4</span>], <span class="tok-number">7</span>);</span> <span class="line" id="L209"> x[<span class="tok-number">0</span>] = t[<span class="tok-number">0</span>] ^ rotr(<span class="tok-type">u64</span>, x[<span class="tok-number">0</span>], <span class="tok-number">19</span>);</span> <span class="line" id="L210"> x[<span class="tok-number">1</span>] = t[<span class="tok-number">1</span>] ^ rotr(<span class="tok-type">u64</span>, x[<span class="tok-number">1</span>], <span class="tok-number">39</span>);</span> <span class="line" id="L211"> x[<span class="tok-number">2</span>] = ~x[<span class="tok-number">2</span>];</span> <span class="line" id="L212"> }</span> <span class="line" id="L213"> };</span> <span class="line" id="L214">}</span> <span class="line" id="L215"></span> <span class="line" id="L216"><span class="tok-kw">test</span> <span class="tok-str">"ascon"</span> {</span> <span class="line" id="L217"> <span class="tok-kw">const</span> Ascon = State(.Big);</span> <span class="line" id="L218"> <span class="tok-kw">const</span> bytes = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x01</span>} * Ascon.block_bytes;</span> <span class="line" id="L219"> <span class="tok-kw">var</span> st = Ascon.init(bytes);</span> <span class="line" id="L220"> <span class="tok-kw">var</span> out: [Ascon.block_bytes]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L221"> st.permute();</span> <span class="line" id="L222"> st.extractBytes(&out);</span> <span class="line" id="L223"> <span class="tok-kw">const</span> expected1 = [_]<span class="tok-type">u8</span>{ <span class="tok-number">148</span>, <span class="tok-number">147</span>, <span class="tok-number">49</span>, <span class="tok-number">226</span>, <span class="tok-number">218</span>, <span class="tok-number">221</span>, <span class="tok-number">208</span>, <span class="tok-number">113</span>, <span class="tok-number">186</span>, <span class="tok-number">94</span>, <span class="tok-number">96</span>, <span class="tok-number">10</span>, <span class="tok-number">183</span>, <span class="tok-number">219</span>, <span class="tok-number">119</span>, <span class="tok-number">150</span>, <span class="tok-number">169</span>, <span class="tok-number">206</span>, <span class="tok-number">65</span>, <span class="tok-number">18</span>, <span class="tok-number">215</span>, <span class="tok-number">97</span>, <span class="tok-number">78</span>, <span class="tok-number">106</span>, <span class="tok-number">118</span>, <span class="tok-number">81</span>, <span class="tok-number">211</span>, <span class="tok-number">150</span>, <span class="tok-number">52</span>, <span class="tok-number">17</span>, <span class="tok-number">117</span>, <span class="tok-number">64</span>, <span class="tok-number">216</span>, <span class="tok-number">45</span>, <span class="tok-number">148</span>, <span class="tok-number">240</span>, <span class="tok-number">65</span>, <span class="tok-number">181</span>, <span class="tok-number">90</span>, <span class="tok-number">180</span> };</span> <span class="line" id="L224"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, &expected1, &out);</span> <span class="line" id="L225"> st.clear(<span class="tok-number">0</span>, <span class="tok-number">10</span>);</span> <span class="line" id="L226"> st.extractBytes(&out);</span> <span class="line" id="L227"> <span class="tok-kw">const</span> expected2 = [_]<span class="tok-type">u8</span>{ <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">169</span>, <span class="tok-number">206</span>, <span class="tok-number">65</span>, <span class="tok-number">18</span>, <span class="tok-number">215</span>, <span class="tok-number">97</span>, <span class="tok-number">78</span>, <span class="tok-number">106</span>, <span class="tok-number">118</span>, <span class="tok-number">81</span>, <span class="tok-number">211</span>, <span class="tok-number">150</span>, <span class="tok-number">52</span>, <span class="tok-number">17</span>, <span class="tok-number">117</span>, <span class="tok-number">64</span>, <span class="tok-number">216</span>, <span class="tok-number">45</span>, <span class="tok-number">148</span>, <span class="tok-number">240</span>, <span class="tok-number">65</span>, <span class="tok-number">181</span>, <span class="tok-number">90</span>, <span class="tok-number">180</span> };</span> <span class="line" id="L228"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, &expected2, &out);</span> <span class="line" id="L229"> st.addByte(<span class="tok-number">1</span>, <span class="tok-number">5</span>);</span> <span class="line" id="L230"> st.addByte(<span class="tok-number">2</span>, <span class="tok-number">5</span>);</span> <span class="line" id="L231"> st.extractBytes(&out);</span> <span class="line" id="L232"> <span class="tok-kw">const</span> expected3 = [_]<span class="tok-type">u8</span>{ <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">169</span>, <span class="tok-number">206</span>, <span class="tok-number">65</span>, <span class="tok-number">18</span>, <span class="tok-number">215</span>, <span class="tok-number">97</span>, <span class="tok-number">78</span>, <span class="tok-number">106</span>, <span class="tok-number">118</span>, <span class="tok-number">81</span>, <span class="tok-number">211</span>, <span class="tok-number">150</span>, <span class="tok-number">52</span>, <span class="tok-number">17</span>, <span class="tok-number">117</span>, <span class="tok-number">64</span>, <span class="tok-number">216</span>, <span class="tok-number">45</span>, <span class="tok-number">148</span>, <span class="tok-number">240</span>, <span class="tok-number">65</span>, <span class="tok-number">181</span>, <span class="tok-number">90</span>, <span class="tok-number">180</span> };</span> <span class="line" id="L233"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, &expected3, &out);</span> <span class="line" id="L234"> st.addBytes(&bytes);</span> <span class="line" id="L235"> st.extractBytes(&out);</span> <span class="line" id="L236"> <span class="tok-kw">const</span> expected4 = [_]<span class="tok-type">u8</span>{ <span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">168</span>, <span class="tok-number">207</span>, <span class="tok-number">64</span>, <span class="tok-number">19</span>, <span class="tok-number">214</span>, <span class="tok-number">96</span>, <span class="tok-number">79</span>, <span class="tok-number">107</span>, <span class="tok-number">119</span>, <span class="tok-number">80</span>, <span class="tok-number">210</span>, <span class="tok-number">151</span>, <span class="tok-number">53</span>, <span class="tok-number">16</span>, <span class="tok-number">116</span>, <span class="tok-number">65</span>, <span class="tok-number">217</span>, <span class="tok-number">44</span>, <span class="tok-number">149</span>, <span class="tok-number">241</span>, <span class="tok-number">64</span>, <span class="tok-number">180</span>, <span class="tok-number">91</span>, <span class="tok-number">181</span> };</span> <span class="line" id="L237"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, &expected4, &out);</span> <span class="line" id="L238">}</span> <span class="line" id="L239"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/crypto/ecdsa.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/ecdsa.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> builtin = <span class="tok-builtin">@import</span>(<span class="tok-str">"builtin"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L3"><span class="tok-kw">const</span> crypto = std.crypto;</span> <span class="line" id="L4"><span class="tok-kw">const</span> fmt = std.fmt;</span> <span class="line" id="L5"><span class="tok-kw">const</span> io = std.io;</span> <span class="line" id="L6"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L7"><span class="tok-kw">const</span> testing = std.testing;</span> <span class="line" id="L8"></span> <span class="line" id="L9"><span class="tok-kw">const</span> EncodingError = crypto.errors.EncodingError;</span> <span class="line" id="L10"><span class="tok-kw">const</span> IdentityElementError = crypto.errors.IdentityElementError;</span> <span class="line" id="L11"><span class="tok-kw">const</span> NonCanonicalError = crypto.errors.NonCanonicalError;</span> <span class="line" id="L12"><span class="tok-kw">const</span> SignatureVerificationError = crypto.errors.SignatureVerificationError;</span> <span class="line" id="L13"></span> <span class="line" id="L14"><span class="tok-comment">/// ECDSA over P-256 with SHA-256.</span></span> <span class="line" id="L15"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> EcdsaP256Sha256 = Ecdsa(crypto.ecc.P256, crypto.hash.sha2.Sha256);</span> <span class="line" id="L16"><span class="tok-comment">/// ECDSA over P-256 with SHA3-256.</span></span> <span class="line" id="L17"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> EcdsaP256Sha3_256 = Ecdsa(crypto.ecc.P256, crypto.hash.sha3.Sha3_256);</span> <span class="line" id="L18"><span class="tok-comment">/// ECDSA over P-384 with SHA-384.</span></span> <span class="line" id="L19"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> EcdsaP384Sha384 = Ecdsa(crypto.ecc.P384, crypto.hash.sha2.Sha384);</span> <span class="line" id="L20"><span class="tok-comment">/// ECDSA over P-384 with SHA3-384.</span></span> <span class="line" id="L21"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> EcdsaP256Sha3_384 = Ecdsa(crypto.ecc.P384, crypto.hash.sha3.Sha3_384);</span> <span class="line" id="L22"><span class="tok-comment">/// ECDSA over Secp256k1 with SHA-256.</span></span> <span class="line" id="L23"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> EcdsaSecp256k1Sha256 = Ecdsa(crypto.ecc.Secp256k1, crypto.hash.sha2.Sha256);</span> <span class="line" id="L24"><span class="tok-comment">/// ECDSA over Secp256k1 with SHA-256(SHA-256()) -- The Bitcoin signature system.</span></span> <span class="line" id="L25"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> EcdsaSecp256k1Sha256oSha256 = Ecdsa(crypto.ecc.Secp256k1, crypto.hash.composition.Sha256oSha256);</span> <span class="line" id="L26"></span> <span class="line" id="L27"><span class="tok-comment">/// Elliptic Curve Digital Signature Algorithm (ECDSA).</span></span> <span class="line" id="L28"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">Ecdsa</span>(<span class="tok-kw">comptime</span> Curve: <span class="tok-type">type</span>, <span class="tok-kw">comptime</span> Hash: <span class="tok-type">type</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L29"> <span class="tok-kw">const</span> Hmac = crypto.auth.hmac.Hmac(Hash);</span> <span class="line" id="L30"></span> <span class="line" id="L31"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L32"> <span class="tok-comment">/// Length (in bytes) of optional random bytes, for non-deterministic signatures.</span></span> <span class="line" id="L33"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> noise_length = Curve.scalar.encoded_length;</span> <span class="line" id="L34"></span> <span class="line" id="L35"> <span class="tok-comment">/// An ECDSA secret key.</span></span> <span class="line" id="L36"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> SecretKey = <span class="tok-kw">struct</span> {</span> <span class="line" id="L37"> <span class="tok-comment">/// Length (in bytes) of a raw secret key.</span></span> <span class="line" id="L38"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> encoded_length = Curve.scalar.encoded_length;</span> <span class="line" id="L39"></span> <span class="line" id="L40"> bytes: Curve.scalar.CompressedScalar,</span> <span class="line" id="L41"></span> <span class="line" id="L42"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromBytes</span>(bytes: [encoded_length]<span class="tok-type">u8</span>) !SecretKey {</span> <span class="line" id="L43"> <span class="tok-kw">return</span> SecretKey{ .bytes = bytes };</span> <span class="line" id="L44"> }</span> <span class="line" id="L45"></span> <span class="line" id="L46"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toBytes</span>(sk: SecretKey) [encoded_length]<span class="tok-type">u8</span> {</span> <span class="line" id="L47"> <span class="tok-kw">return</span> sk.bytes;</span> <span class="line" id="L48"> }</span> <span class="line" id="L49"> };</span> <span class="line" id="L50"></span> <span class="line" id="L51"> <span class="tok-comment">/// An ECDSA public key.</span></span> <span class="line" id="L52"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> PublicKey = <span class="tok-kw">struct</span> {</span> <span class="line" id="L53"> <span class="tok-comment">/// Length (in bytes) of a compressed sec1-encoded key.</span></span> <span class="line" id="L54"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> compressed_sec1_encoded_length = <span class="tok-number">1</span> + Curve.Fe.encoded_length;</span> <span class="line" id="L55"> <span class="tok-comment">/// Length (in bytes) of a compressed sec1-encoded key.</span></span> <span class="line" id="L56"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> uncompressed_sec1_encoded_length = <span class="tok-number">1</span> + <span class="tok-number">2</span> * Curve.Fe.encoded_length;</span> <span class="line" id="L57"></span> <span class="line" id="L58"> p: Curve,</span> <span class="line" id="L59"></span> <span class="line" id="L60"> <span class="tok-comment">/// Create a public key from a SEC-1 representation.</span></span> <span class="line" id="L61"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromSec1</span>(sec1: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) !PublicKey {</span> <span class="line" id="L62"> <span class="tok-kw">return</span> PublicKey{ .p = <span class="tok-kw">try</span> Curve.fromSec1(sec1) };</span> <span class="line" id="L63"> }</span> <span class="line" id="L64"></span> <span class="line" id="L65"> <span class="tok-comment">/// Encode the public key using the compressed SEC-1 format.</span></span> <span class="line" id="L66"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toCompressedSec1</span>(pk: PublicKey) [compressed_sec1_encoded_length]<span class="tok-type">u8</span> {</span> <span class="line" id="L67"> <span class="tok-kw">return</span> pk.p.toCompressedSec1();</span> <span class="line" id="L68"> }</span> <span class="line" id="L69"></span> <span class="line" id="L70"> <span class="tok-comment">/// Encoding the public key using the uncompressed SEC-1 format.</span></span> <span class="line" id="L71"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toUncompressedSec1</span>(pk: PublicKey) [uncompressed_sec1_encoded_length]<span class="tok-type">u8</span> {</span> <span class="line" id="L72"> <span class="tok-kw">return</span> pk.p.toUncompressedSec1();</span> <span class="line" id="L73"> }</span> <span class="line" id="L74"> };</span> <span class="line" id="L75"></span> <span class="line" id="L76"> <span class="tok-comment">/// An ECDSA signature.</span></span> <span class="line" id="L77"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Signature = <span class="tok-kw">struct</span> {</span> <span class="line" id="L78"> <span class="tok-comment">/// Length (in bytes) of a raw signature.</span></span> <span class="line" id="L79"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> encoded_length = Curve.scalar.encoded_length * <span class="tok-number">2</span>;</span> <span class="line" id="L80"> <span class="tok-comment">/// Maximum length (in bytes) of a DER-encoded signature.</span></span> <span class="line" id="L81"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> der_encoded_max_length = encoded_length + <span class="tok-number">2</span> + <span class="tok-number">2</span> * <span class="tok-number">3</span>;</span> <span class="line" id="L82"></span> <span class="line" id="L83"> <span class="tok-comment">/// The R component of an ECDSA signature.</span></span> <span class="line" id="L84"> r: Curve.scalar.CompressedScalar,</span> <span class="line" id="L85"> <span class="tok-comment">/// The S component of an ECDSA signature.</span></span> <span class="line" id="L86"> s: Curve.scalar.CompressedScalar,</span> <span class="line" id="L87"></span> <span class="line" id="L88"> <span class="tok-comment">/// Create a Verifier for incremental verification of a signature.</span></span> <span class="line" id="L89"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">verifier</span>(self: Signature, public_key: PublicKey) (NonCanonicalError \|\| EncodingError \|\| IdentityElementError)!Verifier {</span> <span class="line" id="L90"> <span class="tok-kw">return</span> Verifier.init(self, public_key);</span> <span class="line" id="L91"> }</span> <span class="line" id="L92"></span> <span class="line" id="L93"> <span class="tok-comment">/// Verify the signature against a message and public key.</span></span> <span class="line" id="L94"> <span class="tok-comment">/// Return IdentityElement or NonCanonical if the public key or signature are not in the expected range,</span></span> <span class="line" id="L95"> <span class="tok-comment">/// or SignatureVerificationError if the signature is invalid for the given message and key.</span></span> <span class="line" id="L96"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">verify</span>(self: Signature, msg: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, public_key: PublicKey) (IdentityElementError \|\| NonCanonicalError \|\| SignatureVerificationError)!<span class="tok-type">void</span> {</span> <span class="line" id="L97"> <span class="tok-kw">var</span> st = <span class="tok-kw">try</span> Verifier.init(self, public_key);</span> <span class="line" id="L98"> st.update(msg);</span> <span class="line" id="L99"> <span class="tok-kw">return</span> st.verify();</span> <span class="line" id="L100"> }</span> <span class="line" id="L101"></span> <span class="line" id="L102"> <span class="tok-comment">/// Return the raw signature (r, s) in big-endian format.</span></span> <span class="line" id="L103"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toBytes</span>(self: Signature) [encoded_length]<span class="tok-type">u8</span> {</span> <span class="line" id="L104"> <span class="tok-kw">var</span> bytes: [encoded_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L105"> <span class="tok-builtin">@memcpy</span>(bytes[<span class="tok-number">0</span> .. encoded_length / <span class="tok-number">2</span>], &self.r);</span> <span class="line" id="L106"> <span class="tok-builtin">@memcpy</span>(bytes[encoded_length / <span class="tok-number">2</span> ..], &self.s);</span> <span class="line" id="L107"> <span class="tok-kw">return</span> bytes;</span> <span class="line" id="L108"> }</span> <span class="line" id="L109"></span> <span class="line" id="L110"> <span class="tok-comment">/// Create a signature from a raw encoding of (r, s).</span></span> <span class="line" id="L111"> <span class="tok-comment">/// ECDSA always assumes big-endian.</span></span> <span class="line" id="L112"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromBytes</span>(bytes: [encoded_length]<span class="tok-type">u8</span>) Signature {</span> <span class="line" id="L113"> <span class="tok-kw">return</span> Signature{</span> <span class="line" id="L114"> .r = bytes[<span class="tok-number">0</span> .. encoded_length / <span class="tok-number">2</span>].,</span> <span class="line" id="L115"> .s = bytes[encoded_length / <span class="tok-number">2</span> ..].,</span> <span class="line" id="L116"> };</span> <span class="line" id="L117"> }</span> <span class="line" id="L118"></span> <span class="line" id="L119"> <span class="tok-comment">/// Encode the signature using the DER format.</span></span> <span class="line" id="L120"> <span class="tok-comment">/// The maximum length of the DER encoding is der_encoded_max_length.</span></span> <span class="line" id="L121"> <span class="tok-comment">/// The function returns a slice, that can be shorter than der_encoded_max_length.</span></span> <span class="line" id="L122"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toDer</span>(self: Signature, buf: [der_encoded_max_length]<span class="tok-type">u8</span>) []<span class="tok-type">u8</span> {</span> <span class="line" id="L123"> <span class="tok-kw">var</span> fb = io.fixedBufferStream(buf);</span> <span class="line" id="L124"> <span class="tok-kw">const</span> w = fb.writer();</span> <span class="line" id="L125"> <span class="tok-kw">const</span> r_len = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>(self.r.len + (self.r[<span class="tok-number">0</span>] >> <span class="tok-number">7</span>)));</span> <span class="line" id="L126"> <span class="tok-kw">const</span> s_len = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>(self.s.len + (self.s[<span class="tok-number">0</span>] >> <span class="tok-number">7</span>)));</span> <span class="line" id="L127"> <span class="tok-kw">const</span> seq_len = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>(<span class="tok-number">2</span> + r_len + <span class="tok-number">2</span> + s_len));</span> <span class="line" id="L128"> w.writeAll(&[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x30</span>, seq_len }) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L129"> w.writeAll(&[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x02</span>, r_len }) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L130"> <span class="tok-kw">if</span> (self.r[<span class="tok-number">0</span>] >> <span class="tok-number">7</span> != <span class="tok-number">0</span>) {</span> <span class="line" id="L131"> w.writeByte(<span class="tok-number">0x00</span>) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L132"> }</span> <span class="line" id="L133"> w.writeAll(&self.r) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L134"> w.writeAll(&[_]<span class="tok-type">u8</span>{ <span class="tok-number">0x02</span>, s_len }) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L135"> <span class="tok-kw">if</span> (self.s[<span class="tok-number">0</span>] >> <span class="tok-number">7</span> != <span class="tok-number">0</span>) {</span> <span class="line" id="L136"> w.writeByte(<span class="tok-number">0x00</span>) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L137"> }</span> <span class="line" id="L138"> w.writeAll(&self.s) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L139"> <span class="tok-kw">return</span> fb.getWritten();</span> <span class="line" id="L140"> }</span> <span class="line" id="L141"></span> <span class="line" id="L142"> <span class="tok-comment">// Read a DER-encoded integer.</span> </span> <span class="line" id="L143"> <span class="tok-kw">fn</span> <span class="tok-fn">readDerInt</span>(out: []<span class="tok-type">u8</span>, reader: <span class="tok-kw">anytype</span>) EncodingError!<span class="tok-type">void</span> {</span> <span class="line" id="L144"> <span class="tok-kw">var</span> buf: [<span class="tok-number">2</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L145"> _ = reader.readNoEof(&buf) <span class="tok-kw">catch</span> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InvalidEncoding;</span> <span class="line" id="L146"> <span class="tok-kw">if</span> (buf[<span class="tok-number">0</span>] != <span class="tok-number">0x02</span>) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InvalidEncoding;</span> <span class="line" id="L147"> <span class="tok-kw">var</span> expected_len = <span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, buf[<span class="tok-number">1</span>]);</span> <span class="line" id="L148"> <span class="tok-kw">if</span> (expected_len == <span class="tok-number">0</span> <span class="tok-kw">or</span> expected_len > <span class="tok-number">1</span> + out.len) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InvalidEncoding;</span> <span class="line" id="L149"> <span class="tok-kw">var</span> has_top_bit = <span class="tok-null">false</span>;</span> <span class="line" id="L150"> <span class="tok-kw">if</span> (expected_len == <span class="tok-number">1</span> + out.len) {</span> <span class="line" id="L151"> <span class="tok-kw">if</span> ((reader.readByte() <span class="tok-kw">catch</span> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InvalidEncoding) != <span class="tok-number">0</span>) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InvalidEncoding;</span> <span class="line" id="L152"> expected_len -= <span class="tok-number">1</span>;</span> <span class="line" id="L153"> has_top_bit = <span class="tok-null">true</span>;</span> <span class="line" id="L154"> }</span> <span class="line" id="L155"> <span class="tok-kw">const</span> out_slice = out[out.len - expected_len ..];</span> <span class="line" id="L156"> reader.readNoEof(out_slice) <span class="tok-kw">catch</span> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InvalidEncoding;</span> <span class="line" id="L157"> <span class="tok-kw">if</span> (has_top_bit <span class="tok-kw">and</span> out[<span class="tok-number">0</span>] >> <span class="tok-number">7</span> == <span class="tok-number">0</span>) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InvalidEncoding;</span> <span class="line" id="L158"> }</span> <span class="line" id="L159"></span> <span class="line" id="L160"> <span class="tok-comment">/// Create a signature from a DER representation.</span></span> <span class="line" id="L161"> <span class="tok-comment">/// Returns InvalidEncoding if the DER encoding is invalid.</span></span> <span class="line" id="L162"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromDer</span>(der: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) EncodingError!Signature {</span> <span class="line" id="L163"> <span class="tok-kw">var</span> sig: Signature = mem.zeroInit(Signature, .{});</span> <span class="line" id="L164"> <span class="tok-kw">var</span> fb = io.fixedBufferStream(der);</span> <span class="line" id="L165"> <span class="tok-kw">const</span> reader = fb.reader();</span> <span class="line" id="L166"> <span class="tok-kw">var</span> buf: [<span class="tok-number">2</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L167"> _ = reader.readNoEof(&buf) <span class="tok-kw">catch</span> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InvalidEncoding;</span> <span class="line" id="L168"> <span class="tok-kw">if</span> (buf[<span class="tok-number">0</span>] != <span class="tok-number">0x30</span> <span class="tok-kw">or</span> <span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, buf[<span class="tok-number">1</span>]) + <span class="tok-number">2</span> != der.len) {</span> <span class="line" id="L169"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InvalidEncoding;</span> <span class="line" id="L170"> }</span> <span class="line" id="L171"> <span class="tok-kw">try</span> readDerInt(&sig.r, reader);</span> <span class="line" id="L172"> <span class="tok-kw">try</span> readDerInt(&sig.s, reader);</span> <span class="line" id="L173"> <span class="tok-kw">if</span> (fb.getPos() <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span> != der.len) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InvalidEncoding;</span> <span class="line" id="L174"></span> <span class="line" id="L175"> <span class="tok-kw">return</span> sig;</span> <span class="line" id="L176"> }</span> <span class="line" id="L177"> };</span> <span class="line" id="L178"></span> <span class="line" id="L179"> <span class="tok-comment">/// A Signer is used to incrementally compute a signature.</span></span> <span class="line" id="L180"> <span class="tok-comment">/// It can be obtained from a `KeyPair`, using the `signer()` function.</span></span> <span class="line" id="L181"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Signer = <span class="tok-kw">struct</span> {</span> <span class="line" id="L182"> h: Hash,</span> <span class="line" id="L183"> secret_key: SecretKey,</span> <span class="line" id="L184"> noise: ?[noise_length]<span class="tok-type">u8</span>,</span> <span class="line" id="L185"></span> <span class="line" id="L186"> <span class="tok-kw">fn</span> <span class="tok-fn">init</span>(secret_key: SecretKey, noise: ?[noise_length]<span class="tok-type">u8</span>) !Signer {</span> <span class="line" id="L187"> <span class="tok-kw">return</span> Signer{</span> <span class="line" id="L188"> .h = Hash.init(.{}),</span> <span class="line" id="L189"> .secret_key = secret_key,</span> <span class="line" id="L190"> .noise = noise,</span> <span class="line" id="L191"> };</span> <span class="line" id="L192"> }</span> <span class="line" id="L193"></span> <span class="line" id="L194"> <span class="tok-comment">/// Add new data to the message being signed.</span></span> <span class="line" id="L195"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">update</span>(self: Signer, data: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L196"> self.h.update(data);</span> <span class="line" id="L197"> }</span> <span class="line" id="L198"></span> <span class="line" id="L199"> <span class="tok-comment">/// Compute a signature over the entire message.</span></span> <span class="line" id="L200"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">finalize</span>(self: Signer) (IdentityElementError \|\| NonCanonicalError)!Signature {</span> <span class="line" id="L201"> <span class="tok-kw">const</span> scalar_encoded_length = Curve.scalar.encoded_length;</span> <span class="line" id="L202"> <span class="tok-kw">const</span> h_len = <span class="tok-builtin">@max</span>(Hash.digest_length, scalar_encoded_length);</span> <span class="line" id="L203"> <span class="tok-kw">var</span> h: [h_len]<span class="tok-type">u8</span> = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} * h_len;</span> <span class="line" id="L204"> <span class="tok-kw">var</span> h_slice = h[h_len - Hash.digest_length .. h_len];</span> <span class="line" id="L205"> self.h.final(h_slice);</span> <span class="line" id="L206"></span> <span class="line" id="L207"> std.debug.assert(h.len >= scalar_encoded_length);</span> <span class="line" id="L208"> <span class="tok-kw">const</span> z = reduceToScalar(scalar_encoded_length, h[<span class="tok-number">0</span>..scalar_encoded_length].);</span> <span class="line" id="L209"></span> <span class="line" id="L210"> <span class="tok-kw">const</span> k = deterministicScalar(h_slice., self.secret_key.bytes, self.noise);</span> <span class="line" id="L211"></span> <span class="line" id="L212"> <span class="tok-kw">const</span> p = <span class="tok-kw">try</span> Curve.basePoint.mul(k.toBytes(.Big), .Big);</span> <span class="line" id="L213"> <span class="tok-kw">const</span> xs = p.affineCoordinates().x.toBytes(.Big);</span> <span class="line" id="L214"> <span class="tok-kw">const</span> r = reduceToScalar(Curve.Fe.encoded_length, xs);</span> <span class="line" id="L215"> <span class="tok-kw">if</span> (r.isZero()) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.IdentityElement;</span> <span class="line" id="L216"></span> <span class="line" id="L217"> <span class="tok-kw">const</span> k_inv = k.invert();</span> <span class="line" id="L218"> <span class="tok-kw">const</span> zrs = z.add(r.mul(<span class="tok-kw">try</span> Curve.scalar.Scalar.fromBytes(self.secret_key.bytes, .Big)));</span> <span class="line" id="L219"> <span class="tok-kw">const</span> s = k_inv.mul(zrs);</span> <span class="line" id="L220"> <span class="tok-kw">if</span> (s.isZero()) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.IdentityElement;</span> <span class="line" id="L221"></span> <span class="line" id="L222"> <span class="tok-kw">return</span> Signature{ .r = r.toBytes(.Big), .s = s.toBytes(.Big) };</span> <span class="line" id="L223"> }</span> <span class="line" id="L224"> };</span> <span class="line" id="L225"></span> <span class="line" id="L226"> <span class="tok-comment">/// A Verifier is used to incrementally verify a signature.</span></span> <span class="line" id="L227"> <span class="tok-comment">/// It can be obtained from a `Signature`, using the `verifier()` function.</span></span> <span class="line" id="L228"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Verifier = <span class="tok-kw">struct</span> {</span> <span class="line" id="L229"> h: Hash,</span> <span class="line" id="L230"> r: Curve.scalar.Scalar,</span> <span class="line" id="L231"> s: Curve.scalar.Scalar,</span> <span class="line" id="L232"> public_key: PublicKey,</span> <span class="line" id="L233"></span> <span class="line" id="L234"> <span class="tok-kw">fn</span> <span class="tok-fn">init</span>(sig: Signature, public_key: PublicKey) (IdentityElementError \|\| NonCanonicalError)!Verifier {</span> <span class="line" id="L235"> <span class="tok-kw">const</span> r = <span class="tok-kw">try</span> Curve.scalar.Scalar.fromBytes(sig.r, .Big);</span> <span class="line" id="L236"> <span class="tok-kw">const</span> s = <span class="tok-kw">try</span> Curve.scalar.Scalar.fromBytes(sig.s, .Big);</span> <span class="line" id="L237"> <span class="tok-kw">if</span> (r.isZero() <span class="tok-kw">or</span> s.isZero()) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.IdentityElement;</span> <span class="line" id="L238"></span> <span class="line" id="L239"> <span class="tok-kw">return</span> Verifier{</span> <span class="line" id="L240"> .h = Hash.init(.{}),</span> <span class="line" id="L241"> .r = r,</span> <span class="line" id="L242"> .s = s,</span> <span class="line" id="L243"> .public_key = public_key,</span> <span class="line" id="L244"> };</span> <span class="line" id="L245"> }</span> <span class="line" id="L246"></span> <span class="line" id="L247"> <span class="tok-comment">/// Add new content to the message to be verified.</span></span> <span class="line" id="L248"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">update</span>(self: Verifier, data: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L249"> self.h.update(data);</span> <span class="line" id="L250"> }</span> <span class="line" id="L251"></span> <span class="line" id="L252"> <span class="tok-comment">/// Verify that the signature is valid for the entire message.</span></span> <span class="line" id="L253"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">verify</span>(self: Verifier) (IdentityElementError \|\| NonCanonicalError \|\| SignatureVerificationError)!<span class="tok-type">void</span> {</span> <span class="line" id="L254"> <span class="tok-kw">const</span> ht = Curve.scalar.encoded_length;</span> <span class="line" id="L255"> <span class="tok-kw">const</span> h_len = <span class="tok-builtin">@max</span>(Hash.digest_length, ht);</span> <span class="line" id="L256"> <span class="tok-kw">var</span> h: [h_len]<span class="tok-type">u8</span> = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} ** h_len;</span> <span class="line" id="L257"> self.h.final(h[h_len - Hash.digest_length .. h_len]);</span> <span class="line" id="L258"></span> <span class="line" id="L259"> <span class="tok-kw">const</span> z = reduceToScalar(ht, h[<span class="tok-number">0</span>..ht].);</span> <span class="line" id="L260"> <span class="tok-kw">if</span> (z.isZero()) {</span> <span class="line" id="L261"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SignatureVerificationFailed;</span> <span class="line" id="L262"> }</span> <span class="line" id="L263"></span> <span class="line" id="L264"> <span class="tok-kw">const</span> s_inv = self.s.invert();</span> <span class="line" id="L265"> <span class="tok-kw">const</span> v1 = z.mul(s_inv).toBytes(.Little);</span> <span class="line" id="L266"> <span class="tok-kw">const</span> v2 = self.r.mul(s_inv).toBytes(.Little);</span> <span class="line" id="L267"> <span class="tok-kw">const</span> v1g = <span class="tok-kw">try</span> Curve.basePoint.mulPublic(v1, .Little);</span> <span class="line" id="L268"> <span class="tok-kw">const</span> v2pk = <span class="tok-kw">try</span> self.public_key.p.mulPublic(v2, .Little);</span> <span class="line" id="L269"> <span class="tok-kw">const</span> vxs = v1g.add(v2pk).affineCoordinates().x.toBytes(.Big);</span> <span class="line" id="L270"> <span class="tok-kw">const</span> vr = reduceToScalar(Curve.Fe.encoded_length, vxs);</span> <span class="line" id="L271"> <span class="tok-kw">if</span> (!self.r.equivalent(vr)) {</span> <span class="line" id="L272"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SignatureVerificationFailed;</span> <span class="line" id="L273"> }</span> <span class="line" id="L274"> }</span> <span class="line" id="L275"> };</span> <span class="line" id="L276"></span> <span class="line" id="L277"> <span class="tok-comment">/// An ECDSA key pair.</span></span> <span class="line" id="L278"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> KeyPair = <span class="tok-kw">struct</span> {</span> <span class="line" id="L279"> <span class="tok-comment">/// Length (in bytes) of a seed required to create a key pair.</span></span> <span class="line" id="L280"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> seed_length = noise_length;</span> <span class="line" id="L281"></span> <span class="line" id="L282"> <span class="tok-comment">/// Public part.</span></span> <span class="line" id="L283"> public_key: PublicKey,</span> <span class="line" id="L284"> <span class="tok-comment">/// Secret scalar.</span></span> <span class="line" id="L285"> secret_key: SecretKey,</span> <span class="line" id="L286"></span> <span class="line" id="L287"> <span class="tok-comment">/// Create a new key pair. The seed must be secret and indistinguishable from random.</span></span> <span class="line" id="L288"> <span class="tok-comment">/// The seed can also be left to null in order to generate a random key pair.</span></span> <span class="line" id="L289"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">create</span>(seed: ?[seed_length]<span class="tok-type">u8</span>) IdentityElementError!KeyPair {</span> <span class="line" id="L290"> <span class="tok-kw">var</span> seed_ = seed;</span> <span class="line" id="L291"> <span class="tok-kw">if</span> (seed_ == <span class="tok-null">null</span>) {</span> <span class="line" id="L292"> <span class="tok-kw">var</span> random_seed: [seed_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L293"> crypto.random.bytes(&random_seed);</span> <span class="line" id="L294"> seed_ = random_seed;</span> <span class="line" id="L295"> }</span> <span class="line" id="L296"> <span class="tok-kw">const</span> h = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x00</span>} * Hash.digest_length;</span> <span class="line" id="L297"> <span class="tok-kw">const</span> k0 = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x01</span>} SecretKey.encoded_length;</span> <span class="line" id="L298"> <span class="tok-kw">const</span> secret_key = deterministicScalar(h, k0, seed_).toBytes(.Big);</span> <span class="line" id="L299"> <span class="tok-kw">return</span> fromSecretKey(SecretKey{ .bytes = secret_key });</span> <span class="line" id="L300"> }</span> <span class="line" id="L301"></span> <span class="line" id="L302"> <span class="tok-comment">/// Return the public key corresponding to the secret key.</span></span> <span class="line" id="L303"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromSecretKey</span>(secret_key: SecretKey) IdentityElementError!KeyPair {</span> <span class="line" id="L304"> <span class="tok-kw">const</span> public_key = <span class="tok-kw">try</span> Curve.basePoint.mul(secret_key.bytes, .Big);</span> <span class="line" id="L305"> <span class="tok-kw">return</span> KeyPair{ .secret_key = secret_key, .public_key = PublicKey{ .p = public_key } };</span> <span class="line" id="L306"> }</span> <span class="line" id="L307"></span> <span class="line" id="L308"> <span class="tok-comment">/// Sign a message using the key pair.</span></span> <span class="line" id="L309"> <span class="tok-comment">/// The noise can be null in order to create deterministic signatures.</span></span> <span class="line" id="L310"> <span class="tok-comment">/// If deterministic signatures are not required, the noise should be randomly generated instead.</span></span> <span class="line" id="L311"> <span class="tok-comment">/// This helps defend against fault attacks.</span></span> <span class="line" id="L312"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">sign</span>(key_pair: KeyPair, msg: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, noise: ?[noise_length]<span class="tok-type">u8</span>) (IdentityElementError \|\| NonCanonicalError)!Signature {</span> <span class="line" id="L313"> <span class="tok-kw">var</span> st = <span class="tok-kw">try</span> key_pair.signer(noise);</span> <span class="line" id="L314"> st.update(msg);</span> <span class="line" id="L315"> <span class="tok-kw">return</span> st.finalize();</span> <span class="line" id="L316"> }</span> <span class="line" id="L317"></span> <span class="line" id="L318"> <span class="tok-comment">/// Create a Signer, that can be used for incremental signature verification.</span></span> <span class="line" id="L319"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">signer</span>(key_pair: KeyPair, noise: ?[noise_length]<span class="tok-type">u8</span>) !Signer {</span> <span class="line" id="L320"> <span class="tok-kw">return</span> Signer.init(key_pair.secret_key, noise);</span> <span class="line" id="L321"> }</span> <span class="line" id="L322"> };</span> <span class="line" id="L323"></span> <span class="line" id="L324"> <span class="tok-comment">// Reduce the coordinate of a field element to the scalar field.</span> </span> <span class="line" id="L325"> <span class="tok-kw">fn</span> <span class="tok-fn">reduceToScalar</span>(<span class="tok-kw">comptime</span> unreduced_len: <span class="tok-type">usize</span>, s: [unreduced_len]<span class="tok-type">u8</span>) Curve.scalar.Scalar {</span> <span class="line" id="L326"> <span class="tok-kw">if</span> (unreduced_len >= <span class="tok-number">48</span>) {</span> <span class="line" id="L327"> <span class="tok-kw">var</span> xs = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} <span class="tok-number">64</span>;</span> <span class="line" id="L328"> <span class="tok-builtin">@memcpy</span>(xs[xs.len - s.len ..], s[<span class="tok-number">0</span>..]);</span> <span class="line" id="L329"> <span class="tok-kw">return</span> Curve.scalar.Scalar.fromBytes64(xs, .Big);</span> <span class="line" id="L330"> }</span> <span class="line" id="L331"> <span class="tok-kw">var</span> xs = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} <span class="tok-number">48</span>;</span> <span class="line" id="L332"> <span class="tok-builtin">@memcpy</span>(xs[xs.len - s.len ..], s[<span class="tok-number">0</span>..]);</span> <span class="line" id="L333"> <span class="tok-kw">return</span> Curve.scalar.Scalar.fromBytes48(xs, .Big);</span> <span class="line" id="L334"> }</span> <span class="line" id="L335"></span> <span class="line" id="L336"> <span class="tok-comment">// Create a deterministic scalar according to a secret key and optional noise.</span> </span> <span class="line" id="L337"> <span class="tok-comment">// This uses the overly conservative scheme from the "Deterministic ECDSA and EdDSA Signatures with Additional Randomness" draft.</span> </span> <span class="line" id="L338"> <span class="tok-kw">fn</span> <span class="tok-fn">deterministicScalar</span>(h: [Hash.digest_length]<span class="tok-type">u8</span>, secret_key: Curve.scalar.CompressedScalar, noise: ?[noise_length]<span class="tok-type">u8</span>) Curve.scalar.Scalar {</span> <span class="line" id="L339"> <span class="tok-kw">var</span> k = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x00</span>} h.len;</span> <span class="line" id="L340"> <span class="tok-kw">var</span> m = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x00</span>} (h.len + <span class="tok-number">1</span> + noise_length + secret_key.len + h.len);</span> <span class="line" id="L341"> <span class="tok-kw">var</span> t = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x00</span>} Curve.scalar.encoded_length;</span> <span class="line" id="L342"> <span class="tok-kw">const</span> m_v = m[<span class="tok-number">0</span>..h.len];</span> <span class="line" id="L343"> <span class="tok-kw">const</span> m_i = &m[m_v.len];</span> <span class="line" id="L344"> <span class="tok-kw">const</span> m_z = m[m_v.len + <span class="tok-number">1</span> ..][<span class="tok-number">0</span>..noise_length];</span> <span class="line" id="L345"> <span class="tok-kw">const</span> m_x = m[m_v.len + <span class="tok-number">1</span> + noise_length ..][<span class="tok-number">0</span>..secret_key.len];</span> <span class="line" id="L346"> <span class="tok-kw">const</span> m_h = m[m.len - h.len ..];</span> <span class="line" id="L347"></span> <span class="line" id="L348"> <span class="tok-builtin">@memset</span>(m_v, <span class="tok-number">0x01</span>);</span> <span class="line" id="L349"> m_i.* = <span class="tok-number">0x00</span>;</span> <span class="line" id="L350"> <span class="tok-kw">if</span> (noise) \|n\| <span class="tok-builtin">@memcpy</span>(m_z, &n);</span> <span class="line" id="L351"> <span class="tok-builtin">@memcpy</span>(m_x, &secret_key);</span> <span class="line" id="L352"> <span class="tok-builtin">@memcpy</span>(m_h, &h);</span> <span class="line" id="L353"> Hmac.create(&k, &m, &k);</span> <span class="line" id="L354"> Hmac.create(m_v, m_v, &k);</span> <span class="line" id="L355"> m_i.* = <span class="tok-number">0x01</span>;</span> <span class="line" id="L356"> Hmac.create(&k, &m, &k);</span> <span class="line" id="L357"> Hmac.create(m_v, m_v, &k);</span> <span class="line" id="L358"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L359"> <span class="tok-kw">var</span> t_off: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L360"> <span class="tok-kw">while</span> (t_off < t.len) : (t_off += m_v.len) {</span> <span class="line" id="L361"> <span class="tok-kw">const</span> t_end = <span class="tok-builtin">@min</span>(t_off + m_v.len, t.len);</span> <span class="line" id="L362"> Hmac.create(m_v, m_v, &k);</span> <span class="line" id="L363"> <span class="tok-builtin">@memcpy</span>(t[t_off..t_end], m_v[<span class="tok-number">0</span> .. t_end - t_off]);</span> <span class="line" id="L364"> }</span> <span class="line" id="L365"> <span class="tok-kw">if</span> (Curve.scalar.Scalar.fromBytes(t, .Big)) \|s\| <span class="tok-kw">return</span> s <span class="tok-kw">else</span> \|_\| {}</span> <span class="line" id="L366"> m_i.* = <span class="tok-number">0x00</span>;</span> <span class="line" id="L367"> Hmac.create(&k, m[<span class="tok-number">0</span> .. m_v.len + <span class="tok-number">1</span>], &k);</span> <span class="line" id="L368"> Hmac.create(m_v, m_v, &k);</span> <span class="line" id="L369"> }</span> <span class="line" id="L370"> }</span> <span class="line" id="L371"> };</span> <span class="line" id="L372">}</span> <span class="line" id="L373"></span> <span class="line" id="L374"><span class="tok-kw">test</span> <span class="tok-str">"ECDSA - Basic operations over EcdsaP384Sha384"</span> {</span> <span class="line" id="L375"> <span class="tok-kw">if</span> (builtin.zig_backend == .stage2_c) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SkipZigTest;</span> <span class="line" id="L376"></span> <span class="line" id="L377"> <span class="tok-kw">const</span> Scheme = EcdsaP384Sha384;</span> <span class="line" id="L378"> <span class="tok-kw">const</span> kp = <span class="tok-kw">try</span> Scheme.KeyPair.create(<span class="tok-null">null</span>);</span> <span class="line" id="L379"> <span class="tok-kw">const</span> msg = <span class="tok-str">"test"</span>;</span> <span class="line" id="L380"></span> <span class="line" id="L381"> <span class="tok-kw">var</span> noise: [Scheme.noise_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L382"> crypto.random.bytes(&noise);</span> <span class="line" id="L383"> <span class="tok-kw">const</span> sig = <span class="tok-kw">try</span> kp.sign(msg, noise);</span> <span class="line" id="L384"> <span class="tok-kw">try</span> sig.verify(msg, kp.public_key);</span> <span class="line" id="L385"></span> <span class="line" id="L386"> <span class="tok-kw">const</span> sig2 = <span class="tok-kw">try</span> kp.sign(msg, <span class="tok-null">null</span>);</span> <span class="line" id="L387"> <span class="tok-kw">try</span> sig2.verify(msg, kp.public_key);</span> <span class="line" id="L388">}</span> <span class="line" id="L389"></span> <span class="line" id="L390"><span class="tok-kw">test</span> <span class="tok-str">"ECDSA - Basic operations over Secp256k1"</span> {</span> <span class="line" id="L391"> <span class="tok-kw">if</span> (builtin.zig_backend == .stage2_c) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SkipZigTest;</span> <span class="line" id="L392"></span> <span class="line" id="L393"> <span class="tok-kw">const</span> Scheme = EcdsaSecp256k1Sha256oSha256;</span> <span class="line" id="L394"> <span class="tok-kw">const</span> kp = <span class="tok-kw">try</span> Scheme.KeyPair.create(<span class="tok-null">null</span>);</span> <span class="line" id="L395"> <span class="tok-kw">const</span> msg = <span class="tok-str">"test"</span>;</span> <span class="line" id="L396"></span> <span class="line" id="L397"> <span class="tok-kw">var</span> noise: [Scheme.noise_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L398"> crypto.random.bytes(&noise);</span> <span class="line" id="L399"> <span class="tok-kw">const</span> sig = <span class="tok-kw">try</span> kp.sign(msg, noise);</span> <span class="line" id="L400"> <span class="tok-kw">try</span> sig.verify(msg, kp.public_key);</span> <span class="line" id="L401"></span> <span class="line" id="L402"> <span class="tok-kw">const</span> sig2 = <span class="tok-kw">try</span> kp.sign(msg, <span class="tok-null">null</span>);</span> <span class="line" id="L403"> <span class="tok-kw">try</span> sig2.verify(msg, kp.public_key);</span> <span class="line" id="L404">}</span> <span class="line" id="L405"></span> <span class="line" id="L406"><span class="tok-kw">test</span> <span class="tok-str">"ECDSA - Basic operations over EcdsaP384Sha256"</span> {</span> <span class="line" id="L407"> <span class="tok-kw">if</span> (builtin.zig_backend == .stage2_c) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SkipZigTest;</span> <span class="line" id="L408"></span> <span class="line" id="L409"> <span class="tok-kw">const</span> Scheme = Ecdsa(crypto.ecc.P384, crypto.hash.sha2.Sha256);</span> <span class="line" id="L410"> <span class="tok-kw">const</span> kp = <span class="tok-kw">try</span> Scheme.KeyPair.create(<span class="tok-null">null</span>);</span> <span class="line" id="L411"> <span class="tok-kw">const</span> msg = <span class="tok-str">"test"</span>;</span> <span class="line" id="L412"></span> <span class="line" id="L413"> <span class="tok-kw">var</span> noise: [Scheme.noise_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L414"> crypto.random.bytes(&noise);</span> <span class="line" id="L415"> <span class="tok-kw">const</span> sig = <span class="tok-kw">try</span> kp.sign(msg, noise);</span> <span class="line" id="L416"> <span class="tok-kw">try</span> sig.verify(msg, kp.public_key);</span> <span class="line" id="L417"></span> <span class="line" id="L418"> <span class="tok-kw">const</span> sig2 = <span class="tok-kw">try</span> kp.sign(msg, <span class="tok-null">null</span>);</span> <span class="line" id="L419"> <span class="tok-kw">try</span> sig2.verify(msg, kp.public_key);</span> <span class="line" id="L420">}</span> <span class="line" id="L421"></span> <span class="line" id="L422"><span class="tok-kw">test</span> <span class="tok-str">"ECDSA - Verifying a existing signature with EcdsaP384Sha256"</span> {</span> <span class="line" id="L423"> <span class="tok-kw">if</span> (builtin.zig_backend == .stage2_c) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SkipZigTest;</span> <span class="line" id="L424"></span> <span class="line" id="L425"> <span class="tok-kw">const</span> Scheme = Ecdsa(crypto.ecc.P384, crypto.hash.sha2.Sha256);</span> <span class="line" id="L426"> <span class="tok-comment">// zig fmt: off</span> </span> <span class="line" id="L427"> <span class="tok-kw">const</span> sk_bytes = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L428"> <span class="tok-number">0x6a</span>, <span class="tok-number">0x53</span>, <span class="tok-number">0x9c</span>, <span class="tok-number">0x83</span>, <span class="tok-number">0x0f</span>, <span class="tok-number">0x06</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0xd9</span>, <span class="tok-number">0xef</span>, <span class="tok-number">0xf1</span>, <span class="tok-number">0xe7</span>, <span class="tok-number">0x5c</span>, <span class="tok-number">0xae</span>,</span> <span class="line" id="L429"> <span class="tok-number">0x93</span>, <span class="tok-number">0xd9</span>, <span class="tok-number">0x5b</span>, <span class="tok-number">0x16</span>, <span class="tok-number">0x1e</span>, <span class="tok-number">0x96</span>, <span class="tok-number">0x7c</span>, <span class="tok-number">0xb0</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0xc9</span>, <span class="tok-number">0xea</span>, <span class="tok-number">0x20</span>,</span> <span class="line" id="L430"> <span class="tok-number">0xdc</span>, <span class="tok-number">0x2b</span>, <span class="tok-number">0x02</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x6d</span>, <span class="tok-number">0xd2</span>, <span class="tok-number">0x89</span>, <span class="tok-number">0x72</span>, <span class="tok-number">0x0a</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0xf6</span>, <span class="tok-number">0x5d</span>, <span class="tok-number">0x4f</span>,</span> <span class="line" id="L431"> <span class="tok-number">0x4d</span>, <span class="tok-number">0xf7</span>, <span class="tok-number">0x97</span>, <span class="tok-number">0xcb</span>, <span class="tok-number">0x8b</span>, <span class="tok-number">0x03</span>, <span class="tok-number">0x63</span>, <span class="tok-number">0xc3</span>, <span class="tok-number">0x2d</span></span> <span class="line" id="L432"> };</span> <span class="line" id="L433"> <span class="tok-kw">const</span> msg = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L434"> <span class="tok-number">0x64</span>, <span class="tok-number">0x61</span>, <span class="tok-number">0x74</span>, <span class="tok-number">0x61</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x66</span>, <span class="tok-number">0x6f</span>, <span class="tok-number">0x72</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x73</span>, <span class="tok-number">0x69</span>, <span class="tok-number">0x67</span>, <span class="tok-number">0x6e</span>,</span> <span class="line" id="L435"> <span class="tok-number">0x69</span>, <span class="tok-number">0x6e</span>, <span class="tok-number">0x67</span>, <span class="tok-number">0x0a</span></span> <span class="line" id="L436"> };</span> <span class="line" id="L437"> <span class="tok-kw">const</span> sig_ans_bytes = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L438"> <span class="tok-number">0x30</span>, <span class="tok-number">0x64</span>, <span class="tok-number">0x02</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x7a</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0xd8</span>, <span class="tok-number">0xe0</span>, <span class="tok-number">0xf8</span>, <span class="tok-number">0x40</span>, <span class="tok-number">0x7d</span>, <span class="tok-number">0x6a</span>, <span class="tok-number">0xf3</span>,</span> <span class="line" id="L439"> <span class="tok-number">0x1a</span>, <span class="tok-number">0x5d</span>, <span class="tok-number">0x02</span>, <span class="tok-number">0xe5</span>, <span class="tok-number">0xcb</span>, <span class="tok-number">0x24</span>, <span class="tok-number">0x29</span>, <span class="tok-number">0x1a</span>, <span class="tok-number">0xac</span>, <span class="tok-number">0x15</span>, <span class="tok-number">0x94</span>, <span class="tok-number">0xd1</span>, <span class="tok-number">0x5b</span>,</span> <span class="line" id="L440"> <span class="tok-number">0xcd</span>, <span class="tok-number">0x75</span>, <span class="tok-number">0x2f</span>, <span class="tok-number">0x45</span>, <span class="tok-number">0x79</span>, <span class="tok-number">0x98</span>, <span class="tok-number">0xf7</span>, <span class="tok-number">0x60</span>, <span class="tok-number">0x9a</span>, <span class="tok-number">0xd5</span>, <span class="tok-number">0xca</span>, <span class="tok-number">0x80</span>, <span class="tok-number">0x15</span>,</span> <span class="line" id="L441"> <span class="tok-number">0x87</span>, <span class="tok-number">0x9b</span>, <span class="tok-number">0x0c</span>, <span class="tok-number">0x27</span>, <span class="tok-number">0xe3</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x8b</span>, <span class="tok-number">0x73</span>, <span class="tok-number">0x4e</span>, <span class="tok-number">0x57</span>, <span class="tok-number">0xa3</span>, <span class="tok-number">0xd2</span>, <span class="tok-number">0x9a</span>,</span> <span class="line" id="L442"> <span class="tok-number">0x02</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0xe0</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x5e</span>, <span class="tok-number">0x76</span>, <span class="tok-number">0x1f</span>, <span class="tok-number">0xc8</span>, <span class="tok-number">0xcf</span>, <span class="tok-number">0xda</span>, <span class="tok-number">0xbe</span>, <span class="tok-number">0x64</span>,</span> <span class="line" id="L443"> <span class="tok-number">0x95</span>, <span class="tok-number">0x0a</span>, <span class="tok-number">0xd4</span>, <span class="tok-number">0x85</span>, <span class="tok-number">0x34</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x08</span>, <span class="tok-number">0x7a</span>, <span class="tok-number">0x81</span>, <span class="tok-number">0xf2</span>, <span class="tok-number">0xf6</span>, <span class="tok-number">0xb6</span>, <span class="tok-number">0x94</span>,</span> <span class="line" id="L444"> <span class="tok-number">0x68</span>, <span class="tok-number">0xc3</span>, <span class="tok-number">0x8c</span>, <span class="tok-number">0x5f</span>, <span class="tok-number">0x88</span>, <span class="tok-number">0x92</span>, <span class="tok-number">0x27</span>, <span class="tok-number">0x5e</span>, <span class="tok-number">0x4e</span>, <span class="tok-number">0x84</span>, <span class="tok-number">0x96</span>, <span class="tok-number">0x48</span>, <span class="tok-number">0x42</span>,</span> <span class="line" id="L445"> <span class="tok-number">0x84</span>, <span class="tok-number">0x28</span>, <span class="tok-number">0xac</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x93</span>, <span class="tok-number">0x07</span>, <span class="tok-number">0xd3</span>, <span class="tok-number">0x50</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0x71</span>, <span class="tok-number">0xb0</span></span> <span class="line" id="L446"> };</span> <span class="line" id="L447"> <span class="tok-comment">// zig fmt: on</span> </span> <span class="line" id="L448"></span> <span class="line" id="L449"> <span class="tok-kw">const</span> sk = <span class="tok-kw">try</span> Scheme.SecretKey.fromBytes(sk_bytes);</span> <span class="line" id="L450"> <span class="tok-kw">const</span> kp = <span class="tok-kw">try</span> Scheme.KeyPair.fromSecretKey(sk);</span> <span class="line" id="L451"></span> <span class="line" id="L452"> <span class="tok-kw">const</span> sig_ans = <span class="tok-kw">try</span> Scheme.Signature.fromDer(&sig_ans_bytes);</span> <span class="line" id="L453"> <span class="tok-kw">try</span> sig_ans.verify(&msg, kp.public_key);</span> <span class="line" id="L454"></span> <span class="line" id="L455"> <span class="tok-kw">const</span> sig = <span class="tok-kw">try</span> kp.sign(&msg, <span class="tok-null">null</span>);</span> <span class="line" id="L456"> <span class="tok-kw">try</span> sig.verify(&msg, kp.public_key);</span> <span class="line" id="L457">}</span> <span class="line" id="L458"></span> <span class="line" id="L459"><span class="tok-kw">const</span> TestVector = <span class="tok-kw">struct</span> {</span> <span class="line" id="L460"> key: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L461"> msg: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L462"> sig: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L463"> result: <span class="tok-kw">enum</span> { valid, invalid, acceptable },</span> <span class="line" id="L464">};</span> <span class="line" id="L465"></span> <span class="line" id="L466"><span class="tok-kw">test</span> <span class="tok-str">"ECDSA - Test vectors from Project Wycheproof"</span> {</span> <span class="line" id="L467"> <span class="tok-kw">if</span> (builtin.zig_backend == .stage2_c) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SkipZigTest;</span> <span class="line" id="L468"></span> <span class="line" id="L469"> <span class="tok-kw">const</span> vectors = [_]TestVector{</span> <span class="line" id="L470"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304402202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e1802204cd60b855d442f5b3c7b11eb6c4e0ae7525fe710fab9aa7c77a67f79e6fadd76"</span>, .result = .valid },</span> <span class="line" id="L471"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304402202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e180220b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .acceptable },</span> <span class="line" id="L472"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304502202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .valid },</span> <span class="line" id="L473"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"30814502202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L474"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3082004502202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L475"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304602202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L476"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304402202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L477"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3085010000004502202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L478"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"308901000000000000004502202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L479"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"30847fffffff02202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L480"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3084ffffffff02202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L481"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3085ffffffffff02202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L482"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3088ffffffffffffffff02202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L483"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"30ff02202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L484"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"308002202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L485"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304502802ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L486"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304502202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18028000b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L487"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">""</span>, .result = .invalid },</span> <span class="line" id="L488"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"30"</span>, .result = .invalid },</span> <span class="line" id="L489"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304702202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db0000"</span>, .result = .invalid },</span> <span class="line" id="L490"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3047000002202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L491"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304502202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db0000"</span>, .result = .invalid },</span> <span class="line" id="L492"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304702202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db0500"</span>, .result = .invalid },</span> <span class="line" id="L493"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304a498177304502202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L494"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"30492500304502202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L495"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3047304502202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db0004deadbeef"</span>, .result = .invalid },</span> <span class="line" id="L496"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304a222549817702202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L497"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"30492224250002202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L498"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304d222202202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e180004deadbeef022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L499"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304a02202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e182226498177022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L500"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304902202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e1822252500022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L501"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304d02202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e182223022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db0004deadbeef"</span>, .result = .invalid },</span> <span class="line" id="L502"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304daa00bb00cd00304502202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L503"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304baa02aabb304502202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L504"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304d2228aa00bb00cd0002202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L505"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304b2226aa02aabb02202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L506"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304d02202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e182229aa00bb00cd00022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L507"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304b02202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e182227aa02aabb022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L508"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3081"</span>, .result = .invalid },</span> <span class="line" id="L509"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3080304502202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db0000"</span>, .result = .invalid },</span> <span class="line" id="L510"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3049228002202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e180000022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L511"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304902202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e182280022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db0000"</span>, .result = .invalid },</span> <span class="line" id="L512"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3080314502202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db0000"</span>, .result = .invalid },</span> <span class="line" id="L513"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3049228003202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e180000022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L514"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304902202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e182280032100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db0000"</span>, .result = .invalid },</span> <span class="line" id="L515"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"0500"</span>, .result = .invalid },</span> <span class="line" id="L516"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"2e4502202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L517"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"2f4502202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L518"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"314502202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L519"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"324502202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L520"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"ff4502202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L521"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3000"</span>, .result = .invalid },</span> <span class="line" id="L522"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"30493001023044202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L523"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304402202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847"</span>, .result = .invalid },</span> <span class="line" id="L524"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3044202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L525"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"308002202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db0000"</span>, .result = .invalid },</span> <span class="line" id="L526"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"308002202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db00"</span>, .result = .invalid },</span> <span class="line" id="L527"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"308002202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db05000000"</span>, .result = .invalid },</span> <span class="line" id="L528"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"308002202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db060811220000"</span>, .result = .invalid },</span> <span class="line" id="L529"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"308002202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db0000fe02beef"</span>, .result = .invalid },</span> <span class="line" id="L530"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"308002202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db0002beef"</span>, .result = .invalid },</span> <span class="line" id="L531"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3047300002202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L532"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304702202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db3000"</span>, .result = .invalid },</span> <span class="line" id="L533"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304802202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847dbbf7f00"</span>, .result = .invalid },</span> <span class="line" id="L534"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3047304502202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L535"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"302202202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18"</span>, .result = .invalid },</span> <span class="line" id="L536"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"306802202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L537"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"30460281202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L538"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304602202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e1802812100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L539"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3047028200202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L540"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304702202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e180282002100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L541"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304502212ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L542"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3045021f2ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L543"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304502202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022200b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L544"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304502202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022000b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L545"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304a028501000000202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L546"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304a02202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e180285010000002100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L547"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304e02890100000000000000202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L548"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304e02202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18028901000000000000002100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L549"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304902847fffffff2ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L550"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304902202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e1802847fffffff00b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L551"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"30490284ffffffff2ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L552"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304902202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e180284ffffffff00b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L553"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304a0285ffffffffff2ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L554"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304a02202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e180285ffffffffff00b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L555"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304d0288ffffffffffffffff2ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L556"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304d02202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e180288ffffffffffffffff00b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L557"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304502ff2ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L558"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304502202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e1802ff00b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L559"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3023022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L560"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"302402022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L561"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"302302202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e1802"</span>, .result = .invalid },</span> <span class="line" id="L562"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304702222ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e180000022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L563"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304702202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022300b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db0000"</span>, .result = .invalid },</span> <span class="line" id="L564"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3047022200002ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L565"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304702202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e180223000000b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L566"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304702202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e180000022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L567"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304702222ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e180500022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L568"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304702202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022300b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db0500"</span>, .result = .invalid },</span> <span class="line" id="L569"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"30250281022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L570"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"302402202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e180281"</span>, .result = .invalid },</span> <span class="line" id="L571"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"30250500022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L572"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"302402202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e180500"</span>, .result = .invalid },</span> <span class="line" id="L573"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304500202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L574"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304501202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L575"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304503202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L576"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304504202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L577"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3045ff202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L578"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304502202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18002100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L579"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304502202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18012100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L580"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304502202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18032100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L581"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304502202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18042100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L582"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304502202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18ff2100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L583"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"30250200022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L584"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"302402202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e180200"</span>, .result = .invalid },</span> <span class="line" id="L585"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3049222402012b021fa3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L586"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304902202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e1822250201000220b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L587"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3045022029a3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L588"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304502202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022102b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L589"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304502202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e98022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L590"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304502202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b491568475b"</span>, .result = .invalid },</span> <span class="line" id="L591"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3044021f2ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L592"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3044021fa3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L593"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304402202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022000b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847"</span>, .result = .invalid },</span> <span class="line" id="L594"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"30460221ff2ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L595"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304602202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e180222ff00b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L596"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3026090180022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L597"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"302502202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18090180"</span>, .result = .invalid },</span> <span class="line" id="L598"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3026020100022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L599"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"302502202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18020100"</span>, .result = .invalid },</span> <span class="line" id="L600"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"30460221012ba3a8bd6b94d5ed80a6d9d1190a436ebccc0833490686deac8635bcb9bf5369022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L601"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"30460221ff2ba3a8bf6b94d5eb80a6d9d1190a436f42fe12d7fad749d4c512a036c0f908c7022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L602"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"30450220d45c5741946b2a137f59262ee6f5bc91001af27a5e1117a64733950642a3d1e8022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L603"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3046022100d45c5740946b2a147f59262ee6f5bc90bd01ed280528b62b3aed5fc93f06f739022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L604"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"30460221fed45c5742946b2a127f59262ee6f5bc914333f7ccb6f979215379ca434640ac97022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L605"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"30460221012ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L606"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3046022100d45c5741946b2a137f59262ee6f5bc91001af27a5e1117a64733950642a3d1e8022100b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L607"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304502202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022101b329f478a2bbd0a6c384ee1493b1f518276e0e4a5375928d6fcd160c11cb6d2c"</span>, .result = .invalid },</span> <span class="line" id="L608"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304402202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e180220b329f47aa2bbd0a4c384ee1493b1f518ada018ef05465583885980861905228a"</span>, .result = .invalid },</span> <span class="line" id="L609"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304502202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e180221ff4cd60b865d442f5a3c7b11eb6c4e0ae79578ec6353a20bf783ecb4b6ea97b825"</span>, .result = .invalid },</span> <span class="line" id="L610"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304502202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e180221fe4cd60b875d442f593c7b11eb6c4e0ae7d891f1b5ac8a6d729032e9f3ee3492d4"</span>, .result = .invalid },</span> <span class="line" id="L611"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304502202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e18022101b329f479a2bbd0a5c384ee1493b1f5186a87139cac5df4087c134b49156847db"</span>, .result = .invalid },</span> <span class="line" id="L612"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304402202ba3a8be6b94d5ec80a6d9d1190a436effe50d85a1eee859b8cc6af9bd5c2e1802204cd60b865d442f5a3c7b11eb6c4e0ae79578ec6353a20bf783ecb4b6ea97b825"</span>, .result = .invalid },</span> <span class="line" id="L613"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3006020100020100"</span>, .result = .invalid },</span> <span class="line" id="L614"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3006020100020101"</span>, .result = .invalid },</span> <span class="line" id="L615"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"30060201000201ff"</span>, .result = .invalid },</span> <span class="line" id="L616"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3026020100022100ffffffff00000000ffffffffffffffffbce6faada7179e84f3b9cac2fc632551"</span>, .result = .invalid },</span> <span class="line" id="L617"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3026020100022100ffffffff00000000ffffffffffffffffbce6faada7179e84f3b9cac2fc632550"</span>, .result = .invalid },</span> <span class="line" id="L618"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3026020100022100ffffffff00000000ffffffffffffffffbce6faada7179e84f3b9cac2fc632552"</span>, .result = .invalid },</span> <span class="line" id="L619"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span 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class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3026022100ffffffff00000000ffffffffffffffffbce6faada7179e84f3b9cac2fc6325520201ff"</span>, .result = .invalid },</span> <span class="line" id="L666"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3046022100ffffffff00000000ffffffffffffffffbce6faada7179e84f3b9cac2fc632552022100ffffffff00000000ffffffffffffffffbce6faada7179e84f3b9cac2fc632551"</span>, .result = .invalid },</span> <span class="line" id="L667"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3046022100ffffffff00000000ffffffffffffffffbce6faada7179e84f3b9cac2fc632552022100ffffffff00000000ffffffffffffffffbce6faada7179e84f3b9cac2fc632550"</span>, .result = .invalid },</span> <span class="line" id="L668"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3046022100ffffffff00000000ffffffffffffffffbce6faada7179e84f3b9cac2fc632552022100ffffffff00000000ffffffffffffffffbce6faada7179e84f3b9cac2fc632552"</span>, .result = .invalid },</span> <span class="line" id="L669"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3046022100ffffffff00000000ffffffffffffffffbce6faada7179e84f3b9cac2fc632552022100ffffffff00000001000000000000000000000000ffffffffffffffffffffffff"</span>, .result = .invalid },</span> <span class="line" id="L670"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3046022100ffffffff00000000ffffffffffffffffbce6faada7179e84f3b9cac2fc632552022100ffffffff00000001000000000000000000000001000000000000000000000000"</span>, .result = .invalid },</span> <span class="line" id="L671"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3028022100ffffffff00000000ffffffffffffffffbce6faada7179e84f3b9cac2fc632552090380fe01"</span>, .result = .invalid },</span> <span class="line" id="L672"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3026022100ffffffff00000000ffffffffffffffffbce6faada7179e84f3b9cac2fc632552090142"</span>, .result = .invalid },</span> <span class="line" id="L673"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3026022100ffffffff00000001000000000000000000000000ffffffffffffffffffffffff020100"</span>, .result = .invalid },</span> <span class="line" id="L674"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3026022100ffffffff00000001000000000000000000000000ffffffffffffffffffffffff020101"</span>, .result = .invalid },</span> <span class="line" id="L675"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3026022100ffffffff00000001000000000000000000000000ffffffffffffffffffffffff0201ff"</span>, .result = .invalid },</span> <span class="line" id="L676"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3046022100ffffffff00000001000000000000000000000000ffffffffffffffffffffffff022100ffffffff00000000ffffffffffffffffbce6faada7179e84f3b9cac2fc632551"</span>, .result = .invalid },</span> <span class="line" id="L677"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3046022100ffffffff00000001000000000000000000000000ffffffffffffffffffffffff022100ffffffff00000000ffffffffffffffffbce6faada7179e84f3b9cac2fc632550"</span>, .result = .invalid },</span> <span class="line" id="L678"> .{ .key = <span 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class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3026022100ffffffff00000001000000000000000000000000ffffffffffffffffffffffff090142"</span>, .result = .invalid },</span> <span class="line" id="L683"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3026022100ffffffff00000001000000000000000000000001000000000000000000000000020100"</span>, .result = .invalid },</span> <span class="line" id="L684"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3026022100ffffffff00000001000000000000000000000001000000000000000000000000020101"</span>, .result = .invalid },</span> <span class="line" id="L685"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3026022100ffffffff000000010000000000000000000000010000000000000000000000000201ff"</span>, .result = .invalid },</span> <span class="line" id="L686"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3046022100ffffffff00000001000000000000000000000001000000000000000000000000022100ffffffff00000000ffffffffffffffffbce6faada7179e84f3b9cac2fc632551"</span>, .result = .invalid },</span> <span class="line" id="L687"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3046022100ffffffff00000001000000000000000000000001000000000000000000000000022100ffffffff00000000ffffffffffffffffbce6faada7179e84f3b9cac2fc632550"</span>, .result = .invalid },</span> <span class="line" id="L688"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3046022100ffffffff00000001000000000000000000000001000000000000000000000000022100ffffffff00000000ffffffffffffffffbce6faada7179e84f3b9cac2fc632552"</span>, .result = .invalid },</span> <span class="line" id="L689"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3046022100ffffffff00000001000000000000000000000001000000000000000000000000022100ffffffff00000001000000000000000000000000ffffffffffffffffffffffff"</span>, .result = .invalid },</span> <span class="line" id="L690"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3046022100ffffffff00000001000000000000000000000001000000000000000000000000022100ffffffff00000001000000000000000000000001000000000000000000000000"</span>, .result = .invalid },</span> <span class="line" id="L691"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3028022100ffffffff00000001000000000000000000000001000000000000000000000000090380fe01"</span>, .result = .invalid },</span> <span class="line" id="L692"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3026022100ffffffff00000001000000000000000000000001000000000000000000000000090142"</span>, .result = 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class="tok-str">"30090c0225730c03732573"</span>, .result = .invalid },</span> <span class="line" id="L696"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"30080201013003020100"</span>, .result = .invalid },</span> <span class="line" id="L697"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3003020101"</span>, .result = .invalid },</span> <span class="line" id="L698"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3006020101010100"</span>, .result = .invalid },</span> <span class="line" id="L699"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"3639383139"</span>, .sig = <span class="tok-str">"3044022064a1aab5000d0e804f3e2fc02bdee9be8ff312334e2ba16d11547c97711c898e02206af015971cc30be6d1a206d4e013e0997772a2f91d73286ffd683b9bb2cf4f1b"</span>, .result = .valid },</span> <span class="line" id="L700"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"343236343739373234"</span>, .sig = <span class="tok-str">"3044022016aea964a2f6506d6f78c81c91fc7e8bded7d397738448de1e19a0ec580bf2660220252cd762130c6667cfe8b7bc47d27d78391e8e80c578d1cd38c3ff033be928e9"</span>, .result = .valid },</span> <span class="line" id="L701"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"37313338363834383931"</span>, .sig = <span class="tok-str">"30450221009cc98be2347d469bf476dfc26b9b733df2d26d6ef524af917c665baccb23c8820220093496459effe2d8d70727b82462f61d0ec1b7847929d10ea631dacb16b56c32"</span>, .result = .valid },</span> <span class="line" id="L702"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"3130333539333331363638"</span>, .sig = <span class="tok-str">"3044022073b3c90ecd390028058164524dde892703dce3dea0d53fa8093999f07ab8aa4302202f67b0b8e20636695bb7d8bf0a651c802ed25a395387b5f4188c0c4075c88634"</span>, .result = .valid },</span> <span class="line" id="L703"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"33393439343031323135"</span>, .sig = <span class="tok-str">"3046022100bfab3098252847b328fadf2f89b95c851a7f0eb390763378f37e90119d5ba3dd022100bdd64e234e832b1067c2d058ccb44d978195ccebb65c2aaf1e2da9b8b4987e3b"</span>, .result = .valid },</span> <span class="line" id="L704"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"31333434323933303739"</span>, .sig = <span class="tok-str">"30440220204a9784074b246d8bf8bf04a4ceb1c1f1c9aaab168b1596d17093c5cd21d2cd022051cce41670636783dc06a759c8847868a406c2506fe17975582fe648d1d88b52"</span>, .result = .valid },</span> <span class="line" id="L705"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"33373036323131373132"</span>, .sig = <span class="tok-str">"3046022100ed66dc34f551ac82f63d4aa4f81fe2cb0031a91d1314f835027bca0f1ceeaa0302210099ca123aa09b13cd194a422e18d5fda167623c3f6e5d4d6abb8953d67c0c48c7"</span>, .result = .valid },</span> <span class="line" id="L706"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"333433363838373132"</span>, .sig = <span class="tok-str">"30450220060b700bef665c68899d44f2356a578d126b062023ccc3c056bf0f60a237012b0221008d186c027832965f4fcc78a3366ca95dedbb410cbef3f26d6be5d581c11d3610"</span>, .result = .valid },</span> <span class="line" id="L707"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"31333531353330333730"</span>, .sig = <span class="tok-str">"30460221009f6adfe8d5eb5b2c24d7aa7934b6cf29c93ea76cd313c9132bb0c8e38c96831d022100b26a9c9e40e55ee0890c944cf271756c906a33e66b5bd15e051593883b5e9902"</span>, .result = .valid },</span> <span class="line" id="L708"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"36353533323033313236"</span>, .sig = <span class="tok-str">"3045022100a1af03ca91677b673ad2f33615e56174a1abf6da168cebfa8868f4ba273f16b7022020aa73ffe48afa6435cd258b173d0c2377d69022e7d098d75caf24c8c5e06b1c"</span>, .result = .valid },</span> <span class="line" id="L709"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"31353634333436363033"</span>, .sig = <span class="tok-str">"3045022100fdc70602766f8eed11a6c99a71c973d5659355507b843da6e327a28c11893db902203df5349688a085b137b1eacf456a9e9e0f6d15ec0078ca60a7f83f2b10d21350"</span>, .result = .valid },</span> <span class="line" id="L710"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"34343239353339313137"</span>, .sig = <span class="tok-str">"3046022100b516a314f2fce530d6537f6a6c49966c23456f63c643cf8e0dc738f7b876e675022100d39ffd033c92b6d717dd536fbc5efdf1967c4bd80954479ba66b0120cd16fff2"</span>, .result = .valid },</span> <span class="line" id="L711"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"3130393533323631333531"</span>, .sig = <span class="tok-str">"304402203b2cbf046eac45842ecb7984d475831582717bebb6492fd0a485c101e29ff0a802204c9b7b47a98b0f82de512bc9313aaf51701099cac5f76e68c8595fc1c1d99258"</span>, .result = .valid },</span> <span class="line" id="L712"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"35393837333530303431"</span>, .sig = <span class="tok-str">"3044022030c87d35e636f540841f14af54e2f9edd79d0312cfa1ab656c3fb15bfde48dcf022047c15a5a82d24b75c85a692bd6ecafeb71409ede23efd08e0db9abf6340677ed"</span>, .result = .valid },</span> <span class="line" id="L713"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"33343633303036383738"</span>, .sig = <span class="tok-str">"3044022038686ff0fda2cef6bc43b58cfe6647b9e2e8176d168dec3c68ff262113760f520220067ec3b651f422669601662167fa8717e976e2db5e6a4cf7c2ddabb3fde9d67d"</span>, .result = .valid },</span> <span class="line" id="L714"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"39383137333230323837"</span>, .sig = <span class="tok-str">"3044022044a3e23bf314f2b344fc25c7f2de8b6af3e17d27f5ee844b225985ab6e2775cf02202d48e223205e98041ddc87be532abed584f0411f5729500493c9cc3f4dd15e86"</span>, .result = .valid },</span> <span class="line" id="L715"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"33323232303431303436"</span>, .sig = <span class="tok-str">"304402202ded5b7ec8e90e7bf11f967a3d95110c41b99db3b5aa8d330eb9d638781688e902207d5792c53628155e1bfc46fb1a67e3088de049c328ae1f44ec69238a009808f9"</span>, .result = .valid },</span> <span class="line" id="L716"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"36363636333037313034"</span>, .sig = <span class="tok-str">"3046022100bdae7bcb580bf335efd3bc3d31870f923eaccafcd40ec2f605976f15137d8b8f022100f6dfa12f19e525270b0106eecfe257499f373a4fb318994f24838122ce7ec3c7"</span>, .result = .valid },</span> <span class="line" id="L717"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"31303335393531383938"</span>, .sig = <span class="tok-str">"3045022050f9c4f0cd6940e162720957ffff513799209b78596956d21ece251c2401f1c6022100d7033a0a787d338e889defaaabb106b95a4355e411a59c32aa5167dfab244726"</span>, .result = .valid },</span> <span class="line" id="L718"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"31383436353937313935"</span>, .sig = <span class="tok-str">"3045022100f612820687604fa01906066a378d67540982e29575d019aabe90924ead5c860d02203f9367702dd7dd4f75ea98afd20e328a1a99f4857b316525328230ce294b0fef"</span>, .result = .valid },</span> <span class="line" id="L719"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"33313336303436313839"</span>, .sig = <span class="tok-str">"30460221009505e407657d6e8bc93db5da7aa6f5081f61980c1949f56b0f2f507da5782a7a022100c60d31904e3669738ffbeccab6c3656c08e0ed5cb92b3cfa5e7f71784f9c5021"</span>, .result = .valid },</span> <span class="line" id="L720"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"32363633373834323534"</span>, .sig = <span class="tok-str">"3046022100bbd16fbbb656b6d0d83e6a7787cd691b08735aed371732723e1c68a40404517d0221009d8e35dba96028b7787d91315be675877d2d097be5e8ee34560e3e7fd25c0f00"</span>, .result = .valid },</span> <span class="line" id="L721"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"31363532313030353234"</span>, .sig = <span class="tok-str">"304402202ec9760122db98fd06ea76848d35a6da442d2ceef7559a30cf57c61e92df327e02207ab271da90859479701fccf86e462ee3393fb6814c27b760c4963625c0a19878"</span>, .result = .valid },</span> <span class="line" id="L722"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"35373438303831363936"</span>, .sig = <span class="tok-str">"3044022054e76b7683b6650baa6a7fc49b1c51eed9ba9dd463221f7a4f1005a89fe00c5902202ea076886c773eb937ec1cc8374b7915cfd11b1c1ae1166152f2f7806a31c8fd"</span>, .result = .valid },</span> <span class="line" id="L723"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"36333433393133343638"</span>, .sig = <span class="tok-str">"304402205291deaf24659ffbbce6e3c26f6021097a74abdbb69be4fb10419c0c496c9466022065d6fcf336d27cc7cdb982bb4e4ecef5827f84742f29f10abf83469270a03dc3"</span>, .result = .valid },</span> <span class="line" id="L724"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"31353431313033353938"</span>, .sig = <span class="tok-str">"30450220207a3241812d75d947419dc58efb05e8003b33fc17eb50f9d15166a88479f107022100cdee749f2e492b213ce80b32d0574f62f1c5d70793cf55e382d5caadf7592767"</span>, .result = .valid },</span> <span class="line" id="L725"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"3130343738353830313238"</span>, .sig = <span class="tok-str">"304502206554e49f82a855204328ac94913bf01bbe84437a355a0a37c0dee3cf81aa7728022100aea00de2507ddaf5c94e1e126980d3df16250a2eaebc8be486effe7f22b4f929"</span>, .result = .valid },</span> <span class="line" id="L726"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"3130353336323835353638"</span>, .sig = <span class="tok-str">"3046022100a54c5062648339d2bff06f71c88216c26c6e19b4d80a8c602990ac82707efdfc022100e99bbe7fcfafae3e69fd016777517aa01056317f467ad09aff09be73c9731b0d"</span>, .result = .valid },</span> <span class="line" id="L727"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"393533393034313035"</span>, .sig = <span class="tok-str">"3045022100975bd7157a8d363b309f1f444012b1a1d23096593133e71b4ca8b059cff37eaf02207faa7a28b1c822baa241793f2abc930bd4c69840fe090f2aacc46786bf919622"</span>, .result = .valid },</span> <span class="line" id="L728"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"393738383438303339"</span>, .sig = <span class="tok-str">"304402205694a6f84b8f875c276afd2ebcfe4d61de9ec90305afb1357b95b3e0da43885e02200dffad9ffd0b757d8051dec02ebdf70d8ee2dc5c7870c0823b6ccc7c679cbaa4"</span>, .result = .valid },</span> <span class="line" id="L729"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"33363130363732343432"</span>, .sig = <span class="tok-str">"3045022100a0c30e8026fdb2b4b4968a27d16a6d08f7098f1a98d21620d7454ba9790f1ba602205e470453a8a399f15baf463f9deceb53acc5ca64459149688bd2760c65424339"</span>, .result = .valid },</span> <span class="line" id="L730"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"31303534323430373035"</span>, .sig = <span class="tok-str">"30440220614ea84acf736527dd73602cd4bb4eea1dfebebd5ad8aca52aa0228cf7b99a880220737cc85f5f2d2f60d1b8183f3ed490e4de14368e96a9482c2a4dd193195c902f"</span>, .result = .valid },</span> <span class="line" id="L731"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"35313734343438313937"</span>, .sig = <span class="tok-str">"3045022100bead6734ebe44b810d3fb2ea00b1732945377338febfd439a8d74dfbd0f942fa02206bb18eae36616a7d3cad35919fd21a8af4bbe7a10f73b3e036a46b103ef56e2a"</span>, .result = .valid },</span> <span class="line" id="L732"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"31393637353631323531"</span>, .sig = <span class="tok-str">"30440220499625479e161dacd4db9d9ce64854c98d922cbf212703e9654fae182df9bad2022042c177cf37b8193a0131108d97819edd9439936028864ac195b64fca76d9d693"</span>, .result = .valid },</span> <span class="line" id="L733"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"33343437323533333433"</span>, .sig = <span class="tok-str">"3045022008f16b8093a8fb4d66a2c8065b541b3d31e3bfe694f6b89c50fb1aaa6ff6c9b20221009d6455e2d5d1779748573b611cb95d4a21f967410399b39b535ba3e5af81ca2e"</span>, .result = .valid },</span> <span class="line" id="L734"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"333638323634333138"</span>, .sig = <span class="tok-str">"3046022100be26231b6191658a19dd72ddb99ed8f8c579b6938d19bce8eed8dc2b338cb5f8022100e1d9a32ee56cffed37f0f22b2dcb57d5c943c14f79694a03b9c5e96952575c89"</span>, .result = .valid },</span> <span class="line" id="L735"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"33323631313938363038"</span>, .sig = <span class="tok-str">"3045022015e76880898316b16204ac920a02d58045f36a229d4aa4f812638c455abe0443022100e74d357d3fcb5c8c5337bd6aba4178b455ca10e226e13f9638196506a1939123"</span>, .result = .valid },</span> <span class="line" id="L736"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"39363738373831303934"</span>, .sig = <span class="tok-str">"30440220352ecb53f8df2c503a45f9846fc28d1d31e6307d3ddbffc1132315cc07f16dad02201348dfa9c482c558e1d05c5242ca1c39436726ecd28258b1899792887dd0a3c6"</span>, .result = .valid },</span> <span class="line" id="L737"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"34393538383233383233"</span>, .sig = <span class="tok-str">"304402204a40801a7e606ba78a0da9882ab23c7677b8642349ed3d652c5bfa5f2a9558fb02203a49b64848d682ef7f605f2832f7384bdc24ed2925825bf8ea77dc5981725782"</span>, .result = .valid },</span> <span class="line" id="L738"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"383234363337383337"</span>, .sig = <span class="tok-str">"3045022100eacc5e1a8304a74d2be412b078924b3bb3511bac855c05c9e5e9e44df3d61e9602207451cd8e18d6ed1885dd827714847f96ec4bb0ed4c36ce9808db8f714204f6d1"</span>, .result = .valid },</span> <span class="line" id="L739"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"3131303230383333373736"</span>, .sig = <span class="tok-str">"304502202f7a5e9e5771d424f30f67fdab61e8ce4f8cd1214882adb65f7de94c31577052022100ac4e69808345809b44acb0b2bd889175fb75dd050c5a449ab9528f8f78daa10c"</span>, .result = .valid },</span> <span class="line" id="L740"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"313333383731363438"</span>, .sig = <span class="tok-str">"3045022100ffcda40f792ce4d93e7e0f0e95e1a2147dddd7f6487621c30a03d710b3300219022079938b55f8a17f7ed7ba9ade8f2065a1fa77618f0b67add8d58c422c2453a49a"</span>, .result = .valid },</span> <span class="line" id="L741"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"333232313434313632"</span>, .sig = <span class="tok-str">"304602210081f2359c4faba6b53d3e8c8c3fcc16a948350f7ab3a588b28c17603a431e39a8022100cd6f6a5cc3b55ead0ff695d06c6860b509e46d99fccefb9f7f9e101857f74300"</span>, .result = .valid },</span> <span class="line" id="L742"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"3130363836363535353436"</span>, .sig = <span class="tok-str">"3045022100dfc8bf520445cbb8ee1596fb073ea283ea130251a6fdffa5c3f5f2aaf75ca8080220048e33efce147c9dd92823640e338e68bfd7d0dc7a4905b3a7ac711e577e90e7"</span>, .result = .valid },</span> <span class="line" id="L743"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"3632313535323436"</span>, .sig = <span class="tok-str">"3046022100ad019f74c6941d20efda70b46c53db166503a0e393e932f688227688ba6a576202210093320eb7ca0710255346bdbb3102cdcf7964ef2e0988e712bc05efe16c199345"</span>, .result = .valid },</span> <span class="line" id="L744"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"37303330383138373734"</span>, .sig = <span class="tok-str">"3046022100ac8096842e8add68c34e78ce11dd71e4b54316bd3ebf7fffdeb7bd5a3ebc1883022100f5ca2f4f23d674502d4caf85d187215d36e3ce9f0ce219709f21a3aac003b7a8"</span>, .result = .valid },</span> <span class="line" id="L745"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"35393234353233373434"</span>, .sig = <span class="tok-str">"30440220677b2d3a59b18a5ff939b70ea002250889ddcd7b7b9d776854b4943693fb92f702206b4ba856ade7677bf30307b21f3ccda35d2f63aee81efd0bab6972cc0795db55"</span>, .result = .valid },</span> <span class="line" id="L746"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"31343935353836363231"</span>, .sig = <span class="tok-str">"30450220479e1ded14bcaed0379ba8e1b73d3115d84d31d4b7c30e1f05e1fc0d5957cfb0022100918f79e35b3d89487cf634a4f05b2e0c30857ca879f97c771e877027355b2443"</span>, .result = .valid },</span> <span class="line" id="L747"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"34303035333134343036"</span>, .sig = <span class="tok-str">"3044022043dfccd0edb9e280d9a58f01164d55c3d711e14b12ac5cf3b64840ead512a0a302201dbe33fa8ba84533cd5c4934365b3442ca1174899b78ef9a3199f49584389772"</span>, .result = .valid },</span> <span class="line" id="L748"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"33303936343537353132"</span>, .sig = <span class="tok-str">"304402205b09ab637bd4caf0f4c7c7e4bca592fea20e9087c259d26a38bb4085f0bbff11022045b7eb467b6748af618e9d80d6fdcd6aa24964e5a13f885bca8101de08eb0d75"</span>, .result = .valid },</span> <span class="line" id="L749"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"32373834303235363230"</span>, .sig = <span class="tok-str">"304502205e9b1c5a028070df5728c5c8af9b74e0667afa570a6cfa0114a5039ed15ee06f022100b1360907e2d9785ead362bb8d7bd661b6c29eeffd3c5037744edaeb9ad990c20"</span>, .result = .valid },</span> <span class="line" id="L750"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"32363138373837343138"</span>, .sig = <span class="tok-str">"304502200671a0a85c2b72d54a2fb0990e34538b4890050f5a5712f6d1a7a5fb8578f32e022100db1846bab6b7361479ab9c3285ca41291808f27fd5bd4fdac720e5854713694c"</span>, .result = .valid },</span> <span class="line" id="L751"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"31363432363235323632"</span>, .sig = <span class="tok-str">"304402207673f8526748446477dbbb0590a45492c5d7d69859d301abbaedb35b2095103a02203dc70ddf9c6b524d886bed9e6af02e0e4dec0d417a414fed3807ef4422913d7c"</span>, .result = .valid },</span> <span class="line" id="L752"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"36383234313839343336"</span>, .sig = <span class="tok-str">"304402207f085441070ecd2bb21285089ebb1aa6450d1a06c36d3ff39dfd657a796d12b50220249712012029870a2459d18d47da9aa492a5e6cb4b2d8dafa9e4c5c54a2b9a8b"</span>, .result = .valid },</span> <span class="line" id="L753"> .{ .key = <span class="tok-str">"042927b10512bae3eddcfe467828128bad2903269919f7086069c8c4df6c732838c7787964eaac00e5921fb1498a60f4606766b3d9685001558d1a974e7341513e"</span>, .msg = <span class="tok-str">"343834323435343235"</span>, .sig = <span class="tok-str">"3046022100914c67fb61dd1e27c867398ea7322d5ab76df04bc5aa6683a8e0f30a5d287348022100fa07474031481dda4953e3ac1959ee8cea7e66ec412b38d6c96d28f6d37304ea"</span>, .result = .valid },</span> <span class="line" id="L754"> .{ .key = <span class="tok-str">"040ad99500288d466940031d72a9f5445a4d43784640855bf0a69874d2de5fe103c5011e6ef2c42dcd50d5d3d29f99ae6eba2c80c9244f4c5422f0979ff0c3ba5e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"303502104319055358e8617b0c46353d039cdaab022100ffffffff00000000ffffffffffffffffbce6faada7179e84f3b9cac2fc63254e"</span>, .result = .valid },</span> <span class="line" id="L755"> .{ .key = <span class="tok-str">"040ad99500288d466940031d72a9f5445a4d43784640855bf0a69874d2de5fe103c5011e6ef2c42dcd50d5d3d29f99ae6eba2c80c9244f4c5422f0979ff0c3ba5e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3046022100ffffffff00000001000000000000000000000000fffffffffffffffffffffffc022100ffffffff00000000ffffffffffffffffbce6faada7179e84f3b9cac2fc63254e"</span>, .result = .invalid },</span> <span class="line" id="L756"> .{ .key = <span class="tok-str">"04ab05fd9d0de26b9ce6f4819652d9fc69193d0aa398f0fba8013e09c58220455419235271228c786759095d12b75af0692dd4103f19f6a8c32f49435a1e9b8d45"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3046022100ffffffff00000000ffffffffffffffffbce6faada7179e84f3b9cac2fc63254f022100ffffffff00000000ffffffffffffffffbce6faada7179e84f3b9cac2fc63254e"</span>, .result = .valid },</span> <span class="line" id="L757"> .{ .key = <span class="tok-str">"0480984f39a1ff38a86a68aa4201b6be5dfbfecf876219710b07badf6fdd4c6c5611feb97390d9826e7a06dfb41871c940d74415ed3cac2089f1445019bb55ed95"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304502207ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd022100909135bdb6799286170f5ead2de4f6511453fe50914f3df2de54a36383df8dd4"</span>, .result = .valid },</span> <span class="line" id="L758"> .{ .key = <span class="tok-str">"044201b4272944201c3294f5baa9a3232b6dd687495fcc19a70a95bc602b4f7c0595c37eba9ee8171c1bb5ac6feaf753bc36f463e3aef16629572c0c0a8fb0800e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304402207ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd022027b4577ca009376f71303fd5dd227dcef5deb773ad5f5a84360644669ca249a5"</span>, .result = .valid },</span> <span class="line" id="L759"> .{ .key = <span class="tok-str">"04a71af64de5126a4a4e02b7922d66ce9415ce88a4c9d25514d91082c8725ac9575d47723c8fbe580bb369fec9c2665d8e30a435b9932645482e7c9f11e872296b"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3006020105020101"</span>, .result = .valid },</span> <span class="line" id="L760"> .{ .key = <span class="tok-str">"046627cec4f0731ea23fc2931f90ebe5b7572f597d20df08fc2b31ee8ef16b15726170ed77d8d0a14fc5c9c3c4c9be7f0d3ee18f709bb275eaf2073e258fe694a5"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3006020105020103"</span>, .result = .valid },</span> <span class="line" id="L761"> .{ .key = <span class="tok-str">"045a7c8825e85691cce1f5e7544c54e73f14afc010cb731343262ca7ec5a77f5bfef6edf62a4497c1bd7b147fb6c3d22af3c39bfce95f30e13a16d3d7b2812f813"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3006020105020105"</span>, .result = .valid },</span> <span class="line" id="L762"> .{ .key = <span class="tok-str">"04cbe0c29132cd738364fedd603152990c048e5e2fff996d883fa6caca7978c73770af6a8ce44cb41224b2603606f4c04d188e80bff7cc31ad5189d4ab0d70e8c1"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3006020105020106"</span>, .result = .valid },</span> <span class="line" id="L763"> .{ .key = <span class="tok-str">"04cbe0c29132cd738364fedd603152990c048e5e2fff996d883fa6caca7978c73770af6a8ce44cb41224b2603606f4c04d188e80bff7cc31ad5189d4ab0d70e8c1"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3026022100ffffffff00000000ffffffffffffffffbce6faada7179e84f3b9cac2fc632556020106"</span>, .result = .invalid },</span> <span class="line" id="L764"> .{ .key = <span class="tok-str">"044be4178097002f0deab68f0d9a130e0ed33a6795d02a20796db83444b037e13920f13051e0eecdcfce4dacea0f50d1f247caa669f193c1b4075b51ae296d2d56"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3026020105022100ffffffff00000000ffffffffffffffffbce6faada7179e84f3b9cac2fc75fbd8"</span>, .result = .invalid },</span> <span class="line" id="L765"> .{ .key = <span class="tok-str">"04d0f73792203716afd4be4329faa48d269f15313ebbba379d7783c97bf3e890d9971f4a3206605bec21782bf5e275c714417e8f566549e6bc68690d2363c89cc1"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3027020201000221008f1e3c7862c58b16bb76eddbb76eddbb516af4f63f2d74d76e0d28c9bb75ea88"</span>, .result = .valid },</span> <span class="line" id="L766"> .{ .key = <span class="tok-str">"044838b2be35a6276a80ef9e228140f9d9b96ce83b7a254f71ccdebbb8054ce05ffa9cbc123c919b19e00238198d04069043bd660a828814051fcb8aac738a6c6b"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"302c02072d9b4d347952d6022100ef3043e7329581dbb3974497710ab11505ee1c87ff907beebadd195a0ffe6d7a"</span>, .result = .valid },</span> <span class="line" id="L767"> .{ .key = <span class="tok-str">"047393983ca30a520bbc4783dc9960746aab444ef520c0a8e771119aa4e74b0f64e9d7be1ab01a0bf626e709863e6a486dbaf32793afccf774e2c6cd27b1857526"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3032020d1033e67e37b32b445580bf4eff0221008b748b74000000008b748b748b748b7466e769ad4a16d3dcd87129b8e91d1b4d"</span>, .result = .valid },</span> <span class="line" id="L768"> .{ .key = <span class="tok-str">"045ac331a1103fe966697379f356a937f350588a05477e308851b8a502d5dfcdc5fe9993df4b57939b2b8da095bf6d794265204cfe03be995a02e65d408c871c0b"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"302702020100022100ef9f6ba4d97c09d03178fa20b4aaad83be3cf9cb824a879fec3270fc4b81ef5b"</span>, .result = .valid },</span> <span class="line" id="L769"> .{ .key = <span class="tok-str">"041d209be8de2de877095a399d3904c74cc458d926e27bb8e58e5eae5767c41509dd59e04c214f7b18dce351fc2a549893a6860e80163f38cc60a4f2c9d040d8c9"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3032020d062522bbd3ecbe7c39e93e7c25022100ef9f6ba4d97c09d03178fa20b4aaad83be3cf9cb824a879fec3270fc4b81ef5b"</span>, .result = .valid },</span> <span class="line" id="L770"> .{ .key = <span class="tok-str">"04083539fbee44625e3acaafa2fcb41349392cef0633a1b8fabecee0c133b10e99915c1ebe7bf00df8535196770a58047ae2a402f26326bb7d41d4d7616337911e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3045022100ffffffff00000000ffffffffffffffffbce6faada7179e84f3b9cac2fc6324d50220555555550000000055555555555555553ef7a8e48d07df81a693439654210c70"</span>, .result = .valid },</span> <span class="line" id="L771"> .{ .key = <span class="tok-str">"048aeb368a7027a4d64abdea37390c0c1d6a26f399e2d9734de1eb3d0e1937387405bd13834715e1dbae9b875cf07bd55e1b6691c7f7536aef3b19bf7a4adf576d"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"30250220555555550000000055555555555555553ef7a8e48d07df81a693439654210c70020101"</span>, .result = .valid },</span> <span class="line" id="L772"> .{ .key = <span class="tok-str">"048aeb368a7027a4d64abdea37390c0c1d6a26f399e2d9734de1eb3d0e1937387405bd13834715e1dbae9b875cf07bd55e1b6691c7f7536aef3b19bf7a4adf576d"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"30250220555555550000000055555555555555553ef7a8e48d07df81a693439654210c70020100"</span>, .result = .invalid },</span> <span class="line" id="L773"> .{ .key = <span class="tok-str">"04b533d4695dd5b8c5e07757e55e6e516f7e2c88fa0239e23f60e8ec07dd70f2871b134ee58cc583278456863f33c3a85d881f7d4a39850143e29d4eaf009afe47"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304402207fffffff800000007fffffffffffffffde737d56d38bcf4279dce5617e3192a80220555555550000000055555555555555553ef7a8e48d07df81a693439654210c70"</span>, .result = .invalid },</span> <span class="line" id="L774"> .{ .key = <span class="tok-str">"04f50d371b91bfb1d7d14e1323523bc3aa8cbf2c57f9e284de628c8b4536787b86f94ad887ac94d527247cd2e7d0c8b1291c553c9730405380b14cbb209f5fa2dd"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304402207fffffff800000007fffffffffffffffde737d56d38bcf4279dce5617e3192a902207fffffff800000007fffffffffffffffde737d56d38bcf4279dce5617e3192a8"</span>, .result = .valid },</span> <span class="line" id="L775"> .{ .key = <span class="tok-str">"0468ec6e298eafe16539156ce57a14b04a7047c221bafc3a582eaeb0d857c4d94697bed1af17850117fdb39b2324f220a5698ed16c426a27335bb385ac8ca6fb30"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304402207fffffff800000007fffffffffffffffde737d56d38bcf4279dce5617e3192a902207fffffff800000007fffffffffffffffde737d56d38bcf4279dce5617e3192a9"</span>, .result = .valid },</span> <span class="line" id="L776"> .{ .key = <span class="tok-str">"0469da0364734d2e530fece94019265fefb781a0f1b08f6c8897bdf6557927c8b866d2d3c7dcd518b23d726960f069ad71a933d86ef8abbcce8b20f71e2a847002"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"30450220555555550000000055555555555555553ef7a8e48d07df81a693439654210c70022100bb5a52f42f9c9261ed4361f59422a1e30036e7c32b270c8807a419feca605023"</span>, .result = .valid },</span> <span class="line" id="L777"> .{ .key = <span class="tok-str">"04d8adc00023a8edc02576e2b63e3e30621a471e2b2320620187bf067a1ac1ff3233e2b50ec09807accb36131fff95ed12a09a86b4ea9690aa32861576ba2362e1"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"30440220555555550000000055555555555555553ef7a8e48d07df81a693439654210c70022044a5ad0ad0636d9f12bc9e0a6bdd5e1cbcb012ea7bf091fcec15b0c43202d52e"</span>, .result = .valid },</span> <span class="line" id="L778"> .{ .key = <span class="tok-str">"043623ac973ced0a56fa6d882f03a7d5c7edca02cfc7b2401fab3690dbe75ab7858db06908e64b28613da7257e737f39793da8e713ba0643b92e9bb3252be7f8fe"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"30440220555555550000000055555555555555553ef7a8e48d07df81a693439654210c700220555555550000000055555555555555553ef7a8e48d07df81a693439654210c70"</span>, .result = .valid },</span> <span class="line" id="L779"> .{ .key = <span class="tok-str">"04cf04ea77e9622523d894b93ff52dc3027b31959503b6fa3890e5e04263f922f1e8528fb7c006b3983c8b8400e57b4ed71740c2f3975438821199bedeaecab2e9"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"30450220555555550000000055555555555555553ef7a8e48d07df81a693439654210c70022100aaaaaaaa00000000aaaaaaaaaaaaaaaa7def51c91a0fbf034d26872ca84218e1"</span>, .result = .valid },</span> <span class="line" id="L780"> .{ .key = <span class="tok-str">"04db7a2c8a1ab573e5929dc24077b508d7e683d49227996bda3e9f78dbeff773504f417f3bc9a88075c2e0aadd5a13311730cf7cc76a82f11a36eaf08a6c99a206"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304502207ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd022100e91e1ba60fdedb76a46bcb51dc0b8b4b7e019f0a28721885fa5d3a8196623397"</span>, .result = .valid },</span> <span class="line" id="L781"> .{ .key = <span class="tok-str">"04dead11c7a5b396862f21974dc4752fadeff994efe9bbd05ab413765ea80b6e1f1de3f0640e8ac6edcf89cff53c40e265bb94078a343736df07aa0318fc7fe1ff"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304502207ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd022100fdea5843ffeb73af94313ba4831b53fe24f799e525b1e8e8c87b59b95b430ad9"</span>, .result = .valid },</span> <span class="line" id="L782"> .{ .key = <span class="tok-str">"04d0bc472e0d7c81ebaed3a6ef96c18613bb1fea6f994326fbe80e00dfde67c7e9986c723ea4843d48389b946f64ad56c83ad70ff17ba85335667d1bb9fa619efd"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304402207ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd022003ffcabf2f1b4d2a65190db1680d62bb994e41c5251cd73b3c3dfc5e5bafc035"</span>, .result = .valid },</span> <span class="line" id="L783"> .{ .key = <span class="tok-str">"04a0a44ca947d66a2acb736008b9c08d1ab2ad03776e02640f78495d458dd51c326337fe5cf8c4604b1f1c409dc2d872d4294a4762420df43a30a2392e40426add"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304402207ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd02204dfbc401f971cd304b33dfdb17d0fed0fe4c1a88ae648e0d2847f74977534989"</span>, .result = .valid },</span> <span class="line" id="L784"> .{ .key = <span class="tok-str">"04c9c2115290d008b45fb65fad0f602389298c25420b775019d42b62c3ce8a96b73877d25a8080dc02d987ca730f0405c2c9dbefac46f9e601cc3f06e9713973fd"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304502207ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd022100bc4024761cd2ffd43dfdb17d0fed112b988977055cd3a8e54971eba9cda5ca71"</span>, .result = .valid },</span> <span class="line" id="L785"> .{ .key = <span class="tok-str">"045eca1ef4c287dddc66b8bccf1b88e8a24c0018962f3c5e7efa83bc1a5ff6033e5e79c4cb2c245b8c45abdce8a8e4da758d92a607c32cd407ecaef22f1c934a71"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304402207ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd0220788048ed39a5ffa77bfb62fa1fda2257742bf35d128fb3459f2a0c909ee86f91"</span>, .result = .valid },</span> <span class="line" id="L786"> .{ .key = <span class="tok-str">"045caaa030e7fdf0e4936bc7ab5a96353e0a01e4130c3f8bf22d473e317029a47adeb6adc462f7058f2a20d371e9702254e9b201642005b3ceda926b42b178bef9"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304402207ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd0220476d9131fd381bd917d0fed112bc9e0a5924b5ed5b11167edd8b23582b3cb15e"</span>, .result = .valid },</span> <span class="line" id="L787"> .{ .key = <span class="tok-str">"04c2fd20bac06e555bb8ac0ce69eb1ea20f83a1fc3501c8a66469b1a31f619b0986237050779f52b615bd7b8d76a25fc95ca2ed32525c75f27ffc87ac397e6cbaf"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304502207ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd0221008374253e3e21bd154448d0a8f640fe46fafa8b19ce78d538f6cc0a19662d3601"</span>, .result = .valid },</span> <span class="line" id="L788"> .{ .key = <span class="tok-str">"043fd6a1ca7f77fb3b0bbe726c372010068426e11ea6ae78ce17bedae4bba86ced03ce5516406bf8cfaab8745eac1cd69018ad6f50b5461872ddfc56e0db3c8ff4"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304402207ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd0220357cfd3be4d01d413c5b9ede36cba5452c11ee7fe14879e749ae6a2d897a52d6"</span>, .result = .valid },</span> <span class="line" id="L789"> .{ .key = <span class="tok-str">"049cb8e51e27a5ae3b624a60d6dc32734e4989db20e9bca3ede1edf7b086911114b4c104ab3c677e4b36d6556e8ad5f523410a19f2e277aa895fc57322b4427544"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304402207ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd022029798c5c0ee287d4a5e8e6b799fd86b8df5225298e6ffc807cd2f2bc27a0a6d8"</span>, .result = .valid },</span> <span class="line" id="L790"> .{ .key = <span class="tok-str">"04a3e52c156dcaf10502620b7955bc2b40bc78ef3d569e1223c262512d8f49602a4a2039f31c1097024ad3cc86e57321de032355463486164cf192944977df147f"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304402207ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd02200b70f22c781092452dca1a5711fa3a5a1f72add1bf52c2ff7cae4820b30078dd"</span>, .result = .valid },</span> <span class="line" id="L791"> .{ .key = <span class="tok-str">"04f19b78928720d5bee8e670fb90010fb15c37bf91b58a5157c3f3c059b2655e88cf701ec962fb4a11dcf273f5dc357e58468560c7cfeb942d074abd4329260509"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304402207ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd022016e1e458f021248a5b9434ae23f474b43ee55ba37ea585fef95c90416600f1ba"</span>, .result = .valid },</span> <span class="line" id="L792"> .{ .key = <span class="tok-str">"0483a744459ecdfb01a5cf52b27a05bb7337482d242f235d7b4cb89345545c90a8c05d49337b9649813287de9ffe90355fd905df5f3c32945828121f37cc50de6e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304402207ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd02202252d6856831b6cf895e4f0535eeaf0e5e5809753df848fe760ad86219016a97"</span>, .result = .valid },</span> <span class="line" id="L793"> .{ .key = <span class="tok-str">"04dd13c6b34c56982ddae124f039dfd23f4b19bbe88cee8e528ae51e5d6f3a21d7bfad4c2e6f263fe5eb59ca974d039fc0e4c3345692fb5320bdae4bd3b42a45ff"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304502207ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd02210081ffe55f178da695b28c86d8b406b15dab1a9e39661a3ae017fbe390ac0972c3"</span>, .result = .valid },</span> <span class="line" id="L794"> .{ .key = <span class="tok-str">"0467e6f659cdde869a2f65f094e94e5b4dfad636bbf95192feeed01b0f3deb7460a37e0a51f258b7aeb51dfe592f5cfd5685bbe58712c8d9233c62886437c38ba0"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304402207ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd02207fffffffaaaaaaaaffffffffffffffffe9a2538f37b28a2c513dee40fecbb71a"</span>, .result = .valid },</span> <span class="line" id="L795"> .{ .key = <span class="tok-str">"042eb6412505aec05c6545f029932087e490d05511e8ec1f599617bb367f9ecaaf805f51efcc4803403f9b1ae0124890f06a43fedcddb31830f6669af292895cb0"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304502207ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd022100b62f26b5f2a2b26f6de86d42ad8a13da3ab3cccd0459b201de009e526adf21f2"</span>, .result = .valid },</span> <span class="line" id="L796"> .{ .key = <span class="tok-str">"0484db645868eab35e3a9fd80e056e2e855435e3a6b68d75a50a854625fe0d7f356d2589ac655edc9a11ef3e075eddda9abf92e72171570ef7bf43a2ee39338cfe"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304502207ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd022100bb1d9ac949dd748cd02bbbe749bd351cd57b38bb61403d700686aa7b4c90851e"</span>, .result = .valid },</span> <span class="line" id="L797"> .{ .key = <span class="tok-str">"0491b9e47c56278662d75c0983b22ca8ea6aa5059b7a2ff7637eb2975e386ad66349aa8ff283d0f77c18d6d11dc062165fd13c3c0310679c1408302a16854ecfbd"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304402207ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd022066755a00638cdaec1c732513ca0234ece52545dac11f816e818f725b4f60aaf2"</span>, .result = .valid },</span> <span class="line" id="L798"> .{ .key = <span class="tok-str">"04f3ec2f13caf04d0192b47fb4c5311fb6d4dc6b0a9e802e5327f7ec5ee8e4834df97e3e468b7d0db867d6ecfe81e2b0f9531df87efdb47c1338ac321fefe5a432"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304402207ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd022055a00c9fcdaebb6032513ca0234ecfffe98ebe492fdf02e48ca48e982beb3669"</span>, .result = .valid },</span> <span class="line" id="L799"> .{ .key = <span class="tok-str">"04d92b200aefcab6ac7dafd9acaf2fa10b3180235b8f46b4503e4693c670fccc885ef2f3aebf5b317475336256768f7c19efb7352d27e4cccadc85b6b8ab922c72"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304502207ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd022100ab40193f9b5d76c064a27940469d9fffd31d7c925fbe05c919491d3057d66cd2"</span>, .result = .valid },</span> <span class="line" id="L800"> .{ .key = <span class="tok-str">"040a88361eb92ecca2625b38e5f98bbabb96bf179b3d76fc48140a3bcd881523cde6bdf56033f84a5054035597375d90866aa2c96b86a41ccf6edebf47298ad489"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304502207ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd022100ca0234ebb5fdcb13ca0234ecffffffffcb0dadbbc7f549f8a26b4408d0dc8600"</span>, .result = .valid },</span> <span class="line" id="L801"> .{ .key = <span class="tok-str">"04d0fb17ccd8fafe827e0c1afc5d8d80366e2b20e7f14a563a2ba50469d84375e868612569d39e2bb9f554355564646de99ac602cc6349cf8c1e236a7de7637d93"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304502207ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd022100bfffffff3ea3677e082b9310572620ae19933a9e65b285598711c77298815ad3"</span>, .result = .valid },</span> <span class="line" id="L802"> .{ .key = <span class="tok-str">"04836f33bbc1dc0d3d3abbcef0d91f11e2ac4181076c9af0a22b1e4309d3edb2769ab443ff6f901e30c773867582997c2bec2b0cb8120d760236f3a95bbe881f75"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304402207ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd0220266666663bbbbbbbe6666666666666665b37902e023fab7c8f055d86e5cc41f4"</span>, .result = .valid },</span> <span class="line" id="L803"> .{ .key = <span class="tok-str">"0492f99fbe973ed4a299719baee4b432741237034dec8d72ba5103cb33e55feeb8033dd0e91134c734174889f3ebcf1b7a1ac05767289280ee7a794cebd6e69697"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304502207ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd022100bfffffff36db6db7a492492492492492146c573f4c6dfc8d08a443e258970b09"</span>, .result = .valid },</span> <span class="line" id="L804"> .{ .key = <span class="tok-str">"04d35ba58da30197d378e618ec0fa7e2e2d12cffd73ebbb2049d130bba434af09eff83986e6875e41ea432b7585a49b3a6c77cbb3c47919f8e82874c794635c1d2"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304502207ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd022100bfffffff2aaaaaab7fffffffffffffffc815d0e60b3e596ecb1ad3a27cfd49c4"</span>, .result = .valid },</span> <span class="line" id="L805"> .{ .key = <span class="tok-str">"048651ce490f1b46d73f3ff475149be29136697334a519d7ddab0725c8d0793224e11c65bd8ca92dc8bc9ae82911f0b52751ce21dd9003ae60900bd825f590cc28"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304402207ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd02207fffffff55555555ffffffffffffffffd344a71e6f651458a27bdc81fd976e37"</span>, .result = .valid },</span> <span class="line" id="L806"> .{ .key = <span class="tok-str">"046d8e1b12c831a0da8795650ff95f101ed921d9e2f72b15b1cdaca9826b9cfc6def6d63e2bc5c089570394a4bc9f892d5e6c7a6a637b20469a58c106ad486bf37"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304402207ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd02203fffffff800000007fffffffffffffffde737d56d38bcf4279dce5617e3192aa"</span>, .result = .valid },</span> <span class="line" id="L807"> .{ .key = <span class="tok-str">"040ae580bae933b4ef2997cbdbb0922328ca9a410f627a0f7dff24cb4d920e15428911e7f8cc365a8a88eb81421a361ccc2b99e309d8dcd9a98ba83c3949d893e3"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304402207ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd02205d8ecd64a4eeba466815ddf3a4de9a8e6abd9c5db0a01eb80343553da648428f"</span>, .result = .valid },</span> <span class="line" id="L808"> .{ .key = <span class="tok-str">"045b812fd521aafa69835a849cce6fbdeb6983b442d2444fe70e134c027fc46963838a40f2a36092e9004e92d8d940cf5638550ce672ce8b8d4e15eba5499249e9"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304502206f2347cab7dd76858fe0555ac3bc99048c4aacafdfb6bcbe05ea6c42c4934569022100bb726660235793aa9957a61e76e00c2c435109cf9a15dd624d53f4301047856b"</span>, .result = .valid },</span> <span class="line" id="L809"> .{ .key = <span class="tok-str">"045b812fd521aafa69835a849cce6fbdeb6983b442d2444fe70e134c027fc469637c75bf0c5c9f6d17ffb16d2726bf30a9c7aaf31a8d317472b1ea145ab66db616"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304502206f2347cab7dd76858fe0555ac3bc99048c4aacafdfb6bcbe05ea6c42c4934569022100bb726660235793aa9957a61e76e00c2c435109cf9a15dd624d53f4301047856b"</span>, .result = .invalid },</span> <span class="line" id="L810"> .{ .key = <span class="tok-str">"046adda82b90261b0f319faa0d878665a6b6da497f09c903176222c34acfef72a647e6f50dcc40ad5d9b59f7602bb222fad71a41bf5e1f9df4959a364c62e488d9"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"30250201010220555555550000000055555555555555553ef7a8e48d07df81a693439654210c70"</span>, .result = .invalid },</span> <span class="line" id="L811"> .{ .key = <span class="tok-str">"042fca0d0a47914de77ed56e7eccc3276a601120c6df0069c825c8f6a01c9f382065f3450a1d17c6b24989a39beb1c7decfca8384fbdc294418e5d807b3c6ed7de"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3045022101000000000000000000000000000000000000000000000000000000000000000002203333333300000000333333333333333325c7cbbc549e52e763f1f55a327a3aa9"</span>, .result = .invalid },</span> <span class="line" id="L812"> .{ .key = <span class="tok-str">"04dd86d3b5f4a13e8511083b78002081c53ff467f11ebd98a51a633db76665d25045d5c8200c89f2fa10d849349226d21d8dfaed6ff8d5cb3e1b7e17474ebc18f7"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"30440220555555550000000055555555555555553ef7a8e48d07df81a693439654210c7002203333333300000000333333333333333325c7cbbc549e52e763f1f55a327a3aa9"</span>, .result = .invalid },</span> <span class="line" id="L813"> .{ .key = <span class="tok-str">"044fea55b32cb32aca0c12c4cd0abfb4e64b0f5a516e578c016591a93f5a0fbcc5d7d3fd10b2be668c547b212f6bb14c88f0fecd38a8a4b2c785ed3be62ce4b280"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304402207cf27b188d034f7e8a52380304b51ac3c08969e277f21b35a60b48fc476699780220555555550000000055555555555555553ef7a8e48d07df81a693439654210c70"</span>, .result = .valid },</span> <span class="line" id="L814"> .{ .key = <span class="tok-str">"04c6a771527024227792170a6f8eee735bf32b7f98af669ead299802e32d7c3107bc3b4b5e65ab887bbd343572b3e5619261fe3a073e2ffd78412f726867db589e"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304502207cf27b188d034f7e8a52380304b51ac3c08969e277f21b35a60b48fc47669978022100b6db6db6249249254924924924924924625bd7a09bec4ca81bcdd9f8fd6b63cc"</span>, .result = .valid },</span> <span class="line" id="L815"> .{ .key = <span class="tok-str">"04851c2bbad08e54ec7a9af99f49f03644d6ec6d59b207fec98de85a7d15b956efcee9960283045075684b410be8d0f7494b91aa2379f60727319f10ddeb0fe9d6"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304502207cf27b188d034f7e8a52380304b51ac3c08969e277f21b35a60b48fc47669978022100cccccccc00000000cccccccccccccccc971f2ef152794b9d8fc7d568c9e8eaa7"</span>, .result = .valid },</span> <span class="line" id="L816"> .{ .key = <span class="tok-str">"04f6417c8a670584e388676949e53da7fc55911ff68318d1bf3061205acb19c48f8f2b743df34ad0f72674acb7505929784779cd9ac916c3669ead43026ab6d43f"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304402207cf27b188d034f7e8a52380304b51ac3c08969e277f21b35a60b48fc4766997802203333333300000000333333333333333325c7cbbc549e52e763f1f55a327a3aaa"</span>, .result = .valid },</span> <span class="line" id="L817"> .{ .key = <span class="tok-str">"04501421277be45a5eefec6c639930d636032565af420cf3373f557faa7f8a06438673d6cb6076e1cfcdc7dfe7384c8e5cac08d74501f2ae6e89cad195d0aa1371"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304402207cf27b188d034f7e8a52380304b51ac3c08969e277f21b35a60b48fc47669978022049249248db6db6dbb6db6db6db6db6db5a8b230d0b2b51dcd7ebf0c9fef7c185"</span>, .result = .valid },</span> <span class="line" id="L818"> .{ .key = <span class="tok-str">"040d935bf9ffc115a527735f729ca8a4ca23ee01a4894adf0e3415ac84e808bb343195a3762fea29ed38912bd9ea6c4fde70c3050893a4375850ce61d82eba33c5"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304402207cf27b188d034f7e8a52380304b51ac3c08969e277f21b35a60b48fc47669978022016a4502e2781e11ac82cbc9d1edd8c981584d13e18411e2f6e0478c34416e3bb"</span>, .result = .valid },</span> <span class="line" id="L819"> .{ .key = <span class="tok-str">"045e59f50708646be8a589355014308e60b668fb670196206c41e748e64e4dca215de37fee5c97bcaf7144d5b459982f52eeeafbdf03aacbafef38e213624a01de"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304402206b17d1f2e12c4247f8bce6e563a440f277037d812deb33a0f4a13945d898c2960220555555550000000055555555555555553ef7a8e48d07df81a693439654210c70"</span>, .result = .valid },</span> <span class="line" id="L820"> .{ .key = <span class="tok-str">"04169fb797325843faff2f7a5b5445da9e2fd6226f7ef90ef0bfe924104b02db8e7bbb8de662c7b9b1cf9b22f7a2e582bd46d581d68878efb2b861b131d8a1d667"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304502206b17d1f2e12c4247f8bce6e563a440f277037d812deb33a0f4a13945d898c296022100b6db6db6249249254924924924924924625bd7a09bec4ca81bcdd9f8fd6b63cc"</span>, .result = .valid },</span> <span class="line" id="L821"> .{ .key = <span class="tok-str">"04271cd89c000143096b62d4e9e4ca885aef2f7023d18affdaf8b7b548981487540a1c6e954e32108435b55fa385b0f76481a609b9149ccb4b02b2ca47fe8e4da5"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304502206b17d1f2e12c4247f8bce6e563a440f277037d812deb33a0f4a13945d898c296022100cccccccc00000000cccccccccccccccc971f2ef152794b9d8fc7d568c9e8eaa7"</span>, .result = .valid },</span> <span class="line" id="L822"> .{ .key = <span class="tok-str">"043d0bc7ed8f09d2cb7ddb46ebc1ed799ab1563a9ab84bf524587a220afe499c12e22dc3b3c103824a4f378d96adb0a408abf19ce7d68aa6244f78cb216fa3f8df"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304402206b17d1f2e12c4247f8bce6e563a440f277037d812deb33a0f4a13945d898c29602203333333300000000333333333333333325c7cbbc549e52e763f1f55a327a3aaa"</span>, .result = .valid },</span> <span class="line" id="L823"> .{ .key = <span class="tok-str">"04a6c885ade1a4c566f9bb010d066974abb281797fa701288c721bcbd23663a9b72e424b690957168d193a6096fc77a2b004a9c7d467e007e1f2058458f98af316"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304402206b17d1f2e12c4247f8bce6e563a440f277037d812deb33a0f4a13945d898c296022049249248db6db6dbb6db6db6db6db6db5a8b230d0b2b51dcd7ebf0c9fef7c185"</span>, .result = .valid },</span> <span class="line" id="L824"> .{ .key = <span class="tok-str">"048d3c2c2c3b765ba8289e6ac3812572a25bf75df62d87ab7330c3bdbad9ebfa5c4c6845442d66935b238578d43aec54f7caa1621d1af241d4632e0b780c423f5d"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"304402206b17d1f2e12c4247f8bce6e563a440f277037d812deb33a0f4a13945d898c296022016a4502e2781e11ac82cbc9d1edd8c981584d13e18411e2f6e0478c34416e3bb"</span>, .result = .valid },</span> <span class="line" id="L825"> .{ .key = <span class="tok-str">"046b17d1f2e12c4247f8bce6e563a440f277037d812deb33a0f4a13945d898c2964fe342e2fe1a7f9b8ee7eb4a7c0f9e162bce33576b315ececbb6406837bf51f5"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3045022100bb5a52f42f9c9261ed4361f59422a1e30036e7c32b270c8807a419feca6050230220249249246db6db6ddb6db6db6db6db6dad4591868595a8ee6bf5f864ff7be0c2"</span>, .result = .invalid },</span> <span class="line" id="L826"> .{ .key = <span class="tok-str">"046b17d1f2e12c4247f8bce6e563a440f277037d812deb33a0f4a13945d898c2964fe342e2fe1a7f9b8ee7eb4a7c0f9e162bce33576b315ececbb6406837bf51f5"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3044022044a5ad0ad0636d9f12bc9e0a6bdd5e1cbcb012ea7bf091fcec15b0c43202d52e0220249249246db6db6ddb6db6db6db6db6dad4591868595a8ee6bf5f864ff7be0c2"</span>, .result = .invalid },</span> <span class="line" id="L827"> .{ .key = <span class="tok-str">"046b17d1f2e12c4247f8bce6e563a440f277037d812deb33a0f4a13945d898c296b01cbd1c01e58065711814b583f061e9d431cca994cea1313449bf97c840ae0a"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3045022100bb5a52f42f9c9261ed4361f59422a1e30036e7c32b270c8807a419feca6050230220249249246db6db6ddb6db6db6db6db6dad4591868595a8ee6bf5f864ff7be0c2"</span>, .result = .invalid },</span> <span class="line" id="L828"> .{ .key = <span class="tok-str">"046b17d1f2e12c4247f8bce6e563a440f277037d812deb33a0f4a13945d898c296b01cbd1c01e58065711814b583f061e9d431cca994cea1313449bf97c840ae0a"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3044022044a5ad0ad0636d9f12bc9e0a6bdd5e1cbcb012ea7bf091fcec15b0c43202d52e0220249249246db6db6ddb6db6db6db6db6dad4591868595a8ee6bf5f864ff7be0c2"</span>, .result = .invalid },</span> <span class="line" id="L829"> .{ .key = <span class="tok-str">"0404aaec73635726f213fb8a9e64da3b8632e41495a944d0045b522eba7240fad587d9315798aaa3a5ba01775787ced05eaaf7b4e09fc81d6d1aa546e8365d525d"</span>, .msg = <span class="tok-str">""</span>, .sig = <span class="tok-str">"3045022100b292a619339f6e567a305c951c0dcbcc42d16e47f219f9e98e76e09d8770b34a02200177e60492c5a8242f76f07bfe3661bde59ec2a17ce5bd2dab2abebdf89a62e2"</span>, .result = .valid },</span> <span class="line" id="L830"> .{ .key = <span class="tok-str">"0404aaec73635726f213fb8a9e64da3b8632e41495a944d0045b522eba7240fad587d9315798aaa3a5ba01775787ced05eaaf7b4e09fc81d6d1aa546e8365d525d"</span>, .msg = <span class="tok-str">"4d7367"</span>, .sig = <span class="tok-str">"30450220530bd6b0c9af2d69ba897f6b5fb59695cfbf33afe66dbadcf5b8d2a2a6538e23022100d85e489cb7a161fd55ededcedbf4cc0c0987e3e3f0f242cae934c72caa3f43e9"</span>, .result = .valid },</span> <span class="line" id="L831"> .{ .key = <span class="tok-str">"0404aaec73635726f213fb8a9e64da3b8632e41495a944d0045b522eba7240fad587d9315798aaa3a5ba01775787ced05eaaf7b4e09fc81d6d1aa546e8365d525d"</span>, .msg = <span class="tok-str">"313233343030"</span>, .sig = <span class="tok-str">"3046022100a8ea150cb80125d7381c4c1f1da8e9de2711f9917060406a73d7904519e51388022100f3ab9fa68bd47973a73b2d40480c2ba50c22c9d76ec217257288293285449b86"</span>, .result = .valid },</span> <span class="line" id="L832"> .{ .key = <span class="tok-str">"0404aaec73635726f213fb8a9e64da3b8632e41495a944d0045b522eba7240fad587d9315798aaa3a5ba01775787ced05eaaf7b4e09fc81d6d1aa546e8365d525d"</span>, .msg = <span class="tok-str">"0000000000000000000000000000000000000000"</span>, .sig = <span class="tok-str">"3045022100986e65933ef2ed4ee5aada139f52b70539aaf63f00a91f29c69178490d57fb7102203dafedfb8da6189d372308cbf1489bbbdabf0c0217d1c0ff0f701aaa7a694b9c"</span>, .result = .valid },</span> <span class="line" id="L833"> .{ .key = <span class="tok-str">"044f337ccfd67726a805e4f1600ae2849df3807eca117380239fbd816900000000ed9dea124cc8c396416411e988c30f427eb504af43a3146cd5df7ea60666d685"</span>, .msg = <span class="tok-str">"4d657373616765"</span>, .sig = <span class="tok-str">"3046022100d434e262a49eab7781e353a3565e482550dd0fd5defa013c7f29745eff3569f10221009b0c0a93f267fb6052fd8077be769c2b98953195d7bc10de844218305c6ba17a"</span>, .result = .valid },</span> <span class="line" id="L834"> .{ .key = <span class="tok-str">"044f337ccfd67726a805e4f1600ae2849df3807eca117380239fbd816900000000ed9dea124cc8c396416411e988c30f427eb504af43a3146cd5df7ea60666d685"</span>, .msg = <span class="tok-str">"4d657373616765"</span>, .sig = <span class="tok-str">"304402200fe774355c04d060f76d79fd7a772e421463489221bf0a33add0be9b1979110b0220500dcba1c69a8fbd43fa4f57f743ce124ca8b91a1f325f3fac6181175df55737"</span>, .result = .valid },</span> <span class="line" id="L835"> .{ .key = <span class="tok-str">"044f337ccfd67726a805e4f1600ae2849df3807eca117380239fbd816900000000ed9dea124cc8c396416411e988c30f427eb504af43a3146cd5df7ea60666d685"</span>, .msg = <span class="tok-str">"4d657373616765"</span>, .sig = <span class="tok-str">"3045022100bb40bf217bed3fb3950c7d39f03d36dc8e3b2cd79693f125bfd06595ee1135e30220541bf3532351ebb032710bdb6a1bf1bfc89a1e291ac692b3fa4780745bb55677"</span>, .result = .valid },</span> <span class="line" id="L836"> .{ .key = <span class="tok-str">"043cf03d614d8939cfd499a07873fac281618f06b8ff87e8015c3f49726500493584fa174d791c72bf2ce3880a8960dd2a7c7a1338a82f85a9e59cdbde80000000"</span>, .msg = <span class="tok-str">"4d657373616765"</span>, .sig = <span class="tok-str">"30440220664eb7ee6db84a34df3c86ea31389a5405badd5ca99231ff556d3e75a233e73a022059f3c752e52eca46137642490a51560ce0badc678754b8f72e51a2901426a1bd"</span>, .result = .valid },</span> <span class="line" id="L837"> .{ .key = <span class="tok-str">"043cf03d614d8939cfd499a07873fac281618f06b8ff87e8015c3f49726500493584fa174d791c72bf2ce3880a8960dd2a7c7a1338a82f85a9e59cdbde80000000"</span>, .msg = <span class="tok-str">"4d657373616765"</span>, .sig = <span class="tok-str">"304502204cd0429bbabd2827009d6fcd843d4ce39c3e42e2d1631fd001985a79d1fd8b430221009638bf12dd682f60be7ef1d0e0d98f08b7bca77a1a2b869ae466189d2acdabe3"</span>, .result = .valid },</span> <span class="line" id="L838"> .{ .key = <span class="tok-str">"043cf03d614d8939cfd499a07873fac281618f06b8ff87e8015c3f49726500493584fa174d791c72bf2ce3880a8960dd2a7c7a1338a82f85a9e59cdbde80000000"</span>, .msg = <span class="tok-str">"4d657373616765"</span>, .sig = <span class="tok-str">"3046022100e56c6ea2d1b017091c44d8b6cb62b9f460e3ce9aed5e5fd41e8added97c56c04022100a308ec31f281e955be20b457e463440b4fcf2b80258078207fc1378180f89b55"</span>, .result = .valid },</span> <span class="line" id="L839"> .{ .key = <span class="tok-str">"043cf03d614d8939cfd499a07873fac281618f06b8ff87e8015c3f4972650049357b05e8b186e38d41d31c77f5769f22d58385ecc857d07a561a6324217fffffff"</span>, .msg = <span class="tok-str">"4d657373616765"</span>, .sig = <span class="tok-str">"304402201158a08d291500b4cabed3346d891eee57c176356a2624fb011f8fbbf34668300220228a8c486a736006e082325b85290c5bc91f378b75d487dda46798c18f285519"</span>, .result = .valid },</span> <span class="line" id="L840"> .{ .key = <span class="tok-str">"043cf03d614d8939cfd499a07873fac281618f06b8ff87e8015c3f4972650049357b05e8b186e38d41d31c77f5769f22d58385ecc857d07a561a6324217fffffff"</span>, .msg = <span class="tok-str">"4d657373616765"</span>, .sig = <span class="tok-str">"3045022100b1db9289649f59410ea36b0c0fc8d6aa2687b29176939dd23e0dde56d309fa9d02203e1535e4280559015b0dbd987366dcf43a6d1af5c23c7d584e1c3f48a1251336"</span>, .result = .valid },</span> <span class="line" id="L841"> .{ .key = <span class="tok-str">"043cf03d614d8939cfd499a07873fac281618f06b8ff87e8015c3f4972650049357b05e8b186e38d41d31c77f5769f22d58385ecc857d07a561a6324217fffffff"</span>, .msg = <span class="tok-str">"4d657373616765"</span>, .sig = <span class="tok-str">"3046022100b7b16e762286cb96446aa8d4e6e7578b0a341a79f2dd1a220ac6f0ca4e24ed86022100ddc60a700a139b04661c547d07bbb0721780146df799ccf55e55234ecb8f12bc"</span>, .result = .valid },</span> <span class="line" id="L842"> .{ .key = <span class="tok-str">"042829c31faa2e400e344ed94bca3fcd0545956ebcfe8ad0f6dfa5ff8effffffffa01aafaf000e52585855afa7676ade284113099052df57e7eb3bd37ebeb9222e"</span>, .msg = <span class="tok-str">"4d657373616765"</span>, .sig = <span class="tok-str">"3045022100d82a7c2717261187c8e00d8df963ff35d796edad36bc6e6bd1c91c670d9105b402203dcabddaf8fcaa61f4603e7cbac0f3c0351ecd5988efb23f680d07debd139929"</span>, .result = .valid },</span> <span class="line" id="L843"> .{ .key = <span class="tok-str">"042829c31faa2e400e344ed94bca3fcd0545956ebcfe8ad0f6dfa5ff8effffffffa01aafaf000e52585855afa7676ade284113099052df57e7eb3bd37ebeb9222e"</span>, .msg = <span class="tok-str">"4d657373616765"</span>, .sig = <span class="tok-str">"304402205eb9c8845de68eb13d5befe719f462d77787802baff30ce96a5cba063254af7802202c026ae9be2e2a5e7ca0ff9bbd92fb6e44972186228ee9a62b87ddbe2ef66fb5"</span>, .result = .valid },</span> <span class="line" id="L844"> .{ .key = <span class="tok-str">"042829c31faa2e400e344ed94bca3fcd0545956ebcfe8ad0f6dfa5ff8effffffffa01aafaf000e52585855afa7676ade284113099052df57e7eb3bd37ebeb9222e"</span>, .msg = <span class="tok-str">"4d657373616765"</span>, .sig = <span class="tok-str">"304602210096843dd03c22abd2f3b782b170239f90f277921becc117d0404a8e4e36230c28022100f2be378f526f74a543f67165976de9ed9a31214eb4d7e6db19e1ede123dd991d"</span>, .result = .valid },</span> <span class="line" id="L845"> .{ .key = <span class="tok-str">"04fffffff948081e6a0458dd8f9e738f2665ff9059ad6aac0708318c4ca9a7a4f55a8abcba2dda8474311ee54149b973cae0c0fb89557ad0bf78e6529a1663bd73"</span>, .msg = <span class="tok-str">"4d657373616765"</span>, .sig = <span class="tok-str">"30440220766456dce1857c906f9996af729339464d27e9d98edc2d0e3b760297067421f60220402385ecadae0d8081dccaf5d19037ec4e55376eced699e93646bfbbf19d0b41"</span>, .result = .valid },</span> <span class="line" id="L846"> .{ .key = <span class="tok-str">"04fffffff948081e6a0458dd8f9e738f2665ff9059ad6aac0708318c4ca9a7a4f55a8abcba2dda8474311ee54149b973cae0c0fb89557ad0bf78e6529a1663bd73"</span>, .msg = <span class="tok-str">"4d657373616765"</span>, .sig = <span class="tok-str">"3046022100c605c4b2edeab20419e6518a11b2dbc2b97ed8b07cced0b19c34f777de7b9fd9022100edf0f612c5f46e03c719647bc8af1b29b2cde2eda700fb1cff5e159d47326dba"</span>, .result = .valid },</span> <span class="line" id="L847"> .{ .key = <span class="tok-str">"04fffffff948081e6a0458dd8f9e738f2665ff9059ad6aac0708318c4ca9a7a4f55a8abcba2dda8474311ee54149b973cae0c0fb89557ad0bf78e6529a1663bd73"</span>, .msg = <span class="tok-str">"4d657373616765"</span>, .sig = <span class="tok-str">"3046022100d48b68e6cabfe03cf6141c9ac54141f210e64485d9929ad7b732bfe3b7eb8a84022100feedae50c61bd00e19dc26f9b7e2265e4508c389109ad2f208f0772315b6c941"</span>, .result = .valid },</span> <span class="line" id="L848"> .{ .key = <span class="tok-str">"0400000003fa15f963949d5f03a6f5c7f86f9e0015eeb23aebbff1173937ba748e1099872070e8e87c555fa13659cca5d7fadcfcb0023ea889548ca48af2ba7e71"</span>, .msg = <span class="tok-str">"4d657373616765"</span>, .sig = <span class="tok-str">"3046022100b7c81457d4aeb6aa65957098569f0479710ad7f6595d5874c35a93d12a5dd4c7022100b7961a0b652878c2d568069a432ca18a1a9199f2ca574dad4b9e3a05c0a1cdb3"</span>, .result = .valid },</span> <span class="line" id="L849"> .{ .key = <span class="tok-str">"0400000003fa15f963949d5f03a6f5c7f86f9e0015eeb23aebbff1173937ba748e1099872070e8e87c555fa13659cca5d7fadcfcb0023ea889548ca48af2ba7e71"</span>, .msg = <span class="tok-str">"4d657373616765"</span>, .sig = <span class="tok-str">"304402206b01332ddb6edfa9a30a1321d5858e1ee3cf97e263e669f8de5e9652e76ff3f702205939545fced457309a6a04ace2bd0f70139c8f7d86b02cb1cc58f9e69e96cd5a"</span>, .result = .valid },</span> <span class="line" id="L850"> .{ .key = <span class="tok-str">"0400000003fa15f963949d5f03a6f5c7f86f9e0015eeb23aebbff1173937ba748e1099872070e8e87c555fa13659cca5d7fadcfcb0023ea889548ca48af2ba7e71"</span>, .msg = <span class="tok-str">"4d657373616765"</span>, .sig = <span class="tok-str">"3046022100efdb884720eaeadc349f9fc356b6c0344101cd2fd8436b7d0e6a4fb93f106361022100f24bee6ad5dc05f7613975473aadf3aacba9e77de7d69b6ce48cb60d8113385d"</span>, .result = .valid },</span> <span class="line" id="L851"> .{ .key = <span class="tok-str">"04bcbb2914c79f045eaa6ecbbc612816b3be5d2d6796707d8125e9f851c18af015000000001352bb4a0fa2ea4cceb9ab63dd684ade5a1127bcf300a698a7193bc2"</span>, .msg = <span class="tok-str">"4d657373616765"</span>, .sig = <span class="tok-str">"3044022031230428405560dcb88fb5a646836aea9b23a23dd973dcbe8014c87b8b20eb0702200f9344d6e812ce166646747694a41b0aaf97374e19f3c5fb8bd7ae3d9bd0beff"</span>, .result = .valid },</span> <span class="line" id="L852"> .{ .key = <span class="tok-str">"04bcbb2914c79f045eaa6ecbbc612816b3be5d2d6796707d8125e9f851c18af015000000001352bb4a0fa2ea4cceb9ab63dd684ade5a1127bcf300a698a7193bc2"</span>, .msg = <span class="tok-str">"4d657373616765"</span>, .sig = <span class="tok-str">"3046022100caa797da65b320ab0d5c470cda0b36b294359c7db9841d679174db34c4855743022100cf543a62f23e212745391aaf7505f345123d2685ee3b941d3de6d9b36242e5a0"</span>, .result = .valid },</span> <span class="line" id="L853"> .{ .key = <span class="tok-str">"04bcbb2914c79f045eaa6ecbbc612816b3be5d2d6796707d8125e9f851c18af015000000001352bb4a0fa2ea4cceb9ab63dd684ade5a1127bcf300a698a7193bc2"</span>, .msg = <span class="tok-str">"4d657373616765"</span>, .sig = <span class="tok-str">"304502207e5f0ab5d900d3d3d7867657e5d6d36519bc54084536e7d21c336ed8001859450221009450c07f201faec94b82dfb322e5ac676688294aad35aa72e727ff0b19b646aa"</span>, .result = .valid },</span> <span class="line" id="L854"> .{ .key = <span class="tok-str">"04bcbb2914c79f045eaa6ecbbc612816b3be5d2d6796707d8125e9f851c18af015fffffffeecad44b6f05d15b33146549c2297b522a5eed8430cff596758e6c43d"</span>, .msg = <span class="tok-str">"4d657373616765"</span>, .sig = <span class="tok-str">"3046022100d7d70c581ae9e3f66dc6a480bf037ae23f8a1e4a2136fe4b03aa69f0ca25b35602210089c460f8a5a5c2bbba962c8a3ee833a413e85658e62a59e2af41d9127cc47224"</span>, .result = .valid },</span> <span class="line" id="L855"> .{ .key = <span class="tok-str">"04bcbb2914c79f045eaa6ecbbc612816b3be5d2d6796707d8125e9f851c18af015fffffffeecad44b6f05d15b33146549c2297b522a5eed8430cff596758e6c43d"</span>, .msg = <span class="tok-str">"4d657373616765"</span>, .sig = <span class="tok-str">"30440220341c1b9ff3c83dd5e0dfa0bf68bcdf4bb7aa20c625975e5eeee34bb396266b34022072b69f061b750fd5121b22b11366fad549c634e77765a017902a67099e0a4469"</span>, .result = .valid },</span> <span class="line" id="L856"> .{ .key = <span class="tok-str">"04bcbb2914c79f045eaa6ecbbc612816b3be5d2d6796707d8125e9f851c18af015fffffffeecad44b6f05d15b33146549c2297b522a5eed8430cff596758e6c43d"</span>, .msg = <span class="tok-str">"4d657373616765"</span>, .sig = <span class="tok-str">"3045022070bebe684cdcb5ca72a42f0d873879359bd1781a591809947628d313a3814f67022100aec03aca8f5587a4d535fa31027bbe9cc0e464b1c3577f4c2dcde6b2094798a9"</span>, .result = .valid },</span> <span class="line" id="L857"> };</span> <span class="line" id="L858"> <span class="tok-kw">for</span> (vectors) \|vector\| {</span> <span class="line" id="L859"> <span class="tok-kw">if</span> (tvTry(vector)) {</span> <span class="line" id="L860"> <span class="tok-kw">try</span> std.testing.expect(vector.result == .valid <span class="tok-kw">or</span> vector.result == .acceptable);</span> <span class="line" id="L861"> } <span class="tok-kw">else</span> \|_\| {</span> <span class="line" id="L862"> <span class="tok-kw">try</span> std.testing.expectEqual(vector.result, .invalid);</span> <span class="line" id="L863"> }</span> <span class="line" id="L864"> }</span> <span class="line" id="L865">}</span> <span class="line" id="L866"></span> <span class="line" id="L867"><span class="tok-kw">fn</span> <span class="tok-fn">tvTry</span>(vector: TestVector) !<span class="tok-type">void</span> {</span> <span class="line" id="L868"> <span class="tok-kw">const</span> Scheme = EcdsaP256Sha256;</span> <span class="line" id="L869"> <span class="tok-kw">var</span> key_sec1_: [Scheme.PublicKey.uncompressed_sec1_encoded_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L870"> <span class="tok-kw">const</span> key_sec1 = <span class="tok-kw">try</span> fmt.hexToBytes(&key_sec1_, vector.key);</span> <span class="line" id="L871"> <span class="tok-kw">const</span> pk = <span class="tok-kw">try</span> Scheme.PublicKey.fromSec1(key_sec1);</span> <span class="line" id="L872"> <span class="tok-kw">var</span> msg_: [<span class="tok-number">20</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L873"> <span class="tok-kw">const</span> msg = <span class="tok-kw">try</span> fmt.hexToBytes(&msg_, vector.msg);</span> <span class="line" id="L874"> <span class="tok-kw">var</span> sig_der_: [<span class="tok-number">152</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L875"> <span class="tok-kw">const</span> sig_der = <span class="tok-kw">try</span> fmt.hexToBytes(&sig_der_, vector.sig);</span> <span class="line" id="L876"> <span class="tok-kw">const</span> sig = <span class="tok-kw">try</span> Scheme.Signature.fromDer(sig_der);</span> <span class="line" id="L877"> <span class="tok-kw">try</span> sig.verify(msg, pk);</span> <span class="line" id="L878">}</span> <span class="line" id="L879"></span> <span class="line" id="L880"><span class="tok-kw">test</span> <span class="tok-str">"ECDSA - Sec1 encoding/decoding"</span> {</span> <span class="line" id="L881"> <span class="tok-kw">if</span> (builtin.zig_backend == .stage2_c) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SkipZigTest;</span> <span class="line" id="L882"></span> <span class="line" id="L883"> <span class="tok-kw">const</span> Scheme = EcdsaP384Sha384;</span> <span class="line" id="L884"> <span class="tok-kw">const</span> kp = <span class="tok-kw">try</span> Scheme.KeyPair.create(<span class="tok-null">null</span>);</span> <span class="line" id="L885"> <span class="tok-kw">const</span> pk = kp.public_key;</span> <span class="line" id="L886"> <span class="tok-kw">const</span> pk_compressed_sec1 = pk.toCompressedSec1();</span> <span class="line" id="L887"> <span class="tok-kw">const</span> pk_recovered1 = <span class="tok-kw">try</span> Scheme.PublicKey.fromSec1(&pk_compressed_sec1);</span> <span class="line" id="L888"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, &pk_recovered1.toCompressedSec1(), &pk_compressed_sec1);</span> <span class="line" id="L889"> <span class="tok-kw">const</span> pk_uncompressed_sec1 = pk.toUncompressedSec1();</span> <span class="line" id="L890"> <span class="tok-kw">const</span> pk_recovered2 = <span class="tok-kw">try</span> Scheme.PublicKey.fromSec1(&pk_uncompressed_sec1);</span> <span class="line" id="L891"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, &pk_recovered2.toUncompressedSec1(), &pk_uncompressed_sec1);</span> <span class="line" id="L892">}</span> <span class="line" id="L893"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/crypto/argon2.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/argon2.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-comment">// https://datatracker.ietf.org/doc/rfc9106</span> </span> <span class="line" id="L2"><span class="tok-comment">// https://github.com/golang/crypto/tree/master/argon2</span> </span> <span class="line" id="L3"><span class="tok-comment">// https://github.com/P-H-C/phc-winner-argon2</span> </span> <span class="line" id="L4"></span> <span class="line" id="L5"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L6"><span class="tok-kw">const</span> builtin = <span class="tok-builtin">@import</span>(<span class="tok-str">"builtin"</span>);</span> <span class="line" id="L7"></span> <span class="line" id="L8"><span class="tok-kw">const</span> blake2 = crypto.hash.blake2;</span> <span class="line" id="L9"><span class="tok-kw">const</span> crypto = std.crypto;</span> <span class="line" id="L10"><span class="tok-kw">const</span> math = std.math;</span> <span class="line" id="L11"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L12"><span class="tok-kw">const</span> phc_format = pwhash.phc_format;</span> <span class="line" id="L13"><span class="tok-kw">const</span> pwhash = crypto.pwhash;</span> <span class="line" id="L14"></span> <span class="line" id="L15"><span class="tok-kw">const</span> Thread = std.Thread;</span> <span class="line" id="L16"><span class="tok-kw">const</span> Blake2b512 = blake2.Blake2b512;</span> <span class="line" id="L17"><span class="tok-kw">const</span> Blocks = std.ArrayListAligned([block_length]<span class="tok-type">u64</span>, <span class="tok-number">16</span>);</span> <span class="line" id="L18"><span class="tok-kw">const</span> H0 = [Blake2b512.digest_length + <span class="tok-number">8</span>]<span class="tok-type">u8</span>;</span> <span class="line" id="L19"></span> <span class="line" id="L20"><span class="tok-kw">const</span> EncodingError = crypto.errors.EncodingError;</span> <span class="line" id="L21"><span class="tok-kw">const</span> KdfError = pwhash.KdfError;</span> <span class="line" id="L22"><span class="tok-kw">const</span> HasherError = pwhash.HasherError;</span> <span class="line" id="L23"><span class="tok-kw">const</span> Error = pwhash.Error;</span> <span class="line" id="L24"></span> <span class="line" id="L25"><span class="tok-kw">const</span> version = <span class="tok-number">0x13</span>;</span> <span class="line" id="L26"><span class="tok-kw">const</span> block_length = <span class="tok-number">128</span>;</span> <span class="line" id="L27"><span class="tok-kw">const</span> sync_points = <span class="tok-number">4</span>;</span> <span class="line" id="L28"><span class="tok-kw">const</span> max_int = <span class="tok-number">0xffff_ffff</span>;</span> <span class="line" id="L29"></span> <span class="line" id="L30"><span class="tok-kw">const</span> default_salt_len = <span class="tok-number">32</span>;</span> <span class="line" id="L31"><span class="tok-kw">const</span> default_hash_len = <span class="tok-number">32</span>;</span> <span class="line" id="L32"><span class="tok-kw">const</span> max_salt_len = <span class="tok-number">64</span>;</span> <span class="line" id="L33"><span class="tok-kw">const</span> max_hash_len = <span class="tok-number">64</span>;</span> <span class="line" id="L34"></span> <span class="line" id="L35"><span class="tok-comment">/// Argon2 type</span></span> <span class="line" id="L36"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Mode = <span class="tok-kw">enum</span> {</span> <span class="line" id="L37"> <span class="tok-comment">/// Argon2d is faster and uses data-depending memory access, which makes it highly resistant</span></span> <span class="line" id="L38"> <span class="tok-comment">/// against GPU cracking attacks and suitable for applications with no threats from side-channel</span></span> <span class="line" id="L39"> <span class="tok-comment">/// timing attacks (eg. cryptocurrencies).</span></span> <span class="line" id="L40"> argon2d,</span> <span class="line" id="L41"></span> <span class="line" id="L42"> <span class="tok-comment">/// Argon2i instead uses data-independent memory access, which is preferred for password</span></span> <span class="line" id="L43"> <span class="tok-comment">/// hashing and password-based key derivation, but it is slower as it makes more passes over</span></span> <span class="line" id="L44"> <span class="tok-comment">/// the memory to protect from tradeoff attacks.</span></span> <span class="line" id="L45"> argon2i,</span> <span class="line" id="L46"></span> <span class="line" id="L47"> <span class="tok-comment">/// Argon2id is a hybrid of Argon2i and Argon2d, using a combination of data-depending and</span></span> <span class="line" id="L48"> <span class="tok-comment">/// data-independent memory accesses, which gives some of Argon2i's resistance to side-channel</span></span> <span class="line" id="L49"> <span class="tok-comment">/// cache timing attacks and much of Argon2d's resistance to GPU cracking attacks.</span></span> <span class="line" id="L50"> argon2id,</span> <span class="line" id="L51">};</span> <span class="line" id="L52"></span> <span class="line" id="L53"><span class="tok-comment">/// Argon2 parameters</span></span> <span class="line" id="L54"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Params = <span class="tok-kw">struct</span> {</span> <span class="line" id="L55"> <span class="tok-kw">const</span> Self = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L56"></span> <span class="line" id="L57"> <span class="tok-comment">/// A [t]ime cost, which defines the amount of computation realized and therefore the execution</span></span> <span class="line" id="L58"> <span class="tok-comment">/// time, given in number of iterations.</span></span> <span class="line" id="L59"> t: <span class="tok-type">u32</span>,</span> <span class="line" id="L60"></span> <span class="line" id="L61"> <span class="tok-comment">/// A [m]emory cost, which defines the memory usage, given in kibibytes.</span></span> <span class="line" id="L62"> m: <span class="tok-type">u32</span>,</span> <span class="line" id="L63"></span> <span class="line" id="L64"> <span class="tok-comment">/// A [p]arallelism degree, which defines the number of parallel threads.</span></span> <span class="line" id="L65"> p: <span class="tok-type">u24</span>,</span> <span class="line" id="L66"></span> <span class="line" id="L67"> <span class="tok-comment">/// The [secret] parameter, which is used for keyed hashing. This allows a secret key to be input</span></span> <span class="line" id="L68"> <span class="tok-comment">/// at hashing time (from some external location) and be folded into the value of the hash. This</span></span> <span class="line" id="L69"> <span class="tok-comment">/// means that even if your salts and hashes are compromised, an attacker cannot brute-force to</span></span> <span class="line" id="L70"> <span class="tok-comment">/// find the password without the key.</span></span> <span class="line" id="L71"> secret: ?[]<span class="tok-kw">const</span> <span class="tok-type">u8</span> = <span class="tok-null">null</span>,</span> <span class="line" id="L72"></span> <span class="line" id="L73"> <span class="tok-comment">/// The [ad] parameter, which is used to fold any additional data into the hash value. Functionally,</span></span> <span class="line" id="L74"> <span class="tok-comment">/// this behaves almost exactly like the secret or salt parameters; the ad parameter is folding</span></span> <span class="line" id="L75"> <span class="tok-comment">/// into the value of the hash. However, this parameter is used for different data. The salt</span></span> <span class="line" id="L76"> <span class="tok-comment">/// should be a random string stored alongside your password. The secret should be a random key</span></span> <span class="line" id="L77"> <span class="tok-comment">/// only usable at hashing time. The ad is for any other data.</span></span> <span class="line" id="L78"> ad: ?[]<span class="tok-kw">const</span> <span class="tok-type">u8</span> = <span class="tok-null">null</span>,</span> <span class="line" id="L79"></span> <span class="line" id="L80"> <span class="tok-comment">/// Baseline parameters for interactive logins using argon2i type</span></span> <span class="line" id="L81"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> interactive_2i = Self.fromLimits(<span class="tok-number">4</span>, <span class="tok-number">33554432</span>);</span> <span class="line" id="L82"> <span class="tok-comment">/// Baseline parameters for normal usage using argon2i type</span></span> <span class="line" id="L83"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> moderate_2i = Self.fromLimits(<span class="tok-number">6</span>, <span class="tok-number">134217728</span>);</span> <span class="line" id="L84"> <span class="tok-comment">/// Baseline parameters for offline usage using argon2i type</span></span> <span class="line" id="L85"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> sensitive_2i = Self.fromLimits(<span class="tok-number">8</span>, <span class="tok-number">536870912</span>);</span> <span class="line" id="L86"></span> <span class="line" id="L87"> <span class="tok-comment">/// Baseline parameters for interactive logins using argon2id type</span></span> <span class="line" id="L88"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> interactive_2id = Self.fromLimits(<span class="tok-number">2</span>, <span class="tok-number">67108864</span>);</span> <span class="line" id="L89"> <span class="tok-comment">/// Baseline parameters for normal usage using argon2id type</span></span> <span class="line" id="L90"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> moderate_2id = Self.fromLimits(<span class="tok-number">3</span>, <span class="tok-number">268435456</span>);</span> <span class="line" id="L91"> <span class="tok-comment">/// Baseline parameters for offline usage using argon2id type</span></span> <span class="line" id="L92"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> sensitive_2id = Self.fromLimits(<span class="tok-number">4</span>, <span class="tok-number">1073741824</span>);</span> <span class="line" id="L93"></span> <span class="line" id="L94"> <span class="tok-comment">/// Create parameters from ops and mem limits, where mem_limit given in bytes</span></span> <span class="line" id="L95"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromLimits</span>(ops_limit: <span class="tok-type">u32</span>, mem_limit: <span class="tok-type">usize</span>) Self {</span> <span class="line" id="L96"> <span class="tok-kw">const</span> m = mem_limit / <span class="tok-number">1024</span>;</span> <span class="line" id="L97"> std.debug.assert(m <= max_int);</span> <span class="line" id="L98"> <span class="tok-kw">return</span> .{ .t = ops_limit, .m = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(m)), .p = <span class="tok-number">1</span> };</span> <span class="line" id="L99"> }</span> <span class="line" id="L100">};</span> <span class="line" id="L101"></span> <span class="line" id="L102"><span class="tok-kw">fn</span> <span class="tok-fn">initHash</span>(</span> <span class="line" id="L103"> password: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L104"> salt: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L105"> params: Params,</span> <span class="line" id="L106"> dk_len: <span class="tok-type">usize</span>,</span> <span class="line" id="L107"> mode: Mode,</span> <span class="line" id="L108">) H0 {</span> <span class="line" id="L109"> <span class="tok-kw">var</span> h0: H0 = <span class="tok-null">undefined</span>;</span> <span class="line" id="L110"> <span class="tok-kw">var</span> parameters: [<span class="tok-number">24</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L111"> <span class="tok-kw">var</span> tmp: [<span class="tok-number">4</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L112"> <span class="tok-kw">var</span> b2 = Blake2b512.init(.{});</span> <span class="line" id="L113"> mem.writeIntLittle(<span class="tok-type">u32</span>, parameters[<span class="tok-number">0</span>..<span class="tok-number">4</span>], params.p);</span> <span class="line" id="L114"> mem.writeIntLittle(<span class="tok-type">u32</span>, parameters[<span class="tok-number">4</span>..<span class="tok-number">8</span>], <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(dk_len)));</span> <span class="line" id="L115"> mem.writeIntLittle(<span class="tok-type">u32</span>, parameters[<span class="tok-number">8</span>..<span class="tok-number">12</span>], params.m);</span> <span class="line" id="L116"> mem.writeIntLittle(<span class="tok-type">u32</span>, parameters[<span class="tok-number">12</span>..<span class="tok-number">16</span>], params.t);</span> <span class="line" id="L117"> mem.writeIntLittle(<span class="tok-type">u32</span>, parameters[<span class="tok-number">16</span>..<span class="tok-number">20</span>], version);</span> <span class="line" id="L118"> mem.writeIntLittle(<span class="tok-type">u32</span>, parameters[<span class="tok-number">20</span>..<span class="tok-number">24</span>], <span class="tok-builtin">@intFromEnum</span>(mode));</span> <span class="line" id="L119"> b2.update(&parameters);</span> <span class="line" id="L120"> mem.writeIntLittle(<span class="tok-type">u32</span>, &tmp, <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(password.len)));</span> <span class="line" id="L121"> b2.update(&tmp);</span> <span class="line" id="L122"> b2.update(password);</span> <span class="line" id="L123"> mem.writeIntLittle(<span class="tok-type">u32</span>, &tmp, <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(salt.len)));</span> <span class="line" id="L124"> b2.update(&tmp);</span> <span class="line" id="L125"> b2.update(salt);</span> <span class="line" id="L126"> <span class="tok-kw">const</span> secret = params.secret <span class="tok-kw">orelse</span> <span class="tok-str">""</span>;</span> <span class="line" id="L127"> std.debug.assert(secret.len <= max_int);</span> <span class="line" id="L128"> mem.writeIntLittle(<span class="tok-type">u32</span>, &tmp, <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(secret.len)));</span> <span class="line" id="L129"> b2.update(&tmp);</span> <span class="line" id="L130"> b2.update(secret);</span> <span class="line" id="L131"> <span class="tok-kw">const</span> ad = params.ad <span class="tok-kw">orelse</span> <span class="tok-str">""</span>;</span> <span class="line" id="L132"> std.debug.assert(ad.len <= max_int);</span> <span class="line" id="L133"> mem.writeIntLittle(<span class="tok-type">u32</span>, &tmp, <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(ad.len)));</span> <span class="line" id="L134"> b2.update(&tmp);</span> <span class="line" id="L135"> b2.update(ad);</span> <span class="line" id="L136"> b2.final(h0[<span class="tok-number">0</span>..Blake2b512.digest_length]);</span> <span class="line" id="L137"> <span class="tok-kw">return</span> h0;</span> <span class="line" id="L138">}</span> <span class="line" id="L139"></span> <span class="line" id="L140"><span class="tok-kw">fn</span> <span class="tok-fn">blake2bLong</span>(out: []<span class="tok-type">u8</span>, in: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L141"> <span class="tok-kw">const</span> H = Blake2b512;</span> <span class="line" id="L142"> <span class="tok-kw">var</span> outlen_bytes: [<span class="tok-number">4</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L143"> mem.writeIntLittle(<span class="tok-type">u32</span>, &outlen_bytes, <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(out.len)));</span> <span class="line" id="L144"></span> <span class="line" id="L145"> <span class="tok-kw">var</span> out_buf: [H.digest_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L146"></span> <span class="line" id="L147"> <span class="tok-kw">if</span> (out.len <= H.digest_length) {</span> <span class="line" id="L148"> <span class="tok-kw">var</span> h = H.init(.{ .expected_out_bits = out.len * <span class="tok-number">8</span> });</span> <span class="line" id="L149"> h.update(&outlen_bytes);</span> <span class="line" id="L150"> h.update(in);</span> <span class="line" id="L151"> h.final(&out_buf);</span> <span class="line" id="L152"> <span class="tok-builtin">@memcpy</span>(out, out_buf[<span class="tok-number">0</span>..out.len]);</span> <span class="line" id="L153"> <span class="tok-kw">return</span>;</span> <span class="line" id="L154"> }</span> <span class="line" id="L155"></span> <span class="line" id="L156"> <span class="tok-kw">var</span> h = H.init(.{});</span> <span class="line" id="L157"> h.update(&outlen_bytes);</span> <span class="line" id="L158"> h.update(in);</span> <span class="line" id="L159"> h.final(&out_buf);</span> <span class="line" id="L160"> <span class="tok-kw">var</span> out_slice = out;</span> <span class="line" id="L161"> out_slice[<span class="tok-number">0</span> .. H.digest_length / <span class="tok-number">2</span>].* = out_buf[<span class="tok-number">0</span> .. H.digest_length / <span class="tok-number">2</span>].;</span> <span class="line" id="L162"> out_slice = out_slice[H.digest_length / <span class="tok-number">2</span> ..];</span> <span class="line" id="L163"></span> <span class="line" id="L164"> <span class="tok-kw">var</span> in_buf: [H.digest_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L165"> <span class="tok-kw">while</span> (out_slice.len > H.digest_length) {</span> <span class="line" id="L166"> in_buf = out_buf;</span> <span class="line" id="L167"> H.hash(&in_buf, &out_buf, .{});</span> <span class="line" id="L168"> out_slice[<span class="tok-number">0</span> .. H.digest_length / <span class="tok-number">2</span>]. = out_buf[<span class="tok-number">0</span> .. H.digest_length / <span class="tok-number">2</span>].;</span> <span class="line" id="L169"> out_slice = out_slice[H.digest_length / <span class="tok-number">2</span> ..];</span> <span class="line" id="L170"> }</span> <span class="line" id="L171"> in_buf = out_buf;</span> <span class="line" id="L172"> H.hash(&in_buf, &out_buf, .{ .expected_out_bits = out_slice.len <span class="tok-number">8</span> });</span> <span class="line" id="L173"> <span class="tok-builtin">@memcpy</span>(out_slice, out_buf[<span class="tok-number">0</span>..out_slice.len]);</span> <span class="line" id="L174">}</span> <span class="line" id="L175"></span> <span class="line" id="L176"><span class="tok-kw">fn</span> <span class="tok-fn">initBlocks</span>(</span> <span class="line" id="L177"> blocks: Blocks,</span> <span class="line" id="L178"> h0: H0,</span> <span class="line" id="L179"> memory: <span class="tok-type">u32</span>,</span> <span class="line" id="L180"> threads: <span class="tok-type">u24</span>,</span> <span class="line" id="L181">) <span class="tok-type">void</span> {</span> <span class="line" id="L182"> <span class="tok-kw">var</span> block0: [<span class="tok-number">1024</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L183"> <span class="tok-kw">var</span> lane: <span class="tok-type">u24</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L184"> <span class="tok-kw">while</span> (lane < threads) : (lane += <span class="tok-number">1</span>) {</span> <span class="line" id="L185"> <span class="tok-kw">const</span> j = lane * (memory / threads);</span> <span class="line" id="L186"> mem.writeIntLittle(<span class="tok-type">u32</span>, h0[Blake2b512.digest_length + <span class="tok-number">4</span> ..][<span class="tok-number">0</span>..<span class="tok-number">4</span>], lane);</span> <span class="line" id="L187"></span> <span class="line" id="L188"> mem.writeIntLittle(<span class="tok-type">u32</span>, h0[Blake2b512.digest_length..][<span class="tok-number">0</span>..<span class="tok-number">4</span>], <span class="tok-number">0</span>);</span> <span class="line" id="L189"> blake2bLong(&block0, h0);</span> <span class="line" id="L190"> <span class="tok-kw">for</span> (&blocks.items[j + <span class="tok-number">0</span>], <span class="tok-number">0</span>..) \|v, i\| {</span> <span class="line" id="L191"> v. = mem.readIntLittle(<span class="tok-type">u64</span>, block0[i * <span class="tok-number">8</span> ..][<span class="tok-number">0</span>..<span class="tok-number">8</span>]);</span> <span class="line" id="L192"> }</span> <span class="line" id="L193"></span> <span class="line" id="L194"> mem.writeIntLittle(<span class="tok-type">u32</span>, h0[Blake2b512.digest_length..][<span class="tok-number">0</span>..<span class="tok-number">4</span>], <span class="tok-number">1</span>);</span> <span class="line" id="L195"> blake2bLong(&block0, h0);</span> <span class="line" id="L196"> <span class="tok-kw">for</span> (&blocks.items[j + <span class="tok-number">1</span>], <span class="tok-number">0</span>..) \|v, i\| {</span> <span class="line" id="L197"> v. = mem.readIntLittle(<span class="tok-type">u64</span>, block0[i * <span class="tok-number">8</span> ..][<span class="tok-number">0</span>..<span class="tok-number">8</span>]);</span> <span class="line" id="L198"> }</span> <span class="line" id="L199"> }</span> <span class="line" id="L200">}</span> <span class="line" id="L201"></span> <span class="line" id="L202"><span class="tok-kw">fn</span> <span class="tok-fn">processBlocks</span>(</span> <span class="line" id="L203"> allocator: mem.Allocator,</span> <span class="line" id="L204"> blocks: Blocks,</span> <span class="line" id="L205"> time: <span class="tok-type">u32</span>,</span> <span class="line" id="L206"> memory: <span class="tok-type">u32</span>,</span> <span class="line" id="L207"> threads: <span class="tok-type">u24</span>,</span> <span class="line" id="L208"> mode: Mode,</span> <span class="line" id="L209">) KdfError!<span class="tok-type">void</span> {</span> <span class="line" id="L210"> <span class="tok-kw">const</span> lanes = memory / threads;</span> <span class="line" id="L211"> <span class="tok-kw">const</span> segments = lanes / sync_points;</span> <span class="line" id="L212"></span> <span class="line" id="L213"> <span class="tok-kw">if</span> (builtin.single_threaded <span class="tok-kw">or</span> threads == <span class="tok-number">1</span>) {</span> <span class="line" id="L214"> processBlocksSt(blocks, time, memory, threads, mode, lanes, segments);</span> <span class="line" id="L215"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L216"> <span class="tok-kw">try</span> processBlocksMt(allocator, blocks, time, memory, threads, mode, lanes, segments);</span> <span class="line" id="L217"> }</span> <span class="line" id="L218">}</span> <span class="line" id="L219"></span> <span class="line" id="L220"><span class="tok-kw">fn</span> <span class="tok-fn">processBlocksSt</span>(</span> <span class="line" id="L221"> blocks: Blocks,</span> <span class="line" id="L222"> time: <span class="tok-type">u32</span>,</span> <span class="line" id="L223"> memory: <span class="tok-type">u32</span>,</span> <span class="line" id="L224"> threads: <span class="tok-type">u24</span>,</span> <span class="line" id="L225"> mode: Mode,</span> <span class="line" id="L226"> lanes: <span class="tok-type">u32</span>,</span> <span class="line" id="L227"> segments: <span class="tok-type">u32</span>,</span> <span class="line" id="L228">) <span class="tok-type">void</span> {</span> <span class="line" id="L229"> <span class="tok-kw">var</span> n: <span class="tok-type">u32</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L230"> <span class="tok-kw">while</span> (n < time) : (n += <span class="tok-number">1</span>) {</span> <span class="line" id="L231"> <span class="tok-kw">var</span> slice: <span class="tok-type">u32</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L232"> <span class="tok-kw">while</span> (slice < sync_points) : (slice += <span class="tok-number">1</span>) {</span> <span class="line" id="L233"> <span class="tok-kw">var</span> lane: <span class="tok-type">u24</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L234"> <span class="tok-kw">while</span> (lane < threads) : (lane += <span class="tok-number">1</span>) {</span> <span class="line" id="L235"> processSegment(blocks, time, memory, threads, mode, lanes, segments, n, slice, lane);</span> <span class="line" id="L236"> }</span> <span class="line" id="L237"> }</span> <span class="line" id="L238"> }</span> <span class="line" id="L239">}</span> <span class="line" id="L240"></span> <span class="line" id="L241"><span class="tok-kw">fn</span> <span class="tok-fn">processBlocksMt</span>(</span> <span class="line" id="L242"> allocator: mem.Allocator,</span> <span class="line" id="L243"> blocks: Blocks,</span> <span class="line" id="L244"> time: <span class="tok-type">u32</span>,</span> <span class="line" id="L245"> memory: <span class="tok-type">u32</span>,</span> <span class="line" id="L246"> threads: <span class="tok-type">u24</span>,</span> <span class="line" id="L247"> mode: Mode,</span> <span class="line" id="L248"> lanes: <span class="tok-type">u32</span>,</span> <span class="line" id="L249"> segments: <span class="tok-type">u32</span>,</span> <span class="line" id="L250">) KdfError!<span class="tok-type">void</span> {</span> <span class="line" id="L251"> <span class="tok-kw">var</span> threads_list = <span class="tok-kw">try</span> std.ArrayList(Thread).initCapacity(allocator, threads);</span> <span class="line" id="L252"> <span class="tok-kw">defer</span> threads_list.deinit();</span> <span class="line" id="L253"></span> <span class="line" id="L254"> <span class="tok-kw">var</span> n: <span class="tok-type">u32</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L255"> <span class="tok-kw">while</span> (n < time) : (n += <span class="tok-number">1</span>) {</span> <span class="line" id="L256"> <span class="tok-kw">var</span> slice: <span class="tok-type">u32</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L257"> <span class="tok-kw">while</span> (slice < sync_points) : (slice += <span class="tok-number">1</span>) {</span> <span class="line" id="L258"> <span class="tok-kw">var</span> lane: <span class="tok-type">u24</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L259"> <span class="tok-kw">while</span> (lane < threads) : (lane += <span class="tok-number">1</span>) {</span> <span class="line" id="L260"> <span class="tok-kw">const</span> thread = <span class="tok-kw">try</span> Thread.spawn(.{}, processSegment, .{</span> <span class="line" id="L261"> blocks, time, memory, threads, mode, lanes, segments, n, slice, lane,</span> <span class="line" id="L262"> });</span> <span class="line" id="L263"> threads_list.appendAssumeCapacity(thread);</span> <span class="line" id="L264"> }</span> <span class="line" id="L265"> lane = <span class="tok-number">0</span>;</span> <span class="line" id="L266"> <span class="tok-kw">while</span> (lane < threads) : (lane += <span class="tok-number">1</span>) {</span> <span class="line" id="L267"> threads_list.items[lane].join();</span> <span class="line" id="L268"> }</span> <span class="line" id="L269"> threads_list.clearRetainingCapacity();</span> <span class="line" id="L270"> }</span> <span class="line" id="L271"> }</span> <span class="line" id="L272">}</span> <span class="line" id="L273"></span> <span class="line" id="L274"><span class="tok-kw">fn</span> <span class="tok-fn">processSegment</span>(</span> <span class="line" id="L275"> blocks: Blocks,</span> <span class="line" id="L276"> passes: <span class="tok-type">u32</span>,</span> <span class="line" id="L277"> memory: <span class="tok-type">u32</span>,</span> <span class="line" id="L278"> threads: <span class="tok-type">u24</span>,</span> <span class="line" id="L279"> mode: Mode,</span> <span class="line" id="L280"> lanes: <span class="tok-type">u32</span>,</span> <span class="line" id="L281"> segments: <span class="tok-type">u32</span>,</span> <span class="line" id="L282"> n: <span class="tok-type">u32</span>,</span> <span class="line" id="L283"> slice: <span class="tok-type">u32</span>,</span> <span class="line" id="L284"> lane: <span class="tok-type">u24</span>,</span> <span class="line" id="L285">) <span class="tok-type">void</span> {</span> <span class="line" id="L286"> <span class="tok-kw">var</span> addresses <span class="tok-kw">align</span>(<span class="tok-number">16</span>) = [_]<span class="tok-type">u64</span>{<span class="tok-number">0</span>} block_length;</span> <span class="line" id="L287"> <span class="tok-kw">var</span> in <span class="tok-kw">align</span>(<span class="tok-number">16</span>) = [_]<span class="tok-type">u64</span>{<span class="tok-number">0</span>} block_length;</span> <span class="line" id="L288"> <span class="tok-kw">const</span> zero <span class="tok-kw">align</span>(<span class="tok-number">16</span>) = [_]<span class="tok-type">u64</span>{<span class="tok-number">0</span>} ** block_length;</span> <span class="line" id="L289"> <span class="tok-kw">if</span> (mode == .argon2i <span class="tok-kw">or</span> (mode == .argon2id <span class="tok-kw">and</span> n == <span class="tok-number">0</span> <span class="tok-kw">and</span> slice < sync_points / <span class="tok-number">2</span>)) {</span> <span class="line" id="L290"> in[<span class="tok-number">0</span>] = n;</span> <span class="line" id="L291"> in[<span class="tok-number">1</span>] = lane;</span> <span class="line" id="L292"> in[<span class="tok-number">2</span>] = slice;</span> <span class="line" id="L293"> in[<span class="tok-number">3</span>] = memory;</span> <span class="line" id="L294"> in[<span class="tok-number">4</span>] = passes;</span> <span class="line" id="L295"> in[<span class="tok-number">5</span>] = <span class="tok-builtin">@intFromEnum</span>(mode);</span> <span class="line" id="L296"> }</span> <span class="line" id="L297"> <span class="tok-kw">var</span> index: <span class="tok-type">u32</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L298"> <span class="tok-kw">if</span> (n == <span class="tok-number">0</span> <span class="tok-kw">and</span> slice == <span class="tok-number">0</span>) {</span> <span class="line" id="L299"> index = <span class="tok-number">2</span>;</span> <span class="line" id="L300"> <span class="tok-kw">if</span> (mode == .argon2i <span class="tok-kw">or</span> mode == .argon2id) {</span> <span class="line" id="L301"> in[<span class="tok-number">6</span>] += <span class="tok-number">1</span>;</span> <span class="line" id="L302"> processBlock(&addresses, &in, &zero);</span> <span class="line" id="L303"> processBlock(&addresses, &addresses, &zero);</span> <span class="line" id="L304"> }</span> <span class="line" id="L305"> }</span> <span class="line" id="L306"> <span class="tok-kw">var</span> offset = lane * lanes + slice * segments + index;</span> <span class="line" id="L307"> <span class="tok-kw">var</span> random: <span class="tok-type">u64</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L308"> <span class="tok-kw">while</span> (index < segments) : ({</span> <span class="line" id="L309"> index += <span class="tok-number">1</span>;</span> <span class="line" id="L310"> offset += <span class="tok-number">1</span>;</span> <span class="line" id="L311"> }) {</span> <span class="line" id="L312"> <span class="tok-kw">var</span> prev = offset -% <span class="tok-number">1</span>;</span> <span class="line" id="L313"> <span class="tok-kw">if</span> (index == <span class="tok-number">0</span> <span class="tok-kw">and</span> slice == <span class="tok-number">0</span>) {</span> <span class="line" id="L314"> prev +%= lanes;</span> <span class="line" id="L315"> }</span> <span class="line" id="L316"> <span class="tok-kw">if</span> (mode == .argon2i <span class="tok-kw">or</span> (mode == .argon2id <span class="tok-kw">and</span> n == <span class="tok-number">0</span> <span class="tok-kw">and</span> slice < sync_points / <span class="tok-number">2</span>)) {</span> <span class="line" id="L317"> <span class="tok-kw">if</span> (index % block_length == <span class="tok-number">0</span>) {</span> <span class="line" id="L318"> in[<span class="tok-number">6</span>] += <span class="tok-number">1</span>;</span> <span class="line" id="L319"> processBlock(&addresses, &in, &zero);</span> <span class="line" id="L320"> processBlock(&addresses, &addresses, &zero);</span> <span class="line" id="L321"> }</span> <span class="line" id="L322"> random = addresses[index % block_length];</span> <span class="line" id="L323"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L324"> random = blocks.items[prev][<span class="tok-number">0</span>];</span> <span class="line" id="L325"> }</span> <span class="line" id="L326"> <span class="tok-kw">const</span> new_offset = indexAlpha(random, lanes, segments, threads, n, slice, lane, index);</span> <span class="line" id="L327"> processBlockXor(&blocks.items[offset], &blocks.items[prev], &blocks.items[new_offset]);</span> <span class="line" id="L328"> }</span> <span class="line" id="L329">}</span> <span class="line" id="L330"></span> <span class="line" id="L331"><span class="tok-kw">fn</span> <span class="tok-fn">processBlock</span>(</span> <span class="line" id="L332"> out: <span class="tok-kw">align</span>(<span class="tok-number">16</span>) [block_length]<span class="tok-type">u64</span>,</span> <span class="line" id="L333"> in1: <span class="tok-kw">align</span>(<span class="tok-number">16</span>) <span class="tok-kw">const</span> [block_length]<span class="tok-type">u64</span>,</span> <span class="line" id="L334"> in2: <span class="tok-kw">align</span>(<span class="tok-number">16</span>) <span class="tok-kw">const</span> [block_length]<span class="tok-type">u64</span>,</span> <span class="line" id="L335">) <span class="tok-type">void</span> {</span> <span class="line" id="L336"> processBlockGeneric(out, in1, in2, <span class="tok-null">false</span>);</span> <span class="line" id="L337">}</span> <span class="line" id="L338"></span> <span class="line" id="L339"><span class="tok-kw">fn</span> <span class="tok-fn">processBlockXor</span>(</span> <span class="line" id="L340"> out: [block_length]<span class="tok-type">u64</span>,</span> <span class="line" id="L341"> in1: <span class="tok-kw">const</span> [block_length]<span class="tok-type">u64</span>,</span> <span class="line" id="L342"> in2: <span class="tok-kw">const</span> [block_length]<span class="tok-type">u64</span>,</span> <span class="line" id="L343">) <span class="tok-type">void</span> {</span> <span class="line" id="L344"> processBlockGeneric(out, in1, in2, <span class="tok-null">true</span>);</span> <span class="line" id="L345">}</span> <span class="line" id="L346"></span> <span class="line" id="L347"><span class="tok-kw">fn</span> <span class="tok-fn">processBlockGeneric</span>(</span> <span class="line" id="L348"> out: [block_length]<span class="tok-type">u64</span>,</span> <span class="line" id="L349"> in1: <span class="tok-kw">const</span> [block_length]<span class="tok-type">u64</span>,</span> <span class="line" id="L350"> in2: <span class="tok-kw">const</span> [block_length]<span class="tok-type">u64</span>,</span> <span class="line" id="L351"> <span class="tok-kw">comptime</span> xor: <span class="tok-type">bool</span>,</span> <span class="line" id="L352">) <span class="tok-type">void</span> {</span> <span class="line" id="L353"> <span class="tok-kw">var</span> t: [block_length]<span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L354"> <span class="tok-kw">for</span> (&t, <span class="tok-number">0</span>..) \|v, i\| {</span> <span class="line" id="L355"> v.* = in1[i] ^ in2[i];</span> <span class="line" id="L356"> }</span> <span class="line" id="L357"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L358"> <span class="tok-kw">while</span> (i < block_length) : (i += <span class="tok-number">16</span>) {</span> <span class="line" id="L359"> blamkaGeneric(t[i..][<span class="tok-number">0</span>..<span class="tok-number">16</span>]);</span> <span class="line" id="L360"> }</span> <span class="line" id="L361"> i = <span class="tok-number">0</span>;</span> <span class="line" id="L362"> <span class="tok-kw">var</span> buffer: [<span class="tok-number">16</span>]<span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L363"> <span class="tok-kw">while</span> (i < block_length / <span class="tok-number">8</span>) : (i += <span class="tok-number">2</span>) {</span> <span class="line" id="L364"> <span class="tok-kw">var</span> j: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L365"> <span class="tok-kw">while</span> (j < block_length / <span class="tok-number">8</span>) : (j += <span class="tok-number">2</span>) {</span> <span class="line" id="L366"> buffer[j] = t[j * <span class="tok-number">8</span> + i];</span> <span class="line" id="L367"> buffer[j + <span class="tok-number">1</span>] = t[j * <span class="tok-number">8</span> + i + <span class="tok-number">1</span>];</span> <span class="line" id="L368"> }</span> <span class="line" id="L369"> blamkaGeneric(&buffer);</span> <span class="line" id="L370"> j = <span class="tok-number">0</span>;</span> <span class="line" id="L371"> <span class="tok-kw">while</span> (j < block_length / <span class="tok-number">8</span>) : (j += <span class="tok-number">2</span>) {</span> <span class="line" id="L372"> t[j * <span class="tok-number">8</span> + i] = buffer[j];</span> <span class="line" id="L373"> t[j * <span class="tok-number">8</span> + i + <span class="tok-number">1</span>] = buffer[j + <span class="tok-number">1</span>];</span> <span class="line" id="L374"> }</span> <span class="line" id="L375"> }</span> <span class="line" id="L376"> <span class="tok-kw">if</span> (xor) {</span> <span class="line" id="L377"> <span class="tok-kw">for</span> (t, <span class="tok-number">0</span>..) \|v, j\| {</span> <span class="line" id="L378"> out[j] ^= in1[j] ^ in2[j] ^ v;</span> <span class="line" id="L379"> }</span> <span class="line" id="L380"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L381"> <span class="tok-kw">for</span> (t, <span class="tok-number">0</span>..) \|v, j\| {</span> <span class="line" id="L382"> out[j] = in1[j] ^ in2[j] ^ v;</span> <span class="line" id="L383"> }</span> <span class="line" id="L384"> }</span> <span class="line" id="L385">}</span> <span class="line" id="L386"></span> <span class="line" id="L387"><span class="tok-kw">const</span> QuarterRound = <span class="tok-kw">struct</span> { a: <span class="tok-type">usize</span>, b: <span class="tok-type">usize</span>, c: <span class="tok-type">usize</span>, d: <span class="tok-type">usize</span> };</span> <span class="line" id="L388"></span> <span class="line" id="L389"><span class="tok-kw">fn</span> <span class="tok-fn">Rp</span>(a: <span class="tok-type">usize</span>, b: <span class="tok-type">usize</span>, c: <span class="tok-type">usize</span>, d: <span class="tok-type">usize</span>) QuarterRound {</span> <span class="line" id="L390"> <span class="tok-kw">return</span> .{ .a = a, .b = b, .c = c, .d = d };</span> <span class="line" id="L391">}</span> <span class="line" id="L392"></span> <span class="line" id="L393"><span class="tok-kw">fn</span> <span class="tok-fn">fBlaMka</span>(x: <span class="tok-type">u64</span>, y: <span class="tok-type">u64</span>) <span class="tok-type">u64</span> {</span> <span class="line" id="L394"> <span class="tok-kw">const</span> xy = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@truncate</span>(x))) * <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@truncate</span>(y)));</span> <span class="line" id="L395"> <span class="tok-kw">return</span> x +% y +% <span class="tok-number">2</span> % xy;</span> <span class="line" id="L396">}</span> <span class="line" id="L397"></span> <span class="line" id="L398"><span class="tok-kw">fn</span> <span class="tok-fn">blamkaGeneric</span>(x: [<span class="tok-number">16</span>]<span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L399"> <span class="tok-kw">const</span> rounds = <span class="tok-kw">comptime</span> [_]QuarterRound{</span> <span class="line" id="L400"> Rp(<span class="tok-number">0</span>, <span class="tok-number">4</span>, <span class="tok-number">8</span>, <span class="tok-number">12</span>),</span> <span class="line" id="L401"> Rp(<span class="tok-number">1</span>, <span class="tok-number">5</span>, <span class="tok-number">9</span>, <span class="tok-number">13</span>),</span> <span class="line" id="L402"> Rp(<span class="tok-number">2</span>, <span class="tok-number">6</span>, <span class="tok-number">10</span>, <span class="tok-number">14</span>),</span> <span class="line" id="L403"> Rp(<span class="tok-number">3</span>, <span class="tok-number">7</span>, <span class="tok-number">11</span>, <span class="tok-number">15</span>),</span> <span class="line" id="L404"> Rp(<span class="tok-number">0</span>, <span class="tok-number">5</span>, <span class="tok-number">10</span>, <span class="tok-number">15</span>),</span> <span class="line" id="L405"> Rp(<span class="tok-number">1</span>, <span class="tok-number">6</span>, <span class="tok-number">11</span>, <span class="tok-number">12</span>),</span> <span class="line" id="L406"> Rp(<span class="tok-number">2</span>, <span class="tok-number">7</span>, <span class="tok-number">8</span>, <span class="tok-number">13</span>),</span> <span class="line" id="L407"> Rp(<span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">9</span>, <span class="tok-number">14</span>),</span> <span class="line" id="L408"> };</span> <span class="line" id="L409"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (rounds) \|r\| {</span> <span class="line" id="L410"> x[r.a] = fBlaMka(x[r.a], x[r.b]);</span> <span class="line" id="L411"> x[r.d] = math.rotr(<span class="tok-type">u64</span>, x[r.d] ^ x[r.a], <span class="tok-number">32</span>);</span> <span class="line" id="L412"> x[r.c] = fBlaMka(x[r.c], x[r.d]);</span> <span class="line" id="L413"> x[r.b] = math.rotr(<span class="tok-type">u64</span>, x[r.b] ^ x[r.c], <span class="tok-number">24</span>);</span> <span class="line" id="L414"> x[r.a] = fBlaMka(x[r.a], x[r.b]);</span> <span class="line" id="L415"> x[r.d] = math.rotr(<span class="tok-type">u64</span>, x[r.d] ^ x[r.a], <span class="tok-number">16</span>);</span> <span class="line" id="L416"> x[r.c] = fBlaMka(x[r.c], x[r.d]);</span> <span class="line" id="L417"> x[r.b] = math.rotr(<span class="tok-type">u64</span>, x[r.b] ^ x[r.c], <span class="tok-number">63</span>);</span> <span class="line" id="L418"> }</span> <span class="line" id="L419">}</span> <span class="line" id="L420"></span> <span class="line" id="L421"><span class="tok-kw">fn</span> <span class="tok-fn">finalize</span>(</span> <span class="line" id="L422"> blocks: Blocks,</span> <span class="line" id="L423"> memory: <span class="tok-type">u32</span>,</span> <span class="line" id="L424"> threads: <span class="tok-type">u24</span>,</span> <span class="line" id="L425"> out: []<span class="tok-type">u8</span>,</span> <span class="line" id="L426">) <span class="tok-type">void</span> {</span> <span class="line" id="L427"> <span class="tok-kw">const</span> lanes = memory / threads;</span> <span class="line" id="L428"> <span class="tok-kw">var</span> lane: <span class="tok-type">u24</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L429"> <span class="tok-kw">while</span> (lane < threads - <span class="tok-number">1</span>) : (lane += <span class="tok-number">1</span>) {</span> <span class="line" id="L430"> <span class="tok-kw">for</span> (blocks.items[(lane lanes) + lanes - <span class="tok-number">1</span>], <span class="tok-number">0</span>..) \|v, i\| {</span> <span class="line" id="L431"> blocks.items[memory - <span class="tok-number">1</span>][i] ^= v;</span> <span class="line" id="L432"> }</span> <span class="line" id="L433"> }</span> <span class="line" id="L434"> <span class="tok-kw">var</span> block: [<span class="tok-number">1024</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L435"> <span class="tok-kw">for</span> (blocks.items[memory - <span class="tok-number">1</span>], <span class="tok-number">0</span>..) \|v, i\| {</span> <span class="line" id="L436"> mem.writeIntLittle(<span class="tok-type">u64</span>, block[i * <span class="tok-number">8</span> ..][<span class="tok-number">0</span>..<span class="tok-number">8</span>], v);</span> <span class="line" id="L437"> }</span> <span class="line" id="L438"> blake2bLong(out, &block);</span> <span class="line" id="L439">}</span> <span class="line" id="L440"></span> <span class="line" id="L441"><span class="tok-kw">fn</span> <span class="tok-fn">indexAlpha</span>(</span> <span class="line" id="L442"> rand: <span class="tok-type">u64</span>,</span> <span class="line" id="L443"> lanes: <span class="tok-type">u32</span>,</span> <span class="line" id="L444"> segments: <span class="tok-type">u32</span>,</span> <span class="line" id="L445"> threads: <span class="tok-type">u24</span>,</span> <span class="line" id="L446"> n: <span class="tok-type">u32</span>,</span> <span class="line" id="L447"> slice: <span class="tok-type">u32</span>,</span> <span class="line" id="L448"> lane: <span class="tok-type">u24</span>,</span> <span class="line" id="L449"> index: <span class="tok-type">u32</span>,</span> <span class="line" id="L450">) <span class="tok-type">u32</span> {</span> <span class="line" id="L451"> <span class="tok-kw">var</span> ref_lane = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(rand >> <span class="tok-number">32</span>)) % threads;</span> <span class="line" id="L452"> <span class="tok-kw">if</span> (n == <span class="tok-number">0</span> <span class="tok-kw">and</span> slice == <span class="tok-number">0</span>) {</span> <span class="line" id="L453"> ref_lane = lane;</span> <span class="line" id="L454"> }</span> <span class="line" id="L455"> <span class="tok-kw">var</span> m = <span class="tok-number">3</span> * segments;</span> <span class="line" id="L456"> <span class="tok-kw">var</span> s = ((slice + <span class="tok-number">1</span>) % sync_points) * segments;</span> <span class="line" id="L457"> <span class="tok-kw">if</span> (lane == ref_lane) {</span> <span class="line" id="L458"> m += index;</span> <span class="line" id="L459"> }</span> <span class="line" id="L460"> <span class="tok-kw">if</span> (n == <span class="tok-number">0</span>) {</span> <span class="line" id="L461"> m = slice * segments;</span> <span class="line" id="L462"> s = <span class="tok-number">0</span>;</span> <span class="line" id="L463"> <span class="tok-kw">if</span> (slice == <span class="tok-number">0</span> <span class="tok-kw">or</span> lane == ref_lane) {</span> <span class="line" id="L464"> m += index;</span> <span class="line" id="L465"> }</span> <span class="line" id="L466"> }</span> <span class="line" id="L467"> <span class="tok-kw">if</span> (index == <span class="tok-number">0</span> <span class="tok-kw">or</span> lane == ref_lane) {</span> <span class="line" id="L468"> m -= <span class="tok-number">1</span>;</span> <span class="line" id="L469"> }</span> <span class="line" id="L470"> <span class="tok-kw">var</span> p = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@truncate</span>(rand)));</span> <span class="line" id="L471"> p = (p * p) >> <span class="tok-number">32</span>;</span> <span class="line" id="L472"> p = (p * m) >> <span class="tok-number">32</span>;</span> <span class="line" id="L473"> <span class="tok-kw">return</span> ref_lane * lanes + <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(((s + m - (p + <span class="tok-number">1</span>)) % lanes)));</span> <span class="line" id="L474">}</span> <span class="line" id="L475"></span> <span class="line" id="L476"><span class="tok-comment">/// Derives a key from the password, salt, and argon2 parameters.</span></span> <span class="line" id="L477"><span class="tok-comment">///</span></span> <span class="line" id="L478"><span class="tok-comment">/// Derived key has to be at least 4 bytes length.</span></span> <span class="line" id="L479"><span class="tok-comment">///</span></span> <span class="line" id="L480"><span class="tok-comment">/// Salt has to be at least 8 bytes length.</span></span> <span class="line" id="L481"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">kdf</span>(</span> <span class="line" id="L482"> allocator: mem.Allocator,</span> <span class="line" id="L483"> derived_key: []<span class="tok-type">u8</span>,</span> <span class="line" id="L484"> password: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L485"> salt: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L486"> params: Params,</span> <span class="line" id="L487"> mode: Mode,</span> <span class="line" id="L488">) KdfError!<span class="tok-type">void</span> {</span> <span class="line" id="L489"> <span class="tok-kw">if</span> (derived_key.len < <span class="tok-number">4</span>) <span class="tok-kw">return</span> KdfError.WeakParameters;</span> <span class="line" id="L490"> <span class="tok-kw">if</span> (derived_key.len > max_int) <span class="tok-kw">return</span> KdfError.OutputTooLong;</span> <span class="line" id="L491"></span> <span class="line" id="L492"> <span class="tok-kw">if</span> (password.len > max_int) <span class="tok-kw">return</span> KdfError.WeakParameters;</span> <span class="line" id="L493"> <span class="tok-kw">if</span> (salt.len < <span class="tok-number">8</span> <span class="tok-kw">or</span> salt.len > max_int) <span class="tok-kw">return</span> KdfError.WeakParameters;</span> <span class="line" id="L494"> <span class="tok-kw">if</span> (params.t < <span class="tok-number">1</span> <span class="tok-kw">or</span> params.p < <span class="tok-number">1</span>) <span class="tok-kw">return</span> KdfError.WeakParameters;</span> <span class="line" id="L495"></span> <span class="line" id="L496"> <span class="tok-kw">var</span> h0 = initHash(password, salt, params, derived_key.len, mode);</span> <span class="line" id="L497"> <span class="tok-kw">const</span> memory = <span class="tok-builtin">@max</span>(</span> <span class="line" id="L498"> params.m / (sync_points * params.p) * (sync_points * params.p),</span> <span class="line" id="L499"> <span class="tok-number">2</span> * sync_points * params.p,</span> <span class="line" id="L500"> );</span> <span class="line" id="L501"></span> <span class="line" id="L502"> <span class="tok-kw">var</span> blocks = <span class="tok-kw">try</span> Blocks.initCapacity(allocator, memory);</span> <span class="line" id="L503"> <span class="tok-kw">defer</span> blocks.deinit();</span> <span class="line" id="L504"></span> <span class="line" id="L505"> blocks.appendNTimesAssumeCapacity([_]<span class="tok-type">u64</span>{<span class="tok-number">0</span>} block_length, memory);</span> <span class="line" id="L506"></span> <span class="line" id="L507"> initBlocks(&blocks, &h0, memory, params.p);</span> <span class="line" id="L508"> <span class="tok-kw">try</span> processBlocks(allocator, &blocks, params.t, memory, params.p, mode);</span> <span class="line" id="L509"> finalize(&blocks, memory, params.p, derived_key);</span> <span class="line" id="L510">}</span> <span class="line" id="L511"></span> <span class="line" id="L512"><span class="tok-kw">const</span> PhcFormatHasher = <span class="tok-kw">struct</span> {</span> <span class="line" id="L513"> <span class="tok-kw">const</span> BinValue = phc_format.BinValue;</span> <span class="line" id="L514"></span> <span class="line" id="L515"> <span class="tok-kw">const</span> HashResult = <span class="tok-kw">struct</span> {</span> <span class="line" id="L516"> alg_id: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L517"> alg_version: ?<span class="tok-type">u32</span>,</span> <span class="line" id="L518"> m: <span class="tok-type">u32</span>,</span> <span class="line" id="L519"> t: <span class="tok-type">u32</span>,</span> <span class="line" id="L520"> p: <span class="tok-type">u24</span>,</span> <span class="line" id="L521"> salt: BinValue(max_salt_len),</span> <span class="line" id="L522"> hash: BinValue(max_hash_len),</span> <span class="line" id="L523"> };</span> <span class="line" id="L524"></span> <span class="line" id="L525"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">create</span>(</span> <span class="line" id="L526"> allocator: mem.Allocator,</span> <span class="line" id="L527"> password: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L528"> params: Params,</span> <span class="line" id="L529"> mode: Mode,</span> <span class="line" id="L530"> buf: []<span class="tok-type">u8</span>,</span> <span class="line" id="L531"> ) HasherError![]<span class="tok-kw">const</span> <span class="tok-type">u8</span> {</span> <span class="line" id="L532"> <span class="tok-kw">if</span> (params.secret != <span class="tok-null">null</span> <span class="tok-kw">or</span> params.ad != <span class="tok-null">null</span>) <span class="tok-kw">return</span> HasherError.InvalidEncoding;</span> <span class="line" id="L533"></span> <span class="line" id="L534"> <span class="tok-kw">var</span> salt: [default_salt_len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L535"> crypto.random.bytes(&salt);</span> <span class="line" id="L536"></span> <span class="line" id="L537"> <span class="tok-kw">var</span> hash: [default_hash_len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L538"> <span class="tok-kw">try</span> kdf(allocator, &hash, password, &salt, params, mode);</span> <span class="line" id="L539"></span> <span class="line" id="L540"> <span class="tok-kw">return</span> phc_format.serialize(HashResult{</span> <span class="line" id="L541"> .alg_id = <span class="tok-builtin">@tagName</span>(mode),</span> <span class="line" id="L542"> .alg_version = version,</span> <span class="line" id="L543"> .m = params.m,</span> <span class="line" id="L544"> .t = params.t,</span> <span class="line" id="L545"> .p = params.p,</span> <span class="line" id="L546"> .salt = <span class="tok-kw">try</span> BinValue(max_salt_len).fromSlice(&salt),</span> <span class="line" id="L547"> .hash = <span class="tok-kw">try</span> BinValue(max_hash_len).fromSlice(&hash),</span> <span class="line" id="L548"> }, buf);</span> <span class="line" id="L549"> }</span> <span class="line" id="L550"></span> <span class="line" id="L551"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">verify</span>(</span> <span class="line" id="L552"> allocator: mem.Allocator,</span> <span class="line" id="L553"> str: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L554"> password: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L555"> ) HasherError!<span class="tok-type">void</span> {</span> <span class="line" id="L556"> <span class="tok-kw">const</span> hash_result = <span class="tok-kw">try</span> phc_format.deserialize(HashResult, str);</span> <span class="line" id="L557"></span> <span class="line" id="L558"> <span class="tok-kw">const</span> mode = std.meta.stringToEnum(Mode, hash_result.alg_id) <span class="tok-kw">orelse</span></span> <span class="line" id="L559"> <span class="tok-kw">return</span> HasherError.PasswordVerificationFailed;</span> <span class="line" id="L560"> <span class="tok-kw">if</span> (hash_result.alg_version) \|v\| {</span> <span class="line" id="L561"> <span class="tok-kw">if</span> (v != version) <span class="tok-kw">return</span> HasherError.InvalidEncoding;</span> <span class="line" id="L562"> }</span> <span class="line" id="L563"> <span class="tok-kw">const</span> params = Params{ .t = hash_result.t, .m = hash_result.m, .p = hash_result.p };</span> <span class="line" id="L564"></span> <span class="line" id="L565"> <span class="tok-kw">const</span> expected_hash = hash_result.hash.constSlice();</span> <span class="line" id="L566"> <span class="tok-kw">var</span> hash_buf: [max_hash_len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L567"> <span class="tok-kw">if</span> (expected_hash.len > hash_buf.len) <span class="tok-kw">return</span> HasherError.InvalidEncoding;</span> <span class="line" id="L568"> <span class="tok-kw">var</span> hash = hash_buf[<span class="tok-number">0</span>..expected_hash.len];</span> <span class="line" id="L569"></span> <span class="line" id="L570"> <span class="tok-kw">try</span> kdf(allocator, hash, password, hash_result.salt.constSlice(), params, mode);</span> <span class="line" id="L571"> <span class="tok-kw">if</span> (!mem.eql(<span class="tok-type">u8</span>, hash, expected_hash)) <span class="tok-kw">return</span> HasherError.PasswordVerificationFailed;</span> <span class="line" id="L572"> }</span> <span class="line" id="L573">};</span> <span class="line" id="L574"></span> <span class="line" id="L575"><span class="tok-comment">/// Options for hashing a password.</span></span> <span class="line" id="L576"><span class="tok-comment">///</span></span> <span class="line" id="L577"><span class="tok-comment">/// Allocator is required for argon2.</span></span> <span class="line" id="L578"><span class="tok-comment">///</span></span> <span class="line" id="L579"><span class="tok-comment">/// Only phc encoding is supported.</span></span> <span class="line" id="L580"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> HashOptions = <span class="tok-kw">struct</span> {</span> <span class="line" id="L581"> allocator: ?mem.Allocator,</span> <span class="line" id="L582"> params: Params,</span> <span class="line" id="L583"> mode: Mode = .argon2id,</span> <span class="line" id="L584"> encoding: pwhash.Encoding = .phc,</span> <span class="line" id="L585">};</span> <span class="line" id="L586"></span> <span class="line" id="L587"><span class="tok-comment">/// Compute a hash of a password using the argon2 key derivation function.</span></span> <span class="line" id="L588"><span class="tok-comment">/// The function returns a string that includes all the parameters required for verification.</span></span> <span class="line" id="L589"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">strHash</span>(</span> <span class="line" id="L590"> password: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L591"> options: HashOptions,</span> <span class="line" id="L592"> out: []<span class="tok-type">u8</span>,</span> <span class="line" id="L593">) Error![]<span class="tok-kw">const</span> <span class="tok-type">u8</span> {</span> <span class="line" id="L594"> <span class="tok-kw">const</span> allocator = options.allocator <span class="tok-kw">orelse</span> <span class="tok-kw">return</span> Error.AllocatorRequired;</span> <span class="line" id="L595"> <span class="tok-kw">switch</span> (options.encoding) {</span> <span class="line" id="L596"> .phc => <span class="tok-kw">return</span> PhcFormatHasher.create(</span> <span class="line" id="L597"> allocator,</span> <span class="line" id="L598"> password,</span> <span class="line" id="L599"> options.params,</span> <span class="line" id="L600"> options.mode,</span> <span class="line" id="L601"> out,</span> <span class="line" id="L602"> ),</span> <span class="line" id="L603"> .crypt => <span class="tok-kw">return</span> Error.InvalidEncoding,</span> <span class="line" id="L604"> }</span> <span class="line" id="L605">}</span> <span class="line" id="L606"></span> <span class="line" id="L607"><span class="tok-comment">/// Options for hash verification.</span></span> <span class="line" id="L608"><span class="tok-comment">///</span></span> <span class="line" id="L609"><span class="tok-comment">/// Allocator is required for argon2.</span></span> <span class="line" id="L610"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> VerifyOptions = <span class="tok-kw">struct</span> {</span> <span class="line" id="L611"> allocator: ?mem.Allocator,</span> <span class="line" id="L612">};</span> <span class="line" id="L613"></span> <span class="line" id="L614"><span class="tok-comment">/// Verify that a previously computed hash is valid for a given password.</span></span> <span class="line" id="L615"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">strVerify</span>(</span> <span class="line" id="L616"> str: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L617"> password: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L618"> options: VerifyOptions,</span> <span class="line" id="L619">) Error!<span class="tok-type">void</span> {</span> <span class="line" id="L620"> <span class="tok-kw">const</span> allocator = options.allocator <span class="tok-kw">orelse</span> <span class="tok-kw">return</span> Error.AllocatorRequired;</span> <span class="line" id="L621"> <span class="tok-kw">return</span> PhcFormatHasher.verify(allocator, str, password);</span> <span class="line" id="L622">}</span> <span class="line" id="L623"></span> <span class="line" id="L624"><span class="tok-kw">test</span> <span class="tok-str">"argon2d"</span> {</span> <span class="line" id="L625"> <span class="tok-kw">const</span> password = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x01</span>} <span class="tok-number">32</span>;</span> <span class="line" id="L626"> <span class="tok-kw">const</span> salt = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x02</span>} <span class="tok-number">16</span>;</span> <span class="line" id="L627"> <span class="tok-kw">const</span> secret = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x03</span>} <span class="tok-number">8</span>;</span> <span class="line" id="L628"> <span class="tok-kw">const</span> ad = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x04</span>} <span class="tok-number">12</span>;</span> <span class="line" id="L629"></span> <span class="line" id="L630"> <span class="tok-kw">var</span> dk: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L631"> <span class="tok-kw">try</span> kdf(</span> <span class="line" id="L632"> std.testing.allocator,</span> <span class="line" id="L633"> &dk,</span> <span class="line" id="L634"> &password,</span> <span class="line" id="L635"> &salt,</span> <span class="line" id="L636"> .{ .t = <span class="tok-number">3</span>, .m = <span class="tok-number">32</span>, .p = <span class="tok-number">4</span>, .secret = &secret, .ad = &ad },</span> <span class="line" id="L637"> .argon2d,</span> <span class="line" id="L638"> );</span> <span class="line" id="L639"></span> <span class="line" id="L640"> <span class="tok-kw">const</span> want = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L641"> <span class="tok-number">0x51</span>, <span class="tok-number">0x2b</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x1b</span>, <span class="tok-number">0x6f</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0x62</span>, <span class="tok-number">0x97</span>,</span> <span class="line" id="L642"> <span class="tok-number">0x53</span>, <span class="tok-number">0x71</span>, <span class="tok-number">0xd3</span>, <span class="tok-number">0x09</span>, <span class="tok-number">0x19</span>, <span class="tok-number">0x73</span>, <span class="tok-number">0x42</span>, <span class="tok-number">0x94</span>,</span> <span class="line" id="L643"> <span class="tok-number">0xf8</span>, <span class="tok-number">0x68</span>, <span class="tok-number">0xe3</span>, <span class="tok-number">0xbe</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x84</span>, <span class="tok-number">0xf3</span>, <span class="tok-number">0xc1</span>,</span> <span class="line" id="L644"> <span class="tok-number">0xa1</span>, <span class="tok-number">0x3a</span>, <span class="tok-number">0x4d</span>, <span class="tok-number">0xb9</span>, <span class="tok-number">0xfa</span>, <span class="tok-number">0xbe</span>, <span class="tok-number">0x4a</span>, <span class="tok-number">0xcb</span>,</span> <span class="line" id="L645"> };</span> <span class="line" id="L646"> <span class="tok-kw">try</span> std.testing.expectEqualSlices(<span class="tok-type">u8</span>, &dk, &want);</span> <span class="line" id="L647">}</span> <span class="line" id="L648"></span> <span class="line" id="L649"><span class="tok-kw">test</span> <span class="tok-str">"argon2i"</span> {</span> <span class="line" id="L650"> <span class="tok-kw">const</span> password = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x01</span>} <span class="tok-number">32</span>;</span> <span class="line" id="L651"> <span class="tok-kw">const</span> salt = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x02</span>} <span class="tok-number">16</span>;</span> <span class="line" id="L652"> <span class="tok-kw">const</span> secret = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x03</span>} <span class="tok-number">8</span>;</span> <span class="line" id="L653"> <span class="tok-kw">const</span> ad = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x04</span>} <span class="tok-number">12</span>;</span> <span class="line" id="L654"></span> <span class="line" id="L655"> <span class="tok-kw">var</span> dk: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L656"> <span class="tok-kw">try</span> kdf(</span> <span class="line" id="L657"> std.testing.allocator,</span> <span class="line" id="L658"> &dk,</span> <span class="line" id="L659"> &password,</span> <span class="line" id="L660"> &salt,</span> <span class="line" id="L661"> .{ .t = <span class="tok-number">3</span>, .m = <span class="tok-number">32</span>, .p = <span class="tok-number">4</span>, .secret = &secret, .ad = &ad },</span> <span class="line" id="L662"> .argon2i,</span> <span class="line" id="L663"> );</span> <span class="line" id="L664"></span> <span class="line" id="L665"> <span class="tok-kw">const</span> want = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L666"> <span class="tok-number">0xc8</span>, <span class="tok-number">0x14</span>, <span class="tok-number">0xd9</span>, <span class="tok-number">0xd1</span>, <span class="tok-number">0xdc</span>, <span class="tok-number">0x7f</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0xaa</span>,</span> <span class="line" id="L667"> <span class="tok-number">0x13</span>, <span class="tok-number">0xf0</span>, <span class="tok-number">0xd7</span>, <span class="tok-number">0x7f</span>, <span class="tok-number">0x24</span>, <span class="tok-number">0x94</span>, <span class="tok-number">0xbd</span>, <span class="tok-number">0xa1</span>,</span> <span class="line" id="L668"> <span class="tok-number">0xc8</span>, <span class="tok-number">0xde</span>, <span class="tok-number">0x6b</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0x6d</span>, <span class="tok-number">0xd3</span>, <span class="tok-number">0x88</span>, <span class="tok-number">0xd2</span>,</span> <span class="line" id="L669"> <span class="tok-number">0x99</span>, <span class="tok-number">0x52</span>, <span class="tok-number">0xa4</span>, <span class="tok-number">0xc4</span>, <span class="tok-number">0x67</span>, <span class="tok-number">0x2b</span>, <span class="tok-number">0x6c</span>, <span class="tok-number">0xe8</span>,</span> <span class="line" id="L670"> };</span> <span class="line" id="L671"> <span class="tok-kw">try</span> std.testing.expectEqualSlices(<span class="tok-type">u8</span>, &dk, &want);</span> <span class="line" id="L672">}</span> <span class="line" id="L673"></span> <span class="line" id="L674"><span class="tok-kw">test</span> <span class="tok-str">"argon2id"</span> {</span> <span class="line" id="L675"> <span class="tok-kw">const</span> password = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x01</span>} <span class="tok-number">32</span>;</span> <span class="line" id="L676"> <span class="tok-kw">const</span> salt = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x02</span>} <span class="tok-number">16</span>;</span> <span class="line" id="L677"> <span class="tok-kw">const</span> secret = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x03</span>} <span class="tok-number">8</span>;</span> <span class="line" id="L678"> <span class="tok-kw">const</span> ad = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x04</span>} ** <span class="tok-number">12</span>;</span> <span class="line" id="L679"></span> <span class="line" id="L680"> <span class="tok-kw">var</span> dk: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L681"> <span class="tok-kw">try</span> kdf(</span> <span class="line" id="L682"> std.testing.allocator,</span> <span class="line" id="L683"> &dk,</span> <span class="line" id="L684"> &password,</span> <span class="line" id="L685"> &salt,</span> <span class="line" id="L686"> .{ .t = <span class="tok-number">3</span>, .m = <span class="tok-number">32</span>, .p = <span class="tok-number">4</span>, .secret = &secret, .ad = &ad },</span> <span class="line" id="L687"> .argon2id,</span> <span class="line" id="L688"> );</span> <span class="line" id="L689"></span> <span class="line" id="L690"> <span class="tok-kw">const</span> want = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L691"> <span class="tok-number">0x0d</span>, <span class="tok-number">0x64</span>, <span class="tok-number">0x0d</span>, <span class="tok-number">0xf5</span>, <span class="tok-number">0x8d</span>, <span class="tok-number">0x78</span>, <span class="tok-number">0x76</span>, <span class="tok-number">0x6c</span>,</span> <span class="line" id="L692"> <span class="tok-number">0x08</span>, <span class="tok-number">0xc0</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0xa3</span>, <span class="tok-number">0x4a</span>, <span class="tok-number">0x8b</span>, <span class="tok-number">0x53</span>, <span class="tok-number">0xc9</span>,</span> <span class="line" id="L693"> <span class="tok-number">0xd0</span>, <span class="tok-number">0x1e</span>, <span class="tok-number">0xf0</span>, <span class="tok-number">0x45</span>, <span class="tok-number">0x2d</span>, <span class="tok-number">0x75</span>, <span class="tok-number">0xb6</span>, <span class="tok-number">0x5e</span>,</span> <span class="line" id="L694"> <span class="tok-number">0xb5</span>, <span class="tok-number">0x25</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0xe9</span>, <span class="tok-number">0x6b</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0xe6</span>, <span class="tok-number">0x59</span>,</span> <span class="line" id="L695"> };</span> <span class="line" id="L696"> <span class="tok-kw">try</span> std.testing.expectEqualSlices(<span class="tok-type">u8</span>, &dk, &want);</span> <span class="line" id="L697">}</span> <span class="line" id="L698"></span> <span class="line" id="L699"><span class="tok-kw">test</span> <span class="tok-str">"kdf"</span> {</span> <span class="line" id="L700"> <span class="tok-kw">const</span> password = <span class="tok-str">"password"</span>;</span> <span class="line" id="L701"> <span class="tok-kw">const</span> salt = <span class="tok-str">"somesalt"</span>;</span> <span class="line" id="L702"></span> <span class="line" id="L703"> <span class="tok-kw">const</span> TestVector = <span class="tok-kw">struct</span> {</span> <span class="line" id="L704"> mode: Mode,</span> <span class="line" id="L705"> time: <span class="tok-type">u32</span>,</span> <span class="line" id="L706"> memory: <span class="tok-type">u32</span>,</span> <span class="line" id="L707"> threads: <span class="tok-type">u8</span>,</span> <span class="line" id="L708"> hash: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L709"> };</span> <span class="line" id="L710"> <span class="tok-kw">const</span> test_vectors = [_]TestVector{</span> <span class="line" id="L711"> .{</span> <span class="line" id="L712"> .mode = .argon2i,</span> <span class="line" id="L713"> .time = <span class="tok-number">1</span>,</span> <span class="line" id="L714"> .memory = <span class="tok-number">64</span>,</span> <span class="line" id="L715"> .threads = <span class="tok-number">1</span>,</span> <span class="line" id="L716"> .hash = <span class="tok-str">"b9c401d1844a67d50eae3967dc28870b22e508092e861a37"</span>,</span> <span class="line" id="L717"> },</span> <span class="line" id="L718"> .{</span> <span class="line" id="L719"> .mode = .argon2d,</span> <span class="line" id="L720"> .time = <span class="tok-number">1</span>,</span> <span class="line" id="L721"> .memory = <span class="tok-number">64</span>,</span> <span class="line" id="L722"> .threads = <span class="tok-number">1</span>,</span> <span class="line" id="L723"> .hash = <span class="tok-str">"8727405fd07c32c78d64f547f24150d3f2e703a89f981a19"</span>,</span> <span class="line" id="L724"> },</span> <span class="line" id="L725"> .{</span> <span class="line" id="L726"> .mode = .argon2id,</span> <span class="line" id="L727"> .time = <span class="tok-number">1</span>,</span> <span class="line" id="L728"> .memory = <span class="tok-number">64</span>,</span> <span class="line" id="L729"> .threads = <span class="tok-number">1</span>,</span> <span class="line" id="L730"> .hash = <span class="tok-str">"655ad15eac652dc59f7170a7332bf49b8469be1fdb9c28bb"</span>,</span> <span class="line" id="L731"> },</span> <span class="line" id="L732"> .{</span> <span class="line" id="L733"> .mode = .argon2i,</span> <span class="line" id="L734"> .time = <span class="tok-number">2</span>,</span> <span class="line" id="L735"> .memory = <span class="tok-number">64</span>,</span> <span class="line" id="L736"> .threads = <span class="tok-number">1</span>,</span> <span class="line" id="L737"> .hash = <span class="tok-str">"8cf3d8f76a6617afe35fac48eb0b7433a9a670ca4a07ed64"</span>,</span> <span class="line" id="L738"> },</span> <span class="line" id="L739"> .{</span> <span class="line" id="L740"> .mode = .argon2d,</span> <span class="line" id="L741"> .time = <span class="tok-number">2</span>,</span> <span class="line" id="L742"> .memory = <span class="tok-number">64</span>,</span> <span class="line" id="L743"> .threads = <span class="tok-number">1</span>,</span> <span class="line" id="L744"> .hash = <span class="tok-str">"3be9ec79a69b75d3752acb59a1fbb8b295a46529c48fbb75"</span>,</span> <span class="line" id="L745"> },</span> <span class="line" id="L746"> .{</span> <span class="line" id="L747"> .mode = .argon2id,</span> <span class="line" id="L748"> .time = <span class="tok-number">2</span>,</span> <span class="line" id="L749"> .memory = <span class="tok-number">64</span>,</span> <span class="line" id="L750"> .threads = <span class="tok-number">1</span>,</span> <span class="line" id="L751"> .hash = <span class="tok-str">"068d62b26455936aa6ebe60060b0a65870dbfa3ddf8d41f7"</span>,</span> <span class="line" id="L752"> },</span> <span class="line" id="L753"> .{</span> <span class="line" id="L754"> .mode = .argon2i,</span> <span class="line" id="L755"> .time = <span class="tok-number">2</span>,</span> <span class="line" id="L756"> .memory = <span class="tok-number">64</span>,</span> <span class="line" id="L757"> .threads = <span class="tok-number">2</span>,</span> <span class="line" id="L758"> .hash = <span class="tok-str">"2089f3e78a799720f80af806553128f29b132cafe40d059f"</span>,</span> <span class="line" id="L759"> },</span> <span class="line" id="L760"> .{</span> <span class="line" id="L761"> .mode = .argon2d,</span> <span class="line" id="L762"> .time = <span class="tok-number">2</span>,</span> <span class="line" id="L763"> .memory = <span class="tok-number">64</span>,</span> <span class="line" id="L764"> .threads = <span class="tok-number">2</span>,</span> <span class="line" id="L765"> .hash = <span class="tok-str">"68e2462c98b8bc6bb60ec68db418ae2c9ed24fc6748a40e9"</span>,</span> <span class="line" id="L766"> },</span> <span class="line" id="L767"> .{</span> <span class="line" id="L768"> .mode = .argon2id,</span> <span class="line" id="L769"> .time = <span class="tok-number">2</span>,</span> <span class="line" id="L770"> .memory = <span class="tok-number">64</span>,</span> <span class="line" id="L771"> .threads = <span class="tok-number">2</span>,</span> <span class="line" id="L772"> .hash = <span class="tok-str">"350ac37222f436ccb5c0972f1ebd3bf6b958bf2071841362"</span>,</span> <span class="line" id="L773"> },</span> <span class="line" id="L774"> .{</span> <span class="line" id="L775"> .mode = .argon2i,</span> <span class="line" id="L776"> .time = <span class="tok-number">3</span>,</span> <span class="line" id="L777"> .memory = <span class="tok-number">256</span>,</span> <span class="line" id="L778"> .threads = <span class="tok-number">2</span>,</span> <span class="line" id="L779"> .hash = <span class="tok-str">"f5bbf5d4c3836af13193053155b73ec7476a6a2eb93fd5e6"</span>,</span> <span class="line" id="L780"> },</span> <span class="line" id="L781"> .{</span> <span class="line" id="L782"> .mode = .argon2d,</span> <span class="line" id="L783"> .time = <span class="tok-number">3</span>,</span> <span class="line" id="L784"> .memory = <span class="tok-number">256</span>,</span> <span class="line" id="L785"> .threads = <span class="tok-number">2</span>,</span> <span class="line" id="L786"> .hash = <span class="tok-str">"f4f0669218eaf3641f39cc97efb915721102f4b128211ef2"</span>,</span> <span class="line" id="L787"> },</span> <span class="line" id="L788"> .{</span> <span class="line" id="L789"> .mode = .argon2id,</span> <span class="line" id="L790"> .time = <span class="tok-number">3</span>,</span> <span class="line" id="L791"> .memory = <span class="tok-number">256</span>,</span> <span class="line" id="L792"> .threads = <span class="tok-number">2</span>,</span> <span class="line" id="L793"> .hash = <span class="tok-str">"4668d30ac4187e6878eedeacf0fd83c5a0a30db2cc16ef0b"</span>,</span> <span class="line" id="L794"> },</span> <span class="line" id="L795"> .{</span> <span class="line" id="L796"> .mode = .argon2i,</span> <span class="line" id="L797"> .time = <span class="tok-number">4</span>,</span> <span class="line" id="L798"> .memory = <span class="tok-number">4096</span>,</span> <span class="line" id="L799"> .threads = <span class="tok-number">4</span>,</span> <span class="line" id="L800"> .hash = <span class="tok-str">"a11f7b7f3f93f02ad4bddb59ab62d121e278369288a0d0e7"</span>,</span> <span class="line" id="L801"> },</span> <span class="line" id="L802"> .{</span> <span class="line" id="L803"> .mode = .argon2d,</span> <span class="line" id="L804"> .time = <span class="tok-number">4</span>,</span> <span class="line" id="L805"> .memory = <span class="tok-number">4096</span>,</span> <span class="line" id="L806"> .threads = <span class="tok-number">4</span>,</span> <span class="line" id="L807"> .hash = <span class="tok-str">"935598181aa8dc2b720914aa6435ac8d3e3a4210c5b0fb2d"</span>,</span> <span class="line" id="L808"> },</span> <span class="line" id="L809"> .{</span> <span class="line" id="L810"> .mode = .argon2id,</span> <span class="line" id="L811"> .time = <span class="tok-number">4</span>,</span> <span class="line" id="L812"> .memory = <span class="tok-number">4096</span>,</span> <span class="line" id="L813"> .threads = <span class="tok-number">4</span>,</span> <span class="line" id="L814"> .hash = <span class="tok-str">"145db9733a9f4ee43edf33c509be96b934d505a4efb33c5a"</span>,</span> <span class="line" id="L815"> },</span> <span class="line" id="L816"> .{</span> <span class="line" id="L817"> .mode = .argon2i,</span> <span class="line" id="L818"> .time = <span class="tok-number">4</span>,</span> <span class="line" id="L819"> .memory = <span class="tok-number">1024</span>,</span> <span class="line" id="L820"> .threads = <span class="tok-number">8</span>,</span> <span class="line" id="L821"> .hash = <span class="tok-str">"0cdd3956aa35e6b475a7b0c63488822f774f15b43f6e6e17"</span>,</span> <span class="line" id="L822"> },</span> <span class="line" id="L823"> .{</span> <span class="line" id="L824"> .mode = .argon2d,</span> <span class="line" id="L825"> .time = <span class="tok-number">4</span>,</span> <span class="line" id="L826"> .memory = <span class="tok-number">1024</span>,</span> <span class="line" id="L827"> .threads = <span class="tok-number">8</span>,</span> <span class="line" id="L828"> .hash = <span class="tok-str">"83604fc2ad0589b9d055578f4d3cc55bc616df3578a896e9"</span>,</span> <span class="line" id="L829"> },</span> <span class="line" id="L830"> .{</span> <span class="line" id="L831"> .mode = .argon2id,</span> <span class="line" id="L832"> .time = <span class="tok-number">4</span>,</span> <span class="line" id="L833"> .memory = <span class="tok-number">1024</span>,</span> <span class="line" id="L834"> .threads = <span class="tok-number">8</span>,</span> <span class="line" id="L835"> .hash = <span class="tok-str">"8dafa8e004f8ea96bf7c0f93eecf67a6047476143d15577f"</span>,</span> <span class="line" id="L836"> },</span> <span class="line" id="L837"> .{</span> <span class="line" id="L838"> .mode = .argon2i,</span> <span class="line" id="L839"> .time = <span class="tok-number">2</span>,</span> <span class="line" id="L840"> .memory = <span class="tok-number">64</span>,</span> <span class="line" id="L841"> .threads = <span class="tok-number">3</span>,</span> <span class="line" id="L842"> .hash = <span class="tok-str">"5cab452fe6b8479c8661def8cd703b611a3905a6d5477fe6"</span>,</span> <span class="line" id="L843"> },</span> <span class="line" id="L844"> .{</span> <span class="line" id="L845"> .mode = .argon2d,</span> <span class="line" id="L846"> .time = <span class="tok-number">2</span>,</span> <span class="line" id="L847"> .memory = <span class="tok-number">64</span>,</span> <span class="line" id="L848"> .threads = <span class="tok-number">3</span>,</span> <span class="line" id="L849"> .hash = <span class="tok-str">"22474a423bda2ccd36ec9afd5119e5c8949798cadf659f51"</span>,</span> <span class="line" id="L850"> },</span> <span class="line" id="L851"> .{</span> <span class="line" id="L852"> .mode = .argon2id,</span> <span class="line" id="L853"> .time = <span class="tok-number">2</span>,</span> <span class="line" id="L854"> .memory = <span class="tok-number">64</span>,</span> <span class="line" id="L855"> .threads = <span class="tok-number">3</span>,</span> <span class="line" id="L856"> .hash = <span class="tok-str">"4a15b31aec7c2590b87d1f520be7d96f56658172deaa3079"</span>,</span> <span class="line" id="L857"> },</span> <span class="line" id="L858"> .{</span> <span class="line" id="L859"> .mode = .argon2i,</span> <span class="line" id="L860"> .time = <span class="tok-number">3</span>,</span> <span class="line" id="L861"> .memory = <span class="tok-number">1024</span>,</span> <span class="line" id="L862"> .threads = <span class="tok-number">6</span>,</span> <span class="line" id="L863"> .hash = <span class="tok-str">"d236b29c2b2a09babee842b0dec6aa1e83ccbdea8023dced"</span>,</span> <span class="line" id="L864"> },</span> <span class="line" id="L865"> .{</span> <span class="line" id="L866"> .mode = .argon2d,</span> <span class="line" id="L867"> .time = <span class="tok-number">3</span>,</span> <span class="line" id="L868"> .memory = <span class="tok-number">1024</span>,</span> <span class="line" id="L869"> .threads = <span class="tok-number">6</span>,</span> <span class="line" id="L870"> .hash = <span class="tok-str">"a3351b0319a53229152023d9206902f4ef59661cdca89481"</span>,</span> <span class="line" id="L871"> },</span> <span class="line" id="L872"> .{</span> <span class="line" id="L873"> .mode = .argon2id,</span> <span class="line" id="L874"> .time = <span class="tok-number">3</span>,</span> <span class="line" id="L875"> .memory = <span class="tok-number">1024</span>,</span> <span class="line" id="L876"> .threads = <span class="tok-number">6</span>,</span> <span class="line" id="L877"> .hash = <span class="tok-str">"1640b932f4b60e272f5d2207b9a9c626ffa1bd88d2349016"</span>,</span> <span class="line" id="L878"> },</span> <span class="line" id="L879"> };</span> <span class="line" id="L880"> <span class="tok-kw">for</span> (test_vectors) \|v\| {</span> <span class="line" id="L881"> <span class="tok-kw">var</span> want: [<span class="tok-number">24</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L882"> _ = <span class="tok-kw">try</span> std.fmt.hexToBytes(&want, v.hash);</span> <span class="line" id="L883"></span> <span class="line" id="L884"> <span class="tok-kw">var</span> dk: [<span class="tok-number">24</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L885"> <span class="tok-kw">try</span> kdf(</span> <span class="line" id="L886"> std.testing.allocator,</span> <span class="line" id="L887"> &dk,</span> <span class="line" id="L888"> password,</span> <span class="line" id="L889"> salt,</span> <span class="line" id="L890"> .{ .t = v.time, .m = v.memory, .p = v.threads },</span> <span class="line" id="L891"> v.mode,</span> <span class="line" id="L892"> );</span> <span class="line" id="L893"></span> <span class="line" id="L894"> <span class="tok-kw">try</span> std.testing.expectEqualSlices(<span class="tok-type">u8</span>, &dk, &want);</span> <span class="line" id="L895"> }</span> <span class="line" id="L896">}</span> <span class="line" id="L897"></span> <span class="line" id="L898"><span class="tok-kw">test</span> <span class="tok-str">"phc format hasher"</span> {</span> <span class="line" id="L899"> <span class="tok-kw">const</span> allocator = std.testing.allocator;</span> <span class="line" id="L900"> <span class="tok-kw">const</span> password = <span class="tok-str">"testpass"</span>;</span> <span class="line" id="L901"></span> <span class="line" id="L902"> <span class="tok-kw">var</span> buf: [<span class="tok-number">128</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L903"> <span class="tok-kw">const</span> hash = <span class="tok-kw">try</span> PhcFormatHasher.create(</span> <span class="line" id="L904"> allocator,</span> <span class="line" id="L905"> password,</span> <span class="line" id="L906"> .{ .t = <span class="tok-number">3</span>, .m = <span class="tok-number">32</span>, .p = <span class="tok-number">4</span> },</span> <span class="line" id="L907"> .argon2id,</span> <span class="line" id="L908"> &buf,</span> <span class="line" id="L909"> );</span> <span class="line" id="L910"> <span class="tok-kw">try</span> PhcFormatHasher.verify(allocator, hash, password);</span> <span class="line" id="L911">}</span> <span class="line" id="L912"></span> <span class="line" id="L913"><span class="tok-kw">test</span> <span class="tok-str">"password hash and password verify"</span> {</span> <span class="line" id="L914"> <span class="tok-kw">const</span> allocator = std.testing.allocator;</span> <span class="line" id="L915"> <span class="tok-kw">const</span> password = <span class="tok-str">"testpass"</span>;</span> <span class="line" id="L916"></span> <span class="line" id="L917"> <span class="tok-kw">var</span> buf: [<span class="tok-number">128</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L918"> <span class="tok-kw">const</span> hash = <span class="tok-kw">try</span> strHash(</span> <span class="line" id="L919"> password,</span> <span class="line" id="L920"> .{ .allocator = allocator, .params = .{ .t = <span class="tok-number">3</span>, .m = <span class="tok-number">32</span>, .p = <span class="tok-number">4</span> } },</span> <span class="line" id="L921"> &buf,</span> <span class="line" id="L922"> );</span> <span class="line" id="L923"> <span class="tok-kw">try</span> strVerify(hash, password, .{ .allocator = allocator });</span> <span class="line" id="L924">}</span> <span class="line" id="L925"></span> <span class="line" id="L926"><span class="tok-kw">test</span> <span class="tok-str">"kdf derived key length"</span> {</span> <span class="line" id="L927"> <span class="tok-kw">const</span> allocator = std.testing.allocator;</span> <span class="line" id="L928"></span> <span class="line" id="L929"> <span class="tok-kw">const</span> password = <span class="tok-str">"testpass"</span>;</span> <span class="line" id="L930"> <span class="tok-kw">const</span> salt = <span class="tok-str">"saltsalt"</span>;</span> <span class="line" id="L931"> <span class="tok-kw">const</span> params = Params{ .t = <span class="tok-number">3</span>, .m = <span class="tok-number">32</span>, .p = <span class="tok-number">4</span> };</span> <span class="line" id="L932"> <span class="tok-kw">const</span> mode = Mode.argon2id;</span> <span class="line" id="L933"></span> <span class="line" id="L934"> <span class="tok-kw">var</span> dk1: [<span class="tok-number">11</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L935"> <span class="tok-kw">try</span> kdf(allocator, &dk1, password, salt, params, mode);</span> <span class="line" id="L936"></span> <span class="line" id="L937"> <span class="tok-kw">var</span> dk2: [<span class="tok-number">77</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L938"> <span class="tok-kw">try</span> kdf(allocator, &dk2, password, salt, params, mode);</span> <span class="line" id="L939"></span> <span class="line" id="L940"> <span class="tok-kw">var</span> dk3: [<span class="tok-number">111</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L941"> <span class="tok-kw">try</span> kdf(allocator, &dk3, password, salt, params, mode);</span> <span class="line" id="L942">}</span> <span class="line" id="L943"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/crypto/salsa20.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/salsa20.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> builtin = <span class="tok-builtin">@import</span>(<span class="tok-str">"builtin"</span>);</span> <span class="line" id="L3"><span class="tok-kw">const</span> crypto = std.crypto;</span> <span class="line" id="L4"><span class="tok-kw">const</span> debug = std.debug;</span> <span class="line" id="L5"><span class="tok-kw">const</span> math = std.math;</span> <span class="line" id="L6"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L7"><span class="tok-kw">const</span> utils = std.crypto.utils;</span> <span class="line" id="L8"></span> <span class="line" id="L9"><span class="tok-kw">const</span> Poly1305 = crypto.onetimeauth.Poly1305;</span> <span class="line" id="L10"><span class="tok-kw">const</span> Blake2b = crypto.hash.blake2.Blake2b;</span> <span class="line" id="L11"><span class="tok-kw">const</span> X25519 = crypto.dh.X25519;</span> <span class="line" id="L12"></span> <span class="line" id="L13"><span class="tok-kw">const</span> AuthenticationError = crypto.errors.AuthenticationError;</span> <span class="line" id="L14"><span class="tok-kw">const</span> IdentityElementError = crypto.errors.IdentityElementError;</span> <span class="line" id="L15"><span class="tok-kw">const</span> WeakPublicKeyError = crypto.errors.WeakPublicKeyError;</span> <span class="line" id="L16"></span> <span class="line" id="L17"><span class="tok-comment">/// The Salsa cipher with 20 rounds.</span></span> <span class="line" id="L18"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Salsa20 = Salsa(<span class="tok-number">20</span>);</span> <span class="line" id="L19"></span> <span class="line" id="L20"><span class="tok-comment">/// The XSalsa cipher with 20 rounds.</span></span> <span class="line" id="L21"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> XSalsa20 = XSalsa(<span class="tok-number">20</span>);</span> <span class="line" id="L22"></span> <span class="line" id="L23"><span class="tok-kw">fn</span> <span class="tok-fn">SalsaVecImpl</span>(<span class="tok-kw">comptime</span> rounds: <span class="tok-type">comptime_int</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L24"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L25"> <span class="tok-kw">const</span> Lane = <span class="tok-builtin">@Vector</span>(<span class="tok-number">4</span>, <span class="tok-type">u32</span>);</span> <span class="line" id="L26"> <span class="tok-kw">const</span> Half = <span class="tok-builtin">@Vector</span>(<span class="tok-number">2</span>, <span class="tok-type">u32</span>);</span> <span class="line" id="L27"> <span class="tok-kw">const</span> BlockVec = [<span class="tok-number">4</span>]Lane;</span> <span class="line" id="L28"></span> <span class="line" id="L29"> <span class="tok-kw">fn</span> <span class="tok-fn">initContext</span>(key: [<span class="tok-number">8</span>]<span class="tok-type">u32</span>, d: [<span class="tok-number">4</span>]<span class="tok-type">u32</span>) BlockVec {</span> <span class="line" id="L30"> <span class="tok-kw">const</span> c = <span class="tok-str">"expand 32-byte k"</span>;</span> <span class="line" id="L31"> <span class="tok-kw">const</span> constant_le = <span class="tok-kw">comptime</span> [<span class="tok-number">4</span>]<span class="tok-type">u32</span>{</span> <span class="line" id="L32"> mem.readIntLittle(<span class="tok-type">u32</span>, c[<span class="tok-number">0</span>..<span class="tok-number">4</span>]),</span> <span class="line" id="L33"> mem.readIntLittle(<span class="tok-type">u32</span>, c[<span class="tok-number">4</span>..<span class="tok-number">8</span>]),</span> <span class="line" id="L34"> mem.readIntLittle(<span class="tok-type">u32</span>, c[<span class="tok-number">8</span>..<span class="tok-number">12</span>]),</span> <span class="line" id="L35"> mem.readIntLittle(<span class="tok-type">u32</span>, c[<span class="tok-number">12</span>..<span class="tok-number">16</span>]),</span> <span class="line" id="L36"> };</span> <span class="line" id="L37"> <span class="tok-kw">return</span> BlockVec{</span> <span class="line" id="L38"> Lane{ key[<span class="tok-number">0</span>], key[<span class="tok-number">1</span>], key[<span class="tok-number">2</span>], key[<span class="tok-number">3</span>] },</span> <span class="line" id="L39"> Lane{ key[<span class="tok-number">4</span>], key[<span class="tok-number">5</span>], key[<span class="tok-number">6</span>], key[<span class="tok-number">7</span>] },</span> <span class="line" id="L40"> Lane{ constant_le[<span class="tok-number">0</span>], constant_le[<span class="tok-number">1</span>], constant_le[<span class="tok-number">2</span>], constant_le[<span class="tok-number">3</span>] },</span> <span class="line" id="L41"> Lane{ d[<span class="tok-number">0</span>], d[<span class="tok-number">1</span>], d[<span class="tok-number">2</span>], d[<span class="tok-number">3</span>] },</span> <span class="line" id="L42"> };</span> <span class="line" id="L43"> }</span> <span class="line" id="L44"></span> <span class="line" id="L45"> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">salsaCore</span>(x: BlockVec, input: BlockVec, <span class="tok-kw">comptime</span> feedback: <span class="tok-type">bool</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L46"> <span class="tok-kw">const</span> n1n2n3n0 = Lane{ input[<span class="tok-number">3</span>][<span class="tok-number">1</span>], input[<span class="tok-number">3</span>][<span class="tok-number">2</span>], input[<span class="tok-number">3</span>][<span class="tok-number">3</span>], input[<span class="tok-number">3</span>][<span class="tok-number">0</span>] };</span> <span class="line" id="L47"> <span class="tok-kw">const</span> n1n2 = Half{ n1n2n3n0[<span class="tok-number">0</span>], n1n2n3n0[<span class="tok-number">1</span>] };</span> <span class="line" id="L48"> <span class="tok-kw">const</span> n3n0 = Half{ n1n2n3n0[<span class="tok-number">2</span>], n1n2n3n0[<span class="tok-number">3</span>] };</span> <span class="line" id="L49"> <span class="tok-kw">const</span> k0k1 = Half{ input[<span class="tok-number">0</span>][<span class="tok-number">0</span>], input[<span class="tok-number">0</span>][<span class="tok-number">1</span>] };</span> <span class="line" id="L50"> <span class="tok-kw">const</span> k2k3 = Half{ input[<span class="tok-number">0</span>][<span class="tok-number">2</span>], input[<span class="tok-number">0</span>][<span class="tok-number">3</span>] };</span> <span class="line" id="L51"> <span class="tok-kw">const</span> k4k5 = Half{ input[<span class="tok-number">1</span>][<span class="tok-number">0</span>], input[<span class="tok-number">1</span>][<span class="tok-number">1</span>] };</span> <span class="line" id="L52"> <span class="tok-kw">const</span> k6k7 = Half{ input[<span class="tok-number">1</span>][<span class="tok-number">2</span>], input[<span class="tok-number">1</span>][<span class="tok-number">3</span>] };</span> <span class="line" id="L53"> <span class="tok-kw">const</span> n0k0 = Half{ n3n0[<span class="tok-number">1</span>], k0k1[<span class="tok-number">0</span>] };</span> <span class="line" id="L54"> <span class="tok-kw">const</span> k0n0 = Half{ n0k0[<span class="tok-number">1</span>], n0k0[<span class="tok-number">0</span>] };</span> <span class="line" id="L55"> <span class="tok-kw">const</span> k4k5k0n0 = Lane{ k4k5[<span class="tok-number">0</span>], k4k5[<span class="tok-number">1</span>], k0n0[<span class="tok-number">0</span>], k0n0[<span class="tok-number">1</span>] };</span> <span class="line" id="L56"> <span class="tok-kw">const</span> k1k6 = Half{ k0k1[<span class="tok-number">1</span>], k6k7[<span class="tok-number">0</span>] };</span> <span class="line" id="L57"> <span class="tok-kw">const</span> k6k1 = Half{ k1k6[<span class="tok-number">1</span>], k1k6[<span class="tok-number">0</span>] };</span> <span class="line" id="L58"> <span class="tok-kw">const</span> n1n2k6k1 = Lane{ n1n2[<span class="tok-number">0</span>], n1n2[<span class="tok-number">1</span>], k6k1[<span class="tok-number">0</span>], k6k1[<span class="tok-number">1</span>] };</span> <span class="line" id="L59"> <span class="tok-kw">const</span> k7n3 = Half{ k6k7[<span class="tok-number">1</span>], n3n0[<span class="tok-number">0</span>] };</span> <span class="line" id="L60"> <span class="tok-kw">const</span> n3k7 = Half{ k7n3[<span class="tok-number">1</span>], k7n3[<span class="tok-number">0</span>] };</span> <span class="line" id="L61"> <span class="tok-kw">const</span> k2k3n3k7 = Lane{ k2k3[<span class="tok-number">0</span>], k2k3[<span class="tok-number">1</span>], n3k7[<span class="tok-number">0</span>], n3k7[<span class="tok-number">1</span>] };</span> <span class="line" id="L62"></span> <span class="line" id="L63"> <span class="tok-kw">var</span> diag0 = input[<span class="tok-number">2</span>];</span> <span class="line" id="L64"> <span class="tok-kw">var</span> diag1 = <span class="tok-builtin">@shuffle</span>(<span class="tok-type">u32</span>, k4k5k0n0, <span class="tok-null">undefined</span>, [_]<span class="tok-type">i32</span>{ <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span> });</span> <span class="line" id="L65"> <span class="tok-kw">var</span> diag2 = <span class="tok-builtin">@shuffle</span>(<span class="tok-type">u32</span>, n1n2k6k1, <span class="tok-null">undefined</span>, [_]<span class="tok-type">i32</span>{ <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span> });</span> <span class="line" id="L66"> <span class="tok-kw">var</span> diag3 = <span class="tok-builtin">@shuffle</span>(<span class="tok-type">u32</span>, k2k3n3k7, <span class="tok-null">undefined</span>, [_]<span class="tok-type">i32</span>{ <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span> });</span> <span class="line" id="L67"></span> <span class="line" id="L68"> <span class="tok-kw">const</span> start0 = diag0;</span> <span class="line" id="L69"> <span class="tok-kw">const</span> start1 = diag1;</span> <span class="line" id="L70"> <span class="tok-kw">const</span> start2 = diag2;</span> <span class="line" id="L71"> <span class="tok-kw">const</span> start3 = diag3;</span> <span class="line" id="L72"></span> <span class="line" id="L73"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L74"> <span class="tok-kw">while</span> (i < rounds) : (i += <span class="tok-number">2</span>) {</span> <span class="line" id="L75"> diag3 ^= math.rotl(Lane, diag1 +% diag0, <span class="tok-number">7</span>);</span> <span class="line" id="L76"> diag2 ^= math.rotl(Lane, diag0 +% diag3, <span class="tok-number">9</span>);</span> <span class="line" id="L77"> diag1 ^= math.rotl(Lane, diag3 +% diag2, <span class="tok-number">13</span>);</span> <span class="line" id="L78"> diag0 ^= math.rotl(Lane, diag2 +% diag1, <span class="tok-number">18</span>);</span> <span class="line" id="L79"></span> <span class="line" id="L80"> diag3 = <span class="tok-builtin">@shuffle</span>(<span class="tok-type">u32</span>, diag3, <span class="tok-null">undefined</span>, [_]<span class="tok-type">i32</span>{ <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span> });</span> <span class="line" id="L81"> diag2 = <span class="tok-builtin">@shuffle</span>(<span class="tok-type">u32</span>, diag2, <span class="tok-null">undefined</span>, [_]<span class="tok-type">i32</span>{ <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span> });</span> <span class="line" id="L82"> diag1 = <span class="tok-builtin">@shuffle</span>(<span class="tok-type">u32</span>, diag1, <span class="tok-null">undefined</span>, [_]<span class="tok-type">i32</span>{ <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span> });</span> <span class="line" id="L83"></span> <span class="line" id="L84"> diag1 ^= math.rotl(Lane, diag3 +% diag0, <span class="tok-number">7</span>);</span> <span class="line" id="L85"> diag2 ^= math.rotl(Lane, diag0 +% diag1, <span class="tok-number">9</span>);</span> <span class="line" id="L86"> diag3 ^= math.rotl(Lane, diag1 +% diag2, <span class="tok-number">13</span>);</span> <span class="line" id="L87"> diag0 ^= math.rotl(Lane, diag2 +% diag3, <span class="tok-number">18</span>);</span> <span class="line" id="L88"></span> <span class="line" id="L89"> diag1 = <span class="tok-builtin">@shuffle</span>(<span class="tok-type">u32</span>, diag1, <span class="tok-null">undefined</span>, [_]<span class="tok-type">i32</span>{ <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span> });</span> <span class="line" id="L90"> diag2 = <span class="tok-builtin">@shuffle</span>(<span class="tok-type">u32</span>, diag2, <span class="tok-null">undefined</span>, [_]<span class="tok-type">i32</span>{ <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span> });</span> <span class="line" id="L91"> diag3 = <span class="tok-builtin">@shuffle</span>(<span class="tok-type">u32</span>, diag3, <span class="tok-null">undefined</span>, [_]<span class="tok-type">i32</span>{ <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span> });</span> <span class="line" id="L92"> }</span> <span class="line" id="L93"></span> <span class="line" id="L94"> <span class="tok-kw">if</span> (feedback) {</span> <span class="line" id="L95"> diag0 +%= start0;</span> <span class="line" id="L96"> diag1 +%= start1;</span> <span class="line" id="L97"> diag2 +%= start2;</span> <span class="line" id="L98"> diag3 +%= start3;</span> <span class="line" id="L99"> }</span> <span class="line" id="L100"></span> <span class="line" id="L101"> <span class="tok-kw">const</span> x0x1x10x11 = Lane{ diag0[<span class="tok-number">0</span>], diag1[<span class="tok-number">1</span>], diag0[<span class="tok-number">2</span>], diag1[<span class="tok-number">3</span>] };</span> <span class="line" id="L102"> <span class="tok-kw">const</span> x12x13x6x7 = Lane{ diag1[<span class="tok-number">0</span>], diag2[<span class="tok-number">1</span>], diag1[<span class="tok-number">2</span>], diag2[<span class="tok-number">3</span>] };</span> <span class="line" id="L103"> <span class="tok-kw">const</span> x8x9x2x3 = Lane{ diag2[<span class="tok-number">0</span>], diag3[<span class="tok-number">1</span>], diag2[<span class="tok-number">2</span>], diag3[<span class="tok-number">3</span>] };</span> <span class="line" id="L104"> <span class="tok-kw">const</span> x4x5x14x15 = Lane{ diag3[<span class="tok-number">0</span>], diag0[<span class="tok-number">1</span>], diag3[<span class="tok-number">2</span>], diag0[<span class="tok-number">3</span>] };</span> <span class="line" id="L105"></span> <span class="line" id="L106"> x[<span class="tok-number">0</span>] = Lane{ x0x1x10x11[<span class="tok-number">0</span>], x0x1x10x11[<span class="tok-number">1</span>], x8x9x2x3[<span class="tok-number">2</span>], x8x9x2x3[<span class="tok-number">3</span>] };</span> <span class="line" id="L107"> x[<span class="tok-number">1</span>] = Lane{ x4x5x14x15[<span class="tok-number">0</span>], x4x5x14x15[<span class="tok-number">1</span>], x12x13x6x7[<span class="tok-number">2</span>], x12x13x6x7[<span class="tok-number">3</span>] };</span> <span class="line" id="L108"> x[<span class="tok-number">2</span>] = Lane{ x8x9x2x3[<span class="tok-number">0</span>], x8x9x2x3[<span class="tok-number">1</span>], x0x1x10x11[<span class="tok-number">2</span>], x0x1x10x11[<span class="tok-number">3</span>] };</span> <span class="line" id="L109"> x[<span class="tok-number">3</span>] = Lane{ x12x13x6x7[<span class="tok-number">0</span>], x12x13x6x7[<span class="tok-number">1</span>], x4x5x14x15[<span class="tok-number">2</span>], x4x5x14x15[<span class="tok-number">3</span>] };</span> <span class="line" id="L110"> }</span> <span class="line" id="L111"></span> <span class="line" id="L112"> <span class="tok-kw">fn</span> <span class="tok-fn">hashToBytes</span>(out: [<span class="tok-number">64</span>]<span class="tok-type">u8</span>, x: BlockVec) <span class="tok-type">void</span> {</span> <span class="line" id="L113"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L114"> <span class="tok-kw">while</span> (i < <span class="tok-number">4</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L115"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">16</span> * i + <span class="tok-number">0</span> ..][<span class="tok-number">0</span>..<span class="tok-number">4</span>], x[i][<span class="tok-number">0</span>]);</span> <span class="line" id="L116"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">16</span> * i + <span class="tok-number">4</span> ..][<span class="tok-number">0</span>..<span class="tok-number">4</span>], x[i][<span class="tok-number">1</span>]);</span> <span class="line" id="L117"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">16</span> * i + <span class="tok-number">8</span> ..][<span class="tok-number">0</span>..<span class="tok-number">4</span>], x[i][<span class="tok-number">2</span>]);</span> <span class="line" id="L118"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">16</span> * i + <span class="tok-number">12</span> ..][<span class="tok-number">0</span>..<span class="tok-number">4</span>], x[i][<span class="tok-number">3</span>]);</span> <span class="line" id="L119"> }</span> <span class="line" id="L120"> }</span> <span class="line" id="L121"></span> <span class="line" id="L122"> <span class="tok-kw">fn</span> <span class="tok-fn">salsaXor</span>(out: []<span class="tok-type">u8</span>, in: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, key: [<span class="tok-number">8</span>]<span class="tok-type">u32</span>, d: [<span class="tok-number">4</span>]<span class="tok-type">u32</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L123"> <span class="tok-kw">var</span> ctx = initContext(key, d);</span> <span class="line" id="L124"> <span class="tok-kw">var</span> x: BlockVec = <span class="tok-null">undefined</span>;</span> <span class="line" id="L125"> <span class="tok-kw">var</span> buf: [<span class="tok-number">64</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L126"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L127"> <span class="tok-kw">while</span> (i + <span class="tok-number">64</span> <= in.len) : (i += <span class="tok-number">64</span>) {</span> <span class="line" id="L128"> salsaCore(x[<span class="tok-number">0</span>..], ctx, <span class="tok-null">true</span>);</span> <span class="line" id="L129"> hashToBytes(buf[<span class="tok-number">0</span>..], x);</span> <span class="line" id="L130"> <span class="tok-kw">var</span> xout = out[i..];</span> <span class="line" id="L131"> <span class="tok-kw">const</span> xin = in[i..];</span> <span class="line" id="L132"> <span class="tok-kw">var</span> j: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L133"> <span class="tok-kw">while</span> (j < <span class="tok-number">64</span>) : (j += <span class="tok-number">1</span>) {</span> <span class="line" id="L134"> xout[j] = xin[j];</span> <span class="line" id="L135"> }</span> <span class="line" id="L136"> j = <span class="tok-number">0</span>;</span> <span class="line" id="L137"> <span class="tok-kw">while</span> (j < <span class="tok-number">64</span>) : (j += <span class="tok-number">1</span>) {</span> <span class="line" id="L138"> xout[j] ^= buf[j];</span> <span class="line" id="L139"> }</span> <span class="line" id="L140"> ctx[<span class="tok-number">3</span>][<span class="tok-number">2</span>] +%= <span class="tok-number">1</span>;</span> <span class="line" id="L141"> <span class="tok-kw">if</span> (ctx[<span class="tok-number">3</span>][<span class="tok-number">2</span>] == <span class="tok-number">0</span>) {</span> <span class="line" id="L142"> ctx[<span class="tok-number">3</span>][<span class="tok-number">3</span>] += <span class="tok-number">1</span>;</span> <span class="line" id="L143"> }</span> <span class="line" id="L144"> }</span> <span class="line" id="L145"> <span class="tok-kw">if</span> (i < in.len) {</span> <span class="line" id="L146"> salsaCore(x[<span class="tok-number">0</span>..], ctx, <span class="tok-null">true</span>);</span> <span class="line" id="L147"> hashToBytes(buf[<span class="tok-number">0</span>..], x);</span> <span class="line" id="L148"></span> <span class="line" id="L149"> <span class="tok-kw">var</span> xout = out[i..];</span> <span class="line" id="L150"> <span class="tok-kw">const</span> xin = in[i..];</span> <span class="line" id="L151"> <span class="tok-kw">var</span> j: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L152"> <span class="tok-kw">while</span> (j < in.len % <span class="tok-number">64</span>) : (j += <span class="tok-number">1</span>) {</span> <span class="line" id="L153"> xout[j] = xin[j] ^ buf[j];</span> <span class="line" id="L154"> }</span> <span class="line" id="L155"> }</span> <span class="line" id="L156"> }</span> <span class="line" id="L157"></span> <span class="line" id="L158"> <span class="tok-kw">fn</span> <span class="tok-fn">hsalsa</span>(input: [<span class="tok-number">16</span>]<span class="tok-type">u8</span>, key: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>) [<span class="tok-number">32</span>]<span class="tok-type">u8</span> {</span> <span class="line" id="L159"> <span class="tok-kw">var</span> c: [<span class="tok-number">4</span>]<span class="tok-type">u32</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L160"> <span class="tok-kw">for</span> (c, <span class="tok-number">0</span>..) \|_, i\| {</span> <span class="line" id="L161"> c[i] = mem.readIntLittle(<span class="tok-type">u32</span>, input[<span class="tok-number">4</span> * i ..][<span class="tok-number">0</span>..<span class="tok-number">4</span>]);</span> <span class="line" id="L162"> }</span> <span class="line" id="L163"> <span class="tok-kw">const</span> ctx = initContext(keyToWords(key), c);</span> <span class="line" id="L164"> <span class="tok-kw">var</span> x: BlockVec = <span class="tok-null">undefined</span>;</span> <span class="line" id="L165"> salsaCore(x[<span class="tok-number">0</span>..], ctx, <span class="tok-null">false</span>);</span> <span class="line" id="L166"> <span class="tok-kw">var</span> out: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L167"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">0</span>..<span class="tok-number">4</span>], x[<span class="tok-number">0</span>][<span class="tok-number">0</span>]);</span> <span class="line" id="L168"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">4</span>..<span class="tok-number">8</span>], x[<span class="tok-number">1</span>][<span class="tok-number">1</span>]);</span> <span class="line" id="L169"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">8</span>..<span class="tok-number">12</span>], x[<span class="tok-number">2</span>][<span class="tok-number">2</span>]);</span> <span class="line" id="L170"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">12</span>..<span class="tok-number">16</span>], x[<span class="tok-number">3</span>][<span class="tok-number">3</span>]);</span> <span class="line" id="L171"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">16</span>..<span class="tok-number">20</span>], x[<span class="tok-number">1</span>][<span class="tok-number">2</span>]);</span> <span class="line" id="L172"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">20</span>..<span class="tok-number">24</span>], x[<span class="tok-number">1</span>][<span class="tok-number">3</span>]);</span> <span class="line" id="L173"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">24</span>..<span class="tok-number">28</span>], x[<span class="tok-number">2</span>][<span class="tok-number">0</span>]);</span> <span class="line" id="L174"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">28</span>..<span class="tok-number">32</span>], x[<span class="tok-number">2</span>][<span class="tok-number">1</span>]);</span> <span class="line" id="L175"> <span class="tok-kw">return</span> out;</span> <span class="line" id="L176"> }</span> <span class="line" id="L177"> };</span> <span class="line" id="L178">}</span> <span class="line" id="L179"></span> <span class="line" id="L180"><span class="tok-kw">fn</span> <span class="tok-fn">SalsaNonVecImpl</span>(<span class="tok-kw">comptime</span> rounds: <span class="tok-type">comptime_int</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L181"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L182"> <span class="tok-kw">const</span> BlockVec = [<span class="tok-number">16</span>]<span class="tok-type">u32</span>;</span> <span class="line" id="L183"></span> <span class="line" id="L184"> <span class="tok-kw">fn</span> <span class="tok-fn">initContext</span>(key: [<span class="tok-number">8</span>]<span class="tok-type">u32</span>, d: [<span class="tok-number">4</span>]<span class="tok-type">u32</span>) BlockVec {</span> <span class="line" id="L185"> <span class="tok-kw">const</span> c = <span class="tok-str">"expand 32-byte k"</span>;</span> <span class="line" id="L186"> <span class="tok-kw">const</span> constant_le = <span class="tok-kw">comptime</span> [<span class="tok-number">4</span>]<span class="tok-type">u32</span>{</span> <span class="line" id="L187"> mem.readIntLittle(<span class="tok-type">u32</span>, c[<span class="tok-number">0</span>..<span class="tok-number">4</span>]),</span> <span class="line" id="L188"> mem.readIntLittle(<span class="tok-type">u32</span>, c[<span class="tok-number">4</span>..<span class="tok-number">8</span>]),</span> <span class="line" id="L189"> mem.readIntLittle(<span class="tok-type">u32</span>, c[<span class="tok-number">8</span>..<span class="tok-number">12</span>]),</span> <span class="line" id="L190"> mem.readIntLittle(<span class="tok-type">u32</span>, c[<span class="tok-number">12</span>..<span class="tok-number">16</span>]),</span> <span class="line" id="L191"> };</span> <span class="line" id="L192"> <span class="tok-kw">return</span> BlockVec{</span> <span class="line" id="L193"> constant_le[<span class="tok-number">0</span>], key[<span class="tok-number">0</span>], key[<span class="tok-number">1</span>], key[<span class="tok-number">2</span>],</span> <span class="line" id="L194"> key[<span class="tok-number">3</span>], constant_le[<span class="tok-number">1</span>], d[<span class="tok-number">0</span>], d[<span class="tok-number">1</span>],</span> <span class="line" id="L195"> d[<span class="tok-number">2</span>], d[<span class="tok-number">3</span>], constant_le[<span class="tok-number">2</span>], key[<span class="tok-number">4</span>],</span> <span class="line" id="L196"> key[<span class="tok-number">5</span>], key[<span class="tok-number">6</span>], key[<span class="tok-number">7</span>], constant_le[<span class="tok-number">3</span>],</span> <span class="line" id="L197"> };</span> <span class="line" id="L198"> }</span> <span class="line" id="L199"></span> <span class="line" id="L200"> <span class="tok-kw">const</span> QuarterRound = <span class="tok-kw">struct</span> {</span> <span class="line" id="L201"> a: <span class="tok-type">usize</span>,</span> <span class="line" id="L202"> b: <span class="tok-type">usize</span>,</span> <span class="line" id="L203"> c: <span class="tok-type">usize</span>,</span> <span class="line" id="L204"> d: <span class="tok-type">u6</span>,</span> <span class="line" id="L205"> };</span> <span class="line" id="L206"></span> <span class="line" id="L207"> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">Rp</span>(a: <span class="tok-type">usize</span>, b: <span class="tok-type">usize</span>, c: <span class="tok-type">usize</span>, d: <span class="tok-type">u6</span>) QuarterRound {</span> <span class="line" id="L208"> <span class="tok-kw">return</span> QuarterRound{</span> <span class="line" id="L209"> .a = a,</span> <span class="line" id="L210"> .b = b,</span> <span class="line" id="L211"> .c = c,</span> <span class="line" id="L212"> .d = d,</span> <span class="line" id="L213"> };</span> <span class="line" id="L214"> }</span> <span class="line" id="L215"></span> <span class="line" id="L216"> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">salsaCore</span>(x: BlockVec, input: BlockVec, <span class="tok-kw">comptime</span> feedback: <span class="tok-type">bool</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L217"> <span class="tok-kw">const</span> arx_steps = <span class="tok-kw">comptime</span> [_]QuarterRound{</span> <span class="line" id="L218"> Rp(<span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">12</span>, <span class="tok-number">7</span>), Rp(<span class="tok-number">8</span>, <span class="tok-number">4</span>, <span class="tok-number">0</span>, <span class="tok-number">9</span>), Rp(<span class="tok-number">12</span>, <span class="tok-number">8</span>, <span class="tok-number">4</span>, <span class="tok-number">13</span>), Rp(<span class="tok-number">0</span>, <span class="tok-number">12</span>, <span class="tok-number">8</span>, <span class="tok-number">18</span>),</span> <span class="line" id="L219"> Rp(<span class="tok-number">9</span>, <span class="tok-number">5</span>, <span class="tok-number">1</span>, <span class="tok-number">7</span>), Rp(<span class="tok-number">13</span>, <span class="tok-number">9</span>, <span class="tok-number">5</span>, <span class="tok-number">9</span>), Rp(<span class="tok-number">1</span>, <span class="tok-number">13</span>, <span class="tok-number">9</span>, <span class="tok-number">13</span>), Rp(<span class="tok-number">5</span>, <span class="tok-number">1</span>, <span class="tok-number">13</span>, <span class="tok-number">18</span>),</span> <span class="line" id="L220"> Rp(<span class="tok-number">14</span>, <span class="tok-number">10</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>), Rp(<span class="tok-number">2</span>, <span class="tok-number">14</span>, <span class="tok-number">10</span>, <span class="tok-number">9</span>), Rp(<span class="tok-number">6</span>, <span class="tok-number">2</span>, <span class="tok-number">14</span>, <span class="tok-number">13</span>), Rp(<span class="tok-number">10</span>, <span class="tok-number">6</span>, <span class="tok-number">2</span>, <span class="tok-number">18</span>),</span> <span class="line" id="L221"> Rp(<span class="tok-number">3</span>, <span class="tok-number">15</span>, <span class="tok-number">11</span>, <span class="tok-number">7</span>), Rp(<span class="tok-number">7</span>, <span class="tok-number">3</span>, <span class="tok-number">15</span>, <span class="tok-number">9</span>), Rp(<span class="tok-number">11</span>, <span class="tok-number">7</span>, <span class="tok-number">3</span>, <span class="tok-number">13</span>), Rp(<span class="tok-number">15</span>, <span class="tok-number">11</span>, <span class="tok-number">7</span>, <span class="tok-number">18</span>),</span> <span class="line" id="L222"> Rp(<span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">3</span>, <span class="tok-number">7</span>), Rp(<span class="tok-number">2</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">9</span>), Rp(<span class="tok-number">3</span>, <span class="tok-number">2</span>, <span class="tok-number">1</span>, <span class="tok-number">13</span>), Rp(<span class="tok-number">0</span>, <span class="tok-number">3</span>, <span class="tok-number">2</span>, <span class="tok-number">18</span>),</span> <span class="line" id="L223"> Rp(<span class="tok-number">6</span>, <span class="tok-number">5</span>, <span class="tok-number">4</span>, <span class="tok-number">7</span>), Rp(<span class="tok-number">7</span>, <span class="tok-number">6</span>, <span class="tok-number">5</span>, <span class="tok-number">9</span>), Rp(<span class="tok-number">4</span>, <span class="tok-number">7</span>, <span class="tok-number">6</span>, <span class="tok-number">13</span>), Rp(<span class="tok-number">5</span>, <span class="tok-number">4</span>, <span class="tok-number">7</span>, <span class="tok-number">18</span>),</span> <span class="line" id="L224"> Rp(<span class="tok-number">11</span>, <span class="tok-number">10</span>, <span class="tok-number">9</span>, <span class="tok-number">7</span>), Rp(<span class="tok-number">8</span>, <span class="tok-number">11</span>, <span class="tok-number">10</span>, <span class="tok-number">9</span>), Rp(<span class="tok-number">9</span>, <span class="tok-number">8</span>, <span class="tok-number">11</span>, <span class="tok-number">13</span>), Rp(<span class="tok-number">10</span>, <span class="tok-number">9</span>, <span class="tok-number">8</span>, <span class="tok-number">18</span>),</span> <span class="line" id="L225"> Rp(<span class="tok-number">12</span>, <span class="tok-number">15</span>, <span class="tok-number">14</span>, <span class="tok-number">7</span>), Rp(<span class="tok-number">13</span>, <span class="tok-number">12</span>, <span class="tok-number">15</span>, <span class="tok-number">9</span>), Rp(<span class="tok-number">14</span>, <span class="tok-number">13</span>, <span class="tok-number">12</span>, <span class="tok-number">13</span>), Rp(<span class="tok-number">15</span>, <span class="tok-number">14</span>, <span class="tok-number">13</span>, <span class="tok-number">18</span>),</span> <span class="line" id="L226"> };</span> <span class="line" id="L227"> x. = input;</span> <span class="line" id="L228"> <span class="tok-kw">var</span> j: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L229"> <span class="tok-kw">while</span> (j < rounds) : (j += <span class="tok-number">2</span>) {</span> <span class="line" id="L230"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (arx_steps) \|r\| {</span> <span class="line" id="L231"> x[r.a] ^= math.rotl(<span class="tok-type">u32</span>, x[r.b] +% x[r.c], r.d);</span> <span class="line" id="L232"> }</span> <span class="line" id="L233"> }</span> <span class="line" id="L234"> <span class="tok-kw">if</span> (feedback) {</span> <span class="line" id="L235"> j = <span class="tok-number">0</span>;</span> <span class="line" id="L236"> <span class="tok-kw">while</span> (j < <span class="tok-number">16</span>) : (j += <span class="tok-number">1</span>) {</span> <span class="line" id="L237"> x[j] +%= input[j];</span> <span class="line" id="L238"> }</span> <span class="line" id="L239"> }</span> <span class="line" id="L240"> }</span> <span class="line" id="L241"></span> <span class="line" id="L242"> <span class="tok-kw">fn</span> <span class="tok-fn">hashToBytes</span>(out: [<span class="tok-number">64</span>]<span class="tok-type">u8</span>, x: BlockVec) <span class="tok-type">void</span> {</span> <span class="line" id="L243"> <span class="tok-kw">for</span> (x, <span class="tok-number">0</span>..) \|w, i\| {</span> <span class="line" id="L244"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[i <span class="tok-number">4</span> ..][<span class="tok-number">0</span>..<span class="tok-number">4</span>], w);</span> <span class="line" id="L245"> }</span> <span class="line" id="L246"> }</span> <span class="line" id="L247"></span> <span class="line" id="L248"> <span class="tok-kw">fn</span> <span class="tok-fn">salsaXor</span>(out: []<span class="tok-type">u8</span>, in: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, key: [<span class="tok-number">8</span>]<span class="tok-type">u32</span>, d: [<span class="tok-number">4</span>]<span class="tok-type">u32</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L249"> <span class="tok-kw">var</span> ctx = initContext(key, d);</span> <span class="line" id="L250"> <span class="tok-kw">var</span> x: BlockVec = <span class="tok-null">undefined</span>;</span> <span class="line" id="L251"> <span class="tok-kw">var</span> buf: [<span class="tok-number">64</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L252"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L253"> <span class="tok-kw">while</span> (i + <span class="tok-number">64</span> <= in.len) : (i += <span class="tok-number">64</span>) {</span> <span class="line" id="L254"> salsaCore(x[<span class="tok-number">0</span>..], ctx, <span class="tok-null">true</span>);</span> <span class="line" id="L255"> hashToBytes(buf[<span class="tok-number">0</span>..], x);</span> <span class="line" id="L256"> <span class="tok-kw">var</span> xout = out[i..];</span> <span class="line" id="L257"> <span class="tok-kw">const</span> xin = in[i..];</span> <span class="line" id="L258"> <span class="tok-kw">var</span> j: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L259"> <span class="tok-kw">while</span> (j < <span class="tok-number">64</span>) : (j += <span class="tok-number">1</span>) {</span> <span class="line" id="L260"> xout[j] = xin[j];</span> <span class="line" id="L261"> }</span> <span class="line" id="L262"> j = <span class="tok-number">0</span>;</span> <span class="line" id="L263"> <span class="tok-kw">while</span> (j < <span class="tok-number">64</span>) : (j += <span class="tok-number">1</span>) {</span> <span class="line" id="L264"> xout[j] ^= buf[j];</span> <span class="line" id="L265"> }</span> <span class="line" id="L266"> <span class="tok-kw">const</span> ov = <span class="tok-builtin">@addWithOverflow</span>(ctx[<span class="tok-number">8</span>], <span class="tok-number">1</span>);</span> <span class="line" id="L267"> ctx[<span class="tok-number">8</span>] = ov[<span class="tok-number">0</span>];</span> <span class="line" id="L268"> ctx[<span class="tok-number">9</span>] += ov[<span class="tok-number">1</span>];</span> <span class="line" id="L269"> }</span> <span class="line" id="L270"> <span class="tok-kw">if</span> (i < in.len) {</span> <span class="line" id="L271"> salsaCore(x[<span class="tok-number">0</span>..], ctx, <span class="tok-null">true</span>);</span> <span class="line" id="L272"> hashToBytes(buf[<span class="tok-number">0</span>..], x);</span> <span class="line" id="L273"></span> <span class="line" id="L274"> <span class="tok-kw">var</span> xout = out[i..];</span> <span class="line" id="L275"> <span class="tok-kw">const</span> xin = in[i..];</span> <span class="line" id="L276"> <span class="tok-kw">var</span> j: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L277"> <span class="tok-kw">while</span> (j < in.len % <span class="tok-number">64</span>) : (j += <span class="tok-number">1</span>) {</span> <span class="line" id="L278"> xout[j] = xin[j] ^ buf[j];</span> <span class="line" id="L279"> }</span> <span class="line" id="L280"> }</span> <span class="line" id="L281"> }</span> <span class="line" id="L282"></span> <span class="line" id="L283"> <span class="tok-kw">fn</span> <span class="tok-fn">hsalsa</span>(input: [<span class="tok-number">16</span>]<span class="tok-type">u8</span>, key: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>) [<span class="tok-number">32</span>]<span class="tok-type">u8</span> {</span> <span class="line" id="L284"> <span class="tok-kw">var</span> c: [<span class="tok-number">4</span>]<span class="tok-type">u32</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L285"> <span class="tok-kw">for</span> (c, <span class="tok-number">0</span>..) \|_, i\| {</span> <span class="line" id="L286"> c[i] = mem.readIntLittle(<span class="tok-type">u32</span>, input[<span class="tok-number">4</span> * i ..][<span class="tok-number">0</span>..<span class="tok-number">4</span>]);</span> <span class="line" id="L287"> }</span> <span class="line" id="L288"> <span class="tok-kw">const</span> ctx = initContext(keyToWords(key), c);</span> <span class="line" id="L289"> <span class="tok-kw">var</span> x: BlockVec = <span class="tok-null">undefined</span>;</span> <span class="line" id="L290"> salsaCore(x[<span class="tok-number">0</span>..], ctx, <span class="tok-null">false</span>);</span> <span class="line" id="L291"> <span class="tok-kw">var</span> out: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L292"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">0</span>..<span class="tok-number">4</span>], x[<span class="tok-number">0</span>]);</span> <span class="line" id="L293"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">4</span>..<span class="tok-number">8</span>], x[<span class="tok-number">5</span>]);</span> <span class="line" id="L294"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">8</span>..<span class="tok-number">12</span>], x[<span class="tok-number">10</span>]);</span> <span class="line" id="L295"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">12</span>..<span class="tok-number">16</span>], x[<span class="tok-number">15</span>]);</span> <span class="line" id="L296"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">16</span>..<span class="tok-number">20</span>], x[<span class="tok-number">6</span>]);</span> <span class="line" id="L297"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">20</span>..<span class="tok-number">24</span>], x[<span class="tok-number">7</span>]);</span> <span class="line" id="L298"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">24</span>..<span class="tok-number">28</span>], x[<span class="tok-number">8</span>]);</span> <span class="line" id="L299"> mem.writeIntLittle(<span class="tok-type">u32</span>, out[<span class="tok-number">28</span>..<span class="tok-number">32</span>], x[<span class="tok-number">9</span>]);</span> <span class="line" id="L300"> <span class="tok-kw">return</span> out;</span> <span class="line" id="L301"> }</span> <span class="line" id="L302"> };</span> <span class="line" id="L303">}</span> <span class="line" id="L304"></span> <span class="line" id="L305"><span class="tok-kw">const</span> SalsaImpl = <span class="tok-kw">if</span> (builtin.cpu.arch == .x86_64) SalsaVecImpl <span class="tok-kw">else</span> SalsaNonVecImpl;</span> <span class="line" id="L306"></span> <span class="line" id="L307"><span class="tok-kw">fn</span> <span class="tok-fn">keyToWords</span>(key: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>) [<span class="tok-number">8</span>]<span class="tok-type">u32</span> {</span> <span class="line" id="L308"> <span class="tok-kw">var</span> k: [<span class="tok-number">8</span>]<span class="tok-type">u32</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L309"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L310"> <span class="tok-kw">while</span> (i < <span class="tok-number">8</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L311"> k[i] = mem.readIntLittle(<span class="tok-type">u32</span>, key[i * <span class="tok-number">4</span> ..][<span class="tok-number">0</span>..<span class="tok-number">4</span>]);</span> <span class="line" id="L312"> }</span> <span class="line" id="L313"> <span class="tok-kw">return</span> k;</span> <span class="line" id="L314">}</span> <span class="line" id="L315"></span> <span class="line" id="L316"><span class="tok-kw">fn</span> <span class="tok-fn">extend</span>(<span class="tok-kw">comptime</span> rounds: <span class="tok-type">comptime_int</span>, key: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>, nonce: [<span class="tok-number">24</span>]<span class="tok-type">u8</span>) <span class="tok-kw">struct</span> { key: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>, nonce: [<span class="tok-number">8</span>]<span class="tok-type">u8</span> } {</span> <span class="line" id="L317"> <span class="tok-kw">return</span> .{</span> <span class="line" id="L318"> .key = SalsaImpl(rounds).hsalsa(nonce[<span class="tok-number">0</span>..<span class="tok-number">16</span>]., key),</span> <span class="line" id="L319"> .nonce = nonce[<span class="tok-number">16</span>..<span class="tok-number">24</span>].,</span> <span class="line" id="L320"> };</span> <span class="line" id="L321">}</span> <span class="line" id="L322"></span> <span class="line" id="L323"><span class="tok-comment">/// The Salsa stream cipher.</span></span> <span class="line" id="L324"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">Salsa</span>(<span class="tok-kw">comptime</span> rounds: <span class="tok-type">comptime_int</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L325"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L326"> <span class="tok-comment">/// Nonce length in bytes.</span></span> <span class="line" id="L327"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> nonce_length = <span class="tok-number">8</span>;</span> <span class="line" id="L328"> <span class="tok-comment">/// Key length in bytes.</span></span> <span class="line" id="L329"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> key_length = <span class="tok-number">32</span>;</span> <span class="line" id="L330"></span> <span class="line" id="L331"> <span class="tok-comment">/// Add the output of the Salsa stream cipher to `in` and stores the result into `out`.</span></span> <span class="line" id="L332"> <span class="tok-comment">/// WARNING: This function doesn't provide authenticated encryption.</span></span> <span class="line" id="L333"> <span class="tok-comment">/// Using the AEAD or one of the `box` versions is usually preferred.</span></span> <span class="line" id="L334"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">xor</span>(out: []<span class="tok-type">u8</span>, in: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, counter: <span class="tok-type">u64</span>, key: [key_length]<span class="tok-type">u8</span>, nonce: [nonce_length]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L335"> debug.assert(in.len == out.len);</span> <span class="line" id="L336"></span> <span class="line" id="L337"> <span class="tok-kw">var</span> d: [<span class="tok-number">4</span>]<span class="tok-type">u32</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L338"> d[<span class="tok-number">0</span>] = mem.readIntLittle(<span class="tok-type">u32</span>, nonce[<span class="tok-number">0</span>..<span class="tok-number">4</span>]);</span> <span class="line" id="L339"> d[<span class="tok-number">1</span>] = mem.readIntLittle(<span class="tok-type">u32</span>, nonce[<span class="tok-number">4</span>..<span class="tok-number">8</span>]);</span> <span class="line" id="L340"> d[<span class="tok-number">2</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@truncate</span>(counter));</span> <span class="line" id="L341"> d[<span class="tok-number">3</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@truncate</span>(counter >> <span class="tok-number">32</span>));</span> <span class="line" id="L342"> SalsaImpl(rounds).salsaXor(out, in, keyToWords(key), d);</span> <span class="line" id="L343"> }</span> <span class="line" id="L344"> };</span> <span class="line" id="L345">}</span> <span class="line" id="L346"></span> <span class="line" id="L347"><span class="tok-comment">/// The XSalsa stream cipher.</span></span> <span class="line" id="L348"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">XSalsa</span>(<span class="tok-kw">comptime</span> rounds: <span class="tok-type">comptime_int</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L349"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L350"> <span class="tok-comment">/// Nonce length in bytes.</span></span> <span class="line" id="L351"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> nonce_length = <span class="tok-number">24</span>;</span> <span class="line" id="L352"> <span class="tok-comment">/// Key length in bytes.</span></span> <span class="line" id="L353"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> key_length = <span class="tok-number">32</span>;</span> <span class="line" id="L354"></span> <span class="line" id="L355"> <span class="tok-comment">/// Add the output of the XSalsa stream cipher to `in` and stores the result into `out`.</span></span> <span class="line" id="L356"> <span class="tok-comment">/// WARNING: This function doesn't provide authenticated encryption.</span></span> <span class="line" id="L357"> <span class="tok-comment">/// Using the AEAD or one of the `box` versions is usually preferred.</span></span> <span class="line" id="L358"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">xor</span>(out: []<span class="tok-type">u8</span>, in: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, counter: <span class="tok-type">u64</span>, key: [key_length]<span class="tok-type">u8</span>, nonce: [nonce_length]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L359"> <span class="tok-kw">const</span> extended = extend(rounds, key, nonce);</span> <span class="line" id="L360"> Salsa(rounds).xor(out, in, counter, extended.key, extended.nonce);</span> <span class="line" id="L361"> }</span> <span class="line" id="L362"> };</span> <span class="line" id="L363">}</span> <span class="line" id="L364"></span> <span class="line" id="L365"><span class="tok-comment">/// The XSalsa stream cipher, combined with the Poly1305 MAC</span></span> <span class="line" id="L366"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> XSalsa20Poly1305 = <span class="tok-kw">struct</span> {</span> <span class="line" id="L367"> <span class="tok-comment">/// Authentication tag length in bytes.</span></span> <span class="line" id="L368"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> tag_length = Poly1305.mac_length;</span> <span class="line" id="L369"> <span class="tok-comment">/// Nonce length in bytes.</span></span> <span class="line" id="L370"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> nonce_length = XSalsa20.nonce_length;</span> <span class="line" id="L371"> <span class="tok-comment">/// Key length in bytes.</span></span> <span class="line" id="L372"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> key_length = XSalsa20.key_length;</span> <span class="line" id="L373"></span> <span class="line" id="L374"> <span class="tok-kw">const</span> rounds = <span class="tok-number">20</span>;</span> <span class="line" id="L375"></span> <span class="line" id="L376"> <span class="tok-comment">/// c: ciphertext: output buffer should be of size m.len</span></span> <span class="line" id="L377"> <span class="tok-comment">/// tag: authentication tag: output MAC</span></span> <span class="line" id="L378"> <span class="tok-comment">/// m: message</span></span> <span class="line" id="L379"> <span class="tok-comment">/// ad: Associated Data</span></span> <span class="line" id="L380"> <span class="tok-comment">/// npub: public nonce</span></span> <span class="line" id="L381"> <span class="tok-comment">/// k: private key</span></span> <span class="line" id="L382"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">encrypt</span>(c: []<span class="tok-type">u8</span>, tag: [tag_length]<span class="tok-type">u8</span>, m: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, ad: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, npub: [nonce_length]<span class="tok-type">u8</span>, k: [key_length]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L383"> debug.assert(c.len == m.len);</span> <span class="line" id="L384"> <span class="tok-kw">const</span> extended = extend(rounds, k, npub);</span> <span class="line" id="L385"> <span class="tok-kw">var</span> block0 = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} * <span class="tok-number">64</span>;</span> <span class="line" id="L386"> <span class="tok-kw">const</span> mlen0 = <span class="tok-builtin">@min</span>(<span class="tok-number">32</span>, m.len);</span> <span class="line" id="L387"> <span class="tok-builtin">@memcpy</span>(block0[<span class="tok-number">32</span>..][<span class="tok-number">0</span>..mlen0], m[<span class="tok-number">0</span>..mlen0]);</span> <span class="line" id="L388"> Salsa20.xor(block0[<span class="tok-number">0</span>..], block0[<span class="tok-number">0</span>..], <span class="tok-number">0</span>, extended.key, extended.nonce);</span> <span class="line" id="L389"> <span class="tok-builtin">@memcpy</span>(c[<span class="tok-number">0</span>..mlen0], block0[<span class="tok-number">32</span>..][<span class="tok-number">0</span>..mlen0]);</span> <span class="line" id="L390"> Salsa20.xor(c[mlen0..], m[mlen0..], <span class="tok-number">1</span>, extended.key, extended.nonce);</span> <span class="line" id="L391"> <span class="tok-kw">var</span> mac = Poly1305.init(block0[<span class="tok-number">0</span>..<span class="tok-number">32</span>]);</span> <span class="line" id="L392"> mac.update(ad);</span> <span class="line" id="L393"> mac.update(c);</span> <span class="line" id="L394"> mac.final(tag);</span> <span class="line" id="L395"> }</span> <span class="line" id="L396"></span> <span class="line" id="L397"> <span class="tok-comment">/// m: message: output buffer should be of size c.len</span></span> <span class="line" id="L398"> <span class="tok-comment">/// c: ciphertext</span></span> <span class="line" id="L399"> <span class="tok-comment">/// tag: authentication tag</span></span> <span class="line" id="L400"> <span class="tok-comment">/// ad: Associated Data</span></span> <span class="line" id="L401"> <span class="tok-comment">/// npub: public nonce</span></span> <span class="line" id="L402"> <span class="tok-comment">/// k: private key</span></span> <span class="line" id="L403"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">decrypt</span>(m: []<span class="tok-type">u8</span>, c: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, tag: [tag_length]<span class="tok-type">u8</span>, ad: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, npub: [nonce_length]<span class="tok-type">u8</span>, k: [key_length]<span class="tok-type">u8</span>) AuthenticationError!<span class="tok-type">void</span> {</span> <span class="line" id="L404"> debug.assert(c.len == m.len);</span> <span class="line" id="L405"> <span class="tok-kw">const</span> extended = extend(rounds, k, npub);</span> <span class="line" id="L406"> <span class="tok-kw">var</span> block0 = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} ** <span class="tok-number">64</span>;</span> <span class="line" id="L407"> <span class="tok-kw">const</span> mlen0 = <span class="tok-builtin">@min</span>(<span class="tok-number">32</span>, c.len);</span> <span class="line" id="L408"> <span class="tok-builtin">@memcpy</span>(block0[<span class="tok-number">32</span>..][<span class="tok-number">0</span>..mlen0], c[<span class="tok-number">0</span>..mlen0]);</span> <span class="line" id="L409"> Salsa20.xor(block0[<span class="tok-number">0</span>..], block0[<span class="tok-number">0</span>..], <span class="tok-number">0</span>, extended.key, extended.nonce);</span> <span class="line" id="L410"> <span class="tok-kw">var</span> mac = Poly1305.init(block0[<span class="tok-number">0</span>..<span class="tok-number">32</span>]);</span> <span class="line" id="L411"> mac.update(ad);</span> <span class="line" id="L412"> mac.update(c);</span> <span class="line" id="L413"> <span class="tok-kw">var</span> computedTag: [tag_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L414"> mac.final(&computedTag);</span> <span class="line" id="L415"> <span class="tok-kw">var</span> acc: <span class="tok-type">u8</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L416"> <span class="tok-kw">for</span> (computedTag, <span class="tok-number">0</span>..) \|_, i\| {</span> <span class="line" id="L417"> acc \|= computedTag[i] ^ tag[i];</span> <span class="line" id="L418"> }</span> <span class="line" id="L419"> <span class="tok-kw">if</span> (acc != <span class="tok-number">0</span>) {</span> <span class="line" id="L420"> utils.secureZero(<span class="tok-type">u8</span>, &computedTag);</span> <span class="line" id="L421"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.AuthenticationFailed;</span> <span class="line" id="L422"> }</span> <span class="line" id="L423"> <span class="tok-builtin">@memcpy</span>(m[<span class="tok-number">0</span>..mlen0], block0[<span class="tok-number">32</span>..][<span class="tok-number">0</span>..mlen0]);</span> <span class="line" id="L424"> Salsa20.xor(m[mlen0..], c[mlen0..], <span class="tok-number">1</span>, extended.key, extended.nonce);</span> <span class="line" id="L425"> }</span> <span class="line" id="L426">};</span> <span class="line" id="L427"></span> <span class="line" id="L428"><span class="tok-comment">/// NaCl-compatible secretbox API.</span></span> <span class="line" id="L429"><span class="tok-comment">///</span></span> <span class="line" id="L430"><span class="tok-comment">/// A secretbox contains both an encrypted message and an authentication tag to verify that it hasn't been tampered with.</span></span> <span class="line" id="L431"><span class="tok-comment">/// A secret key shared by all the recipients must be already known in order to use this API.</span></span> <span class="line" id="L432"><span class="tok-comment">///</span></span> <span class="line" id="L433"><span class="tok-comment">/// Nonces are 192-bit large and can safely be chosen with a random number generator.</span></span> <span class="line" id="L434"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> SecretBox = <span class="tok-kw">struct</span> {</span> <span class="line" id="L435"> <span class="tok-comment">/// Key length in bytes.</span></span> <span class="line" id="L436"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> key_length = XSalsa20Poly1305.key_length;</span> <span class="line" id="L437"> <span class="tok-comment">/// Nonce length in bytes.</span></span> <span class="line" id="L438"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> nonce_length = XSalsa20Poly1305.nonce_length;</span> <span class="line" id="L439"> <span class="tok-comment">/// Authentication tag length in bytes.</span></span> <span class="line" id="L440"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> tag_length = XSalsa20Poly1305.tag_length;</span> <span class="line" id="L441"></span> <span class="line" id="L442"> <span class="tok-comment">/// Encrypt and authenticate `m` using a nonce `npub` and a key `k`.</span></span> <span class="line" id="L443"> <span class="tok-comment">/// `c` must be exactly `tag_length` longer than `m`, as it will store both the ciphertext and the authentication tag.</span></span> <span class="line" id="L444"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">seal</span>(c: []<span class="tok-type">u8</span>, m: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, npub: [nonce_length]<span class="tok-type">u8</span>, k: [key_length]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L445"> debug.assert(c.len == tag_length + m.len);</span> <span class="line" id="L446"> XSalsa20Poly1305.encrypt(c[tag_length..], c[<span class="tok-number">0</span>..tag_length], m, <span class="tok-str">""</span>, npub, k);</span> <span class="line" id="L447"> }</span> <span class="line" id="L448"></span> <span class="line" id="L449"> <span class="tok-comment">/// Verify and decrypt `c` using a nonce `npub` and a key `k`.</span></span> <span class="line" id="L450"> <span class="tok-comment">/// `m` must be exactly `tag_length` smaller than `c`, as `c` includes an authentication tag in addition to the encrypted message.</span></span> <span class="line" id="L451"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">open</span>(m: []<span class="tok-type">u8</span>, c: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, npub: [nonce_length]<span class="tok-type">u8</span>, k: [key_length]<span class="tok-type">u8</span>) AuthenticationError!<span class="tok-type">void</span> {</span> <span class="line" id="L452"> <span class="tok-kw">if</span> (c.len < tag_length) {</span> <span class="line" id="L453"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.AuthenticationFailed;</span> <span class="line" id="L454"> }</span> <span class="line" id="L455"> debug.assert(m.len == c.len - tag_length);</span> <span class="line" id="L456"> <span class="tok-kw">return</span> XSalsa20Poly1305.decrypt(m, c[tag_length..], c[<span class="tok-number">0</span>..tag_length]., <span class="tok-str">""</span>, npub, k);</span> <span class="line" id="L457"> }</span> <span class="line" id="L458">};</span> <span class="line" id="L459"></span> <span class="line" id="L460"><span class="tok-comment">/// NaCl-compatible box API.</span></span> <span class="line" id="L461"><span class="tok-comment">///</span></span> <span class="line" id="L462"><span class="tok-comment">/// A secretbox contains both an encrypted message and an authentication tag to verify that it hasn't been tampered with.</span></span> <span class="line" id="L463"><span class="tok-comment">/// This construction uses public-key cryptography. A shared secret doesn't have to be known in advance by both parties.</span></span> <span class="line" id="L464"><span class="tok-comment">/// Instead, a message is encrypted using a sender's secret key and a recipient's public key,</span></span> <span class="line" id="L465"><span class="tok-comment">/// and is decrypted using the recipient's secret key and the sender's public key.</span></span> <span class="line" id="L466"><span class="tok-comment">///</span></span> <span class="line" id="L467"><span class="tok-comment">/// Nonces are 192-bit large and can safely be chosen with a random number generator.</span></span> <span class="line" id="L468"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Box = <span class="tok-kw">struct</span> {</span> <span class="line" id="L469"> <span class="tok-comment">/// Public key length in bytes.</span></span> <span class="line" id="L470"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> public_length = X25519.public_length;</span> <span class="line" id="L471"> <span class="tok-comment">/// Secret key length in bytes.</span></span> <span class="line" id="L472"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> secret_length = X25519.secret_length;</span> <span class="line" id="L473"> <span class="tok-comment">/// Shared key length in bytes.</span></span> <span class="line" id="L474"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> shared_length = XSalsa20Poly1305.key_length;</span> <span class="line" id="L475"> <span class="tok-comment">/// Seed (for key pair creation) length in bytes.</span></span> <span class="line" id="L476"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> seed_length = X25519.seed_length;</span> <span class="line" id="L477"> <span class="tok-comment">/// Nonce length in bytes.</span></span> <span class="line" id="L478"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> nonce_length = XSalsa20Poly1305.nonce_length;</span> <span class="line" id="L479"> <span class="tok-comment">/// Authentication tag length in bytes.</span></span> <span class="line" id="L480"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> tag_length = XSalsa20Poly1305.tag_length;</span> <span class="line" id="L481"></span> <span class="line" id="L482"> <span class="tok-comment">/// A key pair.</span></span> <span class="line" id="L483"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> KeyPair = X25519.KeyPair;</span> <span class="line" id="L484"></span> <span class="line" id="L485"> <span class="tok-comment">/// Compute a secret suitable for `secretbox` given a recipent's public key and a sender's secret key.</span></span> <span class="line" id="L486"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">createSharedSecret</span>(public_key: [public_length]<span class="tok-type">u8</span>, secret_key: [secret_length]<span class="tok-type">u8</span>) (IdentityElementError \|\| WeakPublicKeyError)![shared_length]<span class="tok-type">u8</span> {</span> <span class="line" id="L487"> <span class="tok-kw">const</span> p = <span class="tok-kw">try</span> X25519.scalarmult(secret_key, public_key);</span> <span class="line" id="L488"> <span class="tok-kw">const</span> zero = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} * <span class="tok-number">16</span>;</span> <span class="line" id="L489"> <span class="tok-kw">return</span> SalsaImpl(<span class="tok-number">20</span>).hsalsa(zero, p);</span> <span class="line" id="L490"> }</span> <span class="line" id="L491"></span> <span class="line" id="L492"> <span class="tok-comment">/// Encrypt and authenticate a message using a recipient's public key `public_key` and a sender's `secret_key`.</span></span> <span class="line" id="L493"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">seal</span>(c: []<span class="tok-type">u8</span>, m: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, npub: [nonce_length]<span class="tok-type">u8</span>, public_key: [public_length]<span class="tok-type">u8</span>, secret_key: [secret_length]<span class="tok-type">u8</span>) (IdentityElementError \|\| WeakPublicKeyError)!<span class="tok-type">void</span> {</span> <span class="line" id="L494"> <span class="tok-kw">const</span> shared_key = <span class="tok-kw">try</span> createSharedSecret(public_key, secret_key);</span> <span class="line" id="L495"> <span class="tok-kw">return</span> SecretBox.seal(c, m, npub, shared_key);</span> <span class="line" id="L496"> }</span> <span class="line" id="L497"></span> <span class="line" id="L498"> <span class="tok-comment">/// Verify and decrypt a message using a recipient's secret key `public_key` and a sender's `public_key`.</span></span> <span class="line" id="L499"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">open</span>(m: []<span class="tok-type">u8</span>, c: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, npub: [nonce_length]<span class="tok-type">u8</span>, public_key: [public_length]<span class="tok-type">u8</span>, secret_key: [secret_length]<span class="tok-type">u8</span>) (IdentityElementError \|\| WeakPublicKeyError \|\| AuthenticationError)!<span class="tok-type">void</span> {</span> <span class="line" id="L500"> <span class="tok-kw">const</span> shared_key = <span class="tok-kw">try</span> createSharedSecret(public_key, secret_key);</span> <span class="line" id="L501"> <span class="tok-kw">return</span> SecretBox.open(m, c, npub, shared_key);</span> <span class="line" id="L502"> }</span> <span class="line" id="L503">};</span> <span class="line" id="L504"></span> <span class="line" id="L505"><span class="tok-comment">/// libsodium-compatible sealed boxes</span></span> <span class="line" id="L506"><span class="tok-comment">///</span></span> <span class="line" id="L507"><span class="tok-comment">/// Sealed boxes are designed to anonymously send messages to a recipient given their public key.</span></span> <span class="line" id="L508"><span class="tok-comment">/// Only the recipient can decrypt these messages, using their private key.</span></span> <span class="line" id="L509"><span class="tok-comment">/// While the recipient can verify the integrity of the message, it cannot verify the identity of the sender.</span></span> <span class="line" id="L510"><span class="tok-comment">///</span></span> <span class="line" id="L511"><span class="tok-comment">/// A message is encrypted using an ephemeral key pair, whose secret part is destroyed right after the encryption process.</span></span> <span class="line" id="L512"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> SealedBox = <span class="tok-kw">struct</span> {</span> <span class="line" id="L513"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> public_length = Box.public_length;</span> <span class="line" id="L514"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> secret_length = Box.secret_length;</span> <span class="line" id="L515"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> seed_length = Box.seed_length;</span> <span class="line" id="L516"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> seal_length = Box.public_length + Box.tag_length;</span> <span class="line" id="L517"></span> <span class="line" id="L518"> <span class="tok-comment">/// A key pair.</span></span> <span class="line" id="L519"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> KeyPair = Box.KeyPair;</span> <span class="line" id="L520"></span> <span class="line" id="L521"> <span class="tok-kw">fn</span> <span class="tok-fn">createNonce</span>(pk1: [public_length]<span class="tok-type">u8</span>, pk2: [public_length]<span class="tok-type">u8</span>) [Box.nonce_length]<span class="tok-type">u8</span> {</span> <span class="line" id="L522"> <span class="tok-kw">var</span> hasher = Blake2b(Box.nonce_length * <span class="tok-number">8</span>).init(.{});</span> <span class="line" id="L523"> hasher.update(&pk1);</span> <span class="line" id="L524"> hasher.update(&pk2);</span> <span class="line" id="L525"> <span class="tok-kw">var</span> nonce: [Box.nonce_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L526"> hasher.final(&nonce);</span> <span class="line" id="L527"> <span class="tok-kw">return</span> nonce;</span> <span class="line" id="L528"> }</span> <span class="line" id="L529"></span> <span class="line" id="L530"> <span class="tok-comment">/// Encrypt a message `m` for a recipient whose public key is `public_key`.</span></span> <span class="line" id="L531"> <span class="tok-comment">/// `c` must be `seal_length` bytes larger than `m`, so that the required metadata can be added.</span></span> <span class="line" id="L532"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">seal</span>(c: []<span class="tok-type">u8</span>, m: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, public_key: [public_length]<span class="tok-type">u8</span>) (WeakPublicKeyError \|\| IdentityElementError)!<span class="tok-type">void</span> {</span> <span class="line" id="L533"> debug.assert(c.len == m.len + seal_length);</span> <span class="line" id="L534"> <span class="tok-kw">var</span> ekp = <span class="tok-kw">try</span> KeyPair.create(<span class="tok-null">null</span>);</span> <span class="line" id="L535"> <span class="tok-kw">const</span> nonce = createNonce(ekp.public_key, public_key);</span> <span class="line" id="L536"> c[<span class="tok-number">0</span>..public_length].* = ekp.public_key;</span> <span class="line" id="L537"> <span class="tok-kw">try</span> Box.seal(c[Box.public_length..], m, nonce, public_key, ekp.secret_key);</span> <span class="line" id="L538"> utils.secureZero(<span class="tok-type">u8</span>, ekp.secret_key[<span class="tok-number">0</span>..]);</span> <span class="line" id="L539"> }</span> <span class="line" id="L540"></span> <span class="line" id="L541"> <span class="tok-comment">/// Decrypt a message using a key pair.</span></span> <span class="line" id="L542"> <span class="tok-comment">/// `m` must be exactly `seal_length` bytes smaller than `c`, as `c` also includes metadata.</span></span> <span class="line" id="L543"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">open</span>(m: []<span class="tok-type">u8</span>, c: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, keypair: KeyPair) (IdentityElementError \|\| WeakPublicKeyError \|\| AuthenticationError)!<span class="tok-type">void</span> {</span> <span class="line" id="L544"> <span class="tok-kw">if</span> (c.len < seal_length) {</span> <span class="line" id="L545"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.AuthenticationFailed;</span> <span class="line" id="L546"> }</span> <span class="line" id="L547"> <span class="tok-kw">const</span> epk = c[<span class="tok-number">0</span>..public_length];</span> <span class="line" id="L548"> <span class="tok-kw">const</span> nonce = createNonce(epk., keypair.public_key);</span> <span class="line" id="L549"> <span class="tok-kw">return</span> Box.open(m, c[public_length..], nonce, epk., keypair.secret_key);</span> <span class="line" id="L550"> }</span> <span class="line" id="L551">};</span> <span class="line" id="L552"></span> <span class="line" id="L553"><span class="tok-kw">const</span> htest = <span class="tok-builtin">@import</span>(<span class="tok-str">"test.zig"</span>);</span> <span class="line" id="L554"></span> <span class="line" id="L555"><span class="tok-kw">test</span> <span class="tok-str">"(x)salsa20"</span> {</span> <span class="line" id="L556"> <span class="tok-kw">const</span> key = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x69</span>} <span class="tok-number">32</span>;</span> <span class="line" id="L557"> <span class="tok-kw">const</span> nonce = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x42</span>} <span class="tok-number">8</span>;</span> <span class="line" id="L558"> <span class="tok-kw">const</span> msg = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} <span class="tok-number">20</span>;</span> <span class="line" id="L559"> <span class="tok-kw">var</span> c: [msg.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L560"></span> <span class="line" id="L561"> Salsa20.xor(&c, msg[<span class="tok-number">0</span>..], <span class="tok-number">0</span>, key, nonce);</span> <span class="line" id="L562"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"30ff9933aa6534ff5207142593cd1fca4b23bdd8"</span>, c[<span class="tok-number">0</span>..]);</span> <span class="line" id="L563"></span> <span class="line" id="L564"> <span class="tok-kw">const</span> extended_nonce = [_]<span class="tok-type">u8</span>{<span class="tok-number">0x42</span>} <span class="tok-number">24</span>;</span> <span class="line" id="L565"> XSalsa20.xor(&c, msg[<span class="tok-number">0</span>..], <span class="tok-number">0</span>, key, extended_nonce);</span> <span class="line" id="L566"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"b4ab7d82e750ec07644fa3281bce6cd91d4243f9"</span>, c[<span class="tok-number">0</span>..]);</span> <span class="line" id="L567">}</span> <span class="line" id="L568"></span> <span class="line" id="L569"><span class="tok-kw">test</span> <span class="tok-str">"xsalsa20poly1305"</span> {</span> <span class="line" id="L570"> <span class="tok-kw">var</span> msg: [<span class="tok-number">100</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L571"> <span class="tok-kw">var</span> msg2: [msg.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L572"> <span class="tok-kw">var</span> c: [msg.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L573"> <span class="tok-kw">var</span> key: [XSalsa20Poly1305.key_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L574"> <span class="tok-kw">var</span> nonce: [XSalsa20Poly1305.nonce_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L575"> <span class="tok-kw">var</span> tag: [XSalsa20Poly1305.tag_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L576"> crypto.random.bytes(&msg);</span> <span class="line" id="L577"> crypto.random.bytes(&key);</span> <span class="line" id="L578"> crypto.random.bytes(&nonce);</span> <span class="line" id="L579"></span> <span class="line" id="L580"> XSalsa20Poly1305.encrypt(c[<span class="tok-number">0</span>..], &tag, msg[<span class="tok-number">0</span>..], <span class="tok-str">"ad"</span>, nonce, key);</span> <span class="line" id="L581"> <span class="tok-kw">try</span> XSalsa20Poly1305.decrypt(msg2[<span class="tok-number">0</span>..], c[<span class="tok-number">0</span>..], tag, <span class="tok-str">"ad"</span>, nonce, key);</span> <span class="line" id="L582">}</span> <span class="line" id="L583"></span> <span class="line" id="L584"><span class="tok-kw">test</span> <span class="tok-str">"xsalsa20poly1305 secretbox"</span> {</span> <span class="line" id="L585"> <span class="tok-kw">var</span> msg: [<span class="tok-number">100</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L586"> <span class="tok-kw">var</span> msg2: [msg.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L587"> <span class="tok-kw">var</span> key: [XSalsa20Poly1305.key_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L588"> <span class="tok-kw">var</span> nonce: [Box.nonce_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L589"> <span class="tok-kw">var</span> boxed: [msg.len + Box.tag_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L590"> crypto.random.bytes(&msg);</span> <span class="line" id="L591"> crypto.random.bytes(&key);</span> <span class="line" id="L592"> crypto.random.bytes(&nonce);</span> <span class="line" id="L593"></span> <span class="line" id="L594"> SecretBox.seal(boxed[<span class="tok-number">0</span>..], msg[<span class="tok-number">0</span>..], nonce, key);</span> <span class="line" id="L595"> <span class="tok-kw">try</span> SecretBox.open(msg2[<span class="tok-number">0</span>..], boxed[<span class="tok-number">0</span>..], nonce, key);</span> <span class="line" id="L596">}</span> <span class="line" id="L597"></span> <span class="line" id="L598"><span class="tok-kw">test</span> <span class="tok-str">"xsalsa20poly1305 box"</span> {</span> <span class="line" id="L599"> <span class="tok-kw">var</span> msg: [<span class="tok-number">100</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L600"> <span class="tok-kw">var</span> msg2: [msg.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L601"> <span class="tok-kw">var</span> nonce: [Box.nonce_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L602"> <span class="tok-kw">var</span> boxed: [msg.len + Box.tag_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L603"> crypto.random.bytes(&msg);</span> <span class="line" id="L604"> crypto.random.bytes(&nonce);</span> <span class="line" id="L605"></span> <span class="line" id="L606"> <span class="tok-kw">var</span> kp1 = <span class="tok-kw">try</span> Box.KeyPair.create(<span class="tok-null">null</span>);</span> <span class="line" id="L607"> <span class="tok-kw">var</span> kp2 = <span class="tok-kw">try</span> Box.KeyPair.create(<span class="tok-null">null</span>);</span> <span class="line" id="L608"> <span class="tok-kw">try</span> Box.seal(boxed[<span class="tok-number">0</span>..], msg[<span class="tok-number">0</span>..], nonce, kp1.public_key, kp2.secret_key);</span> <span class="line" id="L609"> <span class="tok-kw">try</span> Box.open(msg2[<span class="tok-number">0</span>..], boxed[<span class="tok-number">0</span>..], nonce, kp2.public_key, kp1.secret_key);</span> <span class="line" id="L610">}</span> <span class="line" id="L611"></span> <span class="line" id="L612"><span class="tok-kw">test</span> <span class="tok-str">"xsalsa20poly1305 sealedbox"</span> {</span> <span class="line" id="L613"> <span class="tok-kw">var</span> msg: [<span class="tok-number">100</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L614"> <span class="tok-kw">var</span> msg2: [msg.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L615"> <span class="tok-kw">var</span> boxed: [msg.len + SealedBox.seal_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L616"> crypto.random.bytes(&msg);</span> <span class="line" id="L617"></span> <span class="line" id="L618"> <span class="tok-kw">var</span> kp = <span class="tok-kw">try</span> Box.KeyPair.create(<span class="tok-null">null</span>);</span> <span class="line" id="L619"> <span class="tok-kw">try</span> SealedBox.seal(boxed[<span class="tok-number">0</span>..], msg[<span class="tok-number">0</span>..], kp.public_key);</span> <span class="line" id="L620"> <span class="tok-kw">try</span> SealedBox.open(msg2[<span class="tok-number">0</span>..], boxed[<span class="tok-number">0</span>..], kp);</span> <span class="line" id="L621">}</span> <span class="line" id="L622"></span> <span class="line" id="L623"><span class="tok-kw">test</span> <span class="tok-str">"secretbox twoblocks"</span> {</span> <span class="line" id="L624"> <span class="tok-kw">const</span> key = [_]<span class="tok-type">u8</span>{ <span class="tok-number">0xc9</span>, <span class="tok-number">0xc9</span>, <span class="tok-number">0x4d</span>, <span class="tok-number">0xcf</span>, <span class="tok-number">0x68</span>, <span class="tok-number">0xbe</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0xe4</span>, <span class="tok-number">0x7f</span>, <span class="tok-number">0xe6</span>, <span class="tok-number">0x13</span>, <span class="tok-number">0x26</span>, <span class="tok-number">0xfc</span>, <span class="tok-number">0xc4</span>, <span class="tok-number">0x2f</span>, <span class="tok-number">0xd0</span>, <span class="tok-number">0xdb</span>, <span class="tok-number">0x93</span>, <span class="tok-number">0x91</span>, <span class="tok-number">0x1c</span>, <span class="tok-number">0x09</span>, <span class="tok-number">0x94</span>, <span class="tok-number">0x89</span>, <span class="tok-number">0xe1</span>, <span class="tok-number">0x1b</span>, <span class="tok-number">0x88</span>, <span class="tok-number">0x63</span>, <span class="tok-number">0x18</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0x64</span>, <span class="tok-number">0x8b</span>, <span class="tok-number">0x7b</span> };</span> <span class="line" id="L625"> <span class="tok-kw">const</span> nonce = [_]<span class="tok-type">u8</span>{ <span class="tok-number">0xa4</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0xe9</span>, <span class="tok-number">0x0a</span>, <span class="tok-number">0x07</span>, <span class="tok-number">0x68</span>, <span class="tok-number">0x6e</span>, <span class="tok-number">0x9a</span>, <span class="tok-number">0x2b</span>, <span class="tok-number">0x6d</span>, <span class="tok-number">0xd4</span>, <span class="tok-number">0x59</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x72</span>, <span class="tok-number">0x3e</span>, <span class="tok-number">0xd3</span>, <span class="tok-number">0x8a</span>, <span class="tok-number">0x67</span>, <span class="tok-number">0x55</span>, <span class="tok-number">0xc7</span>, <span class="tok-number">0x9e</span>, <span class="tok-number">0x3e</span>, <span class="tok-number">0x77</span>, <span class="tok-number">0xdc</span> };</span> <span class="line" id="L626"> <span class="tok-kw">const</span> msg = [_]<span class="tok-type">u8</span>{<span class="tok-str">'a'</span>} ** <span class="tok-number">97</span>;</span> <span class="line" id="L627"> <span class="tok-kw">var</span> ciphertext: [msg.len + SecretBox.tag_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L628"> SecretBox.seal(&ciphertext, &msg, nonce, key);</span> <span class="line" id="L629"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"b05760e217288ba079caa2fd57fd3701784974ffcfda20fe523b89211ad8af065a6eb37cdb29d51aca5bd75dafdd21d18b044c54bb7c526cf576c94ee8900f911ceab0147e82b667a28c52d58ceb29554ff45471224d37b03256b01c119b89ff6d36855de8138d103386dbc9d971f52261"</span>, &ciphertext);</span> <span class="line" id="L630">}</span> <span class="line" id="L631"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/crypto/hmac.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/hmac.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"../std.zig"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> crypto = std.crypto;</span> <span class="line" id="L3"><span class="tok-kw">const</span> debug = std.debug;</span> <span class="line" id="L4"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L5"></span> <span class="line" id="L6"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> HmacMd5 = Hmac(crypto.hash.Md5);</span> <span class="line" id="L7"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> HmacSha1 = Hmac(crypto.hash.Sha1);</span> <span class="line" id="L8"></span> <span class="line" id="L9"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> sha2 = <span class="tok-kw">struct</span> {</span> <span class="line" id="L10"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> HmacSha224 = Hmac(crypto.hash.sha2.Sha224);</span> <span class="line" id="L11"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> HmacSha256 = Hmac(crypto.hash.sha2.Sha256);</span> <span class="line" id="L12"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> HmacSha384 = Hmac(crypto.hash.sha2.Sha384);</span> <span class="line" id="L13"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> HmacSha512 = Hmac(crypto.hash.sha2.Sha512);</span> <span class="line" id="L14">};</span> <span class="line" id="L15"></span> <span class="line" id="L16"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">Hmac</span>(<span class="tok-kw">comptime</span> Hash: <span class="tok-type">type</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L17"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L18"> <span class="tok-kw">const</span> Self = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L19"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> mac_length = Hash.digest_length;</span> <span class="line" id="L20"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> key_length_min = <span class="tok-number">0</span>;</span> <span class="line" id="L21"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> key_length = mac_length; <span class="tok-comment">// recommended key length</span> </span> <span class="line" id="L22"></span> <span class="line" id="L23"> o_key_pad: [Hash.block_length]<span class="tok-type">u8</span>,</span> <span class="line" id="L24"> hash: Hash,</span> <span class="line" id="L25"></span> <span class="line" id="L26"> <span class="tok-comment">// HMAC(k, m) = H(o_key_pad \|\| H(i_key_pad \|\| msg)) where \|\| is concatenation</span> </span> <span class="line" id="L27"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">create</span>(out: [mac_length]<span class="tok-type">u8</span>, msg: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, key: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L28"> <span class="tok-kw">var</span> ctx = Self.init(key);</span> <span class="line" id="L29"> ctx.update(msg);</span> <span class="line" id="L30"> ctx.final(out);</span> <span class="line" id="L31"> }</span> <span class="line" id="L32"></span> <span class="line" id="L33"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">init</span>(key: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) Self {</span> <span class="line" id="L34"> <span class="tok-kw">var</span> ctx: Self = <span class="tok-null">undefined</span>;</span> <span class="line" id="L35"> <span class="tok-kw">var</span> scratch: [Hash.block_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L36"> <span class="tok-kw">var</span> i_key_pad: [Hash.block_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L37"></span> <span class="line" id="L38"> <span class="tok-comment">// Normalize key length to block size of hash</span> </span> <span class="line" id="L39"> <span class="tok-kw">if</span> (key.len > Hash.block_length) {</span> <span class="line" id="L40"> Hash.hash(key, scratch[<span class="tok-number">0</span>..mac_length], .{});</span> <span class="line" id="L41"> <span class="tok-builtin">@memset</span>(scratch[mac_length..Hash.block_length], <span class="tok-number">0</span>);</span> <span class="line" id="L42"> } <span class="tok-kw">else</span> <span class="tok-kw">if</span> (key.len < Hash.block_length) {</span> <span class="line" id="L43"> <span class="tok-builtin">@memcpy</span>(scratch[<span class="tok-number">0</span>..key.len], key);</span> <span class="line" id="L44"> <span class="tok-builtin">@memset</span>(scratch[key.len..Hash.block_length], <span class="tok-number">0</span>);</span> <span class="line" id="L45"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L46"> <span class="tok-builtin">@memcpy</span>(&scratch, key);</span> <span class="line" id="L47"> }</span> <span class="line" id="L48"></span> <span class="line" id="L49"> <span class="tok-kw">for</span> (&ctx.o_key_pad, <span class="tok-number">0</span>..) \|b, i\| {</span> <span class="line" id="L50"> b.* = scratch[i] ^ <span class="tok-number">0x5c</span>;</span> <span class="line" id="L51"> }</span> <span class="line" id="L52"></span> <span class="line" id="L53"> <span class="tok-kw">for</span> (&i_key_pad, <span class="tok-number">0</span>..) \|b, i\| {</span> <span class="line" id="L54"> b. = scratch[i] ^ <span class="tok-number">0x36</span>;</span> <span class="line" id="L55"> }</span> <span class="line" id="L56"></span> <span class="line" id="L57"> ctx.hash = Hash.init(.{});</span> <span class="line" id="L58"> ctx.hash.update(&i_key_pad);</span> <span class="line" id="L59"> <span class="tok-kw">return</span> ctx;</span> <span class="line" id="L60"> }</span> <span class="line" id="L61"></span> <span class="line" id="L62"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">update</span>(ctx: Self, msg: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L63"> ctx.hash.update(msg);</span> <span class="line" id="L64"> }</span> <span class="line" id="L65"></span> <span class="line" id="L66"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">final</span>(ctx: Self, out: *[mac_length]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L67"> <span class="tok-kw">var</span> scratch: [mac_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L68"> ctx.hash.final(&scratch);</span> <span class="line" id="L69"> <span class="tok-kw">var</span> ohash = Hash.init(.{});</span> <span class="line" id="L70"> ohash.update(&ctx.o_key_pad);</span> <span class="line" id="L71"> ohash.update(&scratch);</span> <span class="line" id="L72"> ohash.final(out);</span> <span class="line" id="L73"> }</span> <span class="line" id="L74"> };</span> <span class="line" id="L75">}</span> <span class="line" id="L76"></span> <span class="line" id="L77"><span class="tok-kw">const</span> htest = <span class="tok-builtin">@import</span>(<span class="tok-str">"test.zig"</span>);</span> <span class="line" id="L78"></span> <span class="line" id="L79"><span class="tok-kw">test</span> <span class="tok-str">"hmac md5"</span> {</span> <span class="line" id="L80"> <span class="tok-kw">var</span> out: [HmacMd5.mac_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L81"> HmacMd5.create(out[<span class="tok-number">0</span>..], <span class="tok-str">""</span>, <span class="tok-str">""</span>);</span> <span class="line" id="L82"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"74e6f7298a9c2d168935f58c001bad88"</span>, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L83"></span> <span class="line" id="L84"> HmacMd5.create(out[<span class="tok-number">0</span>..], <span class="tok-str">"The quick brown fox jumps over the lazy dog"</span>, <span class="tok-str">"key"</span>);</span> <span class="line" id="L85"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"80070713463e7749b90c2dc24911e275"</span>, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L86">}</span> <span class="line" id="L87"></span> <span class="line" id="L88"><span class="tok-kw">test</span> <span class="tok-str">"hmac sha1"</span> {</span> <span class="line" id="L89"> <span class="tok-kw">var</span> out: [HmacSha1.mac_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L90"> HmacSha1.create(out[<span class="tok-number">0</span>..], <span class="tok-str">""</span>, <span class="tok-str">""</span>);</span> <span class="line" id="L91"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"fbdb1d1b18aa6c08324b7d64b71fb76370690e1d"</span>, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L92"></span> <span class="line" id="L93"> HmacSha1.create(out[<span class="tok-number">0</span>..], <span class="tok-str">"The quick brown fox jumps over the lazy dog"</span>, <span class="tok-str">"key"</span>);</span> <span class="line" id="L94"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"de7c9b85b8b78aa6bc8a7a36f70a90701c9db4d9"</span>, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L95">}</span> <span class="line" id="L96"></span> <span class="line" id="L97"><span class="tok-kw">test</span> <span class="tok-str">"hmac sha256"</span> {</span> <span class="line" id="L98"> <span class="tok-kw">var</span> out: [sha2.HmacSha256.mac_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L99"> sha2.HmacSha256.create(out[<span class="tok-number">0</span>..], <span class="tok-str">""</span>, <span class="tok-str">""</span>);</span> <span class="line" id="L100"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"b613679a0814d9ec772f95d778c35fc5ff1697c493715653c6c712144292c5ad"</span>, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L101"></span> <span class="line" id="L102"> sha2.HmacSha256.create(out[<span class="tok-number">0</span>..], <span class="tok-str">"The quick brown fox jumps over the lazy dog"</span>, <span class="tok-str">"key"</span>);</span> <span class="line" id="L103"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"f7bc83f430538424b13298e6aa6fb143ef4d59a14946175997479dbc2d1a3cd8"</span>, out[<span class="tok-number">0</span>..]);</span> <span class="line" id="L104">}</span> <span class="line" id="L105"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/crypto/phc_encoding.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/phc_encoding.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-comment">// https://github.com/P-H-C/phc-string-format</span> </span> <span class="line" id="L2"></span> <span class="line" id="L3"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L4"><span class="tok-kw">const</span> fmt = std.fmt;</span> <span class="line" id="L5"><span class="tok-kw">const</span> io = std.io;</span> <span class="line" id="L6"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L7"><span class="tok-kw">const</span> meta = std.meta;</span> <span class="line" id="L8"></span> <span class="line" id="L9"><span class="tok-kw">const</span> fields_delimiter = <span class="tok-str">"$"</span>;</span> <span class="line" id="L10"><span class="tok-kw">const</span> fields_delimiter_scalar = <span class="tok-str">'$'</span>;</span> <span class="line" id="L11"><span class="tok-kw">const</span> version_param_name = <span class="tok-str">"v"</span>;</span> <span class="line" id="L12"><span class="tok-kw">const</span> params_delimiter = <span class="tok-str">","</span>;</span> <span class="line" id="L13"><span class="tok-kw">const</span> params_delimiter_scalar = <span class="tok-str">','</span>;</span> <span class="line" id="L14"><span class="tok-kw">const</span> kv_delimiter = <span class="tok-str">"="</span>;</span> <span class="line" id="L15"><span class="tok-kw">const</span> kv_delimiter_scalar = <span class="tok-str">'='</span>;</span> <span class="line" id="L16"></span> <span class="line" id="L17"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Error = std.crypto.errors.EncodingError \|\| <span class="tok-kw">error</span>{NoSpaceLeft};</span> <span class="line" id="L18"></span> <span class="line" id="L19"><span class="tok-kw">const</span> B64Decoder = std.base64.standard_no_pad.Decoder;</span> <span class="line" id="L20"><span class="tok-kw">const</span> B64Encoder = std.base64.standard_no_pad.Encoder;</span> <span class="line" id="L21"></span> <span class="line" id="L22"><span class="tok-comment">/// A wrapped binary value whose maximum size is `max_len`.</span></span> <span class="line" id="L23"><span class="tok-comment">///</span></span> <span class="line" id="L24"><span class="tok-comment">/// This type must be used whenever a binary value is encoded in a PHC-formatted string.</span></span> <span class="line" id="L25"><span class="tok-comment">/// This includes `salt`, `hash`, and any other binary parameters such as keys.</span></span> <span class="line" id="L26"><span class="tok-comment">///</span></span> <span class="line" id="L27"><span class="tok-comment">/// Once initialized, the actual value can be read with the `constSlice()` function.</span></span> <span class="line" id="L28"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">BinValue</span>(<span class="tok-kw">comptime</span> max_len: <span class="tok-type">usize</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L29"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L30"> <span class="tok-kw">const</span> Self = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L31"> <span class="tok-kw">const</span> capacity = max_len;</span> <span class="line" id="L32"> <span class="tok-kw">const</span> max_encoded_length = B64Encoder.calcSize(max_len);</span> <span class="line" id="L33"></span> <span class="line" id="L34"> buf: [max_len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>,</span> <span class="line" id="L35"> len: <span class="tok-type">usize</span> = <span class="tok-number">0</span>,</span> <span class="line" id="L36"></span> <span class="line" id="L37"> <span class="tok-comment">/// Wrap an existing byte slice</span></span> <span class="line" id="L38"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromSlice</span>(slice: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) Error!Self {</span> <span class="line" id="L39"> <span class="tok-kw">if</span> (slice.len > capacity) <span class="tok-kw">return</span> Error.NoSpaceLeft;</span> <span class="line" id="L40"> <span class="tok-kw">var</span> bin_value: Self = <span class="tok-null">undefined</span>;</span> <span class="line" id="L41"> <span class="tok-builtin">@memcpy</span>(bin_value.buf[<span class="tok-number">0</span>..slice.len], slice);</span> <span class="line" id="L42"> bin_value.len = slice.len;</span> <span class="line" id="L43"> <span class="tok-kw">return</span> bin_value;</span> <span class="line" id="L44"> }</span> <span class="line" id="L45"></span> <span class="line" id="L46"> <span class="tok-comment">/// Return the slice containing the actual value.</span></span> <span class="line" id="L47"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">constSlice</span>(self: <span class="tok-kw">const</span> Self) []<span class="tok-kw">const</span> <span class="tok-type">u8</span> {</span> <span class="line" id="L48"> <span class="tok-kw">return</span> self.buf[<span class="tok-number">0</span>..self.len];</span> <span class="line" id="L49"> }</span> <span class="line" id="L50"></span> <span class="line" id="L51"> <span class="tok-kw">fn</span> <span class="tok-fn">fromB64</span>(self: Self, str: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L52"> <span class="tok-kw">const</span> len = B64Decoder.calcSizeForSlice(str) <span class="tok-kw">catch</span> <span class="tok-kw">return</span> Error.InvalidEncoding;</span> <span class="line" id="L53"> <span class="tok-kw">if</span> (len > self.buf.len) <span class="tok-kw">return</span> Error.NoSpaceLeft;</span> <span class="line" id="L54"> B64Decoder.decode(&self.buf, str) <span class="tok-kw">catch</span> <span class="tok-kw">return</span> Error.InvalidEncoding;</span> <span class="line" id="L55"> self.len = len;</span> <span class="line" id="L56"> }</span> <span class="line" id="L57"></span> <span class="line" id="L58"> <span class="tok-kw">fn</span> <span class="tok-fn">toB64</span>(self: *<span class="tok-kw">const</span> Self, buf: []<span class="tok-type">u8</span>) ![]<span class="tok-kw">const</span> <span class="tok-type">u8</span> {</span> <span class="line" id="L59"> <span class="tok-kw">const</span> value = self.constSlice();</span> <span class="line" id="L60"> <span class="tok-kw">const</span> len = B64Encoder.calcSize(value.len);</span> <span class="line" id="L61"> <span class="tok-kw">if</span> (len > buf.len) <span class="tok-kw">return</span> Error.NoSpaceLeft;</span> <span class="line" id="L62"> <span class="tok-kw">return</span> B64Encoder.encode(buf, value);</span> <span class="line" id="L63"> }</span> <span class="line" id="L64"> };</span> <span class="line" id="L65">}</span> <span class="line" id="L66"></span> <span class="line" id="L67"><span class="tok-comment">/// Deserialize a PHC-formatted string into a structure `HashResult`.</span></span> <span class="line" id="L68"><span class="tok-comment">///</span></span> <span class="line" id="L69"><span class="tok-comment">/// Required field in the `HashResult` structure:</span></span> <span class="line" id="L70"><span class="tok-comment">/// - `alg_id`: algorithm identifier</span></span> <span class="line" id="L71"><span class="tok-comment">/// Optional, special fields:</span></span> <span class="line" id="L72"><span class="tok-comment">/// - `alg_version`: algorithm version (unsigned integer)</span></span> <span class="line" id="L73"><span class="tok-comment">/// - `salt`: salt</span></span> <span class="line" id="L74"><span class="tok-comment">/// - `hash`: output of the hash function</span></span> <span class="line" id="L75"><span class="tok-comment">///</span></span> <span class="line" id="L76"><span class="tok-comment">/// Other fields will also be deserialized from the function parameters section.</span></span> <span class="line" id="L77"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">deserialize</span>(<span class="tok-kw">comptime</span> HashResult: <span class="tok-type">type</span>, str: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) Error!HashResult {</span> <span class="line" id="L78"> <span class="tok-kw">var</span> out = mem.zeroes(HashResult);</span> <span class="line" id="L79"> <span class="tok-kw">var</span> it = mem.splitScalar(<span class="tok-type">u8</span>, str, fields_delimiter_scalar);</span> <span class="line" id="L80"> <span class="tok-kw">var</span> set_fields: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L81"></span> <span class="line" id="L82"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L83"> <span class="tok-comment">// Read the algorithm identifier</span> </span> <span class="line" id="L84"> <span class="tok-kw">if</span> ((it.next() <span class="tok-kw">orelse</span> <span class="tok-kw">return</span> Error.InvalidEncoding).len != <span class="tok-number">0</span>) <span class="tok-kw">return</span> Error.InvalidEncoding;</span> <span class="line" id="L85"> out.alg_id = it.next() <span class="tok-kw">orelse</span> <span class="tok-kw">return</span> Error.InvalidEncoding;</span> <span class="line" id="L86"> set_fields += <span class="tok-number">1</span>;</span> <span class="line" id="L87"></span> <span class="line" id="L88"> <span class="tok-comment">// Read the optional version number</span> </span> <span class="line" id="L89"> <span class="tok-kw">var</span> field = it.next() <span class="tok-kw">orelse</span> <span class="tok-kw">break</span>;</span> <span class="line" id="L90"> <span class="tok-kw">if</span> (kvSplit(field)) \|opt_version\| {</span> <span class="line" id="L91"> <span class="tok-kw">if</span> (mem.eql(<span class="tok-type">u8</span>, opt_version.key, version_param_name)) {</span> <span class="line" id="L92"> <span class="tok-kw">if</span> (<span class="tok-builtin">@hasField</span>(HashResult, <span class="tok-str">"alg_version"</span>)) {</span> <span class="line" id="L93"> <span class="tok-kw">const</span> value_type_info = <span class="tok-kw">switch</span> (<span class="tok-builtin">@typeInfo</span>(<span class="tok-builtin">@TypeOf</span>(out.alg_version))) {</span> <span class="line" id="L94"> .Optional => \|opt\| <span class="tok-kw">comptime</span> <span class="tok-builtin">@typeInfo</span>(opt.child),</span> <span class="line" id="L95"> <span class="tok-kw">else</span> => \|t\| t,</span> <span class="line" id="L96"> };</span> <span class="line" id="L97"> out.alg_version = fmt.parseUnsigned(</span> <span class="line" id="L98"> <span class="tok-builtin">@Type</span>(value_type_info),</span> <span class="line" id="L99"> opt_version.value,</span> <span class="line" id="L100"> <span class="tok-number">10</span>,</span> <span class="line" id="L101"> ) <span class="tok-kw">catch</span> <span class="tok-kw">return</span> Error.InvalidEncoding;</span> <span class="line" id="L102"> set_fields += <span class="tok-number">1</span>;</span> <span class="line" id="L103"> }</span> <span class="line" id="L104"> field = it.next() <span class="tok-kw">orelse</span> <span class="tok-kw">break</span>;</span> <span class="line" id="L105"> }</span> <span class="line" id="L106"> } <span class="tok-kw">else</span> \|_\| {}</span> <span class="line" id="L107"></span> <span class="line" id="L108"> <span class="tok-comment">// Read optional parameters</span> </span> <span class="line" id="L109"> <span class="tok-kw">var</span> has_params = <span class="tok-null">false</span>;</span> <span class="line" id="L110"> <span class="tok-kw">var</span> it_params = mem.splitScalar(<span class="tok-type">u8</span>, field, params_delimiter_scalar);</span> <span class="line" id="L111"> <span class="tok-kw">while</span> (it_params.next()) \|params\| {</span> <span class="line" id="L112"> <span class="tok-kw">const</span> param = kvSplit(params) <span class="tok-kw">catch</span> <span class="tok-kw">break</span>;</span> <span class="line" id="L113"> <span class="tok-kw">var</span> found = <span class="tok-null">false</span>;</span> <span class="line" id="L114"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (<span class="tok-kw">comptime</span> meta.fields(HashResult)) \|p\| {</span> <span class="line" id="L115"> <span class="tok-kw">if</span> (mem.eql(<span class="tok-type">u8</span>, p.name, param.key)) {</span> <span class="line" id="L116"> <span class="tok-kw">switch</span> (<span class="tok-builtin">@typeInfo</span>(p.<span class="tok-type">type</span>)) {</span> <span class="line" id="L117"> .Int => <span class="tok-builtin">@field</span>(out, p.name) = fmt.parseUnsigned(</span> <span class="line" id="L118"> p.<span class="tok-type">type</span>,</span> <span class="line" id="L119"> param.value,</span> <span class="line" id="L120"> <span class="tok-number">10</span>,</span> <span class="line" id="L121"> ) <span class="tok-kw">catch</span> <span class="tok-kw">return</span> Error.InvalidEncoding,</span> <span class="line" id="L122"> .Pointer => \|ptr\| {</span> <span class="line" id="L123"> <span class="tok-kw">if</span> (!ptr.is_const) <span class="tok-builtin">@compileError</span>(<span class="tok-str">"Value slice must be constant"</span>);</span> <span class="line" id="L124"> <span class="tok-builtin">@field</span>(out, p.name) = param.value;</span> <span class="line" id="L125"> },</span> <span class="line" id="L126"> .Struct => <span class="tok-kw">try</span> <span class="tok-builtin">@field</span>(out, p.name).fromB64(param.value),</span> <span class="line" id="L127"> <span class="tok-kw">else</span> => std.debug.panic(</span> <span class="line" id="L128"> <span class="tok-str">"Value for [{s}] must be an integer, a constant slice or a BinValue"</span>,</span> <span class="line" id="L129"> .{p.name},</span> <span class="line" id="L130"> ),</span> <span class="line" id="L131"> }</span> <span class="line" id="L132"> set_fields += <span class="tok-number">1</span>;</span> <span class="line" id="L133"> found = <span class="tok-null">true</span>;</span> <span class="line" id="L134"> <span class="tok-kw">break</span>;</span> <span class="line" id="L135"> }</span> <span class="line" id="L136"> }</span> <span class="line" id="L137"> <span class="tok-kw">if</span> (!found) <span class="tok-kw">return</span> Error.InvalidEncoding; <span class="tok-comment">// An unexpected parameter was found in the string</span> </span> <span class="line" id="L138"> has_params = <span class="tok-null">true</span>;</span> <span class="line" id="L139"> }</span> <span class="line" id="L140"></span> <span class="line" id="L141"> <span class="tok-comment">// No separator between an empty parameters set and the salt</span> </span> <span class="line" id="L142"> <span class="tok-kw">if</span> (has_params) field = it.next() <span class="tok-kw">orelse</span> <span class="tok-kw">break</span>;</span> <span class="line" id="L143"></span> <span class="line" id="L144"> <span class="tok-comment">// Read an optional salt</span> </span> <span class="line" id="L145"> <span class="tok-kw">if</span> (<span class="tok-builtin">@hasField</span>(HashResult, <span class="tok-str">"salt"</span>)) {</span> <span class="line" id="L146"> <span class="tok-kw">try</span> out.salt.fromB64(field);</span> <span class="line" id="L147"> set_fields += <span class="tok-number">1</span>;</span> <span class="line" id="L148"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L149"> <span class="tok-kw">return</span> Error.InvalidEncoding;</span> <span class="line" id="L150"> }</span> <span class="line" id="L151"></span> <span class="line" id="L152"> <span class="tok-comment">// Read an optional hash</span> </span> <span class="line" id="L153"> field = it.next() <span class="tok-kw">orelse</span> <span class="tok-kw">break</span>;</span> <span class="line" id="L154"> <span class="tok-kw">if</span> (<span class="tok-builtin">@hasField</span>(HashResult, <span class="tok-str">"hash"</span>)) {</span> <span class="line" id="L155"> <span class="tok-kw">try</span> out.hash.fromB64(field);</span> <span class="line" id="L156"> set_fields += <span class="tok-number">1</span>;</span> <span class="line" id="L157"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L158"> <span class="tok-kw">return</span> Error.InvalidEncoding;</span> <span class="line" id="L159"> }</span> <span class="line" id="L160"> <span class="tok-kw">break</span>;</span> <span class="line" id="L161"> }</span> <span class="line" id="L162"></span> <span class="line" id="L163"> <span class="tok-comment">// Check that all the required fields have been set, excluding optional values and parameters</span> </span> <span class="line" id="L164"> <span class="tok-comment">// with default values</span> </span> <span class="line" id="L165"> <span class="tok-kw">var</span> expected_fields: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L166"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (<span class="tok-kw">comptime</span> meta.fields(HashResult)) \|p\| {</span> <span class="line" id="L167"> <span class="tok-kw">if</span> (<span class="tok-builtin">@typeInfo</span>(p.<span class="tok-type">type</span>) != .Optional <span class="tok-kw">and</span> p.default_value == <span class="tok-null">null</span>) {</span> <span class="line" id="L168"> expected_fields += <span class="tok-number">1</span>;</span> <span class="line" id="L169"> }</span> <span class="line" id="L170"> }</span> <span class="line" id="L171"> <span class="tok-kw">if</span> (set_fields < expected_fields) <span class="tok-kw">return</span> Error.InvalidEncoding;</span> <span class="line" id="L172"></span> <span class="line" id="L173"> <span class="tok-kw">return</span> out;</span> <span class="line" id="L174">}</span> <span class="line" id="L175"></span> <span class="line" id="L176"><span class="tok-comment">/// Serialize parameters into a PHC string.</span></span> <span class="line" id="L177"><span class="tok-comment">///</span></span> <span class="line" id="L178"><span class="tok-comment">/// Required field for `params`:</span></span> <span class="line" id="L179"><span class="tok-comment">/// - `alg_id`: algorithm identifier</span></span> <span class="line" id="L180"><span class="tok-comment">/// Optional, special fields:</span></span> <span class="line" id="L181"><span class="tok-comment">/// - `alg_version`: algorithm version (unsigned integer)</span></span> <span class="line" id="L182"><span class="tok-comment">/// - `salt`: salt</span></span> <span class="line" id="L183"><span class="tok-comment">/// - `hash`: output of the hash function</span></span> <span class="line" id="L184"><span class="tok-comment">///</span></span> <span class="line" id="L185"><span class="tok-comment">/// `params` can also include any additional parameters.</span></span> <span class="line" id="L186"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">serialize</span>(params: <span class="tok-kw">anytype</span>, str: []<span class="tok-type">u8</span>) Error![]<span class="tok-kw">const</span> <span class="tok-type">u8</span> {</span> <span class="line" id="L187"> <span class="tok-kw">var</span> buf = io.fixedBufferStream(str);</span> <span class="line" id="L188"> <span class="tok-kw">try</span> serializeTo(params, buf.writer());</span> <span class="line" id="L189"> <span class="tok-kw">return</span> buf.getWritten();</span> <span class="line" id="L190">}</span> <span class="line" id="L191"></span> <span class="line" id="L192"><span class="tok-comment">/// Compute the number of bytes required to serialize `params`</span></span> <span class="line" id="L193"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">calcSize</span>(params: <span class="tok-kw">anytype</span>) <span class="tok-type">usize</span> {</span> <span class="line" id="L194"> <span class="tok-kw">var</span> buf = io.countingWriter(io.null_writer);</span> <span class="line" id="L195"> serializeTo(params, buf.writer()) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L196"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(buf.bytes_written));</span> <span class="line" id="L197">}</span> <span class="line" id="L198"></span> <span class="line" id="L199"><span class="tok-kw">fn</span> <span class="tok-fn">serializeTo</span>(params: <span class="tok-kw">anytype</span>, out: <span class="tok-kw">anytype</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L200"> <span class="tok-kw">const</span> HashResult = <span class="tok-builtin">@TypeOf</span>(params);</span> <span class="line" id="L201"> <span class="tok-kw">try</span> out.writeAll(fields_delimiter);</span> <span class="line" id="L202"> <span class="tok-kw">try</span> out.writeAll(params.alg_id);</span> <span class="line" id="L203"></span> <span class="line" id="L204"> <span class="tok-kw">if</span> (<span class="tok-builtin">@hasField</span>(HashResult, <span class="tok-str">"alg_version"</span>)) {</span> <span class="line" id="L205"> <span class="tok-kw">if</span> (<span class="tok-builtin">@typeInfo</span>(<span class="tok-builtin">@TypeOf</span>(params.alg_version)) == .Optional) {</span> <span class="line" id="L206"> <span class="tok-kw">if</span> (params.alg_version) \|alg_version\| {</span> <span class="line" id="L207"> <span class="tok-kw">try</span> out.print(</span> <span class="line" id="L208"> <span class="tok-str">"{s}{s}{s}{}"</span>,</span> <span class="line" id="L209"> .{ fields_delimiter, version_param_name, kv_delimiter, alg_version },</span> <span class="line" id="L210"> );</span> <span class="line" id="L211"> }</span> <span class="line" id="L212"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L213"> <span class="tok-kw">try</span> out.print(</span> <span class="line" id="L214"> <span class="tok-str">"{s}{s}{s}{}"</span>,</span> <span class="line" id="L215"> .{ fields_delimiter, version_param_name, kv_delimiter, params.alg_version },</span> <span class="line" id="L216"> );</span> <span class="line" id="L217"> }</span> <span class="line" id="L218"> }</span> <span class="line" id="L219"></span> <span class="line" id="L220"> <span class="tok-kw">var</span> has_params = <span class="tok-null">false</span>;</span> <span class="line" id="L221"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (<span class="tok-kw">comptime</span> meta.fields(HashResult)) \|p\| {</span> <span class="line" id="L222"> <span class="tok-kw">if</span> (<span class="tok-kw">comptime</span> !(mem.eql(<span class="tok-type">u8</span>, p.name, <span class="tok-str">"alg_id"</span>) <span class="tok-kw">or</span></span> <span class="line" id="L223"> mem.eql(<span class="tok-type">u8</span>, p.name, <span class="tok-str">"alg_version"</span>) <span class="tok-kw">or</span></span> <span class="line" id="L224"> mem.eql(<span class="tok-type">u8</span>, p.name, <span class="tok-str">"hash"</span>) <span class="tok-kw">or</span></span> <span class="line" id="L225"> mem.eql(<span class="tok-type">u8</span>, p.name, <span class="tok-str">"salt"</span>)))</span> <span class="line" id="L226"> {</span> <span class="line" id="L227"> <span class="tok-kw">const</span> value = <span class="tok-builtin">@field</span>(params, p.name);</span> <span class="line" id="L228"> <span class="tok-kw">try</span> out.writeAll(<span class="tok-kw">if</span> (has_params) params_delimiter <span class="tok-kw">else</span> fields_delimiter);</span> <span class="line" id="L229"> <span class="tok-kw">if</span> (<span class="tok-builtin">@typeInfo</span>(p.<span class="tok-type">type</span>) == .Struct) {</span> <span class="line" id="L230"> <span class="tok-kw">var</span> buf: [<span class="tok-builtin">@TypeOf</span>(value).max_encoded_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L231"> <span class="tok-kw">try</span> out.print(<span class="tok-str">"{s}{s}{s}"</span>, .{ p.name, kv_delimiter, <span class="tok-kw">try</span> value.toB64(&buf) });</span> <span class="line" id="L232"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L233"> <span class="tok-kw">try</span> out.print(</span> <span class="line" id="L234"> <span class="tok-kw">if</span> (<span class="tok-builtin">@typeInfo</span>(<span class="tok-builtin">@TypeOf</span>(value)) == .Pointer) <span class="tok-str">"{s}{s}{s}"</span> <span class="tok-kw">else</span> <span class="tok-str">"{s}{s}{}"</span>,</span> <span class="line" id="L235"> .{ p.name, kv_delimiter, value },</span> <span class="line" id="L236"> );</span> <span class="line" id="L237"> }</span> <span class="line" id="L238"> has_params = <span class="tok-null">true</span>;</span> <span class="line" id="L239"> }</span> <span class="line" id="L240"> }</span> <span class="line" id="L241"></span> <span class="line" id="L242"> <span class="tok-kw">var</span> has_salt = <span class="tok-null">false</span>;</span> <span class="line" id="L243"> <span class="tok-kw">if</span> (<span class="tok-builtin">@hasField</span>(HashResult, <span class="tok-str">"salt"</span>)) {</span> <span class="line" id="L244"> <span class="tok-kw">var</span> buf: [<span class="tok-builtin">@TypeOf</span>(params.salt).max_encoded_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L245"> <span class="tok-kw">try</span> out.print(<span class="tok-str">"{s}{s}"</span>, .{ fields_delimiter, <span class="tok-kw">try</span> params.salt.toB64(&buf) });</span> <span class="line" id="L246"> has_salt = <span class="tok-null">true</span>;</span> <span class="line" id="L247"> }</span> <span class="line" id="L248"></span> <span class="line" id="L249"> <span class="tok-kw">if</span> (<span class="tok-builtin">@hasField</span>(HashResult, <span class="tok-str">"hash"</span>)) {</span> <span class="line" id="L250"> <span class="tok-kw">var</span> buf: [<span class="tok-builtin">@TypeOf</span>(params.hash).max_encoded_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L251"> <span class="tok-kw">if</span> (!has_salt) <span class="tok-kw">try</span> out.writeAll(fields_delimiter);</span> <span class="line" id="L252"> <span class="tok-kw">try</span> out.print(<span class="tok-str">"{s}{s}"</span>, .{ fields_delimiter, <span class="tok-kw">try</span> params.hash.toB64(&buf) });</span> <span class="line" id="L253"> }</span> <span class="line" id="L254">}</span> <span class="line" id="L255"></span> <span class="line" id="L256"><span class="tok-comment">// Split a `key=value` string into `key` and `value`</span> </span> <span class="line" id="L257"><span class="tok-kw">fn</span> <span class="tok-fn">kvSplit</span>(str: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) !<span class="tok-kw">struct</span> { key: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, value: []<span class="tok-kw">const</span> <span class="tok-type">u8</span> } {</span> <span class="line" id="L258"> <span class="tok-kw">var</span> it = mem.splitScalar(<span class="tok-type">u8</span>, str, kv_delimiter_scalar);</span> <span class="line" id="L259"> <span class="tok-kw">const</span> key = it.first();</span> <span class="line" id="L260"> <span class="tok-kw">const</span> value = it.next() <span class="tok-kw">orelse</span> <span class="tok-kw">return</span> Error.InvalidEncoding;</span> <span class="line" id="L261"> <span class="tok-kw">const</span> ret = .{ .key = key, .value = value };</span> <span class="line" id="L262"> <span class="tok-kw">return</span> ret;</span> <span class="line" id="L263">}</span> <span class="line" id="L264"></span> <span class="line" id="L265"><span class="tok-kw">test</span> <span class="tok-str">"phc format - encoding/decoding"</span> {</span> <span class="line" id="L266"> <span class="tok-kw">const</span> Input = <span class="tok-kw">struct</span> {</span> <span class="line" id="L267"> str: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L268"> HashResult: <span class="tok-type">type</span>,</span> <span class="line" id="L269"> };</span> <span class="line" id="L270"> <span class="tok-kw">const</span> inputs = [_]Input{</span> <span class="line" id="L271"> .{</span> <span class="line" id="L272"> .str = <span class="tok-str">"$argon2id$v=19$key=a2V5,m=4096,t=0,p=1$X1NhbHQAAAAAAAAAAAAAAA$bWh++MKN1OiFHKgIWTLvIi1iHicmHH7+Fv3K88ifFfI"</span>,</span> <span class="line" id="L273"> .HashResult = <span class="tok-kw">struct</span> {</span> <span class="line" id="L274"> alg_id: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L275"> alg_version: <span class="tok-type">u16</span>,</span> <span class="line" id="L276"> key: BinValue(<span class="tok-number">16</span>),</span> <span class="line" id="L277"> m: <span class="tok-type">usize</span>,</span> <span class="line" id="L278"> t: <span class="tok-type">u64</span>,</span> <span class="line" id="L279"> p: <span class="tok-type">u32</span>,</span> <span class="line" id="L280"> salt: BinValue(<span class="tok-number">16</span>),</span> <span class="line" id="L281"> hash: BinValue(<span class="tok-number">32</span>),</span> <span class="line" id="L282"> },</span> <span class="line" id="L283"> },</span> <span class="line" id="L284"> .{</span> <span class="line" id="L285"> .str = <span class="tok-str">"$scrypt$v=1$ln=15,r=8,p=1$c2FsdHNhbHQ$dGVzdHBhc3M"</span>,</span> <span class="line" id="L286"> .HashResult = <span class="tok-kw">struct</span> {</span> <span class="line" id="L287"> alg_id: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L288"> alg_version: ?<span class="tok-type">u30</span>,</span> <span class="line" id="L289"> ln: <span class="tok-type">u6</span>,</span> <span class="line" id="L290"> r: <span class="tok-type">u30</span>,</span> <span class="line" id="L291"> p: <span class="tok-type">u30</span>,</span> <span class="line" id="L292"> salt: BinValue(<span class="tok-number">16</span>),</span> <span class="line" id="L293"> hash: BinValue(<span class="tok-number">16</span>),</span> <span class="line" id="L294"> },</span> <span class="line" id="L295"> },</span> <span class="line" id="L296"> .{</span> <span class="line" id="L297"> .str = <span class="tok-str">"$scrypt"</span>,</span> <span class="line" id="L298"> .HashResult = <span class="tok-kw">struct</span> { alg_id: []<span class="tok-kw">const</span> <span class="tok-type">u8</span> },</span> <span class="line" id="L299"> },</span> <span class="line" id="L300"> .{ .str = <span class="tok-str">"$scrypt$v=1"</span>, .HashResult = <span class="tok-kw">struct</span> { alg_id: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, alg_version: <span class="tok-type">u16</span> } },</span> <span class="line" id="L301"> .{</span> <span class="line" id="L302"> .str = <span class="tok-str">"$scrypt$ln=15,r=8,p=1"</span>,</span> <span class="line" id="L303"> .HashResult = <span class="tok-kw">struct</span> { alg_id: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, alg_version: ?<span class="tok-type">u30</span>, ln: <span class="tok-type">u6</span>, r: <span class="tok-type">u30</span>, p: <span class="tok-type">u30</span> },</span> <span class="line" id="L304"> },</span> <span class="line" id="L305"> .{</span> <span class="line" id="L306"> .str = <span class="tok-str">"$scrypt$c2FsdHNhbHQ"</span>,</span> <span class="line" id="L307"> .HashResult = <span class="tok-kw">struct</span> { alg_id: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, salt: BinValue(<span class="tok-number">16</span>) },</span> <span class="line" id="L308"> },</span> <span class="line" id="L309"> .{</span> <span class="line" id="L310"> .str = <span class="tok-str">"$scrypt$v=1$ln=15,r=8,p=1$c2FsdHNhbHQ"</span>,</span> <span class="line" id="L311"> .HashResult = <span class="tok-kw">struct</span> {</span> <span class="line" id="L312"> alg_id: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L313"> alg_version: <span class="tok-type">u16</span>,</span> <span class="line" id="L314"> ln: <span class="tok-type">u6</span>,</span> <span class="line" id="L315"> r: <span class="tok-type">u30</span>,</span> <span class="line" id="L316"> p: <span class="tok-type">u30</span>,</span> <span class="line" id="L317"> salt: BinValue(<span class="tok-number">16</span>),</span> <span class="line" id="L318"> },</span> <span class="line" id="L319"> },</span> <span class="line" id="L320"> .{</span> <span class="line" id="L321"> .str = <span class="tok-str">"$scrypt$v=1$ln=15,r=8,p=1"</span>,</span> <span class="line" id="L322"> .HashResult = <span class="tok-kw">struct</span> { alg_id: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, alg_version: ?<span class="tok-type">u30</span>, ln: <span class="tok-type">u6</span>, r: <span class="tok-type">u30</span>, p: <span class="tok-type">u30</span> },</span> <span class="line" id="L323"> },</span> <span class="line" id="L324"> .{</span> <span class="line" id="L325"> .str = <span class="tok-str">"$scrypt$v=1$c2FsdHNhbHQ$dGVzdHBhc3M"</span>,</span> <span class="line" id="L326"> .HashResult = <span class="tok-kw">struct</span> {</span> <span class="line" id="L327"> alg_id: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L328"> alg_version: <span class="tok-type">u16</span>,</span> <span class="line" id="L329"> salt: BinValue(<span class="tok-number">16</span>),</span> <span class="line" id="L330"> hash: BinValue(<span class="tok-number">16</span>),</span> <span class="line" id="L331"> },</span> <span class="line" id="L332"> },</span> <span class="line" id="L333"> .{</span> <span class="line" id="L334"> .str = <span class="tok-str">"$scrypt$v=1$c2FsdHNhbHQ"</span>,</span> <span class="line" id="L335"> .HashResult = <span class="tok-kw">struct</span> { alg_id: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, alg_version: <span class="tok-type">u16</span>, salt: BinValue(<span class="tok-number">16</span>) },</span> <span class="line" id="L336"> },</span> <span class="line" id="L337"> .{</span> <span class="line" id="L338"> .str = <span class="tok-str">"$scrypt$c2FsdHNhbHQ$dGVzdHBhc3M"</span>,</span> <span class="line" id="L339"> .HashResult = <span class="tok-kw">struct</span> { alg_id: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, salt: BinValue(<span class="tok-number">16</span>), hash: BinValue(<span class="tok-number">16</span>) },</span> <span class="line" id="L340"> },</span> <span class="line" id="L341"> };</span> <span class="line" id="L342"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (inputs) \|input\| {</span> <span class="line" id="L343"> <span class="tok-kw">const</span> v = <span class="tok-kw">try</span> deserialize(input.HashResult, input.str);</span> <span class="line" id="L344"> <span class="tok-kw">var</span> buf: [input.str.len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L345"> <span class="tok-kw">const</span> s1 = <span class="tok-kw">try</span> serialize(v, &buf);</span> <span class="line" id="L346"> <span class="tok-kw">try</span> std.testing.expectEqualSlices(<span class="tok-type">u8</span>, input.str, s1);</span> <span class="line" id="L347"> }</span> <span class="line" id="L348">}</span> <span class="line" id="L349"></span> <span class="line" id="L350"><span class="tok-kw">test</span> <span class="tok-str">"phc format - empty input string"</span> {</span> <span class="line" id="L351"> <span class="tok-kw">const</span> s = <span class="tok-str">""</span>;</span> <span class="line" id="L352"> <span class="tok-kw">const</span> v = deserialize(<span class="tok-kw">struct</span> { alg_id: []<span class="tok-kw">const</span> <span class="tok-type">u8</span> }, s);</span> <span class="line" id="L353"> <span class="tok-kw">try</span> std.testing.expectError(Error.InvalidEncoding, v);</span> <span class="line" id="L354">}</span> <span class="line" id="L355"></span> <span class="line" id="L356"><span class="tok-kw">test</span> <span class="tok-str">"phc format - hash without salt"</span> {</span> <span class="line" id="L357"> <span class="tok-kw">const</span> s = <span class="tok-str">"$scrypt"</span>;</span> <span class="line" id="L358"> <span class="tok-kw">const</span> v = deserialize(<span class="tok-kw">struct</span> { alg_id: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, hash: BinValue(<span class="tok-number">16</span>) }, s);</span> <span class="line" id="L359"> <span class="tok-kw">try</span> std.testing.expectError(Error.InvalidEncoding, v);</span> <span class="line" id="L360">}</span> <span class="line" id="L361"></span> <span class="line" id="L362"><span class="tok-kw">test</span> <span class="tok-str">"phc format - calcSize"</span> {</span> <span class="line" id="L363"> <span class="tok-kw">const</span> s = <span class="tok-str">"$scrypt$v=1$ln=15,r=8,p=1$c2FsdHNhbHQ$dGVzdHBhc3M"</span>;</span> <span class="line" id="L364"> <span class="tok-kw">const</span> v = <span class="tok-kw">try</span> deserialize(<span class="tok-kw">struct</span> {</span> <span class="line" id="L365"> alg_id: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L366"> alg_version: <span class="tok-type">u16</span>,</span> <span class="line" id="L367"> ln: <span class="tok-type">u6</span>,</span> <span class="line" id="L368"> r: <span class="tok-type">u30</span>,</span> <span class="line" id="L369"> p: <span class="tok-type">u30</span>,</span> <span class="line" id="L370"> salt: BinValue(<span class="tok-number">8</span>),</span> <span class="line" id="L371"> hash: BinValue(<span class="tok-number">8</span>),</span> <span class="line" id="L372"> }, s);</span> <span class="line" id="L373"> <span class="tok-kw">try</span> std.testing.expectEqual(calcSize(v), s.len);</span> <span class="line" id="L374">}</span> <span class="line" id="L375"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/crypto/kyber_d00.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/kyber_d00.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-comment">//! Implementation of the IND-CCA2 post-quantum secure key encapsulation</span></span> <span class="line" id="L2"><span class="tok-comment">//! mechanism (KEM) CRYSTALS-Kyber, as submitted to the third round of the NIST</span></span> <span class="line" id="L3"><span class="tok-comment">//! Post-Quantum Cryptography (v3.02/"draft00"), and selected for standardisation.</span></span> <span class="line" id="L4"><span class="tok-comment">//!</span></span> <span class="line" id="L5"><span class="tok-comment">//! Kyber will likely change before final standardisation.</span></span> <span class="line" id="L6"><span class="tok-comment">//!</span></span> <span class="line" id="L7"><span class="tok-comment">//! The namespace suffix (currently `_d00`) refers to the version currently</span></span> <span class="line" id="L8"><span class="tok-comment">//! implemented, in accordance with the draft. It may not be updated if new</span></span> <span class="line" id="L9"><span class="tok-comment">//! versions of the draft only include editorial changes.</span></span> <span class="line" id="L10"><span class="tok-comment">//!</span></span> <span class="line" id="L11"><span class="tok-comment">//! The suffix will eventually be removed once Kyber is finalized.</span></span> <span class="line" id="L12"><span class="tok-comment">//!</span></span> <span class="line" id="L13"><span class="tok-comment">//! Quoting from the CFRG I-D:</span></span> <span class="line" id="L14"><span class="tok-comment">//!</span></span> <span class="line" id="L15"><span class="tok-comment">//! Kyber is not a Diffie-Hellman (DH) style non-interactive key</span></span> <span class="line" id="L16"><span class="tok-comment">//! agreement, but instead, Kyber is a Key Encapsulation Method (KEM).</span></span> <span class="line" id="L17"><span class="tok-comment">//! In essence, a KEM is a Public-Key Encryption (PKE) scheme where the</span></span> <span class="line" id="L18"><span class="tok-comment">//! plaintext cannot be specified, but is generated as a random key as</span></span> <span class="line" id="L19"><span class="tok-comment">//! part of the encryption. A KEM can be transformed into an unrestricted</span></span> <span class="line" id="L20"><span class="tok-comment">//! PKE using HPKE (RFC9180). On its own, a KEM can be used as a key</span></span> <span class="line" id="L21"><span class="tok-comment">//! agreement method in TLS.</span></span> <span class="line" id="L22"><span class="tok-comment">//!</span></span> <span class="line" id="L23"><span class="tok-comment">//! Kyber is an IND-CCA2 secure KEM. It is constructed by applying a</span></span> <span class="line" id="L24"><span class="tok-comment">//! Fujisaki--Okamato style transformation on InnerPKE, which is the</span></span> <span class="line" id="L25"><span class="tok-comment">//! underlying IND-CPA secure Public Key Encryption scheme. We cannot</span></span> <span class="line" id="L26"><span class="tok-comment">//! use InnerPKE directly, as its ciphertexts are malleable.</span></span> <span class="line" id="L27"><span class="tok-comment">//!</span></span> <span class="line" id="L28"><span class="tok-comment">//! ```</span></span> <span class="line" id="L29"><span class="tok-comment">//! F.O. transform</span></span> <span class="line" id="L30"><span class="tok-comment">//! InnerPKE ----------------------> Kyber</span></span> <span class="line" id="L31"><span class="tok-comment">//! IND-CPA IND-CCA2</span></span> <span class="line" id="L32"><span class="tok-comment">//! ```</span></span> <span class="line" id="L33"><span class="tok-comment">//!</span></span> <span class="line" id="L34"><span class="tok-comment">//! Kyber is a lattice-based scheme. More precisely, its security is</span></span> <span class="line" id="L35"><span class="tok-comment">//! based on the learning-with-errors-and-rounding problem in module</span></span> <span class="line" id="L36"><span class="tok-comment">//! lattices (MLWER). The underlying polynomial ring R (defined in</span></span> <span class="line" id="L37"><span class="tok-comment">//! Section 5) is chosen such that multiplication is very fast using the</span></span> <span class="line" id="L38"><span class="tok-comment">//! number theoretic transform (NTT, see Section 5.1.3).</span></span> <span class="line" id="L39"><span class="tok-comment">//!</span></span> <span class="line" id="L40"><span class="tok-comment">//! An InnerPKE private key is a vector _s_ over R of length k which is</span></span> <span class="line" id="L41"><span class="tok-comment">//! _small_ in a particular way. Here k is a security parameter akin to</span></span> <span class="line" id="L42"><span class="tok-comment">//! the size of a prime modulus. For Kyber512, which targets AES-128's</span></span> <span class="line" id="L43"><span class="tok-comment">//! security level, the value of k is 2.</span></span> <span class="line" id="L44"><span class="tok-comment">//!</span></span> <span class="line" id="L45"><span class="tok-comment">//! The public key consists of two values:</span></span> <span class="line" id="L46"><span class="tok-comment">//!</span></span> <span class="line" id="L47"><span class="tok-comment">//! * _A_ a uniformly sampled k by k matrix over R _and_</span></span> <span class="line" id="L48"><span class="tok-comment">//!</span></span> <span class="line" id="L49"><span class="tok-comment">//! * _t = A s + e_, where e is a suitably small masking vector.</span></span> <span class="line" id="L50"><span class="tok-comment">//!</span></span> <span class="line" id="L51"><span class="tok-comment">//! Distinguishing between such A s + e and a uniformly sampled t is the</span></span> <span class="line" id="L52"><span class="tok-comment">//! module learning-with-errors (MLWE) problem. If that is hard, then it</span></span> <span class="line" id="L53"><span class="tok-comment">//! is also hard to recover the private key from the public key as that</span></span> <span class="line" id="L54"><span class="tok-comment">//! would allow you to distinguish between those two.</span></span> <span class="line" id="L55"><span class="tok-comment">//!</span></span> <span class="line" id="L56"><span class="tok-comment">//! To save space in the public key, A is recomputed deterministically</span></span> <span class="line" id="L57"><span class="tok-comment">//! from a seed _rho_.</span></span> <span class="line" id="L58"><span class="tok-comment">//!</span></span> <span class="line" id="L59"><span class="tok-comment">//! A ciphertext for a message m under this public key is a pair (c_1,</span></span> <span class="line" id="L60"><span class="tok-comment">//! c_2) computed roughly as follows:</span></span> <span class="line" id="L61"><span class="tok-comment">//!</span></span> <span class="line" id="L62"><span class="tok-comment">//! c_1 = Compress(A^T r + e_1, d_u)</span></span> <span class="line" id="L63"><span class="tok-comment">//! c_2 = Compress(t^T r + e_2 + Decompress(m, 1), d_v)</span></span> <span class="line" id="L64"><span class="tok-comment">//!</span></span> <span class="line" id="L65"><span class="tok-comment">//! where</span></span> <span class="line" id="L66"><span class="tok-comment">//!</span></span> <span class="line" id="L67"><span class="tok-comment">//! * e_1, e_2 and r are small blinds;</span></span> <span class="line" id="L68"><span class="tok-comment">//!</span></span> <span class="line" id="L69"><span class="tok-comment">//! * Compress(-, d) removes some information, leaving d bits per</span></span> <span class="line" id="L70"><span class="tok-comment">//! coefficient and Decompress is such that Compress after Decompress</span></span> <span class="line" id="L71"><span class="tok-comment">//! does nothing and</span></span> <span class="line" id="L72"><span class="tok-comment">//!</span></span> <span class="line" id="L73"><span class="tok-comment">//! * d_u, d_v are scheme parameters.</span></span> <span class="line" id="L74"><span class="tok-comment">//!</span></span> <span class="line" id="L75"><span class="tok-comment">//! Distinguishing such a ciphertext and uniformly sampled (c_1, c_2) is</span></span> <span class="line" id="L76"><span class="tok-comment">//! an example of the full MLWER problem, see section 4.4 of [KyberV302].</span></span> <span class="line" id="L77"><span class="tok-comment">//!</span></span> <span class="line" id="L78"><span class="tok-comment">//! To decrypt the ciphertext, one computes</span></span> <span class="line" id="L79"><span class="tok-comment">//!</span></span> <span class="line" id="L80"><span class="tok-comment">//! m = Compress(Decompress(c_2, d_v) - s^T Decompress(c_1, d_u), 1).</span></span> <span class="line" id="L81"><span class="tok-comment">//!</span></span> <span class="line" id="L82"><span class="tok-comment">//! It it not straight-forward to see that this formula is correct. In</span></span> <span class="line" id="L83"><span class="tok-comment">//! fact, there is negligible but non-zero probability that a ciphertext</span></span> <span class="line" id="L84"><span class="tok-comment">//! does not decrypt correctly given by the DFP column in Table 4. This</span></span> <span class="line" id="L85"><span class="tok-comment">//! failure probability can be computed by a careful automated analysis</span></span> <span class="line" id="L86"><span class="tok-comment">//! of the probabilities involved, see kyber_failure.py of [SecEst].</span></span> <span class="line" id="L87"><span class="tok-comment">//!</span></span> <span class="line" id="L88"><span class="tok-comment">//! [KyberV302](https://pq-crystals.org/kyber/data/kyber-specification-round3-20210804.pdf)</span></span> <span class="line" id="L89"><span class="tok-comment">//! [I-D](https://github.com/bwesterb/draft-schwabe-cfrg-kyber)</span></span> <span class="line" id="L90"><span class="tok-comment">//! [SecEst](https://github.com/pq-crystals/security-estimates)</span></span> <span class="line" id="L91"></span> <span class="line" id="L92"><span class="tok-comment">// TODO</span> </span> <span class="line" id="L93"><span class="tok-comment">//</span> </span> <span class="line" id="L94"><span class="tok-comment">// - The bottleneck in Kyber are the various hash/xof calls:</span> </span> <span class="line" id="L95"><span class="tok-comment">// - Optimize Zig's keccak implementation.</span> </span> <span class="line" id="L96"><span class="tok-comment">// - Use SIMD to compute keccak in parallel.</span> </span> <span class="line" id="L97"><span class="tok-comment">// - Can we track bounds of coefficients using comptime types without</span> </span> <span class="line" id="L98"><span class="tok-comment">// duplicating code?</span> </span> <span class="line" id="L99"><span class="tok-comment">// - Would be neater to have tests closer to the thing under test.</span> </span> <span class="line" id="L100"><span class="tok-comment">// - When generating a keypair, we have a copy of the inner public key with</span> </span> <span class="line" id="L101"><span class="tok-comment">// its large matrix A in both the public key and the private key. In Go we</span> </span> <span class="line" id="L102"><span class="tok-comment">// can just have a pointer in the private key to the public key, but</span> </span> <span class="line" id="L103"><span class="tok-comment">// how do we do this elegantly in Zig?</span> </span> <span class="line" id="L104"></span> <span class="line" id="L105"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L106"><span class="tok-kw">const</span> builtin = <span class="tok-builtin">@import</span>(<span class="tok-str">"builtin"</span>);</span> <span class="line" id="L107"></span> <span class="line" id="L108"><span class="tok-kw">const</span> testing = std.testing;</span> <span class="line" id="L109"><span class="tok-kw">const</span> assert = std.debug.assert;</span> <span class="line" id="L110"><span class="tok-kw">const</span> crypto = std.crypto;</span> <span class="line" id="L111"><span class="tok-kw">const</span> math = std.math;</span> <span class="line" id="L112"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L113"><span class="tok-kw">const</span> RndGen = std.rand.DefaultPrng;</span> <span class="line" id="L114"><span class="tok-kw">const</span> sha3 = crypto.hash.sha3;</span> <span class="line" id="L115"></span> <span class="line" id="L116"><span class="tok-comment">// Q is the parameter q ≡ 3329 = 2¹¹ + 2¹⁰ + 2⁸ + 1.</span> </span> <span class="line" id="L117"><span class="tok-kw">const</span> Q: <span class="tok-type">i16</span> = <span class="tok-number">3329</span>;</span> <span class="line" id="L118"></span> <span class="line" id="L119"><span class="tok-comment">// Montgomery R</span> </span> <span class="line" id="L120"><span class="tok-kw">const</span> R: <span class="tok-type">i32</span> = <span class="tok-number">1</span> << <span class="tok-number">16</span>;</span> <span class="line" id="L121"></span> <span class="line" id="L122"><span class="tok-comment">// Parameter n, degree of polynomials.</span> </span> <span class="line" id="L123"><span class="tok-kw">const</span> N: <span class="tok-type">usize</span> = <span class="tok-number">256</span>;</span> <span class="line" id="L124"></span> <span class="line" id="L125"><span class="tok-comment">// Size of "small" vectors used in encryption blinds.</span> </span> <span class="line" id="L126"><span class="tok-kw">const</span> eta2: <span class="tok-type">u8</span> = <span class="tok-number">2</span>;</span> <span class="line" id="L127"></span> <span class="line" id="L128"><span class="tok-kw">const</span> Params = <span class="tok-kw">struct</span> {</span> <span class="line" id="L129"> name: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L130"></span> <span class="line" id="L131"> <span class="tok-comment">// Width and height of the matrix A.</span> </span> <span class="line" id="L132"> k: <span class="tok-type">u8</span>,</span> <span class="line" id="L133"></span> <span class="line" id="L134"> <span class="tok-comment">// Size of "small" vectors used in private key and encryption blinds.</span> </span> <span class="line" id="L135"> eta1: <span class="tok-type">u8</span>,</span> <span class="line" id="L136"></span> <span class="line" id="L137"> <span class="tok-comment">// How many bits to retain of u, the private-key independent part</span> </span> <span class="line" id="L138"> <span class="tok-comment">// of the ciphertext.</span> </span> <span class="line" id="L139"> du: <span class="tok-type">u8</span>,</span> <span class="line" id="L140"></span> <span class="line" id="L141"> <span class="tok-comment">// How many bits to retain of v, the private-key dependent part</span> </span> <span class="line" id="L142"> <span class="tok-comment">// of the ciphertext.</span> </span> <span class="line" id="L143"> dv: <span class="tok-type">u8</span>,</span> <span class="line" id="L144">};</span> <span class="line" id="L145"></span> <span class="line" id="L146"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Kyber512 = Kyber(.{</span> <span class="line" id="L147"> .name = <span class="tok-str">"Kyber512"</span>,</span> <span class="line" id="L148"> .k = <span class="tok-number">2</span>,</span> <span class="line" id="L149"> .eta1 = <span class="tok-number">3</span>,</span> <span class="line" id="L150"> .du = <span class="tok-number">10</span>,</span> <span class="line" id="L151"> .dv = <span class="tok-number">4</span>,</span> <span class="line" id="L152">});</span> <span class="line" id="L153"></span> <span class="line" id="L154"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Kyber768 = Kyber(.{</span> <span class="line" id="L155"> .name = <span class="tok-str">"Kyber768"</span>,</span> <span class="line" id="L156"> .k = <span class="tok-number">3</span>,</span> <span class="line" id="L157"> .eta1 = <span class="tok-number">2</span>,</span> <span class="line" id="L158"> .du = <span class="tok-number">10</span>,</span> <span class="line" id="L159"> .dv = <span class="tok-number">4</span>,</span> <span class="line" id="L160">});</span> <span class="line" id="L161"></span> <span class="line" id="L162"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Kyber1024 = Kyber(.{</span> <span class="line" id="L163"> .name = <span class="tok-str">"Kyber1024"</span>,</span> <span class="line" id="L164"> .k = <span class="tok-number">4</span>,</span> <span class="line" id="L165"> .eta1 = <span class="tok-number">2</span>,</span> <span class="line" id="L166"> .du = <span class="tok-number">11</span>,</span> <span class="line" id="L167"> .dv = <span class="tok-number">5</span>,</span> <span class="line" id="L168">});</span> <span class="line" id="L169"></span> <span class="line" id="L170"><span class="tok-kw">const</span> modes = [_]<span class="tok-type">type</span>{ Kyber512, Kyber768, Kyber1024 };</span> <span class="line" id="L171"><span class="tok-kw">const</span> h_length: <span class="tok-type">usize</span> = <span class="tok-number">32</span>;</span> <span class="line" id="L172"><span class="tok-kw">const</span> inner_seed_length: <span class="tok-type">usize</span> = <span class="tok-number">32</span>;</span> <span class="line" id="L173"><span class="tok-kw">const</span> common_encaps_seed_length: <span class="tok-type">usize</span> = <span class="tok-number">32</span>;</span> <span class="line" id="L174"><span class="tok-kw">const</span> common_shared_key_size: <span class="tok-type">usize</span> = <span class="tok-number">32</span>;</span> <span class="line" id="L175"></span> <span class="line" id="L176"><span class="tok-kw">fn</span> <span class="tok-fn">Kyber</span>(<span class="tok-kw">comptime</span> p: Params) <span class="tok-type">type</span> {</span> <span class="line" id="L177"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L178"> <span class="tok-comment">// Size of a ciphertext, in bytes.</span> </span> <span class="line" id="L179"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> ciphertext_length = Poly.compressedSize(p.du) * p.k + Poly.compressedSize(p.dv);</span> <span class="line" id="L180"></span> <span class="line" id="L181"> <span class="tok-kw">const</span> Self = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L182"> <span class="tok-kw">const</span> V = Vec(p.k);</span> <span class="line" id="L183"> <span class="tok-kw">const</span> M = Mat(p.k);</span> <span class="line" id="L184"></span> <span class="line" id="L185"> <span class="tok-comment">/// Length (in bytes) of a shared secret.</span></span> <span class="line" id="L186"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> shared_length = common_shared_key_size;</span> <span class="line" id="L187"> <span class="tok-comment">/// Length (in bytes) of a seed for deterministic encapsulation.</span></span> <span class="line" id="L188"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> encaps_seed_length = common_encaps_seed_length;</span> <span class="line" id="L189"> <span class="tok-comment">/// Length (in bytes) of a seed for key generation.</span></span> <span class="line" id="L190"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> seed_length: <span class="tok-type">usize</span> = inner_seed_length + shared_length;</span> <span class="line" id="L191"> <span class="tok-comment">/// Algorithm name.</span></span> <span class="line" id="L192"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> name = p.name;</span> <span class="line" id="L193"></span> <span class="line" id="L194"> <span class="tok-comment">/// A shared secret, and an encapsulated (encrypted) representation of it.</span></span> <span class="line" id="L195"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> EncapsulatedSecret = <span class="tok-kw">struct</span> {</span> <span class="line" id="L196"> shared_secret: [shared_length]<span class="tok-type">u8</span>,</span> <span class="line" id="L197"> ciphertext: [ciphertext_length]<span class="tok-type">u8</span>,</span> <span class="line" id="L198"> };</span> <span class="line" id="L199"></span> <span class="line" id="L200"> <span class="tok-comment">/// A Kyber public key.</span></span> <span class="line" id="L201"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> PublicKey = <span class="tok-kw">struct</span> {</span> <span class="line" id="L202"> pk: InnerPk,</span> <span class="line" id="L203"></span> <span class="line" id="L204"> <span class="tok-comment">// Cached</span> </span> <span class="line" id="L205"> hpk: [h_length]<span class="tok-type">u8</span>, <span class="tok-comment">// H(pk)</span> </span> <span class="line" id="L206"></span> <span class="line" id="L207"> <span class="tok-comment">/// Size of a serialized representation of the key, in bytes.</span></span> <span class="line" id="L208"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> bytes_length = InnerPk.bytes_length;</span> <span class="line" id="L209"></span> <span class="line" id="L210"> <span class="tok-comment">/// Generates a shared secret, and encapsulates it for the public key.</span></span> <span class="line" id="L211"> <span class="tok-comment">/// If `seed` is `null`, a random seed is used. This is recommended.</span></span> <span class="line" id="L212"> <span class="tok-comment">/// If `seed` is set, encapsulation is deterministic.</span></span> <span class="line" id="L213"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">encaps</span>(pk: PublicKey, seed_: ?[encaps_seed_length]<span class="tok-type">u8</span>) EncapsulatedSecret {</span> <span class="line" id="L214"> <span class="tok-kw">const</span> seed = seed_ <span class="tok-kw">orelse</span> seed: {</span> <span class="line" id="L215"> <span class="tok-kw">var</span> random_seed: [encaps_seed_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L216"> crypto.random.bytes(&random_seed);</span> <span class="line" id="L217"> <span class="tok-kw">break</span> :seed random_seed;</span> <span class="line" id="L218"> };</span> <span class="line" id="L219"></span> <span class="line" id="L220"> <span class="tok-kw">var</span> m: [inner_plaintext_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L221"></span> <span class="line" id="L222"> <span class="tok-comment">// m = H(seed)</span> </span> <span class="line" id="L223"> <span class="tok-kw">var</span> h = sha3.Sha3_256.init(.{});</span> <span class="line" id="L224"> h.update(&seed);</span> <span class="line" id="L225"> h.final(&m);</span> <span class="line" id="L226"></span> <span class="line" id="L227"> <span class="tok-comment">// (K', r) = G(m ‖ H(pk))</span> </span> <span class="line" id="L228"> <span class="tok-kw">var</span> kr: [inner_plaintext_length + h_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L229"> <span class="tok-kw">var</span> g = sha3.Sha3_512.init(.{});</span> <span class="line" id="L230"> g.update(&m);</span> <span class="line" id="L231"> g.update(&pk.hpk);</span> <span class="line" id="L232"> g.final(&kr);</span> <span class="line" id="L233"></span> <span class="line" id="L234"> <span class="tok-comment">// c = innerEncrypy(pk, m, r)</span> </span> <span class="line" id="L235"> <span class="tok-kw">const</span> ct = pk.pk.encrypt(&m, kr[<span class="tok-number">32</span>..<span class="tok-number">64</span>]);</span> <span class="line" id="L236"></span> <span class="line" id="L237"> <span class="tok-comment">// Compute H(c) and put in second slot of kr, which will be (K', H(c)).</span> </span> <span class="line" id="L238"> h = sha3.Sha3_256.init(.{});</span> <span class="line" id="L239"> h.update(&ct);</span> <span class="line" id="L240"> h.final(kr[<span class="tok-number">32</span>..<span class="tok-number">64</span>]);</span> <span class="line" id="L241"></span> <span class="line" id="L242"> <span class="tok-comment">// K = KDF(K' ‖ H(c))</span> </span> <span class="line" id="L243"> <span class="tok-kw">var</span> kdf = sha3.Shake256.init(.{});</span> <span class="line" id="L244"> kdf.update(&kr);</span> <span class="line" id="L245"> <span class="tok-kw">var</span> ss: [shared_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L246"> kdf.squeeze(&ss);</span> <span class="line" id="L247"></span> <span class="line" id="L248"> <span class="tok-kw">return</span> EncapsulatedSecret{</span> <span class="line" id="L249"> .shared_secret = ss,</span> <span class="line" id="L250"> .ciphertext = ct,</span> <span class="line" id="L251"> };</span> <span class="line" id="L252"> }</span> <span class="line" id="L253"></span> <span class="line" id="L254"> <span class="tok-comment">/// Serializes the key into a byte array.</span></span> <span class="line" id="L255"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toBytes</span>(pk: PublicKey) [bytes_length]<span class="tok-type">u8</span> {</span> <span class="line" id="L256"> <span class="tok-kw">return</span> pk.pk.toBytes();</span> <span class="line" id="L257"> }</span> <span class="line" id="L258"></span> <span class="line" id="L259"> <span class="tok-comment">/// Deserializes the key from a byte array.</span></span> <span class="line" id="L260"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromBytes</span>(buf: <span class="tok-kw">const</span> [bytes_length]<span class="tok-type">u8</span>) !PublicKey {</span> <span class="line" id="L261"> <span class="tok-kw">var</span> ret: PublicKey = <span class="tok-null">undefined</span>;</span> <span class="line" id="L262"> ret.pk = InnerPk.fromBytes(buf[<span class="tok-number">0</span>..InnerPk.bytes_length]);</span> <span class="line" id="L263"></span> <span class="line" id="L264"> <span class="tok-kw">var</span> h = sha3.Sha3_256.init(.{});</span> <span class="line" id="L265"> h.update(buf);</span> <span class="line" id="L266"> h.final(&ret.hpk);</span> <span class="line" id="L267"> <span class="tok-kw">return</span> ret;</span> <span class="line" id="L268"> }</span> <span class="line" id="L269"> };</span> <span class="line" id="L270"></span> <span class="line" id="L271"> <span class="tok-comment">/// A Kyber secret key.</span></span> <span class="line" id="L272"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> SecretKey = <span class="tok-kw">struct</span> {</span> <span class="line" id="L273"> sk: InnerSk,</span> <span class="line" id="L274"> pk: InnerPk,</span> <span class="line" id="L275"> hpk: [h_length]<span class="tok-type">u8</span>, <span class="tok-comment">// H(pk)</span> </span> <span class="line" id="L276"> z: [shared_length]<span class="tok-type">u8</span>,</span> <span class="line" id="L277"></span> <span class="line" id="L278"> <span class="tok-comment">/// Size of a serialized representation of the key, in bytes.</span></span> <span class="line" id="L279"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> bytes_length: <span class="tok-type">usize</span> =</span> <span class="line" id="L280"> InnerSk.bytes_length + InnerPk.bytes_length + h_length + shared_length;</span> <span class="line" id="L281"></span> <span class="line" id="L282"> <span class="tok-comment">/// Decapsulates the shared secret within ct using the private key.</span></span> <span class="line" id="L283"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">decaps</span>(sk: SecretKey, ct: <span class="tok-kw">const</span> [ciphertext_length]<span class="tok-type">u8</span>) ![shared_length]<span class="tok-type">u8</span> {</span> <span class="line" id="L284"> <span class="tok-comment">// m' = innerDec(ct)</span> </span> <span class="line" id="L285"> <span class="tok-kw">const</span> m2 = sk.sk.decrypt(ct);</span> <span class="line" id="L286"></span> <span class="line" id="L287"> <span class="tok-comment">// (K'', r') = G(m' ‖ H(pk))</span> </span> <span class="line" id="L288"> <span class="tok-kw">var</span> kr2: [<span class="tok-number">64</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L289"> <span class="tok-kw">var</span> g = sha3.Sha3_512.init(.{});</span> <span class="line" id="L290"> g.update(&m2);</span> <span class="line" id="L291"> g.update(&sk.hpk);</span> <span class="line" id="L292"> g.final(&kr2);</span> <span class="line" id="L293"></span> <span class="line" id="L294"> <span class="tok-comment">// ct' = innerEnc(pk, m', r')</span> </span> <span class="line" id="L295"> <span class="tok-kw">const</span> ct2 = sk.pk.encrypt(&m2, kr2[<span class="tok-number">32</span>..<span class="tok-number">64</span>]);</span> <span class="line" id="L296"></span> <span class="line" id="L297"> <span class="tok-comment">// Compute H(ct) and put in the second slot of kr2 which will be (K'', H(ct)).</span> </span> <span class="line" id="L298"> <span class="tok-kw">var</span> h = sha3.Sha3_256.init(.{});</span> <span class="line" id="L299"> h.update(ct);</span> <span class="line" id="L300"> h.final(kr2[<span class="tok-number">32</span>..<span class="tok-number">64</span>]);</span> <span class="line" id="L301"></span> <span class="line" id="L302"> <span class="tok-comment">// Replace K'' by z in the first slot of kr2 if ct ≠ ct'.</span> </span> <span class="line" id="L303"> cmov(<span class="tok-number">32</span>, kr2[<span class="tok-number">0</span>..<span class="tok-number">32</span>], sk.z, ctneq(ciphertext_length, ct., ct2));</span> <span class="line" id="L304"></span> <span class="line" id="L305"> <span class="tok-comment">// K = KDF(K''/z, H(c))</span> </span> <span class="line" id="L306"> <span class="tok-kw">var</span> kdf = sha3.Shake256.init(.{});</span> <span class="line" id="L307"> <span class="tok-kw">var</span> ss: [shared_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L308"> kdf.update(&kr2);</span> <span class="line" id="L309"> kdf.squeeze(&ss);</span> <span class="line" id="L310"> <span class="tok-kw">return</span> ss;</span> <span class="line" id="L311"> }</span> <span class="line" id="L312"></span> <span class="line" id="L313"> <span class="tok-comment">/// Serializes the key into a byte array.</span></span> <span class="line" id="L314"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toBytes</span>(sk: SecretKey) [bytes_length]<span class="tok-type">u8</span> {</span> <span class="line" id="L315"> <span class="tok-kw">return</span> sk.sk.toBytes() ++ sk.pk.toBytes() ++ sk.hpk ++ sk.z;</span> <span class="line" id="L316"> }</span> <span class="line" id="L317"></span> <span class="line" id="L318"> <span class="tok-comment">/// Deserializes the key from a byte array.</span></span> <span class="line" id="L319"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromBytes</span>(buf: <span class="tok-kw">const</span> [bytes_length]<span class="tok-type">u8</span>) !SecretKey {</span> <span class="line" id="L320"> <span class="tok-kw">var</span> ret: SecretKey = <span class="tok-null">undefined</span>;</span> <span class="line" id="L321"> <span class="tok-kw">comptime</span> <span class="tok-kw">var</span> s: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L322"> ret.sk = InnerSk.fromBytes(buf[s .. s + InnerSk.bytes_length]);</span> <span class="line" id="L323"> s += InnerSk.bytes_length;</span> <span class="line" id="L324"> ret.pk = InnerPk.fromBytes(buf[s .. s + InnerPk.bytes_length]);</span> <span class="line" id="L325"> s += InnerPk.bytes_length;</span> <span class="line" id="L326"> ret.hpk = buf[s..][<span class="tok-number">0</span>..h_length].;</span> <span class="line" id="L327"> s += h_length;</span> <span class="line" id="L328"> ret.z = buf[s..][<span class="tok-number">0</span>..shared_length].;</span> <span class="line" id="L329"> <span class="tok-kw">return</span> ret;</span> <span class="line" id="L330"> }</span> <span class="line" id="L331"> };</span> <span class="line" id="L332"></span> <span class="line" id="L333"> <span class="tok-comment">/// A Kyber key pair.</span></span> <span class="line" id="L334"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> KeyPair = <span class="tok-kw">struct</span> {</span> <span class="line" id="L335"> secret_key: SecretKey,</span> <span class="line" id="L336"> public_key: PublicKey,</span> <span class="line" id="L337"></span> <span class="line" id="L338"> <span class="tok-comment">/// Create a new key pair.</span></span> <span class="line" id="L339"> <span class="tok-comment">/// If seed is null, a random seed will be generated.</span></span> <span class="line" id="L340"> <span class="tok-comment">/// If a seed is provided, the key pair will be determinsitic.</span></span> <span class="line" id="L341"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">create</span>(seed_: ?[seed_length]<span class="tok-type">u8</span>) !KeyPair {</span> <span class="line" id="L342"> <span class="tok-kw">const</span> seed = seed_ <span class="tok-kw">orelse</span> sk: {</span> <span class="line" id="L343"> <span class="tok-kw">var</span> random_seed: [seed_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L344"> crypto.random.bytes(&random_seed);</span> <span class="line" id="L345"> <span class="tok-kw">break</span> :sk random_seed;</span> <span class="line" id="L346"> };</span> <span class="line" id="L347"> <span class="tok-kw">var</span> ret: KeyPair = <span class="tok-null">undefined</span>;</span> <span class="line" id="L348"> ret.secret_key.z = seed[inner_seed_length..seed_length].;</span> <span class="line" id="L349"></span> <span class="line" id="L350"> <span class="tok-comment">// Generate inner key</span> </span> <span class="line" id="L351"> innerKeyFromSeed(</span> <span class="line" id="L352"> seed[<span class="tok-number">0</span>..inner_seed_length].,</span> <span class="line" id="L353"> &ret.public_key.pk,</span> <span class="line" id="L354"> &ret.secret_key.sk,</span> <span class="line" id="L355"> );</span> <span class="line" id="L356"> ret.secret_key.pk = ret.public_key.pk;</span> <span class="line" id="L357"></span> <span class="line" id="L358"> <span class="tok-comment">// Copy over z from seed.</span> </span> <span class="line" id="L359"> ret.secret_key.z = seed[inner_seed_length..seed_length].;</span> <span class="line" id="L360"></span> <span class="line" id="L361"> <span class="tok-comment">// Compute H(pk)</span> </span> <span class="line" id="L362"> <span class="tok-kw">var</span> h = sha3.Sha3_256.init(.{});</span> <span class="line" id="L363"> h.update(&ret.public_key.pk.toBytes());</span> <span class="line" id="L364"> h.final(&ret.secret_key.hpk);</span> <span class="line" id="L365"> ret.public_key.hpk = ret.secret_key.hpk;</span> <span class="line" id="L366"></span> <span class="line" id="L367"> <span class="tok-kw">return</span> ret;</span> <span class="line" id="L368"> }</span> <span class="line" id="L369"> };</span> <span class="line" id="L370"></span> <span class="line" id="L371"> <span class="tok-comment">// Size of plaintexts of the in</span> </span> <span class="line" id="L372"> <span class="tok-kw">const</span> inner_plaintext_length: <span class="tok-type">usize</span> = Poly.compressedSize(<span class="tok-number">1</span>);</span> <span class="line" id="L373"></span> <span class="line" id="L374"> <span class="tok-kw">const</span> InnerPk = <span class="tok-kw">struct</span> {</span> <span class="line" id="L375"> rho: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>, <span class="tok-comment">// ρ, the seed for the matrix A</span> </span> <span class="line" id="L376"> th: V, <span class="tok-comment">// NTT(t), normalized</span> </span> <span class="line" id="L377"></span> <span class="line" id="L378"> <span class="tok-comment">// Cached values</span> </span> <span class="line" id="L379"> aT: M,</span> <span class="line" id="L380"></span> <span class="line" id="L381"> <span class="tok-kw">const</span> bytes_length = V.bytes_length + <span class="tok-number">32</span>;</span> <span class="line" id="L382"></span> <span class="line" id="L383"> <span class="tok-kw">fn</span> <span class="tok-fn">encrypt</span>(</span> <span class="line" id="L384"> pk: InnerPk,</span> <span class="line" id="L385"> pt: <span class="tok-kw">const</span> [inner_plaintext_length]<span class="tok-type">u8</span>,</span> <span class="line" id="L386"> seed: <span class="tok-kw">const</span> [<span class="tok-number">32</span>]<span class="tok-type">u8</span>,</span> <span class="line" id="L387"> ) [ciphertext_length]<span class="tok-type">u8</span> {</span> <span class="line" id="L388"> <span class="tok-comment">// Sample r, e₁ and e₂ appropriately</span> </span> <span class="line" id="L389"> <span class="tok-kw">const</span> rh = V.noise(p.eta1, <span class="tok-number">0</span>, seed).ntt().barrettReduce();</span> <span class="line" id="L390"> <span class="tok-kw">const</span> e1 = V.noise(eta2, p.k, seed);</span> <span class="line" id="L391"> <span class="tok-kw">const</span> e2 = Poly.noise(eta2, <span class="tok-number">2</span> p.k, seed);</span> <span class="line" id="L392"></span> <span class="line" id="L393"> <span class="tok-comment">// Next we compute u = Aᵀ r + e₁. First Aᵀ.</span> </span> <span class="line" id="L394"> <span class="tok-kw">var</span> u: V = <span class="tok-null">undefined</span>;</span> <span class="line" id="L395"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..p.k) \|i\| {</span> <span class="line" id="L396"> <span class="tok-comment">// Note that coefficients of r are bounded by q and those of Aᵀ</span> </span> <span class="line" id="L397"> <span class="tok-comment">// are bounded by 4.5q and so their product is bounded by 2¹⁵q</span> </span> <span class="line" id="L398"> <span class="tok-comment">// as required for multiplication.</span> </span> <span class="line" id="L399"> u.ps[i] = pk.aT.vs[i].dotHat(rh);</span> <span class="line" id="L400"> }</span> <span class="line" id="L401"></span> <span class="line" id="L402"> <span class="tok-comment">// Aᵀ and r were not in Montgomery form, so the Montgomery</span> </span> <span class="line" id="L403"> <span class="tok-comment">// multiplications in the inner product added a factor R⁻¹ which</span> </span> <span class="line" id="L404"> <span class="tok-comment">// the InvNTT cancels out.</span> </span> <span class="line" id="L405"> u = u.barrettReduce().invNTT().add(e1).normalize();</span> <span class="line" id="L406"></span> <span class="line" id="L407"> <span class="tok-comment">// Next, compute v = <t, r> + e₂ + Decompress_q(m, 1)</span> </span> <span class="line" id="L408"> <span class="tok-kw">const</span> v = pk.th.dotHat(rh).barrettReduce().invNTT()</span> <span class="line" id="L409"> .add(Poly.decompress(<span class="tok-number">1</span>, pt)).add(e2).normalize();</span> <span class="line" id="L410"></span> <span class="line" id="L411"> <span class="tok-kw">return</span> u.compress(p.du) ++ v.compress(p.dv);</span> <span class="line" id="L412"> }</span> <span class="line" id="L413"></span> <span class="line" id="L414"> <span class="tok-kw">fn</span> <span class="tok-fn">toBytes</span>(pk: InnerPk) [bytes_length]<span class="tok-type">u8</span> {</span> <span class="line" id="L415"> <span class="tok-kw">return</span> pk.th.toBytes() ++ pk.rho;</span> <span class="line" id="L416"> }</span> <span class="line" id="L417"></span> <span class="line" id="L418"> <span class="tok-kw">fn</span> <span class="tok-fn">fromBytes</span>(buf: <span class="tok-kw">const</span> [bytes_length]<span class="tok-type">u8</span>) InnerPk {</span> <span class="line" id="L419"> <span class="tok-kw">var</span> ret: InnerPk = <span class="tok-null">undefined</span>;</span> <span class="line" id="L420"> ret.th = V.fromBytes(buf[<span class="tok-number">0</span>..V.bytes_length]).normalize();</span> <span class="line" id="L421"> ret.rho = buf[V.bytes_length..bytes_length].;</span> <span class="line" id="L422"> ret.aT = M.uniform(ret.rho, <span class="tok-null">true</span>);</span> <span class="line" id="L423"> <span class="tok-kw">return</span> ret;</span> <span class="line" id="L424"> }</span> <span class="line" id="L425"> };</span> <span class="line" id="L426"></span> <span class="line" id="L427"> <span class="tok-comment">// Private key of the inner PKE</span> </span> <span class="line" id="L428"> <span class="tok-kw">const</span> InnerSk = <span class="tok-kw">struct</span> {</span> <span class="line" id="L429"> sh: V, <span class="tok-comment">// NTT(s), normalized</span> </span> <span class="line" id="L430"> <span class="tok-kw">const</span> bytes_length = V.bytes_length;</span> <span class="line" id="L431"></span> <span class="line" id="L432"> <span class="tok-kw">fn</span> <span class="tok-fn">decrypt</span>(sk: InnerSk, ct: <span class="tok-kw">const</span> [ciphertext_length]<span class="tok-type">u8</span>) [inner_plaintext_length]<span class="tok-type">u8</span> {</span> <span class="line" id="L433"> <span class="tok-kw">const</span> u = V.decompress(p.du, ct[<span class="tok-number">0</span>..<span class="tok-kw">comptime</span> V.compressedSize(p.du)]);</span> <span class="line" id="L434"> <span class="tok-kw">const</span> v = Poly.decompress(</span> <span class="line" id="L435"> p.dv,</span> <span class="line" id="L436"> ct[<span class="tok-kw">comptime</span> V.compressedSize(p.du)..ciphertext_length],</span> <span class="line" id="L437"> );</span> <span class="line" id="L438"></span> <span class="line" id="L439"> <span class="tok-comment">// Compute m = v - <s, u></span> </span> <span class="line" id="L440"> <span class="tok-kw">return</span> v.sub(sk.sh.dotHat(u.ntt()).barrettReduce().invNTT())</span> <span class="line" id="L441"> .normalize().compress(<span class="tok-number">1</span>);</span> <span class="line" id="L442"> }</span> <span class="line" id="L443"></span> <span class="line" id="L444"> <span class="tok-kw">fn</span> <span class="tok-fn">toBytes</span>(sk: InnerSk) [bytes_length]<span class="tok-type">u8</span> {</span> <span class="line" id="L445"> <span class="tok-kw">return</span> sk.sh.toBytes();</span> <span class="line" id="L446"> }</span> <span class="line" id="L447"></span> <span class="line" id="L448"> <span class="tok-kw">fn</span> <span class="tok-fn">fromBytes</span>(buf: <span class="tok-kw">const</span> [bytes_length]<span class="tok-type">u8</span>) InnerSk {</span> <span class="line" id="L449"> <span class="tok-kw">var</span> ret: InnerSk = <span class="tok-null">undefined</span>;</span> <span class="line" id="L450"> ret.sh = V.fromBytes(buf).normalize();</span> <span class="line" id="L451"> <span class="tok-kw">return</span> ret;</span> <span class="line" id="L452"> }</span> <span class="line" id="L453"> };</span> <span class="line" id="L454"></span> <span class="line" id="L455"> <span class="tok-comment">// Derives inner PKE keypair from given seed.</span> </span> <span class="line" id="L456"> <span class="tok-kw">fn</span> <span class="tok-fn">innerKeyFromSeed</span>(seed: [inner_seed_length]<span class="tok-type">u8</span>, pk: InnerPk, sk: InnerSk) <span class="tok-type">void</span> {</span> <span class="line" id="L457"> <span class="tok-kw">var</span> expanded_seed: [<span class="tok-number">64</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L458"></span> <span class="line" id="L459"> <span class="tok-kw">var</span> h = sha3.Sha3_512.init(.{});</span> <span class="line" id="L460"> h.update(&seed);</span> <span class="line" id="L461"> h.final(&expanded_seed);</span> <span class="line" id="L462"> pk.rho = expanded_seed[<span class="tok-number">0</span>..<span class="tok-number">32</span>].;</span> <span class="line" id="L463"> <span class="tok-kw">const</span> sigma = expanded_seed[<span class="tok-number">32</span>..<span class="tok-number">64</span>];</span> <span class="line" id="L464"> pk.aT = M.uniform(pk.rho, <span class="tok-null">false</span>); <span class="tok-comment">// Expand ρ to A; we'll transpose later on</span> </span> <span class="line" id="L465"></span> <span class="line" id="L466"> <span class="tok-comment">// Sample secret vector s.</span> </span> <span class="line" id="L467"> sk.sh = V.noise(p.eta1, <span class="tok-number">0</span>, sigma).ntt().normalize();</span> <span class="line" id="L468"></span> <span class="line" id="L469"> <span class="tok-kw">const</span> eh = Vec(p.k).noise(p.eta1, p.k, sigma).ntt(); <span class="tok-comment">// sample blind e.</span> </span> <span class="line" id="L470"> <span class="tok-kw">var</span> th: V = <span class="tok-null">undefined</span>;</span> <span class="line" id="L471"></span> <span class="line" id="L472"> <span class="tok-comment">// Next, we compute t = A s + e.</span> </span> <span class="line" id="L473"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..p.k) \|i\| {</span> <span class="line" id="L474"> <span class="tok-comment">// Note that coefficients of s are bounded by q and those of A</span> </span> <span class="line" id="L475"> <span class="tok-comment">// are bounded by 4.5q and so their product is bounded by 2¹⁵q</span> </span> <span class="line" id="L476"> <span class="tok-comment">// as required for multiplication.</span> </span> <span class="line" id="L477"> <span class="tok-comment">// A and s were not in Montgomery form, so the Montgomery</span> </span> <span class="line" id="L478"> <span class="tok-comment">// multiplications in the inner product added a factor R⁻¹ which</span> </span> <span class="line" id="L479"> <span class="tok-comment">// we'll cancel out with toMont(). This will also ensure the</span> </span> <span class="line" id="L480"> <span class="tok-comment">// coefficients of th are bounded in absolute value by q.</span> </span> <span class="line" id="L481"> th.ps[i] = pk.aT.vs[i].dotHat(sk.sh).toMont();</span> <span class="line" id="L482"> }</span> <span class="line" id="L483"></span> <span class="line" id="L484"> pk.th = th.add(eh).normalize(); <span class="tok-comment">// bounded by 8q</span> </span> <span class="line" id="L485"> pk.aT = pk.aT.transpose();</span> <span class="line" id="L486"> }</span> <span class="line" id="L487"> };</span> <span class="line" id="L488">}</span> <span class="line" id="L489"></span> <span class="line" id="L490"><span class="tok-comment">// R mod q</span> </span> <span class="line" id="L491"><span class="tok-kw">const</span> r_mod_q: <span class="tok-type">i32</span> = <span class="tok-builtin">@rem</span>(<span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, R), Q);</span> <span class="line" id="L492"></span> <span class="line" id="L493"><span class="tok-comment">// R² mod q</span> </span> <span class="line" id="L494"><span class="tok-kw">const</span> r2_mod_q: <span class="tok-type">i32</span> = <span class="tok-builtin">@rem</span>(r_mod_q r_mod_q, Q);</span> <span class="line" id="L495"></span> <span class="line" id="L496"><span class="tok-comment">// ζ is the degree 256 primitive root of unity used for the NTT.</span> </span> <span class="line" id="L497"><span class="tok-kw">const</span> zeta: <span class="tok-type">i16</span> = <span class="tok-number">17</span>;</span> <span class="line" id="L498"></span> <span class="line" id="L499"><span class="tok-comment">// (128)⁻¹ R². Used in inverse NTT.</span> </span> <span class="line" id="L500"><span class="tok-kw">const</span> r2_over_128: <span class="tok-type">i32</span> = <span class="tok-builtin">@mod</span>(invertMod(<span class="tok-number">128</span>, Q) * r2_mod_q, Q);</span> <span class="line" id="L501"></span> <span class="line" id="L502"><span class="tok-comment">// zetas lists precomputed powers of the primitive root of unity in</span> </span> <span class="line" id="L503"><span class="tok-comment">// Montgomery representation used for the NTT:</span> </span> <span class="line" id="L504"><span class="tok-comment">//</span> </span> <span class="line" id="L505"><span class="tok-comment">// zetas[i] = ζᵇʳᵛ⁽ⁱ⁾ R mod q</span> </span> <span class="line" id="L506"><span class="tok-comment">//</span> </span> <span class="line" id="L507"><span class="tok-comment">// where ζ = 17, brv(i) is the bitreversal of a 7-bit number and R=2¹⁶ mod q.</span> </span> <span class="line" id="L508"><span class="tok-kw">const</span> zetas = computeZetas();</span> <span class="line" id="L509"></span> <span class="line" id="L510"><span class="tok-comment">// invNTTReductions keeps track of which coefficients to apply Barrett</span> </span> <span class="line" id="L511"><span class="tok-comment">// reduction to in Poly.invNTT().</span> </span> <span class="line" id="L512"><span class="tok-comment">//</span> </span> <span class="line" id="L513"><span class="tok-comment">// Generated lazily: once a butterfly is computed which is about to</span> </span> <span class="line" id="L514"><span class="tok-comment">// overflow the i16, the largest coefficient is reduced. If that is</span> </span> <span class="line" id="L515"><span class="tok-comment">// not enough, the other coefficient is reduced as well.</span> </span> <span class="line" id="L516"><span class="tok-comment">//</span> </span> <span class="line" id="L517"><span class="tok-comment">// This is actually optimal, as proven in https://eprint.iacr.org/2020/1377.pdf</span> </span> <span class="line" id="L518"><span class="tok-comment">// TODO generate comptime?</span> </span> <span class="line" id="L519"><span class="tok-kw">const</span> inv_ntt_reductions = [_]<span class="tok-type">i16</span>{</span> <span class="line" id="L520"> -<span class="tok-number">1</span>, <span class="tok-comment">// after layer 1</span> </span> <span class="line" id="L521"> -<span class="tok-number">1</span>, <span class="tok-comment">// after layer 2</span> </span> <span class="line" id="L522"> <span class="tok-number">16</span>,</span> <span class="line" id="L523"> <span class="tok-number">17</span>,</span> <span class="line" id="L524"> <span class="tok-number">48</span>,</span> <span class="line" id="L525"> <span class="tok-number">49</span>,</span> <span class="line" id="L526"> <span class="tok-number">80</span>,</span> <span class="line" id="L527"> <span class="tok-number">81</span>,</span> <span class="line" id="L528"> <span class="tok-number">112</span>,</span> <span class="line" id="L529"> <span class="tok-number">113</span>,</span> <span class="line" id="L530"> <span class="tok-number">144</span>,</span> <span class="line" id="L531"> <span class="tok-number">145</span>,</span> <span class="line" id="L532"> <span class="tok-number">176</span>,</span> <span class="line" id="L533"> <span class="tok-number">177</span>,</span> <span class="line" id="L534"> <span class="tok-number">208</span>,</span> <span class="line" id="L535"> <span class="tok-number">209</span>,</span> <span class="line" id="L536"> <span class="tok-number">240</span>, <span class="tok-number">241</span>, -<span class="tok-number">1</span>, <span class="tok-comment">// after layer 3</span> </span> <span class="line" id="L537"> <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">32</span>,</span> <span class="line" id="L538"> <span class="tok-number">33</span>, <span class="tok-number">34</span>, <span class="tok-number">35</span>,</span> <span class="line" id="L539"> <span class="tok-number">64</span>, <span class="tok-number">65</span>, <span class="tok-number">96</span>,</span> <span class="line" id="L540"> <span class="tok-number">97</span>, <span class="tok-number">98</span>, <span class="tok-number">99</span>,</span> <span class="line" id="L541"> <span class="tok-number">128</span>, <span class="tok-number">129</span>,</span> <span class="line" id="L542"> <span class="tok-number">160</span>, <span class="tok-number">161</span>, <span class="tok-number">162</span>, <span class="tok-number">163</span>, <span class="tok-number">192</span>, <span class="tok-number">193</span>, <span class="tok-number">224</span>, <span class="tok-number">225</span>, <span class="tok-number">226</span>, <span class="tok-number">227</span>, -<span class="tok-number">1</span>, <span class="tok-comment">// after layer 4</span> </span> <span class="line" id="L543"> <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">66</span>, <span class="tok-number">67</span>, <span class="tok-number">68</span>, <span class="tok-number">69</span>, <span class="tok-number">70</span>, <span class="tok-number">71</span>, <span class="tok-number">130</span>, <span class="tok-number">131</span>, <span class="tok-number">194</span>,</span> <span class="line" id="L544"> <span class="tok-number">195</span>, <span class="tok-number">196</span>, <span class="tok-number">197</span>,</span> <span class="line" id="L545"> <span class="tok-number">198</span>, <span class="tok-number">199</span>, -<span class="tok-number">1</span>, <span class="tok-comment">// after layer 5</span> </span> <span class="line" id="L546"> <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>,</span> <span class="line" id="L547"> <span class="tok-number">7</span>, <span class="tok-number">132</span>, <span class="tok-number">133</span>,</span> <span class="line" id="L548"> <span class="tok-number">134</span>, <span class="tok-number">135</span>, <span class="tok-number">136</span>,</span> <span class="line" id="L549"> <span class="tok-number">137</span>, <span class="tok-number">138</span>, <span class="tok-number">139</span>,</span> <span class="line" id="L550"> <span class="tok-number">140</span>, <span class="tok-number">141</span>,</span> <span class="line" id="L551"> <span class="tok-number">142</span>, <span class="tok-number">143</span>, -<span class="tok-number">1</span>, <span class="tok-comment">// after layer 6</span> </span> <span class="line" id="L552"> -<span class="tok-number">1</span>, <span class="tok-comment">// after layer 7</span> </span> <span class="line" id="L553">};</span> <span class="line" id="L554"></span> <span class="line" id="L555"><span class="tok-kw">test</span> <span class="tok-str">"invNTTReductions bounds"</span> {</span> <span class="line" id="L556"> <span class="tok-comment">// Checks whether the reductions proposed by invNTTReductions</span> </span> <span class="line" id="L557"> <span class="tok-comment">// don't overflow during invNTT().</span> </span> <span class="line" id="L558"> <span class="tok-kw">var</span> xs = [_]<span class="tok-type">i32</span>{<span class="tok-number">1</span>} ** <span class="tok-number">256</span>; <span class="tok-comment">// start at \|x\| ≤ q</span> </span> <span class="line" id="L559"></span> <span class="line" id="L560"> <span class="tok-kw">var</span> r: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L561"> <span class="tok-kw">var</span> layer: math.Log2Int(<span class="tok-type">usize</span>) = <span class="tok-number">1</span>;</span> <span class="line" id="L562"> <span class="tok-kw">while</span> (layer < <span class="tok-number">8</span>) : (layer += <span class="tok-number">1</span>) {</span> <span class="line" id="L563"> <span class="tok-kw">const</span> w = <span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-number">1</span>) << layer;</span> <span class="line" id="L564"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L565"></span> <span class="line" id="L566"> <span class="tok-kw">while</span> (i + w < <span class="tok-number">256</span>) {</span> <span class="line" id="L567"> xs[i] = xs[i] + xs[i + w];</span> <span class="line" id="L568"> <span class="tok-kw">try</span> testing.expect(xs[i] <= <span class="tok-number">9</span>); <span class="tok-comment">// we can't exceed 9q</span> </span> <span class="line" id="L569"> xs[i + w] = <span class="tok-number">1</span>;</span> <span class="line" id="L570"> i += <span class="tok-number">1</span>;</span> <span class="line" id="L571"> <span class="tok-kw">if</span> (<span class="tok-builtin">@mod</span>(i, w) == <span class="tok-number">0</span>) {</span> <span class="line" id="L572"> i += w;</span> <span class="line" id="L573"> }</span> <span class="line" id="L574"> }</span> <span class="line" id="L575"></span> <span class="line" id="L576"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L577"> <span class="tok-kw">const</span> j = inv_ntt_reductions[r];</span> <span class="line" id="L578"> r += <span class="tok-number">1</span>;</span> <span class="line" id="L579"> <span class="tok-kw">if</span> (j < <span class="tok-number">0</span>) {</span> <span class="line" id="L580"> <span class="tok-kw">break</span>;</span> <span class="line" id="L581"> }</span> <span class="line" id="L582"> xs[<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(j))] = <span class="tok-number">1</span>;</span> <span class="line" id="L583"> }</span> <span class="line" id="L584"> }</span> <span class="line" id="L585">}</span> <span class="line" id="L586"></span> <span class="line" id="L587"><span class="tok-comment">// Extended euclidean algorithm.</span> </span> <span class="line" id="L588"><span class="tok-comment">//</span> </span> <span class="line" id="L589"><span class="tok-comment">// For a, b finds x, y such that x a + y b = gcd(a, b). Used to compute</span> </span> <span class="line" id="L590"><span class="tok-comment">// modular inverse.</span> </span> <span class="line" id="L591"><span class="tok-kw">fn</span> <span class="tok-fn">eea</span>(a: <span class="tok-kw">anytype</span>, b: <span class="tok-builtin">@TypeOf</span>(a)) EeaResult(<span class="tok-builtin">@TypeOf</span>(a)) {</span> <span class="line" id="L592"> <span class="tok-kw">if</span> (a == <span class="tok-number">0</span>) {</span> <span class="line" id="L593"> <span class="tok-kw">return</span> .{ .gcd = b, .x = <span class="tok-number">0</span>, .y = <span class="tok-number">1</span> };</span> <span class="line" id="L594"> }</span> <span class="line" id="L595"> <span class="tok-kw">const</span> r = eea(<span class="tok-builtin">@rem</span>(b, a), a);</span> <span class="line" id="L596"> <span class="tok-kw">return</span> .{ .gcd = r.gcd, .x = r.y - <span class="tok-builtin">@divTrunc</span>(b, a) * r.x, .y = r.x };</span> <span class="line" id="L597">}</span> <span class="line" id="L598"></span> <span class="line" id="L599"><span class="tok-kw">fn</span> <span class="tok-fn">EeaResult</span>(<span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L600"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> { gcd: T, x: T, y: T };</span> <span class="line" id="L601">}</span> <span class="line" id="L602"></span> <span class="line" id="L603"><span class="tok-comment">// Returns least common multiple of a and b.</span> </span> <span class="line" id="L604"><span class="tok-kw">fn</span> <span class="tok-fn">lcm</span>(a: <span class="tok-kw">anytype</span>, b: <span class="tok-builtin">@TypeOf</span>(a)) <span class="tok-builtin">@TypeOf</span>(a) {</span> <span class="line" id="L605"> <span class="tok-kw">const</span> r = eea(a, b);</span> <span class="line" id="L606"> <span class="tok-kw">return</span> a * b / r.gcd;</span> <span class="line" id="L607">}</span> <span class="line" id="L608"></span> <span class="line" id="L609"><span class="tok-comment">// Invert modulo p.</span> </span> <span class="line" id="L610"><span class="tok-kw">fn</span> <span class="tok-fn">invertMod</span>(a: <span class="tok-kw">anytype</span>, p: <span class="tok-builtin">@TypeOf</span>(a)) <span class="tok-builtin">@TypeOf</span>(a) {</span> <span class="line" id="L611"> <span class="tok-kw">const</span> r = eea(a, p);</span> <span class="line" id="L612"> assert(r.gcd == <span class="tok-number">1</span>);</span> <span class="line" id="L613"> <span class="tok-kw">return</span> r.x;</span> <span class="line" id="L614">}</span> <span class="line" id="L615"></span> <span class="line" id="L616"><span class="tok-comment">// Reduce mod q for testing.</span> </span> <span class="line" id="L617"><span class="tok-kw">fn</span> <span class="tok-fn">modQ32</span>(x: <span class="tok-type">i32</span>) <span class="tok-type">i16</span> {</span> <span class="line" id="L618"> <span class="tok-kw">var</span> y = <span class="tok-builtin">@as</span>(<span class="tok-type">i16</span>, <span class="tok-builtin">@intCast</span>(<span class="tok-builtin">@rem</span>(x, <span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, Q))));</span> <span class="line" id="L619"> <span class="tok-kw">if</span> (y < <span class="tok-number">0</span>) {</span> <span class="line" id="L620"> y += Q;</span> <span class="line" id="L621"> }</span> <span class="line" id="L622"> <span class="tok-kw">return</span> y;</span> <span class="line" id="L623">}</span> <span class="line" id="L624"></span> <span class="line" id="L625"><span class="tok-comment">// Given -2¹⁵ q ≤ x < 2¹⁵ q, returns -q < y < q with x 2⁻¹⁶ = y (mod q).</span> </span> <span class="line" id="L626"><span class="tok-kw">fn</span> <span class="tok-fn">montReduce</span>(x: <span class="tok-type">i32</span>) <span class="tok-type">i16</span> {</span> <span class="line" id="L627"> <span class="tok-kw">const</span> qInv = <span class="tok-kw">comptime</span> invertMod(<span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, Q), R);</span> <span class="line" id="L628"> <span class="tok-comment">// This is Montgomery reduction with R=2¹⁶.</span> </span> <span class="line" id="L629"> <span class="tok-comment">//</span> </span> <span class="line" id="L630"> <span class="tok-comment">// Note gcd(2¹⁶, q) = 1 as q is prime. Write q' := 62209 = q⁻¹ mod R.</span> </span> <span class="line" id="L631"> <span class="tok-comment">// First we compute</span> </span> <span class="line" id="L632"> <span class="tok-comment">//</span> </span> <span class="line" id="L633"> <span class="tok-comment">// m := ((x mod R) q') mod R</span> </span> <span class="line" id="L634"> <span class="tok-comment">// = x q' mod R</span> </span> <span class="line" id="L635"> <span class="tok-comment">// = int16(x q')</span> </span> <span class="line" id="L636"> <span class="tok-comment">// = int16(int32(x) * int32(q'))</span> </span> <span class="line" id="L637"> <span class="tok-comment">//</span> </span> <span class="line" id="L638"> <span class="tok-comment">// Note that x q' might be as big as 2³² and could overflow the int32</span> </span> <span class="line" id="L639"> <span class="tok-comment">// multiplication in the last line. However for any int32s a and b,</span> </span> <span class="line" id="L640"> <span class="tok-comment">// we have int32(int64(a)int64(b)) = int32(ab) and so the result is ok.</span> </span> <span class="line" id="L641"> <span class="tok-kw">const</span> m = <span class="tok-builtin">@as</span>(<span class="tok-type">i16</span>, <span class="tok-builtin">@truncate</span>(<span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, <span class="tok-builtin">@truncate</span>(x % qInv))));</span> <span class="line" id="L642"></span> <span class="line" id="L643"> <span class="tok-comment">// Note that x - m q is divisible by R; indeed modulo R we have</span> </span> <span class="line" id="L644"> <span class="tok-comment">//</span> </span> <span class="line" id="L645"> <span class="tok-comment">// x - m q ≡ x - x q' q ≡ x - x q⁻¹ q ≡ x - x = 0.</span> </span> <span class="line" id="L646"> <span class="tok-comment">//</span> </span> <span class="line" id="L647"> <span class="tok-comment">// We return y := (x - m q) / R. Note that y is indeed correct as</span> </span> <span class="line" id="L648"> <span class="tok-comment">// modulo q we have</span> </span> <span class="line" id="L649"> <span class="tok-comment">//</span> </span> <span class="line" id="L650"> <span class="tok-comment">// y ≡ x R⁻¹ - m q R⁻¹ = x R⁻¹</span> </span> <span class="line" id="L651"> <span class="tok-comment">//</span> </span> <span class="line" id="L652"> <span class="tok-comment">// and as both 2¹⁵ q ≤ m q, x < 2¹⁵ q, we have</span> </span> <span class="line" id="L653"> <span class="tok-comment">// 2¹⁶ q ≤ x - m q < 2¹⁶ and so q ≤ (x - m q) / R < q as desired.</span> </span> <span class="line" id="L654"> <span class="tok-kw">const</span> yR = x - <span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, m) <span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, Q);</span> <span class="line" id="L655"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">i16</span>, <span class="tok-builtin">@bitCast</span>(<span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, <span class="tok-builtin">@truncate</span>(<span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@bitCast</span>(yR)) >> <span class="tok-number">16</span>))));</span> <span class="line" id="L656">}</span> <span class="line" id="L657"></span> <span class="line" id="L658"><span class="tok-kw">test</span> <span class="tok-str">"Test montReduce"</span> {</span> <span class="line" id="L659"> <span class="tok-kw">var</span> rnd = RndGen.init(<span class="tok-number">0</span>);</span> <span class="line" id="L660"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..<span class="tok-number">1000</span>) \|_\| {</span> <span class="line" id="L661"> <span class="tok-kw">const</span> bound = <span class="tok-kw">comptime</span> <span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, Q) * (<span class="tok-number">1</span> << <span class="tok-number">15</span>);</span> <span class="line" id="L662"> <span class="tok-kw">const</span> x = rnd.random().intRangeLessThan(<span class="tok-type">i32</span>, -bound, bound);</span> <span class="line" id="L663"> <span class="tok-kw">const</span> y = montReduce(x);</span> <span class="line" id="L664"> <span class="tok-kw">try</span> testing.expect(-Q < y <span class="tok-kw">and</span> y < Q);</span> <span class="line" id="L665"> <span class="tok-kw">try</span> testing.expectEqual(modQ32(x), modQ32(<span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, y) * R));</span> <span class="line" id="L666"> }</span> <span class="line" id="L667">}</span> <span class="line" id="L668"></span> <span class="line" id="L669"><span class="tok-comment">// Given any x, return x R mod q where R=2¹⁶.</span> </span> <span class="line" id="L670"><span class="tok-kw">fn</span> <span class="tok-fn">feToMont</span>(x: <span class="tok-type">i16</span>) <span class="tok-type">i16</span> {</span> <span class="line" id="L671"> <span class="tok-comment">// Note \|1353 x\| ≤ 1353 2¹⁵ ≤ 13318 q ≤ 2¹⁵ q and so we're within</span> </span> <span class="line" id="L672"> <span class="tok-comment">// the bounds of montReduce.</span> </span> <span class="line" id="L673"> <span class="tok-kw">return</span> montReduce(<span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, x) * r2_mod_q);</span> <span class="line" id="L674">}</span> <span class="line" id="L675"></span> <span class="line" id="L676"><span class="tok-kw">test</span> <span class="tok-str">"Test feToMont"</span> {</span> <span class="line" id="L677"> <span class="tok-kw">var</span> x: <span class="tok-type">i32</span> = -(<span class="tok-number">1</span> << <span class="tok-number">15</span>);</span> <span class="line" id="L678"> <span class="tok-kw">while</span> (x < <span class="tok-number">1</span> << <span class="tok-number">15</span>) : (x += <span class="tok-number">1</span>) {</span> <span class="line" id="L679"> <span class="tok-kw">const</span> y = feToMont(<span class="tok-builtin">@as</span>(<span class="tok-type">i16</span>, <span class="tok-builtin">@intCast</span>(x)));</span> <span class="line" id="L680"> <span class="tok-kw">try</span> testing.expectEqual(modQ32(<span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, y)), modQ32(x * r_mod_q));</span> <span class="line" id="L681"> }</span> <span class="line" id="L682">}</span> <span class="line" id="L683"></span> <span class="line" id="L684"><span class="tok-comment">// Given any x, compute 0 ≤ y ≤ q with x = y (mod q).</span> </span> <span class="line" id="L685"><span class="tok-comment">//</span> </span> <span class="line" id="L686"><span class="tok-comment">// Beware: we might have feBarrettReduce(x) = q ≠ 0 for some x. In fact,</span> </span> <span class="line" id="L687"><span class="tok-comment">// this happens if and only if x = -nq for some positive integer n.</span> </span> <span class="line" id="L688"><span class="tok-kw">fn</span> <span class="tok-fn">feBarrettReduce</span>(x: <span class="tok-type">i16</span>) <span class="tok-type">i16</span> {</span> <span class="line" id="L689"> <span class="tok-comment">// This is standard Barrett reduction.</span> </span> <span class="line" id="L690"> <span class="tok-comment">//</span> </span> <span class="line" id="L691"> <span class="tok-comment">// For any x we have x mod q = x - ⌊x/q⌋ q. We will use 20159/2²⁶ as</span> </span> <span class="line" id="L692"> <span class="tok-comment">// an approximation of 1/q. Note that 0 ≤ 20159/2²⁶ - 1/q ≤ 0.135/2²⁶</span> </span> <span class="line" id="L693"> <span class="tok-comment">// and so \| x 20156/2²⁶ - x/q \| ≤ 2⁻¹⁰ for \|x\| ≤ 2¹⁶. For all x</span> </span> <span class="line" id="L694"> <span class="tok-comment">// not a multiple of q, the number x/q is further than 1/q from any integer</span> </span> <span class="line" id="L695"> <span class="tok-comment">// and so ⌊x 20156/2²⁶⌋ = ⌊x/q⌋. If x is a multiple of q and x is positive,</span> </span> <span class="line" id="L696"> <span class="tok-comment">// then x 20156/2²⁶ is larger than x/q so ⌊x 20156/2²⁶⌋ = ⌊x/q⌋ as well.</span> </span> <span class="line" id="L697"> <span class="tok-comment">// Finally, if x is negative multiple of q, then ⌊x 20156/2²⁶⌋ = ⌊x/q⌋-1.</span> </span> <span class="line" id="L698"> <span class="tok-comment">// Thus</span> </span> <span class="line" id="L699"> <span class="tok-comment">// [ q if x=-nq for pos. integer n</span> </span> <span class="line" id="L700"> <span class="tok-comment">// x - ⌊x 20156/2²⁶⌋ q = [</span> </span> <span class="line" id="L701"> <span class="tok-comment">// [ x mod q otherwise</span> </span> <span class="line" id="L702"> <span class="tok-comment">//</span> </span> <span class="line" id="L703"> <span class="tok-comment">// To actually compute this, note that</span> </span> <span class="line" id="L704"> <span class="tok-comment">//</span> </span> <span class="line" id="L705"> <span class="tok-comment">// ⌊x 20156/2²⁶⌋ = (20159 x) >> 26.</span> </span> <span class="line" id="L706"> <span class="tok-kw">return</span> x -% <span class="tok-builtin">@as</span>(<span class="tok-type">i16</span>, <span class="tok-builtin">@intCast</span>((<span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, x) * <span class="tok-number">20159</span>) >> <span class="tok-number">26</span>)) % Q;</span> <span class="line" id="L707">}</span> <span class="line" id="L708"></span> <span class="line" id="L709"><span class="tok-kw">test</span> <span class="tok-str">"Test Barrett reduction"</span> {</span> <span class="line" id="L710"> <span class="tok-kw">var</span> x: <span class="tok-type">i32</span> = -(<span class="tok-number">1</span> << <span class="tok-number">15</span>);</span> <span class="line" id="L711"> <span class="tok-kw">while</span> (x < <span class="tok-number">1</span> << <span class="tok-number">15</span>) : (x += <span class="tok-number">1</span>) {</span> <span class="line" id="L712"> <span class="tok-kw">var</span> y1 = feBarrettReduce(<span class="tok-builtin">@as</span>(<span class="tok-type">i16</span>, <span class="tok-builtin">@intCast</span>(x)));</span> <span class="line" id="L713"> <span class="tok-kw">const</span> y2 = <span class="tok-builtin">@mod</span>(<span class="tok-builtin">@as</span>(<span class="tok-type">i16</span>, <span class="tok-builtin">@intCast</span>(x)), Q);</span> <span class="line" id="L714"> <span class="tok-kw">if</span> (x < <span class="tok-number">0</span> <span class="tok-kw">and</span> <span class="tok-builtin">@rem</span>(-x, Q) == <span class="tok-number">0</span>) {</span> <span class="line" id="L715"> y1 -= Q;</span> <span class="line" id="L716"> }</span> <span class="line" id="L717"> <span class="tok-kw">try</span> testing.expectEqual(y1, y2);</span> <span class="line" id="L718"> }</span> <span class="line" id="L719">}</span> <span class="line" id="L720"></span> <span class="line" id="L721"><span class="tok-comment">// Returns x if x < q and x - q otherwise. Assumes x ≥ -29439.</span> </span> <span class="line" id="L722"><span class="tok-kw">fn</span> <span class="tok-fn">csubq</span>(x: <span class="tok-type">i16</span>) <span class="tok-type">i16</span> {</span> <span class="line" id="L723"> <span class="tok-kw">var</span> r = x;</span> <span class="line" id="L724"> r -= Q;</span> <span class="line" id="L725"> r += (r >> <span class="tok-number">15</span>) & Q;</span> <span class="line" id="L726"> <span class="tok-kw">return</span> r;</span> <span class="line" id="L727">}</span> <span class="line" id="L728"></span> <span class="line" id="L729"><span class="tok-kw">test</span> <span class="tok-str">"Test csubq"</span> {</span> <span class="line" id="L730"> <span class="tok-kw">var</span> x: <span class="tok-type">i32</span> = -<span class="tok-number">29439</span>;</span> <span class="line" id="L731"> <span class="tok-kw">while</span> (x < <span class="tok-number">1</span> << <span class="tok-number">15</span>) : (x += <span class="tok-number">1</span>) {</span> <span class="line" id="L732"> <span class="tok-kw">const</span> y1 = csubq(<span class="tok-builtin">@as</span>(<span class="tok-type">i16</span>, <span class="tok-builtin">@intCast</span>(x)));</span> <span class="line" id="L733"> <span class="tok-kw">var</span> y2 = <span class="tok-builtin">@as</span>(<span class="tok-type">i16</span>, <span class="tok-builtin">@intCast</span>(x));</span> <span class="line" id="L734"> <span class="tok-kw">if</span> (<span class="tok-builtin">@as</span>(<span class="tok-type">i16</span>, <span class="tok-builtin">@intCast</span>(x)) >= Q) {</span> <span class="line" id="L735"> y2 -= Q;</span> <span class="line" id="L736"> }</span> <span class="line" id="L737"> <span class="tok-kw">try</span> testing.expectEqual(y1, y2);</span> <span class="line" id="L738"> }</span> <span class="line" id="L739">}</span> <span class="line" id="L740"></span> <span class="line" id="L741"><span class="tok-comment">// Compute a^s mod p.</span> </span> <span class="line" id="L742"><span class="tok-kw">fn</span> <span class="tok-fn">mpow</span>(a: <span class="tok-kw">anytype</span>, s: <span class="tok-builtin">@TypeOf</span>(a), p: <span class="tok-builtin">@TypeOf</span>(a)) <span class="tok-builtin">@TypeOf</span>(a) {</span> <span class="line" id="L743"> <span class="tok-kw">var</span> ret: <span class="tok-builtin">@TypeOf</span>(a) = <span class="tok-number">1</span>;</span> <span class="line" id="L744"> <span class="tok-kw">var</span> s2 = s;</span> <span class="line" id="L745"> <span class="tok-kw">var</span> a2 = a;</span> <span class="line" id="L746"></span> <span class="line" id="L747"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L748"> <span class="tok-kw">if</span> (s2 & <span class="tok-number">1</span> == <span class="tok-number">1</span>) {</span> <span class="line" id="L749"> ret = <span class="tok-builtin">@mod</span>(ret a2, p);</span> <span class="line" id="L750"> }</span> <span class="line" id="L751"> s2 >>= <span class="tok-number">1</span>;</span> <span class="line" id="L752"> <span class="tok-kw">if</span> (s2 == <span class="tok-number">0</span>) {</span> <span class="line" id="L753"> <span class="tok-kw">break</span>;</span> <span class="line" id="L754"> }</span> <span class="line" id="L755"> a2 = <span class="tok-builtin">@mod</span>(a2 * a2, p);</span> <span class="line" id="L756"> }</span> <span class="line" id="L757"> <span class="tok-kw">return</span> ret;</span> <span class="line" id="L758">}</span> <span class="line" id="L759"></span> <span class="line" id="L760"><span class="tok-comment">// Computes zetas table used by ntt and invNTT.</span> </span> <span class="line" id="L761"><span class="tok-kw">fn</span> <span class="tok-fn">computeZetas</span>() [<span class="tok-number">128</span>]<span class="tok-type">i16</span> {</span> <span class="line" id="L762"> <span class="tok-builtin">@setEvalBranchQuota</span>(<span class="tok-number">10000</span>);</span> <span class="line" id="L763"> <span class="tok-kw">var</span> ret: [<span class="tok-number">128</span>]<span class="tok-type">i16</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L764"> <span class="tok-kw">for</span> (&ret, <span class="tok-number">0</span>..) \|r, i\| {</span> <span class="line" id="L765"> <span class="tok-kw">const</span> t = <span class="tok-builtin">@as</span>(<span class="tok-type">i16</span>, <span class="tok-builtin">@intCast</span>(mpow(<span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, zeta), <span class="tok-builtin">@bitReverse</span>(<span class="tok-builtin">@as</span>(<span class="tok-type">u7</span>, <span class="tok-builtin">@intCast</span>(i))), Q)));</span> <span class="line" id="L766"> r. = csubq(feBarrettReduce(feToMont(t)));</span> <span class="line" id="L767"> }</span> <span class="line" id="L768"> <span class="tok-kw">return</span> ret;</span> <span class="line" id="L769">}</span> <span class="line" id="L770"></span> <span class="line" id="L771"><span class="tok-comment">// An element of our base ring R which are polynomials over ℤ_q</span> </span> <span class="line" id="L772"><span class="tok-comment">// modulo the equation Xᴺ = -1, where q=3329 and N=256.</span> </span> <span class="line" id="L773"><span class="tok-comment">//</span> </span> <span class="line" id="L774"><span class="tok-comment">// This type is also used to store NTT-transformed polynomials,</span> </span> <span class="line" id="L775"><span class="tok-comment">// see Poly.NTT().</span> </span> <span class="line" id="L776"><span class="tok-comment">//</span> </span> <span class="line" id="L777"><span class="tok-comment">// Coefficients aren't always reduced. See Normalize().</span> </span> <span class="line" id="L778"><span class="tok-kw">const</span> Poly = <span class="tok-kw">struct</span> {</span> <span class="line" id="L779"> cs: [N]<span class="tok-type">i16</span>,</span> <span class="line" id="L780"></span> <span class="line" id="L781"> <span class="tok-kw">const</span> bytes_length = N / <span class="tok-number">2</span> * <span class="tok-number">3</span>;</span> <span class="line" id="L782"> <span class="tok-kw">const</span> zero: Poly = .{ .cs = .{<span class="tok-number">0</span>} ** N };</span> <span class="line" id="L783"></span> <span class="line" id="L784"> <span class="tok-kw">fn</span> <span class="tok-fn">add</span>(a: Poly, b: Poly) Poly {</span> <span class="line" id="L785"> <span class="tok-kw">var</span> ret: Poly = <span class="tok-null">undefined</span>;</span> <span class="line" id="L786"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..N) \|i\| {</span> <span class="line" id="L787"> ret.cs[i] = a.cs[i] + b.cs[i];</span> <span class="line" id="L788"> }</span> <span class="line" id="L789"> <span class="tok-kw">return</span> ret;</span> <span class="line" id="L790"> }</span> <span class="line" id="L791"></span> <span class="line" id="L792"> <span class="tok-kw">fn</span> <span class="tok-fn">sub</span>(a: Poly, b: Poly) Poly {</span> <span class="line" id="L793"> <span class="tok-kw">var</span> ret: Poly = <span class="tok-null">undefined</span>;</span> <span class="line" id="L794"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..N) \|i\| {</span> <span class="line" id="L795"> ret.cs[i] = a.cs[i] - b.cs[i];</span> <span class="line" id="L796"> }</span> <span class="line" id="L797"> <span class="tok-kw">return</span> ret;</span> <span class="line" id="L798"> }</span> <span class="line" id="L799"></span> <span class="line" id="L800"> <span class="tok-comment">// For testing, generates a random polynomial with for each</span> </span> <span class="line" id="L801"> <span class="tok-comment">// coefficient \|x\| ≤ q.</span> </span> <span class="line" id="L802"> <span class="tok-kw">fn</span> <span class="tok-fn">randAbsLeqQ</span>(rnd: <span class="tok-kw">anytype</span>) Poly {</span> <span class="line" id="L803"> <span class="tok-kw">var</span> ret: Poly = <span class="tok-null">undefined</span>;</span> <span class="line" id="L804"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..N) \|i\| {</span> <span class="line" id="L805"> ret.cs[i] = rnd.random().intRangeAtMost(<span class="tok-type">i16</span>, -Q, Q);</span> <span class="line" id="L806"> }</span> <span class="line" id="L807"> <span class="tok-kw">return</span> ret;</span> <span class="line" id="L808"> }</span> <span class="line" id="L809"></span> <span class="line" id="L810"> <span class="tok-comment">// For testing, generates a random normalized polynomial.</span> </span> <span class="line" id="L811"> <span class="tok-kw">fn</span> <span class="tok-fn">randNormalized</span>(rnd: <span class="tok-kw">anytype</span>) Poly {</span> <span class="line" id="L812"> <span class="tok-kw">var</span> ret: Poly = <span class="tok-null">undefined</span>;</span> <span class="line" id="L813"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..N) \|i\| {</span> <span class="line" id="L814"> ret.cs[i] = rnd.random().intRangeLessThan(<span class="tok-type">i16</span>, <span class="tok-number">0</span>, Q);</span> <span class="line" id="L815"> }</span> <span class="line" id="L816"> <span class="tok-kw">return</span> ret;</span> <span class="line" id="L817"> }</span> <span class="line" id="L818"></span> <span class="line" id="L819"> <span class="tok-comment">// Executes a forward "NTT" on p.</span> </span> <span class="line" id="L820"> <span class="tok-comment">//</span> </span> <span class="line" id="L821"> <span class="tok-comment">// Assumes the coefficients are in absolute value ≤q. The resulting</span> </span> <span class="line" id="L822"> <span class="tok-comment">// coefficients are in absolute value ≤7q. If the input is in Montgomery</span> </span> <span class="line" id="L823"> <span class="tok-comment">// form, then the result is in Montgomery form and so (by linearity of the NTT)</span> </span> <span class="line" id="L824"> <span class="tok-comment">// if the input is in regular form, then the result is also in regular form.</span> </span> <span class="line" id="L825"> <span class="tok-kw">fn</span> <span class="tok-fn">ntt</span>(a: Poly) Poly {</span> <span class="line" id="L826"> <span class="tok-comment">// Note that ℤ_q does not have a primitive 512ᵗʰ root of unity (as 512</span> </span> <span class="line" id="L827"> <span class="tok-comment">// does not divide into q-1) and so we cannot do a regular NTT. ℤ_q</span> </span> <span class="line" id="L828"> <span class="tok-comment">// does have a primitive 256ᵗʰ root of unity, the smallest of which</span> </span> <span class="line" id="L829"> <span class="tok-comment">// is ζ := 17.</span> </span> <span class="line" id="L830"> <span class="tok-comment">//</span> </span> <span class="line" id="L831"> <span class="tok-comment">// Recall that our base ring R := ℤ_q[x] / (x²⁵⁶ + 1). The polynomial</span> </span> <span class="line" id="L832"> <span class="tok-comment">// x²⁵⁶+1 will not split completely (as its roots would be 512ᵗʰ roots</span> </span> <span class="line" id="L833"> <span class="tok-comment">// of unity.) However, it does split almost (using ζ¹²⁸ = -1):</span> </span> <span class="line" id="L834"> <span class="tok-comment">//</span> </span> <span class="line" id="L835"> <span class="tok-comment">// x²⁵⁶ + 1 = (x²)¹²⁸ - ζ¹²⁸</span> </span> <span class="line" id="L836"> <span class="tok-comment">// = ((x²)⁶⁴ - ζ⁶⁴)((x²)⁶⁴ + ζ⁶⁴)</span> </span> <span class="line" id="L837"> <span class="tok-comment">// = ((x²)³² - ζ³²)((x²)³² + ζ³²)((x²)³² - ζ⁹⁶)((x²)³² + ζ⁹⁶)</span> </span> <span class="line" id="L838"> <span class="tok-comment">// ⋮</span> </span> <span class="line" id="L839"> <span class="tok-comment">// = (x² - ζ)(x² + ζ)(x² - ζ⁶⁵)(x² + ζ⁶⁵) … (x² + ζ¹²⁷)</span> </span> <span class="line" id="L840"> <span class="tok-comment">//</span> </span> <span class="line" id="L841"> <span class="tok-comment">// Note that the powers of ζ that appear (from the second line down) are</span> </span> <span class="line" id="L842"> <span class="tok-comment">// in binary</span> </span> <span class="line" id="L843"> <span class="tok-comment">//</span> </span> <span class="line" id="L844"> <span class="tok-comment">// 0100000 1100000</span> </span> <span class="line" id="L845"> <span class="tok-comment">// 0010000 1010000 0110000 1110000</span> </span> <span class="line" id="L846"> <span class="tok-comment">// 0001000 1001000 0101000 1101000 0011000 1011000 0111000 1111000</span> </span> <span class="line" id="L847"> <span class="tok-comment">// …</span> </span> <span class="line" id="L848"> <span class="tok-comment">//</span> </span> <span class="line" id="L849"> <span class="tok-comment">// That is: brv(2), brv(3), brv(4), …, where brv(x) denotes the 7-bit</span> </span> <span class="line" id="L850"> <span class="tok-comment">// bitreversal of x. These powers of ζ are given by the Zetas array.</span> </span> <span class="line" id="L851"> <span class="tok-comment">//</span> </span> <span class="line" id="L852"> <span class="tok-comment">// The polynomials x² ± ζⁱ are irreducible and coprime, hence by</span> </span> <span class="line" id="L853"> <span class="tok-comment">// the Chinese Remainder Theorem we know</span> </span> <span class="line" id="L854"> <span class="tok-comment">//</span> </span> <span class="line" id="L855"> <span class="tok-comment">// ℤ_q[x]/(x²⁵⁶+1) → ℤ_q[x]/(x²-ζ) x … x ℤ_q[x]/(x²+ζ¹²⁷)</span> </span> <span class="line" id="L856"> <span class="tok-comment">//</span> </span> <span class="line" id="L857"> <span class="tok-comment">// given by a ↦ ( a mod x²-ζ, …, a mod x²+ζ¹²⁷ )</span> </span> <span class="line" id="L858"> <span class="tok-comment">// is an isomorphism, which is the "NTT". It can be efficiently computed by</span> </span> <span class="line" id="L859"> <span class="tok-comment">//</span> </span> <span class="line" id="L860"> <span class="tok-comment">//</span> </span> <span class="line" id="L861"> <span class="tok-comment">// a ↦ ( a mod (x²)⁶⁴ - ζ⁶⁴, a mod (x²)⁶⁴ + ζ⁶⁴ )</span> </span> <span class="line" id="L862"> <span class="tok-comment">// ↦ ( a mod (x²)³² - ζ³², a mod (x²)³² + ζ³²,</span> </span> <span class="line" id="L863"> <span class="tok-comment">// a mod (x²)⁹⁶ - ζ⁹⁶, a mod (x²)⁹⁶ + ζ⁹⁶ )</span> </span> <span class="line" id="L864"> <span class="tok-comment">//</span> </span> <span class="line" id="L865"> <span class="tok-comment">// et cetera</span> </span> <span class="line" id="L866"> <span class="tok-comment">// If N was 8 then this can be pictured in the following diagram:</span> </span> <span class="line" id="L867"> <span class="tok-comment">//</span> </span> <span class="line" id="L868"> <span class="tok-comment">// https://cnx.org/resources/17ee4dfe517a6adda05377b25a00bf6e6c93c334/File0026.png</span> </span> <span class="line" id="L869"> <span class="tok-comment">//</span> </span> <span class="line" id="L870"> <span class="tok-comment">// Each cross is a Cooley-Tukey butterfly: it's the map</span> </span> <span class="line" id="L871"> <span class="tok-comment">//</span> </span> <span class="line" id="L872"> <span class="tok-comment">// (a, b) ↦ (a + ζb, a - ζb)</span> </span> <span class="line" id="L873"> <span class="tok-comment">//</span> </span> <span class="line" id="L874"> <span class="tok-comment">// for the appropriate power ζ for that column and row group.</span> </span> <span class="line" id="L875"> <span class="tok-kw">var</span> p = a;</span> <span class="line" id="L876"> <span class="tok-kw">var</span> k: <span class="tok-type">usize</span> = <span class="tok-number">0</span>; <span class="tok-comment">// index into zetas</span> </span> <span class="line" id="L877"></span> <span class="line" id="L878"> <span class="tok-kw">var</span> l = N >> <span class="tok-number">1</span>;</span> <span class="line" id="L879"> <span class="tok-kw">while</span> (l > <span class="tok-number">1</span>) : (l >>= <span class="tok-number">1</span>) {</span> <span class="line" id="L880"> <span class="tok-comment">// On the nᵗʰ iteration of the l-loop, the absolute value of the</span> </span> <span class="line" id="L881"> <span class="tok-comment">// coefficients are bounded by nq.</span> </span> <span class="line" id="L882"></span> <span class="line" id="L883"> <span class="tok-comment">// offset effectively loops over the row groups in this column; it is</span> </span> <span class="line" id="L884"> <span class="tok-comment">// the first row in the row group.</span> </span> <span class="line" id="L885"> <span class="tok-kw">var</span> offset: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L886"> <span class="tok-kw">while</span> (offset < N - l) : (offset += <span class="tok-number">2</span> * l) {</span> <span class="line" id="L887"> k += <span class="tok-number">1</span>;</span> <span class="line" id="L888"> <span class="tok-kw">const</span> z = <span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, zetas[k]);</span> <span class="line" id="L889"></span> <span class="line" id="L890"> <span class="tok-comment">// j loops over each butterfly in the row group.</span> </span> <span class="line" id="L891"> <span class="tok-kw">for</span> (offset..offset + l) \|j\| {</span> <span class="line" id="L892"> <span class="tok-kw">const</span> t = montReduce(z * <span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, p.cs[j + l]));</span> <span class="line" id="L893"> p.cs[j + l] = p.cs[j] - t;</span> <span class="line" id="L894"> p.cs[j] += t;</span> <span class="line" id="L895"> }</span> <span class="line" id="L896"> }</span> <span class="line" id="L897"> }</span> <span class="line" id="L898"></span> <span class="line" id="L899"> <span class="tok-kw">return</span> p;</span> <span class="line" id="L900"> }</span> <span class="line" id="L901"></span> <span class="line" id="L902"> <span class="tok-comment">// Executes an inverse "NTT" on p and multiply by the Montgomery factor R.</span> </span> <span class="line" id="L903"> <span class="tok-comment">//</span> </span> <span class="line" id="L904"> <span class="tok-comment">// Assumes the coefficients are in absolute value ≤q. The resulting</span> </span> <span class="line" id="L905"> <span class="tok-comment">// coefficients are in absolute value ≤q. If the input is in Montgomery</span> </span> <span class="line" id="L906"> <span class="tok-comment">// form, then the result is in Montgomery form and so (by linearity)</span> </span> <span class="line" id="L907"> <span class="tok-comment">// if the input is in regular form, then the result is also in regular form.</span> </span> <span class="line" id="L908"> <span class="tok-kw">fn</span> <span class="tok-fn">invNTT</span>(a: Poly) Poly {</span> <span class="line" id="L909"> <span class="tok-kw">var</span> k: <span class="tok-type">usize</span> = <span class="tok-number">127</span>; <span class="tok-comment">// index into zetas</span> </span> <span class="line" id="L910"> <span class="tok-kw">var</span> r: <span class="tok-type">usize</span> = <span class="tok-number">0</span>; <span class="tok-comment">// index into invNTTReductions</span> </span> <span class="line" id="L911"> <span class="tok-kw">var</span> p = a;</span> <span class="line" id="L912"></span> <span class="line" id="L913"> <span class="tok-comment">// We basically do the oppposite of NTT, but postpone dividing by 2 in the</span> </span> <span class="line" id="L914"> <span class="tok-comment">// inverse of the Cooley-Tukey butterfly and accumulate that into a big</span> </span> <span class="line" id="L915"> <span class="tok-comment">// division by 2⁷ at the end. See the comments in the ntt() function.</span> </span> <span class="line" id="L916"></span> <span class="line" id="L917"> <span class="tok-kw">var</span> l: <span class="tok-type">usize</span> = <span class="tok-number">2</span>;</span> <span class="line" id="L918"> <span class="tok-kw">while</span> (l < N) : (l <<= <span class="tok-number">1</span>) {</span> <span class="line" id="L919"> <span class="tok-kw">var</span> offset: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L920"> <span class="tok-kw">while</span> (offset < N - l) : (offset += <span class="tok-number">2</span> * l) {</span> <span class="line" id="L921"> <span class="tok-comment">// As we're inverting, we need powers of ζ⁻¹ (instead of ζ).</span> </span> <span class="line" id="L922"> <span class="tok-comment">// To be precise, we need ζᵇʳᵛ⁽ᵏ⁾⁻¹²⁸. However, as ζ⁻¹²⁸ = -1,</span> </span> <span class="line" id="L923"> <span class="tok-comment">// we can use the existing zetas table instead of</span> </span> <span class="line" id="L924"> <span class="tok-comment">// keeping a separate invZetas table as in Dilithium.</span> </span> <span class="line" id="L925"></span> <span class="line" id="L926"> <span class="tok-kw">const</span> minZeta = <span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, zetas[k]);</span> <span class="line" id="L927"> k -= <span class="tok-number">1</span>;</span> <span class="line" id="L928"></span> <span class="line" id="L929"> <span class="tok-kw">for</span> (offset..offset + l) \|j\| {</span> <span class="line" id="L930"> <span class="tok-comment">// Gentleman-Sande butterfly: (a, b) ↦ (a + b, ζ(a-b))</span> </span> <span class="line" id="L931"> <span class="tok-kw">const</span> t = p.cs[j + l] - p.cs[j];</span> <span class="line" id="L932"> p.cs[j] += p.cs[j + l];</span> <span class="line" id="L933"> p.cs[j + l] = montReduce(minZeta * <span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, t));</span> <span class="line" id="L934"></span> <span class="line" id="L935"> <span class="tok-comment">// Note that if we had \|a\| < αq and \|b\| < βq before the</span> </span> <span class="line" id="L936"> <span class="tok-comment">// butterfly, then now we have \|a\| < (α+β)q and \|b\| < q.</span> </span> <span class="line" id="L937"> }</span> <span class="line" id="L938"> }</span> <span class="line" id="L939"></span> <span class="line" id="L940"> <span class="tok-comment">// We let the invNTTReductions instruct us which coefficients to</span> </span> <span class="line" id="L941"> <span class="tok-comment">// Barrett reduce.</span> </span> <span class="line" id="L942"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L943"> <span class="tok-kw">const</span> i = inv_ntt_reductions[r];</span> <span class="line" id="L944"> r += <span class="tok-number">1</span>;</span> <span class="line" id="L945"> <span class="tok-kw">if</span> (i < <span class="tok-number">0</span>) {</span> <span class="line" id="L946"> <span class="tok-kw">break</span>;</span> <span class="line" id="L947"> }</span> <span class="line" id="L948"> p.cs[<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(i))] = feBarrettReduce(p.cs[<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(i))]);</span> <span class="line" id="L949"> }</span> <span class="line" id="L950"> }</span> <span class="line" id="L951"></span> <span class="line" id="L952"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..N) \|j\| {</span> <span class="line" id="L953"> <span class="tok-comment">// Note 1441 = (128)⁻¹ R². The coefficients are bounded by 9q, so</span> </span> <span class="line" id="L954"> <span class="tok-comment">// as 1441 * 9 ≈ 2¹⁴ < 2¹⁵, we're within the required bounds</span> </span> <span class="line" id="L955"> <span class="tok-comment">// for montReduce().</span> </span> <span class="line" id="L956"> p.cs[j] = montReduce(r2_over_128 * <span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, p.cs[j]));</span> <span class="line" id="L957"> }</span> <span class="line" id="L958"></span> <span class="line" id="L959"> <span class="tok-kw">return</span> p;</span> <span class="line" id="L960"> }</span> <span class="line" id="L961"></span> <span class="line" id="L962"> <span class="tok-comment">// Normalizes coefficients.</span> </span> <span class="line" id="L963"> <span class="tok-comment">//</span> </span> <span class="line" id="L964"> <span class="tok-comment">// Ensures each coefficient is in {0, …, q-1}.</span> </span> <span class="line" id="L965"> <span class="tok-kw">fn</span> <span class="tok-fn">normalize</span>(a: Poly) Poly {</span> <span class="line" id="L966"> <span class="tok-kw">var</span> ret: Poly = <span class="tok-null">undefined</span>;</span> <span class="line" id="L967"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..N) \|i\| {</span> <span class="line" id="L968"> ret.cs[i] = csubq(feBarrettReduce(a.cs[i]));</span> <span class="line" id="L969"> }</span> <span class="line" id="L970"> <span class="tok-kw">return</span> ret;</span> <span class="line" id="L971"> }</span> <span class="line" id="L972"></span> <span class="line" id="L973"> <span class="tok-comment">// Put p in Montgomery form.</span> </span> <span class="line" id="L974"> <span class="tok-kw">fn</span> <span class="tok-fn">toMont</span>(a: Poly) Poly {</span> <span class="line" id="L975"> <span class="tok-kw">var</span> ret: Poly = <span class="tok-null">undefined</span>;</span> <span class="line" id="L976"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..N) \|i\| {</span> <span class="line" id="L977"> ret.cs[i] = feToMont(a.cs[i]);</span> <span class="line" id="L978"> }</span> <span class="line" id="L979"> <span class="tok-kw">return</span> ret;</span> <span class="line" id="L980"> }</span> <span class="line" id="L981"></span> <span class="line" id="L982"> <span class="tok-comment">// Barret reduce coefficients.</span> </span> <span class="line" id="L983"> <span class="tok-comment">//</span> </span> <span class="line" id="L984"> <span class="tok-comment">// Beware, this does not fully normalize coefficients.</span> </span> <span class="line" id="L985"> <span class="tok-kw">fn</span> <span class="tok-fn">barrettReduce</span>(a: Poly) Poly {</span> <span class="line" id="L986"> <span class="tok-kw">var</span> ret: Poly = <span class="tok-null">undefined</span>;</span> <span class="line" id="L987"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..N) \|i\| {</span> <span class="line" id="L988"> ret.cs[i] = feBarrettReduce(a.cs[i]);</span> <span class="line" id="L989"> }</span> <span class="line" id="L990"> <span class="tok-kw">return</span> ret;</span> <span class="line" id="L991"> }</span> <span class="line" id="L992"></span> <span class="line" id="L993"> <span class="tok-kw">fn</span> <span class="tok-fn">compressedSize</span>(<span class="tok-kw">comptime</span> d: <span class="tok-type">u8</span>) <span class="tok-type">usize</span> {</span> <span class="line" id="L994"> <span class="tok-kw">return</span> <span class="tok-builtin">@divTrunc</span>(N * d, <span class="tok-number">8</span>);</span> <span class="line" id="L995"> }</span> <span class="line" id="L996"></span> <span class="line" id="L997"> <span class="tok-comment">// Returns packed Compress_q(p, d).</span> </span> <span class="line" id="L998"> <span class="tok-comment">//</span> </span> <span class="line" id="L999"> <span class="tok-comment">// Assumes p is normalized.</span> </span> <span class="line" id="L1000"> <span class="tok-kw">fn</span> <span class="tok-fn">compress</span>(p: Poly, <span class="tok-kw">comptime</span> d: <span class="tok-type">u8</span>) [compressedSize(d)]<span class="tok-type">u8</span> {</span> <span class="line" id="L1001"> <span class="tok-builtin">@setEvalBranchQuota</span>(<span class="tok-number">10000</span>);</span> <span class="line" id="L1002"> <span class="tok-kw">const</span> q_over_2: <span class="tok-type">u32</span> = <span class="tok-kw">comptime</span> <span class="tok-builtin">@divTrunc</span>(Q, <span class="tok-number">2</span>); <span class="tok-comment">// (q-1)/2</span> </span> <span class="line" id="L1003"> <span class="tok-kw">const</span> two_d_min_1: <span class="tok-type">u32</span> = <span class="tok-kw">comptime</span> (<span class="tok-number">1</span> << d) - <span class="tok-number">1</span>; <span class="tok-comment">// 2ᵈ-1</span> </span> <span class="line" id="L1004"> <span class="tok-kw">var</span> in_off: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L1005"> <span class="tok-kw">var</span> out_off: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L1006"></span> <span class="line" id="L1007"> <span class="tok-kw">const</span> batch_size: <span class="tok-type">usize</span> = <span class="tok-kw">comptime</span> lcm(<span class="tok-builtin">@as</span>(<span class="tok-type">i16</span>, d), <span class="tok-number">8</span>);</span> <span class="line" id="L1008"> <span class="tok-kw">const</span> in_batch_size: <span class="tok-type">usize</span> = <span class="tok-kw">comptime</span> batch_size / d;</span> <span class="line" id="L1009"> <span class="tok-kw">const</span> out_batch_size: <span class="tok-type">usize</span> = <span class="tok-kw">comptime</span> batch_size / <span class="tok-number">8</span>;</span> <span class="line" id="L1010"></span> <span class="line" id="L1011"> <span class="tok-kw">const</span> out_length: <span class="tok-type">usize</span> = <span class="tok-kw">comptime</span> <span class="tok-builtin">@divTrunc</span>(N * d, <span class="tok-number">8</span>);</span> <span class="line" id="L1012"> <span class="tok-kw">comptime</span> assert(out_length * <span class="tok-number">8</span> == d * N);</span> <span class="line" id="L1013"> <span class="tok-kw">var</span> out = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} ** out_length;</span> <span class="line" id="L1014"></span> <span class="line" id="L1015"> <span class="tok-kw">while</span> (in_off < N) {</span> <span class="line" id="L1016"> <span class="tok-comment">// First we compress into in.</span> </span> <span class="line" id="L1017"> <span class="tok-kw">var</span> in: [in_batch_size]<span class="tok-type">u16</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1018"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..in_batch_size) \|i\| {</span> <span class="line" id="L1019"> <span class="tok-comment">// Compress_q(x, d) = ⌈(2ᵈ/q)x⌋ mod⁺ 2ᵈ</span> </span> <span class="line" id="L1020"> <span class="tok-comment">// = ⌊(2ᵈ/q)x+½⌋ mod⁺ 2ᵈ</span> </span> <span class="line" id="L1021"> <span class="tok-comment">// = ⌊((x << d) + q/2) / q⌋ mod⁺ 2ᵈ</span> </span> <span class="line" id="L1022"> <span class="tok-comment">// = DIV((x << d) + q/2, q) & ((1<<d) - 1)</span> </span> <span class="line" id="L1023"> <span class="tok-kw">const</span> t = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(p.cs[in_off + i])) << d;</span> <span class="line" id="L1024"> in[i] = <span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, <span class="tok-builtin">@intCast</span>(<span class="tok-builtin">@divFloor</span>(t + q_over_2, Q) & two_d_min_1));</span> <span class="line" id="L1025"> }</span> <span class="line" id="L1026"></span> <span class="line" id="L1027"> <span class="tok-comment">// Now we pack the d-bit integers from `in' into out as bytes.</span> </span> <span class="line" id="L1028"> <span class="tok-kw">comptime</span> <span class="tok-kw">var</span> in_shift: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L1029"> <span class="tok-kw">comptime</span> <span class="tok-kw">var</span> j: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L1030"> <span class="tok-kw">comptime</span> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L1031"> <span class="tok-kw">inline</span> <span class="tok-kw">while</span> (i < in_batch_size) : (j += <span class="tok-number">1</span>) {</span> <span class="line" id="L1032"> <span class="tok-kw">comptime</span> <span class="tok-kw">var</span> todo: <span class="tok-type">usize</span> = <span class="tok-number">8</span>;</span> <span class="line" id="L1033"> <span class="tok-kw">inline</span> <span class="tok-kw">while</span> (todo > <span class="tok-number">0</span>) {</span> <span class="line" id="L1034"> <span class="tok-kw">const</span> out_shift = <span class="tok-kw">comptime</span> <span class="tok-number">8</span> - todo;</span> <span class="line" id="L1035"> out[out_off + j] \|= <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((in[i] >> in_shift) << out_shift));</span> <span class="line" id="L1036"></span> <span class="line" id="L1037"> <span class="tok-kw">const</span> done = <span class="tok-kw">comptime</span> <span class="tok-builtin">@min</span>(<span class="tok-builtin">@min</span>(d, todo), d - in_shift);</span> <span class="line" id="L1038"> todo -= done;</span> <span class="line" id="L1039"> in_shift += done;</span> <span class="line" id="L1040"></span> <span class="line" id="L1041"> <span class="tok-kw">if</span> (in_shift == d) {</span> <span class="line" id="L1042"> in_shift = <span class="tok-number">0</span>;</span> <span class="line" id="L1043"> i += <span class="tok-number">1</span>;</span> <span class="line" id="L1044"> }</span> <span class="line" id="L1045"> }</span> <span class="line" id="L1046"> }</span> <span class="line" id="L1047"></span> <span class="line" id="L1048"> in_off += in_batch_size;</span> <span class="line" id="L1049"> out_off += out_batch_size;</span> <span class="line" id="L1050"> }</span> <span class="line" id="L1051"></span> <span class="line" id="L1052"> <span class="tok-kw">return</span> out;</span> <span class="line" id="L1053"> }</span> <span class="line" id="L1054"></span> <span class="line" id="L1055"> <span class="tok-comment">// Set p to Decompress_q(m, d).</span> </span> <span class="line" id="L1056"> <span class="tok-kw">fn</span> <span class="tok-fn">decompress</span>(<span class="tok-kw">comptime</span> d: <span class="tok-type">u8</span>, in: <span class="tok-kw">const</span> [compressedSize(d)]<span class="tok-type">u8</span>) Poly {</span> <span class="line" id="L1057"> <span class="tok-builtin">@setEvalBranchQuota</span>(<span class="tok-number">10000</span>);</span> <span class="line" id="L1058"> <span class="tok-kw">const</span> inLen = <span class="tok-kw">comptime</span> <span class="tok-builtin">@divTrunc</span>(N d, <span class="tok-number">8</span>);</span> <span class="line" id="L1059"> <span class="tok-kw">comptime</span> assert(inLen * <span class="tok-number">8</span> == d * N);</span> <span class="line" id="L1060"> <span class="tok-kw">var</span> ret: Poly = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1061"> <span class="tok-kw">var</span> in_off: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L1062"> <span class="tok-kw">var</span> out_off: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L1063"></span> <span class="line" id="L1064"> <span class="tok-kw">const</span> batch_size: <span class="tok-type">usize</span> = <span class="tok-kw">comptime</span> lcm(<span class="tok-builtin">@as</span>(<span class="tok-type">i16</span>, d), <span class="tok-number">8</span>);</span> <span class="line" id="L1065"> <span class="tok-kw">const</span> in_batch_size: <span class="tok-type">usize</span> = <span class="tok-kw">comptime</span> batch_size / <span class="tok-number">8</span>;</span> <span class="line" id="L1066"> <span class="tok-kw">const</span> out_batch_size: <span class="tok-type">usize</span> = <span class="tok-kw">comptime</span> batch_size / d;</span> <span class="line" id="L1067"></span> <span class="line" id="L1068"> <span class="tok-kw">while</span> (out_off < N) {</span> <span class="line" id="L1069"> <span class="tok-kw">comptime</span> <span class="tok-kw">var</span> in_shift: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L1070"> <span class="tok-kw">comptime</span> <span class="tok-kw">var</span> j: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L1071"> <span class="tok-kw">comptime</span> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L1072"> <span class="tok-kw">inline</span> <span class="tok-kw">while</span> (i < out_batch_size) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L1073"> <span class="tok-comment">// First, unpack next coefficient.</span> </span> <span class="line" id="L1074"> <span class="tok-kw">comptime</span> <span class="tok-kw">var</span> todo = d;</span> <span class="line" id="L1075"> <span class="tok-kw">var</span> out: <span class="tok-type">u16</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L1076"></span> <span class="line" id="L1077"> <span class="tok-kw">inline</span> <span class="tok-kw">while</span> (todo > <span class="tok-number">0</span>) {</span> <span class="line" id="L1078"> <span class="tok-kw">const</span> out_shift = <span class="tok-kw">comptime</span> d - todo;</span> <span class="line" id="L1079"> <span class="tok-kw">const</span> m = <span class="tok-kw">comptime</span> (<span class="tok-number">1</span> << d) - <span class="tok-number">1</span>;</span> <span class="line" id="L1080"> out \|= (<span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, in[in_off + j] >> in_shift) << out_shift) & m;</span> <span class="line" id="L1081"></span> <span class="line" id="L1082"> <span class="tok-kw">const</span> done = <span class="tok-kw">comptime</span> <span class="tok-builtin">@min</span>(<span class="tok-builtin">@min</span>(<span class="tok-number">8</span>, todo), <span class="tok-number">8</span> - in_shift);</span> <span class="line" id="L1083"> todo -= done;</span> <span class="line" id="L1084"> in_shift += done;</span> <span class="line" id="L1085"></span> <span class="line" id="L1086"> <span class="tok-kw">if</span> (in_shift == <span class="tok-number">8</span>) {</span> <span class="line" id="L1087"> in_shift = <span class="tok-number">0</span>;</span> <span class="line" id="L1088"> j += <span class="tok-number">1</span>;</span> <span class="line" id="L1089"> }</span> <span class="line" id="L1090"> }</span> <span class="line" id="L1091"></span> <span class="line" id="L1092"> <span class="tok-comment">// Decompress_q(x, d) = ⌈(q/2ᵈ)x⌋</span> </span> <span class="line" id="L1093"> <span class="tok-comment">// = ⌊(q/2ᵈ)x+½⌋</span> </span> <span class="line" id="L1094"> <span class="tok-comment">// = ⌊(qx + 2ᵈ⁻¹)/2ᵈ⌋</span> </span> <span class="line" id="L1095"> <span class="tok-comment">// = (qx + (1<<(d-1))) >> d</span> </span> <span class="line" id="L1096"> <span class="tok-kw">const</span> qx = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, out) * <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, Q);</span> <span class="line" id="L1097"> ret.cs[out_off + i] = <span class="tok-builtin">@as</span>(<span class="tok-type">i16</span>, <span class="tok-builtin">@intCast</span>((qx + (<span class="tok-number">1</span> << (d - <span class="tok-number">1</span>))) >> d));</span> <span class="line" id="L1098"> }</span> <span class="line" id="L1099"></span> <span class="line" id="L1100"> in_off += in_batch_size;</span> <span class="line" id="L1101"> out_off += out_batch_size;</span> <span class="line" id="L1102"> }</span> <span class="line" id="L1103"></span> <span class="line" id="L1104"> <span class="tok-kw">return</span> ret;</span> <span class="line" id="L1105"> }</span> <span class="line" id="L1106"></span> <span class="line" id="L1107"> <span class="tok-comment">// Returns the "pointwise" multiplication a o b.</span> </span> <span class="line" id="L1108"> <span class="tok-comment">//</span> </span> <span class="line" id="L1109"> <span class="tok-comment">// That is: invNTT(a o b) = invNTT(a) * invNTT(b). Assumes a and b are in</span> </span> <span class="line" id="L1110"> <span class="tok-comment">// Montgomery form. Products between coefficients of a and b must be strictly</span> </span> <span class="line" id="L1111"> <span class="tok-comment">// bounded in absolute value by 2¹⁵q. a o b will be in Montgomery form and</span> </span> <span class="line" id="L1112"> <span class="tok-comment">// bounded in absolute value by 2q.</span> </span> <span class="line" id="L1113"> <span class="tok-kw">fn</span> <span class="tok-fn">mulHat</span>(a: Poly, b: Poly) Poly {</span> <span class="line" id="L1114"> <span class="tok-comment">// Recall from the discussion in ntt(), that a transformed polynomial is</span> </span> <span class="line" id="L1115"> <span class="tok-comment">// an element of ℤ_q[x]/(x²-ζ) x … x ℤ_q[x]/(x²+ζ¹²⁷);</span> </span> <span class="line" id="L1116"> <span class="tok-comment">// that is: 128 degree-one polynomials instead of simply 256 elements</span> </span> <span class="line" id="L1117"> <span class="tok-comment">// from ℤ_q as in the regular NTT. So instead of pointwise multiplication,</span> </span> <span class="line" id="L1118"> <span class="tok-comment">// we multiply the 128 pairs of degree-one polynomials modulo the</span> </span> <span class="line" id="L1119"> <span class="tok-comment">// right equation:</span> </span> <span class="line" id="L1120"> <span class="tok-comment">//</span> </span> <span class="line" id="L1121"> <span class="tok-comment">// (a₁ + a₂x)(b₁ + b₂x) = a₁b₁ + a₂b₂ζ' + (a₁b₂ + a₂b₁)x,</span> </span> <span class="line" id="L1122"> <span class="tok-comment">//</span> </span> <span class="line" id="L1123"> <span class="tok-comment">// where ζ' is the appropriate power of ζ.</span> </span> <span class="line" id="L1124"></span> <span class="line" id="L1125"> <span class="tok-kw">var</span> p: Poly = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1126"> <span class="tok-kw">var</span> k: <span class="tok-type">usize</span> = <span class="tok-number">64</span>;</span> <span class="line" id="L1127"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L1128"> <span class="tok-kw">while</span> (i < N) : (i += <span class="tok-number">4</span>) {</span> <span class="line" id="L1129"> <span class="tok-kw">const</span> z = <span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, zetas[k]);</span> <span class="line" id="L1130"> k += <span class="tok-number">1</span>;</span> <span class="line" id="L1131"></span> <span class="line" id="L1132"> <span class="tok-kw">const</span> a1b1 = montReduce(<span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, a.cs[i + <span class="tok-number">1</span>]) * <span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, b.cs[i + <span class="tok-number">1</span>]));</span> <span class="line" id="L1133"> <span class="tok-kw">const</span> a0b0 = montReduce(<span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, a.cs[i]) * <span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, b.cs[i]));</span> <span class="line" id="L1134"> <span class="tok-kw">const</span> a1b0 = montReduce(<span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, a.cs[i + <span class="tok-number">1</span>]) * <span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, b.cs[i]));</span> <span class="line" id="L1135"> <span class="tok-kw">const</span> a0b1 = montReduce(<span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, a.cs[i]) * <span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, b.cs[i + <span class="tok-number">1</span>]));</span> <span class="line" id="L1136"></span> <span class="line" id="L1137"> p.cs[i] = montReduce(a1b1 * z) + a0b0;</span> <span class="line" id="L1138"> p.cs[i + <span class="tok-number">1</span>] = a0b1 + a1b0;</span> <span class="line" id="L1139"></span> <span class="line" id="L1140"> <span class="tok-kw">const</span> a3b3 = montReduce(<span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, a.cs[i + <span class="tok-number">3</span>]) * <span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, b.cs[i + <span class="tok-number">3</span>]));</span> <span class="line" id="L1141"> <span class="tok-kw">const</span> a2b2 = montReduce(<span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, a.cs[i + <span class="tok-number">2</span>]) * <span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, b.cs[i + <span class="tok-number">2</span>]));</span> <span class="line" id="L1142"> <span class="tok-kw">const</span> a3b2 = montReduce(<span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, a.cs[i + <span class="tok-number">3</span>]) * <span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, b.cs[i + <span class="tok-number">2</span>]));</span> <span class="line" id="L1143"> <span class="tok-kw">const</span> a2b3 = montReduce(<span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, a.cs[i + <span class="tok-number">2</span>]) * <span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, b.cs[i + <span class="tok-number">3</span>]));</span> <span class="line" id="L1144"></span> <span class="line" id="L1145"> p.cs[i + <span class="tok-number">2</span>] = a2b2 - montReduce(a3b3 * z);</span> <span class="line" id="L1146"> p.cs[i + <span class="tok-number">3</span>] = a2b3 + a3b2;</span> <span class="line" id="L1147"> }</span> <span class="line" id="L1148"></span> <span class="line" id="L1149"> <span class="tok-kw">return</span> p;</span> <span class="line" id="L1150"> }</span> <span class="line" id="L1151"></span> <span class="line" id="L1152"> <span class="tok-comment">// Sample p from a centered binomial distribution with n=2η and p=½ - viz:</span> </span> <span class="line" id="L1153"> <span class="tok-comment">// coefficients are in {-η, …, η} with probabilities</span> </span> <span class="line" id="L1154"> <span class="tok-comment">//</span> </span> <span class="line" id="L1155"> <span class="tok-comment">// {ncr(0, 2η)/2^2η, ncr(1, 2η)/2^2η, …, ncr(2η,2η)/2^2η}</span> </span> <span class="line" id="L1156"> <span class="tok-kw">fn</span> <span class="tok-fn">noise</span>(<span class="tok-kw">comptime</span> eta: <span class="tok-type">u8</span>, nonce: <span class="tok-type">u8</span>, seed: <span class="tok-kw">const</span> [<span class="tok-number">32</span>]<span class="tok-type">u8</span>) Poly {</span> <span class="line" id="L1157"> <span class="tok-kw">var</span> h = sha3.Shake256.init(.{});</span> <span class="line" id="L1158"> <span class="tok-kw">const</span> suffix: [<span class="tok-number">1</span>]<span class="tok-type">u8</span> = .{nonce};</span> <span class="line" id="L1159"> h.update(seed);</span> <span class="line" id="L1160"> h.update(&suffix);</span> <span class="line" id="L1161"></span> <span class="line" id="L1162"> <span class="tok-comment">// The distribution at hand is exactly the same as that</span> </span> <span class="line" id="L1163"> <span class="tok-comment">// of (a₁ + a₂ + … + a_η) - (b₁ + … + b_η) where a_i,b_i~U(1).</span> </span> <span class="line" id="L1164"> <span class="tok-comment">// Thus we need 2η bits per coefficient.</span> </span> <span class="line" id="L1165"> <span class="tok-kw">const</span> buf_len = <span class="tok-kw">comptime</span> <span class="tok-number">2</span> eta * N / <span class="tok-number">8</span>;</span> <span class="line" id="L1166"> <span class="tok-kw">var</span> buf: [buf_len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1167"> h.squeeze(&buf);</span> <span class="line" id="L1168"></span> <span class="line" id="L1169"> <span class="tok-comment">// buf is interpreted as a₁…a_ηb₁…b_ηa₁…a_ηb₁…b_η…. We process</span> </span> <span class="line" id="L1170"> <span class="tok-comment">// multiple coefficients in one batch.</span> </span> <span class="line" id="L1171"></span> <span class="line" id="L1172"> <span class="tok-kw">const</span> T = <span class="tok-kw">switch</span> (builtin.target.cpu.arch) {</span> <span class="line" id="L1173"> .x86_64, .x86 => <span class="tok-type">u32</span>, <span class="tok-comment">// Generates better code on Intel CPUs</span> </span> <span class="line" id="L1174"> <span class="tok-kw">else</span> => <span class="tok-type">u64</span>, <span class="tok-comment">// u128 might be faster on some other CPUs.</span> </span> <span class="line" id="L1175"> };</span> <span class="line" id="L1176"></span> <span class="line" id="L1177"> <span class="tok-kw">comptime</span> <span class="tok-kw">var</span> batch_count: <span class="tok-type">usize</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1178"> <span class="tok-kw">comptime</span> <span class="tok-kw">var</span> batch_bytes: <span class="tok-type">usize</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1179"> <span class="tok-kw">comptime</span> <span class="tok-kw">var</span> mask: T = <span class="tok-number">0</span>;</span> <span class="line" id="L1180"> <span class="tok-kw">comptime</span> {</span> <span class="line" id="L1181"> batch_count = <span class="tok-builtin">@bitSizeOf</span>(T) / <span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-number">2</span> * eta);</span> <span class="line" id="L1182"> <span class="tok-kw">while</span> (<span class="tok-builtin">@rem</span>(N, batch_count) != <span class="tok-number">0</span> <span class="tok-kw">and</span> batch_count > <span class="tok-number">0</span>) : (batch_count -= <span class="tok-number">1</span>) {}</span> <span class="line" id="L1183"> assert(batch_count > <span class="tok-number">0</span>);</span> <span class="line" id="L1184"> assert(<span class="tok-builtin">@rem</span>(<span class="tok-number">2</span> * eta * batch_count, <span class="tok-number">8</span>) == <span class="tok-number">0</span>);</span> <span class="line" id="L1185"> batch_bytes = <span class="tok-number">2</span> * eta * batch_count / <span class="tok-number">8</span>;</span> <span class="line" id="L1186"></span> <span class="line" id="L1187"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..<span class="tok-number">2</span> * eta * batch_count) \|_\| {</span> <span class="line" id="L1188"> mask <<= eta;</span> <span class="line" id="L1189"> mask \|= <span class="tok-number">1</span>;</span> <span class="line" id="L1190"> }</span> <span class="line" id="L1191"> }</span> <span class="line" id="L1192"></span> <span class="line" id="L1193"> <span class="tok-kw">var</span> ret: Poly = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1194"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..<span class="tok-kw">comptime</span> N / batch_count) \|i\| {</span> <span class="line" id="L1195"> <span class="tok-comment">// Read coefficients into t. In the case of η=3,</span> </span> <span class="line" id="L1196"> <span class="tok-comment">// we have t = a₁ + 2a₂ + 4a₃ + 8b₁ + 16b₂ + …</span> </span> <span class="line" id="L1197"> <span class="tok-kw">var</span> t: T = <span class="tok-number">0</span>;</span> <span class="line" id="L1198"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..batch_bytes) \|j\| {</span> <span class="line" id="L1199"> t \|= <span class="tok-builtin">@as</span>(T, buf[batch_bytes * i + j]) << (<span class="tok-number">8</span> * j);</span> <span class="line" id="L1200"> }</span> <span class="line" id="L1201"></span> <span class="line" id="L1202"> <span class="tok-comment">// Accumelate `a's and `b's together by masking them out, shifting</span> </span> <span class="line" id="L1203"> <span class="tok-comment">// and adding. For η=3, we have d = a₁ + a₂ + a₃ + 8(b₁ + b₂ + b₃) + …</span> </span> <span class="line" id="L1204"> <span class="tok-kw">var</span> d: T = <span class="tok-number">0</span>;</span> <span class="line" id="L1205"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..eta) \|j\| {</span> <span class="line" id="L1206"> d += (t >> j) & mask;</span> <span class="line" id="L1207"> }</span> <span class="line" id="L1208"></span> <span class="line" id="L1209"> <span class="tok-comment">// Extract each a and b separately and set coefficient in polynomial.</span> </span> <span class="line" id="L1210"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..batch_count) \|j\| {</span> <span class="line" id="L1211"> <span class="tok-kw">const</span> mask2 = <span class="tok-kw">comptime</span> (<span class="tok-number">1</span> << eta) - <span class="tok-number">1</span>;</span> <span class="line" id="L1212"> <span class="tok-kw">const</span> a = <span class="tok-builtin">@as</span>(<span class="tok-type">i16</span>, <span class="tok-builtin">@intCast</span>((d >> (<span class="tok-kw">comptime</span> (<span class="tok-number">2</span> * j * eta))) & mask2));</span> <span class="line" id="L1213"> <span class="tok-kw">const</span> b = <span class="tok-builtin">@as</span>(<span class="tok-type">i16</span>, <span class="tok-builtin">@intCast</span>((d >> (<span class="tok-kw">comptime</span> ((<span class="tok-number">2</span> * j + <span class="tok-number">1</span>) * eta))) & mask2));</span> <span class="line" id="L1214"> ret.cs[batch_count * i + j] = a - b;</span> <span class="line" id="L1215"> }</span> <span class="line" id="L1216"> }</span> <span class="line" id="L1217"></span> <span class="line" id="L1218"> <span class="tok-kw">return</span> ret;</span> <span class="line" id="L1219"> }</span> <span class="line" id="L1220"></span> <span class="line" id="L1221"> <span class="tok-comment">// Sample p uniformly from the given seed and x and y coordinates.</span> </span> <span class="line" id="L1222"> <span class="tok-kw">fn</span> <span class="tok-fn">uniform</span>(seed: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>, x: <span class="tok-type">u8</span>, y: <span class="tok-type">u8</span>) Poly {</span> <span class="line" id="L1223"> <span class="tok-kw">var</span> h = sha3.Shake128.init(.{});</span> <span class="line" id="L1224"> <span class="tok-kw">const</span> suffix: [<span class="tok-number">2</span>]<span class="tok-type">u8</span> = .{ x, y };</span> <span class="line" id="L1225"> h.update(&seed);</span> <span class="line" id="L1226"> h.update(&suffix);</span> <span class="line" id="L1227"></span> <span class="line" id="L1228"> <span class="tok-kw">const</span> buf_len = sha3.Shake128.block_length; <span class="tok-comment">// rate SHAKE-128</span> </span> <span class="line" id="L1229"> <span class="tok-kw">var</span> buf: [buf_len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1230"></span> <span class="line" id="L1231"> <span class="tok-kw">var</span> ret: Poly = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1232"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>; <span class="tok-comment">// index into ret.cs</span> </span> <span class="line" id="L1233"> outer: <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L1234"> h.squeeze(&buf);</span> <span class="line" id="L1235"></span> <span class="line" id="L1236"> <span class="tok-kw">var</span> j: <span class="tok-type">usize</span> = <span class="tok-number">0</span>; <span class="tok-comment">// index into buf</span> </span> <span class="line" id="L1237"> <span class="tok-kw">while</span> (j < buf_len) : (j += <span class="tok-number">3</span>) {</span> <span class="line" id="L1238"> <span class="tok-kw">const</span> b0 = <span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, buf[j]);</span> <span class="line" id="L1239"> <span class="tok-kw">const</span> b1 = <span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, buf[j + <span class="tok-number">1</span>]);</span> <span class="line" id="L1240"> <span class="tok-kw">const</span> b2 = <span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, buf[j + <span class="tok-number">2</span>]);</span> <span class="line" id="L1241"></span> <span class="line" id="L1242"> <span class="tok-kw">const</span> ts: [<span class="tok-number">2</span>]<span class="tok-type">u16</span> = .{</span> <span class="line" id="L1243"> b0 \| ((b1 & <span class="tok-number">0xf</span>) << <span class="tok-number">8</span>),</span> <span class="line" id="L1244"> (b1 >> <span class="tok-number">4</span>) \| (b2 << <span class="tok-number">4</span>),</span> <span class="line" id="L1245"> };</span> <span class="line" id="L1246"></span> <span class="line" id="L1247"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (ts) \|t\| {</span> <span class="line" id="L1248"> <span class="tok-kw">if</span> (t < Q) {</span> <span class="line" id="L1249"> ret.cs[i] = <span class="tok-builtin">@as</span>(<span class="tok-type">i16</span>, <span class="tok-builtin">@intCast</span>(t));</span> <span class="line" id="L1250"> i += <span class="tok-number">1</span>;</span> <span class="line" id="L1251"></span> <span class="line" id="L1252"> <span class="tok-kw">if</span> (i == N) {</span> <span class="line" id="L1253"> <span class="tok-kw">break</span> :outer;</span> <span class="line" id="L1254"> }</span> <span class="line" id="L1255"> }</span> <span class="line" id="L1256"> }</span> <span class="line" id="L1257"> }</span> <span class="line" id="L1258"> }</span> <span class="line" id="L1259"></span> <span class="line" id="L1260"> <span class="tok-kw">return</span> ret;</span> <span class="line" id="L1261"> }</span> <span class="line" id="L1262"></span> <span class="line" id="L1263"> <span class="tok-comment">// Packs p.</span> </span> <span class="line" id="L1264"> <span class="tok-comment">//</span> </span> <span class="line" id="L1265"> <span class="tok-comment">// Assumes p is normalized (and not just Barrett reduced).</span> </span> <span class="line" id="L1266"> <span class="tok-kw">fn</span> <span class="tok-fn">toBytes</span>(p: Poly) [bytes_length]<span class="tok-type">u8</span> {</span> <span class="line" id="L1267"> <span class="tok-kw">var</span> ret: [bytes_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1268"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..<span class="tok-kw">comptime</span> N / <span class="tok-number">2</span>) \|i\| {</span> <span class="line" id="L1269"> <span class="tok-kw">const</span> t0 = <span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, <span class="tok-builtin">@intCast</span>(p.cs[<span class="tok-number">2</span> * i]));</span> <span class="line" id="L1270"> <span class="tok-kw">const</span> t1 = <span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, <span class="tok-builtin">@intCast</span>(p.cs[<span class="tok-number">2</span> * i + <span class="tok-number">1</span>]));</span> <span class="line" id="L1271"> ret[<span class="tok-number">3</span> * i] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>(t0));</span> <span class="line" id="L1272"> ret[<span class="tok-number">3</span> * i + <span class="tok-number">1</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((t0 >> <span class="tok-number">8</span>) \| (t1 << <span class="tok-number">4</span>)));</span> <span class="line" id="L1273"> ret[<span class="tok-number">3</span> * i + <span class="tok-number">2</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>(t1 >> <span class="tok-number">4</span>));</span> <span class="line" id="L1274"> }</span> <span class="line" id="L1275"> <span class="tok-kw">return</span> ret;</span> <span class="line" id="L1276"> }</span> <span class="line" id="L1277"></span> <span class="line" id="L1278"> <span class="tok-comment">// Unpacks a Poly from buf.</span> </span> <span class="line" id="L1279"> <span class="tok-comment">//</span> </span> <span class="line" id="L1280"> <span class="tok-comment">// p will not be normalized; instead 0 ≤ p[i] < 4096.</span> </span> <span class="line" id="L1281"> <span class="tok-kw">fn</span> <span class="tok-fn">fromBytes</span>(buf: <span class="tok-kw">const</span> [bytes_length]<span class="tok-type">u8</span>) Poly {</span> <span class="line" id="L1282"> <span class="tok-kw">var</span> ret: Poly = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1283"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..<span class="tok-kw">comptime</span> N / <span class="tok-number">2</span>) \|i\| {</span> <span class="line" id="L1284"> <span class="tok-kw">const</span> b0 = <span class="tok-builtin">@as</span>(<span class="tok-type">i16</span>, buf[<span class="tok-number">3</span> i]);</span> <span class="line" id="L1285"> <span class="tok-kw">const</span> b1 = <span class="tok-builtin">@as</span>(<span class="tok-type">i16</span>, buf[<span class="tok-number">3</span> * i + <span class="tok-number">1</span>]);</span> <span class="line" id="L1286"> <span class="tok-kw">const</span> b2 = <span class="tok-builtin">@as</span>(<span class="tok-type">i16</span>, buf[<span class="tok-number">3</span> * i + <span class="tok-number">2</span>]);</span> <span class="line" id="L1287"> ret.cs[<span class="tok-number">2</span> * i] = b0 \| ((b1 & <span class="tok-number">0xf</span>) << <span class="tok-number">8</span>);</span> <span class="line" id="L1288"> ret.cs[<span class="tok-number">2</span> * i + <span class="tok-number">1</span>] = (b1 >> <span class="tok-number">4</span>) \| b2 << <span class="tok-number">4</span>;</span> <span class="line" id="L1289"> }</span> <span class="line" id="L1290"> <span class="tok-kw">return</span> ret;</span> <span class="line" id="L1291"> }</span> <span class="line" id="L1292">};</span> <span class="line" id="L1293"></span> <span class="line" id="L1294"><span class="tok-comment">// A vector of K polynomials.</span> </span> <span class="line" id="L1295"><span class="tok-kw">fn</span> <span class="tok-fn">Vec</span>(<span class="tok-kw">comptime</span> K: <span class="tok-type">u8</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L1296"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L1297"> ps: [K]Poly,</span> <span class="line" id="L1298"></span> <span class="line" id="L1299"> <span class="tok-kw">const</span> Self = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L1300"> <span class="tok-kw">const</span> bytes_length = K * Poly.bytes_length;</span> <span class="line" id="L1301"></span> <span class="line" id="L1302"> <span class="tok-kw">fn</span> <span class="tok-fn">compressedSize</span>(<span class="tok-kw">comptime</span> d: <span class="tok-type">u8</span>) <span class="tok-type">usize</span> {</span> <span class="line" id="L1303"> <span class="tok-kw">return</span> Poly.compressedSize(d) * K;</span> <span class="line" id="L1304"> }</span> <span class="line" id="L1305"></span> <span class="line" id="L1306"> <span class="tok-kw">fn</span> <span class="tok-fn">ntt</span>(a: Self) Self {</span> <span class="line" id="L1307"> <span class="tok-kw">var</span> ret: Self = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1308"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..K) \|i\| {</span> <span class="line" id="L1309"> ret.ps[i] = a.ps[i].ntt();</span> <span class="line" id="L1310"> }</span> <span class="line" id="L1311"> <span class="tok-kw">return</span> ret;</span> <span class="line" id="L1312"> }</span> <span class="line" id="L1313"></span> <span class="line" id="L1314"> <span class="tok-kw">fn</span> <span class="tok-fn">invNTT</span>(a: Self) Self {</span> <span class="line" id="L1315"> <span class="tok-kw">var</span> ret: Self = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1316"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..K) \|i\| {</span> <span class="line" id="L1317"> ret.ps[i] = a.ps[i].invNTT();</span> <span class="line" id="L1318"> }</span> <span class="line" id="L1319"> <span class="tok-kw">return</span> ret;</span> <span class="line" id="L1320"> }</span> <span class="line" id="L1321"></span> <span class="line" id="L1322"> <span class="tok-kw">fn</span> <span class="tok-fn">normalize</span>(a: Self) Self {</span> <span class="line" id="L1323"> <span class="tok-kw">var</span> ret: Self = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1324"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..K) \|i\| {</span> <span class="line" id="L1325"> ret.ps[i] = a.ps[i].normalize();</span> <span class="line" id="L1326"> }</span> <span class="line" id="L1327"> <span class="tok-kw">return</span> ret;</span> <span class="line" id="L1328"> }</span> <span class="line" id="L1329"></span> <span class="line" id="L1330"> <span class="tok-kw">fn</span> <span class="tok-fn">barrettReduce</span>(a: Self) Self {</span> <span class="line" id="L1331"> <span class="tok-kw">var</span> ret: Self = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1332"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..K) \|i\| {</span> <span class="line" id="L1333"> ret.ps[i] = a.ps[i].barrettReduce();</span> <span class="line" id="L1334"> }</span> <span class="line" id="L1335"> <span class="tok-kw">return</span> ret;</span> <span class="line" id="L1336"> }</span> <span class="line" id="L1337"></span> <span class="line" id="L1338"> <span class="tok-kw">fn</span> <span class="tok-fn">add</span>(a: Self, b: Self) Self {</span> <span class="line" id="L1339"> <span class="tok-kw">var</span> ret: Self = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1340"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..K) \|i\| {</span> <span class="line" id="L1341"> ret.ps[i] = a.ps[i].add(b.ps[i]);</span> <span class="line" id="L1342"> }</span> <span class="line" id="L1343"> <span class="tok-kw">return</span> ret;</span> <span class="line" id="L1344"> }</span> <span class="line" id="L1345"></span> <span class="line" id="L1346"> <span class="tok-kw">fn</span> <span class="tok-fn">sub</span>(a: Self, b: Self) Self {</span> <span class="line" id="L1347"> <span class="tok-kw">var</span> ret: Self = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1348"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..K) \|i\| {</span> <span class="line" id="L1349"> ret.ps[i] = a.ps[i].sub(b.ps[i]);</span> <span class="line" id="L1350"> }</span> <span class="line" id="L1351"> <span class="tok-kw">return</span> ret;</span> <span class="line" id="L1352"> }</span> <span class="line" id="L1353"></span> <span class="line" id="L1354"> <span class="tok-comment">// Samples v[i] from centered binomial distribution with the given η,</span> </span> <span class="line" id="L1355"> <span class="tok-comment">// seed and nonce+i.</span> </span> <span class="line" id="L1356"> <span class="tok-kw">fn</span> <span class="tok-fn">noise</span>(<span class="tok-kw">comptime</span> eta: <span class="tok-type">u8</span>, nonce: <span class="tok-type">u8</span>, seed: <span class="tok-kw">const</span> [<span class="tok-number">32</span>]<span class="tok-type">u8</span>) Self {</span> <span class="line" id="L1357"> <span class="tok-kw">var</span> ret: Self = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1358"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..K) \|i\| {</span> <span class="line" id="L1359"> ret.ps[i] = Poly.noise(eta, nonce + <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>(i)), seed);</span> <span class="line" id="L1360"> }</span> <span class="line" id="L1361"> <span class="tok-kw">return</span> ret;</span> <span class="line" id="L1362"> }</span> <span class="line" id="L1363"></span> <span class="line" id="L1364"> <span class="tok-comment">// Sets p to the inner product of a and b using "pointwise" multiplication.</span> </span> <span class="line" id="L1365"> <span class="tok-comment">//</span> </span> <span class="line" id="L1366"> <span class="tok-comment">// See MulHat() and NTT() for a description of the multiplication.</span> </span> <span class="line" id="L1367"> <span class="tok-comment">// Assumes a and b are in Montgomery form. p will be in Montgomery form,</span> </span> <span class="line" id="L1368"> <span class="tok-comment">// and its coefficients will be bounded in absolute value by 2kq.</span> </span> <span class="line" id="L1369"> <span class="tok-comment">// If a and b are not in Montgomery form, then the action is the same</span> </span> <span class="line" id="L1370"> <span class="tok-comment">// as "pointwise" multiplication followed by multiplying by R⁻¹, the inverse</span> </span> <span class="line" id="L1371"> <span class="tok-comment">// of the Montgomery factor.</span> </span> <span class="line" id="L1372"> <span class="tok-kw">fn</span> <span class="tok-fn">dotHat</span>(a: Self, b: Self) Poly {</span> <span class="line" id="L1373"> <span class="tok-kw">var</span> ret: Poly = Poly.zero;</span> <span class="line" id="L1374"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..K) \|i\| {</span> <span class="line" id="L1375"> ret = ret.add(a.ps[i].mulHat(b.ps[i]));</span> <span class="line" id="L1376"> }</span> <span class="line" id="L1377"> <span class="tok-kw">return</span> ret;</span> <span class="line" id="L1378"> }</span> <span class="line" id="L1379"></span> <span class="line" id="L1380"> <span class="tok-kw">fn</span> <span class="tok-fn">compress</span>(v: Self, <span class="tok-kw">comptime</span> d: <span class="tok-type">u8</span>) [compressedSize(d)]<span class="tok-type">u8</span> {</span> <span class="line" id="L1381"> <span class="tok-kw">const</span> cs = <span class="tok-kw">comptime</span> Poly.compressedSize(d);</span> <span class="line" id="L1382"> <span class="tok-kw">var</span> ret: [compressedSize(d)]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1383"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..K) \|i\| {</span> <span class="line" id="L1384"> ret[i cs .. (i + <span class="tok-number">1</span>) * cs].* = v.ps[i].compress(d);</span> <span class="line" id="L1385"> }</span> <span class="line" id="L1386"> <span class="tok-kw">return</span> ret;</span> <span class="line" id="L1387"> }</span> <span class="line" id="L1388"></span> <span class="line" id="L1389"> <span class="tok-kw">fn</span> <span class="tok-fn">decompress</span>(<span class="tok-kw">comptime</span> d: <span class="tok-type">u8</span>, buf: <span class="tok-kw">const</span> [compressedSize(d)]<span class="tok-type">u8</span>) Self {</span> <span class="line" id="L1390"> <span class="tok-kw">const</span> cs = <span class="tok-kw">comptime</span> Poly.compressedSize(d);</span> <span class="line" id="L1391"> <span class="tok-kw">var</span> ret: Self = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1392"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..K) \|i\| {</span> <span class="line" id="L1393"> ret.ps[i] = Poly.decompress(d, buf[i cs .. (i + <span class="tok-number">1</span>) * cs]);</span> <span class="line" id="L1394"> }</span> <span class="line" id="L1395"> <span class="tok-kw">return</span> ret;</span> <span class="line" id="L1396"> }</span> <span class="line" id="L1397"></span> <span class="line" id="L1398"> <span class="tok-comment">/// Serializes the key into a byte array.</span></span> <span class="line" id="L1399"> <span class="tok-kw">fn</span> <span class="tok-fn">toBytes</span>(v: Self) [bytes_length]<span class="tok-type">u8</span> {</span> <span class="line" id="L1400"> <span class="tok-kw">var</span> ret: [bytes_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1401"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..K) \|i\| {</span> <span class="line" id="L1402"> ret[i * Poly.bytes_length .. (i + <span class="tok-number">1</span>) * Poly.bytes_length].* = v.ps[i].toBytes();</span> <span class="line" id="L1403"> }</span> <span class="line" id="L1404"> <span class="tok-kw">return</span> ret;</span> <span class="line" id="L1405"> }</span> <span class="line" id="L1406"></span> <span class="line" id="L1407"> <span class="tok-comment">/// Deserializes the key from a byte array.</span></span> <span class="line" id="L1408"> <span class="tok-kw">fn</span> <span class="tok-fn">fromBytes</span>(buf: <span class="tok-kw">const</span> [bytes_length]<span class="tok-type">u8</span>) Self {</span> <span class="line" id="L1409"> <span class="tok-kw">var</span> ret: Self = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1410"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..K) \|i\| {</span> <span class="line" id="L1411"> ret.ps[i] = Poly.fromBytes(</span> <span class="line" id="L1412"> buf[i Poly.bytes_length .. (i + <span class="tok-number">1</span>) * Poly.bytes_length],</span> <span class="line" id="L1413"> );</span> <span class="line" id="L1414"> }</span> <span class="line" id="L1415"> <span class="tok-kw">return</span> ret;</span> <span class="line" id="L1416"> }</span> <span class="line" id="L1417"> };</span> <span class="line" id="L1418">}</span> <span class="line" id="L1419"></span> <span class="line" id="L1420"><span class="tok-comment">// A matrix of K vectors</span> </span> <span class="line" id="L1421"><span class="tok-kw">fn</span> <span class="tok-fn">Mat</span>(<span class="tok-kw">comptime</span> K: <span class="tok-type">u8</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L1422"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L1423"> <span class="tok-kw">const</span> Self = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L1424"> vs: [K]Vec(K),</span> <span class="line" id="L1425"></span> <span class="line" id="L1426"> <span class="tok-kw">fn</span> <span class="tok-fn">uniform</span>(seed: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>, <span class="tok-kw">comptime</span> transposed: <span class="tok-type">bool</span>) Self {</span> <span class="line" id="L1427"> <span class="tok-kw">var</span> ret: Self = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1428"> <span class="tok-kw">var</span> i: <span class="tok-type">u8</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L1429"> <span class="tok-kw">while</span> (i < K) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L1430"> <span class="tok-kw">var</span> j: <span class="tok-type">u8</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L1431"> <span class="tok-kw">while</span> (j < K) : (j += <span class="tok-number">1</span>) {</span> <span class="line" id="L1432"> ret.vs[i].ps[j] = Poly.uniform(</span> <span class="line" id="L1433"> seed,</span> <span class="line" id="L1434"> <span class="tok-kw">if</span> (transposed) i <span class="tok-kw">else</span> j,</span> <span class="line" id="L1435"> <span class="tok-kw">if</span> (transposed) j <span class="tok-kw">else</span> i,</span> <span class="line" id="L1436"> );</span> <span class="line" id="L1437"> }</span> <span class="line" id="L1438"> }</span> <span class="line" id="L1439"> <span class="tok-kw">return</span> ret;</span> <span class="line" id="L1440"> }</span> <span class="line" id="L1441"></span> <span class="line" id="L1442"> <span class="tok-comment">// Returns transpose of A</span> </span> <span class="line" id="L1443"> <span class="tok-kw">fn</span> <span class="tok-fn">transpose</span>(m: Self) Self {</span> <span class="line" id="L1444"> <span class="tok-kw">var</span> ret: Self = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1445"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..K) \|i\| {</span> <span class="line" id="L1446"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..K) \|j\| {</span> <span class="line" id="L1447"> ret.vs[i].ps[j] = m.vs[j].ps[i];</span> <span class="line" id="L1448"> }</span> <span class="line" id="L1449"> }</span> <span class="line" id="L1450"> <span class="tok-kw">return</span> ret;</span> <span class="line" id="L1451"> }</span> <span class="line" id="L1452"> };</span> <span class="line" id="L1453">}</span> <span class="line" id="L1454"></span> <span class="line" id="L1455"><span class="tok-comment">// Returns `true` if a ≠ b.</span> </span> <span class="line" id="L1456"><span class="tok-kw">fn</span> <span class="tok-fn">ctneq</span>(<span class="tok-kw">comptime</span> len: <span class="tok-type">usize</span>, a: [len]<span class="tok-type">u8</span>, b: [len]<span class="tok-type">u8</span>) <span class="tok-type">u1</span> {</span> <span class="line" id="L1457"> <span class="tok-kw">return</span> <span class="tok-number">1</span> - <span class="tok-builtin">@intFromBool</span>(crypto.utils.timingSafeEql([len]<span class="tok-type">u8</span>, a, b));</span> <span class="line" id="L1458">}</span> <span class="line" id="L1459"></span> <span class="line" id="L1460"><span class="tok-comment">// Copy src into dst given b = 1.</span> </span> <span class="line" id="L1461"><span class="tok-kw">fn</span> <span class="tok-fn">cmov</span>(<span class="tok-kw">comptime</span> len: <span class="tok-type">usize</span>, dst: [len]<span class="tok-type">u8</span>, src: [len]<span class="tok-type">u8</span>, b: <span class="tok-type">u1</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L1462"> <span class="tok-kw">const</span> mask = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-number">0</span>) -% b;</span> <span class="line" id="L1463"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..len) \|i\| {</span> <span class="line" id="L1464"> dst[i] ^= mask & (dst[i] ^ src[i]);</span> <span class="line" id="L1465"> }</span> <span class="line" id="L1466">}</span> <span class="line" id="L1467"></span> <span class="line" id="L1468"><span class="tok-kw">test</span> <span class="tok-str">"MulHat"</span> {</span> <span class="line" id="L1469"> <span class="tok-kw">var</span> rnd = RndGen.init(<span class="tok-number">0</span>);</span> <span class="line" id="L1470"></span> <span class="line" id="L1471"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..<span class="tok-number">100</span>) \|_\| {</span> <span class="line" id="L1472"> <span class="tok-kw">const</span> a = Poly.randAbsLeqQ(&rnd);</span> <span class="line" id="L1473"> <span class="tok-kw">const</span> b = Poly.randAbsLeqQ(&rnd);</span> <span class="line" id="L1474"></span> <span class="line" id="L1475"> <span class="tok-kw">const</span> p2 = a.ntt().mulHat(b.ntt()).barrettReduce().invNTT().normalize();</span> <span class="line" id="L1476"> <span class="tok-kw">var</span> p: Poly = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1477"></span> <span class="line" id="L1478"> <span class="tok-builtin">@memset</span>(&p.cs, <span class="tok-number">0</span>);</span> <span class="line" id="L1479"></span> <span class="line" id="L1480"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..N) \|i\| {</span> <span class="line" id="L1481"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..N) \|j\| {</span> <span class="line" id="L1482"> <span class="tok-kw">var</span> v = montReduce(<span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, a.cs[i]) <span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, b.cs[j]));</span> <span class="line" id="L1483"> <span class="tok-kw">var</span> k = i + j;</span> <span class="line" id="L1484"> <span class="tok-kw">if</span> (k >= N) {</span> <span class="line" id="L1485"> <span class="tok-comment">// Recall Xᴺ = -1.</span> </span> <span class="line" id="L1486"> k -= N;</span> <span class="line" id="L1487"> v = -v;</span> <span class="line" id="L1488"> }</span> <span class="line" id="L1489"> p.cs[k] = feBarrettReduce(v + p.cs[k]);</span> <span class="line" id="L1490"> }</span> <span class="line" id="L1491"> }</span> <span class="line" id="L1492"></span> <span class="line" id="L1493"> p = p.toMont().normalize();</span> <span class="line" id="L1494"></span> <span class="line" id="L1495"> <span class="tok-kw">try</span> testing.expectEqual(p, p2);</span> <span class="line" id="L1496"> }</span> <span class="line" id="L1497">}</span> <span class="line" id="L1498"></span> <span class="line" id="L1499"><span class="tok-kw">test</span> <span class="tok-str">"NTT"</span> {</span> <span class="line" id="L1500"> <span class="tok-kw">var</span> rnd = RndGen.init(<span class="tok-number">0</span>);</span> <span class="line" id="L1501"></span> <span class="line" id="L1502"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..<span class="tok-number">1000</span>) \|_\| {</span> <span class="line" id="L1503"> <span class="tok-kw">var</span> p = Poly.randAbsLeqQ(&rnd);</span> <span class="line" id="L1504"> <span class="tok-kw">const</span> q = p.toMont().normalize();</span> <span class="line" id="L1505"> p = p.ntt();</span> <span class="line" id="L1506"></span> <span class="line" id="L1507"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..N) \|i\| {</span> <span class="line" id="L1508"> <span class="tok-kw">try</span> testing.expect(p.cs[i] <= <span class="tok-number">7</span> * Q <span class="tok-kw">and</span> -<span class="tok-number">7</span> * Q <= p.cs[i]);</span> <span class="line" id="L1509"> }</span> <span class="line" id="L1510"></span> <span class="line" id="L1511"> p = p.normalize().invNTT();</span> <span class="line" id="L1512"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..N) \|i\| {</span> <span class="line" id="L1513"> <span class="tok-kw">try</span> testing.expect(p.cs[i] <= Q <span class="tok-kw">and</span> -Q <= p.cs[i]);</span> <span class="line" id="L1514"> }</span> <span class="line" id="L1515"></span> <span class="line" id="L1516"> p = p.normalize();</span> <span class="line" id="L1517"></span> <span class="line" id="L1518"> <span class="tok-kw">try</span> testing.expectEqual(p, q);</span> <span class="line" id="L1519"> }</span> <span class="line" id="L1520">}</span> <span class="line" id="L1521"></span> <span class="line" id="L1522"><span class="tok-kw">test</span> <span class="tok-str">"Compression"</span> {</span> <span class="line" id="L1523"> <span class="tok-kw">var</span> rnd = RndGen.init(<span class="tok-number">0</span>);</span> <span class="line" id="L1524"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (.{ <span class="tok-number">1</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">10</span>, <span class="tok-number">11</span> }) \|d\| {</span> <span class="line" id="L1525"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..<span class="tok-number">1000</span>) \|_\| {</span> <span class="line" id="L1526"> <span class="tok-kw">const</span> p = Poly.randNormalized(&rnd);</span> <span class="line" id="L1527"> <span class="tok-kw">const</span> pp = p.compress(d);</span> <span class="line" id="L1528"> <span class="tok-kw">const</span> pq = Poly.decompress(d, &pp).compress(d);</span> <span class="line" id="L1529"> <span class="tok-kw">try</span> testing.expectEqual(pp, pq);</span> <span class="line" id="L1530"> }</span> <span class="line" id="L1531"> }</span> <span class="line" id="L1532">}</span> <span class="line" id="L1533"></span> <span class="line" id="L1534"><span class="tok-kw">test</span> <span class="tok-str">"noise"</span> {</span> <span class="line" id="L1535"> <span class="tok-kw">var</span> seed: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1536"> <span class="tok-kw">for</span> (&seed, <span class="tok-number">0</span>..) \|s, i\| {</span> <span class="line" id="L1537"> s. = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>(i));</span> <span class="line" id="L1538"> }</span> <span class="line" id="L1539"> <span class="tok-kw">try</span> testing.expectEqual(Poly.noise(<span class="tok-number">3</span>, <span class="tok-number">37</span>, &seed).cs, .{</span> <span class="line" id="L1540"> <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, -<span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">2</span>, <span class="tok-number">0</span>, -<span class="tok-number">1</span>, -<span class="tok-number">1</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, -<span class="tok-number">2</span>, -<span class="tok-number">2</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, -<span class="tok-number">2</span>,</span> <span class="line" id="L1541"> <span class="tok-number">1</span>, <span class="tok-number">0</span>, -<span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">3</span>, <span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">1</span>, -<span class="tok-number">1</span>, -<span class="tok-number">1</span>, -<span class="tok-number">1</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L1542"> <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">2</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, -<span class="tok-number">2</span>, <span class="tok-number">0</span>, -<span class="tok-number">1</span>, -<span class="tok-number">1</span>, -<span class="tok-number">2</span>, <span class="tok-number">1</span>, -<span class="tok-number">1</span>, -<span class="tok-number">1</span>, <span class="tok-number">2</span>, -<span class="tok-number">1</span>,</span> <span class="line" id="L1543"> <span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, -<span class="tok-number">3</span>, -<span class="tok-number">1</span>, -<span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, -<span class="tok-number">1</span>, -<span class="tok-number">2</span>, -<span class="tok-number">2</span>, <span class="tok-number">0</span>, -<span class="tok-number">2</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L1544"> <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, -<span class="tok-number">1</span>, -<span class="tok-number">1</span>, <span class="tok-number">1</span>, -<span class="tok-number">2</span>, <span class="tok-number">2</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">2</span>, -<span class="tok-number">2</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>,</span> <span class="line" id="L1545"> <span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, -<span class="tok-number">2</span>, -<span class="tok-number">1</span>, -<span class="tok-number">2</span>, -<span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, -<span class="tok-number">1</span>,</span> <span class="line" id="L1546"> -<span class="tok-number">1</span>, <span class="tok-number">0</span>, -<span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, -<span class="tok-number">1</span>, -<span class="tok-number">1</span>, <span class="tok-number">0</span>, -<span class="tok-number">2</span>, <span class="tok-number">2</span>, <span class="tok-number">0</span>, -<span class="tok-number">2</span>, <span class="tok-number">1</span>, -<span class="tok-number">1</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L1547"> <span class="tok-number">1</span>, -<span class="tok-number">1</span>, -<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, -<span class="tok-number">2</span>, -<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, -<span class="tok-number">1</span>, -<span class="tok-number">1</span>, <span class="tok-number">3</span>, <span class="tok-number">1</span>,</span> <span class="line" id="L1548"> <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">2</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, -<span class="tok-number">1</span>, -<span class="tok-number">1</span>, -<span class="tok-number">1</span>,</span> <span class="line" id="L1549"> <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">3</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, -<span class="tok-number">1</span>, -<span class="tok-number">1</span>, -<span class="tok-number">1</span>, -<span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, -<span class="tok-number">2</span>, -<span class="tok-number">1</span>, -<span class="tok-number">1</span>,</span> <span class="line" id="L1550"> <span class="tok-number">2</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">2</span>, -<span class="tok-number">2</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">1</span>, -<span class="tok-number">3</span>, -<span class="tok-number">1</span>, -<span class="tok-number">2</span>, -<span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>,</span> <span class="line" id="L1551"> <span class="tok-number">0</span>, <span class="tok-number">1</span>, -<span class="tok-number">2</span>, <span class="tok-number">2</span>, <span class="tok-number">2</span>, <span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, -<span class="tok-number">1</span>, <span class="tok-number">0</span>, -<span class="tok-number">1</span>, -<span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, -<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">1</span>,</span> <span class="line" id="L1552"> -<span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, -<span class="tok-number">2</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">2</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L1553"> <span class="tok-number">2</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, -<span class="tok-number">1</span>, -<span class="tok-number">1</span>, <span class="tok-number">1</span>, -<span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, -<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">2</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, -<span class="tok-number">1</span>, <span class="tok-number">1</span>,</span> <span class="line" id="L1554"> <span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, -<span class="tok-number">2</span>, <span class="tok-number">0</span>, -<span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">1</span>, -<span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L1555"> <span class="tok-number">1</span>,</span> <span class="line" id="L1556"> });</span> <span class="line" id="L1557"> <span class="tok-kw">try</span> testing.expectEqual(Poly.noise(<span class="tok-number">2</span>, <span class="tok-number">37</span>, &seed).cs, .{</span> <span class="line" id="L1558"> <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, -<span class="tok-number">1</span>, -<span class="tok-number">1</span>, -<span class="tok-number">2</span>, -<span class="tok-number">1</span>, -<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">0</span>, -<span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, -<span class="tok-number">1</span>,</span> <span class="line" id="L1559"> <span class="tok-number">1</span>, <span class="tok-number">1</span>, -<span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">2</span>, -<span class="tok-number">2</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, -<span class="tok-number">1</span>, <span class="tok-number">1</span>,</span> <span class="line" id="L1560"> <span class="tok-number">0</span>, -<span class="tok-number">1</span>, <span class="tok-number">1</span>, -<span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, -<span class="tok-number">1</span>, <span class="tok-number">1</span>, -<span class="tok-number">1</span>, -<span class="tok-number">2</span>, -<span class="tok-number">1</span>,</span> <span class="line" id="L1561"> <span class="tok-number">1</span>, -<span class="tok-number">1</span>, -<span class="tok-number">1</span>, -<span class="tok-number">1</span>, <span class="tok-number">2</span>, -<span class="tok-number">1</span>, -<span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">1</span>, -<span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">1</span>,</span> <span class="line" id="L1562"> <span class="tok-number">1</span>, <span class="tok-number">1</span>, -<span class="tok-number">1</span>, -<span class="tok-number">2</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">2</span>, <span class="tok-number">1</span>, -<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L1563"> <span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, -<span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, -<span class="tok-number">1</span>, -<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, -<span class="tok-number">1</span>, <span class="tok-number">2</span>, -<span class="tok-number">1</span>,</span> <span class="line" id="L1564"> -<span class="tok-number">1</span>, -<span class="tok-number">1</span>, -<span class="tok-number">1</span>, <span class="tok-number">0</span>, -<span class="tok-number">2</span>, <span class="tok-number">0</span>, <span class="tok-number">2</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, -<span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L1565"> <span class="tok-number">0</span>, -<span class="tok-number">1</span>, -<span class="tok-number">1</span>, <span class="tok-number">0</span>, -<span class="tok-number">1</span>, -<span class="tok-number">1</span>, <span class="tok-number">0</span>, -<span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, -<span class="tok-number">2</span>, <span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L1566"> <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">1</span>, -<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, -<span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L1567"> <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, -<span class="tok-number">1</span>, -<span class="tok-number">1</span>, -<span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, -<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>,</span> <span class="line" id="L1568"> <span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, -<span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">2</span>, -<span class="tok-number">1</span>, <span class="tok-number">1</span>, -<span class="tok-number">1</span>, -<span class="tok-number">2</span>,</span> <span class="line" id="L1569"> -<span class="tok-number">1</span>, -<span class="tok-number">2</span>, -<span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, -<span class="tok-number">2</span>, -<span class="tok-number">2</span>, -<span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>,</span> <span class="line" id="L1570"> <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">2</span>, <span class="tok-number">2</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, -<span class="tok-number">1</span>, -<span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">2</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L1571"> -<span class="tok-number">2</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">2</span>, <span class="tok-number">1</span>, -<span class="tok-number">1</span>, -<span class="tok-number">2</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, -<span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L1572"> <span class="tok-number">2</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">1</span>, -<span class="tok-number">2</span>, <span class="tok-number">1</span>, -<span class="tok-number">2</span>, <span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">2</span>, <span class="tok-number">0</span>, -<span class="tok-number">1</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L1573"> -<span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, -<span class="tok-number">2</span>, <span class="tok-number">1</span>, -<span class="tok-number">2</span>, -<span class="tok-number">2</span>, <span class="tok-number">1</span>, -<span class="tok-number">1</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L1574"> -<span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, -<span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L1575"> <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, -<span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, -<span class="tok-number">1</span>, -<span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">1</span>, -<span class="tok-number">1</span>,</span> <span class="line" id="L1576"> <span class="tok-number">0</span>, <span class="tok-number">1</span>, -<span class="tok-number">1</span>, <span class="tok-number">0</span>,</span> <span class="line" id="L1577"> });</span> <span class="line" id="L1578">}</span> <span class="line" id="L1579"></span> <span class="line" id="L1580"><span class="tok-kw">test</span> <span class="tok-str">"uniform sampling"</span> {</span> <span class="line" id="L1581"> <span class="tok-kw">var</span> seed: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1582"> <span class="tok-kw">for</span> (&seed, <span class="tok-number">0</span>..) \|s, i\| {</span> <span class="line" id="L1583"> s. = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>(i));</span> <span class="line" id="L1584"> }</span> <span class="line" id="L1585"> <span class="tok-kw">try</span> testing.expectEqual(Poly.uniform(seed, <span class="tok-number">1</span>, <span class="tok-number">0</span>).cs, .{</span> <span class="line" id="L1586"> <span class="tok-number">797</span>, <span class="tok-number">993</span>, <span class="tok-number">161</span>, <span class="tok-number">6</span>, <span class="tok-number">2608</span>, <span class="tok-number">2385</span>, <span class="tok-number">2096</span>, <span class="tok-number">2661</span>, <span class="tok-number">1676</span>, <span class="tok-number">247</span>, <span class="tok-number">2440</span>,</span> <span class="line" id="L1587"> <span class="tok-number">342</span>, <span class="tok-number">634</span>, <span class="tok-number">194</span>, <span class="tok-number">1570</span>, <span class="tok-number">2848</span>, <span class="tok-number">986</span>, <span class="tok-number">684</span>, <span class="tok-number">3148</span>, <span class="tok-number">3208</span>, <span class="tok-number">2018</span>, <span class="tok-number">351</span>,</span> <span class="line" id="L1588"> <span class="tok-number">2288</span>, <span class="tok-number">612</span>, <span class="tok-number">1394</span>, <span class="tok-number">170</span>, <span class="tok-number">1521</span>, <span class="tok-number">3119</span>, <span class="tok-number">58</span>, <span class="tok-number">596</span>, <span class="tok-number">2093</span>, <span class="tok-number">1549</span>, <span class="tok-number">409</span>,</span> <span class="line" id="L1589"> <span class="tok-number">2156</span>, <span class="tok-number">1934</span>, <span class="tok-number">1730</span>, <span class="tok-number">1324</span>, <span class="tok-number">388</span>, <span class="tok-number">446</span>, <span class="tok-number">418</span>, <span class="tok-number">1719</span>, <span class="tok-number">2202</span>, <span class="tok-number">1812</span>, <span class="tok-number">98</span>,</span> <span class="line" id="L1590"> <span class="tok-number">1019</span>, <span class="tok-number">2369</span>, <span class="tok-number">214</span>, <span class="tok-number">2699</span>, <span class="tok-number">28</span>, <span class="tok-number">1523</span>, <span class="tok-number">2824</span>, <span class="tok-number">273</span>, <span class="tok-number">402</span>, <span class="tok-number">2899</span>, <span class="tok-number">246</span>,</span> <span class="line" id="L1591"> <span class="tok-number">210</span>, <span class="tok-number">1288</span>, <span class="tok-number">863</span>, <span class="tok-number">2708</span>, <span class="tok-number">177</span>, <span class="tok-number">3076</span>, <span class="tok-number">349</span>, <span class="tok-number">44</span>, <span class="tok-number">949</span>, <span class="tok-number">854</span>, <span class="tok-number">1371</span>,</span> <span class="line" id="L1592"> <span class="tok-number">957</span>, <span class="tok-number">292</span>, <span class="tok-number">2502</span>, <span class="tok-number">1617</span>, <span class="tok-number">1501</span>, <span class="tok-number">254</span>, <span class="tok-number">7</span>, <span class="tok-number">1761</span>, <span class="tok-number">2581</span>, <span class="tok-number">2206</span>, <span class="tok-number">2655</span>,</span> <span class="line" id="L1593"> <span class="tok-number">1211</span>, <span class="tok-number">629</span>, <span class="tok-number">1274</span>, <span class="tok-number">2358</span>, <span class="tok-number">816</span>, <span class="tok-number">2766</span>, <span class="tok-number">2115</span>, <span class="tok-number">2985</span>, <span class="tok-number">1006</span>, <span class="tok-number">2433</span>, <span class="tok-number">856</span>,</span> <span class="line" id="L1594"> <span class="tok-number">2596</span>, <span class="tok-number">3192</span>, <span class="tok-number">1</span>, <span class="tok-number">1378</span>, <span class="tok-number">2345</span>, <span class="tok-number">707</span>, <span class="tok-number">1891</span>, <span class="tok-number">1669</span>, <span class="tok-number">536</span>, <span class="tok-number">1221</span>, <span class="tok-number">710</span>,</span> <span class="line" id="L1595"> <span class="tok-number">2511</span>, <span class="tok-number">120</span>, <span class="tok-number">1176</span>, <span class="tok-number">322</span>, <span class="tok-number">1897</span>, <span class="tok-number">2309</span>, <span class="tok-number">595</span>, <span class="tok-number">2950</span>, <span class="tok-number">1171</span>, <span class="tok-number">801</span>, <span class="tok-number">1848</span>,</span> <span class="line" id="L1596"> <span class="tok-number">695</span>, <span class="tok-number">2912</span>, <span class="tok-number">1396</span>, <span class="tok-number">1931</span>, <span class="tok-number">1775</span>, <span class="tok-number">2904</span>, <span class="tok-number">893</span>, <span class="tok-number">2507</span>, <span class="tok-number">1810</span>, <span class="tok-number">2873</span>, <span class="tok-number">253</span>,</span> <span class="line" id="L1597"> <span class="tok-number">1529</span>, <span class="tok-number">1047</span>, <span class="tok-number">2615</span>, <span class="tok-number">1687</span>, <span class="tok-number">831</span>, <span class="tok-number">1414</span>, <span class="tok-number">965</span>, <span class="tok-number">3169</span>, <span class="tok-number">1887</span>, <span class="tok-number">753</span>, <span class="tok-number">3246</span>,</span> <span class="line" id="L1598"> <span class="tok-number">1937</span>, <span class="tok-number">115</span>, <span class="tok-number">2953</span>, <span class="tok-number">586</span>, <span class="tok-number">545</span>, <span class="tok-number">1621</span>, <span class="tok-number">1667</span>, <span class="tok-number">3187</span>, <span class="tok-number">1654</span>, <span class="tok-number">1988</span>, <span class="tok-number">1857</span>,</span> <span class="line" id="L1599"> <span class="tok-number">512</span>, <span class="tok-number">1239</span>, <span class="tok-number">1219</span>, <span class="tok-number">898</span>, <span class="tok-number">3106</span>, <span class="tok-number">391</span>, <span class="tok-number">1331</span>, <span class="tok-number">2228</span>, <span class="tok-number">3169</span>, <span class="tok-number">586</span>, <span class="tok-number">2412</span>,</span> <span class="line" id="L1600"> <span class="tok-number">845</span>, <span class="tok-number">768</span>, <span class="tok-number">156</span>, <span class="tok-number">662</span>, <span class="tok-number">478</span>, <span class="tok-number">1693</span>, <span class="tok-number">2632</span>, <span class="tok-number">573</span>, <span class="tok-number">2434</span>, <span class="tok-number">1671</span>, <span class="tok-number">173</span>,</span> <span class="line" id="L1601"> <span class="tok-number">969</span>, <span class="tok-number">364</span>, <span class="tok-number">1663</span>, <span class="tok-number">2701</span>, <span class="tok-number">2169</span>, <span class="tok-number">813</span>, <span class="tok-number">1000</span>, <span class="tok-number">1471</span>, <span class="tok-number">720</span>, <span class="tok-number">2431</span>, <span class="tok-number">2530</span>,</span> <span class="line" id="L1602"> <span class="tok-number">3161</span>, <span class="tok-number">733</span>, <span class="tok-number">1691</span>, <span class="tok-number">527</span>, <span class="tok-number">2634</span>, <span class="tok-number">335</span>, <span class="tok-number">26</span>, <span class="tok-number">2377</span>, <span class="tok-number">1707</span>, <span class="tok-number">767</span>, <span class="tok-number">3020</span>,</span> <span class="line" id="L1603"> <span class="tok-number">950</span>, <span class="tok-number">502</span>, <span class="tok-number">426</span>, <span class="tok-number">1138</span>, <span class="tok-number">3208</span>, <span class="tok-number">2607</span>, <span class="tok-number">2389</span>, <span class="tok-number">44</span>, <span class="tok-number">1358</span>, <span class="tok-number">1392</span>, <span class="tok-number">2334</span>,</span> <span class="line" id="L1604"> <span class="tok-number">875</span>, <span class="tok-number">2097</span>, <span class="tok-number">173</span>, <span class="tok-number">1697</span>, <span class="tok-number">2578</span>, <span class="tok-number">942</span>, <span class="tok-number">1817</span>, <span class="tok-number">974</span>, <span class="tok-number">1165</span>, <span class="tok-number">2853</span>, <span class="tok-number">1958</span>,</span> <span class="line" id="L1605"> <span class="tok-number">2973</span>, <span class="tok-number">3282</span>, <span class="tok-number">271</span>, <span class="tok-number">1236</span>, <span class="tok-number">1677</span>, <span class="tok-number">2230</span>, <span class="tok-number">673</span>, <span class="tok-number">1554</span>, <span class="tok-number">96</span>, <span class="tok-number">242</span>, <span class="tok-number">1729</span>,</span> <span class="line" id="L1606"> <span class="tok-number">2518</span>, <span class="tok-number">1884</span>, <span class="tok-number">2272</span>, <span class="tok-number">71</span>, <span class="tok-number">1382</span>, <span class="tok-number">924</span>, <span class="tok-number">1807</span>, <span class="tok-number">1610</span>, <span class="tok-number">456</span>, <span class="tok-number">1148</span>, <span class="tok-number">2479</span>,</span> <span class="line" id="L1607"> <span class="tok-number">2152</span>, <span class="tok-number">238</span>, <span class="tok-number">2208</span>, <span class="tok-number">2329</span>, <span class="tok-number">713</span>, <span class="tok-number">1175</span>, <span class="tok-number">1196</span>, <span class="tok-number">757</span>, <span class="tok-number">1078</span>, <span class="tok-number">3190</span>, <span class="tok-number">3169</span>,</span> <span class="line" id="L1608"> <span class="tok-number">708</span>, <span class="tok-number">3117</span>, <span class="tok-number">154</span>, <span class="tok-number">1751</span>, <span class="tok-number">3225</span>, <span class="tok-number">1364</span>, <span class="tok-number">154</span>, <span class="tok-number">23</span>, <span class="tok-number">2842</span>, <span class="tok-number">1105</span>, <span class="tok-number">1419</span>,</span> <span class="line" id="L1609"> <span class="tok-number">79</span>, <span class="tok-number">5</span>, <span class="tok-number">2013</span>,</span> <span class="line" id="L1610"> });</span> <span class="line" id="L1611">}</span> <span class="line" id="L1612"></span> <span class="line" id="L1613"><span class="tok-kw">test</span> <span class="tok-str">"Polynomial packing"</span> {</span> <span class="line" id="L1614"> <span class="tok-kw">var</span> rnd = RndGen.init(<span class="tok-number">0</span>);</span> <span class="line" id="L1615"></span> <span class="line" id="L1616"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..<span class="tok-number">1000</span>) \|_\| {</span> <span class="line" id="L1617"> <span class="tok-kw">const</span> p = Poly.randNormalized(&rnd);</span> <span class="line" id="L1618"> <span class="tok-kw">try</span> testing.expectEqual(Poly.fromBytes(&p.toBytes()), p);</span> <span class="line" id="L1619"> }</span> <span class="line" id="L1620">}</span> <span class="line" id="L1621"></span> <span class="line" id="L1622"><span class="tok-kw">test</span> <span class="tok-str">"Test inner PKE"</span> {</span> <span class="line" id="L1623"> <span class="tok-kw">var</span> seed: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1624"> <span class="tok-kw">var</span> pt: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1625"> <span class="tok-kw">for</span> (&seed, &pt, <span class="tok-number">0</span>..) \|s, p, i\| {</span> <span class="line" id="L1626"> s.* = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>(i));</span> <span class="line" id="L1627"> p.* = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>(i + <span class="tok-number">32</span>));</span> <span class="line" id="L1628"> }</span> <span class="line" id="L1629"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (modes) \|mode\| {</span> <span class="line" id="L1630"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..<span class="tok-number">100</span>) \|i\| {</span> <span class="line" id="L1631"> <span class="tok-kw">var</span> pk: mode.InnerPk = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1632"> <span class="tok-kw">var</span> sk: mode.InnerSk = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1633"> seed[<span class="tok-number">0</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>(i));</span> <span class="line" id="L1634"> mode.innerKeyFromSeed(seed, &pk, &sk);</span> <span class="line" id="L1635"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..<span class="tok-number">10</span>) \|j\| {</span> <span class="line" id="L1636"> seed[<span class="tok-number">1</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>(j));</span> <span class="line" id="L1637"> <span class="tok-kw">try</span> testing.expectEqual(sk.decrypt(&pk.encrypt(&pt, &seed)), pt);</span> <span class="line" id="L1638"> }</span> <span class="line" id="L1639"> }</span> <span class="line" id="L1640"> }</span> <span class="line" id="L1641">}</span> <span class="line" id="L1642"></span> <span class="line" id="L1643"><span class="tok-kw">test</span> <span class="tok-str">"Test happy flow"</span> {</span> <span class="line" id="L1644"> <span class="tok-kw">var</span> seed: [<span class="tok-number">64</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1645"> <span class="tok-kw">for</span> (&seed, <span class="tok-number">0</span>..) \|s, i\| {</span> <span class="line" id="L1646"> s. = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>(i));</span> <span class="line" id="L1647"> }</span> <span class="line" id="L1648"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (modes) \|mode\| {</span> <span class="line" id="L1649"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..<span class="tok-number">100</span>) \|i\| {</span> <span class="line" id="L1650"> seed[<span class="tok-number">0</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>(i));</span> <span class="line" id="L1651"> <span class="tok-kw">const</span> kp = <span class="tok-kw">try</span> mode.KeyPair.create(seed);</span> <span class="line" id="L1652"> <span class="tok-kw">const</span> sk = <span class="tok-kw">try</span> mode.SecretKey.fromBytes(&kp.secret_key.toBytes());</span> <span class="line" id="L1653"> <span class="tok-kw">try</span> testing.expectEqual(sk, kp.secret_key);</span> <span class="line" id="L1654"> <span class="tok-kw">const</span> pk = <span class="tok-kw">try</span> mode.PublicKey.fromBytes(&kp.public_key.toBytes());</span> <span class="line" id="L1655"> <span class="tok-kw">try</span> testing.expectEqual(pk, kp.public_key);</span> <span class="line" id="L1656"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..<span class="tok-number">10</span>) \|j\| {</span> <span class="line" id="L1657"> seed[<span class="tok-number">1</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>(j));</span> <span class="line" id="L1658"> <span class="tok-kw">const</span> e = pk.encaps(seed[<span class="tok-number">0</span>..<span class="tok-number">32</span>].);</span> <span class="line" id="L1659"> <span class="tok-kw">try</span> testing.expectEqual(e.shared_secret, <span class="tok-kw">try</span> sk.decaps(&e.ciphertext));</span> <span class="line" id="L1660"> }</span> <span class="line" id="L1661"> }</span> <span class="line" id="L1662"> }</span> <span class="line" id="L1663">}</span> <span class="line" id="L1664"></span> <span class="line" id="L1665"><span class="tok-comment">// Code to test NIST Known Answer Tests (KAT), see PQCgenKAT.c.</span> </span> <span class="line" id="L1666"></span> <span class="line" id="L1667"><span class="tok-kw">const</span> sha2 = crypto.hash.sha2;</span> <span class="line" id="L1668"></span> <span class="line" id="L1669"><span class="tok-kw">test</span> <span class="tok-str">"NIST KAT test"</span> {</span> <span class="line" id="L1670"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (.{</span> <span class="line" id="L1671"> .{ Kyber512, <span class="tok-str">"e9c2bd37133fcb40772f81559f14b1f58dccd1c816701be9ba6214d43baf4547"</span> },</span> <span class="line" id="L1672"> .{ Kyber1024, <span class="tok-str">"89248f2f33f7f4f7051729111f3049c409a933ec904aedadf035f30fa5646cd5"</span> },</span> <span class="line" id="L1673"> .{ Kyber768, <span class="tok-str">"a1e122cad3c24bc51622e4c242d8b8acbcd3f618fee4220400605ca8f9ea02c2"</span> },</span> <span class="line" id="L1674"> }) \|modeHash\| {</span> <span class="line" id="L1675"> <span class="tok-kw">const</span> mode = modeHash[<span class="tok-number">0</span>];</span> <span class="line" id="L1676"> <span class="tok-kw">var</span> seed: [<span class="tok-number">48</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1677"> <span class="tok-kw">for</span> (&seed, <span class="tok-number">0</span>..) \|s, i\| {</span> <span class="line" id="L1678"> s.* = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>(i));</span> <span class="line" id="L1679"> }</span> <span class="line" id="L1680"> <span class="tok-kw">var</span> f = sha2.Sha256.init(.{});</span> <span class="line" id="L1681"> <span class="tok-kw">const</span> fw = f.writer();</span> <span class="line" id="L1682"> <span class="tok-kw">var</span> g = NistDRBG.init(seed);</span> <span class="line" id="L1683"> <span class="tok-kw">try</span> std.fmt.format(fw, <span class="tok-str">"# {s}\n\n"</span>, .{mode.name});</span> <span class="line" id="L1684"> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..<span class="tok-number">100</span>) \|i\| {</span> <span class="line" id="L1685"> g.fill(&seed);</span> <span class="line" id="L1686"> <span class="tok-kw">try</span> std.fmt.format(fw, <span class="tok-str">"count = {}\n"</span>, .{i});</span> <span class="line" id="L1687"> <span class="tok-kw">try</span> std.fmt.format(fw, <span class="tok-str">"seed = {s}\n"</span>, .{std.fmt.fmtSliceHexUpper(&seed)});</span> <span class="line" id="L1688"> <span class="tok-kw">var</span> g2 = NistDRBG.init(seed);</span> <span class="line" id="L1689"></span> <span class="line" id="L1690"> <span class="tok-comment">// This is not equivalent to g2.fill(kseed[:]). As the reference</span> </span> <span class="line" id="L1691"> <span class="tok-comment">// implementation calls randombytes twice generating the keypair,</span> </span> <span class="line" id="L1692"> <span class="tok-comment">// we have to do that as well.</span> </span> <span class="line" id="L1693"> <span class="tok-kw">var</span> kseed: [<span class="tok-number">64</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1694"> <span class="tok-kw">var</span> eseed: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1695"> g2.fill(kseed[<span class="tok-number">0</span>..<span class="tok-number">32</span>]);</span> <span class="line" id="L1696"> g2.fill(kseed[<span class="tok-number">32</span>..<span class="tok-number">64</span>]);</span> <span class="line" id="L1697"> g2.fill(&eseed);</span> <span class="line" id="L1698"> <span class="tok-kw">const</span> kp = <span class="tok-kw">try</span> mode.KeyPair.create(kseed);</span> <span class="line" id="L1699"> <span class="tok-kw">const</span> e = kp.public_key.encaps(eseed);</span> <span class="line" id="L1700"> <span class="tok-kw">const</span> ss2 = <span class="tok-kw">try</span> kp.secret_key.decaps(&e.ciphertext);</span> <span class="line" id="L1701"> <span class="tok-kw">try</span> testing.expectEqual(ss2, e.shared_secret);</span> <span class="line" id="L1702"> <span class="tok-kw">try</span> std.fmt.format(fw, <span class="tok-str">"pk = {s}\n"</span>, .{std.fmt.fmtSliceHexUpper(&kp.public_key.toBytes())});</span> <span class="line" id="L1703"> <span class="tok-kw">try</span> std.fmt.format(fw, <span class="tok-str">"sk = {s}\n"</span>, .{std.fmt.fmtSliceHexUpper(&kp.secret_key.toBytes())});</span> <span class="line" id="L1704"> <span class="tok-kw">try</span> std.fmt.format(fw, <span class="tok-str">"ct = {s}\n"</span>, .{std.fmt.fmtSliceHexUpper(&e.ciphertext)});</span> <span class="line" id="L1705"> <span class="tok-kw">try</span> std.fmt.format(fw, <span class="tok-str">"ss = {s}\n\n"</span>, .{std.fmt.fmtSliceHexUpper(&e.shared_secret)});</span> <span class="line" id="L1706"> }</span> <span class="line" id="L1707"></span> <span class="line" id="L1708"> <span class="tok-kw">var</span> out: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1709"> f.final(&out);</span> <span class="line" id="L1710"> <span class="tok-kw">var</span> outHex: [<span class="tok-number">64</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1711"> _ = <span class="tok-kw">try</span> std.fmt.bufPrint(&outHex, <span class="tok-str">"{s}"</span>, .{std.fmt.fmtSliceHexLower(&out)});</span> <span class="line" id="L1712"> <span class="tok-kw">try</span> testing.expectEqual(outHex, modeHash[<span class="tok-number">1</span>].);</span> <span class="line" id="L1713"> }</span> <span class="line" id="L1714">}</span> <span class="line" id="L1715"></span> <span class="line" id="L1716"><span class="tok-kw">const</span> NistDRBG = <span class="tok-kw">struct</span> {</span> <span class="line" id="L1717"> key: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>,</span> <span class="line" id="L1718"> v: [<span class="tok-number">16</span>]<span class="tok-type">u8</span>,</span> <span class="line" id="L1719"></span> <span class="line" id="L1720"> <span class="tok-kw">fn</span> <span class="tok-fn">incV</span>(g: NistDRBG) <span class="tok-type">void</span> {</span> <span class="line" id="L1721"> <span class="tok-kw">var</span> j: <span class="tok-type">usize</span> = <span class="tok-number">15</span>;</span> <span class="line" id="L1722"> <span class="tok-kw">while</span> (j >= <span class="tok-number">0</span>) : (j -= <span class="tok-number">1</span>) {</span> <span class="line" id="L1723"> <span class="tok-kw">if</span> (g.v[j] == <span class="tok-number">255</span>) {</span> <span class="line" id="L1724"> g.v[j] = <span class="tok-number">0</span>;</span> <span class="line" id="L1725"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L1726"> g.v[j] += <span class="tok-number">1</span>;</span> <span class="line" id="L1727"> <span class="tok-kw">break</span>;</span> <span class="line" id="L1728"> }</span> <span class="line" id="L1729"> }</span> <span class="line" id="L1730"> }</span> <span class="line" id="L1731"></span> <span class="line" id="L1732"> <span class="tok-comment">// AES256_CTR_DRBG_Update(pd, &g.key, &g.v).</span> </span> <span class="line" id="L1733"> <span class="tok-kw">fn</span> <span class="tok-fn">update</span>(g: NistDRBG, pd: ?[<span class="tok-number">48</span>]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L1734"> <span class="tok-kw">var</span> buf: [<span class="tok-number">48</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1735"> <span class="tok-kw">const</span> ctx = crypto.core.aes.Aes256.initEnc(g.key);</span> <span class="line" id="L1736"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L1737"> <span class="tok-kw">while</span> (i < <span class="tok-number">3</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L1738"> g.incV();</span> <span class="line" id="L1739"> <span class="tok-kw">var</span> block: [<span class="tok-number">16</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1740"> ctx.encrypt(&block, &g.v);</span> <span class="line" id="L1741"> buf[i <span class="tok-number">16</span> ..][<span class="tok-number">0</span>..<span class="tok-number">16</span>].* = block;</span> <span class="line" id="L1742"> }</span> <span class="line" id="L1743"> <span class="tok-kw">if</span> (pd) \|p\| {</span> <span class="line" id="L1744"> <span class="tok-kw">for</span> (&buf, p) \|b, x\| {</span> <span class="line" id="L1745"> b. ^= x;</span> <span class="line" id="L1746"> }</span> <span class="line" id="L1747"> }</span> <span class="line" id="L1748"> g.key = buf[<span class="tok-number">0</span>..<span class="tok-number">32</span>].;</span> <span class="line" id="L1749"> g.v = buf[<span class="tok-number">32</span>..<span class="tok-number">48</span>].;</span> <span class="line" id="L1750"> }</span> <span class="line" id="L1751"></span> <span class="line" id="L1752"> <span class="tok-comment">// randombytes.</span> </span> <span class="line" id="L1753"> <span class="tok-kw">fn</span> <span class="tok-fn">fill</span>(g: NistDRBG, out: []<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L1754"> <span class="tok-kw">var</span> block: [<span class="tok-number">16</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1755"> <span class="tok-kw">var</span> dst = out;</span> <span class="line" id="L1756"></span> <span class="line" id="L1757"> <span class="tok-kw">const</span> ctx = crypto.core.aes.Aes256.initEnc(g.key);</span> <span class="line" id="L1758"> <span class="tok-kw">while</span> (dst.len > <span class="tok-number">0</span>) {</span> <span class="line" id="L1759"> g.incV();</span> <span class="line" id="L1760"> ctx.encrypt(&block, &g.v);</span> <span class="line" id="L1761"> <span class="tok-kw">if</span> (dst.len < <span class="tok-number">16</span>) {</span> <span class="line" id="L1762"> <span class="tok-builtin">@memcpy</span>(dst, block[<span class="tok-number">0</span>..dst.len]);</span> <span class="line" id="L1763"> <span class="tok-kw">break</span>;</span> <span class="line" id="L1764"> }</span> <span class="line" id="L1765"> dst[<span class="tok-number">0</span>..block.len]. = block;</span> <span class="line" id="L1766"> dst = dst[<span class="tok-number">16</span>..dst.len];</span> <span class="line" id="L1767"> }</span> <span class="line" id="L1768"> g.update(<span class="tok-null">null</span>);</span> <span class="line" id="L1769"> }</span> <span class="line" id="L1770"></span> <span class="line" id="L1771"> <span class="tok-kw">fn</span> <span class="tok-fn">init</span>(seed: [<span class="tok-number">48</span>]<span class="tok-type">u8</span>) NistDRBG {</span> <span class="line" id="L1772"> <span class="tok-kw">var</span> ret: NistDRBG = .{ .key = .{<span class="tok-number">0</span>} <span class="tok-number">32</span>, .v = .{<span class="tok-number">0</span>} <span class="tok-number">16</span> };</span> <span class="line" id="L1773"> ret.update(seed);</span> <span class="line" id="L1774"> <span class="tok-kw">return</span> ret;</span> <span class="line" id="L1775"> }</span> <span class="line" id="L1776">};</span> <span class="line" id="L1777"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/crypto/hash_composition.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/hash_composition.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"../std.zig"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> sha2 = std.crypto.hash.sha2;</span> <span class="line" id="L3"></span> <span class="line" id="L4"><span class="tok-comment">/// The composition of two hash functions: H1 o H2, with the same API as regular hash functions.</span></span> <span class="line" id="L5"><span class="tok-comment">///</span></span> <span class="line" id="L6"><span class="tok-comment">/// The security level of a hash cascade doesn't exceed the security level of the weakest function.</span></span> <span class="line" id="L7"><span class="tok-comment">///</span></span> <span class="line" id="L8"><span class="tok-comment">/// However, Merkle–Damgård constructions such as SHA-256 are vulnerable to length-extension attacks,</span></span> <span class="line" id="L9"><span class="tok-comment">/// where under some conditions, `H(x\|\|e)` can be efficiently computed without knowing `x`.</span></span> <span class="line" id="L10"><span class="tok-comment">/// The composition of two hash functions is a common defense against such attacks.</span></span> <span class="line" id="L11"><span class="tok-comment">///</span></span> <span class="line" id="L12"><span class="tok-comment">/// This is not necessary with modern hash functions, such as SHA-3, BLAKE2 and BLAKE3.</span></span> <span class="line" id="L13"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">Composition</span>(<span class="tok-kw">comptime</span> H1: <span class="tok-type">type</span>, <span class="tok-kw">comptime</span> H2: <span class="tok-type">type</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L14"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L15"> <span class="tok-kw">const</span> Self = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L16"></span> <span class="line" id="L17"> H1: H1,</span> <span class="line" id="L18"> H2: H2,</span> <span class="line" id="L19"></span> <span class="line" id="L20"> <span class="tok-comment">/// The length of the hash output, in bytes.</span></span> <span class="line" id="L21"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> digest_length = H1.digest_length;</span> <span class="line" id="L22"> <span class="tok-comment">/// The block length, in bytes.</span></span> <span class="line" id="L23"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> block_length = H1.block_length;</span> <span class="line" id="L24"></span> <span class="line" id="L25"> <span class="tok-comment">/// Options for both hashes.</span></span> <span class="line" id="L26"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Options = <span class="tok-kw">struct</span> {</span> <span class="line" id="L27"> <span class="tok-comment">/// Options for H1.</span></span> <span class="line" id="L28"> H1: H1.Options = .{},</span> <span class="line" id="L29"> <span class="tok-comment">/// Options for H2.</span></span> <span class="line" id="L30"> H2: H2.Options = .{},</span> <span class="line" id="L31"> };</span> <span class="line" id="L32"></span> <span class="line" id="L33"> <span class="tok-comment">/// Initialize the hash composition with the given options.</span></span> <span class="line" id="L34"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">init</span>(options: Options) Self {</span> <span class="line" id="L35"> <span class="tok-kw">return</span> Self{ .H1 = H1.init(options.H1), .H2 = H2.init(options.H2) };</span> <span class="line" id="L36"> }</span> <span class="line" id="L37"></span> <span class="line" id="L38"> <span class="tok-comment">/// Compute H1(H2(b)).</span></span> <span class="line" id="L39"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">hash</span>(b: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, out: [digest_length]<span class="tok-type">u8</span>, options: Options) <span class="tok-type">void</span> {</span> <span class="line" id="L40"> <span class="tok-kw">var</span> d = Self.init(options);</span> <span class="line" id="L41"> d.update(b);</span> <span class="line" id="L42"> d.final(out);</span> <span class="line" id="L43"> }</span> <span class="line" id="L44"></span> <span class="line" id="L45"> <span class="tok-comment">/// Add content to the hash.</span></span> <span class="line" id="L46"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">update</span>(d: Self, b: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L47"> d.H2.update(b);</span> <span class="line" id="L48"> }</span> <span class="line" id="L49"></span> <span class="line" id="L50"> <span class="tok-comment">/// Compute the final hash for the accumulated content: H1(H2(b)).</span></span> <span class="line" id="L51"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">final</span>(d: Self, out: [digest_length]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L52"> <span class="tok-kw">var</span> H2_digest: [H2.digest_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L53"> d.H2.final(&H2_digest);</span> <span class="line" id="L54"> d.H1.update(&H2_digest);</span> <span class="line" id="L55"> d.H1.final(out);</span> <span class="line" id="L56"> }</span> <span class="line" id="L57"> };</span> <span class="line" id="L58">}</span> <span class="line" id="L59"></span> <span class="line" id="L60"><span class="tok-comment">/// SHA-256(SHA-256())</span></span> <span class="line" id="L61"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Sha256oSha256 = Composition(sha2.Sha256, sha2.Sha256);</span> <span class="line" id="L62"><span class="tok-comment">/// SHA-384(SHA-384())</span></span> <span class="line" id="L63"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Sha384oSha384 = Composition(sha2.Sha384, sha2.Sha384);</span> <span class="line" id="L64"><span class="tok-comment">/// SHA-512(SHA-512())</span></span> <span class="line" id="L65"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Sha512oSha512 = Composition(sha2.Sha512, sha2.Sha512);</span> <span class="line" id="L66"></span> <span class="line" id="L67"><span class="tok-kw">test</span> <span class="tok-str">"Hash composition"</span> {</span> <span class="line" id="L68"> <span class="tok-kw">const</span> Sha256 = sha2.Sha256;</span> <span class="line" id="L69"> <span class="tok-kw">const</span> msg = <span class="tok-str">"test"</span>;</span> <span class="line" id="L70"></span> <span class="line" id="L71"> <span class="tok-kw">var</span> out: [Sha256oSha256.digest_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L72"> Sha256oSha256.hash(msg, &out, .{});</span> <span class="line" id="L73"></span> <span class="line" id="L74"> <span class="tok-kw">var</span> t: [Sha256.digest_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L75"> Sha256.hash(msg, &t, .{});</span> <span class="line" id="L76"> <span class="tok-kw">var</span> out2: [Sha256.digest_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L77"> Sha256.hash(&t, &out2, .{});</span> <span class="line" id="L78"></span> <span class="line" id="L79"> <span class="tok-kw">try</span> std.testing.expectEqualSlices(<span class="tok-type">u8</span>, &out, &out2);</span> <span class="line" id="L80">}</span> <span class="line" id="L81"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/crypto/test.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/test.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/crypto/keccak_p.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/keccak_p.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> assert = std.debug.assert;</span> <span class="line" id="L3"><span class="tok-kw">const</span> math = std.math;</span> <span class="line" id="L4"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L5"></span> <span class="line" id="L6"><span class="tok-comment">/// The Keccak-f permutation.</span></span> <span class="line" id="L7"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">KeccakF</span>(<span class="tok-kw">comptime</span> f: <span class="tok-type">u11</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L8"> <span class="tok-kw">comptime</span> assert(f > <span class="tok-number">200</span> <span class="tok-kw">and</span> f <= <span class="tok-number">1600</span> <span class="tok-kw">and</span> f % <span class="tok-number">200</span> == <span class="tok-number">0</span>); <span class="tok-comment">// invalid bit size</span> </span> <span class="line" id="L9"> <span class="tok-kw">const</span> T = std.meta.Int(.unsigned, f / <span class="tok-number">25</span>);</span> <span class="line" id="L10"> <span class="tok-kw">const</span> Block = [<span class="tok-number">25</span>]T;</span> <span class="line" id="L11"></span> <span class="line" id="L12"> <span class="tok-kw">const</span> PI = [_]<span class="tok-type">u5</span>{</span> <span class="line" id="L13"> <span class="tok-number">10</span>, <span class="tok-number">7</span>, <span class="tok-number">11</span>, <span class="tok-number">17</span>, <span class="tok-number">18</span>, <span class="tok-number">3</span>, <span class="tok-number">5</span>, <span class="tok-number">16</span>, <span class="tok-number">8</span>, <span class="tok-number">21</span>, <span class="tok-number">24</span>, <span class="tok-number">4</span>, <span class="tok-number">15</span>, <span class="tok-number">23</span>, <span class="tok-number">19</span>, <span class="tok-number">13</span>, <span class="tok-number">12</span>, <span class="tok-number">2</span>, <span class="tok-number">20</span>, <span class="tok-number">14</span>, <span class="tok-number">22</span>, <span class="tok-number">9</span>, <span class="tok-number">6</span>, <span class="tok-number">1</span>,</span> <span class="line" id="L14"> };</span> <span class="line" id="L15"></span> <span class="line" id="L16"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L17"> <span class="tok-kw">const</span> Self = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L18"></span> <span class="line" id="L19"> <span class="tok-comment">/// Number of bytes in the state.</span></span> <span class="line" id="L20"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> block_bytes = f / <span class="tok-number">8</span>;</span> <span class="line" id="L21"></span> <span class="line" id="L22"> <span class="tok-comment">/// Maximum number of rounds for the given f parameter.</span></span> <span class="line" id="L23"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> max_rounds = <span class="tok-number">12</span> + <span class="tok-number">2</span> * math.log2(f / <span class="tok-number">25</span>);</span> <span class="line" id="L24"></span> <span class="line" id="L25"> <span class="tok-comment">// Round constants</span> </span> <span class="line" id="L26"> <span class="tok-kw">const</span> RC = rc: {</span> <span class="line" id="L27"> <span class="tok-kw">const</span> RC64 = [_]<span class="tok-type">u64</span>{</span> <span class="line" id="L28"> <span class="tok-number">0x0000000000000001</span>, <span class="tok-number">0x0000000000008082</span>, <span class="tok-number">0x800000000000808a</span>, <span class="tok-number">0x8000000080008000</span>,</span> <span class="line" id="L29"> <span class="tok-number">0x000000000000808b</span>, <span class="tok-number">0x0000000080000001</span>, <span class="tok-number">0x8000000080008081</span>, <span class="tok-number">0x8000000000008009</span>,</span> <span class="line" id="L30"> <span class="tok-number">0x000000000000008a</span>, <span class="tok-number">0x0000000000000088</span>, <span class="tok-number">0x0000000080008009</span>, <span class="tok-number">0x000000008000000a</span>,</span> <span class="line" id="L31"> <span class="tok-number">0x000000008000808b</span>, <span class="tok-number">0x800000000000008b</span>, <span class="tok-number">0x8000000000008089</span>, <span class="tok-number">0x8000000000008003</span>,</span> <span class="line" id="L32"> <span class="tok-number">0x8000000000008002</span>, <span class="tok-number">0x8000000000000080</span>, <span class="tok-number">0x000000000000800a</span>, <span class="tok-number">0x800000008000000a</span>,</span> <span class="line" id="L33"> <span class="tok-number">0x8000000080008081</span>, <span class="tok-number">0x8000000000008080</span>, <span class="tok-number">0x0000000080000001</span>, <span class="tok-number">0x8000000080008008</span>,</span> <span class="line" id="L34"> };</span> <span class="line" id="L35"> <span class="tok-kw">var</span> rc: [max_rounds]T = <span class="tok-null">undefined</span>;</span> <span class="line" id="L36"> <span class="tok-kw">for</span> (&rc, RC64[<span class="tok-number">0</span>..max_rounds]) \|t, c\| t. = <span class="tok-builtin">@as</span>(T, <span class="tok-builtin">@truncate</span>(c));</span> <span class="line" id="L37"> <span class="tok-kw">break</span> :rc rc;</span> <span class="line" id="L38"> };</span> <span class="line" id="L39"></span> <span class="line" id="L40"> st: Block = [_]T{<span class="tok-number">0</span>} ** <span class="tok-number">25</span>,</span> <span class="line" id="L41"></span> <span class="line" id="L42"> <span class="tok-comment">/// Initialize the state from a slice of bytes.</span></span> <span class="line" id="L43"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">init</span>(bytes: [block_bytes]<span class="tok-type">u8</span>) Self {</span> <span class="line" id="L44"> <span class="tok-kw">var</span> self: Self = <span class="tok-null">undefined</span>;</span> <span class="line" id="L45"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (&self.st, <span class="tok-number">0</span>..) \|r, i\| {</span> <span class="line" id="L46"> r. = mem.readIntLittle(T, bytes[<span class="tok-builtin">@sizeOf</span>(T) * i ..][<span class="tok-number">0</span>..<span class="tok-builtin">@sizeOf</span>(T)]);</span> <span class="line" id="L47"> }</span> <span class="line" id="L48"> <span class="tok-kw">return</span> self;</span> <span class="line" id="L49"> }</span> <span class="line" id="L50"></span> <span class="line" id="L51"> <span class="tok-comment">/// A representation of the state as bytes. The byte order is architecture-dependent.</span></span> <span class="line" id="L52"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">asBytes</span>(self: Self) [block_bytes]<span class="tok-type">u8</span> {</span> <span class="line" id="L53"> <span class="tok-kw">return</span> mem.asBytes(&self.st);</span> <span class="line" id="L54"> }</span> <span class="line" id="L55"></span> <span class="line" id="L56"> <span class="tok-comment">/// Byte-swap the entire state if the architecture doesn't match the required endianness.</span></span> <span class="line" id="L57"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">endianSwap</span>(self: Self) <span class="tok-type">void</span> {</span> <span class="line" id="L58"> <span class="tok-kw">for</span> (&self.st) \|w\| {</span> <span class="line" id="L59"> w.* = mem.littleToNative(T, w.);</span> <span class="line" id="L60"> }</span> <span class="line" id="L61"> }</span> <span class="line" id="L62"></span> <span class="line" id="L63"> <span class="tok-comment">/// Set bytes starting at the beginning of the state.</span></span> <span class="line" id="L64"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">setBytes</span>(self: Self, bytes: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L65"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L66"> <span class="tok-kw">while</span> (i + <span class="tok-builtin">@sizeOf</span>(T) <= bytes.len) : (i += <span class="tok-builtin">@sizeOf</span>(T)) {</span> <span class="line" id="L67"> self.st[i / <span class="tok-builtin">@sizeOf</span>(T)] = mem.readIntLittle(T, bytes[i..][<span class="tok-number">0</span>..<span class="tok-builtin">@sizeOf</span>(T)]);</span> <span class="line" id="L68"> }</span> <span class="line" id="L69"> <span class="tok-kw">if</span> (i < bytes.len) {</span> <span class="line" id="L70"> <span class="tok-kw">var</span> padded = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} ** <span class="tok-builtin">@sizeOf</span>(T);</span> <span class="line" id="L71"> <span class="tok-builtin">@memcpy</span>(padded[<span class="tok-number">0</span> .. bytes.len - i], bytes[i..]);</span> <span class="line" id="L72"> self.st[i / <span class="tok-builtin">@sizeOf</span>(T)] = mem.readIntLittle(T, padded[<span class="tok-number">0</span>..]);</span> <span class="line" id="L73"> }</span> <span class="line" id="L74"> }</span> <span class="line" id="L75"></span> <span class="line" id="L76"> <span class="tok-comment">/// XOR a byte into the state at a given offset.</span></span> <span class="line" id="L77"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">addByte</span>(self: Self, byte: <span class="tok-type">u8</span>, offset: <span class="tok-type">usize</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L78"> <span class="tok-kw">const</span> z = <span class="tok-builtin">@sizeOf</span>(T) <span class="tok-builtin">@as</span>(math.Log2Int(T), <span class="tok-builtin">@truncate</span>(offset % <span class="tok-builtin">@sizeOf</span>(T)));</span> <span class="line" id="L79"> self.st[offset / <span class="tok-builtin">@sizeOf</span>(T)] ^= <span class="tok-builtin">@as</span>(T, byte) << z;</span> <span class="line" id="L80"> }</span> <span class="line" id="L81"></span> <span class="line" id="L82"> <span class="tok-comment">/// XOR bytes into the beginning of the state.</span></span> <span class="line" id="L83"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">addBytes</span>(self: Self, bytes: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L84"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L85"> <span class="tok-kw">while</span> (i + <span class="tok-builtin">@sizeOf</span>(T) <= bytes.len) : (i += <span class="tok-builtin">@sizeOf</span>(T)) {</span> <span class="line" id="L86"> self.st[i / <span class="tok-builtin">@sizeOf</span>(T)] ^= mem.readIntLittle(T, bytes[i..][<span class="tok-number">0</span>..<span class="tok-builtin">@sizeOf</span>(T)]);</span> <span class="line" id="L87"> }</span> <span class="line" id="L88"> <span class="tok-kw">if</span> (i < bytes.len) {</span> <span class="line" id="L89"> <span class="tok-kw">var</span> padded = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} * <span class="tok-builtin">@sizeOf</span>(T);</span> <span class="line" id="L90"> <span class="tok-builtin">@memcpy</span>(padded[<span class="tok-number">0</span> .. bytes.len - i], bytes[i..]);</span> <span class="line" id="L91"> self.st[i / <span class="tok-builtin">@sizeOf</span>(T)] ^= mem.readIntLittle(T, padded[<span class="tok-number">0</span>..]);</span> <span class="line" id="L92"> }</span> <span class="line" id="L93"> }</span> <span class="line" id="L94"></span> <span class="line" id="L95"> <span class="tok-comment">/// Extract the first bytes of the state.</span></span> <span class="line" id="L96"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">extractBytes</span>(self: Self, out: []<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L97"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L98"> <span class="tok-kw">while</span> (i + <span class="tok-builtin">@sizeOf</span>(T) <= out.len) : (i += <span class="tok-builtin">@sizeOf</span>(T)) {</span> <span class="line" id="L99"> mem.writeIntLittle(T, out[i..][<span class="tok-number">0</span>..<span class="tok-builtin">@sizeOf</span>(T)], self.st[i / <span class="tok-builtin">@sizeOf</span>(T)]);</span> <span class="line" id="L100"> }</span> <span class="line" id="L101"> <span class="tok-kw">if</span> (i < out.len) {</span> <span class="line" id="L102"> <span class="tok-kw">var</span> padded = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} * <span class="tok-builtin">@sizeOf</span>(T);</span> <span class="line" id="L103"> mem.writeIntLittle(T, padded[<span class="tok-number">0</span>..], self.st[i / <span class="tok-builtin">@sizeOf</span>(T)]);</span> <span class="line" id="L104"> <span class="tok-builtin">@memcpy</span>(out[i..], padded[<span class="tok-number">0</span> .. out.len - i]);</span> <span class="line" id="L105"> }</span> <span class="line" id="L106"> }</span> <span class="line" id="L107"></span> <span class="line" id="L108"> <span class="tok-comment">/// XOR the first bytes of the state into a slice of bytes.</span></span> <span class="line" id="L109"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">xorBytes</span>(self: Self, out: []<span class="tok-type">u8</span>, in: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L110"> assert(out.len == in.len);</span> <span class="line" id="L111"></span> <span class="line" id="L112"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L113"> <span class="tok-kw">while</span> (i + <span class="tok-builtin">@sizeOf</span>(T) <= in.len) : (i += <span class="tok-builtin">@sizeOf</span>(T)) {</span> <span class="line" id="L114"> <span class="tok-kw">const</span> x = mem.readIntNative(T, in[i..][<span class="tok-number">0</span>..<span class="tok-builtin">@sizeOf</span>(T)]) ^ mem.nativeToLittle(T, self.st[i / <span class="tok-builtin">@sizeOf</span>(T)]);</span> <span class="line" id="L115"> mem.writeIntNative(T, out[i..][<span class="tok-number">0</span>..<span class="tok-builtin">@sizeOf</span>(T)], x);</span> <span class="line" id="L116"> }</span> <span class="line" id="L117"> <span class="tok-kw">if</span> (i < in.len) {</span> <span class="line" id="L118"> <span class="tok-kw">var</span> padded = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} * <span class="tok-builtin">@sizeOf</span>(T);</span> <span class="line" id="L119"> <span class="tok-builtin">@memcpy</span>(padded[<span class="tok-number">0</span> .. in.len - i], in[i..]);</span> <span class="line" id="L120"> <span class="tok-kw">const</span> x = mem.readIntNative(T, &padded) ^ mem.nativeToLittle(T, self.st[i / <span class="tok-builtin">@sizeOf</span>(T)]);</span> <span class="line" id="L121"> mem.writeIntNative(T, &padded, x);</span> <span class="line" id="L122"> <span class="tok-builtin">@memcpy</span>(out[i..], padded[<span class="tok-number">0</span> .. in.len - i]);</span> <span class="line" id="L123"> }</span> <span class="line" id="L124"> }</span> <span class="line" id="L125"></span> <span class="line" id="L126"> <span class="tok-comment">/// Set the words storing the bytes of a given range to zero.</span></span> <span class="line" id="L127"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">clear</span>(self: Self, from: <span class="tok-type">usize</span>, to: <span class="tok-type">usize</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L128"> <span class="tok-builtin">@memset</span>(self.st[from / <span class="tok-builtin">@sizeOf</span>(T) .. (to + <span class="tok-builtin">@sizeOf</span>(T) - <span class="tok-number">1</span>) / <span class="tok-builtin">@sizeOf</span>(T)], <span class="tok-number">0</span>);</span> <span class="line" id="L129"> }</span> <span class="line" id="L130"></span> <span class="line" id="L131"> <span class="tok-comment">/// Clear the entire state, disabling compiler optimizations.</span></span> <span class="line" id="L132"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">secureZero</span>(self: Self) <span class="tok-type">void</span> {</span> <span class="line" id="L133"> std.crypto.utils.secureZero(T, &self.st);</span> <span class="line" id="L134"> }</span> <span class="line" id="L135"></span> <span class="line" id="L136"> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">round</span>(self: Self, rc: T) <span class="tok-type">void</span> {</span> <span class="line" id="L137"> <span class="tok-kw">const</span> st = &self.st;</span> <span class="line" id="L138"></span> <span class="line" id="L139"> <span class="tok-comment">// theta</span> </span> <span class="line" id="L140"> <span class="tok-kw">var</span> t = [_]T{<span class="tok-number">0</span>} * <span class="tok-number">5</span>;</span> <span class="line" id="L141"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..<span class="tok-number">5</span>) \|i\| {</span> <span class="line" id="L142"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..<span class="tok-number">5</span>) \|j\| {</span> <span class="line" id="L143"> t[i] ^= st[j * <span class="tok-number">5</span> + i];</span> <span class="line" id="L144"> }</span> <span class="line" id="L145"> }</span> <span class="line" id="L146"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..<span class="tok-number">5</span>) \|i\| {</span> <span class="line" id="L147"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..<span class="tok-number">5</span>) \|j\| {</span> <span class="line" id="L148"> st[j * <span class="tok-number">5</span> + i] ^= t[(i + <span class="tok-number">4</span>) % <span class="tok-number">5</span>] ^ math.rotl(T, t[(i + <span class="tok-number">1</span>) % <span class="tok-number">5</span>], <span class="tok-number">1</span>);</span> <span class="line" id="L149"> }</span> <span class="line" id="L150"> }</span> <span class="line" id="L151"></span> <span class="line" id="L152"> <span class="tok-comment">// rho+pi</span> </span> <span class="line" id="L153"> <span class="tok-kw">var</span> last = st[<span class="tok-number">1</span>];</span> <span class="line" id="L154"> <span class="tok-kw">comptime</span> <span class="tok-kw">var</span> rotc = <span class="tok-number">0</span>;</span> <span class="line" id="L155"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..<span class="tok-number">24</span>) \|i\| {</span> <span class="line" id="L156"> <span class="tok-kw">const</span> x = PI[i];</span> <span class="line" id="L157"> <span class="tok-kw">const</span> tmp = st[x];</span> <span class="line" id="L158"> rotc = (rotc + i + <span class="tok-number">1</span>) % <span class="tok-builtin">@bitSizeOf</span>(T);</span> <span class="line" id="L159"> st[x] = math.rotl(T, last, rotc);</span> <span class="line" id="L160"> last = tmp;</span> <span class="line" id="L161"> }</span> <span class="line" id="L162"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..<span class="tok-number">5</span>) \|i\| {</span> <span class="line" id="L163"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..<span class="tok-number">5</span>) \|j\| {</span> <span class="line" id="L164"> t[j] = st[i * <span class="tok-number">5</span> + j];</span> <span class="line" id="L165"> }</span> <span class="line" id="L166"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (<span class="tok-number">0</span>..<span class="tok-number">5</span>) \|j\| {</span> <span class="line" id="L167"> st[i * <span class="tok-number">5</span> + j] = t[j] ^ (~t[(j + <span class="tok-number">1</span>) % <span class="tok-number">5</span>] & t[(j + <span class="tok-number">2</span>) % <span class="tok-number">5</span>]);</span> <span class="line" id="L168"> }</span> <span class="line" id="L169"> }</span> <span class="line" id="L170"></span> <span class="line" id="L171"> <span class="tok-comment">// iota</span> </span> <span class="line" id="L172"> st[<span class="tok-number">0</span>] ^= rc;</span> <span class="line" id="L173"> }</span> <span class="line" id="L174"></span> <span class="line" id="L175"> <span class="tok-comment">/// Apply a (possibly) reduced-round permutation to the state.</span></span> <span class="line" id="L176"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">permuteR</span>(self: Self, <span class="tok-kw">comptime</span> rounds: <span class="tok-type">u5</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L177"> <span class="tok-kw">var</span> i = RC.len - rounds;</span> <span class="line" id="L178"> <span class="tok-kw">while</span> (i < RC.len - RC.len % <span class="tok-number">3</span>) : (i += <span class="tok-number">3</span>) {</span> <span class="line" id="L179"> self.round(RC[i]);</span> <span class="line" id="L180"> self.round(RC[i + <span class="tok-number">1</span>]);</span> <span class="line" id="L181"> self.round(RC[i + <span class="tok-number">2</span>]);</span> <span class="line" id="L182"> }</span> <span class="line" id="L183"> <span class="tok-kw">while</span> (i < RC.len) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L184"> self.round(RC[i]);</span> <span class="line" id="L185"> }</span> <span class="line" id="L186"> }</span> <span class="line" id="L187"></span> <span class="line" id="L188"> <span class="tok-comment">/// Apply a full-round permutation to the state.</span></span> <span class="line" id="L189"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">permute</span>(self: Self) <span class="tok-type">void</span> {</span> <span class="line" id="L190"> self.permuteR(max_rounds);</span> <span class="line" id="L191"> }</span> <span class="line" id="L192"> };</span> <span class="line" id="L193">}</span> <span class="line" id="L194"></span> <span class="line" id="L195"><span class="tok-comment">/// A generic Keccak-P state.</span></span> <span class="line" id="L196"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">State</span>(<span class="tok-kw">comptime</span> f: <span class="tok-type">u11</span>, <span class="tok-kw">comptime</span> capacity: <span class="tok-type">u11</span>, <span class="tok-kw">comptime</span> delim: <span class="tok-type">u8</span>, <span class="tok-kw">comptime</span> rounds: <span class="tok-type">u5</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L197"> <span class="tok-kw">comptime</span> assert(f > <span class="tok-number">200</span> <span class="tok-kw">and</span> f <= <span class="tok-number">1600</span> <span class="tok-kw">and</span> f % <span class="tok-number">200</span> == <span class="tok-number">0</span>); <span class="tok-comment">// invalid state size</span> </span> <span class="line" id="L198"> <span class="tok-kw">comptime</span> assert(capacity < f <span class="tok-kw">and</span> capacity % <span class="tok-number">8</span> == <span class="tok-number">0</span>); <span class="tok-comment">// invalid capacity size</span> </span> <span class="line" id="L199"></span> <span class="line" id="L200"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L201"> <span class="tok-kw">const</span> Self = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L202"></span> <span class="line" id="L203"> <span class="tok-comment">/// The block length, or rate, in bytes.</span></span> <span class="line" id="L204"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> rate = KeccakF(f).block_bytes - capacity / <span class="tok-number">8</span>;</span> <span class="line" id="L205"> <span class="tok-comment">/// Keccak does not have any options.</span></span> <span class="line" id="L206"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Options = <span class="tok-kw">struct</span> {};</span> <span class="line" id="L207"></span> <span class="line" id="L208"> offset: <span class="tok-type">usize</span> = <span class="tok-number">0</span>,</span> <span class="line" id="L209"> buf: [rate]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>,</span> <span class="line" id="L210"></span> <span class="line" id="L211"> st: KeccakF(f) = .{},</span> <span class="line" id="L212"></span> <span class="line" id="L213"> <span class="tok-comment">/// Absorb a slice of bytes into the sponge.</span></span> <span class="line" id="L214"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">absorb</span>(self: Self, bytes_: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L215"> <span class="tok-kw">var</span> bytes = bytes_;</span> <span class="line" id="L216"> <span class="tok-kw">if</span> (self.offset > <span class="tok-number">0</span>) {</span> <span class="line" id="L217"> <span class="tok-kw">const</span> left = <span class="tok-builtin">@min</span>(rate - self.offset, bytes.len);</span> <span class="line" id="L218"> <span class="tok-builtin">@memcpy</span>(self.buf[self.offset..][<span class="tok-number">0</span>..left], bytes[<span class="tok-number">0</span>..left]);</span> <span class="line" id="L219"> self.offset += left;</span> <span class="line" id="L220"> <span class="tok-kw">if</span> (self.offset == rate) {</span> <span class="line" id="L221"> self.offset = <span class="tok-number">0</span>;</span> <span class="line" id="L222"> self.st.addBytes(self.buf[<span class="tok-number">0</span>..]);</span> <span class="line" id="L223"> self.st.permuteR(rounds);</span> <span class="line" id="L224"> }</span> <span class="line" id="L225"> <span class="tok-kw">if</span> (left == bytes.len) <span class="tok-kw">return</span>;</span> <span class="line" id="L226"> bytes = bytes[left..];</span> <span class="line" id="L227"> }</span> <span class="line" id="L228"> <span class="tok-kw">while</span> (bytes.len >= rate) {</span> <span class="line" id="L229"> self.st.addBytes(bytes[<span class="tok-number">0</span>..rate]);</span> <span class="line" id="L230"> self.st.permuteR(rounds);</span> <span class="line" id="L231"> bytes = bytes[rate..];</span> <span class="line" id="L232"> }</span> <span class="line" id="L233"> <span class="tok-kw">if</span> (bytes.len > <span class="tok-number">0</span>) {</span> <span class="line" id="L234"> <span class="tok-builtin">@memcpy</span>(self.buf[<span class="tok-number">0</span>..bytes.len], bytes);</span> <span class="line" id="L235"> self.offset = bytes.len;</span> <span class="line" id="L236"> }</span> <span class="line" id="L237"> }</span> <span class="line" id="L238"></span> <span class="line" id="L239"> <span class="tok-comment">/// Mark the end of the input.</span></span> <span class="line" id="L240"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">pad</span>(self: Self) <span class="tok-type">void</span> {</span> <span class="line" id="L241"> self.st.addBytes(self.buf[<span class="tok-number">0</span>..self.offset]);</span> <span class="line" id="L242"> self.st.addByte(delim, self.offset);</span> <span class="line" id="L243"> self.st.addByte(<span class="tok-number">0x80</span>, rate - <span class="tok-number">1</span>);</span> <span class="line" id="L244"> self.st.permuteR(rounds);</span> <span class="line" id="L245"> self.offset = <span class="tok-number">0</span>;</span> <span class="line" id="L246"> }</span> <span class="line" id="L247"></span> <span class="line" id="L248"> <span class="tok-comment">/// Squeeze a slice of bytes from the sponge.</span></span> <span class="line" id="L249"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">squeeze</span>(self: *Self, out: []<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L250"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L251"> <span class="tok-kw">while</span> (i < out.len) : (i += rate) {</span> <span class="line" id="L252"> <span class="tok-kw">const</span> left = <span class="tok-builtin">@min</span>(rate, out.len - i);</span> <span class="line" id="L253"> self.st.extractBytes(out[i..][<span class="tok-number">0</span>..left]);</span> <span class="line" id="L254"> self.st.permuteR(rounds);</span> <span class="line" id="L255"> }</span> <span class="line" id="L256"> }</span> <span class="line" id="L257"> };</span> <span class="line" id="L258">}</span> <span class="line" id="L259"></span> <span class="line" id="L260"><span class="tok-kw">test</span> <span class="tok-str">"Keccak-f800"</span> {</span> <span class="line" id="L261"> <span class="tok-kw">var</span> st: KeccakF(<span class="tok-number">800</span>) = .{</span> <span class="line" id="L262"> .st = .{</span> <span class="line" id="L263"> <span class="tok-number">0xE531D45D</span>, <span class="tok-number">0xF404C6FB</span>, <span class="tok-number">0x23A0BF99</span>, <span class="tok-number">0xF1F8452F</span>, <span class="tok-number">0x51FFD042</span>, <span class="tok-number">0xE539F578</span>, <span class="tok-number">0xF00B80A7</span>,</span> <span class="line" id="L264"> <span class="tok-number">0xAF973664</span>, <span class="tok-number">0xBF5AF34C</span>, <span class="tok-number">0x227A2424</span>, <span class="tok-number">0x88172715</span>, <span class="tok-number">0x9F685884</span>, <span class="tok-number">0xB15CD054</span>, <span class="tok-number">0x1BF4FC0E</span>,</span> <span class="line" id="L265"> <span class="tok-number">0x6166FA91</span>, <span class="tok-number">0x1A9E599A</span>, <span class="tok-number">0xA3970A1F</span>, <span class="tok-number">0xAB659687</span>, <span class="tok-number">0xAFAB8D68</span>, <span class="tok-number">0xE74B1015</span>, <span class="tok-number">0x34001A98</span>,</span> <span class="line" id="L266"> <span class="tok-number">0x4119EFF3</span>, <span class="tok-number">0x930A0E76</span>, <span class="tok-number">0x87B28070</span>, <span class="tok-number">0x11EFE996</span>,</span> <span class="line" id="L267"> },</span> <span class="line" id="L268"> };</span> <span class="line" id="L269"> st.permute();</span> <span class="line" id="L270"> <span class="tok-kw">const</span> expected: [<span class="tok-number">25</span>]<span class="tok-type">u32</span> = .{</span> <span class="line" id="L271"> <span class="tok-number">0x75BF2D0D</span>, <span class="tok-number">0x9B610E89</span>, <span class="tok-number">0xC826AF40</span>, <span class="tok-number">0x64CD84AB</span>, <span class="tok-number">0xF905BDD6</span>, <span class="tok-number">0xBC832835</span>, <span class="tok-number">0x5F8001B9</span>,</span> <span class="line" id="L272"> <span class="tok-number">0x15662CCE</span>, <span class="tok-number">0x8E38C95E</span>, <span class="tok-number">0x701FE543</span>, <span class="tok-number">0x1B544380</span>, <span class="tok-number">0x89ACDEFF</span>, <span class="tok-number">0x51EDB5DE</span>, <span class="tok-number">0x0E9702D9</span>,</span> <span class="line" id="L273"> <span class="tok-number">0x6C19AA16</span>, <span class="tok-number">0xA2913EEE</span>, <span class="tok-number">0x60754E9A</span>, <span class="tok-number">0x9819063C</span>, <span class="tok-number">0xF4709254</span>, <span class="tok-number">0xD09F9084</span>, <span class="tok-number">0x772DA259</span>,</span> <span class="line" id="L274"> <span class="tok-number">0x1DB35DF7</span>, <span class="tok-number">0x5AA60162</span>, <span class="tok-number">0x358825D5</span>, <span class="tok-number">0xB3783BAB</span>,</span> <span class="line" id="L275"> };</span> <span class="line" id="L276"> <span class="tok-kw">try</span> std.testing.expectEqualSlices(<span class="tok-type">u32</span>, &st.st, &expected);</span> <span class="line" id="L277">}</span> <span class="line" id="L278"></span> </code></pre></body> </html>
repos/yazap/docs/src/std/crypto	repos/yazap/docs/src/std/crypto/Certificate/Bundle.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/Certificate/Bundle.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-comment">//! A set of certificates. Typically pre-installed on every operating system,</span></span> <span class="line" id="L2"><span class="tok-comment">//! these are "Certificate Authorities" used to validate SSL certificates.</span></span> <span class="line" id="L3"><span class="tok-comment">//! This data structure stores certificates in DER-encoded form, all of them</span></span> <span class="line" id="L4"><span class="tok-comment">//! concatenated together in the `bytes` array. The `map` field contains an</span></span> <span class="line" id="L5"><span class="tok-comment">//! index from the DER-encoded subject name to the index of the containing</span></span> <span class="line" id="L6"><span class="tok-comment">//! certificate within `bytes`.</span></span> <span class="line" id="L7"></span> <span class="line" id="L8"><span class="tok-comment">/// The key is the contents slice of the subject.</span></span> <span class="line" id="L9">map: std.HashMapUnmanaged(der.Element.Slice, <span class="tok-type">u32</span>, MapContext, std.hash_map.default_max_load_percentage) = .{},</span> <span class="line" id="L10">bytes: std.ArrayListUnmanaged(<span class="tok-type">u8</span>) = .{},</span> <span class="line" id="L11"></span> <span class="line" id="L12"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> VerifyError = Certificate.Parsed.VerifyError \|\| <span class="tok-kw">error</span>{</span> <span class="line" id="L13"> CertificateIssuerNotFound,</span> <span class="line" id="L14">};</span> <span class="line" id="L15"></span> <span class="line" id="L16"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">verify</span>(cb: Bundle, subject: Certificate.Parsed, now_sec: <span class="tok-type">i64</span>) VerifyError!<span class="tok-type">void</span> {</span> <span class="line" id="L17"> <span class="tok-kw">const</span> bytes_index = cb.find(subject.issuer()) <span class="tok-kw">orelse</span> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificateIssuerNotFound;</span> <span class="line" id="L18"> <span class="tok-kw">const</span> issuer_cert: Certificate = .{</span> <span class="line" id="L19"> .buffer = cb.bytes.items,</span> <span class="line" id="L20"> .index = bytes_index,</span> <span class="line" id="L21"> };</span> <span class="line" id="L22"> <span class="tok-comment">// Every certificate in the bundle is pre-parsed before adding it, ensuring</span> </span> <span class="line" id="L23"> <span class="tok-comment">// that parsing will succeed here.</span> </span> <span class="line" id="L24"> <span class="tok-kw">const</span> issuer = issuer_cert.parse() <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L25"> <span class="tok-kw">try</span> subject.verify(issuer, now_sec);</span> <span class="line" id="L26">}</span> <span class="line" id="L27"></span> <span class="line" id="L28"><span class="tok-comment">/// The returned bytes become invalid after calling any of the rescan functions</span></span> <span class="line" id="L29"><span class="tok-comment">/// or add functions.</span></span> <span class="line" id="L30"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">find</span>(cb: Bundle, subject_name: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) ?<span class="tok-type">u32</span> {</span> <span class="line" id="L31"> <span class="tok-kw">const</span> Adapter = <span class="tok-kw">struct</span> {</span> <span class="line" id="L32"> cb: Bundle,</span> <span class="line" id="L33"></span> <span class="line" id="L34"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">hash</span>(ctx: <span class="tok-builtin">@This</span>(), k: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">u64</span> {</span> <span class="line" id="L35"> _ = ctx;</span> <span class="line" id="L36"> <span class="tok-kw">return</span> std.hash_map.hashString(k);</span> <span class="line" id="L37"> }</span> <span class="line" id="L38"></span> <span class="line" id="L39"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">eql</span>(ctx: <span class="tok-builtin">@This</span>(), a: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, b_key: der.Element.Slice) <span class="tok-type">bool</span> {</span> <span class="line" id="L40"> <span class="tok-kw">const</span> b = ctx.cb.bytes.items[b_key.start..b_key.end];</span> <span class="line" id="L41"> <span class="tok-kw">return</span> mem.eql(<span class="tok-type">u8</span>, a, b);</span> <span class="line" id="L42"> }</span> <span class="line" id="L43"> };</span> <span class="line" id="L44"> <span class="tok-kw">return</span> cb.map.getAdapted(subject_name, Adapter{ .cb = cb });</span> <span class="line" id="L45">}</span> <span class="line" id="L46"></span> <span class="line" id="L47"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">deinit</span>(cb: Bundle, gpa: Allocator) <span class="tok-type">void</span> {</span> <span class="line" id="L48"> cb.map.deinit(gpa);</span> <span class="line" id="L49"> cb.bytes.deinit(gpa);</span> <span class="line" id="L50"> cb. = <span class="tok-null">undefined</span>;</span> <span class="line" id="L51">}</span> <span class="line" id="L52"></span> <span class="line" id="L53"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> RescanError = RescanLinuxError \|\| RescanMacError \|\| RescanBSDError \|\| RescanWindowsError;</span> <span class="line" id="L54"></span> <span class="line" id="L55"><span class="tok-comment">/// Clears the set of certificates and then scans the host operating system</span></span> <span class="line" id="L56"><span class="tok-comment">/// file system standard locations for certificates.</span></span> <span class="line" id="L57"><span class="tok-comment">/// For operating systems that do not have standard CA installations to be</span></span> <span class="line" id="L58"><span class="tok-comment">/// found, this function clears the set of certificates.</span></span> <span class="line" id="L59"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">rescan</span>(cb: Bundle, gpa: Allocator) RescanError!<span class="tok-type">void</span> {</span> <span class="line" id="L60"> <span class="tok-kw">switch</span> (builtin.os.tag) {</span> <span class="line" id="L61"> .linux => <span class="tok-kw">return</span> rescanLinux(cb, gpa),</span> <span class="line" id="L62"> .macos => <span class="tok-kw">return</span> rescanMac(cb, gpa),</span> <span class="line" id="L63"> .freebsd, .openbsd => <span class="tok-kw">return</span> rescanBSD(cb, gpa, <span class="tok-str">"/etc/ssl/cert.pem"</span>),</span> <span class="line" id="L64"> .netbsd => <span class="tok-kw">return</span> rescanBSD(cb, gpa, <span class="tok-str">"/etc/openssl/certs/ca-certificates.crt"</span>),</span> <span class="line" id="L65"> .dragonfly => <span class="tok-kw">return</span> rescanBSD(cb, gpa, <span class="tok-str">"/usr/local/etc/ssl/cert.pem"</span>),</span> <span class="line" id="L66"> .windows => <span class="tok-kw">return</span> rescanWindows(cb, gpa),</span> <span class="line" id="L67"> <span class="tok-kw">else</span> => {},</span> <span class="line" id="L68"> }</span> <span class="line" id="L69">}</span> <span class="line" id="L70"></span> <span class="line" id="L71"><span class="tok-kw">const</span> rescanMac = <span class="tok-builtin">@import</span>(<span class="tok-str">"Bundle/macos.zig"</span>).rescanMac;</span> <span class="line" id="L72"><span class="tok-kw">const</span> RescanMacError = <span class="tok-builtin">@import</span>(<span class="tok-str">"Bundle/macos.zig"</span>).RescanMacError;</span> <span class="line" id="L73"></span> <span class="line" id="L74"><span class="tok-kw">const</span> RescanLinuxError = AddCertsFromFilePathError \|\| AddCertsFromDirPathError;</span> <span class="line" id="L75"></span> <span class="line" id="L76"><span class="tok-kw">fn</span> <span class="tok-fn">rescanLinux</span>(cb: Bundle, gpa: Allocator) RescanLinuxError!<span class="tok-type">void</span> {</span> <span class="line" id="L77"> <span class="tok-comment">// Possible certificate files; stop after finding one.</span> </span> <span class="line" id="L78"> <span class="tok-kw">const</span> cert_file_paths = [_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{</span> <span class="line" id="L79"> <span class="tok-str">"/etc/ssl/certs/ca-certificates.crt"</span>, <span class="tok-comment">// Debian/Ubuntu/Gentoo etc.</span> </span> <span class="line" id="L80"> <span class="tok-str">"/etc/pki/tls/certs/ca-bundle.crt"</span>, <span class="tok-comment">// Fedora/RHEL 6</span> </span> <span class="line" id="L81"> <span class="tok-str">"/etc/ssl/ca-bundle.pem"</span>, <span class="tok-comment">// OpenSUSE</span> </span> <span class="line" id="L82"> <span class="tok-str">"/etc/pki/tls/cacert.pem"</span>, <span class="tok-comment">// OpenELEC</span> </span> <span class="line" id="L83"> <span class="tok-str">"/etc/pki/ca-trust/extracted/pem/tls-ca-bundle.pem"</span>, <span class="tok-comment">// CentOS/RHEL 7</span> </span> <span class="line" id="L84"> <span class="tok-str">"/etc/ssl/cert.pem"</span>, <span class="tok-comment">// Alpine Linux</span> </span> <span class="line" id="L85"> };</span> <span class="line" id="L86"></span> <span class="line" id="L87"> <span class="tok-comment">// Possible directories with certificate files; all will be read.</span> </span> <span class="line" id="L88"> <span class="tok-kw">const</span> cert_dir_paths = [_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{</span> <span class="line" id="L89"> <span class="tok-str">"/etc/ssl/certs"</span>, <span class="tok-comment">// SLES10/SLES11</span> </span> <span class="line" id="L90"> <span class="tok-str">"/etc/pki/tls/certs"</span>, <span class="tok-comment">// Fedora/RHEL</span> </span> <span class="line" id="L91"> <span class="tok-str">"/system/etc/security/cacerts"</span>, <span class="tok-comment">// Android</span> </span> <span class="line" id="L92"> };</span> <span class="line" id="L93"></span> <span class="line" id="L94"> cb.bytes.clearRetainingCapacity();</span> <span class="line" id="L95"> cb.map.clearRetainingCapacity();</span> <span class="line" id="L96"></span> <span class="line" id="L97"> scan: {</span> <span class="line" id="L98"> <span class="tok-kw">for</span> (cert_file_paths) \|cert_file_path\| {</span> <span class="line" id="L99"> <span class="tok-kw">if</span> (addCertsFromFilePathAbsolute(cb, gpa, cert_file_path)) \|_\| {</span> <span class="line" id="L100"> <span class="tok-kw">break</span> :scan;</span> <span class="line" id="L101"> } <span class="tok-kw">else</span> \|err\| <span class="tok-kw">switch</span> (err) {</span> <span class="line" id="L102"> <span class="tok-kw">error</span>.FileNotFound => <span class="tok-kw">continue</span>,</span> <span class="line" id="L103"> <span class="tok-kw">else</span> => \|e\| <span class="tok-kw">return</span> e,</span> <span class="line" id="L104"> }</span> <span class="line" id="L105"> }</span> <span class="line" id="L106"></span> <span class="line" id="L107"> <span class="tok-kw">for</span> (cert_dir_paths) \|cert_dir_path\| {</span> <span class="line" id="L108"> addCertsFromDirPathAbsolute(cb, gpa, cert_dir_path) <span class="tok-kw">catch</span> \|err\| <span class="tok-kw">switch</span> (err) {</span> <span class="line" id="L109"> <span class="tok-kw">error</span>.FileNotFound => <span class="tok-kw">continue</span>,</span> <span class="line" id="L110"> <span class="tok-kw">else</span> => \|e\| <span class="tok-kw">return</span> e,</span> <span class="line" id="L111"> };</span> <span class="line" id="L112"> }</span> <span class="line" id="L113"> }</span> <span class="line" id="L114"></span> <span class="line" id="L115"> cb.bytes.shrinkAndFree(gpa, cb.bytes.items.len);</span> <span class="line" id="L116">}</span> <span class="line" id="L117"></span> <span class="line" id="L118"><span class="tok-kw">const</span> RescanBSDError = AddCertsFromFilePathError;</span> <span class="line" id="L119"></span> <span class="line" id="L120"><span class="tok-kw">fn</span> <span class="tok-fn">rescanBSD</span>(cb: Bundle, gpa: Allocator, cert_file_path: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) RescanBSDError!<span class="tok-type">void</span> {</span> <span class="line" id="L121"> cb.bytes.clearRetainingCapacity();</span> <span class="line" id="L122"> cb.map.clearRetainingCapacity();</span> <span class="line" id="L123"> <span class="tok-kw">try</span> addCertsFromFilePathAbsolute(cb, gpa, cert_file_path);</span> <span class="line" id="L124"> cb.bytes.shrinkAndFree(gpa, cb.bytes.items.len);</span> <span class="line" id="L125">}</span> <span class="line" id="L126"></span> <span class="line" id="L127"><span class="tok-kw">const</span> RescanWindowsError = Allocator.Error \|\| ParseCertError \|\| std.os.UnexpectedError \|\| <span class="tok-kw">error</span>{FileNotFound};</span> <span class="line" id="L128"></span> <span class="line" id="L129"><span class="tok-kw">fn</span> <span class="tok-fn">rescanWindows</span>(cb: Bundle, gpa: Allocator) RescanWindowsError!<span class="tok-type">void</span> {</span> <span class="line" id="L130"> cb.bytes.clearRetainingCapacity();</span> <span class="line" id="L131"> cb.map.clearRetainingCapacity();</span> <span class="line" id="L132"></span> <span class="line" id="L133"> <span class="tok-kw">const</span> w = std.os.windows;</span> <span class="line" id="L134"> <span class="tok-kw">const</span> GetLastError = w.kernel32.GetLastError;</span> <span class="line" id="L135"> <span class="tok-kw">const</span> root = [<span class="tok-number">4</span>:<span class="tok-number">0</span>]<span class="tok-type">u16</span>{ <span class="tok-str">'R'</span>, <span class="tok-str">'O'</span>, <span class="tok-str">'O'</span>, <span class="tok-str">'T'</span> };</span> <span class="line" id="L136"> <span class="tok-kw">const</span> store = w.crypt32.CertOpenSystemStoreW(<span class="tok-null">null</span>, &root) <span class="tok-kw">orelse</span> <span class="tok-kw">switch</span> (GetLastError()) {</span> <span class="line" id="L137"> .FILE_NOT_FOUND => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.FileNotFound,</span> <span class="line" id="L138"> <span class="tok-kw">else</span> => \|err\| <span class="tok-kw">return</span> w.unexpectedError(err),</span> <span class="line" id="L139"> };</span> <span class="line" id="L140"> <span class="tok-kw">defer</span> _ = w.crypt32.CertCloseStore(store, <span class="tok-number">0</span>);</span> <span class="line" id="L141"></span> <span class="line" id="L142"> <span class="tok-kw">const</span> now_sec = std.time.timestamp();</span> <span class="line" id="L143"></span> <span class="line" id="L144"> <span class="tok-kw">var</span> ctx = w.crypt32.CertEnumCertificatesInStore(store, <span class="tok-null">null</span>);</span> <span class="line" id="L145"> <span class="tok-kw">while</span> (ctx) \|context\| : (ctx = w.crypt32.CertEnumCertificatesInStore(store, ctx)) {</span> <span class="line" id="L146"> <span class="tok-kw">const</span> decoded_start = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(cb.bytes.items.len));</span> <span class="line" id="L147"> <span class="tok-kw">const</span> encoded_cert = context.pbCertEncoded[<span class="tok-number">0</span>..context.cbCertEncoded];</span> <span class="line" id="L148"> <span class="tok-kw">try</span> cb.bytes.appendSlice(gpa, encoded_cert);</span> <span class="line" id="L149"> <span class="tok-kw">try</span> cb.parseCert(gpa, decoded_start, now_sec);</span> <span class="line" id="L150"> }</span> <span class="line" id="L151"> cb.bytes.shrinkAndFree(gpa, cb.bytes.items.len);</span> <span class="line" id="L152">}</span> <span class="line" id="L153"></span> <span class="line" id="L154"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> AddCertsFromDirPathError = fs.File.OpenError \|\| AddCertsFromDirError;</span> <span class="line" id="L155"></span> <span class="line" id="L156"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">addCertsFromDirPath</span>(</span> <span class="line" id="L157"> cb: Bundle,</span> <span class="line" id="L158"> gpa: Allocator,</span> <span class="line" id="L159"> dir: fs.Dir,</span> <span class="line" id="L160"> sub_dir_path: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L161">) AddCertsFromDirPathError!<span class="tok-type">void</span> {</span> <span class="line" id="L162"> <span class="tok-kw">var</span> iterable_dir = <span class="tok-kw">try</span> dir.openIterableDir(sub_dir_path, .{});</span> <span class="line" id="L163"> <span class="tok-kw">defer</span> iterable_dir.close();</span> <span class="line" id="L164"> <span class="tok-kw">return</span> addCertsFromDir(cb, gpa, iterable_dir);</span> <span class="line" id="L165">}</span> <span class="line" id="L166"></span> <span class="line" id="L167"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">addCertsFromDirPathAbsolute</span>(</span> <span class="line" id="L168"> cb: Bundle,</span> <span class="line" id="L169"> gpa: Allocator,</span> <span class="line" id="L170"> abs_dir_path: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L171">) AddCertsFromDirPathError!<span class="tok-type">void</span> {</span> <span class="line" id="L172"> assert(fs.path.isAbsolute(abs_dir_path));</span> <span class="line" id="L173"> <span class="tok-kw">var</span> iterable_dir = <span class="tok-kw">try</span> fs.openIterableDirAbsolute(abs_dir_path, .{});</span> <span class="line" id="L174"> <span class="tok-kw">defer</span> iterable_dir.close();</span> <span class="line" id="L175"> <span class="tok-kw">return</span> addCertsFromDir(cb, gpa, iterable_dir);</span> <span class="line" id="L176">}</span> <span class="line" id="L177"></span> <span class="line" id="L178"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> AddCertsFromDirError = AddCertsFromFilePathError;</span> <span class="line" id="L179"></span> <span class="line" id="L180"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">addCertsFromDir</span>(cb: Bundle, gpa: Allocator, iterable_dir: fs.IterableDir) AddCertsFromDirError!<span class="tok-type">void</span> {</span> <span class="line" id="L181"> <span class="tok-kw">var</span> it = iterable_dir.iterate();</span> <span class="line" id="L182"> <span class="tok-kw">while</span> (<span class="tok-kw">try</span> it.next()) \|entry\| {</span> <span class="line" id="L183"> <span class="tok-kw">switch</span> (entry.kind) {</span> <span class="line" id="L184"> .file, .sym_link => {},</span> <span class="line" id="L185"> <span class="tok-kw">else</span> => <span class="tok-kw">continue</span>,</span> <span class="line" id="L186"> }</span> <span class="line" id="L187"></span> <span class="line" id="L188"> <span class="tok-kw">try</span> addCertsFromFilePath(cb, gpa, iterable_dir.dir, entry.name);</span> <span class="line" id="L189"> }</span> <span class="line" id="L190">}</span> <span class="line" id="L191"></span> <span class="line" id="L192"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> AddCertsFromFilePathError = fs.File.OpenError \|\| AddCertsFromFileError;</span> <span class="line" id="L193"></span> <span class="line" id="L194"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">addCertsFromFilePathAbsolute</span>(</span> <span class="line" id="L195"> cb: Bundle,</span> <span class="line" id="L196"> gpa: Allocator,</span> <span class="line" id="L197"> abs_file_path: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L198">) AddCertsFromFilePathError!<span class="tok-type">void</span> {</span> <span class="line" id="L199"> assert(fs.path.isAbsolute(abs_file_path));</span> <span class="line" id="L200"> <span class="tok-kw">var</span> file = <span class="tok-kw">try</span> fs.openFileAbsolute(abs_file_path, .{});</span> <span class="line" id="L201"> <span class="tok-kw">defer</span> file.close();</span> <span class="line" id="L202"> <span class="tok-kw">return</span> addCertsFromFile(cb, gpa, file);</span> <span class="line" id="L203">}</span> <span class="line" id="L204"></span> <span class="line" id="L205"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">addCertsFromFilePath</span>(</span> <span class="line" id="L206"> cb: Bundle,</span> <span class="line" id="L207"> gpa: Allocator,</span> <span class="line" id="L208"> dir: fs.Dir,</span> <span class="line" id="L209"> sub_file_path: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L210">) AddCertsFromFilePathError!<span class="tok-type">void</span> {</span> <span class="line" id="L211"> <span class="tok-kw">var</span> file = <span class="tok-kw">try</span> dir.openFile(sub_file_path, .{});</span> <span class="line" id="L212"> <span class="tok-kw">defer</span> file.close();</span> <span class="line" id="L213"> <span class="tok-kw">return</span> addCertsFromFile(cb, gpa, file);</span> <span class="line" id="L214">}</span> <span class="line" id="L215"></span> <span class="line" id="L216"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> AddCertsFromFileError = Allocator.Error \|\| fs.File.GetSeekPosError \|\| fs.File.ReadError \|\| ParseCertError \|\| std.base64.Error \|\| <span class="tok-kw">error</span>{ CertificateAuthorityBundleTooBig, MissingEndCertificateMarker };</span> <span class="line" id="L217"></span> <span class="line" id="L218"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">addCertsFromFile</span>(cb: Bundle, gpa: Allocator, file: fs.File) AddCertsFromFileError!<span class="tok-type">void</span> {</span> <span class="line" id="L219"> <span class="tok-kw">const</span> size = <span class="tok-kw">try</span> file.getEndPos();</span> <span class="line" id="L220"></span> <span class="line" id="L221"> <span class="tok-comment">// We borrow `bytes` as a temporary buffer for the base64-encoded data.</span> </span> <span class="line" id="L222"> <span class="tok-comment">// This is possible by computing the decoded length and reserving the space</span> </span> <span class="line" id="L223"> <span class="tok-comment">// for the decoded bytes first.</span> </span> <span class="line" id="L224"> <span class="tok-kw">const</span> decoded_size_upper_bound = size / <span class="tok-number">4</span> * <span class="tok-number">3</span>;</span> <span class="line" id="L225"> <span class="tok-kw">const</span> needed_capacity = std.math.cast(<span class="tok-type">u32</span>, decoded_size_upper_bound + size) <span class="tok-kw">orelse</span></span> <span class="line" id="L226"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificateAuthorityBundleTooBig;</span> <span class="line" id="L227"> <span class="tok-kw">try</span> cb.bytes.ensureUnusedCapacity(gpa, needed_capacity);</span> <span class="line" id="L228"> <span class="tok-kw">const</span> end_reserved = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(cb.bytes.items.len + decoded_size_upper_bound));</span> <span class="line" id="L229"> <span class="tok-kw">const</span> buffer = cb.bytes.allocatedSlice()[end_reserved..];</span> <span class="line" id="L230"> <span class="tok-kw">const</span> end_index = <span class="tok-kw">try</span> file.readAll(buffer);</span> <span class="line" id="L231"> <span class="tok-kw">const</span> encoded_bytes = buffer[<span class="tok-number">0</span>..end_index];</span> <span class="line" id="L232"></span> <span class="line" id="L233"> <span class="tok-kw">const</span> begin_marker = <span class="tok-str">"-----BEGIN CERTIFICATE-----"</span>;</span> <span class="line" id="L234"> <span class="tok-kw">const</span> end_marker = <span class="tok-str">"-----END CERTIFICATE-----"</span>;</span> <span class="line" id="L235"></span> <span class="line" id="L236"> <span class="tok-kw">const</span> now_sec = std.time.timestamp();</span> <span class="line" id="L237"></span> <span class="line" id="L238"> <span class="tok-kw">var</span> start_index: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L239"> <span class="tok-kw">while</span> (mem.indexOfPos(<span class="tok-type">u8</span>, encoded_bytes, start_index, begin_marker)) \|begin_marker_start\| {</span> <span class="line" id="L240"> <span class="tok-kw">const</span> cert_start = begin_marker_start + begin_marker.len;</span> <span class="line" id="L241"> <span class="tok-kw">const</span> cert_end = mem.indexOfPos(<span class="tok-type">u8</span>, encoded_bytes, cert_start, end_marker) <span class="tok-kw">orelse</span></span> <span class="line" id="L242"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.MissingEndCertificateMarker;</span> <span class="line" id="L243"> start_index = cert_end + end_marker.len;</span> <span class="line" id="L244"> <span class="tok-kw">const</span> encoded_cert = mem.trim(<span class="tok-type">u8</span>, encoded_bytes[cert_start..cert_end], <span class="tok-str">" \t\r\n"</span>);</span> <span class="line" id="L245"> <span class="tok-kw">const</span> decoded_start = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(cb.bytes.items.len));</span> <span class="line" id="L246"> <span class="tok-kw">const</span> dest_buf = cb.bytes.allocatedSlice()[decoded_start..];</span> <span class="line" id="L247"> cb.bytes.items.len += <span class="tok-kw">try</span> base64.decode(dest_buf, encoded_cert);</span> <span class="line" id="L248"> <span class="tok-kw">try</span> cb.parseCert(gpa, decoded_start, now_sec);</span> <span class="line" id="L249"> }</span> <span class="line" id="L250">}</span> <span class="line" id="L251"></span> <span class="line" id="L252"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> ParseCertError = Allocator.Error \|\| Certificate.ParseError;</span> <span class="line" id="L253"></span> <span class="line" id="L254"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">parseCert</span>(cb: Bundle, gpa: Allocator, decoded_start: <span class="tok-type">u32</span>, now_sec: <span class="tok-type">i64</span>) ParseCertError!<span class="tok-type">void</span> {</span> <span class="line" id="L255"> <span class="tok-comment">// Even though we could only partially parse the certificate to find</span> </span> <span class="line" id="L256"> <span class="tok-comment">// the subject name, we pre-parse all of them to make sure and only</span> </span> <span class="line" id="L257"> <span class="tok-comment">// include in the bundle ones that we know will parse. This way we can</span> </span> <span class="line" id="L258"> <span class="tok-comment">// use `catch unreachable` later.</span> </span> <span class="line" id="L259"> <span class="tok-kw">const</span> parsed_cert = Certificate.parse(.{</span> <span class="line" id="L260"> .buffer = cb.bytes.items,</span> <span class="line" id="L261"> .index = decoded_start,</span> <span class="line" id="L262"> }) <span class="tok-kw">catch</span> \|err\| <span class="tok-kw">switch</span> (err) {</span> <span class="line" id="L263"> <span class="tok-kw">error</span>.CertificateHasUnrecognizedObjectId => {</span> <span class="line" id="L264"> cb.bytes.items.len = decoded_start;</span> <span class="line" id="L265"> <span class="tok-kw">return</span>;</span> <span class="line" id="L266"> },</span> <span class="line" id="L267"> <span class="tok-kw">else</span> => \|e\| <span class="tok-kw">return</span> e,</span> <span class="line" id="L268"> };</span> <span class="line" id="L269"> <span class="tok-kw">if</span> (now_sec > parsed_cert.validity.not_after) {</span> <span class="line" id="L270"> <span class="tok-comment">// Ignore expired cert.</span> </span> <span class="line" id="L271"> cb.bytes.items.len = decoded_start;</span> <span class="line" id="L272"> <span class="tok-kw">return</span>;</span> <span class="line" id="L273"> }</span> <span class="line" id="L274"> <span class="tok-kw">const</span> gop = <span class="tok-kw">try</span> cb.map.getOrPutContext(gpa, parsed_cert.subject_slice, .{ .cb = cb });</span> <span class="line" id="L275"> <span class="tok-kw">if</span> (gop.found_existing) {</span> <span class="line" id="L276"> cb.bytes.items.len = decoded_start;</span> <span class="line" id="L277"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L278"> gop.value_ptr. = decoded_start;</span> <span class="line" id="L279"> }</span> <span class="line" id="L280">}</span> <span class="line" id="L281"></span> <span class="line" id="L282"><span class="tok-kw">const</span> builtin = <span class="tok-builtin">@import</span>(<span class="tok-str">"builtin"</span>);</span> <span class="line" id="L283"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"../../std.zig"</span>);</span> <span class="line" id="L284"><span class="tok-kw">const</span> assert = std.debug.assert;</span> <span class="line" id="L285"><span class="tok-kw">const</span> fs = std.fs;</span> <span class="line" id="L286"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L287"><span class="tok-kw">const</span> crypto = std.crypto;</span> <span class="line" id="L288"><span class="tok-kw">const</span> Allocator = std.mem.Allocator;</span> <span class="line" id="L289"><span class="tok-kw">const</span> Certificate = std.crypto.Certificate;</span> <span class="line" id="L290"><span class="tok-kw">const</span> der = Certificate.der;</span> <span class="line" id="L291"><span class="tok-kw">const</span> Bundle = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L292"></span> <span class="line" id="L293"><span class="tok-kw">const</span> base64 = std.base64.standard.decoderWithIgnore(<span class="tok-str">" \t\r\n"</span>);</span> <span class="line" id="L294"></span> <span class="line" id="L295"><span class="tok-kw">const</span> MapContext = <span class="tok-kw">struct</span> {</span> <span class="line" id="L296"> cb: *<span class="tok-kw">const</span> Bundle,</span> <span class="line" id="L297"></span> <span class="line" id="L298"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">hash</span>(ctx: MapContext, k: der.Element.Slice) <span class="tok-type">u64</span> {</span> <span class="line" id="L299"> <span class="tok-kw">return</span> std.hash_map.hashString(ctx.cb.bytes.items[k.start..k.end]);</span> <span class="line" id="L300"> }</span> <span class="line" id="L301"></span> <span class="line" id="L302"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">eql</span>(ctx: MapContext, a: der.Element.Slice, b: der.Element.Slice) <span class="tok-type">bool</span> {</span> <span class="line" id="L303"> <span class="tok-kw">const</span> bytes = ctx.cb.bytes.items;</span> <span class="line" id="L304"> <span class="tok-kw">return</span> mem.eql(</span> <span class="line" id="L305"> <span class="tok-type">u8</span>,</span> <span class="line" id="L306"> bytes[a.start..a.end],</span> <span class="line" id="L307"> bytes[b.start..b.end],</span> <span class="line" id="L308"> );</span> <span class="line" id="L309"> }</span> <span class="line" id="L310">};</span> <span class="line" id="L311"></span> <span class="line" id="L312"><span class="tok-kw">test</span> <span class="tok-str">"scan for OS-provided certificates"</span> {</span> <span class="line" id="L313"> <span class="tok-kw">if</span> (builtin.os.tag == .wasi) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SkipZigTest;</span> <span class="line" id="L314"></span> <span class="line" id="L315"> <span class="tok-kw">var</span> bundle: Bundle = .{};</span> <span class="line" id="L316"> <span class="tok-kw">defer</span> bundle.deinit(std.testing.allocator);</span> <span class="line" id="L317"></span> <span class="line" id="L318"> <span class="tok-kw">try</span> bundle.rescan(std.testing.allocator);</span> <span class="line" id="L319">}</span> <span class="line" id="L320"></span> </code></pre></body> </html>
repos/yazap/docs/src/std/crypto/Certificate	repos/yazap/docs/src/std/crypto/Certificate/Bundle/macos.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/Certificate/Bundle/macos.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> assert = std.debug.assert;</span> <span class="line" id="L3"><span class="tok-kw">const</span> fs = std.fs;</span> <span class="line" id="L4"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L5"><span class="tok-kw">const</span> Allocator = std.mem.Allocator;</span> <span class="line" id="L6"><span class="tok-kw">const</span> Bundle = <span class="tok-builtin">@import</span>(<span class="tok-str">"../Bundle.zig"</span>);</span> <span class="line" id="L7"></span> <span class="line" id="L8"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> RescanMacError = Allocator.Error \|\| fs.File.OpenError \|\| fs.File.ReadError \|\| fs.File.SeekError \|\| Bundle.ParseCertError \|\| <span class="tok-kw">error</span>{EndOfStream};</span> <span class="line" id="L9"></span> <span class="line" id="L10"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">rescanMac</span>(cb: *Bundle, gpa: Allocator) RescanMacError!<span class="tok-type">void</span> {</span> <span class="line" id="L11"> cb.bytes.clearRetainingCapacity();</span> <span class="line" id="L12"> cb.map.clearRetainingCapacity();</span> <span class="line" id="L13"></span> <span class="line" id="L14"> <span class="tok-kw">const</span> file = <span class="tok-kw">try</span> fs.openFileAbsolute(<span class="tok-str">"/System/Library/Keychains/SystemRootCertificates.keychain"</span>, .{});</span> <span class="line" id="L15"> <span class="tok-kw">defer</span> file.close();</span> <span class="line" id="L16"></span> <span class="line" id="L17"> <span class="tok-kw">const</span> bytes = <span class="tok-kw">try</span> file.readToEndAlloc(gpa, std.math.maxInt(<span class="tok-type">u32</span>));</span> <span class="line" id="L18"> <span class="tok-kw">defer</span> gpa.free(bytes);</span> <span class="line" id="L19"></span> <span class="line" id="L20"> <span class="tok-kw">var</span> stream = std.io.fixedBufferStream(bytes);</span> <span class="line" id="L21"> <span class="tok-kw">const</span> reader = stream.reader();</span> <span class="line" id="L22"></span> <span class="line" id="L23"> <span class="tok-kw">const</span> db_header = <span class="tok-kw">try</span> reader.readStructBig(ApplDbHeader);</span> <span class="line" id="L24"> assert(mem.eql(<span class="tok-type">u8</span>, <span class="tok-str">"kych"</span>, &<span class="tok-builtin">@as</span>([<span class="tok-number">4</span>]<span class="tok-type">u8</span>, <span class="tok-builtin">@bitCast</span>(db_header.signature))));</span> <span class="line" id="L25"></span> <span class="line" id="L26"> <span class="tok-kw">try</span> stream.seekTo(db_header.schema_offset);</span> <span class="line" id="L27"></span> <span class="line" id="L28"> <span class="tok-kw">const</span> db_schema = <span class="tok-kw">try</span> reader.readStructBig(ApplDbSchema);</span> <span class="line" id="L29"></span> <span class="line" id="L30"> <span class="tok-kw">var</span> table_list = <span class="tok-kw">try</span> gpa.alloc(<span class="tok-type">u32</span>, db_schema.table_count);</span> <span class="line" id="L31"> <span class="tok-kw">defer</span> gpa.free(table_list);</span> <span class="line" id="L32"></span> <span class="line" id="L33"> <span class="tok-kw">var</span> table_idx: <span class="tok-type">u32</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L34"> <span class="tok-kw">while</span> (table_idx < table_list.len) : (table_idx += <span class="tok-number">1</span>) {</span> <span class="line" id="L35"> table_list[table_idx] = <span class="tok-kw">try</span> reader.readIntBig(<span class="tok-type">u32</span>);</span> <span class="line" id="L36"> }</span> <span class="line" id="L37"></span> <span class="line" id="L38"> <span class="tok-kw">const</span> now_sec = std.time.timestamp();</span> <span class="line" id="L39"></span> <span class="line" id="L40"> <span class="tok-kw">for</span> (table_list) \|table_offset\| {</span> <span class="line" id="L41"> <span class="tok-kw">try</span> stream.seekTo(db_header.schema_offset + table_offset);</span> <span class="line" id="L42"></span> <span class="line" id="L43"> <span class="tok-kw">const</span> table_header = <span class="tok-kw">try</span> reader.readStructBig(TableHeader);</span> <span class="line" id="L44"></span> <span class="line" id="L45"> <span class="tok-kw">if</span> (<span class="tok-builtin">@as</span>(std.os.darwin.cssm.DB_RECORDTYPE, <span class="tok-builtin">@enumFromInt</span>(table_header.table_id)) != .X509_CERTIFICATE) {</span> <span class="line" id="L46"> <span class="tok-kw">continue</span>;</span> <span class="line" id="L47"> }</span> <span class="line" id="L48"></span> <span class="line" id="L49"> <span class="tok-kw">var</span> record_list = <span class="tok-kw">try</span> gpa.alloc(<span class="tok-type">u32</span>, table_header.record_count);</span> <span class="line" id="L50"> <span class="tok-kw">defer</span> gpa.free(record_list);</span> <span class="line" id="L51"></span> <span class="line" id="L52"> <span class="tok-kw">var</span> record_idx: <span class="tok-type">u32</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L53"> <span class="tok-kw">while</span> (record_idx < record_list.len) : (record_idx += <span class="tok-number">1</span>) {</span> <span class="line" id="L54"> record_list[record_idx] = <span class="tok-kw">try</span> reader.readIntBig(<span class="tok-type">u32</span>);</span> <span class="line" id="L55"> }</span> <span class="line" id="L56"></span> <span class="line" id="L57"> <span class="tok-kw">for</span> (record_list) \|record_offset\| {</span> <span class="line" id="L58"> <span class="tok-kw">try</span> stream.seekTo(db_header.schema_offset + table_offset + record_offset);</span> <span class="line" id="L59"></span> <span class="line" id="L60"> <span class="tok-kw">const</span> cert_header = <span class="tok-kw">try</span> reader.readStructBig(X509CertHeader);</span> <span class="line" id="L61"></span> <span class="line" id="L62"> <span class="tok-kw">try</span> cb.bytes.ensureUnusedCapacity(gpa, cert_header.cert_size);</span> <span class="line" id="L63"></span> <span class="line" id="L64"> <span class="tok-kw">const</span> cert_start = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(cb.bytes.items.len));</span> <span class="line" id="L65"> <span class="tok-kw">const</span> dest_buf = cb.bytes.allocatedSlice()[cert_start..];</span> <span class="line" id="L66"> cb.bytes.items.len += <span class="tok-kw">try</span> reader.readAtLeast(dest_buf, cert_header.cert_size);</span> <span class="line" id="L67"></span> <span class="line" id="L68"> <span class="tok-kw">try</span> cb.parseCert(gpa, cert_start, now_sec);</span> <span class="line" id="L69"> }</span> <span class="line" id="L70"> }</span> <span class="line" id="L71"></span> <span class="line" id="L72"> cb.bytes.shrinkAndFree(gpa, cb.bytes.items.len);</span> <span class="line" id="L73">}</span> <span class="line" id="L74"></span> <span class="line" id="L75"><span class="tok-kw">const</span> ApplDbHeader = <span class="tok-kw">extern</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L76"> signature: <span class="tok-builtin">@Vector</span>(<span class="tok-number">4</span>, <span class="tok-type">u8</span>),</span> <span class="line" id="L77"> version: <span class="tok-type">u32</span>,</span> <span class="line" id="L78"> header_size: <span class="tok-type">u32</span>,</span> <span class="line" id="L79"> schema_offset: <span class="tok-type">u32</span>,</span> <span class="line" id="L80"> auth_offset: <span class="tok-type">u32</span>,</span> <span class="line" id="L81">};</span> <span class="line" id="L82"></span> <span class="line" id="L83"><span class="tok-kw">const</span> ApplDbSchema = <span class="tok-kw">extern</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L84"> schema_size: <span class="tok-type">u32</span>,</span> <span class="line" id="L85"> table_count: <span class="tok-type">u32</span>,</span> <span class="line" id="L86">};</span> <span class="line" id="L87"></span> <span class="line" id="L88"><span class="tok-kw">const</span> TableHeader = <span class="tok-kw">extern</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L89"> table_size: <span class="tok-type">u32</span>,</span> <span class="line" id="L90"> table_id: <span class="tok-type">u32</span>,</span> <span class="line" id="L91"> record_count: <span class="tok-type">u32</span>,</span> <span class="line" id="L92"> records: <span class="tok-type">u32</span>,</span> <span class="line" id="L93"> indexes_offset: <span class="tok-type">u32</span>,</span> <span class="line" id="L94"> free_list_head: <span class="tok-type">u32</span>,</span> <span class="line" id="L95"> record_numbers_count: <span class="tok-type">u32</span>,</span> <span class="line" id="L96">};</span> <span class="line" id="L97"></span> <span class="line" id="L98"><span class="tok-kw">const</span> X509CertHeader = <span class="tok-kw">extern</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L99"> record_size: <span class="tok-type">u32</span>,</span> <span class="line" id="L100"> record_number: <span class="tok-type">u32</span>,</span> <span class="line" id="L101"> unknown1: <span class="tok-type">u32</span>,</span> <span class="line" id="L102"> unknown2: <span class="tok-type">u32</span>,</span> <span class="line" id="L103"> cert_size: <span class="tok-type">u32</span>,</span> <span class="line" id="L104"> unknown3: <span class="tok-type">u32</span>,</span> <span class="line" id="L105"> cert_type: <span class="tok-type">u32</span>,</span> <span class="line" id="L106"> cert_encoding: <span class="tok-type">u32</span>,</span> <span class="line" id="L107"> print_name: <span class="tok-type">u32</span>,</span> <span class="line" id="L108"> alias: <span class="tok-type">u32</span>,</span> <span class="line" id="L109"> subject: <span class="tok-type">u32</span>,</span> <span class="line" id="L110"> issuer: <span class="tok-type">u32</span>,</span> <span class="line" id="L111"> serial_number: <span class="tok-type">u32</span>,</span> <span class="line" id="L112"> subject_key_identifier: <span class="tok-type">u32</span>,</span> <span class="line" id="L113"> public_key_hash: <span class="tok-type">u32</span>,</span> <span class="line" id="L114">};</span> <span class="line" id="L115"></span> </code></pre></body> </html>
repos/yazap/docs/src/std/crypto	repos/yazap/docs/src/std/crypto/tls/Client.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/tls/Client.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"../../std.zig"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> tls = std.crypto.tls;</span> <span class="line" id="L3"><span class="tok-kw">const</span> Client = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L4"><span class="tok-kw">const</span> net = std.net;</span> <span class="line" id="L5"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L6"><span class="tok-kw">const</span> crypto = std.crypto;</span> <span class="line" id="L7"><span class="tok-kw">const</span> assert = std.debug.assert;</span> <span class="line" id="L8"><span class="tok-kw">const</span> Certificate = std.crypto.Certificate;</span> <span class="line" id="L9"></span> <span class="line" id="L10"><span class="tok-kw">const</span> max_ciphertext_len = tls.max_ciphertext_len;</span> <span class="line" id="L11"><span class="tok-kw">const</span> hkdfExpandLabel = tls.hkdfExpandLabel;</span> <span class="line" id="L12"><span class="tok-kw">const</span> int2 = tls.int2;</span> <span class="line" id="L13"><span class="tok-kw">const</span> int3 = tls.int3;</span> <span class="line" id="L14"><span class="tok-kw">const</span> array = tls.array;</span> <span class="line" id="L15"><span class="tok-kw">const</span> enum_array = tls.enum_array;</span> <span class="line" id="L16"></span> <span class="line" id="L17">read_seq: <span class="tok-type">u64</span>,</span> <span class="line" id="L18">write_seq: <span class="tok-type">u64</span>,</span> <span class="line" id="L19"><span class="tok-comment">/// The starting index of cleartext bytes inside `partially_read_buffer`.</span></span> <span class="line" id="L20">partial_cleartext_idx: <span class="tok-type">u15</span>,</span> <span class="line" id="L21"><span class="tok-comment">/// The ending index of cleartext bytes inside `partially_read_buffer` as well</span></span> <span class="line" id="L22"><span class="tok-comment">/// as the starting index of ciphertext bytes.</span></span> <span class="line" id="L23">partial_ciphertext_idx: <span class="tok-type">u15</span>,</span> <span class="line" id="L24"><span class="tok-comment">/// The ending index of ciphertext bytes inside `partially_read_buffer`.</span></span> <span class="line" id="L25">partial_ciphertext_end: <span class="tok-type">u15</span>,</span> <span class="line" id="L26"><span class="tok-comment">/// When this is true, the stream may still not be at the end because there</span></span> <span class="line" id="L27"><span class="tok-comment">/// may be data in `partially_read_buffer`.</span></span> <span class="line" id="L28">received_close_notify: <span class="tok-type">bool</span>,</span> <span class="line" id="L29"><span class="tok-comment">/// By default, reaching the end-of-stream when reading from the server will</span></span> <span class="line" id="L30"><span class="tok-comment">/// cause `error.TlsConnectionTruncated` to be returned, unless a close_notify</span></span> <span class="line" id="L31"><span class="tok-comment">/// message has been received. By setting this flag to `true`, instead, the</span></span> <span class="line" id="L32"><span class="tok-comment">/// end-of-stream will be forwarded to the application layer above TLS.</span></span> <span class="line" id="L33"><span class="tok-comment">/// This makes the application vulnerable to truncation attacks unless the</span></span> <span class="line" id="L34"><span class="tok-comment">/// application layer itself verifies that the amount of data received equals</span></span> <span class="line" id="L35"><span class="tok-comment">/// the amount of data expected, such as HTTP with the Content-Length header.</span></span> <span class="line" id="L36">allow_truncation_attacks: <span class="tok-type">bool</span> = <span class="tok-null">false</span>,</span> <span class="line" id="L37">application_cipher: tls.ApplicationCipher,</span> <span class="line" id="L38"><span class="tok-comment">/// The size is enough to contain exactly one TLSCiphertext record.</span></span> <span class="line" id="L39"><span class="tok-comment">/// This buffer is segmented into four parts:</span></span> <span class="line" id="L40"><span class="tok-comment">/// 0. unused</span></span> <span class="line" id="L41"><span class="tok-comment">/// 1. cleartext</span></span> <span class="line" id="L42"><span class="tok-comment">/// 2. ciphertext</span></span> <span class="line" id="L43"><span class="tok-comment">/// 3. unused</span></span> <span class="line" id="L44"><span class="tok-comment">/// The fields `partial_cleartext_idx`, `partial_ciphertext_idx`, and</span></span> <span class="line" id="L45"><span class="tok-comment">/// `partial_ciphertext_end` describe the span of the segments.</span></span> <span class="line" id="L46">partially_read_buffer: [tls.max_ciphertext_record_len]<span class="tok-type">u8</span>,</span> <span class="line" id="L47"></span> <span class="line" id="L48"><span class="tok-comment">/// This is an example of the type that is needed by the read and write</span></span> <span class="line" id="L49"><span class="tok-comment">/// functions. It can have any fields but it must at least have these</span></span> <span class="line" id="L50"><span class="tok-comment">/// functions.</span></span> <span class="line" id="L51"><span class="tok-comment">///</span></span> <span class="line" id="L52"><span class="tok-comment">/// Note that `std.net.Stream` conforms to this interface.</span></span> <span class="line" id="L53"><span class="tok-comment">///</span></span> <span class="line" id="L54"><span class="tok-comment">/// This declaration serves as documentation only.</span></span> <span class="line" id="L55"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> StreamInterface = <span class="tok-kw">struct</span> {</span> <span class="line" id="L56"> <span class="tok-comment">/// Can be any error set.</span></span> <span class="line" id="L57"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> ReadError = <span class="tok-kw">error</span>{};</span> <span class="line" id="L58"></span> <span class="line" id="L59"> <span class="tok-comment">/// Returns the number of bytes read. The number read may be less than the</span></span> <span class="line" id="L60"> <span class="tok-comment">/// buffer space provided. End-of-stream is indicated by a return value of 0.</span></span> <span class="line" id="L61"> <span class="tok-comment">///</span></span> <span class="line" id="L62"> <span class="tok-comment">/// The `iovecs` parameter is mutable because so that function may to</span></span> <span class="line" id="L63"> <span class="tok-comment">/// mutate the fields in order to handle partial reads from the underlying</span></span> <span class="line" id="L64"> <span class="tok-comment">/// stream layer.</span></span> <span class="line" id="L65"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">readv</span>(this: <span class="tok-builtin">@This</span>(), iovecs: []std.os.iovec) ReadError!<span class="tok-type">usize</span> {</span> <span class="line" id="L66"> _ = .{ this, iovecs };</span> <span class="line" id="L67"> <span class="tok-builtin">@panic</span>(<span class="tok-str">"unimplemented"</span>);</span> <span class="line" id="L68"> }</span> <span class="line" id="L69"></span> <span class="line" id="L70"> <span class="tok-comment">/// Can be any error set.</span></span> <span class="line" id="L71"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> WriteError = <span class="tok-kw">error</span>{};</span> <span class="line" id="L72"></span> <span class="line" id="L73"> <span class="tok-comment">/// Returns the number of bytes read, which may be less than the buffer</span></span> <span class="line" id="L74"> <span class="tok-comment">/// space provided. A short read does not indicate end-of-stream.</span></span> <span class="line" id="L75"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">writev</span>(this: <span class="tok-builtin">@This</span>(), iovecs: []<span class="tok-kw">const</span> std.os.iovec_const) WriteError!<span class="tok-type">usize</span> {</span> <span class="line" id="L76"> _ = .{ this, iovecs };</span> <span class="line" id="L77"> <span class="tok-builtin">@panic</span>(<span class="tok-str">"unimplemented"</span>);</span> <span class="line" id="L78"> }</span> <span class="line" id="L79"></span> <span class="line" id="L80"> <span class="tok-comment">/// Returns the number of bytes read, which may be less than the buffer</span></span> <span class="line" id="L81"> <span class="tok-comment">/// space provided, indicating end-of-stream.</span></span> <span class="line" id="L82"> <span class="tok-comment">/// The `iovecs` parameter is mutable in case this function needs to mutate</span></span> <span class="line" id="L83"> <span class="tok-comment">/// the fields in order to handle partial writes from the underlying layer.</span></span> <span class="line" id="L84"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">writevAll</span>(this: <span class="tok-builtin">@This</span>(), iovecs: []std.os.iovec_const) WriteError!<span class="tok-type">usize</span> {</span> <span class="line" id="L85"> <span class="tok-comment">// This can be implemented in terms of writev, or specialized if desired.</span> </span> <span class="line" id="L86"> _ = .{ this, iovecs };</span> <span class="line" id="L87"> <span class="tok-builtin">@panic</span>(<span class="tok-str">"unimplemented"</span>);</span> <span class="line" id="L88"> }</span> <span class="line" id="L89">};</span> <span class="line" id="L90"></span> <span class="line" id="L91"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">InitError</span>(<span class="tok-kw">comptime</span> Stream: <span class="tok-type">type</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L92"> <span class="tok-kw">return</span> std.mem.Allocator.Error \|\| Stream.WriteError \|\| Stream.ReadError \|\| tls.AlertDescription.Error \|\| <span class="tok-kw">error</span>{</span> <span class="line" id="L93"> InsufficientEntropy,</span> <span class="line" id="L94"> DiskQuota,</span> <span class="line" id="L95"> LockViolation,</span> <span class="line" id="L96"> NotOpenForWriting,</span> <span class="line" id="L97"> TlsUnexpectedMessage,</span> <span class="line" id="L98"> TlsIllegalParameter,</span> <span class="line" id="L99"> TlsDecryptFailure,</span> <span class="line" id="L100"> TlsRecordOverflow,</span> <span class="line" id="L101"> TlsBadRecordMac,</span> <span class="line" id="L102"> CertificateFieldHasInvalidLength,</span> <span class="line" id="L103"> CertificateHostMismatch,</span> <span class="line" id="L104"> CertificatePublicKeyInvalid,</span> <span class="line" id="L105"> CertificateExpired,</span> <span class="line" id="L106"> CertificateFieldHasWrongDataType,</span> <span class="line" id="L107"> CertificateIssuerMismatch,</span> <span class="line" id="L108"> CertificateNotYetValid,</span> <span class="line" id="L109"> CertificateSignatureAlgorithmMismatch,</span> <span class="line" id="L110"> CertificateSignatureAlgorithmUnsupported,</span> <span class="line" id="L111"> CertificateSignatureInvalid,</span> <span class="line" id="L112"> CertificateSignatureInvalidLength,</span> <span class="line" id="L113"> CertificateSignatureNamedCurveUnsupported,</span> <span class="line" id="L114"> CertificateSignatureUnsupportedBitCount,</span> <span class="line" id="L115"> TlsCertificateNotVerified,</span> <span class="line" id="L116"> TlsBadSignatureScheme,</span> <span class="line" id="L117"> TlsBadRsaSignatureBitCount,</span> <span class="line" id="L118"> InvalidEncoding,</span> <span class="line" id="L119"> IdentityElement,</span> <span class="line" id="L120"> SignatureVerificationFailed,</span> <span class="line" id="L121"> TlsDecryptError,</span> <span class="line" id="L122"> TlsConnectionTruncated,</span> <span class="line" id="L123"> TlsDecodeError,</span> <span class="line" id="L124"> UnsupportedCertificateVersion,</span> <span class="line" id="L125"> CertificateTimeInvalid,</span> <span class="line" id="L126"> CertificateHasUnrecognizedObjectId,</span> <span class="line" id="L127"> CertificateHasInvalidBitString,</span> <span class="line" id="L128"> MessageTooLong,</span> <span class="line" id="L129"> NegativeIntoUnsigned,</span> <span class="line" id="L130"> TargetTooSmall,</span> <span class="line" id="L131"> BufferTooSmall,</span> <span class="line" id="L132"> InvalidSignature,</span> <span class="line" id="L133"> NotSquare,</span> <span class="line" id="L134"> NonCanonical,</span> <span class="line" id="L135"> };</span> <span class="line" id="L136">}</span> <span class="line" id="L137"></span> <span class="line" id="L138"><span class="tok-comment">/// Initiates a TLS handshake and establishes a TLSv1.3 session with `stream`, which</span></span> <span class="line" id="L139"><span class="tok-comment">/// must conform to `StreamInterface`.</span></span> <span class="line" id="L140"><span class="tok-comment">///</span></span> <span class="line" id="L141"><span class="tok-comment">/// `host` is only borrowed during this function call.</span></span> <span class="line" id="L142"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">init</span>(stream: <span class="tok-kw">anytype</span>, ca_bundle: Certificate.Bundle, host: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) InitError(<span class="tok-builtin">@TypeOf</span>(stream))!Client {</span> <span class="line" id="L143"> <span class="tok-kw">const</span> host_len: <span class="tok-type">u16</span> = <span class="tok-builtin">@intCast</span>(host.len);</span> <span class="line" id="L144"></span> <span class="line" id="L145"> <span class="tok-kw">var</span> random_buffer: [<span class="tok-number">128</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L146"> crypto.random.bytes(&random_buffer);</span> <span class="line" id="L147"> <span class="tok-kw">const</span> hello_rand = random_buffer[<span class="tok-number">0</span>..<span class="tok-number">32</span>].;</span> <span class="line" id="L148"> <span class="tok-kw">const</span> legacy_session_id = random_buffer[<span class="tok-number">32</span>..<span class="tok-number">64</span>].;</span> <span class="line" id="L149"> <span class="tok-kw">const</span> x25519_kp_seed = random_buffer[<span class="tok-number">64</span>..<span class="tok-number">96</span>].;</span> <span class="line" id="L150"> <span class="tok-kw">const</span> secp256r1_kp_seed = random_buffer[<span class="tok-number">96</span>..<span class="tok-number">128</span>].;</span> <span class="line" id="L151"></span> <span class="line" id="L152"> <span class="tok-kw">const</span> x25519_kp = crypto.dh.X25519.KeyPair.create(x25519_kp_seed) <span class="tok-kw">catch</span> \|err\| <span class="tok-kw">switch</span> (err) {</span> <span class="line" id="L153"> <span class="tok-comment">// Only possible to happen if the private key is all zeroes.</span> </span> <span class="line" id="L154"> <span class="tok-kw">error</span>.IdentityElement => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InsufficientEntropy,</span> <span class="line" id="L155"> };</span> <span class="line" id="L156"> <span class="tok-kw">const</span> secp256r1_kp = crypto.sign.ecdsa.EcdsaP256Sha256.KeyPair.create(secp256r1_kp_seed) <span class="tok-kw">catch</span> \|err\| <span class="tok-kw">switch</span> (err) {</span> <span class="line" id="L157"> <span class="tok-comment">// Only possible to happen if the private key is all zeroes.</span> </span> <span class="line" id="L158"> <span class="tok-kw">error</span>.IdentityElement => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InsufficientEntropy,</span> <span class="line" id="L159"> };</span> <span class="line" id="L160"> <span class="tok-kw">const</span> kyber768_kp = crypto.kem.kyber_d00.Kyber768.KeyPair.create(<span class="tok-null">null</span>) <span class="tok-kw">catch</span> {};</span> <span class="line" id="L161"></span> <span class="line" id="L162"> <span class="tok-kw">const</span> extensions_payload =</span> <span class="line" id="L163"> tls.extension(.supported_versions, [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L164"> <span class="tok-number">0x02</span>, <span class="tok-comment">// byte length of supported versions</span> </span> <span class="line" id="L165"> <span class="tok-number">0x03</span>, <span class="tok-number">0x04</span>, <span class="tok-comment">// TLS 1.3</span> </span> <span class="line" id="L166"> }) ++ tls.extension(.signature_algorithms, enum_array(tls.SignatureScheme, &.{</span> <span class="line" id="L167"> .ecdsa_secp256r1_sha256,</span> <span class="line" id="L168"> .ecdsa_secp384r1_sha384,</span> <span class="line" id="L169"> .ecdsa_secp521r1_sha512,</span> <span class="line" id="L170"> .rsa_pss_rsae_sha256,</span> <span class="line" id="L171"> .rsa_pss_rsae_sha384,</span> <span class="line" id="L172"> .rsa_pss_rsae_sha512,</span> <span class="line" id="L173"> .rsa_pkcs1_sha256,</span> <span class="line" id="L174"> .rsa_pkcs1_sha384,</span> <span class="line" id="L175"> .rsa_pkcs1_sha512,</span> <span class="line" id="L176"> .ed25519,</span> <span class="line" id="L177"> })) ++ tls.extension(.supported_groups, enum_array(tls.NamedGroup, &.{</span> <span class="line" id="L178"> .x25519_kyber768d00,</span> <span class="line" id="L179"> .secp256r1,</span> <span class="line" id="L180"> .x25519,</span> <span class="line" id="L181"> })) ++ tls.extension(</span> <span class="line" id="L182"> .key_share,</span> <span class="line" id="L183"> array(<span class="tok-number">1</span>, int2(<span class="tok-builtin">@intFromEnum</span>(tls.NamedGroup.x25519)) ++</span> <span class="line" id="L184"> array(<span class="tok-number">1</span>, x25519_kp.public_key) ++</span> <span class="line" id="L185"> int2(<span class="tok-builtin">@intFromEnum</span>(tls.NamedGroup.secp256r1)) ++</span> <span class="line" id="L186"> array(<span class="tok-number">1</span>, secp256r1_kp.public_key.toUncompressedSec1()) ++</span> <span class="line" id="L187"> int2(<span class="tok-builtin">@intFromEnum</span>(tls.NamedGroup.x25519_kyber768d00)) ++</span> <span class="line" id="L188"> array(<span class="tok-number">1</span>, x25519_kp.public_key ++ kyber768_kp.public_key.toBytes())),</span> <span class="line" id="L189"> ) ++</span> <span class="line" id="L190"> int2(<span class="tok-builtin">@intFromEnum</span>(tls.ExtensionType.server_name)) ++</span> <span class="line" id="L191"> int2(host_len + <span class="tok-number">5</span>) ++ <span class="tok-comment">// byte length of this extension payload</span> </span> <span class="line" id="L192"> int2(host_len + <span class="tok-number">3</span>) ++ <span class="tok-comment">// server_name_list byte count</span> </span> <span class="line" id="L193"> [<span class="tok-number">1</span>]<span class="tok-type">u8</span>{<span class="tok-number">0x00</span>} ++ <span class="tok-comment">// name_type</span> </span> <span class="line" id="L194"> int2(host_len);</span> <span class="line" id="L195"></span> <span class="line" id="L196"> <span class="tok-kw">const</span> extensions_header =</span> <span class="line" id="L197"> int2(<span class="tok-builtin">@intCast</span>(extensions_payload.len + host_len)) ++</span> <span class="line" id="L198"> extensions_payload;</span> <span class="line" id="L199"></span> <span class="line" id="L200"> <span class="tok-kw">const</span> legacy_compression_methods = <span class="tok-number">0x0100</span>;</span> <span class="line" id="L201"></span> <span class="line" id="L202"> <span class="tok-kw">const</span> client_hello =</span> <span class="line" id="L203"> int2(<span class="tok-builtin">@intFromEnum</span>(tls.ProtocolVersion.tls_1_2)) ++</span> <span class="line" id="L204"> hello_rand ++</span> <span class="line" id="L205"> [<span class="tok-number">1</span>]<span class="tok-type">u8</span>{<span class="tok-number">32</span>} ++ legacy_session_id ++</span> <span class="line" id="L206"> cipher_suites ++</span> <span class="line" id="L207"> int2(legacy_compression_methods) ++</span> <span class="line" id="L208"> extensions_header;</span> <span class="line" id="L209"></span> <span class="line" id="L210"> <span class="tok-kw">const</span> out_handshake =</span> <span class="line" id="L211"> [_]<span class="tok-type">u8</span>{<span class="tok-builtin">@intFromEnum</span>(tls.HandshakeType.client_hello)} ++</span> <span class="line" id="L212"> int3(<span class="tok-builtin">@intCast</span>(client_hello.len + host_len)) ++</span> <span class="line" id="L213"> client_hello;</span> <span class="line" id="L214"></span> <span class="line" id="L215"> <span class="tok-kw">const</span> plaintext_header = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L216"> <span class="tok-builtin">@intFromEnum</span>(tls.ContentType.handshake),</span> <span class="line" id="L217"> <span class="tok-number">0x03</span>, <span class="tok-number">0x01</span>, <span class="tok-comment">// legacy_record_version</span> </span> <span class="line" id="L218"> } ++ int2(<span class="tok-builtin">@intCast</span>(out_handshake.len + host_len)) ++ out_handshake;</span> <span class="line" id="L219"></span> <span class="line" id="L220"> {</span> <span class="line" id="L221"> <span class="tok-kw">var</span> iovecs = [_]std.os.iovec_const{</span> <span class="line" id="L222"> .{</span> <span class="line" id="L223"> .iov_base = &plaintext_header,</span> <span class="line" id="L224"> .iov_len = plaintext_header.len,</span> <span class="line" id="L225"> },</span> <span class="line" id="L226"> .{</span> <span class="line" id="L227"> .iov_base = host.ptr,</span> <span class="line" id="L228"> .iov_len = host.len,</span> <span class="line" id="L229"> },</span> <span class="line" id="L230"> };</span> <span class="line" id="L231"> <span class="tok-kw">try</span> stream.writevAll(&iovecs);</span> <span class="line" id="L232"> }</span> <span class="line" id="L233"></span> <span class="line" id="L234"> <span class="tok-kw">const</span> client_hello_bytes1 = plaintext_header[<span class="tok-number">5</span>..];</span> <span class="line" id="L235"></span> <span class="line" id="L236"> <span class="tok-kw">var</span> handshake_cipher: tls.HandshakeCipher = <span class="tok-null">undefined</span>;</span> <span class="line" id="L237"> <span class="tok-kw">var</span> handshake_buffer: [<span class="tok-number">8000</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L238"> <span class="tok-kw">var</span> d: tls.Decoder = .{ .buf = &handshake_buffer };</span> <span class="line" id="L239"> {</span> <span class="line" id="L240"> <span class="tok-kw">try</span> d.readAtLeastOurAmt(stream, tls.record_header_len);</span> <span class="line" id="L241"> <span class="tok-kw">const</span> ct = d.decode(tls.ContentType);</span> <span class="line" id="L242"> d.skip(<span class="tok-number">2</span>); <span class="tok-comment">// legacy_record_version</span> </span> <span class="line" id="L243"> <span class="tok-kw">const</span> record_len = d.decode(<span class="tok-type">u16</span>);</span> <span class="line" id="L244"> <span class="tok-kw">try</span> d.readAtLeast(stream, record_len);</span> <span class="line" id="L245"> <span class="tok-kw">const</span> server_hello_fragment = d.buf[d.idx..][<span class="tok-number">0</span>..record_len];</span> <span class="line" id="L246"> <span class="tok-kw">var</span> ptd = <span class="tok-kw">try</span> d.sub(record_len);</span> <span class="line" id="L247"> <span class="tok-kw">switch</span> (ct) {</span> <span class="line" id="L248"> .alert => {</span> <span class="line" id="L249"> <span class="tok-kw">try</span> ptd.ensure(<span class="tok-number">2</span>);</span> <span class="line" id="L250"> <span class="tok-kw">const</span> level = ptd.decode(tls.AlertLevel);</span> <span class="line" id="L251"> <span class="tok-kw">const</span> desc = ptd.decode(tls.AlertDescription);</span> <span class="line" id="L252"> _ = level;</span> <span class="line" id="L253"></span> <span class="line" id="L254"> <span class="tok-comment">// if this isn't a error alert, then it's a closure alert, which makes no sense in a handshake</span> </span> <span class="line" id="L255"> <span class="tok-kw">try</span> desc.toError();</span> <span class="line" id="L256"> <span class="tok-comment">// TODO: handle server-side closures</span> </span> <span class="line" id="L257"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsUnexpectedMessage;</span> <span class="line" id="L258"> },</span> <span class="line" id="L259"> .handshake => {</span> <span class="line" id="L260"> <span class="tok-kw">try</span> ptd.ensure(<span class="tok-number">4</span>);</span> <span class="line" id="L261"> <span class="tok-kw">const</span> handshake_type = ptd.decode(tls.HandshakeType);</span> <span class="line" id="L262"> <span class="tok-kw">if</span> (handshake_type != .server_hello) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsUnexpectedMessage;</span> <span class="line" id="L263"> <span class="tok-kw">const</span> length = ptd.decode(<span class="tok-type">u24</span>);</span> <span class="line" id="L264"> <span class="tok-kw">var</span> hsd = <span class="tok-kw">try</span> ptd.sub(length);</span> <span class="line" id="L265"> <span class="tok-kw">try</span> hsd.ensure(<span class="tok-number">2</span> + <span class="tok-number">32</span> + <span class="tok-number">1</span> + <span class="tok-number">32</span> + <span class="tok-number">2</span> + <span class="tok-number">1</span> + <span class="tok-number">2</span>);</span> <span class="line" id="L266"> <span class="tok-kw">const</span> legacy_version = hsd.decode(<span class="tok-type">u16</span>);</span> <span class="line" id="L267"> <span class="tok-kw">const</span> random = hsd.array(<span class="tok-number">32</span>);</span> <span class="line" id="L268"> <span class="tok-kw">if</span> (mem.eql(<span class="tok-type">u8</span>, random, &tls.hello_retry_request_sequence)) {</span> <span class="line" id="L269"> <span class="tok-comment">// This is a HelloRetryRequest message. This client implementation</span> </span> <span class="line" id="L270"> <span class="tok-comment">// does not expect to get one.</span> </span> <span class="line" id="L271"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsUnexpectedMessage;</span> <span class="line" id="L272"> }</span> <span class="line" id="L273"> <span class="tok-kw">const</span> legacy_session_id_echo_len = hsd.decode(<span class="tok-type">u8</span>);</span> <span class="line" id="L274"> <span class="tok-kw">if</span> (legacy_session_id_echo_len != <span class="tok-number">32</span>) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsIllegalParameter;</span> <span class="line" id="L275"> <span class="tok-kw">const</span> legacy_session_id_echo = hsd.array(<span class="tok-number">32</span>);</span> <span class="line" id="L276"> <span class="tok-kw">if</span> (!mem.eql(<span class="tok-type">u8</span>, legacy_session_id_echo, &legacy_session_id))</span> <span class="line" id="L277"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsIllegalParameter;</span> <span class="line" id="L278"> <span class="tok-kw">const</span> cipher_suite_tag = hsd.decode(tls.CipherSuite);</span> <span class="line" id="L279"> hsd.skip(<span class="tok-number">1</span>); <span class="tok-comment">// legacy_compression_method</span> </span> <span class="line" id="L280"> <span class="tok-kw">const</span> extensions_size = hsd.decode(<span class="tok-type">u16</span>);</span> <span class="line" id="L281"> <span class="tok-kw">var</span> all_extd = <span class="tok-kw">try</span> hsd.sub(extensions_size);</span> <span class="line" id="L282"> <span class="tok-kw">var</span> supported_version: <span class="tok-type">u16</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L283"> <span class="tok-kw">var</span> shared_key: []<span class="tok-kw">const</span> <span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L284"> <span class="tok-kw">var</span> have_shared_key = <span class="tok-null">false</span>;</span> <span class="line" id="L285"> <span class="tok-kw">while</span> (!all_extd.eof()) {</span> <span class="line" id="L286"> <span class="tok-kw">try</span> all_extd.ensure(<span class="tok-number">2</span> + <span class="tok-number">2</span>);</span> <span class="line" id="L287"> <span class="tok-kw">const</span> et = all_extd.decode(tls.ExtensionType);</span> <span class="line" id="L288"> <span class="tok-kw">const</span> ext_size = all_extd.decode(<span class="tok-type">u16</span>);</span> <span class="line" id="L289"> <span class="tok-kw">var</span> extd = <span class="tok-kw">try</span> all_extd.sub(ext_size);</span> <span class="line" id="L290"> <span class="tok-kw">switch</span> (et) {</span> <span class="line" id="L291"> .supported_versions => {</span> <span class="line" id="L292"> <span class="tok-kw">if</span> (supported_version != <span class="tok-number">0</span>) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsIllegalParameter;</span> <span class="line" id="L293"> <span class="tok-kw">try</span> extd.ensure(<span class="tok-number">2</span>);</span> <span class="line" id="L294"> supported_version = extd.decode(<span class="tok-type">u16</span>);</span> <span class="line" id="L295"> },</span> <span class="line" id="L296"> .key_share => {</span> <span class="line" id="L297"> <span class="tok-kw">if</span> (have_shared_key) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsIllegalParameter;</span> <span class="line" id="L298"> have_shared_key = <span class="tok-null">true</span>;</span> <span class="line" id="L299"> <span class="tok-kw">try</span> extd.ensure(<span class="tok-number">4</span>);</span> <span class="line" id="L300"> <span class="tok-kw">const</span> named_group = extd.decode(tls.NamedGroup);</span> <span class="line" id="L301"> <span class="tok-kw">const</span> key_size = extd.decode(<span class="tok-type">u16</span>);</span> <span class="line" id="L302"> <span class="tok-kw">try</span> extd.ensure(key_size);</span> <span class="line" id="L303"> <span class="tok-kw">switch</span> (named_group) {</span> <span class="line" id="L304"> .x25519_kyber768d00 => {</span> <span class="line" id="L305"> <span class="tok-kw">const</span> xksl = crypto.dh.X25519.public_length;</span> <span class="line" id="L306"> <span class="tok-kw">const</span> hksl = xksl + crypto.kem.kyber_d00.Kyber768.ciphertext_length;</span> <span class="line" id="L307"> <span class="tok-kw">if</span> (key_size != hksl)</span> <span class="line" id="L308"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsIllegalParameter;</span> <span class="line" id="L309"> <span class="tok-kw">const</span> server_ks = extd.array(hksl);</span> <span class="line" id="L310"></span> <span class="line" id="L311"> shared_key = &((crypto.dh.X25519.scalarmult(</span> <span class="line" id="L312"> x25519_kp.secret_key,</span> <span class="line" id="L313"> server_ks[<span class="tok-number">0</span>..xksl].,</span> <span class="line" id="L314"> ) <span class="tok-kw">catch</span> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsDecryptFailure) ++ (kyber768_kp.secret_key.decaps(</span> <span class="line" id="L315"> server_ks[xksl..hksl],</span> <span class="line" id="L316"> ) <span class="tok-kw">catch</span> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsDecryptFailure));</span> <span class="line" id="L317"> },</span> <span class="line" id="L318"> .x25519 => {</span> <span class="line" id="L319"> <span class="tok-kw">const</span> ksl = crypto.dh.X25519.public_length;</span> <span class="line" id="L320"> <span class="tok-kw">if</span> (key_size != ksl) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsIllegalParameter;</span> <span class="line" id="L321"> <span class="tok-kw">const</span> server_pub_key = extd.array(ksl);</span> <span class="line" id="L322"></span> <span class="line" id="L323"> shared_key = &(crypto.dh.X25519.scalarmult(</span> <span class="line" id="L324"> x25519_kp.secret_key,</span> <span class="line" id="L325"> server_pub_key.,</span> <span class="line" id="L326"> ) <span class="tok-kw">catch</span> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsDecryptFailure);</span> <span class="line" id="L327"> },</span> <span class="line" id="L328"> .secp256r1 => {</span> <span class="line" id="L329"> <span class="tok-kw">const</span> server_pub_key = extd.slice(key_size);</span> <span class="line" id="L330"></span> <span class="line" id="L331"> <span class="tok-kw">const</span> PublicKey = crypto.sign.ecdsa.EcdsaP256Sha256.PublicKey;</span> <span class="line" id="L332"> <span class="tok-kw">const</span> pk = PublicKey.fromSec1(server_pub_key) <span class="tok-kw">catch</span> {</span> <span class="line" id="L333"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsDecryptFailure;</span> <span class="line" id="L334"> };</span> <span class="line" id="L335"> <span class="tok-kw">const</span> mul = pk.p.mulPublic(secp256r1_kp.secret_key.bytes, .Big) <span class="tok-kw">catch</span> {</span> <span class="line" id="L336"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsDecryptFailure;</span> <span class="line" id="L337"> };</span> <span class="line" id="L338"> shared_key = &mul.affineCoordinates().x.toBytes(.Big);</span> <span class="line" id="L339"> },</span> <span class="line" id="L340"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L341"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsIllegalParameter;</span> <span class="line" id="L342"> },</span> <span class="line" id="L343"> }</span> <span class="line" id="L344"> },</span> <span class="line" id="L345"> <span class="tok-kw">else</span> => {},</span> <span class="line" id="L346"> }</span> <span class="line" id="L347"> }</span> <span class="line" id="L348"> <span class="tok-kw">if</span> (!have_shared_key) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsIllegalParameter;</span> <span class="line" id="L349"></span> <span class="line" id="L350"> <span class="tok-kw">const</span> tls_version = <span class="tok-kw">if</span> (supported_version == <span class="tok-number">0</span>) legacy_version <span class="tok-kw">else</span> supported_version;</span> <span class="line" id="L351"> <span class="tok-kw">if</span> (tls_version != <span class="tok-builtin">@intFromEnum</span>(tls.ProtocolVersion.tls_1_3))</span> <span class="line" id="L352"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsIllegalParameter;</span> <span class="line" id="L353"></span> <span class="line" id="L354"> <span class="tok-kw">switch</span> (cipher_suite_tag) {</span> <span class="line" id="L355"> <span class="tok-kw">inline</span> .AES_128_GCM_SHA256,</span> <span class="line" id="L356"> .AES_256_GCM_SHA384,</span> <span class="line" id="L357"> .CHACHA20_POLY1305_SHA256,</span> <span class="line" id="L358"> .AEGIS_256_SHA384,</span> <span class="line" id="L359"> .AEGIS_128L_SHA256,</span> <span class="line" id="L360"> => \|tag\| {</span> <span class="line" id="L361"> <span class="tok-kw">const</span> P = std.meta.TagPayloadByName(tls.HandshakeCipher, <span class="tok-builtin">@tagName</span>(tag));</span> <span class="line" id="L362"> handshake_cipher = <span class="tok-builtin">@unionInit</span>(tls.HandshakeCipher, <span class="tok-builtin">@tagName</span>(tag), .{</span> <span class="line" id="L363"> .handshake_secret = <span class="tok-null">undefined</span>,</span> <span class="line" id="L364"> .master_secret = <span class="tok-null">undefined</span>,</span> <span class="line" id="L365"> .client_handshake_key = <span class="tok-null">undefined</span>,</span> <span class="line" id="L366"> .server_handshake_key = <span class="tok-null">undefined</span>,</span> <span class="line" id="L367"> .client_finished_key = <span class="tok-null">undefined</span>,</span> <span class="line" id="L368"> .server_finished_key = <span class="tok-null">undefined</span>,</span> <span class="line" id="L369"> .client_handshake_iv = <span class="tok-null">undefined</span>,</span> <span class="line" id="L370"> .server_handshake_iv = <span class="tok-null">undefined</span>,</span> <span class="line" id="L371"> .transcript_hash = P.Hash.init(.{}),</span> <span class="line" id="L372"> });</span> <span class="line" id="L373"> <span class="tok-kw">const</span> p = &<span class="tok-builtin">@field</span>(handshake_cipher, <span class="tok-builtin">@tagName</span>(tag));</span> <span class="line" id="L374"> p.transcript_hash.update(client_hello_bytes1); <span class="tok-comment">// Client Hello part 1</span> </span> <span class="line" id="L375"> p.transcript_hash.update(host); <span class="tok-comment">// Client Hello part 2</span> </span> <span class="line" id="L376"> p.transcript_hash.update(server_hello_fragment);</span> <span class="line" id="L377"> <span class="tok-kw">const</span> hello_hash = p.transcript_hash.peek();</span> <span class="line" id="L378"> <span class="tok-kw">const</span> zeroes = [<span class="tok-number">1</span>]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} ** P.Hash.digest_length;</span> <span class="line" id="L379"> <span class="tok-kw">const</span> early_secret = P.Hkdf.extract(&[<span class="tok-number">1</span>]<span class="tok-type">u8</span>{<span class="tok-number">0</span>}, &zeroes);</span> <span class="line" id="L380"> <span class="tok-kw">const</span> empty_hash = tls.emptyHash(P.Hash);</span> <span class="line" id="L381"> <span class="tok-kw">const</span> hs_derived_secret = hkdfExpandLabel(P.Hkdf, early_secret, <span class="tok-str">"derived"</span>, &empty_hash, P.Hash.digest_length);</span> <span class="line" id="L382"> p.handshake_secret = P.Hkdf.extract(&hs_derived_secret, shared_key);</span> <span class="line" id="L383"> <span class="tok-kw">const</span> ap_derived_secret = hkdfExpandLabel(P.Hkdf, p.handshake_secret, <span class="tok-str">"derived"</span>, &empty_hash, P.Hash.digest_length);</span> <span class="line" id="L384"> p.master_secret = P.Hkdf.extract(&ap_derived_secret, &zeroes);</span> <span class="line" id="L385"> <span class="tok-kw">const</span> client_secret = hkdfExpandLabel(P.Hkdf, p.handshake_secret, <span class="tok-str">"c hs traffic"</span>, &hello_hash, P.Hash.digest_length);</span> <span class="line" id="L386"> <span class="tok-kw">const</span> server_secret = hkdfExpandLabel(P.Hkdf, p.handshake_secret, <span class="tok-str">"s hs traffic"</span>, &hello_hash, P.Hash.digest_length);</span> <span class="line" id="L387"> p.client_finished_key = hkdfExpandLabel(P.Hkdf, client_secret, <span class="tok-str">"finished"</span>, <span class="tok-str">""</span>, P.Hmac.key_length);</span> <span class="line" id="L388"> p.server_finished_key = hkdfExpandLabel(P.Hkdf, server_secret, <span class="tok-str">"finished"</span>, <span class="tok-str">""</span>, P.Hmac.key_length);</span> <span class="line" id="L389"> p.client_handshake_key = hkdfExpandLabel(P.Hkdf, client_secret, <span class="tok-str">"key"</span>, <span class="tok-str">""</span>, P.AEAD.key_length);</span> <span class="line" id="L390"> p.server_handshake_key = hkdfExpandLabel(P.Hkdf, server_secret, <span class="tok-str">"key"</span>, <span class="tok-str">""</span>, P.AEAD.key_length);</span> <span class="line" id="L391"> p.client_handshake_iv = hkdfExpandLabel(P.Hkdf, client_secret, <span class="tok-str">"iv"</span>, <span class="tok-str">""</span>, P.AEAD.nonce_length);</span> <span class="line" id="L392"> p.server_handshake_iv = hkdfExpandLabel(P.Hkdf, server_secret, <span class="tok-str">"iv"</span>, <span class="tok-str">""</span>, P.AEAD.nonce_length);</span> <span class="line" id="L393"> },</span> <span class="line" id="L394"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L395"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsIllegalParameter;</span> <span class="line" id="L396"> },</span> <span class="line" id="L397"> }</span> <span class="line" id="L398"> },</span> <span class="line" id="L399"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsUnexpectedMessage,</span> <span class="line" id="L400"> }</span> <span class="line" id="L401"> }</span> <span class="line" id="L402"></span> <span class="line" id="L403"> <span class="tok-comment">// This is used for two purposes:</span> </span> <span class="line" id="L404"> <span class="tok-comment">// * Detect whether a certificate is the first one presented, in which case</span> </span> <span class="line" id="L405"> <span class="tok-comment">// we need to verify the host name.</span> </span> <span class="line" id="L406"> <span class="tok-comment">// * Flip back and forth between the two cleartext buffers in order to keep</span> </span> <span class="line" id="L407"> <span class="tok-comment">// the previous certificate in memory so that it can be verified by the</span> </span> <span class="line" id="L408"> <span class="tok-comment">// next one.</span> </span> <span class="line" id="L409"> <span class="tok-kw">var</span> cert_index: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L410"> <span class="tok-kw">var</span> read_seq: <span class="tok-type">u64</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L411"> <span class="tok-kw">var</span> prev_cert: Certificate.Parsed = <span class="tok-null">undefined</span>;</span> <span class="line" id="L412"> <span class="tok-comment">// Set to true once a trust chain has been established from the first</span> </span> <span class="line" id="L413"> <span class="tok-comment">// certificate to a root CA.</span> </span> <span class="line" id="L414"> <span class="tok-kw">const</span> HandshakeState = <span class="tok-kw">enum</span> {</span> <span class="line" id="L415"> <span class="tok-comment">/// In this state we expect only an encrypted_extensions message.</span></span> <span class="line" id="L416"> encrypted_extensions,</span> <span class="line" id="L417"> <span class="tok-comment">/// In this state we expect certificate messages.</span></span> <span class="line" id="L418"> certificate,</span> <span class="line" id="L419"> <span class="tok-comment">/// In this state we expect certificate or certificate_verify messages.</span></span> <span class="line" id="L420"> <span class="tok-comment">/// certificate messages are ignored since the trust chain is already</span></span> <span class="line" id="L421"> <span class="tok-comment">/// established.</span></span> <span class="line" id="L422"> trust_chain_established,</span> <span class="line" id="L423"> <span class="tok-comment">/// In this state, we expect only the finished message.</span></span> <span class="line" id="L424"> finished,</span> <span class="line" id="L425"> };</span> <span class="line" id="L426"> <span class="tok-kw">var</span> handshake_state: HandshakeState = .encrypted_extensions;</span> <span class="line" id="L427"> <span class="tok-kw">var</span> cleartext_bufs: [<span class="tok-number">2</span>][<span class="tok-number">8000</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L428"> <span class="tok-kw">var</span> main_cert_pub_key_algo: Certificate.AlgorithmCategory = <span class="tok-null">undefined</span>;</span> <span class="line" id="L429"> <span class="tok-kw">var</span> main_cert_pub_key_buf: [<span class="tok-number">600</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L430"> <span class="tok-kw">var</span> main_cert_pub_key_len: <span class="tok-type">u16</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L431"> <span class="tok-kw">const</span> now_sec = std.time.timestamp();</span> <span class="line" id="L432"></span> <span class="line" id="L433"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L434"> <span class="tok-kw">try</span> d.readAtLeastOurAmt(stream, tls.record_header_len);</span> <span class="line" id="L435"> <span class="tok-kw">const</span> record_header = d.buf[d.idx..][<span class="tok-number">0</span>..<span class="tok-number">5</span>];</span> <span class="line" id="L436"> <span class="tok-kw">const</span> ct = d.decode(tls.ContentType);</span> <span class="line" id="L437"> d.skip(<span class="tok-number">2</span>); <span class="tok-comment">// legacy_version</span> </span> <span class="line" id="L438"> <span class="tok-kw">const</span> record_len = d.decode(<span class="tok-type">u16</span>);</span> <span class="line" id="L439"> <span class="tok-kw">try</span> d.readAtLeast(stream, record_len);</span> <span class="line" id="L440"> <span class="tok-kw">var</span> record_decoder = <span class="tok-kw">try</span> d.sub(record_len);</span> <span class="line" id="L441"> <span class="tok-kw">switch</span> (ct) {</span> <span class="line" id="L442"> .change_cipher_spec => {</span> <span class="line" id="L443"> <span class="tok-kw">try</span> record_decoder.ensure(<span class="tok-number">1</span>);</span> <span class="line" id="L444"> <span class="tok-kw">if</span> (record_decoder.decode(<span class="tok-type">u8</span>) != <span class="tok-number">0x01</span>) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsIllegalParameter;</span> <span class="line" id="L445"> },</span> <span class="line" id="L446"> .application_data => {</span> <span class="line" id="L447"> <span class="tok-kw">const</span> cleartext_buf = &cleartext_bufs[cert_index % <span class="tok-number">2</span>];</span> <span class="line" id="L448"></span> <span class="line" id="L449"> <span class="tok-kw">const</span> cleartext = <span class="tok-kw">switch</span> (handshake_cipher) {</span> <span class="line" id="L450"> <span class="tok-kw">inline</span> <span class="tok-kw">else</span> => \|p\| c: {</span> <span class="line" id="L451"> <span class="tok-kw">const</span> P = <span class="tok-builtin">@TypeOf</span>(p.);</span> <span class="line" id="L452"> <span class="tok-kw">const</span> ciphertext_len = record_len - P.AEAD.tag_length;</span> <span class="line" id="L453"> <span class="tok-kw">try</span> record_decoder.ensure(ciphertext_len + P.AEAD.tag_length);</span> <span class="line" id="L454"> <span class="tok-kw">const</span> ciphertext = record_decoder.slice(ciphertext_len);</span> <span class="line" id="L455"> <span class="tok-kw">if</span> (ciphertext.len > cleartext_buf.len) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsRecordOverflow;</span> <span class="line" id="L456"> <span class="tok-kw">const</span> cleartext = cleartext_buf[<span class="tok-number">0</span>..ciphertext.len];</span> <span class="line" id="L457"> <span class="tok-kw">const</span> auth_tag = record_decoder.array(P.AEAD.tag_length).;</span> <span class="line" id="L458"> <span class="tok-kw">const</span> V = <span class="tok-builtin">@Vector</span>(P.AEAD.nonce_length, <span class="tok-type">u8</span>);</span> <span class="line" id="L459"> <span class="tok-kw">const</span> pad = [<span class="tok-number">1</span>]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} * (P.AEAD.nonce_length - <span class="tok-number">8</span>);</span> <span class="line" id="L460"> <span class="tok-kw">const</span> operand: V = pad ++ <span class="tok-builtin">@as</span>([<span class="tok-number">8</span>]<span class="tok-type">u8</span>, <span class="tok-builtin">@bitCast</span>(big(read_seq)));</span> <span class="line" id="L461"> read_seq += <span class="tok-number">1</span>;</span> <span class="line" id="L462"> <span class="tok-kw">const</span> nonce = <span class="tok-builtin">@as</span>(V, p.server_handshake_iv) ^ operand;</span> <span class="line" id="L463"> P.AEAD.decrypt(cleartext, ciphertext, auth_tag, record_header, nonce, p.server_handshake_key) <span class="tok-kw">catch</span></span> <span class="line" id="L464"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsBadRecordMac;</span> <span class="line" id="L465"> <span class="tok-kw">break</span> :c cleartext;</span> <span class="line" id="L466"> },</span> <span class="line" id="L467"> };</span> <span class="line" id="L468"></span> <span class="line" id="L469"> <span class="tok-kw">const</span> inner_ct: tls.ContentType = <span class="tok-builtin">@enumFromInt</span>(cleartext[cleartext.len - <span class="tok-number">1</span>]);</span> <span class="line" id="L470"> <span class="tok-kw">if</span> (inner_ct != .handshake) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsUnexpectedMessage;</span> <span class="line" id="L471"></span> <span class="line" id="L472"> <span class="tok-kw">var</span> ctd = tls.Decoder.fromTheirSlice(cleartext[<span class="tok-number">0</span> .. cleartext.len - <span class="tok-number">1</span>]);</span> <span class="line" id="L473"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L474"> <span class="tok-kw">try</span> ctd.ensure(<span class="tok-number">4</span>);</span> <span class="line" id="L475"> <span class="tok-kw">const</span> handshake_type = ctd.decode(tls.HandshakeType);</span> <span class="line" id="L476"> <span class="tok-kw">const</span> handshake_len = ctd.decode(<span class="tok-type">u24</span>);</span> <span class="line" id="L477"> <span class="tok-kw">var</span> hsd = <span class="tok-kw">try</span> ctd.sub(handshake_len);</span> <span class="line" id="L478"> <span class="tok-kw">const</span> wrapped_handshake = ctd.buf[ctd.idx - handshake_len - <span class="tok-number">4</span> .. ctd.idx];</span> <span class="line" id="L479"> <span class="tok-kw">const</span> handshake = ctd.buf[ctd.idx - handshake_len .. ctd.idx];</span> <span class="line" id="L480"> <span class="tok-kw">switch</span> (handshake_type) {</span> <span class="line" id="L481"> .encrypted_extensions => {</span> <span class="line" id="L482"> <span class="tok-kw">if</span> (handshake_state != .encrypted_extensions) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsUnexpectedMessage;</span> <span class="line" id="L483"> handshake_state = .certificate;</span> <span class="line" id="L484"> <span class="tok-kw">switch</span> (handshake_cipher) {</span> <span class="line" id="L485"> <span class="tok-kw">inline</span> <span class="tok-kw">else</span> => \|p\| p.transcript_hash.update(wrapped_handshake),</span> <span class="line" id="L486"> }</span> <span class="line" id="L487"> <span class="tok-kw">try</span> hsd.ensure(<span class="tok-number">2</span>);</span> <span class="line" id="L488"> <span class="tok-kw">const</span> total_ext_size = hsd.decode(<span class="tok-type">u16</span>);</span> <span class="line" id="L489"> <span class="tok-kw">var</span> all_extd = <span class="tok-kw">try</span> hsd.sub(total_ext_size);</span> <span class="line" id="L490"> <span class="tok-kw">while</span> (!all_extd.eof()) {</span> <span class="line" id="L491"> <span class="tok-kw">try</span> all_extd.ensure(<span class="tok-number">4</span>);</span> <span class="line" id="L492"> <span class="tok-kw">const</span> et = all_extd.decode(tls.ExtensionType);</span> <span class="line" id="L493"> <span class="tok-kw">const</span> ext_size = all_extd.decode(<span class="tok-type">u16</span>);</span> <span class="line" id="L494"> <span class="tok-kw">var</span> extd = <span class="tok-kw">try</span> all_extd.sub(ext_size);</span> <span class="line" id="L495"> _ = extd;</span> <span class="line" id="L496"> <span class="tok-kw">switch</span> (et) {</span> <span class="line" id="L497"> .server_name => {},</span> <span class="line" id="L498"> <span class="tok-kw">else</span> => {},</span> <span class="line" id="L499"> }</span> <span class="line" id="L500"> }</span> <span class="line" id="L501"> },</span> <span class="line" id="L502"> .certificate => cert: {</span> <span class="line" id="L503"> <span class="tok-kw">switch</span> (handshake_cipher) {</span> <span class="line" id="L504"> <span class="tok-kw">inline</span> <span class="tok-kw">else</span> => \|p\| p.transcript_hash.update(wrapped_handshake),</span> <span class="line" id="L505"> }</span> <span class="line" id="L506"> <span class="tok-kw">switch</span> (handshake_state) {</span> <span class="line" id="L507"> .certificate => {},</span> <span class="line" id="L508"> .trust_chain_established => <span class="tok-kw">break</span> :cert,</span> <span class="line" id="L509"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsUnexpectedMessage,</span> <span class="line" id="L510"> }</span> <span class="line" id="L511"> <span class="tok-kw">try</span> hsd.ensure(<span class="tok-number">1</span> + <span class="tok-number">4</span>);</span> <span class="line" id="L512"> <span class="tok-kw">const</span> cert_req_ctx_len = hsd.decode(<span class="tok-type">u8</span>);</span> <span class="line" id="L513"> <span class="tok-kw">if</span> (cert_req_ctx_len != <span class="tok-number">0</span>) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsIllegalParameter;</span> <span class="line" id="L514"> <span class="tok-kw">const</span> certs_size = hsd.decode(<span class="tok-type">u24</span>);</span> <span class="line" id="L515"> <span class="tok-kw">var</span> certs_decoder = <span class="tok-kw">try</span> hsd.sub(certs_size);</span> <span class="line" id="L516"> <span class="tok-kw">while</span> (!certs_decoder.eof()) {</span> <span class="line" id="L517"> <span class="tok-kw">try</span> certs_decoder.ensure(<span class="tok-number">3</span>);</span> <span class="line" id="L518"> <span class="tok-kw">const</span> cert_size = certs_decoder.decode(<span class="tok-type">u24</span>);</span> <span class="line" id="L519"> <span class="tok-kw">var</span> certd = <span class="tok-kw">try</span> certs_decoder.sub(cert_size);</span> <span class="line" id="L520"></span> <span class="line" id="L521"> <span class="tok-kw">const</span> subject_cert: Certificate = .{</span> <span class="line" id="L522"> .buffer = certd.buf,</span> <span class="line" id="L523"> .index = <span class="tok-builtin">@intCast</span>(certd.idx),</span> <span class="line" id="L524"> };</span> <span class="line" id="L525"> <span class="tok-kw">const</span> subject = <span class="tok-kw">try</span> subject_cert.parse();</span> <span class="line" id="L526"> <span class="tok-kw">if</span> (cert_index == <span class="tok-number">0</span>) {</span> <span class="line" id="L527"> <span class="tok-comment">// Verify the host on the first certificate.</span> </span> <span class="line" id="L528"> <span class="tok-kw">try</span> subject.verifyHostName(host);</span> <span class="line" id="L529"></span> <span class="line" id="L530"> <span class="tok-comment">// Keep track of the public key for the</span> </span> <span class="line" id="L531"> <span class="tok-comment">// certificate_verify message later.</span> </span> <span class="line" id="L532"> main_cert_pub_key_algo = subject.pub_key_algo;</span> <span class="line" id="L533"> <span class="tok-kw">const</span> pub_key = subject.pubKey();</span> <span class="line" id="L534"> <span class="tok-kw">if</span> (pub_key.len > main_cert_pub_key_buf.len)</span> <span class="line" id="L535"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.CertificatePublicKeyInvalid;</span> <span class="line" id="L536"> <span class="tok-builtin">@memcpy</span>(main_cert_pub_key_buf[<span class="tok-number">0</span>..pub_key.len], pub_key);</span> <span class="line" id="L537"> main_cert_pub_key_len = <span class="tok-builtin">@intCast</span>(pub_key.len);</span> <span class="line" id="L538"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L539"> <span class="tok-kw">try</span> prev_cert.verify(subject, now_sec);</span> <span class="line" id="L540"> }</span> <span class="line" id="L541"></span> <span class="line" id="L542"> <span class="tok-kw">if</span> (ca_bundle.verify(subject, now_sec)) \|_\| {</span> <span class="line" id="L543"> handshake_state = .trust_chain_established;</span> <span class="line" id="L544"> <span class="tok-kw">break</span> :cert;</span> <span class="line" id="L545"> } <span class="tok-kw">else</span> \|err\| <span class="tok-kw">switch</span> (err) {</span> <span class="line" id="L546"> <span class="tok-kw">error</span>.CertificateIssuerNotFound => {},</span> <span class="line" id="L547"> <span class="tok-kw">else</span> => \|e\| <span class="tok-kw">return</span> e,</span> <span class="line" id="L548"> }</span> <span class="line" id="L549"></span> <span class="line" id="L550"> prev_cert = subject;</span> <span class="line" id="L551"> cert_index += <span class="tok-number">1</span>;</span> <span class="line" id="L552"></span> <span class="line" id="L553"> <span class="tok-kw">try</span> certs_decoder.ensure(<span class="tok-number">2</span>);</span> <span class="line" id="L554"> <span class="tok-kw">const</span> total_ext_size = certs_decoder.decode(<span class="tok-type">u16</span>);</span> <span class="line" id="L555"> <span class="tok-kw">var</span> all_extd = <span class="tok-kw">try</span> certs_decoder.sub(total_ext_size);</span> <span class="line" id="L556"> _ = all_extd;</span> <span class="line" id="L557"> }</span> <span class="line" id="L558"> },</span> <span class="line" id="L559"> .certificate_verify => {</span> <span class="line" id="L560"> <span class="tok-kw">switch</span> (handshake_state) {</span> <span class="line" id="L561"> .trust_chain_established => handshake_state = .finished,</span> <span class="line" id="L562"> .certificate => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsCertificateNotVerified,</span> <span class="line" id="L563"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsUnexpectedMessage,</span> <span class="line" id="L564"> }</span> <span class="line" id="L565"></span> <span class="line" id="L566"> <span class="tok-kw">try</span> hsd.ensure(<span class="tok-number">4</span>);</span> <span class="line" id="L567"> <span class="tok-kw">const</span> scheme = hsd.decode(tls.SignatureScheme);</span> <span class="line" id="L568"> <span class="tok-kw">const</span> sig_len = hsd.decode(<span class="tok-type">u16</span>);</span> <span class="line" id="L569"> <span class="tok-kw">try</span> hsd.ensure(sig_len);</span> <span class="line" id="L570"> <span class="tok-kw">const</span> encoded_sig = hsd.slice(sig_len);</span> <span class="line" id="L571"> <span class="tok-kw">const</span> max_digest_len = <span class="tok-number">64</span>;</span> <span class="line" id="L572"> <span class="tok-kw">var</span> verify_buffer =</span> <span class="line" id="L573"> ([<span class="tok-number">1</span>]<span class="tok-type">u8</span>{<span class="tok-number">0x20</span>} ** <span class="tok-number">64</span>) ++</span> <span class="line" id="L574"> <span class="tok-str">"TLS 1.3, server CertificateVerify\x00"</span>.* ++</span> <span class="line" id="L575"> <span class="tok-builtin">@as</span>([max_digest_len]<span class="tok-type">u8</span>, <span class="tok-null">undefined</span>);</span> <span class="line" id="L576"></span> <span class="line" id="L577"> <span class="tok-kw">const</span> verify_bytes = <span class="tok-kw">switch</span> (handshake_cipher) {</span> <span class="line" id="L578"> <span class="tok-kw">inline</span> <span class="tok-kw">else</span> => \|p\| v: {</span> <span class="line" id="L579"> <span class="tok-kw">const</span> transcript_digest = p.transcript_hash.peek();</span> <span class="line" id="L580"> verify_buffer[verify_buffer.len - max_digest_len ..][<span class="tok-number">0</span>..transcript_digest.len]. = transcript_digest;</span> <span class="line" id="L581"> p.transcript_hash.update(wrapped_handshake);</span> <span class="line" id="L582"> <span class="tok-kw">break</span> :v verify_buffer[<span class="tok-number">0</span> .. verify_buffer.len - max_digest_len + transcript_digest.len];</span> <span class="line" id="L583"> },</span> <span class="line" id="L584"> };</span> <span class="line" id="L585"> <span class="tok-kw">const</span> main_cert_pub_key = main_cert_pub_key_buf[<span class="tok-number">0</span>..main_cert_pub_key_len];</span> <span class="line" id="L586"></span> <span class="line" id="L587"> <span class="tok-kw">switch</span> (scheme) {</span> <span class="line" id="L588"> <span class="tok-kw">inline</span> .ecdsa_secp256r1_sha256,</span> <span class="line" id="L589"> .ecdsa_secp384r1_sha384,</span> <span class="line" id="L590"> => \|comptime_scheme\| {</span> <span class="line" id="L591"> <span class="tok-kw">if</span> (main_cert_pub_key_algo != .X9_62_id_ecPublicKey)</span> <span class="line" id="L592"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsBadSignatureScheme;</span> <span class="line" id="L593"> <span class="tok-kw">const</span> Ecdsa = SchemeEcdsa(comptime_scheme);</span> <span class="line" id="L594"> <span class="tok-kw">const</span> sig = <span class="tok-kw">try</span> Ecdsa.Signature.fromDer(encoded_sig);</span> <span class="line" id="L595"> <span class="tok-kw">const</span> key = <span class="tok-kw">try</span> Ecdsa.PublicKey.fromSec1(main_cert_pub_key);</span> <span class="line" id="L596"> <span class="tok-kw">try</span> sig.verify(verify_bytes, key);</span> <span class="line" id="L597"> },</span> <span class="line" id="L598"> <span class="tok-kw">inline</span> .rsa_pss_rsae_sha256,</span> <span class="line" id="L599"> .rsa_pss_rsae_sha384,</span> <span class="line" id="L600"> .rsa_pss_rsae_sha512,</span> <span class="line" id="L601"> => \|comptime_scheme\| {</span> <span class="line" id="L602"> <span class="tok-kw">if</span> (main_cert_pub_key_algo != .rsaEncryption)</span> <span class="line" id="L603"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsBadSignatureScheme;</span> <span class="line" id="L604"></span> <span class="line" id="L605"> <span class="tok-kw">const</span> Hash = SchemeHash(comptime_scheme);</span> <span class="line" id="L606"> <span class="tok-kw">const</span> rsa = Certificate.rsa;</span> <span class="line" id="L607"> <span class="tok-kw">const</span> components = <span class="tok-kw">try</span> rsa.PublicKey.parseDer(main_cert_pub_key);</span> <span class="line" id="L608"> <span class="tok-kw">const</span> exponent = components.exponent;</span> <span class="line" id="L609"> <span class="tok-kw">const</span> modulus = components.modulus;</span> <span class="line" id="L610"> <span class="tok-kw">switch</span> (modulus.len) {</span> <span class="line" id="L611"> <span class="tok-kw">inline</span> <span class="tok-number">128</span>, <span class="tok-number">256</span>, <span class="tok-number">512</span> => \|modulus_len\| {</span> <span class="line" id="L612"> <span class="tok-kw">const</span> key = <span class="tok-kw">try</span> rsa.PublicKey.fromBytes(exponent, modulus);</span> <span class="line" id="L613"> <span class="tok-kw">const</span> sig = rsa.PSSSignature.fromBytes(modulus_len, encoded_sig);</span> <span class="line" id="L614"> <span class="tok-kw">try</span> rsa.PSSSignature.verify(modulus_len, sig, verify_bytes, key, Hash);</span> <span class="line" id="L615"> },</span> <span class="line" id="L616"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L617"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsBadRsaSignatureBitCount;</span> <span class="line" id="L618"> },</span> <span class="line" id="L619"> }</span> <span class="line" id="L620"> },</span> <span class="line" id="L621"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L622"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsBadSignatureScheme;</span> <span class="line" id="L623"> },</span> <span class="line" id="L624"> }</span> <span class="line" id="L625"> },</span> <span class="line" id="L626"> .finished => {</span> <span class="line" id="L627"> <span class="tok-kw">if</span> (handshake_state != .finished) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsUnexpectedMessage;</span> <span class="line" id="L628"> <span class="tok-comment">// This message is to trick buggy proxies into behaving correctly.</span> </span> <span class="line" id="L629"> <span class="tok-kw">const</span> client_change_cipher_spec_msg = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L630"> <span class="tok-builtin">@intFromEnum</span>(tls.ContentType.change_cipher_spec),</span> <span class="line" id="L631"> <span class="tok-number">0x03</span>, <span class="tok-number">0x03</span>, <span class="tok-comment">// legacy protocol version</span> </span> <span class="line" id="L632"> <span class="tok-number">0x00</span>, <span class="tok-number">0x01</span>, <span class="tok-comment">// length</span> </span> <span class="line" id="L633"> <span class="tok-number">0x01</span>,</span> <span class="line" id="L634"> };</span> <span class="line" id="L635"> <span class="tok-kw">const</span> app_cipher = <span class="tok-kw">switch</span> (handshake_cipher) {</span> <span class="line" id="L636"> <span class="tok-kw">inline</span> <span class="tok-kw">else</span> => \|p, tag\| c: {</span> <span class="line" id="L637"> <span class="tok-kw">const</span> P = <span class="tok-builtin">@TypeOf</span>(p.);</span> <span class="line" id="L638"> <span class="tok-kw">const</span> finished_digest = p.transcript_hash.peek();</span> <span class="line" id="L639"> p.transcript_hash.update(wrapped_handshake);</span> <span class="line" id="L640"> <span class="tok-kw">const</span> expected_server_verify_data = tls.hmac(P.Hmac, &finished_digest, p.server_finished_key);</span> <span class="line" id="L641"> <span class="tok-kw">if</span> (!mem.eql(<span class="tok-type">u8</span>, &expected_server_verify_data, handshake))</span> <span class="line" id="L642"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsDecryptError;</span> <span class="line" id="L643"> <span class="tok-kw">const</span> handshake_hash = p.transcript_hash.finalResult();</span> <span class="line" id="L644"> <span class="tok-kw">const</span> verify_data = tls.hmac(P.Hmac, &handshake_hash, p.client_finished_key);</span> <span class="line" id="L645"> <span class="tok-kw">const</span> out_cleartext = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L646"> <span class="tok-builtin">@intFromEnum</span>(tls.HandshakeType.finished),</span> <span class="line" id="L647"> <span class="tok-number">0</span>, <span class="tok-number">0</span>, verify_data.len, <span class="tok-comment">// length</span> </span> <span class="line" id="L648"> } ++ verify_data ++ [<span class="tok-number">1</span>]<span class="tok-type">u8</span>{<span class="tok-builtin">@intFromEnum</span>(tls.ContentType.handshake)};</span> <span class="line" id="L649"></span> <span class="line" id="L650"> <span class="tok-kw">const</span> wrapped_len = out_cleartext.len + P.AEAD.tag_length;</span> <span class="line" id="L651"></span> <span class="line" id="L652"> <span class="tok-kw">var</span> finished_msg = [_]<span class="tok-type">u8</span>{</span> <span class="line" id="L653"> <span class="tok-builtin">@intFromEnum</span>(tls.ContentType.application_data),</span> <span class="line" id="L654"> <span class="tok-number">0x03</span>, <span class="tok-number">0x03</span>, <span class="tok-comment">// legacy protocol version</span> </span> <span class="line" id="L655"> <span class="tok-number">0</span>, wrapped_len, <span class="tok-comment">// byte length of encrypted record</span> </span> <span class="line" id="L656"> } ++ <span class="tok-builtin">@as</span>([wrapped_len]<span class="tok-type">u8</span>, <span class="tok-null">undefined</span>);</span> <span class="line" id="L657"></span> <span class="line" id="L658"> <span class="tok-kw">const</span> ad = finished_msg[<span class="tok-number">0</span>..<span class="tok-number">5</span>];</span> <span class="line" id="L659"> <span class="tok-kw">const</span> ciphertext = finished_msg[<span class="tok-number">5</span>..][<span class="tok-number">0</span>..out_cleartext.len];</span> <span class="line" id="L660"> <span class="tok-kw">const</span> auth_tag = finished_msg[finished_msg.len - P.AEAD.tag_length ..];</span> <span class="line" id="L661"> <span class="tok-kw">const</span> nonce = p.client_handshake_iv;</span> <span class="line" id="L662"> P.AEAD.encrypt(ciphertext, auth_tag, &out_cleartext, ad, nonce, p.client_handshake_key);</span> <span class="line" id="L663"></span> <span class="line" id="L664"> <span class="tok-kw">const</span> both_msgs = client_change_cipher_spec_msg ++ finished_msg;</span> <span class="line" id="L665"> <span class="tok-kw">try</span> stream.writeAll(&both_msgs);</span> <span class="line" id="L666"></span> <span class="line" id="L667"> <span class="tok-kw">const</span> client_secret = hkdfExpandLabel(P.Hkdf, p.master_secret, <span class="tok-str">"c ap traffic"</span>, &handshake_hash, P.Hash.digest_length);</span> <span class="line" id="L668"> <span class="tok-kw">const</span> server_secret = hkdfExpandLabel(P.Hkdf, p.master_secret, <span class="tok-str">"s ap traffic"</span>, &handshake_hash, P.Hash.digest_length);</span> <span class="line" id="L669"> <span class="tok-kw">break</span> :c <span class="tok-builtin">@unionInit</span>(tls.ApplicationCipher, <span class="tok-builtin">@tagName</span>(tag), .{</span> <span class="line" id="L670"> .client_secret = client_secret,</span> <span class="line" id="L671"> .server_secret = server_secret,</span> <span class="line" id="L672"> .client_key = hkdfExpandLabel(P.Hkdf, client_secret, <span class="tok-str">"key"</span>, <span class="tok-str">""</span>, P.AEAD.key_length),</span> <span class="line" id="L673"> .server_key = hkdfExpandLabel(P.Hkdf, server_secret, <span class="tok-str">"key"</span>, <span class="tok-str">""</span>, P.AEAD.key_length),</span> <span class="line" id="L674"> .client_iv = hkdfExpandLabel(P.Hkdf, client_secret, <span class="tok-str">"iv"</span>, <span class="tok-str">""</span>, P.AEAD.nonce_length),</span> <span class="line" id="L675"> .server_iv = hkdfExpandLabel(P.Hkdf, server_secret, <span class="tok-str">"iv"</span>, <span class="tok-str">""</span>, P.AEAD.nonce_length),</span> <span class="line" id="L676"> });</span> <span class="line" id="L677"> },</span> <span class="line" id="L678"> };</span> <span class="line" id="L679"> <span class="tok-kw">const</span> leftover = d.rest();</span> <span class="line" id="L680"> <span class="tok-kw">var</span> client: Client = .{</span> <span class="line" id="L681"> .read_seq = <span class="tok-number">0</span>,</span> <span class="line" id="L682"> .write_seq = <span class="tok-number">0</span>,</span> <span class="line" id="L683"> .partial_cleartext_idx = <span class="tok-number">0</span>,</span> <span class="line" id="L684"> .partial_ciphertext_idx = <span class="tok-number">0</span>,</span> <span class="line" id="L685"> .partial_ciphertext_end = <span class="tok-builtin">@intCast</span>(leftover.len),</span> <span class="line" id="L686"> .received_close_notify = <span class="tok-null">false</span>,</span> <span class="line" id="L687"> .application_cipher = app_cipher,</span> <span class="line" id="L688"> .partially_read_buffer = <span class="tok-null">undefined</span>,</span> <span class="line" id="L689"> };</span> <span class="line" id="L690"> <span class="tok-builtin">@memcpy</span>(client.partially_read_buffer[<span class="tok-number">0</span>..leftover.len], leftover);</span> <span class="line" id="L691"> <span class="tok-kw">return</span> client;</span> <span class="line" id="L692"> },</span> <span class="line" id="L693"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L694"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsUnexpectedMessage;</span> <span class="line" id="L695"> },</span> <span class="line" id="L696"> }</span> <span class="line" id="L697"> <span class="tok-kw">if</span> (ctd.eof()) <span class="tok-kw">break</span>;</span> <span class="line" id="L698"> }</span> <span class="line" id="L699"> },</span> <span class="line" id="L700"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L701"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsUnexpectedMessage;</span> <span class="line" id="L702"> },</span> <span class="line" id="L703"> }</span> <span class="line" id="L704"> }</span> <span class="line" id="L705">}</span> <span class="line" id="L706"></span> <span class="line" id="L707"><span class="tok-comment">/// Sends TLS-encrypted data to `stream`, which must conform to `StreamInterface`.</span></span> <span class="line" id="L708"><span class="tok-comment">/// Returns the number of plaintext bytes sent, which may be fewer than `bytes.len`.</span></span> <span class="line" id="L709"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">write</span>(c: Client, stream: <span class="tok-kw">anytype</span>, bytes: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) !<span class="tok-type">usize</span> {</span> <span class="line" id="L710"> <span class="tok-kw">return</span> writeEnd(c, stream, bytes, <span class="tok-null">false</span>);</span> <span class="line" id="L711">}</span> <span class="line" id="L712"></span> <span class="line" id="L713"><span class="tok-comment">/// Sends TLS-encrypted data to `stream`, which must conform to `StreamInterface`.</span></span> <span class="line" id="L714"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">writeAll</span>(c: Client, stream: <span class="tok-kw">anytype</span>, bytes: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L715"> <span class="tok-kw">var</span> index: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L716"> <span class="tok-kw">while</span> (index < bytes.len) {</span> <span class="line" id="L717"> index += <span class="tok-kw">try</span> c.write(stream, bytes[index..]);</span> <span class="line" id="L718"> }</span> <span class="line" id="L719">}</span> <span class="line" id="L720"></span> <span class="line" id="L721"><span class="tok-comment">/// Sends TLS-encrypted data to `stream`, which must conform to `StreamInterface`.</span></span> <span class="line" id="L722"><span class="tok-comment">/// If `end` is true, then this function additionally sends a `close_notify` alert,</span></span> <span class="line" id="L723"><span class="tok-comment">/// which is necessary for the server to distinguish between a properly finished</span></span> <span class="line" id="L724"><span class="tok-comment">/// TLS session, or a truncation attack.</span></span> <span class="line" id="L725"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">writeAllEnd</span>(c: Client, stream: <span class="tok-kw">anytype</span>, bytes: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, end: <span class="tok-type">bool</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L726"> <span class="tok-kw">var</span> index: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L727"> <span class="tok-kw">while</span> (index < bytes.len) {</span> <span class="line" id="L728"> index += <span class="tok-kw">try</span> c.writeEnd(stream, bytes[index..], end);</span> <span class="line" id="L729"> }</span> <span class="line" id="L730">}</span> <span class="line" id="L731"></span> <span class="line" id="L732"><span class="tok-comment">/// Sends TLS-encrypted data to `stream`, which must conform to `StreamInterface`.</span></span> <span class="line" id="L733"><span class="tok-comment">/// Returns the number of plaintext bytes sent, which may be fewer than `bytes.len`.</span></span> <span class="line" id="L734"><span class="tok-comment">/// If `end` is true, then this function additionally sends a `close_notify` alert,</span></span> <span class="line" id="L735"><span class="tok-comment">/// which is necessary for the server to distinguish between a properly finished</span></span> <span class="line" id="L736"><span class="tok-comment">/// TLS session, or a truncation attack.</span></span> <span class="line" id="L737"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">writeEnd</span>(c: Client, stream: <span class="tok-kw">anytype</span>, bytes: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, end: <span class="tok-type">bool</span>) !<span class="tok-type">usize</span> {</span> <span class="line" id="L738"> <span class="tok-kw">var</span> ciphertext_buf: [tls.max_ciphertext_record_len * <span class="tok-number">4</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L739"> <span class="tok-kw">var</span> iovecs_buf: [<span class="tok-number">6</span>]std.os.iovec_const = <span class="tok-null">undefined</span>;</span> <span class="line" id="L740"> <span class="tok-kw">var</span> prepared = prepareCiphertextRecord(c, &iovecs_buf, &ciphertext_buf, bytes, .application_data);</span> <span class="line" id="L741"> <span class="tok-kw">if</span> (end) {</span> <span class="line" id="L742"> prepared.iovec_end += prepareCiphertextRecord(</span> <span class="line" id="L743"> c,</span> <span class="line" id="L744"> iovecs_buf[prepared.iovec_end..],</span> <span class="line" id="L745"> ciphertext_buf[prepared.ciphertext_end..],</span> <span class="line" id="L746"> &tls.close_notify_alert,</span> <span class="line" id="L747"> .alert,</span> <span class="line" id="L748"> ).iovec_end;</span> <span class="line" id="L749"> }</span> <span class="line" id="L750"></span> <span class="line" id="L751"> <span class="tok-kw">const</span> iovec_end = prepared.iovec_end;</span> <span class="line" id="L752"> <span class="tok-kw">const</span> overhead_len = prepared.overhead_len;</span> <span class="line" id="L753"></span> <span class="line" id="L754"> <span class="tok-comment">// Ideally we would call writev exactly once here, however, we must ensure</span> </span> <span class="line" id="L755"> <span class="tok-comment">// that we don't return with a record partially written.</span> </span> <span class="line" id="L756"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L757"> <span class="tok-kw">var</span> total_amt: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L758"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L759"> <span class="tok-kw">var</span> amt = <span class="tok-kw">try</span> stream.writev(iovecs_buf[i..iovec_end]);</span> <span class="line" id="L760"> <span class="tok-kw">while</span> (amt >= iovecs_buf[i].iov_len) {</span> <span class="line" id="L761"> <span class="tok-kw">const</span> encrypted_amt = iovecs_buf[i].iov_len;</span> <span class="line" id="L762"> total_amt += encrypted_amt - overhead_len;</span> <span class="line" id="L763"> amt -= encrypted_amt;</span> <span class="line" id="L764"> i += <span class="tok-number">1</span>;</span> <span class="line" id="L765"> <span class="tok-comment">// Rely on the property that iovecs delineate records, meaning that</span> </span> <span class="line" id="L766"> <span class="tok-comment">// if amt equals zero here, we have fortunately found ourselves</span> </span> <span class="line" id="L767"> <span class="tok-comment">// with a short read that aligns at the record boundary.</span> </span> <span class="line" id="L768"> <span class="tok-kw">if</span> (i >= iovec_end) <span class="tok-kw">return</span> total_amt;</span> <span class="line" id="L769"> <span class="tok-comment">// We also cannot return on a vector boundary if the final close_notify is</span> </span> <span class="line" id="L770"> <span class="tok-comment">// not sent; otherwise the caller would not know to retry the call.</span> </span> <span class="line" id="L771"> <span class="tok-kw">if</span> (amt == <span class="tok-number">0</span> <span class="tok-kw">and</span> (!end <span class="tok-kw">or</span> i < iovec_end - <span class="tok-number">1</span>)) <span class="tok-kw">return</span> total_amt;</span> <span class="line" id="L772"> }</span> <span class="line" id="L773"> iovecs_buf[i].iov_base += amt;</span> <span class="line" id="L774"> iovecs_buf[i].iov_len -= amt;</span> <span class="line" id="L775"> }</span> <span class="line" id="L776">}</span> <span class="line" id="L777"></span> <span class="line" id="L778"><span class="tok-kw">fn</span> <span class="tok-fn">prepareCiphertextRecord</span>(</span> <span class="line" id="L779"> c: Client,</span> <span class="line" id="L780"> iovecs: []std.os.iovec_const,</span> <span class="line" id="L781"> ciphertext_buf: []<span class="tok-type">u8</span>,</span> <span class="line" id="L782"> bytes: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L783"> inner_content_type: tls.ContentType,</span> <span class="line" id="L784">) <span class="tok-kw">struct</span> {</span> <span class="line" id="L785"> iovec_end: <span class="tok-type">usize</span>,</span> <span class="line" id="L786"> ciphertext_end: <span class="tok-type">usize</span>,</span> <span class="line" id="L787"> <span class="tok-comment">/// How many bytes are taken up by overhead per record.</span></span> <span class="line" id="L788"> overhead_len: <span class="tok-type">usize</span>,</span> <span class="line" id="L789">} {</span> <span class="line" id="L790"> <span class="tok-comment">// Due to the trailing inner content type byte in the ciphertext, we need</span> </span> <span class="line" id="L791"> <span class="tok-comment">// an additional buffer for storing the cleartext into before encrypting.</span> </span> <span class="line" id="L792"> <span class="tok-kw">var</span> cleartext_buf: [max_ciphertext_len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L793"> <span class="tok-kw">var</span> ciphertext_end: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L794"> <span class="tok-kw">var</span> iovec_end: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L795"> <span class="tok-kw">var</span> bytes_i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L796"> <span class="tok-kw">switch</span> (c.application_cipher) {</span> <span class="line" id="L797"> <span class="tok-kw">inline</span> <span class="tok-kw">else</span> => \|p\| {</span> <span class="line" id="L798"> <span class="tok-kw">const</span> P = <span class="tok-builtin">@TypeOf</span>(p.);</span> <span class="line" id="L799"> <span class="tok-kw">const</span> V = <span class="tok-builtin">@Vector</span>(P.AEAD.nonce_length, <span class="tok-type">u8</span>);</span> <span class="line" id="L800"> <span class="tok-kw">const</span> overhead_len = tls.record_header_len + P.AEAD.tag_length + <span class="tok-number">1</span>;</span> <span class="line" id="L801"> <span class="tok-kw">const</span> close_notify_alert_reserved = tls.close_notify_alert.len + overhead_len;</span> <span class="line" id="L802"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L803"> <span class="tok-kw">const</span> encrypted_content_len: <span class="tok-type">u16</span> = <span class="tok-builtin">@intCast</span>(<span class="tok-builtin">@min</span>(</span> <span class="line" id="L804"> <span class="tok-builtin">@min</span>(bytes.len - bytes_i, max_ciphertext_len - <span class="tok-number">1</span>),</span> <span class="line" id="L805"> ciphertext_buf.len - close_notify_alert_reserved -</span> <span class="line" id="L806"> overhead_len - ciphertext_end,</span> <span class="line" id="L807"> ));</span> <span class="line" id="L808"> <span class="tok-kw">if</span> (encrypted_content_len == <span class="tok-number">0</span>) <span class="tok-kw">return</span> .{</span> <span class="line" id="L809"> .iovec_end = iovec_end,</span> <span class="line" id="L810"> .ciphertext_end = ciphertext_end,</span> <span class="line" id="L811"> .overhead_len = overhead_len,</span> <span class="line" id="L812"> };</span> <span class="line" id="L813"></span> <span class="line" id="L814"> <span class="tok-builtin">@memcpy</span>(cleartext_buf[<span class="tok-number">0</span>..encrypted_content_len], bytes[bytes_i..][<span class="tok-number">0</span>..encrypted_content_len]);</span> <span class="line" id="L815"> cleartext_buf[encrypted_content_len] = <span class="tok-builtin">@intFromEnum</span>(inner_content_type);</span> <span class="line" id="L816"> bytes_i += encrypted_content_len;</span> <span class="line" id="L817"> <span class="tok-kw">const</span> ciphertext_len = encrypted_content_len + <span class="tok-number">1</span>;</span> <span class="line" id="L818"> <span class="tok-kw">const</span> cleartext = cleartext_buf[<span class="tok-number">0</span>..ciphertext_len];</span> <span class="line" id="L819"></span> <span class="line" id="L820"> <span class="tok-kw">const</span> record_start = ciphertext_end;</span> <span class="line" id="L821"> <span class="tok-kw">const</span> ad = ciphertext_buf[ciphertext_end..][<span class="tok-number">0</span>..<span class="tok-number">5</span>];</span> <span class="line" id="L822"> ad. =</span> <span class="line" id="L823"> [_]<span class="tok-type">u8</span>{<span class="tok-builtin">@intFromEnum</span>(tls.ContentType.application_data)} ++</span> <span class="line" id="L824"> int2(<span class="tok-builtin">@intFromEnum</span>(tls.ProtocolVersion.tls_1_2)) ++</span> <span class="line" id="L825"> int2(ciphertext_len + P.AEAD.tag_length);</span> <span class="line" id="L826"> ciphertext_end += ad.len;</span> <span class="line" id="L827"> <span class="tok-kw">const</span> ciphertext = ciphertext_buf[ciphertext_end..][<span class="tok-number">0</span>..ciphertext_len];</span> <span class="line" id="L828"> ciphertext_end += ciphertext_len;</span> <span class="line" id="L829"> <span class="tok-kw">const</span> auth_tag = ciphertext_buf[ciphertext_end..][<span class="tok-number">0</span>..P.AEAD.tag_length];</span> <span class="line" id="L830"> ciphertext_end += auth_tag.len;</span> <span class="line" id="L831"> <span class="tok-kw">const</span> pad = [<span class="tok-number">1</span>]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} ** (P.AEAD.nonce_length - <span class="tok-number">8</span>);</span> <span class="line" id="L832"> <span class="tok-kw">const</span> operand: V = pad ++ <span class="tok-builtin">@as</span>([<span class="tok-number">8</span>]<span class="tok-type">u8</span>, <span class="tok-builtin">@bitCast</span>(big(c.write_seq)));</span> <span class="line" id="L833"> c.write_seq += <span class="tok-number">1</span>; <span class="tok-comment">// TODO send key_update on overflow</span> </span> <span class="line" id="L834"> <span class="tok-kw">const</span> nonce = <span class="tok-builtin">@as</span>(V, p.client_iv) ^ operand;</span> <span class="line" id="L835"> P.AEAD.encrypt(ciphertext, auth_tag, cleartext, ad, nonce, p.client_key);</span> <span class="line" id="L836"></span> <span class="line" id="L837"> <span class="tok-kw">const</span> record = ciphertext_buf[record_start..ciphertext_end];</span> <span class="line" id="L838"> iovecs[iovec_end] = .{</span> <span class="line" id="L839"> .iov_base = record.ptr,</span> <span class="line" id="L840"> .iov_len = record.len,</span> <span class="line" id="L841"> };</span> <span class="line" id="L842"> iovec_end += <span class="tok-number">1</span>;</span> <span class="line" id="L843"> }</span> <span class="line" id="L844"> },</span> <span class="line" id="L845"> }</span> <span class="line" id="L846">}</span> <span class="line" id="L847"></span> <span class="line" id="L848"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">eof</span>(c: Client) <span class="tok-type">bool</span> {</span> <span class="line" id="L849"> <span class="tok-kw">return</span> c.received_close_notify <span class="tok-kw">and</span></span> <span class="line" id="L850"> c.partial_cleartext_idx >= c.partial_ciphertext_idx <span class="tok-kw">and</span></span> <span class="line" id="L851"> c.partial_ciphertext_idx >= c.partial_ciphertext_end;</span> <span class="line" id="L852">}</span> <span class="line" id="L853"></span> <span class="line" id="L854"><span class="tok-comment">/// Receives TLS-encrypted data from `stream`, which must conform to `StreamInterface`.</span></span> <span class="line" id="L855"><span class="tok-comment">/// Returns the number of bytes read, calling the underlying read function the</span></span> <span class="line" id="L856"><span class="tok-comment">/// minimal number of times until the buffer has at least `len` bytes filled.</span></span> <span class="line" id="L857"><span class="tok-comment">/// If the number read is less than `len` it means the stream reached the end.</span></span> <span class="line" id="L858"><span class="tok-comment">/// Reaching the end of the stream is not an error condition.</span></span> <span class="line" id="L859"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">readAtLeast</span>(c: Client, stream: <span class="tok-kw">anytype</span>, buffer: []<span class="tok-type">u8</span>, len: <span class="tok-type">usize</span>) !<span class="tok-type">usize</span> {</span> <span class="line" id="L860"> <span class="tok-kw">var</span> iovecs = [<span class="tok-number">1</span>]std.os.iovec{.{ .iov_base = buffer.ptr, .iov_len = buffer.len }};</span> <span class="line" id="L861"> <span class="tok-kw">return</span> readvAtLeast(c, stream, &iovecs, len);</span> <span class="line" id="L862">}</span> <span class="line" id="L863"></span> <span class="line" id="L864"><span class="tok-comment">/// Receives TLS-encrypted data from `stream`, which must conform to `StreamInterface`.</span></span> <span class="line" id="L865"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">read</span>(c: Client, stream: <span class="tok-kw">anytype</span>, buffer: []<span class="tok-type">u8</span>) !<span class="tok-type">usize</span> {</span> <span class="line" id="L866"> <span class="tok-kw">return</span> readAtLeast(c, stream, buffer, <span class="tok-number">1</span>);</span> <span class="line" id="L867">}</span> <span class="line" id="L868"></span> <span class="line" id="L869"><span class="tok-comment">/// Receives TLS-encrypted data from `stream`, which must conform to `StreamInterface`.</span></span> <span class="line" id="L870"><span class="tok-comment">/// Returns the number of bytes read. If the number read is smaller than</span></span> <span class="line" id="L871"><span class="tok-comment">/// `buffer.len`, it means the stream reached the end. Reaching the end of the</span></span> <span class="line" id="L872"><span class="tok-comment">/// stream is not an error condition.</span></span> <span class="line" id="L873"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">readAll</span>(c: Client, stream: <span class="tok-kw">anytype</span>, buffer: []<span class="tok-type">u8</span>) !<span class="tok-type">usize</span> {</span> <span class="line" id="L874"> <span class="tok-kw">return</span> readAtLeast(c, stream, buffer, buffer.len);</span> <span class="line" id="L875">}</span> <span class="line" id="L876"></span> <span class="line" id="L877"><span class="tok-comment">/// Receives TLS-encrypted data from `stream`, which must conform to `StreamInterface`.</span></span> <span class="line" id="L878"><span class="tok-comment">/// Returns the number of bytes read. If the number read is less than the space</span></span> <span class="line" id="L879"><span class="tok-comment">/// provided it means the stream reached the end. Reaching the end of the</span></span> <span class="line" id="L880"><span class="tok-comment">/// stream is not an error condition.</span></span> <span class="line" id="L881"><span class="tok-comment">/// The `iovecs` parameter is mutable because this function needs to mutate the fields in</span></span> <span class="line" id="L882"><span class="tok-comment">/// order to handle partial reads from the underlying stream layer.</span></span> <span class="line" id="L883"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">readv</span>(c: Client, stream: <span class="tok-kw">anytype</span>, iovecs: []std.os.iovec) !<span class="tok-type">usize</span> {</span> <span class="line" id="L884"> <span class="tok-kw">return</span> readvAtLeast(c, stream, iovecs);</span> <span class="line" id="L885">}</span> <span class="line" id="L886"></span> <span class="line" id="L887"><span class="tok-comment">/// Receives TLS-encrypted data from `stream`, which must conform to `StreamInterface`.</span></span> <span class="line" id="L888"><span class="tok-comment">/// Returns the number of bytes read, calling the underlying read function the</span></span> <span class="line" id="L889"><span class="tok-comment">/// minimal number of times until the iovecs have at least `len` bytes filled.</span></span> <span class="line" id="L890"><span class="tok-comment">/// If the number read is less than `len` it means the stream reached the end.</span></span> <span class="line" id="L891"><span class="tok-comment">/// Reaching the end of the stream is not an error condition.</span></span> <span class="line" id="L892"><span class="tok-comment">/// The `iovecs` parameter is mutable because this function needs to mutate the fields in</span></span> <span class="line" id="L893"><span class="tok-comment">/// order to handle partial reads from the underlying stream layer.</span></span> <span class="line" id="L894"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">readvAtLeast</span>(c: Client, stream: <span class="tok-kw">anytype</span>, iovecs: []std.os.iovec, len: <span class="tok-type">usize</span>) !<span class="tok-type">usize</span> {</span> <span class="line" id="L895"> <span class="tok-kw">if</span> (c.eof()) <span class="tok-kw">return</span> <span class="tok-number">0</span>;</span> <span class="line" id="L896"></span> <span class="line" id="L897"> <span class="tok-kw">var</span> off_i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L898"> <span class="tok-kw">var</span> vec_i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L899"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L900"> <span class="tok-kw">var</span> amt = <span class="tok-kw">try</span> c.readvAdvanced(stream, iovecs[vec_i..]);</span> <span class="line" id="L901"> off_i += amt;</span> <span class="line" id="L902"> <span class="tok-kw">if</span> (c.eof() <span class="tok-kw">or</span> off_i >= len) <span class="tok-kw">return</span> off_i;</span> <span class="line" id="L903"> <span class="tok-kw">while</span> (amt >= iovecs[vec_i].iov_len) {</span> <span class="line" id="L904"> amt -= iovecs[vec_i].iov_len;</span> <span class="line" id="L905"> vec_i += <span class="tok-number">1</span>;</span> <span class="line" id="L906"> }</span> <span class="line" id="L907"> iovecs[vec_i].iov_base += amt;</span> <span class="line" id="L908"> iovecs[vec_i].iov_len -= amt;</span> <span class="line" id="L909"> }</span> <span class="line" id="L910">}</span> <span class="line" id="L911"></span> <span class="line" id="L912"><span class="tok-comment">/// Receives TLS-encrypted data from `stream`, which must conform to `StreamInterface`.</span></span> <span class="line" id="L913"><span class="tok-comment">/// Returns number of bytes that have been read, populated inside `iovecs`. A</span></span> <span class="line" id="L914"><span class="tok-comment">/// return value of zero bytes does not mean end of stream. Instead, check the `eof()`</span></span> <span class="line" id="L915"><span class="tok-comment">/// for the end of stream. The `eof()` may be true after any call to</span></span> <span class="line" id="L916"><span class="tok-comment">/// `read`, including when greater than zero bytes are returned, and this</span></span> <span class="line" id="L917"><span class="tok-comment">/// function asserts that `eof()` is `false`.</span></span> <span class="line" id="L918"><span class="tok-comment">/// See `readv` for a higher level function that has the same, familiar API as</span></span> <span class="line" id="L919"><span class="tok-comment">/// other read functions, such as `std.fs.File.read`.</span></span> <span class="line" id="L920"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">readvAdvanced</span>(c: Client, stream: <span class="tok-kw">anytype</span>, iovecs: []<span class="tok-kw">const</span> std.os.iovec) !<span class="tok-type">usize</span> {</span> <span class="line" id="L921"> <span class="tok-kw">var</span> vp: VecPut = .{ .iovecs = iovecs };</span> <span class="line" id="L922"></span> <span class="line" id="L923"> <span class="tok-comment">// Give away the buffered cleartext we have, if any.</span> </span> <span class="line" id="L924"> <span class="tok-kw">const</span> partial_cleartext = c.partially_read_buffer[c.partial_cleartext_idx..c.partial_ciphertext_idx];</span> <span class="line" id="L925"> <span class="tok-kw">if</span> (partial_cleartext.len > <span class="tok-number">0</span>) {</span> <span class="line" id="L926"> <span class="tok-kw">const</span> amt: <span class="tok-type">u15</span> = <span class="tok-builtin">@intCast</span>(vp.put(partial_cleartext));</span> <span class="line" id="L927"> c.partial_cleartext_idx += amt;</span> <span class="line" id="L928"></span> <span class="line" id="L929"> <span class="tok-kw">if</span> (c.partial_cleartext_idx == c.partial_ciphertext_idx <span class="tok-kw">and</span></span> <span class="line" id="L930"> c.partial_ciphertext_end == c.partial_ciphertext_idx)</span> <span class="line" id="L931"> {</span> <span class="line" id="L932"> <span class="tok-comment">// The buffer is now empty.</span> </span> <span class="line" id="L933"> c.partial_cleartext_idx = <span class="tok-number">0</span>;</span> <span class="line" id="L934"> c.partial_ciphertext_idx = <span class="tok-number">0</span>;</span> <span class="line" id="L935"> c.partial_ciphertext_end = <span class="tok-number">0</span>;</span> <span class="line" id="L936"> }</span> <span class="line" id="L937"></span> <span class="line" id="L938"> <span class="tok-kw">if</span> (c.received_close_notify) {</span> <span class="line" id="L939"> c.partial_ciphertext_end = <span class="tok-number">0</span>;</span> <span class="line" id="L940"> assert(vp.total == amt);</span> <span class="line" id="L941"> <span class="tok-kw">return</span> amt;</span> <span class="line" id="L942"> } <span class="tok-kw">else</span> <span class="tok-kw">if</span> (amt > <span class="tok-number">0</span>) {</span> <span class="line" id="L943"> <span class="tok-comment">// We don't need more data, so don't call read.</span> </span> <span class="line" id="L944"> assert(vp.total == amt);</span> <span class="line" id="L945"> <span class="tok-kw">return</span> amt;</span> <span class="line" id="L946"> }</span> <span class="line" id="L947"> }</span> <span class="line" id="L948"></span> <span class="line" id="L949"> assert(!c.received_close_notify);</span> <span class="line" id="L950"></span> <span class="line" id="L951"> <span class="tok-comment">// Ideally, this buffer would never be used. It is needed when `iovecs` are</span> </span> <span class="line" id="L952"> <span class="tok-comment">// too small to fit the cleartext, which may be as large as `max_ciphertext_len`.</span> </span> <span class="line" id="L953"> <span class="tok-kw">var</span> cleartext_stack_buffer: [max_ciphertext_len]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L954"> <span class="tok-comment">// Temporarily stores ciphertext before decrypting it and giving it to `iovecs`.</span> </span> <span class="line" id="L955"> <span class="tok-kw">var</span> in_stack_buffer: [max_ciphertext_len * <span class="tok-number">4</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L956"> <span class="tok-comment">// How many bytes left in the user's buffer.</span> </span> <span class="line" id="L957"> <span class="tok-kw">const</span> free_size = vp.freeSize();</span> <span class="line" id="L958"> <span class="tok-comment">// The amount of the user's buffer that we need to repurpose for storing</span> </span> <span class="line" id="L959"> <span class="tok-comment">// ciphertext. The end of the buffer will be used for such purposes.</span> </span> <span class="line" id="L960"> <span class="tok-kw">const</span> ciphertext_buf_len = (free_size / <span class="tok-number">2</span>) -\| in_stack_buffer.len;</span> <span class="line" id="L961"> <span class="tok-comment">// The amount of the user's buffer that will be used to give cleartext. The</span> </span> <span class="line" id="L962"> <span class="tok-comment">// beginning of the buffer will be used for such purposes.</span> </span> <span class="line" id="L963"> <span class="tok-kw">const</span> cleartext_buf_len = free_size - ciphertext_buf_len;</span> <span class="line" id="L964"></span> <span class="line" id="L965"> <span class="tok-comment">// Recoup `partially_read_buffer space`. This is necessary because it is assumed</span> </span> <span class="line" id="L966"> <span class="tok-comment">// below that `frag0` is big enough to hold at least one record.</span> </span> <span class="line" id="L967"> limitedOverlapCopy(c.partially_read_buffer[<span class="tok-number">0</span>..c.partial_ciphertext_end], c.partial_ciphertext_idx);</span> <span class="line" id="L968"> c.partial_ciphertext_end -= c.partial_ciphertext_idx;</span> <span class="line" id="L969"> c.partial_ciphertext_idx = <span class="tok-number">0</span>;</span> <span class="line" id="L970"> c.partial_cleartext_idx = <span class="tok-number">0</span>;</span> <span class="line" id="L971"> <span class="tok-kw">const</span> first_iov = c.partially_read_buffer[c.partial_ciphertext_end..];</span> <span class="line" id="L972"></span> <span class="line" id="L973"> <span class="tok-kw">var</span> ask_iovecs_buf: [<span class="tok-number">2</span>]std.os.iovec = .{</span> <span class="line" id="L974"> .{</span> <span class="line" id="L975"> .iov_base = first_iov.ptr,</span> <span class="line" id="L976"> .iov_len = first_iov.len,</span> <span class="line" id="L977"> },</span> <span class="line" id="L978"> .{</span> <span class="line" id="L979"> .iov_base = &in_stack_buffer,</span> <span class="line" id="L980"> .iov_len = in_stack_buffer.len,</span> <span class="line" id="L981"> },</span> <span class="line" id="L982"> };</span> <span class="line" id="L983"></span> <span class="line" id="L984"> <span class="tok-comment">// Cleartext capacity of output buffer, in records. Minimum one full record.</span> </span> <span class="line" id="L985"> <span class="tok-kw">const</span> buf_cap = <span class="tok-builtin">@max</span>(cleartext_buf_len / max_ciphertext_len, <span class="tok-number">1</span>);</span> <span class="line" id="L986"> <span class="tok-kw">const</span> wanted_read_len = buf_cap * (max_ciphertext_len + tls.record_header_len);</span> <span class="line" id="L987"> <span class="tok-kw">const</span> ask_len = <span class="tok-builtin">@max</span>(wanted_read_len, cleartext_stack_buffer.len);</span> <span class="line" id="L988"> <span class="tok-kw">const</span> ask_iovecs = limitVecs(&ask_iovecs_buf, ask_len);</span> <span class="line" id="L989"> <span class="tok-kw">const</span> actual_read_len = <span class="tok-kw">try</span> stream.readv(ask_iovecs);</span> <span class="line" id="L990"> <span class="tok-kw">if</span> (actual_read_len == <span class="tok-number">0</span>) {</span> <span class="line" id="L991"> <span class="tok-comment">// This is either a truncation attack, a bug in the server, or an</span> </span> <span class="line" id="L992"> <span class="tok-comment">// intentional omission of the close_notify message due to truncation</span> </span> <span class="line" id="L993"> <span class="tok-comment">// detection handled above the TLS layer.</span> </span> <span class="line" id="L994"> <span class="tok-kw">if</span> (c.allow_truncation_attacks) {</span> <span class="line" id="L995"> c.received_close_notify = <span class="tok-null">true</span>;</span> <span class="line" id="L996"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L997"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsConnectionTruncated;</span> <span class="line" id="L998"> }</span> <span class="line" id="L999"> }</span> <span class="line" id="L1000"></span> <span class="line" id="L1001"> <span class="tok-comment">// There might be more bytes inside `in_stack_buffer` that need to be processed,</span> </span> <span class="line" id="L1002"> <span class="tok-comment">// but at least frag0 will have one complete ciphertext record.</span> </span> <span class="line" id="L1003"> <span class="tok-kw">const</span> frag0_end = <span class="tok-builtin">@min</span>(c.partially_read_buffer.len, c.partial_ciphertext_end + actual_read_len);</span> <span class="line" id="L1004"> <span class="tok-kw">const</span> frag0 = c.partially_read_buffer[c.partial_ciphertext_idx..frag0_end];</span> <span class="line" id="L1005"> <span class="tok-kw">var</span> frag1 = in_stack_buffer[<span class="tok-number">0</span>..actual_read_len -\| first_iov.len];</span> <span class="line" id="L1006"> <span class="tok-comment">// We need to decipher frag0 and frag1 but there may be a ciphertext record</span> </span> <span class="line" id="L1007"> <span class="tok-comment">// straddling the boundary. We can handle this with two memcpy() calls to</span> </span> <span class="line" id="L1008"> <span class="tok-comment">// assemble the straddling record in between handling the two sides.</span> </span> <span class="line" id="L1009"> <span class="tok-kw">var</span> frag = frag0;</span> <span class="line" id="L1010"> <span class="tok-kw">var</span> in: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L1011"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L1012"> <span class="tok-kw">if</span> (in == frag.len) {</span> <span class="line" id="L1013"> <span class="tok-comment">// Perfect split.</span> </span> <span class="line" id="L1014"> <span class="tok-kw">if</span> (frag.ptr == frag1.ptr) {</span> <span class="line" id="L1015"> c.partial_ciphertext_end = c.partial_ciphertext_idx;</span> <span class="line" id="L1016"> <span class="tok-kw">return</span> vp.total;</span> <span class="line" id="L1017"> }</span> <span class="line" id="L1018"> frag = frag1;</span> <span class="line" id="L1019"> in = <span class="tok-number">0</span>;</span> <span class="line" id="L1020"> <span class="tok-kw">continue</span>;</span> <span class="line" id="L1021"> }</span> <span class="line" id="L1022"></span> <span class="line" id="L1023"> <span class="tok-kw">if</span> (in + tls.record_header_len > frag.len) {</span> <span class="line" id="L1024"> <span class="tok-kw">if</span> (frag.ptr == frag1.ptr)</span> <span class="line" id="L1025"> <span class="tok-kw">return</span> finishRead(c, frag, in, vp.total);</span> <span class="line" id="L1026"></span> <span class="line" id="L1027"> <span class="tok-kw">const</span> first = frag[in..];</span> <span class="line" id="L1028"></span> <span class="line" id="L1029"> <span class="tok-kw">if</span> (frag1.len < tls.record_header_len)</span> <span class="line" id="L1030"> <span class="tok-kw">return</span> finishRead2(c, first, frag1, vp.total);</span> <span class="line" id="L1031"></span> <span class="line" id="L1032"> <span class="tok-comment">// A record straddles the two fragments. Copy into the now-empty first fragment.</span> </span> <span class="line" id="L1033"> <span class="tok-kw">const</span> record_len_byte_0: <span class="tok-type">u16</span> = straddleByte(frag, frag1, in + <span class="tok-number">3</span>);</span> <span class="line" id="L1034"> <span class="tok-kw">const</span> record_len_byte_1: <span class="tok-type">u16</span> = straddleByte(frag, frag1, in + <span class="tok-number">4</span>);</span> <span class="line" id="L1035"> <span class="tok-kw">const</span> record_len = (record_len_byte_0 << <span class="tok-number">8</span>) \| record_len_byte_1;</span> <span class="line" id="L1036"> <span class="tok-kw">if</span> (record_len > max_ciphertext_len) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsRecordOverflow;</span> <span class="line" id="L1037"></span> <span class="line" id="L1038"> <span class="tok-kw">const</span> full_record_len = record_len + tls.record_header_len;</span> <span class="line" id="L1039"> <span class="tok-kw">const</span> second_len = full_record_len - first.len;</span> <span class="line" id="L1040"> <span class="tok-kw">if</span> (frag1.len < second_len)</span> <span class="line" id="L1041"> <span class="tok-kw">return</span> finishRead2(c, first, frag1, vp.total);</span> <span class="line" id="L1042"></span> <span class="line" id="L1043"> limitedOverlapCopy(frag, in);</span> <span class="line" id="L1044"> <span class="tok-builtin">@memcpy</span>(frag[first.len..][<span class="tok-number">0</span>..second_len], frag1[<span class="tok-number">0</span>..second_len]);</span> <span class="line" id="L1045"> frag = frag[<span class="tok-number">0</span>..full_record_len];</span> <span class="line" id="L1046"> frag1 = frag1[second_len..];</span> <span class="line" id="L1047"> in = <span class="tok-number">0</span>;</span> <span class="line" id="L1048"> <span class="tok-kw">continue</span>;</span> <span class="line" id="L1049"> }</span> <span class="line" id="L1050"> <span class="tok-kw">const</span> ct: tls.ContentType = <span class="tok-builtin">@enumFromInt</span>(frag[in]);</span> <span class="line" id="L1051"> in += <span class="tok-number">1</span>;</span> <span class="line" id="L1052"> <span class="tok-kw">const</span> legacy_version = mem.readIntBig(<span class="tok-type">u16</span>, frag[in..][<span class="tok-number">0</span>..<span class="tok-number">2</span>]);</span> <span class="line" id="L1053"> in += <span class="tok-number">2</span>;</span> <span class="line" id="L1054"> _ = legacy_version;</span> <span class="line" id="L1055"> <span class="tok-kw">const</span> record_len = mem.readIntBig(<span class="tok-type">u16</span>, frag[in..][<span class="tok-number">0</span>..<span class="tok-number">2</span>]);</span> <span class="line" id="L1056"> <span class="tok-kw">if</span> (record_len > max_ciphertext_len) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsRecordOverflow;</span> <span class="line" id="L1057"> in += <span class="tok-number">2</span>;</span> <span class="line" id="L1058"> <span class="tok-kw">const</span> end = in + record_len;</span> <span class="line" id="L1059"> <span class="tok-kw">if</span> (end > frag.len) {</span> <span class="line" id="L1060"> <span class="tok-comment">// We need the record header on the next iteration of the loop.</span> </span> <span class="line" id="L1061"> in -= tls.record_header_len;</span> <span class="line" id="L1062"></span> <span class="line" id="L1063"> <span class="tok-kw">if</span> (frag.ptr == frag1.ptr)</span> <span class="line" id="L1064"> <span class="tok-kw">return</span> finishRead(c, frag, in, vp.total);</span> <span class="line" id="L1065"></span> <span class="line" id="L1066"> <span class="tok-comment">// A record straddles the two fragments. Copy into the now-empty first fragment.</span> </span> <span class="line" id="L1067"> <span class="tok-kw">const</span> first = frag[in..];</span> <span class="line" id="L1068"> <span class="tok-kw">const</span> full_record_len = record_len + tls.record_header_len;</span> <span class="line" id="L1069"> <span class="tok-kw">const</span> second_len = full_record_len - first.len;</span> <span class="line" id="L1070"> <span class="tok-kw">if</span> (frag1.len < second_len)</span> <span class="line" id="L1071"> <span class="tok-kw">return</span> finishRead2(c, first, frag1, vp.total);</span> <span class="line" id="L1072"></span> <span class="line" id="L1073"> limitedOverlapCopy(frag, in);</span> <span class="line" id="L1074"> <span class="tok-builtin">@memcpy</span>(frag[first.len..][<span class="tok-number">0</span>..second_len], frag1[<span class="tok-number">0</span>..second_len]);</span> <span class="line" id="L1075"> frag = frag[<span class="tok-number">0</span>..full_record_len];</span> <span class="line" id="L1076"> frag1 = frag1[second_len..];</span> <span class="line" id="L1077"> in = <span class="tok-number">0</span>;</span> <span class="line" id="L1078"> <span class="tok-kw">continue</span>;</span> <span class="line" id="L1079"> }</span> <span class="line" id="L1080"> <span class="tok-kw">switch</span> (ct) {</span> <span class="line" id="L1081"> .alert => {</span> <span class="line" id="L1082"> <span class="tok-kw">if</span> (in + <span class="tok-number">2</span> > frag.len) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsDecodeError;</span> <span class="line" id="L1083"> <span class="tok-kw">const</span> level: tls.AlertLevel = <span class="tok-builtin">@enumFromInt</span>(frag[in]);</span> <span class="line" id="L1084"> <span class="tok-kw">const</span> desc: tls.AlertDescription = <span class="tok-builtin">@enumFromInt</span>(frag[in + <span class="tok-number">1</span>]);</span> <span class="line" id="L1085"> _ = level;</span> <span class="line" id="L1086"></span> <span class="line" id="L1087"> <span class="tok-kw">try</span> desc.toError();</span> <span class="line" id="L1088"> <span class="tok-comment">// TODO: handle server-side closures</span> </span> <span class="line" id="L1089"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsUnexpectedMessage;</span> <span class="line" id="L1090"> },</span> <span class="line" id="L1091"> .application_data => {</span> <span class="line" id="L1092"> <span class="tok-kw">const</span> cleartext = <span class="tok-kw">switch</span> (c.application_cipher) {</span> <span class="line" id="L1093"> <span class="tok-kw">inline</span> <span class="tok-kw">else</span> => \|p\| c: {</span> <span class="line" id="L1094"> <span class="tok-kw">const</span> P = <span class="tok-builtin">@TypeOf</span>(p.);</span> <span class="line" id="L1095"> <span class="tok-kw">const</span> V = <span class="tok-builtin">@Vector</span>(P.AEAD.nonce_length, <span class="tok-type">u8</span>);</span> <span class="line" id="L1096"> <span class="tok-kw">const</span> ad = frag[in - <span class="tok-number">5</span> ..][<span class="tok-number">0</span>..<span class="tok-number">5</span>];</span> <span class="line" id="L1097"> <span class="tok-kw">const</span> ciphertext_len = record_len - P.AEAD.tag_length;</span> <span class="line" id="L1098"> <span class="tok-kw">const</span> ciphertext = frag[in..][<span class="tok-number">0</span>..ciphertext_len];</span> <span class="line" id="L1099"> in += ciphertext_len;</span> <span class="line" id="L1100"> <span class="tok-kw">const</span> auth_tag = frag[in..][<span class="tok-number">0</span>..P.AEAD.tag_length].;</span> <span class="line" id="L1101"> <span class="tok-kw">const</span> pad = [<span class="tok-number">1</span>]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} * (P.AEAD.nonce_length - <span class="tok-number">8</span>);</span> <span class="line" id="L1102"> <span class="tok-kw">const</span> operand: V = pad ++ <span class="tok-builtin">@as</span>([<span class="tok-number">8</span>]<span class="tok-type">u8</span>, <span class="tok-builtin">@bitCast</span>(big(c.read_seq)));</span> <span class="line" id="L1103"> <span class="tok-kw">const</span> nonce: [P.AEAD.nonce_length]<span class="tok-type">u8</span> = <span class="tok-builtin">@as</span>(V, p.server_iv) ^ operand;</span> <span class="line" id="L1104"> <span class="tok-kw">const</span> out_buf = vp.peek();</span> <span class="line" id="L1105"> <span class="tok-kw">const</span> cleartext_buf = <span class="tok-kw">if</span> (ciphertext.len <= out_buf.len)</span> <span class="line" id="L1106"> out_buf</span> <span class="line" id="L1107"> <span class="tok-kw">else</span></span> <span class="line" id="L1108"> &cleartext_stack_buffer;</span> <span class="line" id="L1109"> <span class="tok-kw">const</span> cleartext = cleartext_buf[<span class="tok-number">0</span>..ciphertext.len];</span> <span class="line" id="L1110"> P.AEAD.decrypt(cleartext, ciphertext, auth_tag, ad, nonce, p.server_key) <span class="tok-kw">catch</span></span> <span class="line" id="L1111"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsBadRecordMac;</span> <span class="line" id="L1112"> <span class="tok-kw">break</span> :c cleartext;</span> <span class="line" id="L1113"> },</span> <span class="line" id="L1114"> };</span> <span class="line" id="L1115"></span> <span class="line" id="L1116"> c.read_seq = <span class="tok-kw">try</span> std.math.add(<span class="tok-type">u64</span>, c.read_seq, <span class="tok-number">1</span>);</span> <span class="line" id="L1117"></span> <span class="line" id="L1118"> <span class="tok-kw">const</span> inner_ct: tls.ContentType = <span class="tok-builtin">@enumFromInt</span>(cleartext[cleartext.len - <span class="tok-number">1</span>]);</span> <span class="line" id="L1119"> <span class="tok-kw">switch</span> (inner_ct) {</span> <span class="line" id="L1120"> .alert => {</span> <span class="line" id="L1121"> <span class="tok-kw">const</span> level: tls.AlertLevel = <span class="tok-builtin">@enumFromInt</span>(cleartext[<span class="tok-number">0</span>]);</span> <span class="line" id="L1122"> <span class="tok-kw">const</span> desc: tls.AlertDescription = <span class="tok-builtin">@enumFromInt</span>(cleartext[<span class="tok-number">1</span>]);</span> <span class="line" id="L1123"> <span class="tok-kw">if</span> (desc == .close_notify) {</span> <span class="line" id="L1124"> c.received_close_notify = <span class="tok-null">true</span>;</span> <span class="line" id="L1125"> c.partial_ciphertext_end = c.partial_ciphertext_idx;</span> <span class="line" id="L1126"> <span class="tok-kw">return</span> vp.total;</span> <span class="line" id="L1127"> }</span> <span class="line" id="L1128"> _ = level;</span> <span class="line" id="L1129"></span> <span class="line" id="L1130"> <span class="tok-kw">try</span> desc.toError();</span> <span class="line" id="L1131"> <span class="tok-comment">// TODO: handle server-side closures</span> </span> <span class="line" id="L1132"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsUnexpectedMessage;</span> <span class="line" id="L1133"> },</span> <span class="line" id="L1134"> .handshake => {</span> <span class="line" id="L1135"> <span class="tok-kw">var</span> ct_i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L1136"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L1137"> <span class="tok-kw">const</span> handshake_type: tls.HandshakeType = <span class="tok-builtin">@enumFromInt</span>(cleartext[ct_i]);</span> <span class="line" id="L1138"> ct_i += <span class="tok-number">1</span>;</span> <span class="line" id="L1139"> <span class="tok-kw">const</span> handshake_len = mem.readIntBig(<span class="tok-type">u24</span>, cleartext[ct_i..][<span class="tok-number">0</span>..<span class="tok-number">3</span>]);</span> <span class="line" id="L1140"> ct_i += <span class="tok-number">3</span>;</span> <span class="line" id="L1141"> <span class="tok-kw">const</span> next_handshake_i = ct_i + handshake_len;</span> <span class="line" id="L1142"> <span class="tok-kw">if</span> (next_handshake_i > cleartext.len - <span class="tok-number">1</span>)</span> <span class="line" id="L1143"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsBadLength;</span> <span class="line" id="L1144"> <span class="tok-kw">const</span> handshake = cleartext[ct_i..next_handshake_i];</span> <span class="line" id="L1145"> <span class="tok-kw">switch</span> (handshake_type) {</span> <span class="line" id="L1146"> .new_session_ticket => {</span> <span class="line" id="L1147"> <span class="tok-comment">// This client implementation ignores new session tickets.</span> </span> <span class="line" id="L1148"> },</span> <span class="line" id="L1149"> .key_update => {</span> <span class="line" id="L1150"> <span class="tok-kw">switch</span> (c.application_cipher) {</span> <span class="line" id="L1151"> <span class="tok-kw">inline</span> <span class="tok-kw">else</span> => \|p\| {</span> <span class="line" id="L1152"> <span class="tok-kw">const</span> P = <span class="tok-builtin">@TypeOf</span>(p.);</span> <span class="line" id="L1153"> <span class="tok-kw">const</span> server_secret = hkdfExpandLabel(P.Hkdf, p.server_secret, <span class="tok-str">"traffic upd"</span>, <span class="tok-str">""</span>, P.Hash.digest_length);</span> <span class="line" id="L1154"> p.server_secret = server_secret;</span> <span class="line" id="L1155"> p.server_key = hkdfExpandLabel(P.Hkdf, server_secret, <span class="tok-str">"key"</span>, <span class="tok-str">""</span>, P.AEAD.key_length);</span> <span class="line" id="L1156"> p.server_iv = hkdfExpandLabel(P.Hkdf, server_secret, <span class="tok-str">"iv"</span>, <span class="tok-str">""</span>, P.AEAD.nonce_length);</span> <span class="line" id="L1157"> },</span> <span class="line" id="L1158"> }</span> <span class="line" id="L1159"> c.read_seq = <span class="tok-number">0</span>;</span> <span class="line" id="L1160"></span> <span class="line" id="L1161"> <span class="tok-kw">switch</span> (<span class="tok-builtin">@as</span>(tls.KeyUpdateRequest, <span class="tok-builtin">@enumFromInt</span>(handshake[<span class="tok-number">0</span>]))) {</span> <span class="line" id="L1162"> .update_requested => {</span> <span class="line" id="L1163"> <span class="tok-kw">switch</span> (c.application_cipher) {</span> <span class="line" id="L1164"> <span class="tok-kw">inline</span> <span class="tok-kw">else</span> => \|p\| {</span> <span class="line" id="L1165"> <span class="tok-kw">const</span> P = <span class="tok-builtin">@TypeOf</span>(p.);</span> <span class="line" id="L1166"> <span class="tok-kw">const</span> client_secret = hkdfExpandLabel(P.Hkdf, p.client_secret, <span class="tok-str">"traffic upd"</span>, <span class="tok-str">""</span>, P.Hash.digest_length);</span> <span class="line" id="L1167"> p.client_secret = client_secret;</span> <span class="line" id="L1168"> p.client_key = hkdfExpandLabel(P.Hkdf, client_secret, <span class="tok-str">"key"</span>, <span class="tok-str">""</span>, P.AEAD.key_length);</span> <span class="line" id="L1169"> p.client_iv = hkdfExpandLabel(P.Hkdf, client_secret, <span class="tok-str">"iv"</span>, <span class="tok-str">""</span>, P.AEAD.nonce_length);</span> <span class="line" id="L1170"> },</span> <span class="line" id="L1171"> }</span> <span class="line" id="L1172"> c.write_seq = <span class="tok-number">0</span>;</span> <span class="line" id="L1173"> },</span> <span class="line" id="L1174"> .update_not_requested => {},</span> <span class="line" id="L1175"> _ => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsIllegalParameter,</span> <span class="line" id="L1176"> }</span> <span class="line" id="L1177"> },</span> <span class="line" id="L1178"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L1179"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsUnexpectedMessage;</span> <span class="line" id="L1180"> },</span> <span class="line" id="L1181"> }</span> <span class="line" id="L1182"> ct_i = next_handshake_i;</span> <span class="line" id="L1183"> <span class="tok-kw">if</span> (ct_i >= cleartext.len - <span class="tok-number">1</span>) <span class="tok-kw">break</span>;</span> <span class="line" id="L1184"> }</span> <span class="line" id="L1185"> },</span> <span class="line" id="L1186"> .application_data => {</span> <span class="line" id="L1187"> <span class="tok-comment">// Determine whether the output buffer or a stack</span> </span> <span class="line" id="L1188"> <span class="tok-comment">// buffer was used for storing the cleartext.</span> </span> <span class="line" id="L1189"> <span class="tok-kw">if</span> (cleartext.ptr == &cleartext_stack_buffer) {</span> <span class="line" id="L1190"> <span class="tok-comment">// Stack buffer was used, so we must copy to the output buffer.</span> </span> <span class="line" id="L1191"> <span class="tok-kw">const</span> msg = cleartext[<span class="tok-number">0</span> .. cleartext.len - <span class="tok-number">1</span>];</span> <span class="line" id="L1192"> <span class="tok-kw">if</span> (c.partial_ciphertext_idx > c.partial_cleartext_idx) {</span> <span class="line" id="L1193"> <span class="tok-comment">// We have already run out of room in iovecs. Continue</span> </span> <span class="line" id="L1194"> <span class="tok-comment">// appending to `partially_read_buffer`.</span> </span> <span class="line" id="L1195"> <span class="tok-builtin">@memcpy</span>(</span> <span class="line" id="L1196"> c.partially_read_buffer[c.partial_ciphertext_idx..][<span class="tok-number">0</span>..msg.len],</span> <span class="line" id="L1197"> msg,</span> <span class="line" id="L1198"> );</span> <span class="line" id="L1199"> c.partial_ciphertext_idx = <span class="tok-builtin">@intCast</span>(c.partial_ciphertext_idx + msg.len);</span> <span class="line" id="L1200"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L1201"> <span class="tok-kw">const</span> amt = vp.put(msg);</span> <span class="line" id="L1202"> <span class="tok-kw">if</span> (amt < msg.len) {</span> <span class="line" id="L1203"> <span class="tok-kw">const</span> rest = msg[amt..];</span> <span class="line" id="L1204"> c.partial_cleartext_idx = <span class="tok-number">0</span>;</span> <span class="line" id="L1205"> c.partial_ciphertext_idx = <span class="tok-builtin">@intCast</span>(rest.len);</span> <span class="line" id="L1206"> <span class="tok-builtin">@memcpy</span>(c.partially_read_buffer[<span class="tok-number">0</span>..rest.len], rest);</span> <span class="line" id="L1207"> }</span> <span class="line" id="L1208"> }</span> <span class="line" id="L1209"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L1210"> <span class="tok-comment">// Output buffer was used directly which means no</span> </span> <span class="line" id="L1211"> <span class="tok-comment">// memory copying needs to occur, and we can move</span> </span> <span class="line" id="L1212"> <span class="tok-comment">// on to the next ciphertext record.</span> </span> <span class="line" id="L1213"> vp.next(cleartext.len - <span class="tok-number">1</span>);</span> <span class="line" id="L1214"> }</span> <span class="line" id="L1215"> },</span> <span class="line" id="L1216"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L1217"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsUnexpectedMessage;</span> <span class="line" id="L1218"> },</span> <span class="line" id="L1219"> }</span> <span class="line" id="L1220"> },</span> <span class="line" id="L1221"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L1222"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.TlsUnexpectedMessage;</span> <span class="line" id="L1223"> },</span> <span class="line" id="L1224"> }</span> <span class="line" id="L1225"> in = end;</span> <span class="line" id="L1226"> }</span> <span class="line" id="L1227">}</span> <span class="line" id="L1228"></span> <span class="line" id="L1229"><span class="tok-kw">fn</span> <span class="tok-fn">finishRead</span>(c: Client, frag: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, in: <span class="tok-type">usize</span>, out: <span class="tok-type">usize</span>) <span class="tok-type">usize</span> {</span> <span class="line" id="L1230"> <span class="tok-kw">const</span> saved_buf = frag[in..];</span> <span class="line" id="L1231"> <span class="tok-kw">if</span> (c.partial_ciphertext_idx > c.partial_cleartext_idx) {</span> <span class="line" id="L1232"> <span class="tok-comment">// There is cleartext at the beginning already which we need to preserve.</span> </span> <span class="line" id="L1233"> c.partial_ciphertext_end = <span class="tok-builtin">@intCast</span>(c.partial_ciphertext_idx + saved_buf.len);</span> <span class="line" id="L1234"> <span class="tok-builtin">@memcpy</span>(c.partially_read_buffer[c.partial_ciphertext_idx..][<span class="tok-number">0</span>..saved_buf.len], saved_buf);</span> <span class="line" id="L1235"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L1236"> c.partial_cleartext_idx = <span class="tok-number">0</span>;</span> <span class="line" id="L1237"> c.partial_ciphertext_idx = <span class="tok-number">0</span>;</span> <span class="line" id="L1238"> c.partial_ciphertext_end = <span class="tok-builtin">@intCast</span>(saved_buf.len);</span> <span class="line" id="L1239"> <span class="tok-builtin">@memcpy</span>(c.partially_read_buffer[<span class="tok-number">0</span>..saved_buf.len], saved_buf);</span> <span class="line" id="L1240"> }</span> <span class="line" id="L1241"> <span class="tok-kw">return</span> out;</span> <span class="line" id="L1242">}</span> <span class="line" id="L1243"></span> <span class="line" id="L1244"><span class="tok-comment">/// Note that `first` usually overlaps with `c.partially_read_buffer`.</span></span> <span class="line" id="L1245"><span class="tok-kw">fn</span> <span class="tok-fn">finishRead2</span>(c: Client, first: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, frag1: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, out: <span class="tok-type">usize</span>) <span class="tok-type">usize</span> {</span> <span class="line" id="L1246"> <span class="tok-kw">if</span> (c.partial_ciphertext_idx > c.partial_cleartext_idx) {</span> <span class="line" id="L1247"> <span class="tok-comment">// There is cleartext at the beginning already which we need to preserve.</span> </span> <span class="line" id="L1248"> c.partial_ciphertext_end = <span class="tok-builtin">@intCast</span>(c.partial_ciphertext_idx + first.len + frag1.len);</span> <span class="line" id="L1249"> <span class="tok-comment">// TODO: eliminate this call to copyForwards</span> </span> <span class="line" id="L1250"> std.mem.copyForwards(<span class="tok-type">u8</span>, c.partially_read_buffer[c.partial_ciphertext_idx..][<span class="tok-number">0</span>..first.len], first);</span> <span class="line" id="L1251"> <span class="tok-builtin">@memcpy</span>(c.partially_read_buffer[c.partial_ciphertext_idx + first.len ..][<span class="tok-number">0</span>..frag1.len], frag1);</span> <span class="line" id="L1252"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L1253"> c.partial_cleartext_idx = <span class="tok-number">0</span>;</span> <span class="line" id="L1254"> c.partial_ciphertext_idx = <span class="tok-number">0</span>;</span> <span class="line" id="L1255"> c.partial_ciphertext_end = <span class="tok-builtin">@intCast</span>(first.len + frag1.len);</span> <span class="line" id="L1256"> <span class="tok-comment">// TODO: eliminate this call to copyForwards</span> </span> <span class="line" id="L1257"> std.mem.copyForwards(<span class="tok-type">u8</span>, c.partially_read_buffer[<span class="tok-number">0</span>..first.len], first);</span> <span class="line" id="L1258"> <span class="tok-builtin">@memcpy</span>(c.partially_read_buffer[first.len..][<span class="tok-number">0</span>..frag1.len], frag1);</span> <span class="line" id="L1259"> }</span> <span class="line" id="L1260"> <span class="tok-kw">return</span> out;</span> <span class="line" id="L1261">}</span> <span class="line" id="L1262"></span> <span class="line" id="L1263"><span class="tok-kw">fn</span> <span class="tok-fn">limitedOverlapCopy</span>(frag: []<span class="tok-type">u8</span>, in: <span class="tok-type">usize</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L1264"> <span class="tok-kw">const</span> first = frag[in..];</span> <span class="line" id="L1265"> <span class="tok-kw">if</span> (first.len <= in) {</span> <span class="line" id="L1266"> <span class="tok-comment">// A single, non-overlapping memcpy suffices.</span> </span> <span class="line" id="L1267"> <span class="tok-builtin">@memcpy</span>(frag[<span class="tok-number">0</span>..first.len], first);</span> <span class="line" id="L1268"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L1269"> <span class="tok-comment">// One memcpy call would overlap, so just do this instead.</span> </span> <span class="line" id="L1270"> std.mem.copyForwards(<span class="tok-type">u8</span>, frag, first);</span> <span class="line" id="L1271"> }</span> <span class="line" id="L1272">}</span> <span class="line" id="L1273"></span> <span class="line" id="L1274"><span class="tok-kw">fn</span> <span class="tok-fn">straddleByte</span>(s1: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, s2: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, index: <span class="tok-type">usize</span>) <span class="tok-type">u8</span> {</span> <span class="line" id="L1275"> <span class="tok-kw">if</span> (index < s1.len) {</span> <span class="line" id="L1276"> <span class="tok-kw">return</span> s1[index];</span> <span class="line" id="L1277"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L1278"> <span class="tok-kw">return</span> s2[index - s1.len];</span> <span class="line" id="L1279"> }</span> <span class="line" id="L1280">}</span> <span class="line" id="L1281"></span> <span class="line" id="L1282"><span class="tok-kw">const</span> builtin = <span class="tok-builtin">@import</span>(<span class="tok-str">"builtin"</span>);</span> <span class="line" id="L1283"><span class="tok-kw">const</span> native_endian = builtin.cpu.arch.endian();</span> <span class="line" id="L1284"></span> <span class="line" id="L1285"><span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">big</span>(x: <span class="tok-kw">anytype</span>) <span class="tok-builtin">@TypeOf</span>(x) {</span> <span class="line" id="L1286"> <span class="tok-kw">return</span> <span class="tok-kw">switch</span> (native_endian) {</span> <span class="line" id="L1287"> .Big => x,</span> <span class="line" id="L1288"> .Little => <span class="tok-builtin">@byteSwap</span>(x),</span> <span class="line" id="L1289"> };</span> <span class="line" id="L1290">}</span> <span class="line" id="L1291"></span> <span class="line" id="L1292"><span class="tok-kw">fn</span> <span class="tok-fn">SchemeEcdsa</span>(<span class="tok-kw">comptime</span> scheme: tls.SignatureScheme) <span class="tok-type">type</span> {</span> <span class="line" id="L1293"> <span class="tok-kw">return</span> <span class="tok-kw">switch</span> (scheme) {</span> <span class="line" id="L1294"> .ecdsa_secp256r1_sha256 => crypto.sign.ecdsa.EcdsaP256Sha256,</span> <span class="line" id="L1295"> .ecdsa_secp384r1_sha384 => crypto.sign.ecdsa.EcdsaP384Sha384,</span> <span class="line" id="L1296"> .ecdsa_secp521r1_sha512 => crypto.sign.ecdsa.EcdsaP512Sha512,</span> <span class="line" id="L1297"> <span class="tok-kw">else</span> => <span class="tok-builtin">@compileError</span>(<span class="tok-str">"bad scheme"</span>),</span> <span class="line" id="L1298"> };</span> <span class="line" id="L1299">}</span> <span class="line" id="L1300"></span> <span class="line" id="L1301"><span class="tok-kw">fn</span> <span class="tok-fn">SchemeHash</span>(<span class="tok-kw">comptime</span> scheme: tls.SignatureScheme) <span class="tok-type">type</span> {</span> <span class="line" id="L1302"> <span class="tok-kw">return</span> <span class="tok-kw">switch</span> (scheme) {</span> <span class="line" id="L1303"> .rsa_pss_rsae_sha256 => crypto.hash.sha2.Sha256,</span> <span class="line" id="L1304"> .rsa_pss_rsae_sha384 => crypto.hash.sha2.Sha384,</span> <span class="line" id="L1305"> .rsa_pss_rsae_sha512 => crypto.hash.sha2.Sha512,</span> <span class="line" id="L1306"> <span class="tok-kw">else</span> => <span class="tok-builtin">@compileError</span>(<span class="tok-str">"bad scheme"</span>),</span> <span class="line" id="L1307"> };</span> <span class="line" id="L1308">}</span> <span class="line" id="L1309"></span> <span class="line" id="L1310"><span class="tok-comment">/// Abstraction for sending multiple byte buffers to a slice of iovecs.</span></span> <span class="line" id="L1311"><span class="tok-kw">const</span> VecPut = <span class="tok-kw">struct</span> {</span> <span class="line" id="L1312"> iovecs: []<span class="tok-kw">const</span> std.os.iovec,</span> <span class="line" id="L1313"> idx: <span class="tok-type">usize</span> = <span class="tok-number">0</span>,</span> <span class="line" id="L1314"> off: <span class="tok-type">usize</span> = <span class="tok-number">0</span>,</span> <span class="line" id="L1315"> total: <span class="tok-type">usize</span> = <span class="tok-number">0</span>,</span> <span class="line" id="L1316"></span> <span class="line" id="L1317"> <span class="tok-comment">/// Returns the amount actually put which is always equal to bytes.len</span></span> <span class="line" id="L1318"> <span class="tok-comment">/// unless the vectors ran out of space.</span></span> <span class="line" id="L1319"> <span class="tok-kw">fn</span> <span class="tok-fn">put</span>(vp: VecPut, bytes: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">usize</span> {</span> <span class="line" id="L1320"> <span class="tok-kw">if</span> (vp.idx >= vp.iovecs.len) <span class="tok-kw">return</span> <span class="tok-number">0</span>;</span> <span class="line" id="L1321"> <span class="tok-kw">var</span> bytes_i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L1322"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L1323"> <span class="tok-kw">const</span> v = vp.iovecs[vp.idx];</span> <span class="line" id="L1324"> <span class="tok-kw">const</span> dest = v.iov_base[vp.off..v.iov_len];</span> <span class="line" id="L1325"> <span class="tok-kw">const</span> src = bytes[bytes_i..][<span class="tok-number">0</span>..<span class="tok-builtin">@min</span>(dest.len, bytes.len - bytes_i)];</span> <span class="line" id="L1326"> <span class="tok-builtin">@memcpy</span>(dest[<span class="tok-number">0</span>..src.len], src);</span> <span class="line" id="L1327"> bytes_i += src.len;</span> <span class="line" id="L1328"> vp.off += src.len;</span> <span class="line" id="L1329"> <span class="tok-kw">if</span> (vp.off >= v.iov_len) {</span> <span class="line" id="L1330"> vp.off = <span class="tok-number">0</span>;</span> <span class="line" id="L1331"> vp.idx += <span class="tok-number">1</span>;</span> <span class="line" id="L1332"> <span class="tok-kw">if</span> (vp.idx >= vp.iovecs.len) {</span> <span class="line" id="L1333"> vp.total += bytes_i;</span> <span class="line" id="L1334"> <span class="tok-kw">return</span> bytes_i;</span> <span class="line" id="L1335"> }</span> <span class="line" id="L1336"> }</span> <span class="line" id="L1337"> <span class="tok-kw">if</span> (bytes_i >= bytes.len) {</span> <span class="line" id="L1338"> vp.total += bytes_i;</span> <span class="line" id="L1339"> <span class="tok-kw">return</span> bytes_i;</span> <span class="line" id="L1340"> }</span> <span class="line" id="L1341"> }</span> <span class="line" id="L1342"> }</span> <span class="line" id="L1343"></span> <span class="line" id="L1344"> <span class="tok-comment">/// Returns the next buffer that consecutive bytes can go into.</span></span> <span class="line" id="L1345"> <span class="tok-kw">fn</span> <span class="tok-fn">peek</span>(vp: VecPut) []<span class="tok-type">u8</span> {</span> <span class="line" id="L1346"> <span class="tok-kw">if</span> (vp.idx >= vp.iovecs.len) <span class="tok-kw">return</span> &.{};</span> <span class="line" id="L1347"> <span class="tok-kw">const</span> v = vp.iovecs[vp.idx];</span> <span class="line" id="L1348"> <span class="tok-kw">return</span> v.iov_base[vp.off..v.iov_len];</span> <span class="line" id="L1349"> }</span> <span class="line" id="L1350"></span> <span class="line" id="L1351"> <span class="tok-comment">// After writing to the result of peek(), one can call next() to</span> </span> <span class="line" id="L1352"> <span class="tok-comment">// advance the cursor.</span> </span> <span class="line" id="L1353"> <span class="tok-kw">fn</span> <span class="tok-fn">next</span>(vp: VecPut, len: <span class="tok-type">usize</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L1354"> vp.total += len;</span> <span class="line" id="L1355"> vp.off += len;</span> <span class="line" id="L1356"> <span class="tok-kw">if</span> (vp.off >= vp.iovecs[vp.idx].iov_len) {</span> <span class="line" id="L1357"> vp.off = <span class="tok-number">0</span>;</span> <span class="line" id="L1358"> vp.idx += <span class="tok-number">1</span>;</span> <span class="line" id="L1359"> }</span> <span class="line" id="L1360"> }</span> <span class="line" id="L1361"></span> <span class="line" id="L1362"> <span class="tok-kw">fn</span> <span class="tok-fn">freeSize</span>(vp: VecPut) <span class="tok-type">usize</span> {</span> <span class="line" id="L1363"> <span class="tok-kw">if</span> (vp.idx >= vp.iovecs.len) <span class="tok-kw">return</span> <span class="tok-number">0</span>;</span> <span class="line" id="L1364"> <span class="tok-kw">var</span> total: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L1365"> total += vp.iovecs[vp.idx].iov_len - vp.off;</span> <span class="line" id="L1366"> <span class="tok-kw">if</span> (vp.idx + <span class="tok-number">1</span> >= vp.iovecs.len) <span class="tok-kw">return</span> total;</span> <span class="line" id="L1367"> <span class="tok-kw">for</span> (vp.iovecs[vp.idx + <span class="tok-number">1</span> ..]) \|v\| total += v.iov_len;</span> <span class="line" id="L1368"> <span class="tok-kw">return</span> total;</span> <span class="line" id="L1369"> }</span> <span class="line" id="L1370">};</span> <span class="line" id="L1371"></span> <span class="line" id="L1372"><span class="tok-comment">/// Limit iovecs to a specific byte size.</span></span> <span class="line" id="L1373"><span class="tok-kw">fn</span> <span class="tok-fn">limitVecs</span>(iovecs: []std.os.iovec, len: <span class="tok-type">usize</span>) []std.os.iovec {</span> <span class="line" id="L1374"> <span class="tok-kw">var</span> bytes_left: <span class="tok-type">usize</span> = len;</span> <span class="line" id="L1375"> <span class="tok-kw">for</span> (iovecs, <span class="tok-number">0</span>..) \|*iovec, vec_i\| {</span> <span class="line" id="L1376"> <span class="tok-kw">if</span> (bytes_left <= iovec.iov_len) {</span> <span class="line" id="L1377"> iovec.iov_len = bytes_left;</span> <span class="line" id="L1378"> <span class="tok-kw">return</span> iovecs[<span class="tok-number">0</span> .. vec_i + <span class="tok-number">1</span>];</span> <span class="line" id="L1379"> }</span> <span class="line" id="L1380"> bytes_left -= iovec.iov_len;</span> <span class="line" id="L1381"> }</span> <span class="line" id="L1382"> <span class="tok-kw">return</span> iovecs;</span> <span class="line" id="L1383">}</span> <span class="line" id="L1384"></span> <span class="line" id="L1385"><span class="tok-comment">/// The priority order here is chosen based on what crypto algorithms Zig has</span></span> <span class="line" id="L1386"><span class="tok-comment">/// available in the standard library as well as what is faster. Following are</span></span> <span class="line" id="L1387"><span class="tok-comment">/// a few data points on the relative performance of these algorithms.</span></span> <span class="line" id="L1388"><span class="tok-comment">///</span></span> <span class="line" id="L1389"><span class="tok-comment">/// Measurement taken with 0.11.0-dev.810+c2f5848fe</span></span> <span class="line" id="L1390"><span class="tok-comment">/// on x86_64-linux Intel(R) Core(TM) i9-9980HK CPU @ 2.40GHz:</span></span> <span class="line" id="L1391"><span class="tok-comment">/// zig run .lib/std/crypto/benchmark.zig -OReleaseFast</span></span> <span class="line" id="L1392"><span class="tok-comment">/// aegis-128l: 15382 MiB/s</span></span> <span class="line" id="L1393"><span class="tok-comment">/// aegis-256: 9553 MiB/s</span></span> <span class="line" id="L1394"><span class="tok-comment">/// aes128-gcm: 3721 MiB/s</span></span> <span class="line" id="L1395"><span class="tok-comment">/// aes256-gcm: 3010 MiB/s</span></span> <span class="line" id="L1396"><span class="tok-comment">/// chacha20Poly1305: 597 MiB/s</span></span> <span class="line" id="L1397"><span class="tok-comment">///</span></span> <span class="line" id="L1398"><span class="tok-comment">/// Measurement taken with 0.11.0-dev.810+c2f5848fe</span></span> <span class="line" id="L1399"><span class="tok-comment">/// on x86_64-linux Intel(R) Core(TM) i9-9980HK CPU @ 2.40GHz:</span></span> <span class="line" id="L1400"><span class="tok-comment">/// zig run .lib/std/crypto/benchmark.zig -OReleaseFast -mcpu=baseline</span></span> <span class="line" id="L1401"><span class="tok-comment">/// aegis-128l: 629 MiB/s</span></span> <span class="line" id="L1402"><span class="tok-comment">/// chacha20Poly1305: 529 MiB/s</span></span> <span class="line" id="L1403"><span class="tok-comment">/// aegis-256: 461 MiB/s</span></span> <span class="line" id="L1404"><span class="tok-comment">/// aes128-gcm: 138 MiB/s</span></span> <span class="line" id="L1405"><span class="tok-comment">/// aes256-gcm: 120 MiB/s</span></span> <span class="line" id="L1406"><span class="tok-kw">const</span> cipher_suites = <span class="tok-kw">if</span> (crypto.core.aes.has_hardware_support)</span> <span class="line" id="L1407"> enum_array(tls.CipherSuite, &.{</span> <span class="line" id="L1408"> .AEGIS_128L_SHA256,</span> <span class="line" id="L1409"> .AEGIS_256_SHA384,</span> <span class="line" id="L1410"> .AES_128_GCM_SHA256,</span> <span class="line" id="L1411"> .AES_256_GCM_SHA384,</span> <span class="line" id="L1412"> .CHACHA20_POLY1305_SHA256,</span> <span class="line" id="L1413"> })</span> <span class="line" id="L1414"><span class="tok-kw">else</span></span> <span class="line" id="L1415"> enum_array(tls.CipherSuite, &.{</span> <span class="line" id="L1416"> .CHACHA20_POLY1305_SHA256,</span> <span class="line" id="L1417"> .AEGIS_128L_SHA256,</span> <span class="line" id="L1418"> .AEGIS_256_SHA384,</span> <span class="line" id="L1419"> .AES_128_GCM_SHA256,</span> <span class="line" id="L1420"> .AES_256_GCM_SHA384,</span> <span class="line" id="L1421"> });</span> <span class="line" id="L1422"></span> <span class="line" id="L1423"><span class="tok-kw">test</span> {</span> <span class="line" id="L1424"> _ = StreamInterface;</span> <span class="line" id="L1425">}</span> <span class="line" id="L1426"></span> </code></pre></body> </html>
repos/yazap/docs/src/std/crypto	repos/yazap/docs/src/std/crypto/pcurves/p256.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/pcurves/p256.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> crypto = std.crypto;</span> <span class="line" id="L3"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L4"><span class="tok-kw">const</span> meta = std.meta;</span> <span class="line" id="L5"></span> <span class="line" id="L6"><span class="tok-kw">const</span> EncodingError = crypto.errors.EncodingError;</span> <span class="line" id="L7"><span class="tok-kw">const</span> IdentityElementError = crypto.errors.IdentityElementError;</span> <span class="line" id="L8"><span class="tok-kw">const</span> NonCanonicalError = crypto.errors.NonCanonicalError;</span> <span class="line" id="L9"><span class="tok-kw">const</span> NotSquareError = crypto.errors.NotSquareError;</span> <span class="line" id="L10"></span> <span class="line" id="L11"><span class="tok-comment">/// Group operations over P256.</span></span> <span class="line" id="L12"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> P256 = <span class="tok-kw">struct</span> {</span> <span class="line" id="L13"> <span class="tok-comment">/// The underlying prime field.</span></span> <span class="line" id="L14"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Fe = <span class="tok-builtin">@import</span>(<span class="tok-str">"p256/field.zig"</span>).Fe;</span> <span class="line" id="L15"> <span class="tok-comment">/// Field arithmetic mod the order of the main subgroup.</span></span> <span class="line" id="L16"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> scalar = <span class="tok-builtin">@import</span>(<span class="tok-str">"p256/scalar.zig"</span>);</span> <span class="line" id="L17"></span> <span class="line" id="L18"> x: Fe,</span> <span class="line" id="L19"> y: Fe,</span> <span class="line" id="L20"> z: Fe = Fe.one,</span> <span class="line" id="L21"></span> <span class="line" id="L22"> is_base: <span class="tok-type">bool</span> = <span class="tok-null">false</span>,</span> <span class="line" id="L23"></span> <span class="line" id="L24"> <span class="tok-comment">/// The P256 base point.</span></span> <span class="line" id="L25"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> basePoint = P256{</span> <span class="line" id="L26"> .x = Fe.fromInt(<span class="tok-number">48439561293906451759052585252797914202762949526041747995844080717082404635286</span>) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L27"> .y = Fe.fromInt(<span class="tok-number">36134250956749795798585127919587881956611106672985015071877198253568414405109</span>) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L28"> .z = Fe.one,</span> <span class="line" id="L29"> .is_base = <span class="tok-null">true</span>,</span> <span class="line" id="L30"> };</span> <span class="line" id="L31"></span> <span class="line" id="L32"> <span class="tok-comment">/// The P256 neutral element.</span></span> <span class="line" id="L33"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> identityElement = P256{ .x = Fe.zero, .y = Fe.one, .z = Fe.zero };</span> <span class="line" id="L34"></span> <span class="line" id="L35"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> B = Fe.fromInt(<span class="tok-number">41058363725152142129326129780047268409114441015993725554835256314039467401291</span>) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L36"></span> <span class="line" id="L37"> <span class="tok-comment">/// Reject the neutral element.</span></span> <span class="line" id="L38"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">rejectIdentity</span>(p: P256) IdentityElementError!<span class="tok-type">void</span> {</span> <span class="line" id="L39"> <span class="tok-kw">const</span> affine_0 = <span class="tok-builtin">@intFromBool</span>(p.x.equivalent(AffineCoordinates.identityElement.x)) & (<span class="tok-builtin">@intFromBool</span>(p.y.isZero()) \| <span class="tok-builtin">@intFromBool</span>(p.y.equivalent(AffineCoordinates.identityElement.y)));</span> <span class="line" id="L40"> <span class="tok-kw">const</span> is_identity = <span class="tok-builtin">@intFromBool</span>(p.z.isZero()) \| affine_0;</span> <span class="line" id="L41"> <span class="tok-kw">if</span> (is_identity != <span class="tok-number">0</span>) {</span> <span class="line" id="L42"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.IdentityElement;</span> <span class="line" id="L43"> }</span> <span class="line" id="L44"> }</span> <span class="line" id="L45"></span> <span class="line" id="L46"> <span class="tok-comment">/// Create a point from affine coordinates after checking that they match the curve equation.</span></span> <span class="line" id="L47"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromAffineCoordinates</span>(p: AffineCoordinates) EncodingError!P256 {</span> <span class="line" id="L48"> <span class="tok-kw">const</span> x = p.x;</span> <span class="line" id="L49"> <span class="tok-kw">const</span> y = p.y;</span> <span class="line" id="L50"> <span class="tok-kw">const</span> x3AxB = x.sq().mul(x).sub(x).sub(x).sub(x).add(B);</span> <span class="line" id="L51"> <span class="tok-kw">const</span> yy = y.sq();</span> <span class="line" id="L52"> <span class="tok-kw">const</span> on_curve = <span class="tok-builtin">@intFromBool</span>(x3AxB.equivalent(yy));</span> <span class="line" id="L53"> <span class="tok-kw">const</span> is_identity = <span class="tok-builtin">@intFromBool</span>(x.equivalent(AffineCoordinates.identityElement.x)) & <span class="tok-builtin">@intFromBool</span>(y.equivalent(AffineCoordinates.identityElement.y));</span> <span class="line" id="L54"> <span class="tok-kw">if</span> ((on_curve \| is_identity) == <span class="tok-number">0</span>) {</span> <span class="line" id="L55"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InvalidEncoding;</span> <span class="line" id="L56"> }</span> <span class="line" id="L57"> <span class="tok-kw">var</span> ret = P256{ .x = x, .y = y, .z = Fe.one };</span> <span class="line" id="L58"> ret.z.cMov(P256.identityElement.z, is_identity);</span> <span class="line" id="L59"> <span class="tok-kw">return</span> ret;</span> <span class="line" id="L60"> }</span> <span class="line" id="L61"></span> <span class="line" id="L62"> <span class="tok-comment">/// Create a point from serialized affine coordinates.</span></span> <span class="line" id="L63"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromSerializedAffineCoordinates</span>(xs: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>, ys: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>, endian: std.builtin.Endian) (NonCanonicalError \|\| EncodingError)!P256 {</span> <span class="line" id="L64"> <span class="tok-kw">const</span> x = <span class="tok-kw">try</span> Fe.fromBytes(xs, endian);</span> <span class="line" id="L65"> <span class="tok-kw">const</span> y = <span class="tok-kw">try</span> Fe.fromBytes(ys, endian);</span> <span class="line" id="L66"> <span class="tok-kw">return</span> fromAffineCoordinates(.{ .x = x, .y = y });</span> <span class="line" id="L67"> }</span> <span class="line" id="L68"></span> <span class="line" id="L69"> <span class="tok-comment">/// Recover the Y coordinate from the X coordinate.</span></span> <span class="line" id="L70"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">recoverY</span>(x: Fe, is_odd: <span class="tok-type">bool</span>) NotSquareError!Fe {</span> <span class="line" id="L71"> <span class="tok-kw">const</span> x3AxB = x.sq().mul(x).sub(x).sub(x).sub(x).add(B);</span> <span class="line" id="L72"> <span class="tok-kw">var</span> y = <span class="tok-kw">try</span> x3AxB.sqrt();</span> <span class="line" id="L73"> <span class="tok-kw">const</span> yn = y.neg();</span> <span class="line" id="L74"> y.cMov(yn, <span class="tok-builtin">@intFromBool</span>(is_odd) ^ <span class="tok-builtin">@intFromBool</span>(y.isOdd()));</span> <span class="line" id="L75"> <span class="tok-kw">return</span> y;</span> <span class="line" id="L76"> }</span> <span class="line" id="L77"></span> <span class="line" id="L78"> <span class="tok-comment">/// Deserialize a SEC1-encoded point.</span></span> <span class="line" id="L79"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromSec1</span>(s: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) (EncodingError \|\| NotSquareError \|\| NonCanonicalError)!P256 {</span> <span class="line" id="L80"> <span class="tok-kw">if</span> (s.len < <span class="tok-number">1</span>) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InvalidEncoding;</span> <span class="line" id="L81"> <span class="tok-kw">const</span> encoding_type = s[<span class="tok-number">0</span>];</span> <span class="line" id="L82"> <span class="tok-kw">const</span> encoded = s[<span class="tok-number">1</span>..];</span> <span class="line" id="L83"> <span class="tok-kw">switch</span> (encoding_type) {</span> <span class="line" id="L84"> <span class="tok-number">0</span> => {</span> <span class="line" id="L85"> <span class="tok-kw">if</span> (encoded.len != <span class="tok-number">0</span>) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InvalidEncoding;</span> <span class="line" id="L86"> <span class="tok-kw">return</span> P256.identityElement;</span> <span class="line" id="L87"> },</span> <span class="line" id="L88"> <span class="tok-number">2</span>, <span class="tok-number">3</span> => {</span> <span class="line" id="L89"> <span class="tok-kw">if</span> (encoded.len != <span class="tok-number">32</span>) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InvalidEncoding;</span> <span class="line" id="L90"> <span class="tok-kw">const</span> x = <span class="tok-kw">try</span> Fe.fromBytes(encoded[<span class="tok-number">0</span>..<span class="tok-number">32</span>]., .Big);</span> <span class="line" id="L91"> <span class="tok-kw">const</span> y_is_odd = (encoding_type == <span class="tok-number">3</span>);</span> <span class="line" id="L92"> <span class="tok-kw">const</span> y = <span class="tok-kw">try</span> recoverY(x, y_is_odd);</span> <span class="line" id="L93"> <span class="tok-kw">return</span> P256{ .x = x, .y = y };</span> <span class="line" id="L94"> },</span> <span class="line" id="L95"> <span class="tok-number">4</span> => {</span> <span class="line" id="L96"> <span class="tok-kw">if</span> (encoded.len != <span class="tok-number">64</span>) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InvalidEncoding;</span> <span class="line" id="L97"> <span class="tok-kw">const</span> x = <span class="tok-kw">try</span> Fe.fromBytes(encoded[<span class="tok-number">0</span>..<span class="tok-number">32</span>]., .Big);</span> <span class="line" id="L98"> <span class="tok-kw">const</span> y = <span class="tok-kw">try</span> Fe.fromBytes(encoded[<span class="tok-number">32</span>..<span class="tok-number">64</span>]., .Big);</span> <span class="line" id="L99"> <span class="tok-kw">return</span> P256.fromAffineCoordinates(.{ .x = x, .y = y });</span> <span class="line" id="L100"> },</span> <span class="line" id="L101"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InvalidEncoding,</span> <span class="line" id="L102"> }</span> <span class="line" id="L103"> }</span> <span class="line" id="L104"></span> <span class="line" id="L105"> <span class="tok-comment">/// Serialize a point using the compressed SEC-1 format.</span></span> <span class="line" id="L106"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toCompressedSec1</span>(p: P256) [<span class="tok-number">33</span>]<span class="tok-type">u8</span> {</span> <span class="line" id="L107"> <span class="tok-kw">var</span> out: [<span class="tok-number">33</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L108"> <span class="tok-kw">const</span> xy = p.affineCoordinates();</span> <span class="line" id="L109"> out[<span class="tok-number">0</span>] = <span class="tok-kw">if</span> (xy.y.isOdd()) <span class="tok-number">3</span> <span class="tok-kw">else</span> <span class="tok-number">2</span>;</span> <span class="line" id="L110"> out[<span class="tok-number">1</span>..]. = xy.x.toBytes(.Big);</span> <span class="line" id="L111"> <span class="tok-kw">return</span> out;</span> <span class="line" id="L112"> }</span> <span class="line" id="L113"></span> <span class="line" id="L114"> <span class="tok-comment">/// Serialize a point using the uncompressed SEC-1 format.</span></span> <span class="line" id="L115"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toUncompressedSec1</span>(p: P256) [<span class="tok-number">65</span>]<span class="tok-type">u8</span> {</span> <span class="line" id="L116"> <span class="tok-kw">var</span> out: [<span class="tok-number">65</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L117"> out[<span class="tok-number">0</span>] = <span class="tok-number">4</span>;</span> <span class="line" id="L118"> <span class="tok-kw">const</span> xy = p.affineCoordinates();</span> <span class="line" id="L119"> out[<span class="tok-number">1</span>..<span class="tok-number">33</span>].* = xy.x.toBytes(.Big);</span> <span class="line" id="L120"> out[<span class="tok-number">33</span>..<span class="tok-number">65</span>].* = xy.y.toBytes(.Big);</span> <span class="line" id="L121"> <span class="tok-kw">return</span> out;</span> <span class="line" id="L122"> }</span> <span class="line" id="L123"></span> <span class="line" id="L124"> <span class="tok-comment">/// Return a random point.</span></span> <span class="line" id="L125"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">random</span>() P256 {</span> <span class="line" id="L126"> <span class="tok-kw">const</span> n = scalar.random(.Little);</span> <span class="line" id="L127"> <span class="tok-kw">return</span> basePoint.mul(n, .Little) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L128"> }</span> <span class="line" id="L129"></span> <span class="line" id="L130"> <span class="tok-comment">/// Flip the sign of the X coordinate.</span></span> <span class="line" id="L131"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">neg</span>(p: P256) P256 {</span> <span class="line" id="L132"> <span class="tok-kw">return</span> .{ .x = p.x, .y = p.y.neg(), .z = p.z };</span> <span class="line" id="L133"> }</span> <span class="line" id="L134"></span> <span class="line" id="L135"> <span class="tok-comment">/// Double a P256 point.</span></span> <span class="line" id="L136"> <span class="tok-comment">// Algorithm 6 from https://eprint.iacr.org/2015/1060.pdf</span> </span> <span class="line" id="L137"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">dbl</span>(p: P256) P256 {</span> <span class="line" id="L138"> <span class="tok-kw">var</span> t0 = p.x.sq();</span> <span class="line" id="L139"> <span class="tok-kw">var</span> t1 = p.y.sq();</span> <span class="line" id="L140"> <span class="tok-kw">var</span> t2 = p.z.sq();</span> <span class="line" id="L141"> <span class="tok-kw">var</span> t3 = p.x.mul(p.y);</span> <span class="line" id="L142"> t3 = t3.dbl();</span> <span class="line" id="L143"> <span class="tok-kw">var</span> Z3 = p.x.mul(p.z);</span> <span class="line" id="L144"> Z3 = Z3.add(Z3);</span> <span class="line" id="L145"> <span class="tok-kw">var</span> Y3 = B.mul(t2);</span> <span class="line" id="L146"> Y3 = Y3.sub(Z3);</span> <span class="line" id="L147"> <span class="tok-kw">var</span> X3 = Y3.dbl();</span> <span class="line" id="L148"> Y3 = X3.add(Y3);</span> <span class="line" id="L149"> X3 = t1.sub(Y3);</span> <span class="line" id="L150"> Y3 = t1.add(Y3);</span> <span class="line" id="L151"> Y3 = X3.mul(Y3);</span> <span class="line" id="L152"> X3 = X3.mul(t3);</span> <span class="line" id="L153"> t3 = t2.dbl();</span> <span class="line" id="L154"> t2 = t2.add(t3);</span> <span class="line" id="L155"> Z3 = B.mul(Z3);</span> <span class="line" id="L156"> Z3 = Z3.sub(t2);</span> <span class="line" id="L157"> Z3 = Z3.sub(t0);</span> <span class="line" id="L158"> t3 = Z3.dbl();</span> <span class="line" id="L159"> Z3 = Z3.add(t3);</span> <span class="line" id="L160"> t3 = t0.dbl();</span> <span class="line" id="L161"> t0 = t3.add(t0);</span> <span class="line" id="L162"> t0 = t0.sub(t2);</span> <span class="line" id="L163"> t0 = t0.mul(Z3);</span> <span class="line" id="L164"> Y3 = Y3.add(t0);</span> <span class="line" id="L165"> t0 = p.y.mul(p.z);</span> <span class="line" id="L166"> t0 = t0.dbl();</span> <span class="line" id="L167"> Z3 = t0.mul(Z3);</span> <span class="line" id="L168"> X3 = X3.sub(Z3);</span> <span class="line" id="L169"> Z3 = t0.mul(t1);</span> <span class="line" id="L170"> Z3 = Z3.dbl().dbl();</span> <span class="line" id="L171"> <span class="tok-kw">return</span> .{</span> <span class="line" id="L172"> .x = X3,</span> <span class="line" id="L173"> .y = Y3,</span> <span class="line" id="L174"> .z = Z3,</span> <span class="line" id="L175"> };</span> <span class="line" id="L176"> }</span> <span class="line" id="L177"></span> <span class="line" id="L178"> <span class="tok-comment">/// Add P256 points, the second being specified using affine coordinates.</span></span> <span class="line" id="L179"> <span class="tok-comment">// Algorithm 5 from https://eprint.iacr.org/2015/1060.pdf</span> </span> <span class="line" id="L180"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">addMixed</span>(p: P256, q: AffineCoordinates) P256 {</span> <span class="line" id="L181"> <span class="tok-kw">var</span> t0 = p.x.mul(q.x);</span> <span class="line" id="L182"> <span class="tok-kw">var</span> t1 = p.y.mul(q.y);</span> <span class="line" id="L183"> <span class="tok-kw">var</span> t3 = q.x.add(q.y);</span> <span class="line" id="L184"> <span class="tok-kw">var</span> t4 = p.x.add(p.y);</span> <span class="line" id="L185"> t3 = t3.mul(t4);</span> <span class="line" id="L186"> t4 = t0.add(t1);</span> <span class="line" id="L187"> t3 = t3.sub(t4);</span> <span class="line" id="L188"> t4 = q.y.mul(p.z);</span> <span class="line" id="L189"> t4 = t4.add(p.y);</span> <span class="line" id="L190"> <span class="tok-kw">var</span> Y3 = q.x.mul(p.z);</span> <span class="line" id="L191"> Y3 = Y3.add(p.x);</span> <span class="line" id="L192"> <span class="tok-kw">var</span> Z3 = B.mul(p.z);</span> <span class="line" id="L193"> <span class="tok-kw">var</span> X3 = Y3.sub(Z3);</span> <span class="line" id="L194"> Z3 = X3.dbl();</span> <span class="line" id="L195"> X3 = X3.add(Z3);</span> <span class="line" id="L196"> Z3 = t1.sub(X3);</span> <span class="line" id="L197"> X3 = t1.add(X3);</span> <span class="line" id="L198"> Y3 = B.mul(Y3);</span> <span class="line" id="L199"> t1 = p.z.dbl();</span> <span class="line" id="L200"> <span class="tok-kw">var</span> t2 = t1.add(p.z);</span> <span class="line" id="L201"> Y3 = Y3.sub(t2);</span> <span class="line" id="L202"> Y3 = Y3.sub(t0);</span> <span class="line" id="L203"> t1 = Y3.dbl();</span> <span class="line" id="L204"> Y3 = t1.add(Y3);</span> <span class="line" id="L205"> t1 = t0.dbl();</span> <span class="line" id="L206"> t0 = t1.add(t0);</span> <span class="line" id="L207"> t0 = t0.sub(t2);</span> <span class="line" id="L208"> t1 = t4.mul(Y3);</span> <span class="line" id="L209"> t2 = t0.mul(Y3);</span> <span class="line" id="L210"> Y3 = X3.mul(Z3);</span> <span class="line" id="L211"> Y3 = Y3.add(t2);</span> <span class="line" id="L212"> X3 = t3.mul(X3);</span> <span class="line" id="L213"> X3 = X3.sub(t1);</span> <span class="line" id="L214"> Z3 = t4.mul(Z3);</span> <span class="line" id="L215"> t1 = t3.mul(t0);</span> <span class="line" id="L216"> Z3 = Z3.add(t1);</span> <span class="line" id="L217"> <span class="tok-kw">var</span> ret = P256{</span> <span class="line" id="L218"> .x = X3,</span> <span class="line" id="L219"> .y = Y3,</span> <span class="line" id="L220"> .z = Z3,</span> <span class="line" id="L221"> };</span> <span class="line" id="L222"> ret.cMov(p, <span class="tok-builtin">@intFromBool</span>(q.x.isZero()));</span> <span class="line" id="L223"> <span class="tok-kw">return</span> ret;</span> <span class="line" id="L224"> }</span> <span class="line" id="L225"></span> <span class="line" id="L226"> <span class="tok-comment">/// Add P256 points.</span></span> <span class="line" id="L227"> <span class="tok-comment">// Algorithm 4 from https://eprint.iacr.org/2015/1060.pdf</span> </span> <span class="line" id="L228"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">add</span>(p: P256, q: P256) P256 {</span> <span class="line" id="L229"> <span class="tok-kw">var</span> t0 = p.x.mul(q.x);</span> <span class="line" id="L230"> <span class="tok-kw">var</span> t1 = p.y.mul(q.y);</span> <span class="line" id="L231"> <span class="tok-kw">var</span> t2 = p.z.mul(q.z);</span> <span class="line" id="L232"> <span class="tok-kw">var</span> t3 = p.x.add(p.y);</span> <span class="line" id="L233"> <span class="tok-kw">var</span> t4 = q.x.add(q.y);</span> <span class="line" id="L234"> t3 = t3.mul(t4);</span> <span class="line" id="L235"> t4 = t0.add(t1);</span> <span class="line" id="L236"> t3 = t3.sub(t4);</span> <span class="line" id="L237"> t4 = p.y.add(p.z);</span> <span class="line" id="L238"> <span class="tok-kw">var</span> X3 = q.y.add(q.z);</span> <span class="line" id="L239"> t4 = t4.mul(X3);</span> <span class="line" id="L240"> X3 = t1.add(t2);</span> <span class="line" id="L241"> t4 = t4.sub(X3);</span> <span class="line" id="L242"> X3 = p.x.add(p.z);</span> <span class="line" id="L243"> <span class="tok-kw">var</span> Y3 = q.x.add(q.z);</span> <span class="line" id="L244"> X3 = X3.mul(Y3);</span> <span class="line" id="L245"> Y3 = t0.add(t2);</span> <span class="line" id="L246"> Y3 = X3.sub(Y3);</span> <span class="line" id="L247"> <span class="tok-kw">var</span> Z3 = B.mul(t2);</span> <span class="line" id="L248"> X3 = Y3.sub(Z3);</span> <span class="line" id="L249"> Z3 = X3.dbl();</span> <span class="line" id="L250"> X3 = X3.add(Z3);</span> <span class="line" id="L251"> Z3 = t1.sub(X3);</span> <span class="line" id="L252"> X3 = t1.add(X3);</span> <span class="line" id="L253"> Y3 = B.mul(Y3);</span> <span class="line" id="L254"> t1 = t2.dbl();</span> <span class="line" id="L255"> t2 = t1.add(t2);</span> <span class="line" id="L256"> Y3 = Y3.sub(t2);</span> <span class="line" id="L257"> Y3 = Y3.sub(t0);</span> <span class="line" id="L258"> t1 = Y3.dbl();</span> <span class="line" id="L259"> Y3 = t1.add(Y3);</span> <span class="line" id="L260"> t1 = t0.dbl();</span> <span class="line" id="L261"> t0 = t1.add(t0);</span> <span class="line" id="L262"> t0 = t0.sub(t2);</span> <span class="line" id="L263"> t1 = t4.mul(Y3);</span> <span class="line" id="L264"> t2 = t0.mul(Y3);</span> <span class="line" id="L265"> Y3 = X3.mul(Z3);</span> <span class="line" id="L266"> Y3 = Y3.add(t2);</span> <span class="line" id="L267"> X3 = t3.mul(X3);</span> <span class="line" id="L268"> X3 = X3.sub(t1);</span> <span class="line" id="L269"> Z3 = t4.mul(Z3);</span> <span class="line" id="L270"> t1 = t3.mul(t0);</span> <span class="line" id="L271"> Z3 = Z3.add(t1);</span> <span class="line" id="L272"> <span class="tok-kw">return</span> .{</span> <span class="line" id="L273"> .x = X3,</span> <span class="line" id="L274"> .y = Y3,</span> <span class="line" id="L275"> .z = Z3,</span> <span class="line" id="L276"> };</span> <span class="line" id="L277"> }</span> <span class="line" id="L278"></span> <span class="line" id="L279"> <span class="tok-comment">/// Subtract P256 points.</span></span> <span class="line" id="L280"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">sub</span>(p: P256, q: P256) P256 {</span> <span class="line" id="L281"> <span class="tok-kw">return</span> p.add(q.neg());</span> <span class="line" id="L282"> }</span> <span class="line" id="L283"></span> <span class="line" id="L284"> <span class="tok-comment">/// Subtract P256 points, the second being specified using affine coordinates.</span></span> <span class="line" id="L285"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">subMixed</span>(p: P256, q: AffineCoordinates) P256 {</span> <span class="line" id="L286"> <span class="tok-kw">return</span> p.addMixed(q.neg());</span> <span class="line" id="L287"> }</span> <span class="line" id="L288"></span> <span class="line" id="L289"> <span class="tok-comment">/// Return affine coordinates.</span></span> <span class="line" id="L290"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">affineCoordinates</span>(p: P256) AffineCoordinates {</span> <span class="line" id="L291"> <span class="tok-kw">const</span> affine_0 = <span class="tok-builtin">@intFromBool</span>(p.x.equivalent(AffineCoordinates.identityElement.x)) & (<span class="tok-builtin">@intFromBool</span>(p.y.isZero()) \| <span class="tok-builtin">@intFromBool</span>(p.y.equivalent(AffineCoordinates.identityElement.y)));</span> <span class="line" id="L292"> <span class="tok-kw">const</span> is_identity = <span class="tok-builtin">@intFromBool</span>(p.z.isZero()) \| affine_0;</span> <span class="line" id="L293"> <span class="tok-kw">const</span> zinv = p.z.invert();</span> <span class="line" id="L294"> <span class="tok-kw">var</span> ret = AffineCoordinates{</span> <span class="line" id="L295"> .x = p.x.mul(zinv),</span> <span class="line" id="L296"> .y = p.y.mul(zinv),</span> <span class="line" id="L297"> };</span> <span class="line" id="L298"> ret.cMov(AffineCoordinates.identityElement, is_identity);</span> <span class="line" id="L299"> <span class="tok-kw">return</span> ret;</span> <span class="line" id="L300"> }</span> <span class="line" id="L301"></span> <span class="line" id="L302"> <span class="tok-comment">/// Return true if both coordinate sets represent the same point.</span></span> <span class="line" id="L303"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">equivalent</span>(a: P256, b: P256) <span class="tok-type">bool</span> {</span> <span class="line" id="L304"> <span class="tok-kw">if</span> (a.sub(b).rejectIdentity()) {</span> <span class="line" id="L305"> <span class="tok-kw">return</span> <span class="tok-null">false</span>;</span> <span class="line" id="L306"> } <span class="tok-kw">else</span> \|_\| {</span> <span class="line" id="L307"> <span class="tok-kw">return</span> <span class="tok-null">true</span>;</span> <span class="line" id="L308"> }</span> <span class="line" id="L309"> }</span> <span class="line" id="L310"></span> <span class="line" id="L311"> <span class="tok-kw">fn</span> <span class="tok-fn">cMov</span>(p: P256, a: P256, c: <span class="tok-type">u1</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L312"> p.x.cMov(a.x, c);</span> <span class="line" id="L313"> p.y.cMov(a.y, c);</span> <span class="line" id="L314"> p.z.cMov(a.z, c);</span> <span class="line" id="L315"> }</span> <span class="line" id="L316"></span> <span class="line" id="L317"> <span class="tok-kw">fn</span> <span class="tok-fn">pcSelect</span>(<span class="tok-kw">comptime</span> n: <span class="tok-type">usize</span>, pc: <span class="tok-kw">const</span> [n]P256, b: <span class="tok-type">u8</span>) P256 {</span> <span class="line" id="L318"> <span class="tok-kw">var</span> t = P256.identityElement;</span> <span class="line" id="L319"> <span class="tok-kw">comptime</span> <span class="tok-kw">var</span> i: <span class="tok-type">u8</span> = <span class="tok-number">1</span>;</span> <span class="line" id="L320"> <span class="tok-kw">inline</span> <span class="tok-kw">while</span> (i < pc.len) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L321"> t.cMov(pc[i], <span class="tok-builtin">@as</span>(<span class="tok-type">u1</span>, <span class="tok-builtin">@truncate</span>((<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, b ^ i) -% <span class="tok-number">1</span>) >> <span class="tok-number">8</span>)));</span> <span class="line" id="L322"> }</span> <span class="line" id="L323"> <span class="tok-kw">return</span> t;</span> <span class="line" id="L324"> }</span> <span class="line" id="L325"></span> <span class="line" id="L326"> <span class="tok-kw">fn</span> <span class="tok-fn">slide</span>(s: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>) [<span class="tok-number">2</span> * <span class="tok-number">32</span> + <span class="tok-number">1</span>]<span class="tok-type">i8</span> {</span> <span class="line" id="L327"> <span class="tok-kw">var</span> e: [<span class="tok-number">2</span> * <span class="tok-number">32</span> + <span class="tok-number">1</span>]<span class="tok-type">i8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L328"> <span class="tok-kw">for</span> (s, <span class="tok-number">0</span>..) \|x, i\| {</span> <span class="line" id="L329"> e[i * <span class="tok-number">2</span> + <span class="tok-number">0</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">i8</span>, <span class="tok-builtin">@as</span>(<span class="tok-type">u4</span>, <span class="tok-builtin">@truncate</span>(x)));</span> <span class="line" id="L330"> e[i * <span class="tok-number">2</span> + <span class="tok-number">1</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">i8</span>, <span class="tok-builtin">@as</span>(<span class="tok-type">u4</span>, <span class="tok-builtin">@truncate</span>(x >> <span class="tok-number">4</span>)));</span> <span class="line" id="L331"> }</span> <span class="line" id="L332"> <span class="tok-comment">// Now, e[0..63] is between 0 and 15, e[63] is between 0 and 7</span> </span> <span class="line" id="L333"> <span class="tok-kw">var</span> carry: <span class="tok-type">i8</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L334"> <span class="tok-kw">for</span> (e[<span class="tok-number">0</span>..<span class="tok-number">64</span>]) \|x\| {</span> <span class="line" id="L335"> x. += carry;</span> <span class="line" id="L336"> carry = (x.* + <span class="tok-number">8</span>) >> <span class="tok-number">4</span>;</span> <span class="line" id="L337"> x.* -= carry * <span class="tok-number">16</span>;</span> <span class="line" id="L338"> std.debug.assert(x.* >= -<span class="tok-number">8</span> <span class="tok-kw">and</span> x.* <= <span class="tok-number">8</span>);</span> <span class="line" id="L339"> }</span> <span class="line" id="L340"> e[<span class="tok-number">64</span>] = carry;</span> <span class="line" id="L341"> <span class="tok-comment">// Now, e[] is between -8 and 8, including e[64]</span> </span> <span class="line" id="L342"> std.debug.assert(carry >= -<span class="tok-number">8</span> <span class="tok-kw">and</span> carry <= <span class="tok-number">8</span>);</span> <span class="line" id="L343"> <span class="tok-kw">return</span> e;</span> <span class="line" id="L344"> }</span> <span class="line" id="L345"></span> <span class="line" id="L346"> <span class="tok-kw">fn</span> <span class="tok-fn">pcMul</span>(pc: <span class="tok-kw">const</span> [<span class="tok-number">9</span>]P256, s: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>, <span class="tok-kw">comptime</span> vartime: <span class="tok-type">bool</span>) IdentityElementError!P256 {</span> <span class="line" id="L347"> std.debug.assert(vartime);</span> <span class="line" id="L348"> <span class="tok-kw">const</span> e = slide(s);</span> <span class="line" id="L349"> <span class="tok-kw">var</span> q = P256.identityElement;</span> <span class="line" id="L350"> <span class="tok-kw">var</span> pos = e.len - <span class="tok-number">1</span>;</span> <span class="line" id="L351"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) : (pos -= <span class="tok-number">1</span>) {</span> <span class="line" id="L352"> <span class="tok-kw">const</span> slot = e[pos];</span> <span class="line" id="L353"> <span class="tok-kw">if</span> (slot > <span class="tok-number">0</span>) {</span> <span class="line" id="L354"> q = q.add(pc[<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(slot))]);</span> <span class="line" id="L355"> } <span class="tok-kw">else</span> <span class="tok-kw">if</span> (slot < <span class="tok-number">0</span>) {</span> <span class="line" id="L356"> q = q.sub(pc[<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(-slot))]);</span> <span class="line" id="L357"> }</span> <span class="line" id="L358"> <span class="tok-kw">if</span> (pos == <span class="tok-number">0</span>) <span class="tok-kw">break</span>;</span> <span class="line" id="L359"> q = q.dbl().dbl().dbl().dbl();</span> <span class="line" id="L360"> }</span> <span class="line" id="L361"> <span class="tok-kw">try</span> q.rejectIdentity();</span> <span class="line" id="L362"> <span class="tok-kw">return</span> q;</span> <span class="line" id="L363"> }</span> <span class="line" id="L364"></span> <span class="line" id="L365"> <span class="tok-kw">fn</span> <span class="tok-fn">pcMul16</span>(pc: <span class="tok-kw">const</span> [<span class="tok-number">16</span>]P256, s: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>, <span class="tok-kw">comptime</span> vartime: <span class="tok-type">bool</span>) IdentityElementError!P256 {</span> <span class="line" id="L366"> <span class="tok-kw">var</span> q = P256.identityElement;</span> <span class="line" id="L367"> <span class="tok-kw">var</span> pos: <span class="tok-type">usize</span> = <span class="tok-number">252</span>;</span> <span class="line" id="L368"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) : (pos -= <span class="tok-number">4</span>) {</span> <span class="line" id="L369"> <span class="tok-kw">const</span> slot = <span class="tok-builtin">@as</span>(<span class="tok-type">u4</span>, <span class="tok-builtin">@truncate</span>((s[pos >> <span class="tok-number">3</span>] >> <span class="tok-builtin">@as</span>(<span class="tok-type">u3</span>, <span class="tok-builtin">@truncate</span>(pos)))));</span> <span class="line" id="L370"> <span class="tok-kw">if</span> (vartime) {</span> <span class="line" id="L371"> <span class="tok-kw">if</span> (slot != <span class="tok-number">0</span>) {</span> <span class="line" id="L372"> q = q.add(pc[slot]);</span> <span class="line" id="L373"> }</span> <span class="line" id="L374"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L375"> q = q.add(pcSelect(<span class="tok-number">16</span>, pc, slot));</span> <span class="line" id="L376"> }</span> <span class="line" id="L377"> <span class="tok-kw">if</span> (pos == <span class="tok-number">0</span>) <span class="tok-kw">break</span>;</span> <span class="line" id="L378"> q = q.dbl().dbl().dbl().dbl();</span> <span class="line" id="L379"> }</span> <span class="line" id="L380"> <span class="tok-kw">try</span> q.rejectIdentity();</span> <span class="line" id="L381"> <span class="tok-kw">return</span> q;</span> <span class="line" id="L382"> }</span> <span class="line" id="L383"></span> <span class="line" id="L384"> <span class="tok-kw">fn</span> <span class="tok-fn">precompute</span>(p: P256, <span class="tok-kw">comptime</span> count: <span class="tok-type">usize</span>) [<span class="tok-number">1</span> + count]P256 {</span> <span class="line" id="L385"> <span class="tok-kw">var</span> pc: [<span class="tok-number">1</span> + count]P256 = <span class="tok-null">undefined</span>;</span> <span class="line" id="L386"> pc[<span class="tok-number">0</span>] = P256.identityElement;</span> <span class="line" id="L387"> pc[<span class="tok-number">1</span>] = p;</span> <span class="line" id="L388"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">2</span>;</span> <span class="line" id="L389"> <span class="tok-kw">while</span> (i <= count) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L390"> pc[i] = <span class="tok-kw">if</span> (i % <span class="tok-number">2</span> == <span class="tok-number">0</span>) pc[i / <span class="tok-number">2</span>].dbl() <span class="tok-kw">else</span> pc[i - <span class="tok-number">1</span>].add(p);</span> <span class="line" id="L391"> }</span> <span class="line" id="L392"> <span class="tok-kw">return</span> pc;</span> <span class="line" id="L393"> }</span> <span class="line" id="L394"></span> <span class="line" id="L395"> <span class="tok-kw">const</span> basePointPc = pc: {</span> <span class="line" id="L396"> <span class="tok-builtin">@setEvalBranchQuota</span>(<span class="tok-number">50000</span>);</span> <span class="line" id="L397"> <span class="tok-kw">break</span> :pc precompute(P256.basePoint, <span class="tok-number">15</span>);</span> <span class="line" id="L398"> };</span> <span class="line" id="L399"></span> <span class="line" id="L400"> <span class="tok-comment">/// Multiply an elliptic curve point by a scalar.</span></span> <span class="line" id="L401"> <span class="tok-comment">/// Return error.IdentityElement if the result is the identity element.</span></span> <span class="line" id="L402"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">mul</span>(p: P256, s_: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>, endian: std.builtin.Endian) IdentityElementError!P256 {</span> <span class="line" id="L403"> <span class="tok-kw">const</span> s = <span class="tok-kw">if</span> (endian == .Little) s_ <span class="tok-kw">else</span> Fe.orderSwap(s_);</span> <span class="line" id="L404"> <span class="tok-kw">if</span> (p.is_base) {</span> <span class="line" id="L405"> <span class="tok-kw">return</span> pcMul16(&basePointPc, s, <span class="tok-null">false</span>);</span> <span class="line" id="L406"> }</span> <span class="line" id="L407"> <span class="tok-kw">try</span> p.rejectIdentity();</span> <span class="line" id="L408"> <span class="tok-kw">const</span> pc = precompute(p, <span class="tok-number">15</span>);</span> <span class="line" id="L409"> <span class="tok-kw">return</span> pcMul16(&pc, s, <span class="tok-null">false</span>);</span> <span class="line" id="L410"> }</span> <span class="line" id="L411"></span> <span class="line" id="L412"> <span class="tok-comment">/// Multiply an elliptic curve point by a PUBLIC* scalar IN VARIABLE TIME</span></span> <span class="line" id="L413"> <span class="tok-comment">/// This can be used for signature verification.</span></span> <span class="line" id="L414"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">mulPublic</span>(p: P256, s_: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>, endian: std.builtin.Endian) IdentityElementError!P256 {</span> <span class="line" id="L415"> <span class="tok-kw">const</span> s = <span class="tok-kw">if</span> (endian == .Little) s_ <span class="tok-kw">else</span> Fe.orderSwap(s_);</span> <span class="line" id="L416"> <span class="tok-kw">if</span> (p.is_base) {</span> <span class="line" id="L417"> <span class="tok-kw">return</span> pcMul16(&basePointPc, s, <span class="tok-null">true</span>);</span> <span class="line" id="L418"> }</span> <span class="line" id="L419"> <span class="tok-kw">try</span> p.rejectIdentity();</span> <span class="line" id="L420"> <span class="tok-kw">const</span> pc = precompute(p, <span class="tok-number">8</span>);</span> <span class="line" id="L421"> <span class="tok-kw">return</span> pcMul(&pc, s, <span class="tok-null">true</span>);</span> <span class="line" id="L422"> }</span> <span class="line" id="L423"></span> <span class="line" id="L424"> <span class="tok-comment">/// Double-base multiplication of public parameters - Compute (p1s1)+(p2s2) IN VARIABLE TIME</span></span> <span class="line" id="L425"> <span class="tok-comment">/// This can be used for signature verification.</span></span> <span class="line" id="L426"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">mulDoubleBasePublic</span>(p1: P256, s1_: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>, p2: P256, s2_: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>, endian: std.builtin.Endian) IdentityElementError!P256 {</span> <span class="line" id="L427"> <span class="tok-kw">const</span> s1 = <span class="tok-kw">if</span> (endian == .Little) s1_ <span class="tok-kw">else</span> Fe.orderSwap(s1_);</span> <span class="line" id="L428"> <span class="tok-kw">const</span> s2 = <span class="tok-kw">if</span> (endian == .Little) s2_ <span class="tok-kw">else</span> Fe.orderSwap(s2_);</span> <span class="line" id="L429"> <span class="tok-kw">try</span> p1.rejectIdentity();</span> <span class="line" id="L430"> <span class="tok-kw">var</span> pc1_array: [<span class="tok-number">9</span>]P256 = <span class="tok-null">undefined</span>;</span> <span class="line" id="L431"> <span class="tok-kw">const</span> pc1 = <span class="tok-kw">if</span> (p1.is_base) basePointPc[<span class="tok-number">0</span>..<span class="tok-number">9</span>] <span class="tok-kw">else</span> pc: {</span> <span class="line" id="L432"> pc1_array = precompute(p1, <span class="tok-number">8</span>);</span> <span class="line" id="L433"> <span class="tok-kw">break</span> :pc &pc1_array;</span> <span class="line" id="L434"> };</span> <span class="line" id="L435"> <span class="tok-kw">try</span> p2.rejectIdentity();</span> <span class="line" id="L436"> <span class="tok-kw">var</span> pc2_array: [<span class="tok-number">9</span>]P256 = <span class="tok-null">undefined</span>;</span> <span class="line" id="L437"> <span class="tok-kw">const</span> pc2 = <span class="tok-kw">if</span> (p2.is_base) basePointPc[<span class="tok-number">0</span>..<span class="tok-number">9</span>] <span class="tok-kw">else</span> pc: {</span> <span class="line" id="L438"> pc2_array = precompute(p2, <span class="tok-number">8</span>);</span> <span class="line" id="L439"> <span class="tok-kw">break</span> :pc &pc2_array;</span> <span class="line" id="L440"> };</span> <span class="line" id="L441"> <span class="tok-kw">const</span> e1 = slide(s1);</span> <span class="line" id="L442"> <span class="tok-kw">const</span> e2 = slide(s2);</span> <span class="line" id="L443"> <span class="tok-kw">var</span> q = P256.identityElement;</span> <span class="line" id="L444"> <span class="tok-kw">var</span> pos: <span class="tok-type">usize</span> = <span class="tok-number">2</span> * <span class="tok-number">32</span>;</span> <span class="line" id="L445"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) : (pos -= <span class="tok-number">1</span>) {</span> <span class="line" id="L446"> <span class="tok-kw">const</span> slot1 = e1[pos];</span> <span class="line" id="L447"> <span class="tok-kw">if</span> (slot1 > <span class="tok-number">0</span>) {</span> <span class="line" id="L448"> q = q.add(pc1[<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(slot1))]);</span> <span class="line" id="L449"> } <span class="tok-kw">else</span> <span class="tok-kw">if</span> (slot1 < <span class="tok-number">0</span>) {</span> <span class="line" id="L450"> q = q.sub(pc1[<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(-slot1))]);</span> <span class="line" id="L451"> }</span> <span class="line" id="L452"> <span class="tok-kw">const</span> slot2 = e2[pos];</span> <span class="line" id="L453"> <span class="tok-kw">if</span> (slot2 > <span class="tok-number">0</span>) {</span> <span class="line" id="L454"> q = q.add(pc2[<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(slot2))]);</span> <span class="line" id="L455"> } <span class="tok-kw">else</span> <span class="tok-kw">if</span> (slot2 < <span class="tok-number">0</span>) {</span> <span class="line" id="L456"> q = q.sub(pc2[<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(-slot2))]);</span> <span class="line" id="L457"> }</span> <span class="line" id="L458"> <span class="tok-kw">if</span> (pos == <span class="tok-number">0</span>) <span class="tok-kw">break</span>;</span> <span class="line" id="L459"> q = q.dbl().dbl().dbl().dbl();</span> <span class="line" id="L460"> }</span> <span class="line" id="L461"> <span class="tok-kw">try</span> q.rejectIdentity();</span> <span class="line" id="L462"> <span class="tok-kw">return</span> q;</span> <span class="line" id="L463"> }</span> <span class="line" id="L464">};</span> <span class="line" id="L465"></span> <span class="line" id="L466"><span class="tok-comment">/// A point in affine coordinates.</span></span> <span class="line" id="L467"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> AffineCoordinates = <span class="tok-kw">struct</span> {</span> <span class="line" id="L468"> x: P256.Fe,</span> <span class="line" id="L469"> y: P256.Fe,</span> <span class="line" id="L470"></span> <span class="line" id="L471"> <span class="tok-comment">/// Identity element in affine coordinates.</span></span> <span class="line" id="L472"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> identityElement = AffineCoordinates{ .x = P256.identityElement.x, .y = P256.identityElement.y };</span> <span class="line" id="L473"></span> <span class="line" id="L474"> <span class="tok-kw">fn</span> <span class="tok-fn">cMov</span>(p: *AffineCoordinates, a: AffineCoordinates, c: <span class="tok-type">u1</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L475"> p.x.cMov(a.x, c);</span> <span class="line" id="L476"> p.y.cMov(a.y, c);</span> <span class="line" id="L477"> }</span> <span class="line" id="L478">};</span> <span class="line" id="L479"></span> <span class="line" id="L480"><span class="tok-kw">test</span> {</span> <span class="line" id="L481"> _ = <span class="tok-builtin">@import</span>(<span class="tok-str">"tests/p256.zig"</span>);</span> <span class="line" id="L482">}</span> <span class="line" id="L483"></span> </code></pre></body> </html>
repos/yazap/docs/src/std/crypto	repos/yazap/docs/src/std/crypto/pcurves/p384.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/pcurves/p384.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> crypto = std.crypto;</span> <span class="line" id="L3"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L4"><span class="tok-kw">const</span> meta = std.meta;</span> <span class="line" id="L5"></span> <span class="line" id="L6"><span class="tok-kw">const</span> EncodingError = crypto.errors.EncodingError;</span> <span class="line" id="L7"><span class="tok-kw">const</span> IdentityElementError = crypto.errors.IdentityElementError;</span> <span class="line" id="L8"><span class="tok-kw">const</span> NonCanonicalError = crypto.errors.NonCanonicalError;</span> <span class="line" id="L9"><span class="tok-kw">const</span> NotSquareError = crypto.errors.NotSquareError;</span> <span class="line" id="L10"></span> <span class="line" id="L11"><span class="tok-comment">/// Group operations over P384.</span></span> <span class="line" id="L12"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> P384 = <span class="tok-kw">struct</span> {</span> <span class="line" id="L13"> <span class="tok-comment">/// The underlying prime field.</span></span> <span class="line" id="L14"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Fe = <span class="tok-builtin">@import</span>(<span class="tok-str">"p384/field.zig"</span>).Fe;</span> <span class="line" id="L15"> <span class="tok-comment">/// Field arithmetic mod the order of the main subgroup.</span></span> <span class="line" id="L16"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> scalar = <span class="tok-builtin">@import</span>(<span class="tok-str">"p384/scalar.zig"</span>);</span> <span class="line" id="L17"></span> <span class="line" id="L18"> x: Fe,</span> <span class="line" id="L19"> y: Fe,</span> <span class="line" id="L20"> z: Fe = Fe.one,</span> <span class="line" id="L21"></span> <span class="line" id="L22"> is_base: <span class="tok-type">bool</span> = <span class="tok-null">false</span>,</span> <span class="line" id="L23"></span> <span class="line" id="L24"> <span class="tok-comment">/// The P384 base point.</span></span> <span class="line" id="L25"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> basePoint = P384{</span> <span class="line" id="L26"> .x = Fe.fromInt(<span class="tok-number">26247035095799689268623156744566981891852923491109213387815615900925518854738050089022388053975719786650872476732087</span>) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L27"> .y = Fe.fromInt(<span class="tok-number">8325710961489029985546751289520108179287853048861315594709205902480503199884419224438643760392947333078086511627871</span>) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L28"> .z = Fe.one,</span> <span class="line" id="L29"> .is_base = <span class="tok-null">true</span>,</span> <span class="line" id="L30"> };</span> <span class="line" id="L31"></span> <span class="line" id="L32"> <span class="tok-comment">/// The P384 neutral element.</span></span> <span class="line" id="L33"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> identityElement = P384{ .x = Fe.zero, .y = Fe.one, .z = Fe.zero };</span> <span class="line" id="L34"></span> <span class="line" id="L35"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> B = Fe.fromInt(<span class="tok-number">27580193559959705877849011840389048093056905856361568521428707301988689241309860865136260764883745107765439761230575</span>) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L36"></span> <span class="line" id="L37"> <span class="tok-comment">/// Reject the neutral element.</span></span> <span class="line" id="L38"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">rejectIdentity</span>(p: P384) IdentityElementError!<span class="tok-type">void</span> {</span> <span class="line" id="L39"> <span class="tok-kw">const</span> affine_0 = <span class="tok-builtin">@intFromBool</span>(p.x.equivalent(AffineCoordinates.identityElement.x)) & (<span class="tok-builtin">@intFromBool</span>(p.y.isZero()) \| <span class="tok-builtin">@intFromBool</span>(p.y.equivalent(AffineCoordinates.identityElement.y)));</span> <span class="line" id="L40"> <span class="tok-kw">const</span> is_identity = <span class="tok-builtin">@intFromBool</span>(p.z.isZero()) \| affine_0;</span> <span class="line" id="L41"> <span class="tok-kw">if</span> (is_identity != <span class="tok-number">0</span>) {</span> <span class="line" id="L42"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.IdentityElement;</span> <span class="line" id="L43"> }</span> <span class="line" id="L44"> }</span> <span class="line" id="L45"></span> <span class="line" id="L46"> <span class="tok-comment">/// Create a point from affine coordinates after checking that they match the curve equation.</span></span> <span class="line" id="L47"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromAffineCoordinates</span>(p: AffineCoordinates) EncodingError!P384 {</span> <span class="line" id="L48"> <span class="tok-kw">const</span> x = p.x;</span> <span class="line" id="L49"> <span class="tok-kw">const</span> y = p.y;</span> <span class="line" id="L50"> <span class="tok-kw">const</span> x3AxB = x.sq().mul(x).sub(x).sub(x).sub(x).add(B);</span> <span class="line" id="L51"> <span class="tok-kw">const</span> yy = y.sq();</span> <span class="line" id="L52"> <span class="tok-kw">const</span> on_curve = <span class="tok-builtin">@intFromBool</span>(x3AxB.equivalent(yy));</span> <span class="line" id="L53"> <span class="tok-kw">const</span> is_identity = <span class="tok-builtin">@intFromBool</span>(x.equivalent(AffineCoordinates.identityElement.x)) & <span class="tok-builtin">@intFromBool</span>(y.equivalent(AffineCoordinates.identityElement.y));</span> <span class="line" id="L54"> <span class="tok-kw">if</span> ((on_curve \| is_identity) == <span class="tok-number">0</span>) {</span> <span class="line" id="L55"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InvalidEncoding;</span> <span class="line" id="L56"> }</span> <span class="line" id="L57"> <span class="tok-kw">var</span> ret = P384{ .x = x, .y = y, .z = Fe.one };</span> <span class="line" id="L58"> ret.z.cMov(P384.identityElement.z, is_identity);</span> <span class="line" id="L59"> <span class="tok-kw">return</span> ret;</span> <span class="line" id="L60"> }</span> <span class="line" id="L61"></span> <span class="line" id="L62"> <span class="tok-comment">/// Create a point from serialized affine coordinates.</span></span> <span class="line" id="L63"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromSerializedAffineCoordinates</span>(xs: [<span class="tok-number">48</span>]<span class="tok-type">u8</span>, ys: [<span class="tok-number">48</span>]<span class="tok-type">u8</span>, endian: std.builtin.Endian) (NonCanonicalError \|\| EncodingError)!P384 {</span> <span class="line" id="L64"> <span class="tok-kw">const</span> x = <span class="tok-kw">try</span> Fe.fromBytes(xs, endian);</span> <span class="line" id="L65"> <span class="tok-kw">const</span> y = <span class="tok-kw">try</span> Fe.fromBytes(ys, endian);</span> <span class="line" id="L66"> <span class="tok-kw">return</span> fromAffineCoordinates(.{ .x = x, .y = y });</span> <span class="line" id="L67"> }</span> <span class="line" id="L68"></span> <span class="line" id="L69"> <span class="tok-comment">/// Recover the Y coordinate from the X coordinate.</span></span> <span class="line" id="L70"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">recoverY</span>(x: Fe, is_odd: <span class="tok-type">bool</span>) NotSquareError!Fe {</span> <span class="line" id="L71"> <span class="tok-kw">const</span> x3AxB = x.sq().mul(x).sub(x).sub(x).sub(x).add(B);</span> <span class="line" id="L72"> <span class="tok-kw">var</span> y = <span class="tok-kw">try</span> x3AxB.sqrt();</span> <span class="line" id="L73"> <span class="tok-kw">const</span> yn = y.neg();</span> <span class="line" id="L74"> y.cMov(yn, <span class="tok-builtin">@intFromBool</span>(is_odd) ^ <span class="tok-builtin">@intFromBool</span>(y.isOdd()));</span> <span class="line" id="L75"> <span class="tok-kw">return</span> y;</span> <span class="line" id="L76"> }</span> <span class="line" id="L77"></span> <span class="line" id="L78"> <span class="tok-comment">/// Deserialize a SEC1-encoded point.</span></span> <span class="line" id="L79"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromSec1</span>(s: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) (EncodingError \|\| NotSquareError \|\| NonCanonicalError)!P384 {</span> <span class="line" id="L80"> <span class="tok-kw">if</span> (s.len < <span class="tok-number">1</span>) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InvalidEncoding;</span> <span class="line" id="L81"> <span class="tok-kw">const</span> encoding_type = s[<span class="tok-number">0</span>];</span> <span class="line" id="L82"> <span class="tok-kw">const</span> encoded = s[<span class="tok-number">1</span>..];</span> <span class="line" id="L83"> <span class="tok-kw">switch</span> (encoding_type) {</span> <span class="line" id="L84"> <span class="tok-number">0</span> => {</span> <span class="line" id="L85"> <span class="tok-kw">if</span> (encoded.len != <span class="tok-number">0</span>) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InvalidEncoding;</span> <span class="line" id="L86"> <span class="tok-kw">return</span> P384.identityElement;</span> <span class="line" id="L87"> },</span> <span class="line" id="L88"> <span class="tok-number">2</span>, <span class="tok-number">3</span> => {</span> <span class="line" id="L89"> <span class="tok-kw">if</span> (encoded.len != <span class="tok-number">48</span>) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InvalidEncoding;</span> <span class="line" id="L90"> <span class="tok-kw">const</span> x = <span class="tok-kw">try</span> Fe.fromBytes(encoded[<span class="tok-number">0</span>..<span class="tok-number">48</span>]., .Big);</span> <span class="line" id="L91"> <span class="tok-kw">const</span> y_is_odd = (encoding_type == <span class="tok-number">3</span>);</span> <span class="line" id="L92"> <span class="tok-kw">const</span> y = <span class="tok-kw">try</span> recoverY(x, y_is_odd);</span> <span class="line" id="L93"> <span class="tok-kw">return</span> P384{ .x = x, .y = y };</span> <span class="line" id="L94"> },</span> <span class="line" id="L95"> <span class="tok-number">4</span> => {</span> <span class="line" id="L96"> <span class="tok-kw">if</span> (encoded.len != <span class="tok-number">96</span>) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InvalidEncoding;</span> <span class="line" id="L97"> <span class="tok-kw">const</span> x = <span class="tok-kw">try</span> Fe.fromBytes(encoded[<span class="tok-number">0</span>..<span class="tok-number">48</span>]., .Big);</span> <span class="line" id="L98"> <span class="tok-kw">const</span> y = <span class="tok-kw">try</span> Fe.fromBytes(encoded[<span class="tok-number">48</span>..<span class="tok-number">96</span>]., .Big);</span> <span class="line" id="L99"> <span class="tok-kw">return</span> P384.fromAffineCoordinates(.{ .x = x, .y = y });</span> <span class="line" id="L100"> },</span> <span class="line" id="L101"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InvalidEncoding,</span> <span class="line" id="L102"> }</span> <span class="line" id="L103"> }</span> <span class="line" id="L104"></span> <span class="line" id="L105"> <span class="tok-comment">/// Serialize a point using the compressed SEC-1 format.</span></span> <span class="line" id="L106"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toCompressedSec1</span>(p: P384) [<span class="tok-number">49</span>]<span class="tok-type">u8</span> {</span> <span class="line" id="L107"> <span class="tok-kw">var</span> out: [<span class="tok-number">49</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L108"> <span class="tok-kw">const</span> xy = p.affineCoordinates();</span> <span class="line" id="L109"> out[<span class="tok-number">0</span>] = <span class="tok-kw">if</span> (xy.y.isOdd()) <span class="tok-number">3</span> <span class="tok-kw">else</span> <span class="tok-number">2</span>;</span> <span class="line" id="L110"> out[<span class="tok-number">1</span>..]. = xy.x.toBytes(.Big);</span> <span class="line" id="L111"> <span class="tok-kw">return</span> out;</span> <span class="line" id="L112"> }</span> <span class="line" id="L113"></span> <span class="line" id="L114"> <span class="tok-comment">/// Serialize a point using the uncompressed SEC-1 format.</span></span> <span class="line" id="L115"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toUncompressedSec1</span>(p: P384) [<span class="tok-number">97</span>]<span class="tok-type">u8</span> {</span> <span class="line" id="L116"> <span class="tok-kw">var</span> out: [<span class="tok-number">97</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L117"> out[<span class="tok-number">0</span>] = <span class="tok-number">4</span>;</span> <span class="line" id="L118"> <span class="tok-kw">const</span> xy = p.affineCoordinates();</span> <span class="line" id="L119"> out[<span class="tok-number">1</span>..<span class="tok-number">49</span>].* = xy.x.toBytes(.Big);</span> <span class="line" id="L120"> out[<span class="tok-number">49</span>..<span class="tok-number">97</span>].* = xy.y.toBytes(.Big);</span> <span class="line" id="L121"> <span class="tok-kw">return</span> out;</span> <span class="line" id="L122"> }</span> <span class="line" id="L123"></span> <span class="line" id="L124"> <span class="tok-comment">/// Return a random point.</span></span> <span class="line" id="L125"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">random</span>() P384 {</span> <span class="line" id="L126"> <span class="tok-kw">const</span> n = scalar.random(.Little);</span> <span class="line" id="L127"> <span class="tok-kw">return</span> basePoint.mul(n, .Little) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L128"> }</span> <span class="line" id="L129"></span> <span class="line" id="L130"> <span class="tok-comment">/// Flip the sign of the X coordinate.</span></span> <span class="line" id="L131"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">neg</span>(p: P384) P384 {</span> <span class="line" id="L132"> <span class="tok-kw">return</span> .{ .x = p.x, .y = p.y.neg(), .z = p.z };</span> <span class="line" id="L133"> }</span> <span class="line" id="L134"></span> <span class="line" id="L135"> <span class="tok-comment">/// Double a P384 point.</span></span> <span class="line" id="L136"> <span class="tok-comment">// Algorithm 6 from https://eprint.iacr.org/2015/1060.pdf</span> </span> <span class="line" id="L137"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">dbl</span>(p: P384) P384 {</span> <span class="line" id="L138"> <span class="tok-kw">var</span> t0 = p.x.sq();</span> <span class="line" id="L139"> <span class="tok-kw">var</span> t1 = p.y.sq();</span> <span class="line" id="L140"> <span class="tok-kw">var</span> t2 = p.z.sq();</span> <span class="line" id="L141"> <span class="tok-kw">var</span> t3 = p.x.mul(p.y);</span> <span class="line" id="L142"> t3 = t3.dbl();</span> <span class="line" id="L143"> <span class="tok-kw">var</span> Z3 = p.x.mul(p.z);</span> <span class="line" id="L144"> Z3 = Z3.add(Z3);</span> <span class="line" id="L145"> <span class="tok-kw">var</span> Y3 = B.mul(t2);</span> <span class="line" id="L146"> Y3 = Y3.sub(Z3);</span> <span class="line" id="L147"> <span class="tok-kw">var</span> X3 = Y3.dbl();</span> <span class="line" id="L148"> Y3 = X3.add(Y3);</span> <span class="line" id="L149"> X3 = t1.sub(Y3);</span> <span class="line" id="L150"> Y3 = t1.add(Y3);</span> <span class="line" id="L151"> Y3 = X3.mul(Y3);</span> <span class="line" id="L152"> X3 = X3.mul(t3);</span> <span class="line" id="L153"> t3 = t2.dbl();</span> <span class="line" id="L154"> t2 = t2.add(t3);</span> <span class="line" id="L155"> Z3 = B.mul(Z3);</span> <span class="line" id="L156"> Z3 = Z3.sub(t2);</span> <span class="line" id="L157"> Z3 = Z3.sub(t0);</span> <span class="line" id="L158"> t3 = Z3.dbl();</span> <span class="line" id="L159"> Z3 = Z3.add(t3);</span> <span class="line" id="L160"> t3 = t0.dbl();</span> <span class="line" id="L161"> t0 = t3.add(t0);</span> <span class="line" id="L162"> t0 = t0.sub(t2);</span> <span class="line" id="L163"> t0 = t0.mul(Z3);</span> <span class="line" id="L164"> Y3 = Y3.add(t0);</span> <span class="line" id="L165"> t0 = p.y.mul(p.z);</span> <span class="line" id="L166"> t0 = t0.dbl();</span> <span class="line" id="L167"> Z3 = t0.mul(Z3);</span> <span class="line" id="L168"> X3 = X3.sub(Z3);</span> <span class="line" id="L169"> Z3 = t0.mul(t1);</span> <span class="line" id="L170"> Z3 = Z3.dbl().dbl();</span> <span class="line" id="L171"> <span class="tok-kw">return</span> .{</span> <span class="line" id="L172"> .x = X3,</span> <span class="line" id="L173"> .y = Y3,</span> <span class="line" id="L174"> .z = Z3,</span> <span class="line" id="L175"> };</span> <span class="line" id="L176"> }</span> <span class="line" id="L177"></span> <span class="line" id="L178"> <span class="tok-comment">/// Add P384 points, the second being specified using affine coordinates.</span></span> <span class="line" id="L179"> <span class="tok-comment">// Algorithm 5 from https://eprint.iacr.org/2015/1060.pdf</span> </span> <span class="line" id="L180"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">addMixed</span>(p: P384, q: AffineCoordinates) P384 {</span> <span class="line" id="L181"> <span class="tok-kw">var</span> t0 = p.x.mul(q.x);</span> <span class="line" id="L182"> <span class="tok-kw">var</span> t1 = p.y.mul(q.y);</span> <span class="line" id="L183"> <span class="tok-kw">var</span> t3 = q.x.add(q.y);</span> <span class="line" id="L184"> <span class="tok-kw">var</span> t4 = p.x.add(p.y);</span> <span class="line" id="L185"> t3 = t3.mul(t4);</span> <span class="line" id="L186"> t4 = t0.add(t1);</span> <span class="line" id="L187"> t3 = t3.sub(t4);</span> <span class="line" id="L188"> t4 = q.y.mul(p.z);</span> <span class="line" id="L189"> t4 = t4.add(p.y);</span> <span class="line" id="L190"> <span class="tok-kw">var</span> Y3 = q.x.mul(p.z);</span> <span class="line" id="L191"> Y3 = Y3.add(p.x);</span> <span class="line" id="L192"> <span class="tok-kw">var</span> Z3 = B.mul(p.z);</span> <span class="line" id="L193"> <span class="tok-kw">var</span> X3 = Y3.sub(Z3);</span> <span class="line" id="L194"> Z3 = X3.dbl();</span> <span class="line" id="L195"> X3 = X3.add(Z3);</span> <span class="line" id="L196"> Z3 = t1.sub(X3);</span> <span class="line" id="L197"> X3 = t1.add(X3);</span> <span class="line" id="L198"> Y3 = B.mul(Y3);</span> <span class="line" id="L199"> t1 = p.z.dbl();</span> <span class="line" id="L200"> <span class="tok-kw">var</span> t2 = t1.add(p.z);</span> <span class="line" id="L201"> Y3 = Y3.sub(t2);</span> <span class="line" id="L202"> Y3 = Y3.sub(t0);</span> <span class="line" id="L203"> t1 = Y3.dbl();</span> <span class="line" id="L204"> Y3 = t1.add(Y3);</span> <span class="line" id="L205"> t1 = t0.dbl();</span> <span class="line" id="L206"> t0 = t1.add(t0);</span> <span class="line" id="L207"> t0 = t0.sub(t2);</span> <span class="line" id="L208"> t1 = t4.mul(Y3);</span> <span class="line" id="L209"> t2 = t0.mul(Y3);</span> <span class="line" id="L210"> Y3 = X3.mul(Z3);</span> <span class="line" id="L211"> Y3 = Y3.add(t2);</span> <span class="line" id="L212"> X3 = t3.mul(X3);</span> <span class="line" id="L213"> X3 = X3.sub(t1);</span> <span class="line" id="L214"> Z3 = t4.mul(Z3);</span> <span class="line" id="L215"> t1 = t3.mul(t0);</span> <span class="line" id="L216"> Z3 = Z3.add(t1);</span> <span class="line" id="L217"> <span class="tok-kw">var</span> ret = P384{</span> <span class="line" id="L218"> .x = X3,</span> <span class="line" id="L219"> .y = Y3,</span> <span class="line" id="L220"> .z = Z3,</span> <span class="line" id="L221"> };</span> <span class="line" id="L222"> ret.cMov(p, <span class="tok-builtin">@intFromBool</span>(q.x.isZero()));</span> <span class="line" id="L223"> <span class="tok-kw">return</span> ret;</span> <span class="line" id="L224"> }</span> <span class="line" id="L225"></span> <span class="line" id="L226"> <span class="tok-comment">/// Add P384 points.</span></span> <span class="line" id="L227"> <span class="tok-comment">// Algorithm 4 from https://eprint.iacr.org/2015/1060.pdf</span> </span> <span class="line" id="L228"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">add</span>(p: P384, q: P384) P384 {</span> <span class="line" id="L229"> <span class="tok-kw">var</span> t0 = p.x.mul(q.x);</span> <span class="line" id="L230"> <span class="tok-kw">var</span> t1 = p.y.mul(q.y);</span> <span class="line" id="L231"> <span class="tok-kw">var</span> t2 = p.z.mul(q.z);</span> <span class="line" id="L232"> <span class="tok-kw">var</span> t3 = p.x.add(p.y);</span> <span class="line" id="L233"> <span class="tok-kw">var</span> t4 = q.x.add(q.y);</span> <span class="line" id="L234"> t3 = t3.mul(t4);</span> <span class="line" id="L235"> t4 = t0.add(t1);</span> <span class="line" id="L236"> t3 = t3.sub(t4);</span> <span class="line" id="L237"> t4 = p.y.add(p.z);</span> <span class="line" id="L238"> <span class="tok-kw">var</span> X3 = q.y.add(q.z);</span> <span class="line" id="L239"> t4 = t4.mul(X3);</span> <span class="line" id="L240"> X3 = t1.add(t2);</span> <span class="line" id="L241"> t4 = t4.sub(X3);</span> <span class="line" id="L242"> X3 = p.x.add(p.z);</span> <span class="line" id="L243"> <span class="tok-kw">var</span> Y3 = q.x.add(q.z);</span> <span class="line" id="L244"> X3 = X3.mul(Y3);</span> <span class="line" id="L245"> Y3 = t0.add(t2);</span> <span class="line" id="L246"> Y3 = X3.sub(Y3);</span> <span class="line" id="L247"> <span class="tok-kw">var</span> Z3 = B.mul(t2);</span> <span class="line" id="L248"> X3 = Y3.sub(Z3);</span> <span class="line" id="L249"> Z3 = X3.dbl();</span> <span class="line" id="L250"> X3 = X3.add(Z3);</span> <span class="line" id="L251"> Z3 = t1.sub(X3);</span> <span class="line" id="L252"> X3 = t1.add(X3);</span> <span class="line" id="L253"> Y3 = B.mul(Y3);</span> <span class="line" id="L254"> t1 = t2.dbl();</span> <span class="line" id="L255"> t2 = t1.add(t2);</span> <span class="line" id="L256"> Y3 = Y3.sub(t2);</span> <span class="line" id="L257"> Y3 = Y3.sub(t0);</span> <span class="line" id="L258"> t1 = Y3.dbl();</span> <span class="line" id="L259"> Y3 = t1.add(Y3);</span> <span class="line" id="L260"> t1 = t0.dbl();</span> <span class="line" id="L261"> t0 = t1.add(t0);</span> <span class="line" id="L262"> t0 = t0.sub(t2);</span> <span class="line" id="L263"> t1 = t4.mul(Y3);</span> <span class="line" id="L264"> t2 = t0.mul(Y3);</span> <span class="line" id="L265"> Y3 = X3.mul(Z3);</span> <span class="line" id="L266"> Y3 = Y3.add(t2);</span> <span class="line" id="L267"> X3 = t3.mul(X3);</span> <span class="line" id="L268"> X3 = X3.sub(t1);</span> <span class="line" id="L269"> Z3 = t4.mul(Z3);</span> <span class="line" id="L270"> t1 = t3.mul(t0);</span> <span class="line" id="L271"> Z3 = Z3.add(t1);</span> <span class="line" id="L272"> <span class="tok-kw">return</span> .{</span> <span class="line" id="L273"> .x = X3,</span> <span class="line" id="L274"> .y = Y3,</span> <span class="line" id="L275"> .z = Z3,</span> <span class="line" id="L276"> };</span> <span class="line" id="L277"> }</span> <span class="line" id="L278"></span> <span class="line" id="L279"> <span class="tok-comment">/// Subtract P384 points.</span></span> <span class="line" id="L280"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">sub</span>(p: P384, q: P384) P384 {</span> <span class="line" id="L281"> <span class="tok-kw">return</span> p.add(q.neg());</span> <span class="line" id="L282"> }</span> <span class="line" id="L283"></span> <span class="line" id="L284"> <span class="tok-comment">/// Subtract P384 points, the second being specified using affine coordinates.</span></span> <span class="line" id="L285"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">subMixed</span>(p: P384, q: AffineCoordinates) P384 {</span> <span class="line" id="L286"> <span class="tok-kw">return</span> p.addMixed(q.neg());</span> <span class="line" id="L287"> }</span> <span class="line" id="L288"></span> <span class="line" id="L289"> <span class="tok-comment">/// Return affine coordinates.</span></span> <span class="line" id="L290"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">affineCoordinates</span>(p: P384) AffineCoordinates {</span> <span class="line" id="L291"> <span class="tok-kw">const</span> affine_0 = <span class="tok-builtin">@intFromBool</span>(p.x.equivalent(AffineCoordinates.identityElement.x)) & (<span class="tok-builtin">@intFromBool</span>(p.y.isZero()) \| <span class="tok-builtin">@intFromBool</span>(p.y.equivalent(AffineCoordinates.identityElement.y)));</span> <span class="line" id="L292"> <span class="tok-kw">const</span> is_identity = <span class="tok-builtin">@intFromBool</span>(p.z.isZero()) \| affine_0;</span> <span class="line" id="L293"> <span class="tok-kw">const</span> zinv = p.z.invert();</span> <span class="line" id="L294"> <span class="tok-kw">var</span> ret = AffineCoordinates{</span> <span class="line" id="L295"> .x = p.x.mul(zinv),</span> <span class="line" id="L296"> .y = p.y.mul(zinv),</span> <span class="line" id="L297"> };</span> <span class="line" id="L298"> ret.cMov(AffineCoordinates.identityElement, is_identity);</span> <span class="line" id="L299"> <span class="tok-kw">return</span> ret;</span> <span class="line" id="L300"> }</span> <span class="line" id="L301"></span> <span class="line" id="L302"> <span class="tok-comment">/// Return true if both coordinate sets represent the same point.</span></span> <span class="line" id="L303"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">equivalent</span>(a: P384, b: P384) <span class="tok-type">bool</span> {</span> <span class="line" id="L304"> <span class="tok-kw">if</span> (a.sub(b).rejectIdentity()) {</span> <span class="line" id="L305"> <span class="tok-kw">return</span> <span class="tok-null">false</span>;</span> <span class="line" id="L306"> } <span class="tok-kw">else</span> \|_\| {</span> <span class="line" id="L307"> <span class="tok-kw">return</span> <span class="tok-null">true</span>;</span> <span class="line" id="L308"> }</span> <span class="line" id="L309"> }</span> <span class="line" id="L310"></span> <span class="line" id="L311"> <span class="tok-kw">fn</span> <span class="tok-fn">cMov</span>(p: P384, a: P384, c: <span class="tok-type">u1</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L312"> p.x.cMov(a.x, c);</span> <span class="line" id="L313"> p.y.cMov(a.y, c);</span> <span class="line" id="L314"> p.z.cMov(a.z, c);</span> <span class="line" id="L315"> }</span> <span class="line" id="L316"></span> <span class="line" id="L317"> <span class="tok-kw">fn</span> <span class="tok-fn">pcSelect</span>(<span class="tok-kw">comptime</span> n: <span class="tok-type">usize</span>, pc: <span class="tok-kw">const</span> [n]P384, b: <span class="tok-type">u8</span>) P384 {</span> <span class="line" id="L318"> <span class="tok-kw">var</span> t = P384.identityElement;</span> <span class="line" id="L319"> <span class="tok-kw">comptime</span> <span class="tok-kw">var</span> i: <span class="tok-type">u8</span> = <span class="tok-number">1</span>;</span> <span class="line" id="L320"> <span class="tok-kw">inline</span> <span class="tok-kw">while</span> (i < pc.len) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L321"> t.cMov(pc[i], <span class="tok-builtin">@as</span>(<span class="tok-type">u1</span>, <span class="tok-builtin">@truncate</span>((<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, b ^ i) -% <span class="tok-number">1</span>) >> <span class="tok-number">8</span>)));</span> <span class="line" id="L322"> }</span> <span class="line" id="L323"> <span class="tok-kw">return</span> t;</span> <span class="line" id="L324"> }</span> <span class="line" id="L325"></span> <span class="line" id="L326"> <span class="tok-kw">fn</span> <span class="tok-fn">slide</span>(s: [<span class="tok-number">48</span>]<span class="tok-type">u8</span>) [<span class="tok-number">2</span> * <span class="tok-number">48</span> + <span class="tok-number">1</span>]<span class="tok-type">i8</span> {</span> <span class="line" id="L327"> <span class="tok-kw">var</span> e: [<span class="tok-number">2</span> * <span class="tok-number">48</span> + <span class="tok-number">1</span>]<span class="tok-type">i8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L328"> <span class="tok-kw">for</span> (s, <span class="tok-number">0</span>..) \|x, i\| {</span> <span class="line" id="L329"> e[i * <span class="tok-number">2</span> + <span class="tok-number">0</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">i8</span>, <span class="tok-builtin">@as</span>(<span class="tok-type">u4</span>, <span class="tok-builtin">@truncate</span>(x)));</span> <span class="line" id="L330"> e[i * <span class="tok-number">2</span> + <span class="tok-number">1</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">i8</span>, <span class="tok-builtin">@as</span>(<span class="tok-type">u4</span>, <span class="tok-builtin">@truncate</span>(x >> <span class="tok-number">4</span>)));</span> <span class="line" id="L331"> }</span> <span class="line" id="L332"> <span class="tok-comment">// Now, e[0..63] is between 0 and 15, e[63] is between 0 and 7</span> </span> <span class="line" id="L333"> <span class="tok-kw">var</span> carry: <span class="tok-type">i8</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L334"> <span class="tok-kw">for</span> (e[<span class="tok-number">0</span>..<span class="tok-number">96</span>]) \|x\| {</span> <span class="line" id="L335"> x. += carry;</span> <span class="line" id="L336"> carry = (x.* + <span class="tok-number">8</span>) >> <span class="tok-number">4</span>;</span> <span class="line" id="L337"> x.* -= carry * <span class="tok-number">16</span>;</span> <span class="line" id="L338"> std.debug.assert(x.* >= -<span class="tok-number">8</span> <span class="tok-kw">and</span> x.* <= <span class="tok-number">8</span>);</span> <span class="line" id="L339"> }</span> <span class="line" id="L340"> e[<span class="tok-number">96</span>] = carry;</span> <span class="line" id="L341"> <span class="tok-comment">// Now, e[] is between -8 and 8, including e[64]</span> </span> <span class="line" id="L342"> std.debug.assert(carry >= -<span class="tok-number">8</span> <span class="tok-kw">and</span> carry <= <span class="tok-number">8</span>);</span> <span class="line" id="L343"> <span class="tok-kw">return</span> e;</span> <span class="line" id="L344"> }</span> <span class="line" id="L345"></span> <span class="line" id="L346"> <span class="tok-kw">fn</span> <span class="tok-fn">pcMul</span>(pc: <span class="tok-kw">const</span> [<span class="tok-number">9</span>]P384, s: [<span class="tok-number">48</span>]<span class="tok-type">u8</span>, <span class="tok-kw">comptime</span> vartime: <span class="tok-type">bool</span>) IdentityElementError!P384 {</span> <span class="line" id="L347"> std.debug.assert(vartime);</span> <span class="line" id="L348"> <span class="tok-kw">const</span> e = slide(s);</span> <span class="line" id="L349"> <span class="tok-kw">var</span> q = P384.identityElement;</span> <span class="line" id="L350"> <span class="tok-kw">var</span> pos = e.len - <span class="tok-number">1</span>;</span> <span class="line" id="L351"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) : (pos -= <span class="tok-number">1</span>) {</span> <span class="line" id="L352"> <span class="tok-kw">const</span> slot = e[pos];</span> <span class="line" id="L353"> <span class="tok-kw">if</span> (slot > <span class="tok-number">0</span>) {</span> <span class="line" id="L354"> q = q.add(pc[<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(slot))]);</span> <span class="line" id="L355"> } <span class="tok-kw">else</span> <span class="tok-kw">if</span> (slot < <span class="tok-number">0</span>) {</span> <span class="line" id="L356"> q = q.sub(pc[<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(-slot))]);</span> <span class="line" id="L357"> }</span> <span class="line" id="L358"> <span class="tok-kw">if</span> (pos == <span class="tok-number">0</span>) <span class="tok-kw">break</span>;</span> <span class="line" id="L359"> q = q.dbl().dbl().dbl().dbl();</span> <span class="line" id="L360"> }</span> <span class="line" id="L361"> <span class="tok-kw">try</span> q.rejectIdentity();</span> <span class="line" id="L362"> <span class="tok-kw">return</span> q;</span> <span class="line" id="L363"> }</span> <span class="line" id="L364"></span> <span class="line" id="L365"> <span class="tok-kw">fn</span> <span class="tok-fn">pcMul16</span>(pc: <span class="tok-kw">const</span> [<span class="tok-number">16</span>]P384, s: [<span class="tok-number">48</span>]<span class="tok-type">u8</span>, <span class="tok-kw">comptime</span> vartime: <span class="tok-type">bool</span>) IdentityElementError!P384 {</span> <span class="line" id="L366"> <span class="tok-kw">var</span> q = P384.identityElement;</span> <span class="line" id="L367"> <span class="tok-kw">var</span> pos: <span class="tok-type">usize</span> = <span class="tok-number">380</span>;</span> <span class="line" id="L368"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) : (pos -= <span class="tok-number">4</span>) {</span> <span class="line" id="L369"> <span class="tok-kw">const</span> slot = <span class="tok-builtin">@as</span>(<span class="tok-type">u4</span>, <span class="tok-builtin">@truncate</span>((s[pos >> <span class="tok-number">3</span>] >> <span class="tok-builtin">@as</span>(<span class="tok-type">u3</span>, <span class="tok-builtin">@truncate</span>(pos)))));</span> <span class="line" id="L370"> <span class="tok-kw">if</span> (vartime) {</span> <span class="line" id="L371"> <span class="tok-kw">if</span> (slot != <span class="tok-number">0</span>) {</span> <span class="line" id="L372"> q = q.add(pc[slot]);</span> <span class="line" id="L373"> }</span> <span class="line" id="L374"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L375"> q = q.add(pcSelect(<span class="tok-number">16</span>, pc, slot));</span> <span class="line" id="L376"> }</span> <span class="line" id="L377"> <span class="tok-kw">if</span> (pos == <span class="tok-number">0</span>) <span class="tok-kw">break</span>;</span> <span class="line" id="L378"> q = q.dbl().dbl().dbl().dbl();</span> <span class="line" id="L379"> }</span> <span class="line" id="L380"> <span class="tok-kw">try</span> q.rejectIdentity();</span> <span class="line" id="L381"> <span class="tok-kw">return</span> q;</span> <span class="line" id="L382"> }</span> <span class="line" id="L383"></span> <span class="line" id="L384"> <span class="tok-kw">fn</span> <span class="tok-fn">precompute</span>(p: P384, <span class="tok-kw">comptime</span> count: <span class="tok-type">usize</span>) [<span class="tok-number">1</span> + count]P384 {</span> <span class="line" id="L385"> <span class="tok-kw">var</span> pc: [<span class="tok-number">1</span> + count]P384 = <span class="tok-null">undefined</span>;</span> <span class="line" id="L386"> pc[<span class="tok-number">0</span>] = P384.identityElement;</span> <span class="line" id="L387"> pc[<span class="tok-number">1</span>] = p;</span> <span class="line" id="L388"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">2</span>;</span> <span class="line" id="L389"> <span class="tok-kw">while</span> (i <= count) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L390"> pc[i] = <span class="tok-kw">if</span> (i % <span class="tok-number">2</span> == <span class="tok-number">0</span>) pc[i / <span class="tok-number">2</span>].dbl() <span class="tok-kw">else</span> pc[i - <span class="tok-number">1</span>].add(p);</span> <span class="line" id="L391"> }</span> <span class="line" id="L392"> <span class="tok-kw">return</span> pc;</span> <span class="line" id="L393"> }</span> <span class="line" id="L394"></span> <span class="line" id="L395"> <span class="tok-kw">const</span> basePointPc = pc: {</span> <span class="line" id="L396"> <span class="tok-builtin">@setEvalBranchQuota</span>(<span class="tok-number">50000</span>);</span> <span class="line" id="L397"> <span class="tok-kw">break</span> :pc precompute(P384.basePoint, <span class="tok-number">15</span>);</span> <span class="line" id="L398"> };</span> <span class="line" id="L399"></span> <span class="line" id="L400"> <span class="tok-comment">/// Multiply an elliptic curve point by a scalar.</span></span> <span class="line" id="L401"> <span class="tok-comment">/// Return error.IdentityElement if the result is the identity element.</span></span> <span class="line" id="L402"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">mul</span>(p: P384, s_: [<span class="tok-number">48</span>]<span class="tok-type">u8</span>, endian: std.builtin.Endian) IdentityElementError!P384 {</span> <span class="line" id="L403"> <span class="tok-kw">const</span> s = <span class="tok-kw">if</span> (endian == .Little) s_ <span class="tok-kw">else</span> Fe.orderSwap(s_);</span> <span class="line" id="L404"> <span class="tok-kw">if</span> (p.is_base) {</span> <span class="line" id="L405"> <span class="tok-kw">return</span> pcMul16(&basePointPc, s, <span class="tok-null">false</span>);</span> <span class="line" id="L406"> }</span> <span class="line" id="L407"> <span class="tok-kw">try</span> p.rejectIdentity();</span> <span class="line" id="L408"> <span class="tok-kw">const</span> pc = precompute(p, <span class="tok-number">15</span>);</span> <span class="line" id="L409"> <span class="tok-kw">return</span> pcMul16(&pc, s, <span class="tok-null">false</span>);</span> <span class="line" id="L410"> }</span> <span class="line" id="L411"></span> <span class="line" id="L412"> <span class="tok-comment">/// Multiply an elliptic curve point by a PUBLIC* scalar IN VARIABLE TIME</span></span> <span class="line" id="L413"> <span class="tok-comment">/// This can be used for signature verification.</span></span> <span class="line" id="L414"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">mulPublic</span>(p: P384, s_: [<span class="tok-number">48</span>]<span class="tok-type">u8</span>, endian: std.builtin.Endian) IdentityElementError!P384 {</span> <span class="line" id="L415"> <span class="tok-kw">const</span> s = <span class="tok-kw">if</span> (endian == .Little) s_ <span class="tok-kw">else</span> Fe.orderSwap(s_);</span> <span class="line" id="L416"> <span class="tok-kw">if</span> (p.is_base) {</span> <span class="line" id="L417"> <span class="tok-kw">return</span> pcMul16(&basePointPc, s, <span class="tok-null">true</span>);</span> <span class="line" id="L418"> }</span> <span class="line" id="L419"> <span class="tok-kw">try</span> p.rejectIdentity();</span> <span class="line" id="L420"> <span class="tok-kw">const</span> pc = precompute(p, <span class="tok-number">8</span>);</span> <span class="line" id="L421"> <span class="tok-kw">return</span> pcMul(&pc, s, <span class="tok-null">true</span>);</span> <span class="line" id="L422"> }</span> <span class="line" id="L423"></span> <span class="line" id="L424"> <span class="tok-comment">/// Double-base multiplication of public parameters - Compute (p1s1)+(p2s2) IN VARIABLE TIME</span></span> <span class="line" id="L425"> <span class="tok-comment">/// This can be used for signature verification.</span></span> <span class="line" id="L426"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">mulDoubleBasePublic</span>(p1: P384, s1_: [<span class="tok-number">48</span>]<span class="tok-type">u8</span>, p2: P384, s2_: [<span class="tok-number">48</span>]<span class="tok-type">u8</span>, endian: std.builtin.Endian) IdentityElementError!P384 {</span> <span class="line" id="L427"> <span class="tok-kw">const</span> s1 = <span class="tok-kw">if</span> (endian == .Little) s1_ <span class="tok-kw">else</span> Fe.orderSwap(s1_);</span> <span class="line" id="L428"> <span class="tok-kw">const</span> s2 = <span class="tok-kw">if</span> (endian == .Little) s2_ <span class="tok-kw">else</span> Fe.orderSwap(s2_);</span> <span class="line" id="L429"> <span class="tok-kw">try</span> p1.rejectIdentity();</span> <span class="line" id="L430"> <span class="tok-kw">var</span> pc1_array: [<span class="tok-number">9</span>]P384 = <span class="tok-null">undefined</span>;</span> <span class="line" id="L431"> <span class="tok-kw">const</span> pc1 = <span class="tok-kw">if</span> (p1.is_base) basePointPc[<span class="tok-number">0</span>..<span class="tok-number">9</span>] <span class="tok-kw">else</span> pc: {</span> <span class="line" id="L432"> pc1_array = precompute(p1, <span class="tok-number">8</span>);</span> <span class="line" id="L433"> <span class="tok-kw">break</span> :pc &pc1_array;</span> <span class="line" id="L434"> };</span> <span class="line" id="L435"> <span class="tok-kw">try</span> p2.rejectIdentity();</span> <span class="line" id="L436"> <span class="tok-kw">var</span> pc2_array: [<span class="tok-number">9</span>]P384 = <span class="tok-null">undefined</span>;</span> <span class="line" id="L437"> <span class="tok-kw">const</span> pc2 = <span class="tok-kw">if</span> (p2.is_base) basePointPc[<span class="tok-number">0</span>..<span class="tok-number">9</span>] <span class="tok-kw">else</span> pc: {</span> <span class="line" id="L438"> pc2_array = precompute(p2, <span class="tok-number">8</span>);</span> <span class="line" id="L439"> <span class="tok-kw">break</span> :pc &pc2_array;</span> <span class="line" id="L440"> };</span> <span class="line" id="L441"> <span class="tok-kw">const</span> e1 = slide(s1);</span> <span class="line" id="L442"> <span class="tok-kw">const</span> e2 = slide(s2);</span> <span class="line" id="L443"> <span class="tok-kw">var</span> q = P384.identityElement;</span> <span class="line" id="L444"> <span class="tok-kw">var</span> pos: <span class="tok-type">usize</span> = <span class="tok-number">2</span> * <span class="tok-number">48</span>;</span> <span class="line" id="L445"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) : (pos -= <span class="tok-number">1</span>) {</span> <span class="line" id="L446"> <span class="tok-kw">const</span> slot1 = e1[pos];</span> <span class="line" id="L447"> <span class="tok-kw">if</span> (slot1 > <span class="tok-number">0</span>) {</span> <span class="line" id="L448"> q = q.add(pc1[<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(slot1))]);</span> <span class="line" id="L449"> } <span class="tok-kw">else</span> <span class="tok-kw">if</span> (slot1 < <span class="tok-number">0</span>) {</span> <span class="line" id="L450"> q = q.sub(pc1[<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(-slot1))]);</span> <span class="line" id="L451"> }</span> <span class="line" id="L452"> <span class="tok-kw">const</span> slot2 = e2[pos];</span> <span class="line" id="L453"> <span class="tok-kw">if</span> (slot2 > <span class="tok-number">0</span>) {</span> <span class="line" id="L454"> q = q.add(pc2[<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(slot2))]);</span> <span class="line" id="L455"> } <span class="tok-kw">else</span> <span class="tok-kw">if</span> (slot2 < <span class="tok-number">0</span>) {</span> <span class="line" id="L456"> q = q.sub(pc2[<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(-slot2))]);</span> <span class="line" id="L457"> }</span> <span class="line" id="L458"> <span class="tok-kw">if</span> (pos == <span class="tok-number">0</span>) <span class="tok-kw">break</span>;</span> <span class="line" id="L459"> q = q.dbl().dbl().dbl().dbl();</span> <span class="line" id="L460"> }</span> <span class="line" id="L461"> <span class="tok-kw">try</span> q.rejectIdentity();</span> <span class="line" id="L462"> <span class="tok-kw">return</span> q;</span> <span class="line" id="L463"> }</span> <span class="line" id="L464">};</span> <span class="line" id="L465"></span> <span class="line" id="L466"><span class="tok-comment">/// A point in affine coordinates.</span></span> <span class="line" id="L467"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> AffineCoordinates = <span class="tok-kw">struct</span> {</span> <span class="line" id="L468"> x: P384.Fe,</span> <span class="line" id="L469"> y: P384.Fe,</span> <span class="line" id="L470"></span> <span class="line" id="L471"> <span class="tok-comment">/// Identity element in affine coordinates.</span></span> <span class="line" id="L472"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> identityElement = AffineCoordinates{ .x = P384.identityElement.x, .y = P384.identityElement.y };</span> <span class="line" id="L473"></span> <span class="line" id="L474"> <span class="tok-kw">fn</span> <span class="tok-fn">cMov</span>(p: *AffineCoordinates, a: AffineCoordinates, c: <span class="tok-type">u1</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L475"> p.x.cMov(a.x, c);</span> <span class="line" id="L476"> p.y.cMov(a.y, c);</span> <span class="line" id="L477"> }</span> <span class="line" id="L478">};</span> <span class="line" id="L479"></span> <span class="line" id="L480"><span class="tok-kw">test</span> {</span> <span class="line" id="L481"> <span class="tok-kw">if</span> (<span class="tok-builtin">@import</span>(<span class="tok-str">"builtin"</span>).zig_backend == .stage2_c) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SkipZigTest;</span> <span class="line" id="L482"></span> <span class="line" id="L483"> _ = <span class="tok-builtin">@import</span>(<span class="tok-str">"tests/p384.zig"</span>);</span> <span class="line" id="L484">}</span> <span class="line" id="L485"></span> </code></pre></body> </html>
repos/yazap/docs/src/std/crypto	repos/yazap/docs/src/std/crypto/pcurves/common.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/pcurves/common.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> crypto = std.crypto;</span> <span class="line" id="L3"><span class="tok-kw">const</span> debug = std.debug;</span> <span class="line" id="L4"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L5"><span class="tok-kw">const</span> meta = std.meta;</span> <span class="line" id="L6"></span> <span class="line" id="L7"><span class="tok-kw">const</span> NonCanonicalError = crypto.errors.NonCanonicalError;</span> <span class="line" id="L8"><span class="tok-kw">const</span> NotSquareError = crypto.errors.NotSquareError;</span> <span class="line" id="L9"></span> <span class="line" id="L10"><span class="tok-comment">/// Parameters to create a finite field type.</span></span> <span class="line" id="L11"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> FieldParams = <span class="tok-kw">struct</span> {</span> <span class="line" id="L12"> fiat: <span class="tok-type">type</span>,</span> <span class="line" id="L13"> field_order: <span class="tok-type">comptime_int</span>,</span> <span class="line" id="L14"> field_bits: <span class="tok-type">comptime_int</span>,</span> <span class="line" id="L15"> saturated_bits: <span class="tok-type">comptime_int</span>,</span> <span class="line" id="L16"> encoded_length: <span class="tok-type">comptime_int</span>,</span> <span class="line" id="L17">};</span> <span class="line" id="L18"></span> <span class="line" id="L19"><span class="tok-comment">/// A field element, internally stored in Montgomery domain.</span></span> <span class="line" id="L20"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">Field</span>(<span class="tok-kw">comptime</span> params: FieldParams) <span class="tok-type">type</span> {</span> <span class="line" id="L21"> <span class="tok-kw">const</span> fiat = params.fiat;</span> <span class="line" id="L22"> <span class="tok-kw">const</span> MontgomeryDomainFieldElement = fiat.MontgomeryDomainFieldElement;</span> <span class="line" id="L23"> <span class="tok-kw">const</span> NonMontgomeryDomainFieldElement = fiat.NonMontgomeryDomainFieldElement;</span> <span class="line" id="L24"></span> <span class="line" id="L25"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L26"> <span class="tok-kw">const</span> Fe = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L27"></span> <span class="line" id="L28"> limbs: MontgomeryDomainFieldElement,</span> <span class="line" id="L29"></span> <span class="line" id="L30"> <span class="tok-comment">/// Field size.</span></span> <span class="line" id="L31"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> field_order = params.field_order;</span> <span class="line" id="L32"></span> <span class="line" id="L33"> <span class="tok-comment">/// Number of bits to represent the set of all elements.</span></span> <span class="line" id="L34"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> field_bits = params.field_bits;</span> <span class="line" id="L35"></span> <span class="line" id="L36"> <span class="tok-comment">/// Number of bits that can be saturated without overflowing.</span></span> <span class="line" id="L37"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> saturated_bits = params.saturated_bits;</span> <span class="line" id="L38"></span> <span class="line" id="L39"> <span class="tok-comment">/// Number of bytes required to encode an element.</span></span> <span class="line" id="L40"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> encoded_length = params.encoded_length;</span> <span class="line" id="L41"></span> <span class="line" id="L42"> <span class="tok-comment">/// Zero.</span></span> <span class="line" id="L43"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> zero: Fe = Fe{ .limbs = mem.zeroes(MontgomeryDomainFieldElement) };</span> <span class="line" id="L44"></span> <span class="line" id="L45"> <span class="tok-comment">/// One.</span></span> <span class="line" id="L46"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> one = one: {</span> <span class="line" id="L47"> <span class="tok-kw">var</span> fe: Fe = <span class="tok-null">undefined</span>;</span> <span class="line" id="L48"> fiat.setOne(&fe.limbs);</span> <span class="line" id="L49"> <span class="tok-kw">break</span> :one fe;</span> <span class="line" id="L50"> };</span> <span class="line" id="L51"></span> <span class="line" id="L52"> <span class="tok-comment">/// Reject non-canonical encodings of an element.</span></span> <span class="line" id="L53"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">rejectNonCanonical</span>(s_: [encoded_length]<span class="tok-type">u8</span>, endian: std.builtin.Endian) NonCanonicalError!<span class="tok-type">void</span> {</span> <span class="line" id="L54"> <span class="tok-kw">var</span> s = <span class="tok-kw">if</span> (endian == .Little) s_ <span class="tok-kw">else</span> orderSwap(s_);</span> <span class="line" id="L55"> <span class="tok-kw">const</span> field_order_s = <span class="tok-kw">comptime</span> fos: {</span> <span class="line" id="L56"> <span class="tok-kw">var</span> fos: [encoded_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L57"> mem.writeIntLittle(std.meta.Int(.unsigned, encoded_length * <span class="tok-number">8</span>), &fos, field_order);</span> <span class="line" id="L58"> <span class="tok-kw">break</span> :fos fos;</span> <span class="line" id="L59"> };</span> <span class="line" id="L60"> <span class="tok-kw">if</span> (crypto.utils.timingSafeCompare(<span class="tok-type">u8</span>, &s, &field_order_s, .Little) != .lt) {</span> <span class="line" id="L61"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.NonCanonical;</span> <span class="line" id="L62"> }</span> <span class="line" id="L63"> }</span> <span class="line" id="L64"></span> <span class="line" id="L65"> <span class="tok-comment">/// Swap the endianness of an encoded element.</span></span> <span class="line" id="L66"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">orderSwap</span>(s: [encoded_length]<span class="tok-type">u8</span>) [encoded_length]<span class="tok-type">u8</span> {</span> <span class="line" id="L67"> <span class="tok-kw">var</span> t = s;</span> <span class="line" id="L68"> <span class="tok-kw">for</span> (s, <span class="tok-number">0</span>..) \|x, i\| t[t.len - <span class="tok-number">1</span> - i] = x;</span> <span class="line" id="L69"> <span class="tok-kw">return</span> t;</span> <span class="line" id="L70"> }</span> <span class="line" id="L71"></span> <span class="line" id="L72"> <span class="tok-comment">/// Unpack a field element.</span></span> <span class="line" id="L73"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromBytes</span>(s_: [encoded_length]<span class="tok-type">u8</span>, endian: std.builtin.Endian) NonCanonicalError!Fe {</span> <span class="line" id="L74"> <span class="tok-kw">var</span> s = <span class="tok-kw">if</span> (endian == .Little) s_ <span class="tok-kw">else</span> orderSwap(s_);</span> <span class="line" id="L75"> <span class="tok-kw">try</span> rejectNonCanonical(s, .Little);</span> <span class="line" id="L76"> <span class="tok-kw">var</span> limbs_z: NonMontgomeryDomainFieldElement = <span class="tok-null">undefined</span>;</span> <span class="line" id="L77"> fiat.fromBytes(&limbs_z, s);</span> <span class="line" id="L78"> <span class="tok-kw">var</span> limbs: MontgomeryDomainFieldElement = <span class="tok-null">undefined</span>;</span> <span class="line" id="L79"> fiat.toMontgomery(&limbs, limbs_z);</span> <span class="line" id="L80"> <span class="tok-kw">return</span> Fe{ .limbs = limbs };</span> <span class="line" id="L81"> }</span> <span class="line" id="L82"></span> <span class="line" id="L83"> <span class="tok-comment">/// Pack a field element.</span></span> <span class="line" id="L84"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toBytes</span>(fe: Fe, endian: std.builtin.Endian) [encoded_length]<span class="tok-type">u8</span> {</span> <span class="line" id="L85"> <span class="tok-kw">var</span> limbs_z: NonMontgomeryDomainFieldElement = <span class="tok-null">undefined</span>;</span> <span class="line" id="L86"> fiat.fromMontgomery(&limbs_z, fe.limbs);</span> <span class="line" id="L87"> <span class="tok-kw">var</span> s: [encoded_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L88"> fiat.toBytes(&s, limbs_z);</span> <span class="line" id="L89"> <span class="tok-kw">return</span> <span class="tok-kw">if</span> (endian == .Little) s <span class="tok-kw">else</span> orderSwap(s);</span> <span class="line" id="L90"> }</span> <span class="line" id="L91"></span> <span class="line" id="L92"> <span class="tok-comment">/// Element as an integer.</span></span> <span class="line" id="L93"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> IntRepr = meta.Int(.unsigned, params.field_bits);</span> <span class="line" id="L94"></span> <span class="line" id="L95"> <span class="tok-comment">/// Create a field element from an integer.</span></span> <span class="line" id="L96"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromInt</span>(<span class="tok-kw">comptime</span> x: IntRepr) NonCanonicalError!Fe {</span> <span class="line" id="L97"> <span class="tok-kw">var</span> s: [encoded_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L98"> mem.writeIntLittle(IntRepr, &s, x);</span> <span class="line" id="L99"> <span class="tok-kw">return</span> fromBytes(s, .Little);</span> <span class="line" id="L100"> }</span> <span class="line" id="L101"></span> <span class="line" id="L102"> <span class="tok-comment">/// Return the field element as an integer.</span></span> <span class="line" id="L103"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toInt</span>(fe: Fe) IntRepr {</span> <span class="line" id="L104"> <span class="tok-kw">const</span> s = fe.toBytes(.Little);</span> <span class="line" id="L105"> <span class="tok-kw">return</span> mem.readIntLittle(IntRepr, &s);</span> <span class="line" id="L106"> }</span> <span class="line" id="L107"></span> <span class="line" id="L108"> <span class="tok-comment">/// Return true if the field element is zero.</span></span> <span class="line" id="L109"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">isZero</span>(fe: Fe) <span class="tok-type">bool</span> {</span> <span class="line" id="L110"> <span class="tok-kw">var</span> z: <span class="tok-builtin">@TypeOf</span>(fe.limbs[<span class="tok-number">0</span>]) = <span class="tok-null">undefined</span>;</span> <span class="line" id="L111"> fiat.nonzero(&z, fe.limbs);</span> <span class="line" id="L112"> <span class="tok-kw">return</span> z == <span class="tok-number">0</span>;</span> <span class="line" id="L113"> }</span> <span class="line" id="L114"></span> <span class="line" id="L115"> <span class="tok-comment">/// Return true if both field elements are equivalent.</span></span> <span class="line" id="L116"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">equivalent</span>(a: Fe, b: Fe) <span class="tok-type">bool</span> {</span> <span class="line" id="L117"> <span class="tok-kw">return</span> a.sub(b).isZero();</span> <span class="line" id="L118"> }</span> <span class="line" id="L119"></span> <span class="line" id="L120"> <span class="tok-comment">/// Return true if the element is odd.</span></span> <span class="line" id="L121"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">isOdd</span>(fe: Fe) <span class="tok-type">bool</span> {</span> <span class="line" id="L122"> <span class="tok-kw">const</span> s = fe.toBytes(.Little);</span> <span class="line" id="L123"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">u1</span>, <span class="tok-builtin">@truncate</span>(s[<span class="tok-number">0</span>])) != <span class="tok-number">0</span>;</span> <span class="line" id="L124"> }</span> <span class="line" id="L125"></span> <span class="line" id="L126"> <span class="tok-comment">/// Conditonally replace a field element with `a` if `c` is positive.</span></span> <span class="line" id="L127"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">cMov</span>(fe: Fe, a: Fe, c: <span class="tok-type">u1</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L128"> fiat.selectznz(&fe.limbs, c, fe.limbs, a.limbs);</span> <span class="line" id="L129"> }</span> <span class="line" id="L130"></span> <span class="line" id="L131"> <span class="tok-comment">/// Add field elements.</span></span> <span class="line" id="L132"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">add</span>(a: Fe, b: Fe) Fe {</span> <span class="line" id="L133"> <span class="tok-kw">var</span> fe: Fe = <span class="tok-null">undefined</span>;</span> <span class="line" id="L134"> fiat.add(&fe.limbs, a.limbs, b.limbs);</span> <span class="line" id="L135"> <span class="tok-kw">return</span> fe;</span> <span class="line" id="L136"> }</span> <span class="line" id="L137"></span> <span class="line" id="L138"> <span class="tok-comment">/// Subtract field elements.</span></span> <span class="line" id="L139"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">sub</span>(a: Fe, b: Fe) Fe {</span> <span class="line" id="L140"> <span class="tok-kw">var</span> fe: Fe = <span class="tok-null">undefined</span>;</span> <span class="line" id="L141"> fiat.sub(&fe.limbs, a.limbs, b.limbs);</span> <span class="line" id="L142"> <span class="tok-kw">return</span> fe;</span> <span class="line" id="L143"> }</span> <span class="line" id="L144"></span> <span class="line" id="L145"> <span class="tok-comment">/// Double a field element.</span></span> <span class="line" id="L146"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">dbl</span>(a: Fe) Fe {</span> <span class="line" id="L147"> <span class="tok-kw">var</span> fe: Fe = <span class="tok-null">undefined</span>;</span> <span class="line" id="L148"> fiat.add(&fe.limbs, a.limbs, a.limbs);</span> <span class="line" id="L149"> <span class="tok-kw">return</span> fe;</span> <span class="line" id="L150"> }</span> <span class="line" id="L151"></span> <span class="line" id="L152"> <span class="tok-comment">/// Multiply field elements.</span></span> <span class="line" id="L153"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">mul</span>(a: Fe, b: Fe) Fe {</span> <span class="line" id="L154"> <span class="tok-kw">var</span> fe: Fe = <span class="tok-null">undefined</span>;</span> <span class="line" id="L155"> fiat.mul(&fe.limbs, a.limbs, b.limbs);</span> <span class="line" id="L156"> <span class="tok-kw">return</span> fe;</span> <span class="line" id="L157"> }</span> <span class="line" id="L158"></span> <span class="line" id="L159"> <span class="tok-comment">/// Square a field element.</span></span> <span class="line" id="L160"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">sq</span>(a: Fe) Fe {</span> <span class="line" id="L161"> <span class="tok-kw">var</span> fe: Fe = <span class="tok-null">undefined</span>;</span> <span class="line" id="L162"> fiat.square(&fe.limbs, a.limbs);</span> <span class="line" id="L163"> <span class="tok-kw">return</span> fe;</span> <span class="line" id="L164"> }</span> <span class="line" id="L165"></span> <span class="line" id="L166"> <span class="tok-comment">/// Square a field element n times.</span></span> <span class="line" id="L167"> <span class="tok-kw">fn</span> <span class="tok-fn">sqn</span>(a: Fe, <span class="tok-kw">comptime</span> n: <span class="tok-type">comptime_int</span>) Fe {</span> <span class="line" id="L168"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L169"> <span class="tok-kw">var</span> fe = a;</span> <span class="line" id="L170"> <span class="tok-kw">while</span> (i < n) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L171"> fe = fe.sq();</span> <span class="line" id="L172"> }</span> <span class="line" id="L173"> <span class="tok-kw">return</span> fe;</span> <span class="line" id="L174"> }</span> <span class="line" id="L175"></span> <span class="line" id="L176"> <span class="tok-comment">/// Compute a^n.</span></span> <span class="line" id="L177"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">pow</span>(a: Fe, <span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>, <span class="tok-kw">comptime</span> n: T) Fe {</span> <span class="line" id="L178"> <span class="tok-kw">var</span> fe = one;</span> <span class="line" id="L179"> <span class="tok-kw">var</span> x: T = n;</span> <span class="line" id="L180"> <span class="tok-kw">var</span> t = a;</span> <span class="line" id="L181"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L182"> <span class="tok-kw">if</span> (<span class="tok-builtin">@as</span>(<span class="tok-type">u1</span>, <span class="tok-builtin">@truncate</span>(x)) != <span class="tok-number">0</span>) fe = fe.mul(t);</span> <span class="line" id="L183"> x >>= <span class="tok-number">1</span>;</span> <span class="line" id="L184"> <span class="tok-kw">if</span> (x == <span class="tok-number">0</span>) <span class="tok-kw">break</span>;</span> <span class="line" id="L185"> t = t.sq();</span> <span class="line" id="L186"> }</span> <span class="line" id="L187"> <span class="tok-kw">return</span> fe;</span> <span class="line" id="L188"> }</span> <span class="line" id="L189"></span> <span class="line" id="L190"> <span class="tok-comment">/// Negate a field element.</span></span> <span class="line" id="L191"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">neg</span>(a: Fe) Fe {</span> <span class="line" id="L192"> <span class="tok-kw">var</span> fe: Fe = <span class="tok-null">undefined</span>;</span> <span class="line" id="L193"> fiat.opp(&fe.limbs, a.limbs);</span> <span class="line" id="L194"> <span class="tok-kw">return</span> fe;</span> <span class="line" id="L195"> }</span> <span class="line" id="L196"></span> <span class="line" id="L197"> <span class="tok-comment">/// Return the inverse of a field element, or 0 if a=0.</span></span> <span class="line" id="L198"> <span class="tok-comment">// Field inversion from https://eprint.iacr.org/2021/549.pdf</span> </span> <span class="line" id="L199"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">invert</span>(a: Fe) Fe {</span> <span class="line" id="L200"> <span class="tok-kw">const</span> iterations = (<span class="tok-number">49</span> field_bits + <span class="tok-number">57</span>) / <span class="tok-number">17</span>;</span> <span class="line" id="L201"> <span class="tok-kw">const</span> Limbs = <span class="tok-builtin">@TypeOf</span>(a.limbs);</span> <span class="line" id="L202"> <span class="tok-kw">const</span> Word = <span class="tok-builtin">@TypeOf</span>(a.limbs[<span class="tok-number">0</span>]);</span> <span class="line" id="L203"> <span class="tok-kw">const</span> XLimbs = [a.limbs.len + <span class="tok-number">1</span>]Word;</span> <span class="line" id="L204"></span> <span class="line" id="L205"> <span class="tok-kw">var</span> d: Word = <span class="tok-number">1</span>;</span> <span class="line" id="L206"> <span class="tok-kw">var</span> f = <span class="tok-kw">comptime</span> blk: {</span> <span class="line" id="L207"> <span class="tok-kw">var</span> f: XLimbs = <span class="tok-null">undefined</span>;</span> <span class="line" id="L208"> fiat.msat(&f);</span> <span class="line" id="L209"> <span class="tok-kw">break</span> :blk f;</span> <span class="line" id="L210"> };</span> <span class="line" id="L211"> <span class="tok-kw">var</span> g: XLimbs = <span class="tok-null">undefined</span>;</span> <span class="line" id="L212"> fiat.fromMontgomery(g[<span class="tok-number">0</span>..a.limbs.len], a.limbs);</span> <span class="line" id="L213"> g[g.len - <span class="tok-number">1</span>] = <span class="tok-number">0</span>;</span> <span class="line" id="L214"></span> <span class="line" id="L215"> <span class="tok-kw">var</span> r = Fe.one.limbs;</span> <span class="line" id="L216"> <span class="tok-kw">var</span> v = Fe.zero.limbs;</span> <span class="line" id="L217"></span> <span class="line" id="L218"> <span class="tok-kw">var</span> out1: Word = <span class="tok-null">undefined</span>;</span> <span class="line" id="L219"> <span class="tok-kw">var</span> out2: XLimbs = <span class="tok-null">undefined</span>;</span> <span class="line" id="L220"> <span class="tok-kw">var</span> out3: XLimbs = <span class="tok-null">undefined</span>;</span> <span class="line" id="L221"> <span class="tok-kw">var</span> out4: Limbs = <span class="tok-null">undefined</span>;</span> <span class="line" id="L222"> <span class="tok-kw">var</span> out5: Limbs = <span class="tok-null">undefined</span>;</span> <span class="line" id="L223"></span> <span class="line" id="L224"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L225"> <span class="tok-kw">while</span> (i < iterations - iterations % <span class="tok-number">2</span>) : (i += <span class="tok-number">2</span>) {</span> <span class="line" id="L226"> fiat.divstep(&out1, &out2, &out3, &out4, &out5, d, f, g, v, r);</span> <span class="line" id="L227"> fiat.divstep(&d, &f, &g, &v, &r, out1, out2, out3, out4, out5);</span> <span class="line" id="L228"> }</span> <span class="line" id="L229"> <span class="tok-kw">if</span> (iterations % <span class="tok-number">2</span> != <span class="tok-number">0</span>) {</span> <span class="line" id="L230"> fiat.divstep(&out1, &out2, &out3, &out4, &out5, d, f, g, v, r);</span> <span class="line" id="L231"> v = out4;</span> <span class="line" id="L232"> f = out2;</span> <span class="line" id="L233"> }</span> <span class="line" id="L234"> <span class="tok-kw">var</span> v_opp: Limbs = <span class="tok-null">undefined</span>;</span> <span class="line" id="L235"> fiat.opp(&v_opp, v);</span> <span class="line" id="L236"> fiat.selectznz(&v, <span class="tok-builtin">@as</span>(<span class="tok-type">u1</span>, <span class="tok-builtin">@truncate</span>(f[f.len - <span class="tok-number">1</span>] >> (<span class="tok-builtin">@bitSizeOf</span>(Word) - <span class="tok-number">1</span>))), v, v_opp);</span> <span class="line" id="L237"></span> <span class="line" id="L238"> <span class="tok-kw">const</span> precomp = blk: {</span> <span class="line" id="L239"> <span class="tok-kw">var</span> precomp: Limbs = <span class="tok-null">undefined</span>;</span> <span class="line" id="L240"> fiat.divstepPrecomp(&precomp);</span> <span class="line" id="L241"> <span class="tok-kw">break</span> :blk precomp;</span> <span class="line" id="L242"> };</span> <span class="line" id="L243"> <span class="tok-kw">var</span> fe: Fe = <span class="tok-null">undefined</span>;</span> <span class="line" id="L244"> fiat.mul(&fe.limbs, v, precomp);</span> <span class="line" id="L245"> <span class="tok-kw">return</span> fe;</span> <span class="line" id="L246"> }</span> <span class="line" id="L247"></span> <span class="line" id="L248"> <span class="tok-comment">/// Return true if the field element is a square.</span></span> <span class="line" id="L249"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">isSquare</span>(x2: Fe) <span class="tok-type">bool</span> {</span> <span class="line" id="L250"> <span class="tok-kw">if</span> (field_order == <span class="tok-number">115792089210356248762697446949407573530086143415290314195533631308867097853951</span>) {</span> <span class="line" id="L251"> <span class="tok-kw">const</span> t110 = x2.mul(x2.sq()).sq();</span> <span class="line" id="L252"> <span class="tok-kw">const</span> t111 = x2.mul(t110);</span> <span class="line" id="L253"> <span class="tok-kw">const</span> t111111 = t111.mul(x2.mul(t110).sqn(<span class="tok-number">3</span>));</span> <span class="line" id="L254"> <span class="tok-kw">const</span> x15 = t111111.sqn(<span class="tok-number">6</span>).mul(t111111).sqn(<span class="tok-number">3</span>).mul(t111);</span> <span class="line" id="L255"> <span class="tok-kw">const</span> x16 = x15.sq().mul(x2);</span> <span class="line" id="L256"> <span class="tok-kw">const</span> x53 = x16.sqn(<span class="tok-number">16</span>).mul(x16).sqn(<span class="tok-number">15</span>);</span> <span class="line" id="L257"> <span class="tok-kw">const</span> x47 = x15.mul(x53);</span> <span class="line" id="L258"> <span class="tok-kw">const</span> ls = x47.mul(((x53.sqn(<span class="tok-number">17</span>).mul(x2)).sqn(<span class="tok-number">143</span>).mul(x47)).sqn(<span class="tok-number">47</span>)).sq().mul(x2);</span> <span class="line" id="L259"> <span class="tok-kw">return</span> ls.equivalent(Fe.one);</span> <span class="line" id="L260"> } <span class="tok-kw">else</span> <span class="tok-kw">if</span> (field_order == <span class="tok-number">39402006196394479212279040100143613805079739270465446667948293404245721771496870329047266088258938001861606973112319</span>) {</span> <span class="line" id="L261"> <span class="tok-kw">const</span> t111 = x2.mul(x2.mul(x2.sq()).sq());</span> <span class="line" id="L262"> <span class="tok-kw">const</span> t111111 = t111.mul(t111.sqn(<span class="tok-number">3</span>));</span> <span class="line" id="L263"> <span class="tok-kw">const</span> t1111110 = t111111.sq();</span> <span class="line" id="L264"> <span class="tok-kw">const</span> t1111111 = x2.mul(t1111110);</span> <span class="line" id="L265"> <span class="tok-kw">const</span> x12 = t1111110.sqn(<span class="tok-number">5</span>).mul(t111111);</span> <span class="line" id="L266"> <span class="tok-kw">const</span> x31 = x12.sqn(<span class="tok-number">12</span>).mul(x12).sqn(<span class="tok-number">7</span>).mul(t1111111);</span> <span class="line" id="L267"> <span class="tok-kw">const</span> x32 = x31.sq().mul(x2);</span> <span class="line" id="L268"> <span class="tok-kw">const</span> x63 = x32.sqn(<span class="tok-number">31</span>).mul(x31);</span> <span class="line" id="L269"> <span class="tok-kw">const</span> x126 = x63.sqn(<span class="tok-number">63</span>).mul(x63);</span> <span class="line" id="L270"> <span class="tok-kw">const</span> ls = x126.sqn(<span class="tok-number">126</span>).mul(x126).sqn(<span class="tok-number">3</span>).mul(t111).sqn(<span class="tok-number">33</span>).mul(x32).sqn(<span class="tok-number">95</span>).mul(x31);</span> <span class="line" id="L271"> <span class="tok-kw">return</span> ls.equivalent(Fe.one);</span> <span class="line" id="L272"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L273"> <span class="tok-kw">const</span> ls = x2.pow(std.meta.Int(.unsigned, field_bits), (field_order - <span class="tok-number">1</span>) / <span class="tok-number">2</span>); <span class="tok-comment">// Legendre symbol</span> </span> <span class="line" id="L274"> <span class="tok-kw">return</span> ls.equivalent(Fe.one);</span> <span class="line" id="L275"> }</span> <span class="line" id="L276"> }</span> <span class="line" id="L277"></span> <span class="line" id="L278"> <span class="tok-comment">// x=x2^((field_order+1)/4) w/ field order=3 (mod 4).</span> </span> <span class="line" id="L279"> <span class="tok-kw">fn</span> <span class="tok-fn">uncheckedSqrt</span>(x2: Fe) Fe {</span> <span class="line" id="L280"> <span class="tok-kw">comptime</span> debug.assert(field_order % <span class="tok-number">4</span> == <span class="tok-number">3</span>);</span> <span class="line" id="L281"> <span class="tok-kw">if</span> (field_order == <span class="tok-number">115792089210356248762697446949407573530086143415290314195533631308867097853951</span>) {</span> <span class="line" id="L282"> <span class="tok-kw">const</span> t11 = x2.mul(x2.sq());</span> <span class="line" id="L283"> <span class="tok-kw">const</span> t1111 = t11.mul(t11.sqn(<span class="tok-number">2</span>));</span> <span class="line" id="L284"> <span class="tok-kw">const</span> t11111111 = t1111.mul(t1111.sqn(<span class="tok-number">4</span>));</span> <span class="line" id="L285"> <span class="tok-kw">const</span> x16 = t11111111.sqn(<span class="tok-number">8</span>).mul(t11111111);</span> <span class="line" id="L286"> <span class="tok-kw">return</span> x16.sqn(<span class="tok-number">16</span>).mul(x16).sqn(<span class="tok-number">32</span>).mul(x2).sqn(<span class="tok-number">96</span>).mul(x2).sqn(<span class="tok-number">94</span>);</span> <span class="line" id="L287"> } <span class="tok-kw">else</span> <span class="tok-kw">if</span> (field_order == <span class="tok-number">39402006196394479212279040100143613805079739270465446667948293404245721771496870329047266088258938001861606973112319</span>) {</span> <span class="line" id="L288"> <span class="tok-kw">const</span> t111 = x2.mul(x2.mul(x2.sq()).sq());</span> <span class="line" id="L289"> <span class="tok-kw">const</span> t111111 = t111.mul(t111.sqn(<span class="tok-number">3</span>));</span> <span class="line" id="L290"> <span class="tok-kw">const</span> t1111110 = t111111.sq();</span> <span class="line" id="L291"> <span class="tok-kw">const</span> t1111111 = x2.mul(t1111110);</span> <span class="line" id="L292"> <span class="tok-kw">const</span> x12 = t1111110.sqn(<span class="tok-number">5</span>).mul(t111111);</span> <span class="line" id="L293"> <span class="tok-kw">const</span> x31 = x12.sqn(<span class="tok-number">12</span>).mul(x12).sqn(<span class="tok-number">7</span>).mul(t1111111);</span> <span class="line" id="L294"> <span class="tok-kw">const</span> x32 = x31.sq().mul(x2);</span> <span class="line" id="L295"> <span class="tok-kw">const</span> x63 = x32.sqn(<span class="tok-number">31</span>).mul(x31);</span> <span class="line" id="L296"> <span class="tok-kw">const</span> x126 = x63.sqn(<span class="tok-number">63</span>).mul(x63);</span> <span class="line" id="L297"> <span class="tok-kw">return</span> x126.sqn(<span class="tok-number">126</span>).mul(x126).sqn(<span class="tok-number">3</span>).mul(t111).sqn(<span class="tok-number">33</span>).mul(x32).sqn(<span class="tok-number">64</span>).mul(x2).sqn(<span class="tok-number">30</span>);</span> <span class="line" id="L298"> } <span class="tok-kw">else</span> <span class="tok-kw">if</span> (field_order == <span class="tok-number">115792089237316195423570985008687907853269984665640564039457584007908834671663</span>) {</span> <span class="line" id="L299"> <span class="tok-kw">const</span> t11 = x2.mul(x2.sq());</span> <span class="line" id="L300"> <span class="tok-kw">const</span> t1111 = t11.mul(t11.sqn(<span class="tok-number">2</span>));</span> <span class="line" id="L301"> <span class="tok-kw">const</span> t11111 = x2.mul(t1111.sq());</span> <span class="line" id="L302"> <span class="tok-kw">const</span> t1111111 = t11.mul(t11111.sqn(<span class="tok-number">2</span>));</span> <span class="line" id="L303"> <span class="tok-kw">const</span> x11 = t1111111.sqn(<span class="tok-number">4</span>).mul(t1111);</span> <span class="line" id="L304"> <span class="tok-kw">const</span> x22 = x11.sqn(<span class="tok-number">11</span>).mul(x11);</span> <span class="line" id="L305"> <span class="tok-kw">const</span> x27 = x22.sqn(<span class="tok-number">5</span>).mul(t11111);</span> <span class="line" id="L306"> <span class="tok-kw">const</span> x54 = x27.sqn(<span class="tok-number">27</span>).mul(x27);</span> <span class="line" id="L307"> <span class="tok-kw">const</span> x108 = x54.sqn(<span class="tok-number">54</span>).mul(x54);</span> <span class="line" id="L308"> <span class="tok-kw">return</span> x108.sqn(<span class="tok-number">108</span>).mul(x108).sqn(<span class="tok-number">7</span>).mul(t1111111).sqn(<span class="tok-number">23</span>).mul(x22).sqn(<span class="tok-number">6</span>).mul(t11).sqn(<span class="tok-number">2</span>);</span> <span class="line" id="L309"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L310"> <span class="tok-kw">return</span> x2.pow(std.meta.Int(.unsigned, field_bits), (field_order + <span class="tok-number">1</span>) / <span class="tok-number">4</span>);</span> <span class="line" id="L311"> }</span> <span class="line" id="L312"> }</span> <span class="line" id="L313"></span> <span class="line" id="L314"> <span class="tok-comment">/// Compute the square root of `x2`, returning `error.NotSquare` if `x2` was not a square.</span></span> <span class="line" id="L315"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">sqrt</span>(x2: Fe) NotSquareError!Fe {</span> <span class="line" id="L316"> <span class="tok-kw">const</span> x = x2.uncheckedSqrt();</span> <span class="line" id="L317"> <span class="tok-kw">if</span> (x.sq().equivalent(x2)) {</span> <span class="line" id="L318"> <span class="tok-kw">return</span> x;</span> <span class="line" id="L319"> }</span> <span class="line" id="L320"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.NotSquare;</span> <span class="line" id="L321"> }</span> <span class="line" id="L322"> };</span> <span class="line" id="L323">}</span> <span class="line" id="L324"></span> </code></pre></body> </html>
repos/yazap/docs/src/std/crypto	repos/yazap/docs/src/std/crypto/pcurves/secp256k1.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/pcurves/secp256k1.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> crypto = std.crypto;</span> <span class="line" id="L3"><span class="tok-kw">const</span> math = std.math;</span> <span class="line" id="L4"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L5"><span class="tok-kw">const</span> meta = std.meta;</span> <span class="line" id="L6"></span> <span class="line" id="L7"><span class="tok-kw">const</span> EncodingError = crypto.errors.EncodingError;</span> <span class="line" id="L8"><span class="tok-kw">const</span> IdentityElementError = crypto.errors.IdentityElementError;</span> <span class="line" id="L9"><span class="tok-kw">const</span> NonCanonicalError = crypto.errors.NonCanonicalError;</span> <span class="line" id="L10"><span class="tok-kw">const</span> NotSquareError = crypto.errors.NotSquareError;</span> <span class="line" id="L11"></span> <span class="line" id="L12"><span class="tok-comment">/// Group operations over secp256k1.</span></span> <span class="line" id="L13"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Secp256k1 = <span class="tok-kw">struct</span> {</span> <span class="line" id="L14"> <span class="tok-comment">/// The underlying prime field.</span></span> <span class="line" id="L15"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Fe = <span class="tok-builtin">@import</span>(<span class="tok-str">"secp256k1/field.zig"</span>).Fe;</span> <span class="line" id="L16"> <span class="tok-comment">/// Field arithmetic mod the order of the main subgroup.</span></span> <span class="line" id="L17"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> scalar = <span class="tok-builtin">@import</span>(<span class="tok-str">"secp256k1/scalar.zig"</span>);</span> <span class="line" id="L18"></span> <span class="line" id="L19"> x: Fe,</span> <span class="line" id="L20"> y: Fe,</span> <span class="line" id="L21"> z: Fe = Fe.one,</span> <span class="line" id="L22"></span> <span class="line" id="L23"> is_base: <span class="tok-type">bool</span> = <span class="tok-null">false</span>,</span> <span class="line" id="L24"></span> <span class="line" id="L25"> <span class="tok-comment">/// The secp256k1 base point.</span></span> <span class="line" id="L26"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> basePoint = Secp256k1{</span> <span class="line" id="L27"> .x = Fe.fromInt(<span class="tok-number">55066263022277343669578718895168534326250603453777594175500187360389116729240</span>) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L28"> .y = Fe.fromInt(<span class="tok-number">32670510020758816978083085130507043184471273380659243275938904335757337482424</span>) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L29"> .z = Fe.one,</span> <span class="line" id="L30"> .is_base = <span class="tok-null">true</span>,</span> <span class="line" id="L31"> };</span> <span class="line" id="L32"></span> <span class="line" id="L33"> <span class="tok-comment">/// The secp256k1 neutral element.</span></span> <span class="line" id="L34"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> identityElement = Secp256k1{ .x = Fe.zero, .y = Fe.one, .z = Fe.zero };</span> <span class="line" id="L35"></span> <span class="line" id="L36"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> B = Fe.fromInt(<span class="tok-number">7</span>) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L37"></span> <span class="line" id="L38"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Endormorphism = <span class="tok-kw">struct</span> {</span> <span class="line" id="L39"> <span class="tok-kw">const</span> lambda: <span class="tok-type">u256</span> = <span class="tok-number">37718080363155996902926221483475020450927657555482586988616620542887997980018</span>;</span> <span class="line" id="L40"> <span class="tok-kw">const</span> beta: <span class="tok-type">u256</span> = <span class="tok-number">55594575648329892869085402983802832744385952214688224221778511981742606582254</span>;</span> <span class="line" id="L41"></span> <span class="line" id="L42"> <span class="tok-kw">const</span> lambda_s = s: {</span> <span class="line" id="L43"> <span class="tok-kw">var</span> buf: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L44"> mem.writeIntLittle(<span class="tok-type">u256</span>, &buf, Endormorphism.lambda);</span> <span class="line" id="L45"> <span class="tok-kw">break</span> :s buf;</span> <span class="line" id="L46"> };</span> <span class="line" id="L47"></span> <span class="line" id="L48"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> SplitScalar = <span class="tok-kw">struct</span> {</span> <span class="line" id="L49"> r1: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>,</span> <span class="line" id="L50"> r2: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>,</span> <span class="line" id="L51"> };</span> <span class="line" id="L52"></span> <span class="line" id="L53"> <span class="tok-comment">/// Compute r1 and r2 so that k = r1 + r2lambda (mod L).</span></span> <span class="line" id="L54"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">splitScalar</span>(s: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>, endian: std.builtin.Endian) NonCanonicalError!SplitScalar {</span> <span class="line" id="L55"> <span class="tok-kw">const</span> b1_neg_s = <span class="tok-kw">comptime</span> s: {</span> <span class="line" id="L56"> <span class="tok-kw">var</span> buf: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L57"> mem.writeIntLittle(<span class="tok-type">u256</span>, &buf, <span class="tok-number">303414439467246543595250775667605759171</span>);</span> <span class="line" id="L58"> <span class="tok-kw">break</span> :s buf;</span> <span class="line" id="L59"> };</span> <span class="line" id="L60"> <span class="tok-kw">const</span> b2_neg_s = <span class="tok-kw">comptime</span> s: {</span> <span class="line" id="L61"> <span class="tok-kw">var</span> buf: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L62"> mem.writeIntLittle(<span class="tok-type">u256</span>, &buf, scalar.field_order - <span class="tok-number">64502973549206556628585045361533709077</span>);</span> <span class="line" id="L63"> <span class="tok-kw">break</span> :s buf;</span> <span class="line" id="L64"> };</span> <span class="line" id="L65"> <span class="tok-kw">const</span> k = mem.readInt(<span class="tok-type">u256</span>, &s, endian);</span> <span class="line" id="L66"></span> <span class="line" id="L67"> <span class="tok-kw">const</span> t1 = math.mulWide(<span class="tok-type">u256</span>, k, <span class="tok-number">21949224512762693861512883645436906316123769664773102907882521278123970637873</span>);</span> <span class="line" id="L68"> <span class="tok-kw">const</span> t2 = math.mulWide(<span class="tok-type">u256</span>, k, <span class="tok-number">103246583619904461035481197785446227098457807945486720222659797044629401272177</span>);</span> <span class="line" id="L69"></span> <span class="line" id="L70"> <span class="tok-kw">const</span> c1 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, <span class="tok-builtin">@truncate</span>(t1 >> <span class="tok-number">384</span>)) + <span class="tok-builtin">@as</span>(<span class="tok-type">u1</span>, <span class="tok-builtin">@truncate</span>(t1 >> <span class="tok-number">383</span>));</span> <span class="line" id="L71"> <span class="tok-kw">const</span> c2 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, <span class="tok-builtin">@truncate</span>(t2 >> <span class="tok-number">384</span>)) + <span class="tok-builtin">@as</span>(<span class="tok-type">u1</span>, <span class="tok-builtin">@truncate</span>(t2 >> <span class="tok-number">383</span>));</span> <span class="line" id="L72"></span> <span class="line" id="L73"> <span class="tok-kw">var</span> buf: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L74"></span> <span class="line" id="L75"> mem.writeIntLittle(<span class="tok-type">u256</span>, &buf, c1);</span> <span class="line" id="L76"> <span class="tok-kw">const</span> c1x = <span class="tok-kw">try</span> scalar.mul(buf, b1_neg_s, .Little);</span> <span class="line" id="L77"></span> <span class="line" id="L78"> mem.writeIntLittle(<span class="tok-type">u256</span>, &buf, c2);</span> <span class="line" id="L79"> <span class="tok-kw">const</span> c2x = <span class="tok-kw">try</span> scalar.mul(buf, b2_neg_s, .Little);</span> <span class="line" id="L80"></span> <span class="line" id="L81"> <span class="tok-kw">const</span> r2 = <span class="tok-kw">try</span> scalar.add(c1x, c2x, .Little);</span> <span class="line" id="L82"></span> <span class="line" id="L83"> <span class="tok-kw">var</span> r1 = <span class="tok-kw">try</span> scalar.mul(r2, lambda_s, .Little);</span> <span class="line" id="L84"> r1 = <span class="tok-kw">try</span> scalar.sub(s, r1, .Little);</span> <span class="line" id="L85"></span> <span class="line" id="L86"> <span class="tok-kw">return</span> SplitScalar{ .r1 = r1, .r2 = r2 };</span> <span class="line" id="L87"> }</span> <span class="line" id="L88"> };</span> <span class="line" id="L89"></span> <span class="line" id="L90"> <span class="tok-comment">/// Reject the neutral element.</span></span> <span class="line" id="L91"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">rejectIdentity</span>(p: Secp256k1) IdentityElementError!<span class="tok-type">void</span> {</span> <span class="line" id="L92"> <span class="tok-kw">const</span> affine_0 = <span class="tok-builtin">@intFromBool</span>(p.x.equivalent(AffineCoordinates.identityElement.x)) & (<span class="tok-builtin">@intFromBool</span>(p.y.isZero()) \| <span class="tok-builtin">@intFromBool</span>(p.y.equivalent(AffineCoordinates.identityElement.y)));</span> <span class="line" id="L93"> <span class="tok-kw">const</span> is_identity = <span class="tok-builtin">@intFromBool</span>(p.z.isZero()) \| affine_0;</span> <span class="line" id="L94"> <span class="tok-kw">if</span> (is_identity != <span class="tok-number">0</span>) {</span> <span class="line" id="L95"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.IdentityElement;</span> <span class="line" id="L96"> }</span> <span class="line" id="L97"> }</span> <span class="line" id="L98"></span> <span class="line" id="L99"> <span class="tok-comment">/// Create a point from affine coordinates after checking that they match the curve equation.</span></span> <span class="line" id="L100"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromAffineCoordinates</span>(p: AffineCoordinates) EncodingError!Secp256k1 {</span> <span class="line" id="L101"> <span class="tok-kw">const</span> x = p.x;</span> <span class="line" id="L102"> <span class="tok-kw">const</span> y = p.y;</span> <span class="line" id="L103"> <span class="tok-kw">const</span> x3B = x.sq().mul(x).add(B);</span> <span class="line" id="L104"> <span class="tok-kw">const</span> yy = y.sq();</span> <span class="line" id="L105"> <span class="tok-kw">const</span> on_curve = <span class="tok-builtin">@intFromBool</span>(x3B.equivalent(yy));</span> <span class="line" id="L106"> <span class="tok-kw">const</span> is_identity = <span class="tok-builtin">@intFromBool</span>(x.equivalent(AffineCoordinates.identityElement.x)) & <span class="tok-builtin">@intFromBool</span>(y.equivalent(AffineCoordinates.identityElement.y));</span> <span class="line" id="L107"> <span class="tok-kw">if</span> ((on_curve \| is_identity) == <span class="tok-number">0</span>) {</span> <span class="line" id="L108"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InvalidEncoding;</span> <span class="line" id="L109"> }</span> <span class="line" id="L110"> <span class="tok-kw">var</span> ret = Secp256k1{ .x = x, .y = y, .z = Fe.one };</span> <span class="line" id="L111"> ret.z.cMov(Secp256k1.identityElement.z, is_identity);</span> <span class="line" id="L112"> <span class="tok-kw">return</span> ret;</span> <span class="line" id="L113"> }</span> <span class="line" id="L114"></span> <span class="line" id="L115"> <span class="tok-comment">/// Create a point from serialized affine coordinates.</span></span> <span class="line" id="L116"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromSerializedAffineCoordinates</span>(xs: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>, ys: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>, endian: std.builtin.Endian) (NonCanonicalError \|\| EncodingError)!Secp256k1 {</span> <span class="line" id="L117"> <span class="tok-kw">const</span> x = <span class="tok-kw">try</span> Fe.fromBytes(xs, endian);</span> <span class="line" id="L118"> <span class="tok-kw">const</span> y = <span class="tok-kw">try</span> Fe.fromBytes(ys, endian);</span> <span class="line" id="L119"> <span class="tok-kw">return</span> fromAffineCoordinates(.{ .x = x, .y = y });</span> <span class="line" id="L120"> }</span> <span class="line" id="L121"></span> <span class="line" id="L122"> <span class="tok-comment">/// Recover the Y coordinate from the X coordinate.</span></span> <span class="line" id="L123"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">recoverY</span>(x: Fe, is_odd: <span class="tok-type">bool</span>) NotSquareError!Fe {</span> <span class="line" id="L124"> <span class="tok-kw">const</span> x3B = x.sq().mul(x).add(B);</span> <span class="line" id="L125"> <span class="tok-kw">var</span> y = <span class="tok-kw">try</span> x3B.sqrt();</span> <span class="line" id="L126"> <span class="tok-kw">const</span> yn = y.neg();</span> <span class="line" id="L127"> y.cMov(yn, <span class="tok-builtin">@intFromBool</span>(is_odd) ^ <span class="tok-builtin">@intFromBool</span>(y.isOdd()));</span> <span class="line" id="L128"> <span class="tok-kw">return</span> y;</span> <span class="line" id="L129"> }</span> <span class="line" id="L130"></span> <span class="line" id="L131"> <span class="tok-comment">/// Deserialize a SEC1-encoded point.</span></span> <span class="line" id="L132"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromSec1</span>(s: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) (EncodingError \|\| NotSquareError \|\| NonCanonicalError)!Secp256k1 {</span> <span class="line" id="L133"> <span class="tok-kw">if</span> (s.len < <span class="tok-number">1</span>) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InvalidEncoding;</span> <span class="line" id="L134"> <span class="tok-kw">const</span> encoding_type = s[<span class="tok-number">0</span>];</span> <span class="line" id="L135"> <span class="tok-kw">const</span> encoded = s[<span class="tok-number">1</span>..];</span> <span class="line" id="L136"> <span class="tok-kw">switch</span> (encoding_type) {</span> <span class="line" id="L137"> <span class="tok-number">0</span> => {</span> <span class="line" id="L138"> <span class="tok-kw">if</span> (encoded.len != <span class="tok-number">0</span>) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InvalidEncoding;</span> <span class="line" id="L139"> <span class="tok-kw">return</span> Secp256k1.identityElement;</span> <span class="line" id="L140"> },</span> <span class="line" id="L141"> <span class="tok-number">2</span>, <span class="tok-number">3</span> => {</span> <span class="line" id="L142"> <span class="tok-kw">if</span> (encoded.len != <span class="tok-number">32</span>) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InvalidEncoding;</span> <span class="line" id="L143"> <span class="tok-kw">const</span> x = <span class="tok-kw">try</span> Fe.fromBytes(encoded[<span class="tok-number">0</span>..<span class="tok-number">32</span>]., .Big);</span> <span class="line" id="L144"> <span class="tok-kw">const</span> y_is_odd = (encoding_type == <span class="tok-number">3</span>);</span> <span class="line" id="L145"> <span class="tok-kw">const</span> y = <span class="tok-kw">try</span> recoverY(x, y_is_odd);</span> <span class="line" id="L146"> <span class="tok-kw">return</span> Secp256k1{ .x = x, .y = y };</span> <span class="line" id="L147"> },</span> <span class="line" id="L148"> <span class="tok-number">4</span> => {</span> <span class="line" id="L149"> <span class="tok-kw">if</span> (encoded.len != <span class="tok-number">64</span>) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InvalidEncoding;</span> <span class="line" id="L150"> <span class="tok-kw">const</span> x = <span class="tok-kw">try</span> Fe.fromBytes(encoded[<span class="tok-number">0</span>..<span class="tok-number">32</span>]., .Big);</span> <span class="line" id="L151"> <span class="tok-kw">const</span> y = <span class="tok-kw">try</span> Fe.fromBytes(encoded[<span class="tok-number">32</span>..<span class="tok-number">64</span>]., .Big);</span> <span class="line" id="L152"> <span class="tok-kw">return</span> Secp256k1.fromAffineCoordinates(.{ .x = x, .y = y });</span> <span class="line" id="L153"> },</span> <span class="line" id="L154"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InvalidEncoding,</span> <span class="line" id="L155"> }</span> <span class="line" id="L156"> }</span> <span class="line" id="L157"></span> <span class="line" id="L158"> <span class="tok-comment">/// Serialize a point using the compressed SEC-1 format.</span></span> <span class="line" id="L159"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toCompressedSec1</span>(p: Secp256k1) [<span class="tok-number">33</span>]<span class="tok-type">u8</span> {</span> <span class="line" id="L160"> <span class="tok-kw">var</span> out: [<span class="tok-number">33</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L161"> <span class="tok-kw">const</span> xy = p.affineCoordinates();</span> <span class="line" id="L162"> out[<span class="tok-number">0</span>] = <span class="tok-kw">if</span> (xy.y.isOdd()) <span class="tok-number">3</span> <span class="tok-kw">else</span> <span class="tok-number">2</span>;</span> <span class="line" id="L163"> out[<span class="tok-number">1</span>..].* = xy.x.toBytes(.Big);</span> <span class="line" id="L164"> <span class="tok-kw">return</span> out;</span> <span class="line" id="L165"> }</span> <span class="line" id="L166"></span> <span class="line" id="L167"> <span class="tok-comment">/// Serialize a point using the uncompressed SEC-1 format.</span></span> <span class="line" id="L168"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toUncompressedSec1</span>(p: Secp256k1) [<span class="tok-number">65</span>]<span class="tok-type">u8</span> {</span> <span class="line" id="L169"> <span class="tok-kw">var</span> out: [<span class="tok-number">65</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L170"> out[<span class="tok-number">0</span>] = <span class="tok-number">4</span>;</span> <span class="line" id="L171"> <span class="tok-kw">const</span> xy = p.affineCoordinates();</span> <span class="line" id="L172"> out[<span class="tok-number">1</span>..<span class="tok-number">33</span>].* = xy.x.toBytes(.Big);</span> <span class="line" id="L173"> out[<span class="tok-number">33</span>..<span class="tok-number">65</span>].* = xy.y.toBytes(.Big);</span> <span class="line" id="L174"> <span class="tok-kw">return</span> out;</span> <span class="line" id="L175"> }</span> <span class="line" id="L176"></span> <span class="line" id="L177"> <span class="tok-comment">/// Return a random point.</span></span> <span class="line" id="L178"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">random</span>() Secp256k1 {</span> <span class="line" id="L179"> <span class="tok-kw">const</span> n = scalar.random(.Little);</span> <span class="line" id="L180"> <span class="tok-kw">return</span> basePoint.mul(n, .Little) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L181"> }</span> <span class="line" id="L182"></span> <span class="line" id="L183"> <span class="tok-comment">/// Flip the sign of the X coordinate.</span></span> <span class="line" id="L184"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">neg</span>(p: Secp256k1) Secp256k1 {</span> <span class="line" id="L185"> <span class="tok-kw">return</span> .{ .x = p.x, .y = p.y.neg(), .z = p.z };</span> <span class="line" id="L186"> }</span> <span class="line" id="L187"></span> <span class="line" id="L188"> <span class="tok-comment">/// Double a secp256k1 point.</span></span> <span class="line" id="L189"> <span class="tok-comment">// Algorithm 9 from https://eprint.iacr.org/2015/1060.pdf</span> </span> <span class="line" id="L190"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">dbl</span>(p: Secp256k1) Secp256k1 {</span> <span class="line" id="L191"> <span class="tok-kw">var</span> t0 = p.y.sq();</span> <span class="line" id="L192"> <span class="tok-kw">var</span> Z3 = t0.dbl();</span> <span class="line" id="L193"> Z3 = Z3.dbl();</span> <span class="line" id="L194"> Z3 = Z3.dbl();</span> <span class="line" id="L195"> <span class="tok-kw">var</span> t1 = p.y.mul(p.z);</span> <span class="line" id="L196"> <span class="tok-kw">var</span> t2 = p.z.sq();</span> <span class="line" id="L197"> <span class="tok-comment">// b3 = (2^2)^2 + 2^2 + 1</span> </span> <span class="line" id="L198"> <span class="tok-kw">const</span> t2_4 = t2.dbl().dbl();</span> <span class="line" id="L199"> t2 = t2_4.dbl().dbl().add(t2_4).add(t2);</span> <span class="line" id="L200"> <span class="tok-kw">var</span> X3 = t2.mul(Z3);</span> <span class="line" id="L201"> <span class="tok-kw">var</span> Y3 = t0.add(t2);</span> <span class="line" id="L202"> Z3 = t1.mul(Z3);</span> <span class="line" id="L203"> t1 = t2.dbl();</span> <span class="line" id="L204"> t2 = t1.add(t2);</span> <span class="line" id="L205"> t0 = t0.sub(t2);</span> <span class="line" id="L206"> Y3 = t0.mul(Y3);</span> <span class="line" id="L207"> Y3 = X3.add(Y3);</span> <span class="line" id="L208"> t1 = p.x.mul(p.y);</span> <span class="line" id="L209"> X3 = t0.mul(t1);</span> <span class="line" id="L210"> X3 = X3.dbl();</span> <span class="line" id="L211"> <span class="tok-kw">return</span> .{</span> <span class="line" id="L212"> .x = X3,</span> <span class="line" id="L213"> .y = Y3,</span> <span class="line" id="L214"> .z = Z3,</span> <span class="line" id="L215"> };</span> <span class="line" id="L216"> }</span> <span class="line" id="L217"></span> <span class="line" id="L218"> <span class="tok-comment">/// Add secp256k1 points, the second being specified using affine coordinates.</span></span> <span class="line" id="L219"> <span class="tok-comment">// Algorithm 8 from https://eprint.iacr.org/2015/1060.pdf</span> </span> <span class="line" id="L220"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">addMixed</span>(p: Secp256k1, q: AffineCoordinates) Secp256k1 {</span> <span class="line" id="L221"> <span class="tok-kw">var</span> t0 = p.x.mul(q.x);</span> <span class="line" id="L222"> <span class="tok-kw">var</span> t1 = p.y.mul(q.y);</span> <span class="line" id="L223"> <span class="tok-kw">var</span> t3 = q.x.add(q.y);</span> <span class="line" id="L224"> <span class="tok-kw">var</span> t4 = p.x.add(p.y1);</span> <span class="line" id="L225"> t3 = t3.mul(t4);</span> <span class="line" id="L226"> t4 = t0.add(t1);</span> <span class="line" id="L227"> t3 = t3.sub(t4);</span> <span class="line" id="L228"> t4 = q.y.mul(p.z);</span> <span class="line" id="L229"> t4 = t4.add(p.y);</span> <span class="line" id="L230"> <span class="tok-kw">var</span> Y3 = q.x.mul(p.z);</span> <span class="line" id="L231"> Y3 = Y3.add(p.x);</span> <span class="line" id="L232"> <span class="tok-kw">var</span> X3 = t0.dbl();</span> <span class="line" id="L233"> t0 = X3.add(t0);</span> <span class="line" id="L234"> <span class="tok-comment">// b3 = (2^2)^2 + 2^2 + 1</span> </span> <span class="line" id="L235"> <span class="tok-kw">const</span> t2_4 = p.z.dbl().dbl();</span> <span class="line" id="L236"> <span class="tok-kw">var</span> t2 = t2_4.dbl().dbl().add(t2_4).add(p.z);</span> <span class="line" id="L237"> <span class="tok-kw">var</span> Z3 = t1.add(t2);</span> <span class="line" id="L238"> t1 = t1.sub(t2);</span> <span class="line" id="L239"> <span class="tok-kw">const</span> Y3_4 = Y3.dbl().dbl();</span> <span class="line" id="L240"> Y3 = Y3_4.dbl().dbl().add(Y3_4).add(Y3);</span> <span class="line" id="L241"> X3 = t4.mul(Y3);</span> <span class="line" id="L242"> t2 = t3.mul(t1);</span> <span class="line" id="L243"> X3 = t2.sub(X3);</span> <span class="line" id="L244"> Y3 = Y3.mul(t0);</span> <span class="line" id="L245"> t1 = t1.mul(Z3);</span> <span class="line" id="L246"> Y3 = t1.add(Y3);</span> <span class="line" id="L247"> t0 = t0.mul(t3);</span> <span class="line" id="L248"> Z3 = Z3.mul(t4);</span> <span class="line" id="L249"> Z3 = Z3.add(t0);</span> <span class="line" id="L250"></span> <span class="line" id="L251"> <span class="tok-kw">var</span> ret = Secp256k1{</span> <span class="line" id="L252"> .x = X3,</span> <span class="line" id="L253"> .y = Y3,</span> <span class="line" id="L254"> .z = Z3,</span> <span class="line" id="L255"> };</span> <span class="line" id="L256"> ret.cMov(p, <span class="tok-builtin">@intFromBool</span>(q.x.isZero()));</span> <span class="line" id="L257"> <span class="tok-kw">return</span> ret;</span> <span class="line" id="L258"> }</span> <span class="line" id="L259"></span> <span class="line" id="L260"> <span class="tok-comment">/// Add secp256k1 points.</span></span> <span class="line" id="L261"> <span class="tok-comment">// Algorithm 7 from https://eprint.iacr.org/2015/1060.pdf</span> </span> <span class="line" id="L262"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">add</span>(p: Secp256k1, q: Secp256k1) Secp256k1 {</span> <span class="line" id="L263"> <span class="tok-kw">var</span> t0 = p.x.mul(q.x);</span> <span class="line" id="L264"> <span class="tok-kw">var</span> t1 = p.y.mul(q.y);</span> <span class="line" id="L265"> <span class="tok-kw">var</span> t2 = p.z.mul(q.z);</span> <span class="line" id="L266"> <span class="tok-kw">var</span> t3 = p.x.add(p.y);</span> <span class="line" id="L267"> <span class="tok-kw">var</span> t4 = q.x.add(q.y);</span> <span class="line" id="L268"> t3 = t3.mul(t4);</span> <span class="line" id="L269"> t4 = t0.add(t1);</span> <span class="line" id="L270"> t3 = t3.sub(t4);</span> <span class="line" id="L271"> t4 = p.y.add(p.z);</span> <span class="line" id="L272"> <span class="tok-kw">var</span> X3 = q.y.add(q.z);</span> <span class="line" id="L273"> t4 = t4.mul(X3);</span> <span class="line" id="L274"> X3 = t1.add(t2);</span> <span class="line" id="L275"> t4 = t4.sub(X3);</span> <span class="line" id="L276"> X3 = p.x.add(p.z);</span> <span class="line" id="L277"> <span class="tok-kw">var</span> Y3 = q.x.add(q.z);</span> <span class="line" id="L278"> X3 = X3.mul(Y3);</span> <span class="line" id="L279"> Y3 = t0.add(t2);</span> <span class="line" id="L280"> Y3 = X3.sub(Y3);</span> <span class="line" id="L281"> X3 = t0.dbl();</span> <span class="line" id="L282"> t0 = X3.add(t0);</span> <span class="line" id="L283"> <span class="tok-comment">// b3 = (2^2)^2 + 2^2 + 1</span> </span> <span class="line" id="L284"> <span class="tok-kw">const</span> t2_4 = t2.dbl().dbl();</span> <span class="line" id="L285"> t2 = t2_4.dbl().dbl().add(t2_4).add(t2);</span> <span class="line" id="L286"> <span class="tok-kw">var</span> Z3 = t1.add(t2);</span> <span class="line" id="L287"> t1 = t1.sub(t2);</span> <span class="line" id="L288"> <span class="tok-kw">const</span> Y3_4 = Y3.dbl().dbl();</span> <span class="line" id="L289"> Y3 = Y3_4.dbl().dbl().add(Y3_4).add(Y3);</span> <span class="line" id="L290"> X3 = t4.mul(Y3);</span> <span class="line" id="L291"> t2 = t3.mul(t1);</span> <span class="line" id="L292"> X3 = t2.sub(X3);</span> <span class="line" id="L293"> Y3 = Y3.mul(t0);</span> <span class="line" id="L294"> t1 = t1.mul(Z3);</span> <span class="line" id="L295"> Y3 = t1.add(Y3);</span> <span class="line" id="L296"> t0 = t0.mul(t3);</span> <span class="line" id="L297"> Z3 = Z3.mul(t4);</span> <span class="line" id="L298"> Z3 = Z3.add(t0);</span> <span class="line" id="L299"></span> <span class="line" id="L300"> <span class="tok-kw">return</span> .{</span> <span class="line" id="L301"> .x = X3,</span> <span class="line" id="L302"> .y = Y3,</span> <span class="line" id="L303"> .z = Z3,</span> <span class="line" id="L304"> };</span> <span class="line" id="L305"> }</span> <span class="line" id="L306"></span> <span class="line" id="L307"> <span class="tok-comment">/// Subtract secp256k1 points.</span></span> <span class="line" id="L308"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">sub</span>(p: Secp256k1, q: Secp256k1) Secp256k1 {</span> <span class="line" id="L309"> <span class="tok-kw">return</span> p.add(q.neg());</span> <span class="line" id="L310"> }</span> <span class="line" id="L311"></span> <span class="line" id="L312"> <span class="tok-comment">/// Subtract secp256k1 points, the second being specified using affine coordinates.</span></span> <span class="line" id="L313"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">subMixed</span>(p: Secp256k1, q: AffineCoordinates) Secp256k1 {</span> <span class="line" id="L314"> <span class="tok-kw">return</span> p.addMixed(q.neg());</span> <span class="line" id="L315"> }</span> <span class="line" id="L316"></span> <span class="line" id="L317"> <span class="tok-comment">/// Return affine coordinates.</span></span> <span class="line" id="L318"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">affineCoordinates</span>(p: Secp256k1) AffineCoordinates {</span> <span class="line" id="L319"> <span class="tok-kw">const</span> affine_0 = <span class="tok-builtin">@intFromBool</span>(p.x.equivalent(AffineCoordinates.identityElement.x)) & (<span class="tok-builtin">@intFromBool</span>(p.y.isZero()) \| <span class="tok-builtin">@intFromBool</span>(p.y.equivalent(AffineCoordinates.identityElement.y)));</span> <span class="line" id="L320"> <span class="tok-kw">const</span> is_identity = <span class="tok-builtin">@intFromBool</span>(p.z.isZero()) \| affine_0;</span> <span class="line" id="L321"> <span class="tok-kw">const</span> zinv = p.z.invert();</span> <span class="line" id="L322"> <span class="tok-kw">var</span> ret = AffineCoordinates{</span> <span class="line" id="L323"> .x = p.x.mul(zinv),</span> <span class="line" id="L324"> .y = p.y.mul(zinv),</span> <span class="line" id="L325"> };</span> <span class="line" id="L326"> ret.cMov(AffineCoordinates.identityElement, is_identity);</span> <span class="line" id="L327"> <span class="tok-kw">return</span> ret;</span> <span class="line" id="L328"> }</span> <span class="line" id="L329"></span> <span class="line" id="L330"> <span class="tok-comment">/// Return true if both coordinate sets represent the same point.</span></span> <span class="line" id="L331"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">equivalent</span>(a: Secp256k1, b: Secp256k1) <span class="tok-type">bool</span> {</span> <span class="line" id="L332"> <span class="tok-kw">if</span> (a.sub(b).rejectIdentity()) {</span> <span class="line" id="L333"> <span class="tok-kw">return</span> <span class="tok-null">false</span>;</span> <span class="line" id="L334"> } <span class="tok-kw">else</span> \|_\| {</span> <span class="line" id="L335"> <span class="tok-kw">return</span> <span class="tok-null">true</span>;</span> <span class="line" id="L336"> }</span> <span class="line" id="L337"> }</span> <span class="line" id="L338"></span> <span class="line" id="L339"> <span class="tok-kw">fn</span> <span class="tok-fn">cMov</span>(p: Secp256k1, a: Secp256k1, c: <span class="tok-type">u1</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L340"> p.x.cMov(a.x, c);</span> <span class="line" id="L341"> p.y.cMov(a.y, c);</span> <span class="line" id="L342"> p.z.cMov(a.z, c);</span> <span class="line" id="L343"> }</span> <span class="line" id="L344"></span> <span class="line" id="L345"> <span class="tok-kw">fn</span> <span class="tok-fn">pcSelect</span>(<span class="tok-kw">comptime</span> n: <span class="tok-type">usize</span>, pc: <span class="tok-kw">const</span> [n]Secp256k1, b: <span class="tok-type">u8</span>) Secp256k1 {</span> <span class="line" id="L346"> <span class="tok-kw">var</span> t = Secp256k1.identityElement;</span> <span class="line" id="L347"> <span class="tok-kw">comptime</span> <span class="tok-kw">var</span> i: <span class="tok-type">u8</span> = <span class="tok-number">1</span>;</span> <span class="line" id="L348"> <span class="tok-kw">inline</span> <span class="tok-kw">while</span> (i < pc.len) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L349"> t.cMov(pc[i], <span class="tok-builtin">@as</span>(<span class="tok-type">u1</span>, <span class="tok-builtin">@truncate</span>((<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, b ^ i) -% <span class="tok-number">1</span>) >> <span class="tok-number">8</span>)));</span> <span class="line" id="L350"> }</span> <span class="line" id="L351"> <span class="tok-kw">return</span> t;</span> <span class="line" id="L352"> }</span> <span class="line" id="L353"></span> <span class="line" id="L354"> <span class="tok-kw">fn</span> <span class="tok-fn">slide</span>(s: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>) [<span class="tok-number">2</span> * <span class="tok-number">32</span> + <span class="tok-number">1</span>]<span class="tok-type">i8</span> {</span> <span class="line" id="L355"> <span class="tok-kw">var</span> e: [<span class="tok-number">2</span> * <span class="tok-number">32</span> + <span class="tok-number">1</span>]<span class="tok-type">i8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L356"> <span class="tok-kw">for</span> (s, <span class="tok-number">0</span>..) \|x, i\| {</span> <span class="line" id="L357"> e[i * <span class="tok-number">2</span> + <span class="tok-number">0</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">i8</span>, <span class="tok-builtin">@as</span>(<span class="tok-type">u4</span>, <span class="tok-builtin">@truncate</span>(x)));</span> <span class="line" id="L358"> e[i * <span class="tok-number">2</span> + <span class="tok-number">1</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">i8</span>, <span class="tok-builtin">@as</span>(<span class="tok-type">u4</span>, <span class="tok-builtin">@truncate</span>(x >> <span class="tok-number">4</span>)));</span> <span class="line" id="L359"> }</span> <span class="line" id="L360"> <span class="tok-comment">// Now, e[0..63] is between 0 and 15, e[63] is between 0 and 7</span> </span> <span class="line" id="L361"> <span class="tok-kw">var</span> carry: <span class="tok-type">i8</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L362"> <span class="tok-kw">for</span> (e[<span class="tok-number">0</span>..<span class="tok-number">64</span>]) \|x\| {</span> <span class="line" id="L363"> x. += carry;</span> <span class="line" id="L364"> carry = (x.* + <span class="tok-number">8</span>) >> <span class="tok-number">4</span>;</span> <span class="line" id="L365"> x.* -= carry * <span class="tok-number">16</span>;</span> <span class="line" id="L366"> std.debug.assert(x.* >= -<span class="tok-number">8</span> <span class="tok-kw">and</span> x.* <= <span class="tok-number">8</span>);</span> <span class="line" id="L367"> }</span> <span class="line" id="L368"> e[<span class="tok-number">64</span>] = carry;</span> <span class="line" id="L369"> <span class="tok-comment">// Now, e[] is between -8 and 8, including e[64]</span> </span> <span class="line" id="L370"> std.debug.assert(carry >= -<span class="tok-number">8</span> <span class="tok-kw">and</span> carry <= <span class="tok-number">8</span>);</span> <span class="line" id="L371"> <span class="tok-kw">return</span> e;</span> <span class="line" id="L372"> }</span> <span class="line" id="L373"></span> <span class="line" id="L374"> <span class="tok-kw">fn</span> <span class="tok-fn">pcMul</span>(pc: <span class="tok-kw">const</span> [<span class="tok-number">9</span>]Secp256k1, s: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>, <span class="tok-kw">comptime</span> vartime: <span class="tok-type">bool</span>) IdentityElementError!Secp256k1 {</span> <span class="line" id="L375"> std.debug.assert(vartime);</span> <span class="line" id="L376"> <span class="tok-kw">const</span> e = slide(s);</span> <span class="line" id="L377"> <span class="tok-kw">var</span> q = Secp256k1.identityElement;</span> <span class="line" id="L378"> <span class="tok-kw">var</span> pos = e.len - <span class="tok-number">1</span>;</span> <span class="line" id="L379"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) : (pos -= <span class="tok-number">1</span>) {</span> <span class="line" id="L380"> <span class="tok-kw">const</span> slot = e[pos];</span> <span class="line" id="L381"> <span class="tok-kw">if</span> (slot > <span class="tok-number">0</span>) {</span> <span class="line" id="L382"> q = q.add(pc[<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(slot))]);</span> <span class="line" id="L383"> } <span class="tok-kw">else</span> <span class="tok-kw">if</span> (slot < <span class="tok-number">0</span>) {</span> <span class="line" id="L384"> q = q.sub(pc[<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(-slot))]);</span> <span class="line" id="L385"> }</span> <span class="line" id="L386"> <span class="tok-kw">if</span> (pos == <span class="tok-number">0</span>) <span class="tok-kw">break</span>;</span> <span class="line" id="L387"> q = q.dbl().dbl().dbl().dbl();</span> <span class="line" id="L388"> }</span> <span class="line" id="L389"> <span class="tok-kw">try</span> q.rejectIdentity();</span> <span class="line" id="L390"> <span class="tok-kw">return</span> q;</span> <span class="line" id="L391"> }</span> <span class="line" id="L392"></span> <span class="line" id="L393"> <span class="tok-kw">fn</span> <span class="tok-fn">pcMul16</span>(pc: <span class="tok-kw">const</span> [<span class="tok-number">16</span>]Secp256k1, s: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>, <span class="tok-kw">comptime</span> vartime: <span class="tok-type">bool</span>) IdentityElementError!Secp256k1 {</span> <span class="line" id="L394"> <span class="tok-kw">var</span> q = Secp256k1.identityElement;</span> <span class="line" id="L395"> <span class="tok-kw">var</span> pos: <span class="tok-type">usize</span> = <span class="tok-number">252</span>;</span> <span class="line" id="L396"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) : (pos -= <span class="tok-number">4</span>) {</span> <span class="line" id="L397"> <span class="tok-kw">const</span> slot = <span class="tok-builtin">@as</span>(<span class="tok-type">u4</span>, <span class="tok-builtin">@truncate</span>((s[pos >> <span class="tok-number">3</span>] >> <span class="tok-builtin">@as</span>(<span class="tok-type">u3</span>, <span class="tok-builtin">@truncate</span>(pos)))));</span> <span class="line" id="L398"> <span class="tok-kw">if</span> (vartime) {</span> <span class="line" id="L399"> <span class="tok-kw">if</span> (slot != <span class="tok-number">0</span>) {</span> <span class="line" id="L400"> q = q.add(pc[slot]);</span> <span class="line" id="L401"> }</span> <span class="line" id="L402"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L403"> q = q.add(pcSelect(<span class="tok-number">16</span>, pc, slot));</span> <span class="line" id="L404"> }</span> <span class="line" id="L405"> <span class="tok-kw">if</span> (pos == <span class="tok-number">0</span>) <span class="tok-kw">break</span>;</span> <span class="line" id="L406"> q = q.dbl().dbl().dbl().dbl();</span> <span class="line" id="L407"> }</span> <span class="line" id="L408"> <span class="tok-kw">try</span> q.rejectIdentity();</span> <span class="line" id="L409"> <span class="tok-kw">return</span> q;</span> <span class="line" id="L410"> }</span> <span class="line" id="L411"></span> <span class="line" id="L412"> <span class="tok-kw">fn</span> <span class="tok-fn">precompute</span>(p: Secp256k1, <span class="tok-kw">comptime</span> count: <span class="tok-type">usize</span>) [<span class="tok-number">1</span> + count]Secp256k1 {</span> <span class="line" id="L413"> <span class="tok-kw">var</span> pc: [<span class="tok-number">1</span> + count]Secp256k1 = <span class="tok-null">undefined</span>;</span> <span class="line" id="L414"> pc[<span class="tok-number">0</span>] = Secp256k1.identityElement;</span> <span class="line" id="L415"> pc[<span class="tok-number">1</span>] = p;</span> <span class="line" id="L416"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">2</span>;</span> <span class="line" id="L417"> <span class="tok-kw">while</span> (i <= count) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L418"> pc[i] = <span class="tok-kw">if</span> (i % <span class="tok-number">2</span> == <span class="tok-number">0</span>) pc[i / <span class="tok-number">2</span>].dbl() <span class="tok-kw">else</span> pc[i - <span class="tok-number">1</span>].add(p);</span> <span class="line" id="L419"> }</span> <span class="line" id="L420"> <span class="tok-kw">return</span> pc;</span> <span class="line" id="L421"> }</span> <span class="line" id="L422"></span> <span class="line" id="L423"> <span class="tok-kw">const</span> basePointPc = pc: {</span> <span class="line" id="L424"> <span class="tok-builtin">@setEvalBranchQuota</span>(<span class="tok-number">50000</span>);</span> <span class="line" id="L425"> <span class="tok-kw">break</span> :pc precompute(Secp256k1.basePoint, <span class="tok-number">15</span>);</span> <span class="line" id="L426"> };</span> <span class="line" id="L427"></span> <span class="line" id="L428"> <span class="tok-comment">/// Multiply an elliptic curve point by a scalar.</span></span> <span class="line" id="L429"> <span class="tok-comment">/// Return error.IdentityElement if the result is the identity element.</span></span> <span class="line" id="L430"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">mul</span>(p: Secp256k1, s_: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>, endian: std.builtin.Endian) IdentityElementError!Secp256k1 {</span> <span class="line" id="L431"> <span class="tok-kw">const</span> s = <span class="tok-kw">if</span> (endian == .Little) s_ <span class="tok-kw">else</span> Fe.orderSwap(s_);</span> <span class="line" id="L432"> <span class="tok-kw">if</span> (p.is_base) {</span> <span class="line" id="L433"> <span class="tok-kw">return</span> pcMul16(&basePointPc, s, <span class="tok-null">false</span>);</span> <span class="line" id="L434"> }</span> <span class="line" id="L435"> <span class="tok-kw">try</span> p.rejectIdentity();</span> <span class="line" id="L436"> <span class="tok-kw">const</span> pc = precompute(p, <span class="tok-number">15</span>);</span> <span class="line" id="L437"> <span class="tok-kw">return</span> pcMul16(&pc, s, <span class="tok-null">false</span>);</span> <span class="line" id="L438"> }</span> <span class="line" id="L439"></span> <span class="line" id="L440"> <span class="tok-comment">/// Multiply an elliptic curve point by a PUBLIC* scalar IN VARIABLE TIME</span></span> <span class="line" id="L441"> <span class="tok-comment">/// This can be used for signature verification.</span></span> <span class="line" id="L442"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">mulPublic</span>(p: Secp256k1, s_: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>, endian: std.builtin.Endian) (IdentityElementError \|\| NonCanonicalError)!Secp256k1 {</span> <span class="line" id="L443"> <span class="tok-kw">const</span> s = <span class="tok-kw">if</span> (endian == .Little) s_ <span class="tok-kw">else</span> Fe.orderSwap(s_);</span> <span class="line" id="L444"> <span class="tok-kw">const</span> zero = <span class="tok-kw">comptime</span> scalar.Scalar.zero.toBytes(.Little);</span> <span class="line" id="L445"> <span class="tok-kw">if</span> (mem.eql(<span class="tok-type">u8</span>, &zero, &s)) {</span> <span class="line" id="L446"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.IdentityElement;</span> <span class="line" id="L447"> }</span> <span class="line" id="L448"> <span class="tok-kw">const</span> pc = precompute(p, <span class="tok-number">8</span>);</span> <span class="line" id="L449"> <span class="tok-kw">var</span> lambda_p = <span class="tok-kw">try</span> pcMul(&pc, Endormorphism.lambda_s, <span class="tok-null">true</span>);</span> <span class="line" id="L450"> <span class="tok-kw">var</span> split_scalar = <span class="tok-kw">try</span> Endormorphism.splitScalar(s, .Little);</span> <span class="line" id="L451"> <span class="tok-kw">var</span> px = p;</span> <span class="line" id="L452"></span> <span class="line" id="L453"> <span class="tok-comment">// If a key is negative, flip the sign to keep it half-sized,</span> </span> <span class="line" id="L454"> <span class="tok-comment">// and flip the sign of the Y point coordinate to compensate.</span> </span> <span class="line" id="L455"> <span class="tok-kw">if</span> (split_scalar.r1[split_scalar.r1.len / <span class="tok-number">2</span>] != <span class="tok-number">0</span>) {</span> <span class="line" id="L456"> split_scalar.r1 = scalar.neg(split_scalar.r1, .Little) <span class="tok-kw">catch</span> zero;</span> <span class="line" id="L457"> px = px.neg();</span> <span class="line" id="L458"> }</span> <span class="line" id="L459"> <span class="tok-kw">if</span> (split_scalar.r2[split_scalar.r2.len / <span class="tok-number">2</span>] != <span class="tok-number">0</span>) {</span> <span class="line" id="L460"> split_scalar.r2 = scalar.neg(split_scalar.r2, .Little) <span class="tok-kw">catch</span> zero;</span> <span class="line" id="L461"> lambda_p = lambda_p.neg();</span> <span class="line" id="L462"> }</span> <span class="line" id="L463"> <span class="tok-kw">return</span> mulDoubleBasePublicEndo(px, split_scalar.r1, lambda_p, split_scalar.r2);</span> <span class="line" id="L464"> }</span> <span class="line" id="L465"></span> <span class="line" id="L466"> <span class="tok-comment">// Half-size double-base public multiplication when using the curve endomorphism.</span> </span> <span class="line" id="L467"> <span class="tok-comment">// Scalars must be in little-endian.</span> </span> <span class="line" id="L468"> <span class="tok-comment">// The second point is unlikely to be the generator, so don't even try to use the comptime table for it.</span> </span> <span class="line" id="L469"> <span class="tok-kw">fn</span> <span class="tok-fn">mulDoubleBasePublicEndo</span>(p1: Secp256k1, s1: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>, p2: Secp256k1, s2: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>) IdentityElementError!Secp256k1 {</span> <span class="line" id="L470"> <span class="tok-kw">var</span> pc1_array: [<span class="tok-number">9</span>]Secp256k1 = <span class="tok-null">undefined</span>;</span> <span class="line" id="L471"> <span class="tok-kw">const</span> pc1 = <span class="tok-kw">if</span> (p1.is_base) basePointPc[<span class="tok-number">0</span>..<span class="tok-number">9</span>] <span class="tok-kw">else</span> pc: {</span> <span class="line" id="L472"> pc1_array = precompute(p1, <span class="tok-number">8</span>);</span> <span class="line" id="L473"> <span class="tok-kw">break</span> :pc &pc1_array;</span> <span class="line" id="L474"> };</span> <span class="line" id="L475"> <span class="tok-kw">const</span> pc2 = precompute(p2, <span class="tok-number">8</span>);</span> <span class="line" id="L476"> std.debug.assert(s1[s1.len / <span class="tok-number">2</span>] == <span class="tok-number">0</span>);</span> <span class="line" id="L477"> std.debug.assert(s2[s2.len / <span class="tok-number">2</span>] == <span class="tok-number">0</span>);</span> <span class="line" id="L478"> <span class="tok-kw">const</span> e1 = slide(s1);</span> <span class="line" id="L479"> <span class="tok-kw">const</span> e2 = slide(s2);</span> <span class="line" id="L480"> <span class="tok-kw">var</span> q = Secp256k1.identityElement;</span> <span class="line" id="L481"> <span class="tok-kw">var</span> pos: <span class="tok-type">usize</span> = <span class="tok-number">2</span> * <span class="tok-number">32</span> / <span class="tok-number">2</span>; <span class="tok-comment">// second half is all zero</span> </span> <span class="line" id="L482"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) : (pos -= <span class="tok-number">1</span>) {</span> <span class="line" id="L483"> <span class="tok-kw">const</span> slot1 = e1[pos];</span> <span class="line" id="L484"> <span class="tok-kw">if</span> (slot1 > <span class="tok-number">0</span>) {</span> <span class="line" id="L485"> q = q.add(pc1[<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(slot1))]);</span> <span class="line" id="L486"> } <span class="tok-kw">else</span> <span class="tok-kw">if</span> (slot1 < <span class="tok-number">0</span>) {</span> <span class="line" id="L487"> q = q.sub(pc1[<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(-slot1))]);</span> <span class="line" id="L488"> }</span> <span class="line" id="L489"> <span class="tok-kw">const</span> slot2 = e2[pos];</span> <span class="line" id="L490"> <span class="tok-kw">if</span> (slot2 > <span class="tok-number">0</span>) {</span> <span class="line" id="L491"> q = q.add(pc2[<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(slot2))]);</span> <span class="line" id="L492"> } <span class="tok-kw">else</span> <span class="tok-kw">if</span> (slot2 < <span class="tok-number">0</span>) {</span> <span class="line" id="L493"> q = q.sub(pc2[<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(-slot2))]);</span> <span class="line" id="L494"> }</span> <span class="line" id="L495"> <span class="tok-kw">if</span> (pos == <span class="tok-number">0</span>) <span class="tok-kw">break</span>;</span> <span class="line" id="L496"> q = q.dbl().dbl().dbl().dbl();</span> <span class="line" id="L497"> }</span> <span class="line" id="L498"> <span class="tok-kw">try</span> q.rejectIdentity();</span> <span class="line" id="L499"> <span class="tok-kw">return</span> q;</span> <span class="line" id="L500"> }</span> <span class="line" id="L501"></span> <span class="line" id="L502"> <span class="tok-comment">/// Double-base multiplication of public parameters - Compute (p1s1)+(p2s2) IN VARIABLE TIME</span></span> <span class="line" id="L503"> <span class="tok-comment">/// This can be used for signature verification.</span></span> <span class="line" id="L504"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">mulDoubleBasePublic</span>(p1: Secp256k1, s1_: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>, p2: Secp256k1, s2_: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>, endian: std.builtin.Endian) IdentityElementError!Secp256k1 {</span> <span class="line" id="L505"> <span class="tok-kw">const</span> s1 = <span class="tok-kw">if</span> (endian == .Little) s1_ <span class="tok-kw">else</span> Fe.orderSwap(s1_);</span> <span class="line" id="L506"> <span class="tok-kw">const</span> s2 = <span class="tok-kw">if</span> (endian == .Little) s2_ <span class="tok-kw">else</span> Fe.orderSwap(s2_);</span> <span class="line" id="L507"> <span class="tok-kw">try</span> p1.rejectIdentity();</span> <span class="line" id="L508"> <span class="tok-kw">var</span> pc1_array: [<span class="tok-number">9</span>]Secp256k1 = <span class="tok-null">undefined</span>;</span> <span class="line" id="L509"> <span class="tok-kw">const</span> pc1 = <span class="tok-kw">if</span> (p1.is_base) basePointPc[<span class="tok-number">0</span>..<span class="tok-number">9</span>] <span class="tok-kw">else</span> pc: {</span> <span class="line" id="L510"> pc1_array = precompute(p1, <span class="tok-number">8</span>);</span> <span class="line" id="L511"> <span class="tok-kw">break</span> :pc &pc1_array;</span> <span class="line" id="L512"> };</span> <span class="line" id="L513"> <span class="tok-kw">try</span> p2.rejectIdentity();</span> <span class="line" id="L514"> <span class="tok-kw">var</span> pc2_array: [<span class="tok-number">9</span>]Secp256k1 = <span class="tok-null">undefined</span>;</span> <span class="line" id="L515"> <span class="tok-kw">const</span> pc2 = <span class="tok-kw">if</span> (p2.is_base) basePointPc[<span class="tok-number">0</span>..<span class="tok-number">9</span>] <span class="tok-kw">else</span> pc: {</span> <span class="line" id="L516"> pc2_array = precompute(p2, <span class="tok-number">8</span>);</span> <span class="line" id="L517"> <span class="tok-kw">break</span> :pc &pc2_array;</span> <span class="line" id="L518"> };</span> <span class="line" id="L519"> <span class="tok-kw">const</span> e1 = slide(s1);</span> <span class="line" id="L520"> <span class="tok-kw">const</span> e2 = slide(s2);</span> <span class="line" id="L521"> <span class="tok-kw">var</span> q = Secp256k1.identityElement;</span> <span class="line" id="L522"> <span class="tok-kw">var</span> pos: <span class="tok-type">usize</span> = <span class="tok-number">2</span> * <span class="tok-number">32</span>;</span> <span class="line" id="L523"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) : (pos -= <span class="tok-number">1</span>) {</span> <span class="line" id="L524"> <span class="tok-kw">const</span> slot1 = e1[pos];</span> <span class="line" id="L525"> <span class="tok-kw">if</span> (slot1 > <span class="tok-number">0</span>) {</span> <span class="line" id="L526"> q = q.add(pc1[<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(slot1))]);</span> <span class="line" id="L527"> } <span class="tok-kw">else</span> <span class="tok-kw">if</span> (slot1 < <span class="tok-number">0</span>) {</span> <span class="line" id="L528"> q = q.sub(pc1[<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(-slot1))]);</span> <span class="line" id="L529"> }</span> <span class="line" id="L530"> <span class="tok-kw">const</span> slot2 = e2[pos];</span> <span class="line" id="L531"> <span class="tok-kw">if</span> (slot2 > <span class="tok-number">0</span>) {</span> <span class="line" id="L532"> q = q.add(pc2[<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(slot2))]);</span> <span class="line" id="L533"> } <span class="tok-kw">else</span> <span class="tok-kw">if</span> (slot2 < <span class="tok-number">0</span>) {</span> <span class="line" id="L534"> q = q.sub(pc2[<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(-slot2))]);</span> <span class="line" id="L535"> }</span> <span class="line" id="L536"> <span class="tok-kw">if</span> (pos == <span class="tok-number">0</span>) <span class="tok-kw">break</span>;</span> <span class="line" id="L537"> q = q.dbl().dbl().dbl().dbl();</span> <span class="line" id="L538"> }</span> <span class="line" id="L539"> <span class="tok-kw">try</span> q.rejectIdentity();</span> <span class="line" id="L540"> <span class="tok-kw">return</span> q;</span> <span class="line" id="L541"> }</span> <span class="line" id="L542">};</span> <span class="line" id="L543"></span> <span class="line" id="L544"><span class="tok-comment">/// A point in affine coordinates.</span></span> <span class="line" id="L545"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> AffineCoordinates = <span class="tok-kw">struct</span> {</span> <span class="line" id="L546"> x: Secp256k1.Fe,</span> <span class="line" id="L547"> y: Secp256k1.Fe,</span> <span class="line" id="L548"></span> <span class="line" id="L549"> <span class="tok-comment">/// Identity element in affine coordinates.</span></span> <span class="line" id="L550"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> identityElement = AffineCoordinates{ .x = Secp256k1.identityElement.x, .y = Secp256k1.identityElement.y };</span> <span class="line" id="L551"></span> <span class="line" id="L552"> <span class="tok-kw">fn</span> <span class="tok-fn">cMov</span>(p: *AffineCoordinates, a: AffineCoordinates, c: <span class="tok-type">u1</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L553"> p.x.cMov(a.x, c);</span> <span class="line" id="L554"> p.y.cMov(a.y, c);</span> <span class="line" id="L555"> }</span> <span class="line" id="L556">};</span> <span class="line" id="L557"></span> <span class="line" id="L558"><span class="tok-kw">test</span> {</span> <span class="line" id="L559"> <span class="tok-kw">if</span> (<span class="tok-builtin">@import</span>(<span class="tok-str">"builtin"</span>).zig_backend == .stage2_c) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SkipZigTest;</span> <span class="line" id="L560"></span> <span class="line" id="L561"> _ = <span class="tok-builtin">@import</span>(<span class="tok-str">"tests/secp256k1.zig"</span>);</span> <span class="line" id="L562">}</span> <span class="line" id="L563"></span> </code></pre></body> </html>
repos/yazap/docs/src/std/crypto/pcurves	repos/yazap/docs/src/std/crypto/pcurves/p384/scalar.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/pcurves/p384/scalar.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> common = <span class="tok-builtin">@import</span>(<span class="tok-str">"../common.zig"</span>);</span> <span class="line" id="L3"><span class="tok-kw">const</span> crypto = std.crypto;</span> <span class="line" id="L4"><span class="tok-kw">const</span> debug = std.debug;</span> <span class="line" id="L5"><span class="tok-kw">const</span> math = std.math;</span> <span class="line" id="L6"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L7"></span> <span class="line" id="L8"><span class="tok-kw">const</span> Field = common.Field;</span> <span class="line" id="L9"></span> <span class="line" id="L10"><span class="tok-kw">const</span> NonCanonicalError = std.crypto.errors.NonCanonicalError;</span> <span class="line" id="L11"><span class="tok-kw">const</span> NotSquareError = std.crypto.errors.NotSquareError;</span> <span class="line" id="L12"></span> <span class="line" id="L13"><span class="tok-comment">/// Number of bytes required to encode a scalar.</span></span> <span class="line" id="L14"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> encoded_length = <span class="tok-number">48</span>;</span> <span class="line" id="L15"></span> <span class="line" id="L16"><span class="tok-comment">/// A compressed scalar, in canonical form.</span></span> <span class="line" id="L17"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> CompressedScalar = [encoded_length]<span class="tok-type">u8</span>;</span> <span class="line" id="L18"></span> <span class="line" id="L19"><span class="tok-kw">const</span> Fe = Field(.{</span> <span class="line" id="L20"> .fiat = <span class="tok-builtin">@import</span>(<span class="tok-str">"p384_scalar_64.zig"</span>),</span> <span class="line" id="L21"> .field_order = <span class="tok-number">39402006196394479212279040100143613805079739270465446667946905279627659399113263569398956308152294913554433653942643</span>,</span> <span class="line" id="L22"> .field_bits = <span class="tok-number">384</span>,</span> <span class="line" id="L23"> .saturated_bits = <span class="tok-number">384</span>,</span> <span class="line" id="L24"> .encoded_length = encoded_length,</span> <span class="line" id="L25">});</span> <span class="line" id="L26"></span> <span class="line" id="L27"><span class="tok-comment">/// The scalar field order.</span></span> <span class="line" id="L28"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> field_order = Fe.field_order;</span> <span class="line" id="L29"></span> <span class="line" id="L30"><span class="tok-comment">/// Reject a scalar whose encoding is not canonical.</span></span> <span class="line" id="L31"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">rejectNonCanonical</span>(s: CompressedScalar, endian: std.builtin.Endian) NonCanonicalError!<span class="tok-type">void</span> {</span> <span class="line" id="L32"> <span class="tok-kw">return</span> Fe.rejectNonCanonical(s, endian);</span> <span class="line" id="L33">}</span> <span class="line" id="L34"></span> <span class="line" id="L35"><span class="tok-comment">/// Reduce a 64-bytes scalar to the field size.</span></span> <span class="line" id="L36"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">reduce64</span>(s: [<span class="tok-number">64</span>]<span class="tok-type">u8</span>, endian: std.builtin.Endian) CompressedScalar {</span> <span class="line" id="L37"> <span class="tok-kw">return</span> ScalarDouble.fromBytes64(s, endian).toBytes(endian);</span> <span class="line" id="L38">}</span> <span class="line" id="L39"></span> <span class="line" id="L40"><span class="tok-comment">/// Return ab (mod L)</span></span> <span class="line" id="L41"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">mul</span>(a: CompressedScalar, b: CompressedScalar, endian: std.builtin.Endian) NonCanonicalError!CompressedScalar {</span> <span class="line" id="L42"> <span class="tok-kw">return</span> (<span class="tok-kw">try</span> Scalar.fromBytes(a, endian)).mul(<span class="tok-kw">try</span> Scalar.fromBytes(b, endian)).toBytes(endian);</span> <span class="line" id="L43">}</span> <span class="line" id="L44"></span> <span class="line" id="L45"><span class="tok-comment">/// Return ab+c (mod L)</span></span> <span class="line" id="L46"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">mulAdd</span>(a: CompressedScalar, b: CompressedScalar, c: CompressedScalar, endian: std.builtin.Endian) NonCanonicalError!CompressedScalar {</span> <span class="line" id="L47"> <span class="tok-kw">return</span> (<span class="tok-kw">try</span> Scalar.fromBytes(a, endian)).mul(<span class="tok-kw">try</span> Scalar.fromBytes(b, endian)).add(<span class="tok-kw">try</span> Scalar.fromBytes(c, endian)).toBytes(endian);</span> <span class="line" id="L48">}</span> <span class="line" id="L49"></span> <span class="line" id="L50"><span class="tok-comment">/// Return a+b (mod L)</span></span> <span class="line" id="L51"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">add</span>(a: CompressedScalar, b: CompressedScalar, endian: std.builtin.Endian) NonCanonicalError!CompressedScalar {</span> <span class="line" id="L52"> <span class="tok-kw">return</span> (<span class="tok-kw">try</span> Scalar.fromBytes(a, endian)).add(<span class="tok-kw">try</span> Scalar.fromBytes(b, endian)).toBytes(endian);</span> <span class="line" id="L53">}</span> <span class="line" id="L54"></span> <span class="line" id="L55"><span class="tok-comment">/// Return -s (mod L)</span></span> <span class="line" id="L56"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">neg</span>(s: CompressedScalar, endian: std.builtin.Endian) NonCanonicalError!CompressedScalar {</span> <span class="line" id="L57"> <span class="tok-kw">return</span> (<span class="tok-kw">try</span> Scalar.fromBytes(s, endian)).neg().toBytes(endian);</span> <span class="line" id="L58">}</span> <span class="line" id="L59"></span> <span class="line" id="L60"><span class="tok-comment">/// Return (a-b) (mod L)</span></span> <span class="line" id="L61"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">sub</span>(a: CompressedScalar, b: CompressedScalar, endian: std.builtin.Endian) NonCanonicalError!CompressedScalar {</span> <span class="line" id="L62"> <span class="tok-kw">return</span> (<span class="tok-kw">try</span> Scalar.fromBytes(a, endian)).sub(<span class="tok-kw">try</span> Scalar.fromBytes(b, endian)).toBytes(endian);</span> <span class="line" id="L63">}</span> <span class="line" id="L64"></span> <span class="line" id="L65"><span class="tok-comment">/// Return a random scalar</span></span> <span class="line" id="L66"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">random</span>(endian: std.builtin.Endian) CompressedScalar {</span> <span class="line" id="L67"> <span class="tok-kw">return</span> Scalar.random().toBytes(endian);</span> <span class="line" id="L68">}</span> <span class="line" id="L69"></span> <span class="line" id="L70"><span class="tok-comment">/// A scalar in unpacked representation.</span></span> <span class="line" id="L71"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Scalar = <span class="tok-kw">struct</span> {</span> <span class="line" id="L72"> fe: Fe,</span> <span class="line" id="L73"></span> <span class="line" id="L74"> <span class="tok-comment">/// Zero.</span></span> <span class="line" id="L75"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> zero = Scalar{ .fe = Fe.zero };</span> <span class="line" id="L76"></span> <span class="line" id="L77"> <span class="tok-comment">/// One.</span></span> <span class="line" id="L78"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> one = Scalar{ .fe = Fe.one };</span> <span class="line" id="L79"></span> <span class="line" id="L80"> <span class="tok-comment">/// Unpack a serialized representation of a scalar.</span></span> <span class="line" id="L81"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromBytes</span>(s: CompressedScalar, endian: std.builtin.Endian) NonCanonicalError!Scalar {</span> <span class="line" id="L82"> <span class="tok-kw">return</span> Scalar{ .fe = <span class="tok-kw">try</span> Fe.fromBytes(s, endian) };</span> <span class="line" id="L83"> }</span> <span class="line" id="L84"></span> <span class="line" id="L85"> <span class="tok-comment">/// Reduce a 512 bit input to the field size.</span></span> <span class="line" id="L86"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromBytes64</span>(s: [<span class="tok-number">64</span>]<span class="tok-type">u8</span>, endian: std.builtin.Endian) Scalar {</span> <span class="line" id="L87"> <span class="tok-kw">const</span> t = ScalarDouble.fromBytes(<span class="tok-number">512</span>, s, endian);</span> <span class="line" id="L88"> <span class="tok-kw">return</span> t.reduce(<span class="tok-number">512</span>);</span> <span class="line" id="L89"> }</span> <span class="line" id="L90"></span> <span class="line" id="L91"> <span class="tok-comment">/// Pack a scalar into bytes.</span></span> <span class="line" id="L92"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toBytes</span>(n: Scalar, endian: std.builtin.Endian) CompressedScalar {</span> <span class="line" id="L93"> <span class="tok-kw">return</span> n.fe.toBytes(endian);</span> <span class="line" id="L94"> }</span> <span class="line" id="L95"></span> <span class="line" id="L96"> <span class="tok-comment">/// Return true if the scalar is zero..</span></span> <span class="line" id="L97"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">isZero</span>(n: Scalar) <span class="tok-type">bool</span> {</span> <span class="line" id="L98"> <span class="tok-kw">return</span> n.fe.isZero();</span> <span class="line" id="L99"> }</span> <span class="line" id="L100"></span> <span class="line" id="L101"> <span class="tok-comment">/// Return true if the scalar is odd.</span></span> <span class="line" id="L102"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">isOdd</span>(n: Scalar) <span class="tok-type">bool</span> {</span> <span class="line" id="L103"> <span class="tok-kw">return</span> n.fe.isOdd();</span> <span class="line" id="L104"> }</span> <span class="line" id="L105"></span> <span class="line" id="L106"> <span class="tok-comment">/// Return true if a and b are equivalent.</span></span> <span class="line" id="L107"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">equivalent</span>(a: Scalar, b: Scalar) <span class="tok-type">bool</span> {</span> <span class="line" id="L108"> <span class="tok-kw">return</span> a.fe.equivalent(b.fe);</span> <span class="line" id="L109"> }</span> <span class="line" id="L110"></span> <span class="line" id="L111"> <span class="tok-comment">/// Compute x+y (mod L)</span></span> <span class="line" id="L112"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">add</span>(x: Scalar, y: Scalar) Scalar {</span> <span class="line" id="L113"> <span class="tok-kw">return</span> Scalar{ .fe = x.fe.add(y.fe) };</span> <span class="line" id="L114"> }</span> <span class="line" id="L115"></span> <span class="line" id="L116"> <span class="tok-comment">/// Compute x-y (mod L)</span></span> <span class="line" id="L117"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">sub</span>(x: Scalar, y: Scalar) Scalar {</span> <span class="line" id="L118"> <span class="tok-kw">return</span> Scalar{ .fe = x.fe.sub(y.fe) };</span> <span class="line" id="L119"> }</span> <span class="line" id="L120"></span> <span class="line" id="L121"> <span class="tok-comment">/// Compute 2n (mod L)</span></span> <span class="line" id="L122"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">dbl</span>(n: Scalar) Scalar {</span> <span class="line" id="L123"> <span class="tok-kw">return</span> Scalar{ .fe = n.fe.dbl() };</span> <span class="line" id="L124"> }</span> <span class="line" id="L125"></span> <span class="line" id="L126"> <span class="tok-comment">/// Compute xy (mod L)</span></span> <span class="line" id="L127"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">mul</span>(x: Scalar, y: Scalar) Scalar {</span> <span class="line" id="L128"> <span class="tok-kw">return</span> Scalar{ .fe = x.fe.mul(y.fe) };</span> <span class="line" id="L129"> }</span> <span class="line" id="L130"></span> <span class="line" id="L131"> <span class="tok-comment">/// Compute x^2 (mod L)</span></span> <span class="line" id="L132"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">sq</span>(n: Scalar) Scalar {</span> <span class="line" id="L133"> <span class="tok-kw">return</span> Scalar{ .fe = n.fe.sq() };</span> <span class="line" id="L134"> }</span> <span class="line" id="L135"></span> <span class="line" id="L136"> <span class="tok-comment">/// Compute x^n (mod L)</span></span> <span class="line" id="L137"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">pow</span>(a: Scalar, <span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>, <span class="tok-kw">comptime</span> n: T) Scalar {</span> <span class="line" id="L138"> <span class="tok-kw">return</span> Scalar{ .fe = a.fe.pow(n) };</span> <span class="line" id="L139"> }</span> <span class="line" id="L140"></span> <span class="line" id="L141"> <span class="tok-comment">/// Compute -x (mod L)</span></span> <span class="line" id="L142"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">neg</span>(n: Scalar) Scalar {</span> <span class="line" id="L143"> <span class="tok-kw">return</span> Scalar{ .fe = n.fe.neg() };</span> <span class="line" id="L144"> }</span> <span class="line" id="L145"></span> <span class="line" id="L146"> <span class="tok-comment">/// Compute x^-1 (mod L)</span></span> <span class="line" id="L147"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">invert</span>(n: Scalar) Scalar {</span> <span class="line" id="L148"> <span class="tok-kw">return</span> Scalar{ .fe = n.fe.invert() };</span> <span class="line" id="L149"> }</span> <span class="line" id="L150"></span> <span class="line" id="L151"> <span class="tok-comment">/// Return true if n is a quadratic residue mod L.</span></span> <span class="line" id="L152"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">isSquare</span>(n: Scalar) Scalar {</span> <span class="line" id="L153"> <span class="tok-kw">return</span> n.fe.isSquare();</span> <span class="line" id="L154"> }</span> <span class="line" id="L155"></span> <span class="line" id="L156"> <span class="tok-comment">/// Return the square root of L, or NotSquare if there isn't any solutions.</span></span> <span class="line" id="L157"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">sqrt</span>(n: Scalar) NotSquareError!Scalar {</span> <span class="line" id="L158"> <span class="tok-kw">return</span> Scalar{ .fe = <span class="tok-kw">try</span> n.fe.sqrt() };</span> <span class="line" id="L159"> }</span> <span class="line" id="L160"></span> <span class="line" id="L161"> <span class="tok-comment">/// Return a random scalar < L.</span></span> <span class="line" id="L162"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">random</span>() Scalar {</span> <span class="line" id="L163"> <span class="tok-kw">var</span> s: [<span class="tok-number">64</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L164"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L165"> crypto.random.bytes(&s);</span> <span class="line" id="L166"> <span class="tok-kw">const</span> n = Scalar.fromBytes64(s, .Little);</span> <span class="line" id="L167"> <span class="tok-kw">if</span> (!n.isZero()) {</span> <span class="line" id="L168"> <span class="tok-kw">return</span> n;</span> <span class="line" id="L169"> }</span> <span class="line" id="L170"> }</span> <span class="line" id="L171"> }</span> <span class="line" id="L172">};</span> <span class="line" id="L173"></span> <span class="line" id="L174"><span class="tok-kw">const</span> ScalarDouble = <span class="tok-kw">struct</span> {</span> <span class="line" id="L175"> x1: Fe,</span> <span class="line" id="L176"> x2: Fe,</span> <span class="line" id="L177"></span> <span class="line" id="L178"> <span class="tok-kw">fn</span> <span class="tok-fn">fromBytes</span>(<span class="tok-kw">comptime</span> bits: <span class="tok-type">usize</span>, s_: [bits / <span class="tok-number">8</span>]<span class="tok-type">u8</span>, endian: std.builtin.Endian) ScalarDouble {</span> <span class="line" id="L179"> debug.assert(bits > <span class="tok-number">0</span> <span class="tok-kw">and</span> bits <= <span class="tok-number">512</span> <span class="tok-kw">and</span> bits >= Fe.saturated_bits <span class="tok-kw">and</span> bits <= Fe.saturated_bits <span class="tok-number">2</span>);</span> <span class="line" id="L180"></span> <span class="line" id="L181"> <span class="tok-kw">var</span> s = s_;</span> <span class="line" id="L182"> <span class="tok-kw">if</span> (endian == .Big) {</span> <span class="line" id="L183"> <span class="tok-kw">for</span> (s_, <span class="tok-number">0</span>..) \|x, i\| s[s.len - <span class="tok-number">1</span> - i] = x;</span> <span class="line" id="L184"> }</span> <span class="line" id="L185"> <span class="tok-kw">var</span> t = ScalarDouble{ .x1 = <span class="tok-null">undefined</span>, .x2 = Fe.zero };</span> <span class="line" id="L186"> {</span> <span class="line" id="L187"> <span class="tok-kw">var</span> b = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} ** encoded_length;</span> <span class="line" id="L188"> <span class="tok-kw">const</span> len = <span class="tok-builtin">@min</span>(s.len, <span class="tok-number">32</span>);</span> <span class="line" id="L189"> b[<span class="tok-number">0</span>..len].* = s[<span class="tok-number">0</span>..len].;</span> <span class="line" id="L190"> t.x1 = Fe.fromBytes(b, .Little) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L191"> }</span> <span class="line" id="L192"> <span class="tok-kw">if</span> (s_.len >= <span class="tok-number">32</span>) {</span> <span class="line" id="L193"> <span class="tok-kw">var</span> b = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} * encoded_length;</span> <span class="line" id="L194"> <span class="tok-kw">const</span> len = <span class="tok-builtin">@min</span>(s.len - <span class="tok-number">32</span>, <span class="tok-number">32</span>);</span> <span class="line" id="L195"> b[<span class="tok-number">0</span>..len].* = s[<span class="tok-number">32</span>..][<span class="tok-number">0</span>..len].;</span> <span class="line" id="L196"> t.x2 = Fe.fromBytes(b, .Little) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L197"> }</span> <span class="line" id="L198"> <span class="tok-kw">return</span> t;</span> <span class="line" id="L199"> }</span> <span class="line" id="L200"></span> <span class="line" id="L201"> <span class="tok-kw">fn</span> <span class="tok-fn">reduce</span>(expanded: ScalarDouble, <span class="tok-kw">comptime</span> bits: <span class="tok-type">usize</span>) Scalar {</span> <span class="line" id="L202"> debug.assert(bits > <span class="tok-number">0</span> <span class="tok-kw">and</span> bits <= Fe.saturated_bits <span class="tok-number">3</span> <span class="tok-kw">and</span> bits <= <span class="tok-number">512</span>);</span> <span class="line" id="L203"> <span class="tok-kw">var</span> fe = expanded.x1;</span> <span class="line" id="L204"> <span class="tok-kw">if</span> (bits >= <span class="tok-number">256</span>) {</span> <span class="line" id="L205"> <span class="tok-kw">const</span> st1 = Fe.fromInt(<span class="tok-number">1</span> << <span class="tok-number">256</span>) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L206"> fe = fe.add(expanded.x2.mul(st1));</span> <span class="line" id="L207"> }</span> <span class="line" id="L208"> <span class="tok-kw">return</span> Scalar{ .fe = fe };</span> <span class="line" id="L209"> }</span> <span class="line" id="L210">};</span> <span class="line" id="L211"></span> </code></pre></body> </html>
repos/yazap/docs/src/std/crypto/pcurves	repos/yazap/docs/src/std/crypto/pcurves/p384/field.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/pcurves/p384/field.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> common = <span class="tok-builtin">@import</span>(<span class="tok-str">"../common.zig"</span>);</span> <span class="line" id="L3"></span> <span class="line" id="L4"><span class="tok-kw">const</span> Field = common.Field;</span> <span class="line" id="L5"></span> <span class="line" id="L6"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Fe = Field(.{</span> <span class="line" id="L7"> .fiat = <span class="tok-builtin">@import</span>(<span class="tok-str">"p384_64.zig"</span>),</span> <span class="line" id="L8"> .field_order = <span class="tok-number">39402006196394479212279040100143613805079739270465446667948293404245721771496870329047266088258938001861606973112319</span>,</span> <span class="line" id="L9"> .field_bits = <span class="tok-number">384</span>,</span> <span class="line" id="L10"> .saturated_bits = <span class="tok-number">384</span>,</span> <span class="line" id="L11"> .encoded_length = <span class="tok-number">48</span>,</span> <span class="line" id="L12">});</span> <span class="line" id="L13"></span> </code></pre></body> </html>
repos/yazap/docs/src/std/crypto/pcurves	repos/yazap/docs/src/std/crypto/pcurves/p384/p384_scalar_64.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/pcurves/p384/p384_scalar_64.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-comment">// Autogenerated: 'src/ExtractionOCaml/word_by_word_montgomery' --lang Zig --internal-static --public-function-case camelCase --private-function-case camelCase --public-type-case UpperCamelCase --private-type-case UpperCamelCase --no-prefix-fiat --package-name p384_scalar '' 64 '2^384 - 1388124618062372383947042015309946732620727252194336364173' mul square add sub opp from_montgomery to_montgomery nonzero selectznz to_bytes from_bytes one msat divstep divstep_precomp</span> </span> <span class="line" id="L2"><span class="tok-comment">// curve description (via package name): p384_scalar</span> </span> <span class="line" id="L3"><span class="tok-comment">// machine_wordsize = 64 (from "64")</span> </span> <span class="line" id="L4"><span class="tok-comment">// requested operations: mul, square, add, sub, opp, from_montgomery, to_montgomery, nonzero, selectznz, to_bytes, from_bytes, one, msat, divstep, divstep_precomp</span> </span> <span class="line" id="L5"><span class="tok-comment">// m = 0xffffffffffffffffffffffffffffffffffffffffffffffffc7634d81f4372ddf581a0db248b0a77aecec196accc52973 (from "2^384 - 1388124618062372383947042015309946732620727252194336364173")</span> </span> <span class="line" id="L6"><span class="tok-comment">//</span> </span> <span class="line" id="L7"><span class="tok-comment">// NOTE: In addition to the bounds specified above each function, all</span> </span> <span class="line" id="L8"><span class="tok-comment">// functions synthesized for this Montgomery arithmetic require the</span> </span> <span class="line" id="L9"><span class="tok-comment">// input to be strictly less than the prime modulus (m), and also</span> </span> <span class="line" id="L10"><span class="tok-comment">// require the input to be in the unique saturated representation.</span> </span> <span class="line" id="L11"><span class="tok-comment">// All functions also ensure that these two properties are true of</span> </span> <span class="line" id="L12"><span class="tok-comment">// return values.</span> </span> <span class="line" id="L13"><span class="tok-comment">//</span> </span> <span class="line" id="L14"><span class="tok-comment">// Computed values:</span> </span> <span class="line" id="L15"><span class="tok-comment">// eval z = z[0] + (z[1] << 64) + (z[2] << 128) + (z[3] << 192) + (z[4] << 256) + (z[5] << 0x140)</span> </span> <span class="line" id="L16"><span class="tok-comment">// bytes_eval z = z[0] + (z[1] << 8) + (z[2] << 16) + (z[3] << 24) + (z[4] << 32) + (z[5] << 40) + (z[6] << 48) + (z[7] << 56) + (z[8] << 64) + (z[9] << 72) + (z[10] << 80) + (z[11] << 88) + (z[12] << 96) + (z[13] << 104) + (z[14] << 112) + (z[15] << 120) + (z[16] << 128) + (z[17] << 136) + (z[18] << 144) + (z[19] << 152) + (z[20] << 160) + (z[21] << 168) + (z[22] << 176) + (z[23] << 184) + (z[24] << 192) + (z[25] << 200) + (z[26] << 208) + (z[27] << 216) + (z[28] << 224) + (z[29] << 232) + (z[30] << 240) + (z[31] << 248) + (z[32] << 256) + (z[33] << 0x108) + (z[34] << 0x110) + (z[35] << 0x118) + (z[36] << 0x120) + (z[37] << 0x128) + (z[38] << 0x130) + (z[39] << 0x138) + (z[40] << 0x140) + (z[41] << 0x148) + (z[42] << 0x150) + (z[43] << 0x158) + (z[44] << 0x160) + (z[45] << 0x168) + (z[46] << 0x170) + (z[47] << 0x178)</span> </span> <span class="line" id="L17"><span class="tok-comment">// twos_complement_eval z = let x1 := z[0] + (z[1] << 64) + (z[2] << 128) + (z[3] << 192) + (z[4] << 256) + (z[5] << 0x140) in</span> </span> <span class="line" id="L18"><span class="tok-comment">// if x1 & (2^384-1) < 2^383 then x1 & (2^384-1) else (x1 & (2^384-1)) - 2^384</span> </span> <span class="line" id="L19"></span> <span class="line" id="L20"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L21"><span class="tok-kw">const</span> mode = <span class="tok-builtin">@import</span>(<span class="tok-str">"builtin"</span>).mode; <span class="tok-comment">// Checked arithmetic is disabled in non-debug modes to avoid side channels</span> </span> <span class="line" id="L22"></span> <span class="line" id="L23"><span class="tok-comment">// The type MontgomeryDomainFieldElement is a field element in the Montgomery domain.</span> </span> <span class="line" id="L24"><span class="tok-comment">// Bounds: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span> </span> <span class="line" id="L25"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> MontgomeryDomainFieldElement = [<span class="tok-number">6</span>]<span class="tok-type">u64</span>;</span> <span class="line" id="L26"></span> <span class="line" id="L27"><span class="tok-comment">// The type NonMontgomeryDomainFieldElement is a field element NOT in the Montgomery domain.</span> </span> <span class="line" id="L28"><span class="tok-comment">// Bounds: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span> </span> <span class="line" id="L29"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> NonMontgomeryDomainFieldElement = [<span class="tok-number">6</span>]<span class="tok-type">u64</span>;</span> <span class="line" id="L30"></span> <span class="line" id="L31"><span class="tok-comment">/// The function addcarryxU64 is an addition with carry.</span></span> <span class="line" id="L32"><span class="tok-comment">///</span></span> <span class="line" id="L33"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L34"><span class="tok-comment">/// out1 = (arg1 + arg2 + arg3) mod 2^64</span></span> <span class="line" id="L35"><span class="tok-comment">/// out2 = ⌊(arg1 + arg2 + arg3) / 2^64⌋</span></span> <span class="line" id="L36"><span class="tok-comment">///</span></span> <span class="line" id="L37"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L38"><span class="tok-comment">/// arg1: [0x0 ~> 0x1]</span></span> <span class="line" id="L39"><span class="tok-comment">/// arg2: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L40"><span class="tok-comment">/// arg3: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L41"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L42"><span class="tok-comment">/// out1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L43"><span class="tok-comment">/// out2: [0x0 ~> 0x1]</span></span> <span class="line" id="L44"><span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">addcarryxU64</span>(out1: <span class="tok-type">u64</span>, out2: <span class="tok-type">u1</span>, arg1: <span class="tok-type">u1</span>, arg2: <span class="tok-type">u64</span>, arg3: <span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L45"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L46"></span> <span class="line" id="L47"> <span class="tok-kw">const</span> ov1 = <span class="tok-builtin">@addWithOverflow</span>(arg2, arg3);</span> <span class="line" id="L48"> <span class="tok-kw">const</span> ov2 = <span class="tok-builtin">@addWithOverflow</span>(ov1[<span class="tok-number">0</span>], arg1);</span> <span class="line" id="L49"> out1.* = ov2[<span class="tok-number">0</span>];</span> <span class="line" id="L50"> out2.* = ov1[<span class="tok-number">1</span>] \| ov2[<span class="tok-number">1</span>];</span> <span class="line" id="L51">}</span> <span class="line" id="L52"></span> <span class="line" id="L53"><span class="tok-comment">/// The function subborrowxU64 is a subtraction with borrow.</span></span> <span class="line" id="L54"><span class="tok-comment">///</span></span> <span class="line" id="L55"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L56"><span class="tok-comment">/// out1 = (-arg1 + arg2 + -arg3) mod 2^64</span></span> <span class="line" id="L57"><span class="tok-comment">/// out2 = -⌊(-arg1 + arg2 + -arg3) / 2^64⌋</span></span> <span class="line" id="L58"><span class="tok-comment">///</span></span> <span class="line" id="L59"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L60"><span class="tok-comment">/// arg1: [0x0 ~> 0x1]</span></span> <span class="line" id="L61"><span class="tok-comment">/// arg2: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L62"><span class="tok-comment">/// arg3: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L63"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L64"><span class="tok-comment">/// out1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L65"><span class="tok-comment">/// out2: [0x0 ~> 0x1]</span></span> <span class="line" id="L66"><span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">subborrowxU64</span>(out1: <span class="tok-type">u64</span>, out2: <span class="tok-type">u1</span>, arg1: <span class="tok-type">u1</span>, arg2: <span class="tok-type">u64</span>, arg3: <span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L67"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L68"></span> <span class="line" id="L69"> <span class="tok-kw">const</span> ov1 = <span class="tok-builtin">@subWithOverflow</span>(arg2, arg3);</span> <span class="line" id="L70"> <span class="tok-kw">const</span> ov2 = <span class="tok-builtin">@subWithOverflow</span>(ov1[<span class="tok-number">0</span>], arg1);</span> <span class="line" id="L71"> out1.* = ov2[<span class="tok-number">0</span>];</span> <span class="line" id="L72"> out2.* = ov1[<span class="tok-number">1</span>] \| ov2[<span class="tok-number">1</span>];</span> <span class="line" id="L73">}</span> <span class="line" id="L74"></span> <span class="line" id="L75"><span class="tok-comment">/// The function mulxU64 is a multiplication, returning the full double-width result.</span></span> <span class="line" id="L76"><span class="tok-comment">///</span></span> <span class="line" id="L77"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L78"><span class="tok-comment">/// out1 = (arg1 * arg2) mod 2^64</span></span> <span class="line" id="L79"><span class="tok-comment">/// out2 = ⌊arg1 * arg2 / 2^64⌋</span></span> <span class="line" id="L80"><span class="tok-comment">///</span></span> <span class="line" id="L81"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L82"><span class="tok-comment">/// arg1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L83"><span class="tok-comment">/// arg2: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L84"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L85"><span class="tok-comment">/// out1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L86"><span class="tok-comment">/// out2: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L87"><span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">mulxU64</span>(out1: <span class="tok-type">u64</span>, out2: <span class="tok-type">u64</span>, arg1: <span class="tok-type">u64</span>, arg2: <span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L88"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L89"></span> <span class="line" id="L90"> <span class="tok-kw">const</span> x = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, arg1) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, arg2);</span> <span class="line" id="L91"> out1.* = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(x));</span> <span class="line" id="L92"> out2.* = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(x >> <span class="tok-number">64</span>));</span> <span class="line" id="L93">}</span> <span class="line" id="L94"></span> <span class="line" id="L95"><span class="tok-comment">/// The function cmovznzU64 is a single-word conditional move.</span></span> <span class="line" id="L96"><span class="tok-comment">///</span></span> <span class="line" id="L97"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L98"><span class="tok-comment">/// out1 = (if arg1 = 0 then arg2 else arg3)</span></span> <span class="line" id="L99"><span class="tok-comment">///</span></span> <span class="line" id="L100"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L101"><span class="tok-comment">/// arg1: [0x0 ~> 0x1]</span></span> <span class="line" id="L102"><span class="tok-comment">/// arg2: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L103"><span class="tok-comment">/// arg3: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L104"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L105"><span class="tok-comment">/// out1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L106"><span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">cmovznzU64</span>(out1: <span class="tok-type">u64</span>, arg1: <span class="tok-type">u1</span>, arg2: <span class="tok-type">u64</span>, arg3: <span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L107"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L108"></span> <span class="line" id="L109"> <span class="tok-kw">const</span> mask = <span class="tok-number">0</span> -% <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, arg1);</span> <span class="line" id="L110"> out1. = (mask & arg3) \| ((~mask) & arg2);</span> <span class="line" id="L111">}</span> <span class="line" id="L112"></span> <span class="line" id="L113"><span class="tok-comment">/// The function mul multiplies two field elements in the Montgomery domain.</span></span> <span class="line" id="L114"><span class="tok-comment">///</span></span> <span class="line" id="L115"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L116"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L117"><span class="tok-comment">/// 0 ≤ eval arg2 < m</span></span> <span class="line" id="L118"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L119"><span class="tok-comment">/// eval (from_montgomery out1) mod m = (eval (from_montgomery arg1) * eval (from_montgomery arg2)) mod m</span></span> <span class="line" id="L120"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L121"><span class="tok-comment">///</span></span> <span class="line" id="L122"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">mul</span>(out1: MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldElement, arg2: MontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L123"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L124"></span> <span class="line" id="L125"> <span class="tok-kw">const</span> x1 = (arg1[<span class="tok-number">1</span>]);</span> <span class="line" id="L126"> <span class="tok-kw">const</span> x2 = (arg1[<span class="tok-number">2</span>]);</span> <span class="line" id="L127"> <span class="tok-kw">const</span> x3 = (arg1[<span class="tok-number">3</span>]);</span> <span class="line" id="L128"> <span class="tok-kw">const</span> x4 = (arg1[<span class="tok-number">4</span>]);</span> <span class="line" id="L129"> <span class="tok-kw">const</span> x5 = (arg1[<span class="tok-number">5</span>]);</span> <span class="line" id="L130"> <span class="tok-kw">const</span> x6 = (arg1[<span class="tok-number">0</span>]);</span> <span class="line" id="L131"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L132"> <span class="tok-kw">var</span> x8: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L133"> mulxU64(&x7, &x8, x6, (arg2[<span class="tok-number">5</span>]));</span> <span class="line" id="L134"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L135"> <span class="tok-kw">var</span> x10: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L136"> mulxU64(&x9, &x10, x6, (arg2[<span class="tok-number">4</span>]));</span> <span class="line" id="L137"> <span class="tok-kw">var</span> x11: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L138"> <span class="tok-kw">var</span> x12: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L139"> mulxU64(&x11, &x12, x6, (arg2[<span class="tok-number">3</span>]));</span> <span class="line" id="L140"> <span class="tok-kw">var</span> x13: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L141"> <span class="tok-kw">var</span> x14: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L142"> mulxU64(&x13, &x14, x6, (arg2[<span class="tok-number">2</span>]));</span> <span class="line" id="L143"> <span class="tok-kw">var</span> x15: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L144"> <span class="tok-kw">var</span> x16: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L145"> mulxU64(&x15, &x16, x6, (arg2[<span class="tok-number">1</span>]));</span> <span class="line" id="L146"> <span class="tok-kw">var</span> x17: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L147"> <span class="tok-kw">var</span> x18: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L148"> mulxU64(&x17, &x18, x6, (arg2[<span class="tok-number">0</span>]));</span> <span class="line" id="L149"> <span class="tok-kw">var</span> x19: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L150"> <span class="tok-kw">var</span> x20: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L151"> addcarryxU64(&x19, &x20, <span class="tok-number">0x0</span>, x18, x15);</span> <span class="line" id="L152"> <span class="tok-kw">var</span> x21: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L153"> <span class="tok-kw">var</span> x22: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L154"> addcarryxU64(&x21, &x22, x20, x16, x13);</span> <span class="line" id="L155"> <span class="tok-kw">var</span> x23: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L156"> <span class="tok-kw">var</span> x24: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L157"> addcarryxU64(&x23, &x24, x22, x14, x11);</span> <span class="line" id="L158"> <span class="tok-kw">var</span> x25: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L159"> <span class="tok-kw">var</span> x26: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L160"> addcarryxU64(&x25, &x26, x24, x12, x9);</span> <span class="line" id="L161"> <span class="tok-kw">var</span> x27: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L162"> <span class="tok-kw">var</span> x28: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L163"> addcarryxU64(&x27, &x28, x26, x10, x7);</span> <span class="line" id="L164"> <span class="tok-kw">const</span> x29 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x28) + x8);</span> <span class="line" id="L165"> <span class="tok-kw">var</span> x30: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L166"> <span class="tok-kw">var</span> x31: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L167"> mulxU64(&x30, &x31, x17, <span class="tok-number">0x6ed46089e88fdc45</span>);</span> <span class="line" id="L168"> <span class="tok-kw">var</span> x32: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L169"> <span class="tok-kw">var</span> x33: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L170"> mulxU64(&x32, &x33, x30, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L171"> <span class="tok-kw">var</span> x34: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L172"> <span class="tok-kw">var</span> x35: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L173"> mulxU64(&x34, &x35, x30, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L174"> <span class="tok-kw">var</span> x36: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L175"> <span class="tok-kw">var</span> x37: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L176"> mulxU64(&x36, &x37, x30, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L177"> <span class="tok-kw">var</span> x38: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L178"> <span class="tok-kw">var</span> x39: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L179"> mulxU64(&x38, &x39, x30, <span class="tok-number">0xc7634d81f4372ddf</span>);</span> <span class="line" id="L180"> <span class="tok-kw">var</span> x40: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L181"> <span class="tok-kw">var</span> x41: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L182"> mulxU64(&x40, &x41, x30, <span class="tok-number">0x581a0db248b0a77a</span>);</span> <span class="line" id="L183"> <span class="tok-kw">var</span> x42: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L184"> <span class="tok-kw">var</span> x43: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L185"> mulxU64(&x42, &x43, x30, <span class="tok-number">0xecec196accc52973</span>);</span> <span class="line" id="L186"> <span class="tok-kw">var</span> x44: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L187"> <span class="tok-kw">var</span> x45: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L188"> addcarryxU64(&x44, &x45, <span class="tok-number">0x0</span>, x43, x40);</span> <span class="line" id="L189"> <span class="tok-kw">var</span> x46: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L190"> <span class="tok-kw">var</span> x47: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L191"> addcarryxU64(&x46, &x47, x45, x41, x38);</span> <span class="line" id="L192"> <span class="tok-kw">var</span> x48: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L193"> <span class="tok-kw">var</span> x49: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L194"> addcarryxU64(&x48, &x49, x47, x39, x36);</span> <span class="line" id="L195"> <span class="tok-kw">var</span> x50: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L196"> <span class="tok-kw">var</span> x51: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L197"> addcarryxU64(&x50, &x51, x49, x37, x34);</span> <span class="line" id="L198"> <span class="tok-kw">var</span> x52: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L199"> <span class="tok-kw">var</span> x53: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L200"> addcarryxU64(&x52, &x53, x51, x35, x32);</span> <span class="line" id="L201"> <span class="tok-kw">const</span> x54 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x53) + x33);</span> <span class="line" id="L202"> <span class="tok-kw">var</span> x55: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L203"> <span class="tok-kw">var</span> x56: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L204"> addcarryxU64(&x55, &x56, <span class="tok-number">0x0</span>, x17, x42);</span> <span class="line" id="L205"> <span class="tok-kw">var</span> x57: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L206"> <span class="tok-kw">var</span> x58: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L207"> addcarryxU64(&x57, &x58, x56, x19, x44);</span> <span class="line" id="L208"> <span class="tok-kw">var</span> x59: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L209"> <span class="tok-kw">var</span> x60: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L210"> addcarryxU64(&x59, &x60, x58, x21, x46);</span> <span class="line" id="L211"> <span class="tok-kw">var</span> x61: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L212"> <span class="tok-kw">var</span> x62: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L213"> addcarryxU64(&x61, &x62, x60, x23, x48);</span> <span class="line" id="L214"> <span class="tok-kw">var</span> x63: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L215"> <span class="tok-kw">var</span> x64: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L216"> addcarryxU64(&x63, &x64, x62, x25, x50);</span> <span class="line" id="L217"> <span class="tok-kw">var</span> x65: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L218"> <span class="tok-kw">var</span> x66: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L219"> addcarryxU64(&x65, &x66, x64, x27, x52);</span> <span class="line" id="L220"> <span class="tok-kw">var</span> x67: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L221"> <span class="tok-kw">var</span> x68: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L222"> addcarryxU64(&x67, &x68, x66, x29, x54);</span> <span class="line" id="L223"> <span class="tok-kw">var</span> x69: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L224"> <span class="tok-kw">var</span> x70: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L225"> mulxU64(&x69, &x70, x1, (arg2[<span class="tok-number">5</span>]));</span> <span class="line" id="L226"> <span class="tok-kw">var</span> x71: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L227"> <span class="tok-kw">var</span> x72: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L228"> mulxU64(&x71, &x72, x1, (arg2[<span class="tok-number">4</span>]));</span> <span class="line" id="L229"> <span class="tok-kw">var</span> x73: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L230"> <span class="tok-kw">var</span> x74: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L231"> mulxU64(&x73, &x74, x1, (arg2[<span class="tok-number">3</span>]));</span> <span class="line" id="L232"> <span class="tok-kw">var</span> x75: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L233"> <span class="tok-kw">var</span> x76: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L234"> mulxU64(&x75, &x76, x1, (arg2[<span class="tok-number">2</span>]));</span> <span class="line" id="L235"> <span class="tok-kw">var</span> x77: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L236"> <span class="tok-kw">var</span> x78: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L237"> mulxU64(&x77, &x78, x1, (arg2[<span class="tok-number">1</span>]));</span> <span class="line" id="L238"> <span class="tok-kw">var</span> x79: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L239"> <span class="tok-kw">var</span> x80: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L240"> mulxU64(&x79, &x80, x1, (arg2[<span class="tok-number">0</span>]));</span> <span class="line" id="L241"> <span class="tok-kw">var</span> x81: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L242"> <span class="tok-kw">var</span> x82: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L243"> addcarryxU64(&x81, &x82, <span class="tok-number">0x0</span>, x80, x77);</span> <span class="line" id="L244"> <span class="tok-kw">var</span> x83: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L245"> <span class="tok-kw">var</span> x84: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L246"> addcarryxU64(&x83, &x84, x82, x78, x75);</span> <span class="line" id="L247"> <span class="tok-kw">var</span> x85: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L248"> <span class="tok-kw">var</span> x86: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L249"> addcarryxU64(&x85, &x86, x84, x76, x73);</span> <span class="line" id="L250"> <span class="tok-kw">var</span> x87: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L251"> <span class="tok-kw">var</span> x88: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L252"> addcarryxU64(&x87, &x88, x86, x74, x71);</span> <span class="line" id="L253"> <span class="tok-kw">var</span> x89: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L254"> <span class="tok-kw">var</span> x90: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L255"> addcarryxU64(&x89, &x90, x88, x72, x69);</span> <span class="line" id="L256"> <span class="tok-kw">const</span> x91 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x90) + x70);</span> <span class="line" id="L257"> <span class="tok-kw">var</span> x92: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L258"> <span class="tok-kw">var</span> x93: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L259"> addcarryxU64(&x92, &x93, <span class="tok-number">0x0</span>, x57, x79);</span> <span class="line" id="L260"> <span class="tok-kw">var</span> x94: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L261"> <span class="tok-kw">var</span> x95: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L262"> addcarryxU64(&x94, &x95, x93, x59, x81);</span> <span class="line" id="L263"> <span class="tok-kw">var</span> x96: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L264"> <span class="tok-kw">var</span> x97: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L265"> addcarryxU64(&x96, &x97, x95, x61, x83);</span> <span class="line" id="L266"> <span class="tok-kw">var</span> x98: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L267"> <span class="tok-kw">var</span> x99: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L268"> addcarryxU64(&x98, &x99, x97, x63, x85);</span> <span class="line" id="L269"> <span class="tok-kw">var</span> x100: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L270"> <span class="tok-kw">var</span> x101: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L271"> addcarryxU64(&x100, &x101, x99, x65, x87);</span> <span class="line" id="L272"> <span class="tok-kw">var</span> x102: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L273"> <span class="tok-kw">var</span> x103: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L274"> addcarryxU64(&x102, &x103, x101, x67, x89);</span> <span class="line" id="L275"> <span class="tok-kw">var</span> x104: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L276"> <span class="tok-kw">var</span> x105: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L277"> addcarryxU64(&x104, &x105, x103, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x68), x91);</span> <span class="line" id="L278"> <span class="tok-kw">var</span> x106: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L279"> <span class="tok-kw">var</span> x107: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L280"> mulxU64(&x106, &x107, x92, <span class="tok-number">0x6ed46089e88fdc45</span>);</span> <span class="line" id="L281"> <span class="tok-kw">var</span> x108: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L282"> <span class="tok-kw">var</span> x109: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L283"> mulxU64(&x108, &x109, x106, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L284"> <span class="tok-kw">var</span> x110: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L285"> <span class="tok-kw">var</span> x111: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L286"> mulxU64(&x110, &x111, x106, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L287"> <span class="tok-kw">var</span> x112: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L288"> <span class="tok-kw">var</span> x113: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L289"> mulxU64(&x112, &x113, x106, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L290"> <span class="tok-kw">var</span> x114: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L291"> <span class="tok-kw">var</span> x115: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L292"> mulxU64(&x114, &x115, x106, <span class="tok-number">0xc7634d81f4372ddf</span>);</span> <span class="line" id="L293"> <span class="tok-kw">var</span> x116: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L294"> <span class="tok-kw">var</span> x117: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L295"> mulxU64(&x116, &x117, x106, <span class="tok-number">0x581a0db248b0a77a</span>);</span> <span class="line" id="L296"> <span class="tok-kw">var</span> x118: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L297"> <span class="tok-kw">var</span> x119: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L298"> mulxU64(&x118, &x119, x106, <span class="tok-number">0xecec196accc52973</span>);</span> <span class="line" id="L299"> <span class="tok-kw">var</span> x120: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L300"> <span class="tok-kw">var</span> x121: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L301"> addcarryxU64(&x120, &x121, <span class="tok-number">0x0</span>, x119, x116);</span> <span class="line" id="L302"> <span class="tok-kw">var</span> x122: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L303"> <span class="tok-kw">var</span> x123: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L304"> addcarryxU64(&x122, &x123, x121, x117, x114);</span> <span class="line" id="L305"> <span class="tok-kw">var</span> x124: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L306"> <span class="tok-kw">var</span> x125: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L307"> addcarryxU64(&x124, &x125, x123, x115, x112);</span> <span class="line" id="L308"> <span class="tok-kw">var</span> x126: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L309"> <span class="tok-kw">var</span> x127: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L310"> addcarryxU64(&x126, &x127, x125, x113, x110);</span> <span class="line" id="L311"> <span class="tok-kw">var</span> x128: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L312"> <span class="tok-kw">var</span> x129: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L313"> addcarryxU64(&x128, &x129, x127, x111, x108);</span> <span class="line" id="L314"> <span class="tok-kw">const</span> x130 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x129) + x109);</span> <span class="line" id="L315"> <span class="tok-kw">var</span> x131: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L316"> <span class="tok-kw">var</span> x132: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L317"> addcarryxU64(&x131, &x132, <span class="tok-number">0x0</span>, x92, x118);</span> <span class="line" id="L318"> <span class="tok-kw">var</span> x133: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L319"> <span class="tok-kw">var</span> x134: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L320"> addcarryxU64(&x133, &x134, x132, x94, x120);</span> <span class="line" id="L321"> <span class="tok-kw">var</span> x135: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L322"> <span class="tok-kw">var</span> x136: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L323"> addcarryxU64(&x135, &x136, x134, x96, x122);</span> <span class="line" id="L324"> <span class="tok-kw">var</span> x137: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L325"> <span class="tok-kw">var</span> x138: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L326"> addcarryxU64(&x137, &x138, x136, x98, x124);</span> <span class="line" id="L327"> <span class="tok-kw">var</span> x139: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L328"> <span class="tok-kw">var</span> x140: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L329"> addcarryxU64(&x139, &x140, x138, x100, x126);</span> <span class="line" id="L330"> <span class="tok-kw">var</span> x141: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L331"> <span class="tok-kw">var</span> x142: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L332"> addcarryxU64(&x141, &x142, x140, x102, x128);</span> <span class="line" id="L333"> <span class="tok-kw">var</span> x143: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L334"> <span class="tok-kw">var</span> x144: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L335"> addcarryxU64(&x143, &x144, x142, x104, x130);</span> <span class="line" id="L336"> <span class="tok-kw">const</span> x145 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x144) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x105));</span> <span class="line" id="L337"> <span class="tok-kw">var</span> x146: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L338"> <span class="tok-kw">var</span> x147: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L339"> mulxU64(&x146, &x147, x2, (arg2[<span class="tok-number">5</span>]));</span> <span class="line" id="L340"> <span class="tok-kw">var</span> x148: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L341"> <span class="tok-kw">var</span> x149: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L342"> mulxU64(&x148, &x149, x2, (arg2[<span class="tok-number">4</span>]));</span> <span class="line" id="L343"> <span class="tok-kw">var</span> x150: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L344"> <span class="tok-kw">var</span> x151: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L345"> mulxU64(&x150, &x151, x2, (arg2[<span class="tok-number">3</span>]));</span> <span class="line" id="L346"> <span class="tok-kw">var</span> x152: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L347"> <span class="tok-kw">var</span> x153: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L348"> mulxU64(&x152, &x153, x2, (arg2[<span class="tok-number">2</span>]));</span> <span class="line" id="L349"> <span class="tok-kw">var</span> x154: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L350"> <span class="tok-kw">var</span> x155: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L351"> mulxU64(&x154, &x155, x2, (arg2[<span class="tok-number">1</span>]));</span> <span class="line" id="L352"> <span class="tok-kw">var</span> x156: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L353"> <span class="tok-kw">var</span> x157: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L354"> mulxU64(&x156, &x157, x2, (arg2[<span class="tok-number">0</span>]));</span> <span class="line" id="L355"> <span class="tok-kw">var</span> x158: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L356"> <span class="tok-kw">var</span> x159: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L357"> addcarryxU64(&x158, &x159, <span class="tok-number">0x0</span>, x157, x154);</span> <span class="line" id="L358"> <span class="tok-kw">var</span> x160: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L359"> <span class="tok-kw">var</span> x161: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L360"> addcarryxU64(&x160, &x161, x159, x155, x152);</span> <span class="line" id="L361"> <span class="tok-kw">var</span> x162: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L362"> <span class="tok-kw">var</span> x163: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L363"> addcarryxU64(&x162, &x163, x161, x153, x150);</span> <span class="line" id="L364"> <span class="tok-kw">var</span> x164: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L365"> <span class="tok-kw">var</span> x165: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L366"> addcarryxU64(&x164, &x165, x163, x151, x148);</span> <span class="line" id="L367"> <span class="tok-kw">var</span> x166: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L368"> <span class="tok-kw">var</span> x167: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L369"> addcarryxU64(&x166, &x167, x165, x149, x146);</span> <span class="line" id="L370"> <span class="tok-kw">const</span> x168 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x167) + x147);</span> <span class="line" id="L371"> <span class="tok-kw">var</span> x169: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L372"> <span class="tok-kw">var</span> x170: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L373"> addcarryxU64(&x169, &x170, <span class="tok-number">0x0</span>, x133, x156);</span> <span class="line" id="L374"> <span class="tok-kw">var</span> x171: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L375"> <span class="tok-kw">var</span> x172: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L376"> addcarryxU64(&x171, &x172, x170, x135, x158);</span> <span class="line" id="L377"> <span class="tok-kw">var</span> x173: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L378"> <span class="tok-kw">var</span> x174: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L379"> addcarryxU64(&x173, &x174, x172, x137, x160);</span> <span class="line" id="L380"> <span class="tok-kw">var</span> x175: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L381"> <span class="tok-kw">var</span> x176: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L382"> addcarryxU64(&x175, &x176, x174, x139, x162);</span> <span class="line" id="L383"> <span class="tok-kw">var</span> x177: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L384"> <span class="tok-kw">var</span> x178: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L385"> addcarryxU64(&x177, &x178, x176, x141, x164);</span> <span class="line" id="L386"> <span class="tok-kw">var</span> x179: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L387"> <span class="tok-kw">var</span> x180: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L388"> addcarryxU64(&x179, &x180, x178, x143, x166);</span> <span class="line" id="L389"> <span class="tok-kw">var</span> x181: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L390"> <span class="tok-kw">var</span> x182: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L391"> addcarryxU64(&x181, &x182, x180, x145, x168);</span> <span class="line" id="L392"> <span class="tok-kw">var</span> x183: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L393"> <span class="tok-kw">var</span> x184: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L394"> mulxU64(&x183, &x184, x169, <span class="tok-number">0x6ed46089e88fdc45</span>);</span> <span class="line" id="L395"> <span class="tok-kw">var</span> x185: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L396"> <span class="tok-kw">var</span> x186: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L397"> mulxU64(&x185, &x186, x183, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L398"> <span class="tok-kw">var</span> x187: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L399"> <span class="tok-kw">var</span> x188: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L400"> mulxU64(&x187, &x188, x183, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L401"> <span class="tok-kw">var</span> x189: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L402"> <span class="tok-kw">var</span> x190: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L403"> mulxU64(&x189, &x190, x183, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L404"> <span class="tok-kw">var</span> x191: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L405"> <span class="tok-kw">var</span> x192: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L406"> mulxU64(&x191, &x192, x183, <span class="tok-number">0xc7634d81f4372ddf</span>);</span> <span class="line" id="L407"> <span class="tok-kw">var</span> x193: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L408"> <span class="tok-kw">var</span> x194: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L409"> mulxU64(&x193, &x194, x183, <span class="tok-number">0x581a0db248b0a77a</span>);</span> <span class="line" id="L410"> <span class="tok-kw">var</span> x195: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L411"> <span class="tok-kw">var</span> x196: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L412"> mulxU64(&x195, &x196, x183, <span class="tok-number">0xecec196accc52973</span>);</span> <span class="line" id="L413"> <span class="tok-kw">var</span> x197: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L414"> <span class="tok-kw">var</span> x198: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L415"> addcarryxU64(&x197, &x198, <span class="tok-number">0x0</span>, x196, x193);</span> <span class="line" id="L416"> <span class="tok-kw">var</span> x199: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L417"> <span class="tok-kw">var</span> x200: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L418"> addcarryxU64(&x199, &x200, x198, x194, x191);</span> <span class="line" id="L419"> <span class="tok-kw">var</span> x201: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L420"> <span class="tok-kw">var</span> x202: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L421"> addcarryxU64(&x201, &x202, x200, x192, x189);</span> <span class="line" id="L422"> <span class="tok-kw">var</span> x203: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L423"> <span class="tok-kw">var</span> x204: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L424"> addcarryxU64(&x203, &x204, x202, x190, x187);</span> <span class="line" id="L425"> <span class="tok-kw">var</span> x205: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L426"> <span class="tok-kw">var</span> x206: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L427"> addcarryxU64(&x205, &x206, x204, x188, x185);</span> <span class="line" id="L428"> <span class="tok-kw">const</span> x207 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x206) + x186);</span> <span class="line" id="L429"> <span class="tok-kw">var</span> x208: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L430"> <span class="tok-kw">var</span> x209: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L431"> addcarryxU64(&x208, &x209, <span class="tok-number">0x0</span>, x169, x195);</span> <span class="line" id="L432"> <span class="tok-kw">var</span> x210: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L433"> <span class="tok-kw">var</span> x211: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L434"> addcarryxU64(&x210, &x211, x209, x171, x197);</span> <span class="line" id="L435"> <span class="tok-kw">var</span> x212: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L436"> <span class="tok-kw">var</span> x213: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L437"> addcarryxU64(&x212, &x213, x211, x173, x199);</span> <span class="line" id="L438"> <span class="tok-kw">var</span> x214: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L439"> <span class="tok-kw">var</span> x215: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L440"> addcarryxU64(&x214, &x215, x213, x175, x201);</span> <span class="line" id="L441"> <span class="tok-kw">var</span> x216: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L442"> <span class="tok-kw">var</span> x217: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L443"> addcarryxU64(&x216, &x217, x215, x177, x203);</span> <span class="line" id="L444"> <span class="tok-kw">var</span> x218: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L445"> <span class="tok-kw">var</span> x219: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L446"> addcarryxU64(&x218, &x219, x217, x179, x205);</span> <span class="line" id="L447"> <span class="tok-kw">var</span> x220: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L448"> <span class="tok-kw">var</span> x221: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L449"> addcarryxU64(&x220, &x221, x219, x181, x207);</span> <span class="line" id="L450"> <span class="tok-kw">const</span> x222 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x221) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x182));</span> <span class="line" id="L451"> <span class="tok-kw">var</span> x223: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L452"> <span class="tok-kw">var</span> x224: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L453"> mulxU64(&x223, &x224, x3, (arg2[<span class="tok-number">5</span>]));</span> <span class="line" id="L454"> <span class="tok-kw">var</span> x225: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L455"> <span class="tok-kw">var</span> x226: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L456"> mulxU64(&x225, &x226, x3, (arg2[<span class="tok-number">4</span>]));</span> <span class="line" id="L457"> <span class="tok-kw">var</span> x227: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L458"> <span class="tok-kw">var</span> x228: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L459"> mulxU64(&x227, &x228, x3, (arg2[<span class="tok-number">3</span>]));</span> <span class="line" id="L460"> <span class="tok-kw">var</span> x229: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L461"> <span class="tok-kw">var</span> x230: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L462"> mulxU64(&x229, &x230, x3, (arg2[<span class="tok-number">2</span>]));</span> <span class="line" id="L463"> <span class="tok-kw">var</span> x231: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L464"> <span class="tok-kw">var</span> x232: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L465"> mulxU64(&x231, &x232, x3, (arg2[<span class="tok-number">1</span>]));</span> <span class="line" id="L466"> <span class="tok-kw">var</span> x233: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L467"> <span class="tok-kw">var</span> x234: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L468"> mulxU64(&x233, &x234, x3, (arg2[<span class="tok-number">0</span>]));</span> <span class="line" id="L469"> <span class="tok-kw">var</span> x235: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L470"> <span class="tok-kw">var</span> x236: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L471"> addcarryxU64(&x235, &x236, <span class="tok-number">0x0</span>, x234, x231);</span> <span class="line" id="L472"> <span class="tok-kw">var</span> x237: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L473"> <span class="tok-kw">var</span> x238: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L474"> addcarryxU64(&x237, &x238, x236, x232, x229);</span> <span class="line" id="L475"> <span class="tok-kw">var</span> x239: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L476"> <span class="tok-kw">var</span> x240: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L477"> addcarryxU64(&x239, &x240, x238, x230, x227);</span> <span class="line" id="L478"> <span class="tok-kw">var</span> x241: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L479"> <span class="tok-kw">var</span> x242: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L480"> addcarryxU64(&x241, &x242, x240, x228, x225);</span> <span class="line" id="L481"> <span class="tok-kw">var</span> x243: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L482"> <span class="tok-kw">var</span> x244: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L483"> addcarryxU64(&x243, &x244, x242, x226, x223);</span> <span class="line" id="L484"> <span class="tok-kw">const</span> x245 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x244) + x224);</span> <span class="line" id="L485"> <span class="tok-kw">var</span> x246: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L486"> <span class="tok-kw">var</span> x247: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L487"> addcarryxU64(&x246, &x247, <span class="tok-number">0x0</span>, x210, x233);</span> <span class="line" id="L488"> <span class="tok-kw">var</span> x248: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L489"> <span class="tok-kw">var</span> x249: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L490"> addcarryxU64(&x248, &x249, x247, x212, x235);</span> <span class="line" id="L491"> <span class="tok-kw">var</span> x250: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L492"> <span class="tok-kw">var</span> x251: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L493"> addcarryxU64(&x250, &x251, x249, x214, x237);</span> <span class="line" id="L494"> <span class="tok-kw">var</span> x252: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L495"> <span class="tok-kw">var</span> x253: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L496"> addcarryxU64(&x252, &x253, x251, x216, x239);</span> <span class="line" id="L497"> <span class="tok-kw">var</span> x254: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L498"> <span class="tok-kw">var</span> x255: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L499"> addcarryxU64(&x254, &x255, x253, x218, x241);</span> <span class="line" id="L500"> <span class="tok-kw">var</span> x256: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L501"> <span class="tok-kw">var</span> x257: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L502"> addcarryxU64(&x256, &x257, x255, x220, x243);</span> <span class="line" id="L503"> <span class="tok-kw">var</span> x258: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L504"> <span class="tok-kw">var</span> x259: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L505"> addcarryxU64(&x258, &x259, x257, x222, x245);</span> <span class="line" id="L506"> <span class="tok-kw">var</span> x260: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L507"> <span class="tok-kw">var</span> x261: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L508"> mulxU64(&x260, &x261, x246, <span class="tok-number">0x6ed46089e88fdc45</span>);</span> <span class="line" id="L509"> <span class="tok-kw">var</span> x262: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L510"> <span class="tok-kw">var</span> x263: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L511"> mulxU64(&x262, &x263, x260, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L512"> <span class="tok-kw">var</span> x264: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L513"> <span class="tok-kw">var</span> x265: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L514"> mulxU64(&x264, &x265, x260, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L515"> <span class="tok-kw">var</span> x266: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L516"> <span class="tok-kw">var</span> x267: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L517"> mulxU64(&x266, &x267, x260, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L518"> <span class="tok-kw">var</span> x268: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L519"> <span class="tok-kw">var</span> x269: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L520"> mulxU64(&x268, &x269, x260, <span class="tok-number">0xc7634d81f4372ddf</span>);</span> <span class="line" id="L521"> <span class="tok-kw">var</span> x270: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L522"> <span class="tok-kw">var</span> x271: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L523"> mulxU64(&x270, &x271, x260, <span class="tok-number">0x581a0db248b0a77a</span>);</span> <span class="line" id="L524"> <span class="tok-kw">var</span> x272: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L525"> <span class="tok-kw">var</span> x273: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L526"> mulxU64(&x272, &x273, x260, <span class="tok-number">0xecec196accc52973</span>);</span> <span class="line" id="L527"> <span class="tok-kw">var</span> x274: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L528"> <span class="tok-kw">var</span> x275: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L529"> addcarryxU64(&x274, &x275, <span class="tok-number">0x0</span>, x273, x270);</span> <span class="line" id="L530"> <span class="tok-kw">var</span> x276: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L531"> <span class="tok-kw">var</span> x277: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L532"> addcarryxU64(&x276, &x277, x275, x271, x268);</span> <span class="line" id="L533"> <span class="tok-kw">var</span> x278: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L534"> <span class="tok-kw">var</span> x279: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L535"> addcarryxU64(&x278, &x279, x277, x269, x266);</span> <span class="line" id="L536"> <span class="tok-kw">var</span> x280: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L537"> <span class="tok-kw">var</span> x281: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L538"> addcarryxU64(&x280, &x281, x279, x267, x264);</span> <span class="line" id="L539"> <span class="tok-kw">var</span> x282: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L540"> <span class="tok-kw">var</span> x283: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L541"> addcarryxU64(&x282, &x283, x281, x265, x262);</span> <span class="line" id="L542"> <span class="tok-kw">const</span> x284 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x283) + x263);</span> <span class="line" id="L543"> <span class="tok-kw">var</span> x285: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L544"> <span class="tok-kw">var</span> x286: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L545"> addcarryxU64(&x285, &x286, <span class="tok-number">0x0</span>, x246, x272);</span> <span class="line" id="L546"> <span class="tok-kw">var</span> x287: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L547"> <span class="tok-kw">var</span> x288: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L548"> addcarryxU64(&x287, &x288, x286, x248, x274);</span> <span class="line" id="L549"> <span class="tok-kw">var</span> x289: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L550"> <span class="tok-kw">var</span> x290: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L551"> addcarryxU64(&x289, &x290, x288, x250, x276);</span> <span class="line" id="L552"> <span class="tok-kw">var</span> x291: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L553"> <span class="tok-kw">var</span> x292: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L554"> addcarryxU64(&x291, &x292, x290, x252, x278);</span> <span class="line" id="L555"> <span class="tok-kw">var</span> x293: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L556"> <span class="tok-kw">var</span> x294: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L557"> addcarryxU64(&x293, &x294, x292, x254, x280);</span> <span class="line" id="L558"> <span class="tok-kw">var</span> x295: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L559"> <span class="tok-kw">var</span> x296: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L560"> addcarryxU64(&x295, &x296, x294, x256, x282);</span> <span class="line" id="L561"> <span class="tok-kw">var</span> x297: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L562"> <span class="tok-kw">var</span> x298: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L563"> addcarryxU64(&x297, &x298, x296, x258, x284);</span> <span class="line" id="L564"> <span class="tok-kw">const</span> x299 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x298) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x259));</span> <span class="line" id="L565"> <span class="tok-kw">var</span> x300: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L566"> <span class="tok-kw">var</span> x301: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L567"> mulxU64(&x300, &x301, x4, (arg2[<span class="tok-number">5</span>]));</span> <span class="line" id="L568"> <span class="tok-kw">var</span> x302: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L569"> <span class="tok-kw">var</span> x303: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L570"> mulxU64(&x302, &x303, x4, (arg2[<span class="tok-number">4</span>]));</span> <span class="line" id="L571"> <span class="tok-kw">var</span> x304: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L572"> <span class="tok-kw">var</span> x305: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L573"> mulxU64(&x304, &x305, x4, (arg2[<span class="tok-number">3</span>]));</span> <span class="line" id="L574"> <span class="tok-kw">var</span> x306: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L575"> <span class="tok-kw">var</span> x307: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L576"> mulxU64(&x306, &x307, x4, (arg2[<span class="tok-number">2</span>]));</span> <span class="line" id="L577"> <span class="tok-kw">var</span> x308: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L578"> <span class="tok-kw">var</span> x309: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L579"> mulxU64(&x308, &x309, x4, (arg2[<span class="tok-number">1</span>]));</span> <span class="line" id="L580"> <span class="tok-kw">var</span> x310: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L581"> <span class="tok-kw">var</span> x311: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L582"> mulxU64(&x310, &x311, x4, (arg2[<span class="tok-number">0</span>]));</span> <span class="line" id="L583"> <span class="tok-kw">var</span> x312: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L584"> <span class="tok-kw">var</span> x313: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L585"> addcarryxU64(&x312, &x313, <span class="tok-number">0x0</span>, x311, x308);</span> <span class="line" id="L586"> <span class="tok-kw">var</span> x314: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L587"> <span class="tok-kw">var</span> x315: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L588"> addcarryxU64(&x314, &x315, x313, x309, x306);</span> <span class="line" id="L589"> <span class="tok-kw">var</span> x316: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L590"> <span class="tok-kw">var</span> x317: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L591"> addcarryxU64(&x316, &x317, x315, x307, x304);</span> <span class="line" id="L592"> <span class="tok-kw">var</span> x318: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L593"> <span class="tok-kw">var</span> x319: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L594"> addcarryxU64(&x318, &x319, x317, x305, x302);</span> <span class="line" id="L595"> <span class="tok-kw">var</span> x320: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L596"> <span class="tok-kw">var</span> x321: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L597"> addcarryxU64(&x320, &x321, x319, x303, x300);</span> <span class="line" id="L598"> <span class="tok-kw">const</span> x322 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x321) + x301);</span> <span class="line" id="L599"> <span class="tok-kw">var</span> x323: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L600"> <span class="tok-kw">var</span> x324: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L601"> addcarryxU64(&x323, &x324, <span class="tok-number">0x0</span>, x287, x310);</span> <span class="line" id="L602"> <span class="tok-kw">var</span> x325: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L603"> <span class="tok-kw">var</span> x326: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L604"> addcarryxU64(&x325, &x326, x324, x289, x312);</span> <span class="line" id="L605"> <span class="tok-kw">var</span> x327: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L606"> <span class="tok-kw">var</span> x328: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L607"> addcarryxU64(&x327, &x328, x326, x291, x314);</span> <span class="line" id="L608"> <span class="tok-kw">var</span> x329: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L609"> <span class="tok-kw">var</span> x330: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L610"> addcarryxU64(&x329, &x330, x328, x293, x316);</span> <span class="line" id="L611"> <span class="tok-kw">var</span> x331: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L612"> <span class="tok-kw">var</span> x332: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L613"> addcarryxU64(&x331, &x332, x330, x295, x318);</span> <span class="line" id="L614"> <span class="tok-kw">var</span> x333: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L615"> <span class="tok-kw">var</span> x334: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L616"> addcarryxU64(&x333, &x334, x332, x297, x320);</span> <span class="line" id="L617"> <span class="tok-kw">var</span> x335: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L618"> <span class="tok-kw">var</span> x336: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L619"> addcarryxU64(&x335, &x336, x334, x299, x322);</span> <span class="line" id="L620"> <span class="tok-kw">var</span> x337: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L621"> <span class="tok-kw">var</span> x338: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L622"> mulxU64(&x337, &x338, x323, <span class="tok-number">0x6ed46089e88fdc45</span>);</span> <span class="line" id="L623"> <span class="tok-kw">var</span> x339: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L624"> <span class="tok-kw">var</span> x340: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L625"> mulxU64(&x339, &x340, x337, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L626"> <span class="tok-kw">var</span> x341: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L627"> <span class="tok-kw">var</span> x342: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L628"> mulxU64(&x341, &x342, x337, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L629"> <span class="tok-kw">var</span> x343: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L630"> <span class="tok-kw">var</span> x344: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L631"> mulxU64(&x343, &x344, x337, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L632"> <span class="tok-kw">var</span> x345: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L633"> <span class="tok-kw">var</span> x346: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L634"> mulxU64(&x345, &x346, x337, <span class="tok-number">0xc7634d81f4372ddf</span>);</span> <span class="line" id="L635"> <span class="tok-kw">var</span> x347: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L636"> <span class="tok-kw">var</span> x348: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L637"> mulxU64(&x347, &x348, x337, <span class="tok-number">0x581a0db248b0a77a</span>);</span> <span class="line" id="L638"> <span class="tok-kw">var</span> x349: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L639"> <span class="tok-kw">var</span> x350: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L640"> mulxU64(&x349, &x350, x337, <span class="tok-number">0xecec196accc52973</span>);</span> <span class="line" id="L641"> <span class="tok-kw">var</span> x351: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L642"> <span class="tok-kw">var</span> x352: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L643"> addcarryxU64(&x351, &x352, <span class="tok-number">0x0</span>, x350, x347);</span> <span class="line" id="L644"> <span class="tok-kw">var</span> x353: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L645"> <span class="tok-kw">var</span> x354: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L646"> addcarryxU64(&x353, &x354, x352, x348, x345);</span> <span class="line" id="L647"> <span class="tok-kw">var</span> x355: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L648"> <span class="tok-kw">var</span> x356: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L649"> addcarryxU64(&x355, &x356, x354, x346, x343);</span> <span class="line" id="L650"> <span class="tok-kw">var</span> x357: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L651"> <span class="tok-kw">var</span> x358: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L652"> addcarryxU64(&x357, &x358, x356, x344, x341);</span> <span class="line" id="L653"> <span class="tok-kw">var</span> x359: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L654"> <span class="tok-kw">var</span> x360: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L655"> addcarryxU64(&x359, &x360, x358, x342, x339);</span> <span class="line" id="L656"> <span class="tok-kw">const</span> x361 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x360) + x340);</span> <span class="line" id="L657"> <span class="tok-kw">var</span> x362: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L658"> <span class="tok-kw">var</span> x363: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L659"> addcarryxU64(&x362, &x363, <span class="tok-number">0x0</span>, x323, x349);</span> <span class="line" id="L660"> <span class="tok-kw">var</span> x364: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L661"> <span class="tok-kw">var</span> x365: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L662"> addcarryxU64(&x364, &x365, x363, x325, x351);</span> <span class="line" id="L663"> <span class="tok-kw">var</span> x366: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L664"> <span class="tok-kw">var</span> x367: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L665"> addcarryxU64(&x366, &x367, x365, x327, x353);</span> <span class="line" id="L666"> <span class="tok-kw">var</span> x368: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L667"> <span class="tok-kw">var</span> x369: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L668"> addcarryxU64(&x368, &x369, x367, x329, x355);</span> <span class="line" id="L669"> <span class="tok-kw">var</span> x370: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L670"> <span class="tok-kw">var</span> x371: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L671"> addcarryxU64(&x370, &x371, x369, x331, x357);</span> <span class="line" id="L672"> <span class="tok-kw">var</span> x372: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L673"> <span class="tok-kw">var</span> x373: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L674"> addcarryxU64(&x372, &x373, x371, x333, x359);</span> <span class="line" id="L675"> <span class="tok-kw">var</span> x374: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L676"> <span class="tok-kw">var</span> x375: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L677"> addcarryxU64(&x374, &x375, x373, x335, x361);</span> <span class="line" id="L678"> <span class="tok-kw">const</span> x376 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x375) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x336));</span> <span class="line" id="L679"> <span class="tok-kw">var</span> x377: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L680"> <span class="tok-kw">var</span> x378: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L681"> mulxU64(&x377, &x378, x5, (arg2[<span class="tok-number">5</span>]));</span> <span class="line" id="L682"> <span class="tok-kw">var</span> x379: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L683"> <span class="tok-kw">var</span> x380: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L684"> mulxU64(&x379, &x380, x5, (arg2[<span class="tok-number">4</span>]));</span> <span class="line" id="L685"> <span class="tok-kw">var</span> x381: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L686"> <span class="tok-kw">var</span> x382: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L687"> mulxU64(&x381, &x382, x5, (arg2[<span class="tok-number">3</span>]));</span> <span class="line" id="L688"> <span class="tok-kw">var</span> x383: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L689"> <span class="tok-kw">var</span> x384: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L690"> mulxU64(&x383, &x384, x5, (arg2[<span class="tok-number">2</span>]));</span> <span class="line" id="L691"> <span class="tok-kw">var</span> x385: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L692"> <span class="tok-kw">var</span> x386: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L693"> mulxU64(&x385, &x386, x5, (arg2[<span class="tok-number">1</span>]));</span> <span class="line" id="L694"> <span class="tok-kw">var</span> x387: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L695"> <span class="tok-kw">var</span> x388: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L696"> mulxU64(&x387, &x388, x5, (arg2[<span class="tok-number">0</span>]));</span> <span class="line" id="L697"> <span class="tok-kw">var</span> x389: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L698"> <span class="tok-kw">var</span> x390: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L699"> addcarryxU64(&x389, &x390, <span class="tok-number">0x0</span>, x388, x385);</span> <span class="line" id="L700"> <span class="tok-kw">var</span> x391: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L701"> <span class="tok-kw">var</span> x392: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L702"> addcarryxU64(&x391, &x392, x390, x386, x383);</span> <span class="line" id="L703"> <span class="tok-kw">var</span> x393: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L704"> <span class="tok-kw">var</span> x394: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L705"> addcarryxU64(&x393, &x394, x392, x384, x381);</span> <span class="line" id="L706"> <span class="tok-kw">var</span> x395: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L707"> <span class="tok-kw">var</span> x396: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L708"> addcarryxU64(&x395, &x396, x394, x382, x379);</span> <span class="line" id="L709"> <span class="tok-kw">var</span> x397: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L710"> <span class="tok-kw">var</span> x398: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L711"> addcarryxU64(&x397, &x398, x396, x380, x377);</span> <span class="line" id="L712"> <span class="tok-kw">const</span> x399 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x398) + x378);</span> <span class="line" id="L713"> <span class="tok-kw">var</span> x400: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L714"> <span class="tok-kw">var</span> x401: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L715"> addcarryxU64(&x400, &x401, <span class="tok-number">0x0</span>, x364, x387);</span> <span class="line" id="L716"> <span class="tok-kw">var</span> x402: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L717"> <span class="tok-kw">var</span> x403: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L718"> addcarryxU64(&x402, &x403, x401, x366, x389);</span> <span class="line" id="L719"> <span class="tok-kw">var</span> x404: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L720"> <span class="tok-kw">var</span> x405: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L721"> addcarryxU64(&x404, &x405, x403, x368, x391);</span> <span class="line" id="L722"> <span class="tok-kw">var</span> x406: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L723"> <span class="tok-kw">var</span> x407: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L724"> addcarryxU64(&x406, &x407, x405, x370, x393);</span> <span class="line" id="L725"> <span class="tok-kw">var</span> x408: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L726"> <span class="tok-kw">var</span> x409: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L727"> addcarryxU64(&x408, &x409, x407, x372, x395);</span> <span class="line" id="L728"> <span class="tok-kw">var</span> x410: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L729"> <span class="tok-kw">var</span> x411: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L730"> addcarryxU64(&x410, &x411, x409, x374, x397);</span> <span class="line" id="L731"> <span class="tok-kw">var</span> x412: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L732"> <span class="tok-kw">var</span> x413: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L733"> addcarryxU64(&x412, &x413, x411, x376, x399);</span> <span class="line" id="L734"> <span class="tok-kw">var</span> x414: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L735"> <span class="tok-kw">var</span> x415: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L736"> mulxU64(&x414, &x415, x400, <span class="tok-number">0x6ed46089e88fdc45</span>);</span> <span class="line" id="L737"> <span class="tok-kw">var</span> x416: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L738"> <span class="tok-kw">var</span> x417: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L739"> mulxU64(&x416, &x417, x414, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L740"> <span class="tok-kw">var</span> x418: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L741"> <span class="tok-kw">var</span> x419: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L742"> mulxU64(&x418, &x419, x414, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L743"> <span class="tok-kw">var</span> x420: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L744"> <span class="tok-kw">var</span> x421: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L745"> mulxU64(&x420, &x421, x414, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L746"> <span class="tok-kw">var</span> x422: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L747"> <span class="tok-kw">var</span> x423: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L748"> mulxU64(&x422, &x423, x414, <span class="tok-number">0xc7634d81f4372ddf</span>);</span> <span class="line" id="L749"> <span class="tok-kw">var</span> x424: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L750"> <span class="tok-kw">var</span> x425: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L751"> mulxU64(&x424, &x425, x414, <span class="tok-number">0x581a0db248b0a77a</span>);</span> <span class="line" id="L752"> <span class="tok-kw">var</span> x426: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L753"> <span class="tok-kw">var</span> x427: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L754"> mulxU64(&x426, &x427, x414, <span class="tok-number">0xecec196accc52973</span>);</span> <span class="line" id="L755"> <span class="tok-kw">var</span> x428: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L756"> <span class="tok-kw">var</span> x429: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L757"> addcarryxU64(&x428, &x429, <span class="tok-number">0x0</span>, x427, x424);</span> <span class="line" id="L758"> <span class="tok-kw">var</span> x430: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L759"> <span class="tok-kw">var</span> x431: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L760"> addcarryxU64(&x430, &x431, x429, x425, x422);</span> <span class="line" id="L761"> <span class="tok-kw">var</span> x432: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L762"> <span class="tok-kw">var</span> x433: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L763"> addcarryxU64(&x432, &x433, x431, x423, x420);</span> <span class="line" id="L764"> <span class="tok-kw">var</span> x434: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L765"> <span class="tok-kw">var</span> x435: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L766"> addcarryxU64(&x434, &x435, x433, x421, x418);</span> <span class="line" id="L767"> <span class="tok-kw">var</span> x436: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L768"> <span class="tok-kw">var</span> x437: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L769"> addcarryxU64(&x436, &x437, x435, x419, x416);</span> <span class="line" id="L770"> <span class="tok-kw">const</span> x438 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x437) + x417);</span> <span class="line" id="L771"> <span class="tok-kw">var</span> x439: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L772"> <span class="tok-kw">var</span> x440: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L773"> addcarryxU64(&x439, &x440, <span class="tok-number">0x0</span>, x400, x426);</span> <span class="line" id="L774"> <span class="tok-kw">var</span> x441: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L775"> <span class="tok-kw">var</span> x442: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L776"> addcarryxU64(&x441, &x442, x440, x402, x428);</span> <span class="line" id="L777"> <span class="tok-kw">var</span> x443: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L778"> <span class="tok-kw">var</span> x444: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L779"> addcarryxU64(&x443, &x444, x442, x404, x430);</span> <span class="line" id="L780"> <span class="tok-kw">var</span> x445: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L781"> <span class="tok-kw">var</span> x446: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L782"> addcarryxU64(&x445, &x446, x444, x406, x432);</span> <span class="line" id="L783"> <span class="tok-kw">var</span> x447: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L784"> <span class="tok-kw">var</span> x448: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L785"> addcarryxU64(&x447, &x448, x446, x408, x434);</span> <span class="line" id="L786"> <span class="tok-kw">var</span> x449: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L787"> <span class="tok-kw">var</span> x450: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L788"> addcarryxU64(&x449, &x450, x448, x410, x436);</span> <span class="line" id="L789"> <span class="tok-kw">var</span> x451: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L790"> <span class="tok-kw">var</span> x452: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L791"> addcarryxU64(&x451, &x452, x450, x412, x438);</span> <span class="line" id="L792"> <span class="tok-kw">const</span> x453 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x452) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x413));</span> <span class="line" id="L793"> <span class="tok-kw">var</span> x454: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L794"> <span class="tok-kw">var</span> x455: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L795"> subborrowxU64(&x454, &x455, <span class="tok-number">0x0</span>, x441, <span class="tok-number">0xecec196accc52973</span>);</span> <span class="line" id="L796"> <span class="tok-kw">var</span> x456: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L797"> <span class="tok-kw">var</span> x457: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L798"> subborrowxU64(&x456, &x457, x455, x443, <span class="tok-number">0x581a0db248b0a77a</span>);</span> <span class="line" id="L799"> <span class="tok-kw">var</span> x458: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L800"> <span class="tok-kw">var</span> x459: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L801"> subborrowxU64(&x458, &x459, x457, x445, <span class="tok-number">0xc7634d81f4372ddf</span>);</span> <span class="line" id="L802"> <span class="tok-kw">var</span> x460: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L803"> <span class="tok-kw">var</span> x461: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L804"> subborrowxU64(&x460, &x461, x459, x447, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L805"> <span class="tok-kw">var</span> x462: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L806"> <span class="tok-kw">var</span> x463: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L807"> subborrowxU64(&x462, &x463, x461, x449, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L808"> <span class="tok-kw">var</span> x464: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L809"> <span class="tok-kw">var</span> x465: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L810"> subborrowxU64(&x464, &x465, x463, x451, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L811"> <span class="tok-kw">var</span> x466: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L812"> <span class="tok-kw">var</span> x467: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L813"> subborrowxU64(&x466, &x467, x465, x453, <span class="tok-number">0x0</span>);</span> <span class="line" id="L814"> <span class="tok-kw">var</span> x468: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L815"> cmovznzU64(&x468, x467, x454, x441);</span> <span class="line" id="L816"> <span class="tok-kw">var</span> x469: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L817"> cmovznzU64(&x469, x467, x456, x443);</span> <span class="line" id="L818"> <span class="tok-kw">var</span> x470: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L819"> cmovznzU64(&x470, x467, x458, x445);</span> <span class="line" id="L820"> <span class="tok-kw">var</span> x471: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L821"> cmovznzU64(&x471, x467, x460, x447);</span> <span class="line" id="L822"> <span class="tok-kw">var</span> x472: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L823"> cmovznzU64(&x472, x467, x462, x449);</span> <span class="line" id="L824"> <span class="tok-kw">var</span> x473: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L825"> cmovznzU64(&x473, x467, x464, x451);</span> <span class="line" id="L826"> out1[<span class="tok-number">0</span>] = x468;</span> <span class="line" id="L827"> out1[<span class="tok-number">1</span>] = x469;</span> <span class="line" id="L828"> out1[<span class="tok-number">2</span>] = x470;</span> <span class="line" id="L829"> out1[<span class="tok-number">3</span>] = x471;</span> <span class="line" id="L830"> out1[<span class="tok-number">4</span>] = x472;</span> <span class="line" id="L831"> out1[<span class="tok-number">5</span>] = x473;</span> <span class="line" id="L832">}</span> <span class="line" id="L833"></span> <span class="line" id="L834"><span class="tok-comment">/// The function square squares a field element in the Montgomery domain.</span></span> <span class="line" id="L835"><span class="tok-comment">///</span></span> <span class="line" id="L836"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L837"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L838"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L839"><span class="tok-comment">/// eval (from_montgomery out1) mod m = (eval (from_montgomery arg1) eval (from_montgomery arg1)) mod m</span></span> <span class="line" id="L840"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L841"><span class="tok-comment">///</span></span> <span class="line" id="L842"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">square</span>(out1: MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L843"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L844"></span> <span class="line" id="L845"> <span class="tok-kw">const</span> x1 = (arg1[<span class="tok-number">1</span>]);</span> <span class="line" id="L846"> <span class="tok-kw">const</span> x2 = (arg1[<span class="tok-number">2</span>]);</span> <span class="line" id="L847"> <span class="tok-kw">const</span> x3 = (arg1[<span class="tok-number">3</span>]);</span> <span class="line" id="L848"> <span class="tok-kw">const</span> x4 = (arg1[<span class="tok-number">4</span>]);</span> <span class="line" id="L849"> <span class="tok-kw">const</span> x5 = (arg1[<span class="tok-number">5</span>]);</span> <span class="line" id="L850"> <span class="tok-kw">const</span> x6 = (arg1[<span class="tok-number">0</span>]);</span> <span class="line" id="L851"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L852"> <span class="tok-kw">var</span> x8: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L853"> mulxU64(&x7, &x8, x6, (arg1[<span class="tok-number">5</span>]));</span> <span class="line" id="L854"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L855"> <span class="tok-kw">var</span> x10: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L856"> mulxU64(&x9, &x10, x6, (arg1[<span class="tok-number">4</span>]));</span> <span class="line" id="L857"> <span class="tok-kw">var</span> x11: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L858"> <span class="tok-kw">var</span> x12: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L859"> mulxU64(&x11, &x12, x6, (arg1[<span class="tok-number">3</span>]));</span> <span class="line" id="L860"> <span class="tok-kw">var</span> x13: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L861"> <span class="tok-kw">var</span> x14: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L862"> mulxU64(&x13, &x14, x6, (arg1[<span class="tok-number">2</span>]));</span> <span class="line" id="L863"> <span class="tok-kw">var</span> x15: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L864"> <span class="tok-kw">var</span> x16: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L865"> mulxU64(&x15, &x16, x6, (arg1[<span class="tok-number">1</span>]));</span> <span class="line" id="L866"> <span class="tok-kw">var</span> x17: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L867"> <span class="tok-kw">var</span> x18: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L868"> mulxU64(&x17, &x18, x6, (arg1[<span class="tok-number">0</span>]));</span> <span class="line" id="L869"> <span class="tok-kw">var</span> x19: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L870"> <span class="tok-kw">var</span> x20: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L871"> addcarryxU64(&x19, &x20, <span class="tok-number">0x0</span>, x18, x15);</span> <span class="line" id="L872"> <span class="tok-kw">var</span> x21: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L873"> <span class="tok-kw">var</span> x22: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L874"> addcarryxU64(&x21, &x22, x20, x16, x13);</span> <span class="line" id="L875"> <span class="tok-kw">var</span> x23: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L876"> <span class="tok-kw">var</span> x24: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L877"> addcarryxU64(&x23, &x24, x22, x14, x11);</span> <span class="line" id="L878"> <span class="tok-kw">var</span> x25: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L879"> <span class="tok-kw">var</span> x26: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L880"> addcarryxU64(&x25, &x26, x24, x12, x9);</span> <span class="line" id="L881"> <span class="tok-kw">var</span> x27: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L882"> <span class="tok-kw">var</span> x28: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L883"> addcarryxU64(&x27, &x28, x26, x10, x7);</span> <span class="line" id="L884"> <span class="tok-kw">const</span> x29 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x28) + x8);</span> <span class="line" id="L885"> <span class="tok-kw">var</span> x30: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L886"> <span class="tok-kw">var</span> x31: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L887"> mulxU64(&x30, &x31, x17, <span class="tok-number">0x6ed46089e88fdc45</span>);</span> <span class="line" id="L888"> <span class="tok-kw">var</span> x32: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L889"> <span class="tok-kw">var</span> x33: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L890"> mulxU64(&x32, &x33, x30, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L891"> <span class="tok-kw">var</span> x34: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L892"> <span class="tok-kw">var</span> x35: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L893"> mulxU64(&x34, &x35, x30, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L894"> <span class="tok-kw">var</span> x36: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L895"> <span class="tok-kw">var</span> x37: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L896"> mulxU64(&x36, &x37, x30, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L897"> <span class="tok-kw">var</span> x38: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L898"> <span class="tok-kw">var</span> x39: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L899"> mulxU64(&x38, &x39, x30, <span class="tok-number">0xc7634d81f4372ddf</span>);</span> <span class="line" id="L900"> <span class="tok-kw">var</span> x40: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L901"> <span class="tok-kw">var</span> x41: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L902"> mulxU64(&x40, &x41, x30, <span class="tok-number">0x581a0db248b0a77a</span>);</span> <span class="line" id="L903"> <span class="tok-kw">var</span> x42: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L904"> <span class="tok-kw">var</span> x43: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L905"> mulxU64(&x42, &x43, x30, <span class="tok-number">0xecec196accc52973</span>);</span> <span class="line" id="L906"> <span class="tok-kw">var</span> x44: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L907"> <span class="tok-kw">var</span> x45: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L908"> addcarryxU64(&x44, &x45, <span class="tok-number">0x0</span>, x43, x40);</span> <span class="line" id="L909"> <span class="tok-kw">var</span> x46: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L910"> <span class="tok-kw">var</span> x47: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L911"> addcarryxU64(&x46, &x47, x45, x41, x38);</span> <span class="line" id="L912"> <span class="tok-kw">var</span> x48: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L913"> <span class="tok-kw">var</span> x49: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L914"> addcarryxU64(&x48, &x49, x47, x39, x36);</span> <span class="line" id="L915"> <span class="tok-kw">var</span> x50: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L916"> <span class="tok-kw">var</span> x51: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L917"> addcarryxU64(&x50, &x51, x49, x37, x34);</span> <span class="line" id="L918"> <span class="tok-kw">var</span> x52: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L919"> <span class="tok-kw">var</span> x53: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L920"> addcarryxU64(&x52, &x53, x51, x35, x32);</span> <span class="line" id="L921"> <span class="tok-kw">const</span> x54 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x53) + x33);</span> <span class="line" id="L922"> <span class="tok-kw">var</span> x55: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L923"> <span class="tok-kw">var</span> x56: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L924"> addcarryxU64(&x55, &x56, <span class="tok-number">0x0</span>, x17, x42);</span> <span class="line" id="L925"> <span class="tok-kw">var</span> x57: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L926"> <span class="tok-kw">var</span> x58: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L927"> addcarryxU64(&x57, &x58, x56, x19, x44);</span> <span class="line" id="L928"> <span class="tok-kw">var</span> x59: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L929"> <span class="tok-kw">var</span> x60: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L930"> addcarryxU64(&x59, &x60, x58, x21, x46);</span> <span class="line" id="L931"> <span class="tok-kw">var</span> x61: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L932"> <span class="tok-kw">var</span> x62: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L933"> addcarryxU64(&x61, &x62, x60, x23, x48);</span> <span class="line" id="L934"> <span class="tok-kw">var</span> x63: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L935"> <span class="tok-kw">var</span> x64: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L936"> addcarryxU64(&x63, &x64, x62, x25, x50);</span> <span class="line" id="L937"> <span class="tok-kw">var</span> x65: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L938"> <span class="tok-kw">var</span> x66: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L939"> addcarryxU64(&x65, &x66, x64, x27, x52);</span> <span class="line" id="L940"> <span class="tok-kw">var</span> x67: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L941"> <span class="tok-kw">var</span> x68: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L942"> addcarryxU64(&x67, &x68, x66, x29, x54);</span> <span class="line" id="L943"> <span class="tok-kw">var</span> x69: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L944"> <span class="tok-kw">var</span> x70: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L945"> mulxU64(&x69, &x70, x1, (arg1[<span class="tok-number">5</span>]));</span> <span class="line" id="L946"> <span class="tok-kw">var</span> x71: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L947"> <span class="tok-kw">var</span> x72: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L948"> mulxU64(&x71, &x72, x1, (arg1[<span class="tok-number">4</span>]));</span> <span class="line" id="L949"> <span class="tok-kw">var</span> x73: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L950"> <span class="tok-kw">var</span> x74: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L951"> mulxU64(&x73, &x74, x1, (arg1[<span class="tok-number">3</span>]));</span> <span class="line" id="L952"> <span class="tok-kw">var</span> x75: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L953"> <span class="tok-kw">var</span> x76: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L954"> mulxU64(&x75, &x76, x1, (arg1[<span class="tok-number">2</span>]));</span> <span class="line" id="L955"> <span class="tok-kw">var</span> x77: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L956"> <span class="tok-kw">var</span> x78: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L957"> mulxU64(&x77, &x78, x1, (arg1[<span class="tok-number">1</span>]));</span> <span class="line" id="L958"> <span class="tok-kw">var</span> x79: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L959"> <span class="tok-kw">var</span> x80: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L960"> mulxU64(&x79, &x80, x1, (arg1[<span class="tok-number">0</span>]));</span> <span class="line" id="L961"> <span class="tok-kw">var</span> x81: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L962"> <span class="tok-kw">var</span> x82: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L963"> addcarryxU64(&x81, &x82, <span class="tok-number">0x0</span>, x80, x77);</span> <span class="line" id="L964"> <span class="tok-kw">var</span> x83: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L965"> <span class="tok-kw">var</span> x84: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L966"> addcarryxU64(&x83, &x84, x82, x78, x75);</span> <span class="line" id="L967"> <span class="tok-kw">var</span> x85: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L968"> <span class="tok-kw">var</span> x86: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L969"> addcarryxU64(&x85, &x86, x84, x76, x73);</span> <span class="line" id="L970"> <span class="tok-kw">var</span> x87: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L971"> <span class="tok-kw">var</span> x88: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L972"> addcarryxU64(&x87, &x88, x86, x74, x71);</span> <span class="line" id="L973"> <span class="tok-kw">var</span> x89: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L974"> <span class="tok-kw">var</span> x90: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L975"> addcarryxU64(&x89, &x90, x88, x72, x69);</span> <span class="line" id="L976"> <span class="tok-kw">const</span> x91 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x90) + x70);</span> <span class="line" id="L977"> <span class="tok-kw">var</span> x92: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L978"> <span class="tok-kw">var</span> x93: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L979"> addcarryxU64(&x92, &x93, <span class="tok-number">0x0</span>, x57, x79);</span> <span class="line" id="L980"> <span class="tok-kw">var</span> x94: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L981"> <span class="tok-kw">var</span> x95: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L982"> addcarryxU64(&x94, &x95, x93, x59, x81);</span> <span class="line" id="L983"> <span class="tok-kw">var</span> x96: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L984"> <span class="tok-kw">var</span> x97: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L985"> addcarryxU64(&x96, &x97, x95, x61, x83);</span> <span class="line" id="L986"> <span class="tok-kw">var</span> x98: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L987"> <span class="tok-kw">var</span> x99: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L988"> addcarryxU64(&x98, &x99, x97, x63, x85);</span> <span class="line" id="L989"> <span class="tok-kw">var</span> x100: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L990"> <span class="tok-kw">var</span> x101: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L991"> addcarryxU64(&x100, &x101, x99, x65, x87);</span> <span class="line" id="L992"> <span class="tok-kw">var</span> x102: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L993"> <span class="tok-kw">var</span> x103: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L994"> addcarryxU64(&x102, &x103, x101, x67, x89);</span> <span class="line" id="L995"> <span class="tok-kw">var</span> x104: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L996"> <span class="tok-kw">var</span> x105: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L997"> addcarryxU64(&x104, &x105, x103, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x68), x91);</span> <span class="line" id="L998"> <span class="tok-kw">var</span> x106: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L999"> <span class="tok-kw">var</span> x107: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1000"> mulxU64(&x106, &x107, x92, <span class="tok-number">0x6ed46089e88fdc45</span>);</span> <span class="line" id="L1001"> <span class="tok-kw">var</span> x108: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1002"> <span class="tok-kw">var</span> x109: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1003"> mulxU64(&x108, &x109, x106, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1004"> <span class="tok-kw">var</span> x110: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1005"> <span class="tok-kw">var</span> x111: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1006"> mulxU64(&x110, &x111, x106, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1007"> <span class="tok-kw">var</span> x112: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1008"> <span class="tok-kw">var</span> x113: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1009"> mulxU64(&x112, &x113, x106, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1010"> <span class="tok-kw">var</span> x114: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1011"> <span class="tok-kw">var</span> x115: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1012"> mulxU64(&x114, &x115, x106, <span class="tok-number">0xc7634d81f4372ddf</span>);</span> <span class="line" id="L1013"> <span class="tok-kw">var</span> x116: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1014"> <span class="tok-kw">var</span> x117: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1015"> mulxU64(&x116, &x117, x106, <span class="tok-number">0x581a0db248b0a77a</span>);</span> <span class="line" id="L1016"> <span class="tok-kw">var</span> x118: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1017"> <span class="tok-kw">var</span> x119: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1018"> mulxU64(&x118, &x119, x106, <span class="tok-number">0xecec196accc52973</span>);</span> <span class="line" id="L1019"> <span class="tok-kw">var</span> x120: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1020"> <span class="tok-kw">var</span> x121: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1021"> addcarryxU64(&x120, &x121, <span class="tok-number">0x0</span>, x119, x116);</span> <span class="line" id="L1022"> <span class="tok-kw">var</span> x122: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1023"> <span class="tok-kw">var</span> x123: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1024"> addcarryxU64(&x122, &x123, x121, x117, x114);</span> <span class="line" id="L1025"> <span class="tok-kw">var</span> x124: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1026"> <span class="tok-kw">var</span> x125: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1027"> addcarryxU64(&x124, &x125, x123, x115, x112);</span> <span class="line" id="L1028"> <span class="tok-kw">var</span> x126: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1029"> <span class="tok-kw">var</span> x127: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1030"> addcarryxU64(&x126, &x127, x125, x113, x110);</span> <span class="line" id="L1031"> <span class="tok-kw">var</span> x128: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1032"> <span class="tok-kw">var</span> x129: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1033"> addcarryxU64(&x128, &x129, x127, x111, x108);</span> <span class="line" id="L1034"> <span class="tok-kw">const</span> x130 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x129) + x109);</span> <span class="line" id="L1035"> <span class="tok-kw">var</span> x131: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1036"> <span class="tok-kw">var</span> x132: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1037"> addcarryxU64(&x131, &x132, <span class="tok-number">0x0</span>, x92, x118);</span> <span class="line" id="L1038"> <span class="tok-kw">var</span> x133: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1039"> <span class="tok-kw">var</span> x134: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1040"> addcarryxU64(&x133, &x134, x132, x94, x120);</span> <span class="line" id="L1041"> <span class="tok-kw">var</span> x135: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1042"> <span class="tok-kw">var</span> x136: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1043"> addcarryxU64(&x135, &x136, x134, x96, x122);</span> <span class="line" id="L1044"> <span class="tok-kw">var</span> x137: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1045"> <span class="tok-kw">var</span> x138: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1046"> addcarryxU64(&x137, &x138, x136, x98, x124);</span> <span class="line" id="L1047"> <span class="tok-kw">var</span> x139: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1048"> <span class="tok-kw">var</span> x140: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1049"> addcarryxU64(&x139, &x140, x138, x100, x126);</span> <span class="line" id="L1050"> <span class="tok-kw">var</span> x141: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1051"> <span class="tok-kw">var</span> x142: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1052"> addcarryxU64(&x141, &x142, x140, x102, x128);</span> <span class="line" id="L1053"> <span class="tok-kw">var</span> x143: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1054"> <span class="tok-kw">var</span> x144: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1055"> addcarryxU64(&x143, &x144, x142, x104, x130);</span> <span class="line" id="L1056"> <span class="tok-kw">const</span> x145 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x144) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x105));</span> <span class="line" id="L1057"> <span class="tok-kw">var</span> x146: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1058"> <span class="tok-kw">var</span> x147: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1059"> mulxU64(&x146, &x147, x2, (arg1[<span class="tok-number">5</span>]));</span> <span class="line" id="L1060"> <span class="tok-kw">var</span> x148: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1061"> <span class="tok-kw">var</span> x149: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1062"> mulxU64(&x148, &x149, x2, (arg1[<span class="tok-number">4</span>]));</span> <span class="line" id="L1063"> <span class="tok-kw">var</span> x150: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1064"> <span class="tok-kw">var</span> x151: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1065"> mulxU64(&x150, &x151, x2, (arg1[<span class="tok-number">3</span>]));</span> <span class="line" id="L1066"> <span class="tok-kw">var</span> x152: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1067"> <span class="tok-kw">var</span> x153: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1068"> mulxU64(&x152, &x153, x2, (arg1[<span class="tok-number">2</span>]));</span> <span class="line" id="L1069"> <span class="tok-kw">var</span> x154: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1070"> <span class="tok-kw">var</span> x155: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1071"> mulxU64(&x154, &x155, x2, (arg1[<span class="tok-number">1</span>]));</span> <span class="line" id="L1072"> <span class="tok-kw">var</span> x156: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1073"> <span class="tok-kw">var</span> x157: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1074"> mulxU64(&x156, &x157, x2, (arg1[<span class="tok-number">0</span>]));</span> <span class="line" id="L1075"> <span class="tok-kw">var</span> x158: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1076"> <span class="tok-kw">var</span> x159: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1077"> addcarryxU64(&x158, &x159, <span class="tok-number">0x0</span>, x157, x154);</span> <span class="line" id="L1078"> <span class="tok-kw">var</span> x160: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1079"> <span class="tok-kw">var</span> x161: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1080"> addcarryxU64(&x160, &x161, x159, x155, x152);</span> <span class="line" id="L1081"> <span class="tok-kw">var</span> x162: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1082"> <span class="tok-kw">var</span> x163: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1083"> addcarryxU64(&x162, &x163, x161, x153, x150);</span> <span class="line" id="L1084"> <span class="tok-kw">var</span> x164: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1085"> <span class="tok-kw">var</span> x165: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1086"> addcarryxU64(&x164, &x165, x163, x151, x148);</span> <span class="line" id="L1087"> <span class="tok-kw">var</span> x166: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1088"> <span class="tok-kw">var</span> x167: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1089"> addcarryxU64(&x166, &x167, x165, x149, x146);</span> <span class="line" id="L1090"> <span class="tok-kw">const</span> x168 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x167) + x147);</span> <span class="line" id="L1091"> <span class="tok-kw">var</span> x169: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1092"> <span class="tok-kw">var</span> x170: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1093"> addcarryxU64(&x169, &x170, <span class="tok-number">0x0</span>, x133, x156);</span> <span class="line" id="L1094"> <span class="tok-kw">var</span> x171: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1095"> <span class="tok-kw">var</span> x172: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1096"> addcarryxU64(&x171, &x172, x170, x135, x158);</span> <span class="line" id="L1097"> <span class="tok-kw">var</span> x173: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1098"> <span class="tok-kw">var</span> x174: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1099"> addcarryxU64(&x173, &x174, x172, x137, x160);</span> <span class="line" id="L1100"> <span class="tok-kw">var</span> x175: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1101"> <span class="tok-kw">var</span> x176: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1102"> addcarryxU64(&x175, &x176, x174, x139, x162);</span> <span class="line" id="L1103"> <span class="tok-kw">var</span> x177: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1104"> <span class="tok-kw">var</span> x178: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1105"> addcarryxU64(&x177, &x178, x176, x141, x164);</span> <span class="line" id="L1106"> <span class="tok-kw">var</span> x179: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1107"> <span class="tok-kw">var</span> x180: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1108"> addcarryxU64(&x179, &x180, x178, x143, x166);</span> <span class="line" id="L1109"> <span class="tok-kw">var</span> x181: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1110"> <span class="tok-kw">var</span> x182: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1111"> addcarryxU64(&x181, &x182, x180, x145, x168);</span> <span class="line" id="L1112"> <span class="tok-kw">var</span> x183: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1113"> <span class="tok-kw">var</span> x184: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1114"> mulxU64(&x183, &x184, x169, <span class="tok-number">0x6ed46089e88fdc45</span>);</span> <span class="line" id="L1115"> <span class="tok-kw">var</span> x185: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1116"> <span class="tok-kw">var</span> x186: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1117"> mulxU64(&x185, &x186, x183, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1118"> <span class="tok-kw">var</span> x187: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1119"> <span class="tok-kw">var</span> x188: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1120"> mulxU64(&x187, &x188, x183, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1121"> <span class="tok-kw">var</span> x189: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1122"> <span class="tok-kw">var</span> x190: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1123"> mulxU64(&x189, &x190, x183, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1124"> <span class="tok-kw">var</span> x191: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1125"> <span class="tok-kw">var</span> x192: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1126"> mulxU64(&x191, &x192, x183, <span class="tok-number">0xc7634d81f4372ddf</span>);</span> <span class="line" id="L1127"> <span class="tok-kw">var</span> x193: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1128"> <span class="tok-kw">var</span> x194: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1129"> mulxU64(&x193, &x194, x183, <span class="tok-number">0x581a0db248b0a77a</span>);</span> <span class="line" id="L1130"> <span class="tok-kw">var</span> x195: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1131"> <span class="tok-kw">var</span> x196: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1132"> mulxU64(&x195, &x196, x183, <span class="tok-number">0xecec196accc52973</span>);</span> <span class="line" id="L1133"> <span class="tok-kw">var</span> x197: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1134"> <span class="tok-kw">var</span> x198: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1135"> addcarryxU64(&x197, &x198, <span class="tok-number">0x0</span>, x196, x193);</span> <span class="line" id="L1136"> <span class="tok-kw">var</span> x199: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1137"> <span class="tok-kw">var</span> x200: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1138"> addcarryxU64(&x199, &x200, x198, x194, x191);</span> <span class="line" id="L1139"> <span class="tok-kw">var</span> x201: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1140"> <span class="tok-kw">var</span> x202: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1141"> addcarryxU64(&x201, &x202, x200, x192, x189);</span> <span class="line" id="L1142"> <span class="tok-kw">var</span> x203: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1143"> <span class="tok-kw">var</span> x204: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1144"> addcarryxU64(&x203, &x204, x202, x190, x187);</span> <span class="line" id="L1145"> <span class="tok-kw">var</span> x205: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1146"> <span class="tok-kw">var</span> x206: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1147"> addcarryxU64(&x205, &x206, x204, x188, x185);</span> <span class="line" id="L1148"> <span class="tok-kw">const</span> x207 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x206) + x186);</span> <span class="line" id="L1149"> <span class="tok-kw">var</span> x208: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1150"> <span class="tok-kw">var</span> x209: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1151"> addcarryxU64(&x208, &x209, <span class="tok-number">0x0</span>, x169, x195);</span> <span class="line" id="L1152"> <span class="tok-kw">var</span> x210: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1153"> <span class="tok-kw">var</span> x211: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1154"> addcarryxU64(&x210, &x211, x209, x171, x197);</span> <span class="line" id="L1155"> <span class="tok-kw">var</span> x212: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1156"> <span class="tok-kw">var</span> x213: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1157"> addcarryxU64(&x212, &x213, x211, x173, x199);</span> <span class="line" id="L1158"> <span class="tok-kw">var</span> x214: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1159"> <span class="tok-kw">var</span> x215: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1160"> addcarryxU64(&x214, &x215, x213, x175, x201);</span> <span class="line" id="L1161"> <span class="tok-kw">var</span> x216: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1162"> <span class="tok-kw">var</span> x217: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1163"> addcarryxU64(&x216, &x217, x215, x177, x203);</span> <span class="line" id="L1164"> <span class="tok-kw">var</span> x218: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1165"> <span class="tok-kw">var</span> x219: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1166"> addcarryxU64(&x218, &x219, x217, x179, x205);</span> <span class="line" id="L1167"> <span class="tok-kw">var</span> x220: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1168"> <span class="tok-kw">var</span> x221: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1169"> addcarryxU64(&x220, &x221, x219, x181, x207);</span> <span class="line" id="L1170"> <span class="tok-kw">const</span> x222 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x221) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x182));</span> <span class="line" id="L1171"> <span class="tok-kw">var</span> x223: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1172"> <span class="tok-kw">var</span> x224: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1173"> mulxU64(&x223, &x224, x3, (arg1[<span class="tok-number">5</span>]));</span> <span class="line" id="L1174"> <span class="tok-kw">var</span> x225: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1175"> <span class="tok-kw">var</span> x226: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1176"> mulxU64(&x225, &x226, x3, (arg1[<span class="tok-number">4</span>]));</span> <span class="line" id="L1177"> <span class="tok-kw">var</span> x227: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1178"> <span class="tok-kw">var</span> x228: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1179"> mulxU64(&x227, &x228, x3, (arg1[<span class="tok-number">3</span>]));</span> <span class="line" id="L1180"> <span class="tok-kw">var</span> x229: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1181"> <span class="tok-kw">var</span> x230: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1182"> mulxU64(&x229, &x230, x3, (arg1[<span class="tok-number">2</span>]));</span> <span class="line" id="L1183"> <span class="tok-kw">var</span> x231: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1184"> <span class="tok-kw">var</span> x232: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1185"> mulxU64(&x231, &x232, x3, (arg1[<span class="tok-number">1</span>]));</span> <span class="line" id="L1186"> <span class="tok-kw">var</span> x233: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1187"> <span class="tok-kw">var</span> x234: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1188"> mulxU64(&x233, &x234, x3, (arg1[<span class="tok-number">0</span>]));</span> <span class="line" id="L1189"> <span class="tok-kw">var</span> x235: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1190"> <span class="tok-kw">var</span> x236: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1191"> addcarryxU64(&x235, &x236, <span class="tok-number">0x0</span>, x234, x231);</span> <span class="line" id="L1192"> <span class="tok-kw">var</span> x237: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1193"> <span class="tok-kw">var</span> x238: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1194"> addcarryxU64(&x237, &x238, x236, x232, x229);</span> <span class="line" id="L1195"> <span class="tok-kw">var</span> x239: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1196"> <span class="tok-kw">var</span> x240: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1197"> addcarryxU64(&x239, &x240, x238, x230, x227);</span> <span class="line" id="L1198"> <span class="tok-kw">var</span> x241: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1199"> <span class="tok-kw">var</span> x242: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1200"> addcarryxU64(&x241, &x242, x240, x228, x225);</span> <span class="line" id="L1201"> <span class="tok-kw">var</span> x243: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1202"> <span class="tok-kw">var</span> x244: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1203"> addcarryxU64(&x243, &x244, x242, x226, x223);</span> <span class="line" id="L1204"> <span class="tok-kw">const</span> x245 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x244) + x224);</span> <span class="line" id="L1205"> <span class="tok-kw">var</span> x246: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1206"> <span class="tok-kw">var</span> x247: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1207"> addcarryxU64(&x246, &x247, <span class="tok-number">0x0</span>, x210, x233);</span> <span class="line" id="L1208"> <span class="tok-kw">var</span> x248: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1209"> <span class="tok-kw">var</span> x249: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1210"> addcarryxU64(&x248, &x249, x247, x212, x235);</span> <span class="line" id="L1211"> <span class="tok-kw">var</span> x250: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1212"> <span class="tok-kw">var</span> x251: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1213"> addcarryxU64(&x250, &x251, x249, x214, x237);</span> <span class="line" id="L1214"> <span class="tok-kw">var</span> x252: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1215"> <span class="tok-kw">var</span> x253: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1216"> addcarryxU64(&x252, &x253, x251, x216, x239);</span> <span class="line" id="L1217"> <span class="tok-kw">var</span> x254: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1218"> <span class="tok-kw">var</span> x255: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1219"> addcarryxU64(&x254, &x255, x253, x218, x241);</span> <span class="line" id="L1220"> <span class="tok-kw">var</span> x256: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1221"> <span class="tok-kw">var</span> x257: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1222"> addcarryxU64(&x256, &x257, x255, x220, x243);</span> <span class="line" id="L1223"> <span class="tok-kw">var</span> x258: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1224"> <span class="tok-kw">var</span> x259: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1225"> addcarryxU64(&x258, &x259, x257, x222, x245);</span> <span class="line" id="L1226"> <span class="tok-kw">var</span> x260: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1227"> <span class="tok-kw">var</span> x261: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1228"> mulxU64(&x260, &x261, x246, <span class="tok-number">0x6ed46089e88fdc45</span>);</span> <span class="line" id="L1229"> <span class="tok-kw">var</span> x262: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1230"> <span class="tok-kw">var</span> x263: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1231"> mulxU64(&x262, &x263, x260, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1232"> <span class="tok-kw">var</span> x264: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1233"> <span class="tok-kw">var</span> x265: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1234"> mulxU64(&x264, &x265, x260, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1235"> <span class="tok-kw">var</span> x266: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1236"> <span class="tok-kw">var</span> x267: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1237"> mulxU64(&x266, &x267, x260, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1238"> <span class="tok-kw">var</span> x268: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1239"> <span class="tok-kw">var</span> x269: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1240"> mulxU64(&x268, &x269, x260, <span class="tok-number">0xc7634d81f4372ddf</span>);</span> <span class="line" id="L1241"> <span class="tok-kw">var</span> x270: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1242"> <span class="tok-kw">var</span> x271: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1243"> mulxU64(&x270, &x271, x260, <span class="tok-number">0x581a0db248b0a77a</span>);</span> <span class="line" id="L1244"> <span class="tok-kw">var</span> x272: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1245"> <span class="tok-kw">var</span> x273: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1246"> mulxU64(&x272, &x273, x260, <span class="tok-number">0xecec196accc52973</span>);</span> <span class="line" id="L1247"> <span class="tok-kw">var</span> x274: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1248"> <span class="tok-kw">var</span> x275: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1249"> addcarryxU64(&x274, &x275, <span class="tok-number">0x0</span>, x273, x270);</span> <span class="line" id="L1250"> <span class="tok-kw">var</span> x276: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1251"> <span class="tok-kw">var</span> x277: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1252"> addcarryxU64(&x276, &x277, x275, x271, x268);</span> <span class="line" id="L1253"> <span class="tok-kw">var</span> x278: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1254"> <span class="tok-kw">var</span> x279: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1255"> addcarryxU64(&x278, &x279, x277, x269, x266);</span> <span class="line" id="L1256"> <span class="tok-kw">var</span> x280: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1257"> <span class="tok-kw">var</span> x281: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1258"> addcarryxU64(&x280, &x281, x279, x267, x264);</span> <span class="line" id="L1259"> <span class="tok-kw">var</span> x282: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1260"> <span class="tok-kw">var</span> x283: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1261"> addcarryxU64(&x282, &x283, x281, x265, x262);</span> <span class="line" id="L1262"> <span class="tok-kw">const</span> x284 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x283) + x263);</span> <span class="line" id="L1263"> <span class="tok-kw">var</span> x285: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1264"> <span class="tok-kw">var</span> x286: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1265"> addcarryxU64(&x285, &x286, <span class="tok-number">0x0</span>, x246, x272);</span> <span class="line" id="L1266"> <span class="tok-kw">var</span> x287: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1267"> <span class="tok-kw">var</span> x288: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1268"> addcarryxU64(&x287, &x288, x286, x248, x274);</span> <span class="line" id="L1269"> <span class="tok-kw">var</span> x289: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1270"> <span class="tok-kw">var</span> x290: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1271"> addcarryxU64(&x289, &x290, x288, x250, x276);</span> <span class="line" id="L1272"> <span class="tok-kw">var</span> x291: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1273"> <span class="tok-kw">var</span> x292: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1274"> addcarryxU64(&x291, &x292, x290, x252, x278);</span> <span class="line" id="L1275"> <span class="tok-kw">var</span> x293: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1276"> <span class="tok-kw">var</span> x294: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1277"> addcarryxU64(&x293, &x294, x292, x254, x280);</span> <span class="line" id="L1278"> <span class="tok-kw">var</span> x295: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1279"> <span class="tok-kw">var</span> x296: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1280"> addcarryxU64(&x295, &x296, x294, x256, x282);</span> <span class="line" id="L1281"> <span class="tok-kw">var</span> x297: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1282"> <span class="tok-kw">var</span> x298: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1283"> addcarryxU64(&x297, &x298, x296, x258, x284);</span> <span class="line" id="L1284"> <span class="tok-kw">const</span> x299 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x298) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x259));</span> <span class="line" id="L1285"> <span class="tok-kw">var</span> x300: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1286"> <span class="tok-kw">var</span> x301: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1287"> mulxU64(&x300, &x301, x4, (arg1[<span class="tok-number">5</span>]));</span> <span class="line" id="L1288"> <span class="tok-kw">var</span> x302: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1289"> <span class="tok-kw">var</span> x303: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1290"> mulxU64(&x302, &x303, x4, (arg1[<span class="tok-number">4</span>]));</span> <span class="line" id="L1291"> <span class="tok-kw">var</span> x304: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1292"> <span class="tok-kw">var</span> x305: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1293"> mulxU64(&x304, &x305, x4, (arg1[<span class="tok-number">3</span>]));</span> <span class="line" id="L1294"> <span class="tok-kw">var</span> x306: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1295"> <span class="tok-kw">var</span> x307: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1296"> mulxU64(&x306, &x307, x4, (arg1[<span class="tok-number">2</span>]));</span> <span class="line" id="L1297"> <span class="tok-kw">var</span> x308: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1298"> <span class="tok-kw">var</span> x309: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1299"> mulxU64(&x308, &x309, x4, (arg1[<span class="tok-number">1</span>]));</span> <span class="line" id="L1300"> <span class="tok-kw">var</span> x310: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1301"> <span class="tok-kw">var</span> x311: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1302"> mulxU64(&x310, &x311, x4, (arg1[<span class="tok-number">0</span>]));</span> <span class="line" id="L1303"> <span class="tok-kw">var</span> x312: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1304"> <span class="tok-kw">var</span> x313: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1305"> addcarryxU64(&x312, &x313, <span class="tok-number">0x0</span>, x311, x308);</span> <span class="line" id="L1306"> <span class="tok-kw">var</span> x314: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1307"> <span class="tok-kw">var</span> x315: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1308"> addcarryxU64(&x314, &x315, x313, x309, x306);</span> <span class="line" id="L1309"> <span class="tok-kw">var</span> x316: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1310"> <span class="tok-kw">var</span> x317: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1311"> addcarryxU64(&x316, &x317, x315, x307, x304);</span> <span class="line" id="L1312"> <span class="tok-kw">var</span> x318: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1313"> <span class="tok-kw">var</span> x319: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1314"> addcarryxU64(&x318, &x319, x317, x305, x302);</span> <span class="line" id="L1315"> <span class="tok-kw">var</span> x320: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1316"> <span class="tok-kw">var</span> x321: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1317"> addcarryxU64(&x320, &x321, x319, x303, x300);</span> <span class="line" id="L1318"> <span class="tok-kw">const</span> x322 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x321) + x301);</span> <span class="line" id="L1319"> <span class="tok-kw">var</span> x323: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1320"> <span class="tok-kw">var</span> x324: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1321"> addcarryxU64(&x323, &x324, <span class="tok-number">0x0</span>, x287, x310);</span> <span class="line" id="L1322"> <span class="tok-kw">var</span> x325: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1323"> <span class="tok-kw">var</span> x326: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1324"> addcarryxU64(&x325, &x326, x324, x289, x312);</span> <span class="line" id="L1325"> <span class="tok-kw">var</span> x327: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1326"> <span class="tok-kw">var</span> x328: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1327"> addcarryxU64(&x327, &x328, x326, x291, x314);</span> <span class="line" id="L1328"> <span class="tok-kw">var</span> x329: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1329"> <span class="tok-kw">var</span> x330: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1330"> addcarryxU64(&x329, &x330, x328, x293, x316);</span> <span class="line" id="L1331"> <span class="tok-kw">var</span> x331: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1332"> <span class="tok-kw">var</span> x332: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1333"> addcarryxU64(&x331, &x332, x330, x295, x318);</span> <span class="line" id="L1334"> <span class="tok-kw">var</span> x333: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1335"> <span class="tok-kw">var</span> x334: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1336"> addcarryxU64(&x333, &x334, x332, x297, x320);</span> <span class="line" id="L1337"> <span class="tok-kw">var</span> x335: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1338"> <span class="tok-kw">var</span> x336: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1339"> addcarryxU64(&x335, &x336, x334, x299, x322);</span> <span class="line" id="L1340"> <span class="tok-kw">var</span> x337: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1341"> <span class="tok-kw">var</span> x338: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1342"> mulxU64(&x337, &x338, x323, <span class="tok-number">0x6ed46089e88fdc45</span>);</span> <span class="line" id="L1343"> <span class="tok-kw">var</span> x339: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1344"> <span class="tok-kw">var</span> x340: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1345"> mulxU64(&x339, &x340, x337, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1346"> <span class="tok-kw">var</span> x341: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1347"> <span class="tok-kw">var</span> x342: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1348"> mulxU64(&x341, &x342, x337, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1349"> <span class="tok-kw">var</span> x343: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1350"> <span class="tok-kw">var</span> x344: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1351"> mulxU64(&x343, &x344, x337, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1352"> <span class="tok-kw">var</span> x345: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1353"> <span class="tok-kw">var</span> x346: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1354"> mulxU64(&x345, &x346, x337, <span class="tok-number">0xc7634d81f4372ddf</span>);</span> <span class="line" id="L1355"> <span class="tok-kw">var</span> x347: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1356"> <span class="tok-kw">var</span> x348: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1357"> mulxU64(&x347, &x348, x337, <span class="tok-number">0x581a0db248b0a77a</span>);</span> <span class="line" id="L1358"> <span class="tok-kw">var</span> x349: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1359"> <span class="tok-kw">var</span> x350: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1360"> mulxU64(&x349, &x350, x337, <span class="tok-number">0xecec196accc52973</span>);</span> <span class="line" id="L1361"> <span class="tok-kw">var</span> x351: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1362"> <span class="tok-kw">var</span> x352: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1363"> addcarryxU64(&x351, &x352, <span class="tok-number">0x0</span>, x350, x347);</span> <span class="line" id="L1364"> <span class="tok-kw">var</span> x353: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1365"> <span class="tok-kw">var</span> x354: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1366"> addcarryxU64(&x353, &x354, x352, x348, x345);</span> <span class="line" id="L1367"> <span class="tok-kw">var</span> x355: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1368"> <span class="tok-kw">var</span> x356: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1369"> addcarryxU64(&x355, &x356, x354, x346, x343);</span> <span class="line" id="L1370"> <span class="tok-kw">var</span> x357: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1371"> <span class="tok-kw">var</span> x358: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1372"> addcarryxU64(&x357, &x358, x356, x344, x341);</span> <span class="line" id="L1373"> <span class="tok-kw">var</span> x359: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1374"> <span class="tok-kw">var</span> x360: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1375"> addcarryxU64(&x359, &x360, x358, x342, x339);</span> <span class="line" id="L1376"> <span class="tok-kw">const</span> x361 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x360) + x340);</span> <span class="line" id="L1377"> <span class="tok-kw">var</span> x362: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1378"> <span class="tok-kw">var</span> x363: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1379"> addcarryxU64(&x362, &x363, <span class="tok-number">0x0</span>, x323, x349);</span> <span class="line" id="L1380"> <span class="tok-kw">var</span> x364: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1381"> <span class="tok-kw">var</span> x365: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1382"> addcarryxU64(&x364, &x365, x363, x325, x351);</span> <span class="line" id="L1383"> <span class="tok-kw">var</span> x366: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1384"> <span class="tok-kw">var</span> x367: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1385"> addcarryxU64(&x366, &x367, x365, x327, x353);</span> <span class="line" id="L1386"> <span class="tok-kw">var</span> x368: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1387"> <span class="tok-kw">var</span> x369: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1388"> addcarryxU64(&x368, &x369, x367, x329, x355);</span> <span class="line" id="L1389"> <span class="tok-kw">var</span> x370: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1390"> <span class="tok-kw">var</span> x371: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1391"> addcarryxU64(&x370, &x371, x369, x331, x357);</span> <span class="line" id="L1392"> <span class="tok-kw">var</span> x372: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1393"> <span class="tok-kw">var</span> x373: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1394"> addcarryxU64(&x372, &x373, x371, x333, x359);</span> <span class="line" id="L1395"> <span class="tok-kw">var</span> x374: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1396"> <span class="tok-kw">var</span> x375: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1397"> addcarryxU64(&x374, &x375, x373, x335, x361);</span> <span class="line" id="L1398"> <span class="tok-kw">const</span> x376 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x375) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x336));</span> <span class="line" id="L1399"> <span class="tok-kw">var</span> x377: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1400"> <span class="tok-kw">var</span> x378: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1401"> mulxU64(&x377, &x378, x5, (arg1[<span class="tok-number">5</span>]));</span> <span class="line" id="L1402"> <span class="tok-kw">var</span> x379: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1403"> <span class="tok-kw">var</span> x380: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1404"> mulxU64(&x379, &x380, x5, (arg1[<span class="tok-number">4</span>]));</span> <span class="line" id="L1405"> <span class="tok-kw">var</span> x381: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1406"> <span class="tok-kw">var</span> x382: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1407"> mulxU64(&x381, &x382, x5, (arg1[<span class="tok-number">3</span>]));</span> <span class="line" id="L1408"> <span class="tok-kw">var</span> x383: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1409"> <span class="tok-kw">var</span> x384: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1410"> mulxU64(&x383, &x384, x5, (arg1[<span class="tok-number">2</span>]));</span> <span class="line" id="L1411"> <span class="tok-kw">var</span> x385: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1412"> <span class="tok-kw">var</span> x386: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1413"> mulxU64(&x385, &x386, x5, (arg1[<span class="tok-number">1</span>]));</span> <span class="line" id="L1414"> <span class="tok-kw">var</span> x387: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1415"> <span class="tok-kw">var</span> x388: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1416"> mulxU64(&x387, &x388, x5, (arg1[<span class="tok-number">0</span>]));</span> <span class="line" id="L1417"> <span class="tok-kw">var</span> x389: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1418"> <span class="tok-kw">var</span> x390: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1419"> addcarryxU64(&x389, &x390, <span class="tok-number">0x0</span>, x388, x385);</span> <span class="line" id="L1420"> <span class="tok-kw">var</span> x391: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1421"> <span class="tok-kw">var</span> x392: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1422"> addcarryxU64(&x391, &x392, x390, x386, x383);</span> <span class="line" id="L1423"> <span class="tok-kw">var</span> x393: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1424"> <span class="tok-kw">var</span> x394: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1425"> addcarryxU64(&x393, &x394, x392, x384, x381);</span> <span class="line" id="L1426"> <span class="tok-kw">var</span> x395: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1427"> <span class="tok-kw">var</span> x396: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1428"> addcarryxU64(&x395, &x396, x394, x382, x379);</span> <span class="line" id="L1429"> <span class="tok-kw">var</span> x397: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1430"> <span class="tok-kw">var</span> x398: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1431"> addcarryxU64(&x397, &x398, x396, x380, x377);</span> <span class="line" id="L1432"> <span class="tok-kw">const</span> x399 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x398) + x378);</span> <span class="line" id="L1433"> <span class="tok-kw">var</span> x400: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1434"> <span class="tok-kw">var</span> x401: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1435"> addcarryxU64(&x400, &x401, <span class="tok-number">0x0</span>, x364, x387);</span> <span class="line" id="L1436"> <span class="tok-kw">var</span> x402: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1437"> <span class="tok-kw">var</span> x403: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1438"> addcarryxU64(&x402, &x403, x401, x366, x389);</span> <span class="line" id="L1439"> <span class="tok-kw">var</span> x404: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1440"> <span class="tok-kw">var</span> x405: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1441"> addcarryxU64(&x404, &x405, x403, x368, x391);</span> <span class="line" id="L1442"> <span class="tok-kw">var</span> x406: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1443"> <span class="tok-kw">var</span> x407: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1444"> addcarryxU64(&x406, &x407, x405, x370, x393);</span> <span class="line" id="L1445"> <span class="tok-kw">var</span> x408: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1446"> <span class="tok-kw">var</span> x409: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1447"> addcarryxU64(&x408, &x409, x407, x372, x395);</span> <span class="line" id="L1448"> <span class="tok-kw">var</span> x410: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1449"> <span class="tok-kw">var</span> x411: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1450"> addcarryxU64(&x410, &x411, x409, x374, x397);</span> <span class="line" id="L1451"> <span class="tok-kw">var</span> x412: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1452"> <span class="tok-kw">var</span> x413: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1453"> addcarryxU64(&x412, &x413, x411, x376, x399);</span> <span class="line" id="L1454"> <span class="tok-kw">var</span> x414: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1455"> <span class="tok-kw">var</span> x415: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1456"> mulxU64(&x414, &x415, x400, <span class="tok-number">0x6ed46089e88fdc45</span>);</span> <span class="line" id="L1457"> <span class="tok-kw">var</span> x416: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1458"> <span class="tok-kw">var</span> x417: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1459"> mulxU64(&x416, &x417, x414, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1460"> <span class="tok-kw">var</span> x418: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1461"> <span class="tok-kw">var</span> x419: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1462"> mulxU64(&x418, &x419, x414, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1463"> <span class="tok-kw">var</span> x420: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1464"> <span class="tok-kw">var</span> x421: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1465"> mulxU64(&x420, &x421, x414, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1466"> <span class="tok-kw">var</span> x422: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1467"> <span class="tok-kw">var</span> x423: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1468"> mulxU64(&x422, &x423, x414, <span class="tok-number">0xc7634d81f4372ddf</span>);</span> <span class="line" id="L1469"> <span class="tok-kw">var</span> x424: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1470"> <span class="tok-kw">var</span> x425: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1471"> mulxU64(&x424, &x425, x414, <span class="tok-number">0x581a0db248b0a77a</span>);</span> <span class="line" id="L1472"> <span class="tok-kw">var</span> x426: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1473"> <span class="tok-kw">var</span> x427: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1474"> mulxU64(&x426, &x427, x414, <span class="tok-number">0xecec196accc52973</span>);</span> <span class="line" id="L1475"> <span class="tok-kw">var</span> x428: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1476"> <span class="tok-kw">var</span> x429: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1477"> addcarryxU64(&x428, &x429, <span class="tok-number">0x0</span>, x427, x424);</span> <span class="line" id="L1478"> <span class="tok-kw">var</span> x430: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1479"> <span class="tok-kw">var</span> x431: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1480"> addcarryxU64(&x430, &x431, x429, x425, x422);</span> <span class="line" id="L1481"> <span class="tok-kw">var</span> x432: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1482"> <span class="tok-kw">var</span> x433: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1483"> addcarryxU64(&x432, &x433, x431, x423, x420);</span> <span class="line" id="L1484"> <span class="tok-kw">var</span> x434: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1485"> <span class="tok-kw">var</span> x435: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1486"> addcarryxU64(&x434, &x435, x433, x421, x418);</span> <span class="line" id="L1487"> <span class="tok-kw">var</span> x436: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1488"> <span class="tok-kw">var</span> x437: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1489"> addcarryxU64(&x436, &x437, x435, x419, x416);</span> <span class="line" id="L1490"> <span class="tok-kw">const</span> x438 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x437) + x417);</span> <span class="line" id="L1491"> <span class="tok-kw">var</span> x439: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1492"> <span class="tok-kw">var</span> x440: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1493"> addcarryxU64(&x439, &x440, <span class="tok-number">0x0</span>, x400, x426);</span> <span class="line" id="L1494"> <span class="tok-kw">var</span> x441: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1495"> <span class="tok-kw">var</span> x442: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1496"> addcarryxU64(&x441, &x442, x440, x402, x428);</span> <span class="line" id="L1497"> <span class="tok-kw">var</span> x443: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1498"> <span class="tok-kw">var</span> x444: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1499"> addcarryxU64(&x443, &x444, x442, x404, x430);</span> <span class="line" id="L1500"> <span class="tok-kw">var</span> x445: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1501"> <span class="tok-kw">var</span> x446: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1502"> addcarryxU64(&x445, &x446, x444, x406, x432);</span> <span class="line" id="L1503"> <span class="tok-kw">var</span> x447: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1504"> <span class="tok-kw">var</span> x448: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1505"> addcarryxU64(&x447, &x448, x446, x408, x434);</span> <span class="line" id="L1506"> <span class="tok-kw">var</span> x449: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1507"> <span class="tok-kw">var</span> x450: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1508"> addcarryxU64(&x449, &x450, x448, x410, x436);</span> <span class="line" id="L1509"> <span class="tok-kw">var</span> x451: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1510"> <span class="tok-kw">var</span> x452: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1511"> addcarryxU64(&x451, &x452, x450, x412, x438);</span> <span class="line" id="L1512"> <span class="tok-kw">const</span> x453 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x452) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x413));</span> <span class="line" id="L1513"> <span class="tok-kw">var</span> x454: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1514"> <span class="tok-kw">var</span> x455: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1515"> subborrowxU64(&x454, &x455, <span class="tok-number">0x0</span>, x441, <span class="tok-number">0xecec196accc52973</span>);</span> <span class="line" id="L1516"> <span class="tok-kw">var</span> x456: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1517"> <span class="tok-kw">var</span> x457: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1518"> subborrowxU64(&x456, &x457, x455, x443, <span class="tok-number">0x581a0db248b0a77a</span>);</span> <span class="line" id="L1519"> <span class="tok-kw">var</span> x458: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1520"> <span class="tok-kw">var</span> x459: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1521"> subborrowxU64(&x458, &x459, x457, x445, <span class="tok-number">0xc7634d81f4372ddf</span>);</span> <span class="line" id="L1522"> <span class="tok-kw">var</span> x460: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1523"> <span class="tok-kw">var</span> x461: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1524"> subborrowxU64(&x460, &x461, x459, x447, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1525"> <span class="tok-kw">var</span> x462: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1526"> <span class="tok-kw">var</span> x463: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1527"> subborrowxU64(&x462, &x463, x461, x449, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1528"> <span class="tok-kw">var</span> x464: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1529"> <span class="tok-kw">var</span> x465: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1530"> subborrowxU64(&x464, &x465, x463, x451, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1531"> <span class="tok-kw">var</span> x466: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1532"> <span class="tok-kw">var</span> x467: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1533"> subborrowxU64(&x466, &x467, x465, x453, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1534"> <span class="tok-kw">var</span> x468: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1535"> cmovznzU64(&x468, x467, x454, x441);</span> <span class="line" id="L1536"> <span class="tok-kw">var</span> x469: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1537"> cmovznzU64(&x469, x467, x456, x443);</span> <span class="line" id="L1538"> <span class="tok-kw">var</span> x470: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1539"> cmovznzU64(&x470, x467, x458, x445);</span> <span class="line" id="L1540"> <span class="tok-kw">var</span> x471: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1541"> cmovznzU64(&x471, x467, x460, x447);</span> <span class="line" id="L1542"> <span class="tok-kw">var</span> x472: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1543"> cmovznzU64(&x472, x467, x462, x449);</span> <span class="line" id="L1544"> <span class="tok-kw">var</span> x473: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1545"> cmovznzU64(&x473, x467, x464, x451);</span> <span class="line" id="L1546"> out1[<span class="tok-number">0</span>] = x468;</span> <span class="line" id="L1547"> out1[<span class="tok-number">1</span>] = x469;</span> <span class="line" id="L1548"> out1[<span class="tok-number">2</span>] = x470;</span> <span class="line" id="L1549"> out1[<span class="tok-number">3</span>] = x471;</span> <span class="line" id="L1550"> out1[<span class="tok-number">4</span>] = x472;</span> <span class="line" id="L1551"> out1[<span class="tok-number">5</span>] = x473;</span> <span class="line" id="L1552">}</span> <span class="line" id="L1553"></span> <span class="line" id="L1554"><span class="tok-comment">/// The function add adds two field elements in the Montgomery domain.</span></span> <span class="line" id="L1555"><span class="tok-comment">///</span></span> <span class="line" id="L1556"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L1557"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L1558"><span class="tok-comment">/// 0 ≤ eval arg2 < m</span></span> <span class="line" id="L1559"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L1560"><span class="tok-comment">/// eval (from_montgomery out1) mod m = (eval (from_montgomery arg1) + eval (from_montgomery arg2)) mod m</span></span> <span class="line" id="L1561"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L1562"><span class="tok-comment">///</span></span> <span class="line" id="L1563"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">add</span>(out1: MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldElement, arg2: MontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L1564"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L1565"></span> <span class="line" id="L1566"> <span class="tok-kw">var</span> x1: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1567"> <span class="tok-kw">var</span> x2: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1568"> addcarryxU64(&x1, &x2, <span class="tok-number">0x0</span>, (arg1[<span class="tok-number">0</span>]), (arg2[<span class="tok-number">0</span>]));</span> <span class="line" id="L1569"> <span class="tok-kw">var</span> x3: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1570"> <span class="tok-kw">var</span> x4: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1571"> addcarryxU64(&x3, &x4, x2, (arg1[<span class="tok-number">1</span>]), (arg2[<span class="tok-number">1</span>]));</span> <span class="line" id="L1572"> <span class="tok-kw">var</span> x5: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1573"> <span class="tok-kw">var</span> x6: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1574"> addcarryxU64(&x5, &x6, x4, (arg1[<span class="tok-number">2</span>]), (arg2[<span class="tok-number">2</span>]));</span> <span class="line" id="L1575"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1576"> <span class="tok-kw">var</span> x8: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1577"> addcarryxU64(&x7, &x8, x6, (arg1[<span class="tok-number">3</span>]), (arg2[<span class="tok-number">3</span>]));</span> <span class="line" id="L1578"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1579"> <span class="tok-kw">var</span> x10: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1580"> addcarryxU64(&x9, &x10, x8, (arg1[<span class="tok-number">4</span>]), (arg2[<span class="tok-number">4</span>]));</span> <span class="line" id="L1581"> <span class="tok-kw">var</span> x11: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1582"> <span class="tok-kw">var</span> x12: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1583"> addcarryxU64(&x11, &x12, x10, (arg1[<span class="tok-number">5</span>]), (arg2[<span class="tok-number">5</span>]));</span> <span class="line" id="L1584"> <span class="tok-kw">var</span> x13: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1585"> <span class="tok-kw">var</span> x14: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1586"> subborrowxU64(&x13, &x14, <span class="tok-number">0x0</span>, x1, <span class="tok-number">0xecec196accc52973</span>);</span> <span class="line" id="L1587"> <span class="tok-kw">var</span> x15: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1588"> <span class="tok-kw">var</span> x16: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1589"> subborrowxU64(&x15, &x16, x14, x3, <span class="tok-number">0x581a0db248b0a77a</span>);</span> <span class="line" id="L1590"> <span class="tok-kw">var</span> x17: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1591"> <span class="tok-kw">var</span> x18: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1592"> subborrowxU64(&x17, &x18, x16, x5, <span class="tok-number">0xc7634d81f4372ddf</span>);</span> <span class="line" id="L1593"> <span class="tok-kw">var</span> x19: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1594"> <span class="tok-kw">var</span> x20: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1595"> subborrowxU64(&x19, &x20, x18, x7, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1596"> <span class="tok-kw">var</span> x21: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1597"> <span class="tok-kw">var</span> x22: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1598"> subborrowxU64(&x21, &x22, x20, x9, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1599"> <span class="tok-kw">var</span> x23: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1600"> <span class="tok-kw">var</span> x24: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1601"> subborrowxU64(&x23, &x24, x22, x11, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1602"> <span class="tok-kw">var</span> x25: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1603"> <span class="tok-kw">var</span> x26: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1604"> subborrowxU64(&x25, &x26, x24, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x12), <span class="tok-number">0x0</span>);</span> <span class="line" id="L1605"> <span class="tok-kw">var</span> x27: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1606"> cmovznzU64(&x27, x26, x13, x1);</span> <span class="line" id="L1607"> <span class="tok-kw">var</span> x28: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1608"> cmovznzU64(&x28, x26, x15, x3);</span> <span class="line" id="L1609"> <span class="tok-kw">var</span> x29: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1610"> cmovznzU64(&x29, x26, x17, x5);</span> <span class="line" id="L1611"> <span class="tok-kw">var</span> x30: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1612"> cmovznzU64(&x30, x26, x19, x7);</span> <span class="line" id="L1613"> <span class="tok-kw">var</span> x31: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1614"> cmovznzU64(&x31, x26, x21, x9);</span> <span class="line" id="L1615"> <span class="tok-kw">var</span> x32: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1616"> cmovznzU64(&x32, x26, x23, x11);</span> <span class="line" id="L1617"> out1[<span class="tok-number">0</span>] = x27;</span> <span class="line" id="L1618"> out1[<span class="tok-number">1</span>] = x28;</span> <span class="line" id="L1619"> out1[<span class="tok-number">2</span>] = x29;</span> <span class="line" id="L1620"> out1[<span class="tok-number">3</span>] = x30;</span> <span class="line" id="L1621"> out1[<span class="tok-number">4</span>] = x31;</span> <span class="line" id="L1622"> out1[<span class="tok-number">5</span>] = x32;</span> <span class="line" id="L1623">}</span> <span class="line" id="L1624"></span> <span class="line" id="L1625"><span class="tok-comment">/// The function sub subtracts two field elements in the Montgomery domain.</span></span> <span class="line" id="L1626"><span class="tok-comment">///</span></span> <span class="line" id="L1627"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L1628"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L1629"><span class="tok-comment">/// 0 ≤ eval arg2 < m</span></span> <span class="line" id="L1630"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L1631"><span class="tok-comment">/// eval (from_montgomery out1) mod m = (eval (from_montgomery arg1) - eval (from_montgomery arg2)) mod m</span></span> <span class="line" id="L1632"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L1633"><span class="tok-comment">///</span></span> <span class="line" id="L1634"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">sub</span>(out1: MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldElement, arg2: MontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L1635"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L1636"></span> <span class="line" id="L1637"> <span class="tok-kw">var</span> x1: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1638"> <span class="tok-kw">var</span> x2: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1639"> subborrowxU64(&x1, &x2, <span class="tok-number">0x0</span>, (arg1[<span class="tok-number">0</span>]), (arg2[<span class="tok-number">0</span>]));</span> <span class="line" id="L1640"> <span class="tok-kw">var</span> x3: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1641"> <span class="tok-kw">var</span> x4: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1642"> subborrowxU64(&x3, &x4, x2, (arg1[<span class="tok-number">1</span>]), (arg2[<span class="tok-number">1</span>]));</span> <span class="line" id="L1643"> <span class="tok-kw">var</span> x5: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1644"> <span class="tok-kw">var</span> x6: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1645"> subborrowxU64(&x5, &x6, x4, (arg1[<span class="tok-number">2</span>]), (arg2[<span class="tok-number">2</span>]));</span> <span class="line" id="L1646"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1647"> <span class="tok-kw">var</span> x8: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1648"> subborrowxU64(&x7, &x8, x6, (arg1[<span class="tok-number">3</span>]), (arg2[<span class="tok-number">3</span>]));</span> <span class="line" id="L1649"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1650"> <span class="tok-kw">var</span> x10: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1651"> subborrowxU64(&x9, &x10, x8, (arg1[<span class="tok-number">4</span>]), (arg2[<span class="tok-number">4</span>]));</span> <span class="line" id="L1652"> <span class="tok-kw">var</span> x11: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1653"> <span class="tok-kw">var</span> x12: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1654"> subborrowxU64(&x11, &x12, x10, (arg1[<span class="tok-number">5</span>]), (arg2[<span class="tok-number">5</span>]));</span> <span class="line" id="L1655"> <span class="tok-kw">var</span> x13: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1656"> cmovznzU64(&x13, x12, <span class="tok-number">0x0</span>, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1657"> <span class="tok-kw">var</span> x14: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1658"> <span class="tok-kw">var</span> x15: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1659"> addcarryxU64(&x14, &x15, <span class="tok-number">0x0</span>, x1, (x13 & <span class="tok-number">0xecec196accc52973</span>));</span> <span class="line" id="L1660"> <span class="tok-kw">var</span> x16: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1661"> <span class="tok-kw">var</span> x17: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1662"> addcarryxU64(&x16, &x17, x15, x3, (x13 & <span class="tok-number">0x581a0db248b0a77a</span>));</span> <span class="line" id="L1663"> <span class="tok-kw">var</span> x18: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1664"> <span class="tok-kw">var</span> x19: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1665"> addcarryxU64(&x18, &x19, x17, x5, (x13 & <span class="tok-number">0xc7634d81f4372ddf</span>));</span> <span class="line" id="L1666"> <span class="tok-kw">var</span> x20: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1667"> <span class="tok-kw">var</span> x21: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1668"> addcarryxU64(&x20, &x21, x19, x7, x13);</span> <span class="line" id="L1669"> <span class="tok-kw">var</span> x22: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1670"> <span class="tok-kw">var</span> x23: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1671"> addcarryxU64(&x22, &x23, x21, x9, x13);</span> <span class="line" id="L1672"> <span class="tok-kw">var</span> x24: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1673"> <span class="tok-kw">var</span> x25: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1674"> addcarryxU64(&x24, &x25, x23, x11, x13);</span> <span class="line" id="L1675"> out1[<span class="tok-number">0</span>] = x14;</span> <span class="line" id="L1676"> out1[<span class="tok-number">1</span>] = x16;</span> <span class="line" id="L1677"> out1[<span class="tok-number">2</span>] = x18;</span> <span class="line" id="L1678"> out1[<span class="tok-number">3</span>] = x20;</span> <span class="line" id="L1679"> out1[<span class="tok-number">4</span>] = x22;</span> <span class="line" id="L1680"> out1[<span class="tok-number">5</span>] = x24;</span> <span class="line" id="L1681">}</span> <span class="line" id="L1682"></span> <span class="line" id="L1683"><span class="tok-comment">/// The function opp negates a field element in the Montgomery domain.</span></span> <span class="line" id="L1684"><span class="tok-comment">///</span></span> <span class="line" id="L1685"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L1686"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L1687"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L1688"><span class="tok-comment">/// eval (from_montgomery out1) mod m = -eval (from_montgomery arg1) mod m</span></span> <span class="line" id="L1689"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L1690"><span class="tok-comment">///</span></span> <span class="line" id="L1691"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">opp</span>(out1: MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L1692"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L1693"></span> <span class="line" id="L1694"> <span class="tok-kw">var</span> x1: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1695"> <span class="tok-kw">var</span> x2: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1696"> subborrowxU64(&x1, &x2, <span class="tok-number">0x0</span>, <span class="tok-number">0x0</span>, (arg1[<span class="tok-number">0</span>]));</span> <span class="line" id="L1697"> <span class="tok-kw">var</span> x3: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1698"> <span class="tok-kw">var</span> x4: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1699"> subborrowxU64(&x3, &x4, x2, <span class="tok-number">0x0</span>, (arg1[<span class="tok-number">1</span>]));</span> <span class="line" id="L1700"> <span class="tok-kw">var</span> x5: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1701"> <span class="tok-kw">var</span> x6: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1702"> subborrowxU64(&x5, &x6, x4, <span class="tok-number">0x0</span>, (arg1[<span class="tok-number">2</span>]));</span> <span class="line" id="L1703"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1704"> <span class="tok-kw">var</span> x8: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1705"> subborrowxU64(&x7, &x8, x6, <span class="tok-number">0x0</span>, (arg1[<span class="tok-number">3</span>]));</span> <span class="line" id="L1706"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1707"> <span class="tok-kw">var</span> x10: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1708"> subborrowxU64(&x9, &x10, x8, <span class="tok-number">0x0</span>, (arg1[<span class="tok-number">4</span>]));</span> <span class="line" id="L1709"> <span class="tok-kw">var</span> x11: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1710"> <span class="tok-kw">var</span> x12: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1711"> subborrowxU64(&x11, &x12, x10, <span class="tok-number">0x0</span>, (arg1[<span class="tok-number">5</span>]));</span> <span class="line" id="L1712"> <span class="tok-kw">var</span> x13: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1713"> cmovznzU64(&x13, x12, <span class="tok-number">0x0</span>, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1714"> <span class="tok-kw">var</span> x14: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1715"> <span class="tok-kw">var</span> x15: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1716"> addcarryxU64(&x14, &x15, <span class="tok-number">0x0</span>, x1, (x13 & <span class="tok-number">0xecec196accc52973</span>));</span> <span class="line" id="L1717"> <span class="tok-kw">var</span> x16: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1718"> <span class="tok-kw">var</span> x17: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1719"> addcarryxU64(&x16, &x17, x15, x3, (x13 & <span class="tok-number">0x581a0db248b0a77a</span>));</span> <span class="line" id="L1720"> <span class="tok-kw">var</span> x18: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1721"> <span class="tok-kw">var</span> x19: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1722"> addcarryxU64(&x18, &x19, x17, x5, (x13 & <span class="tok-number">0xc7634d81f4372ddf</span>));</span> <span class="line" id="L1723"> <span class="tok-kw">var</span> x20: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1724"> <span class="tok-kw">var</span> x21: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1725"> addcarryxU64(&x20, &x21, x19, x7, x13);</span> <span class="line" id="L1726"> <span class="tok-kw">var</span> x22: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1727"> <span class="tok-kw">var</span> x23: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1728"> addcarryxU64(&x22, &x23, x21, x9, x13);</span> <span class="line" id="L1729"> <span class="tok-kw">var</span> x24: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1730"> <span class="tok-kw">var</span> x25: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1731"> addcarryxU64(&x24, &x25, x23, x11, x13);</span> <span class="line" id="L1732"> out1[<span class="tok-number">0</span>] = x14;</span> <span class="line" id="L1733"> out1[<span class="tok-number">1</span>] = x16;</span> <span class="line" id="L1734"> out1[<span class="tok-number">2</span>] = x18;</span> <span class="line" id="L1735"> out1[<span class="tok-number">3</span>] = x20;</span> <span class="line" id="L1736"> out1[<span class="tok-number">4</span>] = x22;</span> <span class="line" id="L1737"> out1[<span class="tok-number">5</span>] = x24;</span> <span class="line" id="L1738">}</span> <span class="line" id="L1739"></span> <span class="line" id="L1740"><span class="tok-comment">/// The function fromMontgomery translates a field element out of the Montgomery domain.</span></span> <span class="line" id="L1741"><span class="tok-comment">///</span></span> <span class="line" id="L1742"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L1743"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L1744"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L1745"><span class="tok-comment">/// eval out1 mod m = (eval arg1 * ((2^64)⁻¹ mod m)^6) mod m</span></span> <span class="line" id="L1746"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L1747"><span class="tok-comment">///</span></span> <span class="line" id="L1748"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromMontgomery</span>(out1: NonMontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L1749"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L1750"></span> <span class="line" id="L1751"> <span class="tok-kw">const</span> x1 = (arg1[<span class="tok-number">0</span>]);</span> <span class="line" id="L1752"> <span class="tok-kw">var</span> x2: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1753"> <span class="tok-kw">var</span> x3: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1754"> mulxU64(&x2, &x3, x1, <span class="tok-number">0x6ed46089e88fdc45</span>);</span> <span class="line" id="L1755"> <span class="tok-kw">var</span> x4: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1756"> <span class="tok-kw">var</span> x5: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1757"> mulxU64(&x4, &x5, x2, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1758"> <span class="tok-kw">var</span> x6: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1759"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1760"> mulxU64(&x6, &x7, x2, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1761"> <span class="tok-kw">var</span> x8: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1762"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1763"> mulxU64(&x8, &x9, x2, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1764"> <span class="tok-kw">var</span> x10: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1765"> <span class="tok-kw">var</span> x11: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1766"> mulxU64(&x10, &x11, x2, <span class="tok-number">0xc7634d81f4372ddf</span>);</span> <span class="line" id="L1767"> <span class="tok-kw">var</span> x12: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1768"> <span class="tok-kw">var</span> x13: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1769"> mulxU64(&x12, &x13, x2, <span class="tok-number">0x581a0db248b0a77a</span>);</span> <span class="line" id="L1770"> <span class="tok-kw">var</span> x14: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1771"> <span class="tok-kw">var</span> x15: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1772"> mulxU64(&x14, &x15, x2, <span class="tok-number">0xecec196accc52973</span>);</span> <span class="line" id="L1773"> <span class="tok-kw">var</span> x16: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1774"> <span class="tok-kw">var</span> x17: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1775"> addcarryxU64(&x16, &x17, <span class="tok-number">0x0</span>, x15, x12);</span> <span class="line" id="L1776"> <span class="tok-kw">var</span> x18: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1777"> <span class="tok-kw">var</span> x19: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1778"> addcarryxU64(&x18, &x19, x17, x13, x10);</span> <span class="line" id="L1779"> <span class="tok-kw">var</span> x20: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1780"> <span class="tok-kw">var</span> x21: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1781"> addcarryxU64(&x20, &x21, x19, x11, x8);</span> <span class="line" id="L1782"> <span class="tok-kw">var</span> x22: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1783"> <span class="tok-kw">var</span> x23: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1784"> addcarryxU64(&x22, &x23, x21, x9, x6);</span> <span class="line" id="L1785"> <span class="tok-kw">var</span> x24: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1786"> <span class="tok-kw">var</span> x25: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1787"> addcarryxU64(&x24, &x25, x23, x7, x4);</span> <span class="line" id="L1788"> <span class="tok-kw">var</span> x26: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1789"> <span class="tok-kw">var</span> x27: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1790"> addcarryxU64(&x26, &x27, <span class="tok-number">0x0</span>, x1, x14);</span> <span class="line" id="L1791"> <span class="tok-kw">var</span> x28: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1792"> <span class="tok-kw">var</span> x29: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1793"> addcarryxU64(&x28, &x29, x27, <span class="tok-number">0x0</span>, x16);</span> <span class="line" id="L1794"> <span class="tok-kw">var</span> x30: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1795"> <span class="tok-kw">var</span> x31: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1796"> addcarryxU64(&x30, &x31, x29, <span class="tok-number">0x0</span>, x18);</span> <span class="line" id="L1797"> <span class="tok-kw">var</span> x32: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1798"> <span class="tok-kw">var</span> x33: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1799"> addcarryxU64(&x32, &x33, x31, <span class="tok-number">0x0</span>, x20);</span> <span class="line" id="L1800"> <span class="tok-kw">var</span> x34: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1801"> <span class="tok-kw">var</span> x35: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1802"> addcarryxU64(&x34, &x35, x33, <span class="tok-number">0x0</span>, x22);</span> <span class="line" id="L1803"> <span class="tok-kw">var</span> x36: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1804"> <span class="tok-kw">var</span> x37: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1805"> addcarryxU64(&x36, &x37, x35, <span class="tok-number">0x0</span>, x24);</span> <span class="line" id="L1806"> <span class="tok-kw">var</span> x38: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1807"> <span class="tok-kw">var</span> x39: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1808"> addcarryxU64(&x38, &x39, x37, <span class="tok-number">0x0</span>, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x25) + x5));</span> <span class="line" id="L1809"> <span class="tok-kw">var</span> x40: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1810"> <span class="tok-kw">var</span> x41: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1811"> addcarryxU64(&x40, &x41, <span class="tok-number">0x0</span>, x28, (arg1[<span class="tok-number">1</span>]));</span> <span class="line" id="L1812"> <span class="tok-kw">var</span> x42: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1813"> <span class="tok-kw">var</span> x43: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1814"> addcarryxU64(&x42, &x43, x41, x30, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1815"> <span class="tok-kw">var</span> x44: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1816"> <span class="tok-kw">var</span> x45: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1817"> addcarryxU64(&x44, &x45, x43, x32, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1818"> <span class="tok-kw">var</span> x46: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1819"> <span class="tok-kw">var</span> x47: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1820"> addcarryxU64(&x46, &x47, x45, x34, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1821"> <span class="tok-kw">var</span> x48: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1822"> <span class="tok-kw">var</span> x49: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1823"> addcarryxU64(&x48, &x49, x47, x36, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1824"> <span class="tok-kw">var</span> x50: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1825"> <span class="tok-kw">var</span> x51: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1826"> addcarryxU64(&x50, &x51, x49, x38, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1827"> <span class="tok-kw">var</span> x52: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1828"> <span class="tok-kw">var</span> x53: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1829"> mulxU64(&x52, &x53, x40, <span class="tok-number">0x6ed46089e88fdc45</span>);</span> <span class="line" id="L1830"> <span class="tok-kw">var</span> x54: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1831"> <span class="tok-kw">var</span> x55: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1832"> mulxU64(&x54, &x55, x52, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1833"> <span class="tok-kw">var</span> x56: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1834"> <span class="tok-kw">var</span> x57: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1835"> mulxU64(&x56, &x57, x52, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1836"> <span class="tok-kw">var</span> x58: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1837"> <span class="tok-kw">var</span> x59: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1838"> mulxU64(&x58, &x59, x52, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1839"> <span class="tok-kw">var</span> x60: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1840"> <span class="tok-kw">var</span> x61: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1841"> mulxU64(&x60, &x61, x52, <span class="tok-number">0xc7634d81f4372ddf</span>);</span> <span class="line" id="L1842"> <span class="tok-kw">var</span> x62: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1843"> <span class="tok-kw">var</span> x63: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1844"> mulxU64(&x62, &x63, x52, <span class="tok-number">0x581a0db248b0a77a</span>);</span> <span class="line" id="L1845"> <span class="tok-kw">var</span> x64: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1846"> <span class="tok-kw">var</span> x65: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1847"> mulxU64(&x64, &x65, x52, <span class="tok-number">0xecec196accc52973</span>);</span> <span class="line" id="L1848"> <span class="tok-kw">var</span> x66: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1849"> <span class="tok-kw">var</span> x67: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1850"> addcarryxU64(&x66, &x67, <span class="tok-number">0x0</span>, x65, x62);</span> <span class="line" id="L1851"> <span class="tok-kw">var</span> x68: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1852"> <span class="tok-kw">var</span> x69: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1853"> addcarryxU64(&x68, &x69, x67, x63, x60);</span> <span class="line" id="L1854"> <span class="tok-kw">var</span> x70: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1855"> <span class="tok-kw">var</span> x71: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1856"> addcarryxU64(&x70, &x71, x69, x61, x58);</span> <span class="line" id="L1857"> <span class="tok-kw">var</span> x72: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1858"> <span class="tok-kw">var</span> x73: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1859"> addcarryxU64(&x72, &x73, x71, x59, x56);</span> <span class="line" id="L1860"> <span class="tok-kw">var</span> x74: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1861"> <span class="tok-kw">var</span> x75: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1862"> addcarryxU64(&x74, &x75, x73, x57, x54);</span> <span class="line" id="L1863"> <span class="tok-kw">var</span> x76: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1864"> <span class="tok-kw">var</span> x77: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1865"> addcarryxU64(&x76, &x77, <span class="tok-number">0x0</span>, x40, x64);</span> <span class="line" id="L1866"> <span class="tok-kw">var</span> x78: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1867"> <span class="tok-kw">var</span> x79: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1868"> addcarryxU64(&x78, &x79, x77, x42, x66);</span> <span class="line" id="L1869"> <span class="tok-kw">var</span> x80: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1870"> <span class="tok-kw">var</span> x81: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1871"> addcarryxU64(&x80, &x81, x79, x44, x68);</span> <span class="line" id="L1872"> <span class="tok-kw">var</span> x82: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1873"> <span class="tok-kw">var</span> x83: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1874"> addcarryxU64(&x82, &x83, x81, x46, x70);</span> <span class="line" id="L1875"> <span class="tok-kw">var</span> x84: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1876"> <span class="tok-kw">var</span> x85: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1877"> addcarryxU64(&x84, &x85, x83, x48, x72);</span> <span class="line" id="L1878"> <span class="tok-kw">var</span> x86: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1879"> <span class="tok-kw">var</span> x87: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1880"> addcarryxU64(&x86, &x87, x85, x50, x74);</span> <span class="line" id="L1881"> <span class="tok-kw">var</span> x88: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1882"> <span class="tok-kw">var</span> x89: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1883"> addcarryxU64(&x88, &x89, x87, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x51) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x39)), (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x75) + x55));</span> <span class="line" id="L1884"> <span class="tok-kw">var</span> x90: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1885"> <span class="tok-kw">var</span> x91: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1886"> addcarryxU64(&x90, &x91, <span class="tok-number">0x0</span>, x78, (arg1[<span class="tok-number">2</span>]));</span> <span class="line" id="L1887"> <span class="tok-kw">var</span> x92: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1888"> <span class="tok-kw">var</span> x93: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1889"> addcarryxU64(&x92, &x93, x91, x80, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1890"> <span class="tok-kw">var</span> x94: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1891"> <span class="tok-kw">var</span> x95: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1892"> addcarryxU64(&x94, &x95, x93, x82, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1893"> <span class="tok-kw">var</span> x96: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1894"> <span class="tok-kw">var</span> x97: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1895"> addcarryxU64(&x96, &x97, x95, x84, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1896"> <span class="tok-kw">var</span> x98: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1897"> <span class="tok-kw">var</span> x99: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1898"> addcarryxU64(&x98, &x99, x97, x86, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1899"> <span class="tok-kw">var</span> x100: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1900"> <span class="tok-kw">var</span> x101: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1901"> addcarryxU64(&x100, &x101, x99, x88, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1902"> <span class="tok-kw">var</span> x102: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1903"> <span class="tok-kw">var</span> x103: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1904"> mulxU64(&x102, &x103, x90, <span class="tok-number">0x6ed46089e88fdc45</span>);</span> <span class="line" id="L1905"> <span class="tok-kw">var</span> x104: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1906"> <span class="tok-kw">var</span> x105: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1907"> mulxU64(&x104, &x105, x102, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1908"> <span class="tok-kw">var</span> x106: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1909"> <span class="tok-kw">var</span> x107: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1910"> mulxU64(&x106, &x107, x102, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1911"> <span class="tok-kw">var</span> x108: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1912"> <span class="tok-kw">var</span> x109: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1913"> mulxU64(&x108, &x109, x102, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1914"> <span class="tok-kw">var</span> x110: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1915"> <span class="tok-kw">var</span> x111: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1916"> mulxU64(&x110, &x111, x102, <span class="tok-number">0xc7634d81f4372ddf</span>);</span> <span class="line" id="L1917"> <span class="tok-kw">var</span> x112: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1918"> <span class="tok-kw">var</span> x113: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1919"> mulxU64(&x112, &x113, x102, <span class="tok-number">0x581a0db248b0a77a</span>);</span> <span class="line" id="L1920"> <span class="tok-kw">var</span> x114: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1921"> <span class="tok-kw">var</span> x115: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1922"> mulxU64(&x114, &x115, x102, <span class="tok-number">0xecec196accc52973</span>);</span> <span class="line" id="L1923"> <span class="tok-kw">var</span> x116: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1924"> <span class="tok-kw">var</span> x117: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1925"> addcarryxU64(&x116, &x117, <span class="tok-number">0x0</span>, x115, x112);</span> <span class="line" id="L1926"> <span class="tok-kw">var</span> x118: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1927"> <span class="tok-kw">var</span> x119: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1928"> addcarryxU64(&x118, &x119, x117, x113, x110);</span> <span class="line" id="L1929"> <span class="tok-kw">var</span> x120: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1930"> <span class="tok-kw">var</span> x121: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1931"> addcarryxU64(&x120, &x121, x119, x111, x108);</span> <span class="line" id="L1932"> <span class="tok-kw">var</span> x122: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1933"> <span class="tok-kw">var</span> x123: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1934"> addcarryxU64(&x122, &x123, x121, x109, x106);</span> <span class="line" id="L1935"> <span class="tok-kw">var</span> x124: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1936"> <span class="tok-kw">var</span> x125: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1937"> addcarryxU64(&x124, &x125, x123, x107, x104);</span> <span class="line" id="L1938"> <span class="tok-kw">var</span> x126: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1939"> <span class="tok-kw">var</span> x127: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1940"> addcarryxU64(&x126, &x127, <span class="tok-number">0x0</span>, x90, x114);</span> <span class="line" id="L1941"> <span class="tok-kw">var</span> x128: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1942"> <span class="tok-kw">var</span> x129: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1943"> addcarryxU64(&x128, &x129, x127, x92, x116);</span> <span class="line" id="L1944"> <span class="tok-kw">var</span> x130: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1945"> <span class="tok-kw">var</span> x131: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1946"> addcarryxU64(&x130, &x131, x129, x94, x118);</span> <span class="line" id="L1947"> <span class="tok-kw">var</span> x132: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1948"> <span class="tok-kw">var</span> x133: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1949"> addcarryxU64(&x132, &x133, x131, x96, x120);</span> <span class="line" id="L1950"> <span class="tok-kw">var</span> x134: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1951"> <span class="tok-kw">var</span> x135: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1952"> addcarryxU64(&x134, &x135, x133, x98, x122);</span> <span class="line" id="L1953"> <span class="tok-kw">var</span> x136: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1954"> <span class="tok-kw">var</span> x137: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1955"> addcarryxU64(&x136, &x137, x135, x100, x124);</span> <span class="line" id="L1956"> <span class="tok-kw">var</span> x138: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1957"> <span class="tok-kw">var</span> x139: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1958"> addcarryxU64(&x138, &x139, x137, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x101) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x89)), (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x125) + x105));</span> <span class="line" id="L1959"> <span class="tok-kw">var</span> x140: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1960"> <span class="tok-kw">var</span> x141: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1961"> addcarryxU64(&x140, &x141, <span class="tok-number">0x0</span>, x128, (arg1[<span class="tok-number">3</span>]));</span> <span class="line" id="L1962"> <span class="tok-kw">var</span> x142: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1963"> <span class="tok-kw">var</span> x143: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1964"> addcarryxU64(&x142, &x143, x141, x130, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1965"> <span class="tok-kw">var</span> x144: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1966"> <span class="tok-kw">var</span> x145: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1967"> addcarryxU64(&x144, &x145, x143, x132, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1968"> <span class="tok-kw">var</span> x146: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1969"> <span class="tok-kw">var</span> x147: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1970"> addcarryxU64(&x146, &x147, x145, x134, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1971"> <span class="tok-kw">var</span> x148: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1972"> <span class="tok-kw">var</span> x149: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1973"> addcarryxU64(&x148, &x149, x147, x136, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1974"> <span class="tok-kw">var</span> x150: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1975"> <span class="tok-kw">var</span> x151: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1976"> addcarryxU64(&x150, &x151, x149, x138, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1977"> <span class="tok-kw">var</span> x152: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1978"> <span class="tok-kw">var</span> x153: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1979"> mulxU64(&x152, &x153, x140, <span class="tok-number">0x6ed46089e88fdc45</span>);</span> <span class="line" id="L1980"> <span class="tok-kw">var</span> x154: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1981"> <span class="tok-kw">var</span> x155: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1982"> mulxU64(&x154, &x155, x152, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1983"> <span class="tok-kw">var</span> x156: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1984"> <span class="tok-kw">var</span> x157: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1985"> mulxU64(&x156, &x157, x152, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1986"> <span class="tok-kw">var</span> x158: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1987"> <span class="tok-kw">var</span> x159: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1988"> mulxU64(&x158, &x159, x152, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1989"> <span class="tok-kw">var</span> x160: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1990"> <span class="tok-kw">var</span> x161: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1991"> mulxU64(&x160, &x161, x152, <span class="tok-number">0xc7634d81f4372ddf</span>);</span> <span class="line" id="L1992"> <span class="tok-kw">var</span> x162: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1993"> <span class="tok-kw">var</span> x163: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1994"> mulxU64(&x162, &x163, x152, <span class="tok-number">0x581a0db248b0a77a</span>);</span> <span class="line" id="L1995"> <span class="tok-kw">var</span> x164: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1996"> <span class="tok-kw">var</span> x165: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1997"> mulxU64(&x164, &x165, x152, <span class="tok-number">0xecec196accc52973</span>);</span> <span class="line" id="L1998"> <span class="tok-kw">var</span> x166: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1999"> <span class="tok-kw">var</span> x167: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2000"> addcarryxU64(&x166, &x167, <span class="tok-number">0x0</span>, x165, x162);</span> <span class="line" id="L2001"> <span class="tok-kw">var</span> x168: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2002"> <span class="tok-kw">var</span> x169: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2003"> addcarryxU64(&x168, &x169, x167, x163, x160);</span> <span class="line" id="L2004"> <span class="tok-kw">var</span> x170: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2005"> <span class="tok-kw">var</span> x171: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2006"> addcarryxU64(&x170, &x171, x169, x161, x158);</span> <span class="line" id="L2007"> <span class="tok-kw">var</span> x172: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2008"> <span class="tok-kw">var</span> x173: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2009"> addcarryxU64(&x172, &x173, x171, x159, x156);</span> <span class="line" id="L2010"> <span class="tok-kw">var</span> x174: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2011"> <span class="tok-kw">var</span> x175: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2012"> addcarryxU64(&x174, &x175, x173, x157, x154);</span> <span class="line" id="L2013"> <span class="tok-kw">var</span> x176: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2014"> <span class="tok-kw">var</span> x177: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2015"> addcarryxU64(&x176, &x177, <span class="tok-number">0x0</span>, x140, x164);</span> <span class="line" id="L2016"> <span class="tok-kw">var</span> x178: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2017"> <span class="tok-kw">var</span> x179: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2018"> addcarryxU64(&x178, &x179, x177, x142, x166);</span> <span class="line" id="L2019"> <span class="tok-kw">var</span> x180: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2020"> <span class="tok-kw">var</span> x181: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2021"> addcarryxU64(&x180, &x181, x179, x144, x168);</span> <span class="line" id="L2022"> <span class="tok-kw">var</span> x182: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2023"> <span class="tok-kw">var</span> x183: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2024"> addcarryxU64(&x182, &x183, x181, x146, x170);</span> <span class="line" id="L2025"> <span class="tok-kw">var</span> x184: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2026"> <span class="tok-kw">var</span> x185: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2027"> addcarryxU64(&x184, &x185, x183, x148, x172);</span> <span class="line" id="L2028"> <span class="tok-kw">var</span> x186: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2029"> <span class="tok-kw">var</span> x187: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2030"> addcarryxU64(&x186, &x187, x185, x150, x174);</span> <span class="line" id="L2031"> <span class="tok-kw">var</span> x188: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2032"> <span class="tok-kw">var</span> x189: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2033"> addcarryxU64(&x188, &x189, x187, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x151) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x139)), (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x175) + x155));</span> <span class="line" id="L2034"> <span class="tok-kw">var</span> x190: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2035"> <span class="tok-kw">var</span> x191: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2036"> addcarryxU64(&x190, &x191, <span class="tok-number">0x0</span>, x178, (arg1[<span class="tok-number">4</span>]));</span> <span class="line" id="L2037"> <span class="tok-kw">var</span> x192: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2038"> <span class="tok-kw">var</span> x193: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2039"> addcarryxU64(&x192, &x193, x191, x180, <span class="tok-number">0x0</span>);</span> <span class="line" id="L2040"> <span class="tok-kw">var</span> x194: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2041"> <span class="tok-kw">var</span> x195: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2042"> addcarryxU64(&x194, &x195, x193, x182, <span class="tok-number">0x0</span>);</span> <span class="line" id="L2043"> <span class="tok-kw">var</span> x196: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2044"> <span class="tok-kw">var</span> x197: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2045"> addcarryxU64(&x196, &x197, x195, x184, <span class="tok-number">0x0</span>);</span> <span class="line" id="L2046"> <span class="tok-kw">var</span> x198: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2047"> <span class="tok-kw">var</span> x199: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2048"> addcarryxU64(&x198, &x199, x197, x186, <span class="tok-number">0x0</span>);</span> <span class="line" id="L2049"> <span class="tok-kw">var</span> x200: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2050"> <span class="tok-kw">var</span> x201: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2051"> addcarryxU64(&x200, &x201, x199, x188, <span class="tok-number">0x0</span>);</span> <span class="line" id="L2052"> <span class="tok-kw">var</span> x202: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2053"> <span class="tok-kw">var</span> x203: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2054"> mulxU64(&x202, &x203, x190, <span class="tok-number">0x6ed46089e88fdc45</span>);</span> <span class="line" id="L2055"> <span class="tok-kw">var</span> x204: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2056"> <span class="tok-kw">var</span> x205: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2057"> mulxU64(&x204, &x205, x202, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2058"> <span class="tok-kw">var</span> x206: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2059"> <span class="tok-kw">var</span> x207: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2060"> mulxU64(&x206, &x207, x202, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2061"> <span class="tok-kw">var</span> x208: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2062"> <span class="tok-kw">var</span> x209: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2063"> mulxU64(&x208, &x209, x202, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2064"> <span class="tok-kw">var</span> x210: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2065"> <span class="tok-kw">var</span> x211: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2066"> mulxU64(&x210, &x211, x202, <span class="tok-number">0xc7634d81f4372ddf</span>);</span> <span class="line" id="L2067"> <span class="tok-kw">var</span> x212: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2068"> <span class="tok-kw">var</span> x213: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2069"> mulxU64(&x212, &x213, x202, <span class="tok-number">0x581a0db248b0a77a</span>);</span> <span class="line" id="L2070"> <span class="tok-kw">var</span> x214: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2071"> <span class="tok-kw">var</span> x215: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2072"> mulxU64(&x214, &x215, x202, <span class="tok-number">0xecec196accc52973</span>);</span> <span class="line" id="L2073"> <span class="tok-kw">var</span> x216: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2074"> <span class="tok-kw">var</span> x217: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2075"> addcarryxU64(&x216, &x217, <span class="tok-number">0x0</span>, x215, x212);</span> <span class="line" id="L2076"> <span class="tok-kw">var</span> x218: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2077"> <span class="tok-kw">var</span> x219: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2078"> addcarryxU64(&x218, &x219, x217, x213, x210);</span> <span class="line" id="L2079"> <span class="tok-kw">var</span> x220: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2080"> <span class="tok-kw">var</span> x221: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2081"> addcarryxU64(&x220, &x221, x219, x211, x208);</span> <span class="line" id="L2082"> <span class="tok-kw">var</span> x222: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2083"> <span class="tok-kw">var</span> x223: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2084"> addcarryxU64(&x222, &x223, x221, x209, x206);</span> <span class="line" id="L2085"> <span class="tok-kw">var</span> x224: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2086"> <span class="tok-kw">var</span> x225: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2087"> addcarryxU64(&x224, &x225, x223, x207, x204);</span> <span class="line" id="L2088"> <span class="tok-kw">var</span> x226: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2089"> <span class="tok-kw">var</span> x227: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2090"> addcarryxU64(&x226, &x227, <span class="tok-number">0x0</span>, x190, x214);</span> <span class="line" id="L2091"> <span class="tok-kw">var</span> x228: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2092"> <span class="tok-kw">var</span> x229: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2093"> addcarryxU64(&x228, &x229, x227, x192, x216);</span> <span class="line" id="L2094"> <span class="tok-kw">var</span> x230: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2095"> <span class="tok-kw">var</span> x231: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2096"> addcarryxU64(&x230, &x231, x229, x194, x218);</span> <span class="line" id="L2097"> <span class="tok-kw">var</span> x232: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2098"> <span class="tok-kw">var</span> x233: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2099"> addcarryxU64(&x232, &x233, x231, x196, x220);</span> <span class="line" id="L2100"> <span class="tok-kw">var</span> x234: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2101"> <span class="tok-kw">var</span> x235: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2102"> addcarryxU64(&x234, &x235, x233, x198, x222);</span> <span class="line" id="L2103"> <span class="tok-kw">var</span> x236: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2104"> <span class="tok-kw">var</span> x237: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2105"> addcarryxU64(&x236, &x237, x235, x200, x224);</span> <span class="line" id="L2106"> <span class="tok-kw">var</span> x238: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2107"> <span class="tok-kw">var</span> x239: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2108"> addcarryxU64(&x238, &x239, x237, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x201) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x189)), (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x225) + x205));</span> <span class="line" id="L2109"> <span class="tok-kw">var</span> x240: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2110"> <span class="tok-kw">var</span> x241: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2111"> addcarryxU64(&x240, &x241, <span class="tok-number">0x0</span>, x228, (arg1[<span class="tok-number">5</span>]));</span> <span class="line" id="L2112"> <span class="tok-kw">var</span> x242: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2113"> <span class="tok-kw">var</span> x243: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2114"> addcarryxU64(&x242, &x243, x241, x230, <span class="tok-number">0x0</span>);</span> <span class="line" id="L2115"> <span class="tok-kw">var</span> x244: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2116"> <span class="tok-kw">var</span> x245: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2117"> addcarryxU64(&x244, &x245, x243, x232, <span class="tok-number">0x0</span>);</span> <span class="line" id="L2118"> <span class="tok-kw">var</span> x246: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2119"> <span class="tok-kw">var</span> x247: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2120"> addcarryxU64(&x246, &x247, x245, x234, <span class="tok-number">0x0</span>);</span> <span class="line" id="L2121"> <span class="tok-kw">var</span> x248: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2122"> <span class="tok-kw">var</span> x249: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2123"> addcarryxU64(&x248, &x249, x247, x236, <span class="tok-number">0x0</span>);</span> <span class="line" id="L2124"> <span class="tok-kw">var</span> x250: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2125"> <span class="tok-kw">var</span> x251: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2126"> addcarryxU64(&x250, &x251, x249, x238, <span class="tok-number">0x0</span>);</span> <span class="line" id="L2127"> <span class="tok-kw">var</span> x252: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2128"> <span class="tok-kw">var</span> x253: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2129"> mulxU64(&x252, &x253, x240, <span class="tok-number">0x6ed46089e88fdc45</span>);</span> <span class="line" id="L2130"> <span class="tok-kw">var</span> x254: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2131"> <span class="tok-kw">var</span> x255: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2132"> mulxU64(&x254, &x255, x252, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2133"> <span class="tok-kw">var</span> x256: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2134"> <span class="tok-kw">var</span> x257: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2135"> mulxU64(&x256, &x257, x252, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2136"> <span class="tok-kw">var</span> x258: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2137"> <span class="tok-kw">var</span> x259: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2138"> mulxU64(&x258, &x259, x252, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2139"> <span class="tok-kw">var</span> x260: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2140"> <span class="tok-kw">var</span> x261: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2141"> mulxU64(&x260, &x261, x252, <span class="tok-number">0xc7634d81f4372ddf</span>);</span> <span class="line" id="L2142"> <span class="tok-kw">var</span> x262: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2143"> <span class="tok-kw">var</span> x263: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2144"> mulxU64(&x262, &x263, x252, <span class="tok-number">0x581a0db248b0a77a</span>);</span> <span class="line" id="L2145"> <span class="tok-kw">var</span> x264: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2146"> <span class="tok-kw">var</span> x265: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2147"> mulxU64(&x264, &x265, x252, <span class="tok-number">0xecec196accc52973</span>);</span> <span class="line" id="L2148"> <span class="tok-kw">var</span> x266: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2149"> <span class="tok-kw">var</span> x267: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2150"> addcarryxU64(&x266, &x267, <span class="tok-number">0x0</span>, x265, x262);</span> <span class="line" id="L2151"> <span class="tok-kw">var</span> x268: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2152"> <span class="tok-kw">var</span> x269: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2153"> addcarryxU64(&x268, &x269, x267, x263, x260);</span> <span class="line" id="L2154"> <span class="tok-kw">var</span> x270: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2155"> <span class="tok-kw">var</span> x271: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2156"> addcarryxU64(&x270, &x271, x269, x261, x258);</span> <span class="line" id="L2157"> <span class="tok-kw">var</span> x272: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2158"> <span class="tok-kw">var</span> x273: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2159"> addcarryxU64(&x272, &x273, x271, x259, x256);</span> <span class="line" id="L2160"> <span class="tok-kw">var</span> x274: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2161"> <span class="tok-kw">var</span> x275: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2162"> addcarryxU64(&x274, &x275, x273, x257, x254);</span> <span class="line" id="L2163"> <span class="tok-kw">var</span> x276: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2164"> <span class="tok-kw">var</span> x277: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2165"> addcarryxU64(&x276, &x277, <span class="tok-number">0x0</span>, x240, x264);</span> <span class="line" id="L2166"> <span class="tok-kw">var</span> x278: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2167"> <span class="tok-kw">var</span> x279: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2168"> addcarryxU64(&x278, &x279, x277, x242, x266);</span> <span class="line" id="L2169"> <span class="tok-kw">var</span> x280: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2170"> <span class="tok-kw">var</span> x281: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2171"> addcarryxU64(&x280, &x281, x279, x244, x268);</span> <span class="line" id="L2172"> <span class="tok-kw">var</span> x282: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2173"> <span class="tok-kw">var</span> x283: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2174"> addcarryxU64(&x282, &x283, x281, x246, x270);</span> <span class="line" id="L2175"> <span class="tok-kw">var</span> x284: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2176"> <span class="tok-kw">var</span> x285: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2177"> addcarryxU64(&x284, &x285, x283, x248, x272);</span> <span class="line" id="L2178"> <span class="tok-kw">var</span> x286: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2179"> <span class="tok-kw">var</span> x287: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2180"> addcarryxU64(&x286, &x287, x285, x250, x274);</span> <span class="line" id="L2181"> <span class="tok-kw">var</span> x288: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2182"> <span class="tok-kw">var</span> x289: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2183"> addcarryxU64(&x288, &x289, x287, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x251) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x239)), (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x275) + x255));</span> <span class="line" id="L2184"> <span class="tok-kw">var</span> x290: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2185"> <span class="tok-kw">var</span> x291: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2186"> subborrowxU64(&x290, &x291, <span class="tok-number">0x0</span>, x278, <span class="tok-number">0xecec196accc52973</span>);</span> <span class="line" id="L2187"> <span class="tok-kw">var</span> x292: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2188"> <span class="tok-kw">var</span> x293: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2189"> subborrowxU64(&x292, &x293, x291, x280, <span class="tok-number">0x581a0db248b0a77a</span>);</span> <span class="line" id="L2190"> <span class="tok-kw">var</span> x294: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2191"> <span class="tok-kw">var</span> x295: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2192"> subborrowxU64(&x294, &x295, x293, x282, <span class="tok-number">0xc7634d81f4372ddf</span>);</span> <span class="line" id="L2193"> <span class="tok-kw">var</span> x296: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2194"> <span class="tok-kw">var</span> x297: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2195"> subborrowxU64(&x296, &x297, x295, x284, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2196"> <span class="tok-kw">var</span> x298: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2197"> <span class="tok-kw">var</span> x299: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2198"> subborrowxU64(&x298, &x299, x297, x286, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2199"> <span class="tok-kw">var</span> x300: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2200"> <span class="tok-kw">var</span> x301: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2201"> subborrowxU64(&x300, &x301, x299, x288, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2202"> <span class="tok-kw">var</span> x302: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2203"> <span class="tok-kw">var</span> x303: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2204"> subborrowxU64(&x302, &x303, x301, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x289), <span class="tok-number">0x0</span>);</span> <span class="line" id="L2205"> <span class="tok-kw">var</span> x304: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2206"> cmovznzU64(&x304, x303, x290, x278);</span> <span class="line" id="L2207"> <span class="tok-kw">var</span> x305: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2208"> cmovznzU64(&x305, x303, x292, x280);</span> <span class="line" id="L2209"> <span class="tok-kw">var</span> x306: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2210"> cmovznzU64(&x306, x303, x294, x282);</span> <span class="line" id="L2211"> <span class="tok-kw">var</span> x307: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2212"> cmovznzU64(&x307, x303, x296, x284);</span> <span class="line" id="L2213"> <span class="tok-kw">var</span> x308: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2214"> cmovznzU64(&x308, x303, x298, x286);</span> <span class="line" id="L2215"> <span class="tok-kw">var</span> x309: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2216"> cmovznzU64(&x309, x303, x300, x288);</span> <span class="line" id="L2217"> out1[<span class="tok-number">0</span>] = x304;</span> <span class="line" id="L2218"> out1[<span class="tok-number">1</span>] = x305;</span> <span class="line" id="L2219"> out1[<span class="tok-number">2</span>] = x306;</span> <span class="line" id="L2220"> out1[<span class="tok-number">3</span>] = x307;</span> <span class="line" id="L2221"> out1[<span class="tok-number">4</span>] = x308;</span> <span class="line" id="L2222"> out1[<span class="tok-number">5</span>] = x309;</span> <span class="line" id="L2223">}</span> <span class="line" id="L2224"></span> <span class="line" id="L2225"><span class="tok-comment">/// The function toMontgomery translates a field element into the Montgomery domain.</span></span> <span class="line" id="L2226"><span class="tok-comment">///</span></span> <span class="line" id="L2227"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L2228"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L2229"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L2230"><span class="tok-comment">/// eval (from_montgomery out1) mod m = eval arg1 mod m</span></span> <span class="line" id="L2231"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L2232"><span class="tok-comment">///</span></span> <span class="line" id="L2233"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toMontgomery</span>(out1: MontgomeryDomainFieldElement, arg1: NonMontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L2234"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L2235"></span> <span class="line" id="L2236"> <span class="tok-kw">const</span> x1 = (arg1[<span class="tok-number">1</span>]);</span> <span class="line" id="L2237"> <span class="tok-kw">const</span> x2 = (arg1[<span class="tok-number">2</span>]);</span> <span class="line" id="L2238"> <span class="tok-kw">const</span> x3 = (arg1[<span class="tok-number">3</span>]);</span> <span class="line" id="L2239"> <span class="tok-kw">const</span> x4 = (arg1[<span class="tok-number">4</span>]);</span> <span class="line" id="L2240"> <span class="tok-kw">const</span> x5 = (arg1[<span class="tok-number">5</span>]);</span> <span class="line" id="L2241"> <span class="tok-kw">const</span> x6 = (arg1[<span class="tok-number">0</span>]);</span> <span class="line" id="L2242"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2243"> <span class="tok-kw">var</span> x8: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2244"> mulxU64(&x7, &x8, x6, <span class="tok-number">0xc84ee012b39bf21</span>);</span> <span class="line" id="L2245"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2246"> <span class="tok-kw">var</span> x10: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2247"> mulxU64(&x9, &x10, x6, <span class="tok-number">0x3fb05b7a28266895</span>);</span> <span class="line" id="L2248"> <span class="tok-kw">var</span> x11: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2249"> <span class="tok-kw">var</span> x12: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2250"> mulxU64(&x11, &x12, x6, <span class="tok-number">0xd40d49174aab1cc5</span>);</span> <span class="line" id="L2251"> <span class="tok-kw">var</span> x13: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2252"> <span class="tok-kw">var</span> x14: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2253"> mulxU64(&x13, &x14, x6, <span class="tok-number">0xbc3e483afcb82947</span>);</span> <span class="line" id="L2254"> <span class="tok-kw">var</span> x15: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2255"> <span class="tok-kw">var</span> x16: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2256"> mulxU64(&x15, &x16, x6, <span class="tok-number">0xff3d81e5df1aa419</span>);</span> <span class="line" id="L2257"> <span class="tok-kw">var</span> x17: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2258"> <span class="tok-kw">var</span> x18: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2259"> mulxU64(&x17, &x18, x6, <span class="tok-number">0x2d319b2419b409a9</span>);</span> <span class="line" id="L2260"> <span class="tok-kw">var</span> x19: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2261"> <span class="tok-kw">var</span> x20: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2262"> addcarryxU64(&x19, &x20, <span class="tok-number">0x0</span>, x18, x15);</span> <span class="line" id="L2263"> <span class="tok-kw">var</span> x21: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2264"> <span class="tok-kw">var</span> x22: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2265"> addcarryxU64(&x21, &x22, x20, x16, x13);</span> <span class="line" id="L2266"> <span class="tok-kw">var</span> x23: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2267"> <span class="tok-kw">var</span> x24: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2268"> addcarryxU64(&x23, &x24, x22, x14, x11);</span> <span class="line" id="L2269"> <span class="tok-kw">var</span> x25: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2270"> <span class="tok-kw">var</span> x26: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2271"> addcarryxU64(&x25, &x26, x24, x12, x9);</span> <span class="line" id="L2272"> <span class="tok-kw">var</span> x27: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2273"> <span class="tok-kw">var</span> x28: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2274"> addcarryxU64(&x27, &x28, x26, x10, x7);</span> <span class="line" id="L2275"> <span class="tok-kw">var</span> x29: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2276"> <span class="tok-kw">var</span> x30: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2277"> mulxU64(&x29, &x30, x17, <span class="tok-number">0x6ed46089e88fdc45</span>);</span> <span class="line" id="L2278"> <span class="tok-kw">var</span> x31: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2279"> <span class="tok-kw">var</span> x32: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2280"> mulxU64(&x31, &x32, x29, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2281"> <span class="tok-kw">var</span> x33: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2282"> <span class="tok-kw">var</span> x34: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2283"> mulxU64(&x33, &x34, x29, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2284"> <span class="tok-kw">var</span> x35: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2285"> <span class="tok-kw">var</span> x36: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2286"> mulxU64(&x35, &x36, x29, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2287"> <span class="tok-kw">var</span> x37: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2288"> <span class="tok-kw">var</span> x38: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2289"> mulxU64(&x37, &x38, x29, <span class="tok-number">0xc7634d81f4372ddf</span>);</span> <span class="line" id="L2290"> <span class="tok-kw">var</span> x39: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2291"> <span class="tok-kw">var</span> x40: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2292"> mulxU64(&x39, &x40, x29, <span class="tok-number">0x581a0db248b0a77a</span>);</span> <span class="line" id="L2293"> <span class="tok-kw">var</span> x41: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2294"> <span class="tok-kw">var</span> x42: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2295"> mulxU64(&x41, &x42, x29, <span class="tok-number">0xecec196accc52973</span>);</span> <span class="line" id="L2296"> <span class="tok-kw">var</span> x43: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2297"> <span class="tok-kw">var</span> x44: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2298"> addcarryxU64(&x43, &x44, <span class="tok-number">0x0</span>, x42, x39);</span> <span class="line" id="L2299"> <span class="tok-kw">var</span> x45: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2300"> <span class="tok-kw">var</span> x46: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2301"> addcarryxU64(&x45, &x46, x44, x40, x37);</span> <span class="line" id="L2302"> <span class="tok-kw">var</span> x47: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2303"> <span class="tok-kw">var</span> x48: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2304"> addcarryxU64(&x47, &x48, x46, x38, x35);</span> <span class="line" id="L2305"> <span class="tok-kw">var</span> x49: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2306"> <span class="tok-kw">var</span> x50: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2307"> addcarryxU64(&x49, &x50, x48, x36, x33);</span> <span class="line" id="L2308"> <span class="tok-kw">var</span> x51: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2309"> <span class="tok-kw">var</span> x52: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2310"> addcarryxU64(&x51, &x52, x50, x34, x31);</span> <span class="line" id="L2311"> <span class="tok-kw">var</span> x53: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2312"> <span class="tok-kw">var</span> x54: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2313"> addcarryxU64(&x53, &x54, <span class="tok-number">0x0</span>, x17, x41);</span> <span class="line" id="L2314"> <span class="tok-kw">var</span> x55: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2315"> <span class="tok-kw">var</span> x56: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2316"> addcarryxU64(&x55, &x56, x54, x19, x43);</span> <span class="line" id="L2317"> <span class="tok-kw">var</span> x57: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2318"> <span class="tok-kw">var</span> x58: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2319"> addcarryxU64(&x57, &x58, x56, x21, x45);</span> <span class="line" id="L2320"> <span class="tok-kw">var</span> x59: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2321"> <span class="tok-kw">var</span> x60: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2322"> addcarryxU64(&x59, &x60, x58, x23, x47);</span> <span class="line" id="L2323"> <span class="tok-kw">var</span> x61: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2324"> <span class="tok-kw">var</span> x62: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2325"> addcarryxU64(&x61, &x62, x60, x25, x49);</span> <span class="line" id="L2326"> <span class="tok-kw">var</span> x63: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2327"> <span class="tok-kw">var</span> x64: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2328"> addcarryxU64(&x63, &x64, x62, x27, x51);</span> <span class="line" id="L2329"> <span class="tok-kw">var</span> x65: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2330"> <span class="tok-kw">var</span> x66: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2331"> addcarryxU64(&x65, &x66, x64, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x28) + x8), (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x52) + x32));</span> <span class="line" id="L2332"> <span class="tok-kw">var</span> x67: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2333"> <span class="tok-kw">var</span> x68: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2334"> mulxU64(&x67, &x68, x1, <span class="tok-number">0xc84ee012b39bf21</span>);</span> <span class="line" id="L2335"> <span class="tok-kw">var</span> x69: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2336"> <span class="tok-kw">var</span> x70: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2337"> mulxU64(&x69, &x70, x1, <span class="tok-number">0x3fb05b7a28266895</span>);</span> <span class="line" id="L2338"> <span class="tok-kw">var</span> x71: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2339"> <span class="tok-kw">var</span> x72: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2340"> mulxU64(&x71, &x72, x1, <span class="tok-number">0xd40d49174aab1cc5</span>);</span> <span class="line" id="L2341"> <span class="tok-kw">var</span> x73: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2342"> <span class="tok-kw">var</span> x74: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2343"> mulxU64(&x73, &x74, x1, <span class="tok-number">0xbc3e483afcb82947</span>);</span> <span class="line" id="L2344"> <span class="tok-kw">var</span> x75: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2345"> <span class="tok-kw">var</span> x76: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2346"> mulxU64(&x75, &x76, x1, <span class="tok-number">0xff3d81e5df1aa419</span>);</span> <span class="line" id="L2347"> <span class="tok-kw">var</span> x77: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2348"> <span class="tok-kw">var</span> x78: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2349"> mulxU64(&x77, &x78, x1, <span class="tok-number">0x2d319b2419b409a9</span>);</span> <span class="line" id="L2350"> <span class="tok-kw">var</span> x79: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2351"> <span class="tok-kw">var</span> x80: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2352"> addcarryxU64(&x79, &x80, <span class="tok-number">0x0</span>, x78, x75);</span> <span class="line" id="L2353"> <span class="tok-kw">var</span> x81: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2354"> <span class="tok-kw">var</span> x82: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2355"> addcarryxU64(&x81, &x82, x80, x76, x73);</span> <span class="line" id="L2356"> <span class="tok-kw">var</span> x83: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2357"> <span class="tok-kw">var</span> x84: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2358"> addcarryxU64(&x83, &x84, x82, x74, x71);</span> <span class="line" id="L2359"> <span class="tok-kw">var</span> x85: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2360"> <span class="tok-kw">var</span> x86: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2361"> addcarryxU64(&x85, &x86, x84, x72, x69);</span> <span class="line" id="L2362"> <span class="tok-kw">var</span> x87: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2363"> <span class="tok-kw">var</span> x88: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2364"> addcarryxU64(&x87, &x88, x86, x70, x67);</span> <span class="line" id="L2365"> <span class="tok-kw">var</span> x89: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2366"> <span class="tok-kw">var</span> x90: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2367"> addcarryxU64(&x89, &x90, <span class="tok-number">0x0</span>, x55, x77);</span> <span class="line" id="L2368"> <span class="tok-kw">var</span> x91: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2369"> <span class="tok-kw">var</span> x92: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2370"> addcarryxU64(&x91, &x92, x90, x57, x79);</span> <span class="line" id="L2371"> <span class="tok-kw">var</span> x93: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2372"> <span class="tok-kw">var</span> x94: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2373"> addcarryxU64(&x93, &x94, x92, x59, x81);</span> <span class="line" id="L2374"> <span class="tok-kw">var</span> x95: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2375"> <span class="tok-kw">var</span> x96: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2376"> addcarryxU64(&x95, &x96, x94, x61, x83);</span> <span class="line" id="L2377"> <span class="tok-kw">var</span> x97: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2378"> <span class="tok-kw">var</span> x98: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2379"> addcarryxU64(&x97, &x98, x96, x63, x85);</span> <span class="line" id="L2380"> <span class="tok-kw">var</span> x99: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2381"> <span class="tok-kw">var</span> x100: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2382"> addcarryxU64(&x99, &x100, x98, x65, x87);</span> <span class="line" id="L2383"> <span class="tok-kw">var</span> x101: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2384"> <span class="tok-kw">var</span> x102: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2385"> mulxU64(&x101, &x102, x89, <span class="tok-number">0x6ed46089e88fdc45</span>);</span> <span class="line" id="L2386"> <span class="tok-kw">var</span> x103: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2387"> <span class="tok-kw">var</span> x104: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2388"> mulxU64(&x103, &x104, x101, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2389"> <span class="tok-kw">var</span> x105: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2390"> <span class="tok-kw">var</span> x106: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2391"> mulxU64(&x105, &x106, x101, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2392"> <span class="tok-kw">var</span> x107: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2393"> <span class="tok-kw">var</span> x108: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2394"> mulxU64(&x107, &x108, x101, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2395"> <span class="tok-kw">var</span> x109: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2396"> <span class="tok-kw">var</span> x110: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2397"> mulxU64(&x109, &x110, x101, <span class="tok-number">0xc7634d81f4372ddf</span>);</span> <span class="line" id="L2398"> <span class="tok-kw">var</span> x111: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2399"> <span class="tok-kw">var</span> x112: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2400"> mulxU64(&x111, &x112, x101, <span class="tok-number">0x581a0db248b0a77a</span>);</span> <span class="line" id="L2401"> <span class="tok-kw">var</span> x113: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2402"> <span class="tok-kw">var</span> x114: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2403"> mulxU64(&x113, &x114, x101, <span class="tok-number">0xecec196accc52973</span>);</span> <span class="line" id="L2404"> <span class="tok-kw">var</span> x115: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2405"> <span class="tok-kw">var</span> x116: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2406"> addcarryxU64(&x115, &x116, <span class="tok-number">0x0</span>, x114, x111);</span> <span class="line" id="L2407"> <span class="tok-kw">var</span> x117: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2408"> <span class="tok-kw">var</span> x118: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2409"> addcarryxU64(&x117, &x118, x116, x112, x109);</span> <span class="line" id="L2410"> <span class="tok-kw">var</span> x119: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2411"> <span class="tok-kw">var</span> x120: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2412"> addcarryxU64(&x119, &x120, x118, x110, x107);</span> <span class="line" id="L2413"> <span class="tok-kw">var</span> x121: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2414"> <span class="tok-kw">var</span> x122: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2415"> addcarryxU64(&x121, &x122, x120, x108, x105);</span> <span class="line" id="L2416"> <span class="tok-kw">var</span> x123: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2417"> <span class="tok-kw">var</span> x124: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2418"> addcarryxU64(&x123, &x124, x122, x106, x103);</span> <span class="line" id="L2419"> <span class="tok-kw">var</span> x125: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2420"> <span class="tok-kw">var</span> x126: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2421"> addcarryxU64(&x125, &x126, <span class="tok-number">0x0</span>, x89, x113);</span> <span class="line" id="L2422"> <span class="tok-kw">var</span> x127: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2423"> <span class="tok-kw">var</span> x128: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2424"> addcarryxU64(&x127, &x128, x126, x91, x115);</span> <span class="line" id="L2425"> <span class="tok-kw">var</span> x129: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2426"> <span class="tok-kw">var</span> x130: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2427"> addcarryxU64(&x129, &x130, x128, x93, x117);</span> <span class="line" id="L2428"> <span class="tok-kw">var</span> x131: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2429"> <span class="tok-kw">var</span> x132: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2430"> addcarryxU64(&x131, &x132, x130, x95, x119);</span> <span class="line" id="L2431"> <span class="tok-kw">var</span> x133: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2432"> <span class="tok-kw">var</span> x134: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2433"> addcarryxU64(&x133, &x134, x132, x97, x121);</span> <span class="line" id="L2434"> <span class="tok-kw">var</span> x135: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2435"> <span class="tok-kw">var</span> x136: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2436"> addcarryxU64(&x135, &x136, x134, x99, x123);</span> <span class="line" id="L2437"> <span class="tok-kw">var</span> x137: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2438"> <span class="tok-kw">var</span> x138: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2439"> addcarryxU64(&x137, &x138, x136, ((<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x100) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x66)) + (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x88) + x68)), (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x124) + x104));</span> <span class="line" id="L2440"> <span class="tok-kw">var</span> x139: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2441"> <span class="tok-kw">var</span> x140: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2442"> mulxU64(&x139, &x140, x2, <span class="tok-number">0xc84ee012b39bf21</span>);</span> <span class="line" id="L2443"> <span class="tok-kw">var</span> x141: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2444"> <span class="tok-kw">var</span> x142: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2445"> mulxU64(&x141, &x142, x2, <span class="tok-number">0x3fb05b7a28266895</span>);</span> <span class="line" id="L2446"> <span class="tok-kw">var</span> x143: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2447"> <span class="tok-kw">var</span> x144: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2448"> mulxU64(&x143, &x144, x2, <span class="tok-number">0xd40d49174aab1cc5</span>);</span> <span class="line" id="L2449"> <span class="tok-kw">var</span> x145: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2450"> <span class="tok-kw">var</span> x146: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2451"> mulxU64(&x145, &x146, x2, <span class="tok-number">0xbc3e483afcb82947</span>);</span> <span class="line" id="L2452"> <span class="tok-kw">var</span> x147: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2453"> <span class="tok-kw">var</span> x148: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2454"> mulxU64(&x147, &x148, x2, <span class="tok-number">0xff3d81e5df1aa419</span>);</span> <span class="line" id="L2455"> <span class="tok-kw">var</span> x149: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2456"> <span class="tok-kw">var</span> x150: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2457"> mulxU64(&x149, &x150, x2, <span class="tok-number">0x2d319b2419b409a9</span>);</span> <span class="line" id="L2458"> <span class="tok-kw">var</span> x151: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2459"> <span class="tok-kw">var</span> x152: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2460"> addcarryxU64(&x151, &x152, <span class="tok-number">0x0</span>, x150, x147);</span> <span class="line" id="L2461"> <span class="tok-kw">var</span> x153: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2462"> <span class="tok-kw">var</span> x154: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2463"> addcarryxU64(&x153, &x154, x152, x148, x145);</span> <span class="line" id="L2464"> <span class="tok-kw">var</span> x155: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2465"> <span class="tok-kw">var</span> x156: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2466"> addcarryxU64(&x155, &x156, x154, x146, x143);</span> <span class="line" id="L2467"> <span class="tok-kw">var</span> x157: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2468"> <span class="tok-kw">var</span> x158: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2469"> addcarryxU64(&x157, &x158, x156, x144, x141);</span> <span class="line" id="L2470"> <span class="tok-kw">var</span> x159: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2471"> <span class="tok-kw">var</span> x160: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2472"> addcarryxU64(&x159, &x160, x158, x142, x139);</span> <span class="line" id="L2473"> <span class="tok-kw">var</span> x161: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2474"> <span class="tok-kw">var</span> x162: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2475"> addcarryxU64(&x161, &x162, <span class="tok-number">0x0</span>, x127, x149);</span> <span class="line" id="L2476"> <span class="tok-kw">var</span> x163: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2477"> <span class="tok-kw">var</span> x164: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2478"> addcarryxU64(&x163, &x164, x162, x129, x151);</span> <span class="line" id="L2479"> <span class="tok-kw">var</span> x165: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2480"> <span class="tok-kw">var</span> x166: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2481"> addcarryxU64(&x165, &x166, x164, x131, x153);</span> <span class="line" id="L2482"> <span class="tok-kw">var</span> x167: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2483"> <span class="tok-kw">var</span> x168: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2484"> addcarryxU64(&x167, &x168, x166, x133, x155);</span> <span class="line" id="L2485"> <span class="tok-kw">var</span> x169: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2486"> <span class="tok-kw">var</span> x170: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2487"> addcarryxU64(&x169, &x170, x168, x135, x157);</span> <span class="line" id="L2488"> <span class="tok-kw">var</span> x171: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2489"> <span class="tok-kw">var</span> x172: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2490"> addcarryxU64(&x171, &x172, x170, x137, x159);</span> <span class="line" id="L2491"> <span class="tok-kw">var</span> x173: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2492"> <span class="tok-kw">var</span> x174: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2493"> mulxU64(&x173, &x174, x161, <span class="tok-number">0x6ed46089e88fdc45</span>);</span> <span class="line" id="L2494"> <span class="tok-kw">var</span> x175: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2495"> <span class="tok-kw">var</span> x176: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2496"> mulxU64(&x175, &x176, x173, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2497"> <span class="tok-kw">var</span> x177: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2498"> <span class="tok-kw">var</span> x178: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2499"> mulxU64(&x177, &x178, x173, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2500"> <span class="tok-kw">var</span> x179: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2501"> <span class="tok-kw">var</span> x180: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2502"> mulxU64(&x179, &x180, x173, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2503"> <span class="tok-kw">var</span> x181: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2504"> <span class="tok-kw">var</span> x182: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2505"> mulxU64(&x181, &x182, x173, <span class="tok-number">0xc7634d81f4372ddf</span>);</span> <span class="line" id="L2506"> <span class="tok-kw">var</span> x183: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2507"> <span class="tok-kw">var</span> x184: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2508"> mulxU64(&x183, &x184, x173, <span class="tok-number">0x581a0db248b0a77a</span>);</span> <span class="line" id="L2509"> <span class="tok-kw">var</span> x185: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2510"> <span class="tok-kw">var</span> x186: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2511"> mulxU64(&x185, &x186, x173, <span class="tok-number">0xecec196accc52973</span>);</span> <span class="line" id="L2512"> <span class="tok-kw">var</span> x187: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2513"> <span class="tok-kw">var</span> x188: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2514"> addcarryxU64(&x187, &x188, <span class="tok-number">0x0</span>, x186, x183);</span> <span class="line" id="L2515"> <span class="tok-kw">var</span> x189: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2516"> <span class="tok-kw">var</span> x190: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2517"> addcarryxU64(&x189, &x190, x188, x184, x181);</span> <span class="line" id="L2518"> <span class="tok-kw">var</span> x191: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2519"> <span class="tok-kw">var</span> x192: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2520"> addcarryxU64(&x191, &x192, x190, x182, x179);</span> <span class="line" id="L2521"> <span class="tok-kw">var</span> x193: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2522"> <span class="tok-kw">var</span> x194: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2523"> addcarryxU64(&x193, &x194, x192, x180, x177);</span> <span class="line" id="L2524"> <span class="tok-kw">var</span> x195: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2525"> <span class="tok-kw">var</span> x196: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2526"> addcarryxU64(&x195, &x196, x194, x178, x175);</span> <span class="line" id="L2527"> <span class="tok-kw">var</span> x197: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2528"> <span class="tok-kw">var</span> x198: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2529"> addcarryxU64(&x197, &x198, <span class="tok-number">0x0</span>, x161, x185);</span> <span class="line" id="L2530"> <span class="tok-kw">var</span> x199: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2531"> <span class="tok-kw">var</span> x200: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2532"> addcarryxU64(&x199, &x200, x198, x163, x187);</span> <span class="line" id="L2533"> <span class="tok-kw">var</span> x201: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2534"> <span class="tok-kw">var</span> x202: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2535"> addcarryxU64(&x201, &x202, x200, x165, x189);</span> <span class="line" id="L2536"> <span class="tok-kw">var</span> x203: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2537"> <span class="tok-kw">var</span> x204: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2538"> addcarryxU64(&x203, &x204, x202, x167, x191);</span> <span class="line" id="L2539"> <span class="tok-kw">var</span> x205: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2540"> <span class="tok-kw">var</span> x206: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2541"> addcarryxU64(&x205, &x206, x204, x169, x193);</span> <span class="line" id="L2542"> <span class="tok-kw">var</span> x207: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2543"> <span class="tok-kw">var</span> x208: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2544"> addcarryxU64(&x207, &x208, x206, x171, x195);</span> <span class="line" id="L2545"> <span class="tok-kw">var</span> x209: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2546"> <span class="tok-kw">var</span> x210: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2547"> addcarryxU64(&x209, &x210, x208, ((<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x172) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x138)) + (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x160) + x140)), (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x196) + x176));</span> <span class="line" id="L2548"> <span class="tok-kw">var</span> x211: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2549"> <span class="tok-kw">var</span> x212: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2550"> mulxU64(&x211, &x212, x3, <span class="tok-number">0xc84ee012b39bf21</span>);</span> <span class="line" id="L2551"> <span class="tok-kw">var</span> x213: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2552"> <span class="tok-kw">var</span> x214: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2553"> mulxU64(&x213, &x214, x3, <span class="tok-number">0x3fb05b7a28266895</span>);</span> <span class="line" id="L2554"> <span class="tok-kw">var</span> x215: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2555"> <span class="tok-kw">var</span> x216: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2556"> mulxU64(&x215, &x216, x3, <span class="tok-number">0xd40d49174aab1cc5</span>);</span> <span class="line" id="L2557"> <span class="tok-kw">var</span> x217: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2558"> <span class="tok-kw">var</span> x218: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2559"> mulxU64(&x217, &x218, x3, <span class="tok-number">0xbc3e483afcb82947</span>);</span> <span class="line" id="L2560"> <span class="tok-kw">var</span> x219: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2561"> <span class="tok-kw">var</span> x220: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2562"> mulxU64(&x219, &x220, x3, <span class="tok-number">0xff3d81e5df1aa419</span>);</span> <span class="line" id="L2563"> <span class="tok-kw">var</span> x221: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2564"> <span class="tok-kw">var</span> x222: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2565"> mulxU64(&x221, &x222, x3, <span class="tok-number">0x2d319b2419b409a9</span>);</span> <span class="line" id="L2566"> <span class="tok-kw">var</span> x223: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2567"> <span class="tok-kw">var</span> x224: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2568"> addcarryxU64(&x223, &x224, <span class="tok-number">0x0</span>, x222, x219);</span> <span class="line" id="L2569"> <span class="tok-kw">var</span> x225: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2570"> <span class="tok-kw">var</span> x226: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2571"> addcarryxU64(&x225, &x226, x224, x220, x217);</span> <span class="line" id="L2572"> <span class="tok-kw">var</span> x227: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2573"> <span class="tok-kw">var</span> x228: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2574"> addcarryxU64(&x227, &x228, x226, x218, x215);</span> <span class="line" id="L2575"> <span class="tok-kw">var</span> x229: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2576"> <span class="tok-kw">var</span> x230: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2577"> addcarryxU64(&x229, &x230, x228, x216, x213);</span> <span class="line" id="L2578"> <span class="tok-kw">var</span> x231: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2579"> <span class="tok-kw">var</span> x232: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2580"> addcarryxU64(&x231, &x232, x230, x214, x211);</span> <span class="line" id="L2581"> <span class="tok-kw">var</span> x233: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2582"> <span class="tok-kw">var</span> x234: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2583"> addcarryxU64(&x233, &x234, <span class="tok-number">0x0</span>, x199, x221);</span> <span class="line" id="L2584"> <span class="tok-kw">var</span> x235: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2585"> <span class="tok-kw">var</span> x236: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2586"> addcarryxU64(&x235, &x236, x234, x201, x223);</span> <span class="line" id="L2587"> <span class="tok-kw">var</span> x237: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2588"> <span class="tok-kw">var</span> x238: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2589"> addcarryxU64(&x237, &x238, x236, x203, x225);</span> <span class="line" id="L2590"> <span class="tok-kw">var</span> x239: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2591"> <span class="tok-kw">var</span> x240: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2592"> addcarryxU64(&x239, &x240, x238, x205, x227);</span> <span class="line" id="L2593"> <span class="tok-kw">var</span> x241: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2594"> <span class="tok-kw">var</span> x242: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2595"> addcarryxU64(&x241, &x242, x240, x207, x229);</span> <span class="line" id="L2596"> <span class="tok-kw">var</span> x243: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2597"> <span class="tok-kw">var</span> x244: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2598"> addcarryxU64(&x243, &x244, x242, x209, x231);</span> <span class="line" id="L2599"> <span class="tok-kw">var</span> x245: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2600"> <span class="tok-kw">var</span> x246: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2601"> mulxU64(&x245, &x246, x233, <span class="tok-number">0x6ed46089e88fdc45</span>);</span> <span class="line" id="L2602"> <span class="tok-kw">var</span> x247: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2603"> <span class="tok-kw">var</span> x248: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2604"> mulxU64(&x247, &x248, x245, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2605"> <span class="tok-kw">var</span> x249: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2606"> <span class="tok-kw">var</span> x250: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2607"> mulxU64(&x249, &x250, x245, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2608"> <span class="tok-kw">var</span> x251: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2609"> <span class="tok-kw">var</span> x252: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2610"> mulxU64(&x251, &x252, x245, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2611"> <span class="tok-kw">var</span> x253: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2612"> <span class="tok-kw">var</span> x254: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2613"> mulxU64(&x253, &x254, x245, <span class="tok-number">0xc7634d81f4372ddf</span>);</span> <span class="line" id="L2614"> <span class="tok-kw">var</span> x255: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2615"> <span class="tok-kw">var</span> x256: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2616"> mulxU64(&x255, &x256, x245, <span class="tok-number">0x581a0db248b0a77a</span>);</span> <span class="line" id="L2617"> <span class="tok-kw">var</span> x257: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2618"> <span class="tok-kw">var</span> x258: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2619"> mulxU64(&x257, &x258, x245, <span class="tok-number">0xecec196accc52973</span>);</span> <span class="line" id="L2620"> <span class="tok-kw">var</span> x259: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2621"> <span class="tok-kw">var</span> x260: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2622"> addcarryxU64(&x259, &x260, <span class="tok-number">0x0</span>, x258, x255);</span> <span class="line" id="L2623"> <span class="tok-kw">var</span> x261: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2624"> <span class="tok-kw">var</span> x262: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2625"> addcarryxU64(&x261, &x262, x260, x256, x253);</span> <span class="line" id="L2626"> <span class="tok-kw">var</span> x263: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2627"> <span class="tok-kw">var</span> x264: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2628"> addcarryxU64(&x263, &x264, x262, x254, x251);</span> <span class="line" id="L2629"> <span class="tok-kw">var</span> x265: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2630"> <span class="tok-kw">var</span> x266: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2631"> addcarryxU64(&x265, &x266, x264, x252, x249);</span> <span class="line" id="L2632"> <span class="tok-kw">var</span> x267: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2633"> <span class="tok-kw">var</span> x268: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2634"> addcarryxU64(&x267, &x268, x266, x250, x247);</span> <span class="line" id="L2635"> <span class="tok-kw">var</span> x269: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2636"> <span class="tok-kw">var</span> x270: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2637"> addcarryxU64(&x269, &x270, <span class="tok-number">0x0</span>, x233, x257);</span> <span class="line" id="L2638"> <span class="tok-kw">var</span> x271: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2639"> <span class="tok-kw">var</span> x272: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2640"> addcarryxU64(&x271, &x272, x270, x235, x259);</span> <span class="line" id="L2641"> <span class="tok-kw">var</span> x273: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2642"> <span class="tok-kw">var</span> x274: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2643"> addcarryxU64(&x273, &x274, x272, x237, x261);</span> <span class="line" id="L2644"> <span class="tok-kw">var</span> x275: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2645"> <span class="tok-kw">var</span> x276: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2646"> addcarryxU64(&x275, &x276, x274, x239, x263);</span> <span class="line" id="L2647"> <span class="tok-kw">var</span> x277: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2648"> <span class="tok-kw">var</span> x278: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2649"> addcarryxU64(&x277, &x278, x276, x241, x265);</span> <span class="line" id="L2650"> <span class="tok-kw">var</span> x279: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2651"> <span class="tok-kw">var</span> x280: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2652"> addcarryxU64(&x279, &x280, x278, x243, x267);</span> <span class="line" id="L2653"> <span class="tok-kw">var</span> x281: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2654"> <span class="tok-kw">var</span> x282: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2655"> addcarryxU64(&x281, &x282, x280, ((<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x244) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x210)) + (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x232) + x212)), (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x268) + x248));</span> <span class="line" id="L2656"> <span class="tok-kw">var</span> x283: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2657"> <span class="tok-kw">var</span> x284: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2658"> mulxU64(&x283, &x284, x4, <span class="tok-number">0xc84ee012b39bf21</span>);</span> <span class="line" id="L2659"> <span class="tok-kw">var</span> x285: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2660"> <span class="tok-kw">var</span> x286: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2661"> mulxU64(&x285, &x286, x4, <span class="tok-number">0x3fb05b7a28266895</span>);</span> <span class="line" id="L2662"> <span class="tok-kw">var</span> x287: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2663"> <span class="tok-kw">var</span> x288: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2664"> mulxU64(&x287, &x288, x4, <span class="tok-number">0xd40d49174aab1cc5</span>);</span> <span class="line" id="L2665"> <span class="tok-kw">var</span> x289: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2666"> <span class="tok-kw">var</span> x290: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2667"> mulxU64(&x289, &x290, x4, <span class="tok-number">0xbc3e483afcb82947</span>);</span> <span class="line" id="L2668"> <span class="tok-kw">var</span> x291: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2669"> <span class="tok-kw">var</span> x292: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2670"> mulxU64(&x291, &x292, x4, <span class="tok-number">0xff3d81e5df1aa419</span>);</span> <span class="line" id="L2671"> <span class="tok-kw">var</span> x293: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2672"> <span class="tok-kw">var</span> x294: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2673"> mulxU64(&x293, &x294, x4, <span class="tok-number">0x2d319b2419b409a9</span>);</span> <span class="line" id="L2674"> <span class="tok-kw">var</span> x295: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2675"> <span class="tok-kw">var</span> x296: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2676"> addcarryxU64(&x295, &x296, <span class="tok-number">0x0</span>, x294, x291);</span> <span class="line" id="L2677"> <span class="tok-kw">var</span> x297: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2678"> <span class="tok-kw">var</span> x298: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2679"> addcarryxU64(&x297, &x298, x296, x292, x289);</span> <span class="line" id="L2680"> <span class="tok-kw">var</span> x299: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2681"> <span class="tok-kw">var</span> x300: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2682"> addcarryxU64(&x299, &x300, x298, x290, x287);</span> <span class="line" id="L2683"> <span class="tok-kw">var</span> x301: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2684"> <span class="tok-kw">var</span> x302: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2685"> addcarryxU64(&x301, &x302, x300, x288, x285);</span> <span class="line" id="L2686"> <span class="tok-kw">var</span> x303: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2687"> <span class="tok-kw">var</span> x304: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2688"> addcarryxU64(&x303, &x304, x302, x286, x283);</span> <span class="line" id="L2689"> <span class="tok-kw">var</span> x305: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2690"> <span class="tok-kw">var</span> x306: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2691"> addcarryxU64(&x305, &x306, <span class="tok-number">0x0</span>, x271, x293);</span> <span class="line" id="L2692"> <span class="tok-kw">var</span> x307: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2693"> <span class="tok-kw">var</span> x308: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2694"> addcarryxU64(&x307, &x308, x306, x273, x295);</span> <span class="line" id="L2695"> <span class="tok-kw">var</span> x309: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2696"> <span class="tok-kw">var</span> x310: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2697"> addcarryxU64(&x309, &x310, x308, x275, x297);</span> <span class="line" id="L2698"> <span class="tok-kw">var</span> x311: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2699"> <span class="tok-kw">var</span> x312: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2700"> addcarryxU64(&x311, &x312, x310, x277, x299);</span> <span class="line" id="L2701"> <span class="tok-kw">var</span> x313: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2702"> <span class="tok-kw">var</span> x314: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2703"> addcarryxU64(&x313, &x314, x312, x279, x301);</span> <span class="line" id="L2704"> <span class="tok-kw">var</span> x315: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2705"> <span class="tok-kw">var</span> x316: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2706"> addcarryxU64(&x315, &x316, x314, x281, x303);</span> <span class="line" id="L2707"> <span class="tok-kw">var</span> x317: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2708"> <span class="tok-kw">var</span> x318: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2709"> mulxU64(&x317, &x318, x305, <span class="tok-number">0x6ed46089e88fdc45</span>);</span> <span class="line" id="L2710"> <span class="tok-kw">var</span> x319: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2711"> <span class="tok-kw">var</span> x320: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2712"> mulxU64(&x319, &x320, x317, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2713"> <span class="tok-kw">var</span> x321: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2714"> <span class="tok-kw">var</span> x322: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2715"> mulxU64(&x321, &x322, x317, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2716"> <span class="tok-kw">var</span> x323: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2717"> <span class="tok-kw">var</span> x324: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2718"> mulxU64(&x323, &x324, x317, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2719"> <span class="tok-kw">var</span> x325: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2720"> <span class="tok-kw">var</span> x326: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2721"> mulxU64(&x325, &x326, x317, <span class="tok-number">0xc7634d81f4372ddf</span>);</span> <span class="line" id="L2722"> <span class="tok-kw">var</span> x327: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2723"> <span class="tok-kw">var</span> x328: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2724"> mulxU64(&x327, &x328, x317, <span class="tok-number">0x581a0db248b0a77a</span>);</span> <span class="line" id="L2725"> <span class="tok-kw">var</span> x329: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2726"> <span class="tok-kw">var</span> x330: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2727"> mulxU64(&x329, &x330, x317, <span class="tok-number">0xecec196accc52973</span>);</span> <span class="line" id="L2728"> <span class="tok-kw">var</span> x331: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2729"> <span class="tok-kw">var</span> x332: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2730"> addcarryxU64(&x331, &x332, <span class="tok-number">0x0</span>, x330, x327);</span> <span class="line" id="L2731"> <span class="tok-kw">var</span> x333: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2732"> <span class="tok-kw">var</span> x334: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2733"> addcarryxU64(&x333, &x334, x332, x328, x325);</span> <span class="line" id="L2734"> <span class="tok-kw">var</span> x335: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2735"> <span class="tok-kw">var</span> x336: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2736"> addcarryxU64(&x335, &x336, x334, x326, x323);</span> <span class="line" id="L2737"> <span class="tok-kw">var</span> x337: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2738"> <span class="tok-kw">var</span> x338: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2739"> addcarryxU64(&x337, &x338, x336, x324, x321);</span> <span class="line" id="L2740"> <span class="tok-kw">var</span> x339: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2741"> <span class="tok-kw">var</span> x340: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2742"> addcarryxU64(&x339, &x340, x338, x322, x319);</span> <span class="line" id="L2743"> <span class="tok-kw">var</span> x341: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2744"> <span class="tok-kw">var</span> x342: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2745"> addcarryxU64(&x341, &x342, <span class="tok-number">0x0</span>, x305, x329);</span> <span class="line" id="L2746"> <span class="tok-kw">var</span> x343: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2747"> <span class="tok-kw">var</span> x344: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2748"> addcarryxU64(&x343, &x344, x342, x307, x331);</span> <span class="line" id="L2749"> <span class="tok-kw">var</span> x345: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2750"> <span class="tok-kw">var</span> x346: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2751"> addcarryxU64(&x345, &x346, x344, x309, x333);</span> <span class="line" id="L2752"> <span class="tok-kw">var</span> x347: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2753"> <span class="tok-kw">var</span> x348: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2754"> addcarryxU64(&x347, &x348, x346, x311, x335);</span> <span class="line" id="L2755"> <span class="tok-kw">var</span> x349: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2756"> <span class="tok-kw">var</span> x350: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2757"> addcarryxU64(&x349, &x350, x348, x313, x337);</span> <span class="line" id="L2758"> <span class="tok-kw">var</span> x351: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2759"> <span class="tok-kw">var</span> x352: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2760"> addcarryxU64(&x351, &x352, x350, x315, x339);</span> <span class="line" id="L2761"> <span class="tok-kw">var</span> x353: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2762"> <span class="tok-kw">var</span> x354: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2763"> addcarryxU64(&x353, &x354, x352, ((<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x316) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x282)) + (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x304) + x284)), (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x340) + x320));</span> <span class="line" id="L2764"> <span class="tok-kw">var</span> x355: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2765"> <span class="tok-kw">var</span> x356: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2766"> mulxU64(&x355, &x356, x5, <span class="tok-number">0xc84ee012b39bf21</span>);</span> <span class="line" id="L2767"> <span class="tok-kw">var</span> x357: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2768"> <span class="tok-kw">var</span> x358: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2769"> mulxU64(&x357, &x358, x5, <span class="tok-number">0x3fb05b7a28266895</span>);</span> <span class="line" id="L2770"> <span class="tok-kw">var</span> x359: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2771"> <span class="tok-kw">var</span> x360: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2772"> mulxU64(&x359, &x360, x5, <span class="tok-number">0xd40d49174aab1cc5</span>);</span> <span class="line" id="L2773"> <span class="tok-kw">var</span> x361: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2774"> <span class="tok-kw">var</span> x362: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2775"> mulxU64(&x361, &x362, x5, <span class="tok-number">0xbc3e483afcb82947</span>);</span> <span class="line" id="L2776"> <span class="tok-kw">var</span> x363: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2777"> <span class="tok-kw">var</span> x364: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2778"> mulxU64(&x363, &x364, x5, <span class="tok-number">0xff3d81e5df1aa419</span>);</span> <span class="line" id="L2779"> <span class="tok-kw">var</span> x365: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2780"> <span class="tok-kw">var</span> x366: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2781"> mulxU64(&x365, &x366, x5, <span class="tok-number">0x2d319b2419b409a9</span>);</span> <span class="line" id="L2782"> <span class="tok-kw">var</span> x367: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2783"> <span class="tok-kw">var</span> x368: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2784"> addcarryxU64(&x367, &x368, <span class="tok-number">0x0</span>, x366, x363);</span> <span class="line" id="L2785"> <span class="tok-kw">var</span> x369: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2786"> <span class="tok-kw">var</span> x370: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2787"> addcarryxU64(&x369, &x370, x368, x364, x361);</span> <span class="line" id="L2788"> <span class="tok-kw">var</span> x371: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2789"> <span class="tok-kw">var</span> x372: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2790"> addcarryxU64(&x371, &x372, x370, x362, x359);</span> <span class="line" id="L2791"> <span class="tok-kw">var</span> x373: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2792"> <span class="tok-kw">var</span> x374: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2793"> addcarryxU64(&x373, &x374, x372, x360, x357);</span> <span class="line" id="L2794"> <span class="tok-kw">var</span> x375: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2795"> <span class="tok-kw">var</span> x376: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2796"> addcarryxU64(&x375, &x376, x374, x358, x355);</span> <span class="line" id="L2797"> <span class="tok-kw">var</span> x377: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2798"> <span class="tok-kw">var</span> x378: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2799"> addcarryxU64(&x377, &x378, <span class="tok-number">0x0</span>, x343, x365);</span> <span class="line" id="L2800"> <span class="tok-kw">var</span> x379: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2801"> <span class="tok-kw">var</span> x380: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2802"> addcarryxU64(&x379, &x380, x378, x345, x367);</span> <span class="line" id="L2803"> <span class="tok-kw">var</span> x381: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2804"> <span class="tok-kw">var</span> x382: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2805"> addcarryxU64(&x381, &x382, x380, x347, x369);</span> <span class="line" id="L2806"> <span class="tok-kw">var</span> x383: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2807"> <span class="tok-kw">var</span> x384: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2808"> addcarryxU64(&x383, &x384, x382, x349, x371);</span> <span class="line" id="L2809"> <span class="tok-kw">var</span> x385: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2810"> <span class="tok-kw">var</span> x386: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2811"> addcarryxU64(&x385, &x386, x384, x351, x373);</span> <span class="line" id="L2812"> <span class="tok-kw">var</span> x387: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2813"> <span class="tok-kw">var</span> x388: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2814"> addcarryxU64(&x387, &x388, x386, x353, x375);</span> <span class="line" id="L2815"> <span class="tok-kw">var</span> x389: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2816"> <span class="tok-kw">var</span> x390: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2817"> mulxU64(&x389, &x390, x377, <span class="tok-number">0x6ed46089e88fdc45</span>);</span> <span class="line" id="L2818"> <span class="tok-kw">var</span> x391: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2819"> <span class="tok-kw">var</span> x392: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2820"> mulxU64(&x391, &x392, x389, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2821"> <span class="tok-kw">var</span> x393: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2822"> <span class="tok-kw">var</span> x394: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2823"> mulxU64(&x393, &x394, x389, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2824"> <span class="tok-kw">var</span> x395: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2825"> <span class="tok-kw">var</span> x396: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2826"> mulxU64(&x395, &x396, x389, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2827"> <span class="tok-kw">var</span> x397: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2828"> <span class="tok-kw">var</span> x398: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2829"> mulxU64(&x397, &x398, x389, <span class="tok-number">0xc7634d81f4372ddf</span>);</span> <span class="line" id="L2830"> <span class="tok-kw">var</span> x399: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2831"> <span class="tok-kw">var</span> x400: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2832"> mulxU64(&x399, &x400, x389, <span class="tok-number">0x581a0db248b0a77a</span>);</span> <span class="line" id="L2833"> <span class="tok-kw">var</span> x401: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2834"> <span class="tok-kw">var</span> x402: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2835"> mulxU64(&x401, &x402, x389, <span class="tok-number">0xecec196accc52973</span>);</span> <span class="line" id="L2836"> <span class="tok-kw">var</span> x403: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2837"> <span class="tok-kw">var</span> x404: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2838"> addcarryxU64(&x403, &x404, <span class="tok-number">0x0</span>, x402, x399);</span> <span class="line" id="L2839"> <span class="tok-kw">var</span> x405: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2840"> <span class="tok-kw">var</span> x406: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2841"> addcarryxU64(&x405, &x406, x404, x400, x397);</span> <span class="line" id="L2842"> <span class="tok-kw">var</span> x407: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2843"> <span class="tok-kw">var</span> x408: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2844"> addcarryxU64(&x407, &x408, x406, x398, x395);</span> <span class="line" id="L2845"> <span class="tok-kw">var</span> x409: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2846"> <span class="tok-kw">var</span> x410: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2847"> addcarryxU64(&x409, &x410, x408, x396, x393);</span> <span class="line" id="L2848"> <span class="tok-kw">var</span> x411: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2849"> <span class="tok-kw">var</span> x412: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2850"> addcarryxU64(&x411, &x412, x410, x394, x391);</span> <span class="line" id="L2851"> <span class="tok-kw">var</span> x413: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2852"> <span class="tok-kw">var</span> x414: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2853"> addcarryxU64(&x413, &x414, <span class="tok-number">0x0</span>, x377, x401);</span> <span class="line" id="L2854"> <span class="tok-kw">var</span> x415: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2855"> <span class="tok-kw">var</span> x416: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2856"> addcarryxU64(&x415, &x416, x414, x379, x403);</span> <span class="line" id="L2857"> <span class="tok-kw">var</span> x417: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2858"> <span class="tok-kw">var</span> x418: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2859"> addcarryxU64(&x417, &x418, x416, x381, x405);</span> <span class="line" id="L2860"> <span class="tok-kw">var</span> x419: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2861"> <span class="tok-kw">var</span> x420: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2862"> addcarryxU64(&x419, &x420, x418, x383, x407);</span> <span class="line" id="L2863"> <span class="tok-kw">var</span> x421: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2864"> <span class="tok-kw">var</span> x422: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2865"> addcarryxU64(&x421, &x422, x420, x385, x409);</span> <span class="line" id="L2866"> <span class="tok-kw">var</span> x423: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2867"> <span class="tok-kw">var</span> x424: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2868"> addcarryxU64(&x423, &x424, x422, x387, x411);</span> <span class="line" id="L2869"> <span class="tok-kw">var</span> x425: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2870"> <span class="tok-kw">var</span> x426: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2871"> addcarryxU64(&x425, &x426, x424, ((<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x388) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x354)) + (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x376) + x356)), (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x412) + x392));</span> <span class="line" id="L2872"> <span class="tok-kw">var</span> x427: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2873"> <span class="tok-kw">var</span> x428: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2874"> subborrowxU64(&x427, &x428, <span class="tok-number">0x0</span>, x415, <span class="tok-number">0xecec196accc52973</span>);</span> <span class="line" id="L2875"> <span class="tok-kw">var</span> x429: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2876"> <span class="tok-kw">var</span> x430: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2877"> subborrowxU64(&x429, &x430, x428, x417, <span class="tok-number">0x581a0db248b0a77a</span>);</span> <span class="line" id="L2878"> <span class="tok-kw">var</span> x431: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2879"> <span class="tok-kw">var</span> x432: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2880"> subborrowxU64(&x431, &x432, x430, x419, <span class="tok-number">0xc7634d81f4372ddf</span>);</span> <span class="line" id="L2881"> <span class="tok-kw">var</span> x433: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2882"> <span class="tok-kw">var</span> x434: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2883"> subborrowxU64(&x433, &x434, x432, x421, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2884"> <span class="tok-kw">var</span> x435: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2885"> <span class="tok-kw">var</span> x436: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2886"> subborrowxU64(&x435, &x436, x434, x423, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2887"> <span class="tok-kw">var</span> x437: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2888"> <span class="tok-kw">var</span> x438: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2889"> subborrowxU64(&x437, &x438, x436, x425, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2890"> <span class="tok-kw">var</span> x439: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2891"> <span class="tok-kw">var</span> x440: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2892"> subborrowxU64(&x439, &x440, x438, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x426), <span class="tok-number">0x0</span>);</span> <span class="line" id="L2893"> <span class="tok-kw">var</span> x441: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2894"> cmovznzU64(&x441, x440, x427, x415);</span> <span class="line" id="L2895"> <span class="tok-kw">var</span> x442: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2896"> cmovznzU64(&x442, x440, x429, x417);</span> <span class="line" id="L2897"> <span class="tok-kw">var</span> x443: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2898"> cmovznzU64(&x443, x440, x431, x419);</span> <span class="line" id="L2899"> <span class="tok-kw">var</span> x444: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2900"> cmovznzU64(&x444, x440, x433, x421);</span> <span class="line" id="L2901"> <span class="tok-kw">var</span> x445: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2902"> cmovznzU64(&x445, x440, x435, x423);</span> <span class="line" id="L2903"> <span class="tok-kw">var</span> x446: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2904"> cmovznzU64(&x446, x440, x437, x425);</span> <span class="line" id="L2905"> out1[<span class="tok-number">0</span>] = x441;</span> <span class="line" id="L2906"> out1[<span class="tok-number">1</span>] = x442;</span> <span class="line" id="L2907"> out1[<span class="tok-number">2</span>] = x443;</span> <span class="line" id="L2908"> out1[<span class="tok-number">3</span>] = x444;</span> <span class="line" id="L2909"> out1[<span class="tok-number">4</span>] = x445;</span> <span class="line" id="L2910"> out1[<span class="tok-number">5</span>] = x446;</span> <span class="line" id="L2911">}</span> <span class="line" id="L2912"></span> <span class="line" id="L2913"><span class="tok-comment">/// The function nonzero outputs a single non-zero word if the input is non-zero and zero otherwise.</span></span> <span class="line" id="L2914"><span class="tok-comment">///</span></span> <span class="line" id="L2915"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L2916"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L2917"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L2918"><span class="tok-comment">/// out1 = 0 ↔ eval (from_montgomery arg1) mod m = 0</span></span> <span class="line" id="L2919"><span class="tok-comment">///</span></span> <span class="line" id="L2920"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L2921"><span class="tok-comment">/// arg1: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L2922"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L2923"><span class="tok-comment">/// out1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L2924"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">nonzero</span>(out1: <span class="tok-type">u64</span>, arg1: [<span class="tok-number">6</span>]<span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L2925"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L2926"></span> <span class="line" id="L2927"> <span class="tok-kw">const</span> x1 = ((arg1[<span class="tok-number">0</span>]) \| ((arg1[<span class="tok-number">1</span>]) \| ((arg1[<span class="tok-number">2</span>]) \| ((arg1[<span class="tok-number">3</span>]) \| ((arg1[<span class="tok-number">4</span>]) \| (arg1[<span class="tok-number">5</span>]))))));</span> <span class="line" id="L2928"> out1. = x1;</span> <span class="line" id="L2929">}</span> <span class="line" id="L2930"></span> <span class="line" id="L2931"><span class="tok-comment">/// The function selectznz is a multi-limb conditional select.</span></span> <span class="line" id="L2932"><span class="tok-comment">///</span></span> <span class="line" id="L2933"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L2934"><span class="tok-comment">/// out1 = (if arg1 = 0 then arg2 else arg3)</span></span> <span class="line" id="L2935"><span class="tok-comment">///</span></span> <span class="line" id="L2936"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L2937"><span class="tok-comment">/// arg1: [0x0 ~> 0x1]</span></span> <span class="line" id="L2938"><span class="tok-comment">/// arg2: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L2939"><span class="tok-comment">/// arg3: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L2940"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L2941"><span class="tok-comment">/// out1: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L2942"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">selectznz</span>(out1: [<span class="tok-number">6</span>]<span class="tok-type">u64</span>, arg1: <span class="tok-type">u1</span>, arg2: [<span class="tok-number">6</span>]<span class="tok-type">u64</span>, arg3: [<span class="tok-number">6</span>]<span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L2943"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L2944"></span> <span class="line" id="L2945"> <span class="tok-kw">var</span> x1: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2946"> cmovznzU64(&x1, arg1, (arg2[<span class="tok-number">0</span>]), (arg3[<span class="tok-number">0</span>]));</span> <span class="line" id="L2947"> <span class="tok-kw">var</span> x2: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2948"> cmovznzU64(&x2, arg1, (arg2[<span class="tok-number">1</span>]), (arg3[<span class="tok-number">1</span>]));</span> <span class="line" id="L2949"> <span class="tok-kw">var</span> x3: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2950"> cmovznzU64(&x3, arg1, (arg2[<span class="tok-number">2</span>]), (arg3[<span class="tok-number">2</span>]));</span> <span class="line" id="L2951"> <span class="tok-kw">var</span> x4: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2952"> cmovznzU64(&x4, arg1, (arg2[<span class="tok-number">3</span>]), (arg3[<span class="tok-number">3</span>]));</span> <span class="line" id="L2953"> <span class="tok-kw">var</span> x5: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2954"> cmovznzU64(&x5, arg1, (arg2[<span class="tok-number">4</span>]), (arg3[<span class="tok-number">4</span>]));</span> <span class="line" id="L2955"> <span class="tok-kw">var</span> x6: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2956"> cmovznzU64(&x6, arg1, (arg2[<span class="tok-number">5</span>]), (arg3[<span class="tok-number">5</span>]));</span> <span class="line" id="L2957"> out1[<span class="tok-number">0</span>] = x1;</span> <span class="line" id="L2958"> out1[<span class="tok-number">1</span>] = x2;</span> <span class="line" id="L2959"> out1[<span class="tok-number">2</span>] = x3;</span> <span class="line" id="L2960"> out1[<span class="tok-number">3</span>] = x4;</span> <span class="line" id="L2961"> out1[<span class="tok-number">4</span>] = x5;</span> <span class="line" id="L2962"> out1[<span class="tok-number">5</span>] = x6;</span> <span class="line" id="L2963">}</span> <span class="line" id="L2964"></span> <span class="line" id="L2965"><span class="tok-comment">/// The function toBytes serializes a field element NOT in the Montgomery domain to bytes in little-endian order.</span></span> <span class="line" id="L2966"><span class="tok-comment">///</span></span> <span class="line" id="L2967"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L2968"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L2969"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L2970"><span class="tok-comment">/// out1 = map (λ x, ⌊((eval arg1 mod m) mod 2^(8 (x + 1))) / 2^(8 * x)⌋) [0..47]</span></span> <span class="line" id="L2971"><span class="tok-comment">///</span></span> <span class="line" id="L2972"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L2973"><span class="tok-comment">/// arg1: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L2974"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L2975"><span class="tok-comment">/// out1: [[0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff]]</span></span> <span class="line" id="L2976"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toBytes</span>(out1: [<span class="tok-number">48</span>]<span class="tok-type">u8</span>, arg1: [<span class="tok-number">6</span>]<span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L2977"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L2978"></span> <span class="line" id="L2979"> <span class="tok-kw">const</span> x1 = (arg1[<span class="tok-number">5</span>]);</span> <span class="line" id="L2980"> <span class="tok-kw">const</span> x2 = (arg1[<span class="tok-number">4</span>]);</span> <span class="line" id="L2981"> <span class="tok-kw">const</span> x3 = (arg1[<span class="tok-number">3</span>]);</span> <span class="line" id="L2982"> <span class="tok-kw">const</span> x4 = (arg1[<span class="tok-number">2</span>]);</span> <span class="line" id="L2983"> <span class="tok-kw">const</span> x5 = (arg1[<span class="tok-number">1</span>]);</span> <span class="line" id="L2984"> <span class="tok-kw">const</span> x6 = (arg1[<span class="tok-number">0</span>]);</span> <span class="line" id="L2985"> <span class="tok-kw">const</span> x7 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x6 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L2986"> <span class="tok-kw">const</span> x8 = (x6 >> <span class="tok-number">8</span>);</span> <span class="line" id="L2987"> <span class="tok-kw">const</span> x9 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x8 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L2988"> <span class="tok-kw">const</span> x10 = (x8 >> <span class="tok-number">8</span>);</span> <span class="line" id="L2989"> <span class="tok-kw">const</span> x11 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x10 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L2990"> <span class="tok-kw">const</span> x12 = (x10 >> <span class="tok-number">8</span>);</span> <span class="line" id="L2991"> <span class="tok-kw">const</span> x13 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x12 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L2992"> <span class="tok-kw">const</span> x14 = (x12 >> <span class="tok-number">8</span>);</span> <span class="line" id="L2993"> <span class="tok-kw">const</span> x15 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x14 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L2994"> <span class="tok-kw">const</span> x16 = (x14 >> <span class="tok-number">8</span>);</span> <span class="line" id="L2995"> <span class="tok-kw">const</span> x17 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x16 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L2996"> <span class="tok-kw">const</span> x18 = (x16 >> <span class="tok-number">8</span>);</span> <span class="line" id="L2997"> <span class="tok-kw">const</span> x19 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x18 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L2998"> <span class="tok-kw">const</span> x20 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x18 >> <span class="tok-number">8</span>)));</span> <span class="line" id="L2999"> <span class="tok-kw">const</span> x21 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x5 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L3000"> <span class="tok-kw">const</span> x22 = (x5 >> <span class="tok-number">8</span>);</span> <span class="line" id="L3001"> <span class="tok-kw">const</span> x23 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x22 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L3002"> <span class="tok-kw">const</span> x24 = (x22 >> <span class="tok-number">8</span>);</span> <span class="line" id="L3003"> <span class="tok-kw">const</span> x25 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x24 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L3004"> <span class="tok-kw">const</span> x26 = (x24 >> <span class="tok-number">8</span>);</span> <span class="line" id="L3005"> <span class="tok-kw">const</span> x27 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x26 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L3006"> <span class="tok-kw">const</span> x28 = (x26 >> <span class="tok-number">8</span>);</span> <span class="line" id="L3007"> <span class="tok-kw">const</span> x29 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x28 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L3008"> <span class="tok-kw">const</span> x30 = (x28 >> <span class="tok-number">8</span>);</span> <span class="line" id="L3009"> <span class="tok-kw">const</span> x31 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x30 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L3010"> <span class="tok-kw">const</span> x32 = (x30 >> <span class="tok-number">8</span>);</span> <span class="line" id="L3011"> <span class="tok-kw">const</span> x33 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x32 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L3012"> <span class="tok-kw">const</span> x34 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x32 >> <span class="tok-number">8</span>)));</span> <span class="line" id="L3013"> <span class="tok-kw">const</span> x35 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x4 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L3014"> <span class="tok-kw">const</span> x36 = (x4 >> <span class="tok-number">8</span>);</span> <span class="line" id="L3015"> <span class="tok-kw">const</span> x37 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x36 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L3016"> <span class="tok-kw">const</span> x38 = (x36 >> <span class="tok-number">8</span>);</span> <span class="line" id="L3017"> <span class="tok-kw">const</span> x39 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x38 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L3018"> <span class="tok-kw">const</span> x40 = (x38 >> <span class="tok-number">8</span>);</span> <span class="line" id="L3019"> <span class="tok-kw">const</span> x41 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x40 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L3020"> <span class="tok-kw">const</span> x42 = (x40 >> <span class="tok-number">8</span>);</span> <span class="line" id="L3021"> <span class="tok-kw">const</span> x43 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x42 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L3022"> <span class="tok-kw">const</span> x44 = (x42 >> <span class="tok-number">8</span>);</span> <span class="line" id="L3023"> <span class="tok-kw">const</span> x45 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x44 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L3024"> <span class="tok-kw">const</span> x46 = (x44 >> <span class="tok-number">8</span>);</span> <span class="line" id="L3025"> <span class="tok-kw">const</span> x47 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x46 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L3026"> <span class="tok-kw">const</span> x48 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x46 >> <span class="tok-number">8</span>)));</span> <span class="line" id="L3027"> <span class="tok-kw">const</span> x49 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x3 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L3028"> <span class="tok-kw">const</span> x50 = (x3 >> <span class="tok-number">8</span>);</span> <span class="line" id="L3029"> <span class="tok-kw">const</span> x51 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x50 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L3030"> <span class="tok-kw">const</span> x52 = (x50 >> <span class="tok-number">8</span>);</span> <span class="line" id="L3031"> <span class="tok-kw">const</span> x53 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x52 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L3032"> <span class="tok-kw">const</span> x54 = (x52 >> <span class="tok-number">8</span>);</span> <span class="line" id="L3033"> <span class="tok-kw">const</span> x55 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x54 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L3034"> <span class="tok-kw">const</span> x56 = (x54 >> <span class="tok-number">8</span>);</span> <span class="line" id="L3035"> <span class="tok-kw">const</span> x57 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x56 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L3036"> <span class="tok-kw">const</span> x58 = (x56 >> <span class="tok-number">8</span>);</span> <span class="line" id="L3037"> <span class="tok-kw">const</span> x59 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x58 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L3038"> <span class="tok-kw">const</span> x60 = (x58 >> <span class="tok-number">8</span>);</span> <span class="line" id="L3039"> <span class="tok-kw">const</span> x61 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x60 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L3040"> <span class="tok-kw">const</span> x62 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x60 >> <span class="tok-number">8</span>)));</span> <span class="line" id="L3041"> <span class="tok-kw">const</span> x63 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x2 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L3042"> <span class="tok-kw">const</span> x64 = (x2 >> <span class="tok-number">8</span>);</span> <span class="line" id="L3043"> <span class="tok-kw">const</span> x65 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x64 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L3044"> <span class="tok-kw">const</span> x66 = (x64 >> <span class="tok-number">8</span>);</span> <span class="line" id="L3045"> <span class="tok-kw">const</span> x67 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x66 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L3046"> <span class="tok-kw">const</span> x68 = (x66 >> <span class="tok-number">8</span>);</span> <span class="line" id="L3047"> <span class="tok-kw">const</span> x69 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x68 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L3048"> <span class="tok-kw">const</span> x70 = (x68 >> <span class="tok-number">8</span>);</span> <span class="line" id="L3049"> <span class="tok-kw">const</span> x71 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x70 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L3050"> <span class="tok-kw">const</span> x72 = (x70 >> <span class="tok-number">8</span>);</span> <span class="line" id="L3051"> <span class="tok-kw">const</span> x73 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x72 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L3052"> <span class="tok-kw">const</span> x74 = (x72 >> <span class="tok-number">8</span>);</span> <span class="line" id="L3053"> <span class="tok-kw">const</span> x75 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x74 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L3054"> <span class="tok-kw">const</span> x76 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x74 >> <span class="tok-number">8</span>)));</span> <span class="line" id="L3055"> <span class="tok-kw">const</span> x77 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x1 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L3056"> <span class="tok-kw">const</span> x78 = (x1 >> <span class="tok-number">8</span>);</span> <span class="line" id="L3057"> <span class="tok-kw">const</span> x79 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x78 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L3058"> <span class="tok-kw">const</span> x80 = (x78 >> <span class="tok-number">8</span>);</span> <span class="line" id="L3059"> <span class="tok-kw">const</span> x81 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x80 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L3060"> <span class="tok-kw">const</span> x82 = (x80 >> <span class="tok-number">8</span>);</span> <span class="line" id="L3061"> <span class="tok-kw">const</span> x83 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x82 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L3062"> <span class="tok-kw">const</span> x84 = (x82 >> <span class="tok-number">8</span>);</span> <span class="line" id="L3063"> <span class="tok-kw">const</span> x85 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x84 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L3064"> <span class="tok-kw">const</span> x86 = (x84 >> <span class="tok-number">8</span>);</span> <span class="line" id="L3065"> <span class="tok-kw">const</span> x87 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x86 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L3066"> <span class="tok-kw">const</span> x88 = (x86 >> <span class="tok-number">8</span>);</span> <span class="line" id="L3067"> <span class="tok-kw">const</span> x89 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x88 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L3068"> <span class="tok-kw">const</span> x90 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x88 >> <span class="tok-number">8</span>)));</span> <span class="line" id="L3069"> out1[<span class="tok-number">0</span>] = x7;</span> <span class="line" id="L3070"> out1[<span class="tok-number">1</span>] = x9;</span> <span class="line" id="L3071"> out1[<span class="tok-number">2</span>] = x11;</span> <span class="line" id="L3072"> out1[<span class="tok-number">3</span>] = x13;</span> <span class="line" id="L3073"> out1[<span class="tok-number">4</span>] = x15;</span> <span class="line" id="L3074"> out1[<span class="tok-number">5</span>] = x17;</span> <span class="line" id="L3075"> out1[<span class="tok-number">6</span>] = x19;</span> <span class="line" id="L3076"> out1[<span class="tok-number">7</span>] = x20;</span> <span class="line" id="L3077"> out1[<span class="tok-number">8</span>] = x21;</span> <span class="line" id="L3078"> out1[<span class="tok-number">9</span>] = x23;</span> <span class="line" id="L3079"> out1[<span class="tok-number">10</span>] = x25;</span> <span class="line" id="L3080"> out1[<span class="tok-number">11</span>] = x27;</span> <span class="line" id="L3081"> out1[<span class="tok-number">12</span>] = x29;</span> <span class="line" id="L3082"> out1[<span class="tok-number">13</span>] = x31;</span> <span class="line" id="L3083"> out1[<span class="tok-number">14</span>] = x33;</span> <span class="line" id="L3084"> out1[<span class="tok-number">15</span>] = x34;</span> <span class="line" id="L3085"> out1[<span class="tok-number">16</span>] = x35;</span> <span class="line" id="L3086"> out1[<span class="tok-number">17</span>] = x37;</span> <span class="line" id="L3087"> out1[<span class="tok-number">18</span>] = x39;</span> <span class="line" id="L3088"> out1[<span class="tok-number">19</span>] = x41;</span> <span class="line" id="L3089"> out1[<span class="tok-number">20</span>] = x43;</span> <span class="line" id="L3090"> out1[<span class="tok-number">21</span>] = x45;</span> <span class="line" id="L3091"> out1[<span class="tok-number">22</span>] = x47;</span> <span class="line" id="L3092"> out1[<span class="tok-number">23</span>] = x48;</span> <span class="line" id="L3093"> out1[<span class="tok-number">24</span>] = x49;</span> <span class="line" id="L3094"> out1[<span class="tok-number">25</span>] = x51;</span> <span class="line" id="L3095"> out1[<span class="tok-number">26</span>] = x53;</span> <span class="line" id="L3096"> out1[<span class="tok-number">27</span>] = x55;</span> <span class="line" id="L3097"> out1[<span class="tok-number">28</span>] = x57;</span> <span class="line" id="L3098"> out1[<span class="tok-number">29</span>] = x59;</span> <span class="line" id="L3099"> out1[<span class="tok-number">30</span>] = x61;</span> <span class="line" id="L3100"> out1[<span class="tok-number">31</span>] = x62;</span> <span class="line" id="L3101"> out1[<span class="tok-number">32</span>] = x63;</span> <span class="line" id="L3102"> out1[<span class="tok-number">33</span>] = x65;</span> <span class="line" id="L3103"> out1[<span class="tok-number">34</span>] = x67;</span> <span class="line" id="L3104"> out1[<span class="tok-number">35</span>] = x69;</span> <span class="line" id="L3105"> out1[<span class="tok-number">36</span>] = x71;</span> <span class="line" id="L3106"> out1[<span class="tok-number">37</span>] = x73;</span> <span class="line" id="L3107"> out1[<span class="tok-number">38</span>] = x75;</span> <span class="line" id="L3108"> out1[<span class="tok-number">39</span>] = x76;</span> <span class="line" id="L3109"> out1[<span class="tok-number">40</span>] = x77;</span> <span class="line" id="L3110"> out1[<span class="tok-number">41</span>] = x79;</span> <span class="line" id="L3111"> out1[<span class="tok-number">42</span>] = x81;</span> <span class="line" id="L3112"> out1[<span class="tok-number">43</span>] = x83;</span> <span class="line" id="L3113"> out1[<span class="tok-number">44</span>] = x85;</span> <span class="line" id="L3114"> out1[<span class="tok-number">45</span>] = x87;</span> <span class="line" id="L3115"> out1[<span class="tok-number">46</span>] = x89;</span> <span class="line" id="L3116"> out1[<span class="tok-number">47</span>] = x90;</span> <span class="line" id="L3117">}</span> <span class="line" id="L3118"></span> <span class="line" id="L3119"><span class="tok-comment">/// The function fromBytes deserializes a field element NOT in the Montgomery domain from bytes in little-endian order.</span></span> <span class="line" id="L3120"><span class="tok-comment">///</span></span> <span class="line" id="L3121"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L3122"><span class="tok-comment">/// 0 ≤ bytes_eval arg1 < m</span></span> <span class="line" id="L3123"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L3124"><span class="tok-comment">/// eval out1 mod m = bytes_eval arg1 mod m</span></span> <span class="line" id="L3125"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L3126"><span class="tok-comment">///</span></span> <span class="line" id="L3127"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L3128"><span class="tok-comment">/// arg1: [[0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff]]</span></span> <span class="line" id="L3129"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L3130"><span class="tok-comment">/// out1: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L3131"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromBytes</span>(out1: [<span class="tok-number">6</span>]<span class="tok-type">u64</span>, arg1: [<span class="tok-number">48</span>]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L3132"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L3133"></span> <span class="line" id="L3134"> <span class="tok-kw">const</span> x1 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">47</span>])) << <span class="tok-number">56</span>);</span> <span class="line" id="L3135"> <span class="tok-kw">const</span> x2 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">46</span>])) << <span class="tok-number">48</span>);</span> <span class="line" id="L3136"> <span class="tok-kw">const</span> x3 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">45</span>])) << <span class="tok-number">40</span>);</span> <span class="line" id="L3137"> <span class="tok-kw">const</span> x4 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">44</span>])) << <span class="tok-number">32</span>);</span> <span class="line" id="L3138"> <span class="tok-kw">const</span> x5 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">43</span>])) << <span class="tok-number">24</span>);</span> <span class="line" id="L3139"> <span class="tok-kw">const</span> x6 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">42</span>])) << <span class="tok-number">16</span>);</span> <span class="line" id="L3140"> <span class="tok-kw">const</span> x7 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">41</span>])) << <span class="tok-number">8</span>);</span> <span class="line" id="L3141"> <span class="tok-kw">const</span> x8 = (arg1[<span class="tok-number">40</span>]);</span> <span class="line" id="L3142"> <span class="tok-kw">const</span> x9 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">39</span>])) << <span class="tok-number">56</span>);</span> <span class="line" id="L3143"> <span class="tok-kw">const</span> x10 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">38</span>])) << <span class="tok-number">48</span>);</span> <span class="line" id="L3144"> <span class="tok-kw">const</span> x11 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">37</span>])) << <span class="tok-number">40</span>);</span> <span class="line" id="L3145"> <span class="tok-kw">const</span> x12 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">36</span>])) << <span class="tok-number">32</span>);</span> <span class="line" id="L3146"> <span class="tok-kw">const</span> x13 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">35</span>])) << <span class="tok-number">24</span>);</span> <span class="line" id="L3147"> <span class="tok-kw">const</span> x14 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">34</span>])) << <span class="tok-number">16</span>);</span> <span class="line" id="L3148"> <span class="tok-kw">const</span> x15 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">33</span>])) << <span class="tok-number">8</span>);</span> <span class="line" id="L3149"> <span class="tok-kw">const</span> x16 = (arg1[<span class="tok-number">32</span>]);</span> <span class="line" id="L3150"> <span class="tok-kw">const</span> x17 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">31</span>])) << <span class="tok-number">56</span>);</span> <span class="line" id="L3151"> <span class="tok-kw">const</span> x18 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">30</span>])) << <span class="tok-number">48</span>);</span> <span class="line" id="L3152"> <span class="tok-kw">const</span> x19 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">29</span>])) << <span class="tok-number">40</span>);</span> <span class="line" id="L3153"> <span class="tok-kw">const</span> x20 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">28</span>])) << <span class="tok-number">32</span>);</span> <span class="line" id="L3154"> <span class="tok-kw">const</span> x21 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">27</span>])) << <span class="tok-number">24</span>);</span> <span class="line" id="L3155"> <span class="tok-kw">const</span> x22 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">26</span>])) << <span class="tok-number">16</span>);</span> <span class="line" id="L3156"> <span class="tok-kw">const</span> x23 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">25</span>])) << <span class="tok-number">8</span>);</span> <span class="line" id="L3157"> <span class="tok-kw">const</span> x24 = (arg1[<span class="tok-number">24</span>]);</span> <span class="line" id="L3158"> <span class="tok-kw">const</span> x25 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">23</span>])) << <span class="tok-number">56</span>);</span> <span class="line" id="L3159"> <span class="tok-kw">const</span> x26 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">22</span>])) << <span class="tok-number">48</span>);</span> <span class="line" id="L3160"> <span class="tok-kw">const</span> x27 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">21</span>])) << <span class="tok-number">40</span>);</span> <span class="line" id="L3161"> <span class="tok-kw">const</span> x28 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">20</span>])) << <span class="tok-number">32</span>);</span> <span class="line" id="L3162"> <span class="tok-kw">const</span> x29 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">19</span>])) << <span class="tok-number">24</span>);</span> <span class="line" id="L3163"> <span class="tok-kw">const</span> x30 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">18</span>])) << <span class="tok-number">16</span>);</span> <span class="line" id="L3164"> <span class="tok-kw">const</span> x31 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">17</span>])) << <span class="tok-number">8</span>);</span> <span class="line" id="L3165"> <span class="tok-kw">const</span> x32 = (arg1[<span class="tok-number">16</span>]);</span> <span class="line" id="L3166"> <span class="tok-kw">const</span> x33 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">15</span>])) << <span class="tok-number">56</span>);</span> <span class="line" id="L3167"> <span class="tok-kw">const</span> x34 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">14</span>])) << <span class="tok-number">48</span>);</span> <span class="line" id="L3168"> <span class="tok-kw">const</span> x35 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">13</span>])) << <span class="tok-number">40</span>);</span> <span class="line" id="L3169"> <span class="tok-kw">const</span> x36 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">12</span>])) << <span class="tok-number">32</span>);</span> <span class="line" id="L3170"> <span class="tok-kw">const</span> x37 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">11</span>])) << <span class="tok-number">24</span>);</span> <span class="line" id="L3171"> <span class="tok-kw">const</span> x38 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">10</span>])) << <span class="tok-number">16</span>);</span> <span class="line" id="L3172"> <span class="tok-kw">const</span> x39 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">9</span>])) << <span class="tok-number">8</span>);</span> <span class="line" id="L3173"> <span class="tok-kw">const</span> x40 = (arg1[<span class="tok-number">8</span>]);</span> <span class="line" id="L3174"> <span class="tok-kw">const</span> x41 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">7</span>])) << <span class="tok-number">56</span>);</span> <span class="line" id="L3175"> <span class="tok-kw">const</span> x42 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">6</span>])) << <span class="tok-number">48</span>);</span> <span class="line" id="L3176"> <span class="tok-kw">const</span> x43 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">5</span>])) << <span class="tok-number">40</span>);</span> <span class="line" id="L3177"> <span class="tok-kw">const</span> x44 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">4</span>])) << <span class="tok-number">32</span>);</span> <span class="line" id="L3178"> <span class="tok-kw">const</span> x45 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">3</span>])) << <span class="tok-number">24</span>);</span> <span class="line" id="L3179"> <span class="tok-kw">const</span> x46 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">2</span>])) << <span class="tok-number">16</span>);</span> <span class="line" id="L3180"> <span class="tok-kw">const</span> x47 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">1</span>])) << <span class="tok-number">8</span>);</span> <span class="line" id="L3181"> <span class="tok-kw">const</span> x48 = (arg1[<span class="tok-number">0</span>]);</span> <span class="line" id="L3182"> <span class="tok-kw">const</span> x49 = (x47 + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x48));</span> <span class="line" id="L3183"> <span class="tok-kw">const</span> x50 = (x46 + x49);</span> <span class="line" id="L3184"> <span class="tok-kw">const</span> x51 = (x45 + x50);</span> <span class="line" id="L3185"> <span class="tok-kw">const</span> x52 = (x44 + x51);</span> <span class="line" id="L3186"> <span class="tok-kw">const</span> x53 = (x43 + x52);</span> <span class="line" id="L3187"> <span class="tok-kw">const</span> x54 = (x42 + x53);</span> <span class="line" id="L3188"> <span class="tok-kw">const</span> x55 = (x41 + x54);</span> <span class="line" id="L3189"> <span class="tok-kw">const</span> x56 = (x39 + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x40));</span> <span class="line" id="L3190"> <span class="tok-kw">const</span> x57 = (x38 + x56);</span> <span class="line" id="L3191"> <span class="tok-kw">const</span> x58 = (x37 + x57);</span> <span class="line" id="L3192"> <span class="tok-kw">const</span> x59 = (x36 + x58);</span> <span class="line" id="L3193"> <span class="tok-kw">const</span> x60 = (x35 + x59);</span> <span class="line" id="L3194"> <span class="tok-kw">const</span> x61 = (x34 + x60);</span> <span class="line" id="L3195"> <span class="tok-kw">const</span> x62 = (x33 + x61);</span> <span class="line" id="L3196"> <span class="tok-kw">const</span> x63 = (x31 + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x32));</span> <span class="line" id="L3197"> <span class="tok-kw">const</span> x64 = (x30 + x63);</span> <span class="line" id="L3198"> <span class="tok-kw">const</span> x65 = (x29 + x64);</span> <span class="line" id="L3199"> <span class="tok-kw">const</span> x66 = (x28 + x65);</span> <span class="line" id="L3200"> <span class="tok-kw">const</span> x67 = (x27 + x66);</span> <span class="line" id="L3201"> <span class="tok-kw">const</span> x68 = (x26 + x67);</span> <span class="line" id="L3202"> <span class="tok-kw">const</span> x69 = (x25 + x68);</span> <span class="line" id="L3203"> <span class="tok-kw">const</span> x70 = (x23 + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x24));</span> <span class="line" id="L3204"> <span class="tok-kw">const</span> x71 = (x22 + x70);</span> <span class="line" id="L3205"> <span class="tok-kw">const</span> x72 = (x21 + x71);</span> <span class="line" id="L3206"> <span class="tok-kw">const</span> x73 = (x20 + x72);</span> <span class="line" id="L3207"> <span class="tok-kw">const</span> x74 = (x19 + x73);</span> <span class="line" id="L3208"> <span class="tok-kw">const</span> x75 = (x18 + x74);</span> <span class="line" id="L3209"> <span class="tok-kw">const</span> x76 = (x17 + x75);</span> <span class="line" id="L3210"> <span class="tok-kw">const</span> x77 = (x15 + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x16));</span> <span class="line" id="L3211"> <span class="tok-kw">const</span> x78 = (x14 + x77);</span> <span class="line" id="L3212"> <span class="tok-kw">const</span> x79 = (x13 + x78);</span> <span class="line" id="L3213"> <span class="tok-kw">const</span> x80 = (x12 + x79);</span> <span class="line" id="L3214"> <span class="tok-kw">const</span> x81 = (x11 + x80);</span> <span class="line" id="L3215"> <span class="tok-kw">const</span> x82 = (x10 + x81);</span> <span class="line" id="L3216"> <span class="tok-kw">const</span> x83 = (x9 + x82);</span> <span class="line" id="L3217"> <span class="tok-kw">const</span> x84 = (x7 + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x8));</span> <span class="line" id="L3218"> <span class="tok-kw">const</span> x85 = (x6 + x84);</span> <span class="line" id="L3219"> <span class="tok-kw">const</span> x86 = (x5 + x85);</span> <span class="line" id="L3220"> <span class="tok-kw">const</span> x87 = (x4 + x86);</span> <span class="line" id="L3221"> <span class="tok-kw">const</span> x88 = (x3 + x87);</span> <span class="line" id="L3222"> <span class="tok-kw">const</span> x89 = (x2 + x88);</span> <span class="line" id="L3223"> <span class="tok-kw">const</span> x90 = (x1 + x89);</span> <span class="line" id="L3224"> out1[<span class="tok-number">0</span>] = x55;</span> <span class="line" id="L3225"> out1[<span class="tok-number">1</span>] = x62;</span> <span class="line" id="L3226"> out1[<span class="tok-number">2</span>] = x69;</span> <span class="line" id="L3227"> out1[<span class="tok-number">3</span>] = x76;</span> <span class="line" id="L3228"> out1[<span class="tok-number">4</span>] = x83;</span> <span class="line" id="L3229"> out1[<span class="tok-number">5</span>] = x90;</span> <span class="line" id="L3230">}</span> <span class="line" id="L3231"></span> <span class="line" id="L3232"><span class="tok-comment">/// The function setOne returns the field element one in the Montgomery domain.</span></span> <span class="line" id="L3233"><span class="tok-comment">///</span></span> <span class="line" id="L3234"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L3235"><span class="tok-comment">/// eval (from_montgomery out1) mod m = 1 mod m</span></span> <span class="line" id="L3236"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L3237"><span class="tok-comment">///</span></span> <span class="line" id="L3238"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">setOne</span>(out1: MontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L3239"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L3240"></span> <span class="line" id="L3241"> out1[<span class="tok-number">0</span>] = <span class="tok-number">0x1313e695333ad68d</span>;</span> <span class="line" id="L3242"> out1[<span class="tok-number">1</span>] = <span class="tok-number">0xa7e5f24db74f5885</span>;</span> <span class="line" id="L3243"> out1[<span class="tok-number">2</span>] = <span class="tok-number">0x389cb27e0bc8d220</span>;</span> <span class="line" id="L3244"> out1[<span class="tok-number">3</span>] = <span class="tok-number">0x0</span>;</span> <span class="line" id="L3245"> out1[<span class="tok-number">4</span>] = <span class="tok-number">0x0</span>;</span> <span class="line" id="L3246"> out1[<span class="tok-number">5</span>] = <span class="tok-number">0x0</span>;</span> <span class="line" id="L3247">}</span> <span class="line" id="L3248"></span> <span class="line" id="L3249"><span class="tok-comment">/// The function msat returns the saturated representation of the prime modulus.</span></span> <span class="line" id="L3250"><span class="tok-comment">///</span></span> <span class="line" id="L3251"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L3252"><span class="tok-comment">/// twos_complement_eval out1 = m</span></span> <span class="line" id="L3253"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L3254"><span class="tok-comment">///</span></span> <span class="line" id="L3255"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L3256"><span class="tok-comment">/// out1: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L3257"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">msat</span>(out1: [<span class="tok-number">7</span>]<span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L3258"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L3259"></span> <span class="line" id="L3260"> out1[<span class="tok-number">0</span>] = <span class="tok-number">0xecec196accc52973</span>;</span> <span class="line" id="L3261"> out1[<span class="tok-number">1</span>] = <span class="tok-number">0x581a0db248b0a77a</span>;</span> <span class="line" id="L3262"> out1[<span class="tok-number">2</span>] = <span class="tok-number">0xc7634d81f4372ddf</span>;</span> <span class="line" id="L3263"> out1[<span class="tok-number">3</span>] = <span class="tok-number">0xffffffffffffffff</span>;</span> <span class="line" id="L3264"> out1[<span class="tok-number">4</span>] = <span class="tok-number">0xffffffffffffffff</span>;</span> <span class="line" id="L3265"> out1[<span class="tok-number">5</span>] = <span class="tok-number">0xffffffffffffffff</span>;</span> <span class="line" id="L3266"> out1[<span class="tok-number">6</span>] = <span class="tok-number">0x0</span>;</span> <span class="line" id="L3267">}</span> <span class="line" id="L3268"></span> <span class="line" id="L3269"><span class="tok-comment">/// The function divstep computes a divstep.</span></span> <span class="line" id="L3270"><span class="tok-comment">///</span></span> <span class="line" id="L3271"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L3272"><span class="tok-comment">/// 0 ≤ eval arg4 < m</span></span> <span class="line" id="L3273"><span class="tok-comment">/// 0 ≤ eval arg5 < m</span></span> <span class="line" id="L3274"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L3275"><span class="tok-comment">/// out1 = (if 0 < arg1 ∧ (twos_complement_eval arg3) is odd then 1 - arg1 else 1 + arg1)</span></span> <span class="line" id="L3276"><span class="tok-comment">/// twos_complement_eval out2 = (if 0 < arg1 ∧ (twos_complement_eval arg3) is odd then twos_complement_eval arg3 else twos_complement_eval arg2)</span></span> <span class="line" id="L3277"><span class="tok-comment">/// twos_complement_eval out3 = (if 0 < arg1 ∧ (twos_complement_eval arg3) is odd then ⌊(twos_complement_eval arg3 - twos_complement_eval arg2) / 2⌋ else ⌊(twos_complement_eval arg3 + (twos_complement_eval arg3 mod 2) * twos_complement_eval arg2) / 2⌋)</span></span> <span class="line" id="L3278"><span class="tok-comment">/// eval (from_montgomery out4) mod m = (if 0 < arg1 ∧ (twos_complement_eval arg3) is odd then (2 * eval (from_montgomery arg5)) mod m else (2 * eval (from_montgomery arg4)) mod m)</span></span> <span class="line" id="L3279"><span class="tok-comment">/// eval (from_montgomery out5) mod m = (if 0 < arg1 ∧ (twos_complement_eval arg3) is odd then (eval (from_montgomery arg4) - eval (from_montgomery arg4)) mod m else (eval (from_montgomery arg5) + (twos_complement_eval arg3 mod 2) * eval (from_montgomery arg4)) mod m)</span></span> <span class="line" id="L3280"><span class="tok-comment">/// 0 ≤ eval out5 < m</span></span> <span class="line" id="L3281"><span class="tok-comment">/// 0 ≤ eval out5 < m</span></span> <span class="line" id="L3282"><span class="tok-comment">/// 0 ≤ eval out2 < m</span></span> <span class="line" id="L3283"><span class="tok-comment">/// 0 ≤ eval out3 < m</span></span> <span class="line" id="L3284"><span class="tok-comment">///</span></span> <span class="line" id="L3285"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L3286"><span class="tok-comment">/// arg1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L3287"><span class="tok-comment">/// arg2: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L3288"><span class="tok-comment">/// arg3: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L3289"><span class="tok-comment">/// arg4: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L3290"><span class="tok-comment">/// arg5: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L3291"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L3292"><span class="tok-comment">/// out1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L3293"><span class="tok-comment">/// out2: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L3294"><span class="tok-comment">/// out3: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L3295"><span class="tok-comment">/// out4: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L3296"><span class="tok-comment">/// out5: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L3297"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">divstep</span>(out1: <span class="tok-type">u64</span>, out2: [<span class="tok-number">7</span>]<span class="tok-type">u64</span>, out3: [<span class="tok-number">7</span>]<span class="tok-type">u64</span>, out4: [<span class="tok-number">6</span>]<span class="tok-type">u64</span>, out5: [<span class="tok-number">6</span>]<span class="tok-type">u64</span>, arg1: <span class="tok-type">u64</span>, arg2: [<span class="tok-number">7</span>]<span class="tok-type">u64</span>, arg3: [<span class="tok-number">7</span>]<span class="tok-type">u64</span>, arg4: [<span class="tok-number">6</span>]<span class="tok-type">u64</span>, arg5: [<span class="tok-number">6</span>]<span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L3298"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L3299"></span> <span class="line" id="L3300"> <span class="tok-kw">var</span> x1: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3301"> <span class="tok-kw">var</span> x2: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3302"> addcarryxU64(&x1, &x2, <span class="tok-number">0x0</span>, (~arg1), <span class="tok-number">0x1</span>);</span> <span class="line" id="L3303"> <span class="tok-kw">const</span> x3 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u1</span>, <span class="tok-builtin">@truncate</span>((x1 >> <span class="tok-number">63</span>))) & <span class="tok-builtin">@as</span>(<span class="tok-type">u1</span>, <span class="tok-builtin">@truncate</span>(((arg3[<span class="tok-number">0</span>]) & <span class="tok-number">0x1</span>))));</span> <span class="line" id="L3304"> <span class="tok-kw">var</span> x4: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3305"> <span class="tok-kw">var</span> x5: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3306"> addcarryxU64(&x4, &x5, <span class="tok-number">0x0</span>, (~arg1), <span class="tok-number">0x1</span>);</span> <span class="line" id="L3307"> <span class="tok-kw">var</span> x6: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3308"> cmovznzU64(&x6, x3, arg1, x4);</span> <span class="line" id="L3309"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3310"> cmovznzU64(&x7, x3, (arg2[<span class="tok-number">0</span>]), (arg3[<span class="tok-number">0</span>]));</span> <span class="line" id="L3311"> <span class="tok-kw">var</span> x8: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3312"> cmovznzU64(&x8, x3, (arg2[<span class="tok-number">1</span>]), (arg3[<span class="tok-number">1</span>]));</span> <span class="line" id="L3313"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3314"> cmovznzU64(&x9, x3, (arg2[<span class="tok-number">2</span>]), (arg3[<span class="tok-number">2</span>]));</span> <span class="line" id="L3315"> <span class="tok-kw">var</span> x10: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3316"> cmovznzU64(&x10, x3, (arg2[<span class="tok-number">3</span>]), (arg3[<span class="tok-number">3</span>]));</span> <span class="line" id="L3317"> <span class="tok-kw">var</span> x11: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3318"> cmovznzU64(&x11, x3, (arg2[<span class="tok-number">4</span>]), (arg3[<span class="tok-number">4</span>]));</span> <span class="line" id="L3319"> <span class="tok-kw">var</span> x12: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3320"> cmovznzU64(&x12, x3, (arg2[<span class="tok-number">5</span>]), (arg3[<span class="tok-number">5</span>]));</span> <span class="line" id="L3321"> <span class="tok-kw">var</span> x13: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3322"> cmovznzU64(&x13, x3, (arg2[<span class="tok-number">6</span>]), (arg3[<span class="tok-number">6</span>]));</span> <span class="line" id="L3323"> <span class="tok-kw">var</span> x14: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3324"> <span class="tok-kw">var</span> x15: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3325"> addcarryxU64(&x14, &x15, <span class="tok-number">0x0</span>, <span class="tok-number">0x1</span>, (~(arg2[<span class="tok-number">0</span>])));</span> <span class="line" id="L3326"> <span class="tok-kw">var</span> x16: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3327"> <span class="tok-kw">var</span> x17: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3328"> addcarryxU64(&x16, &x17, x15, <span class="tok-number">0x0</span>, (~(arg2[<span class="tok-number">1</span>])));</span> <span class="line" id="L3329"> <span class="tok-kw">var</span> x18: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3330"> <span class="tok-kw">var</span> x19: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3331"> addcarryxU64(&x18, &x19, x17, <span class="tok-number">0x0</span>, (~(arg2[<span class="tok-number">2</span>])));</span> <span class="line" id="L3332"> <span class="tok-kw">var</span> x20: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3333"> <span class="tok-kw">var</span> x21: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3334"> addcarryxU64(&x20, &x21, x19, <span class="tok-number">0x0</span>, (~(arg2[<span class="tok-number">3</span>])));</span> <span class="line" id="L3335"> <span class="tok-kw">var</span> x22: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3336"> <span class="tok-kw">var</span> x23: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3337"> addcarryxU64(&x22, &x23, x21, <span class="tok-number">0x0</span>, (~(arg2[<span class="tok-number">4</span>])));</span> <span class="line" id="L3338"> <span class="tok-kw">var</span> x24: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3339"> <span class="tok-kw">var</span> x25: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3340"> addcarryxU64(&x24, &x25, x23, <span class="tok-number">0x0</span>, (~(arg2[<span class="tok-number">5</span>])));</span> <span class="line" id="L3341"> <span class="tok-kw">var</span> x26: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3342"> <span class="tok-kw">var</span> x27: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3343"> addcarryxU64(&x26, &x27, x25, <span class="tok-number">0x0</span>, (~(arg2[<span class="tok-number">6</span>])));</span> <span class="line" id="L3344"> <span class="tok-kw">var</span> x28: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3345"> cmovznzU64(&x28, x3, (arg3[<span class="tok-number">0</span>]), x14);</span> <span class="line" id="L3346"> <span class="tok-kw">var</span> x29: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3347"> cmovznzU64(&x29, x3, (arg3[<span class="tok-number">1</span>]), x16);</span> <span class="line" id="L3348"> <span class="tok-kw">var</span> x30: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3349"> cmovznzU64(&x30, x3, (arg3[<span class="tok-number">2</span>]), x18);</span> <span class="line" id="L3350"> <span class="tok-kw">var</span> x31: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3351"> cmovznzU64(&x31, x3, (arg3[<span class="tok-number">3</span>]), x20);</span> <span class="line" id="L3352"> <span class="tok-kw">var</span> x32: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3353"> cmovznzU64(&x32, x3, (arg3[<span class="tok-number">4</span>]), x22);</span> <span class="line" id="L3354"> <span class="tok-kw">var</span> x33: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3355"> cmovznzU64(&x33, x3, (arg3[<span class="tok-number">5</span>]), x24);</span> <span class="line" id="L3356"> <span class="tok-kw">var</span> x34: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3357"> cmovznzU64(&x34, x3, (arg3[<span class="tok-number">6</span>]), x26);</span> <span class="line" id="L3358"> <span class="tok-kw">var</span> x35: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3359"> cmovznzU64(&x35, x3, (arg4[<span class="tok-number">0</span>]), (arg5[<span class="tok-number">0</span>]));</span> <span class="line" id="L3360"> <span class="tok-kw">var</span> x36: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3361"> cmovznzU64(&x36, x3, (arg4[<span class="tok-number">1</span>]), (arg5[<span class="tok-number">1</span>]));</span> <span class="line" id="L3362"> <span class="tok-kw">var</span> x37: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3363"> cmovznzU64(&x37, x3, (arg4[<span class="tok-number">2</span>]), (arg5[<span class="tok-number">2</span>]));</span> <span class="line" id="L3364"> <span class="tok-kw">var</span> x38: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3365"> cmovznzU64(&x38, x3, (arg4[<span class="tok-number">3</span>]), (arg5[<span class="tok-number">3</span>]));</span> <span class="line" id="L3366"> <span class="tok-kw">var</span> x39: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3367"> cmovznzU64(&x39, x3, (arg4[<span class="tok-number">4</span>]), (arg5[<span class="tok-number">4</span>]));</span> <span class="line" id="L3368"> <span class="tok-kw">var</span> x40: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3369"> cmovznzU64(&x40, x3, (arg4[<span class="tok-number">5</span>]), (arg5[<span class="tok-number">5</span>]));</span> <span class="line" id="L3370"> <span class="tok-kw">var</span> x41: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3371"> <span class="tok-kw">var</span> x42: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3372"> addcarryxU64(&x41, &x42, <span class="tok-number">0x0</span>, x35, x35);</span> <span class="line" id="L3373"> <span class="tok-kw">var</span> x43: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3374"> <span class="tok-kw">var</span> x44: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3375"> addcarryxU64(&x43, &x44, x42, x36, x36);</span> <span class="line" id="L3376"> <span class="tok-kw">var</span> x45: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3377"> <span class="tok-kw">var</span> x46: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3378"> addcarryxU64(&x45, &x46, x44, x37, x37);</span> <span class="line" id="L3379"> <span class="tok-kw">var</span> x47: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3380"> <span class="tok-kw">var</span> x48: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3381"> addcarryxU64(&x47, &x48, x46, x38, x38);</span> <span class="line" id="L3382"> <span class="tok-kw">var</span> x49: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3383"> <span class="tok-kw">var</span> x50: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3384"> addcarryxU64(&x49, &x50, x48, x39, x39);</span> <span class="line" id="L3385"> <span class="tok-kw">var</span> x51: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3386"> <span class="tok-kw">var</span> x52: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3387"> addcarryxU64(&x51, &x52, x50, x40, x40);</span> <span class="line" id="L3388"> <span class="tok-kw">var</span> x53: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3389"> <span class="tok-kw">var</span> x54: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3390"> subborrowxU64(&x53, &x54, <span class="tok-number">0x0</span>, x41, <span class="tok-number">0xecec196accc52973</span>);</span> <span class="line" id="L3391"> <span class="tok-kw">var</span> x55: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3392"> <span class="tok-kw">var</span> x56: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3393"> subborrowxU64(&x55, &x56, x54, x43, <span class="tok-number">0x581a0db248b0a77a</span>);</span> <span class="line" id="L3394"> <span class="tok-kw">var</span> x57: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3395"> <span class="tok-kw">var</span> x58: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3396"> subborrowxU64(&x57, &x58, x56, x45, <span class="tok-number">0xc7634d81f4372ddf</span>);</span> <span class="line" id="L3397"> <span class="tok-kw">var</span> x59: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3398"> <span class="tok-kw">var</span> x60: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3399"> subborrowxU64(&x59, &x60, x58, x47, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L3400"> <span class="tok-kw">var</span> x61: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3401"> <span class="tok-kw">var</span> x62: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3402"> subborrowxU64(&x61, &x62, x60, x49, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L3403"> <span class="tok-kw">var</span> x63: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3404"> <span class="tok-kw">var</span> x64: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3405"> subborrowxU64(&x63, &x64, x62, x51, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L3406"> <span class="tok-kw">var</span> x65: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3407"> <span class="tok-kw">var</span> x66: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3408"> subborrowxU64(&x65, &x66, x64, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x52), <span class="tok-number">0x0</span>);</span> <span class="line" id="L3409"> <span class="tok-kw">const</span> x67 = (arg4[<span class="tok-number">5</span>]);</span> <span class="line" id="L3410"> <span class="tok-kw">const</span> x68 = (arg4[<span class="tok-number">4</span>]);</span> <span class="line" id="L3411"> <span class="tok-kw">const</span> x69 = (arg4[<span class="tok-number">3</span>]);</span> <span class="line" id="L3412"> <span class="tok-kw">const</span> x70 = (arg4[<span class="tok-number">2</span>]);</span> <span class="line" id="L3413"> <span class="tok-kw">const</span> x71 = (arg4[<span class="tok-number">1</span>]);</span> <span class="line" id="L3414"> <span class="tok-kw">const</span> x72 = (arg4[<span class="tok-number">0</span>]);</span> <span class="line" id="L3415"> <span class="tok-kw">var</span> x73: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3416"> <span class="tok-kw">var</span> x74: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3417"> subborrowxU64(&x73, &x74, <span class="tok-number">0x0</span>, <span class="tok-number">0x0</span>, x72);</span> <span class="line" id="L3418"> <span class="tok-kw">var</span> x75: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3419"> <span class="tok-kw">var</span> x76: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3420"> subborrowxU64(&x75, &x76, x74, <span class="tok-number">0x0</span>, x71);</span> <span class="line" id="L3421"> <span class="tok-kw">var</span> x77: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3422"> <span class="tok-kw">var</span> x78: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3423"> subborrowxU64(&x77, &x78, x76, <span class="tok-number">0x0</span>, x70);</span> <span class="line" id="L3424"> <span class="tok-kw">var</span> x79: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3425"> <span class="tok-kw">var</span> x80: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3426"> subborrowxU64(&x79, &x80, x78, <span class="tok-number">0x0</span>, x69);</span> <span class="line" id="L3427"> <span class="tok-kw">var</span> x81: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3428"> <span class="tok-kw">var</span> x82: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3429"> subborrowxU64(&x81, &x82, x80, <span class="tok-number">0x0</span>, x68);</span> <span class="line" id="L3430"> <span class="tok-kw">var</span> x83: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3431"> <span class="tok-kw">var</span> x84: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3432"> subborrowxU64(&x83, &x84, x82, <span class="tok-number">0x0</span>, x67);</span> <span class="line" id="L3433"> <span class="tok-kw">var</span> x85: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3434"> cmovznzU64(&x85, x84, <span class="tok-number">0x0</span>, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L3435"> <span class="tok-kw">var</span> x86: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3436"> <span class="tok-kw">var</span> x87: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3437"> addcarryxU64(&x86, &x87, <span class="tok-number">0x0</span>, x73, (x85 & <span class="tok-number">0xecec196accc52973</span>));</span> <span class="line" id="L3438"> <span class="tok-kw">var</span> x88: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3439"> <span class="tok-kw">var</span> x89: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3440"> addcarryxU64(&x88, &x89, x87, x75, (x85 & <span class="tok-number">0x581a0db248b0a77a</span>));</span> <span class="line" id="L3441"> <span class="tok-kw">var</span> x90: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3442"> <span class="tok-kw">var</span> x91: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3443"> addcarryxU64(&x90, &x91, x89, x77, (x85 & <span class="tok-number">0xc7634d81f4372ddf</span>));</span> <span class="line" id="L3444"> <span class="tok-kw">var</span> x92: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3445"> <span class="tok-kw">var</span> x93: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3446"> addcarryxU64(&x92, &x93, x91, x79, x85);</span> <span class="line" id="L3447"> <span class="tok-kw">var</span> x94: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3448"> <span class="tok-kw">var</span> x95: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3449"> addcarryxU64(&x94, &x95, x93, x81, x85);</span> <span class="line" id="L3450"> <span class="tok-kw">var</span> x96: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3451"> <span class="tok-kw">var</span> x97: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3452"> addcarryxU64(&x96, &x97, x95, x83, x85);</span> <span class="line" id="L3453"> <span class="tok-kw">var</span> x98: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3454"> cmovznzU64(&x98, x3, (arg5[<span class="tok-number">0</span>]), x86);</span> <span class="line" id="L3455"> <span class="tok-kw">var</span> x99: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3456"> cmovznzU64(&x99, x3, (arg5[<span class="tok-number">1</span>]), x88);</span> <span class="line" id="L3457"> <span class="tok-kw">var</span> x100: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3458"> cmovznzU64(&x100, x3, (arg5[<span class="tok-number">2</span>]), x90);</span> <span class="line" id="L3459"> <span class="tok-kw">var</span> x101: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3460"> cmovznzU64(&x101, x3, (arg5[<span class="tok-number">3</span>]), x92);</span> <span class="line" id="L3461"> <span class="tok-kw">var</span> x102: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3462"> cmovznzU64(&x102, x3, (arg5[<span class="tok-number">4</span>]), x94);</span> <span class="line" id="L3463"> <span class="tok-kw">var</span> x103: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3464"> cmovznzU64(&x103, x3, (arg5[<span class="tok-number">5</span>]), x96);</span> <span class="line" id="L3465"> <span class="tok-kw">const</span> x104 = <span class="tok-builtin">@as</span>(<span class="tok-type">u1</span>, <span class="tok-builtin">@truncate</span>((x28 & <span class="tok-number">0x1</span>)));</span> <span class="line" id="L3466"> <span class="tok-kw">var</span> x105: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3467"> cmovznzU64(&x105, x104, <span class="tok-number">0x0</span>, x7);</span> <span class="line" id="L3468"> <span class="tok-kw">var</span> x106: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3469"> cmovznzU64(&x106, x104, <span class="tok-number">0x0</span>, x8);</span> <span class="line" id="L3470"> <span class="tok-kw">var</span> x107: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3471"> cmovznzU64(&x107, x104, <span class="tok-number">0x0</span>, x9);</span> <span class="line" id="L3472"> <span class="tok-kw">var</span> x108: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3473"> cmovznzU64(&x108, x104, <span class="tok-number">0x0</span>, x10);</span> <span class="line" id="L3474"> <span class="tok-kw">var</span> x109: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3475"> cmovznzU64(&x109, x104, <span class="tok-number">0x0</span>, x11);</span> <span class="line" id="L3476"> <span class="tok-kw">var</span> x110: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3477"> cmovznzU64(&x110, x104, <span class="tok-number">0x0</span>, x12);</span> <span class="line" id="L3478"> <span class="tok-kw">var</span> x111: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3479"> cmovznzU64(&x111, x104, <span class="tok-number">0x0</span>, x13);</span> <span class="line" id="L3480"> <span class="tok-kw">var</span> x112: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3481"> <span class="tok-kw">var</span> x113: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3482"> addcarryxU64(&x112, &x113, <span class="tok-number">0x0</span>, x28, x105);</span> <span class="line" id="L3483"> <span class="tok-kw">var</span> x114: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3484"> <span class="tok-kw">var</span> x115: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3485"> addcarryxU64(&x114, &x115, x113, x29, x106);</span> <span class="line" id="L3486"> <span class="tok-kw">var</span> x116: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3487"> <span class="tok-kw">var</span> x117: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3488"> addcarryxU64(&x116, &x117, x115, x30, x107);</span> <span class="line" id="L3489"> <span class="tok-kw">var</span> x118: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3490"> <span class="tok-kw">var</span> x119: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3491"> addcarryxU64(&x118, &x119, x117, x31, x108);</span> <span class="line" id="L3492"> <span class="tok-kw">var</span> x120: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3493"> <span class="tok-kw">var</span> x121: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3494"> addcarryxU64(&x120, &x121, x119, x32, x109);</span> <span class="line" id="L3495"> <span class="tok-kw">var</span> x122: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3496"> <span class="tok-kw">var</span> x123: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3497"> addcarryxU64(&x122, &x123, x121, x33, x110);</span> <span class="line" id="L3498"> <span class="tok-kw">var</span> x124: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3499"> <span class="tok-kw">var</span> x125: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3500"> addcarryxU64(&x124, &x125, x123, x34, x111);</span> <span class="line" id="L3501"> <span class="tok-kw">var</span> x126: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3502"> cmovznzU64(&x126, x104, <span class="tok-number">0x0</span>, x35);</span> <span class="line" id="L3503"> <span class="tok-kw">var</span> x127: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3504"> cmovznzU64(&x127, x104, <span class="tok-number">0x0</span>, x36);</span> <span class="line" id="L3505"> <span class="tok-kw">var</span> x128: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3506"> cmovznzU64(&x128, x104, <span class="tok-number">0x0</span>, x37);</span> <span class="line" id="L3507"> <span class="tok-kw">var</span> x129: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3508"> cmovznzU64(&x129, x104, <span class="tok-number">0x0</span>, x38);</span> <span class="line" id="L3509"> <span class="tok-kw">var</span> x130: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3510"> cmovznzU64(&x130, x104, <span class="tok-number">0x0</span>, x39);</span> <span class="line" id="L3511"> <span class="tok-kw">var</span> x131: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3512"> cmovznzU64(&x131, x104, <span class="tok-number">0x0</span>, x40);</span> <span class="line" id="L3513"> <span class="tok-kw">var</span> x132: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3514"> <span class="tok-kw">var</span> x133: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3515"> addcarryxU64(&x132, &x133, <span class="tok-number">0x0</span>, x98, x126);</span> <span class="line" id="L3516"> <span class="tok-kw">var</span> x134: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3517"> <span class="tok-kw">var</span> x135: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3518"> addcarryxU64(&x134, &x135, x133, x99, x127);</span> <span class="line" id="L3519"> <span class="tok-kw">var</span> x136: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3520"> <span class="tok-kw">var</span> x137: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3521"> addcarryxU64(&x136, &x137, x135, x100, x128);</span> <span class="line" id="L3522"> <span class="tok-kw">var</span> x138: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3523"> <span class="tok-kw">var</span> x139: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3524"> addcarryxU64(&x138, &x139, x137, x101, x129);</span> <span class="line" id="L3525"> <span class="tok-kw">var</span> x140: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3526"> <span class="tok-kw">var</span> x141: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3527"> addcarryxU64(&x140, &x141, x139, x102, x130);</span> <span class="line" id="L3528"> <span class="tok-kw">var</span> x142: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3529"> <span class="tok-kw">var</span> x143: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3530"> addcarryxU64(&x142, &x143, x141, x103, x131);</span> <span class="line" id="L3531"> <span class="tok-kw">var</span> x144: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3532"> <span class="tok-kw">var</span> x145: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3533"> subborrowxU64(&x144, &x145, <span class="tok-number">0x0</span>, x132, <span class="tok-number">0xecec196accc52973</span>);</span> <span class="line" id="L3534"> <span class="tok-kw">var</span> x146: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3535"> <span class="tok-kw">var</span> x147: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3536"> subborrowxU64(&x146, &x147, x145, x134, <span class="tok-number">0x581a0db248b0a77a</span>);</span> <span class="line" id="L3537"> <span class="tok-kw">var</span> x148: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3538"> <span class="tok-kw">var</span> x149: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3539"> subborrowxU64(&x148, &x149, x147, x136, <span class="tok-number">0xc7634d81f4372ddf</span>);</span> <span class="line" id="L3540"> <span class="tok-kw">var</span> x150: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3541"> <span class="tok-kw">var</span> x151: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3542"> subborrowxU64(&x150, &x151, x149, x138, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L3543"> <span class="tok-kw">var</span> x152: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3544"> <span class="tok-kw">var</span> x153: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3545"> subborrowxU64(&x152, &x153, x151, x140, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L3546"> <span class="tok-kw">var</span> x154: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3547"> <span class="tok-kw">var</span> x155: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3548"> subborrowxU64(&x154, &x155, x153, x142, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L3549"> <span class="tok-kw">var</span> x156: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3550"> <span class="tok-kw">var</span> x157: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3551"> subborrowxU64(&x156, &x157, x155, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x143), <span class="tok-number">0x0</span>);</span> <span class="line" id="L3552"> <span class="tok-kw">var</span> x158: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3553"> <span class="tok-kw">var</span> x159: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3554"> addcarryxU64(&x158, &x159, <span class="tok-number">0x0</span>, x6, <span class="tok-number">0x1</span>);</span> <span class="line" id="L3555"> <span class="tok-kw">const</span> x160 = ((x112 >> <span class="tok-number">1</span>) \| ((x114 << <span class="tok-number">63</span>) & <span class="tok-number">0xffffffffffffffff</span>));</span> <span class="line" id="L3556"> <span class="tok-kw">const</span> x161 = ((x114 >> <span class="tok-number">1</span>) \| ((x116 << <span class="tok-number">63</span>) & <span class="tok-number">0xffffffffffffffff</span>));</span> <span class="line" id="L3557"> <span class="tok-kw">const</span> x162 = ((x116 >> <span class="tok-number">1</span>) \| ((x118 << <span class="tok-number">63</span>) & <span class="tok-number">0xffffffffffffffff</span>));</span> <span class="line" id="L3558"> <span class="tok-kw">const</span> x163 = ((x118 >> <span class="tok-number">1</span>) \| ((x120 << <span class="tok-number">63</span>) & <span class="tok-number">0xffffffffffffffff</span>));</span> <span class="line" id="L3559"> <span class="tok-kw">const</span> x164 = ((x120 >> <span class="tok-number">1</span>) \| ((x122 << <span class="tok-number">63</span>) & <span class="tok-number">0xffffffffffffffff</span>));</span> <span class="line" id="L3560"> <span class="tok-kw">const</span> x165 = ((x122 >> <span class="tok-number">1</span>) \| ((x124 << <span class="tok-number">63</span>) & <span class="tok-number">0xffffffffffffffff</span>));</span> <span class="line" id="L3561"> <span class="tok-kw">const</span> x166 = ((x124 & <span class="tok-number">0x8000000000000000</span>) \| (x124 >> <span class="tok-number">1</span>));</span> <span class="line" id="L3562"> <span class="tok-kw">var</span> x167: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3563"> cmovznzU64(&x167, x66, x53, x41);</span> <span class="line" id="L3564"> <span class="tok-kw">var</span> x168: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3565"> cmovznzU64(&x168, x66, x55, x43);</span> <span class="line" id="L3566"> <span class="tok-kw">var</span> x169: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3567"> cmovznzU64(&x169, x66, x57, x45);</span> <span class="line" id="L3568"> <span class="tok-kw">var</span> x170: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3569"> cmovznzU64(&x170, x66, x59, x47);</span> <span class="line" id="L3570"> <span class="tok-kw">var</span> x171: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3571"> cmovznzU64(&x171, x66, x61, x49);</span> <span class="line" id="L3572"> <span class="tok-kw">var</span> x172: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3573"> cmovznzU64(&x172, x66, x63, x51);</span> <span class="line" id="L3574"> <span class="tok-kw">var</span> x173: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3575"> cmovznzU64(&x173, x157, x144, x132);</span> <span class="line" id="L3576"> <span class="tok-kw">var</span> x174: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3577"> cmovznzU64(&x174, x157, x146, x134);</span> <span class="line" id="L3578"> <span class="tok-kw">var</span> x175: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3579"> cmovznzU64(&x175, x157, x148, x136);</span> <span class="line" id="L3580"> <span class="tok-kw">var</span> x176: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3581"> cmovznzU64(&x176, x157, x150, x138);</span> <span class="line" id="L3582"> <span class="tok-kw">var</span> x177: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3583"> cmovznzU64(&x177, x157, x152, x140);</span> <span class="line" id="L3584"> <span class="tok-kw">var</span> x178: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3585"> cmovznzU64(&x178, x157, x154, x142);</span> <span class="line" id="L3586"> out1. = x158;</span> <span class="line" id="L3587"> out2[<span class="tok-number">0</span>] = x7;</span> <span class="line" id="L3588"> out2[<span class="tok-number">1</span>] = x8;</span> <span class="line" id="L3589"> out2[<span class="tok-number">2</span>] = x9;</span> <span class="line" id="L3590"> out2[<span class="tok-number">3</span>] = x10;</span> <span class="line" id="L3591"> out2[<span class="tok-number">4</span>] = x11;</span> <span class="line" id="L3592"> out2[<span class="tok-number">5</span>] = x12;</span> <span class="line" id="L3593"> out2[<span class="tok-number">6</span>] = x13;</span> <span class="line" id="L3594"> out3[<span class="tok-number">0</span>] = x160;</span> <span class="line" id="L3595"> out3[<span class="tok-number">1</span>] = x161;</span> <span class="line" id="L3596"> out3[<span class="tok-number">2</span>] = x162;</span> <span class="line" id="L3597"> out3[<span class="tok-number">3</span>] = x163;</span> <span class="line" id="L3598"> out3[<span class="tok-number">4</span>] = x164;</span> <span class="line" id="L3599"> out3[<span class="tok-number">5</span>] = x165;</span> <span class="line" id="L3600"> out3[<span class="tok-number">6</span>] = x166;</span> <span class="line" id="L3601"> out4[<span class="tok-number">0</span>] = x167;</span> <span class="line" id="L3602"> out4[<span class="tok-number">1</span>] = x168;</span> <span class="line" id="L3603"> out4[<span class="tok-number">2</span>] = x169;</span> <span class="line" id="L3604"> out4[<span class="tok-number">3</span>] = x170;</span> <span class="line" id="L3605"> out4[<span class="tok-number">4</span>] = x171;</span> <span class="line" id="L3606"> out4[<span class="tok-number">5</span>] = x172;</span> <span class="line" id="L3607"> out5[<span class="tok-number">0</span>] = x173;</span> <span class="line" id="L3608"> out5[<span class="tok-number">1</span>] = x174;</span> <span class="line" id="L3609"> out5[<span class="tok-number">2</span>] = x175;</span> <span class="line" id="L3610"> out5[<span class="tok-number">3</span>] = x176;</span> <span class="line" id="L3611"> out5[<span class="tok-number">4</span>] = x177;</span> <span class="line" id="L3612"> out5[<span class="tok-number">5</span>] = x178;</span> <span class="line" id="L3613">}</span> <span class="line" id="L3614"></span> <span class="line" id="L3615"><span class="tok-comment">/// The function divstepPrecomp returns the precomputed value for Bernstein-Yang-inversion (in montgomery form).</span></span> <span class="line" id="L3616"><span class="tok-comment">///</span></span> <span class="line" id="L3617"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L3618"><span class="tok-comment">/// eval (from_montgomery out1) = ⌊(m - 1) / 2⌋^(if ⌊log2 m⌋ + 1 < 46 then ⌊(49 * (⌊log2 m⌋ + 1) + 80) / 17⌋ else ⌊(49 * (⌊log2 m⌋ + 1) + 57) / 17⌋)</span></span> <span class="line" id="L3619"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L3620"><span class="tok-comment">///</span></span> <span class="line" id="L3621"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L3622"><span class="tok-comment">/// out1: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L3623"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">divstepPrecomp</span>(out1: *[<span class="tok-number">6</span>]<span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L3624"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L3625"></span> <span class="line" id="L3626"> out1[<span class="tok-number">0</span>] = <span class="tok-number">0x49589ae0e6045b6a</span>;</span> <span class="line" id="L3627"> out1[<span class="tok-number">1</span>] = <span class="tok-number">0x3c9a5352870040ed</span>;</span> <span class="line" id="L3628"> out1[<span class="tok-number">2</span>] = <span class="tok-number">0xdacb097e977dc242</span>;</span> <span class="line" id="L3629"> out1[<span class="tok-number">3</span>] = <span class="tok-number">0xb5ab30a6d1ecbe36</span>;</span> <span class="line" id="L3630"> out1[<span class="tok-number">4</span>] = <span class="tok-number">0x97d7a1081f959973</span>;</span> <span class="line" id="L3631"> out1[<span class="tok-number">5</span>] = <span class="tok-number">0x2ba012f8d27192bc</span>;</span> <span class="line" id="L3632">}</span> <span class="line" id="L3633"></span> </code></pre></body> </html>
repos/yazap/docs/src/std/crypto/pcurves	repos/yazap/docs/src/std/crypto/pcurves/p384/p384_64.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/pcurves/p384/p384_64.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-comment">// Autogenerated: 'src/ExtractionOCaml/word_by_word_montgomery' --lang Zig --internal-static --public-function-case camelCase --private-function-case camelCase --public-type-case UpperCamelCase --private-type-case UpperCamelCase --no-prefix-fiat --package-name p384 '' 64 '2^384 - 2^128 - 2^96 + 2^32 - 1' mul square add sub opp from_montgomery to_montgomery nonzero selectznz to_bytes from_bytes one msat divstep divstep_precomp</span> </span> <span class="line" id="L2"><span class="tok-comment">// curve description (via package name): p384</span> </span> <span class="line" id="L3"><span class="tok-comment">// machine_wordsize = 64 (from "64")</span> </span> <span class="line" id="L4"><span class="tok-comment">// requested operations: mul, square, add, sub, opp, from_montgomery, to_montgomery, nonzero, selectznz, to_bytes, from_bytes, one, msat, divstep, divstep_precomp</span> </span> <span class="line" id="L5"><span class="tok-comment">// m = 0xfffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffeffffffff0000000000000000ffffffff (from "2^384 - 2^128 - 2^96 + 2^32 - 1")</span> </span> <span class="line" id="L6"><span class="tok-comment">//</span> </span> <span class="line" id="L7"><span class="tok-comment">// NOTE: In addition to the bounds specified above each function, all</span> </span> <span class="line" id="L8"><span class="tok-comment">// functions synthesized for this Montgomery arithmetic require the</span> </span> <span class="line" id="L9"><span class="tok-comment">// input to be strictly less than the prime modulus (m), and also</span> </span> <span class="line" id="L10"><span class="tok-comment">// require the input to be in the unique saturated representation.</span> </span> <span class="line" id="L11"><span class="tok-comment">// All functions also ensure that these two properties are true of</span> </span> <span class="line" id="L12"><span class="tok-comment">// return values.</span> </span> <span class="line" id="L13"><span class="tok-comment">//</span> </span> <span class="line" id="L14"><span class="tok-comment">// Computed values:</span> </span> <span class="line" id="L15"><span class="tok-comment">// eval z = z[0] + (z[1] << 64) + (z[2] << 128) + (z[3] << 192) + (z[4] << 256) + (z[5] << 0x140)</span> </span> <span class="line" id="L16"><span class="tok-comment">// bytes_eval z = z[0] + (z[1] << 8) + (z[2] << 16) + (z[3] << 24) + (z[4] << 32) + (z[5] << 40) + (z[6] << 48) + (z[7] << 56) + (z[8] << 64) + (z[9] << 72) + (z[10] << 80) + (z[11] << 88) + (z[12] << 96) + (z[13] << 104) + (z[14] << 112) + (z[15] << 120) + (z[16] << 128) + (z[17] << 136) + (z[18] << 144) + (z[19] << 152) + (z[20] << 160) + (z[21] << 168) + (z[22] << 176) + (z[23] << 184) + (z[24] << 192) + (z[25] << 200) + (z[26] << 208) + (z[27] << 216) + (z[28] << 224) + (z[29] << 232) + (z[30] << 240) + (z[31] << 248) + (z[32] << 256) + (z[33] << 0x108) + (z[34] << 0x110) + (z[35] << 0x118) + (z[36] << 0x120) + (z[37] << 0x128) + (z[38] << 0x130) + (z[39] << 0x138) + (z[40] << 0x140) + (z[41] << 0x148) + (z[42] << 0x150) + (z[43] << 0x158) + (z[44] << 0x160) + (z[45] << 0x168) + (z[46] << 0x170) + (z[47] << 0x178)</span> </span> <span class="line" id="L17"><span class="tok-comment">// twos_complement_eval z = let x1 := z[0] + (z[1] << 64) + (z[2] << 128) + (z[3] << 192) + (z[4] << 256) + (z[5] << 0x140) in</span> </span> <span class="line" id="L18"><span class="tok-comment">// if x1 & (2^384-1) < 2^383 then x1 & (2^384-1) else (x1 & (2^384-1)) - 2^384</span> </span> <span class="line" id="L19"></span> <span class="line" id="L20"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L21"><span class="tok-kw">const</span> mode = <span class="tok-builtin">@import</span>(<span class="tok-str">"builtin"</span>).mode; <span class="tok-comment">// Checked arithmetic is disabled in non-debug modes to avoid side channels</span> </span> <span class="line" id="L22"></span> <span class="line" id="L23"><span class="tok-comment">// The type MontgomeryDomainFieldElement is a field element in the Montgomery domain.</span> </span> <span class="line" id="L24"><span class="tok-comment">// Bounds: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span> </span> <span class="line" id="L25"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> MontgomeryDomainFieldElement = [<span class="tok-number">6</span>]<span class="tok-type">u64</span>;</span> <span class="line" id="L26"></span> <span class="line" id="L27"><span class="tok-comment">// The type NonMontgomeryDomainFieldElement is a field element NOT in the Montgomery domain.</span> </span> <span class="line" id="L28"><span class="tok-comment">// Bounds: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span> </span> <span class="line" id="L29"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> NonMontgomeryDomainFieldElement = [<span class="tok-number">6</span>]<span class="tok-type">u64</span>;</span> <span class="line" id="L30"></span> <span class="line" id="L31"><span class="tok-comment">/// The function addcarryxU64 is an addition with carry.</span></span> <span class="line" id="L32"><span class="tok-comment">///</span></span> <span class="line" id="L33"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L34"><span class="tok-comment">/// out1 = (arg1 + arg2 + arg3) mod 2^64</span></span> <span class="line" id="L35"><span class="tok-comment">/// out2 = ⌊(arg1 + arg2 + arg3) / 2^64⌋</span></span> <span class="line" id="L36"><span class="tok-comment">///</span></span> <span class="line" id="L37"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L38"><span class="tok-comment">/// arg1: [0x0 ~> 0x1]</span></span> <span class="line" id="L39"><span class="tok-comment">/// arg2: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L40"><span class="tok-comment">/// arg3: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L41"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L42"><span class="tok-comment">/// out1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L43"><span class="tok-comment">/// out2: [0x0 ~> 0x1]</span></span> <span class="line" id="L44"><span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">addcarryxU64</span>(out1: <span class="tok-type">u64</span>, out2: <span class="tok-type">u1</span>, arg1: <span class="tok-type">u1</span>, arg2: <span class="tok-type">u64</span>, arg3: <span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L45"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L46"></span> <span class="line" id="L47"> <span class="tok-kw">const</span> ov1 = <span class="tok-builtin">@addWithOverflow</span>(arg2, arg3);</span> <span class="line" id="L48"> <span class="tok-kw">const</span> ov2 = <span class="tok-builtin">@addWithOverflow</span>(ov1[<span class="tok-number">0</span>], arg1);</span> <span class="line" id="L49"> out1.* = ov2[<span class="tok-number">0</span>];</span> <span class="line" id="L50"> out2.* = ov1[<span class="tok-number">1</span>] \| ov2[<span class="tok-number">1</span>];</span> <span class="line" id="L51">}</span> <span class="line" id="L52"></span> <span class="line" id="L53"><span class="tok-comment">/// The function subborrowxU64 is a subtraction with borrow.</span></span> <span class="line" id="L54"><span class="tok-comment">///</span></span> <span class="line" id="L55"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L56"><span class="tok-comment">/// out1 = (-arg1 + arg2 + -arg3) mod 2^64</span></span> <span class="line" id="L57"><span class="tok-comment">/// out2 = -⌊(-arg1 + arg2 + -arg3) / 2^64⌋</span></span> <span class="line" id="L58"><span class="tok-comment">///</span></span> <span class="line" id="L59"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L60"><span class="tok-comment">/// arg1: [0x0 ~> 0x1]</span></span> <span class="line" id="L61"><span class="tok-comment">/// arg2: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L62"><span class="tok-comment">/// arg3: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L63"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L64"><span class="tok-comment">/// out1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L65"><span class="tok-comment">/// out2: [0x0 ~> 0x1]</span></span> <span class="line" id="L66"><span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">subborrowxU64</span>(out1: <span class="tok-type">u64</span>, out2: <span class="tok-type">u1</span>, arg1: <span class="tok-type">u1</span>, arg2: <span class="tok-type">u64</span>, arg3: <span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L67"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L68"></span> <span class="line" id="L69"> <span class="tok-kw">const</span> ov1 = <span class="tok-builtin">@subWithOverflow</span>(arg2, arg3);</span> <span class="line" id="L70"> <span class="tok-kw">const</span> ov2 = <span class="tok-builtin">@subWithOverflow</span>(ov1[<span class="tok-number">0</span>], arg1);</span> <span class="line" id="L71"> out1.* = ov2[<span class="tok-number">0</span>];</span> <span class="line" id="L72"> out2.* = ov1[<span class="tok-number">1</span>] \| ov2[<span class="tok-number">1</span>];</span> <span class="line" id="L73">}</span> <span class="line" id="L74"></span> <span class="line" id="L75"><span class="tok-comment">/// The function mulxU64 is a multiplication, returning the full double-width result.</span></span> <span class="line" id="L76"><span class="tok-comment">///</span></span> <span class="line" id="L77"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L78"><span class="tok-comment">/// out1 = (arg1 * arg2) mod 2^64</span></span> <span class="line" id="L79"><span class="tok-comment">/// out2 = ⌊arg1 * arg2 / 2^64⌋</span></span> <span class="line" id="L80"><span class="tok-comment">///</span></span> <span class="line" id="L81"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L82"><span class="tok-comment">/// arg1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L83"><span class="tok-comment">/// arg2: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L84"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L85"><span class="tok-comment">/// out1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L86"><span class="tok-comment">/// out2: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L87"><span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">mulxU64</span>(out1: <span class="tok-type">u64</span>, out2: <span class="tok-type">u64</span>, arg1: <span class="tok-type">u64</span>, arg2: <span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L88"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L89"></span> <span class="line" id="L90"> <span class="tok-kw">const</span> x = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, arg1) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, arg2);</span> <span class="line" id="L91"> out1.* = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(x));</span> <span class="line" id="L92"> out2.* = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(x >> <span class="tok-number">64</span>));</span> <span class="line" id="L93">}</span> <span class="line" id="L94"></span> <span class="line" id="L95"><span class="tok-comment">/// The function cmovznzU64 is a single-word conditional move.</span></span> <span class="line" id="L96"><span class="tok-comment">///</span></span> <span class="line" id="L97"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L98"><span class="tok-comment">/// out1 = (if arg1 = 0 then arg2 else arg3)</span></span> <span class="line" id="L99"><span class="tok-comment">///</span></span> <span class="line" id="L100"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L101"><span class="tok-comment">/// arg1: [0x0 ~> 0x1]</span></span> <span class="line" id="L102"><span class="tok-comment">/// arg2: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L103"><span class="tok-comment">/// arg3: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L104"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L105"><span class="tok-comment">/// out1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L106"><span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">cmovznzU64</span>(out1: <span class="tok-type">u64</span>, arg1: <span class="tok-type">u1</span>, arg2: <span class="tok-type">u64</span>, arg3: <span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L107"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L108"></span> <span class="line" id="L109"> <span class="tok-kw">const</span> mask = <span class="tok-number">0</span> -% <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, arg1);</span> <span class="line" id="L110"> out1. = (mask & arg3) \| ((~mask) & arg2);</span> <span class="line" id="L111">}</span> <span class="line" id="L112"></span> <span class="line" id="L113"><span class="tok-comment">/// The function mul multiplies two field elements in the Montgomery domain.</span></span> <span class="line" id="L114"><span class="tok-comment">///</span></span> <span class="line" id="L115"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L116"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L117"><span class="tok-comment">/// 0 ≤ eval arg2 < m</span></span> <span class="line" id="L118"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L119"><span class="tok-comment">/// eval (from_montgomery out1) mod m = (eval (from_montgomery arg1) * eval (from_montgomery arg2)) mod m</span></span> <span class="line" id="L120"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L121"><span class="tok-comment">///</span></span> <span class="line" id="L122"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">mul</span>(out1: MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldElement, arg2: MontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L123"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L124"></span> <span class="line" id="L125"> <span class="tok-kw">const</span> x1 = (arg1[<span class="tok-number">1</span>]);</span> <span class="line" id="L126"> <span class="tok-kw">const</span> x2 = (arg1[<span class="tok-number">2</span>]);</span> <span class="line" id="L127"> <span class="tok-kw">const</span> x3 = (arg1[<span class="tok-number">3</span>]);</span> <span class="line" id="L128"> <span class="tok-kw">const</span> x4 = (arg1[<span class="tok-number">4</span>]);</span> <span class="line" id="L129"> <span class="tok-kw">const</span> x5 = (arg1[<span class="tok-number">5</span>]);</span> <span class="line" id="L130"> <span class="tok-kw">const</span> x6 = (arg1[<span class="tok-number">0</span>]);</span> <span class="line" id="L131"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L132"> <span class="tok-kw">var</span> x8: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L133"> mulxU64(&x7, &x8, x6, (arg2[<span class="tok-number">5</span>]));</span> <span class="line" id="L134"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L135"> <span class="tok-kw">var</span> x10: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L136"> mulxU64(&x9, &x10, x6, (arg2[<span class="tok-number">4</span>]));</span> <span class="line" id="L137"> <span class="tok-kw">var</span> x11: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L138"> <span class="tok-kw">var</span> x12: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L139"> mulxU64(&x11, &x12, x6, (arg2[<span class="tok-number">3</span>]));</span> <span class="line" id="L140"> <span class="tok-kw">var</span> x13: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L141"> <span class="tok-kw">var</span> x14: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L142"> mulxU64(&x13, &x14, x6, (arg2[<span class="tok-number">2</span>]));</span> <span class="line" id="L143"> <span class="tok-kw">var</span> x15: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L144"> <span class="tok-kw">var</span> x16: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L145"> mulxU64(&x15, &x16, x6, (arg2[<span class="tok-number">1</span>]));</span> <span class="line" id="L146"> <span class="tok-kw">var</span> x17: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L147"> <span class="tok-kw">var</span> x18: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L148"> mulxU64(&x17, &x18, x6, (arg2[<span class="tok-number">0</span>]));</span> <span class="line" id="L149"> <span class="tok-kw">var</span> x19: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L150"> <span class="tok-kw">var</span> x20: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L151"> addcarryxU64(&x19, &x20, <span class="tok-number">0x0</span>, x18, x15);</span> <span class="line" id="L152"> <span class="tok-kw">var</span> x21: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L153"> <span class="tok-kw">var</span> x22: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L154"> addcarryxU64(&x21, &x22, x20, x16, x13);</span> <span class="line" id="L155"> <span class="tok-kw">var</span> x23: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L156"> <span class="tok-kw">var</span> x24: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L157"> addcarryxU64(&x23, &x24, x22, x14, x11);</span> <span class="line" id="L158"> <span class="tok-kw">var</span> x25: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L159"> <span class="tok-kw">var</span> x26: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L160"> addcarryxU64(&x25, &x26, x24, x12, x9);</span> <span class="line" id="L161"> <span class="tok-kw">var</span> x27: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L162"> <span class="tok-kw">var</span> x28: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L163"> addcarryxU64(&x27, &x28, x26, x10, x7);</span> <span class="line" id="L164"> <span class="tok-kw">const</span> x29 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x28) + x8);</span> <span class="line" id="L165"> <span class="tok-kw">var</span> x30: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L166"> <span class="tok-kw">var</span> x31: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L167"> mulxU64(&x30, &x31, x17, <span class="tok-number">0x100000001</span>);</span> <span class="line" id="L168"> <span class="tok-kw">var</span> x32: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L169"> <span class="tok-kw">var</span> x33: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L170"> mulxU64(&x32, &x33, x30, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L171"> <span class="tok-kw">var</span> x34: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L172"> <span class="tok-kw">var</span> x35: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L173"> mulxU64(&x34, &x35, x30, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L174"> <span class="tok-kw">var</span> x36: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L175"> <span class="tok-kw">var</span> x37: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L176"> mulxU64(&x36, &x37, x30, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L177"> <span class="tok-kw">var</span> x38: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L178"> <span class="tok-kw">var</span> x39: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L179"> mulxU64(&x38, &x39, x30, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L180"> <span class="tok-kw">var</span> x40: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L181"> <span class="tok-kw">var</span> x41: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L182"> mulxU64(&x40, &x41, x30, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L183"> <span class="tok-kw">var</span> x42: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L184"> <span class="tok-kw">var</span> x43: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L185"> mulxU64(&x42, &x43, x30, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L186"> <span class="tok-kw">var</span> x44: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L187"> <span class="tok-kw">var</span> x45: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L188"> addcarryxU64(&x44, &x45, <span class="tok-number">0x0</span>, x43, x40);</span> <span class="line" id="L189"> <span class="tok-kw">var</span> x46: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L190"> <span class="tok-kw">var</span> x47: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L191"> addcarryxU64(&x46, &x47, x45, x41, x38);</span> <span class="line" id="L192"> <span class="tok-kw">var</span> x48: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L193"> <span class="tok-kw">var</span> x49: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L194"> addcarryxU64(&x48, &x49, x47, x39, x36);</span> <span class="line" id="L195"> <span class="tok-kw">var</span> x50: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L196"> <span class="tok-kw">var</span> x51: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L197"> addcarryxU64(&x50, &x51, x49, x37, x34);</span> <span class="line" id="L198"> <span class="tok-kw">var</span> x52: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L199"> <span class="tok-kw">var</span> x53: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L200"> addcarryxU64(&x52, &x53, x51, x35, x32);</span> <span class="line" id="L201"> <span class="tok-kw">const</span> x54 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x53) + x33);</span> <span class="line" id="L202"> <span class="tok-kw">var</span> x55: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L203"> <span class="tok-kw">var</span> x56: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L204"> addcarryxU64(&x55, &x56, <span class="tok-number">0x0</span>, x17, x42);</span> <span class="line" id="L205"> <span class="tok-kw">var</span> x57: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L206"> <span class="tok-kw">var</span> x58: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L207"> addcarryxU64(&x57, &x58, x56, x19, x44);</span> <span class="line" id="L208"> <span class="tok-kw">var</span> x59: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L209"> <span class="tok-kw">var</span> x60: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L210"> addcarryxU64(&x59, &x60, x58, x21, x46);</span> <span class="line" id="L211"> <span class="tok-kw">var</span> x61: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L212"> <span class="tok-kw">var</span> x62: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L213"> addcarryxU64(&x61, &x62, x60, x23, x48);</span> <span class="line" id="L214"> <span class="tok-kw">var</span> x63: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L215"> <span class="tok-kw">var</span> x64: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L216"> addcarryxU64(&x63, &x64, x62, x25, x50);</span> <span class="line" id="L217"> <span class="tok-kw">var</span> x65: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L218"> <span class="tok-kw">var</span> x66: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L219"> addcarryxU64(&x65, &x66, x64, x27, x52);</span> <span class="line" id="L220"> <span class="tok-kw">var</span> x67: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L221"> <span class="tok-kw">var</span> x68: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L222"> addcarryxU64(&x67, &x68, x66, x29, x54);</span> <span class="line" id="L223"> <span class="tok-kw">var</span> x69: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L224"> <span class="tok-kw">var</span> x70: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L225"> mulxU64(&x69, &x70, x1, (arg2[<span class="tok-number">5</span>]));</span> <span class="line" id="L226"> <span class="tok-kw">var</span> x71: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L227"> <span class="tok-kw">var</span> x72: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L228"> mulxU64(&x71, &x72, x1, (arg2[<span class="tok-number">4</span>]));</span> <span class="line" id="L229"> <span class="tok-kw">var</span> x73: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L230"> <span class="tok-kw">var</span> x74: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L231"> mulxU64(&x73, &x74, x1, (arg2[<span class="tok-number">3</span>]));</span> <span class="line" id="L232"> <span class="tok-kw">var</span> x75: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L233"> <span class="tok-kw">var</span> x76: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L234"> mulxU64(&x75, &x76, x1, (arg2[<span class="tok-number">2</span>]));</span> <span class="line" id="L235"> <span class="tok-kw">var</span> x77: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L236"> <span class="tok-kw">var</span> x78: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L237"> mulxU64(&x77, &x78, x1, (arg2[<span class="tok-number">1</span>]));</span> <span class="line" id="L238"> <span class="tok-kw">var</span> x79: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L239"> <span class="tok-kw">var</span> x80: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L240"> mulxU64(&x79, &x80, x1, (arg2[<span class="tok-number">0</span>]));</span> <span class="line" id="L241"> <span class="tok-kw">var</span> x81: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L242"> <span class="tok-kw">var</span> x82: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L243"> addcarryxU64(&x81, &x82, <span class="tok-number">0x0</span>, x80, x77);</span> <span class="line" id="L244"> <span class="tok-kw">var</span> x83: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L245"> <span class="tok-kw">var</span> x84: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L246"> addcarryxU64(&x83, &x84, x82, x78, x75);</span> <span class="line" id="L247"> <span class="tok-kw">var</span> x85: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L248"> <span class="tok-kw">var</span> x86: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L249"> addcarryxU64(&x85, &x86, x84, x76, x73);</span> <span class="line" id="L250"> <span class="tok-kw">var</span> x87: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L251"> <span class="tok-kw">var</span> x88: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L252"> addcarryxU64(&x87, &x88, x86, x74, x71);</span> <span class="line" id="L253"> <span class="tok-kw">var</span> x89: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L254"> <span class="tok-kw">var</span> x90: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L255"> addcarryxU64(&x89, &x90, x88, x72, x69);</span> <span class="line" id="L256"> <span class="tok-kw">const</span> x91 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x90) + x70);</span> <span class="line" id="L257"> <span class="tok-kw">var</span> x92: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L258"> <span class="tok-kw">var</span> x93: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L259"> addcarryxU64(&x92, &x93, <span class="tok-number">0x0</span>, x57, x79);</span> <span class="line" id="L260"> <span class="tok-kw">var</span> x94: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L261"> <span class="tok-kw">var</span> x95: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L262"> addcarryxU64(&x94, &x95, x93, x59, x81);</span> <span class="line" id="L263"> <span class="tok-kw">var</span> x96: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L264"> <span class="tok-kw">var</span> x97: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L265"> addcarryxU64(&x96, &x97, x95, x61, x83);</span> <span class="line" id="L266"> <span class="tok-kw">var</span> x98: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L267"> <span class="tok-kw">var</span> x99: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L268"> addcarryxU64(&x98, &x99, x97, x63, x85);</span> <span class="line" id="L269"> <span class="tok-kw">var</span> x100: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L270"> <span class="tok-kw">var</span> x101: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L271"> addcarryxU64(&x100, &x101, x99, x65, x87);</span> <span class="line" id="L272"> <span class="tok-kw">var</span> x102: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L273"> <span class="tok-kw">var</span> x103: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L274"> addcarryxU64(&x102, &x103, x101, x67, x89);</span> <span class="line" id="L275"> <span class="tok-kw">var</span> x104: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L276"> <span class="tok-kw">var</span> x105: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L277"> addcarryxU64(&x104, &x105, x103, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x68), x91);</span> <span class="line" id="L278"> <span class="tok-kw">var</span> x106: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L279"> <span class="tok-kw">var</span> x107: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L280"> mulxU64(&x106, &x107, x92, <span class="tok-number">0x100000001</span>);</span> <span class="line" id="L281"> <span class="tok-kw">var</span> x108: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L282"> <span class="tok-kw">var</span> x109: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L283"> mulxU64(&x108, &x109, x106, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L284"> <span class="tok-kw">var</span> x110: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L285"> <span class="tok-kw">var</span> x111: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L286"> mulxU64(&x110, &x111, x106, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L287"> <span class="tok-kw">var</span> x112: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L288"> <span class="tok-kw">var</span> x113: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L289"> mulxU64(&x112, &x113, x106, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L290"> <span class="tok-kw">var</span> x114: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L291"> <span class="tok-kw">var</span> x115: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L292"> mulxU64(&x114, &x115, x106, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L293"> <span class="tok-kw">var</span> x116: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L294"> <span class="tok-kw">var</span> x117: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L295"> mulxU64(&x116, &x117, x106, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L296"> <span class="tok-kw">var</span> x118: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L297"> <span class="tok-kw">var</span> x119: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L298"> mulxU64(&x118, &x119, x106, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L299"> <span class="tok-kw">var</span> x120: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L300"> <span class="tok-kw">var</span> x121: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L301"> addcarryxU64(&x120, &x121, <span class="tok-number">0x0</span>, x119, x116);</span> <span class="line" id="L302"> <span class="tok-kw">var</span> x122: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L303"> <span class="tok-kw">var</span> x123: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L304"> addcarryxU64(&x122, &x123, x121, x117, x114);</span> <span class="line" id="L305"> <span class="tok-kw">var</span> x124: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L306"> <span class="tok-kw">var</span> x125: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L307"> addcarryxU64(&x124, &x125, x123, x115, x112);</span> <span class="line" id="L308"> <span class="tok-kw">var</span> x126: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L309"> <span class="tok-kw">var</span> x127: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L310"> addcarryxU64(&x126, &x127, x125, x113, x110);</span> <span class="line" id="L311"> <span class="tok-kw">var</span> x128: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L312"> <span class="tok-kw">var</span> x129: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L313"> addcarryxU64(&x128, &x129, x127, x111, x108);</span> <span class="line" id="L314"> <span class="tok-kw">const</span> x130 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x129) + x109);</span> <span class="line" id="L315"> <span class="tok-kw">var</span> x131: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L316"> <span class="tok-kw">var</span> x132: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L317"> addcarryxU64(&x131, &x132, <span class="tok-number">0x0</span>, x92, x118);</span> <span class="line" id="L318"> <span class="tok-kw">var</span> x133: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L319"> <span class="tok-kw">var</span> x134: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L320"> addcarryxU64(&x133, &x134, x132, x94, x120);</span> <span class="line" id="L321"> <span class="tok-kw">var</span> x135: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L322"> <span class="tok-kw">var</span> x136: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L323"> addcarryxU64(&x135, &x136, x134, x96, x122);</span> <span class="line" id="L324"> <span class="tok-kw">var</span> x137: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L325"> <span class="tok-kw">var</span> x138: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L326"> addcarryxU64(&x137, &x138, x136, x98, x124);</span> <span class="line" id="L327"> <span class="tok-kw">var</span> x139: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L328"> <span class="tok-kw">var</span> x140: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L329"> addcarryxU64(&x139, &x140, x138, x100, x126);</span> <span class="line" id="L330"> <span class="tok-kw">var</span> x141: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L331"> <span class="tok-kw">var</span> x142: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L332"> addcarryxU64(&x141, &x142, x140, x102, x128);</span> <span class="line" id="L333"> <span class="tok-kw">var</span> x143: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L334"> <span class="tok-kw">var</span> x144: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L335"> addcarryxU64(&x143, &x144, x142, x104, x130);</span> <span class="line" id="L336"> <span class="tok-kw">const</span> x145 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x144) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x105));</span> <span class="line" id="L337"> <span class="tok-kw">var</span> x146: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L338"> <span class="tok-kw">var</span> x147: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L339"> mulxU64(&x146, &x147, x2, (arg2[<span class="tok-number">5</span>]));</span> <span class="line" id="L340"> <span class="tok-kw">var</span> x148: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L341"> <span class="tok-kw">var</span> x149: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L342"> mulxU64(&x148, &x149, x2, (arg2[<span class="tok-number">4</span>]));</span> <span class="line" id="L343"> <span class="tok-kw">var</span> x150: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L344"> <span class="tok-kw">var</span> x151: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L345"> mulxU64(&x150, &x151, x2, (arg2[<span class="tok-number">3</span>]));</span> <span class="line" id="L346"> <span class="tok-kw">var</span> x152: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L347"> <span class="tok-kw">var</span> x153: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L348"> mulxU64(&x152, &x153, x2, (arg2[<span class="tok-number">2</span>]));</span> <span class="line" id="L349"> <span class="tok-kw">var</span> x154: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L350"> <span class="tok-kw">var</span> x155: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L351"> mulxU64(&x154, &x155, x2, (arg2[<span class="tok-number">1</span>]));</span> <span class="line" id="L352"> <span class="tok-kw">var</span> x156: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L353"> <span class="tok-kw">var</span> x157: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L354"> mulxU64(&x156, &x157, x2, (arg2[<span class="tok-number">0</span>]));</span> <span class="line" id="L355"> <span class="tok-kw">var</span> x158: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L356"> <span class="tok-kw">var</span> x159: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L357"> addcarryxU64(&x158, &x159, <span class="tok-number">0x0</span>, x157, x154);</span> <span class="line" id="L358"> <span class="tok-kw">var</span> x160: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L359"> <span class="tok-kw">var</span> x161: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L360"> addcarryxU64(&x160, &x161, x159, x155, x152);</span> <span class="line" id="L361"> <span class="tok-kw">var</span> x162: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L362"> <span class="tok-kw">var</span> x163: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L363"> addcarryxU64(&x162, &x163, x161, x153, x150);</span> <span class="line" id="L364"> <span class="tok-kw">var</span> x164: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L365"> <span class="tok-kw">var</span> x165: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L366"> addcarryxU64(&x164, &x165, x163, x151, x148);</span> <span class="line" id="L367"> <span class="tok-kw">var</span> x166: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L368"> <span class="tok-kw">var</span> x167: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L369"> addcarryxU64(&x166, &x167, x165, x149, x146);</span> <span class="line" id="L370"> <span class="tok-kw">const</span> x168 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x167) + x147);</span> <span class="line" id="L371"> <span class="tok-kw">var</span> x169: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L372"> <span class="tok-kw">var</span> x170: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L373"> addcarryxU64(&x169, &x170, <span class="tok-number">0x0</span>, x133, x156);</span> <span class="line" id="L374"> <span class="tok-kw">var</span> x171: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L375"> <span class="tok-kw">var</span> x172: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L376"> addcarryxU64(&x171, &x172, x170, x135, x158);</span> <span class="line" id="L377"> <span class="tok-kw">var</span> x173: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L378"> <span class="tok-kw">var</span> x174: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L379"> addcarryxU64(&x173, &x174, x172, x137, x160);</span> <span class="line" id="L380"> <span class="tok-kw">var</span> x175: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L381"> <span class="tok-kw">var</span> x176: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L382"> addcarryxU64(&x175, &x176, x174, x139, x162);</span> <span class="line" id="L383"> <span class="tok-kw">var</span> x177: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L384"> <span class="tok-kw">var</span> x178: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L385"> addcarryxU64(&x177, &x178, x176, x141, x164);</span> <span class="line" id="L386"> <span class="tok-kw">var</span> x179: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L387"> <span class="tok-kw">var</span> x180: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L388"> addcarryxU64(&x179, &x180, x178, x143, x166);</span> <span class="line" id="L389"> <span class="tok-kw">var</span> x181: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L390"> <span class="tok-kw">var</span> x182: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L391"> addcarryxU64(&x181, &x182, x180, x145, x168);</span> <span class="line" id="L392"> <span class="tok-kw">var</span> x183: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L393"> <span class="tok-kw">var</span> x184: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L394"> mulxU64(&x183, &x184, x169, <span class="tok-number">0x100000001</span>);</span> <span class="line" id="L395"> <span class="tok-kw">var</span> x185: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L396"> <span class="tok-kw">var</span> x186: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L397"> mulxU64(&x185, &x186, x183, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L398"> <span class="tok-kw">var</span> x187: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L399"> <span class="tok-kw">var</span> x188: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L400"> mulxU64(&x187, &x188, x183, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L401"> <span class="tok-kw">var</span> x189: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L402"> <span class="tok-kw">var</span> x190: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L403"> mulxU64(&x189, &x190, x183, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L404"> <span class="tok-kw">var</span> x191: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L405"> <span class="tok-kw">var</span> x192: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L406"> mulxU64(&x191, &x192, x183, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L407"> <span class="tok-kw">var</span> x193: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L408"> <span class="tok-kw">var</span> x194: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L409"> mulxU64(&x193, &x194, x183, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L410"> <span class="tok-kw">var</span> x195: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L411"> <span class="tok-kw">var</span> x196: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L412"> mulxU64(&x195, &x196, x183, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L413"> <span class="tok-kw">var</span> x197: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L414"> <span class="tok-kw">var</span> x198: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L415"> addcarryxU64(&x197, &x198, <span class="tok-number">0x0</span>, x196, x193);</span> <span class="line" id="L416"> <span class="tok-kw">var</span> x199: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L417"> <span class="tok-kw">var</span> x200: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L418"> addcarryxU64(&x199, &x200, x198, x194, x191);</span> <span class="line" id="L419"> <span class="tok-kw">var</span> x201: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L420"> <span class="tok-kw">var</span> x202: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L421"> addcarryxU64(&x201, &x202, x200, x192, x189);</span> <span class="line" id="L422"> <span class="tok-kw">var</span> x203: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L423"> <span class="tok-kw">var</span> x204: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L424"> addcarryxU64(&x203, &x204, x202, x190, x187);</span> <span class="line" id="L425"> <span class="tok-kw">var</span> x205: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L426"> <span class="tok-kw">var</span> x206: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L427"> addcarryxU64(&x205, &x206, x204, x188, x185);</span> <span class="line" id="L428"> <span class="tok-kw">const</span> x207 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x206) + x186);</span> <span class="line" id="L429"> <span class="tok-kw">var</span> x208: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L430"> <span class="tok-kw">var</span> x209: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L431"> addcarryxU64(&x208, &x209, <span class="tok-number">0x0</span>, x169, x195);</span> <span class="line" id="L432"> <span class="tok-kw">var</span> x210: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L433"> <span class="tok-kw">var</span> x211: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L434"> addcarryxU64(&x210, &x211, x209, x171, x197);</span> <span class="line" id="L435"> <span class="tok-kw">var</span> x212: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L436"> <span class="tok-kw">var</span> x213: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L437"> addcarryxU64(&x212, &x213, x211, x173, x199);</span> <span class="line" id="L438"> <span class="tok-kw">var</span> x214: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L439"> <span class="tok-kw">var</span> x215: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L440"> addcarryxU64(&x214, &x215, x213, x175, x201);</span> <span class="line" id="L441"> <span class="tok-kw">var</span> x216: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L442"> <span class="tok-kw">var</span> x217: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L443"> addcarryxU64(&x216, &x217, x215, x177, x203);</span> <span class="line" id="L444"> <span class="tok-kw">var</span> x218: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L445"> <span class="tok-kw">var</span> x219: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L446"> addcarryxU64(&x218, &x219, x217, x179, x205);</span> <span class="line" id="L447"> <span class="tok-kw">var</span> x220: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L448"> <span class="tok-kw">var</span> x221: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L449"> addcarryxU64(&x220, &x221, x219, x181, x207);</span> <span class="line" id="L450"> <span class="tok-kw">const</span> x222 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x221) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x182));</span> <span class="line" id="L451"> <span class="tok-kw">var</span> x223: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L452"> <span class="tok-kw">var</span> x224: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L453"> mulxU64(&x223, &x224, x3, (arg2[<span class="tok-number">5</span>]));</span> <span class="line" id="L454"> <span class="tok-kw">var</span> x225: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L455"> <span class="tok-kw">var</span> x226: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L456"> mulxU64(&x225, &x226, x3, (arg2[<span class="tok-number">4</span>]));</span> <span class="line" id="L457"> <span class="tok-kw">var</span> x227: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L458"> <span class="tok-kw">var</span> x228: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L459"> mulxU64(&x227, &x228, x3, (arg2[<span class="tok-number">3</span>]));</span> <span class="line" id="L460"> <span class="tok-kw">var</span> x229: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L461"> <span class="tok-kw">var</span> x230: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L462"> mulxU64(&x229, &x230, x3, (arg2[<span class="tok-number">2</span>]));</span> <span class="line" id="L463"> <span class="tok-kw">var</span> x231: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L464"> <span class="tok-kw">var</span> x232: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L465"> mulxU64(&x231, &x232, x3, (arg2[<span class="tok-number">1</span>]));</span> <span class="line" id="L466"> <span class="tok-kw">var</span> x233: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L467"> <span class="tok-kw">var</span> x234: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L468"> mulxU64(&x233, &x234, x3, (arg2[<span class="tok-number">0</span>]));</span> <span class="line" id="L469"> <span class="tok-kw">var</span> x235: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L470"> <span class="tok-kw">var</span> x236: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L471"> addcarryxU64(&x235, &x236, <span class="tok-number">0x0</span>, x234, x231);</span> <span class="line" id="L472"> <span class="tok-kw">var</span> x237: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L473"> <span class="tok-kw">var</span> x238: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L474"> addcarryxU64(&x237, &x238, x236, x232, x229);</span> <span class="line" id="L475"> <span class="tok-kw">var</span> x239: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L476"> <span class="tok-kw">var</span> x240: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L477"> addcarryxU64(&x239, &x240, x238, x230, x227);</span> <span class="line" id="L478"> <span class="tok-kw">var</span> x241: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L479"> <span class="tok-kw">var</span> x242: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L480"> addcarryxU64(&x241, &x242, x240, x228, x225);</span> <span class="line" id="L481"> <span class="tok-kw">var</span> x243: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L482"> <span class="tok-kw">var</span> x244: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L483"> addcarryxU64(&x243, &x244, x242, x226, x223);</span> <span class="line" id="L484"> <span class="tok-kw">const</span> x245 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x244) + x224);</span> <span class="line" id="L485"> <span class="tok-kw">var</span> x246: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L486"> <span class="tok-kw">var</span> x247: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L487"> addcarryxU64(&x246, &x247, <span class="tok-number">0x0</span>, x210, x233);</span> <span class="line" id="L488"> <span class="tok-kw">var</span> x248: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L489"> <span class="tok-kw">var</span> x249: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L490"> addcarryxU64(&x248, &x249, x247, x212, x235);</span> <span class="line" id="L491"> <span class="tok-kw">var</span> x250: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L492"> <span class="tok-kw">var</span> x251: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L493"> addcarryxU64(&x250, &x251, x249, x214, x237);</span> <span class="line" id="L494"> <span class="tok-kw">var</span> x252: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L495"> <span class="tok-kw">var</span> x253: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L496"> addcarryxU64(&x252, &x253, x251, x216, x239);</span> <span class="line" id="L497"> <span class="tok-kw">var</span> x254: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L498"> <span class="tok-kw">var</span> x255: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L499"> addcarryxU64(&x254, &x255, x253, x218, x241);</span> <span class="line" id="L500"> <span class="tok-kw">var</span> x256: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L501"> <span class="tok-kw">var</span> x257: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L502"> addcarryxU64(&x256, &x257, x255, x220, x243);</span> <span class="line" id="L503"> <span class="tok-kw">var</span> x258: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L504"> <span class="tok-kw">var</span> x259: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L505"> addcarryxU64(&x258, &x259, x257, x222, x245);</span> <span class="line" id="L506"> <span class="tok-kw">var</span> x260: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L507"> <span class="tok-kw">var</span> x261: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L508"> mulxU64(&x260, &x261, x246, <span class="tok-number">0x100000001</span>);</span> <span class="line" id="L509"> <span class="tok-kw">var</span> x262: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L510"> <span class="tok-kw">var</span> x263: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L511"> mulxU64(&x262, &x263, x260, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L512"> <span class="tok-kw">var</span> x264: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L513"> <span class="tok-kw">var</span> x265: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L514"> mulxU64(&x264, &x265, x260, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L515"> <span class="tok-kw">var</span> x266: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L516"> <span class="tok-kw">var</span> x267: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L517"> mulxU64(&x266, &x267, x260, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L518"> <span class="tok-kw">var</span> x268: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L519"> <span class="tok-kw">var</span> x269: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L520"> mulxU64(&x268, &x269, x260, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L521"> <span class="tok-kw">var</span> x270: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L522"> <span class="tok-kw">var</span> x271: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L523"> mulxU64(&x270, &x271, x260, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L524"> <span class="tok-kw">var</span> x272: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L525"> <span class="tok-kw">var</span> x273: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L526"> mulxU64(&x272, &x273, x260, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L527"> <span class="tok-kw">var</span> x274: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L528"> <span class="tok-kw">var</span> x275: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L529"> addcarryxU64(&x274, &x275, <span class="tok-number">0x0</span>, x273, x270);</span> <span class="line" id="L530"> <span class="tok-kw">var</span> x276: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L531"> <span class="tok-kw">var</span> x277: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L532"> addcarryxU64(&x276, &x277, x275, x271, x268);</span> <span class="line" id="L533"> <span class="tok-kw">var</span> x278: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L534"> <span class="tok-kw">var</span> x279: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L535"> addcarryxU64(&x278, &x279, x277, x269, x266);</span> <span class="line" id="L536"> <span class="tok-kw">var</span> x280: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L537"> <span class="tok-kw">var</span> x281: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L538"> addcarryxU64(&x280, &x281, x279, x267, x264);</span> <span class="line" id="L539"> <span class="tok-kw">var</span> x282: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L540"> <span class="tok-kw">var</span> x283: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L541"> addcarryxU64(&x282, &x283, x281, x265, x262);</span> <span class="line" id="L542"> <span class="tok-kw">const</span> x284 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x283) + x263);</span> <span class="line" id="L543"> <span class="tok-kw">var</span> x285: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L544"> <span class="tok-kw">var</span> x286: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L545"> addcarryxU64(&x285, &x286, <span class="tok-number">0x0</span>, x246, x272);</span> <span class="line" id="L546"> <span class="tok-kw">var</span> x287: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L547"> <span class="tok-kw">var</span> x288: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L548"> addcarryxU64(&x287, &x288, x286, x248, x274);</span> <span class="line" id="L549"> <span class="tok-kw">var</span> x289: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L550"> <span class="tok-kw">var</span> x290: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L551"> addcarryxU64(&x289, &x290, x288, x250, x276);</span> <span class="line" id="L552"> <span class="tok-kw">var</span> x291: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L553"> <span class="tok-kw">var</span> x292: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L554"> addcarryxU64(&x291, &x292, x290, x252, x278);</span> <span class="line" id="L555"> <span class="tok-kw">var</span> x293: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L556"> <span class="tok-kw">var</span> x294: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L557"> addcarryxU64(&x293, &x294, x292, x254, x280);</span> <span class="line" id="L558"> <span class="tok-kw">var</span> x295: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L559"> <span class="tok-kw">var</span> x296: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L560"> addcarryxU64(&x295, &x296, x294, x256, x282);</span> <span class="line" id="L561"> <span class="tok-kw">var</span> x297: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L562"> <span class="tok-kw">var</span> x298: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L563"> addcarryxU64(&x297, &x298, x296, x258, x284);</span> <span class="line" id="L564"> <span class="tok-kw">const</span> x299 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x298) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x259));</span> <span class="line" id="L565"> <span class="tok-kw">var</span> x300: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L566"> <span class="tok-kw">var</span> x301: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L567"> mulxU64(&x300, &x301, x4, (arg2[<span class="tok-number">5</span>]));</span> <span class="line" id="L568"> <span class="tok-kw">var</span> x302: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L569"> <span class="tok-kw">var</span> x303: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L570"> mulxU64(&x302, &x303, x4, (arg2[<span class="tok-number">4</span>]));</span> <span class="line" id="L571"> <span class="tok-kw">var</span> x304: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L572"> <span class="tok-kw">var</span> x305: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L573"> mulxU64(&x304, &x305, x4, (arg2[<span class="tok-number">3</span>]));</span> <span class="line" id="L574"> <span class="tok-kw">var</span> x306: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L575"> <span class="tok-kw">var</span> x307: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L576"> mulxU64(&x306, &x307, x4, (arg2[<span class="tok-number">2</span>]));</span> <span class="line" id="L577"> <span class="tok-kw">var</span> x308: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L578"> <span class="tok-kw">var</span> x309: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L579"> mulxU64(&x308, &x309, x4, (arg2[<span class="tok-number">1</span>]));</span> <span class="line" id="L580"> <span class="tok-kw">var</span> x310: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L581"> <span class="tok-kw">var</span> x311: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L582"> mulxU64(&x310, &x311, x4, (arg2[<span class="tok-number">0</span>]));</span> <span class="line" id="L583"> <span class="tok-kw">var</span> x312: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L584"> <span class="tok-kw">var</span> x313: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L585"> addcarryxU64(&x312, &x313, <span class="tok-number">0x0</span>, x311, x308);</span> <span class="line" id="L586"> <span class="tok-kw">var</span> x314: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L587"> <span class="tok-kw">var</span> x315: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L588"> addcarryxU64(&x314, &x315, x313, x309, x306);</span> <span class="line" id="L589"> <span class="tok-kw">var</span> x316: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L590"> <span class="tok-kw">var</span> x317: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L591"> addcarryxU64(&x316, &x317, x315, x307, x304);</span> <span class="line" id="L592"> <span class="tok-kw">var</span> x318: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L593"> <span class="tok-kw">var</span> x319: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L594"> addcarryxU64(&x318, &x319, x317, x305, x302);</span> <span class="line" id="L595"> <span class="tok-kw">var</span> x320: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L596"> <span class="tok-kw">var</span> x321: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L597"> addcarryxU64(&x320, &x321, x319, x303, x300);</span> <span class="line" id="L598"> <span class="tok-kw">const</span> x322 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x321) + x301);</span> <span class="line" id="L599"> <span class="tok-kw">var</span> x323: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L600"> <span class="tok-kw">var</span> x324: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L601"> addcarryxU64(&x323, &x324, <span class="tok-number">0x0</span>, x287, x310);</span> <span class="line" id="L602"> <span class="tok-kw">var</span> x325: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L603"> <span class="tok-kw">var</span> x326: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L604"> addcarryxU64(&x325, &x326, x324, x289, x312);</span> <span class="line" id="L605"> <span class="tok-kw">var</span> x327: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L606"> <span class="tok-kw">var</span> x328: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L607"> addcarryxU64(&x327, &x328, x326, x291, x314);</span> <span class="line" id="L608"> <span class="tok-kw">var</span> x329: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L609"> <span class="tok-kw">var</span> x330: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L610"> addcarryxU64(&x329, &x330, x328, x293, x316);</span> <span class="line" id="L611"> <span class="tok-kw">var</span> x331: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L612"> <span class="tok-kw">var</span> x332: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L613"> addcarryxU64(&x331, &x332, x330, x295, x318);</span> <span class="line" id="L614"> <span class="tok-kw">var</span> x333: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L615"> <span class="tok-kw">var</span> x334: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L616"> addcarryxU64(&x333, &x334, x332, x297, x320);</span> <span class="line" id="L617"> <span class="tok-kw">var</span> x335: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L618"> <span class="tok-kw">var</span> x336: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L619"> addcarryxU64(&x335, &x336, x334, x299, x322);</span> <span class="line" id="L620"> <span class="tok-kw">var</span> x337: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L621"> <span class="tok-kw">var</span> x338: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L622"> mulxU64(&x337, &x338, x323, <span class="tok-number">0x100000001</span>);</span> <span class="line" id="L623"> <span class="tok-kw">var</span> x339: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L624"> <span class="tok-kw">var</span> x340: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L625"> mulxU64(&x339, &x340, x337, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L626"> <span class="tok-kw">var</span> x341: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L627"> <span class="tok-kw">var</span> x342: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L628"> mulxU64(&x341, &x342, x337, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L629"> <span class="tok-kw">var</span> x343: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L630"> <span class="tok-kw">var</span> x344: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L631"> mulxU64(&x343, &x344, x337, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L632"> <span class="tok-kw">var</span> x345: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L633"> <span class="tok-kw">var</span> x346: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L634"> mulxU64(&x345, &x346, x337, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L635"> <span class="tok-kw">var</span> x347: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L636"> <span class="tok-kw">var</span> x348: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L637"> mulxU64(&x347, &x348, x337, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L638"> <span class="tok-kw">var</span> x349: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L639"> <span class="tok-kw">var</span> x350: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L640"> mulxU64(&x349, &x350, x337, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L641"> <span class="tok-kw">var</span> x351: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L642"> <span class="tok-kw">var</span> x352: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L643"> addcarryxU64(&x351, &x352, <span class="tok-number">0x0</span>, x350, x347);</span> <span class="line" id="L644"> <span class="tok-kw">var</span> x353: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L645"> <span class="tok-kw">var</span> x354: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L646"> addcarryxU64(&x353, &x354, x352, x348, x345);</span> <span class="line" id="L647"> <span class="tok-kw">var</span> x355: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L648"> <span class="tok-kw">var</span> x356: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L649"> addcarryxU64(&x355, &x356, x354, x346, x343);</span> <span class="line" id="L650"> <span class="tok-kw">var</span> x357: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L651"> <span class="tok-kw">var</span> x358: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L652"> addcarryxU64(&x357, &x358, x356, x344, x341);</span> <span class="line" id="L653"> <span class="tok-kw">var</span> x359: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L654"> <span class="tok-kw">var</span> x360: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L655"> addcarryxU64(&x359, &x360, x358, x342, x339);</span> <span class="line" id="L656"> <span class="tok-kw">const</span> x361 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x360) + x340);</span> <span class="line" id="L657"> <span class="tok-kw">var</span> x362: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L658"> <span class="tok-kw">var</span> x363: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L659"> addcarryxU64(&x362, &x363, <span class="tok-number">0x0</span>, x323, x349);</span> <span class="line" id="L660"> <span class="tok-kw">var</span> x364: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L661"> <span class="tok-kw">var</span> x365: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L662"> addcarryxU64(&x364, &x365, x363, x325, x351);</span> <span class="line" id="L663"> <span class="tok-kw">var</span> x366: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L664"> <span class="tok-kw">var</span> x367: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L665"> addcarryxU64(&x366, &x367, x365, x327, x353);</span> <span class="line" id="L666"> <span class="tok-kw">var</span> x368: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L667"> <span class="tok-kw">var</span> x369: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L668"> addcarryxU64(&x368, &x369, x367, x329, x355);</span> <span class="line" id="L669"> <span class="tok-kw">var</span> x370: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L670"> <span class="tok-kw">var</span> x371: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L671"> addcarryxU64(&x370, &x371, x369, x331, x357);</span> <span class="line" id="L672"> <span class="tok-kw">var</span> x372: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L673"> <span class="tok-kw">var</span> x373: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L674"> addcarryxU64(&x372, &x373, x371, x333, x359);</span> <span class="line" id="L675"> <span class="tok-kw">var</span> x374: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L676"> <span class="tok-kw">var</span> x375: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L677"> addcarryxU64(&x374, &x375, x373, x335, x361);</span> <span class="line" id="L678"> <span class="tok-kw">const</span> x376 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x375) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x336));</span> <span class="line" id="L679"> <span class="tok-kw">var</span> x377: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L680"> <span class="tok-kw">var</span> x378: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L681"> mulxU64(&x377, &x378, x5, (arg2[<span class="tok-number">5</span>]));</span> <span class="line" id="L682"> <span class="tok-kw">var</span> x379: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L683"> <span class="tok-kw">var</span> x380: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L684"> mulxU64(&x379, &x380, x5, (arg2[<span class="tok-number">4</span>]));</span> <span class="line" id="L685"> <span class="tok-kw">var</span> x381: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L686"> <span class="tok-kw">var</span> x382: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L687"> mulxU64(&x381, &x382, x5, (arg2[<span class="tok-number">3</span>]));</span> <span class="line" id="L688"> <span class="tok-kw">var</span> x383: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L689"> <span class="tok-kw">var</span> x384: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L690"> mulxU64(&x383, &x384, x5, (arg2[<span class="tok-number">2</span>]));</span> <span class="line" id="L691"> <span class="tok-kw">var</span> x385: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L692"> <span class="tok-kw">var</span> x386: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L693"> mulxU64(&x385, &x386, x5, (arg2[<span class="tok-number">1</span>]));</span> <span class="line" id="L694"> <span class="tok-kw">var</span> x387: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L695"> <span class="tok-kw">var</span> x388: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L696"> mulxU64(&x387, &x388, x5, (arg2[<span class="tok-number">0</span>]));</span> <span class="line" id="L697"> <span class="tok-kw">var</span> x389: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L698"> <span class="tok-kw">var</span> x390: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L699"> addcarryxU64(&x389, &x390, <span class="tok-number">0x0</span>, x388, x385);</span> <span class="line" id="L700"> <span class="tok-kw">var</span> x391: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L701"> <span class="tok-kw">var</span> x392: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L702"> addcarryxU64(&x391, &x392, x390, x386, x383);</span> <span class="line" id="L703"> <span class="tok-kw">var</span> x393: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L704"> <span class="tok-kw">var</span> x394: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L705"> addcarryxU64(&x393, &x394, x392, x384, x381);</span> <span class="line" id="L706"> <span class="tok-kw">var</span> x395: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L707"> <span class="tok-kw">var</span> x396: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L708"> addcarryxU64(&x395, &x396, x394, x382, x379);</span> <span class="line" id="L709"> <span class="tok-kw">var</span> x397: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L710"> <span class="tok-kw">var</span> x398: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L711"> addcarryxU64(&x397, &x398, x396, x380, x377);</span> <span class="line" id="L712"> <span class="tok-kw">const</span> x399 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x398) + x378);</span> <span class="line" id="L713"> <span class="tok-kw">var</span> x400: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L714"> <span class="tok-kw">var</span> x401: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L715"> addcarryxU64(&x400, &x401, <span class="tok-number">0x0</span>, x364, x387);</span> <span class="line" id="L716"> <span class="tok-kw">var</span> x402: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L717"> <span class="tok-kw">var</span> x403: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L718"> addcarryxU64(&x402, &x403, x401, x366, x389);</span> <span class="line" id="L719"> <span class="tok-kw">var</span> x404: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L720"> <span class="tok-kw">var</span> x405: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L721"> addcarryxU64(&x404, &x405, x403, x368, x391);</span> <span class="line" id="L722"> <span class="tok-kw">var</span> x406: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L723"> <span class="tok-kw">var</span> x407: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L724"> addcarryxU64(&x406, &x407, x405, x370, x393);</span> <span class="line" id="L725"> <span class="tok-kw">var</span> x408: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L726"> <span class="tok-kw">var</span> x409: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L727"> addcarryxU64(&x408, &x409, x407, x372, x395);</span> <span class="line" id="L728"> <span class="tok-kw">var</span> x410: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L729"> <span class="tok-kw">var</span> x411: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L730"> addcarryxU64(&x410, &x411, x409, x374, x397);</span> <span class="line" id="L731"> <span class="tok-kw">var</span> x412: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L732"> <span class="tok-kw">var</span> x413: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L733"> addcarryxU64(&x412, &x413, x411, x376, x399);</span> <span class="line" id="L734"> <span class="tok-kw">var</span> x414: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L735"> <span class="tok-kw">var</span> x415: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L736"> mulxU64(&x414, &x415, x400, <span class="tok-number">0x100000001</span>);</span> <span class="line" id="L737"> <span class="tok-kw">var</span> x416: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L738"> <span class="tok-kw">var</span> x417: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L739"> mulxU64(&x416, &x417, x414, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L740"> <span class="tok-kw">var</span> x418: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L741"> <span class="tok-kw">var</span> x419: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L742"> mulxU64(&x418, &x419, x414, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L743"> <span class="tok-kw">var</span> x420: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L744"> <span class="tok-kw">var</span> x421: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L745"> mulxU64(&x420, &x421, x414, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L746"> <span class="tok-kw">var</span> x422: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L747"> <span class="tok-kw">var</span> x423: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L748"> mulxU64(&x422, &x423, x414, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L749"> <span class="tok-kw">var</span> x424: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L750"> <span class="tok-kw">var</span> x425: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L751"> mulxU64(&x424, &x425, x414, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L752"> <span class="tok-kw">var</span> x426: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L753"> <span class="tok-kw">var</span> x427: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L754"> mulxU64(&x426, &x427, x414, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L755"> <span class="tok-kw">var</span> x428: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L756"> <span class="tok-kw">var</span> x429: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L757"> addcarryxU64(&x428, &x429, <span class="tok-number">0x0</span>, x427, x424);</span> <span class="line" id="L758"> <span class="tok-kw">var</span> x430: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L759"> <span class="tok-kw">var</span> x431: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L760"> addcarryxU64(&x430, &x431, x429, x425, x422);</span> <span class="line" id="L761"> <span class="tok-kw">var</span> x432: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L762"> <span class="tok-kw">var</span> x433: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L763"> addcarryxU64(&x432, &x433, x431, x423, x420);</span> <span class="line" id="L764"> <span class="tok-kw">var</span> x434: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L765"> <span class="tok-kw">var</span> x435: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L766"> addcarryxU64(&x434, &x435, x433, x421, x418);</span> <span class="line" id="L767"> <span class="tok-kw">var</span> x436: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L768"> <span class="tok-kw">var</span> x437: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L769"> addcarryxU64(&x436, &x437, x435, x419, x416);</span> <span class="line" id="L770"> <span class="tok-kw">const</span> x438 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x437) + x417);</span> <span class="line" id="L771"> <span class="tok-kw">var</span> x439: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L772"> <span class="tok-kw">var</span> x440: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L773"> addcarryxU64(&x439, &x440, <span class="tok-number">0x0</span>, x400, x426);</span> <span class="line" id="L774"> <span class="tok-kw">var</span> x441: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L775"> <span class="tok-kw">var</span> x442: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L776"> addcarryxU64(&x441, &x442, x440, x402, x428);</span> <span class="line" id="L777"> <span class="tok-kw">var</span> x443: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L778"> <span class="tok-kw">var</span> x444: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L779"> addcarryxU64(&x443, &x444, x442, x404, x430);</span> <span class="line" id="L780"> <span class="tok-kw">var</span> x445: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L781"> <span class="tok-kw">var</span> x446: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L782"> addcarryxU64(&x445, &x446, x444, x406, x432);</span> <span class="line" id="L783"> <span class="tok-kw">var</span> x447: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L784"> <span class="tok-kw">var</span> x448: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L785"> addcarryxU64(&x447, &x448, x446, x408, x434);</span> <span class="line" id="L786"> <span class="tok-kw">var</span> x449: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L787"> <span class="tok-kw">var</span> x450: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L788"> addcarryxU64(&x449, &x450, x448, x410, x436);</span> <span class="line" id="L789"> <span class="tok-kw">var</span> x451: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L790"> <span class="tok-kw">var</span> x452: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L791"> addcarryxU64(&x451, &x452, x450, x412, x438);</span> <span class="line" id="L792"> <span class="tok-kw">const</span> x453 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x452) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x413));</span> <span class="line" id="L793"> <span class="tok-kw">var</span> x454: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L794"> <span class="tok-kw">var</span> x455: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L795"> subborrowxU64(&x454, &x455, <span class="tok-number">0x0</span>, x441, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L796"> <span class="tok-kw">var</span> x456: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L797"> <span class="tok-kw">var</span> x457: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L798"> subborrowxU64(&x456, &x457, x455, x443, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L799"> <span class="tok-kw">var</span> x458: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L800"> <span class="tok-kw">var</span> x459: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L801"> subborrowxU64(&x458, &x459, x457, x445, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L802"> <span class="tok-kw">var</span> x460: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L803"> <span class="tok-kw">var</span> x461: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L804"> subborrowxU64(&x460, &x461, x459, x447, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L805"> <span class="tok-kw">var</span> x462: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L806"> <span class="tok-kw">var</span> x463: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L807"> subborrowxU64(&x462, &x463, x461, x449, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L808"> <span class="tok-kw">var</span> x464: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L809"> <span class="tok-kw">var</span> x465: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L810"> subborrowxU64(&x464, &x465, x463, x451, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L811"> <span class="tok-kw">var</span> x466: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L812"> <span class="tok-kw">var</span> x467: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L813"> subborrowxU64(&x466, &x467, x465, x453, <span class="tok-number">0x0</span>);</span> <span class="line" id="L814"> <span class="tok-kw">var</span> x468: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L815"> cmovznzU64(&x468, x467, x454, x441);</span> <span class="line" id="L816"> <span class="tok-kw">var</span> x469: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L817"> cmovznzU64(&x469, x467, x456, x443);</span> <span class="line" id="L818"> <span class="tok-kw">var</span> x470: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L819"> cmovznzU64(&x470, x467, x458, x445);</span> <span class="line" id="L820"> <span class="tok-kw">var</span> x471: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L821"> cmovznzU64(&x471, x467, x460, x447);</span> <span class="line" id="L822"> <span class="tok-kw">var</span> x472: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L823"> cmovznzU64(&x472, x467, x462, x449);</span> <span class="line" id="L824"> <span class="tok-kw">var</span> x473: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L825"> cmovznzU64(&x473, x467, x464, x451);</span> <span class="line" id="L826"> out1[<span class="tok-number">0</span>] = x468;</span> <span class="line" id="L827"> out1[<span class="tok-number">1</span>] = x469;</span> <span class="line" id="L828"> out1[<span class="tok-number">2</span>] = x470;</span> <span class="line" id="L829"> out1[<span class="tok-number">3</span>] = x471;</span> <span class="line" id="L830"> out1[<span class="tok-number">4</span>] = x472;</span> <span class="line" id="L831"> out1[<span class="tok-number">5</span>] = x473;</span> <span class="line" id="L832">}</span> <span class="line" id="L833"></span> <span class="line" id="L834"><span class="tok-comment">/// The function square squares a field element in the Montgomery domain.</span></span> <span class="line" id="L835"><span class="tok-comment">///</span></span> <span class="line" id="L836"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L837"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L838"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L839"><span class="tok-comment">/// eval (from_montgomery out1) mod m = (eval (from_montgomery arg1) eval (from_montgomery arg1)) mod m</span></span> <span class="line" id="L840"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L841"><span class="tok-comment">///</span></span> <span class="line" id="L842"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">square</span>(out1: MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L843"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L844"></span> <span class="line" id="L845"> <span class="tok-kw">const</span> x1 = (arg1[<span class="tok-number">1</span>]);</span> <span class="line" id="L846"> <span class="tok-kw">const</span> x2 = (arg1[<span class="tok-number">2</span>]);</span> <span class="line" id="L847"> <span class="tok-kw">const</span> x3 = (arg1[<span class="tok-number">3</span>]);</span> <span class="line" id="L848"> <span class="tok-kw">const</span> x4 = (arg1[<span class="tok-number">4</span>]);</span> <span class="line" id="L849"> <span class="tok-kw">const</span> x5 = (arg1[<span class="tok-number">5</span>]);</span> <span class="line" id="L850"> <span class="tok-kw">const</span> x6 = (arg1[<span class="tok-number">0</span>]);</span> <span class="line" id="L851"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L852"> <span class="tok-kw">var</span> x8: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L853"> mulxU64(&x7, &x8, x6, (arg1[<span class="tok-number">5</span>]));</span> <span class="line" id="L854"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L855"> <span class="tok-kw">var</span> x10: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L856"> mulxU64(&x9, &x10, x6, (arg1[<span class="tok-number">4</span>]));</span> <span class="line" id="L857"> <span class="tok-kw">var</span> x11: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L858"> <span class="tok-kw">var</span> x12: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L859"> mulxU64(&x11, &x12, x6, (arg1[<span class="tok-number">3</span>]));</span> <span class="line" id="L860"> <span class="tok-kw">var</span> x13: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L861"> <span class="tok-kw">var</span> x14: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L862"> mulxU64(&x13, &x14, x6, (arg1[<span class="tok-number">2</span>]));</span> <span class="line" id="L863"> <span class="tok-kw">var</span> x15: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L864"> <span class="tok-kw">var</span> x16: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L865"> mulxU64(&x15, &x16, x6, (arg1[<span class="tok-number">1</span>]));</span> <span class="line" id="L866"> <span class="tok-kw">var</span> x17: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L867"> <span class="tok-kw">var</span> x18: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L868"> mulxU64(&x17, &x18, x6, (arg1[<span class="tok-number">0</span>]));</span> <span class="line" id="L869"> <span class="tok-kw">var</span> x19: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L870"> <span class="tok-kw">var</span> x20: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L871"> addcarryxU64(&x19, &x20, <span class="tok-number">0x0</span>, x18, x15);</span> <span class="line" id="L872"> <span class="tok-kw">var</span> x21: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L873"> <span class="tok-kw">var</span> x22: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L874"> addcarryxU64(&x21, &x22, x20, x16, x13);</span> <span class="line" id="L875"> <span class="tok-kw">var</span> x23: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L876"> <span class="tok-kw">var</span> x24: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L877"> addcarryxU64(&x23, &x24, x22, x14, x11);</span> <span class="line" id="L878"> <span class="tok-kw">var</span> x25: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L879"> <span class="tok-kw">var</span> x26: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L880"> addcarryxU64(&x25, &x26, x24, x12, x9);</span> <span class="line" id="L881"> <span class="tok-kw">var</span> x27: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L882"> <span class="tok-kw">var</span> x28: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L883"> addcarryxU64(&x27, &x28, x26, x10, x7);</span> <span class="line" id="L884"> <span class="tok-kw">const</span> x29 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x28) + x8);</span> <span class="line" id="L885"> <span class="tok-kw">var</span> x30: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L886"> <span class="tok-kw">var</span> x31: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L887"> mulxU64(&x30, &x31, x17, <span class="tok-number">0x100000001</span>);</span> <span class="line" id="L888"> <span class="tok-kw">var</span> x32: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L889"> <span class="tok-kw">var</span> x33: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L890"> mulxU64(&x32, &x33, x30, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L891"> <span class="tok-kw">var</span> x34: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L892"> <span class="tok-kw">var</span> x35: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L893"> mulxU64(&x34, &x35, x30, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L894"> <span class="tok-kw">var</span> x36: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L895"> <span class="tok-kw">var</span> x37: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L896"> mulxU64(&x36, &x37, x30, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L897"> <span class="tok-kw">var</span> x38: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L898"> <span class="tok-kw">var</span> x39: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L899"> mulxU64(&x38, &x39, x30, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L900"> <span class="tok-kw">var</span> x40: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L901"> <span class="tok-kw">var</span> x41: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L902"> mulxU64(&x40, &x41, x30, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L903"> <span class="tok-kw">var</span> x42: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L904"> <span class="tok-kw">var</span> x43: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L905"> mulxU64(&x42, &x43, x30, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L906"> <span class="tok-kw">var</span> x44: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L907"> <span class="tok-kw">var</span> x45: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L908"> addcarryxU64(&x44, &x45, <span class="tok-number">0x0</span>, x43, x40);</span> <span class="line" id="L909"> <span class="tok-kw">var</span> x46: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L910"> <span class="tok-kw">var</span> x47: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L911"> addcarryxU64(&x46, &x47, x45, x41, x38);</span> <span class="line" id="L912"> <span class="tok-kw">var</span> x48: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L913"> <span class="tok-kw">var</span> x49: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L914"> addcarryxU64(&x48, &x49, x47, x39, x36);</span> <span class="line" id="L915"> <span class="tok-kw">var</span> x50: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L916"> <span class="tok-kw">var</span> x51: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L917"> addcarryxU64(&x50, &x51, x49, x37, x34);</span> <span class="line" id="L918"> <span class="tok-kw">var</span> x52: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L919"> <span class="tok-kw">var</span> x53: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L920"> addcarryxU64(&x52, &x53, x51, x35, x32);</span> <span class="line" id="L921"> <span class="tok-kw">const</span> x54 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x53) + x33);</span> <span class="line" id="L922"> <span class="tok-kw">var</span> x55: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L923"> <span class="tok-kw">var</span> x56: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L924"> addcarryxU64(&x55, &x56, <span class="tok-number">0x0</span>, x17, x42);</span> <span class="line" id="L925"> <span class="tok-kw">var</span> x57: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L926"> <span class="tok-kw">var</span> x58: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L927"> addcarryxU64(&x57, &x58, x56, x19, x44);</span> <span class="line" id="L928"> <span class="tok-kw">var</span> x59: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L929"> <span class="tok-kw">var</span> x60: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L930"> addcarryxU64(&x59, &x60, x58, x21, x46);</span> <span class="line" id="L931"> <span class="tok-kw">var</span> x61: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L932"> <span class="tok-kw">var</span> x62: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L933"> addcarryxU64(&x61, &x62, x60, x23, x48);</span> <span class="line" id="L934"> <span class="tok-kw">var</span> x63: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L935"> <span class="tok-kw">var</span> x64: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L936"> addcarryxU64(&x63, &x64, x62, x25, x50);</span> <span class="line" id="L937"> <span class="tok-kw">var</span> x65: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L938"> <span class="tok-kw">var</span> x66: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L939"> addcarryxU64(&x65, &x66, x64, x27, x52);</span> <span class="line" id="L940"> <span class="tok-kw">var</span> x67: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L941"> <span class="tok-kw">var</span> x68: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L942"> addcarryxU64(&x67, &x68, x66, x29, x54);</span> <span class="line" id="L943"> <span class="tok-kw">var</span> x69: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L944"> <span class="tok-kw">var</span> x70: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L945"> mulxU64(&x69, &x70, x1, (arg1[<span class="tok-number">5</span>]));</span> <span class="line" id="L946"> <span class="tok-kw">var</span> x71: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L947"> <span class="tok-kw">var</span> x72: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L948"> mulxU64(&x71, &x72, x1, (arg1[<span class="tok-number">4</span>]));</span> <span class="line" id="L949"> <span class="tok-kw">var</span> x73: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L950"> <span class="tok-kw">var</span> x74: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L951"> mulxU64(&x73, &x74, x1, (arg1[<span class="tok-number">3</span>]));</span> <span class="line" id="L952"> <span class="tok-kw">var</span> x75: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L953"> <span class="tok-kw">var</span> x76: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L954"> mulxU64(&x75, &x76, x1, (arg1[<span class="tok-number">2</span>]));</span> <span class="line" id="L955"> <span class="tok-kw">var</span> x77: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L956"> <span class="tok-kw">var</span> x78: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L957"> mulxU64(&x77, &x78, x1, (arg1[<span class="tok-number">1</span>]));</span> <span class="line" id="L958"> <span class="tok-kw">var</span> x79: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L959"> <span class="tok-kw">var</span> x80: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L960"> mulxU64(&x79, &x80, x1, (arg1[<span class="tok-number">0</span>]));</span> <span class="line" id="L961"> <span class="tok-kw">var</span> x81: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L962"> <span class="tok-kw">var</span> x82: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L963"> addcarryxU64(&x81, &x82, <span class="tok-number">0x0</span>, x80, x77);</span> <span class="line" id="L964"> <span class="tok-kw">var</span> x83: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L965"> <span class="tok-kw">var</span> x84: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L966"> addcarryxU64(&x83, &x84, x82, x78, x75);</span> <span class="line" id="L967"> <span class="tok-kw">var</span> x85: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L968"> <span class="tok-kw">var</span> x86: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L969"> addcarryxU64(&x85, &x86, x84, x76, x73);</span> <span class="line" id="L970"> <span class="tok-kw">var</span> x87: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L971"> <span class="tok-kw">var</span> x88: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L972"> addcarryxU64(&x87, &x88, x86, x74, x71);</span> <span class="line" id="L973"> <span class="tok-kw">var</span> x89: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L974"> <span class="tok-kw">var</span> x90: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L975"> addcarryxU64(&x89, &x90, x88, x72, x69);</span> <span class="line" id="L976"> <span class="tok-kw">const</span> x91 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x90) + x70);</span> <span class="line" id="L977"> <span class="tok-kw">var</span> x92: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L978"> <span class="tok-kw">var</span> x93: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L979"> addcarryxU64(&x92, &x93, <span class="tok-number">0x0</span>, x57, x79);</span> <span class="line" id="L980"> <span class="tok-kw">var</span> x94: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L981"> <span class="tok-kw">var</span> x95: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L982"> addcarryxU64(&x94, &x95, x93, x59, x81);</span> <span class="line" id="L983"> <span class="tok-kw">var</span> x96: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L984"> <span class="tok-kw">var</span> x97: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L985"> addcarryxU64(&x96, &x97, x95, x61, x83);</span> <span class="line" id="L986"> <span class="tok-kw">var</span> x98: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L987"> <span class="tok-kw">var</span> x99: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L988"> addcarryxU64(&x98, &x99, x97, x63, x85);</span> <span class="line" id="L989"> <span class="tok-kw">var</span> x100: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L990"> <span class="tok-kw">var</span> x101: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L991"> addcarryxU64(&x100, &x101, x99, x65, x87);</span> <span class="line" id="L992"> <span class="tok-kw">var</span> x102: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L993"> <span class="tok-kw">var</span> x103: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L994"> addcarryxU64(&x102, &x103, x101, x67, x89);</span> <span class="line" id="L995"> <span class="tok-kw">var</span> x104: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L996"> <span class="tok-kw">var</span> x105: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L997"> addcarryxU64(&x104, &x105, x103, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x68), x91);</span> <span class="line" id="L998"> <span class="tok-kw">var</span> x106: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L999"> <span class="tok-kw">var</span> x107: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1000"> mulxU64(&x106, &x107, x92, <span class="tok-number">0x100000001</span>);</span> <span class="line" id="L1001"> <span class="tok-kw">var</span> x108: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1002"> <span class="tok-kw">var</span> x109: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1003"> mulxU64(&x108, &x109, x106, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1004"> <span class="tok-kw">var</span> x110: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1005"> <span class="tok-kw">var</span> x111: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1006"> mulxU64(&x110, &x111, x106, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1007"> <span class="tok-kw">var</span> x112: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1008"> <span class="tok-kw">var</span> x113: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1009"> mulxU64(&x112, &x113, x106, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1010"> <span class="tok-kw">var</span> x114: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1011"> <span class="tok-kw">var</span> x115: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1012"> mulxU64(&x114, &x115, x106, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L1013"> <span class="tok-kw">var</span> x116: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1014"> <span class="tok-kw">var</span> x117: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1015"> mulxU64(&x116, &x117, x106, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L1016"> <span class="tok-kw">var</span> x118: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1017"> <span class="tok-kw">var</span> x119: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1018"> mulxU64(&x118, &x119, x106, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L1019"> <span class="tok-kw">var</span> x120: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1020"> <span class="tok-kw">var</span> x121: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1021"> addcarryxU64(&x120, &x121, <span class="tok-number">0x0</span>, x119, x116);</span> <span class="line" id="L1022"> <span class="tok-kw">var</span> x122: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1023"> <span class="tok-kw">var</span> x123: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1024"> addcarryxU64(&x122, &x123, x121, x117, x114);</span> <span class="line" id="L1025"> <span class="tok-kw">var</span> x124: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1026"> <span class="tok-kw">var</span> x125: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1027"> addcarryxU64(&x124, &x125, x123, x115, x112);</span> <span class="line" id="L1028"> <span class="tok-kw">var</span> x126: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1029"> <span class="tok-kw">var</span> x127: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1030"> addcarryxU64(&x126, &x127, x125, x113, x110);</span> <span class="line" id="L1031"> <span class="tok-kw">var</span> x128: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1032"> <span class="tok-kw">var</span> x129: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1033"> addcarryxU64(&x128, &x129, x127, x111, x108);</span> <span class="line" id="L1034"> <span class="tok-kw">const</span> x130 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x129) + x109);</span> <span class="line" id="L1035"> <span class="tok-kw">var</span> x131: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1036"> <span class="tok-kw">var</span> x132: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1037"> addcarryxU64(&x131, &x132, <span class="tok-number">0x0</span>, x92, x118);</span> <span class="line" id="L1038"> <span class="tok-kw">var</span> x133: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1039"> <span class="tok-kw">var</span> x134: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1040"> addcarryxU64(&x133, &x134, x132, x94, x120);</span> <span class="line" id="L1041"> <span class="tok-kw">var</span> x135: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1042"> <span class="tok-kw">var</span> x136: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1043"> addcarryxU64(&x135, &x136, x134, x96, x122);</span> <span class="line" id="L1044"> <span class="tok-kw">var</span> x137: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1045"> <span class="tok-kw">var</span> x138: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1046"> addcarryxU64(&x137, &x138, x136, x98, x124);</span> <span class="line" id="L1047"> <span class="tok-kw">var</span> x139: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1048"> <span class="tok-kw">var</span> x140: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1049"> addcarryxU64(&x139, &x140, x138, x100, x126);</span> <span class="line" id="L1050"> <span class="tok-kw">var</span> x141: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1051"> <span class="tok-kw">var</span> x142: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1052"> addcarryxU64(&x141, &x142, x140, x102, x128);</span> <span class="line" id="L1053"> <span class="tok-kw">var</span> x143: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1054"> <span class="tok-kw">var</span> x144: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1055"> addcarryxU64(&x143, &x144, x142, x104, x130);</span> <span class="line" id="L1056"> <span class="tok-kw">const</span> x145 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x144) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x105));</span> <span class="line" id="L1057"> <span class="tok-kw">var</span> x146: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1058"> <span class="tok-kw">var</span> x147: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1059"> mulxU64(&x146, &x147, x2, (arg1[<span class="tok-number">5</span>]));</span> <span class="line" id="L1060"> <span class="tok-kw">var</span> x148: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1061"> <span class="tok-kw">var</span> x149: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1062"> mulxU64(&x148, &x149, x2, (arg1[<span class="tok-number">4</span>]));</span> <span class="line" id="L1063"> <span class="tok-kw">var</span> x150: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1064"> <span class="tok-kw">var</span> x151: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1065"> mulxU64(&x150, &x151, x2, (arg1[<span class="tok-number">3</span>]));</span> <span class="line" id="L1066"> <span class="tok-kw">var</span> x152: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1067"> <span class="tok-kw">var</span> x153: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1068"> mulxU64(&x152, &x153, x2, (arg1[<span class="tok-number">2</span>]));</span> <span class="line" id="L1069"> <span class="tok-kw">var</span> x154: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1070"> <span class="tok-kw">var</span> x155: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1071"> mulxU64(&x154, &x155, x2, (arg1[<span class="tok-number">1</span>]));</span> <span class="line" id="L1072"> <span class="tok-kw">var</span> x156: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1073"> <span class="tok-kw">var</span> x157: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1074"> mulxU64(&x156, &x157, x2, (arg1[<span class="tok-number">0</span>]));</span> <span class="line" id="L1075"> <span class="tok-kw">var</span> x158: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1076"> <span class="tok-kw">var</span> x159: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1077"> addcarryxU64(&x158, &x159, <span class="tok-number">0x0</span>, x157, x154);</span> <span class="line" id="L1078"> <span class="tok-kw">var</span> x160: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1079"> <span class="tok-kw">var</span> x161: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1080"> addcarryxU64(&x160, &x161, x159, x155, x152);</span> <span class="line" id="L1081"> <span class="tok-kw">var</span> x162: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1082"> <span class="tok-kw">var</span> x163: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1083"> addcarryxU64(&x162, &x163, x161, x153, x150);</span> <span class="line" id="L1084"> <span class="tok-kw">var</span> x164: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1085"> <span class="tok-kw">var</span> x165: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1086"> addcarryxU64(&x164, &x165, x163, x151, x148);</span> <span class="line" id="L1087"> <span class="tok-kw">var</span> x166: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1088"> <span class="tok-kw">var</span> x167: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1089"> addcarryxU64(&x166, &x167, x165, x149, x146);</span> <span class="line" id="L1090"> <span class="tok-kw">const</span> x168 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x167) + x147);</span> <span class="line" id="L1091"> <span class="tok-kw">var</span> x169: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1092"> <span class="tok-kw">var</span> x170: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1093"> addcarryxU64(&x169, &x170, <span class="tok-number">0x0</span>, x133, x156);</span> <span class="line" id="L1094"> <span class="tok-kw">var</span> x171: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1095"> <span class="tok-kw">var</span> x172: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1096"> addcarryxU64(&x171, &x172, x170, x135, x158);</span> <span class="line" id="L1097"> <span class="tok-kw">var</span> x173: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1098"> <span class="tok-kw">var</span> x174: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1099"> addcarryxU64(&x173, &x174, x172, x137, x160);</span> <span class="line" id="L1100"> <span class="tok-kw">var</span> x175: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1101"> <span class="tok-kw">var</span> x176: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1102"> addcarryxU64(&x175, &x176, x174, x139, x162);</span> <span class="line" id="L1103"> <span class="tok-kw">var</span> x177: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1104"> <span class="tok-kw">var</span> x178: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1105"> addcarryxU64(&x177, &x178, x176, x141, x164);</span> <span class="line" id="L1106"> <span class="tok-kw">var</span> x179: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1107"> <span class="tok-kw">var</span> x180: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1108"> addcarryxU64(&x179, &x180, x178, x143, x166);</span> <span class="line" id="L1109"> <span class="tok-kw">var</span> x181: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1110"> <span class="tok-kw">var</span> x182: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1111"> addcarryxU64(&x181, &x182, x180, x145, x168);</span> <span class="line" id="L1112"> <span class="tok-kw">var</span> x183: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1113"> <span class="tok-kw">var</span> x184: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1114"> mulxU64(&x183, &x184, x169, <span class="tok-number">0x100000001</span>);</span> <span class="line" id="L1115"> <span class="tok-kw">var</span> x185: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1116"> <span class="tok-kw">var</span> x186: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1117"> mulxU64(&x185, &x186, x183, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1118"> <span class="tok-kw">var</span> x187: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1119"> <span class="tok-kw">var</span> x188: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1120"> mulxU64(&x187, &x188, x183, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1121"> <span class="tok-kw">var</span> x189: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1122"> <span class="tok-kw">var</span> x190: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1123"> mulxU64(&x189, &x190, x183, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1124"> <span class="tok-kw">var</span> x191: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1125"> <span class="tok-kw">var</span> x192: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1126"> mulxU64(&x191, &x192, x183, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L1127"> <span class="tok-kw">var</span> x193: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1128"> <span class="tok-kw">var</span> x194: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1129"> mulxU64(&x193, &x194, x183, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L1130"> <span class="tok-kw">var</span> x195: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1131"> <span class="tok-kw">var</span> x196: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1132"> mulxU64(&x195, &x196, x183, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L1133"> <span class="tok-kw">var</span> x197: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1134"> <span class="tok-kw">var</span> x198: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1135"> addcarryxU64(&x197, &x198, <span class="tok-number">0x0</span>, x196, x193);</span> <span class="line" id="L1136"> <span class="tok-kw">var</span> x199: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1137"> <span class="tok-kw">var</span> x200: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1138"> addcarryxU64(&x199, &x200, x198, x194, x191);</span> <span class="line" id="L1139"> <span class="tok-kw">var</span> x201: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1140"> <span class="tok-kw">var</span> x202: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1141"> addcarryxU64(&x201, &x202, x200, x192, x189);</span> <span class="line" id="L1142"> <span class="tok-kw">var</span> x203: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1143"> <span class="tok-kw">var</span> x204: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1144"> addcarryxU64(&x203, &x204, x202, x190, x187);</span> <span class="line" id="L1145"> <span class="tok-kw">var</span> x205: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1146"> <span class="tok-kw">var</span> x206: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1147"> addcarryxU64(&x205, &x206, x204, x188, x185);</span> <span class="line" id="L1148"> <span class="tok-kw">const</span> x207 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x206) + x186);</span> <span class="line" id="L1149"> <span class="tok-kw">var</span> x208: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1150"> <span class="tok-kw">var</span> x209: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1151"> addcarryxU64(&x208, &x209, <span class="tok-number">0x0</span>, x169, x195);</span> <span class="line" id="L1152"> <span class="tok-kw">var</span> x210: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1153"> <span class="tok-kw">var</span> x211: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1154"> addcarryxU64(&x210, &x211, x209, x171, x197);</span> <span class="line" id="L1155"> <span class="tok-kw">var</span> x212: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1156"> <span class="tok-kw">var</span> x213: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1157"> addcarryxU64(&x212, &x213, x211, x173, x199);</span> <span class="line" id="L1158"> <span class="tok-kw">var</span> x214: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1159"> <span class="tok-kw">var</span> x215: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1160"> addcarryxU64(&x214, &x215, x213, x175, x201);</span> <span class="line" id="L1161"> <span class="tok-kw">var</span> x216: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1162"> <span class="tok-kw">var</span> x217: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1163"> addcarryxU64(&x216, &x217, x215, x177, x203);</span> <span class="line" id="L1164"> <span class="tok-kw">var</span> x218: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1165"> <span class="tok-kw">var</span> x219: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1166"> addcarryxU64(&x218, &x219, x217, x179, x205);</span> <span class="line" id="L1167"> <span class="tok-kw">var</span> x220: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1168"> <span class="tok-kw">var</span> x221: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1169"> addcarryxU64(&x220, &x221, x219, x181, x207);</span> <span class="line" id="L1170"> <span class="tok-kw">const</span> x222 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x221) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x182));</span> <span class="line" id="L1171"> <span class="tok-kw">var</span> x223: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1172"> <span class="tok-kw">var</span> x224: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1173"> mulxU64(&x223, &x224, x3, (arg1[<span class="tok-number">5</span>]));</span> <span class="line" id="L1174"> <span class="tok-kw">var</span> x225: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1175"> <span class="tok-kw">var</span> x226: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1176"> mulxU64(&x225, &x226, x3, (arg1[<span class="tok-number">4</span>]));</span> <span class="line" id="L1177"> <span class="tok-kw">var</span> x227: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1178"> <span class="tok-kw">var</span> x228: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1179"> mulxU64(&x227, &x228, x3, (arg1[<span class="tok-number">3</span>]));</span> <span class="line" id="L1180"> <span class="tok-kw">var</span> x229: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1181"> <span class="tok-kw">var</span> x230: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1182"> mulxU64(&x229, &x230, x3, (arg1[<span class="tok-number">2</span>]));</span> <span class="line" id="L1183"> <span class="tok-kw">var</span> x231: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1184"> <span class="tok-kw">var</span> x232: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1185"> mulxU64(&x231, &x232, x3, (arg1[<span class="tok-number">1</span>]));</span> <span class="line" id="L1186"> <span class="tok-kw">var</span> x233: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1187"> <span class="tok-kw">var</span> x234: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1188"> mulxU64(&x233, &x234, x3, (arg1[<span class="tok-number">0</span>]));</span> <span class="line" id="L1189"> <span class="tok-kw">var</span> x235: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1190"> <span class="tok-kw">var</span> x236: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1191"> addcarryxU64(&x235, &x236, <span class="tok-number">0x0</span>, x234, x231);</span> <span class="line" id="L1192"> <span class="tok-kw">var</span> x237: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1193"> <span class="tok-kw">var</span> x238: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1194"> addcarryxU64(&x237, &x238, x236, x232, x229);</span> <span class="line" id="L1195"> <span class="tok-kw">var</span> x239: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1196"> <span class="tok-kw">var</span> x240: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1197"> addcarryxU64(&x239, &x240, x238, x230, x227);</span> <span class="line" id="L1198"> <span class="tok-kw">var</span> x241: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1199"> <span class="tok-kw">var</span> x242: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1200"> addcarryxU64(&x241, &x242, x240, x228, x225);</span> <span class="line" id="L1201"> <span class="tok-kw">var</span> x243: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1202"> <span class="tok-kw">var</span> x244: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1203"> addcarryxU64(&x243, &x244, x242, x226, x223);</span> <span class="line" id="L1204"> <span class="tok-kw">const</span> x245 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x244) + x224);</span> <span class="line" id="L1205"> <span class="tok-kw">var</span> x246: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1206"> <span class="tok-kw">var</span> x247: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1207"> addcarryxU64(&x246, &x247, <span class="tok-number">0x0</span>, x210, x233);</span> <span class="line" id="L1208"> <span class="tok-kw">var</span> x248: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1209"> <span class="tok-kw">var</span> x249: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1210"> addcarryxU64(&x248, &x249, x247, x212, x235);</span> <span class="line" id="L1211"> <span class="tok-kw">var</span> x250: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1212"> <span class="tok-kw">var</span> x251: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1213"> addcarryxU64(&x250, &x251, x249, x214, x237);</span> <span class="line" id="L1214"> <span class="tok-kw">var</span> x252: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1215"> <span class="tok-kw">var</span> x253: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1216"> addcarryxU64(&x252, &x253, x251, x216, x239);</span> <span class="line" id="L1217"> <span class="tok-kw">var</span> x254: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1218"> <span class="tok-kw">var</span> x255: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1219"> addcarryxU64(&x254, &x255, x253, x218, x241);</span> <span class="line" id="L1220"> <span class="tok-kw">var</span> x256: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1221"> <span class="tok-kw">var</span> x257: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1222"> addcarryxU64(&x256, &x257, x255, x220, x243);</span> <span class="line" id="L1223"> <span class="tok-kw">var</span> x258: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1224"> <span class="tok-kw">var</span> x259: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1225"> addcarryxU64(&x258, &x259, x257, x222, x245);</span> <span class="line" id="L1226"> <span class="tok-kw">var</span> x260: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1227"> <span class="tok-kw">var</span> x261: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1228"> mulxU64(&x260, &x261, x246, <span class="tok-number">0x100000001</span>);</span> <span class="line" id="L1229"> <span class="tok-kw">var</span> x262: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1230"> <span class="tok-kw">var</span> x263: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1231"> mulxU64(&x262, &x263, x260, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1232"> <span class="tok-kw">var</span> x264: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1233"> <span class="tok-kw">var</span> x265: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1234"> mulxU64(&x264, &x265, x260, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1235"> <span class="tok-kw">var</span> x266: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1236"> <span class="tok-kw">var</span> x267: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1237"> mulxU64(&x266, &x267, x260, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1238"> <span class="tok-kw">var</span> x268: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1239"> <span class="tok-kw">var</span> x269: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1240"> mulxU64(&x268, &x269, x260, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L1241"> <span class="tok-kw">var</span> x270: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1242"> <span class="tok-kw">var</span> x271: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1243"> mulxU64(&x270, &x271, x260, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L1244"> <span class="tok-kw">var</span> x272: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1245"> <span class="tok-kw">var</span> x273: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1246"> mulxU64(&x272, &x273, x260, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L1247"> <span class="tok-kw">var</span> x274: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1248"> <span class="tok-kw">var</span> x275: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1249"> addcarryxU64(&x274, &x275, <span class="tok-number">0x0</span>, x273, x270);</span> <span class="line" id="L1250"> <span class="tok-kw">var</span> x276: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1251"> <span class="tok-kw">var</span> x277: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1252"> addcarryxU64(&x276, &x277, x275, x271, x268);</span> <span class="line" id="L1253"> <span class="tok-kw">var</span> x278: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1254"> <span class="tok-kw">var</span> x279: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1255"> addcarryxU64(&x278, &x279, x277, x269, x266);</span> <span class="line" id="L1256"> <span class="tok-kw">var</span> x280: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1257"> <span class="tok-kw">var</span> x281: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1258"> addcarryxU64(&x280, &x281, x279, x267, x264);</span> <span class="line" id="L1259"> <span class="tok-kw">var</span> x282: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1260"> <span class="tok-kw">var</span> x283: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1261"> addcarryxU64(&x282, &x283, x281, x265, x262);</span> <span class="line" id="L1262"> <span class="tok-kw">const</span> x284 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x283) + x263);</span> <span class="line" id="L1263"> <span class="tok-kw">var</span> x285: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1264"> <span class="tok-kw">var</span> x286: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1265"> addcarryxU64(&x285, &x286, <span class="tok-number">0x0</span>, x246, x272);</span> <span class="line" id="L1266"> <span class="tok-kw">var</span> x287: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1267"> <span class="tok-kw">var</span> x288: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1268"> addcarryxU64(&x287, &x288, x286, x248, x274);</span> <span class="line" id="L1269"> <span class="tok-kw">var</span> x289: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1270"> <span class="tok-kw">var</span> x290: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1271"> addcarryxU64(&x289, &x290, x288, x250, x276);</span> <span class="line" id="L1272"> <span class="tok-kw">var</span> x291: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1273"> <span class="tok-kw">var</span> x292: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1274"> addcarryxU64(&x291, &x292, x290, x252, x278);</span> <span class="line" id="L1275"> <span class="tok-kw">var</span> x293: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1276"> <span class="tok-kw">var</span> x294: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1277"> addcarryxU64(&x293, &x294, x292, x254, x280);</span> <span class="line" id="L1278"> <span class="tok-kw">var</span> x295: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1279"> <span class="tok-kw">var</span> x296: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1280"> addcarryxU64(&x295, &x296, x294, x256, x282);</span> <span class="line" id="L1281"> <span class="tok-kw">var</span> x297: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1282"> <span class="tok-kw">var</span> x298: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1283"> addcarryxU64(&x297, &x298, x296, x258, x284);</span> <span class="line" id="L1284"> <span class="tok-kw">const</span> x299 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x298) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x259));</span> <span class="line" id="L1285"> <span class="tok-kw">var</span> x300: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1286"> <span class="tok-kw">var</span> x301: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1287"> mulxU64(&x300, &x301, x4, (arg1[<span class="tok-number">5</span>]));</span> <span class="line" id="L1288"> <span class="tok-kw">var</span> x302: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1289"> <span class="tok-kw">var</span> x303: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1290"> mulxU64(&x302, &x303, x4, (arg1[<span class="tok-number">4</span>]));</span> <span class="line" id="L1291"> <span class="tok-kw">var</span> x304: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1292"> <span class="tok-kw">var</span> x305: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1293"> mulxU64(&x304, &x305, x4, (arg1[<span class="tok-number">3</span>]));</span> <span class="line" id="L1294"> <span class="tok-kw">var</span> x306: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1295"> <span class="tok-kw">var</span> x307: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1296"> mulxU64(&x306, &x307, x4, (arg1[<span class="tok-number">2</span>]));</span> <span class="line" id="L1297"> <span class="tok-kw">var</span> x308: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1298"> <span class="tok-kw">var</span> x309: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1299"> mulxU64(&x308, &x309, x4, (arg1[<span class="tok-number">1</span>]));</span> <span class="line" id="L1300"> <span class="tok-kw">var</span> x310: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1301"> <span class="tok-kw">var</span> x311: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1302"> mulxU64(&x310, &x311, x4, (arg1[<span class="tok-number">0</span>]));</span> <span class="line" id="L1303"> <span class="tok-kw">var</span> x312: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1304"> <span class="tok-kw">var</span> x313: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1305"> addcarryxU64(&x312, &x313, <span class="tok-number">0x0</span>, x311, x308);</span> <span class="line" id="L1306"> <span class="tok-kw">var</span> x314: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1307"> <span class="tok-kw">var</span> x315: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1308"> addcarryxU64(&x314, &x315, x313, x309, x306);</span> <span class="line" id="L1309"> <span class="tok-kw">var</span> x316: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1310"> <span class="tok-kw">var</span> x317: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1311"> addcarryxU64(&x316, &x317, x315, x307, x304);</span> <span class="line" id="L1312"> <span class="tok-kw">var</span> x318: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1313"> <span class="tok-kw">var</span> x319: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1314"> addcarryxU64(&x318, &x319, x317, x305, x302);</span> <span class="line" id="L1315"> <span class="tok-kw">var</span> x320: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1316"> <span class="tok-kw">var</span> x321: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1317"> addcarryxU64(&x320, &x321, x319, x303, x300);</span> <span class="line" id="L1318"> <span class="tok-kw">const</span> x322 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x321) + x301);</span> <span class="line" id="L1319"> <span class="tok-kw">var</span> x323: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1320"> <span class="tok-kw">var</span> x324: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1321"> addcarryxU64(&x323, &x324, <span class="tok-number">0x0</span>, x287, x310);</span> <span class="line" id="L1322"> <span class="tok-kw">var</span> x325: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1323"> <span class="tok-kw">var</span> x326: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1324"> addcarryxU64(&x325, &x326, x324, x289, x312);</span> <span class="line" id="L1325"> <span class="tok-kw">var</span> x327: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1326"> <span class="tok-kw">var</span> x328: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1327"> addcarryxU64(&x327, &x328, x326, x291, x314);</span> <span class="line" id="L1328"> <span class="tok-kw">var</span> x329: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1329"> <span class="tok-kw">var</span> x330: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1330"> addcarryxU64(&x329, &x330, x328, x293, x316);</span> <span class="line" id="L1331"> <span class="tok-kw">var</span> x331: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1332"> <span class="tok-kw">var</span> x332: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1333"> addcarryxU64(&x331, &x332, x330, x295, x318);</span> <span class="line" id="L1334"> <span class="tok-kw">var</span> x333: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1335"> <span class="tok-kw">var</span> x334: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1336"> addcarryxU64(&x333, &x334, x332, x297, x320);</span> <span class="line" id="L1337"> <span class="tok-kw">var</span> x335: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1338"> <span class="tok-kw">var</span> x336: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1339"> addcarryxU64(&x335, &x336, x334, x299, x322);</span> <span class="line" id="L1340"> <span class="tok-kw">var</span> x337: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1341"> <span class="tok-kw">var</span> x338: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1342"> mulxU64(&x337, &x338, x323, <span class="tok-number">0x100000001</span>);</span> <span class="line" id="L1343"> <span class="tok-kw">var</span> x339: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1344"> <span class="tok-kw">var</span> x340: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1345"> mulxU64(&x339, &x340, x337, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1346"> <span class="tok-kw">var</span> x341: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1347"> <span class="tok-kw">var</span> x342: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1348"> mulxU64(&x341, &x342, x337, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1349"> <span class="tok-kw">var</span> x343: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1350"> <span class="tok-kw">var</span> x344: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1351"> mulxU64(&x343, &x344, x337, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1352"> <span class="tok-kw">var</span> x345: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1353"> <span class="tok-kw">var</span> x346: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1354"> mulxU64(&x345, &x346, x337, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L1355"> <span class="tok-kw">var</span> x347: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1356"> <span class="tok-kw">var</span> x348: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1357"> mulxU64(&x347, &x348, x337, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L1358"> <span class="tok-kw">var</span> x349: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1359"> <span class="tok-kw">var</span> x350: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1360"> mulxU64(&x349, &x350, x337, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L1361"> <span class="tok-kw">var</span> x351: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1362"> <span class="tok-kw">var</span> x352: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1363"> addcarryxU64(&x351, &x352, <span class="tok-number">0x0</span>, x350, x347);</span> <span class="line" id="L1364"> <span class="tok-kw">var</span> x353: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1365"> <span class="tok-kw">var</span> x354: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1366"> addcarryxU64(&x353, &x354, x352, x348, x345);</span> <span class="line" id="L1367"> <span class="tok-kw">var</span> x355: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1368"> <span class="tok-kw">var</span> x356: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1369"> addcarryxU64(&x355, &x356, x354, x346, x343);</span> <span class="line" id="L1370"> <span class="tok-kw">var</span> x357: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1371"> <span class="tok-kw">var</span> x358: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1372"> addcarryxU64(&x357, &x358, x356, x344, x341);</span> <span class="line" id="L1373"> <span class="tok-kw">var</span> x359: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1374"> <span class="tok-kw">var</span> x360: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1375"> addcarryxU64(&x359, &x360, x358, x342, x339);</span> <span class="line" id="L1376"> <span class="tok-kw">const</span> x361 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x360) + x340);</span> <span class="line" id="L1377"> <span class="tok-kw">var</span> x362: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1378"> <span class="tok-kw">var</span> x363: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1379"> addcarryxU64(&x362, &x363, <span class="tok-number">0x0</span>, x323, x349);</span> <span class="line" id="L1380"> <span class="tok-kw">var</span> x364: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1381"> <span class="tok-kw">var</span> x365: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1382"> addcarryxU64(&x364, &x365, x363, x325, x351);</span> <span class="line" id="L1383"> <span class="tok-kw">var</span> x366: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1384"> <span class="tok-kw">var</span> x367: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1385"> addcarryxU64(&x366, &x367, x365, x327, x353);</span> <span class="line" id="L1386"> <span class="tok-kw">var</span> x368: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1387"> <span class="tok-kw">var</span> x369: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1388"> addcarryxU64(&x368, &x369, x367, x329, x355);</span> <span class="line" id="L1389"> <span class="tok-kw">var</span> x370: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1390"> <span class="tok-kw">var</span> x371: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1391"> addcarryxU64(&x370, &x371, x369, x331, x357);</span> <span class="line" id="L1392"> <span class="tok-kw">var</span> x372: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1393"> <span class="tok-kw">var</span> x373: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1394"> addcarryxU64(&x372, &x373, x371, x333, x359);</span> <span class="line" id="L1395"> <span class="tok-kw">var</span> x374: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1396"> <span class="tok-kw">var</span> x375: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1397"> addcarryxU64(&x374, &x375, x373, x335, x361);</span> <span class="line" id="L1398"> <span class="tok-kw">const</span> x376 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x375) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x336));</span> <span class="line" id="L1399"> <span class="tok-kw">var</span> x377: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1400"> <span class="tok-kw">var</span> x378: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1401"> mulxU64(&x377, &x378, x5, (arg1[<span class="tok-number">5</span>]));</span> <span class="line" id="L1402"> <span class="tok-kw">var</span> x379: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1403"> <span class="tok-kw">var</span> x380: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1404"> mulxU64(&x379, &x380, x5, (arg1[<span class="tok-number">4</span>]));</span> <span class="line" id="L1405"> <span class="tok-kw">var</span> x381: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1406"> <span class="tok-kw">var</span> x382: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1407"> mulxU64(&x381, &x382, x5, (arg1[<span class="tok-number">3</span>]));</span> <span class="line" id="L1408"> <span class="tok-kw">var</span> x383: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1409"> <span class="tok-kw">var</span> x384: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1410"> mulxU64(&x383, &x384, x5, (arg1[<span class="tok-number">2</span>]));</span> <span class="line" id="L1411"> <span class="tok-kw">var</span> x385: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1412"> <span class="tok-kw">var</span> x386: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1413"> mulxU64(&x385, &x386, x5, (arg1[<span class="tok-number">1</span>]));</span> <span class="line" id="L1414"> <span class="tok-kw">var</span> x387: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1415"> <span class="tok-kw">var</span> x388: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1416"> mulxU64(&x387, &x388, x5, (arg1[<span class="tok-number">0</span>]));</span> <span class="line" id="L1417"> <span class="tok-kw">var</span> x389: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1418"> <span class="tok-kw">var</span> x390: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1419"> addcarryxU64(&x389, &x390, <span class="tok-number">0x0</span>, x388, x385);</span> <span class="line" id="L1420"> <span class="tok-kw">var</span> x391: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1421"> <span class="tok-kw">var</span> x392: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1422"> addcarryxU64(&x391, &x392, x390, x386, x383);</span> <span class="line" id="L1423"> <span class="tok-kw">var</span> x393: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1424"> <span class="tok-kw">var</span> x394: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1425"> addcarryxU64(&x393, &x394, x392, x384, x381);</span> <span class="line" id="L1426"> <span class="tok-kw">var</span> x395: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1427"> <span class="tok-kw">var</span> x396: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1428"> addcarryxU64(&x395, &x396, x394, x382, x379);</span> <span class="line" id="L1429"> <span class="tok-kw">var</span> x397: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1430"> <span class="tok-kw">var</span> x398: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1431"> addcarryxU64(&x397, &x398, x396, x380, x377);</span> <span class="line" id="L1432"> <span class="tok-kw">const</span> x399 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x398) + x378);</span> <span class="line" id="L1433"> <span class="tok-kw">var</span> x400: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1434"> <span class="tok-kw">var</span> x401: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1435"> addcarryxU64(&x400, &x401, <span class="tok-number">0x0</span>, x364, x387);</span> <span class="line" id="L1436"> <span class="tok-kw">var</span> x402: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1437"> <span class="tok-kw">var</span> x403: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1438"> addcarryxU64(&x402, &x403, x401, x366, x389);</span> <span class="line" id="L1439"> <span class="tok-kw">var</span> x404: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1440"> <span class="tok-kw">var</span> x405: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1441"> addcarryxU64(&x404, &x405, x403, x368, x391);</span> <span class="line" id="L1442"> <span class="tok-kw">var</span> x406: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1443"> <span class="tok-kw">var</span> x407: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1444"> addcarryxU64(&x406, &x407, x405, x370, x393);</span> <span class="line" id="L1445"> <span class="tok-kw">var</span> x408: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1446"> <span class="tok-kw">var</span> x409: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1447"> addcarryxU64(&x408, &x409, x407, x372, x395);</span> <span class="line" id="L1448"> <span class="tok-kw">var</span> x410: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1449"> <span class="tok-kw">var</span> x411: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1450"> addcarryxU64(&x410, &x411, x409, x374, x397);</span> <span class="line" id="L1451"> <span class="tok-kw">var</span> x412: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1452"> <span class="tok-kw">var</span> x413: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1453"> addcarryxU64(&x412, &x413, x411, x376, x399);</span> <span class="line" id="L1454"> <span class="tok-kw">var</span> x414: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1455"> <span class="tok-kw">var</span> x415: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1456"> mulxU64(&x414, &x415, x400, <span class="tok-number">0x100000001</span>);</span> <span class="line" id="L1457"> <span class="tok-kw">var</span> x416: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1458"> <span class="tok-kw">var</span> x417: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1459"> mulxU64(&x416, &x417, x414, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1460"> <span class="tok-kw">var</span> x418: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1461"> <span class="tok-kw">var</span> x419: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1462"> mulxU64(&x418, &x419, x414, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1463"> <span class="tok-kw">var</span> x420: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1464"> <span class="tok-kw">var</span> x421: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1465"> mulxU64(&x420, &x421, x414, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1466"> <span class="tok-kw">var</span> x422: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1467"> <span class="tok-kw">var</span> x423: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1468"> mulxU64(&x422, &x423, x414, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L1469"> <span class="tok-kw">var</span> x424: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1470"> <span class="tok-kw">var</span> x425: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1471"> mulxU64(&x424, &x425, x414, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L1472"> <span class="tok-kw">var</span> x426: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1473"> <span class="tok-kw">var</span> x427: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1474"> mulxU64(&x426, &x427, x414, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L1475"> <span class="tok-kw">var</span> x428: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1476"> <span class="tok-kw">var</span> x429: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1477"> addcarryxU64(&x428, &x429, <span class="tok-number">0x0</span>, x427, x424);</span> <span class="line" id="L1478"> <span class="tok-kw">var</span> x430: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1479"> <span class="tok-kw">var</span> x431: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1480"> addcarryxU64(&x430, &x431, x429, x425, x422);</span> <span class="line" id="L1481"> <span class="tok-kw">var</span> x432: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1482"> <span class="tok-kw">var</span> x433: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1483"> addcarryxU64(&x432, &x433, x431, x423, x420);</span> <span class="line" id="L1484"> <span class="tok-kw">var</span> x434: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1485"> <span class="tok-kw">var</span> x435: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1486"> addcarryxU64(&x434, &x435, x433, x421, x418);</span> <span class="line" id="L1487"> <span class="tok-kw">var</span> x436: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1488"> <span class="tok-kw">var</span> x437: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1489"> addcarryxU64(&x436, &x437, x435, x419, x416);</span> <span class="line" id="L1490"> <span class="tok-kw">const</span> x438 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x437) + x417);</span> <span class="line" id="L1491"> <span class="tok-kw">var</span> x439: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1492"> <span class="tok-kw">var</span> x440: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1493"> addcarryxU64(&x439, &x440, <span class="tok-number">0x0</span>, x400, x426);</span> <span class="line" id="L1494"> <span class="tok-kw">var</span> x441: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1495"> <span class="tok-kw">var</span> x442: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1496"> addcarryxU64(&x441, &x442, x440, x402, x428);</span> <span class="line" id="L1497"> <span class="tok-kw">var</span> x443: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1498"> <span class="tok-kw">var</span> x444: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1499"> addcarryxU64(&x443, &x444, x442, x404, x430);</span> <span class="line" id="L1500"> <span class="tok-kw">var</span> x445: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1501"> <span class="tok-kw">var</span> x446: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1502"> addcarryxU64(&x445, &x446, x444, x406, x432);</span> <span class="line" id="L1503"> <span class="tok-kw">var</span> x447: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1504"> <span class="tok-kw">var</span> x448: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1505"> addcarryxU64(&x447, &x448, x446, x408, x434);</span> <span class="line" id="L1506"> <span class="tok-kw">var</span> x449: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1507"> <span class="tok-kw">var</span> x450: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1508"> addcarryxU64(&x449, &x450, x448, x410, x436);</span> <span class="line" id="L1509"> <span class="tok-kw">var</span> x451: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1510"> <span class="tok-kw">var</span> x452: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1511"> addcarryxU64(&x451, &x452, x450, x412, x438);</span> <span class="line" id="L1512"> <span class="tok-kw">const</span> x453 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x452) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x413));</span> <span class="line" id="L1513"> <span class="tok-kw">var</span> x454: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1514"> <span class="tok-kw">var</span> x455: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1515"> subborrowxU64(&x454, &x455, <span class="tok-number">0x0</span>, x441, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L1516"> <span class="tok-kw">var</span> x456: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1517"> <span class="tok-kw">var</span> x457: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1518"> subborrowxU64(&x456, &x457, x455, x443, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L1519"> <span class="tok-kw">var</span> x458: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1520"> <span class="tok-kw">var</span> x459: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1521"> subborrowxU64(&x458, &x459, x457, x445, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L1522"> <span class="tok-kw">var</span> x460: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1523"> <span class="tok-kw">var</span> x461: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1524"> subborrowxU64(&x460, &x461, x459, x447, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1525"> <span class="tok-kw">var</span> x462: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1526"> <span class="tok-kw">var</span> x463: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1527"> subborrowxU64(&x462, &x463, x461, x449, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1528"> <span class="tok-kw">var</span> x464: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1529"> <span class="tok-kw">var</span> x465: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1530"> subborrowxU64(&x464, &x465, x463, x451, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1531"> <span class="tok-kw">var</span> x466: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1532"> <span class="tok-kw">var</span> x467: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1533"> subborrowxU64(&x466, &x467, x465, x453, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1534"> <span class="tok-kw">var</span> x468: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1535"> cmovznzU64(&x468, x467, x454, x441);</span> <span class="line" id="L1536"> <span class="tok-kw">var</span> x469: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1537"> cmovznzU64(&x469, x467, x456, x443);</span> <span class="line" id="L1538"> <span class="tok-kw">var</span> x470: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1539"> cmovznzU64(&x470, x467, x458, x445);</span> <span class="line" id="L1540"> <span class="tok-kw">var</span> x471: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1541"> cmovznzU64(&x471, x467, x460, x447);</span> <span class="line" id="L1542"> <span class="tok-kw">var</span> x472: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1543"> cmovznzU64(&x472, x467, x462, x449);</span> <span class="line" id="L1544"> <span class="tok-kw">var</span> x473: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1545"> cmovznzU64(&x473, x467, x464, x451);</span> <span class="line" id="L1546"> out1[<span class="tok-number">0</span>] = x468;</span> <span class="line" id="L1547"> out1[<span class="tok-number">1</span>] = x469;</span> <span class="line" id="L1548"> out1[<span class="tok-number">2</span>] = x470;</span> <span class="line" id="L1549"> out1[<span class="tok-number">3</span>] = x471;</span> <span class="line" id="L1550"> out1[<span class="tok-number">4</span>] = x472;</span> <span class="line" id="L1551"> out1[<span class="tok-number">5</span>] = x473;</span> <span class="line" id="L1552">}</span> <span class="line" id="L1553"></span> <span class="line" id="L1554"><span class="tok-comment">/// The function add adds two field elements in the Montgomery domain.</span></span> <span class="line" id="L1555"><span class="tok-comment">///</span></span> <span class="line" id="L1556"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L1557"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L1558"><span class="tok-comment">/// 0 ≤ eval arg2 < m</span></span> <span class="line" id="L1559"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L1560"><span class="tok-comment">/// eval (from_montgomery out1) mod m = (eval (from_montgomery arg1) + eval (from_montgomery arg2)) mod m</span></span> <span class="line" id="L1561"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L1562"><span class="tok-comment">///</span></span> <span class="line" id="L1563"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">add</span>(out1: MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldElement, arg2: MontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L1564"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L1565"></span> <span class="line" id="L1566"> <span class="tok-kw">var</span> x1: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1567"> <span class="tok-kw">var</span> x2: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1568"> addcarryxU64(&x1, &x2, <span class="tok-number">0x0</span>, (arg1[<span class="tok-number">0</span>]), (arg2[<span class="tok-number">0</span>]));</span> <span class="line" id="L1569"> <span class="tok-kw">var</span> x3: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1570"> <span class="tok-kw">var</span> x4: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1571"> addcarryxU64(&x3, &x4, x2, (arg1[<span class="tok-number">1</span>]), (arg2[<span class="tok-number">1</span>]));</span> <span class="line" id="L1572"> <span class="tok-kw">var</span> x5: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1573"> <span class="tok-kw">var</span> x6: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1574"> addcarryxU64(&x5, &x6, x4, (arg1[<span class="tok-number">2</span>]), (arg2[<span class="tok-number">2</span>]));</span> <span class="line" id="L1575"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1576"> <span class="tok-kw">var</span> x8: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1577"> addcarryxU64(&x7, &x8, x6, (arg1[<span class="tok-number">3</span>]), (arg2[<span class="tok-number">3</span>]));</span> <span class="line" id="L1578"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1579"> <span class="tok-kw">var</span> x10: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1580"> addcarryxU64(&x9, &x10, x8, (arg1[<span class="tok-number">4</span>]), (arg2[<span class="tok-number">4</span>]));</span> <span class="line" id="L1581"> <span class="tok-kw">var</span> x11: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1582"> <span class="tok-kw">var</span> x12: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1583"> addcarryxU64(&x11, &x12, x10, (arg1[<span class="tok-number">5</span>]), (arg2[<span class="tok-number">5</span>]));</span> <span class="line" id="L1584"> <span class="tok-kw">var</span> x13: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1585"> <span class="tok-kw">var</span> x14: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1586"> subborrowxU64(&x13, &x14, <span class="tok-number">0x0</span>, x1, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L1587"> <span class="tok-kw">var</span> x15: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1588"> <span class="tok-kw">var</span> x16: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1589"> subborrowxU64(&x15, &x16, x14, x3, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L1590"> <span class="tok-kw">var</span> x17: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1591"> <span class="tok-kw">var</span> x18: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1592"> subborrowxU64(&x17, &x18, x16, x5, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L1593"> <span class="tok-kw">var</span> x19: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1594"> <span class="tok-kw">var</span> x20: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1595"> subborrowxU64(&x19, &x20, x18, x7, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1596"> <span class="tok-kw">var</span> x21: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1597"> <span class="tok-kw">var</span> x22: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1598"> subborrowxU64(&x21, &x22, x20, x9, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1599"> <span class="tok-kw">var</span> x23: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1600"> <span class="tok-kw">var</span> x24: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1601"> subborrowxU64(&x23, &x24, x22, x11, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1602"> <span class="tok-kw">var</span> x25: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1603"> <span class="tok-kw">var</span> x26: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1604"> subborrowxU64(&x25, &x26, x24, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x12), <span class="tok-number">0x0</span>);</span> <span class="line" id="L1605"> <span class="tok-kw">var</span> x27: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1606"> cmovznzU64(&x27, x26, x13, x1);</span> <span class="line" id="L1607"> <span class="tok-kw">var</span> x28: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1608"> cmovznzU64(&x28, x26, x15, x3);</span> <span class="line" id="L1609"> <span class="tok-kw">var</span> x29: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1610"> cmovznzU64(&x29, x26, x17, x5);</span> <span class="line" id="L1611"> <span class="tok-kw">var</span> x30: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1612"> cmovznzU64(&x30, x26, x19, x7);</span> <span class="line" id="L1613"> <span class="tok-kw">var</span> x31: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1614"> cmovznzU64(&x31, x26, x21, x9);</span> <span class="line" id="L1615"> <span class="tok-kw">var</span> x32: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1616"> cmovznzU64(&x32, x26, x23, x11);</span> <span class="line" id="L1617"> out1[<span class="tok-number">0</span>] = x27;</span> <span class="line" id="L1618"> out1[<span class="tok-number">1</span>] = x28;</span> <span class="line" id="L1619"> out1[<span class="tok-number">2</span>] = x29;</span> <span class="line" id="L1620"> out1[<span class="tok-number">3</span>] = x30;</span> <span class="line" id="L1621"> out1[<span class="tok-number">4</span>] = x31;</span> <span class="line" id="L1622"> out1[<span class="tok-number">5</span>] = x32;</span> <span class="line" id="L1623">}</span> <span class="line" id="L1624"></span> <span class="line" id="L1625"><span class="tok-comment">/// The function sub subtracts two field elements in the Montgomery domain.</span></span> <span class="line" id="L1626"><span class="tok-comment">///</span></span> <span class="line" id="L1627"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L1628"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L1629"><span class="tok-comment">/// 0 ≤ eval arg2 < m</span></span> <span class="line" id="L1630"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L1631"><span class="tok-comment">/// eval (from_montgomery out1) mod m = (eval (from_montgomery arg1) - eval (from_montgomery arg2)) mod m</span></span> <span class="line" id="L1632"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L1633"><span class="tok-comment">///</span></span> <span class="line" id="L1634"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">sub</span>(out1: MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldElement, arg2: MontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L1635"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L1636"></span> <span class="line" id="L1637"> <span class="tok-kw">var</span> x1: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1638"> <span class="tok-kw">var</span> x2: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1639"> subborrowxU64(&x1, &x2, <span class="tok-number">0x0</span>, (arg1[<span class="tok-number">0</span>]), (arg2[<span class="tok-number">0</span>]));</span> <span class="line" id="L1640"> <span class="tok-kw">var</span> x3: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1641"> <span class="tok-kw">var</span> x4: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1642"> subborrowxU64(&x3, &x4, x2, (arg1[<span class="tok-number">1</span>]), (arg2[<span class="tok-number">1</span>]));</span> <span class="line" id="L1643"> <span class="tok-kw">var</span> x5: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1644"> <span class="tok-kw">var</span> x6: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1645"> subborrowxU64(&x5, &x6, x4, (arg1[<span class="tok-number">2</span>]), (arg2[<span class="tok-number">2</span>]));</span> <span class="line" id="L1646"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1647"> <span class="tok-kw">var</span> x8: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1648"> subborrowxU64(&x7, &x8, x6, (arg1[<span class="tok-number">3</span>]), (arg2[<span class="tok-number">3</span>]));</span> <span class="line" id="L1649"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1650"> <span class="tok-kw">var</span> x10: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1651"> subborrowxU64(&x9, &x10, x8, (arg1[<span class="tok-number">4</span>]), (arg2[<span class="tok-number">4</span>]));</span> <span class="line" id="L1652"> <span class="tok-kw">var</span> x11: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1653"> <span class="tok-kw">var</span> x12: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1654"> subborrowxU64(&x11, &x12, x10, (arg1[<span class="tok-number">5</span>]), (arg2[<span class="tok-number">5</span>]));</span> <span class="line" id="L1655"> <span class="tok-kw">var</span> x13: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1656"> cmovznzU64(&x13, x12, <span class="tok-number">0x0</span>, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1657"> <span class="tok-kw">var</span> x14: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1658"> <span class="tok-kw">var</span> x15: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1659"> addcarryxU64(&x14, &x15, <span class="tok-number">0x0</span>, x1, (x13 & <span class="tok-number">0xffffffff</span>));</span> <span class="line" id="L1660"> <span class="tok-kw">var</span> x16: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1661"> <span class="tok-kw">var</span> x17: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1662"> addcarryxU64(&x16, &x17, x15, x3, (x13 & <span class="tok-number">0xffffffff00000000</span>));</span> <span class="line" id="L1663"> <span class="tok-kw">var</span> x18: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1664"> <span class="tok-kw">var</span> x19: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1665"> addcarryxU64(&x18, &x19, x17, x5, (x13 & <span class="tok-number">0xfffffffffffffffe</span>));</span> <span class="line" id="L1666"> <span class="tok-kw">var</span> x20: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1667"> <span class="tok-kw">var</span> x21: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1668"> addcarryxU64(&x20, &x21, x19, x7, x13);</span> <span class="line" id="L1669"> <span class="tok-kw">var</span> x22: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1670"> <span class="tok-kw">var</span> x23: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1671"> addcarryxU64(&x22, &x23, x21, x9, x13);</span> <span class="line" id="L1672"> <span class="tok-kw">var</span> x24: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1673"> <span class="tok-kw">var</span> x25: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1674"> addcarryxU64(&x24, &x25, x23, x11, x13);</span> <span class="line" id="L1675"> out1[<span class="tok-number">0</span>] = x14;</span> <span class="line" id="L1676"> out1[<span class="tok-number">1</span>] = x16;</span> <span class="line" id="L1677"> out1[<span class="tok-number">2</span>] = x18;</span> <span class="line" id="L1678"> out1[<span class="tok-number">3</span>] = x20;</span> <span class="line" id="L1679"> out1[<span class="tok-number">4</span>] = x22;</span> <span class="line" id="L1680"> out1[<span class="tok-number">5</span>] = x24;</span> <span class="line" id="L1681">}</span> <span class="line" id="L1682"></span> <span class="line" id="L1683"><span class="tok-comment">/// The function opp negates a field element in the Montgomery domain.</span></span> <span class="line" id="L1684"><span class="tok-comment">///</span></span> <span class="line" id="L1685"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L1686"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L1687"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L1688"><span class="tok-comment">/// eval (from_montgomery out1) mod m = -eval (from_montgomery arg1) mod m</span></span> <span class="line" id="L1689"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L1690"><span class="tok-comment">///</span></span> <span class="line" id="L1691"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">opp</span>(out1: MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L1692"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L1693"></span> <span class="line" id="L1694"> <span class="tok-kw">var</span> x1: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1695"> <span class="tok-kw">var</span> x2: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1696"> subborrowxU64(&x1, &x2, <span class="tok-number">0x0</span>, <span class="tok-number">0x0</span>, (arg1[<span class="tok-number">0</span>]));</span> <span class="line" id="L1697"> <span class="tok-kw">var</span> x3: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1698"> <span class="tok-kw">var</span> x4: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1699"> subborrowxU64(&x3, &x4, x2, <span class="tok-number">0x0</span>, (arg1[<span class="tok-number">1</span>]));</span> <span class="line" id="L1700"> <span class="tok-kw">var</span> x5: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1701"> <span class="tok-kw">var</span> x6: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1702"> subborrowxU64(&x5, &x6, x4, <span class="tok-number">0x0</span>, (arg1[<span class="tok-number">2</span>]));</span> <span class="line" id="L1703"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1704"> <span class="tok-kw">var</span> x8: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1705"> subborrowxU64(&x7, &x8, x6, <span class="tok-number">0x0</span>, (arg1[<span class="tok-number">3</span>]));</span> <span class="line" id="L1706"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1707"> <span class="tok-kw">var</span> x10: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1708"> subborrowxU64(&x9, &x10, x8, <span class="tok-number">0x0</span>, (arg1[<span class="tok-number">4</span>]));</span> <span class="line" id="L1709"> <span class="tok-kw">var</span> x11: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1710"> <span class="tok-kw">var</span> x12: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1711"> subborrowxU64(&x11, &x12, x10, <span class="tok-number">0x0</span>, (arg1[<span class="tok-number">5</span>]));</span> <span class="line" id="L1712"> <span class="tok-kw">var</span> x13: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1713"> cmovznzU64(&x13, x12, <span class="tok-number">0x0</span>, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1714"> <span class="tok-kw">var</span> x14: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1715"> <span class="tok-kw">var</span> x15: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1716"> addcarryxU64(&x14, &x15, <span class="tok-number">0x0</span>, x1, (x13 & <span class="tok-number">0xffffffff</span>));</span> <span class="line" id="L1717"> <span class="tok-kw">var</span> x16: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1718"> <span class="tok-kw">var</span> x17: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1719"> addcarryxU64(&x16, &x17, x15, x3, (x13 & <span class="tok-number">0xffffffff00000000</span>));</span> <span class="line" id="L1720"> <span class="tok-kw">var</span> x18: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1721"> <span class="tok-kw">var</span> x19: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1722"> addcarryxU64(&x18, &x19, x17, x5, (x13 & <span class="tok-number">0xfffffffffffffffe</span>));</span> <span class="line" id="L1723"> <span class="tok-kw">var</span> x20: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1724"> <span class="tok-kw">var</span> x21: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1725"> addcarryxU64(&x20, &x21, x19, x7, x13);</span> <span class="line" id="L1726"> <span class="tok-kw">var</span> x22: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1727"> <span class="tok-kw">var</span> x23: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1728"> addcarryxU64(&x22, &x23, x21, x9, x13);</span> <span class="line" id="L1729"> <span class="tok-kw">var</span> x24: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1730"> <span class="tok-kw">var</span> x25: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1731"> addcarryxU64(&x24, &x25, x23, x11, x13);</span> <span class="line" id="L1732"> out1[<span class="tok-number">0</span>] = x14;</span> <span class="line" id="L1733"> out1[<span class="tok-number">1</span>] = x16;</span> <span class="line" id="L1734"> out1[<span class="tok-number">2</span>] = x18;</span> <span class="line" id="L1735"> out1[<span class="tok-number">3</span>] = x20;</span> <span class="line" id="L1736"> out1[<span class="tok-number">4</span>] = x22;</span> <span class="line" id="L1737"> out1[<span class="tok-number">5</span>] = x24;</span> <span class="line" id="L1738">}</span> <span class="line" id="L1739"></span> <span class="line" id="L1740"><span class="tok-comment">/// The function fromMontgomery translates a field element out of the Montgomery domain.</span></span> <span class="line" id="L1741"><span class="tok-comment">///</span></span> <span class="line" id="L1742"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L1743"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L1744"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L1745"><span class="tok-comment">/// eval out1 mod m = (eval arg1 * ((2^64)⁻¹ mod m)^6) mod m</span></span> <span class="line" id="L1746"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L1747"><span class="tok-comment">///</span></span> <span class="line" id="L1748"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromMontgomery</span>(out1: NonMontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L1749"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L1750"></span> <span class="line" id="L1751"> <span class="tok-kw">const</span> x1 = (arg1[<span class="tok-number">0</span>]);</span> <span class="line" id="L1752"> <span class="tok-kw">var</span> x2: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1753"> <span class="tok-kw">var</span> x3: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1754"> mulxU64(&x2, &x3, x1, <span class="tok-number">0x100000001</span>);</span> <span class="line" id="L1755"> <span class="tok-kw">var</span> x4: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1756"> <span class="tok-kw">var</span> x5: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1757"> mulxU64(&x4, &x5, x2, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1758"> <span class="tok-kw">var</span> x6: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1759"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1760"> mulxU64(&x6, &x7, x2, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1761"> <span class="tok-kw">var</span> x8: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1762"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1763"> mulxU64(&x8, &x9, x2, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1764"> <span class="tok-kw">var</span> x10: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1765"> <span class="tok-kw">var</span> x11: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1766"> mulxU64(&x10, &x11, x2, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L1767"> <span class="tok-kw">var</span> x12: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1768"> <span class="tok-kw">var</span> x13: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1769"> mulxU64(&x12, &x13, x2, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L1770"> <span class="tok-kw">var</span> x14: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1771"> <span class="tok-kw">var</span> x15: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1772"> mulxU64(&x14, &x15, x2, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L1773"> <span class="tok-kw">var</span> x16: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1774"> <span class="tok-kw">var</span> x17: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1775"> addcarryxU64(&x16, &x17, <span class="tok-number">0x0</span>, x15, x12);</span> <span class="line" id="L1776"> <span class="tok-kw">var</span> x18: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1777"> <span class="tok-kw">var</span> x19: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1778"> addcarryxU64(&x18, &x19, x17, x13, x10);</span> <span class="line" id="L1779"> <span class="tok-kw">var</span> x20: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1780"> <span class="tok-kw">var</span> x21: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1781"> addcarryxU64(&x20, &x21, x19, x11, x8);</span> <span class="line" id="L1782"> <span class="tok-kw">var</span> x22: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1783"> <span class="tok-kw">var</span> x23: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1784"> addcarryxU64(&x22, &x23, x21, x9, x6);</span> <span class="line" id="L1785"> <span class="tok-kw">var</span> x24: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1786"> <span class="tok-kw">var</span> x25: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1787"> addcarryxU64(&x24, &x25, x23, x7, x4);</span> <span class="line" id="L1788"> <span class="tok-kw">var</span> x26: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1789"> <span class="tok-kw">var</span> x27: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1790"> addcarryxU64(&x26, &x27, <span class="tok-number">0x0</span>, x1, x14);</span> <span class="line" id="L1791"> <span class="tok-kw">var</span> x28: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1792"> <span class="tok-kw">var</span> x29: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1793"> addcarryxU64(&x28, &x29, x27, <span class="tok-number">0x0</span>, x16);</span> <span class="line" id="L1794"> <span class="tok-kw">var</span> x30: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1795"> <span class="tok-kw">var</span> x31: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1796"> addcarryxU64(&x30, &x31, x29, <span class="tok-number">0x0</span>, x18);</span> <span class="line" id="L1797"> <span class="tok-kw">var</span> x32: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1798"> <span class="tok-kw">var</span> x33: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1799"> addcarryxU64(&x32, &x33, x31, <span class="tok-number">0x0</span>, x20);</span> <span class="line" id="L1800"> <span class="tok-kw">var</span> x34: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1801"> <span class="tok-kw">var</span> x35: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1802"> addcarryxU64(&x34, &x35, x33, <span class="tok-number">0x0</span>, x22);</span> <span class="line" id="L1803"> <span class="tok-kw">var</span> x36: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1804"> <span class="tok-kw">var</span> x37: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1805"> addcarryxU64(&x36, &x37, x35, <span class="tok-number">0x0</span>, x24);</span> <span class="line" id="L1806"> <span class="tok-kw">var</span> x38: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1807"> <span class="tok-kw">var</span> x39: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1808"> addcarryxU64(&x38, &x39, x37, <span class="tok-number">0x0</span>, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x25) + x5));</span> <span class="line" id="L1809"> <span class="tok-kw">var</span> x40: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1810"> <span class="tok-kw">var</span> x41: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1811"> addcarryxU64(&x40, &x41, <span class="tok-number">0x0</span>, x28, (arg1[<span class="tok-number">1</span>]));</span> <span class="line" id="L1812"> <span class="tok-kw">var</span> x42: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1813"> <span class="tok-kw">var</span> x43: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1814"> addcarryxU64(&x42, &x43, x41, x30, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1815"> <span class="tok-kw">var</span> x44: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1816"> <span class="tok-kw">var</span> x45: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1817"> addcarryxU64(&x44, &x45, x43, x32, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1818"> <span class="tok-kw">var</span> x46: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1819"> <span class="tok-kw">var</span> x47: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1820"> addcarryxU64(&x46, &x47, x45, x34, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1821"> <span class="tok-kw">var</span> x48: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1822"> <span class="tok-kw">var</span> x49: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1823"> addcarryxU64(&x48, &x49, x47, x36, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1824"> <span class="tok-kw">var</span> x50: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1825"> <span class="tok-kw">var</span> x51: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1826"> addcarryxU64(&x50, &x51, x49, x38, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1827"> <span class="tok-kw">var</span> x52: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1828"> <span class="tok-kw">var</span> x53: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1829"> mulxU64(&x52, &x53, x40, <span class="tok-number">0x100000001</span>);</span> <span class="line" id="L1830"> <span class="tok-kw">var</span> x54: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1831"> <span class="tok-kw">var</span> x55: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1832"> mulxU64(&x54, &x55, x52, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1833"> <span class="tok-kw">var</span> x56: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1834"> <span class="tok-kw">var</span> x57: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1835"> mulxU64(&x56, &x57, x52, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1836"> <span class="tok-kw">var</span> x58: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1837"> <span class="tok-kw">var</span> x59: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1838"> mulxU64(&x58, &x59, x52, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1839"> <span class="tok-kw">var</span> x60: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1840"> <span class="tok-kw">var</span> x61: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1841"> mulxU64(&x60, &x61, x52, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L1842"> <span class="tok-kw">var</span> x62: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1843"> <span class="tok-kw">var</span> x63: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1844"> mulxU64(&x62, &x63, x52, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L1845"> <span class="tok-kw">var</span> x64: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1846"> <span class="tok-kw">var</span> x65: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1847"> mulxU64(&x64, &x65, x52, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L1848"> <span class="tok-kw">var</span> x66: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1849"> <span class="tok-kw">var</span> x67: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1850"> addcarryxU64(&x66, &x67, <span class="tok-number">0x0</span>, x65, x62);</span> <span class="line" id="L1851"> <span class="tok-kw">var</span> x68: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1852"> <span class="tok-kw">var</span> x69: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1853"> addcarryxU64(&x68, &x69, x67, x63, x60);</span> <span class="line" id="L1854"> <span class="tok-kw">var</span> x70: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1855"> <span class="tok-kw">var</span> x71: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1856"> addcarryxU64(&x70, &x71, x69, x61, x58);</span> <span class="line" id="L1857"> <span class="tok-kw">var</span> x72: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1858"> <span class="tok-kw">var</span> x73: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1859"> addcarryxU64(&x72, &x73, x71, x59, x56);</span> <span class="line" id="L1860"> <span class="tok-kw">var</span> x74: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1861"> <span class="tok-kw">var</span> x75: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1862"> addcarryxU64(&x74, &x75, x73, x57, x54);</span> <span class="line" id="L1863"> <span class="tok-kw">var</span> x76: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1864"> <span class="tok-kw">var</span> x77: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1865"> addcarryxU64(&x76, &x77, <span class="tok-number">0x0</span>, x40, x64);</span> <span class="line" id="L1866"> <span class="tok-kw">var</span> x78: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1867"> <span class="tok-kw">var</span> x79: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1868"> addcarryxU64(&x78, &x79, x77, x42, x66);</span> <span class="line" id="L1869"> <span class="tok-kw">var</span> x80: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1870"> <span class="tok-kw">var</span> x81: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1871"> addcarryxU64(&x80, &x81, x79, x44, x68);</span> <span class="line" id="L1872"> <span class="tok-kw">var</span> x82: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1873"> <span class="tok-kw">var</span> x83: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1874"> addcarryxU64(&x82, &x83, x81, x46, x70);</span> <span class="line" id="L1875"> <span class="tok-kw">var</span> x84: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1876"> <span class="tok-kw">var</span> x85: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1877"> addcarryxU64(&x84, &x85, x83, x48, x72);</span> <span class="line" id="L1878"> <span class="tok-kw">var</span> x86: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1879"> <span class="tok-kw">var</span> x87: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1880"> addcarryxU64(&x86, &x87, x85, x50, x74);</span> <span class="line" id="L1881"> <span class="tok-kw">var</span> x88: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1882"> <span class="tok-kw">var</span> x89: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1883"> addcarryxU64(&x88, &x89, x87, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x51) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x39)), (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x75) + x55));</span> <span class="line" id="L1884"> <span class="tok-kw">var</span> x90: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1885"> <span class="tok-kw">var</span> x91: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1886"> addcarryxU64(&x90, &x91, <span class="tok-number">0x0</span>, x78, (arg1[<span class="tok-number">2</span>]));</span> <span class="line" id="L1887"> <span class="tok-kw">var</span> x92: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1888"> <span class="tok-kw">var</span> x93: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1889"> addcarryxU64(&x92, &x93, x91, x80, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1890"> <span class="tok-kw">var</span> x94: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1891"> <span class="tok-kw">var</span> x95: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1892"> addcarryxU64(&x94, &x95, x93, x82, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1893"> <span class="tok-kw">var</span> x96: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1894"> <span class="tok-kw">var</span> x97: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1895"> addcarryxU64(&x96, &x97, x95, x84, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1896"> <span class="tok-kw">var</span> x98: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1897"> <span class="tok-kw">var</span> x99: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1898"> addcarryxU64(&x98, &x99, x97, x86, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1899"> <span class="tok-kw">var</span> x100: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1900"> <span class="tok-kw">var</span> x101: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1901"> addcarryxU64(&x100, &x101, x99, x88, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1902"> <span class="tok-kw">var</span> x102: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1903"> <span class="tok-kw">var</span> x103: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1904"> mulxU64(&x102, &x103, x90, <span class="tok-number">0x100000001</span>);</span> <span class="line" id="L1905"> <span class="tok-kw">var</span> x104: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1906"> <span class="tok-kw">var</span> x105: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1907"> mulxU64(&x104, &x105, x102, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1908"> <span class="tok-kw">var</span> x106: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1909"> <span class="tok-kw">var</span> x107: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1910"> mulxU64(&x106, &x107, x102, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1911"> <span class="tok-kw">var</span> x108: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1912"> <span class="tok-kw">var</span> x109: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1913"> mulxU64(&x108, &x109, x102, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1914"> <span class="tok-kw">var</span> x110: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1915"> <span class="tok-kw">var</span> x111: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1916"> mulxU64(&x110, &x111, x102, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L1917"> <span class="tok-kw">var</span> x112: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1918"> <span class="tok-kw">var</span> x113: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1919"> mulxU64(&x112, &x113, x102, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L1920"> <span class="tok-kw">var</span> x114: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1921"> <span class="tok-kw">var</span> x115: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1922"> mulxU64(&x114, &x115, x102, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L1923"> <span class="tok-kw">var</span> x116: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1924"> <span class="tok-kw">var</span> x117: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1925"> addcarryxU64(&x116, &x117, <span class="tok-number">0x0</span>, x115, x112);</span> <span class="line" id="L1926"> <span class="tok-kw">var</span> x118: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1927"> <span class="tok-kw">var</span> x119: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1928"> addcarryxU64(&x118, &x119, x117, x113, x110);</span> <span class="line" id="L1929"> <span class="tok-kw">var</span> x120: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1930"> <span class="tok-kw">var</span> x121: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1931"> addcarryxU64(&x120, &x121, x119, x111, x108);</span> <span class="line" id="L1932"> <span class="tok-kw">var</span> x122: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1933"> <span class="tok-kw">var</span> x123: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1934"> addcarryxU64(&x122, &x123, x121, x109, x106);</span> <span class="line" id="L1935"> <span class="tok-kw">var</span> x124: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1936"> <span class="tok-kw">var</span> x125: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1937"> addcarryxU64(&x124, &x125, x123, x107, x104);</span> <span class="line" id="L1938"> <span class="tok-kw">var</span> x126: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1939"> <span class="tok-kw">var</span> x127: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1940"> addcarryxU64(&x126, &x127, <span class="tok-number">0x0</span>, x90, x114);</span> <span class="line" id="L1941"> <span class="tok-kw">var</span> x128: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1942"> <span class="tok-kw">var</span> x129: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1943"> addcarryxU64(&x128, &x129, x127, x92, x116);</span> <span class="line" id="L1944"> <span class="tok-kw">var</span> x130: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1945"> <span class="tok-kw">var</span> x131: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1946"> addcarryxU64(&x130, &x131, x129, x94, x118);</span> <span class="line" id="L1947"> <span class="tok-kw">var</span> x132: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1948"> <span class="tok-kw">var</span> x133: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1949"> addcarryxU64(&x132, &x133, x131, x96, x120);</span> <span class="line" id="L1950"> <span class="tok-kw">var</span> x134: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1951"> <span class="tok-kw">var</span> x135: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1952"> addcarryxU64(&x134, &x135, x133, x98, x122);</span> <span class="line" id="L1953"> <span class="tok-kw">var</span> x136: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1954"> <span class="tok-kw">var</span> x137: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1955"> addcarryxU64(&x136, &x137, x135, x100, x124);</span> <span class="line" id="L1956"> <span class="tok-kw">var</span> x138: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1957"> <span class="tok-kw">var</span> x139: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1958"> addcarryxU64(&x138, &x139, x137, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x101) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x89)), (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x125) + x105));</span> <span class="line" id="L1959"> <span class="tok-kw">var</span> x140: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1960"> <span class="tok-kw">var</span> x141: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1961"> addcarryxU64(&x140, &x141, <span class="tok-number">0x0</span>, x128, (arg1[<span class="tok-number">3</span>]));</span> <span class="line" id="L1962"> <span class="tok-kw">var</span> x142: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1963"> <span class="tok-kw">var</span> x143: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1964"> addcarryxU64(&x142, &x143, x141, x130, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1965"> <span class="tok-kw">var</span> x144: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1966"> <span class="tok-kw">var</span> x145: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1967"> addcarryxU64(&x144, &x145, x143, x132, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1968"> <span class="tok-kw">var</span> x146: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1969"> <span class="tok-kw">var</span> x147: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1970"> addcarryxU64(&x146, &x147, x145, x134, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1971"> <span class="tok-kw">var</span> x148: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1972"> <span class="tok-kw">var</span> x149: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1973"> addcarryxU64(&x148, &x149, x147, x136, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1974"> <span class="tok-kw">var</span> x150: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1975"> <span class="tok-kw">var</span> x151: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1976"> addcarryxU64(&x150, &x151, x149, x138, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1977"> <span class="tok-kw">var</span> x152: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1978"> <span class="tok-kw">var</span> x153: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1979"> mulxU64(&x152, &x153, x140, <span class="tok-number">0x100000001</span>);</span> <span class="line" id="L1980"> <span class="tok-kw">var</span> x154: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1981"> <span class="tok-kw">var</span> x155: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1982"> mulxU64(&x154, &x155, x152, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1983"> <span class="tok-kw">var</span> x156: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1984"> <span class="tok-kw">var</span> x157: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1985"> mulxU64(&x156, &x157, x152, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1986"> <span class="tok-kw">var</span> x158: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1987"> <span class="tok-kw">var</span> x159: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1988"> mulxU64(&x158, &x159, x152, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1989"> <span class="tok-kw">var</span> x160: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1990"> <span class="tok-kw">var</span> x161: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1991"> mulxU64(&x160, &x161, x152, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L1992"> <span class="tok-kw">var</span> x162: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1993"> <span class="tok-kw">var</span> x163: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1994"> mulxU64(&x162, &x163, x152, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L1995"> <span class="tok-kw">var</span> x164: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1996"> <span class="tok-kw">var</span> x165: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1997"> mulxU64(&x164, &x165, x152, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L1998"> <span class="tok-kw">var</span> x166: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1999"> <span class="tok-kw">var</span> x167: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2000"> addcarryxU64(&x166, &x167, <span class="tok-number">0x0</span>, x165, x162);</span> <span class="line" id="L2001"> <span class="tok-kw">var</span> x168: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2002"> <span class="tok-kw">var</span> x169: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2003"> addcarryxU64(&x168, &x169, x167, x163, x160);</span> <span class="line" id="L2004"> <span class="tok-kw">var</span> x170: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2005"> <span class="tok-kw">var</span> x171: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2006"> addcarryxU64(&x170, &x171, x169, x161, x158);</span> <span class="line" id="L2007"> <span class="tok-kw">var</span> x172: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2008"> <span class="tok-kw">var</span> x173: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2009"> addcarryxU64(&x172, &x173, x171, x159, x156);</span> <span class="line" id="L2010"> <span class="tok-kw">var</span> x174: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2011"> <span class="tok-kw">var</span> x175: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2012"> addcarryxU64(&x174, &x175, x173, x157, x154);</span> <span class="line" id="L2013"> <span class="tok-kw">var</span> x176: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2014"> <span class="tok-kw">var</span> x177: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2015"> addcarryxU64(&x176, &x177, <span class="tok-number">0x0</span>, x140, x164);</span> <span class="line" id="L2016"> <span class="tok-kw">var</span> x178: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2017"> <span class="tok-kw">var</span> x179: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2018"> addcarryxU64(&x178, &x179, x177, x142, x166);</span> <span class="line" id="L2019"> <span class="tok-kw">var</span> x180: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2020"> <span class="tok-kw">var</span> x181: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2021"> addcarryxU64(&x180, &x181, x179, x144, x168);</span> <span class="line" id="L2022"> <span class="tok-kw">var</span> x182: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2023"> <span class="tok-kw">var</span> x183: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2024"> addcarryxU64(&x182, &x183, x181, x146, x170);</span> <span class="line" id="L2025"> <span class="tok-kw">var</span> x184: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2026"> <span class="tok-kw">var</span> x185: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2027"> addcarryxU64(&x184, &x185, x183, x148, x172);</span> <span class="line" id="L2028"> <span class="tok-kw">var</span> x186: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2029"> <span class="tok-kw">var</span> x187: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2030"> addcarryxU64(&x186, &x187, x185, x150, x174);</span> <span class="line" id="L2031"> <span class="tok-kw">var</span> x188: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2032"> <span class="tok-kw">var</span> x189: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2033"> addcarryxU64(&x188, &x189, x187, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x151) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x139)), (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x175) + x155));</span> <span class="line" id="L2034"> <span class="tok-kw">var</span> x190: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2035"> <span class="tok-kw">var</span> x191: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2036"> addcarryxU64(&x190, &x191, <span class="tok-number">0x0</span>, x178, (arg1[<span class="tok-number">4</span>]));</span> <span class="line" id="L2037"> <span class="tok-kw">var</span> x192: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2038"> <span class="tok-kw">var</span> x193: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2039"> addcarryxU64(&x192, &x193, x191, x180, <span class="tok-number">0x0</span>);</span> <span class="line" id="L2040"> <span class="tok-kw">var</span> x194: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2041"> <span class="tok-kw">var</span> x195: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2042"> addcarryxU64(&x194, &x195, x193, x182, <span class="tok-number">0x0</span>);</span> <span class="line" id="L2043"> <span class="tok-kw">var</span> x196: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2044"> <span class="tok-kw">var</span> x197: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2045"> addcarryxU64(&x196, &x197, x195, x184, <span class="tok-number">0x0</span>);</span> <span class="line" id="L2046"> <span class="tok-kw">var</span> x198: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2047"> <span class="tok-kw">var</span> x199: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2048"> addcarryxU64(&x198, &x199, x197, x186, <span class="tok-number">0x0</span>);</span> <span class="line" id="L2049"> <span class="tok-kw">var</span> x200: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2050"> <span class="tok-kw">var</span> x201: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2051"> addcarryxU64(&x200, &x201, x199, x188, <span class="tok-number">0x0</span>);</span> <span class="line" id="L2052"> <span class="tok-kw">var</span> x202: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2053"> <span class="tok-kw">var</span> x203: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2054"> mulxU64(&x202, &x203, x190, <span class="tok-number">0x100000001</span>);</span> <span class="line" id="L2055"> <span class="tok-kw">var</span> x204: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2056"> <span class="tok-kw">var</span> x205: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2057"> mulxU64(&x204, &x205, x202, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2058"> <span class="tok-kw">var</span> x206: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2059"> <span class="tok-kw">var</span> x207: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2060"> mulxU64(&x206, &x207, x202, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2061"> <span class="tok-kw">var</span> x208: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2062"> <span class="tok-kw">var</span> x209: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2063"> mulxU64(&x208, &x209, x202, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2064"> <span class="tok-kw">var</span> x210: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2065"> <span class="tok-kw">var</span> x211: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2066"> mulxU64(&x210, &x211, x202, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L2067"> <span class="tok-kw">var</span> x212: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2068"> <span class="tok-kw">var</span> x213: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2069"> mulxU64(&x212, &x213, x202, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L2070"> <span class="tok-kw">var</span> x214: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2071"> <span class="tok-kw">var</span> x215: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2072"> mulxU64(&x214, &x215, x202, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L2073"> <span class="tok-kw">var</span> x216: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2074"> <span class="tok-kw">var</span> x217: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2075"> addcarryxU64(&x216, &x217, <span class="tok-number">0x0</span>, x215, x212);</span> <span class="line" id="L2076"> <span class="tok-kw">var</span> x218: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2077"> <span class="tok-kw">var</span> x219: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2078"> addcarryxU64(&x218, &x219, x217, x213, x210);</span> <span class="line" id="L2079"> <span class="tok-kw">var</span> x220: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2080"> <span class="tok-kw">var</span> x221: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2081"> addcarryxU64(&x220, &x221, x219, x211, x208);</span> <span class="line" id="L2082"> <span class="tok-kw">var</span> x222: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2083"> <span class="tok-kw">var</span> x223: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2084"> addcarryxU64(&x222, &x223, x221, x209, x206);</span> <span class="line" id="L2085"> <span class="tok-kw">var</span> x224: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2086"> <span class="tok-kw">var</span> x225: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2087"> addcarryxU64(&x224, &x225, x223, x207, x204);</span> <span class="line" id="L2088"> <span class="tok-kw">var</span> x226: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2089"> <span class="tok-kw">var</span> x227: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2090"> addcarryxU64(&x226, &x227, <span class="tok-number">0x0</span>, x190, x214);</span> <span class="line" id="L2091"> <span class="tok-kw">var</span> x228: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2092"> <span class="tok-kw">var</span> x229: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2093"> addcarryxU64(&x228, &x229, x227, x192, x216);</span> <span class="line" id="L2094"> <span class="tok-kw">var</span> x230: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2095"> <span class="tok-kw">var</span> x231: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2096"> addcarryxU64(&x230, &x231, x229, x194, x218);</span> <span class="line" id="L2097"> <span class="tok-kw">var</span> x232: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2098"> <span class="tok-kw">var</span> x233: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2099"> addcarryxU64(&x232, &x233, x231, x196, x220);</span> <span class="line" id="L2100"> <span class="tok-kw">var</span> x234: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2101"> <span class="tok-kw">var</span> x235: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2102"> addcarryxU64(&x234, &x235, x233, x198, x222);</span> <span class="line" id="L2103"> <span class="tok-kw">var</span> x236: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2104"> <span class="tok-kw">var</span> x237: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2105"> addcarryxU64(&x236, &x237, x235, x200, x224);</span> <span class="line" id="L2106"> <span class="tok-kw">var</span> x238: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2107"> <span class="tok-kw">var</span> x239: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2108"> addcarryxU64(&x238, &x239, x237, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x201) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x189)), (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x225) + x205));</span> <span class="line" id="L2109"> <span class="tok-kw">var</span> x240: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2110"> <span class="tok-kw">var</span> x241: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2111"> addcarryxU64(&x240, &x241, <span class="tok-number">0x0</span>, x228, (arg1[<span class="tok-number">5</span>]));</span> <span class="line" id="L2112"> <span class="tok-kw">var</span> x242: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2113"> <span class="tok-kw">var</span> x243: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2114"> addcarryxU64(&x242, &x243, x241, x230, <span class="tok-number">0x0</span>);</span> <span class="line" id="L2115"> <span class="tok-kw">var</span> x244: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2116"> <span class="tok-kw">var</span> x245: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2117"> addcarryxU64(&x244, &x245, x243, x232, <span class="tok-number">0x0</span>);</span> <span class="line" id="L2118"> <span class="tok-kw">var</span> x246: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2119"> <span class="tok-kw">var</span> x247: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2120"> addcarryxU64(&x246, &x247, x245, x234, <span class="tok-number">0x0</span>);</span> <span class="line" id="L2121"> <span class="tok-kw">var</span> x248: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2122"> <span class="tok-kw">var</span> x249: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2123"> addcarryxU64(&x248, &x249, x247, x236, <span class="tok-number">0x0</span>);</span> <span class="line" id="L2124"> <span class="tok-kw">var</span> x250: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2125"> <span class="tok-kw">var</span> x251: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2126"> addcarryxU64(&x250, &x251, x249, x238, <span class="tok-number">0x0</span>);</span> <span class="line" id="L2127"> <span class="tok-kw">var</span> x252: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2128"> <span class="tok-kw">var</span> x253: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2129"> mulxU64(&x252, &x253, x240, <span class="tok-number">0x100000001</span>);</span> <span class="line" id="L2130"> <span class="tok-kw">var</span> x254: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2131"> <span class="tok-kw">var</span> x255: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2132"> mulxU64(&x254, &x255, x252, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2133"> <span class="tok-kw">var</span> x256: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2134"> <span class="tok-kw">var</span> x257: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2135"> mulxU64(&x256, &x257, x252, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2136"> <span class="tok-kw">var</span> x258: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2137"> <span class="tok-kw">var</span> x259: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2138"> mulxU64(&x258, &x259, x252, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2139"> <span class="tok-kw">var</span> x260: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2140"> <span class="tok-kw">var</span> x261: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2141"> mulxU64(&x260, &x261, x252, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L2142"> <span class="tok-kw">var</span> x262: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2143"> <span class="tok-kw">var</span> x263: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2144"> mulxU64(&x262, &x263, x252, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L2145"> <span class="tok-kw">var</span> x264: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2146"> <span class="tok-kw">var</span> x265: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2147"> mulxU64(&x264, &x265, x252, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L2148"> <span class="tok-kw">var</span> x266: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2149"> <span class="tok-kw">var</span> x267: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2150"> addcarryxU64(&x266, &x267, <span class="tok-number">0x0</span>, x265, x262);</span> <span class="line" id="L2151"> <span class="tok-kw">var</span> x268: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2152"> <span class="tok-kw">var</span> x269: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2153"> addcarryxU64(&x268, &x269, x267, x263, x260);</span> <span class="line" id="L2154"> <span class="tok-kw">var</span> x270: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2155"> <span class="tok-kw">var</span> x271: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2156"> addcarryxU64(&x270, &x271, x269, x261, x258);</span> <span class="line" id="L2157"> <span class="tok-kw">var</span> x272: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2158"> <span class="tok-kw">var</span> x273: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2159"> addcarryxU64(&x272, &x273, x271, x259, x256);</span> <span class="line" id="L2160"> <span class="tok-kw">var</span> x274: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2161"> <span class="tok-kw">var</span> x275: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2162"> addcarryxU64(&x274, &x275, x273, x257, x254);</span> <span class="line" id="L2163"> <span class="tok-kw">var</span> x276: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2164"> <span class="tok-kw">var</span> x277: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2165"> addcarryxU64(&x276, &x277, <span class="tok-number">0x0</span>, x240, x264);</span> <span class="line" id="L2166"> <span class="tok-kw">var</span> x278: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2167"> <span class="tok-kw">var</span> x279: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2168"> addcarryxU64(&x278, &x279, x277, x242, x266);</span> <span class="line" id="L2169"> <span class="tok-kw">var</span> x280: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2170"> <span class="tok-kw">var</span> x281: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2171"> addcarryxU64(&x280, &x281, x279, x244, x268);</span> <span class="line" id="L2172"> <span class="tok-kw">var</span> x282: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2173"> <span class="tok-kw">var</span> x283: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2174"> addcarryxU64(&x282, &x283, x281, x246, x270);</span> <span class="line" id="L2175"> <span class="tok-kw">var</span> x284: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2176"> <span class="tok-kw">var</span> x285: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2177"> addcarryxU64(&x284, &x285, x283, x248, x272);</span> <span class="line" id="L2178"> <span class="tok-kw">var</span> x286: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2179"> <span class="tok-kw">var</span> x287: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2180"> addcarryxU64(&x286, &x287, x285, x250, x274);</span> <span class="line" id="L2181"> <span class="tok-kw">var</span> x288: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2182"> <span class="tok-kw">var</span> x289: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2183"> addcarryxU64(&x288, &x289, x287, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x251) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x239)), (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x275) + x255));</span> <span class="line" id="L2184"> <span class="tok-kw">var</span> x290: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2185"> <span class="tok-kw">var</span> x291: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2186"> subborrowxU64(&x290, &x291, <span class="tok-number">0x0</span>, x278, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L2187"> <span class="tok-kw">var</span> x292: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2188"> <span class="tok-kw">var</span> x293: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2189"> subborrowxU64(&x292, &x293, x291, x280, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L2190"> <span class="tok-kw">var</span> x294: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2191"> <span class="tok-kw">var</span> x295: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2192"> subborrowxU64(&x294, &x295, x293, x282, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L2193"> <span class="tok-kw">var</span> x296: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2194"> <span class="tok-kw">var</span> x297: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2195"> subborrowxU64(&x296, &x297, x295, x284, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2196"> <span class="tok-kw">var</span> x298: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2197"> <span class="tok-kw">var</span> x299: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2198"> subborrowxU64(&x298, &x299, x297, x286, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2199"> <span class="tok-kw">var</span> x300: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2200"> <span class="tok-kw">var</span> x301: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2201"> subborrowxU64(&x300, &x301, x299, x288, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2202"> <span class="tok-kw">var</span> x302: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2203"> <span class="tok-kw">var</span> x303: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2204"> subborrowxU64(&x302, &x303, x301, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x289), <span class="tok-number">0x0</span>);</span> <span class="line" id="L2205"> <span class="tok-kw">var</span> x304: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2206"> cmovznzU64(&x304, x303, x290, x278);</span> <span class="line" id="L2207"> <span class="tok-kw">var</span> x305: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2208"> cmovznzU64(&x305, x303, x292, x280);</span> <span class="line" id="L2209"> <span class="tok-kw">var</span> x306: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2210"> cmovznzU64(&x306, x303, x294, x282);</span> <span class="line" id="L2211"> <span class="tok-kw">var</span> x307: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2212"> cmovznzU64(&x307, x303, x296, x284);</span> <span class="line" id="L2213"> <span class="tok-kw">var</span> x308: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2214"> cmovznzU64(&x308, x303, x298, x286);</span> <span class="line" id="L2215"> <span class="tok-kw">var</span> x309: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2216"> cmovznzU64(&x309, x303, x300, x288);</span> <span class="line" id="L2217"> out1[<span class="tok-number">0</span>] = x304;</span> <span class="line" id="L2218"> out1[<span class="tok-number">1</span>] = x305;</span> <span class="line" id="L2219"> out1[<span class="tok-number">2</span>] = x306;</span> <span class="line" id="L2220"> out1[<span class="tok-number">3</span>] = x307;</span> <span class="line" id="L2221"> out1[<span class="tok-number">4</span>] = x308;</span> <span class="line" id="L2222"> out1[<span class="tok-number">5</span>] = x309;</span> <span class="line" id="L2223">}</span> <span class="line" id="L2224"></span> <span class="line" id="L2225"><span class="tok-comment">/// The function toMontgomery translates a field element into the Montgomery domain.</span></span> <span class="line" id="L2226"><span class="tok-comment">///</span></span> <span class="line" id="L2227"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L2228"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L2229"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L2230"><span class="tok-comment">/// eval (from_montgomery out1) mod m = eval arg1 mod m</span></span> <span class="line" id="L2231"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L2232"><span class="tok-comment">///</span></span> <span class="line" id="L2233"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toMontgomery</span>(out1: MontgomeryDomainFieldElement, arg1: NonMontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L2234"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L2235"></span> <span class="line" id="L2236"> <span class="tok-kw">const</span> x1 = (arg1[<span class="tok-number">1</span>]);</span> <span class="line" id="L2237"> <span class="tok-kw">const</span> x2 = (arg1[<span class="tok-number">2</span>]);</span> <span class="line" id="L2238"> <span class="tok-kw">const</span> x3 = (arg1[<span class="tok-number">3</span>]);</span> <span class="line" id="L2239"> <span class="tok-kw">const</span> x4 = (arg1[<span class="tok-number">4</span>]);</span> <span class="line" id="L2240"> <span class="tok-kw">const</span> x5 = (arg1[<span class="tok-number">5</span>]);</span> <span class="line" id="L2241"> <span class="tok-kw">const</span> x6 = (arg1[<span class="tok-number">0</span>]);</span> <span class="line" id="L2242"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2243"> <span class="tok-kw">var</span> x8: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2244"> mulxU64(&x7, &x8, x6, <span class="tok-number">0x200000000</span>);</span> <span class="line" id="L2245"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2246"> <span class="tok-kw">var</span> x10: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2247"> mulxU64(&x9, &x10, x6, <span class="tok-number">0xfffffffe00000000</span>);</span> <span class="line" id="L2248"> <span class="tok-kw">var</span> x11: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2249"> <span class="tok-kw">var</span> x12: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2250"> mulxU64(&x11, &x12, x6, <span class="tok-number">0x200000000</span>);</span> <span class="line" id="L2251"> <span class="tok-kw">var</span> x13: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2252"> <span class="tok-kw">var</span> x14: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2253"> mulxU64(&x13, &x14, x6, <span class="tok-number">0xfffffffe00000001</span>);</span> <span class="line" id="L2254"> <span class="tok-kw">var</span> x15: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2255"> <span class="tok-kw">var</span> x16: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2256"> addcarryxU64(&x15, &x16, <span class="tok-number">0x0</span>, x14, x11);</span> <span class="line" id="L2257"> <span class="tok-kw">var</span> x17: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2258"> <span class="tok-kw">var</span> x18: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2259"> addcarryxU64(&x17, &x18, x16, x12, x9);</span> <span class="line" id="L2260"> <span class="tok-kw">var</span> x19: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2261"> <span class="tok-kw">var</span> x20: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2262"> addcarryxU64(&x19, &x20, x18, x10, x7);</span> <span class="line" id="L2263"> <span class="tok-kw">var</span> x21: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2264"> <span class="tok-kw">var</span> x22: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2265"> addcarryxU64(&x21, &x22, x20, x8, x6);</span> <span class="line" id="L2266"> <span class="tok-kw">var</span> x23: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2267"> <span class="tok-kw">var</span> x24: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2268"> mulxU64(&x23, &x24, x13, <span class="tok-number">0x100000001</span>);</span> <span class="line" id="L2269"> <span class="tok-kw">var</span> x25: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2270"> <span class="tok-kw">var</span> x26: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2271"> mulxU64(&x25, &x26, x23, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2272"> <span class="tok-kw">var</span> x27: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2273"> <span class="tok-kw">var</span> x28: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2274"> mulxU64(&x27, &x28, x23, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2275"> <span class="tok-kw">var</span> x29: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2276"> <span class="tok-kw">var</span> x30: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2277"> mulxU64(&x29, &x30, x23, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2278"> <span class="tok-kw">var</span> x31: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2279"> <span class="tok-kw">var</span> x32: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2280"> mulxU64(&x31, &x32, x23, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L2281"> <span class="tok-kw">var</span> x33: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2282"> <span class="tok-kw">var</span> x34: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2283"> mulxU64(&x33, &x34, x23, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L2284"> <span class="tok-kw">var</span> x35: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2285"> <span class="tok-kw">var</span> x36: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2286"> mulxU64(&x35, &x36, x23, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L2287"> <span class="tok-kw">var</span> x37: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2288"> <span class="tok-kw">var</span> x38: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2289"> addcarryxU64(&x37, &x38, <span class="tok-number">0x0</span>, x36, x33);</span> <span class="line" id="L2290"> <span class="tok-kw">var</span> x39: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2291"> <span class="tok-kw">var</span> x40: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2292"> addcarryxU64(&x39, &x40, x38, x34, x31);</span> <span class="line" id="L2293"> <span class="tok-kw">var</span> x41: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2294"> <span class="tok-kw">var</span> x42: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2295"> addcarryxU64(&x41, &x42, x40, x32, x29);</span> <span class="line" id="L2296"> <span class="tok-kw">var</span> x43: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2297"> <span class="tok-kw">var</span> x44: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2298"> addcarryxU64(&x43, &x44, x42, x30, x27);</span> <span class="line" id="L2299"> <span class="tok-kw">var</span> x45: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2300"> <span class="tok-kw">var</span> x46: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2301"> addcarryxU64(&x45, &x46, x44, x28, x25);</span> <span class="line" id="L2302"> <span class="tok-kw">var</span> x47: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2303"> <span class="tok-kw">var</span> x48: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2304"> addcarryxU64(&x47, &x48, <span class="tok-number">0x0</span>, x13, x35);</span> <span class="line" id="L2305"> <span class="tok-kw">var</span> x49: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2306"> <span class="tok-kw">var</span> x50: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2307"> addcarryxU64(&x49, &x50, x48, x15, x37);</span> <span class="line" id="L2308"> <span class="tok-kw">var</span> x51: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2309"> <span class="tok-kw">var</span> x52: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2310"> addcarryxU64(&x51, &x52, x50, x17, x39);</span> <span class="line" id="L2311"> <span class="tok-kw">var</span> x53: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2312"> <span class="tok-kw">var</span> x54: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2313"> addcarryxU64(&x53, &x54, x52, x19, x41);</span> <span class="line" id="L2314"> <span class="tok-kw">var</span> x55: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2315"> <span class="tok-kw">var</span> x56: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2316"> addcarryxU64(&x55, &x56, x54, x21, x43);</span> <span class="line" id="L2317"> <span class="tok-kw">var</span> x57: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2318"> <span class="tok-kw">var</span> x58: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2319"> addcarryxU64(&x57, &x58, x56, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x22), x45);</span> <span class="line" id="L2320"> <span class="tok-kw">var</span> x59: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2321"> <span class="tok-kw">var</span> x60: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2322"> addcarryxU64(&x59, &x60, x58, <span class="tok-number">0x0</span>, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x46) + x26));</span> <span class="line" id="L2323"> <span class="tok-kw">var</span> x61: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2324"> <span class="tok-kw">var</span> x62: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2325"> mulxU64(&x61, &x62, x1, <span class="tok-number">0x200000000</span>);</span> <span class="line" id="L2326"> <span class="tok-kw">var</span> x63: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2327"> <span class="tok-kw">var</span> x64: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2328"> mulxU64(&x63, &x64, x1, <span class="tok-number">0xfffffffe00000000</span>);</span> <span class="line" id="L2329"> <span class="tok-kw">var</span> x65: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2330"> <span class="tok-kw">var</span> x66: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2331"> mulxU64(&x65, &x66, x1, <span class="tok-number">0x200000000</span>);</span> <span class="line" id="L2332"> <span class="tok-kw">var</span> x67: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2333"> <span class="tok-kw">var</span> x68: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2334"> mulxU64(&x67, &x68, x1, <span class="tok-number">0xfffffffe00000001</span>);</span> <span class="line" id="L2335"> <span class="tok-kw">var</span> x69: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2336"> <span class="tok-kw">var</span> x70: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2337"> addcarryxU64(&x69, &x70, <span class="tok-number">0x0</span>, x68, x65);</span> <span class="line" id="L2338"> <span class="tok-kw">var</span> x71: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2339"> <span class="tok-kw">var</span> x72: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2340"> addcarryxU64(&x71, &x72, x70, x66, x63);</span> <span class="line" id="L2341"> <span class="tok-kw">var</span> x73: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2342"> <span class="tok-kw">var</span> x74: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2343"> addcarryxU64(&x73, &x74, x72, x64, x61);</span> <span class="line" id="L2344"> <span class="tok-kw">var</span> x75: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2345"> <span class="tok-kw">var</span> x76: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2346"> addcarryxU64(&x75, &x76, x74, x62, x1);</span> <span class="line" id="L2347"> <span class="tok-kw">var</span> x77: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2348"> <span class="tok-kw">var</span> x78: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2349"> addcarryxU64(&x77, &x78, <span class="tok-number">0x0</span>, x49, x67);</span> <span class="line" id="L2350"> <span class="tok-kw">var</span> x79: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2351"> <span class="tok-kw">var</span> x80: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2352"> addcarryxU64(&x79, &x80, x78, x51, x69);</span> <span class="line" id="L2353"> <span class="tok-kw">var</span> x81: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2354"> <span class="tok-kw">var</span> x82: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2355"> addcarryxU64(&x81, &x82, x80, x53, x71);</span> <span class="line" id="L2356"> <span class="tok-kw">var</span> x83: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2357"> <span class="tok-kw">var</span> x84: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2358"> addcarryxU64(&x83, &x84, x82, x55, x73);</span> <span class="line" id="L2359"> <span class="tok-kw">var</span> x85: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2360"> <span class="tok-kw">var</span> x86: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2361"> addcarryxU64(&x85, &x86, x84, x57, x75);</span> <span class="line" id="L2362"> <span class="tok-kw">var</span> x87: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2363"> <span class="tok-kw">var</span> x88: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2364"> addcarryxU64(&x87, &x88, x86, x59, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x76));</span> <span class="line" id="L2365"> <span class="tok-kw">var</span> x89: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2366"> <span class="tok-kw">var</span> x90: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2367"> mulxU64(&x89, &x90, x77, <span class="tok-number">0x100000001</span>);</span> <span class="line" id="L2368"> <span class="tok-kw">var</span> x91: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2369"> <span class="tok-kw">var</span> x92: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2370"> mulxU64(&x91, &x92, x89, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2371"> <span class="tok-kw">var</span> x93: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2372"> <span class="tok-kw">var</span> x94: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2373"> mulxU64(&x93, &x94, x89, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2374"> <span class="tok-kw">var</span> x95: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2375"> <span class="tok-kw">var</span> x96: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2376"> mulxU64(&x95, &x96, x89, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2377"> <span class="tok-kw">var</span> x97: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2378"> <span class="tok-kw">var</span> x98: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2379"> mulxU64(&x97, &x98, x89, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L2380"> <span class="tok-kw">var</span> x99: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2381"> <span class="tok-kw">var</span> x100: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2382"> mulxU64(&x99, &x100, x89, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L2383"> <span class="tok-kw">var</span> x101: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2384"> <span class="tok-kw">var</span> x102: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2385"> mulxU64(&x101, &x102, x89, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L2386"> <span class="tok-kw">var</span> x103: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2387"> <span class="tok-kw">var</span> x104: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2388"> addcarryxU64(&x103, &x104, <span class="tok-number">0x0</span>, x102, x99);</span> <span class="line" id="L2389"> <span class="tok-kw">var</span> x105: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2390"> <span class="tok-kw">var</span> x106: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2391"> addcarryxU64(&x105, &x106, x104, x100, x97);</span> <span class="line" id="L2392"> <span class="tok-kw">var</span> x107: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2393"> <span class="tok-kw">var</span> x108: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2394"> addcarryxU64(&x107, &x108, x106, x98, x95);</span> <span class="line" id="L2395"> <span class="tok-kw">var</span> x109: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2396"> <span class="tok-kw">var</span> x110: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2397"> addcarryxU64(&x109, &x110, x108, x96, x93);</span> <span class="line" id="L2398"> <span class="tok-kw">var</span> x111: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2399"> <span class="tok-kw">var</span> x112: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2400"> addcarryxU64(&x111, &x112, x110, x94, x91);</span> <span class="line" id="L2401"> <span class="tok-kw">var</span> x113: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2402"> <span class="tok-kw">var</span> x114: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2403"> addcarryxU64(&x113, &x114, <span class="tok-number">0x0</span>, x77, x101);</span> <span class="line" id="L2404"> <span class="tok-kw">var</span> x115: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2405"> <span class="tok-kw">var</span> x116: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2406"> addcarryxU64(&x115, &x116, x114, x79, x103);</span> <span class="line" id="L2407"> <span class="tok-kw">var</span> x117: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2408"> <span class="tok-kw">var</span> x118: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2409"> addcarryxU64(&x117, &x118, x116, x81, x105);</span> <span class="line" id="L2410"> <span class="tok-kw">var</span> x119: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2411"> <span class="tok-kw">var</span> x120: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2412"> addcarryxU64(&x119, &x120, x118, x83, x107);</span> <span class="line" id="L2413"> <span class="tok-kw">var</span> x121: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2414"> <span class="tok-kw">var</span> x122: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2415"> addcarryxU64(&x121, &x122, x120, x85, x109);</span> <span class="line" id="L2416"> <span class="tok-kw">var</span> x123: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2417"> <span class="tok-kw">var</span> x124: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2418"> addcarryxU64(&x123, &x124, x122, x87, x111);</span> <span class="line" id="L2419"> <span class="tok-kw">var</span> x125: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2420"> <span class="tok-kw">var</span> x126: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2421"> addcarryxU64(&x125, &x126, x124, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x88) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x60)), (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x112) + x92));</span> <span class="line" id="L2422"> <span class="tok-kw">var</span> x127: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2423"> <span class="tok-kw">var</span> x128: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2424"> mulxU64(&x127, &x128, x2, <span class="tok-number">0x200000000</span>);</span> <span class="line" id="L2425"> <span class="tok-kw">var</span> x129: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2426"> <span class="tok-kw">var</span> x130: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2427"> mulxU64(&x129, &x130, x2, <span class="tok-number">0xfffffffe00000000</span>);</span> <span class="line" id="L2428"> <span class="tok-kw">var</span> x131: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2429"> <span class="tok-kw">var</span> x132: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2430"> mulxU64(&x131, &x132, x2, <span class="tok-number">0x200000000</span>);</span> <span class="line" id="L2431"> <span class="tok-kw">var</span> x133: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2432"> <span class="tok-kw">var</span> x134: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2433"> mulxU64(&x133, &x134, x2, <span class="tok-number">0xfffffffe00000001</span>);</span> <span class="line" id="L2434"> <span class="tok-kw">var</span> x135: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2435"> <span class="tok-kw">var</span> x136: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2436"> addcarryxU64(&x135, &x136, <span class="tok-number">0x0</span>, x134, x131);</span> <span class="line" id="L2437"> <span class="tok-kw">var</span> x137: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2438"> <span class="tok-kw">var</span> x138: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2439"> addcarryxU64(&x137, &x138, x136, x132, x129);</span> <span class="line" id="L2440"> <span class="tok-kw">var</span> x139: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2441"> <span class="tok-kw">var</span> x140: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2442"> addcarryxU64(&x139, &x140, x138, x130, x127);</span> <span class="line" id="L2443"> <span class="tok-kw">var</span> x141: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2444"> <span class="tok-kw">var</span> x142: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2445"> addcarryxU64(&x141, &x142, x140, x128, x2);</span> <span class="line" id="L2446"> <span class="tok-kw">var</span> x143: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2447"> <span class="tok-kw">var</span> x144: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2448"> addcarryxU64(&x143, &x144, <span class="tok-number">0x0</span>, x115, x133);</span> <span class="line" id="L2449"> <span class="tok-kw">var</span> x145: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2450"> <span class="tok-kw">var</span> x146: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2451"> addcarryxU64(&x145, &x146, x144, x117, x135);</span> <span class="line" id="L2452"> <span class="tok-kw">var</span> x147: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2453"> <span class="tok-kw">var</span> x148: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2454"> addcarryxU64(&x147, &x148, x146, x119, x137);</span> <span class="line" id="L2455"> <span class="tok-kw">var</span> x149: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2456"> <span class="tok-kw">var</span> x150: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2457"> addcarryxU64(&x149, &x150, x148, x121, x139);</span> <span class="line" id="L2458"> <span class="tok-kw">var</span> x151: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2459"> <span class="tok-kw">var</span> x152: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2460"> addcarryxU64(&x151, &x152, x150, x123, x141);</span> <span class="line" id="L2461"> <span class="tok-kw">var</span> x153: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2462"> <span class="tok-kw">var</span> x154: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2463"> addcarryxU64(&x153, &x154, x152, x125, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x142));</span> <span class="line" id="L2464"> <span class="tok-kw">var</span> x155: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2465"> <span class="tok-kw">var</span> x156: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2466"> mulxU64(&x155, &x156, x143, <span class="tok-number">0x100000001</span>);</span> <span class="line" id="L2467"> <span class="tok-kw">var</span> x157: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2468"> <span class="tok-kw">var</span> x158: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2469"> mulxU64(&x157, &x158, x155, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2470"> <span class="tok-kw">var</span> x159: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2471"> <span class="tok-kw">var</span> x160: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2472"> mulxU64(&x159, &x160, x155, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2473"> <span class="tok-kw">var</span> x161: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2474"> <span class="tok-kw">var</span> x162: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2475"> mulxU64(&x161, &x162, x155, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2476"> <span class="tok-kw">var</span> x163: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2477"> <span class="tok-kw">var</span> x164: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2478"> mulxU64(&x163, &x164, x155, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L2479"> <span class="tok-kw">var</span> x165: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2480"> <span class="tok-kw">var</span> x166: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2481"> mulxU64(&x165, &x166, x155, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L2482"> <span class="tok-kw">var</span> x167: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2483"> <span class="tok-kw">var</span> x168: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2484"> mulxU64(&x167, &x168, x155, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L2485"> <span class="tok-kw">var</span> x169: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2486"> <span class="tok-kw">var</span> x170: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2487"> addcarryxU64(&x169, &x170, <span class="tok-number">0x0</span>, x168, x165);</span> <span class="line" id="L2488"> <span class="tok-kw">var</span> x171: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2489"> <span class="tok-kw">var</span> x172: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2490"> addcarryxU64(&x171, &x172, x170, x166, x163);</span> <span class="line" id="L2491"> <span class="tok-kw">var</span> x173: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2492"> <span class="tok-kw">var</span> x174: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2493"> addcarryxU64(&x173, &x174, x172, x164, x161);</span> <span class="line" id="L2494"> <span class="tok-kw">var</span> x175: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2495"> <span class="tok-kw">var</span> x176: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2496"> addcarryxU64(&x175, &x176, x174, x162, x159);</span> <span class="line" id="L2497"> <span class="tok-kw">var</span> x177: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2498"> <span class="tok-kw">var</span> x178: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2499"> addcarryxU64(&x177, &x178, x176, x160, x157);</span> <span class="line" id="L2500"> <span class="tok-kw">var</span> x179: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2501"> <span class="tok-kw">var</span> x180: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2502"> addcarryxU64(&x179, &x180, <span class="tok-number">0x0</span>, x143, x167);</span> <span class="line" id="L2503"> <span class="tok-kw">var</span> x181: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2504"> <span class="tok-kw">var</span> x182: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2505"> addcarryxU64(&x181, &x182, x180, x145, x169);</span> <span class="line" id="L2506"> <span class="tok-kw">var</span> x183: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2507"> <span class="tok-kw">var</span> x184: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2508"> addcarryxU64(&x183, &x184, x182, x147, x171);</span> <span class="line" id="L2509"> <span class="tok-kw">var</span> x185: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2510"> <span class="tok-kw">var</span> x186: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2511"> addcarryxU64(&x185, &x186, x184, x149, x173);</span> <span class="line" id="L2512"> <span class="tok-kw">var</span> x187: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2513"> <span class="tok-kw">var</span> x188: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2514"> addcarryxU64(&x187, &x188, x186, x151, x175);</span> <span class="line" id="L2515"> <span class="tok-kw">var</span> x189: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2516"> <span class="tok-kw">var</span> x190: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2517"> addcarryxU64(&x189, &x190, x188, x153, x177);</span> <span class="line" id="L2518"> <span class="tok-kw">var</span> x191: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2519"> <span class="tok-kw">var</span> x192: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2520"> addcarryxU64(&x191, &x192, x190, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x154) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x126)), (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x178) + x158));</span> <span class="line" id="L2521"> <span class="tok-kw">var</span> x193: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2522"> <span class="tok-kw">var</span> x194: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2523"> mulxU64(&x193, &x194, x3, <span class="tok-number">0x200000000</span>);</span> <span class="line" id="L2524"> <span class="tok-kw">var</span> x195: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2525"> <span class="tok-kw">var</span> x196: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2526"> mulxU64(&x195, &x196, x3, <span class="tok-number">0xfffffffe00000000</span>);</span> <span class="line" id="L2527"> <span class="tok-kw">var</span> x197: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2528"> <span class="tok-kw">var</span> x198: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2529"> mulxU64(&x197, &x198, x3, <span class="tok-number">0x200000000</span>);</span> <span class="line" id="L2530"> <span class="tok-kw">var</span> x199: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2531"> <span class="tok-kw">var</span> x200: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2532"> mulxU64(&x199, &x200, x3, <span class="tok-number">0xfffffffe00000001</span>);</span> <span class="line" id="L2533"> <span class="tok-kw">var</span> x201: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2534"> <span class="tok-kw">var</span> x202: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2535"> addcarryxU64(&x201, &x202, <span class="tok-number">0x0</span>, x200, x197);</span> <span class="line" id="L2536"> <span class="tok-kw">var</span> x203: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2537"> <span class="tok-kw">var</span> x204: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2538"> addcarryxU64(&x203, &x204, x202, x198, x195);</span> <span class="line" id="L2539"> <span class="tok-kw">var</span> x205: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2540"> <span class="tok-kw">var</span> x206: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2541"> addcarryxU64(&x205, &x206, x204, x196, x193);</span> <span class="line" id="L2542"> <span class="tok-kw">var</span> x207: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2543"> <span class="tok-kw">var</span> x208: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2544"> addcarryxU64(&x207, &x208, x206, x194, x3);</span> <span class="line" id="L2545"> <span class="tok-kw">var</span> x209: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2546"> <span class="tok-kw">var</span> x210: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2547"> addcarryxU64(&x209, &x210, <span class="tok-number">0x0</span>, x181, x199);</span> <span class="line" id="L2548"> <span class="tok-kw">var</span> x211: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2549"> <span class="tok-kw">var</span> x212: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2550"> addcarryxU64(&x211, &x212, x210, x183, x201);</span> <span class="line" id="L2551"> <span class="tok-kw">var</span> x213: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2552"> <span class="tok-kw">var</span> x214: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2553"> addcarryxU64(&x213, &x214, x212, x185, x203);</span> <span class="line" id="L2554"> <span class="tok-kw">var</span> x215: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2555"> <span class="tok-kw">var</span> x216: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2556"> addcarryxU64(&x215, &x216, x214, x187, x205);</span> <span class="line" id="L2557"> <span class="tok-kw">var</span> x217: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2558"> <span class="tok-kw">var</span> x218: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2559"> addcarryxU64(&x217, &x218, x216, x189, x207);</span> <span class="line" id="L2560"> <span class="tok-kw">var</span> x219: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2561"> <span class="tok-kw">var</span> x220: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2562"> addcarryxU64(&x219, &x220, x218, x191, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x208));</span> <span class="line" id="L2563"> <span class="tok-kw">var</span> x221: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2564"> <span class="tok-kw">var</span> x222: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2565"> mulxU64(&x221, &x222, x209, <span class="tok-number">0x100000001</span>);</span> <span class="line" id="L2566"> <span class="tok-kw">var</span> x223: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2567"> <span class="tok-kw">var</span> x224: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2568"> mulxU64(&x223, &x224, x221, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2569"> <span class="tok-kw">var</span> x225: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2570"> <span class="tok-kw">var</span> x226: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2571"> mulxU64(&x225, &x226, x221, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2572"> <span class="tok-kw">var</span> x227: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2573"> <span class="tok-kw">var</span> x228: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2574"> mulxU64(&x227, &x228, x221, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2575"> <span class="tok-kw">var</span> x229: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2576"> <span class="tok-kw">var</span> x230: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2577"> mulxU64(&x229, &x230, x221, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L2578"> <span class="tok-kw">var</span> x231: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2579"> <span class="tok-kw">var</span> x232: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2580"> mulxU64(&x231, &x232, x221, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L2581"> <span class="tok-kw">var</span> x233: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2582"> <span class="tok-kw">var</span> x234: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2583"> mulxU64(&x233, &x234, x221, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L2584"> <span class="tok-kw">var</span> x235: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2585"> <span class="tok-kw">var</span> x236: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2586"> addcarryxU64(&x235, &x236, <span class="tok-number">0x0</span>, x234, x231);</span> <span class="line" id="L2587"> <span class="tok-kw">var</span> x237: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2588"> <span class="tok-kw">var</span> x238: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2589"> addcarryxU64(&x237, &x238, x236, x232, x229);</span> <span class="line" id="L2590"> <span class="tok-kw">var</span> x239: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2591"> <span class="tok-kw">var</span> x240: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2592"> addcarryxU64(&x239, &x240, x238, x230, x227);</span> <span class="line" id="L2593"> <span class="tok-kw">var</span> x241: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2594"> <span class="tok-kw">var</span> x242: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2595"> addcarryxU64(&x241, &x242, x240, x228, x225);</span> <span class="line" id="L2596"> <span class="tok-kw">var</span> x243: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2597"> <span class="tok-kw">var</span> x244: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2598"> addcarryxU64(&x243, &x244, x242, x226, x223);</span> <span class="line" id="L2599"> <span class="tok-kw">var</span> x245: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2600"> <span class="tok-kw">var</span> x246: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2601"> addcarryxU64(&x245, &x246, <span class="tok-number">0x0</span>, x209, x233);</span> <span class="line" id="L2602"> <span class="tok-kw">var</span> x247: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2603"> <span class="tok-kw">var</span> x248: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2604"> addcarryxU64(&x247, &x248, x246, x211, x235);</span> <span class="line" id="L2605"> <span class="tok-kw">var</span> x249: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2606"> <span class="tok-kw">var</span> x250: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2607"> addcarryxU64(&x249, &x250, x248, x213, x237);</span> <span class="line" id="L2608"> <span class="tok-kw">var</span> x251: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2609"> <span class="tok-kw">var</span> x252: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2610"> addcarryxU64(&x251, &x252, x250, x215, x239);</span> <span class="line" id="L2611"> <span class="tok-kw">var</span> x253: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2612"> <span class="tok-kw">var</span> x254: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2613"> addcarryxU64(&x253, &x254, x252, x217, x241);</span> <span class="line" id="L2614"> <span class="tok-kw">var</span> x255: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2615"> <span class="tok-kw">var</span> x256: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2616"> addcarryxU64(&x255, &x256, x254, x219, x243);</span> <span class="line" id="L2617"> <span class="tok-kw">var</span> x257: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2618"> <span class="tok-kw">var</span> x258: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2619"> addcarryxU64(&x257, &x258, x256, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x220) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x192)), (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x244) + x224));</span> <span class="line" id="L2620"> <span class="tok-kw">var</span> x259: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2621"> <span class="tok-kw">var</span> x260: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2622"> mulxU64(&x259, &x260, x4, <span class="tok-number">0x200000000</span>);</span> <span class="line" id="L2623"> <span class="tok-kw">var</span> x261: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2624"> <span class="tok-kw">var</span> x262: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2625"> mulxU64(&x261, &x262, x4, <span class="tok-number">0xfffffffe00000000</span>);</span> <span class="line" id="L2626"> <span class="tok-kw">var</span> x263: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2627"> <span class="tok-kw">var</span> x264: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2628"> mulxU64(&x263, &x264, x4, <span class="tok-number">0x200000000</span>);</span> <span class="line" id="L2629"> <span class="tok-kw">var</span> x265: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2630"> <span class="tok-kw">var</span> x266: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2631"> mulxU64(&x265, &x266, x4, <span class="tok-number">0xfffffffe00000001</span>);</span> <span class="line" id="L2632"> <span class="tok-kw">var</span> x267: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2633"> <span class="tok-kw">var</span> x268: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2634"> addcarryxU64(&x267, &x268, <span class="tok-number">0x0</span>, x266, x263);</span> <span class="line" id="L2635"> <span class="tok-kw">var</span> x269: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2636"> <span class="tok-kw">var</span> x270: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2637"> addcarryxU64(&x269, &x270, x268, x264, x261);</span> <span class="line" id="L2638"> <span class="tok-kw">var</span> x271: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2639"> <span class="tok-kw">var</span> x272: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2640"> addcarryxU64(&x271, &x272, x270, x262, x259);</span> <span class="line" id="L2641"> <span class="tok-kw">var</span> x273: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2642"> <span class="tok-kw">var</span> x274: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2643"> addcarryxU64(&x273, &x274, x272, x260, x4);</span> <span class="line" id="L2644"> <span class="tok-kw">var</span> x275: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2645"> <span class="tok-kw">var</span> x276: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2646"> addcarryxU64(&x275, &x276, <span class="tok-number">0x0</span>, x247, x265);</span> <span class="line" id="L2647"> <span class="tok-kw">var</span> x277: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2648"> <span class="tok-kw">var</span> x278: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2649"> addcarryxU64(&x277, &x278, x276, x249, x267);</span> <span class="line" id="L2650"> <span class="tok-kw">var</span> x279: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2651"> <span class="tok-kw">var</span> x280: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2652"> addcarryxU64(&x279, &x280, x278, x251, x269);</span> <span class="line" id="L2653"> <span class="tok-kw">var</span> x281: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2654"> <span class="tok-kw">var</span> x282: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2655"> addcarryxU64(&x281, &x282, x280, x253, x271);</span> <span class="line" id="L2656"> <span class="tok-kw">var</span> x283: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2657"> <span class="tok-kw">var</span> x284: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2658"> addcarryxU64(&x283, &x284, x282, x255, x273);</span> <span class="line" id="L2659"> <span class="tok-kw">var</span> x285: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2660"> <span class="tok-kw">var</span> x286: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2661"> addcarryxU64(&x285, &x286, x284, x257, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x274));</span> <span class="line" id="L2662"> <span class="tok-kw">var</span> x287: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2663"> <span class="tok-kw">var</span> x288: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2664"> mulxU64(&x287, &x288, x275, <span class="tok-number">0x100000001</span>);</span> <span class="line" id="L2665"> <span class="tok-kw">var</span> x289: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2666"> <span class="tok-kw">var</span> x290: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2667"> mulxU64(&x289, &x290, x287, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2668"> <span class="tok-kw">var</span> x291: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2669"> <span class="tok-kw">var</span> x292: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2670"> mulxU64(&x291, &x292, x287, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2671"> <span class="tok-kw">var</span> x293: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2672"> <span class="tok-kw">var</span> x294: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2673"> mulxU64(&x293, &x294, x287, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2674"> <span class="tok-kw">var</span> x295: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2675"> <span class="tok-kw">var</span> x296: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2676"> mulxU64(&x295, &x296, x287, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L2677"> <span class="tok-kw">var</span> x297: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2678"> <span class="tok-kw">var</span> x298: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2679"> mulxU64(&x297, &x298, x287, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L2680"> <span class="tok-kw">var</span> x299: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2681"> <span class="tok-kw">var</span> x300: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2682"> mulxU64(&x299, &x300, x287, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L2683"> <span class="tok-kw">var</span> x301: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2684"> <span class="tok-kw">var</span> x302: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2685"> addcarryxU64(&x301, &x302, <span class="tok-number">0x0</span>, x300, x297);</span> <span class="line" id="L2686"> <span class="tok-kw">var</span> x303: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2687"> <span class="tok-kw">var</span> x304: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2688"> addcarryxU64(&x303, &x304, x302, x298, x295);</span> <span class="line" id="L2689"> <span class="tok-kw">var</span> x305: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2690"> <span class="tok-kw">var</span> x306: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2691"> addcarryxU64(&x305, &x306, x304, x296, x293);</span> <span class="line" id="L2692"> <span class="tok-kw">var</span> x307: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2693"> <span class="tok-kw">var</span> x308: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2694"> addcarryxU64(&x307, &x308, x306, x294, x291);</span> <span class="line" id="L2695"> <span class="tok-kw">var</span> x309: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2696"> <span class="tok-kw">var</span> x310: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2697"> addcarryxU64(&x309, &x310, x308, x292, x289);</span> <span class="line" id="L2698"> <span class="tok-kw">var</span> x311: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2699"> <span class="tok-kw">var</span> x312: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2700"> addcarryxU64(&x311, &x312, <span class="tok-number">0x0</span>, x275, x299);</span> <span class="line" id="L2701"> <span class="tok-kw">var</span> x313: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2702"> <span class="tok-kw">var</span> x314: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2703"> addcarryxU64(&x313, &x314, x312, x277, x301);</span> <span class="line" id="L2704"> <span class="tok-kw">var</span> x315: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2705"> <span class="tok-kw">var</span> x316: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2706"> addcarryxU64(&x315, &x316, x314, x279, x303);</span> <span class="line" id="L2707"> <span class="tok-kw">var</span> x317: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2708"> <span class="tok-kw">var</span> x318: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2709"> addcarryxU64(&x317, &x318, x316, x281, x305);</span> <span class="line" id="L2710"> <span class="tok-kw">var</span> x319: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2711"> <span class="tok-kw">var</span> x320: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2712"> addcarryxU64(&x319, &x320, x318, x283, x307);</span> <span class="line" id="L2713"> <span class="tok-kw">var</span> x321: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2714"> <span class="tok-kw">var</span> x322: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2715"> addcarryxU64(&x321, &x322, x320, x285, x309);</span> <span class="line" id="L2716"> <span class="tok-kw">var</span> x323: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2717"> <span class="tok-kw">var</span> x324: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2718"> addcarryxU64(&x323, &x324, x322, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x286) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x258)), (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x310) + x290));</span> <span class="line" id="L2719"> <span class="tok-kw">var</span> x325: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2720"> <span class="tok-kw">var</span> x326: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2721"> mulxU64(&x325, &x326, x5, <span class="tok-number">0x200000000</span>);</span> <span class="line" id="L2722"> <span class="tok-kw">var</span> x327: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2723"> <span class="tok-kw">var</span> x328: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2724"> mulxU64(&x327, &x328, x5, <span class="tok-number">0xfffffffe00000000</span>);</span> <span class="line" id="L2725"> <span class="tok-kw">var</span> x329: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2726"> <span class="tok-kw">var</span> x330: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2727"> mulxU64(&x329, &x330, x5, <span class="tok-number">0x200000000</span>);</span> <span class="line" id="L2728"> <span class="tok-kw">var</span> x331: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2729"> <span class="tok-kw">var</span> x332: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2730"> mulxU64(&x331, &x332, x5, <span class="tok-number">0xfffffffe00000001</span>);</span> <span class="line" id="L2731"> <span class="tok-kw">var</span> x333: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2732"> <span class="tok-kw">var</span> x334: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2733"> addcarryxU64(&x333, &x334, <span class="tok-number">0x0</span>, x332, x329);</span> <span class="line" id="L2734"> <span class="tok-kw">var</span> x335: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2735"> <span class="tok-kw">var</span> x336: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2736"> addcarryxU64(&x335, &x336, x334, x330, x327);</span> <span class="line" id="L2737"> <span class="tok-kw">var</span> x337: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2738"> <span class="tok-kw">var</span> x338: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2739"> addcarryxU64(&x337, &x338, x336, x328, x325);</span> <span class="line" id="L2740"> <span class="tok-kw">var</span> x339: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2741"> <span class="tok-kw">var</span> x340: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2742"> addcarryxU64(&x339, &x340, x338, x326, x5);</span> <span class="line" id="L2743"> <span class="tok-kw">var</span> x341: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2744"> <span class="tok-kw">var</span> x342: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2745"> addcarryxU64(&x341, &x342, <span class="tok-number">0x0</span>, x313, x331);</span> <span class="line" id="L2746"> <span class="tok-kw">var</span> x343: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2747"> <span class="tok-kw">var</span> x344: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2748"> addcarryxU64(&x343, &x344, x342, x315, x333);</span> <span class="line" id="L2749"> <span class="tok-kw">var</span> x345: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2750"> <span class="tok-kw">var</span> x346: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2751"> addcarryxU64(&x345, &x346, x344, x317, x335);</span> <span class="line" id="L2752"> <span class="tok-kw">var</span> x347: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2753"> <span class="tok-kw">var</span> x348: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2754"> addcarryxU64(&x347, &x348, x346, x319, x337);</span> <span class="line" id="L2755"> <span class="tok-kw">var</span> x349: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2756"> <span class="tok-kw">var</span> x350: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2757"> addcarryxU64(&x349, &x350, x348, x321, x339);</span> <span class="line" id="L2758"> <span class="tok-kw">var</span> x351: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2759"> <span class="tok-kw">var</span> x352: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2760"> addcarryxU64(&x351, &x352, x350, x323, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x340));</span> <span class="line" id="L2761"> <span class="tok-kw">var</span> x353: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2762"> <span class="tok-kw">var</span> x354: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2763"> mulxU64(&x353, &x354, x341, <span class="tok-number">0x100000001</span>);</span> <span class="line" id="L2764"> <span class="tok-kw">var</span> x355: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2765"> <span class="tok-kw">var</span> x356: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2766"> mulxU64(&x355, &x356, x353, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2767"> <span class="tok-kw">var</span> x357: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2768"> <span class="tok-kw">var</span> x358: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2769"> mulxU64(&x357, &x358, x353, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2770"> <span class="tok-kw">var</span> x359: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2771"> <span class="tok-kw">var</span> x360: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2772"> mulxU64(&x359, &x360, x353, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2773"> <span class="tok-kw">var</span> x361: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2774"> <span class="tok-kw">var</span> x362: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2775"> mulxU64(&x361, &x362, x353, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L2776"> <span class="tok-kw">var</span> x363: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2777"> <span class="tok-kw">var</span> x364: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2778"> mulxU64(&x363, &x364, x353, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L2779"> <span class="tok-kw">var</span> x365: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2780"> <span class="tok-kw">var</span> x366: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2781"> mulxU64(&x365, &x366, x353, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L2782"> <span class="tok-kw">var</span> x367: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2783"> <span class="tok-kw">var</span> x368: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2784"> addcarryxU64(&x367, &x368, <span class="tok-number">0x0</span>, x366, x363);</span> <span class="line" id="L2785"> <span class="tok-kw">var</span> x369: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2786"> <span class="tok-kw">var</span> x370: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2787"> addcarryxU64(&x369, &x370, x368, x364, x361);</span> <span class="line" id="L2788"> <span class="tok-kw">var</span> x371: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2789"> <span class="tok-kw">var</span> x372: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2790"> addcarryxU64(&x371, &x372, x370, x362, x359);</span> <span class="line" id="L2791"> <span class="tok-kw">var</span> x373: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2792"> <span class="tok-kw">var</span> x374: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2793"> addcarryxU64(&x373, &x374, x372, x360, x357);</span> <span class="line" id="L2794"> <span class="tok-kw">var</span> x375: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2795"> <span class="tok-kw">var</span> x376: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2796"> addcarryxU64(&x375, &x376, x374, x358, x355);</span> <span class="line" id="L2797"> <span class="tok-kw">var</span> x377: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2798"> <span class="tok-kw">var</span> x378: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2799"> addcarryxU64(&x377, &x378, <span class="tok-number">0x0</span>, x341, x365);</span> <span class="line" id="L2800"> <span class="tok-kw">var</span> x379: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2801"> <span class="tok-kw">var</span> x380: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2802"> addcarryxU64(&x379, &x380, x378, x343, x367);</span> <span class="line" id="L2803"> <span class="tok-kw">var</span> x381: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2804"> <span class="tok-kw">var</span> x382: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2805"> addcarryxU64(&x381, &x382, x380, x345, x369);</span> <span class="line" id="L2806"> <span class="tok-kw">var</span> x383: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2807"> <span class="tok-kw">var</span> x384: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2808"> addcarryxU64(&x383, &x384, x382, x347, x371);</span> <span class="line" id="L2809"> <span class="tok-kw">var</span> x385: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2810"> <span class="tok-kw">var</span> x386: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2811"> addcarryxU64(&x385, &x386, x384, x349, x373);</span> <span class="line" id="L2812"> <span class="tok-kw">var</span> x387: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2813"> <span class="tok-kw">var</span> x388: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2814"> addcarryxU64(&x387, &x388, x386, x351, x375);</span> <span class="line" id="L2815"> <span class="tok-kw">var</span> x389: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2816"> <span class="tok-kw">var</span> x390: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2817"> addcarryxU64(&x389, &x390, x388, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x352) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x324)), (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x376) + x356));</span> <span class="line" id="L2818"> <span class="tok-kw">var</span> x391: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2819"> <span class="tok-kw">var</span> x392: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2820"> subborrowxU64(&x391, &x392, <span class="tok-number">0x0</span>, x379, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L2821"> <span class="tok-kw">var</span> x393: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2822"> <span class="tok-kw">var</span> x394: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2823"> subborrowxU64(&x393, &x394, x392, x381, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L2824"> <span class="tok-kw">var</span> x395: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2825"> <span class="tok-kw">var</span> x396: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2826"> subborrowxU64(&x395, &x396, x394, x383, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L2827"> <span class="tok-kw">var</span> x397: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2828"> <span class="tok-kw">var</span> x398: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2829"> subborrowxU64(&x397, &x398, x396, x385, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2830"> <span class="tok-kw">var</span> x399: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2831"> <span class="tok-kw">var</span> x400: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2832"> subborrowxU64(&x399, &x400, x398, x387, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2833"> <span class="tok-kw">var</span> x401: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2834"> <span class="tok-kw">var</span> x402: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2835"> subborrowxU64(&x401, &x402, x400, x389, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L2836"> <span class="tok-kw">var</span> x403: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2837"> <span class="tok-kw">var</span> x404: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2838"> subborrowxU64(&x403, &x404, x402, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x390), <span class="tok-number">0x0</span>);</span> <span class="line" id="L2839"> <span class="tok-kw">var</span> x405: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2840"> cmovznzU64(&x405, x404, x391, x379);</span> <span class="line" id="L2841"> <span class="tok-kw">var</span> x406: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2842"> cmovznzU64(&x406, x404, x393, x381);</span> <span class="line" id="L2843"> <span class="tok-kw">var</span> x407: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2844"> cmovznzU64(&x407, x404, x395, x383);</span> <span class="line" id="L2845"> <span class="tok-kw">var</span> x408: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2846"> cmovznzU64(&x408, x404, x397, x385);</span> <span class="line" id="L2847"> <span class="tok-kw">var</span> x409: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2848"> cmovznzU64(&x409, x404, x399, x387);</span> <span class="line" id="L2849"> <span class="tok-kw">var</span> x410: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2850"> cmovznzU64(&x410, x404, x401, x389);</span> <span class="line" id="L2851"> out1[<span class="tok-number">0</span>] = x405;</span> <span class="line" id="L2852"> out1[<span class="tok-number">1</span>] = x406;</span> <span class="line" id="L2853"> out1[<span class="tok-number">2</span>] = x407;</span> <span class="line" id="L2854"> out1[<span class="tok-number">3</span>] = x408;</span> <span class="line" id="L2855"> out1[<span class="tok-number">4</span>] = x409;</span> <span class="line" id="L2856"> out1[<span class="tok-number">5</span>] = x410;</span> <span class="line" id="L2857">}</span> <span class="line" id="L2858"></span> <span class="line" id="L2859"><span class="tok-comment">/// The function nonzero outputs a single non-zero word if the input is non-zero and zero otherwise.</span></span> <span class="line" id="L2860"><span class="tok-comment">///</span></span> <span class="line" id="L2861"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L2862"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L2863"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L2864"><span class="tok-comment">/// out1 = 0 ↔ eval (from_montgomery arg1) mod m = 0</span></span> <span class="line" id="L2865"><span class="tok-comment">///</span></span> <span class="line" id="L2866"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L2867"><span class="tok-comment">/// arg1: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L2868"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L2869"><span class="tok-comment">/// out1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L2870"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">nonzero</span>(out1: <span class="tok-type">u64</span>, arg1: [<span class="tok-number">6</span>]<span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L2871"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L2872"></span> <span class="line" id="L2873"> <span class="tok-kw">const</span> x1 = ((arg1[<span class="tok-number">0</span>]) \| ((arg1[<span class="tok-number">1</span>]) \| ((arg1[<span class="tok-number">2</span>]) \| ((arg1[<span class="tok-number">3</span>]) \| ((arg1[<span class="tok-number">4</span>]) \| (arg1[<span class="tok-number">5</span>]))))));</span> <span class="line" id="L2874"> out1. = x1;</span> <span class="line" id="L2875">}</span> <span class="line" id="L2876"></span> <span class="line" id="L2877"><span class="tok-comment">/// The function selectznz is a multi-limb conditional select.</span></span> <span class="line" id="L2878"><span class="tok-comment">///</span></span> <span class="line" id="L2879"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L2880"><span class="tok-comment">/// out1 = (if arg1 = 0 then arg2 else arg3)</span></span> <span class="line" id="L2881"><span class="tok-comment">///</span></span> <span class="line" id="L2882"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L2883"><span class="tok-comment">/// arg1: [0x0 ~> 0x1]</span></span> <span class="line" id="L2884"><span class="tok-comment">/// arg2: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L2885"><span class="tok-comment">/// arg3: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L2886"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L2887"><span class="tok-comment">/// out1: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L2888"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">selectznz</span>(out1: [<span class="tok-number">6</span>]<span class="tok-type">u64</span>, arg1: <span class="tok-type">u1</span>, arg2: [<span class="tok-number">6</span>]<span class="tok-type">u64</span>, arg3: [<span class="tok-number">6</span>]<span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L2889"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L2890"></span> <span class="line" id="L2891"> <span class="tok-kw">var</span> x1: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2892"> cmovznzU64(&x1, arg1, (arg2[<span class="tok-number">0</span>]), (arg3[<span class="tok-number">0</span>]));</span> <span class="line" id="L2893"> <span class="tok-kw">var</span> x2: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2894"> cmovznzU64(&x2, arg1, (arg2[<span class="tok-number">1</span>]), (arg3[<span class="tok-number">1</span>]));</span> <span class="line" id="L2895"> <span class="tok-kw">var</span> x3: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2896"> cmovznzU64(&x3, arg1, (arg2[<span class="tok-number">2</span>]), (arg3[<span class="tok-number">2</span>]));</span> <span class="line" id="L2897"> <span class="tok-kw">var</span> x4: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2898"> cmovznzU64(&x4, arg1, (arg2[<span class="tok-number">3</span>]), (arg3[<span class="tok-number">3</span>]));</span> <span class="line" id="L2899"> <span class="tok-kw">var</span> x5: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2900"> cmovznzU64(&x5, arg1, (arg2[<span class="tok-number">4</span>]), (arg3[<span class="tok-number">4</span>]));</span> <span class="line" id="L2901"> <span class="tok-kw">var</span> x6: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L2902"> cmovznzU64(&x6, arg1, (arg2[<span class="tok-number">5</span>]), (arg3[<span class="tok-number">5</span>]));</span> <span class="line" id="L2903"> out1[<span class="tok-number">0</span>] = x1;</span> <span class="line" id="L2904"> out1[<span class="tok-number">1</span>] = x2;</span> <span class="line" id="L2905"> out1[<span class="tok-number">2</span>] = x3;</span> <span class="line" id="L2906"> out1[<span class="tok-number">3</span>] = x4;</span> <span class="line" id="L2907"> out1[<span class="tok-number">4</span>] = x5;</span> <span class="line" id="L2908"> out1[<span class="tok-number">5</span>] = x6;</span> <span class="line" id="L2909">}</span> <span class="line" id="L2910"></span> <span class="line" id="L2911"><span class="tok-comment">/// The function toBytes serializes a field element NOT in the Montgomery domain to bytes in little-endian order.</span></span> <span class="line" id="L2912"><span class="tok-comment">///</span></span> <span class="line" id="L2913"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L2914"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L2915"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L2916"><span class="tok-comment">/// out1 = map (λ x, ⌊((eval arg1 mod m) mod 2^(8 (x + 1))) / 2^(8 * x)⌋) [0..47]</span></span> <span class="line" id="L2917"><span class="tok-comment">///</span></span> <span class="line" id="L2918"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L2919"><span class="tok-comment">/// arg1: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L2920"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L2921"><span class="tok-comment">/// out1: [[0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff]]</span></span> <span class="line" id="L2922"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toBytes</span>(out1: [<span class="tok-number">48</span>]<span class="tok-type">u8</span>, arg1: [<span class="tok-number">6</span>]<span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L2923"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L2924"></span> <span class="line" id="L2925"> <span class="tok-kw">const</span> x1 = (arg1[<span class="tok-number">5</span>]);</span> <span class="line" id="L2926"> <span class="tok-kw">const</span> x2 = (arg1[<span class="tok-number">4</span>]);</span> <span class="line" id="L2927"> <span class="tok-kw">const</span> x3 = (arg1[<span class="tok-number">3</span>]);</span> <span class="line" id="L2928"> <span class="tok-kw">const</span> x4 = (arg1[<span class="tok-number">2</span>]);</span> <span class="line" id="L2929"> <span class="tok-kw">const</span> x5 = (arg1[<span class="tok-number">1</span>]);</span> <span class="line" id="L2930"> <span class="tok-kw">const</span> x6 = (arg1[<span class="tok-number">0</span>]);</span> <span class="line" id="L2931"> <span class="tok-kw">const</span> x7 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x6 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L2932"> <span class="tok-kw">const</span> x8 = (x6 >> <span class="tok-number">8</span>);</span> <span class="line" id="L2933"> <span class="tok-kw">const</span> x9 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x8 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L2934"> <span class="tok-kw">const</span> x10 = (x8 >> <span class="tok-number">8</span>);</span> <span class="line" id="L2935"> <span class="tok-kw">const</span> x11 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x10 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L2936"> <span class="tok-kw">const</span> x12 = (x10 >> <span class="tok-number">8</span>);</span> <span class="line" id="L2937"> <span class="tok-kw">const</span> x13 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x12 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L2938"> <span class="tok-kw">const</span> x14 = (x12 >> <span class="tok-number">8</span>);</span> <span class="line" id="L2939"> <span class="tok-kw">const</span> x15 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x14 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L2940"> <span class="tok-kw">const</span> x16 = (x14 >> <span class="tok-number">8</span>);</span> <span class="line" id="L2941"> <span class="tok-kw">const</span> x17 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x16 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L2942"> <span class="tok-kw">const</span> x18 = (x16 >> <span class="tok-number">8</span>);</span> <span class="line" id="L2943"> <span class="tok-kw">const</span> x19 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x18 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L2944"> <span class="tok-kw">const</span> x20 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x18 >> <span class="tok-number">8</span>)));</span> <span class="line" id="L2945"> <span class="tok-kw">const</span> x21 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x5 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L2946"> <span class="tok-kw">const</span> x22 = (x5 >> <span class="tok-number">8</span>);</span> <span class="line" id="L2947"> <span class="tok-kw">const</span> x23 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x22 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L2948"> <span class="tok-kw">const</span> x24 = (x22 >> <span class="tok-number">8</span>);</span> <span class="line" id="L2949"> <span class="tok-kw">const</span> x25 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x24 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L2950"> <span class="tok-kw">const</span> x26 = (x24 >> <span class="tok-number">8</span>);</span> <span class="line" id="L2951"> <span class="tok-kw">const</span> x27 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x26 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L2952"> <span class="tok-kw">const</span> x28 = (x26 >> <span class="tok-number">8</span>);</span> <span class="line" id="L2953"> <span class="tok-kw">const</span> x29 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x28 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L2954"> <span class="tok-kw">const</span> x30 = (x28 >> <span class="tok-number">8</span>);</span> <span class="line" id="L2955"> <span class="tok-kw">const</span> x31 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x30 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L2956"> <span class="tok-kw">const</span> x32 = (x30 >> <span class="tok-number">8</span>);</span> <span class="line" id="L2957"> <span class="tok-kw">const</span> x33 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x32 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L2958"> <span class="tok-kw">const</span> x34 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x32 >> <span class="tok-number">8</span>)));</span> <span class="line" id="L2959"> <span class="tok-kw">const</span> x35 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x4 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L2960"> <span class="tok-kw">const</span> x36 = (x4 >> <span class="tok-number">8</span>);</span> <span class="line" id="L2961"> <span class="tok-kw">const</span> x37 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x36 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L2962"> <span class="tok-kw">const</span> x38 = (x36 >> <span class="tok-number">8</span>);</span> <span class="line" id="L2963"> <span class="tok-kw">const</span> x39 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x38 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L2964"> <span class="tok-kw">const</span> x40 = (x38 >> <span class="tok-number">8</span>);</span> <span class="line" id="L2965"> <span class="tok-kw">const</span> x41 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x40 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L2966"> <span class="tok-kw">const</span> x42 = (x40 >> <span class="tok-number">8</span>);</span> <span class="line" id="L2967"> <span class="tok-kw">const</span> x43 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x42 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L2968"> <span class="tok-kw">const</span> x44 = (x42 >> <span class="tok-number">8</span>);</span> <span class="line" id="L2969"> <span class="tok-kw">const</span> x45 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x44 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L2970"> <span class="tok-kw">const</span> x46 = (x44 >> <span class="tok-number">8</span>);</span> <span class="line" id="L2971"> <span class="tok-kw">const</span> x47 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x46 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L2972"> <span class="tok-kw">const</span> x48 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x46 >> <span class="tok-number">8</span>)));</span> <span class="line" id="L2973"> <span class="tok-kw">const</span> x49 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x3 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L2974"> <span class="tok-kw">const</span> x50 = (x3 >> <span class="tok-number">8</span>);</span> <span class="line" id="L2975"> <span class="tok-kw">const</span> x51 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x50 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L2976"> <span class="tok-kw">const</span> x52 = (x50 >> <span class="tok-number">8</span>);</span> <span class="line" id="L2977"> <span class="tok-kw">const</span> x53 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x52 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L2978"> <span class="tok-kw">const</span> x54 = (x52 >> <span class="tok-number">8</span>);</span> <span class="line" id="L2979"> <span class="tok-kw">const</span> x55 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x54 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L2980"> <span class="tok-kw">const</span> x56 = (x54 >> <span class="tok-number">8</span>);</span> <span class="line" id="L2981"> <span class="tok-kw">const</span> x57 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x56 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L2982"> <span class="tok-kw">const</span> x58 = (x56 >> <span class="tok-number">8</span>);</span> <span class="line" id="L2983"> <span class="tok-kw">const</span> x59 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x58 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L2984"> <span class="tok-kw">const</span> x60 = (x58 >> <span class="tok-number">8</span>);</span> <span class="line" id="L2985"> <span class="tok-kw">const</span> x61 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x60 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L2986"> <span class="tok-kw">const</span> x62 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x60 >> <span class="tok-number">8</span>)));</span> <span class="line" id="L2987"> <span class="tok-kw">const</span> x63 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x2 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L2988"> <span class="tok-kw">const</span> x64 = (x2 >> <span class="tok-number">8</span>);</span> <span class="line" id="L2989"> <span class="tok-kw">const</span> x65 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x64 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L2990"> <span class="tok-kw">const</span> x66 = (x64 >> <span class="tok-number">8</span>);</span> <span class="line" id="L2991"> <span class="tok-kw">const</span> x67 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x66 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L2992"> <span class="tok-kw">const</span> x68 = (x66 >> <span class="tok-number">8</span>);</span> <span class="line" id="L2993"> <span class="tok-kw">const</span> x69 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x68 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L2994"> <span class="tok-kw">const</span> x70 = (x68 >> <span class="tok-number">8</span>);</span> <span class="line" id="L2995"> <span class="tok-kw">const</span> x71 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x70 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L2996"> <span class="tok-kw">const</span> x72 = (x70 >> <span class="tok-number">8</span>);</span> <span class="line" id="L2997"> <span class="tok-kw">const</span> x73 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x72 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L2998"> <span class="tok-kw">const</span> x74 = (x72 >> <span class="tok-number">8</span>);</span> <span class="line" id="L2999"> <span class="tok-kw">const</span> x75 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x74 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L3000"> <span class="tok-kw">const</span> x76 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x74 >> <span class="tok-number">8</span>)));</span> <span class="line" id="L3001"> <span class="tok-kw">const</span> x77 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x1 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L3002"> <span class="tok-kw">const</span> x78 = (x1 >> <span class="tok-number">8</span>);</span> <span class="line" id="L3003"> <span class="tok-kw">const</span> x79 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x78 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L3004"> <span class="tok-kw">const</span> x80 = (x78 >> <span class="tok-number">8</span>);</span> <span class="line" id="L3005"> <span class="tok-kw">const</span> x81 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x80 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L3006"> <span class="tok-kw">const</span> x82 = (x80 >> <span class="tok-number">8</span>);</span> <span class="line" id="L3007"> <span class="tok-kw">const</span> x83 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x82 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L3008"> <span class="tok-kw">const</span> x84 = (x82 >> <span class="tok-number">8</span>);</span> <span class="line" id="L3009"> <span class="tok-kw">const</span> x85 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x84 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L3010"> <span class="tok-kw">const</span> x86 = (x84 >> <span class="tok-number">8</span>);</span> <span class="line" id="L3011"> <span class="tok-kw">const</span> x87 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x86 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L3012"> <span class="tok-kw">const</span> x88 = (x86 >> <span class="tok-number">8</span>);</span> <span class="line" id="L3013"> <span class="tok-kw">const</span> x89 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x88 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L3014"> <span class="tok-kw">const</span> x90 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x88 >> <span class="tok-number">8</span>)));</span> <span class="line" id="L3015"> out1[<span class="tok-number">0</span>] = x7;</span> <span class="line" id="L3016"> out1[<span class="tok-number">1</span>] = x9;</span> <span class="line" id="L3017"> out1[<span class="tok-number">2</span>] = x11;</span> <span class="line" id="L3018"> out1[<span class="tok-number">3</span>] = x13;</span> <span class="line" id="L3019"> out1[<span class="tok-number">4</span>] = x15;</span> <span class="line" id="L3020"> out1[<span class="tok-number">5</span>] = x17;</span> <span class="line" id="L3021"> out1[<span class="tok-number">6</span>] = x19;</span> <span class="line" id="L3022"> out1[<span class="tok-number">7</span>] = x20;</span> <span class="line" id="L3023"> out1[<span class="tok-number">8</span>] = x21;</span> <span class="line" id="L3024"> out1[<span class="tok-number">9</span>] = x23;</span> <span class="line" id="L3025"> out1[<span class="tok-number">10</span>] = x25;</span> <span class="line" id="L3026"> out1[<span class="tok-number">11</span>] = x27;</span> <span class="line" id="L3027"> out1[<span class="tok-number">12</span>] = x29;</span> <span class="line" id="L3028"> out1[<span class="tok-number">13</span>] = x31;</span> <span class="line" id="L3029"> out1[<span class="tok-number">14</span>] = x33;</span> <span class="line" id="L3030"> out1[<span class="tok-number">15</span>] = x34;</span> <span class="line" id="L3031"> out1[<span class="tok-number">16</span>] = x35;</span> <span class="line" id="L3032"> out1[<span class="tok-number">17</span>] = x37;</span> <span class="line" id="L3033"> out1[<span class="tok-number">18</span>] = x39;</span> <span class="line" id="L3034"> out1[<span class="tok-number">19</span>] = x41;</span> <span class="line" id="L3035"> out1[<span class="tok-number">20</span>] = x43;</span> <span class="line" id="L3036"> out1[<span class="tok-number">21</span>] = x45;</span> <span class="line" id="L3037"> out1[<span class="tok-number">22</span>] = x47;</span> <span class="line" id="L3038"> out1[<span class="tok-number">23</span>] = x48;</span> <span class="line" id="L3039"> out1[<span class="tok-number">24</span>] = x49;</span> <span class="line" id="L3040"> out1[<span class="tok-number">25</span>] = x51;</span> <span class="line" id="L3041"> out1[<span class="tok-number">26</span>] = x53;</span> <span class="line" id="L3042"> out1[<span class="tok-number">27</span>] = x55;</span> <span class="line" id="L3043"> out1[<span class="tok-number">28</span>] = x57;</span> <span class="line" id="L3044"> out1[<span class="tok-number">29</span>] = x59;</span> <span class="line" id="L3045"> out1[<span class="tok-number">30</span>] = x61;</span> <span class="line" id="L3046"> out1[<span class="tok-number">31</span>] = x62;</span> <span class="line" id="L3047"> out1[<span class="tok-number">32</span>] = x63;</span> <span class="line" id="L3048"> out1[<span class="tok-number">33</span>] = x65;</span> <span class="line" id="L3049"> out1[<span class="tok-number">34</span>] = x67;</span> <span class="line" id="L3050"> out1[<span class="tok-number">35</span>] = x69;</span> <span class="line" id="L3051"> out1[<span class="tok-number">36</span>] = x71;</span> <span class="line" id="L3052"> out1[<span class="tok-number">37</span>] = x73;</span> <span class="line" id="L3053"> out1[<span class="tok-number">38</span>] = x75;</span> <span class="line" id="L3054"> out1[<span class="tok-number">39</span>] = x76;</span> <span class="line" id="L3055"> out1[<span class="tok-number">40</span>] = x77;</span> <span class="line" id="L3056"> out1[<span class="tok-number">41</span>] = x79;</span> <span class="line" id="L3057"> out1[<span class="tok-number">42</span>] = x81;</span> <span class="line" id="L3058"> out1[<span class="tok-number">43</span>] = x83;</span> <span class="line" id="L3059"> out1[<span class="tok-number">44</span>] = x85;</span> <span class="line" id="L3060"> out1[<span class="tok-number">45</span>] = x87;</span> <span class="line" id="L3061"> out1[<span class="tok-number">46</span>] = x89;</span> <span class="line" id="L3062"> out1[<span class="tok-number">47</span>] = x90;</span> <span class="line" id="L3063">}</span> <span class="line" id="L3064"></span> <span class="line" id="L3065"><span class="tok-comment">/// The function fromBytes deserializes a field element NOT in the Montgomery domain from bytes in little-endian order.</span></span> <span class="line" id="L3066"><span class="tok-comment">///</span></span> <span class="line" id="L3067"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L3068"><span class="tok-comment">/// 0 ≤ bytes_eval arg1 < m</span></span> <span class="line" id="L3069"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L3070"><span class="tok-comment">/// eval out1 mod m = bytes_eval arg1 mod m</span></span> <span class="line" id="L3071"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L3072"><span class="tok-comment">///</span></span> <span class="line" id="L3073"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L3074"><span class="tok-comment">/// arg1: [[0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff]]</span></span> <span class="line" id="L3075"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L3076"><span class="tok-comment">/// out1: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L3077"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromBytes</span>(out1: [<span class="tok-number">6</span>]<span class="tok-type">u64</span>, arg1: [<span class="tok-number">48</span>]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L3078"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L3079"></span> <span class="line" id="L3080"> <span class="tok-kw">const</span> x1 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">47</span>])) << <span class="tok-number">56</span>);</span> <span class="line" id="L3081"> <span class="tok-kw">const</span> x2 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">46</span>])) << <span class="tok-number">48</span>);</span> <span class="line" id="L3082"> <span class="tok-kw">const</span> x3 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">45</span>])) << <span class="tok-number">40</span>);</span> <span class="line" id="L3083"> <span class="tok-kw">const</span> x4 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">44</span>])) << <span class="tok-number">32</span>);</span> <span class="line" id="L3084"> <span class="tok-kw">const</span> x5 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">43</span>])) << <span class="tok-number">24</span>);</span> <span class="line" id="L3085"> <span class="tok-kw">const</span> x6 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">42</span>])) << <span class="tok-number">16</span>);</span> <span class="line" id="L3086"> <span class="tok-kw">const</span> x7 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">41</span>])) << <span class="tok-number">8</span>);</span> <span class="line" id="L3087"> <span class="tok-kw">const</span> x8 = (arg1[<span class="tok-number">40</span>]);</span> <span class="line" id="L3088"> <span class="tok-kw">const</span> x9 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">39</span>])) << <span class="tok-number">56</span>);</span> <span class="line" id="L3089"> <span class="tok-kw">const</span> x10 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">38</span>])) << <span class="tok-number">48</span>);</span> <span class="line" id="L3090"> <span class="tok-kw">const</span> x11 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">37</span>])) << <span class="tok-number">40</span>);</span> <span class="line" id="L3091"> <span class="tok-kw">const</span> x12 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">36</span>])) << <span class="tok-number">32</span>);</span> <span class="line" id="L3092"> <span class="tok-kw">const</span> x13 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">35</span>])) << <span class="tok-number">24</span>);</span> <span class="line" id="L3093"> <span class="tok-kw">const</span> x14 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">34</span>])) << <span class="tok-number">16</span>);</span> <span class="line" id="L3094"> <span class="tok-kw">const</span> x15 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">33</span>])) << <span class="tok-number">8</span>);</span> <span class="line" id="L3095"> <span class="tok-kw">const</span> x16 = (arg1[<span class="tok-number">32</span>]);</span> <span class="line" id="L3096"> <span class="tok-kw">const</span> x17 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">31</span>])) << <span class="tok-number">56</span>);</span> <span class="line" id="L3097"> <span class="tok-kw">const</span> x18 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">30</span>])) << <span class="tok-number">48</span>);</span> <span class="line" id="L3098"> <span class="tok-kw">const</span> x19 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">29</span>])) << <span class="tok-number">40</span>);</span> <span class="line" id="L3099"> <span class="tok-kw">const</span> x20 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">28</span>])) << <span class="tok-number">32</span>);</span> <span class="line" id="L3100"> <span class="tok-kw">const</span> x21 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">27</span>])) << <span class="tok-number">24</span>);</span> <span class="line" id="L3101"> <span class="tok-kw">const</span> x22 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">26</span>])) << <span class="tok-number">16</span>);</span> <span class="line" id="L3102"> <span class="tok-kw">const</span> x23 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">25</span>])) << <span class="tok-number">8</span>);</span> <span class="line" id="L3103"> <span class="tok-kw">const</span> x24 = (arg1[<span class="tok-number">24</span>]);</span> <span class="line" id="L3104"> <span class="tok-kw">const</span> x25 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">23</span>])) << <span class="tok-number">56</span>);</span> <span class="line" id="L3105"> <span class="tok-kw">const</span> x26 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">22</span>])) << <span class="tok-number">48</span>);</span> <span class="line" id="L3106"> <span class="tok-kw">const</span> x27 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">21</span>])) << <span class="tok-number">40</span>);</span> <span class="line" id="L3107"> <span class="tok-kw">const</span> x28 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">20</span>])) << <span class="tok-number">32</span>);</span> <span class="line" id="L3108"> <span class="tok-kw">const</span> x29 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">19</span>])) << <span class="tok-number">24</span>);</span> <span class="line" id="L3109"> <span class="tok-kw">const</span> x30 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">18</span>])) << <span class="tok-number">16</span>);</span> <span class="line" id="L3110"> <span class="tok-kw">const</span> x31 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">17</span>])) << <span class="tok-number">8</span>);</span> <span class="line" id="L3111"> <span class="tok-kw">const</span> x32 = (arg1[<span class="tok-number">16</span>]);</span> <span class="line" id="L3112"> <span class="tok-kw">const</span> x33 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">15</span>])) << <span class="tok-number">56</span>);</span> <span class="line" id="L3113"> <span class="tok-kw">const</span> x34 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">14</span>])) << <span class="tok-number">48</span>);</span> <span class="line" id="L3114"> <span class="tok-kw">const</span> x35 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">13</span>])) << <span class="tok-number">40</span>);</span> <span class="line" id="L3115"> <span class="tok-kw">const</span> x36 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">12</span>])) << <span class="tok-number">32</span>);</span> <span class="line" id="L3116"> <span class="tok-kw">const</span> x37 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">11</span>])) << <span class="tok-number">24</span>);</span> <span class="line" id="L3117"> <span class="tok-kw">const</span> x38 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">10</span>])) << <span class="tok-number">16</span>);</span> <span class="line" id="L3118"> <span class="tok-kw">const</span> x39 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">9</span>])) << <span class="tok-number">8</span>);</span> <span class="line" id="L3119"> <span class="tok-kw">const</span> x40 = (arg1[<span class="tok-number">8</span>]);</span> <span class="line" id="L3120"> <span class="tok-kw">const</span> x41 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">7</span>])) << <span class="tok-number">56</span>);</span> <span class="line" id="L3121"> <span class="tok-kw">const</span> x42 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">6</span>])) << <span class="tok-number">48</span>);</span> <span class="line" id="L3122"> <span class="tok-kw">const</span> x43 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">5</span>])) << <span class="tok-number">40</span>);</span> <span class="line" id="L3123"> <span class="tok-kw">const</span> x44 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">4</span>])) << <span class="tok-number">32</span>);</span> <span class="line" id="L3124"> <span class="tok-kw">const</span> x45 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">3</span>])) << <span class="tok-number">24</span>);</span> <span class="line" id="L3125"> <span class="tok-kw">const</span> x46 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">2</span>])) << <span class="tok-number">16</span>);</span> <span class="line" id="L3126"> <span class="tok-kw">const</span> x47 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">1</span>])) << <span class="tok-number">8</span>);</span> <span class="line" id="L3127"> <span class="tok-kw">const</span> x48 = (arg1[<span class="tok-number">0</span>]);</span> <span class="line" id="L3128"> <span class="tok-kw">const</span> x49 = (x47 + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x48));</span> <span class="line" id="L3129"> <span class="tok-kw">const</span> x50 = (x46 + x49);</span> <span class="line" id="L3130"> <span class="tok-kw">const</span> x51 = (x45 + x50);</span> <span class="line" id="L3131"> <span class="tok-kw">const</span> x52 = (x44 + x51);</span> <span class="line" id="L3132"> <span class="tok-kw">const</span> x53 = (x43 + x52);</span> <span class="line" id="L3133"> <span class="tok-kw">const</span> x54 = (x42 + x53);</span> <span class="line" id="L3134"> <span class="tok-kw">const</span> x55 = (x41 + x54);</span> <span class="line" id="L3135"> <span class="tok-kw">const</span> x56 = (x39 + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x40));</span> <span class="line" id="L3136"> <span class="tok-kw">const</span> x57 = (x38 + x56);</span> <span class="line" id="L3137"> <span class="tok-kw">const</span> x58 = (x37 + x57);</span> <span class="line" id="L3138"> <span class="tok-kw">const</span> x59 = (x36 + x58);</span> <span class="line" id="L3139"> <span class="tok-kw">const</span> x60 = (x35 + x59);</span> <span class="line" id="L3140"> <span class="tok-kw">const</span> x61 = (x34 + x60);</span> <span class="line" id="L3141"> <span class="tok-kw">const</span> x62 = (x33 + x61);</span> <span class="line" id="L3142"> <span class="tok-kw">const</span> x63 = (x31 + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x32));</span> <span class="line" id="L3143"> <span class="tok-kw">const</span> x64 = (x30 + x63);</span> <span class="line" id="L3144"> <span class="tok-kw">const</span> x65 = (x29 + x64);</span> <span class="line" id="L3145"> <span class="tok-kw">const</span> x66 = (x28 + x65);</span> <span class="line" id="L3146"> <span class="tok-kw">const</span> x67 = (x27 + x66);</span> <span class="line" id="L3147"> <span class="tok-kw">const</span> x68 = (x26 + x67);</span> <span class="line" id="L3148"> <span class="tok-kw">const</span> x69 = (x25 + x68);</span> <span class="line" id="L3149"> <span class="tok-kw">const</span> x70 = (x23 + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x24));</span> <span class="line" id="L3150"> <span class="tok-kw">const</span> x71 = (x22 + x70);</span> <span class="line" id="L3151"> <span class="tok-kw">const</span> x72 = (x21 + x71);</span> <span class="line" id="L3152"> <span class="tok-kw">const</span> x73 = (x20 + x72);</span> <span class="line" id="L3153"> <span class="tok-kw">const</span> x74 = (x19 + x73);</span> <span class="line" id="L3154"> <span class="tok-kw">const</span> x75 = (x18 + x74);</span> <span class="line" id="L3155"> <span class="tok-kw">const</span> x76 = (x17 + x75);</span> <span class="line" id="L3156"> <span class="tok-kw">const</span> x77 = (x15 + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x16));</span> <span class="line" id="L3157"> <span class="tok-kw">const</span> x78 = (x14 + x77);</span> <span class="line" id="L3158"> <span class="tok-kw">const</span> x79 = (x13 + x78);</span> <span class="line" id="L3159"> <span class="tok-kw">const</span> x80 = (x12 + x79);</span> <span class="line" id="L3160"> <span class="tok-kw">const</span> x81 = (x11 + x80);</span> <span class="line" id="L3161"> <span class="tok-kw">const</span> x82 = (x10 + x81);</span> <span class="line" id="L3162"> <span class="tok-kw">const</span> x83 = (x9 + x82);</span> <span class="line" id="L3163"> <span class="tok-kw">const</span> x84 = (x7 + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x8));</span> <span class="line" id="L3164"> <span class="tok-kw">const</span> x85 = (x6 + x84);</span> <span class="line" id="L3165"> <span class="tok-kw">const</span> x86 = (x5 + x85);</span> <span class="line" id="L3166"> <span class="tok-kw">const</span> x87 = (x4 + x86);</span> <span class="line" id="L3167"> <span class="tok-kw">const</span> x88 = (x3 + x87);</span> <span class="line" id="L3168"> <span class="tok-kw">const</span> x89 = (x2 + x88);</span> <span class="line" id="L3169"> <span class="tok-kw">const</span> x90 = (x1 + x89);</span> <span class="line" id="L3170"> out1[<span class="tok-number">0</span>] = x55;</span> <span class="line" id="L3171"> out1[<span class="tok-number">1</span>] = x62;</span> <span class="line" id="L3172"> out1[<span class="tok-number">2</span>] = x69;</span> <span class="line" id="L3173"> out1[<span class="tok-number">3</span>] = x76;</span> <span class="line" id="L3174"> out1[<span class="tok-number">4</span>] = x83;</span> <span class="line" id="L3175"> out1[<span class="tok-number">5</span>] = x90;</span> <span class="line" id="L3176">}</span> <span class="line" id="L3177"></span> <span class="line" id="L3178"><span class="tok-comment">/// The function setOne returns the field element one in the Montgomery domain.</span></span> <span class="line" id="L3179"><span class="tok-comment">///</span></span> <span class="line" id="L3180"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L3181"><span class="tok-comment">/// eval (from_montgomery out1) mod m = 1 mod m</span></span> <span class="line" id="L3182"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L3183"><span class="tok-comment">///</span></span> <span class="line" id="L3184"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">setOne</span>(out1: MontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L3185"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L3186"></span> <span class="line" id="L3187"> out1[<span class="tok-number">0</span>] = <span class="tok-number">0xffffffff00000001</span>;</span> <span class="line" id="L3188"> out1[<span class="tok-number">1</span>] = <span class="tok-number">0xffffffff</span>;</span> <span class="line" id="L3189"> out1[<span class="tok-number">2</span>] = <span class="tok-number">0x1</span>;</span> <span class="line" id="L3190"> out1[<span class="tok-number">3</span>] = <span class="tok-number">0x0</span>;</span> <span class="line" id="L3191"> out1[<span class="tok-number">4</span>] = <span class="tok-number">0x0</span>;</span> <span class="line" id="L3192"> out1[<span class="tok-number">5</span>] = <span class="tok-number">0x0</span>;</span> <span class="line" id="L3193">}</span> <span class="line" id="L3194"></span> <span class="line" id="L3195"><span class="tok-comment">/// The function msat returns the saturated representation of the prime modulus.</span></span> <span class="line" id="L3196"><span class="tok-comment">///</span></span> <span class="line" id="L3197"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L3198"><span class="tok-comment">/// twos_complement_eval out1 = m</span></span> <span class="line" id="L3199"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L3200"><span class="tok-comment">///</span></span> <span class="line" id="L3201"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L3202"><span class="tok-comment">/// out1: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L3203"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">msat</span>(out1: [<span class="tok-number">7</span>]<span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L3204"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L3205"></span> <span class="line" id="L3206"> out1[<span class="tok-number">0</span>] = <span class="tok-number">0xffffffff</span>;</span> <span class="line" id="L3207"> out1[<span class="tok-number">1</span>] = <span class="tok-number">0xffffffff00000000</span>;</span> <span class="line" id="L3208"> out1[<span class="tok-number">2</span>] = <span class="tok-number">0xfffffffffffffffe</span>;</span> <span class="line" id="L3209"> out1[<span class="tok-number">3</span>] = <span class="tok-number">0xffffffffffffffff</span>;</span> <span class="line" id="L3210"> out1[<span class="tok-number">4</span>] = <span class="tok-number">0xffffffffffffffff</span>;</span> <span class="line" id="L3211"> out1[<span class="tok-number">5</span>] = <span class="tok-number">0xffffffffffffffff</span>;</span> <span class="line" id="L3212"> out1[<span class="tok-number">6</span>] = <span class="tok-number">0x0</span>;</span> <span class="line" id="L3213">}</span> <span class="line" id="L3214"></span> <span class="line" id="L3215"><span class="tok-comment">/// The function divstep computes a divstep.</span></span> <span class="line" id="L3216"><span class="tok-comment">///</span></span> <span class="line" id="L3217"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L3218"><span class="tok-comment">/// 0 ≤ eval arg4 < m</span></span> <span class="line" id="L3219"><span class="tok-comment">/// 0 ≤ eval arg5 < m</span></span> <span class="line" id="L3220"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L3221"><span class="tok-comment">/// out1 = (if 0 < arg1 ∧ (twos_complement_eval arg3) is odd then 1 - arg1 else 1 + arg1)</span></span> <span class="line" id="L3222"><span class="tok-comment">/// twos_complement_eval out2 = (if 0 < arg1 ∧ (twos_complement_eval arg3) is odd then twos_complement_eval arg3 else twos_complement_eval arg2)</span></span> <span class="line" id="L3223"><span class="tok-comment">/// twos_complement_eval out3 = (if 0 < arg1 ∧ (twos_complement_eval arg3) is odd then ⌊(twos_complement_eval arg3 - twos_complement_eval arg2) / 2⌋ else ⌊(twos_complement_eval arg3 + (twos_complement_eval arg3 mod 2) * twos_complement_eval arg2) / 2⌋)</span></span> <span class="line" id="L3224"><span class="tok-comment">/// eval (from_montgomery out4) mod m = (if 0 < arg1 ∧ (twos_complement_eval arg3) is odd then (2 * eval (from_montgomery arg5)) mod m else (2 * eval (from_montgomery arg4)) mod m)</span></span> <span class="line" id="L3225"><span class="tok-comment">/// eval (from_montgomery out5) mod m = (if 0 < arg1 ∧ (twos_complement_eval arg3) is odd then (eval (from_montgomery arg4) - eval (from_montgomery arg4)) mod m else (eval (from_montgomery arg5) + (twos_complement_eval arg3 mod 2) * eval (from_montgomery arg4)) mod m)</span></span> <span class="line" id="L3226"><span class="tok-comment">/// 0 ≤ eval out5 < m</span></span> <span class="line" id="L3227"><span class="tok-comment">/// 0 ≤ eval out5 < m</span></span> <span class="line" id="L3228"><span class="tok-comment">/// 0 ≤ eval out2 < m</span></span> <span class="line" id="L3229"><span class="tok-comment">/// 0 ≤ eval out3 < m</span></span> <span class="line" id="L3230"><span class="tok-comment">///</span></span> <span class="line" id="L3231"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L3232"><span class="tok-comment">/// arg1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L3233"><span class="tok-comment">/// arg2: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L3234"><span class="tok-comment">/// arg3: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L3235"><span class="tok-comment">/// arg4: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L3236"><span class="tok-comment">/// arg5: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L3237"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L3238"><span class="tok-comment">/// out1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L3239"><span class="tok-comment">/// out2: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L3240"><span class="tok-comment">/// out3: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L3241"><span class="tok-comment">/// out4: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L3242"><span class="tok-comment">/// out5: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L3243"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">divstep</span>(out1: <span class="tok-type">u64</span>, out2: [<span class="tok-number">7</span>]<span class="tok-type">u64</span>, out3: [<span class="tok-number">7</span>]<span class="tok-type">u64</span>, out4: [<span class="tok-number">6</span>]<span class="tok-type">u64</span>, out5: [<span class="tok-number">6</span>]<span class="tok-type">u64</span>, arg1: <span class="tok-type">u64</span>, arg2: [<span class="tok-number">7</span>]<span class="tok-type">u64</span>, arg3: [<span class="tok-number">7</span>]<span class="tok-type">u64</span>, arg4: [<span class="tok-number">6</span>]<span class="tok-type">u64</span>, arg5: [<span class="tok-number">6</span>]<span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L3244"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L3245"></span> <span class="line" id="L3246"> <span class="tok-kw">var</span> x1: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3247"> <span class="tok-kw">var</span> x2: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3248"> addcarryxU64(&x1, &x2, <span class="tok-number">0x0</span>, (~arg1), <span class="tok-number">0x1</span>);</span> <span class="line" id="L3249"> <span class="tok-kw">const</span> x3 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u1</span>, <span class="tok-builtin">@truncate</span>((x1 >> <span class="tok-number">63</span>))) & <span class="tok-builtin">@as</span>(<span class="tok-type">u1</span>, <span class="tok-builtin">@truncate</span>(((arg3[<span class="tok-number">0</span>]) & <span class="tok-number">0x1</span>))));</span> <span class="line" id="L3250"> <span class="tok-kw">var</span> x4: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3251"> <span class="tok-kw">var</span> x5: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3252"> addcarryxU64(&x4, &x5, <span class="tok-number">0x0</span>, (~arg1), <span class="tok-number">0x1</span>);</span> <span class="line" id="L3253"> <span class="tok-kw">var</span> x6: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3254"> cmovznzU64(&x6, x3, arg1, x4);</span> <span class="line" id="L3255"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3256"> cmovznzU64(&x7, x3, (arg2[<span class="tok-number">0</span>]), (arg3[<span class="tok-number">0</span>]));</span> <span class="line" id="L3257"> <span class="tok-kw">var</span> x8: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3258"> cmovznzU64(&x8, x3, (arg2[<span class="tok-number">1</span>]), (arg3[<span class="tok-number">1</span>]));</span> <span class="line" id="L3259"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3260"> cmovznzU64(&x9, x3, (arg2[<span class="tok-number">2</span>]), (arg3[<span class="tok-number">2</span>]));</span> <span class="line" id="L3261"> <span class="tok-kw">var</span> x10: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3262"> cmovznzU64(&x10, x3, (arg2[<span class="tok-number">3</span>]), (arg3[<span class="tok-number">3</span>]));</span> <span class="line" id="L3263"> <span class="tok-kw">var</span> x11: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3264"> cmovznzU64(&x11, x3, (arg2[<span class="tok-number">4</span>]), (arg3[<span class="tok-number">4</span>]));</span> <span class="line" id="L3265"> <span class="tok-kw">var</span> x12: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3266"> cmovznzU64(&x12, x3, (arg2[<span class="tok-number">5</span>]), (arg3[<span class="tok-number">5</span>]));</span> <span class="line" id="L3267"> <span class="tok-kw">var</span> x13: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3268"> cmovznzU64(&x13, x3, (arg2[<span class="tok-number">6</span>]), (arg3[<span class="tok-number">6</span>]));</span> <span class="line" id="L3269"> <span class="tok-kw">var</span> x14: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3270"> <span class="tok-kw">var</span> x15: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3271"> addcarryxU64(&x14, &x15, <span class="tok-number">0x0</span>, <span class="tok-number">0x1</span>, (~(arg2[<span class="tok-number">0</span>])));</span> <span class="line" id="L3272"> <span class="tok-kw">var</span> x16: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3273"> <span class="tok-kw">var</span> x17: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3274"> addcarryxU64(&x16, &x17, x15, <span class="tok-number">0x0</span>, (~(arg2[<span class="tok-number">1</span>])));</span> <span class="line" id="L3275"> <span class="tok-kw">var</span> x18: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3276"> <span class="tok-kw">var</span> x19: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3277"> addcarryxU64(&x18, &x19, x17, <span class="tok-number">0x0</span>, (~(arg2[<span class="tok-number">2</span>])));</span> <span class="line" id="L3278"> <span class="tok-kw">var</span> x20: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3279"> <span class="tok-kw">var</span> x21: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3280"> addcarryxU64(&x20, &x21, x19, <span class="tok-number">0x0</span>, (~(arg2[<span class="tok-number">3</span>])));</span> <span class="line" id="L3281"> <span class="tok-kw">var</span> x22: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3282"> <span class="tok-kw">var</span> x23: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3283"> addcarryxU64(&x22, &x23, x21, <span class="tok-number">0x0</span>, (~(arg2[<span class="tok-number">4</span>])));</span> <span class="line" id="L3284"> <span class="tok-kw">var</span> x24: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3285"> <span class="tok-kw">var</span> x25: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3286"> addcarryxU64(&x24, &x25, x23, <span class="tok-number">0x0</span>, (~(arg2[<span class="tok-number">5</span>])));</span> <span class="line" id="L3287"> <span class="tok-kw">var</span> x26: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3288"> <span class="tok-kw">var</span> x27: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3289"> addcarryxU64(&x26, &x27, x25, <span class="tok-number">0x0</span>, (~(arg2[<span class="tok-number">6</span>])));</span> <span class="line" id="L3290"> <span class="tok-kw">var</span> x28: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3291"> cmovznzU64(&x28, x3, (arg3[<span class="tok-number">0</span>]), x14);</span> <span class="line" id="L3292"> <span class="tok-kw">var</span> x29: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3293"> cmovznzU64(&x29, x3, (arg3[<span class="tok-number">1</span>]), x16);</span> <span class="line" id="L3294"> <span class="tok-kw">var</span> x30: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3295"> cmovznzU64(&x30, x3, (arg3[<span class="tok-number">2</span>]), x18);</span> <span class="line" id="L3296"> <span class="tok-kw">var</span> x31: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3297"> cmovznzU64(&x31, x3, (arg3[<span class="tok-number">3</span>]), x20);</span> <span class="line" id="L3298"> <span class="tok-kw">var</span> x32: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3299"> cmovznzU64(&x32, x3, (arg3[<span class="tok-number">4</span>]), x22);</span> <span class="line" id="L3300"> <span class="tok-kw">var</span> x33: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3301"> cmovznzU64(&x33, x3, (arg3[<span class="tok-number">5</span>]), x24);</span> <span class="line" id="L3302"> <span class="tok-kw">var</span> x34: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3303"> cmovznzU64(&x34, x3, (arg3[<span class="tok-number">6</span>]), x26);</span> <span class="line" id="L3304"> <span class="tok-kw">var</span> x35: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3305"> cmovznzU64(&x35, x3, (arg4[<span class="tok-number">0</span>]), (arg5[<span class="tok-number">0</span>]));</span> <span class="line" id="L3306"> <span class="tok-kw">var</span> x36: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3307"> cmovznzU64(&x36, x3, (arg4[<span class="tok-number">1</span>]), (arg5[<span class="tok-number">1</span>]));</span> <span class="line" id="L3308"> <span class="tok-kw">var</span> x37: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3309"> cmovznzU64(&x37, x3, (arg4[<span class="tok-number">2</span>]), (arg5[<span class="tok-number">2</span>]));</span> <span class="line" id="L3310"> <span class="tok-kw">var</span> x38: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3311"> cmovznzU64(&x38, x3, (arg4[<span class="tok-number">3</span>]), (arg5[<span class="tok-number">3</span>]));</span> <span class="line" id="L3312"> <span class="tok-kw">var</span> x39: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3313"> cmovznzU64(&x39, x3, (arg4[<span class="tok-number">4</span>]), (arg5[<span class="tok-number">4</span>]));</span> <span class="line" id="L3314"> <span class="tok-kw">var</span> x40: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3315"> cmovznzU64(&x40, x3, (arg4[<span class="tok-number">5</span>]), (arg5[<span class="tok-number">5</span>]));</span> <span class="line" id="L3316"> <span class="tok-kw">var</span> x41: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3317"> <span class="tok-kw">var</span> x42: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3318"> addcarryxU64(&x41, &x42, <span class="tok-number">0x0</span>, x35, x35);</span> <span class="line" id="L3319"> <span class="tok-kw">var</span> x43: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3320"> <span class="tok-kw">var</span> x44: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3321"> addcarryxU64(&x43, &x44, x42, x36, x36);</span> <span class="line" id="L3322"> <span class="tok-kw">var</span> x45: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3323"> <span class="tok-kw">var</span> x46: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3324"> addcarryxU64(&x45, &x46, x44, x37, x37);</span> <span class="line" id="L3325"> <span class="tok-kw">var</span> x47: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3326"> <span class="tok-kw">var</span> x48: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3327"> addcarryxU64(&x47, &x48, x46, x38, x38);</span> <span class="line" id="L3328"> <span class="tok-kw">var</span> x49: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3329"> <span class="tok-kw">var</span> x50: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3330"> addcarryxU64(&x49, &x50, x48, x39, x39);</span> <span class="line" id="L3331"> <span class="tok-kw">var</span> x51: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3332"> <span class="tok-kw">var</span> x52: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3333"> addcarryxU64(&x51, &x52, x50, x40, x40);</span> <span class="line" id="L3334"> <span class="tok-kw">var</span> x53: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3335"> <span class="tok-kw">var</span> x54: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3336"> subborrowxU64(&x53, &x54, <span class="tok-number">0x0</span>, x41, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L3337"> <span class="tok-kw">var</span> x55: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3338"> <span class="tok-kw">var</span> x56: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3339"> subborrowxU64(&x55, &x56, x54, x43, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L3340"> <span class="tok-kw">var</span> x57: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3341"> <span class="tok-kw">var</span> x58: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3342"> subborrowxU64(&x57, &x58, x56, x45, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L3343"> <span class="tok-kw">var</span> x59: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3344"> <span class="tok-kw">var</span> x60: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3345"> subborrowxU64(&x59, &x60, x58, x47, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L3346"> <span class="tok-kw">var</span> x61: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3347"> <span class="tok-kw">var</span> x62: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3348"> subborrowxU64(&x61, &x62, x60, x49, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L3349"> <span class="tok-kw">var</span> x63: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3350"> <span class="tok-kw">var</span> x64: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3351"> subborrowxU64(&x63, &x64, x62, x51, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L3352"> <span class="tok-kw">var</span> x65: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3353"> <span class="tok-kw">var</span> x66: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3354"> subborrowxU64(&x65, &x66, x64, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x52), <span class="tok-number">0x0</span>);</span> <span class="line" id="L3355"> <span class="tok-kw">const</span> x67 = (arg4[<span class="tok-number">5</span>]);</span> <span class="line" id="L3356"> <span class="tok-kw">const</span> x68 = (arg4[<span class="tok-number">4</span>]);</span> <span class="line" id="L3357"> <span class="tok-kw">const</span> x69 = (arg4[<span class="tok-number">3</span>]);</span> <span class="line" id="L3358"> <span class="tok-kw">const</span> x70 = (arg4[<span class="tok-number">2</span>]);</span> <span class="line" id="L3359"> <span class="tok-kw">const</span> x71 = (arg4[<span class="tok-number">1</span>]);</span> <span class="line" id="L3360"> <span class="tok-kw">const</span> x72 = (arg4[<span class="tok-number">0</span>]);</span> <span class="line" id="L3361"> <span class="tok-kw">var</span> x73: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3362"> <span class="tok-kw">var</span> x74: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3363"> subborrowxU64(&x73, &x74, <span class="tok-number">0x0</span>, <span class="tok-number">0x0</span>, x72);</span> <span class="line" id="L3364"> <span class="tok-kw">var</span> x75: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3365"> <span class="tok-kw">var</span> x76: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3366"> subborrowxU64(&x75, &x76, x74, <span class="tok-number">0x0</span>, x71);</span> <span class="line" id="L3367"> <span class="tok-kw">var</span> x77: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3368"> <span class="tok-kw">var</span> x78: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3369"> subborrowxU64(&x77, &x78, x76, <span class="tok-number">0x0</span>, x70);</span> <span class="line" id="L3370"> <span class="tok-kw">var</span> x79: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3371"> <span class="tok-kw">var</span> x80: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3372"> subborrowxU64(&x79, &x80, x78, <span class="tok-number">0x0</span>, x69);</span> <span class="line" id="L3373"> <span class="tok-kw">var</span> x81: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3374"> <span class="tok-kw">var</span> x82: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3375"> subborrowxU64(&x81, &x82, x80, <span class="tok-number">0x0</span>, x68);</span> <span class="line" id="L3376"> <span class="tok-kw">var</span> x83: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3377"> <span class="tok-kw">var</span> x84: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3378"> subborrowxU64(&x83, &x84, x82, <span class="tok-number">0x0</span>, x67);</span> <span class="line" id="L3379"> <span class="tok-kw">var</span> x85: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3380"> cmovznzU64(&x85, x84, <span class="tok-number">0x0</span>, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L3381"> <span class="tok-kw">var</span> x86: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3382"> <span class="tok-kw">var</span> x87: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3383"> addcarryxU64(&x86, &x87, <span class="tok-number">0x0</span>, x73, (x85 & <span class="tok-number">0xffffffff</span>));</span> <span class="line" id="L3384"> <span class="tok-kw">var</span> x88: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3385"> <span class="tok-kw">var</span> x89: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3386"> addcarryxU64(&x88, &x89, x87, x75, (x85 & <span class="tok-number">0xffffffff00000000</span>));</span> <span class="line" id="L3387"> <span class="tok-kw">var</span> x90: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3388"> <span class="tok-kw">var</span> x91: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3389"> addcarryxU64(&x90, &x91, x89, x77, (x85 & <span class="tok-number">0xfffffffffffffffe</span>));</span> <span class="line" id="L3390"> <span class="tok-kw">var</span> x92: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3391"> <span class="tok-kw">var</span> x93: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3392"> addcarryxU64(&x92, &x93, x91, x79, x85);</span> <span class="line" id="L3393"> <span class="tok-kw">var</span> x94: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3394"> <span class="tok-kw">var</span> x95: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3395"> addcarryxU64(&x94, &x95, x93, x81, x85);</span> <span class="line" id="L3396"> <span class="tok-kw">var</span> x96: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3397"> <span class="tok-kw">var</span> x97: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3398"> addcarryxU64(&x96, &x97, x95, x83, x85);</span> <span class="line" id="L3399"> <span class="tok-kw">var</span> x98: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3400"> cmovznzU64(&x98, x3, (arg5[<span class="tok-number">0</span>]), x86);</span> <span class="line" id="L3401"> <span class="tok-kw">var</span> x99: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3402"> cmovznzU64(&x99, x3, (arg5[<span class="tok-number">1</span>]), x88);</span> <span class="line" id="L3403"> <span class="tok-kw">var</span> x100: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3404"> cmovznzU64(&x100, x3, (arg5[<span class="tok-number">2</span>]), x90);</span> <span class="line" id="L3405"> <span class="tok-kw">var</span> x101: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3406"> cmovznzU64(&x101, x3, (arg5[<span class="tok-number">3</span>]), x92);</span> <span class="line" id="L3407"> <span class="tok-kw">var</span> x102: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3408"> cmovznzU64(&x102, x3, (arg5[<span class="tok-number">4</span>]), x94);</span> <span class="line" id="L3409"> <span class="tok-kw">var</span> x103: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3410"> cmovznzU64(&x103, x3, (arg5[<span class="tok-number">5</span>]), x96);</span> <span class="line" id="L3411"> <span class="tok-kw">const</span> x104 = <span class="tok-builtin">@as</span>(<span class="tok-type">u1</span>, <span class="tok-builtin">@truncate</span>((x28 & <span class="tok-number">0x1</span>)));</span> <span class="line" id="L3412"> <span class="tok-kw">var</span> x105: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3413"> cmovznzU64(&x105, x104, <span class="tok-number">0x0</span>, x7);</span> <span class="line" id="L3414"> <span class="tok-kw">var</span> x106: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3415"> cmovznzU64(&x106, x104, <span class="tok-number">0x0</span>, x8);</span> <span class="line" id="L3416"> <span class="tok-kw">var</span> x107: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3417"> cmovznzU64(&x107, x104, <span class="tok-number">0x0</span>, x9);</span> <span class="line" id="L3418"> <span class="tok-kw">var</span> x108: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3419"> cmovznzU64(&x108, x104, <span class="tok-number">0x0</span>, x10);</span> <span class="line" id="L3420"> <span class="tok-kw">var</span> x109: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3421"> cmovznzU64(&x109, x104, <span class="tok-number">0x0</span>, x11);</span> <span class="line" id="L3422"> <span class="tok-kw">var</span> x110: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3423"> cmovznzU64(&x110, x104, <span class="tok-number">0x0</span>, x12);</span> <span class="line" id="L3424"> <span class="tok-kw">var</span> x111: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3425"> cmovznzU64(&x111, x104, <span class="tok-number">0x0</span>, x13);</span> <span class="line" id="L3426"> <span class="tok-kw">var</span> x112: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3427"> <span class="tok-kw">var</span> x113: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3428"> addcarryxU64(&x112, &x113, <span class="tok-number">0x0</span>, x28, x105);</span> <span class="line" id="L3429"> <span class="tok-kw">var</span> x114: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3430"> <span class="tok-kw">var</span> x115: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3431"> addcarryxU64(&x114, &x115, x113, x29, x106);</span> <span class="line" id="L3432"> <span class="tok-kw">var</span> x116: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3433"> <span class="tok-kw">var</span> x117: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3434"> addcarryxU64(&x116, &x117, x115, x30, x107);</span> <span class="line" id="L3435"> <span class="tok-kw">var</span> x118: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3436"> <span class="tok-kw">var</span> x119: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3437"> addcarryxU64(&x118, &x119, x117, x31, x108);</span> <span class="line" id="L3438"> <span class="tok-kw">var</span> x120: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3439"> <span class="tok-kw">var</span> x121: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3440"> addcarryxU64(&x120, &x121, x119, x32, x109);</span> <span class="line" id="L3441"> <span class="tok-kw">var</span> x122: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3442"> <span class="tok-kw">var</span> x123: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3443"> addcarryxU64(&x122, &x123, x121, x33, x110);</span> <span class="line" id="L3444"> <span class="tok-kw">var</span> x124: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3445"> <span class="tok-kw">var</span> x125: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3446"> addcarryxU64(&x124, &x125, x123, x34, x111);</span> <span class="line" id="L3447"> <span class="tok-kw">var</span> x126: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3448"> cmovznzU64(&x126, x104, <span class="tok-number">0x0</span>, x35);</span> <span class="line" id="L3449"> <span class="tok-kw">var</span> x127: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3450"> cmovznzU64(&x127, x104, <span class="tok-number">0x0</span>, x36);</span> <span class="line" id="L3451"> <span class="tok-kw">var</span> x128: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3452"> cmovznzU64(&x128, x104, <span class="tok-number">0x0</span>, x37);</span> <span class="line" id="L3453"> <span class="tok-kw">var</span> x129: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3454"> cmovznzU64(&x129, x104, <span class="tok-number">0x0</span>, x38);</span> <span class="line" id="L3455"> <span class="tok-kw">var</span> x130: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3456"> cmovznzU64(&x130, x104, <span class="tok-number">0x0</span>, x39);</span> <span class="line" id="L3457"> <span class="tok-kw">var</span> x131: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3458"> cmovznzU64(&x131, x104, <span class="tok-number">0x0</span>, x40);</span> <span class="line" id="L3459"> <span class="tok-kw">var</span> x132: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3460"> <span class="tok-kw">var</span> x133: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3461"> addcarryxU64(&x132, &x133, <span class="tok-number">0x0</span>, x98, x126);</span> <span class="line" id="L3462"> <span class="tok-kw">var</span> x134: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3463"> <span class="tok-kw">var</span> x135: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3464"> addcarryxU64(&x134, &x135, x133, x99, x127);</span> <span class="line" id="L3465"> <span class="tok-kw">var</span> x136: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3466"> <span class="tok-kw">var</span> x137: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3467"> addcarryxU64(&x136, &x137, x135, x100, x128);</span> <span class="line" id="L3468"> <span class="tok-kw">var</span> x138: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3469"> <span class="tok-kw">var</span> x139: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3470"> addcarryxU64(&x138, &x139, x137, x101, x129);</span> <span class="line" id="L3471"> <span class="tok-kw">var</span> x140: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3472"> <span class="tok-kw">var</span> x141: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3473"> addcarryxU64(&x140, &x141, x139, x102, x130);</span> <span class="line" id="L3474"> <span class="tok-kw">var</span> x142: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3475"> <span class="tok-kw">var</span> x143: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3476"> addcarryxU64(&x142, &x143, x141, x103, x131);</span> <span class="line" id="L3477"> <span class="tok-kw">var</span> x144: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3478"> <span class="tok-kw">var</span> x145: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3479"> subborrowxU64(&x144, &x145, <span class="tok-number">0x0</span>, x132, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L3480"> <span class="tok-kw">var</span> x146: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3481"> <span class="tok-kw">var</span> x147: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3482"> subborrowxU64(&x146, &x147, x145, x134, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L3483"> <span class="tok-kw">var</span> x148: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3484"> <span class="tok-kw">var</span> x149: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3485"> subborrowxU64(&x148, &x149, x147, x136, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L3486"> <span class="tok-kw">var</span> x150: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3487"> <span class="tok-kw">var</span> x151: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3488"> subborrowxU64(&x150, &x151, x149, x138, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L3489"> <span class="tok-kw">var</span> x152: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3490"> <span class="tok-kw">var</span> x153: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3491"> subborrowxU64(&x152, &x153, x151, x140, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L3492"> <span class="tok-kw">var</span> x154: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3493"> <span class="tok-kw">var</span> x155: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3494"> subborrowxU64(&x154, &x155, x153, x142, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L3495"> <span class="tok-kw">var</span> x156: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3496"> <span class="tok-kw">var</span> x157: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3497"> subborrowxU64(&x156, &x157, x155, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x143), <span class="tok-number">0x0</span>);</span> <span class="line" id="L3498"> <span class="tok-kw">var</span> x158: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3499"> <span class="tok-kw">var</span> x159: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3500"> addcarryxU64(&x158, &x159, <span class="tok-number">0x0</span>, x6, <span class="tok-number">0x1</span>);</span> <span class="line" id="L3501"> <span class="tok-kw">const</span> x160 = ((x112 >> <span class="tok-number">1</span>) \| ((x114 << <span class="tok-number">63</span>) & <span class="tok-number">0xffffffffffffffff</span>));</span> <span class="line" id="L3502"> <span class="tok-kw">const</span> x161 = ((x114 >> <span class="tok-number">1</span>) \| ((x116 << <span class="tok-number">63</span>) & <span class="tok-number">0xffffffffffffffff</span>));</span> <span class="line" id="L3503"> <span class="tok-kw">const</span> x162 = ((x116 >> <span class="tok-number">1</span>) \| ((x118 << <span class="tok-number">63</span>) & <span class="tok-number">0xffffffffffffffff</span>));</span> <span class="line" id="L3504"> <span class="tok-kw">const</span> x163 = ((x118 >> <span class="tok-number">1</span>) \| ((x120 << <span class="tok-number">63</span>) & <span class="tok-number">0xffffffffffffffff</span>));</span> <span class="line" id="L3505"> <span class="tok-kw">const</span> x164 = ((x120 >> <span class="tok-number">1</span>) \| ((x122 << <span class="tok-number">63</span>) & <span class="tok-number">0xffffffffffffffff</span>));</span> <span class="line" id="L3506"> <span class="tok-kw">const</span> x165 = ((x122 >> <span class="tok-number">1</span>) \| ((x124 << <span class="tok-number">63</span>) & <span class="tok-number">0xffffffffffffffff</span>));</span> <span class="line" id="L3507"> <span class="tok-kw">const</span> x166 = ((x124 & <span class="tok-number">0x8000000000000000</span>) \| (x124 >> <span class="tok-number">1</span>));</span> <span class="line" id="L3508"> <span class="tok-kw">var</span> x167: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3509"> cmovznzU64(&x167, x66, x53, x41);</span> <span class="line" id="L3510"> <span class="tok-kw">var</span> x168: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3511"> cmovznzU64(&x168, x66, x55, x43);</span> <span class="line" id="L3512"> <span class="tok-kw">var</span> x169: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3513"> cmovznzU64(&x169, x66, x57, x45);</span> <span class="line" id="L3514"> <span class="tok-kw">var</span> x170: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3515"> cmovznzU64(&x170, x66, x59, x47);</span> <span class="line" id="L3516"> <span class="tok-kw">var</span> x171: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3517"> cmovznzU64(&x171, x66, x61, x49);</span> <span class="line" id="L3518"> <span class="tok-kw">var</span> x172: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3519"> cmovznzU64(&x172, x66, x63, x51);</span> <span class="line" id="L3520"> <span class="tok-kw">var</span> x173: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3521"> cmovznzU64(&x173, x157, x144, x132);</span> <span class="line" id="L3522"> <span class="tok-kw">var</span> x174: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3523"> cmovznzU64(&x174, x157, x146, x134);</span> <span class="line" id="L3524"> <span class="tok-kw">var</span> x175: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3525"> cmovznzU64(&x175, x157, x148, x136);</span> <span class="line" id="L3526"> <span class="tok-kw">var</span> x176: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3527"> cmovznzU64(&x176, x157, x150, x138);</span> <span class="line" id="L3528"> <span class="tok-kw">var</span> x177: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3529"> cmovznzU64(&x177, x157, x152, x140);</span> <span class="line" id="L3530"> <span class="tok-kw">var</span> x178: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L3531"> cmovznzU64(&x178, x157, x154, x142);</span> <span class="line" id="L3532"> out1. = x158;</span> <span class="line" id="L3533"> out2[<span class="tok-number">0</span>] = x7;</span> <span class="line" id="L3534"> out2[<span class="tok-number">1</span>] = x8;</span> <span class="line" id="L3535"> out2[<span class="tok-number">2</span>] = x9;</span> <span class="line" id="L3536"> out2[<span class="tok-number">3</span>] = x10;</span> <span class="line" id="L3537"> out2[<span class="tok-number">4</span>] = x11;</span> <span class="line" id="L3538"> out2[<span class="tok-number">5</span>] = x12;</span> <span class="line" id="L3539"> out2[<span class="tok-number">6</span>] = x13;</span> <span class="line" id="L3540"> out3[<span class="tok-number">0</span>] = x160;</span> <span class="line" id="L3541"> out3[<span class="tok-number">1</span>] = x161;</span> <span class="line" id="L3542"> out3[<span class="tok-number">2</span>] = x162;</span> <span class="line" id="L3543"> out3[<span class="tok-number">3</span>] = x163;</span> <span class="line" id="L3544"> out3[<span class="tok-number">4</span>] = x164;</span> <span class="line" id="L3545"> out3[<span class="tok-number">5</span>] = x165;</span> <span class="line" id="L3546"> out3[<span class="tok-number">6</span>] = x166;</span> <span class="line" id="L3547"> out4[<span class="tok-number">0</span>] = x167;</span> <span class="line" id="L3548"> out4[<span class="tok-number">1</span>] = x168;</span> <span class="line" id="L3549"> out4[<span class="tok-number">2</span>] = x169;</span> <span class="line" id="L3550"> out4[<span class="tok-number">3</span>] = x170;</span> <span class="line" id="L3551"> out4[<span class="tok-number">4</span>] = x171;</span> <span class="line" id="L3552"> out4[<span class="tok-number">5</span>] = x172;</span> <span class="line" id="L3553"> out5[<span class="tok-number">0</span>] = x173;</span> <span class="line" id="L3554"> out5[<span class="tok-number">1</span>] = x174;</span> <span class="line" id="L3555"> out5[<span class="tok-number">2</span>] = x175;</span> <span class="line" id="L3556"> out5[<span class="tok-number">3</span>] = x176;</span> <span class="line" id="L3557"> out5[<span class="tok-number">4</span>] = x177;</span> <span class="line" id="L3558"> out5[<span class="tok-number">5</span>] = x178;</span> <span class="line" id="L3559">}</span> <span class="line" id="L3560"></span> <span class="line" id="L3561"><span class="tok-comment">/// The function divstepPrecomp returns the precomputed value for Bernstein-Yang-inversion (in montgomery form).</span></span> <span class="line" id="L3562"><span class="tok-comment">///</span></span> <span class="line" id="L3563"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L3564"><span class="tok-comment">/// eval (from_montgomery out1) = ⌊(m - 1) / 2⌋^(if ⌊log2 m⌋ + 1 < 46 then ⌊(49 * (⌊log2 m⌋ + 1) + 80) / 17⌋ else ⌊(49 * (⌊log2 m⌋ + 1) + 57) / 17⌋)</span></span> <span class="line" id="L3565"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L3566"><span class="tok-comment">///</span></span> <span class="line" id="L3567"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L3568"><span class="tok-comment">/// out1: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L3569"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">divstepPrecomp</span>(out1: *[<span class="tok-number">6</span>]<span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L3570"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L3571"></span> <span class="line" id="L3572"> out1[<span class="tok-number">0</span>] = <span class="tok-number">0xfff69400fff18fff</span>;</span> <span class="line" id="L3573"> out1[<span class="tok-number">1</span>] = <span class="tok-number">0x2b7feffffd3ff</span>;</span> <span class="line" id="L3574"> out1[<span class="tok-number">2</span>] = <span class="tok-number">0xfffedbfffffe97ff</span>;</span> <span class="line" id="L3575"> out1[<span class="tok-number">3</span>] = <span class="tok-number">0x2840000002fff</span>;</span> <span class="line" id="L3576"> out1[<span class="tok-number">4</span>] = <span class="tok-number">0x6040000050400</span>;</span> <span class="line" id="L3577"> out1[<span class="tok-number">5</span>] = <span class="tok-number">0xfffc480000038000</span>;</span> <span class="line" id="L3578">}</span> <span class="line" id="L3579"></span> </code></pre></body> </html>
repos/yazap/docs/src/std/crypto/pcurves	repos/yazap/docs/src/std/crypto/pcurves/p256/scalar.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/pcurves/p256/scalar.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> common = <span class="tok-builtin">@import</span>(<span class="tok-str">"../common.zig"</span>);</span> <span class="line" id="L3"><span class="tok-kw">const</span> crypto = std.crypto;</span> <span class="line" id="L4"><span class="tok-kw">const</span> debug = std.debug;</span> <span class="line" id="L5"><span class="tok-kw">const</span> math = std.math;</span> <span class="line" id="L6"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L7"></span> <span class="line" id="L8"><span class="tok-kw">const</span> Field = common.Field;</span> <span class="line" id="L9"></span> <span class="line" id="L10"><span class="tok-kw">const</span> NonCanonicalError = std.crypto.errors.NonCanonicalError;</span> <span class="line" id="L11"><span class="tok-kw">const</span> NotSquareError = std.crypto.errors.NotSquareError;</span> <span class="line" id="L12"></span> <span class="line" id="L13"><span class="tok-comment">/// Number of bytes required to encode a scalar.</span></span> <span class="line" id="L14"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> encoded_length = <span class="tok-number">32</span>;</span> <span class="line" id="L15"></span> <span class="line" id="L16"><span class="tok-comment">/// A compressed scalar, in canonical form.</span></span> <span class="line" id="L17"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> CompressedScalar = [encoded_length]<span class="tok-type">u8</span>;</span> <span class="line" id="L18"></span> <span class="line" id="L19"><span class="tok-kw">const</span> Fe = Field(.{</span> <span class="line" id="L20"> .fiat = <span class="tok-builtin">@import</span>(<span class="tok-str">"p256_scalar_64.zig"</span>),</span> <span class="line" id="L21"> .field_order = <span class="tok-number">115792089210356248762697446949407573529996955224135760342422259061068512044369</span>,</span> <span class="line" id="L22"> .field_bits = <span class="tok-number">256</span>,</span> <span class="line" id="L23"> .saturated_bits = <span class="tok-number">256</span>,</span> <span class="line" id="L24"> .encoded_length = encoded_length,</span> <span class="line" id="L25">});</span> <span class="line" id="L26"></span> <span class="line" id="L27"><span class="tok-comment">/// The scalar field order.</span></span> <span class="line" id="L28"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> field_order = Fe.field_order;</span> <span class="line" id="L29"></span> <span class="line" id="L30"><span class="tok-comment">/// Reject a scalar whose encoding is not canonical.</span></span> <span class="line" id="L31"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">rejectNonCanonical</span>(s: CompressedScalar, endian: std.builtin.Endian) NonCanonicalError!<span class="tok-type">void</span> {</span> <span class="line" id="L32"> <span class="tok-kw">return</span> Fe.rejectNonCanonical(s, endian);</span> <span class="line" id="L33">}</span> <span class="line" id="L34"></span> <span class="line" id="L35"><span class="tok-comment">/// Reduce a 48-bytes scalar to the field size.</span></span> <span class="line" id="L36"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">reduce48</span>(s: [<span class="tok-number">48</span>]<span class="tok-type">u8</span>, endian: std.builtin.Endian) CompressedScalar {</span> <span class="line" id="L37"> <span class="tok-kw">return</span> Scalar.fromBytes48(s, endian).toBytes(endian);</span> <span class="line" id="L38">}</span> <span class="line" id="L39"></span> <span class="line" id="L40"><span class="tok-comment">/// Reduce a 64-bytes scalar to the field size.</span></span> <span class="line" id="L41"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">reduce64</span>(s: [<span class="tok-number">64</span>]<span class="tok-type">u8</span>, endian: std.builtin.Endian) CompressedScalar {</span> <span class="line" id="L42"> <span class="tok-kw">return</span> ScalarDouble.fromBytes64(s, endian).toBytes(endian);</span> <span class="line" id="L43">}</span> <span class="line" id="L44"></span> <span class="line" id="L45"><span class="tok-comment">/// Return ab (mod L)</span></span> <span class="line" id="L46"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">mul</span>(a: CompressedScalar, b: CompressedScalar, endian: std.builtin.Endian) NonCanonicalError!CompressedScalar {</span> <span class="line" id="L47"> <span class="tok-kw">return</span> (<span class="tok-kw">try</span> Scalar.fromBytes(a, endian)).mul(<span class="tok-kw">try</span> Scalar.fromBytes(b, endian)).toBytes(endian);</span> <span class="line" id="L48">}</span> <span class="line" id="L49"></span> <span class="line" id="L50"><span class="tok-comment">/// Return ab+c (mod L)</span></span> <span class="line" id="L51"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">mulAdd</span>(a: CompressedScalar, b: CompressedScalar, c: CompressedScalar, endian: std.builtin.Endian) NonCanonicalError!CompressedScalar {</span> <span class="line" id="L52"> <span class="tok-kw">return</span> (<span class="tok-kw">try</span> Scalar.fromBytes(a, endian)).mul(<span class="tok-kw">try</span> Scalar.fromBytes(b, endian)).add(<span class="tok-kw">try</span> Scalar.fromBytes(c, endian)).toBytes(endian);</span> <span class="line" id="L53">}</span> <span class="line" id="L54"></span> <span class="line" id="L55"><span class="tok-comment">/// Return a+b (mod L)</span></span> <span class="line" id="L56"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">add</span>(a: CompressedScalar, b: CompressedScalar, endian: std.builtin.Endian) NonCanonicalError!CompressedScalar {</span> <span class="line" id="L57"> <span class="tok-kw">return</span> (<span class="tok-kw">try</span> Scalar.fromBytes(a, endian)).add(<span class="tok-kw">try</span> Scalar.fromBytes(b, endian)).toBytes(endian);</span> <span class="line" id="L58">}</span> <span class="line" id="L59"></span> <span class="line" id="L60"><span class="tok-comment">/// Return -s (mod L)</span></span> <span class="line" id="L61"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">neg</span>(s: CompressedScalar, endian: std.builtin.Endian) NonCanonicalError!CompressedScalar {</span> <span class="line" id="L62"> <span class="tok-kw">return</span> (<span class="tok-kw">try</span> Scalar.fromBytes(s, endian)).neg().toBytes(endian);</span> <span class="line" id="L63">}</span> <span class="line" id="L64"></span> <span class="line" id="L65"><span class="tok-comment">/// Return (a-b) (mod L)</span></span> <span class="line" id="L66"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">sub</span>(a: CompressedScalar, b: CompressedScalar, endian: std.builtin.Endian) NonCanonicalError!CompressedScalar {</span> <span class="line" id="L67"> <span class="tok-kw">return</span> (<span class="tok-kw">try</span> Scalar.fromBytes(a, endian)).sub(<span class="tok-kw">try</span> Scalar.fromBytes(b, endian)).toBytes(endian);</span> <span class="line" id="L68">}</span> <span class="line" id="L69"></span> <span class="line" id="L70"><span class="tok-comment">/// Return a random scalar</span></span> <span class="line" id="L71"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">random</span>(endian: std.builtin.Endian) CompressedScalar {</span> <span class="line" id="L72"> <span class="tok-kw">return</span> Scalar.random().toBytes(endian);</span> <span class="line" id="L73">}</span> <span class="line" id="L74"></span> <span class="line" id="L75"><span class="tok-comment">/// A scalar in unpacked representation.</span></span> <span class="line" id="L76"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Scalar = <span class="tok-kw">struct</span> {</span> <span class="line" id="L77"> fe: Fe,</span> <span class="line" id="L78"></span> <span class="line" id="L79"> <span class="tok-comment">/// Zero.</span></span> <span class="line" id="L80"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> zero = Scalar{ .fe = Fe.zero };</span> <span class="line" id="L81"></span> <span class="line" id="L82"> <span class="tok-comment">/// One.</span></span> <span class="line" id="L83"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> one = Scalar{ .fe = Fe.one };</span> <span class="line" id="L84"></span> <span class="line" id="L85"> <span class="tok-comment">/// Unpack a serialized representation of a scalar.</span></span> <span class="line" id="L86"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromBytes</span>(s: CompressedScalar, endian: std.builtin.Endian) NonCanonicalError!Scalar {</span> <span class="line" id="L87"> <span class="tok-kw">return</span> Scalar{ .fe = <span class="tok-kw">try</span> Fe.fromBytes(s, endian) };</span> <span class="line" id="L88"> }</span> <span class="line" id="L89"></span> <span class="line" id="L90"> <span class="tok-comment">/// Reduce a 384 bit input to the field size.</span></span> <span class="line" id="L91"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromBytes48</span>(s: [<span class="tok-number">48</span>]<span class="tok-type">u8</span>, endian: std.builtin.Endian) Scalar {</span> <span class="line" id="L92"> <span class="tok-kw">const</span> t = ScalarDouble.fromBytes(<span class="tok-number">384</span>, s, endian);</span> <span class="line" id="L93"> <span class="tok-kw">return</span> t.reduce(<span class="tok-number">384</span>);</span> <span class="line" id="L94"> }</span> <span class="line" id="L95"></span> <span class="line" id="L96"> <span class="tok-comment">/// Reduce a 512 bit input to the field size.</span></span> <span class="line" id="L97"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromBytes64</span>(s: [<span class="tok-number">64</span>]<span class="tok-type">u8</span>, endian: std.builtin.Endian) Scalar {</span> <span class="line" id="L98"> <span class="tok-kw">const</span> t = ScalarDouble.fromBytes(<span class="tok-number">512</span>, s, endian);</span> <span class="line" id="L99"> <span class="tok-kw">return</span> t.reduce(<span class="tok-number">512</span>);</span> <span class="line" id="L100"> }</span> <span class="line" id="L101"></span> <span class="line" id="L102"> <span class="tok-comment">/// Pack a scalar into bytes.</span></span> <span class="line" id="L103"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toBytes</span>(n: Scalar, endian: std.builtin.Endian) CompressedScalar {</span> <span class="line" id="L104"> <span class="tok-kw">return</span> n.fe.toBytes(endian);</span> <span class="line" id="L105"> }</span> <span class="line" id="L106"></span> <span class="line" id="L107"> <span class="tok-comment">/// Return true if the scalar is zero..</span></span> <span class="line" id="L108"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">isZero</span>(n: Scalar) <span class="tok-type">bool</span> {</span> <span class="line" id="L109"> <span class="tok-kw">return</span> n.fe.isZero();</span> <span class="line" id="L110"> }</span> <span class="line" id="L111"></span> <span class="line" id="L112"> <span class="tok-comment">/// Return true if the scalar is odd.</span></span> <span class="line" id="L113"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">isOdd</span>(n: Scalar) <span class="tok-type">bool</span> {</span> <span class="line" id="L114"> <span class="tok-kw">return</span> n.fe.isOdd();</span> <span class="line" id="L115"> }</span> <span class="line" id="L116"></span> <span class="line" id="L117"> <span class="tok-comment">/// Return true if a and b are equivalent.</span></span> <span class="line" id="L118"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">equivalent</span>(a: Scalar, b: Scalar) <span class="tok-type">bool</span> {</span> <span class="line" id="L119"> <span class="tok-kw">return</span> a.fe.equivalent(b.fe);</span> <span class="line" id="L120"> }</span> <span class="line" id="L121"></span> <span class="line" id="L122"> <span class="tok-comment">/// Compute x+y (mod L)</span></span> <span class="line" id="L123"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">add</span>(x: Scalar, y: Scalar) Scalar {</span> <span class="line" id="L124"> <span class="tok-kw">return</span> Scalar{ .fe = x.fe.add(y.fe) };</span> <span class="line" id="L125"> }</span> <span class="line" id="L126"></span> <span class="line" id="L127"> <span class="tok-comment">/// Compute x-y (mod L)</span></span> <span class="line" id="L128"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">sub</span>(x: Scalar, y: Scalar) Scalar {</span> <span class="line" id="L129"> <span class="tok-kw">return</span> Scalar{ .fe = x.fe.sub(y.fe) };</span> <span class="line" id="L130"> }</span> <span class="line" id="L131"></span> <span class="line" id="L132"> <span class="tok-comment">/// Compute 2n (mod L)</span></span> <span class="line" id="L133"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">dbl</span>(n: Scalar) Scalar {</span> <span class="line" id="L134"> <span class="tok-kw">return</span> Scalar{ .fe = n.fe.dbl() };</span> <span class="line" id="L135"> }</span> <span class="line" id="L136"></span> <span class="line" id="L137"> <span class="tok-comment">/// Compute xy (mod L)</span></span> <span class="line" id="L138"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">mul</span>(x: Scalar, y: Scalar) Scalar {</span> <span class="line" id="L139"> <span class="tok-kw">return</span> Scalar{ .fe = x.fe.mul(y.fe) };</span> <span class="line" id="L140"> }</span> <span class="line" id="L141"></span> <span class="line" id="L142"> <span class="tok-comment">/// Compute x^2 (mod L)</span></span> <span class="line" id="L143"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">sq</span>(n: Scalar) Scalar {</span> <span class="line" id="L144"> <span class="tok-kw">return</span> Scalar{ .fe = n.fe.sq() };</span> <span class="line" id="L145"> }</span> <span class="line" id="L146"></span> <span class="line" id="L147"> <span class="tok-comment">/// Compute x^n (mod L)</span></span> <span class="line" id="L148"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">pow</span>(a: Scalar, <span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>, <span class="tok-kw">comptime</span> n: T) Scalar {</span> <span class="line" id="L149"> <span class="tok-kw">return</span> Scalar{ .fe = a.fe.pow(n) };</span> <span class="line" id="L150"> }</span> <span class="line" id="L151"></span> <span class="line" id="L152"> <span class="tok-comment">/// Compute -x (mod L)</span></span> <span class="line" id="L153"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">neg</span>(n: Scalar) Scalar {</span> <span class="line" id="L154"> <span class="tok-kw">return</span> Scalar{ .fe = n.fe.neg() };</span> <span class="line" id="L155"> }</span> <span class="line" id="L156"></span> <span class="line" id="L157"> <span class="tok-comment">/// Compute x^-1 (mod L)</span></span> <span class="line" id="L158"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">invert</span>(n: Scalar) Scalar {</span> <span class="line" id="L159"> <span class="tok-kw">return</span> Scalar{ .fe = n.fe.invert() };</span> <span class="line" id="L160"> }</span> <span class="line" id="L161"></span> <span class="line" id="L162"> <span class="tok-comment">/// Return true if n is a quadratic residue mod L.</span></span> <span class="line" id="L163"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">isSquare</span>(n: Scalar) Scalar {</span> <span class="line" id="L164"> <span class="tok-kw">return</span> n.fe.isSquare();</span> <span class="line" id="L165"> }</span> <span class="line" id="L166"></span> <span class="line" id="L167"> <span class="tok-comment">/// Return the square root of L, or NotSquare if there isn't any solutions.</span></span> <span class="line" id="L168"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">sqrt</span>(n: Scalar) NotSquareError!Scalar {</span> <span class="line" id="L169"> <span class="tok-kw">return</span> Scalar{ .fe = <span class="tok-kw">try</span> n.fe.sqrt() };</span> <span class="line" id="L170"> }</span> <span class="line" id="L171"></span> <span class="line" id="L172"> <span class="tok-comment">/// Return a random scalar < L.</span></span> <span class="line" id="L173"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">random</span>() Scalar {</span> <span class="line" id="L174"> <span class="tok-kw">var</span> s: [<span class="tok-number">48</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L175"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L176"> crypto.random.bytes(&s);</span> <span class="line" id="L177"> <span class="tok-kw">const</span> n = Scalar.fromBytes48(s, .Little);</span> <span class="line" id="L178"> <span class="tok-kw">if</span> (!n.isZero()) {</span> <span class="line" id="L179"> <span class="tok-kw">return</span> n;</span> <span class="line" id="L180"> }</span> <span class="line" id="L181"> }</span> <span class="line" id="L182"> }</span> <span class="line" id="L183">};</span> <span class="line" id="L184"></span> <span class="line" id="L185"><span class="tok-kw">const</span> ScalarDouble = <span class="tok-kw">struct</span> {</span> <span class="line" id="L186"> x1: Fe,</span> <span class="line" id="L187"> x2: Fe,</span> <span class="line" id="L188"> x3: Fe,</span> <span class="line" id="L189"></span> <span class="line" id="L190"> <span class="tok-kw">fn</span> <span class="tok-fn">fromBytes</span>(<span class="tok-kw">comptime</span> bits: <span class="tok-type">usize</span>, s_: [bits / <span class="tok-number">8</span>]<span class="tok-type">u8</span>, endian: std.builtin.Endian) ScalarDouble {</span> <span class="line" id="L191"> debug.assert(bits > <span class="tok-number">0</span> <span class="tok-kw">and</span> bits <= <span class="tok-number">512</span> <span class="tok-kw">and</span> bits >= Fe.saturated_bits <span class="tok-kw">and</span> bits <= Fe.saturated_bits <span class="tok-number">3</span>);</span> <span class="line" id="L192"></span> <span class="line" id="L193"> <span class="tok-kw">var</span> s = s_;</span> <span class="line" id="L194"> <span class="tok-kw">if</span> (endian == .Big) {</span> <span class="line" id="L195"> <span class="tok-kw">for</span> (s_, <span class="tok-number">0</span>..) \|x, i\| s[s.len - <span class="tok-number">1</span> - i] = x;</span> <span class="line" id="L196"> }</span> <span class="line" id="L197"> <span class="tok-kw">var</span> t = ScalarDouble{ .x1 = <span class="tok-null">undefined</span>, .x2 = Fe.zero, .x3 = Fe.zero };</span> <span class="line" id="L198"> {</span> <span class="line" id="L199"> <span class="tok-kw">var</span> b = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} ** encoded_length;</span> <span class="line" id="L200"> <span class="tok-kw">const</span> len = <span class="tok-builtin">@min</span>(s.len, <span class="tok-number">24</span>);</span> <span class="line" id="L201"> b[<span class="tok-number">0</span>..len].* = s[<span class="tok-number">0</span>..len].;</span> <span class="line" id="L202"> t.x1 = Fe.fromBytes(b, .Little) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L203"> }</span> <span class="line" id="L204"> <span class="tok-kw">if</span> (s_.len >= <span class="tok-number">24</span>) {</span> <span class="line" id="L205"> <span class="tok-kw">var</span> b = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} * encoded_length;</span> <span class="line" id="L206"> <span class="tok-kw">const</span> len = <span class="tok-builtin">@min</span>(s.len - <span class="tok-number">24</span>, <span class="tok-number">24</span>);</span> <span class="line" id="L207"> b[<span class="tok-number">0</span>..len].* = s[<span class="tok-number">24</span>..][<span class="tok-number">0</span>..len].;</span> <span class="line" id="L208"> t.x2 = Fe.fromBytes(b, .Little) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L209"> }</span> <span class="line" id="L210"> <span class="tok-kw">if</span> (s_.len >= <span class="tok-number">48</span>) {</span> <span class="line" id="L211"> <span class="tok-kw">var</span> b = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} * encoded_length;</span> <span class="line" id="L212"> <span class="tok-kw">const</span> len = s.len - <span class="tok-number">48</span>;</span> <span class="line" id="L213"> b[<span class="tok-number">0</span>..len].* = s[<span class="tok-number">48</span>..][<span class="tok-number">0</span>..len].;</span> <span class="line" id="L214"> t.x3 = Fe.fromBytes(b, .Little) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L215"> }</span> <span class="line" id="L216"> <span class="tok-kw">return</span> t;</span> <span class="line" id="L217"> }</span> <span class="line" id="L218"></span> <span class="line" id="L219"> <span class="tok-kw">fn</span> <span class="tok-fn">reduce</span>(expanded: ScalarDouble, <span class="tok-kw">comptime</span> bits: <span class="tok-type">usize</span>) Scalar {</span> <span class="line" id="L220"> debug.assert(bits > <span class="tok-number">0</span> <span class="tok-kw">and</span> bits <= Fe.saturated_bits <span class="tok-number">3</span> <span class="tok-kw">and</span> bits <= <span class="tok-number">512</span>);</span> <span class="line" id="L221"> <span class="tok-kw">var</span> fe = expanded.x1;</span> <span class="line" id="L222"> <span class="tok-kw">if</span> (bits >= <span class="tok-number">192</span>) {</span> <span class="line" id="L223"> <span class="tok-kw">const</span> st1 = Fe.fromInt(<span class="tok-number">1</span> << <span class="tok-number">192</span>) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L224"> fe = fe.add(expanded.x2.mul(st1));</span> <span class="line" id="L225"> <span class="tok-kw">if</span> (bits >= <span class="tok-number">384</span>) {</span> <span class="line" id="L226"> <span class="tok-kw">const</span> st2 = st1.sq();</span> <span class="line" id="L227"> fe = fe.add(expanded.x3.mul(st2));</span> <span class="line" id="L228"> }</span> <span class="line" id="L229"> }</span> <span class="line" id="L230"> <span class="tok-kw">return</span> Scalar{ .fe = fe };</span> <span class="line" id="L231"> }</span> <span class="line" id="L232">};</span> <span class="line" id="L233"></span> </code></pre></body> </html>
repos/yazap/docs/src/std/crypto/pcurves	repos/yazap/docs/src/std/crypto/pcurves/p256/p256_64.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/pcurves/p256/p256_64.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-comment">// Autogenerated: 'src/ExtractionOCaml/word_by_word_montgomery' --lang Zig --internal-static --public-function-case camelCase --private-function-case camelCase --public-type-case UpperCamelCase --private-type-case UpperCamelCase --no-prefix-fiat --package-name p256 '' 64 '2^256 - 2^224 + 2^192 + 2^96 - 1' mul square add sub opp from_montgomery to_montgomery nonzero selectznz to_bytes from_bytes one msat divstep divstep_precomp</span> </span> <span class="line" id="L2"><span class="tok-comment">// curve description (via package name): p256</span> </span> <span class="line" id="L3"><span class="tok-comment">// machine_wordsize = 64 (from "64")</span> </span> <span class="line" id="L4"><span class="tok-comment">// requested operations: mul, square, add, sub, opp, from_montgomery, to_montgomery, nonzero, selectznz, to_bytes, from_bytes, one, msat, divstep, divstep_precomp</span> </span> <span class="line" id="L5"><span class="tok-comment">// m = 0xffffffff00000001000000000000000000000000ffffffffffffffffffffffff (from "2^256 - 2^224 + 2^192 + 2^96 - 1")</span> </span> <span class="line" id="L6"><span class="tok-comment">//</span> </span> <span class="line" id="L7"><span class="tok-comment">// NOTE: In addition to the bounds specified above each function, all</span> </span> <span class="line" id="L8"><span class="tok-comment">// functions synthesized for this Montgomery arithmetic require the</span> </span> <span class="line" id="L9"><span class="tok-comment">// input to be strictly less than the prime modulus (m), and also</span> </span> <span class="line" id="L10"><span class="tok-comment">// require the input to be in the unique saturated representation.</span> </span> <span class="line" id="L11"><span class="tok-comment">// All functions also ensure that these two properties are true of</span> </span> <span class="line" id="L12"><span class="tok-comment">// return values.</span> </span> <span class="line" id="L13"><span class="tok-comment">//</span> </span> <span class="line" id="L14"><span class="tok-comment">// Computed values:</span> </span> <span class="line" id="L15"><span class="tok-comment">// eval z = z[0] + (z[1] << 64) + (z[2] << 128) + (z[3] << 192)</span> </span> <span class="line" id="L16"><span class="tok-comment">// bytes_eval z = z[0]</span> </span> <span class="line" id="L17"><span class="tok-comment">// + (z[1] << 8)</span> </span> <span class="line" id="L18"><span class="tok-comment">// + (z[2] << 16)</span> </span> <span class="line" id="L19"><span class="tok-comment">// + (z[3] << 24)</span> </span> <span class="line" id="L20"><span class="tok-comment">// + (z[4] << 32)</span> </span> <span class="line" id="L21"><span class="tok-comment">// + (z[5] << 40)</span> </span> <span class="line" id="L22"><span class="tok-comment">// + (z[6] << 48)</span> </span> <span class="line" id="L23"><span class="tok-comment">// + (z[7] << 56)</span> </span> <span class="line" id="L24"><span class="tok-comment">// + (z[8] << 64)</span> </span> <span class="line" id="L25"><span class="tok-comment">// + (z[9] << 72)</span> </span> <span class="line" id="L26"><span class="tok-comment">// + (z[10] << 80)</span> </span> <span class="line" id="L27"><span class="tok-comment">// + (z[11] << 88)</span> </span> <span class="line" id="L28"><span class="tok-comment">// + (z[12] << 96)</span> </span> <span class="line" id="L29"><span class="tok-comment">// + (z[13] << 104)</span> </span> <span class="line" id="L30"><span class="tok-comment">// + (z[14] << 112)</span> </span> <span class="line" id="L31"><span class="tok-comment">// + (z[15] << 120)</span> </span> <span class="line" id="L32"><span class="tok-comment">// + (z[16] << 128)</span> </span> <span class="line" id="L33"><span class="tok-comment">// + (z[17] << 136)</span> </span> <span class="line" id="L34"><span class="tok-comment">// + (z[18] << 144)</span> </span> <span class="line" id="L35"><span class="tok-comment">// + (z[19] << 152)</span> </span> <span class="line" id="L36"><span class="tok-comment">// + (z[20] << 160)</span> </span> <span class="line" id="L37"><span class="tok-comment">// + (z[21] << 168)</span> </span> <span class="line" id="L38"><span class="tok-comment">// + (z[22] << 176)</span> </span> <span class="line" id="L39"><span class="tok-comment">// + (z[23] << 184)</span> </span> <span class="line" id="L40"><span class="tok-comment">// + (z[24] << 192)</span> </span> <span class="line" id="L41"><span class="tok-comment">// + (z[25] << 200)</span> </span> <span class="line" id="L42"><span class="tok-comment">// + (z[26] << 208)</span> </span> <span class="line" id="L43"><span class="tok-comment">// + (z[27] << 216)</span> </span> <span class="line" id="L44"><span class="tok-comment">// + (z[28] << 224)</span> </span> <span class="line" id="L45"><span class="tok-comment">// + (z[29] << 232)</span> </span> <span class="line" id="L46"><span class="tok-comment">// + (z[30] << 240)</span> </span> <span class="line" id="L47"><span class="tok-comment">// + (z[31] << 248)</span> </span> <span class="line" id="L48"><span class="tok-comment">// twos_complement_eval z = let x1 := z[0] + (z[1] << 64) + (z[2] << 128) + (z[3] << 192) in</span> </span> <span class="line" id="L49"><span class="tok-comment">// if x1 & (2^256-1) < 2^255 then x1 & (2^256-1) else (x1 & (2^256-1)) - 2^256</span> </span> <span class="line" id="L50"></span> <span class="line" id="L51"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L52"><span class="tok-kw">const</span> mode = <span class="tok-builtin">@import</span>(<span class="tok-str">"builtin"</span>).mode; <span class="tok-comment">// Checked arithmetic is disabled in non-debug modes to avoid side channels</span> </span> <span class="line" id="L53"></span> <span class="line" id="L54"><span class="tok-comment">// The type MontgomeryDomainFieldElement is a field element in the Montgomery domain.</span> </span> <span class="line" id="L55"><span class="tok-comment">// Bounds: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span> </span> <span class="line" id="L56"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> MontgomeryDomainFieldElement = [<span class="tok-number">4</span>]<span class="tok-type">u64</span>;</span> <span class="line" id="L57"></span> <span class="line" id="L58"><span class="tok-comment">// The type NonMontgomeryDomainFieldElement is a field element NOT in the Montgomery domain.</span> </span> <span class="line" id="L59"><span class="tok-comment">// Bounds: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span> </span> <span class="line" id="L60"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> NonMontgomeryDomainFieldElement = [<span class="tok-number">4</span>]<span class="tok-type">u64</span>;</span> <span class="line" id="L61"></span> <span class="line" id="L62"><span class="tok-comment">/// The function addcarryxU64 is an addition with carry.</span></span> <span class="line" id="L63"><span class="tok-comment">///</span></span> <span class="line" id="L64"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L65"><span class="tok-comment">/// out1 = (arg1 + arg2 + arg3) mod 2^64</span></span> <span class="line" id="L66"><span class="tok-comment">/// out2 = ⌊(arg1 + arg2 + arg3) / 2^64⌋</span></span> <span class="line" id="L67"><span class="tok-comment">///</span></span> <span class="line" id="L68"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L69"><span class="tok-comment">/// arg1: [0x0 ~> 0x1]</span></span> <span class="line" id="L70"><span class="tok-comment">/// arg2: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L71"><span class="tok-comment">/// arg3: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L72"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L73"><span class="tok-comment">/// out1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L74"><span class="tok-comment">/// out2: [0x0 ~> 0x1]</span></span> <span class="line" id="L75"><span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">addcarryxU64</span>(out1: <span class="tok-type">u64</span>, out2: <span class="tok-type">u1</span>, arg1: <span class="tok-type">u1</span>, arg2: <span class="tok-type">u64</span>, arg3: <span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L76"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L77"></span> <span class="line" id="L78"> <span class="tok-kw">const</span> ov1 = <span class="tok-builtin">@addWithOverflow</span>(arg2, arg3);</span> <span class="line" id="L79"> <span class="tok-kw">const</span> ov2 = <span class="tok-builtin">@addWithOverflow</span>(ov1[<span class="tok-number">0</span>], arg1);</span> <span class="line" id="L80"> out1.* = ov2[<span class="tok-number">0</span>];</span> <span class="line" id="L81"> out2.* = ov1[<span class="tok-number">1</span>] \| ov2[<span class="tok-number">1</span>];</span> <span class="line" id="L82">}</span> <span class="line" id="L83"></span> <span class="line" id="L84"><span class="tok-comment">/// The function subborrowxU64 is a subtraction with borrow.</span></span> <span class="line" id="L85"><span class="tok-comment">///</span></span> <span class="line" id="L86"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L87"><span class="tok-comment">/// out1 = (-arg1 + arg2 + -arg3) mod 2^64</span></span> <span class="line" id="L88"><span class="tok-comment">/// out2 = -⌊(-arg1 + arg2 + -arg3) / 2^64⌋</span></span> <span class="line" id="L89"><span class="tok-comment">///</span></span> <span class="line" id="L90"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L91"><span class="tok-comment">/// arg1: [0x0 ~> 0x1]</span></span> <span class="line" id="L92"><span class="tok-comment">/// arg2: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L93"><span class="tok-comment">/// arg3: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L94"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L95"><span class="tok-comment">/// out1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L96"><span class="tok-comment">/// out2: [0x0 ~> 0x1]</span></span> <span class="line" id="L97"><span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">subborrowxU64</span>(out1: <span class="tok-type">u64</span>, out2: <span class="tok-type">u1</span>, arg1: <span class="tok-type">u1</span>, arg2: <span class="tok-type">u64</span>, arg3: <span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L98"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L99"></span> <span class="line" id="L100"> <span class="tok-kw">const</span> ov1 = <span class="tok-builtin">@subWithOverflow</span>(arg2, arg3);</span> <span class="line" id="L101"> <span class="tok-kw">const</span> ov2 = <span class="tok-builtin">@subWithOverflow</span>(ov1[<span class="tok-number">0</span>], arg1);</span> <span class="line" id="L102"> out1.* = ov2[<span class="tok-number">0</span>];</span> <span class="line" id="L103"> out2.* = ov1[<span class="tok-number">1</span>] \| ov2[<span class="tok-number">1</span>];</span> <span class="line" id="L104">}</span> <span class="line" id="L105"></span> <span class="line" id="L106"><span class="tok-comment">/// The function mulxU64 is a multiplication, returning the full double-width result.</span></span> <span class="line" id="L107"><span class="tok-comment">///</span></span> <span class="line" id="L108"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L109"><span class="tok-comment">/// out1 = (arg1 * arg2) mod 2^64</span></span> <span class="line" id="L110"><span class="tok-comment">/// out2 = ⌊arg1 * arg2 / 2^64⌋</span></span> <span class="line" id="L111"><span class="tok-comment">///</span></span> <span class="line" id="L112"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L113"><span class="tok-comment">/// arg1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L114"><span class="tok-comment">/// arg2: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L115"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L116"><span class="tok-comment">/// out1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L117"><span class="tok-comment">/// out2: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L118"><span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">mulxU64</span>(out1: <span class="tok-type">u64</span>, out2: <span class="tok-type">u64</span>, arg1: <span class="tok-type">u64</span>, arg2: <span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L119"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L120"></span> <span class="line" id="L121"> <span class="tok-kw">const</span> x = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, arg1) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, arg2);</span> <span class="line" id="L122"> out1.* = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(x));</span> <span class="line" id="L123"> out2.* = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(x >> <span class="tok-number">64</span>));</span> <span class="line" id="L124">}</span> <span class="line" id="L125"></span> <span class="line" id="L126"><span class="tok-comment">/// The function cmovznzU64 is a single-word conditional move.</span></span> <span class="line" id="L127"><span class="tok-comment">///</span></span> <span class="line" id="L128"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L129"><span class="tok-comment">/// out1 = (if arg1 = 0 then arg2 else arg3)</span></span> <span class="line" id="L130"><span class="tok-comment">///</span></span> <span class="line" id="L131"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L132"><span class="tok-comment">/// arg1: [0x0 ~> 0x1]</span></span> <span class="line" id="L133"><span class="tok-comment">/// arg2: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L134"><span class="tok-comment">/// arg3: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L135"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L136"><span class="tok-comment">/// out1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L137"><span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">cmovznzU64</span>(out1: <span class="tok-type">u64</span>, arg1: <span class="tok-type">u1</span>, arg2: <span class="tok-type">u64</span>, arg3: <span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L138"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L139"></span> <span class="line" id="L140"> <span class="tok-kw">const</span> mask = <span class="tok-number">0</span> -% <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, arg1);</span> <span class="line" id="L141"> out1. = (mask & arg3) \| ((~mask) & arg2);</span> <span class="line" id="L142">}</span> <span class="line" id="L143"></span> <span class="line" id="L144"><span class="tok-comment">/// The function mul multiplies two field elements in the Montgomery domain.</span></span> <span class="line" id="L145"><span class="tok-comment">///</span></span> <span class="line" id="L146"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L147"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L148"><span class="tok-comment">/// 0 ≤ eval arg2 < m</span></span> <span class="line" id="L149"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L150"><span class="tok-comment">/// eval (from_montgomery out1) mod m = (eval (from_montgomery arg1) * eval (from_montgomery arg2)) mod m</span></span> <span class="line" id="L151"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L152"><span class="tok-comment">///</span></span> <span class="line" id="L153"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">mul</span>(out1: MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldElement, arg2: MontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L154"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L155"></span> <span class="line" id="L156"> <span class="tok-kw">const</span> x1 = (arg1[<span class="tok-number">1</span>]);</span> <span class="line" id="L157"> <span class="tok-kw">const</span> x2 = (arg1[<span class="tok-number">2</span>]);</span> <span class="line" id="L158"> <span class="tok-kw">const</span> x3 = (arg1[<span class="tok-number">3</span>]);</span> <span class="line" id="L159"> <span class="tok-kw">const</span> x4 = (arg1[<span class="tok-number">0</span>]);</span> <span class="line" id="L160"> <span class="tok-kw">var</span> x5: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L161"> <span class="tok-kw">var</span> x6: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L162"> mulxU64(&x5, &x6, x4, (arg2[<span class="tok-number">3</span>]));</span> <span class="line" id="L163"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L164"> <span class="tok-kw">var</span> x8: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L165"> mulxU64(&x7, &x8, x4, (arg2[<span class="tok-number">2</span>]));</span> <span class="line" id="L166"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L167"> <span class="tok-kw">var</span> x10: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L168"> mulxU64(&x9, &x10, x4, (arg2[<span class="tok-number">1</span>]));</span> <span class="line" id="L169"> <span class="tok-kw">var</span> x11: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L170"> <span class="tok-kw">var</span> x12: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L171"> mulxU64(&x11, &x12, x4, (arg2[<span class="tok-number">0</span>]));</span> <span class="line" id="L172"> <span class="tok-kw">var</span> x13: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L173"> <span class="tok-kw">var</span> x14: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L174"> addcarryxU64(&x13, &x14, <span class="tok-number">0x0</span>, x12, x9);</span> <span class="line" id="L175"> <span class="tok-kw">var</span> x15: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L176"> <span class="tok-kw">var</span> x16: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L177"> addcarryxU64(&x15, &x16, x14, x10, x7);</span> <span class="line" id="L178"> <span class="tok-kw">var</span> x17: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L179"> <span class="tok-kw">var</span> x18: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L180"> addcarryxU64(&x17, &x18, x16, x8, x5);</span> <span class="line" id="L181"> <span class="tok-kw">const</span> x19 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x18) + x6);</span> <span class="line" id="L182"> <span class="tok-kw">var</span> x20: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L183"> <span class="tok-kw">var</span> x21: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L184"> mulxU64(&x20, &x21, x11, <span class="tok-number">0xffffffff00000001</span>);</span> <span class="line" id="L185"> <span class="tok-kw">var</span> x22: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L186"> <span class="tok-kw">var</span> x23: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L187"> mulxU64(&x22, &x23, x11, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L188"> <span class="tok-kw">var</span> x24: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L189"> <span class="tok-kw">var</span> x25: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L190"> mulxU64(&x24, &x25, x11, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L191"> <span class="tok-kw">var</span> x26: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L192"> <span class="tok-kw">var</span> x27: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L193"> addcarryxU64(&x26, &x27, <span class="tok-number">0x0</span>, x25, x22);</span> <span class="line" id="L194"> <span class="tok-kw">const</span> x28 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x27) + x23);</span> <span class="line" id="L195"> <span class="tok-kw">var</span> x29: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L196"> <span class="tok-kw">var</span> x30: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L197"> addcarryxU64(&x29, &x30, <span class="tok-number">0x0</span>, x11, x24);</span> <span class="line" id="L198"> <span class="tok-kw">var</span> x31: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L199"> <span class="tok-kw">var</span> x32: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L200"> addcarryxU64(&x31, &x32, x30, x13, x26);</span> <span class="line" id="L201"> <span class="tok-kw">var</span> x33: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L202"> <span class="tok-kw">var</span> x34: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L203"> addcarryxU64(&x33, &x34, x32, x15, x28);</span> <span class="line" id="L204"> <span class="tok-kw">var</span> x35: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L205"> <span class="tok-kw">var</span> x36: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L206"> addcarryxU64(&x35, &x36, x34, x17, x20);</span> <span class="line" id="L207"> <span class="tok-kw">var</span> x37: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L208"> <span class="tok-kw">var</span> x38: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L209"> addcarryxU64(&x37, &x38, x36, x19, x21);</span> <span class="line" id="L210"> <span class="tok-kw">var</span> x39: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L211"> <span class="tok-kw">var</span> x40: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L212"> mulxU64(&x39, &x40, x1, (arg2[<span class="tok-number">3</span>]));</span> <span class="line" id="L213"> <span class="tok-kw">var</span> x41: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L214"> <span class="tok-kw">var</span> x42: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L215"> mulxU64(&x41, &x42, x1, (arg2[<span class="tok-number">2</span>]));</span> <span class="line" id="L216"> <span class="tok-kw">var</span> x43: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L217"> <span class="tok-kw">var</span> x44: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L218"> mulxU64(&x43, &x44, x1, (arg2[<span class="tok-number">1</span>]));</span> <span class="line" id="L219"> <span class="tok-kw">var</span> x45: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L220"> <span class="tok-kw">var</span> x46: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L221"> mulxU64(&x45, &x46, x1, (arg2[<span class="tok-number">0</span>]));</span> <span class="line" id="L222"> <span class="tok-kw">var</span> x47: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L223"> <span class="tok-kw">var</span> x48: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L224"> addcarryxU64(&x47, &x48, <span class="tok-number">0x0</span>, x46, x43);</span> <span class="line" id="L225"> <span class="tok-kw">var</span> x49: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L226"> <span class="tok-kw">var</span> x50: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L227"> addcarryxU64(&x49, &x50, x48, x44, x41);</span> <span class="line" id="L228"> <span class="tok-kw">var</span> x51: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L229"> <span class="tok-kw">var</span> x52: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L230"> addcarryxU64(&x51, &x52, x50, x42, x39);</span> <span class="line" id="L231"> <span class="tok-kw">const</span> x53 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x52) + x40);</span> <span class="line" id="L232"> <span class="tok-kw">var</span> x54: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L233"> <span class="tok-kw">var</span> x55: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L234"> addcarryxU64(&x54, &x55, <span class="tok-number">0x0</span>, x31, x45);</span> <span class="line" id="L235"> <span class="tok-kw">var</span> x56: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L236"> <span class="tok-kw">var</span> x57: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L237"> addcarryxU64(&x56, &x57, x55, x33, x47);</span> <span class="line" id="L238"> <span class="tok-kw">var</span> x58: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L239"> <span class="tok-kw">var</span> x59: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L240"> addcarryxU64(&x58, &x59, x57, x35, x49);</span> <span class="line" id="L241"> <span class="tok-kw">var</span> x60: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L242"> <span class="tok-kw">var</span> x61: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L243"> addcarryxU64(&x60, &x61, x59, x37, x51);</span> <span class="line" id="L244"> <span class="tok-kw">var</span> x62: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L245"> <span class="tok-kw">var</span> x63: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L246"> addcarryxU64(&x62, &x63, x61, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x38), x53);</span> <span class="line" id="L247"> <span class="tok-kw">var</span> x64: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L248"> <span class="tok-kw">var</span> x65: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L249"> mulxU64(&x64, &x65, x54, <span class="tok-number">0xffffffff00000001</span>);</span> <span class="line" id="L250"> <span class="tok-kw">var</span> x66: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L251"> <span class="tok-kw">var</span> x67: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L252"> mulxU64(&x66, &x67, x54, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L253"> <span class="tok-kw">var</span> x68: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L254"> <span class="tok-kw">var</span> x69: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L255"> mulxU64(&x68, &x69, x54, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L256"> <span class="tok-kw">var</span> x70: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L257"> <span class="tok-kw">var</span> x71: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L258"> addcarryxU64(&x70, &x71, <span class="tok-number">0x0</span>, x69, x66);</span> <span class="line" id="L259"> <span class="tok-kw">const</span> x72 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x71) + x67);</span> <span class="line" id="L260"> <span class="tok-kw">var</span> x73: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L261"> <span class="tok-kw">var</span> x74: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L262"> addcarryxU64(&x73, &x74, <span class="tok-number">0x0</span>, x54, x68);</span> <span class="line" id="L263"> <span class="tok-kw">var</span> x75: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L264"> <span class="tok-kw">var</span> x76: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L265"> addcarryxU64(&x75, &x76, x74, x56, x70);</span> <span class="line" id="L266"> <span class="tok-kw">var</span> x77: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L267"> <span class="tok-kw">var</span> x78: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L268"> addcarryxU64(&x77, &x78, x76, x58, x72);</span> <span class="line" id="L269"> <span class="tok-kw">var</span> x79: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L270"> <span class="tok-kw">var</span> x80: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L271"> addcarryxU64(&x79, &x80, x78, x60, x64);</span> <span class="line" id="L272"> <span class="tok-kw">var</span> x81: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L273"> <span class="tok-kw">var</span> x82: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L274"> addcarryxU64(&x81, &x82, x80, x62, x65);</span> <span class="line" id="L275"> <span class="tok-kw">const</span> x83 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x82) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x63));</span> <span class="line" id="L276"> <span class="tok-kw">var</span> x84: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L277"> <span class="tok-kw">var</span> x85: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L278"> mulxU64(&x84, &x85, x2, (arg2[<span class="tok-number">3</span>]));</span> <span class="line" id="L279"> <span class="tok-kw">var</span> x86: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L280"> <span class="tok-kw">var</span> x87: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L281"> mulxU64(&x86, &x87, x2, (arg2[<span class="tok-number">2</span>]));</span> <span class="line" id="L282"> <span class="tok-kw">var</span> x88: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L283"> <span class="tok-kw">var</span> x89: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L284"> mulxU64(&x88, &x89, x2, (arg2[<span class="tok-number">1</span>]));</span> <span class="line" id="L285"> <span class="tok-kw">var</span> x90: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L286"> <span class="tok-kw">var</span> x91: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L287"> mulxU64(&x90, &x91, x2, (arg2[<span class="tok-number">0</span>]));</span> <span class="line" id="L288"> <span class="tok-kw">var</span> x92: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L289"> <span class="tok-kw">var</span> x93: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L290"> addcarryxU64(&x92, &x93, <span class="tok-number">0x0</span>, x91, x88);</span> <span class="line" id="L291"> <span class="tok-kw">var</span> x94: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L292"> <span class="tok-kw">var</span> x95: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L293"> addcarryxU64(&x94, &x95, x93, x89, x86);</span> <span class="line" id="L294"> <span class="tok-kw">var</span> x96: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L295"> <span class="tok-kw">var</span> x97: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L296"> addcarryxU64(&x96, &x97, x95, x87, x84);</span> <span class="line" id="L297"> <span class="tok-kw">const</span> x98 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x97) + x85);</span> <span class="line" id="L298"> <span class="tok-kw">var</span> x99: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L299"> <span class="tok-kw">var</span> x100: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L300"> addcarryxU64(&x99, &x100, <span class="tok-number">0x0</span>, x75, x90);</span> <span class="line" id="L301"> <span class="tok-kw">var</span> x101: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L302"> <span class="tok-kw">var</span> x102: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L303"> addcarryxU64(&x101, &x102, x100, x77, x92);</span> <span class="line" id="L304"> <span class="tok-kw">var</span> x103: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L305"> <span class="tok-kw">var</span> x104: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L306"> addcarryxU64(&x103, &x104, x102, x79, x94);</span> <span class="line" id="L307"> <span class="tok-kw">var</span> x105: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L308"> <span class="tok-kw">var</span> x106: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L309"> addcarryxU64(&x105, &x106, x104, x81, x96);</span> <span class="line" id="L310"> <span class="tok-kw">var</span> x107: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L311"> <span class="tok-kw">var</span> x108: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L312"> addcarryxU64(&x107, &x108, x106, x83, x98);</span> <span class="line" id="L313"> <span class="tok-kw">var</span> x109: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L314"> <span class="tok-kw">var</span> x110: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L315"> mulxU64(&x109, &x110, x99, <span class="tok-number">0xffffffff00000001</span>);</span> <span class="line" id="L316"> <span class="tok-kw">var</span> x111: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L317"> <span class="tok-kw">var</span> x112: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L318"> mulxU64(&x111, &x112, x99, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L319"> <span class="tok-kw">var</span> x113: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L320"> <span class="tok-kw">var</span> x114: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L321"> mulxU64(&x113, &x114, x99, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L322"> <span class="tok-kw">var</span> x115: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L323"> <span class="tok-kw">var</span> x116: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L324"> addcarryxU64(&x115, &x116, <span class="tok-number">0x0</span>, x114, x111);</span> <span class="line" id="L325"> <span class="tok-kw">const</span> x117 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x116) + x112);</span> <span class="line" id="L326"> <span class="tok-kw">var</span> x118: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L327"> <span class="tok-kw">var</span> x119: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L328"> addcarryxU64(&x118, &x119, <span class="tok-number">0x0</span>, x99, x113);</span> <span class="line" id="L329"> <span class="tok-kw">var</span> x120: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L330"> <span class="tok-kw">var</span> x121: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L331"> addcarryxU64(&x120, &x121, x119, x101, x115);</span> <span class="line" id="L332"> <span class="tok-kw">var</span> x122: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L333"> <span class="tok-kw">var</span> x123: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L334"> addcarryxU64(&x122, &x123, x121, x103, x117);</span> <span class="line" id="L335"> <span class="tok-kw">var</span> x124: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L336"> <span class="tok-kw">var</span> x125: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L337"> addcarryxU64(&x124, &x125, x123, x105, x109);</span> <span class="line" id="L338"> <span class="tok-kw">var</span> x126: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L339"> <span class="tok-kw">var</span> x127: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L340"> addcarryxU64(&x126, &x127, x125, x107, x110);</span> <span class="line" id="L341"> <span class="tok-kw">const</span> x128 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x127) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x108));</span> <span class="line" id="L342"> <span class="tok-kw">var</span> x129: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L343"> <span class="tok-kw">var</span> x130: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L344"> mulxU64(&x129, &x130, x3, (arg2[<span class="tok-number">3</span>]));</span> <span class="line" id="L345"> <span class="tok-kw">var</span> x131: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L346"> <span class="tok-kw">var</span> x132: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L347"> mulxU64(&x131, &x132, x3, (arg2[<span class="tok-number">2</span>]));</span> <span class="line" id="L348"> <span class="tok-kw">var</span> x133: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L349"> <span class="tok-kw">var</span> x134: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L350"> mulxU64(&x133, &x134, x3, (arg2[<span class="tok-number">1</span>]));</span> <span class="line" id="L351"> <span class="tok-kw">var</span> x135: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L352"> <span class="tok-kw">var</span> x136: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L353"> mulxU64(&x135, &x136, x3, (arg2[<span class="tok-number">0</span>]));</span> <span class="line" id="L354"> <span class="tok-kw">var</span> x137: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L355"> <span class="tok-kw">var</span> x138: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L356"> addcarryxU64(&x137, &x138, <span class="tok-number">0x0</span>, x136, x133);</span> <span class="line" id="L357"> <span class="tok-kw">var</span> x139: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L358"> <span class="tok-kw">var</span> x140: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L359"> addcarryxU64(&x139, &x140, x138, x134, x131);</span> <span class="line" id="L360"> <span class="tok-kw">var</span> x141: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L361"> <span class="tok-kw">var</span> x142: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L362"> addcarryxU64(&x141, &x142, x140, x132, x129);</span> <span class="line" id="L363"> <span class="tok-kw">const</span> x143 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x142) + x130);</span> <span class="line" id="L364"> <span class="tok-kw">var</span> x144: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L365"> <span class="tok-kw">var</span> x145: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L366"> addcarryxU64(&x144, &x145, <span class="tok-number">0x0</span>, x120, x135);</span> <span class="line" id="L367"> <span class="tok-kw">var</span> x146: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L368"> <span class="tok-kw">var</span> x147: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L369"> addcarryxU64(&x146, &x147, x145, x122, x137);</span> <span class="line" id="L370"> <span class="tok-kw">var</span> x148: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L371"> <span class="tok-kw">var</span> x149: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L372"> addcarryxU64(&x148, &x149, x147, x124, x139);</span> <span class="line" id="L373"> <span class="tok-kw">var</span> x150: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L374"> <span class="tok-kw">var</span> x151: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L375"> addcarryxU64(&x150, &x151, x149, x126, x141);</span> <span class="line" id="L376"> <span class="tok-kw">var</span> x152: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L377"> <span class="tok-kw">var</span> x153: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L378"> addcarryxU64(&x152, &x153, x151, x128, x143);</span> <span class="line" id="L379"> <span class="tok-kw">var</span> x154: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L380"> <span class="tok-kw">var</span> x155: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L381"> mulxU64(&x154, &x155, x144, <span class="tok-number">0xffffffff00000001</span>);</span> <span class="line" id="L382"> <span class="tok-kw">var</span> x156: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L383"> <span class="tok-kw">var</span> x157: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L384"> mulxU64(&x156, &x157, x144, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L385"> <span class="tok-kw">var</span> x158: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L386"> <span class="tok-kw">var</span> x159: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L387"> mulxU64(&x158, &x159, x144, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L388"> <span class="tok-kw">var</span> x160: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L389"> <span class="tok-kw">var</span> x161: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L390"> addcarryxU64(&x160, &x161, <span class="tok-number">0x0</span>, x159, x156);</span> <span class="line" id="L391"> <span class="tok-kw">const</span> x162 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x161) + x157);</span> <span class="line" id="L392"> <span class="tok-kw">var</span> x163: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L393"> <span class="tok-kw">var</span> x164: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L394"> addcarryxU64(&x163, &x164, <span class="tok-number">0x0</span>, x144, x158);</span> <span class="line" id="L395"> <span class="tok-kw">var</span> x165: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L396"> <span class="tok-kw">var</span> x166: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L397"> addcarryxU64(&x165, &x166, x164, x146, x160);</span> <span class="line" id="L398"> <span class="tok-kw">var</span> x167: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L399"> <span class="tok-kw">var</span> x168: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L400"> addcarryxU64(&x167, &x168, x166, x148, x162);</span> <span class="line" id="L401"> <span class="tok-kw">var</span> x169: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L402"> <span class="tok-kw">var</span> x170: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L403"> addcarryxU64(&x169, &x170, x168, x150, x154);</span> <span class="line" id="L404"> <span class="tok-kw">var</span> x171: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L405"> <span class="tok-kw">var</span> x172: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L406"> addcarryxU64(&x171, &x172, x170, x152, x155);</span> <span class="line" id="L407"> <span class="tok-kw">const</span> x173 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x172) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x153));</span> <span class="line" id="L408"> <span class="tok-kw">var</span> x174: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L409"> <span class="tok-kw">var</span> x175: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L410"> subborrowxU64(&x174, &x175, <span class="tok-number">0x0</span>, x165, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L411"> <span class="tok-kw">var</span> x176: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L412"> <span class="tok-kw">var</span> x177: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L413"> subborrowxU64(&x176, &x177, x175, x167, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L414"> <span class="tok-kw">var</span> x178: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L415"> <span class="tok-kw">var</span> x179: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L416"> subborrowxU64(&x178, &x179, x177, x169, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>));</span> <span class="line" id="L417"> <span class="tok-kw">var</span> x180: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L418"> <span class="tok-kw">var</span> x181: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L419"> subborrowxU64(&x180, &x181, x179, x171, <span class="tok-number">0xffffffff00000001</span>);</span> <span class="line" id="L420"> <span class="tok-kw">var</span> x182: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L421"> <span class="tok-kw">var</span> x183: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L422"> subborrowxU64(&x182, &x183, x181, x173, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>));</span> <span class="line" id="L423"> <span class="tok-kw">var</span> x184: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L424"> cmovznzU64(&x184, x183, x174, x165);</span> <span class="line" id="L425"> <span class="tok-kw">var</span> x185: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L426"> cmovznzU64(&x185, x183, x176, x167);</span> <span class="line" id="L427"> <span class="tok-kw">var</span> x186: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L428"> cmovznzU64(&x186, x183, x178, x169);</span> <span class="line" id="L429"> <span class="tok-kw">var</span> x187: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L430"> cmovznzU64(&x187, x183, x180, x171);</span> <span class="line" id="L431"> out1[<span class="tok-number">0</span>] = x184;</span> <span class="line" id="L432"> out1[<span class="tok-number">1</span>] = x185;</span> <span class="line" id="L433"> out1[<span class="tok-number">2</span>] = x186;</span> <span class="line" id="L434"> out1[<span class="tok-number">3</span>] = x187;</span> <span class="line" id="L435">}</span> <span class="line" id="L436"></span> <span class="line" id="L437"><span class="tok-comment">/// The function square squares a field element in the Montgomery domain.</span></span> <span class="line" id="L438"><span class="tok-comment">///</span></span> <span class="line" id="L439"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L440"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L441"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L442"><span class="tok-comment">/// eval (from_montgomery out1) mod m = (eval (from_montgomery arg1) eval (from_montgomery arg1)) mod m</span></span> <span class="line" id="L443"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L444"><span class="tok-comment">///</span></span> <span class="line" id="L445"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">square</span>(out1: MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L446"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L447"></span> <span class="line" id="L448"> <span class="tok-kw">const</span> x1 = (arg1[<span class="tok-number">1</span>]);</span> <span class="line" id="L449"> <span class="tok-kw">const</span> x2 = (arg1[<span class="tok-number">2</span>]);</span> <span class="line" id="L450"> <span class="tok-kw">const</span> x3 = (arg1[<span class="tok-number">3</span>]);</span> <span class="line" id="L451"> <span class="tok-kw">const</span> x4 = (arg1[<span class="tok-number">0</span>]);</span> <span class="line" id="L452"> <span class="tok-kw">var</span> x5: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L453"> <span class="tok-kw">var</span> x6: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L454"> mulxU64(&x5, &x6, x4, (arg1[<span class="tok-number">3</span>]));</span> <span class="line" id="L455"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L456"> <span class="tok-kw">var</span> x8: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L457"> mulxU64(&x7, &x8, x4, (arg1[<span class="tok-number">2</span>]));</span> <span class="line" id="L458"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L459"> <span class="tok-kw">var</span> x10: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L460"> mulxU64(&x9, &x10, x4, (arg1[<span class="tok-number">1</span>]));</span> <span class="line" id="L461"> <span class="tok-kw">var</span> x11: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L462"> <span class="tok-kw">var</span> x12: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L463"> mulxU64(&x11, &x12, x4, (arg1[<span class="tok-number">0</span>]));</span> <span class="line" id="L464"> <span class="tok-kw">var</span> x13: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L465"> <span class="tok-kw">var</span> x14: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L466"> addcarryxU64(&x13, &x14, <span class="tok-number">0x0</span>, x12, x9);</span> <span class="line" id="L467"> <span class="tok-kw">var</span> x15: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L468"> <span class="tok-kw">var</span> x16: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L469"> addcarryxU64(&x15, &x16, x14, x10, x7);</span> <span class="line" id="L470"> <span class="tok-kw">var</span> x17: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L471"> <span class="tok-kw">var</span> x18: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L472"> addcarryxU64(&x17, &x18, x16, x8, x5);</span> <span class="line" id="L473"> <span class="tok-kw">const</span> x19 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x18) + x6);</span> <span class="line" id="L474"> <span class="tok-kw">var</span> x20: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L475"> <span class="tok-kw">var</span> x21: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L476"> mulxU64(&x20, &x21, x11, <span class="tok-number">0xffffffff00000001</span>);</span> <span class="line" id="L477"> <span class="tok-kw">var</span> x22: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L478"> <span class="tok-kw">var</span> x23: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L479"> mulxU64(&x22, &x23, x11, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L480"> <span class="tok-kw">var</span> x24: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L481"> <span class="tok-kw">var</span> x25: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L482"> mulxU64(&x24, &x25, x11, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L483"> <span class="tok-kw">var</span> x26: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L484"> <span class="tok-kw">var</span> x27: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L485"> addcarryxU64(&x26, &x27, <span class="tok-number">0x0</span>, x25, x22);</span> <span class="line" id="L486"> <span class="tok-kw">const</span> x28 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x27) + x23);</span> <span class="line" id="L487"> <span class="tok-kw">var</span> x29: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L488"> <span class="tok-kw">var</span> x30: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L489"> addcarryxU64(&x29, &x30, <span class="tok-number">0x0</span>, x11, x24);</span> <span class="line" id="L490"> <span class="tok-kw">var</span> x31: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L491"> <span class="tok-kw">var</span> x32: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L492"> addcarryxU64(&x31, &x32, x30, x13, x26);</span> <span class="line" id="L493"> <span class="tok-kw">var</span> x33: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L494"> <span class="tok-kw">var</span> x34: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L495"> addcarryxU64(&x33, &x34, x32, x15, x28);</span> <span class="line" id="L496"> <span class="tok-kw">var</span> x35: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L497"> <span class="tok-kw">var</span> x36: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L498"> addcarryxU64(&x35, &x36, x34, x17, x20);</span> <span class="line" id="L499"> <span class="tok-kw">var</span> x37: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L500"> <span class="tok-kw">var</span> x38: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L501"> addcarryxU64(&x37, &x38, x36, x19, x21);</span> <span class="line" id="L502"> <span class="tok-kw">var</span> x39: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L503"> <span class="tok-kw">var</span> x40: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L504"> mulxU64(&x39, &x40, x1, (arg1[<span class="tok-number">3</span>]));</span> <span class="line" id="L505"> <span class="tok-kw">var</span> x41: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L506"> <span class="tok-kw">var</span> x42: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L507"> mulxU64(&x41, &x42, x1, (arg1[<span class="tok-number">2</span>]));</span> <span class="line" id="L508"> <span class="tok-kw">var</span> x43: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L509"> <span class="tok-kw">var</span> x44: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L510"> mulxU64(&x43, &x44, x1, (arg1[<span class="tok-number">1</span>]));</span> <span class="line" id="L511"> <span class="tok-kw">var</span> x45: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L512"> <span class="tok-kw">var</span> x46: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L513"> mulxU64(&x45, &x46, x1, (arg1[<span class="tok-number">0</span>]));</span> <span class="line" id="L514"> <span class="tok-kw">var</span> x47: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L515"> <span class="tok-kw">var</span> x48: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L516"> addcarryxU64(&x47, &x48, <span class="tok-number">0x0</span>, x46, x43);</span> <span class="line" id="L517"> <span class="tok-kw">var</span> x49: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L518"> <span class="tok-kw">var</span> x50: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L519"> addcarryxU64(&x49, &x50, x48, x44, x41);</span> <span class="line" id="L520"> <span class="tok-kw">var</span> x51: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L521"> <span class="tok-kw">var</span> x52: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L522"> addcarryxU64(&x51, &x52, x50, x42, x39);</span> <span class="line" id="L523"> <span class="tok-kw">const</span> x53 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x52) + x40);</span> <span class="line" id="L524"> <span class="tok-kw">var</span> x54: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L525"> <span class="tok-kw">var</span> x55: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L526"> addcarryxU64(&x54, &x55, <span class="tok-number">0x0</span>, x31, x45);</span> <span class="line" id="L527"> <span class="tok-kw">var</span> x56: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L528"> <span class="tok-kw">var</span> x57: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L529"> addcarryxU64(&x56, &x57, x55, x33, x47);</span> <span class="line" id="L530"> <span class="tok-kw">var</span> x58: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L531"> <span class="tok-kw">var</span> x59: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L532"> addcarryxU64(&x58, &x59, x57, x35, x49);</span> <span class="line" id="L533"> <span class="tok-kw">var</span> x60: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L534"> <span class="tok-kw">var</span> x61: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L535"> addcarryxU64(&x60, &x61, x59, x37, x51);</span> <span class="line" id="L536"> <span class="tok-kw">var</span> x62: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L537"> <span class="tok-kw">var</span> x63: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L538"> addcarryxU64(&x62, &x63, x61, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x38), x53);</span> <span class="line" id="L539"> <span class="tok-kw">var</span> x64: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L540"> <span class="tok-kw">var</span> x65: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L541"> mulxU64(&x64, &x65, x54, <span class="tok-number">0xffffffff00000001</span>);</span> <span class="line" id="L542"> <span class="tok-kw">var</span> x66: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L543"> <span class="tok-kw">var</span> x67: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L544"> mulxU64(&x66, &x67, x54, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L545"> <span class="tok-kw">var</span> x68: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L546"> <span class="tok-kw">var</span> x69: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L547"> mulxU64(&x68, &x69, x54, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L548"> <span class="tok-kw">var</span> x70: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L549"> <span class="tok-kw">var</span> x71: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L550"> addcarryxU64(&x70, &x71, <span class="tok-number">0x0</span>, x69, x66);</span> <span class="line" id="L551"> <span class="tok-kw">const</span> x72 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x71) + x67);</span> <span class="line" id="L552"> <span class="tok-kw">var</span> x73: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L553"> <span class="tok-kw">var</span> x74: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L554"> addcarryxU64(&x73, &x74, <span class="tok-number">0x0</span>, x54, x68);</span> <span class="line" id="L555"> <span class="tok-kw">var</span> x75: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L556"> <span class="tok-kw">var</span> x76: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L557"> addcarryxU64(&x75, &x76, x74, x56, x70);</span> <span class="line" id="L558"> <span class="tok-kw">var</span> x77: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L559"> <span class="tok-kw">var</span> x78: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L560"> addcarryxU64(&x77, &x78, x76, x58, x72);</span> <span class="line" id="L561"> <span class="tok-kw">var</span> x79: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L562"> <span class="tok-kw">var</span> x80: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L563"> addcarryxU64(&x79, &x80, x78, x60, x64);</span> <span class="line" id="L564"> <span class="tok-kw">var</span> x81: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L565"> <span class="tok-kw">var</span> x82: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L566"> addcarryxU64(&x81, &x82, x80, x62, x65);</span> <span class="line" id="L567"> <span class="tok-kw">const</span> x83 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x82) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x63));</span> <span class="line" id="L568"> <span class="tok-kw">var</span> x84: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L569"> <span class="tok-kw">var</span> x85: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L570"> mulxU64(&x84, &x85, x2, (arg1[<span class="tok-number">3</span>]));</span> <span class="line" id="L571"> <span class="tok-kw">var</span> x86: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L572"> <span class="tok-kw">var</span> x87: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L573"> mulxU64(&x86, &x87, x2, (arg1[<span class="tok-number">2</span>]));</span> <span class="line" id="L574"> <span class="tok-kw">var</span> x88: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L575"> <span class="tok-kw">var</span> x89: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L576"> mulxU64(&x88, &x89, x2, (arg1[<span class="tok-number">1</span>]));</span> <span class="line" id="L577"> <span class="tok-kw">var</span> x90: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L578"> <span class="tok-kw">var</span> x91: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L579"> mulxU64(&x90, &x91, x2, (arg1[<span class="tok-number">0</span>]));</span> <span class="line" id="L580"> <span class="tok-kw">var</span> x92: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L581"> <span class="tok-kw">var</span> x93: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L582"> addcarryxU64(&x92, &x93, <span class="tok-number">0x0</span>, x91, x88);</span> <span class="line" id="L583"> <span class="tok-kw">var</span> x94: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L584"> <span class="tok-kw">var</span> x95: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L585"> addcarryxU64(&x94, &x95, x93, x89, x86);</span> <span class="line" id="L586"> <span class="tok-kw">var</span> x96: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L587"> <span class="tok-kw">var</span> x97: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L588"> addcarryxU64(&x96, &x97, x95, x87, x84);</span> <span class="line" id="L589"> <span class="tok-kw">const</span> x98 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x97) + x85);</span> <span class="line" id="L590"> <span class="tok-kw">var</span> x99: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L591"> <span class="tok-kw">var</span> x100: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L592"> addcarryxU64(&x99, &x100, <span class="tok-number">0x0</span>, x75, x90);</span> <span class="line" id="L593"> <span class="tok-kw">var</span> x101: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L594"> <span class="tok-kw">var</span> x102: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L595"> addcarryxU64(&x101, &x102, x100, x77, x92);</span> <span class="line" id="L596"> <span class="tok-kw">var</span> x103: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L597"> <span class="tok-kw">var</span> x104: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L598"> addcarryxU64(&x103, &x104, x102, x79, x94);</span> <span class="line" id="L599"> <span class="tok-kw">var</span> x105: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L600"> <span class="tok-kw">var</span> x106: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L601"> addcarryxU64(&x105, &x106, x104, x81, x96);</span> <span class="line" id="L602"> <span class="tok-kw">var</span> x107: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L603"> <span class="tok-kw">var</span> x108: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L604"> addcarryxU64(&x107, &x108, x106, x83, x98);</span> <span class="line" id="L605"> <span class="tok-kw">var</span> x109: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L606"> <span class="tok-kw">var</span> x110: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L607"> mulxU64(&x109, &x110, x99, <span class="tok-number">0xffffffff00000001</span>);</span> <span class="line" id="L608"> <span class="tok-kw">var</span> x111: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L609"> <span class="tok-kw">var</span> x112: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L610"> mulxU64(&x111, &x112, x99, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L611"> <span class="tok-kw">var</span> x113: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L612"> <span class="tok-kw">var</span> x114: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L613"> mulxU64(&x113, &x114, x99, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L614"> <span class="tok-kw">var</span> x115: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L615"> <span class="tok-kw">var</span> x116: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L616"> addcarryxU64(&x115, &x116, <span class="tok-number">0x0</span>, x114, x111);</span> <span class="line" id="L617"> <span class="tok-kw">const</span> x117 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x116) + x112);</span> <span class="line" id="L618"> <span class="tok-kw">var</span> x118: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L619"> <span class="tok-kw">var</span> x119: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L620"> addcarryxU64(&x118, &x119, <span class="tok-number">0x0</span>, x99, x113);</span> <span class="line" id="L621"> <span class="tok-kw">var</span> x120: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L622"> <span class="tok-kw">var</span> x121: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L623"> addcarryxU64(&x120, &x121, x119, x101, x115);</span> <span class="line" id="L624"> <span class="tok-kw">var</span> x122: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L625"> <span class="tok-kw">var</span> x123: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L626"> addcarryxU64(&x122, &x123, x121, x103, x117);</span> <span class="line" id="L627"> <span class="tok-kw">var</span> x124: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L628"> <span class="tok-kw">var</span> x125: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L629"> addcarryxU64(&x124, &x125, x123, x105, x109);</span> <span class="line" id="L630"> <span class="tok-kw">var</span> x126: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L631"> <span class="tok-kw">var</span> x127: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L632"> addcarryxU64(&x126, &x127, x125, x107, x110);</span> <span class="line" id="L633"> <span class="tok-kw">const</span> x128 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x127) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x108));</span> <span class="line" id="L634"> <span class="tok-kw">var</span> x129: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L635"> <span class="tok-kw">var</span> x130: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L636"> mulxU64(&x129, &x130, x3, (arg1[<span class="tok-number">3</span>]));</span> <span class="line" id="L637"> <span class="tok-kw">var</span> x131: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L638"> <span class="tok-kw">var</span> x132: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L639"> mulxU64(&x131, &x132, x3, (arg1[<span class="tok-number">2</span>]));</span> <span class="line" id="L640"> <span class="tok-kw">var</span> x133: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L641"> <span class="tok-kw">var</span> x134: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L642"> mulxU64(&x133, &x134, x3, (arg1[<span class="tok-number">1</span>]));</span> <span class="line" id="L643"> <span class="tok-kw">var</span> x135: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L644"> <span class="tok-kw">var</span> x136: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L645"> mulxU64(&x135, &x136, x3, (arg1[<span class="tok-number">0</span>]));</span> <span class="line" id="L646"> <span class="tok-kw">var</span> x137: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L647"> <span class="tok-kw">var</span> x138: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L648"> addcarryxU64(&x137, &x138, <span class="tok-number">0x0</span>, x136, x133);</span> <span class="line" id="L649"> <span class="tok-kw">var</span> x139: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L650"> <span class="tok-kw">var</span> x140: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L651"> addcarryxU64(&x139, &x140, x138, x134, x131);</span> <span class="line" id="L652"> <span class="tok-kw">var</span> x141: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L653"> <span class="tok-kw">var</span> x142: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L654"> addcarryxU64(&x141, &x142, x140, x132, x129);</span> <span class="line" id="L655"> <span class="tok-kw">const</span> x143 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x142) + x130);</span> <span class="line" id="L656"> <span class="tok-kw">var</span> x144: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L657"> <span class="tok-kw">var</span> x145: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L658"> addcarryxU64(&x144, &x145, <span class="tok-number">0x0</span>, x120, x135);</span> <span class="line" id="L659"> <span class="tok-kw">var</span> x146: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L660"> <span class="tok-kw">var</span> x147: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L661"> addcarryxU64(&x146, &x147, x145, x122, x137);</span> <span class="line" id="L662"> <span class="tok-kw">var</span> x148: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L663"> <span class="tok-kw">var</span> x149: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L664"> addcarryxU64(&x148, &x149, x147, x124, x139);</span> <span class="line" id="L665"> <span class="tok-kw">var</span> x150: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L666"> <span class="tok-kw">var</span> x151: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L667"> addcarryxU64(&x150, &x151, x149, x126, x141);</span> <span class="line" id="L668"> <span class="tok-kw">var</span> x152: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L669"> <span class="tok-kw">var</span> x153: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L670"> addcarryxU64(&x152, &x153, x151, x128, x143);</span> <span class="line" id="L671"> <span class="tok-kw">var</span> x154: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L672"> <span class="tok-kw">var</span> x155: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L673"> mulxU64(&x154, &x155, x144, <span class="tok-number">0xffffffff00000001</span>);</span> <span class="line" id="L674"> <span class="tok-kw">var</span> x156: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L675"> <span class="tok-kw">var</span> x157: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L676"> mulxU64(&x156, &x157, x144, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L677"> <span class="tok-kw">var</span> x158: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L678"> <span class="tok-kw">var</span> x159: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L679"> mulxU64(&x158, &x159, x144, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L680"> <span class="tok-kw">var</span> x160: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L681"> <span class="tok-kw">var</span> x161: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L682"> addcarryxU64(&x160, &x161, <span class="tok-number">0x0</span>, x159, x156);</span> <span class="line" id="L683"> <span class="tok-kw">const</span> x162 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x161) + x157);</span> <span class="line" id="L684"> <span class="tok-kw">var</span> x163: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L685"> <span class="tok-kw">var</span> x164: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L686"> addcarryxU64(&x163, &x164, <span class="tok-number">0x0</span>, x144, x158);</span> <span class="line" id="L687"> <span class="tok-kw">var</span> x165: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L688"> <span class="tok-kw">var</span> x166: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L689"> addcarryxU64(&x165, &x166, x164, x146, x160);</span> <span class="line" id="L690"> <span class="tok-kw">var</span> x167: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L691"> <span class="tok-kw">var</span> x168: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L692"> addcarryxU64(&x167, &x168, x166, x148, x162);</span> <span class="line" id="L693"> <span class="tok-kw">var</span> x169: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L694"> <span class="tok-kw">var</span> x170: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L695"> addcarryxU64(&x169, &x170, x168, x150, x154);</span> <span class="line" id="L696"> <span class="tok-kw">var</span> x171: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L697"> <span class="tok-kw">var</span> x172: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L698"> addcarryxU64(&x171, &x172, x170, x152, x155);</span> <span class="line" id="L699"> <span class="tok-kw">const</span> x173 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x172) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x153));</span> <span class="line" id="L700"> <span class="tok-kw">var</span> x174: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L701"> <span class="tok-kw">var</span> x175: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L702"> subborrowxU64(&x174, &x175, <span class="tok-number">0x0</span>, x165, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L703"> <span class="tok-kw">var</span> x176: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L704"> <span class="tok-kw">var</span> x177: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L705"> subborrowxU64(&x176, &x177, x175, x167, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L706"> <span class="tok-kw">var</span> x178: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L707"> <span class="tok-kw">var</span> x179: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L708"> subborrowxU64(&x178, &x179, x177, x169, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>));</span> <span class="line" id="L709"> <span class="tok-kw">var</span> x180: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L710"> <span class="tok-kw">var</span> x181: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L711"> subborrowxU64(&x180, &x181, x179, x171, <span class="tok-number">0xffffffff00000001</span>);</span> <span class="line" id="L712"> <span class="tok-kw">var</span> x182: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L713"> <span class="tok-kw">var</span> x183: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L714"> subborrowxU64(&x182, &x183, x181, x173, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>));</span> <span class="line" id="L715"> <span class="tok-kw">var</span> x184: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L716"> cmovznzU64(&x184, x183, x174, x165);</span> <span class="line" id="L717"> <span class="tok-kw">var</span> x185: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L718"> cmovznzU64(&x185, x183, x176, x167);</span> <span class="line" id="L719"> <span class="tok-kw">var</span> x186: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L720"> cmovznzU64(&x186, x183, x178, x169);</span> <span class="line" id="L721"> <span class="tok-kw">var</span> x187: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L722"> cmovznzU64(&x187, x183, x180, x171);</span> <span class="line" id="L723"> out1[<span class="tok-number">0</span>] = x184;</span> <span class="line" id="L724"> out1[<span class="tok-number">1</span>] = x185;</span> <span class="line" id="L725"> out1[<span class="tok-number">2</span>] = x186;</span> <span class="line" id="L726"> out1[<span class="tok-number">3</span>] = x187;</span> <span class="line" id="L727">}</span> <span class="line" id="L728"></span> <span class="line" id="L729"><span class="tok-comment">/// The function add adds two field elements in the Montgomery domain.</span></span> <span class="line" id="L730"><span class="tok-comment">///</span></span> <span class="line" id="L731"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L732"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L733"><span class="tok-comment">/// 0 ≤ eval arg2 < m</span></span> <span class="line" id="L734"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L735"><span class="tok-comment">/// eval (from_montgomery out1) mod m = (eval (from_montgomery arg1) + eval (from_montgomery arg2)) mod m</span></span> <span class="line" id="L736"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L737"><span class="tok-comment">///</span></span> <span class="line" id="L738"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">add</span>(out1: MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldElement, arg2: MontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L739"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L740"></span> <span class="line" id="L741"> <span class="tok-kw">var</span> x1: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L742"> <span class="tok-kw">var</span> x2: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L743"> addcarryxU64(&x1, &x2, <span class="tok-number">0x0</span>, (arg1[<span class="tok-number">0</span>]), (arg2[<span class="tok-number">0</span>]));</span> <span class="line" id="L744"> <span class="tok-kw">var</span> x3: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L745"> <span class="tok-kw">var</span> x4: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L746"> addcarryxU64(&x3, &x4, x2, (arg1[<span class="tok-number">1</span>]), (arg2[<span class="tok-number">1</span>]));</span> <span class="line" id="L747"> <span class="tok-kw">var</span> x5: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L748"> <span class="tok-kw">var</span> x6: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L749"> addcarryxU64(&x5, &x6, x4, (arg1[<span class="tok-number">2</span>]), (arg2[<span class="tok-number">2</span>]));</span> <span class="line" id="L750"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L751"> <span class="tok-kw">var</span> x8: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L752"> addcarryxU64(&x7, &x8, x6, (arg1[<span class="tok-number">3</span>]), (arg2[<span class="tok-number">3</span>]));</span> <span class="line" id="L753"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L754"> <span class="tok-kw">var</span> x10: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L755"> subborrowxU64(&x9, &x10, <span class="tok-number">0x0</span>, x1, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L756"> <span class="tok-kw">var</span> x11: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L757"> <span class="tok-kw">var</span> x12: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L758"> subborrowxU64(&x11, &x12, x10, x3, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L759"> <span class="tok-kw">var</span> x13: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L760"> <span class="tok-kw">var</span> x14: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L761"> subborrowxU64(&x13, &x14, x12, x5, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>));</span> <span class="line" id="L762"> <span class="tok-kw">var</span> x15: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L763"> <span class="tok-kw">var</span> x16: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L764"> subborrowxU64(&x15, &x16, x14, x7, <span class="tok-number">0xffffffff00000001</span>);</span> <span class="line" id="L765"> <span class="tok-kw">var</span> x17: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L766"> <span class="tok-kw">var</span> x18: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L767"> subborrowxU64(&x17, &x18, x16, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x8), <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>));</span> <span class="line" id="L768"> <span class="tok-kw">var</span> x19: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L769"> cmovznzU64(&x19, x18, x9, x1);</span> <span class="line" id="L770"> <span class="tok-kw">var</span> x20: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L771"> cmovznzU64(&x20, x18, x11, x3);</span> <span class="line" id="L772"> <span class="tok-kw">var</span> x21: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L773"> cmovznzU64(&x21, x18, x13, x5);</span> <span class="line" id="L774"> <span class="tok-kw">var</span> x22: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L775"> cmovznzU64(&x22, x18, x15, x7);</span> <span class="line" id="L776"> out1[<span class="tok-number">0</span>] = x19;</span> <span class="line" id="L777"> out1[<span class="tok-number">1</span>] = x20;</span> <span class="line" id="L778"> out1[<span class="tok-number">2</span>] = x21;</span> <span class="line" id="L779"> out1[<span class="tok-number">3</span>] = x22;</span> <span class="line" id="L780">}</span> <span class="line" id="L781"></span> <span class="line" id="L782"><span class="tok-comment">/// The function sub subtracts two field elements in the Montgomery domain.</span></span> <span class="line" id="L783"><span class="tok-comment">///</span></span> <span class="line" id="L784"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L785"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L786"><span class="tok-comment">/// 0 ≤ eval arg2 < m</span></span> <span class="line" id="L787"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L788"><span class="tok-comment">/// eval (from_montgomery out1) mod m = (eval (from_montgomery arg1) - eval (from_montgomery arg2)) mod m</span></span> <span class="line" id="L789"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L790"><span class="tok-comment">///</span></span> <span class="line" id="L791"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">sub</span>(out1: MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldElement, arg2: MontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L792"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L793"></span> <span class="line" id="L794"> <span class="tok-kw">var</span> x1: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L795"> <span class="tok-kw">var</span> x2: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L796"> subborrowxU64(&x1, &x2, <span class="tok-number">0x0</span>, (arg1[<span class="tok-number">0</span>]), (arg2[<span class="tok-number">0</span>]));</span> <span class="line" id="L797"> <span class="tok-kw">var</span> x3: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L798"> <span class="tok-kw">var</span> x4: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L799"> subborrowxU64(&x3, &x4, x2, (arg1[<span class="tok-number">1</span>]), (arg2[<span class="tok-number">1</span>]));</span> <span class="line" id="L800"> <span class="tok-kw">var</span> x5: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L801"> <span class="tok-kw">var</span> x6: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L802"> subborrowxU64(&x5, &x6, x4, (arg1[<span class="tok-number">2</span>]), (arg2[<span class="tok-number">2</span>]));</span> <span class="line" id="L803"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L804"> <span class="tok-kw">var</span> x8: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L805"> subborrowxU64(&x7, &x8, x6, (arg1[<span class="tok-number">3</span>]), (arg2[<span class="tok-number">3</span>]));</span> <span class="line" id="L806"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L807"> cmovznzU64(&x9, x8, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L808"> <span class="tok-kw">var</span> x10: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L809"> <span class="tok-kw">var</span> x11: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L810"> addcarryxU64(&x10, &x11, <span class="tok-number">0x0</span>, x1, x9);</span> <span class="line" id="L811"> <span class="tok-kw">var</span> x12: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L812"> <span class="tok-kw">var</span> x13: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L813"> addcarryxU64(&x12, &x13, x11, x3, (x9 & <span class="tok-number">0xffffffff</span>));</span> <span class="line" id="L814"> <span class="tok-kw">var</span> x14: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L815"> <span class="tok-kw">var</span> x15: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L816"> addcarryxU64(&x14, &x15, x13, x5, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>));</span> <span class="line" id="L817"> <span class="tok-kw">var</span> x16: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L818"> <span class="tok-kw">var</span> x17: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L819"> addcarryxU64(&x16, &x17, x15, x7, (x9 & <span class="tok-number">0xffffffff00000001</span>));</span> <span class="line" id="L820"> out1[<span class="tok-number">0</span>] = x10;</span> <span class="line" id="L821"> out1[<span class="tok-number">1</span>] = x12;</span> <span class="line" id="L822"> out1[<span class="tok-number">2</span>] = x14;</span> <span class="line" id="L823"> out1[<span class="tok-number">3</span>] = x16;</span> <span class="line" id="L824">}</span> <span class="line" id="L825"></span> <span class="line" id="L826"><span class="tok-comment">/// The function opp negates a field element in the Montgomery domain.</span></span> <span class="line" id="L827"><span class="tok-comment">///</span></span> <span class="line" id="L828"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L829"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L830"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L831"><span class="tok-comment">/// eval (from_montgomery out1) mod m = -eval (from_montgomery arg1) mod m</span></span> <span class="line" id="L832"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L833"><span class="tok-comment">///</span></span> <span class="line" id="L834"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">opp</span>(out1: MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L835"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L836"></span> <span class="line" id="L837"> <span class="tok-kw">var</span> x1: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L838"> <span class="tok-kw">var</span> x2: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L839"> subborrowxU64(&x1, &x2, <span class="tok-number">0x0</span>, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), (arg1[<span class="tok-number">0</span>]));</span> <span class="line" id="L840"> <span class="tok-kw">var</span> x3: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L841"> <span class="tok-kw">var</span> x4: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L842"> subborrowxU64(&x3, &x4, x2, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), (arg1[<span class="tok-number">1</span>]));</span> <span class="line" id="L843"> <span class="tok-kw">var</span> x5: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L844"> <span class="tok-kw">var</span> x6: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L845"> subborrowxU64(&x5, &x6, x4, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), (arg1[<span class="tok-number">2</span>]));</span> <span class="line" id="L846"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L847"> <span class="tok-kw">var</span> x8: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L848"> subborrowxU64(&x7, &x8, x6, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), (arg1[<span class="tok-number">3</span>]));</span> <span class="line" id="L849"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L850"> cmovznzU64(&x9, x8, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L851"> <span class="tok-kw">var</span> x10: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L852"> <span class="tok-kw">var</span> x11: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L853"> addcarryxU64(&x10, &x11, <span class="tok-number">0x0</span>, x1, x9);</span> <span class="line" id="L854"> <span class="tok-kw">var</span> x12: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L855"> <span class="tok-kw">var</span> x13: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L856"> addcarryxU64(&x12, &x13, x11, x3, (x9 & <span class="tok-number">0xffffffff</span>));</span> <span class="line" id="L857"> <span class="tok-kw">var</span> x14: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L858"> <span class="tok-kw">var</span> x15: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L859"> addcarryxU64(&x14, &x15, x13, x5, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>));</span> <span class="line" id="L860"> <span class="tok-kw">var</span> x16: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L861"> <span class="tok-kw">var</span> x17: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L862"> addcarryxU64(&x16, &x17, x15, x7, (x9 & <span class="tok-number">0xffffffff00000001</span>));</span> <span class="line" id="L863"> out1[<span class="tok-number">0</span>] = x10;</span> <span class="line" id="L864"> out1[<span class="tok-number">1</span>] = x12;</span> <span class="line" id="L865"> out1[<span class="tok-number">2</span>] = x14;</span> <span class="line" id="L866"> out1[<span class="tok-number">3</span>] = x16;</span> <span class="line" id="L867">}</span> <span class="line" id="L868"></span> <span class="line" id="L869"><span class="tok-comment">/// The function fromMontgomery translates a field element out of the Montgomery domain.</span></span> <span class="line" id="L870"><span class="tok-comment">///</span></span> <span class="line" id="L871"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L872"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L873"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L874"><span class="tok-comment">/// eval out1 mod m = (eval arg1 * ((2^64)⁻¹ mod m)^4) mod m</span></span> <span class="line" id="L875"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L876"><span class="tok-comment">///</span></span> <span class="line" id="L877"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromMontgomery</span>(out1: NonMontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L878"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L879"></span> <span class="line" id="L880"> <span class="tok-kw">const</span> x1 = (arg1[<span class="tok-number">0</span>]);</span> <span class="line" id="L881"> <span class="tok-kw">var</span> x2: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L882"> <span class="tok-kw">var</span> x3: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L883"> mulxU64(&x2, &x3, x1, <span class="tok-number">0xffffffff00000001</span>);</span> <span class="line" id="L884"> <span class="tok-kw">var</span> x4: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L885"> <span class="tok-kw">var</span> x5: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L886"> mulxU64(&x4, &x5, x1, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L887"> <span class="tok-kw">var</span> x6: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L888"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L889"> mulxU64(&x6, &x7, x1, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L890"> <span class="tok-kw">var</span> x8: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L891"> <span class="tok-kw">var</span> x9: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L892"> addcarryxU64(&x8, &x9, <span class="tok-number">0x0</span>, x7, x4);</span> <span class="line" id="L893"> <span class="tok-kw">var</span> x10: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L894"> <span class="tok-kw">var</span> x11: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L895"> addcarryxU64(&x10, &x11, <span class="tok-number">0x0</span>, x1, x6);</span> <span class="line" id="L896"> <span class="tok-kw">var</span> x12: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L897"> <span class="tok-kw">var</span> x13: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L898"> addcarryxU64(&x12, &x13, x11, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), x8);</span> <span class="line" id="L899"> <span class="tok-kw">var</span> x14: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L900"> <span class="tok-kw">var</span> x15: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L901"> addcarryxU64(&x14, &x15, <span class="tok-number">0x0</span>, x12, (arg1[<span class="tok-number">1</span>]));</span> <span class="line" id="L902"> <span class="tok-kw">var</span> x16: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L903"> <span class="tok-kw">var</span> x17: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L904"> mulxU64(&x16, &x17, x14, <span class="tok-number">0xffffffff00000001</span>);</span> <span class="line" id="L905"> <span class="tok-kw">var</span> x18: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L906"> <span class="tok-kw">var</span> x19: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L907"> mulxU64(&x18, &x19, x14, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L908"> <span class="tok-kw">var</span> x20: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L909"> <span class="tok-kw">var</span> x21: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L910"> mulxU64(&x20, &x21, x14, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L911"> <span class="tok-kw">var</span> x22: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L912"> <span class="tok-kw">var</span> x23: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L913"> addcarryxU64(&x22, &x23, <span class="tok-number">0x0</span>, x21, x18);</span> <span class="line" id="L914"> <span class="tok-kw">var</span> x24: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L915"> <span class="tok-kw">var</span> x25: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L916"> addcarryxU64(&x24, &x25, <span class="tok-number">0x0</span>, x14, x20);</span> <span class="line" id="L917"> <span class="tok-kw">var</span> x26: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L918"> <span class="tok-kw">var</span> x27: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L919"> addcarryxU64(&x26, &x27, x25, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x15) + (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x13) + (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x9) + x5))), x22);</span> <span class="line" id="L920"> <span class="tok-kw">var</span> x28: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L921"> <span class="tok-kw">var</span> x29: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L922"> addcarryxU64(&x28, &x29, x27, x2, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x23) + x19));</span> <span class="line" id="L923"> <span class="tok-kw">var</span> x30: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L924"> <span class="tok-kw">var</span> x31: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L925"> addcarryxU64(&x30, &x31, x29, x3, x16);</span> <span class="line" id="L926"> <span class="tok-kw">var</span> x32: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L927"> <span class="tok-kw">var</span> x33: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L928"> addcarryxU64(&x32, &x33, <span class="tok-number">0x0</span>, x26, (arg1[<span class="tok-number">2</span>]));</span> <span class="line" id="L929"> <span class="tok-kw">var</span> x34: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L930"> <span class="tok-kw">var</span> x35: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L931"> addcarryxU64(&x34, &x35, x33, x28, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>));</span> <span class="line" id="L932"> <span class="tok-kw">var</span> x36: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L933"> <span class="tok-kw">var</span> x37: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L934"> addcarryxU64(&x36, &x37, x35, x30, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>));</span> <span class="line" id="L935"> <span class="tok-kw">var</span> x38: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L936"> <span class="tok-kw">var</span> x39: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L937"> mulxU64(&x38, &x39, x32, <span class="tok-number">0xffffffff00000001</span>);</span> <span class="line" id="L938"> <span class="tok-kw">var</span> x40: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L939"> <span class="tok-kw">var</span> x41: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L940"> mulxU64(&x40, &x41, x32, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L941"> <span class="tok-kw">var</span> x42: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L942"> <span class="tok-kw">var</span> x43: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L943"> mulxU64(&x42, &x43, x32, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L944"> <span class="tok-kw">var</span> x44: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L945"> <span class="tok-kw">var</span> x45: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L946"> addcarryxU64(&x44, &x45, <span class="tok-number">0x0</span>, x43, x40);</span> <span class="line" id="L947"> <span class="tok-kw">var</span> x46: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L948"> <span class="tok-kw">var</span> x47: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L949"> addcarryxU64(&x46, &x47, <span class="tok-number">0x0</span>, x32, x42);</span> <span class="line" id="L950"> <span class="tok-kw">var</span> x48: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L951"> <span class="tok-kw">var</span> x49: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L952"> addcarryxU64(&x48, &x49, x47, x34, x44);</span> <span class="line" id="L953"> <span class="tok-kw">var</span> x50: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L954"> <span class="tok-kw">var</span> x51: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L955"> addcarryxU64(&x50, &x51, x49, x36, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x45) + x41));</span> <span class="line" id="L956"> <span class="tok-kw">var</span> x52: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L957"> <span class="tok-kw">var</span> x53: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L958"> addcarryxU64(&x52, &x53, x51, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x37) + (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x31) + x17)), x38);</span> <span class="line" id="L959"> <span class="tok-kw">var</span> x54: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L960"> <span class="tok-kw">var</span> x55: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L961"> addcarryxU64(&x54, &x55, <span class="tok-number">0x0</span>, x48, (arg1[<span class="tok-number">3</span>]));</span> <span class="line" id="L962"> <span class="tok-kw">var</span> x56: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L963"> <span class="tok-kw">var</span> x57: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L964"> addcarryxU64(&x56, &x57, x55, x50, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>));</span> <span class="line" id="L965"> <span class="tok-kw">var</span> x58: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L966"> <span class="tok-kw">var</span> x59: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L967"> addcarryxU64(&x58, &x59, x57, x52, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>));</span> <span class="line" id="L968"> <span class="tok-kw">var</span> x60: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L969"> <span class="tok-kw">var</span> x61: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L970"> mulxU64(&x60, &x61, x54, <span class="tok-number">0xffffffff00000001</span>);</span> <span class="line" id="L971"> <span class="tok-kw">var</span> x62: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L972"> <span class="tok-kw">var</span> x63: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L973"> mulxU64(&x62, &x63, x54, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L974"> <span class="tok-kw">var</span> x64: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L975"> <span class="tok-kw">var</span> x65: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L976"> mulxU64(&x64, &x65, x54, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L977"> <span class="tok-kw">var</span> x66: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L978"> <span class="tok-kw">var</span> x67: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L979"> addcarryxU64(&x66, &x67, <span class="tok-number">0x0</span>, x65, x62);</span> <span class="line" id="L980"> <span class="tok-kw">var</span> x68: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L981"> <span class="tok-kw">var</span> x69: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L982"> addcarryxU64(&x68, &x69, <span class="tok-number">0x0</span>, x54, x64);</span> <span class="line" id="L983"> <span class="tok-kw">var</span> x70: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L984"> <span class="tok-kw">var</span> x71: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L985"> addcarryxU64(&x70, &x71, x69, x56, x66);</span> <span class="line" id="L986"> <span class="tok-kw">var</span> x72: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L987"> <span class="tok-kw">var</span> x73: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L988"> addcarryxU64(&x72, &x73, x71, x58, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x67) + x63));</span> <span class="line" id="L989"> <span class="tok-kw">var</span> x74: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L990"> <span class="tok-kw">var</span> x75: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L991"> addcarryxU64(&x74, &x75, x73, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x59) + (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x53) + x39)), x60);</span> <span class="line" id="L992"> <span class="tok-kw">const</span> x76 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x75) + x61);</span> <span class="line" id="L993"> <span class="tok-kw">var</span> x77: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L994"> <span class="tok-kw">var</span> x78: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L995"> subborrowxU64(&x77, &x78, <span class="tok-number">0x0</span>, x70, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L996"> <span class="tok-kw">var</span> x79: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L997"> <span class="tok-kw">var</span> x80: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L998"> subborrowxU64(&x79, &x80, x78, x72, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L999"> <span class="tok-kw">var</span> x81: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1000"> <span class="tok-kw">var</span> x82: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1001"> subborrowxU64(&x81, &x82, x80, x74, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>));</span> <span class="line" id="L1002"> <span class="tok-kw">var</span> x83: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1003"> <span class="tok-kw">var</span> x84: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1004"> subborrowxU64(&x83, &x84, x82, x76, <span class="tok-number">0xffffffff00000001</span>);</span> <span class="line" id="L1005"> <span class="tok-kw">var</span> x85: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1006"> <span class="tok-kw">var</span> x86: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1007"> subborrowxU64(&x85, &x86, x84, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>));</span> <span class="line" id="L1008"> <span class="tok-kw">var</span> x87: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1009"> cmovznzU64(&x87, x86, x77, x70);</span> <span class="line" id="L1010"> <span class="tok-kw">var</span> x88: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1011"> cmovznzU64(&x88, x86, x79, x72);</span> <span class="line" id="L1012"> <span class="tok-kw">var</span> x89: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1013"> cmovznzU64(&x89, x86, x81, x74);</span> <span class="line" id="L1014"> <span class="tok-kw">var</span> x90: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1015"> cmovznzU64(&x90, x86, x83, x76);</span> <span class="line" id="L1016"> out1[<span class="tok-number">0</span>] = x87;</span> <span class="line" id="L1017"> out1[<span class="tok-number">1</span>] = x88;</span> <span class="line" id="L1018"> out1[<span class="tok-number">2</span>] = x89;</span> <span class="line" id="L1019"> out1[<span class="tok-number">3</span>] = x90;</span> <span class="line" id="L1020">}</span> <span class="line" id="L1021"></span> <span class="line" id="L1022"><span class="tok-comment">/// The function toMontgomery translates a field element into the Montgomery domain.</span></span> <span class="line" id="L1023"><span class="tok-comment">///</span></span> <span class="line" id="L1024"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L1025"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L1026"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L1027"><span class="tok-comment">/// eval (from_montgomery out1) mod m = eval arg1 mod m</span></span> <span class="line" id="L1028"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L1029"><span class="tok-comment">///</span></span> <span class="line" id="L1030"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toMontgomery</span>(out1: MontgomeryDomainFieldElement, arg1: NonMontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L1031"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L1032"></span> <span class="line" id="L1033"> <span class="tok-kw">const</span> x1 = (arg1[<span class="tok-number">1</span>]);</span> <span class="line" id="L1034"> <span class="tok-kw">const</span> x2 = (arg1[<span class="tok-number">2</span>]);</span> <span class="line" id="L1035"> <span class="tok-kw">const</span> x3 = (arg1[<span class="tok-number">3</span>]);</span> <span class="line" id="L1036"> <span class="tok-kw">const</span> x4 = (arg1[<span class="tok-number">0</span>]);</span> <span class="line" id="L1037"> <span class="tok-kw">var</span> x5: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1038"> <span class="tok-kw">var</span> x6: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1039"> mulxU64(&x5, &x6, x4, <span class="tok-number">0x4fffffffd</span>);</span> <span class="line" id="L1040"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1041"> <span class="tok-kw">var</span> x8: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1042"> mulxU64(&x7, &x8, x4, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L1043"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1044"> <span class="tok-kw">var</span> x10: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1045"> mulxU64(&x9, &x10, x4, <span class="tok-number">0xfffffffbffffffff</span>);</span> <span class="line" id="L1046"> <span class="tok-kw">var</span> x11: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1047"> <span class="tok-kw">var</span> x12: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1048"> mulxU64(&x11, &x12, x4, <span class="tok-number">0x3</span>);</span> <span class="line" id="L1049"> <span class="tok-kw">var</span> x13: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1050"> <span class="tok-kw">var</span> x14: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1051"> addcarryxU64(&x13, &x14, <span class="tok-number">0x0</span>, x12, x9);</span> <span class="line" id="L1052"> <span class="tok-kw">var</span> x15: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1053"> <span class="tok-kw">var</span> x16: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1054"> addcarryxU64(&x15, &x16, x14, x10, x7);</span> <span class="line" id="L1055"> <span class="tok-kw">var</span> x17: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1056"> <span class="tok-kw">var</span> x18: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1057"> addcarryxU64(&x17, &x18, x16, x8, x5);</span> <span class="line" id="L1058"> <span class="tok-kw">var</span> x19: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1059"> <span class="tok-kw">var</span> x20: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1060"> mulxU64(&x19, &x20, x11, <span class="tok-number">0xffffffff00000001</span>);</span> <span class="line" id="L1061"> <span class="tok-kw">var</span> x21: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1062"> <span class="tok-kw">var</span> x22: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1063"> mulxU64(&x21, &x22, x11, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L1064"> <span class="tok-kw">var</span> x23: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1065"> <span class="tok-kw">var</span> x24: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1066"> mulxU64(&x23, &x24, x11, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1067"> <span class="tok-kw">var</span> x25: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1068"> <span class="tok-kw">var</span> x26: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1069"> addcarryxU64(&x25, &x26, <span class="tok-number">0x0</span>, x24, x21);</span> <span class="line" id="L1070"> <span class="tok-kw">var</span> x27: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1071"> <span class="tok-kw">var</span> x28: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1072"> addcarryxU64(&x27, &x28, <span class="tok-number">0x0</span>, x11, x23);</span> <span class="line" id="L1073"> <span class="tok-kw">var</span> x29: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1074"> <span class="tok-kw">var</span> x30: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1075"> addcarryxU64(&x29, &x30, x28, x13, x25);</span> <span class="line" id="L1076"> <span class="tok-kw">var</span> x31: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1077"> <span class="tok-kw">var</span> x32: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1078"> addcarryxU64(&x31, &x32, x30, x15, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x26) + x22));</span> <span class="line" id="L1079"> <span class="tok-kw">var</span> x33: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1080"> <span class="tok-kw">var</span> x34: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1081"> addcarryxU64(&x33, &x34, x32, x17, x19);</span> <span class="line" id="L1082"> <span class="tok-kw">var</span> x35: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1083"> <span class="tok-kw">var</span> x36: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1084"> addcarryxU64(&x35, &x36, x34, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x18) + x6), x20);</span> <span class="line" id="L1085"> <span class="tok-kw">var</span> x37: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1086"> <span class="tok-kw">var</span> x38: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1087"> mulxU64(&x37, &x38, x1, <span class="tok-number">0x4fffffffd</span>);</span> <span class="line" id="L1088"> <span class="tok-kw">var</span> x39: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1089"> <span class="tok-kw">var</span> x40: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1090"> mulxU64(&x39, &x40, x1, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L1091"> <span class="tok-kw">var</span> x41: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1092"> <span class="tok-kw">var</span> x42: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1093"> mulxU64(&x41, &x42, x1, <span class="tok-number">0xfffffffbffffffff</span>);</span> <span class="line" id="L1094"> <span class="tok-kw">var</span> x43: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1095"> <span class="tok-kw">var</span> x44: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1096"> mulxU64(&x43, &x44, x1, <span class="tok-number">0x3</span>);</span> <span class="line" id="L1097"> <span class="tok-kw">var</span> x45: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1098"> <span class="tok-kw">var</span> x46: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1099"> addcarryxU64(&x45, &x46, <span class="tok-number">0x0</span>, x44, x41);</span> <span class="line" id="L1100"> <span class="tok-kw">var</span> x47: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1101"> <span class="tok-kw">var</span> x48: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1102"> addcarryxU64(&x47, &x48, x46, x42, x39);</span> <span class="line" id="L1103"> <span class="tok-kw">var</span> x49: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1104"> <span class="tok-kw">var</span> x50: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1105"> addcarryxU64(&x49, &x50, x48, x40, x37);</span> <span class="line" id="L1106"> <span class="tok-kw">var</span> x51: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1107"> <span class="tok-kw">var</span> x52: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1108"> addcarryxU64(&x51, &x52, <span class="tok-number">0x0</span>, x29, x43);</span> <span class="line" id="L1109"> <span class="tok-kw">var</span> x53: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1110"> <span class="tok-kw">var</span> x54: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1111"> addcarryxU64(&x53, &x54, x52, x31, x45);</span> <span class="line" id="L1112"> <span class="tok-kw">var</span> x55: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1113"> <span class="tok-kw">var</span> x56: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1114"> addcarryxU64(&x55, &x56, x54, x33, x47);</span> <span class="line" id="L1115"> <span class="tok-kw">var</span> x57: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1116"> <span class="tok-kw">var</span> x58: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1117"> addcarryxU64(&x57, &x58, x56, x35, x49);</span> <span class="line" id="L1118"> <span class="tok-kw">var</span> x59: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1119"> <span class="tok-kw">var</span> x60: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1120"> mulxU64(&x59, &x60, x51, <span class="tok-number">0xffffffff00000001</span>);</span> <span class="line" id="L1121"> <span class="tok-kw">var</span> x61: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1122"> <span class="tok-kw">var</span> x62: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1123"> mulxU64(&x61, &x62, x51, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L1124"> <span class="tok-kw">var</span> x63: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1125"> <span class="tok-kw">var</span> x64: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1126"> mulxU64(&x63, &x64, x51, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1127"> <span class="tok-kw">var</span> x65: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1128"> <span class="tok-kw">var</span> x66: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1129"> addcarryxU64(&x65, &x66, <span class="tok-number">0x0</span>, x64, x61);</span> <span class="line" id="L1130"> <span class="tok-kw">var</span> x67: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1131"> <span class="tok-kw">var</span> x68: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1132"> addcarryxU64(&x67, &x68, <span class="tok-number">0x0</span>, x51, x63);</span> <span class="line" id="L1133"> <span class="tok-kw">var</span> x69: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1134"> <span class="tok-kw">var</span> x70: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1135"> addcarryxU64(&x69, &x70, x68, x53, x65);</span> <span class="line" id="L1136"> <span class="tok-kw">var</span> x71: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1137"> <span class="tok-kw">var</span> x72: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1138"> addcarryxU64(&x71, &x72, x70, x55, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x66) + x62));</span> <span class="line" id="L1139"> <span class="tok-kw">var</span> x73: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1140"> <span class="tok-kw">var</span> x74: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1141"> addcarryxU64(&x73, &x74, x72, x57, x59);</span> <span class="line" id="L1142"> <span class="tok-kw">var</span> x75: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1143"> <span class="tok-kw">var</span> x76: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1144"> addcarryxU64(&x75, &x76, x74, ((<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x58) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x36)) + (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x50) + x38)), x60);</span> <span class="line" id="L1145"> <span class="tok-kw">var</span> x77: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1146"> <span class="tok-kw">var</span> x78: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1147"> mulxU64(&x77, &x78, x2, <span class="tok-number">0x4fffffffd</span>);</span> <span class="line" id="L1148"> <span class="tok-kw">var</span> x79: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1149"> <span class="tok-kw">var</span> x80: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1150"> mulxU64(&x79, &x80, x2, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L1151"> <span class="tok-kw">var</span> x81: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1152"> <span class="tok-kw">var</span> x82: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1153"> mulxU64(&x81, &x82, x2, <span class="tok-number">0xfffffffbffffffff</span>);</span> <span class="line" id="L1154"> <span class="tok-kw">var</span> x83: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1155"> <span class="tok-kw">var</span> x84: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1156"> mulxU64(&x83, &x84, x2, <span class="tok-number">0x3</span>);</span> <span class="line" id="L1157"> <span class="tok-kw">var</span> x85: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1158"> <span class="tok-kw">var</span> x86: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1159"> addcarryxU64(&x85, &x86, <span class="tok-number">0x0</span>, x84, x81);</span> <span class="line" id="L1160"> <span class="tok-kw">var</span> x87: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1161"> <span class="tok-kw">var</span> x88: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1162"> addcarryxU64(&x87, &x88, x86, x82, x79);</span> <span class="line" id="L1163"> <span class="tok-kw">var</span> x89: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1164"> <span class="tok-kw">var</span> x90: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1165"> addcarryxU64(&x89, &x90, x88, x80, x77);</span> <span class="line" id="L1166"> <span class="tok-kw">var</span> x91: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1167"> <span class="tok-kw">var</span> x92: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1168"> addcarryxU64(&x91, &x92, <span class="tok-number">0x0</span>, x69, x83);</span> <span class="line" id="L1169"> <span class="tok-kw">var</span> x93: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1170"> <span class="tok-kw">var</span> x94: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1171"> addcarryxU64(&x93, &x94, x92, x71, x85);</span> <span class="line" id="L1172"> <span class="tok-kw">var</span> x95: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1173"> <span class="tok-kw">var</span> x96: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1174"> addcarryxU64(&x95, &x96, x94, x73, x87);</span> <span class="line" id="L1175"> <span class="tok-kw">var</span> x97: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1176"> <span class="tok-kw">var</span> x98: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1177"> addcarryxU64(&x97, &x98, x96, x75, x89);</span> <span class="line" id="L1178"> <span class="tok-kw">var</span> x99: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1179"> <span class="tok-kw">var</span> x100: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1180"> mulxU64(&x99, &x100, x91, <span class="tok-number">0xffffffff00000001</span>);</span> <span class="line" id="L1181"> <span class="tok-kw">var</span> x101: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1182"> <span class="tok-kw">var</span> x102: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1183"> mulxU64(&x101, &x102, x91, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L1184"> <span class="tok-kw">var</span> x103: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1185"> <span class="tok-kw">var</span> x104: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1186"> mulxU64(&x103, &x104, x91, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1187"> <span class="tok-kw">var</span> x105: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1188"> <span class="tok-kw">var</span> x106: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1189"> addcarryxU64(&x105, &x106, <span class="tok-number">0x0</span>, x104, x101);</span> <span class="line" id="L1190"> <span class="tok-kw">var</span> x107: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1191"> <span class="tok-kw">var</span> x108: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1192"> addcarryxU64(&x107, &x108, <span class="tok-number">0x0</span>, x91, x103);</span> <span class="line" id="L1193"> <span class="tok-kw">var</span> x109: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1194"> <span class="tok-kw">var</span> x110: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1195"> addcarryxU64(&x109, &x110, x108, x93, x105);</span> <span class="line" id="L1196"> <span class="tok-kw">var</span> x111: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1197"> <span class="tok-kw">var</span> x112: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1198"> addcarryxU64(&x111, &x112, x110, x95, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x106) + x102));</span> <span class="line" id="L1199"> <span class="tok-kw">var</span> x113: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1200"> <span class="tok-kw">var</span> x114: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1201"> addcarryxU64(&x113, &x114, x112, x97, x99);</span> <span class="line" id="L1202"> <span class="tok-kw">var</span> x115: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1203"> <span class="tok-kw">var</span> x116: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1204"> addcarryxU64(&x115, &x116, x114, ((<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x98) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x76)) + (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x90) + x78)), x100);</span> <span class="line" id="L1205"> <span class="tok-kw">var</span> x117: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1206"> <span class="tok-kw">var</span> x118: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1207"> mulxU64(&x117, &x118, x3, <span class="tok-number">0x4fffffffd</span>);</span> <span class="line" id="L1208"> <span class="tok-kw">var</span> x119: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1209"> <span class="tok-kw">var</span> x120: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1210"> mulxU64(&x119, &x120, x3, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L1211"> <span class="tok-kw">var</span> x121: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1212"> <span class="tok-kw">var</span> x122: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1213"> mulxU64(&x121, &x122, x3, <span class="tok-number">0xfffffffbffffffff</span>);</span> <span class="line" id="L1214"> <span class="tok-kw">var</span> x123: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1215"> <span class="tok-kw">var</span> x124: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1216"> mulxU64(&x123, &x124, x3, <span class="tok-number">0x3</span>);</span> <span class="line" id="L1217"> <span class="tok-kw">var</span> x125: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1218"> <span class="tok-kw">var</span> x126: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1219"> addcarryxU64(&x125, &x126, <span class="tok-number">0x0</span>, x124, x121);</span> <span class="line" id="L1220"> <span class="tok-kw">var</span> x127: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1221"> <span class="tok-kw">var</span> x128: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1222"> addcarryxU64(&x127, &x128, x126, x122, x119);</span> <span class="line" id="L1223"> <span class="tok-kw">var</span> x129: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1224"> <span class="tok-kw">var</span> x130: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1225"> addcarryxU64(&x129, &x130, x128, x120, x117);</span> <span class="line" id="L1226"> <span class="tok-kw">var</span> x131: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1227"> <span class="tok-kw">var</span> x132: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1228"> addcarryxU64(&x131, &x132, <span class="tok-number">0x0</span>, x109, x123);</span> <span class="line" id="L1229"> <span class="tok-kw">var</span> x133: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1230"> <span class="tok-kw">var</span> x134: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1231"> addcarryxU64(&x133, &x134, x132, x111, x125);</span> <span class="line" id="L1232"> <span class="tok-kw">var</span> x135: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1233"> <span class="tok-kw">var</span> x136: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1234"> addcarryxU64(&x135, &x136, x134, x113, x127);</span> <span class="line" id="L1235"> <span class="tok-kw">var</span> x137: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1236"> <span class="tok-kw">var</span> x138: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1237"> addcarryxU64(&x137, &x138, x136, x115, x129);</span> <span class="line" id="L1238"> <span class="tok-kw">var</span> x139: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1239"> <span class="tok-kw">var</span> x140: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1240"> mulxU64(&x139, &x140, x131, <span class="tok-number">0xffffffff00000001</span>);</span> <span class="line" id="L1241"> <span class="tok-kw">var</span> x141: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1242"> <span class="tok-kw">var</span> x142: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1243"> mulxU64(&x141, &x142, x131, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L1244"> <span class="tok-kw">var</span> x143: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1245"> <span class="tok-kw">var</span> x144: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1246"> mulxU64(&x143, &x144, x131, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1247"> <span class="tok-kw">var</span> x145: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1248"> <span class="tok-kw">var</span> x146: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1249"> addcarryxU64(&x145, &x146, <span class="tok-number">0x0</span>, x144, x141);</span> <span class="line" id="L1250"> <span class="tok-kw">var</span> x147: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1251"> <span class="tok-kw">var</span> x148: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1252"> addcarryxU64(&x147, &x148, <span class="tok-number">0x0</span>, x131, x143);</span> <span class="line" id="L1253"> <span class="tok-kw">var</span> x149: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1254"> <span class="tok-kw">var</span> x150: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1255"> addcarryxU64(&x149, &x150, x148, x133, x145);</span> <span class="line" id="L1256"> <span class="tok-kw">var</span> x151: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1257"> <span class="tok-kw">var</span> x152: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1258"> addcarryxU64(&x151, &x152, x150, x135, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x146) + x142));</span> <span class="line" id="L1259"> <span class="tok-kw">var</span> x153: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1260"> <span class="tok-kw">var</span> x154: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1261"> addcarryxU64(&x153, &x154, x152, x137, x139);</span> <span class="line" id="L1262"> <span class="tok-kw">var</span> x155: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1263"> <span class="tok-kw">var</span> x156: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1264"> addcarryxU64(&x155, &x156, x154, ((<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x138) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x116)) + (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x130) + x118)), x140);</span> <span class="line" id="L1265"> <span class="tok-kw">var</span> x157: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1266"> <span class="tok-kw">var</span> x158: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1267"> subborrowxU64(&x157, &x158, <span class="tok-number">0x0</span>, x149, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1268"> <span class="tok-kw">var</span> x159: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1269"> <span class="tok-kw">var</span> x160: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1270"> subborrowxU64(&x159, &x160, x158, x151, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L1271"> <span class="tok-kw">var</span> x161: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1272"> <span class="tok-kw">var</span> x162: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1273"> subborrowxU64(&x161, &x162, x160, x153, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>));</span> <span class="line" id="L1274"> <span class="tok-kw">var</span> x163: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1275"> <span class="tok-kw">var</span> x164: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1276"> subborrowxU64(&x163, &x164, x162, x155, <span class="tok-number">0xffffffff00000001</span>);</span> <span class="line" id="L1277"> <span class="tok-kw">var</span> x165: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1278"> <span class="tok-kw">var</span> x166: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1279"> subborrowxU64(&x165, &x166, x164, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x156), <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>));</span> <span class="line" id="L1280"> <span class="tok-kw">var</span> x167: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1281"> cmovznzU64(&x167, x166, x157, x149);</span> <span class="line" id="L1282"> <span class="tok-kw">var</span> x168: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1283"> cmovznzU64(&x168, x166, x159, x151);</span> <span class="line" id="L1284"> <span class="tok-kw">var</span> x169: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1285"> cmovznzU64(&x169, x166, x161, x153);</span> <span class="line" id="L1286"> <span class="tok-kw">var</span> x170: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1287"> cmovznzU64(&x170, x166, x163, x155);</span> <span class="line" id="L1288"> out1[<span class="tok-number">0</span>] = x167;</span> <span class="line" id="L1289"> out1[<span class="tok-number">1</span>] = x168;</span> <span class="line" id="L1290"> out1[<span class="tok-number">2</span>] = x169;</span> <span class="line" id="L1291"> out1[<span class="tok-number">3</span>] = x170;</span> <span class="line" id="L1292">}</span> <span class="line" id="L1293"></span> <span class="line" id="L1294"><span class="tok-comment">/// The function nonzero outputs a single non-zero word if the input is non-zero and zero otherwise.</span></span> <span class="line" id="L1295"><span class="tok-comment">///</span></span> <span class="line" id="L1296"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L1297"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L1298"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L1299"><span class="tok-comment">/// out1 = 0 ↔ eval (from_montgomery arg1) mod m = 0</span></span> <span class="line" id="L1300"><span class="tok-comment">///</span></span> <span class="line" id="L1301"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L1302"><span class="tok-comment">/// arg1: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1303"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L1304"><span class="tok-comment">/// out1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L1305"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">nonzero</span>(out1: <span class="tok-type">u64</span>, arg1: [<span class="tok-number">4</span>]<span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L1306"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L1307"></span> <span class="line" id="L1308"> <span class="tok-kw">const</span> x1 = ((arg1[<span class="tok-number">0</span>]) \| ((arg1[<span class="tok-number">1</span>]) \| ((arg1[<span class="tok-number">2</span>]) \| (arg1[<span class="tok-number">3</span>]))));</span> <span class="line" id="L1309"> out1. = x1;</span> <span class="line" id="L1310">}</span> <span class="line" id="L1311"></span> <span class="line" id="L1312"><span class="tok-comment">/// The function selectznz is a multi-limb conditional select.</span></span> <span class="line" id="L1313"><span class="tok-comment">///</span></span> <span class="line" id="L1314"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L1315"><span class="tok-comment">/// eval out1 = (if arg1 = 0 then eval arg2 else eval arg3)</span></span> <span class="line" id="L1316"><span class="tok-comment">///</span></span> <span class="line" id="L1317"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L1318"><span class="tok-comment">/// arg1: [0x0 ~> 0x1]</span></span> <span class="line" id="L1319"><span class="tok-comment">/// arg2: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1320"><span class="tok-comment">/// arg3: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1321"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L1322"><span class="tok-comment">/// out1: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1323"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">selectznz</span>(out1: [<span class="tok-number">4</span>]<span class="tok-type">u64</span>, arg1: <span class="tok-type">u1</span>, arg2: [<span class="tok-number">4</span>]<span class="tok-type">u64</span>, arg3: [<span class="tok-number">4</span>]<span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L1324"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L1325"></span> <span class="line" id="L1326"> <span class="tok-kw">var</span> x1: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1327"> cmovznzU64(&x1, arg1, (arg2[<span class="tok-number">0</span>]), (arg3[<span class="tok-number">0</span>]));</span> <span class="line" id="L1328"> <span class="tok-kw">var</span> x2: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1329"> cmovznzU64(&x2, arg1, (arg2[<span class="tok-number">1</span>]), (arg3[<span class="tok-number">1</span>]));</span> <span class="line" id="L1330"> <span class="tok-kw">var</span> x3: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1331"> cmovznzU64(&x3, arg1, (arg2[<span class="tok-number">2</span>]), (arg3[<span class="tok-number">2</span>]));</span> <span class="line" id="L1332"> <span class="tok-kw">var</span> x4: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1333"> cmovznzU64(&x4, arg1, (arg2[<span class="tok-number">3</span>]), (arg3[<span class="tok-number">3</span>]));</span> <span class="line" id="L1334"> out1[<span class="tok-number">0</span>] = x1;</span> <span class="line" id="L1335"> out1[<span class="tok-number">1</span>] = x2;</span> <span class="line" id="L1336"> out1[<span class="tok-number">2</span>] = x3;</span> <span class="line" id="L1337"> out1[<span class="tok-number">3</span>] = x4;</span> <span class="line" id="L1338">}</span> <span class="line" id="L1339"></span> <span class="line" id="L1340"><span class="tok-comment">/// The function toBytes serializes a field element NOT in the Montgomery domain to bytes in little-endian order.</span></span> <span class="line" id="L1341"><span class="tok-comment">///</span></span> <span class="line" id="L1342"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L1343"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L1344"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L1345"><span class="tok-comment">/// out1 = map (λ x, ⌊((eval arg1 mod m) mod 2^(8 (x + 1))) / 2^(8 * x)⌋) [0..31]</span></span> <span class="line" id="L1346"><span class="tok-comment">///</span></span> <span class="line" id="L1347"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L1348"><span class="tok-comment">/// arg1: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1349"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L1350"><span class="tok-comment">/// out1: [[0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff]]</span></span> <span class="line" id="L1351"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toBytes</span>(out1: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>, arg1: [<span class="tok-number">4</span>]<span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L1352"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L1353"></span> <span class="line" id="L1354"> <span class="tok-kw">const</span> x1 = (arg1[<span class="tok-number">3</span>]);</span> <span class="line" id="L1355"> <span class="tok-kw">const</span> x2 = (arg1[<span class="tok-number">2</span>]);</span> <span class="line" id="L1356"> <span class="tok-kw">const</span> x3 = (arg1[<span class="tok-number">1</span>]);</span> <span class="line" id="L1357"> <span class="tok-kw">const</span> x4 = (arg1[<span class="tok-number">0</span>]);</span> <span class="line" id="L1358"> <span class="tok-kw">const</span> x5 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x4 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1359"> <span class="tok-kw">const</span> x6 = (x4 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1360"> <span class="tok-kw">const</span> x7 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x6 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1361"> <span class="tok-kw">const</span> x8 = (x6 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1362"> <span class="tok-kw">const</span> x9 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x8 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1363"> <span class="tok-kw">const</span> x10 = (x8 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1364"> <span class="tok-kw">const</span> x11 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x10 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1365"> <span class="tok-kw">const</span> x12 = (x10 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1366"> <span class="tok-kw">const</span> x13 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x12 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1367"> <span class="tok-kw">const</span> x14 = (x12 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1368"> <span class="tok-kw">const</span> x15 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x14 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1369"> <span class="tok-kw">const</span> x16 = (x14 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1370"> <span class="tok-kw">const</span> x17 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x16 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1371"> <span class="tok-kw">const</span> x18 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x16 >> <span class="tok-number">8</span>)));</span> <span class="line" id="L1372"> <span class="tok-kw">const</span> x19 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x3 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1373"> <span class="tok-kw">const</span> x20 = (x3 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1374"> <span class="tok-kw">const</span> x21 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x20 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1375"> <span class="tok-kw">const</span> x22 = (x20 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1376"> <span class="tok-kw">const</span> x23 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x22 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1377"> <span class="tok-kw">const</span> x24 = (x22 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1378"> <span class="tok-kw">const</span> x25 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x24 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1379"> <span class="tok-kw">const</span> x26 = (x24 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1380"> <span class="tok-kw">const</span> x27 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x26 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1381"> <span class="tok-kw">const</span> x28 = (x26 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1382"> <span class="tok-kw">const</span> x29 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x28 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1383"> <span class="tok-kw">const</span> x30 = (x28 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1384"> <span class="tok-kw">const</span> x31 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x30 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1385"> <span class="tok-kw">const</span> x32 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x30 >> <span class="tok-number">8</span>)));</span> <span class="line" id="L1386"> <span class="tok-kw">const</span> x33 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x2 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1387"> <span class="tok-kw">const</span> x34 = (x2 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1388"> <span class="tok-kw">const</span> x35 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x34 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1389"> <span class="tok-kw">const</span> x36 = (x34 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1390"> <span class="tok-kw">const</span> x37 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x36 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1391"> <span class="tok-kw">const</span> x38 = (x36 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1392"> <span class="tok-kw">const</span> x39 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x38 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1393"> <span class="tok-kw">const</span> x40 = (x38 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1394"> <span class="tok-kw">const</span> x41 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x40 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1395"> <span class="tok-kw">const</span> x42 = (x40 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1396"> <span class="tok-kw">const</span> x43 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x42 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1397"> <span class="tok-kw">const</span> x44 = (x42 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1398"> <span class="tok-kw">const</span> x45 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x44 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1399"> <span class="tok-kw">const</span> x46 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x44 >> <span class="tok-number">8</span>)));</span> <span class="line" id="L1400"> <span class="tok-kw">const</span> x47 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x1 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1401"> <span class="tok-kw">const</span> x48 = (x1 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1402"> <span class="tok-kw">const</span> x49 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x48 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1403"> <span class="tok-kw">const</span> x50 = (x48 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1404"> <span class="tok-kw">const</span> x51 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x50 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1405"> <span class="tok-kw">const</span> x52 = (x50 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1406"> <span class="tok-kw">const</span> x53 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x52 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1407"> <span class="tok-kw">const</span> x54 = (x52 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1408"> <span class="tok-kw">const</span> x55 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x54 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1409"> <span class="tok-kw">const</span> x56 = (x54 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1410"> <span class="tok-kw">const</span> x57 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x56 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1411"> <span class="tok-kw">const</span> x58 = (x56 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1412"> <span class="tok-kw">const</span> x59 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x58 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1413"> <span class="tok-kw">const</span> x60 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x58 >> <span class="tok-number">8</span>)));</span> <span class="line" id="L1414"> out1[<span class="tok-number">0</span>] = x5;</span> <span class="line" id="L1415"> out1[<span class="tok-number">1</span>] = x7;</span> <span class="line" id="L1416"> out1[<span class="tok-number">2</span>] = x9;</span> <span class="line" id="L1417"> out1[<span class="tok-number">3</span>] = x11;</span> <span class="line" id="L1418"> out1[<span class="tok-number">4</span>] = x13;</span> <span class="line" id="L1419"> out1[<span class="tok-number">5</span>] = x15;</span> <span class="line" id="L1420"> out1[<span class="tok-number">6</span>] = x17;</span> <span class="line" id="L1421"> out1[<span class="tok-number">7</span>] = x18;</span> <span class="line" id="L1422"> out1[<span class="tok-number">8</span>] = x19;</span> <span class="line" id="L1423"> out1[<span class="tok-number">9</span>] = x21;</span> <span class="line" id="L1424"> out1[<span class="tok-number">10</span>] = x23;</span> <span class="line" id="L1425"> out1[<span class="tok-number">11</span>] = x25;</span> <span class="line" id="L1426"> out1[<span class="tok-number">12</span>] = x27;</span> <span class="line" id="L1427"> out1[<span class="tok-number">13</span>] = x29;</span> <span class="line" id="L1428"> out1[<span class="tok-number">14</span>] = x31;</span> <span class="line" id="L1429"> out1[<span class="tok-number">15</span>] = x32;</span> <span class="line" id="L1430"> out1[<span class="tok-number">16</span>] = x33;</span> <span class="line" id="L1431"> out1[<span class="tok-number">17</span>] = x35;</span> <span class="line" id="L1432"> out1[<span class="tok-number">18</span>] = x37;</span> <span class="line" id="L1433"> out1[<span class="tok-number">19</span>] = x39;</span> <span class="line" id="L1434"> out1[<span class="tok-number">20</span>] = x41;</span> <span class="line" id="L1435"> out1[<span class="tok-number">21</span>] = x43;</span> <span class="line" id="L1436"> out1[<span class="tok-number">22</span>] = x45;</span> <span class="line" id="L1437"> out1[<span class="tok-number">23</span>] = x46;</span> <span class="line" id="L1438"> out1[<span class="tok-number">24</span>] = x47;</span> <span class="line" id="L1439"> out1[<span class="tok-number">25</span>] = x49;</span> <span class="line" id="L1440"> out1[<span class="tok-number">26</span>] = x51;</span> <span class="line" id="L1441"> out1[<span class="tok-number">27</span>] = x53;</span> <span class="line" id="L1442"> out1[<span class="tok-number">28</span>] = x55;</span> <span class="line" id="L1443"> out1[<span class="tok-number">29</span>] = x57;</span> <span class="line" id="L1444"> out1[<span class="tok-number">30</span>] = x59;</span> <span class="line" id="L1445"> out1[<span class="tok-number">31</span>] = x60;</span> <span class="line" id="L1446">}</span> <span class="line" id="L1447"></span> <span class="line" id="L1448"><span class="tok-comment">/// The function fromBytes deserializes a field element NOT in the Montgomery domain from bytes in little-endian order.</span></span> <span class="line" id="L1449"><span class="tok-comment">///</span></span> <span class="line" id="L1450"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L1451"><span class="tok-comment">/// 0 ≤ bytes_eval arg1 < m</span></span> <span class="line" id="L1452"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L1453"><span class="tok-comment">/// eval out1 mod m = bytes_eval arg1 mod m</span></span> <span class="line" id="L1454"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L1455"><span class="tok-comment">///</span></span> <span class="line" id="L1456"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L1457"><span class="tok-comment">/// arg1: [[0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff]]</span></span> <span class="line" id="L1458"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L1459"><span class="tok-comment">/// out1: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1460"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromBytes</span>(out1: [<span class="tok-number">4</span>]<span class="tok-type">u64</span>, arg1: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L1461"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L1462"></span> <span class="line" id="L1463"> <span class="tok-kw">const</span> x1 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">31</span>])) << <span class="tok-number">56</span>);</span> <span class="line" id="L1464"> <span class="tok-kw">const</span> x2 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">30</span>])) << <span class="tok-number">48</span>);</span> <span class="line" id="L1465"> <span class="tok-kw">const</span> x3 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">29</span>])) << <span class="tok-number">40</span>);</span> <span class="line" id="L1466"> <span class="tok-kw">const</span> x4 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">28</span>])) << <span class="tok-number">32</span>);</span> <span class="line" id="L1467"> <span class="tok-kw">const</span> x5 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">27</span>])) << <span class="tok-number">24</span>);</span> <span class="line" id="L1468"> <span class="tok-kw">const</span> x6 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">26</span>])) << <span class="tok-number">16</span>);</span> <span class="line" id="L1469"> <span class="tok-kw">const</span> x7 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">25</span>])) << <span class="tok-number">8</span>);</span> <span class="line" id="L1470"> <span class="tok-kw">const</span> x8 = (arg1[<span class="tok-number">24</span>]);</span> <span class="line" id="L1471"> <span class="tok-kw">const</span> x9 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">23</span>])) << <span class="tok-number">56</span>);</span> <span class="line" id="L1472"> <span class="tok-kw">const</span> x10 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">22</span>])) << <span class="tok-number">48</span>);</span> <span class="line" id="L1473"> <span class="tok-kw">const</span> x11 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">21</span>])) << <span class="tok-number">40</span>);</span> <span class="line" id="L1474"> <span class="tok-kw">const</span> x12 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">20</span>])) << <span class="tok-number">32</span>);</span> <span class="line" id="L1475"> <span class="tok-kw">const</span> x13 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">19</span>])) << <span class="tok-number">24</span>);</span> <span class="line" id="L1476"> <span class="tok-kw">const</span> x14 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">18</span>])) << <span class="tok-number">16</span>);</span> <span class="line" id="L1477"> <span class="tok-kw">const</span> x15 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">17</span>])) << <span class="tok-number">8</span>);</span> <span class="line" id="L1478"> <span class="tok-kw">const</span> x16 = (arg1[<span class="tok-number">16</span>]);</span> <span class="line" id="L1479"> <span class="tok-kw">const</span> x17 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">15</span>])) << <span class="tok-number">56</span>);</span> <span class="line" id="L1480"> <span class="tok-kw">const</span> x18 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">14</span>])) << <span class="tok-number">48</span>);</span> <span class="line" id="L1481"> <span class="tok-kw">const</span> x19 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">13</span>])) << <span class="tok-number">40</span>);</span> <span class="line" id="L1482"> <span class="tok-kw">const</span> x20 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">12</span>])) << <span class="tok-number">32</span>);</span> <span class="line" id="L1483"> <span class="tok-kw">const</span> x21 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">11</span>])) << <span class="tok-number">24</span>);</span> <span class="line" id="L1484"> <span class="tok-kw">const</span> x22 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">10</span>])) << <span class="tok-number">16</span>);</span> <span class="line" id="L1485"> <span class="tok-kw">const</span> x23 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">9</span>])) << <span class="tok-number">8</span>);</span> <span class="line" id="L1486"> <span class="tok-kw">const</span> x24 = (arg1[<span class="tok-number">8</span>]);</span> <span class="line" id="L1487"> <span class="tok-kw">const</span> x25 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">7</span>])) << <span class="tok-number">56</span>);</span> <span class="line" id="L1488"> <span class="tok-kw">const</span> x26 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">6</span>])) << <span class="tok-number">48</span>);</span> <span class="line" id="L1489"> <span class="tok-kw">const</span> x27 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">5</span>])) << <span class="tok-number">40</span>);</span> <span class="line" id="L1490"> <span class="tok-kw">const</span> x28 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">4</span>])) << <span class="tok-number">32</span>);</span> <span class="line" id="L1491"> <span class="tok-kw">const</span> x29 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">3</span>])) << <span class="tok-number">24</span>);</span> <span class="line" id="L1492"> <span class="tok-kw">const</span> x30 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">2</span>])) << <span class="tok-number">16</span>);</span> <span class="line" id="L1493"> <span class="tok-kw">const</span> x31 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">1</span>])) << <span class="tok-number">8</span>);</span> <span class="line" id="L1494"> <span class="tok-kw">const</span> x32 = (arg1[<span class="tok-number">0</span>]);</span> <span class="line" id="L1495"> <span class="tok-kw">const</span> x33 = (x31 + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x32));</span> <span class="line" id="L1496"> <span class="tok-kw">const</span> x34 = (x30 + x33);</span> <span class="line" id="L1497"> <span class="tok-kw">const</span> x35 = (x29 + x34);</span> <span class="line" id="L1498"> <span class="tok-kw">const</span> x36 = (x28 + x35);</span> <span class="line" id="L1499"> <span class="tok-kw">const</span> x37 = (x27 + x36);</span> <span class="line" id="L1500"> <span class="tok-kw">const</span> x38 = (x26 + x37);</span> <span class="line" id="L1501"> <span class="tok-kw">const</span> x39 = (x25 + x38);</span> <span class="line" id="L1502"> <span class="tok-kw">const</span> x40 = (x23 + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x24));</span> <span class="line" id="L1503"> <span class="tok-kw">const</span> x41 = (x22 + x40);</span> <span class="line" id="L1504"> <span class="tok-kw">const</span> x42 = (x21 + x41);</span> <span class="line" id="L1505"> <span class="tok-kw">const</span> x43 = (x20 + x42);</span> <span class="line" id="L1506"> <span class="tok-kw">const</span> x44 = (x19 + x43);</span> <span class="line" id="L1507"> <span class="tok-kw">const</span> x45 = (x18 + x44);</span> <span class="line" id="L1508"> <span class="tok-kw">const</span> x46 = (x17 + x45);</span> <span class="line" id="L1509"> <span class="tok-kw">const</span> x47 = (x15 + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x16));</span> <span class="line" id="L1510"> <span class="tok-kw">const</span> x48 = (x14 + x47);</span> <span class="line" id="L1511"> <span class="tok-kw">const</span> x49 = (x13 + x48);</span> <span class="line" id="L1512"> <span class="tok-kw">const</span> x50 = (x12 + x49);</span> <span class="line" id="L1513"> <span class="tok-kw">const</span> x51 = (x11 + x50);</span> <span class="line" id="L1514"> <span class="tok-kw">const</span> x52 = (x10 + x51);</span> <span class="line" id="L1515"> <span class="tok-kw">const</span> x53 = (x9 + x52);</span> <span class="line" id="L1516"> <span class="tok-kw">const</span> x54 = (x7 + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x8));</span> <span class="line" id="L1517"> <span class="tok-kw">const</span> x55 = (x6 + x54);</span> <span class="line" id="L1518"> <span class="tok-kw">const</span> x56 = (x5 + x55);</span> <span class="line" id="L1519"> <span class="tok-kw">const</span> x57 = (x4 + x56);</span> <span class="line" id="L1520"> <span class="tok-kw">const</span> x58 = (x3 + x57);</span> <span class="line" id="L1521"> <span class="tok-kw">const</span> x59 = (x2 + x58);</span> <span class="line" id="L1522"> <span class="tok-kw">const</span> x60 = (x1 + x59);</span> <span class="line" id="L1523"> out1[<span class="tok-number">0</span>] = x39;</span> <span class="line" id="L1524"> out1[<span class="tok-number">1</span>] = x46;</span> <span class="line" id="L1525"> out1[<span class="tok-number">2</span>] = x53;</span> <span class="line" id="L1526"> out1[<span class="tok-number">3</span>] = x60;</span> <span class="line" id="L1527">}</span> <span class="line" id="L1528"></span> <span class="line" id="L1529"><span class="tok-comment">/// The function setOne returns the field element one in the Montgomery domain.</span></span> <span class="line" id="L1530"><span class="tok-comment">///</span></span> <span class="line" id="L1531"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L1532"><span class="tok-comment">/// eval (from_montgomery out1) mod m = 1 mod m</span></span> <span class="line" id="L1533"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L1534"><span class="tok-comment">///</span></span> <span class="line" id="L1535"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">setOne</span>(out1: MontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L1536"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L1537"></span> <span class="line" id="L1538"> out1[<span class="tok-number">0</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x1</span>);</span> <span class="line" id="L1539"> out1[<span class="tok-number">1</span>] = <span class="tok-number">0xffffffff00000000</span>;</span> <span class="line" id="L1540"> out1[<span class="tok-number">2</span>] = <span class="tok-number">0xffffffffffffffff</span>;</span> <span class="line" id="L1541"> out1[<span class="tok-number">3</span>] = <span class="tok-number">0xfffffffe</span>;</span> <span class="line" id="L1542">}</span> <span class="line" id="L1543"></span> <span class="line" id="L1544"><span class="tok-comment">/// The function msat returns the saturated representation of the prime modulus.</span></span> <span class="line" id="L1545"><span class="tok-comment">///</span></span> <span class="line" id="L1546"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L1547"><span class="tok-comment">/// twos_complement_eval out1 = m</span></span> <span class="line" id="L1548"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L1549"><span class="tok-comment">///</span></span> <span class="line" id="L1550"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L1551"><span class="tok-comment">/// out1: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1552"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">msat</span>(out1: [<span class="tok-number">5</span>]<span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L1553"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L1554"></span> <span class="line" id="L1555"> out1[<span class="tok-number">0</span>] = <span class="tok-number">0xffffffffffffffff</span>;</span> <span class="line" id="L1556"> out1[<span class="tok-number">1</span>] = <span class="tok-number">0xffffffff</span>;</span> <span class="line" id="L1557"> out1[<span class="tok-number">2</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1558"> out1[<span class="tok-number">3</span>] = <span class="tok-number">0xffffffff00000001</span>;</span> <span class="line" id="L1559"> out1[<span class="tok-number">4</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1560">}</span> <span class="line" id="L1561"></span> <span class="line" id="L1562"><span class="tok-comment">/// The function divstep computes a divstep.</span></span> <span class="line" id="L1563"><span class="tok-comment">///</span></span> <span class="line" id="L1564"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L1565"><span class="tok-comment">/// 0 ≤ eval arg4 < m</span></span> <span class="line" id="L1566"><span class="tok-comment">/// 0 ≤ eval arg5 < m</span></span> <span class="line" id="L1567"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L1568"><span class="tok-comment">/// out1 = (if 0 < arg1 ∧ (twos_complement_eval arg3) is odd then 1 - arg1 else 1 + arg1)</span></span> <span class="line" id="L1569"><span class="tok-comment">/// twos_complement_eval out2 = (if 0 < arg1 ∧ (twos_complement_eval arg3) is odd then twos_complement_eval arg3 else twos_complement_eval arg2)</span></span> <span class="line" id="L1570"><span class="tok-comment">/// twos_complement_eval out3 = (if 0 < arg1 ∧ (twos_complement_eval arg3) is odd then ⌊(twos_complement_eval arg3 - twos_complement_eval arg2) / 2⌋ else ⌊(twos_complement_eval arg3 + (twos_complement_eval arg3 mod 2) * twos_complement_eval arg2) / 2⌋)</span></span> <span class="line" id="L1571"><span class="tok-comment">/// eval (from_montgomery out4) mod m = (if 0 < arg1 ∧ (twos_complement_eval arg3) is odd then (2 * eval (from_montgomery arg5)) mod m else (2 * eval (from_montgomery arg4)) mod m)</span></span> <span class="line" id="L1572"><span class="tok-comment">/// eval (from_montgomery out5) mod m = (if 0 < arg1 ∧ (twos_complement_eval arg3) is odd then (eval (from_montgomery arg4) - eval (from_montgomery arg4)) mod m else (eval (from_montgomery arg5) + (twos_complement_eval arg3 mod 2) * eval (from_montgomery arg4)) mod m)</span></span> <span class="line" id="L1573"><span class="tok-comment">/// 0 ≤ eval out5 < m</span></span> <span class="line" id="L1574"><span class="tok-comment">/// 0 ≤ eval out5 < m</span></span> <span class="line" id="L1575"><span class="tok-comment">/// 0 ≤ eval out2 < m</span></span> <span class="line" id="L1576"><span class="tok-comment">/// 0 ≤ eval out3 < m</span></span> <span class="line" id="L1577"><span class="tok-comment">///</span></span> <span class="line" id="L1578"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L1579"><span class="tok-comment">/// arg1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L1580"><span class="tok-comment">/// arg2: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1581"><span class="tok-comment">/// arg3: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1582"><span class="tok-comment">/// arg4: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1583"><span class="tok-comment">/// arg5: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1584"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L1585"><span class="tok-comment">/// out1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L1586"><span class="tok-comment">/// out2: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1587"><span class="tok-comment">/// out3: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1588"><span class="tok-comment">/// out4: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1589"><span class="tok-comment">/// out5: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1590"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">divstep</span>(out1: <span class="tok-type">u64</span>, out2: [<span class="tok-number">5</span>]<span class="tok-type">u64</span>, out3: [<span class="tok-number">5</span>]<span class="tok-type">u64</span>, out4: [<span class="tok-number">4</span>]<span class="tok-type">u64</span>, out5: [<span class="tok-number">4</span>]<span class="tok-type">u64</span>, arg1: <span class="tok-type">u64</span>, arg2: [<span class="tok-number">5</span>]<span class="tok-type">u64</span>, arg3: [<span class="tok-number">5</span>]<span class="tok-type">u64</span>, arg4: [<span class="tok-number">4</span>]<span class="tok-type">u64</span>, arg5: [<span class="tok-number">4</span>]<span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L1591"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L1592"></span> <span class="line" id="L1593"> <span class="tok-kw">var</span> x1: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1594"> <span class="tok-kw">var</span> x2: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1595"> addcarryxU64(&x1, &x2, <span class="tok-number">0x0</span>, (~arg1), <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x1</span>));</span> <span class="line" id="L1596"> <span class="tok-kw">const</span> x3 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u1</span>, <span class="tok-builtin">@truncate</span>((x1 >> <span class="tok-number">63</span>))) & <span class="tok-builtin">@as</span>(<span class="tok-type">u1</span>, <span class="tok-builtin">@truncate</span>(((arg3[<span class="tok-number">0</span>]) & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x1</span>)))));</span> <span class="line" id="L1597"> <span class="tok-kw">var</span> x4: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1598"> <span class="tok-kw">var</span> x5: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1599"> addcarryxU64(&x4, &x5, <span class="tok-number">0x0</span>, (~arg1), <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x1</span>));</span> <span class="line" id="L1600"> <span class="tok-kw">var</span> x6: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1601"> cmovznzU64(&x6, x3, arg1, x4);</span> <span class="line" id="L1602"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1603"> cmovznzU64(&x7, x3, (arg2[<span class="tok-number">0</span>]), (arg3[<span class="tok-number">0</span>]));</span> <span class="line" id="L1604"> <span class="tok-kw">var</span> x8: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1605"> cmovznzU64(&x8, x3, (arg2[<span class="tok-number">1</span>]), (arg3[<span class="tok-number">1</span>]));</span> <span class="line" id="L1606"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1607"> cmovznzU64(&x9, x3, (arg2[<span class="tok-number">2</span>]), (arg3[<span class="tok-number">2</span>]));</span> <span class="line" id="L1608"> <span class="tok-kw">var</span> x10: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1609"> cmovznzU64(&x10, x3, (arg2[<span class="tok-number">3</span>]), (arg3[<span class="tok-number">3</span>]));</span> <span class="line" id="L1610"> <span class="tok-kw">var</span> x11: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1611"> cmovznzU64(&x11, x3, (arg2[<span class="tok-number">4</span>]), (arg3[<span class="tok-number">4</span>]));</span> <span class="line" id="L1612"> <span class="tok-kw">var</span> x12: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1613"> <span class="tok-kw">var</span> x13: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1614"> addcarryxU64(&x12, &x13, <span class="tok-number">0x0</span>, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x1</span>), (~(arg2[<span class="tok-number">0</span>])));</span> <span class="line" id="L1615"> <span class="tok-kw">var</span> x14: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1616"> <span class="tok-kw">var</span> x15: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1617"> addcarryxU64(&x14, &x15, x13, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), (~(arg2[<span class="tok-number">1</span>])));</span> <span class="line" id="L1618"> <span class="tok-kw">var</span> x16: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1619"> <span class="tok-kw">var</span> x17: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1620"> addcarryxU64(&x16, &x17, x15, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), (~(arg2[<span class="tok-number">2</span>])));</span> <span class="line" id="L1621"> <span class="tok-kw">var</span> x18: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1622"> <span class="tok-kw">var</span> x19: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1623"> addcarryxU64(&x18, &x19, x17, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), (~(arg2[<span class="tok-number">3</span>])));</span> <span class="line" id="L1624"> <span class="tok-kw">var</span> x20: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1625"> <span class="tok-kw">var</span> x21: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1626"> addcarryxU64(&x20, &x21, x19, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), (~(arg2[<span class="tok-number">4</span>])));</span> <span class="line" id="L1627"> <span class="tok-kw">var</span> x22: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1628"> cmovznzU64(&x22, x3, (arg3[<span class="tok-number">0</span>]), x12);</span> <span class="line" id="L1629"> <span class="tok-kw">var</span> x23: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1630"> cmovznzU64(&x23, x3, (arg3[<span class="tok-number">1</span>]), x14);</span> <span class="line" id="L1631"> <span class="tok-kw">var</span> x24: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1632"> cmovznzU64(&x24, x3, (arg3[<span class="tok-number">2</span>]), x16);</span> <span class="line" id="L1633"> <span class="tok-kw">var</span> x25: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1634"> cmovznzU64(&x25, x3, (arg3[<span class="tok-number">3</span>]), x18);</span> <span class="line" id="L1635"> <span class="tok-kw">var</span> x26: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1636"> cmovznzU64(&x26, x3, (arg3[<span class="tok-number">4</span>]), x20);</span> <span class="line" id="L1637"> <span class="tok-kw">var</span> x27: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1638"> cmovznzU64(&x27, x3, (arg4[<span class="tok-number">0</span>]), (arg5[<span class="tok-number">0</span>]));</span> <span class="line" id="L1639"> <span class="tok-kw">var</span> x28: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1640"> cmovznzU64(&x28, x3, (arg4[<span class="tok-number">1</span>]), (arg5[<span class="tok-number">1</span>]));</span> <span class="line" id="L1641"> <span class="tok-kw">var</span> x29: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1642"> cmovznzU64(&x29, x3, (arg4[<span class="tok-number">2</span>]), (arg5[<span class="tok-number">2</span>]));</span> <span class="line" id="L1643"> <span class="tok-kw">var</span> x30: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1644"> cmovznzU64(&x30, x3, (arg4[<span class="tok-number">3</span>]), (arg5[<span class="tok-number">3</span>]));</span> <span class="line" id="L1645"> <span class="tok-kw">var</span> x31: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1646"> <span class="tok-kw">var</span> x32: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1647"> addcarryxU64(&x31, &x32, <span class="tok-number">0x0</span>, x27, x27);</span> <span class="line" id="L1648"> <span class="tok-kw">var</span> x33: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1649"> <span class="tok-kw">var</span> x34: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1650"> addcarryxU64(&x33, &x34, x32, x28, x28);</span> <span class="line" id="L1651"> <span class="tok-kw">var</span> x35: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1652"> <span class="tok-kw">var</span> x36: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1653"> addcarryxU64(&x35, &x36, x34, x29, x29);</span> <span class="line" id="L1654"> <span class="tok-kw">var</span> x37: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1655"> <span class="tok-kw">var</span> x38: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1656"> addcarryxU64(&x37, &x38, x36, x30, x30);</span> <span class="line" id="L1657"> <span class="tok-kw">var</span> x39: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1658"> <span class="tok-kw">var</span> x40: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1659"> subborrowxU64(&x39, &x40, <span class="tok-number">0x0</span>, x31, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1660"> <span class="tok-kw">var</span> x41: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1661"> <span class="tok-kw">var</span> x42: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1662"> subborrowxU64(&x41, &x42, x40, x33, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L1663"> <span class="tok-kw">var</span> x43: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1664"> <span class="tok-kw">var</span> x44: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1665"> subborrowxU64(&x43, &x44, x42, x35, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>));</span> <span class="line" id="L1666"> <span class="tok-kw">var</span> x45: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1667"> <span class="tok-kw">var</span> x46: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1668"> subborrowxU64(&x45, &x46, x44, x37, <span class="tok-number">0xffffffff00000001</span>);</span> <span class="line" id="L1669"> <span class="tok-kw">var</span> x47: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1670"> <span class="tok-kw">var</span> x48: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1671"> subborrowxU64(&x47, &x48, x46, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x38), <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>));</span> <span class="line" id="L1672"> <span class="tok-kw">const</span> x49 = (arg4[<span class="tok-number">3</span>]);</span> <span class="line" id="L1673"> <span class="tok-kw">const</span> x50 = (arg4[<span class="tok-number">2</span>]);</span> <span class="line" id="L1674"> <span class="tok-kw">const</span> x51 = (arg4[<span class="tok-number">1</span>]);</span> <span class="line" id="L1675"> <span class="tok-kw">const</span> x52 = (arg4[<span class="tok-number">0</span>]);</span> <span class="line" id="L1676"> <span class="tok-kw">var</span> x53: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1677"> <span class="tok-kw">var</span> x54: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1678"> subborrowxU64(&x53, &x54, <span class="tok-number">0x0</span>, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), x52);</span> <span class="line" id="L1679"> <span class="tok-kw">var</span> x55: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1680"> <span class="tok-kw">var</span> x56: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1681"> subborrowxU64(&x55, &x56, x54, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), x51);</span> <span class="line" id="L1682"> <span class="tok-kw">var</span> x57: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1683"> <span class="tok-kw">var</span> x58: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1684"> subborrowxU64(&x57, &x58, x56, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), x50);</span> <span class="line" id="L1685"> <span class="tok-kw">var</span> x59: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1686"> <span class="tok-kw">var</span> x60: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1687"> subborrowxU64(&x59, &x60, x58, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), x49);</span> <span class="line" id="L1688"> <span class="tok-kw">var</span> x61: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1689"> cmovznzU64(&x61, x60, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1690"> <span class="tok-kw">var</span> x62: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1691"> <span class="tok-kw">var</span> x63: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1692"> addcarryxU64(&x62, &x63, <span class="tok-number">0x0</span>, x53, x61);</span> <span class="line" id="L1693"> <span class="tok-kw">var</span> x64: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1694"> <span class="tok-kw">var</span> x65: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1695"> addcarryxU64(&x64, &x65, x63, x55, (x61 & <span class="tok-number">0xffffffff</span>));</span> <span class="line" id="L1696"> <span class="tok-kw">var</span> x66: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1697"> <span class="tok-kw">var</span> x67: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1698"> addcarryxU64(&x66, &x67, x65, x57, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>));</span> <span class="line" id="L1699"> <span class="tok-kw">var</span> x68: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1700"> <span class="tok-kw">var</span> x69: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1701"> addcarryxU64(&x68, &x69, x67, x59, (x61 & <span class="tok-number">0xffffffff00000001</span>));</span> <span class="line" id="L1702"> <span class="tok-kw">var</span> x70: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1703"> cmovznzU64(&x70, x3, (arg5[<span class="tok-number">0</span>]), x62);</span> <span class="line" id="L1704"> <span class="tok-kw">var</span> x71: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1705"> cmovznzU64(&x71, x3, (arg5[<span class="tok-number">1</span>]), x64);</span> <span class="line" id="L1706"> <span class="tok-kw">var</span> x72: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1707"> cmovznzU64(&x72, x3, (arg5[<span class="tok-number">2</span>]), x66);</span> <span class="line" id="L1708"> <span class="tok-kw">var</span> x73: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1709"> cmovznzU64(&x73, x3, (arg5[<span class="tok-number">3</span>]), x68);</span> <span class="line" id="L1710"> <span class="tok-kw">const</span> x74 = <span class="tok-builtin">@as</span>(<span class="tok-type">u1</span>, <span class="tok-builtin">@truncate</span>((x22 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x1</span>))));</span> <span class="line" id="L1711"> <span class="tok-kw">var</span> x75: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1712"> cmovznzU64(&x75, x74, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), x7);</span> <span class="line" id="L1713"> <span class="tok-kw">var</span> x76: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1714"> cmovznzU64(&x76, x74, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), x8);</span> <span class="line" id="L1715"> <span class="tok-kw">var</span> x77: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1716"> cmovznzU64(&x77, x74, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), x9);</span> <span class="line" id="L1717"> <span class="tok-kw">var</span> x78: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1718"> cmovznzU64(&x78, x74, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), x10);</span> <span class="line" id="L1719"> <span class="tok-kw">var</span> x79: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1720"> cmovznzU64(&x79, x74, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), x11);</span> <span class="line" id="L1721"> <span class="tok-kw">var</span> x80: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1722"> <span class="tok-kw">var</span> x81: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1723"> addcarryxU64(&x80, &x81, <span class="tok-number">0x0</span>, x22, x75);</span> <span class="line" id="L1724"> <span class="tok-kw">var</span> x82: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1725"> <span class="tok-kw">var</span> x83: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1726"> addcarryxU64(&x82, &x83, x81, x23, x76);</span> <span class="line" id="L1727"> <span class="tok-kw">var</span> x84: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1728"> <span class="tok-kw">var</span> x85: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1729"> addcarryxU64(&x84, &x85, x83, x24, x77);</span> <span class="line" id="L1730"> <span class="tok-kw">var</span> x86: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1731"> <span class="tok-kw">var</span> x87: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1732"> addcarryxU64(&x86, &x87, x85, x25, x78);</span> <span class="line" id="L1733"> <span class="tok-kw">var</span> x88: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1734"> <span class="tok-kw">var</span> x89: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1735"> addcarryxU64(&x88, &x89, x87, x26, x79);</span> <span class="line" id="L1736"> <span class="tok-kw">var</span> x90: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1737"> cmovznzU64(&x90, x74, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), x27);</span> <span class="line" id="L1738"> <span class="tok-kw">var</span> x91: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1739"> cmovznzU64(&x91, x74, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), x28);</span> <span class="line" id="L1740"> <span class="tok-kw">var</span> x92: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1741"> cmovznzU64(&x92, x74, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), x29);</span> <span class="line" id="L1742"> <span class="tok-kw">var</span> x93: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1743"> cmovznzU64(&x93, x74, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), x30);</span> <span class="line" id="L1744"> <span class="tok-kw">var</span> x94: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1745"> <span class="tok-kw">var</span> x95: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1746"> addcarryxU64(&x94, &x95, <span class="tok-number">0x0</span>, x70, x90);</span> <span class="line" id="L1747"> <span class="tok-kw">var</span> x96: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1748"> <span class="tok-kw">var</span> x97: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1749"> addcarryxU64(&x96, &x97, x95, x71, x91);</span> <span class="line" id="L1750"> <span class="tok-kw">var</span> x98: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1751"> <span class="tok-kw">var</span> x99: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1752"> addcarryxU64(&x98, &x99, x97, x72, x92);</span> <span class="line" id="L1753"> <span class="tok-kw">var</span> x100: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1754"> <span class="tok-kw">var</span> x101: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1755"> addcarryxU64(&x100, &x101, x99, x73, x93);</span> <span class="line" id="L1756"> <span class="tok-kw">var</span> x102: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1757"> <span class="tok-kw">var</span> x103: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1758"> subborrowxU64(&x102, &x103, <span class="tok-number">0x0</span>, x94, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1759"> <span class="tok-kw">var</span> x104: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1760"> <span class="tok-kw">var</span> x105: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1761"> subborrowxU64(&x104, &x105, x103, x96, <span class="tok-number">0xffffffff</span>);</span> <span class="line" id="L1762"> <span class="tok-kw">var</span> x106: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1763"> <span class="tok-kw">var</span> x107: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1764"> subborrowxU64(&x106, &x107, x105, x98, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>));</span> <span class="line" id="L1765"> <span class="tok-kw">var</span> x108: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1766"> <span class="tok-kw">var</span> x109: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1767"> subborrowxU64(&x108, &x109, x107, x100, <span class="tok-number">0xffffffff00000001</span>);</span> <span class="line" id="L1768"> <span class="tok-kw">var</span> x110: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1769"> <span class="tok-kw">var</span> x111: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1770"> subborrowxU64(&x110, &x111, x109, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x101), <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>));</span> <span class="line" id="L1771"> <span class="tok-kw">var</span> x112: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1772"> <span class="tok-kw">var</span> x113: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1773"> addcarryxU64(&x112, &x113, <span class="tok-number">0x0</span>, x6, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x1</span>));</span> <span class="line" id="L1774"> <span class="tok-kw">const</span> x114 = ((x80 >> <span class="tok-number">1</span>) \| ((x82 << <span class="tok-number">63</span>) & <span class="tok-number">0xffffffffffffffff</span>));</span> <span class="line" id="L1775"> <span class="tok-kw">const</span> x115 = ((x82 >> <span class="tok-number">1</span>) \| ((x84 << <span class="tok-number">63</span>) & <span class="tok-number">0xffffffffffffffff</span>));</span> <span class="line" id="L1776"> <span class="tok-kw">const</span> x116 = ((x84 >> <span class="tok-number">1</span>) \| ((x86 << <span class="tok-number">63</span>) & <span class="tok-number">0xffffffffffffffff</span>));</span> <span class="line" id="L1777"> <span class="tok-kw">const</span> x117 = ((x86 >> <span class="tok-number">1</span>) \| ((x88 << <span class="tok-number">63</span>) & <span class="tok-number">0xffffffffffffffff</span>));</span> <span class="line" id="L1778"> <span class="tok-kw">const</span> x118 = ((x88 & <span class="tok-number">0x8000000000000000</span>) \| (x88 >> <span class="tok-number">1</span>));</span> <span class="line" id="L1779"> <span class="tok-kw">var</span> x119: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1780"> cmovznzU64(&x119, x48, x39, x31);</span> <span class="line" id="L1781"> <span class="tok-kw">var</span> x120: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1782"> cmovznzU64(&x120, x48, x41, x33);</span> <span class="line" id="L1783"> <span class="tok-kw">var</span> x121: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1784"> cmovznzU64(&x121, x48, x43, x35);</span> <span class="line" id="L1785"> <span class="tok-kw">var</span> x122: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1786"> cmovznzU64(&x122, x48, x45, x37);</span> <span class="line" id="L1787"> <span class="tok-kw">var</span> x123: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1788"> cmovznzU64(&x123, x111, x102, x94);</span> <span class="line" id="L1789"> <span class="tok-kw">var</span> x124: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1790"> cmovznzU64(&x124, x111, x104, x96);</span> <span class="line" id="L1791"> <span class="tok-kw">var</span> x125: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1792"> cmovznzU64(&x125, x111, x106, x98);</span> <span class="line" id="L1793"> <span class="tok-kw">var</span> x126: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1794"> cmovznzU64(&x126, x111, x108, x100);</span> <span class="line" id="L1795"> out1. = x112;</span> <span class="line" id="L1796"> out2[<span class="tok-number">0</span>] = x7;</span> <span class="line" id="L1797"> out2[<span class="tok-number">1</span>] = x8;</span> <span class="line" id="L1798"> out2[<span class="tok-number">2</span>] = x9;</span> <span class="line" id="L1799"> out2[<span class="tok-number">3</span>] = x10;</span> <span class="line" id="L1800"> out2[<span class="tok-number">4</span>] = x11;</span> <span class="line" id="L1801"> out3[<span class="tok-number">0</span>] = x114;</span> <span class="line" id="L1802"> out3[<span class="tok-number">1</span>] = x115;</span> <span class="line" id="L1803"> out3[<span class="tok-number">2</span>] = x116;</span> <span class="line" id="L1804"> out3[<span class="tok-number">3</span>] = x117;</span> <span class="line" id="L1805"> out3[<span class="tok-number">4</span>] = x118;</span> <span class="line" id="L1806"> out4[<span class="tok-number">0</span>] = x119;</span> <span class="line" id="L1807"> out4[<span class="tok-number">1</span>] = x120;</span> <span class="line" id="L1808"> out4[<span class="tok-number">2</span>] = x121;</span> <span class="line" id="L1809"> out4[<span class="tok-number">3</span>] = x122;</span> <span class="line" id="L1810"> out5[<span class="tok-number">0</span>] = x123;</span> <span class="line" id="L1811"> out5[<span class="tok-number">1</span>] = x124;</span> <span class="line" id="L1812"> out5[<span class="tok-number">2</span>] = x125;</span> <span class="line" id="L1813"> out5[<span class="tok-number">3</span>] = x126;</span> <span class="line" id="L1814">}</span> <span class="line" id="L1815"></span> <span class="line" id="L1816"><span class="tok-comment">/// The function divstepPrecomp returns the precomputed value for Bernstein-Yang-inversion (in montgomery form).</span></span> <span class="line" id="L1817"><span class="tok-comment">///</span></span> <span class="line" id="L1818"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L1819"><span class="tok-comment">/// eval (from_montgomery out1) = ⌊(m - 1) / 2⌋^(if ⌊log2 m⌋ + 1 < 46 then ⌊(49 * (⌊log2 m⌋ + 1) + 80) / 17⌋ else ⌊(49 * (⌊log2 m⌋ + 1) + 57) / 17⌋)</span></span> <span class="line" id="L1820"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L1821"><span class="tok-comment">///</span></span> <span class="line" id="L1822"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L1823"><span class="tok-comment">/// out1: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1824"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">divstepPrecomp</span>(out1: *[<span class="tok-number">4</span>]<span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L1825"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L1826"></span> <span class="line" id="L1827"> out1[<span class="tok-number">0</span>] = <span class="tok-number">0x67ffffffb8000000</span>;</span> <span class="line" id="L1828"> out1[<span class="tok-number">1</span>] = <span class="tok-number">0xc000000038000000</span>;</span> <span class="line" id="L1829"> out1[<span class="tok-number">2</span>] = <span class="tok-number">0xd80000007fffffff</span>;</span> <span class="line" id="L1830"> out1[<span class="tok-number">3</span>] = <span class="tok-number">0x2fffffffffffffff</span>;</span> <span class="line" id="L1831">}</span> <span class="line" id="L1832"></span> </code></pre></body> </html>
repos/yazap/docs/src/std/crypto/pcurves	repos/yazap/docs/src/std/crypto/pcurves/p256/field.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/pcurves/p256/field.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> common = <span class="tok-builtin">@import</span>(<span class="tok-str">"../common.zig"</span>);</span> <span class="line" id="L3"></span> <span class="line" id="L4"><span class="tok-kw">const</span> Field = common.Field;</span> <span class="line" id="L5"></span> <span class="line" id="L6"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Fe = Field(.{</span> <span class="line" id="L7"> .fiat = <span class="tok-builtin">@import</span>(<span class="tok-str">"p256_64.zig"</span>),</span> <span class="line" id="L8"> .field_order = <span class="tok-number">115792089210356248762697446949407573530086143415290314195533631308867097853951</span>,</span> <span class="line" id="L9"> .field_bits = <span class="tok-number">256</span>,</span> <span class="line" id="L10"> .saturated_bits = <span class="tok-number">256</span>,</span> <span class="line" id="L11"> .encoded_length = <span class="tok-number">32</span>,</span> <span class="line" id="L12">});</span> <span class="line" id="L13"></span> </code></pre></body> </html>
repos/yazap/docs/src/std/crypto/pcurves	repos/yazap/docs/src/std/crypto/pcurves/p256/p256_scalar_64.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/pcurves/p256/p256_scalar_64.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-comment">// Autogenerated: 'src/ExtractionOCaml/word_by_word_montgomery' --lang Zig --internal-static --public-function-case camelCase --private-function-case camelCase --public-type-case UpperCamelCase --private-type-case UpperCamelCase --no-prefix-fiat --package-name p256-scalar '' 64 115792089210356248762697446949407573529996955224135760342422259061068512044369 mul square add sub opp from_montgomery to_montgomery nonzero selectznz to_bytes from_bytes one msat divstep divstep_precomp</span> </span> <span class="line" id="L2"><span class="tok-comment">// curve description (via package name): p256-scalar</span> </span> <span class="line" id="L3"><span class="tok-comment">// machine_wordsize = 64 (from "64")</span> </span> <span class="line" id="L4"><span class="tok-comment">// requested operations: mul, square, add, sub, opp, from_montgomery, to_montgomery, nonzero, selectznz, to_bytes, from_bytes, one, msat, divstep, divstep_precomp</span> </span> <span class="line" id="L5"><span class="tok-comment">// m = 0xffffffff00000000ffffffffffffffffbce6faada7179e84f3b9cac2fc632551 (from "115792089210356248762697446949407573529996955224135760342422259061068512044369")</span> </span> <span class="line" id="L6"><span class="tok-comment">//</span> </span> <span class="line" id="L7"><span class="tok-comment">// NOTE: In addition to the bounds specified above each function, all</span> </span> <span class="line" id="L8"><span class="tok-comment">// functions synthesized for this Montgomery arithmetic require the</span> </span> <span class="line" id="L9"><span class="tok-comment">// input to be strictly less than the prime modulus (m), and also</span> </span> <span class="line" id="L10"><span class="tok-comment">// require the input to be in the unique saturated representation.</span> </span> <span class="line" id="L11"><span class="tok-comment">// All functions also ensure that these two properties are true of</span> </span> <span class="line" id="L12"><span class="tok-comment">// return values.</span> </span> <span class="line" id="L13"><span class="tok-comment">//</span> </span> <span class="line" id="L14"><span class="tok-comment">// Computed values:</span> </span> <span class="line" id="L15"><span class="tok-comment">// eval z = z[0] + (z[1] << 64) + (z[2] << 128) + (z[3] << 192)</span> </span> <span class="line" id="L16"><span class="tok-comment">// bytes_eval z = z[0]</span> </span> <span class="line" id="L17"><span class="tok-comment">// + (z[1] << 8)</span> </span> <span class="line" id="L18"><span class="tok-comment">// + (z[2] << 16)</span> </span> <span class="line" id="L19"><span class="tok-comment">// + (z[3] << 24)</span> </span> <span class="line" id="L20"><span class="tok-comment">// + (z[4] << 32)</span> </span> <span class="line" id="L21"><span class="tok-comment">// + (z[5] << 40)</span> </span> <span class="line" id="L22"><span class="tok-comment">// + (z[6] << 48)</span> </span> <span class="line" id="L23"><span class="tok-comment">// + (z[7] << 56)</span> </span> <span class="line" id="L24"><span class="tok-comment">// + (z[8] << 64)</span> </span> <span class="line" id="L25"><span class="tok-comment">// + (z[9] << 72)</span> </span> <span class="line" id="L26"><span class="tok-comment">// + (z[10] << 80)</span> </span> <span class="line" id="L27"><span class="tok-comment">// + (z[11] << 88)</span> </span> <span class="line" id="L28"><span class="tok-comment">// + (z[12] << 96)</span> </span> <span class="line" id="L29"><span class="tok-comment">// + (z[13] << 104)</span> </span> <span class="line" id="L30"><span class="tok-comment">// + (z[14] << 112)</span> </span> <span class="line" id="L31"><span class="tok-comment">// + (z[15] << 120)</span> </span> <span class="line" id="L32"><span class="tok-comment">// + (z[16] << 128)</span> </span> <span class="line" id="L33"><span class="tok-comment">// + (z[17] << 136)</span> </span> <span class="line" id="L34"><span class="tok-comment">// + (z[18] << 144)</span> </span> <span class="line" id="L35"><span class="tok-comment">// + (z[19] << 152)</span> </span> <span class="line" id="L36"><span class="tok-comment">// + (z[20] << 160)</span> </span> <span class="line" id="L37"><span class="tok-comment">// + (z[21] << 168)</span> </span> <span class="line" id="L38"><span class="tok-comment">// + (z[22] << 176)</span> </span> <span class="line" id="L39"><span class="tok-comment">// + (z[23] << 184)</span> </span> <span class="line" id="L40"><span class="tok-comment">// + (z[24] << 192)</span> </span> <span class="line" id="L41"><span class="tok-comment">// + (z[25] << 200)</span> </span> <span class="line" id="L42"><span class="tok-comment">// + (z[26] << 208)</span> </span> <span class="line" id="L43"><span class="tok-comment">// + (z[27] << 216)</span> </span> <span class="line" id="L44"><span class="tok-comment">// + (z[28] << 224)</span> </span> <span class="line" id="L45"><span class="tok-comment">// + (z[29] << 232)</span> </span> <span class="line" id="L46"><span class="tok-comment">// + (z[30] << 240)</span> </span> <span class="line" id="L47"><span class="tok-comment">// + (z[31] << 248)</span> </span> <span class="line" id="L48"><span class="tok-comment">// twos_complement_eval z = let x1 := z[0] + (z[1] << 64) + (z[2] << 128) + (z[3] << 192) in</span> </span> <span class="line" id="L49"><span class="tok-comment">// if x1 & (2^256-1) < 2^255 then x1 & (2^256-1) else (x1 & (2^256-1)) - 2^256</span> </span> <span class="line" id="L50"></span> <span class="line" id="L51"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L52"><span class="tok-kw">const</span> mode = <span class="tok-builtin">@import</span>(<span class="tok-str">"builtin"</span>).mode; <span class="tok-comment">// Checked arithmetic is disabled in non-debug modes to avoid side channels</span> </span> <span class="line" id="L53"></span> <span class="line" id="L54"><span class="tok-comment">// The type MontgomeryDomainFieldElement is a field element in the Montgomery domain.</span> </span> <span class="line" id="L55"><span class="tok-comment">// Bounds: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span> </span> <span class="line" id="L56"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> MontgomeryDomainFieldElement = [<span class="tok-number">4</span>]<span class="tok-type">u64</span>;</span> <span class="line" id="L57"></span> <span class="line" id="L58"><span class="tok-comment">// The type NonMontgomeryDomainFieldElement is a field element NOT in the Montgomery domain.</span> </span> <span class="line" id="L59"><span class="tok-comment">// Bounds: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span> </span> <span class="line" id="L60"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> NonMontgomeryDomainFieldElement = [<span class="tok-number">4</span>]<span class="tok-type">u64</span>;</span> <span class="line" id="L61"></span> <span class="line" id="L62"><span class="tok-comment">/// The function addcarryxU64 is an addition with carry.</span></span> <span class="line" id="L63"><span class="tok-comment">///</span></span> <span class="line" id="L64"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L65"><span class="tok-comment">/// out1 = (arg1 + arg2 + arg3) mod 2^64</span></span> <span class="line" id="L66"><span class="tok-comment">/// out2 = ⌊(arg1 + arg2 + arg3) / 2^64⌋</span></span> <span class="line" id="L67"><span class="tok-comment">///</span></span> <span class="line" id="L68"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L69"><span class="tok-comment">/// arg1: [0x0 ~> 0x1]</span></span> <span class="line" id="L70"><span class="tok-comment">/// arg2: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L71"><span class="tok-comment">/// arg3: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L72"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L73"><span class="tok-comment">/// out1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L74"><span class="tok-comment">/// out2: [0x0 ~> 0x1]</span></span> <span class="line" id="L75"><span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">addcarryxU64</span>(out1: <span class="tok-type">u64</span>, out2: <span class="tok-type">u1</span>, arg1: <span class="tok-type">u1</span>, arg2: <span class="tok-type">u64</span>, arg3: <span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L76"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L77"></span> <span class="line" id="L78"> <span class="tok-kw">const</span> ov1 = <span class="tok-builtin">@addWithOverflow</span>(arg2, arg3);</span> <span class="line" id="L79"> <span class="tok-kw">const</span> ov2 = <span class="tok-builtin">@addWithOverflow</span>(ov1[<span class="tok-number">0</span>], arg1);</span> <span class="line" id="L80"> out1.* = ov2[<span class="tok-number">0</span>];</span> <span class="line" id="L81"> out2.* = ov1[<span class="tok-number">1</span>] \| ov2[<span class="tok-number">1</span>];</span> <span class="line" id="L82">}</span> <span class="line" id="L83"></span> <span class="line" id="L84"><span class="tok-comment">/// The function subborrowxU64 is a subtraction with borrow.</span></span> <span class="line" id="L85"><span class="tok-comment">///</span></span> <span class="line" id="L86"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L87"><span class="tok-comment">/// out1 = (-arg1 + arg2 + -arg3) mod 2^64</span></span> <span class="line" id="L88"><span class="tok-comment">/// out2 = -⌊(-arg1 + arg2 + -arg3) / 2^64⌋</span></span> <span class="line" id="L89"><span class="tok-comment">///</span></span> <span class="line" id="L90"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L91"><span class="tok-comment">/// arg1: [0x0 ~> 0x1]</span></span> <span class="line" id="L92"><span class="tok-comment">/// arg2: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L93"><span class="tok-comment">/// arg3: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L94"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L95"><span class="tok-comment">/// out1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L96"><span class="tok-comment">/// out2: [0x0 ~> 0x1]</span></span> <span class="line" id="L97"><span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">subborrowxU64</span>(out1: <span class="tok-type">u64</span>, out2: <span class="tok-type">u1</span>, arg1: <span class="tok-type">u1</span>, arg2: <span class="tok-type">u64</span>, arg3: <span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L98"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L99"></span> <span class="line" id="L100"> <span class="tok-kw">const</span> ov1 = <span class="tok-builtin">@subWithOverflow</span>(arg2, arg3);</span> <span class="line" id="L101"> <span class="tok-kw">const</span> ov2 = <span class="tok-builtin">@subWithOverflow</span>(ov1[<span class="tok-number">0</span>], arg1);</span> <span class="line" id="L102"> out1.* = ov2[<span class="tok-number">0</span>];</span> <span class="line" id="L103"> out2.* = ov1[<span class="tok-number">1</span>] \| ov2[<span class="tok-number">1</span>];</span> <span class="line" id="L104">}</span> <span class="line" id="L105"></span> <span class="line" id="L106"><span class="tok-comment">/// The function mulxU64 is a multiplication, returning the full double-width result.</span></span> <span class="line" id="L107"><span class="tok-comment">///</span></span> <span class="line" id="L108"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L109"><span class="tok-comment">/// out1 = (arg1 * arg2) mod 2^64</span></span> <span class="line" id="L110"><span class="tok-comment">/// out2 = ⌊arg1 * arg2 / 2^64⌋</span></span> <span class="line" id="L111"><span class="tok-comment">///</span></span> <span class="line" id="L112"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L113"><span class="tok-comment">/// arg1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L114"><span class="tok-comment">/// arg2: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L115"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L116"><span class="tok-comment">/// out1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L117"><span class="tok-comment">/// out2: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L118"><span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">mulxU64</span>(out1: <span class="tok-type">u64</span>, out2: <span class="tok-type">u64</span>, arg1: <span class="tok-type">u64</span>, arg2: <span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L119"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L120"></span> <span class="line" id="L121"> <span class="tok-kw">const</span> x = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, arg1) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, arg2);</span> <span class="line" id="L122"> out1.* = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(x));</span> <span class="line" id="L123"> out2.* = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(x >> <span class="tok-number">64</span>));</span> <span class="line" id="L124">}</span> <span class="line" id="L125"></span> <span class="line" id="L126"><span class="tok-comment">/// The function cmovznzU64 is a single-word conditional move.</span></span> <span class="line" id="L127"><span class="tok-comment">///</span></span> <span class="line" id="L128"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L129"><span class="tok-comment">/// out1 = (if arg1 = 0 then arg2 else arg3)</span></span> <span class="line" id="L130"><span class="tok-comment">///</span></span> <span class="line" id="L131"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L132"><span class="tok-comment">/// arg1: [0x0 ~> 0x1]</span></span> <span class="line" id="L133"><span class="tok-comment">/// arg2: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L134"><span class="tok-comment">/// arg3: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L135"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L136"><span class="tok-comment">/// out1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L137"><span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">cmovznzU64</span>(out1: <span class="tok-type">u64</span>, arg1: <span class="tok-type">u1</span>, arg2: <span class="tok-type">u64</span>, arg3: <span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L138"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L139"></span> <span class="line" id="L140"> <span class="tok-kw">const</span> mask = <span class="tok-number">0</span> -% <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, arg1);</span> <span class="line" id="L141"> out1. = (mask & arg3) \| ((~mask) & arg2);</span> <span class="line" id="L142">}</span> <span class="line" id="L143"></span> <span class="line" id="L144"><span class="tok-comment">/// The function mul multiplies two field elements in the Montgomery domain.</span></span> <span class="line" id="L145"><span class="tok-comment">///</span></span> <span class="line" id="L146"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L147"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L148"><span class="tok-comment">/// 0 ≤ eval arg2 < m</span></span> <span class="line" id="L149"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L150"><span class="tok-comment">/// eval (from_montgomery out1) mod m = (eval (from_montgomery arg1) * eval (from_montgomery arg2)) mod m</span></span> <span class="line" id="L151"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L152"><span class="tok-comment">///</span></span> <span class="line" id="L153"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">mul</span>(out1: MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldElement, arg2: MontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L154"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L155"></span> <span class="line" id="L156"> <span class="tok-kw">const</span> x1 = (arg1[<span class="tok-number">1</span>]);</span> <span class="line" id="L157"> <span class="tok-kw">const</span> x2 = (arg1[<span class="tok-number">2</span>]);</span> <span class="line" id="L158"> <span class="tok-kw">const</span> x3 = (arg1[<span class="tok-number">3</span>]);</span> <span class="line" id="L159"> <span class="tok-kw">const</span> x4 = (arg1[<span class="tok-number">0</span>]);</span> <span class="line" id="L160"> <span class="tok-kw">var</span> x5: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L161"> <span class="tok-kw">var</span> x6: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L162"> mulxU64(&x5, &x6, x4, (arg2[<span class="tok-number">3</span>]));</span> <span class="line" id="L163"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L164"> <span class="tok-kw">var</span> x8: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L165"> mulxU64(&x7, &x8, x4, (arg2[<span class="tok-number">2</span>]));</span> <span class="line" id="L166"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L167"> <span class="tok-kw">var</span> x10: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L168"> mulxU64(&x9, &x10, x4, (arg2[<span class="tok-number">1</span>]));</span> <span class="line" id="L169"> <span class="tok-kw">var</span> x11: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L170"> <span class="tok-kw">var</span> x12: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L171"> mulxU64(&x11, &x12, x4, (arg2[<span class="tok-number">0</span>]));</span> <span class="line" id="L172"> <span class="tok-kw">var</span> x13: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L173"> <span class="tok-kw">var</span> x14: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L174"> addcarryxU64(&x13, &x14, <span class="tok-number">0x0</span>, x12, x9);</span> <span class="line" id="L175"> <span class="tok-kw">var</span> x15: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L176"> <span class="tok-kw">var</span> x16: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L177"> addcarryxU64(&x15, &x16, x14, x10, x7);</span> <span class="line" id="L178"> <span class="tok-kw">var</span> x17: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L179"> <span class="tok-kw">var</span> x18: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L180"> addcarryxU64(&x17, &x18, x16, x8, x5);</span> <span class="line" id="L181"> <span class="tok-kw">const</span> x19 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x18) + x6);</span> <span class="line" id="L182"> <span class="tok-kw">var</span> x20: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L183"> <span class="tok-kw">var</span> x21: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L184"> mulxU64(&x20, &x21, x11, <span class="tok-number">0xccd1c8aaee00bc4f</span>);</span> <span class="line" id="L185"> <span class="tok-kw">var</span> x22: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L186"> <span class="tok-kw">var</span> x23: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L187"> mulxU64(&x22, &x23, x20, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L188"> <span class="tok-kw">var</span> x24: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L189"> <span class="tok-kw">var</span> x25: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L190"> mulxU64(&x24, &x25, x20, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L191"> <span class="tok-kw">var</span> x26: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L192"> <span class="tok-kw">var</span> x27: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L193"> mulxU64(&x26, &x27, x20, <span class="tok-number">0xbce6faada7179e84</span>);</span> <span class="line" id="L194"> <span class="tok-kw">var</span> x28: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L195"> <span class="tok-kw">var</span> x29: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L196"> mulxU64(&x28, &x29, x20, <span class="tok-number">0xf3b9cac2fc632551</span>);</span> <span class="line" id="L197"> <span class="tok-kw">var</span> x30: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L198"> <span class="tok-kw">var</span> x31: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L199"> addcarryxU64(&x30, &x31, <span class="tok-number">0x0</span>, x29, x26);</span> <span class="line" id="L200"> <span class="tok-kw">var</span> x32: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L201"> <span class="tok-kw">var</span> x33: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L202"> addcarryxU64(&x32, &x33, x31, x27, x24);</span> <span class="line" id="L203"> <span class="tok-kw">var</span> x34: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L204"> <span class="tok-kw">var</span> x35: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L205"> addcarryxU64(&x34, &x35, x33, x25, x22);</span> <span class="line" id="L206"> <span class="tok-kw">const</span> x36 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x35) + x23);</span> <span class="line" id="L207"> <span class="tok-kw">var</span> x37: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L208"> <span class="tok-kw">var</span> x38: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L209"> addcarryxU64(&x37, &x38, <span class="tok-number">0x0</span>, x11, x28);</span> <span class="line" id="L210"> <span class="tok-kw">var</span> x39: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L211"> <span class="tok-kw">var</span> x40: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L212"> addcarryxU64(&x39, &x40, x38, x13, x30);</span> <span class="line" id="L213"> <span class="tok-kw">var</span> x41: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L214"> <span class="tok-kw">var</span> x42: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L215"> addcarryxU64(&x41, &x42, x40, x15, x32);</span> <span class="line" id="L216"> <span class="tok-kw">var</span> x43: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L217"> <span class="tok-kw">var</span> x44: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L218"> addcarryxU64(&x43, &x44, x42, x17, x34);</span> <span class="line" id="L219"> <span class="tok-kw">var</span> x45: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L220"> <span class="tok-kw">var</span> x46: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L221"> addcarryxU64(&x45, &x46, x44, x19, x36);</span> <span class="line" id="L222"> <span class="tok-kw">var</span> x47: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L223"> <span class="tok-kw">var</span> x48: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L224"> mulxU64(&x47, &x48, x1, (arg2[<span class="tok-number">3</span>]));</span> <span class="line" id="L225"> <span class="tok-kw">var</span> x49: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L226"> <span class="tok-kw">var</span> x50: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L227"> mulxU64(&x49, &x50, x1, (arg2[<span class="tok-number">2</span>]));</span> <span class="line" id="L228"> <span class="tok-kw">var</span> x51: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L229"> <span class="tok-kw">var</span> x52: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L230"> mulxU64(&x51, &x52, x1, (arg2[<span class="tok-number">1</span>]));</span> <span class="line" id="L231"> <span class="tok-kw">var</span> x53: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L232"> <span class="tok-kw">var</span> x54: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L233"> mulxU64(&x53, &x54, x1, (arg2[<span class="tok-number">0</span>]));</span> <span class="line" id="L234"> <span class="tok-kw">var</span> x55: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L235"> <span class="tok-kw">var</span> x56: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L236"> addcarryxU64(&x55, &x56, <span class="tok-number">0x0</span>, x54, x51);</span> <span class="line" id="L237"> <span class="tok-kw">var</span> x57: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L238"> <span class="tok-kw">var</span> x58: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L239"> addcarryxU64(&x57, &x58, x56, x52, x49);</span> <span class="line" id="L240"> <span class="tok-kw">var</span> x59: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L241"> <span class="tok-kw">var</span> x60: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L242"> addcarryxU64(&x59, &x60, x58, x50, x47);</span> <span class="line" id="L243"> <span class="tok-kw">const</span> x61 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x60) + x48);</span> <span class="line" id="L244"> <span class="tok-kw">var</span> x62: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L245"> <span class="tok-kw">var</span> x63: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L246"> addcarryxU64(&x62, &x63, <span class="tok-number">0x0</span>, x39, x53);</span> <span class="line" id="L247"> <span class="tok-kw">var</span> x64: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L248"> <span class="tok-kw">var</span> x65: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L249"> addcarryxU64(&x64, &x65, x63, x41, x55);</span> <span class="line" id="L250"> <span class="tok-kw">var</span> x66: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L251"> <span class="tok-kw">var</span> x67: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L252"> addcarryxU64(&x66, &x67, x65, x43, x57);</span> <span class="line" id="L253"> <span class="tok-kw">var</span> x68: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L254"> <span class="tok-kw">var</span> x69: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L255"> addcarryxU64(&x68, &x69, x67, x45, x59);</span> <span class="line" id="L256"> <span class="tok-kw">var</span> x70: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L257"> <span class="tok-kw">var</span> x71: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L258"> addcarryxU64(&x70, &x71, x69, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x46), x61);</span> <span class="line" id="L259"> <span class="tok-kw">var</span> x72: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L260"> <span class="tok-kw">var</span> x73: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L261"> mulxU64(&x72, &x73, x62, <span class="tok-number">0xccd1c8aaee00bc4f</span>);</span> <span class="line" id="L262"> <span class="tok-kw">var</span> x74: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L263"> <span class="tok-kw">var</span> x75: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L264"> mulxU64(&x74, &x75, x72, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L265"> <span class="tok-kw">var</span> x76: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L266"> <span class="tok-kw">var</span> x77: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L267"> mulxU64(&x76, &x77, x72, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L268"> <span class="tok-kw">var</span> x78: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L269"> <span class="tok-kw">var</span> x79: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L270"> mulxU64(&x78, &x79, x72, <span class="tok-number">0xbce6faada7179e84</span>);</span> <span class="line" id="L271"> <span class="tok-kw">var</span> x80: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L272"> <span class="tok-kw">var</span> x81: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L273"> mulxU64(&x80, &x81, x72, <span class="tok-number">0xf3b9cac2fc632551</span>);</span> <span class="line" id="L274"> <span class="tok-kw">var</span> x82: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L275"> <span class="tok-kw">var</span> x83: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L276"> addcarryxU64(&x82, &x83, <span class="tok-number">0x0</span>, x81, x78);</span> <span class="line" id="L277"> <span class="tok-kw">var</span> x84: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L278"> <span class="tok-kw">var</span> x85: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L279"> addcarryxU64(&x84, &x85, x83, x79, x76);</span> <span class="line" id="L280"> <span class="tok-kw">var</span> x86: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L281"> <span class="tok-kw">var</span> x87: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L282"> addcarryxU64(&x86, &x87, x85, x77, x74);</span> <span class="line" id="L283"> <span class="tok-kw">const</span> x88 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x87) + x75);</span> <span class="line" id="L284"> <span class="tok-kw">var</span> x89: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L285"> <span class="tok-kw">var</span> x90: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L286"> addcarryxU64(&x89, &x90, <span class="tok-number">0x0</span>, x62, x80);</span> <span class="line" id="L287"> <span class="tok-kw">var</span> x91: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L288"> <span class="tok-kw">var</span> x92: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L289"> addcarryxU64(&x91, &x92, x90, x64, x82);</span> <span class="line" id="L290"> <span class="tok-kw">var</span> x93: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L291"> <span class="tok-kw">var</span> x94: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L292"> addcarryxU64(&x93, &x94, x92, x66, x84);</span> <span class="line" id="L293"> <span class="tok-kw">var</span> x95: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L294"> <span class="tok-kw">var</span> x96: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L295"> addcarryxU64(&x95, &x96, x94, x68, x86);</span> <span class="line" id="L296"> <span class="tok-kw">var</span> x97: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L297"> <span class="tok-kw">var</span> x98: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L298"> addcarryxU64(&x97, &x98, x96, x70, x88);</span> <span class="line" id="L299"> <span class="tok-kw">const</span> x99 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x98) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x71));</span> <span class="line" id="L300"> <span class="tok-kw">var</span> x100: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L301"> <span class="tok-kw">var</span> x101: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L302"> mulxU64(&x100, &x101, x2, (arg2[<span class="tok-number">3</span>]));</span> <span class="line" id="L303"> <span class="tok-kw">var</span> x102: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L304"> <span class="tok-kw">var</span> x103: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L305"> mulxU64(&x102, &x103, x2, (arg2[<span class="tok-number">2</span>]));</span> <span class="line" id="L306"> <span class="tok-kw">var</span> x104: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L307"> <span class="tok-kw">var</span> x105: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L308"> mulxU64(&x104, &x105, x2, (arg2[<span class="tok-number">1</span>]));</span> <span class="line" id="L309"> <span class="tok-kw">var</span> x106: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L310"> <span class="tok-kw">var</span> x107: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L311"> mulxU64(&x106, &x107, x2, (arg2[<span class="tok-number">0</span>]));</span> <span class="line" id="L312"> <span class="tok-kw">var</span> x108: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L313"> <span class="tok-kw">var</span> x109: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L314"> addcarryxU64(&x108, &x109, <span class="tok-number">0x0</span>, x107, x104);</span> <span class="line" id="L315"> <span class="tok-kw">var</span> x110: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L316"> <span class="tok-kw">var</span> x111: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L317"> addcarryxU64(&x110, &x111, x109, x105, x102);</span> <span class="line" id="L318"> <span class="tok-kw">var</span> x112: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L319"> <span class="tok-kw">var</span> x113: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L320"> addcarryxU64(&x112, &x113, x111, x103, x100);</span> <span class="line" id="L321"> <span class="tok-kw">const</span> x114 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x113) + x101);</span> <span class="line" id="L322"> <span class="tok-kw">var</span> x115: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L323"> <span class="tok-kw">var</span> x116: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L324"> addcarryxU64(&x115, &x116, <span class="tok-number">0x0</span>, x91, x106);</span> <span class="line" id="L325"> <span class="tok-kw">var</span> x117: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L326"> <span class="tok-kw">var</span> x118: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L327"> addcarryxU64(&x117, &x118, x116, x93, x108);</span> <span class="line" id="L328"> <span class="tok-kw">var</span> x119: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L329"> <span class="tok-kw">var</span> x120: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L330"> addcarryxU64(&x119, &x120, x118, x95, x110);</span> <span class="line" id="L331"> <span class="tok-kw">var</span> x121: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L332"> <span class="tok-kw">var</span> x122: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L333"> addcarryxU64(&x121, &x122, x120, x97, x112);</span> <span class="line" id="L334"> <span class="tok-kw">var</span> x123: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L335"> <span class="tok-kw">var</span> x124: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L336"> addcarryxU64(&x123, &x124, x122, x99, x114);</span> <span class="line" id="L337"> <span class="tok-kw">var</span> x125: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L338"> <span class="tok-kw">var</span> x126: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L339"> mulxU64(&x125, &x126, x115, <span class="tok-number">0xccd1c8aaee00bc4f</span>);</span> <span class="line" id="L340"> <span class="tok-kw">var</span> x127: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L341"> <span class="tok-kw">var</span> x128: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L342"> mulxU64(&x127, &x128, x125, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L343"> <span class="tok-kw">var</span> x129: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L344"> <span class="tok-kw">var</span> x130: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L345"> mulxU64(&x129, &x130, x125, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L346"> <span class="tok-kw">var</span> x131: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L347"> <span class="tok-kw">var</span> x132: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L348"> mulxU64(&x131, &x132, x125, <span class="tok-number">0xbce6faada7179e84</span>);</span> <span class="line" id="L349"> <span class="tok-kw">var</span> x133: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L350"> <span class="tok-kw">var</span> x134: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L351"> mulxU64(&x133, &x134, x125, <span class="tok-number">0xf3b9cac2fc632551</span>);</span> <span class="line" id="L352"> <span class="tok-kw">var</span> x135: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L353"> <span class="tok-kw">var</span> x136: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L354"> addcarryxU64(&x135, &x136, <span class="tok-number">0x0</span>, x134, x131);</span> <span class="line" id="L355"> <span class="tok-kw">var</span> x137: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L356"> <span class="tok-kw">var</span> x138: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L357"> addcarryxU64(&x137, &x138, x136, x132, x129);</span> <span class="line" id="L358"> <span class="tok-kw">var</span> x139: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L359"> <span class="tok-kw">var</span> x140: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L360"> addcarryxU64(&x139, &x140, x138, x130, x127);</span> <span class="line" id="L361"> <span class="tok-kw">const</span> x141 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x140) + x128);</span> <span class="line" id="L362"> <span class="tok-kw">var</span> x142: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L363"> <span class="tok-kw">var</span> x143: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L364"> addcarryxU64(&x142, &x143, <span class="tok-number">0x0</span>, x115, x133);</span> <span class="line" id="L365"> <span class="tok-kw">var</span> x144: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L366"> <span class="tok-kw">var</span> x145: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L367"> addcarryxU64(&x144, &x145, x143, x117, x135);</span> <span class="line" id="L368"> <span class="tok-kw">var</span> x146: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L369"> <span class="tok-kw">var</span> x147: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L370"> addcarryxU64(&x146, &x147, x145, x119, x137);</span> <span class="line" id="L371"> <span class="tok-kw">var</span> x148: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L372"> <span class="tok-kw">var</span> x149: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L373"> addcarryxU64(&x148, &x149, x147, x121, x139);</span> <span class="line" id="L374"> <span class="tok-kw">var</span> x150: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L375"> <span class="tok-kw">var</span> x151: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L376"> addcarryxU64(&x150, &x151, x149, x123, x141);</span> <span class="line" id="L377"> <span class="tok-kw">const</span> x152 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x151) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x124));</span> <span class="line" id="L378"> <span class="tok-kw">var</span> x153: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L379"> <span class="tok-kw">var</span> x154: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L380"> mulxU64(&x153, &x154, x3, (arg2[<span class="tok-number">3</span>]));</span> <span class="line" id="L381"> <span class="tok-kw">var</span> x155: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L382"> <span class="tok-kw">var</span> x156: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L383"> mulxU64(&x155, &x156, x3, (arg2[<span class="tok-number">2</span>]));</span> <span class="line" id="L384"> <span class="tok-kw">var</span> x157: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L385"> <span class="tok-kw">var</span> x158: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L386"> mulxU64(&x157, &x158, x3, (arg2[<span class="tok-number">1</span>]));</span> <span class="line" id="L387"> <span class="tok-kw">var</span> x159: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L388"> <span class="tok-kw">var</span> x160: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L389"> mulxU64(&x159, &x160, x3, (arg2[<span class="tok-number">0</span>]));</span> <span class="line" id="L390"> <span class="tok-kw">var</span> x161: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L391"> <span class="tok-kw">var</span> x162: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L392"> addcarryxU64(&x161, &x162, <span class="tok-number">0x0</span>, x160, x157);</span> <span class="line" id="L393"> <span class="tok-kw">var</span> x163: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L394"> <span class="tok-kw">var</span> x164: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L395"> addcarryxU64(&x163, &x164, x162, x158, x155);</span> <span class="line" id="L396"> <span class="tok-kw">var</span> x165: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L397"> <span class="tok-kw">var</span> x166: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L398"> addcarryxU64(&x165, &x166, x164, x156, x153);</span> <span class="line" id="L399"> <span class="tok-kw">const</span> x167 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x166) + x154);</span> <span class="line" id="L400"> <span class="tok-kw">var</span> x168: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L401"> <span class="tok-kw">var</span> x169: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L402"> addcarryxU64(&x168, &x169, <span class="tok-number">0x0</span>, x144, x159);</span> <span class="line" id="L403"> <span class="tok-kw">var</span> x170: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L404"> <span class="tok-kw">var</span> x171: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L405"> addcarryxU64(&x170, &x171, x169, x146, x161);</span> <span class="line" id="L406"> <span class="tok-kw">var</span> x172: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L407"> <span class="tok-kw">var</span> x173: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L408"> addcarryxU64(&x172, &x173, x171, x148, x163);</span> <span class="line" id="L409"> <span class="tok-kw">var</span> x174: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L410"> <span class="tok-kw">var</span> x175: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L411"> addcarryxU64(&x174, &x175, x173, x150, x165);</span> <span class="line" id="L412"> <span class="tok-kw">var</span> x176: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L413"> <span class="tok-kw">var</span> x177: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L414"> addcarryxU64(&x176, &x177, x175, x152, x167);</span> <span class="line" id="L415"> <span class="tok-kw">var</span> x178: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L416"> <span class="tok-kw">var</span> x179: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L417"> mulxU64(&x178, &x179, x168, <span class="tok-number">0xccd1c8aaee00bc4f</span>);</span> <span class="line" id="L418"> <span class="tok-kw">var</span> x180: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L419"> <span class="tok-kw">var</span> x181: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L420"> mulxU64(&x180, &x181, x178, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L421"> <span class="tok-kw">var</span> x182: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L422"> <span class="tok-kw">var</span> x183: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L423"> mulxU64(&x182, &x183, x178, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L424"> <span class="tok-kw">var</span> x184: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L425"> <span class="tok-kw">var</span> x185: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L426"> mulxU64(&x184, &x185, x178, <span class="tok-number">0xbce6faada7179e84</span>);</span> <span class="line" id="L427"> <span class="tok-kw">var</span> x186: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L428"> <span class="tok-kw">var</span> x187: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L429"> mulxU64(&x186, &x187, x178, <span class="tok-number">0xf3b9cac2fc632551</span>);</span> <span class="line" id="L430"> <span class="tok-kw">var</span> x188: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L431"> <span class="tok-kw">var</span> x189: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L432"> addcarryxU64(&x188, &x189, <span class="tok-number">0x0</span>, x187, x184);</span> <span class="line" id="L433"> <span class="tok-kw">var</span> x190: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L434"> <span class="tok-kw">var</span> x191: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L435"> addcarryxU64(&x190, &x191, x189, x185, x182);</span> <span class="line" id="L436"> <span class="tok-kw">var</span> x192: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L437"> <span class="tok-kw">var</span> x193: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L438"> addcarryxU64(&x192, &x193, x191, x183, x180);</span> <span class="line" id="L439"> <span class="tok-kw">const</span> x194 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x193) + x181);</span> <span class="line" id="L440"> <span class="tok-kw">var</span> x195: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L441"> <span class="tok-kw">var</span> x196: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L442"> addcarryxU64(&x195, &x196, <span class="tok-number">0x0</span>, x168, x186);</span> <span class="line" id="L443"> <span class="tok-kw">var</span> x197: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L444"> <span class="tok-kw">var</span> x198: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L445"> addcarryxU64(&x197, &x198, x196, x170, x188);</span> <span class="line" id="L446"> <span class="tok-kw">var</span> x199: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L447"> <span class="tok-kw">var</span> x200: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L448"> addcarryxU64(&x199, &x200, x198, x172, x190);</span> <span class="line" id="L449"> <span class="tok-kw">var</span> x201: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L450"> <span class="tok-kw">var</span> x202: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L451"> addcarryxU64(&x201, &x202, x200, x174, x192);</span> <span class="line" id="L452"> <span class="tok-kw">var</span> x203: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L453"> <span class="tok-kw">var</span> x204: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L454"> addcarryxU64(&x203, &x204, x202, x176, x194);</span> <span class="line" id="L455"> <span class="tok-kw">const</span> x205 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x204) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x177));</span> <span class="line" id="L456"> <span class="tok-kw">var</span> x206: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L457"> <span class="tok-kw">var</span> x207: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L458"> subborrowxU64(&x206, &x207, <span class="tok-number">0x0</span>, x197, <span class="tok-number">0xf3b9cac2fc632551</span>);</span> <span class="line" id="L459"> <span class="tok-kw">var</span> x208: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L460"> <span class="tok-kw">var</span> x209: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L461"> subborrowxU64(&x208, &x209, x207, x199, <span class="tok-number">0xbce6faada7179e84</span>);</span> <span class="line" id="L462"> <span class="tok-kw">var</span> x210: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L463"> <span class="tok-kw">var</span> x211: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L464"> subborrowxU64(&x210, &x211, x209, x201, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L465"> <span class="tok-kw">var</span> x212: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L466"> <span class="tok-kw">var</span> x213: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L467"> subborrowxU64(&x212, &x213, x211, x203, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L468"> <span class="tok-kw">var</span> x214: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L469"> <span class="tok-kw">var</span> x215: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L470"> subborrowxU64(&x214, &x215, x213, x205, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>));</span> <span class="line" id="L471"> <span class="tok-kw">var</span> x216: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L472"> cmovznzU64(&x216, x215, x206, x197);</span> <span class="line" id="L473"> <span class="tok-kw">var</span> x217: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L474"> cmovznzU64(&x217, x215, x208, x199);</span> <span class="line" id="L475"> <span class="tok-kw">var</span> x218: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L476"> cmovznzU64(&x218, x215, x210, x201);</span> <span class="line" id="L477"> <span class="tok-kw">var</span> x219: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L478"> cmovznzU64(&x219, x215, x212, x203);</span> <span class="line" id="L479"> out1[<span class="tok-number">0</span>] = x216;</span> <span class="line" id="L480"> out1[<span class="tok-number">1</span>] = x217;</span> <span class="line" id="L481"> out1[<span class="tok-number">2</span>] = x218;</span> <span class="line" id="L482"> out1[<span class="tok-number">3</span>] = x219;</span> <span class="line" id="L483">}</span> <span class="line" id="L484"></span> <span class="line" id="L485"><span class="tok-comment">/// The function square squares a field element in the Montgomery domain.</span></span> <span class="line" id="L486"><span class="tok-comment">///</span></span> <span class="line" id="L487"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L488"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L489"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L490"><span class="tok-comment">/// eval (from_montgomery out1) mod m = (eval (from_montgomery arg1) eval (from_montgomery arg1)) mod m</span></span> <span class="line" id="L491"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L492"><span class="tok-comment">///</span></span> <span class="line" id="L493"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">square</span>(out1: MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L494"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L495"></span> <span class="line" id="L496"> <span class="tok-kw">const</span> x1 = (arg1[<span class="tok-number">1</span>]);</span> <span class="line" id="L497"> <span class="tok-kw">const</span> x2 = (arg1[<span class="tok-number">2</span>]);</span> <span class="line" id="L498"> <span class="tok-kw">const</span> x3 = (arg1[<span class="tok-number">3</span>]);</span> <span class="line" id="L499"> <span class="tok-kw">const</span> x4 = (arg1[<span class="tok-number">0</span>]);</span> <span class="line" id="L500"> <span class="tok-kw">var</span> x5: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L501"> <span class="tok-kw">var</span> x6: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L502"> mulxU64(&x5, &x6, x4, (arg1[<span class="tok-number">3</span>]));</span> <span class="line" id="L503"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L504"> <span class="tok-kw">var</span> x8: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L505"> mulxU64(&x7, &x8, x4, (arg1[<span class="tok-number">2</span>]));</span> <span class="line" id="L506"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L507"> <span class="tok-kw">var</span> x10: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L508"> mulxU64(&x9, &x10, x4, (arg1[<span class="tok-number">1</span>]));</span> <span class="line" id="L509"> <span class="tok-kw">var</span> x11: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L510"> <span class="tok-kw">var</span> x12: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L511"> mulxU64(&x11, &x12, x4, (arg1[<span class="tok-number">0</span>]));</span> <span class="line" id="L512"> <span class="tok-kw">var</span> x13: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L513"> <span class="tok-kw">var</span> x14: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L514"> addcarryxU64(&x13, &x14, <span class="tok-number">0x0</span>, x12, x9);</span> <span class="line" id="L515"> <span class="tok-kw">var</span> x15: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L516"> <span class="tok-kw">var</span> x16: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L517"> addcarryxU64(&x15, &x16, x14, x10, x7);</span> <span class="line" id="L518"> <span class="tok-kw">var</span> x17: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L519"> <span class="tok-kw">var</span> x18: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L520"> addcarryxU64(&x17, &x18, x16, x8, x5);</span> <span class="line" id="L521"> <span class="tok-kw">const</span> x19 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x18) + x6);</span> <span class="line" id="L522"> <span class="tok-kw">var</span> x20: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L523"> <span class="tok-kw">var</span> x21: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L524"> mulxU64(&x20, &x21, x11, <span class="tok-number">0xccd1c8aaee00bc4f</span>);</span> <span class="line" id="L525"> <span class="tok-kw">var</span> x22: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L526"> <span class="tok-kw">var</span> x23: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L527"> mulxU64(&x22, &x23, x20, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L528"> <span class="tok-kw">var</span> x24: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L529"> <span class="tok-kw">var</span> x25: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L530"> mulxU64(&x24, &x25, x20, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L531"> <span class="tok-kw">var</span> x26: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L532"> <span class="tok-kw">var</span> x27: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L533"> mulxU64(&x26, &x27, x20, <span class="tok-number">0xbce6faada7179e84</span>);</span> <span class="line" id="L534"> <span class="tok-kw">var</span> x28: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L535"> <span class="tok-kw">var</span> x29: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L536"> mulxU64(&x28, &x29, x20, <span class="tok-number">0xf3b9cac2fc632551</span>);</span> <span class="line" id="L537"> <span class="tok-kw">var</span> x30: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L538"> <span class="tok-kw">var</span> x31: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L539"> addcarryxU64(&x30, &x31, <span class="tok-number">0x0</span>, x29, x26);</span> <span class="line" id="L540"> <span class="tok-kw">var</span> x32: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L541"> <span class="tok-kw">var</span> x33: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L542"> addcarryxU64(&x32, &x33, x31, x27, x24);</span> <span class="line" id="L543"> <span class="tok-kw">var</span> x34: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L544"> <span class="tok-kw">var</span> x35: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L545"> addcarryxU64(&x34, &x35, x33, x25, x22);</span> <span class="line" id="L546"> <span class="tok-kw">const</span> x36 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x35) + x23);</span> <span class="line" id="L547"> <span class="tok-kw">var</span> x37: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L548"> <span class="tok-kw">var</span> x38: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L549"> addcarryxU64(&x37, &x38, <span class="tok-number">0x0</span>, x11, x28);</span> <span class="line" id="L550"> <span class="tok-kw">var</span> x39: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L551"> <span class="tok-kw">var</span> x40: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L552"> addcarryxU64(&x39, &x40, x38, x13, x30);</span> <span class="line" id="L553"> <span class="tok-kw">var</span> x41: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L554"> <span class="tok-kw">var</span> x42: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L555"> addcarryxU64(&x41, &x42, x40, x15, x32);</span> <span class="line" id="L556"> <span class="tok-kw">var</span> x43: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L557"> <span class="tok-kw">var</span> x44: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L558"> addcarryxU64(&x43, &x44, x42, x17, x34);</span> <span class="line" id="L559"> <span class="tok-kw">var</span> x45: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L560"> <span class="tok-kw">var</span> x46: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L561"> addcarryxU64(&x45, &x46, x44, x19, x36);</span> <span class="line" id="L562"> <span class="tok-kw">var</span> x47: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L563"> <span class="tok-kw">var</span> x48: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L564"> mulxU64(&x47, &x48, x1, (arg1[<span class="tok-number">3</span>]));</span> <span class="line" id="L565"> <span class="tok-kw">var</span> x49: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L566"> <span class="tok-kw">var</span> x50: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L567"> mulxU64(&x49, &x50, x1, (arg1[<span class="tok-number">2</span>]));</span> <span class="line" id="L568"> <span class="tok-kw">var</span> x51: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L569"> <span class="tok-kw">var</span> x52: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L570"> mulxU64(&x51, &x52, x1, (arg1[<span class="tok-number">1</span>]));</span> <span class="line" id="L571"> <span class="tok-kw">var</span> x53: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L572"> <span class="tok-kw">var</span> x54: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L573"> mulxU64(&x53, &x54, x1, (arg1[<span class="tok-number">0</span>]));</span> <span class="line" id="L574"> <span class="tok-kw">var</span> x55: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L575"> <span class="tok-kw">var</span> x56: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L576"> addcarryxU64(&x55, &x56, <span class="tok-number">0x0</span>, x54, x51);</span> <span class="line" id="L577"> <span class="tok-kw">var</span> x57: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L578"> <span class="tok-kw">var</span> x58: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L579"> addcarryxU64(&x57, &x58, x56, x52, x49);</span> <span class="line" id="L580"> <span class="tok-kw">var</span> x59: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L581"> <span class="tok-kw">var</span> x60: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L582"> addcarryxU64(&x59, &x60, x58, x50, x47);</span> <span class="line" id="L583"> <span class="tok-kw">const</span> x61 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x60) + x48);</span> <span class="line" id="L584"> <span class="tok-kw">var</span> x62: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L585"> <span class="tok-kw">var</span> x63: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L586"> addcarryxU64(&x62, &x63, <span class="tok-number">0x0</span>, x39, x53);</span> <span class="line" id="L587"> <span class="tok-kw">var</span> x64: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L588"> <span class="tok-kw">var</span> x65: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L589"> addcarryxU64(&x64, &x65, x63, x41, x55);</span> <span class="line" id="L590"> <span class="tok-kw">var</span> x66: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L591"> <span class="tok-kw">var</span> x67: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L592"> addcarryxU64(&x66, &x67, x65, x43, x57);</span> <span class="line" id="L593"> <span class="tok-kw">var</span> x68: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L594"> <span class="tok-kw">var</span> x69: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L595"> addcarryxU64(&x68, &x69, x67, x45, x59);</span> <span class="line" id="L596"> <span class="tok-kw">var</span> x70: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L597"> <span class="tok-kw">var</span> x71: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L598"> addcarryxU64(&x70, &x71, x69, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x46), x61);</span> <span class="line" id="L599"> <span class="tok-kw">var</span> x72: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L600"> <span class="tok-kw">var</span> x73: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L601"> mulxU64(&x72, &x73, x62, <span class="tok-number">0xccd1c8aaee00bc4f</span>);</span> <span class="line" id="L602"> <span class="tok-kw">var</span> x74: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L603"> <span class="tok-kw">var</span> x75: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L604"> mulxU64(&x74, &x75, x72, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L605"> <span class="tok-kw">var</span> x76: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L606"> <span class="tok-kw">var</span> x77: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L607"> mulxU64(&x76, &x77, x72, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L608"> <span class="tok-kw">var</span> x78: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L609"> <span class="tok-kw">var</span> x79: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L610"> mulxU64(&x78, &x79, x72, <span class="tok-number">0xbce6faada7179e84</span>);</span> <span class="line" id="L611"> <span class="tok-kw">var</span> x80: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L612"> <span class="tok-kw">var</span> x81: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L613"> mulxU64(&x80, &x81, x72, <span class="tok-number">0xf3b9cac2fc632551</span>);</span> <span class="line" id="L614"> <span class="tok-kw">var</span> x82: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L615"> <span class="tok-kw">var</span> x83: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L616"> addcarryxU64(&x82, &x83, <span class="tok-number">0x0</span>, x81, x78);</span> <span class="line" id="L617"> <span class="tok-kw">var</span> x84: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L618"> <span class="tok-kw">var</span> x85: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L619"> addcarryxU64(&x84, &x85, x83, x79, x76);</span> <span class="line" id="L620"> <span class="tok-kw">var</span> x86: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L621"> <span class="tok-kw">var</span> x87: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L622"> addcarryxU64(&x86, &x87, x85, x77, x74);</span> <span class="line" id="L623"> <span class="tok-kw">const</span> x88 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x87) + x75);</span> <span class="line" id="L624"> <span class="tok-kw">var</span> x89: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L625"> <span class="tok-kw">var</span> x90: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L626"> addcarryxU64(&x89, &x90, <span class="tok-number">0x0</span>, x62, x80);</span> <span class="line" id="L627"> <span class="tok-kw">var</span> x91: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L628"> <span class="tok-kw">var</span> x92: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L629"> addcarryxU64(&x91, &x92, x90, x64, x82);</span> <span class="line" id="L630"> <span class="tok-kw">var</span> x93: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L631"> <span class="tok-kw">var</span> x94: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L632"> addcarryxU64(&x93, &x94, x92, x66, x84);</span> <span class="line" id="L633"> <span class="tok-kw">var</span> x95: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L634"> <span class="tok-kw">var</span> x96: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L635"> addcarryxU64(&x95, &x96, x94, x68, x86);</span> <span class="line" id="L636"> <span class="tok-kw">var</span> x97: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L637"> <span class="tok-kw">var</span> x98: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L638"> addcarryxU64(&x97, &x98, x96, x70, x88);</span> <span class="line" id="L639"> <span class="tok-kw">const</span> x99 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x98) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x71));</span> <span class="line" id="L640"> <span class="tok-kw">var</span> x100: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L641"> <span class="tok-kw">var</span> x101: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L642"> mulxU64(&x100, &x101, x2, (arg1[<span class="tok-number">3</span>]));</span> <span class="line" id="L643"> <span class="tok-kw">var</span> x102: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L644"> <span class="tok-kw">var</span> x103: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L645"> mulxU64(&x102, &x103, x2, (arg1[<span class="tok-number">2</span>]));</span> <span class="line" id="L646"> <span class="tok-kw">var</span> x104: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L647"> <span class="tok-kw">var</span> x105: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L648"> mulxU64(&x104, &x105, x2, (arg1[<span class="tok-number">1</span>]));</span> <span class="line" id="L649"> <span class="tok-kw">var</span> x106: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L650"> <span class="tok-kw">var</span> x107: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L651"> mulxU64(&x106, &x107, x2, (arg1[<span class="tok-number">0</span>]));</span> <span class="line" id="L652"> <span class="tok-kw">var</span> x108: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L653"> <span class="tok-kw">var</span> x109: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L654"> addcarryxU64(&x108, &x109, <span class="tok-number">0x0</span>, x107, x104);</span> <span class="line" id="L655"> <span class="tok-kw">var</span> x110: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L656"> <span class="tok-kw">var</span> x111: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L657"> addcarryxU64(&x110, &x111, x109, x105, x102);</span> <span class="line" id="L658"> <span class="tok-kw">var</span> x112: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L659"> <span class="tok-kw">var</span> x113: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L660"> addcarryxU64(&x112, &x113, x111, x103, x100);</span> <span class="line" id="L661"> <span class="tok-kw">const</span> x114 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x113) + x101);</span> <span class="line" id="L662"> <span class="tok-kw">var</span> x115: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L663"> <span class="tok-kw">var</span> x116: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L664"> addcarryxU64(&x115, &x116, <span class="tok-number">0x0</span>, x91, x106);</span> <span class="line" id="L665"> <span class="tok-kw">var</span> x117: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L666"> <span class="tok-kw">var</span> x118: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L667"> addcarryxU64(&x117, &x118, x116, x93, x108);</span> <span class="line" id="L668"> <span class="tok-kw">var</span> x119: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L669"> <span class="tok-kw">var</span> x120: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L670"> addcarryxU64(&x119, &x120, x118, x95, x110);</span> <span class="line" id="L671"> <span class="tok-kw">var</span> x121: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L672"> <span class="tok-kw">var</span> x122: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L673"> addcarryxU64(&x121, &x122, x120, x97, x112);</span> <span class="line" id="L674"> <span class="tok-kw">var</span> x123: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L675"> <span class="tok-kw">var</span> x124: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L676"> addcarryxU64(&x123, &x124, x122, x99, x114);</span> <span class="line" id="L677"> <span class="tok-kw">var</span> x125: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L678"> <span class="tok-kw">var</span> x126: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L679"> mulxU64(&x125, &x126, x115, <span class="tok-number">0xccd1c8aaee00bc4f</span>);</span> <span class="line" id="L680"> <span class="tok-kw">var</span> x127: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L681"> <span class="tok-kw">var</span> x128: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L682"> mulxU64(&x127, &x128, x125, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L683"> <span class="tok-kw">var</span> x129: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L684"> <span class="tok-kw">var</span> x130: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L685"> mulxU64(&x129, &x130, x125, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L686"> <span class="tok-kw">var</span> x131: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L687"> <span class="tok-kw">var</span> x132: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L688"> mulxU64(&x131, &x132, x125, <span class="tok-number">0xbce6faada7179e84</span>);</span> <span class="line" id="L689"> <span class="tok-kw">var</span> x133: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L690"> <span class="tok-kw">var</span> x134: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L691"> mulxU64(&x133, &x134, x125, <span class="tok-number">0xf3b9cac2fc632551</span>);</span> <span class="line" id="L692"> <span class="tok-kw">var</span> x135: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L693"> <span class="tok-kw">var</span> x136: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L694"> addcarryxU64(&x135, &x136, <span class="tok-number">0x0</span>, x134, x131);</span> <span class="line" id="L695"> <span class="tok-kw">var</span> x137: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L696"> <span class="tok-kw">var</span> x138: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L697"> addcarryxU64(&x137, &x138, x136, x132, x129);</span> <span class="line" id="L698"> <span class="tok-kw">var</span> x139: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L699"> <span class="tok-kw">var</span> x140: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L700"> addcarryxU64(&x139, &x140, x138, x130, x127);</span> <span class="line" id="L701"> <span class="tok-kw">const</span> x141 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x140) + x128);</span> <span class="line" id="L702"> <span class="tok-kw">var</span> x142: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L703"> <span class="tok-kw">var</span> x143: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L704"> addcarryxU64(&x142, &x143, <span class="tok-number">0x0</span>, x115, x133);</span> <span class="line" id="L705"> <span class="tok-kw">var</span> x144: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L706"> <span class="tok-kw">var</span> x145: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L707"> addcarryxU64(&x144, &x145, x143, x117, x135);</span> <span class="line" id="L708"> <span class="tok-kw">var</span> x146: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L709"> <span class="tok-kw">var</span> x147: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L710"> addcarryxU64(&x146, &x147, x145, x119, x137);</span> <span class="line" id="L711"> <span class="tok-kw">var</span> x148: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L712"> <span class="tok-kw">var</span> x149: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L713"> addcarryxU64(&x148, &x149, x147, x121, x139);</span> <span class="line" id="L714"> <span class="tok-kw">var</span> x150: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L715"> <span class="tok-kw">var</span> x151: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L716"> addcarryxU64(&x150, &x151, x149, x123, x141);</span> <span class="line" id="L717"> <span class="tok-kw">const</span> x152 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x151) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x124));</span> <span class="line" id="L718"> <span class="tok-kw">var</span> x153: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L719"> <span class="tok-kw">var</span> x154: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L720"> mulxU64(&x153, &x154, x3, (arg1[<span class="tok-number">3</span>]));</span> <span class="line" id="L721"> <span class="tok-kw">var</span> x155: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L722"> <span class="tok-kw">var</span> x156: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L723"> mulxU64(&x155, &x156, x3, (arg1[<span class="tok-number">2</span>]));</span> <span class="line" id="L724"> <span class="tok-kw">var</span> x157: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L725"> <span class="tok-kw">var</span> x158: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L726"> mulxU64(&x157, &x158, x3, (arg1[<span class="tok-number">1</span>]));</span> <span class="line" id="L727"> <span class="tok-kw">var</span> x159: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L728"> <span class="tok-kw">var</span> x160: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L729"> mulxU64(&x159, &x160, x3, (arg1[<span class="tok-number">0</span>]));</span> <span class="line" id="L730"> <span class="tok-kw">var</span> x161: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L731"> <span class="tok-kw">var</span> x162: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L732"> addcarryxU64(&x161, &x162, <span class="tok-number">0x0</span>, x160, x157);</span> <span class="line" id="L733"> <span class="tok-kw">var</span> x163: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L734"> <span class="tok-kw">var</span> x164: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L735"> addcarryxU64(&x163, &x164, x162, x158, x155);</span> <span class="line" id="L736"> <span class="tok-kw">var</span> x165: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L737"> <span class="tok-kw">var</span> x166: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L738"> addcarryxU64(&x165, &x166, x164, x156, x153);</span> <span class="line" id="L739"> <span class="tok-kw">const</span> x167 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x166) + x154);</span> <span class="line" id="L740"> <span class="tok-kw">var</span> x168: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L741"> <span class="tok-kw">var</span> x169: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L742"> addcarryxU64(&x168, &x169, <span class="tok-number">0x0</span>, x144, x159);</span> <span class="line" id="L743"> <span class="tok-kw">var</span> x170: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L744"> <span class="tok-kw">var</span> x171: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L745"> addcarryxU64(&x170, &x171, x169, x146, x161);</span> <span class="line" id="L746"> <span class="tok-kw">var</span> x172: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L747"> <span class="tok-kw">var</span> x173: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L748"> addcarryxU64(&x172, &x173, x171, x148, x163);</span> <span class="line" id="L749"> <span class="tok-kw">var</span> x174: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L750"> <span class="tok-kw">var</span> x175: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L751"> addcarryxU64(&x174, &x175, x173, x150, x165);</span> <span class="line" id="L752"> <span class="tok-kw">var</span> x176: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L753"> <span class="tok-kw">var</span> x177: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L754"> addcarryxU64(&x176, &x177, x175, x152, x167);</span> <span class="line" id="L755"> <span class="tok-kw">var</span> x178: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L756"> <span class="tok-kw">var</span> x179: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L757"> mulxU64(&x178, &x179, x168, <span class="tok-number">0xccd1c8aaee00bc4f</span>);</span> <span class="line" id="L758"> <span class="tok-kw">var</span> x180: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L759"> <span class="tok-kw">var</span> x181: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L760"> mulxU64(&x180, &x181, x178, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L761"> <span class="tok-kw">var</span> x182: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L762"> <span class="tok-kw">var</span> x183: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L763"> mulxU64(&x182, &x183, x178, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L764"> <span class="tok-kw">var</span> x184: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L765"> <span class="tok-kw">var</span> x185: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L766"> mulxU64(&x184, &x185, x178, <span class="tok-number">0xbce6faada7179e84</span>);</span> <span class="line" id="L767"> <span class="tok-kw">var</span> x186: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L768"> <span class="tok-kw">var</span> x187: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L769"> mulxU64(&x186, &x187, x178, <span class="tok-number">0xf3b9cac2fc632551</span>);</span> <span class="line" id="L770"> <span class="tok-kw">var</span> x188: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L771"> <span class="tok-kw">var</span> x189: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L772"> addcarryxU64(&x188, &x189, <span class="tok-number">0x0</span>, x187, x184);</span> <span class="line" id="L773"> <span class="tok-kw">var</span> x190: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L774"> <span class="tok-kw">var</span> x191: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L775"> addcarryxU64(&x190, &x191, x189, x185, x182);</span> <span class="line" id="L776"> <span class="tok-kw">var</span> x192: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L777"> <span class="tok-kw">var</span> x193: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L778"> addcarryxU64(&x192, &x193, x191, x183, x180);</span> <span class="line" id="L779"> <span class="tok-kw">const</span> x194 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x193) + x181);</span> <span class="line" id="L780"> <span class="tok-kw">var</span> x195: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L781"> <span class="tok-kw">var</span> x196: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L782"> addcarryxU64(&x195, &x196, <span class="tok-number">0x0</span>, x168, x186);</span> <span class="line" id="L783"> <span class="tok-kw">var</span> x197: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L784"> <span class="tok-kw">var</span> x198: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L785"> addcarryxU64(&x197, &x198, x196, x170, x188);</span> <span class="line" id="L786"> <span class="tok-kw">var</span> x199: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L787"> <span class="tok-kw">var</span> x200: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L788"> addcarryxU64(&x199, &x200, x198, x172, x190);</span> <span class="line" id="L789"> <span class="tok-kw">var</span> x201: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L790"> <span class="tok-kw">var</span> x202: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L791"> addcarryxU64(&x201, &x202, x200, x174, x192);</span> <span class="line" id="L792"> <span class="tok-kw">var</span> x203: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L793"> <span class="tok-kw">var</span> x204: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L794"> addcarryxU64(&x203, &x204, x202, x176, x194);</span> <span class="line" id="L795"> <span class="tok-kw">const</span> x205 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x204) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x177));</span> <span class="line" id="L796"> <span class="tok-kw">var</span> x206: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L797"> <span class="tok-kw">var</span> x207: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L798"> subborrowxU64(&x206, &x207, <span class="tok-number">0x0</span>, x197, <span class="tok-number">0xf3b9cac2fc632551</span>);</span> <span class="line" id="L799"> <span class="tok-kw">var</span> x208: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L800"> <span class="tok-kw">var</span> x209: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L801"> subborrowxU64(&x208, &x209, x207, x199, <span class="tok-number">0xbce6faada7179e84</span>);</span> <span class="line" id="L802"> <span class="tok-kw">var</span> x210: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L803"> <span class="tok-kw">var</span> x211: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L804"> subborrowxU64(&x210, &x211, x209, x201, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L805"> <span class="tok-kw">var</span> x212: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L806"> <span class="tok-kw">var</span> x213: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L807"> subborrowxU64(&x212, &x213, x211, x203, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L808"> <span class="tok-kw">var</span> x214: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L809"> <span class="tok-kw">var</span> x215: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L810"> subborrowxU64(&x214, &x215, x213, x205, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>));</span> <span class="line" id="L811"> <span class="tok-kw">var</span> x216: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L812"> cmovznzU64(&x216, x215, x206, x197);</span> <span class="line" id="L813"> <span class="tok-kw">var</span> x217: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L814"> cmovznzU64(&x217, x215, x208, x199);</span> <span class="line" id="L815"> <span class="tok-kw">var</span> x218: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L816"> cmovznzU64(&x218, x215, x210, x201);</span> <span class="line" id="L817"> <span class="tok-kw">var</span> x219: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L818"> cmovznzU64(&x219, x215, x212, x203);</span> <span class="line" id="L819"> out1[<span class="tok-number">0</span>] = x216;</span> <span class="line" id="L820"> out1[<span class="tok-number">1</span>] = x217;</span> <span class="line" id="L821"> out1[<span class="tok-number">2</span>] = x218;</span> <span class="line" id="L822"> out1[<span class="tok-number">3</span>] = x219;</span> <span class="line" id="L823">}</span> <span class="line" id="L824"></span> <span class="line" id="L825"><span class="tok-comment">/// The function add adds two field elements in the Montgomery domain.</span></span> <span class="line" id="L826"><span class="tok-comment">///</span></span> <span class="line" id="L827"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L828"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L829"><span class="tok-comment">/// 0 ≤ eval arg2 < m</span></span> <span class="line" id="L830"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L831"><span class="tok-comment">/// eval (from_montgomery out1) mod m = (eval (from_montgomery arg1) + eval (from_montgomery arg2)) mod m</span></span> <span class="line" id="L832"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L833"><span class="tok-comment">///</span></span> <span class="line" id="L834"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">add</span>(out1: MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldElement, arg2: MontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L835"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L836"></span> <span class="line" id="L837"> <span class="tok-kw">var</span> x1: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L838"> <span class="tok-kw">var</span> x2: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L839"> addcarryxU64(&x1, &x2, <span class="tok-number">0x0</span>, (arg1[<span class="tok-number">0</span>]), (arg2[<span class="tok-number">0</span>]));</span> <span class="line" id="L840"> <span class="tok-kw">var</span> x3: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L841"> <span class="tok-kw">var</span> x4: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L842"> addcarryxU64(&x3, &x4, x2, (arg1[<span class="tok-number">1</span>]), (arg2[<span class="tok-number">1</span>]));</span> <span class="line" id="L843"> <span class="tok-kw">var</span> x5: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L844"> <span class="tok-kw">var</span> x6: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L845"> addcarryxU64(&x5, &x6, x4, (arg1[<span class="tok-number">2</span>]), (arg2[<span class="tok-number">2</span>]));</span> <span class="line" id="L846"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L847"> <span class="tok-kw">var</span> x8: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L848"> addcarryxU64(&x7, &x8, x6, (arg1[<span class="tok-number">3</span>]), (arg2[<span class="tok-number">3</span>]));</span> <span class="line" id="L849"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L850"> <span class="tok-kw">var</span> x10: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L851"> subborrowxU64(&x9, &x10, <span class="tok-number">0x0</span>, x1, <span class="tok-number">0xf3b9cac2fc632551</span>);</span> <span class="line" id="L852"> <span class="tok-kw">var</span> x11: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L853"> <span class="tok-kw">var</span> x12: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L854"> subborrowxU64(&x11, &x12, x10, x3, <span class="tok-number">0xbce6faada7179e84</span>);</span> <span class="line" id="L855"> <span class="tok-kw">var</span> x13: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L856"> <span class="tok-kw">var</span> x14: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L857"> subborrowxU64(&x13, &x14, x12, x5, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L858"> <span class="tok-kw">var</span> x15: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L859"> <span class="tok-kw">var</span> x16: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L860"> subborrowxU64(&x15, &x16, x14, x7, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L861"> <span class="tok-kw">var</span> x17: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L862"> <span class="tok-kw">var</span> x18: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L863"> subborrowxU64(&x17, &x18, x16, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x8), <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>));</span> <span class="line" id="L864"> <span class="tok-kw">var</span> x19: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L865"> cmovznzU64(&x19, x18, x9, x1);</span> <span class="line" id="L866"> <span class="tok-kw">var</span> x20: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L867"> cmovznzU64(&x20, x18, x11, x3);</span> <span class="line" id="L868"> <span class="tok-kw">var</span> x21: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L869"> cmovznzU64(&x21, x18, x13, x5);</span> <span class="line" id="L870"> <span class="tok-kw">var</span> x22: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L871"> cmovznzU64(&x22, x18, x15, x7);</span> <span class="line" id="L872"> out1[<span class="tok-number">0</span>] = x19;</span> <span class="line" id="L873"> out1[<span class="tok-number">1</span>] = x20;</span> <span class="line" id="L874"> out1[<span class="tok-number">2</span>] = x21;</span> <span class="line" id="L875"> out1[<span class="tok-number">3</span>] = x22;</span> <span class="line" id="L876">}</span> <span class="line" id="L877"></span> <span class="line" id="L878"><span class="tok-comment">/// The function sub subtracts two field elements in the Montgomery domain.</span></span> <span class="line" id="L879"><span class="tok-comment">///</span></span> <span class="line" id="L880"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L881"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L882"><span class="tok-comment">/// 0 ≤ eval arg2 < m</span></span> <span class="line" id="L883"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L884"><span class="tok-comment">/// eval (from_montgomery out1) mod m = (eval (from_montgomery arg1) - eval (from_montgomery arg2)) mod m</span></span> <span class="line" id="L885"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L886"><span class="tok-comment">///</span></span> <span class="line" id="L887"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">sub</span>(out1: MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldElement, arg2: MontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L888"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L889"></span> <span class="line" id="L890"> <span class="tok-kw">var</span> x1: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L891"> <span class="tok-kw">var</span> x2: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L892"> subborrowxU64(&x1, &x2, <span class="tok-number">0x0</span>, (arg1[<span class="tok-number">0</span>]), (arg2[<span class="tok-number">0</span>]));</span> <span class="line" id="L893"> <span class="tok-kw">var</span> x3: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L894"> <span class="tok-kw">var</span> x4: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L895"> subborrowxU64(&x3, &x4, x2, (arg1[<span class="tok-number">1</span>]), (arg2[<span class="tok-number">1</span>]));</span> <span class="line" id="L896"> <span class="tok-kw">var</span> x5: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L897"> <span class="tok-kw">var</span> x6: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L898"> subborrowxU64(&x5, &x6, x4, (arg1[<span class="tok-number">2</span>]), (arg2[<span class="tok-number">2</span>]));</span> <span class="line" id="L899"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L900"> <span class="tok-kw">var</span> x8: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L901"> subborrowxU64(&x7, &x8, x6, (arg1[<span class="tok-number">3</span>]), (arg2[<span class="tok-number">3</span>]));</span> <span class="line" id="L902"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L903"> cmovznzU64(&x9, x8, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L904"> <span class="tok-kw">var</span> x10: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L905"> <span class="tok-kw">var</span> x11: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L906"> addcarryxU64(&x10, &x11, <span class="tok-number">0x0</span>, x1, (x9 & <span class="tok-number">0xf3b9cac2fc632551</span>));</span> <span class="line" id="L907"> <span class="tok-kw">var</span> x12: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L908"> <span class="tok-kw">var</span> x13: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L909"> addcarryxU64(&x12, &x13, x11, x3, (x9 & <span class="tok-number">0xbce6faada7179e84</span>));</span> <span class="line" id="L910"> <span class="tok-kw">var</span> x14: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L911"> <span class="tok-kw">var</span> x15: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L912"> addcarryxU64(&x14, &x15, x13, x5, x9);</span> <span class="line" id="L913"> <span class="tok-kw">var</span> x16: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L914"> <span class="tok-kw">var</span> x17: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L915"> addcarryxU64(&x16, &x17, x15, x7, (x9 & <span class="tok-number">0xffffffff00000000</span>));</span> <span class="line" id="L916"> out1[<span class="tok-number">0</span>] = x10;</span> <span class="line" id="L917"> out1[<span class="tok-number">1</span>] = x12;</span> <span class="line" id="L918"> out1[<span class="tok-number">2</span>] = x14;</span> <span class="line" id="L919"> out1[<span class="tok-number">3</span>] = x16;</span> <span class="line" id="L920">}</span> <span class="line" id="L921"></span> <span class="line" id="L922"><span class="tok-comment">/// The function opp negates a field element in the Montgomery domain.</span></span> <span class="line" id="L923"><span class="tok-comment">///</span></span> <span class="line" id="L924"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L925"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L926"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L927"><span class="tok-comment">/// eval (from_montgomery out1) mod m = -eval (from_montgomery arg1) mod m</span></span> <span class="line" id="L928"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L929"><span class="tok-comment">///</span></span> <span class="line" id="L930"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">opp</span>(out1: MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L931"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L932"></span> <span class="line" id="L933"> <span class="tok-kw">var</span> x1: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L934"> <span class="tok-kw">var</span> x2: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L935"> subborrowxU64(&x1, &x2, <span class="tok-number">0x0</span>, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), (arg1[<span class="tok-number">0</span>]));</span> <span class="line" id="L936"> <span class="tok-kw">var</span> x3: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L937"> <span class="tok-kw">var</span> x4: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L938"> subborrowxU64(&x3, &x4, x2, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), (arg1[<span class="tok-number">1</span>]));</span> <span class="line" id="L939"> <span class="tok-kw">var</span> x5: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L940"> <span class="tok-kw">var</span> x6: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L941"> subborrowxU64(&x5, &x6, x4, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), (arg1[<span class="tok-number">2</span>]));</span> <span class="line" id="L942"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L943"> <span class="tok-kw">var</span> x8: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L944"> subborrowxU64(&x7, &x8, x6, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), (arg1[<span class="tok-number">3</span>]));</span> <span class="line" id="L945"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L946"> cmovznzU64(&x9, x8, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L947"> <span class="tok-kw">var</span> x10: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L948"> <span class="tok-kw">var</span> x11: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L949"> addcarryxU64(&x10, &x11, <span class="tok-number">0x0</span>, x1, (x9 & <span class="tok-number">0xf3b9cac2fc632551</span>));</span> <span class="line" id="L950"> <span class="tok-kw">var</span> x12: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L951"> <span class="tok-kw">var</span> x13: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L952"> addcarryxU64(&x12, &x13, x11, x3, (x9 & <span class="tok-number">0xbce6faada7179e84</span>));</span> <span class="line" id="L953"> <span class="tok-kw">var</span> x14: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L954"> <span class="tok-kw">var</span> x15: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L955"> addcarryxU64(&x14, &x15, x13, x5, x9);</span> <span class="line" id="L956"> <span class="tok-kw">var</span> x16: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L957"> <span class="tok-kw">var</span> x17: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L958"> addcarryxU64(&x16, &x17, x15, x7, (x9 & <span class="tok-number">0xffffffff00000000</span>));</span> <span class="line" id="L959"> out1[<span class="tok-number">0</span>] = x10;</span> <span class="line" id="L960"> out1[<span class="tok-number">1</span>] = x12;</span> <span class="line" id="L961"> out1[<span class="tok-number">2</span>] = x14;</span> <span class="line" id="L962"> out1[<span class="tok-number">3</span>] = x16;</span> <span class="line" id="L963">}</span> <span class="line" id="L964"></span> <span class="line" id="L965"><span class="tok-comment">/// The function fromMontgomery translates a field element out of the Montgomery domain.</span></span> <span class="line" id="L966"><span class="tok-comment">///</span></span> <span class="line" id="L967"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L968"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L969"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L970"><span class="tok-comment">/// eval out1 mod m = (eval arg1 * ((2^64)⁻¹ mod m)^4) mod m</span></span> <span class="line" id="L971"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L972"><span class="tok-comment">///</span></span> <span class="line" id="L973"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromMontgomery</span>(out1: NonMontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L974"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L975"></span> <span class="line" id="L976"> <span class="tok-kw">const</span> x1 = (arg1[<span class="tok-number">0</span>]);</span> <span class="line" id="L977"> <span class="tok-kw">var</span> x2: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L978"> <span class="tok-kw">var</span> x3: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L979"> mulxU64(&x2, &x3, x1, <span class="tok-number">0xccd1c8aaee00bc4f</span>);</span> <span class="line" id="L980"> <span class="tok-kw">var</span> x4: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L981"> <span class="tok-kw">var</span> x5: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L982"> mulxU64(&x4, &x5, x2, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L983"> <span class="tok-kw">var</span> x6: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L984"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L985"> mulxU64(&x6, &x7, x2, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L986"> <span class="tok-kw">var</span> x8: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L987"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L988"> mulxU64(&x8, &x9, x2, <span class="tok-number">0xbce6faada7179e84</span>);</span> <span class="line" id="L989"> <span class="tok-kw">var</span> x10: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L990"> <span class="tok-kw">var</span> x11: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L991"> mulxU64(&x10, &x11, x2, <span class="tok-number">0xf3b9cac2fc632551</span>);</span> <span class="line" id="L992"> <span class="tok-kw">var</span> x12: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L993"> <span class="tok-kw">var</span> x13: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L994"> addcarryxU64(&x12, &x13, <span class="tok-number">0x0</span>, x11, x8);</span> <span class="line" id="L995"> <span class="tok-kw">var</span> x14: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L996"> <span class="tok-kw">var</span> x15: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L997"> addcarryxU64(&x14, &x15, x13, x9, x6);</span> <span class="line" id="L998"> <span class="tok-kw">var</span> x16: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L999"> <span class="tok-kw">var</span> x17: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1000"> addcarryxU64(&x16, &x17, x15, x7, x4);</span> <span class="line" id="L1001"> <span class="tok-kw">var</span> x18: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1002"> <span class="tok-kw">var</span> x19: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1003"> addcarryxU64(&x18, &x19, <span class="tok-number">0x0</span>, x1, x10);</span> <span class="line" id="L1004"> <span class="tok-kw">var</span> x20: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1005"> <span class="tok-kw">var</span> x21: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1006"> addcarryxU64(&x20, &x21, x19, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), x12);</span> <span class="line" id="L1007"> <span class="tok-kw">var</span> x22: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1008"> <span class="tok-kw">var</span> x23: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1009"> addcarryxU64(&x22, &x23, x21, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), x14);</span> <span class="line" id="L1010"> <span class="tok-kw">var</span> x24: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1011"> <span class="tok-kw">var</span> x25: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1012"> addcarryxU64(&x24, &x25, x23, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), x16);</span> <span class="line" id="L1013"> <span class="tok-kw">var</span> x26: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1014"> <span class="tok-kw">var</span> x27: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1015"> addcarryxU64(&x26, &x27, <span class="tok-number">0x0</span>, x20, (arg1[<span class="tok-number">1</span>]));</span> <span class="line" id="L1016"> <span class="tok-kw">var</span> x28: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1017"> <span class="tok-kw">var</span> x29: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1018"> addcarryxU64(&x28, &x29, x27, x22, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>));</span> <span class="line" id="L1019"> <span class="tok-kw">var</span> x30: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1020"> <span class="tok-kw">var</span> x31: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1021"> addcarryxU64(&x30, &x31, x29, x24, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>));</span> <span class="line" id="L1022"> <span class="tok-kw">var</span> x32: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1023"> <span class="tok-kw">var</span> x33: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1024"> mulxU64(&x32, &x33, x26, <span class="tok-number">0xccd1c8aaee00bc4f</span>);</span> <span class="line" id="L1025"> <span class="tok-kw">var</span> x34: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1026"> <span class="tok-kw">var</span> x35: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1027"> mulxU64(&x34, &x35, x32, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L1028"> <span class="tok-kw">var</span> x36: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1029"> <span class="tok-kw">var</span> x37: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1030"> mulxU64(&x36, &x37, x32, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1031"> <span class="tok-kw">var</span> x38: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1032"> <span class="tok-kw">var</span> x39: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1033"> mulxU64(&x38, &x39, x32, <span class="tok-number">0xbce6faada7179e84</span>);</span> <span class="line" id="L1034"> <span class="tok-kw">var</span> x40: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1035"> <span class="tok-kw">var</span> x41: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1036"> mulxU64(&x40, &x41, x32, <span class="tok-number">0xf3b9cac2fc632551</span>);</span> <span class="line" id="L1037"> <span class="tok-kw">var</span> x42: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1038"> <span class="tok-kw">var</span> x43: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1039"> addcarryxU64(&x42, &x43, <span class="tok-number">0x0</span>, x41, x38);</span> <span class="line" id="L1040"> <span class="tok-kw">var</span> x44: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1041"> <span class="tok-kw">var</span> x45: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1042"> addcarryxU64(&x44, &x45, x43, x39, x36);</span> <span class="line" id="L1043"> <span class="tok-kw">var</span> x46: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1044"> <span class="tok-kw">var</span> x47: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1045"> addcarryxU64(&x46, &x47, x45, x37, x34);</span> <span class="line" id="L1046"> <span class="tok-kw">var</span> x48: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1047"> <span class="tok-kw">var</span> x49: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1048"> addcarryxU64(&x48, &x49, <span class="tok-number">0x0</span>, x26, x40);</span> <span class="line" id="L1049"> <span class="tok-kw">var</span> x50: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1050"> <span class="tok-kw">var</span> x51: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1051"> addcarryxU64(&x50, &x51, x49, x28, x42);</span> <span class="line" id="L1052"> <span class="tok-kw">var</span> x52: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1053"> <span class="tok-kw">var</span> x53: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1054"> addcarryxU64(&x52, &x53, x51, x30, x44);</span> <span class="line" id="L1055"> <span class="tok-kw">var</span> x54: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1056"> <span class="tok-kw">var</span> x55: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1057"> addcarryxU64(&x54, &x55, x53, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x31) + (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x25) + (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x17) + x5))), x46);</span> <span class="line" id="L1058"> <span class="tok-kw">var</span> x56: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1059"> <span class="tok-kw">var</span> x57: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1060"> addcarryxU64(&x56, &x57, <span class="tok-number">0x0</span>, x50, (arg1[<span class="tok-number">2</span>]));</span> <span class="line" id="L1061"> <span class="tok-kw">var</span> x58: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1062"> <span class="tok-kw">var</span> x59: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1063"> addcarryxU64(&x58, &x59, x57, x52, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>));</span> <span class="line" id="L1064"> <span class="tok-kw">var</span> x60: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1065"> <span class="tok-kw">var</span> x61: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1066"> addcarryxU64(&x60, &x61, x59, x54, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>));</span> <span class="line" id="L1067"> <span class="tok-kw">var</span> x62: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1068"> <span class="tok-kw">var</span> x63: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1069"> mulxU64(&x62, &x63, x56, <span class="tok-number">0xccd1c8aaee00bc4f</span>);</span> <span class="line" id="L1070"> <span class="tok-kw">var</span> x64: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1071"> <span class="tok-kw">var</span> x65: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1072"> mulxU64(&x64, &x65, x62, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L1073"> <span class="tok-kw">var</span> x66: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1074"> <span class="tok-kw">var</span> x67: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1075"> mulxU64(&x66, &x67, x62, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1076"> <span class="tok-kw">var</span> x68: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1077"> <span class="tok-kw">var</span> x69: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1078"> mulxU64(&x68, &x69, x62, <span class="tok-number">0xbce6faada7179e84</span>);</span> <span class="line" id="L1079"> <span class="tok-kw">var</span> x70: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1080"> <span class="tok-kw">var</span> x71: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1081"> mulxU64(&x70, &x71, x62, <span class="tok-number">0xf3b9cac2fc632551</span>);</span> <span class="line" id="L1082"> <span class="tok-kw">var</span> x72: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1083"> <span class="tok-kw">var</span> x73: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1084"> addcarryxU64(&x72, &x73, <span class="tok-number">0x0</span>, x71, x68);</span> <span class="line" id="L1085"> <span class="tok-kw">var</span> x74: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1086"> <span class="tok-kw">var</span> x75: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1087"> addcarryxU64(&x74, &x75, x73, x69, x66);</span> <span class="line" id="L1088"> <span class="tok-kw">var</span> x76: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1089"> <span class="tok-kw">var</span> x77: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1090"> addcarryxU64(&x76, &x77, x75, x67, x64);</span> <span class="line" id="L1091"> <span class="tok-kw">var</span> x78: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1092"> <span class="tok-kw">var</span> x79: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1093"> addcarryxU64(&x78, &x79, <span class="tok-number">0x0</span>, x56, x70);</span> <span class="line" id="L1094"> <span class="tok-kw">var</span> x80: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1095"> <span class="tok-kw">var</span> x81: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1096"> addcarryxU64(&x80, &x81, x79, x58, x72);</span> <span class="line" id="L1097"> <span class="tok-kw">var</span> x82: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1098"> <span class="tok-kw">var</span> x83: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1099"> addcarryxU64(&x82, &x83, x81, x60, x74);</span> <span class="line" id="L1100"> <span class="tok-kw">var</span> x84: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1101"> <span class="tok-kw">var</span> x85: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1102"> addcarryxU64(&x84, &x85, x83, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x61) + (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x55) + (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x47) + x35))), x76);</span> <span class="line" id="L1103"> <span class="tok-kw">var</span> x86: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1104"> <span class="tok-kw">var</span> x87: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1105"> addcarryxU64(&x86, &x87, <span class="tok-number">0x0</span>, x80, (arg1[<span class="tok-number">3</span>]));</span> <span class="line" id="L1106"> <span class="tok-kw">var</span> x88: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1107"> <span class="tok-kw">var</span> x89: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1108"> addcarryxU64(&x88, &x89, x87, x82, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>));</span> <span class="line" id="L1109"> <span class="tok-kw">var</span> x90: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1110"> <span class="tok-kw">var</span> x91: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1111"> addcarryxU64(&x90, &x91, x89, x84, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>));</span> <span class="line" id="L1112"> <span class="tok-kw">var</span> x92: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1113"> <span class="tok-kw">var</span> x93: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1114"> mulxU64(&x92, &x93, x86, <span class="tok-number">0xccd1c8aaee00bc4f</span>);</span> <span class="line" id="L1115"> <span class="tok-kw">var</span> x94: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1116"> <span class="tok-kw">var</span> x95: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1117"> mulxU64(&x94, &x95, x92, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L1118"> <span class="tok-kw">var</span> x96: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1119"> <span class="tok-kw">var</span> x97: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1120"> mulxU64(&x96, &x97, x92, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1121"> <span class="tok-kw">var</span> x98: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1122"> <span class="tok-kw">var</span> x99: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1123"> mulxU64(&x98, &x99, x92, <span class="tok-number">0xbce6faada7179e84</span>);</span> <span class="line" id="L1124"> <span class="tok-kw">var</span> x100: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1125"> <span class="tok-kw">var</span> x101: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1126"> mulxU64(&x100, &x101, x92, <span class="tok-number">0xf3b9cac2fc632551</span>);</span> <span class="line" id="L1127"> <span class="tok-kw">var</span> x102: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1128"> <span class="tok-kw">var</span> x103: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1129"> addcarryxU64(&x102, &x103, <span class="tok-number">0x0</span>, x101, x98);</span> <span class="line" id="L1130"> <span class="tok-kw">var</span> x104: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1131"> <span class="tok-kw">var</span> x105: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1132"> addcarryxU64(&x104, &x105, x103, x99, x96);</span> <span class="line" id="L1133"> <span class="tok-kw">var</span> x106: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1134"> <span class="tok-kw">var</span> x107: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1135"> addcarryxU64(&x106, &x107, x105, x97, x94);</span> <span class="line" id="L1136"> <span class="tok-kw">var</span> x108: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1137"> <span class="tok-kw">var</span> x109: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1138"> addcarryxU64(&x108, &x109, <span class="tok-number">0x0</span>, x86, x100);</span> <span class="line" id="L1139"> <span class="tok-kw">var</span> x110: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1140"> <span class="tok-kw">var</span> x111: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1141"> addcarryxU64(&x110, &x111, x109, x88, x102);</span> <span class="line" id="L1142"> <span class="tok-kw">var</span> x112: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1143"> <span class="tok-kw">var</span> x113: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1144"> addcarryxU64(&x112, &x113, x111, x90, x104);</span> <span class="line" id="L1145"> <span class="tok-kw">var</span> x114: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1146"> <span class="tok-kw">var</span> x115: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1147"> addcarryxU64(&x114, &x115, x113, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x91) + (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x85) + (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x77) + x65))), x106);</span> <span class="line" id="L1148"> <span class="tok-kw">const</span> x116 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x115) + (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x107) + x95));</span> <span class="line" id="L1149"> <span class="tok-kw">var</span> x117: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1150"> <span class="tok-kw">var</span> x118: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1151"> subborrowxU64(&x117, &x118, <span class="tok-number">0x0</span>, x110, <span class="tok-number">0xf3b9cac2fc632551</span>);</span> <span class="line" id="L1152"> <span class="tok-kw">var</span> x119: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1153"> <span class="tok-kw">var</span> x120: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1154"> subborrowxU64(&x119, &x120, x118, x112, <span class="tok-number">0xbce6faada7179e84</span>);</span> <span class="line" id="L1155"> <span class="tok-kw">var</span> x121: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1156"> <span class="tok-kw">var</span> x122: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1157"> subborrowxU64(&x121, &x122, x120, x114, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1158"> <span class="tok-kw">var</span> x123: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1159"> <span class="tok-kw">var</span> x124: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1160"> subborrowxU64(&x123, &x124, x122, x116, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L1161"> <span class="tok-kw">var</span> x125: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1162"> <span class="tok-kw">var</span> x126: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1163"> subborrowxU64(&x125, &x126, x124, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>));</span> <span class="line" id="L1164"> <span class="tok-kw">var</span> x127: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1165"> cmovznzU64(&x127, x126, x117, x110);</span> <span class="line" id="L1166"> <span class="tok-kw">var</span> x128: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1167"> cmovznzU64(&x128, x126, x119, x112);</span> <span class="line" id="L1168"> <span class="tok-kw">var</span> x129: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1169"> cmovznzU64(&x129, x126, x121, x114);</span> <span class="line" id="L1170"> <span class="tok-kw">var</span> x130: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1171"> cmovznzU64(&x130, x126, x123, x116);</span> <span class="line" id="L1172"> out1[<span class="tok-number">0</span>] = x127;</span> <span class="line" id="L1173"> out1[<span class="tok-number">1</span>] = x128;</span> <span class="line" id="L1174"> out1[<span class="tok-number">2</span>] = x129;</span> <span class="line" id="L1175"> out1[<span class="tok-number">3</span>] = x130;</span> <span class="line" id="L1176">}</span> <span class="line" id="L1177"></span> <span class="line" id="L1178"><span class="tok-comment">/// The function toMontgomery translates a field element into the Montgomery domain.</span></span> <span class="line" id="L1179"><span class="tok-comment">///</span></span> <span class="line" id="L1180"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L1181"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L1182"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L1183"><span class="tok-comment">/// eval (from_montgomery out1) mod m = eval arg1 mod m</span></span> <span class="line" id="L1184"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L1185"><span class="tok-comment">///</span></span> <span class="line" id="L1186"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toMontgomery</span>(out1: MontgomeryDomainFieldElement, arg1: NonMontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L1187"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L1188"></span> <span class="line" id="L1189"> <span class="tok-kw">const</span> x1 = (arg1[<span class="tok-number">1</span>]);</span> <span class="line" id="L1190"> <span class="tok-kw">const</span> x2 = (arg1[<span class="tok-number">2</span>]);</span> <span class="line" id="L1191"> <span class="tok-kw">const</span> x3 = (arg1[<span class="tok-number">3</span>]);</span> <span class="line" id="L1192"> <span class="tok-kw">const</span> x4 = (arg1[<span class="tok-number">0</span>]);</span> <span class="line" id="L1193"> <span class="tok-kw">var</span> x5: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1194"> <span class="tok-kw">var</span> x6: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1195"> mulxU64(&x5, &x6, x4, <span class="tok-number">0x66e12d94f3d95620</span>);</span> <span class="line" id="L1196"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1197"> <span class="tok-kw">var</span> x8: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1198"> mulxU64(&x7, &x8, x4, <span class="tok-number">0x2845b2392b6bec59</span>);</span> <span class="line" id="L1199"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1200"> <span class="tok-kw">var</span> x10: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1201"> mulxU64(&x9, &x10, x4, <span class="tok-number">0x4699799c49bd6fa6</span>);</span> <span class="line" id="L1202"> <span class="tok-kw">var</span> x11: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1203"> <span class="tok-kw">var</span> x12: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1204"> mulxU64(&x11, &x12, x4, <span class="tok-number">0x83244c95be79eea2</span>);</span> <span class="line" id="L1205"> <span class="tok-kw">var</span> x13: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1206"> <span class="tok-kw">var</span> x14: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1207"> addcarryxU64(&x13, &x14, <span class="tok-number">0x0</span>, x12, x9);</span> <span class="line" id="L1208"> <span class="tok-kw">var</span> x15: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1209"> <span class="tok-kw">var</span> x16: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1210"> addcarryxU64(&x15, &x16, x14, x10, x7);</span> <span class="line" id="L1211"> <span class="tok-kw">var</span> x17: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1212"> <span class="tok-kw">var</span> x18: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1213"> addcarryxU64(&x17, &x18, x16, x8, x5);</span> <span class="line" id="L1214"> <span class="tok-kw">var</span> x19: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1215"> <span class="tok-kw">var</span> x20: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1216"> mulxU64(&x19, &x20, x11, <span class="tok-number">0xccd1c8aaee00bc4f</span>);</span> <span class="line" id="L1217"> <span class="tok-kw">var</span> x21: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1218"> <span class="tok-kw">var</span> x22: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1219"> mulxU64(&x21, &x22, x19, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L1220"> <span class="tok-kw">var</span> x23: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1221"> <span class="tok-kw">var</span> x24: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1222"> mulxU64(&x23, &x24, x19, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1223"> <span class="tok-kw">var</span> x25: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1224"> <span class="tok-kw">var</span> x26: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1225"> mulxU64(&x25, &x26, x19, <span class="tok-number">0xbce6faada7179e84</span>);</span> <span class="line" id="L1226"> <span class="tok-kw">var</span> x27: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1227"> <span class="tok-kw">var</span> x28: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1228"> mulxU64(&x27, &x28, x19, <span class="tok-number">0xf3b9cac2fc632551</span>);</span> <span class="line" id="L1229"> <span class="tok-kw">var</span> x29: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1230"> <span class="tok-kw">var</span> x30: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1231"> addcarryxU64(&x29, &x30, <span class="tok-number">0x0</span>, x28, x25);</span> <span class="line" id="L1232"> <span class="tok-kw">var</span> x31: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1233"> <span class="tok-kw">var</span> x32: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1234"> addcarryxU64(&x31, &x32, x30, x26, x23);</span> <span class="line" id="L1235"> <span class="tok-kw">var</span> x33: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1236"> <span class="tok-kw">var</span> x34: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1237"> addcarryxU64(&x33, &x34, x32, x24, x21);</span> <span class="line" id="L1238"> <span class="tok-kw">var</span> x35: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1239"> <span class="tok-kw">var</span> x36: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1240"> addcarryxU64(&x35, &x36, <span class="tok-number">0x0</span>, x11, x27);</span> <span class="line" id="L1241"> <span class="tok-kw">var</span> x37: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1242"> <span class="tok-kw">var</span> x38: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1243"> addcarryxU64(&x37, &x38, x36, x13, x29);</span> <span class="line" id="L1244"> <span class="tok-kw">var</span> x39: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1245"> <span class="tok-kw">var</span> x40: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1246"> addcarryxU64(&x39, &x40, x38, x15, x31);</span> <span class="line" id="L1247"> <span class="tok-kw">var</span> x41: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1248"> <span class="tok-kw">var</span> x42: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1249"> addcarryxU64(&x41, &x42, x40, x17, x33);</span> <span class="line" id="L1250"> <span class="tok-kw">var</span> x43: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1251"> <span class="tok-kw">var</span> x44: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1252"> addcarryxU64(&x43, &x44, x42, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x18) + x6), (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x34) + x22));</span> <span class="line" id="L1253"> <span class="tok-kw">var</span> x45: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1254"> <span class="tok-kw">var</span> x46: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1255"> mulxU64(&x45, &x46, x1, <span class="tok-number">0x66e12d94f3d95620</span>);</span> <span class="line" id="L1256"> <span class="tok-kw">var</span> x47: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1257"> <span class="tok-kw">var</span> x48: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1258"> mulxU64(&x47, &x48, x1, <span class="tok-number">0x2845b2392b6bec59</span>);</span> <span class="line" id="L1259"> <span class="tok-kw">var</span> x49: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1260"> <span class="tok-kw">var</span> x50: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1261"> mulxU64(&x49, &x50, x1, <span class="tok-number">0x4699799c49bd6fa6</span>);</span> <span class="line" id="L1262"> <span class="tok-kw">var</span> x51: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1263"> <span class="tok-kw">var</span> x52: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1264"> mulxU64(&x51, &x52, x1, <span class="tok-number">0x83244c95be79eea2</span>);</span> <span class="line" id="L1265"> <span class="tok-kw">var</span> x53: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1266"> <span class="tok-kw">var</span> x54: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1267"> addcarryxU64(&x53, &x54, <span class="tok-number">0x0</span>, x52, x49);</span> <span class="line" id="L1268"> <span class="tok-kw">var</span> x55: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1269"> <span class="tok-kw">var</span> x56: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1270"> addcarryxU64(&x55, &x56, x54, x50, x47);</span> <span class="line" id="L1271"> <span class="tok-kw">var</span> x57: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1272"> <span class="tok-kw">var</span> x58: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1273"> addcarryxU64(&x57, &x58, x56, x48, x45);</span> <span class="line" id="L1274"> <span class="tok-kw">var</span> x59: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1275"> <span class="tok-kw">var</span> x60: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1276"> addcarryxU64(&x59, &x60, <span class="tok-number">0x0</span>, x37, x51);</span> <span class="line" id="L1277"> <span class="tok-kw">var</span> x61: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1278"> <span class="tok-kw">var</span> x62: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1279"> addcarryxU64(&x61, &x62, x60, x39, x53);</span> <span class="line" id="L1280"> <span class="tok-kw">var</span> x63: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1281"> <span class="tok-kw">var</span> x64: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1282"> addcarryxU64(&x63, &x64, x62, x41, x55);</span> <span class="line" id="L1283"> <span class="tok-kw">var</span> x65: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1284"> <span class="tok-kw">var</span> x66: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1285"> addcarryxU64(&x65, &x66, x64, x43, x57);</span> <span class="line" id="L1286"> <span class="tok-kw">var</span> x67: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1287"> <span class="tok-kw">var</span> x68: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1288"> mulxU64(&x67, &x68, x59, <span class="tok-number">0xccd1c8aaee00bc4f</span>);</span> <span class="line" id="L1289"> <span class="tok-kw">var</span> x69: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1290"> <span class="tok-kw">var</span> x70: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1291"> mulxU64(&x69, &x70, x67, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L1292"> <span class="tok-kw">var</span> x71: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1293"> <span class="tok-kw">var</span> x72: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1294"> mulxU64(&x71, &x72, x67, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1295"> <span class="tok-kw">var</span> x73: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1296"> <span class="tok-kw">var</span> x74: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1297"> mulxU64(&x73, &x74, x67, <span class="tok-number">0xbce6faada7179e84</span>);</span> <span class="line" id="L1298"> <span class="tok-kw">var</span> x75: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1299"> <span class="tok-kw">var</span> x76: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1300"> mulxU64(&x75, &x76, x67, <span class="tok-number">0xf3b9cac2fc632551</span>);</span> <span class="line" id="L1301"> <span class="tok-kw">var</span> x77: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1302"> <span class="tok-kw">var</span> x78: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1303"> addcarryxU64(&x77, &x78, <span class="tok-number">0x0</span>, x76, x73);</span> <span class="line" id="L1304"> <span class="tok-kw">var</span> x79: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1305"> <span class="tok-kw">var</span> x80: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1306"> addcarryxU64(&x79, &x80, x78, x74, x71);</span> <span class="line" id="L1307"> <span class="tok-kw">var</span> x81: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1308"> <span class="tok-kw">var</span> x82: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1309"> addcarryxU64(&x81, &x82, x80, x72, x69);</span> <span class="line" id="L1310"> <span class="tok-kw">var</span> x83: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1311"> <span class="tok-kw">var</span> x84: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1312"> addcarryxU64(&x83, &x84, <span class="tok-number">0x0</span>, x59, x75);</span> <span class="line" id="L1313"> <span class="tok-kw">var</span> x85: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1314"> <span class="tok-kw">var</span> x86: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1315"> addcarryxU64(&x85, &x86, x84, x61, x77);</span> <span class="line" id="L1316"> <span class="tok-kw">var</span> x87: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1317"> <span class="tok-kw">var</span> x88: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1318"> addcarryxU64(&x87, &x88, x86, x63, x79);</span> <span class="line" id="L1319"> <span class="tok-kw">var</span> x89: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1320"> <span class="tok-kw">var</span> x90: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1321"> addcarryxU64(&x89, &x90, x88, x65, x81);</span> <span class="line" id="L1322"> <span class="tok-kw">var</span> x91: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1323"> <span class="tok-kw">var</span> x92: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1324"> addcarryxU64(&x91, &x92, x90, ((<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x66) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x44)) + (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x58) + x46)), (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x82) + x70));</span> <span class="line" id="L1325"> <span class="tok-kw">var</span> x93: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1326"> <span class="tok-kw">var</span> x94: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1327"> mulxU64(&x93, &x94, x2, <span class="tok-number">0x66e12d94f3d95620</span>);</span> <span class="line" id="L1328"> <span class="tok-kw">var</span> x95: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1329"> <span class="tok-kw">var</span> x96: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1330"> mulxU64(&x95, &x96, x2, <span class="tok-number">0x2845b2392b6bec59</span>);</span> <span class="line" id="L1331"> <span class="tok-kw">var</span> x97: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1332"> <span class="tok-kw">var</span> x98: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1333"> mulxU64(&x97, &x98, x2, <span class="tok-number">0x4699799c49bd6fa6</span>);</span> <span class="line" id="L1334"> <span class="tok-kw">var</span> x99: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1335"> <span class="tok-kw">var</span> x100: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1336"> mulxU64(&x99, &x100, x2, <span class="tok-number">0x83244c95be79eea2</span>);</span> <span class="line" id="L1337"> <span class="tok-kw">var</span> x101: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1338"> <span class="tok-kw">var</span> x102: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1339"> addcarryxU64(&x101, &x102, <span class="tok-number">0x0</span>, x100, x97);</span> <span class="line" id="L1340"> <span class="tok-kw">var</span> x103: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1341"> <span class="tok-kw">var</span> x104: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1342"> addcarryxU64(&x103, &x104, x102, x98, x95);</span> <span class="line" id="L1343"> <span class="tok-kw">var</span> x105: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1344"> <span class="tok-kw">var</span> x106: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1345"> addcarryxU64(&x105, &x106, x104, x96, x93);</span> <span class="line" id="L1346"> <span class="tok-kw">var</span> x107: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1347"> <span class="tok-kw">var</span> x108: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1348"> addcarryxU64(&x107, &x108, <span class="tok-number">0x0</span>, x85, x99);</span> <span class="line" id="L1349"> <span class="tok-kw">var</span> x109: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1350"> <span class="tok-kw">var</span> x110: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1351"> addcarryxU64(&x109, &x110, x108, x87, x101);</span> <span class="line" id="L1352"> <span class="tok-kw">var</span> x111: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1353"> <span class="tok-kw">var</span> x112: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1354"> addcarryxU64(&x111, &x112, x110, x89, x103);</span> <span class="line" id="L1355"> <span class="tok-kw">var</span> x113: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1356"> <span class="tok-kw">var</span> x114: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1357"> addcarryxU64(&x113, &x114, x112, x91, x105);</span> <span class="line" id="L1358"> <span class="tok-kw">var</span> x115: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1359"> <span class="tok-kw">var</span> x116: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1360"> mulxU64(&x115, &x116, x107, <span class="tok-number">0xccd1c8aaee00bc4f</span>);</span> <span class="line" id="L1361"> <span class="tok-kw">var</span> x117: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1362"> <span class="tok-kw">var</span> x118: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1363"> mulxU64(&x117, &x118, x115, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L1364"> <span class="tok-kw">var</span> x119: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1365"> <span class="tok-kw">var</span> x120: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1366"> mulxU64(&x119, &x120, x115, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1367"> <span class="tok-kw">var</span> x121: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1368"> <span class="tok-kw">var</span> x122: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1369"> mulxU64(&x121, &x122, x115, <span class="tok-number">0xbce6faada7179e84</span>);</span> <span class="line" id="L1370"> <span class="tok-kw">var</span> x123: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1371"> <span class="tok-kw">var</span> x124: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1372"> mulxU64(&x123, &x124, x115, <span class="tok-number">0xf3b9cac2fc632551</span>);</span> <span class="line" id="L1373"> <span class="tok-kw">var</span> x125: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1374"> <span class="tok-kw">var</span> x126: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1375"> addcarryxU64(&x125, &x126, <span class="tok-number">0x0</span>, x124, x121);</span> <span class="line" id="L1376"> <span class="tok-kw">var</span> x127: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1377"> <span class="tok-kw">var</span> x128: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1378"> addcarryxU64(&x127, &x128, x126, x122, x119);</span> <span class="line" id="L1379"> <span class="tok-kw">var</span> x129: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1380"> <span class="tok-kw">var</span> x130: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1381"> addcarryxU64(&x129, &x130, x128, x120, x117);</span> <span class="line" id="L1382"> <span class="tok-kw">var</span> x131: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1383"> <span class="tok-kw">var</span> x132: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1384"> addcarryxU64(&x131, &x132, <span class="tok-number">0x0</span>, x107, x123);</span> <span class="line" id="L1385"> <span class="tok-kw">var</span> x133: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1386"> <span class="tok-kw">var</span> x134: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1387"> addcarryxU64(&x133, &x134, x132, x109, x125);</span> <span class="line" id="L1388"> <span class="tok-kw">var</span> x135: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1389"> <span class="tok-kw">var</span> x136: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1390"> addcarryxU64(&x135, &x136, x134, x111, x127);</span> <span class="line" id="L1391"> <span class="tok-kw">var</span> x137: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1392"> <span class="tok-kw">var</span> x138: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1393"> addcarryxU64(&x137, &x138, x136, x113, x129);</span> <span class="line" id="L1394"> <span class="tok-kw">var</span> x139: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1395"> <span class="tok-kw">var</span> x140: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1396"> addcarryxU64(&x139, &x140, x138, ((<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x114) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x92)) + (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x106) + x94)), (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x130) + x118));</span> <span class="line" id="L1397"> <span class="tok-kw">var</span> x141: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1398"> <span class="tok-kw">var</span> x142: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1399"> mulxU64(&x141, &x142, x3, <span class="tok-number">0x66e12d94f3d95620</span>);</span> <span class="line" id="L1400"> <span class="tok-kw">var</span> x143: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1401"> <span class="tok-kw">var</span> x144: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1402"> mulxU64(&x143, &x144, x3, <span class="tok-number">0x2845b2392b6bec59</span>);</span> <span class="line" id="L1403"> <span class="tok-kw">var</span> x145: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1404"> <span class="tok-kw">var</span> x146: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1405"> mulxU64(&x145, &x146, x3, <span class="tok-number">0x4699799c49bd6fa6</span>);</span> <span class="line" id="L1406"> <span class="tok-kw">var</span> x147: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1407"> <span class="tok-kw">var</span> x148: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1408"> mulxU64(&x147, &x148, x3, <span class="tok-number">0x83244c95be79eea2</span>);</span> <span class="line" id="L1409"> <span class="tok-kw">var</span> x149: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1410"> <span class="tok-kw">var</span> x150: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1411"> addcarryxU64(&x149, &x150, <span class="tok-number">0x0</span>, x148, x145);</span> <span class="line" id="L1412"> <span class="tok-kw">var</span> x151: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1413"> <span class="tok-kw">var</span> x152: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1414"> addcarryxU64(&x151, &x152, x150, x146, x143);</span> <span class="line" id="L1415"> <span class="tok-kw">var</span> x153: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1416"> <span class="tok-kw">var</span> x154: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1417"> addcarryxU64(&x153, &x154, x152, x144, x141);</span> <span class="line" id="L1418"> <span class="tok-kw">var</span> x155: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1419"> <span class="tok-kw">var</span> x156: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1420"> addcarryxU64(&x155, &x156, <span class="tok-number">0x0</span>, x133, x147);</span> <span class="line" id="L1421"> <span class="tok-kw">var</span> x157: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1422"> <span class="tok-kw">var</span> x158: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1423"> addcarryxU64(&x157, &x158, x156, x135, x149);</span> <span class="line" id="L1424"> <span class="tok-kw">var</span> x159: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1425"> <span class="tok-kw">var</span> x160: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1426"> addcarryxU64(&x159, &x160, x158, x137, x151);</span> <span class="line" id="L1427"> <span class="tok-kw">var</span> x161: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1428"> <span class="tok-kw">var</span> x162: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1429"> addcarryxU64(&x161, &x162, x160, x139, x153);</span> <span class="line" id="L1430"> <span class="tok-kw">var</span> x163: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1431"> <span class="tok-kw">var</span> x164: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1432"> mulxU64(&x163, &x164, x155, <span class="tok-number">0xccd1c8aaee00bc4f</span>);</span> <span class="line" id="L1433"> <span class="tok-kw">var</span> x165: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1434"> <span class="tok-kw">var</span> x166: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1435"> mulxU64(&x165, &x166, x163, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L1436"> <span class="tok-kw">var</span> x167: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1437"> <span class="tok-kw">var</span> x168: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1438"> mulxU64(&x167, &x168, x163, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1439"> <span class="tok-kw">var</span> x169: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1440"> <span class="tok-kw">var</span> x170: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1441"> mulxU64(&x169, &x170, x163, <span class="tok-number">0xbce6faada7179e84</span>);</span> <span class="line" id="L1442"> <span class="tok-kw">var</span> x171: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1443"> <span class="tok-kw">var</span> x172: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1444"> mulxU64(&x171, &x172, x163, <span class="tok-number">0xf3b9cac2fc632551</span>);</span> <span class="line" id="L1445"> <span class="tok-kw">var</span> x173: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1446"> <span class="tok-kw">var</span> x174: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1447"> addcarryxU64(&x173, &x174, <span class="tok-number">0x0</span>, x172, x169);</span> <span class="line" id="L1448"> <span class="tok-kw">var</span> x175: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1449"> <span class="tok-kw">var</span> x176: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1450"> addcarryxU64(&x175, &x176, x174, x170, x167);</span> <span class="line" id="L1451"> <span class="tok-kw">var</span> x177: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1452"> <span class="tok-kw">var</span> x178: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1453"> addcarryxU64(&x177, &x178, x176, x168, x165);</span> <span class="line" id="L1454"> <span class="tok-kw">var</span> x179: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1455"> <span class="tok-kw">var</span> x180: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1456"> addcarryxU64(&x179, &x180, <span class="tok-number">0x0</span>, x155, x171);</span> <span class="line" id="L1457"> <span class="tok-kw">var</span> x181: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1458"> <span class="tok-kw">var</span> x182: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1459"> addcarryxU64(&x181, &x182, x180, x157, x173);</span> <span class="line" id="L1460"> <span class="tok-kw">var</span> x183: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1461"> <span class="tok-kw">var</span> x184: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1462"> addcarryxU64(&x183, &x184, x182, x159, x175);</span> <span class="line" id="L1463"> <span class="tok-kw">var</span> x185: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1464"> <span class="tok-kw">var</span> x186: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1465"> addcarryxU64(&x185, &x186, x184, x161, x177);</span> <span class="line" id="L1466"> <span class="tok-kw">var</span> x187: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1467"> <span class="tok-kw">var</span> x188: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1468"> addcarryxU64(&x187, &x188, x186, ((<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x162) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x140)) + (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x154) + x142)), (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x178) + x166));</span> <span class="line" id="L1469"> <span class="tok-kw">var</span> x189: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1470"> <span class="tok-kw">var</span> x190: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1471"> subborrowxU64(&x189, &x190, <span class="tok-number">0x0</span>, x181, <span class="tok-number">0xf3b9cac2fc632551</span>);</span> <span class="line" id="L1472"> <span class="tok-kw">var</span> x191: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1473"> <span class="tok-kw">var</span> x192: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1474"> subborrowxU64(&x191, &x192, x190, x183, <span class="tok-number">0xbce6faada7179e84</span>);</span> <span class="line" id="L1475"> <span class="tok-kw">var</span> x193: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1476"> <span class="tok-kw">var</span> x194: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1477"> subborrowxU64(&x193, &x194, x192, x185, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1478"> <span class="tok-kw">var</span> x195: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1479"> <span class="tok-kw">var</span> x196: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1480"> subborrowxU64(&x195, &x196, x194, x187, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L1481"> <span class="tok-kw">var</span> x197: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1482"> <span class="tok-kw">var</span> x198: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1483"> subborrowxU64(&x197, &x198, x196, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x188), <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>));</span> <span class="line" id="L1484"> <span class="tok-kw">var</span> x199: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1485"> cmovznzU64(&x199, x198, x189, x181);</span> <span class="line" id="L1486"> <span class="tok-kw">var</span> x200: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1487"> cmovznzU64(&x200, x198, x191, x183);</span> <span class="line" id="L1488"> <span class="tok-kw">var</span> x201: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1489"> cmovznzU64(&x201, x198, x193, x185);</span> <span class="line" id="L1490"> <span class="tok-kw">var</span> x202: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1491"> cmovznzU64(&x202, x198, x195, x187);</span> <span class="line" id="L1492"> out1[<span class="tok-number">0</span>] = x199;</span> <span class="line" id="L1493"> out1[<span class="tok-number">1</span>] = x200;</span> <span class="line" id="L1494"> out1[<span class="tok-number">2</span>] = x201;</span> <span class="line" id="L1495"> out1[<span class="tok-number">3</span>] = x202;</span> <span class="line" id="L1496">}</span> <span class="line" id="L1497"></span> <span class="line" id="L1498"><span class="tok-comment">/// The function nonzero outputs a single non-zero word if the input is non-zero and zero otherwise.</span></span> <span class="line" id="L1499"><span class="tok-comment">///</span></span> <span class="line" id="L1500"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L1501"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L1502"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L1503"><span class="tok-comment">/// out1 = 0 ↔ eval (from_montgomery arg1) mod m = 0</span></span> <span class="line" id="L1504"><span class="tok-comment">///</span></span> <span class="line" id="L1505"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L1506"><span class="tok-comment">/// arg1: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1507"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L1508"><span class="tok-comment">/// out1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L1509"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">nonzero</span>(out1: <span class="tok-type">u64</span>, arg1: [<span class="tok-number">4</span>]<span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L1510"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L1511"></span> <span class="line" id="L1512"> <span class="tok-kw">const</span> x1 = ((arg1[<span class="tok-number">0</span>]) \| ((arg1[<span class="tok-number">1</span>]) \| ((arg1[<span class="tok-number">2</span>]) \| (arg1[<span class="tok-number">3</span>]))));</span> <span class="line" id="L1513"> out1. = x1;</span> <span class="line" id="L1514">}</span> <span class="line" id="L1515"></span> <span class="line" id="L1516"><span class="tok-comment">/// The function selectznz is a multi-limb conditional select.</span></span> <span class="line" id="L1517"><span class="tok-comment">///</span></span> <span class="line" id="L1518"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L1519"><span class="tok-comment">/// eval out1 = (if arg1 = 0 then eval arg2 else eval arg3)</span></span> <span class="line" id="L1520"><span class="tok-comment">///</span></span> <span class="line" id="L1521"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L1522"><span class="tok-comment">/// arg1: [0x0 ~> 0x1]</span></span> <span class="line" id="L1523"><span class="tok-comment">/// arg2: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1524"><span class="tok-comment">/// arg3: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1525"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L1526"><span class="tok-comment">/// out1: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1527"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">selectznz</span>(out1: [<span class="tok-number">4</span>]<span class="tok-type">u64</span>, arg1: <span class="tok-type">u1</span>, arg2: [<span class="tok-number">4</span>]<span class="tok-type">u64</span>, arg3: [<span class="tok-number">4</span>]<span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L1528"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L1529"></span> <span class="line" id="L1530"> <span class="tok-kw">var</span> x1: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1531"> cmovznzU64(&x1, arg1, (arg2[<span class="tok-number">0</span>]), (arg3[<span class="tok-number">0</span>]));</span> <span class="line" id="L1532"> <span class="tok-kw">var</span> x2: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1533"> cmovznzU64(&x2, arg1, (arg2[<span class="tok-number">1</span>]), (arg3[<span class="tok-number">1</span>]));</span> <span class="line" id="L1534"> <span class="tok-kw">var</span> x3: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1535"> cmovznzU64(&x3, arg1, (arg2[<span class="tok-number">2</span>]), (arg3[<span class="tok-number">2</span>]));</span> <span class="line" id="L1536"> <span class="tok-kw">var</span> x4: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1537"> cmovznzU64(&x4, arg1, (arg2[<span class="tok-number">3</span>]), (arg3[<span class="tok-number">3</span>]));</span> <span class="line" id="L1538"> out1[<span class="tok-number">0</span>] = x1;</span> <span class="line" id="L1539"> out1[<span class="tok-number">1</span>] = x2;</span> <span class="line" id="L1540"> out1[<span class="tok-number">2</span>] = x3;</span> <span class="line" id="L1541"> out1[<span class="tok-number">3</span>] = x4;</span> <span class="line" id="L1542">}</span> <span class="line" id="L1543"></span> <span class="line" id="L1544"><span class="tok-comment">/// The function toBytes serializes a field element NOT in the Montgomery domain to bytes in little-endian order.</span></span> <span class="line" id="L1545"><span class="tok-comment">///</span></span> <span class="line" id="L1546"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L1547"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L1548"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L1549"><span class="tok-comment">/// out1 = map (λ x, ⌊((eval arg1 mod m) mod 2^(8 (x + 1))) / 2^(8 * x)⌋) [0..31]</span></span> <span class="line" id="L1550"><span class="tok-comment">///</span></span> <span class="line" id="L1551"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L1552"><span class="tok-comment">/// arg1: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1553"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L1554"><span class="tok-comment">/// out1: [[0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff]]</span></span> <span class="line" id="L1555"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toBytes</span>(out1: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>, arg1: [<span class="tok-number">4</span>]<span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L1556"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L1557"></span> <span class="line" id="L1558"> <span class="tok-kw">const</span> x1 = (arg1[<span class="tok-number">3</span>]);</span> <span class="line" id="L1559"> <span class="tok-kw">const</span> x2 = (arg1[<span class="tok-number">2</span>]);</span> <span class="line" id="L1560"> <span class="tok-kw">const</span> x3 = (arg1[<span class="tok-number">1</span>]);</span> <span class="line" id="L1561"> <span class="tok-kw">const</span> x4 = (arg1[<span class="tok-number">0</span>]);</span> <span class="line" id="L1562"> <span class="tok-kw">const</span> x5 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x4 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1563"> <span class="tok-kw">const</span> x6 = (x4 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1564"> <span class="tok-kw">const</span> x7 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x6 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1565"> <span class="tok-kw">const</span> x8 = (x6 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1566"> <span class="tok-kw">const</span> x9 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x8 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1567"> <span class="tok-kw">const</span> x10 = (x8 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1568"> <span class="tok-kw">const</span> x11 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x10 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1569"> <span class="tok-kw">const</span> x12 = (x10 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1570"> <span class="tok-kw">const</span> x13 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x12 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1571"> <span class="tok-kw">const</span> x14 = (x12 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1572"> <span class="tok-kw">const</span> x15 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x14 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1573"> <span class="tok-kw">const</span> x16 = (x14 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1574"> <span class="tok-kw">const</span> x17 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x16 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1575"> <span class="tok-kw">const</span> x18 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x16 >> <span class="tok-number">8</span>)));</span> <span class="line" id="L1576"> <span class="tok-kw">const</span> x19 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x3 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1577"> <span class="tok-kw">const</span> x20 = (x3 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1578"> <span class="tok-kw">const</span> x21 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x20 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1579"> <span class="tok-kw">const</span> x22 = (x20 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1580"> <span class="tok-kw">const</span> x23 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x22 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1581"> <span class="tok-kw">const</span> x24 = (x22 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1582"> <span class="tok-kw">const</span> x25 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x24 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1583"> <span class="tok-kw">const</span> x26 = (x24 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1584"> <span class="tok-kw">const</span> x27 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x26 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1585"> <span class="tok-kw">const</span> x28 = (x26 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1586"> <span class="tok-kw">const</span> x29 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x28 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1587"> <span class="tok-kw">const</span> x30 = (x28 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1588"> <span class="tok-kw">const</span> x31 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x30 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1589"> <span class="tok-kw">const</span> x32 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x30 >> <span class="tok-number">8</span>)));</span> <span class="line" id="L1590"> <span class="tok-kw">const</span> x33 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x2 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1591"> <span class="tok-kw">const</span> x34 = (x2 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1592"> <span class="tok-kw">const</span> x35 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x34 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1593"> <span class="tok-kw">const</span> x36 = (x34 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1594"> <span class="tok-kw">const</span> x37 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x36 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1595"> <span class="tok-kw">const</span> x38 = (x36 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1596"> <span class="tok-kw">const</span> x39 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x38 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1597"> <span class="tok-kw">const</span> x40 = (x38 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1598"> <span class="tok-kw">const</span> x41 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x40 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1599"> <span class="tok-kw">const</span> x42 = (x40 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1600"> <span class="tok-kw">const</span> x43 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x42 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1601"> <span class="tok-kw">const</span> x44 = (x42 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1602"> <span class="tok-kw">const</span> x45 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x44 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1603"> <span class="tok-kw">const</span> x46 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x44 >> <span class="tok-number">8</span>)));</span> <span class="line" id="L1604"> <span class="tok-kw">const</span> x47 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x1 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1605"> <span class="tok-kw">const</span> x48 = (x1 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1606"> <span class="tok-kw">const</span> x49 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x48 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1607"> <span class="tok-kw">const</span> x50 = (x48 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1608"> <span class="tok-kw">const</span> x51 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x50 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1609"> <span class="tok-kw">const</span> x52 = (x50 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1610"> <span class="tok-kw">const</span> x53 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x52 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1611"> <span class="tok-kw">const</span> x54 = (x52 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1612"> <span class="tok-kw">const</span> x55 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x54 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1613"> <span class="tok-kw">const</span> x56 = (x54 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1614"> <span class="tok-kw">const</span> x57 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x56 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1615"> <span class="tok-kw">const</span> x58 = (x56 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1616"> <span class="tok-kw">const</span> x59 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x58 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0xff</span>))));</span> <span class="line" id="L1617"> <span class="tok-kw">const</span> x60 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x58 >> <span class="tok-number">8</span>)));</span> <span class="line" id="L1618"> out1[<span class="tok-number">0</span>] = x5;</span> <span class="line" id="L1619"> out1[<span class="tok-number">1</span>] = x7;</span> <span class="line" id="L1620"> out1[<span class="tok-number">2</span>] = x9;</span> <span class="line" id="L1621"> out1[<span class="tok-number">3</span>] = x11;</span> <span class="line" id="L1622"> out1[<span class="tok-number">4</span>] = x13;</span> <span class="line" id="L1623"> out1[<span class="tok-number">5</span>] = x15;</span> <span class="line" id="L1624"> out1[<span class="tok-number">6</span>] = x17;</span> <span class="line" id="L1625"> out1[<span class="tok-number">7</span>] = x18;</span> <span class="line" id="L1626"> out1[<span class="tok-number">8</span>] = x19;</span> <span class="line" id="L1627"> out1[<span class="tok-number">9</span>] = x21;</span> <span class="line" id="L1628"> out1[<span class="tok-number">10</span>] = x23;</span> <span class="line" id="L1629"> out1[<span class="tok-number">11</span>] = x25;</span> <span class="line" id="L1630"> out1[<span class="tok-number">12</span>] = x27;</span> <span class="line" id="L1631"> out1[<span class="tok-number">13</span>] = x29;</span> <span class="line" id="L1632"> out1[<span class="tok-number">14</span>] = x31;</span> <span class="line" id="L1633"> out1[<span class="tok-number">15</span>] = x32;</span> <span class="line" id="L1634"> out1[<span class="tok-number">16</span>] = x33;</span> <span class="line" id="L1635"> out1[<span class="tok-number">17</span>] = x35;</span> <span class="line" id="L1636"> out1[<span class="tok-number">18</span>] = x37;</span> <span class="line" id="L1637"> out1[<span class="tok-number">19</span>] = x39;</span> <span class="line" id="L1638"> out1[<span class="tok-number">20</span>] = x41;</span> <span class="line" id="L1639"> out1[<span class="tok-number">21</span>] = x43;</span> <span class="line" id="L1640"> out1[<span class="tok-number">22</span>] = x45;</span> <span class="line" id="L1641"> out1[<span class="tok-number">23</span>] = x46;</span> <span class="line" id="L1642"> out1[<span class="tok-number">24</span>] = x47;</span> <span class="line" id="L1643"> out1[<span class="tok-number">25</span>] = x49;</span> <span class="line" id="L1644"> out1[<span class="tok-number">26</span>] = x51;</span> <span class="line" id="L1645"> out1[<span class="tok-number">27</span>] = x53;</span> <span class="line" id="L1646"> out1[<span class="tok-number">28</span>] = x55;</span> <span class="line" id="L1647"> out1[<span class="tok-number">29</span>] = x57;</span> <span class="line" id="L1648"> out1[<span class="tok-number">30</span>] = x59;</span> <span class="line" id="L1649"> out1[<span class="tok-number">31</span>] = x60;</span> <span class="line" id="L1650">}</span> <span class="line" id="L1651"></span> <span class="line" id="L1652"><span class="tok-comment">/// The function fromBytes deserializes a field element NOT in the Montgomery domain from bytes in little-endian order.</span></span> <span class="line" id="L1653"><span class="tok-comment">///</span></span> <span class="line" id="L1654"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L1655"><span class="tok-comment">/// 0 ≤ bytes_eval arg1 < m</span></span> <span class="line" id="L1656"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L1657"><span class="tok-comment">/// eval out1 mod m = bytes_eval arg1 mod m</span></span> <span class="line" id="L1658"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L1659"><span class="tok-comment">///</span></span> <span class="line" id="L1660"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L1661"><span class="tok-comment">/// arg1: [[0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff]]</span></span> <span class="line" id="L1662"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L1663"><span class="tok-comment">/// out1: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1664"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromBytes</span>(out1: [<span class="tok-number">4</span>]<span class="tok-type">u64</span>, arg1: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L1665"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L1666"></span> <span class="line" id="L1667"> <span class="tok-kw">const</span> x1 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">31</span>])) << <span class="tok-number">56</span>);</span> <span class="line" id="L1668"> <span class="tok-kw">const</span> x2 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">30</span>])) << <span class="tok-number">48</span>);</span> <span class="line" id="L1669"> <span class="tok-kw">const</span> x3 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">29</span>])) << <span class="tok-number">40</span>);</span> <span class="line" id="L1670"> <span class="tok-kw">const</span> x4 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">28</span>])) << <span class="tok-number">32</span>);</span> <span class="line" id="L1671"> <span class="tok-kw">const</span> x5 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">27</span>])) << <span class="tok-number">24</span>);</span> <span class="line" id="L1672"> <span class="tok-kw">const</span> x6 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">26</span>])) << <span class="tok-number">16</span>);</span> <span class="line" id="L1673"> <span class="tok-kw">const</span> x7 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">25</span>])) << <span class="tok-number">8</span>);</span> <span class="line" id="L1674"> <span class="tok-kw">const</span> x8 = (arg1[<span class="tok-number">24</span>]);</span> <span class="line" id="L1675"> <span class="tok-kw">const</span> x9 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">23</span>])) << <span class="tok-number">56</span>);</span> <span class="line" id="L1676"> <span class="tok-kw">const</span> x10 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">22</span>])) << <span class="tok-number">48</span>);</span> <span class="line" id="L1677"> <span class="tok-kw">const</span> x11 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">21</span>])) << <span class="tok-number">40</span>);</span> <span class="line" id="L1678"> <span class="tok-kw">const</span> x12 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">20</span>])) << <span class="tok-number">32</span>);</span> <span class="line" id="L1679"> <span class="tok-kw">const</span> x13 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">19</span>])) << <span class="tok-number">24</span>);</span> <span class="line" id="L1680"> <span class="tok-kw">const</span> x14 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">18</span>])) << <span class="tok-number">16</span>);</span> <span class="line" id="L1681"> <span class="tok-kw">const</span> x15 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">17</span>])) << <span class="tok-number">8</span>);</span> <span class="line" id="L1682"> <span class="tok-kw">const</span> x16 = (arg1[<span class="tok-number">16</span>]);</span> <span class="line" id="L1683"> <span class="tok-kw">const</span> x17 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">15</span>])) << <span class="tok-number">56</span>);</span> <span class="line" id="L1684"> <span class="tok-kw">const</span> x18 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">14</span>])) << <span class="tok-number">48</span>);</span> <span class="line" id="L1685"> <span class="tok-kw">const</span> x19 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">13</span>])) << <span class="tok-number">40</span>);</span> <span class="line" id="L1686"> <span class="tok-kw">const</span> x20 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">12</span>])) << <span class="tok-number">32</span>);</span> <span class="line" id="L1687"> <span class="tok-kw">const</span> x21 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">11</span>])) << <span class="tok-number">24</span>);</span> <span class="line" id="L1688"> <span class="tok-kw">const</span> x22 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">10</span>])) << <span class="tok-number">16</span>);</span> <span class="line" id="L1689"> <span class="tok-kw">const</span> x23 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">9</span>])) << <span class="tok-number">8</span>);</span> <span class="line" id="L1690"> <span class="tok-kw">const</span> x24 = (arg1[<span class="tok-number">8</span>]);</span> <span class="line" id="L1691"> <span class="tok-kw">const</span> x25 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">7</span>])) << <span class="tok-number">56</span>);</span> <span class="line" id="L1692"> <span class="tok-kw">const</span> x26 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">6</span>])) << <span class="tok-number">48</span>);</span> <span class="line" id="L1693"> <span class="tok-kw">const</span> x27 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">5</span>])) << <span class="tok-number">40</span>);</span> <span class="line" id="L1694"> <span class="tok-kw">const</span> x28 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">4</span>])) << <span class="tok-number">32</span>);</span> <span class="line" id="L1695"> <span class="tok-kw">const</span> x29 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">3</span>])) << <span class="tok-number">24</span>);</span> <span class="line" id="L1696"> <span class="tok-kw">const</span> x30 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">2</span>])) << <span class="tok-number">16</span>);</span> <span class="line" id="L1697"> <span class="tok-kw">const</span> x31 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">1</span>])) << <span class="tok-number">8</span>);</span> <span class="line" id="L1698"> <span class="tok-kw">const</span> x32 = (arg1[<span class="tok-number">0</span>]);</span> <span class="line" id="L1699"> <span class="tok-kw">const</span> x33 = (x31 + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x32));</span> <span class="line" id="L1700"> <span class="tok-kw">const</span> x34 = (x30 + x33);</span> <span class="line" id="L1701"> <span class="tok-kw">const</span> x35 = (x29 + x34);</span> <span class="line" id="L1702"> <span class="tok-kw">const</span> x36 = (x28 + x35);</span> <span class="line" id="L1703"> <span class="tok-kw">const</span> x37 = (x27 + x36);</span> <span class="line" id="L1704"> <span class="tok-kw">const</span> x38 = (x26 + x37);</span> <span class="line" id="L1705"> <span class="tok-kw">const</span> x39 = (x25 + x38);</span> <span class="line" id="L1706"> <span class="tok-kw">const</span> x40 = (x23 + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x24));</span> <span class="line" id="L1707"> <span class="tok-kw">const</span> x41 = (x22 + x40);</span> <span class="line" id="L1708"> <span class="tok-kw">const</span> x42 = (x21 + x41);</span> <span class="line" id="L1709"> <span class="tok-kw">const</span> x43 = (x20 + x42);</span> <span class="line" id="L1710"> <span class="tok-kw">const</span> x44 = (x19 + x43);</span> <span class="line" id="L1711"> <span class="tok-kw">const</span> x45 = (x18 + x44);</span> <span class="line" id="L1712"> <span class="tok-kw">const</span> x46 = (x17 + x45);</span> <span class="line" id="L1713"> <span class="tok-kw">const</span> x47 = (x15 + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x16));</span> <span class="line" id="L1714"> <span class="tok-kw">const</span> x48 = (x14 + x47);</span> <span class="line" id="L1715"> <span class="tok-kw">const</span> x49 = (x13 + x48);</span> <span class="line" id="L1716"> <span class="tok-kw">const</span> x50 = (x12 + x49);</span> <span class="line" id="L1717"> <span class="tok-kw">const</span> x51 = (x11 + x50);</span> <span class="line" id="L1718"> <span class="tok-kw">const</span> x52 = (x10 + x51);</span> <span class="line" id="L1719"> <span class="tok-kw">const</span> x53 = (x9 + x52);</span> <span class="line" id="L1720"> <span class="tok-kw">const</span> x54 = (x7 + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x8));</span> <span class="line" id="L1721"> <span class="tok-kw">const</span> x55 = (x6 + x54);</span> <span class="line" id="L1722"> <span class="tok-kw">const</span> x56 = (x5 + x55);</span> <span class="line" id="L1723"> <span class="tok-kw">const</span> x57 = (x4 + x56);</span> <span class="line" id="L1724"> <span class="tok-kw">const</span> x58 = (x3 + x57);</span> <span class="line" id="L1725"> <span class="tok-kw">const</span> x59 = (x2 + x58);</span> <span class="line" id="L1726"> <span class="tok-kw">const</span> x60 = (x1 + x59);</span> <span class="line" id="L1727"> out1[<span class="tok-number">0</span>] = x39;</span> <span class="line" id="L1728"> out1[<span class="tok-number">1</span>] = x46;</span> <span class="line" id="L1729"> out1[<span class="tok-number">2</span>] = x53;</span> <span class="line" id="L1730"> out1[<span class="tok-number">3</span>] = x60;</span> <span class="line" id="L1731">}</span> <span class="line" id="L1732"></span> <span class="line" id="L1733"><span class="tok-comment">/// The function setOne returns the field element one in the Montgomery domain.</span></span> <span class="line" id="L1734"><span class="tok-comment">///</span></span> <span class="line" id="L1735"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L1736"><span class="tok-comment">/// eval (from_montgomery out1) mod m = 1 mod m</span></span> <span class="line" id="L1737"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L1738"><span class="tok-comment">///</span></span> <span class="line" id="L1739"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">setOne</span>(out1: MontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L1740"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L1741"></span> <span class="line" id="L1742"> out1[<span class="tok-number">0</span>] = <span class="tok-number">0xc46353d039cdaaf</span>;</span> <span class="line" id="L1743"> out1[<span class="tok-number">1</span>] = <span class="tok-number">0x4319055258e8617b</span>;</span> <span class="line" id="L1744"> out1[<span class="tok-number">2</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1745"> out1[<span class="tok-number">3</span>] = <span class="tok-number">0xffffffff</span>;</span> <span class="line" id="L1746">}</span> <span class="line" id="L1747"></span> <span class="line" id="L1748"><span class="tok-comment">/// The function msat returns the saturated representation of the prime modulus.</span></span> <span class="line" id="L1749"><span class="tok-comment">///</span></span> <span class="line" id="L1750"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L1751"><span class="tok-comment">/// twos_complement_eval out1 = m</span></span> <span class="line" id="L1752"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L1753"><span class="tok-comment">///</span></span> <span class="line" id="L1754"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L1755"><span class="tok-comment">/// out1: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1756"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">msat</span>(out1: [<span class="tok-number">5</span>]<span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L1757"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L1758"></span> <span class="line" id="L1759"> out1[<span class="tok-number">0</span>] = <span class="tok-number">0xf3b9cac2fc632551</span>;</span> <span class="line" id="L1760"> out1[<span class="tok-number">1</span>] = <span class="tok-number">0xbce6faada7179e84</span>;</span> <span class="line" id="L1761"> out1[<span class="tok-number">2</span>] = <span class="tok-number">0xffffffffffffffff</span>;</span> <span class="line" id="L1762"> out1[<span class="tok-number">3</span>] = <span class="tok-number">0xffffffff00000000</span>;</span> <span class="line" id="L1763"> out1[<span class="tok-number">4</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1764">}</span> <span class="line" id="L1765"></span> <span class="line" id="L1766"><span class="tok-comment">/// The function divstep computes a divstep.</span></span> <span class="line" id="L1767"><span class="tok-comment">///</span></span> <span class="line" id="L1768"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L1769"><span class="tok-comment">/// 0 ≤ eval arg4 < m</span></span> <span class="line" id="L1770"><span class="tok-comment">/// 0 ≤ eval arg5 < m</span></span> <span class="line" id="L1771"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L1772"><span class="tok-comment">/// out1 = (if 0 < arg1 ∧ (twos_complement_eval arg3) is odd then 1 - arg1 else 1 + arg1)</span></span> <span class="line" id="L1773"><span class="tok-comment">/// twos_complement_eval out2 = (if 0 < arg1 ∧ (twos_complement_eval arg3) is odd then twos_complement_eval arg3 else twos_complement_eval arg2)</span></span> <span class="line" id="L1774"><span class="tok-comment">/// twos_complement_eval out3 = (if 0 < arg1 ∧ (twos_complement_eval arg3) is odd then ⌊(twos_complement_eval arg3 - twos_complement_eval arg2) / 2⌋ else ⌊(twos_complement_eval arg3 + (twos_complement_eval arg3 mod 2) * twos_complement_eval arg2) / 2⌋)</span></span> <span class="line" id="L1775"><span class="tok-comment">/// eval (from_montgomery out4) mod m = (if 0 < arg1 ∧ (twos_complement_eval arg3) is odd then (2 * eval (from_montgomery arg5)) mod m else (2 * eval (from_montgomery arg4)) mod m)</span></span> <span class="line" id="L1776"><span class="tok-comment">/// eval (from_montgomery out5) mod m = (if 0 < arg1 ∧ (twos_complement_eval arg3) is odd then (eval (from_montgomery arg4) - eval (from_montgomery arg4)) mod m else (eval (from_montgomery arg5) + (twos_complement_eval arg3 mod 2) * eval (from_montgomery arg4)) mod m)</span></span> <span class="line" id="L1777"><span class="tok-comment">/// 0 ≤ eval out5 < m</span></span> <span class="line" id="L1778"><span class="tok-comment">/// 0 ≤ eval out5 < m</span></span> <span class="line" id="L1779"><span class="tok-comment">/// 0 ≤ eval out2 < m</span></span> <span class="line" id="L1780"><span class="tok-comment">/// 0 ≤ eval out3 < m</span></span> <span class="line" id="L1781"><span class="tok-comment">///</span></span> <span class="line" id="L1782"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L1783"><span class="tok-comment">/// arg1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L1784"><span class="tok-comment">/// arg2: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1785"><span class="tok-comment">/// arg3: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1786"><span class="tok-comment">/// arg4: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1787"><span class="tok-comment">/// arg5: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1788"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L1789"><span class="tok-comment">/// out1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L1790"><span class="tok-comment">/// out2: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1791"><span class="tok-comment">/// out3: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1792"><span class="tok-comment">/// out4: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1793"><span class="tok-comment">/// out5: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1794"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">divstep</span>(out1: <span class="tok-type">u64</span>, out2: [<span class="tok-number">5</span>]<span class="tok-type">u64</span>, out3: [<span class="tok-number">5</span>]<span class="tok-type">u64</span>, out4: [<span class="tok-number">4</span>]<span class="tok-type">u64</span>, out5: [<span class="tok-number">4</span>]<span class="tok-type">u64</span>, arg1: <span class="tok-type">u64</span>, arg2: [<span class="tok-number">5</span>]<span class="tok-type">u64</span>, arg3: [<span class="tok-number">5</span>]<span class="tok-type">u64</span>, arg4: [<span class="tok-number">4</span>]<span class="tok-type">u64</span>, arg5: [<span class="tok-number">4</span>]<span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L1795"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L1796"></span> <span class="line" id="L1797"> <span class="tok-kw">var</span> x1: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1798"> <span class="tok-kw">var</span> x2: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1799"> addcarryxU64(&x1, &x2, <span class="tok-number">0x0</span>, (~arg1), <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x1</span>));</span> <span class="line" id="L1800"> <span class="tok-kw">const</span> x3 = <span class="tok-builtin">@as</span>(<span class="tok-type">u1</span>, <span class="tok-builtin">@truncate</span>((x1 >> <span class="tok-number">63</span>))) & <span class="tok-builtin">@as</span>(<span class="tok-type">u1</span>, <span class="tok-builtin">@truncate</span>(((arg3[<span class="tok-number">0</span>]) & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x1</span>))));</span> <span class="line" id="L1801"> <span class="tok-kw">var</span> x4: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1802"> <span class="tok-kw">var</span> x5: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1803"> addcarryxU64(&x4, &x5, <span class="tok-number">0x0</span>, (~arg1), <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x1</span>));</span> <span class="line" id="L1804"> <span class="tok-kw">var</span> x6: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1805"> cmovznzU64(&x6, x3, arg1, x4);</span> <span class="line" id="L1806"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1807"> cmovznzU64(&x7, x3, (arg2[<span class="tok-number">0</span>]), (arg3[<span class="tok-number">0</span>]));</span> <span class="line" id="L1808"> <span class="tok-kw">var</span> x8: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1809"> cmovznzU64(&x8, x3, (arg2[<span class="tok-number">1</span>]), (arg3[<span class="tok-number">1</span>]));</span> <span class="line" id="L1810"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1811"> cmovznzU64(&x9, x3, (arg2[<span class="tok-number">2</span>]), (arg3[<span class="tok-number">2</span>]));</span> <span class="line" id="L1812"> <span class="tok-kw">var</span> x10: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1813"> cmovznzU64(&x10, x3, (arg2[<span class="tok-number">3</span>]), (arg3[<span class="tok-number">3</span>]));</span> <span class="line" id="L1814"> <span class="tok-kw">var</span> x11: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1815"> cmovznzU64(&x11, x3, (arg2[<span class="tok-number">4</span>]), (arg3[<span class="tok-number">4</span>]));</span> <span class="line" id="L1816"> <span class="tok-kw">var</span> x12: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1817"> <span class="tok-kw">var</span> x13: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1818"> addcarryxU64(&x12, &x13, <span class="tok-number">0x0</span>, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x1</span>), (~(arg2[<span class="tok-number">0</span>])));</span> <span class="line" id="L1819"> <span class="tok-kw">var</span> x14: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1820"> <span class="tok-kw">var</span> x15: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1821"> addcarryxU64(&x14, &x15, x13, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), (~(arg2[<span class="tok-number">1</span>])));</span> <span class="line" id="L1822"> <span class="tok-kw">var</span> x16: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1823"> <span class="tok-kw">var</span> x17: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1824"> addcarryxU64(&x16, &x17, x15, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), (~(arg2[<span class="tok-number">2</span>])));</span> <span class="line" id="L1825"> <span class="tok-kw">var</span> x18: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1826"> <span class="tok-kw">var</span> x19: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1827"> addcarryxU64(&x18, &x19, x17, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), (~(arg2[<span class="tok-number">3</span>])));</span> <span class="line" id="L1828"> <span class="tok-kw">var</span> x20: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1829"> <span class="tok-kw">var</span> x21: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1830"> addcarryxU64(&x20, &x21, x19, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), (~(arg2[<span class="tok-number">4</span>])));</span> <span class="line" id="L1831"> <span class="tok-kw">var</span> x22: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1832"> cmovznzU64(&x22, x3, (arg3[<span class="tok-number">0</span>]), x12);</span> <span class="line" id="L1833"> <span class="tok-kw">var</span> x23: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1834"> cmovznzU64(&x23, x3, (arg3[<span class="tok-number">1</span>]), x14);</span> <span class="line" id="L1835"> <span class="tok-kw">var</span> x24: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1836"> cmovznzU64(&x24, x3, (arg3[<span class="tok-number">2</span>]), x16);</span> <span class="line" id="L1837"> <span class="tok-kw">var</span> x25: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1838"> cmovznzU64(&x25, x3, (arg3[<span class="tok-number">3</span>]), x18);</span> <span class="line" id="L1839"> <span class="tok-kw">var</span> x26: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1840"> cmovznzU64(&x26, x3, (arg3[<span class="tok-number">4</span>]), x20);</span> <span class="line" id="L1841"> <span class="tok-kw">var</span> x27: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1842"> cmovznzU64(&x27, x3, (arg4[<span class="tok-number">0</span>]), (arg5[<span class="tok-number">0</span>]));</span> <span class="line" id="L1843"> <span class="tok-kw">var</span> x28: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1844"> cmovznzU64(&x28, x3, (arg4[<span class="tok-number">1</span>]), (arg5[<span class="tok-number">1</span>]));</span> <span class="line" id="L1845"> <span class="tok-kw">var</span> x29: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1846"> cmovznzU64(&x29, x3, (arg4[<span class="tok-number">2</span>]), (arg5[<span class="tok-number">2</span>]));</span> <span class="line" id="L1847"> <span class="tok-kw">var</span> x30: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1848"> cmovznzU64(&x30, x3, (arg4[<span class="tok-number">3</span>]), (arg5[<span class="tok-number">3</span>]));</span> <span class="line" id="L1849"> <span class="tok-kw">var</span> x31: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1850"> <span class="tok-kw">var</span> x32: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1851"> addcarryxU64(&x31, &x32, <span class="tok-number">0x0</span>, x27, x27);</span> <span class="line" id="L1852"> <span class="tok-kw">var</span> x33: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1853"> <span class="tok-kw">var</span> x34: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1854"> addcarryxU64(&x33, &x34, x32, x28, x28);</span> <span class="line" id="L1855"> <span class="tok-kw">var</span> x35: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1856"> <span class="tok-kw">var</span> x36: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1857"> addcarryxU64(&x35, &x36, x34, x29, x29);</span> <span class="line" id="L1858"> <span class="tok-kw">var</span> x37: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1859"> <span class="tok-kw">var</span> x38: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1860"> addcarryxU64(&x37, &x38, x36, x30, x30);</span> <span class="line" id="L1861"> <span class="tok-kw">var</span> x39: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1862"> <span class="tok-kw">var</span> x40: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1863"> subborrowxU64(&x39, &x40, <span class="tok-number">0x0</span>, x31, <span class="tok-number">0xf3b9cac2fc632551</span>);</span> <span class="line" id="L1864"> <span class="tok-kw">var</span> x41: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1865"> <span class="tok-kw">var</span> x42: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1866"> subborrowxU64(&x41, &x42, x40, x33, <span class="tok-number">0xbce6faada7179e84</span>);</span> <span class="line" id="L1867"> <span class="tok-kw">var</span> x43: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1868"> <span class="tok-kw">var</span> x44: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1869"> subborrowxU64(&x43, &x44, x42, x35, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1870"> <span class="tok-kw">var</span> x45: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1871"> <span class="tok-kw">var</span> x46: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1872"> subborrowxU64(&x45, &x46, x44, x37, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L1873"> <span class="tok-kw">var</span> x47: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1874"> <span class="tok-kw">var</span> x48: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1875"> subborrowxU64(&x47, &x48, x46, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x38), <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>));</span> <span class="line" id="L1876"> <span class="tok-kw">const</span> x49 = (arg4[<span class="tok-number">3</span>]);</span> <span class="line" id="L1877"> <span class="tok-kw">const</span> x50 = (arg4[<span class="tok-number">2</span>]);</span> <span class="line" id="L1878"> <span class="tok-kw">const</span> x51 = (arg4[<span class="tok-number">1</span>]);</span> <span class="line" id="L1879"> <span class="tok-kw">const</span> x52 = (arg4[<span class="tok-number">0</span>]);</span> <span class="line" id="L1880"> <span class="tok-kw">var</span> x53: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1881"> <span class="tok-kw">var</span> x54: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1882"> subborrowxU64(&x53, &x54, <span class="tok-number">0x0</span>, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), x52);</span> <span class="line" id="L1883"> <span class="tok-kw">var</span> x55: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1884"> <span class="tok-kw">var</span> x56: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1885"> subborrowxU64(&x55, &x56, x54, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), x51);</span> <span class="line" id="L1886"> <span class="tok-kw">var</span> x57: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1887"> <span class="tok-kw">var</span> x58: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1888"> subborrowxU64(&x57, &x58, x56, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), x50);</span> <span class="line" id="L1889"> <span class="tok-kw">var</span> x59: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1890"> <span class="tok-kw">var</span> x60: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1891"> subborrowxU64(&x59, &x60, x58, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), x49);</span> <span class="line" id="L1892"> <span class="tok-kw">var</span> x61: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1893"> cmovznzU64(&x61, x60, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1894"> <span class="tok-kw">var</span> x62: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1895"> <span class="tok-kw">var</span> x63: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1896"> addcarryxU64(&x62, &x63, <span class="tok-number">0x0</span>, x53, (x61 & <span class="tok-number">0xf3b9cac2fc632551</span>));</span> <span class="line" id="L1897"> <span class="tok-kw">var</span> x64: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1898"> <span class="tok-kw">var</span> x65: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1899"> addcarryxU64(&x64, &x65, x63, x55, (x61 & <span class="tok-number">0xbce6faada7179e84</span>));</span> <span class="line" id="L1900"> <span class="tok-kw">var</span> x66: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1901"> <span class="tok-kw">var</span> x67: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1902"> addcarryxU64(&x66, &x67, x65, x57, x61);</span> <span class="line" id="L1903"> <span class="tok-kw">var</span> x68: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1904"> <span class="tok-kw">var</span> x69: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1905"> addcarryxU64(&x68, &x69, x67, x59, (x61 & <span class="tok-number">0xffffffff00000000</span>));</span> <span class="line" id="L1906"> <span class="tok-kw">var</span> x70: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1907"> cmovznzU64(&x70, x3, (arg5[<span class="tok-number">0</span>]), x62);</span> <span class="line" id="L1908"> <span class="tok-kw">var</span> x71: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1909"> cmovznzU64(&x71, x3, (arg5[<span class="tok-number">1</span>]), x64);</span> <span class="line" id="L1910"> <span class="tok-kw">var</span> x72: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1911"> cmovznzU64(&x72, x3, (arg5[<span class="tok-number">2</span>]), x66);</span> <span class="line" id="L1912"> <span class="tok-kw">var</span> x73: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1913"> cmovznzU64(&x73, x3, (arg5[<span class="tok-number">3</span>]), x68);</span> <span class="line" id="L1914"> <span class="tok-kw">const</span> x74 = <span class="tok-builtin">@as</span>(<span class="tok-type">u1</span>, <span class="tok-builtin">@truncate</span>((x22 & <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x1</span>))));</span> <span class="line" id="L1915"> <span class="tok-kw">var</span> x75: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1916"> cmovznzU64(&x75, x74, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), x7);</span> <span class="line" id="L1917"> <span class="tok-kw">var</span> x76: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1918"> cmovznzU64(&x76, x74, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), x8);</span> <span class="line" id="L1919"> <span class="tok-kw">var</span> x77: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1920"> cmovznzU64(&x77, x74, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), x9);</span> <span class="line" id="L1921"> <span class="tok-kw">var</span> x78: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1922"> cmovznzU64(&x78, x74, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), x10);</span> <span class="line" id="L1923"> <span class="tok-kw">var</span> x79: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1924"> cmovznzU64(&x79, x74, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), x11);</span> <span class="line" id="L1925"> <span class="tok-kw">var</span> x80: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1926"> <span class="tok-kw">var</span> x81: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1927"> addcarryxU64(&x80, &x81, <span class="tok-number">0x0</span>, x22, x75);</span> <span class="line" id="L1928"> <span class="tok-kw">var</span> x82: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1929"> <span class="tok-kw">var</span> x83: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1930"> addcarryxU64(&x82, &x83, x81, x23, x76);</span> <span class="line" id="L1931"> <span class="tok-kw">var</span> x84: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1932"> <span class="tok-kw">var</span> x85: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1933"> addcarryxU64(&x84, &x85, x83, x24, x77);</span> <span class="line" id="L1934"> <span class="tok-kw">var</span> x86: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1935"> <span class="tok-kw">var</span> x87: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1936"> addcarryxU64(&x86, &x87, x85, x25, x78);</span> <span class="line" id="L1937"> <span class="tok-kw">var</span> x88: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1938"> <span class="tok-kw">var</span> x89: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1939"> addcarryxU64(&x88, &x89, x87, x26, x79);</span> <span class="line" id="L1940"> <span class="tok-kw">var</span> x90: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1941"> cmovznzU64(&x90, x74, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), x27);</span> <span class="line" id="L1942"> <span class="tok-kw">var</span> x91: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1943"> cmovznzU64(&x91, x74, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), x28);</span> <span class="line" id="L1944"> <span class="tok-kw">var</span> x92: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1945"> cmovznzU64(&x92, x74, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), x29);</span> <span class="line" id="L1946"> <span class="tok-kw">var</span> x93: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1947"> cmovznzU64(&x93, x74, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>), x30);</span> <span class="line" id="L1948"> <span class="tok-kw">var</span> x94: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1949"> <span class="tok-kw">var</span> x95: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1950"> addcarryxU64(&x94, &x95, <span class="tok-number">0x0</span>, x70, x90);</span> <span class="line" id="L1951"> <span class="tok-kw">var</span> x96: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1952"> <span class="tok-kw">var</span> x97: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1953"> addcarryxU64(&x96, &x97, x95, x71, x91);</span> <span class="line" id="L1954"> <span class="tok-kw">var</span> x98: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1955"> <span class="tok-kw">var</span> x99: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1956"> addcarryxU64(&x98, &x99, x97, x72, x92);</span> <span class="line" id="L1957"> <span class="tok-kw">var</span> x100: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1958"> <span class="tok-kw">var</span> x101: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1959"> addcarryxU64(&x100, &x101, x99, x73, x93);</span> <span class="line" id="L1960"> <span class="tok-kw">var</span> x102: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1961"> <span class="tok-kw">var</span> x103: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1962"> subborrowxU64(&x102, &x103, <span class="tok-number">0x0</span>, x94, <span class="tok-number">0xf3b9cac2fc632551</span>);</span> <span class="line" id="L1963"> <span class="tok-kw">var</span> x104: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1964"> <span class="tok-kw">var</span> x105: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1965"> subborrowxU64(&x104, &x105, x103, x96, <span class="tok-number">0xbce6faada7179e84</span>);</span> <span class="line" id="L1966"> <span class="tok-kw">var</span> x106: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1967"> <span class="tok-kw">var</span> x107: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1968"> subborrowxU64(&x106, &x107, x105, x98, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1969"> <span class="tok-kw">var</span> x108: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1970"> <span class="tok-kw">var</span> x109: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1971"> subborrowxU64(&x108, &x109, x107, x100, <span class="tok-number">0xffffffff00000000</span>);</span> <span class="line" id="L1972"> <span class="tok-kw">var</span> x110: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1973"> <span class="tok-kw">var</span> x111: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1974"> subborrowxU64(&x110, &x111, x109, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x101), <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x0</span>));</span> <span class="line" id="L1975"> <span class="tok-kw">var</span> x112: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1976"> <span class="tok-kw">var</span> x113: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1977"> addcarryxU64(&x112, &x113, <span class="tok-number">0x0</span>, x6, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">0x1</span>));</span> <span class="line" id="L1978"> <span class="tok-kw">const</span> x114 = ((x80 >> <span class="tok-number">1</span>) \| ((x82 << <span class="tok-number">63</span>) & <span class="tok-number">0xffffffffffffffff</span>));</span> <span class="line" id="L1979"> <span class="tok-kw">const</span> x115 = ((x82 >> <span class="tok-number">1</span>) \| ((x84 << <span class="tok-number">63</span>) & <span class="tok-number">0xffffffffffffffff</span>));</span> <span class="line" id="L1980"> <span class="tok-kw">const</span> x116 = ((x84 >> <span class="tok-number">1</span>) \| ((x86 << <span class="tok-number">63</span>) & <span class="tok-number">0xffffffffffffffff</span>));</span> <span class="line" id="L1981"> <span class="tok-kw">const</span> x117 = ((x86 >> <span class="tok-number">1</span>) \| ((x88 << <span class="tok-number">63</span>) & <span class="tok-number">0xffffffffffffffff</span>));</span> <span class="line" id="L1982"> <span class="tok-kw">const</span> x118 = ((x88 & <span class="tok-number">0x8000000000000000</span>) \| (x88 >> <span class="tok-number">1</span>));</span> <span class="line" id="L1983"> <span class="tok-kw">var</span> x119: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1984"> cmovznzU64(&x119, x48, x39, x31);</span> <span class="line" id="L1985"> <span class="tok-kw">var</span> x120: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1986"> cmovznzU64(&x120, x48, x41, x33);</span> <span class="line" id="L1987"> <span class="tok-kw">var</span> x121: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1988"> cmovznzU64(&x121, x48, x43, x35);</span> <span class="line" id="L1989"> <span class="tok-kw">var</span> x122: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1990"> cmovznzU64(&x122, x48, x45, x37);</span> <span class="line" id="L1991"> <span class="tok-kw">var</span> x123: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1992"> cmovznzU64(&x123, x111, x102, x94);</span> <span class="line" id="L1993"> <span class="tok-kw">var</span> x124: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1994"> cmovznzU64(&x124, x111, x104, x96);</span> <span class="line" id="L1995"> <span class="tok-kw">var</span> x125: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1996"> cmovznzU64(&x125, x111, x106, x98);</span> <span class="line" id="L1997"> <span class="tok-kw">var</span> x126: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1998"> cmovznzU64(&x126, x111, x108, x100);</span> <span class="line" id="L1999"> out1. = x112;</span> <span class="line" id="L2000"> out2[<span class="tok-number">0</span>] = x7;</span> <span class="line" id="L2001"> out2[<span class="tok-number">1</span>] = x8;</span> <span class="line" id="L2002"> out2[<span class="tok-number">2</span>] = x9;</span> <span class="line" id="L2003"> out2[<span class="tok-number">3</span>] = x10;</span> <span class="line" id="L2004"> out2[<span class="tok-number">4</span>] = x11;</span> <span class="line" id="L2005"> out3[<span class="tok-number">0</span>] = x114;</span> <span class="line" id="L2006"> out3[<span class="tok-number">1</span>] = x115;</span> <span class="line" id="L2007"> out3[<span class="tok-number">2</span>] = x116;</span> <span class="line" id="L2008"> out3[<span class="tok-number">3</span>] = x117;</span> <span class="line" id="L2009"> out3[<span class="tok-number">4</span>] = x118;</span> <span class="line" id="L2010"> out4[<span class="tok-number">0</span>] = x119;</span> <span class="line" id="L2011"> out4[<span class="tok-number">1</span>] = x120;</span> <span class="line" id="L2012"> out4[<span class="tok-number">2</span>] = x121;</span> <span class="line" id="L2013"> out4[<span class="tok-number">3</span>] = x122;</span> <span class="line" id="L2014"> out5[<span class="tok-number">0</span>] = x123;</span> <span class="line" id="L2015"> out5[<span class="tok-number">1</span>] = x124;</span> <span class="line" id="L2016"> out5[<span class="tok-number">2</span>] = x125;</span> <span class="line" id="L2017"> out5[<span class="tok-number">3</span>] = x126;</span> <span class="line" id="L2018">}</span> <span class="line" id="L2019"></span> <span class="line" id="L2020"><span class="tok-comment">/// The function divstepPrecomp returns the precomputed value for Bernstein-Yang-inversion (in montgomery form).</span></span> <span class="line" id="L2021"><span class="tok-comment">///</span></span> <span class="line" id="L2022"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L2023"><span class="tok-comment">/// eval (from_montgomery out1) = ⌊(m - 1) / 2⌋^(if ⌊log2 m⌋ + 1 < 46 then ⌊(49 * (⌊log2 m⌋ + 1) + 80) / 17⌋ else ⌊(49 * (⌊log2 m⌋ + 1) + 57) / 17⌋)</span></span> <span class="line" id="L2024"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L2025"><span class="tok-comment">///</span></span> <span class="line" id="L2026"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L2027"><span class="tok-comment">/// out1: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L2028"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">divstepPrecomp</span>(out1: *[<span class="tok-number">4</span>]<span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L2029"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L2030"></span> <span class="line" id="L2031"> out1[<span class="tok-number">0</span>] = <span class="tok-number">0xd739262fb7fcfbb5</span>;</span> <span class="line" id="L2032"> out1[<span class="tok-number">1</span>] = <span class="tok-number">0x8ac6f75d20074414</span>;</span> <span class="line" id="L2033"> out1[<span class="tok-number">2</span>] = <span class="tok-number">0xc67428bfb5e3c256</span>;</span> <span class="line" id="L2034"> out1[<span class="tok-number">3</span>] = <span class="tok-number">0x444962f2eda7aedf</span>;</span> <span class="line" id="L2035">}</span> <span class="line" id="L2036"></span> </code></pre></body> </html>
repos/yazap/docs/src/std/crypto/pcurves	repos/yazap/docs/src/std/crypto/pcurves/secp256k1/scalar.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/pcurves/secp256k1/scalar.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> common = <span class="tok-builtin">@import</span>(<span class="tok-str">"../common.zig"</span>);</span> <span class="line" id="L3"><span class="tok-kw">const</span> crypto = std.crypto;</span> <span class="line" id="L4"><span class="tok-kw">const</span> debug = std.debug;</span> <span class="line" id="L5"><span class="tok-kw">const</span> math = std.math;</span> <span class="line" id="L6"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L7"></span> <span class="line" id="L8"><span class="tok-kw">const</span> Field = common.Field;</span> <span class="line" id="L9"></span> <span class="line" id="L10"><span class="tok-kw">const</span> NonCanonicalError = std.crypto.errors.NonCanonicalError;</span> <span class="line" id="L11"><span class="tok-kw">const</span> NotSquareError = std.crypto.errors.NotSquareError;</span> <span class="line" id="L12"></span> <span class="line" id="L13"><span class="tok-comment">/// Number of bytes required to encode a scalar.</span></span> <span class="line" id="L14"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> encoded_length = <span class="tok-number">32</span>;</span> <span class="line" id="L15"></span> <span class="line" id="L16"><span class="tok-comment">/// A compressed scalar, in canonical form.</span></span> <span class="line" id="L17"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> CompressedScalar = [encoded_length]<span class="tok-type">u8</span>;</span> <span class="line" id="L18"></span> <span class="line" id="L19"><span class="tok-kw">const</span> Fe = Field(.{</span> <span class="line" id="L20"> .fiat = <span class="tok-builtin">@import</span>(<span class="tok-str">"secp256k1_scalar_64.zig"</span>),</span> <span class="line" id="L21"> .field_order = <span class="tok-number">115792089237316195423570985008687907852837564279074904382605163141518161494337</span>,</span> <span class="line" id="L22"> .field_bits = <span class="tok-number">256</span>,</span> <span class="line" id="L23"> .saturated_bits = <span class="tok-number">256</span>,</span> <span class="line" id="L24"> .encoded_length = encoded_length,</span> <span class="line" id="L25">});</span> <span class="line" id="L26"></span> <span class="line" id="L27"><span class="tok-comment">/// The scalar field order.</span></span> <span class="line" id="L28"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> field_order = Fe.field_order;</span> <span class="line" id="L29"></span> <span class="line" id="L30"><span class="tok-comment">/// Reject a scalar whose encoding is not canonical.</span></span> <span class="line" id="L31"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">rejectNonCanonical</span>(s: CompressedScalar, endian: std.builtin.Endian) NonCanonicalError!<span class="tok-type">void</span> {</span> <span class="line" id="L32"> <span class="tok-kw">return</span> Fe.rejectNonCanonical(s, endian);</span> <span class="line" id="L33">}</span> <span class="line" id="L34"></span> <span class="line" id="L35"><span class="tok-comment">/// Reduce a 48-bytes scalar to the field size.</span></span> <span class="line" id="L36"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">reduce48</span>(s: [<span class="tok-number">48</span>]<span class="tok-type">u8</span>, endian: std.builtin.Endian) CompressedScalar {</span> <span class="line" id="L37"> <span class="tok-kw">return</span> Scalar.fromBytes48(s, endian).toBytes(endian);</span> <span class="line" id="L38">}</span> <span class="line" id="L39"></span> <span class="line" id="L40"><span class="tok-comment">/// Reduce a 64-bytes scalar to the field size.</span></span> <span class="line" id="L41"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">reduce64</span>(s: [<span class="tok-number">64</span>]<span class="tok-type">u8</span>, endian: std.builtin.Endian) CompressedScalar {</span> <span class="line" id="L42"> <span class="tok-kw">return</span> ScalarDouble.fromBytes64(s, endian).toBytes(endian);</span> <span class="line" id="L43">}</span> <span class="line" id="L44"></span> <span class="line" id="L45"><span class="tok-comment">/// Return ab (mod L)</span></span> <span class="line" id="L46"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">mul</span>(a: CompressedScalar, b: CompressedScalar, endian: std.builtin.Endian) NonCanonicalError!CompressedScalar {</span> <span class="line" id="L47"> <span class="tok-kw">return</span> (<span class="tok-kw">try</span> Scalar.fromBytes(a, endian)).mul(<span class="tok-kw">try</span> Scalar.fromBytes(b, endian)).toBytes(endian);</span> <span class="line" id="L48">}</span> <span class="line" id="L49"></span> <span class="line" id="L50"><span class="tok-comment">/// Return ab+c (mod L)</span></span> <span class="line" id="L51"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">mulAdd</span>(a: CompressedScalar, b: CompressedScalar, c: CompressedScalar, endian: std.builtin.Endian) NonCanonicalError!CompressedScalar {</span> <span class="line" id="L52"> <span class="tok-kw">return</span> (<span class="tok-kw">try</span> Scalar.fromBytes(a, endian)).mul(<span class="tok-kw">try</span> Scalar.fromBytes(b, endian)).add(<span class="tok-kw">try</span> Scalar.fromBytes(c, endian)).toBytes(endian);</span> <span class="line" id="L53">}</span> <span class="line" id="L54"></span> <span class="line" id="L55"><span class="tok-comment">/// Return a+b (mod L)</span></span> <span class="line" id="L56"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">add</span>(a: CompressedScalar, b: CompressedScalar, endian: std.builtin.Endian) NonCanonicalError!CompressedScalar {</span> <span class="line" id="L57"> <span class="tok-kw">return</span> (<span class="tok-kw">try</span> Scalar.fromBytes(a, endian)).add(<span class="tok-kw">try</span> Scalar.fromBytes(b, endian)).toBytes(endian);</span> <span class="line" id="L58">}</span> <span class="line" id="L59"></span> <span class="line" id="L60"><span class="tok-comment">/// Return -s (mod L)</span></span> <span class="line" id="L61"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">neg</span>(s: CompressedScalar, endian: std.builtin.Endian) NonCanonicalError!CompressedScalar {</span> <span class="line" id="L62"> <span class="tok-kw">return</span> (<span class="tok-kw">try</span> Scalar.fromBytes(s, endian)).neg().toBytes(endian);</span> <span class="line" id="L63">}</span> <span class="line" id="L64"></span> <span class="line" id="L65"><span class="tok-comment">/// Return (a-b) (mod L)</span></span> <span class="line" id="L66"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">sub</span>(a: CompressedScalar, b: CompressedScalar, endian: std.builtin.Endian) NonCanonicalError!CompressedScalar {</span> <span class="line" id="L67"> <span class="tok-kw">return</span> (<span class="tok-kw">try</span> Scalar.fromBytes(a, endian)).sub(<span class="tok-kw">try</span> Scalar.fromBytes(b, endian)).toBytes(endian);</span> <span class="line" id="L68">}</span> <span class="line" id="L69"></span> <span class="line" id="L70"><span class="tok-comment">/// Return a random scalar</span></span> <span class="line" id="L71"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">random</span>(endian: std.builtin.Endian) CompressedScalar {</span> <span class="line" id="L72"> <span class="tok-kw">return</span> Scalar.random().toBytes(endian);</span> <span class="line" id="L73">}</span> <span class="line" id="L74"></span> <span class="line" id="L75"><span class="tok-comment">/// A scalar in unpacked representation.</span></span> <span class="line" id="L76"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Scalar = <span class="tok-kw">struct</span> {</span> <span class="line" id="L77"> fe: Fe,</span> <span class="line" id="L78"></span> <span class="line" id="L79"> <span class="tok-comment">/// Zero.</span></span> <span class="line" id="L80"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> zero = Scalar{ .fe = Fe.zero };</span> <span class="line" id="L81"></span> <span class="line" id="L82"> <span class="tok-comment">/// One.</span></span> <span class="line" id="L83"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> one = Scalar{ .fe = Fe.one };</span> <span class="line" id="L84"></span> <span class="line" id="L85"> <span class="tok-comment">/// Unpack a serialized representation of a scalar.</span></span> <span class="line" id="L86"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromBytes</span>(s: CompressedScalar, endian: std.builtin.Endian) NonCanonicalError!Scalar {</span> <span class="line" id="L87"> <span class="tok-kw">return</span> Scalar{ .fe = <span class="tok-kw">try</span> Fe.fromBytes(s, endian) };</span> <span class="line" id="L88"> }</span> <span class="line" id="L89"></span> <span class="line" id="L90"> <span class="tok-comment">/// Reduce a 384 bit input to the field size.</span></span> <span class="line" id="L91"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromBytes48</span>(s: [<span class="tok-number">48</span>]<span class="tok-type">u8</span>, endian: std.builtin.Endian) Scalar {</span> <span class="line" id="L92"> <span class="tok-kw">const</span> t = ScalarDouble.fromBytes(<span class="tok-number">384</span>, s, endian);</span> <span class="line" id="L93"> <span class="tok-kw">return</span> t.reduce(<span class="tok-number">384</span>);</span> <span class="line" id="L94"> }</span> <span class="line" id="L95"></span> <span class="line" id="L96"> <span class="tok-comment">/// Reduce a 512 bit input to the field size.</span></span> <span class="line" id="L97"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromBytes64</span>(s: [<span class="tok-number">64</span>]<span class="tok-type">u8</span>, endian: std.builtin.Endian) Scalar {</span> <span class="line" id="L98"> <span class="tok-kw">const</span> t = ScalarDouble.fromBytes(<span class="tok-number">512</span>, s, endian);</span> <span class="line" id="L99"> <span class="tok-kw">return</span> t.reduce(<span class="tok-number">512</span>);</span> <span class="line" id="L100"> }</span> <span class="line" id="L101"></span> <span class="line" id="L102"> <span class="tok-comment">/// Pack a scalar into bytes.</span></span> <span class="line" id="L103"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toBytes</span>(n: Scalar, endian: std.builtin.Endian) CompressedScalar {</span> <span class="line" id="L104"> <span class="tok-kw">return</span> n.fe.toBytes(endian);</span> <span class="line" id="L105"> }</span> <span class="line" id="L106"></span> <span class="line" id="L107"> <span class="tok-comment">/// Return true if the scalar is zero..</span></span> <span class="line" id="L108"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">isZero</span>(n: Scalar) <span class="tok-type">bool</span> {</span> <span class="line" id="L109"> <span class="tok-kw">return</span> n.fe.isZero();</span> <span class="line" id="L110"> }</span> <span class="line" id="L111"></span> <span class="line" id="L112"> <span class="tok-comment">/// Return true if the scalar is odd.</span></span> <span class="line" id="L113"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">isOdd</span>(n: Scalar) <span class="tok-type">bool</span> {</span> <span class="line" id="L114"> <span class="tok-kw">return</span> n.fe.isOdd();</span> <span class="line" id="L115"> }</span> <span class="line" id="L116"></span> <span class="line" id="L117"> <span class="tok-comment">/// Return true if a and b are equivalent.</span></span> <span class="line" id="L118"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">equivalent</span>(a: Scalar, b: Scalar) <span class="tok-type">bool</span> {</span> <span class="line" id="L119"> <span class="tok-kw">return</span> a.fe.equivalent(b.fe);</span> <span class="line" id="L120"> }</span> <span class="line" id="L121"></span> <span class="line" id="L122"> <span class="tok-comment">/// Compute x+y (mod L)</span></span> <span class="line" id="L123"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">add</span>(x: Scalar, y: Scalar) Scalar {</span> <span class="line" id="L124"> <span class="tok-kw">return</span> Scalar{ .fe = x.fe.add(y.fe) };</span> <span class="line" id="L125"> }</span> <span class="line" id="L126"></span> <span class="line" id="L127"> <span class="tok-comment">/// Compute x-y (mod L)</span></span> <span class="line" id="L128"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">sub</span>(x: Scalar, y: Scalar) Scalar {</span> <span class="line" id="L129"> <span class="tok-kw">return</span> Scalar{ .fe = x.fe.sub(y.fe) };</span> <span class="line" id="L130"> }</span> <span class="line" id="L131"></span> <span class="line" id="L132"> <span class="tok-comment">/// Compute 2n (mod L)</span></span> <span class="line" id="L133"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">dbl</span>(n: Scalar) Scalar {</span> <span class="line" id="L134"> <span class="tok-kw">return</span> Scalar{ .fe = n.fe.dbl() };</span> <span class="line" id="L135"> }</span> <span class="line" id="L136"></span> <span class="line" id="L137"> <span class="tok-comment">/// Compute xy (mod L)</span></span> <span class="line" id="L138"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">mul</span>(x: Scalar, y: Scalar) Scalar {</span> <span class="line" id="L139"> <span class="tok-kw">return</span> Scalar{ .fe = x.fe.mul(y.fe) };</span> <span class="line" id="L140"> }</span> <span class="line" id="L141"></span> <span class="line" id="L142"> <span class="tok-comment">/// Compute x^2 (mod L)</span></span> <span class="line" id="L143"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">sq</span>(n: Scalar) Scalar {</span> <span class="line" id="L144"> <span class="tok-kw">return</span> Scalar{ .fe = n.fe.sq() };</span> <span class="line" id="L145"> }</span> <span class="line" id="L146"></span> <span class="line" id="L147"> <span class="tok-comment">/// Compute x^n (mod L)</span></span> <span class="line" id="L148"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">pow</span>(a: Scalar, <span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>, <span class="tok-kw">comptime</span> n: T) Scalar {</span> <span class="line" id="L149"> <span class="tok-kw">return</span> Scalar{ .fe = a.fe.pow(n) };</span> <span class="line" id="L150"> }</span> <span class="line" id="L151"></span> <span class="line" id="L152"> <span class="tok-comment">/// Compute -x (mod L)</span></span> <span class="line" id="L153"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">neg</span>(n: Scalar) Scalar {</span> <span class="line" id="L154"> <span class="tok-kw">return</span> Scalar{ .fe = n.fe.neg() };</span> <span class="line" id="L155"> }</span> <span class="line" id="L156"></span> <span class="line" id="L157"> <span class="tok-comment">/// Compute x^-1 (mod L)</span></span> <span class="line" id="L158"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">invert</span>(n: Scalar) Scalar {</span> <span class="line" id="L159"> <span class="tok-kw">return</span> Scalar{ .fe = n.fe.invert() };</span> <span class="line" id="L160"> }</span> <span class="line" id="L161"></span> <span class="line" id="L162"> <span class="tok-comment">/// Return true if n is a quadratic residue mod L.</span></span> <span class="line" id="L163"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">isSquare</span>(n: Scalar) Scalar {</span> <span class="line" id="L164"> <span class="tok-kw">return</span> n.fe.isSquare();</span> <span class="line" id="L165"> }</span> <span class="line" id="L166"></span> <span class="line" id="L167"> <span class="tok-comment">/// Return the square root of L, or NotSquare if there isn't any solutions.</span></span> <span class="line" id="L168"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">sqrt</span>(n: Scalar) NotSquareError!Scalar {</span> <span class="line" id="L169"> <span class="tok-kw">return</span> Scalar{ .fe = <span class="tok-kw">try</span> n.fe.sqrt() };</span> <span class="line" id="L170"> }</span> <span class="line" id="L171"></span> <span class="line" id="L172"> <span class="tok-comment">/// Return a random scalar < L.</span></span> <span class="line" id="L173"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">random</span>() Scalar {</span> <span class="line" id="L174"> <span class="tok-kw">var</span> s: [<span class="tok-number">48</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L175"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L176"> crypto.random.bytes(&s);</span> <span class="line" id="L177"> <span class="tok-kw">const</span> n = Scalar.fromBytes48(s, .Little);</span> <span class="line" id="L178"> <span class="tok-kw">if</span> (!n.isZero()) {</span> <span class="line" id="L179"> <span class="tok-kw">return</span> n;</span> <span class="line" id="L180"> }</span> <span class="line" id="L181"> }</span> <span class="line" id="L182"> }</span> <span class="line" id="L183">};</span> <span class="line" id="L184"></span> <span class="line" id="L185"><span class="tok-kw">const</span> ScalarDouble = <span class="tok-kw">struct</span> {</span> <span class="line" id="L186"> x1: Fe,</span> <span class="line" id="L187"> x2: Fe,</span> <span class="line" id="L188"> x3: Fe,</span> <span class="line" id="L189"></span> <span class="line" id="L190"> <span class="tok-kw">fn</span> <span class="tok-fn">fromBytes</span>(<span class="tok-kw">comptime</span> bits: <span class="tok-type">usize</span>, s_: [bits / <span class="tok-number">8</span>]<span class="tok-type">u8</span>, endian: std.builtin.Endian) ScalarDouble {</span> <span class="line" id="L191"> debug.assert(bits > <span class="tok-number">0</span> <span class="tok-kw">and</span> bits <= <span class="tok-number">512</span> <span class="tok-kw">and</span> bits >= Fe.saturated_bits <span class="tok-kw">and</span> bits <= Fe.saturated_bits <span class="tok-number">3</span>);</span> <span class="line" id="L192"></span> <span class="line" id="L193"> <span class="tok-kw">var</span> s = s_;</span> <span class="line" id="L194"> <span class="tok-kw">if</span> (endian == .Big) {</span> <span class="line" id="L195"> <span class="tok-kw">for</span> (s_, <span class="tok-number">0</span>..) \|x, i\| s[s.len - <span class="tok-number">1</span> - i] = x;</span> <span class="line" id="L196"> }</span> <span class="line" id="L197"> <span class="tok-kw">var</span> t = ScalarDouble{ .x1 = <span class="tok-null">undefined</span>, .x2 = Fe.zero, .x3 = Fe.zero };</span> <span class="line" id="L198"> {</span> <span class="line" id="L199"> <span class="tok-kw">var</span> b = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} ** encoded_length;</span> <span class="line" id="L200"> <span class="tok-kw">const</span> len = <span class="tok-builtin">@min</span>(s.len, <span class="tok-number">24</span>);</span> <span class="line" id="L201"> b[<span class="tok-number">0</span>..len].* = s[<span class="tok-number">0</span>..len].;</span> <span class="line" id="L202"> t.x1 = Fe.fromBytes(b, .Little) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L203"> }</span> <span class="line" id="L204"> <span class="tok-kw">if</span> (s_.len >= <span class="tok-number">24</span>) {</span> <span class="line" id="L205"> <span class="tok-kw">var</span> b = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} * encoded_length;</span> <span class="line" id="L206"> <span class="tok-kw">const</span> len = <span class="tok-builtin">@min</span>(s.len - <span class="tok-number">24</span>, <span class="tok-number">24</span>);</span> <span class="line" id="L207"> b[<span class="tok-number">0</span>..len].* = s[<span class="tok-number">24</span>..][<span class="tok-number">0</span>..len].;</span> <span class="line" id="L208"> t.x2 = Fe.fromBytes(b, .Little) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L209"> }</span> <span class="line" id="L210"> <span class="tok-kw">if</span> (s_.len >= <span class="tok-number">48</span>) {</span> <span class="line" id="L211"> <span class="tok-kw">var</span> b = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} * encoded_length;</span> <span class="line" id="L212"> <span class="tok-kw">const</span> len = s.len - <span class="tok-number">48</span>;</span> <span class="line" id="L213"> b[<span class="tok-number">0</span>..len].* = s[<span class="tok-number">48</span>..][<span class="tok-number">0</span>..len].;</span> <span class="line" id="L214"> t.x3 = Fe.fromBytes(b, .Little) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L215"> }</span> <span class="line" id="L216"> <span class="tok-kw">return</span> t;</span> <span class="line" id="L217"> }</span> <span class="line" id="L218"></span> <span class="line" id="L219"> <span class="tok-kw">fn</span> <span class="tok-fn">reduce</span>(expanded: ScalarDouble, <span class="tok-kw">comptime</span> bits: <span class="tok-type">usize</span>) Scalar {</span> <span class="line" id="L220"> debug.assert(bits > <span class="tok-number">0</span> <span class="tok-kw">and</span> bits <= Fe.saturated_bits <span class="tok-number">3</span> <span class="tok-kw">and</span> bits <= <span class="tok-number">512</span>);</span> <span class="line" id="L221"> <span class="tok-kw">var</span> fe = expanded.x1;</span> <span class="line" id="L222"> <span class="tok-kw">if</span> (bits >= <span class="tok-number">192</span>) {</span> <span class="line" id="L223"> <span class="tok-kw">const</span> st1 = Fe.fromInt(<span class="tok-number">1</span> << <span class="tok-number">192</span>) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L224"> fe = fe.add(expanded.x2.mul(st1));</span> <span class="line" id="L225"> <span class="tok-kw">if</span> (bits >= <span class="tok-number">384</span>) {</span> <span class="line" id="L226"> <span class="tok-kw">const</span> st2 = st1.sq();</span> <span class="line" id="L227"> fe = fe.add(expanded.x3.mul(st2));</span> <span class="line" id="L228"> }</span> <span class="line" id="L229"> }</span> <span class="line" id="L230"> <span class="tok-kw">return</span> Scalar{ .fe = fe };</span> <span class="line" id="L231"> }</span> <span class="line" id="L232">};</span> <span class="line" id="L233"></span> </code></pre></body> </html>
repos/yazap/docs/src/std/crypto/pcurves	repos/yazap/docs/src/std/crypto/pcurves/secp256k1/field.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/pcurves/secp256k1/field.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> common = <span class="tok-builtin">@import</span>(<span class="tok-str">"../common.zig"</span>);</span> <span class="line" id="L3"></span> <span class="line" id="L4"><span class="tok-kw">const</span> Field = common.Field;</span> <span class="line" id="L5"></span> <span class="line" id="L6"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Fe = Field(.{</span> <span class="line" id="L7"> .fiat = <span class="tok-builtin">@import</span>(<span class="tok-str">"secp256k1_64.zig"</span>),</span> <span class="line" id="L8"> .field_order = <span class="tok-number">115792089237316195423570985008687907853269984665640564039457584007908834671663</span>,</span> <span class="line" id="L9"> .field_bits = <span class="tok-number">256</span>,</span> <span class="line" id="L10"> .saturated_bits = <span class="tok-number">256</span>,</span> <span class="line" id="L11"> .encoded_length = <span class="tok-number">32</span>,</span> <span class="line" id="L12">});</span> <span class="line" id="L13"></span> </code></pre></body> </html>
repos/yazap/docs/src/std/crypto/pcurves	repos/yazap/docs/src/std/crypto/pcurves/secp256k1/secp256k1_64.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/pcurves/secp256k1/secp256k1_64.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-comment">// Autogenerated: 'src/ExtractionOCaml/word_by_word_montgomery' --lang Zig --internal-static --public-function-case camelCase --private-function-case camelCase --public-type-case UpperCamelCase --private-type-case UpperCamelCase --no-prefix-fiat --package-name secp256k1 '' 64 '2^256 - 2^32 - 977' mul square add sub opp from_montgomery to_montgomery nonzero selectznz to_bytes from_bytes one msat divstep divstep_precomp</span> </span> <span class="line" id="L2"><span class="tok-comment">// curve description (via package name): secp256k1</span> </span> <span class="line" id="L3"><span class="tok-comment">// machine_wordsize = 64 (from "64")</span> </span> <span class="line" id="L4"><span class="tok-comment">// requested operations: mul, square, add, sub, opp, from_montgomery, to_montgomery, nonzero, selectznz, to_bytes, from_bytes, one, msat, divstep, divstep_precomp</span> </span> <span class="line" id="L5"><span class="tok-comment">// m = 0xfffffffffffffffffffffffffffffffffffffffffffffffffffffffefffffc2f (from "2^256 - 2^32 - 977")</span> </span> <span class="line" id="L6"><span class="tok-comment">//</span> </span> <span class="line" id="L7"><span class="tok-comment">// NOTE: In addition to the bounds specified above each function, all</span> </span> <span class="line" id="L8"><span class="tok-comment">// functions synthesized for this Montgomery arithmetic require the</span> </span> <span class="line" id="L9"><span class="tok-comment">// input to be strictly less than the prime modulus (m), and also</span> </span> <span class="line" id="L10"><span class="tok-comment">// require the input to be in the unique saturated representation.</span> </span> <span class="line" id="L11"><span class="tok-comment">// All functions also ensure that these two properties are true of</span> </span> <span class="line" id="L12"><span class="tok-comment">// return values.</span> </span> <span class="line" id="L13"><span class="tok-comment">//</span> </span> <span class="line" id="L14"><span class="tok-comment">// Computed values:</span> </span> <span class="line" id="L15"><span class="tok-comment">// eval z = z[0] + (z[1] << 64) + (z[2] << 128) + (z[3] << 192)</span> </span> <span class="line" id="L16"><span class="tok-comment">// bytes_eval z = z[0] + (z[1] << 8) + (z[2] << 16) + (z[3] << 24) + (z[4] << 32) + (z[5] << 40) + (z[6] << 48) + (z[7] << 56) + (z[8] << 64) + (z[9] << 72) + (z[10] << 80) + (z[11] << 88) + (z[12] << 96) + (z[13] << 104) + (z[14] << 112) + (z[15] << 120) + (z[16] << 128) + (z[17] << 136) + (z[18] << 144) + (z[19] << 152) + (z[20] << 160) + (z[21] << 168) + (z[22] << 176) + (z[23] << 184) + (z[24] << 192) + (z[25] << 200) + (z[26] << 208) + (z[27] << 216) + (z[28] << 224) + (z[29] << 232) + (z[30] << 240) + (z[31] << 248)</span> </span> <span class="line" id="L17"><span class="tok-comment">// twos_complement_eval z = let x1 := z[0] + (z[1] << 64) + (z[2] << 128) + (z[3] << 192) in</span> </span> <span class="line" id="L18"><span class="tok-comment">// if x1 & (2^256-1) < 2^255 then x1 & (2^256-1) else (x1 & (2^256-1)) - 2^256</span> </span> <span class="line" id="L19"></span> <span class="line" id="L20"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L21"><span class="tok-kw">const</span> mode = <span class="tok-builtin">@import</span>(<span class="tok-str">"builtin"</span>).mode; <span class="tok-comment">// Checked arithmetic is disabled in non-debug modes to avoid side channels</span> </span> <span class="line" id="L22"></span> <span class="line" id="L23"><span class="tok-comment">// The type MontgomeryDomainFieldElement is a field element in the Montgomery domain.</span> </span> <span class="line" id="L24"><span class="tok-comment">// Bounds: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span> </span> <span class="line" id="L25"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> MontgomeryDomainFieldElement = [<span class="tok-number">4</span>]<span class="tok-type">u64</span>;</span> <span class="line" id="L26"></span> <span class="line" id="L27"><span class="tok-comment">// The type NonMontgomeryDomainFieldElement is a field element NOT in the Montgomery domain.</span> </span> <span class="line" id="L28"><span class="tok-comment">// Bounds: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span> </span> <span class="line" id="L29"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> NonMontgomeryDomainFieldElement = [<span class="tok-number">4</span>]<span class="tok-type">u64</span>;</span> <span class="line" id="L30"></span> <span class="line" id="L31"><span class="tok-comment">/// The function addcarryxU64 is an addition with carry.</span></span> <span class="line" id="L32"><span class="tok-comment">///</span></span> <span class="line" id="L33"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L34"><span class="tok-comment">/// out1 = (arg1 + arg2 + arg3) mod 2^64</span></span> <span class="line" id="L35"><span class="tok-comment">/// out2 = ⌊(arg1 + arg2 + arg3) / 2^64⌋</span></span> <span class="line" id="L36"><span class="tok-comment">///</span></span> <span class="line" id="L37"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L38"><span class="tok-comment">/// arg1: [0x0 ~> 0x1]</span></span> <span class="line" id="L39"><span class="tok-comment">/// arg2: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L40"><span class="tok-comment">/// arg3: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L41"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L42"><span class="tok-comment">/// out1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L43"><span class="tok-comment">/// out2: [0x0 ~> 0x1]</span></span> <span class="line" id="L44"><span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">addcarryxU64</span>(out1: <span class="tok-type">u64</span>, out2: <span class="tok-type">u1</span>, arg1: <span class="tok-type">u1</span>, arg2: <span class="tok-type">u64</span>, arg3: <span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L45"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L46"></span> <span class="line" id="L47"> <span class="tok-kw">const</span> ov1 = <span class="tok-builtin">@addWithOverflow</span>(arg2, arg3);</span> <span class="line" id="L48"> <span class="tok-kw">const</span> ov2 = <span class="tok-builtin">@addWithOverflow</span>(ov1[<span class="tok-number">0</span>], arg1);</span> <span class="line" id="L49"> out1.* = ov2[<span class="tok-number">0</span>];</span> <span class="line" id="L50"> out2.* = ov1[<span class="tok-number">1</span>] \| ov2[<span class="tok-number">1</span>];</span> <span class="line" id="L51">}</span> <span class="line" id="L52"></span> <span class="line" id="L53"><span class="tok-comment">/// The function subborrowxU64 is a subtraction with borrow.</span></span> <span class="line" id="L54"><span class="tok-comment">///</span></span> <span class="line" id="L55"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L56"><span class="tok-comment">/// out1 = (-arg1 + arg2 + -arg3) mod 2^64</span></span> <span class="line" id="L57"><span class="tok-comment">/// out2 = -⌊(-arg1 + arg2 + -arg3) / 2^64⌋</span></span> <span class="line" id="L58"><span class="tok-comment">///</span></span> <span class="line" id="L59"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L60"><span class="tok-comment">/// arg1: [0x0 ~> 0x1]</span></span> <span class="line" id="L61"><span class="tok-comment">/// arg2: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L62"><span class="tok-comment">/// arg3: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L63"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L64"><span class="tok-comment">/// out1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L65"><span class="tok-comment">/// out2: [0x0 ~> 0x1]</span></span> <span class="line" id="L66"><span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">subborrowxU64</span>(out1: <span class="tok-type">u64</span>, out2: <span class="tok-type">u1</span>, arg1: <span class="tok-type">u1</span>, arg2: <span class="tok-type">u64</span>, arg3: <span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L67"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L68"></span> <span class="line" id="L69"> <span class="tok-kw">const</span> ov1 = <span class="tok-builtin">@subWithOverflow</span>(arg2, arg3);</span> <span class="line" id="L70"> <span class="tok-kw">const</span> ov2 = <span class="tok-builtin">@subWithOverflow</span>(ov1[<span class="tok-number">0</span>], arg1);</span> <span class="line" id="L71"> out1.* = ov2[<span class="tok-number">0</span>];</span> <span class="line" id="L72"> out2.* = ov1[<span class="tok-number">1</span>] \| ov2[<span class="tok-number">1</span>];</span> <span class="line" id="L73">}</span> <span class="line" id="L74"></span> <span class="line" id="L75"><span class="tok-comment">/// The function mulxU64 is a multiplication, returning the full double-width result.</span></span> <span class="line" id="L76"><span class="tok-comment">///</span></span> <span class="line" id="L77"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L78"><span class="tok-comment">/// out1 = (arg1 * arg2) mod 2^64</span></span> <span class="line" id="L79"><span class="tok-comment">/// out2 = ⌊arg1 * arg2 / 2^64⌋</span></span> <span class="line" id="L80"><span class="tok-comment">///</span></span> <span class="line" id="L81"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L82"><span class="tok-comment">/// arg1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L83"><span class="tok-comment">/// arg2: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L84"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L85"><span class="tok-comment">/// out1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L86"><span class="tok-comment">/// out2: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L87"><span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">mulxU64</span>(out1: <span class="tok-type">u64</span>, out2: <span class="tok-type">u64</span>, arg1: <span class="tok-type">u64</span>, arg2: <span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L88"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L89"></span> <span class="line" id="L90"> <span class="tok-kw">const</span> x = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, arg1) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, arg2);</span> <span class="line" id="L91"> out1.* = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(x));</span> <span class="line" id="L92"> out2.* = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(x >> <span class="tok-number">64</span>));</span> <span class="line" id="L93">}</span> <span class="line" id="L94"></span> <span class="line" id="L95"><span class="tok-comment">/// The function cmovznzU64 is a single-word conditional move.</span></span> <span class="line" id="L96"><span class="tok-comment">///</span></span> <span class="line" id="L97"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L98"><span class="tok-comment">/// out1 = (if arg1 = 0 then arg2 else arg3)</span></span> <span class="line" id="L99"><span class="tok-comment">///</span></span> <span class="line" id="L100"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L101"><span class="tok-comment">/// arg1: [0x0 ~> 0x1]</span></span> <span class="line" id="L102"><span class="tok-comment">/// arg2: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L103"><span class="tok-comment">/// arg3: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L104"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L105"><span class="tok-comment">/// out1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L106"><span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">cmovznzU64</span>(out1: <span class="tok-type">u64</span>, arg1: <span class="tok-type">u1</span>, arg2: <span class="tok-type">u64</span>, arg3: <span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L107"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L108"></span> <span class="line" id="L109"> <span class="tok-kw">const</span> mask = <span class="tok-number">0</span> -% <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, arg1);</span> <span class="line" id="L110"> out1. = (mask & arg3) \| ((~mask) & arg2);</span> <span class="line" id="L111">}</span> <span class="line" id="L112"></span> <span class="line" id="L113"><span class="tok-comment">/// The function mul multiplies two field elements in the Montgomery domain.</span></span> <span class="line" id="L114"><span class="tok-comment">///</span></span> <span class="line" id="L115"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L116"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L117"><span class="tok-comment">/// 0 ≤ eval arg2 < m</span></span> <span class="line" id="L118"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L119"><span class="tok-comment">/// eval (from_montgomery out1) mod m = (eval (from_montgomery arg1) * eval (from_montgomery arg2)) mod m</span></span> <span class="line" id="L120"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L121"><span class="tok-comment">///</span></span> <span class="line" id="L122"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">mul</span>(out1: MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldElement, arg2: MontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L123"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L124"></span> <span class="line" id="L125"> <span class="tok-kw">const</span> x1 = (arg1[<span class="tok-number">1</span>]);</span> <span class="line" id="L126"> <span class="tok-kw">const</span> x2 = (arg1[<span class="tok-number">2</span>]);</span> <span class="line" id="L127"> <span class="tok-kw">const</span> x3 = (arg1[<span class="tok-number">3</span>]);</span> <span class="line" id="L128"> <span class="tok-kw">const</span> x4 = (arg1[<span class="tok-number">0</span>]);</span> <span class="line" id="L129"> <span class="tok-kw">var</span> x5: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L130"> <span class="tok-kw">var</span> x6: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L131"> mulxU64(&x5, &x6, x4, (arg2[<span class="tok-number">3</span>]));</span> <span class="line" id="L132"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L133"> <span class="tok-kw">var</span> x8: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L134"> mulxU64(&x7, &x8, x4, (arg2[<span class="tok-number">2</span>]));</span> <span class="line" id="L135"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L136"> <span class="tok-kw">var</span> x10: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L137"> mulxU64(&x9, &x10, x4, (arg2[<span class="tok-number">1</span>]));</span> <span class="line" id="L138"> <span class="tok-kw">var</span> x11: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L139"> <span class="tok-kw">var</span> x12: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L140"> mulxU64(&x11, &x12, x4, (arg2[<span class="tok-number">0</span>]));</span> <span class="line" id="L141"> <span class="tok-kw">var</span> x13: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L142"> <span class="tok-kw">var</span> x14: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L143"> addcarryxU64(&x13, &x14, <span class="tok-number">0x0</span>, x12, x9);</span> <span class="line" id="L144"> <span class="tok-kw">var</span> x15: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L145"> <span class="tok-kw">var</span> x16: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L146"> addcarryxU64(&x15, &x16, x14, x10, x7);</span> <span class="line" id="L147"> <span class="tok-kw">var</span> x17: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L148"> <span class="tok-kw">var</span> x18: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L149"> addcarryxU64(&x17, &x18, x16, x8, x5);</span> <span class="line" id="L150"> <span class="tok-kw">const</span> x19 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x18) + x6);</span> <span class="line" id="L151"> <span class="tok-kw">var</span> x20: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L152"> <span class="tok-kw">var</span> x21: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L153"> mulxU64(&x20, &x21, x11, <span class="tok-number">0xd838091dd2253531</span>);</span> <span class="line" id="L154"> <span class="tok-kw">var</span> x22: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L155"> <span class="tok-kw">var</span> x23: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L156"> mulxU64(&x22, &x23, x20, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L157"> <span class="tok-kw">var</span> x24: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L158"> <span class="tok-kw">var</span> x25: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L159"> mulxU64(&x24, &x25, x20, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L160"> <span class="tok-kw">var</span> x26: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L161"> <span class="tok-kw">var</span> x27: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L162"> mulxU64(&x26, &x27, x20, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L163"> <span class="tok-kw">var</span> x28: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L164"> <span class="tok-kw">var</span> x29: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L165"> mulxU64(&x28, &x29, x20, <span class="tok-number">0xfffffffefffffc2f</span>);</span> <span class="line" id="L166"> <span class="tok-kw">var</span> x30: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L167"> <span class="tok-kw">var</span> x31: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L168"> addcarryxU64(&x30, &x31, <span class="tok-number">0x0</span>, x29, x26);</span> <span class="line" id="L169"> <span class="tok-kw">var</span> x32: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L170"> <span class="tok-kw">var</span> x33: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L171"> addcarryxU64(&x32, &x33, x31, x27, x24);</span> <span class="line" id="L172"> <span class="tok-kw">var</span> x34: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L173"> <span class="tok-kw">var</span> x35: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L174"> addcarryxU64(&x34, &x35, x33, x25, x22);</span> <span class="line" id="L175"> <span class="tok-kw">const</span> x36 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x35) + x23);</span> <span class="line" id="L176"> <span class="tok-kw">var</span> x37: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L177"> <span class="tok-kw">var</span> x38: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L178"> addcarryxU64(&x37, &x38, <span class="tok-number">0x0</span>, x11, x28);</span> <span class="line" id="L179"> <span class="tok-kw">var</span> x39: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L180"> <span class="tok-kw">var</span> x40: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L181"> addcarryxU64(&x39, &x40, x38, x13, x30);</span> <span class="line" id="L182"> <span class="tok-kw">var</span> x41: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L183"> <span class="tok-kw">var</span> x42: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L184"> addcarryxU64(&x41, &x42, x40, x15, x32);</span> <span class="line" id="L185"> <span class="tok-kw">var</span> x43: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L186"> <span class="tok-kw">var</span> x44: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L187"> addcarryxU64(&x43, &x44, x42, x17, x34);</span> <span class="line" id="L188"> <span class="tok-kw">var</span> x45: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L189"> <span class="tok-kw">var</span> x46: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L190"> addcarryxU64(&x45, &x46, x44, x19, x36);</span> <span class="line" id="L191"> <span class="tok-kw">var</span> x47: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L192"> <span class="tok-kw">var</span> x48: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L193"> mulxU64(&x47, &x48, x1, (arg2[<span class="tok-number">3</span>]));</span> <span class="line" id="L194"> <span class="tok-kw">var</span> x49: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L195"> <span class="tok-kw">var</span> x50: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L196"> mulxU64(&x49, &x50, x1, (arg2[<span class="tok-number">2</span>]));</span> <span class="line" id="L197"> <span class="tok-kw">var</span> x51: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L198"> <span class="tok-kw">var</span> x52: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L199"> mulxU64(&x51, &x52, x1, (arg2[<span class="tok-number">1</span>]));</span> <span class="line" id="L200"> <span class="tok-kw">var</span> x53: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L201"> <span class="tok-kw">var</span> x54: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L202"> mulxU64(&x53, &x54, x1, (arg2[<span class="tok-number">0</span>]));</span> <span class="line" id="L203"> <span class="tok-kw">var</span> x55: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L204"> <span class="tok-kw">var</span> x56: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L205"> addcarryxU64(&x55, &x56, <span class="tok-number">0x0</span>, x54, x51);</span> <span class="line" id="L206"> <span class="tok-kw">var</span> x57: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L207"> <span class="tok-kw">var</span> x58: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L208"> addcarryxU64(&x57, &x58, x56, x52, x49);</span> <span class="line" id="L209"> <span class="tok-kw">var</span> x59: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L210"> <span class="tok-kw">var</span> x60: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L211"> addcarryxU64(&x59, &x60, x58, x50, x47);</span> <span class="line" id="L212"> <span class="tok-kw">const</span> x61 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x60) + x48);</span> <span class="line" id="L213"> <span class="tok-kw">var</span> x62: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L214"> <span class="tok-kw">var</span> x63: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L215"> addcarryxU64(&x62, &x63, <span class="tok-number">0x0</span>, x39, x53);</span> <span class="line" id="L216"> <span class="tok-kw">var</span> x64: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L217"> <span class="tok-kw">var</span> x65: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L218"> addcarryxU64(&x64, &x65, x63, x41, x55);</span> <span class="line" id="L219"> <span class="tok-kw">var</span> x66: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L220"> <span class="tok-kw">var</span> x67: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L221"> addcarryxU64(&x66, &x67, x65, x43, x57);</span> <span class="line" id="L222"> <span class="tok-kw">var</span> x68: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L223"> <span class="tok-kw">var</span> x69: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L224"> addcarryxU64(&x68, &x69, x67, x45, x59);</span> <span class="line" id="L225"> <span class="tok-kw">var</span> x70: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L226"> <span class="tok-kw">var</span> x71: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L227"> addcarryxU64(&x70, &x71, x69, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x46), x61);</span> <span class="line" id="L228"> <span class="tok-kw">var</span> x72: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L229"> <span class="tok-kw">var</span> x73: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L230"> mulxU64(&x72, &x73, x62, <span class="tok-number">0xd838091dd2253531</span>);</span> <span class="line" id="L231"> <span class="tok-kw">var</span> x74: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L232"> <span class="tok-kw">var</span> x75: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L233"> mulxU64(&x74, &x75, x72, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L234"> <span class="tok-kw">var</span> x76: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L235"> <span class="tok-kw">var</span> x77: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L236"> mulxU64(&x76, &x77, x72, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L237"> <span class="tok-kw">var</span> x78: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L238"> <span class="tok-kw">var</span> x79: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L239"> mulxU64(&x78, &x79, x72, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L240"> <span class="tok-kw">var</span> x80: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L241"> <span class="tok-kw">var</span> x81: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L242"> mulxU64(&x80, &x81, x72, <span class="tok-number">0xfffffffefffffc2f</span>);</span> <span class="line" id="L243"> <span class="tok-kw">var</span> x82: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L244"> <span class="tok-kw">var</span> x83: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L245"> addcarryxU64(&x82, &x83, <span class="tok-number">0x0</span>, x81, x78);</span> <span class="line" id="L246"> <span class="tok-kw">var</span> x84: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L247"> <span class="tok-kw">var</span> x85: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L248"> addcarryxU64(&x84, &x85, x83, x79, x76);</span> <span class="line" id="L249"> <span class="tok-kw">var</span> x86: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L250"> <span class="tok-kw">var</span> x87: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L251"> addcarryxU64(&x86, &x87, x85, x77, x74);</span> <span class="line" id="L252"> <span class="tok-kw">const</span> x88 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x87) + x75);</span> <span class="line" id="L253"> <span class="tok-kw">var</span> x89: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L254"> <span class="tok-kw">var</span> x90: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L255"> addcarryxU64(&x89, &x90, <span class="tok-number">0x0</span>, x62, x80);</span> <span class="line" id="L256"> <span class="tok-kw">var</span> x91: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L257"> <span class="tok-kw">var</span> x92: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L258"> addcarryxU64(&x91, &x92, x90, x64, x82);</span> <span class="line" id="L259"> <span class="tok-kw">var</span> x93: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L260"> <span class="tok-kw">var</span> x94: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L261"> addcarryxU64(&x93, &x94, x92, x66, x84);</span> <span class="line" id="L262"> <span class="tok-kw">var</span> x95: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L263"> <span class="tok-kw">var</span> x96: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L264"> addcarryxU64(&x95, &x96, x94, x68, x86);</span> <span class="line" id="L265"> <span class="tok-kw">var</span> x97: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L266"> <span class="tok-kw">var</span> x98: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L267"> addcarryxU64(&x97, &x98, x96, x70, x88);</span> <span class="line" id="L268"> <span class="tok-kw">const</span> x99 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x98) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x71));</span> <span class="line" id="L269"> <span class="tok-kw">var</span> x100: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L270"> <span class="tok-kw">var</span> x101: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L271"> mulxU64(&x100, &x101, x2, (arg2[<span class="tok-number">3</span>]));</span> <span class="line" id="L272"> <span class="tok-kw">var</span> x102: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L273"> <span class="tok-kw">var</span> x103: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L274"> mulxU64(&x102, &x103, x2, (arg2[<span class="tok-number">2</span>]));</span> <span class="line" id="L275"> <span class="tok-kw">var</span> x104: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L276"> <span class="tok-kw">var</span> x105: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L277"> mulxU64(&x104, &x105, x2, (arg2[<span class="tok-number">1</span>]));</span> <span class="line" id="L278"> <span class="tok-kw">var</span> x106: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L279"> <span class="tok-kw">var</span> x107: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L280"> mulxU64(&x106, &x107, x2, (arg2[<span class="tok-number">0</span>]));</span> <span class="line" id="L281"> <span class="tok-kw">var</span> x108: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L282"> <span class="tok-kw">var</span> x109: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L283"> addcarryxU64(&x108, &x109, <span class="tok-number">0x0</span>, x107, x104);</span> <span class="line" id="L284"> <span class="tok-kw">var</span> x110: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L285"> <span class="tok-kw">var</span> x111: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L286"> addcarryxU64(&x110, &x111, x109, x105, x102);</span> <span class="line" id="L287"> <span class="tok-kw">var</span> x112: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L288"> <span class="tok-kw">var</span> x113: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L289"> addcarryxU64(&x112, &x113, x111, x103, x100);</span> <span class="line" id="L290"> <span class="tok-kw">const</span> x114 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x113) + x101);</span> <span class="line" id="L291"> <span class="tok-kw">var</span> x115: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L292"> <span class="tok-kw">var</span> x116: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L293"> addcarryxU64(&x115, &x116, <span class="tok-number">0x0</span>, x91, x106);</span> <span class="line" id="L294"> <span class="tok-kw">var</span> x117: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L295"> <span class="tok-kw">var</span> x118: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L296"> addcarryxU64(&x117, &x118, x116, x93, x108);</span> <span class="line" id="L297"> <span class="tok-kw">var</span> x119: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L298"> <span class="tok-kw">var</span> x120: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L299"> addcarryxU64(&x119, &x120, x118, x95, x110);</span> <span class="line" id="L300"> <span class="tok-kw">var</span> x121: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L301"> <span class="tok-kw">var</span> x122: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L302"> addcarryxU64(&x121, &x122, x120, x97, x112);</span> <span class="line" id="L303"> <span class="tok-kw">var</span> x123: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L304"> <span class="tok-kw">var</span> x124: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L305"> addcarryxU64(&x123, &x124, x122, x99, x114);</span> <span class="line" id="L306"> <span class="tok-kw">var</span> x125: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L307"> <span class="tok-kw">var</span> x126: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L308"> mulxU64(&x125, &x126, x115, <span class="tok-number">0xd838091dd2253531</span>);</span> <span class="line" id="L309"> <span class="tok-kw">var</span> x127: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L310"> <span class="tok-kw">var</span> x128: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L311"> mulxU64(&x127, &x128, x125, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L312"> <span class="tok-kw">var</span> x129: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L313"> <span class="tok-kw">var</span> x130: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L314"> mulxU64(&x129, &x130, x125, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L315"> <span class="tok-kw">var</span> x131: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L316"> <span class="tok-kw">var</span> x132: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L317"> mulxU64(&x131, &x132, x125, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L318"> <span class="tok-kw">var</span> x133: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L319"> <span class="tok-kw">var</span> x134: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L320"> mulxU64(&x133, &x134, x125, <span class="tok-number">0xfffffffefffffc2f</span>);</span> <span class="line" id="L321"> <span class="tok-kw">var</span> x135: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L322"> <span class="tok-kw">var</span> x136: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L323"> addcarryxU64(&x135, &x136, <span class="tok-number">0x0</span>, x134, x131);</span> <span class="line" id="L324"> <span class="tok-kw">var</span> x137: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L325"> <span class="tok-kw">var</span> x138: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L326"> addcarryxU64(&x137, &x138, x136, x132, x129);</span> <span class="line" id="L327"> <span class="tok-kw">var</span> x139: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L328"> <span class="tok-kw">var</span> x140: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L329"> addcarryxU64(&x139, &x140, x138, x130, x127);</span> <span class="line" id="L330"> <span class="tok-kw">const</span> x141 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x140) + x128);</span> <span class="line" id="L331"> <span class="tok-kw">var</span> x142: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L332"> <span class="tok-kw">var</span> x143: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L333"> addcarryxU64(&x142, &x143, <span class="tok-number">0x0</span>, x115, x133);</span> <span class="line" id="L334"> <span class="tok-kw">var</span> x144: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L335"> <span class="tok-kw">var</span> x145: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L336"> addcarryxU64(&x144, &x145, x143, x117, x135);</span> <span class="line" id="L337"> <span class="tok-kw">var</span> x146: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L338"> <span class="tok-kw">var</span> x147: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L339"> addcarryxU64(&x146, &x147, x145, x119, x137);</span> <span class="line" id="L340"> <span class="tok-kw">var</span> x148: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L341"> <span class="tok-kw">var</span> x149: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L342"> addcarryxU64(&x148, &x149, x147, x121, x139);</span> <span class="line" id="L343"> <span class="tok-kw">var</span> x150: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L344"> <span class="tok-kw">var</span> x151: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L345"> addcarryxU64(&x150, &x151, x149, x123, x141);</span> <span class="line" id="L346"> <span class="tok-kw">const</span> x152 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x151) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x124));</span> <span class="line" id="L347"> <span class="tok-kw">var</span> x153: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L348"> <span class="tok-kw">var</span> x154: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L349"> mulxU64(&x153, &x154, x3, (arg2[<span class="tok-number">3</span>]));</span> <span class="line" id="L350"> <span class="tok-kw">var</span> x155: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L351"> <span class="tok-kw">var</span> x156: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L352"> mulxU64(&x155, &x156, x3, (arg2[<span class="tok-number">2</span>]));</span> <span class="line" id="L353"> <span class="tok-kw">var</span> x157: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L354"> <span class="tok-kw">var</span> x158: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L355"> mulxU64(&x157, &x158, x3, (arg2[<span class="tok-number">1</span>]));</span> <span class="line" id="L356"> <span class="tok-kw">var</span> x159: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L357"> <span class="tok-kw">var</span> x160: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L358"> mulxU64(&x159, &x160, x3, (arg2[<span class="tok-number">0</span>]));</span> <span class="line" id="L359"> <span class="tok-kw">var</span> x161: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L360"> <span class="tok-kw">var</span> x162: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L361"> addcarryxU64(&x161, &x162, <span class="tok-number">0x0</span>, x160, x157);</span> <span class="line" id="L362"> <span class="tok-kw">var</span> x163: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L363"> <span class="tok-kw">var</span> x164: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L364"> addcarryxU64(&x163, &x164, x162, x158, x155);</span> <span class="line" id="L365"> <span class="tok-kw">var</span> x165: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L366"> <span class="tok-kw">var</span> x166: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L367"> addcarryxU64(&x165, &x166, x164, x156, x153);</span> <span class="line" id="L368"> <span class="tok-kw">const</span> x167 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x166) + x154);</span> <span class="line" id="L369"> <span class="tok-kw">var</span> x168: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L370"> <span class="tok-kw">var</span> x169: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L371"> addcarryxU64(&x168, &x169, <span class="tok-number">0x0</span>, x144, x159);</span> <span class="line" id="L372"> <span class="tok-kw">var</span> x170: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L373"> <span class="tok-kw">var</span> x171: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L374"> addcarryxU64(&x170, &x171, x169, x146, x161);</span> <span class="line" id="L375"> <span class="tok-kw">var</span> x172: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L376"> <span class="tok-kw">var</span> x173: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L377"> addcarryxU64(&x172, &x173, x171, x148, x163);</span> <span class="line" id="L378"> <span class="tok-kw">var</span> x174: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L379"> <span class="tok-kw">var</span> x175: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L380"> addcarryxU64(&x174, &x175, x173, x150, x165);</span> <span class="line" id="L381"> <span class="tok-kw">var</span> x176: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L382"> <span class="tok-kw">var</span> x177: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L383"> addcarryxU64(&x176, &x177, x175, x152, x167);</span> <span class="line" id="L384"> <span class="tok-kw">var</span> x178: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L385"> <span class="tok-kw">var</span> x179: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L386"> mulxU64(&x178, &x179, x168, <span class="tok-number">0xd838091dd2253531</span>);</span> <span class="line" id="L387"> <span class="tok-kw">var</span> x180: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L388"> <span class="tok-kw">var</span> x181: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L389"> mulxU64(&x180, &x181, x178, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L390"> <span class="tok-kw">var</span> x182: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L391"> <span class="tok-kw">var</span> x183: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L392"> mulxU64(&x182, &x183, x178, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L393"> <span class="tok-kw">var</span> x184: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L394"> <span class="tok-kw">var</span> x185: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L395"> mulxU64(&x184, &x185, x178, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L396"> <span class="tok-kw">var</span> x186: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L397"> <span class="tok-kw">var</span> x187: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L398"> mulxU64(&x186, &x187, x178, <span class="tok-number">0xfffffffefffffc2f</span>);</span> <span class="line" id="L399"> <span class="tok-kw">var</span> x188: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L400"> <span class="tok-kw">var</span> x189: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L401"> addcarryxU64(&x188, &x189, <span class="tok-number">0x0</span>, x187, x184);</span> <span class="line" id="L402"> <span class="tok-kw">var</span> x190: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L403"> <span class="tok-kw">var</span> x191: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L404"> addcarryxU64(&x190, &x191, x189, x185, x182);</span> <span class="line" id="L405"> <span class="tok-kw">var</span> x192: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L406"> <span class="tok-kw">var</span> x193: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L407"> addcarryxU64(&x192, &x193, x191, x183, x180);</span> <span class="line" id="L408"> <span class="tok-kw">const</span> x194 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x193) + x181);</span> <span class="line" id="L409"> <span class="tok-kw">var</span> x195: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L410"> <span class="tok-kw">var</span> x196: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L411"> addcarryxU64(&x195, &x196, <span class="tok-number">0x0</span>, x168, x186);</span> <span class="line" id="L412"> <span class="tok-kw">var</span> x197: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L413"> <span class="tok-kw">var</span> x198: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L414"> addcarryxU64(&x197, &x198, x196, x170, x188);</span> <span class="line" id="L415"> <span class="tok-kw">var</span> x199: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L416"> <span class="tok-kw">var</span> x200: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L417"> addcarryxU64(&x199, &x200, x198, x172, x190);</span> <span class="line" id="L418"> <span class="tok-kw">var</span> x201: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L419"> <span class="tok-kw">var</span> x202: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L420"> addcarryxU64(&x201, &x202, x200, x174, x192);</span> <span class="line" id="L421"> <span class="tok-kw">var</span> x203: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L422"> <span class="tok-kw">var</span> x204: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L423"> addcarryxU64(&x203, &x204, x202, x176, x194);</span> <span class="line" id="L424"> <span class="tok-kw">const</span> x205 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x204) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x177));</span> <span class="line" id="L425"> <span class="tok-kw">var</span> x206: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L426"> <span class="tok-kw">var</span> x207: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L427"> subborrowxU64(&x206, &x207, <span class="tok-number">0x0</span>, x197, <span class="tok-number">0xfffffffefffffc2f</span>);</span> <span class="line" id="L428"> <span class="tok-kw">var</span> x208: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L429"> <span class="tok-kw">var</span> x209: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L430"> subborrowxU64(&x208, &x209, x207, x199, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L431"> <span class="tok-kw">var</span> x210: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L432"> <span class="tok-kw">var</span> x211: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L433"> subborrowxU64(&x210, &x211, x209, x201, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L434"> <span class="tok-kw">var</span> x212: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L435"> <span class="tok-kw">var</span> x213: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L436"> subborrowxU64(&x212, &x213, x211, x203, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L437"> <span class="tok-kw">var</span> x214: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L438"> <span class="tok-kw">var</span> x215: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L439"> subborrowxU64(&x214, &x215, x213, x205, <span class="tok-number">0x0</span>);</span> <span class="line" id="L440"> <span class="tok-kw">var</span> x216: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L441"> cmovznzU64(&x216, x215, x206, x197);</span> <span class="line" id="L442"> <span class="tok-kw">var</span> x217: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L443"> cmovznzU64(&x217, x215, x208, x199);</span> <span class="line" id="L444"> <span class="tok-kw">var</span> x218: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L445"> cmovznzU64(&x218, x215, x210, x201);</span> <span class="line" id="L446"> <span class="tok-kw">var</span> x219: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L447"> cmovznzU64(&x219, x215, x212, x203);</span> <span class="line" id="L448"> out1[<span class="tok-number">0</span>] = x216;</span> <span class="line" id="L449"> out1[<span class="tok-number">1</span>] = x217;</span> <span class="line" id="L450"> out1[<span class="tok-number">2</span>] = x218;</span> <span class="line" id="L451"> out1[<span class="tok-number">3</span>] = x219;</span> <span class="line" id="L452">}</span> <span class="line" id="L453"></span> <span class="line" id="L454"><span class="tok-comment">/// The function square squares a field element in the Montgomery domain.</span></span> <span class="line" id="L455"><span class="tok-comment">///</span></span> <span class="line" id="L456"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L457"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L458"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L459"><span class="tok-comment">/// eval (from_montgomery out1) mod m = (eval (from_montgomery arg1) eval (from_montgomery arg1)) mod m</span></span> <span class="line" id="L460"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L461"><span class="tok-comment">///</span></span> <span class="line" id="L462"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">square</span>(out1: MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L463"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L464"></span> <span class="line" id="L465"> <span class="tok-kw">const</span> x1 = (arg1[<span class="tok-number">1</span>]);</span> <span class="line" id="L466"> <span class="tok-kw">const</span> x2 = (arg1[<span class="tok-number">2</span>]);</span> <span class="line" id="L467"> <span class="tok-kw">const</span> x3 = (arg1[<span class="tok-number">3</span>]);</span> <span class="line" id="L468"> <span class="tok-kw">const</span> x4 = (arg1[<span class="tok-number">0</span>]);</span> <span class="line" id="L469"> <span class="tok-kw">var</span> x5: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L470"> <span class="tok-kw">var</span> x6: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L471"> mulxU64(&x5, &x6, x4, (arg1[<span class="tok-number">3</span>]));</span> <span class="line" id="L472"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L473"> <span class="tok-kw">var</span> x8: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L474"> mulxU64(&x7, &x8, x4, (arg1[<span class="tok-number">2</span>]));</span> <span class="line" id="L475"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L476"> <span class="tok-kw">var</span> x10: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L477"> mulxU64(&x9, &x10, x4, (arg1[<span class="tok-number">1</span>]));</span> <span class="line" id="L478"> <span class="tok-kw">var</span> x11: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L479"> <span class="tok-kw">var</span> x12: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L480"> mulxU64(&x11, &x12, x4, (arg1[<span class="tok-number">0</span>]));</span> <span class="line" id="L481"> <span class="tok-kw">var</span> x13: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L482"> <span class="tok-kw">var</span> x14: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L483"> addcarryxU64(&x13, &x14, <span class="tok-number">0x0</span>, x12, x9);</span> <span class="line" id="L484"> <span class="tok-kw">var</span> x15: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L485"> <span class="tok-kw">var</span> x16: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L486"> addcarryxU64(&x15, &x16, x14, x10, x7);</span> <span class="line" id="L487"> <span class="tok-kw">var</span> x17: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L488"> <span class="tok-kw">var</span> x18: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L489"> addcarryxU64(&x17, &x18, x16, x8, x5);</span> <span class="line" id="L490"> <span class="tok-kw">const</span> x19 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x18) + x6);</span> <span class="line" id="L491"> <span class="tok-kw">var</span> x20: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L492"> <span class="tok-kw">var</span> x21: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L493"> mulxU64(&x20, &x21, x11, <span class="tok-number">0xd838091dd2253531</span>);</span> <span class="line" id="L494"> <span class="tok-kw">var</span> x22: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L495"> <span class="tok-kw">var</span> x23: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L496"> mulxU64(&x22, &x23, x20, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L497"> <span class="tok-kw">var</span> x24: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L498"> <span class="tok-kw">var</span> x25: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L499"> mulxU64(&x24, &x25, x20, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L500"> <span class="tok-kw">var</span> x26: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L501"> <span class="tok-kw">var</span> x27: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L502"> mulxU64(&x26, &x27, x20, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L503"> <span class="tok-kw">var</span> x28: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L504"> <span class="tok-kw">var</span> x29: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L505"> mulxU64(&x28, &x29, x20, <span class="tok-number">0xfffffffefffffc2f</span>);</span> <span class="line" id="L506"> <span class="tok-kw">var</span> x30: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L507"> <span class="tok-kw">var</span> x31: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L508"> addcarryxU64(&x30, &x31, <span class="tok-number">0x0</span>, x29, x26);</span> <span class="line" id="L509"> <span class="tok-kw">var</span> x32: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L510"> <span class="tok-kw">var</span> x33: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L511"> addcarryxU64(&x32, &x33, x31, x27, x24);</span> <span class="line" id="L512"> <span class="tok-kw">var</span> x34: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L513"> <span class="tok-kw">var</span> x35: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L514"> addcarryxU64(&x34, &x35, x33, x25, x22);</span> <span class="line" id="L515"> <span class="tok-kw">const</span> x36 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x35) + x23);</span> <span class="line" id="L516"> <span class="tok-kw">var</span> x37: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L517"> <span class="tok-kw">var</span> x38: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L518"> addcarryxU64(&x37, &x38, <span class="tok-number">0x0</span>, x11, x28);</span> <span class="line" id="L519"> <span class="tok-kw">var</span> x39: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L520"> <span class="tok-kw">var</span> x40: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L521"> addcarryxU64(&x39, &x40, x38, x13, x30);</span> <span class="line" id="L522"> <span class="tok-kw">var</span> x41: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L523"> <span class="tok-kw">var</span> x42: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L524"> addcarryxU64(&x41, &x42, x40, x15, x32);</span> <span class="line" id="L525"> <span class="tok-kw">var</span> x43: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L526"> <span class="tok-kw">var</span> x44: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L527"> addcarryxU64(&x43, &x44, x42, x17, x34);</span> <span class="line" id="L528"> <span class="tok-kw">var</span> x45: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L529"> <span class="tok-kw">var</span> x46: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L530"> addcarryxU64(&x45, &x46, x44, x19, x36);</span> <span class="line" id="L531"> <span class="tok-kw">var</span> x47: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L532"> <span class="tok-kw">var</span> x48: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L533"> mulxU64(&x47, &x48, x1, (arg1[<span class="tok-number">3</span>]));</span> <span class="line" id="L534"> <span class="tok-kw">var</span> x49: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L535"> <span class="tok-kw">var</span> x50: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L536"> mulxU64(&x49, &x50, x1, (arg1[<span class="tok-number">2</span>]));</span> <span class="line" id="L537"> <span class="tok-kw">var</span> x51: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L538"> <span class="tok-kw">var</span> x52: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L539"> mulxU64(&x51, &x52, x1, (arg1[<span class="tok-number">1</span>]));</span> <span class="line" id="L540"> <span class="tok-kw">var</span> x53: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L541"> <span class="tok-kw">var</span> x54: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L542"> mulxU64(&x53, &x54, x1, (arg1[<span class="tok-number">0</span>]));</span> <span class="line" id="L543"> <span class="tok-kw">var</span> x55: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L544"> <span class="tok-kw">var</span> x56: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L545"> addcarryxU64(&x55, &x56, <span class="tok-number">0x0</span>, x54, x51);</span> <span class="line" id="L546"> <span class="tok-kw">var</span> x57: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L547"> <span class="tok-kw">var</span> x58: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L548"> addcarryxU64(&x57, &x58, x56, x52, x49);</span> <span class="line" id="L549"> <span class="tok-kw">var</span> x59: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L550"> <span class="tok-kw">var</span> x60: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L551"> addcarryxU64(&x59, &x60, x58, x50, x47);</span> <span class="line" id="L552"> <span class="tok-kw">const</span> x61 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x60) + x48);</span> <span class="line" id="L553"> <span class="tok-kw">var</span> x62: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L554"> <span class="tok-kw">var</span> x63: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L555"> addcarryxU64(&x62, &x63, <span class="tok-number">0x0</span>, x39, x53);</span> <span class="line" id="L556"> <span class="tok-kw">var</span> x64: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L557"> <span class="tok-kw">var</span> x65: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L558"> addcarryxU64(&x64, &x65, x63, x41, x55);</span> <span class="line" id="L559"> <span class="tok-kw">var</span> x66: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L560"> <span class="tok-kw">var</span> x67: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L561"> addcarryxU64(&x66, &x67, x65, x43, x57);</span> <span class="line" id="L562"> <span class="tok-kw">var</span> x68: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L563"> <span class="tok-kw">var</span> x69: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L564"> addcarryxU64(&x68, &x69, x67, x45, x59);</span> <span class="line" id="L565"> <span class="tok-kw">var</span> x70: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L566"> <span class="tok-kw">var</span> x71: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L567"> addcarryxU64(&x70, &x71, x69, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x46), x61);</span> <span class="line" id="L568"> <span class="tok-kw">var</span> x72: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L569"> <span class="tok-kw">var</span> x73: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L570"> mulxU64(&x72, &x73, x62, <span class="tok-number">0xd838091dd2253531</span>);</span> <span class="line" id="L571"> <span class="tok-kw">var</span> x74: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L572"> <span class="tok-kw">var</span> x75: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L573"> mulxU64(&x74, &x75, x72, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L574"> <span class="tok-kw">var</span> x76: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L575"> <span class="tok-kw">var</span> x77: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L576"> mulxU64(&x76, &x77, x72, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L577"> <span class="tok-kw">var</span> x78: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L578"> <span class="tok-kw">var</span> x79: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L579"> mulxU64(&x78, &x79, x72, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L580"> <span class="tok-kw">var</span> x80: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L581"> <span class="tok-kw">var</span> x81: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L582"> mulxU64(&x80, &x81, x72, <span class="tok-number">0xfffffffefffffc2f</span>);</span> <span class="line" id="L583"> <span class="tok-kw">var</span> x82: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L584"> <span class="tok-kw">var</span> x83: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L585"> addcarryxU64(&x82, &x83, <span class="tok-number">0x0</span>, x81, x78);</span> <span class="line" id="L586"> <span class="tok-kw">var</span> x84: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L587"> <span class="tok-kw">var</span> x85: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L588"> addcarryxU64(&x84, &x85, x83, x79, x76);</span> <span class="line" id="L589"> <span class="tok-kw">var</span> x86: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L590"> <span class="tok-kw">var</span> x87: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L591"> addcarryxU64(&x86, &x87, x85, x77, x74);</span> <span class="line" id="L592"> <span class="tok-kw">const</span> x88 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x87) + x75);</span> <span class="line" id="L593"> <span class="tok-kw">var</span> x89: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L594"> <span class="tok-kw">var</span> x90: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L595"> addcarryxU64(&x89, &x90, <span class="tok-number">0x0</span>, x62, x80);</span> <span class="line" id="L596"> <span class="tok-kw">var</span> x91: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L597"> <span class="tok-kw">var</span> x92: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L598"> addcarryxU64(&x91, &x92, x90, x64, x82);</span> <span class="line" id="L599"> <span class="tok-kw">var</span> x93: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L600"> <span class="tok-kw">var</span> x94: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L601"> addcarryxU64(&x93, &x94, x92, x66, x84);</span> <span class="line" id="L602"> <span class="tok-kw">var</span> x95: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L603"> <span class="tok-kw">var</span> x96: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L604"> addcarryxU64(&x95, &x96, x94, x68, x86);</span> <span class="line" id="L605"> <span class="tok-kw">var</span> x97: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L606"> <span class="tok-kw">var</span> x98: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L607"> addcarryxU64(&x97, &x98, x96, x70, x88);</span> <span class="line" id="L608"> <span class="tok-kw">const</span> x99 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x98) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x71));</span> <span class="line" id="L609"> <span class="tok-kw">var</span> x100: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L610"> <span class="tok-kw">var</span> x101: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L611"> mulxU64(&x100, &x101, x2, (arg1[<span class="tok-number">3</span>]));</span> <span class="line" id="L612"> <span class="tok-kw">var</span> x102: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L613"> <span class="tok-kw">var</span> x103: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L614"> mulxU64(&x102, &x103, x2, (arg1[<span class="tok-number">2</span>]));</span> <span class="line" id="L615"> <span class="tok-kw">var</span> x104: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L616"> <span class="tok-kw">var</span> x105: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L617"> mulxU64(&x104, &x105, x2, (arg1[<span class="tok-number">1</span>]));</span> <span class="line" id="L618"> <span class="tok-kw">var</span> x106: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L619"> <span class="tok-kw">var</span> x107: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L620"> mulxU64(&x106, &x107, x2, (arg1[<span class="tok-number">0</span>]));</span> <span class="line" id="L621"> <span class="tok-kw">var</span> x108: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L622"> <span class="tok-kw">var</span> x109: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L623"> addcarryxU64(&x108, &x109, <span class="tok-number">0x0</span>, x107, x104);</span> <span class="line" id="L624"> <span class="tok-kw">var</span> x110: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L625"> <span class="tok-kw">var</span> x111: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L626"> addcarryxU64(&x110, &x111, x109, x105, x102);</span> <span class="line" id="L627"> <span class="tok-kw">var</span> x112: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L628"> <span class="tok-kw">var</span> x113: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L629"> addcarryxU64(&x112, &x113, x111, x103, x100);</span> <span class="line" id="L630"> <span class="tok-kw">const</span> x114 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x113) + x101);</span> <span class="line" id="L631"> <span class="tok-kw">var</span> x115: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L632"> <span class="tok-kw">var</span> x116: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L633"> addcarryxU64(&x115, &x116, <span class="tok-number">0x0</span>, x91, x106);</span> <span class="line" id="L634"> <span class="tok-kw">var</span> x117: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L635"> <span class="tok-kw">var</span> x118: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L636"> addcarryxU64(&x117, &x118, x116, x93, x108);</span> <span class="line" id="L637"> <span class="tok-kw">var</span> x119: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L638"> <span class="tok-kw">var</span> x120: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L639"> addcarryxU64(&x119, &x120, x118, x95, x110);</span> <span class="line" id="L640"> <span class="tok-kw">var</span> x121: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L641"> <span class="tok-kw">var</span> x122: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L642"> addcarryxU64(&x121, &x122, x120, x97, x112);</span> <span class="line" id="L643"> <span class="tok-kw">var</span> x123: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L644"> <span class="tok-kw">var</span> x124: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L645"> addcarryxU64(&x123, &x124, x122, x99, x114);</span> <span class="line" id="L646"> <span class="tok-kw">var</span> x125: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L647"> <span class="tok-kw">var</span> x126: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L648"> mulxU64(&x125, &x126, x115, <span class="tok-number">0xd838091dd2253531</span>);</span> <span class="line" id="L649"> <span class="tok-kw">var</span> x127: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L650"> <span class="tok-kw">var</span> x128: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L651"> mulxU64(&x127, &x128, x125, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L652"> <span class="tok-kw">var</span> x129: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L653"> <span class="tok-kw">var</span> x130: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L654"> mulxU64(&x129, &x130, x125, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L655"> <span class="tok-kw">var</span> x131: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L656"> <span class="tok-kw">var</span> x132: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L657"> mulxU64(&x131, &x132, x125, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L658"> <span class="tok-kw">var</span> x133: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L659"> <span class="tok-kw">var</span> x134: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L660"> mulxU64(&x133, &x134, x125, <span class="tok-number">0xfffffffefffffc2f</span>);</span> <span class="line" id="L661"> <span class="tok-kw">var</span> x135: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L662"> <span class="tok-kw">var</span> x136: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L663"> addcarryxU64(&x135, &x136, <span class="tok-number">0x0</span>, x134, x131);</span> <span class="line" id="L664"> <span class="tok-kw">var</span> x137: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L665"> <span class="tok-kw">var</span> x138: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L666"> addcarryxU64(&x137, &x138, x136, x132, x129);</span> <span class="line" id="L667"> <span class="tok-kw">var</span> x139: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L668"> <span class="tok-kw">var</span> x140: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L669"> addcarryxU64(&x139, &x140, x138, x130, x127);</span> <span class="line" id="L670"> <span class="tok-kw">const</span> x141 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x140) + x128);</span> <span class="line" id="L671"> <span class="tok-kw">var</span> x142: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L672"> <span class="tok-kw">var</span> x143: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L673"> addcarryxU64(&x142, &x143, <span class="tok-number">0x0</span>, x115, x133);</span> <span class="line" id="L674"> <span class="tok-kw">var</span> x144: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L675"> <span class="tok-kw">var</span> x145: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L676"> addcarryxU64(&x144, &x145, x143, x117, x135);</span> <span class="line" id="L677"> <span class="tok-kw">var</span> x146: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L678"> <span class="tok-kw">var</span> x147: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L679"> addcarryxU64(&x146, &x147, x145, x119, x137);</span> <span class="line" id="L680"> <span class="tok-kw">var</span> x148: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L681"> <span class="tok-kw">var</span> x149: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L682"> addcarryxU64(&x148, &x149, x147, x121, x139);</span> <span class="line" id="L683"> <span class="tok-kw">var</span> x150: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L684"> <span class="tok-kw">var</span> x151: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L685"> addcarryxU64(&x150, &x151, x149, x123, x141);</span> <span class="line" id="L686"> <span class="tok-kw">const</span> x152 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x151) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x124));</span> <span class="line" id="L687"> <span class="tok-kw">var</span> x153: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L688"> <span class="tok-kw">var</span> x154: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L689"> mulxU64(&x153, &x154, x3, (arg1[<span class="tok-number">3</span>]));</span> <span class="line" id="L690"> <span class="tok-kw">var</span> x155: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L691"> <span class="tok-kw">var</span> x156: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L692"> mulxU64(&x155, &x156, x3, (arg1[<span class="tok-number">2</span>]));</span> <span class="line" id="L693"> <span class="tok-kw">var</span> x157: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L694"> <span class="tok-kw">var</span> x158: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L695"> mulxU64(&x157, &x158, x3, (arg1[<span class="tok-number">1</span>]));</span> <span class="line" id="L696"> <span class="tok-kw">var</span> x159: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L697"> <span class="tok-kw">var</span> x160: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L698"> mulxU64(&x159, &x160, x3, (arg1[<span class="tok-number">0</span>]));</span> <span class="line" id="L699"> <span class="tok-kw">var</span> x161: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L700"> <span class="tok-kw">var</span> x162: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L701"> addcarryxU64(&x161, &x162, <span class="tok-number">0x0</span>, x160, x157);</span> <span class="line" id="L702"> <span class="tok-kw">var</span> x163: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L703"> <span class="tok-kw">var</span> x164: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L704"> addcarryxU64(&x163, &x164, x162, x158, x155);</span> <span class="line" id="L705"> <span class="tok-kw">var</span> x165: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L706"> <span class="tok-kw">var</span> x166: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L707"> addcarryxU64(&x165, &x166, x164, x156, x153);</span> <span class="line" id="L708"> <span class="tok-kw">const</span> x167 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x166) + x154);</span> <span class="line" id="L709"> <span class="tok-kw">var</span> x168: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L710"> <span class="tok-kw">var</span> x169: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L711"> addcarryxU64(&x168, &x169, <span class="tok-number">0x0</span>, x144, x159);</span> <span class="line" id="L712"> <span class="tok-kw">var</span> x170: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L713"> <span class="tok-kw">var</span> x171: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L714"> addcarryxU64(&x170, &x171, x169, x146, x161);</span> <span class="line" id="L715"> <span class="tok-kw">var</span> x172: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L716"> <span class="tok-kw">var</span> x173: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L717"> addcarryxU64(&x172, &x173, x171, x148, x163);</span> <span class="line" id="L718"> <span class="tok-kw">var</span> x174: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L719"> <span class="tok-kw">var</span> x175: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L720"> addcarryxU64(&x174, &x175, x173, x150, x165);</span> <span class="line" id="L721"> <span class="tok-kw">var</span> x176: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L722"> <span class="tok-kw">var</span> x177: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L723"> addcarryxU64(&x176, &x177, x175, x152, x167);</span> <span class="line" id="L724"> <span class="tok-kw">var</span> x178: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L725"> <span class="tok-kw">var</span> x179: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L726"> mulxU64(&x178, &x179, x168, <span class="tok-number">0xd838091dd2253531</span>);</span> <span class="line" id="L727"> <span class="tok-kw">var</span> x180: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L728"> <span class="tok-kw">var</span> x181: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L729"> mulxU64(&x180, &x181, x178, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L730"> <span class="tok-kw">var</span> x182: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L731"> <span class="tok-kw">var</span> x183: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L732"> mulxU64(&x182, &x183, x178, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L733"> <span class="tok-kw">var</span> x184: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L734"> <span class="tok-kw">var</span> x185: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L735"> mulxU64(&x184, &x185, x178, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L736"> <span class="tok-kw">var</span> x186: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L737"> <span class="tok-kw">var</span> x187: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L738"> mulxU64(&x186, &x187, x178, <span class="tok-number">0xfffffffefffffc2f</span>);</span> <span class="line" id="L739"> <span class="tok-kw">var</span> x188: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L740"> <span class="tok-kw">var</span> x189: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L741"> addcarryxU64(&x188, &x189, <span class="tok-number">0x0</span>, x187, x184);</span> <span class="line" id="L742"> <span class="tok-kw">var</span> x190: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L743"> <span class="tok-kw">var</span> x191: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L744"> addcarryxU64(&x190, &x191, x189, x185, x182);</span> <span class="line" id="L745"> <span class="tok-kw">var</span> x192: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L746"> <span class="tok-kw">var</span> x193: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L747"> addcarryxU64(&x192, &x193, x191, x183, x180);</span> <span class="line" id="L748"> <span class="tok-kw">const</span> x194 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x193) + x181);</span> <span class="line" id="L749"> <span class="tok-kw">var</span> x195: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L750"> <span class="tok-kw">var</span> x196: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L751"> addcarryxU64(&x195, &x196, <span class="tok-number">0x0</span>, x168, x186);</span> <span class="line" id="L752"> <span class="tok-kw">var</span> x197: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L753"> <span class="tok-kw">var</span> x198: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L754"> addcarryxU64(&x197, &x198, x196, x170, x188);</span> <span class="line" id="L755"> <span class="tok-kw">var</span> x199: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L756"> <span class="tok-kw">var</span> x200: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L757"> addcarryxU64(&x199, &x200, x198, x172, x190);</span> <span class="line" id="L758"> <span class="tok-kw">var</span> x201: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L759"> <span class="tok-kw">var</span> x202: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L760"> addcarryxU64(&x201, &x202, x200, x174, x192);</span> <span class="line" id="L761"> <span class="tok-kw">var</span> x203: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L762"> <span class="tok-kw">var</span> x204: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L763"> addcarryxU64(&x203, &x204, x202, x176, x194);</span> <span class="line" id="L764"> <span class="tok-kw">const</span> x205 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x204) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x177));</span> <span class="line" id="L765"> <span class="tok-kw">var</span> x206: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L766"> <span class="tok-kw">var</span> x207: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L767"> subborrowxU64(&x206, &x207, <span class="tok-number">0x0</span>, x197, <span class="tok-number">0xfffffffefffffc2f</span>);</span> <span class="line" id="L768"> <span class="tok-kw">var</span> x208: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L769"> <span class="tok-kw">var</span> x209: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L770"> subborrowxU64(&x208, &x209, x207, x199, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L771"> <span class="tok-kw">var</span> x210: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L772"> <span class="tok-kw">var</span> x211: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L773"> subborrowxU64(&x210, &x211, x209, x201, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L774"> <span class="tok-kw">var</span> x212: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L775"> <span class="tok-kw">var</span> x213: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L776"> subborrowxU64(&x212, &x213, x211, x203, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L777"> <span class="tok-kw">var</span> x214: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L778"> <span class="tok-kw">var</span> x215: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L779"> subborrowxU64(&x214, &x215, x213, x205, <span class="tok-number">0x0</span>);</span> <span class="line" id="L780"> <span class="tok-kw">var</span> x216: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L781"> cmovznzU64(&x216, x215, x206, x197);</span> <span class="line" id="L782"> <span class="tok-kw">var</span> x217: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L783"> cmovznzU64(&x217, x215, x208, x199);</span> <span class="line" id="L784"> <span class="tok-kw">var</span> x218: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L785"> cmovznzU64(&x218, x215, x210, x201);</span> <span class="line" id="L786"> <span class="tok-kw">var</span> x219: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L787"> cmovznzU64(&x219, x215, x212, x203);</span> <span class="line" id="L788"> out1[<span class="tok-number">0</span>] = x216;</span> <span class="line" id="L789"> out1[<span class="tok-number">1</span>] = x217;</span> <span class="line" id="L790"> out1[<span class="tok-number">2</span>] = x218;</span> <span class="line" id="L791"> out1[<span class="tok-number">3</span>] = x219;</span> <span class="line" id="L792">}</span> <span class="line" id="L793"></span> <span class="line" id="L794"><span class="tok-comment">/// The function add adds two field elements in the Montgomery domain.</span></span> <span class="line" id="L795"><span class="tok-comment">///</span></span> <span class="line" id="L796"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L797"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L798"><span class="tok-comment">/// 0 ≤ eval arg2 < m</span></span> <span class="line" id="L799"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L800"><span class="tok-comment">/// eval (from_montgomery out1) mod m = (eval (from_montgomery arg1) + eval (from_montgomery arg2)) mod m</span></span> <span class="line" id="L801"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L802"><span class="tok-comment">///</span></span> <span class="line" id="L803"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">add</span>(out1: MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldElement, arg2: MontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L804"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L805"></span> <span class="line" id="L806"> <span class="tok-kw">var</span> x1: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L807"> <span class="tok-kw">var</span> x2: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L808"> addcarryxU64(&x1, &x2, <span class="tok-number">0x0</span>, (arg1[<span class="tok-number">0</span>]), (arg2[<span class="tok-number">0</span>]));</span> <span class="line" id="L809"> <span class="tok-kw">var</span> x3: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L810"> <span class="tok-kw">var</span> x4: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L811"> addcarryxU64(&x3, &x4, x2, (arg1[<span class="tok-number">1</span>]), (arg2[<span class="tok-number">1</span>]));</span> <span class="line" id="L812"> <span class="tok-kw">var</span> x5: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L813"> <span class="tok-kw">var</span> x6: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L814"> addcarryxU64(&x5, &x6, x4, (arg1[<span class="tok-number">2</span>]), (arg2[<span class="tok-number">2</span>]));</span> <span class="line" id="L815"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L816"> <span class="tok-kw">var</span> x8: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L817"> addcarryxU64(&x7, &x8, x6, (arg1[<span class="tok-number">3</span>]), (arg2[<span class="tok-number">3</span>]));</span> <span class="line" id="L818"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L819"> <span class="tok-kw">var</span> x10: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L820"> subborrowxU64(&x9, &x10, <span class="tok-number">0x0</span>, x1, <span class="tok-number">0xfffffffefffffc2f</span>);</span> <span class="line" id="L821"> <span class="tok-kw">var</span> x11: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L822"> <span class="tok-kw">var</span> x12: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L823"> subborrowxU64(&x11, &x12, x10, x3, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L824"> <span class="tok-kw">var</span> x13: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L825"> <span class="tok-kw">var</span> x14: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L826"> subborrowxU64(&x13, &x14, x12, x5, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L827"> <span class="tok-kw">var</span> x15: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L828"> <span class="tok-kw">var</span> x16: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L829"> subborrowxU64(&x15, &x16, x14, x7, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L830"> <span class="tok-kw">var</span> x17: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L831"> <span class="tok-kw">var</span> x18: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L832"> subborrowxU64(&x17, &x18, x16, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x8), <span class="tok-number">0x0</span>);</span> <span class="line" id="L833"> <span class="tok-kw">var</span> x19: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L834"> cmovznzU64(&x19, x18, x9, x1);</span> <span class="line" id="L835"> <span class="tok-kw">var</span> x20: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L836"> cmovznzU64(&x20, x18, x11, x3);</span> <span class="line" id="L837"> <span class="tok-kw">var</span> x21: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L838"> cmovznzU64(&x21, x18, x13, x5);</span> <span class="line" id="L839"> <span class="tok-kw">var</span> x22: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L840"> cmovznzU64(&x22, x18, x15, x7);</span> <span class="line" id="L841"> out1[<span class="tok-number">0</span>] = x19;</span> <span class="line" id="L842"> out1[<span class="tok-number">1</span>] = x20;</span> <span class="line" id="L843"> out1[<span class="tok-number">2</span>] = x21;</span> <span class="line" id="L844"> out1[<span class="tok-number">3</span>] = x22;</span> <span class="line" id="L845">}</span> <span class="line" id="L846"></span> <span class="line" id="L847"><span class="tok-comment">/// The function sub subtracts two field elements in the Montgomery domain.</span></span> <span class="line" id="L848"><span class="tok-comment">///</span></span> <span class="line" id="L849"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L850"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L851"><span class="tok-comment">/// 0 ≤ eval arg2 < m</span></span> <span class="line" id="L852"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L853"><span class="tok-comment">/// eval (from_montgomery out1) mod m = (eval (from_montgomery arg1) - eval (from_montgomery arg2)) mod m</span></span> <span class="line" id="L854"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L855"><span class="tok-comment">///</span></span> <span class="line" id="L856"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">sub</span>(out1: MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldElement, arg2: MontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L857"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L858"></span> <span class="line" id="L859"> <span class="tok-kw">var</span> x1: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L860"> <span class="tok-kw">var</span> x2: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L861"> subborrowxU64(&x1, &x2, <span class="tok-number">0x0</span>, (arg1[<span class="tok-number">0</span>]), (arg2[<span class="tok-number">0</span>]));</span> <span class="line" id="L862"> <span class="tok-kw">var</span> x3: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L863"> <span class="tok-kw">var</span> x4: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L864"> subborrowxU64(&x3, &x4, x2, (arg1[<span class="tok-number">1</span>]), (arg2[<span class="tok-number">1</span>]));</span> <span class="line" id="L865"> <span class="tok-kw">var</span> x5: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L866"> <span class="tok-kw">var</span> x6: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L867"> subborrowxU64(&x5, &x6, x4, (arg1[<span class="tok-number">2</span>]), (arg2[<span class="tok-number">2</span>]));</span> <span class="line" id="L868"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L869"> <span class="tok-kw">var</span> x8: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L870"> subborrowxU64(&x7, &x8, x6, (arg1[<span class="tok-number">3</span>]), (arg2[<span class="tok-number">3</span>]));</span> <span class="line" id="L871"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L872"> cmovznzU64(&x9, x8, <span class="tok-number">0x0</span>, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L873"> <span class="tok-kw">var</span> x10: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L874"> <span class="tok-kw">var</span> x11: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L875"> addcarryxU64(&x10, &x11, <span class="tok-number">0x0</span>, x1, (x9 & <span class="tok-number">0xfffffffefffffc2f</span>));</span> <span class="line" id="L876"> <span class="tok-kw">var</span> x12: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L877"> <span class="tok-kw">var</span> x13: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L878"> addcarryxU64(&x12, &x13, x11, x3, x9);</span> <span class="line" id="L879"> <span class="tok-kw">var</span> x14: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L880"> <span class="tok-kw">var</span> x15: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L881"> addcarryxU64(&x14, &x15, x13, x5, x9);</span> <span class="line" id="L882"> <span class="tok-kw">var</span> x16: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L883"> <span class="tok-kw">var</span> x17: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L884"> addcarryxU64(&x16, &x17, x15, x7, x9);</span> <span class="line" id="L885"> out1[<span class="tok-number">0</span>] = x10;</span> <span class="line" id="L886"> out1[<span class="tok-number">1</span>] = x12;</span> <span class="line" id="L887"> out1[<span class="tok-number">2</span>] = x14;</span> <span class="line" id="L888"> out1[<span class="tok-number">3</span>] = x16;</span> <span class="line" id="L889">}</span> <span class="line" id="L890"></span> <span class="line" id="L891"><span class="tok-comment">/// The function opp negates a field element in the Montgomery domain.</span></span> <span class="line" id="L892"><span class="tok-comment">///</span></span> <span class="line" id="L893"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L894"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L895"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L896"><span class="tok-comment">/// eval (from_montgomery out1) mod m = -eval (from_montgomery arg1) mod m</span></span> <span class="line" id="L897"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L898"><span class="tok-comment">///</span></span> <span class="line" id="L899"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">opp</span>(out1: MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L900"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L901"></span> <span class="line" id="L902"> <span class="tok-kw">var</span> x1: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L903"> <span class="tok-kw">var</span> x2: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L904"> subborrowxU64(&x1, &x2, <span class="tok-number">0x0</span>, <span class="tok-number">0x0</span>, (arg1[<span class="tok-number">0</span>]));</span> <span class="line" id="L905"> <span class="tok-kw">var</span> x3: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L906"> <span class="tok-kw">var</span> x4: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L907"> subborrowxU64(&x3, &x4, x2, <span class="tok-number">0x0</span>, (arg1[<span class="tok-number">1</span>]));</span> <span class="line" id="L908"> <span class="tok-kw">var</span> x5: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L909"> <span class="tok-kw">var</span> x6: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L910"> subborrowxU64(&x5, &x6, x4, <span class="tok-number">0x0</span>, (arg1[<span class="tok-number">2</span>]));</span> <span class="line" id="L911"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L912"> <span class="tok-kw">var</span> x8: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L913"> subborrowxU64(&x7, &x8, x6, <span class="tok-number">0x0</span>, (arg1[<span class="tok-number">3</span>]));</span> <span class="line" id="L914"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L915"> cmovznzU64(&x9, x8, <span class="tok-number">0x0</span>, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L916"> <span class="tok-kw">var</span> x10: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L917"> <span class="tok-kw">var</span> x11: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L918"> addcarryxU64(&x10, &x11, <span class="tok-number">0x0</span>, x1, (x9 & <span class="tok-number">0xfffffffefffffc2f</span>));</span> <span class="line" id="L919"> <span class="tok-kw">var</span> x12: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L920"> <span class="tok-kw">var</span> x13: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L921"> addcarryxU64(&x12, &x13, x11, x3, x9);</span> <span class="line" id="L922"> <span class="tok-kw">var</span> x14: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L923"> <span class="tok-kw">var</span> x15: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L924"> addcarryxU64(&x14, &x15, x13, x5, x9);</span> <span class="line" id="L925"> <span class="tok-kw">var</span> x16: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L926"> <span class="tok-kw">var</span> x17: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L927"> addcarryxU64(&x16, &x17, x15, x7, x9);</span> <span class="line" id="L928"> out1[<span class="tok-number">0</span>] = x10;</span> <span class="line" id="L929"> out1[<span class="tok-number">1</span>] = x12;</span> <span class="line" id="L930"> out1[<span class="tok-number">2</span>] = x14;</span> <span class="line" id="L931"> out1[<span class="tok-number">3</span>] = x16;</span> <span class="line" id="L932">}</span> <span class="line" id="L933"></span> <span class="line" id="L934"><span class="tok-comment">/// The function fromMontgomery translates a field element out of the Montgomery domain.</span></span> <span class="line" id="L935"><span class="tok-comment">///</span></span> <span class="line" id="L936"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L937"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L938"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L939"><span class="tok-comment">/// eval out1 mod m = (eval arg1 * ((2^64)⁻¹ mod m)^4) mod m</span></span> <span class="line" id="L940"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L941"><span class="tok-comment">///</span></span> <span class="line" id="L942"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromMontgomery</span>(out1: NonMontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L943"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L944"></span> <span class="line" id="L945"> <span class="tok-kw">const</span> x1 = (arg1[<span class="tok-number">0</span>]);</span> <span class="line" id="L946"> <span class="tok-kw">var</span> x2: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L947"> <span class="tok-kw">var</span> x3: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L948"> mulxU64(&x2, &x3, x1, <span class="tok-number">0xd838091dd2253531</span>);</span> <span class="line" id="L949"> <span class="tok-kw">var</span> x4: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L950"> <span class="tok-kw">var</span> x5: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L951"> mulxU64(&x4, &x5, x2, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L952"> <span class="tok-kw">var</span> x6: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L953"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L954"> mulxU64(&x6, &x7, x2, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L955"> <span class="tok-kw">var</span> x8: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L956"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L957"> mulxU64(&x8, &x9, x2, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L958"> <span class="tok-kw">var</span> x10: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L959"> <span class="tok-kw">var</span> x11: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L960"> mulxU64(&x10, &x11, x2, <span class="tok-number">0xfffffffefffffc2f</span>);</span> <span class="line" id="L961"> <span class="tok-kw">var</span> x12: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L962"> <span class="tok-kw">var</span> x13: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L963"> addcarryxU64(&x12, &x13, <span class="tok-number">0x0</span>, x11, x8);</span> <span class="line" id="L964"> <span class="tok-kw">var</span> x14: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L965"> <span class="tok-kw">var</span> x15: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L966"> addcarryxU64(&x14, &x15, x13, x9, x6);</span> <span class="line" id="L967"> <span class="tok-kw">var</span> x16: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L968"> <span class="tok-kw">var</span> x17: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L969"> addcarryxU64(&x16, &x17, x15, x7, x4);</span> <span class="line" id="L970"> <span class="tok-kw">var</span> x18: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L971"> <span class="tok-kw">var</span> x19: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L972"> addcarryxU64(&x18, &x19, <span class="tok-number">0x0</span>, x1, x10);</span> <span class="line" id="L973"> <span class="tok-kw">var</span> x20: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L974"> <span class="tok-kw">var</span> x21: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L975"> addcarryxU64(&x20, &x21, x19, <span class="tok-number">0x0</span>, x12);</span> <span class="line" id="L976"> <span class="tok-kw">var</span> x22: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L977"> <span class="tok-kw">var</span> x23: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L978"> addcarryxU64(&x22, &x23, x21, <span class="tok-number">0x0</span>, x14);</span> <span class="line" id="L979"> <span class="tok-kw">var</span> x24: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L980"> <span class="tok-kw">var</span> x25: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L981"> addcarryxU64(&x24, &x25, x23, <span class="tok-number">0x0</span>, x16);</span> <span class="line" id="L982"> <span class="tok-kw">var</span> x26: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L983"> <span class="tok-kw">var</span> x27: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L984"> addcarryxU64(&x26, &x27, x25, <span class="tok-number">0x0</span>, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x17) + x5));</span> <span class="line" id="L985"> <span class="tok-kw">var</span> x28: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L986"> <span class="tok-kw">var</span> x29: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L987"> addcarryxU64(&x28, &x29, <span class="tok-number">0x0</span>, x20, (arg1[<span class="tok-number">1</span>]));</span> <span class="line" id="L988"> <span class="tok-kw">var</span> x30: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L989"> <span class="tok-kw">var</span> x31: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L990"> addcarryxU64(&x30, &x31, x29, x22, <span class="tok-number">0x0</span>);</span> <span class="line" id="L991"> <span class="tok-kw">var</span> x32: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L992"> <span class="tok-kw">var</span> x33: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L993"> addcarryxU64(&x32, &x33, x31, x24, <span class="tok-number">0x0</span>);</span> <span class="line" id="L994"> <span class="tok-kw">var</span> x34: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L995"> <span class="tok-kw">var</span> x35: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L996"> addcarryxU64(&x34, &x35, x33, x26, <span class="tok-number">0x0</span>);</span> <span class="line" id="L997"> <span class="tok-kw">var</span> x36: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L998"> <span class="tok-kw">var</span> x37: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L999"> mulxU64(&x36, &x37, x28, <span class="tok-number">0xd838091dd2253531</span>);</span> <span class="line" id="L1000"> <span class="tok-kw">var</span> x38: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1001"> <span class="tok-kw">var</span> x39: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1002"> mulxU64(&x38, &x39, x36, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1003"> <span class="tok-kw">var</span> x40: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1004"> <span class="tok-kw">var</span> x41: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1005"> mulxU64(&x40, &x41, x36, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1006"> <span class="tok-kw">var</span> x42: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1007"> <span class="tok-kw">var</span> x43: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1008"> mulxU64(&x42, &x43, x36, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1009"> <span class="tok-kw">var</span> x44: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1010"> <span class="tok-kw">var</span> x45: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1011"> mulxU64(&x44, &x45, x36, <span class="tok-number">0xfffffffefffffc2f</span>);</span> <span class="line" id="L1012"> <span class="tok-kw">var</span> x46: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1013"> <span class="tok-kw">var</span> x47: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1014"> addcarryxU64(&x46, &x47, <span class="tok-number">0x0</span>, x45, x42);</span> <span class="line" id="L1015"> <span class="tok-kw">var</span> x48: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1016"> <span class="tok-kw">var</span> x49: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1017"> addcarryxU64(&x48, &x49, x47, x43, x40);</span> <span class="line" id="L1018"> <span class="tok-kw">var</span> x50: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1019"> <span class="tok-kw">var</span> x51: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1020"> addcarryxU64(&x50, &x51, x49, x41, x38);</span> <span class="line" id="L1021"> <span class="tok-kw">var</span> x52: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1022"> <span class="tok-kw">var</span> x53: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1023"> addcarryxU64(&x52, &x53, <span class="tok-number">0x0</span>, x28, x44);</span> <span class="line" id="L1024"> <span class="tok-kw">var</span> x54: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1025"> <span class="tok-kw">var</span> x55: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1026"> addcarryxU64(&x54, &x55, x53, x30, x46);</span> <span class="line" id="L1027"> <span class="tok-kw">var</span> x56: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1028"> <span class="tok-kw">var</span> x57: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1029"> addcarryxU64(&x56, &x57, x55, x32, x48);</span> <span class="line" id="L1030"> <span class="tok-kw">var</span> x58: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1031"> <span class="tok-kw">var</span> x59: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1032"> addcarryxU64(&x58, &x59, x57, x34, x50);</span> <span class="line" id="L1033"> <span class="tok-kw">var</span> x60: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1034"> <span class="tok-kw">var</span> x61: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1035"> addcarryxU64(&x60, &x61, x59, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x35) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x27)), (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x51) + x39));</span> <span class="line" id="L1036"> <span class="tok-kw">var</span> x62: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1037"> <span class="tok-kw">var</span> x63: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1038"> addcarryxU64(&x62, &x63, <span class="tok-number">0x0</span>, x54, (arg1[<span class="tok-number">2</span>]));</span> <span class="line" id="L1039"> <span class="tok-kw">var</span> x64: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1040"> <span class="tok-kw">var</span> x65: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1041"> addcarryxU64(&x64, &x65, x63, x56, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1042"> <span class="tok-kw">var</span> x66: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1043"> <span class="tok-kw">var</span> x67: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1044"> addcarryxU64(&x66, &x67, x65, x58, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1045"> <span class="tok-kw">var</span> x68: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1046"> <span class="tok-kw">var</span> x69: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1047"> addcarryxU64(&x68, &x69, x67, x60, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1048"> <span class="tok-kw">var</span> x70: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1049"> <span class="tok-kw">var</span> x71: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1050"> mulxU64(&x70, &x71, x62, <span class="tok-number">0xd838091dd2253531</span>);</span> <span class="line" id="L1051"> <span class="tok-kw">var</span> x72: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1052"> <span class="tok-kw">var</span> x73: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1053"> mulxU64(&x72, &x73, x70, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1054"> <span class="tok-kw">var</span> x74: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1055"> <span class="tok-kw">var</span> x75: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1056"> mulxU64(&x74, &x75, x70, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1057"> <span class="tok-kw">var</span> x76: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1058"> <span class="tok-kw">var</span> x77: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1059"> mulxU64(&x76, &x77, x70, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1060"> <span class="tok-kw">var</span> x78: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1061"> <span class="tok-kw">var</span> x79: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1062"> mulxU64(&x78, &x79, x70, <span class="tok-number">0xfffffffefffffc2f</span>);</span> <span class="line" id="L1063"> <span class="tok-kw">var</span> x80: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1064"> <span class="tok-kw">var</span> x81: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1065"> addcarryxU64(&x80, &x81, <span class="tok-number">0x0</span>, x79, x76);</span> <span class="line" id="L1066"> <span class="tok-kw">var</span> x82: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1067"> <span class="tok-kw">var</span> x83: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1068"> addcarryxU64(&x82, &x83, x81, x77, x74);</span> <span class="line" id="L1069"> <span class="tok-kw">var</span> x84: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1070"> <span class="tok-kw">var</span> x85: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1071"> addcarryxU64(&x84, &x85, x83, x75, x72);</span> <span class="line" id="L1072"> <span class="tok-kw">var</span> x86: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1073"> <span class="tok-kw">var</span> x87: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1074"> addcarryxU64(&x86, &x87, <span class="tok-number">0x0</span>, x62, x78);</span> <span class="line" id="L1075"> <span class="tok-kw">var</span> x88: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1076"> <span class="tok-kw">var</span> x89: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1077"> addcarryxU64(&x88, &x89, x87, x64, x80);</span> <span class="line" id="L1078"> <span class="tok-kw">var</span> x90: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1079"> <span class="tok-kw">var</span> x91: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1080"> addcarryxU64(&x90, &x91, x89, x66, x82);</span> <span class="line" id="L1081"> <span class="tok-kw">var</span> x92: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1082"> <span class="tok-kw">var</span> x93: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1083"> addcarryxU64(&x92, &x93, x91, x68, x84);</span> <span class="line" id="L1084"> <span class="tok-kw">var</span> x94: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1085"> <span class="tok-kw">var</span> x95: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1086"> addcarryxU64(&x94, &x95, x93, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x69) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x61)), (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x85) + x73));</span> <span class="line" id="L1087"> <span class="tok-kw">var</span> x96: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1088"> <span class="tok-kw">var</span> x97: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1089"> addcarryxU64(&x96, &x97, <span class="tok-number">0x0</span>, x88, (arg1[<span class="tok-number">3</span>]));</span> <span class="line" id="L1090"> <span class="tok-kw">var</span> x98: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1091"> <span class="tok-kw">var</span> x99: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1092"> addcarryxU64(&x98, &x99, x97, x90, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1093"> <span class="tok-kw">var</span> x100: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1094"> <span class="tok-kw">var</span> x101: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1095"> addcarryxU64(&x100, &x101, x99, x92, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1096"> <span class="tok-kw">var</span> x102: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1097"> <span class="tok-kw">var</span> x103: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1098"> addcarryxU64(&x102, &x103, x101, x94, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1099"> <span class="tok-kw">var</span> x104: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1100"> <span class="tok-kw">var</span> x105: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1101"> mulxU64(&x104, &x105, x96, <span class="tok-number">0xd838091dd2253531</span>);</span> <span class="line" id="L1102"> <span class="tok-kw">var</span> x106: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1103"> <span class="tok-kw">var</span> x107: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1104"> mulxU64(&x106, &x107, x104, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1105"> <span class="tok-kw">var</span> x108: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1106"> <span class="tok-kw">var</span> x109: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1107"> mulxU64(&x108, &x109, x104, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1108"> <span class="tok-kw">var</span> x110: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1109"> <span class="tok-kw">var</span> x111: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1110"> mulxU64(&x110, &x111, x104, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1111"> <span class="tok-kw">var</span> x112: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1112"> <span class="tok-kw">var</span> x113: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1113"> mulxU64(&x112, &x113, x104, <span class="tok-number">0xfffffffefffffc2f</span>);</span> <span class="line" id="L1114"> <span class="tok-kw">var</span> x114: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1115"> <span class="tok-kw">var</span> x115: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1116"> addcarryxU64(&x114, &x115, <span class="tok-number">0x0</span>, x113, x110);</span> <span class="line" id="L1117"> <span class="tok-kw">var</span> x116: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1118"> <span class="tok-kw">var</span> x117: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1119"> addcarryxU64(&x116, &x117, x115, x111, x108);</span> <span class="line" id="L1120"> <span class="tok-kw">var</span> x118: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1121"> <span class="tok-kw">var</span> x119: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1122"> addcarryxU64(&x118, &x119, x117, x109, x106);</span> <span class="line" id="L1123"> <span class="tok-kw">var</span> x120: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1124"> <span class="tok-kw">var</span> x121: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1125"> addcarryxU64(&x120, &x121, <span class="tok-number">0x0</span>, x96, x112);</span> <span class="line" id="L1126"> <span class="tok-kw">var</span> x122: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1127"> <span class="tok-kw">var</span> x123: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1128"> addcarryxU64(&x122, &x123, x121, x98, x114);</span> <span class="line" id="L1129"> <span class="tok-kw">var</span> x124: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1130"> <span class="tok-kw">var</span> x125: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1131"> addcarryxU64(&x124, &x125, x123, x100, x116);</span> <span class="line" id="L1132"> <span class="tok-kw">var</span> x126: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1133"> <span class="tok-kw">var</span> x127: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1134"> addcarryxU64(&x126, &x127, x125, x102, x118);</span> <span class="line" id="L1135"> <span class="tok-kw">var</span> x128: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1136"> <span class="tok-kw">var</span> x129: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1137"> addcarryxU64(&x128, &x129, x127, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x103) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x95)), (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x119) + x107));</span> <span class="line" id="L1138"> <span class="tok-kw">var</span> x130: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1139"> <span class="tok-kw">var</span> x131: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1140"> subborrowxU64(&x130, &x131, <span class="tok-number">0x0</span>, x122, <span class="tok-number">0xfffffffefffffc2f</span>);</span> <span class="line" id="L1141"> <span class="tok-kw">var</span> x132: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1142"> <span class="tok-kw">var</span> x133: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1143"> subborrowxU64(&x132, &x133, x131, x124, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1144"> <span class="tok-kw">var</span> x134: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1145"> <span class="tok-kw">var</span> x135: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1146"> subborrowxU64(&x134, &x135, x133, x126, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1147"> <span class="tok-kw">var</span> x136: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1148"> <span class="tok-kw">var</span> x137: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1149"> subborrowxU64(&x136, &x137, x135, x128, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1150"> <span class="tok-kw">var</span> x138: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1151"> <span class="tok-kw">var</span> x139: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1152"> subborrowxU64(&x138, &x139, x137, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x129), <span class="tok-number">0x0</span>);</span> <span class="line" id="L1153"> <span class="tok-kw">var</span> x140: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1154"> cmovznzU64(&x140, x139, x130, x122);</span> <span class="line" id="L1155"> <span class="tok-kw">var</span> x141: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1156"> cmovznzU64(&x141, x139, x132, x124);</span> <span class="line" id="L1157"> <span class="tok-kw">var</span> x142: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1158"> cmovznzU64(&x142, x139, x134, x126);</span> <span class="line" id="L1159"> <span class="tok-kw">var</span> x143: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1160"> cmovznzU64(&x143, x139, x136, x128);</span> <span class="line" id="L1161"> out1[<span class="tok-number">0</span>] = x140;</span> <span class="line" id="L1162"> out1[<span class="tok-number">1</span>] = x141;</span> <span class="line" id="L1163"> out1[<span class="tok-number">2</span>] = x142;</span> <span class="line" id="L1164"> out1[<span class="tok-number">3</span>] = x143;</span> <span class="line" id="L1165">}</span> <span class="line" id="L1166"></span> <span class="line" id="L1167"><span class="tok-comment">/// The function toMontgomery translates a field element into the Montgomery domain.</span></span> <span class="line" id="L1168"><span class="tok-comment">///</span></span> <span class="line" id="L1169"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L1170"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L1171"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L1172"><span class="tok-comment">/// eval (from_montgomery out1) mod m = eval arg1 mod m</span></span> <span class="line" id="L1173"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L1174"><span class="tok-comment">///</span></span> <span class="line" id="L1175"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toMontgomery</span>(out1: MontgomeryDomainFieldElement, arg1: NonMontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L1176"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L1177"></span> <span class="line" id="L1178"> <span class="tok-kw">const</span> x1 = (arg1[<span class="tok-number">1</span>]);</span> <span class="line" id="L1179"> <span class="tok-kw">const</span> x2 = (arg1[<span class="tok-number">2</span>]);</span> <span class="line" id="L1180"> <span class="tok-kw">const</span> x3 = (arg1[<span class="tok-number">3</span>]);</span> <span class="line" id="L1181"> <span class="tok-kw">const</span> x4 = (arg1[<span class="tok-number">0</span>]);</span> <span class="line" id="L1182"> <span class="tok-kw">var</span> x5: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1183"> <span class="tok-kw">var</span> x6: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1184"> mulxU64(&x5, &x6, x4, <span class="tok-number">0x7a2000e90a1</span>);</span> <span class="line" id="L1185"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1186"> <span class="tok-kw">var</span> x8: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1187"> addcarryxU64(&x7, &x8, <span class="tok-number">0x0</span>, x6, x4);</span> <span class="line" id="L1188"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1189"> <span class="tok-kw">var</span> x10: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1190"> mulxU64(&x9, &x10, x5, <span class="tok-number">0xd838091dd2253531</span>);</span> <span class="line" id="L1191"> <span class="tok-kw">var</span> x11: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1192"> <span class="tok-kw">var</span> x12: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1193"> mulxU64(&x11, &x12, x9, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1194"> <span class="tok-kw">var</span> x13: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1195"> <span class="tok-kw">var</span> x14: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1196"> mulxU64(&x13, &x14, x9, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1197"> <span class="tok-kw">var</span> x15: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1198"> <span class="tok-kw">var</span> x16: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1199"> mulxU64(&x15, &x16, x9, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1200"> <span class="tok-kw">var</span> x17: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1201"> <span class="tok-kw">var</span> x18: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1202"> mulxU64(&x17, &x18, x9, <span class="tok-number">0xfffffffefffffc2f</span>);</span> <span class="line" id="L1203"> <span class="tok-kw">var</span> x19: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1204"> <span class="tok-kw">var</span> x20: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1205"> addcarryxU64(&x19, &x20, <span class="tok-number">0x0</span>, x18, x15);</span> <span class="line" id="L1206"> <span class="tok-kw">var</span> x21: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1207"> <span class="tok-kw">var</span> x22: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1208"> addcarryxU64(&x21, &x22, x20, x16, x13);</span> <span class="line" id="L1209"> <span class="tok-kw">var</span> x23: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1210"> <span class="tok-kw">var</span> x24: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1211"> addcarryxU64(&x23, &x24, x22, x14, x11);</span> <span class="line" id="L1212"> <span class="tok-kw">var</span> x25: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1213"> <span class="tok-kw">var</span> x26: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1214"> addcarryxU64(&x25, &x26, <span class="tok-number">0x0</span>, x5, x17);</span> <span class="line" id="L1215"> <span class="tok-kw">var</span> x27: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1216"> <span class="tok-kw">var</span> x28: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1217"> addcarryxU64(&x27, &x28, x26, x7, x19);</span> <span class="line" id="L1218"> <span class="tok-kw">var</span> x29: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1219"> <span class="tok-kw">var</span> x30: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1220"> addcarryxU64(&x29, &x30, x28, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x8), x21);</span> <span class="line" id="L1221"> <span class="tok-kw">var</span> x31: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1222"> <span class="tok-kw">var</span> x32: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1223"> addcarryxU64(&x31, &x32, x30, <span class="tok-number">0x0</span>, x23);</span> <span class="line" id="L1224"> <span class="tok-kw">var</span> x33: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1225"> <span class="tok-kw">var</span> x34: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1226"> addcarryxU64(&x33, &x34, x32, <span class="tok-number">0x0</span>, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x24) + x12));</span> <span class="line" id="L1227"> <span class="tok-kw">var</span> x35: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1228"> <span class="tok-kw">var</span> x36: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1229"> mulxU64(&x35, &x36, x1, <span class="tok-number">0x7a2000e90a1</span>);</span> <span class="line" id="L1230"> <span class="tok-kw">var</span> x37: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1231"> <span class="tok-kw">var</span> x38: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1232"> addcarryxU64(&x37, &x38, <span class="tok-number">0x0</span>, x36, x1);</span> <span class="line" id="L1233"> <span class="tok-kw">var</span> x39: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1234"> <span class="tok-kw">var</span> x40: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1235"> addcarryxU64(&x39, &x40, <span class="tok-number">0x0</span>, x27, x35);</span> <span class="line" id="L1236"> <span class="tok-kw">var</span> x41: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1237"> <span class="tok-kw">var</span> x42: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1238"> addcarryxU64(&x41, &x42, x40, x29, x37);</span> <span class="line" id="L1239"> <span class="tok-kw">var</span> x43: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1240"> <span class="tok-kw">var</span> x44: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1241"> addcarryxU64(&x43, &x44, x42, x31, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x38));</span> <span class="line" id="L1242"> <span class="tok-kw">var</span> x45: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1243"> <span class="tok-kw">var</span> x46: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1244"> addcarryxU64(&x45, &x46, x44, x33, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1245"> <span class="tok-kw">var</span> x47: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1246"> <span class="tok-kw">var</span> x48: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1247"> mulxU64(&x47, &x48, x39, <span class="tok-number">0xd838091dd2253531</span>);</span> <span class="line" id="L1248"> <span class="tok-kw">var</span> x49: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1249"> <span class="tok-kw">var</span> x50: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1250"> mulxU64(&x49, &x50, x47, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1251"> <span class="tok-kw">var</span> x51: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1252"> <span class="tok-kw">var</span> x52: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1253"> mulxU64(&x51, &x52, x47, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1254"> <span class="tok-kw">var</span> x53: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1255"> <span class="tok-kw">var</span> x54: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1256"> mulxU64(&x53, &x54, x47, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1257"> <span class="tok-kw">var</span> x55: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1258"> <span class="tok-kw">var</span> x56: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1259"> mulxU64(&x55, &x56, x47, <span class="tok-number">0xfffffffefffffc2f</span>);</span> <span class="line" id="L1260"> <span class="tok-kw">var</span> x57: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1261"> <span class="tok-kw">var</span> x58: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1262"> addcarryxU64(&x57, &x58, <span class="tok-number">0x0</span>, x56, x53);</span> <span class="line" id="L1263"> <span class="tok-kw">var</span> x59: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1264"> <span class="tok-kw">var</span> x60: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1265"> addcarryxU64(&x59, &x60, x58, x54, x51);</span> <span class="line" id="L1266"> <span class="tok-kw">var</span> x61: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1267"> <span class="tok-kw">var</span> x62: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1268"> addcarryxU64(&x61, &x62, x60, x52, x49);</span> <span class="line" id="L1269"> <span class="tok-kw">var</span> x63: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1270"> <span class="tok-kw">var</span> x64: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1271"> addcarryxU64(&x63, &x64, <span class="tok-number">0x0</span>, x39, x55);</span> <span class="line" id="L1272"> <span class="tok-kw">var</span> x65: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1273"> <span class="tok-kw">var</span> x66: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1274"> addcarryxU64(&x65, &x66, x64, x41, x57);</span> <span class="line" id="L1275"> <span class="tok-kw">var</span> x67: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1276"> <span class="tok-kw">var</span> x68: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1277"> addcarryxU64(&x67, &x68, x66, x43, x59);</span> <span class="line" id="L1278"> <span class="tok-kw">var</span> x69: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1279"> <span class="tok-kw">var</span> x70: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1280"> addcarryxU64(&x69, &x70, x68, x45, x61);</span> <span class="line" id="L1281"> <span class="tok-kw">var</span> x71: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1282"> <span class="tok-kw">var</span> x72: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1283"> addcarryxU64(&x71, &x72, x70, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x46) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x34)), (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x62) + x50));</span> <span class="line" id="L1284"> <span class="tok-kw">var</span> x73: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1285"> <span class="tok-kw">var</span> x74: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1286"> mulxU64(&x73, &x74, x2, <span class="tok-number">0x7a2000e90a1</span>);</span> <span class="line" id="L1287"> <span class="tok-kw">var</span> x75: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1288"> <span class="tok-kw">var</span> x76: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1289"> addcarryxU64(&x75, &x76, <span class="tok-number">0x0</span>, x74, x2);</span> <span class="line" id="L1290"> <span class="tok-kw">var</span> x77: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1291"> <span class="tok-kw">var</span> x78: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1292"> addcarryxU64(&x77, &x78, <span class="tok-number">0x0</span>, x65, x73);</span> <span class="line" id="L1293"> <span class="tok-kw">var</span> x79: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1294"> <span class="tok-kw">var</span> x80: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1295"> addcarryxU64(&x79, &x80, x78, x67, x75);</span> <span class="line" id="L1296"> <span class="tok-kw">var</span> x81: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1297"> <span class="tok-kw">var</span> x82: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1298"> addcarryxU64(&x81, &x82, x80, x69, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x76));</span> <span class="line" id="L1299"> <span class="tok-kw">var</span> x83: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1300"> <span class="tok-kw">var</span> x84: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1301"> addcarryxU64(&x83, &x84, x82, x71, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1302"> <span class="tok-kw">var</span> x85: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1303"> <span class="tok-kw">var</span> x86: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1304"> mulxU64(&x85, &x86, x77, <span class="tok-number">0xd838091dd2253531</span>);</span> <span class="line" id="L1305"> <span class="tok-kw">var</span> x87: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1306"> <span class="tok-kw">var</span> x88: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1307"> mulxU64(&x87, &x88, x85, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1308"> <span class="tok-kw">var</span> x89: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1309"> <span class="tok-kw">var</span> x90: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1310"> mulxU64(&x89, &x90, x85, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1311"> <span class="tok-kw">var</span> x91: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1312"> <span class="tok-kw">var</span> x92: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1313"> mulxU64(&x91, &x92, x85, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1314"> <span class="tok-kw">var</span> x93: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1315"> <span class="tok-kw">var</span> x94: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1316"> mulxU64(&x93, &x94, x85, <span class="tok-number">0xfffffffefffffc2f</span>);</span> <span class="line" id="L1317"> <span class="tok-kw">var</span> x95: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1318"> <span class="tok-kw">var</span> x96: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1319"> addcarryxU64(&x95, &x96, <span class="tok-number">0x0</span>, x94, x91);</span> <span class="line" id="L1320"> <span class="tok-kw">var</span> x97: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1321"> <span class="tok-kw">var</span> x98: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1322"> addcarryxU64(&x97, &x98, x96, x92, x89);</span> <span class="line" id="L1323"> <span class="tok-kw">var</span> x99: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1324"> <span class="tok-kw">var</span> x100: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1325"> addcarryxU64(&x99, &x100, x98, x90, x87);</span> <span class="line" id="L1326"> <span class="tok-kw">var</span> x101: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1327"> <span class="tok-kw">var</span> x102: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1328"> addcarryxU64(&x101, &x102, <span class="tok-number">0x0</span>, x77, x93);</span> <span class="line" id="L1329"> <span class="tok-kw">var</span> x103: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1330"> <span class="tok-kw">var</span> x104: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1331"> addcarryxU64(&x103, &x104, x102, x79, x95);</span> <span class="line" id="L1332"> <span class="tok-kw">var</span> x105: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1333"> <span class="tok-kw">var</span> x106: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1334"> addcarryxU64(&x105, &x106, x104, x81, x97);</span> <span class="line" id="L1335"> <span class="tok-kw">var</span> x107: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1336"> <span class="tok-kw">var</span> x108: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1337"> addcarryxU64(&x107, &x108, x106, x83, x99);</span> <span class="line" id="L1338"> <span class="tok-kw">var</span> x109: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1339"> <span class="tok-kw">var</span> x110: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1340"> addcarryxU64(&x109, &x110, x108, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x84) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x72)), (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x100) + x88));</span> <span class="line" id="L1341"> <span class="tok-kw">var</span> x111: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1342"> <span class="tok-kw">var</span> x112: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1343"> mulxU64(&x111, &x112, x3, <span class="tok-number">0x7a2000e90a1</span>);</span> <span class="line" id="L1344"> <span class="tok-kw">var</span> x113: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1345"> <span class="tok-kw">var</span> x114: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1346"> addcarryxU64(&x113, &x114, <span class="tok-number">0x0</span>, x112, x3);</span> <span class="line" id="L1347"> <span class="tok-kw">var</span> x115: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1348"> <span class="tok-kw">var</span> x116: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1349"> addcarryxU64(&x115, &x116, <span class="tok-number">0x0</span>, x103, x111);</span> <span class="line" id="L1350"> <span class="tok-kw">var</span> x117: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1351"> <span class="tok-kw">var</span> x118: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1352"> addcarryxU64(&x117, &x118, x116, x105, x113);</span> <span class="line" id="L1353"> <span class="tok-kw">var</span> x119: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1354"> <span class="tok-kw">var</span> x120: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1355"> addcarryxU64(&x119, &x120, x118, x107, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x114));</span> <span class="line" id="L1356"> <span class="tok-kw">var</span> x121: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1357"> <span class="tok-kw">var</span> x122: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1358"> addcarryxU64(&x121, &x122, x120, x109, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1359"> <span class="tok-kw">var</span> x123: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1360"> <span class="tok-kw">var</span> x124: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1361"> mulxU64(&x123, &x124, x115, <span class="tok-number">0xd838091dd2253531</span>);</span> <span class="line" id="L1362"> <span class="tok-kw">var</span> x125: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1363"> <span class="tok-kw">var</span> x126: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1364"> mulxU64(&x125, &x126, x123, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1365"> <span class="tok-kw">var</span> x127: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1366"> <span class="tok-kw">var</span> x128: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1367"> mulxU64(&x127, &x128, x123, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1368"> <span class="tok-kw">var</span> x129: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1369"> <span class="tok-kw">var</span> x130: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1370"> mulxU64(&x129, &x130, x123, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1371"> <span class="tok-kw">var</span> x131: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1372"> <span class="tok-kw">var</span> x132: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1373"> mulxU64(&x131, &x132, x123, <span class="tok-number">0xfffffffefffffc2f</span>);</span> <span class="line" id="L1374"> <span class="tok-kw">var</span> x133: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1375"> <span class="tok-kw">var</span> x134: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1376"> addcarryxU64(&x133, &x134, <span class="tok-number">0x0</span>, x132, x129);</span> <span class="line" id="L1377"> <span class="tok-kw">var</span> x135: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1378"> <span class="tok-kw">var</span> x136: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1379"> addcarryxU64(&x135, &x136, x134, x130, x127);</span> <span class="line" id="L1380"> <span class="tok-kw">var</span> x137: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1381"> <span class="tok-kw">var</span> x138: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1382"> addcarryxU64(&x137, &x138, x136, x128, x125);</span> <span class="line" id="L1383"> <span class="tok-kw">var</span> x139: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1384"> <span class="tok-kw">var</span> x140: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1385"> addcarryxU64(&x139, &x140, <span class="tok-number">0x0</span>, x115, x131);</span> <span class="line" id="L1386"> <span class="tok-kw">var</span> x141: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1387"> <span class="tok-kw">var</span> x142: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1388"> addcarryxU64(&x141, &x142, x140, x117, x133);</span> <span class="line" id="L1389"> <span class="tok-kw">var</span> x143: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1390"> <span class="tok-kw">var</span> x144: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1391"> addcarryxU64(&x143, &x144, x142, x119, x135);</span> <span class="line" id="L1392"> <span class="tok-kw">var</span> x145: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1393"> <span class="tok-kw">var</span> x146: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1394"> addcarryxU64(&x145, &x146, x144, x121, x137);</span> <span class="line" id="L1395"> <span class="tok-kw">var</span> x147: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1396"> <span class="tok-kw">var</span> x148: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1397"> addcarryxU64(&x147, &x148, x146, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x122) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x110)), (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x138) + x126));</span> <span class="line" id="L1398"> <span class="tok-kw">var</span> x149: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1399"> <span class="tok-kw">var</span> x150: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1400"> subborrowxU64(&x149, &x150, <span class="tok-number">0x0</span>, x141, <span class="tok-number">0xfffffffefffffc2f</span>);</span> <span class="line" id="L1401"> <span class="tok-kw">var</span> x151: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1402"> <span class="tok-kw">var</span> x152: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1403"> subborrowxU64(&x151, &x152, x150, x143, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1404"> <span class="tok-kw">var</span> x153: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1405"> <span class="tok-kw">var</span> x154: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1406"> subborrowxU64(&x153, &x154, x152, x145, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1407"> <span class="tok-kw">var</span> x155: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1408"> <span class="tok-kw">var</span> x156: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1409"> subborrowxU64(&x155, &x156, x154, x147, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1410"> <span class="tok-kw">var</span> x157: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1411"> <span class="tok-kw">var</span> x158: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1412"> subborrowxU64(&x157, &x158, x156, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x148), <span class="tok-number">0x0</span>);</span> <span class="line" id="L1413"> <span class="tok-kw">var</span> x159: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1414"> cmovznzU64(&x159, x158, x149, x141);</span> <span class="line" id="L1415"> <span class="tok-kw">var</span> x160: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1416"> cmovznzU64(&x160, x158, x151, x143);</span> <span class="line" id="L1417"> <span class="tok-kw">var</span> x161: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1418"> cmovznzU64(&x161, x158, x153, x145);</span> <span class="line" id="L1419"> <span class="tok-kw">var</span> x162: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1420"> cmovznzU64(&x162, x158, x155, x147);</span> <span class="line" id="L1421"> out1[<span class="tok-number">0</span>] = x159;</span> <span class="line" id="L1422"> out1[<span class="tok-number">1</span>] = x160;</span> <span class="line" id="L1423"> out1[<span class="tok-number">2</span>] = x161;</span> <span class="line" id="L1424"> out1[<span class="tok-number">3</span>] = x162;</span> <span class="line" id="L1425">}</span> <span class="line" id="L1426"></span> <span class="line" id="L1427"><span class="tok-comment">/// The function nonzero outputs a single non-zero word if the input is non-zero and zero otherwise.</span></span> <span class="line" id="L1428"><span class="tok-comment">///</span></span> <span class="line" id="L1429"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L1430"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L1431"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L1432"><span class="tok-comment">/// out1 = 0 ↔ eval (from_montgomery arg1) mod m = 0</span></span> <span class="line" id="L1433"><span class="tok-comment">///</span></span> <span class="line" id="L1434"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L1435"><span class="tok-comment">/// arg1: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1436"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L1437"><span class="tok-comment">/// out1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L1438"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">nonzero</span>(out1: <span class="tok-type">u64</span>, arg1: [<span class="tok-number">4</span>]<span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L1439"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L1440"></span> <span class="line" id="L1441"> <span class="tok-kw">const</span> x1 = ((arg1[<span class="tok-number">0</span>]) \| ((arg1[<span class="tok-number">1</span>]) \| ((arg1[<span class="tok-number">2</span>]) \| (arg1[<span class="tok-number">3</span>]))));</span> <span class="line" id="L1442"> out1. = x1;</span> <span class="line" id="L1443">}</span> <span class="line" id="L1444"></span> <span class="line" id="L1445"><span class="tok-comment">/// The function selectznz is a multi-limb conditional select.</span></span> <span class="line" id="L1446"><span class="tok-comment">///</span></span> <span class="line" id="L1447"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L1448"><span class="tok-comment">/// out1 = (if arg1 = 0 then arg2 else arg3)</span></span> <span class="line" id="L1449"><span class="tok-comment">///</span></span> <span class="line" id="L1450"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L1451"><span class="tok-comment">/// arg1: [0x0 ~> 0x1]</span></span> <span class="line" id="L1452"><span class="tok-comment">/// arg2: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1453"><span class="tok-comment">/// arg3: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1454"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L1455"><span class="tok-comment">/// out1: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1456"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">selectznz</span>(out1: [<span class="tok-number">4</span>]<span class="tok-type">u64</span>, arg1: <span class="tok-type">u1</span>, arg2: [<span class="tok-number">4</span>]<span class="tok-type">u64</span>, arg3: [<span class="tok-number">4</span>]<span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L1457"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L1458"></span> <span class="line" id="L1459"> <span class="tok-kw">var</span> x1: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1460"> cmovznzU64(&x1, arg1, (arg2[<span class="tok-number">0</span>]), (arg3[<span class="tok-number">0</span>]));</span> <span class="line" id="L1461"> <span class="tok-kw">var</span> x2: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1462"> cmovznzU64(&x2, arg1, (arg2[<span class="tok-number">1</span>]), (arg3[<span class="tok-number">1</span>]));</span> <span class="line" id="L1463"> <span class="tok-kw">var</span> x3: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1464"> cmovznzU64(&x3, arg1, (arg2[<span class="tok-number">2</span>]), (arg3[<span class="tok-number">2</span>]));</span> <span class="line" id="L1465"> <span class="tok-kw">var</span> x4: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1466"> cmovznzU64(&x4, arg1, (arg2[<span class="tok-number">3</span>]), (arg3[<span class="tok-number">3</span>]));</span> <span class="line" id="L1467"> out1[<span class="tok-number">0</span>] = x1;</span> <span class="line" id="L1468"> out1[<span class="tok-number">1</span>] = x2;</span> <span class="line" id="L1469"> out1[<span class="tok-number">2</span>] = x3;</span> <span class="line" id="L1470"> out1[<span class="tok-number">3</span>] = x4;</span> <span class="line" id="L1471">}</span> <span class="line" id="L1472"></span> <span class="line" id="L1473"><span class="tok-comment">/// The function toBytes serializes a field element NOT in the Montgomery domain to bytes in little-endian order.</span></span> <span class="line" id="L1474"><span class="tok-comment">///</span></span> <span class="line" id="L1475"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L1476"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L1477"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L1478"><span class="tok-comment">/// out1 = map (λ x, ⌊((eval arg1 mod m) mod 2^(8 (x + 1))) / 2^(8 * x)⌋) [0..31]</span></span> <span class="line" id="L1479"><span class="tok-comment">///</span></span> <span class="line" id="L1480"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L1481"><span class="tok-comment">/// arg1: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1482"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L1483"><span class="tok-comment">/// out1: [[0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff]]</span></span> <span class="line" id="L1484"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toBytes</span>(out1: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>, arg1: [<span class="tok-number">4</span>]<span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L1485"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L1486"></span> <span class="line" id="L1487"> <span class="tok-kw">const</span> x1 = (arg1[<span class="tok-number">3</span>]);</span> <span class="line" id="L1488"> <span class="tok-kw">const</span> x2 = (arg1[<span class="tok-number">2</span>]);</span> <span class="line" id="L1489"> <span class="tok-kw">const</span> x3 = (arg1[<span class="tok-number">1</span>]);</span> <span class="line" id="L1490"> <span class="tok-kw">const</span> x4 = (arg1[<span class="tok-number">0</span>]);</span> <span class="line" id="L1491"> <span class="tok-kw">const</span> x5 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x4 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1492"> <span class="tok-kw">const</span> x6 = (x4 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1493"> <span class="tok-kw">const</span> x7 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x6 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1494"> <span class="tok-kw">const</span> x8 = (x6 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1495"> <span class="tok-kw">const</span> x9 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x8 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1496"> <span class="tok-kw">const</span> x10 = (x8 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1497"> <span class="tok-kw">const</span> x11 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x10 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1498"> <span class="tok-kw">const</span> x12 = (x10 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1499"> <span class="tok-kw">const</span> x13 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x12 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1500"> <span class="tok-kw">const</span> x14 = (x12 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1501"> <span class="tok-kw">const</span> x15 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x14 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1502"> <span class="tok-kw">const</span> x16 = (x14 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1503"> <span class="tok-kw">const</span> x17 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x16 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1504"> <span class="tok-kw">const</span> x18 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x16 >> <span class="tok-number">8</span>)));</span> <span class="line" id="L1505"> <span class="tok-kw">const</span> x19 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x3 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1506"> <span class="tok-kw">const</span> x20 = (x3 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1507"> <span class="tok-kw">const</span> x21 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x20 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1508"> <span class="tok-kw">const</span> x22 = (x20 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1509"> <span class="tok-kw">const</span> x23 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x22 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1510"> <span class="tok-kw">const</span> x24 = (x22 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1511"> <span class="tok-kw">const</span> x25 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x24 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1512"> <span class="tok-kw">const</span> x26 = (x24 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1513"> <span class="tok-kw">const</span> x27 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x26 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1514"> <span class="tok-kw">const</span> x28 = (x26 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1515"> <span class="tok-kw">const</span> x29 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x28 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1516"> <span class="tok-kw">const</span> x30 = (x28 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1517"> <span class="tok-kw">const</span> x31 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x30 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1518"> <span class="tok-kw">const</span> x32 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x30 >> <span class="tok-number">8</span>)));</span> <span class="line" id="L1519"> <span class="tok-kw">const</span> x33 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x2 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1520"> <span class="tok-kw">const</span> x34 = (x2 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1521"> <span class="tok-kw">const</span> x35 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x34 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1522"> <span class="tok-kw">const</span> x36 = (x34 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1523"> <span class="tok-kw">const</span> x37 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x36 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1524"> <span class="tok-kw">const</span> x38 = (x36 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1525"> <span class="tok-kw">const</span> x39 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x38 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1526"> <span class="tok-kw">const</span> x40 = (x38 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1527"> <span class="tok-kw">const</span> x41 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x40 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1528"> <span class="tok-kw">const</span> x42 = (x40 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1529"> <span class="tok-kw">const</span> x43 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x42 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1530"> <span class="tok-kw">const</span> x44 = (x42 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1531"> <span class="tok-kw">const</span> x45 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x44 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1532"> <span class="tok-kw">const</span> x46 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x44 >> <span class="tok-number">8</span>)));</span> <span class="line" id="L1533"> <span class="tok-kw">const</span> x47 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x1 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1534"> <span class="tok-kw">const</span> x48 = (x1 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1535"> <span class="tok-kw">const</span> x49 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x48 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1536"> <span class="tok-kw">const</span> x50 = (x48 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1537"> <span class="tok-kw">const</span> x51 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x50 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1538"> <span class="tok-kw">const</span> x52 = (x50 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1539"> <span class="tok-kw">const</span> x53 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x52 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1540"> <span class="tok-kw">const</span> x54 = (x52 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1541"> <span class="tok-kw">const</span> x55 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x54 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1542"> <span class="tok-kw">const</span> x56 = (x54 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1543"> <span class="tok-kw">const</span> x57 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x56 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1544"> <span class="tok-kw">const</span> x58 = (x56 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1545"> <span class="tok-kw">const</span> x59 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x58 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1546"> <span class="tok-kw">const</span> x60 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x58 >> <span class="tok-number">8</span>)));</span> <span class="line" id="L1547"> out1[<span class="tok-number">0</span>] = x5;</span> <span class="line" id="L1548"> out1[<span class="tok-number">1</span>] = x7;</span> <span class="line" id="L1549"> out1[<span class="tok-number">2</span>] = x9;</span> <span class="line" id="L1550"> out1[<span class="tok-number">3</span>] = x11;</span> <span class="line" id="L1551"> out1[<span class="tok-number">4</span>] = x13;</span> <span class="line" id="L1552"> out1[<span class="tok-number">5</span>] = x15;</span> <span class="line" id="L1553"> out1[<span class="tok-number">6</span>] = x17;</span> <span class="line" id="L1554"> out1[<span class="tok-number">7</span>] = x18;</span> <span class="line" id="L1555"> out1[<span class="tok-number">8</span>] = x19;</span> <span class="line" id="L1556"> out1[<span class="tok-number">9</span>] = x21;</span> <span class="line" id="L1557"> out1[<span class="tok-number">10</span>] = x23;</span> <span class="line" id="L1558"> out1[<span class="tok-number">11</span>] = x25;</span> <span class="line" id="L1559"> out1[<span class="tok-number">12</span>] = x27;</span> <span class="line" id="L1560"> out1[<span class="tok-number">13</span>] = x29;</span> <span class="line" id="L1561"> out1[<span class="tok-number">14</span>] = x31;</span> <span class="line" id="L1562"> out1[<span class="tok-number">15</span>] = x32;</span> <span class="line" id="L1563"> out1[<span class="tok-number">16</span>] = x33;</span> <span class="line" id="L1564"> out1[<span class="tok-number">17</span>] = x35;</span> <span class="line" id="L1565"> out1[<span class="tok-number">18</span>] = x37;</span> <span class="line" id="L1566"> out1[<span class="tok-number">19</span>] = x39;</span> <span class="line" id="L1567"> out1[<span class="tok-number">20</span>] = x41;</span> <span class="line" id="L1568"> out1[<span class="tok-number">21</span>] = x43;</span> <span class="line" id="L1569"> out1[<span class="tok-number">22</span>] = x45;</span> <span class="line" id="L1570"> out1[<span class="tok-number">23</span>] = x46;</span> <span class="line" id="L1571"> out1[<span class="tok-number">24</span>] = x47;</span> <span class="line" id="L1572"> out1[<span class="tok-number">25</span>] = x49;</span> <span class="line" id="L1573"> out1[<span class="tok-number">26</span>] = x51;</span> <span class="line" id="L1574"> out1[<span class="tok-number">27</span>] = x53;</span> <span class="line" id="L1575"> out1[<span class="tok-number">28</span>] = x55;</span> <span class="line" id="L1576"> out1[<span class="tok-number">29</span>] = x57;</span> <span class="line" id="L1577"> out1[<span class="tok-number">30</span>] = x59;</span> <span class="line" id="L1578"> out1[<span class="tok-number">31</span>] = x60;</span> <span class="line" id="L1579">}</span> <span class="line" id="L1580"></span> <span class="line" id="L1581"><span class="tok-comment">/// The function fromBytes deserializes a field element NOT in the Montgomery domain from bytes in little-endian order.</span></span> <span class="line" id="L1582"><span class="tok-comment">///</span></span> <span class="line" id="L1583"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L1584"><span class="tok-comment">/// 0 ≤ bytes_eval arg1 < m</span></span> <span class="line" id="L1585"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L1586"><span class="tok-comment">/// eval out1 mod m = bytes_eval arg1 mod m</span></span> <span class="line" id="L1587"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L1588"><span class="tok-comment">///</span></span> <span class="line" id="L1589"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L1590"><span class="tok-comment">/// arg1: [[0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff]]</span></span> <span class="line" id="L1591"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L1592"><span class="tok-comment">/// out1: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1593"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromBytes</span>(out1: [<span class="tok-number">4</span>]<span class="tok-type">u64</span>, arg1: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L1594"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L1595"></span> <span class="line" id="L1596"> <span class="tok-kw">const</span> x1 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">31</span>])) << <span class="tok-number">56</span>);</span> <span class="line" id="L1597"> <span class="tok-kw">const</span> x2 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">30</span>])) << <span class="tok-number">48</span>);</span> <span class="line" id="L1598"> <span class="tok-kw">const</span> x3 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">29</span>])) << <span class="tok-number">40</span>);</span> <span class="line" id="L1599"> <span class="tok-kw">const</span> x4 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">28</span>])) << <span class="tok-number">32</span>);</span> <span class="line" id="L1600"> <span class="tok-kw">const</span> x5 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">27</span>])) << <span class="tok-number">24</span>);</span> <span class="line" id="L1601"> <span class="tok-kw">const</span> x6 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">26</span>])) << <span class="tok-number">16</span>);</span> <span class="line" id="L1602"> <span class="tok-kw">const</span> x7 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">25</span>])) << <span class="tok-number">8</span>);</span> <span class="line" id="L1603"> <span class="tok-kw">const</span> x8 = (arg1[<span class="tok-number">24</span>]);</span> <span class="line" id="L1604"> <span class="tok-kw">const</span> x9 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">23</span>])) << <span class="tok-number">56</span>);</span> <span class="line" id="L1605"> <span class="tok-kw">const</span> x10 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">22</span>])) << <span class="tok-number">48</span>);</span> <span class="line" id="L1606"> <span class="tok-kw">const</span> x11 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">21</span>])) << <span class="tok-number">40</span>);</span> <span class="line" id="L1607"> <span class="tok-kw">const</span> x12 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">20</span>])) << <span class="tok-number">32</span>);</span> <span class="line" id="L1608"> <span class="tok-kw">const</span> x13 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">19</span>])) << <span class="tok-number">24</span>);</span> <span class="line" id="L1609"> <span class="tok-kw">const</span> x14 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">18</span>])) << <span class="tok-number">16</span>);</span> <span class="line" id="L1610"> <span class="tok-kw">const</span> x15 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">17</span>])) << <span class="tok-number">8</span>);</span> <span class="line" id="L1611"> <span class="tok-kw">const</span> x16 = (arg1[<span class="tok-number">16</span>]);</span> <span class="line" id="L1612"> <span class="tok-kw">const</span> x17 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">15</span>])) << <span class="tok-number">56</span>);</span> <span class="line" id="L1613"> <span class="tok-kw">const</span> x18 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">14</span>])) << <span class="tok-number">48</span>);</span> <span class="line" id="L1614"> <span class="tok-kw">const</span> x19 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">13</span>])) << <span class="tok-number">40</span>);</span> <span class="line" id="L1615"> <span class="tok-kw">const</span> x20 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">12</span>])) << <span class="tok-number">32</span>);</span> <span class="line" id="L1616"> <span class="tok-kw">const</span> x21 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">11</span>])) << <span class="tok-number">24</span>);</span> <span class="line" id="L1617"> <span class="tok-kw">const</span> x22 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">10</span>])) << <span class="tok-number">16</span>);</span> <span class="line" id="L1618"> <span class="tok-kw">const</span> x23 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">9</span>])) << <span class="tok-number">8</span>);</span> <span class="line" id="L1619"> <span class="tok-kw">const</span> x24 = (arg1[<span class="tok-number">8</span>]);</span> <span class="line" id="L1620"> <span class="tok-kw">const</span> x25 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">7</span>])) << <span class="tok-number">56</span>);</span> <span class="line" id="L1621"> <span class="tok-kw">const</span> x26 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">6</span>])) << <span class="tok-number">48</span>);</span> <span class="line" id="L1622"> <span class="tok-kw">const</span> x27 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">5</span>])) << <span class="tok-number">40</span>);</span> <span class="line" id="L1623"> <span class="tok-kw">const</span> x28 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">4</span>])) << <span class="tok-number">32</span>);</span> <span class="line" id="L1624"> <span class="tok-kw">const</span> x29 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">3</span>])) << <span class="tok-number">24</span>);</span> <span class="line" id="L1625"> <span class="tok-kw">const</span> x30 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">2</span>])) << <span class="tok-number">16</span>);</span> <span class="line" id="L1626"> <span class="tok-kw">const</span> x31 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">1</span>])) << <span class="tok-number">8</span>);</span> <span class="line" id="L1627"> <span class="tok-kw">const</span> x32 = (arg1[<span class="tok-number">0</span>]);</span> <span class="line" id="L1628"> <span class="tok-kw">const</span> x33 = (x31 + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x32));</span> <span class="line" id="L1629"> <span class="tok-kw">const</span> x34 = (x30 + x33);</span> <span class="line" id="L1630"> <span class="tok-kw">const</span> x35 = (x29 + x34);</span> <span class="line" id="L1631"> <span class="tok-kw">const</span> x36 = (x28 + x35);</span> <span class="line" id="L1632"> <span class="tok-kw">const</span> x37 = (x27 + x36);</span> <span class="line" id="L1633"> <span class="tok-kw">const</span> x38 = (x26 + x37);</span> <span class="line" id="L1634"> <span class="tok-kw">const</span> x39 = (x25 + x38);</span> <span class="line" id="L1635"> <span class="tok-kw">const</span> x40 = (x23 + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x24));</span> <span class="line" id="L1636"> <span class="tok-kw">const</span> x41 = (x22 + x40);</span> <span class="line" id="L1637"> <span class="tok-kw">const</span> x42 = (x21 + x41);</span> <span class="line" id="L1638"> <span class="tok-kw">const</span> x43 = (x20 + x42);</span> <span class="line" id="L1639"> <span class="tok-kw">const</span> x44 = (x19 + x43);</span> <span class="line" id="L1640"> <span class="tok-kw">const</span> x45 = (x18 + x44);</span> <span class="line" id="L1641"> <span class="tok-kw">const</span> x46 = (x17 + x45);</span> <span class="line" id="L1642"> <span class="tok-kw">const</span> x47 = (x15 + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x16));</span> <span class="line" id="L1643"> <span class="tok-kw">const</span> x48 = (x14 + x47);</span> <span class="line" id="L1644"> <span class="tok-kw">const</span> x49 = (x13 + x48);</span> <span class="line" id="L1645"> <span class="tok-kw">const</span> x50 = (x12 + x49);</span> <span class="line" id="L1646"> <span class="tok-kw">const</span> x51 = (x11 + x50);</span> <span class="line" id="L1647"> <span class="tok-kw">const</span> x52 = (x10 + x51);</span> <span class="line" id="L1648"> <span class="tok-kw">const</span> x53 = (x9 + x52);</span> <span class="line" id="L1649"> <span class="tok-kw">const</span> x54 = (x7 + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x8));</span> <span class="line" id="L1650"> <span class="tok-kw">const</span> x55 = (x6 + x54);</span> <span class="line" id="L1651"> <span class="tok-kw">const</span> x56 = (x5 + x55);</span> <span class="line" id="L1652"> <span class="tok-kw">const</span> x57 = (x4 + x56);</span> <span class="line" id="L1653"> <span class="tok-kw">const</span> x58 = (x3 + x57);</span> <span class="line" id="L1654"> <span class="tok-kw">const</span> x59 = (x2 + x58);</span> <span class="line" id="L1655"> <span class="tok-kw">const</span> x60 = (x1 + x59);</span> <span class="line" id="L1656"> out1[<span class="tok-number">0</span>] = x39;</span> <span class="line" id="L1657"> out1[<span class="tok-number">1</span>] = x46;</span> <span class="line" id="L1658"> out1[<span class="tok-number">2</span>] = x53;</span> <span class="line" id="L1659"> out1[<span class="tok-number">3</span>] = x60;</span> <span class="line" id="L1660">}</span> <span class="line" id="L1661"></span> <span class="line" id="L1662"><span class="tok-comment">/// The function setOne returns the field element one in the Montgomery domain.</span></span> <span class="line" id="L1663"><span class="tok-comment">///</span></span> <span class="line" id="L1664"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L1665"><span class="tok-comment">/// eval (from_montgomery out1) mod m = 1 mod m</span></span> <span class="line" id="L1666"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L1667"><span class="tok-comment">///</span></span> <span class="line" id="L1668"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">setOne</span>(out1: MontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L1669"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L1670"></span> <span class="line" id="L1671"> out1[<span class="tok-number">0</span>] = <span class="tok-number">0x1000003d1</span>;</span> <span class="line" id="L1672"> out1[<span class="tok-number">1</span>] = <span class="tok-number">0x0</span>;</span> <span class="line" id="L1673"> out1[<span class="tok-number">2</span>] = <span class="tok-number">0x0</span>;</span> <span class="line" id="L1674"> out1[<span class="tok-number">3</span>] = <span class="tok-number">0x0</span>;</span> <span class="line" id="L1675">}</span> <span class="line" id="L1676"></span> <span class="line" id="L1677"><span class="tok-comment">/// The function msat returns the saturated representation of the prime modulus.</span></span> <span class="line" id="L1678"><span class="tok-comment">///</span></span> <span class="line" id="L1679"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L1680"><span class="tok-comment">/// twos_complement_eval out1 = m</span></span> <span class="line" id="L1681"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L1682"><span class="tok-comment">///</span></span> <span class="line" id="L1683"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L1684"><span class="tok-comment">/// out1: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1685"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">msat</span>(out1: [<span class="tok-number">5</span>]<span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L1686"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L1687"></span> <span class="line" id="L1688"> out1[<span class="tok-number">0</span>] = <span class="tok-number">0xfffffffefffffc2f</span>;</span> <span class="line" id="L1689"> out1[<span class="tok-number">1</span>] = <span class="tok-number">0xffffffffffffffff</span>;</span> <span class="line" id="L1690"> out1[<span class="tok-number">2</span>] = <span class="tok-number">0xffffffffffffffff</span>;</span> <span class="line" id="L1691"> out1[<span class="tok-number">3</span>] = <span class="tok-number">0xffffffffffffffff</span>;</span> <span class="line" id="L1692"> out1[<span class="tok-number">4</span>] = <span class="tok-number">0x0</span>;</span> <span class="line" id="L1693">}</span> <span class="line" id="L1694"></span> <span class="line" id="L1695"><span class="tok-comment">/// The function divstep computes a divstep.</span></span> <span class="line" id="L1696"><span class="tok-comment">///</span></span> <span class="line" id="L1697"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L1698"><span class="tok-comment">/// 0 ≤ eval arg4 < m</span></span> <span class="line" id="L1699"><span class="tok-comment">/// 0 ≤ eval arg5 < m</span></span> <span class="line" id="L1700"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L1701"><span class="tok-comment">/// out1 = (if 0 < arg1 ∧ (twos_complement_eval arg3) is odd then 1 - arg1 else 1 + arg1)</span></span> <span class="line" id="L1702"><span class="tok-comment">/// twos_complement_eval out2 = (if 0 < arg1 ∧ (twos_complement_eval arg3) is odd then twos_complement_eval arg3 else twos_complement_eval arg2)</span></span> <span class="line" id="L1703"><span class="tok-comment">/// twos_complement_eval out3 = (if 0 < arg1 ∧ (twos_complement_eval arg3) is odd then ⌊(twos_complement_eval arg3 - twos_complement_eval arg2) / 2⌋ else ⌊(twos_complement_eval arg3 + (twos_complement_eval arg3 mod 2) * twos_complement_eval arg2) / 2⌋)</span></span> <span class="line" id="L1704"><span class="tok-comment">/// eval (from_montgomery out4) mod m = (if 0 < arg1 ∧ (twos_complement_eval arg3) is odd then (2 * eval (from_montgomery arg5)) mod m else (2 * eval (from_montgomery arg4)) mod m)</span></span> <span class="line" id="L1705"><span class="tok-comment">/// eval (from_montgomery out5) mod m = (if 0 < arg1 ∧ (twos_complement_eval arg3) is odd then (eval (from_montgomery arg4) - eval (from_montgomery arg4)) mod m else (eval (from_montgomery arg5) + (twos_complement_eval arg3 mod 2) * eval (from_montgomery arg4)) mod m)</span></span> <span class="line" id="L1706"><span class="tok-comment">/// 0 ≤ eval out5 < m</span></span> <span class="line" id="L1707"><span class="tok-comment">/// 0 ≤ eval out5 < m</span></span> <span class="line" id="L1708"><span class="tok-comment">/// 0 ≤ eval out2 < m</span></span> <span class="line" id="L1709"><span class="tok-comment">/// 0 ≤ eval out3 < m</span></span> <span class="line" id="L1710"><span class="tok-comment">///</span></span> <span class="line" id="L1711"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L1712"><span class="tok-comment">/// arg1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L1713"><span class="tok-comment">/// arg2: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1714"><span class="tok-comment">/// arg3: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1715"><span class="tok-comment">/// arg4: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1716"><span class="tok-comment">/// arg5: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1717"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L1718"><span class="tok-comment">/// out1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L1719"><span class="tok-comment">/// out2: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1720"><span class="tok-comment">/// out3: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1721"><span class="tok-comment">/// out4: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1722"><span class="tok-comment">/// out5: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1723"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">divstep</span>(out1: <span class="tok-type">u64</span>, out2: [<span class="tok-number">5</span>]<span class="tok-type">u64</span>, out3: [<span class="tok-number">5</span>]<span class="tok-type">u64</span>, out4: [<span class="tok-number">4</span>]<span class="tok-type">u64</span>, out5: [<span class="tok-number">4</span>]<span class="tok-type">u64</span>, arg1: <span class="tok-type">u64</span>, arg2: [<span class="tok-number">5</span>]<span class="tok-type">u64</span>, arg3: [<span class="tok-number">5</span>]<span class="tok-type">u64</span>, arg4: [<span class="tok-number">4</span>]<span class="tok-type">u64</span>, arg5: [<span class="tok-number">4</span>]<span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L1724"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L1725"></span> <span class="line" id="L1726"> <span class="tok-kw">var</span> x1: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1727"> <span class="tok-kw">var</span> x2: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1728"> addcarryxU64(&x1, &x2, <span class="tok-number">0x0</span>, (~arg1), <span class="tok-number">0x1</span>);</span> <span class="line" id="L1729"> <span class="tok-kw">const</span> x3 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u1</span>, <span class="tok-builtin">@truncate</span>((x1 >> <span class="tok-number">63</span>))) & <span class="tok-builtin">@as</span>(<span class="tok-type">u1</span>, <span class="tok-builtin">@truncate</span>(((arg3[<span class="tok-number">0</span>]) & <span class="tok-number">0x1</span>))));</span> <span class="line" id="L1730"> <span class="tok-kw">var</span> x4: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1731"> <span class="tok-kw">var</span> x5: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1732"> addcarryxU64(&x4, &x5, <span class="tok-number">0x0</span>, (~arg1), <span class="tok-number">0x1</span>);</span> <span class="line" id="L1733"> <span class="tok-kw">var</span> x6: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1734"> cmovznzU64(&x6, x3, arg1, x4);</span> <span class="line" id="L1735"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1736"> cmovznzU64(&x7, x3, (arg2[<span class="tok-number">0</span>]), (arg3[<span class="tok-number">0</span>]));</span> <span class="line" id="L1737"> <span class="tok-kw">var</span> x8: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1738"> cmovznzU64(&x8, x3, (arg2[<span class="tok-number">1</span>]), (arg3[<span class="tok-number">1</span>]));</span> <span class="line" id="L1739"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1740"> cmovznzU64(&x9, x3, (arg2[<span class="tok-number">2</span>]), (arg3[<span class="tok-number">2</span>]));</span> <span class="line" id="L1741"> <span class="tok-kw">var</span> x10: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1742"> cmovznzU64(&x10, x3, (arg2[<span class="tok-number">3</span>]), (arg3[<span class="tok-number">3</span>]));</span> <span class="line" id="L1743"> <span class="tok-kw">var</span> x11: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1744"> cmovznzU64(&x11, x3, (arg2[<span class="tok-number">4</span>]), (arg3[<span class="tok-number">4</span>]));</span> <span class="line" id="L1745"> <span class="tok-kw">var</span> x12: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1746"> <span class="tok-kw">var</span> x13: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1747"> addcarryxU64(&x12, &x13, <span class="tok-number">0x0</span>, <span class="tok-number">0x1</span>, (~(arg2[<span class="tok-number">0</span>])));</span> <span class="line" id="L1748"> <span class="tok-kw">var</span> x14: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1749"> <span class="tok-kw">var</span> x15: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1750"> addcarryxU64(&x14, &x15, x13, <span class="tok-number">0x0</span>, (~(arg2[<span class="tok-number">1</span>])));</span> <span class="line" id="L1751"> <span class="tok-kw">var</span> x16: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1752"> <span class="tok-kw">var</span> x17: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1753"> addcarryxU64(&x16, &x17, x15, <span class="tok-number">0x0</span>, (~(arg2[<span class="tok-number">2</span>])));</span> <span class="line" id="L1754"> <span class="tok-kw">var</span> x18: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1755"> <span class="tok-kw">var</span> x19: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1756"> addcarryxU64(&x18, &x19, x17, <span class="tok-number">0x0</span>, (~(arg2[<span class="tok-number">3</span>])));</span> <span class="line" id="L1757"> <span class="tok-kw">var</span> x20: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1758"> <span class="tok-kw">var</span> x21: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1759"> addcarryxU64(&x20, &x21, x19, <span class="tok-number">0x0</span>, (~(arg2[<span class="tok-number">4</span>])));</span> <span class="line" id="L1760"> <span class="tok-kw">var</span> x22: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1761"> cmovznzU64(&x22, x3, (arg3[<span class="tok-number">0</span>]), x12);</span> <span class="line" id="L1762"> <span class="tok-kw">var</span> x23: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1763"> cmovznzU64(&x23, x3, (arg3[<span class="tok-number">1</span>]), x14);</span> <span class="line" id="L1764"> <span class="tok-kw">var</span> x24: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1765"> cmovznzU64(&x24, x3, (arg3[<span class="tok-number">2</span>]), x16);</span> <span class="line" id="L1766"> <span class="tok-kw">var</span> x25: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1767"> cmovznzU64(&x25, x3, (arg3[<span class="tok-number">3</span>]), x18);</span> <span class="line" id="L1768"> <span class="tok-kw">var</span> x26: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1769"> cmovznzU64(&x26, x3, (arg3[<span class="tok-number">4</span>]), x20);</span> <span class="line" id="L1770"> <span class="tok-kw">var</span> x27: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1771"> cmovznzU64(&x27, x3, (arg4[<span class="tok-number">0</span>]), (arg5[<span class="tok-number">0</span>]));</span> <span class="line" id="L1772"> <span class="tok-kw">var</span> x28: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1773"> cmovznzU64(&x28, x3, (arg4[<span class="tok-number">1</span>]), (arg5[<span class="tok-number">1</span>]));</span> <span class="line" id="L1774"> <span class="tok-kw">var</span> x29: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1775"> cmovznzU64(&x29, x3, (arg4[<span class="tok-number">2</span>]), (arg5[<span class="tok-number">2</span>]));</span> <span class="line" id="L1776"> <span class="tok-kw">var</span> x30: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1777"> cmovznzU64(&x30, x3, (arg4[<span class="tok-number">3</span>]), (arg5[<span class="tok-number">3</span>]));</span> <span class="line" id="L1778"> <span class="tok-kw">var</span> x31: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1779"> <span class="tok-kw">var</span> x32: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1780"> addcarryxU64(&x31, &x32, <span class="tok-number">0x0</span>, x27, x27);</span> <span class="line" id="L1781"> <span class="tok-kw">var</span> x33: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1782"> <span class="tok-kw">var</span> x34: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1783"> addcarryxU64(&x33, &x34, x32, x28, x28);</span> <span class="line" id="L1784"> <span class="tok-kw">var</span> x35: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1785"> <span class="tok-kw">var</span> x36: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1786"> addcarryxU64(&x35, &x36, x34, x29, x29);</span> <span class="line" id="L1787"> <span class="tok-kw">var</span> x37: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1788"> <span class="tok-kw">var</span> x38: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1789"> addcarryxU64(&x37, &x38, x36, x30, x30);</span> <span class="line" id="L1790"> <span class="tok-kw">var</span> x39: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1791"> <span class="tok-kw">var</span> x40: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1792"> subborrowxU64(&x39, &x40, <span class="tok-number">0x0</span>, x31, <span class="tok-number">0xfffffffefffffc2f</span>);</span> <span class="line" id="L1793"> <span class="tok-kw">var</span> x41: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1794"> <span class="tok-kw">var</span> x42: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1795"> subborrowxU64(&x41, &x42, x40, x33, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1796"> <span class="tok-kw">var</span> x43: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1797"> <span class="tok-kw">var</span> x44: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1798"> subborrowxU64(&x43, &x44, x42, x35, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1799"> <span class="tok-kw">var</span> x45: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1800"> <span class="tok-kw">var</span> x46: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1801"> subborrowxU64(&x45, &x46, x44, x37, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1802"> <span class="tok-kw">var</span> x47: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1803"> <span class="tok-kw">var</span> x48: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1804"> subborrowxU64(&x47, &x48, x46, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x38), <span class="tok-number">0x0</span>);</span> <span class="line" id="L1805"> <span class="tok-kw">const</span> x49 = (arg4[<span class="tok-number">3</span>]);</span> <span class="line" id="L1806"> <span class="tok-kw">const</span> x50 = (arg4[<span class="tok-number">2</span>]);</span> <span class="line" id="L1807"> <span class="tok-kw">const</span> x51 = (arg4[<span class="tok-number">1</span>]);</span> <span class="line" id="L1808"> <span class="tok-kw">const</span> x52 = (arg4[<span class="tok-number">0</span>]);</span> <span class="line" id="L1809"> <span class="tok-kw">var</span> x53: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1810"> <span class="tok-kw">var</span> x54: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1811"> subborrowxU64(&x53, &x54, <span class="tok-number">0x0</span>, <span class="tok-number">0x0</span>, x52);</span> <span class="line" id="L1812"> <span class="tok-kw">var</span> x55: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1813"> <span class="tok-kw">var</span> x56: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1814"> subborrowxU64(&x55, &x56, x54, <span class="tok-number">0x0</span>, x51);</span> <span class="line" id="L1815"> <span class="tok-kw">var</span> x57: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1816"> <span class="tok-kw">var</span> x58: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1817"> subborrowxU64(&x57, &x58, x56, <span class="tok-number">0x0</span>, x50);</span> <span class="line" id="L1818"> <span class="tok-kw">var</span> x59: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1819"> <span class="tok-kw">var</span> x60: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1820"> subborrowxU64(&x59, &x60, x58, <span class="tok-number">0x0</span>, x49);</span> <span class="line" id="L1821"> <span class="tok-kw">var</span> x61: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1822"> cmovznzU64(&x61, x60, <span class="tok-number">0x0</span>, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1823"> <span class="tok-kw">var</span> x62: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1824"> <span class="tok-kw">var</span> x63: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1825"> addcarryxU64(&x62, &x63, <span class="tok-number">0x0</span>, x53, (x61 & <span class="tok-number">0xfffffffefffffc2f</span>));</span> <span class="line" id="L1826"> <span class="tok-kw">var</span> x64: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1827"> <span class="tok-kw">var</span> x65: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1828"> addcarryxU64(&x64, &x65, x63, x55, x61);</span> <span class="line" id="L1829"> <span class="tok-kw">var</span> x66: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1830"> <span class="tok-kw">var</span> x67: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1831"> addcarryxU64(&x66, &x67, x65, x57, x61);</span> <span class="line" id="L1832"> <span class="tok-kw">var</span> x68: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1833"> <span class="tok-kw">var</span> x69: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1834"> addcarryxU64(&x68, &x69, x67, x59, x61);</span> <span class="line" id="L1835"> <span class="tok-kw">var</span> x70: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1836"> cmovznzU64(&x70, x3, (arg5[<span class="tok-number">0</span>]), x62);</span> <span class="line" id="L1837"> <span class="tok-kw">var</span> x71: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1838"> cmovznzU64(&x71, x3, (arg5[<span class="tok-number">1</span>]), x64);</span> <span class="line" id="L1839"> <span class="tok-kw">var</span> x72: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1840"> cmovznzU64(&x72, x3, (arg5[<span class="tok-number">2</span>]), x66);</span> <span class="line" id="L1841"> <span class="tok-kw">var</span> x73: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1842"> cmovznzU64(&x73, x3, (arg5[<span class="tok-number">3</span>]), x68);</span> <span class="line" id="L1843"> <span class="tok-kw">const</span> x74 = <span class="tok-builtin">@as</span>(<span class="tok-type">u1</span>, <span class="tok-builtin">@truncate</span>((x22 & <span class="tok-number">0x1</span>)));</span> <span class="line" id="L1844"> <span class="tok-kw">var</span> x75: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1845"> cmovznzU64(&x75, x74, <span class="tok-number">0x0</span>, x7);</span> <span class="line" id="L1846"> <span class="tok-kw">var</span> x76: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1847"> cmovznzU64(&x76, x74, <span class="tok-number">0x0</span>, x8);</span> <span class="line" id="L1848"> <span class="tok-kw">var</span> x77: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1849"> cmovznzU64(&x77, x74, <span class="tok-number">0x0</span>, x9);</span> <span class="line" id="L1850"> <span class="tok-kw">var</span> x78: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1851"> cmovznzU64(&x78, x74, <span class="tok-number">0x0</span>, x10);</span> <span class="line" id="L1852"> <span class="tok-kw">var</span> x79: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1853"> cmovznzU64(&x79, x74, <span class="tok-number">0x0</span>, x11);</span> <span class="line" id="L1854"> <span class="tok-kw">var</span> x80: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1855"> <span class="tok-kw">var</span> x81: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1856"> addcarryxU64(&x80, &x81, <span class="tok-number">0x0</span>, x22, x75);</span> <span class="line" id="L1857"> <span class="tok-kw">var</span> x82: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1858"> <span class="tok-kw">var</span> x83: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1859"> addcarryxU64(&x82, &x83, x81, x23, x76);</span> <span class="line" id="L1860"> <span class="tok-kw">var</span> x84: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1861"> <span class="tok-kw">var</span> x85: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1862"> addcarryxU64(&x84, &x85, x83, x24, x77);</span> <span class="line" id="L1863"> <span class="tok-kw">var</span> x86: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1864"> <span class="tok-kw">var</span> x87: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1865"> addcarryxU64(&x86, &x87, x85, x25, x78);</span> <span class="line" id="L1866"> <span class="tok-kw">var</span> x88: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1867"> <span class="tok-kw">var</span> x89: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1868"> addcarryxU64(&x88, &x89, x87, x26, x79);</span> <span class="line" id="L1869"> <span class="tok-kw">var</span> x90: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1870"> cmovznzU64(&x90, x74, <span class="tok-number">0x0</span>, x27);</span> <span class="line" id="L1871"> <span class="tok-kw">var</span> x91: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1872"> cmovznzU64(&x91, x74, <span class="tok-number">0x0</span>, x28);</span> <span class="line" id="L1873"> <span class="tok-kw">var</span> x92: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1874"> cmovznzU64(&x92, x74, <span class="tok-number">0x0</span>, x29);</span> <span class="line" id="L1875"> <span class="tok-kw">var</span> x93: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1876"> cmovznzU64(&x93, x74, <span class="tok-number">0x0</span>, x30);</span> <span class="line" id="L1877"> <span class="tok-kw">var</span> x94: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1878"> <span class="tok-kw">var</span> x95: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1879"> addcarryxU64(&x94, &x95, <span class="tok-number">0x0</span>, x70, x90);</span> <span class="line" id="L1880"> <span class="tok-kw">var</span> x96: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1881"> <span class="tok-kw">var</span> x97: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1882"> addcarryxU64(&x96, &x97, x95, x71, x91);</span> <span class="line" id="L1883"> <span class="tok-kw">var</span> x98: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1884"> <span class="tok-kw">var</span> x99: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1885"> addcarryxU64(&x98, &x99, x97, x72, x92);</span> <span class="line" id="L1886"> <span class="tok-kw">var</span> x100: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1887"> <span class="tok-kw">var</span> x101: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1888"> addcarryxU64(&x100, &x101, x99, x73, x93);</span> <span class="line" id="L1889"> <span class="tok-kw">var</span> x102: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1890"> <span class="tok-kw">var</span> x103: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1891"> subborrowxU64(&x102, &x103, <span class="tok-number">0x0</span>, x94, <span class="tok-number">0xfffffffefffffc2f</span>);</span> <span class="line" id="L1892"> <span class="tok-kw">var</span> x104: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1893"> <span class="tok-kw">var</span> x105: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1894"> subborrowxU64(&x104, &x105, x103, x96, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1895"> <span class="tok-kw">var</span> x106: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1896"> <span class="tok-kw">var</span> x107: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1897"> subborrowxU64(&x106, &x107, x105, x98, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1898"> <span class="tok-kw">var</span> x108: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1899"> <span class="tok-kw">var</span> x109: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1900"> subborrowxU64(&x108, &x109, x107, x100, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1901"> <span class="tok-kw">var</span> x110: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1902"> <span class="tok-kw">var</span> x111: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1903"> subborrowxU64(&x110, &x111, x109, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x101), <span class="tok-number">0x0</span>);</span> <span class="line" id="L1904"> <span class="tok-kw">var</span> x112: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1905"> <span class="tok-kw">var</span> x113: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1906"> addcarryxU64(&x112, &x113, <span class="tok-number">0x0</span>, x6, <span class="tok-number">0x1</span>);</span> <span class="line" id="L1907"> <span class="tok-kw">const</span> x114 = ((x80 >> <span class="tok-number">1</span>) \| ((x82 << <span class="tok-number">63</span>) & <span class="tok-number">0xffffffffffffffff</span>));</span> <span class="line" id="L1908"> <span class="tok-kw">const</span> x115 = ((x82 >> <span class="tok-number">1</span>) \| ((x84 << <span class="tok-number">63</span>) & <span class="tok-number">0xffffffffffffffff</span>));</span> <span class="line" id="L1909"> <span class="tok-kw">const</span> x116 = ((x84 >> <span class="tok-number">1</span>) \| ((x86 << <span class="tok-number">63</span>) & <span class="tok-number">0xffffffffffffffff</span>));</span> <span class="line" id="L1910"> <span class="tok-kw">const</span> x117 = ((x86 >> <span class="tok-number">1</span>) \| ((x88 << <span class="tok-number">63</span>) & <span class="tok-number">0xffffffffffffffff</span>));</span> <span class="line" id="L1911"> <span class="tok-kw">const</span> x118 = ((x88 & <span class="tok-number">0x8000000000000000</span>) \| (x88 >> <span class="tok-number">1</span>));</span> <span class="line" id="L1912"> <span class="tok-kw">var</span> x119: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1913"> cmovznzU64(&x119, x48, x39, x31);</span> <span class="line" id="L1914"> <span class="tok-kw">var</span> x120: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1915"> cmovznzU64(&x120, x48, x41, x33);</span> <span class="line" id="L1916"> <span class="tok-kw">var</span> x121: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1917"> cmovznzU64(&x121, x48, x43, x35);</span> <span class="line" id="L1918"> <span class="tok-kw">var</span> x122: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1919"> cmovznzU64(&x122, x48, x45, x37);</span> <span class="line" id="L1920"> <span class="tok-kw">var</span> x123: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1921"> cmovznzU64(&x123, x111, x102, x94);</span> <span class="line" id="L1922"> <span class="tok-kw">var</span> x124: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1923"> cmovznzU64(&x124, x111, x104, x96);</span> <span class="line" id="L1924"> <span class="tok-kw">var</span> x125: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1925"> cmovznzU64(&x125, x111, x106, x98);</span> <span class="line" id="L1926"> <span class="tok-kw">var</span> x126: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1927"> cmovznzU64(&x126, x111, x108, x100);</span> <span class="line" id="L1928"> out1. = x112;</span> <span class="line" id="L1929"> out2[<span class="tok-number">0</span>] = x7;</span> <span class="line" id="L1930"> out2[<span class="tok-number">1</span>] = x8;</span> <span class="line" id="L1931"> out2[<span class="tok-number">2</span>] = x9;</span> <span class="line" id="L1932"> out2[<span class="tok-number">3</span>] = x10;</span> <span class="line" id="L1933"> out2[<span class="tok-number">4</span>] = x11;</span> <span class="line" id="L1934"> out3[<span class="tok-number">0</span>] = x114;</span> <span class="line" id="L1935"> out3[<span class="tok-number">1</span>] = x115;</span> <span class="line" id="L1936"> out3[<span class="tok-number">2</span>] = x116;</span> <span class="line" id="L1937"> out3[<span class="tok-number">3</span>] = x117;</span> <span class="line" id="L1938"> out3[<span class="tok-number">4</span>] = x118;</span> <span class="line" id="L1939"> out4[<span class="tok-number">0</span>] = x119;</span> <span class="line" id="L1940"> out4[<span class="tok-number">1</span>] = x120;</span> <span class="line" id="L1941"> out4[<span class="tok-number">2</span>] = x121;</span> <span class="line" id="L1942"> out4[<span class="tok-number">3</span>] = x122;</span> <span class="line" id="L1943"> out5[<span class="tok-number">0</span>] = x123;</span> <span class="line" id="L1944"> out5[<span class="tok-number">1</span>] = x124;</span> <span class="line" id="L1945"> out5[<span class="tok-number">2</span>] = x125;</span> <span class="line" id="L1946"> out5[<span class="tok-number">3</span>] = x126;</span> <span class="line" id="L1947">}</span> <span class="line" id="L1948"></span> <span class="line" id="L1949"><span class="tok-comment">/// The function divstepPrecomp returns the precomputed value for Bernstein-Yang-inversion (in montgomery form).</span></span> <span class="line" id="L1950"><span class="tok-comment">///</span></span> <span class="line" id="L1951"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L1952"><span class="tok-comment">/// eval (from_montgomery out1) = ⌊(m - 1) / 2⌋^(if ⌊log2 m⌋ + 1 < 46 then ⌊(49 * (⌊log2 m⌋ + 1) + 80) / 17⌋ else ⌊(49 * (⌊log2 m⌋ + 1) + 57) / 17⌋)</span></span> <span class="line" id="L1953"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L1954"><span class="tok-comment">///</span></span> <span class="line" id="L1955"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L1956"><span class="tok-comment">/// out1: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1957"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">divstepPrecomp</span>(out1: *[<span class="tok-number">4</span>]<span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L1958"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L1959"></span> <span class="line" id="L1960"> out1[<span class="tok-number">0</span>] = <span class="tok-number">0xf201a41831525e0a</span>;</span> <span class="line" id="L1961"> out1[<span class="tok-number">1</span>] = <span class="tok-number">0x9953f9ddcd648d85</span>;</span> <span class="line" id="L1962"> out1[<span class="tok-number">2</span>] = <span class="tok-number">0xe86029463db210a9</span>;</span> <span class="line" id="L1963"> out1[<span class="tok-number">3</span>] = <span class="tok-number">0x24fb8a3104b03709</span>;</span> <span class="line" id="L1964">}</span> <span class="line" id="L1965"></span> </code></pre></body> </html>
repos/yazap/docs/src/std/crypto/pcurves	repos/yazap/docs/src/std/crypto/pcurves/secp256k1/secp256k1_scalar_64.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/pcurves/secp256k1/secp256k1_scalar_64.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-comment">// Autogenerated: 'src/ExtractionOCaml/word_by_word_montgomery' --lang Zig --internal-static --public-function-case camelCase --private-function-case camelCase --public-type-case UpperCamelCase --private-type-case UpperCamelCase --no-prefix-fiat --package-name secp256k1_scalar '' 64 '2^256 - 432420386565659656852420866394968145599' mul square add sub opp from_montgomery to_montgomery nonzero selectznz to_bytes from_bytes one msat divstep divstep_precomp</span> </span> <span class="line" id="L2"><span class="tok-comment">// curve description (via package name): secp256k1_scalar</span> </span> <span class="line" id="L3"><span class="tok-comment">// machine_wordsize = 64 (from "64")</span> </span> <span class="line" id="L4"><span class="tok-comment">// requested operations: mul, square, add, sub, opp, from_montgomery, to_montgomery, nonzero, selectznz, to_bytes, from_bytes, one, msat, divstep, divstep_precomp</span> </span> <span class="line" id="L5"><span class="tok-comment">// m = 0xfffffffffffffffffffffffffffffffebaaedce6af48a03bbfd25e8cd0364141 (from "2^256 - 432420386565659656852420866394968145599")</span> </span> <span class="line" id="L6"><span class="tok-comment">//</span> </span> <span class="line" id="L7"><span class="tok-comment">// NOTE: In addition to the bounds specified above each function, all</span> </span> <span class="line" id="L8"><span class="tok-comment">// functions synthesized for this Montgomery arithmetic require the</span> </span> <span class="line" id="L9"><span class="tok-comment">// input to be strictly less than the prime modulus (m), and also</span> </span> <span class="line" id="L10"><span class="tok-comment">// require the input to be in the unique saturated representation.</span> </span> <span class="line" id="L11"><span class="tok-comment">// All functions also ensure that these two properties are true of</span> </span> <span class="line" id="L12"><span class="tok-comment">// return values.</span> </span> <span class="line" id="L13"><span class="tok-comment">//</span> </span> <span class="line" id="L14"><span class="tok-comment">// Computed values:</span> </span> <span class="line" id="L15"><span class="tok-comment">// eval z = z[0] + (z[1] << 64) + (z[2] << 128) + (z[3] << 192)</span> </span> <span class="line" id="L16"><span class="tok-comment">// bytes_eval z = z[0] + (z[1] << 8) + (z[2] << 16) + (z[3] << 24) + (z[4] << 32) + (z[5] << 40) + (z[6] << 48) + (z[7] << 56) + (z[8] << 64) + (z[9] << 72) + (z[10] << 80) + (z[11] << 88) + (z[12] << 96) + (z[13] << 104) + (z[14] << 112) + (z[15] << 120) + (z[16] << 128) + (z[17] << 136) + (z[18] << 144) + (z[19] << 152) + (z[20] << 160) + (z[21] << 168) + (z[22] << 176) + (z[23] << 184) + (z[24] << 192) + (z[25] << 200) + (z[26] << 208) + (z[27] << 216) + (z[28] << 224) + (z[29] << 232) + (z[30] << 240) + (z[31] << 248)</span> </span> <span class="line" id="L17"><span class="tok-comment">// twos_complement_eval z = let x1 := z[0] + (z[1] << 64) + (z[2] << 128) + (z[3] << 192) in</span> </span> <span class="line" id="L18"><span class="tok-comment">// if x1 & (2^256-1) < 2^255 then x1 & (2^256-1) else (x1 & (2^256-1)) - 2^256</span> </span> <span class="line" id="L19"></span> <span class="line" id="L20"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L21"><span class="tok-kw">const</span> mode = <span class="tok-builtin">@import</span>(<span class="tok-str">"builtin"</span>).mode; <span class="tok-comment">// Checked arithmetic is disabled in non-debug modes to avoid side channels</span> </span> <span class="line" id="L22"></span> <span class="line" id="L23"><span class="tok-comment">// The type MontgomeryDomainFieldElement is a field element in the Montgomery domain.</span> </span> <span class="line" id="L24"><span class="tok-comment">// Bounds: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span> </span> <span class="line" id="L25"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> MontgomeryDomainFieldElement = [<span class="tok-number">4</span>]<span class="tok-type">u64</span>;</span> <span class="line" id="L26"></span> <span class="line" id="L27"><span class="tok-comment">// The type NonMontgomeryDomainFieldElement is a field element NOT in the Montgomery domain.</span> </span> <span class="line" id="L28"><span class="tok-comment">// Bounds: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span> </span> <span class="line" id="L29"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> NonMontgomeryDomainFieldElement = [<span class="tok-number">4</span>]<span class="tok-type">u64</span>;</span> <span class="line" id="L30"></span> <span class="line" id="L31"><span class="tok-comment">/// The function addcarryxU64 is an addition with carry.</span></span> <span class="line" id="L32"><span class="tok-comment">///</span></span> <span class="line" id="L33"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L34"><span class="tok-comment">/// out1 = (arg1 + arg2 + arg3) mod 2^64</span></span> <span class="line" id="L35"><span class="tok-comment">/// out2 = ⌊(arg1 + arg2 + arg3) / 2^64⌋</span></span> <span class="line" id="L36"><span class="tok-comment">///</span></span> <span class="line" id="L37"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L38"><span class="tok-comment">/// arg1: [0x0 ~> 0x1]</span></span> <span class="line" id="L39"><span class="tok-comment">/// arg2: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L40"><span class="tok-comment">/// arg3: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L41"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L42"><span class="tok-comment">/// out1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L43"><span class="tok-comment">/// out2: [0x0 ~> 0x1]</span></span> <span class="line" id="L44"><span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">addcarryxU64</span>(out1: <span class="tok-type">u64</span>, out2: <span class="tok-type">u1</span>, arg1: <span class="tok-type">u1</span>, arg2: <span class="tok-type">u64</span>, arg3: <span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L45"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L46"></span> <span class="line" id="L47"> <span class="tok-kw">const</span> ov1 = <span class="tok-builtin">@addWithOverflow</span>(arg2, arg3);</span> <span class="line" id="L48"> <span class="tok-kw">const</span> ov2 = <span class="tok-builtin">@addWithOverflow</span>(ov1[<span class="tok-number">0</span>], arg1);</span> <span class="line" id="L49"> out1.* = ov2[<span class="tok-number">0</span>];</span> <span class="line" id="L50"> out2.* = ov1[<span class="tok-number">1</span>] \| ov2[<span class="tok-number">1</span>];</span> <span class="line" id="L51">}</span> <span class="line" id="L52"></span> <span class="line" id="L53"><span class="tok-comment">/// The function subborrowxU64 is a subtraction with borrow.</span></span> <span class="line" id="L54"><span class="tok-comment">///</span></span> <span class="line" id="L55"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L56"><span class="tok-comment">/// out1 = (-arg1 + arg2 + -arg3) mod 2^64</span></span> <span class="line" id="L57"><span class="tok-comment">/// out2 = -⌊(-arg1 + arg2 + -arg3) / 2^64⌋</span></span> <span class="line" id="L58"><span class="tok-comment">///</span></span> <span class="line" id="L59"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L60"><span class="tok-comment">/// arg1: [0x0 ~> 0x1]</span></span> <span class="line" id="L61"><span class="tok-comment">/// arg2: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L62"><span class="tok-comment">/// arg3: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L63"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L64"><span class="tok-comment">/// out1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L65"><span class="tok-comment">/// out2: [0x0 ~> 0x1]</span></span> <span class="line" id="L66"><span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">subborrowxU64</span>(out1: <span class="tok-type">u64</span>, out2: <span class="tok-type">u1</span>, arg1: <span class="tok-type">u1</span>, arg2: <span class="tok-type">u64</span>, arg3: <span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L67"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L68"></span> <span class="line" id="L69"> <span class="tok-kw">const</span> ov1 = <span class="tok-builtin">@subWithOverflow</span>(arg2, arg3);</span> <span class="line" id="L70"> <span class="tok-kw">const</span> ov2 = <span class="tok-builtin">@subWithOverflow</span>(ov1[<span class="tok-number">0</span>], arg1);</span> <span class="line" id="L71"> out1.* = ov2[<span class="tok-number">0</span>];</span> <span class="line" id="L72"> out2.* = ov1[<span class="tok-number">1</span>] \| ov2[<span class="tok-number">1</span>];</span> <span class="line" id="L73">}</span> <span class="line" id="L74"></span> <span class="line" id="L75"><span class="tok-comment">/// The function mulxU64 is a multiplication, returning the full double-width result.</span></span> <span class="line" id="L76"><span class="tok-comment">///</span></span> <span class="line" id="L77"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L78"><span class="tok-comment">/// out1 = (arg1 * arg2) mod 2^64</span></span> <span class="line" id="L79"><span class="tok-comment">/// out2 = ⌊arg1 * arg2 / 2^64⌋</span></span> <span class="line" id="L80"><span class="tok-comment">///</span></span> <span class="line" id="L81"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L82"><span class="tok-comment">/// arg1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L83"><span class="tok-comment">/// arg2: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L84"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L85"><span class="tok-comment">/// out1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L86"><span class="tok-comment">/// out2: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L87"><span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">mulxU64</span>(out1: <span class="tok-type">u64</span>, out2: <span class="tok-type">u64</span>, arg1: <span class="tok-type">u64</span>, arg2: <span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L88"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L89"></span> <span class="line" id="L90"> <span class="tok-kw">const</span> x = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, arg1) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, arg2);</span> <span class="line" id="L91"> out1.* = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(x));</span> <span class="line" id="L92"> out2.* = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(x >> <span class="tok-number">64</span>));</span> <span class="line" id="L93">}</span> <span class="line" id="L94"></span> <span class="line" id="L95"><span class="tok-comment">/// The function cmovznzU64 is a single-word conditional move.</span></span> <span class="line" id="L96"><span class="tok-comment">///</span></span> <span class="line" id="L97"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L98"><span class="tok-comment">/// out1 = (if arg1 = 0 then arg2 else arg3)</span></span> <span class="line" id="L99"><span class="tok-comment">///</span></span> <span class="line" id="L100"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L101"><span class="tok-comment">/// arg1: [0x0 ~> 0x1]</span></span> <span class="line" id="L102"><span class="tok-comment">/// arg2: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L103"><span class="tok-comment">/// arg3: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L104"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L105"><span class="tok-comment">/// out1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L106"><span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">cmovznzU64</span>(out1: <span class="tok-type">u64</span>, arg1: <span class="tok-type">u1</span>, arg2: <span class="tok-type">u64</span>, arg3: <span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L107"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L108"></span> <span class="line" id="L109"> <span class="tok-kw">const</span> mask = <span class="tok-number">0</span> -% <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, arg1);</span> <span class="line" id="L110"> out1. = (mask & arg3) \| ((~mask) & arg2);</span> <span class="line" id="L111">}</span> <span class="line" id="L112"></span> <span class="line" id="L113"><span class="tok-comment">/// The function mul multiplies two field elements in the Montgomery domain.</span></span> <span class="line" id="L114"><span class="tok-comment">///</span></span> <span class="line" id="L115"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L116"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L117"><span class="tok-comment">/// 0 ≤ eval arg2 < m</span></span> <span class="line" id="L118"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L119"><span class="tok-comment">/// eval (from_montgomery out1) mod m = (eval (from_montgomery arg1) * eval (from_montgomery arg2)) mod m</span></span> <span class="line" id="L120"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L121"><span class="tok-comment">///</span></span> <span class="line" id="L122"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">mul</span>(out1: MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldElement, arg2: MontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L123"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L124"></span> <span class="line" id="L125"> <span class="tok-kw">const</span> x1 = (arg1[<span class="tok-number">1</span>]);</span> <span class="line" id="L126"> <span class="tok-kw">const</span> x2 = (arg1[<span class="tok-number">2</span>]);</span> <span class="line" id="L127"> <span class="tok-kw">const</span> x3 = (arg1[<span class="tok-number">3</span>]);</span> <span class="line" id="L128"> <span class="tok-kw">const</span> x4 = (arg1[<span class="tok-number">0</span>]);</span> <span class="line" id="L129"> <span class="tok-kw">var</span> x5: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L130"> <span class="tok-kw">var</span> x6: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L131"> mulxU64(&x5, &x6, x4, (arg2[<span class="tok-number">3</span>]));</span> <span class="line" id="L132"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L133"> <span class="tok-kw">var</span> x8: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L134"> mulxU64(&x7, &x8, x4, (arg2[<span class="tok-number">2</span>]));</span> <span class="line" id="L135"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L136"> <span class="tok-kw">var</span> x10: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L137"> mulxU64(&x9, &x10, x4, (arg2[<span class="tok-number">1</span>]));</span> <span class="line" id="L138"> <span class="tok-kw">var</span> x11: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L139"> <span class="tok-kw">var</span> x12: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L140"> mulxU64(&x11, &x12, x4, (arg2[<span class="tok-number">0</span>]));</span> <span class="line" id="L141"> <span class="tok-kw">var</span> x13: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L142"> <span class="tok-kw">var</span> x14: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L143"> addcarryxU64(&x13, &x14, <span class="tok-number">0x0</span>, x12, x9);</span> <span class="line" id="L144"> <span class="tok-kw">var</span> x15: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L145"> <span class="tok-kw">var</span> x16: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L146"> addcarryxU64(&x15, &x16, x14, x10, x7);</span> <span class="line" id="L147"> <span class="tok-kw">var</span> x17: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L148"> <span class="tok-kw">var</span> x18: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L149"> addcarryxU64(&x17, &x18, x16, x8, x5);</span> <span class="line" id="L150"> <span class="tok-kw">const</span> x19 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x18) + x6);</span> <span class="line" id="L151"> <span class="tok-kw">var</span> x20: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L152"> <span class="tok-kw">var</span> x21: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L153"> mulxU64(&x20, &x21, x11, <span class="tok-number">0x4b0dff665588b13f</span>);</span> <span class="line" id="L154"> <span class="tok-kw">var</span> x22: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L155"> <span class="tok-kw">var</span> x23: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L156"> mulxU64(&x22, &x23, x20, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L157"> <span class="tok-kw">var</span> x24: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L158"> <span class="tok-kw">var</span> x25: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L159"> mulxU64(&x24, &x25, x20, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L160"> <span class="tok-kw">var</span> x26: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L161"> <span class="tok-kw">var</span> x27: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L162"> mulxU64(&x26, &x27, x20, <span class="tok-number">0xbaaedce6af48a03b</span>);</span> <span class="line" id="L163"> <span class="tok-kw">var</span> x28: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L164"> <span class="tok-kw">var</span> x29: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L165"> mulxU64(&x28, &x29, x20, <span class="tok-number">0xbfd25e8cd0364141</span>);</span> <span class="line" id="L166"> <span class="tok-kw">var</span> x30: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L167"> <span class="tok-kw">var</span> x31: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L168"> addcarryxU64(&x30, &x31, <span class="tok-number">0x0</span>, x29, x26);</span> <span class="line" id="L169"> <span class="tok-kw">var</span> x32: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L170"> <span class="tok-kw">var</span> x33: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L171"> addcarryxU64(&x32, &x33, x31, x27, x24);</span> <span class="line" id="L172"> <span class="tok-kw">var</span> x34: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L173"> <span class="tok-kw">var</span> x35: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L174"> addcarryxU64(&x34, &x35, x33, x25, x22);</span> <span class="line" id="L175"> <span class="tok-kw">const</span> x36 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x35) + x23);</span> <span class="line" id="L176"> <span class="tok-kw">var</span> x37: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L177"> <span class="tok-kw">var</span> x38: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L178"> addcarryxU64(&x37, &x38, <span class="tok-number">0x0</span>, x11, x28);</span> <span class="line" id="L179"> <span class="tok-kw">var</span> x39: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L180"> <span class="tok-kw">var</span> x40: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L181"> addcarryxU64(&x39, &x40, x38, x13, x30);</span> <span class="line" id="L182"> <span class="tok-kw">var</span> x41: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L183"> <span class="tok-kw">var</span> x42: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L184"> addcarryxU64(&x41, &x42, x40, x15, x32);</span> <span class="line" id="L185"> <span class="tok-kw">var</span> x43: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L186"> <span class="tok-kw">var</span> x44: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L187"> addcarryxU64(&x43, &x44, x42, x17, x34);</span> <span class="line" id="L188"> <span class="tok-kw">var</span> x45: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L189"> <span class="tok-kw">var</span> x46: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L190"> addcarryxU64(&x45, &x46, x44, x19, x36);</span> <span class="line" id="L191"> <span class="tok-kw">var</span> x47: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L192"> <span class="tok-kw">var</span> x48: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L193"> mulxU64(&x47, &x48, x1, (arg2[<span class="tok-number">3</span>]));</span> <span class="line" id="L194"> <span class="tok-kw">var</span> x49: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L195"> <span class="tok-kw">var</span> x50: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L196"> mulxU64(&x49, &x50, x1, (arg2[<span class="tok-number">2</span>]));</span> <span class="line" id="L197"> <span class="tok-kw">var</span> x51: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L198"> <span class="tok-kw">var</span> x52: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L199"> mulxU64(&x51, &x52, x1, (arg2[<span class="tok-number">1</span>]));</span> <span class="line" id="L200"> <span class="tok-kw">var</span> x53: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L201"> <span class="tok-kw">var</span> x54: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L202"> mulxU64(&x53, &x54, x1, (arg2[<span class="tok-number">0</span>]));</span> <span class="line" id="L203"> <span class="tok-kw">var</span> x55: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L204"> <span class="tok-kw">var</span> x56: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L205"> addcarryxU64(&x55, &x56, <span class="tok-number">0x0</span>, x54, x51);</span> <span class="line" id="L206"> <span class="tok-kw">var</span> x57: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L207"> <span class="tok-kw">var</span> x58: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L208"> addcarryxU64(&x57, &x58, x56, x52, x49);</span> <span class="line" id="L209"> <span class="tok-kw">var</span> x59: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L210"> <span class="tok-kw">var</span> x60: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L211"> addcarryxU64(&x59, &x60, x58, x50, x47);</span> <span class="line" id="L212"> <span class="tok-kw">const</span> x61 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x60) + x48);</span> <span class="line" id="L213"> <span class="tok-kw">var</span> x62: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L214"> <span class="tok-kw">var</span> x63: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L215"> addcarryxU64(&x62, &x63, <span class="tok-number">0x0</span>, x39, x53);</span> <span class="line" id="L216"> <span class="tok-kw">var</span> x64: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L217"> <span class="tok-kw">var</span> x65: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L218"> addcarryxU64(&x64, &x65, x63, x41, x55);</span> <span class="line" id="L219"> <span class="tok-kw">var</span> x66: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L220"> <span class="tok-kw">var</span> x67: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L221"> addcarryxU64(&x66, &x67, x65, x43, x57);</span> <span class="line" id="L222"> <span class="tok-kw">var</span> x68: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L223"> <span class="tok-kw">var</span> x69: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L224"> addcarryxU64(&x68, &x69, x67, x45, x59);</span> <span class="line" id="L225"> <span class="tok-kw">var</span> x70: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L226"> <span class="tok-kw">var</span> x71: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L227"> addcarryxU64(&x70, &x71, x69, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x46), x61);</span> <span class="line" id="L228"> <span class="tok-kw">var</span> x72: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L229"> <span class="tok-kw">var</span> x73: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L230"> mulxU64(&x72, &x73, x62, <span class="tok-number">0x4b0dff665588b13f</span>);</span> <span class="line" id="L231"> <span class="tok-kw">var</span> x74: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L232"> <span class="tok-kw">var</span> x75: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L233"> mulxU64(&x74, &x75, x72, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L234"> <span class="tok-kw">var</span> x76: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L235"> <span class="tok-kw">var</span> x77: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L236"> mulxU64(&x76, &x77, x72, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L237"> <span class="tok-kw">var</span> x78: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L238"> <span class="tok-kw">var</span> x79: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L239"> mulxU64(&x78, &x79, x72, <span class="tok-number">0xbaaedce6af48a03b</span>);</span> <span class="line" id="L240"> <span class="tok-kw">var</span> x80: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L241"> <span class="tok-kw">var</span> x81: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L242"> mulxU64(&x80, &x81, x72, <span class="tok-number">0xbfd25e8cd0364141</span>);</span> <span class="line" id="L243"> <span class="tok-kw">var</span> x82: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L244"> <span class="tok-kw">var</span> x83: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L245"> addcarryxU64(&x82, &x83, <span class="tok-number">0x0</span>, x81, x78);</span> <span class="line" id="L246"> <span class="tok-kw">var</span> x84: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L247"> <span class="tok-kw">var</span> x85: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L248"> addcarryxU64(&x84, &x85, x83, x79, x76);</span> <span class="line" id="L249"> <span class="tok-kw">var</span> x86: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L250"> <span class="tok-kw">var</span> x87: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L251"> addcarryxU64(&x86, &x87, x85, x77, x74);</span> <span class="line" id="L252"> <span class="tok-kw">const</span> x88 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x87) + x75);</span> <span class="line" id="L253"> <span class="tok-kw">var</span> x89: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L254"> <span class="tok-kw">var</span> x90: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L255"> addcarryxU64(&x89, &x90, <span class="tok-number">0x0</span>, x62, x80);</span> <span class="line" id="L256"> <span class="tok-kw">var</span> x91: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L257"> <span class="tok-kw">var</span> x92: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L258"> addcarryxU64(&x91, &x92, x90, x64, x82);</span> <span class="line" id="L259"> <span class="tok-kw">var</span> x93: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L260"> <span class="tok-kw">var</span> x94: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L261"> addcarryxU64(&x93, &x94, x92, x66, x84);</span> <span class="line" id="L262"> <span class="tok-kw">var</span> x95: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L263"> <span class="tok-kw">var</span> x96: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L264"> addcarryxU64(&x95, &x96, x94, x68, x86);</span> <span class="line" id="L265"> <span class="tok-kw">var</span> x97: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L266"> <span class="tok-kw">var</span> x98: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L267"> addcarryxU64(&x97, &x98, x96, x70, x88);</span> <span class="line" id="L268"> <span class="tok-kw">const</span> x99 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x98) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x71));</span> <span class="line" id="L269"> <span class="tok-kw">var</span> x100: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L270"> <span class="tok-kw">var</span> x101: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L271"> mulxU64(&x100, &x101, x2, (arg2[<span class="tok-number">3</span>]));</span> <span class="line" id="L272"> <span class="tok-kw">var</span> x102: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L273"> <span class="tok-kw">var</span> x103: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L274"> mulxU64(&x102, &x103, x2, (arg2[<span class="tok-number">2</span>]));</span> <span class="line" id="L275"> <span class="tok-kw">var</span> x104: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L276"> <span class="tok-kw">var</span> x105: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L277"> mulxU64(&x104, &x105, x2, (arg2[<span class="tok-number">1</span>]));</span> <span class="line" id="L278"> <span class="tok-kw">var</span> x106: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L279"> <span class="tok-kw">var</span> x107: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L280"> mulxU64(&x106, &x107, x2, (arg2[<span class="tok-number">0</span>]));</span> <span class="line" id="L281"> <span class="tok-kw">var</span> x108: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L282"> <span class="tok-kw">var</span> x109: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L283"> addcarryxU64(&x108, &x109, <span class="tok-number">0x0</span>, x107, x104);</span> <span class="line" id="L284"> <span class="tok-kw">var</span> x110: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L285"> <span class="tok-kw">var</span> x111: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L286"> addcarryxU64(&x110, &x111, x109, x105, x102);</span> <span class="line" id="L287"> <span class="tok-kw">var</span> x112: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L288"> <span class="tok-kw">var</span> x113: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L289"> addcarryxU64(&x112, &x113, x111, x103, x100);</span> <span class="line" id="L290"> <span class="tok-kw">const</span> x114 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x113) + x101);</span> <span class="line" id="L291"> <span class="tok-kw">var</span> x115: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L292"> <span class="tok-kw">var</span> x116: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L293"> addcarryxU64(&x115, &x116, <span class="tok-number">0x0</span>, x91, x106);</span> <span class="line" id="L294"> <span class="tok-kw">var</span> x117: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L295"> <span class="tok-kw">var</span> x118: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L296"> addcarryxU64(&x117, &x118, x116, x93, x108);</span> <span class="line" id="L297"> <span class="tok-kw">var</span> x119: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L298"> <span class="tok-kw">var</span> x120: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L299"> addcarryxU64(&x119, &x120, x118, x95, x110);</span> <span class="line" id="L300"> <span class="tok-kw">var</span> x121: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L301"> <span class="tok-kw">var</span> x122: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L302"> addcarryxU64(&x121, &x122, x120, x97, x112);</span> <span class="line" id="L303"> <span class="tok-kw">var</span> x123: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L304"> <span class="tok-kw">var</span> x124: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L305"> addcarryxU64(&x123, &x124, x122, x99, x114);</span> <span class="line" id="L306"> <span class="tok-kw">var</span> x125: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L307"> <span class="tok-kw">var</span> x126: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L308"> mulxU64(&x125, &x126, x115, <span class="tok-number">0x4b0dff665588b13f</span>);</span> <span class="line" id="L309"> <span class="tok-kw">var</span> x127: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L310"> <span class="tok-kw">var</span> x128: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L311"> mulxU64(&x127, &x128, x125, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L312"> <span class="tok-kw">var</span> x129: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L313"> <span class="tok-kw">var</span> x130: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L314"> mulxU64(&x129, &x130, x125, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L315"> <span class="tok-kw">var</span> x131: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L316"> <span class="tok-kw">var</span> x132: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L317"> mulxU64(&x131, &x132, x125, <span class="tok-number">0xbaaedce6af48a03b</span>);</span> <span class="line" id="L318"> <span class="tok-kw">var</span> x133: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L319"> <span class="tok-kw">var</span> x134: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L320"> mulxU64(&x133, &x134, x125, <span class="tok-number">0xbfd25e8cd0364141</span>);</span> <span class="line" id="L321"> <span class="tok-kw">var</span> x135: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L322"> <span class="tok-kw">var</span> x136: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L323"> addcarryxU64(&x135, &x136, <span class="tok-number">0x0</span>, x134, x131);</span> <span class="line" id="L324"> <span class="tok-kw">var</span> x137: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L325"> <span class="tok-kw">var</span> x138: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L326"> addcarryxU64(&x137, &x138, x136, x132, x129);</span> <span class="line" id="L327"> <span class="tok-kw">var</span> x139: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L328"> <span class="tok-kw">var</span> x140: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L329"> addcarryxU64(&x139, &x140, x138, x130, x127);</span> <span class="line" id="L330"> <span class="tok-kw">const</span> x141 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x140) + x128);</span> <span class="line" id="L331"> <span class="tok-kw">var</span> x142: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L332"> <span class="tok-kw">var</span> x143: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L333"> addcarryxU64(&x142, &x143, <span class="tok-number">0x0</span>, x115, x133);</span> <span class="line" id="L334"> <span class="tok-kw">var</span> x144: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L335"> <span class="tok-kw">var</span> x145: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L336"> addcarryxU64(&x144, &x145, x143, x117, x135);</span> <span class="line" id="L337"> <span class="tok-kw">var</span> x146: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L338"> <span class="tok-kw">var</span> x147: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L339"> addcarryxU64(&x146, &x147, x145, x119, x137);</span> <span class="line" id="L340"> <span class="tok-kw">var</span> x148: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L341"> <span class="tok-kw">var</span> x149: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L342"> addcarryxU64(&x148, &x149, x147, x121, x139);</span> <span class="line" id="L343"> <span class="tok-kw">var</span> x150: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L344"> <span class="tok-kw">var</span> x151: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L345"> addcarryxU64(&x150, &x151, x149, x123, x141);</span> <span class="line" id="L346"> <span class="tok-kw">const</span> x152 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x151) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x124));</span> <span class="line" id="L347"> <span class="tok-kw">var</span> x153: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L348"> <span class="tok-kw">var</span> x154: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L349"> mulxU64(&x153, &x154, x3, (arg2[<span class="tok-number">3</span>]));</span> <span class="line" id="L350"> <span class="tok-kw">var</span> x155: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L351"> <span class="tok-kw">var</span> x156: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L352"> mulxU64(&x155, &x156, x3, (arg2[<span class="tok-number">2</span>]));</span> <span class="line" id="L353"> <span class="tok-kw">var</span> x157: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L354"> <span class="tok-kw">var</span> x158: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L355"> mulxU64(&x157, &x158, x3, (arg2[<span class="tok-number">1</span>]));</span> <span class="line" id="L356"> <span class="tok-kw">var</span> x159: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L357"> <span class="tok-kw">var</span> x160: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L358"> mulxU64(&x159, &x160, x3, (arg2[<span class="tok-number">0</span>]));</span> <span class="line" id="L359"> <span class="tok-kw">var</span> x161: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L360"> <span class="tok-kw">var</span> x162: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L361"> addcarryxU64(&x161, &x162, <span class="tok-number">0x0</span>, x160, x157);</span> <span class="line" id="L362"> <span class="tok-kw">var</span> x163: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L363"> <span class="tok-kw">var</span> x164: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L364"> addcarryxU64(&x163, &x164, x162, x158, x155);</span> <span class="line" id="L365"> <span class="tok-kw">var</span> x165: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L366"> <span class="tok-kw">var</span> x166: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L367"> addcarryxU64(&x165, &x166, x164, x156, x153);</span> <span class="line" id="L368"> <span class="tok-kw">const</span> x167 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x166) + x154);</span> <span class="line" id="L369"> <span class="tok-kw">var</span> x168: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L370"> <span class="tok-kw">var</span> x169: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L371"> addcarryxU64(&x168, &x169, <span class="tok-number">0x0</span>, x144, x159);</span> <span class="line" id="L372"> <span class="tok-kw">var</span> x170: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L373"> <span class="tok-kw">var</span> x171: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L374"> addcarryxU64(&x170, &x171, x169, x146, x161);</span> <span class="line" id="L375"> <span class="tok-kw">var</span> x172: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L376"> <span class="tok-kw">var</span> x173: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L377"> addcarryxU64(&x172, &x173, x171, x148, x163);</span> <span class="line" id="L378"> <span class="tok-kw">var</span> x174: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L379"> <span class="tok-kw">var</span> x175: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L380"> addcarryxU64(&x174, &x175, x173, x150, x165);</span> <span class="line" id="L381"> <span class="tok-kw">var</span> x176: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L382"> <span class="tok-kw">var</span> x177: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L383"> addcarryxU64(&x176, &x177, x175, x152, x167);</span> <span class="line" id="L384"> <span class="tok-kw">var</span> x178: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L385"> <span class="tok-kw">var</span> x179: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L386"> mulxU64(&x178, &x179, x168, <span class="tok-number">0x4b0dff665588b13f</span>);</span> <span class="line" id="L387"> <span class="tok-kw">var</span> x180: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L388"> <span class="tok-kw">var</span> x181: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L389"> mulxU64(&x180, &x181, x178, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L390"> <span class="tok-kw">var</span> x182: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L391"> <span class="tok-kw">var</span> x183: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L392"> mulxU64(&x182, &x183, x178, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L393"> <span class="tok-kw">var</span> x184: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L394"> <span class="tok-kw">var</span> x185: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L395"> mulxU64(&x184, &x185, x178, <span class="tok-number">0xbaaedce6af48a03b</span>);</span> <span class="line" id="L396"> <span class="tok-kw">var</span> x186: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L397"> <span class="tok-kw">var</span> x187: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L398"> mulxU64(&x186, &x187, x178, <span class="tok-number">0xbfd25e8cd0364141</span>);</span> <span class="line" id="L399"> <span class="tok-kw">var</span> x188: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L400"> <span class="tok-kw">var</span> x189: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L401"> addcarryxU64(&x188, &x189, <span class="tok-number">0x0</span>, x187, x184);</span> <span class="line" id="L402"> <span class="tok-kw">var</span> x190: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L403"> <span class="tok-kw">var</span> x191: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L404"> addcarryxU64(&x190, &x191, x189, x185, x182);</span> <span class="line" id="L405"> <span class="tok-kw">var</span> x192: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L406"> <span class="tok-kw">var</span> x193: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L407"> addcarryxU64(&x192, &x193, x191, x183, x180);</span> <span class="line" id="L408"> <span class="tok-kw">const</span> x194 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x193) + x181);</span> <span class="line" id="L409"> <span class="tok-kw">var</span> x195: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L410"> <span class="tok-kw">var</span> x196: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L411"> addcarryxU64(&x195, &x196, <span class="tok-number">0x0</span>, x168, x186);</span> <span class="line" id="L412"> <span class="tok-kw">var</span> x197: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L413"> <span class="tok-kw">var</span> x198: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L414"> addcarryxU64(&x197, &x198, x196, x170, x188);</span> <span class="line" id="L415"> <span class="tok-kw">var</span> x199: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L416"> <span class="tok-kw">var</span> x200: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L417"> addcarryxU64(&x199, &x200, x198, x172, x190);</span> <span class="line" id="L418"> <span class="tok-kw">var</span> x201: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L419"> <span class="tok-kw">var</span> x202: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L420"> addcarryxU64(&x201, &x202, x200, x174, x192);</span> <span class="line" id="L421"> <span class="tok-kw">var</span> x203: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L422"> <span class="tok-kw">var</span> x204: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L423"> addcarryxU64(&x203, &x204, x202, x176, x194);</span> <span class="line" id="L424"> <span class="tok-kw">const</span> x205 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x204) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x177));</span> <span class="line" id="L425"> <span class="tok-kw">var</span> x206: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L426"> <span class="tok-kw">var</span> x207: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L427"> subborrowxU64(&x206, &x207, <span class="tok-number">0x0</span>, x197, <span class="tok-number">0xbfd25e8cd0364141</span>);</span> <span class="line" id="L428"> <span class="tok-kw">var</span> x208: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L429"> <span class="tok-kw">var</span> x209: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L430"> subborrowxU64(&x208, &x209, x207, x199, <span class="tok-number">0xbaaedce6af48a03b</span>);</span> <span class="line" id="L431"> <span class="tok-kw">var</span> x210: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L432"> <span class="tok-kw">var</span> x211: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L433"> subborrowxU64(&x210, &x211, x209, x201, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L434"> <span class="tok-kw">var</span> x212: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L435"> <span class="tok-kw">var</span> x213: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L436"> subborrowxU64(&x212, &x213, x211, x203, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L437"> <span class="tok-kw">var</span> x214: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L438"> <span class="tok-kw">var</span> x215: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L439"> subborrowxU64(&x214, &x215, x213, x205, <span class="tok-number">0x0</span>);</span> <span class="line" id="L440"> <span class="tok-kw">var</span> x216: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L441"> cmovznzU64(&x216, x215, x206, x197);</span> <span class="line" id="L442"> <span class="tok-kw">var</span> x217: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L443"> cmovznzU64(&x217, x215, x208, x199);</span> <span class="line" id="L444"> <span class="tok-kw">var</span> x218: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L445"> cmovznzU64(&x218, x215, x210, x201);</span> <span class="line" id="L446"> <span class="tok-kw">var</span> x219: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L447"> cmovznzU64(&x219, x215, x212, x203);</span> <span class="line" id="L448"> out1[<span class="tok-number">0</span>] = x216;</span> <span class="line" id="L449"> out1[<span class="tok-number">1</span>] = x217;</span> <span class="line" id="L450"> out1[<span class="tok-number">2</span>] = x218;</span> <span class="line" id="L451"> out1[<span class="tok-number">3</span>] = x219;</span> <span class="line" id="L452">}</span> <span class="line" id="L453"></span> <span class="line" id="L454"><span class="tok-comment">/// The function square squares a field element in the Montgomery domain.</span></span> <span class="line" id="L455"><span class="tok-comment">///</span></span> <span class="line" id="L456"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L457"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L458"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L459"><span class="tok-comment">/// eval (from_montgomery out1) mod m = (eval (from_montgomery arg1) eval (from_montgomery arg1)) mod m</span></span> <span class="line" id="L460"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L461"><span class="tok-comment">///</span></span> <span class="line" id="L462"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">square</span>(out1: MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L463"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L464"></span> <span class="line" id="L465"> <span class="tok-kw">const</span> x1 = (arg1[<span class="tok-number">1</span>]);</span> <span class="line" id="L466"> <span class="tok-kw">const</span> x2 = (arg1[<span class="tok-number">2</span>]);</span> <span class="line" id="L467"> <span class="tok-kw">const</span> x3 = (arg1[<span class="tok-number">3</span>]);</span> <span class="line" id="L468"> <span class="tok-kw">const</span> x4 = (arg1[<span class="tok-number">0</span>]);</span> <span class="line" id="L469"> <span class="tok-kw">var</span> x5: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L470"> <span class="tok-kw">var</span> x6: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L471"> mulxU64(&x5, &x6, x4, (arg1[<span class="tok-number">3</span>]));</span> <span class="line" id="L472"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L473"> <span class="tok-kw">var</span> x8: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L474"> mulxU64(&x7, &x8, x4, (arg1[<span class="tok-number">2</span>]));</span> <span class="line" id="L475"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L476"> <span class="tok-kw">var</span> x10: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L477"> mulxU64(&x9, &x10, x4, (arg1[<span class="tok-number">1</span>]));</span> <span class="line" id="L478"> <span class="tok-kw">var</span> x11: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L479"> <span class="tok-kw">var</span> x12: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L480"> mulxU64(&x11, &x12, x4, (arg1[<span class="tok-number">0</span>]));</span> <span class="line" id="L481"> <span class="tok-kw">var</span> x13: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L482"> <span class="tok-kw">var</span> x14: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L483"> addcarryxU64(&x13, &x14, <span class="tok-number">0x0</span>, x12, x9);</span> <span class="line" id="L484"> <span class="tok-kw">var</span> x15: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L485"> <span class="tok-kw">var</span> x16: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L486"> addcarryxU64(&x15, &x16, x14, x10, x7);</span> <span class="line" id="L487"> <span class="tok-kw">var</span> x17: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L488"> <span class="tok-kw">var</span> x18: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L489"> addcarryxU64(&x17, &x18, x16, x8, x5);</span> <span class="line" id="L490"> <span class="tok-kw">const</span> x19 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x18) + x6);</span> <span class="line" id="L491"> <span class="tok-kw">var</span> x20: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L492"> <span class="tok-kw">var</span> x21: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L493"> mulxU64(&x20, &x21, x11, <span class="tok-number">0x4b0dff665588b13f</span>);</span> <span class="line" id="L494"> <span class="tok-kw">var</span> x22: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L495"> <span class="tok-kw">var</span> x23: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L496"> mulxU64(&x22, &x23, x20, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L497"> <span class="tok-kw">var</span> x24: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L498"> <span class="tok-kw">var</span> x25: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L499"> mulxU64(&x24, &x25, x20, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L500"> <span class="tok-kw">var</span> x26: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L501"> <span class="tok-kw">var</span> x27: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L502"> mulxU64(&x26, &x27, x20, <span class="tok-number">0xbaaedce6af48a03b</span>);</span> <span class="line" id="L503"> <span class="tok-kw">var</span> x28: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L504"> <span class="tok-kw">var</span> x29: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L505"> mulxU64(&x28, &x29, x20, <span class="tok-number">0xbfd25e8cd0364141</span>);</span> <span class="line" id="L506"> <span class="tok-kw">var</span> x30: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L507"> <span class="tok-kw">var</span> x31: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L508"> addcarryxU64(&x30, &x31, <span class="tok-number">0x0</span>, x29, x26);</span> <span class="line" id="L509"> <span class="tok-kw">var</span> x32: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L510"> <span class="tok-kw">var</span> x33: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L511"> addcarryxU64(&x32, &x33, x31, x27, x24);</span> <span class="line" id="L512"> <span class="tok-kw">var</span> x34: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L513"> <span class="tok-kw">var</span> x35: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L514"> addcarryxU64(&x34, &x35, x33, x25, x22);</span> <span class="line" id="L515"> <span class="tok-kw">const</span> x36 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x35) + x23);</span> <span class="line" id="L516"> <span class="tok-kw">var</span> x37: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L517"> <span class="tok-kw">var</span> x38: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L518"> addcarryxU64(&x37, &x38, <span class="tok-number">0x0</span>, x11, x28);</span> <span class="line" id="L519"> <span class="tok-kw">var</span> x39: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L520"> <span class="tok-kw">var</span> x40: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L521"> addcarryxU64(&x39, &x40, x38, x13, x30);</span> <span class="line" id="L522"> <span class="tok-kw">var</span> x41: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L523"> <span class="tok-kw">var</span> x42: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L524"> addcarryxU64(&x41, &x42, x40, x15, x32);</span> <span class="line" id="L525"> <span class="tok-kw">var</span> x43: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L526"> <span class="tok-kw">var</span> x44: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L527"> addcarryxU64(&x43, &x44, x42, x17, x34);</span> <span class="line" id="L528"> <span class="tok-kw">var</span> x45: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L529"> <span class="tok-kw">var</span> x46: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L530"> addcarryxU64(&x45, &x46, x44, x19, x36);</span> <span class="line" id="L531"> <span class="tok-kw">var</span> x47: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L532"> <span class="tok-kw">var</span> x48: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L533"> mulxU64(&x47, &x48, x1, (arg1[<span class="tok-number">3</span>]));</span> <span class="line" id="L534"> <span class="tok-kw">var</span> x49: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L535"> <span class="tok-kw">var</span> x50: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L536"> mulxU64(&x49, &x50, x1, (arg1[<span class="tok-number">2</span>]));</span> <span class="line" id="L537"> <span class="tok-kw">var</span> x51: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L538"> <span class="tok-kw">var</span> x52: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L539"> mulxU64(&x51, &x52, x1, (arg1[<span class="tok-number">1</span>]));</span> <span class="line" id="L540"> <span class="tok-kw">var</span> x53: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L541"> <span class="tok-kw">var</span> x54: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L542"> mulxU64(&x53, &x54, x1, (arg1[<span class="tok-number">0</span>]));</span> <span class="line" id="L543"> <span class="tok-kw">var</span> x55: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L544"> <span class="tok-kw">var</span> x56: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L545"> addcarryxU64(&x55, &x56, <span class="tok-number">0x0</span>, x54, x51);</span> <span class="line" id="L546"> <span class="tok-kw">var</span> x57: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L547"> <span class="tok-kw">var</span> x58: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L548"> addcarryxU64(&x57, &x58, x56, x52, x49);</span> <span class="line" id="L549"> <span class="tok-kw">var</span> x59: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L550"> <span class="tok-kw">var</span> x60: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L551"> addcarryxU64(&x59, &x60, x58, x50, x47);</span> <span class="line" id="L552"> <span class="tok-kw">const</span> x61 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x60) + x48);</span> <span class="line" id="L553"> <span class="tok-kw">var</span> x62: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L554"> <span class="tok-kw">var</span> x63: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L555"> addcarryxU64(&x62, &x63, <span class="tok-number">0x0</span>, x39, x53);</span> <span class="line" id="L556"> <span class="tok-kw">var</span> x64: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L557"> <span class="tok-kw">var</span> x65: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L558"> addcarryxU64(&x64, &x65, x63, x41, x55);</span> <span class="line" id="L559"> <span class="tok-kw">var</span> x66: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L560"> <span class="tok-kw">var</span> x67: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L561"> addcarryxU64(&x66, &x67, x65, x43, x57);</span> <span class="line" id="L562"> <span class="tok-kw">var</span> x68: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L563"> <span class="tok-kw">var</span> x69: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L564"> addcarryxU64(&x68, &x69, x67, x45, x59);</span> <span class="line" id="L565"> <span class="tok-kw">var</span> x70: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L566"> <span class="tok-kw">var</span> x71: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L567"> addcarryxU64(&x70, &x71, x69, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x46), x61);</span> <span class="line" id="L568"> <span class="tok-kw">var</span> x72: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L569"> <span class="tok-kw">var</span> x73: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L570"> mulxU64(&x72, &x73, x62, <span class="tok-number">0x4b0dff665588b13f</span>);</span> <span class="line" id="L571"> <span class="tok-kw">var</span> x74: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L572"> <span class="tok-kw">var</span> x75: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L573"> mulxU64(&x74, &x75, x72, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L574"> <span class="tok-kw">var</span> x76: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L575"> <span class="tok-kw">var</span> x77: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L576"> mulxU64(&x76, &x77, x72, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L577"> <span class="tok-kw">var</span> x78: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L578"> <span class="tok-kw">var</span> x79: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L579"> mulxU64(&x78, &x79, x72, <span class="tok-number">0xbaaedce6af48a03b</span>);</span> <span class="line" id="L580"> <span class="tok-kw">var</span> x80: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L581"> <span class="tok-kw">var</span> x81: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L582"> mulxU64(&x80, &x81, x72, <span class="tok-number">0xbfd25e8cd0364141</span>);</span> <span class="line" id="L583"> <span class="tok-kw">var</span> x82: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L584"> <span class="tok-kw">var</span> x83: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L585"> addcarryxU64(&x82, &x83, <span class="tok-number">0x0</span>, x81, x78);</span> <span class="line" id="L586"> <span class="tok-kw">var</span> x84: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L587"> <span class="tok-kw">var</span> x85: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L588"> addcarryxU64(&x84, &x85, x83, x79, x76);</span> <span class="line" id="L589"> <span class="tok-kw">var</span> x86: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L590"> <span class="tok-kw">var</span> x87: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L591"> addcarryxU64(&x86, &x87, x85, x77, x74);</span> <span class="line" id="L592"> <span class="tok-kw">const</span> x88 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x87) + x75);</span> <span class="line" id="L593"> <span class="tok-kw">var</span> x89: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L594"> <span class="tok-kw">var</span> x90: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L595"> addcarryxU64(&x89, &x90, <span class="tok-number">0x0</span>, x62, x80);</span> <span class="line" id="L596"> <span class="tok-kw">var</span> x91: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L597"> <span class="tok-kw">var</span> x92: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L598"> addcarryxU64(&x91, &x92, x90, x64, x82);</span> <span class="line" id="L599"> <span class="tok-kw">var</span> x93: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L600"> <span class="tok-kw">var</span> x94: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L601"> addcarryxU64(&x93, &x94, x92, x66, x84);</span> <span class="line" id="L602"> <span class="tok-kw">var</span> x95: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L603"> <span class="tok-kw">var</span> x96: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L604"> addcarryxU64(&x95, &x96, x94, x68, x86);</span> <span class="line" id="L605"> <span class="tok-kw">var</span> x97: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L606"> <span class="tok-kw">var</span> x98: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L607"> addcarryxU64(&x97, &x98, x96, x70, x88);</span> <span class="line" id="L608"> <span class="tok-kw">const</span> x99 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x98) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x71));</span> <span class="line" id="L609"> <span class="tok-kw">var</span> x100: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L610"> <span class="tok-kw">var</span> x101: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L611"> mulxU64(&x100, &x101, x2, (arg1[<span class="tok-number">3</span>]));</span> <span class="line" id="L612"> <span class="tok-kw">var</span> x102: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L613"> <span class="tok-kw">var</span> x103: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L614"> mulxU64(&x102, &x103, x2, (arg1[<span class="tok-number">2</span>]));</span> <span class="line" id="L615"> <span class="tok-kw">var</span> x104: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L616"> <span class="tok-kw">var</span> x105: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L617"> mulxU64(&x104, &x105, x2, (arg1[<span class="tok-number">1</span>]));</span> <span class="line" id="L618"> <span class="tok-kw">var</span> x106: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L619"> <span class="tok-kw">var</span> x107: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L620"> mulxU64(&x106, &x107, x2, (arg1[<span class="tok-number">0</span>]));</span> <span class="line" id="L621"> <span class="tok-kw">var</span> x108: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L622"> <span class="tok-kw">var</span> x109: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L623"> addcarryxU64(&x108, &x109, <span class="tok-number">0x0</span>, x107, x104);</span> <span class="line" id="L624"> <span class="tok-kw">var</span> x110: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L625"> <span class="tok-kw">var</span> x111: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L626"> addcarryxU64(&x110, &x111, x109, x105, x102);</span> <span class="line" id="L627"> <span class="tok-kw">var</span> x112: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L628"> <span class="tok-kw">var</span> x113: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L629"> addcarryxU64(&x112, &x113, x111, x103, x100);</span> <span class="line" id="L630"> <span class="tok-kw">const</span> x114 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x113) + x101);</span> <span class="line" id="L631"> <span class="tok-kw">var</span> x115: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L632"> <span class="tok-kw">var</span> x116: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L633"> addcarryxU64(&x115, &x116, <span class="tok-number">0x0</span>, x91, x106);</span> <span class="line" id="L634"> <span class="tok-kw">var</span> x117: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L635"> <span class="tok-kw">var</span> x118: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L636"> addcarryxU64(&x117, &x118, x116, x93, x108);</span> <span class="line" id="L637"> <span class="tok-kw">var</span> x119: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L638"> <span class="tok-kw">var</span> x120: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L639"> addcarryxU64(&x119, &x120, x118, x95, x110);</span> <span class="line" id="L640"> <span class="tok-kw">var</span> x121: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L641"> <span class="tok-kw">var</span> x122: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L642"> addcarryxU64(&x121, &x122, x120, x97, x112);</span> <span class="line" id="L643"> <span class="tok-kw">var</span> x123: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L644"> <span class="tok-kw">var</span> x124: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L645"> addcarryxU64(&x123, &x124, x122, x99, x114);</span> <span class="line" id="L646"> <span class="tok-kw">var</span> x125: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L647"> <span class="tok-kw">var</span> x126: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L648"> mulxU64(&x125, &x126, x115, <span class="tok-number">0x4b0dff665588b13f</span>);</span> <span class="line" id="L649"> <span class="tok-kw">var</span> x127: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L650"> <span class="tok-kw">var</span> x128: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L651"> mulxU64(&x127, &x128, x125, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L652"> <span class="tok-kw">var</span> x129: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L653"> <span class="tok-kw">var</span> x130: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L654"> mulxU64(&x129, &x130, x125, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L655"> <span class="tok-kw">var</span> x131: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L656"> <span class="tok-kw">var</span> x132: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L657"> mulxU64(&x131, &x132, x125, <span class="tok-number">0xbaaedce6af48a03b</span>);</span> <span class="line" id="L658"> <span class="tok-kw">var</span> x133: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L659"> <span class="tok-kw">var</span> x134: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L660"> mulxU64(&x133, &x134, x125, <span class="tok-number">0xbfd25e8cd0364141</span>);</span> <span class="line" id="L661"> <span class="tok-kw">var</span> x135: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L662"> <span class="tok-kw">var</span> x136: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L663"> addcarryxU64(&x135, &x136, <span class="tok-number">0x0</span>, x134, x131);</span> <span class="line" id="L664"> <span class="tok-kw">var</span> x137: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L665"> <span class="tok-kw">var</span> x138: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L666"> addcarryxU64(&x137, &x138, x136, x132, x129);</span> <span class="line" id="L667"> <span class="tok-kw">var</span> x139: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L668"> <span class="tok-kw">var</span> x140: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L669"> addcarryxU64(&x139, &x140, x138, x130, x127);</span> <span class="line" id="L670"> <span class="tok-kw">const</span> x141 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x140) + x128);</span> <span class="line" id="L671"> <span class="tok-kw">var</span> x142: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L672"> <span class="tok-kw">var</span> x143: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L673"> addcarryxU64(&x142, &x143, <span class="tok-number">0x0</span>, x115, x133);</span> <span class="line" id="L674"> <span class="tok-kw">var</span> x144: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L675"> <span class="tok-kw">var</span> x145: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L676"> addcarryxU64(&x144, &x145, x143, x117, x135);</span> <span class="line" id="L677"> <span class="tok-kw">var</span> x146: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L678"> <span class="tok-kw">var</span> x147: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L679"> addcarryxU64(&x146, &x147, x145, x119, x137);</span> <span class="line" id="L680"> <span class="tok-kw">var</span> x148: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L681"> <span class="tok-kw">var</span> x149: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L682"> addcarryxU64(&x148, &x149, x147, x121, x139);</span> <span class="line" id="L683"> <span class="tok-kw">var</span> x150: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L684"> <span class="tok-kw">var</span> x151: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L685"> addcarryxU64(&x150, &x151, x149, x123, x141);</span> <span class="line" id="L686"> <span class="tok-kw">const</span> x152 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x151) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x124));</span> <span class="line" id="L687"> <span class="tok-kw">var</span> x153: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L688"> <span class="tok-kw">var</span> x154: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L689"> mulxU64(&x153, &x154, x3, (arg1[<span class="tok-number">3</span>]));</span> <span class="line" id="L690"> <span class="tok-kw">var</span> x155: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L691"> <span class="tok-kw">var</span> x156: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L692"> mulxU64(&x155, &x156, x3, (arg1[<span class="tok-number">2</span>]));</span> <span class="line" id="L693"> <span class="tok-kw">var</span> x157: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L694"> <span class="tok-kw">var</span> x158: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L695"> mulxU64(&x157, &x158, x3, (arg1[<span class="tok-number">1</span>]));</span> <span class="line" id="L696"> <span class="tok-kw">var</span> x159: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L697"> <span class="tok-kw">var</span> x160: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L698"> mulxU64(&x159, &x160, x3, (arg1[<span class="tok-number">0</span>]));</span> <span class="line" id="L699"> <span class="tok-kw">var</span> x161: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L700"> <span class="tok-kw">var</span> x162: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L701"> addcarryxU64(&x161, &x162, <span class="tok-number">0x0</span>, x160, x157);</span> <span class="line" id="L702"> <span class="tok-kw">var</span> x163: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L703"> <span class="tok-kw">var</span> x164: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L704"> addcarryxU64(&x163, &x164, x162, x158, x155);</span> <span class="line" id="L705"> <span class="tok-kw">var</span> x165: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L706"> <span class="tok-kw">var</span> x166: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L707"> addcarryxU64(&x165, &x166, x164, x156, x153);</span> <span class="line" id="L708"> <span class="tok-kw">const</span> x167 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x166) + x154);</span> <span class="line" id="L709"> <span class="tok-kw">var</span> x168: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L710"> <span class="tok-kw">var</span> x169: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L711"> addcarryxU64(&x168, &x169, <span class="tok-number">0x0</span>, x144, x159);</span> <span class="line" id="L712"> <span class="tok-kw">var</span> x170: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L713"> <span class="tok-kw">var</span> x171: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L714"> addcarryxU64(&x170, &x171, x169, x146, x161);</span> <span class="line" id="L715"> <span class="tok-kw">var</span> x172: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L716"> <span class="tok-kw">var</span> x173: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L717"> addcarryxU64(&x172, &x173, x171, x148, x163);</span> <span class="line" id="L718"> <span class="tok-kw">var</span> x174: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L719"> <span class="tok-kw">var</span> x175: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L720"> addcarryxU64(&x174, &x175, x173, x150, x165);</span> <span class="line" id="L721"> <span class="tok-kw">var</span> x176: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L722"> <span class="tok-kw">var</span> x177: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L723"> addcarryxU64(&x176, &x177, x175, x152, x167);</span> <span class="line" id="L724"> <span class="tok-kw">var</span> x178: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L725"> <span class="tok-kw">var</span> x179: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L726"> mulxU64(&x178, &x179, x168, <span class="tok-number">0x4b0dff665588b13f</span>);</span> <span class="line" id="L727"> <span class="tok-kw">var</span> x180: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L728"> <span class="tok-kw">var</span> x181: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L729"> mulxU64(&x180, &x181, x178, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L730"> <span class="tok-kw">var</span> x182: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L731"> <span class="tok-kw">var</span> x183: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L732"> mulxU64(&x182, &x183, x178, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L733"> <span class="tok-kw">var</span> x184: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L734"> <span class="tok-kw">var</span> x185: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L735"> mulxU64(&x184, &x185, x178, <span class="tok-number">0xbaaedce6af48a03b</span>);</span> <span class="line" id="L736"> <span class="tok-kw">var</span> x186: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L737"> <span class="tok-kw">var</span> x187: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L738"> mulxU64(&x186, &x187, x178, <span class="tok-number">0xbfd25e8cd0364141</span>);</span> <span class="line" id="L739"> <span class="tok-kw">var</span> x188: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L740"> <span class="tok-kw">var</span> x189: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L741"> addcarryxU64(&x188, &x189, <span class="tok-number">0x0</span>, x187, x184);</span> <span class="line" id="L742"> <span class="tok-kw">var</span> x190: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L743"> <span class="tok-kw">var</span> x191: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L744"> addcarryxU64(&x190, &x191, x189, x185, x182);</span> <span class="line" id="L745"> <span class="tok-kw">var</span> x192: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L746"> <span class="tok-kw">var</span> x193: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L747"> addcarryxU64(&x192, &x193, x191, x183, x180);</span> <span class="line" id="L748"> <span class="tok-kw">const</span> x194 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x193) + x181);</span> <span class="line" id="L749"> <span class="tok-kw">var</span> x195: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L750"> <span class="tok-kw">var</span> x196: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L751"> addcarryxU64(&x195, &x196, <span class="tok-number">0x0</span>, x168, x186);</span> <span class="line" id="L752"> <span class="tok-kw">var</span> x197: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L753"> <span class="tok-kw">var</span> x198: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L754"> addcarryxU64(&x197, &x198, x196, x170, x188);</span> <span class="line" id="L755"> <span class="tok-kw">var</span> x199: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L756"> <span class="tok-kw">var</span> x200: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L757"> addcarryxU64(&x199, &x200, x198, x172, x190);</span> <span class="line" id="L758"> <span class="tok-kw">var</span> x201: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L759"> <span class="tok-kw">var</span> x202: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L760"> addcarryxU64(&x201, &x202, x200, x174, x192);</span> <span class="line" id="L761"> <span class="tok-kw">var</span> x203: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L762"> <span class="tok-kw">var</span> x204: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L763"> addcarryxU64(&x203, &x204, x202, x176, x194);</span> <span class="line" id="L764"> <span class="tok-kw">const</span> x205 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x204) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x177));</span> <span class="line" id="L765"> <span class="tok-kw">var</span> x206: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L766"> <span class="tok-kw">var</span> x207: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L767"> subborrowxU64(&x206, &x207, <span class="tok-number">0x0</span>, x197, <span class="tok-number">0xbfd25e8cd0364141</span>);</span> <span class="line" id="L768"> <span class="tok-kw">var</span> x208: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L769"> <span class="tok-kw">var</span> x209: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L770"> subborrowxU64(&x208, &x209, x207, x199, <span class="tok-number">0xbaaedce6af48a03b</span>);</span> <span class="line" id="L771"> <span class="tok-kw">var</span> x210: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L772"> <span class="tok-kw">var</span> x211: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L773"> subborrowxU64(&x210, &x211, x209, x201, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L774"> <span class="tok-kw">var</span> x212: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L775"> <span class="tok-kw">var</span> x213: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L776"> subborrowxU64(&x212, &x213, x211, x203, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L777"> <span class="tok-kw">var</span> x214: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L778"> <span class="tok-kw">var</span> x215: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L779"> subborrowxU64(&x214, &x215, x213, x205, <span class="tok-number">0x0</span>);</span> <span class="line" id="L780"> <span class="tok-kw">var</span> x216: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L781"> cmovznzU64(&x216, x215, x206, x197);</span> <span class="line" id="L782"> <span class="tok-kw">var</span> x217: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L783"> cmovznzU64(&x217, x215, x208, x199);</span> <span class="line" id="L784"> <span class="tok-kw">var</span> x218: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L785"> cmovznzU64(&x218, x215, x210, x201);</span> <span class="line" id="L786"> <span class="tok-kw">var</span> x219: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L787"> cmovznzU64(&x219, x215, x212, x203);</span> <span class="line" id="L788"> out1[<span class="tok-number">0</span>] = x216;</span> <span class="line" id="L789"> out1[<span class="tok-number">1</span>] = x217;</span> <span class="line" id="L790"> out1[<span class="tok-number">2</span>] = x218;</span> <span class="line" id="L791"> out1[<span class="tok-number">3</span>] = x219;</span> <span class="line" id="L792">}</span> <span class="line" id="L793"></span> <span class="line" id="L794"><span class="tok-comment">/// The function add adds two field elements in the Montgomery domain.</span></span> <span class="line" id="L795"><span class="tok-comment">///</span></span> <span class="line" id="L796"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L797"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L798"><span class="tok-comment">/// 0 ≤ eval arg2 < m</span></span> <span class="line" id="L799"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L800"><span class="tok-comment">/// eval (from_montgomery out1) mod m = (eval (from_montgomery arg1) + eval (from_montgomery arg2)) mod m</span></span> <span class="line" id="L801"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L802"><span class="tok-comment">///</span></span> <span class="line" id="L803"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">add</span>(out1: MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldElement, arg2: MontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L804"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L805"></span> <span class="line" id="L806"> <span class="tok-kw">var</span> x1: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L807"> <span class="tok-kw">var</span> x2: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L808"> addcarryxU64(&x1, &x2, <span class="tok-number">0x0</span>, (arg1[<span class="tok-number">0</span>]), (arg2[<span class="tok-number">0</span>]));</span> <span class="line" id="L809"> <span class="tok-kw">var</span> x3: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L810"> <span class="tok-kw">var</span> x4: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L811"> addcarryxU64(&x3, &x4, x2, (arg1[<span class="tok-number">1</span>]), (arg2[<span class="tok-number">1</span>]));</span> <span class="line" id="L812"> <span class="tok-kw">var</span> x5: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L813"> <span class="tok-kw">var</span> x6: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L814"> addcarryxU64(&x5, &x6, x4, (arg1[<span class="tok-number">2</span>]), (arg2[<span class="tok-number">2</span>]));</span> <span class="line" id="L815"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L816"> <span class="tok-kw">var</span> x8: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L817"> addcarryxU64(&x7, &x8, x6, (arg1[<span class="tok-number">3</span>]), (arg2[<span class="tok-number">3</span>]));</span> <span class="line" id="L818"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L819"> <span class="tok-kw">var</span> x10: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L820"> subborrowxU64(&x9, &x10, <span class="tok-number">0x0</span>, x1, <span class="tok-number">0xbfd25e8cd0364141</span>);</span> <span class="line" id="L821"> <span class="tok-kw">var</span> x11: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L822"> <span class="tok-kw">var</span> x12: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L823"> subborrowxU64(&x11, &x12, x10, x3, <span class="tok-number">0xbaaedce6af48a03b</span>);</span> <span class="line" id="L824"> <span class="tok-kw">var</span> x13: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L825"> <span class="tok-kw">var</span> x14: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L826"> subborrowxU64(&x13, &x14, x12, x5, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L827"> <span class="tok-kw">var</span> x15: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L828"> <span class="tok-kw">var</span> x16: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L829"> subborrowxU64(&x15, &x16, x14, x7, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L830"> <span class="tok-kw">var</span> x17: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L831"> <span class="tok-kw">var</span> x18: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L832"> subborrowxU64(&x17, &x18, x16, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x8), <span class="tok-number">0x0</span>);</span> <span class="line" id="L833"> <span class="tok-kw">var</span> x19: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L834"> cmovznzU64(&x19, x18, x9, x1);</span> <span class="line" id="L835"> <span class="tok-kw">var</span> x20: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L836"> cmovznzU64(&x20, x18, x11, x3);</span> <span class="line" id="L837"> <span class="tok-kw">var</span> x21: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L838"> cmovznzU64(&x21, x18, x13, x5);</span> <span class="line" id="L839"> <span class="tok-kw">var</span> x22: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L840"> cmovznzU64(&x22, x18, x15, x7);</span> <span class="line" id="L841"> out1[<span class="tok-number">0</span>] = x19;</span> <span class="line" id="L842"> out1[<span class="tok-number">1</span>] = x20;</span> <span class="line" id="L843"> out1[<span class="tok-number">2</span>] = x21;</span> <span class="line" id="L844"> out1[<span class="tok-number">3</span>] = x22;</span> <span class="line" id="L845">}</span> <span class="line" id="L846"></span> <span class="line" id="L847"><span class="tok-comment">/// The function sub subtracts two field elements in the Montgomery domain.</span></span> <span class="line" id="L848"><span class="tok-comment">///</span></span> <span class="line" id="L849"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L850"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L851"><span class="tok-comment">/// 0 ≤ eval arg2 < m</span></span> <span class="line" id="L852"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L853"><span class="tok-comment">/// eval (from_montgomery out1) mod m = (eval (from_montgomery arg1) - eval (from_montgomery arg2)) mod m</span></span> <span class="line" id="L854"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L855"><span class="tok-comment">///</span></span> <span class="line" id="L856"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">sub</span>(out1: MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldElement, arg2: MontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L857"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L858"></span> <span class="line" id="L859"> <span class="tok-kw">var</span> x1: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L860"> <span class="tok-kw">var</span> x2: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L861"> subborrowxU64(&x1, &x2, <span class="tok-number">0x0</span>, (arg1[<span class="tok-number">0</span>]), (arg2[<span class="tok-number">0</span>]));</span> <span class="line" id="L862"> <span class="tok-kw">var</span> x3: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L863"> <span class="tok-kw">var</span> x4: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L864"> subborrowxU64(&x3, &x4, x2, (arg1[<span class="tok-number">1</span>]), (arg2[<span class="tok-number">1</span>]));</span> <span class="line" id="L865"> <span class="tok-kw">var</span> x5: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L866"> <span class="tok-kw">var</span> x6: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L867"> subborrowxU64(&x5, &x6, x4, (arg1[<span class="tok-number">2</span>]), (arg2[<span class="tok-number">2</span>]));</span> <span class="line" id="L868"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L869"> <span class="tok-kw">var</span> x8: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L870"> subborrowxU64(&x7, &x8, x6, (arg1[<span class="tok-number">3</span>]), (arg2[<span class="tok-number">3</span>]));</span> <span class="line" id="L871"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L872"> cmovznzU64(&x9, x8, <span class="tok-number">0x0</span>, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L873"> <span class="tok-kw">var</span> x10: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L874"> <span class="tok-kw">var</span> x11: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L875"> addcarryxU64(&x10, &x11, <span class="tok-number">0x0</span>, x1, (x9 & <span class="tok-number">0xbfd25e8cd0364141</span>));</span> <span class="line" id="L876"> <span class="tok-kw">var</span> x12: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L877"> <span class="tok-kw">var</span> x13: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L878"> addcarryxU64(&x12, &x13, x11, x3, (x9 & <span class="tok-number">0xbaaedce6af48a03b</span>));</span> <span class="line" id="L879"> <span class="tok-kw">var</span> x14: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L880"> <span class="tok-kw">var</span> x15: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L881"> addcarryxU64(&x14, &x15, x13, x5, (x9 & <span class="tok-number">0xfffffffffffffffe</span>));</span> <span class="line" id="L882"> <span class="tok-kw">var</span> x16: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L883"> <span class="tok-kw">var</span> x17: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L884"> addcarryxU64(&x16, &x17, x15, x7, x9);</span> <span class="line" id="L885"> out1[<span class="tok-number">0</span>] = x10;</span> <span class="line" id="L886"> out1[<span class="tok-number">1</span>] = x12;</span> <span class="line" id="L887"> out1[<span class="tok-number">2</span>] = x14;</span> <span class="line" id="L888"> out1[<span class="tok-number">3</span>] = x16;</span> <span class="line" id="L889">}</span> <span class="line" id="L890"></span> <span class="line" id="L891"><span class="tok-comment">/// The function opp negates a field element in the Montgomery domain.</span></span> <span class="line" id="L892"><span class="tok-comment">///</span></span> <span class="line" id="L893"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L894"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L895"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L896"><span class="tok-comment">/// eval (from_montgomery out1) mod m = -eval (from_montgomery arg1) mod m</span></span> <span class="line" id="L897"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L898"><span class="tok-comment">///</span></span> <span class="line" id="L899"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">opp</span>(out1: MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L900"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L901"></span> <span class="line" id="L902"> <span class="tok-kw">var</span> x1: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L903"> <span class="tok-kw">var</span> x2: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L904"> subborrowxU64(&x1, &x2, <span class="tok-number">0x0</span>, <span class="tok-number">0x0</span>, (arg1[<span class="tok-number">0</span>]));</span> <span class="line" id="L905"> <span class="tok-kw">var</span> x3: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L906"> <span class="tok-kw">var</span> x4: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L907"> subborrowxU64(&x3, &x4, x2, <span class="tok-number">0x0</span>, (arg1[<span class="tok-number">1</span>]));</span> <span class="line" id="L908"> <span class="tok-kw">var</span> x5: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L909"> <span class="tok-kw">var</span> x6: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L910"> subborrowxU64(&x5, &x6, x4, <span class="tok-number">0x0</span>, (arg1[<span class="tok-number">2</span>]));</span> <span class="line" id="L911"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L912"> <span class="tok-kw">var</span> x8: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L913"> subborrowxU64(&x7, &x8, x6, <span class="tok-number">0x0</span>, (arg1[<span class="tok-number">3</span>]));</span> <span class="line" id="L914"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L915"> cmovznzU64(&x9, x8, <span class="tok-number">0x0</span>, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L916"> <span class="tok-kw">var</span> x10: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L917"> <span class="tok-kw">var</span> x11: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L918"> addcarryxU64(&x10, &x11, <span class="tok-number">0x0</span>, x1, (x9 & <span class="tok-number">0xbfd25e8cd0364141</span>));</span> <span class="line" id="L919"> <span class="tok-kw">var</span> x12: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L920"> <span class="tok-kw">var</span> x13: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L921"> addcarryxU64(&x12, &x13, x11, x3, (x9 & <span class="tok-number">0xbaaedce6af48a03b</span>));</span> <span class="line" id="L922"> <span class="tok-kw">var</span> x14: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L923"> <span class="tok-kw">var</span> x15: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L924"> addcarryxU64(&x14, &x15, x13, x5, (x9 & <span class="tok-number">0xfffffffffffffffe</span>));</span> <span class="line" id="L925"> <span class="tok-kw">var</span> x16: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L926"> <span class="tok-kw">var</span> x17: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L927"> addcarryxU64(&x16, &x17, x15, x7, x9);</span> <span class="line" id="L928"> out1[<span class="tok-number">0</span>] = x10;</span> <span class="line" id="L929"> out1[<span class="tok-number">1</span>] = x12;</span> <span class="line" id="L930"> out1[<span class="tok-number">2</span>] = x14;</span> <span class="line" id="L931"> out1[<span class="tok-number">3</span>] = x16;</span> <span class="line" id="L932">}</span> <span class="line" id="L933"></span> <span class="line" id="L934"><span class="tok-comment">/// The function fromMontgomery translates a field element out of the Montgomery domain.</span></span> <span class="line" id="L935"><span class="tok-comment">///</span></span> <span class="line" id="L936"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L937"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L938"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L939"><span class="tok-comment">/// eval out1 mod m = (eval arg1 * ((2^64)⁻¹ mod m)^4) mod m</span></span> <span class="line" id="L940"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L941"><span class="tok-comment">///</span></span> <span class="line" id="L942"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromMontgomery</span>(out1: NonMontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L943"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L944"></span> <span class="line" id="L945"> <span class="tok-kw">const</span> x1 = (arg1[<span class="tok-number">0</span>]);</span> <span class="line" id="L946"> <span class="tok-kw">var</span> x2: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L947"> <span class="tok-kw">var</span> x3: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L948"> mulxU64(&x2, &x3, x1, <span class="tok-number">0x4b0dff665588b13f</span>);</span> <span class="line" id="L949"> <span class="tok-kw">var</span> x4: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L950"> <span class="tok-kw">var</span> x5: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L951"> mulxU64(&x4, &x5, x2, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L952"> <span class="tok-kw">var</span> x6: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L953"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L954"> mulxU64(&x6, &x7, x2, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L955"> <span class="tok-kw">var</span> x8: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L956"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L957"> mulxU64(&x8, &x9, x2, <span class="tok-number">0xbaaedce6af48a03b</span>);</span> <span class="line" id="L958"> <span class="tok-kw">var</span> x10: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L959"> <span class="tok-kw">var</span> x11: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L960"> mulxU64(&x10, &x11, x2, <span class="tok-number">0xbfd25e8cd0364141</span>);</span> <span class="line" id="L961"> <span class="tok-kw">var</span> x12: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L962"> <span class="tok-kw">var</span> x13: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L963"> addcarryxU64(&x12, &x13, <span class="tok-number">0x0</span>, x11, x8);</span> <span class="line" id="L964"> <span class="tok-kw">var</span> x14: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L965"> <span class="tok-kw">var</span> x15: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L966"> addcarryxU64(&x14, &x15, x13, x9, x6);</span> <span class="line" id="L967"> <span class="tok-kw">var</span> x16: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L968"> <span class="tok-kw">var</span> x17: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L969"> addcarryxU64(&x16, &x17, x15, x7, x4);</span> <span class="line" id="L970"> <span class="tok-kw">var</span> x18: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L971"> <span class="tok-kw">var</span> x19: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L972"> addcarryxU64(&x18, &x19, <span class="tok-number">0x0</span>, x1, x10);</span> <span class="line" id="L973"> <span class="tok-kw">var</span> x20: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L974"> <span class="tok-kw">var</span> x21: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L975"> addcarryxU64(&x20, &x21, x19, <span class="tok-number">0x0</span>, x12);</span> <span class="line" id="L976"> <span class="tok-kw">var</span> x22: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L977"> <span class="tok-kw">var</span> x23: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L978"> addcarryxU64(&x22, &x23, x21, <span class="tok-number">0x0</span>, x14);</span> <span class="line" id="L979"> <span class="tok-kw">var</span> x24: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L980"> <span class="tok-kw">var</span> x25: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L981"> addcarryxU64(&x24, &x25, x23, <span class="tok-number">0x0</span>, x16);</span> <span class="line" id="L982"> <span class="tok-kw">var</span> x26: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L983"> <span class="tok-kw">var</span> x27: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L984"> addcarryxU64(&x26, &x27, x25, <span class="tok-number">0x0</span>, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x17) + x5));</span> <span class="line" id="L985"> <span class="tok-kw">var</span> x28: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L986"> <span class="tok-kw">var</span> x29: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L987"> addcarryxU64(&x28, &x29, <span class="tok-number">0x0</span>, x20, (arg1[<span class="tok-number">1</span>]));</span> <span class="line" id="L988"> <span class="tok-kw">var</span> x30: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L989"> <span class="tok-kw">var</span> x31: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L990"> addcarryxU64(&x30, &x31, x29, x22, <span class="tok-number">0x0</span>);</span> <span class="line" id="L991"> <span class="tok-kw">var</span> x32: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L992"> <span class="tok-kw">var</span> x33: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L993"> addcarryxU64(&x32, &x33, x31, x24, <span class="tok-number">0x0</span>);</span> <span class="line" id="L994"> <span class="tok-kw">var</span> x34: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L995"> <span class="tok-kw">var</span> x35: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L996"> addcarryxU64(&x34, &x35, x33, x26, <span class="tok-number">0x0</span>);</span> <span class="line" id="L997"> <span class="tok-kw">var</span> x36: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L998"> <span class="tok-kw">var</span> x37: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L999"> mulxU64(&x36, &x37, x28, <span class="tok-number">0x4b0dff665588b13f</span>);</span> <span class="line" id="L1000"> <span class="tok-kw">var</span> x38: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1001"> <span class="tok-kw">var</span> x39: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1002"> mulxU64(&x38, &x39, x36, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1003"> <span class="tok-kw">var</span> x40: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1004"> <span class="tok-kw">var</span> x41: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1005"> mulxU64(&x40, &x41, x36, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L1006"> <span class="tok-kw">var</span> x42: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1007"> <span class="tok-kw">var</span> x43: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1008"> mulxU64(&x42, &x43, x36, <span class="tok-number">0xbaaedce6af48a03b</span>);</span> <span class="line" id="L1009"> <span class="tok-kw">var</span> x44: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1010"> <span class="tok-kw">var</span> x45: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1011"> mulxU64(&x44, &x45, x36, <span class="tok-number">0xbfd25e8cd0364141</span>);</span> <span class="line" id="L1012"> <span class="tok-kw">var</span> x46: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1013"> <span class="tok-kw">var</span> x47: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1014"> addcarryxU64(&x46, &x47, <span class="tok-number">0x0</span>, x45, x42);</span> <span class="line" id="L1015"> <span class="tok-kw">var</span> x48: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1016"> <span class="tok-kw">var</span> x49: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1017"> addcarryxU64(&x48, &x49, x47, x43, x40);</span> <span class="line" id="L1018"> <span class="tok-kw">var</span> x50: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1019"> <span class="tok-kw">var</span> x51: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1020"> addcarryxU64(&x50, &x51, x49, x41, x38);</span> <span class="line" id="L1021"> <span class="tok-kw">var</span> x52: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1022"> <span class="tok-kw">var</span> x53: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1023"> addcarryxU64(&x52, &x53, <span class="tok-number">0x0</span>, x28, x44);</span> <span class="line" id="L1024"> <span class="tok-kw">var</span> x54: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1025"> <span class="tok-kw">var</span> x55: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1026"> addcarryxU64(&x54, &x55, x53, x30, x46);</span> <span class="line" id="L1027"> <span class="tok-kw">var</span> x56: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1028"> <span class="tok-kw">var</span> x57: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1029"> addcarryxU64(&x56, &x57, x55, x32, x48);</span> <span class="line" id="L1030"> <span class="tok-kw">var</span> x58: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1031"> <span class="tok-kw">var</span> x59: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1032"> addcarryxU64(&x58, &x59, x57, x34, x50);</span> <span class="line" id="L1033"> <span class="tok-kw">var</span> x60: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1034"> <span class="tok-kw">var</span> x61: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1035"> addcarryxU64(&x60, &x61, x59, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x35) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x27)), (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x51) + x39));</span> <span class="line" id="L1036"> <span class="tok-kw">var</span> x62: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1037"> <span class="tok-kw">var</span> x63: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1038"> addcarryxU64(&x62, &x63, <span class="tok-number">0x0</span>, x54, (arg1[<span class="tok-number">2</span>]));</span> <span class="line" id="L1039"> <span class="tok-kw">var</span> x64: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1040"> <span class="tok-kw">var</span> x65: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1041"> addcarryxU64(&x64, &x65, x63, x56, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1042"> <span class="tok-kw">var</span> x66: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1043"> <span class="tok-kw">var</span> x67: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1044"> addcarryxU64(&x66, &x67, x65, x58, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1045"> <span class="tok-kw">var</span> x68: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1046"> <span class="tok-kw">var</span> x69: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1047"> addcarryxU64(&x68, &x69, x67, x60, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1048"> <span class="tok-kw">var</span> x70: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1049"> <span class="tok-kw">var</span> x71: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1050"> mulxU64(&x70, &x71, x62, <span class="tok-number">0x4b0dff665588b13f</span>);</span> <span class="line" id="L1051"> <span class="tok-kw">var</span> x72: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1052"> <span class="tok-kw">var</span> x73: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1053"> mulxU64(&x72, &x73, x70, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1054"> <span class="tok-kw">var</span> x74: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1055"> <span class="tok-kw">var</span> x75: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1056"> mulxU64(&x74, &x75, x70, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L1057"> <span class="tok-kw">var</span> x76: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1058"> <span class="tok-kw">var</span> x77: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1059"> mulxU64(&x76, &x77, x70, <span class="tok-number">0xbaaedce6af48a03b</span>);</span> <span class="line" id="L1060"> <span class="tok-kw">var</span> x78: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1061"> <span class="tok-kw">var</span> x79: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1062"> mulxU64(&x78, &x79, x70, <span class="tok-number">0xbfd25e8cd0364141</span>);</span> <span class="line" id="L1063"> <span class="tok-kw">var</span> x80: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1064"> <span class="tok-kw">var</span> x81: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1065"> addcarryxU64(&x80, &x81, <span class="tok-number">0x0</span>, x79, x76);</span> <span class="line" id="L1066"> <span class="tok-kw">var</span> x82: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1067"> <span class="tok-kw">var</span> x83: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1068"> addcarryxU64(&x82, &x83, x81, x77, x74);</span> <span class="line" id="L1069"> <span class="tok-kw">var</span> x84: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1070"> <span class="tok-kw">var</span> x85: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1071"> addcarryxU64(&x84, &x85, x83, x75, x72);</span> <span class="line" id="L1072"> <span class="tok-kw">var</span> x86: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1073"> <span class="tok-kw">var</span> x87: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1074"> addcarryxU64(&x86, &x87, <span class="tok-number">0x0</span>, x62, x78);</span> <span class="line" id="L1075"> <span class="tok-kw">var</span> x88: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1076"> <span class="tok-kw">var</span> x89: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1077"> addcarryxU64(&x88, &x89, x87, x64, x80);</span> <span class="line" id="L1078"> <span class="tok-kw">var</span> x90: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1079"> <span class="tok-kw">var</span> x91: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1080"> addcarryxU64(&x90, &x91, x89, x66, x82);</span> <span class="line" id="L1081"> <span class="tok-kw">var</span> x92: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1082"> <span class="tok-kw">var</span> x93: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1083"> addcarryxU64(&x92, &x93, x91, x68, x84);</span> <span class="line" id="L1084"> <span class="tok-kw">var</span> x94: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1085"> <span class="tok-kw">var</span> x95: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1086"> addcarryxU64(&x94, &x95, x93, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x69) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x61)), (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x85) + x73));</span> <span class="line" id="L1087"> <span class="tok-kw">var</span> x96: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1088"> <span class="tok-kw">var</span> x97: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1089"> addcarryxU64(&x96, &x97, <span class="tok-number">0x0</span>, x88, (arg1[<span class="tok-number">3</span>]));</span> <span class="line" id="L1090"> <span class="tok-kw">var</span> x98: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1091"> <span class="tok-kw">var</span> x99: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1092"> addcarryxU64(&x98, &x99, x97, x90, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1093"> <span class="tok-kw">var</span> x100: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1094"> <span class="tok-kw">var</span> x101: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1095"> addcarryxU64(&x100, &x101, x99, x92, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1096"> <span class="tok-kw">var</span> x102: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1097"> <span class="tok-kw">var</span> x103: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1098"> addcarryxU64(&x102, &x103, x101, x94, <span class="tok-number">0x0</span>);</span> <span class="line" id="L1099"> <span class="tok-kw">var</span> x104: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1100"> <span class="tok-kw">var</span> x105: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1101"> mulxU64(&x104, &x105, x96, <span class="tok-number">0x4b0dff665588b13f</span>);</span> <span class="line" id="L1102"> <span class="tok-kw">var</span> x106: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1103"> <span class="tok-kw">var</span> x107: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1104"> mulxU64(&x106, &x107, x104, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1105"> <span class="tok-kw">var</span> x108: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1106"> <span class="tok-kw">var</span> x109: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1107"> mulxU64(&x108, &x109, x104, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L1108"> <span class="tok-kw">var</span> x110: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1109"> <span class="tok-kw">var</span> x111: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1110"> mulxU64(&x110, &x111, x104, <span class="tok-number">0xbaaedce6af48a03b</span>);</span> <span class="line" id="L1111"> <span class="tok-kw">var</span> x112: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1112"> <span class="tok-kw">var</span> x113: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1113"> mulxU64(&x112, &x113, x104, <span class="tok-number">0xbfd25e8cd0364141</span>);</span> <span class="line" id="L1114"> <span class="tok-kw">var</span> x114: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1115"> <span class="tok-kw">var</span> x115: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1116"> addcarryxU64(&x114, &x115, <span class="tok-number">0x0</span>, x113, x110);</span> <span class="line" id="L1117"> <span class="tok-kw">var</span> x116: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1118"> <span class="tok-kw">var</span> x117: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1119"> addcarryxU64(&x116, &x117, x115, x111, x108);</span> <span class="line" id="L1120"> <span class="tok-kw">var</span> x118: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1121"> <span class="tok-kw">var</span> x119: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1122"> addcarryxU64(&x118, &x119, x117, x109, x106);</span> <span class="line" id="L1123"> <span class="tok-kw">var</span> x120: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1124"> <span class="tok-kw">var</span> x121: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1125"> addcarryxU64(&x120, &x121, <span class="tok-number">0x0</span>, x96, x112);</span> <span class="line" id="L1126"> <span class="tok-kw">var</span> x122: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1127"> <span class="tok-kw">var</span> x123: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1128"> addcarryxU64(&x122, &x123, x121, x98, x114);</span> <span class="line" id="L1129"> <span class="tok-kw">var</span> x124: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1130"> <span class="tok-kw">var</span> x125: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1131"> addcarryxU64(&x124, &x125, x123, x100, x116);</span> <span class="line" id="L1132"> <span class="tok-kw">var</span> x126: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1133"> <span class="tok-kw">var</span> x127: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1134"> addcarryxU64(&x126, &x127, x125, x102, x118);</span> <span class="line" id="L1135"> <span class="tok-kw">var</span> x128: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1136"> <span class="tok-kw">var</span> x129: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1137"> addcarryxU64(&x128, &x129, x127, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x103) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x95)), (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x119) + x107));</span> <span class="line" id="L1138"> <span class="tok-kw">var</span> x130: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1139"> <span class="tok-kw">var</span> x131: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1140"> subborrowxU64(&x130, &x131, <span class="tok-number">0x0</span>, x122, <span class="tok-number">0xbfd25e8cd0364141</span>);</span> <span class="line" id="L1141"> <span class="tok-kw">var</span> x132: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1142"> <span class="tok-kw">var</span> x133: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1143"> subborrowxU64(&x132, &x133, x131, x124, <span class="tok-number">0xbaaedce6af48a03b</span>);</span> <span class="line" id="L1144"> <span class="tok-kw">var</span> x134: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1145"> <span class="tok-kw">var</span> x135: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1146"> subborrowxU64(&x134, &x135, x133, x126, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L1147"> <span class="tok-kw">var</span> x136: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1148"> <span class="tok-kw">var</span> x137: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1149"> subborrowxU64(&x136, &x137, x135, x128, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1150"> <span class="tok-kw">var</span> x138: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1151"> <span class="tok-kw">var</span> x139: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1152"> subborrowxU64(&x138, &x139, x137, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x129), <span class="tok-number">0x0</span>);</span> <span class="line" id="L1153"> <span class="tok-kw">var</span> x140: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1154"> cmovznzU64(&x140, x139, x130, x122);</span> <span class="line" id="L1155"> <span class="tok-kw">var</span> x141: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1156"> cmovznzU64(&x141, x139, x132, x124);</span> <span class="line" id="L1157"> <span class="tok-kw">var</span> x142: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1158"> cmovznzU64(&x142, x139, x134, x126);</span> <span class="line" id="L1159"> <span class="tok-kw">var</span> x143: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1160"> cmovznzU64(&x143, x139, x136, x128);</span> <span class="line" id="L1161"> out1[<span class="tok-number">0</span>] = x140;</span> <span class="line" id="L1162"> out1[<span class="tok-number">1</span>] = x141;</span> <span class="line" id="L1163"> out1[<span class="tok-number">2</span>] = x142;</span> <span class="line" id="L1164"> out1[<span class="tok-number">3</span>] = x143;</span> <span class="line" id="L1165">}</span> <span class="line" id="L1166"></span> <span class="line" id="L1167"><span class="tok-comment">/// The function toMontgomery translates a field element into the Montgomery domain.</span></span> <span class="line" id="L1168"><span class="tok-comment">///</span></span> <span class="line" id="L1169"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L1170"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L1171"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L1172"><span class="tok-comment">/// eval (from_montgomery out1) mod m = eval arg1 mod m</span></span> <span class="line" id="L1173"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L1174"><span class="tok-comment">///</span></span> <span class="line" id="L1175"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toMontgomery</span>(out1: MontgomeryDomainFieldElement, arg1: NonMontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L1176"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L1177"></span> <span class="line" id="L1178"> <span class="tok-kw">const</span> x1 = (arg1[<span class="tok-number">1</span>]);</span> <span class="line" id="L1179"> <span class="tok-kw">const</span> x2 = (arg1[<span class="tok-number">2</span>]);</span> <span class="line" id="L1180"> <span class="tok-kw">const</span> x3 = (arg1[<span class="tok-number">3</span>]);</span> <span class="line" id="L1181"> <span class="tok-kw">const</span> x4 = (arg1[<span class="tok-number">0</span>]);</span> <span class="line" id="L1182"> <span class="tok-kw">var</span> x5: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1183"> <span class="tok-kw">var</span> x6: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1184"> mulxU64(&x5, &x6, x4, <span class="tok-number">0x9d671cd581c69bc5</span>);</span> <span class="line" id="L1185"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1186"> <span class="tok-kw">var</span> x8: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1187"> mulxU64(&x7, &x8, x4, <span class="tok-number">0xe697f5e45bcd07c6</span>);</span> <span class="line" id="L1188"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1189"> <span class="tok-kw">var</span> x10: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1190"> mulxU64(&x9, &x10, x4, <span class="tok-number">0x741496c20e7cf878</span>);</span> <span class="line" id="L1191"> <span class="tok-kw">var</span> x11: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1192"> <span class="tok-kw">var</span> x12: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1193"> mulxU64(&x11, &x12, x4, <span class="tok-number">0x896cf21467d7d140</span>);</span> <span class="line" id="L1194"> <span class="tok-kw">var</span> x13: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1195"> <span class="tok-kw">var</span> x14: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1196"> addcarryxU64(&x13, &x14, <span class="tok-number">0x0</span>, x12, x9);</span> <span class="line" id="L1197"> <span class="tok-kw">var</span> x15: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1198"> <span class="tok-kw">var</span> x16: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1199"> addcarryxU64(&x15, &x16, x14, x10, x7);</span> <span class="line" id="L1200"> <span class="tok-kw">var</span> x17: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1201"> <span class="tok-kw">var</span> x18: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1202"> addcarryxU64(&x17, &x18, x16, x8, x5);</span> <span class="line" id="L1203"> <span class="tok-kw">var</span> x19: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1204"> <span class="tok-kw">var</span> x20: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1205"> mulxU64(&x19, &x20, x11, <span class="tok-number">0x4b0dff665588b13f</span>);</span> <span class="line" id="L1206"> <span class="tok-kw">var</span> x21: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1207"> <span class="tok-kw">var</span> x22: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1208"> mulxU64(&x21, &x22, x19, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1209"> <span class="tok-kw">var</span> x23: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1210"> <span class="tok-kw">var</span> x24: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1211"> mulxU64(&x23, &x24, x19, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L1212"> <span class="tok-kw">var</span> x25: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1213"> <span class="tok-kw">var</span> x26: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1214"> mulxU64(&x25, &x26, x19, <span class="tok-number">0xbaaedce6af48a03b</span>);</span> <span class="line" id="L1215"> <span class="tok-kw">var</span> x27: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1216"> <span class="tok-kw">var</span> x28: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1217"> mulxU64(&x27, &x28, x19, <span class="tok-number">0xbfd25e8cd0364141</span>);</span> <span class="line" id="L1218"> <span class="tok-kw">var</span> x29: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1219"> <span class="tok-kw">var</span> x30: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1220"> addcarryxU64(&x29, &x30, <span class="tok-number">0x0</span>, x28, x25);</span> <span class="line" id="L1221"> <span class="tok-kw">var</span> x31: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1222"> <span class="tok-kw">var</span> x32: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1223"> addcarryxU64(&x31, &x32, x30, x26, x23);</span> <span class="line" id="L1224"> <span class="tok-kw">var</span> x33: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1225"> <span class="tok-kw">var</span> x34: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1226"> addcarryxU64(&x33, &x34, x32, x24, x21);</span> <span class="line" id="L1227"> <span class="tok-kw">var</span> x35: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1228"> <span class="tok-kw">var</span> x36: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1229"> addcarryxU64(&x35, &x36, <span class="tok-number">0x0</span>, x11, x27);</span> <span class="line" id="L1230"> <span class="tok-kw">var</span> x37: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1231"> <span class="tok-kw">var</span> x38: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1232"> addcarryxU64(&x37, &x38, x36, x13, x29);</span> <span class="line" id="L1233"> <span class="tok-kw">var</span> x39: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1234"> <span class="tok-kw">var</span> x40: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1235"> addcarryxU64(&x39, &x40, x38, x15, x31);</span> <span class="line" id="L1236"> <span class="tok-kw">var</span> x41: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1237"> <span class="tok-kw">var</span> x42: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1238"> addcarryxU64(&x41, &x42, x40, x17, x33);</span> <span class="line" id="L1239"> <span class="tok-kw">var</span> x43: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1240"> <span class="tok-kw">var</span> x44: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1241"> addcarryxU64(&x43, &x44, x42, (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x18) + x6), (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x34) + x22));</span> <span class="line" id="L1242"> <span class="tok-kw">var</span> x45: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1243"> <span class="tok-kw">var</span> x46: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1244"> mulxU64(&x45, &x46, x1, <span class="tok-number">0x9d671cd581c69bc5</span>);</span> <span class="line" id="L1245"> <span class="tok-kw">var</span> x47: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1246"> <span class="tok-kw">var</span> x48: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1247"> mulxU64(&x47, &x48, x1, <span class="tok-number">0xe697f5e45bcd07c6</span>);</span> <span class="line" id="L1248"> <span class="tok-kw">var</span> x49: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1249"> <span class="tok-kw">var</span> x50: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1250"> mulxU64(&x49, &x50, x1, <span class="tok-number">0x741496c20e7cf878</span>);</span> <span class="line" id="L1251"> <span class="tok-kw">var</span> x51: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1252"> <span class="tok-kw">var</span> x52: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1253"> mulxU64(&x51, &x52, x1, <span class="tok-number">0x896cf21467d7d140</span>);</span> <span class="line" id="L1254"> <span class="tok-kw">var</span> x53: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1255"> <span class="tok-kw">var</span> x54: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1256"> addcarryxU64(&x53, &x54, <span class="tok-number">0x0</span>, x52, x49);</span> <span class="line" id="L1257"> <span class="tok-kw">var</span> x55: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1258"> <span class="tok-kw">var</span> x56: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1259"> addcarryxU64(&x55, &x56, x54, x50, x47);</span> <span class="line" id="L1260"> <span class="tok-kw">var</span> x57: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1261"> <span class="tok-kw">var</span> x58: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1262"> addcarryxU64(&x57, &x58, x56, x48, x45);</span> <span class="line" id="L1263"> <span class="tok-kw">var</span> x59: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1264"> <span class="tok-kw">var</span> x60: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1265"> addcarryxU64(&x59, &x60, <span class="tok-number">0x0</span>, x37, x51);</span> <span class="line" id="L1266"> <span class="tok-kw">var</span> x61: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1267"> <span class="tok-kw">var</span> x62: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1268"> addcarryxU64(&x61, &x62, x60, x39, x53);</span> <span class="line" id="L1269"> <span class="tok-kw">var</span> x63: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1270"> <span class="tok-kw">var</span> x64: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1271"> addcarryxU64(&x63, &x64, x62, x41, x55);</span> <span class="line" id="L1272"> <span class="tok-kw">var</span> x65: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1273"> <span class="tok-kw">var</span> x66: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1274"> addcarryxU64(&x65, &x66, x64, x43, x57);</span> <span class="line" id="L1275"> <span class="tok-kw">var</span> x67: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1276"> <span class="tok-kw">var</span> x68: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1277"> mulxU64(&x67, &x68, x59, <span class="tok-number">0x4b0dff665588b13f</span>);</span> <span class="line" id="L1278"> <span class="tok-kw">var</span> x69: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1279"> <span class="tok-kw">var</span> x70: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1280"> mulxU64(&x69, &x70, x67, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1281"> <span class="tok-kw">var</span> x71: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1282"> <span class="tok-kw">var</span> x72: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1283"> mulxU64(&x71, &x72, x67, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L1284"> <span class="tok-kw">var</span> x73: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1285"> <span class="tok-kw">var</span> x74: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1286"> mulxU64(&x73, &x74, x67, <span class="tok-number">0xbaaedce6af48a03b</span>);</span> <span class="line" id="L1287"> <span class="tok-kw">var</span> x75: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1288"> <span class="tok-kw">var</span> x76: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1289"> mulxU64(&x75, &x76, x67, <span class="tok-number">0xbfd25e8cd0364141</span>);</span> <span class="line" id="L1290"> <span class="tok-kw">var</span> x77: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1291"> <span class="tok-kw">var</span> x78: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1292"> addcarryxU64(&x77, &x78, <span class="tok-number">0x0</span>, x76, x73);</span> <span class="line" id="L1293"> <span class="tok-kw">var</span> x79: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1294"> <span class="tok-kw">var</span> x80: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1295"> addcarryxU64(&x79, &x80, x78, x74, x71);</span> <span class="line" id="L1296"> <span class="tok-kw">var</span> x81: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1297"> <span class="tok-kw">var</span> x82: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1298"> addcarryxU64(&x81, &x82, x80, x72, x69);</span> <span class="line" id="L1299"> <span class="tok-kw">var</span> x83: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1300"> <span class="tok-kw">var</span> x84: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1301"> addcarryxU64(&x83, &x84, <span class="tok-number">0x0</span>, x59, x75);</span> <span class="line" id="L1302"> <span class="tok-kw">var</span> x85: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1303"> <span class="tok-kw">var</span> x86: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1304"> addcarryxU64(&x85, &x86, x84, x61, x77);</span> <span class="line" id="L1305"> <span class="tok-kw">var</span> x87: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1306"> <span class="tok-kw">var</span> x88: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1307"> addcarryxU64(&x87, &x88, x86, x63, x79);</span> <span class="line" id="L1308"> <span class="tok-kw">var</span> x89: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1309"> <span class="tok-kw">var</span> x90: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1310"> addcarryxU64(&x89, &x90, x88, x65, x81);</span> <span class="line" id="L1311"> <span class="tok-kw">var</span> x91: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1312"> <span class="tok-kw">var</span> x92: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1313"> addcarryxU64(&x91, &x92, x90, ((<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x66) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x44)) + (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x58) + x46)), (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x82) + x70));</span> <span class="line" id="L1314"> <span class="tok-kw">var</span> x93: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1315"> <span class="tok-kw">var</span> x94: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1316"> mulxU64(&x93, &x94, x2, <span class="tok-number">0x9d671cd581c69bc5</span>);</span> <span class="line" id="L1317"> <span class="tok-kw">var</span> x95: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1318"> <span class="tok-kw">var</span> x96: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1319"> mulxU64(&x95, &x96, x2, <span class="tok-number">0xe697f5e45bcd07c6</span>);</span> <span class="line" id="L1320"> <span class="tok-kw">var</span> x97: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1321"> <span class="tok-kw">var</span> x98: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1322"> mulxU64(&x97, &x98, x2, <span class="tok-number">0x741496c20e7cf878</span>);</span> <span class="line" id="L1323"> <span class="tok-kw">var</span> x99: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1324"> <span class="tok-kw">var</span> x100: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1325"> mulxU64(&x99, &x100, x2, <span class="tok-number">0x896cf21467d7d140</span>);</span> <span class="line" id="L1326"> <span class="tok-kw">var</span> x101: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1327"> <span class="tok-kw">var</span> x102: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1328"> addcarryxU64(&x101, &x102, <span class="tok-number">0x0</span>, x100, x97);</span> <span class="line" id="L1329"> <span class="tok-kw">var</span> x103: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1330"> <span class="tok-kw">var</span> x104: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1331"> addcarryxU64(&x103, &x104, x102, x98, x95);</span> <span class="line" id="L1332"> <span class="tok-kw">var</span> x105: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1333"> <span class="tok-kw">var</span> x106: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1334"> addcarryxU64(&x105, &x106, x104, x96, x93);</span> <span class="line" id="L1335"> <span class="tok-kw">var</span> x107: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1336"> <span class="tok-kw">var</span> x108: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1337"> addcarryxU64(&x107, &x108, <span class="tok-number">0x0</span>, x85, x99);</span> <span class="line" id="L1338"> <span class="tok-kw">var</span> x109: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1339"> <span class="tok-kw">var</span> x110: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1340"> addcarryxU64(&x109, &x110, x108, x87, x101);</span> <span class="line" id="L1341"> <span class="tok-kw">var</span> x111: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1342"> <span class="tok-kw">var</span> x112: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1343"> addcarryxU64(&x111, &x112, x110, x89, x103);</span> <span class="line" id="L1344"> <span class="tok-kw">var</span> x113: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1345"> <span class="tok-kw">var</span> x114: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1346"> addcarryxU64(&x113, &x114, x112, x91, x105);</span> <span class="line" id="L1347"> <span class="tok-kw">var</span> x115: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1348"> <span class="tok-kw">var</span> x116: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1349"> mulxU64(&x115, &x116, x107, <span class="tok-number">0x4b0dff665588b13f</span>);</span> <span class="line" id="L1350"> <span class="tok-kw">var</span> x117: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1351"> <span class="tok-kw">var</span> x118: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1352"> mulxU64(&x117, &x118, x115, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1353"> <span class="tok-kw">var</span> x119: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1354"> <span class="tok-kw">var</span> x120: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1355"> mulxU64(&x119, &x120, x115, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L1356"> <span class="tok-kw">var</span> x121: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1357"> <span class="tok-kw">var</span> x122: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1358"> mulxU64(&x121, &x122, x115, <span class="tok-number">0xbaaedce6af48a03b</span>);</span> <span class="line" id="L1359"> <span class="tok-kw">var</span> x123: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1360"> <span class="tok-kw">var</span> x124: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1361"> mulxU64(&x123, &x124, x115, <span class="tok-number">0xbfd25e8cd0364141</span>);</span> <span class="line" id="L1362"> <span class="tok-kw">var</span> x125: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1363"> <span class="tok-kw">var</span> x126: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1364"> addcarryxU64(&x125, &x126, <span class="tok-number">0x0</span>, x124, x121);</span> <span class="line" id="L1365"> <span class="tok-kw">var</span> x127: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1366"> <span class="tok-kw">var</span> x128: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1367"> addcarryxU64(&x127, &x128, x126, x122, x119);</span> <span class="line" id="L1368"> <span class="tok-kw">var</span> x129: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1369"> <span class="tok-kw">var</span> x130: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1370"> addcarryxU64(&x129, &x130, x128, x120, x117);</span> <span class="line" id="L1371"> <span class="tok-kw">var</span> x131: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1372"> <span class="tok-kw">var</span> x132: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1373"> addcarryxU64(&x131, &x132, <span class="tok-number">0x0</span>, x107, x123);</span> <span class="line" id="L1374"> <span class="tok-kw">var</span> x133: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1375"> <span class="tok-kw">var</span> x134: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1376"> addcarryxU64(&x133, &x134, x132, x109, x125);</span> <span class="line" id="L1377"> <span class="tok-kw">var</span> x135: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1378"> <span class="tok-kw">var</span> x136: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1379"> addcarryxU64(&x135, &x136, x134, x111, x127);</span> <span class="line" id="L1380"> <span class="tok-kw">var</span> x137: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1381"> <span class="tok-kw">var</span> x138: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1382"> addcarryxU64(&x137, &x138, x136, x113, x129);</span> <span class="line" id="L1383"> <span class="tok-kw">var</span> x139: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1384"> <span class="tok-kw">var</span> x140: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1385"> addcarryxU64(&x139, &x140, x138, ((<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x114) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x92)) + (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x106) + x94)), (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x130) + x118));</span> <span class="line" id="L1386"> <span class="tok-kw">var</span> x141: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1387"> <span class="tok-kw">var</span> x142: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1388"> mulxU64(&x141, &x142, x3, <span class="tok-number">0x9d671cd581c69bc5</span>);</span> <span class="line" id="L1389"> <span class="tok-kw">var</span> x143: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1390"> <span class="tok-kw">var</span> x144: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1391"> mulxU64(&x143, &x144, x3, <span class="tok-number">0xe697f5e45bcd07c6</span>);</span> <span class="line" id="L1392"> <span class="tok-kw">var</span> x145: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1393"> <span class="tok-kw">var</span> x146: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1394"> mulxU64(&x145, &x146, x3, <span class="tok-number">0x741496c20e7cf878</span>);</span> <span class="line" id="L1395"> <span class="tok-kw">var</span> x147: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1396"> <span class="tok-kw">var</span> x148: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1397"> mulxU64(&x147, &x148, x3, <span class="tok-number">0x896cf21467d7d140</span>);</span> <span class="line" id="L1398"> <span class="tok-kw">var</span> x149: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1399"> <span class="tok-kw">var</span> x150: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1400"> addcarryxU64(&x149, &x150, <span class="tok-number">0x0</span>, x148, x145);</span> <span class="line" id="L1401"> <span class="tok-kw">var</span> x151: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1402"> <span class="tok-kw">var</span> x152: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1403"> addcarryxU64(&x151, &x152, x150, x146, x143);</span> <span class="line" id="L1404"> <span class="tok-kw">var</span> x153: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1405"> <span class="tok-kw">var</span> x154: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1406"> addcarryxU64(&x153, &x154, x152, x144, x141);</span> <span class="line" id="L1407"> <span class="tok-kw">var</span> x155: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1408"> <span class="tok-kw">var</span> x156: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1409"> addcarryxU64(&x155, &x156, <span class="tok-number">0x0</span>, x133, x147);</span> <span class="line" id="L1410"> <span class="tok-kw">var</span> x157: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1411"> <span class="tok-kw">var</span> x158: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1412"> addcarryxU64(&x157, &x158, x156, x135, x149);</span> <span class="line" id="L1413"> <span class="tok-kw">var</span> x159: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1414"> <span class="tok-kw">var</span> x160: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1415"> addcarryxU64(&x159, &x160, x158, x137, x151);</span> <span class="line" id="L1416"> <span class="tok-kw">var</span> x161: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1417"> <span class="tok-kw">var</span> x162: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1418"> addcarryxU64(&x161, &x162, x160, x139, x153);</span> <span class="line" id="L1419"> <span class="tok-kw">var</span> x163: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1420"> <span class="tok-kw">var</span> x164: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1421"> mulxU64(&x163, &x164, x155, <span class="tok-number">0x4b0dff665588b13f</span>);</span> <span class="line" id="L1422"> <span class="tok-kw">var</span> x165: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1423"> <span class="tok-kw">var</span> x166: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1424"> mulxU64(&x165, &x166, x163, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1425"> <span class="tok-kw">var</span> x167: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1426"> <span class="tok-kw">var</span> x168: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1427"> mulxU64(&x167, &x168, x163, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L1428"> <span class="tok-kw">var</span> x169: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1429"> <span class="tok-kw">var</span> x170: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1430"> mulxU64(&x169, &x170, x163, <span class="tok-number">0xbaaedce6af48a03b</span>);</span> <span class="line" id="L1431"> <span class="tok-kw">var</span> x171: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1432"> <span class="tok-kw">var</span> x172: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1433"> mulxU64(&x171, &x172, x163, <span class="tok-number">0xbfd25e8cd0364141</span>);</span> <span class="line" id="L1434"> <span class="tok-kw">var</span> x173: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1435"> <span class="tok-kw">var</span> x174: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1436"> addcarryxU64(&x173, &x174, <span class="tok-number">0x0</span>, x172, x169);</span> <span class="line" id="L1437"> <span class="tok-kw">var</span> x175: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1438"> <span class="tok-kw">var</span> x176: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1439"> addcarryxU64(&x175, &x176, x174, x170, x167);</span> <span class="line" id="L1440"> <span class="tok-kw">var</span> x177: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1441"> <span class="tok-kw">var</span> x178: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1442"> addcarryxU64(&x177, &x178, x176, x168, x165);</span> <span class="line" id="L1443"> <span class="tok-kw">var</span> x179: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1444"> <span class="tok-kw">var</span> x180: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1445"> addcarryxU64(&x179, &x180, <span class="tok-number">0x0</span>, x155, x171);</span> <span class="line" id="L1446"> <span class="tok-kw">var</span> x181: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1447"> <span class="tok-kw">var</span> x182: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1448"> addcarryxU64(&x181, &x182, x180, x157, x173);</span> <span class="line" id="L1449"> <span class="tok-kw">var</span> x183: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1450"> <span class="tok-kw">var</span> x184: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1451"> addcarryxU64(&x183, &x184, x182, x159, x175);</span> <span class="line" id="L1452"> <span class="tok-kw">var</span> x185: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1453"> <span class="tok-kw">var</span> x186: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1454"> addcarryxU64(&x185, &x186, x184, x161, x177);</span> <span class="line" id="L1455"> <span class="tok-kw">var</span> x187: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1456"> <span class="tok-kw">var</span> x188: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1457"> addcarryxU64(&x187, &x188, x186, ((<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x162) + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x140)) + (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x154) + x142)), (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x178) + x166));</span> <span class="line" id="L1458"> <span class="tok-kw">var</span> x189: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1459"> <span class="tok-kw">var</span> x190: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1460"> subborrowxU64(&x189, &x190, <span class="tok-number">0x0</span>, x181, <span class="tok-number">0xbfd25e8cd0364141</span>);</span> <span class="line" id="L1461"> <span class="tok-kw">var</span> x191: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1462"> <span class="tok-kw">var</span> x192: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1463"> subborrowxU64(&x191, &x192, x190, x183, <span class="tok-number">0xbaaedce6af48a03b</span>);</span> <span class="line" id="L1464"> <span class="tok-kw">var</span> x193: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1465"> <span class="tok-kw">var</span> x194: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1466"> subborrowxU64(&x193, &x194, x192, x185, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L1467"> <span class="tok-kw">var</span> x195: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1468"> <span class="tok-kw">var</span> x196: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1469"> subborrowxU64(&x195, &x196, x194, x187, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1470"> <span class="tok-kw">var</span> x197: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1471"> <span class="tok-kw">var</span> x198: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1472"> subborrowxU64(&x197, &x198, x196, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x188), <span class="tok-number">0x0</span>);</span> <span class="line" id="L1473"> <span class="tok-kw">var</span> x199: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1474"> cmovznzU64(&x199, x198, x189, x181);</span> <span class="line" id="L1475"> <span class="tok-kw">var</span> x200: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1476"> cmovznzU64(&x200, x198, x191, x183);</span> <span class="line" id="L1477"> <span class="tok-kw">var</span> x201: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1478"> cmovznzU64(&x201, x198, x193, x185);</span> <span class="line" id="L1479"> <span class="tok-kw">var</span> x202: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1480"> cmovznzU64(&x202, x198, x195, x187);</span> <span class="line" id="L1481"> out1[<span class="tok-number">0</span>] = x199;</span> <span class="line" id="L1482"> out1[<span class="tok-number">1</span>] = x200;</span> <span class="line" id="L1483"> out1[<span class="tok-number">2</span>] = x201;</span> <span class="line" id="L1484"> out1[<span class="tok-number">3</span>] = x202;</span> <span class="line" id="L1485">}</span> <span class="line" id="L1486"></span> <span class="line" id="L1487"><span class="tok-comment">/// The function nonzero outputs a single non-zero word if the input is non-zero and zero otherwise.</span></span> <span class="line" id="L1488"><span class="tok-comment">///</span></span> <span class="line" id="L1489"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L1490"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L1491"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L1492"><span class="tok-comment">/// out1 = 0 ↔ eval (from_montgomery arg1) mod m = 0</span></span> <span class="line" id="L1493"><span class="tok-comment">///</span></span> <span class="line" id="L1494"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L1495"><span class="tok-comment">/// arg1: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1496"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L1497"><span class="tok-comment">/// out1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L1498"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">nonzero</span>(out1: <span class="tok-type">u64</span>, arg1: [<span class="tok-number">4</span>]<span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L1499"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L1500"></span> <span class="line" id="L1501"> <span class="tok-kw">const</span> x1 = ((arg1[<span class="tok-number">0</span>]) \| ((arg1[<span class="tok-number">1</span>]) \| ((arg1[<span class="tok-number">2</span>]) \| (arg1[<span class="tok-number">3</span>]))));</span> <span class="line" id="L1502"> out1. = x1;</span> <span class="line" id="L1503">}</span> <span class="line" id="L1504"></span> <span class="line" id="L1505"><span class="tok-comment">/// The function selectznz is a multi-limb conditional select.</span></span> <span class="line" id="L1506"><span class="tok-comment">///</span></span> <span class="line" id="L1507"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L1508"><span class="tok-comment">/// out1 = (if arg1 = 0 then arg2 else arg3)</span></span> <span class="line" id="L1509"><span class="tok-comment">///</span></span> <span class="line" id="L1510"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L1511"><span class="tok-comment">/// arg1: [0x0 ~> 0x1]</span></span> <span class="line" id="L1512"><span class="tok-comment">/// arg2: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1513"><span class="tok-comment">/// arg3: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1514"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L1515"><span class="tok-comment">/// out1: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1516"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">selectznz</span>(out1: [<span class="tok-number">4</span>]<span class="tok-type">u64</span>, arg1: <span class="tok-type">u1</span>, arg2: [<span class="tok-number">4</span>]<span class="tok-type">u64</span>, arg3: [<span class="tok-number">4</span>]<span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L1517"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L1518"></span> <span class="line" id="L1519"> <span class="tok-kw">var</span> x1: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1520"> cmovznzU64(&x1, arg1, (arg2[<span class="tok-number">0</span>]), (arg3[<span class="tok-number">0</span>]));</span> <span class="line" id="L1521"> <span class="tok-kw">var</span> x2: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1522"> cmovznzU64(&x2, arg1, (arg2[<span class="tok-number">1</span>]), (arg3[<span class="tok-number">1</span>]));</span> <span class="line" id="L1523"> <span class="tok-kw">var</span> x3: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1524"> cmovznzU64(&x3, arg1, (arg2[<span class="tok-number">2</span>]), (arg3[<span class="tok-number">2</span>]));</span> <span class="line" id="L1525"> <span class="tok-kw">var</span> x4: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1526"> cmovznzU64(&x4, arg1, (arg2[<span class="tok-number">3</span>]), (arg3[<span class="tok-number">3</span>]));</span> <span class="line" id="L1527"> out1[<span class="tok-number">0</span>] = x1;</span> <span class="line" id="L1528"> out1[<span class="tok-number">1</span>] = x2;</span> <span class="line" id="L1529"> out1[<span class="tok-number">2</span>] = x3;</span> <span class="line" id="L1530"> out1[<span class="tok-number">3</span>] = x4;</span> <span class="line" id="L1531">}</span> <span class="line" id="L1532"></span> <span class="line" id="L1533"><span class="tok-comment">/// The function toBytes serializes a field element NOT in the Montgomery domain to bytes in little-endian order.</span></span> <span class="line" id="L1534"><span class="tok-comment">///</span></span> <span class="line" id="L1535"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L1536"><span class="tok-comment">/// 0 ≤ eval arg1 < m</span></span> <span class="line" id="L1537"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L1538"><span class="tok-comment">/// out1 = map (λ x, ⌊((eval arg1 mod m) mod 2^(8 (x + 1))) / 2^(8 * x)⌋) [0..31]</span></span> <span class="line" id="L1539"><span class="tok-comment">///</span></span> <span class="line" id="L1540"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L1541"><span class="tok-comment">/// arg1: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1542"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L1543"><span class="tok-comment">/// out1: [[0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff]]</span></span> <span class="line" id="L1544"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toBytes</span>(out1: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>, arg1: [<span class="tok-number">4</span>]<span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L1545"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L1546"></span> <span class="line" id="L1547"> <span class="tok-kw">const</span> x1 = (arg1[<span class="tok-number">3</span>]);</span> <span class="line" id="L1548"> <span class="tok-kw">const</span> x2 = (arg1[<span class="tok-number">2</span>]);</span> <span class="line" id="L1549"> <span class="tok-kw">const</span> x3 = (arg1[<span class="tok-number">1</span>]);</span> <span class="line" id="L1550"> <span class="tok-kw">const</span> x4 = (arg1[<span class="tok-number">0</span>]);</span> <span class="line" id="L1551"> <span class="tok-kw">const</span> x5 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x4 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1552"> <span class="tok-kw">const</span> x6 = (x4 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1553"> <span class="tok-kw">const</span> x7 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x6 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1554"> <span class="tok-kw">const</span> x8 = (x6 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1555"> <span class="tok-kw">const</span> x9 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x8 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1556"> <span class="tok-kw">const</span> x10 = (x8 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1557"> <span class="tok-kw">const</span> x11 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x10 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1558"> <span class="tok-kw">const</span> x12 = (x10 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1559"> <span class="tok-kw">const</span> x13 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x12 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1560"> <span class="tok-kw">const</span> x14 = (x12 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1561"> <span class="tok-kw">const</span> x15 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x14 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1562"> <span class="tok-kw">const</span> x16 = (x14 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1563"> <span class="tok-kw">const</span> x17 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x16 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1564"> <span class="tok-kw">const</span> x18 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x16 >> <span class="tok-number">8</span>)));</span> <span class="line" id="L1565"> <span class="tok-kw">const</span> x19 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x3 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1566"> <span class="tok-kw">const</span> x20 = (x3 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1567"> <span class="tok-kw">const</span> x21 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x20 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1568"> <span class="tok-kw">const</span> x22 = (x20 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1569"> <span class="tok-kw">const</span> x23 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x22 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1570"> <span class="tok-kw">const</span> x24 = (x22 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1571"> <span class="tok-kw">const</span> x25 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x24 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1572"> <span class="tok-kw">const</span> x26 = (x24 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1573"> <span class="tok-kw">const</span> x27 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x26 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1574"> <span class="tok-kw">const</span> x28 = (x26 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1575"> <span class="tok-kw">const</span> x29 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x28 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1576"> <span class="tok-kw">const</span> x30 = (x28 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1577"> <span class="tok-kw">const</span> x31 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x30 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1578"> <span class="tok-kw">const</span> x32 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x30 >> <span class="tok-number">8</span>)));</span> <span class="line" id="L1579"> <span class="tok-kw">const</span> x33 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x2 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1580"> <span class="tok-kw">const</span> x34 = (x2 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1581"> <span class="tok-kw">const</span> x35 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x34 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1582"> <span class="tok-kw">const</span> x36 = (x34 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1583"> <span class="tok-kw">const</span> x37 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x36 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1584"> <span class="tok-kw">const</span> x38 = (x36 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1585"> <span class="tok-kw">const</span> x39 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x38 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1586"> <span class="tok-kw">const</span> x40 = (x38 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1587"> <span class="tok-kw">const</span> x41 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x40 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1588"> <span class="tok-kw">const</span> x42 = (x40 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1589"> <span class="tok-kw">const</span> x43 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x42 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1590"> <span class="tok-kw">const</span> x44 = (x42 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1591"> <span class="tok-kw">const</span> x45 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x44 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1592"> <span class="tok-kw">const</span> x46 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x44 >> <span class="tok-number">8</span>)));</span> <span class="line" id="L1593"> <span class="tok-kw">const</span> x47 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x1 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1594"> <span class="tok-kw">const</span> x48 = (x1 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1595"> <span class="tok-kw">const</span> x49 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x48 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1596"> <span class="tok-kw">const</span> x50 = (x48 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1597"> <span class="tok-kw">const</span> x51 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x50 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1598"> <span class="tok-kw">const</span> x52 = (x50 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1599"> <span class="tok-kw">const</span> x53 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x52 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1600"> <span class="tok-kw">const</span> x54 = (x52 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1601"> <span class="tok-kw">const</span> x55 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x54 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1602"> <span class="tok-kw">const</span> x56 = (x54 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1603"> <span class="tok-kw">const</span> x57 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x56 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1604"> <span class="tok-kw">const</span> x58 = (x56 >> <span class="tok-number">8</span>);</span> <span class="line" id="L1605"> <span class="tok-kw">const</span> x59 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x58 & <span class="tok-number">0xff</span>)));</span> <span class="line" id="L1606"> <span class="tok-kw">const</span> x60 = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>((x58 >> <span class="tok-number">8</span>)));</span> <span class="line" id="L1607"> out1[<span class="tok-number">0</span>] = x5;</span> <span class="line" id="L1608"> out1[<span class="tok-number">1</span>] = x7;</span> <span class="line" id="L1609"> out1[<span class="tok-number">2</span>] = x9;</span> <span class="line" id="L1610"> out1[<span class="tok-number">3</span>] = x11;</span> <span class="line" id="L1611"> out1[<span class="tok-number">4</span>] = x13;</span> <span class="line" id="L1612"> out1[<span class="tok-number">5</span>] = x15;</span> <span class="line" id="L1613"> out1[<span class="tok-number">6</span>] = x17;</span> <span class="line" id="L1614"> out1[<span class="tok-number">7</span>] = x18;</span> <span class="line" id="L1615"> out1[<span class="tok-number">8</span>] = x19;</span> <span class="line" id="L1616"> out1[<span class="tok-number">9</span>] = x21;</span> <span class="line" id="L1617"> out1[<span class="tok-number">10</span>] = x23;</span> <span class="line" id="L1618"> out1[<span class="tok-number">11</span>] = x25;</span> <span class="line" id="L1619"> out1[<span class="tok-number">12</span>] = x27;</span> <span class="line" id="L1620"> out1[<span class="tok-number">13</span>] = x29;</span> <span class="line" id="L1621"> out1[<span class="tok-number">14</span>] = x31;</span> <span class="line" id="L1622"> out1[<span class="tok-number">15</span>] = x32;</span> <span class="line" id="L1623"> out1[<span class="tok-number">16</span>] = x33;</span> <span class="line" id="L1624"> out1[<span class="tok-number">17</span>] = x35;</span> <span class="line" id="L1625"> out1[<span class="tok-number">18</span>] = x37;</span> <span class="line" id="L1626"> out1[<span class="tok-number">19</span>] = x39;</span> <span class="line" id="L1627"> out1[<span class="tok-number">20</span>] = x41;</span> <span class="line" id="L1628"> out1[<span class="tok-number">21</span>] = x43;</span> <span class="line" id="L1629"> out1[<span class="tok-number">22</span>] = x45;</span> <span class="line" id="L1630"> out1[<span class="tok-number">23</span>] = x46;</span> <span class="line" id="L1631"> out1[<span class="tok-number">24</span>] = x47;</span> <span class="line" id="L1632"> out1[<span class="tok-number">25</span>] = x49;</span> <span class="line" id="L1633"> out1[<span class="tok-number">26</span>] = x51;</span> <span class="line" id="L1634"> out1[<span class="tok-number">27</span>] = x53;</span> <span class="line" id="L1635"> out1[<span class="tok-number">28</span>] = x55;</span> <span class="line" id="L1636"> out1[<span class="tok-number">29</span>] = x57;</span> <span class="line" id="L1637"> out1[<span class="tok-number">30</span>] = x59;</span> <span class="line" id="L1638"> out1[<span class="tok-number">31</span>] = x60;</span> <span class="line" id="L1639">}</span> <span class="line" id="L1640"></span> <span class="line" id="L1641"><span class="tok-comment">/// The function fromBytes deserializes a field element NOT in the Montgomery domain from bytes in little-endian order.</span></span> <span class="line" id="L1642"><span class="tok-comment">///</span></span> <span class="line" id="L1643"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L1644"><span class="tok-comment">/// 0 ≤ bytes_eval arg1 < m</span></span> <span class="line" id="L1645"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L1646"><span class="tok-comment">/// eval out1 mod m = bytes_eval arg1 mod m</span></span> <span class="line" id="L1647"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L1648"><span class="tok-comment">///</span></span> <span class="line" id="L1649"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L1650"><span class="tok-comment">/// arg1: [[0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff], [0x0 ~> 0xff]]</span></span> <span class="line" id="L1651"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L1652"><span class="tok-comment">/// out1: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1653"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromBytes</span>(out1: [<span class="tok-number">4</span>]<span class="tok-type">u64</span>, arg1: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L1654"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L1655"></span> <span class="line" id="L1656"> <span class="tok-kw">const</span> x1 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">31</span>])) << <span class="tok-number">56</span>);</span> <span class="line" id="L1657"> <span class="tok-kw">const</span> x2 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">30</span>])) << <span class="tok-number">48</span>);</span> <span class="line" id="L1658"> <span class="tok-kw">const</span> x3 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">29</span>])) << <span class="tok-number">40</span>);</span> <span class="line" id="L1659"> <span class="tok-kw">const</span> x4 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">28</span>])) << <span class="tok-number">32</span>);</span> <span class="line" id="L1660"> <span class="tok-kw">const</span> x5 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">27</span>])) << <span class="tok-number">24</span>);</span> <span class="line" id="L1661"> <span class="tok-kw">const</span> x6 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">26</span>])) << <span class="tok-number">16</span>);</span> <span class="line" id="L1662"> <span class="tok-kw">const</span> x7 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">25</span>])) << <span class="tok-number">8</span>);</span> <span class="line" id="L1663"> <span class="tok-kw">const</span> x8 = (arg1[<span class="tok-number">24</span>]);</span> <span class="line" id="L1664"> <span class="tok-kw">const</span> x9 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">23</span>])) << <span class="tok-number">56</span>);</span> <span class="line" id="L1665"> <span class="tok-kw">const</span> x10 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">22</span>])) << <span class="tok-number">48</span>);</span> <span class="line" id="L1666"> <span class="tok-kw">const</span> x11 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">21</span>])) << <span class="tok-number">40</span>);</span> <span class="line" id="L1667"> <span class="tok-kw">const</span> x12 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">20</span>])) << <span class="tok-number">32</span>);</span> <span class="line" id="L1668"> <span class="tok-kw">const</span> x13 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">19</span>])) << <span class="tok-number">24</span>);</span> <span class="line" id="L1669"> <span class="tok-kw">const</span> x14 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">18</span>])) << <span class="tok-number">16</span>);</span> <span class="line" id="L1670"> <span class="tok-kw">const</span> x15 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">17</span>])) << <span class="tok-number">8</span>);</span> <span class="line" id="L1671"> <span class="tok-kw">const</span> x16 = (arg1[<span class="tok-number">16</span>]);</span> <span class="line" id="L1672"> <span class="tok-kw">const</span> x17 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">15</span>])) << <span class="tok-number">56</span>);</span> <span class="line" id="L1673"> <span class="tok-kw">const</span> x18 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">14</span>])) << <span class="tok-number">48</span>);</span> <span class="line" id="L1674"> <span class="tok-kw">const</span> x19 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">13</span>])) << <span class="tok-number">40</span>);</span> <span class="line" id="L1675"> <span class="tok-kw">const</span> x20 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">12</span>])) << <span class="tok-number">32</span>);</span> <span class="line" id="L1676"> <span class="tok-kw">const</span> x21 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">11</span>])) << <span class="tok-number">24</span>);</span> <span class="line" id="L1677"> <span class="tok-kw">const</span> x22 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">10</span>])) << <span class="tok-number">16</span>);</span> <span class="line" id="L1678"> <span class="tok-kw">const</span> x23 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">9</span>])) << <span class="tok-number">8</span>);</span> <span class="line" id="L1679"> <span class="tok-kw">const</span> x24 = (arg1[<span class="tok-number">8</span>]);</span> <span class="line" id="L1680"> <span class="tok-kw">const</span> x25 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">7</span>])) << <span class="tok-number">56</span>);</span> <span class="line" id="L1681"> <span class="tok-kw">const</span> x26 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">6</span>])) << <span class="tok-number">48</span>);</span> <span class="line" id="L1682"> <span class="tok-kw">const</span> x27 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">5</span>])) << <span class="tok-number">40</span>);</span> <span class="line" id="L1683"> <span class="tok-kw">const</span> x28 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">4</span>])) << <span class="tok-number">32</span>);</span> <span class="line" id="L1684"> <span class="tok-kw">const</span> x29 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">3</span>])) << <span class="tok-number">24</span>);</span> <span class="line" id="L1685"> <span class="tok-kw">const</span> x30 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">2</span>])) << <span class="tok-number">16</span>);</span> <span class="line" id="L1686"> <span class="tok-kw">const</span> x31 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, (arg1[<span class="tok-number">1</span>])) << <span class="tok-number">8</span>);</span> <span class="line" id="L1687"> <span class="tok-kw">const</span> x32 = (arg1[<span class="tok-number">0</span>]);</span> <span class="line" id="L1688"> <span class="tok-kw">const</span> x33 = (x31 + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x32));</span> <span class="line" id="L1689"> <span class="tok-kw">const</span> x34 = (x30 + x33);</span> <span class="line" id="L1690"> <span class="tok-kw">const</span> x35 = (x29 + x34);</span> <span class="line" id="L1691"> <span class="tok-kw">const</span> x36 = (x28 + x35);</span> <span class="line" id="L1692"> <span class="tok-kw">const</span> x37 = (x27 + x36);</span> <span class="line" id="L1693"> <span class="tok-kw">const</span> x38 = (x26 + x37);</span> <span class="line" id="L1694"> <span class="tok-kw">const</span> x39 = (x25 + x38);</span> <span class="line" id="L1695"> <span class="tok-kw">const</span> x40 = (x23 + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x24));</span> <span class="line" id="L1696"> <span class="tok-kw">const</span> x41 = (x22 + x40);</span> <span class="line" id="L1697"> <span class="tok-kw">const</span> x42 = (x21 + x41);</span> <span class="line" id="L1698"> <span class="tok-kw">const</span> x43 = (x20 + x42);</span> <span class="line" id="L1699"> <span class="tok-kw">const</span> x44 = (x19 + x43);</span> <span class="line" id="L1700"> <span class="tok-kw">const</span> x45 = (x18 + x44);</span> <span class="line" id="L1701"> <span class="tok-kw">const</span> x46 = (x17 + x45);</span> <span class="line" id="L1702"> <span class="tok-kw">const</span> x47 = (x15 + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x16));</span> <span class="line" id="L1703"> <span class="tok-kw">const</span> x48 = (x14 + x47);</span> <span class="line" id="L1704"> <span class="tok-kw">const</span> x49 = (x13 + x48);</span> <span class="line" id="L1705"> <span class="tok-kw">const</span> x50 = (x12 + x49);</span> <span class="line" id="L1706"> <span class="tok-kw">const</span> x51 = (x11 + x50);</span> <span class="line" id="L1707"> <span class="tok-kw">const</span> x52 = (x10 + x51);</span> <span class="line" id="L1708"> <span class="tok-kw">const</span> x53 = (x9 + x52);</span> <span class="line" id="L1709"> <span class="tok-kw">const</span> x54 = (x7 + <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x8));</span> <span class="line" id="L1710"> <span class="tok-kw">const</span> x55 = (x6 + x54);</span> <span class="line" id="L1711"> <span class="tok-kw">const</span> x56 = (x5 + x55);</span> <span class="line" id="L1712"> <span class="tok-kw">const</span> x57 = (x4 + x56);</span> <span class="line" id="L1713"> <span class="tok-kw">const</span> x58 = (x3 + x57);</span> <span class="line" id="L1714"> <span class="tok-kw">const</span> x59 = (x2 + x58);</span> <span class="line" id="L1715"> <span class="tok-kw">const</span> x60 = (x1 + x59);</span> <span class="line" id="L1716"> out1[<span class="tok-number">0</span>] = x39;</span> <span class="line" id="L1717"> out1[<span class="tok-number">1</span>] = x46;</span> <span class="line" id="L1718"> out1[<span class="tok-number">2</span>] = x53;</span> <span class="line" id="L1719"> out1[<span class="tok-number">3</span>] = x60;</span> <span class="line" id="L1720">}</span> <span class="line" id="L1721"></span> <span class="line" id="L1722"><span class="tok-comment">/// The function setOne returns the field element one in the Montgomery domain.</span></span> <span class="line" id="L1723"><span class="tok-comment">///</span></span> <span class="line" id="L1724"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L1725"><span class="tok-comment">/// eval (from_montgomery out1) mod m = 1 mod m</span></span> <span class="line" id="L1726"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L1727"><span class="tok-comment">///</span></span> <span class="line" id="L1728"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">setOne</span>(out1: MontgomeryDomainFieldElement) <span class="tok-type">void</span> {</span> <span class="line" id="L1729"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L1730"></span> <span class="line" id="L1731"> out1[<span class="tok-number">0</span>] = <span class="tok-number">0x402da1732fc9bebf</span>;</span> <span class="line" id="L1732"> out1[<span class="tok-number">1</span>] = <span class="tok-number">0x4551231950b75fc4</span>;</span> <span class="line" id="L1733"> out1[<span class="tok-number">2</span>] = <span class="tok-number">0x1</span>;</span> <span class="line" id="L1734"> out1[<span class="tok-number">3</span>] = <span class="tok-number">0x0</span>;</span> <span class="line" id="L1735">}</span> <span class="line" id="L1736"></span> <span class="line" id="L1737"><span class="tok-comment">/// The function msat returns the saturated representation of the prime modulus.</span></span> <span class="line" id="L1738"><span class="tok-comment">///</span></span> <span class="line" id="L1739"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L1740"><span class="tok-comment">/// twos_complement_eval out1 = m</span></span> <span class="line" id="L1741"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L1742"><span class="tok-comment">///</span></span> <span class="line" id="L1743"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L1744"><span class="tok-comment">/// out1: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1745"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">msat</span>(out1: [<span class="tok-number">5</span>]<span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L1746"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L1747"></span> <span class="line" id="L1748"> out1[<span class="tok-number">0</span>] = <span class="tok-number">0xbfd25e8cd0364141</span>;</span> <span class="line" id="L1749"> out1[<span class="tok-number">1</span>] = <span class="tok-number">0xbaaedce6af48a03b</span>;</span> <span class="line" id="L1750"> out1[<span class="tok-number">2</span>] = <span class="tok-number">0xfffffffffffffffe</span>;</span> <span class="line" id="L1751"> out1[<span class="tok-number">3</span>] = <span class="tok-number">0xffffffffffffffff</span>;</span> <span class="line" id="L1752"> out1[<span class="tok-number">4</span>] = <span class="tok-number">0x0</span>;</span> <span class="line" id="L1753">}</span> <span class="line" id="L1754"></span> <span class="line" id="L1755"><span class="tok-comment">/// The function divstep computes a divstep.</span></span> <span class="line" id="L1756"><span class="tok-comment">///</span></span> <span class="line" id="L1757"><span class="tok-comment">/// Preconditions:</span></span> <span class="line" id="L1758"><span class="tok-comment">/// 0 ≤ eval arg4 < m</span></span> <span class="line" id="L1759"><span class="tok-comment">/// 0 ≤ eval arg5 < m</span></span> <span class="line" id="L1760"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L1761"><span class="tok-comment">/// out1 = (if 0 < arg1 ∧ (twos_complement_eval arg3) is odd then 1 - arg1 else 1 + arg1)</span></span> <span class="line" id="L1762"><span class="tok-comment">/// twos_complement_eval out2 = (if 0 < arg1 ∧ (twos_complement_eval arg3) is odd then twos_complement_eval arg3 else twos_complement_eval arg2)</span></span> <span class="line" id="L1763"><span class="tok-comment">/// twos_complement_eval out3 = (if 0 < arg1 ∧ (twos_complement_eval arg3) is odd then ⌊(twos_complement_eval arg3 - twos_complement_eval arg2) / 2⌋ else ⌊(twos_complement_eval arg3 + (twos_complement_eval arg3 mod 2) * twos_complement_eval arg2) / 2⌋)</span></span> <span class="line" id="L1764"><span class="tok-comment">/// eval (from_montgomery out4) mod m = (if 0 < arg1 ∧ (twos_complement_eval arg3) is odd then (2 * eval (from_montgomery arg5)) mod m else (2 * eval (from_montgomery arg4)) mod m)</span></span> <span class="line" id="L1765"><span class="tok-comment">/// eval (from_montgomery out5) mod m = (if 0 < arg1 ∧ (twos_complement_eval arg3) is odd then (eval (from_montgomery arg4) - eval (from_montgomery arg4)) mod m else (eval (from_montgomery arg5) + (twos_complement_eval arg3 mod 2) * eval (from_montgomery arg4)) mod m)</span></span> <span class="line" id="L1766"><span class="tok-comment">/// 0 ≤ eval out5 < m</span></span> <span class="line" id="L1767"><span class="tok-comment">/// 0 ≤ eval out5 < m</span></span> <span class="line" id="L1768"><span class="tok-comment">/// 0 ≤ eval out2 < m</span></span> <span class="line" id="L1769"><span class="tok-comment">/// 0 ≤ eval out3 < m</span></span> <span class="line" id="L1770"><span class="tok-comment">///</span></span> <span class="line" id="L1771"><span class="tok-comment">/// Input Bounds:</span></span> <span class="line" id="L1772"><span class="tok-comment">/// arg1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L1773"><span class="tok-comment">/// arg2: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1774"><span class="tok-comment">/// arg3: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1775"><span class="tok-comment">/// arg4: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1776"><span class="tok-comment">/// arg5: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1777"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L1778"><span class="tok-comment">/// out1: [0x0 ~> 0xffffffffffffffff]</span></span> <span class="line" id="L1779"><span class="tok-comment">/// out2: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1780"><span class="tok-comment">/// out3: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1781"><span class="tok-comment">/// out4: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1782"><span class="tok-comment">/// out5: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L1783"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">divstep</span>(out1: <span class="tok-type">u64</span>, out2: [<span class="tok-number">5</span>]<span class="tok-type">u64</span>, out3: [<span class="tok-number">5</span>]<span class="tok-type">u64</span>, out4: [<span class="tok-number">4</span>]<span class="tok-type">u64</span>, out5: [<span class="tok-number">4</span>]<span class="tok-type">u64</span>, arg1: <span class="tok-type">u64</span>, arg2: [<span class="tok-number">5</span>]<span class="tok-type">u64</span>, arg3: [<span class="tok-number">5</span>]<span class="tok-type">u64</span>, arg4: [<span class="tok-number">4</span>]<span class="tok-type">u64</span>, arg5: [<span class="tok-number">4</span>]<span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L1784"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L1785"></span> <span class="line" id="L1786"> <span class="tok-kw">var</span> x1: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1787"> <span class="tok-kw">var</span> x2: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1788"> addcarryxU64(&x1, &x2, <span class="tok-number">0x0</span>, (~arg1), <span class="tok-number">0x1</span>);</span> <span class="line" id="L1789"> <span class="tok-kw">const</span> x3 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u1</span>, <span class="tok-builtin">@truncate</span>((x1 >> <span class="tok-number">63</span>))) & <span class="tok-builtin">@as</span>(<span class="tok-type">u1</span>, <span class="tok-builtin">@truncate</span>(((arg3[<span class="tok-number">0</span>]) & <span class="tok-number">0x1</span>))));</span> <span class="line" id="L1790"> <span class="tok-kw">var</span> x4: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1791"> <span class="tok-kw">var</span> x5: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1792"> addcarryxU64(&x4, &x5, <span class="tok-number">0x0</span>, (~arg1), <span class="tok-number">0x1</span>);</span> <span class="line" id="L1793"> <span class="tok-kw">var</span> x6: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1794"> cmovznzU64(&x6, x3, arg1, x4);</span> <span class="line" id="L1795"> <span class="tok-kw">var</span> x7: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1796"> cmovznzU64(&x7, x3, (arg2[<span class="tok-number">0</span>]), (arg3[<span class="tok-number">0</span>]));</span> <span class="line" id="L1797"> <span class="tok-kw">var</span> x8: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1798"> cmovznzU64(&x8, x3, (arg2[<span class="tok-number">1</span>]), (arg3[<span class="tok-number">1</span>]));</span> <span class="line" id="L1799"> <span class="tok-kw">var</span> x9: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1800"> cmovznzU64(&x9, x3, (arg2[<span class="tok-number">2</span>]), (arg3[<span class="tok-number">2</span>]));</span> <span class="line" id="L1801"> <span class="tok-kw">var</span> x10: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1802"> cmovznzU64(&x10, x3, (arg2[<span class="tok-number">3</span>]), (arg3[<span class="tok-number">3</span>]));</span> <span class="line" id="L1803"> <span class="tok-kw">var</span> x11: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1804"> cmovznzU64(&x11, x3, (arg2[<span class="tok-number">4</span>]), (arg3[<span class="tok-number">4</span>]));</span> <span class="line" id="L1805"> <span class="tok-kw">var</span> x12: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1806"> <span class="tok-kw">var</span> x13: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1807"> addcarryxU64(&x12, &x13, <span class="tok-number">0x0</span>, <span class="tok-number">0x1</span>, (~(arg2[<span class="tok-number">0</span>])));</span> <span class="line" id="L1808"> <span class="tok-kw">var</span> x14: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1809"> <span class="tok-kw">var</span> x15: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1810"> addcarryxU64(&x14, &x15, x13, <span class="tok-number">0x0</span>, (~(arg2[<span class="tok-number">1</span>])));</span> <span class="line" id="L1811"> <span class="tok-kw">var</span> x16: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1812"> <span class="tok-kw">var</span> x17: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1813"> addcarryxU64(&x16, &x17, x15, <span class="tok-number">0x0</span>, (~(arg2[<span class="tok-number">2</span>])));</span> <span class="line" id="L1814"> <span class="tok-kw">var</span> x18: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1815"> <span class="tok-kw">var</span> x19: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1816"> addcarryxU64(&x18, &x19, x17, <span class="tok-number">0x0</span>, (~(arg2[<span class="tok-number">3</span>])));</span> <span class="line" id="L1817"> <span class="tok-kw">var</span> x20: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1818"> <span class="tok-kw">var</span> x21: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1819"> addcarryxU64(&x20, &x21, x19, <span class="tok-number">0x0</span>, (~(arg2[<span class="tok-number">4</span>])));</span> <span class="line" id="L1820"> <span class="tok-kw">var</span> x22: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1821"> cmovznzU64(&x22, x3, (arg3[<span class="tok-number">0</span>]), x12);</span> <span class="line" id="L1822"> <span class="tok-kw">var</span> x23: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1823"> cmovznzU64(&x23, x3, (arg3[<span class="tok-number">1</span>]), x14);</span> <span class="line" id="L1824"> <span class="tok-kw">var</span> x24: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1825"> cmovznzU64(&x24, x3, (arg3[<span class="tok-number">2</span>]), x16);</span> <span class="line" id="L1826"> <span class="tok-kw">var</span> x25: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1827"> cmovznzU64(&x25, x3, (arg3[<span class="tok-number">3</span>]), x18);</span> <span class="line" id="L1828"> <span class="tok-kw">var</span> x26: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1829"> cmovznzU64(&x26, x3, (arg3[<span class="tok-number">4</span>]), x20);</span> <span class="line" id="L1830"> <span class="tok-kw">var</span> x27: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1831"> cmovznzU64(&x27, x3, (arg4[<span class="tok-number">0</span>]), (arg5[<span class="tok-number">0</span>]));</span> <span class="line" id="L1832"> <span class="tok-kw">var</span> x28: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1833"> cmovznzU64(&x28, x3, (arg4[<span class="tok-number">1</span>]), (arg5[<span class="tok-number">1</span>]));</span> <span class="line" id="L1834"> <span class="tok-kw">var</span> x29: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1835"> cmovznzU64(&x29, x3, (arg4[<span class="tok-number">2</span>]), (arg5[<span class="tok-number">2</span>]));</span> <span class="line" id="L1836"> <span class="tok-kw">var</span> x30: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1837"> cmovznzU64(&x30, x3, (arg4[<span class="tok-number">3</span>]), (arg5[<span class="tok-number">3</span>]));</span> <span class="line" id="L1838"> <span class="tok-kw">var</span> x31: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1839"> <span class="tok-kw">var</span> x32: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1840"> addcarryxU64(&x31, &x32, <span class="tok-number">0x0</span>, x27, x27);</span> <span class="line" id="L1841"> <span class="tok-kw">var</span> x33: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1842"> <span class="tok-kw">var</span> x34: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1843"> addcarryxU64(&x33, &x34, x32, x28, x28);</span> <span class="line" id="L1844"> <span class="tok-kw">var</span> x35: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1845"> <span class="tok-kw">var</span> x36: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1846"> addcarryxU64(&x35, &x36, x34, x29, x29);</span> <span class="line" id="L1847"> <span class="tok-kw">var</span> x37: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1848"> <span class="tok-kw">var</span> x38: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1849"> addcarryxU64(&x37, &x38, x36, x30, x30);</span> <span class="line" id="L1850"> <span class="tok-kw">var</span> x39: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1851"> <span class="tok-kw">var</span> x40: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1852"> subborrowxU64(&x39, &x40, <span class="tok-number">0x0</span>, x31, <span class="tok-number">0xbfd25e8cd0364141</span>);</span> <span class="line" id="L1853"> <span class="tok-kw">var</span> x41: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1854"> <span class="tok-kw">var</span> x42: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1855"> subborrowxU64(&x41, &x42, x40, x33, <span class="tok-number">0xbaaedce6af48a03b</span>);</span> <span class="line" id="L1856"> <span class="tok-kw">var</span> x43: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1857"> <span class="tok-kw">var</span> x44: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1858"> subborrowxU64(&x43, &x44, x42, x35, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L1859"> <span class="tok-kw">var</span> x45: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1860"> <span class="tok-kw">var</span> x46: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1861"> subborrowxU64(&x45, &x46, x44, x37, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1862"> <span class="tok-kw">var</span> x47: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1863"> <span class="tok-kw">var</span> x48: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1864"> subborrowxU64(&x47, &x48, x46, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x38), <span class="tok-number">0x0</span>);</span> <span class="line" id="L1865"> <span class="tok-kw">const</span> x49 = (arg4[<span class="tok-number">3</span>]);</span> <span class="line" id="L1866"> <span class="tok-kw">const</span> x50 = (arg4[<span class="tok-number">2</span>]);</span> <span class="line" id="L1867"> <span class="tok-kw">const</span> x51 = (arg4[<span class="tok-number">1</span>]);</span> <span class="line" id="L1868"> <span class="tok-kw">const</span> x52 = (arg4[<span class="tok-number">0</span>]);</span> <span class="line" id="L1869"> <span class="tok-kw">var</span> x53: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1870"> <span class="tok-kw">var</span> x54: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1871"> subborrowxU64(&x53, &x54, <span class="tok-number">0x0</span>, <span class="tok-number">0x0</span>, x52);</span> <span class="line" id="L1872"> <span class="tok-kw">var</span> x55: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1873"> <span class="tok-kw">var</span> x56: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1874"> subborrowxU64(&x55, &x56, x54, <span class="tok-number">0x0</span>, x51);</span> <span class="line" id="L1875"> <span class="tok-kw">var</span> x57: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1876"> <span class="tok-kw">var</span> x58: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1877"> subborrowxU64(&x57, &x58, x56, <span class="tok-number">0x0</span>, x50);</span> <span class="line" id="L1878"> <span class="tok-kw">var</span> x59: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1879"> <span class="tok-kw">var</span> x60: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1880"> subborrowxU64(&x59, &x60, x58, <span class="tok-number">0x0</span>, x49);</span> <span class="line" id="L1881"> <span class="tok-kw">var</span> x61: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1882"> cmovznzU64(&x61, x60, <span class="tok-number">0x0</span>, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1883"> <span class="tok-kw">var</span> x62: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1884"> <span class="tok-kw">var</span> x63: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1885"> addcarryxU64(&x62, &x63, <span class="tok-number">0x0</span>, x53, (x61 & <span class="tok-number">0xbfd25e8cd0364141</span>));</span> <span class="line" id="L1886"> <span class="tok-kw">var</span> x64: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1887"> <span class="tok-kw">var</span> x65: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1888"> addcarryxU64(&x64, &x65, x63, x55, (x61 & <span class="tok-number">0xbaaedce6af48a03b</span>));</span> <span class="line" id="L1889"> <span class="tok-kw">var</span> x66: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1890"> <span class="tok-kw">var</span> x67: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1891"> addcarryxU64(&x66, &x67, x65, x57, (x61 & <span class="tok-number">0xfffffffffffffffe</span>));</span> <span class="line" id="L1892"> <span class="tok-kw">var</span> x68: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1893"> <span class="tok-kw">var</span> x69: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1894"> addcarryxU64(&x68, &x69, x67, x59, x61);</span> <span class="line" id="L1895"> <span class="tok-kw">var</span> x70: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1896"> cmovznzU64(&x70, x3, (arg5[<span class="tok-number">0</span>]), x62);</span> <span class="line" id="L1897"> <span class="tok-kw">var</span> x71: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1898"> cmovznzU64(&x71, x3, (arg5[<span class="tok-number">1</span>]), x64);</span> <span class="line" id="L1899"> <span class="tok-kw">var</span> x72: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1900"> cmovznzU64(&x72, x3, (arg5[<span class="tok-number">2</span>]), x66);</span> <span class="line" id="L1901"> <span class="tok-kw">var</span> x73: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1902"> cmovznzU64(&x73, x3, (arg5[<span class="tok-number">3</span>]), x68);</span> <span class="line" id="L1903"> <span class="tok-kw">const</span> x74 = <span class="tok-builtin">@as</span>(<span class="tok-type">u1</span>, <span class="tok-builtin">@truncate</span>((x22 & <span class="tok-number">0x1</span>)));</span> <span class="line" id="L1904"> <span class="tok-kw">var</span> x75: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1905"> cmovznzU64(&x75, x74, <span class="tok-number">0x0</span>, x7);</span> <span class="line" id="L1906"> <span class="tok-kw">var</span> x76: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1907"> cmovznzU64(&x76, x74, <span class="tok-number">0x0</span>, x8);</span> <span class="line" id="L1908"> <span class="tok-kw">var</span> x77: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1909"> cmovznzU64(&x77, x74, <span class="tok-number">0x0</span>, x9);</span> <span class="line" id="L1910"> <span class="tok-kw">var</span> x78: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1911"> cmovznzU64(&x78, x74, <span class="tok-number">0x0</span>, x10);</span> <span class="line" id="L1912"> <span class="tok-kw">var</span> x79: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1913"> cmovznzU64(&x79, x74, <span class="tok-number">0x0</span>, x11);</span> <span class="line" id="L1914"> <span class="tok-kw">var</span> x80: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1915"> <span class="tok-kw">var</span> x81: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1916"> addcarryxU64(&x80, &x81, <span class="tok-number">0x0</span>, x22, x75);</span> <span class="line" id="L1917"> <span class="tok-kw">var</span> x82: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1918"> <span class="tok-kw">var</span> x83: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1919"> addcarryxU64(&x82, &x83, x81, x23, x76);</span> <span class="line" id="L1920"> <span class="tok-kw">var</span> x84: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1921"> <span class="tok-kw">var</span> x85: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1922"> addcarryxU64(&x84, &x85, x83, x24, x77);</span> <span class="line" id="L1923"> <span class="tok-kw">var</span> x86: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1924"> <span class="tok-kw">var</span> x87: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1925"> addcarryxU64(&x86, &x87, x85, x25, x78);</span> <span class="line" id="L1926"> <span class="tok-kw">var</span> x88: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1927"> <span class="tok-kw">var</span> x89: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1928"> addcarryxU64(&x88, &x89, x87, x26, x79);</span> <span class="line" id="L1929"> <span class="tok-kw">var</span> x90: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1930"> cmovznzU64(&x90, x74, <span class="tok-number">0x0</span>, x27);</span> <span class="line" id="L1931"> <span class="tok-kw">var</span> x91: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1932"> cmovznzU64(&x91, x74, <span class="tok-number">0x0</span>, x28);</span> <span class="line" id="L1933"> <span class="tok-kw">var</span> x92: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1934"> cmovznzU64(&x92, x74, <span class="tok-number">0x0</span>, x29);</span> <span class="line" id="L1935"> <span class="tok-kw">var</span> x93: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1936"> cmovznzU64(&x93, x74, <span class="tok-number">0x0</span>, x30);</span> <span class="line" id="L1937"> <span class="tok-kw">var</span> x94: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1938"> <span class="tok-kw">var</span> x95: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1939"> addcarryxU64(&x94, &x95, <span class="tok-number">0x0</span>, x70, x90);</span> <span class="line" id="L1940"> <span class="tok-kw">var</span> x96: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1941"> <span class="tok-kw">var</span> x97: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1942"> addcarryxU64(&x96, &x97, x95, x71, x91);</span> <span class="line" id="L1943"> <span class="tok-kw">var</span> x98: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1944"> <span class="tok-kw">var</span> x99: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1945"> addcarryxU64(&x98, &x99, x97, x72, x92);</span> <span class="line" id="L1946"> <span class="tok-kw">var</span> x100: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1947"> <span class="tok-kw">var</span> x101: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1948"> addcarryxU64(&x100, &x101, x99, x73, x93);</span> <span class="line" id="L1949"> <span class="tok-kw">var</span> x102: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1950"> <span class="tok-kw">var</span> x103: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1951"> subborrowxU64(&x102, &x103, <span class="tok-number">0x0</span>, x94, <span class="tok-number">0xbfd25e8cd0364141</span>);</span> <span class="line" id="L1952"> <span class="tok-kw">var</span> x104: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1953"> <span class="tok-kw">var</span> x105: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1954"> subborrowxU64(&x104, &x105, x103, x96, <span class="tok-number">0xbaaedce6af48a03b</span>);</span> <span class="line" id="L1955"> <span class="tok-kw">var</span> x106: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1956"> <span class="tok-kw">var</span> x107: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1957"> subborrowxU64(&x106, &x107, x105, x98, <span class="tok-number">0xfffffffffffffffe</span>);</span> <span class="line" id="L1958"> <span class="tok-kw">var</span> x108: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1959"> <span class="tok-kw">var</span> x109: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1960"> subborrowxU64(&x108, &x109, x107, x100, <span class="tok-number">0xffffffffffffffff</span>);</span> <span class="line" id="L1961"> <span class="tok-kw">var</span> x110: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1962"> <span class="tok-kw">var</span> x111: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1963"> subborrowxU64(&x110, &x111, x109, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, x101), <span class="tok-number">0x0</span>);</span> <span class="line" id="L1964"> <span class="tok-kw">var</span> x112: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1965"> <span class="tok-kw">var</span> x113: <span class="tok-type">u1</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1966"> addcarryxU64(&x112, &x113, <span class="tok-number">0x0</span>, x6, <span class="tok-number">0x1</span>);</span> <span class="line" id="L1967"> <span class="tok-kw">const</span> x114 = ((x80 >> <span class="tok-number">1</span>) \| ((x82 << <span class="tok-number">63</span>) & <span class="tok-number">0xffffffffffffffff</span>));</span> <span class="line" id="L1968"> <span class="tok-kw">const</span> x115 = ((x82 >> <span class="tok-number">1</span>) \| ((x84 << <span class="tok-number">63</span>) & <span class="tok-number">0xffffffffffffffff</span>));</span> <span class="line" id="L1969"> <span class="tok-kw">const</span> x116 = ((x84 >> <span class="tok-number">1</span>) \| ((x86 << <span class="tok-number">63</span>) & <span class="tok-number">0xffffffffffffffff</span>));</span> <span class="line" id="L1970"> <span class="tok-kw">const</span> x117 = ((x86 >> <span class="tok-number">1</span>) \| ((x88 << <span class="tok-number">63</span>) & <span class="tok-number">0xffffffffffffffff</span>));</span> <span class="line" id="L1971"> <span class="tok-kw">const</span> x118 = ((x88 & <span class="tok-number">0x8000000000000000</span>) \| (x88 >> <span class="tok-number">1</span>));</span> <span class="line" id="L1972"> <span class="tok-kw">var</span> x119: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1973"> cmovznzU64(&x119, x48, x39, x31);</span> <span class="line" id="L1974"> <span class="tok-kw">var</span> x120: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1975"> cmovznzU64(&x120, x48, x41, x33);</span> <span class="line" id="L1976"> <span class="tok-kw">var</span> x121: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1977"> cmovznzU64(&x121, x48, x43, x35);</span> <span class="line" id="L1978"> <span class="tok-kw">var</span> x122: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1979"> cmovznzU64(&x122, x48, x45, x37);</span> <span class="line" id="L1980"> <span class="tok-kw">var</span> x123: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1981"> cmovznzU64(&x123, x111, x102, x94);</span> <span class="line" id="L1982"> <span class="tok-kw">var</span> x124: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1983"> cmovznzU64(&x124, x111, x104, x96);</span> <span class="line" id="L1984"> <span class="tok-kw">var</span> x125: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1985"> cmovznzU64(&x125, x111, x106, x98);</span> <span class="line" id="L1986"> <span class="tok-kw">var</span> x126: <span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1987"> cmovznzU64(&x126, x111, x108, x100);</span> <span class="line" id="L1988"> out1. = x112;</span> <span class="line" id="L1989"> out2[<span class="tok-number">0</span>] = x7;</span> <span class="line" id="L1990"> out2[<span class="tok-number">1</span>] = x8;</span> <span class="line" id="L1991"> out2[<span class="tok-number">2</span>] = x9;</span> <span class="line" id="L1992"> out2[<span class="tok-number">3</span>] = x10;</span> <span class="line" id="L1993"> out2[<span class="tok-number">4</span>] = x11;</span> <span class="line" id="L1994"> out3[<span class="tok-number">0</span>] = x114;</span> <span class="line" id="L1995"> out3[<span class="tok-number">1</span>] = x115;</span> <span class="line" id="L1996"> out3[<span class="tok-number">2</span>] = x116;</span> <span class="line" id="L1997"> out3[<span class="tok-number">3</span>] = x117;</span> <span class="line" id="L1998"> out3[<span class="tok-number">4</span>] = x118;</span> <span class="line" id="L1999"> out4[<span class="tok-number">0</span>] = x119;</span> <span class="line" id="L2000"> out4[<span class="tok-number">1</span>] = x120;</span> <span class="line" id="L2001"> out4[<span class="tok-number">2</span>] = x121;</span> <span class="line" id="L2002"> out4[<span class="tok-number">3</span>] = x122;</span> <span class="line" id="L2003"> out5[<span class="tok-number">0</span>] = x123;</span> <span class="line" id="L2004"> out5[<span class="tok-number">1</span>] = x124;</span> <span class="line" id="L2005"> out5[<span class="tok-number">2</span>] = x125;</span> <span class="line" id="L2006"> out5[<span class="tok-number">3</span>] = x126;</span> <span class="line" id="L2007">}</span> <span class="line" id="L2008"></span> <span class="line" id="L2009"><span class="tok-comment">/// The function divstepPrecomp returns the precomputed value for Bernstein-Yang-inversion (in montgomery form).</span></span> <span class="line" id="L2010"><span class="tok-comment">///</span></span> <span class="line" id="L2011"><span class="tok-comment">/// Postconditions:</span></span> <span class="line" id="L2012"><span class="tok-comment">/// eval (from_montgomery out1) = ⌊(m - 1) / 2⌋^(if ⌊log2 m⌋ + 1 < 46 then ⌊(49 * (⌊log2 m⌋ + 1) + 80) / 17⌋ else ⌊(49 * (⌊log2 m⌋ + 1) + 57) / 17⌋)</span></span> <span class="line" id="L2013"><span class="tok-comment">/// 0 ≤ eval out1 < m</span></span> <span class="line" id="L2014"><span class="tok-comment">///</span></span> <span class="line" id="L2015"><span class="tok-comment">/// Output Bounds:</span></span> <span class="line" id="L2016"><span class="tok-comment">/// out1: [[0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff], [0x0 ~> 0xffffffffffffffff]]</span></span> <span class="line" id="L2017"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">divstepPrecomp</span>(out1: *[<span class="tok-number">4</span>]<span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L2018"> <span class="tok-builtin">@setRuntimeSafety</span>(mode == .Debug);</span> <span class="line" id="L2019"></span> <span class="line" id="L2020"> out1[<span class="tok-number">0</span>] = <span class="tok-number">0xd7431a4d2b9cb4e9</span>;</span> <span class="line" id="L2021"> out1[<span class="tok-number">1</span>] = <span class="tok-number">0xab67d35a32d9c503</span>;</span> <span class="line" id="L2022"> out1[<span class="tok-number">2</span>] = <span class="tok-number">0xadf6c7e5859ce35f</span>;</span> <span class="line" id="L2023"> out1[<span class="tok-number">3</span>] = <span class="tok-number">0x615441451df6c379</span>;</span> <span class="line" id="L2024">}</span> <span class="line" id="L2025"></span> </code></pre></body> </html>
repos/yazap/docs/src/std/crypto	repos/yazap/docs/src/std/crypto/25519/scalar.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/25519/scalar.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> crypto = std.crypto;</span> <span class="line" id="L3"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L4"></span> <span class="line" id="L5"><span class="tok-kw">const</span> NonCanonicalError = std.crypto.errors.NonCanonicalError;</span> <span class="line" id="L6"></span> <span class="line" id="L7"><span class="tok-comment">/// The scalar field order.</span></span> <span class="line" id="L8"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> field_order: <span class="tok-type">u256</span> = <span class="tok-number">7237005577332262213973186563042994240857116359379907606001950938285454250989</span>;</span> <span class="line" id="L9"></span> <span class="line" id="L10"><span class="tok-comment">/// A compressed scalar</span></span> <span class="line" id="L11"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> CompressedScalar = [<span class="tok-number">32</span>]<span class="tok-type">u8</span>;</span> <span class="line" id="L12"></span> <span class="line" id="L13"><span class="tok-comment">/// Zero</span></span> <span class="line" id="L14"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> zero = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} ** <span class="tok-number">32</span>;</span> <span class="line" id="L15"></span> <span class="line" id="L16"><span class="tok-kw">const</span> field_order_s = s: {</span> <span class="line" id="L17"> <span class="tok-kw">var</span> s: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L18"> mem.writeIntLittle(<span class="tok-type">u256</span>, &s, field_order);</span> <span class="line" id="L19"> <span class="tok-kw">break</span> :s s;</span> <span class="line" id="L20">};</span> <span class="line" id="L21"></span> <span class="line" id="L22"><span class="tok-comment">/// Reject a scalar whose encoding is not canonical.</span></span> <span class="line" id="L23"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">rejectNonCanonical</span>(s: CompressedScalar) NonCanonicalError!<span class="tok-type">void</span> {</span> <span class="line" id="L24"> <span class="tok-kw">var</span> c: <span class="tok-type">u8</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L25"> <span class="tok-kw">var</span> n: <span class="tok-type">u8</span> = <span class="tok-number">1</span>;</span> <span class="line" id="L26"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">31</span>;</span> <span class="line" id="L27"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) : (i -= <span class="tok-number">1</span>) {</span> <span class="line" id="L28"> <span class="tok-kw">const</span> xs = <span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, s[i]);</span> <span class="line" id="L29"> <span class="tok-kw">const</span> xfield_order_s = <span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, field_order_s[i]);</span> <span class="line" id="L30"> c \|= <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>(((xs -% xfield_order_s) >> <span class="tok-number">8</span>) & n));</span> <span class="line" id="L31"> n &= <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>(((xs ^ xfield_order_s) -% <span class="tok-number">1</span>) >> <span class="tok-number">8</span>));</span> <span class="line" id="L32"> <span class="tok-kw">if</span> (i == <span class="tok-number">0</span>) <span class="tok-kw">break</span>;</span> <span class="line" id="L33"> }</span> <span class="line" id="L34"> <span class="tok-kw">if</span> (c == <span class="tok-number">0</span>) {</span> <span class="line" id="L35"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.NonCanonical;</span> <span class="line" id="L36"> }</span> <span class="line" id="L37">}</span> <span class="line" id="L38"></span> <span class="line" id="L39"><span class="tok-comment">/// Reduce a scalar to the field size.</span></span> <span class="line" id="L40"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">reduce</span>(s: CompressedScalar) CompressedScalar {</span> <span class="line" id="L41"> <span class="tok-kw">var</span> scalar = Scalar.fromBytes(s);</span> <span class="line" id="L42"> <span class="tok-kw">return</span> scalar.toBytes();</span> <span class="line" id="L43">}</span> <span class="line" id="L44"></span> <span class="line" id="L45"><span class="tok-comment">/// Reduce a 64-bytes scalar to the field size.</span></span> <span class="line" id="L46"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">reduce64</span>(s: [<span class="tok-number">64</span>]<span class="tok-type">u8</span>) CompressedScalar {</span> <span class="line" id="L47"> <span class="tok-kw">var</span> scalar = ScalarDouble.fromBytes64(s);</span> <span class="line" id="L48"> <span class="tok-kw">return</span> scalar.toBytes();</span> <span class="line" id="L49">}</span> <span class="line" id="L50"></span> <span class="line" id="L51"><span class="tok-comment">/// Perform the X25519 "clamping" operation.</span></span> <span class="line" id="L52"><span class="tok-comment">/// The scalar is then guaranteed to be a multiple of the cofactor.</span></span> <span class="line" id="L53"><span class="tok-kw">pub</span> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">clamp</span>(s: CompressedScalar) <span class="tok-type">void</span> {</span> <span class="line" id="L54"> s[<span class="tok-number">0</span>] &= <span class="tok-number">248</span>;</span> <span class="line" id="L55"> s[<span class="tok-number">31</span>] = (s[<span class="tok-number">31</span>] & <span class="tok-number">127</span>) \| <span class="tok-number">64</span>;</span> <span class="line" id="L56">}</span> <span class="line" id="L57"></span> <span class="line" id="L58"><span class="tok-comment">/// Return ab (mod L)</span></span> <span class="line" id="L59"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">mul</span>(a: CompressedScalar, b: CompressedScalar) CompressedScalar {</span> <span class="line" id="L60"> <span class="tok-kw">return</span> Scalar.fromBytes(a).mul(Scalar.fromBytes(b)).toBytes();</span> <span class="line" id="L61">}</span> <span class="line" id="L62"></span> <span class="line" id="L63"><span class="tok-comment">/// Return ab+c (mod L)</span></span> <span class="line" id="L64"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">mulAdd</span>(a: CompressedScalar, b: CompressedScalar, c: CompressedScalar) CompressedScalar {</span> <span class="line" id="L65"> <span class="tok-kw">return</span> Scalar.fromBytes(a).mul(Scalar.fromBytes(b)).add(Scalar.fromBytes(c)).toBytes();</span> <span class="line" id="L66">}</span> <span class="line" id="L67"></span> <span class="line" id="L68"><span class="tok-comment">/// Return a8 (mod L)</span></span> <span class="line" id="L69"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">mul8</span>(s: CompressedScalar) CompressedScalar {</span> <span class="line" id="L70"> <span class="tok-kw">var</span> x = Scalar.fromBytes(s);</span> <span class="line" id="L71"> x = x.add(x);</span> <span class="line" id="L72"> x = x.add(x);</span> <span class="line" id="L73"> x = x.add(x);</span> <span class="line" id="L74"> <span class="tok-kw">return</span> x.toBytes();</span> <span class="line" id="L75">}</span> <span class="line" id="L76"></span> <span class="line" id="L77"><span class="tok-comment">/// Return a+b (mod L)</span></span> <span class="line" id="L78"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">add</span>(a: CompressedScalar, b: CompressedScalar) CompressedScalar {</span> <span class="line" id="L79"> <span class="tok-kw">return</span> Scalar.fromBytes(a).add(Scalar.fromBytes(b)).toBytes();</span> <span class="line" id="L80">}</span> <span class="line" id="L81"></span> <span class="line" id="L82"><span class="tok-comment">/// Return -s (mod L)</span></span> <span class="line" id="L83"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">neg</span>(s: CompressedScalar) CompressedScalar {</span> <span class="line" id="L84"> <span class="tok-kw">const</span> fs: [<span class="tok-number">64</span>]<span class="tok-type">u8</span> = field_order_s ++ [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} ** <span class="tok-number">32</span>;</span> <span class="line" id="L85"> <span class="tok-kw">var</span> sx: [<span class="tok-number">64</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L86"> sx[<span class="tok-number">0</span>..<span class="tok-number">32</span>].* = s;</span> <span class="line" id="L87"> <span class="tok-builtin">@memset</span>(sx[<span class="tok-number">32</span>..], <span class="tok-number">0</span>);</span> <span class="line" id="L88"> <span class="tok-kw">var</span> carry: <span class="tok-type">u32</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L89"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L90"> <span class="tok-kw">while</span> (i < <span class="tok-number">64</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L91"> carry = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, fs[i]) -% sx[i] -% <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, carry);</span> <span class="line" id="L92"> sx[i] = <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@truncate</span>(carry));</span> <span class="line" id="L93"> carry = (carry >> <span class="tok-number">8</span>) & <span class="tok-number">1</span>;</span> <span class="line" id="L94"> }</span> <span class="line" id="L95"> <span class="tok-kw">return</span> reduce64(sx);</span> <span class="line" id="L96">}</span> <span class="line" id="L97"></span> <span class="line" id="L98"><span class="tok-comment">/// Return (a-b) (mod L)</span></span> <span class="line" id="L99"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">sub</span>(a: CompressedScalar, b: CompressedScalar) CompressedScalar {</span> <span class="line" id="L100"> <span class="tok-kw">return</span> add(a, neg(b));</span> <span class="line" id="L101">}</span> <span class="line" id="L102"></span> <span class="line" id="L103"><span class="tok-comment">/// Return a random scalar < L</span></span> <span class="line" id="L104"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">random</span>() CompressedScalar {</span> <span class="line" id="L105"> <span class="tok-kw">return</span> Scalar.random().toBytes();</span> <span class="line" id="L106">}</span> <span class="line" id="L107"></span> <span class="line" id="L108"><span class="tok-comment">/// A scalar in unpacked representation</span></span> <span class="line" id="L109"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Scalar = <span class="tok-kw">struct</span> {</span> <span class="line" id="L110"> <span class="tok-kw">const</span> Limbs = [<span class="tok-number">5</span>]<span class="tok-type">u64</span>;</span> <span class="line" id="L111"> limbs: Limbs = <span class="tok-null">undefined</span>,</span> <span class="line" id="L112"></span> <span class="line" id="L113"> <span class="tok-comment">/// Unpack a 32-byte representation of a scalar</span></span> <span class="line" id="L114"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromBytes</span>(bytes: CompressedScalar) Scalar {</span> <span class="line" id="L115"> <span class="tok-kw">var</span> scalar = ScalarDouble.fromBytes32(bytes);</span> <span class="line" id="L116"> <span class="tok-kw">return</span> scalar.reduce(<span class="tok-number">5</span>);</span> <span class="line" id="L117"> }</span> <span class="line" id="L118"></span> <span class="line" id="L119"> <span class="tok-comment">/// Unpack a 64-byte representation of a scalar</span></span> <span class="line" id="L120"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromBytes64</span>(bytes: [<span class="tok-number">64</span>]<span class="tok-type">u8</span>) Scalar {</span> <span class="line" id="L121"> <span class="tok-kw">var</span> scalar = ScalarDouble.fromBytes64(bytes);</span> <span class="line" id="L122"> <span class="tok-kw">return</span> scalar.reduce(<span class="tok-number">5</span>);</span> <span class="line" id="L123"> }</span> <span class="line" id="L124"></span> <span class="line" id="L125"> <span class="tok-comment">/// Pack a scalar into bytes</span></span> <span class="line" id="L126"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toBytes</span>(expanded: <span class="tok-kw">const</span> Scalar) CompressedScalar {</span> <span class="line" id="L127"> <span class="tok-kw">var</span> bytes: CompressedScalar = <span class="tok-null">undefined</span>;</span> <span class="line" id="L128"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L129"> <span class="tok-kw">while</span> (i < <span class="tok-number">4</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L130"> mem.writeIntLittle(<span class="tok-type">u64</span>, bytes[i <span class="tok-number">7</span> ..][<span class="tok-number">0</span>..<span class="tok-number">8</span>], expanded.limbs[i]);</span> <span class="line" id="L131"> }</span> <span class="line" id="L132"> mem.writeIntLittle(<span class="tok-type">u32</span>, bytes[i * <span class="tok-number">7</span> ..][<span class="tok-number">0</span>..<span class="tok-number">4</span>], <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(expanded.limbs[i])));</span> <span class="line" id="L133"> <span class="tok-kw">return</span> bytes;</span> <span class="line" id="L134"> }</span> <span class="line" id="L135"></span> <span class="line" id="L136"> <span class="tok-comment">/// Return true if the scalar is zero</span></span> <span class="line" id="L137"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">isZero</span>(n: Scalar) <span class="tok-type">bool</span> {</span> <span class="line" id="L138"> <span class="tok-kw">const</span> limbs = n.limbs;</span> <span class="line" id="L139"> <span class="tok-kw">return</span> (limbs[<span class="tok-number">0</span>] \| limbs[<span class="tok-number">1</span>] \| limbs[<span class="tok-number">2</span>] \| limbs[<span class="tok-number">3</span>] \| limbs[<span class="tok-number">4</span>]) == <span class="tok-number">0</span>;</span> <span class="line" id="L140"> }</span> <span class="line" id="L141"></span> <span class="line" id="L142"> <span class="tok-comment">/// Return x+y (mod L)</span></span> <span class="line" id="L143"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">add</span>(x: Scalar, y: Scalar) Scalar {</span> <span class="line" id="L144"> <span class="tok-kw">const</span> carry0 = (x.limbs[<span class="tok-number">0</span>] + y.limbs[<span class="tok-number">0</span>]) >> <span class="tok-number">56</span>;</span> <span class="line" id="L145"> <span class="tok-kw">const</span> t0 = (x.limbs[<span class="tok-number">0</span>] + y.limbs[<span class="tok-number">0</span>]) & <span class="tok-number">0xffffffffffffff</span>;</span> <span class="line" id="L146"> <span class="tok-kw">const</span> t00 = t0;</span> <span class="line" id="L147"> <span class="tok-kw">const</span> c0 = carry0;</span> <span class="line" id="L148"> <span class="tok-kw">const</span> carry1 = (x.limbs[<span class="tok-number">1</span>] + y.limbs[<span class="tok-number">1</span>] + c0) >> <span class="tok-number">56</span>;</span> <span class="line" id="L149"> <span class="tok-kw">const</span> t1 = (x.limbs[<span class="tok-number">1</span>] + y.limbs[<span class="tok-number">1</span>] + c0) & <span class="tok-number">0xffffffffffffff</span>;</span> <span class="line" id="L150"> <span class="tok-kw">const</span> t10 = t1;</span> <span class="line" id="L151"> <span class="tok-kw">const</span> c1 = carry1;</span> <span class="line" id="L152"> <span class="tok-kw">const</span> carry2 = (x.limbs[<span class="tok-number">2</span>] + y.limbs[<span class="tok-number">2</span>] + c1) >> <span class="tok-number">56</span>;</span> <span class="line" id="L153"> <span class="tok-kw">const</span> t2 = (x.limbs[<span class="tok-number">2</span>] + y.limbs[<span class="tok-number">2</span>] + c1) & <span class="tok-number">0xffffffffffffff</span>;</span> <span class="line" id="L154"> <span class="tok-kw">const</span> t20 = t2;</span> <span class="line" id="L155"> <span class="tok-kw">const</span> c2 = carry2;</span> <span class="line" id="L156"> <span class="tok-kw">const</span> carry = (x.limbs[<span class="tok-number">3</span>] + y.limbs[<span class="tok-number">3</span>] + c2) >> <span class="tok-number">56</span>;</span> <span class="line" id="L157"> <span class="tok-kw">const</span> t3 = (x.limbs[<span class="tok-number">3</span>] + y.limbs[<span class="tok-number">3</span>] + c2) & <span class="tok-number">0xffffffffffffff</span>;</span> <span class="line" id="L158"> <span class="tok-kw">const</span> t30 = t3;</span> <span class="line" id="L159"> <span class="tok-kw">const</span> c3 = carry;</span> <span class="line" id="L160"> <span class="tok-kw">const</span> t4 = x.limbs[<span class="tok-number">4</span>] + y.limbs[<span class="tok-number">4</span>] + c3;</span> <span class="line" id="L161"></span> <span class="line" id="L162"> <span class="tok-kw">const</span> y01: <span class="tok-type">u64</span> = <span class="tok-number">5175514460705773</span>;</span> <span class="line" id="L163"> <span class="tok-kw">const</span> y11: <span class="tok-type">u64</span> = <span class="tok-number">70332060721272408</span>;</span> <span class="line" id="L164"> <span class="tok-kw">const</span> y21: <span class="tok-type">u64</span> = <span class="tok-number">5342</span>;</span> <span class="line" id="L165"> <span class="tok-kw">const</span> y31: <span class="tok-type">u64</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L166"> <span class="tok-kw">const</span> y41: <span class="tok-type">u64</span> = <span class="tok-number">268435456</span>;</span> <span class="line" id="L167"></span> <span class="line" id="L168"> <span class="tok-kw">const</span> b5 = (t00 -% y01) >> <span class="tok-number">63</span>;</span> <span class="line" id="L169"> <span class="tok-kw">const</span> t5 = ((b5 << <span class="tok-number">56</span>) + t00) -% y01;</span> <span class="line" id="L170"> <span class="tok-kw">const</span> b0 = b5;</span> <span class="line" id="L171"> <span class="tok-kw">const</span> t01 = t5;</span> <span class="line" id="L172"> <span class="tok-kw">const</span> b6 = (t10 -% (y11 + b0)) >> <span class="tok-number">63</span>;</span> <span class="line" id="L173"> <span class="tok-kw">const</span> t6 = ((b6 << <span class="tok-number">56</span>) + t10) -% (y11 + b0);</span> <span class="line" id="L174"> <span class="tok-kw">const</span> b1 = b6;</span> <span class="line" id="L175"> <span class="tok-kw">const</span> t11 = t6;</span> <span class="line" id="L176"> <span class="tok-kw">const</span> b7 = (t20 -% (y21 + b1)) >> <span class="tok-number">63</span>;</span> <span class="line" id="L177"> <span class="tok-kw">const</span> t7 = ((b7 << <span class="tok-number">56</span>) + t20) -% (y21 + b1);</span> <span class="line" id="L178"> <span class="tok-kw">const</span> b2 = b7;</span> <span class="line" id="L179"> <span class="tok-kw">const</span> t21 = t7;</span> <span class="line" id="L180"> <span class="tok-kw">const</span> b8 = (t30 -% (y31 + b2)) >> <span class="tok-number">63</span>;</span> <span class="line" id="L181"> <span class="tok-kw">const</span> t8 = ((b8 << <span class="tok-number">56</span>) + t30) -% (y31 + b2);</span> <span class="line" id="L182"> <span class="tok-kw">const</span> b3 = b8;</span> <span class="line" id="L183"> <span class="tok-kw">const</span> t31 = t8;</span> <span class="line" id="L184"> <span class="tok-kw">const</span> b = (t4 -% (y41 + b3)) >> <span class="tok-number">63</span>;</span> <span class="line" id="L185"> <span class="tok-kw">const</span> t = ((b << <span class="tok-number">56</span>) + t4) -% (y41 + b3);</span> <span class="line" id="L186"> <span class="tok-kw">const</span> b4 = b;</span> <span class="line" id="L187"> <span class="tok-kw">const</span> t41 = t;</span> <span class="line" id="L188"></span> <span class="line" id="L189"> <span class="tok-kw">const</span> mask = (b4 -% <span class="tok-number">1</span>);</span> <span class="line" id="L190"> <span class="tok-kw">const</span> z00 = t00 ^ (mask & (t00 ^ t01));</span> <span class="line" id="L191"> <span class="tok-kw">const</span> z10 = t10 ^ (mask & (t10 ^ t11));</span> <span class="line" id="L192"> <span class="tok-kw">const</span> z20 = t20 ^ (mask & (t20 ^ t21));</span> <span class="line" id="L193"> <span class="tok-kw">const</span> z30 = t30 ^ (mask & (t30 ^ t31));</span> <span class="line" id="L194"> <span class="tok-kw">const</span> z40 = t4 ^ (mask & (t4 ^ t41));</span> <span class="line" id="L195"></span> <span class="line" id="L196"> <span class="tok-kw">return</span> Scalar{ .limbs = .{ z00, z10, z20, z30, z40 } };</span> <span class="line" id="L197"> }</span> <span class="line" id="L198"></span> <span class="line" id="L199"> <span class="tok-comment">/// Return xr (mod L)</span></span> <span class="line" id="L200"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">mul</span>(x: Scalar, y: Scalar) Scalar {</span> <span class="line" id="L201"> <span class="tok-kw">const</span> xy000 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, x.limbs[<span class="tok-number">0</span>]) <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, y.limbs[<span class="tok-number">0</span>]);</span> <span class="line" id="L202"> <span class="tok-kw">const</span> xy010 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, x.limbs[<span class="tok-number">0</span>]) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, y.limbs[<span class="tok-number">1</span>]);</span> <span class="line" id="L203"> <span class="tok-kw">const</span> xy020 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, x.limbs[<span class="tok-number">0</span>]) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, y.limbs[<span class="tok-number">2</span>]);</span> <span class="line" id="L204"> <span class="tok-kw">const</span> xy030 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, x.limbs[<span class="tok-number">0</span>]) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, y.limbs[<span class="tok-number">3</span>]);</span> <span class="line" id="L205"> <span class="tok-kw">const</span> xy040 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, x.limbs[<span class="tok-number">0</span>]) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, y.limbs[<span class="tok-number">4</span>]);</span> <span class="line" id="L206"> <span class="tok-kw">const</span> xy100 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, x.limbs[<span class="tok-number">1</span>]) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, y.limbs[<span class="tok-number">0</span>]);</span> <span class="line" id="L207"> <span class="tok-kw">const</span> xy110 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, x.limbs[<span class="tok-number">1</span>]) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, y.limbs[<span class="tok-number">1</span>]);</span> <span class="line" id="L208"> <span class="tok-kw">const</span> xy120 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, x.limbs[<span class="tok-number">1</span>]) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, y.limbs[<span class="tok-number">2</span>]);</span> <span class="line" id="L209"> <span class="tok-kw">const</span> xy130 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, x.limbs[<span class="tok-number">1</span>]) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, y.limbs[<span class="tok-number">3</span>]);</span> <span class="line" id="L210"> <span class="tok-kw">const</span> xy140 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, x.limbs[<span class="tok-number">1</span>]) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, y.limbs[<span class="tok-number">4</span>]);</span> <span class="line" id="L211"> <span class="tok-kw">const</span> xy200 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, x.limbs[<span class="tok-number">2</span>]) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, y.limbs[<span class="tok-number">0</span>]);</span> <span class="line" id="L212"> <span class="tok-kw">const</span> xy210 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, x.limbs[<span class="tok-number">2</span>]) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, y.limbs[<span class="tok-number">1</span>]);</span> <span class="line" id="L213"> <span class="tok-kw">const</span> xy220 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, x.limbs[<span class="tok-number">2</span>]) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, y.limbs[<span class="tok-number">2</span>]);</span> <span class="line" id="L214"> <span class="tok-kw">const</span> xy230 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, x.limbs[<span class="tok-number">2</span>]) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, y.limbs[<span class="tok-number">3</span>]);</span> <span class="line" id="L215"> <span class="tok-kw">const</span> xy240 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, x.limbs[<span class="tok-number">2</span>]) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, y.limbs[<span class="tok-number">4</span>]);</span> <span class="line" id="L216"> <span class="tok-kw">const</span> xy300 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, x.limbs[<span class="tok-number">3</span>]) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, y.limbs[<span class="tok-number">0</span>]);</span> <span class="line" id="L217"> <span class="tok-kw">const</span> xy310 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, x.limbs[<span class="tok-number">3</span>]) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, y.limbs[<span class="tok-number">1</span>]);</span> <span class="line" id="L218"> <span class="tok-kw">const</span> xy320 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, x.limbs[<span class="tok-number">3</span>]) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, y.limbs[<span class="tok-number">2</span>]);</span> <span class="line" id="L219"> <span class="tok-kw">const</span> xy330 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, x.limbs[<span class="tok-number">3</span>]) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, y.limbs[<span class="tok-number">3</span>]);</span> <span class="line" id="L220"> <span class="tok-kw">const</span> xy340 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, x.limbs[<span class="tok-number">3</span>]) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, y.limbs[<span class="tok-number">4</span>]);</span> <span class="line" id="L221"> <span class="tok-kw">const</span> xy400 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, x.limbs[<span class="tok-number">4</span>]) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, y.limbs[<span class="tok-number">0</span>]);</span> <span class="line" id="L222"> <span class="tok-kw">const</span> xy410 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, x.limbs[<span class="tok-number">4</span>]) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, y.limbs[<span class="tok-number">1</span>]);</span> <span class="line" id="L223"> <span class="tok-kw">const</span> xy420 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, x.limbs[<span class="tok-number">4</span>]) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, y.limbs[<span class="tok-number">2</span>]);</span> <span class="line" id="L224"> <span class="tok-kw">const</span> xy430 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, x.limbs[<span class="tok-number">4</span>]) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, y.limbs[<span class="tok-number">3</span>]);</span> <span class="line" id="L225"> <span class="tok-kw">const</span> xy440 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, x.limbs[<span class="tok-number">4</span>]) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, y.limbs[<span class="tok-number">4</span>]);</span> <span class="line" id="L226"> <span class="tok-kw">const</span> z00 = xy000;</span> <span class="line" id="L227"> <span class="tok-kw">const</span> z10 = xy010 + xy100;</span> <span class="line" id="L228"> <span class="tok-kw">const</span> z20 = xy020 + xy110 + xy200;</span> <span class="line" id="L229"> <span class="tok-kw">const</span> z30 = xy030 + xy120 + xy210 + xy300;</span> <span class="line" id="L230"> <span class="tok-kw">const</span> z40 = xy040 + xy130 + xy220 + xy310 + xy400;</span> <span class="line" id="L231"> <span class="tok-kw">const</span> z50 = xy140 + xy230 + xy320 + xy410;</span> <span class="line" id="L232"> <span class="tok-kw">const</span> z60 = xy240 + xy330 + xy420;</span> <span class="line" id="L233"> <span class="tok-kw">const</span> z70 = xy340 + xy430;</span> <span class="line" id="L234"> <span class="tok-kw">const</span> z80 = xy440;</span> <span class="line" id="L235"></span> <span class="line" id="L236"> <span class="tok-kw">const</span> carry0 = z00 >> <span class="tok-number">56</span>;</span> <span class="line" id="L237"> <span class="tok-kw">const</span> t10 = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(z00)) & <span class="tok-number">0xffffffffffffff</span>;</span> <span class="line" id="L238"> <span class="tok-kw">const</span> c00 = carry0;</span> <span class="line" id="L239"> <span class="tok-kw">const</span> t00 = t10;</span> <span class="line" id="L240"> <span class="tok-kw">const</span> carry1 = (z10 + c00) >> <span class="tok-number">56</span>;</span> <span class="line" id="L241"> <span class="tok-kw">const</span> t11 = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>((z10 + c00))) & <span class="tok-number">0xffffffffffffff</span>;</span> <span class="line" id="L242"> <span class="tok-kw">const</span> c10 = carry1;</span> <span class="line" id="L243"> <span class="tok-kw">const</span> t12 = t11;</span> <span class="line" id="L244"> <span class="tok-kw">const</span> carry2 = (z20 + c10) >> <span class="tok-number">56</span>;</span> <span class="line" id="L245"> <span class="tok-kw">const</span> t13 = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>((z20 + c10))) & <span class="tok-number">0xffffffffffffff</span>;</span> <span class="line" id="L246"> <span class="tok-kw">const</span> c20 = carry2;</span> <span class="line" id="L247"> <span class="tok-kw">const</span> t20 = t13;</span> <span class="line" id="L248"> <span class="tok-kw">const</span> carry3 = (z30 + c20) >> <span class="tok-number">56</span>;</span> <span class="line" id="L249"> <span class="tok-kw">const</span> t14 = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>((z30 + c20))) & <span class="tok-number">0xffffffffffffff</span>;</span> <span class="line" id="L250"> <span class="tok-kw">const</span> c30 = carry3;</span> <span class="line" id="L251"> <span class="tok-kw">const</span> t30 = t14;</span> <span class="line" id="L252"> <span class="tok-kw">const</span> carry4 = (z40 + c30) >> <span class="tok-number">56</span>;</span> <span class="line" id="L253"> <span class="tok-kw">const</span> t15 = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>((z40 + c30))) & <span class="tok-number">0xffffffffffffff</span>;</span> <span class="line" id="L254"> <span class="tok-kw">const</span> c40 = carry4;</span> <span class="line" id="L255"> <span class="tok-kw">const</span> t40 = t15;</span> <span class="line" id="L256"> <span class="tok-kw">const</span> carry5 = (z50 + c40) >> <span class="tok-number">56</span>;</span> <span class="line" id="L257"> <span class="tok-kw">const</span> t16 = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>((z50 + c40))) & <span class="tok-number">0xffffffffffffff</span>;</span> <span class="line" id="L258"> <span class="tok-kw">const</span> c50 = carry5;</span> <span class="line" id="L259"> <span class="tok-kw">const</span> t50 = t16;</span> <span class="line" id="L260"> <span class="tok-kw">const</span> carry6 = (z60 + c50) >> <span class="tok-number">56</span>;</span> <span class="line" id="L261"> <span class="tok-kw">const</span> t17 = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>((z60 + c50))) & <span class="tok-number">0xffffffffffffff</span>;</span> <span class="line" id="L262"> <span class="tok-kw">const</span> c60 = carry6;</span> <span class="line" id="L263"> <span class="tok-kw">const</span> t60 = t17;</span> <span class="line" id="L264"> <span class="tok-kw">const</span> carry7 = (z70 + c60) >> <span class="tok-number">56</span>;</span> <span class="line" id="L265"> <span class="tok-kw">const</span> t18 = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>((z70 + c60))) & <span class="tok-number">0xffffffffffffff</span>;</span> <span class="line" id="L266"> <span class="tok-kw">const</span> c70 = carry7;</span> <span class="line" id="L267"> <span class="tok-kw">const</span> t70 = t18;</span> <span class="line" id="L268"> <span class="tok-kw">const</span> carry8 = (z80 + c70) >> <span class="tok-number">56</span>;</span> <span class="line" id="L269"> <span class="tok-kw">const</span> t19 = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>((z80 + c70))) & <span class="tok-number">0xffffffffffffff</span>;</span> <span class="line" id="L270"> <span class="tok-kw">const</span> c80 = carry8;</span> <span class="line" id="L271"> <span class="tok-kw">const</span> t80 = t19;</span> <span class="line" id="L272"> <span class="tok-kw">const</span> t90 = (<span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(c80)));</span> <span class="line" id="L273"> <span class="tok-kw">const</span> r0 = t00;</span> <span class="line" id="L274"> <span class="tok-kw">const</span> r1 = t12;</span> <span class="line" id="L275"> <span class="tok-kw">const</span> r2 = t20;</span> <span class="line" id="L276"> <span class="tok-kw">const</span> r3 = t30;</span> <span class="line" id="L277"> <span class="tok-kw">const</span> r4 = t40;</span> <span class="line" id="L278"> <span class="tok-kw">const</span> r5 = t50;</span> <span class="line" id="L279"> <span class="tok-kw">const</span> r6 = t60;</span> <span class="line" id="L280"> <span class="tok-kw">const</span> r7 = t70;</span> <span class="line" id="L281"> <span class="tok-kw">const</span> r8 = t80;</span> <span class="line" id="L282"> <span class="tok-kw">const</span> r9 = t90;</span> <span class="line" id="L283"></span> <span class="line" id="L284"> <span class="tok-kw">const</span> m0: <span class="tok-type">u64</span> = <span class="tok-number">5175514460705773</span>;</span> <span class="line" id="L285"> <span class="tok-kw">const</span> m1: <span class="tok-type">u64</span> = <span class="tok-number">70332060721272408</span>;</span> <span class="line" id="L286"> <span class="tok-kw">const</span> m2: <span class="tok-type">u64</span> = <span class="tok-number">5342</span>;</span> <span class="line" id="L287"> <span class="tok-kw">const</span> m3: <span class="tok-type">u64</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L288"> <span class="tok-kw">const</span> m4: <span class="tok-type">u64</span> = <span class="tok-number">268435456</span>;</span> <span class="line" id="L289"> <span class="tok-kw">const</span> mu0: <span class="tok-type">u64</span> = <span class="tok-number">44162584779952923</span>;</span> <span class="line" id="L290"> <span class="tok-kw">const</span> mu1: <span class="tok-type">u64</span> = <span class="tok-number">9390964836247533</span>;</span> <span class="line" id="L291"> <span class="tok-kw">const</span> mu2: <span class="tok-type">u64</span> = <span class="tok-number">72057594036560134</span>;</span> <span class="line" id="L292"> <span class="tok-kw">const</span> mu3: <span class="tok-type">u64</span> = <span class="tok-number">72057594037927935</span>;</span> <span class="line" id="L293"> <span class="tok-kw">const</span> mu4: <span class="tok-type">u64</span> = <span class="tok-number">68719476735</span>;</span> <span class="line" id="L294"></span> <span class="line" id="L295"> <span class="tok-kw">const</span> y_ = (r5 & <span class="tok-number">0xffffff</span>) << <span class="tok-number">32</span>;</span> <span class="line" id="L296"> <span class="tok-kw">const</span> x_ = r4 >> <span class="tok-number">24</span>;</span> <span class="line" id="L297"> <span class="tok-kw">const</span> z01 = (x_ \| y_);</span> <span class="line" id="L298"> <span class="tok-kw">const</span> y_0 = (r6 & <span class="tok-number">0xffffff</span>) << <span class="tok-number">32</span>;</span> <span class="line" id="L299"> <span class="tok-kw">const</span> x_0 = r5 >> <span class="tok-number">24</span>;</span> <span class="line" id="L300"> <span class="tok-kw">const</span> z11 = (x_0 \| y_0);</span> <span class="line" id="L301"> <span class="tok-kw">const</span> y_1 = (r7 & <span class="tok-number">0xffffff</span>) << <span class="tok-number">32</span>;</span> <span class="line" id="L302"> <span class="tok-kw">const</span> x_1 = r6 >> <span class="tok-number">24</span>;</span> <span class="line" id="L303"> <span class="tok-kw">const</span> z21 = (x_1 \| y_1);</span> <span class="line" id="L304"> <span class="tok-kw">const</span> y_2 = (r8 & <span class="tok-number">0xffffff</span>) << <span class="tok-number">32</span>;</span> <span class="line" id="L305"> <span class="tok-kw">const</span> x_2 = r7 >> <span class="tok-number">24</span>;</span> <span class="line" id="L306"> <span class="tok-kw">const</span> z31 = (x_2 \| y_2);</span> <span class="line" id="L307"> <span class="tok-kw">const</span> y_3 = (r9 & <span class="tok-number">0xffffff</span>) << <span class="tok-number">32</span>;</span> <span class="line" id="L308"> <span class="tok-kw">const</span> x_3 = r8 >> <span class="tok-number">24</span>;</span> <span class="line" id="L309"> <span class="tok-kw">const</span> z41 = (x_3 \| y_3);</span> <span class="line" id="L310"> <span class="tok-kw">const</span> q0 = z01;</span> <span class="line" id="L311"> <span class="tok-kw">const</span> q1 = z11;</span> <span class="line" id="L312"> <span class="tok-kw">const</span> q2 = z21;</span> <span class="line" id="L313"> <span class="tok-kw">const</span> q3 = z31;</span> <span class="line" id="L314"> <span class="tok-kw">const</span> q4 = z41;</span> <span class="line" id="L315"> <span class="tok-kw">const</span> xy001 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q0) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu0);</span> <span class="line" id="L316"> <span class="tok-kw">const</span> xy011 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q0) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu1);</span> <span class="line" id="L317"> <span class="tok-kw">const</span> xy021 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q0) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu2);</span> <span class="line" id="L318"> <span class="tok-kw">const</span> xy031 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q0) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu3);</span> <span class="line" id="L319"> <span class="tok-kw">const</span> xy041 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q0) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu4);</span> <span class="line" id="L320"> <span class="tok-kw">const</span> xy101 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q1) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu0);</span> <span class="line" id="L321"> <span class="tok-kw">const</span> xy111 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q1) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu1);</span> <span class="line" id="L322"> <span class="tok-kw">const</span> xy121 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q1) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu2);</span> <span class="line" id="L323"> <span class="tok-kw">const</span> xy131 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q1) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu3);</span> <span class="line" id="L324"> <span class="tok-kw">const</span> xy14 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q1) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu4);</span> <span class="line" id="L325"> <span class="tok-kw">const</span> xy201 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q2) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu0);</span> <span class="line" id="L326"> <span class="tok-kw">const</span> xy211 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q2) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu1);</span> <span class="line" id="L327"> <span class="tok-kw">const</span> xy221 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q2) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu2);</span> <span class="line" id="L328"> <span class="tok-kw">const</span> xy23 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q2) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu3);</span> <span class="line" id="L329"> <span class="tok-kw">const</span> xy24 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q2) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu4);</span> <span class="line" id="L330"> <span class="tok-kw">const</span> xy301 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q3) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu0);</span> <span class="line" id="L331"> <span class="tok-kw">const</span> xy311 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q3) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu1);</span> <span class="line" id="L332"> <span class="tok-kw">const</span> xy32 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q3) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu2);</span> <span class="line" id="L333"> <span class="tok-kw">const</span> xy33 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q3) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu3);</span> <span class="line" id="L334"> <span class="tok-kw">const</span> xy34 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q3) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu4);</span> <span class="line" id="L335"> <span class="tok-kw">const</span> xy401 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q4) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu0);</span> <span class="line" id="L336"> <span class="tok-kw">const</span> xy41 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q4) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu1);</span> <span class="line" id="L337"> <span class="tok-kw">const</span> xy42 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q4) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu2);</span> <span class="line" id="L338"> <span class="tok-kw">const</span> xy43 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q4) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu3);</span> <span class="line" id="L339"> <span class="tok-kw">const</span> xy44 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q4) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu4);</span> <span class="line" id="L340"> <span class="tok-kw">const</span> z02 = xy001;</span> <span class="line" id="L341"> <span class="tok-kw">const</span> z12 = xy011 + xy101;</span> <span class="line" id="L342"> <span class="tok-kw">const</span> z22 = xy021 + xy111 + xy201;</span> <span class="line" id="L343"> <span class="tok-kw">const</span> z32 = xy031 + xy121 + xy211 + xy301;</span> <span class="line" id="L344"> <span class="tok-kw">const</span> z42 = xy041 + xy131 + xy221 + xy311 + xy401;</span> <span class="line" id="L345"> <span class="tok-kw">const</span> z5 = xy14 + xy23 + xy32 + xy41;</span> <span class="line" id="L346"> <span class="tok-kw">const</span> z6 = xy24 + xy33 + xy42;</span> <span class="line" id="L347"> <span class="tok-kw">const</span> z7 = xy34 + xy43;</span> <span class="line" id="L348"> <span class="tok-kw">const</span> z8 = xy44;</span> <span class="line" id="L349"></span> <span class="line" id="L350"> <span class="tok-kw">const</span> carry9 = z02 >> <span class="tok-number">56</span>;</span> <span class="line" id="L351"> <span class="tok-kw">const</span> c01 = carry9;</span> <span class="line" id="L352"> <span class="tok-kw">const</span> carry10 = (z12 + c01) >> <span class="tok-number">56</span>;</span> <span class="line" id="L353"> <span class="tok-kw">const</span> c11 = carry10;</span> <span class="line" id="L354"> <span class="tok-kw">const</span> carry11 = (z22 + c11) >> <span class="tok-number">56</span>;</span> <span class="line" id="L355"> <span class="tok-kw">const</span> c21 = carry11;</span> <span class="line" id="L356"> <span class="tok-kw">const</span> carry12 = (z32 + c21) >> <span class="tok-number">56</span>;</span> <span class="line" id="L357"> <span class="tok-kw">const</span> c31 = carry12;</span> <span class="line" id="L358"> <span class="tok-kw">const</span> carry13 = (z42 + c31) >> <span class="tok-number">56</span>;</span> <span class="line" id="L359"> <span class="tok-kw">const</span> t24 = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(z42 + c31)) & <span class="tok-number">0xffffffffffffff</span>;</span> <span class="line" id="L360"> <span class="tok-kw">const</span> c41 = carry13;</span> <span class="line" id="L361"> <span class="tok-kw">const</span> t41 = t24;</span> <span class="line" id="L362"> <span class="tok-kw">const</span> carry14 = (z5 + c41) >> <span class="tok-number">56</span>;</span> <span class="line" id="L363"> <span class="tok-kw">const</span> t25 = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(z5 + c41)) & <span class="tok-number">0xffffffffffffff</span>;</span> <span class="line" id="L364"> <span class="tok-kw">const</span> c5 = carry14;</span> <span class="line" id="L365"> <span class="tok-kw">const</span> t5 = t25;</span> <span class="line" id="L366"> <span class="tok-kw">const</span> carry15 = (z6 + c5) >> <span class="tok-number">56</span>;</span> <span class="line" id="L367"> <span class="tok-kw">const</span> t26 = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(z6 + c5)) & <span class="tok-number">0xffffffffffffff</span>;</span> <span class="line" id="L368"> <span class="tok-kw">const</span> c6 = carry15;</span> <span class="line" id="L369"> <span class="tok-kw">const</span> t6 = t26;</span> <span class="line" id="L370"> <span class="tok-kw">const</span> carry16 = (z7 + c6) >> <span class="tok-number">56</span>;</span> <span class="line" id="L371"> <span class="tok-kw">const</span> t27 = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(z7 + c6)) & <span class="tok-number">0xffffffffffffff</span>;</span> <span class="line" id="L372"> <span class="tok-kw">const</span> c7 = carry16;</span> <span class="line" id="L373"> <span class="tok-kw">const</span> t7 = t27;</span> <span class="line" id="L374"> <span class="tok-kw">const</span> carry17 = (z8 + c7) >> <span class="tok-number">56</span>;</span> <span class="line" id="L375"> <span class="tok-kw">const</span> t28 = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(z8 + c7)) & <span class="tok-number">0xffffffffffffff</span>;</span> <span class="line" id="L376"> <span class="tok-kw">const</span> c8 = carry17;</span> <span class="line" id="L377"> <span class="tok-kw">const</span> t8 = t28;</span> <span class="line" id="L378"> <span class="tok-kw">const</span> t9 = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(c8));</span> <span class="line" id="L379"></span> <span class="line" id="L380"> <span class="tok-kw">const</span> qmu4_ = t41;</span> <span class="line" id="L381"> <span class="tok-kw">const</span> qmu5_ = t5;</span> <span class="line" id="L382"> <span class="tok-kw">const</span> qmu6_ = t6;</span> <span class="line" id="L383"> <span class="tok-kw">const</span> qmu7_ = t7;</span> <span class="line" id="L384"> <span class="tok-kw">const</span> qmu8_ = t8;</span> <span class="line" id="L385"> <span class="tok-kw">const</span> qmu9_ = t9;</span> <span class="line" id="L386"> <span class="tok-kw">const</span> y_4 = (qmu5_ & <span class="tok-number">0xffffffffff</span>) << <span class="tok-number">16</span>;</span> <span class="line" id="L387"> <span class="tok-kw">const</span> x_4 = qmu4_ >> <span class="tok-number">40</span>;</span> <span class="line" id="L388"> <span class="tok-kw">const</span> z03 = (x_4 \| y_4);</span> <span class="line" id="L389"> <span class="tok-kw">const</span> y_5 = (qmu6_ & <span class="tok-number">0xffffffffff</span>) << <span class="tok-number">16</span>;</span> <span class="line" id="L390"> <span class="tok-kw">const</span> x_5 = qmu5_ >> <span class="tok-number">40</span>;</span> <span class="line" id="L391"> <span class="tok-kw">const</span> z13 = (x_5 \| y_5);</span> <span class="line" id="L392"> <span class="tok-kw">const</span> y_6 = (qmu7_ & <span class="tok-number">0xffffffffff</span>) << <span class="tok-number">16</span>;</span> <span class="line" id="L393"> <span class="tok-kw">const</span> x_6 = qmu6_ >> <span class="tok-number">40</span>;</span> <span class="line" id="L394"> <span class="tok-kw">const</span> z23 = (x_6 \| y_6);</span> <span class="line" id="L395"> <span class="tok-kw">const</span> y_7 = (qmu8_ & <span class="tok-number">0xffffffffff</span>) << <span class="tok-number">16</span>;</span> <span class="line" id="L396"> <span class="tok-kw">const</span> x_7 = qmu7_ >> <span class="tok-number">40</span>;</span> <span class="line" id="L397"> <span class="tok-kw">const</span> z33 = (x_7 \| y_7);</span> <span class="line" id="L398"> <span class="tok-kw">const</span> y_8 = (qmu9_ & <span class="tok-number">0xffffffffff</span>) << <span class="tok-number">16</span>;</span> <span class="line" id="L399"> <span class="tok-kw">const</span> x_8 = qmu8_ >> <span class="tok-number">40</span>;</span> <span class="line" id="L400"> <span class="tok-kw">const</span> z43 = (x_8 \| y_8);</span> <span class="line" id="L401"> <span class="tok-kw">const</span> qdiv0 = z03;</span> <span class="line" id="L402"> <span class="tok-kw">const</span> qdiv1 = z13;</span> <span class="line" id="L403"> <span class="tok-kw">const</span> qdiv2 = z23;</span> <span class="line" id="L404"> <span class="tok-kw">const</span> qdiv3 = z33;</span> <span class="line" id="L405"> <span class="tok-kw">const</span> qdiv4 = z43;</span> <span class="line" id="L406"> <span class="tok-kw">const</span> r01 = r0;</span> <span class="line" id="L407"> <span class="tok-kw">const</span> r11 = r1;</span> <span class="line" id="L408"> <span class="tok-kw">const</span> r21 = r2;</span> <span class="line" id="L409"> <span class="tok-kw">const</span> r31 = r3;</span> <span class="line" id="L410"> <span class="tok-kw">const</span> r41 = (r4 & <span class="tok-number">0xffffffffff</span>);</span> <span class="line" id="L411"></span> <span class="line" id="L412"> <span class="tok-kw">const</span> xy00 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, qdiv0) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, m0);</span> <span class="line" id="L413"> <span class="tok-kw">const</span> xy01 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, qdiv0) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, m1);</span> <span class="line" id="L414"> <span class="tok-kw">const</span> xy02 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, qdiv0) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, m2);</span> <span class="line" id="L415"> <span class="tok-kw">const</span> xy03 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, qdiv0) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, m3);</span> <span class="line" id="L416"> <span class="tok-kw">const</span> xy04 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, qdiv0) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, m4);</span> <span class="line" id="L417"> <span class="tok-kw">const</span> xy10 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, qdiv1) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, m0);</span> <span class="line" id="L418"> <span class="tok-kw">const</span> xy11 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, qdiv1) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, m1);</span> <span class="line" id="L419"> <span class="tok-kw">const</span> xy12 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, qdiv1) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, m2);</span> <span class="line" id="L420"> <span class="tok-kw">const</span> xy13 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, qdiv1) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, m3);</span> <span class="line" id="L421"> <span class="tok-kw">const</span> xy20 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, qdiv2) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, m0);</span> <span class="line" id="L422"> <span class="tok-kw">const</span> xy21 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, qdiv2) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, m1);</span> <span class="line" id="L423"> <span class="tok-kw">const</span> xy22 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, qdiv2) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, m2);</span> <span class="line" id="L424"> <span class="tok-kw">const</span> xy30 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, qdiv3) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, m0);</span> <span class="line" id="L425"> <span class="tok-kw">const</span> xy31 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, qdiv3) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, m1);</span> <span class="line" id="L426"> <span class="tok-kw">const</span> xy40 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, qdiv4) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, m0);</span> <span class="line" id="L427"> <span class="tok-kw">const</span> carry18 = xy00 >> <span class="tok-number">56</span>;</span> <span class="line" id="L428"> <span class="tok-kw">const</span> t29 = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(xy00)) & <span class="tok-number">0xffffffffffffff</span>;</span> <span class="line" id="L429"> <span class="tok-kw">const</span> c0 = carry18;</span> <span class="line" id="L430"> <span class="tok-kw">const</span> t01 = t29;</span> <span class="line" id="L431"> <span class="tok-kw">const</span> carry19 = (xy01 + xy10 + c0) >> <span class="tok-number">56</span>;</span> <span class="line" id="L432"> <span class="tok-kw">const</span> t31 = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(xy01 + xy10 + c0)) & <span class="tok-number">0xffffffffffffff</span>;</span> <span class="line" id="L433"> <span class="tok-kw">const</span> c12 = carry19;</span> <span class="line" id="L434"> <span class="tok-kw">const</span> t110 = t31;</span> <span class="line" id="L435"> <span class="tok-kw">const</span> carry20 = (xy02 + xy11 + xy20 + c12) >> <span class="tok-number">56</span>;</span> <span class="line" id="L436"> <span class="tok-kw">const</span> t32 = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(xy02 + xy11 + xy20 + c12)) & <span class="tok-number">0xffffffffffffff</span>;</span> <span class="line" id="L437"> <span class="tok-kw">const</span> c22 = carry20;</span> <span class="line" id="L438"> <span class="tok-kw">const</span> t210 = t32;</span> <span class="line" id="L439"> <span class="tok-kw">const</span> carry = (xy03 + xy12 + xy21 + xy30 + c22) >> <span class="tok-number">56</span>;</span> <span class="line" id="L440"> <span class="tok-kw">const</span> t33 = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(xy03 + xy12 + xy21 + xy30 + c22)) & <span class="tok-number">0xffffffffffffff</span>;</span> <span class="line" id="L441"> <span class="tok-kw">const</span> c32 = carry;</span> <span class="line" id="L442"> <span class="tok-kw">const</span> t34 = t33;</span> <span class="line" id="L443"> <span class="tok-kw">const</span> t42 = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(xy04 + xy13 + xy22 + xy31 + xy40 + c32)) & <span class="tok-number">0xffffffffff</span>;</span> <span class="line" id="L444"></span> <span class="line" id="L445"> <span class="tok-kw">const</span> qmul0 = t01;</span> <span class="line" id="L446"> <span class="tok-kw">const</span> qmul1 = t110;</span> <span class="line" id="L447"> <span class="tok-kw">const</span> qmul2 = t210;</span> <span class="line" id="L448"> <span class="tok-kw">const</span> qmul3 = t34;</span> <span class="line" id="L449"> <span class="tok-kw">const</span> qmul4 = t42;</span> <span class="line" id="L450"> <span class="tok-kw">const</span> b5 = (r01 -% qmul0) >> <span class="tok-number">63</span>;</span> <span class="line" id="L451"> <span class="tok-kw">const</span> t35 = ((b5 << <span class="tok-number">56</span>) + r01) -% qmul0;</span> <span class="line" id="L452"> <span class="tok-kw">const</span> c1 = b5;</span> <span class="line" id="L453"> <span class="tok-kw">const</span> t02 = t35;</span> <span class="line" id="L454"> <span class="tok-kw">const</span> b6 = (r11 -% (qmul1 + c1)) >> <span class="tok-number">63</span>;</span> <span class="line" id="L455"> <span class="tok-kw">const</span> t36 = ((b6 << <span class="tok-number">56</span>) + r11) -% (qmul1 + c1);</span> <span class="line" id="L456"> <span class="tok-kw">const</span> c2 = b6;</span> <span class="line" id="L457"> <span class="tok-kw">const</span> t111 = t36;</span> <span class="line" id="L458"> <span class="tok-kw">const</span> b7 = (r21 -% (qmul2 + c2)) >> <span class="tok-number">63</span>;</span> <span class="line" id="L459"> <span class="tok-kw">const</span> t37 = ((b7 << <span class="tok-number">56</span>) + r21) -% (qmul2 + c2);</span> <span class="line" id="L460"> <span class="tok-kw">const</span> c3 = b7;</span> <span class="line" id="L461"> <span class="tok-kw">const</span> t211 = t37;</span> <span class="line" id="L462"> <span class="tok-kw">const</span> b8 = (r31 -% (qmul3 + c3)) >> <span class="tok-number">63</span>;</span> <span class="line" id="L463"> <span class="tok-kw">const</span> t38 = ((b8 << <span class="tok-number">56</span>) + r31) -% (qmul3 + c3);</span> <span class="line" id="L464"> <span class="tok-kw">const</span> c4 = b8;</span> <span class="line" id="L465"> <span class="tok-kw">const</span> t39 = t38;</span> <span class="line" id="L466"> <span class="tok-kw">const</span> b9 = (r41 -% (qmul4 + c4)) >> <span class="tok-number">63</span>;</span> <span class="line" id="L467"> <span class="tok-kw">const</span> t43 = ((b9 << <span class="tok-number">40</span>) + r41) -% (qmul4 + c4);</span> <span class="line" id="L468"> <span class="tok-kw">const</span> t44 = t43;</span> <span class="line" id="L469"> <span class="tok-kw">const</span> s0 = t02;</span> <span class="line" id="L470"> <span class="tok-kw">const</span> s1 = t111;</span> <span class="line" id="L471"> <span class="tok-kw">const</span> s2 = t211;</span> <span class="line" id="L472"> <span class="tok-kw">const</span> s3 = t39;</span> <span class="line" id="L473"> <span class="tok-kw">const</span> s4 = t44;</span> <span class="line" id="L474"></span> <span class="line" id="L475"> <span class="tok-kw">const</span> y01: <span class="tok-type">u64</span> = <span class="tok-number">5175514460705773</span>;</span> <span class="line" id="L476"> <span class="tok-kw">const</span> y11: <span class="tok-type">u64</span> = <span class="tok-number">70332060721272408</span>;</span> <span class="line" id="L477"> <span class="tok-kw">const</span> y21: <span class="tok-type">u64</span> = <span class="tok-number">5342</span>;</span> <span class="line" id="L478"> <span class="tok-kw">const</span> y31: <span class="tok-type">u64</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L479"> <span class="tok-kw">const</span> y41: <span class="tok-type">u64</span> = <span class="tok-number">268435456</span>;</span> <span class="line" id="L480"></span> <span class="line" id="L481"> <span class="tok-kw">const</span> b10 = (s0 -% y01) >> <span class="tok-number">63</span>;</span> <span class="line" id="L482"> <span class="tok-kw">const</span> t45 = ((b10 << <span class="tok-number">56</span>) + s0) -% y01;</span> <span class="line" id="L483"> <span class="tok-kw">const</span> b0 = b10;</span> <span class="line" id="L484"> <span class="tok-kw">const</span> t0 = t45;</span> <span class="line" id="L485"> <span class="tok-kw">const</span> b11 = (s1 -% (y11 + b0)) >> <span class="tok-number">63</span>;</span> <span class="line" id="L486"> <span class="tok-kw">const</span> t46 = ((b11 << <span class="tok-number">56</span>) + s1) -% (y11 + b0);</span> <span class="line" id="L487"> <span class="tok-kw">const</span> b1 = b11;</span> <span class="line" id="L488"> <span class="tok-kw">const</span> t1 = t46;</span> <span class="line" id="L489"> <span class="tok-kw">const</span> b12 = (s2 -% (y21 + b1)) >> <span class="tok-number">63</span>;</span> <span class="line" id="L490"> <span class="tok-kw">const</span> t47 = ((b12 << <span class="tok-number">56</span>) + s2) -% (y21 + b1);</span> <span class="line" id="L491"> <span class="tok-kw">const</span> b2 = b12;</span> <span class="line" id="L492"> <span class="tok-kw">const</span> t2 = t47;</span> <span class="line" id="L493"> <span class="tok-kw">const</span> b13 = (s3 -% (y31 + b2)) >> <span class="tok-number">63</span>;</span> <span class="line" id="L494"> <span class="tok-kw">const</span> t48 = ((b13 << <span class="tok-number">56</span>) + s3) -% (y31 + b2);</span> <span class="line" id="L495"> <span class="tok-kw">const</span> b3 = b13;</span> <span class="line" id="L496"> <span class="tok-kw">const</span> t3 = t48;</span> <span class="line" id="L497"> <span class="tok-kw">const</span> b = (s4 -% (y41 + b3)) >> <span class="tok-number">63</span>;</span> <span class="line" id="L498"> <span class="tok-kw">const</span> t = ((b << <span class="tok-number">56</span>) + s4) -% (y41 + b3);</span> <span class="line" id="L499"> <span class="tok-kw">const</span> b4 = b;</span> <span class="line" id="L500"> <span class="tok-kw">const</span> t4 = t;</span> <span class="line" id="L501"> <span class="tok-kw">const</span> mask = (b4 -% <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@intCast</span>(((<span class="tok-number">1</span>)))));</span> <span class="line" id="L502"> <span class="tok-kw">const</span> z04 = s0 ^ (mask & (s0 ^ t0));</span> <span class="line" id="L503"> <span class="tok-kw">const</span> z14 = s1 ^ (mask & (s1 ^ t1));</span> <span class="line" id="L504"> <span class="tok-kw">const</span> z24 = s2 ^ (mask & (s2 ^ t2));</span> <span class="line" id="L505"> <span class="tok-kw">const</span> z34 = s3 ^ (mask & (s3 ^ t3));</span> <span class="line" id="L506"> <span class="tok-kw">const</span> z44 = s4 ^ (mask & (s4 ^ t4));</span> <span class="line" id="L507"></span> <span class="line" id="L508"> <span class="tok-kw">return</span> Scalar{ .limbs = .{ z04, z14, z24, z34, z44 } };</span> <span class="line" id="L509"> }</span> <span class="line" id="L510"></span> <span class="line" id="L511"> <span class="tok-comment">/// Return x^2 (mod L)</span></span> <span class="line" id="L512"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">sq</span>(x: Scalar) Scalar {</span> <span class="line" id="L513"> <span class="tok-kw">return</span> x.mul(x);</span> <span class="line" id="L514"> }</span> <span class="line" id="L515"></span> <span class="line" id="L516"> <span class="tok-comment">/// Square a scalar `n` times</span></span> <span class="line" id="L517"> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">sqn</span>(x: Scalar, <span class="tok-kw">comptime</span> n: <span class="tok-type">comptime_int</span>) Scalar {</span> <span class="line" id="L518"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L519"> <span class="tok-kw">var</span> t = x;</span> <span class="line" id="L520"> <span class="tok-kw">while</span> (i < n) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L521"> t = t.sq();</span> <span class="line" id="L522"> }</span> <span class="line" id="L523"> <span class="tok-kw">return</span> t;</span> <span class="line" id="L524"> }</span> <span class="line" id="L525"></span> <span class="line" id="L526"> <span class="tok-comment">/// Square and multiply</span></span> <span class="line" id="L527"> <span class="tok-kw">fn</span> <span class="tok-fn">sqn_mul</span>(x: Scalar, <span class="tok-kw">comptime</span> n: <span class="tok-type">comptime_int</span>, y: Scalar) Scalar {</span> <span class="line" id="L528"> <span class="tok-kw">return</span> x.sqn(n).mul(y);</span> <span class="line" id="L529"> }</span> <span class="line" id="L530"></span> <span class="line" id="L531"> <span class="tok-comment">/// Return the inverse of a scalar (mod L), or 0 if x=0.</span></span> <span class="line" id="L532"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">invert</span>(x: Scalar) Scalar {</span> <span class="line" id="L533"> <span class="tok-kw">const</span> _10 = x.sq();</span> <span class="line" id="L534"> <span class="tok-kw">const</span> _11 = x.mul(_10);</span> <span class="line" id="L535"> <span class="tok-kw">const</span> _100 = x.mul(_11);</span> <span class="line" id="L536"> <span class="tok-kw">const</span> _1000 = _100.sq();</span> <span class="line" id="L537"> <span class="tok-kw">const</span> _1010 = _10.mul(_1000);</span> <span class="line" id="L538"> <span class="tok-kw">const</span> _1011 = x.mul(_1010);</span> <span class="line" id="L539"> <span class="tok-kw">const</span> _10000 = _1000.sq();</span> <span class="line" id="L540"> <span class="tok-kw">const</span> _10110 = _1011.sq();</span> <span class="line" id="L541"> <span class="tok-kw">const</span> _100000 = _1010.mul(_10110);</span> <span class="line" id="L542"> <span class="tok-kw">const</span> _100110 = _10000.mul(_10110);</span> <span class="line" id="L543"> <span class="tok-kw">const</span> _1000000 = _100000.sq();</span> <span class="line" id="L544"> <span class="tok-kw">const</span> _1010000 = _10000.mul(_1000000);</span> <span class="line" id="L545"> <span class="tok-kw">const</span> _1010011 = _11.mul(_1010000);</span> <span class="line" id="L546"> <span class="tok-kw">const</span> _1100011 = _10000.mul(_1010011);</span> <span class="line" id="L547"> <span class="tok-kw">const</span> _1100111 = _100.mul(_1100011);</span> <span class="line" id="L548"> <span class="tok-kw">const</span> _1101011 = _100.mul(_1100111);</span> <span class="line" id="L549"> <span class="tok-kw">const</span> _10010011 = _1000000.mul(_1010011);</span> <span class="line" id="L550"> <span class="tok-kw">const</span> _10010111 = _100.mul(_10010011);</span> <span class="line" id="L551"> <span class="tok-kw">const</span> _10111101 = _100110.mul(_10010111);</span> <span class="line" id="L552"> <span class="tok-kw">const</span> _11010011 = _10110.mul(_10111101);</span> <span class="line" id="L553"> <span class="tok-kw">const</span> _11100111 = _1010000.mul(_10010111);</span> <span class="line" id="L554"> <span class="tok-kw">const</span> _11101011 = _100.mul(_11100111);</span> <span class="line" id="L555"> <span class="tok-kw">const</span> _11110101 = _1010.mul(_11101011);</span> <span class="line" id="L556"> <span class="tok-kw">return</span> _1011.mul(_11110101).sqn_mul(<span class="tok-number">126</span>, _1010011).sqn_mul(<span class="tok-number">9</span>, _10).mul(_11110101)</span> <span class="line" id="L557"> .sqn_mul(<span class="tok-number">7</span>, _1100111).sqn_mul(<span class="tok-number">9</span>, _11110101).sqn_mul(<span class="tok-number">11</span>, _10111101).sqn_mul(<span class="tok-number">8</span>, _11100111)</span> <span class="line" id="L558"> .sqn_mul(<span class="tok-number">9</span>, _1101011).sqn_mul(<span class="tok-number">6</span>, _1011).sqn_mul(<span class="tok-number">14</span>, _10010011).sqn_mul(<span class="tok-number">10</span>, _1100011)</span> <span class="line" id="L559"> .sqn_mul(<span class="tok-number">9</span>, _10010111).sqn_mul(<span class="tok-number">10</span>, _11110101).sqn_mul(<span class="tok-number">8</span>, _11010011).sqn_mul(<span class="tok-number">8</span>, _11101011);</span> <span class="line" id="L560"> }</span> <span class="line" id="L561"></span> <span class="line" id="L562"> <span class="tok-comment">/// Return a random scalar < L.</span></span> <span class="line" id="L563"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">random</span>() Scalar {</span> <span class="line" id="L564"> <span class="tok-kw">var</span> s: [<span class="tok-number">64</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L565"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L566"> crypto.random.bytes(&s);</span> <span class="line" id="L567"> <span class="tok-kw">const</span> n = Scalar.fromBytes64(s);</span> <span class="line" id="L568"> <span class="tok-kw">if</span> (!n.isZero()) {</span> <span class="line" id="L569"> <span class="tok-kw">return</span> n;</span> <span class="line" id="L570"> }</span> <span class="line" id="L571"> }</span> <span class="line" id="L572"> }</span> <span class="line" id="L573">};</span> <span class="line" id="L574"></span> <span class="line" id="L575"><span class="tok-kw">const</span> ScalarDouble = <span class="tok-kw">struct</span> {</span> <span class="line" id="L576"> <span class="tok-kw">const</span> Limbs = [<span class="tok-number">10</span>]<span class="tok-type">u64</span>;</span> <span class="line" id="L577"> limbs: Limbs = <span class="tok-null">undefined</span>,</span> <span class="line" id="L578"></span> <span class="line" id="L579"> <span class="tok-kw">fn</span> <span class="tok-fn">fromBytes64</span>(bytes: [<span class="tok-number">64</span>]<span class="tok-type">u8</span>) ScalarDouble {</span> <span class="line" id="L580"> <span class="tok-kw">var</span> limbs: Limbs = <span class="tok-null">undefined</span>;</span> <span class="line" id="L581"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L582"> <span class="tok-kw">while</span> (i < <span class="tok-number">9</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L583"> limbs[i] = mem.readIntLittle(<span class="tok-type">u64</span>, bytes[i * <span class="tok-number">7</span> ..][<span class="tok-number">0</span>..<span class="tok-number">8</span>]) & <span class="tok-number">0xffffffffffffff</span>;</span> <span class="line" id="L584"> }</span> <span class="line" id="L585"> limbs[i] = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, bytes[i * <span class="tok-number">7</span>]);</span> <span class="line" id="L586"> <span class="tok-kw">return</span> ScalarDouble{ .limbs = limbs };</span> <span class="line" id="L587"> }</span> <span class="line" id="L588"></span> <span class="line" id="L589"> <span class="tok-kw">fn</span> <span class="tok-fn">fromBytes32</span>(bytes: CompressedScalar) ScalarDouble {</span> <span class="line" id="L590"> <span class="tok-kw">var</span> limbs: Limbs = <span class="tok-null">undefined</span>;</span> <span class="line" id="L591"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L592"> <span class="tok-kw">while</span> (i < <span class="tok-number">4</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L593"> limbs[i] = mem.readIntLittle(<span class="tok-type">u64</span>, bytes[i * <span class="tok-number">7</span> ..][<span class="tok-number">0</span>..<span class="tok-number">8</span>]) & <span class="tok-number">0xffffffffffffff</span>;</span> <span class="line" id="L594"> }</span> <span class="line" id="L595"> limbs[i] = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, mem.readIntLittle(<span class="tok-type">u32</span>, bytes[i * <span class="tok-number">7</span> ..][<span class="tok-number">0</span>..<span class="tok-number">4</span>]));</span> <span class="line" id="L596"> <span class="tok-builtin">@memset</span>(limbs[<span class="tok-number">5</span>..], <span class="tok-number">0</span>);</span> <span class="line" id="L597"> <span class="tok-kw">return</span> ScalarDouble{ .limbs = limbs };</span> <span class="line" id="L598"> }</span> <span class="line" id="L599"></span> <span class="line" id="L600"> <span class="tok-kw">fn</span> <span class="tok-fn">toBytes</span>(expanded_double: ScalarDouble) CompressedScalar {</span> <span class="line" id="L601"> <span class="tok-kw">return</span> expanded_double.reduce(<span class="tok-number">10</span>).toBytes();</span> <span class="line" id="L602"> }</span> <span class="line" id="L603"></span> <span class="line" id="L604"> <span class="tok-comment">/// Barrett reduction</span></span> <span class="line" id="L605"> <span class="tok-kw">fn</span> <span class="tok-fn">reduce</span>(expanded: ScalarDouble, <span class="tok-kw">comptime</span> limbs_count: <span class="tok-type">usize</span>) Scalar {</span> <span class="line" id="L606"> <span class="tok-kw">const</span> t = expanded.limbs;</span> <span class="line" id="L607"> <span class="tok-kw">const</span> t0 = <span class="tok-kw">if</span> (limbs_count <= <span class="tok-number">0</span>) <span class="tok-number">0</span> <span class="tok-kw">else</span> t[<span class="tok-number">0</span>];</span> <span class="line" id="L608"> <span class="tok-kw">const</span> t1 = <span class="tok-kw">if</span> (limbs_count <= <span class="tok-number">1</span>) <span class="tok-number">0</span> <span class="tok-kw">else</span> t[<span class="tok-number">1</span>];</span> <span class="line" id="L609"> <span class="tok-kw">const</span> t2 = <span class="tok-kw">if</span> (limbs_count <= <span class="tok-number">2</span>) <span class="tok-number">0</span> <span class="tok-kw">else</span> t[<span class="tok-number">2</span>];</span> <span class="line" id="L610"> <span class="tok-kw">const</span> t3 = <span class="tok-kw">if</span> (limbs_count <= <span class="tok-number">3</span>) <span class="tok-number">0</span> <span class="tok-kw">else</span> t[<span class="tok-number">3</span>];</span> <span class="line" id="L611"> <span class="tok-kw">const</span> t4 = <span class="tok-kw">if</span> (limbs_count <= <span class="tok-number">4</span>) <span class="tok-number">0</span> <span class="tok-kw">else</span> t[<span class="tok-number">4</span>];</span> <span class="line" id="L612"> <span class="tok-kw">const</span> t5 = <span class="tok-kw">if</span> (limbs_count <= <span class="tok-number">5</span>) <span class="tok-number">0</span> <span class="tok-kw">else</span> t[<span class="tok-number">5</span>];</span> <span class="line" id="L613"> <span class="tok-kw">const</span> t6 = <span class="tok-kw">if</span> (limbs_count <= <span class="tok-number">6</span>) <span class="tok-number">0</span> <span class="tok-kw">else</span> t[<span class="tok-number">6</span>];</span> <span class="line" id="L614"> <span class="tok-kw">const</span> t7 = <span class="tok-kw">if</span> (limbs_count <= <span class="tok-number">7</span>) <span class="tok-number">0</span> <span class="tok-kw">else</span> t[<span class="tok-number">7</span>];</span> <span class="line" id="L615"> <span class="tok-kw">const</span> t8 = <span class="tok-kw">if</span> (limbs_count <= <span class="tok-number">8</span>) <span class="tok-number">0</span> <span class="tok-kw">else</span> t[<span class="tok-number">8</span>];</span> <span class="line" id="L616"> <span class="tok-kw">const</span> t9 = <span class="tok-kw">if</span> (limbs_count <= <span class="tok-number">9</span>) <span class="tok-number">0</span> <span class="tok-kw">else</span> t[<span class="tok-number">9</span>];</span> <span class="line" id="L617"></span> <span class="line" id="L618"> <span class="tok-kw">const</span> m0: <span class="tok-type">u64</span> = <span class="tok-number">5175514460705773</span>;</span> <span class="line" id="L619"> <span class="tok-kw">const</span> m1: <span class="tok-type">u64</span> = <span class="tok-number">70332060721272408</span>;</span> <span class="line" id="L620"> <span class="tok-kw">const</span> m2: <span class="tok-type">u64</span> = <span class="tok-number">5342</span>;</span> <span class="line" id="L621"> <span class="tok-kw">const</span> m3: <span class="tok-type">u64</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L622"> <span class="tok-kw">const</span> m4: <span class="tok-type">u64</span> = <span class="tok-number">268435456</span>;</span> <span class="line" id="L623"> <span class="tok-kw">const</span> mu0: <span class="tok-type">u64</span> = <span class="tok-number">44162584779952923</span>;</span> <span class="line" id="L624"> <span class="tok-kw">const</span> mu1: <span class="tok-type">u64</span> = <span class="tok-number">9390964836247533</span>;</span> <span class="line" id="L625"> <span class="tok-kw">const</span> mu2: <span class="tok-type">u64</span> = <span class="tok-number">72057594036560134</span>;</span> <span class="line" id="L626"> <span class="tok-kw">const</span> mu3: <span class="tok-type">u64</span> = <span class="tok-number">0xffffffffffffff</span>;</span> <span class="line" id="L627"> <span class="tok-kw">const</span> mu4: <span class="tok-type">u64</span> = <span class="tok-number">68719476735</span>;</span> <span class="line" id="L628"></span> <span class="line" id="L629"> <span class="tok-kw">const</span> y_ = (t5 & <span class="tok-number">0xffffff</span>) << <span class="tok-number">32</span>;</span> <span class="line" id="L630"> <span class="tok-kw">const</span> x_ = t4 >> <span class="tok-number">24</span>;</span> <span class="line" id="L631"> <span class="tok-kw">const</span> z00 = x_ \| y_;</span> <span class="line" id="L632"> <span class="tok-kw">const</span> y_0 = (t6 & <span class="tok-number">0xffffff</span>) << <span class="tok-number">32</span>;</span> <span class="line" id="L633"> <span class="tok-kw">const</span> x_0 = t5 >> <span class="tok-number">24</span>;</span> <span class="line" id="L634"> <span class="tok-kw">const</span> z10 = x_0 \| y_0;</span> <span class="line" id="L635"> <span class="tok-kw">const</span> y_1 = (t7 & <span class="tok-number">0xffffff</span>) << <span class="tok-number">32</span>;</span> <span class="line" id="L636"> <span class="tok-kw">const</span> x_1 = t6 >> <span class="tok-number">24</span>;</span> <span class="line" id="L637"> <span class="tok-kw">const</span> z20 = x_1 \| y_1;</span> <span class="line" id="L638"> <span class="tok-kw">const</span> y_2 = (t8 & <span class="tok-number">0xffffff</span>) << <span class="tok-number">32</span>;</span> <span class="line" id="L639"> <span class="tok-kw">const</span> x_2 = t7 >> <span class="tok-number">24</span>;</span> <span class="line" id="L640"> <span class="tok-kw">const</span> z30 = x_2 \| y_2;</span> <span class="line" id="L641"> <span class="tok-kw">const</span> y_3 = (t9 & <span class="tok-number">0xffffff</span>) << <span class="tok-number">32</span>;</span> <span class="line" id="L642"> <span class="tok-kw">const</span> x_3 = t8 >> <span class="tok-number">24</span>;</span> <span class="line" id="L643"> <span class="tok-kw">const</span> z40 = x_3 \| y_3;</span> <span class="line" id="L644"> <span class="tok-kw">const</span> q0 = z00;</span> <span class="line" id="L645"> <span class="tok-kw">const</span> q1 = z10;</span> <span class="line" id="L646"> <span class="tok-kw">const</span> q2 = z20;</span> <span class="line" id="L647"> <span class="tok-kw">const</span> q3 = z30;</span> <span class="line" id="L648"> <span class="tok-kw">const</span> q4 = z40;</span> <span class="line" id="L649"></span> <span class="line" id="L650"> <span class="tok-kw">const</span> xy000 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q0) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu0);</span> <span class="line" id="L651"> <span class="tok-kw">const</span> xy010 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q0) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu1);</span> <span class="line" id="L652"> <span class="tok-kw">const</span> xy020 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q0) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu2);</span> <span class="line" id="L653"> <span class="tok-kw">const</span> xy030 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q0) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu3);</span> <span class="line" id="L654"> <span class="tok-kw">const</span> xy040 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q0) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu4);</span> <span class="line" id="L655"> <span class="tok-kw">const</span> xy100 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q1) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu0);</span> <span class="line" id="L656"> <span class="tok-kw">const</span> xy110 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q1) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu1);</span> <span class="line" id="L657"> <span class="tok-kw">const</span> xy120 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q1) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu2);</span> <span class="line" id="L658"> <span class="tok-kw">const</span> xy130 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q1) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu3);</span> <span class="line" id="L659"> <span class="tok-kw">const</span> xy14 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q1) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu4);</span> <span class="line" id="L660"> <span class="tok-kw">const</span> xy200 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q2) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu0);</span> <span class="line" id="L661"> <span class="tok-kw">const</span> xy210 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q2) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu1);</span> <span class="line" id="L662"> <span class="tok-kw">const</span> xy220 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q2) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu2);</span> <span class="line" id="L663"> <span class="tok-kw">const</span> xy23 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q2) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu3);</span> <span class="line" id="L664"> <span class="tok-kw">const</span> xy24 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q2) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu4);</span> <span class="line" id="L665"> <span class="tok-kw">const</span> xy300 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q3) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu0);</span> <span class="line" id="L666"> <span class="tok-kw">const</span> xy310 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q3) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu1);</span> <span class="line" id="L667"> <span class="tok-kw">const</span> xy32 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q3) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu2);</span> <span class="line" id="L668"> <span class="tok-kw">const</span> xy33 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q3) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu3);</span> <span class="line" id="L669"> <span class="tok-kw">const</span> xy34 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q3) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu4);</span> <span class="line" id="L670"> <span class="tok-kw">const</span> xy400 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q4) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu0);</span> <span class="line" id="L671"> <span class="tok-kw">const</span> xy41 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q4) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu1);</span> <span class="line" id="L672"> <span class="tok-kw">const</span> xy42 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q4) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu2);</span> <span class="line" id="L673"> <span class="tok-kw">const</span> xy43 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q4) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu3);</span> <span class="line" id="L674"> <span class="tok-kw">const</span> xy44 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, q4) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, mu4);</span> <span class="line" id="L675"> <span class="tok-kw">const</span> z01 = xy000;</span> <span class="line" id="L676"> <span class="tok-kw">const</span> z11 = xy010 + xy100;</span> <span class="line" id="L677"> <span class="tok-kw">const</span> z21 = xy020 + xy110 + xy200;</span> <span class="line" id="L678"> <span class="tok-kw">const</span> z31 = xy030 + xy120 + xy210 + xy300;</span> <span class="line" id="L679"> <span class="tok-kw">const</span> z41 = xy040 + xy130 + xy220 + xy310 + xy400;</span> <span class="line" id="L680"> <span class="tok-kw">const</span> z5 = xy14 + xy23 + xy32 + xy41;</span> <span class="line" id="L681"> <span class="tok-kw">const</span> z6 = xy24 + xy33 + xy42;</span> <span class="line" id="L682"> <span class="tok-kw">const</span> z7 = xy34 + xy43;</span> <span class="line" id="L683"> <span class="tok-kw">const</span> z8 = xy44;</span> <span class="line" id="L684"></span> <span class="line" id="L685"> <span class="tok-kw">const</span> carry0 = z01 >> <span class="tok-number">56</span>;</span> <span class="line" id="L686"> <span class="tok-kw">const</span> c00 = carry0;</span> <span class="line" id="L687"> <span class="tok-kw">const</span> carry1 = (z11 + c00) >> <span class="tok-number">56</span>;</span> <span class="line" id="L688"> <span class="tok-kw">const</span> c10 = carry1;</span> <span class="line" id="L689"> <span class="tok-kw">const</span> carry2 = (z21 + c10) >> <span class="tok-number">56</span>;</span> <span class="line" id="L690"> <span class="tok-kw">const</span> c20 = carry2;</span> <span class="line" id="L691"> <span class="tok-kw">const</span> carry3 = (z31 + c20) >> <span class="tok-number">56</span>;</span> <span class="line" id="L692"> <span class="tok-kw">const</span> c30 = carry3;</span> <span class="line" id="L693"> <span class="tok-kw">const</span> carry4 = (z41 + c30) >> <span class="tok-number">56</span>;</span> <span class="line" id="L694"> <span class="tok-kw">const</span> t103 = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(z41 + c30))) & <span class="tok-number">0xffffffffffffff</span>;</span> <span class="line" id="L695"> <span class="tok-kw">const</span> c40 = carry4;</span> <span class="line" id="L696"> <span class="tok-kw">const</span> t410 = t103;</span> <span class="line" id="L697"> <span class="tok-kw">const</span> carry5 = (z5 + c40) >> <span class="tok-number">56</span>;</span> <span class="line" id="L698"> <span class="tok-kw">const</span> t104 = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(z5 + c40))) & <span class="tok-number">0xffffffffffffff</span>;</span> <span class="line" id="L699"> <span class="tok-kw">const</span> c5 = carry5;</span> <span class="line" id="L700"> <span class="tok-kw">const</span> t51 = t104;</span> <span class="line" id="L701"> <span class="tok-kw">const</span> carry6 = (z6 + c5) >> <span class="tok-number">56</span>;</span> <span class="line" id="L702"> <span class="tok-kw">const</span> t105 = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(z6 + c5))) & <span class="tok-number">0xffffffffffffff</span>;</span> <span class="line" id="L703"> <span class="tok-kw">const</span> c6 = carry6;</span> <span class="line" id="L704"> <span class="tok-kw">const</span> t61 = t105;</span> <span class="line" id="L705"> <span class="tok-kw">const</span> carry7 = (z7 + c6) >> <span class="tok-number">56</span>;</span> <span class="line" id="L706"> <span class="tok-kw">const</span> t106 = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(z7 + c6))) & <span class="tok-number">0xffffffffffffff</span>;</span> <span class="line" id="L707"> <span class="tok-kw">const</span> c7 = carry7;</span> <span class="line" id="L708"> <span class="tok-kw">const</span> t71 = t106;</span> <span class="line" id="L709"> <span class="tok-kw">const</span> carry8 = (z8 + c7) >> <span class="tok-number">56</span>;</span> <span class="line" id="L710"> <span class="tok-kw">const</span> t107 = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(z8 + c7))) & <span class="tok-number">0xffffffffffffff</span>;</span> <span class="line" id="L711"> <span class="tok-kw">const</span> c8 = carry8;</span> <span class="line" id="L712"> <span class="tok-kw">const</span> t81 = t107;</span> <span class="line" id="L713"> <span class="tok-kw">const</span> t91 = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(c8)));</span> <span class="line" id="L714"></span> <span class="line" id="L715"> <span class="tok-kw">const</span> qmu4_ = t410;</span> <span class="line" id="L716"> <span class="tok-kw">const</span> qmu5_ = t51;</span> <span class="line" id="L717"> <span class="tok-kw">const</span> qmu6_ = t61;</span> <span class="line" id="L718"> <span class="tok-kw">const</span> qmu7_ = t71;</span> <span class="line" id="L719"> <span class="tok-kw">const</span> qmu8_ = t81;</span> <span class="line" id="L720"> <span class="tok-kw">const</span> qmu9_ = t91;</span> <span class="line" id="L721"> <span class="tok-kw">const</span> y_4 = (qmu5_ & <span class="tok-number">0xffffffffff</span>) << <span class="tok-number">16</span>;</span> <span class="line" id="L722"> <span class="tok-kw">const</span> x_4 = qmu4_ >> <span class="tok-number">40</span>;</span> <span class="line" id="L723"> <span class="tok-kw">const</span> z02 = x_4 \| y_4;</span> <span class="line" id="L724"> <span class="tok-kw">const</span> y_5 = (qmu6_ & <span class="tok-number">0xffffffffff</span>) << <span class="tok-number">16</span>;</span> <span class="line" id="L725"> <span class="tok-kw">const</span> x_5 = qmu5_ >> <span class="tok-number">40</span>;</span> <span class="line" id="L726"> <span class="tok-kw">const</span> z12 = x_5 \| y_5;</span> <span class="line" id="L727"> <span class="tok-kw">const</span> y_6 = (qmu7_ & <span class="tok-number">0xffffffffff</span>) << <span class="tok-number">16</span>;</span> <span class="line" id="L728"> <span class="tok-kw">const</span> x_6 = qmu6_ >> <span class="tok-number">40</span>;</span> <span class="line" id="L729"> <span class="tok-kw">const</span> z22 = x_6 \| y_6;</span> <span class="line" id="L730"> <span class="tok-kw">const</span> y_7 = (qmu8_ & <span class="tok-number">0xffffffffff</span>) << <span class="tok-number">16</span>;</span> <span class="line" id="L731"> <span class="tok-kw">const</span> x_7 = qmu7_ >> <span class="tok-number">40</span>;</span> <span class="line" id="L732"> <span class="tok-kw">const</span> z32 = x_7 \| y_7;</span> <span class="line" id="L733"> <span class="tok-kw">const</span> y_8 = (qmu9_ & <span class="tok-number">0xffffffffff</span>) << <span class="tok-number">16</span>;</span> <span class="line" id="L734"> <span class="tok-kw">const</span> x_8 = qmu8_ >> <span class="tok-number">40</span>;</span> <span class="line" id="L735"> <span class="tok-kw">const</span> z42 = x_8 \| y_8;</span> <span class="line" id="L736"> <span class="tok-kw">const</span> qdiv0 = z02;</span> <span class="line" id="L737"> <span class="tok-kw">const</span> qdiv1 = z12;</span> <span class="line" id="L738"> <span class="tok-kw">const</span> qdiv2 = z22;</span> <span class="line" id="L739"> <span class="tok-kw">const</span> qdiv3 = z32;</span> <span class="line" id="L740"> <span class="tok-kw">const</span> qdiv4 = z42;</span> <span class="line" id="L741"> <span class="tok-kw">const</span> r0 = t0;</span> <span class="line" id="L742"> <span class="tok-kw">const</span> r1 = t1;</span> <span class="line" id="L743"> <span class="tok-kw">const</span> r2 = t2;</span> <span class="line" id="L744"> <span class="tok-kw">const</span> r3 = t3;</span> <span class="line" id="L745"> <span class="tok-kw">const</span> r4 = t4 & <span class="tok-number">0xffffffffff</span>;</span> <span class="line" id="L746"></span> <span class="line" id="L747"> <span class="tok-kw">const</span> xy00 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, qdiv0) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, m0);</span> <span class="line" id="L748"> <span class="tok-kw">const</span> xy01 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, qdiv0) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, m1);</span> <span class="line" id="L749"> <span class="tok-kw">const</span> xy02 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, qdiv0) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, m2);</span> <span class="line" id="L750"> <span class="tok-kw">const</span> xy03 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, qdiv0) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, m3);</span> <span class="line" id="L751"> <span class="tok-kw">const</span> xy04 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, qdiv0) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, m4);</span> <span class="line" id="L752"> <span class="tok-kw">const</span> xy10 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, qdiv1) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, m0);</span> <span class="line" id="L753"> <span class="tok-kw">const</span> xy11 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, qdiv1) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, m1);</span> <span class="line" id="L754"> <span class="tok-kw">const</span> xy12 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, qdiv1) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, m2);</span> <span class="line" id="L755"> <span class="tok-kw">const</span> xy13 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, qdiv1) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, m3);</span> <span class="line" id="L756"> <span class="tok-kw">const</span> xy20 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, qdiv2) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, m0);</span> <span class="line" id="L757"> <span class="tok-kw">const</span> xy21 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, qdiv2) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, m1);</span> <span class="line" id="L758"> <span class="tok-kw">const</span> xy22 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, qdiv2) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, m2);</span> <span class="line" id="L759"> <span class="tok-kw">const</span> xy30 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, qdiv3) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, m0);</span> <span class="line" id="L760"> <span class="tok-kw">const</span> xy31 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, qdiv3) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, m1);</span> <span class="line" id="L761"> <span class="tok-kw">const</span> xy40 = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, qdiv4) * <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, m0);</span> <span class="line" id="L762"> <span class="tok-kw">const</span> carry9 = xy00 >> <span class="tok-number">56</span>;</span> <span class="line" id="L763"> <span class="tok-kw">const</span> t108 = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(xy00)) & <span class="tok-number">0xffffffffffffff</span>;</span> <span class="line" id="L764"> <span class="tok-kw">const</span> c0 = carry9;</span> <span class="line" id="L765"> <span class="tok-kw">const</span> t010 = t108;</span> <span class="line" id="L766"> <span class="tok-kw">const</span> carry10 = (xy01 + xy10 + c0) >> <span class="tok-number">56</span>;</span> <span class="line" id="L767"> <span class="tok-kw">const</span> t109 = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(xy01 + xy10 + c0)) & <span class="tok-number">0xffffffffffffff</span>;</span> <span class="line" id="L768"> <span class="tok-kw">const</span> c11 = carry10;</span> <span class="line" id="L769"> <span class="tok-kw">const</span> t110 = t109;</span> <span class="line" id="L770"> <span class="tok-kw">const</span> carry11 = (xy02 + xy11 + xy20 + c11) >> <span class="tok-number">56</span>;</span> <span class="line" id="L771"> <span class="tok-kw">const</span> t1010 = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(xy02 + xy11 + xy20 + c11)) & <span class="tok-number">0xffffffffffffff</span>;</span> <span class="line" id="L772"> <span class="tok-kw">const</span> c21 = carry11;</span> <span class="line" id="L773"> <span class="tok-kw">const</span> t210 = t1010;</span> <span class="line" id="L774"> <span class="tok-kw">const</span> carry = (xy03 + xy12 + xy21 + xy30 + c21) >> <span class="tok-number">56</span>;</span> <span class="line" id="L775"> <span class="tok-kw">const</span> t1011 = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(xy03 + xy12 + xy21 + xy30 + c21)) & <span class="tok-number">0xffffffffffffff</span>;</span> <span class="line" id="L776"> <span class="tok-kw">const</span> c31 = carry;</span> <span class="line" id="L777"> <span class="tok-kw">const</span> t310 = t1011;</span> <span class="line" id="L778"> <span class="tok-kw">const</span> t411 = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(xy04 + xy13 + xy22 + xy31 + xy40 + c31)) & <span class="tok-number">0xffffffffff</span>;</span> <span class="line" id="L779"></span> <span class="line" id="L780"> <span class="tok-kw">const</span> qmul0 = t010;</span> <span class="line" id="L781"> <span class="tok-kw">const</span> qmul1 = t110;</span> <span class="line" id="L782"> <span class="tok-kw">const</span> qmul2 = t210;</span> <span class="line" id="L783"> <span class="tok-kw">const</span> qmul3 = t310;</span> <span class="line" id="L784"> <span class="tok-kw">const</span> qmul4 = t411;</span> <span class="line" id="L785"> <span class="tok-kw">const</span> b5 = (r0 -% qmul0) >> <span class="tok-number">63</span>;</span> <span class="line" id="L786"> <span class="tok-kw">const</span> t1012 = ((b5 << <span class="tok-number">56</span>) + r0) -% qmul0;</span> <span class="line" id="L787"> <span class="tok-kw">const</span> c1 = b5;</span> <span class="line" id="L788"> <span class="tok-kw">const</span> t011 = t1012;</span> <span class="line" id="L789"> <span class="tok-kw">const</span> b6 = (r1 -% (qmul1 + c1)) >> <span class="tok-number">63</span>;</span> <span class="line" id="L790"> <span class="tok-kw">const</span> t1013 = ((b6 << <span class="tok-number">56</span>) + r1) -% (qmul1 + c1);</span> <span class="line" id="L791"> <span class="tok-kw">const</span> c2 = b6;</span> <span class="line" id="L792"> <span class="tok-kw">const</span> t111 = t1013;</span> <span class="line" id="L793"> <span class="tok-kw">const</span> b7 = (r2 -% (qmul2 + c2)) >> <span class="tok-number">63</span>;</span> <span class="line" id="L794"> <span class="tok-kw">const</span> t1014 = ((b7 << <span class="tok-number">56</span>) + r2) -% (qmul2 + c2);</span> <span class="line" id="L795"> <span class="tok-kw">const</span> c3 = b7;</span> <span class="line" id="L796"> <span class="tok-kw">const</span> t211 = t1014;</span> <span class="line" id="L797"> <span class="tok-kw">const</span> b8 = (r3 -% (qmul3 + c3)) >> <span class="tok-number">63</span>;</span> <span class="line" id="L798"> <span class="tok-kw">const</span> t1015 = ((b8 << <span class="tok-number">56</span>) + r3) -% (qmul3 + c3);</span> <span class="line" id="L799"> <span class="tok-kw">const</span> c4 = b8;</span> <span class="line" id="L800"> <span class="tok-kw">const</span> t311 = t1015;</span> <span class="line" id="L801"> <span class="tok-kw">const</span> b9 = (r4 -% (qmul4 + c4)) >> <span class="tok-number">63</span>;</span> <span class="line" id="L802"> <span class="tok-kw">const</span> t1016 = ((b9 << <span class="tok-number">40</span>) + r4) -% (qmul4 + c4);</span> <span class="line" id="L803"> <span class="tok-kw">const</span> t412 = t1016;</span> <span class="line" id="L804"> <span class="tok-kw">const</span> s0 = t011;</span> <span class="line" id="L805"> <span class="tok-kw">const</span> s1 = t111;</span> <span class="line" id="L806"> <span class="tok-kw">const</span> s2 = t211;</span> <span class="line" id="L807"> <span class="tok-kw">const</span> s3 = t311;</span> <span class="line" id="L808"> <span class="tok-kw">const</span> s4 = t412;</span> <span class="line" id="L809"></span> <span class="line" id="L810"> <span class="tok-kw">const</span> y0: <span class="tok-type">u64</span> = <span class="tok-number">5175514460705773</span>;</span> <span class="line" id="L811"> <span class="tok-kw">const</span> y1: <span class="tok-type">u64</span> = <span class="tok-number">70332060721272408</span>;</span> <span class="line" id="L812"> <span class="tok-kw">const</span> y2: <span class="tok-type">u64</span> = <span class="tok-number">5342</span>;</span> <span class="line" id="L813"> <span class="tok-kw">const</span> y3: <span class="tok-type">u64</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L814"> <span class="tok-kw">const</span> y4: <span class="tok-type">u64</span> = <span class="tok-number">268435456</span>;</span> <span class="line" id="L815"></span> <span class="line" id="L816"> <span class="tok-kw">const</span> b10 = (s0 -% y0) >> <span class="tok-number">63</span>;</span> <span class="line" id="L817"> <span class="tok-kw">const</span> t1017 = ((b10 << <span class="tok-number">56</span>) + s0) -% y0;</span> <span class="line" id="L818"> <span class="tok-kw">const</span> b0 = b10;</span> <span class="line" id="L819"> <span class="tok-kw">const</span> t01 = t1017;</span> <span class="line" id="L820"> <span class="tok-kw">const</span> b11 = (s1 -% (y1 + b0)) >> <span class="tok-number">63</span>;</span> <span class="line" id="L821"> <span class="tok-kw">const</span> t1018 = ((b11 << <span class="tok-number">56</span>) + s1) -% (y1 + b0);</span> <span class="line" id="L822"> <span class="tok-kw">const</span> b1 = b11;</span> <span class="line" id="L823"> <span class="tok-kw">const</span> t11 = t1018;</span> <span class="line" id="L824"> <span class="tok-kw">const</span> b12 = (s2 -% (y2 + b1)) >> <span class="tok-number">63</span>;</span> <span class="line" id="L825"> <span class="tok-kw">const</span> t1019 = ((b12 << <span class="tok-number">56</span>) + s2) -% (y2 + b1);</span> <span class="line" id="L826"> <span class="tok-kw">const</span> b2 = b12;</span> <span class="line" id="L827"> <span class="tok-kw">const</span> t21 = t1019;</span> <span class="line" id="L828"> <span class="tok-kw">const</span> b13 = (s3 -% (y3 + b2)) >> <span class="tok-number">63</span>;</span> <span class="line" id="L829"> <span class="tok-kw">const</span> t1020 = ((b13 << <span class="tok-number">56</span>) + s3) -% (y3 + b2);</span> <span class="line" id="L830"> <span class="tok-kw">const</span> b3 = b13;</span> <span class="line" id="L831"> <span class="tok-kw">const</span> t31 = t1020;</span> <span class="line" id="L832"> <span class="tok-kw">const</span> b = (s4 -% (y4 + b3)) >> <span class="tok-number">63</span>;</span> <span class="line" id="L833"> <span class="tok-kw">const</span> t10 = ((b << <span class="tok-number">56</span>) + s4) -% (y4 + b3);</span> <span class="line" id="L834"> <span class="tok-kw">const</span> b4 = b;</span> <span class="line" id="L835"> <span class="tok-kw">const</span> t41 = t10;</span> <span class="line" id="L836"> <span class="tok-kw">const</span> mask = b4 -% <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-number">1</span>));</span> <span class="line" id="L837"> <span class="tok-kw">const</span> z03 = s0 ^ (mask & (s0 ^ t01));</span> <span class="line" id="L838"> <span class="tok-kw">const</span> z13 = s1 ^ (mask & (s1 ^ t11));</span> <span class="line" id="L839"> <span class="tok-kw">const</span> z23 = s2 ^ (mask & (s2 ^ t21));</span> <span class="line" id="L840"> <span class="tok-kw">const</span> z33 = s3 ^ (mask & (s3 ^ t31));</span> <span class="line" id="L841"> <span class="tok-kw">const</span> z43 = s4 ^ (mask & (s4 ^ t41));</span> <span class="line" id="L842"></span> <span class="line" id="L843"> <span class="tok-kw">return</span> Scalar{ .limbs = .{ z03, z13, z23, z33, z43 } };</span> <span class="line" id="L844"> }</span> <span class="line" id="L845">};</span> <span class="line" id="L846"></span> <span class="line" id="L847"><span class="tok-kw">test</span> <span class="tok-str">"scalar25519"</span> {</span> <span class="line" id="L848"> <span class="tok-kw">const</span> bytes: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = .{ <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">8</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">8</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">8</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">255</span> };</span> <span class="line" id="L849"> <span class="tok-kw">var</span> x = Scalar.fromBytes(bytes);</span> <span class="line" id="L850"> <span class="tok-kw">var</span> y = x.toBytes();</span> <span class="line" id="L851"> <span class="tok-kw">try</span> rejectNonCanonical(y);</span> <span class="line" id="L852"> <span class="tok-kw">var</span> buf: [<span class="tok-number">128</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L853"> <span class="tok-kw">try</span> std.testing.expectEqualStrings(<span class="tok-kw">try</span> std.fmt.bufPrint(&buf, <span class="tok-str">"{s}"</span>, .{std.fmt.fmtSliceHexUpper(&y)}), <span class="tok-str">"1E979B917937F3DE71D18077F961F6CEFF01030405060708010203040506070F"</span>);</span> <span class="line" id="L854"></span> <span class="line" id="L855"> <span class="tok-kw">const</span> reduced = reduce(field_order_s);</span> <span class="line" id="L856"> <span class="tok-kw">try</span> std.testing.expectEqualStrings(<span class="tok-kw">try</span> std.fmt.bufPrint(&buf, <span class="tok-str">"{s}"</span>, .{std.fmt.fmtSliceHexUpper(&reduced)}), <span class="tok-str">"0000000000000000000000000000000000000000000000000000000000000000"</span>);</span> <span class="line" id="L857">}</span> <span class="line" id="L858"></span> <span class="line" id="L859"><span class="tok-kw">test</span> <span class="tok-str">"non-canonical scalar25519"</span> {</span> <span class="line" id="L860"> <span class="tok-kw">const</span> too_targe: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = .{ <span class="tok-number">0xed</span>, <span class="tok-number">0xd3</span>, <span class="tok-number">0xf5</span>, <span class="tok-number">0x5c</span>, <span class="tok-number">0x1a</span>, <span class="tok-number">0x63</span>, <span class="tok-number">0x12</span>, <span class="tok-number">0x58</span>, <span class="tok-number">0xd6</span>, <span class="tok-number">0x9c</span>, <span class="tok-number">0xf7</span>, <span class="tok-number">0xa2</span>, <span class="tok-number">0xde</span>, <span class="tok-number">0xf9</span>, <span class="tok-number">0xde</span>, <span class="tok-number">0x14</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x10</span> };</span> <span class="line" id="L861"> <span class="tok-kw">try</span> std.testing.expectError(<span class="tok-kw">error</span>.NonCanonical, rejectNonCanonical(too_targe));</span> <span class="line" id="L862">}</span> <span class="line" id="L863"></span> <span class="line" id="L864"><span class="tok-kw">test</span> <span class="tok-str">"mulAdd overflow check"</span> {</span> <span class="line" id="L865"> <span class="tok-kw">const</span> a: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = [_]<span class="tok-type">u8</span>{<span class="tok-number">0xff</span>} <span class="tok-number">32</span>;</span> <span class="line" id="L866"> <span class="tok-kw">const</span> b: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = [_]<span class="tok-type">u8</span>{<span class="tok-number">0xff</span>} <span class="tok-number">32</span>;</span> <span class="line" id="L867"> <span class="tok-kw">const</span> c: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = [_]<span class="tok-type">u8</span>{<span class="tok-number">0xff</span>} <span class="tok-number">32</span>;</span> <span class="line" id="L868"> <span class="tok-kw">const</span> x = mulAdd(a, b, c);</span> <span class="line" id="L869"> <span class="tok-kw">var</span> buf: [<span class="tok-number">128</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L870"> <span class="tok-kw">try</span> std.testing.expectEqualStrings(<span class="tok-kw">try</span> std.fmt.bufPrint(&buf, <span class="tok-str">"{s}"</span>, .{std.fmt.fmtSliceHexUpper(&x)}), <span class="tok-str">"D14DF91389432C25AD60FF9791B9FD1D67BEF517D273ECCE3D9A307C1B419903"</span>);</span> <span class="line" id="L871">}</span> <span class="line" id="L872"></span> <span class="line" id="L873"><span class="tok-kw">test</span> <span class="tok-str">"scalar field inversion"</span> {</span> <span class="line" id="L874"> <span class="tok-kw">const</span> bytes: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = .{ <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">8</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">8</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">8</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">8</span> };</span> <span class="line" id="L875"> <span class="tok-kw">const</span> x = Scalar.fromBytes(bytes);</span> <span class="line" id="L876"> <span class="tok-kw">const</span> inv = x.invert();</span> <span class="line" id="L877"> <span class="tok-kw">const</span> recovered_x = inv.invert();</span> <span class="line" id="L878"> <span class="tok-kw">try</span> std.testing.expectEqualSlices(<span class="tok-type">u8</span>, &bytes, &recovered_x.toBytes());</span> <span class="line" id="L879">}</span> <span class="line" id="L880"></span> <span class="line" id="L881"><span class="tok-kw">test</span> <span class="tok-str">"random scalar"</span> {</span> <span class="line" id="L882"> <span class="tok-kw">const</span> s1 = random();</span> <span class="line" id="L883"> <span class="tok-kw">const</span> s2 = random();</span> <span class="line" id="L884"> <span class="tok-kw">try</span> std.testing.expect(!mem.eql(<span class="tok-type">u8</span>, &s1, &s2));</span> <span class="line" id="L885">}</span> <span class="line" id="L886"></span> <span class="line" id="L887"><span class="tok-kw">test</span> <span class="tok-str">"64-bit reduction"</span> {</span> <span class="line" id="L888"> <span class="tok-kw">const</span> bytes = field_order_s ++ [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} <span class="tok-number">32</span>;</span> <span class="line" id="L889"> <span class="tok-kw">const</span> x = Scalar.fromBytes64(bytes);</span> <span class="line" id="L890"> <span class="tok-kw">try</span> std.testing.expect(x.isZero());</span> <span class="line" id="L891">}</span> <span class="line" id="L892"></span> </code></pre></body> </html>
repos/yazap/docs/src/std/crypto	repos/yazap/docs/src/std/crypto/25519/field.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/25519/field.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> builtin = <span class="tok-builtin">@import</span>(<span class="tok-str">"builtin"</span>);</span> <span class="line" id="L3"><span class="tok-kw">const</span> crypto = std.crypto;</span> <span class="line" id="L4"><span class="tok-kw">const</span> readIntLittle = std.mem.readIntLittle;</span> <span class="line" id="L5"><span class="tok-kw">const</span> writeIntLittle = std.mem.writeIntLittle;</span> <span class="line" id="L6"></span> <span class="line" id="L7"><span class="tok-kw">const</span> NonCanonicalError = crypto.errors.NonCanonicalError;</span> <span class="line" id="L8"><span class="tok-kw">const</span> NotSquareError = crypto.errors.NotSquareError;</span> <span class="line" id="L9"></span> <span class="line" id="L10"><span class="tok-comment">// Inline conditionally, when it can result in large code generation.</span> </span> <span class="line" id="L11"><span class="tok-kw">const</span> bloaty_inline = <span class="tok-kw">switch</span> (builtin.mode) {</span> <span class="line" id="L12"> .ReleaseSafe, .ReleaseFast => .Inline,</span> <span class="line" id="L13"> .Debug, .ReleaseSmall => .Unspecified,</span> <span class="line" id="L14">};</span> <span class="line" id="L15"></span> <span class="line" id="L16"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Fe = <span class="tok-kw">struct</span> {</span> <span class="line" id="L17"> limbs: [<span class="tok-number">5</span>]<span class="tok-type">u64</span>,</span> <span class="line" id="L18"></span> <span class="line" id="L19"> <span class="tok-kw">const</span> MASK51: <span class="tok-type">u64</span> = <span class="tok-number">0x7ffffffffffff</span>;</span> <span class="line" id="L20"></span> <span class="line" id="L21"> <span class="tok-comment">/// 0</span></span> <span class="line" id="L22"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> zero = Fe{ .limbs = .{ <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span> } };</span> <span class="line" id="L23"></span> <span class="line" id="L24"> <span class="tok-comment">/// 1</span></span> <span class="line" id="L25"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> one = Fe{ .limbs = .{ <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span> } };</span> <span class="line" id="L26"></span> <span class="line" id="L27"> <span class="tok-comment">/// sqrt(-1)</span></span> <span class="line" id="L28"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> sqrtm1 = Fe{ .limbs = .{ <span class="tok-number">1718705420411056</span>, <span class="tok-number">234908883556509</span>, <span class="tok-number">2233514472574048</span>, <span class="tok-number">2117202627021982</span>, <span class="tok-number">765476049583133</span> } };</span> <span class="line" id="L29"></span> <span class="line" id="L30"> <span class="tok-comment">/// The Curve25519 base point</span></span> <span class="line" id="L31"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> curve25519BasePoint = Fe{ .limbs = .{ <span class="tok-number">9</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span> } };</span> <span class="line" id="L32"></span> <span class="line" id="L33"> <span class="tok-comment">/// Edwards25519 d = 37095705934669439343138083508754565189542113879843219016388785533085940283555</span></span> <span class="line" id="L34"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> edwards25519d = Fe{ .limbs = .{ <span class="tok-number">929955233495203</span>, <span class="tok-number">466365720129213</span>, <span class="tok-number">1662059464998953</span>, <span class="tok-number">2033849074728123</span>, <span class="tok-number">1442794654840575</span> } };</span> <span class="line" id="L35"></span> <span class="line" id="L36"> <span class="tok-comment">/// Edwards25519 2d</span></span> <span class="line" id="L37"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> edwards25519d2 = Fe{ .limbs = .{ <span class="tok-number">1859910466990425</span>, <span class="tok-number">932731440258426</span>, <span class="tok-number">1072319116312658</span>, <span class="tok-number">1815898335770999</span>, <span class="tok-number">633789495995903</span> } };</span> <span class="line" id="L38"></span> <span class="line" id="L39"> <span class="tok-comment">/// Edwards25519 1/sqrt(a-d)</span></span> <span class="line" id="L40"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> edwards25519sqrtamd = Fe{ .limbs = .{ <span class="tok-number">278908739862762</span>, <span class="tok-number">821645201101625</span>, <span class="tok-number">8113234426968</span>, <span class="tok-number">1777959178193151</span>, <span class="tok-number">2118520810568447</span> } };</span> <span class="line" id="L41"></span> <span class="line" id="L42"> <span class="tok-comment">/// Edwards25519 1-d^2</span></span> <span class="line" id="L43"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> edwards25519eonemsqd = Fe{ .limbs = .{ <span class="tok-number">1136626929484150</span>, <span class="tok-number">1998550399581263</span>, <span class="tok-number">496427632559748</span>, <span class="tok-number">118527312129759</span>, <span class="tok-number">45110755273534</span> } };</span> <span class="line" id="L44"></span> <span class="line" id="L45"> <span class="tok-comment">/// Edwards25519 (d-1)^2</span></span> <span class="line" id="L46"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> edwards25519sqdmone = Fe{ .limbs = .{ <span class="tok-number">1507062230895904</span>, <span class="tok-number">1572317787530805</span>, <span class="tok-number">683053064812840</span>, <span class="tok-number">317374165784489</span>, <span class="tok-number">1572899562415810</span> } };</span> <span class="line" id="L47"></span> <span class="line" id="L48"> <span class="tok-comment">/// Edwards25519 sqrt(ad-1) with a = -1 (mod p)</span></span> <span class="line" id="L49"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> edwards25519sqrtadm1 = Fe{ .limbs = .{ <span class="tok-number">2241493124984347</span>, <span class="tok-number">425987919032274</span>, <span class="tok-number">2207028919301688</span>, <span class="tok-number">1220490630685848</span>, <span class="tok-number">974799131293748</span> } };</span> <span class="line" id="L50"></span> <span class="line" id="L51"> <span class="tok-comment">/// Edwards25519 A, as a single limb</span></span> <span class="line" id="L52"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> edwards25519a_32: <span class="tok-type">u32</span> = <span class="tok-number">486662</span>;</span> <span class="line" id="L53"></span> <span class="line" id="L54"> <span class="tok-comment">/// Edwards25519 A</span></span> <span class="line" id="L55"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> edwards25519a = Fe{ .limbs = .{ <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, edwards25519a_32), <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span> } };</span> <span class="line" id="L56"></span> <span class="line" id="L57"> <span class="tok-comment">/// Edwards25519 sqrt(A-2)</span></span> <span class="line" id="L58"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> edwards25519sqrtam2 = Fe{ .limbs = .{ <span class="tok-number">1693982333959686</span>, <span class="tok-number">608509411481997</span>, <span class="tok-number">2235573344831311</span>, <span class="tok-number">947681270984193</span>, <span class="tok-number">266558006233600</span> } };</span> <span class="line" id="L59"></span> <span class="line" id="L60"> <span class="tok-comment">/// Return true if the field element is zero</span></span> <span class="line" id="L61"> <span class="tok-kw">pub</span> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">isZero</span>(fe: Fe) <span class="tok-type">bool</span> {</span> <span class="line" id="L62"> <span class="tok-kw">var</span> reduced = fe;</span> <span class="line" id="L63"> reduced.reduce();</span> <span class="line" id="L64"> <span class="tok-kw">const</span> limbs = reduced.limbs;</span> <span class="line" id="L65"> <span class="tok-kw">return</span> (limbs[<span class="tok-number">0</span>] \| limbs[<span class="tok-number">1</span>] \| limbs[<span class="tok-number">2</span>] \| limbs[<span class="tok-number">3</span>] \| limbs[<span class="tok-number">4</span>]) == <span class="tok-number">0</span>;</span> <span class="line" id="L66"> }</span> <span class="line" id="L67"></span> <span class="line" id="L68"> <span class="tok-comment">/// Return true if both field elements are equivalent</span></span> <span class="line" id="L69"> <span class="tok-kw">pub</span> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">equivalent</span>(a: Fe, b: Fe) <span class="tok-type">bool</span> {</span> <span class="line" id="L70"> <span class="tok-kw">return</span> a.sub(b).isZero();</span> <span class="line" id="L71"> }</span> <span class="line" id="L72"></span> <span class="line" id="L73"> <span class="tok-comment">/// Unpack a field element</span></span> <span class="line" id="L74"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromBytes</span>(s: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>) Fe {</span> <span class="line" id="L75"> <span class="tok-kw">var</span> fe: Fe = <span class="tok-null">undefined</span>;</span> <span class="line" id="L76"> fe.limbs[<span class="tok-number">0</span>] = readIntLittle(<span class="tok-type">u64</span>, s[<span class="tok-number">0</span>..<span class="tok-number">8</span>]) & MASK51;</span> <span class="line" id="L77"> fe.limbs[<span class="tok-number">1</span>] = (readIntLittle(<span class="tok-type">u64</span>, s[<span class="tok-number">6</span>..<span class="tok-number">14</span>]) >> <span class="tok-number">3</span>) & MASK51;</span> <span class="line" id="L78"> fe.limbs[<span class="tok-number">2</span>] = (readIntLittle(<span class="tok-type">u64</span>, s[<span class="tok-number">12</span>..<span class="tok-number">20</span>]) >> <span class="tok-number">6</span>) & MASK51;</span> <span class="line" id="L79"> fe.limbs[<span class="tok-number">3</span>] = (readIntLittle(<span class="tok-type">u64</span>, s[<span class="tok-number">19</span>..<span class="tok-number">27</span>]) >> <span class="tok-number">1</span>) & MASK51;</span> <span class="line" id="L80"> fe.limbs[<span class="tok-number">4</span>] = (readIntLittle(<span class="tok-type">u64</span>, s[<span class="tok-number">24</span>..<span class="tok-number">32</span>]) >> <span class="tok-number">12</span>) & MASK51;</span> <span class="line" id="L81"></span> <span class="line" id="L82"> <span class="tok-kw">return</span> fe;</span> <span class="line" id="L83"> }</span> <span class="line" id="L84"></span> <span class="line" id="L85"> <span class="tok-comment">/// Pack a field element</span></span> <span class="line" id="L86"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toBytes</span>(fe: Fe) [<span class="tok-number">32</span>]<span class="tok-type">u8</span> {</span> <span class="line" id="L87"> <span class="tok-kw">var</span> reduced = fe;</span> <span class="line" id="L88"> reduced.reduce();</span> <span class="line" id="L89"> <span class="tok-kw">var</span> s: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L90"> writeIntLittle(<span class="tok-type">u64</span>, s[<span class="tok-number">0</span>..<span class="tok-number">8</span>], reduced.limbs[<span class="tok-number">0</span>] \| (reduced.limbs[<span class="tok-number">1</span>] << <span class="tok-number">51</span>));</span> <span class="line" id="L91"> writeIntLittle(<span class="tok-type">u64</span>, s[<span class="tok-number">8</span>..<span class="tok-number">16</span>], (reduced.limbs[<span class="tok-number">1</span>] >> <span class="tok-number">13</span>) \| (reduced.limbs[<span class="tok-number">2</span>] << <span class="tok-number">38</span>));</span> <span class="line" id="L92"> writeIntLittle(<span class="tok-type">u64</span>, s[<span class="tok-number">16</span>..<span class="tok-number">24</span>], (reduced.limbs[<span class="tok-number">2</span>] >> <span class="tok-number">26</span>) \| (reduced.limbs[<span class="tok-number">3</span>] << <span class="tok-number">25</span>));</span> <span class="line" id="L93"> writeIntLittle(<span class="tok-type">u64</span>, s[<span class="tok-number">24</span>..<span class="tok-number">32</span>], (reduced.limbs[<span class="tok-number">3</span>] >> <span class="tok-number">39</span>) \| (reduced.limbs[<span class="tok-number">4</span>] << <span class="tok-number">12</span>));</span> <span class="line" id="L94"></span> <span class="line" id="L95"> <span class="tok-kw">return</span> s;</span> <span class="line" id="L96"> }</span> <span class="line" id="L97"></span> <span class="line" id="L98"> <span class="tok-comment">/// Map a 64 bytes big endian string into a field element</span></span> <span class="line" id="L99"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromBytes64</span>(s: [<span class="tok-number">64</span>]<span class="tok-type">u8</span>) Fe {</span> <span class="line" id="L100"> <span class="tok-kw">var</span> fl: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L101"> <span class="tok-kw">var</span> gl: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L102"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L103"> <span class="tok-kw">while</span> (i < <span class="tok-number">32</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L104"> fl[i] = s[<span class="tok-number">63</span> - i];</span> <span class="line" id="L105"> gl[i] = s[<span class="tok-number">31</span> - i];</span> <span class="line" id="L106"> }</span> <span class="line" id="L107"> fl[<span class="tok-number">31</span>] &= <span class="tok-number">0x7f</span>;</span> <span class="line" id="L108"> gl[<span class="tok-number">31</span>] &= <span class="tok-number">0x7f</span>;</span> <span class="line" id="L109"> <span class="tok-kw">var</span> fe_f = fromBytes(fl);</span> <span class="line" id="L110"> <span class="tok-kw">const</span> fe_g = fromBytes(gl);</span> <span class="line" id="L111"> fe_f.limbs[<span class="tok-number">0</span>] += (s[<span class="tok-number">32</span>] >> <span class="tok-number">7</span>) * <span class="tok-number">19</span> + <span class="tok-builtin">@as</span>(<span class="tok-type">u10</span>, s[<span class="tok-number">0</span>] >> <span class="tok-number">7</span>) * <span class="tok-number">722</span>;</span> <span class="line" id="L112"> i = <span class="tok-number">0</span>;</span> <span class="line" id="L113"> <span class="tok-kw">while</span> (i < <span class="tok-number">5</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L114"> fe_f.limbs[i] += <span class="tok-number">38</span> * fe_g.limbs[i];</span> <span class="line" id="L115"> }</span> <span class="line" id="L116"> fe_f.reduce();</span> <span class="line" id="L117"> <span class="tok-kw">return</span> fe_f;</span> <span class="line" id="L118"> }</span> <span class="line" id="L119"></span> <span class="line" id="L120"> <span class="tok-comment">/// Reject non-canonical encodings of an element, possibly ignoring the top bit</span></span> <span class="line" id="L121"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">rejectNonCanonical</span>(s: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>, <span class="tok-kw">comptime</span> ignore_extra_bit: <span class="tok-type">bool</span>) NonCanonicalError!<span class="tok-type">void</span> {</span> <span class="line" id="L122"> <span class="tok-kw">var</span> c: <span class="tok-type">u16</span> = (s[<span class="tok-number">31</span>] & <span class="tok-number">0x7f</span>) ^ <span class="tok-number">0x7f</span>;</span> <span class="line" id="L123"> <span class="tok-kw">comptime</span> <span class="tok-kw">var</span> i = <span class="tok-number">30</span>;</span> <span class="line" id="L124"> <span class="tok-kw">inline</span> <span class="tok-kw">while</span> (i > <span class="tok-number">0</span>) : (i -= <span class="tok-number">1</span>) {</span> <span class="line" id="L125"> c \|= s[i] ^ <span class="tok-number">0xff</span>;</span> <span class="line" id="L126"> }</span> <span class="line" id="L127"> c = (c -% <span class="tok-number">1</span>) >> <span class="tok-number">8</span>;</span> <span class="line" id="L128"> <span class="tok-kw">const</span> d = (<span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, <span class="tok-number">0xed</span> - <span class="tok-number">1</span>) -% <span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, s[<span class="tok-number">0</span>])) >> <span class="tok-number">8</span>;</span> <span class="line" id="L129"> <span class="tok-kw">const</span> x = <span class="tok-kw">if</span> (ignore_extra_bit) <span class="tok-number">0</span> <span class="tok-kw">else</span> s[<span class="tok-number">31</span>] >> <span class="tok-number">7</span>;</span> <span class="line" id="L130"> <span class="tok-kw">if</span> ((((c & d) \| x) & <span class="tok-number">1</span>) != <span class="tok-number">0</span>) {</span> <span class="line" id="L131"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.NonCanonical;</span> <span class="line" id="L132"> }</span> <span class="line" id="L133"> }</span> <span class="line" id="L134"></span> <span class="line" id="L135"> <span class="tok-comment">/// Reduce a field element mod 2^255-19</span></span> <span class="line" id="L136"> <span class="tok-kw">fn</span> <span class="tok-fn">reduce</span>(fe: Fe) <span class="tok-type">void</span> {</span> <span class="line" id="L137"> <span class="tok-kw">comptime</span> <span class="tok-kw">var</span> i = <span class="tok-number">0</span>;</span> <span class="line" id="L138"> <span class="tok-kw">comptime</span> <span class="tok-kw">var</span> j = <span class="tok-number">0</span>;</span> <span class="line" id="L139"> <span class="tok-kw">const</span> limbs = &fe.limbs;</span> <span class="line" id="L140"> <span class="tok-kw">inline</span> <span class="tok-kw">while</span> (j < <span class="tok-number">2</span>) : (j += <span class="tok-number">1</span>) {</span> <span class="line" id="L141"> i = <span class="tok-number">0</span>;</span> <span class="line" id="L142"> <span class="tok-kw">inline</span> <span class="tok-kw">while</span> (i < <span class="tok-number">4</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L143"> limbs[i + <span class="tok-number">1</span>] += limbs[i] >> <span class="tok-number">51</span>;</span> <span class="line" id="L144"> limbs[i] &= MASK51;</span> <span class="line" id="L145"> }</span> <span class="line" id="L146"> limbs[<span class="tok-number">0</span>] += <span class="tok-number">19</span> (limbs[<span class="tok-number">4</span>] >> <span class="tok-number">51</span>);</span> <span class="line" id="L147"> limbs[<span class="tok-number">4</span>] &= MASK51;</span> <span class="line" id="L148"> }</span> <span class="line" id="L149"> limbs[<span class="tok-number">0</span>] += <span class="tok-number">19</span>;</span> <span class="line" id="L150"> i = <span class="tok-number">0</span>;</span> <span class="line" id="L151"> <span class="tok-kw">inline</span> <span class="tok-kw">while</span> (i < <span class="tok-number">4</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L152"> limbs[i + <span class="tok-number">1</span>] += limbs[i] >> <span class="tok-number">51</span>;</span> <span class="line" id="L153"> limbs[i] &= MASK51;</span> <span class="line" id="L154"> }</span> <span class="line" id="L155"> limbs[<span class="tok-number">0</span>] += <span class="tok-number">19</span> * (limbs[<span class="tok-number">4</span>] >> <span class="tok-number">51</span>);</span> <span class="line" id="L156"> limbs[<span class="tok-number">4</span>] &= MASK51;</span> <span class="line" id="L157"></span> <span class="line" id="L158"> limbs[<span class="tok-number">0</span>] += <span class="tok-number">0x8000000000000</span> - <span class="tok-number">19</span>;</span> <span class="line" id="L159"> limbs[<span class="tok-number">1</span>] += <span class="tok-number">0x8000000000000</span> - <span class="tok-number">1</span>;</span> <span class="line" id="L160"> limbs[<span class="tok-number">2</span>] += <span class="tok-number">0x8000000000000</span> - <span class="tok-number">1</span>;</span> <span class="line" id="L161"> limbs[<span class="tok-number">3</span>] += <span class="tok-number">0x8000000000000</span> - <span class="tok-number">1</span>;</span> <span class="line" id="L162"> limbs[<span class="tok-number">4</span>] += <span class="tok-number">0x8000000000000</span> - <span class="tok-number">1</span>;</span> <span class="line" id="L163"></span> <span class="line" id="L164"> i = <span class="tok-number">0</span>;</span> <span class="line" id="L165"> <span class="tok-kw">inline</span> <span class="tok-kw">while</span> (i < <span class="tok-number">4</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L166"> limbs[i + <span class="tok-number">1</span>] += limbs[i] >> <span class="tok-number">51</span>;</span> <span class="line" id="L167"> limbs[i] &= MASK51;</span> <span class="line" id="L168"> }</span> <span class="line" id="L169"> limbs[<span class="tok-number">4</span>] &= MASK51;</span> <span class="line" id="L170"> }</span> <span class="line" id="L171"></span> <span class="line" id="L172"> <span class="tok-comment">/// Add a field element</span></span> <span class="line" id="L173"> <span class="tok-kw">pub</span> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">add</span>(a: Fe, b: Fe) Fe {</span> <span class="line" id="L174"> <span class="tok-kw">var</span> fe: Fe = <span class="tok-null">undefined</span>;</span> <span class="line" id="L175"> <span class="tok-kw">comptime</span> <span class="tok-kw">var</span> i = <span class="tok-number">0</span>;</span> <span class="line" id="L176"> <span class="tok-kw">inline</span> <span class="tok-kw">while</span> (i < <span class="tok-number">5</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L177"> fe.limbs[i] = a.limbs[i] + b.limbs[i];</span> <span class="line" id="L178"> }</span> <span class="line" id="L179"> <span class="tok-kw">return</span> fe;</span> <span class="line" id="L180"> }</span> <span class="line" id="L181"></span> <span class="line" id="L182"> <span class="tok-comment">/// Subtract a field element</span></span> <span class="line" id="L183"> <span class="tok-kw">pub</span> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">sub</span>(a: Fe, b: Fe) Fe {</span> <span class="line" id="L184"> <span class="tok-kw">var</span> fe = b;</span> <span class="line" id="L185"> <span class="tok-kw">comptime</span> <span class="tok-kw">var</span> i = <span class="tok-number">0</span>;</span> <span class="line" id="L186"> <span class="tok-kw">inline</span> <span class="tok-kw">while</span> (i < <span class="tok-number">4</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L187"> fe.limbs[i + <span class="tok-number">1</span>] += fe.limbs[i] >> <span class="tok-number">51</span>;</span> <span class="line" id="L188"> fe.limbs[i] &= MASK51;</span> <span class="line" id="L189"> }</span> <span class="line" id="L190"> fe.limbs[<span class="tok-number">0</span>] += <span class="tok-number">19</span> * (fe.limbs[<span class="tok-number">4</span>] >> <span class="tok-number">51</span>);</span> <span class="line" id="L191"> fe.limbs[<span class="tok-number">4</span>] &= MASK51;</span> <span class="line" id="L192"> fe.limbs[<span class="tok-number">0</span>] = (a.limbs[<span class="tok-number">0</span>] + <span class="tok-number">0xfffffffffffda</span>) - fe.limbs[<span class="tok-number">0</span>];</span> <span class="line" id="L193"> fe.limbs[<span class="tok-number">1</span>] = (a.limbs[<span class="tok-number">1</span>] + <span class="tok-number">0xffffffffffffe</span>) - fe.limbs[<span class="tok-number">1</span>];</span> <span class="line" id="L194"> fe.limbs[<span class="tok-number">2</span>] = (a.limbs[<span class="tok-number">2</span>] + <span class="tok-number">0xffffffffffffe</span>) - fe.limbs[<span class="tok-number">2</span>];</span> <span class="line" id="L195"> fe.limbs[<span class="tok-number">3</span>] = (a.limbs[<span class="tok-number">3</span>] + <span class="tok-number">0xffffffffffffe</span>) - fe.limbs[<span class="tok-number">3</span>];</span> <span class="line" id="L196"> fe.limbs[<span class="tok-number">4</span>] = (a.limbs[<span class="tok-number">4</span>] + <span class="tok-number">0xffffffffffffe</span>) - fe.limbs[<span class="tok-number">4</span>];</span> <span class="line" id="L197"></span> <span class="line" id="L198"> <span class="tok-kw">return</span> fe;</span> <span class="line" id="L199"> }</span> <span class="line" id="L200"></span> <span class="line" id="L201"> <span class="tok-comment">/// Negate a field element</span></span> <span class="line" id="L202"> <span class="tok-kw">pub</span> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">neg</span>(a: Fe) Fe {</span> <span class="line" id="L203"> <span class="tok-kw">return</span> zero.sub(a);</span> <span class="line" id="L204"> }</span> <span class="line" id="L205"></span> <span class="line" id="L206"> <span class="tok-comment">/// Return true if a field element is negative</span></span> <span class="line" id="L207"> <span class="tok-kw">pub</span> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">isNegative</span>(a: Fe) <span class="tok-type">bool</span> {</span> <span class="line" id="L208"> <span class="tok-kw">return</span> (a.toBytes()[<span class="tok-number">0</span>] & <span class="tok-number">1</span>) != <span class="tok-number">0</span>;</span> <span class="line" id="L209"> }</span> <span class="line" id="L210"></span> <span class="line" id="L211"> <span class="tok-comment">/// Conditonally replace a field element with `a` if `c` is positive</span></span> <span class="line" id="L212"> <span class="tok-kw">pub</span> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">cMov</span>(fe: Fe, a: Fe, c: <span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L213"> <span class="tok-kw">const</span> mask: <span class="tok-type">u64</span> = <span class="tok-number">0</span> -% c;</span> <span class="line" id="L214"> <span class="tok-kw">var</span> x = fe.;</span> <span class="line" id="L215"> <span class="tok-kw">comptime</span> <span class="tok-kw">var</span> i = <span class="tok-number">0</span>;</span> <span class="line" id="L216"> <span class="tok-kw">inline</span> <span class="tok-kw">while</span> (i < <span class="tok-number">5</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L217"> x.limbs[i] ^= a.limbs[i];</span> <span class="line" id="L218"> }</span> <span class="line" id="L219"> i = <span class="tok-number">0</span>;</span> <span class="line" id="L220"> <span class="tok-kw">inline</span> <span class="tok-kw">while</span> (i < <span class="tok-number">5</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L221"> x.limbs[i] &= mask;</span> <span class="line" id="L222"> }</span> <span class="line" id="L223"> i = <span class="tok-number">0</span>;</span> <span class="line" id="L224"> <span class="tok-kw">inline</span> <span class="tok-kw">while</span> (i < <span class="tok-number">5</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L225"> fe.limbs[i] ^= x.limbs[i];</span> <span class="line" id="L226"> }</span> <span class="line" id="L227"> }</span> <span class="line" id="L228"></span> <span class="line" id="L229"> <span class="tok-comment">/// Conditionally swap two pairs of field elements if `c` is positive</span></span> <span class="line" id="L230"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">cSwap2</span>(a0: Fe, b0: Fe, a1: Fe, b1: Fe, c: <span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L231"> <span class="tok-kw">const</span> mask: <span class="tok-type">u64</span> = <span class="tok-number">0</span> -% c;</span> <span class="line" id="L232"> <span class="tok-kw">var</span> x0 = a0.;</span> <span class="line" id="L233"> <span class="tok-kw">var</span> x1 = a1.;</span> <span class="line" id="L234"> <span class="tok-kw">comptime</span> <span class="tok-kw">var</span> i = <span class="tok-number">0</span>;</span> <span class="line" id="L235"> <span class="tok-kw">inline</span> <span class="tok-kw">while</span> (i < <span class="tok-number">5</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L236"> x0.limbs[i] ^= b0.limbs[i];</span> <span class="line" id="L237"> x1.limbs[i] ^= b1.limbs[i];</span> <span class="line" id="L238"> }</span> <span class="line" id="L239"> i = <span class="tok-number">0</span>;</span> <span class="line" id="L240"> <span class="tok-kw">inline</span> <span class="tok-kw">while</span> (i < <span class="tok-number">5</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L241"> x0.limbs[i] &= mask;</span> <span class="line" id="L242"> x1.limbs[i] &= mask;</span> <span class="line" id="L243"> }</span> <span class="line" id="L244"> i = <span class="tok-number">0</span>;</span> <span class="line" id="L245"> <span class="tok-kw">inline</span> <span class="tok-kw">while</span> (i < <span class="tok-number">5</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L246"> a0.limbs[i] ^= x0.limbs[i];</span> <span class="line" id="L247"> b0.limbs[i] ^= x0.limbs[i];</span> <span class="line" id="L248"> a1.limbs[i] ^= x1.limbs[i];</span> <span class="line" id="L249"> b1.limbs[i] ^= x1.limbs[i];</span> <span class="line" id="L250"> }</span> <span class="line" id="L251"> }</span> <span class="line" id="L252"></span> <span class="line" id="L253"> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">_carry128</span>(r: [<span class="tok-number">5</span>]<span class="tok-type">u128</span>) Fe {</span> <span class="line" id="L254"> <span class="tok-kw">var</span> rs: [<span class="tok-number">5</span>]<span class="tok-type">u64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L255"> <span class="tok-kw">comptime</span> <span class="tok-kw">var</span> i = <span class="tok-number">0</span>;</span> <span class="line" id="L256"> <span class="tok-kw">inline</span> <span class="tok-kw">while</span> (i < <span class="tok-number">4</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L257"> rs[i] = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(r[i])) & MASK51;</span> <span class="line" id="L258"> r[i + <span class="tok-number">1</span>] += <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@intCast</span>(r[i] >> <span class="tok-number">51</span>));</span> <span class="line" id="L259"> }</span> <span class="line" id="L260"> rs[<span class="tok-number">4</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(r[<span class="tok-number">4</span>])) & MASK51;</span> <span class="line" id="L261"> <span class="tok-kw">var</span> carry = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@intCast</span>(r[<span class="tok-number">4</span>] >> <span class="tok-number">51</span>));</span> <span class="line" id="L262"> rs[<span class="tok-number">0</span>] += <span class="tok-number">19</span> carry;</span> <span class="line" id="L263"> carry = rs[<span class="tok-number">0</span>] >> <span class="tok-number">51</span>;</span> <span class="line" id="L264"> rs[<span class="tok-number">0</span>] &= MASK51;</span> <span class="line" id="L265"> rs[<span class="tok-number">1</span>] += carry;</span> <span class="line" id="L266"> carry = rs[<span class="tok-number">1</span>] >> <span class="tok-number">51</span>;</span> <span class="line" id="L267"> rs[<span class="tok-number">1</span>] &= MASK51;</span> <span class="line" id="L268"> rs[<span class="tok-number">2</span>] += carry;</span> <span class="line" id="L269"></span> <span class="line" id="L270"> <span class="tok-kw">return</span> .{ .limbs = rs };</span> <span class="line" id="L271"> }</span> <span class="line" id="L272"></span> <span class="line" id="L273"> <span class="tok-comment">/// Multiply two field elements</span></span> <span class="line" id="L274"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">mul</span>(a: Fe, b: Fe) <span class="tok-kw">callconv</span>(bloaty_inline) Fe {</span> <span class="line" id="L275"> <span class="tok-kw">var</span> ax: [<span class="tok-number">5</span>]<span class="tok-type">u128</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L276"> <span class="tok-kw">var</span> bx: [<span class="tok-number">5</span>]<span class="tok-type">u128</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L277"> <span class="tok-kw">var</span> a19: [<span class="tok-number">5</span>]<span class="tok-type">u128</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L278"> <span class="tok-kw">var</span> r: [<span class="tok-number">5</span>]<span class="tok-type">u128</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L279"> <span class="tok-kw">comptime</span> <span class="tok-kw">var</span> i = <span class="tok-number">0</span>;</span> <span class="line" id="L280"> <span class="tok-kw">inline</span> <span class="tok-kw">while</span> (i < <span class="tok-number">5</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L281"> ax[i] = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, <span class="tok-builtin">@intCast</span>(a.limbs[i]));</span> <span class="line" id="L282"> bx[i] = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, <span class="tok-builtin">@intCast</span>(b.limbs[i]));</span> <span class="line" id="L283"> }</span> <span class="line" id="L284"> i = <span class="tok-number">1</span>;</span> <span class="line" id="L285"> <span class="tok-kw">inline</span> <span class="tok-kw">while</span> (i < <span class="tok-number">5</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L286"> a19[i] = <span class="tok-number">19</span> * ax[i];</span> <span class="line" id="L287"> }</span> <span class="line" id="L288"> r[<span class="tok-number">0</span>] = ax[<span class="tok-number">0</span>] * bx[<span class="tok-number">0</span>] + a19[<span class="tok-number">1</span>] * bx[<span class="tok-number">4</span>] + a19[<span class="tok-number">2</span>] * bx[<span class="tok-number">3</span>] + a19[<span class="tok-number">3</span>] * bx[<span class="tok-number">2</span>] + a19[<span class="tok-number">4</span>] * bx[<span class="tok-number">1</span>];</span> <span class="line" id="L289"> r[<span class="tok-number">1</span>] = ax[<span class="tok-number">0</span>] * bx[<span class="tok-number">1</span>] + ax[<span class="tok-number">1</span>] * bx[<span class="tok-number">0</span>] + a19[<span class="tok-number">2</span>] * bx[<span class="tok-number">4</span>] + a19[<span class="tok-number">3</span>] * bx[<span class="tok-number">3</span>] + a19[<span class="tok-number">4</span>] * bx[<span class="tok-number">2</span>];</span> <span class="line" id="L290"> r[<span class="tok-number">2</span>] = ax[<span class="tok-number">0</span>] * bx[<span class="tok-number">2</span>] + ax[<span class="tok-number">1</span>] * bx[<span class="tok-number">1</span>] + ax[<span class="tok-number">2</span>] * bx[<span class="tok-number">0</span>] + a19[<span class="tok-number">3</span>] * bx[<span class="tok-number">4</span>] + a19[<span class="tok-number">4</span>] * bx[<span class="tok-number">3</span>];</span> <span class="line" id="L291"> r[<span class="tok-number">3</span>] = ax[<span class="tok-number">0</span>] * bx[<span class="tok-number">3</span>] + ax[<span class="tok-number">1</span>] * bx[<span class="tok-number">2</span>] + ax[<span class="tok-number">2</span>] * bx[<span class="tok-number">1</span>] + ax[<span class="tok-number">3</span>] * bx[<span class="tok-number">0</span>] + a19[<span class="tok-number">4</span>] * bx[<span class="tok-number">4</span>];</span> <span class="line" id="L292"> r[<span class="tok-number">4</span>] = ax[<span class="tok-number">0</span>] * bx[<span class="tok-number">4</span>] + ax[<span class="tok-number">1</span>] * bx[<span class="tok-number">3</span>] + ax[<span class="tok-number">2</span>] * bx[<span class="tok-number">2</span>] + ax[<span class="tok-number">3</span>] * bx[<span class="tok-number">1</span>] + ax[<span class="tok-number">4</span>] * bx[<span class="tok-number">0</span>];</span> <span class="line" id="L293"></span> <span class="line" id="L294"> <span class="tok-kw">return</span> _carry128(&r);</span> <span class="line" id="L295"> }</span> <span class="line" id="L296"></span> <span class="line" id="L297"> <span class="tok-kw">fn</span> <span class="tok-fn">_sq</span>(a: Fe, <span class="tok-kw">comptime</span> double: <span class="tok-type">bool</span>) Fe {</span> <span class="line" id="L298"> <span class="tok-kw">var</span> ax: [<span class="tok-number">5</span>]<span class="tok-type">u128</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L299"> <span class="tok-kw">var</span> r: [<span class="tok-number">5</span>]<span class="tok-type">u128</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L300"> <span class="tok-kw">comptime</span> <span class="tok-kw">var</span> i = <span class="tok-number">0</span>;</span> <span class="line" id="L301"> <span class="tok-kw">inline</span> <span class="tok-kw">while</span> (i < <span class="tok-number">5</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L302"> ax[i] = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, <span class="tok-builtin">@intCast</span>(a.limbs[i]));</span> <span class="line" id="L303"> }</span> <span class="line" id="L304"> <span class="tok-kw">const</span> a0_2 = <span class="tok-number">2</span> * ax[<span class="tok-number">0</span>];</span> <span class="line" id="L305"> <span class="tok-kw">const</span> a1_2 = <span class="tok-number">2</span> * ax[<span class="tok-number">1</span>];</span> <span class="line" id="L306"> <span class="tok-kw">const</span> a1_38 = <span class="tok-number">38</span> * ax[<span class="tok-number">1</span>];</span> <span class="line" id="L307"> <span class="tok-kw">const</span> a2_38 = <span class="tok-number">38</span> * ax[<span class="tok-number">2</span>];</span> <span class="line" id="L308"> <span class="tok-kw">const</span> a3_38 = <span class="tok-number">38</span> * ax[<span class="tok-number">3</span>];</span> <span class="line" id="L309"> <span class="tok-kw">const</span> a3_19 = <span class="tok-number">19</span> * ax[<span class="tok-number">3</span>];</span> <span class="line" id="L310"> <span class="tok-kw">const</span> a4_19 = <span class="tok-number">19</span> * ax[<span class="tok-number">4</span>];</span> <span class="line" id="L311"> r[<span class="tok-number">0</span>] = ax[<span class="tok-number">0</span>] * ax[<span class="tok-number">0</span>] + a1_38 * ax[<span class="tok-number">4</span>] + a2_38 * ax[<span class="tok-number">3</span>];</span> <span class="line" id="L312"> r[<span class="tok-number">1</span>] = a0_2 * ax[<span class="tok-number">1</span>] + a2_38 * ax[<span class="tok-number">4</span>] + a3_19 * ax[<span class="tok-number">3</span>];</span> <span class="line" id="L313"> r[<span class="tok-number">2</span>] = a0_2 * ax[<span class="tok-number">2</span>] + ax[<span class="tok-number">1</span>] * ax[<span class="tok-number">1</span>] + a3_38 * ax[<span class="tok-number">4</span>];</span> <span class="line" id="L314"> r[<span class="tok-number">3</span>] = a0_2 * ax[<span class="tok-number">3</span>] + a1_2 * ax[<span class="tok-number">2</span>] + a4_19 * ax[<span class="tok-number">4</span>];</span> <span class="line" id="L315"> r[<span class="tok-number">4</span>] = a0_2 * ax[<span class="tok-number">4</span>] + a1_2 * ax[<span class="tok-number">3</span>] + ax[<span class="tok-number">2</span>] * ax[<span class="tok-number">2</span>];</span> <span class="line" id="L316"> <span class="tok-kw">if</span> (double) {</span> <span class="line" id="L317"> i = <span class="tok-number">0</span>;</span> <span class="line" id="L318"> <span class="tok-kw">inline</span> <span class="tok-kw">while</span> (i < <span class="tok-number">5</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L319"> r[i] = <span class="tok-number">2</span>;</span> <span class="line" id="L320"> }</span> <span class="line" id="L321"> }</span> <span class="line" id="L322"> <span class="tok-kw">return</span> _carry128(&r);</span> <span class="line" id="L323"> }</span> <span class="line" id="L324"></span> <span class="line" id="L325"> <span class="tok-comment">/// Square a field element</span></span> <span class="line" id="L326"> <span class="tok-kw">pub</span> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">sq</span>(a: Fe) Fe {</span> <span class="line" id="L327"> <span class="tok-kw">return</span> _sq(a, <span class="tok-null">false</span>);</span> <span class="line" id="L328"> }</span> <span class="line" id="L329"></span> <span class="line" id="L330"> <span class="tok-comment">/// Square and double a field element</span></span> <span class="line" id="L331"> <span class="tok-kw">pub</span> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">sq2</span>(a: Fe) Fe {</span> <span class="line" id="L332"> <span class="tok-kw">return</span> _sq(a, <span class="tok-null">true</span>);</span> <span class="line" id="L333"> }</span> <span class="line" id="L334"></span> <span class="line" id="L335"> <span class="tok-comment">/// Multiply a field element with a small (32-bit) integer</span></span> <span class="line" id="L336"> <span class="tok-kw">pub</span> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">mul32</span>(a: Fe, <span class="tok-kw">comptime</span> n: <span class="tok-type">u32</span>) Fe {</span> <span class="line" id="L337"> <span class="tok-kw">const</span> sn = <span class="tok-builtin">@as</span>(<span class="tok-type">u128</span>, <span class="tok-builtin">@intCast</span>(n));</span> <span class="line" id="L338"> <span class="tok-kw">var</span> fe: Fe = <span class="tok-null">undefined</span>;</span> <span class="line" id="L339"> <span class="tok-kw">var</span> x: <span class="tok-type">u128</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L340"> <span class="tok-kw">comptime</span> <span class="tok-kw">var</span> i = <span class="tok-number">0</span>;</span> <span class="line" id="L341"> <span class="tok-kw">inline</span> <span class="tok-kw">while</span> (i < <span class="tok-number">5</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L342"> x = a.limbs[i] sn + (x >> <span class="tok-number">51</span>);</span> <span class="line" id="L343"> fe.limbs[i] = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@truncate</span>(x)) & MASK51;</span> <span class="line" id="L344"> }</span> <span class="line" id="L345"> fe.limbs[<span class="tok-number">0</span>] += <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@intCast</span>(x >> <span class="tok-number">51</span>)) * <span class="tok-number">19</span>;</span> <span class="line" id="L346"></span> <span class="line" id="L347"> <span class="tok-kw">return</span> fe;</span> <span class="line" id="L348"> }</span> <span class="line" id="L349"></span> <span class="line" id="L350"> <span class="tok-comment">/// Square a field element `n` times</span></span> <span class="line" id="L351"> <span class="tok-kw">fn</span> <span class="tok-fn">sqn</span>(a: Fe, n: <span class="tok-type">usize</span>) Fe {</span> <span class="line" id="L352"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L353"> <span class="tok-kw">var</span> fe = a;</span> <span class="line" id="L354"> <span class="tok-kw">while</span> (i < n) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L355"> fe = fe.sq();</span> <span class="line" id="L356"> }</span> <span class="line" id="L357"> <span class="tok-kw">return</span> fe;</span> <span class="line" id="L358"> }</span> <span class="line" id="L359"></span> <span class="line" id="L360"> <span class="tok-comment">/// Return the inverse of a field element, or 0 if a=0.</span></span> <span class="line" id="L361"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">invert</span>(a: Fe) Fe {</span> <span class="line" id="L362"> <span class="tok-kw">var</span> t0 = a.sq();</span> <span class="line" id="L363"> <span class="tok-kw">var</span> t1 = t0.sqn(<span class="tok-number">2</span>).mul(a);</span> <span class="line" id="L364"> t0 = t0.mul(t1);</span> <span class="line" id="L365"> t1 = t1.mul(t0.sq());</span> <span class="line" id="L366"> t1 = t1.mul(t1.sqn(<span class="tok-number">5</span>));</span> <span class="line" id="L367"> <span class="tok-kw">var</span> t2 = t1.sqn(<span class="tok-number">10</span>).mul(t1);</span> <span class="line" id="L368"> t2 = t2.mul(t2.sqn(<span class="tok-number">20</span>)).sqn(<span class="tok-number">10</span>);</span> <span class="line" id="L369"> t1 = t1.mul(t2);</span> <span class="line" id="L370"> t2 = t1.sqn(<span class="tok-number">50</span>).mul(t1);</span> <span class="line" id="L371"> <span class="tok-kw">return</span> t1.mul(t2.mul(t2.sqn(<span class="tok-number">100</span>)).sqn(<span class="tok-number">50</span>)).sqn(<span class="tok-number">5</span>).mul(t0);</span> <span class="line" id="L372"> }</span> <span class="line" id="L373"></span> <span class="line" id="L374"> <span class="tok-comment">/// Return a^((p-5)/8) = a^(2^252-3)</span></span> <span class="line" id="L375"> <span class="tok-comment">/// Used to compute square roots since we have p=5 (mod 8); see Cohen and Frey.</span></span> <span class="line" id="L376"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">pow2523</span>(a: Fe) Fe {</span> <span class="line" id="L377"> <span class="tok-kw">var</span> t0 = a.mul(a.sq());</span> <span class="line" id="L378"> <span class="tok-kw">var</span> t1 = t0.mul(t0.sqn(<span class="tok-number">2</span>)).sq().mul(a);</span> <span class="line" id="L379"> t0 = t1.sqn(<span class="tok-number">5</span>).mul(t1);</span> <span class="line" id="L380"> <span class="tok-kw">var</span> t2 = t0.sqn(<span class="tok-number">5</span>).mul(t1);</span> <span class="line" id="L381"> t1 = t2.sqn(<span class="tok-number">15</span>).mul(t2);</span> <span class="line" id="L382"> t2 = t1.sqn(<span class="tok-number">30</span>).mul(t1);</span> <span class="line" id="L383"> t1 = t2.sqn(<span class="tok-number">60</span>).mul(t2);</span> <span class="line" id="L384"> <span class="tok-kw">return</span> t1.sqn(<span class="tok-number">120</span>).mul(t1).sqn(<span class="tok-number">10</span>).mul(t0).sqn(<span class="tok-number">2</span>).mul(a);</span> <span class="line" id="L385"> }</span> <span class="line" id="L386"></span> <span class="line" id="L387"> <span class="tok-comment">/// Return the absolute value of a field element</span></span> <span class="line" id="L388"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">abs</span>(a: Fe) Fe {</span> <span class="line" id="L389"> <span class="tok-kw">var</span> r = a;</span> <span class="line" id="L390"> r.cMov(a.neg(), <span class="tok-builtin">@intFromBool</span>(a.isNegative()));</span> <span class="line" id="L391"> <span class="tok-kw">return</span> r;</span> <span class="line" id="L392"> }</span> <span class="line" id="L393"></span> <span class="line" id="L394"> <span class="tok-comment">/// Return true if the field element is a square</span></span> <span class="line" id="L395"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">isSquare</span>(a: Fe) <span class="tok-type">bool</span> {</span> <span class="line" id="L396"> <span class="tok-comment">// Compute the Jacobi symbol x^((p-1)/2)</span> </span> <span class="line" id="L397"> <span class="tok-kw">const</span> _11 = a.mul(a.sq());</span> <span class="line" id="L398"> <span class="tok-kw">const</span> _1111 = _11.mul(_11.sq().sq());</span> <span class="line" id="L399"> <span class="tok-kw">const</span> _11111111 = _1111.mul(_1111.sq().sq().sq().sq());</span> <span class="line" id="L400"> <span class="tok-kw">const</span> u = _11111111.sqn(<span class="tok-number">2</span>).mul(_11);</span> <span class="line" id="L401"> <span class="tok-kw">const</span> t = u.sqn(<span class="tok-number">10</span>).mul(u).sqn(<span class="tok-number">10</span>).mul(u);</span> <span class="line" id="L402"> <span class="tok-kw">const</span> t2 = t.sqn(<span class="tok-number">30</span>).mul(t);</span> <span class="line" id="L403"> <span class="tok-kw">const</span> t3 = t2.sqn(<span class="tok-number">60</span>).mul(t2);</span> <span class="line" id="L404"> <span class="tok-kw">const</span> t4 = t3.sqn(<span class="tok-number">120</span>).mul(t3).sqn(<span class="tok-number">10</span>).mul(u).sqn(<span class="tok-number">3</span>).mul(_11).sq();</span> <span class="line" id="L405"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">bool</span>, <span class="tok-builtin">@bitCast</span>(<span class="tok-builtin">@as</span>(<span class="tok-type">u1</span>, <span class="tok-builtin">@truncate</span>(~(t4.toBytes()[<span class="tok-number">1</span>] & <span class="tok-number">1</span>)))));</span> <span class="line" id="L406"> }</span> <span class="line" id="L407"></span> <span class="line" id="L408"> <span class="tok-kw">fn</span> <span class="tok-fn">uncheckedSqrt</span>(x2: Fe) Fe {</span> <span class="line" id="L409"> <span class="tok-kw">var</span> e = x2.pow2523();</span> <span class="line" id="L410"> <span class="tok-kw">const</span> p_root = e.mul(x2); <span class="tok-comment">// positive root</span> </span> <span class="line" id="L411"> <span class="tok-kw">const</span> m_root = p_root.mul(Fe.sqrtm1); <span class="tok-comment">// negative root</span> </span> <span class="line" id="L412"> <span class="tok-kw">const</span> m_root2 = m_root.sq();</span> <span class="line" id="L413"> e = x2.sub(m_root2);</span> <span class="line" id="L414"> <span class="tok-kw">var</span> x = p_root;</span> <span class="line" id="L415"> x.cMov(m_root, <span class="tok-builtin">@intFromBool</span>(e.isZero()));</span> <span class="line" id="L416"> <span class="tok-kw">return</span> x;</span> <span class="line" id="L417"> }</span> <span class="line" id="L418"></span> <span class="line" id="L419"> <span class="tok-comment">/// Compute the square root of `x2`, returning `error.NotSquare` if `x2` was not a square</span></span> <span class="line" id="L420"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">sqrt</span>(x2: Fe) NotSquareError!Fe {</span> <span class="line" id="L421"> <span class="tok-kw">var</span> x2_copy = x2;</span> <span class="line" id="L422"> <span class="tok-kw">const</span> x = x2.uncheckedSqrt();</span> <span class="line" id="L423"> <span class="tok-kw">const</span> check = x.sq().sub(x2_copy);</span> <span class="line" id="L424"> <span class="tok-kw">if</span> (check.isZero()) {</span> <span class="line" id="L425"> <span class="tok-kw">return</span> x;</span> <span class="line" id="L426"> }</span> <span class="line" id="L427"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.NotSquare;</span> <span class="line" id="L428"> }</span> <span class="line" id="L429">};</span> <span class="line" id="L430"></span> </code></pre></body> </html>
repos/yazap/docs/src/std/crypto	repos/yazap/docs/src/std/crypto/25519/curve25519.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/25519/curve25519.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> crypto = std.crypto;</span> <span class="line" id="L3"></span> <span class="line" id="L4"><span class="tok-kw">const</span> IdentityElementError = crypto.errors.IdentityElementError;</span> <span class="line" id="L5"><span class="tok-kw">const</span> NonCanonicalError = crypto.errors.NonCanonicalError;</span> <span class="line" id="L6"><span class="tok-kw">const</span> WeakPublicKeyError = crypto.errors.WeakPublicKeyError;</span> <span class="line" id="L7"></span> <span class="line" id="L8"><span class="tok-comment">/// Group operations over Curve25519.</span></span> <span class="line" id="L9"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Curve25519 = <span class="tok-kw">struct</span> {</span> <span class="line" id="L10"> <span class="tok-comment">/// The underlying prime field.</span></span> <span class="line" id="L11"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Fe = <span class="tok-builtin">@import</span>(<span class="tok-str">"field.zig"</span>).Fe;</span> <span class="line" id="L12"> <span class="tok-comment">/// Field arithmetic mod the order of the main subgroup.</span></span> <span class="line" id="L13"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> scalar = <span class="tok-builtin">@import</span>(<span class="tok-str">"scalar.zig"</span>);</span> <span class="line" id="L14"></span> <span class="line" id="L15"> x: Fe,</span> <span class="line" id="L16"></span> <span class="line" id="L17"> <span class="tok-comment">/// Decode a Curve25519 point from its compressed (X) coordinates.</span></span> <span class="line" id="L18"> <span class="tok-kw">pub</span> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromBytes</span>(s: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>) Curve25519 {</span> <span class="line" id="L19"> <span class="tok-kw">return</span> .{ .x = Fe.fromBytes(s) };</span> <span class="line" id="L20"> }</span> <span class="line" id="L21"></span> <span class="line" id="L22"> <span class="tok-comment">/// Encode a Curve25519 point.</span></span> <span class="line" id="L23"> <span class="tok-kw">pub</span> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">toBytes</span>(p: Curve25519) [<span class="tok-number">32</span>]<span class="tok-type">u8</span> {</span> <span class="line" id="L24"> <span class="tok-kw">return</span> p.x.toBytes();</span> <span class="line" id="L25"> }</span> <span class="line" id="L26"></span> <span class="line" id="L27"> <span class="tok-comment">/// The Curve25519 base point.</span></span> <span class="line" id="L28"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> basePoint = Curve25519{ .x = Fe.curve25519BasePoint };</span> <span class="line" id="L29"></span> <span class="line" id="L30"> <span class="tok-comment">/// Check that the encoding of a Curve25519 point is canonical.</span></span> <span class="line" id="L31"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">rejectNonCanonical</span>(s: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>) NonCanonicalError!<span class="tok-type">void</span> {</span> <span class="line" id="L32"> <span class="tok-kw">return</span> Fe.rejectNonCanonical(s, <span class="tok-null">false</span>);</span> <span class="line" id="L33"> }</span> <span class="line" id="L34"></span> <span class="line" id="L35"> <span class="tok-comment">/// Reject the neutral element.</span></span> <span class="line" id="L36"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">rejectIdentity</span>(p: Curve25519) IdentityElementError!<span class="tok-type">void</span> {</span> <span class="line" id="L37"> <span class="tok-kw">if</span> (p.x.isZero()) {</span> <span class="line" id="L38"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.IdentityElement;</span> <span class="line" id="L39"> }</span> <span class="line" id="L40"> }</span> <span class="line" id="L41"></span> <span class="line" id="L42"> <span class="tok-comment">/// Multiply a point by the cofactor, returning WeakPublicKey if the element is in a small-order group.</span></span> <span class="line" id="L43"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">clearCofactor</span>(p: Curve25519) WeakPublicKeyError!Curve25519 {</span> <span class="line" id="L44"> <span class="tok-kw">const</span> cofactor = [_]<span class="tok-type">u8</span>{<span class="tok-number">8</span>} ++ [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} <span class="tok-number">31</span>;</span> <span class="line" id="L45"> <span class="tok-kw">return</span> ladder(p, cofactor, <span class="tok-number">4</span>) <span class="tok-kw">catch</span> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.WeakPublicKey;</span> <span class="line" id="L46"> }</span> <span class="line" id="L47"></span> <span class="line" id="L48"> <span class="tok-kw">fn</span> <span class="tok-fn">ladder</span>(p: Curve25519, s: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>, <span class="tok-kw">comptime</span> bits: <span class="tok-type">usize</span>) IdentityElementError!Curve25519 {</span> <span class="line" id="L49"> <span class="tok-kw">var</span> x1 = p.x;</span> <span class="line" id="L50"> <span class="tok-kw">var</span> x2 = Fe.one;</span> <span class="line" id="L51"> <span class="tok-kw">var</span> z2 = Fe.zero;</span> <span class="line" id="L52"> <span class="tok-kw">var</span> x3 = x1;</span> <span class="line" id="L53"> <span class="tok-kw">var</span> z3 = Fe.one;</span> <span class="line" id="L54"> <span class="tok-kw">var</span> swap: <span class="tok-type">u8</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L55"> <span class="tok-kw">var</span> pos: <span class="tok-type">usize</span> = bits - <span class="tok-number">1</span>;</span> <span class="line" id="L56"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) : (pos -= <span class="tok-number">1</span>) {</span> <span class="line" id="L57"> <span class="tok-kw">const</span> bit = (s[pos >> <span class="tok-number">3</span>] >> <span class="tok-builtin">@as</span>(<span class="tok-type">u3</span>, <span class="tok-builtin">@truncate</span>(pos))) & <span class="tok-number">1</span>;</span> <span class="line" id="L58"> swap ^= bit;</span> <span class="line" id="L59"> Fe.cSwap2(&x2, &x3, &z2, &z3, swap);</span> <span class="line" id="L60"> swap = bit;</span> <span class="line" id="L61"> <span class="tok-kw">const</span> a = x2.add(z2);</span> <span class="line" id="L62"> <span class="tok-kw">const</span> b = x2.sub(z2);</span> <span class="line" id="L63"> <span class="tok-kw">const</span> aa = a.sq();</span> <span class="line" id="L64"> <span class="tok-kw">const</span> bb = b.sq();</span> <span class="line" id="L65"> x2 = aa.mul(bb);</span> <span class="line" id="L66"> <span class="tok-kw">const</span> e = aa.sub(bb);</span> <span class="line" id="L67"> <span class="tok-kw">const</span> da = x3.sub(z3).mul(a);</span> <span class="line" id="L68"> <span class="tok-kw">const</span> cb = x3.add(z3).mul(b);</span> <span class="line" id="L69"> x3 = da.add(cb).sq();</span> <span class="line" id="L70"> z3 = x1.mul(da.sub(cb).sq());</span> <span class="line" id="L71"> z2 = e.mul(bb.add(e.mul32(<span class="tok-number">121666</span>)));</span> <span class="line" id="L72"> <span class="tok-kw">if</span> (pos == <span class="tok-number">0</span>) <span class="tok-kw">break</span>;</span> <span class="line" id="L73"> }</span> <span class="line" id="L74"> Fe.cSwap2(&x2, &x3, &z2, &z3, swap);</span> <span class="line" id="L75"> z2 = z2.invert();</span> <span class="line" id="L76"> x2 = x2.mul(z2);</span> <span class="line" id="L77"> <span class="tok-kw">if</span> (x2.isZero()) {</span> <span class="line" id="L78"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.IdentityElement;</span> <span class="line" id="L79"> }</span> <span class="line" id="L80"> <span class="tok-kw">return</span> Curve25519{ .x = x2 };</span> <span class="line" id="L81"> }</span> <span class="line" id="L82"></span> <span class="line" id="L83"> <span class="tok-comment">/// Multiply a Curve25519 point by a scalar after "clamping" it.</span></span> <span class="line" id="L84"> <span class="tok-comment">/// Clamping forces the scalar to be a multiple of the cofactor in</span></span> <span class="line" id="L85"> <span class="tok-comment">/// order to prevent small subgroups attacks. This is the standard</span></span> <span class="line" id="L86"> <span class="tok-comment">/// way to use Curve25519 for a DH operation.</span></span> <span class="line" id="L87"> <span class="tok-comment">/// Return error.IdentityElement if the resulting point is</span></span> <span class="line" id="L88"> <span class="tok-comment">/// the identity element.</span></span> <span class="line" id="L89"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">clampedMul</span>(p: Curve25519, s: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>) IdentityElementError!Curve25519 {</span> <span class="line" id="L90"> <span class="tok-kw">var</span> t: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = s;</span> <span class="line" id="L91"> scalar.clamp(&t);</span> <span class="line" id="L92"> <span class="tok-kw">return</span> <span class="tok-kw">try</span> ladder(p, t, <span class="tok-number">255</span>);</span> <span class="line" id="L93"> }</span> <span class="line" id="L94"></span> <span class="line" id="L95"> <span class="tok-comment">/// Multiply a Curve25519 point by a scalar without clamping it.</span></span> <span class="line" id="L96"> <span class="tok-comment">/// Return error.IdentityElement if the resulting point is</span></span> <span class="line" id="L97"> <span class="tok-comment">/// the identity element or error.WeakPublicKey if the public</span></span> <span class="line" id="L98"> <span class="tok-comment">/// key is a low-order point.</span></span> <span class="line" id="L99"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">mul</span>(p: Curve25519, s: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>) (IdentityElementError \|\| WeakPublicKeyError)!Curve25519 {</span> <span class="line" id="L100"> _ = <span class="tok-kw">try</span> p.clearCofactor();</span> <span class="line" id="L101"> <span class="tok-kw">return</span> <span class="tok-kw">try</span> ladder(p, s, <span class="tok-number">256</span>);</span> <span class="line" id="L102"> }</span> <span class="line" id="L103"></span> <span class="line" id="L104"> <span class="tok-comment">/// Compute the Curve25519 equivalent to an Edwards25519 point.</span></span> <span class="line" id="L105"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromEdwards25519</span>(p: crypto.ecc.Edwards25519) IdentityElementError!Curve25519 {</span> <span class="line" id="L106"> <span class="tok-kw">try</span> p.clearCofactor().rejectIdentity();</span> <span class="line" id="L107"> <span class="tok-kw">const</span> one = crypto.ecc.Edwards25519.Fe.one;</span> <span class="line" id="L108"> <span class="tok-kw">const</span> x = one.add(p.y).mul(one.sub(p.y).invert()); <span class="tok-comment">// xMont=(1+yEd)/(1-yEd)</span> </span> <span class="line" id="L109"> <span class="tok-kw">return</span> Curve25519{ .x = x };</span> <span class="line" id="L110"> }</span> <span class="line" id="L111">};</span> <span class="line" id="L112"></span> <span class="line" id="L113"><span class="tok-kw">test</span> <span class="tok-str">"curve25519"</span> {</span> <span class="line" id="L114"> <span class="tok-kw">var</span> s = [<span class="tok-number">32</span>]<span class="tok-type">u8</span>{ <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">8</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">8</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">8</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">8</span> };</span> <span class="line" id="L115"> <span class="tok-kw">const</span> p = <span class="tok-kw">try</span> Curve25519.basePoint.clampedMul(s);</span> <span class="line" id="L116"> <span class="tok-kw">try</span> p.rejectIdentity();</span> <span class="line" id="L117"> <span class="tok-kw">var</span> buf: [<span class="tok-number">128</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L118"> <span class="tok-kw">try</span> std.testing.expectEqualStrings(<span class="tok-kw">try</span> std.fmt.bufPrint(&buf, <span class="tok-str">"{s}"</span>, .{std.fmt.fmtSliceHexUpper(&p.toBytes())}), <span class="tok-str">"E6F2A4D1C28EE5C7AD0329268255A468AD407D2672824C0C0EB30EA6EF450145"</span>);</span> <span class="line" id="L119"> <span class="tok-kw">const</span> q = <span class="tok-kw">try</span> p.clampedMul(s);</span> <span class="line" id="L120"> <span class="tok-kw">try</span> std.testing.expectEqualStrings(<span class="tok-kw">try</span> std.fmt.bufPrint(&buf, <span class="tok-str">"{s}"</span>, .{std.fmt.fmtSliceHexUpper(&q.toBytes())}), <span class="tok-str">"3614E119FFE55EC55B87D6B19971A9F4CBC78EFE80BEC55B96392BABCC712537"</span>);</span> <span class="line" id="L121"></span> <span class="line" id="L122"> <span class="tok-kw">try</span> Curve25519.rejectNonCanonical(s);</span> <span class="line" id="L123"> s[<span class="tok-number">31</span>] \|= <span class="tok-number">0x80</span>;</span> <span class="line" id="L124"> <span class="tok-kw">try</span> std.testing.expectError(<span class="tok-kw">error</span>.NonCanonical, Curve25519.rejectNonCanonical(s));</span> <span class="line" id="L125">}</span> <span class="line" id="L126"></span> <span class="line" id="L127"><span class="tok-kw">test</span> <span class="tok-str">"curve25519 small order check"</span> {</span> <span class="line" id="L128"> <span class="tok-kw">var</span> s: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = [_]<span class="tok-type">u8</span>{<span class="tok-number">1</span>} ++ [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} <span class="tok-number">31</span>;</span> <span class="line" id="L129"> <span class="tok-kw">const</span> small_order_ss: [<span class="tok-number">7</span>][<span class="tok-number">32</span>]<span class="tok-type">u8</span> = .{</span> <span class="line" id="L130"> .{</span> <span class="line" id="L131"> <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-comment">// 0 (order 4)</span> </span> <span class="line" id="L132"> },</span> <span class="line" id="L133"> .{</span> <span class="line" id="L134"> <span class="tok-number">0x01</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-comment">// 1 (order 1)</span> </span> <span class="line" id="L135"> },</span> <span class="line" id="L136"> .{</span> <span class="line" id="L137"> <span class="tok-number">0xe0</span>, <span class="tok-number">0xeb</span>, <span class="tok-number">0x7a</span>, <span class="tok-number">0x7c</span>, <span class="tok-number">0x3b</span>, <span class="tok-number">0x41</span>, <span class="tok-number">0xb8</span>, <span class="tok-number">0xae</span>, <span class="tok-number">0x16</span>, <span class="tok-number">0x56</span>, <span class="tok-number">0xe3</span>, <span class="tok-number">0xfa</span>, <span class="tok-number">0xf1</span>, <span class="tok-number">0x9f</span>, <span class="tok-number">0xc4</span>, <span class="tok-number">0x6a</span>, <span class="tok-number">0xda</span>, <span class="tok-number">0x09</span>, <span class="tok-number">0x8d</span>, <span class="tok-number">0xeb</span>, <span class="tok-number">0x9c</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0xb1</span>, <span class="tok-number">0xfd</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0x62</span>, <span class="tok-number">0x05</span>, <span class="tok-number">0x16</span>, <span class="tok-number">0x5f</span>, <span class="tok-number">0x49</span>, <span class="tok-number">0xb8</span>, <span class="tok-number">0x00</span>, <span class="tok-comment">// 325606250916557431795983626356110631294008115727848805560023387167927233504 (order 8) */</span> </span> <span class="line" id="L138"> },</span> <span class="line" id="L139"> .{</span> <span class="line" id="L140"> <span class="tok-number">0x5f</span>, <span class="tok-number">0x9c</span>, <span class="tok-number">0x95</span>, <span class="tok-number">0xbc</span>, <span class="tok-number">0xa3</span>, <span class="tok-number">0x50</span>, <span class="tok-number">0x8c</span>, <span class="tok-number">0x24</span>, <span class="tok-number">0xb1</span>, <span class="tok-number">0xd0</span>, <span class="tok-number">0xb1</span>, <span class="tok-number">0x55</span>, <span class="tok-number">0x9c</span>, <span class="tok-number">0x83</span>, <span class="tok-number">0xef</span>, <span class="tok-number">0x5b</span>, <span class="tok-number">0x04</span>, <span class="tok-number">0x44</span>, <span class="tok-number">0x5c</span>, <span class="tok-number">0xc4</span>, <span class="tok-number">0x58</span>, <span class="tok-number">0x1c</span>, <span class="tok-number">0x8e</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0xd8</span>, <span class="tok-number">0x22</span>, <span class="tok-number">0x4e</span>, <span class="tok-number">0xdd</span>, <span class="tok-number">0xd0</span>, <span class="tok-number">0x9f</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0x57</span>, <span class="tok-comment">// 39382357235489614581723060781553021112529911719440698176882885853963445705823 (order 8)</span> </span> <span class="line" id="L141"> },</span> <span class="line" id="L142"> .{</span> <span class="line" id="L143"> <span class="tok-number">0xec</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0x7f</span>, <span class="tok-comment">// p-1 (order 2)</span> </span> <span class="line" id="L144"> },</span> <span class="line" id="L145"> .{</span> <span class="line" id="L146"> <span class="tok-number">0xed</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0x7f</span>, <span class="tok-comment">// p (=0, order 4)</span> </span> <span class="line" id="L147"> },</span> <span class="line" id="L148"> .{</span> <span class="line" id="L149"> <span class="tok-number">0xee</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0x7f</span>, <span class="tok-comment">// p+1 (=1, order 1)</span> </span> <span class="line" id="L150"> },</span> <span class="line" id="L151"> };</span> <span class="line" id="L152"> <span class="tok-kw">for</span> (small_order_ss) \|small_order_s\| {</span> <span class="line" id="L153"> <span class="tok-kw">try</span> std.testing.expectError(<span class="tok-kw">error</span>.WeakPublicKey, Curve25519.fromBytes(small_order_s).clearCofactor());</span> <span class="line" id="L154"> <span class="tok-kw">try</span> std.testing.expectError(<span class="tok-kw">error</span>.WeakPublicKey, Curve25519.fromBytes(small_order_s).mul(s));</span> <span class="line" id="L155"> <span class="tok-kw">var</span> extra = small_order_s;</span> <span class="line" id="L156"> extra[<span class="tok-number">31</span>] ^= <span class="tok-number">0x80</span>;</span> <span class="line" id="L157"> <span class="tok-kw">try</span> std.testing.expectError(<span class="tok-kw">error</span>.WeakPublicKey, Curve25519.fromBytes(extra).mul(s));</span> <span class="line" id="L158"> <span class="tok-kw">var</span> valid = small_order_s;</span> <span class="line" id="L159"> valid[<span class="tok-number">31</span>] = <span class="tok-number">0x40</span>;</span> <span class="line" id="L160"> s[<span class="tok-number">0</span>] = <span class="tok-number">0</span>;</span> <span class="line" id="L161"> <span class="tok-kw">try</span> std.testing.expectError(<span class="tok-kw">error</span>.IdentityElement, Curve25519.fromBytes(valid).mul(s));</span> <span class="line" id="L162"> }</span> <span class="line" id="L163">}</span> <span class="line" id="L164"></span> </code></pre></body> </html>
repos/yazap/docs/src/std/crypto	repos/yazap/docs/src/std/crypto/25519/ristretto255.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/25519/ristretto255.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> fmt = std.fmt;</span> <span class="line" id="L3"></span> <span class="line" id="L4"><span class="tok-kw">const</span> EncodingError = std.crypto.errors.EncodingError;</span> <span class="line" id="L5"><span class="tok-kw">const</span> IdentityElementError = std.crypto.errors.IdentityElementError;</span> <span class="line" id="L6"><span class="tok-kw">const</span> NonCanonicalError = std.crypto.errors.NonCanonicalError;</span> <span class="line" id="L7"><span class="tok-kw">const</span> WeakPublicKeyError = std.crypto.errors.WeakPublicKeyError;</span> <span class="line" id="L8"></span> <span class="line" id="L9"><span class="tok-comment">/// Group operations over Edwards25519.</span></span> <span class="line" id="L10"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Ristretto255 = <span class="tok-kw">struct</span> {</span> <span class="line" id="L11"> <span class="tok-comment">/// The underlying elliptic curve.</span></span> <span class="line" id="L12"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Curve = <span class="tok-builtin">@import</span>(<span class="tok-str">"edwards25519.zig"</span>).Edwards25519;</span> <span class="line" id="L13"> <span class="tok-comment">/// The underlying prime field.</span></span> <span class="line" id="L14"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Fe = Curve.Fe;</span> <span class="line" id="L15"> <span class="tok-comment">/// Field arithmetic mod the order of the main subgroup.</span></span> <span class="line" id="L16"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> scalar = Curve.scalar;</span> <span class="line" id="L17"> <span class="tok-comment">/// Length in byte of an encoded element.</span></span> <span class="line" id="L18"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> encoded_length: <span class="tok-type">usize</span> = <span class="tok-number">32</span>;</span> <span class="line" id="L19"></span> <span class="line" id="L20"> p: Curve,</span> <span class="line" id="L21"></span> <span class="line" id="L22"> <span class="tok-kw">fn</span> <span class="tok-fn">sqrtRatioM1</span>(u: Fe, v: Fe) <span class="tok-kw">struct</span> { ratio_is_square: <span class="tok-type">u32</span>, root: Fe } {</span> <span class="line" id="L23"> <span class="tok-kw">const</span> v3 = v.sq().mul(v); <span class="tok-comment">// v^3</span> </span> <span class="line" id="L24"> <span class="tok-kw">var</span> x = v3.sq().mul(u).mul(v).pow2523().mul(v3).mul(u); <span class="tok-comment">// uv^3(uv^7)^((q-5)/8)</span> </span> <span class="line" id="L25"> <span class="tok-kw">const</span> vxx = x.sq().mul(v); <span class="tok-comment">// vx^2</span> </span> <span class="line" id="L26"> <span class="tok-kw">const</span> m_root_check = vxx.sub(u); <span class="tok-comment">// vx^2-u</span> </span> <span class="line" id="L27"> <span class="tok-kw">const</span> p_root_check = vxx.add(u); <span class="tok-comment">// vx^2+u</span> </span> <span class="line" id="L28"> <span class="tok-kw">const</span> f_root_check = u.mul(Fe.sqrtm1).add(vxx); <span class="tok-comment">// vx^2+usqrt(-1)</span> </span> <span class="line" id="L29"> <span class="tok-kw">const</span> has_m_root = m_root_check.isZero();</span> <span class="line" id="L30"> <span class="tok-kw">const</span> has_p_root = p_root_check.isZero();</span> <span class="line" id="L31"> <span class="tok-kw">const</span> has_f_root = f_root_check.isZero();</span> <span class="line" id="L32"> <span class="tok-kw">const</span> x_sqrtm1 = x.mul(Fe.sqrtm1); <span class="tok-comment">// xsqrt(-1)</span> </span> <span class="line" id="L33"> x.cMov(x_sqrtm1, <span class="tok-builtin">@intFromBool</span>(has_p_root) \| <span class="tok-builtin">@intFromBool</span>(has_f_root));</span> <span class="line" id="L34"> <span class="tok-kw">return</span> .{ .ratio_is_square = <span class="tok-builtin">@intFromBool</span>(has_m_root) \| <span class="tok-builtin">@intFromBool</span>(has_p_root), .root = x.abs() };</span> <span class="line" id="L35"> }</span> <span class="line" id="L36"></span> <span class="line" id="L37"> <span class="tok-kw">fn</span> <span class="tok-fn">rejectNonCanonical</span>(s: [encoded_length]<span class="tok-type">u8</span>) NonCanonicalError!<span class="tok-type">void</span> {</span> <span class="line" id="L38"> <span class="tok-kw">if</span> ((s[<span class="tok-number">0</span>] & <span class="tok-number">1</span>) != <span class="tok-number">0</span>) {</span> <span class="line" id="L39"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.NonCanonical;</span> <span class="line" id="L40"> }</span> <span class="line" id="L41"> <span class="tok-kw">try</span> Fe.rejectNonCanonical(s, <span class="tok-null">false</span>);</span> <span class="line" id="L42"> }</span> <span class="line" id="L43"></span> <span class="line" id="L44"> <span class="tok-comment">/// Reject the neutral element.</span></span> <span class="line" id="L45"> <span class="tok-kw">pub</span> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">rejectIdentity</span>(p: Ristretto255) IdentityElementError!<span class="tok-type">void</span> {</span> <span class="line" id="L46"> <span class="tok-kw">return</span> p.p.rejectIdentity();</span> <span class="line" id="L47"> }</span> <span class="line" id="L48"></span> <span class="line" id="L49"> <span class="tok-comment">/// The base point (Ristretto is a curve in desguise).</span></span> <span class="line" id="L50"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> basePoint = Ristretto255{ .p = Curve.basePoint };</span> <span class="line" id="L51"></span> <span class="line" id="L52"> <span class="tok-comment">/// Decode a Ristretto255 representative.</span></span> <span class="line" id="L53"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromBytes</span>(s: [encoded_length]<span class="tok-type">u8</span>) (NonCanonicalError \|\| EncodingError)!Ristretto255 {</span> <span class="line" id="L54"> <span class="tok-kw">try</span> rejectNonCanonical(s);</span> <span class="line" id="L55"> <span class="tok-kw">const</span> s_ = Fe.fromBytes(s);</span> <span class="line" id="L56"> <span class="tok-kw">const</span> ss = s_.sq(); <span class="tok-comment">// s^2</span> </span> <span class="line" id="L57"> <span class="tok-kw">const</span> u1_ = Fe.one.sub(ss); <span class="tok-comment">// (1-s^2)</span> </span> <span class="line" id="L58"> <span class="tok-kw">const</span> u1u1 = u1_.sq(); <span class="tok-comment">// (1-s^2)^2</span> </span> <span class="line" id="L59"> <span class="tok-kw">const</span> u2_ = Fe.one.add(ss); <span class="tok-comment">// (1+s^2)</span> </span> <span class="line" id="L60"> <span class="tok-kw">const</span> u2u2 = u2_.sq(); <span class="tok-comment">// (1+s^2)^2</span> </span> <span class="line" id="L61"> <span class="tok-kw">const</span> v = Fe.edwards25519d.mul(u1u1).neg().sub(u2u2); <span class="tok-comment">// -(du1^2)-u2^2</span> </span> <span class="line" id="L62"> <span class="tok-kw">const</span> v_u2u2 = v.mul(u2u2); <span class="tok-comment">// vu2^2</span> </span> <span class="line" id="L63"></span> <span class="line" id="L64"> <span class="tok-kw">const</span> inv_sqrt = sqrtRatioM1(Fe.one, v_u2u2);</span> <span class="line" id="L65"> <span class="tok-kw">var</span> x = inv_sqrt.root.mul(u2_);</span> <span class="line" id="L66"> <span class="tok-kw">const</span> y = inv_sqrt.root.mul(x).mul(v).mul(u1_);</span> <span class="line" id="L67"> x = x.mul(s_);</span> <span class="line" id="L68"> x = x.add(x).abs();</span> <span class="line" id="L69"> <span class="tok-kw">const</span> t = x.mul(y);</span> <span class="line" id="L70"> <span class="tok-kw">if</span> ((<span class="tok-number">1</span> - inv_sqrt.ratio_is_square) \| <span class="tok-builtin">@intFromBool</span>(t.isNegative()) \| <span class="tok-builtin">@intFromBool</span>(y.isZero()) != <span class="tok-number">0</span>) {</span> <span class="line" id="L71"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InvalidEncoding;</span> <span class="line" id="L72"> }</span> <span class="line" id="L73"> <span class="tok-kw">const</span> p: Curve = .{</span> <span class="line" id="L74"> .x = x,</span> <span class="line" id="L75"> .y = y,</span> <span class="line" id="L76"> .z = Fe.one,</span> <span class="line" id="L77"> .t = t,</span> <span class="line" id="L78"> };</span> <span class="line" id="L79"> <span class="tok-kw">return</span> Ristretto255{ .p = p };</span> <span class="line" id="L80"> }</span> <span class="line" id="L81"></span> <span class="line" id="L82"> <span class="tok-comment">/// Encode to a Ristretto255 representative.</span></span> <span class="line" id="L83"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toBytes</span>(e: Ristretto255) [encoded_length]<span class="tok-type">u8</span> {</span> <span class="line" id="L84"> <span class="tok-kw">const</span> p = &e.p;</span> <span class="line" id="L85"> <span class="tok-kw">var</span> u1_ = p.z.add(p.y); <span class="tok-comment">// Z+Y</span> </span> <span class="line" id="L86"> <span class="tok-kw">const</span> zmy = p.z.sub(p.y); <span class="tok-comment">// Z-Y</span> </span> <span class="line" id="L87"> u1_ = u1_.mul(zmy); <span class="tok-comment">// (Z+Y)(Z-Y)</span> </span> <span class="line" id="L88"> <span class="tok-kw">const</span> u2_ = p.x.mul(p.y); <span class="tok-comment">// XY</span> </span> <span class="line" id="L89"> <span class="tok-kw">const</span> u1_u2u2 = u2_.sq().mul(u1_); <span class="tok-comment">// u1u2^2</span> </span> <span class="line" id="L90"> <span class="tok-kw">const</span> inv_sqrt = sqrtRatioM1(Fe.one, u1_u2u2);</span> <span class="line" id="L91"> <span class="tok-kw">const</span> den1 = inv_sqrt.root.mul(u1_);</span> <span class="line" id="L92"> <span class="tok-kw">const</span> den2 = inv_sqrt.root.mul(u2_);</span> <span class="line" id="L93"> <span class="tok-kw">const</span> z_inv = den1.mul(den2).mul(p.t); <span class="tok-comment">// den1den2T</span> </span> <span class="line" id="L94"> <span class="tok-kw">const</span> ix = p.x.mul(Fe.sqrtm1); <span class="tok-comment">// Xsqrt(-1)</span> </span> <span class="line" id="L95"> <span class="tok-kw">const</span> iy = p.y.mul(Fe.sqrtm1); <span class="tok-comment">// Ysqrt(-1)</span> </span> <span class="line" id="L96"> <span class="tok-kw">const</span> eden = den1.mul(Fe.edwards25519sqrtamd); <span class="tok-comment">// den1/sqrt(a-d)</span> </span> <span class="line" id="L97"> <span class="tok-kw">const</span> t_z_inv = p.t.mul(z_inv); <span class="tok-comment">// Tz_inv</span> </span> <span class="line" id="L98"></span> <span class="line" id="L99"> <span class="tok-kw">const</span> rotate = <span class="tok-builtin">@intFromBool</span>(t_z_inv.isNegative());</span> <span class="line" id="L100"> <span class="tok-kw">var</span> x = p.x;</span> <span class="line" id="L101"> <span class="tok-kw">var</span> y = p.y;</span> <span class="line" id="L102"> <span class="tok-kw">var</span> den_inv = den2;</span> <span class="line" id="L103"> x.cMov(iy, rotate);</span> <span class="line" id="L104"> y.cMov(ix, rotate);</span> <span class="line" id="L105"> den_inv.cMov(eden, rotate);</span> <span class="line" id="L106"></span> <span class="line" id="L107"> <span class="tok-kw">const</span> x_z_inv = x.mul(z_inv);</span> <span class="line" id="L108"> <span class="tok-kw">const</span> yneg = y.neg();</span> <span class="line" id="L109"> y.cMov(yneg, <span class="tok-builtin">@intFromBool</span>(x_z_inv.isNegative()));</span> <span class="line" id="L110"></span> <span class="line" id="L111"> <span class="tok-kw">return</span> p.z.sub(y).mul(den_inv).abs().toBytes();</span> <span class="line" id="L112"> }</span> <span class="line" id="L113"></span> <span class="line" id="L114"> <span class="tok-kw">fn</span> <span class="tok-fn">elligator</span>(t: Fe) Curve {</span> <span class="line" id="L115"> <span class="tok-kw">const</span> r = t.sq().mul(Fe.sqrtm1); <span class="tok-comment">// sqrt(-1)t^2</span> </span> <span class="line" id="L116"> <span class="tok-kw">const</span> u = r.add(Fe.one).mul(Fe.edwards25519eonemsqd); <span class="tok-comment">// (r+1)(1-d^2)</span> </span> <span class="line" id="L117"> <span class="tok-kw">var</span> c = <span class="tok-kw">comptime</span> Fe.one.neg(); <span class="tok-comment">// -1</span> </span> <span class="line" id="L118"> <span class="tok-kw">const</span> v = c.sub(r.mul(Fe.edwards25519d)).mul(r.add(Fe.edwards25519d)); <span class="tok-comment">// (c-rd)(r+d)</span> </span> <span class="line" id="L119"> <span class="tok-kw">const</span> ratio_sqrt = sqrtRatioM1(u, v);</span> <span class="line" id="L120"> <span class="tok-kw">const</span> wasnt_square = <span class="tok-number">1</span> - ratio_sqrt.ratio_is_square;</span> <span class="line" id="L121"> <span class="tok-kw">var</span> s = ratio_sqrt.root;</span> <span class="line" id="L122"> <span class="tok-kw">const</span> s_prime = s.mul(t).abs().neg(); <span class="tok-comment">// -\|st\|</span> </span> <span class="line" id="L123"> s.cMov(s_prime, wasnt_square);</span> <span class="line" id="L124"> c.cMov(r, wasnt_square);</span> <span class="line" id="L125"></span> <span class="line" id="L126"> <span class="tok-kw">const</span> n = r.sub(Fe.one).mul(c).mul(Fe.edwards25519sqdmone).sub(v); <span class="tok-comment">// c(r-1)(d-1)^2-v</span> </span> <span class="line" id="L127"> <span class="tok-kw">const</span> w0 = s.add(s).mul(v); <span class="tok-comment">// 2sv</span> </span> <span class="line" id="L128"> <span class="tok-kw">const</span> w1 = n.mul(Fe.edwards25519sqrtadm1); <span class="tok-comment">// nsqrt(ad-1)</span> </span> <span class="line" id="L129"> <span class="tok-kw">const</span> ss = s.sq(); <span class="tok-comment">// s^2</span> </span> <span class="line" id="L130"> <span class="tok-kw">const</span> w2 = Fe.one.sub(ss); <span class="tok-comment">// 1-s^2</span> </span> <span class="line" id="L131"> <span class="tok-kw">const</span> w3 = Fe.one.add(ss); <span class="tok-comment">// 1+s^2</span> </span> <span class="line" id="L132"></span> <span class="line" id="L133"> <span class="tok-kw">return</span> .{ .x = w0.mul(w3), .y = w2.mul(w1), .z = w1.mul(w3), .t = w0.mul(w2) };</span> <span class="line" id="L134"> }</span> <span class="line" id="L135"></span> <span class="line" id="L136"> <span class="tok-comment">/// Map a 64-bit string into a Ristretto255 group element</span></span> <span class="line" id="L137"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromUniform</span>(h: [<span class="tok-number">64</span>]<span class="tok-type">u8</span>) Ristretto255 {</span> <span class="line" id="L138"> <span class="tok-kw">const</span> p0 = elligator(Fe.fromBytes(h[<span class="tok-number">0</span>..<span class="tok-number">32</span>].));</span> <span class="line" id="L139"> <span class="tok-kw">const</span> p1 = elligator(Fe.fromBytes(h[<span class="tok-number">32</span>..<span class="tok-number">64</span>].));</span> <span class="line" id="L140"> <span class="tok-kw">return</span> Ristretto255{ .p = p0.add(p1) };</span> <span class="line" id="L141"> }</span> <span class="line" id="L142"></span> <span class="line" id="L143"> <span class="tok-comment">/// Double a Ristretto255 element.</span></span> <span class="line" id="L144"> <span class="tok-kw">pub</span> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">dbl</span>(p: Ristretto255) Ristretto255 {</span> <span class="line" id="L145"> <span class="tok-kw">return</span> .{ .p = p.p.dbl() };</span> <span class="line" id="L146"> }</span> <span class="line" id="L147"></span> <span class="line" id="L148"> <span class="tok-comment">/// Add two Ristretto255 elements.</span></span> <span class="line" id="L149"> <span class="tok-kw">pub</span> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">add</span>(p: Ristretto255, q: Ristretto255) Ristretto255 {</span> <span class="line" id="L150"> <span class="tok-kw">return</span> .{ .p = p.p.add(q.p) };</span> <span class="line" id="L151"> }</span> <span class="line" id="L152"></span> <span class="line" id="L153"> <span class="tok-comment">/// Multiply a Ristretto255 element with a scalar.</span></span> <span class="line" id="L154"> <span class="tok-comment">/// Return error.WeakPublicKey if the resulting element is</span></span> <span class="line" id="L155"> <span class="tok-comment">/// the identity element.</span></span> <span class="line" id="L156"> <span class="tok-kw">pub</span> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">mul</span>(p: Ristretto255, s: [encoded_length]<span class="tok-type">u8</span>) (IdentityElementError \|\| WeakPublicKeyError)!Ristretto255 {</span> <span class="line" id="L157"> <span class="tok-kw">return</span> Ristretto255{ .p = <span class="tok-kw">try</span> p.p.mul(s) };</span> <span class="line" id="L158"> }</span> <span class="line" id="L159"></span> <span class="line" id="L160"> <span class="tok-comment">/// Return true if two Ristretto255 elements are equivalent</span></span> <span class="line" id="L161"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">equivalent</span>(p: Ristretto255, q: Ristretto255) <span class="tok-type">bool</span> {</span> <span class="line" id="L162"> <span class="tok-kw">const</span> p_ = &p.p;</span> <span class="line" id="L163"> <span class="tok-kw">const</span> q_ = &q.p;</span> <span class="line" id="L164"> <span class="tok-kw">const</span> a = p_.x.mul(q_.y).equivalent(p_.y.mul(q_.x));</span> <span class="line" id="L165"> <span class="tok-kw">const</span> b = p_.y.mul(q_.y).equivalent(p_.x.mul(q_.x));</span> <span class="line" id="L166"> <span class="tok-kw">return</span> (<span class="tok-builtin">@intFromBool</span>(a) \| <span class="tok-builtin">@intFromBool</span>(b)) != <span class="tok-number">0</span>;</span> <span class="line" id="L167"> }</span> <span class="line" id="L168">};</span> <span class="line" id="L169"></span> <span class="line" id="L170"><span class="tok-kw">test</span> <span class="tok-str">"ristretto255"</span> {</span> <span class="line" id="L171"> <span class="tok-kw">const</span> p = Ristretto255.basePoint;</span> <span class="line" id="L172"> <span class="tok-kw">var</span> buf: [<span class="tok-number">256</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L173"> <span class="tok-kw">try</span> std.testing.expectEqualStrings(<span class="tok-kw">try</span> std.fmt.bufPrint(&buf, <span class="tok-str">"{s}"</span>, .{std.fmt.fmtSliceHexUpper(&p.toBytes())}), <span class="tok-str">"E2F2AE0A6ABC4E71A884A961C500515F58E30B6AA582DD8DB6A65945E08D2D76"</span>);</span> <span class="line" id="L174"></span> <span class="line" id="L175"> <span class="tok-kw">var</span> r: [Ristretto255.encoded_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L176"> _ = <span class="tok-kw">try</span> fmt.hexToBytes(r[<span class="tok-number">0</span>..], <span class="tok-str">"6a493210f7499cd17fecb510ae0cea23a110e8d5b901f8acadd3095c73a3b919"</span>);</span> <span class="line" id="L177"> <span class="tok-kw">var</span> q = <span class="tok-kw">try</span> Ristretto255.fromBytes(r);</span> <span class="line" id="L178"> q = q.dbl().add(p);</span> <span class="line" id="L179"> <span class="tok-kw">try</span> std.testing.expectEqualStrings(<span class="tok-kw">try</span> std.fmt.bufPrint(&buf, <span class="tok-str">"{s}"</span>, .{std.fmt.fmtSliceHexUpper(&q.toBytes())}), <span class="tok-str">"E882B131016B52C1D3337080187CF768423EFCCBB517BB495AB812C4160FF44E"</span>);</span> <span class="line" id="L180"></span> <span class="line" id="L181"> <span class="tok-kw">const</span> s = [_]<span class="tok-type">u8</span>{<span class="tok-number">15</span>} ++ [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} * <span class="tok-number">31</span>;</span> <span class="line" id="L182"> <span class="tok-kw">const</span> w = <span class="tok-kw">try</span> p.mul(s);</span> <span class="line" id="L183"> <span class="tok-kw">try</span> std.testing.expectEqualStrings(<span class="tok-kw">try</span> std.fmt.bufPrint(&buf, <span class="tok-str">"{s}"</span>, .{std.fmt.fmtSliceHexUpper(&w.toBytes())}), <span class="tok-str">"E0C418F7C8D9C4CDD7395B93EA124F3AD99021BB681DFC3302A9D99A2E53E64E"</span>);</span> <span class="line" id="L184"></span> <span class="line" id="L185"> <span class="tok-kw">try</span> std.testing.expect(p.dbl().dbl().dbl().dbl().equivalent(w.add(p)));</span> <span class="line" id="L186"></span> <span class="line" id="L187"> <span class="tok-kw">const</span> h = [_]<span class="tok-type">u8</span>{<span class="tok-number">69</span>} <span class="tok-number">32</span> ++ [_]<span class="tok-type">u8</span>{<span class="tok-number">42</span>} <span class="tok-number">32</span>;</span> <span class="line" id="L188"> <span class="tok-kw">const</span> ph = Ristretto255.fromUniform(h);</span> <span class="line" id="L189"> <span class="tok-kw">try</span> std.testing.expectEqualStrings(<span class="tok-kw">try</span> std.fmt.bufPrint(&buf, <span class="tok-str">"{s}"</span>, .{std.fmt.fmtSliceHexUpper(&ph.toBytes())}), <span class="tok-str">"DCCA54E037A4311EFBEEF413ACD21D35276518970B7A61DC88F8587B493D5E19"</span>);</span> <span class="line" id="L190">}</span> <span class="line" id="L191"></span> </code></pre></body> </html>
repos/yazap/docs/src/std/crypto	repos/yazap/docs/src/std/crypto/25519/edwards25519.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/25519/edwards25519.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> crypto = std.crypto;</span> <span class="line" id="L3"><span class="tok-kw">const</span> debug = std.debug;</span> <span class="line" id="L4"><span class="tok-kw">const</span> fmt = std.fmt;</span> <span class="line" id="L5"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L6"></span> <span class="line" id="L7"><span class="tok-kw">const</span> EncodingError = crypto.errors.EncodingError;</span> <span class="line" id="L8"><span class="tok-kw">const</span> IdentityElementError = crypto.errors.IdentityElementError;</span> <span class="line" id="L9"><span class="tok-kw">const</span> NonCanonicalError = crypto.errors.NonCanonicalError;</span> <span class="line" id="L10"><span class="tok-kw">const</span> NotSquareError = crypto.errors.NotSquareError;</span> <span class="line" id="L11"><span class="tok-kw">const</span> WeakPublicKeyError = crypto.errors.WeakPublicKeyError;</span> <span class="line" id="L12"></span> <span class="line" id="L13"><span class="tok-comment">/// Group operations over Edwards25519.</span></span> <span class="line" id="L14"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Edwards25519 = <span class="tok-kw">struct</span> {</span> <span class="line" id="L15"> <span class="tok-comment">/// The underlying prime field.</span></span> <span class="line" id="L16"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Fe = <span class="tok-builtin">@import</span>(<span class="tok-str">"field.zig"</span>).Fe;</span> <span class="line" id="L17"> <span class="tok-comment">/// Field arithmetic mod the order of the main subgroup.</span></span> <span class="line" id="L18"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> scalar = <span class="tok-builtin">@import</span>(<span class="tok-str">"scalar.zig"</span>);</span> <span class="line" id="L19"> <span class="tok-comment">/// Length in bytes of a compressed representation of a point.</span></span> <span class="line" id="L20"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> encoded_length: <span class="tok-type">usize</span> = <span class="tok-number">32</span>;</span> <span class="line" id="L21"></span> <span class="line" id="L22"> x: Fe,</span> <span class="line" id="L23"> y: Fe,</span> <span class="line" id="L24"> z: Fe,</span> <span class="line" id="L25"> t: Fe,</span> <span class="line" id="L26"></span> <span class="line" id="L27"> is_base: <span class="tok-type">bool</span> = <span class="tok-null">false</span>,</span> <span class="line" id="L28"></span> <span class="line" id="L29"> <span class="tok-comment">/// Decode an Edwards25519 point from its compressed (Y+sign) coordinates.</span></span> <span class="line" id="L30"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromBytes</span>(s: [encoded_length]<span class="tok-type">u8</span>) EncodingError!Edwards25519 {</span> <span class="line" id="L31"> <span class="tok-kw">const</span> z = Fe.one;</span> <span class="line" id="L32"> <span class="tok-kw">const</span> y = Fe.fromBytes(s);</span> <span class="line" id="L33"> <span class="tok-kw">var</span> u = y.sq();</span> <span class="line" id="L34"> <span class="tok-kw">var</span> v = u.mul(Fe.edwards25519d);</span> <span class="line" id="L35"> u = u.sub(z);</span> <span class="line" id="L36"> v = v.add(z);</span> <span class="line" id="L37"> <span class="tok-kw">var</span> x = u.mul(v).pow2523().mul(u);</span> <span class="line" id="L38"> <span class="tok-kw">const</span> vxx = x.sq().mul(v);</span> <span class="line" id="L39"> <span class="tok-kw">const</span> has_m_root = vxx.sub(u).isZero();</span> <span class="line" id="L40"> <span class="tok-kw">const</span> has_p_root = vxx.add(u).isZero();</span> <span class="line" id="L41"> <span class="tok-kw">if</span> ((<span class="tok-builtin">@intFromBool</span>(has_m_root) \| <span class="tok-builtin">@intFromBool</span>(has_p_root)) == <span class="tok-number">0</span>) { <span class="tok-comment">// best-effort to avoid two conditional branches</span> </span> <span class="line" id="L42"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.InvalidEncoding;</span> <span class="line" id="L43"> }</span> <span class="line" id="L44"> x.cMov(x.mul(Fe.sqrtm1), <span class="tok-number">1</span> - <span class="tok-builtin">@intFromBool</span>(has_m_root));</span> <span class="line" id="L45"> x.cMov(x.neg(), <span class="tok-builtin">@intFromBool</span>(x.isNegative()) ^ (s[<span class="tok-number">31</span>] >> <span class="tok-number">7</span>));</span> <span class="line" id="L46"> <span class="tok-kw">const</span> t = x.mul(y);</span> <span class="line" id="L47"> <span class="tok-kw">return</span> Edwards25519{ .x = x, .y = y, .z = z, .t = t };</span> <span class="line" id="L48"> }</span> <span class="line" id="L49"></span> <span class="line" id="L50"> <span class="tok-comment">/// Encode an Edwards25519 point.</span></span> <span class="line" id="L51"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toBytes</span>(p: Edwards25519) [encoded_length]<span class="tok-type">u8</span> {</span> <span class="line" id="L52"> <span class="tok-kw">const</span> zi = p.z.invert();</span> <span class="line" id="L53"> <span class="tok-kw">var</span> s = p.y.mul(zi).toBytes();</span> <span class="line" id="L54"> s[<span class="tok-number">31</span>] ^= <span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intFromBool</span>(p.x.mul(zi).isNegative())) << <span class="tok-number">7</span>;</span> <span class="line" id="L55"> <span class="tok-kw">return</span> s;</span> <span class="line" id="L56"> }</span> <span class="line" id="L57"></span> <span class="line" id="L58"> <span class="tok-comment">/// Check that the encoding of a point is canonical.</span></span> <span class="line" id="L59"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">rejectNonCanonical</span>(s: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>) NonCanonicalError!<span class="tok-type">void</span> {</span> <span class="line" id="L60"> <span class="tok-kw">return</span> Fe.rejectNonCanonical(s, <span class="tok-null">true</span>);</span> <span class="line" id="L61"> }</span> <span class="line" id="L62"></span> <span class="line" id="L63"> <span class="tok-comment">/// The edwards25519 base point.</span></span> <span class="line" id="L64"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> basePoint = Edwards25519{</span> <span class="line" id="L65"> .x = Fe{ .limbs = .{ <span class="tok-number">1738742601995546</span>, <span class="tok-number">1146398526822698</span>, <span class="tok-number">2070867633025821</span>, <span class="tok-number">562264141797630</span>, <span class="tok-number">587772402128613</span> } },</span> <span class="line" id="L66"> .y = Fe{ .limbs = .{ <span class="tok-number">1801439850948184</span>, <span class="tok-number">1351079888211148</span>, <span class="tok-number">450359962737049</span>, <span class="tok-number">900719925474099</span>, <span class="tok-number">1801439850948198</span> } },</span> <span class="line" id="L67"> .z = Fe.one,</span> <span class="line" id="L68"> .t = Fe{ .limbs = .{ <span class="tok-number">1841354044333475</span>, <span class="tok-number">16398895984059</span>, <span class="tok-number">755974180946558</span>, <span class="tok-number">900171276175154</span>, <span class="tok-number">1821297809914039</span> } },</span> <span class="line" id="L69"> .is_base = <span class="tok-null">true</span>,</span> <span class="line" id="L70"> };</span> <span class="line" id="L71"></span> <span class="line" id="L72"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> identityElement = Edwards25519{ .x = Fe.zero, .y = Fe.one, .z = Fe.one, .t = Fe.zero };</span> <span class="line" id="L73"></span> <span class="line" id="L74"> <span class="tok-comment">/// Reject the neutral element.</span></span> <span class="line" id="L75"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">rejectIdentity</span>(p: Edwards25519) IdentityElementError!<span class="tok-type">void</span> {</span> <span class="line" id="L76"> <span class="tok-kw">if</span> (p.x.isZero()) {</span> <span class="line" id="L77"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.IdentityElement;</span> <span class="line" id="L78"> }</span> <span class="line" id="L79"> }</span> <span class="line" id="L80"></span> <span class="line" id="L81"> <span class="tok-comment">/// Multiply a point by the cofactor</span></span> <span class="line" id="L82"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">clearCofactor</span>(p: Edwards25519) Edwards25519 {</span> <span class="line" id="L83"> <span class="tok-kw">return</span> p.dbl().dbl().dbl();</span> <span class="line" id="L84"> }</span> <span class="line" id="L85"></span> <span class="line" id="L86"> <span class="tok-comment">/// Check that the point does not generate a low-order group.</span></span> <span class="line" id="L87"> <span class="tok-comment">/// Return a `WeakPublicKey` error if it does.</span></span> <span class="line" id="L88"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">rejectLowOrder</span>(p: Edwards25519) WeakPublicKeyError!<span class="tok-type">void</span> {</span> <span class="line" id="L89"> <span class="tok-kw">const</span> zi = p.z.invert();</span> <span class="line" id="L90"> <span class="tok-kw">const</span> x = p.x.mul(zi);</span> <span class="line" id="L91"> <span class="tok-kw">const</span> y = p.y.mul(zi);</span> <span class="line" id="L92"> <span class="tok-kw">const</span> x_neg = x.neg();</span> <span class="line" id="L93"> <span class="tok-kw">const</span> iy = Fe.sqrtm1.mul(y);</span> <span class="line" id="L94"> <span class="tok-kw">if</span> (x.isZero() <span class="tok-kw">or</span> y.isZero() <span class="tok-kw">or</span> iy.equivalent(x) <span class="tok-kw">or</span> iy.equivalent(x_neg)) {</span> <span class="line" id="L95"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.WeakPublicKey;</span> <span class="line" id="L96"> }</span> <span class="line" id="L97"> }</span> <span class="line" id="L98"></span> <span class="line" id="L99"> <span class="tok-comment">/// Flip the sign of the X coordinate.</span></span> <span class="line" id="L100"> <span class="tok-kw">pub</span> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">neg</span>(p: Edwards25519) Edwards25519 {</span> <span class="line" id="L101"> <span class="tok-kw">return</span> .{ .x = p.x.neg(), .y = p.y, .z = p.z, .t = p.t.neg() };</span> <span class="line" id="L102"> }</span> <span class="line" id="L103"></span> <span class="line" id="L104"> <span class="tok-comment">/// Double an Edwards25519 point.</span></span> <span class="line" id="L105"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">dbl</span>(p: Edwards25519) Edwards25519 {</span> <span class="line" id="L106"> <span class="tok-kw">const</span> t0 = p.x.add(p.y).sq();</span> <span class="line" id="L107"> <span class="tok-kw">var</span> x = p.x.sq();</span> <span class="line" id="L108"> <span class="tok-kw">var</span> z = p.y.sq();</span> <span class="line" id="L109"> <span class="tok-kw">const</span> y = z.add(x);</span> <span class="line" id="L110"> z = z.sub(x);</span> <span class="line" id="L111"> x = t0.sub(y);</span> <span class="line" id="L112"> <span class="tok-kw">const</span> t = p.z.sq2().sub(z);</span> <span class="line" id="L113"> <span class="tok-kw">return</span> .{</span> <span class="line" id="L114"> .x = x.mul(t),</span> <span class="line" id="L115"> .y = y.mul(z),</span> <span class="line" id="L116"> .z = z.mul(t),</span> <span class="line" id="L117"> .t = x.mul(y),</span> <span class="line" id="L118"> };</span> <span class="line" id="L119"> }</span> <span class="line" id="L120"></span> <span class="line" id="L121"> <span class="tok-comment">/// Add two Edwards25519 points.</span></span> <span class="line" id="L122"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">add</span>(p: Edwards25519, q: Edwards25519) Edwards25519 {</span> <span class="line" id="L123"> <span class="tok-kw">const</span> a = p.y.sub(p.x).mul(q.y.sub(q.x));</span> <span class="line" id="L124"> <span class="tok-kw">const</span> b = p.x.add(p.y).mul(q.x.add(q.y));</span> <span class="line" id="L125"> <span class="tok-kw">const</span> c = p.t.mul(q.t).mul(Fe.edwards25519d2);</span> <span class="line" id="L126"> <span class="tok-kw">var</span> d = p.z.mul(q.z);</span> <span class="line" id="L127"> d = d.add(d);</span> <span class="line" id="L128"> <span class="tok-kw">const</span> x = b.sub(a);</span> <span class="line" id="L129"> <span class="tok-kw">const</span> y = b.add(a);</span> <span class="line" id="L130"> <span class="tok-kw">const</span> z = d.add(c);</span> <span class="line" id="L131"> <span class="tok-kw">const</span> t = d.sub(c);</span> <span class="line" id="L132"> <span class="tok-kw">return</span> .{</span> <span class="line" id="L133"> .x = x.mul(t),</span> <span class="line" id="L134"> .y = y.mul(z),</span> <span class="line" id="L135"> .z = z.mul(t),</span> <span class="line" id="L136"> .t = x.mul(y),</span> <span class="line" id="L137"> };</span> <span class="line" id="L138"> }</span> <span class="line" id="L139"></span> <span class="line" id="L140"> <span class="tok-comment">/// Subtract two Edwards25519 points.</span></span> <span class="line" id="L141"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">sub</span>(p: Edwards25519, q: Edwards25519) Edwards25519 {</span> <span class="line" id="L142"> <span class="tok-kw">return</span> p.add(q.neg());</span> <span class="line" id="L143"> }</span> <span class="line" id="L144"></span> <span class="line" id="L145"> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">cMov</span>(p: Edwards25519, a: Edwards25519, c: <span class="tok-type">u64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L146"> p.x.cMov(a.x, c);</span> <span class="line" id="L147"> p.y.cMov(a.y, c);</span> <span class="line" id="L148"> p.z.cMov(a.z, c);</span> <span class="line" id="L149"> p.t.cMov(a.t, c);</span> <span class="line" id="L150"> }</span> <span class="line" id="L151"></span> <span class="line" id="L152"> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">pcSelect</span>(<span class="tok-kw">comptime</span> n: <span class="tok-type">usize</span>, pc: <span class="tok-kw">const</span> [n]Edwards25519, b: <span class="tok-type">u8</span>) Edwards25519 {</span> <span class="line" id="L153"> <span class="tok-kw">var</span> t = Edwards25519.identityElement;</span> <span class="line" id="L154"> <span class="tok-kw">comptime</span> <span class="tok-kw">var</span> i: <span class="tok-type">u8</span> = <span class="tok-number">1</span>;</span> <span class="line" id="L155"> <span class="tok-kw">inline</span> <span class="tok-kw">while</span> (i < pc.len) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L156"> t.cMov(pc[i], ((<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, b ^ i) -% <span class="tok-number">1</span>) >> <span class="tok-number">8</span>) & <span class="tok-number">1</span>);</span> <span class="line" id="L157"> }</span> <span class="line" id="L158"> <span class="tok-kw">return</span> t;</span> <span class="line" id="L159"> }</span> <span class="line" id="L160"></span> <span class="line" id="L161"> <span class="tok-kw">fn</span> <span class="tok-fn">slide</span>(s: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>) [<span class="tok-number">2</span> * <span class="tok-number">32</span>]<span class="tok-type">i8</span> {</span> <span class="line" id="L162"> <span class="tok-kw">const</span> reduced = <span class="tok-kw">if</span> ((s[s.len - <span class="tok-number">1</span>] & <span class="tok-number">0x80</span>) == <span class="tok-number">0</span>) s <span class="tok-kw">else</span> scalar.reduce(s);</span> <span class="line" id="L163"> <span class="tok-kw">var</span> e: [<span class="tok-number">2</span> * <span class="tok-number">32</span>]<span class="tok-type">i8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L164"> <span class="tok-kw">for</span> (reduced, <span class="tok-number">0</span>..) \|x, i\| {</span> <span class="line" id="L165"> e[i * <span class="tok-number">2</span> + <span class="tok-number">0</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">i8</span>, <span class="tok-builtin">@as</span>(<span class="tok-type">u4</span>, <span class="tok-builtin">@truncate</span>(x)));</span> <span class="line" id="L166"> e[i * <span class="tok-number">2</span> + <span class="tok-number">1</span>] = <span class="tok-builtin">@as</span>(<span class="tok-type">i8</span>, <span class="tok-builtin">@as</span>(<span class="tok-type">u4</span>, <span class="tok-builtin">@truncate</span>(x >> <span class="tok-number">4</span>)));</span> <span class="line" id="L167"> }</span> <span class="line" id="L168"> <span class="tok-comment">// Now, e[0..63] is between 0 and 15, e[63] is between 0 and 7</span> </span> <span class="line" id="L169"> <span class="tok-kw">var</span> carry: <span class="tok-type">i8</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L170"> <span class="tok-kw">for</span> (e[<span class="tok-number">0</span>..<span class="tok-number">63</span>]) \|x\| {</span> <span class="line" id="L171"> x. += carry;</span> <span class="line" id="L172"> carry = (x.* + <span class="tok-number">8</span>) >> <span class="tok-number">4</span>;</span> <span class="line" id="L173"> x.* -= carry * <span class="tok-number">16</span>;</span> <span class="line" id="L174"> }</span> <span class="line" id="L175"> e[<span class="tok-number">63</span>] += carry;</span> <span class="line" id="L176"> <span class="tok-comment">// Now, e[] is between -8 and 8, including e[63]</span> </span> <span class="line" id="L177"> <span class="tok-kw">return</span> e;</span> <span class="line" id="L178"> }</span> <span class="line" id="L179"></span> <span class="line" id="L180"> <span class="tok-comment">// Scalar multiplication with a 4-bit window and the first 8 multiples.</span> </span> <span class="line" id="L181"> <span class="tok-comment">// This requires the scalar to be converted to non-adjacent form.</span> </span> <span class="line" id="L182"> <span class="tok-comment">// Based on real-world benchmarks, we only use this for multi-scalar multiplication.</span> </span> <span class="line" id="L183"> <span class="tok-comment">// NAF could be useful to half the size of precomputation tables, but we intentionally</span> </span> <span class="line" id="L184"> <span class="tok-comment">// avoid these to keep the standard library lightweight.</span> </span> <span class="line" id="L185"> <span class="tok-kw">fn</span> <span class="tok-fn">pcMul</span>(pc: <span class="tok-kw">const</span> [<span class="tok-number">9</span>]Edwards25519, s: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>, <span class="tok-kw">comptime</span> vartime: <span class="tok-type">bool</span>) IdentityElementError!Edwards25519 {</span> <span class="line" id="L186"> std.debug.assert(vartime);</span> <span class="line" id="L187"> <span class="tok-kw">const</span> e = slide(s);</span> <span class="line" id="L188"> <span class="tok-kw">var</span> q = Edwards25519.identityElement;</span> <span class="line" id="L189"> <span class="tok-kw">var</span> pos: <span class="tok-type">usize</span> = <span class="tok-number">2</span> * <span class="tok-number">32</span> - <span class="tok-number">1</span>;</span> <span class="line" id="L190"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) : (pos -= <span class="tok-number">1</span>) {</span> <span class="line" id="L191"> <span class="tok-kw">const</span> slot = e[pos];</span> <span class="line" id="L192"> <span class="tok-kw">if</span> (slot > <span class="tok-number">0</span>) {</span> <span class="line" id="L193"> q = q.add(pc[<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(slot))]);</span> <span class="line" id="L194"> } <span class="tok-kw">else</span> <span class="tok-kw">if</span> (slot < <span class="tok-number">0</span>) {</span> <span class="line" id="L195"> q = q.sub(pc[<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(-slot))]);</span> <span class="line" id="L196"> }</span> <span class="line" id="L197"> <span class="tok-kw">if</span> (pos == <span class="tok-number">0</span>) <span class="tok-kw">break</span>;</span> <span class="line" id="L198"> q = q.dbl().dbl().dbl().dbl();</span> <span class="line" id="L199"> }</span> <span class="line" id="L200"> <span class="tok-kw">try</span> q.rejectIdentity();</span> <span class="line" id="L201"> <span class="tok-kw">return</span> q;</span> <span class="line" id="L202"> }</span> <span class="line" id="L203"></span> <span class="line" id="L204"> <span class="tok-comment">// Scalar multiplication with a 4-bit window and the first 15 multiples.</span> </span> <span class="line" id="L205"> <span class="tok-kw">fn</span> <span class="tok-fn">pcMul16</span>(pc: <span class="tok-kw">const</span> [<span class="tok-number">16</span>]Edwards25519, s: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>, <span class="tok-kw">comptime</span> vartime: <span class="tok-type">bool</span>) IdentityElementError!Edwards25519 {</span> <span class="line" id="L206"> <span class="tok-kw">var</span> q = Edwards25519.identityElement;</span> <span class="line" id="L207"> <span class="tok-kw">var</span> pos: <span class="tok-type">usize</span> = <span class="tok-number">252</span>;</span> <span class="line" id="L208"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) : (pos -= <span class="tok-number">4</span>) {</span> <span class="line" id="L209"> <span class="tok-kw">const</span> slot = <span class="tok-builtin">@as</span>(<span class="tok-type">u4</span>, <span class="tok-builtin">@truncate</span>((s[pos >> <span class="tok-number">3</span>] >> <span class="tok-builtin">@as</span>(<span class="tok-type">u3</span>, <span class="tok-builtin">@truncate</span>(pos)))));</span> <span class="line" id="L210"> <span class="tok-kw">if</span> (vartime) {</span> <span class="line" id="L211"> <span class="tok-kw">if</span> (slot != <span class="tok-number">0</span>) {</span> <span class="line" id="L212"> q = q.add(pc[slot]);</span> <span class="line" id="L213"> }</span> <span class="line" id="L214"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L215"> q = q.add(pcSelect(<span class="tok-number">16</span>, pc, slot));</span> <span class="line" id="L216"> }</span> <span class="line" id="L217"> <span class="tok-kw">if</span> (pos == <span class="tok-number">0</span>) <span class="tok-kw">break</span>;</span> <span class="line" id="L218"> q = q.dbl().dbl().dbl().dbl();</span> <span class="line" id="L219"> }</span> <span class="line" id="L220"> <span class="tok-kw">try</span> q.rejectIdentity();</span> <span class="line" id="L221"> <span class="tok-kw">return</span> q;</span> <span class="line" id="L222"> }</span> <span class="line" id="L223"></span> <span class="line" id="L224"> <span class="tok-kw">fn</span> <span class="tok-fn">precompute</span>(p: Edwards25519, <span class="tok-kw">comptime</span> count: <span class="tok-type">usize</span>) [<span class="tok-number">1</span> + count]Edwards25519 {</span> <span class="line" id="L225"> <span class="tok-kw">var</span> pc: [<span class="tok-number">1</span> + count]Edwards25519 = <span class="tok-null">undefined</span>;</span> <span class="line" id="L226"> pc[<span class="tok-number">0</span>] = Edwards25519.identityElement;</span> <span class="line" id="L227"> pc[<span class="tok-number">1</span>] = p;</span> <span class="line" id="L228"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">2</span>;</span> <span class="line" id="L229"> <span class="tok-kw">while</span> (i <= count) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L230"> pc[i] = <span class="tok-kw">if</span> (i % <span class="tok-number">2</span> == <span class="tok-number">0</span>) pc[i / <span class="tok-number">2</span>].dbl() <span class="tok-kw">else</span> pc[i - <span class="tok-number">1</span>].add(p);</span> <span class="line" id="L231"> }</span> <span class="line" id="L232"> <span class="tok-kw">return</span> pc;</span> <span class="line" id="L233"> }</span> <span class="line" id="L234"></span> <span class="line" id="L235"> <span class="tok-kw">const</span> basePointPc = pc: {</span> <span class="line" id="L236"> <span class="tok-builtin">@setEvalBranchQuota</span>(<span class="tok-number">10000</span>);</span> <span class="line" id="L237"> <span class="tok-kw">break</span> :pc precompute(Edwards25519.basePoint, <span class="tok-number">15</span>);</span> <span class="line" id="L238"> };</span> <span class="line" id="L239"></span> <span class="line" id="L240"> <span class="tok-comment">/// Multiply an Edwards25519 point by a scalar without clamping it.</span></span> <span class="line" id="L241"> <span class="tok-comment">/// Return error.WeakPublicKey if the base generates a small-order group,</span></span> <span class="line" id="L242"> <span class="tok-comment">/// and error.IdentityElement if the result is the identity element.</span></span> <span class="line" id="L243"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">mul</span>(p: Edwards25519, s: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>) (IdentityElementError \|\| WeakPublicKeyError)!Edwards25519 {</span> <span class="line" id="L244"> <span class="tok-kw">const</span> pc = <span class="tok-kw">if</span> (p.is_base) basePointPc <span class="tok-kw">else</span> pc: {</span> <span class="line" id="L245"> <span class="tok-kw">const</span> xpc = precompute(p, <span class="tok-number">15</span>);</span> <span class="line" id="L246"> xpc[<span class="tok-number">4</span>].rejectIdentity() <span class="tok-kw">catch</span> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.WeakPublicKey;</span> <span class="line" id="L247"> <span class="tok-kw">break</span> :pc xpc;</span> <span class="line" id="L248"> };</span> <span class="line" id="L249"> <span class="tok-kw">return</span> pcMul16(&pc, s, <span class="tok-null">false</span>);</span> <span class="line" id="L250"> }</span> <span class="line" id="L251"></span> <span class="line" id="L252"> <span class="tok-comment">/// Multiply an Edwards25519 point by a PUBLIC* scalar IN VARIABLE TIME</span></span> <span class="line" id="L253"> <span class="tok-comment">/// This can be used for signature verification.</span></span> <span class="line" id="L254"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">mulPublic</span>(p: Edwards25519, s: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>) (IdentityElementError \|\| WeakPublicKeyError)!Edwards25519 {</span> <span class="line" id="L255"> <span class="tok-kw">if</span> (p.is_base) {</span> <span class="line" id="L256"> <span class="tok-kw">return</span> pcMul16(&basePointPc, s, <span class="tok-null">true</span>);</span> <span class="line" id="L257"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L258"> <span class="tok-kw">const</span> pc = precompute(p, <span class="tok-number">8</span>);</span> <span class="line" id="L259"> pc[<span class="tok-number">4</span>].rejectIdentity() <span class="tok-kw">catch</span> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.WeakPublicKey;</span> <span class="line" id="L260"> <span class="tok-kw">return</span> pcMul(&pc, s, <span class="tok-null">true</span>);</span> <span class="line" id="L261"> }</span> <span class="line" id="L262"> }</span> <span class="line" id="L263"></span> <span class="line" id="L264"> <span class="tok-comment">/// Double-base multiplication of public parameters - Compute (p1s1)+(p2s2) IN VARIABLE TIME</span></span> <span class="line" id="L265"> <span class="tok-comment">/// This can be used for signature verification.</span></span> <span class="line" id="L266"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">mulDoubleBasePublic</span>(p1: Edwards25519, s1: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>, p2: Edwards25519, s2: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>) (IdentityElementError \|\| WeakPublicKeyError)!Edwards25519 {</span> <span class="line" id="L267"> <span class="tok-kw">var</span> pc1_array: [<span class="tok-number">9</span>]Edwards25519 = <span class="tok-null">undefined</span>;</span> <span class="line" id="L268"> <span class="tok-kw">const</span> pc1 = <span class="tok-kw">if</span> (p1.is_base) basePointPc[<span class="tok-number">0</span>..<span class="tok-number">9</span>] <span class="tok-kw">else</span> pc: {</span> <span class="line" id="L269"> pc1_array = precompute(p1, <span class="tok-number">8</span>);</span> <span class="line" id="L270"> pc1_array[<span class="tok-number">4</span>].rejectIdentity() <span class="tok-kw">catch</span> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.WeakPublicKey;</span> <span class="line" id="L271"> <span class="tok-kw">break</span> :pc &pc1_array;</span> <span class="line" id="L272"> };</span> <span class="line" id="L273"> <span class="tok-kw">var</span> pc2_array: [<span class="tok-number">9</span>]Edwards25519 = <span class="tok-null">undefined</span>;</span> <span class="line" id="L274"> <span class="tok-kw">const</span> pc2 = <span class="tok-kw">if</span> (p2.is_base) basePointPc[<span class="tok-number">0</span>..<span class="tok-number">9</span>] <span class="tok-kw">else</span> pc: {</span> <span class="line" id="L275"> pc2_array = precompute(p2, <span class="tok-number">8</span>);</span> <span class="line" id="L276"> pc2_array[<span class="tok-number">4</span>].rejectIdentity() <span class="tok-kw">catch</span> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.WeakPublicKey;</span> <span class="line" id="L277"> <span class="tok-kw">break</span> :pc &pc2_array;</span> <span class="line" id="L278"> };</span> <span class="line" id="L279"> <span class="tok-kw">const</span> e1 = slide(s1);</span> <span class="line" id="L280"> <span class="tok-kw">const</span> e2 = slide(s2);</span> <span class="line" id="L281"> <span class="tok-kw">var</span> q = Edwards25519.identityElement;</span> <span class="line" id="L282"> <span class="tok-kw">var</span> pos: <span class="tok-type">usize</span> = <span class="tok-number">2</span> * <span class="tok-number">32</span> - <span class="tok-number">1</span>;</span> <span class="line" id="L283"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) : (pos -= <span class="tok-number">1</span>) {</span> <span class="line" id="L284"> <span class="tok-kw">const</span> slot1 = e1[pos];</span> <span class="line" id="L285"> <span class="tok-kw">if</span> (slot1 > <span class="tok-number">0</span>) {</span> <span class="line" id="L286"> q = q.add(pc1[<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(slot1))]);</span> <span class="line" id="L287"> } <span class="tok-kw">else</span> <span class="tok-kw">if</span> (slot1 < <span class="tok-number">0</span>) {</span> <span class="line" id="L288"> q = q.sub(pc1[<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(-slot1))]);</span> <span class="line" id="L289"> }</span> <span class="line" id="L290"> <span class="tok-kw">const</span> slot2 = e2[pos];</span> <span class="line" id="L291"> <span class="tok-kw">if</span> (slot2 > <span class="tok-number">0</span>) {</span> <span class="line" id="L292"> q = q.add(pc2[<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(slot2))]);</span> <span class="line" id="L293"> } <span class="tok-kw">else</span> <span class="tok-kw">if</span> (slot2 < <span class="tok-number">0</span>) {</span> <span class="line" id="L294"> q = q.sub(pc2[<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(-slot2))]);</span> <span class="line" id="L295"> }</span> <span class="line" id="L296"> <span class="tok-kw">if</span> (pos == <span class="tok-number">0</span>) <span class="tok-kw">break</span>;</span> <span class="line" id="L297"> q = q.dbl().dbl().dbl().dbl();</span> <span class="line" id="L298"> }</span> <span class="line" id="L299"> <span class="tok-kw">try</span> q.rejectIdentity();</span> <span class="line" id="L300"> <span class="tok-kw">return</span> q;</span> <span class="line" id="L301"> }</span> <span class="line" id="L302"></span> <span class="line" id="L303"> <span class="tok-comment">/// Multiscalar multiplication IN VARIABLE TIME for public data</span></span> <span class="line" id="L304"> <span class="tok-comment">/// Computes ps0ss0 + ps1ss1 + ps2ss2... faster than doing many of these operations individually</span></span> <span class="line" id="L305"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">mulMulti</span>(<span class="tok-kw">comptime</span> count: <span class="tok-type">usize</span>, ps: [count]Edwards25519, ss: [count][<span class="tok-number">32</span>]<span class="tok-type">u8</span>) (IdentityElementError \|\| WeakPublicKeyError)!Edwards25519 {</span> <span class="line" id="L306"> <span class="tok-kw">var</span> pcs: [count][<span class="tok-number">9</span>]Edwards25519 = <span class="tok-null">undefined</span>;</span> <span class="line" id="L307"></span> <span class="line" id="L308"> <span class="tok-kw">var</span> bpc: [<span class="tok-number">9</span>]Edwards25519 = <span class="tok-null">undefined</span>;</span> <span class="line" id="L309"> <span class="tok-builtin">@memcpy</span>(&bpc, basePointPc[<span class="tok-number">0</span>..bpc.len]);</span> <span class="line" id="L310"></span> <span class="line" id="L311"> <span class="tok-kw">for</span> (ps, <span class="tok-number">0</span>..) \|p, i\| {</span> <span class="line" id="L312"> <span class="tok-kw">if</span> (p.is_base) {</span> <span class="line" id="L313"> pcs[i] = bpc;</span> <span class="line" id="L314"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L315"> pcs[i] = precompute(p, <span class="tok-number">8</span>);</span> <span class="line" id="L316"> pcs[i][<span class="tok-number">4</span>].rejectIdentity() <span class="tok-kw">catch</span> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.WeakPublicKey;</span> <span class="line" id="L317"> }</span> <span class="line" id="L318"> }</span> <span class="line" id="L319"> <span class="tok-kw">var</span> es: [count][<span class="tok-number">2</span> <span class="tok-number">32</span>]<span class="tok-type">i8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L320"> <span class="tok-kw">for</span> (ss, <span class="tok-number">0</span>..) \|s, i\| {</span> <span class="line" id="L321"> es[i] = slide(s);</span> <span class="line" id="L322"> }</span> <span class="line" id="L323"> <span class="tok-kw">var</span> q = Edwards25519.identityElement;</span> <span class="line" id="L324"> <span class="tok-kw">var</span> pos: <span class="tok-type">usize</span> = <span class="tok-number">2</span> * <span class="tok-number">32</span> - <span class="tok-number">1</span>;</span> <span class="line" id="L325"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) : (pos -= <span class="tok-number">1</span>) {</span> <span class="line" id="L326"> <span class="tok-kw">for</span> (es, <span class="tok-number">0</span>..) \|e, i\| {</span> <span class="line" id="L327"> <span class="tok-kw">const</span> slot = e[pos];</span> <span class="line" id="L328"> <span class="tok-kw">if</span> (slot > <span class="tok-number">0</span>) {</span> <span class="line" id="L329"> q = q.add(pcs[i][<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(slot))]);</span> <span class="line" id="L330"> } <span class="tok-kw">else</span> <span class="tok-kw">if</span> (slot < <span class="tok-number">0</span>) {</span> <span class="line" id="L331"> q = q.sub(pcs[i][<span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(-slot))]);</span> <span class="line" id="L332"> }</span> <span class="line" id="L333"> }</span> <span class="line" id="L334"> <span class="tok-kw">if</span> (pos == <span class="tok-number">0</span>) <span class="tok-kw">break</span>;</span> <span class="line" id="L335"> q = q.dbl().dbl().dbl().dbl();</span> <span class="line" id="L336"> }</span> <span class="line" id="L337"> <span class="tok-kw">try</span> q.rejectIdentity();</span> <span class="line" id="L338"> <span class="tok-kw">return</span> q;</span> <span class="line" id="L339"> }</span> <span class="line" id="L340"></span> <span class="line" id="L341"> <span class="tok-comment">/// Multiply an Edwards25519 point by a scalar after "clamping" it.</span></span> <span class="line" id="L342"> <span class="tok-comment">/// Clamping forces the scalar to be a multiple of the cofactor in</span></span> <span class="line" id="L343"> <span class="tok-comment">/// order to prevent small subgroups attacks.</span></span> <span class="line" id="L344"> <span class="tok-comment">/// This is strongly recommended for DH operations.</span></span> <span class="line" id="L345"> <span class="tok-comment">/// Return error.WeakPublicKey if the resulting point is</span></span> <span class="line" id="L346"> <span class="tok-comment">/// the identity element.</span></span> <span class="line" id="L347"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">clampedMul</span>(p: Edwards25519, s: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>) (IdentityElementError \|\| WeakPublicKeyError)!Edwards25519 {</span> <span class="line" id="L348"> <span class="tok-kw">var</span> t: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = s;</span> <span class="line" id="L349"> scalar.clamp(&t);</span> <span class="line" id="L350"> <span class="tok-kw">return</span> mul(p, t);</span> <span class="line" id="L351"> }</span> <span class="line" id="L352"></span> <span class="line" id="L353"> <span class="tok-comment">// montgomery -- recover y = sqrt(x^3 + Ax^2 + x)</span> </span> <span class="line" id="L354"> <span class="tok-kw">fn</span> <span class="tok-fn">xmontToYmont</span>(x: Fe) NotSquareError!Fe {</span> <span class="line" id="L355"> <span class="tok-kw">var</span> x2 = x.sq();</span> <span class="line" id="L356"> <span class="tok-kw">const</span> x3 = x.mul(x2);</span> <span class="line" id="L357"> x2 = x2.mul32(Fe.edwards25519a_32);</span> <span class="line" id="L358"> <span class="tok-kw">return</span> x.add(x2).add(x3).sqrt();</span> <span class="line" id="L359"> }</span> <span class="line" id="L360"></span> <span class="line" id="L361"> <span class="tok-comment">// montgomery affine coordinates to edwards extended coordinates</span> </span> <span class="line" id="L362"> <span class="tok-kw">fn</span> <span class="tok-fn">montToEd</span>(x: Fe, y: Fe) Edwards25519 {</span> <span class="line" id="L363"> <span class="tok-kw">const</span> x_plus_one = x.add(Fe.one);</span> <span class="line" id="L364"> <span class="tok-kw">const</span> x_minus_one = x.sub(Fe.one);</span> <span class="line" id="L365"> <span class="tok-kw">const</span> x_plus_one_y_inv = x_plus_one.mul(y).invert(); <span class="tok-comment">// 1/((x+1)y)</span> </span> <span class="line" id="L366"></span> <span class="line" id="L367"> <span class="tok-comment">// xed = sqrt(-A-2)x/y</span> </span> <span class="line" id="L368"> <span class="tok-kw">const</span> xed = x.mul(Fe.edwards25519sqrtam2).mul(x_plus_one_y_inv).mul(x_plus_one);</span> <span class="line" id="L369"></span> <span class="line" id="L370"> <span class="tok-comment">// yed = (x-1)/(x+1) or 1 if the denominator is 0</span> </span> <span class="line" id="L371"> <span class="tok-kw">var</span> yed = x_plus_one_y_inv.mul(y).mul(x_minus_one);</span> <span class="line" id="L372"> yed.cMov(Fe.one, <span class="tok-builtin">@intFromBool</span>(x_plus_one_y_inv.isZero()));</span> <span class="line" id="L373"></span> <span class="line" id="L374"> <span class="tok-kw">return</span> Edwards25519{</span> <span class="line" id="L375"> .x = xed,</span> <span class="line" id="L376"> .y = yed,</span> <span class="line" id="L377"> .z = Fe.one,</span> <span class="line" id="L378"> .t = xed.mul(yed),</span> <span class="line" id="L379"> };</span> <span class="line" id="L380"> }</span> <span class="line" id="L381"></span> <span class="line" id="L382"> <span class="tok-comment">/// Elligator2 map - Returns Montgomery affine coordinates</span></span> <span class="line" id="L383"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">elligator2</span>(r: Fe) <span class="tok-kw">struct</span> { x: Fe, y: Fe, not_square: <span class="tok-type">bool</span> } {</span> <span class="line" id="L384"> <span class="tok-kw">const</span> rr2 = r.sq2().add(Fe.one).invert();</span> <span class="line" id="L385"> <span class="tok-kw">var</span> x = rr2.mul32(Fe.edwards25519a_32).neg(); <span class="tok-comment">// x=x1</span> </span> <span class="line" id="L386"> <span class="tok-kw">var</span> x2 = x.sq();</span> <span class="line" id="L387"> <span class="tok-kw">const</span> x3 = x2.mul(x);</span> <span class="line" id="L388"> x2 = x2.mul32(Fe.edwards25519a_32); <span class="tok-comment">// x2 = Ax1^2</span> </span> <span class="line" id="L389"> <span class="tok-kw">const</span> gx1 = x3.add(x).add(x2); <span class="tok-comment">// gx1 = x1^3 + Ax1^2 + x1</span> </span> <span class="line" id="L390"> <span class="tok-kw">const</span> not_square = !gx1.isSquare();</span> <span class="line" id="L391"></span> <span class="line" id="L392"> <span class="tok-comment">// gx1 not a square => x = -x1-A</span> </span> <span class="line" id="L393"> x.cMov(x.neg(), <span class="tok-builtin">@intFromBool</span>(not_square));</span> <span class="line" id="L394"> x2 = Fe.zero;</span> <span class="line" id="L395"> x2.cMov(Fe.edwards25519a, <span class="tok-builtin">@intFromBool</span>(not_square));</span> <span class="line" id="L396"> x = x.sub(x2);</span> <span class="line" id="L397"></span> <span class="line" id="L398"> <span class="tok-comment">// We have y = sqrt(gx1) or sqrt(gx2) with gx2 = gx1(A+x1)/(-x1)</span> </span> <span class="line" id="L399"> <span class="tok-comment">// but it is about as fast to just recompute y from the curve equation.</span> </span> <span class="line" id="L400"> <span class="tok-kw">const</span> y = xmontToYmont(x) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L401"> <span class="tok-kw">return</span> .{ .x = x, .y = y, .not_square = not_square };</span> <span class="line" id="L402"> }</span> <span class="line" id="L403"></span> <span class="line" id="L404"> <span class="tok-comment">/// Map a 64-bit hash into an Edwards25519 point</span></span> <span class="line" id="L405"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromHash</span>(h: [<span class="tok-number">64</span>]<span class="tok-type">u8</span>) Edwards25519 {</span> <span class="line" id="L406"> <span class="tok-kw">const</span> fe_f = Fe.fromBytes64(h);</span> <span class="line" id="L407"> <span class="tok-kw">var</span> elr = elligator2(fe_f);</span> <span class="line" id="L408"></span> <span class="line" id="L409"> <span class="tok-kw">const</span> y_sign = !elr.not_square;</span> <span class="line" id="L410"> <span class="tok-kw">const</span> y_neg = elr.y.neg();</span> <span class="line" id="L411"> elr.y.cMov(y_neg, <span class="tok-builtin">@intFromBool</span>(elr.y.isNegative()) ^ <span class="tok-builtin">@intFromBool</span>(y_sign));</span> <span class="line" id="L412"> <span class="tok-kw">return</span> montToEd(elr.x, elr.y).clearCofactor();</span> <span class="line" id="L413"> }</span> <span class="line" id="L414"></span> <span class="line" id="L415"> <span class="tok-kw">fn</span> <span class="tok-fn">stringToPoints</span>(<span class="tok-kw">comptime</span> n: <span class="tok-type">usize</span>, ctx: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, s: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) [n]Edwards25519 {</span> <span class="line" id="L416"> debug.assert(n <= <span class="tok-number">2</span>);</span> <span class="line" id="L417"> <span class="tok-kw">const</span> H = crypto.hash.sha2.Sha512;</span> <span class="line" id="L418"> <span class="tok-kw">const</span> h_l: <span class="tok-type">usize</span> = <span class="tok-number">48</span>;</span> <span class="line" id="L419"> <span class="tok-kw">var</span> xctx = ctx;</span> <span class="line" id="L420"> <span class="tok-kw">var</span> hctx: [H.digest_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L421"> <span class="tok-kw">if</span> (ctx.len > <span class="tok-number">0xff</span>) {</span> <span class="line" id="L422"> <span class="tok-kw">var</span> st = H.init(.{});</span> <span class="line" id="L423"> st.update(<span class="tok-str">"H2C-OVERSIZE-DST-"</span>);</span> <span class="line" id="L424"> st.update(ctx);</span> <span class="line" id="L425"> st.final(&hctx);</span> <span class="line" id="L426"> xctx = hctx[<span class="tok-number">0</span>..];</span> <span class="line" id="L427"> }</span> <span class="line" id="L428"> <span class="tok-kw">const</span> empty_block = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} ** H.block_length;</span> <span class="line" id="L429"> <span class="tok-kw">var</span> t = [<span class="tok-number">3</span>]<span class="tok-type">u8</span>{ <span class="tok-number">0</span>, n * h_l, <span class="tok-number">0</span> };</span> <span class="line" id="L430"> <span class="tok-kw">var</span> xctx_len_u8 = [<span class="tok-number">1</span>]<span class="tok-type">u8</span>{<span class="tok-builtin">@as</span>(<span class="tok-type">u8</span>, <span class="tok-builtin">@intCast</span>(xctx.len))};</span> <span class="line" id="L431"> <span class="tok-kw">var</span> st = H.init(.{});</span> <span class="line" id="L432"> st.update(empty_block[<span class="tok-number">0</span>..]);</span> <span class="line" id="L433"> st.update(s);</span> <span class="line" id="L434"> st.update(t[<span class="tok-number">0</span>..]);</span> <span class="line" id="L435"> st.update(xctx);</span> <span class="line" id="L436"> st.update(xctx_len_u8[<span class="tok-number">0</span>..]);</span> <span class="line" id="L437"> <span class="tok-kw">var</span> u_0: [H.digest_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L438"> st.final(&u_0);</span> <span class="line" id="L439"> <span class="tok-kw">var</span> u: [n * H.digest_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L440"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L441"> <span class="tok-kw">while</span> (i < n * H.digest_length) : (i += H.digest_length) {</span> <span class="line" id="L442"> u[i..][<span class="tok-number">0</span>..H.digest_length].* = u_0;</span> <span class="line" id="L443"> <span class="tok-kw">var</span> j: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L444"> <span class="tok-kw">while</span> (i > <span class="tok-number">0</span> <span class="tok-kw">and</span> j < H.digest_length) : (j += <span class="tok-number">1</span>) {</span> <span class="line" id="L445"> u[i + j] ^= u[i + j - H.digest_length];</span> <span class="line" id="L446"> }</span> <span class="line" id="L447"> t[<span class="tok-number">2</span>] += <span class="tok-number">1</span>;</span> <span class="line" id="L448"> st = H.init(.{});</span> <span class="line" id="L449"> st.update(u[i..][<span class="tok-number">0</span>..H.digest_length]);</span> <span class="line" id="L450"> st.update(t[<span class="tok-number">2</span>..<span class="tok-number">3</span>]);</span> <span class="line" id="L451"> st.update(xctx);</span> <span class="line" id="L452"> st.update(xctx_len_u8[<span class="tok-number">0</span>..]);</span> <span class="line" id="L453"> st.final(u[i..][<span class="tok-number">0</span>..H.digest_length]);</span> <span class="line" id="L454"> }</span> <span class="line" id="L455"> <span class="tok-kw">var</span> px: [n]Edwards25519 = <span class="tok-null">undefined</span>;</span> <span class="line" id="L456"> i = <span class="tok-number">0</span>;</span> <span class="line" id="L457"> <span class="tok-kw">while</span> (i < n) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L458"> <span class="tok-builtin">@memset</span>(u_0[<span class="tok-number">0</span> .. H.digest_length - h_l], <span class="tok-number">0</span>);</span> <span class="line" id="L459"> u_0[H.digest_length - h_l ..][<span class="tok-number">0</span>..h_l].* = u[i * h_l ..][<span class="tok-number">0</span>..h_l].;</span> <span class="line" id="L460"> px[i] = fromHash(u_0);</span> <span class="line" id="L461"> }</span> <span class="line" id="L462"> <span class="tok-kw">return</span> px;</span> <span class="line" id="L463"> }</span> <span class="line" id="L464"></span> <span class="line" id="L465"> <span class="tok-comment">/// Hash a context `ctx` and a string `s` into an Edwards25519 point</span></span> <span class="line" id="L466"> <span class="tok-comment">///</span></span> <span class="line" id="L467"> <span class="tok-comment">/// This function implements the edwards25519_XMD:SHA-512_ELL2_RO_ and edwards25519_XMD:SHA-512_ELL2_NU_</span></span> <span class="line" id="L468"> <span class="tok-comment">/// methods from the "Hashing to Elliptic Curves" standard document.</span></span> <span class="line" id="L469"> <span class="tok-comment">///</span></span> <span class="line" id="L470"> <span class="tok-comment">/// Although not strictly required by the standard, it is recommended to avoid NUL characters in</span></span> <span class="line" id="L471"> <span class="tok-comment">/// the context in order to be compatible with other implementations.</span></span> <span class="line" id="L472"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromString</span>(<span class="tok-kw">comptime</span> random_oracle: <span class="tok-type">bool</span>, ctx: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, s: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) Edwards25519 {</span> <span class="line" id="L473"> <span class="tok-kw">if</span> (random_oracle) {</span> <span class="line" id="L474"> <span class="tok-kw">const</span> px = stringToPoints(<span class="tok-number">2</span>, ctx, s);</span> <span class="line" id="L475"> <span class="tok-kw">return</span> px[<span class="tok-number">0</span>].add(px[<span class="tok-number">1</span>]);</span> <span class="line" id="L476"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L477"> <span class="tok-kw">return</span> stringToPoints(<span class="tok-number">1</span>, ctx, s)[<span class="tok-number">0</span>];</span> <span class="line" id="L478"> }</span> <span class="line" id="L479"> }</span> <span class="line" id="L480"></span> <span class="line" id="L481"> <span class="tok-comment">/// Map a 32 bit uniform bit string into an edwards25519 point</span></span> <span class="line" id="L482"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromUniform</span>(r: [<span class="tok-number">32</span>]<span class="tok-type">u8</span>) Edwards25519 {</span> <span class="line" id="L483"> <span class="tok-kw">var</span> s = r;</span> <span class="line" id="L484"> <span class="tok-kw">const</span> x_sign = s[<span class="tok-number">31</span>] >> <span class="tok-number">7</span>;</span> <span class="line" id="L485"> s[<span class="tok-number">31</span>] &= <span class="tok-number">0x7f</span>;</span> <span class="line" id="L486"> <span class="tok-kw">const</span> elr = elligator2(Fe.fromBytes(s));</span> <span class="line" id="L487"> <span class="tok-kw">var</span> p = montToEd(elr.x, elr.y);</span> <span class="line" id="L488"> <span class="tok-kw">const</span> p_neg = p.neg();</span> <span class="line" id="L489"> p.cMov(p_neg, <span class="tok-builtin">@intFromBool</span>(p.x.isNegative()) ^ x_sign);</span> <span class="line" id="L490"> <span class="tok-kw">return</span> p.clearCofactor();</span> <span class="line" id="L491"> }</span> <span class="line" id="L492">};</span> <span class="line" id="L493"></span> <span class="line" id="L494"><span class="tok-kw">const</span> htest = <span class="tok-builtin">@import</span>(<span class="tok-str">"../test.zig"</span>);</span> <span class="line" id="L495"></span> <span class="line" id="L496"><span class="tok-kw">test</span> <span class="tok-str">"edwards25519 packing/unpacking"</span> {</span> <span class="line" id="L497"> <span class="tok-kw">const</span> s = [_]<span class="tok-type">u8</span>{<span class="tok-number">170</span>} ++ [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} * <span class="tok-number">31</span>;</span> <span class="line" id="L498"> <span class="tok-kw">var</span> b = Edwards25519.basePoint;</span> <span class="line" id="L499"> <span class="tok-kw">const</span> pk = <span class="tok-kw">try</span> b.mul(s);</span> <span class="line" id="L500"> <span class="tok-kw">var</span> buf: [<span class="tok-number">128</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L501"> <span class="tok-kw">try</span> std.testing.expectEqualStrings(<span class="tok-kw">try</span> std.fmt.bufPrint(&buf, <span class="tok-str">"{s}"</span>, .{std.fmt.fmtSliceHexUpper(&pk.toBytes())}), <span class="tok-str">"074BC7E0FCBD587FDBC0969444245FADC562809C8F6E97E949AF62484B5B81A6"</span>);</span> <span class="line" id="L502"></span> <span class="line" id="L503"> <span class="tok-kw">const</span> small_order_ss: [<span class="tok-number">7</span>][<span class="tok-number">32</span>]<span class="tok-type">u8</span> = .{</span> <span class="line" id="L504"> .{</span> <span class="line" id="L505"> <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-comment">// 0 (order 4)</span> </span> <span class="line" id="L506"> },</span> <span class="line" id="L507"> .{</span> <span class="line" id="L508"> <span class="tok-number">0x01</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-comment">// 1 (order 1)</span> </span> <span class="line" id="L509"> },</span> <span class="line" id="L510"> .{</span> <span class="line" id="L511"> <span class="tok-number">0x26</span>, <span class="tok-number">0xe8</span>, <span class="tok-number">0x95</span>, <span class="tok-number">0x8f</span>, <span class="tok-number">0xc2</span>, <span class="tok-number">0xb2</span>, <span class="tok-number">0x27</span>, <span class="tok-number">0xb0</span>, <span class="tok-number">0x45</span>, <span class="tok-number">0xc3</span>, <span class="tok-number">0xf4</span>, <span class="tok-number">0x89</span>, <span class="tok-number">0xf2</span>, <span class="tok-number">0xef</span>, <span class="tok-number">0x98</span>, <span class="tok-number">0xf0</span>, <span class="tok-number">0xd5</span>, <span class="tok-number">0xdf</span>, <span class="tok-number">0xac</span>, <span class="tok-number">0x05</span>, <span class="tok-number">0xd3</span>, <span class="tok-number">0xc6</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0xb1</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x02</span>, <span class="tok-number">0x88</span>, <span class="tok-number">0x6d</span>, <span class="tok-number">0x53</span>, <span class="tok-number">0xfc</span>, <span class="tok-number">0x05</span>, <span class="tok-comment">// 270738550114484064931822528722565878893680426757531351946374360975030340202(order 8)</span> </span> <span class="line" id="L512"> },</span> <span class="line" id="L513"> .{</span> <span class="line" id="L514"> <span class="tok-number">0xc7</span>, <span class="tok-number">0x17</span>, <span class="tok-number">0x6a</span>, <span class="tok-number">0x70</span>, <span class="tok-number">0x3d</span>, <span class="tok-number">0x4d</span>, <span class="tok-number">0xd8</span>, <span class="tok-number">0x4f</span>, <span class="tok-number">0xba</span>, <span class="tok-number">0x3c</span>, <span class="tok-number">0x0b</span>, <span class="tok-number">0x76</span>, <span class="tok-number">0x0d</span>, <span class="tok-number">0x10</span>, <span class="tok-number">0x67</span>, <span class="tok-number">0x0f</span>, <span class="tok-number">0x2a</span>, <span class="tok-number">0x20</span>, <span class="tok-number">0x53</span>, <span class="tok-number">0xfa</span>, <span class="tok-number">0x2c</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0xcc</span>, <span class="tok-number">0xc6</span>, <span class="tok-number">0x4e</span>, <span class="tok-number">0xc7</span>, <span class="tok-number">0xfd</span>, <span class="tok-number">0x77</span>, <span class="tok-number">0x92</span>, <span class="tok-number">0xac</span>, <span class="tok-number">0x03</span>, <span class="tok-number">0x7a</span>, <span class="tok-comment">// 55188659117513257062467267217118295137698188065244968500265048394206261417927 (order 8)</span> </span> <span class="line" id="L515"> },</span> <span class="line" id="L516"> .{</span> <span class="line" id="L517"> <span class="tok-number">0xec</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0x7f</span>, <span class="tok-comment">// p-1 (order 2)</span> </span> <span class="line" id="L518"> },</span> <span class="line" id="L519"> .{</span> <span class="line" id="L520"> <span class="tok-number">0xed</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0x7f</span>, <span class="tok-comment">// p (=0, order 4)</span> </span> <span class="line" id="L521"> },</span> <span class="line" id="L522"> .{</span> <span class="line" id="L523"> <span class="tok-number">0xee</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0xff</span>, <span class="tok-number">0x7f</span>, <span class="tok-comment">// p+1 (=1, order 1)</span> </span> <span class="line" id="L524"> },</span> <span class="line" id="L525"> };</span> <span class="line" id="L526"> <span class="tok-kw">for</span> (small_order_ss) \|small_order_s\| {</span> <span class="line" id="L527"> <span class="tok-kw">const</span> small_p = <span class="tok-kw">try</span> Edwards25519.fromBytes(small_order_s);</span> <span class="line" id="L528"> <span class="tok-kw">try</span> std.testing.expectError(<span class="tok-kw">error</span>.WeakPublicKey, small_p.mul(s));</span> <span class="line" id="L529"> }</span> <span class="line" id="L530">}</span> <span class="line" id="L531"></span> <span class="line" id="L532"><span class="tok-kw">test</span> <span class="tok-str">"edwards25519 point addition/subtraction"</span> {</span> <span class="line" id="L533"> <span class="tok-kw">var</span> s1: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L534"> <span class="tok-kw">var</span> s2: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L535"> crypto.random.bytes(&s1);</span> <span class="line" id="L536"> crypto.random.bytes(&s2);</span> <span class="line" id="L537"> <span class="tok-kw">const</span> p = <span class="tok-kw">try</span> Edwards25519.basePoint.clampedMul(s1);</span> <span class="line" id="L538"> <span class="tok-kw">const</span> q = <span class="tok-kw">try</span> Edwards25519.basePoint.clampedMul(s2);</span> <span class="line" id="L539"> <span class="tok-kw">const</span> r = p.add(q).add(q).sub(q).sub(q);</span> <span class="line" id="L540"> <span class="tok-kw">try</span> r.rejectIdentity();</span> <span class="line" id="L541"> <span class="tok-kw">try</span> std.testing.expectError(<span class="tok-kw">error</span>.IdentityElement, r.sub(p).rejectIdentity());</span> <span class="line" id="L542"> <span class="tok-kw">try</span> std.testing.expectError(<span class="tok-kw">error</span>.IdentityElement, p.sub(p).rejectIdentity());</span> <span class="line" id="L543"> <span class="tok-kw">try</span> std.testing.expectError(<span class="tok-kw">error</span>.IdentityElement, p.sub(q).add(q).sub(p).rejectIdentity());</span> <span class="line" id="L544">}</span> <span class="line" id="L545"></span> <span class="line" id="L546"><span class="tok-kw">test</span> <span class="tok-str">"edwards25519 uniform-to-point"</span> {</span> <span class="line" id="L547"> <span class="tok-kw">var</span> r = [<span class="tok-number">32</span>]<span class="tok-type">u8</span>{ <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">2</span>, <span class="tok-number">3</span>, <span class="tok-number">4</span>, <span class="tok-number">5</span>, <span class="tok-number">6</span>, <span class="tok-number">7</span>, <span class="tok-number">8</span>, <span class="tok-number">9</span>, <span class="tok-number">10</span>, <span class="tok-number">11</span>, <span class="tok-number">12</span>, <span class="tok-number">13</span>, <span class="tok-number">14</span>, <span class="tok-number">15</span>, <span class="tok-number">16</span>, <span class="tok-number">17</span>, <span class="tok-number">18</span>, <span class="tok-number">19</span>, <span class="tok-number">20</span>, <span class="tok-number">21</span>, <span class="tok-number">22</span>, <span class="tok-number">23</span>, <span class="tok-number">24</span>, <span class="tok-number">25</span>, <span class="tok-number">26</span>, <span class="tok-number">27</span>, <span class="tok-number">28</span>, <span class="tok-number">29</span>, <span class="tok-number">30</span>, <span class="tok-number">31</span> };</span> <span class="line" id="L548"> <span class="tok-kw">var</span> p = Edwards25519.fromUniform(r);</span> <span class="line" id="L549"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"0691eee3cf70a0056df6bfa03120635636581b5c4ea571dfc680f78c7e0b4137"</span>, p.toBytes()[<span class="tok-number">0</span>..]);</span> <span class="line" id="L550"></span> <span class="line" id="L551"> r[<span class="tok-number">31</span>] = <span class="tok-number">0xff</span>;</span> <span class="line" id="L552"> p = Edwards25519.fromUniform(r);</span> <span class="line" id="L553"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"f70718e68ef42d90ca1d936bb2d7e159be6c01d8095d39bd70487c82fe5c973a"</span>, p.toBytes()[<span class="tok-number">0</span>..]);</span> <span class="line" id="L554">}</span> <span class="line" id="L555"></span> <span class="line" id="L556"><span class="tok-comment">// Test vectors from draft-irtf-cfrg-hash-to-curve-12</span> </span> <span class="line" id="L557"><span class="tok-kw">test</span> <span class="tok-str">"edwards25519 hash-to-curve operation"</span> {</span> <span class="line" id="L558"> <span class="tok-kw">var</span> p = Edwards25519.fromString(<span class="tok-null">true</span>, <span class="tok-str">"QUUX-V01-CS02-with-edwards25519_XMD:SHA-512_ELL2_RO_"</span>, <span class="tok-str">"abc"</span>);</span> <span class="line" id="L559"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"31558a26887f23fb8218f143e69d5f0af2e7831130bd5b432ef23883b895839a"</span>, p.toBytes()[<span class="tok-number">0</span>..]);</span> <span class="line" id="L560"></span> <span class="line" id="L561"> p = Edwards25519.fromString(<span class="tok-null">false</span>, <span class="tok-str">"QUUX-V01-CS02-with-edwards25519_XMD:SHA-512_ELL2_NU_"</span>, <span class="tok-str">"abc"</span>);</span> <span class="line" id="L562"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"42fa27c8f5a1ae0aa38bb59d5938e5145622ba5dedd11d11736fa2f9502d7367"</span>, p.toBytes()[<span class="tok-number">0</span>..]);</span> <span class="line" id="L563">}</span> <span class="line" id="L564"></span> <span class="line" id="L565"><span class="tok-kw">test</span> <span class="tok-str">"edwards25519 implicit reduction of invalid scalars"</span> {</span> <span class="line" id="L566"> <span class="tok-kw">const</span> s = [_]<span class="tok-type">u8</span>{<span class="tok-number">0</span>} ** <span class="tok-number">31</span> ++ [_]<span class="tok-type">u8</span>{<span class="tok-number">255</span>};</span> <span class="line" id="L567"> <span class="tok-kw">const</span> p1 = <span class="tok-kw">try</span> Edwards25519.basePoint.mulPublic(s);</span> <span class="line" id="L568"> <span class="tok-kw">const</span> p2 = <span class="tok-kw">try</span> Edwards25519.basePoint.mul(s);</span> <span class="line" id="L569"> <span class="tok-kw">const</span> p3 = <span class="tok-kw">try</span> p1.mulPublic(s);</span> <span class="line" id="L570"> <span class="tok-kw">const</span> p4 = <span class="tok-kw">try</span> p1.mul(s);</span> <span class="line" id="L571"></span> <span class="line" id="L572"> <span class="tok-kw">try</span> std.testing.expectEqualSlices(<span class="tok-type">u8</span>, p1.toBytes()[<span class="tok-number">0</span>..], p2.toBytes()[<span class="tok-number">0</span>..]);</span> <span class="line" id="L573"> <span class="tok-kw">try</span> std.testing.expectEqualSlices(<span class="tok-type">u8</span>, p3.toBytes()[<span class="tok-number">0</span>..], p4.toBytes()[<span class="tok-number">0</span>..]);</span> <span class="line" id="L574"></span> <span class="line" id="L575"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"339f189ecc5fbebe9895345c72dc07bda6e615f8a40e768441b6f529cd6c671a"</span>, p1.toBytes()[<span class="tok-number">0</span>..]);</span> <span class="line" id="L576"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"a501e4c595a3686d8bee7058c7e6af7fd237f945c47546910e37e0e79b1bafb0"</span>, p3.toBytes()[<span class="tok-number">0</span>..]);</span> <span class="line" id="L577">}</span> <span class="line" id="L578"></span> </code></pre></body> </html>
repos/yazap/docs/src/std/crypto	repos/yazap/docs/src/std/crypto/25519/ed25519.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/25519/ed25519.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> builtin = <span class="tok-builtin">@import</span>(<span class="tok-str">"builtin"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L3"><span class="tok-kw">const</span> crypto = std.crypto;</span> <span class="line" id="L4"><span class="tok-kw">const</span> debug = std.debug;</span> <span class="line" id="L5"><span class="tok-kw">const</span> fmt = std.fmt;</span> <span class="line" id="L6"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L7"></span> <span class="line" id="L8"><span class="tok-kw">const</span> Sha512 = crypto.hash.sha2.Sha512;</span> <span class="line" id="L9"></span> <span class="line" id="L10"><span class="tok-kw">const</span> EncodingError = crypto.errors.EncodingError;</span> <span class="line" id="L11"><span class="tok-kw">const</span> IdentityElementError = crypto.errors.IdentityElementError;</span> <span class="line" id="L12"><span class="tok-kw">const</span> NonCanonicalError = crypto.errors.NonCanonicalError;</span> <span class="line" id="L13"><span class="tok-kw">const</span> SignatureVerificationError = crypto.errors.SignatureVerificationError;</span> <span class="line" id="L14"><span class="tok-kw">const</span> KeyMismatchError = crypto.errors.KeyMismatchError;</span> <span class="line" id="L15"><span class="tok-kw">const</span> WeakPublicKeyError = crypto.errors.WeakPublicKeyError;</span> <span class="line" id="L16"></span> <span class="line" id="L17"><span class="tok-comment">/// Ed25519 (EdDSA) signatures.</span></span> <span class="line" id="L18"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Ed25519 = <span class="tok-kw">struct</span> {</span> <span class="line" id="L19"> <span class="tok-comment">/// The underlying elliptic curve.</span></span> <span class="line" id="L20"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Curve = std.crypto.ecc.Edwards25519;</span> <span class="line" id="L21"></span> <span class="line" id="L22"> <span class="tok-comment">/// Length (in bytes) of optional random bytes, for non-deterministic signatures.</span></span> <span class="line" id="L23"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> noise_length = <span class="tok-number">32</span>;</span> <span class="line" id="L24"></span> <span class="line" id="L25"> <span class="tok-kw">const</span> CompressedScalar = Curve.scalar.CompressedScalar;</span> <span class="line" id="L26"> <span class="tok-kw">const</span> Scalar = Curve.scalar.Scalar;</span> <span class="line" id="L27"></span> <span class="line" id="L28"> <span class="tok-comment">/// An Ed25519 secret key.</span></span> <span class="line" id="L29"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> SecretKey = <span class="tok-kw">struct</span> {</span> <span class="line" id="L30"> <span class="tok-comment">/// Length (in bytes) of a raw secret key.</span></span> <span class="line" id="L31"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> encoded_length = <span class="tok-number">64</span>;</span> <span class="line" id="L32"></span> <span class="line" id="L33"> bytes: [encoded_length]<span class="tok-type">u8</span>,</span> <span class="line" id="L34"></span> <span class="line" id="L35"> <span class="tok-comment">/// Return the seed used to generate this secret key.</span></span> <span class="line" id="L36"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">seed</span>(self: SecretKey) [KeyPair.seed_length]<span class="tok-type">u8</span> {</span> <span class="line" id="L37"> <span class="tok-kw">return</span> self.bytes[<span class="tok-number">0</span>..KeyPair.seed_length].;</span> <span class="line" id="L38"> }</span> <span class="line" id="L39"></span> <span class="line" id="L40"> <span class="tok-comment">/// Return the raw public key bytes corresponding to this secret key.</span></span> <span class="line" id="L41"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">publicKeyBytes</span>(self: SecretKey) [PublicKey.encoded_length]<span class="tok-type">u8</span> {</span> <span class="line" id="L42"> <span class="tok-kw">return</span> self.bytes[KeyPair.seed_length..].;</span> <span class="line" id="L43"> }</span> <span class="line" id="L44"></span> <span class="line" id="L45"> <span class="tok-comment">/// Create a secret key from raw bytes.</span></span> <span class="line" id="L46"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromBytes</span>(bytes: [encoded_length]<span class="tok-type">u8</span>) !SecretKey {</span> <span class="line" id="L47"> <span class="tok-kw">return</span> SecretKey{ .bytes = bytes };</span> <span class="line" id="L48"> }</span> <span class="line" id="L49"></span> <span class="line" id="L50"> <span class="tok-comment">/// Return the secret key as raw bytes.</span></span> <span class="line" id="L51"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toBytes</span>(sk: SecretKey) [encoded_length]<span class="tok-type">u8</span> {</span> <span class="line" id="L52"> <span class="tok-kw">return</span> sk.bytes;</span> <span class="line" id="L53"> }</span> <span class="line" id="L54"></span> <span class="line" id="L55"> <span class="tok-comment">// Return the clamped secret scalar and prefix for this secret key</span> </span> <span class="line" id="L56"> <span class="tok-kw">fn</span> <span class="tok-fn">scalarAndPrefix</span>(self: SecretKey) <span class="tok-kw">struct</span> { scalar: CompressedScalar, prefix: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> } {</span> <span class="line" id="L57"> <span class="tok-kw">var</span> az: [Sha512.digest_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L58"> <span class="tok-kw">var</span> h = Sha512.init(.{});</span> <span class="line" id="L59"> h.update(&self.seed());</span> <span class="line" id="L60"> h.final(&az);</span> <span class="line" id="L61"></span> <span class="line" id="L62"> <span class="tok-kw">var</span> s = az[<span class="tok-number">0</span>..<span class="tok-number">32</span>].;</span> <span class="line" id="L63"> Curve.scalar.clamp(&s);</span> <span class="line" id="L64"></span> <span class="line" id="L65"> <span class="tok-kw">return</span> .{ .scalar = s, .prefix = az[<span class="tok-number">32</span>..]. };</span> <span class="line" id="L66"> }</span> <span class="line" id="L67"> };</span> <span class="line" id="L68"></span> <span class="line" id="L69"> <span class="tok-comment">/// A Signer is used to incrementally compute a signature.</span></span> <span class="line" id="L70"> <span class="tok-comment">/// It can be obtained from a `KeyPair`, using the `signer()` function.</span></span> <span class="line" id="L71"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Signer = <span class="tok-kw">struct</span> {</span> <span class="line" id="L72"> h: Sha512,</span> <span class="line" id="L73"> scalar: CompressedScalar,</span> <span class="line" id="L74"> nonce: CompressedScalar,</span> <span class="line" id="L75"> r_bytes: [Curve.encoded_length]<span class="tok-type">u8</span>,</span> <span class="line" id="L76"></span> <span class="line" id="L77"> <span class="tok-kw">fn</span> <span class="tok-fn">init</span>(scalar: CompressedScalar, nonce: CompressedScalar, public_key: PublicKey) (IdentityElementError \|\| KeyMismatchError \|\| NonCanonicalError \|\| WeakPublicKeyError)!Signer {</span> <span class="line" id="L78"> <span class="tok-kw">const</span> r = <span class="tok-kw">try</span> Curve.basePoint.mul(nonce);</span> <span class="line" id="L79"> <span class="tok-kw">const</span> r_bytes = r.toBytes();</span> <span class="line" id="L80"></span> <span class="line" id="L81"> <span class="tok-kw">var</span> t: [<span class="tok-number">64</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L82"> t[<span class="tok-number">0</span>..<span class="tok-number">32</span>].* = r_bytes;</span> <span class="line" id="L83"> t[<span class="tok-number">32</span>..].* = public_key.bytes;</span> <span class="line" id="L84"> <span class="tok-kw">var</span> h = Sha512.init(.{});</span> <span class="line" id="L85"> h.update(&t);</span> <span class="line" id="L86"></span> <span class="line" id="L87"> <span class="tok-kw">return</span> Signer{ .h = h, .scalar = scalar, .nonce = nonce, .r_bytes = r_bytes };</span> <span class="line" id="L88"> }</span> <span class="line" id="L89"></span> <span class="line" id="L90"> <span class="tok-comment">/// Add new data to the message being signed.</span></span> <span class="line" id="L91"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">update</span>(self: Signer, data: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L92"> self.h.update(data);</span> <span class="line" id="L93"> }</span> <span class="line" id="L94"></span> <span class="line" id="L95"> <span class="tok-comment">/// Compute a signature over the entire message.</span></span> <span class="line" id="L96"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">finalize</span>(self: Signer) Signature {</span> <span class="line" id="L97"> <span class="tok-kw">var</span> hram64: [Sha512.digest_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L98"> self.h.final(&hram64);</span> <span class="line" id="L99"> <span class="tok-kw">const</span> hram = Curve.scalar.reduce64(hram64);</span> <span class="line" id="L100"></span> <span class="line" id="L101"> <span class="tok-kw">const</span> s = Curve.scalar.mulAdd(hram, self.scalar, self.nonce);</span> <span class="line" id="L102"></span> <span class="line" id="L103"> <span class="tok-kw">return</span> Signature{ .r = self.r_bytes, .s = s };</span> <span class="line" id="L104"> }</span> <span class="line" id="L105"> };</span> <span class="line" id="L106"></span> <span class="line" id="L107"> <span class="tok-comment">/// An Ed25519 public key.</span></span> <span class="line" id="L108"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> PublicKey = <span class="tok-kw">struct</span> {</span> <span class="line" id="L109"> <span class="tok-comment">/// Length (in bytes) of a raw public key.</span></span> <span class="line" id="L110"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> encoded_length = <span class="tok-number">32</span>;</span> <span class="line" id="L111"></span> <span class="line" id="L112"> bytes: [encoded_length]<span class="tok-type">u8</span>,</span> <span class="line" id="L113"></span> <span class="line" id="L114"> <span class="tok-comment">/// Create a public key from raw bytes.</span></span> <span class="line" id="L115"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromBytes</span>(bytes: [encoded_length]<span class="tok-type">u8</span>) NonCanonicalError!PublicKey {</span> <span class="line" id="L116"> <span class="tok-kw">try</span> Curve.rejectNonCanonical(bytes);</span> <span class="line" id="L117"> <span class="tok-kw">return</span> PublicKey{ .bytes = bytes };</span> <span class="line" id="L118"> }</span> <span class="line" id="L119"></span> <span class="line" id="L120"> <span class="tok-comment">/// Convert a public key to raw bytes.</span></span> <span class="line" id="L121"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toBytes</span>(pk: PublicKey) [encoded_length]<span class="tok-type">u8</span> {</span> <span class="line" id="L122"> <span class="tok-kw">return</span> pk.bytes;</span> <span class="line" id="L123"> }</span> <span class="line" id="L124"></span> <span class="line" id="L125"> <span class="tok-kw">fn</span> <span class="tok-fn">signWithNonce</span>(public_key: PublicKey, msg: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, scalar: CompressedScalar, nonce: CompressedScalar) (IdentityElementError \|\| NonCanonicalError \|\| KeyMismatchError \|\| WeakPublicKeyError)!Signature {</span> <span class="line" id="L126"> <span class="tok-kw">var</span> st = <span class="tok-kw">try</span> Signer.init(scalar, nonce, public_key);</span> <span class="line" id="L127"> st.update(msg);</span> <span class="line" id="L128"> <span class="tok-kw">return</span> st.finalize();</span> <span class="line" id="L129"> }</span> <span class="line" id="L130"></span> <span class="line" id="L131"> <span class="tok-kw">fn</span> <span class="tok-fn">computeNonceAndSign</span>(public_key: PublicKey, msg: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, noise: ?[noise_length]<span class="tok-type">u8</span>, scalar: CompressedScalar, prefix: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) (IdentityElementError \|\| NonCanonicalError \|\| KeyMismatchError \|\| WeakPublicKeyError)!Signature {</span> <span class="line" id="L132"> <span class="tok-kw">var</span> h = Sha512.init(.{});</span> <span class="line" id="L133"> <span class="tok-kw">if</span> (noise) \|z\| {</span> <span class="line" id="L134"> h.update(z);</span> <span class="line" id="L135"> }</span> <span class="line" id="L136"> h.update(prefix);</span> <span class="line" id="L137"> h.update(msg);</span> <span class="line" id="L138"> <span class="tok-kw">var</span> nonce64: [<span class="tok-number">64</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L139"> h.final(&nonce64);</span> <span class="line" id="L140"></span> <span class="line" id="L141"> <span class="tok-kw">const</span> nonce = Curve.scalar.reduce64(nonce64);</span> <span class="line" id="L142"></span> <span class="line" id="L143"> <span class="tok-kw">return</span> public_key.signWithNonce(msg, scalar, nonce);</span> <span class="line" id="L144"> }</span> <span class="line" id="L145"> };</span> <span class="line" id="L146"></span> <span class="line" id="L147"> <span class="tok-comment">/// A Verifier is used to incrementally verify a signature.</span></span> <span class="line" id="L148"> <span class="tok-comment">/// It can be obtained from a `Signature`, using the `verifier()` function.</span></span> <span class="line" id="L149"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Verifier = <span class="tok-kw">struct</span> {</span> <span class="line" id="L150"> h: Sha512,</span> <span class="line" id="L151"> s: CompressedScalar,</span> <span class="line" id="L152"> a: Curve,</span> <span class="line" id="L153"> expected_r: Curve,</span> <span class="line" id="L154"></span> <span class="line" id="L155"> <span class="tok-kw">fn</span> <span class="tok-fn">init</span>(sig: Signature, public_key: PublicKey) (NonCanonicalError \|\| EncodingError \|\| IdentityElementError)!Verifier {</span> <span class="line" id="L156"> <span class="tok-kw">const</span> r = sig.r;</span> <span class="line" id="L157"> <span class="tok-kw">const</span> s = sig.s;</span> <span class="line" id="L158"> <span class="tok-kw">try</span> Curve.scalar.rejectNonCanonical(s);</span> <span class="line" id="L159"> <span class="tok-kw">const</span> a = <span class="tok-kw">try</span> Curve.fromBytes(public_key.bytes);</span> <span class="line" id="L160"> <span class="tok-kw">try</span> a.rejectIdentity();</span> <span class="line" id="L161"> <span class="tok-kw">try</span> Curve.rejectNonCanonical(r);</span> <span class="line" id="L162"> <span class="tok-kw">const</span> expected_r = <span class="tok-kw">try</span> Curve.fromBytes(r);</span> <span class="line" id="L163"> <span class="tok-kw">try</span> expected_r.rejectIdentity();</span> <span class="line" id="L164"></span> <span class="line" id="L165"> <span class="tok-kw">var</span> h = Sha512.init(.{});</span> <span class="line" id="L166"> h.update(&r);</span> <span class="line" id="L167"> h.update(&public_key.bytes);</span> <span class="line" id="L168"></span> <span class="line" id="L169"> <span class="tok-kw">return</span> Verifier{ .h = h, .s = s, .a = a, .expected_r = expected_r };</span> <span class="line" id="L170"> }</span> <span class="line" id="L171"></span> <span class="line" id="L172"> <span class="tok-comment">/// Add new content to the message to be verified.</span></span> <span class="line" id="L173"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">update</span>(self: Verifier, msg: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L174"> self.h.update(msg);</span> <span class="line" id="L175"> }</span> <span class="line" id="L176"></span> <span class="line" id="L177"> <span class="tok-comment">/// Verify that the signature is valid for the entire message.</span></span> <span class="line" id="L178"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">verify</span>(self: Verifier) (SignatureVerificationError \|\| WeakPublicKeyError \|\| IdentityElementError)!<span class="tok-type">void</span> {</span> <span class="line" id="L179"> <span class="tok-kw">var</span> hram64: [Sha512.digest_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L180"> self.h.final(&hram64);</span> <span class="line" id="L181"> <span class="tok-kw">const</span> hram = Curve.scalar.reduce64(hram64);</span> <span class="line" id="L182"></span> <span class="line" id="L183"> <span class="tok-kw">const</span> sb_ah = <span class="tok-kw">try</span> Curve.basePoint.mulDoubleBasePublic(self.s, self.a.neg(), hram);</span> <span class="line" id="L184"> <span class="tok-kw">if</span> (self.expected_r.sub(sb_ah).rejectLowOrder()) {</span> <span class="line" id="L185"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SignatureVerificationFailed;</span> <span class="line" id="L186"> } <span class="tok-kw">else</span> \|_\| {}</span> <span class="line" id="L187"> }</span> <span class="line" id="L188"> };</span> <span class="line" id="L189"></span> <span class="line" id="L190"> <span class="tok-comment">/// An Ed25519 signature.</span></span> <span class="line" id="L191"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Signature = <span class="tok-kw">struct</span> {</span> <span class="line" id="L192"> <span class="tok-comment">/// Length (in bytes) of a raw signature.</span></span> <span class="line" id="L193"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> encoded_length = Curve.encoded_length + <span class="tok-builtin">@sizeOf</span>(CompressedScalar);</span> <span class="line" id="L194"></span> <span class="line" id="L195"> <span class="tok-comment">/// The R component of an EdDSA signature.</span></span> <span class="line" id="L196"> r: [Curve.encoded_length]<span class="tok-type">u8</span>,</span> <span class="line" id="L197"> <span class="tok-comment">/// The S component of an EdDSA signature.</span></span> <span class="line" id="L198"> s: CompressedScalar,</span> <span class="line" id="L199"></span> <span class="line" id="L200"> <span class="tok-comment">/// Return the raw signature (r, s) in little-endian format.</span></span> <span class="line" id="L201"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toBytes</span>(self: Signature) [encoded_length]<span class="tok-type">u8</span> {</span> <span class="line" id="L202"> <span class="tok-kw">var</span> bytes: [encoded_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L203"> bytes[<span class="tok-number">0</span> .. encoded_length / <span class="tok-number">2</span>]. = self.r;</span> <span class="line" id="L204"> bytes[encoded_length / <span class="tok-number">2</span> ..].* = self.s;</span> <span class="line" id="L205"> <span class="tok-kw">return</span> bytes;</span> <span class="line" id="L206"> }</span> <span class="line" id="L207"></span> <span class="line" id="L208"> <span class="tok-comment">/// Create a signature from a raw encoding of (r, s).</span></span> <span class="line" id="L209"> <span class="tok-comment">/// EdDSA always assumes little-endian.</span></span> <span class="line" id="L210"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromBytes</span>(bytes: [encoded_length]<span class="tok-type">u8</span>) Signature {</span> <span class="line" id="L211"> <span class="tok-kw">return</span> Signature{</span> <span class="line" id="L212"> .r = bytes[<span class="tok-number">0</span> .. encoded_length / <span class="tok-number">2</span>].,</span> <span class="line" id="L213"> .s = bytes[encoded_length / <span class="tok-number">2</span> ..].,</span> <span class="line" id="L214"> };</span> <span class="line" id="L215"> }</span> <span class="line" id="L216"></span> <span class="line" id="L217"> <span class="tok-comment">/// Create a Verifier for incremental verification of a signature.</span></span> <span class="line" id="L218"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">verifier</span>(self: Signature, public_key: PublicKey) (NonCanonicalError \|\| EncodingError \|\| IdentityElementError)!Verifier {</span> <span class="line" id="L219"> <span class="tok-kw">return</span> Verifier.init(self, public_key);</span> <span class="line" id="L220"> }</span> <span class="line" id="L221"></span> <span class="line" id="L222"> <span class="tok-comment">/// Verify the signature against a message and public key.</span></span> <span class="line" id="L223"> <span class="tok-comment">/// Return IdentityElement or NonCanonical if the public key or signature are not in the expected range,</span></span> <span class="line" id="L224"> <span class="tok-comment">/// or SignatureVerificationError if the signature is invalid for the given message and key.</span></span> <span class="line" id="L225"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">verify</span>(self: Signature, msg: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, public_key: PublicKey) (IdentityElementError \|\| NonCanonicalError \|\| SignatureVerificationError \|\| EncodingError \|\| WeakPublicKeyError)!<span class="tok-type">void</span> {</span> <span class="line" id="L226"> <span class="tok-kw">var</span> st = <span class="tok-kw">try</span> Verifier.init(self, public_key);</span> <span class="line" id="L227"> st.update(msg);</span> <span class="line" id="L228"> <span class="tok-kw">return</span> st.verify();</span> <span class="line" id="L229"> }</span> <span class="line" id="L230"> };</span> <span class="line" id="L231"></span> <span class="line" id="L232"> <span class="tok-comment">/// An Ed25519 key pair.</span></span> <span class="line" id="L233"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> KeyPair = <span class="tok-kw">struct</span> {</span> <span class="line" id="L234"> <span class="tok-comment">/// Length (in bytes) of a seed required to create a key pair.</span></span> <span class="line" id="L235"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> seed_length = noise_length;</span> <span class="line" id="L236"></span> <span class="line" id="L237"> <span class="tok-comment">/// Public part.</span></span> <span class="line" id="L238"> public_key: PublicKey,</span> <span class="line" id="L239"> <span class="tok-comment">/// Secret scalar.</span></span> <span class="line" id="L240"> secret_key: SecretKey,</span> <span class="line" id="L241"></span> <span class="line" id="L242"> <span class="tok-comment">/// Derive a key pair from an optional secret seed.</span></span> <span class="line" id="L243"> <span class="tok-comment">///</span></span> <span class="line" id="L244"> <span class="tok-comment">/// As in RFC 8032, an Ed25519 public key is generated by hashing</span></span> <span class="line" id="L245"> <span class="tok-comment">/// the secret key using the SHA-512 function, and interpreting the</span></span> <span class="line" id="L246"> <span class="tok-comment">/// bit-swapped, clamped lower-half of the output as the secret scalar.</span></span> <span class="line" id="L247"> <span class="tok-comment">///</span></span> <span class="line" id="L248"> <span class="tok-comment">/// For this reason, an EdDSA secret key is commonly called a seed,</span></span> <span class="line" id="L249"> <span class="tok-comment">/// from which the actual secret is derived.</span></span> <span class="line" id="L250"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">create</span>(seed: ?[seed_length]<span class="tok-type">u8</span>) IdentityElementError!KeyPair {</span> <span class="line" id="L251"> <span class="tok-kw">const</span> ss = seed <span class="tok-kw">orelse</span> ss: {</span> <span class="line" id="L252"> <span class="tok-kw">var</span> random_seed: [seed_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L253"> crypto.random.bytes(&random_seed);</span> <span class="line" id="L254"> <span class="tok-kw">break</span> :ss random_seed;</span> <span class="line" id="L255"> };</span> <span class="line" id="L256"> <span class="tok-kw">var</span> az: [Sha512.digest_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L257"> <span class="tok-kw">var</span> h = Sha512.init(.{});</span> <span class="line" id="L258"> h.update(&ss);</span> <span class="line" id="L259"> h.final(&az);</span> <span class="line" id="L260"> <span class="tok-kw">const</span> pk_p = Curve.basePoint.clampedMul(az[<span class="tok-number">0</span>..<span class="tok-number">32</span>].) <span class="tok-kw">catch</span> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.IdentityElement;</span> <span class="line" id="L261"> <span class="tok-kw">const</span> pk_bytes = pk_p.toBytes();</span> <span class="line" id="L262"> <span class="tok-kw">var</span> sk_bytes: [SecretKey.encoded_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L263"> sk_bytes[<span class="tok-number">0</span>..ss.len]. = ss;</span> <span class="line" id="L264"> sk_bytes[seed_length..].* = pk_bytes;</span> <span class="line" id="L265"> <span class="tok-kw">return</span> KeyPair{</span> <span class="line" id="L266"> .public_key = PublicKey.fromBytes(pk_bytes) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L267"> .secret_key = <span class="tok-kw">try</span> SecretKey.fromBytes(sk_bytes),</span> <span class="line" id="L268"> };</span> <span class="line" id="L269"> }</span> <span class="line" id="L270"></span> <span class="line" id="L271"> <span class="tok-comment">/// Create a KeyPair from a secret key.</span></span> <span class="line" id="L272"> <span class="tok-comment">/// Note that with EdDSA, storing the seed, and recovering the key pair</span></span> <span class="line" id="L273"> <span class="tok-comment">/// from it is recommended over storing the entire secret key.</span></span> <span class="line" id="L274"> <span class="tok-comment">/// The seed of an exiting key pair can be obtained with</span></span> <span class="line" id="L275"> <span class="tok-comment">/// `key_pair.secret_key.seed()`.</span></span> <span class="line" id="L276"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromSecretKey</span>(secret_key: SecretKey) (NonCanonicalError \|\| EncodingError \|\| IdentityElementError)!KeyPair {</span> <span class="line" id="L277"> <span class="tok-comment">// It is critical for EdDSA to use the correct public key.</span> </span> <span class="line" id="L278"> <span class="tok-comment">// In order to enforce this, a SecretKey implicitly includes a copy of the public key.</span> </span> <span class="line" id="L279"> <span class="tok-comment">// In Debug mode, we can still afford checking that the public key is correct for extra safety.</span> </span> <span class="line" id="L280"> <span class="tok-kw">if</span> (builtin.mode == .Debug) {</span> <span class="line" id="L281"> <span class="tok-kw">const</span> pk_p = <span class="tok-kw">try</span> Curve.fromBytes(secret_key.publicKeyBytes());</span> <span class="line" id="L282"> <span class="tok-kw">const</span> recomputed_kp = <span class="tok-kw">try</span> create(secret_key.seed());</span> <span class="line" id="L283"> debug.assert(mem.eql(<span class="tok-type">u8</span>, &recomputed_kp.public_key.toBytes(), &pk_p.toBytes()));</span> <span class="line" id="L284"> }</span> <span class="line" id="L285"> <span class="tok-kw">return</span> KeyPair{</span> <span class="line" id="L286"> .public_key = <span class="tok-kw">try</span> PublicKey.fromBytes(secret_key.publicKeyBytes()),</span> <span class="line" id="L287"> .secret_key = secret_key,</span> <span class="line" id="L288"> };</span> <span class="line" id="L289"> }</span> <span class="line" id="L290"></span> <span class="line" id="L291"> <span class="tok-comment">/// Sign a message using the key pair.</span></span> <span class="line" id="L292"> <span class="tok-comment">/// The noise can be null in order to create deterministic signatures.</span></span> <span class="line" id="L293"> <span class="tok-comment">/// If deterministic signatures are not required, the noise should be randomly generated instead.</span></span> <span class="line" id="L294"> <span class="tok-comment">/// This helps defend against fault attacks.</span></span> <span class="line" id="L295"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">sign</span>(key_pair: KeyPair, msg: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, noise: ?[noise_length]<span class="tok-type">u8</span>) (IdentityElementError \|\| NonCanonicalError \|\| KeyMismatchError \|\| WeakPublicKeyError)!Signature {</span> <span class="line" id="L296"> <span class="tok-kw">if</span> (!mem.eql(<span class="tok-type">u8</span>, &key_pair.secret_key.publicKeyBytes(), &key_pair.public_key.toBytes())) {</span> <span class="line" id="L297"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.KeyMismatch;</span> <span class="line" id="L298"> }</span> <span class="line" id="L299"> <span class="tok-kw">const</span> scalar_and_prefix = key_pair.secret_key.scalarAndPrefix();</span> <span class="line" id="L300"> <span class="tok-kw">return</span> key_pair.public_key.computeNonceAndSign(</span> <span class="line" id="L301"> msg,</span> <span class="line" id="L302"> noise,</span> <span class="line" id="L303"> scalar_and_prefix.scalar,</span> <span class="line" id="L304"> &scalar_and_prefix.prefix,</span> <span class="line" id="L305"> );</span> <span class="line" id="L306"> }</span> <span class="line" id="L307"></span> <span class="line" id="L308"> <span class="tok-comment">/// Create a Signer, that can be used for incremental signing.</span></span> <span class="line" id="L309"> <span class="tok-comment">/// Note that the signature is not deterministic.</span></span> <span class="line" id="L310"> <span class="tok-comment">/// The noise parameter, if set, should be something unique for each message,</span></span> <span class="line" id="L311"> <span class="tok-comment">/// such as a random nonce, or a counter.</span></span> <span class="line" id="L312"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">signer</span>(key_pair: KeyPair, noise: ?[noise_length]<span class="tok-type">u8</span>) (IdentityElementError \|\| KeyMismatchError \|\| NonCanonicalError \|\| WeakPublicKeyError)!Signer {</span> <span class="line" id="L313"> <span class="tok-kw">if</span> (!mem.eql(<span class="tok-type">u8</span>, &key_pair.secret_key.publicKeyBytes(), &key_pair.public_key.toBytes())) {</span> <span class="line" id="L314"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.KeyMismatch;</span> <span class="line" id="L315"> }</span> <span class="line" id="L316"> <span class="tok-kw">const</span> scalar_and_prefix = key_pair.secret_key.scalarAndPrefix();</span> <span class="line" id="L317"> <span class="tok-kw">var</span> h = Sha512.init(.{});</span> <span class="line" id="L318"> h.update(&scalar_and_prefix.prefix);</span> <span class="line" id="L319"> <span class="tok-kw">var</span> noise2: [noise_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L320"> crypto.random.bytes(&noise2);</span> <span class="line" id="L321"> h.update(&noise2);</span> <span class="line" id="L322"> <span class="tok-kw">if</span> (noise) \|z\| {</span> <span class="line" id="L323"> h.update(z);</span> <span class="line" id="L324"> }</span> <span class="line" id="L325"> <span class="tok-kw">var</span> nonce64: [<span class="tok-number">64</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L326"> h.final(&nonce64);</span> <span class="line" id="L327"> <span class="tok-kw">const</span> nonce = Curve.scalar.reduce64(nonce64);</span> <span class="line" id="L328"></span> <span class="line" id="L329"> <span class="tok-kw">return</span> Signer.init(scalar_and_prefix.scalar, nonce, key_pair.public_key);</span> <span class="line" id="L330"> }</span> <span class="line" id="L331"> };</span> <span class="line" id="L332"></span> <span class="line" id="L333"> <span class="tok-comment">/// A (signature, message, public_key) tuple for batch verification</span></span> <span class="line" id="L334"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> BatchElement = <span class="tok-kw">struct</span> {</span> <span class="line" id="L335"> sig: Signature,</span> <span class="line" id="L336"> msg: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L337"> public_key: PublicKey,</span> <span class="line" id="L338"> };</span> <span class="line" id="L339"></span> <span class="line" id="L340"> <span class="tok-comment">/// Verify several signatures in a single operation, much faster than verifying signatures one-by-one</span></span> <span class="line" id="L341"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">verifyBatch</span>(<span class="tok-kw">comptime</span> count: <span class="tok-type">usize</span>, signature_batch: [count]BatchElement) (SignatureVerificationError \|\| IdentityElementError \|\| WeakPublicKeyError \|\| EncodingError \|\| NonCanonicalError)!<span class="tok-type">void</span> {</span> <span class="line" id="L342"> <span class="tok-kw">var</span> r_batch: [count]CompressedScalar = <span class="tok-null">undefined</span>;</span> <span class="line" id="L343"> <span class="tok-kw">var</span> s_batch: [count]CompressedScalar = <span class="tok-null">undefined</span>;</span> <span class="line" id="L344"> <span class="tok-kw">var</span> a_batch: [count]Curve = <span class="tok-null">undefined</span>;</span> <span class="line" id="L345"> <span class="tok-kw">var</span> expected_r_batch: [count]Curve = <span class="tok-null">undefined</span>;</span> <span class="line" id="L346"></span> <span class="line" id="L347"> <span class="tok-kw">for</span> (signature_batch, <span class="tok-number">0</span>..) \|signature, i\| {</span> <span class="line" id="L348"> <span class="tok-kw">const</span> r = signature.sig.r;</span> <span class="line" id="L349"> <span class="tok-kw">const</span> s = signature.sig.s;</span> <span class="line" id="L350"> <span class="tok-kw">try</span> Curve.scalar.rejectNonCanonical(s);</span> <span class="line" id="L351"> <span class="tok-kw">const</span> a = <span class="tok-kw">try</span> Curve.fromBytes(signature.public_key.bytes);</span> <span class="line" id="L352"> <span class="tok-kw">try</span> a.rejectIdentity();</span> <span class="line" id="L353"> <span class="tok-kw">try</span> Curve.rejectNonCanonical(r);</span> <span class="line" id="L354"> <span class="tok-kw">const</span> expected_r = <span class="tok-kw">try</span> Curve.fromBytes(r);</span> <span class="line" id="L355"> <span class="tok-kw">try</span> expected_r.rejectIdentity();</span> <span class="line" id="L356"> expected_r_batch[i] = expected_r;</span> <span class="line" id="L357"> r_batch[i] = r;</span> <span class="line" id="L358"> s_batch[i] = s;</span> <span class="line" id="L359"> a_batch[i] = a;</span> <span class="line" id="L360"> }</span> <span class="line" id="L361"></span> <span class="line" id="L362"> <span class="tok-kw">var</span> hram_batch: [count]Curve.scalar.CompressedScalar = <span class="tok-null">undefined</span>;</span> <span class="line" id="L363"> <span class="tok-kw">for</span> (signature_batch, <span class="tok-number">0</span>..) \|signature, i\| {</span> <span class="line" id="L364"> <span class="tok-kw">var</span> h = Sha512.init(.{});</span> <span class="line" id="L365"> h.update(&r_batch[i]);</span> <span class="line" id="L366"> h.update(&signature.public_key.bytes);</span> <span class="line" id="L367"> h.update(signature.msg);</span> <span class="line" id="L368"> <span class="tok-kw">var</span> hram64: [Sha512.digest_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L369"> h.final(&hram64);</span> <span class="line" id="L370"> hram_batch[i] = Curve.scalar.reduce64(hram64);</span> <span class="line" id="L371"> }</span> <span class="line" id="L372"></span> <span class="line" id="L373"> <span class="tok-kw">var</span> z_batch: [count]Curve.scalar.CompressedScalar = <span class="tok-null">undefined</span>;</span> <span class="line" id="L374"> <span class="tok-kw">for</span> (&z_batch) \|z\| {</span> <span class="line" id="L375"> crypto.random.bytes(z[<span class="tok-number">0</span>..<span class="tok-number">16</span>]);</span> <span class="line" id="L376"> <span class="tok-builtin">@memset</span>(z[<span class="tok-number">16</span>..], <span class="tok-number">0</span>);</span> <span class="line" id="L377"> }</span> <span class="line" id="L378"></span> <span class="line" id="L379"> <span class="tok-kw">var</span> zs_sum = Curve.scalar.zero;</span> <span class="line" id="L380"> <span class="tok-kw">for</span> (z_batch, <span class="tok-number">0</span>..) \|z, i\| {</span> <span class="line" id="L381"> <span class="tok-kw">const</span> zs = Curve.scalar.mul(z, s_batch[i]);</span> <span class="line" id="L382"> zs_sum = Curve.scalar.add(zs_sum, zs);</span> <span class="line" id="L383"> }</span> <span class="line" id="L384"> zs_sum = Curve.scalar.mul8(zs_sum);</span> <span class="line" id="L385"></span> <span class="line" id="L386"> <span class="tok-kw">var</span> zhs: [count]Curve.scalar.CompressedScalar = <span class="tok-null">undefined</span>;</span> <span class="line" id="L387"> <span class="tok-kw">for</span> (z_batch, <span class="tok-number">0</span>..) \|z, i\| {</span> <span class="line" id="L388"> zhs[i] = Curve.scalar.mul(z, hram_batch[i]);</span> <span class="line" id="L389"> }</span> <span class="line" id="L390"></span> <span class="line" id="L391"> <span class="tok-kw">const</span> zr = (<span class="tok-kw">try</span> Curve.mulMulti(count, expected_r_batch, z_batch)).clearCofactor();</span> <span class="line" id="L392"> <span class="tok-kw">const</span> zah = (<span class="tok-kw">try</span> Curve.mulMulti(count, a_batch, zhs)).clearCofactor();</span> <span class="line" id="L393"></span> <span class="line" id="L394"> <span class="tok-kw">const</span> zsb = <span class="tok-kw">try</span> Curve.basePoint.mulPublic(zs_sum);</span> <span class="line" id="L395"> <span class="tok-kw">if</span> (zr.add(zah).sub(zsb).rejectIdentity()) \|_\| {</span> <span class="line" id="L396"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SignatureVerificationFailed;</span> <span class="line" id="L397"> } <span class="tok-kw">else</span> \|_\| {}</span> <span class="line" id="L398"> }</span> <span class="line" id="L399"></span> <span class="line" id="L400"> <span class="tok-comment">/// Ed25519 signatures with key blinding.</span></span> <span class="line" id="L401"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> key_blinding = <span class="tok-kw">struct</span> {</span> <span class="line" id="L402"> <span class="tok-comment">/// Length (in bytes) of a blinding seed.</span></span> <span class="line" id="L403"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> blind_seed_length = <span class="tok-number">32</span>;</span> <span class="line" id="L404"></span> <span class="line" id="L405"> <span class="tok-comment">/// A blind secret key.</span></span> <span class="line" id="L406"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> BlindSecretKey = <span class="tok-kw">struct</span> {</span> <span class="line" id="L407"> prefix: [<span class="tok-number">64</span>]<span class="tok-type">u8</span>,</span> <span class="line" id="L408"> blind_scalar: CompressedScalar,</span> <span class="line" id="L409"> blind_public_key: BlindPublicKey,</span> <span class="line" id="L410"> };</span> <span class="line" id="L411"></span> <span class="line" id="L412"> <span class="tok-comment">/// A blind public key.</span></span> <span class="line" id="L413"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> BlindPublicKey = <span class="tok-kw">struct</span> {</span> <span class="line" id="L414"> <span class="tok-comment">/// Public key equivalent, that can used for signature verification.</span></span> <span class="line" id="L415"> key: PublicKey,</span> <span class="line" id="L416"></span> <span class="line" id="L417"> <span class="tok-comment">/// Recover a public key from a blind version of it.</span></span> <span class="line" id="L418"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">unblind</span>(blind_public_key: BlindPublicKey, blind_seed: [blind_seed_length]<span class="tok-type">u8</span>, ctx: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) (IdentityElementError \|\| NonCanonicalError \|\| EncodingError \|\| WeakPublicKeyError)!PublicKey {</span> <span class="line" id="L419"> <span class="tok-kw">const</span> blind_h = blindCtx(blind_seed, ctx);</span> <span class="line" id="L420"> <span class="tok-kw">const</span> inv_blind_factor = Scalar.fromBytes(blind_h[<span class="tok-number">0</span>..<span class="tok-number">32</span>].).invert().toBytes();</span> <span class="line" id="L421"> <span class="tok-kw">const</span> pk_p = <span class="tok-kw">try</span> (<span class="tok-kw">try</span> Curve.fromBytes(blind_public_key.key.bytes)).mul(inv_blind_factor);</span> <span class="line" id="L422"> <span class="tok-kw">return</span> PublicKey.fromBytes(pk_p.toBytes());</span> <span class="line" id="L423"> }</span> <span class="line" id="L424"> };</span> <span class="line" id="L425"></span> <span class="line" id="L426"> <span class="tok-comment">/// A blind key pair.</span></span> <span class="line" id="L427"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> BlindKeyPair = <span class="tok-kw">struct</span> {</span> <span class="line" id="L428"> blind_public_key: BlindPublicKey,</span> <span class="line" id="L429"> blind_secret_key: BlindSecretKey,</span> <span class="line" id="L430"></span> <span class="line" id="L431"> <span class="tok-comment">/// Create an blind key pair from an existing key pair, a blinding seed and a context.</span></span> <span class="line" id="L432"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">init</span>(key_pair: Ed25519.KeyPair, blind_seed: [blind_seed_length]<span class="tok-type">u8</span>, ctx: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) (NonCanonicalError \|\| IdentityElementError)!BlindKeyPair {</span> <span class="line" id="L433"> <span class="tok-kw">var</span> h: [Sha512.digest_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L434"> Sha512.hash(&key_pair.secret_key.seed(), &h, .{});</span> <span class="line" id="L435"> Curve.scalar.clamp(h[<span class="tok-number">0</span>..<span class="tok-number">32</span>]);</span> <span class="line" id="L436"> <span class="tok-kw">const</span> scalar = Curve.scalar.reduce(h[<span class="tok-number">0</span>..<span class="tok-number">32</span>].);</span> <span class="line" id="L437"></span> <span class="line" id="L438"> <span class="tok-kw">const</span> blind_h = blindCtx(blind_seed, ctx);</span> <span class="line" id="L439"> <span class="tok-kw">const</span> blind_factor = Curve.scalar.reduce(blind_h[<span class="tok-number">0</span>..<span class="tok-number">32</span>].);</span> <span class="line" id="L440"></span> <span class="line" id="L441"> <span class="tok-kw">const</span> blind_scalar = Curve.scalar.mul(scalar, blind_factor);</span> <span class="line" id="L442"> <span class="tok-kw">const</span> blind_public_key = BlindPublicKey{</span> <span class="line" id="L443"> .key = <span class="tok-kw">try</span> PublicKey.fromBytes((Curve.basePoint.mul(blind_scalar) <span class="tok-kw">catch</span> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.IdentityElement).toBytes()),</span> <span class="line" id="L444"> };</span> <span class="line" id="L445"></span> <span class="line" id="L446"> <span class="tok-kw">var</span> prefix: [<span class="tok-number">64</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L447"> prefix[<span class="tok-number">0</span>..<span class="tok-number">32</span>]. = h[<span class="tok-number">32</span>..<span class="tok-number">64</span>].;</span> <span class="line" id="L448"> prefix[<span class="tok-number">32</span>..<span class="tok-number">64</span>]. = blind_h[<span class="tok-number">32</span>..<span class="tok-number">64</span>].;</span> <span class="line" id="L449"></span> <span class="line" id="L450"> <span class="tok-kw">const</span> blind_secret_key = BlindSecretKey{</span> <span class="line" id="L451"> .prefix = prefix,</span> <span class="line" id="L452"> .blind_scalar = blind_scalar,</span> <span class="line" id="L453"> .blind_public_key = blind_public_key,</span> <span class="line" id="L454"> };</span> <span class="line" id="L455"> <span class="tok-kw">return</span> BlindKeyPair{</span> <span class="line" id="L456"> .blind_public_key = blind_public_key,</span> <span class="line" id="L457"> .blind_secret_key = blind_secret_key,</span> <span class="line" id="L458"> };</span> <span class="line" id="L459"> }</span> <span class="line" id="L460"></span> <span class="line" id="L461"> <span class="tok-comment">/// Sign a message using a blind key pair, and optional random noise.</span></span> <span class="line" id="L462"> <span class="tok-comment">/// Having noise creates non-standard, non-deterministic signatures,</span></span> <span class="line" id="L463"> <span class="tok-comment">/// but has been proven to increase resilience against fault attacks.</span></span> <span class="line" id="L464"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">sign</span>(key_pair: BlindKeyPair, msg: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, noise: ?[noise_length]<span class="tok-type">u8</span>) (IdentityElementError \|\| KeyMismatchError \|\| NonCanonicalError \|\| WeakPublicKeyError)!Signature {</span> <span class="line" id="L465"> <span class="tok-kw">const</span> scalar = key_pair.blind_secret_key.blind_scalar;</span> <span class="line" id="L466"> <span class="tok-kw">const</span> prefix = key_pair.blind_secret_key.prefix;</span> <span class="line" id="L467"></span> <span class="line" id="L468"> <span class="tok-kw">return</span> (<span class="tok-kw">try</span> PublicKey.fromBytes(key_pair.blind_public_key.key.bytes))</span> <span class="line" id="L469"> .computeNonceAndSign(msg, noise, scalar, &prefix);</span> <span class="line" id="L470"> }</span> <span class="line" id="L471"> };</span> <span class="line" id="L472"></span> <span class="line" id="L473"> <span class="tok-comment">/// Compute a blind context from a blinding seed and a context.</span></span> <span class="line" id="L474"> <span class="tok-kw">fn</span> <span class="tok-fn">blindCtx</span>(blind_seed: [blind_seed_length]<span class="tok-type">u8</span>, ctx: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) [Sha512.digest_length]<span class="tok-type">u8</span> {</span> <span class="line" id="L475"> <span class="tok-kw">var</span> blind_h: [Sha512.digest_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L476"> <span class="tok-kw">var</span> hx = Sha512.init(.{});</span> <span class="line" id="L477"> hx.update(&blind_seed);</span> <span class="line" id="L478"> hx.update(&[<span class="tok-number">1</span>]<span class="tok-type">u8</span>{<span class="tok-number">0</span>});</span> <span class="line" id="L479"> hx.update(ctx);</span> <span class="line" id="L480"> hx.final(&blind_h);</span> <span class="line" id="L481"> <span class="tok-kw">return</span> blind_h;</span> <span class="line" id="L482"> }</span> <span class="line" id="L483"> };</span> <span class="line" id="L484">};</span> <span class="line" id="L485"></span> <span class="line" id="L486"><span class="tok-kw">test</span> <span class="tok-str">"ed25519 key pair creation"</span> {</span> <span class="line" id="L487"> <span class="tok-kw">var</span> seed: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L488"> _ = <span class="tok-kw">try</span> fmt.hexToBytes(seed[<span class="tok-number">0</span>..], <span class="tok-str">"8052030376d47112be7f73ed7a019293dd12ad910b654455798b4667d73de166"</span>);</span> <span class="line" id="L489"> <span class="tok-kw">const</span> key_pair = <span class="tok-kw">try</span> Ed25519.KeyPair.create(seed);</span> <span class="line" id="L490"> <span class="tok-kw">var</span> buf: [<span class="tok-number">256</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L491"> <span class="tok-kw">try</span> std.testing.expectEqualStrings(<span class="tok-kw">try</span> std.fmt.bufPrint(&buf, <span class="tok-str">"{s}"</span>, .{std.fmt.fmtSliceHexUpper(&key_pair.secret_key.toBytes())}), <span class="tok-str">"8052030376D47112BE7F73ED7A019293DD12AD910B654455798B4667D73DE1662D6F7455D97B4A3A10D7293909D1A4F2058CB9A370E43FA8154BB280DB839083"</span>);</span> <span class="line" id="L492"> <span class="tok-kw">try</span> std.testing.expectEqualStrings(<span class="tok-kw">try</span> std.fmt.bufPrint(&buf, <span class="tok-str">"{s}"</span>, .{std.fmt.fmtSliceHexUpper(&key_pair.public_key.toBytes())}), <span class="tok-str">"2D6F7455D97B4A3A10D7293909D1A4F2058CB9A370E43FA8154BB280DB839083"</span>);</span> <span class="line" id="L493">}</span> <span class="line" id="L494"></span> <span class="line" id="L495"><span class="tok-kw">test</span> <span class="tok-str">"ed25519 signature"</span> {</span> <span class="line" id="L496"> <span class="tok-kw">var</span> seed: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L497"> _ = <span class="tok-kw">try</span> fmt.hexToBytes(seed[<span class="tok-number">0</span>..], <span class="tok-str">"8052030376d47112be7f73ed7a019293dd12ad910b654455798b4667d73de166"</span>);</span> <span class="line" id="L498"> <span class="tok-kw">const</span> key_pair = <span class="tok-kw">try</span> Ed25519.KeyPair.create(seed);</span> <span class="line" id="L499"></span> <span class="line" id="L500"> <span class="tok-kw">const</span> sig = <span class="tok-kw">try</span> key_pair.sign(<span class="tok-str">"test"</span>, <span class="tok-null">null</span>);</span> <span class="line" id="L501"> <span class="tok-kw">var</span> buf: [<span class="tok-number">128</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L502"> <span class="tok-kw">try</span> std.testing.expectEqualStrings(<span class="tok-kw">try</span> std.fmt.bufPrint(&buf, <span class="tok-str">"{s}"</span>, .{std.fmt.fmtSliceHexUpper(&sig.toBytes())}), <span class="tok-str">"10A442B4A80CC4225B154F43BEF28D2472CA80221951262EB8E0DF9091575E2687CC486E77263C3418C757522D54F84B0359236ABBBD4ACD20DC297FDCA66808"</span>);</span> <span class="line" id="L503"> <span class="tok-kw">try</span> sig.verify(<span class="tok-str">"test"</span>, key_pair.public_key);</span> <span class="line" id="L504"> <span class="tok-kw">try</span> std.testing.expectError(<span class="tok-kw">error</span>.SignatureVerificationFailed, sig.verify(<span class="tok-str">"TEST"</span>, key_pair.public_key));</span> <span class="line" id="L505">}</span> <span class="line" id="L506"></span> <span class="line" id="L507"><span class="tok-kw">test</span> <span class="tok-str">"ed25519 batch verification"</span> {</span> <span class="line" id="L508"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L509"> <span class="tok-kw">while</span> (i < <span class="tok-number">100</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L510"> <span class="tok-kw">const</span> key_pair = <span class="tok-kw">try</span> Ed25519.KeyPair.create(<span class="tok-null">null</span>);</span> <span class="line" id="L511"> <span class="tok-kw">var</span> msg1: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L512"> <span class="tok-kw">var</span> msg2: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L513"> crypto.random.bytes(&msg1);</span> <span class="line" id="L514"> crypto.random.bytes(&msg2);</span> <span class="line" id="L515"> <span class="tok-kw">const</span> sig1 = <span class="tok-kw">try</span> key_pair.sign(&msg1, <span class="tok-null">null</span>);</span> <span class="line" id="L516"> <span class="tok-kw">const</span> sig2 = <span class="tok-kw">try</span> key_pair.sign(&msg2, <span class="tok-null">null</span>);</span> <span class="line" id="L517"> <span class="tok-kw">var</span> signature_batch = [_]Ed25519.BatchElement{</span> <span class="line" id="L518"> Ed25519.BatchElement{</span> <span class="line" id="L519"> .sig = sig1,</span> <span class="line" id="L520"> .msg = &msg1,</span> <span class="line" id="L521"> .public_key = key_pair.public_key,</span> <span class="line" id="L522"> },</span> <span class="line" id="L523"> Ed25519.BatchElement{</span> <span class="line" id="L524"> .sig = sig2,</span> <span class="line" id="L525"> .msg = &msg2,</span> <span class="line" id="L526"> .public_key = key_pair.public_key,</span> <span class="line" id="L527"> },</span> <span class="line" id="L528"> };</span> <span class="line" id="L529"> <span class="tok-kw">try</span> Ed25519.verifyBatch(<span class="tok-number">2</span>, signature_batch);</span> <span class="line" id="L530"></span> <span class="line" id="L531"> signature_batch[<span class="tok-number">1</span>].sig = sig1;</span> <span class="line" id="L532"> <span class="tok-kw">try</span> std.testing.expectError(<span class="tok-kw">error</span>.SignatureVerificationFailed, Ed25519.verifyBatch(signature_batch.len, signature_batch));</span> <span class="line" id="L533"> }</span> <span class="line" id="L534">}</span> <span class="line" id="L535"></span> <span class="line" id="L536"><span class="tok-kw">test</span> <span class="tok-str">"ed25519 test vectors"</span> {</span> <span class="line" id="L537"> <span class="tok-kw">const</span> Vec = <span class="tok-kw">struct</span> {</span> <span class="line" id="L538"> msg_hex: <span class="tok-kw">const</span> [<span class="tok-number">64</span>:<span class="tok-number">0</span>]<span class="tok-type">u8</span>,</span> <span class="line" id="L539"> public_key_hex: <span class="tok-kw">const</span> [<span class="tok-number">64</span>:<span class="tok-number">0</span>]<span class="tok-type">u8</span>,</span> <span class="line" id="L540"> sig_hex: <span class="tok-kw">const</span> [<span class="tok-number">128</span>:<span class="tok-number">0</span>]<span class="tok-type">u8</span>,</span> <span class="line" id="L541"> expected: ?<span class="tok-type">anyerror</span>,</span> <span class="line" id="L542"> };</span> <span class="line" id="L543"></span> <span class="line" id="L544"> <span class="tok-kw">const</span> entries = [_]Vec{</span> <span class="line" id="L545"> Vec{</span> <span class="line" id="L546"> .msg_hex = <span class="tok-str">"8c93255d71dcab10e8f379c26200f3c7bd5f09d9bc3068d3ef4edeb4853022b6"</span>,</span> <span class="line" id="L547"> .public_key_hex = <span class="tok-str">"c7176a703d4dd84fba3c0b760d10670f2a2053fa2c39ccc64ec7fd7792ac03fa"</span>,</span> <span class="line" id="L548"> .sig_hex = <span class="tok-str">"c7176a703d4dd84fba3c0b760d10670f2a2053fa2c39ccc64ec7fd7792ac037a0000000000000000000000000000000000000000000000000000000000000000"</span>,</span> <span class="line" id="L549"> .expected = <span class="tok-kw">error</span>.WeakPublicKey, <span class="tok-comment">// 0</span> </span> <span class="line" id="L550"> },</span> <span class="line" id="L551"> Vec{</span> <span class="line" id="L552"> .msg_hex = <span class="tok-str">"9bd9f44f4dcc75bd531b56b2cd280b0bb38fc1cd6d1230e14861d861de092e79"</span>,</span> <span class="line" id="L553"> .public_key_hex = <span class="tok-str">"c7176a703d4dd84fba3c0b760d10670f2a2053fa2c39ccc64ec7fd7792ac03fa"</span>,</span> <span class="line" id="L554"> .sig_hex = <span class="tok-str">"f7badec5b8abeaf699583992219b7b223f1df3fbbea919844e3f7c554a43dd43a5bb704786be79fc476f91d3f3f89b03984d8068dcf1bb7dfc6637b45450ac04"</span>,</span> <span class="line" id="L555"> .expected = <span class="tok-kw">error</span>.WeakPublicKey, <span class="tok-comment">// 1</span> </span> <span class="line" id="L556"> },</span> <span class="line" id="L557"> Vec{</span> <span class="line" id="L558"> .msg_hex = <span class="tok-str">"aebf3f2601a0c8c5d39cc7d8911642f740b78168218da8471772b35f9d35b9ab"</span>,</span> <span class="line" id="L559"> .public_key_hex = <span class="tok-str">"f7badec5b8abeaf699583992219b7b223f1df3fbbea919844e3f7c554a43dd43"</span>,</span> <span class="line" id="L560"> .sig_hex = <span class="tok-str">"c7176a703d4dd84fba3c0b760d10670f2a2053fa2c39ccc64ec7fd7792ac03fa8c4bd45aecaca5b24fb97bc10ac27ac8751a7dfe1baff8b953ec9f5833ca260e"</span>,</span> <span class="line" id="L561"> .expected = <span class="tok-null">null</span>, <span class="tok-comment">// 2 - small order R is acceptable</span> </span> <span class="line" id="L562"> },</span> <span class="line" id="L563"> Vec{</span> <span class="line" id="L564"> .msg_hex = <span class="tok-str">"9bd9f44f4dcc75bd531b56b2cd280b0bb38fc1cd6d1230e14861d861de092e79"</span>,</span> <span class="line" id="L565"> .public_key_hex = <span class="tok-str">"cdb267ce40c5cd45306fa5d2f29731459387dbf9eb933b7bd5aed9a765b88d4d"</span>,</span> <span class="line" id="L566"> .sig_hex = <span class="tok-str">"9046a64750444938de19f227bb80485e92b83fdb4b6506c160484c016cc1852f87909e14428a7a1d62e9f22f3d3ad7802db02eb2e688b6c52fcd6648a98bd009"</span>,</span> <span class="line" id="L567"> .expected = <span class="tok-null">null</span>, <span class="tok-comment">// 3 - mixed orders</span> </span> <span class="line" id="L568"> },</span> <span class="line" id="L569"> Vec{</span> <span class="line" id="L570"> .msg_hex = <span class="tok-str">"e47d62c63f830dc7a6851a0b1f33ae4bb2f507fb6cffec4011eaccd55b53f56c"</span>,</span> <span class="line" id="L571"> .public_key_hex = <span class="tok-str">"cdb267ce40c5cd45306fa5d2f29731459387dbf9eb933b7bd5aed9a765b88d4d"</span>,</span> <span class="line" id="L572"> .sig_hex = <span class="tok-str">"160a1cb0dc9c0258cd0a7d23e94d8fa878bcb1925f2c64246b2dee1796bed5125ec6bc982a269b723e0668e540911a9a6a58921d6925e434ab10aa7940551a09"</span>,</span> <span class="line" id="L573"> .expected = <span class="tok-null">null</span>, <span class="tok-comment">// 4 - cofactored verification</span> </span> <span class="line" id="L574"> },</span> <span class="line" id="L575"> Vec{</span> <span class="line" id="L576"> .msg_hex = <span class="tok-str">"e47d62c63f830dc7a6851a0b1f33ae4bb2f507fb6cffec4011eaccd55b53f56c"</span>,</span> <span class="line" id="L577"> .public_key_hex = <span class="tok-str">"cdb267ce40c5cd45306fa5d2f29731459387dbf9eb933b7bd5aed9a765b88d4d"</span>,</span> <span class="line" id="L578"> .sig_hex = <span class="tok-str">"21122a84e0b5fca4052f5b1235c80a537878b38f3142356b2c2384ebad4668b7e40bc836dac0f71076f9abe3a53f9c03c1ceeeddb658d0030494ace586687405"</span>,</span> <span class="line" id="L579"> .expected = <span class="tok-null">null</span>, <span class="tok-comment">// 5 - cofactored verification</span> </span> <span class="line" id="L580"> },</span> <span class="line" id="L581"> Vec{</span> <span class="line" id="L582"> .msg_hex = <span class="tok-str">"85e241a07d148b41e47d62c63f830dc7a6851a0b1f33ae4bb2f507fb6cffec40"</span>,</span> <span class="line" id="L583"> .public_key_hex = <span class="tok-str">"442aad9f089ad9e14647b1ef9099a1ff4798d78589e66f28eca69c11f582a623"</span>,</span> <span class="line" id="L584"> .sig_hex = <span class="tok-str">"e96f66be976d82e60150baecff9906684aebb1ef181f67a7189ac78ea23b6c0e547f7690a0e2ddcd04d87dbc3490dc19b3b3052f7ff0538cb68afb369ba3a514"</span>,</span> <span class="line" id="L585"> .expected = <span class="tok-kw">error</span>.NonCanonical, <span class="tok-comment">// 6 - S > L</span> </span> <span class="line" id="L586"> },</span> <span class="line" id="L587"> Vec{</span> <span class="line" id="L588"> .msg_hex = <span class="tok-str">"85e241a07d148b41e47d62c63f830dc7a6851a0b1f33ae4bb2f507fb6cffec40"</span>,</span> <span class="line" id="L589"> .public_key_hex = <span class="tok-str">"442aad9f089ad9e14647b1ef9099a1ff4798d78589e66f28eca69c11f582a623"</span>,</span> <span class="line" id="L590"> .sig_hex = <span class="tok-str">"8ce5b96c8f26d0ab6c47958c9e68b937104cd36e13c33566acd2fe8d38aa19427e71f98a4734e74f2f13f06f97c20d58cc3f54b8bd0d272f42b695dd7e89a8c2"</span>,</span> <span class="line" id="L591"> .expected = <span class="tok-kw">error</span>.NonCanonical, <span class="tok-comment">// 7 - S >> L</span> </span> <span class="line" id="L592"> },</span> <span class="line" id="L593"> Vec{</span> <span class="line" id="L594"> .msg_hex = <span class="tok-str">"9bedc267423725d473888631ebf45988bad3db83851ee85c85e241a07d148b41"</span>,</span> <span class="line" id="L595"> .public_key_hex = <span class="tok-str">"f7badec5b8abeaf699583992219b7b223f1df3fbbea919844e3f7c554a43dd43"</span>,</span> <span class="line" id="L596"> .sig_hex = <span class="tok-str">"ecffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff03be9678ac102edcd92b0210bb34d7428d12ffc5df5f37e359941266a4e35f0f"</span>,</span> <span class="line" id="L597"> .expected = <span class="tok-kw">error</span>.IdentityElement, <span class="tok-comment">// 8 - non-canonical R</span> </span> <span class="line" id="L598"> },</span> <span class="line" id="L599"> Vec{</span> <span class="line" id="L600"> .msg_hex = <span class="tok-str">"9bedc267423725d473888631ebf45988bad3db83851ee85c85e241a07d148b41"</span>,</span> <span class="line" id="L601"> .public_key_hex = <span class="tok-str">"f7badec5b8abeaf699583992219b7b223f1df3fbbea919844e3f7c554a43dd43"</span>,</span> <span class="line" id="L602"> .sig_hex = <span class="tok-str">"ecffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffca8c5b64cd208982aa38d4936621a4775aa233aa0505711d8fdcfdaa943d4908"</span>,</span> <span class="line" id="L603"> .expected = <span class="tok-kw">error</span>.IdentityElement, <span class="tok-comment">// 9 - non-canonical R</span> </span> <span class="line" id="L604"> },</span> <span class="line" id="L605"> Vec{</span> <span class="line" id="L606"> .msg_hex = <span class="tok-str">"e96b7021eb39c1a163b6da4e3093dcd3f21387da4cc4572be588fafae23c155b"</span>,</span> <span class="line" id="L607"> .public_key_hex = <span class="tok-str">"ecffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"</span>,</span> <span class="line" id="L608"> .sig_hex = <span class="tok-str">"a9d55260f765261eb9b84e106f665e00b867287a761990d7135963ee0a7d59dca5bb704786be79fc476f91d3f3f89b03984d8068dcf1bb7dfc6637b45450ac04"</span>,</span> <span class="line" id="L609"> .expected = <span class="tok-kw">error</span>.IdentityElement, <span class="tok-comment">// 10 - small-order A</span> </span> <span class="line" id="L610"> },</span> <span class="line" id="L611"> Vec{</span> <span class="line" id="L612"> .msg_hex = <span class="tok-str">"39a591f5321bbe07fd5a23dc2f39d025d74526615746727ceefd6e82ae65c06f"</span>,</span> <span class="line" id="L613"> .public_key_hex = <span class="tok-str">"ecffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"</span>,</span> <span class="line" id="L614"> .sig_hex = <span class="tok-str">"a9d55260f765261eb9b84e106f665e00b867287a761990d7135963ee0a7d59dca5bb704786be79fc476f91d3f3f89b03984d8068dcf1bb7dfc6637b45450ac04"</span>,</span> <span class="line" id="L615"> .expected = <span class="tok-kw">error</span>.IdentityElement, <span class="tok-comment">// 11 - small-order A</span> </span> <span class="line" id="L616"> },</span> <span class="line" id="L617"> };</span> <span class="line" id="L618"> <span class="tok-kw">for</span> (entries) \|entry\| {</span> <span class="line" id="L619"> <span class="tok-kw">var</span> msg: [<span class="tok-number">64</span> / <span class="tok-number">2</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L620"> _ = <span class="tok-kw">try</span> fmt.hexToBytes(&msg, entry.msg_hex);</span> <span class="line" id="L621"> <span class="tok-kw">var</span> public_key_bytes: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L622"> _ = <span class="tok-kw">try</span> fmt.hexToBytes(&public_key_bytes, entry.public_key_hex);</span> <span class="line" id="L623"> <span class="tok-kw">const</span> public_key = Ed25519.PublicKey.fromBytes(public_key_bytes) <span class="tok-kw">catch</span> \|err\| {</span> <span class="line" id="L624"> <span class="tok-kw">try</span> std.testing.expectEqual(entry.expected.?, err);</span> <span class="line" id="L625"> <span class="tok-kw">continue</span>;</span> <span class="line" id="L626"> };</span> <span class="line" id="L627"> <span class="tok-kw">var</span> sig_bytes: [<span class="tok-number">64</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L628"> _ = <span class="tok-kw">try</span> fmt.hexToBytes(&sig_bytes, entry.sig_hex);</span> <span class="line" id="L629"> <span class="tok-kw">const</span> sig = Ed25519.Signature.fromBytes(sig_bytes);</span> <span class="line" id="L630"> <span class="tok-kw">if</span> (entry.expected) \|error_type\| {</span> <span class="line" id="L631"> <span class="tok-kw">try</span> std.testing.expectError(error_type, sig.verify(&msg, public_key));</span> <span class="line" id="L632"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L633"> <span class="tok-kw">try</span> sig.verify(&msg, public_key);</span> <span class="line" id="L634"> }</span> <span class="line" id="L635"> }</span> <span class="line" id="L636">}</span> <span class="line" id="L637"></span> <span class="line" id="L638"><span class="tok-kw">test</span> <span class="tok-str">"ed25519 with blind keys"</span> {</span> <span class="line" id="L639"> <span class="tok-kw">const</span> BlindKeyPair = Ed25519.key_blinding.BlindKeyPair;</span> <span class="line" id="L640"></span> <span class="line" id="L641"> <span class="tok-comment">// Create a standard Ed25519 key pair</span> </span> <span class="line" id="L642"> <span class="tok-kw">const</span> kp = <span class="tok-kw">try</span> Ed25519.KeyPair.create(<span class="tok-null">null</span>);</span> <span class="line" id="L643"></span> <span class="line" id="L644"> <span class="tok-comment">// Create a random blinding seed</span> </span> <span class="line" id="L645"> <span class="tok-kw">var</span> blind: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L646"> crypto.random.bytes(&blind);</span> <span class="line" id="L647"></span> <span class="line" id="L648"> <span class="tok-comment">// Blind the key pair</span> </span> <span class="line" id="L649"> <span class="tok-kw">const</span> blind_kp = <span class="tok-kw">try</span> BlindKeyPair.init(kp, blind, <span class="tok-str">"ctx"</span>);</span> <span class="line" id="L650"></span> <span class="line" id="L651"> <span class="tok-comment">// Sign a message and check that it can be verified with the blind public key</span> </span> <span class="line" id="L652"> <span class="tok-kw">const</span> msg = <span class="tok-str">"test"</span>;</span> <span class="line" id="L653"> <span class="tok-kw">const</span> sig = <span class="tok-kw">try</span> blind_kp.sign(msg, <span class="tok-null">null</span>);</span> <span class="line" id="L654"> <span class="tok-kw">try</span> sig.verify(msg, blind_kp.blind_public_key.key);</span> <span class="line" id="L655"></span> <span class="line" id="L656"> <span class="tok-comment">// Unblind the public key</span> </span> <span class="line" id="L657"> <span class="tok-kw">const</span> pk = <span class="tok-kw">try</span> blind_kp.blind_public_key.unblind(blind, <span class="tok-str">"ctx"</span>);</span> <span class="line" id="L658"> <span class="tok-kw">try</span> std.testing.expectEqualSlices(<span class="tok-type">u8</span>, &pk.toBytes(), &kp.public_key.toBytes());</span> <span class="line" id="L659">}</span> <span class="line" id="L660"></span> <span class="line" id="L661"><span class="tok-kw">test</span> <span class="tok-str">"ed25519 signatures with streaming"</span> {</span> <span class="line" id="L662"> <span class="tok-kw">const</span> kp = <span class="tok-kw">try</span> Ed25519.KeyPair.create(<span class="tok-null">null</span>);</span> <span class="line" id="L663"></span> <span class="line" id="L664"> <span class="tok-kw">var</span> signer = <span class="tok-kw">try</span> kp.signer(<span class="tok-null">null</span>);</span> <span class="line" id="L665"> signer.update(<span class="tok-str">"mes"</span>);</span> <span class="line" id="L666"> signer.update(<span class="tok-str">"sage"</span>);</span> <span class="line" id="L667"> <span class="tok-kw">const</span> sig = signer.finalize();</span> <span class="line" id="L668"></span> <span class="line" id="L669"> <span class="tok-kw">try</span> sig.verify(<span class="tok-str">"message"</span>, kp.public_key);</span> <span class="line" id="L670"></span> <span class="line" id="L671"> <span class="tok-kw">var</span> verifier = <span class="tok-kw">try</span> sig.verifier(kp.public_key);</span> <span class="line" id="L672"> verifier.update(<span class="tok-str">"mess"</span>);</span> <span class="line" id="L673"> verifier.update(<span class="tok-str">"age"</span>);</span> <span class="line" id="L674"> <span class="tok-kw">try</span> verifier.verify();</span> <span class="line" id="L675">}</span> <span class="line" id="L676"></span> <span class="line" id="L677"><span class="tok-kw">test</span> <span class="tok-str">"ed25519 key pair from secret key"</span> {</span> <span class="line" id="L678"> <span class="tok-kw">const</span> kp = <span class="tok-kw">try</span> Ed25519.KeyPair.create(<span class="tok-null">null</span>);</span> <span class="line" id="L679"> <span class="tok-kw">const</span> kp2 = <span class="tok-kw">try</span> Ed25519.KeyPair.fromSecretKey(kp.secret_key);</span> <span class="line" id="L680"> <span class="tok-kw">try</span> std.testing.expectEqualSlices(<span class="tok-type">u8</span>, &kp.secret_key.toBytes(), &kp2.secret_key.toBytes());</span> <span class="line" id="L681"> <span class="tok-kw">try</span> std.testing.expectEqualSlices(<span class="tok-type">u8</span>, &kp.public_key.toBytes(), &kp2.public_key.toBytes());</span> <span class="line" id="L682">}</span> <span class="line" id="L683"></span> </code></pre></body> </html>
repos/yazap/docs/src/std/crypto	repos/yazap/docs/src/std/crypto/25519/x25519.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>crypto/25519/x25519.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> crypto = std.crypto;</span> <span class="line" id="L3"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L4"><span class="tok-kw">const</span> fmt = std.fmt;</span> <span class="line" id="L5"></span> <span class="line" id="L6"><span class="tok-kw">const</span> Sha512 = crypto.hash.sha2.Sha512;</span> <span class="line" id="L7"></span> <span class="line" id="L8"><span class="tok-kw">const</span> EncodingError = crypto.errors.EncodingError;</span> <span class="line" id="L9"><span class="tok-kw">const</span> IdentityElementError = crypto.errors.IdentityElementError;</span> <span class="line" id="L10"><span class="tok-kw">const</span> WeakPublicKeyError = crypto.errors.WeakPublicKeyError;</span> <span class="line" id="L11"></span> <span class="line" id="L12"><span class="tok-comment">/// X25519 DH function.</span></span> <span class="line" id="L13"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> X25519 = <span class="tok-kw">struct</span> {</span> <span class="line" id="L14"> <span class="tok-comment">/// The underlying elliptic curve.</span></span> <span class="line" id="L15"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Curve = <span class="tok-builtin">@import</span>(<span class="tok-str">"curve25519.zig"</span>).Curve25519;</span> <span class="line" id="L16"> <span class="tok-comment">/// Length (in bytes) of a secret key.</span></span> <span class="line" id="L17"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> secret_length = <span class="tok-number">32</span>;</span> <span class="line" id="L18"> <span class="tok-comment">/// Length (in bytes) of a public key.</span></span> <span class="line" id="L19"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> public_length = <span class="tok-number">32</span>;</span> <span class="line" id="L20"> <span class="tok-comment">/// Length (in bytes) of the output of the DH function.</span></span> <span class="line" id="L21"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> shared_length = <span class="tok-number">32</span>;</span> <span class="line" id="L22"> <span class="tok-comment">/// Seed (for key pair creation) length in bytes.</span></span> <span class="line" id="L23"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> seed_length = <span class="tok-number">32</span>;</span> <span class="line" id="L24"></span> <span class="line" id="L25"> <span class="tok-comment">/// An X25519 key pair.</span></span> <span class="line" id="L26"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> KeyPair = <span class="tok-kw">struct</span> {</span> <span class="line" id="L27"> <span class="tok-comment">/// Public part.</span></span> <span class="line" id="L28"> public_key: [public_length]<span class="tok-type">u8</span>,</span> <span class="line" id="L29"> <span class="tok-comment">/// Secret part.</span></span> <span class="line" id="L30"> secret_key: [secret_length]<span class="tok-type">u8</span>,</span> <span class="line" id="L31"></span> <span class="line" id="L32"> <span class="tok-comment">/// Create a new key pair using an optional seed.</span></span> <span class="line" id="L33"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">create</span>(seed: ?[seed_length]<span class="tok-type">u8</span>) IdentityElementError!KeyPair {</span> <span class="line" id="L34"> <span class="tok-kw">const</span> sk = seed <span class="tok-kw">orelse</span> sk: {</span> <span class="line" id="L35"> <span class="tok-kw">var</span> random_seed: [seed_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L36"> crypto.random.bytes(&random_seed);</span> <span class="line" id="L37"> <span class="tok-kw">break</span> :sk random_seed;</span> <span class="line" id="L38"> };</span> <span class="line" id="L39"> <span class="tok-kw">var</span> kp: KeyPair = <span class="tok-null">undefined</span>;</span> <span class="line" id="L40"> kp.secret_key = sk;</span> <span class="line" id="L41"> kp.public_key = <span class="tok-kw">try</span> X25519.recoverPublicKey(sk);</span> <span class="line" id="L42"> <span class="tok-kw">return</span> kp;</span> <span class="line" id="L43"> }</span> <span class="line" id="L44"></span> <span class="line" id="L45"> <span class="tok-comment">/// Create a key pair from an Ed25519 key pair</span></span> <span class="line" id="L46"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromEd25519</span>(ed25519_key_pair: crypto.sign.Ed25519.KeyPair) (IdentityElementError \|\| EncodingError)!KeyPair {</span> <span class="line" id="L47"> <span class="tok-kw">const</span> seed = ed25519_key_pair.secret_key.seed();</span> <span class="line" id="L48"> <span class="tok-kw">var</span> az: [Sha512.digest_length]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L49"> Sha512.hash(&seed, &az, .{});</span> <span class="line" id="L50"> <span class="tok-kw">var</span> sk = az[<span class="tok-number">0</span>..<span class="tok-number">32</span>].;</span> <span class="line" id="L51"> Curve.scalar.clamp(&sk);</span> <span class="line" id="L52"> <span class="tok-kw">const</span> pk = <span class="tok-kw">try</span> publicKeyFromEd25519(ed25519_key_pair.public_key);</span> <span class="line" id="L53"> <span class="tok-kw">return</span> KeyPair{</span> <span class="line" id="L54"> .public_key = pk,</span> <span class="line" id="L55"> .secret_key = sk,</span> <span class="line" id="L56"> };</span> <span class="line" id="L57"> }</span> <span class="line" id="L58"> };</span> <span class="line" id="L59"></span> <span class="line" id="L60"> <span class="tok-comment">/// Compute the public key for a given private key.</span></span> <span class="line" id="L61"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">recoverPublicKey</span>(secret_key: [secret_length]<span class="tok-type">u8</span>) IdentityElementError![public_length]<span class="tok-type">u8</span> {</span> <span class="line" id="L62"> <span class="tok-kw">const</span> q = <span class="tok-kw">try</span> Curve.basePoint.clampedMul(secret_key);</span> <span class="line" id="L63"> <span class="tok-kw">return</span> q.toBytes();</span> <span class="line" id="L64"> }</span> <span class="line" id="L65"></span> <span class="line" id="L66"> <span class="tok-comment">/// Compute the X25519 equivalent to an Ed25519 public eky.</span></span> <span class="line" id="L67"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">publicKeyFromEd25519</span>(ed25519_public_key: crypto.sign.Ed25519.PublicKey) (IdentityElementError \|\| EncodingError)![public_length]<span class="tok-type">u8</span> {</span> <span class="line" id="L68"> <span class="tok-kw">const</span> pk_ed = <span class="tok-kw">try</span> crypto.ecc.Edwards25519.fromBytes(ed25519_public_key.bytes);</span> <span class="line" id="L69"> <span class="tok-kw">const</span> pk = <span class="tok-kw">try</span> Curve.fromEdwards25519(pk_ed);</span> <span class="line" id="L70"> <span class="tok-kw">return</span> pk.toBytes();</span> <span class="line" id="L71"> }</span> <span class="line" id="L72"></span> <span class="line" id="L73"> <span class="tok-comment">/// Compute the scalar product of a public key and a secret scalar.</span></span> <span class="line" id="L74"> <span class="tok-comment">/// Note that the output should not be used as a shared secret without</span></span> <span class="line" id="L75"> <span class="tok-comment">/// hashing it first.</span></span> <span class="line" id="L76"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">scalarmult</span>(secret_key: [secret_length]<span class="tok-type">u8</span>, public_key: [public_length]<span class="tok-type">u8</span>) IdentityElementError![shared_length]<span class="tok-type">u8</span> {</span> <span class="line" id="L77"> <span class="tok-kw">const</span> q = <span class="tok-kw">try</span> Curve.fromBytes(public_key).clampedMul(secret_key);</span> <span class="line" id="L78"> <span class="tok-kw">return</span> q.toBytes();</span> <span class="line" id="L79"> }</span> <span class="line" id="L80">};</span> <span class="line" id="L81"></span> <span class="line" id="L82"><span class="tok-kw">const</span> htest = <span class="tok-builtin">@import</span>(<span class="tok-str">"../test.zig"</span>);</span> <span class="line" id="L83"></span> <span class="line" id="L84"><span class="tok-kw">test</span> <span class="tok-str">"x25519 public key calculation from secret key"</span> {</span> <span class="line" id="L85"> <span class="tok-kw">var</span> sk: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L86"> <span class="tok-kw">var</span> pk_expected: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L87"> _ = <span class="tok-kw">try</span> fmt.hexToBytes(sk[<span class="tok-number">0</span>..], <span class="tok-str">"8052030376d47112be7f73ed7a019293dd12ad910b654455798b4667d73de166"</span>);</span> <span class="line" id="L88"> _ = <span class="tok-kw">try</span> fmt.hexToBytes(pk_expected[<span class="tok-number">0</span>..], <span class="tok-str">"f1814f0e8ff1043d8a44d25babff3cedcae6c22c3edaa48f857ae70de2baae50"</span>);</span> <span class="line" id="L89"> <span class="tok-kw">const</span> pk_calculated = <span class="tok-kw">try</span> X25519.recoverPublicKey(sk);</span> <span class="line" id="L90"> <span class="tok-kw">try</span> std.testing.expectEqual(pk_calculated, pk_expected);</span> <span class="line" id="L91">}</span> <span class="line" id="L92"></span> <span class="line" id="L93"><span class="tok-kw">test</span> <span class="tok-str">"x25519 rfc7748 vector1"</span> {</span> <span class="line" id="L94"> <span class="tok-kw">const</span> secret_key = [<span class="tok-number">32</span>]<span class="tok-type">u8</span>{ <span class="tok-number">0xa5</span>, <span class="tok-number">0x46</span>, <span class="tok-number">0xe3</span>, <span class="tok-number">0x6b</span>, <span class="tok-number">0xf0</span>, <span class="tok-number">0x52</span>, <span class="tok-number">0x7c</span>, <span class="tok-number">0x9d</span>, <span class="tok-number">0x3b</span>, <span class="tok-number">0x16</span>, <span class="tok-number">0x15</span>, <span class="tok-number">0x4b</span>, <span class="tok-number">0x82</span>, <span class="tok-number">0x46</span>, <span class="tok-number">0x5e</span>, <span class="tok-number">0xdd</span>, <span class="tok-number">0x62</span>, <span class="tok-number">0x14</span>, <span class="tok-number">0x4c</span>, <span class="tok-number">0x0a</span>, <span class="tok-number">0xc1</span>, <span class="tok-number">0xfc</span>, <span class="tok-number">0x5a</span>, <span class="tok-number">0x18</span>, <span class="tok-number">0x50</span>, <span class="tok-number">0x6a</span>, <span class="tok-number">0x22</span>, <span class="tok-number">0x44</span>, <span class="tok-number">0xba</span>, <span class="tok-number">0x44</span>, <span class="tok-number">0x9a</span>, <span class="tok-number">0xc4</span> };</span> <span class="line" id="L95"> <span class="tok-kw">const</span> public_key = [<span class="tok-number">32</span>]<span class="tok-type">u8</span>{ <span class="tok-number">0xe6</span>, <span class="tok-number">0xdb</span>, <span class="tok-number">0x68</span>, <span class="tok-number">0x67</span>, <span class="tok-number">0x58</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0xdb</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x94</span>, <span class="tok-number">0xc1</span>, <span class="tok-number">0xa4</span>, <span class="tok-number">0x24</span>, <span class="tok-number">0xb1</span>, <span class="tok-number">0x5f</span>, <span class="tok-number">0x7c</span>, <span class="tok-number">0x72</span>, <span class="tok-number">0x66</span>, <span class="tok-number">0x24</span>, <span class="tok-number">0xec</span>, <span class="tok-number">0x26</span>, <span class="tok-number">0xb3</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x3b</span>, <span class="tok-number">0x10</span>, <span class="tok-number">0xa9</span>, <span class="tok-number">0x03</span>, <span class="tok-number">0xa6</span>, <span class="tok-number">0xd0</span>, <span class="tok-number">0xab</span>, <span class="tok-number">0x1c</span>, <span class="tok-number">0x4c</span> };</span> <span class="line" id="L96"></span> <span class="line" id="L97"> <span class="tok-kw">const</span> expected_output = [<span class="tok-number">32</span>]<span class="tok-type">u8</span>{ <span class="tok-number">0xc3</span>, <span class="tok-number">0xda</span>, <span class="tok-number">0x55</span>, <span class="tok-number">0x37</span>, <span class="tok-number">0x9d</span>, <span class="tok-number">0xe9</span>, <span class="tok-number">0xc6</span>, <span class="tok-number">0x90</span>, <span class="tok-number">0x8e</span>, <span class="tok-number">0x94</span>, <span class="tok-number">0xea</span>, <span class="tok-number">0x4d</span>, <span class="tok-number">0xf2</span>, <span class="tok-number">0x8d</span>, <span class="tok-number">0x08</span>, <span class="tok-number">0x4f</span>, <span class="tok-number">0x32</span>, <span class="tok-number">0xec</span>, <span class="tok-number">0xcf</span>, <span class="tok-number">0x03</span>, <span class="tok-number">0x49</span>, <span class="tok-number">0x1c</span>, <span class="tok-number">0x71</span>, <span class="tok-number">0xf7</span>, <span class="tok-number">0x54</span>, <span class="tok-number">0xb4</span>, <span class="tok-number">0x07</span>, <span class="tok-number">0x55</span>, <span class="tok-number">0x77</span>, <span class="tok-number">0xa2</span>, <span class="tok-number">0x85</span>, <span class="tok-number">0x52</span> };</span> <span class="line" id="L98"></span> <span class="line" id="L99"> <span class="tok-kw">const</span> output = <span class="tok-kw">try</span> X25519.scalarmult(secret_key, public_key);</span> <span class="line" id="L100"> <span class="tok-kw">try</span> std.testing.expectEqual(output, expected_output);</span> <span class="line" id="L101">}</span> <span class="line" id="L102"></span> <span class="line" id="L103"><span class="tok-kw">test</span> <span class="tok-str">"x25519 rfc7748 vector2"</span> {</span> <span class="line" id="L104"> <span class="tok-kw">const</span> secret_key = [<span class="tok-number">32</span>]<span class="tok-type">u8</span>{ <span class="tok-number">0x4b</span>, <span class="tok-number">0x66</span>, <span class="tok-number">0xe9</span>, <span class="tok-number">0xd4</span>, <span class="tok-number">0xd1</span>, <span class="tok-number">0xb4</span>, <span class="tok-number">0x67</span>, <span class="tok-number">0x3c</span>, <span class="tok-number">0x5a</span>, <span class="tok-number">0xd2</span>, <span class="tok-number">0x26</span>, <span class="tok-number">0x91</span>, <span class="tok-number">0x95</span>, <span class="tok-number">0x7d</span>, <span class="tok-number">0x6a</span>, <span class="tok-number">0xf5</span>, <span class="tok-number">0xc1</span>, <span class="tok-number">0x1b</span>, <span class="tok-number">0x64</span>, <span class="tok-number">0x21</span>, <span class="tok-number">0xe0</span>, <span class="tok-number">0xea</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0xd4</span>, <span class="tok-number">0x2c</span>, <span class="tok-number">0xa4</span>, <span class="tok-number">0x16</span>, <span class="tok-number">0x9e</span>, <span class="tok-number">0x79</span>, <span class="tok-number">0x18</span>, <span class="tok-number">0xba</span>, <span class="tok-number">0x0d</span> };</span> <span class="line" id="L105"> <span class="tok-kw">const</span> public_key = [<span class="tok-number">32</span>]<span class="tok-type">u8</span>{ <span class="tok-number">0xe5</span>, <span class="tok-number">0x21</span>, <span class="tok-number">0x0f</span>, <span class="tok-number">0x12</span>, <span class="tok-number">0x78</span>, <span class="tok-number">0x68</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0xd3</span>, <span class="tok-number">0xf4</span>, <span class="tok-number">0xb7</span>, <span class="tok-number">0x95</span>, <span class="tok-number">0x9d</span>, <span class="tok-number">0x05</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0xae</span>, <span class="tok-number">0x2c</span>, <span class="tok-number">0x31</span>, <span class="tok-number">0xdb</span>, <span class="tok-number">0xe7</span>, <span class="tok-number">0x10</span>, <span class="tok-number">0x6f</span>, <span class="tok-number">0xc0</span>, <span class="tok-number">0x3c</span>, <span class="tok-number">0x3e</span>, <span class="tok-number">0xfc</span>, <span class="tok-number">0x4c</span>, <span class="tok-number">0xd5</span>, <span class="tok-number">0x49</span>, <span class="tok-number">0xc7</span>, <span class="tok-number">0x15</span>, <span class="tok-number">0xa4</span>, <span class="tok-number">0x93</span> };</span> <span class="line" id="L106"></span> <span class="line" id="L107"> <span class="tok-kw">const</span> expected_output = [<span class="tok-number">32</span>]<span class="tok-type">u8</span>{ <span class="tok-number">0x95</span>, <span class="tok-number">0xcb</span>, <span class="tok-number">0xde</span>, <span class="tok-number">0x94</span>, <span class="tok-number">0x76</span>, <span class="tok-number">0xe8</span>, <span class="tok-number">0x90</span>, <span class="tok-number">0x7d</span>, <span class="tok-number">0x7a</span>, <span class="tok-number">0xad</span>, <span class="tok-number">0xe4</span>, <span class="tok-number">0x5c</span>, <span class="tok-number">0xb4</span>, <span class="tok-number">0xb8</span>, <span class="tok-number">0x73</span>, <span class="tok-number">0xf8</span>, <span class="tok-number">0x8b</span>, <span class="tok-number">0x59</span>, <span class="tok-number">0x5a</span>, <span class="tok-number">0x68</span>, <span class="tok-number">0x79</span>, <span class="tok-number">0x9f</span>, <span class="tok-number">0xa1</span>, <span class="tok-number">0x52</span>, <span class="tok-number">0xe6</span>, <span class="tok-number">0xf8</span>, <span class="tok-number">0xf7</span>, <span class="tok-number">0x64</span>, <span class="tok-number">0x7a</span>, <span class="tok-number">0xac</span>, <span class="tok-number">0x79</span>, <span class="tok-number">0x57</span> };</span> <span class="line" id="L108"></span> <span class="line" id="L109"> <span class="tok-kw">const</span> output = <span class="tok-kw">try</span> X25519.scalarmult(secret_key, public_key);</span> <span class="line" id="L110"> <span class="tok-kw">try</span> std.testing.expectEqual(output, expected_output);</span> <span class="line" id="L111">}</span> <span class="line" id="L112"></span> <span class="line" id="L113"><span class="tok-kw">test</span> <span class="tok-str">"x25519 rfc7748 one iteration"</span> {</span> <span class="line" id="L114"> <span class="tok-kw">const</span> initial_value = [<span class="tok-number">32</span>]<span class="tok-type">u8</span>{ <span class="tok-number">0x09</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span> };</span> <span class="line" id="L115"> <span class="tok-kw">const</span> expected_output = [<span class="tok-number">32</span>]<span class="tok-type">u8</span>{ <span class="tok-number">0x42</span>, <span class="tok-number">0x2c</span>, <span class="tok-number">0x8e</span>, <span class="tok-number">0x7a</span>, <span class="tok-number">0x62</span>, <span class="tok-number">0x27</span>, <span class="tok-number">0xd7</span>, <span class="tok-number">0xbc</span>, <span class="tok-number">0xa1</span>, <span class="tok-number">0x35</span>, <span class="tok-number">0x0b</span>, <span class="tok-number">0x3e</span>, <span class="tok-number">0x2b</span>, <span class="tok-number">0xb7</span>, <span class="tok-number">0x27</span>, <span class="tok-number">0x9f</span>, <span class="tok-number">0x78</span>, <span class="tok-number">0x97</span>, <span class="tok-number">0xb8</span>, <span class="tok-number">0x7b</span>, <span class="tok-number">0xb6</span>, <span class="tok-number">0x85</span>, <span class="tok-number">0x4b</span>, <span class="tok-number">0x78</span>, <span class="tok-number">0x3c</span>, <span class="tok-number">0x60</span>, <span class="tok-number">0xe8</span>, <span class="tok-number">0x03</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0xae</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0x79</span> };</span> <span class="line" id="L116"></span> <span class="line" id="L117"> <span class="tok-kw">var</span> k: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = initial_value;</span> <span class="line" id="L118"> <span class="tok-kw">var</span> u: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = initial_value;</span> <span class="line" id="L119"></span> <span class="line" id="L120"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L121"> <span class="tok-kw">while</span> (i < <span class="tok-number">1</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L122"> <span class="tok-kw">const</span> output = <span class="tok-kw">try</span> X25519.scalarmult(k, u);</span> <span class="line" id="L123"> u = k;</span> <span class="line" id="L124"> k = output;</span> <span class="line" id="L125"> }</span> <span class="line" id="L126"></span> <span class="line" id="L127"> <span class="tok-kw">try</span> std.testing.expectEqual(k, expected_output);</span> <span class="line" id="L128">}</span> <span class="line" id="L129"></span> <span class="line" id="L130"><span class="tok-kw">test</span> <span class="tok-str">"x25519 rfc7748 1,000 iterations"</span> {</span> <span class="line" id="L131"> <span class="tok-comment">// These iteration tests are slow so we always skip them. Results have been verified.</span> </span> <span class="line" id="L132"> <span class="tok-kw">if</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L133"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SkipZigTest;</span> <span class="line" id="L134"> }</span> <span class="line" id="L135"></span> <span class="line" id="L136"> <span class="tok-kw">const</span> initial_value = [<span class="tok-number">32</span>]<span class="tok-type">u8</span>{ <span class="tok-number">0x09</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span> };</span> <span class="line" id="L137"> <span class="tok-kw">const</span> expected_output = [<span class="tok-number">32</span>]<span class="tok-type">u8</span>{ <span class="tok-number">0x68</span>, <span class="tok-number">0x4c</span>, <span class="tok-number">0xf5</span>, <span class="tok-number">0x9b</span>, <span class="tok-number">0xa8</span>, <span class="tok-number">0x33</span>, <span class="tok-number">0x09</span>, <span class="tok-number">0x55</span>, <span class="tok-number">0x28</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0xef</span>, <span class="tok-number">0x56</span>, <span class="tok-number">0x6f</span>, <span class="tok-number">0x2f</span>, <span class="tok-number">0x4d</span>, <span class="tok-number">0x3c</span>, <span class="tok-number">0x1c</span>, <span class="tok-number">0x38</span>, <span class="tok-number">0x87</span>, <span class="tok-number">0xc4</span>, <span class="tok-number">0x93</span>, <span class="tok-number">0x60</span>, <span class="tok-number">0xe3</span>, <span class="tok-number">0x87</span>, <span class="tok-number">0x5f</span>, <span class="tok-number">0x2e</span>, <span class="tok-number">0xb9</span>, <span class="tok-number">0x4d</span>, <span class="tok-number">0x99</span>, <span class="tok-number">0x53</span>, <span class="tok-number">0x2c</span>, <span class="tok-number">0x51</span> };</span> <span class="line" id="L138"></span> <span class="line" id="L139"> <span class="tok-kw">var</span> k: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = initial_value.;</span> <span class="line" id="L140"> <span class="tok-kw">var</span> u: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = initial_value.;</span> <span class="line" id="L141"></span> <span class="line" id="L142"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L143"> <span class="tok-kw">while</span> (i < <span class="tok-number">1000</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L144"> <span class="tok-kw">const</span> output = <span class="tok-kw">try</span> X25519.scalarmult(&k, &u);</span> <span class="line" id="L145"> u = k;</span> <span class="line" id="L146"> k = output;</span> <span class="line" id="L147"> }</span> <span class="line" id="L148"></span> <span class="line" id="L149"> <span class="tok-kw">try</span> std.testing.expectEqual(k, expected_output);</span> <span class="line" id="L150">}</span> <span class="line" id="L151"></span> <span class="line" id="L152"><span class="tok-kw">test</span> <span class="tok-str">"x25519 rfc7748 1,000,000 iterations"</span> {</span> <span class="line" id="L153"> <span class="tok-kw">if</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L154"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SkipZigTest;</span> <span class="line" id="L155"> }</span> <span class="line" id="L156"></span> <span class="line" id="L157"> <span class="tok-kw">const</span> initial_value = [<span class="tok-number">32</span>]<span class="tok-type">u8</span>{ <span class="tok-number">0x09</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span>, <span class="tok-number">0x00</span> };</span> <span class="line" id="L158"> <span class="tok-kw">const</span> expected_output = [<span class="tok-number">32</span>]<span class="tok-type">u8</span>{ <span class="tok-number">0x7c</span>, <span class="tok-number">0x39</span>, <span class="tok-number">0x11</span>, <span class="tok-number">0xe0</span>, <span class="tok-number">0xab</span>, <span class="tok-number">0x25</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0xfd</span>, <span class="tok-number">0x86</span>, <span class="tok-number">0x44</span>, <span class="tok-number">0x97</span>, <span class="tok-number">0x29</span>, <span class="tok-number">0x7e</span>, <span class="tok-number">0x57</span>, <span class="tok-number">0x5e</span>, <span class="tok-number">0x6f</span>, <span class="tok-number">0x3b</span>, <span class="tok-number">0xc6</span>, <span class="tok-number">0x01</span>, <span class="tok-number">0xc0</span>, <span class="tok-number">0x88</span>, <span class="tok-number">0x3c</span>, <span class="tok-number">0x30</span>, <span class="tok-number">0xdf</span>, <span class="tok-number">0x5f</span>, <span class="tok-number">0x4d</span>, <span class="tok-number">0xd2</span>, <span class="tok-number">0xd2</span>, <span class="tok-number">0x4f</span>, <span class="tok-number">0x66</span>, <span class="tok-number">0x54</span>, <span class="tok-number">0x24</span> };</span> <span class="line" id="L159"></span> <span class="line" id="L160"> <span class="tok-kw">var</span> k: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = initial_value.;</span> <span class="line" id="L161"> <span class="tok-kw">var</span> u: [<span class="tok-number">32</span>]<span class="tok-type">u8</span> = initial_value.;</span> <span class="line" id="L162"></span> <span class="line" id="L163"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L164"> <span class="tok-kw">while</span> (i < <span class="tok-number">1000000</span>) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L165"> <span class="tok-kw">const</span> output = <span class="tok-kw">try</span> X25519.scalarmult(&k, &u);</span> <span class="line" id="L166"> u = k;</span> <span class="line" id="L167"> k = output;</span> <span class="line" id="L168"> }</span> <span class="line" id="L169"></span> <span class="line" id="L170"> <span class="tok-kw">try</span> std.testing.expectEqual(k[<span class="tok-number">0</span>..], expected_output);</span> <span class="line" id="L171">}</span> <span class="line" id="L172"></span> <span class="line" id="L173"><span class="tok-kw">test</span> <span class="tok-str">"edwards25519 -> curve25519 map"</span> {</span> <span class="line" id="L174"> <span class="tok-kw">const</span> ed_kp = <span class="tok-kw">try</span> crypto.sign.Ed25519.KeyPair.create([_]<span class="tok-type">u8</span>{<span class="tok-number">0x42</span>} * <span class="tok-number">32</span>);</span> <span class="line" id="L175"> <span class="tok-kw">const</span> mont_kp = <span class="tok-kw">try</span> X25519.KeyPair.fromEd25519(ed_kp);</span> <span class="line" id="L176"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"90e7595fc89e52fdfddce9c6a43d74dbf6047025ee0462d2d172e8b6a2841d6e"</span>, &mont_kp.secret_key);</span> <span class="line" id="L177"> <span class="tok-kw">try</span> htest.assertEqual(<span class="tok-str">"cc4f2cdb695dd766f34118eb67b98652fed1d8bc49c330b119bbfa8a64989378"</span>, &mont_kp.public_key);</span> <span class="line" id="L178">}</span> <span class="line" id="L179"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/fs/watch.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>fs/watch.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> builtin = <span class="tok-builtin">@import</span>(<span class="tok-str">"builtin"</span>);</span> <span class="line" id="L3"><span class="tok-kw">const</span> event = std.event;</span> <span class="line" id="L4"><span class="tok-kw">const</span> assert = std.debug.assert;</span> <span class="line" id="L5"><span class="tok-kw">const</span> testing = std.testing;</span> <span class="line" id="L6"><span class="tok-kw">const</span> os = std.os;</span> <span class="line" id="L7"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L8"><span class="tok-kw">const</span> windows = os.windows;</span> <span class="line" id="L9"><span class="tok-kw">const</span> Loop = event.Loop;</span> <span class="line" id="L10"><span class="tok-kw">const</span> fd_t = os.fd_t;</span> <span class="line" id="L11"><span class="tok-kw">const</span> File = std.fs.File;</span> <span class="line" id="L12"><span class="tok-kw">const</span> Allocator = mem.Allocator;</span> <span class="line" id="L13"></span> <span class="line" id="L14"><span class="tok-kw">const</span> global_event_loop = Loop.instance <span class="tok-kw">orelse</span></span> <span class="line" id="L15"> <span class="tok-builtin">@compileError</span>(<span class="tok-str">"std.fs.Watch currently only works with event-based I/O"</span>);</span> <span class="line" id="L16"></span> <span class="line" id="L17"><span class="tok-kw">const</span> WatchEventId = <span class="tok-kw">enum</span> {</span> <span class="line" id="L18"> CloseWrite,</span> <span class="line" id="L19"> Delete,</span> <span class="line" id="L20">};</span> <span class="line" id="L21"></span> <span class="line" id="L22"><span class="tok-kw">const</span> WatchEventError = <span class="tok-kw">error</span>{</span> <span class="line" id="L23"> UserResourceLimitReached,</span> <span class="line" id="L24"> SystemResources,</span> <span class="line" id="L25"> AccessDenied,</span> <span class="line" id="L26"> Unexpected, <span class="tok-comment">// TODO remove this possibility</span> </span> <span class="line" id="L27">};</span> <span class="line" id="L28"></span> <span class="line" id="L29"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">Watch</span>(<span class="tok-kw">comptime</span> V: <span class="tok-type">type</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L30"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L31"> channel: event.Channel(Event.Error!Event),</span> <span class="line" id="L32"> os_data: OsData,</span> <span class="line" id="L33"> allocator: Allocator,</span> <span class="line" id="L34"></span> <span class="line" id="L35"> <span class="tok-kw">const</span> OsData = <span class="tok-kw">switch</span> (builtin.os.tag) {</span> <span class="line" id="L36"> <span class="tok-comment">// TODO https://github.com/ziglang/zig/issues/3778</span> </span> <span class="line" id="L37"> .macos, .freebsd, .netbsd, .dragonfly, .openbsd => KqOsData,</span> <span class="line" id="L38"> .linux => LinuxOsData,</span> <span class="line" id="L39"> .windows => WindowsOsData,</span> <span class="line" id="L40"></span> <span class="line" id="L41"> <span class="tok-kw">else</span> => <span class="tok-builtin">@compileError</span>(<span class="tok-str">"Unsupported OS"</span>),</span> <span class="line" id="L42"> };</span> <span class="line" id="L43"></span> <span class="line" id="L44"> <span class="tok-kw">const</span> KqOsData = <span class="tok-kw">struct</span> {</span> <span class="line" id="L45"> table_lock: event.Lock,</span> <span class="line" id="L46"> file_table: FileTable,</span> <span class="line" id="L47"></span> <span class="line" id="L48"> <span class="tok-kw">const</span> FileTable = std.StringHashMapUnmanaged(Put);</span> <span class="line" id="L49"> <span class="tok-kw">const</span> Put = <span class="tok-kw">struct</span> {</span> <span class="line" id="L50"> putter_frame: <span class="tok-builtin">@Frame</span>(kqPutEvents),</span> <span class="line" id="L51"> cancelled: <span class="tok-type">bool</span> = <span class="tok-null">false</span>,</span> <span class="line" id="L52"> value: V,</span> <span class="line" id="L53"> };</span> <span class="line" id="L54"> };</span> <span class="line" id="L55"></span> <span class="line" id="L56"> <span class="tok-kw">const</span> WindowsOsData = <span class="tok-kw">struct</span> {</span> <span class="line" id="L57"> table_lock: event.Lock,</span> <span class="line" id="L58"> dir_table: DirTable,</span> <span class="line" id="L59"> cancelled: <span class="tok-type">bool</span> = <span class="tok-null">false</span>,</span> <span class="line" id="L60"></span> <span class="line" id="L61"> <span class="tok-kw">const</span> DirTable = std.StringHashMapUnmanaged(Dir);</span> <span class="line" id="L62"> <span class="tok-kw">const</span> FileTable = std.StringHashMapUnmanaged(V);</span> <span class="line" id="L63"></span> <span class="line" id="L64"> <span class="tok-kw">const</span> Dir = <span class="tok-kw">struct</span> {</span> <span class="line" id="L65"> putter_frame: <span class="tok-builtin">@Frame</span>(windowsDirReader),</span> <span class="line" id="L66"> file_table: FileTable,</span> <span class="line" id="L67"> dir_handle: os.windows.HANDLE,</span> <span class="line" id="L68"> };</span> <span class="line" id="L69"> };</span> <span class="line" id="L70"></span> <span class="line" id="L71"> <span class="tok-kw">const</span> LinuxOsData = <span class="tok-kw">struct</span> {</span> <span class="line" id="L72"> putter_frame: <span class="tok-builtin">@Frame</span>(linuxEventPutter),</span> <span class="line" id="L73"> inotify_fd: <span class="tok-type">i32</span>,</span> <span class="line" id="L74"> wd_table: WdTable,</span> <span class="line" id="L75"> table_lock: event.Lock,</span> <span class="line" id="L76"> cancelled: <span class="tok-type">bool</span> = <span class="tok-null">false</span>,</span> <span class="line" id="L77"></span> <span class="line" id="L78"> <span class="tok-kw">const</span> WdTable = std.AutoHashMapUnmanaged(<span class="tok-type">i32</span>, Dir);</span> <span class="line" id="L79"> <span class="tok-kw">const</span> FileTable = std.StringHashMapUnmanaged(V);</span> <span class="line" id="L80"></span> <span class="line" id="L81"> <span class="tok-kw">const</span> Dir = <span class="tok-kw">struct</span> {</span> <span class="line" id="L82"> dirname: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L83"> file_table: FileTable,</span> <span class="line" id="L84"> };</span> <span class="line" id="L85"> };</span> <span class="line" id="L86"></span> <span class="line" id="L87"> <span class="tok-kw">const</span> Self = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L88"></span> <span class="line" id="L89"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Event = <span class="tok-kw">struct</span> {</span> <span class="line" id="L90"> id: Id,</span> <span class="line" id="L91"> data: V,</span> <span class="line" id="L92"> dirname: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L93"> basename: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L94"></span> <span class="line" id="L95"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Id = WatchEventId;</span> <span class="line" id="L96"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Error = WatchEventError;</span> <span class="line" id="L97"> };</span> <span class="line" id="L98"></span> <span class="line" id="L99"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">init</span>(allocator: Allocator, event_buf_count: <span class="tok-type">usize</span>) !Self {</span> <span class="line" id="L100"> <span class="tok-kw">const</span> self = <span class="tok-kw">try</span> allocator.create(Self);</span> <span class="line" id="L101"> <span class="tok-kw">errdefer</span> allocator.destroy(self);</span> <span class="line" id="L102"></span> <span class="line" id="L103"> <span class="tok-kw">switch</span> (builtin.os.tag) {</span> <span class="line" id="L104"> .linux => {</span> <span class="line" id="L105"> <span class="tok-kw">const</span> inotify_fd = <span class="tok-kw">try</span> os.inotify_init1(os.linux.IN_NONBLOCK \| os.linux.IN_CLOEXEC);</span> <span class="line" id="L106"> <span class="tok-kw">errdefer</span> os.close(inotify_fd);</span> <span class="line" id="L107"></span> <span class="line" id="L108"> self. = Self{</span> <span class="line" id="L109"> .allocator = allocator,</span> <span class="line" id="L110"> .channel = <span class="tok-null">undefined</span>,</span> <span class="line" id="L111"> .os_data = OsData{</span> <span class="line" id="L112"> .putter_frame = <span class="tok-null">undefined</span>,</span> <span class="line" id="L113"> .inotify_fd = inotify_fd,</span> <span class="line" id="L114"> .wd_table = OsData.WdTable.init(allocator),</span> <span class="line" id="L115"> .table_lock = event.Lock{},</span> <span class="line" id="L116"> },</span> <span class="line" id="L117"> };</span> <span class="line" id="L118"></span> <span class="line" id="L119"> <span class="tok-kw">var</span> buf = <span class="tok-kw">try</span> allocator.alloc(Event.Error!Event, event_buf_count);</span> <span class="line" id="L120"> self.channel.init(buf);</span> <span class="line" id="L121"> self.os_data.putter_frame = <span class="tok-kw">async</span> self.linuxEventPutter();</span> <span class="line" id="L122"> <span class="tok-kw">return</span> self;</span> <span class="line" id="L123"> },</span> <span class="line" id="L124"></span> <span class="line" id="L125"> .windows => {</span> <span class="line" id="L126"> self.* = Self{</span> <span class="line" id="L127"> .allocator = allocator,</span> <span class="line" id="L128"> .channel = <span class="tok-null">undefined</span>,</span> <span class="line" id="L129"> .os_data = OsData{</span> <span class="line" id="L130"> .table_lock = event.Lock{},</span> <span class="line" id="L131"> .dir_table = OsData.DirTable.init(allocator),</span> <span class="line" id="L132"> },</span> <span class="line" id="L133"> };</span> <span class="line" id="L134"></span> <span class="line" id="L135"> <span class="tok-kw">var</span> buf = <span class="tok-kw">try</span> allocator.alloc(Event.Error!Event, event_buf_count);</span> <span class="line" id="L136"> self.channel.init(buf);</span> <span class="line" id="L137"> <span class="tok-kw">return</span> self;</span> <span class="line" id="L138"> },</span> <span class="line" id="L139"></span> <span class="line" id="L140"> .macos, .freebsd, .netbsd, .dragonfly, .openbsd => {</span> <span class="line" id="L141"> self.* = Self{</span> <span class="line" id="L142"> .allocator = allocator,</span> <span class="line" id="L143"> .channel = <span class="tok-null">undefined</span>,</span> <span class="line" id="L144"> .os_data = OsData{</span> <span class="line" id="L145"> .table_lock = event.Lock{},</span> <span class="line" id="L146"> .file_table = OsData.FileTable.init(allocator),</span> <span class="line" id="L147"> },</span> <span class="line" id="L148"> };</span> <span class="line" id="L149"></span> <span class="line" id="L150"> <span class="tok-kw">var</span> buf = <span class="tok-kw">try</span> allocator.alloc(Event.Error!Event, event_buf_count);</span> <span class="line" id="L151"> self.channel.init(buf);</span> <span class="line" id="L152"> <span class="tok-kw">return</span> self;</span> <span class="line" id="L153"> },</span> <span class="line" id="L154"> <span class="tok-kw">else</span> => <span class="tok-builtin">@compileError</span>(<span class="tok-str">"Unsupported OS"</span>),</span> <span class="line" id="L155"> }</span> <span class="line" id="L156"> }</span> <span class="line" id="L157"></span> <span class="line" id="L158"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">deinit</span>(self: Self) <span class="tok-type">void</span> {</span> <span class="line" id="L159"> <span class="tok-kw">switch</span> (builtin.os.tag) {</span> <span class="line" id="L160"> .macos, .freebsd, .netbsd, .dragonfly, .openbsd => {</span> <span class="line" id="L161"> <span class="tok-kw">var</span> it = self.os_data.file_table.iterator();</span> <span class="line" id="L162"> <span class="tok-kw">while</span> (it.next()) \|entry\| {</span> <span class="line" id="L163"> <span class="tok-kw">const</span> key = entry.key_ptr.;</span> <span class="line" id="L164"> <span class="tok-kw">const</span> value = entry.value_ptr.;</span> <span class="line" id="L165"> value.cancelled = <span class="tok-null">true</span>;</span> <span class="line" id="L166"> <span class="tok-comment">// @TODO Close the fd here?</span> </span> <span class="line" id="L167"> <span class="tok-kw">await</span> value.putter_frame;</span> <span class="line" id="L168"> self.allocator.free(key);</span> <span class="line" id="L169"> self.allocator.destroy(value);</span> <span class="line" id="L170"> }</span> <span class="line" id="L171"> },</span> <span class="line" id="L172"> .linux => {</span> <span class="line" id="L173"> self.os_data.cancelled = <span class="tok-null">true</span>;</span> <span class="line" id="L174"> {</span> <span class="line" id="L175"> <span class="tok-comment">// Remove all directory watches linuxEventPutter will take care of</span> </span> <span class="line" id="L176"> <span class="tok-comment">// cleaning up the memory and closing the inotify fd.</span> </span> <span class="line" id="L177"> <span class="tok-kw">var</span> dir_it = self.os_data.wd_table.keyIterator();</span> <span class="line" id="L178"> <span class="tok-kw">while</span> (dir_it.next()) \|wd_key\| {</span> <span class="line" id="L179"> <span class="tok-kw">const</span> rc = os.linux.inotify_rm_watch(self.os_data.inotify_fd, wd_key.);</span> <span class="line" id="L180"> <span class="tok-comment">// Errno can only be EBADF, EINVAL if either the inotify fs or the wd are invalid</span> </span> <span class="line" id="L181"> std.debug.assert(rc == <span class="tok-number">0</span>);</span> <span class="line" id="L182"> }</span> <span class="line" id="L183"> }</span> <span class="line" id="L184"> <span class="tok-kw">await</span> self.os_data.putter_frame;</span> <span class="line" id="L185"> },</span> <span class="line" id="L186"> .windows => {</span> <span class="line" id="L187"> self.os_data.cancelled = <span class="tok-null">true</span>;</span> <span class="line" id="L188"> <span class="tok-kw">var</span> dir_it = self.os_data.dir_table.iterator();</span> <span class="line" id="L189"> <span class="tok-kw">while</span> (dir_it.next()) \|dir_entry\| {</span> <span class="line" id="L190"> <span class="tok-kw">if</span> (windows.kernel32.CancelIoEx(dir_entry.value.dir_handle, <span class="tok-null">null</span>) != <span class="tok-number">0</span>) {</span> <span class="line" id="L191"> <span class="tok-comment">// We canceled the pending ReadDirectoryChangesW operation, but our</span> </span> <span class="line" id="L192"> <span class="tok-comment">// frame is still suspending, now waiting indefinitely.</span> </span> <span class="line" id="L193"> <span class="tok-comment">// Thus, it is safe to resume it ourslves</span> </span> <span class="line" id="L194"> <span class="tok-kw">resume</span> dir_entry.value.putter_frame;</span> <span class="line" id="L195"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L196"> std.debug.assert(windows.kernel32.GetLastError() == .NOT_FOUND);</span> <span class="line" id="L197"> <span class="tok-comment">// We are at another suspend point, we can await safely for the</span> </span> <span class="line" id="L198"> <span class="tok-comment">// function to exit the loop</span> </span> <span class="line" id="L199"> <span class="tok-kw">await</span> dir_entry.value.putter_frame;</span> <span class="line" id="L200"> }</span> <span class="line" id="L201"></span> <span class="line" id="L202"> self.allocator.free(dir_entry.key_ptr.);</span> <span class="line" id="L203"> <span class="tok-kw">var</span> file_it = dir_entry.value.file_table.keyIterator();</span> <span class="line" id="L204"> <span class="tok-kw">while</span> (file_it.next()) \|file_entry\| {</span> <span class="line" id="L205"> self.allocator.free(file_entry.);</span> <span class="line" id="L206"> }</span> <span class="line" id="L207"> dir_entry.value.file_table.deinit(self.allocator);</span> <span class="line" id="L208"> self.allocator.destroy(dir_entry.value_ptr.);</span> <span class="line" id="L209"> }</span> <span class="line" id="L210"> self.os_data.dir_table.deinit(self.allocator);</span> <span class="line" id="L211"> },</span> <span class="line" id="L212"> <span class="tok-kw">else</span> => <span class="tok-builtin">@compileError</span>(<span class="tok-str">"Unsupported OS"</span>),</span> <span class="line" id="L213"> }</span> <span class="line" id="L214"> self.allocator.free(self.channel.buffer_nodes);</span> <span class="line" id="L215"> self.channel.deinit();</span> <span class="line" id="L216"> self.allocator.destroy(self);</span> <span class="line" id="L217"> }</span> <span class="line" id="L218"></span> <span class="line" id="L219"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">addFile</span>(self: Self, file_path: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, value: V) !?V {</span> <span class="line" id="L220"> <span class="tok-kw">switch</span> (builtin.os.tag) {</span> <span class="line" id="L221"> .macos, .freebsd, .netbsd, .dragonfly, .openbsd => <span class="tok-kw">return</span> addFileKEvent(self, file_path, value),</span> <span class="line" id="L222"> .linux => <span class="tok-kw">return</span> addFileLinux(self, file_path, value),</span> <span class="line" id="L223"> .windows => <span class="tok-kw">return</span> addFileWindows(self, file_path, value),</span> <span class="line" id="L224"> <span class="tok-kw">else</span> => <span class="tok-builtin">@compileError</span>(<span class="tok-str">"Unsupported OS"</span>),</span> <span class="line" id="L225"> }</span> <span class="line" id="L226"> }</span> <span class="line" id="L227"></span> <span class="line" id="L228"> <span class="tok-kw">fn</span> <span class="tok-fn">addFileKEvent</span>(self: Self, file_path: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, value: V) !?V {</span> <span class="line" id="L229"> <span class="tok-kw">var</span> realpath_buf: [std.fs.MAX_PATH_BYTES]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L230"> <span class="tok-kw">const</span> realpath = <span class="tok-kw">try</span> os.realpath(file_path, &realpath_buf);</span> <span class="line" id="L231"></span> <span class="line" id="L232"> <span class="tok-kw">const</span> held = self.os_data.table_lock.acquire();</span> <span class="line" id="L233"> <span class="tok-kw">defer</span> held.release();</span> <span class="line" id="L234"></span> <span class="line" id="L235"> <span class="tok-kw">const</span> gop = <span class="tok-kw">try</span> self.os_data.file_table.getOrPut(self.allocator, realpath);</span> <span class="line" id="L236"> <span class="tok-kw">errdefer</span> assert(self.os_data.file_table.remove(realpath));</span> <span class="line" id="L237"> <span class="tok-kw">if</span> (gop.found_existing) {</span> <span class="line" id="L238"> <span class="tok-kw">const</span> prev_value = gop.value_ptr.value;</span> <span class="line" id="L239"> gop.value_ptr.value = value;</span> <span class="line" id="L240"> <span class="tok-kw">return</span> prev_value;</span> <span class="line" id="L241"> }</span> <span class="line" id="L242"></span> <span class="line" id="L243"> gop.key_ptr. = <span class="tok-kw">try</span> self.allocator.dupe(<span class="tok-type">u8</span>, realpath);</span> <span class="line" id="L244"> <span class="tok-kw">errdefer</span> self.allocator.free(gop.key_ptr.);</span> <span class="line" id="L245"> gop.value_ptr. = <span class="tok-kw">try</span> self.allocator.create(OsData.Put);</span> <span class="line" id="L246"> <span class="tok-kw">errdefer</span> self.allocator.destroy(gop.value_ptr.);</span> <span class="line" id="L247"> gop.value_ptr. = .{</span> <span class="line" id="L248"> .putter_frame = <span class="tok-null">undefined</span>,</span> <span class="line" id="L249"> .value = value,</span> <span class="line" id="L250"> };</span> <span class="line" id="L251"></span> <span class="line" id="L252"> <span class="tok-comment">// @TODO Can I close this fd and get an error from bsdWaitKev?</span> </span> <span class="line" id="L253"> <span class="tok-kw">const</span> flags = <span class="tok-kw">if</span> (<span class="tok-kw">comptime</span> builtin.target.isDarwin()) os.O.SYMLINK \| os.O.EVTONLY <span class="tok-kw">else</span> <span class="tok-number">0</span>;</span> <span class="line" id="L254"> <span class="tok-kw">const</span> fd = <span class="tok-kw">try</span> os.open(realpath, flags, <span class="tok-number">0</span>);</span> <span class="line" id="L255"> gop.value_ptr.putter_frame = <span class="tok-kw">async</span> self.kqPutEvents(fd, gop.key_ptr., gop.value_ptr.);</span> <span class="line" id="L256"> <span class="tok-kw">return</span> <span class="tok-null">null</span>;</span> <span class="line" id="L257"> }</span> <span class="line" id="L258"></span> <span class="line" id="L259"> <span class="tok-kw">fn</span> <span class="tok-fn">kqPutEvents</span>(self: Self, fd: os.fd_t, file_path: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, put: OsData.Put) <span class="tok-type">void</span> {</span> <span class="line" id="L260"> global_event_loop.beginOneEvent();</span> <span class="line" id="L261"> <span class="tok-kw">defer</span> {</span> <span class="line" id="L262"> global_event_loop.finishOneEvent();</span> <span class="line" id="L263"> <span class="tok-comment">// @TODO: Remove this if we force close otherwise</span> </span> <span class="line" id="L264"> os.close(fd);</span> <span class="line" id="L265"> }</span> <span class="line" id="L266"></span> <span class="line" id="L267"> <span class="tok-comment">// We need to manually do a bsdWaitKev to access the fflags.</span> </span> <span class="line" id="L268"> <span class="tok-kw">var</span> resume_node = event.Loop.ResumeNode.Basic{</span> <span class="line" id="L269"> .base = .{</span> <span class="line" id="L270"> .id = .Basic,</span> <span class="line" id="L271"> .handle = <span class="tok-builtin">@frame</span>(),</span> <span class="line" id="L272"> .overlapped = event.Loop.ResumeNode.overlapped_init,</span> <span class="line" id="L273"> },</span> <span class="line" id="L274"> .kev = <span class="tok-null">undefined</span>,</span> <span class="line" id="L275"> };</span> <span class="line" id="L276"></span> <span class="line" id="L277"> <span class="tok-kw">var</span> kevs = [<span class="tok-number">1</span>]os.Kevent{<span class="tok-null">undefined</span>};</span> <span class="line" id="L278"> <span class="tok-kw">const</span> kev = &kevs[<span class="tok-number">0</span>];</span> <span class="line" id="L279"></span> <span class="line" id="L280"> <span class="tok-kw">while</span> (!put.cancelled) {</span> <span class="line" id="L281"> kev.* = os.Kevent{</span> <span class="line" id="L282"> .ident = <span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(fd)),</span> <span class="line" id="L283"> .filter = os.EVFILT_VNODE,</span> <span class="line" id="L284"> .flags = os.EV_ADD \| os.EV_ENABLE \| os.EV_CLEAR \| os.EV_ONESHOT \|</span> <span class="line" id="L285"> os.NOTE_WRITE \| os.NOTE_DELETE \| os.NOTE_REVOKE,</span> <span class="line" id="L286"> .fflags = <span class="tok-number">0</span>,</span> <span class="line" id="L287"> .data = <span class="tok-number">0</span>,</span> <span class="line" id="L288"> .udata = <span class="tok-builtin">@intFromPtr</span>(&resume_node.base),</span> <span class="line" id="L289"> };</span> <span class="line" id="L290"> <span class="tok-kw">suspend</span> {</span> <span class="line" id="L291"> global_event_loop.beginOneEvent();</span> <span class="line" id="L292"> <span class="tok-kw">errdefer</span> global_event_loop.finishOneEvent();</span> <span class="line" id="L293"></span> <span class="line" id="L294"> <span class="tok-kw">const</span> empty_kevs = &[<span class="tok-number">0</span>]os.Kevent{};</span> <span class="line" id="L295"> _ = os.kevent(global_event_loop.os_data.kqfd, &kevs, empty_kevs, <span class="tok-null">null</span>) <span class="tok-kw">catch</span> \|err\| <span class="tok-kw">switch</span> (err) {</span> <span class="line" id="L296"> <span class="tok-kw">error</span>.EventNotFound,</span> <span class="line" id="L297"> <span class="tok-kw">error</span>.ProcessNotFound,</span> <span class="line" id="L298"> <span class="tok-kw">error</span>.Overflow,</span> <span class="line" id="L299"> => <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L300"> <span class="tok-kw">error</span>.AccessDenied, <span class="tok-kw">error</span>.SystemResources => \|e\| {</span> <span class="line" id="L301"> self.channel.put(e);</span> <span class="line" id="L302"> <span class="tok-kw">continue</span>;</span> <span class="line" id="L303"> },</span> <span class="line" id="L304"> };</span> <span class="line" id="L305"> }</span> <span class="line" id="L306"></span> <span class="line" id="L307"> <span class="tok-kw">if</span> (kev.flags & os.EV_ERROR != <span class="tok-number">0</span>) {</span> <span class="line" id="L308"> self.channel.put(os.unexpectedErrno(os.errno(kev.data)));</span> <span class="line" id="L309"> <span class="tok-kw">continue</span>;</span> <span class="line" id="L310"> }</span> <span class="line" id="L311"></span> <span class="line" id="L312"> <span class="tok-kw">if</span> (kev.fflags & os.NOTE_DELETE != <span class="tok-number">0</span> <span class="tok-kw">or</span> kev.fflags & os.NOTE_REVOKE != <span class="tok-number">0</span>) {</span> <span class="line" id="L313"> self.channel.put(Self.Event{</span> <span class="line" id="L314"> .id = .Delete,</span> <span class="line" id="L315"> .data = put.value,</span> <span class="line" id="L316"> .dirname = std.fs.path.dirname(file_path) <span class="tok-kw">orelse</span> <span class="tok-str">"/"</span>,</span> <span class="line" id="L317"> .basename = std.fs.path.basename(file_path),</span> <span class="line" id="L318"> });</span> <span class="line" id="L319"> } <span class="tok-kw">else</span> <span class="tok-kw">if</span> (kev.fflags & os.NOTE_WRITE != <span class="tok-number">0</span>) {</span> <span class="line" id="L320"> self.channel.put(Self.Event{</span> <span class="line" id="L321"> .id = .CloseWrite,</span> <span class="line" id="L322"> .data = put.value,</span> <span class="line" id="L323"> .dirname = std.fs.path.dirname(file_path) <span class="tok-kw">orelse</span> <span class="tok-str">"/"</span>,</span> <span class="line" id="L324"> .basename = std.fs.path.basename(file_path),</span> <span class="line" id="L325"> });</span> <span class="line" id="L326"> }</span> <span class="line" id="L327"> }</span> <span class="line" id="L328"> }</span> <span class="line" id="L329"></span> <span class="line" id="L330"> <span class="tok-kw">fn</span> <span class="tok-fn">addFileLinux</span>(self: Self, file_path: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, value: V) !?V {</span> <span class="line" id="L331"> <span class="tok-kw">const</span> dirname = std.fs.path.dirname(file_path) <span class="tok-kw">orelse</span> <span class="tok-kw">if</span> (file_path[<span class="tok-number">0</span>] == <span class="tok-str">'/'</span>) <span class="tok-str">"/"</span> <span class="tok-kw">else</span> <span class="tok-str">"."</span>;</span> <span class="line" id="L332"> <span class="tok-kw">const</span> basename = std.fs.path.basename(file_path);</span> <span class="line" id="L333"></span> <span class="line" id="L334"> <span class="tok-kw">const</span> wd = <span class="tok-kw">try</span> os.inotify_add_watch(</span> <span class="line" id="L335"> self.os_data.inotify_fd,</span> <span class="line" id="L336"> dirname,</span> <span class="line" id="L337"> os.linux.IN_CLOSE_WRITE \| os.linux.IN_ONLYDIR \| os.linux.IN_DELETE \| os.linux.IN_EXCL_UNLINK,</span> <span class="line" id="L338"> );</span> <span class="line" id="L339"> <span class="tok-comment">// wd is either a newly created watch or an existing one.</span> </span> <span class="line" id="L340"></span> <span class="line" id="L341"> <span class="tok-kw">const</span> held = self.os_data.table_lock.acquire();</span> <span class="line" id="L342"> <span class="tok-kw">defer</span> held.release();</span> <span class="line" id="L343"></span> <span class="line" id="L344"> <span class="tok-kw">const</span> gop = <span class="tok-kw">try</span> self.os_data.wd_table.getOrPut(self.allocator, wd);</span> <span class="line" id="L345"> <span class="tok-kw">errdefer</span> assert(self.os_data.wd_table.remove(wd));</span> <span class="line" id="L346"> <span class="tok-kw">if</span> (!gop.found_existing) {</span> <span class="line" id="L347"> gop.value_ptr. = OsData.Dir{</span> <span class="line" id="L348"> .dirname = <span class="tok-kw">try</span> self.allocator.dupe(<span class="tok-type">u8</span>, dirname),</span> <span class="line" id="L349"> .file_table = OsData.FileTable.init(self.allocator),</span> <span class="line" id="L350"> };</span> <span class="line" id="L351"> }</span> <span class="line" id="L352"></span> <span class="line" id="L353"> <span class="tok-kw">const</span> dir = gop.value_ptr;</span> <span class="line" id="L354"> <span class="tok-kw">const</span> file_table_gop = <span class="tok-kw">try</span> dir.file_table.getOrPut(self.allocator, basename);</span> <span class="line" id="L355"> <span class="tok-kw">errdefer</span> assert(dir.file_table.remove(basename));</span> <span class="line" id="L356"> <span class="tok-kw">if</span> (file_table_gop.found_existing) {</span> <span class="line" id="L357"> <span class="tok-kw">const</span> prev_value = file_table_gop.value_ptr.;</span> <span class="line" id="L358"> file_table_gop.value_ptr. = value;</span> <span class="line" id="L359"> <span class="tok-kw">return</span> prev_value;</span> <span class="line" id="L360"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L361"> file_table_gop.key_ptr.* = <span class="tok-kw">try</span> self.allocator.dupe(<span class="tok-type">u8</span>, basename);</span> <span class="line" id="L362"> file_table_gop.value_ptr.* = value;</span> <span class="line" id="L363"> <span class="tok-kw">return</span> <span class="tok-null">null</span>;</span> <span class="line" id="L364"> }</span> <span class="line" id="L365"> }</span> <span class="line" id="L366"></span> <span class="line" id="L367"> <span class="tok-kw">fn</span> <span class="tok-fn">addFileWindows</span>(self: Self, file_path: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, value: V) !?V {</span> <span class="line" id="L368"> <span class="tok-comment">// TODO we might need to convert dirname and basename to canonical file paths ("short"?)</span> </span> <span class="line" id="L369"> <span class="tok-kw">const</span> dirname = std.fs.path.dirname(file_path) <span class="tok-kw">orelse</span> <span class="tok-kw">if</span> (file_path[<span class="tok-number">0</span>] == <span class="tok-str">'/'</span>) <span class="tok-str">"/"</span> <span class="tok-kw">else</span> <span class="tok-str">"."</span>;</span> <span class="line" id="L370"> <span class="tok-kw">var</span> dirname_path_space: windows.PathSpace = <span class="tok-null">undefined</span>;</span> <span class="line" id="L371"> dirname_path_space.len = <span class="tok-kw">try</span> std.unicode.utf8ToUtf16Le(&dirname_path_space.data, dirname);</span> <span class="line" id="L372"> dirname_path_space.data[dirname_path_space.len] = <span class="tok-number">0</span>;</span> <span class="line" id="L373"></span> <span class="line" id="L374"> <span class="tok-kw">const</span> basename = std.fs.path.basename(file_path);</span> <span class="line" id="L375"> <span class="tok-kw">var</span> basename_path_space: windows.PathSpace = <span class="tok-null">undefined</span>;</span> <span class="line" id="L376"> basename_path_space.len = <span class="tok-kw">try</span> std.unicode.utf8ToUtf16Le(&basename_path_space.data, basename);</span> <span class="line" id="L377"> basename_path_space.data[basename_path_space.len] = <span class="tok-number">0</span>;</span> <span class="line" id="L378"></span> <span class="line" id="L379"> <span class="tok-kw">const</span> held = self.os_data.table_lock.acquire();</span> <span class="line" id="L380"> <span class="tok-kw">defer</span> held.release();</span> <span class="line" id="L381"></span> <span class="line" id="L382"> <span class="tok-kw">const</span> gop = <span class="tok-kw">try</span> self.os_data.dir_table.getOrPut(self.allocator, dirname);</span> <span class="line" id="L383"> <span class="tok-kw">errdefer</span> assert(self.os_data.dir_table.remove(dirname));</span> <span class="line" id="L384"> <span class="tok-kw">if</span> (gop.found_existing) {</span> <span class="line" id="L385"> <span class="tok-kw">const</span> dir = gop.value_ptr.;</span> <span class="line" id="L386"></span> <span class="line" id="L387"> <span class="tok-kw">const</span> file_gop = <span class="tok-kw">try</span> dir.file_table.getOrPut(self.allocator, basename);</span> <span class="line" id="L388"> <span class="tok-kw">errdefer</span> assert(dir.file_table.remove(basename));</span> <span class="line" id="L389"> <span class="tok-kw">if</span> (file_gop.found_existing) {</span> <span class="line" id="L390"> <span class="tok-kw">const</span> prev_value = file_gop.value_ptr.;</span> <span class="line" id="L391"> file_gop.value_ptr. = value;</span> <span class="line" id="L392"> <span class="tok-kw">return</span> prev_value;</span> <span class="line" id="L393"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L394"> file_gop.value_ptr.* = value;</span> <span class="line" id="L395"> file_gop.key_ptr.* = <span class="tok-kw">try</span> self.allocator.dupe(<span class="tok-type">u8</span>, basename);</span> <span class="line" id="L396"> <span class="tok-kw">return</span> <span class="tok-null">null</span>;</span> <span class="line" id="L397"> }</span> <span class="line" id="L398"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L399"> <span class="tok-kw">const</span> dir_handle = <span class="tok-kw">try</span> windows.OpenFile(dirname_path_space.span(), .{</span> <span class="line" id="L400"> .dir = std.fs.cwd().fd,</span> <span class="line" id="L401"> .access_mask = windows.FILE_LIST_DIRECTORY,</span> <span class="line" id="L402"> .creation = windows.FILE_OPEN,</span> <span class="line" id="L403"> .io_mode = .evented,</span> <span class="line" id="L404"> .filter = .dir_only,</span> <span class="line" id="L405"> });</span> <span class="line" id="L406"> <span class="tok-kw">errdefer</span> windows.CloseHandle(dir_handle);</span> <span class="line" id="L407"></span> <span class="line" id="L408"> <span class="tok-kw">const</span> dir = <span class="tok-kw">try</span> self.allocator.create(OsData.Dir);</span> <span class="line" id="L409"> <span class="tok-kw">errdefer</span> self.allocator.destroy(dir);</span> <span class="line" id="L410"></span> <span class="line" id="L411"> gop.key_ptr.* = <span class="tok-kw">try</span> self.allocator.dupe(<span class="tok-type">u8</span>, dirname);</span> <span class="line" id="L412"> <span class="tok-kw">errdefer</span> self.allocator.free(gop.key_ptr.);</span> <span class="line" id="L413"></span> <span class="line" id="L414"> dir. = OsData.Dir{</span> <span class="line" id="L415"> .file_table = OsData.FileTable.init(self.allocator),</span> <span class="line" id="L416"> .putter_frame = <span class="tok-null">undefined</span>,</span> <span class="line" id="L417"> .dir_handle = dir_handle,</span> <span class="line" id="L418"> };</span> <span class="line" id="L419"> gop.value_ptr.* = dir;</span> <span class="line" id="L420"> <span class="tok-kw">try</span> dir.file_table.put(self.allocator, <span class="tok-kw">try</span> self.allocator.dupe(<span class="tok-type">u8</span>, basename), value);</span> <span class="line" id="L421"> dir.putter_frame = <span class="tok-kw">async</span> self.windowsDirReader(dir, gop.key_ptr.);</span> <span class="line" id="L422"> <span class="tok-kw">return</span> <span class="tok-null">null</span>;</span> <span class="line" id="L423"> }</span> <span class="line" id="L424"> }</span> <span class="line" id="L425"></span> <span class="line" id="L426"> <span class="tok-kw">fn</span> <span class="tok-fn">windowsDirReader</span>(self: Self, dir: OsData.Dir, dirname: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L427"> <span class="tok-kw">defer</span> os.close(dir.dir_handle);</span> <span class="line" id="L428"> <span class="tok-kw">var</span> resume_node = Loop.ResumeNode.Basic{</span> <span class="line" id="L429"> .base = Loop.ResumeNode{</span> <span class="line" id="L430"> .id = .Basic,</span> <span class="line" id="L431"> .handle = <span class="tok-builtin">@frame</span>(),</span> <span class="line" id="L432"> .overlapped = windows.OVERLAPPED{</span> <span class="line" id="L433"> .Internal = <span class="tok-number">0</span>,</span> <span class="line" id="L434"> .InternalHigh = <span class="tok-number">0</span>,</span> <span class="line" id="L435"> .DUMMYUNIONNAME = .{</span> <span class="line" id="L436"> .DUMMYSTRUCTNAME = .{</span> <span class="line" id="L437"> .Offset = <span class="tok-number">0</span>,</span> <span class="line" id="L438"> .OffsetHigh = <span class="tok-number">0</span>,</span> <span class="line" id="L439"> },</span> <span class="line" id="L440"> },</span> <span class="line" id="L441"> .hEvent = <span class="tok-null">null</span>,</span> <span class="line" id="L442"> },</span> <span class="line" id="L443"> },</span> <span class="line" id="L444"> };</span> <span class="line" id="L445"></span> <span class="line" id="L446"> <span class="tok-kw">var</span> event_buf: [<span class="tok-number">4096</span>]<span class="tok-type">u8</span> <span class="tok-kw">align</span>(<span class="tok-builtin">@alignOf</span>(windows.FILE_NOTIFY_INFORMATION)) = <span class="tok-null">undefined</span>;</span> <span class="line" id="L447"></span> <span class="line" id="L448"> global_event_loop.beginOneEvent();</span> <span class="line" id="L449"> <span class="tok-kw">defer</span> global_event_loop.finishOneEvent();</span> <span class="line" id="L450"></span> <span class="line" id="L451"> <span class="tok-kw">while</span> (!self.os_data.cancelled) main_loop: {</span> <span class="line" id="L452"> <span class="tok-kw">suspend</span> {</span> <span class="line" id="L453"> _ = windows.kernel32.ReadDirectoryChangesW(</span> <span class="line" id="L454"> dir.dir_handle,</span> <span class="line" id="L455"> &event_buf,</span> <span class="line" id="L456"> event_buf.len,</span> <span class="line" id="L457"> windows.FALSE, <span class="tok-comment">// watch subtree</span> </span> <span class="line" id="L458"> windows.FILE_NOTIFY_CHANGE_FILE_NAME \| windows.FILE_NOTIFY_CHANGE_DIR_NAME \|</span> <span class="line" id="L459"> windows.FILE_NOTIFY_CHANGE_ATTRIBUTES \| windows.FILE_NOTIFY_CHANGE_SIZE \|</span> <span class="line" id="L460"> windows.FILE_NOTIFY_CHANGE_LAST_WRITE \| windows.FILE_NOTIFY_CHANGE_LAST_ACCESS \|</span> <span class="line" id="L461"> windows.FILE_NOTIFY_CHANGE_CREATION \| windows.FILE_NOTIFY_CHANGE_SECURITY,</span> <span class="line" id="L462"> <span class="tok-null">null</span>, <span class="tok-comment">// number of bytes transferred (unused for async)</span> </span> <span class="line" id="L463"> &resume_node.base.overlapped,</span> <span class="line" id="L464"> <span class="tok-null">null</span>, <span class="tok-comment">// completion routine - unused because we use IOCP</span> </span> <span class="line" id="L465"> );</span> <span class="line" id="L466"> }</span> <span class="line" id="L467"></span> <span class="line" id="L468"> <span class="tok-kw">var</span> bytes_transferred: windows.DWORD = <span class="tok-null">undefined</span>;</span> <span class="line" id="L469"> <span class="tok-kw">if</span> (windows.kernel32.GetOverlappedResult(</span> <span class="line" id="L470"> dir.dir_handle,</span> <span class="line" id="L471"> &resume_node.base.overlapped,</span> <span class="line" id="L472"> &bytes_transferred,</span> <span class="line" id="L473"> windows.FALSE,</span> <span class="line" id="L474"> ) == <span class="tok-number">0</span>) {</span> <span class="line" id="L475"> <span class="tok-kw">const</span> potential_error = windows.kernel32.GetLastError();</span> <span class="line" id="L476"> <span class="tok-kw">const</span> err = <span class="tok-kw">switch</span> (potential_error) {</span> <span class="line" id="L477"> .OPERATION_ABORTED, .IO_INCOMPLETE => err_blk: {</span> <span class="line" id="L478"> <span class="tok-kw">if</span> (self.os_data.cancelled)</span> <span class="line" id="L479"> <span class="tok-kw">break</span> :main_loop</span> <span class="line" id="L480"> <span class="tok-kw">else</span></span> <span class="line" id="L481"> <span class="tok-kw">break</span> :err_blk windows.unexpectedError(potential_error);</span> <span class="line" id="L482"> },</span> <span class="line" id="L483"> <span class="tok-kw">else</span> => \|err\| windows.unexpectedError(err),</span> <span class="line" id="L484"> };</span> <span class="line" id="L485"> self.channel.put(err);</span> <span class="line" id="L486"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L487"> <span class="tok-kw">var</span> ptr: []<span class="tok-type">u8</span> = &event_buf;</span> <span class="line" id="L488"> <span class="tok-kw">const</span> end_ptr = ptr + bytes_transferred;</span> <span class="line" id="L489"> <span class="tok-kw">while</span> (<span class="tok-builtin">@intFromPtr</span>(ptr) < <span class="tok-builtin">@intFromPtr</span>(end_ptr)) {</span> <span class="line" id="L490"> <span class="tok-kw">const</span> ev = <span class="tok-builtin">@as</span>(<span class="tok-kw">const</span> windows.FILE_NOTIFY_INFORMATION, <span class="tok-builtin">@ptrCast</span>(ptr));</span> <span class="line" id="L491"> <span class="tok-kw">const</span> emit = <span class="tok-kw">switch</span> (ev.Action) {</span> <span class="line" id="L492"> windows.FILE_ACTION_REMOVED => WatchEventId.Delete,</span> <span class="line" id="L493"> windows.FILE_ACTION_MODIFIED => .CloseWrite,</span> <span class="line" id="L494"> <span class="tok-kw">else</span> => <span class="tok-null">null</span>,</span> <span class="line" id="L495"> };</span> <span class="line" id="L496"> <span class="tok-kw">if</span> (emit) \|id\| {</span> <span class="line" id="L497"> <span class="tok-kw">const</span> basename_ptr = <span class="tok-builtin">@as</span>([]<span class="tok-type">u16</span>, <span class="tok-builtin">@ptrCast</span>(ptr + <span class="tok-builtin">@sizeOf</span>(windows.FILE_NOTIFY_INFORMATION)));</span> <span class="line" id="L498"> <span class="tok-kw">const</span> basename_utf16le = basename_ptr[<span class="tok-number">0</span> .. ev.FileNameLength / <span class="tok-number">2</span>];</span> <span class="line" id="L499"> <span class="tok-kw">var</span> basename_data: [std.fs.MAX_PATH_BYTES]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L500"> <span class="tok-kw">const</span> basename = basename_data[<span class="tok-number">0</span> .. std.unicode.utf16leToUtf8(&basename_data, basename_utf16le) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>];</span> <span class="line" id="L501"></span> <span class="line" id="L502"> <span class="tok-kw">if</span> (dir.file_table.getEntry(basename)) \|entry\| {</span> <span class="line" id="L503"> self.channel.put(Event{</span> <span class="line" id="L504"> .id = id,</span> <span class="line" id="L505"> .data = entry.value_ptr.,</span> <span class="line" id="L506"> .dirname = dirname,</span> <span class="line" id="L507"> .basename = entry.key_ptr.,</span> <span class="line" id="L508"> });</span> <span class="line" id="L509"> }</span> <span class="line" id="L510"> }</span> <span class="line" id="L511"></span> <span class="line" id="L512"> <span class="tok-kw">if</span> (ev.NextEntryOffset == <span class="tok-number">0</span>) <span class="tok-kw">break</span>;</span> <span class="line" id="L513"> ptr = <span class="tok-builtin">@alignCast</span>(ptr + ev.NextEntryOffset);</span> <span class="line" id="L514"> }</span> <span class="line" id="L515"> }</span> <span class="line" id="L516"> }</span> <span class="line" id="L517"> }</span> <span class="line" id="L518"></span> <span class="line" id="L519"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">removeFile</span>(self: Self, file_path: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) !?V {</span> <span class="line" id="L520"> <span class="tok-kw">switch</span> (builtin.os.tag) {</span> <span class="line" id="L521"> .linux => {</span> <span class="line" id="L522"> <span class="tok-kw">const</span> dirname = std.fs.path.dirname(file_path) <span class="tok-kw">orelse</span> <span class="tok-kw">if</span> (file_path[<span class="tok-number">0</span>] == <span class="tok-str">'/'</span>) <span class="tok-str">"/"</span> <span class="tok-kw">else</span> <span class="tok-str">"."</span>;</span> <span class="line" id="L523"> <span class="tok-kw">const</span> basename = std.fs.path.basename(file_path);</span> <span class="line" id="L524"></span> <span class="line" id="L525"> <span class="tok-kw">const</span> held = self.os_data.table_lock.acquire();</span> <span class="line" id="L526"> <span class="tok-kw">defer</span> held.release();</span> <span class="line" id="L527"></span> <span class="line" id="L528"> <span class="tok-kw">const</span> dir = self.os_data.wd_table.get(dirname) <span class="tok-kw">orelse</span> <span class="tok-kw">return</span> <span class="tok-null">null</span>;</span> <span class="line" id="L529"> <span class="tok-kw">if</span> (dir.file_table.fetchRemove(basename)) \|file_entry\| {</span> <span class="line" id="L530"> self.allocator.free(file_entry.key);</span> <span class="line" id="L531"> <span class="tok-kw">return</span> file_entry.value;</span> <span class="line" id="L532"> }</span> <span class="line" id="L533"> <span class="tok-kw">return</span> <span class="tok-null">null</span>;</span> <span class="line" id="L534"> },</span> <span class="line" id="L535"> .windows => {</span> <span class="line" id="L536"> <span class="tok-kw">const</span> dirname = std.fs.path.dirname(file_path) <span class="tok-kw">orelse</span> <span class="tok-kw">if</span> (file_path[<span class="tok-number">0</span>] == <span class="tok-str">'/'</span>) <span class="tok-str">"/"</span> <span class="tok-kw">else</span> <span class="tok-str">"."</span>;</span> <span class="line" id="L537"> <span class="tok-kw">const</span> basename = std.fs.path.basename(file_path);</span> <span class="line" id="L538"></span> <span class="line" id="L539"> <span class="tok-kw">const</span> held = self.os_data.table_lock.acquire();</span> <span class="line" id="L540"> <span class="tok-kw">defer</span> held.release();</span> <span class="line" id="L541"></span> <span class="line" id="L542"> <span class="tok-kw">const</span> dir = self.os_data.dir_table.get(dirname) <span class="tok-kw">orelse</span> <span class="tok-kw">return</span> <span class="tok-null">null</span>;</span> <span class="line" id="L543"> <span class="tok-kw">if</span> (dir.file_table.fetchRemove(basename)) \|file_entry\| {</span> <span class="line" id="L544"> self.allocator.free(file_entry.key);</span> <span class="line" id="L545"> <span class="tok-kw">return</span> file_entry.value;</span> <span class="line" id="L546"> }</span> <span class="line" id="L547"> <span class="tok-kw">return</span> <span class="tok-null">null</span>;</span> <span class="line" id="L548"> },</span> <span class="line" id="L549"> .macos, .freebsd, .netbsd, .dragonfly, .openbsd => {</span> <span class="line" id="L550"> <span class="tok-kw">var</span> realpath_buf: [std.fs.MAX_PATH_BYTES]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L551"> <span class="tok-kw">const</span> realpath = <span class="tok-kw">try</span> os.realpath(file_path, &realpath_buf);</span> <span class="line" id="L552"></span> <span class="line" id="L553"> <span class="tok-kw">const</span> held = self.os_data.table_lock.acquire();</span> <span class="line" id="L554"> <span class="tok-kw">defer</span> held.release();</span> <span class="line" id="L555"></span> <span class="line" id="L556"> <span class="tok-kw">const</span> entry = self.os_data.file_table.getEntry(realpath) <span class="tok-kw">orelse</span> <span class="tok-kw">return</span> <span class="tok-null">null</span>;</span> <span class="line" id="L557"> entry.value_ptr.cancelled = <span class="tok-null">true</span>;</span> <span class="line" id="L558"> <span class="tok-comment">// @TODO Close the fd here?</span> </span> <span class="line" id="L559"> <span class="tok-kw">await</span> entry.value_ptr.putter_frame;</span> <span class="line" id="L560"> self.allocator.free(entry.key_ptr.);</span> <span class="line" id="L561"> self.allocator.destroy(entry.value_ptr.);</span> <span class="line" id="L562"></span> <span class="line" id="L563"> assert(self.os_data.file_table.remove(realpath));</span> <span class="line" id="L564"> },</span> <span class="line" id="L565"> <span class="tok-kw">else</span> => <span class="tok-builtin">@compileError</span>(<span class="tok-str">"Unsupported OS"</span>),</span> <span class="line" id="L566"> }</span> <span class="line" id="L567"> }</span> <span class="line" id="L568"></span> <span class="line" id="L569"> <span class="tok-kw">fn</span> <span class="tok-fn">linuxEventPutter</span>(self: Self) <span class="tok-type">void</span> {</span> <span class="line" id="L570"> global_event_loop.beginOneEvent();</span> <span class="line" id="L571"></span> <span class="line" id="L572"> <span class="tok-kw">defer</span> {</span> <span class="line" id="L573"> std.debug.assert(self.os_data.wd_table.count() == <span class="tok-number">0</span>);</span> <span class="line" id="L574"> self.os_data.wd_table.deinit(self.allocator);</span> <span class="line" id="L575"> os.close(self.os_data.inotify_fd);</span> <span class="line" id="L576"> self.allocator.free(self.channel.buffer_nodes);</span> <span class="line" id="L577"> self.channel.deinit();</span> <span class="line" id="L578"> global_event_loop.finishOneEvent();</span> <span class="line" id="L579"> }</span> <span class="line" id="L580"></span> <span class="line" id="L581"> <span class="tok-kw">var</span> event_buf: [<span class="tok-number">4096</span>]<span class="tok-type">u8</span> <span class="tok-kw">align</span>(<span class="tok-builtin">@alignOf</span>(os.linux.inotify_event)) = <span class="tok-null">undefined</span>;</span> <span class="line" id="L582"></span> <span class="line" id="L583"> <span class="tok-kw">while</span> (!self.os_data.cancelled) {</span> <span class="line" id="L584"> <span class="tok-kw">const</span> bytes_read = global_event_loop.read(self.os_data.inotify_fd, &event_buf, <span class="tok-null">false</span>) <span class="tok-kw">catch</span> <span class="tok-kw">unreachable</span>;</span> <span class="line" id="L585"></span> <span class="line" id="L586"> <span class="tok-kw">var</span> ptr: []<span class="tok-type">u8</span> = &event_buf;</span> <span class="line" id="L587"> <span class="tok-kw">const</span> end_ptr = ptr + bytes_read;</span> <span class="line" id="L588"> <span class="tok-kw">while</span> (<span class="tok-builtin">@intFromPtr</span>(ptr) < <span class="tok-builtin">@intFromPtr</span>(end_ptr)) {</span> <span class="line" id="L589"> <span class="tok-kw">const</span> ev = <span class="tok-builtin">@as</span>(<span class="tok-kw">const</span> os.linux.inotify_event, <span class="tok-builtin">@ptrCast</span>(ptr));</span> <span class="line" id="L590"> <span class="tok-kw">if</span> (ev.mask & os.linux.IN_CLOSE_WRITE == os.linux.IN_CLOSE_WRITE) {</span> <span class="line" id="L591"> <span class="tok-kw">const</span> basename_ptr = ptr + <span class="tok-builtin">@sizeOf</span>(os.linux.inotify_event);</span> <span class="line" id="L592"> <span class="tok-kw">const</span> basename = std.mem.span(<span class="tok-builtin">@as</span>([:<span class="tok-number">0</span>]<span class="tok-type">u8</span>, <span class="tok-builtin">@ptrCast</span>(basename_ptr)));</span> <span class="line" id="L593"></span> <span class="line" id="L594"> <span class="tok-kw">const</span> dir = &self.os_data.wd_table.get(ev.wd).?;</span> <span class="line" id="L595"> <span class="tok-kw">if</span> (dir.file_table.getEntry(basename)) \|file_value\| {</span> <span class="line" id="L596"> self.channel.put(Event{</span> <span class="line" id="L597"> .id = .CloseWrite,</span> <span class="line" id="L598"> .data = file_value.value_ptr.,</span> <span class="line" id="L599"> .dirname = dir.dirname,</span> <span class="line" id="L600"> .basename = file_value.key_ptr.,</span> <span class="line" id="L601"> });</span> <span class="line" id="L602"> }</span> <span class="line" id="L603"> } <span class="tok-kw">else</span> <span class="tok-kw">if</span> (ev.mask & os.linux.IN_IGNORED == os.linux.IN_IGNORED) {</span> <span class="line" id="L604"> <span class="tok-comment">// Directory watch was removed</span> </span> <span class="line" id="L605"> <span class="tok-kw">const</span> held = self.os_data.table_lock.acquire();</span> <span class="line" id="L606"> <span class="tok-kw">defer</span> held.release();</span> <span class="line" id="L607"> <span class="tok-kw">if</span> (self.os_data.wd_table.fetchRemove(ev.wd)) \|wd_entry\| {</span> <span class="line" id="L608"> <span class="tok-kw">var</span> file_it = wd_entry.value.file_table.keyIterator();</span> <span class="line" id="L609"> <span class="tok-kw">while</span> (file_it.next()) \|file_entry\| {</span> <span class="line" id="L610"> self.allocator.free(file_entry.);</span> <span class="line" id="L611"> }</span> <span class="line" id="L612"> self.allocator.free(wd_entry.value.dirname);</span> <span class="line" id="L613"> wd_entry.value.file_table.deinit(self.allocator);</span> <span class="line" id="L614"> }</span> <span class="line" id="L615"> } <span class="tok-kw">else</span> <span class="tok-kw">if</span> (ev.mask & os.linux.IN_DELETE == os.linux.IN_DELETE) {</span> <span class="line" id="L616"> <span class="tok-comment">// File or directory was removed or deleted</span> </span> <span class="line" id="L617"> <span class="tok-kw">const</span> basename_ptr = ptr + <span class="tok-builtin">@sizeOf</span>(os.linux.inotify_event);</span> <span class="line" id="L618"> <span class="tok-kw">const</span> basename = std.mem.span(<span class="tok-builtin">@as</span>([:<span class="tok-number">0</span>]<span class="tok-type">u8</span>, <span class="tok-builtin">@ptrCast</span>(basename_ptr)));</span> <span class="line" id="L619"></span> <span class="line" id="L620"> <span class="tok-kw">const</span> dir = &self.os_data.wd_table.get(ev.wd).?;</span> <span class="line" id="L621"> <span class="tok-kw">if</span> (dir.file_table.getEntry(basename)) \|file_value\| {</span> <span class="line" id="L622"> self.channel.put(Event{</span> <span class="line" id="L623"> .id = .Delete,</span> <span class="line" id="L624"> .data = file_value.value_ptr.,</span> <span class="line" id="L625"> .dirname = dir.dirname,</span> <span class="line" id="L626"> .basename = file_value.key_ptr.,</span> <span class="line" id="L627"> });</span> <span class="line" id="L628"> }</span> <span class="line" id="L629"> }</span> <span class="line" id="L630"></span> <span class="line" id="L631"> ptr = <span class="tok-builtin">@alignCast</span>(ptr + <span class="tok-builtin">@sizeOf</span>(os.linux.inotify_event) + ev.len);</span> <span class="line" id="L632"> }</span> <span class="line" id="L633"> }</span> <span class="line" id="L634"> }</span> <span class="line" id="L635"> };</span> <span class="line" id="L636">}</span> <span class="line" id="L637"></span> <span class="line" id="L638"><span class="tok-kw">const</span> test_tmp_dir = <span class="tok-str">"std_event_fs_test"</span>;</span> <span class="line" id="L639"></span> <span class="line" id="L640"><span class="tok-kw">test</span> <span class="tok-str">"write a file, watch it, write it again, delete it"</span> {</span> <span class="line" id="L641"> <span class="tok-kw">if</span> (!std.io.is_async) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SkipZigTest;</span> <span class="line" id="L642"> <span class="tok-comment">// TODO https://github.com/ziglang/zig/issues/1908</span> </span> <span class="line" id="L643"> <span class="tok-kw">if</span> (builtin.single_threaded) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SkipZigTest;</span> <span class="line" id="L644"></span> <span class="line" id="L645"> <span class="tok-kw">try</span> std.fs.cwd().makePath(test_tmp_dir);</span> <span class="line" id="L646"> <span class="tok-kw">defer</span> std.fs.cwd().deleteTree(test_tmp_dir) <span class="tok-kw">catch</span> {};</span> <span class="line" id="L647"></span> <span class="line" id="L648"> <span class="tok-kw">return</span> testWriteWatchWriteDelete(std.testing.allocator);</span> <span class="line" id="L649">}</span> <span class="line" id="L650"></span> <span class="line" id="L651"><span class="tok-kw">fn</span> <span class="tok-fn">testWriteWatchWriteDelete</span>(allocator: Allocator) !<span class="tok-type">void</span> {</span> <span class="line" id="L652"> <span class="tok-kw">const</span> file_path = <span class="tok-kw">try</span> std.fs.path.join(allocator, &[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ test_tmp_dir, <span class="tok-str">"file.txt"</span> });</span> <span class="line" id="L653"> <span class="tok-kw">defer</span> allocator.free(file_path);</span> <span class="line" id="L654"></span> <span class="line" id="L655"> <span class="tok-kw">const</span> contents =</span> <span class="line" id="L656"> <span class="tok-str">\\line 1</span></span> <span class="line" id="L657"> <span class="tok-str">\\line 2</span></span> <span class="line" id="L658"> ;</span> <span class="line" id="L659"> <span class="tok-kw">const</span> line2_offset = <span class="tok-number">7</span>;</span> <span class="line" id="L660"></span> <span class="line" id="L661"> <span class="tok-comment">// first just write then read the file</span> </span> <span class="line" id="L662"> <span class="tok-kw">try</span> std.fs.cwd().writeFile(file_path, contents);</span> <span class="line" id="L663"></span> <span class="line" id="L664"> <span class="tok-kw">const</span> read_contents = <span class="tok-kw">try</span> std.fs.cwd().readFileAlloc(allocator, file_path, <span class="tok-number">1024</span> <span class="tok-number">1024</span>);</span> <span class="line" id="L665"> <span class="tok-kw">defer</span> allocator.free(read_contents);</span> <span class="line" id="L666"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, contents, read_contents);</span> <span class="line" id="L667"></span> <span class="line" id="L668"> <span class="tok-comment">// now watch the file</span> </span> <span class="line" id="L669"> <span class="tok-kw">var</span> watch = <span class="tok-kw">try</span> Watch(<span class="tok-type">void</span>).init(allocator, <span class="tok-number">0</span>);</span> <span class="line" id="L670"> <span class="tok-kw">defer</span> watch.deinit();</span> <span class="line" id="L671"></span> <span class="line" id="L672"> <span class="tok-kw">try</span> testing.expect((<span class="tok-kw">try</span> watch.addFile(file_path, {})) == <span class="tok-null">null</span>);</span> <span class="line" id="L673"></span> <span class="line" id="L674"> <span class="tok-kw">var</span> ev = <span class="tok-kw">async</span> watch.channel.get();</span> <span class="line" id="L675"> <span class="tok-kw">var</span> ev_consumed = <span class="tok-null">false</span>;</span> <span class="line" id="L676"> <span class="tok-kw">defer</span> <span class="tok-kw">if</span> (!ev_consumed) {</span> <span class="line" id="L677"> _ = <span class="tok-kw">await</span> ev;</span> <span class="line" id="L678"> };</span> <span class="line" id="L679"></span> <span class="line" id="L680"> <span class="tok-comment">// overwrite line 2</span> </span> <span class="line" id="L681"> <span class="tok-kw">const</span> file = <span class="tok-kw">try</span> std.fs.cwd().openFile(file_path, .{ .mode = .read_write });</span> <span class="line" id="L682"> {</span> <span class="line" id="L683"> <span class="tok-kw">defer</span> file.close();</span> <span class="line" id="L684"> <span class="tok-kw">const</span> write_contents = <span class="tok-str">"lorem ipsum"</span>;</span> <span class="line" id="L685"> <span class="tok-kw">var</span> iovec = [_]os.iovec_const{.{</span> <span class="line" id="L686"> .iov_base = write_contents,</span> <span class="line" id="L687"> .iov_len = write_contents.len,</span> <span class="line" id="L688"> }};</span> <span class="line" id="L689"> _ = <span class="tok-kw">try</span> file.pwritevAll(&iovec, line2_offset);</span> <span class="line" id="L690"> }</span> <span class="line" id="L691"></span> <span class="line" id="L692"> <span class="tok-kw">switch</span> ((<span class="tok-kw">try</span> <span class="tok-kw">await</span> ev).id) {</span> <span class="line" id="L693"> .CloseWrite => {</span> <span class="line" id="L694"> ev_consumed = <span class="tok-null">true</span>;</span> <span class="line" id="L695"> },</span> <span class="line" id="L696"> .Delete => <span class="tok-builtin">@panic</span>(<span class="tok-str">"wrong event"</span>),</span> <span class="line" id="L697"> }</span> <span class="line" id="L698"></span> <span class="line" id="L699"> <span class="tok-kw">const</span> contents_updated = <span class="tok-kw">try</span> std.fs.cwd().readFileAlloc(allocator, file_path, <span class="tok-number">1024</span> * <span class="tok-number">1024</span>);</span> <span class="line" id="L700"> <span class="tok-kw">defer</span> allocator.free(contents_updated);</span> <span class="line" id="L701"></span> <span class="line" id="L702"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>,</span> <span class="line" id="L703"> <span class="tok-str">\\line 1</span></span> <span class="line" id="L704"> <span class="tok-str">\\lorem ipsum</span></span> <span class="line" id="L705"> , contents_updated);</span> <span class="line" id="L706"></span> <span class="line" id="L707"> ev = <span class="tok-kw">async</span> watch.channel.get();</span> <span class="line" id="L708"> ev_consumed = <span class="tok-null">false</span>;</span> <span class="line" id="L709"></span> <span class="line" id="L710"> <span class="tok-kw">try</span> std.fs.cwd().deleteFile(file_path);</span> <span class="line" id="L711"> <span class="tok-kw">switch</span> ((<span class="tok-kw">try</span> <span class="tok-kw">await</span> ev).id) {</span> <span class="line" id="L712"> .Delete => {</span> <span class="line" id="L713"> ev_consumed = <span class="tok-null">true</span>;</span> <span class="line" id="L714"> },</span> <span class="line" id="L715"> .CloseWrite => <span class="tok-builtin">@panic</span>(<span class="tok-str">"wrong event"</span>),</span> <span class="line" id="L716"> }</span> <span class="line" id="L717">}</span> <span class="line" id="L718"></span> <span class="line" id="L719"><span class="tok-comment">// TODO Test: Add another file watch, remove the old file watch, get an event in the new</span> </span> <span class="line" id="L720"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/fs/file.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>fs/file.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"../std.zig"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> builtin = <span class="tok-builtin">@import</span>(<span class="tok-str">"builtin"</span>);</span> <span class="line" id="L3"><span class="tok-kw">const</span> os = std.os;</span> <span class="line" id="L4"><span class="tok-kw">const</span> io = std.io;</span> <span class="line" id="L5"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L6"><span class="tok-kw">const</span> math = std.math;</span> <span class="line" id="L7"><span class="tok-kw">const</span> assert = std.debug.assert;</span> <span class="line" id="L8"><span class="tok-kw">const</span> windows = os.windows;</span> <span class="line" id="L9"><span class="tok-kw">const</span> Os = std.builtin.Os;</span> <span class="line" id="L10"><span class="tok-kw">const</span> maxInt = std.math.maxInt;</span> <span class="line" id="L11"><span class="tok-kw">const</span> is_windows = builtin.os.tag == .windows;</span> <span class="line" id="L12"></span> <span class="line" id="L13"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> File = <span class="tok-kw">struct</span> {</span> <span class="line" id="L14"> <span class="tok-comment">/// The OS-specific file descriptor or file handle.</span></span> <span class="line" id="L15"> handle: Handle,</span> <span class="line" id="L16"></span> <span class="line" id="L17"> <span class="tok-comment">/// On some systems, such as Linux, file system file descriptors are incapable</span></span> <span class="line" id="L18"> <span class="tok-comment">/// of non-blocking I/O. This forces us to perform asynchronous I/O on a dedicated thread,</span></span> <span class="line" id="L19"> <span class="tok-comment">/// to achieve non-blocking file-system I/O. To do this, `File` must be aware of whether</span></span> <span class="line" id="L20"> <span class="tok-comment">/// it is a file system file descriptor, or, more specifically, whether the I/O is always</span></span> <span class="line" id="L21"> <span class="tok-comment">/// blocking.</span></span> <span class="line" id="L22"> capable_io_mode: io.ModeOverride = io.default_mode,</span> <span class="line" id="L23"></span> <span class="line" id="L24"> <span class="tok-comment">/// Furthermore, even when `std.options.io_mode` is async, it is still sometimes desirable</span></span> <span class="line" id="L25"> <span class="tok-comment">/// to perform blocking I/O, although not by default. For example, when printing a</span></span> <span class="line" id="L26"> <span class="tok-comment">/// stack trace to stderr. This field tracks both by acting as an overriding I/O mode.</span></span> <span class="line" id="L27"> <span class="tok-comment">/// When not building in async I/O mode, the type only has the `.blocking` tag, making</span></span> <span class="line" id="L28"> <span class="tok-comment">/// it a zero-bit type.</span></span> <span class="line" id="L29"> intended_io_mode: io.ModeOverride = io.default_mode,</span> <span class="line" id="L30"></span> <span class="line" id="L31"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Handle = os.fd_t;</span> <span class="line" id="L32"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Mode = os.mode_t;</span> <span class="line" id="L33"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> INode = os.ino_t;</span> <span class="line" id="L34"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Uid = os.uid_t;</span> <span class="line" id="L35"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Gid = os.gid_t;</span> <span class="line" id="L36"></span> <span class="line" id="L37"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Kind = <span class="tok-kw">enum</span> {</span> <span class="line" id="L38"> block_device,</span> <span class="line" id="L39"> character_device,</span> <span class="line" id="L40"> directory,</span> <span class="line" id="L41"> named_pipe,</span> <span class="line" id="L42"> sym_link,</span> <span class="line" id="L43"> file,</span> <span class="line" id="L44"> unix_domain_socket,</span> <span class="line" id="L45"> whiteout,</span> <span class="line" id="L46"> door,</span> <span class="line" id="L47"> event_port,</span> <span class="line" id="L48"> unknown,</span> <span class="line" id="L49"> };</span> <span class="line" id="L50"></span> <span class="line" id="L51"> <span class="tok-comment">/// This is the default mode given to POSIX operating systems for creating</span></span> <span class="line" id="L52"> <span class="tok-comment">/// files. `0o666` is "-rw-rw-rw-" which is counter-intuitive at first,</span></span> <span class="line" id="L53"> <span class="tok-comment">/// since most people would expect "-rw-r--r--", for example, when using</span></span> <span class="line" id="L54"> <span class="tok-comment">/// the `touch` command, which would correspond to `0o644`. However, POSIX</span></span> <span class="line" id="L55"> <span class="tok-comment">/// libc implementations use `0o666` inside `fopen` and then rely on the</span></span> <span class="line" id="L56"> <span class="tok-comment">/// process-scoped "umask" setting to adjust this number for file creation.</span></span> <span class="line" id="L57"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> default_mode = <span class="tok-kw">switch</span> (builtin.os.tag) {</span> <span class="line" id="L58"> .windows => <span class="tok-number">0</span>,</span> <span class="line" id="L59"> .wasi => <span class="tok-number">0</span>,</span> <span class="line" id="L60"> <span class="tok-kw">else</span> => <span class="tok-number">0o666</span>,</span> <span class="line" id="L61"> };</span> <span class="line" id="L62"></span> <span class="line" id="L63"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> OpenError = <span class="tok-kw">error</span>{</span> <span class="line" id="L64"> SharingViolation,</span> <span class="line" id="L65"> PathAlreadyExists,</span> <span class="line" id="L66"> FileNotFound,</span> <span class="line" id="L67"> AccessDenied,</span> <span class="line" id="L68"> PipeBusy,</span> <span class="line" id="L69"> NameTooLong,</span> <span class="line" id="L70"> <span class="tok-comment">/// On Windows, file paths must be valid Unicode.</span></span> <span class="line" id="L71"> InvalidUtf8,</span> <span class="line" id="L72"> <span class="tok-comment">/// On Windows, file paths cannot contain these characters:</span></span> <span class="line" id="L73"> <span class="tok-comment">/// '/', '', '?', '"', '<', '>', '\|'</span></span> <span class="line" id="L74"> BadPathName,</span> <span class="line" id="L75"> Unexpected,</span> <span class="line" id="L76"> } \|\| os.OpenError \|\| os.FlockError;</span> <span class="line" id="L77"></span> <span class="line" id="L78"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> OpenMode = <span class="tok-kw">enum</span> {</span> <span class="line" id="L79"> read_only,</span> <span class="line" id="L80"> write_only,</span> <span class="line" id="L81"> read_write,</span> <span class="line" id="L82"> };</span> <span class="line" id="L83"></span> <span class="line" id="L84"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Lock = <span class="tok-kw">enum</span> {</span> <span class="line" id="L85"> none,</span> <span class="line" id="L86"> shared,</span> <span class="line" id="L87"> exclusive,</span> <span class="line" id="L88"> };</span> <span class="line" id="L89"></span> <span class="line" id="L90"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> OpenFlags = <span class="tok-kw">struct</span> {</span> <span class="line" id="L91"> mode: OpenMode = .read_only,</span> <span class="line" id="L92"></span> <span class="line" id="L93"> <span class="tok-comment">/// Open the file with an advisory lock to coordinate with other processes</span></span> <span class="line" id="L94"> <span class="tok-comment">/// accessing it at the same time. An exclusive lock will prevent other</span></span> <span class="line" id="L95"> <span class="tok-comment">/// processes from acquiring a lock. A shared lock will prevent other</span></span> <span class="line" id="L96"> <span class="tok-comment">/// processes from acquiring a exclusive lock, but does not prevent</span></span> <span class="line" id="L97"> <span class="tok-comment">/// other process from getting their own shared locks.</span></span> <span class="line" id="L98"> <span class="tok-comment">///</span></span> <span class="line" id="L99"> <span class="tok-comment">/// The lock is advisory, except on Linux in very specific circumstances[1].</span></span> <span class="line" id="L100"> <span class="tok-comment">/// This means that a process that does not respect the locking API can still get access</span></span> <span class="line" id="L101"> <span class="tok-comment">/// to the file, despite the lock.</span></span> <span class="line" id="L102"> <span class="tok-comment">///</span></span> <span class="line" id="L103"> <span class="tok-comment">/// On these operating systems, the lock is acquired atomically with</span></span> <span class="line" id="L104"> <span class="tok-comment">/// opening the file:</span></span> <span class="line" id="L105"> <span class="tok-comment">/// Darwin</span></span> <span class="line" id="L106"> <span class="tok-comment">/// * DragonFlyBSD</span></span> <span class="line" id="L107"> <span class="tok-comment">/// * FreeBSD</span></span> <span class="line" id="L108"> <span class="tok-comment">/// * Haiku</span></span> <span class="line" id="L109"> <span class="tok-comment">/// * NetBSD</span></span> <span class="line" id="L110"> <span class="tok-comment">/// * OpenBSD</span></span> <span class="line" id="L111"> <span class="tok-comment">/// On these operating systems, the lock is acquired via a separate syscall</span></span> <span class="line" id="L112"> <span class="tok-comment">/// after opening the file:</span></span> <span class="line" id="L113"> <span class="tok-comment">/// * Linux</span></span> <span class="line" id="L114"> <span class="tok-comment">/// * Windows</span></span> <span class="line" id="L115"> <span class="tok-comment">///</span></span> <span class="line" id="L116"> <span class="tok-comment">/// [1]: https://www.kernel.org/doc/Documentation/filesystems/mandatory-locking.txt</span></span> <span class="line" id="L117"> lock: Lock = .none,</span> <span class="line" id="L118"></span> <span class="line" id="L119"> <span class="tok-comment">/// Sets whether or not to wait until the file is locked to return. If set to true,</span></span> <span class="line" id="L120"> <span class="tok-comment">/// `error.WouldBlock` will be returned. Otherwise, the file will wait until the file</span></span> <span class="line" id="L121"> <span class="tok-comment">/// is available to proceed.</span></span> <span class="line" id="L122"> <span class="tok-comment">/// In async I/O mode, non-blocking at the OS level is</span></span> <span class="line" id="L123"> <span class="tok-comment">/// determined by `intended_io_mode`, and `true` means `error.WouldBlock` is returned,</span></span> <span class="line" id="L124"> <span class="tok-comment">/// and `false` means `error.WouldBlock` is handled by the event loop.</span></span> <span class="line" id="L125"> lock_nonblocking: <span class="tok-type">bool</span> = <span class="tok-null">false</span>,</span> <span class="line" id="L126"></span> <span class="line" id="L127"> <span class="tok-comment">/// Setting this to `.blocking` prevents `O.NONBLOCK` from being passed even</span></span> <span class="line" id="L128"> <span class="tok-comment">/// if `std.io.is_async`. It allows the use of `nosuspend` when calling functions</span></span> <span class="line" id="L129"> <span class="tok-comment">/// related to opening the file, reading, writing, and locking.</span></span> <span class="line" id="L130"> intended_io_mode: io.ModeOverride = io.default_mode,</span> <span class="line" id="L131"></span> <span class="line" id="L132"> <span class="tok-comment">/// Set this to allow the opened file to automatically become the</span></span> <span class="line" id="L133"> <span class="tok-comment">/// controlling TTY for the current process.</span></span> <span class="line" id="L134"> allow_ctty: <span class="tok-type">bool</span> = <span class="tok-null">false</span>,</span> <span class="line" id="L135"></span> <span class="line" id="L136"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">isRead</span>(self: OpenFlags) <span class="tok-type">bool</span> {</span> <span class="line" id="L137"> <span class="tok-kw">return</span> self.mode != .write_only;</span> <span class="line" id="L138"> }</span> <span class="line" id="L139"></span> <span class="line" id="L140"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">isWrite</span>(self: OpenFlags) <span class="tok-type">bool</span> {</span> <span class="line" id="L141"> <span class="tok-kw">return</span> self.mode != .read_only;</span> <span class="line" id="L142"> }</span> <span class="line" id="L143"> };</span> <span class="line" id="L144"></span> <span class="line" id="L145"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> CreateFlags = <span class="tok-kw">struct</span> {</span> <span class="line" id="L146"> <span class="tok-comment">/// Whether the file will be created with read access.</span></span> <span class="line" id="L147"> read: <span class="tok-type">bool</span> = <span class="tok-null">false</span>,</span> <span class="line" id="L148"></span> <span class="line" id="L149"> <span class="tok-comment">/// If the file already exists, and is a regular file, and the access</span></span> <span class="line" id="L150"> <span class="tok-comment">/// mode allows writing, it will be truncated to length 0.</span></span> <span class="line" id="L151"> truncate: <span class="tok-type">bool</span> = <span class="tok-null">true</span>,</span> <span class="line" id="L152"></span> <span class="line" id="L153"> <span class="tok-comment">/// Ensures that this open call creates the file, otherwise causes</span></span> <span class="line" id="L154"> <span class="tok-comment">/// `error.PathAlreadyExists` to be returned.</span></span> <span class="line" id="L155"> exclusive: <span class="tok-type">bool</span> = <span class="tok-null">false</span>,</span> <span class="line" id="L156"></span> <span class="line" id="L157"> <span class="tok-comment">/// Open the file with an advisory lock to coordinate with other processes</span></span> <span class="line" id="L158"> <span class="tok-comment">/// accessing it at the same time. An exclusive lock will prevent other</span></span> <span class="line" id="L159"> <span class="tok-comment">/// processes from acquiring a lock. A shared lock will prevent other</span></span> <span class="line" id="L160"> <span class="tok-comment">/// processes from acquiring a exclusive lock, but does not prevent</span></span> <span class="line" id="L161"> <span class="tok-comment">/// other process from getting their own shared locks.</span></span> <span class="line" id="L162"> <span class="tok-comment">///</span></span> <span class="line" id="L163"> <span class="tok-comment">/// The lock is advisory, except on Linux in very specific circumstances[1].</span></span> <span class="line" id="L164"> <span class="tok-comment">/// This means that a process that does not respect the locking API can still get access</span></span> <span class="line" id="L165"> <span class="tok-comment">/// to the file, despite the lock.</span></span> <span class="line" id="L166"> <span class="tok-comment">///</span></span> <span class="line" id="L167"> <span class="tok-comment">/// On these operating systems, the lock is acquired atomically with</span></span> <span class="line" id="L168"> <span class="tok-comment">/// opening the file:</span></span> <span class="line" id="L169"> <span class="tok-comment">/// * Darwin</span></span> <span class="line" id="L170"> <span class="tok-comment">/// * DragonFlyBSD</span></span> <span class="line" id="L171"> <span class="tok-comment">/// * FreeBSD</span></span> <span class="line" id="L172"> <span class="tok-comment">/// * Haiku</span></span> <span class="line" id="L173"> <span class="tok-comment">/// * NetBSD</span></span> <span class="line" id="L174"> <span class="tok-comment">/// * OpenBSD</span></span> <span class="line" id="L175"> <span class="tok-comment">/// On these operating systems, the lock is acquired via a separate syscall</span></span> <span class="line" id="L176"> <span class="tok-comment">/// after opening the file:</span></span> <span class="line" id="L177"> <span class="tok-comment">/// * Linux</span></span> <span class="line" id="L178"> <span class="tok-comment">/// * Windows</span></span> <span class="line" id="L179"> <span class="tok-comment">///</span></span> <span class="line" id="L180"> <span class="tok-comment">/// [1]: https://www.kernel.org/doc/Documentation/filesystems/mandatory-locking.txt</span></span> <span class="line" id="L181"> lock: Lock = .none,</span> <span class="line" id="L182"></span> <span class="line" id="L183"> <span class="tok-comment">/// Sets whether or not to wait until the file is locked to return. If set to true,</span></span> <span class="line" id="L184"> <span class="tok-comment">/// `error.WouldBlock` will be returned. Otherwise, the file will wait until the file</span></span> <span class="line" id="L185"> <span class="tok-comment">/// is available to proceed.</span></span> <span class="line" id="L186"> <span class="tok-comment">/// In async I/O mode, non-blocking at the OS level is</span></span> <span class="line" id="L187"> <span class="tok-comment">/// determined by `intended_io_mode`, and `true` means `error.WouldBlock` is returned,</span></span> <span class="line" id="L188"> <span class="tok-comment">/// and `false` means `error.WouldBlock` is handled by the event loop.</span></span> <span class="line" id="L189"> lock_nonblocking: <span class="tok-type">bool</span> = <span class="tok-null">false</span>,</span> <span class="line" id="L190"></span> <span class="line" id="L191"> <span class="tok-comment">/// For POSIX systems this is the file system mode the file will</span></span> <span class="line" id="L192"> <span class="tok-comment">/// be created with. On other systems this is always 0.</span></span> <span class="line" id="L193"> mode: Mode = default_mode,</span> <span class="line" id="L194"></span> <span class="line" id="L195"> <span class="tok-comment">/// Setting this to `.blocking` prevents `O.NONBLOCK` from being passed even</span></span> <span class="line" id="L196"> <span class="tok-comment">/// if `std.io.is_async`. It allows the use of `nosuspend` when calling functions</span></span> <span class="line" id="L197"> <span class="tok-comment">/// related to opening the file, reading, writing, and locking.</span></span> <span class="line" id="L198"> intended_io_mode: io.ModeOverride = io.default_mode,</span> <span class="line" id="L199"> };</span> <span class="line" id="L200"></span> <span class="line" id="L201"> <span class="tok-comment">/// Upon success, the stream is in an uninitialized state. To continue using it,</span></span> <span class="line" id="L202"> <span class="tok-comment">/// you must use the open() function.</span></span> <span class="line" id="L203"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">close</span>(self: File) <span class="tok-type">void</span> {</span> <span class="line" id="L204"> <span class="tok-kw">if</span> (is_windows) {</span> <span class="line" id="L205"> windows.CloseHandle(self.handle);</span> <span class="line" id="L206"> } <span class="tok-kw">else</span> <span class="tok-kw">if</span> (self.capable_io_mode != self.intended_io_mode) {</span> <span class="line" id="L207"> std.event.Loop.instance.?.close(self.handle);</span> <span class="line" id="L208"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L209"> os.close(self.handle);</span> <span class="line" id="L210"> }</span> <span class="line" id="L211"> }</span> <span class="line" id="L212"></span> <span class="line" id="L213"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> SyncError = os.SyncError;</span> <span class="line" id="L214"></span> <span class="line" id="L215"> <span class="tok-comment">/// Blocks until all pending file contents and metadata modifications</span></span> <span class="line" id="L216"> <span class="tok-comment">/// for the file have been synchronized with the underlying filesystem.</span></span> <span class="line" id="L217"> <span class="tok-comment">///</span></span> <span class="line" id="L218"> <span class="tok-comment">/// Note that this does not ensure that metadata for the</span></span> <span class="line" id="L219"> <span class="tok-comment">/// directory containing the file has also reached disk.</span></span> <span class="line" id="L220"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">sync</span>(self: File) SyncError!<span class="tok-type">void</span> {</span> <span class="line" id="L221"> <span class="tok-kw">return</span> os.fsync(self.handle);</span> <span class="line" id="L222"> }</span> <span class="line" id="L223"></span> <span class="line" id="L224"> <span class="tok-comment">/// Test whether the file refers to a terminal.</span></span> <span class="line" id="L225"> <span class="tok-comment">/// See also `supportsAnsiEscapeCodes`.</span></span> <span class="line" id="L226"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">isTty</span>(self: File) <span class="tok-type">bool</span> {</span> <span class="line" id="L227"> <span class="tok-kw">return</span> os.isatty(self.handle);</span> <span class="line" id="L228"> }</span> <span class="line" id="L229"></span> <span class="line" id="L230"> <span class="tok-comment">/// Test whether ANSI escape codes will be treated as such.</span></span> <span class="line" id="L231"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">supportsAnsiEscapeCodes</span>(self: File) <span class="tok-type">bool</span> {</span> <span class="line" id="L232"> <span class="tok-kw">if</span> (builtin.os.tag == .windows) {</span> <span class="line" id="L233"> <span class="tok-kw">var</span> console_mode: os.windows.DWORD = <span class="tok-number">0</span>;</span> <span class="line" id="L234"> <span class="tok-kw">if</span> (os.windows.kernel32.GetConsoleMode(self.handle, &console_mode) != <span class="tok-number">0</span>) {</span> <span class="line" id="L235"> <span class="tok-kw">if</span> (console_mode & os.windows.ENABLE_VIRTUAL_TERMINAL_PROCESSING != <span class="tok-number">0</span>) <span class="tok-kw">return</span> <span class="tok-null">true</span>;</span> <span class="line" id="L236"> }</span> <span class="line" id="L237"></span> <span class="line" id="L238"> <span class="tok-kw">return</span> os.isCygwinPty(self.handle);</span> <span class="line" id="L239"> }</span> <span class="line" id="L240"> <span class="tok-kw">if</span> (builtin.os.tag == .wasi) {</span> <span class="line" id="L241"> <span class="tok-comment">// WASI sanitizes stdout when fd is a tty so ANSI escape codes</span> </span> <span class="line" id="L242"> <span class="tok-comment">// will not be interpreted as actual cursor commands, and</span> </span> <span class="line" id="L243"> <span class="tok-comment">// stderr is always sanitized.</span> </span> <span class="line" id="L244"> <span class="tok-kw">return</span> <span class="tok-null">false</span>;</span> <span class="line" id="L245"> }</span> <span class="line" id="L246"> <span class="tok-kw">if</span> (self.isTty()) {</span> <span class="line" id="L247"> <span class="tok-kw">if</span> (self.handle == os.STDOUT_FILENO <span class="tok-kw">or</span> self.handle == os.STDERR_FILENO) {</span> <span class="line" id="L248"> <span class="tok-kw">if</span> (os.getenvZ(<span class="tok-str">"TERM"</span>)) \|term\| {</span> <span class="line" id="L249"> <span class="tok-kw">if</span> (std.mem.eql(<span class="tok-type">u8</span>, term, <span class="tok-str">"dumb"</span>))</span> <span class="line" id="L250"> <span class="tok-kw">return</span> <span class="tok-null">false</span>;</span> <span class="line" id="L251"> }</span> <span class="line" id="L252"> }</span> <span class="line" id="L253"> <span class="tok-kw">return</span> <span class="tok-null">true</span>;</span> <span class="line" id="L254"> }</span> <span class="line" id="L255"> <span class="tok-kw">return</span> <span class="tok-null">false</span>;</span> <span class="line" id="L256"> }</span> <span class="line" id="L257"></span> <span class="line" id="L258"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> SetEndPosError = os.TruncateError;</span> <span class="line" id="L259"></span> <span class="line" id="L260"> <span class="tok-comment">/// Shrinks or expands the file.</span></span> <span class="line" id="L261"> <span class="tok-comment">/// The file offset after this call is left unchanged.</span></span> <span class="line" id="L262"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">setEndPos</span>(self: File, length: <span class="tok-type">u64</span>) SetEndPosError!<span class="tok-type">void</span> {</span> <span class="line" id="L263"> <span class="tok-kw">try</span> os.ftruncate(self.handle, length);</span> <span class="line" id="L264"> }</span> <span class="line" id="L265"></span> <span class="line" id="L266"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> SeekError = os.SeekError;</span> <span class="line" id="L267"></span> <span class="line" id="L268"> <span class="tok-comment">/// Repositions read/write file offset relative to the current offset.</span></span> <span class="line" id="L269"> <span class="tok-comment">/// TODO: integrate with async I/O</span></span> <span class="line" id="L270"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">seekBy</span>(self: File, offset: <span class="tok-type">i64</span>) SeekError!<span class="tok-type">void</span> {</span> <span class="line" id="L271"> <span class="tok-kw">return</span> os.lseek_CUR(self.handle, offset);</span> <span class="line" id="L272"> }</span> <span class="line" id="L273"></span> <span class="line" id="L274"> <span class="tok-comment">/// Repositions read/write file offset relative to the end.</span></span> <span class="line" id="L275"> <span class="tok-comment">/// TODO: integrate with async I/O</span></span> <span class="line" id="L276"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">seekFromEnd</span>(self: File, offset: <span class="tok-type">i64</span>) SeekError!<span class="tok-type">void</span> {</span> <span class="line" id="L277"> <span class="tok-kw">return</span> os.lseek_END(self.handle, offset);</span> <span class="line" id="L278"> }</span> <span class="line" id="L279"></span> <span class="line" id="L280"> <span class="tok-comment">/// Repositions read/write file offset relative to the beginning.</span></span> <span class="line" id="L281"> <span class="tok-comment">/// TODO: integrate with async I/O</span></span> <span class="line" id="L282"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">seekTo</span>(self: File, offset: <span class="tok-type">u64</span>) SeekError!<span class="tok-type">void</span> {</span> <span class="line" id="L283"> <span class="tok-kw">return</span> os.lseek_SET(self.handle, offset);</span> <span class="line" id="L284"> }</span> <span class="line" id="L285"></span> <span class="line" id="L286"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> GetSeekPosError = os.SeekError \|\| os.FStatError;</span> <span class="line" id="L287"></span> <span class="line" id="L288"> <span class="tok-comment">/// TODO: integrate with async I/O</span></span> <span class="line" id="L289"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">getPos</span>(self: File) GetSeekPosError!<span class="tok-type">u64</span> {</span> <span class="line" id="L290"> <span class="tok-kw">return</span> os.lseek_CUR_get(self.handle);</span> <span class="line" id="L291"> }</span> <span class="line" id="L292"></span> <span class="line" id="L293"> <span class="tok-comment">/// TODO: integrate with async I/O</span></span> <span class="line" id="L294"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">getEndPos</span>(self: File) GetSeekPosError!<span class="tok-type">u64</span> {</span> <span class="line" id="L295"> <span class="tok-kw">if</span> (builtin.os.tag == .windows) {</span> <span class="line" id="L296"> <span class="tok-kw">return</span> windows.GetFileSizeEx(self.handle);</span> <span class="line" id="L297"> }</span> <span class="line" id="L298"> <span class="tok-kw">return</span> (<span class="tok-kw">try</span> self.stat()).size;</span> <span class="line" id="L299"> }</span> <span class="line" id="L300"></span> <span class="line" id="L301"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> ModeError = os.FStatError;</span> <span class="line" id="L302"></span> <span class="line" id="L303"> <span class="tok-comment">/// TODO: integrate with async I/O</span></span> <span class="line" id="L304"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">mode</span>(self: File) ModeError!Mode {</span> <span class="line" id="L305"> <span class="tok-kw">if</span> (builtin.os.tag == .windows) {</span> <span class="line" id="L306"> <span class="tok-kw">return</span> <span class="tok-number">0</span>;</span> <span class="line" id="L307"> }</span> <span class="line" id="L308"> <span class="tok-kw">return</span> (<span class="tok-kw">try</span> self.stat()).mode;</span> <span class="line" id="L309"> }</span> <span class="line" id="L310"></span> <span class="line" id="L311"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Stat = <span class="tok-kw">struct</span> {</span> <span class="line" id="L312"> <span class="tok-comment">/// A number that the system uses to point to the file metadata. This</span></span> <span class="line" id="L313"> <span class="tok-comment">/// number is not guaranteed to be unique across time, as some file</span></span> <span class="line" id="L314"> <span class="tok-comment">/// systems may reuse an inode after its file has been deleted. Some</span></span> <span class="line" id="L315"> <span class="tok-comment">/// systems may change the inode of a file over time.</span></span> <span class="line" id="L316"> <span class="tok-comment">///</span></span> <span class="line" id="L317"> <span class="tok-comment">/// On Linux, the inode is a structure that stores the metadata, and</span></span> <span class="line" id="L318"> <span class="tok-comment">/// the inode _number_ is what you see here: the index number of the</span></span> <span class="line" id="L319"> <span class="tok-comment">/// inode.</span></span> <span class="line" id="L320"> <span class="tok-comment">///</span></span> <span class="line" id="L321"> <span class="tok-comment">/// The FileIndex on Windows is similar. It is a number for a file that</span></span> <span class="line" id="L322"> <span class="tok-comment">/// is unique to each filesystem.</span></span> <span class="line" id="L323"> inode: INode,</span> <span class="line" id="L324"> size: <span class="tok-type">u64</span>,</span> <span class="line" id="L325"> <span class="tok-comment">/// This is available on POSIX systems and is always 0 otherwise.</span></span> <span class="line" id="L326"> mode: Mode,</span> <span class="line" id="L327"> kind: Kind,</span> <span class="line" id="L328"></span> <span class="line" id="L329"> <span class="tok-comment">/// Access time in nanoseconds, relative to UTC 1970-01-01.</span></span> <span class="line" id="L330"> atime: <span class="tok-type">i128</span>,</span> <span class="line" id="L331"> <span class="tok-comment">/// Last modification time in nanoseconds, relative to UTC 1970-01-01.</span></span> <span class="line" id="L332"> mtime: <span class="tok-type">i128</span>,</span> <span class="line" id="L333"> <span class="tok-comment">/// Creation time in nanoseconds, relative to UTC 1970-01-01.</span></span> <span class="line" id="L334"> ctime: <span class="tok-type">i128</span>,</span> <span class="line" id="L335"></span> <span class="line" id="L336"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">fromSystem</span>(st: os.system.Stat) Stat {</span> <span class="line" id="L337"> <span class="tok-kw">const</span> atime = st.atime();</span> <span class="line" id="L338"> <span class="tok-kw">const</span> mtime = st.mtime();</span> <span class="line" id="L339"> <span class="tok-kw">const</span> ctime = st.ctime();</span> <span class="line" id="L340"> <span class="tok-kw">const</span> kind: Kind = <span class="tok-kw">if</span> (builtin.os.tag == .wasi <span class="tok-kw">and</span> !builtin.link_libc) <span class="tok-kw">switch</span> (st.filetype) {</span> <span class="line" id="L341"> .BLOCK_DEVICE => .block_device,</span> <span class="line" id="L342"> .CHARACTER_DEVICE => .character_device,</span> <span class="line" id="L343"> .DIRECTORY => .directory,</span> <span class="line" id="L344"> .SYMBOLIC_LINK => .sym_link,</span> <span class="line" id="L345"> .REGULAR_FILE => .file,</span> <span class="line" id="L346"> .SOCKET_STREAM, .SOCKET_DGRAM => .unix_domain_socket,</span> <span class="line" id="L347"> <span class="tok-kw">else</span> => .unknown,</span> <span class="line" id="L348"> } <span class="tok-kw">else</span> blk: {</span> <span class="line" id="L349"> <span class="tok-kw">const</span> m = st.mode & os.S.IFMT;</span> <span class="line" id="L350"> <span class="tok-kw">switch</span> (m) {</span> <span class="line" id="L351"> os.S.IFBLK => <span class="tok-kw">break</span> :blk .block_device,</span> <span class="line" id="L352"> os.S.IFCHR => <span class="tok-kw">break</span> :blk .character_device,</span> <span class="line" id="L353"> os.S.IFDIR => <span class="tok-kw">break</span> :blk .directory,</span> <span class="line" id="L354"> os.S.IFIFO => <span class="tok-kw">break</span> :blk .named_pipe,</span> <span class="line" id="L355"> os.S.IFLNK => <span class="tok-kw">break</span> :blk .sym_link,</span> <span class="line" id="L356"> os.S.IFREG => <span class="tok-kw">break</span> :blk .file,</span> <span class="line" id="L357"> os.S.IFSOCK => <span class="tok-kw">break</span> :blk .unix_domain_socket,</span> <span class="line" id="L358"> <span class="tok-kw">else</span> => {},</span> <span class="line" id="L359"> }</span> <span class="line" id="L360"> <span class="tok-kw">if</span> (builtin.os.tag == .solaris) <span class="tok-kw">switch</span> (m) {</span> <span class="line" id="L361"> os.S.IFDOOR => <span class="tok-kw">break</span> :blk .door,</span> <span class="line" id="L362"> os.S.IFPORT => <span class="tok-kw">break</span> :blk .event_port,</span> <span class="line" id="L363"> <span class="tok-kw">else</span> => {},</span> <span class="line" id="L364"> };</span> <span class="line" id="L365"></span> <span class="line" id="L366"> <span class="tok-kw">break</span> :blk .unknown;</span> <span class="line" id="L367"> };</span> <span class="line" id="L368"></span> <span class="line" id="L369"> <span class="tok-kw">return</span> Stat{</span> <span class="line" id="L370"> .inode = st.ino,</span> <span class="line" id="L371"> .size = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@bitCast</span>(st.size)),</span> <span class="line" id="L372"> .mode = st.mode,</span> <span class="line" id="L373"> .kind = kind,</span> <span class="line" id="L374"> .atime = <span class="tok-builtin">@as</span>(<span class="tok-type">i128</span>, atime.tv_sec) * std.time.ns_per_s + atime.tv_nsec,</span> <span class="line" id="L375"> .mtime = <span class="tok-builtin">@as</span>(<span class="tok-type">i128</span>, mtime.tv_sec) * std.time.ns_per_s + mtime.tv_nsec,</span> <span class="line" id="L376"> .ctime = <span class="tok-builtin">@as</span>(<span class="tok-type">i128</span>, ctime.tv_sec) * std.time.ns_per_s + ctime.tv_nsec,</span> <span class="line" id="L377"> };</span> <span class="line" id="L378"> }</span> <span class="line" id="L379"> };</span> <span class="line" id="L380"></span> <span class="line" id="L381"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> StatError = os.FStatError;</span> <span class="line" id="L382"></span> <span class="line" id="L383"> <span class="tok-comment">/// TODO: integrate with async I/O</span></span> <span class="line" id="L384"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">stat</span>(self: File) StatError!Stat {</span> <span class="line" id="L385"> <span class="tok-kw">if</span> (builtin.os.tag == .windows) {</span> <span class="line" id="L386"> <span class="tok-kw">var</span> io_status_block: windows.IO_STATUS_BLOCK = <span class="tok-null">undefined</span>;</span> <span class="line" id="L387"> <span class="tok-kw">var</span> info: windows.FILE_ALL_INFORMATION = <span class="tok-null">undefined</span>;</span> <span class="line" id="L388"> <span class="tok-kw">const</span> rc = windows.ntdll.NtQueryInformationFile(self.handle, &io_status_block, &info, <span class="tok-builtin">@sizeOf</span>(windows.FILE_ALL_INFORMATION), .FileAllInformation);</span> <span class="line" id="L389"> <span class="tok-kw">switch</span> (rc) {</span> <span class="line" id="L390"> .SUCCESS => {},</span> <span class="line" id="L391"> <span class="tok-comment">// Buffer overflow here indicates that there is more information available than was able to be stored in the buffer</span> </span> <span class="line" id="L392"> <span class="tok-comment">// size provided. This is treated as success because the type of variable-length information that this would be relevant for</span> </span> <span class="line" id="L393"> <span class="tok-comment">// (name, volume name, etc) we don't care about.</span> </span> <span class="line" id="L394"> .BUFFER_OVERFLOW => {},</span> <span class="line" id="L395"> .INVALID_PARAMETER => <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L396"> .ACCESS_DENIED => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.AccessDenied,</span> <span class="line" id="L397"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> windows.unexpectedStatus(rc),</span> <span class="line" id="L398"> }</span> <span class="line" id="L399"> <span class="tok-kw">return</span> Stat{</span> <span class="line" id="L400"> .inode = info.InternalInformation.IndexNumber,</span> <span class="line" id="L401"> .size = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@bitCast</span>(info.StandardInformation.EndOfFile)),</span> <span class="line" id="L402"> .mode = <span class="tok-number">0</span>,</span> <span class="line" id="L403"> .kind = <span class="tok-kw">if</span> (info.StandardInformation.Directory == <span class="tok-number">0</span>) .file <span class="tok-kw">else</span> .directory,</span> <span class="line" id="L404"> .atime = windows.fromSysTime(info.BasicInformation.LastAccessTime),</span> <span class="line" id="L405"> .mtime = windows.fromSysTime(info.BasicInformation.LastWriteTime),</span> <span class="line" id="L406"> .ctime = windows.fromSysTime(info.BasicInformation.CreationTime),</span> <span class="line" id="L407"> };</span> <span class="line" id="L408"> }</span> <span class="line" id="L409"></span> <span class="line" id="L410"> <span class="tok-kw">const</span> st = <span class="tok-kw">try</span> os.fstat(self.handle);</span> <span class="line" id="L411"> <span class="tok-kw">return</span> Stat.fromSystem(st);</span> <span class="line" id="L412"> }</span> <span class="line" id="L413"></span> <span class="line" id="L414"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> ChmodError = std.os.FChmodError;</span> <span class="line" id="L415"></span> <span class="line" id="L416"> <span class="tok-comment">/// Changes the mode of the file.</span></span> <span class="line" id="L417"> <span class="tok-comment">/// The process must have the correct privileges in order to do this</span></span> <span class="line" id="L418"> <span class="tok-comment">/// successfully, or must have the effective user ID matching the owner</span></span> <span class="line" id="L419"> <span class="tok-comment">/// of the file.</span></span> <span class="line" id="L420"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">chmod</span>(self: File, new_mode: Mode) ChmodError!<span class="tok-type">void</span> {</span> <span class="line" id="L421"> <span class="tok-kw">try</span> os.fchmod(self.handle, new_mode);</span> <span class="line" id="L422"> }</span> <span class="line" id="L423"></span> <span class="line" id="L424"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> ChownError = std.os.FChownError;</span> <span class="line" id="L425"></span> <span class="line" id="L426"> <span class="tok-comment">/// Changes the owner and group of the file.</span></span> <span class="line" id="L427"> <span class="tok-comment">/// The process must have the correct privileges in order to do this</span></span> <span class="line" id="L428"> <span class="tok-comment">/// successfully. The group may be changed by the owner of the file to</span></span> <span class="line" id="L429"> <span class="tok-comment">/// any group of which the owner is a member. If the owner or group is</span></span> <span class="line" id="L430"> <span class="tok-comment">/// specified as `null`, the ID is not changed.</span></span> <span class="line" id="L431"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">chown</span>(self: File, owner: ?Uid, group: ?Gid) ChownError!<span class="tok-type">void</span> {</span> <span class="line" id="L432"> <span class="tok-kw">try</span> os.fchown(self.handle, owner, group);</span> <span class="line" id="L433"> }</span> <span class="line" id="L434"></span> <span class="line" id="L435"> <span class="tok-comment">/// Cross-platform representation of permissions on a file.</span></span> <span class="line" id="L436"> <span class="tok-comment">/// The `readonly` and `setReadonly` are the only methods available across all platforms.</span></span> <span class="line" id="L437"> <span class="tok-comment">/// Platform-specific functionality is available through the `inner` field.</span></span> <span class="line" id="L438"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Permissions = <span class="tok-kw">struct</span> {</span> <span class="line" id="L439"> <span class="tok-comment">/// You may use the `inner` field to use platform-specific functionality</span></span> <span class="line" id="L440"> inner: <span class="tok-kw">switch</span> (builtin.os.tag) {</span> <span class="line" id="L441"> .windows => PermissionsWindows,</span> <span class="line" id="L442"> <span class="tok-kw">else</span> => PermissionsUnix,</span> <span class="line" id="L443"> },</span> <span class="line" id="L444"></span> <span class="line" id="L445"> <span class="tok-kw">const</span> Self = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L446"></span> <span class="line" id="L447"> <span class="tok-comment">/// Returns `true` if permissions represent an unwritable file.</span></span> <span class="line" id="L448"> <span class="tok-comment">/// On Unix, `true` is returned only if no class has write permissions.</span></span> <span class="line" id="L449"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">readOnly</span>(self: Self) <span class="tok-type">bool</span> {</span> <span class="line" id="L450"> <span class="tok-kw">return</span> self.inner.readOnly();</span> <span class="line" id="L451"> }</span> <span class="line" id="L452"></span> <span class="line" id="L453"> <span class="tok-comment">/// Sets whether write permissions are provided.</span></span> <span class="line" id="L454"> <span class="tok-comment">/// On Unix, this affects all classes. If this is undesired, use `unixSet`</span></span> <span class="line" id="L455"> <span class="tok-comment">/// This method DOES NOT set permissions on the filesystem: use `File.setPermissions(permissions)`</span></span> <span class="line" id="L456"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">setReadOnly</span>(self: Self, read_only: <span class="tok-type">bool</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L457"> self.inner.setReadOnly(read_only);</span> <span class="line" id="L458"> }</span> <span class="line" id="L459"> };</span> <span class="line" id="L460"></span> <span class="line" id="L461"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> PermissionsWindows = <span class="tok-kw">struct</span> {</span> <span class="line" id="L462"> attributes: os.windows.DWORD,</span> <span class="line" id="L463"></span> <span class="line" id="L464"> <span class="tok-kw">const</span> Self = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L465"></span> <span class="line" id="L466"> <span class="tok-comment">/// Returns `true` if permissions represent an unwritable file.</span></span> <span class="line" id="L467"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">readOnly</span>(self: Self) <span class="tok-type">bool</span> {</span> <span class="line" id="L468"> <span class="tok-kw">return</span> self.attributes & os.windows.FILE_ATTRIBUTE_READONLY != <span class="tok-number">0</span>;</span> <span class="line" id="L469"> }</span> <span class="line" id="L470"></span> <span class="line" id="L471"> <span class="tok-comment">/// Sets whether write permissions are provided.</span></span> <span class="line" id="L472"> <span class="tok-comment">/// This method DOES NOT* set permissions on the filesystem: use `File.setPermissions(permissions)`</span></span> <span class="line" id="L473"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">setReadOnly</span>(self: Self, read_only: <span class="tok-type">bool</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L474"> <span class="tok-kw">if</span> (read_only) {</span> <span class="line" id="L475"> self.attributes \|= os.windows.FILE_ATTRIBUTE_READONLY;</span> <span class="line" id="L476"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L477"> self.attributes &= ~<span class="tok-builtin">@as</span>(os.windows.DWORD, os.windows.FILE_ATTRIBUTE_READONLY);</span> <span class="line" id="L478"> }</span> <span class="line" id="L479"> }</span> <span class="line" id="L480"> };</span> <span class="line" id="L481"></span> <span class="line" id="L482"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> PermissionsUnix = <span class="tok-kw">struct</span> {</span> <span class="line" id="L483"> mode: Mode,</span> <span class="line" id="L484"></span> <span class="line" id="L485"> <span class="tok-kw">const</span> Self = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L486"></span> <span class="line" id="L487"> <span class="tok-comment">/// Returns `true` if permissions represent an unwritable file.</span></span> <span class="line" id="L488"> <span class="tok-comment">/// `true` is returned only if no class has write permissions.</span></span> <span class="line" id="L489"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">readOnly</span>(self: Self) <span class="tok-type">bool</span> {</span> <span class="line" id="L490"> <span class="tok-kw">return</span> self.mode & <span class="tok-number">0o222</span> == <span class="tok-number">0</span>;</span> <span class="line" id="L491"> }</span> <span class="line" id="L492"></span> <span class="line" id="L493"> <span class="tok-comment">/// Sets whether write permissions are provided.</span></span> <span class="line" id="L494"> <span class="tok-comment">/// This affects all* classes. If this is undesired, use `unixSet`</span></span> <span class="line" id="L495"> <span class="tok-comment">/// This method DOES NOT set permissions on the filesystem: use `File.setPermissions(permissions)`</span></span> <span class="line" id="L496"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">setReadOnly</span>(self: Self, read_only: <span class="tok-type">bool</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L497"> <span class="tok-kw">if</span> (read_only) {</span> <span class="line" id="L498"> self.mode &= ~<span class="tok-builtin">@as</span>(Mode, <span class="tok-number">0o222</span>);</span> <span class="line" id="L499"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L500"> self.mode \|= <span class="tok-builtin">@as</span>(Mode, <span class="tok-number">0o222</span>);</span> <span class="line" id="L501"> }</span> <span class="line" id="L502"> }</span> <span class="line" id="L503"></span> <span class="line" id="L504"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Class = <span class="tok-kw">enum</span>(<span class="tok-type">u2</span>) {</span> <span class="line" id="L505"> user = <span class="tok-number">2</span>,</span> <span class="line" id="L506"> group = <span class="tok-number">1</span>,</span> <span class="line" id="L507"> other = <span class="tok-number">0</span>,</span> <span class="line" id="L508"> };</span> <span class="line" id="L509"></span> <span class="line" id="L510"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Permission = <span class="tok-kw">enum</span>(<span class="tok-type">u3</span>) {</span> <span class="line" id="L511"> read = <span class="tok-number">0o4</span>,</span> <span class="line" id="L512"> write = <span class="tok-number">0o2</span>,</span> <span class="line" id="L513"> execute = <span class="tok-number">0o1</span>,</span> <span class="line" id="L514"> };</span> <span class="line" id="L515"></span> <span class="line" id="L516"> <span class="tok-comment">/// Returns `true` if the chosen class has the selected permission.</span></span> <span class="line" id="L517"> <span class="tok-comment">/// This method is only available on Unix platforms.</span></span> <span class="line" id="L518"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">unixHas</span>(self: Self, class: Class, permission: Permission) <span class="tok-type">bool</span> {</span> <span class="line" id="L519"> <span class="tok-kw">const</span> mask = <span class="tok-builtin">@as</span>(Mode, <span class="tok-builtin">@intFromEnum</span>(permission)) << <span class="tok-builtin">@as</span>(<span class="tok-type">u3</span>, <span class="tok-builtin">@intFromEnum</span>(class)) <span class="tok-number">3</span>;</span> <span class="line" id="L520"> <span class="tok-kw">return</span> self.mode & mask != <span class="tok-number">0</span>;</span> <span class="line" id="L521"> }</span> <span class="line" id="L522"></span> <span class="line" id="L523"> <span class="tok-comment">/// Sets the permissions for the chosen class. Any permissions set to `null` are left unchanged.</span></span> <span class="line" id="L524"> <span class="tok-comment">/// This method DOES NOT set permissions on the filesystem: use `File.setPermissions(permissions)`</span></span> <span class="line" id="L525"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">unixSet</span>(self: Self, class: Class, permissions: <span class="tok-kw">struct</span> {</span> <span class="line" id="L526"> read: ?<span class="tok-type">bool</span> = <span class="tok-null">null</span>,</span> <span class="line" id="L527"> write: ?<span class="tok-type">bool</span> = <span class="tok-null">null</span>,</span> <span class="line" id="L528"> execute: ?<span class="tok-type">bool</span> = <span class="tok-null">null</span>,</span> <span class="line" id="L529"> }) <span class="tok-type">void</span> {</span> <span class="line" id="L530"> <span class="tok-kw">const</span> shift = <span class="tok-builtin">@as</span>(<span class="tok-type">u3</span>, <span class="tok-builtin">@intFromEnum</span>(class)) <span class="tok-number">3</span>;</span> <span class="line" id="L531"> <span class="tok-kw">if</span> (permissions.read) \|r\| {</span> <span class="line" id="L532"> <span class="tok-kw">if</span> (r) {</span> <span class="line" id="L533"> self.mode \|= <span class="tok-builtin">@as</span>(Mode, <span class="tok-number">0o4</span>) << shift;</span> <span class="line" id="L534"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L535"> self.mode &= ~(<span class="tok-builtin">@as</span>(Mode, <span class="tok-number">0o4</span>) << shift);</span> <span class="line" id="L536"> }</span> <span class="line" id="L537"> }</span> <span class="line" id="L538"> <span class="tok-kw">if</span> (permissions.write) \|w\| {</span> <span class="line" id="L539"> <span class="tok-kw">if</span> (w) {</span> <span class="line" id="L540"> self.mode \|= <span class="tok-builtin">@as</span>(Mode, <span class="tok-number">0o2</span>) << shift;</span> <span class="line" id="L541"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L542"> self.mode &= ~(<span class="tok-builtin">@as</span>(Mode, <span class="tok-number">0o2</span>) << shift);</span> <span class="line" id="L543"> }</span> <span class="line" id="L544"> }</span> <span class="line" id="L545"> <span class="tok-kw">if</span> (permissions.execute) \|x\| {</span> <span class="line" id="L546"> <span class="tok-kw">if</span> (x) {</span> <span class="line" id="L547"> self.mode \|= <span class="tok-builtin">@as</span>(Mode, <span class="tok-number">0o1</span>) << shift;</span> <span class="line" id="L548"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L549"> self.mode &= ~(<span class="tok-builtin">@as</span>(Mode, <span class="tok-number">0o1</span>) << shift);</span> <span class="line" id="L550"> }</span> <span class="line" id="L551"> }</span> <span class="line" id="L552"> }</span> <span class="line" id="L553"></span> <span class="line" id="L554"> <span class="tok-comment">/// Returns a `Permissions` struct representing the permissions from the passed mode.</span></span> <span class="line" id="L555"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">unixNew</span>(new_mode: Mode) Self {</span> <span class="line" id="L556"> <span class="tok-kw">return</span> Self{</span> <span class="line" id="L557"> .mode = new_mode,</span> <span class="line" id="L558"> };</span> <span class="line" id="L559"> }</span> <span class="line" id="L560"> };</span> <span class="line" id="L561"></span> <span class="line" id="L562"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> SetPermissionsError = ChmodError;</span> <span class="line" id="L563"></span> <span class="line" id="L564"> <span class="tok-comment">/// Sets permissions according to the provided `Permissions` struct.</span></span> <span class="line" id="L565"> <span class="tok-comment">/// This method is NOT available on WASI</span></span> <span class="line" id="L566"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">setPermissions</span>(self: File, permissions: Permissions) SetPermissionsError!<span class="tok-type">void</span> {</span> <span class="line" id="L567"> <span class="tok-kw">switch</span> (builtin.os.tag) {</span> <span class="line" id="L568"> .windows => {</span> <span class="line" id="L569"> <span class="tok-kw">var</span> io_status_block: windows.IO_STATUS_BLOCK = <span class="tok-null">undefined</span>;</span> <span class="line" id="L570"> <span class="tok-kw">var</span> info = windows.FILE_BASIC_INFORMATION{</span> <span class="line" id="L571"> .CreationTime = <span class="tok-number">0</span>,</span> <span class="line" id="L572"> .LastAccessTime = <span class="tok-number">0</span>,</span> <span class="line" id="L573"> .LastWriteTime = <span class="tok-number">0</span>,</span> <span class="line" id="L574"> .ChangeTime = <span class="tok-number">0</span>,</span> <span class="line" id="L575"> .FileAttributes = permissions.inner.attributes,</span> <span class="line" id="L576"> };</span> <span class="line" id="L577"> <span class="tok-kw">const</span> rc = windows.ntdll.NtSetInformationFile(</span> <span class="line" id="L578"> self.handle,</span> <span class="line" id="L579"> &io_status_block,</span> <span class="line" id="L580"> &info,</span> <span class="line" id="L581"> <span class="tok-builtin">@sizeOf</span>(windows.FILE_BASIC_INFORMATION),</span> <span class="line" id="L582"> .FileBasicInformation,</span> <span class="line" id="L583"> );</span> <span class="line" id="L584"> <span class="tok-kw">switch</span> (rc) {</span> <span class="line" id="L585"> .SUCCESS => <span class="tok-kw">return</span>,</span> <span class="line" id="L586"> .INVALID_HANDLE => <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L587"> .ACCESS_DENIED => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.AccessDenied,</span> <span class="line" id="L588"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> windows.unexpectedStatus(rc),</span> <span class="line" id="L589"> }</span> <span class="line" id="L590"> },</span> <span class="line" id="L591"> .wasi => <span class="tok-builtin">@compileError</span>(<span class="tok-str">"Unsupported OS"</span>), <span class="tok-comment">// Wasi filesystem does not yet support chmod</span> </span> <span class="line" id="L592"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L593"> <span class="tok-kw">try</span> self.chmod(permissions.inner.mode);</span> <span class="line" id="L594"> },</span> <span class="line" id="L595"> }</span> <span class="line" id="L596"> }</span> <span class="line" id="L597"></span> <span class="line" id="L598"> <span class="tok-comment">/// Cross-platform representation of file metadata.</span></span> <span class="line" id="L599"> <span class="tok-comment">/// Platform-specific functionality is available through the `inner` field.</span></span> <span class="line" id="L600"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Metadata = <span class="tok-kw">struct</span> {</span> <span class="line" id="L601"> <span class="tok-comment">/// You may use the `inner` field to use platform-specific functionality</span></span> <span class="line" id="L602"> inner: <span class="tok-kw">switch</span> (builtin.os.tag) {</span> <span class="line" id="L603"> .windows => MetadataWindows,</span> <span class="line" id="L604"> .linux => MetadataLinux,</span> <span class="line" id="L605"> <span class="tok-kw">else</span> => MetadataUnix,</span> <span class="line" id="L606"> },</span> <span class="line" id="L607"></span> <span class="line" id="L608"> <span class="tok-kw">const</span> Self = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L609"></span> <span class="line" id="L610"> <span class="tok-comment">/// Returns the size of the file</span></span> <span class="line" id="L611"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">size</span>(self: Self) <span class="tok-type">u64</span> {</span> <span class="line" id="L612"> <span class="tok-kw">return</span> self.inner.size();</span> <span class="line" id="L613"> }</span> <span class="line" id="L614"></span> <span class="line" id="L615"> <span class="tok-comment">/// Returns a `Permissions` struct, representing the permissions on the file</span></span> <span class="line" id="L616"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">permissions</span>(self: Self) Permissions {</span> <span class="line" id="L617"> <span class="tok-kw">return</span> self.inner.permissions();</span> <span class="line" id="L618"> }</span> <span class="line" id="L619"></span> <span class="line" id="L620"> <span class="tok-comment">/// Returns the `Kind` of file.</span></span> <span class="line" id="L621"> <span class="tok-comment">/// On Windows, can only return: `.file`, `.directory`, `.sym_link` or `.unknown`</span></span> <span class="line" id="L622"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">kind</span>(self: Self) Kind {</span> <span class="line" id="L623"> <span class="tok-kw">return</span> self.inner.kind();</span> <span class="line" id="L624"> }</span> <span class="line" id="L625"></span> <span class="line" id="L626"> <span class="tok-comment">/// Returns the last time the file was accessed in nanoseconds since UTC 1970-01-01</span></span> <span class="line" id="L627"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">accessed</span>(self: Self) <span class="tok-type">i128</span> {</span> <span class="line" id="L628"> <span class="tok-kw">return</span> self.inner.accessed();</span> <span class="line" id="L629"> }</span> <span class="line" id="L630"></span> <span class="line" id="L631"> <span class="tok-comment">/// Returns the time the file was modified in nanoseconds since UTC 1970-01-01</span></span> <span class="line" id="L632"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">modified</span>(self: Self) <span class="tok-type">i128</span> {</span> <span class="line" id="L633"> <span class="tok-kw">return</span> self.inner.modified();</span> <span class="line" id="L634"> }</span> <span class="line" id="L635"></span> <span class="line" id="L636"> <span class="tok-comment">/// Returns the time the file was created in nanoseconds since UTC 1970-01-01</span></span> <span class="line" id="L637"> <span class="tok-comment">/// On Windows, this cannot return null</span></span> <span class="line" id="L638"> <span class="tok-comment">/// On Linux, this returns null if the filesystem does not support creation times, or if the kernel is older than 4.11</span></span> <span class="line" id="L639"> <span class="tok-comment">/// On Unices, this returns null if the filesystem or OS does not support creation times</span></span> <span class="line" id="L640"> <span class="tok-comment">/// On MacOS, this returns the ctime if the filesystem does not support creation times; this is insanity, and yet another reason to hate on Apple</span></span> <span class="line" id="L641"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">created</span>(self: Self) ?<span class="tok-type">i128</span> {</span> <span class="line" id="L642"> <span class="tok-kw">return</span> self.inner.created();</span> <span class="line" id="L643"> }</span> <span class="line" id="L644"> };</span> <span class="line" id="L645"></span> <span class="line" id="L646"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> MetadataUnix = <span class="tok-kw">struct</span> {</span> <span class="line" id="L647"> stat: os.Stat,</span> <span class="line" id="L648"></span> <span class="line" id="L649"> <span class="tok-kw">const</span> Self = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L650"></span> <span class="line" id="L651"> <span class="tok-comment">/// Returns the size of the file</span></span> <span class="line" id="L652"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">size</span>(self: Self) <span class="tok-type">u64</span> {</span> <span class="line" id="L653"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@intCast</span>(self.stat.size));</span> <span class="line" id="L654"> }</span> <span class="line" id="L655"></span> <span class="line" id="L656"> <span class="tok-comment">/// Returns a `Permissions` struct, representing the permissions on the file</span></span> <span class="line" id="L657"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">permissions</span>(self: Self) Permissions {</span> <span class="line" id="L658"> <span class="tok-kw">return</span> Permissions{ .inner = PermissionsUnix{ .mode = self.stat.mode } };</span> <span class="line" id="L659"> }</span> <span class="line" id="L660"></span> <span class="line" id="L661"> <span class="tok-comment">/// Returns the `Kind` of the file</span></span> <span class="line" id="L662"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">kind</span>(self: Self) Kind {</span> <span class="line" id="L663"> <span class="tok-kw">if</span> (builtin.os.tag == .wasi <span class="tok-kw">and</span> !builtin.link_libc) <span class="tok-kw">return</span> <span class="tok-kw">switch</span> (self.stat.filetype) {</span> <span class="line" id="L664"> .BLOCK_DEVICE => .block_device,</span> <span class="line" id="L665"> .CHARACTER_DEVICE => .character_device,</span> <span class="line" id="L666"> .DIRECTORY => .directory,</span> <span class="line" id="L667"> .SYMBOLIC_LINK => .sym_link,</span> <span class="line" id="L668"> .REGULAR_FILE => .file,</span> <span class="line" id="L669"> .SOCKET_STREAM, .SOCKET_DGRAM => .unix_domain_socket,</span> <span class="line" id="L670"> <span class="tok-kw">else</span> => .unknown,</span> <span class="line" id="L671"> };</span> <span class="line" id="L672"></span> <span class="line" id="L673"> <span class="tok-kw">const</span> m = self.stat.mode & os.S.IFMT;</span> <span class="line" id="L674"></span> <span class="line" id="L675"> <span class="tok-kw">switch</span> (m) {</span> <span class="line" id="L676"> os.S.IFBLK => <span class="tok-kw">return</span> .block_device,</span> <span class="line" id="L677"> os.S.IFCHR => <span class="tok-kw">return</span> .character_device,</span> <span class="line" id="L678"> os.S.IFDIR => <span class="tok-kw">return</span> .directory,</span> <span class="line" id="L679"> os.S.IFIFO => <span class="tok-kw">return</span> .named_pipe,</span> <span class="line" id="L680"> os.S.IFLNK => <span class="tok-kw">return</span> .sym_link,</span> <span class="line" id="L681"> os.S.IFREG => <span class="tok-kw">return</span> .file,</span> <span class="line" id="L682"> os.S.IFSOCK => <span class="tok-kw">return</span> .unix_domain_socket,</span> <span class="line" id="L683"> <span class="tok-kw">else</span> => {},</span> <span class="line" id="L684"> }</span> <span class="line" id="L685"></span> <span class="line" id="L686"> <span class="tok-kw">if</span> (builtin.os.tag == .solaris) <span class="tok-kw">switch</span> (m) {</span> <span class="line" id="L687"> os.S.IFDOOR => <span class="tok-kw">return</span> .door,</span> <span class="line" id="L688"> os.S.IFPORT => <span class="tok-kw">return</span> .event_port,</span> <span class="line" id="L689"> <span class="tok-kw">else</span> => {},</span> <span class="line" id="L690"> };</span> <span class="line" id="L691"></span> <span class="line" id="L692"> <span class="tok-kw">return</span> .unknown;</span> <span class="line" id="L693"> }</span> <span class="line" id="L694"></span> <span class="line" id="L695"> <span class="tok-comment">/// Returns the last time the file was accessed in nanoseconds since UTC 1970-01-01</span></span> <span class="line" id="L696"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">accessed</span>(self: Self) <span class="tok-type">i128</span> {</span> <span class="line" id="L697"> <span class="tok-kw">const</span> atime = self.stat.atime();</span> <span class="line" id="L698"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">i128</span>, atime.tv_sec) * std.time.ns_per_s + atime.tv_nsec;</span> <span class="line" id="L699"> }</span> <span class="line" id="L700"></span> <span class="line" id="L701"> <span class="tok-comment">/// Returns the last time the file was modified in nanoseconds since UTC 1970-01-01</span></span> <span class="line" id="L702"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">modified</span>(self: Self) <span class="tok-type">i128</span> {</span> <span class="line" id="L703"> <span class="tok-kw">const</span> mtime = self.stat.mtime();</span> <span class="line" id="L704"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">i128</span>, mtime.tv_sec) * std.time.ns_per_s + mtime.tv_nsec;</span> <span class="line" id="L705"> }</span> <span class="line" id="L706"></span> <span class="line" id="L707"> <span class="tok-comment">/// Returns the time the file was created in nanoseconds since UTC 1970-01-01</span></span> <span class="line" id="L708"> <span class="tok-comment">/// Returns null if this is not supported by the OS or filesystem</span></span> <span class="line" id="L709"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">created</span>(self: Self) ?<span class="tok-type">i128</span> {</span> <span class="line" id="L710"> <span class="tok-kw">if</span> (!<span class="tok-builtin">@hasDecl</span>(<span class="tok-builtin">@TypeOf</span>(self.stat), <span class="tok-str">"birthtime"</span>)) <span class="tok-kw">return</span> <span class="tok-null">null</span>;</span> <span class="line" id="L711"> <span class="tok-kw">const</span> birthtime = self.stat.birthtime();</span> <span class="line" id="L712"></span> <span class="line" id="L713"> <span class="tok-comment">// If the filesystem doesn't support this the value should be:</span> </span> <span class="line" id="L714"> <span class="tok-comment">// On FreeBSD: tv_nsec = 0, tv_sec = -1</span> </span> <span class="line" id="L715"> <span class="tok-comment">// On NetBSD and OpenBSD: tv_nsec = 0, tv_sec = 0</span> </span> <span class="line" id="L716"> <span class="tok-comment">// On MacOS, it is set to ctime -- we cannot detect this!!</span> </span> <span class="line" id="L717"> <span class="tok-kw">switch</span> (builtin.os.tag) {</span> <span class="line" id="L718"> .freebsd => <span class="tok-kw">if</span> (birthtime.tv_sec == -<span class="tok-number">1</span> <span class="tok-kw">and</span> birthtime.tv_nsec == <span class="tok-number">0</span>) <span class="tok-kw">return</span> <span class="tok-null">null</span>,</span> <span class="line" id="L719"> .netbsd, .openbsd => <span class="tok-kw">if</span> (birthtime.tv_sec == <span class="tok-number">0</span> <span class="tok-kw">and</span> birthtime.tv_nsec == <span class="tok-number">0</span>) <span class="tok-kw">return</span> <span class="tok-null">null</span>,</span> <span class="line" id="L720"> .macos => {},</span> <span class="line" id="L721"> <span class="tok-kw">else</span> => <span class="tok-builtin">@compileError</span>(<span class="tok-str">"Creation time detection not implemented for OS"</span>),</span> <span class="line" id="L722"> }</span> <span class="line" id="L723"></span> <span class="line" id="L724"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">i128</span>, birthtime.tv_sec) * std.time.ns_per_s + birthtime.tv_nsec;</span> <span class="line" id="L725"> }</span> <span class="line" id="L726"> };</span> <span class="line" id="L727"></span> <span class="line" id="L728"> <span class="tok-comment">/// `MetadataUnix`, but using Linux's `statx` syscall.</span></span> <span class="line" id="L729"> <span class="tok-comment">/// On Linux versions below 4.11, `statx` will be filled with data from stat.</span></span> <span class="line" id="L730"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> MetadataLinux = <span class="tok-kw">struct</span> {</span> <span class="line" id="L731"> statx: os.linux.Statx,</span> <span class="line" id="L732"></span> <span class="line" id="L733"> <span class="tok-kw">const</span> Self = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L734"></span> <span class="line" id="L735"> <span class="tok-comment">/// Returns the size of the file</span></span> <span class="line" id="L736"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">size</span>(self: Self) <span class="tok-type">u64</span> {</span> <span class="line" id="L737"> <span class="tok-kw">return</span> self.statx.size;</span> <span class="line" id="L738"> }</span> <span class="line" id="L739"></span> <span class="line" id="L740"> <span class="tok-comment">/// Returns a `Permissions` struct, representing the permissions on the file</span></span> <span class="line" id="L741"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">permissions</span>(self: Self) Permissions {</span> <span class="line" id="L742"> <span class="tok-kw">return</span> Permissions{ .inner = PermissionsUnix{ .mode = self.statx.mode } };</span> <span class="line" id="L743"> }</span> <span class="line" id="L744"></span> <span class="line" id="L745"> <span class="tok-comment">/// Returns the `Kind` of the file</span></span> <span class="line" id="L746"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">kind</span>(self: Self) Kind {</span> <span class="line" id="L747"> <span class="tok-kw">const</span> m = self.statx.mode & os.S.IFMT;</span> <span class="line" id="L748"></span> <span class="line" id="L749"> <span class="tok-kw">switch</span> (m) {</span> <span class="line" id="L750"> os.S.IFBLK => <span class="tok-kw">return</span> .block_device,</span> <span class="line" id="L751"> os.S.IFCHR => <span class="tok-kw">return</span> .character_device,</span> <span class="line" id="L752"> os.S.IFDIR => <span class="tok-kw">return</span> .directory,</span> <span class="line" id="L753"> os.S.IFIFO => <span class="tok-kw">return</span> .named_pipe,</span> <span class="line" id="L754"> os.S.IFLNK => <span class="tok-kw">return</span> .sym_link,</span> <span class="line" id="L755"> os.S.IFREG => <span class="tok-kw">return</span> .file,</span> <span class="line" id="L756"> os.S.IFSOCK => <span class="tok-kw">return</span> .unix_domain_socket,</span> <span class="line" id="L757"> <span class="tok-kw">else</span> => {},</span> <span class="line" id="L758"> }</span> <span class="line" id="L759"></span> <span class="line" id="L760"> <span class="tok-kw">return</span> .unknown;</span> <span class="line" id="L761"> }</span> <span class="line" id="L762"></span> <span class="line" id="L763"> <span class="tok-comment">/// Returns the last time the file was accessed in nanoseconds since UTC 1970-01-01</span></span> <span class="line" id="L764"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">accessed</span>(self: Self) <span class="tok-type">i128</span> {</span> <span class="line" id="L765"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">i128</span>, self.statx.atime.tv_sec) * std.time.ns_per_s + self.statx.atime.tv_nsec;</span> <span class="line" id="L766"> }</span> <span class="line" id="L767"></span> <span class="line" id="L768"> <span class="tok-comment">/// Returns the last time the file was modified in nanoseconds since UTC 1970-01-01</span></span> <span class="line" id="L769"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">modified</span>(self: Self) <span class="tok-type">i128</span> {</span> <span class="line" id="L770"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">i128</span>, self.statx.mtime.tv_sec) * std.time.ns_per_s + self.statx.mtime.tv_nsec;</span> <span class="line" id="L771"> }</span> <span class="line" id="L772"></span> <span class="line" id="L773"> <span class="tok-comment">/// Returns the time the file was created in nanoseconds since UTC 1970-01-01</span></span> <span class="line" id="L774"> <span class="tok-comment">/// Returns null if this is not supported by the filesystem, or on kernels before than version 4.11</span></span> <span class="line" id="L775"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">created</span>(self: Self) ?<span class="tok-type">i128</span> {</span> <span class="line" id="L776"> <span class="tok-kw">if</span> (self.statx.mask & os.linux.STATX_BTIME == <span class="tok-number">0</span>) <span class="tok-kw">return</span> <span class="tok-null">null</span>;</span> <span class="line" id="L777"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">i128</span>, self.statx.btime.tv_sec) * std.time.ns_per_s + self.statx.btime.tv_nsec;</span> <span class="line" id="L778"> }</span> <span class="line" id="L779"> };</span> <span class="line" id="L780"></span> <span class="line" id="L781"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> MetadataWindows = <span class="tok-kw">struct</span> {</span> <span class="line" id="L782"> attributes: windows.DWORD,</span> <span class="line" id="L783"> reparse_tag: windows.DWORD,</span> <span class="line" id="L784"> _size: <span class="tok-type">u64</span>,</span> <span class="line" id="L785"> access_time: <span class="tok-type">i128</span>,</span> <span class="line" id="L786"> modified_time: <span class="tok-type">i128</span>,</span> <span class="line" id="L787"> creation_time: <span class="tok-type">i128</span>,</span> <span class="line" id="L788"></span> <span class="line" id="L789"> <span class="tok-kw">const</span> Self = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L790"></span> <span class="line" id="L791"> <span class="tok-comment">/// Returns the size of the file</span></span> <span class="line" id="L792"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">size</span>(self: Self) <span class="tok-type">u64</span> {</span> <span class="line" id="L793"> <span class="tok-kw">return</span> self._size;</span> <span class="line" id="L794"> }</span> <span class="line" id="L795"></span> <span class="line" id="L796"> <span class="tok-comment">/// Returns a `Permissions` struct, representing the permissions on the file</span></span> <span class="line" id="L797"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">permissions</span>(self: Self) Permissions {</span> <span class="line" id="L798"> <span class="tok-kw">return</span> Permissions{ .inner = PermissionsWindows{ .attributes = self.attributes } };</span> <span class="line" id="L799"> }</span> <span class="line" id="L800"></span> <span class="line" id="L801"> <span class="tok-comment">/// Returns the `Kind` of the file.</span></span> <span class="line" id="L802"> <span class="tok-comment">/// Can only return: `.file`, `.directory`, `.sym_link` or `.unknown`</span></span> <span class="line" id="L803"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">kind</span>(self: Self) Kind {</span> <span class="line" id="L804"> <span class="tok-kw">if</span> (self.attributes & windows.FILE_ATTRIBUTE_REPARSE_POINT != <span class="tok-number">0</span>) {</span> <span class="line" id="L805"> <span class="tok-kw">if</span> (self.reparse_tag & <span class="tok-number">0x20000000</span> != <span class="tok-number">0</span>) {</span> <span class="line" id="L806"> <span class="tok-kw">return</span> .sym_link;</span> <span class="line" id="L807"> }</span> <span class="line" id="L808"> } <span class="tok-kw">else</span> <span class="tok-kw">if</span> (self.attributes & windows.FILE_ATTRIBUTE_DIRECTORY != <span class="tok-number">0</span>) {</span> <span class="line" id="L809"> <span class="tok-kw">return</span> .directory;</span> <span class="line" id="L810"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L811"> <span class="tok-kw">return</span> .file;</span> <span class="line" id="L812"> }</span> <span class="line" id="L813"> <span class="tok-kw">return</span> .unknown;</span> <span class="line" id="L814"> }</span> <span class="line" id="L815"></span> <span class="line" id="L816"> <span class="tok-comment">/// Returns the last time the file was accessed in nanoseconds since UTC 1970-01-01</span></span> <span class="line" id="L817"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">accessed</span>(self: Self) <span class="tok-type">i128</span> {</span> <span class="line" id="L818"> <span class="tok-kw">return</span> self.access_time;</span> <span class="line" id="L819"> }</span> <span class="line" id="L820"></span> <span class="line" id="L821"> <span class="tok-comment">/// Returns the time the file was modified in nanoseconds since UTC 1970-01-01</span></span> <span class="line" id="L822"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">modified</span>(self: Self) <span class="tok-type">i128</span> {</span> <span class="line" id="L823"> <span class="tok-kw">return</span> self.modified_time;</span> <span class="line" id="L824"> }</span> <span class="line" id="L825"></span> <span class="line" id="L826"> <span class="tok-comment">/// Returns the time the file was created in nanoseconds since UTC 1970-01-01</span></span> <span class="line" id="L827"> <span class="tok-comment">/// This never returns null, only returning an optional for compatibility with other OSes</span></span> <span class="line" id="L828"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">created</span>(self: Self) ?<span class="tok-type">i128</span> {</span> <span class="line" id="L829"> <span class="tok-kw">return</span> self.creation_time;</span> <span class="line" id="L830"> }</span> <span class="line" id="L831"> };</span> <span class="line" id="L832"></span> <span class="line" id="L833"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> MetadataError = os.FStatError;</span> <span class="line" id="L834"></span> <span class="line" id="L835"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">metadata</span>(self: File) MetadataError!Metadata {</span> <span class="line" id="L836"> <span class="tok-kw">return</span> Metadata{</span> <span class="line" id="L837"> .inner = <span class="tok-kw">switch</span> (builtin.os.tag) {</span> <span class="line" id="L838"> .windows => blk: {</span> <span class="line" id="L839"> <span class="tok-kw">var</span> io_status_block: windows.IO_STATUS_BLOCK = <span class="tok-null">undefined</span>;</span> <span class="line" id="L840"> <span class="tok-kw">var</span> info: windows.FILE_ALL_INFORMATION = <span class="tok-null">undefined</span>;</span> <span class="line" id="L841"></span> <span class="line" id="L842"> <span class="tok-kw">const</span> rc = windows.ntdll.NtQueryInformationFile(self.handle, &io_status_block, &info, <span class="tok-builtin">@sizeOf</span>(windows.FILE_ALL_INFORMATION), .FileAllInformation);</span> <span class="line" id="L843"> <span class="tok-kw">switch</span> (rc) {</span> <span class="line" id="L844"> .SUCCESS => {},</span> <span class="line" id="L845"> <span class="tok-comment">// Buffer overflow here indicates that there is more information available than was able to be stored in the buffer</span> </span> <span class="line" id="L846"> <span class="tok-comment">// size provided. This is treated as success because the type of variable-length information that this would be relevant for</span> </span> <span class="line" id="L847"> <span class="tok-comment">// (name, volume name, etc) we don't care about.</span> </span> <span class="line" id="L848"> .BUFFER_OVERFLOW => {},</span> <span class="line" id="L849"> .INVALID_PARAMETER => <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L850"> .ACCESS_DENIED => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.AccessDenied,</span> <span class="line" id="L851"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> windows.unexpectedStatus(rc),</span> <span class="line" id="L852"> }</span> <span class="line" id="L853"></span> <span class="line" id="L854"> <span class="tok-kw">const</span> reparse_tag: windows.DWORD = reparse_blk: {</span> <span class="line" id="L855"> <span class="tok-kw">if</span> (info.BasicInformation.FileAttributes & windows.FILE_ATTRIBUTE_REPARSE_POINT != <span class="tok-number">0</span>) {</span> <span class="line" id="L856"> <span class="tok-kw">var</span> reparse_buf: [windows.MAXIMUM_REPARSE_DATA_BUFFER_SIZE]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L857"> <span class="tok-kw">try</span> windows.DeviceIoControl(self.handle, windows.FSCTL_GET_REPARSE_POINT, <span class="tok-null">null</span>, reparse_buf[<span class="tok-number">0</span>..]);</span> <span class="line" id="L858"> <span class="tok-kw">const</span> reparse_struct: <span class="tok-kw">const</span> windows.REPARSE_DATA_BUFFER = <span class="tok-builtin">@ptrCast</span>(<span class="tok-builtin">@alignCast</span>(&reparse_buf[<span class="tok-number">0</span>]));</span> <span class="line" id="L859"> <span class="tok-kw">break</span> :reparse_blk reparse_struct.ReparseTag;</span> <span class="line" id="L860"> }</span> <span class="line" id="L861"> <span class="tok-kw">break</span> :reparse_blk <span class="tok-number">0</span>;</span> <span class="line" id="L862"> };</span> <span class="line" id="L863"></span> <span class="line" id="L864"> <span class="tok-kw">break</span> :blk MetadataWindows{</span> <span class="line" id="L865"> .attributes = info.BasicInformation.FileAttributes,</span> <span class="line" id="L866"> .reparse_tag = reparse_tag,</span> <span class="line" id="L867"> ._size = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@bitCast</span>(info.StandardInformation.EndOfFile)),</span> <span class="line" id="L868"> .access_time = windows.fromSysTime(info.BasicInformation.LastAccessTime),</span> <span class="line" id="L869"> .modified_time = windows.fromSysTime(info.BasicInformation.LastWriteTime),</span> <span class="line" id="L870"> .creation_time = windows.fromSysTime(info.BasicInformation.CreationTime),</span> <span class="line" id="L871"> };</span> <span class="line" id="L872"> },</span> <span class="line" id="L873"> .linux => blk: {</span> <span class="line" id="L874"> <span class="tok-kw">var</span> stx = mem.zeroes(os.linux.Statx);</span> <span class="line" id="L875"> <span class="tok-kw">const</span> rcx = os.linux.statx(self.handle, <span class="tok-str">"\x00"</span>, os.linux.AT.EMPTY_PATH, os.linux.STATX_TYPE \| os.linux.STATX_MODE \| os.linux.STATX_ATIME \| os.linux.STATX_MTIME \| os.linux.STATX_BTIME, &stx);</span> <span class="line" id="L876"></span> <span class="line" id="L877"> <span class="tok-kw">switch</span> (os.errno(rcx)) {</span> <span class="line" id="L878"> .SUCCESS => {},</span> <span class="line" id="L879"> <span class="tok-comment">// NOSYS happens when `statx` is unsupported, which is the case on kernel versions before 4.11</span> </span> <span class="line" id="L880"> <span class="tok-comment">// Here, we call `fstat` and fill `stx` with the data we need</span> </span> <span class="line" id="L881"> .NOSYS => {</span> <span class="line" id="L882"> <span class="tok-kw">const</span> st = <span class="tok-kw">try</span> os.fstat(self.handle);</span> <span class="line" id="L883"></span> <span class="line" id="L884"> stx.mode = <span class="tok-builtin">@as</span>(<span class="tok-type">u16</span>, <span class="tok-builtin">@intCast</span>(st.mode));</span> <span class="line" id="L885"></span> <span class="line" id="L886"> <span class="tok-comment">// Hacky conversion from timespec to statx_timestamp</span> </span> <span class="line" id="L887"> stx.atime = std.mem.zeroes(os.linux.statx_timestamp);</span> <span class="line" id="L888"> stx.atime.tv_sec = st.atim.tv_sec;</span> <span class="line" id="L889"> stx.atime.tv_nsec = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(st.atim.tv_nsec)); <span class="tok-comment">// Guaranteed to succeed (tv_nsec is always below 10^9)</span> </span> <span class="line" id="L890"></span> <span class="line" id="L891"> stx.mtime = std.mem.zeroes(os.linux.statx_timestamp);</span> <span class="line" id="L892"> stx.mtime.tv_sec = st.mtim.tv_sec;</span> <span class="line" id="L893"> stx.mtime.tv_nsec = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(st.mtim.tv_nsec));</span> <span class="line" id="L894"></span> <span class="line" id="L895"> stx.mask = os.linux.STATX_BASIC_STATS \| os.linux.STATX_MTIME;</span> <span class="line" id="L896"> },</span> <span class="line" id="L897"> .BADF => <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L898"> .FAULT => <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L899"> .NOMEM => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SystemResources,</span> <span class="line" id="L900"> <span class="tok-kw">else</span> => \|err\| <span class="tok-kw">return</span> os.unexpectedErrno(err),</span> <span class="line" id="L901"> }</span> <span class="line" id="L902"></span> <span class="line" id="L903"> <span class="tok-kw">break</span> :blk MetadataLinux{</span> <span class="line" id="L904"> .statx = stx,</span> <span class="line" id="L905"> };</span> <span class="line" id="L906"> },</span> <span class="line" id="L907"> <span class="tok-kw">else</span> => blk: {</span> <span class="line" id="L908"> <span class="tok-kw">const</span> st = <span class="tok-kw">try</span> os.fstat(self.handle);</span> <span class="line" id="L909"> <span class="tok-kw">break</span> :blk MetadataUnix{</span> <span class="line" id="L910"> .stat = st,</span> <span class="line" id="L911"> };</span> <span class="line" id="L912"> },</span> <span class="line" id="L913"> },</span> <span class="line" id="L914"> };</span> <span class="line" id="L915"> }</span> <span class="line" id="L916"></span> <span class="line" id="L917"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> UpdateTimesError = os.FutimensError \|\| windows.SetFileTimeError;</span> <span class="line" id="L918"></span> <span class="line" id="L919"> <span class="tok-comment">/// The underlying file system may have a different granularity than nanoseconds,</span></span> <span class="line" id="L920"> <span class="tok-comment">/// and therefore this function cannot guarantee any precision will be stored.</span></span> <span class="line" id="L921"> <span class="tok-comment">/// Further, the maximum value is limited by the system ABI. When a value is provided</span></span> <span class="line" id="L922"> <span class="tok-comment">/// that exceeds this range, the value is clamped to the maximum.</span></span> <span class="line" id="L923"> <span class="tok-comment">/// TODO: integrate with async I/O</span></span> <span class="line" id="L924"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">updateTimes</span>(</span> <span class="line" id="L925"> self: File,</span> <span class="line" id="L926"> <span class="tok-comment">/// access timestamp in nanoseconds</span></span> <span class="line" id="L927"> atime: <span class="tok-type">i128</span>,</span> <span class="line" id="L928"> <span class="tok-comment">/// last modification timestamp in nanoseconds</span></span> <span class="line" id="L929"> mtime: <span class="tok-type">i128</span>,</span> <span class="line" id="L930"> ) UpdateTimesError!<span class="tok-type">void</span> {</span> <span class="line" id="L931"> <span class="tok-kw">if</span> (builtin.os.tag == .windows) {</span> <span class="line" id="L932"> <span class="tok-kw">const</span> atime_ft = windows.nanoSecondsToFileTime(atime);</span> <span class="line" id="L933"> <span class="tok-kw">const</span> mtime_ft = windows.nanoSecondsToFileTime(mtime);</span> <span class="line" id="L934"> <span class="tok-kw">return</span> windows.SetFileTime(self.handle, <span class="tok-null">null</span>, &atime_ft, &mtime_ft);</span> <span class="line" id="L935"> }</span> <span class="line" id="L936"> <span class="tok-kw">const</span> times = [<span class="tok-number">2</span>]os.timespec{</span> <span class="line" id="L937"> os.timespec{</span> <span class="line" id="L938"> .tv_sec = math.cast(<span class="tok-type">isize</span>, <span class="tok-builtin">@divFloor</span>(atime, std.time.ns_per_s)) <span class="tok-kw">orelse</span> maxInt(<span class="tok-type">isize</span>),</span> <span class="line" id="L939"> .tv_nsec = math.cast(<span class="tok-type">isize</span>, <span class="tok-builtin">@mod</span>(atime, std.time.ns_per_s)) <span class="tok-kw">orelse</span> maxInt(<span class="tok-type">isize</span>),</span> <span class="line" id="L940"> },</span> <span class="line" id="L941"> os.timespec{</span> <span class="line" id="L942"> .tv_sec = math.cast(<span class="tok-type">isize</span>, <span class="tok-builtin">@divFloor</span>(mtime, std.time.ns_per_s)) <span class="tok-kw">orelse</span> maxInt(<span class="tok-type">isize</span>),</span> <span class="line" id="L943"> .tv_nsec = math.cast(<span class="tok-type">isize</span>, <span class="tok-builtin">@mod</span>(mtime, std.time.ns_per_s)) <span class="tok-kw">orelse</span> maxInt(<span class="tok-type">isize</span>),</span> <span class="line" id="L944"> },</span> <span class="line" id="L945"> };</span> <span class="line" id="L946"> <span class="tok-kw">try</span> os.futimens(self.handle, &times);</span> <span class="line" id="L947"> }</span> <span class="line" id="L948"></span> <span class="line" id="L949"> <span class="tok-comment">/// Reads all the bytes from the current position to the end of the file.</span></span> <span class="line" id="L950"> <span class="tok-comment">/// On success, caller owns returned buffer.</span></span> <span class="line" id="L951"> <span class="tok-comment">/// If the file is larger than `max_bytes`, returns `error.FileTooBig`.</span></span> <span class="line" id="L952"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">readToEndAlloc</span>(self: File, allocator: mem.Allocator, max_bytes: <span class="tok-type">usize</span>) ![]<span class="tok-type">u8</span> {</span> <span class="line" id="L953"> <span class="tok-kw">return</span> self.readToEndAllocOptions(allocator, max_bytes, <span class="tok-null">null</span>, <span class="tok-builtin">@alignOf</span>(<span class="tok-type">u8</span>), <span class="tok-null">null</span>);</span> <span class="line" id="L954"> }</span> <span class="line" id="L955"></span> <span class="line" id="L956"> <span class="tok-comment">/// Reads all the bytes from the current position to the end of the file.</span></span> <span class="line" id="L957"> <span class="tok-comment">/// On success, caller owns returned buffer.</span></span> <span class="line" id="L958"> <span class="tok-comment">/// If the file is larger than `max_bytes`, returns `error.FileTooBig`.</span></span> <span class="line" id="L959"> <span class="tok-comment">/// If `size_hint` is specified the initial buffer size is calculated using</span></span> <span class="line" id="L960"> <span class="tok-comment">/// that value, otherwise an arbitrary value is used instead.</span></span> <span class="line" id="L961"> <span class="tok-comment">/// Allows specifying alignment and a sentinel value.</span></span> <span class="line" id="L962"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">readToEndAllocOptions</span>(</span> <span class="line" id="L963"> self: File,</span> <span class="line" id="L964"> allocator: mem.Allocator,</span> <span class="line" id="L965"> max_bytes: <span class="tok-type">usize</span>,</span> <span class="line" id="L966"> size_hint: ?<span class="tok-type">usize</span>,</span> <span class="line" id="L967"> <span class="tok-kw">comptime</span> alignment: <span class="tok-type">u29</span>,</span> <span class="line" id="L968"> <span class="tok-kw">comptime</span> optional_sentinel: ?<span class="tok-type">u8</span>,</span> <span class="line" id="L969"> ) !(<span class="tok-kw">if</span> (optional_sentinel) \|s\| [:s]<span class="tok-kw">align</span>(alignment) <span class="tok-type">u8</span> <span class="tok-kw">else</span> []<span class="tok-kw">align</span>(alignment) <span class="tok-type">u8</span>) {</span> <span class="line" id="L970"> <span class="tok-comment">// If no size hint is provided fall back to the size=0 code path</span> </span> <span class="line" id="L971"> <span class="tok-kw">const</span> size = size_hint <span class="tok-kw">orelse</span> <span class="tok-number">0</span>;</span> <span class="line" id="L972"></span> <span class="line" id="L973"> <span class="tok-comment">// The file size returned by stat is used as hint to set the buffer</span> </span> <span class="line" id="L974"> <span class="tok-comment">// size. If the reported size is zero, as it happens on Linux for files</span> </span> <span class="line" id="L975"> <span class="tok-comment">// in /proc, a small buffer is allocated instead.</span> </span> <span class="line" id="L976"> <span class="tok-kw">const</span> initial_cap = (<span class="tok-kw">if</span> (size > <span class="tok-number">0</span>) size <span class="tok-kw">else</span> <span class="tok-number">1024</span>) + <span class="tok-builtin">@intFromBool</span>(optional_sentinel != <span class="tok-null">null</span>);</span> <span class="line" id="L977"> <span class="tok-kw">var</span> array_list = <span class="tok-kw">try</span> std.ArrayListAligned(<span class="tok-type">u8</span>, alignment).initCapacity(allocator, initial_cap);</span> <span class="line" id="L978"> <span class="tok-kw">defer</span> array_list.deinit();</span> <span class="line" id="L979"></span> <span class="line" id="L980"> self.reader().readAllArrayListAligned(alignment, &array_list, max_bytes) <span class="tok-kw">catch</span> \|err\| <span class="tok-kw">switch</span> (err) {</span> <span class="line" id="L981"> <span class="tok-kw">error</span>.StreamTooLong => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.FileTooBig,</span> <span class="line" id="L982"> <span class="tok-kw">else</span> => \|e\| <span class="tok-kw">return</span> e,</span> <span class="line" id="L983"> };</span> <span class="line" id="L984"></span> <span class="line" id="L985"> <span class="tok-kw">if</span> (optional_sentinel) \|sentinel\| {</span> <span class="line" id="L986"> <span class="tok-kw">return</span> <span class="tok-kw">try</span> array_list.toOwnedSliceSentinel(sentinel);</span> <span class="line" id="L987"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L988"> <span class="tok-kw">return</span> <span class="tok-kw">try</span> array_list.toOwnedSlice();</span> <span class="line" id="L989"> }</span> <span class="line" id="L990"> }</span> <span class="line" id="L991"></span> <span class="line" id="L992"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> ReadError = os.ReadError;</span> <span class="line" id="L993"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> PReadError = os.PReadError;</span> <span class="line" id="L994"></span> <span class="line" id="L995"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">read</span>(self: File, buffer: []<span class="tok-type">u8</span>) ReadError!<span class="tok-type">usize</span> {</span> <span class="line" id="L996"> <span class="tok-kw">if</span> (is_windows) {</span> <span class="line" id="L997"> <span class="tok-kw">return</span> windows.ReadFile(self.handle, buffer, <span class="tok-null">null</span>, self.intended_io_mode);</span> <span class="line" id="L998"> }</span> <span class="line" id="L999"></span> <span class="line" id="L1000"> <span class="tok-kw">if</span> (self.intended_io_mode == .blocking) {</span> <span class="line" id="L1001"> <span class="tok-kw">return</span> os.read(self.handle, buffer);</span> <span class="line" id="L1002"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L1003"> <span class="tok-kw">return</span> std.event.Loop.instance.?.read(self.handle, buffer, self.capable_io_mode != self.intended_io_mode);</span> <span class="line" id="L1004"> }</span> <span class="line" id="L1005"> }</span> <span class="line" id="L1006"></span> <span class="line" id="L1007"> <span class="tok-comment">/// Returns the number of bytes read. If the number read is smaller than `buffer.len`, it</span></span> <span class="line" id="L1008"> <span class="tok-comment">/// means the file reached the end. Reaching the end of a file is not an error condition.</span></span> <span class="line" id="L1009"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">readAll</span>(self: File, buffer: []<span class="tok-type">u8</span>) ReadError!<span class="tok-type">usize</span> {</span> <span class="line" id="L1010"> <span class="tok-kw">var</span> index: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L1011"> <span class="tok-kw">while</span> (index != buffer.len) {</span> <span class="line" id="L1012"> <span class="tok-kw">const</span> amt = <span class="tok-kw">try</span> self.read(buffer[index..]);</span> <span class="line" id="L1013"> <span class="tok-kw">if</span> (amt == <span class="tok-number">0</span>) <span class="tok-kw">break</span>;</span> <span class="line" id="L1014"> index += amt;</span> <span class="line" id="L1015"> }</span> <span class="line" id="L1016"> <span class="tok-kw">return</span> index;</span> <span class="line" id="L1017"> }</span> <span class="line" id="L1018"></span> <span class="line" id="L1019"> <span class="tok-comment">/// On Windows, this function currently does alter the file pointer.</span></span> <span class="line" id="L1020"> <span class="tok-comment">/// https://github.com/ziglang/zig/issues/12783</span></span> <span class="line" id="L1021"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">pread</span>(self: File, buffer: []<span class="tok-type">u8</span>, offset: <span class="tok-type">u64</span>) PReadError!<span class="tok-type">usize</span> {</span> <span class="line" id="L1022"> <span class="tok-kw">if</span> (is_windows) {</span> <span class="line" id="L1023"> <span class="tok-kw">return</span> windows.ReadFile(self.handle, buffer, offset, self.intended_io_mode);</span> <span class="line" id="L1024"> }</span> <span class="line" id="L1025"></span> <span class="line" id="L1026"> <span class="tok-kw">if</span> (self.intended_io_mode == .blocking) {</span> <span class="line" id="L1027"> <span class="tok-kw">return</span> os.pread(self.handle, buffer, offset);</span> <span class="line" id="L1028"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L1029"> <span class="tok-kw">return</span> std.event.Loop.instance.?.pread(self.handle, buffer, offset, self.capable_io_mode != self.intended_io_mode);</span> <span class="line" id="L1030"> }</span> <span class="line" id="L1031"> }</span> <span class="line" id="L1032"></span> <span class="line" id="L1033"> <span class="tok-comment">/// Returns the number of bytes read. If the number read is smaller than `buffer.len`, it</span></span> <span class="line" id="L1034"> <span class="tok-comment">/// means the file reached the end. Reaching the end of a file is not an error condition.</span></span> <span class="line" id="L1035"> <span class="tok-comment">/// On Windows, this function currently does alter the file pointer.</span></span> <span class="line" id="L1036"> <span class="tok-comment">/// https://github.com/ziglang/zig/issues/12783</span></span> <span class="line" id="L1037"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">preadAll</span>(self: File, buffer: []<span class="tok-type">u8</span>, offset: <span class="tok-type">u64</span>) PReadError!<span class="tok-type">usize</span> {</span> <span class="line" id="L1038"> <span class="tok-kw">var</span> index: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L1039"> <span class="tok-kw">while</span> (index != buffer.len) {</span> <span class="line" id="L1040"> <span class="tok-kw">const</span> amt = <span class="tok-kw">try</span> self.pread(buffer[index..], offset + index);</span> <span class="line" id="L1041"> <span class="tok-kw">if</span> (amt == <span class="tok-number">0</span>) <span class="tok-kw">break</span>;</span> <span class="line" id="L1042"> index += amt;</span> <span class="line" id="L1043"> }</span> <span class="line" id="L1044"> <span class="tok-kw">return</span> index;</span> <span class="line" id="L1045"> }</span> <span class="line" id="L1046"></span> <span class="line" id="L1047"> <span class="tok-comment">/// See https://github.com/ziglang/zig/issues/7699</span></span> <span class="line" id="L1048"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">readv</span>(self: File, iovecs: []<span class="tok-kw">const</span> os.iovec) ReadError!<span class="tok-type">usize</span> {</span> <span class="line" id="L1049"> <span class="tok-kw">if</span> (is_windows) {</span> <span class="line" id="L1050"> <span class="tok-comment">// TODO improve this to use ReadFileScatter</span> </span> <span class="line" id="L1051"> <span class="tok-kw">if</span> (iovecs.len == <span class="tok-number">0</span>) <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-number">0</span>);</span> <span class="line" id="L1052"> <span class="tok-kw">const</span> first = iovecs[<span class="tok-number">0</span>];</span> <span class="line" id="L1053"> <span class="tok-kw">return</span> windows.ReadFile(self.handle, first.iov_base[<span class="tok-number">0</span>..first.iov_len], <span class="tok-null">null</span>, self.intended_io_mode);</span> <span class="line" id="L1054"> }</span> <span class="line" id="L1055"></span> <span class="line" id="L1056"> <span class="tok-kw">if</span> (self.intended_io_mode == .blocking) {</span> <span class="line" id="L1057"> <span class="tok-kw">return</span> os.readv(self.handle, iovecs);</span> <span class="line" id="L1058"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L1059"> <span class="tok-kw">return</span> std.event.Loop.instance.?.readv(self.handle, iovecs, self.capable_io_mode != self.intended_io_mode);</span> <span class="line" id="L1060"> }</span> <span class="line" id="L1061"> }</span> <span class="line" id="L1062"></span> <span class="line" id="L1063"> <span class="tok-comment">/// Returns the number of bytes read. If the number read is smaller than the total bytes</span></span> <span class="line" id="L1064"> <span class="tok-comment">/// from all the buffers, it means the file reached the end. Reaching the end of a file</span></span> <span class="line" id="L1065"> <span class="tok-comment">/// is not an error condition.</span></span> <span class="line" id="L1066"> <span class="tok-comment">///</span></span> <span class="line" id="L1067"> <span class="tok-comment">/// The `iovecs` parameter is mutable because:</span></span> <span class="line" id="L1068"> <span class="tok-comment">/// This function needs to mutate the fields in order to handle partial</span></span> <span class="line" id="L1069"> <span class="tok-comment">/// reads from the underlying OS layer.</span></span> <span class="line" id="L1070"> <span class="tok-comment">/// * The OS layer expects pointer addresses to be inside the application's address space</span></span> <span class="line" id="L1071"> <span class="tok-comment">/// even if the length is zero. Meanwhile, in Zig, slices may have undefined pointer</span></span> <span class="line" id="L1072"> <span class="tok-comment">/// addresses when the length is zero. So this function modifies the iov_base fields</span></span> <span class="line" id="L1073"> <span class="tok-comment">/// when the length is zero.</span></span> <span class="line" id="L1074"> <span class="tok-comment">///</span></span> <span class="line" id="L1075"> <span class="tok-comment">/// Related open issue: https://github.com/ziglang/zig/issues/7699</span></span> <span class="line" id="L1076"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">readvAll</span>(self: File, iovecs: []os.iovec) ReadError!<span class="tok-type">usize</span> {</span> <span class="line" id="L1077"> <span class="tok-kw">if</span> (iovecs.len == <span class="tok-number">0</span>) <span class="tok-kw">return</span> <span class="tok-number">0</span>;</span> <span class="line" id="L1078"></span> <span class="line" id="L1079"> <span class="tok-comment">// We use the address of this local variable for all zero-length</span> </span> <span class="line" id="L1080"> <span class="tok-comment">// vectors so that the OS does not complain that we are giving it</span> </span> <span class="line" id="L1081"> <span class="tok-comment">// addresses outside the application's address space.</span> </span> <span class="line" id="L1082"> <span class="tok-kw">var</span> garbage: [<span class="tok-number">1</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1083"> <span class="tok-kw">for</span> (iovecs) \|v\| {</span> <span class="line" id="L1084"> <span class="tok-kw">if</span> (v.iov_len == <span class="tok-number">0</span>) v.iov_base = &garbage;</span> <span class="line" id="L1085"> }</span> <span class="line" id="L1086"></span> <span class="line" id="L1087"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L1088"> <span class="tok-kw">var</span> off: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L1089"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L1090"> <span class="tok-kw">var</span> amt = <span class="tok-kw">try</span> self.readv(iovecs[i..]);</span> <span class="line" id="L1091"> <span class="tok-kw">var</span> eof = amt == <span class="tok-number">0</span>;</span> <span class="line" id="L1092"> off += amt;</span> <span class="line" id="L1093"> <span class="tok-kw">while</span> (amt >= iovecs[i].iov_len) {</span> <span class="line" id="L1094"> amt -= iovecs[i].iov_len;</span> <span class="line" id="L1095"> i += <span class="tok-number">1</span>;</span> <span class="line" id="L1096"> <span class="tok-kw">if</span> (i >= iovecs.len) <span class="tok-kw">return</span> off;</span> <span class="line" id="L1097"> eof = <span class="tok-null">false</span>;</span> <span class="line" id="L1098"> }</span> <span class="line" id="L1099"> <span class="tok-kw">if</span> (eof) <span class="tok-kw">return</span> off;</span> <span class="line" id="L1100"> iovecs[i].iov_base += amt;</span> <span class="line" id="L1101"> iovecs[i].iov_len -= amt;</span> <span class="line" id="L1102"> }</span> <span class="line" id="L1103"> }</span> <span class="line" id="L1104"></span> <span class="line" id="L1105"> <span class="tok-comment">/// See https://github.com/ziglang/zig/issues/7699</span></span> <span class="line" id="L1106"> <span class="tok-comment">/// On Windows, this function currently does alter the file pointer.</span></span> <span class="line" id="L1107"> <span class="tok-comment">/// https://github.com/ziglang/zig/issues/12783</span></span> <span class="line" id="L1108"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">preadv</span>(self: File, iovecs: []<span class="tok-kw">const</span> os.iovec, offset: <span class="tok-type">u64</span>) PReadError!<span class="tok-type">usize</span> {</span> <span class="line" id="L1109"> <span class="tok-kw">if</span> (is_windows) {</span> <span class="line" id="L1110"> <span class="tok-comment">// TODO improve this to use ReadFileScatter</span> </span> <span class="line" id="L1111"> <span class="tok-kw">if</span> (iovecs.len == <span class="tok-number">0</span>) <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-number">0</span>);</span> <span class="line" id="L1112"> <span class="tok-kw">const</span> first = iovecs[<span class="tok-number">0</span>];</span> <span class="line" id="L1113"> <span class="tok-kw">return</span> windows.ReadFile(self.handle, first.iov_base[<span class="tok-number">0</span>..first.iov_len], offset, self.intended_io_mode);</span> <span class="line" id="L1114"> }</span> <span class="line" id="L1115"></span> <span class="line" id="L1116"> <span class="tok-kw">if</span> (self.intended_io_mode == .blocking) {</span> <span class="line" id="L1117"> <span class="tok-kw">return</span> os.preadv(self.handle, iovecs, offset);</span> <span class="line" id="L1118"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L1119"> <span class="tok-kw">return</span> std.event.Loop.instance.?.preadv(self.handle, iovecs, offset, self.capable_io_mode != self.intended_io_mode);</span> <span class="line" id="L1120"> }</span> <span class="line" id="L1121"> }</span> <span class="line" id="L1122"></span> <span class="line" id="L1123"> <span class="tok-comment">/// Returns the number of bytes read. If the number read is smaller than the total bytes</span></span> <span class="line" id="L1124"> <span class="tok-comment">/// from all the buffers, it means the file reached the end. Reaching the end of a file</span></span> <span class="line" id="L1125"> <span class="tok-comment">/// is not an error condition.</span></span> <span class="line" id="L1126"> <span class="tok-comment">/// The `iovecs` parameter is mutable because this function needs to mutate the fields in</span></span> <span class="line" id="L1127"> <span class="tok-comment">/// order to handle partial reads from the underlying OS layer.</span></span> <span class="line" id="L1128"> <span class="tok-comment">/// See https://github.com/ziglang/zig/issues/7699</span></span> <span class="line" id="L1129"> <span class="tok-comment">/// On Windows, this function currently does alter the file pointer.</span></span> <span class="line" id="L1130"> <span class="tok-comment">/// https://github.com/ziglang/zig/issues/12783</span></span> <span class="line" id="L1131"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">preadvAll</span>(self: File, iovecs: []os.iovec, offset: <span class="tok-type">u64</span>) PReadError!<span class="tok-type">usize</span> {</span> <span class="line" id="L1132"> <span class="tok-kw">if</span> (iovecs.len == <span class="tok-number">0</span>) <span class="tok-kw">return</span> <span class="tok-number">0</span>;</span> <span class="line" id="L1133"></span> <span class="line" id="L1134"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L1135"> <span class="tok-kw">var</span> off: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L1136"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L1137"> <span class="tok-kw">var</span> amt = <span class="tok-kw">try</span> self.preadv(iovecs[i..], offset + off);</span> <span class="line" id="L1138"> <span class="tok-kw">var</span> eof = amt == <span class="tok-number">0</span>;</span> <span class="line" id="L1139"> off += amt;</span> <span class="line" id="L1140"> <span class="tok-kw">while</span> (amt >= iovecs[i].iov_len) {</span> <span class="line" id="L1141"> amt -= iovecs[i].iov_len;</span> <span class="line" id="L1142"> i += <span class="tok-number">1</span>;</span> <span class="line" id="L1143"> <span class="tok-kw">if</span> (i >= iovecs.len) <span class="tok-kw">return</span> off;</span> <span class="line" id="L1144"> eof = <span class="tok-null">false</span>;</span> <span class="line" id="L1145"> }</span> <span class="line" id="L1146"> <span class="tok-kw">if</span> (eof) <span class="tok-kw">return</span> off;</span> <span class="line" id="L1147"> iovecs[i].iov_base += amt;</span> <span class="line" id="L1148"> iovecs[i].iov_len -= amt;</span> <span class="line" id="L1149"> }</span> <span class="line" id="L1150"> }</span> <span class="line" id="L1151"></span> <span class="line" id="L1152"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> WriteError = os.WriteError;</span> <span class="line" id="L1153"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> PWriteError = os.PWriteError;</span> <span class="line" id="L1154"></span> <span class="line" id="L1155"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">write</span>(self: File, bytes: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) WriteError!<span class="tok-type">usize</span> {</span> <span class="line" id="L1156"> <span class="tok-kw">if</span> (is_windows) {</span> <span class="line" id="L1157"> <span class="tok-kw">return</span> windows.WriteFile(self.handle, bytes, <span class="tok-null">null</span>, self.intended_io_mode);</span> <span class="line" id="L1158"> }</span> <span class="line" id="L1159"></span> <span class="line" id="L1160"> <span class="tok-kw">if</span> (self.intended_io_mode == .blocking) {</span> <span class="line" id="L1161"> <span class="tok-kw">return</span> os.write(self.handle, bytes);</span> <span class="line" id="L1162"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L1163"> <span class="tok-kw">return</span> std.event.Loop.instance.?.write(self.handle, bytes, self.capable_io_mode != self.intended_io_mode);</span> <span class="line" id="L1164"> }</span> <span class="line" id="L1165"> }</span> <span class="line" id="L1166"></span> <span class="line" id="L1167"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">writeAll</span>(self: File, bytes: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) WriteError!<span class="tok-type">void</span> {</span> <span class="line" id="L1168"> <span class="tok-kw">var</span> index: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L1169"> <span class="tok-kw">while</span> (index < bytes.len) {</span> <span class="line" id="L1170"> index += <span class="tok-kw">try</span> self.write(bytes[index..]);</span> <span class="line" id="L1171"> }</span> <span class="line" id="L1172"> }</span> <span class="line" id="L1173"></span> <span class="line" id="L1174"> <span class="tok-comment">/// On Windows, this function currently does alter the file pointer.</span></span> <span class="line" id="L1175"> <span class="tok-comment">/// https://github.com/ziglang/zig/issues/12783</span></span> <span class="line" id="L1176"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">pwrite</span>(self: File, bytes: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, offset: <span class="tok-type">u64</span>) PWriteError!<span class="tok-type">usize</span> {</span> <span class="line" id="L1177"> <span class="tok-kw">if</span> (is_windows) {</span> <span class="line" id="L1178"> <span class="tok-kw">return</span> windows.WriteFile(self.handle, bytes, offset, self.intended_io_mode);</span> <span class="line" id="L1179"> }</span> <span class="line" id="L1180"></span> <span class="line" id="L1181"> <span class="tok-kw">if</span> (self.intended_io_mode == .blocking) {</span> <span class="line" id="L1182"> <span class="tok-kw">return</span> os.pwrite(self.handle, bytes, offset);</span> <span class="line" id="L1183"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L1184"> <span class="tok-kw">return</span> std.event.Loop.instance.?.pwrite(self.handle, bytes, offset, self.capable_io_mode != self.intended_io_mode);</span> <span class="line" id="L1185"> }</span> <span class="line" id="L1186"> }</span> <span class="line" id="L1187"></span> <span class="line" id="L1188"> <span class="tok-comment">/// On Windows, this function currently does alter the file pointer.</span></span> <span class="line" id="L1189"> <span class="tok-comment">/// https://github.com/ziglang/zig/issues/12783</span></span> <span class="line" id="L1190"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">pwriteAll</span>(self: File, bytes: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, offset: <span class="tok-type">u64</span>) PWriteError!<span class="tok-type">void</span> {</span> <span class="line" id="L1191"> <span class="tok-kw">var</span> index: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L1192"> <span class="tok-kw">while</span> (index < bytes.len) {</span> <span class="line" id="L1193"> index += <span class="tok-kw">try</span> self.pwrite(bytes[index..], offset + index);</span> <span class="line" id="L1194"> }</span> <span class="line" id="L1195"> }</span> <span class="line" id="L1196"></span> <span class="line" id="L1197"> <span class="tok-comment">/// See https://github.com/ziglang/zig/issues/7699</span></span> <span class="line" id="L1198"> <span class="tok-comment">/// See equivalent function: `std.net.Stream.writev`.</span></span> <span class="line" id="L1199"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">writev</span>(self: File, iovecs: []<span class="tok-kw">const</span> os.iovec_const) WriteError!<span class="tok-type">usize</span> {</span> <span class="line" id="L1200"> <span class="tok-kw">if</span> (is_windows) {</span> <span class="line" id="L1201"> <span class="tok-comment">// TODO improve this to use WriteFileScatter</span> </span> <span class="line" id="L1202"> <span class="tok-kw">if</span> (iovecs.len == <span class="tok-number">0</span>) <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-number">0</span>);</span> <span class="line" id="L1203"> <span class="tok-kw">const</span> first = iovecs[<span class="tok-number">0</span>];</span> <span class="line" id="L1204"> <span class="tok-kw">return</span> windows.WriteFile(self.handle, first.iov_base[<span class="tok-number">0</span>..first.iov_len], <span class="tok-null">null</span>, self.intended_io_mode);</span> <span class="line" id="L1205"> }</span> <span class="line" id="L1206"></span> <span class="line" id="L1207"> <span class="tok-kw">if</span> (self.intended_io_mode == .blocking) {</span> <span class="line" id="L1208"> <span class="tok-kw">return</span> os.writev(self.handle, iovecs);</span> <span class="line" id="L1209"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L1210"> <span class="tok-kw">return</span> std.event.Loop.instance.?.writev(self.handle, iovecs, self.capable_io_mode != self.intended_io_mode);</span> <span class="line" id="L1211"> }</span> <span class="line" id="L1212"> }</span> <span class="line" id="L1213"></span> <span class="line" id="L1214"> <span class="tok-comment">/// The `iovecs` parameter is mutable because:</span></span> <span class="line" id="L1215"> <span class="tok-comment">/// This function needs to mutate the fields in order to handle partial</span></span> <span class="line" id="L1216"> <span class="tok-comment">/// writes from the underlying OS layer.</span></span> <span class="line" id="L1217"> <span class="tok-comment">/// * The OS layer expects pointer addresses to be inside the application's address space</span></span> <span class="line" id="L1218"> <span class="tok-comment">/// even if the length is zero. Meanwhile, in Zig, slices may have undefined pointer</span></span> <span class="line" id="L1219"> <span class="tok-comment">/// addresses when the length is zero. So this function modifies the iov_base fields</span></span> <span class="line" id="L1220"> <span class="tok-comment">/// when the length is zero.</span></span> <span class="line" id="L1221"> <span class="tok-comment">/// See https://github.com/ziglang/zig/issues/7699</span></span> <span class="line" id="L1222"> <span class="tok-comment">/// See equivalent function: `std.net.Stream.writevAll`.</span></span> <span class="line" id="L1223"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">writevAll</span>(self: File, iovecs: []os.iovec_const) WriteError!<span class="tok-type">void</span> {</span> <span class="line" id="L1224"> <span class="tok-kw">if</span> (iovecs.len == <span class="tok-number">0</span>) <span class="tok-kw">return</span>;</span> <span class="line" id="L1225"></span> <span class="line" id="L1226"> <span class="tok-comment">// We use the address of this local variable for all zero-length</span> </span> <span class="line" id="L1227"> <span class="tok-comment">// vectors so that the OS does not complain that we are giving it</span> </span> <span class="line" id="L1228"> <span class="tok-comment">// addresses outside the application's address space.</span> </span> <span class="line" id="L1229"> <span class="tok-kw">var</span> garbage: [<span class="tok-number">1</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1230"> <span class="tok-kw">for</span> (iovecs) \|*v\| {</span> <span class="line" id="L1231"> <span class="tok-kw">if</span> (v.iov_len == <span class="tok-number">0</span>) v.iov_base = &garbage;</span> <span class="line" id="L1232"> }</span> <span class="line" id="L1233"></span> <span class="line" id="L1234"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L1235"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L1236"> <span class="tok-kw">var</span> amt = <span class="tok-kw">try</span> self.writev(iovecs[i..]);</span> <span class="line" id="L1237"> <span class="tok-kw">while</span> (amt >= iovecs[i].iov_len) {</span> <span class="line" id="L1238"> amt -= iovecs[i].iov_len;</span> <span class="line" id="L1239"> i += <span class="tok-number">1</span>;</span> <span class="line" id="L1240"> <span class="tok-kw">if</span> (i >= iovecs.len) <span class="tok-kw">return</span>;</span> <span class="line" id="L1241"> }</span> <span class="line" id="L1242"> iovecs[i].iov_base += amt;</span> <span class="line" id="L1243"> iovecs[i].iov_len -= amt;</span> <span class="line" id="L1244"> }</span> <span class="line" id="L1245"> }</span> <span class="line" id="L1246"></span> <span class="line" id="L1247"> <span class="tok-comment">/// See https://github.com/ziglang/zig/issues/7699</span></span> <span class="line" id="L1248"> <span class="tok-comment">/// On Windows, this function currently does alter the file pointer.</span></span> <span class="line" id="L1249"> <span class="tok-comment">/// https://github.com/ziglang/zig/issues/12783</span></span> <span class="line" id="L1250"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">pwritev</span>(self: File, iovecs: []os.iovec_const, offset: <span class="tok-type">u64</span>) PWriteError!<span class="tok-type">usize</span> {</span> <span class="line" id="L1251"> <span class="tok-kw">if</span> (is_windows) {</span> <span class="line" id="L1252"> <span class="tok-comment">// TODO improve this to use WriteFileScatter</span> </span> <span class="line" id="L1253"> <span class="tok-kw">if</span> (iovecs.len == <span class="tok-number">0</span>) <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-number">0</span>);</span> <span class="line" id="L1254"> <span class="tok-kw">const</span> first = iovecs[<span class="tok-number">0</span>];</span> <span class="line" id="L1255"> <span class="tok-kw">return</span> windows.WriteFile(self.handle, first.iov_base[<span class="tok-number">0</span>..first.iov_len], offset, self.intended_io_mode);</span> <span class="line" id="L1256"> }</span> <span class="line" id="L1257"></span> <span class="line" id="L1258"> <span class="tok-kw">if</span> (self.intended_io_mode == .blocking) {</span> <span class="line" id="L1259"> <span class="tok-kw">return</span> os.pwritev(self.handle, iovecs, offset);</span> <span class="line" id="L1260"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L1261"> <span class="tok-kw">return</span> std.event.Loop.instance.?.pwritev(self.handle, iovecs, offset, self.capable_io_mode != self.intended_io_mode);</span> <span class="line" id="L1262"> }</span> <span class="line" id="L1263"> }</span> <span class="line" id="L1264"></span> <span class="line" id="L1265"> <span class="tok-comment">/// The `iovecs` parameter is mutable because this function needs to mutate the fields in</span></span> <span class="line" id="L1266"> <span class="tok-comment">/// order to handle partial writes from the underlying OS layer.</span></span> <span class="line" id="L1267"> <span class="tok-comment">/// See https://github.com/ziglang/zig/issues/7699</span></span> <span class="line" id="L1268"> <span class="tok-comment">/// On Windows, this function currently does alter the file pointer.</span></span> <span class="line" id="L1269"> <span class="tok-comment">/// https://github.com/ziglang/zig/issues/12783</span></span> <span class="line" id="L1270"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">pwritevAll</span>(self: File, iovecs: []os.iovec_const, offset: <span class="tok-type">u64</span>) PWriteError!<span class="tok-type">void</span> {</span> <span class="line" id="L1271"> <span class="tok-kw">if</span> (iovecs.len == <span class="tok-number">0</span>) <span class="tok-kw">return</span>;</span> <span class="line" id="L1272"></span> <span class="line" id="L1273"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L1274"> <span class="tok-kw">var</span> off: <span class="tok-type">u64</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L1275"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L1276"> <span class="tok-kw">var</span> amt = <span class="tok-kw">try</span> self.pwritev(iovecs[i..], offset + off);</span> <span class="line" id="L1277"> off += amt;</span> <span class="line" id="L1278"> <span class="tok-kw">while</span> (amt >= iovecs[i].iov_len) {</span> <span class="line" id="L1279"> amt -= iovecs[i].iov_len;</span> <span class="line" id="L1280"> i += <span class="tok-number">1</span>;</span> <span class="line" id="L1281"> <span class="tok-kw">if</span> (i >= iovecs.len) <span class="tok-kw">return</span>;</span> <span class="line" id="L1282"> }</span> <span class="line" id="L1283"> iovecs[i].iov_base += amt;</span> <span class="line" id="L1284"> iovecs[i].iov_len -= amt;</span> <span class="line" id="L1285"> }</span> <span class="line" id="L1286"> }</span> <span class="line" id="L1287"></span> <span class="line" id="L1288"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> CopyRangeError = os.CopyFileRangeError;</span> <span class="line" id="L1289"></span> <span class="line" id="L1290"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">copyRange</span>(in: File, in_offset: <span class="tok-type">u64</span>, out: File, out_offset: <span class="tok-type">u64</span>, len: <span class="tok-type">u64</span>) CopyRangeError!<span class="tok-type">u64</span> {</span> <span class="line" id="L1291"> <span class="tok-kw">const</span> adjusted_len = math.cast(<span class="tok-type">usize</span>, len) <span class="tok-kw">orelse</span> math.maxInt(<span class="tok-type">usize</span>);</span> <span class="line" id="L1292"> <span class="tok-kw">const</span> result = <span class="tok-kw">try</span> os.copy_file_range(in.handle, in_offset, out.handle, out_offset, adjusted_len, <span class="tok-number">0</span>);</span> <span class="line" id="L1293"> <span class="tok-kw">return</span> result;</span> <span class="line" id="L1294"> }</span> <span class="line" id="L1295"></span> <span class="line" id="L1296"> <span class="tok-comment">/// Returns the number of bytes copied. If the number read is smaller than `buffer.len`, it</span></span> <span class="line" id="L1297"> <span class="tok-comment">/// means the in file reached the end. Reaching the end of a file is not an error condition.</span></span> <span class="line" id="L1298"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">copyRangeAll</span>(in: File, in_offset: <span class="tok-type">u64</span>, out: File, out_offset: <span class="tok-type">u64</span>, len: <span class="tok-type">u64</span>) CopyRangeError!<span class="tok-type">u64</span> {</span> <span class="line" id="L1299"> <span class="tok-kw">var</span> total_bytes_copied: <span class="tok-type">u64</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L1300"> <span class="tok-kw">var</span> in_off = in_offset;</span> <span class="line" id="L1301"> <span class="tok-kw">var</span> out_off = out_offset;</span> <span class="line" id="L1302"> <span class="tok-kw">while</span> (total_bytes_copied < len) {</span> <span class="line" id="L1303"> <span class="tok-kw">const</span> amt_copied = <span class="tok-kw">try</span> copyRange(in, in_off, out, out_off, len - total_bytes_copied);</span> <span class="line" id="L1304"> <span class="tok-kw">if</span> (amt_copied == <span class="tok-number">0</span>) <span class="tok-kw">return</span> total_bytes_copied;</span> <span class="line" id="L1305"> total_bytes_copied += amt_copied;</span> <span class="line" id="L1306"> in_off += amt_copied;</span> <span class="line" id="L1307"> out_off += amt_copied;</span> <span class="line" id="L1308"> }</span> <span class="line" id="L1309"> <span class="tok-kw">return</span> total_bytes_copied;</span> <span class="line" id="L1310"> }</span> <span class="line" id="L1311"></span> <span class="line" id="L1312"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> WriteFileOptions = <span class="tok-kw">struct</span> {</span> <span class="line" id="L1313"> in_offset: <span class="tok-type">u64</span> = <span class="tok-number">0</span>,</span> <span class="line" id="L1314"></span> <span class="line" id="L1315"> <span class="tok-comment">/// `null` means the entire file. `0` means no bytes from the file.</span></span> <span class="line" id="L1316"> <span class="tok-comment">/// When this is `null`, trailers must be sent in a separate writev() call</span></span> <span class="line" id="L1317"> <span class="tok-comment">/// due to a flaw in the BSD sendfile API. Other operating systems, such as</span></span> <span class="line" id="L1318"> <span class="tok-comment">/// Linux, already do this anyway due to API limitations.</span></span> <span class="line" id="L1319"> <span class="tok-comment">/// If the size of the source file is known, passing the size here will save one syscall.</span></span> <span class="line" id="L1320"> in_len: ?<span class="tok-type">u64</span> = <span class="tok-null">null</span>,</span> <span class="line" id="L1321"></span> <span class="line" id="L1322"> headers_and_trailers: []os.iovec_const = &[<span class="tok-number">0</span>]os.iovec_const{},</span> <span class="line" id="L1323"></span> <span class="line" id="L1324"> <span class="tok-comment">/// The trailer count is inferred from `headers_and_trailers.len - header_count`</span></span> <span class="line" id="L1325"> header_count: <span class="tok-type">usize</span> = <span class="tok-number">0</span>,</span> <span class="line" id="L1326"> };</span> <span class="line" id="L1327"></span> <span class="line" id="L1328"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> WriteFileError = ReadError \|\| <span class="tok-kw">error</span>{EndOfStream} \|\| WriteError;</span> <span class="line" id="L1329"></span> <span class="line" id="L1330"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">writeFileAll</span>(self: File, in_file: File, args: WriteFileOptions) WriteFileError!<span class="tok-type">void</span> {</span> <span class="line" id="L1331"> <span class="tok-kw">return</span> self.writeFileAllSendfile(in_file, args) <span class="tok-kw">catch</span> \|err\| <span class="tok-kw">switch</span> (err) {</span> <span class="line" id="L1332"> <span class="tok-kw">error</span>.Unseekable,</span> <span class="line" id="L1333"> <span class="tok-kw">error</span>.FastOpenAlreadyInProgress,</span> <span class="line" id="L1334"> <span class="tok-kw">error</span>.MessageTooBig,</span> <span class="line" id="L1335"> <span class="tok-kw">error</span>.FileDescriptorNotASocket,</span> <span class="line" id="L1336"> <span class="tok-kw">error</span>.NetworkUnreachable,</span> <span class="line" id="L1337"> <span class="tok-kw">error</span>.NetworkSubsystemFailed,</span> <span class="line" id="L1338"> => <span class="tok-kw">return</span> self.writeFileAllUnseekable(in_file, args),</span> <span class="line" id="L1339"></span> <span class="line" id="L1340"> <span class="tok-kw">else</span> => \|e\| <span class="tok-kw">return</span> e,</span> <span class="line" id="L1341"> };</span> <span class="line" id="L1342"> }</span> <span class="line" id="L1343"></span> <span class="line" id="L1344"> <span class="tok-comment">/// Does not try seeking in either of the File parameters.</span></span> <span class="line" id="L1345"> <span class="tok-comment">/// See `writeFileAll` as an alternative to calling this.</span></span> <span class="line" id="L1346"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">writeFileAllUnseekable</span>(self: File, in_file: File, args: WriteFileOptions) WriteFileError!<span class="tok-type">void</span> {</span> <span class="line" id="L1347"> <span class="tok-kw">const</span> headers = args.headers_and_trailers[<span class="tok-number">0</span>..args.header_count];</span> <span class="line" id="L1348"> <span class="tok-kw">const</span> trailers = args.headers_and_trailers[args.header_count..];</span> <span class="line" id="L1349"></span> <span class="line" id="L1350"> <span class="tok-kw">try</span> self.writevAll(headers);</span> <span class="line" id="L1351"></span> <span class="line" id="L1352"> <span class="tok-kw">try</span> in_file.reader().skipBytes(args.in_offset, .{ .buf_size = <span class="tok-number">4096</span> });</span> <span class="line" id="L1353"></span> <span class="line" id="L1354"> <span class="tok-kw">var</span> fifo = std.fifo.LinearFifo(<span class="tok-type">u8</span>, .{ .Static = <span class="tok-number">4096</span> }).init();</span> <span class="line" id="L1355"> <span class="tok-kw">if</span> (args.in_len) \|len\| {</span> <span class="line" id="L1356"> <span class="tok-kw">var</span> stream = std.io.limitedReader(in_file.reader(), len);</span> <span class="line" id="L1357"> <span class="tok-kw">try</span> fifo.pump(stream.reader(), self.writer());</span> <span class="line" id="L1358"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L1359"> <span class="tok-kw">try</span> fifo.pump(in_file.reader(), self.writer());</span> <span class="line" id="L1360"> }</span> <span class="line" id="L1361"></span> <span class="line" id="L1362"> <span class="tok-kw">try</span> self.writevAll(trailers);</span> <span class="line" id="L1363"> }</span> <span class="line" id="L1364"></span> <span class="line" id="L1365"> <span class="tok-comment">/// Low level function which can fail for OS-specific reasons.</span></span> <span class="line" id="L1366"> <span class="tok-comment">/// See `writeFileAll` as an alternative to calling this.</span></span> <span class="line" id="L1367"> <span class="tok-comment">/// TODO integrate with async I/O</span></span> <span class="line" id="L1368"> <span class="tok-kw">fn</span> <span class="tok-fn">writeFileAllSendfile</span>(self: File, in_file: File, args: WriteFileOptions) os.SendFileError!<span class="tok-type">void</span> {</span> <span class="line" id="L1369"> <span class="tok-kw">const</span> count = blk: {</span> <span class="line" id="L1370"> <span class="tok-kw">if</span> (args.in_len) \|l\| {</span> <span class="line" id="L1371"> <span class="tok-kw">if</span> (l == <span class="tok-number">0</span>) {</span> <span class="line" id="L1372"> <span class="tok-kw">return</span> self.writevAll(args.headers_and_trailers);</span> <span class="line" id="L1373"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L1374"> <span class="tok-kw">break</span> :blk l;</span> <span class="line" id="L1375"> }</span> <span class="line" id="L1376"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L1377"> <span class="tok-kw">break</span> :blk <span class="tok-number">0</span>;</span> <span class="line" id="L1378"> }</span> <span class="line" id="L1379"> };</span> <span class="line" id="L1380"> <span class="tok-kw">const</span> headers = args.headers_and_trailers[<span class="tok-number">0</span>..args.header_count];</span> <span class="line" id="L1381"> <span class="tok-kw">const</span> trailers = args.headers_and_trailers[args.header_count..];</span> <span class="line" id="L1382"> <span class="tok-kw">const</span> zero_iovec = &[<span class="tok-number">0</span>]os.iovec_const{};</span> <span class="line" id="L1383"> <span class="tok-comment">// When reading the whole file, we cannot put the trailers in the sendfile() syscall,</span> </span> <span class="line" id="L1384"> <span class="tok-comment">// because we have no way to determine whether a partial write is past the end of the file or not.</span> </span> <span class="line" id="L1385"> <span class="tok-kw">const</span> trls = <span class="tok-kw">if</span> (count == <span class="tok-number">0</span>) zero_iovec <span class="tok-kw">else</span> trailers;</span> <span class="line" id="L1386"> <span class="tok-kw">const</span> offset = args.in_offset;</span> <span class="line" id="L1387"> <span class="tok-kw">const</span> out_fd = self.handle;</span> <span class="line" id="L1388"> <span class="tok-kw">const</span> in_fd = in_file.handle;</span> <span class="line" id="L1389"> <span class="tok-kw">const</span> flags = <span class="tok-number">0</span>;</span> <span class="line" id="L1390"> <span class="tok-kw">var</span> amt: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L1391"> hdrs: {</span> <span class="line" id="L1392"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L1393"> <span class="tok-kw">while</span> (i < headers.len) {</span> <span class="line" id="L1394"> amt = <span class="tok-kw">try</span> os.sendfile(out_fd, in_fd, offset, count, headers[i..], trls, flags);</span> <span class="line" id="L1395"> <span class="tok-kw">while</span> (amt >= headers[i].iov_len) {</span> <span class="line" id="L1396"> amt -= headers[i].iov_len;</span> <span class="line" id="L1397"> i += <span class="tok-number">1</span>;</span> <span class="line" id="L1398"> <span class="tok-kw">if</span> (i >= headers.len) <span class="tok-kw">break</span> :hdrs;</span> <span class="line" id="L1399"> }</span> <span class="line" id="L1400"> headers[i].iov_base += amt;</span> <span class="line" id="L1401"> headers[i].iov_len -= amt;</span> <span class="line" id="L1402"> }</span> <span class="line" id="L1403"> }</span> <span class="line" id="L1404"> <span class="tok-kw">if</span> (count == <span class="tok-number">0</span>) {</span> <span class="line" id="L1405"> <span class="tok-kw">var</span> off: <span class="tok-type">u64</span> = amt;</span> <span class="line" id="L1406"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L1407"> amt = <span class="tok-kw">try</span> os.sendfile(out_fd, in_fd, offset + off, <span class="tok-number">0</span>, zero_iovec, zero_iovec, flags);</span> <span class="line" id="L1408"> <span class="tok-kw">if</span> (amt == <span class="tok-number">0</span>) <span class="tok-kw">break</span>;</span> <span class="line" id="L1409"> off += amt;</span> <span class="line" id="L1410"> }</span> <span class="line" id="L1411"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L1412"> <span class="tok-kw">var</span> off: <span class="tok-type">u64</span> = amt;</span> <span class="line" id="L1413"> <span class="tok-kw">while</span> (off < count) {</span> <span class="line" id="L1414"> amt = <span class="tok-kw">try</span> os.sendfile(out_fd, in_fd, offset + off, count - off, zero_iovec, trailers, flags);</span> <span class="line" id="L1415"> off += amt;</span> <span class="line" id="L1416"> }</span> <span class="line" id="L1417"> amt = <span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(off - count));</span> <span class="line" id="L1418"> }</span> <span class="line" id="L1419"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L1420"> <span class="tok-kw">while</span> (i < trailers.len) {</span> <span class="line" id="L1421"> <span class="tok-kw">while</span> (amt >= trailers[i].iov_len) {</span> <span class="line" id="L1422"> amt -= trailers[i].iov_len;</span> <span class="line" id="L1423"> i += <span class="tok-number">1</span>;</span> <span class="line" id="L1424"> <span class="tok-kw">if</span> (i >= trailers.len) <span class="tok-kw">return</span>;</span> <span class="line" id="L1425"> }</span> <span class="line" id="L1426"> trailers[i].iov_base += amt;</span> <span class="line" id="L1427"> trailers[i].iov_len -= amt;</span> <span class="line" id="L1428"> amt = <span class="tok-kw">try</span> os.writev(self.handle, trailers[i..]);</span> <span class="line" id="L1429"> }</span> <span class="line" id="L1430"> }</span> <span class="line" id="L1431"></span> <span class="line" id="L1432"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Reader = io.Reader(File, ReadError, read);</span> <span class="line" id="L1433"></span> <span class="line" id="L1434"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">reader</span>(file: File) Reader {</span> <span class="line" id="L1435"> <span class="tok-kw">return</span> .{ .context = file };</span> <span class="line" id="L1436"> }</span> <span class="line" id="L1437"></span> <span class="line" id="L1438"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Writer = io.Writer(File, WriteError, write);</span> <span class="line" id="L1439"></span> <span class="line" id="L1440"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">writer</span>(file: File) Writer {</span> <span class="line" id="L1441"> <span class="tok-kw">return</span> .{ .context = file };</span> <span class="line" id="L1442"> }</span> <span class="line" id="L1443"></span> <span class="line" id="L1444"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> SeekableStream = io.SeekableStream(</span> <span class="line" id="L1445"> File,</span> <span class="line" id="L1446"> SeekError,</span> <span class="line" id="L1447"> GetSeekPosError,</span> <span class="line" id="L1448"> seekTo,</span> <span class="line" id="L1449"> seekBy,</span> <span class="line" id="L1450"> getPos,</span> <span class="line" id="L1451"> getEndPos,</span> <span class="line" id="L1452"> );</span> <span class="line" id="L1453"></span> <span class="line" id="L1454"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">seekableStream</span>(file: File) SeekableStream {</span> <span class="line" id="L1455"> <span class="tok-kw">return</span> .{ .context = file };</span> <span class="line" id="L1456"> }</span> <span class="line" id="L1457"></span> <span class="line" id="L1458"> <span class="tok-kw">const</span> range_off: windows.LARGE_INTEGER = <span class="tok-number">0</span>;</span> <span class="line" id="L1459"> <span class="tok-kw">const</span> range_len: windows.LARGE_INTEGER = <span class="tok-number">1</span>;</span> <span class="line" id="L1460"></span> <span class="line" id="L1461"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> LockError = <span class="tok-kw">error</span>{</span> <span class="line" id="L1462"> SystemResources,</span> <span class="line" id="L1463"> FileLocksNotSupported,</span> <span class="line" id="L1464"> } \|\| os.UnexpectedError;</span> <span class="line" id="L1465"></span> <span class="line" id="L1466"> <span class="tok-comment">/// Blocks when an incompatible lock is held by another process.</span></span> <span class="line" id="L1467"> <span class="tok-comment">/// A process may hold only one type of lock (shared or exclusive) on</span></span> <span class="line" id="L1468"> <span class="tok-comment">/// a file. When a process terminates in any way, the lock is released.</span></span> <span class="line" id="L1469"> <span class="tok-comment">///</span></span> <span class="line" id="L1470"> <span class="tok-comment">/// Assumes the file is unlocked.</span></span> <span class="line" id="L1471"> <span class="tok-comment">///</span></span> <span class="line" id="L1472"> <span class="tok-comment">/// TODO: integrate with async I/O</span></span> <span class="line" id="L1473"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">lock</span>(file: File, l: Lock) LockError!<span class="tok-type">void</span> {</span> <span class="line" id="L1474"> <span class="tok-kw">if</span> (is_windows) {</span> <span class="line" id="L1475"> <span class="tok-kw">var</span> io_status_block: windows.IO_STATUS_BLOCK = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1476"> <span class="tok-kw">const</span> exclusive = <span class="tok-kw">switch</span> (l) {</span> <span class="line" id="L1477"> .none => <span class="tok-kw">return</span>,</span> <span class="line" id="L1478"> .shared => <span class="tok-null">false</span>,</span> <span class="line" id="L1479"> .exclusive => <span class="tok-null">true</span>,</span> <span class="line" id="L1480"> };</span> <span class="line" id="L1481"> <span class="tok-kw">return</span> windows.LockFile(</span> <span class="line" id="L1482"> file.handle,</span> <span class="line" id="L1483"> <span class="tok-null">null</span>,</span> <span class="line" id="L1484"> <span class="tok-null">null</span>,</span> <span class="line" id="L1485"> <span class="tok-null">null</span>,</span> <span class="line" id="L1486"> &io_status_block,</span> <span class="line" id="L1487"> &range_off,</span> <span class="line" id="L1488"> &range_len,</span> <span class="line" id="L1489"> <span class="tok-null">null</span>,</span> <span class="line" id="L1490"> windows.FALSE, <span class="tok-comment">// non-blocking=false</span> </span> <span class="line" id="L1491"> <span class="tok-builtin">@intFromBool</span>(exclusive),</span> <span class="line" id="L1492"> ) <span class="tok-kw">catch</span> \|err\| <span class="tok-kw">switch</span> (err) {</span> <span class="line" id="L1493"> <span class="tok-kw">error</span>.WouldBlock => <span class="tok-kw">unreachable</span>, <span class="tok-comment">// non-blocking=false</span> </span> <span class="line" id="L1494"> <span class="tok-kw">else</span> => \|e\| <span class="tok-kw">return</span> e,</span> <span class="line" id="L1495"> };</span> <span class="line" id="L1496"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L1497"> <span class="tok-kw">return</span> os.flock(file.handle, <span class="tok-kw">switch</span> (l) {</span> <span class="line" id="L1498"> .none => os.LOCK.UN,</span> <span class="line" id="L1499"> .shared => os.LOCK.SH,</span> <span class="line" id="L1500"> .exclusive => os.LOCK.EX,</span> <span class="line" id="L1501"> }) <span class="tok-kw">catch</span> \|err\| <span class="tok-kw">switch</span> (err) {</span> <span class="line" id="L1502"> <span class="tok-kw">error</span>.WouldBlock => <span class="tok-kw">unreachable</span>, <span class="tok-comment">// non-blocking=false</span> </span> <span class="line" id="L1503"> <span class="tok-kw">else</span> => \|e\| <span class="tok-kw">return</span> e,</span> <span class="line" id="L1504"> };</span> <span class="line" id="L1505"> }</span> <span class="line" id="L1506"> }</span> <span class="line" id="L1507"></span> <span class="line" id="L1508"> <span class="tok-comment">/// Assumes the file is locked.</span></span> <span class="line" id="L1509"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">unlock</span>(file: File) <span class="tok-type">void</span> {</span> <span class="line" id="L1510"> <span class="tok-kw">if</span> (is_windows) {</span> <span class="line" id="L1511"> <span class="tok-kw">var</span> io_status_block: windows.IO_STATUS_BLOCK = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1512"> <span class="tok-kw">return</span> windows.UnlockFile(</span> <span class="line" id="L1513"> file.handle,</span> <span class="line" id="L1514"> &io_status_block,</span> <span class="line" id="L1515"> &range_off,</span> <span class="line" id="L1516"> &range_len,</span> <span class="line" id="L1517"> <span class="tok-null">null</span>,</span> <span class="line" id="L1518"> ) <span class="tok-kw">catch</span> \|err\| <span class="tok-kw">switch</span> (err) {</span> <span class="line" id="L1519"> <span class="tok-kw">error</span>.RangeNotLocked => <span class="tok-kw">unreachable</span>, <span class="tok-comment">// Function assumes unlocked.</span> </span> <span class="line" id="L1520"> <span class="tok-kw">error</span>.Unexpected => <span class="tok-kw">unreachable</span>, <span class="tok-comment">// Resource deallocation must succeed.</span> </span> <span class="line" id="L1521"> };</span> <span class="line" id="L1522"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L1523"> <span class="tok-kw">return</span> os.flock(file.handle, os.LOCK.UN) <span class="tok-kw">catch</span> \|err\| <span class="tok-kw">switch</span> (err) {</span> <span class="line" id="L1524"> <span class="tok-kw">error</span>.WouldBlock => <span class="tok-kw">unreachable</span>, <span class="tok-comment">// unlocking can't block</span> </span> <span class="line" id="L1525"> <span class="tok-kw">error</span>.SystemResources => <span class="tok-kw">unreachable</span>, <span class="tok-comment">// We are deallocating resources.</span> </span> <span class="line" id="L1526"> <span class="tok-kw">error</span>.FileLocksNotSupported => <span class="tok-kw">unreachable</span>, <span class="tok-comment">// We already got the lock.</span> </span> <span class="line" id="L1527"> <span class="tok-kw">error</span>.Unexpected => <span class="tok-kw">unreachable</span>, <span class="tok-comment">// Resource deallocation must succeed.</span> </span> <span class="line" id="L1528"> };</span> <span class="line" id="L1529"> }</span> <span class="line" id="L1530"> }</span> <span class="line" id="L1531"></span> <span class="line" id="L1532"> <span class="tok-comment">/// Attempts to obtain a lock, returning `true` if the lock is</span></span> <span class="line" id="L1533"> <span class="tok-comment">/// obtained, and `false` if there was an existing incompatible lock held.</span></span> <span class="line" id="L1534"> <span class="tok-comment">/// A process may hold only one type of lock (shared or exclusive) on</span></span> <span class="line" id="L1535"> <span class="tok-comment">/// a file. When a process terminates in any way, the lock is released.</span></span> <span class="line" id="L1536"> <span class="tok-comment">///</span></span> <span class="line" id="L1537"> <span class="tok-comment">/// Assumes the file is unlocked.</span></span> <span class="line" id="L1538"> <span class="tok-comment">///</span></span> <span class="line" id="L1539"> <span class="tok-comment">/// TODO: integrate with async I/O</span></span> <span class="line" id="L1540"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">tryLock</span>(file: File, l: Lock) LockError!<span class="tok-type">bool</span> {</span> <span class="line" id="L1541"> <span class="tok-kw">if</span> (is_windows) {</span> <span class="line" id="L1542"> <span class="tok-kw">var</span> io_status_block: windows.IO_STATUS_BLOCK = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1543"> <span class="tok-kw">const</span> exclusive = <span class="tok-kw">switch</span> (l) {</span> <span class="line" id="L1544"> .none => <span class="tok-kw">return</span>,</span> <span class="line" id="L1545"> .shared => <span class="tok-null">false</span>,</span> <span class="line" id="L1546"> .exclusive => <span class="tok-null">true</span>,</span> <span class="line" id="L1547"> };</span> <span class="line" id="L1548"> windows.LockFile(</span> <span class="line" id="L1549"> file.handle,</span> <span class="line" id="L1550"> <span class="tok-null">null</span>,</span> <span class="line" id="L1551"> <span class="tok-null">null</span>,</span> <span class="line" id="L1552"> <span class="tok-null">null</span>,</span> <span class="line" id="L1553"> &io_status_block,</span> <span class="line" id="L1554"> &range_off,</span> <span class="line" id="L1555"> &range_len,</span> <span class="line" id="L1556"> <span class="tok-null">null</span>,</span> <span class="line" id="L1557"> windows.TRUE, <span class="tok-comment">// non-blocking=true</span> </span> <span class="line" id="L1558"> <span class="tok-builtin">@intFromBool</span>(exclusive),</span> <span class="line" id="L1559"> ) <span class="tok-kw">catch</span> \|err\| <span class="tok-kw">switch</span> (err) {</span> <span class="line" id="L1560"> <span class="tok-kw">error</span>.WouldBlock => <span class="tok-kw">return</span> <span class="tok-null">false</span>,</span> <span class="line" id="L1561"> <span class="tok-kw">else</span> => \|e\| <span class="tok-kw">return</span> e,</span> <span class="line" id="L1562"> };</span> <span class="line" id="L1563"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L1564"> os.flock(file.handle, <span class="tok-kw">switch</span> (l) {</span> <span class="line" id="L1565"> .none => os.LOCK.UN,</span> <span class="line" id="L1566"> .shared => os.LOCK.SH \| os.LOCK.NB,</span> <span class="line" id="L1567"> .exclusive => os.LOCK.EX \| os.LOCK.NB,</span> <span class="line" id="L1568"> }) <span class="tok-kw">catch</span> \|err\| <span class="tok-kw">switch</span> (err) {</span> <span class="line" id="L1569"> <span class="tok-kw">error</span>.WouldBlock => <span class="tok-kw">return</span> <span class="tok-null">false</span>,</span> <span class="line" id="L1570"> <span class="tok-kw">else</span> => \|e\| <span class="tok-kw">return</span> e,</span> <span class="line" id="L1571"> };</span> <span class="line" id="L1572"> }</span> <span class="line" id="L1573"> <span class="tok-kw">return</span> <span class="tok-null">true</span>;</span> <span class="line" id="L1574"> }</span> <span class="line" id="L1575"></span> <span class="line" id="L1576"> <span class="tok-comment">/// Assumes the file is already locked in exclusive mode.</span></span> <span class="line" id="L1577"> <span class="tok-comment">/// Atomically modifies the lock to be in shared mode, without releasing it.</span></span> <span class="line" id="L1578"> <span class="tok-comment">///</span></span> <span class="line" id="L1579"> <span class="tok-comment">/// TODO: integrate with async I/O</span></span> <span class="line" id="L1580"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">downgradeLock</span>(file: File) LockError!<span class="tok-type">void</span> {</span> <span class="line" id="L1581"> <span class="tok-kw">if</span> (is_windows) {</span> <span class="line" id="L1582"> <span class="tok-comment">// On Windows it works like a semaphore + exclusivity flag. To implement this</span> </span> <span class="line" id="L1583"> <span class="tok-comment">// function, we first obtain another lock in shared mode. This changes the</span> </span> <span class="line" id="L1584"> <span class="tok-comment">// exclusivity flag, but increments the semaphore to 2. So we follow up with</span> </span> <span class="line" id="L1585"> <span class="tok-comment">// an NtUnlockFile which decrements the semaphore but does not modify the</span> </span> <span class="line" id="L1586"> <span class="tok-comment">// exclusivity flag.</span> </span> <span class="line" id="L1587"> <span class="tok-kw">var</span> io_status_block: windows.IO_STATUS_BLOCK = <span class="tok-null">undefined</span>;</span> <span class="line" id="L1588"> windows.LockFile(</span> <span class="line" id="L1589"> file.handle,</span> <span class="line" id="L1590"> <span class="tok-null">null</span>,</span> <span class="line" id="L1591"> <span class="tok-null">null</span>,</span> <span class="line" id="L1592"> <span class="tok-null">null</span>,</span> <span class="line" id="L1593"> &io_status_block,</span> <span class="line" id="L1594"> &range_off,</span> <span class="line" id="L1595"> &range_len,</span> <span class="line" id="L1596"> <span class="tok-null">null</span>,</span> <span class="line" id="L1597"> windows.TRUE, <span class="tok-comment">// non-blocking=true</span> </span> <span class="line" id="L1598"> windows.FALSE, <span class="tok-comment">// exclusive=false</span> </span> <span class="line" id="L1599"> ) <span class="tok-kw">catch</span> \|err\| <span class="tok-kw">switch</span> (err) {</span> <span class="line" id="L1600"> <span class="tok-kw">error</span>.WouldBlock => <span class="tok-kw">unreachable</span>, <span class="tok-comment">// File was not locked in exclusive mode.</span> </span> <span class="line" id="L1601"> <span class="tok-kw">else</span> => \|e\| <span class="tok-kw">return</span> e,</span> <span class="line" id="L1602"> };</span> <span class="line" id="L1603"> <span class="tok-kw">return</span> windows.UnlockFile(</span> <span class="line" id="L1604"> file.handle,</span> <span class="line" id="L1605"> &io_status_block,</span> <span class="line" id="L1606"> &range_off,</span> <span class="line" id="L1607"> &range_len,</span> <span class="line" id="L1608"> <span class="tok-null">null</span>,</span> <span class="line" id="L1609"> ) <span class="tok-kw">catch</span> \|err\| <span class="tok-kw">switch</span> (err) {</span> <span class="line" id="L1610"> <span class="tok-kw">error</span>.RangeNotLocked => <span class="tok-kw">unreachable</span>, <span class="tok-comment">// File was not locked.</span> </span> <span class="line" id="L1611"> <span class="tok-kw">error</span>.Unexpected => <span class="tok-kw">unreachable</span>, <span class="tok-comment">// Resource deallocation must succeed.</span> </span> <span class="line" id="L1612"> };</span> <span class="line" id="L1613"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L1614"> <span class="tok-kw">return</span> os.flock(file.handle, os.LOCK.SH \| os.LOCK.NB) <span class="tok-kw">catch</span> \|err\| <span class="tok-kw">switch</span> (err) {</span> <span class="line" id="L1615"> <span class="tok-kw">error</span>.WouldBlock => <span class="tok-kw">unreachable</span>, <span class="tok-comment">// File was not locked in exclusive mode.</span> </span> <span class="line" id="L1616"> <span class="tok-kw">else</span> => \|e\| <span class="tok-kw">return</span> e,</span> <span class="line" id="L1617"> };</span> <span class="line" id="L1618"> }</span> <span class="line" id="L1619"> }</span> <span class="line" id="L1620">};</span> <span class="line" id="L1621"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/fs/wasi.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>fs/wasi.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"std"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> builtin = <span class="tok-builtin">@import</span>(<span class="tok-str">"builtin"</span>);</span> <span class="line" id="L3"><span class="tok-kw">const</span> os = std.os;</span> <span class="line" id="L4"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L5"><span class="tok-kw">const</span> math = std.math;</span> <span class="line" id="L6"><span class="tok-kw">const</span> fs = std.fs;</span> <span class="line" id="L7"><span class="tok-kw">const</span> assert = std.debug.assert;</span> <span class="line" id="L8"><span class="tok-kw">const</span> Allocator = mem.Allocator;</span> <span class="line" id="L9"><span class="tok-kw">const</span> wasi = std.os.wasi;</span> <span class="line" id="L10"><span class="tok-kw">const</span> fd_t = wasi.fd_t;</span> <span class="line" id="L11"><span class="tok-kw">const</span> prestat_t = wasi.prestat_t;</span> <span class="line" id="L12"></span> <span class="line" id="L13"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> Preopens = <span class="tok-kw">struct</span> {</span> <span class="line" id="L14"> <span class="tok-comment">// Indexed by file descriptor number.</span> </span> <span class="line" id="L15"> names: []<span class="tok-kw">const</span> []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L16"></span> <span class="line" id="L17"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">find</span>(p: Preopens, name: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) ?os.fd_t {</span> <span class="line" id="L18"> <span class="tok-kw">for</span> (p.names, <span class="tok-number">0</span>..) \|elem_name, i\| {</span> <span class="line" id="L19"> <span class="tok-kw">if</span> (mem.eql(<span class="tok-type">u8</span>, elem_name, name)) {</span> <span class="line" id="L20"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(os.fd_t, <span class="tok-builtin">@intCast</span>(i));</span> <span class="line" id="L21"> }</span> <span class="line" id="L22"> }</span> <span class="line" id="L23"> <span class="tok-kw">return</span> <span class="tok-null">null</span>;</span> <span class="line" id="L24"> }</span> <span class="line" id="L25">};</span> <span class="line" id="L26"></span> <span class="line" id="L27"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">preopensAlloc</span>(gpa: Allocator) Allocator.Error!Preopens {</span> <span class="line" id="L28"> <span class="tok-kw">var</span> names: std.ArrayListUnmanaged([]<span class="tok-kw">const</span> <span class="tok-type">u8</span>) = .{};</span> <span class="line" id="L29"> <span class="tok-kw">defer</span> names.deinit(gpa);</span> <span class="line" id="L30"></span> <span class="line" id="L31"> <span class="tok-kw">try</span> names.ensureUnusedCapacity(gpa, <span class="tok-number">3</span>);</span> <span class="line" id="L32"></span> <span class="line" id="L33"> names.appendAssumeCapacity(<span class="tok-str">"stdin"</span>); <span class="tok-comment">// 0</span> </span> <span class="line" id="L34"> names.appendAssumeCapacity(<span class="tok-str">"stdout"</span>); <span class="tok-comment">// 1</span> </span> <span class="line" id="L35"> names.appendAssumeCapacity(<span class="tok-str">"stderr"</span>); <span class="tok-comment">// 2</span> </span> <span class="line" id="L36"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L37"> <span class="tok-kw">const</span> fd = <span class="tok-builtin">@as</span>(wasi.fd_t, <span class="tok-builtin">@intCast</span>(names.items.len));</span> <span class="line" id="L38"> <span class="tok-kw">var</span> prestat: prestat_t = <span class="tok-null">undefined</span>;</span> <span class="line" id="L39"> <span class="tok-kw">switch</span> (wasi.fd_prestat_get(fd, &prestat)) {</span> <span class="line" id="L40"> .SUCCESS => {},</span> <span class="line" id="L41"> .OPNOTSUPP, .BADF => <span class="tok-kw">return</span> .{ .names = <span class="tok-kw">try</span> names.toOwnedSlice(gpa) },</span> <span class="line" id="L42"> <span class="tok-kw">else</span> => <span class="tok-builtin">@panic</span>(<span class="tok-str">"fd_prestat_get: unexpected error"</span>),</span> <span class="line" id="L43"> }</span> <span class="line" id="L44"> <span class="tok-kw">try</span> names.ensureUnusedCapacity(gpa, <span class="tok-number">1</span>);</span> <span class="line" id="L45"> <span class="tok-comment">// This length does not include a null byte. Let's keep it this way to</span> </span> <span class="line" id="L46"> <span class="tok-comment">// gently encourage WASI implementations to behave properly.</span> </span> <span class="line" id="L47"> <span class="tok-kw">const</span> name_len = prestat.u.dir.pr_name_len;</span> <span class="line" id="L48"> <span class="tok-kw">const</span> name = <span class="tok-kw">try</span> gpa.alloc(<span class="tok-type">u8</span>, name_len);</span> <span class="line" id="L49"> <span class="tok-kw">errdefer</span> gpa.free(name);</span> <span class="line" id="L50"> <span class="tok-kw">switch</span> (wasi.fd_prestat_dir_name(fd, name.ptr, name.len)) {</span> <span class="line" id="L51"> .SUCCESS => {},</span> <span class="line" id="L52"> <span class="tok-kw">else</span> => <span class="tok-builtin">@panic</span>(<span class="tok-str">"fd_prestat_dir_name: unexpected error"</span>),</span> <span class="line" id="L53"> }</span> <span class="line" id="L54"> names.appendAssumeCapacity(name);</span> <span class="line" id="L55"> }</span> <span class="line" id="L56">}</span> <span class="line" id="L57"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/fs/get_app_data_dir.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>fs/get_app_data_dir.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"../std.zig"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> builtin = <span class="tok-builtin">@import</span>(<span class="tok-str">"builtin"</span>);</span> <span class="line" id="L3"><span class="tok-kw">const</span> unicode = std.unicode;</span> <span class="line" id="L4"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L5"><span class="tok-kw">const</span> fs = std.fs;</span> <span class="line" id="L6"><span class="tok-kw">const</span> os = std.os;</span> <span class="line" id="L7"></span> <span class="line" id="L8"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> GetAppDataDirError = <span class="tok-kw">error</span>{</span> <span class="line" id="L9"> OutOfMemory,</span> <span class="line" id="L10"> AppDataDirUnavailable,</span> <span class="line" id="L11">};</span> <span class="line" id="L12"></span> <span class="line" id="L13"><span class="tok-comment">/// Caller owns returned memory.</span></span> <span class="line" id="L14"><span class="tok-comment">/// TODO determine if we can remove the allocator requirement</span></span> <span class="line" id="L15"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">getAppDataDir</span>(allocator: mem.Allocator, appname: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) GetAppDataDirError![]<span class="tok-type">u8</span> {</span> <span class="line" id="L16"> <span class="tok-kw">switch</span> (builtin.os.tag) {</span> <span class="line" id="L17"> .windows => {</span> <span class="line" id="L18"> <span class="tok-kw">var</span> dir_path_ptr: [:<span class="tok-number">0</span>]<span class="tok-type">u16</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L19"> <span class="tok-kw">switch</span> (os.windows.shell32.SHGetKnownFolderPath(</span> <span class="line" id="L20"> &os.windows.FOLDERID_LocalAppData,</span> <span class="line" id="L21"> os.windows.KF_FLAG_CREATE,</span> <span class="line" id="L22"> <span class="tok-null">null</span>,</span> <span class="line" id="L23"> &dir_path_ptr,</span> <span class="line" id="L24"> )) {</span> <span class="line" id="L25"> os.windows.S_OK => {</span> <span class="line" id="L26"> <span class="tok-kw">defer</span> os.windows.ole32.CoTaskMemFree(<span class="tok-builtin">@as</span>(<span class="tok-type">anyopaque</span>, <span class="tok-builtin">@ptrCast</span>(dir_path_ptr)));</span> <span class="line" id="L27"> <span class="tok-kw">const</span> global_dir = unicode.utf16leToUtf8Alloc(allocator, mem.sliceTo(dir_path_ptr, <span class="tok-number">0</span>)) <span class="tok-kw">catch</span> \|err\| <span class="tok-kw">switch</span> (err) {</span> <span class="line" id="L28"> <span class="tok-kw">error</span>.UnexpectedSecondSurrogateHalf => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.AppDataDirUnavailable,</span> <span class="line" id="L29"> <span class="tok-kw">error</span>.ExpectedSecondSurrogateHalf => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.AppDataDirUnavailable,</span> <span class="line" id="L30"> <span class="tok-kw">error</span>.DanglingSurrogateHalf => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.AppDataDirUnavailable,</span> <span class="line" id="L31"> <span class="tok-kw">error</span>.OutOfMemory => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.OutOfMemory,</span> <span class="line" id="L32"> };</span> <span class="line" id="L33"> <span class="tok-kw">defer</span> allocator.free(global_dir);</span> <span class="line" id="L34"> <span class="tok-kw">return</span> fs.path.join(allocator, &[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ global_dir, appname });</span> <span class="line" id="L35"> },</span> <span class="line" id="L36"> os.windows.E_OUTOFMEMORY => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.OutOfMemory,</span> <span class="line" id="L37"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.AppDataDirUnavailable,</span> <span class="line" id="L38"> }</span> <span class="line" id="L39"> },</span> <span class="line" id="L40"> .macos => {</span> <span class="line" id="L41"> <span class="tok-kw">const</span> home_dir = os.getenv(<span class="tok-str">"HOME"</span>) <span class="tok-kw">orelse</span> {</span> <span class="line" id="L42"> <span class="tok-comment">// TODO look in /etc/passwd</span> </span> <span class="line" id="L43"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.AppDataDirUnavailable;</span> <span class="line" id="L44"> };</span> <span class="line" id="L45"> <span class="tok-kw">return</span> fs.path.join(allocator, &[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ home_dir, <span class="tok-str">"Library"</span>, <span class="tok-str">"Application Support"</span>, appname });</span> <span class="line" id="L46"> },</span> <span class="line" id="L47"> .linux, .freebsd, .netbsd, .dragonfly, .openbsd, .solaris => {</span> <span class="line" id="L48"> <span class="tok-kw">if</span> (os.getenv(<span class="tok-str">"XDG_DATA_HOME"</span>)) \|xdg\| {</span> <span class="line" id="L49"> <span class="tok-kw">return</span> fs.path.join(allocator, &[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ xdg, appname });</span> <span class="line" id="L50"> }</span> <span class="line" id="L51"></span> <span class="line" id="L52"> <span class="tok-kw">const</span> home_dir = os.getenv(<span class="tok-str">"HOME"</span>) <span class="tok-kw">orelse</span> {</span> <span class="line" id="L53"> <span class="tok-comment">// TODO look in /etc/passwd</span> </span> <span class="line" id="L54"> <span class="tok-kw">return</span> <span class="tok-kw">error</span>.AppDataDirUnavailable;</span> <span class="line" id="L55"> };</span> <span class="line" id="L56"> <span class="tok-kw">return</span> fs.path.join(allocator, &[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ home_dir, <span class="tok-str">".local"</span>, <span class="tok-str">"share"</span>, appname });</span> <span class="line" id="L57"> },</span> <span class="line" id="L58"> .haiku => {</span> <span class="line" id="L59"> <span class="tok-kw">var</span> dir_path_ptr: [*:<span class="tok-number">0</span>]<span class="tok-type">u8</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L60"> <span class="tok-comment">// TODO look into directory_which</span> </span> <span class="line" id="L61"> <span class="tok-kw">const</span> be_user_settings = <span class="tok-number">0xbbe</span>;</span> <span class="line" id="L62"> <span class="tok-kw">const</span> rc = os.system.find_directory(be_user_settings, -<span class="tok-number">1</span>, <span class="tok-null">true</span>, dir_path_ptr, <span class="tok-number">1</span>);</span> <span class="line" id="L63"> <span class="tok-kw">const</span> settings_dir = <span class="tok-kw">try</span> allocator.dupeZ(<span class="tok-type">u8</span>, mem.sliceTo(dir_path_ptr, <span class="tok-number">0</span>));</span> <span class="line" id="L64"> <span class="tok-kw">defer</span> allocator.free(settings_dir);</span> <span class="line" id="L65"> <span class="tok-kw">switch</span> (rc) {</span> <span class="line" id="L66"> <span class="tok-number">0</span> => <span class="tok-kw">return</span> fs.path.join(allocator, &[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ settings_dir, appname }),</span> <span class="line" id="L67"> <span class="tok-kw">else</span> => <span class="tok-kw">return</span> <span class="tok-kw">error</span>.AppDataDirUnavailable,</span> <span class="line" id="L68"> }</span> <span class="line" id="L69"> },</span> <span class="line" id="L70"> <span class="tok-kw">else</span> => <span class="tok-builtin">@compileError</span>(<span class="tok-str">"Unsupported OS"</span>),</span> <span class="line" id="L71"> }</span> <span class="line" id="L72">}</span> <span class="line" id="L73"></span> <span class="line" id="L74"><span class="tok-kw">test</span> <span class="tok-str">"getAppDataDir"</span> {</span> <span class="line" id="L75"> <span class="tok-kw">if</span> (builtin.os.tag == .wasi) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SkipZigTest;</span> <span class="line" id="L76"></span> <span class="line" id="L77"> <span class="tok-comment">// We can't actually validate the result</span> </span> <span class="line" id="L78"> <span class="tok-kw">const</span> dir = getAppDataDir(std.testing.allocator, <span class="tok-str">"zig"</span>) <span class="tok-kw">catch</span> <span class="tok-kw">return</span>;</span> <span class="line" id="L79"> <span class="tok-kw">defer</span> std.testing.allocator.free(dir);</span> <span class="line" id="L80">}</span> <span class="line" id="L81"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/fs/path.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>fs/path.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> builtin = <span class="tok-builtin">@import</span>(<span class="tok-str">"builtin"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"../std.zig"</span>);</span> <span class="line" id="L3"><span class="tok-kw">const</span> debug = std.debug;</span> <span class="line" id="L4"><span class="tok-kw">const</span> assert = debug.assert;</span> <span class="line" id="L5"><span class="tok-kw">const</span> testing = std.testing;</span> <span class="line" id="L6"><span class="tok-kw">const</span> mem = std.mem;</span> <span class="line" id="L7"><span class="tok-kw">const</span> fmt = std.fmt;</span> <span class="line" id="L8"><span class="tok-kw">const</span> ascii = std.ascii;</span> <span class="line" id="L9"><span class="tok-kw">const</span> Allocator = mem.Allocator;</span> <span class="line" id="L10"><span class="tok-kw">const</span> math = std.math;</span> <span class="line" id="L11"><span class="tok-kw">const</span> windows = std.os.windows;</span> <span class="line" id="L12"><span class="tok-kw">const</span> os = std.os;</span> <span class="line" id="L13"><span class="tok-kw">const</span> fs = std.fs;</span> <span class="line" id="L14"><span class="tok-kw">const</span> process = std.process;</span> <span class="line" id="L15"><span class="tok-kw">const</span> native_os = builtin.target.os.tag;</span> <span class="line" id="L16"></span> <span class="line" id="L17"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> sep_windows = <span class="tok-str">'\\'</span>;</span> <span class="line" id="L18"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> sep_posix = <span class="tok-str">'/'</span>;</span> <span class="line" id="L19"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> sep = <span class="tok-kw">switch</span> (native_os) {</span> <span class="line" id="L20"> .windows, .uefi => sep_windows,</span> <span class="line" id="L21"> <span class="tok-kw">else</span> => sep_posix,</span> <span class="line" id="L22">};</span> <span class="line" id="L23"></span> <span class="line" id="L24"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> sep_str_windows = <span class="tok-str">"\\"</span>;</span> <span class="line" id="L25"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> sep_str_posix = <span class="tok-str">"/"</span>;</span> <span class="line" id="L26"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> sep_str = <span class="tok-kw">switch</span> (native_os) {</span> <span class="line" id="L27"> .windows, .uefi => sep_str_windows,</span> <span class="line" id="L28"> <span class="tok-kw">else</span> => sep_str_posix,</span> <span class="line" id="L29">};</span> <span class="line" id="L30"></span> <span class="line" id="L31"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> delimiter_windows = <span class="tok-str">';'</span>;</span> <span class="line" id="L32"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> delimiter_posix = <span class="tok-str">':'</span>;</span> <span class="line" id="L33"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> delimiter = <span class="tok-kw">if</span> (native_os == .windows) delimiter_windows <span class="tok-kw">else</span> delimiter_posix;</span> <span class="line" id="L34"></span> <span class="line" id="L35"><span class="tok-comment">/// Returns if the given byte is a valid path separator</span></span> <span class="line" id="L36"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">isSep</span>(byte: <span class="tok-type">u8</span>) <span class="tok-type">bool</span> {</span> <span class="line" id="L37"> <span class="tok-kw">return</span> <span class="tok-kw">switch</span> (native_os) {</span> <span class="line" id="L38"> .windows => byte == <span class="tok-str">'/'</span> <span class="tok-kw">or</span> byte == <span class="tok-str">'\\'</span>,</span> <span class="line" id="L39"> .uefi => byte == <span class="tok-str">'\\'</span>,</span> <span class="line" id="L40"> <span class="tok-kw">else</span> => byte == <span class="tok-str">'/'</span>,</span> <span class="line" id="L41"> };</span> <span class="line" id="L42">}</span> <span class="line" id="L43"></span> <span class="line" id="L44"><span class="tok-comment">/// This is different from mem.join in that the separator will not be repeated if</span></span> <span class="line" id="L45"><span class="tok-comment">/// it is found at the end or beginning of a pair of consecutive paths.</span></span> <span class="line" id="L46"><span class="tok-kw">fn</span> <span class="tok-fn">joinSepMaybeZ</span>(allocator: Allocator, separator: <span class="tok-type">u8</span>, <span class="tok-kw">comptime</span> sepPredicate: <span class="tok-kw">fn</span> (<span class="tok-type">u8</span>) <span class="tok-type">bool</span>, paths: []<span class="tok-kw">const</span> []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, zero: <span class="tok-type">bool</span>) ![]<span class="tok-type">u8</span> {</span> <span class="line" id="L47"> <span class="tok-kw">if</span> (paths.len == <span class="tok-number">0</span>) <span class="tok-kw">return</span> <span class="tok-kw">if</span> (zero) <span class="tok-kw">try</span> allocator.dupe(<span class="tok-type">u8</span>, &[<span class="tok-number">1</span>]<span class="tok-type">u8</span>{<span class="tok-number">0</span>}) <span class="tok-kw">else</span> &[<span class="tok-number">0</span>]<span class="tok-type">u8</span>{};</span> <span class="line" id="L48"></span> <span class="line" id="L49"> <span class="tok-comment">// Find first non-empty path index.</span> </span> <span class="line" id="L50"> <span class="tok-kw">const</span> first_path_index = blk: {</span> <span class="line" id="L51"> <span class="tok-kw">for</span> (paths, <span class="tok-number">0</span>..) \|path, index\| {</span> <span class="line" id="L52"> <span class="tok-kw">if</span> (path.len == <span class="tok-number">0</span>) <span class="tok-kw">continue</span> <span class="tok-kw">else</span> <span class="tok-kw">break</span> :blk index;</span> <span class="line" id="L53"> }</span> <span class="line" id="L54"></span> <span class="line" id="L55"> <span class="tok-comment">// All paths provided were empty, so return early.</span> </span> <span class="line" id="L56"> <span class="tok-kw">return</span> <span class="tok-kw">if</span> (zero) <span class="tok-kw">try</span> allocator.dupe(<span class="tok-type">u8</span>, &[<span class="tok-number">1</span>]<span class="tok-type">u8</span>{<span class="tok-number">0</span>}) <span class="tok-kw">else</span> &[<span class="tok-number">0</span>]<span class="tok-type">u8</span>{};</span> <span class="line" id="L57"> };</span> <span class="line" id="L58"></span> <span class="line" id="L59"> <span class="tok-comment">// Calculate length needed for resulting joined path buffer.</span> </span> <span class="line" id="L60"> <span class="tok-kw">const</span> total_len = blk: {</span> <span class="line" id="L61"> <span class="tok-kw">var</span> sum: <span class="tok-type">usize</span> = paths[first_path_index].len;</span> <span class="line" id="L62"> <span class="tok-kw">var</span> prev_path = paths[first_path_index];</span> <span class="line" id="L63"> assert(prev_path.len > <span class="tok-number">0</span>);</span> <span class="line" id="L64"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = first_path_index + <span class="tok-number">1</span>;</span> <span class="line" id="L65"> <span class="tok-kw">while</span> (i < paths.len) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L66"> <span class="tok-kw">const</span> this_path = paths[i];</span> <span class="line" id="L67"> <span class="tok-kw">if</span> (this_path.len == <span class="tok-number">0</span>) <span class="tok-kw">continue</span>;</span> <span class="line" id="L68"> <span class="tok-kw">const</span> prev_sep = sepPredicate(prev_path[prev_path.len - <span class="tok-number">1</span>]);</span> <span class="line" id="L69"> <span class="tok-kw">const</span> this_sep = sepPredicate(this_path[<span class="tok-number">0</span>]);</span> <span class="line" id="L70"> sum += <span class="tok-builtin">@intFromBool</span>(!prev_sep <span class="tok-kw">and</span> !this_sep);</span> <span class="line" id="L71"> sum += <span class="tok-kw">if</span> (prev_sep <span class="tok-kw">and</span> this_sep) this_path.len - <span class="tok-number">1</span> <span class="tok-kw">else</span> this_path.len;</span> <span class="line" id="L72"> prev_path = this_path;</span> <span class="line" id="L73"> }</span> <span class="line" id="L74"></span> <span class="line" id="L75"> <span class="tok-kw">if</span> (zero) sum += <span class="tok-number">1</span>;</span> <span class="line" id="L76"> <span class="tok-kw">break</span> :blk sum;</span> <span class="line" id="L77"> };</span> <span class="line" id="L78"></span> <span class="line" id="L79"> <span class="tok-kw">const</span> buf = <span class="tok-kw">try</span> allocator.alloc(<span class="tok-type">u8</span>, total_len);</span> <span class="line" id="L80"> <span class="tok-kw">errdefer</span> allocator.free(buf);</span> <span class="line" id="L81"></span> <span class="line" id="L82"> <span class="tok-builtin">@memcpy</span>(buf[<span class="tok-number">0</span>..paths[first_path_index].len], paths[first_path_index]);</span> <span class="line" id="L83"> <span class="tok-kw">var</span> buf_index: <span class="tok-type">usize</span> = paths[first_path_index].len;</span> <span class="line" id="L84"> <span class="tok-kw">var</span> prev_path = paths[first_path_index];</span> <span class="line" id="L85"> assert(prev_path.len > <span class="tok-number">0</span>);</span> <span class="line" id="L86"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = first_path_index + <span class="tok-number">1</span>;</span> <span class="line" id="L87"> <span class="tok-kw">while</span> (i < paths.len) : (i += <span class="tok-number">1</span>) {</span> <span class="line" id="L88"> <span class="tok-kw">const</span> this_path = paths[i];</span> <span class="line" id="L89"> <span class="tok-kw">if</span> (this_path.len == <span class="tok-number">0</span>) <span class="tok-kw">continue</span>;</span> <span class="line" id="L90"> <span class="tok-kw">const</span> prev_sep = sepPredicate(prev_path[prev_path.len - <span class="tok-number">1</span>]);</span> <span class="line" id="L91"> <span class="tok-kw">const</span> this_sep = sepPredicate(this_path[<span class="tok-number">0</span>]);</span> <span class="line" id="L92"> <span class="tok-kw">if</span> (!prev_sep <span class="tok-kw">and</span> !this_sep) {</span> <span class="line" id="L93"> buf[buf_index] = separator;</span> <span class="line" id="L94"> buf_index += <span class="tok-number">1</span>;</span> <span class="line" id="L95"> }</span> <span class="line" id="L96"> <span class="tok-kw">const</span> adjusted_path = <span class="tok-kw">if</span> (prev_sep <span class="tok-kw">and</span> this_sep) this_path[<span class="tok-number">1</span>..] <span class="tok-kw">else</span> this_path;</span> <span class="line" id="L97"> <span class="tok-builtin">@memcpy</span>(buf[buf_index..][<span class="tok-number">0</span>..adjusted_path.len], adjusted_path);</span> <span class="line" id="L98"> buf_index += adjusted_path.len;</span> <span class="line" id="L99"> prev_path = this_path;</span> <span class="line" id="L100"> }</span> <span class="line" id="L101"></span> <span class="line" id="L102"> <span class="tok-kw">if</span> (zero) buf[buf.len - <span class="tok-number">1</span>] = <span class="tok-number">0</span>;</span> <span class="line" id="L103"></span> <span class="line" id="L104"> <span class="tok-comment">// No need for shrink since buf is exactly the correct size.</span> </span> <span class="line" id="L105"> <span class="tok-kw">return</span> buf;</span> <span class="line" id="L106">}</span> <span class="line" id="L107"></span> <span class="line" id="L108"><span class="tok-comment">/// Naively combines a series of paths with the native path separator.</span></span> <span class="line" id="L109"><span class="tok-comment">/// Allocates memory for the result, which must be freed by the caller.</span></span> <span class="line" id="L110"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">join</span>(allocator: Allocator, paths: []<span class="tok-kw">const</span> []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) ![]<span class="tok-type">u8</span> {</span> <span class="line" id="L111"> <span class="tok-kw">return</span> joinSepMaybeZ(allocator, sep, isSep, paths, <span class="tok-null">false</span>);</span> <span class="line" id="L112">}</span> <span class="line" id="L113"></span> <span class="line" id="L114"><span class="tok-comment">/// Naively combines a series of paths with the native path separator and null terminator.</span></span> <span class="line" id="L115"><span class="tok-comment">/// Allocates memory for the result, which must be freed by the caller.</span></span> <span class="line" id="L116"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">joinZ</span>(allocator: Allocator, paths: []<span class="tok-kw">const</span> []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) ![:<span class="tok-number">0</span>]<span class="tok-type">u8</span> {</span> <span class="line" id="L117"> <span class="tok-kw">const</span> out = <span class="tok-kw">try</span> joinSepMaybeZ(allocator, sep, isSep, paths, <span class="tok-null">true</span>);</span> <span class="line" id="L118"> <span class="tok-kw">return</span> out[<span class="tok-number">0</span> .. out.len - <span class="tok-number">1</span> :<span class="tok-number">0</span>];</span> <span class="line" id="L119">}</span> <span class="line" id="L120"></span> <span class="line" id="L121"><span class="tok-kw">fn</span> <span class="tok-fn">testJoinMaybeZUefi</span>(paths: []<span class="tok-kw">const</span> []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, expected: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, zero: <span class="tok-type">bool</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L122"> <span class="tok-kw">const</span> uefiIsSep = <span class="tok-kw">struct</span> {</span> <span class="line" id="L123"> <span class="tok-kw">fn</span> <span class="tok-fn">isSep</span>(byte: <span class="tok-type">u8</span>) <span class="tok-type">bool</span> {</span> <span class="line" id="L124"> <span class="tok-kw">return</span> byte == <span class="tok-str">'\\'</span>;</span> <span class="line" id="L125"> }</span> <span class="line" id="L126"> }.isSep;</span> <span class="line" id="L127"> <span class="tok-kw">const</span> actual = <span class="tok-kw">try</span> joinSepMaybeZ(testing.allocator, sep_windows, uefiIsSep, paths, zero);</span> <span class="line" id="L128"> <span class="tok-kw">defer</span> testing.allocator.free(actual);</span> <span class="line" id="L129"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, expected, <span class="tok-kw">if</span> (zero) actual[<span class="tok-number">0</span> .. actual.len - <span class="tok-number">1</span> :<span class="tok-number">0</span>] <span class="tok-kw">else</span> actual);</span> <span class="line" id="L130">}</span> <span class="line" id="L131"></span> <span class="line" id="L132"><span class="tok-kw">fn</span> <span class="tok-fn">testJoinMaybeZWindows</span>(paths: []<span class="tok-kw">const</span> []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, expected: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, zero: <span class="tok-type">bool</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L133"> <span class="tok-kw">const</span> windowsIsSep = <span class="tok-kw">struct</span> {</span> <span class="line" id="L134"> <span class="tok-kw">fn</span> <span class="tok-fn">isSep</span>(byte: <span class="tok-type">u8</span>) <span class="tok-type">bool</span> {</span> <span class="line" id="L135"> <span class="tok-kw">return</span> byte == <span class="tok-str">'/'</span> <span class="tok-kw">or</span> byte == <span class="tok-str">'\\'</span>;</span> <span class="line" id="L136"> }</span> <span class="line" id="L137"> }.isSep;</span> <span class="line" id="L138"> <span class="tok-kw">const</span> actual = <span class="tok-kw">try</span> joinSepMaybeZ(testing.allocator, sep_windows, windowsIsSep, paths, zero);</span> <span class="line" id="L139"> <span class="tok-kw">defer</span> testing.allocator.free(actual);</span> <span class="line" id="L140"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, expected, <span class="tok-kw">if</span> (zero) actual[<span class="tok-number">0</span> .. actual.len - <span class="tok-number">1</span> :<span class="tok-number">0</span>] <span class="tok-kw">else</span> actual);</span> <span class="line" id="L141">}</span> <span class="line" id="L142"></span> <span class="line" id="L143"><span class="tok-kw">fn</span> <span class="tok-fn">testJoinMaybeZPosix</span>(paths: []<span class="tok-kw">const</span> []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, expected: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, zero: <span class="tok-type">bool</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L144"> <span class="tok-kw">const</span> posixIsSep = <span class="tok-kw">struct</span> {</span> <span class="line" id="L145"> <span class="tok-kw">fn</span> <span class="tok-fn">isSep</span>(byte: <span class="tok-type">u8</span>) <span class="tok-type">bool</span> {</span> <span class="line" id="L146"> <span class="tok-kw">return</span> byte == <span class="tok-str">'/'</span>;</span> <span class="line" id="L147"> }</span> <span class="line" id="L148"> }.isSep;</span> <span class="line" id="L149"> <span class="tok-kw">const</span> actual = <span class="tok-kw">try</span> joinSepMaybeZ(testing.allocator, sep_posix, posixIsSep, paths, zero);</span> <span class="line" id="L150"> <span class="tok-kw">defer</span> testing.allocator.free(actual);</span> <span class="line" id="L151"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, expected, <span class="tok-kw">if</span> (zero) actual[<span class="tok-number">0</span> .. actual.len - <span class="tok-number">1</span> :<span class="tok-number">0</span>] <span class="tok-kw">else</span> actual);</span> <span class="line" id="L152">}</span> <span class="line" id="L153"></span> <span class="line" id="L154"><span class="tok-kw">test</span> <span class="tok-str">"join"</span> {</span> <span class="line" id="L155"> {</span> <span class="line" id="L156"> <span class="tok-kw">const</span> actual: []<span class="tok-type">u8</span> = <span class="tok-kw">try</span> join(testing.allocator, &[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{});</span> <span class="line" id="L157"> <span class="tok-kw">defer</span> testing.allocator.free(actual);</span> <span class="line" id="L158"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, <span class="tok-str">""</span>, actual);</span> <span class="line" id="L159"> }</span> <span class="line" id="L160"> {</span> <span class="line" id="L161"> <span class="tok-kw">const</span> actual: [:<span class="tok-number">0</span>]<span class="tok-type">u8</span> = <span class="tok-kw">try</span> joinZ(testing.allocator, &[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{});</span> <span class="line" id="L162"> <span class="tok-kw">defer</span> testing.allocator.free(actual);</span> <span class="line" id="L163"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, <span class="tok-str">""</span>, actual);</span> <span class="line" id="L164"> }</span> <span class="line" id="L165"> <span class="tok-kw">for</span> (&[_]<span class="tok-type">bool</span>{ <span class="tok-null">false</span>, <span class="tok-null">true</span> }) \|zero\| {</span> <span class="line" id="L166"> <span class="tok-kw">try</span> testJoinMaybeZWindows(&[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{}, <span class="tok-str">""</span>, zero);</span> <span class="line" id="L167"> <span class="tok-kw">try</span> testJoinMaybeZWindows(&[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ <span class="tok-str">"c:\\a\\b"</span>, <span class="tok-str">"c"</span> }, <span class="tok-str">"c:\\a\\b\\c"</span>, zero);</span> <span class="line" id="L168"> <span class="tok-kw">try</span> testJoinMaybeZWindows(&[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ <span class="tok-str">"c:\\a\\b"</span>, <span class="tok-str">"c"</span> }, <span class="tok-str">"c:\\a\\b\\c"</span>, zero);</span> <span class="line" id="L169"> <span class="tok-kw">try</span> testJoinMaybeZWindows(&[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ <span class="tok-str">"c:\\a\\b\\"</span>, <span class="tok-str">"c"</span> }, <span class="tok-str">"c:\\a\\b\\c"</span>, zero);</span> <span class="line" id="L170"></span> <span class="line" id="L171"> <span class="tok-kw">try</span> testJoinMaybeZWindows(&[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ <span class="tok-str">"c:\\"</span>, <span class="tok-str">"a"</span>, <span class="tok-str">"b\\"</span>, <span class="tok-str">"c"</span> }, <span class="tok-str">"c:\\a\\b\\c"</span>, zero);</span> <span class="line" id="L172"> <span class="tok-kw">try</span> testJoinMaybeZWindows(&[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ <span class="tok-str">"c:\\a\\"</span>, <span class="tok-str">"b\\"</span>, <span class="tok-str">"c"</span> }, <span class="tok-str">"c:\\a\\b\\c"</span>, zero);</span> <span class="line" id="L173"></span> <span class="line" id="L174"> <span class="tok-kw">try</span> testJoinMaybeZWindows(</span> <span class="line" id="L175"> &[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ <span class="tok-str">"c:\\home\\andy\\dev\\zig\\build\\lib\\zig\\std"</span>, <span class="tok-str">"io.zig"</span> },</span> <span class="line" id="L176"> <span class="tok-str">"c:\\home\\andy\\dev\\zig\\build\\lib\\zig\\std\\io.zig"</span>,</span> <span class="line" id="L177"> zero,</span> <span class="line" id="L178"> );</span> <span class="line" id="L179"></span> <span class="line" id="L180"> <span class="tok-kw">try</span> testJoinMaybeZUefi(&[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ <span class="tok-str">"EFI"</span>, <span class="tok-str">"Boot"</span>, <span class="tok-str">"bootx64.efi"</span> }, <span class="tok-str">"EFI\\Boot\\bootx64.efi"</span>, zero);</span> <span class="line" id="L181"> <span class="tok-kw">try</span> testJoinMaybeZUefi(&[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ <span class="tok-str">"EFI\\Boot"</span>, <span class="tok-str">"bootx64.efi"</span> }, <span class="tok-str">"EFI\\Boot\\bootx64.efi"</span>, zero);</span> <span class="line" id="L182"> <span class="tok-kw">try</span> testJoinMaybeZUefi(&[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ <span class="tok-str">"EFI\\"</span>, <span class="tok-str">"\\Boot"</span>, <span class="tok-str">"bootx64.efi"</span> }, <span class="tok-str">"EFI\\Boot\\bootx64.efi"</span>, zero);</span> <span class="line" id="L183"> <span class="tok-kw">try</span> testJoinMaybeZUefi(&[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ <span class="tok-str">"EFI\\"</span>, <span class="tok-str">"\\Boot\\"</span>, <span class="tok-str">"\\bootx64.efi"</span> }, <span class="tok-str">"EFI\\Boot\\bootx64.efi"</span>, zero);</span> <span class="line" id="L184"></span> <span class="line" id="L185"> <span class="tok-kw">try</span> testJoinMaybeZWindows(&[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ <span class="tok-str">"c:\\"</span>, <span class="tok-str">"a"</span>, <span class="tok-str">"b/"</span>, <span class="tok-str">"c"</span> }, <span class="tok-str">"c:\\a\\b/c"</span>, zero);</span> <span class="line" id="L186"> <span class="tok-kw">try</span> testJoinMaybeZWindows(&[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ <span class="tok-str">"c:\\a/"</span>, <span class="tok-str">"b\\"</span>, <span class="tok-str">"/c"</span> }, <span class="tok-str">"c:\\a/b\\c"</span>, zero);</span> <span class="line" id="L187"></span> <span class="line" id="L188"> <span class="tok-kw">try</span> testJoinMaybeZWindows(&[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ <span class="tok-str">""</span>, <span class="tok-str">"c:\\"</span>, <span class="tok-str">""</span>, <span class="tok-str">""</span>, <span class="tok-str">"a"</span>, <span class="tok-str">"b\\"</span>, <span class="tok-str">"c"</span>, <span class="tok-str">""</span> }, <span class="tok-str">"c:\\a\\b\\c"</span>, zero);</span> <span class="line" id="L189"> <span class="tok-kw">try</span> testJoinMaybeZWindows(&[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ <span class="tok-str">"c:\\a/"</span>, <span class="tok-str">""</span>, <span class="tok-str">"b\\"</span>, <span class="tok-str">""</span>, <span class="tok-str">"/c"</span> }, <span class="tok-str">"c:\\a/b\\c"</span>, zero);</span> <span class="line" id="L190"> <span class="tok-kw">try</span> testJoinMaybeZWindows(&[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ <span class="tok-str">""</span>, <span class="tok-str">""</span> }, <span class="tok-str">""</span>, zero);</span> <span class="line" id="L191"></span> <span class="line" id="L192"> <span class="tok-kw">try</span> testJoinMaybeZPosix(&[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{}, <span class="tok-str">""</span>, zero);</span> <span class="line" id="L193"> <span class="tok-kw">try</span> testJoinMaybeZPosix(&[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ <span class="tok-str">"/a/b"</span>, <span class="tok-str">"c"</span> }, <span class="tok-str">"/a/b/c"</span>, zero);</span> <span class="line" id="L194"> <span class="tok-kw">try</span> testJoinMaybeZPosix(&[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ <span class="tok-str">"/a/b/"</span>, <span class="tok-str">"c"</span> }, <span class="tok-str">"/a/b/c"</span>, zero);</span> <span class="line" id="L195"></span> <span class="line" id="L196"> <span class="tok-kw">try</span> testJoinMaybeZPosix(&[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ <span class="tok-str">"/"</span>, <span class="tok-str">"a"</span>, <span class="tok-str">"b/"</span>, <span class="tok-str">"c"</span> }, <span class="tok-str">"/a/b/c"</span>, zero);</span> <span class="line" id="L197"> <span class="tok-kw">try</span> testJoinMaybeZPosix(&[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ <span class="tok-str">"/a/"</span>, <span class="tok-str">"b/"</span>, <span class="tok-str">"c"</span> }, <span class="tok-str">"/a/b/c"</span>, zero);</span> <span class="line" id="L198"></span> <span class="line" id="L199"> <span class="tok-kw">try</span> testJoinMaybeZPosix(</span> <span class="line" id="L200"> &[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ <span class="tok-str">"/home/andy/dev/zig/build/lib/zig/std"</span>, <span class="tok-str">"io.zig"</span> },</span> <span class="line" id="L201"> <span class="tok-str">"/home/andy/dev/zig/build/lib/zig/std/io.zig"</span>,</span> <span class="line" id="L202"> zero,</span> <span class="line" id="L203"> );</span> <span class="line" id="L204"></span> <span class="line" id="L205"> <span class="tok-kw">try</span> testJoinMaybeZPosix(&[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ <span class="tok-str">"a"</span>, <span class="tok-str">"/c"</span> }, <span class="tok-str">"a/c"</span>, zero);</span> <span class="line" id="L206"> <span class="tok-kw">try</span> testJoinMaybeZPosix(&[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ <span class="tok-str">"a/"</span>, <span class="tok-str">"/c"</span> }, <span class="tok-str">"a/c"</span>, zero);</span> <span class="line" id="L207"></span> <span class="line" id="L208"> <span class="tok-kw">try</span> testJoinMaybeZPosix(&[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ <span class="tok-str">""</span>, <span class="tok-str">"/"</span>, <span class="tok-str">"a"</span>, <span class="tok-str">""</span>, <span class="tok-str">"b/"</span>, <span class="tok-str">"c"</span>, <span class="tok-str">""</span> }, <span class="tok-str">"/a/b/c"</span>, zero);</span> <span class="line" id="L209"> <span class="tok-kw">try</span> testJoinMaybeZPosix(&[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ <span class="tok-str">"/a/"</span>, <span class="tok-str">""</span>, <span class="tok-str">""</span>, <span class="tok-str">"b/"</span>, <span class="tok-str">"c"</span> }, <span class="tok-str">"/a/b/c"</span>, zero);</span> <span class="line" id="L210"> <span class="tok-kw">try</span> testJoinMaybeZPosix(&[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ <span class="tok-str">""</span>, <span class="tok-str">""</span> }, <span class="tok-str">""</span>, zero);</span> <span class="line" id="L211"> }</span> <span class="line" id="L212">}</span> <span class="line" id="L213"></span> <span class="line" id="L214"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">isAbsoluteZ</span>(path_c: [:<span class="tok-number">0</span>]<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">bool</span> {</span> <span class="line" id="L215"> <span class="tok-kw">if</span> (native_os == .windows) {</span> <span class="line" id="L216"> <span class="tok-kw">return</span> isAbsoluteWindowsZ(path_c);</span> <span class="line" id="L217"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L218"> <span class="tok-kw">return</span> isAbsolutePosixZ(path_c);</span> <span class="line" id="L219"> }</span> <span class="line" id="L220">}</span> <span class="line" id="L221"></span> <span class="line" id="L222"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">isAbsolute</span>(path: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">bool</span> {</span> <span class="line" id="L223"> <span class="tok-kw">if</span> (native_os == .windows) {</span> <span class="line" id="L224"> <span class="tok-kw">return</span> isAbsoluteWindows(path);</span> <span class="line" id="L225"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L226"> <span class="tok-kw">return</span> isAbsolutePosix(path);</span> <span class="line" id="L227"> }</span> <span class="line" id="L228">}</span> <span class="line" id="L229"></span> <span class="line" id="L230"><span class="tok-kw">fn</span> <span class="tok-fn">isAbsoluteWindowsImpl</span>(<span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>, path: []<span class="tok-kw">const</span> T) <span class="tok-type">bool</span> {</span> <span class="line" id="L231"> <span class="tok-kw">if</span> (path.len < <span class="tok-number">1</span>)</span> <span class="line" id="L232"> <span class="tok-kw">return</span> <span class="tok-null">false</span>;</span> <span class="line" id="L233"></span> <span class="line" id="L234"> <span class="tok-kw">if</span> (path[<span class="tok-number">0</span>] == <span class="tok-str">'/'</span>)</span> <span class="line" id="L235"> <span class="tok-kw">return</span> <span class="tok-null">true</span>;</span> <span class="line" id="L236"></span> <span class="line" id="L237"> <span class="tok-kw">if</span> (path[<span class="tok-number">0</span>] == <span class="tok-str">'\\'</span>)</span> <span class="line" id="L238"> <span class="tok-kw">return</span> <span class="tok-null">true</span>;</span> <span class="line" id="L239"></span> <span class="line" id="L240"> <span class="tok-kw">if</span> (path.len < <span class="tok-number">3</span>)</span> <span class="line" id="L241"> <span class="tok-kw">return</span> <span class="tok-null">false</span>;</span> <span class="line" id="L242"></span> <span class="line" id="L243"> <span class="tok-kw">if</span> (path[<span class="tok-number">1</span>] == <span class="tok-str">':'</span>) {</span> <span class="line" id="L244"> <span class="tok-kw">if</span> (path[<span class="tok-number">2</span>] == <span class="tok-str">'/'</span>)</span> <span class="line" id="L245"> <span class="tok-kw">return</span> <span class="tok-null">true</span>;</span> <span class="line" id="L246"> <span class="tok-kw">if</span> (path[<span class="tok-number">2</span>] == <span class="tok-str">'\\'</span>)</span> <span class="line" id="L247"> <span class="tok-kw">return</span> <span class="tok-null">true</span>;</span> <span class="line" id="L248"> }</span> <span class="line" id="L249"></span> <span class="line" id="L250"> <span class="tok-kw">return</span> <span class="tok-null">false</span>;</span> <span class="line" id="L251">}</span> <span class="line" id="L252"></span> <span class="line" id="L253"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">isAbsoluteWindows</span>(path: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">bool</span> {</span> <span class="line" id="L254"> <span class="tok-kw">return</span> isAbsoluteWindowsImpl(<span class="tok-type">u8</span>, path);</span> <span class="line" id="L255">}</span> <span class="line" id="L256"></span> <span class="line" id="L257"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">isAbsoluteWindowsW</span>(path_w: [:<span class="tok-number">0</span>]<span class="tok-kw">const</span> <span class="tok-type">u16</span>) <span class="tok-type">bool</span> {</span> <span class="line" id="L258"> <span class="tok-kw">return</span> isAbsoluteWindowsImpl(<span class="tok-type">u16</span>, mem.sliceTo(path_w, <span class="tok-number">0</span>));</span> <span class="line" id="L259">}</span> <span class="line" id="L260"></span> <span class="line" id="L261"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">isAbsoluteWindowsWTF16</span>(path: []<span class="tok-kw">const</span> <span class="tok-type">u16</span>) <span class="tok-type">bool</span> {</span> <span class="line" id="L262"> <span class="tok-kw">return</span> isAbsoluteWindowsImpl(<span class="tok-type">u16</span>, path);</span> <span class="line" id="L263">}</span> <span class="line" id="L264"></span> <span class="line" id="L265"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">isAbsoluteWindowsZ</span>(path_c: [:<span class="tok-number">0</span>]<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">bool</span> {</span> <span class="line" id="L266"> <span class="tok-kw">return</span> isAbsoluteWindowsImpl(<span class="tok-type">u8</span>, mem.sliceTo(path_c, <span class="tok-number">0</span>));</span> <span class="line" id="L267">}</span> <span class="line" id="L268"></span> <span class="line" id="L269"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">isAbsolutePosix</span>(path: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">bool</span> {</span> <span class="line" id="L270"> <span class="tok-kw">return</span> path.len > <span class="tok-number">0</span> <span class="tok-kw">and</span> path[<span class="tok-number">0</span>] == sep_posix;</span> <span class="line" id="L271">}</span> <span class="line" id="L272"></span> <span class="line" id="L273"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">isAbsolutePosixZ</span>(path_c: [:<span class="tok-number">0</span>]<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">bool</span> {</span> <span class="line" id="L274"> <span class="tok-kw">return</span> isAbsolutePosix(mem.sliceTo(path_c, <span class="tok-number">0</span>));</span> <span class="line" id="L275">}</span> <span class="line" id="L276"></span> <span class="line" id="L277"><span class="tok-kw">test</span> <span class="tok-str">"isAbsoluteWindows"</span> {</span> <span class="line" id="L278"> <span class="tok-kw">try</span> testIsAbsoluteWindows(<span class="tok-str">""</span>, <span class="tok-null">false</span>);</span> <span class="line" id="L279"> <span class="tok-kw">try</span> testIsAbsoluteWindows(<span class="tok-str">"/"</span>, <span class="tok-null">true</span>);</span> <span class="line" id="L280"> <span class="tok-kw">try</span> testIsAbsoluteWindows(<span class="tok-str">"//"</span>, <span class="tok-null">true</span>);</span> <span class="line" id="L281"> <span class="tok-kw">try</span> testIsAbsoluteWindows(<span class="tok-str">"//server"</span>, <span class="tok-null">true</span>);</span> <span class="line" id="L282"> <span class="tok-kw">try</span> testIsAbsoluteWindows(<span class="tok-str">"//server/file"</span>, <span class="tok-null">true</span>);</span> <span class="line" id="L283"> <span class="tok-kw">try</span> testIsAbsoluteWindows(<span class="tok-str">"\\\\server\\file"</span>, <span class="tok-null">true</span>);</span> <span class="line" id="L284"> <span class="tok-kw">try</span> testIsAbsoluteWindows(<span class="tok-str">"\\\\server"</span>, <span class="tok-null">true</span>);</span> <span class="line" id="L285"> <span class="tok-kw">try</span> testIsAbsoluteWindows(<span class="tok-str">"\\\\"</span>, <span class="tok-null">true</span>);</span> <span class="line" id="L286"> <span class="tok-kw">try</span> testIsAbsoluteWindows(<span class="tok-str">"c"</span>, <span class="tok-null">false</span>);</span> <span class="line" id="L287"> <span class="tok-kw">try</span> testIsAbsoluteWindows(<span class="tok-str">"c:"</span>, <span class="tok-null">false</span>);</span> <span class="line" id="L288"> <span class="tok-kw">try</span> testIsAbsoluteWindows(<span class="tok-str">"c:\\"</span>, <span class="tok-null">true</span>);</span> <span class="line" id="L289"> <span class="tok-kw">try</span> testIsAbsoluteWindows(<span class="tok-str">"c:/"</span>, <span class="tok-null">true</span>);</span> <span class="line" id="L290"> <span class="tok-kw">try</span> testIsAbsoluteWindows(<span class="tok-str">"c://"</span>, <span class="tok-null">true</span>);</span> <span class="line" id="L291"> <span class="tok-kw">try</span> testIsAbsoluteWindows(<span class="tok-str">"C:/Users/"</span>, <span class="tok-null">true</span>);</span> <span class="line" id="L292"> <span class="tok-kw">try</span> testIsAbsoluteWindows(<span class="tok-str">"C:\\Users\\"</span>, <span class="tok-null">true</span>);</span> <span class="line" id="L293"> <span class="tok-kw">try</span> testIsAbsoluteWindows(<span class="tok-str">"C:cwd/another"</span>, <span class="tok-null">false</span>);</span> <span class="line" id="L294"> <span class="tok-kw">try</span> testIsAbsoluteWindows(<span class="tok-str">"C:cwd\\another"</span>, <span class="tok-null">false</span>);</span> <span class="line" id="L295"> <span class="tok-kw">try</span> testIsAbsoluteWindows(<span class="tok-str">"directory/directory"</span>, <span class="tok-null">false</span>);</span> <span class="line" id="L296"> <span class="tok-kw">try</span> testIsAbsoluteWindows(<span class="tok-str">"directory\\directory"</span>, <span class="tok-null">false</span>);</span> <span class="line" id="L297"> <span class="tok-kw">try</span> testIsAbsoluteWindows(<span class="tok-str">"/usr/local"</span>, <span class="tok-null">true</span>);</span> <span class="line" id="L298">}</span> <span class="line" id="L299"></span> <span class="line" id="L300"><span class="tok-kw">test</span> <span class="tok-str">"isAbsolutePosix"</span> {</span> <span class="line" id="L301"> <span class="tok-kw">try</span> testIsAbsolutePosix(<span class="tok-str">""</span>, <span class="tok-null">false</span>);</span> <span class="line" id="L302"> <span class="tok-kw">try</span> testIsAbsolutePosix(<span class="tok-str">"/home/foo"</span>, <span class="tok-null">true</span>);</span> <span class="line" id="L303"> <span class="tok-kw">try</span> testIsAbsolutePosix(<span class="tok-str">"/home/foo/.."</span>, <span class="tok-null">true</span>);</span> <span class="line" id="L304"> <span class="tok-kw">try</span> testIsAbsolutePosix(<span class="tok-str">"bar/"</span>, <span class="tok-null">false</span>);</span> <span class="line" id="L305"> <span class="tok-kw">try</span> testIsAbsolutePosix(<span class="tok-str">"./baz"</span>, <span class="tok-null">false</span>);</span> <span class="line" id="L306">}</span> <span class="line" id="L307"></span> <span class="line" id="L308"><span class="tok-kw">fn</span> <span class="tok-fn">testIsAbsoluteWindows</span>(path: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, expected_result: <span class="tok-type">bool</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L309"> <span class="tok-kw">try</span> testing.expectEqual(expected_result, isAbsoluteWindows(path));</span> <span class="line" id="L310">}</span> <span class="line" id="L311"></span> <span class="line" id="L312"><span class="tok-kw">fn</span> <span class="tok-fn">testIsAbsolutePosix</span>(path: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, expected_result: <span class="tok-type">bool</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L313"> <span class="tok-kw">try</span> testing.expectEqual(expected_result, isAbsolutePosix(path));</span> <span class="line" id="L314">}</span> <span class="line" id="L315"></span> <span class="line" id="L316"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> WindowsPath = <span class="tok-kw">struct</span> {</span> <span class="line" id="L317"> is_abs: <span class="tok-type">bool</span>,</span> <span class="line" id="L318"> kind: Kind,</span> <span class="line" id="L319"> disk_designator: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>,</span> <span class="line" id="L320"></span> <span class="line" id="L321"> <span class="tok-kw">pub</span> <span class="tok-kw">const</span> Kind = <span class="tok-kw">enum</span> {</span> <span class="line" id="L322"> None,</span> <span class="line" id="L323"> Drive,</span> <span class="line" id="L324"> NetworkShare,</span> <span class="line" id="L325"> };</span> <span class="line" id="L326">};</span> <span class="line" id="L327"></span> <span class="line" id="L328"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">windowsParsePath</span>(path: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) WindowsPath {</span> <span class="line" id="L329"> <span class="tok-kw">if</span> (path.len >= <span class="tok-number">2</span> <span class="tok-kw">and</span> path[<span class="tok-number">1</span>] == <span class="tok-str">':'</span>) {</span> <span class="line" id="L330"> <span class="tok-kw">return</span> WindowsPath{</span> <span class="line" id="L331"> .is_abs = isAbsoluteWindows(path),</span> <span class="line" id="L332"> .kind = WindowsPath.Kind.Drive,</span> <span class="line" id="L333"> .disk_designator = path[<span class="tok-number">0</span>..<span class="tok-number">2</span>],</span> <span class="line" id="L334"> };</span> <span class="line" id="L335"> }</span> <span class="line" id="L336"> <span class="tok-kw">if</span> (path.len >= <span class="tok-number">1</span> <span class="tok-kw">and</span> (path[<span class="tok-number">0</span>] == <span class="tok-str">'/'</span> <span class="tok-kw">or</span> path[<span class="tok-number">0</span>] == <span class="tok-str">'\\'</span>) <span class="tok-kw">and</span></span> <span class="line" id="L337"> (path.len == <span class="tok-number">1</span> <span class="tok-kw">or</span> (path[<span class="tok-number">1</span>] != <span class="tok-str">'/'</span> <span class="tok-kw">and</span> path[<span class="tok-number">1</span>] != <span class="tok-str">'\\'</span>)))</span> <span class="line" id="L338"> {</span> <span class="line" id="L339"> <span class="tok-kw">return</span> WindowsPath{</span> <span class="line" id="L340"> .is_abs = <span class="tok-null">true</span>,</span> <span class="line" id="L341"> .kind = WindowsPath.Kind.None,</span> <span class="line" id="L342"> .disk_designator = path[<span class="tok-number">0</span>..<span class="tok-number">0</span>],</span> <span class="line" id="L343"> };</span> <span class="line" id="L344"> }</span> <span class="line" id="L345"> <span class="tok-kw">const</span> relative_path = WindowsPath{</span> <span class="line" id="L346"> .kind = WindowsPath.Kind.None,</span> <span class="line" id="L347"> .disk_designator = &[_]<span class="tok-type">u8</span>{},</span> <span class="line" id="L348"> .is_abs = <span class="tok-null">false</span>,</span> <span class="line" id="L349"> };</span> <span class="line" id="L350"> <span class="tok-kw">if</span> (path.len < <span class="tok-str">"//a/b"</span>.len) {</span> <span class="line" id="L351"> <span class="tok-kw">return</span> relative_path;</span> <span class="line" id="L352"> }</span> <span class="line" id="L353"></span> <span class="line" id="L354"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> (<span class="tok-str">"/\\"</span>) \|this_sep\| {</span> <span class="line" id="L355"> <span class="tok-kw">const</span> two_sep = [_]<span class="tok-type">u8</span>{ this_sep, this_sep };</span> <span class="line" id="L356"> <span class="tok-kw">if</span> (mem.startsWith(<span class="tok-type">u8</span>, path, &two_sep)) {</span> <span class="line" id="L357"> <span class="tok-kw">if</span> (path[<span class="tok-number">2</span>] == this_sep) {</span> <span class="line" id="L358"> <span class="tok-kw">return</span> relative_path;</span> <span class="line" id="L359"> }</span> <span class="line" id="L360"></span> <span class="line" id="L361"> <span class="tok-kw">var</span> it = mem.tokenizeScalar(<span class="tok-type">u8</span>, path, this_sep);</span> <span class="line" id="L362"> _ = (it.next() <span class="tok-kw">orelse</span> <span class="tok-kw">return</span> relative_path);</span> <span class="line" id="L363"> _ = (it.next() <span class="tok-kw">orelse</span> <span class="tok-kw">return</span> relative_path);</span> <span class="line" id="L364"> <span class="tok-kw">return</span> WindowsPath{</span> <span class="line" id="L365"> .is_abs = isAbsoluteWindows(path),</span> <span class="line" id="L366"> .kind = WindowsPath.Kind.NetworkShare,</span> <span class="line" id="L367"> .disk_designator = path[<span class="tok-number">0</span>..it.index],</span> <span class="line" id="L368"> };</span> <span class="line" id="L369"> }</span> <span class="line" id="L370"> }</span> <span class="line" id="L371"> <span class="tok-kw">return</span> relative_path;</span> <span class="line" id="L372">}</span> <span class="line" id="L373"></span> <span class="line" id="L374"><span class="tok-kw">test</span> <span class="tok-str">"windowsParsePath"</span> {</span> <span class="line" id="L375"> {</span> <span class="line" id="L376"> <span class="tok-kw">const</span> parsed = windowsParsePath(<span class="tok-str">"//a/b"</span>);</span> <span class="line" id="L377"> <span class="tok-kw">try</span> testing.expect(parsed.is_abs);</span> <span class="line" id="L378"> <span class="tok-kw">try</span> testing.expect(parsed.kind == WindowsPath.Kind.NetworkShare);</span> <span class="line" id="L379"> <span class="tok-kw">try</span> testing.expect(mem.eql(<span class="tok-type">u8</span>, parsed.disk_designator, <span class="tok-str">"//a/b"</span>));</span> <span class="line" id="L380"> }</span> <span class="line" id="L381"> {</span> <span class="line" id="L382"> <span class="tok-kw">const</span> parsed = windowsParsePath(<span class="tok-str">"\\\\a\\b"</span>);</span> <span class="line" id="L383"> <span class="tok-kw">try</span> testing.expect(parsed.is_abs);</span> <span class="line" id="L384"> <span class="tok-kw">try</span> testing.expect(parsed.kind == WindowsPath.Kind.NetworkShare);</span> <span class="line" id="L385"> <span class="tok-kw">try</span> testing.expect(mem.eql(<span class="tok-type">u8</span>, parsed.disk_designator, <span class="tok-str">"\\\\a\\b"</span>));</span> <span class="line" id="L386"> }</span> <span class="line" id="L387"> {</span> <span class="line" id="L388"> <span class="tok-kw">const</span> parsed = windowsParsePath(<span class="tok-str">"\\\\a\\"</span>);</span> <span class="line" id="L389"> <span class="tok-kw">try</span> testing.expect(!parsed.is_abs);</span> <span class="line" id="L390"> <span class="tok-kw">try</span> testing.expect(parsed.kind == WindowsPath.Kind.None);</span> <span class="line" id="L391"> <span class="tok-kw">try</span> testing.expect(mem.eql(<span class="tok-type">u8</span>, parsed.disk_designator, <span class="tok-str">""</span>));</span> <span class="line" id="L392"> }</span> <span class="line" id="L393"> {</span> <span class="line" id="L394"> <span class="tok-kw">const</span> parsed = windowsParsePath(<span class="tok-str">"/usr/local"</span>);</span> <span class="line" id="L395"> <span class="tok-kw">try</span> testing.expect(parsed.is_abs);</span> <span class="line" id="L396"> <span class="tok-kw">try</span> testing.expect(parsed.kind == WindowsPath.Kind.None);</span> <span class="line" id="L397"> <span class="tok-kw">try</span> testing.expect(mem.eql(<span class="tok-type">u8</span>, parsed.disk_designator, <span class="tok-str">""</span>));</span> <span class="line" id="L398"> }</span> <span class="line" id="L399"> {</span> <span class="line" id="L400"> <span class="tok-kw">const</span> parsed = windowsParsePath(<span class="tok-str">"c:../"</span>);</span> <span class="line" id="L401"> <span class="tok-kw">try</span> testing.expect(!parsed.is_abs);</span> <span class="line" id="L402"> <span class="tok-kw">try</span> testing.expect(parsed.kind == WindowsPath.Kind.Drive);</span> <span class="line" id="L403"> <span class="tok-kw">try</span> testing.expect(mem.eql(<span class="tok-type">u8</span>, parsed.disk_designator, <span class="tok-str">"c:"</span>));</span> <span class="line" id="L404"> }</span> <span class="line" id="L405">}</span> <span class="line" id="L406"></span> <span class="line" id="L407"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">diskDesignator</span>(path: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) []<span class="tok-kw">const</span> <span class="tok-type">u8</span> {</span> <span class="line" id="L408"> <span class="tok-kw">if</span> (native_os == .windows) {</span> <span class="line" id="L409"> <span class="tok-kw">return</span> diskDesignatorWindows(path);</span> <span class="line" id="L410"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L411"> <span class="tok-kw">return</span> <span class="tok-str">""</span>;</span> <span class="line" id="L412"> }</span> <span class="line" id="L413">}</span> <span class="line" id="L414"></span> <span class="line" id="L415"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">diskDesignatorWindows</span>(path: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) []<span class="tok-kw">const</span> <span class="tok-type">u8</span> {</span> <span class="line" id="L416"> <span class="tok-kw">return</span> windowsParsePath(path).disk_designator;</span> <span class="line" id="L417">}</span> <span class="line" id="L418"></span> <span class="line" id="L419"><span class="tok-kw">fn</span> <span class="tok-fn">networkShareServersEql</span>(ns1: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, ns2: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">bool</span> {</span> <span class="line" id="L420"> <span class="tok-kw">const</span> sep1 = ns1[<span class="tok-number">0</span>];</span> <span class="line" id="L421"> <span class="tok-kw">const</span> sep2 = ns2[<span class="tok-number">0</span>];</span> <span class="line" id="L422"></span> <span class="line" id="L423"> <span class="tok-kw">var</span> it1 = mem.tokenizeScalar(<span class="tok-type">u8</span>, ns1, sep1);</span> <span class="line" id="L424"> <span class="tok-kw">var</span> it2 = mem.tokenizeScalar(<span class="tok-type">u8</span>, ns2, sep2);</span> <span class="line" id="L425"></span> <span class="line" id="L426"> <span class="tok-kw">return</span> windows.eqlIgnoreCaseUtf8(it1.next().?, it2.next().?);</span> <span class="line" id="L427">}</span> <span class="line" id="L428"></span> <span class="line" id="L429"><span class="tok-kw">fn</span> <span class="tok-fn">compareDiskDesignators</span>(kind: WindowsPath.Kind, p1: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, p2: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) <span class="tok-type">bool</span> {</span> <span class="line" id="L430"> <span class="tok-kw">switch</span> (kind) {</span> <span class="line" id="L431"> WindowsPath.Kind.None => {</span> <span class="line" id="L432"> assert(p1.len == <span class="tok-number">0</span>);</span> <span class="line" id="L433"> assert(p2.len == <span class="tok-number">0</span>);</span> <span class="line" id="L434"> <span class="tok-kw">return</span> <span class="tok-null">true</span>;</span> <span class="line" id="L435"> },</span> <span class="line" id="L436"> WindowsPath.Kind.Drive => {</span> <span class="line" id="L437"> <span class="tok-kw">return</span> ascii.toUpper(p1[<span class="tok-number">0</span>]) == ascii.toUpper(p2[<span class="tok-number">0</span>]);</span> <span class="line" id="L438"> },</span> <span class="line" id="L439"> WindowsPath.Kind.NetworkShare => {</span> <span class="line" id="L440"> <span class="tok-kw">const</span> sep1 = p1[<span class="tok-number">0</span>];</span> <span class="line" id="L441"> <span class="tok-kw">const</span> sep2 = p2[<span class="tok-number">0</span>];</span> <span class="line" id="L442"></span> <span class="line" id="L443"> <span class="tok-kw">var</span> it1 = mem.tokenizeScalar(<span class="tok-type">u8</span>, p1, sep1);</span> <span class="line" id="L444"> <span class="tok-kw">var</span> it2 = mem.tokenizeScalar(<span class="tok-type">u8</span>, p2, sep2);</span> <span class="line" id="L445"></span> <span class="line" id="L446"> <span class="tok-kw">return</span> windows.eqlIgnoreCaseUtf8(it1.next().?, it2.next().?) <span class="tok-kw">and</span> windows.eqlIgnoreCaseUtf8(it1.next().?, it2.next().?);</span> <span class="line" id="L447"> },</span> <span class="line" id="L448"> }</span> <span class="line" id="L449">}</span> <span class="line" id="L450"></span> <span class="line" id="L451"><span class="tok-comment">/// On Windows, this calls `resolveWindows` and on POSIX it calls `resolvePosix`.</span></span> <span class="line" id="L452"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">resolve</span>(allocator: Allocator, paths: []<span class="tok-kw">const</span> []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) ![]<span class="tok-type">u8</span> {</span> <span class="line" id="L453"> <span class="tok-kw">if</span> (native_os == .windows) {</span> <span class="line" id="L454"> <span class="tok-kw">return</span> resolveWindows(allocator, paths);</span> <span class="line" id="L455"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L456"> <span class="tok-kw">return</span> resolvePosix(allocator, paths);</span> <span class="line" id="L457"> }</span> <span class="line" id="L458">}</span> <span class="line" id="L459"></span> <span class="line" id="L460"><span class="tok-comment">/// This function is like a series of `cd` statements executed one after another.</span></span> <span class="line" id="L461"><span class="tok-comment">/// It resolves "." and "..", but will not convert relative path to absolute path, use std.fs.Dir.realpath instead.</span></span> <span class="line" id="L462"><span class="tok-comment">/// The result does not have a trailing path separator.</span></span> <span class="line" id="L463"><span class="tok-comment">/// Each drive has its own current working directory.</span></span> <span class="line" id="L464"><span class="tok-comment">/// Path separators are canonicalized to '\\' and drives are canonicalized to capital letters.</span></span> <span class="line" id="L465"><span class="tok-comment">/// Note: all usage of this function should be audited due to the existence of symlinks.</span></span> <span class="line" id="L466"><span class="tok-comment">/// Without performing actual syscalls, resolving `..` could be incorrect.</span></span> <span class="line" id="L467"><span class="tok-comment">/// This API may break in the future: https://github.com/ziglang/zig/issues/13613</span></span> <span class="line" id="L468"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">resolveWindows</span>(allocator: Allocator, paths: []<span class="tok-kw">const</span> []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) ![]<span class="tok-type">u8</span> {</span> <span class="line" id="L469"> assert(paths.len > <span class="tok-number">0</span>);</span> <span class="line" id="L470"></span> <span class="line" id="L471"> <span class="tok-comment">// determine which disk designator we will result with, if any</span> </span> <span class="line" id="L472"> <span class="tok-kw">var</span> result_drive_buf = <span class="tok-str">"_:"</span>.;</span> <span class="line" id="L473"> <span class="tok-kw">var</span> disk_designator: []<span class="tok-kw">const</span> <span class="tok-type">u8</span> = <span class="tok-str">""</span>;</span> <span class="line" id="L474"> <span class="tok-kw">var</span> drive_kind = WindowsPath.Kind.None;</span> <span class="line" id="L475"> <span class="tok-kw">var</span> have_abs_path = <span class="tok-null">false</span>;</span> <span class="line" id="L476"> <span class="tok-kw">var</span> first_index: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L477"> <span class="tok-kw">for</span> (paths, <span class="tok-number">0</span>..) \|p, i\| {</span> <span class="line" id="L478"> <span class="tok-kw">const</span> parsed = windowsParsePath(p);</span> <span class="line" id="L479"> <span class="tok-kw">if</span> (parsed.is_abs) {</span> <span class="line" id="L480"> have_abs_path = <span class="tok-null">true</span>;</span> <span class="line" id="L481"> first_index = i;</span> <span class="line" id="L482"> }</span> <span class="line" id="L483"> <span class="tok-kw">switch</span> (parsed.kind) {</span> <span class="line" id="L484"> .Drive => {</span> <span class="line" id="L485"> result_drive_buf[<span class="tok-number">0</span>] = ascii.toUpper(parsed.disk_designator[<span class="tok-number">0</span>]);</span> <span class="line" id="L486"> disk_designator = result_drive_buf[<span class="tok-number">0</span>..];</span> <span class="line" id="L487"> drive_kind = WindowsPath.Kind.Drive;</span> <span class="line" id="L488"> },</span> <span class="line" id="L489"> .NetworkShare => {</span> <span class="line" id="L490"> disk_designator = parsed.disk_designator;</span> <span class="line" id="L491"> drive_kind = WindowsPath.Kind.NetworkShare;</span> <span class="line" id="L492"> },</span> <span class="line" id="L493"> .None => {},</span> <span class="line" id="L494"> }</span> <span class="line" id="L495"> }</span> <span class="line" id="L496"></span> <span class="line" id="L497"> <span class="tok-comment">// if we will result with a disk designator, loop again to determine</span> </span> <span class="line" id="L498"> <span class="tok-comment">// which is the last time the disk designator is absolutely specified, if any</span> </span> <span class="line" id="L499"> <span class="tok-comment">// and count up the max bytes for paths related to this disk designator</span> </span> <span class="line" id="L500"> <span class="tok-kw">if</span> (drive_kind != WindowsPath.Kind.None) {</span> <span class="line" id="L501"> have_abs_path = <span class="tok-null">false</span>;</span> <span class="line" id="L502"> first_index = <span class="tok-number">0</span>;</span> <span class="line" id="L503"> <span class="tok-kw">var</span> correct_disk_designator = <span class="tok-null">false</span>;</span> <span class="line" id="L504"></span> <span class="line" id="L505"> <span class="tok-kw">for</span> (paths, <span class="tok-number">0</span>..) \|p, i\| {</span> <span class="line" id="L506"> <span class="tok-kw">const</span> parsed = windowsParsePath(p);</span> <span class="line" id="L507"> <span class="tok-kw">if</span> (parsed.kind != WindowsPath.Kind.None) {</span> <span class="line" id="L508"> <span class="tok-kw">if</span> (parsed.kind == drive_kind) {</span> <span class="line" id="L509"> correct_disk_designator = compareDiskDesignators(drive_kind, disk_designator, parsed.disk_designator);</span> <span class="line" id="L510"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L511"> <span class="tok-kw">continue</span>;</span> <span class="line" id="L512"> }</span> <span class="line" id="L513"> }</span> <span class="line" id="L514"> <span class="tok-kw">if</span> (!correct_disk_designator) {</span> <span class="line" id="L515"> <span class="tok-kw">continue</span>;</span> <span class="line" id="L516"> }</span> <span class="line" id="L517"> <span class="tok-kw">if</span> (parsed.is_abs) {</span> <span class="line" id="L518"> first_index = i;</span> <span class="line" id="L519"> have_abs_path = <span class="tok-null">true</span>;</span> <span class="line" id="L520"> }</span> <span class="line" id="L521"> }</span> <span class="line" id="L522"> }</span> <span class="line" id="L523"></span> <span class="line" id="L524"> <span class="tok-comment">// Allocate result and fill in the disk designator.</span> </span> <span class="line" id="L525"> <span class="tok-kw">var</span> result = std.ArrayList(<span class="tok-type">u8</span>).init(allocator);</span> <span class="line" id="L526"> <span class="tok-kw">defer</span> result.deinit();</span> <span class="line" id="L527"></span> <span class="line" id="L528"> <span class="tok-kw">const</span> disk_designator_len: <span class="tok-type">usize</span> = l: {</span> <span class="line" id="L529"> <span class="tok-kw">if</span> (!have_abs_path) <span class="tok-kw">break</span> :l <span class="tok-number">0</span>;</span> <span class="line" id="L530"> <span class="tok-kw">switch</span> (drive_kind) {</span> <span class="line" id="L531"> .Drive => {</span> <span class="line" id="L532"> <span class="tok-kw">try</span> result.appendSlice(disk_designator);</span> <span class="line" id="L533"> <span class="tok-kw">break</span> :l disk_designator.len;</span> <span class="line" id="L534"> },</span> <span class="line" id="L535"> .NetworkShare => {</span> <span class="line" id="L536"> <span class="tok-kw">var</span> it = mem.tokenizeAny(<span class="tok-type">u8</span>, paths[first_index], <span class="tok-str">"/\\"</span>);</span> <span class="line" id="L537"> <span class="tok-kw">const</span> server_name = it.next().?;</span> <span class="line" id="L538"> <span class="tok-kw">const</span> other_name = it.next().?;</span> <span class="line" id="L539"></span> <span class="line" id="L540"> <span class="tok-kw">try</span> result.ensureUnusedCapacity(<span class="tok-number">2</span> + <span class="tok-number">1</span> + server_name.len + other_name.len);</span> <span class="line" id="L541"> result.appendSliceAssumeCapacity(<span class="tok-str">"\\\\"</span>);</span> <span class="line" id="L542"> result.appendSliceAssumeCapacity(server_name);</span> <span class="line" id="L543"> result.appendAssumeCapacity(<span class="tok-str">'\\'</span>);</span> <span class="line" id="L544"> result.appendSliceAssumeCapacity(other_name);</span> <span class="line" id="L545"></span> <span class="line" id="L546"> <span class="tok-kw">break</span> :l result.items.len;</span> <span class="line" id="L547"> },</span> <span class="line" id="L548"> .None => {</span> <span class="line" id="L549"> <span class="tok-kw">break</span> :l <span class="tok-number">1</span>;</span> <span class="line" id="L550"> },</span> <span class="line" id="L551"> }</span> <span class="line" id="L552"> };</span> <span class="line" id="L553"></span> <span class="line" id="L554"> <span class="tok-kw">var</span> correct_disk_designator = <span class="tok-null">true</span>;</span> <span class="line" id="L555"> <span class="tok-kw">var</span> negative_count: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L556"></span> <span class="line" id="L557"> <span class="tok-kw">for</span> (paths[first_index..]) \|p\| {</span> <span class="line" id="L558"> <span class="tok-kw">const</span> parsed = windowsParsePath(p);</span> <span class="line" id="L559"></span> <span class="line" id="L560"> <span class="tok-kw">if</span> (parsed.kind != .None) {</span> <span class="line" id="L561"> <span class="tok-kw">if</span> (parsed.kind == drive_kind) {</span> <span class="line" id="L562"> <span class="tok-kw">const</span> dd = result.items[<span class="tok-number">0</span>..disk_designator_len];</span> <span class="line" id="L563"> correct_disk_designator = compareDiskDesignators(drive_kind, dd, parsed.disk_designator);</span> <span class="line" id="L564"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L565"> <span class="tok-kw">continue</span>;</span> <span class="line" id="L566"> }</span> <span class="line" id="L567"> }</span> <span class="line" id="L568"> <span class="tok-kw">if</span> (!correct_disk_designator) {</span> <span class="line" id="L569"> <span class="tok-kw">continue</span>;</span> <span class="line" id="L570"> }</span> <span class="line" id="L571"> <span class="tok-kw">var</span> it = mem.tokenizeAny(<span class="tok-type">u8</span>, p[parsed.disk_designator.len..], <span class="tok-str">"/\\"</span>);</span> <span class="line" id="L572"> <span class="tok-kw">while</span> (it.next()) \|component\| {</span> <span class="line" id="L573"> <span class="tok-kw">if</span> (mem.eql(<span class="tok-type">u8</span>, component, <span class="tok-str">"."</span>)) {</span> <span class="line" id="L574"> <span class="tok-kw">continue</span>;</span> <span class="line" id="L575"> } <span class="tok-kw">else</span> <span class="tok-kw">if</span> (mem.eql(<span class="tok-type">u8</span>, component, <span class="tok-str">".."</span>)) {</span> <span class="line" id="L576"> <span class="tok-kw">if</span> (result.items.len == <span class="tok-number">0</span>) {</span> <span class="line" id="L577"> negative_count += <span class="tok-number">1</span>;</span> <span class="line" id="L578"> <span class="tok-kw">continue</span>;</span> <span class="line" id="L579"> }</span> <span class="line" id="L580"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L581"> <span class="tok-kw">if</span> (result.items.len == disk_designator_len) {</span> <span class="line" id="L582"> <span class="tok-kw">break</span>;</span> <span class="line" id="L583"> }</span> <span class="line" id="L584"> <span class="tok-kw">const</span> end_with_sep = <span class="tok-kw">switch</span> (result.items[result.items.len - <span class="tok-number">1</span>]) {</span> <span class="line" id="L585"> <span class="tok-str">'\\'</span>, <span class="tok-str">'/'</span> => <span class="tok-null">true</span>,</span> <span class="line" id="L586"> <span class="tok-kw">else</span> => <span class="tok-null">false</span>,</span> <span class="line" id="L587"> };</span> <span class="line" id="L588"> result.items.len -= <span class="tok-number">1</span>;</span> <span class="line" id="L589"> <span class="tok-kw">if</span> (end_with_sep <span class="tok-kw">or</span> result.items.len == <span class="tok-number">0</span>) <span class="tok-kw">break</span>;</span> <span class="line" id="L590"> }</span> <span class="line" id="L591"> } <span class="tok-kw">else</span> <span class="tok-kw">if</span> (!have_abs_path <span class="tok-kw">and</span> result.items.len == <span class="tok-number">0</span>) {</span> <span class="line" id="L592"> <span class="tok-kw">try</span> result.appendSlice(component);</span> <span class="line" id="L593"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L594"> <span class="tok-kw">try</span> result.ensureUnusedCapacity(<span class="tok-number">1</span> + component.len);</span> <span class="line" id="L595"> result.appendAssumeCapacity(<span class="tok-str">'\\'</span>);</span> <span class="line" id="L596"> result.appendSliceAssumeCapacity(component);</span> <span class="line" id="L597"> }</span> <span class="line" id="L598"> }</span> <span class="line" id="L599"> }</span> <span class="line" id="L600"></span> <span class="line" id="L601"> <span class="tok-kw">if</span> (disk_designator_len != <span class="tok-number">0</span> <span class="tok-kw">and</span> result.items.len == disk_designator_len) {</span> <span class="line" id="L602"> <span class="tok-kw">try</span> result.append(<span class="tok-str">'\\'</span>);</span> <span class="line" id="L603"> <span class="tok-kw">return</span> result.toOwnedSlice();</span> <span class="line" id="L604"> }</span> <span class="line" id="L605"></span> <span class="line" id="L606"> <span class="tok-kw">if</span> (result.items.len == <span class="tok-number">0</span>) {</span> <span class="line" id="L607"> <span class="tok-kw">if</span> (negative_count == <span class="tok-number">0</span>) {</span> <span class="line" id="L608"> <span class="tok-kw">return</span> allocator.dupe(<span class="tok-type">u8</span>, <span class="tok-str">"."</span>);</span> <span class="line" id="L609"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L610"> <span class="tok-kw">const</span> real_result = <span class="tok-kw">try</span> allocator.alloc(<span class="tok-type">u8</span>, <span class="tok-number">3</span> negative_count - <span class="tok-number">1</span>);</span> <span class="line" id="L611"> <span class="tok-kw">var</span> count = negative_count - <span class="tok-number">1</span>;</span> <span class="line" id="L612"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L613"> <span class="tok-kw">while</span> (count > <span class="tok-number">0</span>) : (count -= <span class="tok-number">1</span>) {</span> <span class="line" id="L614"> real_result[i..][<span class="tok-number">0</span>..<span class="tok-number">3</span>].* = <span class="tok-str">"..\\"</span>.;</span> <span class="line" id="L615"> i += <span class="tok-number">3</span>;</span> <span class="line" id="L616"> }</span> <span class="line" id="L617"> real_result[i..][<span class="tok-number">0</span>..<span class="tok-number">2</span>]. = <span class="tok-str">".."</span>.;</span> <span class="line" id="L618"> <span class="tok-kw">return</span> real_result;</span> <span class="line" id="L619"> }</span> <span class="line" id="L620"> }</span> <span class="line" id="L621"></span> <span class="line" id="L622"> <span class="tok-kw">if</span> (negative_count == <span class="tok-number">0</span>) {</span> <span class="line" id="L623"> <span class="tok-kw">return</span> result.toOwnedSlice();</span> <span class="line" id="L624"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L625"> <span class="tok-kw">const</span> real_result = <span class="tok-kw">try</span> allocator.alloc(<span class="tok-type">u8</span>, <span class="tok-number">3</span> negative_count + result.items.len);</span> <span class="line" id="L626"> <span class="tok-kw">var</span> count = negative_count;</span> <span class="line" id="L627"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L628"> <span class="tok-kw">while</span> (count > <span class="tok-number">0</span>) : (count -= <span class="tok-number">1</span>) {</span> <span class="line" id="L629"> real_result[i..][<span class="tok-number">0</span>..<span class="tok-number">3</span>].* = <span class="tok-str">"..\\"</span>.;</span> <span class="line" id="L630"> i += <span class="tok-number">3</span>;</span> <span class="line" id="L631"> }</span> <span class="line" id="L632"> <span class="tok-builtin">@memcpy</span>(real_result[i..][<span class="tok-number">0</span>..result.items.len], result.items);</span> <span class="line" id="L633"> <span class="tok-kw">return</span> real_result;</span> <span class="line" id="L634"> }</span> <span class="line" id="L635">}</span> <span class="line" id="L636"></span> <span class="line" id="L637"><span class="tok-comment">/// This function is like a series of `cd` statements executed one after another.</span></span> <span class="line" id="L638"><span class="tok-comment">/// It resolves "." and "..", but will not convert relative path to absolute path, use std.fs.Dir.realpath instead.</span></span> <span class="line" id="L639"><span class="tok-comment">/// The result does not have a trailing path separator.</span></span> <span class="line" id="L640"><span class="tok-comment">/// This function does not perform any syscalls. Executing this series of path</span></span> <span class="line" id="L641"><span class="tok-comment">/// lookups on the actual filesystem may produce different results due to</span></span> <span class="line" id="L642"><span class="tok-comment">/// symlinks.</span></span> <span class="line" id="L643"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">resolvePosix</span>(allocator: Allocator, paths: []<span class="tok-kw">const</span> []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) Allocator.Error![]<span class="tok-type">u8</span> {</span> <span class="line" id="L644"> assert(paths.len > <span class="tok-number">0</span>);</span> <span class="line" id="L645"></span> <span class="line" id="L646"> <span class="tok-kw">var</span> result = std.ArrayList(<span class="tok-type">u8</span>).init(allocator);</span> <span class="line" id="L647"> <span class="tok-kw">defer</span> result.deinit();</span> <span class="line" id="L648"></span> <span class="line" id="L649"> <span class="tok-kw">var</span> negative_count: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L650"> <span class="tok-kw">var</span> is_abs = <span class="tok-null">false</span>;</span> <span class="line" id="L651"></span> <span class="line" id="L652"> <span class="tok-kw">for</span> (paths) \|p\| {</span> <span class="line" id="L653"> <span class="tok-kw">if</span> (isAbsolutePosix(p)) {</span> <span class="line" id="L654"> is_abs = <span class="tok-null">true</span>;</span> <span class="line" id="L655"> negative_count = <span class="tok-number">0</span>;</span> <span class="line" id="L656"> result.clearRetainingCapacity();</span> <span class="line" id="L657"> }</span> <span class="line" id="L658"> <span class="tok-kw">var</span> it = mem.tokenizeScalar(<span class="tok-type">u8</span>, p, <span class="tok-str">'/'</span>);</span> <span class="line" id="L659"> <span class="tok-kw">while</span> (it.next()) \|component\| {</span> <span class="line" id="L660"> <span class="tok-kw">if</span> (mem.eql(<span class="tok-type">u8</span>, component, <span class="tok-str">"."</span>)) {</span> <span class="line" id="L661"> <span class="tok-kw">continue</span>;</span> <span class="line" id="L662"> } <span class="tok-kw">else</span> <span class="tok-kw">if</span> (mem.eql(<span class="tok-type">u8</span>, component, <span class="tok-str">".."</span>)) {</span> <span class="line" id="L663"> <span class="tok-kw">if</span> (result.items.len == <span class="tok-number">0</span>) {</span> <span class="line" id="L664"> negative_count += <span class="tok-builtin">@intFromBool</span>(!is_abs);</span> <span class="line" id="L665"> <span class="tok-kw">continue</span>;</span> <span class="line" id="L666"> }</span> <span class="line" id="L667"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L668"> <span class="tok-kw">const</span> ends_with_slash = result.items[result.items.len - <span class="tok-number">1</span>] == <span class="tok-str">'/'</span>;</span> <span class="line" id="L669"> result.items.len -= <span class="tok-number">1</span>;</span> <span class="line" id="L670"> <span class="tok-kw">if</span> (ends_with_slash <span class="tok-kw">or</span> result.items.len == <span class="tok-number">0</span>) <span class="tok-kw">break</span>;</span> <span class="line" id="L671"> }</span> <span class="line" id="L672"> } <span class="tok-kw">else</span> <span class="tok-kw">if</span> (result.items.len > <span class="tok-number">0</span> <span class="tok-kw">or</span> is_abs) {</span> <span class="line" id="L673"> <span class="tok-kw">try</span> result.ensureUnusedCapacity(<span class="tok-number">1</span> + component.len);</span> <span class="line" id="L674"> result.appendAssumeCapacity(<span class="tok-str">'/'</span>);</span> <span class="line" id="L675"> result.appendSliceAssumeCapacity(component);</span> <span class="line" id="L676"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L677"> <span class="tok-kw">try</span> result.appendSlice(component);</span> <span class="line" id="L678"> }</span> <span class="line" id="L679"> }</span> <span class="line" id="L680"> }</span> <span class="line" id="L681"></span> <span class="line" id="L682"> <span class="tok-kw">if</span> (result.items.len == <span class="tok-number">0</span>) {</span> <span class="line" id="L683"> <span class="tok-kw">if</span> (is_abs) {</span> <span class="line" id="L684"> <span class="tok-kw">return</span> allocator.dupe(<span class="tok-type">u8</span>, <span class="tok-str">"/"</span>);</span> <span class="line" id="L685"> }</span> <span class="line" id="L686"> <span class="tok-kw">if</span> (negative_count == <span class="tok-number">0</span>) {</span> <span class="line" id="L687"> <span class="tok-kw">return</span> allocator.dupe(<span class="tok-type">u8</span>, <span class="tok-str">"."</span>);</span> <span class="line" id="L688"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L689"> <span class="tok-kw">const</span> real_result = <span class="tok-kw">try</span> allocator.alloc(<span class="tok-type">u8</span>, <span class="tok-number">3</span> negative_count - <span class="tok-number">1</span>);</span> <span class="line" id="L690"> <span class="tok-kw">var</span> count = negative_count - <span class="tok-number">1</span>;</span> <span class="line" id="L691"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L692"> <span class="tok-kw">while</span> (count > <span class="tok-number">0</span>) : (count -= <span class="tok-number">1</span>) {</span> <span class="line" id="L693"> real_result[i..][<span class="tok-number">0</span>..<span class="tok-number">3</span>].* = <span class="tok-str">"../"</span>.;</span> <span class="line" id="L694"> i += <span class="tok-number">3</span>;</span> <span class="line" id="L695"> }</span> <span class="line" id="L696"> real_result[i..][<span class="tok-number">0</span>..<span class="tok-number">2</span>]. = <span class="tok-str">".."</span>.;</span> <span class="line" id="L697"> <span class="tok-kw">return</span> real_result;</span> <span class="line" id="L698"> }</span> <span class="line" id="L699"> }</span> <span class="line" id="L700"></span> <span class="line" id="L701"> <span class="tok-kw">if</span> (negative_count == <span class="tok-number">0</span>) {</span> <span class="line" id="L702"> <span class="tok-kw">return</span> result.toOwnedSlice();</span> <span class="line" id="L703"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L704"> <span class="tok-kw">const</span> real_result = <span class="tok-kw">try</span> allocator.alloc(<span class="tok-type">u8</span>, <span class="tok-number">3</span> negative_count + result.items.len);</span> <span class="line" id="L705"> <span class="tok-kw">var</span> count = negative_count;</span> <span class="line" id="L706"> <span class="tok-kw">var</span> i: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L707"> <span class="tok-kw">while</span> (count > <span class="tok-number">0</span>) : (count -= <span class="tok-number">1</span>) {</span> <span class="line" id="L708"> real_result[i..][<span class="tok-number">0</span>..<span class="tok-number">3</span>].* = <span class="tok-str">"../"</span>.;</span> <span class="line" id="L709"> i += <span class="tok-number">3</span>;</span> <span class="line" id="L710"> }</span> <span class="line" id="L711"> <span class="tok-builtin">@memcpy</span>(real_result[i..][<span class="tok-number">0</span>..result.items.len], result.items);</span> <span class="line" id="L712"> <span class="tok-kw">return</span> real_result;</span> <span class="line" id="L713"> }</span> <span class="line" id="L714">}</span> <span class="line" id="L715"></span> <span class="line" id="L716"><span class="tok-kw">test</span> <span class="tok-str">"resolve"</span> {</span> <span class="line" id="L717"> <span class="tok-kw">try</span> testResolveWindows(&[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ <span class="tok-str">"a\\b\\c\\"</span>, <span class="tok-str">"..\\..\\.."</span> }, <span class="tok-str">"."</span>);</span> <span class="line" id="L718"> <span class="tok-kw">try</span> testResolveWindows(&[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{<span class="tok-str">"."</span>}, <span class="tok-str">"."</span>);</span> <span class="line" id="L719"></span> <span class="line" id="L720"> <span class="tok-kw">try</span> testResolvePosix(&[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ <span class="tok-str">"a/b/c/"</span>, <span class="tok-str">"../../.."</span> }, <span class="tok-str">"."</span>);</span> <span class="line" id="L721"> <span class="tok-kw">try</span> testResolvePosix(&[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{<span class="tok-str">"."</span>}, <span class="tok-str">"."</span>);</span> <span class="line" id="L722">}</span> <span class="line" id="L723"></span> <span class="line" id="L724"><span class="tok-kw">test</span> <span class="tok-str">"resolveWindows"</span> {</span> <span class="line" id="L725"> <span class="tok-kw">try</span> testResolveWindows(</span> <span class="line" id="L726"> &[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ <span class="tok-str">"Z:\\"</span>, <span class="tok-str">"/usr/local"</span>, <span class="tok-str">"lib\\zig\\std\\array_list.zig"</span> },</span> <span class="line" id="L727"> <span class="tok-str">"Z:\\usr\\local\\lib\\zig\\std\\array_list.zig"</span>,</span> <span class="line" id="L728"> );</span> <span class="line" id="L729"> <span class="tok-kw">try</span> testResolveWindows(</span> <span class="line" id="L730"> &[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ <span class="tok-str">"z:\\"</span>, <span class="tok-str">"usr/local"</span>, <span class="tok-str">"lib\\zig"</span> },</span> <span class="line" id="L731"> <span class="tok-str">"Z:\\usr\\local\\lib\\zig"</span>,</span> <span class="line" id="L732"> );</span> <span class="line" id="L733"></span> <span class="line" id="L734"> <span class="tok-kw">try</span> testResolveWindows(&[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ <span class="tok-str">"c:\\a\\b\\c"</span>, <span class="tok-str">"/hi"</span>, <span class="tok-str">"ok"</span> }, <span class="tok-str">"C:\\hi\\ok"</span>);</span> <span class="line" id="L735"> <span class="tok-kw">try</span> testResolveWindows(&[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ <span class="tok-str">"c:/blah\\blah"</span>, <span class="tok-str">"d:/games"</span>, <span class="tok-str">"c:../a"</span> }, <span class="tok-str">"C:\\blah\\a"</span>);</span> <span class="line" id="L736"> <span class="tok-kw">try</span> testResolveWindows(&[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ <span class="tok-str">"c:/blah\\blah"</span>, <span class="tok-str">"d:/games"</span>, <span class="tok-str">"C:../a"</span> }, <span class="tok-str">"C:\\blah\\a"</span>);</span> <span class="line" id="L737"> <span class="tok-kw">try</span> testResolveWindows(&[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ <span class="tok-str">"c:/ignore"</span>, <span class="tok-str">"d:\\a/b\\c/d"</span>, <span class="tok-str">"\\e.exe"</span> }, <span class="tok-str">"D:\\e.exe"</span>);</span> <span class="line" id="L738"> <span class="tok-kw">try</span> testResolveWindows(&[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ <span class="tok-str">"c:/ignore"</span>, <span class="tok-str">"c:/some/file"</span> }, <span class="tok-str">"C:\\some\\file"</span>);</span> <span class="line" id="L739"> <span class="tok-kw">try</span> testResolveWindows(&[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ <span class="tok-str">"d:/ignore"</span>, <span class="tok-str">"d:some/dir//"</span> }, <span class="tok-str">"D:\\ignore\\some\\dir"</span>);</span> <span class="line" id="L740"> <span class="tok-kw">try</span> testResolveWindows(&[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ <span class="tok-str">"//server/share"</span>, <span class="tok-str">".."</span>, <span class="tok-str">"relative\\"</span> }, <span class="tok-str">"\\\\server\\share\\relative"</span>);</span> <span class="line" id="L741"> <span class="tok-kw">try</span> testResolveWindows(&[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ <span class="tok-str">"c:/"</span>, <span class="tok-str">"//"</span> }, <span class="tok-str">"C:\\"</span>);</span> <span class="line" id="L742"> <span class="tok-kw">try</span> testResolveWindows(&[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ <span class="tok-str">"c:/"</span>, <span class="tok-str">"//dir"</span> }, <span class="tok-str">"C:\\dir"</span>);</span> <span class="line" id="L743"> <span class="tok-kw">try</span> testResolveWindows(&[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ <span class="tok-str">"c:/"</span>, <span class="tok-str">"//server/share"</span> }, <span class="tok-str">"\\\\server\\share\\"</span>);</span> <span class="line" id="L744"> <span class="tok-kw">try</span> testResolveWindows(&[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ <span class="tok-str">"c:/"</span>, <span class="tok-str">"//server//share"</span> }, <span class="tok-str">"\\\\server\\share\\"</span>);</span> <span class="line" id="L745"> <span class="tok-kw">try</span> testResolveWindows(&[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ <span class="tok-str">"c:/"</span>, <span class="tok-str">"///some//dir"</span> }, <span class="tok-str">"C:\\some\\dir"</span>);</span> <span class="line" id="L746"> <span class="tok-kw">try</span> testResolveWindows(&[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ <span class="tok-str">"C:\\foo\\tmp.3\\"</span>, <span class="tok-str">"..\\tmp.3\\cycles\\root.js"</span> }, <span class="tok-str">"C:\\foo\\tmp.3\\cycles\\root.js"</span>);</span> <span class="line" id="L747"></span> <span class="line" id="L748"> <span class="tok-comment">// Keep relative paths relative.</span> </span> <span class="line" id="L749"> <span class="tok-kw">try</span> testResolveWindows(&[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{<span class="tok-str">"a/b"</span>}, <span class="tok-str">"a\\b"</span>);</span> <span class="line" id="L750">}</span> <span class="line" id="L751"></span> <span class="line" id="L752"><span class="tok-kw">test</span> <span class="tok-str">"resolvePosix"</span> {</span> <span class="line" id="L753"> <span class="tok-kw">try</span> testResolvePosix(&.{ <span class="tok-str">"/a/b"</span>, <span class="tok-str">"c"</span> }, <span class="tok-str">"/a/b/c"</span>);</span> <span class="line" id="L754"> <span class="tok-kw">try</span> testResolvePosix(&.{ <span class="tok-str">"/a/b"</span>, <span class="tok-str">"c"</span>, <span class="tok-str">"//d"</span>, <span class="tok-str">"e///"</span> }, <span class="tok-str">"/d/e"</span>);</span> <span class="line" id="L755"> <span class="tok-kw">try</span> testResolvePosix(&.{ <span class="tok-str">"/a/b/c"</span>, <span class="tok-str">".."</span>, <span class="tok-str">"../"</span> }, <span class="tok-str">"/a"</span>);</span> <span class="line" id="L756"> <span class="tok-kw">try</span> testResolvePosix(&.{ <span class="tok-str">"/"</span>, <span class="tok-str">".."</span>, <span class="tok-str">".."</span> }, <span class="tok-str">"/"</span>);</span> <span class="line" id="L757"> <span class="tok-kw">try</span> testResolvePosix(&.{<span class="tok-str">"/a/b/c/"</span>}, <span class="tok-str">"/a/b/c"</span>);</span> <span class="line" id="L758"></span> <span class="line" id="L759"> <span class="tok-kw">try</span> testResolvePosix(&.{ <span class="tok-str">"/var/lib"</span>, <span class="tok-str">"../"</span>, <span class="tok-str">"file/"</span> }, <span class="tok-str">"/var/file"</span>);</span> <span class="line" id="L760"> <span class="tok-kw">try</span> testResolvePosix(&.{ <span class="tok-str">"/var/lib"</span>, <span class="tok-str">"/../"</span>, <span class="tok-str">"file/"</span> }, <span class="tok-str">"/file"</span>);</span> <span class="line" id="L761"> <span class="tok-kw">try</span> testResolvePosix(&.{ <span class="tok-str">"/some/dir"</span>, <span class="tok-str">"."</span>, <span class="tok-str">"/absolute/"</span> }, <span class="tok-str">"/absolute"</span>);</span> <span class="line" id="L762"> <span class="tok-kw">try</span> testResolvePosix(&.{ <span class="tok-str">"/foo/tmp.3/"</span>, <span class="tok-str">"../tmp.3/cycles/root.js"</span> }, <span class="tok-str">"/foo/tmp.3/cycles/root.js"</span>);</span> <span class="line" id="L763"></span> <span class="line" id="L764"> <span class="tok-comment">// Keep relative paths relative.</span> </span> <span class="line" id="L765"> <span class="tok-kw">try</span> testResolvePosix(&.{<span class="tok-str">"a/b"</span>}, <span class="tok-str">"a/b"</span>);</span> <span class="line" id="L766"> <span class="tok-kw">try</span> testResolvePosix(&.{<span class="tok-str">"."</span>}, <span class="tok-str">"."</span>);</span> <span class="line" id="L767"> <span class="tok-kw">try</span> testResolvePosix(&.{ <span class="tok-str">"."</span>, <span class="tok-str">"src/test.zig"</span>, <span class="tok-str">".."</span>, <span class="tok-str">"../test/cases.zig"</span> }, <span class="tok-str">"test/cases.zig"</span>);</span> <span class="line" id="L768">}</span> <span class="line" id="L769"></span> <span class="line" id="L770"><span class="tok-kw">fn</span> <span class="tok-fn">testResolveWindows</span>(paths: []<span class="tok-kw">const</span> []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, expected: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L771"> <span class="tok-kw">const</span> actual = <span class="tok-kw">try</span> resolveWindows(testing.allocator, paths);</span> <span class="line" id="L772"> <span class="tok-kw">defer</span> testing.allocator.free(actual);</span> <span class="line" id="L773"> <span class="tok-kw">try</span> testing.expectEqualStrings(expected, actual);</span> <span class="line" id="L774">}</span> <span class="line" id="L775"></span> <span class="line" id="L776"><span class="tok-kw">fn</span> <span class="tok-fn">testResolvePosix</span>(paths: []<span class="tok-kw">const</span> []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, expected: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L777"> <span class="tok-kw">const</span> actual = <span class="tok-kw">try</span> resolvePosix(testing.allocator, paths);</span> <span class="line" id="L778"> <span class="tok-kw">defer</span> testing.allocator.free(actual);</span> <span class="line" id="L779"> <span class="tok-kw">try</span> testing.expectEqualStrings(expected, actual);</span> <span class="line" id="L780">}</span> <span class="line" id="L781"></span> <span class="line" id="L782"><span class="tok-comment">/// Strip the last component from a file path.</span></span> <span class="line" id="L783"><span class="tok-comment">///</span></span> <span class="line" id="L784"><span class="tok-comment">/// If the path is a file in the current directory (no directory component)</span></span> <span class="line" id="L785"><span class="tok-comment">/// then returns null.</span></span> <span class="line" id="L786"><span class="tok-comment">///</span></span> <span class="line" id="L787"><span class="tok-comment">/// If the path is the root directory, returns null.</span></span> <span class="line" id="L788"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">dirname</span>(path: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) ?[]<span class="tok-kw">const</span> <span class="tok-type">u8</span> {</span> <span class="line" id="L789"> <span class="tok-kw">if</span> (native_os == .windows) {</span> <span class="line" id="L790"> <span class="tok-kw">return</span> dirnameWindows(path);</span> <span class="line" id="L791"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L792"> <span class="tok-kw">return</span> dirnamePosix(path);</span> <span class="line" id="L793"> }</span> <span class="line" id="L794">}</span> <span class="line" id="L795"></span> <span class="line" id="L796"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">dirnameWindows</span>(path: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) ?[]<span class="tok-kw">const</span> <span class="tok-type">u8</span> {</span> <span class="line" id="L797"> <span class="tok-kw">if</span> (path.len == <span class="tok-number">0</span>)</span> <span class="line" id="L798"> <span class="tok-kw">return</span> <span class="tok-null">null</span>;</span> <span class="line" id="L799"></span> <span class="line" id="L800"> <span class="tok-kw">const</span> root_slice = diskDesignatorWindows(path);</span> <span class="line" id="L801"> <span class="tok-kw">if</span> (path.len == root_slice.len)</span> <span class="line" id="L802"> <span class="tok-kw">return</span> <span class="tok-null">null</span>;</span> <span class="line" id="L803"></span> <span class="line" id="L804"> <span class="tok-kw">const</span> have_root_slash = path.len > root_slice.len <span class="tok-kw">and</span> (path[root_slice.len] == <span class="tok-str">'/'</span> <span class="tok-kw">or</span> path[root_slice.len] == <span class="tok-str">'\\'</span>);</span> <span class="line" id="L805"></span> <span class="line" id="L806"> <span class="tok-kw">var</span> end_index: <span class="tok-type">usize</span> = path.len - <span class="tok-number">1</span>;</span> <span class="line" id="L807"></span> <span class="line" id="L808"> <span class="tok-kw">while</span> (path[end_index] == <span class="tok-str">'/'</span> <span class="tok-kw">or</span> path[end_index] == <span class="tok-str">'\\'</span>) {</span> <span class="line" id="L809"> <span class="tok-kw">if</span> (end_index == <span class="tok-number">0</span>)</span> <span class="line" id="L810"> <span class="tok-kw">return</span> <span class="tok-null">null</span>;</span> <span class="line" id="L811"> end_index -= <span class="tok-number">1</span>;</span> <span class="line" id="L812"> }</span> <span class="line" id="L813"></span> <span class="line" id="L814"> <span class="tok-kw">while</span> (path[end_index] != <span class="tok-str">'/'</span> <span class="tok-kw">and</span> path[end_index] != <span class="tok-str">'\\'</span>) {</span> <span class="line" id="L815"> <span class="tok-kw">if</span> (end_index == <span class="tok-number">0</span>)</span> <span class="line" id="L816"> <span class="tok-kw">return</span> <span class="tok-null">null</span>;</span> <span class="line" id="L817"> end_index -= <span class="tok-number">1</span>;</span> <span class="line" id="L818"> }</span> <span class="line" id="L819"></span> <span class="line" id="L820"> <span class="tok-kw">if</span> (have_root_slash <span class="tok-kw">and</span> end_index == root_slice.len) {</span> <span class="line" id="L821"> end_index += <span class="tok-number">1</span>;</span> <span class="line" id="L822"> }</span> <span class="line" id="L823"></span> <span class="line" id="L824"> <span class="tok-kw">if</span> (end_index == <span class="tok-number">0</span>)</span> <span class="line" id="L825"> <span class="tok-kw">return</span> <span class="tok-null">null</span>;</span> <span class="line" id="L826"></span> <span class="line" id="L827"> <span class="tok-kw">return</span> path[<span class="tok-number">0</span>..end_index];</span> <span class="line" id="L828">}</span> <span class="line" id="L829"></span> <span class="line" id="L830"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">dirnamePosix</span>(path: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) ?[]<span class="tok-kw">const</span> <span class="tok-type">u8</span> {</span> <span class="line" id="L831"> <span class="tok-kw">if</span> (path.len == <span class="tok-number">0</span>)</span> <span class="line" id="L832"> <span class="tok-kw">return</span> <span class="tok-null">null</span>;</span> <span class="line" id="L833"></span> <span class="line" id="L834"> <span class="tok-kw">var</span> end_index: <span class="tok-type">usize</span> = path.len - <span class="tok-number">1</span>;</span> <span class="line" id="L835"> <span class="tok-kw">while</span> (path[end_index] == <span class="tok-str">'/'</span>) {</span> <span class="line" id="L836"> <span class="tok-kw">if</span> (end_index == <span class="tok-number">0</span>)</span> <span class="line" id="L837"> <span class="tok-kw">return</span> <span class="tok-null">null</span>;</span> <span class="line" id="L838"> end_index -= <span class="tok-number">1</span>;</span> <span class="line" id="L839"> }</span> <span class="line" id="L840"></span> <span class="line" id="L841"> <span class="tok-kw">while</span> (path[end_index] != <span class="tok-str">'/'</span>) {</span> <span class="line" id="L842"> <span class="tok-kw">if</span> (end_index == <span class="tok-number">0</span>)</span> <span class="line" id="L843"> <span class="tok-kw">return</span> <span class="tok-null">null</span>;</span> <span class="line" id="L844"> end_index -= <span class="tok-number">1</span>;</span> <span class="line" id="L845"> }</span> <span class="line" id="L846"></span> <span class="line" id="L847"> <span class="tok-kw">if</span> (end_index == <span class="tok-number">0</span> <span class="tok-kw">and</span> path[<span class="tok-number">0</span>] == <span class="tok-str">'/'</span>)</span> <span class="line" id="L848"> <span class="tok-kw">return</span> path[<span class="tok-number">0</span>..<span class="tok-number">1</span>];</span> <span class="line" id="L849"></span> <span class="line" id="L850"> <span class="tok-kw">if</span> (end_index == <span class="tok-number">0</span>)</span> <span class="line" id="L851"> <span class="tok-kw">return</span> <span class="tok-null">null</span>;</span> <span class="line" id="L852"></span> <span class="line" id="L853"> <span class="tok-kw">return</span> path[<span class="tok-number">0</span>..end_index];</span> <span class="line" id="L854">}</span> <span class="line" id="L855"></span> <span class="line" id="L856"><span class="tok-kw">test</span> <span class="tok-str">"dirnamePosix"</span> {</span> <span class="line" id="L857"> <span class="tok-kw">try</span> testDirnamePosix(<span class="tok-str">"/a/b/c"</span>, <span class="tok-str">"/a/b"</span>);</span> <span class="line" id="L858"> <span class="tok-kw">try</span> testDirnamePosix(<span class="tok-str">"/a/b/c///"</span>, <span class="tok-str">"/a/b"</span>);</span> <span class="line" id="L859"> <span class="tok-kw">try</span> testDirnamePosix(<span class="tok-str">"/a"</span>, <span class="tok-str">"/"</span>);</span> <span class="line" id="L860"> <span class="tok-kw">try</span> testDirnamePosix(<span class="tok-str">"/"</span>, <span class="tok-null">null</span>);</span> <span class="line" id="L861"> <span class="tok-kw">try</span> testDirnamePosix(<span class="tok-str">"//"</span>, <span class="tok-null">null</span>);</span> <span class="line" id="L862"> <span class="tok-kw">try</span> testDirnamePosix(<span class="tok-str">"///"</span>, <span class="tok-null">null</span>);</span> <span class="line" id="L863"> <span class="tok-kw">try</span> testDirnamePosix(<span class="tok-str">"////"</span>, <span class="tok-null">null</span>);</span> <span class="line" id="L864"> <span class="tok-kw">try</span> testDirnamePosix(<span class="tok-str">""</span>, <span class="tok-null">null</span>);</span> <span class="line" id="L865"> <span class="tok-kw">try</span> testDirnamePosix(<span class="tok-str">"a"</span>, <span class="tok-null">null</span>);</span> <span class="line" id="L866"> <span class="tok-kw">try</span> testDirnamePosix(<span class="tok-str">"a/"</span>, <span class="tok-null">null</span>);</span> <span class="line" id="L867"> <span class="tok-kw">try</span> testDirnamePosix(<span class="tok-str">"a//"</span>, <span class="tok-null">null</span>);</span> <span class="line" id="L868">}</span> <span class="line" id="L869"></span> <span class="line" id="L870"><span class="tok-kw">test</span> <span class="tok-str">"dirnameWindows"</span> {</span> <span class="line" id="L871"> <span class="tok-kw">try</span> testDirnameWindows(<span class="tok-str">"c:\\"</span>, <span class="tok-null">null</span>);</span> <span class="line" id="L872"> <span class="tok-kw">try</span> testDirnameWindows(<span class="tok-str">"c:\\foo"</span>, <span class="tok-str">"c:\\"</span>);</span> <span class="line" id="L873"> <span class="tok-kw">try</span> testDirnameWindows(<span class="tok-str">"c:\\foo\\"</span>, <span class="tok-str">"c:\\"</span>);</span> <span class="line" id="L874"> <span class="tok-kw">try</span> testDirnameWindows(<span class="tok-str">"c:\\foo\\bar"</span>, <span class="tok-str">"c:\\foo"</span>);</span> <span class="line" id="L875"> <span class="tok-kw">try</span> testDirnameWindows(<span class="tok-str">"c:\\foo\\bar\\"</span>, <span class="tok-str">"c:\\foo"</span>);</span> <span class="line" id="L876"> <span class="tok-kw">try</span> testDirnameWindows(<span class="tok-str">"c:\\foo\\bar\\baz"</span>, <span class="tok-str">"c:\\foo\\bar"</span>);</span> <span class="line" id="L877"> <span class="tok-kw">try</span> testDirnameWindows(<span class="tok-str">"\\"</span>, <span class="tok-null">null</span>);</span> <span class="line" id="L878"> <span class="tok-kw">try</span> testDirnameWindows(<span class="tok-str">"\\foo"</span>, <span class="tok-str">"\\"</span>);</span> <span class="line" id="L879"> <span class="tok-kw">try</span> testDirnameWindows(<span class="tok-str">"\\foo\\"</span>, <span class="tok-str">"\\"</span>);</span> <span class="line" id="L880"> <span class="tok-kw">try</span> testDirnameWindows(<span class="tok-str">"\\foo\\bar"</span>, <span class="tok-str">"\\foo"</span>);</span> <span class="line" id="L881"> <span class="tok-kw">try</span> testDirnameWindows(<span class="tok-str">"\\foo\\bar\\"</span>, <span class="tok-str">"\\foo"</span>);</span> <span class="line" id="L882"> <span class="tok-kw">try</span> testDirnameWindows(<span class="tok-str">"\\foo\\bar\\baz"</span>, <span class="tok-str">"\\foo\\bar"</span>);</span> <span class="line" id="L883"> <span class="tok-kw">try</span> testDirnameWindows(<span class="tok-str">"c:"</span>, <span class="tok-null">null</span>);</span> <span class="line" id="L884"> <span class="tok-kw">try</span> testDirnameWindows(<span class="tok-str">"c:foo"</span>, <span class="tok-null">null</span>);</span> <span class="line" id="L885"> <span class="tok-kw">try</span> testDirnameWindows(<span class="tok-str">"c:foo\\"</span>, <span class="tok-null">null</span>);</span> <span class="line" id="L886"> <span class="tok-kw">try</span> testDirnameWindows(<span class="tok-str">"c:foo\\bar"</span>, <span class="tok-str">"c:foo"</span>);</span> <span class="line" id="L887"> <span class="tok-kw">try</span> testDirnameWindows(<span class="tok-str">"c:foo\\bar\\"</span>, <span class="tok-str">"c:foo"</span>);</span> <span class="line" id="L888"> <span class="tok-kw">try</span> testDirnameWindows(<span class="tok-str">"c:foo\\bar\\baz"</span>, <span class="tok-str">"c:foo\\bar"</span>);</span> <span class="line" id="L889"> <span class="tok-kw">try</span> testDirnameWindows(<span class="tok-str">"file:stream"</span>, <span class="tok-null">null</span>);</span> <span class="line" id="L890"> <span class="tok-kw">try</span> testDirnameWindows(<span class="tok-str">"dir\\file:stream"</span>, <span class="tok-str">"dir"</span>);</span> <span class="line" id="L891"> <span class="tok-kw">try</span> testDirnameWindows(<span class="tok-str">"\\\\unc\\share"</span>, <span class="tok-null">null</span>);</span> <span class="line" id="L892"> <span class="tok-kw">try</span> testDirnameWindows(<span class="tok-str">"\\\\unc\\share\\foo"</span>, <span class="tok-str">"\\\\unc\\share\\"</span>);</span> <span class="line" id="L893"> <span class="tok-kw">try</span> testDirnameWindows(<span class="tok-str">"\\\\unc\\share\\foo\\"</span>, <span class="tok-str">"\\\\unc\\share\\"</span>);</span> <span class="line" id="L894"> <span class="tok-kw">try</span> testDirnameWindows(<span class="tok-str">"\\\\unc\\share\\foo\\bar"</span>, <span class="tok-str">"\\\\unc\\share\\foo"</span>);</span> <span class="line" id="L895"> <span class="tok-kw">try</span> testDirnameWindows(<span class="tok-str">"\\\\unc\\share\\foo\\bar\\"</span>, <span class="tok-str">"\\\\unc\\share\\foo"</span>);</span> <span class="line" id="L896"> <span class="tok-kw">try</span> testDirnameWindows(<span class="tok-str">"\\\\unc\\share\\foo\\bar\\baz"</span>, <span class="tok-str">"\\\\unc\\share\\foo\\bar"</span>);</span> <span class="line" id="L897"> <span class="tok-kw">try</span> testDirnameWindows(<span class="tok-str">"/a/b/"</span>, <span class="tok-str">"/a"</span>);</span> <span class="line" id="L898"> <span class="tok-kw">try</span> testDirnameWindows(<span class="tok-str">"/a/b"</span>, <span class="tok-str">"/a"</span>);</span> <span class="line" id="L899"> <span class="tok-kw">try</span> testDirnameWindows(<span class="tok-str">"/a"</span>, <span class="tok-str">"/"</span>);</span> <span class="line" id="L900"> <span class="tok-kw">try</span> testDirnameWindows(<span class="tok-str">""</span>, <span class="tok-null">null</span>);</span> <span class="line" id="L901"> <span class="tok-kw">try</span> testDirnameWindows(<span class="tok-str">"/"</span>, <span class="tok-null">null</span>);</span> <span class="line" id="L902"> <span class="tok-kw">try</span> testDirnameWindows(<span class="tok-str">"////"</span>, <span class="tok-null">null</span>);</span> <span class="line" id="L903"> <span class="tok-kw">try</span> testDirnameWindows(<span class="tok-str">"foo"</span>, <span class="tok-null">null</span>);</span> <span class="line" id="L904">}</span> <span class="line" id="L905"></span> <span class="line" id="L906"><span class="tok-kw">fn</span> <span class="tok-fn">testDirnamePosix</span>(input: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, expected_output: ?[]<span class="tok-kw">const</span> <span class="tok-type">u8</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L907"> <span class="tok-kw">if</span> (dirnamePosix(input)) \|output\| {</span> <span class="line" id="L908"> <span class="tok-kw">try</span> testing.expect(mem.eql(<span class="tok-type">u8</span>, output, expected_output.?));</span> <span class="line" id="L909"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L910"> <span class="tok-kw">try</span> testing.expect(expected_output == <span class="tok-null">null</span>);</span> <span class="line" id="L911"> }</span> <span class="line" id="L912">}</span> <span class="line" id="L913"></span> <span class="line" id="L914"><span class="tok-kw">fn</span> <span class="tok-fn">testDirnameWindows</span>(input: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, expected_output: ?[]<span class="tok-kw">const</span> <span class="tok-type">u8</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L915"> <span class="tok-kw">if</span> (dirnameWindows(input)) \|output\| {</span> <span class="line" id="L916"> <span class="tok-kw">try</span> testing.expect(mem.eql(<span class="tok-type">u8</span>, output, expected_output.?));</span> <span class="line" id="L917"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L918"> <span class="tok-kw">try</span> testing.expect(expected_output == <span class="tok-null">null</span>);</span> <span class="line" id="L919"> }</span> <span class="line" id="L920">}</span> <span class="line" id="L921"></span> <span class="line" id="L922"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">basename</span>(path: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) []<span class="tok-kw">const</span> <span class="tok-type">u8</span> {</span> <span class="line" id="L923"> <span class="tok-kw">if</span> (native_os == .windows) {</span> <span class="line" id="L924"> <span class="tok-kw">return</span> basenameWindows(path);</span> <span class="line" id="L925"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L926"> <span class="tok-kw">return</span> basenamePosix(path);</span> <span class="line" id="L927"> }</span> <span class="line" id="L928">}</span> <span class="line" id="L929"></span> <span class="line" id="L930"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">basenamePosix</span>(path: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) []<span class="tok-kw">const</span> <span class="tok-type">u8</span> {</span> <span class="line" id="L931"> <span class="tok-kw">if</span> (path.len == <span class="tok-number">0</span>)</span> <span class="line" id="L932"> <span class="tok-kw">return</span> &[_]<span class="tok-type">u8</span>{};</span> <span class="line" id="L933"></span> <span class="line" id="L934"> <span class="tok-kw">var</span> end_index: <span class="tok-type">usize</span> = path.len - <span class="tok-number">1</span>;</span> <span class="line" id="L935"> <span class="tok-kw">while</span> (path[end_index] == <span class="tok-str">'/'</span>) {</span> <span class="line" id="L936"> <span class="tok-kw">if</span> (end_index == <span class="tok-number">0</span>)</span> <span class="line" id="L937"> <span class="tok-kw">return</span> &[_]<span class="tok-type">u8</span>{};</span> <span class="line" id="L938"> end_index -= <span class="tok-number">1</span>;</span> <span class="line" id="L939"> }</span> <span class="line" id="L940"> <span class="tok-kw">var</span> start_index: <span class="tok-type">usize</span> = end_index;</span> <span class="line" id="L941"> end_index += <span class="tok-number">1</span>;</span> <span class="line" id="L942"> <span class="tok-kw">while</span> (path[start_index] != <span class="tok-str">'/'</span>) {</span> <span class="line" id="L943"> <span class="tok-kw">if</span> (start_index == <span class="tok-number">0</span>)</span> <span class="line" id="L944"> <span class="tok-kw">return</span> path[<span class="tok-number">0</span>..end_index];</span> <span class="line" id="L945"> start_index -= <span class="tok-number">1</span>;</span> <span class="line" id="L946"> }</span> <span class="line" id="L947"></span> <span class="line" id="L948"> <span class="tok-kw">return</span> path[start_index + <span class="tok-number">1</span> .. end_index];</span> <span class="line" id="L949">}</span> <span class="line" id="L950"></span> <span class="line" id="L951"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">basenameWindows</span>(path: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) []<span class="tok-kw">const</span> <span class="tok-type">u8</span> {</span> <span class="line" id="L952"> <span class="tok-kw">if</span> (path.len == <span class="tok-number">0</span>)</span> <span class="line" id="L953"> <span class="tok-kw">return</span> &[_]<span class="tok-type">u8</span>{};</span> <span class="line" id="L954"></span> <span class="line" id="L955"> <span class="tok-kw">var</span> end_index: <span class="tok-type">usize</span> = path.len - <span class="tok-number">1</span>;</span> <span class="line" id="L956"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L957"> <span class="tok-kw">const</span> byte = path[end_index];</span> <span class="line" id="L958"> <span class="tok-kw">if</span> (byte == <span class="tok-str">'/'</span> <span class="tok-kw">or</span> byte == <span class="tok-str">'\\'</span>) {</span> <span class="line" id="L959"> <span class="tok-kw">if</span> (end_index == <span class="tok-number">0</span>)</span> <span class="line" id="L960"> <span class="tok-kw">return</span> &[_]<span class="tok-type">u8</span>{};</span> <span class="line" id="L961"> end_index -= <span class="tok-number">1</span>;</span> <span class="line" id="L962"> <span class="tok-kw">continue</span>;</span> <span class="line" id="L963"> }</span> <span class="line" id="L964"> <span class="tok-kw">if</span> (byte == <span class="tok-str">':'</span> <span class="tok-kw">and</span> end_index == <span class="tok-number">1</span>) {</span> <span class="line" id="L965"> <span class="tok-kw">return</span> &[_]<span class="tok-type">u8</span>{};</span> <span class="line" id="L966"> }</span> <span class="line" id="L967"> <span class="tok-kw">break</span>;</span> <span class="line" id="L968"> }</span> <span class="line" id="L969"></span> <span class="line" id="L970"> <span class="tok-kw">var</span> start_index: <span class="tok-type">usize</span> = end_index;</span> <span class="line" id="L971"> end_index += <span class="tok-number">1</span>;</span> <span class="line" id="L972"> <span class="tok-kw">while</span> (path[start_index] != <span class="tok-str">'/'</span> <span class="tok-kw">and</span> path[start_index] != <span class="tok-str">'\\'</span> <span class="tok-kw">and</span></span> <span class="line" id="L973"> !(path[start_index] == <span class="tok-str">':'</span> <span class="tok-kw">and</span> start_index == <span class="tok-number">1</span>))</span> <span class="line" id="L974"> {</span> <span class="line" id="L975"> <span class="tok-kw">if</span> (start_index == <span class="tok-number">0</span>)</span> <span class="line" id="L976"> <span class="tok-kw">return</span> path[<span class="tok-number">0</span>..end_index];</span> <span class="line" id="L977"> start_index -= <span class="tok-number">1</span>;</span> <span class="line" id="L978"> }</span> <span class="line" id="L979"></span> <span class="line" id="L980"> <span class="tok-kw">return</span> path[start_index + <span class="tok-number">1</span> .. end_index];</span> <span class="line" id="L981">}</span> <span class="line" id="L982"></span> <span class="line" id="L983"><span class="tok-kw">test</span> <span class="tok-str">"basename"</span> {</span> <span class="line" id="L984"> <span class="tok-kw">try</span> testBasename(<span class="tok-str">""</span>, <span class="tok-str">""</span>);</span> <span class="line" id="L985"> <span class="tok-kw">try</span> testBasename(<span class="tok-str">"/"</span>, <span class="tok-str">""</span>);</span> <span class="line" id="L986"> <span class="tok-kw">try</span> testBasename(<span class="tok-str">"/dir/basename.ext"</span>, <span class="tok-str">"basename.ext"</span>);</span> <span class="line" id="L987"> <span class="tok-kw">try</span> testBasename(<span class="tok-str">"/basename.ext"</span>, <span class="tok-str">"basename.ext"</span>);</span> <span class="line" id="L988"> <span class="tok-kw">try</span> testBasename(<span class="tok-str">"basename.ext"</span>, <span class="tok-str">"basename.ext"</span>);</span> <span class="line" id="L989"> <span class="tok-kw">try</span> testBasename(<span class="tok-str">"basename.ext/"</span>, <span class="tok-str">"basename.ext"</span>);</span> <span class="line" id="L990"> <span class="tok-kw">try</span> testBasename(<span class="tok-str">"basename.ext//"</span>, <span class="tok-str">"basename.ext"</span>);</span> <span class="line" id="L991"> <span class="tok-kw">try</span> testBasename(<span class="tok-str">"/aaa/bbb"</span>, <span class="tok-str">"bbb"</span>);</span> <span class="line" id="L992"> <span class="tok-kw">try</span> testBasename(<span class="tok-str">"/aaa/"</span>, <span class="tok-str">"aaa"</span>);</span> <span class="line" id="L993"> <span class="tok-kw">try</span> testBasename(<span class="tok-str">"/aaa/b"</span>, <span class="tok-str">"b"</span>);</span> <span class="line" id="L994"> <span class="tok-kw">try</span> testBasename(<span class="tok-str">"/a/b"</span>, <span class="tok-str">"b"</span>);</span> <span class="line" id="L995"> <span class="tok-kw">try</span> testBasename(<span class="tok-str">"//a"</span>, <span class="tok-str">"a"</span>);</span> <span class="line" id="L996"></span> <span class="line" id="L997"> <span class="tok-kw">try</span> testBasenamePosix(<span class="tok-str">"\\dir\\basename.ext"</span>, <span class="tok-str">"\\dir\\basename.ext"</span>);</span> <span class="line" id="L998"> <span class="tok-kw">try</span> testBasenamePosix(<span class="tok-str">"\\basename.ext"</span>, <span class="tok-str">"\\basename.ext"</span>);</span> <span class="line" id="L999"> <span class="tok-kw">try</span> testBasenamePosix(<span class="tok-str">"basename.ext"</span>, <span class="tok-str">"basename.ext"</span>);</span> <span class="line" id="L1000"> <span class="tok-kw">try</span> testBasenamePosix(<span class="tok-str">"basename.ext\\"</span>, <span class="tok-str">"basename.ext\\"</span>);</span> <span class="line" id="L1001"> <span class="tok-kw">try</span> testBasenamePosix(<span class="tok-str">"basename.ext\\\\"</span>, <span class="tok-str">"basename.ext\\\\"</span>);</span> <span class="line" id="L1002"> <span class="tok-kw">try</span> testBasenamePosix(<span class="tok-str">"foo"</span>, <span class="tok-str">"foo"</span>);</span> <span class="line" id="L1003"></span> <span class="line" id="L1004"> <span class="tok-kw">try</span> testBasenameWindows(<span class="tok-str">"\\dir\\basename.ext"</span>, <span class="tok-str">"basename.ext"</span>);</span> <span class="line" id="L1005"> <span class="tok-kw">try</span> testBasenameWindows(<span class="tok-str">"\\basename.ext"</span>, <span class="tok-str">"basename.ext"</span>);</span> <span class="line" id="L1006"> <span class="tok-kw">try</span> testBasenameWindows(<span class="tok-str">"basename.ext"</span>, <span class="tok-str">"basename.ext"</span>);</span> <span class="line" id="L1007"> <span class="tok-kw">try</span> testBasenameWindows(<span class="tok-str">"basename.ext\\"</span>, <span class="tok-str">"basename.ext"</span>);</span> <span class="line" id="L1008"> <span class="tok-kw">try</span> testBasenameWindows(<span class="tok-str">"basename.ext\\\\"</span>, <span class="tok-str">"basename.ext"</span>);</span> <span class="line" id="L1009"> <span class="tok-kw">try</span> testBasenameWindows(<span class="tok-str">"foo"</span>, <span class="tok-str">"foo"</span>);</span> <span class="line" id="L1010"> <span class="tok-kw">try</span> testBasenameWindows(<span class="tok-str">"C:"</span>, <span class="tok-str">""</span>);</span> <span class="line" id="L1011"> <span class="tok-kw">try</span> testBasenameWindows(<span class="tok-str">"C:."</span>, <span class="tok-str">"."</span>);</span> <span class="line" id="L1012"> <span class="tok-kw">try</span> testBasenameWindows(<span class="tok-str">"C:\\"</span>, <span class="tok-str">""</span>);</span> <span class="line" id="L1013"> <span class="tok-kw">try</span> testBasenameWindows(<span class="tok-str">"C:\\dir\\base.ext"</span>, <span class="tok-str">"base.ext"</span>);</span> <span class="line" id="L1014"> <span class="tok-kw">try</span> testBasenameWindows(<span class="tok-str">"C:\\basename.ext"</span>, <span class="tok-str">"basename.ext"</span>);</span> <span class="line" id="L1015"> <span class="tok-kw">try</span> testBasenameWindows(<span class="tok-str">"C:basename.ext"</span>, <span class="tok-str">"basename.ext"</span>);</span> <span class="line" id="L1016"> <span class="tok-kw">try</span> testBasenameWindows(<span class="tok-str">"C:basename.ext\\"</span>, <span class="tok-str">"basename.ext"</span>);</span> <span class="line" id="L1017"> <span class="tok-kw">try</span> testBasenameWindows(<span class="tok-str">"C:basename.ext\\\\"</span>, <span class="tok-str">"basename.ext"</span>);</span> <span class="line" id="L1018"> <span class="tok-kw">try</span> testBasenameWindows(<span class="tok-str">"C:foo"</span>, <span class="tok-str">"foo"</span>);</span> <span class="line" id="L1019"> <span class="tok-kw">try</span> testBasenameWindows(<span class="tok-str">"file:stream"</span>, <span class="tok-str">"file:stream"</span>);</span> <span class="line" id="L1020">}</span> <span class="line" id="L1021"></span> <span class="line" id="L1022"><span class="tok-kw">fn</span> <span class="tok-fn">testBasename</span>(input: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, expected_output: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L1023"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, expected_output, basename(input));</span> <span class="line" id="L1024">}</span> <span class="line" id="L1025"></span> <span class="line" id="L1026"><span class="tok-kw">fn</span> <span class="tok-fn">testBasenamePosix</span>(input: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, expected_output: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L1027"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, expected_output, basenamePosix(input));</span> <span class="line" id="L1028">}</span> <span class="line" id="L1029"></span> <span class="line" id="L1030"><span class="tok-kw">fn</span> <span class="tok-fn">testBasenameWindows</span>(input: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, expected_output: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L1031"> <span class="tok-kw">try</span> testing.expectEqualSlices(<span class="tok-type">u8</span>, expected_output, basenameWindows(input));</span> <span class="line" id="L1032">}</span> <span class="line" id="L1033"></span> <span class="line" id="L1034"><span class="tok-comment">/// Returns the relative path from `from` to `to`. If `from` and `to` each</span></span> <span class="line" id="L1035"><span class="tok-comment">/// resolve to the same path (after calling `resolve` on each), a zero-length</span></span> <span class="line" id="L1036"><span class="tok-comment">/// string is returned.</span></span> <span class="line" id="L1037"><span class="tok-comment">/// On Windows this canonicalizes the drive to a capital letter and paths to `\\`.</span></span> <span class="line" id="L1038"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">relative</span>(allocator: Allocator, from: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, to: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) ![]<span class="tok-type">u8</span> {</span> <span class="line" id="L1039"> <span class="tok-kw">if</span> (native_os == .windows) {</span> <span class="line" id="L1040"> <span class="tok-kw">return</span> relativeWindows(allocator, from, to);</span> <span class="line" id="L1041"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L1042"> <span class="tok-kw">return</span> relativePosix(allocator, from, to);</span> <span class="line" id="L1043"> }</span> <span class="line" id="L1044">}</span> <span class="line" id="L1045"></span> <span class="line" id="L1046"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">relativeWindows</span>(allocator: Allocator, from: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, to: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) ![]<span class="tok-type">u8</span> {</span> <span class="line" id="L1047"> <span class="tok-kw">const</span> cwd = <span class="tok-kw">try</span> process.getCwdAlloc(allocator);</span> <span class="line" id="L1048"> <span class="tok-kw">defer</span> allocator.free(cwd);</span> <span class="line" id="L1049"> <span class="tok-kw">const</span> resolved_from = <span class="tok-kw">try</span> resolveWindows(allocator, &[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ cwd, from });</span> <span class="line" id="L1050"> <span class="tok-kw">defer</span> allocator.free(resolved_from);</span> <span class="line" id="L1051"></span> <span class="line" id="L1052"> <span class="tok-kw">var</span> clean_up_resolved_to = <span class="tok-null">true</span>;</span> <span class="line" id="L1053"> <span class="tok-kw">const</span> resolved_to = <span class="tok-kw">try</span> resolveWindows(allocator, &[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ cwd, to });</span> <span class="line" id="L1054"> <span class="tok-kw">defer</span> <span class="tok-kw">if</span> (clean_up_resolved_to) allocator.free(resolved_to);</span> <span class="line" id="L1055"></span> <span class="line" id="L1056"> <span class="tok-kw">const</span> parsed_from = windowsParsePath(resolved_from);</span> <span class="line" id="L1057"> <span class="tok-kw">const</span> parsed_to = windowsParsePath(resolved_to);</span> <span class="line" id="L1058"> <span class="tok-kw">const</span> result_is_to = x: {</span> <span class="line" id="L1059"> <span class="tok-kw">if</span> (parsed_from.kind != parsed_to.kind) {</span> <span class="line" id="L1060"> <span class="tok-kw">break</span> :x <span class="tok-null">true</span>;</span> <span class="line" id="L1061"> } <span class="tok-kw">else</span> <span class="tok-kw">switch</span> (parsed_from.kind) {</span> <span class="line" id="L1062"> .NetworkShare => {</span> <span class="line" id="L1063"> <span class="tok-kw">break</span> :x !networkShareServersEql(parsed_to.disk_designator, parsed_from.disk_designator);</span> <span class="line" id="L1064"> },</span> <span class="line" id="L1065"> .Drive => {</span> <span class="line" id="L1066"> <span class="tok-kw">break</span> :x ascii.toUpper(parsed_from.disk_designator[<span class="tok-number">0</span>]) != ascii.toUpper(parsed_to.disk_designator[<span class="tok-number">0</span>]);</span> <span class="line" id="L1067"> },</span> <span class="line" id="L1068"> .None => {</span> <span class="line" id="L1069"> <span class="tok-kw">break</span> :x <span class="tok-null">false</span>;</span> <span class="line" id="L1070"> },</span> <span class="line" id="L1071"> }</span> <span class="line" id="L1072"> };</span> <span class="line" id="L1073"></span> <span class="line" id="L1074"> <span class="tok-kw">if</span> (result_is_to) {</span> <span class="line" id="L1075"> clean_up_resolved_to = <span class="tok-null">false</span>;</span> <span class="line" id="L1076"> <span class="tok-kw">return</span> resolved_to;</span> <span class="line" id="L1077"> }</span> <span class="line" id="L1078"></span> <span class="line" id="L1079"> <span class="tok-kw">var</span> from_it = mem.tokenizeAny(<span class="tok-type">u8</span>, resolved_from, <span class="tok-str">"/\\"</span>);</span> <span class="line" id="L1080"> <span class="tok-kw">var</span> to_it = mem.tokenizeAny(<span class="tok-type">u8</span>, resolved_to, <span class="tok-str">"/\\"</span>);</span> <span class="line" id="L1081"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L1082"> <span class="tok-kw">const</span> from_component = from_it.next() <span class="tok-kw">orelse</span> <span class="tok-kw">return</span> allocator.dupe(<span class="tok-type">u8</span>, to_it.rest());</span> <span class="line" id="L1083"> <span class="tok-kw">const</span> to_rest = to_it.rest();</span> <span class="line" id="L1084"> <span class="tok-kw">if</span> (to_it.next()) \|to_component\| {</span> <span class="line" id="L1085"> <span class="tok-kw">if</span> (windows.eqlIgnoreCaseUtf8(from_component, to_component))</span> <span class="line" id="L1086"> <span class="tok-kw">continue</span>;</span> <span class="line" id="L1087"> }</span> <span class="line" id="L1088"> <span class="tok-kw">var</span> up_index_end = <span class="tok-str">".."</span>.len;</span> <span class="line" id="L1089"> <span class="tok-kw">while</span> (from_it.next()) \|_\| {</span> <span class="line" id="L1090"> up_index_end += <span class="tok-str">"\\.."</span>.len;</span> <span class="line" id="L1091"> }</span> <span class="line" id="L1092"> <span class="tok-kw">const</span> result = <span class="tok-kw">try</span> allocator.alloc(<span class="tok-type">u8</span>, up_index_end + <span class="tok-builtin">@intFromBool</span>(to_rest.len > <span class="tok-number">0</span>) + to_rest.len);</span> <span class="line" id="L1093"> <span class="tok-kw">errdefer</span> allocator.free(result);</span> <span class="line" id="L1094"></span> <span class="line" id="L1095"> result[<span class="tok-number">0</span>..<span class="tok-number">2</span>]. = <span class="tok-str">".."</span>.;</span> <span class="line" id="L1096"> <span class="tok-kw">var</span> result_index: <span class="tok-type">usize</span> = <span class="tok-number">2</span>;</span> <span class="line" id="L1097"> <span class="tok-kw">while</span> (result_index < up_index_end) {</span> <span class="line" id="L1098"> result[result_index..][<span class="tok-number">0</span>..<span class="tok-number">3</span>]. = <span class="tok-str">"\\.."</span>.;</span> <span class="line" id="L1099"> result_index += <span class="tok-number">3</span>;</span> <span class="line" id="L1100"> }</span> <span class="line" id="L1101"></span> <span class="line" id="L1102"> <span class="tok-kw">var</span> rest_it = mem.tokenizeAny(<span class="tok-type">u8</span>, to_rest, <span class="tok-str">"/\\"</span>);</span> <span class="line" id="L1103"> <span class="tok-kw">while</span> (rest_it.next()) \|to_component\| {</span> <span class="line" id="L1104"> result[result_index] = <span class="tok-str">'\\'</span>;</span> <span class="line" id="L1105"> result_index += <span class="tok-number">1</span>;</span> <span class="line" id="L1106"> <span class="tok-builtin">@memcpy</span>(result[result_index..][<span class="tok-number">0</span>..to_component.len], to_component);</span> <span class="line" id="L1107"> result_index += to_component.len;</span> <span class="line" id="L1108"> }</span> <span class="line" id="L1109"></span> <span class="line" id="L1110"> <span class="tok-kw">return</span> allocator.realloc(result, result_index);</span> <span class="line" id="L1111"> }</span> <span class="line" id="L1112"></span> <span class="line" id="L1113"> <span class="tok-kw">return</span> [_]<span class="tok-type">u8</span>{};</span> <span class="line" id="L1114">}</span> <span class="line" id="L1115"></span> <span class="line" id="L1116"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">relativePosix</span>(allocator: Allocator, from: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, to: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) ![]<span class="tok-type">u8</span> {</span> <span class="line" id="L1117"> <span class="tok-kw">const</span> cwd = <span class="tok-kw">try</span> process.getCwdAlloc(allocator);</span> <span class="line" id="L1118"> <span class="tok-kw">defer</span> allocator.free(cwd);</span> <span class="line" id="L1119"> <span class="tok-kw">const</span> resolved_from = <span class="tok-kw">try</span> resolvePosix(allocator, &[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ cwd, from });</span> <span class="line" id="L1120"> <span class="tok-kw">defer</span> allocator.free(resolved_from);</span> <span class="line" id="L1121"> <span class="tok-kw">const</span> resolved_to = <span class="tok-kw">try</span> resolvePosix(allocator, &[_][]<span class="tok-kw">const</span> <span class="tok-type">u8</span>{ cwd, to });</span> <span class="line" id="L1122"> <span class="tok-kw">defer</span> allocator.free(resolved_to);</span> <span class="line" id="L1123"></span> <span class="line" id="L1124"> <span class="tok-kw">var</span> from_it = mem.tokenizeScalar(<span class="tok-type">u8</span>, resolved_from, <span class="tok-str">'/'</span>);</span> <span class="line" id="L1125"> <span class="tok-kw">var</span> to_it = mem.tokenizeScalar(<span class="tok-type">u8</span>, resolved_to, <span class="tok-str">'/'</span>);</span> <span class="line" id="L1126"> <span class="tok-kw">while</span> (<span class="tok-null">true</span>) {</span> <span class="line" id="L1127"> <span class="tok-kw">const</span> from_component = from_it.next() <span class="tok-kw">orelse</span> <span class="tok-kw">return</span> allocator.dupe(<span class="tok-type">u8</span>, to_it.rest());</span> <span class="line" id="L1128"> <span class="tok-kw">const</span> to_rest = to_it.rest();</span> <span class="line" id="L1129"> <span class="tok-kw">if</span> (to_it.next()) \|to_component\| {</span> <span class="line" id="L1130"> <span class="tok-kw">if</span> (mem.eql(<span class="tok-type">u8</span>, from_component, to_component))</span> <span class="line" id="L1131"> <span class="tok-kw">continue</span>;</span> <span class="line" id="L1132"> }</span> <span class="line" id="L1133"> <span class="tok-kw">var</span> up_count: <span class="tok-type">usize</span> = <span class="tok-number">1</span>;</span> <span class="line" id="L1134"> <span class="tok-kw">while</span> (from_it.next()) \|_\| {</span> <span class="line" id="L1135"> up_count += <span class="tok-number">1</span>;</span> <span class="line" id="L1136"> }</span> <span class="line" id="L1137"> <span class="tok-kw">const</span> up_index_end = up_count <span class="tok-str">"../"</span>.len;</span> <span class="line" id="L1138"> <span class="tok-kw">const</span> result = <span class="tok-kw">try</span> allocator.alloc(<span class="tok-type">u8</span>, up_index_end + to_rest.len);</span> <span class="line" id="L1139"> <span class="tok-kw">errdefer</span> allocator.free(result);</span> <span class="line" id="L1140"></span> <span class="line" id="L1141"> <span class="tok-kw">var</span> result_index: <span class="tok-type">usize</span> = <span class="tok-number">0</span>;</span> <span class="line" id="L1142"> <span class="tok-kw">while</span> (result_index < up_index_end) {</span> <span class="line" id="L1143"> result[result_index..][<span class="tok-number">0</span>..<span class="tok-number">3</span>].* = <span class="tok-str">"../"</span>.*;</span> <span class="line" id="L1144"> result_index += <span class="tok-number">3</span>;</span> <span class="line" id="L1145"> }</span> <span class="line" id="L1146"> <span class="tok-kw">if</span> (to_rest.len == <span class="tok-number">0</span>) {</span> <span class="line" id="L1147"> <span class="tok-comment">// shave off the trailing slash</span> </span> <span class="line" id="L1148"> <span class="tok-kw">return</span> allocator.realloc(result, result_index - <span class="tok-number">1</span>);</span> <span class="line" id="L1149"> }</span> <span class="line" id="L1150"></span> <span class="line" id="L1151"> <span class="tok-builtin">@memcpy</span>(result[result_index..][<span class="tok-number">0</span>..to_rest.len], to_rest);</span> <span class="line" id="L1152"> <span class="tok-kw">return</span> result;</span> <span class="line" id="L1153"> }</span> <span class="line" id="L1154"></span> <span class="line" id="L1155"> <span class="tok-kw">return</span> [_]<span class="tok-type">u8</span>{};</span> <span class="line" id="L1156">}</span> <span class="line" id="L1157"></span> <span class="line" id="L1158"><span class="tok-kw">test</span> <span class="tok-str">"relative"</span> {</span> <span class="line" id="L1159"> <span class="tok-kw">try</span> testRelativeWindows(<span class="tok-str">"c:/blah\\blah"</span>, <span class="tok-str">"d:/games"</span>, <span class="tok-str">"D:\\games"</span>);</span> <span class="line" id="L1160"> <span class="tok-kw">try</span> testRelativeWindows(<span class="tok-str">"c:/aaaa/bbbb"</span>, <span class="tok-str">"c:/aaaa"</span>, <span class="tok-str">".."</span>);</span> <span class="line" id="L1161"> <span class="tok-kw">try</span> testRelativeWindows(<span class="tok-str">"c:/aaaa/bbbb"</span>, <span class="tok-str">"c:/cccc"</span>, <span class="tok-str">"..\\..\\cccc"</span>);</span> <span class="line" id="L1162"> <span class="tok-kw">try</span> testRelativeWindows(<span class="tok-str">"c:/aaaa/bbbb"</span>, <span class="tok-str">"C:/aaaa/bbbb"</span>, <span class="tok-str">""</span>);</span> <span class="line" id="L1163"> <span class="tok-kw">try</span> testRelativeWindows(<span class="tok-str">"c:/aaaa/bbbb"</span>, <span class="tok-str">"c:/aaaa/cccc"</span>, <span class="tok-str">"..\\cccc"</span>);</span> <span class="line" id="L1164"> <span class="tok-kw">try</span> testRelativeWindows(<span class="tok-str">"c:/aaaa/"</span>, <span class="tok-str">"c:/aaaa/cccc"</span>, <span class="tok-str">"cccc"</span>);</span> <span class="line" id="L1165"> <span class="tok-kw">try</span> testRelativeWindows(<span class="tok-str">"c:/"</span>, <span class="tok-str">"c:\\aaaa\\bbbb"</span>, <span class="tok-str">"aaaa\\bbbb"</span>);</span> <span class="line" id="L1166"> <span class="tok-kw">try</span> testRelativeWindows(<span class="tok-str">"c:/aaaa/bbbb"</span>, <span class="tok-str">"d:\\"</span>, <span class="tok-str">"D:\\"</span>);</span> <span class="line" id="L1167"> <span class="tok-kw">try</span> testRelativeWindows(<span class="tok-str">"c:/AaAa/bbbb"</span>, <span class="tok-str">"c:/aaaa/bbbb"</span>, <span class="tok-str">""</span>);</span> <span class="line" id="L1168"> <span class="tok-kw">try</span> testRelativeWindows(<span class="tok-str">"c:/aaaaa/"</span>, <span class="tok-str">"c:/aaaa/cccc"</span>, <span class="tok-str">"..\\aaaa\\cccc"</span>);</span> <span class="line" id="L1169"> <span class="tok-kw">try</span> testRelativeWindows(<span class="tok-str">"C:\\foo\\bar\\baz\\quux"</span>, <span class="tok-str">"C:\\"</span>, <span class="tok-str">"..\\..\\..\\.."</span>);</span> <span class="line" id="L1170"> <span class="tok-kw">try</span> testRelativeWindows(<span class="tok-str">"C:\\foo\\test"</span>, <span class="tok-str">"C:\\foo\\test\\bar\\package.json"</span>, <span class="tok-str">"bar\\package.json"</span>);</span> <span class="line" id="L1171"> <span class="tok-kw">try</span> testRelativeWindows(<span class="tok-str">"C:\\foo\\bar\\baz-quux"</span>, <span class="tok-str">"C:\\foo\\bar\\baz"</span>, <span class="tok-str">"..\\baz"</span>);</span> <span class="line" id="L1172"> <span class="tok-kw">try</span> testRelativeWindows(<span class="tok-str">"C:\\foo\\bar\\baz"</span>, <span class="tok-str">"C:\\foo\\bar\\baz-quux"</span>, <span class="tok-str">"..\\baz-quux"</span>);</span> <span class="line" id="L1173"> <span class="tok-kw">try</span> testRelativeWindows(<span class="tok-str">"\\\\foo\\bar"</span>, <span class="tok-str">"\\\\foo\\bar\\baz"</span>, <span class="tok-str">"baz"</span>);</span> <span class="line" id="L1174"> <span class="tok-kw">try</span> testRelativeWindows(<span class="tok-str">"\\\\foo\\bar\\baz"</span>, <span class="tok-str">"\\\\foo\\bar"</span>, <span class="tok-str">".."</span>);</span> <span class="line" id="L1175"> <span class="tok-kw">try</span> testRelativeWindows(<span class="tok-str">"\\\\foo\\bar\\baz-quux"</span>, <span class="tok-str">"\\\\foo\\bar\\baz"</span>, <span class="tok-str">"..\\baz"</span>);</span> <span class="line" id="L1176"> <span class="tok-kw">try</span> testRelativeWindows(<span class="tok-str">"\\\\foo\\bar\\baz"</span>, <span class="tok-str">"\\\\foo\\bar\\baz-quux"</span>, <span class="tok-str">"..\\baz-quux"</span>);</span> <span class="line" id="L1177"> <span class="tok-kw">try</span> testRelativeWindows(<span class="tok-str">"C:\\baz-quux"</span>, <span class="tok-str">"C:\\baz"</span>, <span class="tok-str">"..\\baz"</span>);</span> <span class="line" id="L1178"> <span class="tok-kw">try</span> testRelativeWindows(<span class="tok-str">"C:\\baz"</span>, <span class="tok-str">"C:\\baz-quux"</span>, <span class="tok-str">"..\\baz-quux"</span>);</span> <span class="line" id="L1179"> <span class="tok-kw">try</span> testRelativeWindows(<span class="tok-str">"\\\\foo\\baz-quux"</span>, <span class="tok-str">"\\\\foo\\baz"</span>, <span class="tok-str">"..\\baz"</span>);</span> <span class="line" id="L1180"> <span class="tok-kw">try</span> testRelativeWindows(<span class="tok-str">"\\\\foo\\baz"</span>, <span class="tok-str">"\\\\foo\\baz-quux"</span>, <span class="tok-str">"..\\baz-quux"</span>);</span> <span class="line" id="L1181"> <span class="tok-kw">try</span> testRelativeWindows(<span class="tok-str">"C:\\baz"</span>, <span class="tok-str">"\\\\foo\\bar\\baz"</span>, <span class="tok-str">"\\\\foo\\bar\\baz"</span>);</span> <span class="line" id="L1182"> <span class="tok-kw">try</span> testRelativeWindows(<span class="tok-str">"\\\\foo\\bar\\baz"</span>, <span class="tok-str">"C:\\baz"</span>, <span class="tok-str">"C:\\baz"</span>);</span> <span class="line" id="L1183"></span> <span class="line" id="L1184"> <span class="tok-kw">try</span> testRelativeWindows(<span class="tok-str">"a/b/c"</span>, <span class="tok-str">"a\\b"</span>, <span class="tok-str">".."</span>);</span> <span class="line" id="L1185"> <span class="tok-kw">try</span> testRelativeWindows(<span class="tok-str">"a/b/c"</span>, <span class="tok-str">"a"</span>, <span class="tok-str">"..\\.."</span>);</span> <span class="line" id="L1186"> <span class="tok-kw">try</span> testRelativeWindows(<span class="tok-str">"a/b/c"</span>, <span class="tok-str">"a\\b\\c\\d"</span>, <span class="tok-str">"d"</span>);</span> <span class="line" id="L1187"></span> <span class="line" id="L1188"> <span class="tok-kw">try</span> testRelativeWindows(<span class="tok-str">"\\\\FOO\\bar\\baz"</span>, <span class="tok-str">"\\\\foo\\BAR\\BAZ"</span>, <span class="tok-str">""</span>);</span> <span class="line" id="L1189"> <span class="tok-comment">// Unicode-aware case-insensitive path comparison</span> </span> <span class="line" id="L1190"> <span class="tok-kw">try</span> testRelativeWindows(<span class="tok-str">"\\\\кириллица\\ελληνικά\\português"</span>, <span class="tok-str">"\\\\КИРИЛЛИЦА\\ΕΛΛΗΝΙΚΆ\\PORTUGUÊS"</span>, <span class="tok-str">""</span>);</span> <span class="line" id="L1191"></span> <span class="line" id="L1192"> <span class="tok-kw">try</span> testRelativePosix(<span class="tok-str">"/var/lib"</span>, <span class="tok-str">"/var"</span>, <span class="tok-str">".."</span>);</span> <span class="line" id="L1193"> <span class="tok-kw">try</span> testRelativePosix(<span class="tok-str">"/var/lib"</span>, <span class="tok-str">"/bin"</span>, <span class="tok-str">"../../bin"</span>);</span> <span class="line" id="L1194"> <span class="tok-kw">try</span> testRelativePosix(<span class="tok-str">"/var/lib"</span>, <span class="tok-str">"/var/lib"</span>, <span class="tok-str">""</span>);</span> <span class="line" id="L1195"> <span class="tok-kw">try</span> testRelativePosix(<span class="tok-str">"/var/lib"</span>, <span class="tok-str">"/var/apache"</span>, <span class="tok-str">"../apache"</span>);</span> <span class="line" id="L1196"> <span class="tok-kw">try</span> testRelativePosix(<span class="tok-str">"/var/"</span>, <span class="tok-str">"/var/lib"</span>, <span class="tok-str">"lib"</span>);</span> <span class="line" id="L1197"> <span class="tok-kw">try</span> testRelativePosix(<span class="tok-str">"/"</span>, <span class="tok-str">"/var/lib"</span>, <span class="tok-str">"var/lib"</span>);</span> <span class="line" id="L1198"> <span class="tok-kw">try</span> testRelativePosix(<span class="tok-str">"/foo/test"</span>, <span class="tok-str">"/foo/test/bar/package.json"</span>, <span class="tok-str">"bar/package.json"</span>);</span> <span class="line" id="L1199"> <span class="tok-kw">try</span> testRelativePosix(<span class="tok-str">"/Users/a/web/b/test/mails"</span>, <span class="tok-str">"/Users/a/web/b"</span>, <span class="tok-str">"../.."</span>);</span> <span class="line" id="L1200"> <span class="tok-kw">try</span> testRelativePosix(<span class="tok-str">"/foo/bar/baz-quux"</span>, <span class="tok-str">"/foo/bar/baz"</span>, <span class="tok-str">"../baz"</span>);</span> <span class="line" id="L1201"> <span class="tok-kw">try</span> testRelativePosix(<span class="tok-str">"/foo/bar/baz"</span>, <span class="tok-str">"/foo/bar/baz-quux"</span>, <span class="tok-str">"../baz-quux"</span>);</span> <span class="line" id="L1202"> <span class="tok-kw">try</span> testRelativePosix(<span class="tok-str">"/baz-quux"</span>, <span class="tok-str">"/baz"</span>, <span class="tok-str">"../baz"</span>);</span> <span class="line" id="L1203"> <span class="tok-kw">try</span> testRelativePosix(<span class="tok-str">"/baz"</span>, <span class="tok-str">"/baz-quux"</span>, <span class="tok-str">"../baz-quux"</span>);</span> <span class="line" id="L1204">}</span> <span class="line" id="L1205"></span> <span class="line" id="L1206"><span class="tok-kw">fn</span> <span class="tok-fn">testRelativePosix</span>(from: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, to: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, expected_output: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L1207"> <span class="tok-kw">const</span> result = <span class="tok-kw">try</span> relativePosix(testing.allocator, from, to);</span> <span class="line" id="L1208"> <span class="tok-kw">defer</span> testing.allocator.free(result);</span> <span class="line" id="L1209"> <span class="tok-kw">try</span> testing.expectEqualStrings(expected_output, result);</span> <span class="line" id="L1210">}</span> <span class="line" id="L1211"></span> <span class="line" id="L1212"><span class="tok-kw">fn</span> <span class="tok-fn">testRelativeWindows</span>(from: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, to: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, expected_output: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L1213"> <span class="tok-kw">const</span> result = <span class="tok-kw">try</span> relativeWindows(testing.allocator, from, to);</span> <span class="line" id="L1214"> <span class="tok-kw">defer</span> testing.allocator.free(result);</span> <span class="line" id="L1215"> <span class="tok-kw">try</span> testing.expectEqualStrings(expected_output, result);</span> <span class="line" id="L1216">}</span> <span class="line" id="L1217"></span> <span class="line" id="L1218"><span class="tok-comment">/// Searches for a file extension separated by a `.` and returns the string after that `.`.</span></span> <span class="line" id="L1219"><span class="tok-comment">/// Files that end or start with `.` and have no other `.` in their name</span></span> <span class="line" id="L1220"><span class="tok-comment">/// are considered to have no extension, in which case this returns "".</span></span> <span class="line" id="L1221"><span class="tok-comment">/// Examples:</span></span> <span class="line" id="L1222"><span class="tok-comment">/// - `"main.zig"` ⇒ `".zig"`</span></span> <span class="line" id="L1223"><span class="tok-comment">/// - `"src/main.zig"` ⇒ `".zig"`</span></span> <span class="line" id="L1224"><span class="tok-comment">/// - `".gitignore"` ⇒ `""`</span></span> <span class="line" id="L1225"><span class="tok-comment">/// - `".image.png"` ⇒ `".png"`</span></span> <span class="line" id="L1226"><span class="tok-comment">/// - `"keep."` ⇒ `"."`</span></span> <span class="line" id="L1227"><span class="tok-comment">/// - `"src.keep.me"` ⇒ `".me"`</span></span> <span class="line" id="L1228"><span class="tok-comment">/// - `"/src/keep.me"` ⇒ `".me"`</span></span> <span class="line" id="L1229"><span class="tok-comment">/// - `"/src/keep.me/"` ⇒ `".me"`</span></span> <span class="line" id="L1230"><span class="tok-comment">/// The returned slice is guaranteed to have its pointer within the start and end</span></span> <span class="line" id="L1231"><span class="tok-comment">/// pointer address range of `path`, even if it is length zero.</span></span> <span class="line" id="L1232"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">extension</span>(path: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) []<span class="tok-kw">const</span> <span class="tok-type">u8</span> {</span> <span class="line" id="L1233"> <span class="tok-kw">const</span> filename = basename(path);</span> <span class="line" id="L1234"> <span class="tok-kw">const</span> index = mem.lastIndexOfScalar(<span class="tok-type">u8</span>, filename, <span class="tok-str">'.'</span>) <span class="tok-kw">orelse</span> <span class="tok-kw">return</span> path[path.len..];</span> <span class="line" id="L1235"> <span class="tok-kw">if</span> (index == <span class="tok-number">0</span>) <span class="tok-kw">return</span> path[path.len..];</span> <span class="line" id="L1236"> <span class="tok-kw">return</span> filename[index..];</span> <span class="line" id="L1237">}</span> <span class="line" id="L1238"></span> <span class="line" id="L1239"><span class="tok-kw">fn</span> <span class="tok-fn">testExtension</span>(path: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, expected: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L1240"> <span class="tok-kw">try</span> testing.expectEqualStrings(expected, extension(path));</span> <span class="line" id="L1241">}</span> <span class="line" id="L1242"></span> <span class="line" id="L1243"><span class="tok-kw">test</span> <span class="tok-str">"extension"</span> {</span> <span class="line" id="L1244"> <span class="tok-kw">try</span> testExtension(<span class="tok-str">""</span>, <span class="tok-str">""</span>);</span> <span class="line" id="L1245"> <span class="tok-kw">try</span> testExtension(<span class="tok-str">"."</span>, <span class="tok-str">""</span>);</span> <span class="line" id="L1246"> <span class="tok-kw">try</span> testExtension(<span class="tok-str">"a."</span>, <span class="tok-str">"."</span>);</span> <span class="line" id="L1247"> <span class="tok-kw">try</span> testExtension(<span class="tok-str">"abc."</span>, <span class="tok-str">"."</span>);</span> <span class="line" id="L1248"> <span class="tok-kw">try</span> testExtension(<span class="tok-str">".a"</span>, <span class="tok-str">""</span>);</span> <span class="line" id="L1249"> <span class="tok-kw">try</span> testExtension(<span class="tok-str">".file"</span>, <span class="tok-str">""</span>);</span> <span class="line" id="L1250"> <span class="tok-kw">try</span> testExtension(<span class="tok-str">".gitignore"</span>, <span class="tok-str">""</span>);</span> <span class="line" id="L1251"> <span class="tok-kw">try</span> testExtension(<span class="tok-str">".image.png"</span>, <span class="tok-str">".png"</span>);</span> <span class="line" id="L1252"> <span class="tok-kw">try</span> testExtension(<span class="tok-str">"file.ext"</span>, <span class="tok-str">".ext"</span>);</span> <span class="line" id="L1253"> <span class="tok-kw">try</span> testExtension(<span class="tok-str">"file.ext."</span>, <span class="tok-str">"."</span>);</span> <span class="line" id="L1254"> <span class="tok-kw">try</span> testExtension(<span class="tok-str">"very-long-file.bruh"</span>, <span class="tok-str">".bruh"</span>);</span> <span class="line" id="L1255"> <span class="tok-kw">try</span> testExtension(<span class="tok-str">"a.b.c"</span>, <span class="tok-str">".c"</span>);</span> <span class="line" id="L1256"> <span class="tok-kw">try</span> testExtension(<span class="tok-str">"a.b.c/"</span>, <span class="tok-str">".c"</span>);</span> <span class="line" id="L1257"></span> <span class="line" id="L1258"> <span class="tok-kw">try</span> testExtension(<span class="tok-str">"/"</span>, <span class="tok-str">""</span>);</span> <span class="line" id="L1259"> <span class="tok-kw">try</span> testExtension(<span class="tok-str">"/."</span>, <span class="tok-str">""</span>);</span> <span class="line" id="L1260"> <span class="tok-kw">try</span> testExtension(<span class="tok-str">"/a."</span>, <span class="tok-str">"."</span>);</span> <span class="line" id="L1261"> <span class="tok-kw">try</span> testExtension(<span class="tok-str">"/abc."</span>, <span class="tok-str">"."</span>);</span> <span class="line" id="L1262"> <span class="tok-kw">try</span> testExtension(<span class="tok-str">"/.a"</span>, <span class="tok-str">""</span>);</span> <span class="line" id="L1263"> <span class="tok-kw">try</span> testExtension(<span class="tok-str">"/.file"</span>, <span class="tok-str">""</span>);</span> <span class="line" id="L1264"> <span class="tok-kw">try</span> testExtension(<span class="tok-str">"/.gitignore"</span>, <span class="tok-str">""</span>);</span> <span class="line" id="L1265"> <span class="tok-kw">try</span> testExtension(<span class="tok-str">"/file.ext"</span>, <span class="tok-str">".ext"</span>);</span> <span class="line" id="L1266"> <span class="tok-kw">try</span> testExtension(<span class="tok-str">"/file.ext."</span>, <span class="tok-str">"."</span>);</span> <span class="line" id="L1267"> <span class="tok-kw">try</span> testExtension(<span class="tok-str">"/very-long-file.bruh"</span>, <span class="tok-str">".bruh"</span>);</span> <span class="line" id="L1268"> <span class="tok-kw">try</span> testExtension(<span class="tok-str">"/a.b.c"</span>, <span class="tok-str">".c"</span>);</span> <span class="line" id="L1269"> <span class="tok-kw">try</span> testExtension(<span class="tok-str">"/a.b.c/"</span>, <span class="tok-str">".c"</span>);</span> <span class="line" id="L1270"></span> <span class="line" id="L1271"> <span class="tok-kw">try</span> testExtension(<span class="tok-str">"/foo/bar/bam/"</span>, <span class="tok-str">""</span>);</span> <span class="line" id="L1272"> <span class="tok-kw">try</span> testExtension(<span class="tok-str">"/foo/bar/bam/."</span>, <span class="tok-str">""</span>);</span> <span class="line" id="L1273"> <span class="tok-kw">try</span> testExtension(<span class="tok-str">"/foo/bar/bam/a."</span>, <span class="tok-str">"."</span>);</span> <span class="line" id="L1274"> <span class="tok-kw">try</span> testExtension(<span class="tok-str">"/foo/bar/bam/abc."</span>, <span class="tok-str">"."</span>);</span> <span class="line" id="L1275"> <span class="tok-kw">try</span> testExtension(<span class="tok-str">"/foo/bar/bam/.a"</span>, <span class="tok-str">""</span>);</span> <span class="line" id="L1276"> <span class="tok-kw">try</span> testExtension(<span class="tok-str">"/foo/bar/bam/.file"</span>, <span class="tok-str">""</span>);</span> <span class="line" id="L1277"> <span class="tok-kw">try</span> testExtension(<span class="tok-str">"/foo/bar/bam/.gitignore"</span>, <span class="tok-str">""</span>);</span> <span class="line" id="L1278"> <span class="tok-kw">try</span> testExtension(<span class="tok-str">"/foo/bar/bam/file.ext"</span>, <span class="tok-str">".ext"</span>);</span> <span class="line" id="L1279"> <span class="tok-kw">try</span> testExtension(<span class="tok-str">"/foo/bar/bam/file.ext."</span>, <span class="tok-str">"."</span>);</span> <span class="line" id="L1280"> <span class="tok-kw">try</span> testExtension(<span class="tok-str">"/foo/bar/bam/very-long-file.bruh"</span>, <span class="tok-str">".bruh"</span>);</span> <span class="line" id="L1281"> <span class="tok-kw">try</span> testExtension(<span class="tok-str">"/foo/bar/bam/a.b.c"</span>, <span class="tok-str">".c"</span>);</span> <span class="line" id="L1282"> <span class="tok-kw">try</span> testExtension(<span class="tok-str">"/foo/bar/bam/a.b.c/"</span>, <span class="tok-str">".c"</span>);</span> <span class="line" id="L1283">}</span> <span class="line" id="L1284"></span> <span class="line" id="L1285"><span class="tok-comment">/// Returns the last component of this path without its extension (if any):</span></span> <span class="line" id="L1286"><span class="tok-comment">/// - "hello/world/lib.tar.gz" ⇒ "lib.tar"</span></span> <span class="line" id="L1287"><span class="tok-comment">/// - "hello/world/lib.tar" ⇒ "lib"</span></span> <span class="line" id="L1288"><span class="tok-comment">/// - "hello/world/lib" ⇒ "lib"</span></span> <span class="line" id="L1289"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">stem</span>(path: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) []<span class="tok-kw">const</span> <span class="tok-type">u8</span> {</span> <span class="line" id="L1290"> <span class="tok-kw">const</span> filename = basename(path);</span> <span class="line" id="L1291"> <span class="tok-kw">const</span> index = mem.lastIndexOfScalar(<span class="tok-type">u8</span>, filename, <span class="tok-str">'.'</span>) <span class="tok-kw">orelse</span> <span class="tok-kw">return</span> filename[<span class="tok-number">0</span>..];</span> <span class="line" id="L1292"> <span class="tok-kw">if</span> (index == <span class="tok-number">0</span>) <span class="tok-kw">return</span> path;</span> <span class="line" id="L1293"> <span class="tok-kw">return</span> filename[<span class="tok-number">0</span>..index];</span> <span class="line" id="L1294">}</span> <span class="line" id="L1295"></span> <span class="line" id="L1296"><span class="tok-kw">fn</span> <span class="tok-fn">testStem</span>(path: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>, expected: []<span class="tok-kw">const</span> <span class="tok-type">u8</span>) !<span class="tok-type">void</span> {</span> <span class="line" id="L1297"> <span class="tok-kw">try</span> testing.expectEqualStrings(expected, stem(path));</span> <span class="line" id="L1298">}</span> <span class="line" id="L1299"></span> <span class="line" id="L1300"><span class="tok-kw">test</span> <span class="tok-str">"stem"</span> {</span> <span class="line" id="L1301"> <span class="tok-kw">try</span> testStem(<span class="tok-str">"hello/world/lib.tar.gz"</span>, <span class="tok-str">"lib.tar"</span>);</span> <span class="line" id="L1302"> <span class="tok-kw">try</span> testStem(<span class="tok-str">"hello/world/lib.tar"</span>, <span class="tok-str">"lib"</span>);</span> <span class="line" id="L1303"> <span class="tok-kw">try</span> testStem(<span class="tok-str">"hello/world/lib"</span>, <span class="tok-str">"lib"</span>);</span> <span class="line" id="L1304"> <span class="tok-kw">try</span> testStem(<span class="tok-str">"hello/lib/"</span>, <span class="tok-str">"lib"</span>);</span> <span class="line" id="L1305"> <span class="tok-kw">try</span> testStem(<span class="tok-str">"hello..."</span>, <span class="tok-str">"hello.."</span>);</span> <span class="line" id="L1306"> <span class="tok-kw">try</span> testStem(<span class="tok-str">"hello."</span>, <span class="tok-str">"hello"</span>);</span> <span class="line" id="L1307"> <span class="tok-kw">try</span> testStem(<span class="tok-str">"/hello."</span>, <span class="tok-str">"hello"</span>);</span> <span class="line" id="L1308"> <span class="tok-kw">try</span> testStem(<span class="tok-str">".gitignore"</span>, <span class="tok-str">".gitignore"</span>);</span> <span class="line" id="L1309"> <span class="tok-kw">try</span> testStem(<span class="tok-str">".image.png"</span>, <span class="tok-str">".image"</span>);</span> <span class="line" id="L1310"> <span class="tok-kw">try</span> testStem(<span class="tok-str">"file.ext"</span>, <span class="tok-str">"file"</span>);</span> <span class="line" id="L1311"> <span class="tok-kw">try</span> testStem(<span class="tok-str">"file.ext."</span>, <span class="tok-str">"file.ext"</span>);</span> <span class="line" id="L1312"> <span class="tok-kw">try</span> testStem(<span class="tok-str">"a.b.c"</span>, <span class="tok-str">"a.b"</span>);</span> <span class="line" id="L1313"> <span class="tok-kw">try</span> testStem(<span class="tok-str">"a.b.c/"</span>, <span class="tok-str">"a.b"</span>);</span> <span class="line" id="L1314"> <span class="tok-kw">try</span> testStem(<span class="tok-str">".a"</span>, <span class="tok-str">".a"</span>);</span> <span class="line" id="L1315"> <span class="tok-kw">try</span> testStem(<span class="tok-str">"///"</span>, <span class="tok-str">""</span>);</span> <span class="line" id="L1316"> <span class="tok-kw">try</span> testStem(<span class="tok-str">".."</span>, <span class="tok-str">"."</span>);</span> <span class="line" id="L1317"> <span class="tok-kw">try</span> testStem(<span class="tok-str">"."</span>, <span class="tok-str">"."</span>);</span> <span class="line" id="L1318"> <span class="tok-kw">try</span> testStem(<span class="tok-str">" "</span>, <span class="tok-str">" "</span>);</span> <span class="line" id="L1319"> <span class="tok-kw">try</span> testStem(<span class="tok-str">""</span>, <span class="tok-str">""</span>);</span> <span class="line" id="L1320">}</span> <span class="line" id="L1321"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/valgrind/callgrind.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>valgrind/callgrind.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"../std.zig"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> valgrind = std.valgrind;</span> <span class="line" id="L3"></span> <span class="line" id="L4"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> CallgrindClientRequest = <span class="tok-kw">enum</span>(<span class="tok-type">usize</span>) {</span> <span class="line" id="L5"> DumpStats = valgrind.ToolBase(<span class="tok-str">"CT"</span>.),</span> <span class="line" id="L6"> ZeroStats,</span> <span class="line" id="L7"> ToggleCollect,</span> <span class="line" id="L8"> DumpStatsAt,</span> <span class="line" id="L9"> StartInstrumentation,</span> <span class="line" id="L10"> StopInstrumentation,</span> <span class="line" id="L11">};</span> <span class="line" id="L12"></span> <span class="line" id="L13"><span class="tok-kw">fn</span> <span class="tok-fn">doCallgrindClientRequestExpr</span>(default: <span class="tok-type">usize</span>, request: CallgrindClientRequest, a1: <span class="tok-type">usize</span>, a2: <span class="tok-type">usize</span>, a3: <span class="tok-type">usize</span>, a4: <span class="tok-type">usize</span>, a5: <span class="tok-type">usize</span>) <span class="tok-type">usize</span> {</span> <span class="line" id="L14"> <span class="tok-kw">return</span> valgrind.doClientRequest(default, <span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(<span class="tok-builtin">@intFromEnum</span>(request))), a1, a2, a3, a4, a5);</span> <span class="line" id="L15">}</span> <span class="line" id="L16"></span> <span class="line" id="L17"><span class="tok-kw">fn</span> <span class="tok-fn">doCallgrindClientRequestStmt</span>(request: CallgrindClientRequest, a1: <span class="tok-type">usize</span>, a2: <span class="tok-type">usize</span>, a3: <span class="tok-type">usize</span>, a4: <span class="tok-type">usize</span>, a5: <span class="tok-type">usize</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L18"> _ = doCallgrindClientRequestExpr(<span class="tok-number">0</span>, request, a1, a2, a3, a4, a5);</span> <span class="line" id="L19">}</span> <span class="line" id="L20"></span> <span class="line" id="L21"><span class="tok-comment">/// Dump current state of cost centers, and zero them afterwards</span></span> <span class="line" id="L22"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">dumpStats</span>() <span class="tok-type">void</span> {</span> <span class="line" id="L23"> doCallgrindClientRequestStmt(.DumpStats, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>);</span> <span class="line" id="L24">}</span> <span class="line" id="L25"></span> <span class="line" id="L26"><span class="tok-comment">/// Dump current state of cost centers, and zero them afterwards.</span></span> <span class="line" id="L27"><span class="tok-comment">/// The argument is appended to a string stating the reason which triggered</span></span> <span class="line" id="L28"><span class="tok-comment">/// the dump. This string is written as a description field into the</span></span> <span class="line" id="L29"><span class="tok-comment">/// profile data dump.</span></span> <span class="line" id="L30"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">dumpStatsAt</span>(pos_str: []<span class="tok-type">u8</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L31"> doCallgrindClientRequestStmt(.DumpStatsAt, <span class="tok-builtin">@intFromPtr</span>(pos_str), <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>);</span> <span class="line" id="L32">}</span> <span class="line" id="L33"></span> <span class="line" id="L34"><span class="tok-comment">/// Zero cost centers</span></span> <span class="line" id="L35"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">zeroStats</span>() <span class="tok-type">void</span> {</span> <span class="line" id="L36"> doCallgrindClientRequestStmt(.ZeroStats, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>);</span> <span class="line" id="L37">}</span> <span class="line" id="L38"></span> <span class="line" id="L39"><span class="tok-comment">/// Toggles collection state.</span></span> <span class="line" id="L40"><span class="tok-comment">/// The collection state specifies whether the happening of events</span></span> <span class="line" id="L41"><span class="tok-comment">/// should be noted or if they are to be ignored. Events are noted</span></span> <span class="line" id="L42"><span class="tok-comment">/// by increment of counters in a cost center</span></span> <span class="line" id="L43"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">toggleCollect</span>() <span class="tok-type">void</span> {</span> <span class="line" id="L44"> doCallgrindClientRequestStmt(.ToggleCollect, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>);</span> <span class="line" id="L45">}</span> <span class="line" id="L46"></span> <span class="line" id="L47"><span class="tok-comment">/// Start full callgrind instrumentation if not already switched on.</span></span> <span class="line" id="L48"><span class="tok-comment">/// When cache simulation is done, it will flush the simulated cache;</span></span> <span class="line" id="L49"><span class="tok-comment">/// this will lead to an artificial cache warmup phase afterwards with</span></span> <span class="line" id="L50"><span class="tok-comment">/// cache misses which would not have happened in reality.</span></span> <span class="line" id="L51"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">startInstrumentation</span>() <span class="tok-type">void</span> {</span> <span class="line" id="L52"> doCallgrindClientRequestStmt(.StartInstrumentation, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>);</span> <span class="line" id="L53">}</span> <span class="line" id="L54"></span> <span class="line" id="L55"><span class="tok-comment">/// Stop full callgrind instrumentation if not already switched off.</span></span> <span class="line" id="L56"><span class="tok-comment">/// This flushes Valgrinds translation cache, and does no additional</span></span> <span class="line" id="L57"><span class="tok-comment">/// instrumentation afterwards, which effectivly will run at the same</span></span> <span class="line" id="L58"><span class="tok-comment">/// speed as the "none" tool (ie. at minimal slowdown).</span></span> <span class="line" id="L59"><span class="tok-comment">/// Use this to bypass Callgrind aggregation for uninteresting code parts.</span></span> <span class="line" id="L60"><span class="tok-comment">/// To start Callgrind in this mode to ignore the setup phase, use</span></span> <span class="line" id="L61"><span class="tok-comment">/// the option "--instr-atstart=no".</span></span> <span class="line" id="L62"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">stopInstrumentation</span>() <span class="tok-type">void</span> {</span> <span class="line" id="L63"> doCallgrindClientRequestStmt(.StopInstrumentation, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>);</span> <span class="line" id="L64">}</span> <span class="line" id="L65"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/valgrind/memcheck.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>valgrind/memcheck.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"../std.zig"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> testing = std.testing;</span> <span class="line" id="L3"><span class="tok-kw">const</span> valgrind = std.valgrind;</span> <span class="line" id="L4"></span> <span class="line" id="L5"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> MemCheckClientRequest = <span class="tok-kw">enum</span>(<span class="tok-type">usize</span>) {</span> <span class="line" id="L6"> MakeMemNoAccess = valgrind.ToolBase(<span class="tok-str">"MC"</span>.),</span> <span class="line" id="L7"> MakeMemUndefined,</span> <span class="line" id="L8"> MakeMemDefined,</span> <span class="line" id="L9"> Discard,</span> <span class="line" id="L10"> CheckMemIsAddressable,</span> <span class="line" id="L11"> CheckMemIsDefined,</span> <span class="line" id="L12"> DoLeakCheck,</span> <span class="line" id="L13"> CountLeaks,</span> <span class="line" id="L14"> GetVbits,</span> <span class="line" id="L15"> SetVbits,</span> <span class="line" id="L16"> CreateBlock,</span> <span class="line" id="L17"> MakeMemDefinedIfAddressable,</span> <span class="line" id="L18"> CountLeakBlocks,</span> <span class="line" id="L19"> EnableAddrErrorReportingInRange,</span> <span class="line" id="L20"> DisableAddrErrorReportingInRange,</span> <span class="line" id="L21">};</span> <span class="line" id="L22"></span> <span class="line" id="L23"><span class="tok-kw">fn</span> <span class="tok-fn">doMemCheckClientRequestExpr</span>(default: <span class="tok-type">usize</span>, request: MemCheckClientRequest, a1: <span class="tok-type">usize</span>, a2: <span class="tok-type">usize</span>, a3: <span class="tok-type">usize</span>, a4: <span class="tok-type">usize</span>, a5: <span class="tok-type">usize</span>) <span class="tok-type">usize</span> {</span> <span class="line" id="L24"> <span class="tok-kw">return</span> valgrind.doClientRequest(default, <span class="tok-builtin">@as</span>(<span class="tok-type">usize</span>, <span class="tok-builtin">@intCast</span>(<span class="tok-builtin">@intFromEnum</span>(request))), a1, a2, a3, a4, a5);</span> <span class="line" id="L25">}</span> <span class="line" id="L26"></span> <span class="line" id="L27"><span class="tok-kw">fn</span> <span class="tok-fn">doMemCheckClientRequestStmt</span>(request: MemCheckClientRequest, a1: <span class="tok-type">usize</span>, a2: <span class="tok-type">usize</span>, a3: <span class="tok-type">usize</span>, a4: <span class="tok-type">usize</span>, a5: <span class="tok-type">usize</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L28"> _ = doMemCheckClientRequestExpr(<span class="tok-number">0</span>, request, a1, a2, a3, a4, a5);</span> <span class="line" id="L29">}</span> <span class="line" id="L30"></span> <span class="line" id="L31"><span class="tok-comment">/// Mark memory at qzz.ptr as unaddressable for qzz.len bytes.</span></span> <span class="line" id="L32"><span class="tok-comment">/// This returns -1 when run on Valgrind and 0 otherwise.</span></span> <span class="line" id="L33"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">makeMemNoAccess</span>(qzz: []<span class="tok-type">u8</span>) <span class="tok-type">i1</span> {</span> <span class="line" id="L34"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">i1</span>, <span class="tok-builtin">@intCast</span>(doMemCheckClientRequestExpr(<span class="tok-number">0</span>, <span class="tok-comment">// default return</span> </span> <span class="line" id="L35"> .MakeMemNoAccess, <span class="tok-builtin">@intFromPtr</span>(qzz.ptr), qzz.len, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>)));</span> <span class="line" id="L36">}</span> <span class="line" id="L37"></span> <span class="line" id="L38"><span class="tok-comment">/// Similarly, mark memory at qzz.ptr as addressable but undefined</span></span> <span class="line" id="L39"><span class="tok-comment">/// for qzz.len bytes.</span></span> <span class="line" id="L40"><span class="tok-comment">/// This returns -1 when run on Valgrind and 0 otherwise.</span></span> <span class="line" id="L41"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">makeMemUndefined</span>(qzz: []<span class="tok-type">u8</span>) <span class="tok-type">i1</span> {</span> <span class="line" id="L42"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">i1</span>, <span class="tok-builtin">@intCast</span>(doMemCheckClientRequestExpr(<span class="tok-number">0</span>, <span class="tok-comment">// default return</span> </span> <span class="line" id="L43"> .MakeMemUndefined, <span class="tok-builtin">@intFromPtr</span>(qzz.ptr), qzz.len, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>)));</span> <span class="line" id="L44">}</span> <span class="line" id="L45"></span> <span class="line" id="L46"><span class="tok-comment">/// Similarly, mark memory at qzz.ptr as addressable and defined</span></span> <span class="line" id="L47"><span class="tok-comment">/// for qzz.len bytes.</span></span> <span class="line" id="L48"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">makeMemDefined</span>(qzz: []<span class="tok-type">u8</span>) <span class="tok-type">i1</span> {</span> <span class="line" id="L49"> <span class="tok-comment">// This returns -1 when run on Valgrind and 0 otherwise.</span> </span> <span class="line" id="L50"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">i1</span>, <span class="tok-builtin">@intCast</span>(doMemCheckClientRequestExpr(<span class="tok-number">0</span>, <span class="tok-comment">// default return</span> </span> <span class="line" id="L51"> .MakeMemDefined, <span class="tok-builtin">@intFromPtr</span>(qzz.ptr), qzz.len, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>)));</span> <span class="line" id="L52">}</span> <span class="line" id="L53"></span> <span class="line" id="L54"><span class="tok-comment">/// Similar to makeMemDefined except that addressability is</span></span> <span class="line" id="L55"><span class="tok-comment">/// not altered: bytes which are addressable are marked as defined,</span></span> <span class="line" id="L56"><span class="tok-comment">/// but those which are not addressable are left unchanged.</span></span> <span class="line" id="L57"><span class="tok-comment">/// This returns -1 when run on Valgrind and 0 otherwise.</span></span> <span class="line" id="L58"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">makeMemDefinedIfAddressable</span>(qzz: []<span class="tok-type">u8</span>) <span class="tok-type">i1</span> {</span> <span class="line" id="L59"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">i1</span>, <span class="tok-builtin">@intCast</span>(doMemCheckClientRequestExpr(<span class="tok-number">0</span>, <span class="tok-comment">// default return</span> </span> <span class="line" id="L60"> .MakeMemDefinedIfAddressable, <span class="tok-builtin">@intFromPtr</span>(qzz.ptr), qzz.len, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>)));</span> <span class="line" id="L61">}</span> <span class="line" id="L62"></span> <span class="line" id="L63"><span class="tok-comment">/// Create a block-description handle. The description is an ascii</span></span> <span class="line" id="L64"><span class="tok-comment">/// string which is included in any messages pertaining to addresses</span></span> <span class="line" id="L65"><span class="tok-comment">/// within the specified memory range. Has no other effect on the</span></span> <span class="line" id="L66"><span class="tok-comment">/// properties of the memory range.</span></span> <span class="line" id="L67"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">createBlock</span>(qzz: []<span class="tok-type">u8</span>, desc: []<span class="tok-type">u8</span>) <span class="tok-type">usize</span> {</span> <span class="line" id="L68"> <span class="tok-kw">return</span> doMemCheckClientRequestExpr(<span class="tok-number">0</span>, <span class="tok-comment">// default return</span> </span> <span class="line" id="L69"> .CreateBlock, <span class="tok-builtin">@intFromPtr</span>(qzz.ptr), qzz.len, <span class="tok-builtin">@intFromPtr</span>(desc), <span class="tok-number">0</span>, <span class="tok-number">0</span>);</span> <span class="line" id="L70">}</span> <span class="line" id="L71"></span> <span class="line" id="L72"><span class="tok-comment">/// Discard a block-description-handle. Returns 1 for an</span></span> <span class="line" id="L73"><span class="tok-comment">/// invalid handle, 0 for a valid handle.</span></span> <span class="line" id="L74"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">discard</span>(blkindex: <span class="tok-type">usize</span>) <span class="tok-type">bool</span> {</span> <span class="line" id="L75"> <span class="tok-kw">return</span> doMemCheckClientRequestExpr(<span class="tok-number">0</span>, <span class="tok-comment">// default return</span> </span> <span class="line" id="L76"> .Discard, <span class="tok-number">0</span>, blkindex, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>) != <span class="tok-number">0</span>;</span> <span class="line" id="L77">}</span> <span class="line" id="L78"></span> <span class="line" id="L79"><span class="tok-comment">/// Check that memory at qzz.ptr is addressable for qzz.len bytes.</span></span> <span class="line" id="L80"><span class="tok-comment">/// If suitable addressability is not established, Valgrind prints an</span></span> <span class="line" id="L81"><span class="tok-comment">/// error message and returns the address of the first offending byte.</span></span> <span class="line" id="L82"><span class="tok-comment">/// Otherwise it returns zero.</span></span> <span class="line" id="L83"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">checkMemIsAddressable</span>(qzz: []<span class="tok-type">u8</span>) <span class="tok-type">usize</span> {</span> <span class="line" id="L84"> <span class="tok-kw">return</span> doMemCheckClientRequestExpr(<span class="tok-number">0</span>, .CheckMemIsAddressable, <span class="tok-builtin">@intFromPtr</span>(qzz.ptr), qzz.len, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>);</span> <span class="line" id="L85">}</span> <span class="line" id="L86"></span> <span class="line" id="L87"><span class="tok-comment">/// Check that memory at qzz.ptr is addressable and defined for</span></span> <span class="line" id="L88"><span class="tok-comment">/// qzz.len bytes. If suitable addressability and definedness are not</span></span> <span class="line" id="L89"><span class="tok-comment">/// established, Valgrind prints an error message and returns the</span></span> <span class="line" id="L90"><span class="tok-comment">/// address of the first offending byte. Otherwise it returns zero.</span></span> <span class="line" id="L91"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">checkMemIsDefined</span>(qzz: []<span class="tok-type">u8</span>) <span class="tok-type">usize</span> {</span> <span class="line" id="L92"> <span class="tok-kw">return</span> doMemCheckClientRequestExpr(<span class="tok-number">0</span>, .CheckMemIsDefined, <span class="tok-builtin">@intFromPtr</span>(qzz.ptr), qzz.len, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>);</span> <span class="line" id="L93">}</span> <span class="line" id="L94"></span> <span class="line" id="L95"><span class="tok-comment">/// Do a full memory leak check (like --leak-check=full) mid-execution.</span></span> <span class="line" id="L96"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">doLeakCheck</span>() <span class="tok-type">void</span> {</span> <span class="line" id="L97"> doMemCheckClientRequestStmt(.DO_LEAK_CHECK, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>);</span> <span class="line" id="L98">}</span> <span class="line" id="L99"></span> <span class="line" id="L100"><span class="tok-comment">/// Same as doLeakCheck() but only showing the entries for</span></span> <span class="line" id="L101"><span class="tok-comment">/// which there was an increase in leaked bytes or leaked nr of blocks</span></span> <span class="line" id="L102"><span class="tok-comment">/// since the previous leak search.</span></span> <span class="line" id="L103"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">doAddedLeakCheck</span>() <span class="tok-type">void</span> {</span> <span class="line" id="L104"> doMemCheckClientRequestStmt(.DO_LEAK_CHECK, <span class="tok-number">0</span>, <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>);</span> <span class="line" id="L105">}</span> <span class="line" id="L106"></span> <span class="line" id="L107"><span class="tok-comment">/// Same as doAddedLeakCheck() but showing entries with</span></span> <span class="line" id="L108"><span class="tok-comment">/// increased or decreased leaked bytes/blocks since previous leak</span></span> <span class="line" id="L109"><span class="tok-comment">/// search.</span></span> <span class="line" id="L110"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">doChangedLeakCheck</span>() <span class="tok-type">void</span> {</span> <span class="line" id="L111"> doMemCheckClientRequestStmt(.DO_LEAK_CHECK, <span class="tok-number">0</span>, <span class="tok-number">2</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>);</span> <span class="line" id="L112">}</span> <span class="line" id="L113"></span> <span class="line" id="L114"><span class="tok-comment">/// Do a summary memory leak check (like --leak-check=summary) mid-execution.</span></span> <span class="line" id="L115"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">doQuickLeakCheck</span>() <span class="tok-type">void</span> {</span> <span class="line" id="L116"> doMemCheckClientRequestStmt(.DO_LEAK_CHECK, <span class="tok-number">1</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>);</span> <span class="line" id="L117">}</span> <span class="line" id="L118"></span> <span class="line" id="L119"><span class="tok-comment">/// Return number of leaked, dubious, reachable and suppressed bytes found by</span></span> <span class="line" id="L120"><span class="tok-comment">/// all previous leak checks.</span></span> <span class="line" id="L121"><span class="tok-kw">const</span> CountResult = <span class="tok-kw">struct</span> {</span> <span class="line" id="L122"> leaked: <span class="tok-type">usize</span>,</span> <span class="line" id="L123"> dubious: <span class="tok-type">usize</span>,</span> <span class="line" id="L124"> reachable: <span class="tok-type">usize</span>,</span> <span class="line" id="L125"> suppressed: <span class="tok-type">usize</span>,</span> <span class="line" id="L126">};</span> <span class="line" id="L127"></span> <span class="line" id="L128"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">countLeaks</span>() CountResult {</span> <span class="line" id="L129"> <span class="tok-kw">var</span> res: CountResult = .{</span> <span class="line" id="L130"> .leaked = <span class="tok-number">0</span>,</span> <span class="line" id="L131"> .dubious = <span class="tok-number">0</span>,</span> <span class="line" id="L132"> .reachable = <span class="tok-number">0</span>,</span> <span class="line" id="L133"> .suppressed = <span class="tok-number">0</span>,</span> <span class="line" id="L134"> };</span> <span class="line" id="L135"> doMemCheckClientRequestStmt(</span> <span class="line" id="L136"> .CountLeaks,</span> <span class="line" id="L137"> <span class="tok-builtin">@intFromPtr</span>(&res.leaked),</span> <span class="line" id="L138"> <span class="tok-builtin">@intFromPtr</span>(&res.dubious),</span> <span class="line" id="L139"> <span class="tok-builtin">@intFromPtr</span>(&res.reachable),</span> <span class="line" id="L140"> <span class="tok-builtin">@intFromPtr</span>(&res.suppressed),</span> <span class="line" id="L141"> <span class="tok-number">0</span>,</span> <span class="line" id="L142"> );</span> <span class="line" id="L143"> <span class="tok-kw">return</span> res;</span> <span class="line" id="L144">}</span> <span class="line" id="L145"></span> <span class="line" id="L146"><span class="tok-kw">test</span> <span class="tok-str">"countLeaks"</span> {</span> <span class="line" id="L147"> <span class="tok-kw">try</span> testing.expectEqual(</span> <span class="line" id="L148"> <span class="tok-builtin">@as</span>(CountResult, .{</span> <span class="line" id="L149"> .leaked = <span class="tok-number">0</span>,</span> <span class="line" id="L150"> .dubious = <span class="tok-number">0</span>,</span> <span class="line" id="L151"> .reachable = <span class="tok-number">0</span>,</span> <span class="line" id="L152"> .suppressed = <span class="tok-number">0</span>,</span> <span class="line" id="L153"> }),</span> <span class="line" id="L154"> countLeaks(),</span> <span class="line" id="L155"> );</span> <span class="line" id="L156">}</span> <span class="line" id="L157"></span> <span class="line" id="L158"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">countLeakBlocks</span>() CountResult {</span> <span class="line" id="L159"> <span class="tok-kw">var</span> res: CountResult = .{</span> <span class="line" id="L160"> .leaked = <span class="tok-number">0</span>,</span> <span class="line" id="L161"> .dubious = <span class="tok-number">0</span>,</span> <span class="line" id="L162"> .reachable = <span class="tok-number">0</span>,</span> <span class="line" id="L163"> .suppressed = <span class="tok-number">0</span>,</span> <span class="line" id="L164"> };</span> <span class="line" id="L165"> doMemCheckClientRequestStmt(</span> <span class="line" id="L166"> .CountLeakBlocks,</span> <span class="line" id="L167"> <span class="tok-builtin">@intFromPtr</span>(&res.leaked),</span> <span class="line" id="L168"> <span class="tok-builtin">@intFromPtr</span>(&res.dubious),</span> <span class="line" id="L169"> <span class="tok-builtin">@intFromPtr</span>(&res.reachable),</span> <span class="line" id="L170"> <span class="tok-builtin">@intFromPtr</span>(&res.suppressed),</span> <span class="line" id="L171"> <span class="tok-number">0</span>,</span> <span class="line" id="L172"> );</span> <span class="line" id="L173"> <span class="tok-kw">return</span> res;</span> <span class="line" id="L174">}</span> <span class="line" id="L175"></span> <span class="line" id="L176"><span class="tok-kw">test</span> <span class="tok-str">"countLeakBlocks"</span> {</span> <span class="line" id="L177"> <span class="tok-kw">try</span> testing.expectEqual(</span> <span class="line" id="L178"> <span class="tok-builtin">@as</span>(CountResult, .{</span> <span class="line" id="L179"> .leaked = <span class="tok-number">0</span>,</span> <span class="line" id="L180"> .dubious = <span class="tok-number">0</span>,</span> <span class="line" id="L181"> .reachable = <span class="tok-number">0</span>,</span> <span class="line" id="L182"> .suppressed = <span class="tok-number">0</span>,</span> <span class="line" id="L183"> }),</span> <span class="line" id="L184"> countLeakBlocks(),</span> <span class="line" id="L185"> );</span> <span class="line" id="L186">}</span> <span class="line" id="L187"></span> <span class="line" id="L188"><span class="tok-comment">/// Get the validity data for addresses zza and copy it</span></span> <span class="line" id="L189"><span class="tok-comment">/// into the provided zzvbits array. Return values:</span></span> <span class="line" id="L190"><span class="tok-comment">/// 0 if not running on valgrind</span></span> <span class="line" id="L191"><span class="tok-comment">/// 1 success</span></span> <span class="line" id="L192"><span class="tok-comment">/// 2 [previously indicated unaligned arrays; these are now allowed]</span></span> <span class="line" id="L193"><span class="tok-comment">/// 3 if any parts of zzsrc/zzvbits are not addressable.</span></span> <span class="line" id="L194"><span class="tok-comment">/// The metadata is not copied in cases 0, 2 or 3 so it should be</span></span> <span class="line" id="L195"><span class="tok-comment">/// impossible to segfault your system by using this call.</span></span> <span class="line" id="L196"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">getVbits</span>(zza: []<span class="tok-type">u8</span>, zzvbits: []<span class="tok-type">u8</span>) <span class="tok-type">u2</span> {</span> <span class="line" id="L197"> std.debug.assert(zzvbits.len >= zza.len / <span class="tok-number">8</span>);</span> <span class="line" id="L198"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">u2</span>, <span class="tok-builtin">@intCast</span>(doMemCheckClientRequestExpr(<span class="tok-number">0</span>, .GetVbits, <span class="tok-builtin">@intFromPtr</span>(zza.ptr), <span class="tok-builtin">@intFromPtr</span>(zzvbits), zza.len, <span class="tok-number">0</span>, <span class="tok-number">0</span>)));</span> <span class="line" id="L199">}</span> <span class="line" id="L200"></span> <span class="line" id="L201"><span class="tok-comment">/// Set the validity data for addresses zza, copying it</span></span> <span class="line" id="L202"><span class="tok-comment">/// from the provided zzvbits array. Return values:</span></span> <span class="line" id="L203"><span class="tok-comment">/// 0 if not running on valgrind</span></span> <span class="line" id="L204"><span class="tok-comment">/// 1 success</span></span> <span class="line" id="L205"><span class="tok-comment">/// 2 [previously indicated unaligned arrays; these are now allowed]</span></span> <span class="line" id="L206"><span class="tok-comment">/// 3 if any parts of zza/zzvbits are not addressable.</span></span> <span class="line" id="L207"><span class="tok-comment">/// The metadata is not copied in cases 0, 2 or 3 so it should be</span></span> <span class="line" id="L208"><span class="tok-comment">/// impossible to segfault your system by using this call.</span></span> <span class="line" id="L209"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">setVbits</span>(zzvbits: []<span class="tok-type">u8</span>, zza: []<span class="tok-type">u8</span>) <span class="tok-type">u2</span> {</span> <span class="line" id="L210"> std.debug.assert(zzvbits.len >= zza.len / <span class="tok-number">8</span>);</span> <span class="line" id="L211"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">u2</span>, <span class="tok-builtin">@intCast</span>(doMemCheckClientRequestExpr(<span class="tok-number">0</span>, .SetVbits, <span class="tok-builtin">@intFromPtr</span>(zza.ptr), <span class="tok-builtin">@intFromPtr</span>(zzvbits), zza.len, <span class="tok-number">0</span>, <span class="tok-number">0</span>)));</span> <span class="line" id="L212">}</span> <span class="line" id="L213"></span> <span class="line" id="L214"><span class="tok-comment">/// Disable and re-enable reporting of addressing errors in the</span></span> <span class="line" id="L215"><span class="tok-comment">/// specified address range.</span></span> <span class="line" id="L216"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">disableAddrErrorReportingInRange</span>(qzz: []<span class="tok-type">u8</span>) <span class="tok-type">usize</span> {</span> <span class="line" id="L217"> <span class="tok-kw">return</span> doMemCheckClientRequestExpr(<span class="tok-number">0</span>, <span class="tok-comment">// default return</span> </span> <span class="line" id="L218"> .DisableAddrErrorReportingInRange, <span class="tok-builtin">@intFromPtr</span>(qzz.ptr), qzz.len, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>);</span> <span class="line" id="L219">}</span> <span class="line" id="L220"></span> <span class="line" id="L221"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">enableAddrErrorReportingInRange</span>(qzz: []<span class="tok-type">u8</span>) <span class="tok-type">usize</span> {</span> <span class="line" id="L222"> <span class="tok-kw">return</span> doMemCheckClientRequestExpr(<span class="tok-number">0</span>, <span class="tok-comment">// default return</span> </span> <span class="line" id="L223"> .EnableAddrErrorReportingInRange, <span class="tok-builtin">@intFromPtr</span>(qzz.ptr), qzz.len, <span class="tok-number">0</span>, <span class="tok-number">0</span>, <span class="tok-number">0</span>);</span> <span class="line" id="L224">}</span> <span class="line" id="L225"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/math/log2.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>math/log2.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"../std.zig"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> builtin = <span class="tok-builtin">@import</span>(<span class="tok-str">"builtin"</span>);</span> <span class="line" id="L3"><span class="tok-kw">const</span> math = std.math;</span> <span class="line" id="L4"><span class="tok-kw">const</span> expect = std.testing.expect;</span> <span class="line" id="L5"></span> <span class="line" id="L6"><span class="tok-comment">/// Returns the base-2 logarithm of x.</span></span> <span class="line" id="L7"><span class="tok-comment">///</span></span> <span class="line" id="L8"><span class="tok-comment">/// Special Cases:</span></span> <span class="line" id="L9"><span class="tok-comment">/// - log2(+inf) = +inf</span></span> <span class="line" id="L10"><span class="tok-comment">/// - log2(0) = -inf</span></span> <span class="line" id="L11"><span class="tok-comment">/// - log2(x) = nan if x < 0</span></span> <span class="line" id="L12"><span class="tok-comment">/// - log2(nan) = nan</span></span> <span class="line" id="L13"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">log2</span>(x: <span class="tok-kw">anytype</span>) <span class="tok-builtin">@TypeOf</span>(x) {</span> <span class="line" id="L14"> <span class="tok-kw">const</span> T = <span class="tok-builtin">@TypeOf</span>(x);</span> <span class="line" id="L15"> <span class="tok-kw">switch</span> (<span class="tok-builtin">@typeInfo</span>(T)) {</span> <span class="line" id="L16"> .ComptimeFloat => {</span> <span class="line" id="L17"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">comptime_float</span>, <span class="tok-builtin">@log2</span>(x));</span> <span class="line" id="L18"> },</span> <span class="line" id="L19"> .Float => <span class="tok-kw">return</span> <span class="tok-builtin">@log2</span>(x),</span> <span class="line" id="L20"> .ComptimeInt => <span class="tok-kw">comptime</span> {</span> <span class="line" id="L21"> <span class="tok-kw">var</span> x_shifted = x;</span> <span class="line" id="L22"> <span class="tok-comment">// First, calculate floorPowerOfTwo(x)</span> </span> <span class="line" id="L23"> <span class="tok-kw">var</span> shift_amt = <span class="tok-number">1</span>;</span> <span class="line" id="L24"> <span class="tok-kw">while</span> (x_shifted >> (shift_amt << <span class="tok-number">1</span>) != <span class="tok-number">0</span>) shift_amt <<= <span class="tok-number">1</span>;</span> <span class="line" id="L25"></span> <span class="line" id="L26"> <span class="tok-comment">// Answer is in the range [shift_amt, 2 * shift_amt - 1]</span> </span> <span class="line" id="L27"> <span class="tok-comment">// We can find it in O(log(N)) using binary search.</span> </span> <span class="line" id="L28"> <span class="tok-kw">var</span> result = <span class="tok-number">0</span>;</span> <span class="line" id="L29"> <span class="tok-kw">while</span> (shift_amt != <span class="tok-number">0</span>) : (shift_amt >>= <span class="tok-number">1</span>) {</span> <span class="line" id="L30"> <span class="tok-kw">if</span> (x_shifted >> shift_amt != <span class="tok-number">0</span>) {</span> <span class="line" id="L31"> x_shifted >>= shift_amt;</span> <span class="line" id="L32"> result += shift_amt;</span> <span class="line" id="L33"> }</span> <span class="line" id="L34"> }</span> <span class="line" id="L35"> <span class="tok-kw">return</span> result;</span> <span class="line" id="L36"> },</span> <span class="line" id="L37"> .Int => \|IntType\| <span class="tok-kw">switch</span> (IntType.signedness) {</span> <span class="line" id="L38"> .signed => <span class="tok-builtin">@compileError</span>(<span class="tok-str">"log2 not implemented for signed integers"</span>),</span> <span class="line" id="L39"> .unsigned => <span class="tok-kw">return</span> math.log2_int(T, x),</span> <span class="line" id="L40"> },</span> <span class="line" id="L41"> <span class="tok-kw">else</span> => <span class="tok-builtin">@compileError</span>(<span class="tok-str">"log2 not implemented for "</span> ++ <span class="tok-builtin">@typeName</span>(T)),</span> <span class="line" id="L42"> }</span> <span class="line" id="L43">}</span> <span class="line" id="L44"></span> <span class="line" id="L45"><span class="tok-kw">test</span> <span class="tok-str">"log2"</span> {</span> <span class="line" id="L46"> <span class="tok-comment">// https://github.com/ziglang/zig/issues/13703</span> </span> <span class="line" id="L47"> <span class="tok-kw">if</span> (builtin.cpu.arch == .aarch64 <span class="tok-kw">and</span> builtin.os.tag == .windows) <span class="tok-kw">return</span> <span class="tok-kw">error</span>.SkipZigTest;</span> <span class="line" id="L48"></span> <span class="line" id="L49"> <span class="tok-kw">try</span> expect(log2(<span class="tok-builtin">@as</span>(<span class="tok-type">f32</span>, <span class="tok-number">0.2</span>)) == <span class="tok-builtin">@log2</span>(<span class="tok-number">0.2</span>));</span> <span class="line" id="L50"> <span class="tok-kw">try</span> expect(log2(<span class="tok-builtin">@as</span>(<span class="tok-type">f64</span>, <span class="tok-number">0.2</span>)) == <span class="tok-builtin">@log2</span>(<span class="tok-number">0.2</span>));</span> <span class="line" id="L51"> <span class="tok-kw">comptime</span> {</span> <span class="line" id="L52"> <span class="tok-kw">try</span> expect(log2(<span class="tok-number">1</span>) == <span class="tok-number">0</span>);</span> <span class="line" id="L53"> <span class="tok-kw">try</span> expect(log2(<span class="tok-number">15</span>) == <span class="tok-number">3</span>);</span> <span class="line" id="L54"> <span class="tok-kw">try</span> expect(log2(<span class="tok-number">16</span>) == <span class="tok-number">4</span>);</span> <span class="line" id="L55"> <span class="tok-kw">try</span> expect(log2(<span class="tok-number">1</span> << <span class="tok-number">4073</span>) == <span class="tok-number">4073</span>);</span> <span class="line" id="L56"> }</span> <span class="line" id="L57">}</span> <span class="line" id="L58"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/math/complex.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>math/complex.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"../std.zig"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> testing = std.testing;</span> <span class="line" id="L3"><span class="tok-kw">const</span> math = std.math;</span> <span class="line" id="L4"></span> <span class="line" id="L5"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> abs = <span class="tok-builtin">@import</span>(<span class="tok-str">"complex/abs.zig"</span>).abs;</span> <span class="line" id="L6"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> acosh = <span class="tok-builtin">@import</span>(<span class="tok-str">"complex/acosh.zig"</span>).acosh;</span> <span class="line" id="L7"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> acos = <span class="tok-builtin">@import</span>(<span class="tok-str">"complex/acos.zig"</span>).acos;</span> <span class="line" id="L8"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> arg = <span class="tok-builtin">@import</span>(<span class="tok-str">"complex/arg.zig"</span>).arg;</span> <span class="line" id="L9"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> asinh = <span class="tok-builtin">@import</span>(<span class="tok-str">"complex/asinh.zig"</span>).asinh;</span> <span class="line" id="L10"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> asin = <span class="tok-builtin">@import</span>(<span class="tok-str">"complex/asin.zig"</span>).asin;</span> <span class="line" id="L11"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> atanh = <span class="tok-builtin">@import</span>(<span class="tok-str">"complex/atanh.zig"</span>).atanh;</span> <span class="line" id="L12"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> atan = <span class="tok-builtin">@import</span>(<span class="tok-str">"complex/atan.zig"</span>).atan;</span> <span class="line" id="L13"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> conj = <span class="tok-builtin">@import</span>(<span class="tok-str">"complex/conj.zig"</span>).conj;</span> <span class="line" id="L14"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> cosh = <span class="tok-builtin">@import</span>(<span class="tok-str">"complex/cosh.zig"</span>).cosh;</span> <span class="line" id="L15"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> cos = <span class="tok-builtin">@import</span>(<span class="tok-str">"complex/cos.zig"</span>).cos;</span> <span class="line" id="L16"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> exp = <span class="tok-builtin">@import</span>(<span class="tok-str">"complex/exp.zig"</span>).exp;</span> <span class="line" id="L17"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> log = <span class="tok-builtin">@import</span>(<span class="tok-str">"complex/log.zig"</span>).log;</span> <span class="line" id="L18"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> pow = <span class="tok-builtin">@import</span>(<span class="tok-str">"complex/pow.zig"</span>).pow;</span> <span class="line" id="L19"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> proj = <span class="tok-builtin">@import</span>(<span class="tok-str">"complex/proj.zig"</span>).proj;</span> <span class="line" id="L20"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> sinh = <span class="tok-builtin">@import</span>(<span class="tok-str">"complex/sinh.zig"</span>).sinh;</span> <span class="line" id="L21"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> sin = <span class="tok-builtin">@import</span>(<span class="tok-str">"complex/sin.zig"</span>).sin;</span> <span class="line" id="L22"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> sqrt = <span class="tok-builtin">@import</span>(<span class="tok-str">"complex/sqrt.zig"</span>).sqrt;</span> <span class="line" id="L23"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> tanh = <span class="tok-builtin">@import</span>(<span class="tok-str">"complex/tanh.zig"</span>).tanh;</span> <span class="line" id="L24"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> tan = <span class="tok-builtin">@import</span>(<span class="tok-str">"complex/tan.zig"</span>).tan;</span> <span class="line" id="L25"></span> <span class="line" id="L26"><span class="tok-comment">/// A complex number consisting of a real an imaginary part. T must be a floating-point value.</span></span> <span class="line" id="L27"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">Complex</span>(<span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L28"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L29"> <span class="tok-kw">const</span> Self = <span class="tok-builtin">@This</span>();</span> <span class="line" id="L30"></span> <span class="line" id="L31"> <span class="tok-comment">/// Real part.</span></span> <span class="line" id="L32"> re: T,</span> <span class="line" id="L33"></span> <span class="line" id="L34"> <span class="tok-comment">/// Imaginary part.</span></span> <span class="line" id="L35"> im: T,</span> <span class="line" id="L36"></span> <span class="line" id="L37"> <span class="tok-comment">/// Create a new Complex number from the given real and imaginary parts.</span></span> <span class="line" id="L38"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">init</span>(re: T, im: T) Self {</span> <span class="line" id="L39"> <span class="tok-kw">return</span> Self{</span> <span class="line" id="L40"> .re = re,</span> <span class="line" id="L41"> .im = im,</span> <span class="line" id="L42"> };</span> <span class="line" id="L43"> }</span> <span class="line" id="L44"></span> <span class="line" id="L45"> <span class="tok-comment">/// Returns the sum of two complex numbers.</span></span> <span class="line" id="L46"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">add</span>(self: Self, other: Self) Self {</span> <span class="line" id="L47"> <span class="tok-kw">return</span> Self{</span> <span class="line" id="L48"> .re = self.re + other.re,</span> <span class="line" id="L49"> .im = self.im + other.im,</span> <span class="line" id="L50"> };</span> <span class="line" id="L51"> }</span> <span class="line" id="L52"></span> <span class="line" id="L53"> <span class="tok-comment">/// Returns the subtraction of two complex numbers.</span></span> <span class="line" id="L54"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">sub</span>(self: Self, other: Self) Self {</span> <span class="line" id="L55"> <span class="tok-kw">return</span> Self{</span> <span class="line" id="L56"> .re = self.re - other.re,</span> <span class="line" id="L57"> .im = self.im - other.im,</span> <span class="line" id="L58"> };</span> <span class="line" id="L59"> }</span> <span class="line" id="L60"></span> <span class="line" id="L61"> <span class="tok-comment">/// Returns the product of two complex numbers.</span></span> <span class="line" id="L62"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">mul</span>(self: Self, other: Self) Self {</span> <span class="line" id="L63"> <span class="tok-kw">return</span> Self{</span> <span class="line" id="L64"> .re = self.re * other.re - self.im * other.im,</span> <span class="line" id="L65"> .im = self.im * other.re + self.re * other.im,</span> <span class="line" id="L66"> };</span> <span class="line" id="L67"> }</span> <span class="line" id="L68"></span> <span class="line" id="L69"> <span class="tok-comment">/// Returns the quotient of two complex numbers.</span></span> <span class="line" id="L70"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">div</span>(self: Self, other: Self) Self {</span> <span class="line" id="L71"> <span class="tok-kw">const</span> re_num = self.re * other.re + self.im * other.im;</span> <span class="line" id="L72"> <span class="tok-kw">const</span> im_num = self.im * other.re - self.re * other.im;</span> <span class="line" id="L73"> <span class="tok-kw">const</span> den = other.re * other.re + other.im * other.im;</span> <span class="line" id="L74"></span> <span class="line" id="L75"> <span class="tok-kw">return</span> Self{</span> <span class="line" id="L76"> .re = re_num / den,</span> <span class="line" id="L77"> .im = im_num / den,</span> <span class="line" id="L78"> };</span> <span class="line" id="L79"> }</span> <span class="line" id="L80"></span> <span class="line" id="L81"> <span class="tok-comment">/// Returns the complex conjugate of a number.</span></span> <span class="line" id="L82"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">conjugate</span>(self: Self) Self {</span> <span class="line" id="L83"> <span class="tok-kw">return</span> Self{</span> <span class="line" id="L84"> .re = self.re,</span> <span class="line" id="L85"> .im = -self.im,</span> <span class="line" id="L86"> };</span> <span class="line" id="L87"> }</span> <span class="line" id="L88"></span> <span class="line" id="L89"> <span class="tok-comment">/// Returns the negation of a complex number.</span></span> <span class="line" id="L90"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">neg</span>(self: Self) Self {</span> <span class="line" id="L91"> <span class="tok-kw">return</span> Self{</span> <span class="line" id="L92"> .re = -self.re,</span> <span class="line" id="L93"> .im = -self.im,</span> <span class="line" id="L94"> };</span> <span class="line" id="L95"> }</span> <span class="line" id="L96"></span> <span class="line" id="L97"> <span class="tok-comment">/// Returns the product of complex number and i=sqrt(-1)</span></span> <span class="line" id="L98"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">mulbyi</span>(self: Self) Self {</span> <span class="line" id="L99"> <span class="tok-kw">return</span> Self{</span> <span class="line" id="L100"> .re = -self.im,</span> <span class="line" id="L101"> .im = self.re,</span> <span class="line" id="L102"> };</span> <span class="line" id="L103"> }</span> <span class="line" id="L104"></span> <span class="line" id="L105"> <span class="tok-comment">/// Returns the reciprocal of a complex number.</span></span> <span class="line" id="L106"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">reciprocal</span>(self: Self) Self {</span> <span class="line" id="L107"> <span class="tok-kw">const</span> m = self.re * self.re + self.im * self.im;</span> <span class="line" id="L108"> <span class="tok-kw">return</span> Self{</span> <span class="line" id="L109"> .re = self.re / m,</span> <span class="line" id="L110"> .im = -self.im / m,</span> <span class="line" id="L111"> };</span> <span class="line" id="L112"> }</span> <span class="line" id="L113"></span> <span class="line" id="L114"> <span class="tok-comment">/// Returns the magnitude of a complex number.</span></span> <span class="line" id="L115"> <span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">magnitude</span>(self: Self) T {</span> <span class="line" id="L116"> <span class="tok-kw">return</span> <span class="tok-builtin">@sqrt</span>(self.re * self.re + self.im * self.im);</span> <span class="line" id="L117"> }</span> <span class="line" id="L118"> };</span> <span class="line" id="L119">}</span> <span class="line" id="L120"></span> <span class="line" id="L121"><span class="tok-kw">const</span> epsilon = <span class="tok-number">0.0001</span>;</span> <span class="line" id="L122"></span> <span class="line" id="L123"><span class="tok-kw">test</span> <span class="tok-str">"complex.add"</span> {</span> <span class="line" id="L124"> <span class="tok-kw">const</span> a = Complex(<span class="tok-type">f32</span>).init(<span class="tok-number">5</span>, <span class="tok-number">3</span>);</span> <span class="line" id="L125"> <span class="tok-kw">const</span> b = Complex(<span class="tok-type">f32</span>).init(<span class="tok-number">2</span>, <span class="tok-number">7</span>);</span> <span class="line" id="L126"> <span class="tok-kw">const</span> c = a.add(b);</span> <span class="line" id="L127"></span> <span class="line" id="L128"> <span class="tok-kw">try</span> testing.expect(c.re == <span class="tok-number">7</span> <span class="tok-kw">and</span> c.im == <span class="tok-number">10</span>);</span> <span class="line" id="L129">}</span> <span class="line" id="L130"></span> <span class="line" id="L131"><span class="tok-kw">test</span> <span class="tok-str">"complex.sub"</span> {</span> <span class="line" id="L132"> <span class="tok-kw">const</span> a = Complex(<span class="tok-type">f32</span>).init(<span class="tok-number">5</span>, <span class="tok-number">3</span>);</span> <span class="line" id="L133"> <span class="tok-kw">const</span> b = Complex(<span class="tok-type">f32</span>).init(<span class="tok-number">2</span>, <span class="tok-number">7</span>);</span> <span class="line" id="L134"> <span class="tok-kw">const</span> c = a.sub(b);</span> <span class="line" id="L135"></span> <span class="line" id="L136"> <span class="tok-kw">try</span> testing.expect(c.re == <span class="tok-number">3</span> <span class="tok-kw">and</span> c.im == -<span class="tok-number">4</span>);</span> <span class="line" id="L137">}</span> <span class="line" id="L138"></span> <span class="line" id="L139"><span class="tok-kw">test</span> <span class="tok-str">"complex.mul"</span> {</span> <span class="line" id="L140"> <span class="tok-kw">const</span> a = Complex(<span class="tok-type">f32</span>).init(<span class="tok-number">5</span>, <span class="tok-number">3</span>);</span> <span class="line" id="L141"> <span class="tok-kw">const</span> b = Complex(<span class="tok-type">f32</span>).init(<span class="tok-number">2</span>, <span class="tok-number">7</span>);</span> <span class="line" id="L142"> <span class="tok-kw">const</span> c = a.mul(b);</span> <span class="line" id="L143"></span> <span class="line" id="L144"> <span class="tok-kw">try</span> testing.expect(c.re == -<span class="tok-number">11</span> <span class="tok-kw">and</span> c.im == <span class="tok-number">41</span>);</span> <span class="line" id="L145">}</span> <span class="line" id="L146"></span> <span class="line" id="L147"><span class="tok-kw">test</span> <span class="tok-str">"complex.div"</span> {</span> <span class="line" id="L148"> <span class="tok-kw">const</span> a = Complex(<span class="tok-type">f32</span>).init(<span class="tok-number">5</span>, <span class="tok-number">3</span>);</span> <span class="line" id="L149"> <span class="tok-kw">const</span> b = Complex(<span class="tok-type">f32</span>).init(<span class="tok-number">2</span>, <span class="tok-number">7</span>);</span> <span class="line" id="L150"> <span class="tok-kw">const</span> c = a.div(b);</span> <span class="line" id="L151"></span> <span class="line" id="L152"> <span class="tok-kw">try</span> testing.expect(math.approxEqAbs(<span class="tok-type">f32</span>, c.re, <span class="tok-builtin">@as</span>(<span class="tok-type">f32</span>, <span class="tok-number">31</span>) / <span class="tok-number">53</span>, epsilon) <span class="tok-kw">and</span></span> <span class="line" id="L153"> math.approxEqAbs(<span class="tok-type">f32</span>, c.im, <span class="tok-builtin">@as</span>(<span class="tok-type">f32</span>, -<span class="tok-number">29</span>) / <span class="tok-number">53</span>, epsilon));</span> <span class="line" id="L154">}</span> <span class="line" id="L155"></span> <span class="line" id="L156"><span class="tok-kw">test</span> <span class="tok-str">"complex.conjugate"</span> {</span> <span class="line" id="L157"> <span class="tok-kw">const</span> a = Complex(<span class="tok-type">f32</span>).init(<span class="tok-number">5</span>, <span class="tok-number">3</span>);</span> <span class="line" id="L158"> <span class="tok-kw">const</span> c = a.conjugate();</span> <span class="line" id="L159"></span> <span class="line" id="L160"> <span class="tok-kw">try</span> testing.expect(c.re == <span class="tok-number">5</span> <span class="tok-kw">and</span> c.im == -<span class="tok-number">3</span>);</span> <span class="line" id="L161">}</span> <span class="line" id="L162"></span> <span class="line" id="L163"><span class="tok-kw">test</span> <span class="tok-str">"complex.neg"</span> {</span> <span class="line" id="L164"> <span class="tok-kw">const</span> a = Complex(<span class="tok-type">f32</span>).init(<span class="tok-number">5</span>, <span class="tok-number">3</span>);</span> <span class="line" id="L165"> <span class="tok-kw">const</span> c = a.neg();</span> <span class="line" id="L166"></span> <span class="line" id="L167"> <span class="tok-kw">try</span> testing.expect(c.re == -<span class="tok-number">5</span> <span class="tok-kw">and</span> c.im == -<span class="tok-number">3</span>);</span> <span class="line" id="L168">}</span> <span class="line" id="L169"></span> <span class="line" id="L170"><span class="tok-kw">test</span> <span class="tok-str">"complex.mulbyi"</span> {</span> <span class="line" id="L171"> <span class="tok-kw">const</span> a = Complex(<span class="tok-type">f32</span>).init(<span class="tok-number">5</span>, <span class="tok-number">3</span>);</span> <span class="line" id="L172"> <span class="tok-kw">const</span> c = a.mulbyi();</span> <span class="line" id="L173"></span> <span class="line" id="L174"> <span class="tok-kw">try</span> testing.expect(c.re == -<span class="tok-number">3</span> <span class="tok-kw">and</span> c.im == <span class="tok-number">5</span>);</span> <span class="line" id="L175">}</span> <span class="line" id="L176"></span> <span class="line" id="L177"><span class="tok-kw">test</span> <span class="tok-str">"complex.reciprocal"</span> {</span> <span class="line" id="L178"> <span class="tok-kw">const</span> a = Complex(<span class="tok-type">f32</span>).init(<span class="tok-number">5</span>, <span class="tok-number">3</span>);</span> <span class="line" id="L179"> <span class="tok-kw">const</span> c = a.reciprocal();</span> <span class="line" id="L180"></span> <span class="line" id="L181"> <span class="tok-kw">try</span> testing.expect(math.approxEqAbs(<span class="tok-type">f32</span>, c.re, <span class="tok-builtin">@as</span>(<span class="tok-type">f32</span>, <span class="tok-number">5</span>) / <span class="tok-number">34</span>, epsilon) <span class="tok-kw">and</span></span> <span class="line" id="L182"> math.approxEqAbs(<span class="tok-type">f32</span>, c.im, <span class="tok-builtin">@as</span>(<span class="tok-type">f32</span>, -<span class="tok-number">3</span>) / <span class="tok-number">34</span>, epsilon));</span> <span class="line" id="L183">}</span> <span class="line" id="L184"></span> <span class="line" id="L185"><span class="tok-kw">test</span> <span class="tok-str">"complex.magnitude"</span> {</span> <span class="line" id="L186"> <span class="tok-kw">const</span> a = Complex(<span class="tok-type">f32</span>).init(<span class="tok-number">5</span>, <span class="tok-number">3</span>);</span> <span class="line" id="L187"> <span class="tok-kw">const</span> c = a.magnitude();</span> <span class="line" id="L188"></span> <span class="line" id="L189"> <span class="tok-kw">try</span> testing.expect(math.approxEqAbs(<span class="tok-type">f32</span>, c, <span class="tok-number">5.83095</span>, epsilon));</span> <span class="line" id="L190">}</span> <span class="line" id="L191"></span> <span class="line" id="L192"><span class="tok-kw">test</span> {</span> <span class="line" id="L193"> _ = <span class="tok-builtin">@import</span>(<span class="tok-str">"complex/abs.zig"</span>);</span> <span class="line" id="L194"> _ = <span class="tok-builtin">@import</span>(<span class="tok-str">"complex/acosh.zig"</span>);</span> <span class="line" id="L195"> _ = <span class="tok-builtin">@import</span>(<span class="tok-str">"complex/acos.zig"</span>);</span> <span class="line" id="L196"> _ = <span class="tok-builtin">@import</span>(<span class="tok-str">"complex/arg.zig"</span>);</span> <span class="line" id="L197"> _ = <span class="tok-builtin">@import</span>(<span class="tok-str">"complex/asinh.zig"</span>);</span> <span class="line" id="L198"> _ = <span class="tok-builtin">@import</span>(<span class="tok-str">"complex/asin.zig"</span>);</span> <span class="line" id="L199"> _ = <span class="tok-builtin">@import</span>(<span class="tok-str">"complex/atanh.zig"</span>);</span> <span class="line" id="L200"> _ = <span class="tok-builtin">@import</span>(<span class="tok-str">"complex/atan.zig"</span>);</span> <span class="line" id="L201"> _ = <span class="tok-builtin">@import</span>(<span class="tok-str">"complex/conj.zig"</span>);</span> <span class="line" id="L202"> _ = <span class="tok-builtin">@import</span>(<span class="tok-str">"complex/cosh.zig"</span>);</span> <span class="line" id="L203"> _ = <span class="tok-builtin">@import</span>(<span class="tok-str">"complex/cos.zig"</span>);</span> <span class="line" id="L204"> _ = <span class="tok-builtin">@import</span>(<span class="tok-str">"complex/exp.zig"</span>);</span> <span class="line" id="L205"> _ = <span class="tok-builtin">@import</span>(<span class="tok-str">"complex/log.zig"</span>);</span> <span class="line" id="L206"> _ = <span class="tok-builtin">@import</span>(<span class="tok-str">"complex/pow.zig"</span>);</span> <span class="line" id="L207"> _ = <span class="tok-builtin">@import</span>(<span class="tok-str">"complex/proj.zig"</span>);</span> <span class="line" id="L208"> _ = <span class="tok-builtin">@import</span>(<span class="tok-str">"complex/sinh.zig"</span>);</span> <span class="line" id="L209"> _ = <span class="tok-builtin">@import</span>(<span class="tok-str">"complex/sin.zig"</span>);</span> <span class="line" id="L210"> _ = <span class="tok-builtin">@import</span>(<span class="tok-str">"complex/sqrt.zig"</span>);</span> <span class="line" id="L211"> _ = <span class="tok-builtin">@import</span>(<span class="tok-str">"complex/tanh.zig"</span>);</span> <span class="line" id="L212"> _ = <span class="tok-builtin">@import</span>(<span class="tok-str">"complex/tan.zig"</span>);</span> <span class="line" id="L213">}</span> <span class="line" id="L214"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/math/cosh.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>math/cosh.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { 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color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-comment">// Ported from musl, which is licensed under the MIT license:</span> </span> <span class="line" id="L2"><span class="tok-comment">// https://git.musl-libc.org/cgit/musl/tree/COPYRIGHT</span> </span> <span class="line" id="L3"><span class="tok-comment">//</span> </span> <span class="line" id="L4"><span class="tok-comment">// https://git.musl-libc.org/cgit/musl/tree/src/math/coshf.c</span> </span> <span class="line" id="L5"><span class="tok-comment">// https://git.musl-libc.org/cgit/musl/tree/src/math/cosh.c</span> </span> <span class="line" id="L6"></span> <span class="line" id="L7"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"../std.zig"</span>);</span> <span class="line" id="L8"><span class="tok-kw">const</span> math = std.math;</span> <span class="line" id="L9"><span class="tok-kw">const</span> expo2 = <span class="tok-builtin">@import</span>(<span class="tok-str">"expo2.zig"</span>).expo2;</span> <span class="line" id="L10"><span class="tok-kw">const</span> expect = std.testing.expect;</span> <span class="line" id="L11"><span class="tok-kw">const</span> maxInt = std.math.maxInt;</span> <span class="line" id="L12"></span> <span class="line" id="L13"><span class="tok-comment">/// Returns the hyperbolic cosine of x.</span></span> <span class="line" id="L14"><span class="tok-comment">///</span></span> <span class="line" id="L15"><span class="tok-comment">/// Special Cases:</span></span> <span class="line" id="L16"><span class="tok-comment">/// - cosh(+-0) = 1</span></span> <span class="line" id="L17"><span class="tok-comment">/// - cosh(+-inf) = +inf</span></span> <span class="line" id="L18"><span class="tok-comment">/// - cosh(nan) = nan</span></span> <span class="line" id="L19"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">cosh</span>(x: <span class="tok-kw">anytype</span>) <span class="tok-builtin">@TypeOf</span>(x) {</span> <span class="line" id="L20"> <span class="tok-kw">const</span> T = <span class="tok-builtin">@TypeOf</span>(x);</span> <span class="line" id="L21"> <span class="tok-kw">return</span> <span class="tok-kw">switch</span> (T) {</span> <span class="line" id="L22"> <span class="tok-type">f32</span> => cosh32(x),</span> <span class="line" id="L23"> <span class="tok-type">f64</span> => cosh64(x),</span> <span class="line" id="L24"> <span class="tok-kw">else</span> => <span class="tok-builtin">@compileError</span>(<span class="tok-str">"cosh not implemented for "</span> ++ <span class="tok-builtin">@typeName</span>(T)),</span> <span class="line" id="L25"> };</span> <span class="line" id="L26">}</span> <span class="line" id="L27"></span> <span class="line" id="L28"><span class="tok-comment">// cosh(x) = (exp(x) + 1 / exp(x)) / 2</span> </span> <span class="line" id="L29"><span class="tok-comment">// = 1 + 0.5 * (exp(x) - 1) * (exp(x) - 1) / exp(x)</span> </span> <span class="line" id="L30"><span class="tok-comment">// = 1 + (x * x) / 2 + o(x^4)</span> </span> <span class="line" id="L31"><span class="tok-kw">fn</span> <span class="tok-fn">cosh32</span>(x: <span class="tok-type">f32</span>) <span class="tok-type">f32</span> {</span> <span class="line" id="L32"> <span class="tok-kw">const</span> u = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@bitCast</span>(x));</span> <span class="line" id="L33"> <span class="tok-kw">const</span> ux = u & <span class="tok-number">0x7FFFFFFF</span>;</span> <span class="line" id="L34"> <span class="tok-kw">const</span> ax = <span class="tok-builtin">@as</span>(<span class="tok-type">f32</span>, <span class="tok-builtin">@bitCast</span>(ux));</span> <span class="line" id="L35"></span> <span class="line" id="L36"> <span class="tok-comment">// \|x\| < log(2)</span> </span> <span class="line" id="L37"> <span class="tok-kw">if</span> (ux < <span class="tok-number">0x3F317217</span>) {</span> <span class="line" id="L38"> <span class="tok-kw">if</span> (ux < <span class="tok-number">0x3F800000</span> - (<span class="tok-number">12</span> << <span class="tok-number">23</span>)) {</span> <span class="line" id="L39"> math.raiseOverflow();</span> <span class="line" id="L40"> <span class="tok-kw">return</span> <span class="tok-number">1.0</span>;</span> <span class="line" id="L41"> }</span> <span class="line" id="L42"> <span class="tok-kw">const</span> t = math.expm1(ax);</span> <span class="line" id="L43"> <span class="tok-kw">return</span> <span class="tok-number">1</span> + t * t / (<span class="tok-number">2</span> * (<span class="tok-number">1</span> + t));</span> <span class="line" id="L44"> }</span> <span class="line" id="L45"></span> <span class="line" id="L46"> <span class="tok-comment">// \|x\| < log(FLT_MAX)</span> </span> <span class="line" id="L47"> <span class="tok-kw">if</span> (ux < <span class="tok-number">0x42B17217</span>) {</span> <span class="line" id="L48"> <span class="tok-kw">const</span> t = <span class="tok-builtin">@exp</span>(ax);</span> <span class="line" id="L49"> <span class="tok-kw">return</span> <span class="tok-number">0.5</span> * (t + <span class="tok-number">1</span> / t);</span> <span class="line" id="L50"> }</span> <span class="line" id="L51"></span> <span class="line" id="L52"> <span class="tok-comment">// \|x\| > log(FLT_MAX) or nan</span> </span> <span class="line" id="L53"> <span class="tok-kw">return</span> expo2(ax);</span> <span class="line" id="L54">}</span> <span class="line" id="L55"></span> <span class="line" id="L56"><span class="tok-kw">fn</span> <span class="tok-fn">cosh64</span>(x: <span class="tok-type">f64</span>) <span class="tok-type">f64</span> {</span> <span class="line" id="L57"> <span class="tok-kw">const</span> u = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@bitCast</span>(x));</span> <span class="line" id="L58"> <span class="tok-kw">const</span> w = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(u >> <span class="tok-number">32</span>)) & (maxInt(<span class="tok-type">u32</span>) >> <span class="tok-number">1</span>);</span> <span class="line" id="L59"> <span class="tok-kw">const</span> ax = <span class="tok-builtin">@as</span>(<span class="tok-type">f64</span>, <span class="tok-builtin">@bitCast</span>(u & (maxInt(<span class="tok-type">u64</span>) >> <span class="tok-number">1</span>)));</span> <span class="line" id="L60"></span> <span class="line" id="L61"> <span class="tok-comment">// TODO: Shouldn't need this explicit check.</span> </span> <span class="line" id="L62"> <span class="tok-kw">if</span> (x == <span class="tok-number">0.0</span>) {</span> <span class="line" id="L63"> <span class="tok-kw">return</span> <span class="tok-number">1.0</span>;</span> <span class="line" id="L64"> }</span> <span class="line" id="L65"></span> <span class="line" id="L66"> <span class="tok-comment">// \|x\| < log(2)</span> </span> <span class="line" id="L67"> <span class="tok-kw">if</span> (w < <span class="tok-number">0x3FE62E42</span>) {</span> <span class="line" id="L68"> <span class="tok-kw">if</span> (w < <span class="tok-number">0x3FF00000</span> - (<span class="tok-number">26</span> << <span class="tok-number">20</span>)) {</span> <span class="line" id="L69"> <span class="tok-kw">if</span> (x != <span class="tok-number">0</span>) {</span> <span class="line" id="L70"> math.raiseInexact();</span> <span class="line" id="L71"> }</span> <span class="line" id="L72"> <span class="tok-kw">return</span> <span class="tok-number">1.0</span>;</span> <span class="line" id="L73"> }</span> <span class="line" id="L74"> <span class="tok-kw">const</span> t = math.expm1(ax);</span> <span class="line" id="L75"> <span class="tok-kw">return</span> <span class="tok-number">1</span> + t * t / (<span class="tok-number">2</span> * (<span class="tok-number">1</span> + t));</span> <span class="line" id="L76"> }</span> <span class="line" id="L77"></span> <span class="line" id="L78"> <span class="tok-comment">// \|x\| < log(DBL_MAX)</span> </span> <span class="line" id="L79"> <span class="tok-kw">if</span> (w < <span class="tok-number">0x40862E42</span>) {</span> <span class="line" id="L80"> <span class="tok-kw">const</span> t = <span class="tok-builtin">@exp</span>(ax);</span> <span class="line" id="L81"> <span class="tok-comment">// NOTE: If x > log(0x1p26) then 1/t is not required.</span> </span> <span class="line" id="L82"> <span class="tok-kw">return</span> <span class="tok-number">0.5</span> * (t + <span class="tok-number">1</span> / t);</span> <span class="line" id="L83"> }</span> <span class="line" id="L84"></span> <span class="line" id="L85"> <span class="tok-comment">// \|x\| > log(CBL_MAX) or nan</span> </span> <span class="line" id="L86"> <span class="tok-kw">return</span> expo2(ax);</span> <span class="line" id="L87">}</span> <span class="line" id="L88"></span> <span class="line" id="L89"><span class="tok-kw">test</span> <span class="tok-str">"math.cosh"</span> {</span> <span class="line" id="L90"> <span class="tok-kw">try</span> expect(cosh(<span class="tok-builtin">@as</span>(<span class="tok-type">f32</span>, <span class="tok-number">1.5</span>)) == cosh32(<span class="tok-number">1.5</span>));</span> <span class="line" id="L91"> <span class="tok-kw">try</span> expect(cosh(<span class="tok-builtin">@as</span>(<span class="tok-type">f64</span>, <span class="tok-number">1.5</span>)) == cosh64(<span class="tok-number">1.5</span>));</span> <span class="line" id="L92">}</span> <span class="line" id="L93"></span> <span class="line" id="L94"><span class="tok-kw">test</span> <span class="tok-str">"math.cosh32"</span> {</span> <span class="line" id="L95"> <span class="tok-kw">const</span> epsilon = <span class="tok-number">0.000001</span>;</span> <span class="line" id="L96"></span> <span class="line" id="L97"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, cosh32(<span class="tok-number">0.0</span>), <span class="tok-number">1.0</span>, epsilon));</span> <span class="line" id="L98"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, cosh32(<span class="tok-number">0.2</span>), <span class="tok-number">1.020067</span>, epsilon));</span> <span class="line" id="L99"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, cosh32(<span class="tok-number">0.8923</span>), <span class="tok-number">1.425225</span>, epsilon));</span> <span class="line" id="L100"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, cosh32(<span class="tok-number">1.5</span>), <span class="tok-number">2.352410</span>, epsilon));</span> <span class="line" id="L101"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, cosh32(-<span class="tok-number">0.0</span>), <span class="tok-number">1.0</span>, epsilon));</span> <span class="line" id="L102"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, cosh32(-<span class="tok-number">0.2</span>), <span class="tok-number">1.020067</span>, epsilon));</span> <span class="line" id="L103"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, cosh32(-<span class="tok-number">0.8923</span>), <span class="tok-number">1.425225</span>, epsilon));</span> <span class="line" id="L104"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, cosh32(-<span class="tok-number">1.5</span>), <span class="tok-number">2.352410</span>, epsilon));</span> <span class="line" id="L105">}</span> <span class="line" id="L106"></span> <span class="line" id="L107"><span class="tok-kw">test</span> <span class="tok-str">"math.cosh64"</span> {</span> <span class="line" id="L108"> <span class="tok-kw">const</span> epsilon = <span class="tok-number">0.000001</span>;</span> <span class="line" id="L109"></span> <span class="line" id="L110"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, cosh64(<span class="tok-number">0.0</span>), <span class="tok-number">1.0</span>, epsilon));</span> <span class="line" id="L111"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, cosh64(<span class="tok-number">0.2</span>), <span class="tok-number">1.020067</span>, epsilon));</span> <span class="line" id="L112"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, cosh64(<span class="tok-number">0.8923</span>), <span class="tok-number">1.425225</span>, epsilon));</span> <span class="line" id="L113"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, cosh64(<span class="tok-number">1.5</span>), <span class="tok-number">2.352410</span>, epsilon));</span> <span class="line" id="L114"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, cosh64(-<span class="tok-number">0.0</span>), <span class="tok-number">1.0</span>, epsilon));</span> <span class="line" id="L115"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, cosh64(-<span class="tok-number">0.2</span>), <span class="tok-number">1.020067</span>, epsilon));</span> <span class="line" id="L116"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, cosh64(-<span class="tok-number">0.8923</span>), <span class="tok-number">1.425225</span>, epsilon));</span> <span class="line" id="L117"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, cosh64(-<span class="tok-number">1.5</span>), <span class="tok-number">2.352410</span>, epsilon));</span> <span class="line" id="L118">}</span> <span class="line" id="L119"></span> <span class="line" id="L120"><span class="tok-kw">test</span> <span class="tok-str">"math.cosh32.special"</span> {</span> <span class="line" id="L121"> <span class="tok-kw">try</span> expect(cosh32(<span class="tok-number">0.0</span>) == <span class="tok-number">1.0</span>);</span> <span class="line" id="L122"> <span class="tok-kw">try</span> expect(cosh32(-<span class="tok-number">0.0</span>) == <span class="tok-number">1.0</span>);</span> <span class="line" id="L123"> <span class="tok-kw">try</span> expect(math.isPositiveInf(cosh32(math.inf(<span class="tok-type">f32</span>))));</span> <span class="line" id="L124"> <span class="tok-kw">try</span> expect(math.isPositiveInf(cosh32(-math.inf(<span class="tok-type">f32</span>))));</span> <span class="line" id="L125"> <span class="tok-kw">try</span> expect(math.isNan(cosh32(math.nan(<span class="tok-type">f32</span>))));</span> <span class="line" id="L126">}</span> <span class="line" id="L127"></span> <span class="line" id="L128"><span class="tok-kw">test</span> <span class="tok-str">"math.cosh64.special"</span> {</span> <span class="line" id="L129"> <span class="tok-kw">try</span> expect(cosh64(<span class="tok-number">0.0</span>) == <span class="tok-number">1.0</span>);</span> <span class="line" id="L130"> <span class="tok-kw">try</span> expect(cosh64(-<span class="tok-number">0.0</span>) == <span class="tok-number">1.0</span>);</span> <span class="line" id="L131"> <span class="tok-kw">try</span> expect(math.isPositiveInf(cosh64(math.inf(<span class="tok-type">f64</span>))));</span> <span class="line" id="L132"> <span class="tok-kw">try</span> expect(math.isPositiveInf(cosh64(-math.inf(<span class="tok-type">f64</span>))));</span> <span class="line" id="L133"> <span class="tok-kw">try</span> expect(math.isNan(cosh64(math.nan(<span class="tok-type">f64</span>))));</span> <span class="line" id="L134">}</span> <span class="line" id="L135"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/math/log.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>math/log.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { 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color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-comment">// Ported from musl, which is licensed under the MIT license:</span> </span> <span class="line" id="L2"><span class="tok-comment">// https://git.musl-libc.org/cgit/musl/tree/COPYRIGHT</span> </span> <span class="line" id="L3"><span class="tok-comment">//</span> </span> <span class="line" id="L4"><span class="tok-comment">// https://git.musl-libc.org/cgit/musl/tree/src/math/logf.c</span> </span> <span class="line" id="L5"><span class="tok-comment">// https://git.musl-libc.org/cgit/musl/tree/src/math/log.c</span> </span> <span class="line" id="L6"></span> <span class="line" id="L7"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"../std.zig"</span>);</span> <span class="line" id="L8"><span class="tok-kw">const</span> math = std.math;</span> <span class="line" id="L9"><span class="tok-kw">const</span> expect = std.testing.expect;</span> <span class="line" id="L10"></span> <span class="line" id="L11"><span class="tok-comment">/// Returns the logarithm of x for the provided base.</span></span> <span class="line" id="L12"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">log</span>(<span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>, base: T, x: T) T {</span> <span class="line" id="L13"> <span class="tok-kw">if</span> (base == <span class="tok-number">2</span>) {</span> <span class="line" id="L14"> <span class="tok-kw">return</span> math.log2(x);</span> <span class="line" id="L15"> } <span class="tok-kw">else</span> <span class="tok-kw">if</span> (base == <span class="tok-number">10</span>) {</span> <span class="line" id="L16"> <span class="tok-kw">return</span> math.log10(x);</span> <span class="line" id="L17"> } <span class="tok-kw">else</span> <span class="tok-kw">if</span> ((<span class="tok-builtin">@typeInfo</span>(T) == .Float <span class="tok-kw">or</span> <span class="tok-builtin">@typeInfo</span>(T) == .ComptimeFloat) <span class="tok-kw">and</span> base == math.e) {</span> <span class="line" id="L18"> <span class="tok-kw">return</span> <span class="tok-builtin">@log</span>(x);</span> <span class="line" id="L19"> }</span> <span class="line" id="L20"></span> <span class="line" id="L21"> <span class="tok-kw">const</span> float_base = math.lossyCast(<span class="tok-type">f64</span>, base);</span> <span class="line" id="L22"> <span class="tok-kw">switch</span> (<span class="tok-builtin">@typeInfo</span>(T)) {</span> <span class="line" id="L23"> .ComptimeFloat => {</span> <span class="line" id="L24"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">comptime_float</span>, <span class="tok-builtin">@log</span>(<span class="tok-builtin">@as</span>(<span class="tok-type">f64</span>, x)) / <span class="tok-builtin">@log</span>(float_base));</span> <span class="line" id="L25"> },</span> <span class="line" id="L26"> .ComptimeInt => {</span> <span class="line" id="L27"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">comptime_int</span>, <span class="tok-builtin">@floor</span>(<span class="tok-builtin">@log</span>(<span class="tok-builtin">@as</span>(<span class="tok-type">f64</span>, x)) / <span class="tok-builtin">@log</span>(float_base)));</span> <span class="line" id="L28"> },</span> <span class="line" id="L29"></span> <span class="line" id="L30"> <span class="tok-comment">// TODO implement integer log without using float math</span> </span> <span class="line" id="L31"> .Int => \|IntType\| <span class="tok-kw">switch</span> (IntType.signedness) {</span> <span class="line" id="L32"> .signed => <span class="tok-builtin">@compileError</span>(<span class="tok-str">"log not implemented for signed integers"</span>),</span> <span class="line" id="L33"> .unsigned => <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(T, <span class="tok-builtin">@intFromFloat</span>(<span class="tok-builtin">@floor</span>(<span class="tok-builtin">@log</span>(<span class="tok-builtin">@as</span>(<span class="tok-type">f64</span>, <span class="tok-builtin">@floatFromInt</span>(x))) / <span class="tok-builtin">@log</span>(float_base)))),</span> <span class="line" id="L34"> },</span> <span class="line" id="L35"></span> <span class="line" id="L36"> .Float => {</span> <span class="line" id="L37"> <span class="tok-kw">switch</span> (T) {</span> <span class="line" id="L38"> <span class="tok-type">f32</span> => <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(<span class="tok-type">f32</span>, <span class="tok-builtin">@floatCast</span>(<span class="tok-builtin">@log</span>(<span class="tok-builtin">@as</span>(<span class="tok-type">f64</span>, x)) / <span class="tok-builtin">@log</span>(float_base))),</span> <span class="line" id="L39"> <span class="tok-type">f64</span> => <span class="tok-kw">return</span> <span class="tok-builtin">@log</span>(x) / <span class="tok-builtin">@log</span>(float_base),</span> <span class="line" id="L40"> <span class="tok-kw">else</span> => <span class="tok-builtin">@compileError</span>(<span class="tok-str">"log not implemented for "</span> ++ <span class="tok-builtin">@typeName</span>(T)),</span> <span class="line" id="L41"> }</span> <span class="line" id="L42"> },</span> <span class="line" id="L43"></span> <span class="line" id="L44"> <span class="tok-kw">else</span> => {</span> <span class="line" id="L45"> <span class="tok-builtin">@compileError</span>(<span class="tok-str">"log expects integer or float, found '"</span> ++ <span class="tok-builtin">@typeName</span>(T) ++ <span class="tok-str">"'"</span>);</span> <span class="line" id="L46"> },</span> <span class="line" id="L47"> }</span> <span class="line" id="L48">}</span> <span class="line" id="L49"></span> <span class="line" id="L50"><span class="tok-kw">test</span> <span class="tok-str">"math.log integer"</span> {</span> <span class="line" id="L51"> <span class="tok-kw">try</span> expect(log(<span class="tok-type">u8</span>, <span class="tok-number">2</span>, <span class="tok-number">0x1</span>) == <span class="tok-number">0</span>);</span> <span class="line" id="L52"> <span class="tok-kw">try</span> expect(log(<span class="tok-type">u8</span>, <span class="tok-number">2</span>, <span class="tok-number">0x2</span>) == <span class="tok-number">1</span>);</span> <span class="line" id="L53"> <span class="tok-kw">try</span> expect(log(<span class="tok-type">u16</span>, <span class="tok-number">2</span>, <span class="tok-number">0x72</span>) == <span class="tok-number">6</span>);</span> <span class="line" id="L54"> <span class="tok-kw">try</span> expect(log(<span class="tok-type">u32</span>, <span class="tok-number">2</span>, <span class="tok-number">0xFFFFFF</span>) == <span class="tok-number">23</span>);</span> <span class="line" id="L55"> <span class="tok-kw">try</span> expect(log(<span class="tok-type">u64</span>, <span class="tok-number">2</span>, <span class="tok-number">0x7FF0123456789ABC</span>) == <span class="tok-number">62</span>);</span> <span class="line" id="L56">}</span> <span class="line" id="L57"></span> <span class="line" id="L58"><span class="tok-kw">test</span> <span class="tok-str">"math.log float"</span> {</span> <span class="line" id="L59"> <span class="tok-kw">const</span> epsilon = <span class="tok-number">0.000001</span>;</span> <span class="line" id="L60"></span> <span class="line" id="L61"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, log(<span class="tok-type">f32</span>, <span class="tok-number">6</span>, <span class="tok-number">0.23947</span>), -<span class="tok-number">0.797723</span>, epsilon));</span> <span class="line" id="L62"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, log(<span class="tok-type">f32</span>, <span class="tok-number">89</span>, <span class="tok-number">0.23947</span>), -<span class="tok-number">0.318432</span>, epsilon));</span> <span class="line" id="L63"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, log(<span class="tok-type">f64</span>, <span class="tok-number">123897</span>, <span class="tok-number">12389216414</span>), <span class="tok-number">1.981724596</span>, epsilon));</span> <span class="line" id="L64">}</span> <span class="line" id="L65"></span> <span class="line" id="L66"><span class="tok-kw">test</span> <span class="tok-str">"math.log float_special"</span> {</span> <span class="line" id="L67"> <span class="tok-kw">try</span> expect(log(<span class="tok-type">f32</span>, <span class="tok-number">2</span>, <span class="tok-number">0.2301974</span>) == math.log2(<span class="tok-builtin">@as</span>(<span class="tok-type">f32</span>, <span class="tok-number">0.2301974</span>)));</span> <span class="line" id="L68"> <span class="tok-kw">try</span> expect(log(<span class="tok-type">f32</span>, <span class="tok-number">10</span>, <span class="tok-number">0.2301974</span>) == math.log10(<span class="tok-builtin">@as</span>(<span class="tok-type">f32</span>, <span class="tok-number">0.2301974</span>)));</span> <span class="line" id="L69"></span> <span class="line" id="L70"> <span class="tok-kw">try</span> expect(log(<span class="tok-type">f64</span>, <span class="tok-number">2</span>, <span class="tok-number">213.23019799993</span>) == math.log2(<span class="tok-builtin">@as</span>(<span class="tok-type">f64</span>, <span class="tok-number">213.23019799993</span>)));</span> <span class="line" id="L71"> <span class="tok-kw">try</span> expect(log(<span class="tok-type">f64</span>, <span class="tok-number">10</span>, <span class="tok-number">213.23019799993</span>) == math.log10(<span class="tok-builtin">@as</span>(<span class="tok-type">f64</span>, <span class="tok-number">213.23019799993</span>)));</span> <span class="line" id="L72">}</span> <span class="line" id="L73"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/math/nan.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>math/nan.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> math = <span class="tok-builtin">@import</span>(<span class="tok-str">"../math.zig"</span>);</span> <span class="line" id="L2"></span> <span class="line" id="L3"><span class="tok-comment">/// Returns the nan representation for type T.</span></span> <span class="line" id="L4"><span class="tok-kw">pub</span> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">nan</span>(<span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>) T {</span> <span class="line" id="L5"> <span class="tok-kw">return</span> <span class="tok-kw">switch</span> (<span class="tok-builtin">@typeInfo</span>(T).Float.bits) {</span> <span class="line" id="L6"> <span class="tok-number">16</span> => math.nan_f16,</span> <span class="line" id="L7"> <span class="tok-number">32</span> => math.nan_f32,</span> <span class="line" id="L8"> <span class="tok-number">64</span> => math.nan_f64,</span> <span class="line" id="L9"> <span class="tok-number">80</span> => math.nan_f80,</span> <span class="line" id="L10"> <span class="tok-number">128</span> => math.nan_f128,</span> <span class="line" id="L11"> <span class="tok-kw">else</span> => <span class="tok-builtin">@compileError</span>(<span class="tok-str">"unreachable"</span>),</span> <span class="line" id="L12"> };</span> <span class="line" id="L13">}</span> <span class="line" id="L14"></span> <span class="line" id="L15"><span class="tok-comment">/// Returns the signalling nan representation for type T.</span></span> <span class="line" id="L16"><span class="tok-comment">/// Note: A signalling nan is identical to a standard right now by may have a different bit</span></span> <span class="line" id="L17"><span class="tok-comment">/// representation in the future when required.</span></span> <span class="line" id="L18"><span class="tok-kw">pub</span> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">snan</span>(<span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>) T {</span> <span class="line" id="L19"> <span class="tok-kw">return</span> nan(T);</span> <span class="line" id="L20">}</span> <span class="line" id="L21"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/math/signbit.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>math/signbit.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"../std.zig"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> math = std.math;</span> <span class="line" id="L3"><span class="tok-kw">const</span> expect = std.testing.expect;</span> <span class="line" id="L4"></span> <span class="line" id="L5"><span class="tok-comment">/// Returns whether x is negative or negative 0.</span></span> <span class="line" id="L6"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">signbit</span>(x: <span class="tok-kw">anytype</span>) <span class="tok-type">bool</span> {</span> <span class="line" id="L7"> <span class="tok-kw">const</span> T = <span class="tok-builtin">@TypeOf</span>(x);</span> <span class="line" id="L8"> <span class="tok-kw">const</span> TBits = std.meta.Int(.unsigned, <span class="tok-builtin">@typeInfo</span>(T).Float.bits);</span> <span class="line" id="L9"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(TBits, <span class="tok-builtin">@bitCast</span>(x)) >> (<span class="tok-builtin">@bitSizeOf</span>(T) - <span class="tok-number">1</span>) != <span class="tok-number">0</span>;</span> <span class="line" id="L10">}</span> <span class="line" id="L11"></span> <span class="line" id="L12"><span class="tok-kw">test</span> <span class="tok-str">"math.signbit"</span> {</span> <span class="line" id="L13"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> ([_]<span class="tok-type">type</span>{ <span class="tok-type">f16</span>, <span class="tok-type">f32</span>, <span class="tok-type">f64</span>, <span class="tok-type">f80</span>, <span class="tok-type">f128</span> }) \|T\| {</span> <span class="line" id="L14"> <span class="tok-kw">try</span> expect(!signbit(<span class="tok-builtin">@as</span>(T, <span class="tok-number">0.0</span>)));</span> <span class="line" id="L15"> <span class="tok-kw">try</span> expect(!signbit(<span class="tok-builtin">@as</span>(T, <span class="tok-number">1.0</span>)));</span> <span class="line" id="L16"> <span class="tok-kw">try</span> expect(signbit(<span class="tok-builtin">@as</span>(T, -<span class="tok-number">2.0</span>)));</span> <span class="line" id="L17"> <span class="tok-kw">try</span> expect(signbit(<span class="tok-builtin">@as</span>(T, -<span class="tok-number">0.0</span>)));</span> <span class="line" id="L18"> <span class="tok-kw">try</span> expect(!signbit(math.inf(T)));</span> <span class="line" id="L19"> <span class="tok-kw">try</span> expect(signbit(-math.inf(T)));</span> <span class="line" id="L20"> <span class="tok-kw">try</span> expect(!signbit(math.nan(T)));</span> <span class="line" id="L21"> <span class="tok-kw">try</span> expect(signbit(-math.nan(T)));</span> <span class="line" id="L22"> }</span> <span class="line" id="L23">}</span> <span class="line" id="L24"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/math/hypot.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>math/hypot.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-comment">// Ported from musl, which is licensed under the MIT license:</span> </span> <span class="line" id="L2"><span class="tok-comment">// https://git.musl-libc.org/cgit/musl/tree/COPYRIGHT</span> </span> <span class="line" id="L3"><span class="tok-comment">//</span> </span> <span class="line" id="L4"><span class="tok-comment">// https://git.musl-libc.org/cgit/musl/tree/src/math/hypotf.c</span> </span> <span class="line" id="L5"><span class="tok-comment">// https://git.musl-libc.org/cgit/musl/tree/src/math/hypot.c</span> </span> <span class="line" id="L6"></span> <span class="line" id="L7"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"../std.zig"</span>);</span> <span class="line" id="L8"><span class="tok-kw">const</span> math = std.math;</span> <span class="line" id="L9"><span class="tok-kw">const</span> expect = std.testing.expect;</span> <span class="line" id="L10"><span class="tok-kw">const</span> maxInt = std.math.maxInt;</span> <span class="line" id="L11"></span> <span class="line" id="L12"><span class="tok-comment">/// Returns sqrt(x * x + y * y), avoiding unnecessary overflow and underflow.</span></span> <span class="line" id="L13"><span class="tok-comment">///</span></span> <span class="line" id="L14"><span class="tok-comment">/// Special Cases:</span></span> <span class="line" id="L15"><span class="tok-comment">/// - hypot(+-inf, y) = +inf</span></span> <span class="line" id="L16"><span class="tok-comment">/// - hypot(x, +-inf) = +inf</span></span> <span class="line" id="L17"><span class="tok-comment">/// - hypot(nan, y) = nan</span></span> <span class="line" id="L18"><span class="tok-comment">/// - hypot(x, nan) = nan</span></span> <span class="line" id="L19"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">hypot</span>(<span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>, x: T, y: T) T {</span> <span class="line" id="L20"> <span class="tok-kw">return</span> <span class="tok-kw">switch</span> (T) {</span> <span class="line" id="L21"> <span class="tok-type">f32</span> => hypot32(x, y),</span> <span class="line" id="L22"> <span class="tok-type">f64</span> => hypot64(x, y),</span> <span class="line" id="L23"> <span class="tok-kw">else</span> => <span class="tok-builtin">@compileError</span>(<span class="tok-str">"hypot not implemented for "</span> ++ <span class="tok-builtin">@typeName</span>(T)),</span> <span class="line" id="L24"> };</span> <span class="line" id="L25">}</span> <span class="line" id="L26"></span> <span class="line" id="L27"><span class="tok-kw">fn</span> <span class="tok-fn">hypot32</span>(x: <span class="tok-type">f32</span>, y: <span class="tok-type">f32</span>) <span class="tok-type">f32</span> {</span> <span class="line" id="L28"> <span class="tok-kw">var</span> ux = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@bitCast</span>(x));</span> <span class="line" id="L29"> <span class="tok-kw">var</span> uy = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@bitCast</span>(y));</span> <span class="line" id="L30"></span> <span class="line" id="L31"> ux &= maxInt(<span class="tok-type">u32</span>) >> <span class="tok-number">1</span>;</span> <span class="line" id="L32"> uy &= maxInt(<span class="tok-type">u32</span>) >> <span class="tok-number">1</span>;</span> <span class="line" id="L33"> <span class="tok-kw">if</span> (ux < uy) {</span> <span class="line" id="L34"> <span class="tok-kw">const</span> tmp = ux;</span> <span class="line" id="L35"> ux = uy;</span> <span class="line" id="L36"> uy = tmp;</span> <span class="line" id="L37"> }</span> <span class="line" id="L38"></span> <span class="line" id="L39"> <span class="tok-kw">var</span> xx = <span class="tok-builtin">@as</span>(<span class="tok-type">f32</span>, <span class="tok-builtin">@bitCast</span>(ux));</span> <span class="line" id="L40"> <span class="tok-kw">var</span> yy = <span class="tok-builtin">@as</span>(<span class="tok-type">f32</span>, <span class="tok-builtin">@bitCast</span>(uy));</span> <span class="line" id="L41"> <span class="tok-kw">if</span> (uy == <span class="tok-number">0xFF</span> << <span class="tok-number">23</span>) {</span> <span class="line" id="L42"> <span class="tok-kw">return</span> yy;</span> <span class="line" id="L43"> }</span> <span class="line" id="L44"> <span class="tok-kw">if</span> (ux >= <span class="tok-number">0xFF</span> << <span class="tok-number">23</span> <span class="tok-kw">or</span> uy == <span class="tok-number">0</span> <span class="tok-kw">or</span> ux - uy >= (<span class="tok-number">25</span> << <span class="tok-number">23</span>)) {</span> <span class="line" id="L45"> <span class="tok-kw">return</span> xx + yy;</span> <span class="line" id="L46"> }</span> <span class="line" id="L47"></span> <span class="line" id="L48"> <span class="tok-kw">var</span> z: <span class="tok-type">f32</span> = <span class="tok-number">1.0</span>;</span> <span class="line" id="L49"> <span class="tok-kw">if</span> (ux >= (<span class="tok-number">0x7F</span> + <span class="tok-number">60</span>) << <span class="tok-number">23</span>) {</span> <span class="line" id="L50"> z = <span class="tok-number">0x1.0p90</span>;</span> <span class="line" id="L51"> xx = <span class="tok-number">0x1.0p-90</span>;</span> <span class="line" id="L52"> yy = <span class="tok-number">0x1.0p-90</span>;</span> <span class="line" id="L53"> } <span class="tok-kw">else</span> <span class="tok-kw">if</span> (uy < (<span class="tok-number">0x7F</span> - <span class="tok-number">60</span>) << <span class="tok-number">23</span>) {</span> <span class="line" id="L54"> z = <span class="tok-number">0x1.0p-90</span>;</span> <span class="line" id="L55"> xx = <span class="tok-number">0x1.0p-90</span>;</span> <span class="line" id="L56"> yy = <span class="tok-number">0x1.0p-90</span>;</span> <span class="line" id="L57"> }</span> <span class="line" id="L58"></span> <span class="line" id="L59"> <span class="tok-kw">return</span> z * <span class="tok-builtin">@sqrt</span>(<span class="tok-builtin">@as</span>(<span class="tok-type">f32</span>, <span class="tok-builtin">@floatCast</span>(<span class="tok-builtin">@as</span>(<span class="tok-type">f64</span>, x) * x + <span class="tok-builtin">@as</span>(<span class="tok-type">f64</span>, y) * y)));</span> <span class="line" id="L60">}</span> <span class="line" id="L61"></span> <span class="line" id="L62"><span class="tok-kw">fn</span> <span class="tok-fn">sq</span>(hi: <span class="tok-type">f64</span>, lo: <span class="tok-type">f64</span>, x: <span class="tok-type">f64</span>) <span class="tok-type">void</span> {</span> <span class="line" id="L63"> <span class="tok-kw">const</span> split: <span class="tok-type">f64</span> = <span class="tok-number">0x1.0p27</span> + <span class="tok-number">1.0</span>;</span> <span class="line" id="L64"> <span class="tok-kw">const</span> xc = x * split;</span> <span class="line" id="L65"> <span class="tok-kw">const</span> xh = x - xc + xc;</span> <span class="line" id="L66"> <span class="tok-kw">const</span> xl = x - xh;</span> <span class="line" id="L67"> hi.* = x * x;</span> <span class="line" id="L68"> lo.* = xh * xh - hi.* + <span class="tok-number">2</span> * xh * xl + xl * xl;</span> <span class="line" id="L69">}</span> <span class="line" id="L70"></span> <span class="line" id="L71"><span class="tok-kw">fn</span> <span class="tok-fn">hypot64</span>(x: <span class="tok-type">f64</span>, y: <span class="tok-type">f64</span>) <span class="tok-type">f64</span> {</span> <span class="line" id="L72"> <span class="tok-kw">var</span> ux = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@bitCast</span>(x));</span> <span class="line" id="L73"> <span class="tok-kw">var</span> uy = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@bitCast</span>(y));</span> <span class="line" id="L74"></span> <span class="line" id="L75"> ux &= maxInt(<span class="tok-type">u64</span>) >> <span class="tok-number">1</span>;</span> <span class="line" id="L76"> uy &= maxInt(<span class="tok-type">u64</span>) >> <span class="tok-number">1</span>;</span> <span class="line" id="L77"> <span class="tok-kw">if</span> (ux < uy) {</span> <span class="line" id="L78"> <span class="tok-kw">const</span> tmp = ux;</span> <span class="line" id="L79"> ux = uy;</span> <span class="line" id="L80"> uy = tmp;</span> <span class="line" id="L81"> }</span> <span class="line" id="L82"></span> <span class="line" id="L83"> <span class="tok-kw">const</span> ex = ux >> <span class="tok-number">52</span>;</span> <span class="line" id="L84"> <span class="tok-kw">const</span> ey = uy >> <span class="tok-number">52</span>;</span> <span class="line" id="L85"> <span class="tok-kw">var</span> xx = <span class="tok-builtin">@as</span>(<span class="tok-type">f64</span>, <span class="tok-builtin">@bitCast</span>(ux));</span> <span class="line" id="L86"> <span class="tok-kw">var</span> yy = <span class="tok-builtin">@as</span>(<span class="tok-type">f64</span>, <span class="tok-builtin">@bitCast</span>(uy));</span> <span class="line" id="L87"></span> <span class="line" id="L88"> <span class="tok-comment">// hypot(inf, nan) == inf</span> </span> <span class="line" id="L89"> <span class="tok-kw">if</span> (ey == <span class="tok-number">0x7FF</span>) {</span> <span class="line" id="L90"> <span class="tok-kw">return</span> yy;</span> <span class="line" id="L91"> }</span> <span class="line" id="L92"> <span class="tok-kw">if</span> (ex == <span class="tok-number">0x7FF</span> <span class="tok-kw">or</span> uy == <span class="tok-number">0</span>) {</span> <span class="line" id="L93"> <span class="tok-kw">return</span> xx;</span> <span class="line" id="L94"> }</span> <span class="line" id="L95"></span> <span class="line" id="L96"> <span class="tok-comment">// hypot(x, y) ~= x + y * y / x / 2 with inexact for small y/x</span> </span> <span class="line" id="L97"> <span class="tok-kw">if</span> (ex - ey > <span class="tok-number">64</span>) {</span> <span class="line" id="L98"> <span class="tok-kw">return</span> xx + yy;</span> <span class="line" id="L99"> }</span> <span class="line" id="L100"></span> <span class="line" id="L101"> <span class="tok-kw">var</span> z: <span class="tok-type">f64</span> = <span class="tok-number">1</span>;</span> <span class="line" id="L102"> <span class="tok-kw">if</span> (ex > <span class="tok-number">0x3FF</span> + <span class="tok-number">510</span>) {</span> <span class="line" id="L103"> z = <span class="tok-number">0x1.0p700</span>;</span> <span class="line" id="L104"> xx = <span class="tok-number">0x1.0p-700</span>;</span> <span class="line" id="L105"> yy = <span class="tok-number">0x1.0p-700</span>;</span> <span class="line" id="L106"> } <span class="tok-kw">else</span> <span class="tok-kw">if</span> (ey < <span class="tok-number">0x3FF</span> - <span class="tok-number">450</span>) {</span> <span class="line" id="L107"> z = <span class="tok-number">0x1.0p-700</span>;</span> <span class="line" id="L108"> xx = <span class="tok-number">0x1.0p700</span>;</span> <span class="line" id="L109"> yy = <span class="tok-number">0x1.0p700</span>;</span> <span class="line" id="L110"> }</span> <span class="line" id="L111"></span> <span class="line" id="L112"> <span class="tok-kw">var</span> hx: <span class="tok-type">f64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L113"> <span class="tok-kw">var</span> lx: <span class="tok-type">f64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L114"> <span class="tok-kw">var</span> hy: <span class="tok-type">f64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L115"> <span class="tok-kw">var</span> ly: <span class="tok-type">f64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L116"></span> <span class="line" id="L117"> sq(&hx, &lx, x);</span> <span class="line" id="L118"> sq(&hy, &ly, y);</span> <span class="line" id="L119"></span> <span class="line" id="L120"> <span class="tok-kw">return</span> z * <span class="tok-builtin">@sqrt</span>(ly + lx + hy + hx);</span> <span class="line" id="L121">}</span> <span class="line" id="L122"></span> <span class="line" id="L123"><span class="tok-kw">test</span> <span class="tok-str">"math.hypot"</span> {</span> <span class="line" id="L124"> <span class="tok-kw">try</span> expect(hypot(<span class="tok-type">f32</span>, <span class="tok-number">0.0</span>, -<span class="tok-number">1.2</span>) == hypot32(<span class="tok-number">0.0</span>, -<span class="tok-number">1.2</span>));</span> <span class="line" id="L125"> <span class="tok-kw">try</span> expect(hypot(<span class="tok-type">f64</span>, <span class="tok-number">0.0</span>, -<span class="tok-number">1.2</span>) == hypot64(<span class="tok-number">0.0</span>, -<span class="tok-number">1.2</span>));</span> <span class="line" id="L126">}</span> <span class="line" id="L127"></span> <span class="line" id="L128"><span class="tok-kw">test</span> <span class="tok-str">"math.hypot32"</span> {</span> <span class="line" id="L129"> <span class="tok-kw">const</span> epsilon = <span class="tok-number">0.000001</span>;</span> <span class="line" id="L130"></span> <span class="line" id="L131"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, hypot32(<span class="tok-number">0.0</span>, -<span class="tok-number">1.2</span>), <span class="tok-number">1.2</span>, epsilon));</span> <span class="line" id="L132"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, hypot32(<span class="tok-number">0.2</span>, -<span class="tok-number">0.34</span>), <span class="tok-number">0.394462</span>, epsilon));</span> <span class="line" id="L133"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, hypot32(<span class="tok-number">0.8923</span>, <span class="tok-number">2.636890</span>), <span class="tok-number">2.783772</span>, epsilon));</span> <span class="line" id="L134"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, hypot32(<span class="tok-number">1.5</span>, <span class="tok-number">5.25</span>), <span class="tok-number">5.460083</span>, epsilon));</span> <span class="line" id="L135"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, hypot32(<span class="tok-number">37.45</span>, <span class="tok-number">159.835</span>), <span class="tok-number">164.163742</span>, epsilon));</span> <span class="line" id="L136"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, hypot32(<span class="tok-number">89.123</span>, <span class="tok-number">382.028905</span>), <span class="tok-number">392.286865</span>, epsilon));</span> <span class="line" id="L137"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, hypot32(<span class="tok-number">123123.234375</span>, <span class="tok-number">529428.707813</span>), <span class="tok-number">543556.875</span>, epsilon));</span> <span class="line" id="L138">}</span> <span class="line" id="L139"></span> <span class="line" id="L140"><span class="tok-kw">test</span> <span class="tok-str">"math.hypot64"</span> {</span> <span class="line" id="L141"> <span class="tok-kw">const</span> epsilon = <span class="tok-number">0.000001</span>;</span> <span class="line" id="L142"></span> <span class="line" id="L143"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, hypot64(<span class="tok-number">0.0</span>, -<span class="tok-number">1.2</span>), <span class="tok-number">1.2</span>, epsilon));</span> <span class="line" id="L144"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, hypot64(<span class="tok-number">0.2</span>, -<span class="tok-number">0.34</span>), <span class="tok-number">0.394462</span>, epsilon));</span> <span class="line" id="L145"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, hypot64(<span class="tok-number">0.8923</span>, <span class="tok-number">2.636890</span>), <span class="tok-number">2.783772</span>, epsilon));</span> <span class="line" id="L146"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, hypot64(<span class="tok-number">1.5</span>, <span class="tok-number">5.25</span>), <span class="tok-number">5.460082</span>, epsilon));</span> <span class="line" id="L147"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, hypot64(<span class="tok-number">37.45</span>, <span class="tok-number">159.835</span>), <span class="tok-number">164.163728</span>, epsilon));</span> <span class="line" id="L148"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, hypot64(<span class="tok-number">89.123</span>, <span class="tok-number">382.028905</span>), <span class="tok-number">392.286876</span>, epsilon));</span> <span class="line" id="L149"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, hypot64(<span class="tok-number">123123.234375</span>, <span class="tok-number">529428.707813</span>), <span class="tok-number">543556.885247</span>, epsilon));</span> <span class="line" id="L150">}</span> <span class="line" id="L151"></span> <span class="line" id="L152"><span class="tok-kw">test</span> <span class="tok-str">"math.hypot32.special"</span> {</span> <span class="line" id="L153"> <span class="tok-kw">try</span> expect(math.isPositiveInf(hypot32(math.inf(<span class="tok-type">f32</span>), <span class="tok-number">0.0</span>)));</span> <span class="line" id="L154"> <span class="tok-kw">try</span> expect(math.isPositiveInf(hypot32(-math.inf(<span class="tok-type">f32</span>), <span class="tok-number">0.0</span>)));</span> <span class="line" id="L155"> <span class="tok-kw">try</span> expect(math.isPositiveInf(hypot32(<span class="tok-number">0.0</span>, math.inf(<span class="tok-type">f32</span>))));</span> <span class="line" id="L156"> <span class="tok-kw">try</span> expect(math.isPositiveInf(hypot32(<span class="tok-number">0.0</span>, -math.inf(<span class="tok-type">f32</span>))));</span> <span class="line" id="L157"> <span class="tok-kw">try</span> expect(math.isNan(hypot32(math.nan(<span class="tok-type">f32</span>), <span class="tok-number">0.0</span>)));</span> <span class="line" id="L158"> <span class="tok-kw">try</span> expect(math.isNan(hypot32(<span class="tok-number">0.0</span>, math.nan(<span class="tok-type">f32</span>))));</span> <span class="line" id="L159">}</span> <span class="line" id="L160"></span> <span class="line" id="L161"><span class="tok-kw">test</span> <span class="tok-str">"math.hypot64.special"</span> {</span> <span class="line" id="L162"> <span class="tok-kw">try</span> expect(math.isPositiveInf(hypot64(math.inf(<span class="tok-type">f64</span>), <span class="tok-number">0.0</span>)));</span> <span class="line" id="L163"> <span class="tok-kw">try</span> expect(math.isPositiveInf(hypot64(-math.inf(<span class="tok-type">f64</span>), <span class="tok-number">0.0</span>)));</span> <span class="line" id="L164"> <span class="tok-kw">try</span> expect(math.isPositiveInf(hypot64(<span class="tok-number">0.0</span>, math.inf(<span class="tok-type">f64</span>))));</span> <span class="line" id="L165"> <span class="tok-kw">try</span> expect(math.isPositiveInf(hypot64(<span class="tok-number">0.0</span>, -math.inf(<span class="tok-type">f64</span>))));</span> <span class="line" id="L166"> <span class="tok-kw">try</span> expect(math.isNan(hypot64(math.nan(<span class="tok-type">f64</span>), <span class="tok-number">0.0</span>)));</span> <span class="line" id="L167"> <span class="tok-kw">try</span> expect(math.isNan(hypot64(<span class="tok-number">0.0</span>, math.nan(<span class="tok-type">f64</span>))));</span> <span class="line" id="L168">}</span> <span class="line" id="L169"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/math/modf.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>math/modf.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-comment">// Ported from musl, which is licensed under the MIT license:</span> </span> <span class="line" id="L2"><span class="tok-comment">// https://git.musl-libc.org/cgit/musl/tree/COPYRIGHT</span> </span> <span class="line" id="L3"><span class="tok-comment">//</span> </span> <span class="line" id="L4"><span class="tok-comment">// https://git.musl-libc.org/cgit/musl/tree/src/math/modff.c</span> </span> <span class="line" id="L5"><span class="tok-comment">// https://git.musl-libc.org/cgit/musl/tree/src/math/modf.c</span> </span> <span class="line" id="L6"></span> <span class="line" id="L7"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"../std.zig"</span>);</span> <span class="line" id="L8"><span class="tok-kw">const</span> math = std.math;</span> <span class="line" id="L9"><span class="tok-kw">const</span> expect = std.testing.expect;</span> <span class="line" id="L10"><span class="tok-kw">const</span> expectEqual = std.testing.expectEqual;</span> <span class="line" id="L11"><span class="tok-kw">const</span> maxInt = std.math.maxInt;</span> <span class="line" id="L12"></span> <span class="line" id="L13"><span class="tok-kw">fn</span> <span class="tok-fn">modf_result</span>(<span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L14"> <span class="tok-kw">return</span> <span class="tok-kw">struct</span> {</span> <span class="line" id="L15"> fpart: T,</span> <span class="line" id="L16"> ipart: T,</span> <span class="line" id="L17"> };</span> <span class="line" id="L18">}</span> <span class="line" id="L19"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> modf32_result = modf_result(<span class="tok-type">f32</span>);</span> <span class="line" id="L20"><span class="tok-kw">pub</span> <span class="tok-kw">const</span> modf64_result = modf_result(<span class="tok-type">f64</span>);</span> <span class="line" id="L21"></span> <span class="line" id="L22"><span class="tok-comment">/// Returns the integer and fractional floating-point numbers that sum to x. The sign of each</span></span> <span class="line" id="L23"><span class="tok-comment">/// result is the same as the sign of x.</span></span> <span class="line" id="L24"><span class="tok-comment">///</span></span> <span class="line" id="L25"><span class="tok-comment">/// Special Cases:</span></span> <span class="line" id="L26"><span class="tok-comment">/// - modf(+-inf) = +-inf, nan</span></span> <span class="line" id="L27"><span class="tok-comment">/// - modf(nan) = nan, nan</span></span> <span class="line" id="L28"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">modf</span>(x: <span class="tok-kw">anytype</span>) modf_result(<span class="tok-builtin">@TypeOf</span>(x)) {</span> <span class="line" id="L29"> <span class="tok-kw">const</span> T = <span class="tok-builtin">@TypeOf</span>(x);</span> <span class="line" id="L30"> <span class="tok-kw">return</span> <span class="tok-kw">switch</span> (T) {</span> <span class="line" id="L31"> <span class="tok-type">f32</span> => modf32(x),</span> <span class="line" id="L32"> <span class="tok-type">f64</span> => modf64(x),</span> <span class="line" id="L33"> <span class="tok-kw">else</span> => <span class="tok-builtin">@compileError</span>(<span class="tok-str">"modf not implemented for "</span> ++ <span class="tok-builtin">@typeName</span>(T)),</span> <span class="line" id="L34"> };</span> <span class="line" id="L35">}</span> <span class="line" id="L36"></span> <span class="line" id="L37"><span class="tok-kw">fn</span> <span class="tok-fn">modf32</span>(x: <span class="tok-type">f32</span>) modf32_result {</span> <span class="line" id="L38"> <span class="tok-kw">var</span> result: modf32_result = <span class="tok-null">undefined</span>;</span> <span class="line" id="L39"></span> <span class="line" id="L40"> <span class="tok-kw">const</span> u = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@bitCast</span>(x));</span> <span class="line" id="L41"> <span class="tok-kw">const</span> e = <span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, <span class="tok-builtin">@intCast</span>((u >> <span class="tok-number">23</span>) & <span class="tok-number">0xFF</span>)) - <span class="tok-number">0x7F</span>;</span> <span class="line" id="L42"> <span class="tok-kw">const</span> us = u & <span class="tok-number">0x80000000</span>;</span> <span class="line" id="L43"></span> <span class="line" id="L44"> <span class="tok-comment">// TODO: Shouldn't need this.</span> </span> <span class="line" id="L45"> <span class="tok-kw">if</span> (math.isInf(x)) {</span> <span class="line" id="L46"> result.ipart = x;</span> <span class="line" id="L47"> result.fpart = math.nan(<span class="tok-type">f32</span>);</span> <span class="line" id="L48"> <span class="tok-kw">return</span> result;</span> <span class="line" id="L49"> }</span> <span class="line" id="L50"></span> <span class="line" id="L51"> <span class="tok-comment">// no fractional part</span> </span> <span class="line" id="L52"> <span class="tok-kw">if</span> (e >= <span class="tok-number">23</span>) {</span> <span class="line" id="L53"> result.ipart = x;</span> <span class="line" id="L54"> <span class="tok-kw">if</span> (e == <span class="tok-number">0x80</span> <span class="tok-kw">and</span> u << <span class="tok-number">9</span> != <span class="tok-number">0</span>) { <span class="tok-comment">// nan</span> </span> <span class="line" id="L55"> result.fpart = x;</span> <span class="line" id="L56"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L57"> result.fpart = <span class="tok-builtin">@as</span>(<span class="tok-type">f32</span>, <span class="tok-builtin">@bitCast</span>(us));</span> <span class="line" id="L58"> }</span> <span class="line" id="L59"> <span class="tok-kw">return</span> result;</span> <span class="line" id="L60"> }</span> <span class="line" id="L61"></span> <span class="line" id="L62"> <span class="tok-comment">// no integral part</span> </span> <span class="line" id="L63"> <span class="tok-kw">if</span> (e < <span class="tok-number">0</span>) {</span> <span class="line" id="L64"> result.ipart = <span class="tok-builtin">@as</span>(<span class="tok-type">f32</span>, <span class="tok-builtin">@bitCast</span>(us));</span> <span class="line" id="L65"> result.fpart = x;</span> <span class="line" id="L66"> <span class="tok-kw">return</span> result;</span> <span class="line" id="L67"> }</span> <span class="line" id="L68"></span> <span class="line" id="L69"> <span class="tok-kw">const</span> mask = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-number">0x007FFFFF</span>) >> <span class="tok-builtin">@as</span>(<span class="tok-type">u5</span>, <span class="tok-builtin">@intCast</span>(e));</span> <span class="line" id="L70"> <span class="tok-kw">if</span> (u & mask == <span class="tok-number">0</span>) {</span> <span class="line" id="L71"> result.ipart = x;</span> <span class="line" id="L72"> result.fpart = <span class="tok-builtin">@as</span>(<span class="tok-type">f32</span>, <span class="tok-builtin">@bitCast</span>(us));</span> <span class="line" id="L73"> <span class="tok-kw">return</span> result;</span> <span class="line" id="L74"> }</span> <span class="line" id="L75"></span> <span class="line" id="L76"> <span class="tok-kw">const</span> uf = <span class="tok-builtin">@as</span>(<span class="tok-type">f32</span>, <span class="tok-builtin">@bitCast</span>(u & ~mask));</span> <span class="line" id="L77"> result.ipart = uf;</span> <span class="line" id="L78"> result.fpart = x - uf;</span> <span class="line" id="L79"> <span class="tok-kw">return</span> result;</span> <span class="line" id="L80">}</span> <span class="line" id="L81"></span> <span class="line" id="L82"><span class="tok-kw">fn</span> <span class="tok-fn">modf64</span>(x: <span class="tok-type">f64</span>) modf64_result {</span> <span class="line" id="L83"> <span class="tok-kw">var</span> result: modf64_result = <span class="tok-null">undefined</span>;</span> <span class="line" id="L84"></span> <span class="line" id="L85"> <span class="tok-kw">const</span> u = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@bitCast</span>(x));</span> <span class="line" id="L86"> <span class="tok-kw">const</span> e = <span class="tok-builtin">@as</span>(<span class="tok-type">i32</span>, <span class="tok-builtin">@intCast</span>((u >> <span class="tok-number">52</span>) & <span class="tok-number">0x7FF</span>)) - <span class="tok-number">0x3FF</span>;</span> <span class="line" id="L87"> <span class="tok-kw">const</span> us = u & (<span class="tok-number">1</span> << <span class="tok-number">63</span>);</span> <span class="line" id="L88"></span> <span class="line" id="L89"> <span class="tok-kw">if</span> (math.isInf(x)) {</span> <span class="line" id="L90"> result.ipart = x;</span> <span class="line" id="L91"> result.fpart = math.nan(<span class="tok-type">f64</span>);</span> <span class="line" id="L92"> <span class="tok-kw">return</span> result;</span> <span class="line" id="L93"> }</span> <span class="line" id="L94"></span> <span class="line" id="L95"> <span class="tok-comment">// no fractional part</span> </span> <span class="line" id="L96"> <span class="tok-kw">if</span> (e >= <span class="tok-number">52</span>) {</span> <span class="line" id="L97"> result.ipart = x;</span> <span class="line" id="L98"> <span class="tok-kw">if</span> (e == <span class="tok-number">0x400</span> <span class="tok-kw">and</span> u << <span class="tok-number">12</span> != <span class="tok-number">0</span>) { <span class="tok-comment">// nan</span> </span> <span class="line" id="L99"> result.fpart = x;</span> <span class="line" id="L100"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L101"> result.fpart = <span class="tok-builtin">@as</span>(<span class="tok-type">f64</span>, <span class="tok-builtin">@bitCast</span>(us));</span> <span class="line" id="L102"> }</span> <span class="line" id="L103"> <span class="tok-kw">return</span> result;</span> <span class="line" id="L104"> }</span> <span class="line" id="L105"></span> <span class="line" id="L106"> <span class="tok-comment">// no integral part</span> </span> <span class="line" id="L107"> <span class="tok-kw">if</span> (e < <span class="tok-number">0</span>) {</span> <span class="line" id="L108"> result.ipart = <span class="tok-builtin">@as</span>(<span class="tok-type">f64</span>, <span class="tok-builtin">@bitCast</span>(us));</span> <span class="line" id="L109"> result.fpart = x;</span> <span class="line" id="L110"> <span class="tok-kw">return</span> result;</span> <span class="line" id="L111"> }</span> <span class="line" id="L112"></span> <span class="line" id="L113"> <span class="tok-kw">const</span> mask = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, maxInt(<span class="tok-type">u64</span>) >> <span class="tok-number">12</span>) >> <span class="tok-builtin">@as</span>(<span class="tok-type">u6</span>, <span class="tok-builtin">@intCast</span>(e));</span> <span class="line" id="L114"> <span class="tok-kw">if</span> (u & mask == <span class="tok-number">0</span>) {</span> <span class="line" id="L115"> result.ipart = x;</span> <span class="line" id="L116"> result.fpart = <span class="tok-builtin">@as</span>(<span class="tok-type">f64</span>, <span class="tok-builtin">@bitCast</span>(us));</span> <span class="line" id="L117"> <span class="tok-kw">return</span> result;</span> <span class="line" id="L118"> }</span> <span class="line" id="L119"></span> <span class="line" id="L120"> <span class="tok-kw">const</span> uf = <span class="tok-builtin">@as</span>(<span class="tok-type">f64</span>, <span class="tok-builtin">@bitCast</span>(u & ~mask));</span> <span class="line" id="L121"> result.ipart = uf;</span> <span class="line" id="L122"> result.fpart = x - uf;</span> <span class="line" id="L123"> <span class="tok-kw">return</span> result;</span> <span class="line" id="L124">}</span> <span class="line" id="L125"></span> <span class="line" id="L126"><span class="tok-kw">test</span> <span class="tok-str">"math.modf"</span> {</span> <span class="line" id="L127"> <span class="tok-kw">const</span> a = modf(<span class="tok-builtin">@as</span>(<span class="tok-type">f32</span>, <span class="tok-number">1.0</span>));</span> <span class="line" id="L128"> <span class="tok-kw">const</span> b = modf32(<span class="tok-number">1.0</span>);</span> <span class="line" id="L129"> <span class="tok-comment">// NOTE: No struct comparison on generic return type function? non-named, makes sense, but still.</span> </span> <span class="line" id="L130"> <span class="tok-kw">try</span> expectEqual(a, b);</span> <span class="line" id="L131">}</span> <span class="line" id="L132"></span> <span class="line" id="L133"><span class="tok-kw">test</span> <span class="tok-str">"math.modf32"</span> {</span> <span class="line" id="L134"> <span class="tok-kw">const</span> epsilon = <span class="tok-number">0.000001</span>;</span> <span class="line" id="L135"> <span class="tok-kw">var</span> r: modf32_result = <span class="tok-null">undefined</span>;</span> <span class="line" id="L136"></span> <span class="line" id="L137"> r = modf32(<span class="tok-number">1.0</span>);</span> <span class="line" id="L138"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, r.ipart, <span class="tok-number">1.0</span>, epsilon));</span> <span class="line" id="L139"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, r.fpart, <span class="tok-number">0.0</span>, epsilon));</span> <span class="line" id="L140"></span> <span class="line" id="L141"> r = modf32(<span class="tok-number">2.545</span>);</span> <span class="line" id="L142"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, r.ipart, <span class="tok-number">2.0</span>, epsilon));</span> <span class="line" id="L143"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, r.fpart, <span class="tok-number">0.545</span>, epsilon));</span> <span class="line" id="L144"></span> <span class="line" id="L145"> r = modf32(<span class="tok-number">3.978123</span>);</span> <span class="line" id="L146"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, r.ipart, <span class="tok-number">3.0</span>, epsilon));</span> <span class="line" id="L147"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, r.fpart, <span class="tok-number">0.978123</span>, epsilon));</span> <span class="line" id="L148"></span> <span class="line" id="L149"> r = modf32(<span class="tok-number">43874.3</span>);</span> <span class="line" id="L150"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, r.ipart, <span class="tok-number">43874</span>, epsilon));</span> <span class="line" id="L151"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, r.fpart, <span class="tok-number">0.300781</span>, epsilon));</span> <span class="line" id="L152"></span> <span class="line" id="L153"> r = modf32(<span class="tok-number">1234.340780</span>);</span> <span class="line" id="L154"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, r.ipart, <span class="tok-number">1234</span>, epsilon));</span> <span class="line" id="L155"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, r.fpart, <span class="tok-number">0.340820</span>, epsilon));</span> <span class="line" id="L156">}</span> <span class="line" id="L157"></span> <span class="line" id="L158"><span class="tok-kw">test</span> <span class="tok-str">"math.modf64"</span> {</span> <span class="line" id="L159"> <span class="tok-kw">const</span> epsilon = <span class="tok-number">0.000001</span>;</span> <span class="line" id="L160"> <span class="tok-kw">var</span> r: modf64_result = <span class="tok-null">undefined</span>;</span> <span class="line" id="L161"></span> <span class="line" id="L162"> r = modf64(<span class="tok-number">1.0</span>);</span> <span class="line" id="L163"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, r.ipart, <span class="tok-number">1.0</span>, epsilon));</span> <span class="line" id="L164"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, r.fpart, <span class="tok-number">0.0</span>, epsilon));</span> <span class="line" id="L165"></span> <span class="line" id="L166"> r = modf64(<span class="tok-number">2.545</span>);</span> <span class="line" id="L167"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, r.ipart, <span class="tok-number">2.0</span>, epsilon));</span> <span class="line" id="L168"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, r.fpart, <span class="tok-number">0.545</span>, epsilon));</span> <span class="line" id="L169"></span> <span class="line" id="L170"> r = modf64(<span class="tok-number">3.978123</span>);</span> <span class="line" id="L171"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, r.ipart, <span class="tok-number">3.0</span>, epsilon));</span> <span class="line" id="L172"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, r.fpart, <span class="tok-number">0.978123</span>, epsilon));</span> <span class="line" id="L173"></span> <span class="line" id="L174"> r = modf64(<span class="tok-number">43874.3</span>);</span> <span class="line" id="L175"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, r.ipart, <span class="tok-number">43874</span>, epsilon));</span> <span class="line" id="L176"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, r.fpart, <span class="tok-number">0.3</span>, epsilon));</span> <span class="line" id="L177"></span> <span class="line" id="L178"> r = modf64(<span class="tok-number">1234.340780</span>);</span> <span class="line" id="L179"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, r.ipart, <span class="tok-number">1234</span>, epsilon));</span> <span class="line" id="L180"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, r.fpart, <span class="tok-number">0.340780</span>, epsilon));</span> <span class="line" id="L181">}</span> <span class="line" id="L182"></span> <span class="line" id="L183"><span class="tok-kw">test</span> <span class="tok-str">"math.modf32.special"</span> {</span> <span class="line" id="L184"> <span class="tok-kw">var</span> r: modf32_result = <span class="tok-null">undefined</span>;</span> <span class="line" id="L185"></span> <span class="line" id="L186"> r = modf32(math.inf(<span class="tok-type">f32</span>));</span> <span class="line" id="L187"> <span class="tok-kw">try</span> expect(math.isPositiveInf(r.ipart) <span class="tok-kw">and</span> math.isNan(r.fpart));</span> <span class="line" id="L188"></span> <span class="line" id="L189"> r = modf32(-math.inf(<span class="tok-type">f32</span>));</span> <span class="line" id="L190"> <span class="tok-kw">try</span> expect(math.isNegativeInf(r.ipart) <span class="tok-kw">and</span> math.isNan(r.fpart));</span> <span class="line" id="L191"></span> <span class="line" id="L192"> r = modf32(math.nan(<span class="tok-type">f32</span>));</span> <span class="line" id="L193"> <span class="tok-kw">try</span> expect(math.isNan(r.ipart) <span class="tok-kw">and</span> math.isNan(r.fpart));</span> <span class="line" id="L194">}</span> <span class="line" id="L195"></span> <span class="line" id="L196"><span class="tok-kw">test</span> <span class="tok-str">"math.modf64.special"</span> {</span> <span class="line" id="L197"> <span class="tok-kw">var</span> r: modf64_result = <span class="tok-null">undefined</span>;</span> <span class="line" id="L198"></span> <span class="line" id="L199"> r = modf64(math.inf(<span class="tok-type">f64</span>));</span> <span class="line" id="L200"> <span class="tok-kw">try</span> expect(math.isPositiveInf(r.ipart) <span class="tok-kw">and</span> math.isNan(r.fpart));</span> <span class="line" id="L201"></span> <span class="line" id="L202"> r = modf64(-math.inf(<span class="tok-type">f64</span>));</span> <span class="line" id="L203"> <span class="tok-kw">try</span> expect(math.isNegativeInf(r.ipart) <span class="tok-kw">and</span> math.isNan(r.fpart));</span> <span class="line" id="L204"></span> <span class="line" id="L205"> r = modf64(math.nan(<span class="tok-type">f64</span>));</span> <span class="line" id="L206"> <span class="tok-kw">try</span> expect(math.isNan(r.ipart) <span class="tok-kw">and</span> math.isNan(r.fpart));</span> <span class="line" id="L207">}</span> <span class="line" id="L208"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/math/tanh.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>math/tanh.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { 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color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-comment">// Ported from musl, which is licensed under the MIT license:</span> </span> <span class="line" id="L2"><span class="tok-comment">// https://git.musl-libc.org/cgit/musl/tree/COPYRIGHT</span> </span> <span class="line" id="L3"><span class="tok-comment">//</span> </span> <span class="line" id="L4"><span class="tok-comment">// https://git.musl-libc.org/cgit/musl/tree/src/math/tanhf.c</span> </span> <span class="line" id="L5"><span class="tok-comment">// https://git.musl-libc.org/cgit/musl/tree/src/math/tanh.c</span> </span> <span class="line" id="L6"></span> <span class="line" id="L7"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"../std.zig"</span>);</span> <span class="line" id="L8"><span class="tok-kw">const</span> math = std.math;</span> <span class="line" id="L9"><span class="tok-kw">const</span> expect = std.testing.expect;</span> <span class="line" id="L10"><span class="tok-kw">const</span> expo2 = <span class="tok-builtin">@import</span>(<span class="tok-str">"expo2.zig"</span>).expo2;</span> <span class="line" id="L11"><span class="tok-kw">const</span> maxInt = std.math.maxInt;</span> <span class="line" id="L12"></span> <span class="line" id="L13"><span class="tok-comment">/// Returns the hyperbolic tangent of x.</span></span> <span class="line" id="L14"><span class="tok-comment">///</span></span> <span class="line" id="L15"><span class="tok-comment">/// Special Cases:</span></span> <span class="line" id="L16"><span class="tok-comment">/// - sinh(+-0) = +-0</span></span> <span class="line" id="L17"><span class="tok-comment">/// - sinh(+-inf) = +-1</span></span> <span class="line" id="L18"><span class="tok-comment">/// - sinh(nan) = nan</span></span> <span class="line" id="L19"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">tanh</span>(x: <span class="tok-kw">anytype</span>) <span class="tok-builtin">@TypeOf</span>(x) {</span> <span class="line" id="L20"> <span class="tok-kw">const</span> T = <span class="tok-builtin">@TypeOf</span>(x);</span> <span class="line" id="L21"> <span class="tok-kw">return</span> <span class="tok-kw">switch</span> (T) {</span> <span class="line" id="L22"> <span class="tok-type">f32</span> => tanh32(x),</span> <span class="line" id="L23"> <span class="tok-type">f64</span> => tanh64(x),</span> <span class="line" id="L24"> <span class="tok-kw">else</span> => <span class="tok-builtin">@compileError</span>(<span class="tok-str">"tanh not implemented for "</span> ++ <span class="tok-builtin">@typeName</span>(T)),</span> <span class="line" id="L25"> };</span> <span class="line" id="L26">}</span> <span class="line" id="L27"></span> <span class="line" id="L28"><span class="tok-comment">// tanh(x) = (exp(x) - exp(-x)) / (exp(x) + exp(-x))</span> </span> <span class="line" id="L29"><span class="tok-comment">// = (exp(2x) - 1) / (exp(2x) - 1 + 2)</span> </span> <span class="line" id="L30"><span class="tok-comment">// = (1 - exp(-2x)) / (exp(-2x) - 1 + 2)</span> </span> <span class="line" id="L31"><span class="tok-kw">fn</span> <span class="tok-fn">tanh32</span>(x: <span class="tok-type">f32</span>) <span class="tok-type">f32</span> {</span> <span class="line" id="L32"> <span class="tok-kw">const</span> u = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@bitCast</span>(x));</span> <span class="line" id="L33"> <span class="tok-kw">const</span> ux = u & <span class="tok-number">0x7FFFFFFF</span>;</span> <span class="line" id="L34"> <span class="tok-kw">const</span> ax = <span class="tok-builtin">@as</span>(<span class="tok-type">f32</span>, <span class="tok-builtin">@bitCast</span>(ux));</span> <span class="line" id="L35"> <span class="tok-kw">const</span> sign = (u >> <span class="tok-number">31</span>) != <span class="tok-number">0</span>;</span> <span class="line" id="L36"></span> <span class="line" id="L37"> <span class="tok-kw">var</span> t: <span class="tok-type">f32</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L38"></span> <span class="line" id="L39"> <span class="tok-comment">// \|x\| < log(3) / 2 ~= 0.5493 or nan</span> </span> <span class="line" id="L40"> <span class="tok-kw">if</span> (ux > <span class="tok-number">0x3F0C9F54</span>) {</span> <span class="line" id="L41"> <span class="tok-comment">// \|x\| > 10</span> </span> <span class="line" id="L42"> <span class="tok-kw">if</span> (ux > <span class="tok-number">0x41200000</span>) {</span> <span class="line" id="L43"> t = <span class="tok-number">1.0</span> + <span class="tok-number">0</span> / x;</span> <span class="line" id="L44"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L45"> t = math.expm1(<span class="tok-number">2</span> * ax);</span> <span class="line" id="L46"> t = <span class="tok-number">1</span> - <span class="tok-number">2</span> / (t + <span class="tok-number">2</span>);</span> <span class="line" id="L47"> }</span> <span class="line" id="L48"> }</span> <span class="line" id="L49"> <span class="tok-comment">// \|x\| > log(5 / 3) / 2 ~= 0.2554</span> </span> <span class="line" id="L50"> <span class="tok-kw">else</span> <span class="tok-kw">if</span> (ux > <span class="tok-number">0x3E82C578</span>) {</span> <span class="line" id="L51"> t = math.expm1(<span class="tok-number">2</span> * ax);</span> <span class="line" id="L52"> t = t / (t + <span class="tok-number">2</span>);</span> <span class="line" id="L53"> }</span> <span class="line" id="L54"> <span class="tok-comment">// \|x\| >= 0x1.0p-126</span> </span> <span class="line" id="L55"> <span class="tok-kw">else</span> <span class="tok-kw">if</span> (ux >= <span class="tok-number">0x00800000</span>) {</span> <span class="line" id="L56"> t = math.expm1(-<span class="tok-number">2</span> * ax);</span> <span class="line" id="L57"> t = -t / (t + <span class="tok-number">2</span>);</span> <span class="line" id="L58"> }</span> <span class="line" id="L59"> <span class="tok-comment">// \|x\| is subnormal</span> </span> <span class="line" id="L60"> <span class="tok-kw">else</span> {</span> <span class="line" id="L61"> math.doNotOptimizeAway(ax * ax);</span> <span class="line" id="L62"> t = ax;</span> <span class="line" id="L63"> }</span> <span class="line" id="L64"></span> <span class="line" id="L65"> <span class="tok-kw">return</span> <span class="tok-kw">if</span> (sign) -t <span class="tok-kw">else</span> t;</span> <span class="line" id="L66">}</span> <span class="line" id="L67"></span> <span class="line" id="L68"><span class="tok-kw">fn</span> <span class="tok-fn">tanh64</span>(x: <span class="tok-type">f64</span>) <span class="tok-type">f64</span> {</span> <span class="line" id="L69"> <span class="tok-kw">const</span> u = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@bitCast</span>(x));</span> <span class="line" id="L70"> <span class="tok-kw">const</span> ux = u & <span class="tok-number">0x7FFFFFFFFFFFFFFF</span>;</span> <span class="line" id="L71"> <span class="tok-kw">const</span> w = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(ux >> <span class="tok-number">32</span>));</span> <span class="line" id="L72"> <span class="tok-kw">const</span> ax = <span class="tok-builtin">@as</span>(<span class="tok-type">f64</span>, <span class="tok-builtin">@bitCast</span>(ux));</span> <span class="line" id="L73"> <span class="tok-kw">const</span> sign = (u >> <span class="tok-number">63</span>) != <span class="tok-number">0</span>;</span> <span class="line" id="L74"></span> <span class="line" id="L75"> <span class="tok-kw">var</span> t: <span class="tok-type">f64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L76"></span> <span class="line" id="L77"> <span class="tok-comment">// \|x\| < log(3) / 2 ~= 0.5493 or nan</span> </span> <span class="line" id="L78"> <span class="tok-kw">if</span> (w > <span class="tok-number">0x3FE193EA</span>) {</span> <span class="line" id="L79"> <span class="tok-comment">// \|x\| > 20 or nan</span> </span> <span class="line" id="L80"> <span class="tok-kw">if</span> (w > <span class="tok-number">0x40340000</span>) {</span> <span class="line" id="L81"> t = <span class="tok-number">1.0</span> - <span class="tok-number">0</span> / ax;</span> <span class="line" id="L82"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L83"> t = math.expm1(<span class="tok-number">2</span> * ax);</span> <span class="line" id="L84"> t = <span class="tok-number">1</span> - <span class="tok-number">2</span> / (t + <span class="tok-number">2</span>);</span> <span class="line" id="L85"> }</span> <span class="line" id="L86"> }</span> <span class="line" id="L87"> <span class="tok-comment">// \|x\| > log(5 / 3) / 2 ~= 0.2554</span> </span> <span class="line" id="L88"> <span class="tok-kw">else</span> <span class="tok-kw">if</span> (w > <span class="tok-number">0x3FD058AE</span>) {</span> <span class="line" id="L89"> t = math.expm1(<span class="tok-number">2</span> * ax);</span> <span class="line" id="L90"> t = t / (t + <span class="tok-number">2</span>);</span> <span class="line" id="L91"> }</span> <span class="line" id="L92"> <span class="tok-comment">// \|x\| >= 0x1.0p-1022</span> </span> <span class="line" id="L93"> <span class="tok-kw">else</span> <span class="tok-kw">if</span> (w >= <span class="tok-number">0x00100000</span>) {</span> <span class="line" id="L94"> t = math.expm1(-<span class="tok-number">2</span> * ax);</span> <span class="line" id="L95"> t = -t / (t + <span class="tok-number">2</span>);</span> <span class="line" id="L96"> }</span> <span class="line" id="L97"> <span class="tok-comment">// \|x\| is subnormal</span> </span> <span class="line" id="L98"> <span class="tok-kw">else</span> {</span> <span class="line" id="L99"> math.doNotOptimizeAway(<span class="tok-builtin">@as</span>(<span class="tok-type">f32</span>, <span class="tok-builtin">@floatCast</span>(ax)));</span> <span class="line" id="L100"> t = ax;</span> <span class="line" id="L101"> }</span> <span class="line" id="L102"></span> <span class="line" id="L103"> <span class="tok-kw">return</span> <span class="tok-kw">if</span> (sign) -t <span class="tok-kw">else</span> t;</span> <span class="line" id="L104">}</span> <span class="line" id="L105"></span> <span class="line" id="L106"><span class="tok-kw">test</span> <span class="tok-str">"math.tanh"</span> {</span> <span class="line" id="L107"> <span class="tok-kw">try</span> expect(tanh(<span class="tok-builtin">@as</span>(<span class="tok-type">f32</span>, <span class="tok-number">1.5</span>)) == tanh32(<span class="tok-number">1.5</span>));</span> <span class="line" id="L108"> <span class="tok-kw">try</span> expect(tanh(<span class="tok-builtin">@as</span>(<span class="tok-type">f64</span>, <span class="tok-number">1.5</span>)) == tanh64(<span class="tok-number">1.5</span>));</span> <span class="line" id="L109">}</span> <span class="line" id="L110"></span> <span class="line" id="L111"><span class="tok-kw">test</span> <span class="tok-str">"math.tanh32"</span> {</span> <span class="line" id="L112"> <span class="tok-kw">const</span> epsilon = <span class="tok-number">0.000001</span>;</span> <span class="line" id="L113"></span> <span class="line" id="L114"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, tanh32(<span class="tok-number">0.0</span>), <span class="tok-number">0.0</span>, epsilon));</span> <span class="line" id="L115"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, tanh32(<span class="tok-number">0.2</span>), <span class="tok-number">0.197375</span>, epsilon));</span> <span class="line" id="L116"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, tanh32(<span class="tok-number">0.8923</span>), <span class="tok-number">0.712528</span>, epsilon));</span> <span class="line" id="L117"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, tanh32(<span class="tok-number">1.5</span>), <span class="tok-number">0.905148</span>, epsilon));</span> <span class="line" id="L118"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, tanh32(<span class="tok-number">37.45</span>), <span class="tok-number">1.0</span>, epsilon));</span> <span class="line" id="L119"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, tanh32(-<span class="tok-number">0.8923</span>), -<span class="tok-number">0.712528</span>, epsilon));</span> <span class="line" id="L120"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, tanh32(-<span class="tok-number">1.5</span>), -<span class="tok-number">0.905148</span>, epsilon));</span> <span class="line" id="L121"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, tanh32(-<span class="tok-number">37.45</span>), -<span class="tok-number">1.0</span>, epsilon));</span> <span class="line" id="L122">}</span> <span class="line" id="L123"></span> <span class="line" id="L124"><span class="tok-kw">test</span> <span class="tok-str">"math.tanh64"</span> {</span> <span class="line" id="L125"> <span class="tok-kw">const</span> epsilon = <span class="tok-number">0.000001</span>;</span> <span class="line" id="L126"></span> <span class="line" id="L127"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, tanh64(<span class="tok-number">0.0</span>), <span class="tok-number">0.0</span>, epsilon));</span> <span class="line" id="L128"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, tanh64(<span class="tok-number">0.2</span>), <span class="tok-number">0.197375</span>, epsilon));</span> <span class="line" id="L129"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, tanh64(<span class="tok-number">0.8923</span>), <span class="tok-number">0.712528</span>, epsilon));</span> <span class="line" id="L130"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, tanh64(<span class="tok-number">1.5</span>), <span class="tok-number">0.905148</span>, epsilon));</span> <span class="line" id="L131"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, tanh64(<span class="tok-number">37.45</span>), <span class="tok-number">1.0</span>, epsilon));</span> <span class="line" id="L132"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, tanh64(-<span class="tok-number">0.8923</span>), -<span class="tok-number">0.712528</span>, epsilon));</span> <span class="line" id="L133"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, tanh64(-<span class="tok-number">1.5</span>), -<span class="tok-number">0.905148</span>, epsilon));</span> <span class="line" id="L134"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, tanh64(-<span class="tok-number">37.45</span>), -<span class="tok-number">1.0</span>, epsilon));</span> <span class="line" id="L135">}</span> <span class="line" id="L136"></span> <span class="line" id="L137"><span class="tok-kw">test</span> <span class="tok-str">"math.tanh32.special"</span> {</span> <span class="line" id="L138"> <span class="tok-kw">try</span> expect(tanh32(<span class="tok-number">0.0</span>) == <span class="tok-number">0.0</span>);</span> <span class="line" id="L139"> <span class="tok-kw">try</span> expect(tanh32(-<span class="tok-number">0.0</span>) == -<span class="tok-number">0.0</span>);</span> <span class="line" id="L140"> <span class="tok-kw">try</span> expect(tanh32(math.inf(<span class="tok-type">f32</span>)) == <span class="tok-number">1.0</span>);</span> <span class="line" id="L141"> <span class="tok-kw">try</span> expect(tanh32(-math.inf(<span class="tok-type">f32</span>)) == -<span class="tok-number">1.0</span>);</span> <span class="line" id="L142"> <span class="tok-kw">try</span> expect(math.isNan(tanh32(math.nan(<span class="tok-type">f32</span>))));</span> <span class="line" id="L143">}</span> <span class="line" id="L144"></span> <span class="line" id="L145"><span class="tok-kw">test</span> <span class="tok-str">"math.tanh64.special"</span> {</span> <span class="line" id="L146"> <span class="tok-kw">try</span> expect(tanh64(<span class="tok-number">0.0</span>) == <span class="tok-number">0.0</span>);</span> <span class="line" id="L147"> <span class="tok-kw">try</span> expect(tanh64(-<span class="tok-number">0.0</span>) == -<span class="tok-number">0.0</span>);</span> <span class="line" id="L148"> <span class="tok-kw">try</span> expect(tanh64(math.inf(<span class="tok-type">f64</span>)) == <span class="tok-number">1.0</span>);</span> <span class="line" id="L149"> <span class="tok-kw">try</span> expect(tanh64(-math.inf(<span class="tok-type">f64</span>)) == -<span class="tok-number">1.0</span>);</span> <span class="line" id="L150"> <span class="tok-kw">try</span> expect(math.isNan(tanh64(math.nan(<span class="tok-type">f64</span>))));</span> <span class="line" id="L151">}</span> <span class="line" id="L152"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/math/asin.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>math/asin.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-comment">// Ported from musl, which is licensed under the MIT license:</span> </span> <span class="line" id="L2"><span class="tok-comment">// https://git.musl-libc.org/cgit/musl/tree/COPYRIGHT</span> </span> <span class="line" id="L3"><span class="tok-comment">//</span> </span> <span class="line" id="L4"><span class="tok-comment">// https://git.musl-libc.org/cgit/musl/tree/src/math/asinf.c</span> </span> <span class="line" id="L5"><span class="tok-comment">// https://git.musl-libc.org/cgit/musl/tree/src/math/asin.c</span> </span> <span class="line" id="L6"></span> <span class="line" id="L7"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"../std.zig"</span>);</span> <span class="line" id="L8"><span class="tok-kw">const</span> math = std.math;</span> <span class="line" id="L9"><span class="tok-kw">const</span> expect = std.testing.expect;</span> <span class="line" id="L10"></span> <span class="line" id="L11"><span class="tok-comment">/// Returns the arc-sin of x.</span></span> <span class="line" id="L12"><span class="tok-comment">///</span></span> <span class="line" id="L13"><span class="tok-comment">/// Special Cases:</span></span> <span class="line" id="L14"><span class="tok-comment">/// - asin(+-0) = +-0</span></span> <span class="line" id="L15"><span class="tok-comment">/// - asin(x) = nan if x < -1 or x > 1</span></span> <span class="line" id="L16"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">asin</span>(x: <span class="tok-kw">anytype</span>) <span class="tok-builtin">@TypeOf</span>(x) {</span> <span class="line" id="L17"> <span class="tok-kw">const</span> T = <span class="tok-builtin">@TypeOf</span>(x);</span> <span class="line" id="L18"> <span class="tok-kw">return</span> <span class="tok-kw">switch</span> (T) {</span> <span class="line" id="L19"> <span class="tok-type">f32</span> => asin32(x),</span> <span class="line" id="L20"> <span class="tok-type">f64</span> => asin64(x),</span> <span class="line" id="L21"> <span class="tok-kw">else</span> => <span class="tok-builtin">@compileError</span>(<span class="tok-str">"asin not implemented for "</span> ++ <span class="tok-builtin">@typeName</span>(T)),</span> <span class="line" id="L22"> };</span> <span class="line" id="L23">}</span> <span class="line" id="L24"></span> <span class="line" id="L25"><span class="tok-kw">fn</span> <span class="tok-fn">r32</span>(z: <span class="tok-type">f32</span>) <span class="tok-type">f32</span> {</span> <span class="line" id="L26"> <span class="tok-kw">const</span> pS0 = <span class="tok-number">1.6666586697e-01</span>;</span> <span class="line" id="L27"> <span class="tok-kw">const</span> pS1 = -<span class="tok-number">4.2743422091e-02</span>;</span> <span class="line" id="L28"> <span class="tok-kw">const</span> pS2 = -<span class="tok-number">8.6563630030e-03</span>;</span> <span class="line" id="L29"> <span class="tok-kw">const</span> qS1 = -<span class="tok-number">7.0662963390e-01</span>;</span> <span class="line" id="L30"></span> <span class="line" id="L31"> <span class="tok-kw">const</span> p = z * (pS0 + z * (pS1 + z * pS2));</span> <span class="line" id="L32"> <span class="tok-kw">const</span> q = <span class="tok-number">1.0</span> + z * qS1;</span> <span class="line" id="L33"> <span class="tok-kw">return</span> p / q;</span> <span class="line" id="L34">}</span> <span class="line" id="L35"></span> <span class="line" id="L36"><span class="tok-kw">fn</span> <span class="tok-fn">asin32</span>(x: <span class="tok-type">f32</span>) <span class="tok-type">f32</span> {</span> <span class="line" id="L37"> <span class="tok-kw">const</span> pio2 = <span class="tok-number">1.570796326794896558e+00</span>;</span> <span class="line" id="L38"></span> <span class="line" id="L39"> <span class="tok-kw">const</span> hx: <span class="tok-type">u32</span> = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@bitCast</span>(x));</span> <span class="line" id="L40"> <span class="tok-kw">const</span> ix: <span class="tok-type">u32</span> = hx & <span class="tok-number">0x7FFFFFFF</span>;</span> <span class="line" id="L41"></span> <span class="line" id="L42"> <span class="tok-comment">// \|x\| >= 1</span> </span> <span class="line" id="L43"> <span class="tok-kw">if</span> (ix >= <span class="tok-number">0x3F800000</span>) {</span> <span class="line" id="L44"> <span class="tok-comment">// \|x\| >= 1</span> </span> <span class="line" id="L45"> <span class="tok-kw">if</span> (ix == <span class="tok-number">0x3F800000</span>) {</span> <span class="line" id="L46"> <span class="tok-kw">return</span> x * pio2 + <span class="tok-number">0x1.0p-120</span>; <span class="tok-comment">// asin(+-1) = +-pi/2 with inexact</span> </span> <span class="line" id="L47"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L48"> <span class="tok-kw">return</span> math.nan(<span class="tok-type">f32</span>); <span class="tok-comment">// asin(\|x\| > 1) is nan</span> </span> <span class="line" id="L49"> }</span> <span class="line" id="L50"> }</span> <span class="line" id="L51"></span> <span class="line" id="L52"> <span class="tok-comment">// \|x\| < 0.5</span> </span> <span class="line" id="L53"> <span class="tok-kw">if</span> (ix < <span class="tok-number">0x3F000000</span>) {</span> <span class="line" id="L54"> <span class="tok-comment">// 0x1p-126 <= \|x\| < 0x1p-12</span> </span> <span class="line" id="L55"> <span class="tok-kw">if</span> (ix < <span class="tok-number">0x39800000</span> <span class="tok-kw">and</span> ix >= <span class="tok-number">0x00800000</span>) {</span> <span class="line" id="L56"> <span class="tok-kw">return</span> x;</span> <span class="line" id="L57"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L58"> <span class="tok-kw">return</span> x + x * r32(x * x);</span> <span class="line" id="L59"> }</span> <span class="line" id="L60"> }</span> <span class="line" id="L61"></span> <span class="line" id="L62"> <span class="tok-comment">// 1 > \|x\| >= 0.5</span> </span> <span class="line" id="L63"> <span class="tok-kw">const</span> z = (<span class="tok-number">1</span> - <span class="tok-builtin">@fabs</span>(x)) * <span class="tok-number">0.5</span>;</span> <span class="line" id="L64"> <span class="tok-kw">const</span> s = <span class="tok-builtin">@sqrt</span>(z);</span> <span class="line" id="L65"> <span class="tok-kw">const</span> fx = pio2 - <span class="tok-number">2</span> * (s + s * r32(z));</span> <span class="line" id="L66"></span> <span class="line" id="L67"> <span class="tok-kw">if</span> (hx >> <span class="tok-number">31</span> != <span class="tok-number">0</span>) {</span> <span class="line" id="L68"> <span class="tok-kw">return</span> -fx;</span> <span class="line" id="L69"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L70"> <span class="tok-kw">return</span> fx;</span> <span class="line" id="L71"> }</span> <span class="line" id="L72">}</span> <span class="line" id="L73"></span> <span class="line" id="L74"><span class="tok-kw">fn</span> <span class="tok-fn">r64</span>(z: <span class="tok-type">f64</span>) <span class="tok-type">f64</span> {</span> <span class="line" id="L75"> <span class="tok-kw">const</span> pS0: <span class="tok-type">f64</span> = <span class="tok-number">1.66666666666666657415e-01</span>;</span> <span class="line" id="L76"> <span class="tok-kw">const</span> pS1: <span class="tok-type">f64</span> = -<span class="tok-number">3.25565818622400915405e-01</span>;</span> <span class="line" id="L77"> <span class="tok-kw">const</span> pS2: <span class="tok-type">f64</span> = <span class="tok-number">2.01212532134862925881e-01</span>;</span> <span class="line" id="L78"> <span class="tok-kw">const</span> pS3: <span class="tok-type">f64</span> = -<span class="tok-number">4.00555345006794114027e-02</span>;</span> <span class="line" id="L79"> <span class="tok-kw">const</span> pS4: <span class="tok-type">f64</span> = <span class="tok-number">7.91534994289814532176e-04</span>;</span> <span class="line" id="L80"> <span class="tok-kw">const</span> pS5: <span class="tok-type">f64</span> = <span class="tok-number">3.47933107596021167570e-05</span>;</span> <span class="line" id="L81"> <span class="tok-kw">const</span> qS1: <span class="tok-type">f64</span> = -<span class="tok-number">2.40339491173441421878e+00</span>;</span> <span class="line" id="L82"> <span class="tok-kw">const</span> qS2: <span class="tok-type">f64</span> = <span class="tok-number">2.02094576023350569471e+00</span>;</span> <span class="line" id="L83"> <span class="tok-kw">const</span> qS3: <span class="tok-type">f64</span> = -<span class="tok-number">6.88283971605453293030e-01</span>;</span> <span class="line" id="L84"> <span class="tok-kw">const</span> qS4: <span class="tok-type">f64</span> = <span class="tok-number">7.70381505559019352791e-02</span>;</span> <span class="line" id="L85"></span> <span class="line" id="L86"> <span class="tok-kw">const</span> p = z * (pS0 + z * (pS1 + z * (pS2 + z * (pS3 + z * (pS4 + z * pS5)))));</span> <span class="line" id="L87"> <span class="tok-kw">const</span> q = <span class="tok-number">1.0</span> + z * (qS1 + z * (qS2 + z * (qS3 + z * qS4)));</span> <span class="line" id="L88"> <span class="tok-kw">return</span> p / q;</span> <span class="line" id="L89">}</span> <span class="line" id="L90"></span> <span class="line" id="L91"><span class="tok-kw">fn</span> <span class="tok-fn">asin64</span>(x: <span class="tok-type">f64</span>) <span class="tok-type">f64</span> {</span> <span class="line" id="L92"> <span class="tok-kw">const</span> pio2_hi: <span class="tok-type">f64</span> = <span class="tok-number">1.57079632679489655800e+00</span>;</span> <span class="line" id="L93"> <span class="tok-kw">const</span> pio2_lo: <span class="tok-type">f64</span> = <span class="tok-number">6.12323399573676603587e-17</span>;</span> <span class="line" id="L94"></span> <span class="line" id="L95"> <span class="tok-kw">const</span> ux = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@bitCast</span>(x));</span> <span class="line" id="L96"> <span class="tok-kw">const</span> hx = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(ux >> <span class="tok-number">32</span>));</span> <span class="line" id="L97"> <span class="tok-kw">const</span> ix = hx & <span class="tok-number">0x7FFFFFFF</span>;</span> <span class="line" id="L98"></span> <span class="line" id="L99"> <span class="tok-comment">// \|x\| >= 1 or nan</span> </span> <span class="line" id="L100"> <span class="tok-kw">if</span> (ix >= <span class="tok-number">0x3FF00000</span>) {</span> <span class="line" id="L101"> <span class="tok-kw">const</span> lx = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(ux & <span class="tok-number">0xFFFFFFFF</span>));</span> <span class="line" id="L102"></span> <span class="line" id="L103"> <span class="tok-comment">// asin(1) = +-pi/2 with inexact</span> </span> <span class="line" id="L104"> <span class="tok-kw">if</span> ((ix - <span class="tok-number">0x3FF00000</span>) \| lx == <span class="tok-number">0</span>) {</span> <span class="line" id="L105"> <span class="tok-kw">return</span> x * pio2_hi + <span class="tok-number">0x1.0p-120</span>;</span> <span class="line" id="L106"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L107"> <span class="tok-kw">return</span> math.nan(<span class="tok-type">f64</span>);</span> <span class="line" id="L108"> }</span> <span class="line" id="L109"> }</span> <span class="line" id="L110"></span> <span class="line" id="L111"> <span class="tok-comment">// \|x\| < 0.5</span> </span> <span class="line" id="L112"> <span class="tok-kw">if</span> (ix < <span class="tok-number">0x3FE00000</span>) {</span> <span class="line" id="L113"> <span class="tok-comment">// if 0x1p-1022 <= \|x\| < 0x1p-26 avoid raising overflow</span> </span> <span class="line" id="L114"> <span class="tok-kw">if</span> (ix < <span class="tok-number">0x3E500000</span> <span class="tok-kw">and</span> ix >= <span class="tok-number">0x00100000</span>) {</span> <span class="line" id="L115"> <span class="tok-kw">return</span> x;</span> <span class="line" id="L116"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L117"> <span class="tok-kw">return</span> x + x * r64(x * x);</span> <span class="line" id="L118"> }</span> <span class="line" id="L119"> }</span> <span class="line" id="L120"></span> <span class="line" id="L121"> <span class="tok-comment">// 1 > \|x\| >= 0.5</span> </span> <span class="line" id="L122"> <span class="tok-kw">const</span> z = (<span class="tok-number">1</span> - <span class="tok-builtin">@fabs</span>(x)) * <span class="tok-number">0.5</span>;</span> <span class="line" id="L123"> <span class="tok-kw">const</span> s = <span class="tok-builtin">@sqrt</span>(z);</span> <span class="line" id="L124"> <span class="tok-kw">const</span> r = r64(z);</span> <span class="line" id="L125"> <span class="tok-kw">var</span> fx: <span class="tok-type">f64</span> = <span class="tok-null">undefined</span>;</span> <span class="line" id="L126"></span> <span class="line" id="L127"> <span class="tok-comment">// \|x\| > 0.975</span> </span> <span class="line" id="L128"> <span class="tok-kw">if</span> (ix >= <span class="tok-number">0x3FEF3333</span>) {</span> <span class="line" id="L129"> fx = pio2_hi - <span class="tok-number">2</span> * (s + s * r);</span> <span class="line" id="L130"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L131"> <span class="tok-kw">const</span> jx = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@bitCast</span>(s));</span> <span class="line" id="L132"> <span class="tok-kw">const</span> df = <span class="tok-builtin">@as</span>(<span class="tok-type">f64</span>, <span class="tok-builtin">@bitCast</span>(jx & <span class="tok-number">0xFFFFFFFF00000000</span>));</span> <span class="line" id="L133"> <span class="tok-kw">const</span> c = (z - df * df) / (s + df);</span> <span class="line" id="L134"> fx = <span class="tok-number">0.5</span> * pio2_hi - (<span class="tok-number">2</span> * s * r - (pio2_lo - <span class="tok-number">2</span> * c) - (<span class="tok-number">0.5</span> * pio2_hi - <span class="tok-number">2</span> * df));</span> <span class="line" id="L135"> }</span> <span class="line" id="L136"></span> <span class="line" id="L137"> <span class="tok-kw">if</span> (hx >> <span class="tok-number">31</span> != <span class="tok-number">0</span>) {</span> <span class="line" id="L138"> <span class="tok-kw">return</span> -fx;</span> <span class="line" id="L139"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L140"> <span class="tok-kw">return</span> fx;</span> <span class="line" id="L141"> }</span> <span class="line" id="L142">}</span> <span class="line" id="L143"></span> <span class="line" id="L144"><span class="tok-kw">test</span> <span class="tok-str">"math.asin"</span> {</span> <span class="line" id="L145"> <span class="tok-kw">try</span> expect(asin(<span class="tok-builtin">@as</span>(<span class="tok-type">f32</span>, <span class="tok-number">0.0</span>)) == asin32(<span class="tok-number">0.0</span>));</span> <span class="line" id="L146"> <span class="tok-kw">try</span> expect(asin(<span class="tok-builtin">@as</span>(<span class="tok-type">f64</span>, <span class="tok-number">0.0</span>)) == asin64(<span class="tok-number">0.0</span>));</span> <span class="line" id="L147">}</span> <span class="line" id="L148"></span> <span class="line" id="L149"><span class="tok-kw">test</span> <span class="tok-str">"math.asin32"</span> {</span> <span class="line" id="L150"> <span class="tok-kw">const</span> epsilon = <span class="tok-number">0.000001</span>;</span> <span class="line" id="L151"></span> <span class="line" id="L152"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, asin32(<span class="tok-number">0.0</span>), <span class="tok-number">0.0</span>, epsilon));</span> <span class="line" id="L153"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, asin32(<span class="tok-number">0.2</span>), <span class="tok-number">0.201358</span>, epsilon));</span> <span class="line" id="L154"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, asin32(-<span class="tok-number">0.2</span>), -<span class="tok-number">0.201358</span>, epsilon));</span> <span class="line" id="L155"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, asin32(<span class="tok-number">0.3434</span>), <span class="tok-number">0.350535</span>, epsilon));</span> <span class="line" id="L156"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, asin32(<span class="tok-number">0.5</span>), <span class="tok-number">0.523599</span>, epsilon));</span> <span class="line" id="L157"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, asin32(<span class="tok-number">0.8923</span>), <span class="tok-number">1.102415</span>, epsilon));</span> <span class="line" id="L158">}</span> <span class="line" id="L159"></span> <span class="line" id="L160"><span class="tok-kw">test</span> <span class="tok-str">"math.asin64"</span> {</span> <span class="line" id="L161"> <span class="tok-kw">const</span> epsilon = <span class="tok-number">0.000001</span>;</span> <span class="line" id="L162"></span> <span class="line" id="L163"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, asin64(<span class="tok-number">0.0</span>), <span class="tok-number">0.0</span>, epsilon));</span> <span class="line" id="L164"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, asin64(<span class="tok-number">0.2</span>), <span class="tok-number">0.201358</span>, epsilon));</span> <span class="line" id="L165"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, asin64(-<span class="tok-number">0.2</span>), -<span class="tok-number">0.201358</span>, epsilon));</span> <span class="line" id="L166"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, asin64(<span class="tok-number">0.3434</span>), <span class="tok-number">0.350535</span>, epsilon));</span> <span class="line" id="L167"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, asin64(<span class="tok-number">0.5</span>), <span class="tok-number">0.523599</span>, epsilon));</span> <span class="line" id="L168"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, asin64(<span class="tok-number">0.8923</span>), <span class="tok-number">1.102415</span>, epsilon));</span> <span class="line" id="L169">}</span> <span class="line" id="L170"></span> <span class="line" id="L171"><span class="tok-kw">test</span> <span class="tok-str">"math.asin32.special"</span> {</span> <span class="line" id="L172"> <span class="tok-kw">try</span> expect(asin32(<span class="tok-number">0.0</span>) == <span class="tok-number">0.0</span>);</span> <span class="line" id="L173"> <span class="tok-kw">try</span> expect(asin32(-<span class="tok-number">0.0</span>) == -<span class="tok-number">0.0</span>);</span> <span class="line" id="L174"> <span class="tok-kw">try</span> expect(math.isNan(asin32(-<span class="tok-number">2</span>)));</span> <span class="line" id="L175"> <span class="tok-kw">try</span> expect(math.isNan(asin32(<span class="tok-number">1.5</span>)));</span> <span class="line" id="L176">}</span> <span class="line" id="L177"></span> <span class="line" id="L178"><span class="tok-kw">test</span> <span class="tok-str">"math.asin64.special"</span> {</span> <span class="line" id="L179"> <span class="tok-kw">try</span> expect(asin64(<span class="tok-number">0.0</span>) == <span class="tok-number">0.0</span>);</span> <span class="line" id="L180"> <span class="tok-kw">try</span> expect(asin64(-<span class="tok-number">0.0</span>) == -<span class="tok-number">0.0</span>);</span> <span class="line" id="L181"> <span class="tok-kw">try</span> expect(math.isNan(asin64(-<span class="tok-number">2</span>)));</span> <span class="line" id="L182"> <span class="tok-kw">try</span> expect(math.isNan(asin64(<span class="tok-number">1.5</span>)));</span> <span class="line" id="L183">}</span> <span class="line" id="L184"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/math/atan2.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>math/atan2.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { 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color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-comment">// Ported from musl, which is licensed under the MIT license:</span> </span> <span class="line" id="L2"><span class="tok-comment">// https://git.musl-libc.org/cgit/musl/tree/COPYRIGHT</span> </span> <span class="line" id="L3"><span class="tok-comment">//</span> </span> <span class="line" id="L4"><span class="tok-comment">// https://git.musl-libc.org/cgit/musl/tree/src/math/atan2f.c</span> </span> <span class="line" id="L5"><span class="tok-comment">// https://git.musl-libc.org/cgit/musl/tree/src/math/atan2.c</span> </span> <span class="line" id="L6"></span> <span class="line" id="L7"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"../std.zig"</span>);</span> <span class="line" id="L8"><span class="tok-kw">const</span> math = std.math;</span> <span class="line" id="L9"><span class="tok-kw">const</span> expect = std.testing.expect;</span> <span class="line" id="L10"></span> <span class="line" id="L11"><span class="tok-comment">/// Returns the arc-tangent of y/x.</span></span> <span class="line" id="L12"><span class="tok-comment">///</span></span> <span class="line" id="L13"><span class="tok-comment">/// Special Cases:</span></span> <span class="line" id="L14"><span class="tok-comment">/// - atan2(y, nan) = nan</span></span> <span class="line" id="L15"><span class="tok-comment">/// - atan2(nan, x) = nan</span></span> <span class="line" id="L16"><span class="tok-comment">/// - atan2(+0, x>=0) = +0</span></span> <span class="line" id="L17"><span class="tok-comment">/// - atan2(-0, x>=0) = -0</span></span> <span class="line" id="L18"><span class="tok-comment">/// - atan2(+0, x<=-0) = +pi</span></span> <span class="line" id="L19"><span class="tok-comment">/// - atan2(-0, x<=-0) = -pi</span></span> <span class="line" id="L20"><span class="tok-comment">/// - atan2(y>0, 0) = +pi/2</span></span> <span class="line" id="L21"><span class="tok-comment">/// - atan2(y<0, 0) = -pi/2</span></span> <span class="line" id="L22"><span class="tok-comment">/// - atan2(+inf, +inf) = +pi/4</span></span> <span class="line" id="L23"><span class="tok-comment">/// - atan2(-inf, +inf) = -pi/4</span></span> <span class="line" id="L24"><span class="tok-comment">/// - atan2(+inf, -inf) = 3pi/4</span></span> <span class="line" id="L25"><span class="tok-comment">/// - atan2(-inf, -inf) = -3pi/4</span></span> <span class="line" id="L26"><span class="tok-comment">/// - atan2(y, +inf) = 0</span></span> <span class="line" id="L27"><span class="tok-comment">/// - atan2(y>0, -inf) = +pi</span></span> <span class="line" id="L28"><span class="tok-comment">/// - atan2(y<0, -inf) = -pi</span></span> <span class="line" id="L29"><span class="tok-comment">/// - atan2(+inf, x) = +pi/2</span></span> <span class="line" id="L30"><span class="tok-comment">/// - atan2(-inf, x) = -pi/2</span></span> <span class="line" id="L31"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">atan2</span>(<span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>, y: T, x: T) T {</span> <span class="line" id="L32"> <span class="tok-kw">return</span> <span class="tok-kw">switch</span> (T) {</span> <span class="line" id="L33"> <span class="tok-type">f32</span> => atan2_32(y, x),</span> <span class="line" id="L34"> <span class="tok-type">f64</span> => atan2_64(y, x),</span> <span class="line" id="L35"> <span class="tok-kw">else</span> => <span class="tok-builtin">@compileError</span>(<span class="tok-str">"atan2 not implemented for "</span> ++ <span class="tok-builtin">@typeName</span>(T)),</span> <span class="line" id="L36"> };</span> <span class="line" id="L37">}</span> <span class="line" id="L38"></span> <span class="line" id="L39"><span class="tok-kw">fn</span> <span class="tok-fn">atan2_32</span>(y: <span class="tok-type">f32</span>, x: <span class="tok-type">f32</span>) <span class="tok-type">f32</span> {</span> <span class="line" id="L40"> <span class="tok-kw">const</span> pi: <span class="tok-type">f32</span> = <span class="tok-number">3.1415927410e+00</span>;</span> <span class="line" id="L41"> <span class="tok-kw">const</span> pi_lo: <span class="tok-type">f32</span> = -<span class="tok-number">8.7422776573e-08</span>;</span> <span class="line" id="L42"></span> <span class="line" id="L43"> <span class="tok-kw">if</span> (math.isNan(x) <span class="tok-kw">or</span> math.isNan(y)) {</span> <span class="line" id="L44"> <span class="tok-kw">return</span> x + y;</span> <span class="line" id="L45"> }</span> <span class="line" id="L46"></span> <span class="line" id="L47"> <span class="tok-kw">var</span> ix = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@bitCast</span>(x));</span> <span class="line" id="L48"> <span class="tok-kw">var</span> iy = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@bitCast</span>(y));</span> <span class="line" id="L49"></span> <span class="line" id="L50"> <span class="tok-comment">// x = 1.0</span> </span> <span class="line" id="L51"> <span class="tok-kw">if</span> (ix == <span class="tok-number">0x3F800000</span>) {</span> <span class="line" id="L52"> <span class="tok-kw">return</span> math.atan(y);</span> <span class="line" id="L53"> }</span> <span class="line" id="L54"></span> <span class="line" id="L55"> <span class="tok-comment">// 2 * sign(x) + sign(y)</span> </span> <span class="line" id="L56"> <span class="tok-kw">const</span> m = ((iy >> <span class="tok-number">31</span>) & <span class="tok-number">1</span>) \| ((ix >> <span class="tok-number">30</span>) & <span class="tok-number">2</span>);</span> <span class="line" id="L57"> ix &= <span class="tok-number">0x7FFFFFFF</span>;</span> <span class="line" id="L58"> iy &= <span class="tok-number">0x7FFFFFFF</span>;</span> <span class="line" id="L59"></span> <span class="line" id="L60"> <span class="tok-kw">if</span> (iy == <span class="tok-number">0</span>) {</span> <span class="line" id="L61"> <span class="tok-kw">switch</span> (m) {</span> <span class="line" id="L62"> <span class="tok-number">0</span>, <span class="tok-number">1</span> => <span class="tok-kw">return</span> y, <span class="tok-comment">// atan(+-0, +...)</span> </span> <span class="line" id="L63"> <span class="tok-number">2</span> => <span class="tok-kw">return</span> pi, <span class="tok-comment">// atan(+0, -...)</span> </span> <span class="line" id="L64"> <span class="tok-number">3</span> => <span class="tok-kw">return</span> -pi, <span class="tok-comment">// atan(-0, -...)</span> </span> <span class="line" id="L65"> <span class="tok-kw">else</span> => <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L66"> }</span> <span class="line" id="L67"> }</span> <span class="line" id="L68"></span> <span class="line" id="L69"> <span class="tok-kw">if</span> (ix == <span class="tok-number">0</span>) {</span> <span class="line" id="L70"> <span class="tok-kw">if</span> (m & <span class="tok-number">1</span> != <span class="tok-number">0</span>) {</span> <span class="line" id="L71"> <span class="tok-kw">return</span> -pi / <span class="tok-number">2</span>;</span> <span class="line" id="L72"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L73"> <span class="tok-kw">return</span> pi / <span class="tok-number">2</span>;</span> <span class="line" id="L74"> }</span> <span class="line" id="L75"> }</span> <span class="line" id="L76"></span> <span class="line" id="L77"> <span class="tok-kw">if</span> (ix == <span class="tok-number">0x7F800000</span>) {</span> <span class="line" id="L78"> <span class="tok-kw">if</span> (iy == <span class="tok-number">0x7F800000</span>) {</span> <span class="line" id="L79"> <span class="tok-kw">switch</span> (m) {</span> <span class="line" id="L80"> <span class="tok-number">0</span> => <span class="tok-kw">return</span> pi / <span class="tok-number">4</span>, <span class="tok-comment">// atan(+inf, +inf)</span> </span> <span class="line" id="L81"> <span class="tok-number">1</span> => <span class="tok-kw">return</span> -pi / <span class="tok-number">4</span>, <span class="tok-comment">// atan(-inf, +inf)</span> </span> <span class="line" id="L82"> <span class="tok-number">2</span> => <span class="tok-kw">return</span> <span class="tok-number">3</span> * pi / <span class="tok-number">4</span>, <span class="tok-comment">// atan(+inf, -inf)</span> </span> <span class="line" id="L83"> <span class="tok-number">3</span> => <span class="tok-kw">return</span> -<span class="tok-number">3</span> * pi / <span class="tok-number">4</span>, <span class="tok-comment">// atan(-inf, -inf)</span> </span> <span class="line" id="L84"> <span class="tok-kw">else</span> => <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L85"> }</span> <span class="line" id="L86"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L87"> <span class="tok-kw">switch</span> (m) {</span> <span class="line" id="L88"> <span class="tok-number">0</span> => <span class="tok-kw">return</span> <span class="tok-number">0.0</span>, <span class="tok-comment">// atan(+..., +inf)</span> </span> <span class="line" id="L89"> <span class="tok-number">1</span> => <span class="tok-kw">return</span> -<span class="tok-number">0.0</span>, <span class="tok-comment">// atan(-..., +inf)</span> </span> <span class="line" id="L90"> <span class="tok-number">2</span> => <span class="tok-kw">return</span> pi, <span class="tok-comment">// atan(+..., -inf)</span> </span> <span class="line" id="L91"> <span class="tok-number">3</span> => <span class="tok-kw">return</span> -pi, <span class="tok-comment">// atan(-...f, -inf)</span> </span> <span class="line" id="L92"> <span class="tok-kw">else</span> => <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L93"> }</span> <span class="line" id="L94"> }</span> <span class="line" id="L95"> }</span> <span class="line" id="L96"></span> <span class="line" id="L97"> <span class="tok-comment">// \|y / x\| > 0x1p26</span> </span> <span class="line" id="L98"> <span class="tok-kw">if</span> (ix + (<span class="tok-number">26</span> << <span class="tok-number">23</span>) < iy <span class="tok-kw">or</span> iy == <span class="tok-number">0x7F800000</span>) {</span> <span class="line" id="L99"> <span class="tok-kw">if</span> (m & <span class="tok-number">1</span> != <span class="tok-number">0</span>) {</span> <span class="line" id="L100"> <span class="tok-kw">return</span> -pi / <span class="tok-number">2</span>;</span> <span class="line" id="L101"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L102"> <span class="tok-kw">return</span> pi / <span class="tok-number">2</span>;</span> <span class="line" id="L103"> }</span> <span class="line" id="L104"> }</span> <span class="line" id="L105"></span> <span class="line" id="L106"> <span class="tok-comment">// z = atan(\|y / x\|) with correct underflow</span> </span> <span class="line" id="L107"> <span class="tok-kw">var</span> z = z: {</span> <span class="line" id="L108"> <span class="tok-kw">if</span> ((m & <span class="tok-number">2</span>) != <span class="tok-number">0</span> <span class="tok-kw">and</span> iy + (<span class="tok-number">26</span> << <span class="tok-number">23</span>) < ix) {</span> <span class="line" id="L109"> <span class="tok-kw">break</span> :z <span class="tok-number">0.0</span>;</span> <span class="line" id="L110"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L111"> <span class="tok-kw">break</span> :z math.atan(<span class="tok-builtin">@fabs</span>(y / x));</span> <span class="line" id="L112"> }</span> <span class="line" id="L113"> };</span> <span class="line" id="L114"></span> <span class="line" id="L115"> <span class="tok-kw">switch</span> (m) {</span> <span class="line" id="L116"> <span class="tok-number">0</span> => <span class="tok-kw">return</span> z, <span class="tok-comment">// atan(+, +)</span> </span> <span class="line" id="L117"> <span class="tok-number">1</span> => <span class="tok-kw">return</span> -z, <span class="tok-comment">// atan(-, +)</span> </span> <span class="line" id="L118"> <span class="tok-number">2</span> => <span class="tok-kw">return</span> pi - (z - pi_lo), <span class="tok-comment">// atan(+, -)</span> </span> <span class="line" id="L119"> <span class="tok-number">3</span> => <span class="tok-kw">return</span> (z - pi_lo) - pi, <span class="tok-comment">// atan(-, -)</span> </span> <span class="line" id="L120"> <span class="tok-kw">else</span> => <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L121"> }</span> <span class="line" id="L122">}</span> <span class="line" id="L123"></span> <span class="line" id="L124"><span class="tok-kw">fn</span> <span class="tok-fn">atan2_64</span>(y: <span class="tok-type">f64</span>, x: <span class="tok-type">f64</span>) <span class="tok-type">f64</span> {</span> <span class="line" id="L125"> <span class="tok-kw">const</span> pi: <span class="tok-type">f64</span> = <span class="tok-number">3.1415926535897931160E+00</span>;</span> <span class="line" id="L126"> <span class="tok-kw">const</span> pi_lo: <span class="tok-type">f64</span> = <span class="tok-number">1.2246467991473531772E-16</span>;</span> <span class="line" id="L127"></span> <span class="line" id="L128"> <span class="tok-kw">if</span> (math.isNan(x) <span class="tok-kw">or</span> math.isNan(y)) {</span> <span class="line" id="L129"> <span class="tok-kw">return</span> x + y;</span> <span class="line" id="L130"> }</span> <span class="line" id="L131"></span> <span class="line" id="L132"> <span class="tok-kw">var</span> ux = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@bitCast</span>(x));</span> <span class="line" id="L133"> <span class="tok-kw">var</span> ix = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(ux >> <span class="tok-number">32</span>));</span> <span class="line" id="L134"> <span class="tok-kw">var</span> lx = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(ux & <span class="tok-number">0xFFFFFFFF</span>));</span> <span class="line" id="L135"></span> <span class="line" id="L136"> <span class="tok-kw">var</span> uy = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@bitCast</span>(y));</span> <span class="line" id="L137"> <span class="tok-kw">var</span> iy = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(uy >> <span class="tok-number">32</span>));</span> <span class="line" id="L138"> <span class="tok-kw">var</span> ly = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(uy & <span class="tok-number">0xFFFFFFFF</span>));</span> <span class="line" id="L139"></span> <span class="line" id="L140"> <span class="tok-comment">// x = 1.0</span> </span> <span class="line" id="L141"> <span class="tok-kw">if</span> ((ix -% <span class="tok-number">0x3FF00000</span>) \| lx == <span class="tok-number">0</span>) {</span> <span class="line" id="L142"> <span class="tok-kw">return</span> math.atan(y);</span> <span class="line" id="L143"> }</span> <span class="line" id="L144"></span> <span class="line" id="L145"> <span class="tok-comment">// 2 * sign(x) + sign(y)</span> </span> <span class="line" id="L146"> <span class="tok-kw">const</span> m = ((iy >> <span class="tok-number">31</span>) & <span class="tok-number">1</span>) \| ((ix >> <span class="tok-number">30</span>) & <span class="tok-number">2</span>);</span> <span class="line" id="L147"> ix &= <span class="tok-number">0x7FFFFFFF</span>;</span> <span class="line" id="L148"> iy &= <span class="tok-number">0x7FFFFFFF</span>;</span> <span class="line" id="L149"></span> <span class="line" id="L150"> <span class="tok-kw">if</span> (iy \| ly == <span class="tok-number">0</span>) {</span> <span class="line" id="L151"> <span class="tok-kw">switch</span> (m) {</span> <span class="line" id="L152"> <span class="tok-number">0</span>, <span class="tok-number">1</span> => <span class="tok-kw">return</span> y, <span class="tok-comment">// atan(+-0, +...)</span> </span> <span class="line" id="L153"> <span class="tok-number">2</span> => <span class="tok-kw">return</span> pi, <span class="tok-comment">// atan(+0, -...)</span> </span> <span class="line" id="L154"> <span class="tok-number">3</span> => <span class="tok-kw">return</span> -pi, <span class="tok-comment">// atan(-0, -...)</span> </span> <span class="line" id="L155"> <span class="tok-kw">else</span> => <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L156"> }</span> <span class="line" id="L157"> }</span> <span class="line" id="L158"></span> <span class="line" id="L159"> <span class="tok-kw">if</span> (ix \| lx == <span class="tok-number">0</span>) {</span> <span class="line" id="L160"> <span class="tok-kw">if</span> (m & <span class="tok-number">1</span> != <span class="tok-number">0</span>) {</span> <span class="line" id="L161"> <span class="tok-kw">return</span> -pi / <span class="tok-number">2</span>;</span> <span class="line" id="L162"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L163"> <span class="tok-kw">return</span> pi / <span class="tok-number">2</span>;</span> <span class="line" id="L164"> }</span> <span class="line" id="L165"> }</span> <span class="line" id="L166"></span> <span class="line" id="L167"> <span class="tok-kw">if</span> (ix == <span class="tok-number">0x7FF00000</span>) {</span> <span class="line" id="L168"> <span class="tok-kw">if</span> (iy == <span class="tok-number">0x7FF00000</span>) {</span> <span class="line" id="L169"> <span class="tok-kw">switch</span> (m) {</span> <span class="line" id="L170"> <span class="tok-number">0</span> => <span class="tok-kw">return</span> pi / <span class="tok-number">4</span>, <span class="tok-comment">// atan(+inf, +inf)</span> </span> <span class="line" id="L171"> <span class="tok-number">1</span> => <span class="tok-kw">return</span> -pi / <span class="tok-number">4</span>, <span class="tok-comment">// atan(-inf, +inf)</span> </span> <span class="line" id="L172"> <span class="tok-number">2</span> => <span class="tok-kw">return</span> <span class="tok-number">3</span> * pi / <span class="tok-number">4</span>, <span class="tok-comment">// atan(+inf, -inf)</span> </span> <span class="line" id="L173"> <span class="tok-number">3</span> => <span class="tok-kw">return</span> -<span class="tok-number">3</span> * pi / <span class="tok-number">4</span>, <span class="tok-comment">// atan(-inf, -inf)</span> </span> <span class="line" id="L174"> <span class="tok-kw">else</span> => <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L175"> }</span> <span class="line" id="L176"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L177"> <span class="tok-kw">switch</span> (m) {</span> <span class="line" id="L178"> <span class="tok-number">0</span> => <span class="tok-kw">return</span> <span class="tok-number">0.0</span>, <span class="tok-comment">// atan(+..., +inf)</span> </span> <span class="line" id="L179"> <span class="tok-number">1</span> => <span class="tok-kw">return</span> -<span class="tok-number">0.0</span>, <span class="tok-comment">// atan(-..., +inf)</span> </span> <span class="line" id="L180"> <span class="tok-number">2</span> => <span class="tok-kw">return</span> pi, <span class="tok-comment">// atan(+..., -inf)</span> </span> <span class="line" id="L181"> <span class="tok-number">3</span> => <span class="tok-kw">return</span> -pi, <span class="tok-comment">// atan(-...f, -inf)</span> </span> <span class="line" id="L182"> <span class="tok-kw">else</span> => <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L183"> }</span> <span class="line" id="L184"> }</span> <span class="line" id="L185"> }</span> <span class="line" id="L186"></span> <span class="line" id="L187"> <span class="tok-comment">// \|y / x\| > 0x1p64</span> </span> <span class="line" id="L188"> <span class="tok-kw">if</span> (ix +% (<span class="tok-number">64</span> << <span class="tok-number">20</span>) < iy <span class="tok-kw">or</span> iy == <span class="tok-number">0x7FF00000</span>) {</span> <span class="line" id="L189"> <span class="tok-kw">if</span> (m & <span class="tok-number">1</span> != <span class="tok-number">0</span>) {</span> <span class="line" id="L190"> <span class="tok-kw">return</span> -pi / <span class="tok-number">2</span>;</span> <span class="line" id="L191"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L192"> <span class="tok-kw">return</span> pi / <span class="tok-number">2</span>;</span> <span class="line" id="L193"> }</span> <span class="line" id="L194"> }</span> <span class="line" id="L195"></span> <span class="line" id="L196"> <span class="tok-comment">// z = atan(\|y / x\|) with correct underflow</span> </span> <span class="line" id="L197"> <span class="tok-kw">var</span> z = z: {</span> <span class="line" id="L198"> <span class="tok-kw">if</span> ((m & <span class="tok-number">2</span>) != <span class="tok-number">0</span> <span class="tok-kw">and</span> iy +% (<span class="tok-number">64</span> << <span class="tok-number">20</span>) < ix) {</span> <span class="line" id="L199"> <span class="tok-kw">break</span> :z <span class="tok-number">0.0</span>;</span> <span class="line" id="L200"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L201"> <span class="tok-kw">break</span> :z math.atan(<span class="tok-builtin">@fabs</span>(y / x));</span> <span class="line" id="L202"> }</span> <span class="line" id="L203"> };</span> <span class="line" id="L204"></span> <span class="line" id="L205"> <span class="tok-kw">switch</span> (m) {</span> <span class="line" id="L206"> <span class="tok-number">0</span> => <span class="tok-kw">return</span> z, <span class="tok-comment">// atan(+, +)</span> </span> <span class="line" id="L207"> <span class="tok-number">1</span> => <span class="tok-kw">return</span> -z, <span class="tok-comment">// atan(-, +)</span> </span> <span class="line" id="L208"> <span class="tok-number">2</span> => <span class="tok-kw">return</span> pi - (z - pi_lo), <span class="tok-comment">// atan(+, -)</span> </span> <span class="line" id="L209"> <span class="tok-number">3</span> => <span class="tok-kw">return</span> (z - pi_lo) - pi, <span class="tok-comment">// atan(-, -)</span> </span> <span class="line" id="L210"> <span class="tok-kw">else</span> => <span class="tok-kw">unreachable</span>,</span> <span class="line" id="L211"> }</span> <span class="line" id="L212">}</span> <span class="line" id="L213"></span> <span class="line" id="L214"><span class="tok-kw">test</span> <span class="tok-str">"math.atan2"</span> {</span> <span class="line" id="L215"> <span class="tok-kw">try</span> expect(atan2(<span class="tok-type">f32</span>, <span class="tok-number">0.2</span>, <span class="tok-number">0.21</span>) == atan2_32(<span class="tok-number">0.2</span>, <span class="tok-number">0.21</span>));</span> <span class="line" id="L216"> <span class="tok-kw">try</span> expect(atan2(<span class="tok-type">f64</span>, <span class="tok-number">0.2</span>, <span class="tok-number">0.21</span>) == atan2_64(<span class="tok-number">0.2</span>, <span class="tok-number">0.21</span>));</span> <span class="line" id="L217">}</span> <span class="line" id="L218"></span> <span class="line" id="L219"><span class="tok-kw">test</span> <span class="tok-str">"math.atan2_32"</span> {</span> <span class="line" id="L220"> <span class="tok-kw">const</span> epsilon = <span class="tok-number">0.000001</span>;</span> <span class="line" id="L221"></span> <span class="line" id="L222"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, atan2_32(<span class="tok-number">0.0</span>, <span class="tok-number">0.0</span>), <span class="tok-number">0.0</span>, epsilon));</span> <span class="line" id="L223"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, atan2_32(<span class="tok-number">0.2</span>, <span class="tok-number">0.2</span>), <span class="tok-number">0.785398</span>, epsilon));</span> <span class="line" id="L224"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, atan2_32(-<span class="tok-number">0.2</span>, <span class="tok-number">0.2</span>), -<span class="tok-number">0.785398</span>, epsilon));</span> <span class="line" id="L225"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, atan2_32(<span class="tok-number">0.2</span>, -<span class="tok-number">0.2</span>), <span class="tok-number">2.356194</span>, epsilon));</span> <span class="line" id="L226"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, atan2_32(-<span class="tok-number">0.2</span>, -<span class="tok-number">0.2</span>), -<span class="tok-number">2.356194</span>, epsilon));</span> <span class="line" id="L227"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, atan2_32(<span class="tok-number">0.34</span>, -<span class="tok-number">0.4</span>), <span class="tok-number">2.437099</span>, epsilon));</span> <span class="line" id="L228"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, atan2_32(<span class="tok-number">0.34</span>, <span class="tok-number">1.243</span>), <span class="tok-number">0.267001</span>, epsilon));</span> <span class="line" id="L229">}</span> <span class="line" id="L230"></span> <span class="line" id="L231"><span class="tok-kw">test</span> <span class="tok-str">"math.atan2_64"</span> {</span> <span class="line" id="L232"> <span class="tok-kw">const</span> epsilon = <span class="tok-number">0.000001</span>;</span> <span class="line" id="L233"></span> <span class="line" id="L234"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, atan2_64(<span class="tok-number">0.0</span>, <span class="tok-number">0.0</span>), <span class="tok-number">0.0</span>, epsilon));</span> <span class="line" id="L235"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, atan2_64(<span class="tok-number">0.2</span>, <span class="tok-number">0.2</span>), <span class="tok-number">0.785398</span>, epsilon));</span> <span class="line" id="L236"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, atan2_64(-<span class="tok-number">0.2</span>, <span class="tok-number">0.2</span>), -<span class="tok-number">0.785398</span>, epsilon));</span> <span class="line" id="L237"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, atan2_64(<span class="tok-number">0.2</span>, -<span class="tok-number">0.2</span>), <span class="tok-number">2.356194</span>, epsilon));</span> <span class="line" id="L238"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, atan2_64(-<span class="tok-number">0.2</span>, -<span class="tok-number">0.2</span>), -<span class="tok-number">2.356194</span>, epsilon));</span> <span class="line" id="L239"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, atan2_64(<span class="tok-number">0.34</span>, -<span class="tok-number">0.4</span>), <span class="tok-number">2.437099</span>, epsilon));</span> <span class="line" id="L240"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, atan2_64(<span class="tok-number">0.34</span>, <span class="tok-number">1.243</span>), <span class="tok-number">0.267001</span>, epsilon));</span> <span class="line" id="L241">}</span> <span class="line" id="L242"></span> <span class="line" id="L243"><span class="tok-kw">test</span> <span class="tok-str">"math.atan2_32.special"</span> {</span> <span class="line" id="L244"> <span class="tok-kw">const</span> epsilon = <span class="tok-number">0.000001</span>;</span> <span class="line" id="L245"></span> <span class="line" id="L246"> <span class="tok-kw">try</span> expect(math.isNan(atan2_32(<span class="tok-number">1.0</span>, math.nan(<span class="tok-type">f32</span>))));</span> <span class="line" id="L247"> <span class="tok-kw">try</span> expect(math.isNan(atan2_32(math.nan(<span class="tok-type">f32</span>), <span class="tok-number">1.0</span>)));</span> <span class="line" id="L248"> <span class="tok-kw">try</span> expect(atan2_32(<span class="tok-number">0.0</span>, <span class="tok-number">5.0</span>) == <span class="tok-number">0.0</span>);</span> <span class="line" id="L249"> <span class="tok-kw">try</span> expect(atan2_32(-<span class="tok-number">0.0</span>, <span class="tok-number">5.0</span>) == -<span class="tok-number">0.0</span>);</span> <span class="line" id="L250"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, atan2_32(<span class="tok-number">0.0</span>, -<span class="tok-number">5.0</span>), math.pi, epsilon));</span> <span class="line" id="L251"> <span class="tok-comment">//expect(math.approxEqAbs(f32, atan2_32(-0.0, -5.0), -math.pi, .{.rel=0,.abs=epsilon})); TODO support negative zero?</span> </span> <span class="line" id="L252"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, atan2_32(<span class="tok-number">1.0</span>, <span class="tok-number">0.0</span>), math.pi / <span class="tok-number">2.0</span>, epsilon));</span> <span class="line" id="L253"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, atan2_32(<span class="tok-number">1.0</span>, -<span class="tok-number">0.0</span>), math.pi / <span class="tok-number">2.0</span>, epsilon));</span> <span class="line" id="L254"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, atan2_32(-<span class="tok-number">1.0</span>, <span class="tok-number">0.0</span>), -math.pi / <span class="tok-number">2.0</span>, epsilon));</span> <span class="line" id="L255"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, atan2_32(-<span class="tok-number">1.0</span>, -<span class="tok-number">0.0</span>), -math.pi / <span class="tok-number">2.0</span>, epsilon));</span> <span class="line" id="L256"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, atan2_32(math.inf(<span class="tok-type">f32</span>), math.inf(<span class="tok-type">f32</span>)), math.pi / <span class="tok-number">4.0</span>, epsilon));</span> <span class="line" id="L257"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, atan2_32(-math.inf(<span class="tok-type">f32</span>), math.inf(<span class="tok-type">f32</span>)), -math.pi / <span class="tok-number">4.0</span>, epsilon));</span> <span class="line" id="L258"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, atan2_32(math.inf(<span class="tok-type">f32</span>), -math.inf(<span class="tok-type">f32</span>)), <span class="tok-number">3.0</span> * math.pi / <span class="tok-number">4.0</span>, epsilon));</span> <span class="line" id="L259"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, atan2_32(-math.inf(<span class="tok-type">f32</span>), -math.inf(<span class="tok-type">f32</span>)), -<span class="tok-number">3.0</span> * math.pi / <span class="tok-number">4.0</span>, epsilon));</span> <span class="line" id="L260"> <span class="tok-kw">try</span> expect(atan2_32(<span class="tok-number">1.0</span>, math.inf(<span class="tok-type">f32</span>)) == <span class="tok-number">0.0</span>);</span> <span class="line" id="L261"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, atan2_32(<span class="tok-number">1.0</span>, -math.inf(<span class="tok-type">f32</span>)), math.pi, epsilon));</span> <span class="line" id="L262"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, atan2_32(-<span class="tok-number">1.0</span>, -math.inf(<span class="tok-type">f32</span>)), -math.pi, epsilon));</span> <span class="line" id="L263"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, atan2_32(math.inf(<span class="tok-type">f32</span>), <span class="tok-number">1.0</span>), math.pi / <span class="tok-number">2.0</span>, epsilon));</span> <span class="line" id="L264"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, atan2_32(-math.inf(<span class="tok-type">f32</span>), <span class="tok-number">1.0</span>), -math.pi / <span class="tok-number">2.0</span>, epsilon));</span> <span class="line" id="L265">}</span> <span class="line" id="L266"></span> <span class="line" id="L267"><span class="tok-kw">test</span> <span class="tok-str">"math.atan2_64.special"</span> {</span> <span class="line" id="L268"> <span class="tok-kw">const</span> epsilon = <span class="tok-number">0.000001</span>;</span> <span class="line" id="L269"></span> <span class="line" id="L270"> <span class="tok-kw">try</span> expect(math.isNan(atan2_64(<span class="tok-number">1.0</span>, math.nan(<span class="tok-type">f64</span>))));</span> <span class="line" id="L271"> <span class="tok-kw">try</span> expect(math.isNan(atan2_64(math.nan(<span class="tok-type">f64</span>), <span class="tok-number">1.0</span>)));</span> <span class="line" id="L272"> <span class="tok-kw">try</span> expect(atan2_64(<span class="tok-number">0.0</span>, <span class="tok-number">5.0</span>) == <span class="tok-number">0.0</span>);</span> <span class="line" id="L273"> <span class="tok-kw">try</span> expect(atan2_64(-<span class="tok-number">0.0</span>, <span class="tok-number">5.0</span>) == -<span class="tok-number">0.0</span>);</span> <span class="line" id="L274"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, atan2_64(<span class="tok-number">0.0</span>, -<span class="tok-number">5.0</span>), math.pi, epsilon));</span> <span class="line" id="L275"> <span class="tok-comment">//expect(math.approxEqAbs(f64, atan2_64(-0.0, -5.0), -math.pi, .{.rel=0,.abs=epsilon})); TODO support negative zero?</span> </span> <span class="line" id="L276"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, atan2_64(<span class="tok-number">1.0</span>, <span class="tok-number">0.0</span>), math.pi / <span class="tok-number">2.0</span>, epsilon));</span> <span class="line" id="L277"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, atan2_64(<span class="tok-number">1.0</span>, -<span class="tok-number">0.0</span>), math.pi / <span class="tok-number">2.0</span>, epsilon));</span> <span class="line" id="L278"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, atan2_64(-<span class="tok-number">1.0</span>, <span class="tok-number">0.0</span>), -math.pi / <span class="tok-number">2.0</span>, epsilon));</span> <span class="line" id="L279"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, atan2_64(-<span class="tok-number">1.0</span>, -<span class="tok-number">0.0</span>), -math.pi / <span class="tok-number">2.0</span>, epsilon));</span> <span class="line" id="L280"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, atan2_64(math.inf(<span class="tok-type">f64</span>), math.inf(<span class="tok-type">f64</span>)), math.pi / <span class="tok-number">4.0</span>, epsilon));</span> <span class="line" id="L281"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, atan2_64(-math.inf(<span class="tok-type">f64</span>), math.inf(<span class="tok-type">f64</span>)), -math.pi / <span class="tok-number">4.0</span>, epsilon));</span> <span class="line" id="L282"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, atan2_64(math.inf(<span class="tok-type">f64</span>), -math.inf(<span class="tok-type">f64</span>)), <span class="tok-number">3.0</span> * math.pi / <span class="tok-number">4.0</span>, epsilon));</span> <span class="line" id="L283"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, atan2_64(-math.inf(<span class="tok-type">f64</span>), -math.inf(<span class="tok-type">f64</span>)), -<span class="tok-number">3.0</span> * math.pi / <span class="tok-number">4.0</span>, epsilon));</span> <span class="line" id="L284"> <span class="tok-kw">try</span> expect(atan2_64(<span class="tok-number">1.0</span>, math.inf(<span class="tok-type">f64</span>)) == <span class="tok-number">0.0</span>);</span> <span class="line" id="L285"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, atan2_64(<span class="tok-number">1.0</span>, -math.inf(<span class="tok-type">f64</span>)), math.pi, epsilon));</span> <span class="line" id="L286"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, atan2_64(-<span class="tok-number">1.0</span>, -math.inf(<span class="tok-type">f64</span>)), -math.pi, epsilon));</span> <span class="line" id="L287"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, atan2_64(math.inf(<span class="tok-type">f64</span>), <span class="tok-number">1.0</span>), math.pi / <span class="tok-number">2.0</span>, epsilon));</span> <span class="line" id="L288"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, atan2_64(-math.inf(<span class="tok-type">f64</span>), <span class="tok-number">1.0</span>), -math.pi / <span class="tok-number">2.0</span>, epsilon));</span> <span class="line" id="L289">}</span> <span class="line" id="L290"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/math/acos.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>math/acos.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-comment">// Ported from musl, which is licensed under the MIT license:</span> </span> <span class="line" id="L2"><span class="tok-comment">// https://git.musl-libc.org/cgit/musl/tree/COPYRIGHT</span> </span> <span class="line" id="L3"><span class="tok-comment">//</span> </span> <span class="line" id="L4"><span class="tok-comment">// https://git.musl-libc.org/cgit/musl/tree/src/math/acosf.c</span> </span> <span class="line" id="L5"><span class="tok-comment">// https://git.musl-libc.org/cgit/musl/tree/src/math/acos.c</span> </span> <span class="line" id="L6"></span> <span class="line" id="L7"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"../std.zig"</span>);</span> <span class="line" id="L8"><span class="tok-kw">const</span> math = std.math;</span> <span class="line" id="L9"><span class="tok-kw">const</span> expect = std.testing.expect;</span> <span class="line" id="L10"></span> <span class="line" id="L11"><span class="tok-comment">/// Returns the arc-cosine of x.</span></span> <span class="line" id="L12"><span class="tok-comment">///</span></span> <span class="line" id="L13"><span class="tok-comment">/// Special cases:</span></span> <span class="line" id="L14"><span class="tok-comment">/// - acos(x) = nan if x < -1 or x > 1</span></span> <span class="line" id="L15"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">acos</span>(x: <span class="tok-kw">anytype</span>) <span class="tok-builtin">@TypeOf</span>(x) {</span> <span class="line" id="L16"> <span class="tok-kw">const</span> T = <span class="tok-builtin">@TypeOf</span>(x);</span> <span class="line" id="L17"> <span class="tok-kw">return</span> <span class="tok-kw">switch</span> (T) {</span> <span class="line" id="L18"> <span class="tok-type">f32</span> => acos32(x),</span> <span class="line" id="L19"> <span class="tok-type">f64</span> => acos64(x),</span> <span class="line" id="L20"> <span class="tok-kw">else</span> => <span class="tok-builtin">@compileError</span>(<span class="tok-str">"acos not implemented for "</span> ++ <span class="tok-builtin">@typeName</span>(T)),</span> <span class="line" id="L21"> };</span> <span class="line" id="L22">}</span> <span class="line" id="L23"></span> <span class="line" id="L24"><span class="tok-kw">fn</span> <span class="tok-fn">r32</span>(z: <span class="tok-type">f32</span>) <span class="tok-type">f32</span> {</span> <span class="line" id="L25"> <span class="tok-kw">const</span> pS0 = <span class="tok-number">1.6666586697e-01</span>;</span> <span class="line" id="L26"> <span class="tok-kw">const</span> pS1 = -<span class="tok-number">4.2743422091e-02</span>;</span> <span class="line" id="L27"> <span class="tok-kw">const</span> pS2 = -<span class="tok-number">8.6563630030e-03</span>;</span> <span class="line" id="L28"> <span class="tok-kw">const</span> qS1 = -<span class="tok-number">7.0662963390e-01</span>;</span> <span class="line" id="L29"></span> <span class="line" id="L30"> <span class="tok-kw">const</span> p = z * (pS0 + z * (pS1 + z * pS2));</span> <span class="line" id="L31"> <span class="tok-kw">const</span> q = <span class="tok-number">1.0</span> + z * qS1;</span> <span class="line" id="L32"> <span class="tok-kw">return</span> p / q;</span> <span class="line" id="L33">}</span> <span class="line" id="L34"></span> <span class="line" id="L35"><span class="tok-kw">fn</span> <span class="tok-fn">acos32</span>(x: <span class="tok-type">f32</span>) <span class="tok-type">f32</span> {</span> <span class="line" id="L36"> <span class="tok-kw">const</span> pio2_hi = <span class="tok-number">1.5707962513e+00</span>;</span> <span class="line" id="L37"> <span class="tok-kw">const</span> pio2_lo = <span class="tok-number">7.5497894159e-08</span>;</span> <span class="line" id="L38"></span> <span class="line" id="L39"> <span class="tok-kw">const</span> hx: <span class="tok-type">u32</span> = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@bitCast</span>(x));</span> <span class="line" id="L40"> <span class="tok-kw">const</span> ix: <span class="tok-type">u32</span> = hx & <span class="tok-number">0x7FFFFFFF</span>;</span> <span class="line" id="L41"></span> <span class="line" id="L42"> <span class="tok-comment">// \|x\| >= 1 or nan</span> </span> <span class="line" id="L43"> <span class="tok-kw">if</span> (ix >= <span class="tok-number">0x3F800000</span>) {</span> <span class="line" id="L44"> <span class="tok-kw">if</span> (ix == <span class="tok-number">0x3F800000</span>) {</span> <span class="line" id="L45"> <span class="tok-kw">if</span> (hx >> <span class="tok-number">31</span> != <span class="tok-number">0</span>) {</span> <span class="line" id="L46"> <span class="tok-kw">return</span> <span class="tok-number">2.0</span> * pio2_hi + <span class="tok-number">0x1.0p-120</span>;</span> <span class="line" id="L47"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L48"> <span class="tok-kw">return</span> <span class="tok-number">0.0</span>;</span> <span class="line" id="L49"> }</span> <span class="line" id="L50"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L51"> <span class="tok-kw">return</span> math.nan(<span class="tok-type">f32</span>);</span> <span class="line" id="L52"> }</span> <span class="line" id="L53"> }</span> <span class="line" id="L54"></span> <span class="line" id="L55"> <span class="tok-comment">// \|x\| < 0.5</span> </span> <span class="line" id="L56"> <span class="tok-kw">if</span> (ix < <span class="tok-number">0x3F000000</span>) {</span> <span class="line" id="L57"> <span class="tok-kw">if</span> (ix <= <span class="tok-number">0x32800000</span>) { <span class="tok-comment">// \|x\| < 2^(-26)</span> </span> <span class="line" id="L58"> <span class="tok-kw">return</span> pio2_hi + <span class="tok-number">0x1.0p-120</span>;</span> <span class="line" id="L59"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L60"> <span class="tok-kw">return</span> pio2_hi - (x - (pio2_lo - x * r32(x * x)));</span> <span class="line" id="L61"> }</span> <span class="line" id="L62"> }</span> <span class="line" id="L63"></span> <span class="line" id="L64"> <span class="tok-comment">// x < -0.5</span> </span> <span class="line" id="L65"> <span class="tok-kw">if</span> (hx >> <span class="tok-number">31</span> != <span class="tok-number">0</span>) {</span> <span class="line" id="L66"> <span class="tok-kw">const</span> z = (<span class="tok-number">1</span> + x) * <span class="tok-number">0.5</span>;</span> <span class="line" id="L67"> <span class="tok-kw">const</span> s = <span class="tok-builtin">@sqrt</span>(z);</span> <span class="line" id="L68"> <span class="tok-kw">const</span> w = r32(z) * s - pio2_lo;</span> <span class="line" id="L69"> <span class="tok-kw">return</span> <span class="tok-number">2</span> * (pio2_hi - (s + w));</span> <span class="line" id="L70"> }</span> <span class="line" id="L71"></span> <span class="line" id="L72"> <span class="tok-comment">// x > 0.5</span> </span> <span class="line" id="L73"> <span class="tok-kw">const</span> z = (<span class="tok-number">1.0</span> - x) * <span class="tok-number">0.5</span>;</span> <span class="line" id="L74"> <span class="tok-kw">const</span> s = <span class="tok-builtin">@sqrt</span>(z);</span> <span class="line" id="L75"> <span class="tok-kw">const</span> jx = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@bitCast</span>(s));</span> <span class="line" id="L76"> <span class="tok-kw">const</span> df = <span class="tok-builtin">@as</span>(<span class="tok-type">f32</span>, <span class="tok-builtin">@bitCast</span>(jx & <span class="tok-number">0xFFFFF000</span>));</span> <span class="line" id="L77"> <span class="tok-kw">const</span> c = (z - df * df) / (s + df);</span> <span class="line" id="L78"> <span class="tok-kw">const</span> w = r32(z) * s + c;</span> <span class="line" id="L79"> <span class="tok-kw">return</span> <span class="tok-number">2</span> * (df + w);</span> <span class="line" id="L80">}</span> <span class="line" id="L81"></span> <span class="line" id="L82"><span class="tok-kw">fn</span> <span class="tok-fn">r64</span>(z: <span class="tok-type">f64</span>) <span class="tok-type">f64</span> {</span> <span class="line" id="L83"> <span class="tok-kw">const</span> pS0: <span class="tok-type">f64</span> = <span class="tok-number">1.66666666666666657415e-01</span>;</span> <span class="line" id="L84"> <span class="tok-kw">const</span> pS1: <span class="tok-type">f64</span> = -<span class="tok-number">3.25565818622400915405e-01</span>;</span> <span class="line" id="L85"> <span class="tok-kw">const</span> pS2: <span class="tok-type">f64</span> = <span class="tok-number">2.01212532134862925881e-01</span>;</span> <span class="line" id="L86"> <span class="tok-kw">const</span> pS3: <span class="tok-type">f64</span> = -<span class="tok-number">4.00555345006794114027e-02</span>;</span> <span class="line" id="L87"> <span class="tok-kw">const</span> pS4: <span class="tok-type">f64</span> = <span class="tok-number">7.91534994289814532176e-04</span>;</span> <span class="line" id="L88"> <span class="tok-kw">const</span> pS5: <span class="tok-type">f64</span> = <span class="tok-number">3.47933107596021167570e-05</span>;</span> <span class="line" id="L89"> <span class="tok-kw">const</span> qS1: <span class="tok-type">f64</span> = -<span class="tok-number">2.40339491173441421878e+00</span>;</span> <span class="line" id="L90"> <span class="tok-kw">const</span> qS2: <span class="tok-type">f64</span> = <span class="tok-number">2.02094576023350569471e+00</span>;</span> <span class="line" id="L91"> <span class="tok-kw">const</span> qS3: <span class="tok-type">f64</span> = -<span class="tok-number">6.88283971605453293030e-01</span>;</span> <span class="line" id="L92"> <span class="tok-kw">const</span> qS4: <span class="tok-type">f64</span> = <span class="tok-number">7.70381505559019352791e-02</span>;</span> <span class="line" id="L93"></span> <span class="line" id="L94"> <span class="tok-kw">const</span> p = z * (pS0 + z * (pS1 + z * (pS2 + z * (pS3 + z * (pS4 + z * pS5)))));</span> <span class="line" id="L95"> <span class="tok-kw">const</span> q = <span class="tok-number">1.0</span> + z * (qS1 + z * (qS2 + z * (qS3 + z * qS4)));</span> <span class="line" id="L96"> <span class="tok-kw">return</span> p / q;</span> <span class="line" id="L97">}</span> <span class="line" id="L98"></span> <span class="line" id="L99"><span class="tok-kw">fn</span> <span class="tok-fn">acos64</span>(x: <span class="tok-type">f64</span>) <span class="tok-type">f64</span> {</span> <span class="line" id="L100"> <span class="tok-kw">const</span> pio2_hi: <span class="tok-type">f64</span> = <span class="tok-number">1.57079632679489655800e+00</span>;</span> <span class="line" id="L101"> <span class="tok-kw">const</span> pio2_lo: <span class="tok-type">f64</span> = <span class="tok-number">6.12323399573676603587e-17</span>;</span> <span class="line" id="L102"></span> <span class="line" id="L103"> <span class="tok-kw">const</span> ux = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@bitCast</span>(x));</span> <span class="line" id="L104"> <span class="tok-kw">const</span> hx = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(ux >> <span class="tok-number">32</span>));</span> <span class="line" id="L105"> <span class="tok-kw">const</span> ix = hx & <span class="tok-number">0x7FFFFFFF</span>;</span> <span class="line" id="L106"></span> <span class="line" id="L107"> <span class="tok-comment">// \|x\| >= 1 or nan</span> </span> <span class="line" id="L108"> <span class="tok-kw">if</span> (ix >= <span class="tok-number">0x3FF00000</span>) {</span> <span class="line" id="L109"> <span class="tok-kw">const</span> lx = <span class="tok-builtin">@as</span>(<span class="tok-type">u32</span>, <span class="tok-builtin">@intCast</span>(ux & <span class="tok-number">0xFFFFFFFF</span>));</span> <span class="line" id="L110"></span> <span class="line" id="L111"> <span class="tok-comment">// acos(1) = 0, acos(-1) = pi</span> </span> <span class="line" id="L112"> <span class="tok-kw">if</span> ((ix - <span class="tok-number">0x3FF00000</span>) \| lx == <span class="tok-number">0</span>) {</span> <span class="line" id="L113"> <span class="tok-kw">if</span> (hx >> <span class="tok-number">31</span> != <span class="tok-number">0</span>) {</span> <span class="line" id="L114"> <span class="tok-kw">return</span> <span class="tok-number">2</span> * pio2_hi + <span class="tok-number">0x1.0p-120</span>;</span> <span class="line" id="L115"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L116"> <span class="tok-kw">return</span> <span class="tok-number">0</span>;</span> <span class="line" id="L117"> }</span> <span class="line" id="L118"> }</span> <span class="line" id="L119"></span> <span class="line" id="L120"> <span class="tok-kw">return</span> math.nan(<span class="tok-type">f32</span>);</span> <span class="line" id="L121"> }</span> <span class="line" id="L122"></span> <span class="line" id="L123"> <span class="tok-comment">// \|x\| < 0.5</span> </span> <span class="line" id="L124"> <span class="tok-kw">if</span> (ix < <span class="tok-number">0x3FE00000</span>) {</span> <span class="line" id="L125"> <span class="tok-comment">// \|x\| < 2^(-57)</span> </span> <span class="line" id="L126"> <span class="tok-kw">if</span> (ix <= <span class="tok-number">0x3C600000</span>) {</span> <span class="line" id="L127"> <span class="tok-kw">return</span> pio2_hi + <span class="tok-number">0x1.0p-120</span>;</span> <span class="line" id="L128"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L129"> <span class="tok-kw">return</span> pio2_hi - (x - (pio2_lo - x * r64(x * x)));</span> <span class="line" id="L130"> }</span> <span class="line" id="L131"> }</span> <span class="line" id="L132"></span> <span class="line" id="L133"> <span class="tok-comment">// x < -0.5</span> </span> <span class="line" id="L134"> <span class="tok-kw">if</span> (hx >> <span class="tok-number">31</span> != <span class="tok-number">0</span>) {</span> <span class="line" id="L135"> <span class="tok-kw">const</span> z = (<span class="tok-number">1.0</span> + x) * <span class="tok-number">0.5</span>;</span> <span class="line" id="L136"> <span class="tok-kw">const</span> s = <span class="tok-builtin">@sqrt</span>(z);</span> <span class="line" id="L137"> <span class="tok-kw">const</span> w = r64(z) * s - pio2_lo;</span> <span class="line" id="L138"> <span class="tok-kw">return</span> <span class="tok-number">2</span> * (pio2_hi - (s + w));</span> <span class="line" id="L139"> }</span> <span class="line" id="L140"></span> <span class="line" id="L141"> <span class="tok-comment">// x > 0.5</span> </span> <span class="line" id="L142"> <span class="tok-kw">const</span> z = (<span class="tok-number">1.0</span> - x) * <span class="tok-number">0.5</span>;</span> <span class="line" id="L143"> <span class="tok-kw">const</span> s = <span class="tok-builtin">@sqrt</span>(z);</span> <span class="line" id="L144"> <span class="tok-kw">const</span> jx = <span class="tok-builtin">@as</span>(<span class="tok-type">u64</span>, <span class="tok-builtin">@bitCast</span>(s));</span> <span class="line" id="L145"> <span class="tok-kw">const</span> df = <span class="tok-builtin">@as</span>(<span class="tok-type">f64</span>, <span class="tok-builtin">@bitCast</span>(jx & <span class="tok-number">0xFFFFFFFF00000000</span>));</span> <span class="line" id="L146"> <span class="tok-kw">const</span> c = (z - df * df) / (s + df);</span> <span class="line" id="L147"> <span class="tok-kw">const</span> w = r64(z) * s + c;</span> <span class="line" id="L148"> <span class="tok-kw">return</span> <span class="tok-number">2</span> * (df + w);</span> <span class="line" id="L149">}</span> <span class="line" id="L150"></span> <span class="line" id="L151"><span class="tok-kw">test</span> <span class="tok-str">"math.acos"</span> {</span> <span class="line" id="L152"> <span class="tok-kw">try</span> expect(acos(<span class="tok-builtin">@as</span>(<span class="tok-type">f32</span>, <span class="tok-number">0.0</span>)) == acos32(<span class="tok-number">0.0</span>));</span> <span class="line" id="L153"> <span class="tok-kw">try</span> expect(acos(<span class="tok-builtin">@as</span>(<span class="tok-type">f64</span>, <span class="tok-number">0.0</span>)) == acos64(<span class="tok-number">0.0</span>));</span> <span class="line" id="L154">}</span> <span class="line" id="L155"></span> <span class="line" id="L156"><span class="tok-kw">test</span> <span class="tok-str">"math.acos32"</span> {</span> <span class="line" id="L157"> <span class="tok-kw">const</span> epsilon = <span class="tok-number">0.000001</span>;</span> <span class="line" id="L158"></span> <span class="line" id="L159"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, acos32(<span class="tok-number">0.0</span>), <span class="tok-number">1.570796</span>, epsilon));</span> <span class="line" id="L160"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, acos32(<span class="tok-number">0.2</span>), <span class="tok-number">1.369438</span>, epsilon));</span> <span class="line" id="L161"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, acos32(<span class="tok-number">0.3434</span>), <span class="tok-number">1.220262</span>, epsilon));</span> <span class="line" id="L162"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, acos32(<span class="tok-number">0.5</span>), <span class="tok-number">1.047198</span>, epsilon));</span> <span class="line" id="L163"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, acos32(<span class="tok-number">0.8923</span>), <span class="tok-number">0.468382</span>, epsilon));</span> <span class="line" id="L164"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f32</span>, acos32(-<span class="tok-number">0.2</span>), <span class="tok-number">1.772154</span>, epsilon));</span> <span class="line" id="L165">}</span> <span class="line" id="L166"></span> <span class="line" id="L167"><span class="tok-kw">test</span> <span class="tok-str">"math.acos64"</span> {</span> <span class="line" id="L168"> <span class="tok-kw">const</span> epsilon = <span class="tok-number">0.000001</span>;</span> <span class="line" id="L169"></span> <span class="line" id="L170"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, acos64(<span class="tok-number">0.0</span>), <span class="tok-number">1.570796</span>, epsilon));</span> <span class="line" id="L171"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, acos64(<span class="tok-number">0.2</span>), <span class="tok-number">1.369438</span>, epsilon));</span> <span class="line" id="L172"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, acos64(<span class="tok-number">0.3434</span>), <span class="tok-number">1.220262</span>, epsilon));</span> <span class="line" id="L173"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, acos64(<span class="tok-number">0.5</span>), <span class="tok-number">1.047198</span>, epsilon));</span> <span class="line" id="L174"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, acos64(<span class="tok-number">0.8923</span>), <span class="tok-number">0.468382</span>, epsilon));</span> <span class="line" id="L175"> <span class="tok-kw">try</span> expect(math.approxEqAbs(<span class="tok-type">f64</span>, acos64(-<span class="tok-number">0.2</span>), <span class="tok-number">1.772154</span>, epsilon));</span> <span class="line" id="L176">}</span> <span class="line" id="L177"></span> <span class="line" id="L178"><span class="tok-kw">test</span> <span class="tok-str">"math.acos32.special"</span> {</span> <span class="line" id="L179"> <span class="tok-kw">try</span> expect(math.isNan(acos32(-<span class="tok-number">2</span>)));</span> <span class="line" id="L180"> <span class="tok-kw">try</span> expect(math.isNan(acos32(<span class="tok-number">1.5</span>)));</span> <span class="line" id="L181">}</span> <span class="line" id="L182"></span> <span class="line" id="L183"><span class="tok-kw">test</span> <span class="tok-str">"math.acos64.special"</span> {</span> <span class="line" id="L184"> <span class="tok-kw">try</span> expect(math.isNan(acos64(-<span class="tok-number">2</span>)));</span> <span class="line" id="L185"> <span class="tok-kw">try</span> expect(math.isNan(acos64(<span class="tok-number">1.5</span>)));</span> <span class="line" id="L186">}</span> <span class="line" id="L187"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/math/isnan.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>math/isnan.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; 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} .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"../std.zig"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> math = std.math;</span> <span class="line" id="L3"><span class="tok-kw">const</span> expect = std.testing.expect;</span> <span class="line" id="L4"><span class="tok-kw">const</span> maxInt = std.math.maxInt;</span> <span class="line" id="L5"></span> <span class="line" id="L6"><span class="tok-comment">/// Returns whether x is a nan.</span></span> <span class="line" id="L7"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">isNan</span>(x: <span class="tok-kw">anytype</span>) <span class="tok-type">bool</span> {</span> <span class="line" id="L8"> <span class="tok-kw">return</span> x != x;</span> <span class="line" id="L9">}</span> <span class="line" id="L10"></span> <span class="line" id="L11"><span class="tok-comment">/// Returns whether x is a signalling nan.</span></span> <span class="line" id="L12"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">isSignalNan</span>(x: <span class="tok-kw">anytype</span>) <span class="tok-type">bool</span> {</span> <span class="line" id="L13"> <span class="tok-comment">// Note: A signalling nan is identical to a standard nan right now but may have a different bit</span> </span> <span class="line" id="L14"> <span class="tok-comment">// representation in the future when required.</span> </span> <span class="line" id="L15"> <span class="tok-kw">return</span> isNan(x);</span> <span class="line" id="L16">}</span> <span class="line" id="L17"></span> <span class="line" id="L18"><span class="tok-kw">test</span> <span class="tok-str">"math.isNan"</span> {</span> <span class="line" id="L19"> <span class="tok-kw">try</span> expect(isNan(math.nan(<span class="tok-type">f16</span>)));</span> <span class="line" id="L20"> <span class="tok-kw">try</span> expect(isNan(math.nan(<span class="tok-type">f32</span>)));</span> <span class="line" id="L21"> <span class="tok-kw">try</span> expect(isNan(math.nan(<span class="tok-type">f64</span>)));</span> <span class="line" id="L22"> <span class="tok-kw">try</span> expect(isNan(math.nan(<span class="tok-type">f128</span>)));</span> <span class="line" id="L23"> <span class="tok-kw">try</span> expect(!isNan(<span class="tok-builtin">@as</span>(<span class="tok-type">f16</span>, <span class="tok-number">1.0</span>)));</span> <span class="line" id="L24"> <span class="tok-kw">try</span> expect(!isNan(<span class="tok-builtin">@as</span>(<span class="tok-type">f32</span>, <span class="tok-number">1.0</span>)));</span> <span class="line" id="L25"> <span class="tok-kw">try</span> expect(!isNan(<span class="tok-builtin">@as</span>(<span class="tok-type">f64</span>, <span class="tok-number">1.0</span>)));</span> <span class="line" id="L26"> <span class="tok-kw">try</span> expect(!isNan(<span class="tok-builtin">@as</span>(<span class="tok-type">f128</span>, <span class="tok-number">1.0</span>)));</span> <span class="line" id="L27">}</span> <span class="line" id="L28"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/math/sqrt.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>math/sqrt.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"../std.zig"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> math = std.math;</span> <span class="line" id="L3"><span class="tok-kw">const</span> expect = std.testing.expect;</span> <span class="line" id="L4"><span class="tok-kw">const</span> TypeId = std.builtin.TypeId;</span> <span class="line" id="L5"><span class="tok-kw">const</span> maxInt = std.math.maxInt;</span> <span class="line" id="L6"></span> <span class="line" id="L7"><span class="tok-comment">/// Returns the square root of x.</span></span> <span class="line" id="L8"><span class="tok-comment">///</span></span> <span class="line" id="L9"><span class="tok-comment">/// Special Cases:</span></span> <span class="line" id="L10"><span class="tok-comment">/// - sqrt(+inf) = +inf</span></span> <span class="line" id="L11"><span class="tok-comment">/// - sqrt(+-0) = +-0</span></span> <span class="line" id="L12"><span class="tok-comment">/// - sqrt(x) = nan if x < 0</span></span> <span class="line" id="L13"><span class="tok-comment">/// - sqrt(nan) = nan</span></span> <span class="line" id="L14"><span class="tok-comment">/// TODO Decide if all this logic should be implemented directly in the @sqrt builtin function.</span></span> <span class="line" id="L15"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">sqrt</span>(x: <span class="tok-kw">anytype</span>) Sqrt(<span class="tok-builtin">@TypeOf</span>(x)) {</span> <span class="line" id="L16"> <span class="tok-kw">const</span> T = <span class="tok-builtin">@TypeOf</span>(x);</span> <span class="line" id="L17"> <span class="tok-kw">switch</span> (<span class="tok-builtin">@typeInfo</span>(T)) {</span> <span class="line" id="L18"> .Float, .ComptimeFloat => <span class="tok-kw">return</span> <span class="tok-builtin">@sqrt</span>(x),</span> <span class="line" id="L19"> .ComptimeInt => <span class="tok-kw">comptime</span> {</span> <span class="line" id="L20"> <span class="tok-kw">if</span> (x > maxInt(<span class="tok-type">u128</span>)) {</span> <span class="line" id="L21"> <span class="tok-builtin">@compileError</span>(<span class="tok-str">"sqrt not implemented for comptime_int greater than 128 bits"</span>);</span> <span class="line" id="L22"> }</span> <span class="line" id="L23"> <span class="tok-kw">if</span> (x < <span class="tok-number">0</span>) {</span> <span class="line" id="L24"> <span class="tok-builtin">@compileError</span>(<span class="tok-str">"sqrt on negative number"</span>);</span> <span class="line" id="L25"> }</span> <span class="line" id="L26"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(T, sqrt_int(<span class="tok-type">u128</span>, x));</span> <span class="line" id="L27"> },</span> <span class="line" id="L28"> .Int => \|IntType\| <span class="tok-kw">switch</span> (IntType.signedness) {</span> <span class="line" id="L29"> .signed => <span class="tok-builtin">@compileError</span>(<span class="tok-str">"sqrt not implemented for signed integers"</span>),</span> <span class="line" id="L30"> .unsigned => <span class="tok-kw">return</span> sqrt_int(T, x),</span> <span class="line" id="L31"> },</span> <span class="line" id="L32"> <span class="tok-kw">else</span> => <span class="tok-builtin">@compileError</span>(<span class="tok-str">"sqrt not implemented for "</span> ++ <span class="tok-builtin">@typeName</span>(T)),</span> <span class="line" id="L33"> }</span> <span class="line" id="L34">}</span> <span class="line" id="L35"></span> <span class="line" id="L36"><span class="tok-kw">fn</span> <span class="tok-fn">sqrt_int</span>(<span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>, value: T) Sqrt(T) {</span> <span class="line" id="L37"> <span class="tok-kw">if</span> (<span class="tok-builtin">@typeInfo</span>(T).Int.bits <= <span class="tok-number">2</span>) {</span> <span class="line" id="L38"> <span class="tok-kw">return</span> <span class="tok-kw">if</span> (value == <span class="tok-number">0</span>) <span class="tok-number">0</span> <span class="tok-kw">else</span> <span class="tok-number">1</span>; <span class="tok-comment">// shortcut for small number of bits to simplify general case</span> </span> <span class="line" id="L39"> } <span class="tok-kw">else</span> {</span> <span class="line" id="L40"> <span class="tok-kw">const</span> bits = <span class="tok-builtin">@typeInfo</span>(T).Int.bits;</span> <span class="line" id="L41"> <span class="tok-kw">const</span> max = math.maxInt(T);</span> <span class="line" id="L42"> <span class="tok-kw">const</span> minustwo = (<span class="tok-builtin">@as</span>(T, <span class="tok-number">2</span>) ^ max) + <span class="tok-number">1</span>; <span class="tok-comment">// unsigned int cannot represent -2</span> </span> <span class="line" id="L43"> <span class="tok-kw">var</span> op = value;</span> <span class="line" id="L44"> <span class="tok-kw">var</span> res: T = <span class="tok-number">0</span>;</span> <span class="line" id="L45"> <span class="tok-kw">var</span> one: T = <span class="tok-number">1</span> << ((bits - <span class="tok-number">1</span>) & minustwo); <span class="tok-comment">// highest power of four that fits into T</span> </span> <span class="line" id="L46"></span> <span class="line" id="L47"> <span class="tok-comment">// "one" starts at the highest power of four <= than the argument.</span> </span> <span class="line" id="L48"> <span class="tok-kw">while</span> (one > op) {</span> <span class="line" id="L49"> one >>= <span class="tok-number">2</span>;</span> <span class="line" id="L50"> }</span> <span class="line" id="L51"></span> <span class="line" id="L52"> <span class="tok-kw">while</span> (one != <span class="tok-number">0</span>) {</span> <span class="line" id="L53"> <span class="tok-kw">var</span> c = op >= res + one;</span> <span class="line" id="L54"> <span class="tok-kw">if</span> (c) op -= res + one;</span> <span class="line" id="L55"> res >>= <span class="tok-number">1</span>;</span> <span class="line" id="L56"> <span class="tok-kw">if</span> (c) res += one;</span> <span class="line" id="L57"> one >>= <span class="tok-number">2</span>;</span> <span class="line" id="L58"> }</span> <span class="line" id="L59"></span> <span class="line" id="L60"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(Sqrt(T), <span class="tok-builtin">@intCast</span>(res));</span> <span class="line" id="L61"> }</span> <span class="line" id="L62">}</span> <span class="line" id="L63"></span> <span class="line" id="L64"><span class="tok-kw">test</span> <span class="tok-str">"math.sqrt_int"</span> {</span> <span class="line" id="L65"> <span class="tok-kw">try</span> expect(sqrt_int(<span class="tok-type">u32</span>, <span class="tok-number">3</span>) == <span class="tok-number">1</span>);</span> <span class="line" id="L66"> <span class="tok-kw">try</span> expect(sqrt_int(<span class="tok-type">u32</span>, <span class="tok-number">4</span>) == <span class="tok-number">2</span>);</span> <span class="line" id="L67"> <span class="tok-kw">try</span> expect(sqrt_int(<span class="tok-type">u32</span>, <span class="tok-number">5</span>) == <span class="tok-number">2</span>);</span> <span class="line" id="L68"> <span class="tok-kw">try</span> expect(sqrt_int(<span class="tok-type">u32</span>, <span class="tok-number">8</span>) == <span class="tok-number">2</span>);</span> <span class="line" id="L69"> <span class="tok-kw">try</span> expect(sqrt_int(<span class="tok-type">u32</span>, <span class="tok-number">9</span>) == <span class="tok-number">3</span>);</span> <span class="line" id="L70"> <span class="tok-kw">try</span> expect(sqrt_int(<span class="tok-type">u32</span>, <span class="tok-number">10</span>) == <span class="tok-number">3</span>);</span> <span class="line" id="L71"></span> <span class="line" id="L72"> <span class="tok-kw">try</span> expect(sqrt_int(<span class="tok-type">u0</span>, <span class="tok-number">0</span>) == <span class="tok-number">0</span>);</span> <span class="line" id="L73"> <span class="tok-kw">try</span> expect(sqrt_int(<span class="tok-type">u1</span>, <span class="tok-number">1</span>) == <span class="tok-number">1</span>);</span> <span class="line" id="L74"> <span class="tok-kw">try</span> expect(sqrt_int(<span class="tok-type">u2</span>, <span class="tok-number">3</span>) == <span class="tok-number">1</span>);</span> <span class="line" id="L75"> <span class="tok-kw">try</span> expect(sqrt_int(<span class="tok-type">u3</span>, <span class="tok-number">4</span>) == <span class="tok-number">2</span>);</span> <span class="line" id="L76"> <span class="tok-kw">try</span> expect(sqrt_int(<span class="tok-type">u4</span>, <span class="tok-number">8</span>) == <span class="tok-number">2</span>);</span> <span class="line" id="L77"> <span class="tok-kw">try</span> expect(sqrt_int(<span class="tok-type">u4</span>, <span class="tok-number">9</span>) == <span class="tok-number">3</span>);</span> <span class="line" id="L78">}</span> <span class="line" id="L79"></span> <span class="line" id="L80"><span class="tok-comment">/// Returns the return type `sqrt` will return given an operand of type `T`.</span></span> <span class="line" id="L81"><span class="tok-kw">pub</span> <span class="tok-kw">fn</span> <span class="tok-fn">Sqrt</span>(<span class="tok-kw">comptime</span> T: <span class="tok-type">type</span>) <span class="tok-type">type</span> {</span> <span class="line" id="L82"> <span class="tok-kw">return</span> <span class="tok-kw">switch</span> (<span class="tok-builtin">@typeInfo</span>(T)) {</span> <span class="line" id="L83"> .Int => \|int\| std.meta.Int(.unsigned, (int.bits + <span class="tok-number">1</span>) / <span class="tok-number">2</span>),</span> <span class="line" id="L84"> <span class="tok-kw">else</span> => T,</span> <span class="line" id="L85"> };</span> <span class="line" id="L86">}</span> <span class="line" id="L87"></span> </code></pre></body> </html>
repos/yazap/docs/src/std	repos/yazap/docs/src/std/math/isinf.zig.html	<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>math/isinf.zig - source view</title> <link rel="icon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAPNJREFUeNpi/P//PwMlgOXHUjly9E0G4hwgZmQiQZMqEK8H4v9QzUEgQSaoADK+zhH9iAGL+C0gDoAaNg9mGLoLfgA1awK9hS9gzgJxA9RQBmQDrgMxJzRMGKE4HYj/Ial5A8QmQLwCJoBsgBYW2+TR1ChDaWt4LOBxKsi/VUh8XiD+gq4IVyzwQAMJBoKwacZlAB8Qf0bi96IZhtOAe1D6LpqaEiz6rmEzQAeIzwGxCJpieFqApo/vQKyJboAaEBsAsSEupwI1MwKjGBTVHOhegMX5UajYRqiBjMgYmj400cVh0XgTiKdC0zhJgJHS7AwQYABm9EAdCKrEfAAAAABJRU5ErkJggg=="/> <style> body{ font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif; margin: 0; line-height: 1.5; } pre > code { display: block; overflow: auto; line-height: normal; margin: 0em; } .tok-kw { color: #333; font-weight: bold; } .tok-str { color: #d14; } .tok-builtin { color: #005C7A; } .tok-comment { color: #545454; font-style: italic; } .tok-fn { color: #900; font-weight: bold; } .tok-null { color: #005C5C; } .tok-number { color: #005C5C; } .tok-type { color: #458; font-weight: bold; } pre { counter-reset: line; } pre .line:before { counter-increment: line; content: counter(line); display: inline-block; padding-right: 1em; width: 2em; text-align: right; color: #999; } .line { width: 100%; display: inline-block; } .line:target { border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; background: #fafafa; } @media (prefers-color-scheme: dark) { body{ background:#222; color: #ccc; } pre > code { color: #ccc; background: #222; border: unset; } .line:target { border-top: 1px solid #444; border-bottom: 1px solid #444; background: #333; } .tok-kw { color: #eee; } .tok-str { color: #2e5; } .tok-builtin { color: #ff894c; } .tok-comment { color: #aa7; } .tok-fn { color: #B1A0F8; } .tok-null { color: #ff8080; } .tok-number { color: #ff8080; } .tok-type { color: #68f; } } </style> </head> <body> <pre><code><span class="line" id="L1"><span class="tok-kw">const</span> std = <span class="tok-builtin">@import</span>(<span class="tok-str">"../std.zig"</span>);</span> <span class="line" id="L2"><span class="tok-kw">const</span> math = std.math;</span> <span class="line" id="L3"><span class="tok-kw">const</span> expect = std.testing.expect;</span> <span class="line" id="L4"></span> <span class="line" id="L5"><span class="tok-comment">/// Returns whether x is an infinity, ignoring sign.</span></span> <span class="line" id="L6"><span class="tok-kw">pub</span> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">isInf</span>(x: <span class="tok-kw">anytype</span>) <span class="tok-type">bool</span> {</span> <span class="line" id="L7"> <span class="tok-kw">const</span> T = <span class="tok-builtin">@TypeOf</span>(x);</span> <span class="line" id="L8"> <span class="tok-kw">const</span> TBits = std.meta.Int(.unsigned, <span class="tok-builtin">@typeInfo</span>(T).Float.bits);</span> <span class="line" id="L9"> <span class="tok-kw">const</span> remove_sign = ~<span class="tok-builtin">@as</span>(TBits, <span class="tok-number">0</span>) >> <span class="tok-number">1</span>;</span> <span class="line" id="L10"> <span class="tok-kw">return</span> <span class="tok-builtin">@as</span>(TBits, <span class="tok-builtin">@bitCast</span>(x)) & remove_sign == <span class="tok-builtin">@as</span>(TBits, <span class="tok-builtin">@bitCast</span>(math.inf(T)));</span> <span class="line" id="L11">}</span> <span class="line" id="L12"></span> <span class="line" id="L13"><span class="tok-comment">/// Returns whether x is an infinity with a positive sign.</span></span> <span class="line" id="L14"><span class="tok-kw">pub</span> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">isPositiveInf</span>(x: <span class="tok-kw">anytype</span>) <span class="tok-type">bool</span> {</span> <span class="line" id="L15"> <span class="tok-kw">return</span> x == math.inf(<span class="tok-builtin">@TypeOf</span>(x));</span> <span class="line" id="L16">}</span> <span class="line" id="L17"></span> <span class="line" id="L18"><span class="tok-comment">/// Returns whether x is an infinity with a negative sign.</span></span> <span class="line" id="L19"><span class="tok-kw">pub</span> <span class="tok-kw">inline</span> <span class="tok-kw">fn</span> <span class="tok-fn">isNegativeInf</span>(x: <span class="tok-kw">anytype</span>) <span class="tok-type">bool</span> {</span> <span class="line" id="L20"> <span class="tok-kw">return</span> x == -math.inf(<span class="tok-builtin">@TypeOf</span>(x));</span> <span class="line" id="L21">}</span> <span class="line" id="L22"></span> <span class="line" id="L23"><span class="tok-kw">test</span> <span class="tok-str">"math.isInf"</span> {</span> <span class="line" id="L24"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> ([_]<span class="tok-type">type</span>{ <span class="tok-type">f16</span>, <span class="tok-type">f32</span>, <span class="tok-type">f64</span>, <span class="tok-type">f80</span>, <span class="tok-type">f128</span> }) \|T\| {</span> <span class="line" id="L25"> <span class="tok-kw">try</span> expect(!isInf(<span class="tok-builtin">@as</span>(T, <span class="tok-number">0.0</span>)));</span> <span class="line" id="L26"> <span class="tok-kw">try</span> expect(!isInf(<span class="tok-builtin">@as</span>(T, -<span class="tok-number">0.0</span>)));</span> <span class="line" id="L27"> <span class="tok-kw">try</span> expect(isInf(math.inf(T)));</span> <span class="line" id="L28"> <span class="tok-kw">try</span> expect(isInf(-math.inf(T)));</span> <span class="line" id="L29"> <span class="tok-kw">try</span> expect(!isInf(math.nan(T)));</span> <span class="line" id="L30"> <span class="tok-kw">try</span> expect(!isInf(-math.nan(T)));</span> <span class="line" id="L31"> }</span> <span class="line" id="L32">}</span> <span class="line" id="L33"></span> <span class="line" id="L34"><span class="tok-kw">test</span> <span class="tok-str">"math.isPositiveInf"</span> {</span> <span class="line" id="L35"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> ([_]<span class="tok-type">type</span>{ <span class="tok-type">f16</span>, <span class="tok-type">f32</span>, <span class="tok-type">f64</span>, <span class="tok-type">f80</span>, <span class="tok-type">f128</span> }) \|T\| {</span> <span class="line" id="L36"> <span class="tok-kw">try</span> expect(!isPositiveInf(<span class="tok-builtin">@as</span>(T, <span class="tok-number">0.0</span>)));</span> <span class="line" id="L37"> <span class="tok-kw">try</span> expect(!isPositiveInf(<span class="tok-builtin">@as</span>(T, -<span class="tok-number">0.0</span>)));</span> <span class="line" id="L38"> <span class="tok-kw">try</span> expect(isPositiveInf(math.inf(T)));</span> <span class="line" id="L39"> <span class="tok-kw">try</span> expect(!isPositiveInf(-math.inf(T)));</span> <span class="line" id="L40"> <span class="tok-kw">try</span> expect(!isInf(math.nan(T)));</span> <span class="line" id="L41"> <span class="tok-kw">try</span> expect(!isInf(-math.nan(T)));</span> <span class="line" id="L42"> }</span> <span class="line" id="L43">}</span> <span class="line" id="L44"></span> <span class="line" id="L45"><span class="tok-kw">test</span> <span class="tok-str">"math.isNegativeInf"</span> {</span> <span class="line" id="L46"> <span class="tok-kw">inline</span> <span class="tok-kw">for</span> ([_]<span class="tok-type">type</span>{ <span class="tok-type">f16</span>, <span class="tok-type">f32</span>, <span class="tok-type">f64</span>, <span class="tok-type">f80</span>, <span class="tok-type">f128</span> }) \|T\| {</span> <span class="line" id="L47"> <span class="tok-kw">try</span> expect(!isNegativeInf(<span class="tok-builtin">@as</span>(T, <span class="tok-number">0.0</span>)));</span> <span class="line" id="L48"> <span class="tok-kw">try</span> expect(!isNegativeInf(<span class="tok-builtin">@as</span>(T, -<span class="tok-number">0.0</span>)));</span> <span class="line" id="L49"> <span class="tok-kw">try</span> expect(!isNegativeInf(math.inf(T)));</span> <span class="line" id="L50"> <span class="tok-kw">try</span> expect(isNegativeInf(-math.inf(T)));</span> <span class="line" id="L51"> <span class="tok-kw">try</span> expect(!isInf(math.nan(T)));</span> <span class="line" id="L52"> <span class="tok-kw">try</span> expect(!isInf(-math.nan(T)));</span> <span class="line" id="L53"> }</span> <span class="line" id="L54">}</span> <span class="line" id="L55"></span> </code></pre></body> </html>

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